A blast furnace gas purification device

Abstract

This utility model relates to the field of blast furnace gas purification technology, specifically a blast furnace gas purification device. It includes a pulse dust collector with a horizontally fixed partition dividing it into an outlet chamber and a dust collection chamber. Multiple through holes are evenly distributed on the partition. The outlet chamber has an outlet, and the dust collection chamber has a dust inlet on one side. Multiple filter cartridges are fixed in the dust collection chamber, corresponding one-to-one with the through holes. The upper end of each filter cartridge is connected to one of the through holes. A pulse assembly in the outlet chamber is used to spray air onto each filter cartridge. A feed pipe is fixed in the dust collection chamber below the filter cartridges. Inclined plates are symmetrically fixed on both sides of the feed pipe, with the higher end of the plates fixedly connected to the inner wall of the pulse dust collector. A vibration motor is installed on the lower surface of each inclined plate, and a pull-out collection box is located below the feed pipe. This utility model has advantages such as higher efficiency and ensuring thorough cleaning of the bottom dust.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace gas purification technology, specifically a blast furnace gas purification device. Background Technology

[0002] Blast furnace gas purification involves equipment and operations that remove harmful substances such as dust, sulfur, chlorine, fluorine, and cyanide from blast furnace gas. Existing purification processes mainly include dust removal, heat exchange, and removal of harmful gases. Dust removal specifically involves removing dust from the blast furnace gas.

[0003] To address this, a patent document discloses a pulse-jet cartridge dust collector (application number: CN202020038497.7), comprising a protective tank, a bottom plate, and a pulse valve. Guide plates are symmetrically welded to both sides of the lower surface of the protective tank. Side gears are connected to a stirring rod via a belt, and the stirring rod is rotatably connected to the lower interior of the protective tank. The bottom plate is fixedly connected to the lower interior of the protective tank, and a partition is welded to its lower surface. The pulse valve is installed on the upper left side of the protective tank. A top plate is fixedly installed on the upper interior of the protective tank, and a fiber filter cartridge is movably connected to the lower end of the top plate. The upper surface of the fiber filter cartridge has a side groove, and a through groove is pre-reserved inside the bottom plate. While the aforementioned patent document allows dust to be discharged into the bottom of the tank and then conveyed out of the tank by the stirring rod, the efficiency of discharging dust via the stirring rod is low, and the dust at the bottom cannot be thoroughly cleaned. Utility Model Content

[0004] In view of this, the present invention provides a blast furnace gas purification device, which aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace gas purification device, comprising:

[0006] A pulse dust collector has a horizontally fixed partition inside, which divides the dust collector into an air outlet chamber and a dust removal chamber. The partition has multiple through holes evenly distributed on it. The air outlet chamber has an air outlet, and the dust removal chamber has a dust inlet on one side.

[0007] Multiple filter cartridges are fixed in the dust removal chamber and correspond one-to-one with multiple through holes. The upper end of each filter cartridge is connected to the through hole. The pulse component in the air outlet chamber is used to spray air onto each filter cartridge.

[0008] The feeding pipe is fixed in the dust removal chamber below the filter cylinder. Inclined plates are symmetrically fixed on both sides of the feeding pipe, and the higher end of the inclined plates is fixedly connected to the inner wall of the pulse dust collector. A vibration motor is provided on the lower surface of each inclined plate. A pull-out collection box is provided below the feeding pipe.

[0009] A heat exchanger, which is connected to an air outlet via an inlet pipe, is used to exchange heat with the gas after dust removal.

[0010] The purification chamber has an air inlet connected to a heat exchanger via an exhaust pipe, used to purify harmful gases in the gas after heat exchange.

[0011] A further improvement of this utility model is that the pulse assembly includes multiple pulse main pipes, which are horizontally fixed in the air outlet chamber, and multiple pulse branch pipes are fixed on them. The multiple pulse branch pipes correspond one-to-one with multiple filter cartridges, and an air storage tank is provided at the end of the pulse main pipe.

