78results about "Dust arresters" patented technology

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 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 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 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.

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 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.

The application discloses a kind of blast furnace top gas downcomer cleaning method and device, method includes the following steps: during blast furnace blowing-off, open the diffuser valve of blast furnace top and the valve on gravity dust collector, dry gas is passed into gas downcomer;Clean through hole is opened on communication pipe, communication pipe is communicated with gas downcomer;Close the valve on gravity dust collector, and stop dry gas into gas downcomer, and cleaning nozzle sprays high-pressure gas to the inner wall of gas downcomer and carries out blowing operation;Stop blowing operation, open the valve on gravity dust collector, and the adherent blown off from the inner wall of gas downcomer falls into gravity dust collector.In blowing operation before starting, the valve on gravity dust collector is closed, can avoid the adherent blown off by gravity dust collector and enter the bag system of blast furnace, when the valve on gravity dust collector is opened, the adherent accumulated in gas downcomer can fall into the bottom of gravity dust collector under the action of pressure and gravity.

The invention discloses a blast furnace system and a control method thereof. The blast furnace system comprises a blast furnace; the dust removal cover covers the blast furnace, and a dust removal pipeline is connected to the dust removal cover; the water slag flushing white elimination cover is connected with the dust removal pipeline through a steam pipeline, and a steam valve is arranged on the steam pipeline; an inlet of the dust removal assembly is connected with the dust removal cover through a dust removal pipeline, an outlet of the dust removal assembly is connected with an exhaust pipeline, and a dust detection device and a dust removal fan are arranged on the exhaust pipeline; an inlet of the dust removal chimney is connected with the exhaust pipeline; the hot-blast stove is connected with the blast furnace through a hot-blast pipeline, and a combustion-supporting air port of the hot-blast stove is connected with an air outlet of the dedusting chimney through a combustion-supporting air pipeline; the combustion-supporting fan is arranged on the combustion-supporting air pipeline; and the controller is electrically connected with the dust detection device and the steam valve, and the controller is configured to control the opening degree of the steam valve according to the dust content. The heat energy utilization rate is greatly improved and the energy consumption of the whole blast furnace system is reduced.

The invention belongs to the technical field of blast furnace smelting, and relates to a blast furnace top dust collecting system which comprises a receiving hopper, a sealing structure and a single dust remover. The sealing structure comprises a modularized frame, a sealing panel, a gap sealing piece and a skip car channel, the modularized frame is installed at the top of the receiving hopper, the modularized frame is covered with the sealing panel, a buffer layer is arranged on the inner side of the sealing panel, and the gap sealing piece is arranged in a gap between the modularized frame and the sealing panel; a skip car channel is arranged at the bottom of the receiving hopper, and a soft curtain or an automatic door system is arranged at an opening of the skip car channel. And the receiving hopper is connected to a single dust remover through a dust removal pipeline. The invention further relates to a blast furnace top dust collecting method. Through the collaborative design of the sealing structure and the single dust remover, the dust collecting efficiency can reach 99% or above, no dust overflows visually, and the working environment is greatly improved.

The invention discloses a blast furnace ironmaking dust removal device and a working method, and belongs to the field of gas pollution treatment.The blast furnace ironmaking dust removal device comprises a shell, a partition plate fixed to the inner wall of the shell, a filter bag fixed to the lower end of the partition plate, an inlet and an outlet, the air supply unit is fixed on one side of the shell, the blowback assembly is located in the shell, the output end of the air supply unit is connected with the input end of the blowback assembly through a pipeline, and the blowback end of the blowback assembly extends into the filter bag; by adopting the design of combining the reverse blowing assembly and the reverse blowing capturing assembly, reverse blowing is carried out from the inside of the filter bag to the outside through the reverse blowing assembly, dust outside the filter bag is removed, meanwhile, negative pressure suction is carried out on the dust removed through reverse blowing through the reverse blowing capturing assembly, and the dust is forcibly taken away from the interior of the dust remover after being subjected to reverse blowing, so that not only is the dust removal efficiency higher, but also the dust removal effect is better. And high-concentration dust can be directly conveyed to a recovery device through an externally-hung negative pressure pipeline, so that the phenomena of long-term accumulation and bridging of the dust in the dust hopper are avoided.

