Waste gas treatment device for nano calcium carbonate powder production

Abstract

The invention discloses a waste gas treatment device for nano calcium carbonate powder production, and relates to the technical field of waste gas treatment, the waste gas treatment device comprises a treatment box, an upper cover, a lower cover and a gas-liquid separator, a first filter screen cylinder, a first mounting frame, a second filter screen cylinder and a third flow guide pipeline are sequentially arranged at the top of the lower cover from outside to inside, a plurality of refrigeration pieces are fixedly arranged on the outer side of the first filter screen cylinder in a penetrating mode, a plurality of arc-shaped filter screens are fixedly connected to the top of the first mounting frame, and a water guide pipe is fixedly connected between every two adjacent arc-shaped filter screens. A plurality of nozzles are fixedly mounted at the position, close to the second filter screen cylinder, of the outer side of the water guide pipe, the atomized desulfurizing agent further has the back flushing effect on the second filter screen cylinder, after the atomized desulfurizing agent reacts with waste gas, the desulfurizing agent and particulate matter intercepted in the second filter screen cylinder are mixed to form waste water, and the heavy waste water naturally falls down and is accumulated at the bottom of an inner cavity of the treatment box. Dust and impurities are prevented from being accumulated on the second filter screen cylinder, and smoothness of the second filter screen cylinder is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically a waste gas treatment device for the production of nano-calcium carbonate powder. Background Technology

[0002] Calcium carbonate powder is made from calcium carbonate minerals such as calcite and marble through dry grinding. It is a commonly used white inorganic filler and is widely used in industries such as coatings, paints, plastics, rubber, daily chemicals, and building materials. During the calcium carbonate production process, the calcination step generates a large amount of exhaust gas. Direct emission of high-concentration CO2 exhaust gas can cause dust pollution to the surrounding environment. Therefore, waste gas treatment devices are used in the calcium carbonate powder production process.

[0003] For example, the invention disclosed in CN117463083B provides a waste gas treatment device for calcium carbonate powder production, including a first cylinder, a second cylinder, a cylinder cover, and a dust collection structure; the cylinder cover is installed on the top of the first cylinder, the second cylinder is installed inside the first cylinder, and a cavity is formed between the outer wall of the second cylinder and the inner wall of the first cylinder; an air inlet pipe is provided on the top of the outer wall of the first cylinder, and an exhaust pipe is provided on the cylinder cover; the dust collection structure is installed inside the first cylinder, and multiple brush rings are provided on the dust collection structure, forming multiple dust collection zones inside the cavity and inside the second cylinder.

[0004] Taking the aforementioned waste gas treatment device as an example, a multi-stage filtration structure is set up to filter the waste gas. Although a filter cleaning structure is set up, the cleaning structure can only clean and unclog the filter structure. However, the cleaned dust still accumulates on the filter structure. The multi-stage filtration structure causes the dust to accumulate in multiple unconnected locations, which in turn affects the discharge speed of the accumulated dust inside the waste gas treatment device, resulting in a longer maintenance time for the waste gas treatment device. Summary of the Invention

[0005] The purpose of this invention is to provide a waste gas treatment device for the production of nano-calcium carbonate powder, so as to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waste gas treatment device for the production of nano-calcium carbonate powder, comprising a treatment box, an upper cover, a lower cover, and a gas-liquid separator. The lower cover is fixedly installed at the bottom of the inner cavity of the treatment box. From the outside to the inside, the top of the lower cover is provided with a filter screen cylinder one, a mounting frame one, a filter screen cylinder two, and a guide pipe three. Multiple cooling fins are fixedly inserted through the outer side of the filter screen cylinder one. Multiple arc-shaped filter screens are fixedly connected to the top of the mounting frame one. A water guide pipe is fixedly connected between two adjacent arc-shaped filter screens. The outer side of the water guide pipe is located near the filter screen cylinder two. Multiple nozzles are fixedly installed on the top. A rubber plate is fixedly connected to the outer side of one of the water guide pipes near the filter screen cylinder. From the outside to the inside, the top of the treatment box is provided with mounting bracket three, mounting bracket two, and fixing bracket two. Multiple water guide pipes are fixedly connected to the bottom of mounting bracket two. The mounting bracket two is connected to a water supply component. Gear one is fixedly installed on the outer side of mounting bracket two. The gas-liquid separator includes a drive shaft. A transmission component is provided between the drive shaft and gear one. A sewage discharge component is provided at the bottom of the lower cover. A guide pipe eight is provided between the gas-liquid separator and the sewage discharge component.

