245results about "Dust arresters" patented technology

The invention provides a blast furnace tap hole dust removal control method and system, relates to the field of blast furnace dust removal, and aims to solve the problem that smoke dust control is difficult to meet requirements due to the fact that only tapping hole molten iron discharge is considered in current air volume adjustment, and smoke dust concentration and distribution conditions can be more accurately judged by comprehensively considering operation machine and molten iron factors. The rotating speed of the fan can be adjusted in time at the moment that a large amount of smoke dust is generated by the operation machine, dynamic adjustment is performed based on the actual smoke dust condition and the state of the operation machine, unnecessary high-air-volume operation is avoided, smoke dust diffusion is effectively controlled, and therefore more accurate control over the dust removal fan is achieved.

The invention discloses an online monitoring management method and system for the complete cycle of carbon, iron and zinc separation of blast furnace bag-type dedusting ash, and relates to the technical field of dedusting control, the method comprises the following steps: dividing the complete cycle of the carbon, iron and zinc separation process of the blast furnace bag-type dedusting ash into a plurality of separation stages, and sequentially executing automatic monitoring of each separation stage, and according to the stage monitoring index set, carrying out separation state evaluation of the current stage, if a stage separation evaluation result is qualified, entering the next separation stage, and if the stage separation evaluation result is unqualified, carrying out separation compensation calculation, and carrying out carbon-iron-zinc separation regulation and control according to a separation compensation strategy. The technical problems that in the prior art, real-time regulation and control means are lacked, separation deviation is difficult to correct rapidly, and the blast furnace cloth bag dedusting ash carbon-iron-zinc separation efficiency and the resource recovery rate are affected are solved, and the technical effect that the blast furnace cloth bag dedusting ash carbon-iron-zinc separation efficiency and the resource recovery rate are improved through staged real-time monitoring and dynamic regulation and control is achieved.

The invention relates to the technical field of gas blow-off valves, and particularly discloses a blast furnace top gas blow-off valve sealing device, the side face of a valve body is fixedly connected with a transmission part, the output end of the transmission part is fixedly connected with a valve cover, and the bottom of an inner cavity of the valve body is fixedly connected with a net plate; the top of the moving part is fixedly connected with a contact part, the top of the contact part is rotatably connected with a cleaning part, the moving part comprises a fixed shaft, the bottom of the fixed shaft is fixedly connected with the top of a net plate, and the fixed shaft is slidably connected with a moving frame. According to the blast furnace top gas blow-off valve sealing device, the moving part is arranged, the moving frame drives the scraping plate to slide in the mode of being tightly attached to the inner wall of the valve body in the moving process, smoke dust attached to the wall face is continuously scraped off, it is avoided that a large amount of smoke dust is left in the valve body when gas is discharged, and the risk that equipment is abraded and blocked due to dust accumulation is reduced; and the service life of the valve body is prolonged.

The invention belongs to the technical field of removal of CO2 from metallurgical gas, and particularly discloses an energy-saving method for a hydrogen-rich carbon circulating oxygen blast furnace gas decarbonization system, which comprises the following steps: in the process of capturing CO2 in gas by a hydrogen-rich carbon circulating oxygen blast furnace, by utilizing external slag flushing water and heat in the system, steam required by a CO2 regeneration process is greatly reduced, and the CO2 regeneration process is reduced; the high-temperature spray circulating soft water of the compressor of the decarburization system is used for heating the decarburization solution in the regeneration tower, so that steam consumed by regeneration in the decarburization system can be reduced, circulating water consumed by a cooling compressor of an original system can be reduced, the consumption of the circulating water and the power consumption cost of the circulating water are reduced, and the energy consumption of the system is reduced. The latent heat of the increased saturated water can be increased by increasing the exhaust temperature of the compressor, the amount of saturated water entering the decarburization system can be increased by increasing the exhaust pressure of the compressor, the desalted water supplementing amount of the decarburization device can be reduced, and the energy consumption of the current hydrogen-rich carbon circulation oxygen blast furnace gas carbon dioxide trapping process can be greatly reduced.

