101 results about "Cyclone furnace" patented technology

The invention provides a system and a method for gasification melting of household refuse and treatment of household refuse leachate. The system comprises a household refuse pretreatment system, a refuse energy recovering system and a refuse leachate concentration and flue gas treatment system, wherein the household refuse pretreatment system comprises a household refuse stock bin, a household refuse crusher, a household refuse sieving machine and a household refuse extrusion dehydrator which are sequentially connected; the refuse energy recovering system comprises a fluidized-bed gasifier, a cyclone melting furnace, a waste heat boiler and an air-supplying and oxygen-enriching system matched with the fluidized-bed gasifier, the cyclone melting furnace and the waste heat boiler; the refuse leachate concentration and flue gas treatment system comprises a leachate concentrating system, a flue gas purifying device and a wastewater treatment device. According to the system, the heat value of the refuge is increased by a pretreatment process; an oxygen-enriching gasifier and a high-temperature cyclone melting furnace technology are used as a recovering system of refuge energy; the refuge leachate is concentrated by using medium-temperature flue gas exhausted by the waste heat boiler; the concentrated leachate is sprayed into the high-temperature cyclone furnace for harmless treatment.

The one-step method for producing mineral wool by using industrial furnace molten slag sensible heat includes the following steps: according to the requirement for chemical composition of mineral wool adding proper auxiliary raw material, at the same time, in homogenizing furnace making concurrent heating and regulating its chemical composition temp. and viscosity to make them reach to the requirements of mineral wool molten body, making molten body acidity coefficient be up to 1.1-1.8 (acidity coefficient=SiO2+Al2O3/CaO+MgO), and the molten body temp. is 1300-1340 deg.C, homogenizing its chemical components, feeding the thermally-refined molten body into high-speed centrifuge and feeding it into fibre-forming procedure of mineral wool so as to obtain the invented product.

The invention provides a process of germanium extraction from brown coal, which is germanium extraction by employing a cyclone furnace. The process includes that the brown coal is added in the cyclone furnace to mix with hot wind which is sent into the cyclone furnace, the brown coal is burned, the CO content inside the cyclone furnace is controlled within the range of 0.5-1%, germanium in the brown coal is reduced and volatilized into flue gas, and flue dust is collected as raw material of the germanium. The process can achieve the purposes that the flour shaped brown coal is fully used to enlarge the productivity of the germanium, the recovery ratio of the germanium is increased, and the excess energy is effectively recovered.

The invention relates to a method for preparing calcium magnesium phosphate fertilizer through cyclone furnace process by using phosphorite floatation tailings as raw materials, in particular to a method for preparing calcium magnesium phosphate fertilizer through adopting a cyclone furnace by using phosphorite floatation tailings as main raw materials, belonging to the technical field of phosphate fertilizer chemical industry. The method uses the phosphorite floatation tailings as the main raw materials and adopts the cyclone furnace to prepare calcium magnesium phosphate fertilizer, and comprises the following steps: (1) the phosphorite floatation tailings are used as the raw materials, pulp dry basis contains 8-12 percent of P2O5 by weight percent, tailing filter cakes are obtained through treatment and the tailing filter cakes contain 20-40 percent of water; (2) the tailing filter cakes obtained through the step (1) are dried to tailing power containing water less than 2 percent by using a dryer, and the required grain size of tailing powder is that more than 80 percent of particles can pass through a 100-mesh sieve; (3) other primary phosphorite, coal, serpentine stone and silica to be jointly calcined are metered, mixed, cracked and crushed into joint-calcination mixed powder with fineness that more than 80 percent of particles can pass through the 100-mesh sieve; (4) 100 parts of phosphorite raw material, 190-280 parts of pulverized coal, 0-10 parts of silica and 0-20 parts of serpentine stone powder are added in the cyclone furnace by weight; and (5) the calcined powder raw material obtained through the step (4) is used to prepare calcium magnesium phosphate fertilizer by adopting the cyclone furnace. The invention has the advantages that the source of the raw materials is wide and the cost is low; sulfuric acid and phosphoric acid are not consumed, the product quality is reliable, the use is economic and feasible, and the social benefit is remarkable.

