A crude antimony smelting flue gas separation device

Abstract

The application belongs to the technical field of flue gas purification, in particular to a crude antimony smelting flue gas separation device, which comprises a device main body; a device top cover is inserted into the top end of the device main body; an air inlet pipe is fixedly connected to the outer wall of the device main body; a shunt box is fixedly connected to the inside of the device main body and communicates with the air inlet pipe; the separation device introduces the crude antimony smelting flue gas from the air inlet pipe, uniformly diffuses in the device main body through diversified distribution paths, uniformly filters multiple times through the sliding plate installed on the fixing frame and the multiple filter bags placed thereon, effectively improves the separation effect of the dust in the flue gas, when the filter bag is blocked, the filter bag can be quickly replaced by pulling the sliding plate, the two sides of the original position of the filter bag are blocked by the multiple blocking plates on the fixing plate, and the flue gas circulation at the specific position is further blocked by the blocking rod in the branch pipe, so that the filter bag is quickly and effectively replaced.

Description

Technical Field

[0001] This invention belongs to the field of flue gas purification technology, specifically a crude antimony smelting flue gas separation device. Background Technology

[0002] The flue gas from crude antimony smelting mainly contains sulfur dioxide, arsenic compounds, lead vapor, and dust. The most common flue gas separation device for crude antimony smelting is the bag filter, which is mainly used to remove dust particles from the flue gas. It can also be used in conjunction with equipment such as desulfurization towers and condensers to further treat harmful substances in the flue gas.

[0003] A Chinese patent with publication number CN218421708U discloses a device for separating arsenic and antimony elements in flue gas from crude antimony smelting. The device includes a high-temperature separation chamber, a cooling chamber, and a low-temperature separation chamber arranged side by side, a first filter unit, a cold air duct, a second filter unit, a dust collection hopper, an antimony fume conveying unit, and an arsenic fume conveying unit. An induced draft fan is connected to the exhaust gas duct. This application can filter out antimony in the flue gas as antimony fume by effectively controlling the flue gas temperature in the high-temperature separation chamber, and can maintain the arsenic element in a gaseous state to enter the subsequent process, thereby achieving the separation of arsenic and antimony elements.

[0004] When separating flue gas from crude antimony smelting, the flue gas must first be collected, and then the flue gas must be subjected to preliminary and deep dust separation. Only after the dust is separated can the desulfurization process be carried out. If the dust is not cleaned up in the early stage, it will easily increase the difficulty of separating other elements later. Although the above-mentioned separation device can separate arsenic and antimony, it is difficult to evenly diffuse the flue gas and separate the dust in the early stage. As a result, after the flue gas enters the separation chamber, the filter bag closest to the air inlet is prone to severe clogging, while the filter bag far away from the air inlet filters too little flue gas.

[0005] Therefore, the present invention provides a crude antimony smelting flue gas separation device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a crude antimony smelting flue gas separation device, comprising a main body of equipment; a top cover is inserted into the top of the main body of equipment; an air inlet pipe is fixedly connected to the outer wall of the main body of equipment; a diversion box is fixedly connected inside the main body of equipment, and the diversion box is connected to the air inlet pipe; multiple branch pipes are fixedly connected to the end of the diversion box away from the air inlet pipe, and multiple air outlet holes are opened at the top of the branch pipes; an air outlet pipe is fixedly connected to the outer wall of the top cover of equipment; and a separation component is provided inside the main body of equipment for separating dust in the flue gas.

[0008] Preferably, the separation assembly includes a fixing frame, a sliding plate, and filter bags; a plurality of the fixing frames are fixedly connected to the inner wall of the main body of the equipment; the sliding plate is slidably connected between two fixing frames; and a plurality of filter bags are inserted into the sliding plate.

[0009] Preferably, each of the multiple air outlets of the branch pipe is fixedly connected to a nozzle; a blocking block is fixedly connected to the top of the nozzle, and the opening cross-section of the top of the blocking block is inverted L-shaped.

[0010] Preferably, a fixing plate is fixedly connected to the outer wall of the main body of the equipment; multiple sealing plates are slidably connected to the inner wall of the main body of the equipment, and the multiple sealing plates slide on the fixing plate; a sealing rod is fixedly connected to the outer wall of the sealing plate, and the sealing rod is slidably connected to the inner wall of the branch pipe.

