A cyclone dust removal device for tail gas treatment

Abstract

The present invention belongs to the field of exhaust gas treatment, specifically, a cyclone dust removal device for exhaust gas treatment, including a plurality of cyclone dust removal tanks, which are linearly and equidistantly arranged, a plurality of negative pressure machines are arranged on one side of the cyclone dust removal tank, the air output end of the cyclone dust removal tank is connected with an air flow pipe, the air flow pipe can be connected to the input end of an adjacent cyclone dust removal tank, and can also be connected to the negative pressure machine, the inner wall of the cyclone dust removal tank is coated with a wear-resistant coating, through this arrangement, a plurality of cyclone dust removal tanks can be connected in series according to different exhaust gases, thereby increasing the treatment effect on particles in the exhaust gas, and the spare cyclone dust removal tanks can also work independently, and the phenomenon of many cyclone dust removal tanks being unable to work will not occur, and because the cyclone dust removal tank is centrifugal filtering, the internal structure is simple, the separated particles can be recovered from the bottom of the cyclone dust removal tank, and there is no need to contact the filtering parts, so that the filtering speed is faster.

Description

Technical Field

[0001] The invention belongs to the field of tail gas treatment, in particular to a tail gas treatment cyclone dust removal device. Background Art

[0002] With the development of industry, the amount of exhaust gas generated by various production processes has increased dramatically. Most of the exhaust gas cannot be discharged directly into the air. Some of it is because the pollution exceeds the standard, and some of it is because there are recyclable components in the exhaust gas, so the exhaust gas needs to be treated.

[0003] A Chinese patent with the announcement of CN215539495U discloses a cyclone separator for an exhaust gas treatment system, including a separator, an air inlet pipe and a pressurized filtering mechanism, a top cover is fixedly installed on the top of the air inlet pipe, an air outlet pipe is fixedly installed on the top of the top cover, and an ash hopper is fixedly installed on the bottom of the separator. The exhaust gas treatment system uses a cyclone separator to perform preliminary filtration on the exhaust gas entering the separator. After a period of filtration, the clamping pipe and the connector can be removed and replaced to improve the filtration efficiency.

[0004] Traditional exhaust gas treatment devices use bag dust removal or semi-permeable membrane dust removal. Although the dust removal effect is good, the processing speed is slow, and this type of treatment device has more structures. The filtered particles are easily contaminated, and the filter parts need to be replaced after a period of use. The cyclone dust removal equipment has a simple structure, a low failure rate, and low maintenance costs. It is also relatively simple to operate, but when the particles in the exhaust gas are small, the separation effect is general.

[0005] To this end, the present invention provides a cyclone dust removal device for tail gas treatment. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the exhaust gas treatment cyclone dust removal device described in the present invention comprises a plurality of cyclone dust removal tanks, the plurality of cyclone dust removal tanks are linearly and equidistantly arranged, a plurality of negative pressure machines are arranged on one side of the cyclone dust removal tank, an air flow pipe is connected to the air output end of the cyclone dust removal tank, the air flow pipe can be connected to the input end of the adjacent cyclone dust removal tank, and can also be connected to the negative pressure machine, and a wear-resistant coating is applied on the inner wall of the cyclone dust removal tank;

[0008] Preferably, by setting up multiple cyclone dust collectors, when the particles in the exhaust gas are large, the exhaust gas can be directly passed into the cyclone dust collector, so that the exhaust gas can generate a spiral airflow in the cyclone dust collector, and the particles in the exhaust gas are separated from the gas under the centrifugal action. At the same time, a negative pressure machine is used to generate negative pressure to extract the clean airflow after the cyclone dust collector has removed the dust. When the particles are small, in order to ensure the cleanliness of the exhaust gas treatment, the adjacent cyclone dust collectors can be connected. After the first cyclone dust collector has treated the exhaust gas, the treated exhaust gas is passed through the airflow pipe to the second cyclone dust collector for secondary treatment. The exhaust gas is confirmed by detecting the air discharged from the exhaust pipe. Whether it is processed cleanly, through this setting, multiple cyclone dust collectors can be connected in series according to different exhaust gases, so as to increase the treatment effect on particles in the exhaust gas, and the spare cyclone dust collectors can also work independently, and there will be no phenomenon that many cyclone dust collectors cannot work. Moreover, since it is the centrifugal filtration work of the cyclone dust collector, the internal structure is simple, and the separated particles will be recovered from the bottom of the cyclone dust collector, and there is no need to contact the filtering parts, so that the filtration speed is faster and the filtered particles will not be contaminated. At the same time, after the cyclone dust collector is used for a long time, the particles can easily damage the inner wall of the cyclone dust collector. By applying a wear-resistant coating on the inner wall, the damage to the cyclone dust collector can be reduced.

