Method for obtaining micro-granulated premix shape

FIELD: biotechnologies.

SUBSTANCE: method involves advance preparation of dry raw material components containing a matrix and biologically active components; micronising of prepared dry components is performed till 5-150 mcm particle size. Micronised components are supplied to a drying microgranulator in which a fluidised bed is formed and mixing of granulated raw material components is performed with further microgranulation of the obtained mixture and its drying. Microgranulation and drying stages include stable toroidal movement of fluidised bed granules. Microgranulation stage involves addition to the mixture of soluble micro- and ultramicrocomponents by fine atomisation through an atomiser together with a binding agent solution at microgranule formation stage. Addition rate is 0.02-0.04 g/min per gramme of initial dry mixture; after stable toroidal movement of fluidised bed granules is formed, binding agent feed rate is increased up to 0.04-0.08 g/min per gramme of initial dry mixture. With that, granule test sampling is performed from time to time. After granules with size of 0.8-1.0 mm are formed, binding agent feed rate is decreased to 0.01-0.03 g/min per gramme of initial dry mixture and drying is performed at the temperature of 35-55°C.

EFFECT: method ensures uniform distribution of microelements by weight of microgranules, reduction of losses of microelements at their formation and reduction of dust formation at use of premix.

9 cl, 5 dwg, 1 tbl, 3 ex

 

The invention relates to biotechnology and forage production, in particular to the preparation of premixes and feed additives, including and contains a special complex of biologically active additives (BAA), which prevents Ecotoxical animals and birds through effective binding of toxins, stimulate the immune system and prevent the development of disorders in the gastrointestinal tract.

Currently developed various additives that reduce the toxicity of the feed, but also for the enrichment of animal feed vitamins, micro - and macro-elements, biologically active substances that have adaptogenic, boosting and growth promoting properties. In such a composition feed additives along with one or more chelators injected nutrients, amino acids, vitamins, enzymes, coenzymes, prebiotics, probiotics, hepatoprotectors, immunomodulating agents, emulsifiers, organic podnikatel and other biologically active substances, positive impact on the productivity of agricultural animals and birds.

In order to achieve maximum productivity of agricultural animals and poultry are widely used concentrated feed with multicomponent composition. In order to simplify the technology of preparation of producers to whom mekorma and directly of the economy-consumers prefer to use a single "universal" feed additive-premix. When this mineral and vitamin premixes turn into vitamin-mineral. Manufacturers often injected into the premix also antioxidants, preservatives, sorbents, medications antibiotic action, not caring about their compatibility and impact on each other.

Known premix (RF patent No. 2377865 published 10.01.2010) for piglets at weaning, according to the invention, includes vitamins A, D, E, K3B1B2B3B4B5B6B12the trace elements iron, manganese, zinc, copper, iodine, cobalt, selenium, antioxidant "Santorin", carotenoids, probiotics and wheat bran.

The known method (patent RF №2452194, published on 10.06.2012) correction of metabolic processes lactating cows during milking and fading extended lactation, which consists in the fact that cows are injected into the diet premix, which contains per kg: calcium - 200 g (content of calcium gluconate 20%); phosphorus - 20 g; sulfur - 50 g; vitamin - 650 mg; vitamin B2500 mg; vitamin B4- 1000 mg; vitamin B5- 5000 mg; vitamin B6- 650 mg; vitamin Bwith30 mg; vitamin b12-15 mg; Biotin, 100 mg; vitamin a - 600 mg; vitamin E, 500 mg; methionine - 25 g, "selenium-2000" - 10 g; zinc - 6000 mg; copper, 50 mg; cobalt - 50 mg; iodine 100 mg; magnesium - 30 g; vitamin D 200 mg In the filler used bran.

Known premix (PA is UNT of the Russian Federation No. 2156080, published 20.09.2000) for agricultural animals and poultry containing potassium iodide, cobalt salts, iron, zinc, manganese and copper, in the form of salts of cobalt, iron, zinc, manganese and copper it contains cobalt citrate, iron citrate, zinc citrate, manganese citrate, copper citrate, and optionally, sodium Selenite, succinic acid, ascorbic acid mycelium citric acid, obustroenny phosphate, lysine, methionine, and vitamins A, D3, E, B2B3B4B5B12and wheat bran.

A common drawback of these premixes is that their production is not taken into account the compatibility of biologically active substances (BAS) in premixes and their possible negative impact on each other in terms of chemical destruction of one under the other, and the deterioration of the digestibility of some components in the presence of their antagonists, or in the absence of synergists. From the article (Smut E. Preservation of vitamins In the vitamin-mineral complexes". The magazine "Feed", No. 5, 2011, s-80, No. 6, 2011, p.113-114) is known as the physical and chemical factors affect the stability of vitamins and is also known synergism and antagonism of vitamins.

The input of trace elements in the composition of the vitamin products also contributes to the problem of stability, because some of them I have are heavy metals, catalyzes the oxidative destruction of vitamins. Even small amounts of such elements as iron, cobalt, copper, Nickel, lead, cadmium, zinc, has a catalytic effect on the oxidative destruction of many vitamins (Vitamins and minerals: a Complete encyclopedia / ed.: Tpikalov. - SPb.: ID All, 2001. - 368 S.).

Vitamins and minerals in the composition of the premixes may chemically react not only with absorption in the gastrointestinal tract, but also in the manufacturing process and storage.

In practice, feed, produced with the use of such "complex" premixes, after a relatively short shelf life in the best case, will not provide the expected productivity in the worst break biobalance of the body and lead to disorder of the digestive system, as well as Hyper - or gipovitaminoza for certain types of vitamins. In addition, the cost of such Multicommodity great and if the effect is not achieved, it leads to lower profitability.