[0011] Preferably, an inlet pipe is fixedly connected to the outer wall of the main body of the equipment; a first diversion plate and a second diversion plate are fixedly connected to one side of the outer wall of the inlet pipe, and the first diversion plate and the second diversion plate are located inside the main body of the equipment; an outlet pipe is fixedly connected to the end of the first diversion plate and the second diversion plate away from the inlet pipe, and the inlet pipe can be connected to the outlet pipe through the first diversion plate and the second diversion plate.

[0012] Preferably, a control box is fixedly connected to the side of the water outlet pipe away from the second diversion plate; a connecting pipe is fixedly connected to the side of the control box away from the water outlet pipe, and the water outlet pipe can be connected to the connecting pipe through the control box; a diversion pipe is fixedly connected to the side of the control box near the water outlet pipe; a connecting groove is provided inside the main body of the equipment; a spray plate is fixedly connected to the inner wall of the main body of the equipment and below the first diversion plate, the spray plate is arranged in a ring, and the spray plate can be connected to the diversion pipe through the connecting groove; a sealing component is provided inside the control box, and the sealing component is used to control the connection at the diversion pipe.

[0013] Preferably, the control box has a diversion channel inside, and the diversion pipe is fixed to the diversion channel; the sealing assembly includes a fixed rod, a sliding block and an elastic element; the fixed rod is fixed to the inner wall of the control box; the sliding block is slidably connected to the fixed rod; the elastic element is sleeved on the fixed rod, and the elastic element is located between the sliding block and the inner wall of the control box.

[0014] Preferably, a pulse generator is fixedly connected to the inner wall of the device top cover; a filter screen is fixedly connected to the inner wall of the device top cover above the pulse generator.

[0015] Preferably, the top of the shielding block is tapered, and each slope surface at the top has an opening.

[0016] Preferably, the first and second diversion plates are respectively sleeved on multiple branch pipes, and solenoid valves are installed inside the first and second diversion plates near the branch pipes.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The present invention discloses a crude antimony smelting flue gas separation device. This separation device introduces crude antimony smelting flue gas from the inlet pipe, which is then evenly diffused inside the main body of the equipment through diverse distribution paths. The flue gas is then evenly filtered at multiple points by a sliding plate installed on the fixed frame and multiple filter bags placed thereon, effectively improving the separation effect of dust in the flue gas. When the filter bag is clogged, it can be quickly replaced by pulling the sliding plate. Multiple sealing plates on the fixed plate seal both sides of the original position of the filter bag, and sealing rods inside the branch pipe further block the flow of flue gas at specific locations, ensuring that the filter bag is quickly and effectively replaced.

[0019] 2. The crude antimony smelting flue gas separation device of the present invention is further equipped with a heat exchange system. The system uses cold water in cooling water pipes to exchange heat with the high-temperature flue gas, reducing the flue gas temperature to a reasonable level and minimizing damage to the filter bags. After heat exchange, the introduced cold water can be used to rinse the inner wall of the main body of the device via a spray plate installed inside the device, effectively cleaning the dust adhering to it and maintaining the cleanliness of the device. Furthermore, a pulse generator is located inside the top cover of the device. When it is necessary to clean the dust on the filter bags, the pulsed airflow released by the pulse generator can remove the adhering dust, and the secondary filtration by the filter screen further improves the separation effect of the flue gas. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a partial structural cross-sectional view of the main body of the device in this invention;

[0023] Figure 3 This is a schematic diagram of the structure of the blocking block in this invention;

[0024] Figure 4 This is a partial structural cross-sectional view of the sealing rod in this invention;

[0025] Figure 5 This is a schematic diagram of the sliding plate in this invention;

[0026] Figure 6 This is a schematic diagram of the structure of the No. 1 diverter plate in this invention;

[0027] Figure 7 This is a schematic diagram of the structure of the No. 2 diverter plate in this invention;

[0028] Figure 8This is a partial structural cross-sectional view of the control box in this invention.

