Method of producing fuel briquettes
(57) Abstract:Usage: fuel household and technological applications for coking, hydrolytic production. The inventive method includes machining powdered carbonaceous material in a rotary disintegrator at a speed of rotation of the working bodies (15-18) 103min-1for 2-7 seconds and then pressing briquettes additionally, the carbonaceous material used brown coal, lignin, or sawdust. 1 C.p. f-crystals, 2 tab. The invention relates to the field of processing of coal, particularly to a method of producing fuel briquettes, and can be used to produce fuel household and technological purposes, such as, for coking, hydrolytic production, etc.The known method for producing briquettes by briquetting the mixture, consisting of brown coal particle size distribution 0-1 mm to about 50% 1-2 mm 40-45% and 2-4 mm 5-10% at a pressure of 100 MPa and a temperature of 60oC 
The disadvantage of this method is the necessity of heating the mixture prior to extrusion, increased energy consumption for briquetting as zadergivanija internally consumed in the destruction of large grains.Closest to the proposed to the technical essence and the achieved result is a method of producing briquettes from brown coal, including its processing in a rotary disintegrator at a speed of 20-40 min-1within 30 seconds, followed by pressing of the mass in the extruder and drying 
The disadvantage of this method is the increased energy consumption for briquetting, because when the specified machining coal content of coarse grains is still great and briquetting must be carried out in the extruder.The aim of the invention is to reduce the consumption of electricity for briquetting by reducing processing time and increasing the degree of grinding of the material, reduces the energy spent on fragile and elastic deformation of the material.This is achieved by the method for producing fuel briquettes, including machining of carbon-containing material, such as lignin, brown coal or sawdust in a rotary disintegrator at a speed of rotation of the working bodies (15-18)103min-1for 2-7 seconds and then pressing briquettes.The difference from the prototype is that m is 2-7 seconds.When processing in the cage occurs dehydration and grinding the coal to a particle size less than 0.2 mm and change spectrochemical characteristics, which indicates the transformation of the chemical structure of coal.When machining hydrolytic lignin is dehydrating and grinding to a particle size of 0-0,5 mm and, as shown by petrographic studies, the release of cells crinita from decayed cells, formed from sheet prangley tissues.Sawdust during his stay in the cage dehydrate and collapse on the individual fiber lengths of up to 3 mm, which allows the briquetting get a more durable frame briquette, regardless of what species of wood sawdust obtained.Briquetting is carried out at a temperature of 22oC.Experimental briquettes are disks with a diameter of 50 mm, height: coal 12 mm, from hydrolytic lignin 14 mm of sawdust 20 mmThe method is as follows. Example 1. Brown coal (grade B1 section "Morozov", fractional composition of 0-10 mm, the characteristics of which are given in table. 1, is subjected to mechanical activation in the cage is in the laboratory as follows. The coal field of the cage with a mass of 40 grams compressed at 50-ton hydraulic press in the mold of 50 mm at a specific pressure of 100 MPa.These briquettes are experiencing bending and abrasion in the drum.Testing of briquettes bending carry on the lever apparatus of Domke. The abrasion resistance is installed in a standard drum (GOST-21289-75). The moisture content of the briquettes is equal to the moisture content of the pressed material.Conditions of carrying out the pressing process and quality data briquettes are presented in table. 2. As follows from the obtained data (table. 2), the briquettes on the mechanical strength correspond to GOST 21289-75.Examples 2, 3 (known way). Brown coal (grade B1 section "Morozov" size 0-4 mm bitteroot at a pressure of 100 MPa. Conditions of carrying out the pressing process and quality data briquettes are given in table. 2.As follows from the presented data (table. 2), to obtain a mechanically stable briquettes from the coal in accordance with specifications on briquettes GOST 7299-84 need coal before pressing heated to 55oC, however, these figures are below the requirements of GOST 21289-75.Example 4. Brown coal (grade B1 section pathologic what their bodies 15103min-1within 2 seconds, and then bitteroot at a pressure of 100 MPa. Conditions of carrying out the pressing process and quality data briquettes are given in table. 