[0007] Preferably, the top cover is fixedly installed on the top of the processing box, the mounting bracket three is fixedly installed inside the processing box, the fixing bracket two is fixedly installed on the outside of the guide pipe three, one end of the guide pipe three extends to the outside of the processing box, the guide pipe three is fixedly connected to the processing box, and the mounting bracket two is rotatably connected between the fixing bracket two and the mounting bracket three.

[0008] Preferably, the filter cylinder is fixedly installed between the mounting bracket and the lower cover. A heat sink is fixedly connected to the outside of the cooling chip. One end of the heat sink extends to the outside of the processing box. The heat sink is fixedly connected to the processing box. Two fans are installed inside the heat sink. Fixing brackets are fixedly connected to the inner wall of the heat sink on both sides of the fans.

[0009] Preferably, the mounting bracket one is rotatably connected to the top of the lower cover, the top of the arc-shaped filter screen is fixedly connected to the mounting bracket two, and the positions of the nozzles fixedly installed on the outside of the water guide pipe are staggered.

[0010] Preferably, the water supply component includes an annular support frame rotatably connected inside the mounting frame two. A flow guide pipe one is fixedly inserted on both sides of the top of the annular support frame. A flow guide pipe two is fixedly connected between the two flow guide pipes one. The flow guide pipe one passes through the upper cover and is fixedly connected to the upper cover.

[0011] Preferably, the filter cylinder 2 is fixedly connected between the fixing frame 2 and the lower cover. The outer side of the flow guide pipe 3 is provided with multiple exhaust holes 1. The bottom of the inner cavity of the flow guide pipe 3 is fixedly connected with a pneumatic cylinder 1 and a telescopic pipe 1. The piston end of the pneumatic cylinder 1 is fixedly connected with a circular plate. The top end of the telescopic pipe 1 is fixedly connected to the circular plate. The outer side of the circular plate is fixedly installed with a flow guide pipe 4. The outer side of the flow guide pipe 4 is provided with multiple exhaust holes 2. The exhaust holes 2 correspond one-to-one with the exhaust holes 1.

[0012] Preferably, the transmission assembly includes a clutch fixedly inserted into the processing box, the bottom end of the transmission shaft is fixedly connected to the input end of the clutch, and a second gear is fixedly connected to the outer side of the output end of the clutch, the second gear meshing with the first gear.

[0013] Preferably, a separation box is rotatably mounted on the outside of the drive shaft. Two fixing brackets are fixedly connected between the separation box and the outer wall of the processing box. A drive motor is fixedly connected to the top of the separation box. The output end of the drive motor is fixedly connected to the drive shaft. An impeller is fixedly mounted on the outside of the drive shaft. Multiple exhaust holes are opened on the top of the impeller. The impeller is located inside the separation box. A solenoid valve is fixedly connected to the bottom of the outside of the separation box. The solenoid valve is fixedly connected to a guide pipe eight. A guide pipe nine is fixedly connected to the top of the separation box.

[0014] Preferably, both sides of the top of the mounting bracket 3 are fixedly provided with flow guiding pipes 5, and a flow distribution box 1 is fixedly connected between the two mounting brackets 3. A three-way valve is fixedly connected to the top of the flow distribution box 1 after passing through the top cover. A flow guiding pipe 7 is fixedly connected between the normally open end of the three-way valve and the separation box, and a flow guiding pipe 6 is fixedly connected to the normally closed end of the three-way valve.

[0015] Preferably, the sewage discharge assembly includes a sewage discharge pipe fixedly connected to the bottom of the lower cover, a connecting plate disposed inside the sewage discharge pipe, a telescopic pipe II fixedly connected to the top of the connecting plate, and three plug rods. The top ends of the three plug rods all penetrate the lower cover and extend into the processing box. The top ends of the three plug rods are respectively disposed between the filter cylinder I and the mounting frame I, between the mounting frame I and the filter cylinder II, and inside the filter cylinder II. The top of the telescopic pipe II is fixedly connected to the bottom of the lower cover. The telescopic pipe II is provided with a telescopic rod and a pneumatic cylinder II. The outer walls of the telescopic rod and the pneumatic cylinder II are fixedly connected to the lower cover. The piston ends of the telescopic rod and the pneumatic cylinder II are fixedly connected to the connecting plate. The bottom end of the guide pipe VIII is fixedly connected to the sewage discharge pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When this application is used, the hydraulic pressure inside the water guide pipe increases, and the desulfurizing agent is atomized by multiple nozzles and sprayed onto the filter cylinder two. The nozzles, which are fixedly installed on the outside of the water guide pipe, are staggered. The atomized desulfurizing agent sprayed by multiple nozzles completely covers the outside of the filter cylinder two. After atomization, the desulfurizing agent collides with the flowing exhaust gas to desulfurize the exhaust gas. After atomization, the desulfurizing agent also acts as a backflushing agent for the filter cylinder two. After reacting with the exhaust gas, the desulfurizing agent mixes with the particulate matter trapped inside the filter cylinder two to form wastewater. The wastewater is heavier and naturally falls and accumulates at the bottom of the inner cavity of the treatment box, avoiding the accumulation of dust and impurities on the filter cylinder two and ensuring the unobstructed flow of the filter cylinder two.