[0029] In the diagram: 1. Main body of the equipment; 11. Top cover of the equipment; 12. Air inlet pipe; 13. Diverter box; 14. Branch pipe; 15. Air outlet pipe; 2. Fixing frame; 21. Sliding plate; 22. Filter bag; 3. Nozzle; 31. Blocking block; 4. Fixing plate; 41. Sealing plate; 42. Sealing rod; 5. Water inlet pipe; 51. Diverter plate No. 1; 52. Diverter plate No. 2; 53. Water outlet pipe; 6. Control box; 61. Connecting pipe; 62. Diverter pipe; 63. Connecting groove; 64. Spray plate; 7. Fixing rod; 71. Sliding block; 72. Elastic element; 8. Pulse generator; 81. Filter screen plate. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 6 As shown in the embodiment of the present invention, a crude antimony smelting flue gas separation device includes a main body 1; a top cover 11 is inserted into the top of the main body 1; an inlet pipe 12 is fixedly connected to the outer wall of the main body 1; a diversion box 13 is fixedly connected inside the main body 1, and the diversion box 13 is connected to the inlet pipe 12; a plurality of branch pipes 14 are fixedly connected to the end of the diversion box 13 away from the inlet pipe 12, and a plurality of air outlet holes are opened at the top of the branch pipes 14; an outlet pipe 15 is fixedly connected to the outer wall of the top cover 11; a separation component is provided inside the main body 1, which is used to separate dust in the flue gas; the separation component separates dust in the crude antimony smelting flue gas. During separation, the top cover 11 of the equipment is inserted into the top of the main body 1 of the equipment as the main structure of the separation device. The flue gas from crude antimony smelting is introduced into the interior of the diversion box 13 through the inlet pipe 12, and then into the interior of the main body 1 through the outlet holes at the top of multiple branch pipes 14. The flue gas is evenly dispersed inside the main body 1 for separation. The evenly dispersed flue gas is filtered by the separation components, which can filter out the dust in the flue gas. The filtered flue gas enters the interior of the top cover 11 of the equipment and is then discharged from the outlet pipe 15. The original method of filtering from one place is switched to filtering from multiple places, so that the flue gas can be evenly filtered, thereby improving the filtration effect of dust in the flue gas.

[0032] The separation assembly includes a fixed frame 2, a sliding plate 21, and filter bags 22. Multiple fixed frames 2 are fixed to the inner wall of the equipment body 1. The sliding plate 21 is slidably connected between two fixed frames 2. Multiple filter bags 22 are inserted into the sliding plate 21. When filtering dust from the flue gas of crude antimony smelting, multiple filter bags 22 are installed on each sliding plate 21. Multiple sliding plates 21 are inserted into the interior of the equipment body 1, and each sliding plate 21 slides between two fixed frames 2, so that each filter bag 22 is located above an outlet of multiple branch pipes 14, enabling filtration of the flue gas discharged from each outlet, uniformly filtering out the dust in the flue gas. Simultaneously, when the filter bag 22 is clogged by dust, the sliding plate 21 can be pulled out of the equipment body 1 for replacement. The plates at both ends of the bottom of the sliding plate 21 can seal the inner wall of the equipment body 1, improving the efficiency of filter bag 22 replacement.

[0033] like Figures 1 to 4 , Figure 6 As shown, nozzles 3 are fixedly connected to multiple air outlets of the branch pipe 14; a baffle block 31 is fixedly connected to the top of the nozzle 3, and the opening cross-section of the top of the baffle block 31 is inverted L-shaped; when uniformly dispersing the flue gas from crude antimony smelting, multiple nozzles 3 are fixed to multiple air outlets respectively, and the baffle block 31 is fixed to the top of the nozzles 3. This allows the flue gas entering the branch pipe 14 to be uniformly dispersed into the interior of the main body 1 through multiple inverted L-shaped openings on the baffle block 31, improving the uniform filtration effect of the flue gas. At the same time, when cleaning the dust adhering to the filter bag 22, the dust is cleaned off and falls to the top of the baffle block 31 and slides down. Because the opening on the baffle block 31 is set in an inverted L-shape, it can reduce the amount of dust falling onto the holes of the nozzles 3 and causing blockage.