A process for operating an oxidizable combustion gas cleaning unit in a metallurgical plant, including the steps of: (a) passing an oxidizable combustion gas from a metallurgical reactor, in particular a blast furnace gas from a blast furnace, in a packed bed scrubber arrangement through a packed bed in countercurrent with a washing water or in a spray scrubber arrangement to remove cyanide compounds, in particular hydrogen cyanide, and to increase the removal of chloride compounds, in particular hydrogen chloride, from the combustion gas by solubilizing the cyanide and chloride compounds in the washing water, (b) collecting the washing water containing solubilized cyanide and chloride compounds at a bottom end of the packed bed or spray scrubber arrangement, and (c) collecting a cleaned oxidizable combustion gas at a top of the packed bed or spray scrubber arrangement, wherein a base is added to the washing water before step (a).

The invention discloses blast furnace coal injection equipment and a using method thereof, and relates to the technical field of blast furnace coal injection equipment, and the blast furnace coal injection equipment comprises a crusher used for crushing raw coal; the flue gas furnace is used for inputting dry gas generated by combustion of the crusher into the crusher; the bag-type dust collector is connected with the crusher and the induced draft fan, and an air outlet of the induced draft fan is connected with the chimney The top of the pulverized coal bunker is provided with a bunker top dust remover, a plurality of filter bags are arranged in the bunker top dust remover in an array mode, and the bunker top dust remover is connected with a chimney. According to the blast furnace coal injection equipment, the technical problems that a gas medium in a pulverized coal bunker cannot be quickly and effectively discharged and pulverized coal leaks from the pulverized coal bunker due to the fact that water vapor in the pulverized coal bunker is mixed with pulverized coal to form thinner coal slime which can paste a filter bag of a bunker top dust remover are solved; the waste heat of the dry gas is used for drying the filter bag in the bin top dust remover, so that the air permeability of the filter bag is improved, and the coal powder leakage of the coal powder bin is avoided.

The invention discloses a blast furnace coal injection raw coal online preheating method and system, relates to the technical field of blast furnace ironmaking coal injection, and aims to solve the problem that raw coal of a pulverized coal preparation system needs a better preheating dehydration scheme. The method comprises the steps that a raw coal bunker is transformed or newly built, multiple layers of steam pipelines are arranged in the height direction of a bunker body, the two ends of the multiple layers of steam pipelines are connected to the same main steam pipeline, and all the layers of steam pipelines penetrate through the wall of the raw coal bunker and are connected with a heat exchange structure in the bunker; an anti-collision device is additionally arranged above each layer of steam pipeline and the heat exchange structure in the bin to play a role in protection, and a drain pipe is connected below the outlet end of each layer of steam pipeline to drain condensate water; the top of the raw coal bunker is connected with a dust remover for discharging water vapor generated after raw coal is heated; the structure is simple, and the preheating effect on raw coal is effectively improved; the water content of the preheated raw coal entering the mill is reduced, and the yield of the mill can be effectively improved.

The invention discloses a blast furnace gas pressure swing adsorption carbon dioxide capture coupling compression energy storage system, and belongs to the technical field of adsorption and energy storage. According to the blast furnace gas pressure swing adsorption carbon dioxide capture coupling compression energy storage system, through energy integration, pressure energy and heat energy of blast furnace gas are utilized, and cooperation of CO2 capture and compression energy storage is achieved. Through heat recovery and pressure energy utilization, the overall efficiency of the system is remarkably improved, and the cost is reduced. In addition, the system can flexibly adjust the CO2 capture and energy storage process according to the power grid demand, and the flexibility of the system is improved. The innovative coupling system provided by the invention not only can effectively solve the problem of CO2 emission reduction in the iron and steel industry, but also can provide support for large-scale application of renewable energy sources, and has important theoretical significance and practical application value.

The invention belongs to the technical field of a process for removing CO2 from metallurgical gas, and particularly discloses a method for decarburizing a large-scale gas device of a hydrogen-rich carbon circulating oxygen blast furnace, which comprises the following steps of: performing dust removal on furnace top gas for three times, feeding the furnace top gas into a compressor for pressurizing, and spraying soft water to cool the compressor while pressurizing, supercharged furnace top gas and liquid spraying soft water are discharged from a compressor together and enter a compressor gas-liquid separator, a first emergency circulating valve and a second emergency circulating valve are used for dealing with the situation when a decarburization system breaks down, the furnace top gas enters an absorption tower, purified gas in the absorption tower is heated through a gas heating furnace and then sprayed into a hydrogen-rich carbon circulating oxygen blast furnace, and the hydrogen-rich carbon circulating oxygen blast furnace is used for decarburization. The amine solution rich solution absorbing CO2 enters a flash tank for flash evaporation, the amine solution rich solution subjected to flash evaporation enters a regeneration tower to generate an amine solution barren solution, the amine solution rich solution is heated by a reboiler or slag flushing water in the process and then returns to the regeneration tower for regeneration, one path of regenerated semi-barren solution is filtered and then returns to the regeneration tower, and the other path of regenerated semi-barren solution enters an absorption tower for recycling.