[0009] Preferably, the top of the cyclone dust collector is fixedly connected with an air duct in a vertical state, and the bottom of the air flow duct is rotatably connected to the bottom of the air duct, and the outer side of the cyclone dust collector is fixedly connected with an air inlet pipe tangent to the outer side of the cyclone dust collector. During operation, the air flow pipe can rotate. When a single cyclone dust collector is working, it is only necessary to pass the exhaust gas through the air inlet pipe, and then the filtered exhaust gas is discharged to the negative pressure machine through the air duct. When the cyclone dust collectors need to be connected in series, the air flow pipe of the cyclone dust collector that first introduces the exhaust gas is rotated so that the output end of the air flow pipe faces the second cyclone dust collector. At the same time, the second cyclone dust collector is rotated so that the air inlet pipe of the second cyclone dust collector is connected to the air flow pipe of the first cyclone dust collector. In this way, the exhaust gas can enter the second cyclone dust collector for secondary treatment. The same operation is required to continue to connect the cyclone dust collectors in series.

[0010] Preferably, a support frame is fixedly connected to the outer side of the cyclone dust collector tank, and a recovery seat is arranged at the bottom of the cyclone dust collector tank, and the recovery seat is fixedly connected to the support frame, and the bottom of the recovery seat is rotatably connected to the support frame. When working, the support frame is used to reinforce the cyclone dust collector tank, and the recovery seat is connected to the inside of the cyclone dust collector tank to recover particles. The recovery seat can rotate above the support seat, and the support seat needs to be fixed to the foundation to ensure the stability of the cyclone dust collector tank. After the cyclone dust collector tank is rotated into place, the recovery seat and the support seat are fixed with bolts.

[0011] Preferably, the input end of the negative pressure machine is fixedly connected to a transfer pipe, the output end of the negative pressure machine is fixedly connected to a discharge pipe, an adjustment rail is provided at the bottom of the negative pressure machine, and the bottom of the negative pressure machine is slidably engaged on the adjustment rail. When working, it is connected to the airflow pipe through the transfer pipe, and the connection can be released. The negative pressure machine can slide on the adjustment rail to adapt to the direction of the adjusted airflow pipe to ensure that the transfer pipe and the airflow pipe can be connected.

[0012] Preferably, the airflow tube is arranged in a bent shape, and an adjustment valve is fixedly connected to the outer side of the airflow tube, and the adjustment valve is used to switch the output direction of the airflow tube. During operation, in order to allow the two cyclone dust collectors to be smoothly docked, the airflow tubes of the two cyclone dust collectors connected in series need to be rotated so that the second airflow tube does not block the first airflow tube. After the second airflow tube is rotated, the flow direction of the airflow is changed through the adjustment valve, so that the transmission tube of the negative pressure machine can be directly docked with the adjustment valve to complete the transmission of negative pressure.

[0013] Preferably, a plurality of feeding valves are installed near the edge of the top of the cyclone dust collector tank, and the plurality of feeding valves are arranged in a circular shape with equal spacing. An inclined chamfer is provided at the bottom of the internal connection between the air inlet pipe and the cyclone dust collector tank. During operation, after the cyclone dust collector tank has been working for a long time, the particles in the exhaust gas will continue to rub against the inner wall of the cyclone dust collector tank, and the wear-resistant coating will also be gradually worn. After a period of use, the feeding valve is opened, and the liquefied coating is slowly injected into the interior of the cyclone dust collector tank. The coating flows downward along the inner wall of the cyclone dust collector tank, and at the same time, dry air is introduced into the interior of the cyclone dust collector tank. Clean airflow will form a vortex inside the cyclone dust collector, so that the paint flowing on the inner wall will be spread more evenly. The airflow introduced at the beginning can be of higher temperature. After the coating liquid has been injected for a period of time, it is replaced by air with lower temperature, which is helpful for the hot melt coating liquid to take shape. Through this setting, new wear-resistant coating can be continuously applied to the inner wall of the cyclone dust collector, thereby improving the service life of the cyclone dust collector without disassembling the cyclone dust collector. The chamfered connection between the air inlet pipe and the cyclone dust collector can prevent the coating liquid from transferring to the outside of the air inlet pipe.