The invention discloses a cyclone melting device and a cyclone melting method for fly ash preheating, particularly relates to a device and a method for fly ash melting treatment. The device comprises a cyclone furnace and a fly ash preheater, wherein a smoke outlet of the cyclone furnace is connected with a hot smoke inlet of the fly ash preheater, and a working medium outlet of the fly ash preheater is communicated with a secondary air tangential inlet of the cyclone furnace. The method comprises the steps as follows: mixing the primary air with coal powders; spraying into the front end of the cyclone furnace from a primary air inlet of the cyclone furnace; carrying fly ashes into the fly ash preheater through the secondary air for the combustion of the coal powders through adopting the pneumatic transmission technology, enabling high-temperature smoke generated by combustion in the cyclone furnace to enter the fly ash preheater for heating the secondary air and the fly ashes, enabling the fly ashes after heated through the high-temperature smoke to enter the cyclone furnace, quickly heating the fly ashes to reach the fly ash melting temperature, rotating the secondary air in the cyclone furnace at a high speed, throwing the fly ashes to the wall surface of the cyclone surface under the action of a centrifugal force, quickly melting the fly ashes through the high-temperature wall surface, and discharging the molten fly ashes in the form of liquid slags from a liquid deslagging hole at the bottom of the cyclone furnace.

The invention provides a direct steelmaking system and a process for electric energy all-hydrogen flash reduction, the system comprises an electrolysis water hydrogen production device, a cyclone flash reduction furnace, an electric heating melting furnace and a tail gas post-treatment device; the process is as follows: the reducing hydrogen and oxygen are prepared by water electrolysis, the oxygen and the steelmaking powder are sprayed into the cyclone flash reduction furnace, meanwhile, the lower part is blown with hydrogen, and reduction reaction occurs between the two phases of gas and solid at 500-1500 DEG C during the countercurrent movement in the cyclone furnace to obtain the pre-reduced iron powder/iron droplets with metallization ratio greater than 80%, and then the oxygen and the steelmaking powder enter the electric melting furnace to carry out melting separation, the bottom blowing hydrogen is stirred and molten to be reduced, continuous steelmaking is carried out, the tail gas preheating/pre-reduction powder is reduced and molten and subjected to dust removing purification, the purified exhaust gas preheats the oxygen and is condensed and separated, the hydrogen returns to the cyclone flash reduction furnace, and the condensed water returns to the electrolysis water to produce hydrogen; the process completely uses electric energy for smelting without relying on fossil fuel, completely uses hydrogen as a reducing agent, and has no pollutant emission in the process, so the efficient, recycling, and cleaning melting of raw materials are achieved.

The invention relates to a method for preparing inorganic fiber fused mass from blast furnace fused slag, which utilizes fused slag discharged by a blast furnace or an electric furnace. The method comprises the following steps: introducing the fused slag into accommodating equipment; metering the mass of the fused slag; proportionally adding other fused ingredients, wherein the temperature of other fused ingredients is between 600 and 1700 DEG C; then, mixing other fused ingredients and the fused slag into uniform fused mass through stirring; and measuring and controlling the temperature of the inorganic fused mass so that the chemical composition, the temperature, the viscosity and the like of the fused mass meet the inorganic fiber forming requirement to obtain the inorganic fiber fused mass. The inorganic fiber fused mass prepared by adopting the method of the invention can be used for preparing various kinds of inorganic fiber. The method mainly has the following advantages: (1) various kinds of industrial furnace slag, such as blast furnace fused mineral slag, electric furnace fused phosphorous slag, iron alloy fused slag, cyclone furnace liquid state slag and the like can be utilized; (2) the sensible heat of the industrial furnace slag is fully utilized, a large number of energy sources are saved, and the carbon discharge is greatly reduced; and (3) the technology is reasonable and advanced, various kinds of inorganic fiber can be prepared, and the stability of the product quality can be ensured.