Based on these data, the question arises about the feasibility of simultaneous reception of all necessary items in one product. However, it is possible, firstly, when a science-based formulation of vitamin, mineral and vitamin and mineral premixes, secondly, the development of new those the ideological forms of mineral substances, vitamins and other dietary supplements. It is necessary to take into account that commercial forms of additives differ not only in terms of biological effectiveness, but also in terms of physical characteristics (particle size, electrostatics, flowability, raspadaemosti in the mixture and so on). This is no less important for the quality of premixes and compound feeds.

The loss of vitamins in highly mineralized complexes is the result of exposure to a variety of factors: the complexity of the composition; chemical and physical form of vitamins and minerals; the rate of redox reactions catalyzed by metals; packaging method; the presence of a free or bound moisture; the level of temperature and storage duration before entering in the feed; the presence of preservatives and sorbents; uneven distribution of components.

The unevenness of raspadaemosti micro - and ultramicrotomes may have a more significant negative effect than the lack of safety of biologically active substances. For example, it makes no sense to consider the loss of vitamin a during storage of the premix, if consumed by the animal in a single or even a daily dose of food it is not desired concentration because of poor raspadaemosti.

The ideal feed mixture (premix) should the and contain all components and nutrients in any unit of mass in the proportions defined by the recipe (Ianin, Umalatov, Hrechyshnykov, A. Panin. "Assessment of variations in the distribution of trace components in the daily diet". The magazine "Feed", No. 4, 2011, pp.31-31).

On the uniform distribution of the particulate components in the feed mixture is influenced by many factors, the most important of which is the process of mixing. Modern faucets provide uniformity of mixing at a high enough level (95-98%), while for all types of faucets and mixing parameters are saved General patterns:

- variation of nutrient content in the feed will be greater, the smaller is the level of input components that contain this nutrient;

- variations in the content of nutrients from the average value in a given sample feed will be greater, the smaller the mass of a sample.

The last pattern is seen in the fact that the volume of the daily diet of different species and age groups of animals are significantly different; the food with the same characteristics of homogeneity may be satisfactory for one group (with a large amount of feed intake) and poor for the other (low consumption), that is, variations of some components with low dosage, daily rations, a small weight may be above, h is m in the feed as a whole. A measure of the uniformity of the distribution of each of the i-th component or nutrients is the coefficient of variation Cvi. A random distribution of particles of the i-th component obeys the Poisson law. Calculations show that for microcomponents this ratio is performed.

To low doses of biologically active substances were evenly distributed in small doses, food, media must be sufficiently crushed. The particles of the components of the feed mixture typically vary in shape and size. When mixed fodder production to estimate the size of its particles typically use the sieve method, allowing you to build granulometric curves. An important characteristic of these curves is the index of d50characterizing the average particle diameter microcomponent after grinding and constitutes 50% of the extreme values (fine and coarse).

At the same particle sizes salts of trace elements in daily diets of Chicks, chickens and pigs are observed substantially different variations on the content of various minerals. If the content of iron, manganese and zinc are no problems in the uniformity of their distribution even in the diet of chickens, the same cannot be said about the cobalt, iodine, selenium with a very high variation even in the daily diet of pigs. Note, the value of Cvi>100% on any of the microelements is into means, there is a strong likelihood that in the daily diet of any animal will not be any particle of a given substance.

The homogeneity of the particle distribution of trace elements in this case can be improved not improved designs of faucets and finer grinding of the particles.

Using this technique not only is the assessment of variations in the distribution of BAS in the daily diets of animals with known parameters of the particles, but also solved the inverse problem: calculating a desired particle size BAS (fineness of grind), in which variations in daily diets do not exceed specified values.

The optimal value of the particle diameter dimedia BAS to provide the desired values of the coefficient of variation can be calculated by the formula (1):

di=10030,6MpandCAiCvi2Kiπρi(1)

where: dioptimal particle size of the carrier of trace elements in the diet, mcm;

Mrat- weight daily ration in grams (for example, chickens - 1 g, for laying hens 110 g for pigs for fattening - 2500 g);

Aithe specific content of the i-th substance in animal feed or premix (in the rations specified in the form of its mass fraction or ratio with other components, for example);

Cviallowable coefficient of variation (for example, 5% - 0,05);

Kithe concentration of the i-th active substances used in the connection (typically, these substances are used in the feed is not in pure form and in the form of compounds which are also characterized by the concentration of the i-th BAS);

ρithe density of the carrier of the i-th component, g/cm3(it is assumed that the i-th substance in his carrier evenly distributed).

For example, the calculation results for selenium given in the article (Ianin, Umalatov, Hrechyshnykov, A. Panin. "Assessment of variations in the distribution of trace components in the daily diet". The magazine "Feed", No. 4, 2011, pp.31-31)indicate that the actual average particle size of sodium Selenite 320 μm and the coefficient of variation in the daily diet of chickens, laying hens and fattening pigs was more than 348, 121 and 25%, respectively. To achieve an acceptable coefficient of variation of 5% in the diet of chickens, laying hens and pigs particles of sodium Selenite must be crushed to 19, 38 and 108 μm, respectively. It is known that from day old Chicks can skarm is to feed, the components of which must be in the form of a crumble with particle size 0.5-1.0 mm (7. Whitenin, Iagaru, Timoclea, Shaimurunov. "Scientific basis of feeding poultry". / edit Vthkvnthv - Sergiev Posad: VNIITIP, 2008. - 352 S.).

Equation (1) proves that the values of particle diameters carriers of trace elements are in direct dependence on the mass of the diet and inversely proportional to the density of the medium and concentration of the substance in the media.