[0012] A further improvement of this utility model is that a baffle is fixedly provided on one side of the dust inlet in the dust removal chamber, and there is a gap between the baffle and the dust inlet.

[0013] A further improvement of this utility model is that a leveling component is provided between the feeding pipe and the collecting box, the leveling component comprising:

[0014] The first screw is horizontally positioned between the feed pipe and the collection box, and rotates under the drive of the first motor;

[0015] A flat plate is horizontally positioned between the feed pipe and the collection box, and is threadedly connected to and passes through the first screw.

[0016] A further improvement of this utility model is that the purification box includes:

[0017] A horizontal plate is fixed inside the purification chamber, dividing it into a mixing chamber and a spraying chamber. The air inlet is located in the spraying chamber, while the mixing chamber has a water inlet and a reagent inlet.

[0018] A stirring assembly, disposed within the stirring chamber, is used to stir water and pharmaceuticals;

[0019] A spray assembly is located in a spray chamber above the air inlet, and the spray assembly is connected to the mixing chamber through a water inlet pipe.

[0020] An exhaust port is located inside the spray chamber above the spray assembly, and an activated carbon filter plate is fixed on the exhaust port.

[0021] A further improvement of this invention is that the stirring assembly includes:

[0022] A stirring shaft is disposed inside the stirring chamber, and a stirring paddle is fixed on it;

[0023] A rotating assembly, connected to the stirring shaft, is used to drive the stirring shaft to rotate;

[0024] The lifting assembly is connected to the rotating assembly and the stirring shaft respectively, and is used to drive the stirring shaft to lift and lower, and the stirring shaft rotates continuously during lifting and lowering.

[0025] A further improvement of this utility model is that the rotating assembly includes:

[0026] A rotating sleeve is mounted on the purification box and is coaxial with the stirring shaft. The guide groove on the rotating sleeve is slidably connected to the guide key fixed on the stirring shaft along its circumferential direction.

[0027] The second motor is fixed on the purification box, and the first gear fixed on the power output end of the second motor meshes with the second gear fixed on the rotating sleeve.

[0028] A further improvement of this utility model is that the lifting assembly includes:

[0029] The first rotating shaft is parallel to the stirring shaft and is mounted on the purification box. The first rotating shaft is provided with a reciprocating thread section, and the third gear fixed on the first rotating shaft meshes with the first gear.

[0030] The lifting plate has its first end connected to the upper rotating shaft of the stirring shaft, and its second end threadedly connected to and passing through the first rotating shaft.

[0031] A further improvement of this utility model is that the spray assembly includes:

[0032] A spray box is fixedly installed in the spray chamber below the exhaust port. The interior of the spray box is connected to the water inlet pipe. Multiple spray nozzles connected to the interior of the spray box are fixedly installed at the lower end of the spray box.

[0033] A vent pipe is vertically fixed to the spray chamber above the spray box, with its lower end penetrating the spray box.

[0034] A further improvement of this utility model is that the reciprocating thread section includes two thread grooves with the same pitch and opposite directions of rotation, and the two ends are connected by a transition curve.

[0035] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0036] This invention provides a blast furnace gas purification device. The inclined plate design on both sides of the feeding pipe and the installation of the vibrating motor facilitate the rapid and smooth sliding of dust into the feeding pipe and into the collection box. This design avoids dust accumulation inside the equipment, making it convenient for centralized collection and cleaning of dust. Compared with existing technologies, it is more efficient and ensures that the dust at the bottom is thoroughly cleaned.

[0037] In this invention, multiple filter cartridges correspond one-to-one with the through holes on the baffle, allowing blast furnace gas to pass through the filter cartridges fully for filtration, effectively intercepting dust in the gas and achieving good dust removal results. Simultaneously, the pulse assembly's jet cleaning method for the filter cartridges promptly removes dust from the outer wall of the filter cartridges, ensuring filtration efficiency and improving the overall dust removal effect.