The utility model relates to a novel dry dedusting bin pump, and relates to the technical field of blast furnace dedusting systems. The device comprises a bent pipe connected with a bin body ball valve, a steam pipe used for providing heat guarantee for the interior of the bent pipe is arranged in the bent pipe, the two ends of the steam pipe extend out of the bent pipe, and the steam pipe is communicated with a steam source used for continuously providing steam. The device has the effects that the blockage phenomenon of the ash conveying pipe is reduced, and the temperature of an easily-blocked area is controlled.

The present application belongs to the technical field of metallurgy-iron smelting, and discloses a blast furnace iron smelting equipment and a blast furnace iron smelting process capable of realizing low-carbon smelting and recycling of carbon. The blast furnace iron smelting equipment comprises a blast furnace body, a dust removal system, a heating and pressurizing system, a waste heat utilization and cooling system, and a carbon dioxide separation and treatment system. The flue gas flowing out of the gas outlet of the blast furnace body is dusted by the dust removal system, and then a part of the flue gas is cooled by the waste heat utilization and cooling system and then enters the carbon dioxide separation and treatment system, so as to separate the coal gas and carbon dioxide in the cooled flue gas, and make the separated coal gas enter the heating and pressurizing system, and the separated carbon dioxide is heated by the waste heat utilization and cooling system and then enters the heating and pressurizing system. Another part of the flue gas after being dusted by the dust removal system is used for the operation of the heating and pressurizing system, so as to heat and pressurize the carbon dioxide and coal gas entering the heating and pressurizing system and then send them into the inside of the blast furnace body.

The application discloses a blast furnace iron notch dust removal system control method and device, electronic equipment and storage medium, including: when receiving the blow signal and drill rod driving signal, control the first dust removal machine to run at the first rotating speed, receive the temperature detected by the temperature sensor in each area, control the rotating speed of the first dust removal machine, the second dust removal machine and the third dust removal machine according to the temperature in each area, when receiving the iron notch blocking signal, control the first dust removal machine, the second dust removal machine and the third dust removal machine to stop running according to the temperature in each area, realize the determination of each stage and state of the blast furnace iron notch tapping through the temperature detected by the temperature sensor, control the first dust removal machine, the second dust removal machine and the third dust removal machine to run and stop running at different rotating speeds, can associate and control each stage, temperature and rotating speed of the dust removal machine in the tapping process, achieve the purpose of reducing the power consumption of the dust removal machine, and manual control of the dust removal machine is not needed, and the intelligent degree is improved.

The system comprises a blast furnace, a direct reduction area and an indirect reduction area, a gas outlet of the blast furnace is sequentially connected with a gas purifier, a separator and a combustor, a separated gas outlet of the separator is connected with a carbon dioxide storage tank, a heat exchange pipe is arranged in the combustor, and the heat exchange pipe is connected with the direct reduction area and the indirect reduction area. An oxygen storage tank, a water electrolysis device, a reactor and a pre-reducer are arranged on the outer side of the blast furnace, a gas outlet of the combustor, a gas outlet of the water electrolysis device and a gas outlet of the carbon dioxide storage tank are all communicated with a gas inlet of the reactor through pipelines, and the bottom of the pre-reducer is communicated with the top of the blast furnace. A gas outlet of the pre-reducer is communicated with a gas outlet of the blast furnace, the water electrolysis device is communicated with an inlet of the heat exchange pipe, and the smelting process comprises the steps of pre-reduction reaction, blast furnace iron making, carbon monoxide circulation, carbon dioxide circulation, slag iron discharging and the like. The method has the advantages of capability of realizing decarburization circulation of the blast furnace gas, small environmental pollution, energy conservation, consumption reduction, greenness and low carbon.

