Fuel element obtaining method
FIELD: power industry.
SUBSTANCE: wood dust is mixed in ratio of 1:1 as to volume with liquid manure of cattle stock with natural moisture content of 80-90%. Then, the obtained mixture is formed and subject to drying in natural conditions.
EFFECT: simplifying the technological process, excluding energy consumption during preparation of components, and calorific capacity and mechanical strength of fuel elements meets high requirements.
2 tbl, 3 ex
The present invention relates to a process for the manufacture of fuel elements from its own renewable resources, in particular to a method for the production of fuel elements from sawdust, which can be used for heating outbuildings on farms cattle (cattle) and in the everyday life of the rural population, that is, in the agriculture of the country. There is a method of producing fuel briquettes . According to this author's testimony, the method includes the operation of mixing the dried mixture of powdered solid fuel and a binder on the basis of waste oil production - oil sludge and/or waste engine oil with additional additives in certain % ratios, namely, in % by weight of briquetted mixture:
|Binding: slime and other||10-32|
|The crushed solid fuel from a group:|
|sawdust, peat and other||100|
This mixture then is subjected to briquetting and drying at a temperature less than 300°C.
In terms of farms and way of life of the rural population to meet the needs of the fuel at the expense of their own vozobnovljaet who's resources known method unsuitable due to its complexity (many components, difficulty maintaining their mass % ratio), as well as a significant cost of thermal energy as in the preparation of the starting components, and in the process of drying of the briquettes.
In addition, a well-known composition for wood briquettes , including shredded wood waste sawdust or shavings and animal excrement, characterized in that it contains animal manure - manure with water content 50-66% when the ratio of components, wt.%:
|Sawdust or shavings||50-80|
|The manure with water content 50-66%||Rest|
In this case, the use of energy-intensive manufacturing operation of raising to the required dimensions of sawdust and chips by grinding. In addition, apply the manure in their (1-6 days) with a water content in the range of 50-66% or stale manure, which is mixed with hot water and bring the contents in manure to 50-66%. It is known that the moisture content of manure varies between 70-95%of the author's evidence is not clear how they get the humidity of this component to 50-66%, according to the formula of the copyright certificate . These limitations, first, complicate the process of preparation of the components, and in the case of stale manure Tr the need for additional heat energy for hot water preparation, used for finishing manure to the desired moisture content.
The purpose of the present invention for a method:
- simplify the process by replacing the weight ratios of components used volume as easier to implement, due to the use of bespattering manure, with a humidity of 80-90%, and sawdust that does not require additional preparation to mixing;
excluding process energy training components for grinding, drying and conveying the manure to the required moisture content, as well as in the briquetting process, and drying of the briquettes (as it should be according to the technology in the above methods) [1, 2].
In the proposed method as a binder mixed with sawdust is used bespostavochnyj manure (semi-liquid or soluble, consisting of feces and urine), humidity is 80-90% (this is the novelty of the decision), which is obtained when the content of cattle without litter, for example, on slotted floors , and this manure is called bespostavochnymi. The concept bespostavochnyj manure is used when describing the technologies associated with the production of fertilizers .
Example: sawdust thoroughly mixed with bespostavochnymi manure (cattle), as a binder, natural humidity of 80-90% in the ratio of 1:1 by volume, get a doughy mass,which at room temperature is formed under a pressure of 0.02 to 0.04 MPa and dried in natural conditions (in air).
The proposed and reference chemical compositions are presented in table 1.
Table 2 contains the results of laboratory tests the strength and calorific value of the samples of the fuel elements produced by the proposed method and the control sample briquettes, made known method .
|Components||The content of the component|
|Volume % of||Weight % in the composition|
|Wood waste - sawdust||50||50||50||50*|
|Manure moisture 50-66%||-||-||-||50*|
|Note. Part 4 - control, content, wt.% [Avts 1713923 (sawdust - 50%of the manure with water content 50-66% - 50%, i.e. part 1)].|
|Composition||The characteristics of the fuel cell|
|the calorific value, kcal/kg||the strength of the sample, kgf/cm2||crochemore, %||use hot water when finishing to the required humidity|
|4||4100||-||1,1||Yes (in the case of stale manure)|
Thermal performance of fuel cells, obtained by the proposed method: the calorific value and mechanical strength meet the high requirements. In particular, the calorific value of the fuel elements is approaching calorific value of some coal . Excluded costs of energy in the preparation of the starting components (grinding the dried mixture of solid fuels and binders) . Work on the preparation of a mixture with a volume composition easier than cooking mixture. In the proposed method is applied bespostavochnyj manure with his usual humidity of 80-90% , which does not require any additional expenditure of energy to use.