[0018] 2. When this application is used, a guide pipe seven is fixedly connected between the normally open end of the three-way valve and the separation box in the gas-liquid separator. The waste gas that has been initially filtered of water enters the gas-liquid separator for water removal. The CO2 in the waste gas is treated by filtration, dust removal, desulfurization, and water removal. The CO2 in the waste gas containing high concentration of CO2 generated during the production of nano-calcium carbonate powder is recovered, which avoids environmental pollution. At the same time, the recovery of CO2 that can be used in industrial production can reduce the production cost of nano-calcium carbonate powder. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the separation box of the present invention;

[0021] Figure 3 This is a cross-sectional view of the processing box of the present invention;

[0022] Figure 4 for Figure 3 Enlarged view of the structure at point A;

[0023] Figure 5 This is a schematic diagram of the structure of the filter cylinder of the present invention;

[0024] Figure 6 This is a schematic diagram of the heat sink of the present invention;

[0025] Figure 7 This is a cross-sectional view of the water guide pipe of the present invention;

[0026] Figure 8 This is a cross-sectional view of the lower cover of the present invention;

[0027] Figure 9 This is a partial cross-sectional view of the flow guiding pipe three of the present invention;

[0028] Figure 10 This is a schematic diagram of the arc-shaped filter screen of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of the second fixing frame of the present invention;

[0030] Figure 12 This is a schematic diagram of the structure of the mounting bracket 2 of the present invention;

[0031] Figure 13 for Figure 1 Enlarged view of the structure at point B.

[0032] Numbered in the diagram: 1. Processing box; 2. Top cover; 3. Bottom cover; 4. Filter screen cylinder one; 5. Cooling element; 6. Heat sink; 7. Fan; 8. Fixing bracket one; 9. Mounting bracket one; 10. Arc-shaped filter screen; 11. Water guide pipe; 12. Nozzle; 13. Mounting bracket two; 14. Gear one; 15. Annular support frame; 16. Flow guide pipe one; 17. Flow guide pipe two; 18. Rubber plate; 19. Filter screen cylinder two; 20. Flow guide pipe three; 21. Exhaust port one; 22. Flow guide pipe four; 23. Exhaust port two; 24. Circular plate; 25. Pneumatic cylinder one; 26. 1. Telescopic pipe 1; 27. Fixed frame 2; 28. Mounting frame 3; 29. ​​Guide pipe 5; 30. Diverter box 1; 31. Three-way valve; 32. Guide pipe 6; 33. Guide pipe 7; 34. Fixed frame 3; 35. Separator box; 36. Drive motor; 37. Transmission shaft; 38. Impeller; 39. Exhaust port 3; 40. Clutch; 41. Gear 2; 42. Solenoid valve; 43. Guide pipe 8; 44. Sewage pipe; 45. Connecting plate; 46. Insert rod; 47. Telescopic pipe 2; 48. Telescopic rod; 49. Pneumatic cylinder 2; 50. Guide pipe 9. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example: Figures 1-13As shown, this invention provides a technical solution for a waste gas treatment device for the production of nano-calcium carbonate powder, including a treatment box 1, an upper cover 2, a lower cover 3, and a gas-liquid separator. The lower cover 3 is fixedly installed at the bottom of the inner cavity of the treatment box 1. From the outside to the inside, the top of the lower cover 3 is arranged with a filter screen cylinder 4, a mounting frame 9, a filter screen cylinder 19, and a guide pipe 20. Multiple cooling plates 5 are fixedly installed on the outside of the filter screen cylinder 4. Multiple arc-shaped filter screens 10 are fixedly connected to the top of the mounting frame 9. A water guide pipe 11 is fixedly connected between two adjacent arc-shaped filter screens 10. Multiple nozzles 12 are fixedly installed on the outside of the water guide pipe 11 near the filter screen cylinder 19. A rubber plate 18 is fixedly connected to the outside of one of the water guide pipes 11 near the filter screen cylinder 4. The top of the inner cavity of the treatment box 1 is arranged with a filter screen cylinder 4, a mounting frame 9, a gas-liquid separator, and a guide pipe 20. The waste gas treatment device consists of a three-tiered frame 28, a two-tiered mounting frame 13, and a two-tiered fixing frame 27. Multiple water pipes 11 are fixedly connected to the bottom of the two-tiered mounting frame 13. The two-tiered mounting frame 13 is connected to a water supply component. A gear 14 is fixedly installed on the outside of the two-tiered mounting frame 13. The gas-liquid separator includes a drive shaft 37. A transmission component is provided between the drive shaft 37 and the gear 14. A sewage discharge component is provided at the bottom of the lower cover 3. A flow guide pipe 8 43 is provided between the gas-liquid separator and the sewage discharge component. The waste gas treatment device consists of a treatment box 1, an upper cover 2, a lower cover 3, a gas-liquid separator, a filter screen cylinder 1 4, a one-tiered mounting frame 9, a filter screen cylinder 2 19, a flow guide pipe 3 20, multiple cooling plates 5, water pipes 11, multiple nozzles 12, a rubber plate 18, a three-tiered mounting frame 28, a two-tiered mounting frame 13, a two-tiered fixing frame 27, a sewage discharge component, and a flow guide pipe 8 43.