The utility model discloses a blast furnace gas dry dedusting cloth bag blowback system which comprises a dedusting box, a frame and a cloth bag, the frame and the cloth bag are arranged in the dedusting box, a pressure pump is arranged on a gas outlet pipe of the dedusting box, a pressure relief pipe is arranged at the top of the dedusting box, and the gas outlet pipe and the pressure relief pipe are both communicated with a clean gas pipe network. A vertical pipe is arranged in each frame, the lower end of each vertical pipe is blocked by a blocking plate, a sliding plate capable of sliding up and down is arranged in each vertical pipe, a spring is arranged between each sliding plate and the corresponding blocking plate, a vertical rod is arranged on the lower surface of each sliding plate, and the lower end of each vertical rod penetrates through the corresponding blocking plate and then is connected with an impact block; the air distribution pipe is communicated with each vertical pipe through a branch pipe, an air inlet pipe and an air outlet pipe are arranged on the air distribution pipe, a fan and an air inlet valve are sequentially arranged on the air inlet pipe in the airflow direction, and a pressure release valve is arranged on the air outlet pipe. In conclusion, the dust removal device has the advantages of being low in use cost, high in working efficiency and good in dust removal effect.

An intelligent blast furnace dust removal system relates to the technical field of environment-friendly dust removal and comprises a visual capture system and a DCS (distributed control system), the visual capture system is mounted at an iron outlet and a tank position swing chute of a blast furnace, and electric adjusting valves and pressure sensors are arranged at dust removal point pipelines and dust removal branch pipes of the blast furnace. The visual capturing system is electrically connected with an electric adjusting valve and a pressure sensor, the DCS system is electrically connected with the electric adjusting valve, the pressure sensor, the visual capturing system, a fan and a motor, and the DCS system is electrically connected with an upper computer. The system can accurately recognize and adapt to different working conditions, self-balance of the air volume of a pipe network and optimal air volume distribution are achieved, energy consumption is reduced, and dust removal efficiency is improved; meanwhile, the system operation strategy is continuously optimized through big data operation and deep learning, and the intelligent level is improved.

The invention relates to the technical field of blast furnace swing flow nozzle smoke dust treatment, in particular to a blast furnace swing flow nozzle smoke dust collecting device which comprises a frame body, the top plate is fixedly connected to the top of the frame body; the four observation holes are formed in the top plate; the bottom plate is fixedly connected to the bottom of the frame body; the flow nozzle body is arranged in the frame body; through cooperation of the flow nozzle body, the fireproof buffer layer, the steel shell and the reinforcement cage, a layer of fireproof bricks is laid in the steel shell of the swing flow nozzle body, the brick joints of the fireproof bricks are filled with fireproof cotton, the brick joints are controlled within 5 mm, the fireproof bricks and the fireproof cotton are used for buffering expansion stress and water analysis generated in the baking process of swing castable, and therefore the flow nozzle is formed. Expansion stress is further released, and cracks of the thick refractory materials on the two sides during swinging are reduced; the steel reinforcement cage is additionally arranged at the bottom of the steel shell, 10 mm steel reinforcements are adopted for manufacturing the steel reinforcement cage, the distance between the steel reinforcements is 160 mm, the refractory materials are further tightened through the steel reinforcement cage, the possibility of cracks is reduced, and the convection nozzle body is protected.