Besides the most well-known ways to get a variety of microgranular additives (enzyme phytase - RF patent №2275052 published 27.04.2006; vitamin b5Pantothenic acid - RF patent №2275818 published 10.05.2006; urea - RF patent №2283171 published 10.09.2006; microbes-probiotics - RF patent №2323586 published 10.05.2008; the amino acid lysine - RF patent №2415601, published on 10.04.2011) does not bind the problems of the qualitative distribution of the additives in the diet with dimensions microtrenching components of the additive, the amount of micro granules and bulk density of the obtained product (premix) and as a result does not solve these problems.

In a production environment to get the perfect fodder impossible due to the heterogeneity of the chemical composition of the components, errors in dosing, nonideal mixing occurring deviations in the analysis is the izam of raw materials and finished products. If the optimal solution of these problems, you will still need a certain number of particles-carriers of the properties of each biologically active ingredients of the premix in order to distribute them in the feed with the required coefficient of variation. The cost of expensive high-precision dispensers, faucets with high levels of distribution, and other sophisticated equipment will not be fully justified, if not it will be acceptable provided the ratio between the particle size BAS premix and the level of their input in the feed.

In connection with the foregoing it is appropriate to use in diets of animals or production of animal feed several (at least two species) premix: macro-, micro - and ultramicrotomes.

For example, patent RF №2332022 (published 27.08.2008) protects special premix for laying hens and how it is used in feed along with the usual mineral-vitamin premix. Additional premix contains selenium, vitamin E and as a filler corn gluten in the following ratio of components: selenium - 0,0014-0,0020 wt.% (of 0.014-0.020 kg/t of premix), vitamin E - 2,8-4,0 wt.% (28-40 kg/t of premix), corn gluten meal - rest. The feeding of poultry, in particular chickens, hens, characterized by the fact that together with jus the m diet, balanced in amino acids, vitamins, macro - and trace elements (Ca, P, Na, Fe, Cu, Zn, Mn, I, Se), the bird with 16 weeks of age fed the proposed premix in the amount of 2,9-3,1% by weight of the feed with the purpose of obtaining eggs with a balanced content of vitamin E, selenium and carotenoids.

A common drawback of these solutions is the lack of technologies for industrial production of premix, which allows you to remove the above-mentioned limitations and contradictions.

In addition, a method of obtaining supplements for animal feed based on fermentation broth (RF patent No. 2180175 published 10.03.2002), thus we receive the Supplement contains all or most of the fermentation product and other ingredients of the fermentation broth, the fermentation broth is subjected in the fluidized bed granulating, compacting and drying for one stage, and the energy in a quantity sufficient to reduce the average diameter of the grains and increase the bulk density, is additionally injected into the fluidized bed in a mechanical way, as an extension to the energy required to create a fluidized bed. Due to this it is possible, in particular, for a single stage of the way in a continuous mode to get appropriate to the terms of the regulation of the feed additive in the form of a granulate, is such as lysine, threonine or tryptophan, using primarily the crude fermentation broths as source material. The method allows a continuous and stationary mode to receive the feed product with extremely low hygroscopicity, the corresponding feed regulatory standards. Options allow you to get the feed additive particles with an average size of 0.1 to 1.5 mm, and 95% of the particles are obtained from the size of 0.3-1.2 mm; bulk density derived feed additive ranges from 690 to 750 kg/m3.

The closest analogue to the patented solution is the method of preparation of premix for livestock, providing a mixture of salts of trace elements with filler, and as salts of trace elements using copper carboxymethylcellulose obtained by mixing 20%copper sulfate solution and a 20%aqueous solution of sodium carboxymethyl cellulose in a ratio of 1:4 in the form of a precipitate, followed by washing, drying, and grinding and stable potassium iodide, characterized in that the potassium iodide used in the form of crystals, coated with a melt of food stearin with a ratio of iodide of potassium:stearin 4:1, respectively (patent of the Russian Federation No. 2229244 published 27.05.2004).

All considered methods of obtaining microgranular feed additives due to the of osobennosti their hardware implementation are of limited use compared to the claimed method. In particular, the use of a continuous method of obtaining micro-granulate entails unavoidable significant and uncontrolled loss of micro - and ultramicrochemical prior to installation in stationary mode. In addition, the complexity of managing a continuous process with precise dosing of even a small number of micro - and ultramicrochemical is not possible to achieve satisfactory results in practice.

Objective of the claimed method is fodder additive with uniformly distributed micro - and ultramicrobalance, with a narrow particle size distribution and controlled bulk weight.

The technical result of the patented method is the improvement of consumer properties and efficiency of premixes and feed additives due to uniform distribution of trace elements by mass of microgranules, and reduced losses of trace elements in the production process and reduction of dust during use of the premix due to its granulation.

The claimed technical result is achieved by the method of obtaining the microgranular form of a premix consisting in the preparation of dry ingredients raw material containing a matrix and biologically active components, conducting micromilieu prepared dry component of the RC until the particle size of 5-150 microns, filing microtrenching components in the dryer-microgranulated, which form the fluidized bed, and carry out the mixing of the crushed raw components with subsequent microgranuloma resulting mixture and drying, while at the stages of microgranulate and drying to form a stable toroidal movement of the granules fluidized bed, and at the stage of microgranulate in the mixture injected soluble micro - and ultramicrobalance by fine spray through the nozzle together with a solution of the binder during formation of microgranules, and the speed is 0.02-0.04 g/min per gram of initial dry mixture, after the formation of a stable toroidal motion of the granules fluidized bed increases the feed rate of the binder to 0.04 0.08 g/min per gram of initial dry mix, while periodically carry out control and selection of the pellets, and after the formation of granules with a size of 0.8-1.0 mm reduce the feed rate of the binder to 0.01-0.03 g/min per gram of initial dry mix components and carry out drying at a temperature of 35-55°C.