[0014] Preferably, a plurality of annular storage strips are fixedly connected to the inner wall of the cyclone dust collector tank, and the plurality of storage strips are arranged vertically and equidistantly. During operation, in order to ensure uniform coating, the injected coating liquid will accumulate on the top of the storage strips through the setting of the plurality of storage strips until it can no longer accumulate, and will then gradually penetrate outward. Since the coating liquid has a certain viscosity and surface tension, it will flow downward in a relatively uniform covering manner, and will accumulate and overflow on the next storage strip. At the same time, combined with the internal spiral airflow, it can further ensure that the coating is evenly applied to the inner wall of the cyclone dust collector tank.

[0015] Preferably, the vertical cross-section of the storage strip is concave with high sides and a low center, and the height of the side of the storage strip that is in contact with the inner wall of the cyclone dust collector tank is higher than the other side away from the inner wall. A drain valve connected to the interior is installed on the outer side of the cyclone dust collector tank, and the drain valve is connected to the concave part of the storage strip. When working, the coating liquid will be concentrated in the concave part and then overflow to the end away from the cyclone dust collector tank. When the bottom of the cyclone dust collector tank starts to recover the coating liquid, the drain valve is used to recover the accumulated coating liquid, which not only ensures that the coating liquid covers the inner wall of the cyclone dust collector tank, but also prevents the coating liquid from solidifying and accumulating in the storage strip.

[0016] Preferably, a three-way discharge trough is provided inside the recovery seat, two of the outlets of the three-way discharge trough are located in the horizontal direction, and the two outlets are symmetrically arranged, and a three-way valve is installed at the top outlet of the three-way discharge trough. During operation, when exhaust gas treatment is carried out, the top and one of the side outlets are connected to allow the filtered particles to be recovered, and when coating liquid is covered, the top and the other side outlet are connected to allow the coating liquid to be smoothly recovered, without affecting each other, and adjusted by the three-way valve.

[0017] Preferably, an extension tube is slidably connected to the end of the airflow tube, and the extension tube is parallel to the output end of the airflow tube. A restraining frame for supporting the airflow tube is fixedly connected to the top of the cyclone dust collector. When working, the rotational stability of the airflow tube is reinforced by the restraining frame. The extension tube is used to connect the airflow tube and the transfer tube, or the airflow tube and the air inlet pipe, to ensure the smooth flow of airflow.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The exhaust gas treatment cyclone dust removal device described in the present invention has multiple cyclone dust removal tanks. When the particles in the exhaust gas are large, the exhaust gas can be directly passed into the cyclone dust removal tank to generate a spiral airflow in the cyclone dust removal tank. Under the centrifugal effect, the particles in the exhaust gas are separated from the gas. At the same time, a negative pressure machine is used to generate negative pressure to extract the clean airflow after the cyclone dust removal tank has removed the dust. When the particles are small, in order to ensure the cleanliness of the exhaust gas treatment, the adjacent cyclone dust removal tanks can be connected. After the first cyclone dust removal tank treats the exhaust gas, the treated exhaust gas is passed through the airflow pipe to the second cyclone dust removal tank for secondary treatment. The exhaust gas discharged from the exhaust pipe is detected. Air, confirm whether the exhaust gas is treated cleanly. Through this setting, multiple cyclone dust collectors can be connected in series according to different exhaust gases to increase the treatment effect on particles in the exhaust gas, and the spare cyclone dust collectors can also work independently, and there will be no phenomenon that many cyclone dust collectors cannot work. Moreover, due to the centrifugal filtration work of the cyclone dust collector, the internal structure is simple, and the separated particles will be recovered from the bottom of the cyclone dust collector, and there is no need to contact the filtering parts, which makes the filtration speed faster and will not contaminate the filtered particles. At the same time, after long-term use, the particles of the cyclone dust collector are easy to damage the inner wall of the cyclone dust collector. By applying a wear-resistant coating on the inner wall, the damage to the cyclone dust collector can be reduced.

