Fuel briquette

FIELD: chemistry.

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

 



 

Same patents:

FIELD: heating.

SUBSTANCE: invention relates to a charge containing bituminous coal and binding additives; bituminous coal contains an unburnt ash-slag mixture as a result of coal combustion in boiler houses, at thermal power plants, in domestic stoves, coal benefication wastes, and the following is used as activators: coal-tar resin, resinous wastes of coke-chemical and chemical industry, waste machine oils; aluminium powder in the amount of 1-3 vol % is used as a high-calorific additive, and lime in the amount of 13-18 vol % is used as a binding agent. The invention also relates to a manufacturing method of fuel briquettes from a charge, which involves crushing and mixing of charge components; after mixing is completed, water separation, mixture extrusion, and briquette drying and packaging is performed.

EFFECT: improvement of ecology, economical efficiency of bituminous coal processing, reduction of quantity of wastes and increase of heat amount at coal combustion.

2 cl, 1 tbl

FIELD: power engineering.

SUBSTANCE: invention includes mixing of ground solid fuel with a binder, briquetting of the mix 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 die mould is first heated to 40-50C, and briquetting of the mix under pressure is carried out under pressure in stages, for this purpose they first set load of 5-6 atm, with a delay of 3-5 min and then up to 15 atm with delay at maximum load of 3-5 min. The produced briquettes maybe used as fuel for burning in domestic and industrial furnaces, as well as for coking in chemical-recovery and metallurgical industry.

EFFECT: production of fuel briquettes of higher strength, improved environmental situation in coal processing regions, reduced prime cost of fuel briquettes.

2 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 100C, 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 250-300C 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: oil and gas industry.

SUBSTANCE: method for production of formed coke of carbon-containing material includes stages of oil semi-coke heating, pressure moulding with obtainment of green mouldings and their further cocking. Oil semi-coke is heated up to 350-400C, at that oil semi-coke with carbon-to-hydrogen atomic ratio within range of (1.3-1.7) or oil semi-coke with carbon-to-hydrogen atomic ratio more than 1.7 is used with addition of sintering additives. After the heating stage before moulding the heated oil semi-coke is hold within 10-20 s.

EFFECT: invention allows improving quality of mouldings, simplifying the method and increasing technology stability and reliability, reducing energy costs and expanding sources of raw materials.

3 cl, 2 dwg, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: method involves thermal treatment of low-grade fuel at temperature 200-500C. A pyrolysis product is obtained - low-temperature pyrolysis resin and a carbon residue. The carbon residue is crushed and mixed with low-temperature pyrolysis resin in equal parts. Briquettes are moulded from the obtained mixture. The briquettes are dried at temperature not higher than 200C. The obtained fuel briquettes are left to solidify at room temperature for one day.

EFFECT: minimising processing equipment used.

1 cl, 5 ex, 1 dwg

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to manufacture of molded fuel, in particular to fabrication of high-carbon fuel briquettes, which can be used when smelting cast iron in cupola-furnaces, when producing calcium carbide, silicon carbide, mineral fibers, and other materials. Process according to invention comprises mixing ground solid fuel with binder in amount 5-9% of the weight of ground solid fuel and briquetting mix followed by heat treatment of briquettes. Ground solid fuel is composed of coke fines with particle size 0.05-16.0 mm, 50-80%, and thermoantracite fines with particle size 0.05-6.0 mm, 20-50%. Binder is lignosulfonates modified with 3-5% of petroleum or petroleum products. Briquetting of mix is effected under pressure 25 MPa.

EFFECT: reduced power consumption, investment and operational expenses, increased briquette fabrication productivity, and increased strength, heat resistance, and calorific value of fuel briquettes.

3 ex

FIELD: solid fuel technology.