Due to the higher moisture content of the applied manure processitemevent components to obtain a doughy mass in the proposed method, in comparison with the known method  is easier.
Sources of information
1. Avts RU # 2130047 C1, 6 C10L 5/02, 5/44, 5/12.
2. Avts RU # 1713923 A1, C10L 5/44, 5/42.
3. Aponeo and other Reference hygiene of farm animals. Moscow, Rosselchozizdat. - 1975, p.151 (1-20 row from the top) str (15-18 line from the bottom).
4. Denisov, V. A., Kolesnikova so-CALLED. Promising technology for the production of complex organic fertilizers on the basis of bespattering manure // Sat."Scientific and technical problems of mechanization and automation of livestock", Vol.8, part 1, str. 1999.
5. Kiselev N.A. Boiler installation. Moscow, Higher school", 1975, p.19.
Method for the production of fuel elements from sawdust, characterized in that the binder in the ratio of 1:1 by volume with sawdust used bespostavochnyj the cattle manure (cattle) natural humidity of 80-90% with the further forming of the mixture and drying of elements in natural conditions.
SUBSTANCE: in method, soil is prepared to grow Galega orientalis: acid soils are limed, peat and manure compost is added. Ploughing is carried out, seeds are treated before sowing with the aqueous solution of rizotorfin in amount of 40÷45 g - on a dry basis per 1 kg of seeds; the aqueous solution of boric acid in amount of 12÷20 g per 1 kg of seeds; the aqueous solution of ammonia molybdate in amount of 6÷8 g per 1 kg of seeds. The sowing rate is 25÷27 kg/ha. Vegetating plants are sprayed with the aqueous solution of boric acid in amount of 800÷1000 g per 1 ha of soil in the phase of 5÷7 leaves. In the beginning of growth and after the first hay crop, the plants are sprayed with liquid humic fertiliser from biohumus in amount of 0.10÷0.15 g per 1 ha of soil. At the 5th, 10th and 15th years of life the crops are treated with a disk harrow and are further sprayed with liquid humic fertiliser from biohumus in amount of 0.08÷0.10 g per 1 ha of soil. Green mass is cut in budding phase and is distributed into rolls by forage harvesters. Then the green mass is cured in rolls for 2÷3 days with drying to residual moisture of 60÷65%, the green mass is ground by forage harvesters until the fibre length makes 1÷3 cm. The ground green mass is dried in the drying drum at the temperature of 100÷110°C, granulated, granules are cured for 48÷54 hours until residual moisture makes 9÷12% and packed.
EFFECT: method makes it possible to produce ecologically clean biofuel.
4 dwg, 3 tbl, 1 ex
SUBSTANCE: method involves dropwise addition of diesel fuel to a pelleting press while pressing crushed wood wastes. The method of producing biofuel from wood wastes involves crushing, drying, mixing components and subsequent pressing, wherein the binder and component which reduces the load on the press matrix owing to increase in the slip coefficient between the material and cavities of the matrix is diesel fuel which is added in the following ratio, wt %: wood wastes 99.0-99.9; diesel fuel 0.1-1.
EFFECT: higher cost-effectiveness of the technological process without loss of quality characteristics of the obtained biofuel, improved water-repellent properties and higher combustion heat of the biofuel, lower ash content and high wear resistance of the press matrix.
SUBSTANCE: moulded fuel contains a dry mixture of wood wastes and wastes from starch production in ratio of 3:1 and lipid-containing animal wastes in the following ratio of components, wt %: said lipid-containing wastes 30-60; mixture of ground solid fuel and starch production wastes - the rest. The lipid-containing wastes are wastes from fish processing, meat processing and bird processing. The method of producing moulded fuel involves selection of components, grinding and mixing the ground solid fuel, moulding the mixture, wherein before grinding, the solid components are separated on vibrating screens into two fractions with particle size less than 8 mm and greater than 8 mm and the latter is taken for grinding. Each fraction is then taken for drying and the components are dried to moisture of 12-16%. The components are then mixed and the mixture is then moulded in an extruder at pressure of 5-10 MPa and temperature of 140-200°C. The ready fuel is packed into sacks.
EFFECT: invention enables recycling and utilisation of wastes from food production and improves physical and mechanical properties of the fuel blocks.
5 cl, 3 ex, 1 tbl
FIELD: process engineering.