2.As follows from the presented data (table. 2), the briquettes on the mechanical strength meet the requirements of GOST 21289-75.Example 5. Brown coal (grade B1 section "Morozov" fractional composition of 0-10 mm is subjected to mechanical activation in the cage when the rotational speed of the working bodies 18103min-1within 6 seconds, and then bitteroot at a pressure of 100 MPa. Conditions of carrying out the pressing process and quality data briquettes are given in table. 2. As follows from the obtained data (table. 2). mechanical activation of coal at the given frequency of rotation of the working bodies of the cage allows you to increase the mechanical strength of the briquettes.Examples 6-8. Lignin fraction composition 0-10 mm, meeting the requirements of THE 64-11-05-87 with humidity after drying 18% is subjected to mechanical activation in the cage when the rotational speed of the working bodies:
-15103min-1within 3 seconds (so 6)
-17103min-1within 5 seconds (so 7)
-18103min-1within 7 seconds (8)
Then poluchatelu are given in table. 2.As can be seen from the analysis of the data table. 2, the optimum conditions for producing briquettes from coal or lignin or sawdust is the implementation of mechanical activation of the mixture at a speed of rotation of the working bodies of the cage (15-18)103min-1and processing time 3-6 seconds.Changing the parameters of the mechanical activation of coal charge in the cage by increasing the speed of rotation of the working bodies over 18103min-1the processing time more than 6 seconds will require additional energy consumption, which is economically disadvantageous.Reducing the speed of rotation of the working bodies of the cage below 15103min-1and processing time less than 2 seconds is impossible on used equipment.Thus, the proposed method allows to obtain a mechanically stable briquettes at a much lower temperature pressing, to reduce the time for producing briquettes, to reduce overall energy costs of the process. The calorific value of briquettes Q is: for coal 7011 kcal/kg, from hydrolytic lignin 5810 kcal/kg 1. Method of producing fuel briquettes, including machining powdered carbon to materiau is carried out at a rotational speed of the working bodies (15-18) 103min-1for 2 7 C.2. The method according to p. 1, characterized in that the carbonaceous material used brown coal, lignin, or sawdust.
FIELD: manufacture of building materials.
SUBSTANCE: carbon briquettes based on ground carbon-containing starting material (peat, coals, and the like) are fabricated by mixing starting material with 30-50% of water, treating the mix on rotary cavitation apparatus in 5 to 50 operation cycles at 15 to 70°С and cavitator rotor speed 3000-12000 rpm, pouring out thus treated mix into special molds, wherein mix is dried in air flow at 15 to 100°С to form ready-to-use briquettes (after cooling, if needed).
EFFECT: simplified fabrication process and increased process efficiency.
FIELD: mining industry.
SUBSTANCE: process to manufacture purified carbon from brown coal implies treating loosened batch mixed with water in cavitation apparatus, which provides for disintegration of organic portion of carbon-containing mixture down to particles of less than 20 mcm. Then, resulting water-carbon mixture is directed to separation tank for sedimentation of mineral mass, which is regularly dumped. From the separation tank, mixture is fed to electrophoretic separation device, out of which paste-like carbon-containing mixture is extracted. Cavitation apparatus power is selected in such a way so as to obtain inorganic particles larger than the organic ones in the water-carbon mixture. Impact cavitation action is applied to continuous slurry flow, while water-carbon mixture is held in the separation tank for at least 20 sec.
EFFECT: high efficiency; production of low-ash purified carbon from brown coal.
5 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: procedure for fabrication of briquettes consists in preparation of raw materials, in loading into briquetting device, in briquetting and in briquettes drying. As carbon containing materials there is used peat and/or plant residues and/or wood wastes. Raw material is prepared in a disk extruder at temperature 70-100°C and humidity 45-60 %.
EFFECT: production of briquetted fuel from various kinds of carbon containing materials possessing high qualitative indices; reduced expenditures for production.