[0035] The application method of the waste gas treatment device is as follows:

[0036] Example 1: As Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown;

[0037] The top cover 2 is fixedly installed on the top of the treatment tank 1, and the mounting bracket 3 28 is fixedly installed inside the treatment tank 1. The fixing bracket 2 27 is fixedly installed on the outside of the diversion pipe 3 20. One end of the diversion pipe 3 20 extends to the outside of the treatment tank 1. The diversion pipe 3 20 is fixedly connected to the treatment tank 1. Under the action of the diversion pipe 3 20, the position of the fixing bracket 2 27 is fixed. The mounting bracket 2 13 is rotatably connected between the fixing bracket 2 27 and the mounting bracket 3 28. The mounting bracket 2 13 can rotate. The annular support bracket 15 in the water supply component is rotatably installed inside the mounting bracket 2 13. The annular support bracket 15 and the mounting bracket 2 13 can rotate relative to each other. The top two sides of the annular support bracket 15 are fixedly provided with diversion pipes 1 16. The two diversion pipes 1 16 are fixedly connected to the diversion pipe 2 17. The diversion pipe 2 17 is connected to the desulfurizing agent supply system. The diversion pipes 1 16 pass through the top cover 2 and are fixedly connected to the top cover 2. Therefore, the mounting bracket 2 13 can rotate.

[0038] The filter cylinder 4 is fixedly installed between the mounting frame 28 and the lower cover 3. The filter cylinder 4 and the inner wall of the treatment box 1 form an exhaust chamber. The mounting frame 9 is rotatably connected to the top of the lower cover 3. Multiple arc-shaped filter screens 10 are fixedly connected to the top of the mounting frame 9. The top of the arc-shaped filter screens 10 is fixedly connected to the mounting frame 13. A water guide pipe 11 is fixedly connected between two adjacent arc-shaped filter screens 10. The top of the water guide pipe 11 is fixedly connected to the mounting frame 13. The rotating mounting frame 13 can drive the filter frame composed of multiple arc-shaped filter screens 10 and multiple water guide pipes 11 to rotate on the top of the mounting frame 9. The outside of the filter frame and the inside of the filter cylinder 4 form a filter chamber. The filter cylinder 19 is fixedly connected between the mounting frame 27 and the lower cover 3. The inside of the filter frame and the outside of the filter cylinder 19 form a desulfurization chamber.