[0038] In this invention, the collection box adopts a pull-out design, making it convenient for staff to regularly remove the collection box for dust cleaning, and the operation is simple and convenient. Moreover, the various components of the entire system are relatively independent, which facilitates inspection and maintenance when equipment failure occurs, reducing maintenance costs and difficulty. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall structure of the blast furnace gas purification device described in this utility model;

[0041] Figure 2 This is a schematic diagram of the pulse component of the blast furnace gas purification device described in this utility model;

[0042] Figure 3 This is a schematic diagram of the leveling component of the blast furnace gas purification device described in this utility model;

[0043] Figure 4 This is a schematic diagram of the rotating components of the blast furnace gas purification device described in this utility model;

[0044] Figure 5 This is a schematic diagram of the spray assembly of the blast furnace gas purification device described in this utility model.

[0045] Explanation of reference numerals in the attached figures:

[0046] 10-Pulse dust collector box, 101-Dust inlet, 102-Baffle, 11-Partition plate, 111-Through hole, 12-Filter cartridge, 13-Feed pipe, 131-Inclined plate, 132-Vibration motor, 14-Collection box, 15-Heat exchanger, 151-Inlet pipe, 161-Extraction pipe, 20-Pulse assembly, 21-Pulse main pipe, 22-Pulse branch pipe, 23-Air storage tank, 30-Leveling assembly, 31-First screw, 32-First motor, 33-Leveling plate, 40-Purification Box, 401-Water inlet, 402-Chemical inlet, 41-Horizontal plate, 42-Agitator shaft, 421-Guide key, 43-Agitator paddle, 44-Activated carbon filter plate, 50-Rotating assembly, 51-Rotating sleeve, 511-Second gear, 52-Second motor, 53-First gear, 54-First rotating shaft, 541-Reciprocating thread section, 55-Third gear, 56-Lifting plate, 60-Spray assembly, 61-Spray box, 62-Water inlet pipe, 63-Spray head, 64-Aeration pipe. Detailed Implementation

[0047] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details hindering the description of the present invention.

[0048] This utility model provides a blast furnace gas purification device, which is described in conjunction with the appendix to the instruction manual. Figure 1 To be continued Figure 5 It can be seen that a blast furnace gas purification device mainly includes the following parts or components: pulse dust collector 10, filter cartridge 12, feed pipe 13, heat exchanger 15, and purification box 40.

[0049] In this invention, a partition 11 is horizontally fixed inside the pulse dust collector 10, dividing the dust collector into an air outlet chamber and a dust collection chamber. Multiple through holes 111 are evenly distributed on the partition 11. The air outlet chamber has an air outlet (not shown in the figure), and a dust inlet 101 is provided on one side of the dust collection chamber. Multiple filter cartridges 12 are fixedly disposed in the dust collection chamber and correspond one-to-one with the multiple through holes 111. The upper end of each filter cartridge 12 is connected to the through hole 111. The pulse assembly 20 in the air outlet chamber is used to spray air onto each filter cartridge 12. A feed pipe 13 is fixedly disposed below the filter cartridge 12. The square dust removal chamber has inclined plates 131 symmetrically fixed on both sides of the feed pipe 13, and the higher end of the inclined plate 131 is fixedly connected to the inner wall of the pulse dust removal box 10. Each inclined plate 131 has a vibration motor 132 on its lower surface. A pull-out collection box 14 is provided below the feed pipe 13. The heat exchanger 15 is connected to the air outlet through the air inlet pipe 151 and is used to exchange heat with the gas after dust removal. The air inlet (not shown in the figure) on the purification box 40 is connected to the heat exchanger 15 through the air extraction pipe 161 and is used to purify the harmful gases in the gas after heat exchange.