The invention discloses a cyclone reburning method and device for reburning fuel in a cyclone drum for denitration. The device comprises a cyclone drum, a boiler main hearth and a granulating water tank, wherein the cyclone drum and the boiler main hearth are connected seamlessly through a concave outlet of the cyclone drum, overfire air nozzles are distributed at the upper part of the boiler main hearth, and the granulating water tank used for granulating liquid slag is arranged at the bottom of the boiler main hearth. In the invention, since reburning denitration is realized in the cyclone drum, reburnt fuel can stay in a boiler for a longer time; meanwhile, the upper part of the boiler main hearth at the rear part of the boiler has enough space for the distribution of the overfire air nozzles; therefore, the problem that the normal operation of a cyclone furnace boiler is threatened when a conventional reburning technology is adopted is solved very well, and the problems of the reburning technology per se, such as low burn-off rate of reburnt fuel and high smoke temperature of a hearth outlet and the like, can be overcome very well. The method disclosed in the invention not only has high denitration rate, but also uses simple equipment, is convenient and easy to implement, has low cost, is easy in the reformation of a traditional boiler, has remarkable social benefit and can be promoted and applied widely.

The invention relates to a chromium slag processing method which includes the steps of weighing and blending of ash of a refuse incineration power plant, medical incineration ash and raw coal, incineration and detoxification, fly ash remelting, smoke exhausting, water quenching and sealing, and the like. Poisonous chromium slag is detoxified by reduction at high temperature through a cyclone furnace. By making the best of the characteristic that a reducing area formed in operation with high heat strength, sufficient reducing power and a small air coefficient of excess air of the cyclone furnace reduces hexavalent chromium into trivalent chromium, the process of chromium slag processing is finished on the premise of guaranteeing the heat generation capacity. The chromium slag processing method is thorough in detoxification and free of secondary pollution, the chromium slag is recycled, and both positive benefits and environmental protection are achieved.

The invention discloses a barium slag processing system and method which are thorough in detoxication, high in processing efficiency and high in resource recycling rate. The barium slag processing system comprises a crusher, a cyclone furnace, a primary dust remover, a secondary dust remover, a sweetener and a water quenching water tank. The barium slag processing method includes the following steps of (1) raw material crushing, (2) high-temperature combustion, (3) smoke processing and fly ash remelting and (4) water quenching and sealing. Barium slag processed through the processing system and method is detoxified thoroughly and has no secondary pollution. Water quenching slag obtained after detoxication can serve as auxiliary materials for producing cement or can be used for paving roads, making construction materials and the like, so that recycling of waste slag is facilitated. Heat generated in the combustion process of the cyclone furnace can be applied to chemical industry production, and both economic and environmental protection benefits are gained.

The invention discloses a self-heating continuous powdery biomass activated carbon preparation method and a cyclone furnace thereof. The method is as follows: a screw feeder feeds powdery biomass carbonized material into the cyclone furnace with the temperature of 90 DEG C to 1300 DEG C via a feed inlet on the furnace head of the cyclone furnace; under the joint action of the axial draft of a draught fan from the furnace head to the furnace tail and the activating mixed gas obliquely entering via a row of inlet tubes on the furnace wall of the cyclone furnace, the powdery biomass carbonized material is formed into a cyclone in the cyclone furnace, rotationally flows from the furnace head to the furnace tail and carries out activating reaction with the entered activating mixed gas in the process of motion to generate gas, the generated gas continues to burn with oxygen, and the produced heat is used for keeping the internal temperature of the cyclone furnace at 900 DEG C to 1300 DEG C; powdery biomass activated carbon and reaction tail gas coming out of the cyclone furnace enter a waste heat boiler, and the produced steam reenters the cyclone furnace. The 0.15-percent methylene blue absorption of the obtained powdery activated carbon is more than 18ml, and meanwhile, the powdery activated carbon has the A-method caramel decolorization rate of more than 70 percent.