[0039] Multiple exhaust holes 1 21 are provided on the outside of the guide pipe 3 20 to supply exhaust gas into the guide pipe 3 20. The exhaust gas is discharged into various positions inside the filter cylinder 2 19 through the multiple exhaust holes 1 21. After passing through the filter cylinder 2 19, the exhaust gas enters the desulfurization chamber, where the filter cylinder 2 19 filters and traps particulate matter in the exhaust gas. At the same time, the desulfurizing agent supply system is controlled to supply desulfurizing agent into the mounting frame 2 13 through the guide pipe 2 17 and two guide pipes 1 16. The desulfurizing agent is diverted by the mounting frame 2 13 into multiple water pipes 11. As the hydraulic pressure inside the water pipes 11 increases, the desulfurizing agent is sprayed by multiple nozzles 1 2. After atomization, the desulfurizing agent is sprayed onto the filter cylinder 2 19. The nozzles 12, which are fixedly installed on the outside of different water guide pipes 11, are staggered. The atomized desulfurizing agent sprayed by multiple nozzles 12 completely covers the outside of the filter cylinder 2 19. After atomization, the desulfurizing agent collides with the flowing exhaust gas to desulfurize the exhaust gas. After atomization, the desulfurizing agent also has a backflushing effect on the filter cylinder 2 19. After reacting with the exhaust gas, the desulfurizing agent mixes with the particulate matter trapped inside the filter cylinder 2 19 to form wastewater. The wastewater is heavier and naturally falls and accumulates at the bottom of the inner cavity of the treatment box 1, avoiding the accumulation of dust and impurities on the filter cylinder 2 19 and ensuring the unobstructed flow of the filter cylinder 2 19.

[0040] The exhaust gas inside the desulfurization chamber passes through the arc-shaped filter screen 10 and enters the filter chamber. The exhaust gas inside the filter chamber passes through the filter screen cylinder 4 and enters the exhaust chamber. The exhaust gas entering the exhaust chamber is filtered twice by the arc-shaped filter screen 10 and the filter screen cylinder 4. The arc-shaped filter screen 10 and the filter screen cylinder 4 intercept water droplets in the exhaust gas, thus performing preliminary water filtration.

[0041] Both sides of the top of the mounting frame 328 are fixedly connected with guide pipes 529. The top of the diversion box 130, which is fixedly connected between the two mounting frames 328, passes through the top cover 2 and is fixedly connected with a three-way valve 31. The normally open end of the three-way valve 31 is fixedly connected with the separation box 35 in the gas-liquid separator by a guide pipe 73. The waste gas that has been initially filtered for water enters the gas-liquid separator for water removal. The CO2 in the waste gas is filtered for dust removal, desulfurization, and water removal. The CO2 in the waste gas containing high concentration of CO2 generated during the production of nano-calcium carbonate powder is recovered. While avoiding environmental pollution, the CO2 that can be used in industrial production can be recovered, which can reduce the production cost of nano-calcium carbonate powder.

[0042] Because the separation box 35, which is rotatably mounted on the outside of the drive shaft 37, is fixedly connected to the outer wall of the treatment box 1 by two fixed brackets 34, the relative position between the separation box 35 and the treatment box 1 remains unchanged. The output end of the drive motor 36, which is fixedly connected to the top of the separation box 35, is fixedly connected to the drive shaft 37. When the gas-liquid separator is working, the drive motor 36 drives the drive shaft 37 and the impeller 38 fixedly mounted on the outside of the drive shaft 37 to rotate. The guide pipe 33 extends into the separation box 35, with one end set at the bottom of the impeller 38. After the purified waste gas enters the separation box 35, the rotating impeller 38 agitates the waste gas and generates centrifugal force. The centrifugal force throws the liquid in the waste gas out and collides with the inner wall of the separation box 35. The gas passes through the top of the impeller 38. Multiple exhaust ports 39 are opened and enter the top of the impeller 38. The top of the separation box 35 is fixedly connected to the guide pipe 9 50, which is used to connect to the CO2 compression system. The gas is discharged into the CO2 compression system through the guide pipe 9 50 and is recovered and compressed. The liquid separated from the exhaust gas under the action of centrifugal force accumulates at the bottom of the inner cavity of the separation box 35. The guide pipe 7 33 is set at one end inside the separation box 35 at a certain distance from the bottom of the inner cavity of the separation box 35. The liquid is stored in the separation box 35. A solenoid valve 42 is fixedly connected to the bottom of the outer side of the separation box 35. The solenoid valve 42 is fixedly connected to the guide pipe 8 43. The solenoid valve 42 is controlled to open, and the liquid inside the separation box 35 enters the guide pipe 8 43.

[0043] Example 2, as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 11 As shown:

[0044] A rubber plate 18 is fixedly connected to the outer side of one of the water pipes 11 near the filter cylinder 4. The rubber plate 18 abuts against the filter cylinder 4 or the cooling plate 5. The cooling plate 5 is set inside the filter cylinder 4, and one end is set as a curved surface. The filter cylinder 4 and the cooling plate 5 form an outer filter element with a smooth inner wall. The axis of the outer filter element and the axis of the filter frame are on the same horizontal line. Therefore, the rubber plate 18 abuts against the outer filter element and can rotate to clean the inner wall of the outer filter element.