Dryer-microgranulated apparatus periodic action with intense and orderly circular motion of the particles of the fluidized bed in the minimum volume of the working zone of the apparatus, the spray liquid directly into the fluidized bed, is AutoRAE allows you to create a stable toroidal motion of the fluidized bed and is characterized by the absence of pylones from the working area of the machine. The intensity of the motion of particles is necessary and sufficient for the destruction of large agglomerates of irregular shape.

Such a device is disclosed in the patent of Russian Federation №2394638 (published 20.07.2010). The device is made in the form of a cylindrical tank with high walls that limit the working chamber. In the bottom of the working chamber is the site of the gas feed. While the bottom consists of at least ten ring located ledges, one above the other guide plates, which are located one above the other so that the bottom plate is radially external, connected with the wall of the annular guide plate, above which are the other nine radially inner annular plates, each of which partially overlaps with the directly below her plate. Between the plates formed annular gap, through which the working chamber is delivered working air. In the Central opening in the center, the upper radially inner plates are inserted from below the annular slit nozzle that has a nozzle with at least three output slots which are oriented so that they provide atomization of the liquid is approximately parallel to the bottom, i.e. approximately in the horizontal plane, within the angular sector length is awn, equal to 360°. Through the upper output gap and through the lower output gap is supplied under pressure spray air, and through the middle slit served the sprayed liquid (a mixture of micro - and ultramicrochemical with a solution of binder).

The annular slit nozzle has starinavity case that goes down and inside of which there are appropriate channels and supply lines.

Such annular slit nozzle can be performed, for example, with a rotating annular gap, in which the walls of the channel through which atomized liquid, rotate relative to each other in order to avoid clogging of the channel in the work and to ensure thereby a uniform spray of liquid through the output gap in the entire sector of angular extent equal to 360°. Thus, relative to the longitudinal axis of the housing annular slot nozzle spray angle is 180°.

Over its output part of the annular slit nozzle has a conical head.

Under the spray of the annular slit nozzle is provided having the shape of a truncated cone skirt with lots of holes.

Coming out of the spray jet spray has a flat shape. Coming out of the holes in the conical skirt air forms on the lower side of the jet spray air support is Otok. Leaving many gaps working air forms a radial flow directed to the wall. The particles of the treated material is separated from the working air that is discharged through the exhaust holes and the particle vorticity of the processed material moving radially inward and under their own gravity fall vertically onto a tapered cylinder, an annular slit nozzle. After contact with the conical head of the falling particles of the mixture components smoothly change the direction of its movement, are directed to the upper side of the jet of sprayed liquid and processed it sprayed medium (fluid). Dipped sprayed liquid particles in the jet of sprayed liquid, diverge from each other, because immediately after removal from the ring of the spray particles are in the space larger. While in the jet of sprayed liquid, the particles of processed material facing the liquid droplets are removed from each other, continuing to move in the same direction and at the same time extremely evenly and efficiently processed working air dried. Thus, in the apparatus with fluidized bed is formed of a toroidal motion fluidized bed.

If necessary, the formation of dust is innych powders of larger agglomerates, i.e. optionally granulating the processed material, in such a rotating toroidal vortex flow through a nozzle is additionally sprayed adhesive environment. For example, in the bottom of the working chamber is inserted facing upward spray nozzle.

As a matrix you can use microtrenching lignin hydrolysis, yeast, mineral desiccant, binder, or with the purpose of obtaining microgranules higher density and with a large bulk weight, mineral porous media with higher density selected from a range of mineral sorbents in ascending order of specific weight: expanded vermiculite, silica clay, marl, bentonite, dolomite, montmorillonite, clinoptilolite, zeolite, glauconite, shungite.

Dryer-microgranulated before introduction of the mixture microtrenching components it is desirable to heat the air stream to a temperature of 45-75°C.

The ratio microtrenching components, such as lignin hydrolysis, yeast and mineral sorbent is preferably selected from the range of 7:2:1 to 5:3:2.

In order to reduce buildup on the walls and accelerate the formation of a stable toroidal motion of the granules fluidized bed in the dryer-granulator first mix mikrosmeshcheniya hydrophobic and hydrophilic porous media: gidroliznyh and mineral sorbent, begin the process of microgranulate by filing a binder and after the beginning of the formation of a stable toroidal motion of the first pellets download microtrenching fodder yeast, and then continue the process of microgranulate and drying of microgranules.

This hydrophobic carrier is a waste product of furfural - tsellolignin, rested in bed in the dumps Sumerische chemical and Rechitsa hydrolysis plants at least 15 years. In use as a binder solution containing a mixture of polysaccharide and disaccharide in the ratio from 1:0 to 1:0.5 or solution arabinoxylan - waste production digidrokvertsitina obtained by extraction from larch wood, or a solution of arabinoxylan - waste production betulin, obtained by extraction from birch wood, and in the solution of the binder is dissolved chelate and/or ORGANOMETALLIC compounds of micro - and ultramicrochemical premix: iron, magnesium, manganese, copper, selenium, iodine, cobalt, Nickel, silver, titanium.

In the coating on the particles of processed material of the coat should be applied, i.e. naprashivaetsa, already krupnicza the most uniform particle layer.

In the apparatus can be used injectors wide variety of designs, which are based on the same bsem principle, consisting in a thin dispersion of a normally liquid or powder processing material spray the air in the form of fog and smoke. To this end, known to use, for example, a slit nozzle, spray gun which has a slit outlet for flow through him fluids under high pressure and outlet openings for spraying air, which can be located either on one side or on both sides of the slotted outlet opening for the liquid. Depending on the spray angle and the angular extent of the sector atomization of a liquid jet of sprayed liquid may have a beam, conical, or more or less flat shape. When the angle of dispersion equal to 180°, and the angular extent of the sector of spray liquid, equal to 360°, is formed almost flat jet spray. In our case, in the bottom center there is a circular slit nozzle, the nozzle which is arranged to spray the liquid in the form of a flat jet, approximately parallel to the plane of the bottom.