[0034] like Figures 1 to 4 As shown, a fixing plate 4 is fixedly connected to the outer wall of the main body 1 of the equipment; multiple sealing plates 41 are slidably connected to the inner wall of the main body 1 of the equipment, and the multiple sealing plates 41 slide on the fixing plate 4; a sealing rod 42 is fixedly connected to the outer wall of the sealing plate 41, and the sealing rod 42 is slidably connected to the inner wall of the branch pipe 14; when replacing the blocked filter bag 22, the sealing plate 41 is first slidably pushed into the interior of the main body 1 of the equipment by sliding it on the fixing plate 4, and the sealing plate 41 can block both sides of a row of filter bags 22. The blocking rod 42 slides on the inner wall of the branch pipe 14, blocking the original position of the blocked filter bag 22 from the inside of the main body 1 of the equipment. After the blocking plate 41 completes the blocking, it pulls out the single row of blocked filter bags 22 for replacement, which plays a role in quickly replacing the single row of filter bags 22. At the same time, the blocking rod 42 slides with the blocking plate 41, which can block the branch pipe 14 below the blocked filter bag 22, so that the branch pipe 14 below the blocked filter bag 22 no longer discharges flue gas, which plays a role in controlling and blocking the flue gas.

[0035] like Figures 1 to 4 , Figures 6 to 8 As shown, an inlet pipe 5 is fixedly connected to the outer wall of the main body 1 of the equipment; a first diversion plate 51 and a second diversion plate 52 are respectively fixedly connected to one side of the outer wall of the inlet pipe 5, and the first diversion plate 51 and the second diversion plate 52 are located inside the main body 1 of the equipment; an outlet pipe 53 is fixedly connected to the end of the first diversion plate 51 and the second diversion plate 52 away from the inlet pipe 5, and the inlet pipe 5 can be connected to the outlet pipe 53 through the first diversion plate 51 and the second diversion plate 52; when the crude antimony smelting flue gas is introduced... When the main body 1 of the equipment is separated, some of the flue gas that is introduced is prone to excessively high temperature, which can cause significant damage to the filter bag 22. A water pump is connected to the water inlet pipe 5 to pump in cold water, which enters through the water inlet pipe 5. The first diversion plate 51 and the second diversion plate 52 are respectively fitted onto multiple branch pipes 14. The cold water exchanges heat with the high temperature flue gas. The water after heat exchange is discharged from the water outlet pipe 53. The flue gas with reduced temperature enters the main body 1 of the equipment for separation, reducing the damage caused by the high temperature flue gas to the filter bag 22.

[0036] A control box 6 is fixedly connected to the side of the water outlet pipe 53 away from the second diversion plate 52; a connecting pipe 61 is fixedly connected to the side of the control box 6 away from the water outlet pipe 53, and the water outlet pipe 53 can be connected to the connecting pipe 61 through the control box 6; a diversion pipe 62 is fixedly connected to the side of the control box 6 near the water outlet pipe 53; a connecting groove 63 is provided inside the main body of the equipment; a spray plate 64 is fixedly connected to the inner wall of the main body of the equipment 1 and below the first diversion plate 51, the spray plate 64 is arranged in a ring, and the spray plate 64 can be connected to the diversion pipe 62 through the connecting groove 63; a sealing component is provided inside the control box 6 for sealing. The component is used to control the connection at the diversion pipe 62. After heat exchange with high-temperature flue gas, cold water is discharged into the control box 6 from the outlet pipe 53. When it is necessary to flush the dust off the bottom inner wall of the equipment body 1, the sealing component opens the diversion pipe 62. Part of the water is discharged from the connecting pipe 61, while the remaining water flows through the diversion pipe 62 into the connecting groove 63. Finally, water is sprayed from the spray plate 64 onto the inner wall of the equipment body 1 to flush the dust off the multiple filter bags 22, thus rinsing the dust-attached areas on the inner wall of the equipment body 1. When it is not necessary to flush the dust, the sealing component closes the diversion pipe 62 to drain the water normally.