[0020] 2. The exhaust gas treatment cyclone dust collector device described in the present invention has an air flow pipe that can rotate. When a single cyclone dust collector is working, the exhaust gas only needs to pass through the air inlet pipe, and then the filtered exhaust gas is discharged to the negative pressure machine through the air duct. When the cyclone dust collectors need to be connected in series, the air flow pipe of the cyclone dust collector that first introduces the exhaust gas is rotated to make the output end of the air flow pipe face the second cyclone dust collector, and at the same time, the second cyclone dust collector is rotated to make the air inlet pipe of the second cyclone dust collector dock with the air flow pipe of the first cyclone dust collector, so that the exhaust gas can enter the second cyclone dust collector for secondary treatment. The same operation is required to continue to connect the cyclone dust collectors in series. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 It is a three-dimensional diagram of the cyclone dust removal tank of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the connection of two cyclone dust removal tanks of the present invention;

[0025] Figure 4 is a cross-sectional view of the cyclone dust removal tank of the present invention;

[0026] Figure 5is a three-dimensional diagram of the recovery seat of the present invention;

[0027] In the figure: 1. Cyclone dust collector; 2. Adjustment rail; 3. Negative pressure machine; 4. Support frame; 5. Inlet pipe; 6. Support seat; 8. Recovery seat; 9. Air flow pipe; 10. Adjustment valve; 11. Restraining frame; 12. Transfer pipe; 13. Discharge pipe; 14. Extension pipe; 15. Air duct; 16. Feeding valve; 17. Storage strip; 18. Three-way valve; 19. Discharge trough; 20. Drain valve. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figures 1 to 5 As shown, a cyclone dust removal device for treating exhaust gas according to an embodiment of the present invention comprises a plurality of cyclone dust removal tanks 1, wherein the plurality of cyclone dust removal tanks 1 are linearly and equidistantly arranged, a plurality of negative pressure machines 3 are arranged on one side of the cyclone dust removal tank 1, an air flow pipe 9 is connected to the air output end of the cyclone dust removal tank 1, and the air flow pipe 9 can be connected to the input end of the adjacent cyclone dust removal tank 1, and can also be connected to the negative pressure machine 3, and a wear-resistant coating is applied on the inner wall of the cyclone dust removal tank 1;

[0030] During the salt processing, such as the drying process, the tail gas generated during the drying process contains salt particles. In order to reduce the consumption of salt, the salt in the tail gas needs to be recovered and processed. However, the tail gas volume is large and the particles are small. Using a filtering device with filtering parts will result in the inability to process a large amount of tail gas in a short time, and the filtered particles are difficult to be cleanly recovered;

[0031] By setting up multiple cyclone dust collectors 1, when the particles in the exhaust gas are large, the exhaust gas can be directly passed into the cyclone dust collector 1, so that the exhaust gas can generate a spiral airflow in the cyclone dust collector 1. Under the centrifugal effect, the particles in the exhaust gas are separated from the gas, and the negative pressure machine 3 is used to generate negative pressure to extract the clean airflow after the cyclone dust collector 1 has removed the dust. When the particles are small, in order to ensure the cleanliness of the exhaust gas treatment, the adjacent cyclone dust collectors 1 can be connected. After the first cyclone dust collector 1 treats the exhaust gas, the treated exhaust gas is passed through the airflow pipe 9 and then introduced into the second cyclone dust collector 1 for secondary treatment. By detecting the air discharged from the exhaust pipe 13, it is confirmed that the exhaust gas is Whether it is processed cleanly, through this arrangement, multiple cyclone dust collectors 1 can be connected in series according to different exhaust gases, so as to increase the processing effect on particles in the exhaust gas, and the spare cyclone dust collectors 1 can also work independently, and there will be no phenomenon that many cyclone dust collectors 1 cannot work. Moreover, since it is the centrifugal filtration work of the cyclone dust collector 1, the internal structure is simple, and the separated particles will be recovered from the bottom of the cyclone dust collector 1, and there is no need to contact the filtering parts, so that the filtration speed is faster and the filtered particles will not be contaminated. At the same time, after the cyclone dust collector 1 is used for a long time, the particles are easy to damage the inner wall of the cyclone dust collector 1. By applying a wear-resistant coating on the inner wall, the damage to the cyclone dust collector 1 can be reduced.