[0050] Blast furnace gas enters the dust removal chamber of the pulse dust collector 10 through the dust inlet 101 on one side of the dust removal chamber. After entering the dust removal chamber, the blast furnace gas is filtered through the filter cartridge 12. Dust in the gas is intercepted on the outer wall of the filter cartridge 12, while the gas that has undergone preliminary filtration passes through the inside of the filter cartridge 12 and then through the through hole 111 on the partition plate 11 into the gas outlet chamber. The gas after dust removal enters the heat exchanger 15 through the gas outlet of the gas outlet chamber and the gas inlet pipe 151. In the heat exchanger 15, the gas exchanges heat with the heat exchange medium to achieve heat exchange treatment of the gas and bring the gas temperature to a suitable range. The gas after heat exchange enters the gas inlet of the purification box 40 through the exhaust pipe 161 from the heat exchanger 15. In the purification box 40, harmful gases (such as sulfur, chlorine, fluorine, cyanide, etc.) in the gas are removed, and the purified gas finally meets the emission standards or subsequent use requirements.

[0051] After a period of dust removal, the filter cartridge 12 is cleaned. The pulse assembly 20 sprays high-pressure gas instantaneously, causing the filter cartridge 12 to vibrate, thereby shaking off the dust adhering to the outer wall of the filter cartridge 12. This pulse jet method can effectively clean the dust on the filter cartridge 12, ensuring the filtration effect of the filter cartridge 12. The shaken-off dust will fall downwards. Since inclined plates 131 are symmetrically fixed on both sides of the feed pipe 13, and the higher end of the inclined plates 131 is fixedly connected to the inner wall of the pulse dust collector 10, the dust will slide down the inclined plates 131 into the feed pipe 13. At the same time, each inclined plate 131 has a vibration motor 132 on its lower surface. The vibration generated by the vibration motor 132 can promote the dust to slide down the feed pipe 13 faster and more smoothly, avoiding the accumulation of dust on the inclined plates 131. Finally, the dust falls into the pull-out collection box 14 below through the feed pipe 13, which facilitates centralized processing and cleaning of the dust, can clean the dust more efficiently, and can ensure that the dust at the bottom is cleaned.

[0052] As one embodiment, in conjunction with the appendix to the specification Figure 2 It can be seen that the pulse assembly 20 includes multiple pulse main pipes 21, which are horizontally fixed in the air outlet chamber, and multiple pulse branch pipes 22 are fixed on them. The multiple pulse branch pipes 22 correspond one-to-one with multiple filter cartridges 12. The end of the pulse main pipe 21 is provided with an air storage tank 23.

[0053] The pulse main pipe 21 is connected to an air storage tank 23, which stores high-pressure gas. When a dust cleaning operation is required, the air storage tank 23 supplies high-pressure gas to the pulse main pipe 21. When the high-pressure gas reaches the pulse branch pipe 22, it is instantly injected into the corresponding filter cartridge 12. The high-pressure gas ejected from the pulse branch pipe 22 causes a sudden increase in pressure inside the filter cartridge 12, resulting in vibration of the filter cartridge 12. This vibration causes dust adhering to the outer wall of the filter cartridge 12 to fall off, effectively improving the efficiency of dust removal.

[0054] As one embodiment, in conjunction with the appendix to the specification Figure 1 It is known that a baffle 102 is fixedly installed on one side of the dust inlet 101 in the dust removal chamber, and there is a gap between the baffle 102 and the dust inlet 101. The baffle 102 can directly block some of the larger and heavier particles in the blast furnace gas, so that these large particles change their direction of movement at the baffle 102 under the action of inertia and separate from the airflow, preventing them from directly entering the filter cartridge 12 area and reducing the filtration burden of the subsequent filter cartridge 12.

[0055] In this embodiment, refer to the appendix to the specification. Figure 3 It is known that a leveling component 30 is provided between the feeding pipe 13 and the collection box 14. The leveling component 30 includes a first screw 31, which is horizontally arranged between the feeding pipe 13 and the collection box 14 and rotates under the drive of the first motor 32; the leveling plate 33 is horizontally arranged between the feeding pipe 13 and the collection box 14 and is threadedly connected to and passes through the first screw 31.

