Method of producing moisture-resistant composite fuel from peat
SUBSTANCE: invention relates to a method of producing a solid composite fuel from peat, which includes heat treatment of peat at 200-500°C without air access, mixing binder with a crushed carbonaceous residue, moulding a briquette from the obtained mixture and drying, wherein the pyrolysis condensate obtained during heat treatment is separated into a pyrolysis resin and tar water by filtering; the binder is obtained dissolving dextrin in the tar water in ratio of 1:(5-25), and the briquette made from the carbonaceous residue and binder is dried at 20-105°C and left to cool to room temperature, followed by deposition of filtered pyrolysis resin on the surface of the briquette to obtain composite fuel, which is dried at 20-105°C and held at room temperature for 7-14 days.
EFFECT: obtaining moisture-resistant solid composite fuel.
SUBSTANCE: invention relates to briquetted solid fuel, which contains activated charcoal screenings and ballistit powder wastes which do not contain heavy metal salts and other environmentally hazardous components, ground to particle size of 0.5-1.0 mm, and polyacrylamide as binder, with the following ratio of components, wt %: activated charcoal screenings - 75…86, ballistit powder wastes - 10…20, polyacrylamide - 4…5. The invention enables to comprehensively solve the problem of the environment, saving energy resources and recycling potentially hazardous high-energy substances.
EFFECT: solid fuel has higher flammability, low ash content and high calorific capacity.
SUBSTANCE: invention relates to the technology of briquetting carbonaceous fuel, and can be used in metallurgy and other industries. The method of briquetting fine coke grains involves making a briquette from fine coke fractions and depositing a protective coating on the briquette, where the said briquette with a defined shape, made using various methods, is placed on charplets in a snap flask, into which molten blast-furnace or steel slag is fed through a sprue channel, cooled and a briquette is taken out, coated with a layer of slag which is porous, has high mechanical strength and heat resistance.
EFFECT: invention increases strength and heat resistance of briquetted fine coke, and also increases efficiency of using recycled materials.
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
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
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: 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
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: 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
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: 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.
SUBSTANCE: invention describes fuel briquettes, which contain combustible binding agent, thickener - coal dust and filler, containing mixture of oil-slime and coil-tar oil in ratio 1:(0.6-0.8) as combustible binding agent, husk of oil-bearing crop seeds as filler and additionally contain hardener - hydrofuse and waste from process of deodorisation of vegetable oils in ratio 1: (0.1-0.5) with the following weight ratio of components: combustible binding agent 40-50; thickener 30-40; hardener 2-4; filler to 100.
EFFECT: obtaining high-quality fuel briquettes, which extend assortment of their composition, as well as utilisation of wastes from oil-processing, production of vegetable oils and coal.
10 ex, 2 tbl
FIELD: process engineering.
SUBSTANCE: invention may be used in by-product coke industry. Proposed method comprises batching, sorting, crushing, drying and mixing of coals. Prior to final crushing, coal charge is sized to separate fraction smaller than or equal to 6 mm and the remaining fraction of the charge is mixed with aforesaid fraction and dried to 4-6% of residual moisture content. Dusty fraction equal to or smaller than 0.5 mm is separated in drier and briquetted. Briquettes are mixed with dried charge and transferred to coke side.
EFFECT: dense coal load, higher efficiency of coking, higher yield of better CSR, CRI indices and between mechanical strength M40.
2 dwg, 1 tbl