[0032] like Figures 1 to 5 As shown, the top of the cyclone dust collector 1 is fixedly connected with a vertical air duct 15, the bottom of the air flow pipe 9 is rotatably connected to the bottom of the air duct 15, and the outer side of the cyclone dust collector 1 is fixedly connected with an air inlet pipe 5 tangential to the outer side of the cyclone dust collector 1;

[0033] During operation, the airflow pipe 9 can rotate. When a single cyclone dust collector 1 is working, it is only necessary to let the exhaust gas pass through the air inlet pipe 5, and then the filtered exhaust gas is discharged to the negative pressure machine 3 through the air duct 15. When the cyclone dust collectors 1 need to be connected in series, the airflow pipe 9 of the cyclone dust collector 1 that first introduces the exhaust gas is rotated, and the output end of the airflow pipe 9 is directed toward the second cyclone dust collector 1. At the same time, the second cyclone dust collector 1 is rotated, and the air inlet pipe 5 of the second cyclone dust collector 1 is connected to the airflow pipe 9 of the first cyclone dust collector 1. In this way, the exhaust gas can enter the second cyclone dust collector 1 for secondary treatment. The same operation is required to continue to connect the cyclone dust collectors 1 in series.

[0034] like Figures 1 to 5 As shown, a support frame 4 is fixedly connected to the outer side of the cyclone dust collector 1, and a recovery seat 8 is provided at the bottom of the cyclone dust collector 1. The recovery seat 8 is fixedly connected to the support frame 4, and the bottom of the recovery seat 8 is rotatably connected to a support seat 6;

[0035] During operation, the support frame 4 is used to reinforce the cyclone dust collector tank 1. The recovery seat 8 is connected to the inside of the cyclone dust collector tank 1 and is used to recover particles. The recovery seat 8 can rotate above the support seat 6. The support seat 6 needs to be fixed to the foundation to ensure the stability of the cyclone dust collector tank 1. After the cyclone dust collector tank 1 is rotated into place, the recovery seat 8 is fixed to the support seat 6 with bolts.

[0036] like Figures 1 to 5 As shown, the input end of the negative pressure machine 3 is fixedly connected with a transfer pipe 12, the output end of the negative pressure machine 3 is fixedly connected with a discharge pipe 13, and an adjustment rail 2 is arranged below the negative pressure machine 3, and the bottom of the negative pressure machine 3 is slidably connected to the adjustment rail 2;

[0037] During operation, the transfer tube 12 is connected to the airflow tube 9, and the connection can be released. The negative pressure machine 3 can slide on the adjustment rail 2 to adapt to the direction of the adjusted airflow tube 9 to ensure that the transfer tube 12 and the airflow tube 9 can be connected.

[0038] like Figures 1 to 5 As shown, the airflow pipe 9 is arranged in a bent shape, and an adjustment valve 10 is fixedly connected to the outer side of the airflow pipe 9, and the adjustment valve 10 is used to switch the output direction of the airflow pipe 9;

[0039] During operation, in order to allow the two cyclone dust collectors 1 to dock smoothly, the airflow tubes 9 of the two series-connected cyclone dust collectors 1 need to be rotated so that the second airflow tube 9 does not block the first airflow tube 9. After the second airflow tube 9 rotates, the flow direction of the airflow is changed through the adjustment valve 10, so that the transfer tube 12 of the negative pressure machine 3 is directly docked with the adjustment valve 10 to complete the transmission of negative pressure.

[0040] like Figures 1 to 5 As shown, a plurality of feeding valves 16 are installed on the top of the cyclone dust collector 1 near the edge, and the plurality of feeding valves 16 are arranged equidistantly in a ring shape, and an inclined chamfer is provided at the bottom of the internal connection between the air inlet pipe 5 and the cyclone dust collector 1;

[0041] During operation, after the cyclone dust collector 1 has been working for a long time, the particles in the exhaust gas will continue to rub against the inner wall of the cyclone dust collector 1, and the wear-resistant coating will also be gradually worn. After using it for a period of time, the feeding valve 16 is opened, and the liquefied coating is slowly injected into the interior of the cyclone dust collector 1. The coating flows downward along the inner wall of the cyclone dust collector 1, and at the same time, a clean airflow is introduced into the interior of the cyclone dust collector 1. The airflow will form a vortex inside the cyclone dust collector 1, so that the coating flowing on the inner wall will be more evenly diffused. The airflow introduced at the beginning can be at a higher temperature. After the coating liquid has been injected for a period of time, it is replaced with air at a lower temperature, which helps the hot melt coating liquid to set. Through this arrangement, a new wear-resistant coating can be continuously applied to the inner wall of the cyclone dust collector 1, thereby improving the service life of the cyclone dust collector 1, and there is no need to disassemble the cyclone dust collector 1. The chamfered connection between the air inlet pipe 5 and the cyclone dust collector 1 can prevent the coating liquid from transferring to the outside of the air inlet pipe 5.