The invention provides ironmaking blast furnace gas flow conveying equipment which comprises a blast furnace body, the top of the blast furnace body is provided with a furnace top feeding port and a sealing top cover, a material distribution chute extending into the blast furnace body is rotationally installed on the sealing top cover, and a material preheating bin fixedly sleeves the bottom of the outer side wall of the material distribution chute; the preheating gas pipe penetrates through an inner cavity of the material preheating bin to form a forced channel; when flowing through the inner cavity of the material preheating bin, the blast furnace gas containing waste heat conveyed by the preheating gas pipe is forced to pass through the coke and / or iron ore material layer accumulated in the material preheating bin, and meanwhile, part of the gas is uniformly and dispersedly discharged through the gas distribution micropores in the preheating flashboard. In the coal gas conveying period, when coal gas flows into the material preheating bin and flows into the preheating coal gas pipe, materials falling into the material preheating bin are preheated through waste heat in the coal gas, the contact area of the coal gas and the materials is greatly increased, the preheating effect is improved, subsequent reduction of iron ore is facilitated, and the iron making efficiency is improved.

The utility model discloses a blast furnace charging bucket gas recovery device which comprises a charging bucket, one side of the charging bucket is connected with a dust remover used for filtering gas through a pipeline, one side of the dust remover is connected with a high-pressure clean gas pipe network through a pressure equalizing pipe, and the surface of the high-pressure clean gas pipe network is connected with a low-pressure clean gas outer net through a first connecting pipe. The bottom of the high-pressure clean gas pipe network is connected with a first water tank, the bottom of the low-pressure clean gas outer network is connected with a second water tank, through connection between the multiple water tanks and the pipe network, it is ensured that gas can flow smoothly in the system, the problem of gas leakage is reduced, gas leakage is effectively prevented through the liquid seal principle of a U-shaped pipe, and the service life of the system is prolonged. And the joint of the bleeder and the second water tank is communicated with a low-pressure clean gas outer net through a third connecting pipe, and multiple pipelines work cooperatively, so that the gas can be fully collected and conveyed to a corresponding pipe network, and the gas recovery efficiency is remarkably improved.

The present invention presents a molten iron manufacturing apparatus and a molten iron manufacturing method applied thereto, the molten iron manufacturing apparatus comprising: a storage unit having an accommodation space capable of accommodating a powder raw material; a reduction unit capable of receiving the powder raw material and having a reduction space so as to reduce the powder raw material; and a transfer unit capable of transferring the powder raw material using a transfer gas and installed so as to supply, to the reduction unit, only the powder raw material among the transfer gas and the powder raw material, whereby process efficiency can be improved.

The utility model belongs to the technical field of steel smelting, and particularly relates to a blast furnace gravitational dust removal and ash discharge device which comprises a gravitational dust removal device, a first ash discharge bin and a second ash discharge bin which are symmetrically distributed are arranged at the bottom of the gravitational dust removal device, and the gravitational dust removal device is respectively connected with the first ash discharge bin and the second ash discharge bin through a first pipeline. The top of the first ash discharge bin is connected with the dust remover through a second pipeline, the top of the second ash discharge bin is communicated with the second pipeline through a third pipeline, the second pipeline and the third pipeline are both provided with blow-off ball valves, the first ash discharge bin is connected with the suction and exhaust vehicle through a fourth pipeline, and the second ash discharge bin is communicated with the fourth pipeline through a fifth pipeline; the dust remover is communicated with the fourth pipeline through a sixth pipeline; the whole operation process is simple and convenient; dust raising is avoided in the operation process, and the environment is protected; the labor intensity of workers is reduced; the ash discharging time is saved, and the human resource cost is reduced.

The utility model belongs to the technical field of ironmaking, and particularly discloses a protective device suitable for a molten iron trough of a blast furnace casting house, which comprises a cover head, a cover body and a cover tail, the cover body is formed by connecting a plurality of main frames end to end, each main frame comprises a frame top, frame waists and frame legs, the frame waists are welded on two sides of the frame top, and the frame waists are welded on two sides of the frame top. Frame legs are welded to the frame waists, a clamping groove is fixedly connected to the head end of the main frame, the head ends of the frame top, the frame waists and the frame legs are welded to the clamping groove, a clamping plate is fixedly connected to the tail end of the main frame, and the tail ends of the frame top, the frame waists and the frame legs are welded to the clamping plate. Modularized installation of the molten iron trough protective cover is achieved through the clamping groove and the clamping plate, the molten iron trough protective cover is higher than the ground, the observation window is formed, workers can conveniently observe the flowing condition of the main trough, the dust removal cover is connected to the tail end of the protective cover, and dust removal is more thorough.