[0037] The control box 6 has an internal diversion channel, and the diversion pipe 62 is fixedly connected to the diversion channel; the sealing assembly includes a fixed rod 7, a sliding block 71, and an elastic element 72; the fixed rod 7 is fixedly connected to the inner wall of the control box 6; the sliding block 71 is slidably connected to the fixed rod 7; the elastic element 72 is sleeved on the fixed rod 7, and the elastic element 72 is located between the sliding block 71 and the inner wall of the control box 6; when the diversion pipe 62 is connected, the power of the water pump is set to two levels, with the first level having low water pressure and the second level having high water pressure. When the first level is activated, pumped water enters the main body 1 of the equipment. The water undergoes internal heat exchange, and then flows directly out through the outlet pipe 53, sliding block 71, and connecting pipe 61. When the second power setting is activated, the pumped water enters the interior of the main body 1 for heat exchange. The water then washes the sliding block 71, which slides on the fixed rod 7 and compresses the elastic element 72. Some of the water still flows directly out through the outlet pipe 53, sliding block 71, and connecting pipe 61, while the other part of the water flows through the sliding block 71, the diversion channel, the diversion pipe 62, and the connecting groove 63 to the spray plate 64 and is sprayed out, which plays a role in controlling the flow at the diversion pipe 62.

[0038] like Figure 1 and Figure 2 As shown, a pulse generator 8 is fixedly connected to the inner wall of the device top cover 11; a filter screen plate 81 is fixedly connected to the inner wall of the device top cover 11 and above the pulse generator 8; when cleaning multiple filter bags 22, a large amount of dust is attached to the filter bags 22. The multiple output ends of the pulse generator 8 are used to pulse the multiple filter bags 22 respectively, which washes off the dust attached to the multiple filter bags 22. At the same time, the filter screen plate 81 is fixed above the pulse generator 8, which can filter the flue gas a second time and improve the filtration effect of the flue gas.

[0039] like Figures 1 to 4 , Figure 6 As shown, the top of the shielding block 31 is cone-shaped, and each slope surface at the top has an opening. When the dust attached to the multiple filter bags 22 is cleaned off, the cone-shaped slope surface at the top of the shielding block 31 can guide the dust to fall, while the opening on the cone-shaped slope surface can evenly disperse the flue gas into the interior of the main body 1 for separation.

[0040] like Figures 1 to 4 , Figure 6 , Figure 7As shown, the first diversion plate 51 and the second diversion plate 52 are respectively sleeved on multiple branch pipes 14, and solenoid valves are installed inside the first diversion plate 51 and the second diversion plate 52 near the branch pipes 14. When a single row of filter bags 22 is removed and replaced, if the currently removed single row of filter bags 22 is located at a position on the first diversion plate 51 or the second diversion plate 52, the solenoid valve at the current position is opened, so that the cold water that originally flowed around the outer wall of the branch pipe 14 can become a direct current, passing the position of the currently removed filter bag 22 to reach the next single row for heat exchange. After the single row of filter bags 22 is replaced, the solenoid valve at the current position is closed, and the direct current water can continue to flow around the outer wall of the branch pipe 14 in a ring for heat exchange, thereby improving the heat exchange effect.

[0041] Working process: When separating dust from the flue gas of crude antimony smelting, the top cover 11 of the equipment is inserted into the top of the main body 1 of the equipment as the main structure of the separation device. The flue gas of crude antimony smelting is introduced into the interior of the distribution box 13 through the inlet pipe 12, and then into the interior of the main body 1 through the outlet holes at the top of multiple branch pipes 14. The flue gas is evenly dispersed inside the main body 1 for separation. The separation components filter the evenly dispersed flue gas, which can filter out the dust in the flue gas. The filtered flue gas enters the interior of the top cover 11 of the equipment, and is then discharged from the outlet pipe 15. This changes the original method of filtering from one point to filtering from multiple points, so that the flue gas can be evenly filtered, thereby improving the efficiency of the separation process. The filtration effect of dust in the gas; when filtering dust in the flue gas of crude antimony smelting, multiple filter bags 22 are installed on each sliding plate 21. Multiple sliding plates 21 are inserted into the interior of the main body 1 of the equipment, and each sliding plate 21 slides between two fixed frames 2, so that each filter bag 22 is located above an air outlet of multiple branch pipes 14, which can filter the flue gas discharged from each air outlet and filter the dust in the flue gas evenly. At the same time, when the filter bag 22 is blocked by dust, the sliding plate 21 can be pulled out of the interior of the main body 1 for replacement. The plates at both ends of the bottom of the sliding plate 21 can seal the inner wall of the main body 1 of the equipment, improving the efficiency of replacing the filter bag 22.