2 cl, 2 tbl, 1 ex
SUBSTANCE: invention relates to technology of fuel components briquetting - coal sludges, fine classes of coal, coke dust. The method of coke dust briquetting consists in production of a concentrate. The concentrate is produced by enrichment of coke dust with particle size of less than 1 mm with initial ash content of 10-16.8 wt %, and sulphur content of 0.4-0.5 wt %, by the method of oil agglomeration to ash content of 5.0-5.5 wt% and sulphur content of 0.05 wt %. The prepared concentrate and binder heated to 100-133°C - carbamide taken in the amount of 4.0-6.0% to the weight of the initial concentrate. The mixture is briquetted in steps, for this purpose at first the load of 5-6 atm is set, with a delay of 3-5 min. and further to 15 atm with a delay under the maximum load of 3-5 min.
EFFECT: production of fuel briquettes with low ash content and sulphur content, recycling of coke dust.
1 cl, 6 tbl, 3 ex
FIELD: process engineering.
SUBSTANCE: invention relates to production of fuel from compacted biomass whereat moist biomass is dried prior to compaction. Before drying, biomass is mechanically dewatered for decrease in moisture content and ground before mechanical dewatering. Note that biomass is ground to puree state, rubbed to obtain fiber and subjected to fine grinding to destruct cellular structures to biomass consistency varying from paste to fluid. Invention relates also to appliance for producing fuel from compacted biomass. Fine grinding allows better removal of water either mechanically or at preliminary dewatering.
EFFECT: decreased amount of contaminants released in combustion and boiler corrosion, higher combustion heat and ash fusion point.
11 cl, 1 dwg
FIELD: power industry.
SUBSTANCE: invention relates to compressed base for use in co-combustion power aggregates and house heating, containing first particles of biomass material selected out of a group including planting stock of soy beans, sage, planting stock of corn and sunflower, and second, carbon particles, where compressed base containing first and second particles and a linking agent (algae or wax) is resistant to fragmentation. Invention relates to a method of obtaining compressed base containing biomass material, carbon particles and algae or wax as linking agent. In addition, invention describes a total of compressed bases in container for use in co-combustion power aggregates and house heating.
EFFECT: compressed base resistant to fragmentation.
23 cl, 1 dwg, 1 tbl
FIELD: power engineering.
SUBSTANCE: invention includes mixing of ground solid fuel with a binder, briquetting of the mixture under pressure, where the ground solid fuel is coke dust with particle size of less than 1 mm, and the binder is coking sludge in the amount of 8.0-10% to the weight of coke dust, the mixture of coke dust and the binder is heated to 100°C, pressed in stages: first the load of 5-6 atm is set with a delay of 3-5 min and then up to 15 atm with a delay at the maximum load for 3-5 min, the finished fuel briquette is tempered at 250-300°C without access of air for 10-12 min. The produced briquettes may be used as fuel for combustion in domestic and industrial furnaces, and also for coking in chemical-recovery and metallurgical industry.
EFFECT: production of smokeless fuel briquettes of higher strength, improved environmental situation in coal processing regions, reduced prime cost of fuel briquettes.
2 tbl, 3 ex
SUBSTANCE: invention relates to method of recycling solid residue of tyre pyrolysis, which includes enrichment of solid fuel by method of oil agglomeration. As solid fuel used is solid carbon residue of tyre pyrolysis with initial ash content 11.40-11.66%, sulphur content 1.2 wt %, preliminarily crushed to particle coarseness 0.1 mm, with liquid fraction of pyrolysis being used as reagent for enrichment in amount 4.0-6.0% to weight of water, used for enrichment, after which granulation of obtained concentrate and application of water-resistant smell-absorbing coating from petroleum products on the surface of granules.
EFFECT: obtaining moulded fuel from solid residue of automobile tyre pyrolysis with low ash content and sulphur content.
4 tbl, 3 ex
SUBSTANCE: invention describes a fuel briquette which includes a carbonaceous component and binder.As the carbonaceous component coke dust with particle size smaller than 1 mm is used and as the binder a mixture of coking sludge with carbamide, with the following ratio of components is used, wt %: binder (a mixture of coking sludge with carbamide in ratio of 1:1) 8-10, coke dust - the balance.
EFFECT: obtaining smokeless high-strength fuel briquettes, improved environmental situation in coal processing regions and low cost of the fuel briquettes.
2 tbl, 3 ex