The utility model belongs to the field of blast furnace equipment, and relates to a blast furnace gas heating system which comprises a valve of a blast furnace gas pipeline, a cyclone dust collector, a flowmeter, a thermometer, a valve of a flue gas pipeline and a heat exchanger, and a heating gas source is taken from flue gas of a hot blast stove. The system is arranged between a blast furnace gravity dust collector and dry dust collection and serves as a bypass of a normal gas pipeline. When the blast furnace gas is low in temperature and needs to be heated, the flue gas adjusting valve on the hot blast stove flue gas pipeline is opened, high-temperature hot blast stove flue gas enters the heat exchanger, meanwhile, the gas adjusting valve on the heating system pipeline is opened, and the blast furnace gas flows through the heated heat exchanger after passing through the cyclone dust collector, so that the blast furnace gas is heated and then flows to the dry dedusting system. Heated hot-blast stove smoke flows back to the hot-blast stove waste gas pipeline and is discharged through a chimney. Blast furnace gas is heated through hot blast stove flue gas, low-temperature gas is prevented from directly entering a dry-method system, cloth bag hardening is prevented, normal work of the dry-method system is ensured, and the operation stability of a blast furnace system is improved.

An air supply device suitable for a blast furnace coal injection pipeline comprises a sealing part, a butt joint part, an air pump and a filtering part. One end of the butt joint part is in butt joint with the coal injection pipeline, and the other end of the butt joint part is connected with the air pump; the filtering part is connected with an air pump; the sealing part is arranged on the butt joint part; the butt joint part comprises a horn hopper, a cylinder, an annular piece and a butt joint pipe. The large-diameter end of the horn hopper is arranged at one end of the cylinder, and the annular piece is arranged at the other end of the cylinder. The small-diameter end of the horn hopper is in butt joint with the coal injection pipeline in the inclined direction. The butt joint pipe is in butt joint with an inner hole of the annular piece, and the other end of the butt joint pipe is in butt joint with an air outlet hole of the air pump. The air supply device can reliably supply air to the coal injection pipeline, ensures the cleanness of the filter screen, and avoids the damage to the air pump during tempering of the coal injection pipeline.

The invention discloses a circulating blast furnace top gas high-temperature reforming system and method, and relates to the technical field of circulating blast furnaces. The circulating blast furnace top gas high-temperature reforming system comprises a circulating blast furnace, a gasification furnace device, a reformed gas treatment module and a waste heat recovery module, the gasification furnace device is connected with the circulating blast furnace, and the reformed gas treatment module is connected with the gasification furnace device and the circulating blast furnace. The reformer device is configured to receive the reformed gas discharged by the gasifier device, treat the reformed gas and then input the treated reformed gas into the circulating blast furnace; and the waste heat recovery module is configured to receive coal ash discharged by the gasification furnace device and preheat lump coal entering the gasification furnace device by utilizing waste heat of the coal ash. Based on the technical scheme disclosed by the invention, the heat utilization rate in the coal gasification process is remarkably improved, the energy consumption in the coal gas reforming process is reduced, and resource utilization and low-carbon clean development of metallurgical coal gas can be realized.

The invention relates to a blast furnace diffused and recycled coal gas dedusting ash pneumatic conveying device which comprises a furnace top diffused coal gas recycling dust remover, the furnace top diffused coal gas recycling dust remover is connected with a conveying pump through a reducer pipe, an electric gate valve, a first corrugated pipe and a feeding valve, and an exhaust pipe is arranged between the top of the conveying pump and the furnace top diffused coal gas recycling dust remover. One side of the bottom of the delivery pump is connected with a high-pressure power gas pipe, the high-pressure power gas pipe is sequentially provided with a safety valve, a pressure reducing valve, a butterfly valve, a regulating valve, a main pipe electric ball valve and a main pipe check valve, and the other side of the bottom of the delivery pump is connected with a dust removal bin through a fluidization pipeline; a discharge valve, an inflator and a second corrugated pipe are arranged on the fluidization pipeline, a power gas branch pipe is arranged on the high-pressure power gas pipe and connected with the inflator, and a standby gas supply pipe is further arranged on the high-pressure power gas pipe and connected with the conveying pump. Dedusting ash particles form a fluid-like body, and the problem that dry ash is poor in liquidity and cannot be conveyed for a long distance is solved.