When handling powdered material according to this technology, which is widely used in the pharmaceutical industry, strive to provide maximum uniform result, i.e. when granulating - obtain granules with an extremely narrow Gran is americasteam composition, and when the coating is applied to all particles one of which is located in the installation party the most uniform coating layer, i.e. the first layer of constant thickness. A serious problem with which we have to face is that the uncontrolled chaotic movement of particles of the processed material, moistened with moisturizing and usually adhesive spray liquid, stick to the wall and stick together with each other with formation of undesirable agglomerates.

For this reason, it is advisable to provide a well-defined nature of the movement flows in toroidal rotating flow of the treated material to obtain optimum results it is processed. Thus, in particular, it is expedient to provide at the very beginning of the process of moving particles of the processed material after wetting wetting liquid along the trajectories on which they were away from each other at the maximum possible distance, but not close to each other to avoid the formation of undesirable agglomerates.

The claimed method of producing premix assumes the existence of a stage of microgranulate along with the stage of micromelia and mixing technology premixes.

Micromelia mineral, poorly soluble, solid components of the premix carry out the traditional known methods in the mills of the appropriate type, if necessary, sift powdered material to obtain the desired particle size.

Micromelia organic, insoluble, elastic, fibrous materials, it is desirable to implement mills rotary-jet type with built-in classifier particles (for example, known from A.B. Lepilin, M.V. Veksler, NV Korenugina, A.M. Morozov. "Combined mill-heater for complex processing of vegetable raw materials". The journal of Polymeric materials", No. 9, 2012, p.30-35) at a temperature of 40-85°C, the average size of the crushed particles should be equal to from 20 to 250 microns.

If necessary, micromelia and mechanochemical activation takes place simultaneously, for example, a method for producing a feed additive for the prevention of mycotoxicoses in animals and birds, consisting of mechanochemical treatment of the raw material components with subsequent microgranulate mixture, the components of a mixture of at least one mineral sorbent, hydrolytic lignin and cell wall of yeasts, while mechanochemical processing consists of crushing the individual components or mixtures of components and their treatment in the presence of at least one complex enzyme preparation, affecting residual polysaccharides hydralisk the th lignin and polysaccharides of the cell wall of yeast, followed by microgranuloma the resulting milled mixture.

The claimed method involves combining the stages of mixing, microgranulate and drying of microgranules in one machine dryer-microgranulate. If necessary, in the same apparatus can be performed subsequent microencapsulation (coated microgranules containment) and dried microencapsulated product.

Insoluble mikrosmeshcheniya components of the premix, predominantly medium (matrix), filler or ballast substance. In the mixing process to form the fluidized bed apparatus in which the process of microgranulate will form larger agglomerated particles of the optimum size of 0.8-2.0 mm and a bulk weight of 0.4-0.8 g/cm3. Insoluble microadditives must be entered before starting the process of microgranulate in a fluidized bed of carrier, filler or fibre in the mixing process in the last turn.

In the proposed method as the basic carrier, filler or fibre encouraged to use microecology lignin and/or microecology tsellolignin - waste hydrolysis plants, including waste, rested in bed in the dumps 10-20 years. It should be noted that in use the expression "the ball is astnye substances" - components of the feed - does not imply useless ballast, because we are talking about a complex group of substances with a variety of physiological effects. Overall they have what they pass through the small intestine, not perevarivaemy. All organic dietary fibre feeds are polysaccharides, with the exception of lignin - polymer of phenylpropane. Chemical definition says: ballast substances are non-starch polysaccharides (or structural carbohydrates) plus lignin.

Introduction soluble micro, ultramicro - and nano-additives is carried out in the process of microgranulate. Insoluble substances, for example metals, it is desirable to introduce in the process of microgranulate in the form of a chelate or soluble ORGANOMETALLIC compounds, nonmetals - in the form of a soluble complex compounds by fine spraying in a fluidized bed of granulated material through the nozzle apparatus-granulator separately or together with a binder liquid.

Then the solution is illustrated by reference to figures and concrete examples of implementation of the method.

Production of 0.2%premix feed additive for the prevention of mycotoxicoses in farm animals and poultry prepared in accordance with the process scheme shown in figure 1, accomplishing technology (IT) is the control (CO) operation.

The examples and the order of execution of operations demonstrate, but do not reveal the secrets and do not exhaust the possibilities of the developed technology of production of high-precision feed additives.

EXAMPLE 1.

Prepared dry mixture of micronized components: feed yeast, hydrolyzed lignin and montmorillonite from the Belgorod region in a weight ratio of 60, 30 and 10%, respectively. In a laboratory setting, which simulates the classical fluidized bed granulator with a disorganized stream of air, were placed 400 grams of this mixture. The initial speed of the air through the pellet volume of 30 liters was 34-35 m3/hour. The temperature of the incoming air to 65°C. Through a nozzle located in the lid of the working chamber, filed binder liquid at a rate of 24 ml/min. as a binder liquid used 500 ml of an aqueous solution of 20 g of carboxymethylcellulose (CMC) and 20 g of sucrose. The temperature of the binder supported 55-60°C to reduce the viscosity of the solution.

The presence in the mixture of hydrophobic media - micronized lignin - does not allow microgranulate in these conditions. The pellets have not been obtained.

EXAMPLE 2.