[0056] The first motor 32 outputs power to drive the first screw 31 connected to it to rotate. When the first screw 31 rotates, the leveling plate 33 moves horizontally along the first screw 31. Since the rotation direction of the first screw 31 is controlled by the first motor 32, the leveling plate 33 can move horizontally back and forth under the drive of the first screw 31. As the leveling plate 33 moves horizontally, it levels the dust accumulated in the collection box 14. The leveling plate 33 will flatten areas with higher dust accumulation, keeping the dust surface in the collection box 14 relatively flat. When the leveling plate 33 moves to one end of the collection box 14, the first motor 32 can reverse, causing the first screw 31 to rotate in the opposite direction, driving the leveling plate 33 to move back, continuing to level the dust, and so on in a cycle. By leveling the dust using the leveling component 30, the dust inside the collection box 14 can be piled up more compactly and evenly, thereby improving the space utilization of the collection box 14, reducing space waste caused by irregular dust accumulation, extending the service life of the collection box 14, and reducing the frequency of dust cleaning.

[0057] Specifically, the first motor 32 is a forward and reverse rotating motor.

[0058] As one embodiment, in conjunction with the appendix to the specification Figure 4 Appendix Figure 5It can be seen that the purification box 40 includes a horizontal plate 41, which is fixedly installed horizontally inside the purification box 40 and divides the purification box 40 into a stirring chamber and a spraying chamber. The air inlet is on the spraying chamber. The stirring chamber is provided with a water inlet 401 and a chemical inlet 402. The stirring component is located in the stirring chamber and is used to stir water and chemicals. The spraying component 60 is located in the spraying chamber above the air inlet (not shown in the figure). The spraying component 60 is connected to the stirring chamber through a water inlet pipe 62. The exhaust port (not shown in the figure) is located in the spraying chamber above the spraying component 60. An activated carbon filter plate 44 is fixed on the exhaust port.

[0059] After heat exchange in heat exchanger 15, the gas enters the spray chamber of purification box 40 through exhaust pipe 161. In the mixing chamber, water enters through water inlet 401, and the reagent enters through reagent inlet 402. The mixing component starts working, thoroughly mixing the water and reagent entering the mixing chamber, so that the reagent is evenly dissolved in the water, forming a mixed solution with a purifying effect. The evenly mixed solution is transported to spray assembly 60 through water inlet pipe 62. Spray assembly 60 sprays the mixed solution, and the harmful gas comes into full contact with the sprayed mixed solution and reacts, thereby removing the harmful gas components. The gas after spray treatment continues to rise and reaches the exhaust port above spray assembly 60. Activated carbon has a rich pore structure and a large specific surface area, which can adsorb the small amount of residual harmful gas, odor and some small particulate matter in the gas. When the gas passes through activated carbon filter plate 44, these impurities are adsorbed on the surface of activated carbon, further purifying the gas. After undergoing dual purification treatment by spraying and activated carbon, the gas is discharged from the exhaust port into the purification chamber 40. At this point, the content of harmful gases in the gas has been significantly reduced, meeting emission standards or requirements for subsequent use.

[0060] In this embodiment, refer to the appendix to the specification. Figure 4 It is known that the stirring assembly includes a stirring shaft 42, which is located in the stirring chamber and a stirring paddle 43 is fixed on it; the rotating assembly 50 is connected to the stirring shaft 42 and is used to drive the stirring shaft 42 to rotate; the lifting assembly is connected to the rotating assembly 50 and the stirring shaft 42 respectively and is used to drive the stirring shaft 42 to lift and lower, and the stirring shaft 42 always rotates when lifting and lowering.