The invention discloses an oxygen-enriched combustion supercritical carbon dioxide cyclone furnace. The cyclone furnace comprises a cyclone furnace body and a tail flue gas comprehensive treatment system. The cyclone furnace body comprises a cyclone tube and a supercritical carbon dioxide boiler. The tail flue gas comprehensive treatment system comprises an SCR denitration device, a dust collector, a gas-gas heat exchanger, a condenser, a first-stage compressor, an air separation device, a cooler, a second-stage compressor, a flue gas mixing device and a pulverizing system. The oxygen-enriched combustion supercritical carbon dioxide cyclone furnace integrates the oxygen-enriched combustion technology and supercritical carbon dioxide power cycle generation organically.

The invention discloses a recycling system for a waste cathode block from electrolytic aluminum and a recycling method. The invention aims to solve the technical problems of low recycling rate of the present waste cathode block, serious energy waste and high recycling cost. The recycling system comprises a high-temperature cyclone furnace and a dry purifying device, wherein the high-temperature cyclone furnace comprises a furnace body, a burner and a heat exchanger. The recycling method comprises the following steps: crushing the waste cathode block from electrolytic aluminum into powder; adding combustion improvers and burning the powder by the high-temperature cyclone furnace; preheating the secondary inlet air of the high-temperature cyclone furnace by the smoke generated by burning through the heat exchanger and purifying through the dry purifying device. The high-purity recycling of the electrolyte in the waste cathode block can be realized by the recycling system provided by the invention; the heat energy generated by powder combustion can be fully utilized; the production energy consumption is reduced; the waste of energy resource is avoided; the recycling method is simple in operation, energy-saving and environment-friendly; the recycling of the waste cathode block can be realized according to the recycling method.

The invention discloses a combined cyclone boiler combustion device and method for flying ash fusion. The device is composed of a horizontal cyclone combustion chamber, a vertical cyclone combustion chamber and a water channel, wherein the outlet of the horizontal cyclone combustion chamber is connected with the inlet of the vertical cyclone combustion chamber; after pulverized coal conveying air is mixed with pulverized coal, the mixture is injected into the horizontal cyclone combustion chamber from the boiler head of the horizontal cyclone combustion chamber; after primary air is mixed with the flying ash, the mixture tangentially enters the horizontal cyclone combustion chamber from the lower reaches of the fuel inlet, so that the temperature of the front end of the horizontal cyclone combustion chamber can not be lowered, and the front-end area of the horizontal cyclone combustion chamber can be kept at high temperature, which is favorable for the pulverized coal to stably catch fire and burn; secondary air tangentially enters the vertical cyclone combustion chamber; and the rotation direction of the secondary air is same with the rotation direction of the primary wind. According to the device and the method, flying ashes of different particle diameters can be guaranteed to fully fuse, and the integral fusion collection efficiency of the flying ash can be improved.

The invention relates to a cyclone furnace and a method for improving the slag captured rate of the cyclone furnace. The cyclone furnace comprises a cyclone furnace cyclone cylinder (2) and a central cylinder (1) additionally arranged inside the cyclone furnace cyclone cylinder (2). The method for improving the slag captured rate of the cyclone furnace comprises the steps that the cyclone furnace is adopted, after fuels are combusted in the cyclone furnace cyclone cylinder, and generated high-temperature flue gas carrying liquid slags rotates along the inner wall of the cyclone furnace cyclone cylinder and flows from top to bottom; the liquid slags are discharged through a solidified slag pool; the high-temperature flue gas returns into the cyclone furnace cyclone cylinder when flowing to the lower portion of the cyclone furnace cyclone cylinder, then flow from bottom top top from the central position of the cyclone furnace cyclone cylinder and is exhausted from the interior of the central cylinder. By adopting the cyclone furnace, the flow track of slag films can be changed, and the slag captured rate of the cyclone furnace can be improved substantially.