On the test bench VENTILUS 2.5/1, produced by INNOJET, mounted process unit comprised of a bottom spray nozzle, gazoraspredeleniye is a recreational site, the return system fine powder in the working area of granulation. Thus, the installation of microgranulate had a working camera to handle it powdered material with a bottom, which was formed by several spaced one above the other mutually overlapping annular guide plates between which is formed an annular gap for flow through them working air directed radially outward of the horizontal component of its motion, and in the centre there is a circular slit nozzle, the nozzle which is arranged to spray the liquid in the form of a flat jet, approximately parallel to the plane of the bottom. The internal working volume manufacturing unit was 10 liters. Other initial conditions were as in Example 1. The composition contained a mixture of micronized components: feed yeast, hydrolyzed lignin and montmorillonite from the Belgorod region in a weight ratio of 60, 30 and 10%,

Table 1 shows the changes of the main parameters of the process of microgranulate and drying.

Were obtained homogeneous granules with a residual moisture content of 6%.

Particle size and uniformity of the granules was evaluated on the unit ANALYSETTE 22 firms FRITSCH. The figure 2 shows the particle size distribution of three about ascov, selected from one party randomly. The estimated average diameter of microgranules amounted to 755, 753 and 734 μm, the ratio (d90-d10)/d50was 0.84, with 0.93 and 0.88, respectively; and 55% of the particles are obtained from the size of 0,2-0,8 mm

Bulk density of the samples was determined using the tester to determine the bulk volume of the powder SMG 53 466 firms ERWEKA. Bulk density of these three samples was 0,311 g/cm3, MX 0.317 g/cm3, 0,322 g/cm3respectively.

EXAMPLE 3.

Prepared individual dry micronized sample components in a weight ratio of 60, 30 and 10%: 240 g fodder yeast, 120 g of hydrolytic lignin and 40 g of glauconite Tambov field, respectively. The initial parameters were set as in Example 2. In addition to 500 ml of binder liquid (5% CMC solution without sucrose) was added and mixed 16 ml of alcoholic solution of a known selenium-organic drug DAFS-25. The alcohol solution is prepared by dissolving 500 mg DAFS-25 in 50 ml of ethanol. In the heated flow of the working air installation when the download mode using pneumatic downloaded microecology mineral hydrophilic carrier - glauconite was the most dense media, and then the hydrophobic carrier - lignin, began the process of microgranulate by filing Masoumeh for 10 minutes at a rate of 12 g/min after the start of the formation of a stable toroidal motion of the first granules start to download the sticky component fodder yeast and then gradually increase the flow binding to the injector to 24 g/min After 20 min process note the formation of granules of sufficient size (0.8-1.0 mm), the flow of the binder again reduced to 12 g/min to the full utilization of the entire volume of the binder. Final drying of microgranules continued until a residual moisture content of 6%.

Granulometric composition (figure 3) and the uniformity of the granules was evaluated on the unit ANALYSETTE 22 firms FRITSCH. The estimated average diameter of microgranules were: 526, 505 and 518 μm, the ratio (d90-d10)/d50was 1.02, the 1.04 and 1.04, respectively; and 85% of the particles are obtained from the size of 0,2-0,8 mm

Bulk density of the samples was determined using the tester to determine the bulk volume of the powder SMG 53 466 firms ERWEKA. Bulk density of these three samples constituted 0.408 g/cm3, 0,415 g/cm3, 0,412 g/cm3respectively.

The anticipated content of Se in porous microspheres 0.1 mg/g, or 0.01% or 100 ppm.

For the determination of Se and evaluation of its distribution in the mass of finely granulated additives used rentgenofluorestsentnyi method of analysis (XRF) using two different classes of devices with different lower detection limit of the element.

The spectrometer S2 PICOFOX BRUKER uses the principle of XRF with full external reflection (XRF systems. X-ray the beam, the generated x-ray tube with Mo anode is converted into a homogeneous multilayer monochromator Ni/C. After that, a narrow beam impinges on the substrate with the sample at a small angle (0.3°-0.6°) and is reflected by the surface under the effect of total external reflection. The characteristic fluorescent radiation from the sample is logged semiconductor detector XFIash® (silicon drift detector SDD), and the intensity is measured using an amplifier, connected to a multichannel analyzer. The spot size on the substrate, which analyzes the instrument in a standard 1x1 mm, the lower limit of detection of Se in solids biogenic and inorganic substances of 1.4 ppm. For calibration of the instrument used 10, 20, 30 and 40 μl of an alcohol solution of DAFS-25.

The average content of Se in the microgranular the particle was estimated by 89.8 ppm.

Desktop scanning electron microscope Phenom proX has a built-in X-ray analysis system with a specially designed EDS detector, which analyzes X-rays are generated by bombarding the sample with an electron beam. Model Phenom proX allows not only to visually assess the size and structure of the object (microspheres), but also automatically analyze the percentage of elements on the surface of the object on an area of 1×1 μm.

The study of a large number microgranule revealed the content of Se on the surface more than the lower limit of sensitivity of 0.01% device Phenom proX. A negative result allows us to conclude that the trace element Se is evenly distributed on the surface of the microgranules. In figures 4 and 5 show typical results of elemental analysis on the surface of the microparticles of glauconite and hydrolytic lignin included in the microspheres.

1. The method of obtaining the microgranular form premix for livestock and poultry, characterized by the fact that carry out a preliminary preparation of the dry components of the raw material containing a matrix and biologically active components, conduct micromelia prepared dry ingredients until the particle size of 5-150 microns, then in the dryer-microgranulated serves mikrosmeshcheniya components that form the fluidized bed, and carry out the mixing of the crushed raw components with subsequent microgranuloma resulting mixture and drying, while at the stages of microgranulate and drying to form a stable toroidal movement of the granules fluidized bed, and at the stage of microgranulate in the mixture injected soluble micro - and ultramicrobalance by fine spray through the nozzle together with with a solution of the binder during formation of microgranules, and the speed is 0.02-0.04 g/min per gram source is th dry mix, after the formation of a stable toroidal motion of the granules fluidized bed increases the feed rate of the binder to 0.04-0.08 g/min per gram of initial dry mix, while periodically carry out control and selection of the pellets, and after the formation of granules with a size of 0.8-1.0 mm reduce the feed rate of the binder to 0.01-0.03 g/min per gram of initial dry mix components and carry out drying at a temperature of 35-55°C.