The utility model relates to the technical field of blast furnace dust removal, and discloses a dust removal device for a blast furnace, which comprises a dust remover main body and an air inlet box, an adjusting mechanism is arranged in the air inlet box, and a protection mechanism is arranged on the inner wall of the bottom of the air inlet box; the adjusting mechanism comprises an electric push rod, the bottom end of the electric push rod is fixedly connected to the inner wall of the bottom of the air inlet box, the driving end of the electric push rod is fixedly connected with a vertical rod, the front end of the vertical rod is fixedly connected with a plurality of square frames, and the inner wall of the air inlet box is rotationally connected with a plurality of rotating rods. And the outer part of the rotating rod is fixedly connected with a flow guide plate. According to the utility model, the electric push rod pushes the vertical rod and drives the square frame at the front end to ascend, and finally drives the flow guide plate to change the angle, so that the direction and the flow rate of airflow in the air inlet box are flexibly adjusted according to actual requirements, dust-containing gas enters the dust remover main body more uniformly and stably, and the dust removal efficiency is improved.

The utility model belongs to the technical field of ironmaking dust removal, and particularly relates to a blast furnace ironmaking dust removal device. Comprising a circular box, a supporting mechanism is arranged at the bottom of the circular box, pipelines fixedly communicate with the left side of the bottom and the left side of the top of the circular box, a discharge pipe fixedly communicates with the right side of the bottom of the circular box, and an opening is formed in the right side of the top of the circular box; the square mounting block is rotationally assembled in the circular box body; the mounting box body is fixedly mounted on the right side of the top of the circular box body and is matched with the opening in position; the telescopic end of the air cylinder extends into the mounting box body and is fixedly connected with the spraying mechanism; according to the utility model, the structure is simple, the design is reasonable, the two filter plates can be conveniently and alternately used during use, the influence on the dust removal efficiency due to long-time shutdown is effectively avoided, the used filter plates do not need to be cooled and disassembled when being cleaned, the spray mechanism can be used for directly flushing, and the operation is convenient.

The utility model relates to the technical field of blast furnace top dust removal, and particularly provides a dust removal device for diffused flue gas of an iron-making blast furnace top charging bucket, which is characterized in that a driving motor is started, a connecting block is fixedly connected with the driving motor and rotates together with the driving motor, so that a connecting sleeve and a filter screen barrel are driven to rotate together with the connecting sleeve; due to the fact that the filter screen barrel continuously rotates and the air inlet is fixed, the filter face continuously changes positions, the purpose of flue gas dust removal is achieved, and the filter screen barrel is taken out of the connecting block, so that the filter screen barrel is convenient to disassemble, clean and replace, and the dust removal efficiency is improved.

The invention relates to a blast furnace gas carbon capture and sintering machine head ash treatment process and device, and the process comprises the following steps: S1, carrying out absorption treatment on blast furnace gas by using a lean amine solution as an absorbent to obtain a rich amine solution; s2, mixing the amine-rich liquid with the sintering machine head ash, and removing precipitates after a first precipitation reaction to obtain a first filtrate; s3, a heavy metal trapping agent and a flocculating agent are added into the first filtrate, precipitates are removed after a second precipitation reaction, and second filtrate is obtained; s4, the second filtrate is subjected to evaporative crystallization, and amine steam and inorganic salt are recycled. According to the method, CO2 in the amine-rich liquid is removed through the sintering machine head ash, steam loss is avoided, the carbon capture cost is reduced, meanwhile, alkali needed in traditional machine head ash treatment is replaced with the amine-rich liquid, the dosage of heavy and impurity removal agents is reduced, and the cost is greatly reduced.