SUBSTANCE: invention is designed for application in production of solid fuel in metallurgy and for domestic necessities. Method of restoring sieve composition of coke comprises mixing off-grad coke with binder, such as various cement brands and Portland cement, moistening, briquetting of mix followed by heat treatment, and cooling. Off-grad coke utilized is coke fines fraction 0-10 mm and/or coke nut fraction 10-25 mm belonging to a certain types, which are mixed with binder at ratio (60-95):(5-40), respectively. Moistening is provided by adding water to 35% based on the weight of mix. Heat treatment is effected with steam. Cooling proceeds at ambient temperature to residual moisture content 5%. Mix is completed with filler in the form of organic or inorganic naturally occurring or man-made substances. Briquetting is effected on either vibration or press equipment. Coke briquette contains 60 to 95% of above-defined off-grade coke and 5 to 40 % of binder. Size of thus manufactured briquettes corresponds to required sieve composition of coke.

EFFECT: enabled full restoration of all fractions of needless process coke residues to useful sieve composition appropriate for fabrication of environmentally safe briquettes with improved consumer's properties without considerable investments.

8 cl, 1 tbl, 6 ex

FIELD: production of solid carbonaceous fuel.

SUBSTANCE: the invention is pertaining to the method of production of solid fuel briquettes and may be used at enterprises producing a household fuel. The method provides for mixing of slack coal (sludge cake) with the diameter of fragments of 0.05-0 mm with a mass share a moisture of 16-17 % and with 5 % (23-34 %) of water solution of a cationic polyelectrolyte, compaction of a charge mixture by a hydraulic press at the pressure of 340 kg/cm2 and the thermal treatment at the temperature of t=150°C within 30 minutes. The invention allows to reduce pollutants emissions into the aerosphere at incineration of the solid fuel briquettes that reduces the negative effect on the natural environment and also to exclude the usage of an expensive undersized coke.

EFFECT: the invention ensures reduction of the contaminants emissions into the aerosphere at incineration of the solid fuel briquettes and reduction of the negative effect on the natural environment and also to exclude the usage of the expensive undersized coke.

3 tbl

The invention relates to the production process fuel for use in mining and roasting processes
The invention relates to the technology of production of briquetted fuel and can be used for household needs, metallurgical and chemical industries

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing fuel briquettes, which includes mixing crushed solid fuel with a phenol-alkaline resin in amount of 1.7-1.8% of the weight of coke fines and an ester curing agent in amount of 22-28% of the weight of the resin, pressing the obtained mixture and moulding fuel briquettes, wherein the coke fines with particle size of 0.6-3 mm and moisture content of up to 3% with the phenol-alkaline resin and ester curing agent are mixed in a vortex mixer, and the obtained mixture is pressed by rigid auger extrusion at pressure of 7-8 mPa, followed by moulding a bar which is then broken down into pieces with length of 100-150 mm.

EFFECT: improved efficiency of the process of producing fuel briquettes while simultaneously reducing power consumption and expenses, obtaining high-strength fuel briquettes, high calorific capacity, gas permeability and heat resistance.

1 tbl, 2 ex

FIELD: heating.

SUBSTANCE: invention relates to a charge containing bituminous coal and binding additives; bituminous coal contains an unburnt ash-slag mixture as a result of coal combustion in boiler houses, at thermal power plants, in domestic stoves, coal benefication wastes, and the following is used as activators: coal-tar resin, resinous wastes of coke-chemical and chemical industry, waste machine oils; aluminium powder in the amount of 1-3 vol % is used as a high-calorific additive, and lime in the amount of 13-18 vol % is used as a binding agent. The invention also relates to a manufacturing method of fuel briquettes from a charge, which involves crushing and mixing of charge components; after mixing is completed, water separation, mixture extrusion, and briquette drying and packaging is performed.

EFFECT: improvement of ecology, economical efficiency of bituminous coal processing, reduction of quantity of wastes and increase of heat amount at coal combustion.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: method of producing peat-based pellets and briquettes includes mechanical and chemical processing of water-peat dispersion, used as binding agent. Mechanical and chemical processing of water-peat dispersion is realised by mechanical and/or ultrasonic impact at higher temperature in presence of chemical reagents.