The invention discloses a brown coal drying technology and system. When brown coal containing germanium is processed at present and smoke containing germanium is recycled, due to the fact that brown coal has the characteristics of being high in water content and volatile component, the requirement for production cannot be completely met through a raw material steam drying system. According to the novel brown coal drying system technology, high-temperature smoke generated in a cyclone combustion furnace and brown coal with the water content of about 40% are rapidly mixed, crushed and dried in a crushing airflow drying machine, powdery brown coal with the water content of 10-12% after water removing is brought out through airflow, and the powdery brown coal is used for a cyclone furnace after being collected by a plurality of sets of cyclone dust collectors and a plurality of sets of bag-type dust collectors. The controllability of the system is high. Due to the fact that fuel of the cyclone combustion furnace is supplied through the dried powdery brown coal in the system, the smoke containing germanium is enriched in the dried brown coal for next germanium extraction, and the yield is increased.

The invention provides a cyclone furnace denitration system and method. The cyclone furnace denitration system comprises a cyclone cylinder combustor and a reducing agent storage tank which are connected with the cyclone furnace; an SNCR first nozzle is arranged at the upper part of a hearth of the cyclone furnace, and an SNCR second nozzle is arranged in the top of a hearth flue; the axial direction of the cyclone cylinder combustor is vertically mounted on the outer side wall of the lower part of the hearth of the cyclone furnace, the side wall of the cyclone cylinder combustor is provided with an amino reducing agent first nozzle, and an amino reducing agent second nozzle is arranged on the side wall of the hearth above the cyclone cylinder combustor; a primary air inlet is formed in the axial direction of the cyclone cylinder combustor, and a secondary air inlet is oppositely arranged in the tangential direction of the side wall; the reducing agent storage tank is correspondingly connected with the SNCR first nozzle, the SNCR second nozzle, the amino reducing agent first nozzle and the amino reducing agent second nozzle through a reducing agent conveying pipe. The cyclone furnace denitration system and method has the advantages that the process flow is simple, the storage and conveying equipment of the SNCR denitration reducing agent is fully utilized, a new reducing agentstorage and conveying device does not need to be added, so that a new combined denitration system is formed, and the low emission of NOx of the cyclone furnace is realized.

An ultra-low temperature smoke-exhausting energy-saving boiler relates to an energy-saving boiler capable of reducing pollution discharge. The invention aims to solve the problems of low fuel utilization efficiency caused by high dust concentration and high carbon content of fly ash in exhaust gas of existing coal-fired industrial boilers, and wear and tear of heat exchange equipment such as convection tube bundles and economizers at the tail of the boiler. The upper end of the furnace body communicates with the upper end of the vertical flue through the cyclone dust collector, the bottom end of the cyclone dust collector communicates with the furnace body, and a desulfurizer spout is opened on the upper end surface of the furnace body. The invention realizes the recycling of the desulfurizer in the effective area of ​​high-temperature sulfur fixation, greatly reduces the SO3 content in the flue gas while improving the SO2 removal efficiency, and improves the energy efficiency of the boiler by more than 10%; the unburned carbon particles are sent back for reburning The carbon content of the fly ash can be reduced to less than 2%, and at the same time, it can improve energy efficiency and reduce equipment wear. The energy-saving boiler of the invention can be used not only for newly-built boilers, but also for technical transformation of existing boilers.