SUBSTANCE: invention relates to production of fuel briquettes from carbon-containing fine-fraction materials. Proposed method comprises preliminary mixing of melasses and lime-containing component to get modified binder to be mixed with fine-fraction carbon-containing mineral material and forming briquettes with the following ratio of components, % by weight: melasses 1.8-7.0, lime-containing component (in terms of Ca(OH)2) 0.8-3.2, fine-fraction carbon-containing mineral material making the rest. Ratio between melasses and carbon-containing component (in terms of Ca(OH)2) makes 1:(0.25-0.75), respectively. In compliance with the other version, proposed method comprises preliminary mixing of melasses and lime-containing component to get modified binder to be mixed with fine-fraction carbon-containing mineral material, fine-fraction vegetable materisl and forming briquettes with the following ratio of components, % by weight: melasses 3.0-9.0, lime-containing component (in terms of Ca(OH)2) 1.2-4.5, fine-fraction carbon-containing vegetable material 5.0-20.0, and fine-fraction carbon-containing mineral material making the rest. Ratio between melasses and carbon-containing component (in terms of Ca(OH)2) makes 1:(0.25-0.75), respectively.
EFFECT: improved ecological properties, simplified production process.
11 cl, 2 ex, 2 tbl
SUBSTANCE: method of producing fuel granules from organic fibrous material includes breakage of organic fibrous material to 0.25-0.15 mm, moistening and heating are combined and put under the steam treatment heated to 130-180°C under the pressure from 4 to 5 atm, and the compaction of the material obtained is made in the matrixes with the proportion of diametre and length pf the channel 7:78-80.
EFFECT: enlargement of the range of the solid-propellant thermal sources, utilisation of the waste products of the millet and improvement of the environment conditions.
2 cl, 2 ex
FIELD: mechanical engineering.
SUBSTANCE: method may be used in briquette pressing technology to produce vegetable oil and oil cakes as briquettes. It is useful for wood and wood-working industry waste treatment to produce qualitative and environmentally friendly fuel briquettes free from binding substances. They can be used for treating oil cakes and disperse wastes in coil industry. Initially, milling zone is consequently formed in extrusion channel between zones of initial raw material loading and tapered pressing screw. Then pre-pressing zone and heating zones are generated due to internal friction forces, where excess moisture is squeezed and removed from extrusion channel through its walls, which are permeable for steam and liquid. The required commercial parametres for briquettes made from each type of raw materials are chosen based on combination of screw rotation speed, variable amounts of supplied raw materials, variable clearances between internal tapered surface of extrusion channel and external tapered surfaces of pre-pressing and heating screw, and external tapered surfaces of tapered pressing screw.
EFFECT: method allows for producing qualitative briquettes from different types of raw materials.
FIELD: process engineering.
SUBSTANCE: proposed method relates to processing of loose wastes formed in wood processing and can be used for producing ecologically pure buofuels for industrial and communal services. Proposed method comprises grinding the material, processing it by superheated steam at 300°C in filtration conditions, and subsequent pressing. Proposed method comprises measuring the finished product temperature and moisture content at the press unit outlet, comparing measurement results with rated magnitudes preset at microcontroller. Control signals from the latter are sent to actuating mechanisms to vary the rate of material feed in press die temperature control circuit, and to actuating mechanism that allows feeding superheated steam into the mixer included into moisture content control circuit.
EFFECT: reduced inflammability, optimum moisture content of finished products.
1 ex, 1 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to the method of producing fuel granules from biological materials, primarily, from wood shaving, wood etc., differing in that the material is fed to drying stage (1) for it to be dried to relative moisture content of 40-65% to 30-45% by weight. Then the material is fed from drying stage (1), via, possible, intermediate stage of storage (2) to reactor stage (3, 3') for material to be treated at higher pressure and heating to 200 to 300°C with the help of steam. Material is cured in the reactor at reached temperature for time sufficient for softening of the material. Pressure at aforesaid reactor stage is reduced in at least two stages. Note here that aforesaid first pressure reduction stage is intended for separating the material into fibers and extracting lignine, while the second pressure reduction stage is undertaken to feed the material from the reactor stage to that of additional drying, possibly, via intermediate stage of storage. Now the material is pelletised.
EFFECT: ruling out granule destruction with no additives and at lower power consumption.
4 cl, 2 dwg
FIELD: wood processing.
