38results about How to "Reduce fly ash" patented technology

The invention discloses a clean coal gas production method. The clean coal gas production method is characterized in that the production method comprises the procedures of powdered coal gasification, dedusting in high-temperature segment and indirect cooling. The clean gas production method is composed of high-efficiency coal gas generation, heat recovery, high-temperature dedusting, and ash-free water cooling, therefore, the product gas can meet the requirement of the clean coal gas.

The invention discloses a coal combustion-supporting hydrogel as well as a preparation method and application thereof. The coal combustion-supporting hydrogel is prepared through the following steps of: (1) uniformly mixing 30-89% of metal nitrate, 5-60% of potassium chlorate, 1-3% of rare-earth elements, 5-30% of alkali metal hydroxide and 0-20% of sodium silicate, so as to obtain a mixture; (2) dissolving 3% of poly (N-isopropylacrylamide) and 30% of oxydol in water, and uniformly stirring, so as to obtain a solvent; and (3), dissolving the mixture in the solvent, so as to obtain the coal combustion-supporting hydrogel. The coal combustion-supporting hydrogel disclosed by the invention is non-corrosiveness, is stable in property, can be easily adsorbed to the surface of coal powder so as to form a loose porous combustion adjuvant layer, can be directly mixed with coal by virtue of a spraying device, and is convenient in use. By utilizing the coal combustion-supporting hydrogel disclosed by the invention, the desulfurization percent reaches 85%, the standard coal saving rate is 14.6%, the boiler thermal efficiency is improved by 10.6%, the carbon content of slags is reduced by 12.7%, and decoking, smoke abatement and corrosion inhibition reach more than 92%, so that the coal combustion-supporting hydrogel can achieve a combined action of saving coal and reducing the pollutant emission.

The invention provides a solid waste incinerator body. The incinerator body and a hearth of an incinerator are of vertical structures. The hearth is sequentially provided with a drying zone, a pyrolyzing zone and a burning zone from top to bottom, a group of fiery pits are arranged on the inner side of the hearth, a group of spray guns are respectively arranged on the outer side, the left side and the right side of the burning zone, a blocky compressed solid waste inlet is arranged on the outer side of the upper portion of the hearth, a boiler furnace and a draught fan are arranged at the top of the hearth, a group of spray guns are arranged on the side wall of the boiler furnace, the draught fan enables smoke to be discharged out of the incinerator, oxygen enriched gas formed by mixing residual smoke and pure oxygen is led to the third group of spray guns of the burning zone and the group of spray guns of the boiler furnace. The incinerator hearth is small in volume and large in solid waste disposal capacity, and the solid waste incinerator body is rapid in burning speed, good in effect, capable of disposing solid waste of various kinds at the same time, energy-saving, environment-friendly and remarkable in effect.

This invention relates to a three return travel half coal, oil and gas fuel smokelessness boiler. It includes boiler external cylinder, inner bag shell, multiple horizontal siphonal areas, water cold wall pipe, and combination furnace arch and fire grate. Its feature is that annular secondary air bellows and arched first air bellows are fixed under fire grate, the secondary air bellow is interconnected to vertical quadric air manifold set along furnace outer wall, semilunar horizontal air pipe is set under arched high temperature fume outlet at both sides of furnace. The combination furnace arch is consisted by yi form up furnace arch, inverse L form middle arch and concave down arch. The three arches are all formed by combination of horizontal cleet water cover and vertical cleet water cover and plugging cleet water cover connecting through fire bricks, and malpositioned in inner bag shell, three return travel flue is formed under up furnace arch. Both sides of up parts of inner bag shell shrink entad to form two segment special form barrel of vertical upright faces. Up part horizontal pipe is put up between two vertical upright faces. Bituminous coal smokelessness burning technique and inner furnace smoke prevention and dust control technique is formed by the boiler in this invention and air distribution burning technique and multifunction furnace arch structure. Coal cleanliness burning smokelessness boiler is formed by the combination of bituminous coal smokelessness burning technique and three return half coal process. Its heat efficiency is high when running longtime, energy saving effect is great, discharging of polluting matter is low, and the oil and gas fuel boiler is achieved.

The invention discloses an anaerobic cracking treatment device for household garbage. The device comprises: a feeding system, which is used for pretreating raw materials and dividing the raw materialsinto a first material and a second material; a carbonization cracking system, which is used for carrying out pyrolysis treatment on the raw materials conveyed by the feeding system, and comprises a carbonization furnace and a cracking furnace, wherein the carbonization furnace comprises a carbonization part and a carbonization heating jacket, and the cracking furnace comprises a cracking part anda cracking heating jacket; a cracking gas purification system, which is used for purifying gas generated by the carbonization furnace and the cracking furnace; and a combustion system, which is usedfor providing heat required by reaction for the carbonization furnace and the cracking furnace by the gas purified by the cracking gas purification system. The household garbage is divided into two parts to be treated, each part of the household garbage is subjected to pyrolysis treatment in an anaerobic cracking mode, the cracked product can be recycled, and comprehensive utilization of resourcesis achieved.