The utility model discloses a tandem radial flow type blast furnace gas purification treatment system which is characterized in that filler for purification treatment is controlled to sequentially pass through a plurality of filler areas integrally in a vertical barrel shape and flow from top to bottom in the filler areas, and meanwhile, gas is controlled to sequentially enter the filler areas in an opposite sequence; purification treatment is realized through contact between the filler area and the filler in the filler area along the circumferential periphery in a horizontal runoff manner. The device and the method have the advantages of higher filler utilization efficiency, higher desulfurization efficiency, better effect, convenience in process control, good safety, lower equipment cost and the like, and are particularly suitable for the fine desulfurization process of the blast furnace gas.

The utility model relates to an anti-jamming device for a star-shaped cinder valve of a dust removal system, and relates to the technical field of dust removal systems. The device comprises an ash bin, a gate valve and a star-shaped ash discharging valve which are sequentially arranged from top to bottom, a pup joint is arranged between the gate valve and the star-shaped ash discharging valve, the pup joint is used for communicating the gate valve and the star-shaped ash discharging valve, and the pup joint is connected with the gate valve and the star-shaped ash discharging valve through fasteners. The star-shaped cinder valve has the effects that the disassembly convenience of the star-shaped cinder valve during blockage is improved, and the service life of the star-shaped cinder valve and the service life of the gate valve are prolonged.

The invention relates to a device for increasing blast furnace gas temperature by using hot blast stove waste gas, which comprises a blast furnace top, a dust remover and a dry dedusting system which are connected in sequence, a clean gas main pipe at an outlet of the dry dedusting system is respectively connected with a TRT generator and a clean gas pipe network, and a gas heating mixing tank is additionally arranged on an inlet pipeline of the dry dedusting system. The gas heating mixing tank is connected with the waste gas preheating clean gas device through a preheating clean gas pipeline, the waste gas preheating clean gas device is connected with the clean gas main pipe through a pipeline, and the waste gas preheating clean gas device is sequentially connected with the preheater and the hot blast stove through pipelines. According to the invention, the blast furnace gas discharged from the blast furnace top is heated by using the waste heat of the hot blast furnace exhaust gas, so that the problem that the blast furnace gas temperature does not meet the gas inlet temperature requirement of a dry dedusting system due to low blast furnace top temperature and is forced to diffuse can be solved. And the problems of environmental pollution and the like caused by blast furnace gas diffusion are avoided.

The utility model relates to the technical field of gas recovery, and provides a blast furnace damping-down diffused gas recovery device which comprises a dust removal box, a partition plate, a filter screen, a reverse blowing valve, an exhaust fan and a dust removal cloth bag, the partition plate is arranged in the dust removal box, and the interior of the dust removal box is divided into at least two cavities by means of the partition plate; the filter screen is arranged in the dust removal box, and each cavity of the dust removal box is divided into an air inlet cavity and an air outlet cavity by virtue of the filter screen; each air outlet cavity of the dust removal box is communicated with a blowback valve, and the blowback valves are positioned outside the dust removal box; each air inlet cavity of the dust removal box communicates with an exhaust fan, and the exhaust fans are located outside the dust removal box. The dedusting cloth bag is located outside the dedusting box, and the outlet end of the exhaust fan is communicated with the dedusting cloth bag. By means of the technical scheme, the problems that in the related technology, the filter screen of the recovery device is generally detached after shutdown and then installed for continuous use after being cleaned, time and labor are wasted, and the recovery efficiency can be affected are solved.

The invention discloses a coke blast furnace with a moisture compensation function, and relates to the technical field of coke blast furnaces, the coke blast furnace comprises a hopper, the bottom of the hopper is fixedly connected with the top of a furnace shell, and an anti-precipitation structure, a filtering structure and a cleaning structure are arranged in the furnace shell; the coke blast furnace with the moisture compensation function comprises a filter structure and an anti-precipitation structure, the anti-precipitation structure comprises a thermal expansion frame, a heat conduction sheet, a piston plate and a driven part, and the surface of the piston plate is slidably connected with the inner wall of the thermal expansion frame. Carbon ash and carbon monoxide generated after the coke is strongly combusted can rise under hot air flow in the blast furnace, at the moment, the filter plate in the tuyere area of the blast furnace can filter the carbon ash, active adsorption cotton in the filter plate can adsorb the carbon monoxide, and therefore it is guaranteed that exhausted gas does not contain substances harmful to the human body, and the service life of the blast furnace is prolonged. Therefore, the personal safety of workers is ensured.