SUBSTANCE: production method of wood granulae is based on use of furnace dead matter from low-grade wood as raw materials. The method involves pushing raw materials through an extrusion-type, perforated matrix in form of a plate with three-step shaped openings, in which there is division of raw materials into different parts, compaction and shaping of material in form of wood pellets. Whole timber is used as raw material, extruded under pressure of a hydraulic press. The openings of the plate are at peaks of regular triangles. Division of wood takes place at different hexagons using a system of parabolic teeth, the peaks of which at the corners of hexagons on the working surface of the matrix. The wood is compacted in conical channels with taper angle of 20°, shaping - by pushing wood through cylindrical openings.
EFFECT: method of making wood granulae (pellets) allows for doing away with laborious and expensive operations for preparation, chopping and drying raw materials, which significantly lowers production costs.
SUBSTANCE: invention concerns solidified biomass applied as fuel alternative to coal coke and as material for various purposes, and methods of biomass obtainment. Solidified biomass applicable as fuel alternative to coal coke and as carbon material for various purposes includes semicarbonised solid substance or pre-semicarbonised sulid substance with apparent density of 1.2-1.38, obtained by processing involving heated compression of biomass obtained by photosynthesis, in almost completely sealed space, resulting in thermal decomposition of hemicellulose comprising one of the main source biomass components, that is lignin, cellulose and hemicellulose, and low-temperature reaction of cellulose and lignin with preservation of their frames, and obtainment of indicated pre-semicarbonised solid substance or semicarbonised solid substance with maximum compression strength of 60-200 MPa and calorific power of 18-23 MJ/kg. Carbonised solidified biomass is obtained by heating of indicated solidified biomass in open air. Solidified biomass can also be obtained out of mix of source biomass obtained by photosynthesis, and metal particles or carbonised solid substance including biomass as main component, or cinders of material including biomass regenerated to cinders as main material. Method of solidified biomass obtainment involves: reduction of source biomass obtained by photosynthesis; loading reduced source biomass into chamber; insertion of mobile pressure-generating device into empty part of chamber loaded with reduced source biomass, so that a pressure could be applied to the source biomass by the pressure-generating device; compression of reduced source biomass by application of 8-25 MPa pressure to material by mobile pressure-generating device positioned in the chamber, with material heating to 115-230°C, so that vapour and evaporated components obtained from source biomass by heating and pressing are collected inside the chamber by the pressure-generating device positioned in the chamber; thermal decomposition of hemicellulose comprising one of main source biomass components, i.e. lignin, cellulose and hemicellulose, and low temperature reaction between cellulose and lignin with preservation of their frames and obtainment of semicarbonised solid substance or pre-semisubstance solid substance; cooling of the semicarbonised solid substance or pre-semisubstance solid substance by maintaining pressure of compression process to obtain cooled solid substance; discharge and drying of the cooled solid substance. Method of obtaining carbonised solidified biomass out of indicated solidified biomass involves: heating of indicated solidified biomass in open air; carbonisation of the solidified biomass by heating temperature and air pressure maintenance for definite time period to obtain carbonised solidified biomass; cooling of the carbonised solidified biomass by definite pressure maintenance to obtain cooled carbonised solidified biomass; discharge and drying of the cooled carbonised solidified biomass.
EFFECT: obtaining fuel applicable as alternative to coal coke out of biomass, with high durability and calorific power.
14 cl, 10 ex, 5 dwg
FIELD: solid fuels.
SUBSTANCE: invention relates to fabrication of hydrocarbon moldings in the form of briquettes or granules. Which can be used as natural solid fuel substitutes for municipal and industrial needs but also as fertilizers and/or soil structure improvers. Carbon-containing moldings contain (i) ground peat and/or lignin (5-50%), (ii) wood-vegetable components in the form of sawdust and/or wood chips, and/or bark, and/or straw, and/or chaff, and/or seed shells, and/or oilcake, and/or plant stems and leaves, and/or animal components in the form of poultry dung and/or manure (1-10%), and (iii) binder in the form of burnt lime, sodium hydroxide, or potassium hydroxide (balancing amount). Method of fabrication comprises dispensing, mixing, grinding, and activation of peat and/or lignin with binder, after which is added above-indicated wood-vegetable and/or animal components and resulting mixture is remixed. Final mixture is converted into moldings, which are then compacted by lying during 2 to 30 h.
EFFECT: extended consumer's market of low-cost and environmentally safe fuel product, enabled utilization of wide range of energy organic wastes, and improved fertility of soil.
6 cl, 9 ex
FIELD: production of coal-containing fuel; preparation of briquettes (granules) for furnace units of minor and medium heat power engineering.