[0042] like Figures 1 to 5 As shown, a plurality of annular storage bars 17 are fixedly connected to the inner wall of the cyclone dust collector tank 1, and the plurality of storage bars 17 are arranged vertically and equidistantly;

[0043] During operation, in order to ensure uniform coating, multiple storage strips 17 are set up, and the injected coating liquid will accumulate on the top of the storage strips 17 until it can no longer accumulate, and then it will gradually penetrate outward. Since the coating liquid has a certain viscosity and surface tension, it will flow downward in a relatively uniform covering manner, and accumulate and overflow on the next storage strip 17. At the same time, combined with the internal spiral airflow, it can further ensure that the coating is evenly applied to the inner wall of the cyclone dust collector 1.

[0044] like Figures 1 to 5 As shown, the vertical cross-section of the storage bar 17 is arranged in a concave shape with high sides and a low center, and the height of the side of the storage bar 17 that is in contact with the inner wall of the cyclone dust collector tank 1 is higher than the other side that is away from the inner wall. A drain valve 20 connected to the interior is installed on the outer side of the cyclone dust collector tank 1, and the drain valve 20 is connected to the concave part of the storage bar 17;

[0045] During operation, the coating liquid will be concentrated in the concave part and then overflow to the end away from the cyclone dust collector tank 1. When the coating liquid starts to be recovered at the bottom of the cyclone dust collector tank 1, the drain valve 20 is used to recover the accumulated coating liquid, which ensures that the coating liquid covers the inner wall of the cyclone dust collector tank 1 and does not cause the coating liquid to solidify and accumulate in the storage strip 17.

[0046] like Figures 1 to 5 As shown, a three-way discharge trough 19 is provided inside the recovery seat 8, two outlets of the three-way discharge trough 19 are located in the horizontal direction, and the two outlets are symmetrically arranged, and a three-way valve 18 is installed at the top outlet of the three-way discharge trough 19;

[0047] During operation, when exhaust gas treatment is performed, the top and one of the side outlets are connected so that the filtered particles can be recovered. When coating liquid is covered, the top and the other side outlet are connected so that the coating liquid can be smoothly recovered. They are not affected by each other and are adjusted through the three-way valve 18.

[0048] like Figures 1 to 5 As shown, the end of the airflow pipe 9 is slidably connected with an extension pipe 14, and the extension pipe 14 is parallel to the output end of the airflow pipe 9. The top of the cyclone dust removal tank 1 is fixedly connected with a restraining frame 11 for supporting the airflow pipe 9;

[0049] During operation, the rotational stability of the airflow tube 9 is reinforced by the restraining frame 11, and the extension tube 14 is used to connect the airflow tube 9 and the transfer tube 12, or the airflow tube 9 and the air inlet pipe 5, to ensure the smooth flow of the airflow.

[0050] During operation, by setting up multiple cyclone dust collectors 1, when the particles in the exhaust gas are large, the exhaust gas can be directly passed into the cyclone dust collector 1, so that the exhaust gas can generate a spiral airflow in the cyclone dust collector 1, and the particles in the exhaust gas are separated from the gas under the centrifugal action. At the same time, a negative pressure machine 3 is used to generate negative pressure to extract the clean airflow after the cyclone dust collector 1 has removed the dust. When the particles are small, in order to ensure the cleanliness of the exhaust gas treatment, the adjacent cyclone dust collectors 1 can be connected. After the first cyclone dust collector 1 has treated the exhaust gas, the treated exhaust gas is passed through the airflow pipe 9 and then introduced into the second cyclone dust collector 1 for secondary treatment. The exhaust gas is confirmed by detecting the air discharged from the exhaust pipe 13. Whether the exhaust gas is cleanly treated, through this setting, multiple cyclone dust collectors 1 can be connected in series according to different exhaust gases, so as to increase the treatment effect of particles in the exhaust gas, and the spare cyclone dust collectors 1 can also work independently, and there will be no phenomenon that many cyclone dust collectors 1 cannot work. Moreover, since it is the centrifugal filtering work of the cyclone dust collector 1, the internal structure is simple, and the separated particles will be recovered from the bottom of the cyclone dust collector 1, and there is no need to contact the filtering parts, so that the filtering speed is faster and the filtered particles will not be contaminated. At the same time, after the cyclone dust collector 1 is used for a long time, the particles are easy to damage the inner wall of the cyclone dust collector 1. By applying a wear-resistant coating on the inner wall, the damage to the cyclone dust collector 1 can be reduced;