2. The method according to claim 1, characterized in that as a matrix use the hydrolytic lignin, and/or yeast and/or mineral sorbent, and/or tsellolignin of Sumerische or Rechitsa dumps, rested in bed in the dumps hydrolysis plants at least 15 years.

3. The method according to claim 1, characterized in that the dryer-microgranulated before introduction of the mixture microtrenching components heated by the flow of air to a temperature of 45-75°C

4. The method according to claim 1, characterized in that the ratio microtrenching components, such as lignin hydrolysis, yeast and mineral sorbent is selected from the range of 7:2:1 to 5:3:2.

5. The method according to claim 2, characterized in that as a mineral sorbent use of expanded vermiculite, silica clay, marl, bentonite, dolomite, montmorillonite, clinoptilolite, zeolite, glauconite, shungite.

6. The method according to claim 1, characterized in that as the light of the existing use solution, containing a mixture of polysaccharide and disaccharide in the ratio from 1:0 to 1:0.5 in.

7. The method according to claim 1, characterized in that the binder used solution of arabinoxylan - waste production digidrokvertsitina obtained by extraction from larch wood.

8. The method according to claim 1, characterized in that the binder used solution of arabinoxylan - waste production betulin, obtained by extraction from birch wood.

9. The method according to p-8, characterized in that the binder solution is dissolved chelate and/or ORGANOMETALLIC compounds of micro - and ultramicrochemical premix: iron, magnesium, manganese, copper, selenium, iodine, cobalt, Nickel, silver, titanium.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing moulded titanium-containing zeolite. Powdered titanium-containing zeolite is moulded with binding material in form of a basic salt of aluminium 5,6-oxynitrate. The granules undergo drying at room temperature and at temperature 100-150°C, and are annealed at temperature 250-350°C.

EFFECT: high strength of zeolite granules and low power consumption.

5 ex

FIELD: technological processes; construction.

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4 ex

FIELD: coal industry; municipal services; other industries; methods and devices for production of the grained solid fuel.

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EFFECT: the invention ensures the reduced power input for the production process, simplification of the production process, improvement of ecology, the increased efficiency of production of the final product.

5 cl, 1 tbl, 1 dwg, 8 ex

FIELD: agriculture; chemical industry; other industries; methods of conditioning of the granulated fertilizers.

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EFFECT: theinvention ensures, that the treated granules of the fertilizer have obtained the qualitative coating reducing the blocking property of the fertilizer.

2 cl, 2 ex

FIELD: chemical industry; methods of production of the granulated carbamide.

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8 ex, 1 tbl

FIELD: manufacture of fertilizers; equipment for production of granulated carbamide.

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3 cl, 1 dwg, 10 ex

FIELD: inorganic substances technology.

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2 cl, 2 tbl

FIELD: mineral fertilizers.

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2 cl, 3 ex

The invention relates to a process of granulation of materials of different nature, in particular to the granulation of peat and tomfooleries mixtures, fertilizer, chemical and other ultra-fine powders, carbon and mineral fibers, coal dust, animal feed, clay

FIELD: process engineering.

SUBSTANCE: invention describes method of fine material processing in spouted bed and device to this end. Outer circular gap located in Y-Z plate of processing chamber is used to create circular gas flow of fluidizing agent, its diameter in X axis increasing towards processing chamber outer wall. Note here that Inner circular gap located in Y-Z plate of processing chamber is used to create circular gas flow of fluidizing agent, its diameter in X axis increasing inside processing chamber.

EFFECT: fine material processing in spouted layer, simplified and improved design.

18 cl, 2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to method and devices for making pellets of crystalline salts. At least, one injection zone is created in fluid bed and, at least, one pelletising zone. Pellets are extracted from one pelletising zone to separated them into three fractions. Fraction of preset size pellets is directed to processing to target product pellets. Fraction with pellets with size exceeding preset one is removed from pelletising process. Fraction with size under preset one is directed into feeder flow of germ particles to cause heat exchange from fluidisation zone in classifier. Proposed method is implemented in pelletiser comprising reactor 10 with fluid bed formed above air distribution grating 11 when fluidising air 17 is forced through grating 11. Pelletiser reactor represents vertical rectangular cross-section column converging to funnel at its top section, said funnel making fluidised air outlet. Separation web 18 divides pelletiser reactor into injection section 12 and pelletising section 13. Pelletising section houses classifier 21 including seat of heat exchanger tubes 20.

EFFECT: pelletising by spraying, higher efficiency and quality.

10 cl, 6 dwg, 4 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering for producing calcium chloride in granular form. Granular calcium chloride is obtained in a fluidised bed apparatus, said fluidised bed being formed by a stream of furnace gases and having temperature 150-200°C, flow rate of gases in the layer of 2.5-3 m/s, hydraulic resistance of the fluidised bed of 500-700 kg/m2, further evaporation of the solution and sputtering thereof onto granules with concentration 50-55% and temperature 115-130°C.