SUBSTANCE: fuel (briquette, granule) contains 47.5-52.5% of culm, 28.5-31.5% of coal screenings and 19-21% of sawdust. Fuel thus produced is cheaper than similar fuels due to utilization of coal output wastes and wood-working process wastes without binding materials; fuel possesses high heat of combustion of coal; slag forming is excluded; finely-dispersed ash may be used as mineral fertilizer.
EFFECT: enhanced efficiency.
FIELD: fuel briquettes for domestic and industrial use in boiler houses and railway car furnaces.
SUBSTANCE: proposed fuel composition contains 20-65% of waste of leather production process; 10-30% of hydrocarbon sludge; 0-20% of wood waste; the remainder being peat. Hydrocarbon sludge contains up to 200 g/kg of petroleum products. Waste of leather production process is used in form of leather dust, leather cuttings and leather chips. Fuel composition may also include waste of wood-pulp and paper industry, weaving and sewing processes in the amount of up to 10 mass-%. Proposed fuel enhances utilization of sludge of car repair plants, engineering plants and other works containing up to 200 g/kg of petroleum products.
EFFECT: enhanced efficiency.
FIELD: heat-and-power industry; wood-working industry; petroleum industry: other industries; methods of production of the fuel briquette.
SUBSTANCE: the invention is pertaining to the method of production of the fuel briquettes, which may be used as the fuel in the municipal housekeeping, in the residential buildings boiler rooms in the capacity of the kindling material for ignition, and also in the capacity of the heat insulating material. The method of production of the fuel briquette provides for injection molding of the filler material in the form of the waste of the woodworking industry mixed with petroleum. In the capacity of the filler material use 80-85 % of the salvage sawdust saturated with petroleum at purification of the oil-polluted waste waters, in which add 15-20 % of wood meal, intermix and mold under pressure of 4.5 - 5 MPa. The invention allows to produce the briquettes of the higher thermal value, the smaller ash content, and also allows to recycle the wastes of the industrial productions and to improve the ecological state of the environment.
EFFECT: the invention ensures production of the briquettes of the higher thermal value, the smaller ash content, and also to recycle the wastes of the industrial productions and to improve the ecological state of the environment.
FIELD: manufacture of fuel elements from wood dust produced at wood-working houses.
SUBSTANCE: wood dust 17 and binder are fed by means of charging device 15 and device 18 for feeding of binder into space 16 between contours 1 and 2 made from steel whole stretched or plated belt. Cylindrical drive brushes are positioned in upper parts of both contours. Mass produced is mixed and compacted in space 16 upon actuation of drive units 5, 6 and movement in downward direction of adjacent runs of contours 1 and 2. Pressure of compressed mass is perceived by converging runs of both contours and by straight roller supports 10 and 11 mounted on columns 3 and 4. Simultaneously with displacement of mass in downward direction, said mass is cut-through by acute edges of partitions 14 when partitions 14 of contour 1 approach run of contour 2. On approaching to lower units 5 and 6, individual fuel elements 20 formed as bars-logs are produced from said mass. Fuel elements are discharged onto conveyor 19.
EFFECT: increased efficiency and simplified construction of complex, and reduced costs for manufacture of said complex.
4 cl, 3 dwg
SUBSTANCE: invention concerns obtaining of moulded fuel, particularly of carbonaceous mouldings in the briquette or pellet form made of organic carbonaceous waste. Additionally, carbonaceous mouldings can be used in agriculture as fertiliser and/or soil structure-forming agent. The process involves proportioning, activation mixing of the components, activated component moulding under the pressure of 120 MPa to obtain carbonaceous mouldings. Organic carbonaceous waste includes lignine and/or sewage treatment sediments, and/or animal manure, and/or bird droppings. The components or their mix are dried to 40% dampness before moulding, either by direct contact with drying medium containing up to 14 mass % of oxygen with the components or their mix; or without direct contact with the drying medium heated up to 500°C.
EFFECT: fast adhesion of organic carbonaceous component particles in mouldings and higher moulding solidity due to the optimal component dampness and moulding pressure.