[0051] The airflow pipe 9 can rotate. When a single cyclone dust collector 1 is working, it is only necessary to pass the exhaust gas through the air inlet pipe 5, and then the filtered exhaust gas is discharged to the negative pressure machine 3 through the air duct 15. When the cyclone dust collectors 1 need to be connected in series, the airflow pipe 9 of the cyclone dust collector 1 that first introduces the exhaust gas is rotated, and the output end of the airflow pipe 9 is directed toward the second cyclone dust collector 1. At the same time, the second cyclone dust collector 1 is rotated, and the air inlet pipe 5 of the second cyclone dust collector 1 is connected to the airflow pipe 9 of the first cyclone dust collector 1. In this way, the exhaust gas can enter the second cyclone dust collector 1 for secondary treatment. If the cyclone dust collectors 1 need to be connected in series, the operation is the same;

[0052] The support frame 4 is used to reinforce the cyclone dust collector 1. The recovery seat 8 is connected to the inside of the cyclone dust collector 1 and is used to recover particles. The recovery seat 8 can rotate above the support seat 6. The support seat 6 needs to be fixed to the foundation to ensure the stability of the cyclone dust collector 1. After the cyclone dust collector 1 is rotated into place, the recovery seat 8 is fixed to the support seat 6 with bolts;

[0053] The transfer tube 12 is connected to the airflow tube 9, and the connection can be released. The negative pressure machine 3 can slide on the adjustment rail 2 to adapt to the direction of the adjusted airflow tube 9, ensuring that the transfer tube 12 and the airflow tube 9 can be connected;

[0054] In order to allow the two cyclone dust collectors 1 to be docked smoothly, the airflow pipes 9 of the two series-connected cyclone dust collectors 1 need to be rotated so that the second airflow pipe 9 does not block the first airflow pipe 9. After the second airflow pipe 9 is rotated, the flow direction of the airflow is changed through the adjustment valve 10, so that the transfer pipe 12 of the negative pressure machine 3 is directly docked with the adjustment valve 10 to complete the transmission of negative pressure.

[0055] After the cyclone dust collector 1 has been working for a long time, the particles in the exhaust gas will continue to rub against the inner wall of the cyclone dust collector 1, and the wear-resistant coating will also be gradually worn. After using it for a period of time, the feeding valve 16 is opened, and the liquefied coating is slowly injected into the interior of the cyclone dust collector 1. The coating flows downward along the inner wall of the cyclone dust collector 1, and at the same time, a clean airflow is introduced into the interior of the cyclone dust collector 1. The airflow will form a vortex inside the cyclone dust collector 1, so that the coating flowing on the inner wall will be more evenly diffused. The airflow introduced at the beginning can be of higher temperature. After the coating liquid has been injected for a period of time, it is replaced with air of lower temperature, which is helpful for the shaping of the hot-melt coating liquid. Through this setting, a new wear-resistant coating can be continuously applied to the inner wall of the cyclone dust collector 1, thereby improving the service life of the cyclone dust collector 1, and there is no need to disassemble the cyclone dust collector 1. The chamfered connection between the air inlet pipe 5 and the cyclone dust collector 1 can prevent the coating liquid from transferring to the outside of the air inlet pipe 5;

[0056] In order to ensure uniform coating, multiple storage strips 17 are provided, and the injected coating liquid will be accumulated on the top of the storage strips 17 until it can no longer be accumulated, and then it will gradually penetrate outward. Since the coating liquid has a certain viscosity and surface tension, it will flow downward in a relatively uniform covering manner, and accumulate and overflow on the next storage strip 17. At the same time, with the internal spiral airflow, it can further ensure that the coating is evenly coated on the inner wall of the cyclone dust removal tank 1;

[0057] The coating liquid will be concentrated in the concave part, and then overflow to the end away from the cyclone dust removal tank 1. When the coating liquid starts to be recovered at the bottom of the cyclone dust removal tank 1, the accumulated coating liquid is recovered by using the drain valve 20, which ensures that the coating liquid covers the inner wall of the cyclone dust removal tank 1 and does not cause the coating liquid to solidify and accumulate in the storage strip 17.