EFFECT: invention enables to obtain granular calcium chloride with high apparent density and increases efficiency of the drier and the fluidised bed.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention can be used in production of detergents and bleaching agents. Granular sodium percarbonate is obtained through granulation in a fluidised bed which contains sodium percarbonate particles, into which aqueous hydrogen peroxide solution and aqueous sodium carbonate solution are sprayed through at least one multi-component nozzle with external mixing, with simultaneous evaporation of water. The sodium carbonate solution additionally contains sodium carbonate and/or sodium percarbonate in suspended form. Before feeding into the multi-component nozzle, the sodium carbonate solution is passed through a mechanical disperser to disperse solid substances using shearing force created between the stator and the rotor.

EFFECT: invention enables to avoid clogging of multi-component nozzles and return dust-like sodium percarbonate, separated from the stream going out of the fluidised gas layer, into the granulation process.

5 cl, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to production of carbamide granules with sphericity of over 75% and residual moisture content equal to or lower that 0.5% in jet layer apparatus. Fluid containing carbamide is fed into carbamide solid particle flow in apparatus with jet layer. Said carbamide solid particle flow is supported by gas flow fed from behind. Gas flow is fed into apparatus working chamber 8 approximately horizontally and turned therein. Carbamide particle-gas flow 15 is fed to jets 2 in working chamber 8 from lateral side. Note here that carbamide particle-gas flow rate between has jet entry at working chamber 8 and injection zone is increased by adjustable gas nozzles. Fluid containing carbamide is injected in area of higher density 22 on carbamide particle surfaces, dried and separated and granulated in gas flow.

EFFECT: dust-free granules, good flowability, soft surface.

16 cl, 4 ex, 1 dwg

FIELD: machine building.

SUBSTANCE: installation for production of granulated products consists of vertical cylinder case, of gas distributing grid, of grid of boiling layer, of vertical gas supplying branch coaxially installed in this grid, of branch supplying air under grid, of sprayer for sputtering pulp or melt, of branches for supply of disperse material, of branch for granules unloading and of axial gas withdrawing branch. Also, the installation includes coaxial truncated cones, the internal of which is secured on the vertical gas supplying branch and grid of boiling layer, while the external one is attached to the grid of the boiling layer and cylinder case. In an upper part of the installation there is installed a separation zone consisting of three parts: two conic ones and one - cylinder; a stop is installed inside the separating zone; the stop corresponds to two cones; the upper cone has bigger height, while the lower one has lower height; the bases of cones are interconnected.

EFFECT: intensified process of drying, reduced dust carry over, and upgraded quality of product.

4 dwg

FIELD: technological processes.

SUBSTANCE: invention relates to the field of chemical technology and may be used to produce granulated sodium arsenite in processing of reaction mass produced at the stage of alkaline hydrolysis of lewisite. Liquid reaction mass is exposed to continuous convective spraying drying in fluidised bed. Process is carried out at the temperature of layer 70÷150°C and at underpressure of 10÷200 mbar, and nitrogen is used as fluidised and spraying agent.

EFFECT: invention provides for hardware and structurally simple, technologically and ecologically safe process applicable for large-capacity production of granulated sodium arsenite suitable for long-term storage.

3 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to device (10) intended for processing powder materials that incorporates work chamber (16) to process material therein. Device bottom (18) is formed by several overlapping circular guide plates (22-24) arranged one above the other. Circular slots (25, 26) formed there between allow work air to flow there through. At the center of said bottom (18) there is circular-slot-like nozzle (30) with its sprayer can spray fluid in the form of flat jet (44), approximately, parallel to bottom plane.

EFFECT: optimum transfer of powder material particles and material processing.

9 cl, 2 dwg

FIELD: production processes.

SUBSTANCE: invention refers to method of substance granulation in fluidised layer and granulator for its implementation. Method consists in the following: by means of fluidising air fluidised layer of granules of granulated substance which is supplied to fluidised layer in the form of inoculating seeds is formed and substance or liquid for granules growing are continuously supplied to fluidised layer. Fluidising air flow is divided into many flows which are supplied to various zones of fluidised layer with different rate within limits from minimum in first zone, enough for maintaining fluidised layer, to maximum in second zone, required for formation of circular motion, actually, eddy motion of granules of granulated substance in fluidised layer and its maintaining around horizontal axis.

EFFECT: method of granulation in fluidised layer and granulator for its implementation (versions) is described.

10 cl, 6 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to production of granular calcium chloride, which can be used in communal and road facilities. The method of producing granular calcium chloride involves preparation of a concentrated solution of calcium chloride from evaporated clarified still waste liquid from ammonia-soda production and subsequent dehydration and crystallisation. Non-ionic surfactant is added to the clarified still waste liquid and then evaporated to concentration of calcium chloride of 35-45%, after which it is taken for dehydration and crystallisation in a boiling-spouting drier-granulator. The spouting bed in the drier-granulator is created by a stream of furnace gases, fed through a central inlet at a rate of 50-55 m/s at temperature 700-750°C, and the boiling bed is created by an air stream at temperature 20-60°C, which is fed at a rate of 3-5 m/s.

EFFECT: intensification of the drying process, recycling still waste liquid, obtaining granular calcium chloride.

6 cl, 1 dwg, 1 tbl

FIELD: food industry.

SUBSTANCE: invention relates to food industry. According to the proposed method, a granulation mixture is prepared; for this purpose, a solution of sodium alginate and a thermotropic polysaccharide is prepared based on a liquid food product whereto a marginally soluble calcium salt is added. Resultant is a granulation mixture represented by a suspension of the calcium salt in the polysaccharides solution that is extruded into the forming medium at a temperature exceeding that of the thermotropic polysaccharide gelatination. The forming medium is represented by a solution based on soluble calcium salts. After extrusion, primary granule shells are formed that are relocated from the forming medium into the affixing medium which results in formed grounds generation.

EFFECT: proposed method enables production of a granulated food product from liquid food products such as juice, puree, kvass, wine, cider, balsams, flower infusions and cocktails.

5 cl, 1 tbl, 14 ex

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