The invention discloses an intelligent blast furnace dust removal system, and relates to the technical field of environmental protection equipment.The blast furnace dust removal system comprises a scrubber body and a gas inlet pipe, the side edge of the scrubber body is connected with the gas inlet pipe used for conveying dusty gas, the blast furnace dust removal system further comprises a washing unit, and the washing unit comprises a liquid conveying pipe; the side edge of the air inlet pipe is connected with a liquid conveying pipe, the end, located in the air inlet pipe, of the liquid conveying pipe is rotationally connected with a spraying pipe in a sealed mode, and a plurality of impellers are evenly arranged on the outer walls of the two ends of the spraying pipe in the circumferential direction of the spraying pipe. The dust-containing gas provides driving force for the impeller and the spraying pipe, so that the spraying pipe uniformly sprays the dust-containing gas; when dust-containing gas needs to be subjected to semi-fine dust removal treatment, the dust-containing gas in the gas inlet pipe blows the impeller to drive the spraying pipe to rotate, the washing liquid is sprayed into the gas inlet pipe through the spraying pipe, and the washing liquid is sprayed in all directions through the rotating spraying pipe, so that the spraying dust removal effect on the dust-containing gas is improved.

The utility model provides a blast furnace gas damping-down, reblowing and diffusing recovery processing system which comprises a first recovery pipeline, a second recovery pipeline and a third recovery pipeline. The two ends of the first recovery pipeline are connected with a blast furnace top and a high-pressure clean gas pipeline respectively; two ends of the second recovery pipeline are respectively connected with the blast furnace top and the low-pressure clean gas pipe network; the first dust remover group is arranged on the first recovery pipeline; the second dust remover group is arranged on the second recovery pipeline; the two ends of the collecting pipeline are connected with the first recycling pipeline and the second recycling pipeline respectively, the joint of the collecting pipeline and the first recycling pipeline is located at the downstream of the first dust remover set, the joint of the collecting pipeline and the second recycling pipeline is located at the downstream of the second dust remover set, and the collecting pipeline is provided with a first valve set which is opened when the blast furnace is in the blowing-down and reblowing process; and the at least one ejector is arranged on the first recovery pipeline and / or the second recovery pipeline and used for being started when the blast furnace stops and reblows. Gas and smoke entering the atmosphere in the blowing-down and reblowing process of the blast furnace are reduced to the maximum extent, pollution is reduced, and environment-friendly production is achieved.

The present application relates to the field of blast furnace ironmaking, and particularly relates to a blast furnace torpedo ladle iron flow guiding device and method, the tundish comprises a frame, a cover plate, a siphon pipe and a flow guide pipe, the top of the frame is provided with the cover plate, the number of the siphon pipes is two, and the siphon pipes are symmetrically arranged on the two sides of the cover plate, the upper end of each siphon pipe extends out of the cover plate and is connected with one end of a corresponding fan through a pipeline, the lower end of each siphon pipe extends into the frame through the cover plate, the bottom of the frame is provided with two through holes, each flow guide pipe passes through a through hole, the upper end of each flow guide pipe extends into a corresponding siphon pipe, and the lower end of each flow guide pipe extends out of the frame, and the torpedo ladle is located below the corresponding flow guide pipe. The present application has the advantages that: by arranging the vertical flow guide pipe at the bottom of the tundish, the molten iron is directly guided above the torpedo ladle opening, the problem of molten iron scattering caused by the parabolic form of the molten iron falling in the traditional tundish is avoided, and the accuracy of the molten iron guiding is significantly improved.

The invention relates to the technical field of metallurgical dust removal systems, in particular to a blast furnace gas dry dust removal self-circulation unconstrained filter bag ash removal system and a process thereof. The ash removal system comprises a blast furnace gas dry dust remover, a dust remover inlet branch pipe connected with an inlet of the dust remover, a dust remover inlet header pipe connected with the dust remover inlet branch pipe, a clean gas outlet pipeline connected with an outlet of the dust remover, and a dust remover gas outlet header pipe connected with the clean gas outlet pipeline. The ash removal system branch pipeline is connected with the dust remover barrel or the clean gas outlet pipeline, an energy self-circulation control mechanism, an ash removal system header pipe connected with the ash removal system branch pipeline, and an outer net gas pipeline connected with the ash removal system header pipe and the dust remover gas outlet header pipe are mounted on the ash removal system branch pipeline. Through self-circulation control of the potential energy and the quantity energy of the coal gas, flexible ash removal is realized, the ash film of the filter bag is kept complete, the ash removal is thorough, the ash removal time is short, the ash removal interval time is long, and the filter area of the dust remover is maximized.