EFFECT: reduction of specific energy consumption per production unit, increase of reaction properties and rate of produced fuel burn-out.

2 cl, 3 dwg, 1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to composition for obtaining fuel briquette, which contains thermally processed coal fines and residues of petroleum processing as binding substance, it contains thermally processed coal fines to humidity not higher than 4-5%, thermally processed to humidity not higher than 4-5% sulfate hydrolytic lignin, neutralised with solution in ratio S:L as 1:5 of slaked lime in amount 1.34 kg per a ton of sulfate hydrolytic lignin and is subjected to mechanical activation, with the following component ratio, wt %: thermally processed coal fine - 74-75%, sulfate hydrolytic lignin - 11-15%, residues of petroleum processing - 15-10%.

EFFECT: increase of ecological safety due to reduction of fraction of emissions of sulfurous compounds in combustion of fuel briquettes.

2 tbl, 2 ex

FIELD: power engineering.

SUBSTANCE: invention includes mixing of ground solid fuel with a binder, briquetting of the mix 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 die mould is first heated to 40-50C, and briquetting of the mix under pressure is carried out under pressure in stages, for this purpose they first set load of 5-6 atm, with a delay of 3-5 min and then up to 15 atm with delay at maximum load of 3-5 min. The produced briquettes maybe used as fuel for burning in domestic and industrial furnaces, as well as for coking in chemical-recovery and metallurgical industry.

EFFECT: production of fuel briquettes of higher strength, improved environmental situation in coal processing regions, reduced prime cost of fuel briquettes.

2 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 100C, 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 250-300C 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: metallurgy.

SUBSTANCE: invention relates to application of BREC produced by stiff vacuum extrusion.Said process comprises coke fines, mineral binder and, if required, brown-coal char to be used as reducer in metallurgical furnace. Mineral binder in production of BREC is normally a cement and, if required, bentonite. Particle size of materials of the mix for BREC production does not exceed 5 mm, BREC weight not exceeding 0.3 kg.

EFFECT: optimum size, higher cold and hot strength.

3 cl, 2 ex

FIELD: oil and gas industry.

SUBSTANCE: invention is related to production of fuel pellets including mixing of filler that contains wood processing waste, combustible component in the form of oil waste and binding agent where fat and oil waste from food industry are also used as combustible component and such combustible component serves simultaneously as binding agent; powdered thickener from combustible material is added to the mixture, at that at first mixing of thickener and binding agent is made in ratio of 0.2-1.0:1 during 1.5-2 minutes in order to thicken the latter, thereafter filler is introduced step-by-step into the thickened mixture and filler takes ratio of 0.5-1.0:1 to the binding agent, then mixture is stirred during 35-40 minutes till pellets of stable shape appear; then thickener is added again in quality of 10-20% of its initial weight in order to prevent sticking of pellets and the mixture is stirred for another 2-4 minutes till finished product of round pellets is received. Received fuel pellets are used for household and municipal boilers for firing up purpose.

EFFECT: claimed method is simpler, more cost effective and ecologically safe.

15 cl

FIELD: chemistry.

SUBSTANCE: invention relates to a method of making fuel briquettes, which involves mixing carbon filler with ground coal, adding a binding substance and briquetting the mixture under pressure. The carbon filler, which is in form of aluminium wastes, anode paste and electrodes in amount of 25.1-85.00 wt %, is dry-mixed with ground brown coal until a 100% dry mass is obtained, followed by addition of the binding substance to the dry mass. The binding substance used is bitumen or polyvinyl alcohol in amount of 2-10 wt %, in excess of 100% of the dry mass. If polyvinyl alcohol is used as the binder, hydrophobic additives are added to the obtained mixture in amount of 1-5 wt %, in excess of 100% of the obtained mixture.

EFFECT: improved properties.

3 cl, 3 tbl, 2 dwg

FIELD: chemistry.

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

Up!