[0045] In the transmission assembly, clutch 40 is fixedly inserted into the processing box 1. The bottom end of the transmission shaft 37 is fixedly connected to the input end of clutch 40. Gear 41, fixedly connected to the outer side of the output end of clutch 40, meshes with gear 14. Gear 14 is fixedly installed on the outer side of mounting bracket 13. When the gas-liquid separator is working, clutch 40 is controlled to work. The rotational force of transmission shaft 37 is applied to clutch 40. After clutch 40 works, gear 41, fixedly connected to the output end, rotates. Gear 41 and gear 14 work together to drive mounting bracket 13 to rotate. Mounting bracket 13 drives the filter frame to rotate, and water droplets and impurities on the filter frame are thrown out, ensuring the cleanliness of the inner wall of the filter frame. Multiple nozzles Rotation 12 changes the flushing force on the same position on the outside of filter cylinder 2 19, ensuring the effectiveness of backflushing filter cylinder 2 19 and preventing internal clogging. Filter cylinder 2 19 can adapt to filtering exhaust gas with high particulate matter concentration. The rotation of the filter frame causes the exhaust gas entering the filter chamber to rotate, simultaneously controlling the operation of multiple cooling plates 5 inserted on filter cylinder 1 4. The cooling end of the cooling plate 5 is located inside the filter chamber. By causing the exhaust gas to rotate, all exhaust gas is ensured to contact the low-temperature cooling plate 5, filtering out water from the exhaust gas through condensation, relieving the water filtration burden on filter cylinder 1 4 and ensuring the quality of the initial water filtration of the exhaust gas. At the same time, the rubber plate 18 rotates to clean water droplets and impurities on the inner wall of filter cylinder 1 4 and cooling plate 5, ensuring that cooling plate 5 is in contact with the exhaust gas and improving the effectiveness of cooling plate 5. The water filtered by filter cylinder 1 4 and cooling plate 5 is stored at the bottom of the inner cavity of the treatment tank 1.

[0046] A heat sink 6 is fixedly connected to the outside of the cooling chip 5. The heat dissipation end of the cooling chip 5 is located inside the heat sink 6. One end of the heat sink 6 extends to the outside of the processing box 1. The heat sink 6 is fixedly connected to the processing box 1. The heat generated by the cooling chip 5 is discharged to the outside of the processing box 1 through the cooling chip 5. Two fans 7 are installed inside the heat sink 6. The two sides of the fans 7 are fixedly connected to the inner wall of the heat sink 6 by a fixing bracket 8. The fans 7 control the operation of the fans and accelerate the speed of hot air discharge from the heat sink 6 to ensure the working efficiency of the cooling chip 5.

[0047] Example 3, as Figure 1 , Figure 2 , Figure 8 and Figure 13 As shown:

[0048] In the sewage discharge assembly, the sewage pipe 44 is fixedly installed at the bottom of the lower cover 3. A connecting plate 45 inside the sewage pipe 44 is fixedly connected to a telescopic pipe 47 and three plug-in rods 46. The tops of the three plug-in rods 46 all penetrate the lower cover 3 and extend into the processing box 1. The top of the telescopic pipe 47 is fixedly connected to the bottom of the lower cover 3. The telescopic rod 48 and the outer wall of the pneumatic cylinder 49 inside the telescopic pipe 47 are both fixedly connected to the lower cover 3. Without affecting the up-and-down movement of the connecting plate 45, the telescopic pipe 47 provides protection for the telescopic rod 48 and the pneumatic cylinder 49. Both the retractor 48 and the piston end of the second pneumatic cylinder 49 are fixedly connected to the connecting plate 45. The operation of the second pneumatic cylinder 49 is controlled to push the connecting plate 45 downward. The connecting plate 45 drives the three plug rods 46 downward. Since the top ends of the three plug rods 46 are respectively located between the filter screen cylinder 4 and the mounting frame 9, between the mounting frame 9 and the filter screen cylinder 19, and inside the filter screen cylinder 19, when the three plug rods 46 move down into the drain pipe 44, the channels left by the plug rods 46 make the filter chamber, desulfurization chamber and the inside of the filter screen cylinder 19 all connected to the inside of the drain pipe 44.