[0061] In this embodiment, refer to the appendix to the specification. Figure 4It is known that the rotating assembly 50 includes a rotating sleeve 51, which is mounted on the purification tank 40 and coaxial with the stirring shaft 42. The guide groove on the rotating sleeve 51 (not shown in the figure) is slidably connected to the guide key 421 fixed on the stirring shaft 42 along its circumferential direction. The second motor 52 is fixed on the purification tank 40. The first gear 53 fixed at the power output end of the second motor 52 meshes with the second gear 511 fixed on the rotating sleeve 51. The lifting assembly includes a first rotating shaft 54, which is parallel to the stirring shaft 42 and mounted on the purification tank 40. The first rotating shaft 54 ​​is provided with a reciprocating thread section 541. The third gear 55 fixed on the first rotating shaft 54 ​​meshes with the first gear 53. The first end of the lifting plate 56 is connected to the upper rotating shaft of the stirring shaft 42, and the second end is threadedly connected to and passes through the first rotating shaft 54.

[0062] When the second motor 52 is started, its power output drives the first gear 53 to rotate. The rotation of the first gear 53 drives the second gear 511 to rotate, which in turn drives the rotating sleeve 51 to rotate. During the rotation of the rotating sleeve 51, the guide key 421, in conjunction with the guide groove, causes the stirring shaft 42 to rotate around its own axis. This allows the stirring shaft 42 to stir the water and chemicals within the stirring chamber of the purification tank 40. Simultaneously, the rotation of the first gear 53 is transmitted to the third gear 55, which in turn drives the first rotating shaft 54 ​​to rotate. When the first rotating shaft 54 ​​rotates, due to the reciprocating screw... The function of segment 541 is that the lifting plate 56 will reciprocate along the axial direction of the first rotating shaft 54. When the lifting plate 56 reciprocates, it will drive the stirring shaft 42 to move up and down in the vertical direction. During the up and down movement of the stirring shaft 42, the stirring paddle 43 on the stirring shaft 42 can stir the water and medicine in the stirring chamber at different heights. The rotating component 50 realizes the rotation and stirring function of the stirring shaft 42, while the lifting component drives the lifting plate 56 and the stirring shaft 42 to move up and down through the rotation of the first rotating shaft 54. The two work together to ensure the full mixing of water and medicine and expand the stirring range.

[0063] Specifically, the reciprocating thread section 541 includes two thread grooves with the same pitch but opposite directions of rotation, connected at both ends by a transition curve.

[0064] In this embodiment, refer to the appendix to the specification. Figure 5 It is known that the spray assembly 60 includes a spray box 61, which is fixedly installed in the spray chamber below the exhaust port. The interior of the spray box 61 is connected to the water inlet pipe 62. Multiple nozzles 63 connected to the interior of the spray box 61 are fixedly installed at the lower end of the spray box 61. The vent pipe 64 is vertically fixed in the spray chamber above the spray box 61, and the lower end of the vent pipe 64 passes through the spray box 61.

[0065] After water and chemicals are thoroughly mixed by the stirring assembly, a purifying solution is formed. The solution is transported to the spray box 61 of the spray assembly 60 through the water inlet pipe 62. When the spray box 61 is full of the solution, it is sprayed out from the nozzle 63, forming fine droplets. These droplets are evenly sprayed in the space below the spray box 61, making full contact with the gas entering the spray chamber from the air inlet and rising. The harmful gas components in the gas react with the sprayed solution, thereby removing the harmful gas components and achieving preliminary purification of the gas. After fully reacting with the solution, the gas continues to rise and enters the vent pipe 64, which is vertically fixed above the spray box 61. The gas entering the spray chamber above the vent pipe 64 continues to rise to the exhaust port.

[0066] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A blast furnace gas cleaning device, characterized by comprising: include: A pulse dust collector has a horizontally fixed partition inside, which divides the dust collector into an air outlet chamber and a dust removal chamber. The partition has multiple through holes evenly distributed on it. The air outlet chamber has an air outlet, and the dust removal chamber has a dust inlet on one side. Multiple filter cartridges are fixed in the dust removal chamber and correspond one-to-one with multiple through holes. The upper end of each filter cartridge is connected to the through hole. The pulse component in the air outlet chamber is used to spray air onto each filter cartridge. The feeding pipe is fixed in the dust removal chamber below the filter cylinder. Inclined plates are symmetrically fixed on both sides of the feeding pipe, and the higher end of the inclined plates is fixedly connected to the inner wall of the pulse dust collector. A vibration motor is provided on the lower surface of each inclined plate. A pull-out collection box is provided below the feeding pipe. A heat exchanger, which is connected to an air outlet via an inlet pipe, is used to exchange heat with the gas after dust removal. The purification chamber has an air inlet connected to a heat exchanger via an exhaust pipe, used to purify harmful gases in the gas after heat exchange.