[0042] When uniformly dispersing the flue gas from crude antimony smelting, multiple nozzles 3 are fixed to multiple air outlets, and a baffle block 31 is fixed to the top of the nozzles 3. This allows the flue gas entering the branch pipe 14 to be evenly dispersed into the interior of the main body 1 through multiple inverted L-shaped openings on the baffle block 31, thereby improving the uniform filtration effect of the flue gas. At the same time, when cleaning the dust adhering to the filter bag 22, the dust is cleaned off and falls off the top of the baffle block 31. Because the openings on the baffle block 31 are set in an inverted L-shape, it can reduce the amount of dust falling onto the holes of the nozzles 3 and causing blockage.

[0043] When replacing a clogged filter bag 22, first slide the sealing plate 41 onto the fixing plate 4 and push it into the interior of the main body 1 of the equipment. The sealing plate 41 can block both sides of a row of filter bags 22. The sealing rod 42 slides on the inner wall of the branch pipe 14, blocking the original position of the clogged filter bag 22 from the interior of the main body 1 of the equipment. After the sealing plate 41 completes the blocking, pull the single row of clogged filter bags 22 out for replacement, which can quickly replace the single row of filter bags 22. At the same time, the sealing rod 42 slides with the sealing plate 41 and can block the branch pipe 14 below the clogged filter bag 22, so that the branch pipe 14 below the clogged filter bag 22 no longer discharges flue gas, which plays a role in controlling and blocking the flue gas.

[0044] When the flue gas from crude antimony smelting is introduced into the main body 1 of the equipment for separation, some of the introduced flue gas is prone to excessively high temperature, which can cause significant damage to the filter bags 22. A water pump connected to the inlet pipe 5 is used to pump in cold water, which enters through the inlet pipe 5. The first and second diversion plates 51 and 52 are respectively fitted onto multiple branch pipes 14, allowing the cold water to exchange heat with the high-temperature flue gas. The water after heat exchange is discharged through the outlet pipe 53, and the cooled flue gas then enters the main body 1 of the equipment for further separation. This reduces the damage caused by high-temperature flue gas to the filter bags 22. After heat exchange with the high-temperature flue gas, cold water is discharged into the control box 6 from the outlet pipe 53. When it is necessary to flush the dust off the bottom inner wall of the equipment body 1, the sealing component opens the diversion pipe 62, and some water is discharged out through the connecting pipe 61, while the remaining water flows through the diversion pipe 62 into the connecting groove 63. Finally, water is sprayed onto the inner wall of the equipment body 1 from the spray plate 64 to flush the dust off the multiple filter bags 22. The dust removal function serves to flush away dust adhering to the inner wall of the main body 1. When dust flushing is not required, the sealing component can close the diversion pipe 62 for normal drainage. When the diversion pipe 62 is controlled to be connected, the power of the water pump is set to two levels: the first level has low water pressure and the second level has high water pressure. When the first level is activated, the pumped water enters the interior of the main body 1 for heat exchange, and then the water is discharged directly through the outlet pipe 53, sliding block 71 and connecting pipe 61. When the second level is activated, the pumped water enters the interior of the main body 1 for heat exchange, and then the water can flush the sliding block 71 to slide. The sliding block 71 slides on the fixed rod 7 and squeezes the elastic element 72 to contract and bear force. Some of the water is still discharged directly through the outlet pipe 53, sliding block 71 and connecting pipe 61, while the other part of the water reaches the spray plate 64 through the sliding block 71, diversion channel, diversion pipe 62 and connecting groove 63 and is sprayed out, which plays a role in controlling the flow at the diversion pipe 62.

[0045] When cleaning multiple filter bags 22, a large amount of dust is attached to the filter bags 22. The multiple output terminals of the pulse generator 8 are used to pulse the multiple filter bags 22 respectively, which washes off the dust attached to the multiple filter bags 22. At the same time, the filter screen plate 81 is fixed above the pulse generator 8, which can filter the flue gas a second time and improve the filtration effect of the flue gas.

[0046] When the dust attached to multiple filter bags 22 is cleaned off, the dust can be guided to fall by the conical slope at the top of the shielding block 31, and the opening on the conical slope can evenly disperse the flue gas into the interior of the main body of the equipment 1 for separation.