[0049] Therefore, when it is necessary to discharge the wastewater inside the waste gas treatment device, the control cylinder 49 pushes the connecting plate 45 down, and the filter chamber, desulfurization chamber and filter screen cylinder 19 are all connected to the inside of the sewage pipe 44. The wastewater inside the filter chamber, desulfurization chamber and filter screen cylinder 19 enters the inside of the sewage pipe 44. At the same time, the control solenoid valve 42 is opened, and the wastewater inside the separation box 35 is discharged, completing the internal cleaning work of the waste gas treatment device. In the process of recovering CO2 from the waste gas, the particulate matter in the waste gas is mixed with the wastewater to increase its fluidity, which can quickly and labor-savingly complete the cleaning and discharge of pollutants generated by the waste gas treatment, ensuring the convenience of maintenance of the waste gas treatment device.

[0050] Example 4: Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown:

[0051] A pneumatic cylinder 25 and a telescopic tube 26 are fixedly connected to the bottom of the inner cavity of the flow guide pipe 20. A circular plate 24 is fixedly connected to the piston end of the pneumatic cylinder 25. The top end of the telescopic tube 26 is fixedly connected to the circular plate 24. The telescopic tube 26 and the circular plate 24 seal and protect the pneumatic cylinder 25. A flow guide pipe 22 is fixedly installed on the outside of the circular plate 24. Multiple exhaust holes 23 are opened on the outside of the flow guide pipe 22. The exhaust holes 23 correspond one-to-one with the exhaust holes 11. The pneumatic cylinder 25 is controlled to work and push the circular plate 24 to move upward, so that the exhaust holes 23 and the exhaust holes 11 are misaligned. Under the action of the flow guide pipe 22, the inside of the flow guide pipe 20 is no longer connected to the inside of the filter screen cylinder 219.

[0052] A guide pipe 6 32 is fixedly connected to the normally closed end of the three-way valve 31. The guide pipe 6 32 is connected to the water supply system. By controlling the normally closed end of the three-way valve 31 to open, the water supply system supplies water to the exhaust chamber through the guide pipe 6 32, the diversion box 1 30, and the two guide pipes 5 29. The control cylinder 2 49 pushes the connecting plate 45 down. The filter chamber, desulfurization chamber, and filter screen cylinder 2 19 are all connected to the inside of the drain pipe 44. The insertion rod 46 leaves a small channel, and the inside of the treatment box 1 is in a situation where the water inlet block drains slowly. The water entering the exhaust chamber can sequentially flush the filter screen cylinder 1 4, multiple arc-shaped filter screens 10, and filter screen cylinder 2 19, thoroughly cleaning the inside of the waste gas treatment device.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A waste gas treatment device for the production of nano-calcium carbonate powder, comprising a treatment box (1), an upper cover (2), a lower cover (3), and a gas-liquid separator, wherein the lower cover (3) is fixedly installed at the bottom of the inner cavity of the treatment box (1), characterized in that: The top of the lower cover (3) is arranged from the outside to the inside as follows: filter cylinder one (4), mounting bracket one (9), filter cylinder two (19), and guide pipe three (20). Multiple cooling plates (5) are fixedly inserted through the outside of filter cylinder one (4). Multiple arc-shaped filters (10) are fixedly connected to the top of mounting bracket one (9). A water guide pipe (11) is fixedly connected between two adjacent arc-shaped filters (10). Multiple nozzles (12) are fixedly installed on the outside of the water guide pipe (11) near the filter cylinder two (19). A rubber nozzle is fixedly connected to the side of one of the water guide pipes (11) near the filter cylinder one (4). The inner cavity of the treatment box (1) is provided with mounting bracket three (28), mounting bracket two (13) and fixing bracket two (27) in sequence from the outside to the inside. Multiple water guide pipes (11) are fixedly connected to the bottom of mounting bracket two (13). The mounting bracket two (13) is connected to a water supply component. Gear one (14) is fixedly installed on the outside of the mounting bracket two (13). The gas-liquid separator includes a drive shaft (37). A transmission component is provided between the drive shaft (37) and gear one (14). A sewage discharge component is provided at the bottom of the lower cover (3). A flow guide pipe eight (43) is provided between the gas-liquid separator and the sewage discharge component.

2. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The top cover (2) is fixedly installed on the top of the processing box (1), the mounting bracket three (28) is fixedly installed inside the processing box (1), the fixing bracket two (27) is fixedly installed on the outside of the guide pipe three (20), one end of the guide pipe three (20) extends to the outside of the processing box (1), the guide pipe three (20) is fixedly connected to the processing box (1), and the mounting bracket two (13) is rotatably connected between the fixing bracket two (27) and the mounting bracket three (28).

3. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The filter cylinder (4) is fixedly installed between the mounting bracket (28) and the lower cover (3). The cooling chip (5) is fixedly connected to the outside of the heat sink (6). One end of the heat sink (6) extends to the outside of the processing box (1). The heat sink (6) is fixedly connected to the processing box (1). Two fans (7) are installed inside the heat sink (6). Both sides of the fans (7) are fixedly connected to the inner wall of the heat sink (6) with a fixing bracket (8).

4. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The mounting bracket one (9) is rotatably connected to the top of the lower cover (3), the top of the arc-shaped filter screen (10) is fixedly connected to the mounting bracket two (13), and the nozzles (12) fixedly installed on the outside of the water guide pipe (11) are staggered.

5. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The water supply assembly includes an annular support frame (15) rotatably connected inside the mounting frame (13). Both sides of the top of the annular support frame (15) are fixedly provided with a first-level guide pipe (16). A second-level guide pipe (17) is fixedly connected between the two first-level guide pipes (16). The first-level guide pipe (16) passes through the upper cover (2) and is fixedly connected to the upper cover (2).

6. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The filter cylinder 2 (19) is fixedly connected between the fixing frame 2 (27) and the lower cover (3). Multiple exhaust holes 1 (21) are opened on the outside of the flow guide pipe 3 (20). A pneumatic cylinder 1 (25) and a telescopic pipe 1 (26) are fixedly connected to the bottom of the inner cavity of the flow guide pipe 3 (20). A circular plate (24) is fixedly connected to the piston end of the pneumatic cylinder 1 (25). The top end of the telescopic pipe 1 (26) is fixedly connected to the circular plate (24). A flow guide pipe 4 (22) is fixedly installed on the outside of the circular plate (24). Multiple exhaust holes 2 (23) are opened on the outside of the flow guide pipe 4 (22). The exhaust holes 2 (23) correspond one-to-one with the exhaust holes 1 (21).

7. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The transmission assembly includes a clutch (40) fixedly inserted on the processing box (1), the bottom end of the transmission shaft (37) is fixedly connected to the input end of the clutch (40), and a second gear (41) is fixedly connected to the outside of the output end of the clutch (40), and the second gear (41) meshes with the first gear (14).

8. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: A separation box (35) is rotatably mounted on the outside of the drive shaft (37). Two fixing brackets (34) are fixedly connected between the separation box (35) and the outer wall of the processing box (1). A drive motor (36) is fixedly connected to the top of the separation box (35). The output end of the drive motor (36) is fixedly connected to the drive shaft (37). An impeller (38) is fixedly mounted on the outside of the drive shaft (37). Multiple exhaust holes (39) are opened on the top of the impeller (38). The impeller (38) is located inside the separation box (35). A solenoid valve (42) is fixedly connected to the bottom of the outside of the separation box (35). The solenoid valve (42) is fixedly connected to the guide pipe (43). A guide pipe (50) is fixedly connected to the top of the separation box (35).

9. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 8, characterized in that: The top two sides of the mounting bracket three (28) are fixedly connected with flow guide pipe five (29). The two mounting brackets three (28) are fixedly connected with flow divider box one (30). The top of the flow divider box one (30) is fixedly connected with a three-way valve (31) after passing through the top cover (2). The normally open end of the three-way valve (31) is fixedly connected with flow guide pipe seven (33) and the normally closed end of the three-way valve (31) is fixedly connected with flow guide pipe six (32).

10. The waste gas treatment device for the production of nano-calcium carbonate powder according to claim 1, characterized in that: The sewage discharge assembly includes a sewage pipe (44) fixedly connected to the bottom of the lower cover (3), a connecting plate (45) disposed inside the sewage pipe (44), a telescopic pipe two (47) fixedly connected to the top of the connecting plate (45), and three plug rods (46). The top ends of the three plug rods (46) all penetrate the lower cover (3) and extend into the processing box (1). The top ends of the three plug rods (46) are respectively disposed between the inside of the filter cylinder one (4) and the mounting frame one (9), and between the inside of the mounting frame one (9) and the filter cylinder two (47). Between 19) and inside the filter cylinder 2 (19), the top of the telescopic tube 2 (47) is fixedly connected to the bottom of the lower cover (3). The telescopic tube 2 (47) is provided with a telescopic rod (48) and a pneumatic cylinder 2 (49). The outer walls of the telescopic rod (48) and the pneumatic cylinder 2 (49) are fixedly connected to the lower cover (3). The piston ends of the telescopic rod (48) and the pneumatic cylinder 2 (49) are fixedly connected to the connecting plate (45). The bottom end of the guide pipe 8 (43) is fixedly connected to the sewage pipe (44).

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