The invention provides a method for gas-phase vanadium extraction by utilizing combustion of stone coals in cyclone furnace. After stone coals are crushed, fuels are added, and ground to powder, and the additive fuels weigh 5%-15% of the stone coal raw material. The powder and air with an oxygen content of 21%-30% are sent to a cyclone furnace, gas-state vanadium pentoxide is generated and discharged along with furnace gas, formed ash slag adheres to a cylinder wall and forms liquid-state ash membranes, which are discharged through a kettle opening. Furnace gas is mixed with cool air, cooled, dedusted by cyclones and enriched in an electrostatic fabric filter. The enrichment objects are soaked by an alkali solution to obtain a vanadium-containing soaking solution. The dust in the furnace gas is sent to a secondary spray tower, and the gas-state vanadium pentoxide is dissolved in a vanadium-containing spray solution. Sulfuric acid or hydrochloric acid are added to the two vanadium-containing solutions, and vanadium pentoxide crude products are precipitated through acid neutralization. The temperature in the furnace is high, and low-valence-state vanadium can be oxidized and gasified fully. The cyclone furnace has high slag-capturing rate, and the burden of dedusting devices is light. The powder in the furnace is thrown onto slag membranes, the resistance time is long, and the continuity and sufficiency of combustion can be maintained.

The invention relates to the fields of sensible-heat utilization of metallurgical high-temperature slag and efficient comprehensive utilization of resources, and provides a thermal-state slag online modification device. Through the device, high-quality modified slag can be prepared by use of the sensible heat of slag. The device comprises a top plug, a modification furnace body, a primary wind gap, a secondary wind gap, a third wind gap, a cyclone hearth, a stirring paddle, a partition wall, a slope pool bottom, a slag discharge hole, an iron liquid discharge hole, a scrap iron separation wall, a flue, a handle, a pressure relief hole, a combustion observation hole, an ignition burner, a modification chamber observation hole, a concurrent heating burner, a slag discharge chamber observation hole, a liquid flow hole, a charging hole, a sampling hole, a modification chamber, a scrap iron separation chamber, a slag discharge chamber and a cyclone furnace body. The high-quality modified slag after the treatment by the device can be directly applied to the fields such as building materials and industries; the metal iron can be recycled from the iron-containing slag. The device is simple to operate, low in operation cost and wide in application range, and has relatively good application prospect and economic value.

The invention provides a biomass garbage combustion system and method. The garbage combustion system comprises a first conveying device, a second conveying device, a circulating fluidized bed garbage incinerator and a cyclone furnace, wherein the first conveying device and the second conveying device are communicated with a feeding port of the circulating fluidized bed garbage incinerator respectively; the circulating fluidized bed garbage incinerator is used for combusting biomass garbage primarily and is provided with a bottom slag discharging port and a smoke outlet, the bottom slag discharging port is used for discharging bottom slag after combustion in the circulating fluidized bed garbage incinerator, and the smoke outlet is communicated with the cyclone furnace and used for guiding unburnt biomass and fly ash in the circulating fluidized bed garbage incinerator into the cyclone furnace for combustion; the cyclone furnace is used for combusting materials entering the cyclone furnace secondarily, so that the biomass and the fly ash are molten into glass materials and discharged from the bottom, and produced smoke is guided out for follow-up treatment. The biomass garbage combustion system and method can effectively solve the problems of high probability of coking and ash accumulation, lower incineration temperature and the like caused by high content of alkali metal in the biomass.

The invention discloses a formaldehyde waste gas treatment system. The formaldehyde produced during the chemical reaction of rubber making in a reaction kettle is connected to a fan through a pipeline, and the outlet of the fan is connected to a secondary fan through a pipeline. The air outlet of the secondary fan is It is connected with the pipeline leading to the boiler, and the pipeline protruding into the furnace is welded with sub-pipes. The number of the sub-pipes is at least six, and the sub-pipes are inserted into the furnace at a certain angle. The angle to which each sub-pipe is arranged is based on the cyclone that can be formed when inserted into the furnace. When preparing urea-formaldehyde resin adhesive, formaldehyde and urea are mixed in a certain molar ratio in a reactor, and react in the reactor to form a urea-formaldehyde resin. In this technical solution, after the rubber-making chemical reaction is carried out in the reactor, the formaldehyde waste gas produced is led to the boiler through the pipeline, and is fully burned in the furnace to generate water and carbon dioxide, thereby improving the combustion efficiency and fully utilizing the waste gas.