[0047] When a single-row filter bag 22 is removed and replaced, if the currently removed single-row filter bag 22 is located at a point on the first diversion plate 51 or the second diversion plate 52, the solenoid valve at the current position is opened, so that the cold water that was originally flowing around the outer wall of the branch pipe 14 can become a direct current, passing over the position of the currently removed filter bag 22 to reach the next single row for heat exchange. After the single-row filter bag 22 is replaced, the solenoid valve at the current position is closed, and the direct current water can continue to flow around the outer wall of the branch pipe 14 in a ring for heat exchange, thereby improving the heat exchange effect.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crude antimony smelting flue gas separation device, characterized in that: The device includes a main body; a top cover is inserted into the top of the main body; an air inlet pipe is fixed to the outer wall of the main body; a distribution box is fixed inside the main body and is connected to the air inlet pipe; multiple branch pipes are fixed to the end of the distribution box away from the air inlet pipe, and multiple air outlets are opened at the top of the branch pipes; an air outlet pipe is fixed to the outer wall of the top cover; and a separation component is provided inside the main body for separating dust from the flue gas. A water inlet pipe is fixedly connected to the outer wall of the main body of the equipment; a first diversion plate and a second diversion plate are fixedly connected to one side of the outer wall of the water inlet pipe, and the first diversion plate and the second diversion plate are located inside the main body of the equipment; a water outlet pipe is fixedly connected to the end of the first diversion plate and the second diversion plate away from the water inlet pipe, and the water inlet pipe can be connected to the water outlet pipe through the first diversion plate and the second diversion plate. A control box is fixedly connected to the side of the water outlet pipe away from the second diversion plate; a connecting pipe is fixedly connected to the side of the control box away from the water outlet pipe, and the water outlet pipe can be connected to the connecting pipe through the control box; a diversion pipe is fixedly connected to the side of the control box near the water outlet pipe; a connecting groove is opened inside the main body of the equipment; a water spray plate is fixedly connected to the inner wall of the main body of the equipment and below the first diversion plate. The water spray plate is arranged in a ring and can be connected to the diversion pipe through the connecting groove; a sealing component is provided inside the control box, which is used to control the connection at the diversion pipe. The control box has a diversion channel inside, and the diversion pipe is fixed to the diversion channel; the sealing assembly includes a fixed rod, a sliding block and an elastic element; the fixed rod is fixed to the inner wall of the control box; the sliding block is slidably connected to the fixed rod; the elastic element is sleeved on the fixed rod, and the elastic element is located between the sliding block and the inner wall of the control box. The separation assembly includes a fixed frame, a sliding plate, and filter bags; multiple fixed frames are fixed to the inner wall of the main body of the equipment; the sliding plate is slidably connected between two fixed frames; and multiple filter bags are inserted into the sliding plate.

2. The crude antimony smelting flue gas separation device according to claim 1, characterized in that: Each of the multiple air outlets of the branch pipe is fixedly connected to a nozzle; a shielding block is fixedly connected to the top of the nozzle, and the opening cross-section of the top of the shielding block is inverted L-shaped.

3. The crude antimony smelting flue gas separation device according to claim 1, characterized in that: A fixing plate is fixedly connected to the outer wall of the main body of the equipment; multiple sealing plates are slidably connected to the inner wall of the main body of the equipment, and the multiple sealing plates slide on the fixing plate; a sealing rod is fixedly connected to the outer wall of the sealing plate, and the sealing rod is slidably connected to the inner wall of the branch pipe.

4. The crude antimony smelting flue gas separation device according to claim 1, characterized in that: A pulse generator is fixedly connected to the inner wall of the device top cover; a filter screen is fixedly connected to the inner wall of the device top cover above the pulse generator.

5. The crude antimony smelting flue gas separation device according to claim 2, characterized in that: The top of the shielding block is tapered, and each slope surface at the top has an opening.

6. The crude antimony smelting flue gas separation device according to claim 1, characterized in that: The No. 1 and No. 2 diversion plates are respectively sleeved on multiple branch pipes, and solenoid valves are installed inside the No. 1 and No. 2 diversion plates near the branch pipes.

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