The invention relates to the technical field of rock drill blowing atomization, in particular to an integrated blast furnace tapping machine rock drill blowing atomization device which comprises a filtering assembly arranged at the top of the outer surface of a drilling machine and an oil conveying assembly arranged at the top of the outer surface of the drilling machine. The filtering assembly comprises an atomizing nozzle, the outer surface of the atomizing nozzle is sleeved with a plurality of sealing rings, the top of the outer surface of the drilling machine is fixedly connected with a liquid box, one side of the outer surface of the liquid box is fixedly connected with a liquid extraction pump, a liquid feeding pipe is arranged in the liquid extraction pump, and a filtering plate is arranged in the liquid feeding pipe; a plurality of filtering holes are formed in the filtering plate, and a turbine plate is arranged in the liquid feeding pipe; the invention aims to solve the problems that impurities in a liquid feeding pipeline can directly enter a spray head, so that an atomization hole and a nozzle core are blocked; and the sealing ring depends on the wear resistance of the material of the sealing ring, so that the problem that compressed air leaks easily due to friction heating and aging acceleration between the sealing ring and the contact surface during operation is solved.

The utility model discloses an adjustable tuyere of a blast furnace, which belongs to the technical field of steel-making blast furnaces and comprises a steel-making blast furnace, a hearth, a furnace lining, a hot air pipe, an air supply outlet, a tuyere large sleeve, a tuyere medium sleeve and a tuyere small sleeve, the hearth is arranged in the steel-making blast furnace, the furnace lining is arranged in the inner wall of the steel-making blast furnace, and the tuyere large sleeve is mounted at the tuyere of the steel-making blast furnace through a support. A tuyere medium sleeve is installed on one side of the tuyere large sleeve through bolts, a tuyere small sleeve is installed on one side of the tuyere medium sleeve through bolts, a hot air pipe is arranged outside the steelmaking blast furnace, and the end of the hot air pipe is connected with an air supply outlet through a high-temperature-resistant hose. The adjusting mechanism is arranged, the electric cylinder, the air supply rubber ring, the high-temperature-resistant elastic connecting face and the heat insulation cover are used in cooperation, the size of the air outlet of the air port can be adjusted according to requirements, the air outlet amount is effectively controlled, and the steel making work has pertinence.

The utility model relates to a coal gas dust removal device for a blast furnace, which comprises the blast furnace and a dust remover, a transfer mechanism is arranged between the blast furnace and the dust remover, the transfer mechanism is provided with a filter mechanism, the transfer mechanism comprises a filter bin, the filter bin is arranged between the blast furnace and the dust remover, and the filter bin is provided with a fan and a discharge pipe. An outlet of the fan communicates with a connecting pipe with one end communicating with the dust remover, an inlet of the fan communicates with an extraction pipe communicating with the filtering bin, and the extraction pipe is provided with a first electromagnetic valve and a fresh air pipe. According to the coal gas dust removal device for the blast furnace, through the arrangement of the transfer mechanism, when the transfer mechanism normally operates, coal gas generated in the blast furnace can enter the dust remover after being pre-filtered by the filtering mechanism, so that the dust content of the coal gas is reduced, and the use efficiency and effect of the dust remover are improved; and the filtering mechanism is cleaned, so that the complexity of manual cleaning is avoided, and the gas transportation efficiency is improved.