4 cl, 1 tbl, 2 ex
SUBSTANCE: invention pertains to the production of non-toxic solid fuel briquettes from production wastes and can be used in various industries. The method allows for obtaining solid fuel briquettes, containing in mass.%: chips of clear wood - 25-30, tobacco dust wastes - 10-15, grain husk - 10-15, organic binding substance - 40-55, with uniform density in the whole volume and improves their calorific capacity. The method involves grinding the organic material to a fraction in the range of 0.1-5 mm, drying to moisture of 9-14%, mixing the components of the mixture with the molten organic binding substance and subsequent pressing into briquettes at specific pressure in the range of 30.0-40.0 MPa. The device consists of a case with a receiving funnel, transmission shaft, joined to a hub, with an angle hole, in which a spindle is freely fitted, on the lower part of which a former block is mounted inclined to the axis of the shaft, with a cone-shaped packing surface. The former block is made with grooves for supplying the reinforcement material under the packing surface of the working organ. In the lower part of the case there are cut plates and a matrix, with calibrated openings, the dimensions of which correspond to the cross sectional dimensions of the briquettes. On the cone-shaped surface of the forming block there are pressure clutches, with dimensions corresponding to the dimensions of the calibrated openings of the matrix, into which the enter during spherical motion of the forming block. The transmission shaft is fitted with provision for vertical displacement. The forming block is made with provision for pressing at specific pressure in the 30.0-40.0 MPa range.
EFFECT: increased productivity of the whole cycle of making briquettes.
3 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: working elements of complex are made in the form of two flexible circuits with solid surfaces from rubberized tape, infinitely closed on drive and tension units installed on stands. Both circuits are installed in vertical plane. At that stand of the first circuit is oriented vertically, and stand of the second circuit - at sharp angle to stand of the first circuit. Both circuits are arranged as converging downwards, and branches of both circuits facing each other are installed with possibility of their resting on flat friction supports fixed on stands with coating of anti-friction material relative to material of circuits tape. On the sides tapes of circuits are limited with vertical walls. The first vertically oriented circuit is arranged with baffle partitions of triangular cross section installed normally to its surface and fixed in it with the same pitch. Sharp edges of partitions face the second circuit. Above upper tension units, loading device is installed with the possibility of continuous supply of saw dust into space between circuits. Device for continuous supply of liquid binder is also installed there for supply to the same space. Drive unit of the first vertically oriented circuit is installed below drive unit of the second slating circuit by at least one step of baffle partitions installation in the first circuit. Vertically oriented plate is installed on the side of the second circuit on the frame with the possibility of displacement relative to it and side walls in vertical plane, fixation on frame and interaction with its upper edge with external surface of the second circuit tape. Conveyor is installed under drive units with the possibility of molded raw fuel elements reception and transportation into drying department. Distance between branched of both circuits facing each other in area of lower units installation and distance between surface of the first circuit tape in area where it envelopes drive unit and plate surface is accepted as equal to height of partitions. Stands of both circuits in their upper part are connected to each other by screw couplings. Speeds of the first and second circuit tapes are accepted as different.
EFFECT: simplification and cheapening of complex structure with provision of its high efficiency.
5 cl, 1 dwg
SUBSTANCE: while carriage 32 travel relative to the frame 24 guides 33 frames 24, required angle is regulated between racks 3, 4 and circuits 1 and 2. There are connected drives 5 and 6, sawdust 22 charging device 20 and liquid binder feeder 23. Sawdust and liquid binder are supplied continuously to the space 21 between circuits 1 and 2 wood sawdust and the liquid binding. Simultaneously there is connected crank drive 29 which by rod 28 makes the rack 4 and the second circuit 2 to vibrate in a vertical plane. In the intercircuit space 25, sawdust 22 and liquid binder are mixed, while formed mass is pressed by moving adjacent branches of circuits 1 and 2.
EFFECT: simplified and cheaper utilisation of equipment, higher performance reliability and quality of moulded fuel cells.
2 cl, 4 dwg
FIELD: wood industry.
SUBSTANCE: invention can be used for production of fuel elements from composite based production waste. A required angle α between posts 3 and 4, and cycles 1 and 2 is set by moving a carriage against guides 26 of frame 18. Drive units 5 and 6, loading device 14 for sawdust 16 supply and liquid binder feeding device 17 are activated. Sawdust 16 are mixed with the liquid binder in intercycle space and the mixture thus obtained is packed by means of downward movement of the adjacent sides of cycles 1 and 2. When the device is running, pressure of the mixture being compressed is taken up by convergent belt sides of both cycles 1 and 2 and by flat friction bearings 9 10 and 1 fixed to posts 3 and 4. Simultaneously with the downward movement of the mixture, the mixture is cut by sharp edges of transverse walls 13 while cycle side 2 is gradually approaching walls 13 of cycle 1.
EFFECT: invention allows to simplify the equipment being used and to make it cheaper, to increase performance reliability and quality of the fuel cells being formed.
4 cl, 4 dwg