The invention relates to the mechanical field, in particular to a pulverized coal boiler. The present invention provides a pulverized coal boiler, which includes a furnace and burners for burning pulverized coal, the number of the burners is even, the burners are evenly located at the bottom of the furnace, and the burners are inclined towards the center of the furnace . In the pulverized coal boiler of the present invention, the number of the burners is even, the burners are evenly located at the bottom of the furnace, and the burners are inclined towards the center of the furnace. Burners inclined towards the center of the furnace, most of the ash produced by combustion moves towards the center of the furnace or towards the bottom of the furnace. Since a pair of burners are symmetrical to each other, the airflow of the two burners is balanced in the center of the furnace, so the ash The ash falls from near the center of the hearth as the inertia decreases. Therefore, the pulverized coal boiler of the present invention can reduce the fly ash attached to the side wall of the furnace or accumulated at the bottom of the furnace close to the side wall of the furnace.

The invention discloses a boiler capable of preventing biomass coking. The boiler comprises an air distribution chamber, a chain grate stoker, a steam conveying pipe, a steam manifold, a reducing valve, a pressure gage and steam outlet holes; the air distribution chamber is arranged below the chain grate stoker, and the steam conveying pipe is arranged at the position, above an air distribution bend, of the air distribution chamber, and is fixed to an inclined lateral wallboard of the air distribution chamber through a support; the steam conveying pipe is connected with the steam manifold through the reducing valve; the pressure gage is further installed at the position, in front of the air distribution chamber, of the steam conveying pipe and is located at the front end of the reducing valve; and the steam outlet holes are arranged at the positions, located inside the air distribution chamber, on the steam conveying pipe and face a main burning area of the chain grate stoker, and steam can rapidly reach portions needing to be cooled. The boiler capable of preventing biomass coking includes two steps of feeding burning and steam leading in. According to the method, the air distribution chamber is combined with steam conveying, the structure is compact, using is simple and convenient, biomass burning coking is effectively prevented, the burn-off rate is improved, the cost is reduced, and the method is suitable for industrial production.

The invention relates to the technical field of garbage treatment, in particular to a household garbage treatment method. The method comprises following steps that garbage is fed into a dissolving furnace, dissolving oil is led into the dissolving furnace, organic matter in garbage is dissolved into dissolving oil and/or grease generated through heating and decomposing of the organic matter through dissolving oil is blended into the dissolving oil to form mixed oil, and volatile organic gas is collected; a solid-liquid mixture is fed into a solid-liquid separator to be subject to solid-liquid separation, and remaining mixed oil and residual solids are obtained; the generated residual solids are fed into a cracking furnace to be subject to high-temperature cracking, and fuel carbon and organic gas are obtained; the technical problem that when an existing product carries out pyrolysis on household garbage, the pyrolysis temperature higher than the garbage resistant to high temperature is adopted to carry out pyrolysis on the garbage resistant to low temperature, and energy is wasted is solved, and the household garbage treatment method can reduce energy consumption during household garbage pyrolysis.

The invention provides environmental-protection energy-saving emission-reduction synthetic smokeless coal, which belongs to the field of environmental-protection energy sources, uses rice husks as main raw materials to replace the existing coal, and can achieve energy conservation, environment protection and enough heat value. The environmental-protection energy-saving emission-reduction synthetic smokeless coal comprises parts by weight, main materials of rice husk particles and smokeless coal particles and auxiliary materials of corn starch. The environmental-protection energy-saving emission-reduction synthetic smokeless coal is high strength briquette molded by high pressure, is compact in texture, cannot crack automatically in a combustion process, is small in fly ash, restructures and changes structures, performances and properties of the coal, and can achieve maximum efficiency. The environmental-protection energy-saving emission-reduction synthetic smokeless coal has the advantages of being rapid in ignition, capable of prolonging combustion time of the coal, improving thermal efficiency and saving the coal, free of pollution and smoke, capable of achieving the purposes of dust removal combustion supporting and desulfuration, convenient to use, safe and reliable, easy to store and capable of being applied to industrial power coal and civil life coal widely.

The invention discloses an energy-saving and environmentally-friendly chain furnace which comprises a gasification device and a fly ash unit; the gasification device is arranged at the upper part of afire gate, blows combustion-supporting air to the fire gate from top to bottom and is arranged at a front arch, an open chamber for accommodating the purification device is formed in the front arch,and the gasification device blows the combustion-supporting air to the fire gate from top to bottom; the fly ash unit is positioned in a position at the rear end of the front arch and is used for blowing fly ash into a furnace body, so that coal and the fly ash in the chain furnace are fully burned, therefore, the coal conversion efficiency is higher, the waste of coal resources cannot be caused,and the pollution caused by harmful gas produced by insufficient combustion of the coal to an environment is reduced; the chain furnace is simple in structure and convenient to use, thereby being an energy-saving, efficient and environmentally-friendly novel chain furnace.

The invention provides a biomass briquette fuel and a preparation method thereof, and belongs to the technical field of energy fuels. The biomass briquette fuel is prepared from, by mass, 100 parts offorest waste particles, 20-35 parts of rice hull powder, 20-30 parts of crushed cotton stalk particles, 25-45 parts of pulverized coal, 10-15 parts of diatomite, 8-15 parts of coal tar, 2-4 parts ofsodium carboxymethyl cellulose and 1-3 parts of a sulfur fixing agent. The biomass briquette fuel prepared from the components in proportion can be fully combusted, also has a high combustion heat value of 5150-5236 Kcal/kg, and does not generate sulfur dioxide gas or fly ash.