The invention relates to the technical field of metallurgical industry systems, in particular to a coke ore separation and dust removal system for a blast furnace ironmaking plant, which comprises an ore powder dust removal and collection system, a coke powder dust removal and collection system and a dust remover, the coke powder dedusting and collecting system is connected to an air inlet of an ash hopper of the deduster through a pipeline; and an outlet of the deduster is connected with an induced draft system, a mineral powder conveying system and a coke powder conveying system. The mineral powder conveying system and the coke powder conveying system are divided into two sets of independent systems and share one set of dust remover, dust removal box bodies can be reasonably distributed according to the air volume of the two sets of dust removal pipeline systems, optimal configuration of the whole set of dust remover is achieved, and centralized control over the whole set of dust removal system is facilitated; the investment cost and the operation and maintenance cost of dust removal system transformation are further saved; the mineral powder and the coke powder are independently recycled, so that the energy consumption of dust removal equipment during sintering and recycling of the fly ash can be reduced, and the utilization values of the mineral powder and the coke powder can be maximized.

The invention relates to the field of metallurgical engineering, and discloses a blast furnace high-strength smelting energy-saving device and a using method thereof.The blast furnace high-strength smelting energy-saving device comprises a front pipeline, a rear pipeline is arranged at one end of the front pipeline, a filter screen is arranged in the middle of the inner wall of the front pipeline, and a finned heat exchanger and a cleaning assembly are arranged on one side of the interior of the front pipeline; the front pipeline is arranged at the top end of the front pipeline and used for periodically cleaning particulate matter on the surface of a filter screen to avoid blockage, the descaling assembly is arranged at the top of the inner wall of the front pipeline and used for spraying descaling liquid to the surface of the finned heat exchanger and removing water scale, and the heat storage assembly is arranged on the inner wall of the rear pipeline and used for storing heat in the rear pipeline. The device is used for storing waste heat when the smoke temperature exceeds a set value, and the energy-saving effect is improved. By means of the heat storage assembly, the gas still having the high temperature after heat exchange can pass through the heat storage channel, the heat in the gas is stored through the ceramic heat storage body, and therefore the heat in smoke is fully recycled, and the energy-saving effect is improved.

The invention belongs to the technical field of blast furnace ironmaking, and particularly discloses a HyCROF blast furnace injection gas adjusting system which comprises a blast furnace and a PLC, the air inlet end of the blast furnace communicates with a tuyere small sleeve and communicates with a hot blast stove through the tuyere small sleeve, and a dust removal system and a decarburization system are connected to the blast furnace in series. A gas inlet valve, a filter, an outlet valve, a flow meter and a pressurizing machine are connected in series with an outlet of the decarburization system and the coke oven gas pipe, the pressurizing machine is communicated with the hot blast stove, and the flow meter is electrically connected with the PLC. In order to solve the problem of low reduction reaction efficiency in a furnace caused by oxygen-coal ratio imbalance due to gas composition and flow fluctuation in a traditional blast furnace ironmaking system, the method comprises the following steps: detecting the flow of decarburized gas and coke oven gas in real time, calculating the oxygen supply amount of theoretical mixed gas and adjusting the opening degree of an oxygen valve; therefore, the problems of low reduction reaction efficiency and high energy consumption in the furnace caused by deviation between the pressure, the flow and the components of the hot coal gas injected by the tuyere small sleeve and the actual demand quantity are solved.

This utility model discloses a blast furnace pulverized coal injection waste gas treatment device, relating to the field of waste gas treatment technology. It includes an inlet pipe, a connecting flange fixedly connected to one side of the outer surface of the inlet pipe, a regulating valve fixedly connected to one side of the connecting flange, a first connecting pipe fixedly connected to one end of the regulating valve, a high-temperature treatment component on one side of the first connecting pipe, a cooling component on one side of the inlet pipe, and a purification component on the side of the inlet pipe. This utility model, by setting up a high-temperature treatment component, allows the coarse grid plate installed in the pretreatment box to separate larger particle sizes in the waste gas. The separated large particle sizes enter the filter box where they are further filtered by ceramic fiber plates. Through the purification component, the filter bags in the waste gas intercept and filter the particulate matter, and finally, the activated carbon adsorption plate removes harmful gases and organic pollutants from the waste gas, improving the waste gas treatment effect.