The present invention provides a vertical furnace system and method for coordinating the treatment of iron-containing solid waste based on fuel and electric energy, wherein the system includes a gas pipe and a vertical smelting furnace, the vertical smelting furnace includes a fore furnace and a smelting furnace body, the smelting furnace body has a furnace body, a furnace belly and a furnace bottom arranged in sequence from top to bottom; a feeding port for adding materials to the furnace cavity of the smelting furnace body is provided on the upper side of the furnace body; an air enclosure pipe is provided around the furnace belly outside the furnace belly, and a plurality of tuyere connected to the inner cavity of the furnace belly is provided on the air enclosure pipe, plasma generators are installed in at least two tuyere, at least two tuyere are connected to the gas pipe, and the tuyere where the plasma generator is installed and the tuyere connected to the gas pipe are different tuyere; the furnace bottom is connected to the fore furnace. The power and furnace condition of the smelting furnace can be flexibly adjusted during the furnace opening and smelting process, and the system's requirements for the material structure in the furnace are reduced.

This invention provides an energy-saving blast furnace gas temperature regulation device, applied at the blast furnace gas outlet. It includes a gravity dust collector, a radiator, a dust collection bag, and a turbine. The gravity dust collector is connected at one end to the blast furnace gas outlet and at the other end to the radiator, used for preliminary removal of large particulate impurities from the blast furnace gas. The radiator is connected at one end to the gravity dust collector and at the other end to the dust collection bag, used to control the temperature of the blast furnace gas and prevent damage to the dust collection bag. The dust collection bag is connected at one end to the radiator and at the other end to the turbine, used to remove impurities from the blast furnace gas, completing the purification process. The turbine, connected to the dust collection bag, converts the pressure and thermal energy of the blast furnace gas into rotational mechanical energy to drive a generator. This invention effectively regulates the temperature of the blast furnace gas, simultaneously treating the gas and enabling its recycling.

The invention discloses a dust removal and dechlorination pretreatment device of a blast furnace gas purification and desulfurization system, and relates to the technical field of blast furnace gas purification and desulfurization, the dust removal and dechlorination pretreatment device comprises a treatment mechanism, a buffer mechanism comprises a first multi-way pipe and a protective shell, and a pressure sensor is mounted on the outer wall of one input end of a second multi-way pipe; one output end of the second multi-way pipe and the input end of the one-way valve are each provided with a first electric valve, an air storage box is fixed into the reinforcement cage, and a second electric valve is installed at the discharging end of the round pipe. According to the invention, by arranging the buffer mechanism, part of blast furnace gas can be dispersed into the gas storage tank for storage when the blast furnace gas output is greater than the treatment capacity of the dust removal and dechlorination pretreatment device, so that the dust removal and dechlorination pretreatment device is prevented from being impacted by pressure, and the stable operation of the dust removal and dechlorination pretreatment device is further ensured; therefore, the dechlorination effect of the dedusting and dechlorination pretreatment device is ensured, namely the use efficiency of the dedusting and dechlorination pretreatment device is improved.

The invention discloses a blast furnace gas dry method bag type dust collector front temperature adjusting system and method, and the system comprises a gravity dust collector which is connected with a blast furnace through a blast furnace raw gas pipeline, and a gas outlet pipeline of the gravity dust collector is provided with a first four-way assembly and a second four-way assembly; a first air outlet of the first four-way assembly is connected with the cooling heat exchanger through a cooling heat exchanger air inlet pipeline, a second air outlet of the first four-way assembly is connected with the heating heat exchanger through a heating heat exchanger air inlet pipeline, and a third air outlet of the first four-way assembly is connected with a first air inlet of the second four-way assembly through a medium-temperature pipeline. A second air inlet of the second four-way assembly is connected with a cooling heat exchanger air outlet pipeline, a third air inlet of the second four-way assembly is connected with a heating heat exchanger air outlet pipeline, and an air outlet of the second four-way assembly is connected with a dry bag type dust collector air inlet pipeline; a first thermodetector is arranged on the blast furnace raw gas pipeline, and a second thermodetector is arranged on a gas outlet pipeline of the gravity dust collector; and a first regulating valve, a second regulating valve and a third regulating valve are respectively arranged on the cooling heat exchanger air inlet pipeline, the medium-temperature pipeline and the heating heat exchanger air inlet pipeline.