2. The blast furnace gas purification device according to claim 1, characterized in that, The pulse assembly includes multiple pulse main pipes, which are horizontally fixed in the air outlet chamber, and multiple pulse branch pipes are fixed on them. Each pulse branch pipe corresponds to a multiple filter cartridge, and an air storage tank is provided at the end of the pulse main pipe.

3. The blast furnace gas purification device according to claim 1, characterized in that, A baffle is fixed on one side of the dust inlet in the dust removal chamber, and there is a gap between the baffle and the dust inlet.

4. The blast furnace gas purification device according to claim 3, characterized in that, A leveling component is provided between the feed pipe and the collection box. The leveling component includes: The first screw is horizontally positioned between the feed pipe and the collection box, and rotates under the drive of the first motor; A flat plate is horizontally positioned between the feed pipe and the collection box, and is threadedly connected to and passes through the first screw.

5. The blast furnace gas purification device according to claim 1, characterized in that, The purification box includes: A horizontal plate is fixed inside the purification chamber, dividing it into a mixing chamber and a spraying chamber. The air inlet is located in the spraying chamber, while the mixing chamber has a water inlet and a reagent inlet. A stirring assembly, disposed within the stirring chamber, is used to stir water and pharmaceuticals; A spray assembly is located in a spray chamber above the air inlet, and the spray assembly is connected to the mixing chamber through a water inlet pipe. An exhaust port is located inside the spray chamber above the spray assembly, and an activated carbon filter plate is fixed on the exhaust port.

6. The blast furnace gas purification device according to claim 5, characterized in that, The stirring assembly includes: A stirring shaft is disposed inside the stirring chamber, and a stirring paddle is fixed on it; A rotating assembly, connected to the stirring shaft, is used to drive the stirring shaft to rotate; The lifting assembly is connected to the rotating assembly and the stirring shaft respectively, and is used to drive the stirring shaft to lift and lower, and the stirring shaft rotates continuously during lifting and lowering.

7. A blast furnace gas purification device according to claim 6, characterized in that, The rotating assembly includes: A rotating sleeve is mounted on the purification box and is coaxial with the stirring shaft. The guide groove on the rotating sleeve is slidably connected to the guide key fixed on the stirring shaft along its circumferential direction. The second motor is fixed on the purification box, and the first gear fixed on the power output end of the second motor meshes with the second gear fixed on the rotating sleeve.

8. A blast furnace gas purification device according to claim 7, characterized in that, The lifting assembly includes: The first rotating shaft is parallel to the stirring shaft and is mounted on the purification box. The first rotating shaft is provided with a reciprocating thread section, and the third gear fixed on the first rotating shaft meshes with the first gear. The lifting plate has its first end connected to the upper rotating shaft of the stirring shaft, and its second end threadedly connected to and passing through the first rotating shaft.

9. A blast furnace gas purification device according to claim 5, characterized in that, The spray assembly includes: A spray box is fixedly installed in the spray chamber below the exhaust port. The interior of the spray box is connected to the water inlet pipe. Multiple spray nozzles connected to the interior of the spray box are fixedly installed at the lower end of the spray box. A vent pipe is vertically fixed to the spray chamber above the spray box, with its lower end penetrating the spray box.

10. A blast furnace gas purification device according to claim 8, characterized in that, The reciprocating thread section includes two thread grooves with the same pitch but opposite directions, connected at both ends by a transition curve.

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