[0058] When exhaust gas treatment is performed, the top and one of the side outlets are connected so that the filtered particles can be recovered. When coating liquid is covered, the top and another side outlet are connected so that the coating liquid can be recovered smoothly. The three-way valve 18 is used to adjust the two outlets without affecting each other.

[0059] The rotational stability of the airflow tube 9 is reinforced by the restraining frame 11, and the extension tube 14 is used to connect the airflow tube 9 and the transfer tube 12, or the airflow tube 9 and the air intake pipe 5, to ensure the smooth flow of air.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cyclone dust removal device for tail gas treatment, characterized in that: The invention comprises a plurality of cyclone dust removal tanks (1), wherein the plurality of cyclone dust removal tanks (1) are linearly and equidistantly arranged, a plurality of negative pressure machines (3) are arranged on one side of the cyclone dust removal tank (1), an air output end of the cyclone dust removal tank (1) is connected to an air flow pipe (9), the air flow pipe (9) can be connected to an air inlet pipe (5) at an input end of an adjacent cyclone dust removal tank (1), and can also be connected to the negative pressure machine (3), and the inner wall of the cyclone dust removal tank (1) is coated with a wear-resistant coating; The top of the cyclone dust collector tank (1) is fixedly connected to a vertical air duct (15), the bottom of the air flow pipe (9) is rotatably connected to the bottom of the air duct (15), and the outer side of the cyclone dust collector tank (1) is fixedly connected to an air inlet pipe (5) tangential to the outer side of the cyclone dust collector tank (1); The outer side of the cyclone dust collector tank (1) is fixedly connected to a support frame (4), the bottom of the cyclone dust collector tank (1) is provided with a recovery seat (8), the recovery seat (8) is fixedly connected to the support frame (4), and the bottom of the recovery seat (8) is rotatably connected to a support seat (6); The input end of the negative pressure machine (3) is fixedly connected to a transfer pipe (12), the output end of the negative pressure machine (3) is fixedly connected to a discharge pipe (13), an adjustment rail (2) is provided below the negative pressure machine (3), and the bottom of the negative pressure machine (3) is slidably engaged with the adjustment rail (2); The airflow tube (9) is arranged in a bent shape, and an adjustment valve (10) is fixedly connected to the outer side of the airflow tube (9), and the adjustment valve (10) is used to switch the output direction of the airflow tube (9); A plurality of feeding valves (16) are installed on the top of the cyclone dust removal tank (1) near the edge, and the plurality of feeding valves (16) are arranged in a circular shape and at equal intervals, and an inclined chamfer is provided at the bottom of the internal connection between the air inlet pipe (5) and the cyclone dust removal tank (1); A plurality of annular storage bars (17) are fixedly connected to the inner wall of the cyclone dust removal tank (1), and the plurality of storage bars (17) are arranged vertically and equidistantly; The vertical cross-section of the storage bar (17) is arranged in a concave shape with high sides and a low center, and the height of the side of the storage bar (17) that is in contact with the inner wall of the cyclone dust removal tank (1) is higher than the other side that is away from the inner wall. A drain valve (20) connected to the interior is installed on the outside of the cyclone dust removal tank (1), and the drain valve (20) is connected to the concave part of the storage bar (17).

2. The tail gas treatment cyclone dust removal device according to claim 1, characterized in that: A three-way discharge trough (19) is provided inside the recovery seat (8), two outlets of the three-way discharge trough (19) are located in a horizontal direction, and the two outlets are symmetrically arranged, and a three-way valve (18) is installed at the top outlet of the three-way discharge trough (19).

3. The tail gas treatment cyclone dust removal device according to claim 2, characterized in that: An extension tube (14) is slidably connected to the end of the airflow tube (9), and the extension tube (14) is parallel to the output end of the airflow tube (9). A restraining frame (11) for supporting the airflow tube (9) is fixedly connected to the top of the cyclone dust removal tank (1).

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