Purification production line for recovering nitrogen from ceramic carrier waste gas of automobile exhaust

Abstract

The invention discloses a purification production line for recovering nitrogen from ceramic carrier waste gas of automobile exhaust, and belongs to the technical field of nitrogen recovery. The input end and the output end of the filter are fixedly connected with a waste gas source and a compressor respectively; the output end of the compressor is fixedly connected with an ice maker, the output end of the ice maker is fixedly connected with a gas-liquid separator, and the gas outlet end of the gas-liquid separator is fixedly connected with a purification unit. According to the system, the waste gas of the user is recycled, the waste gas treatment process is simplified for the user, waste gas emission is reduced, the waste gas is recycled after being purified, the investment cost of user equipment is greatly reduced, nitrogen consumption is reduced, the occupied area of the equipment is reduced, and the production cost of the user is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of nitrogen recovery, in particular to a purification production line for recovering nitrogen from ceramic carrier waste gas used for automobile tail gas. Background Art

[0002] Currently, nitrogen is used as a protective gas in the production of ceramic carriers for automobile exhaust, and chemical solutions such as ethanol, amines, and ethers are added during the process. The nitrogen is contaminated during the production process and then discharged into the user's waste gas treatment system, resulting in a large amount of waste gas emissions. The discharged waste gas contains chemical solutions such as ethanol, amines, and ethers. The waste gas emissions do not meet the national direct discharge requirements and need to be purified to remove chemical solutions such as ethanol, amines, and ethers from the waste gas. This increases the cost of waste gas treatment equipment, and the large amount of nitrogen discharged after use also causes a lot of waste, resulting in increased production costs for users. Nitrogen is used as a protective gas in production. After being contaminated during the production process, it is discharged as waste gas, which results in a large amount of resource waste and leads to excessively high production costs. Waste treatment equipment consists of multi-stage adsorption purification equipment, and is also equipped with fans, incinerators and other equipment. The equipment is complex, occupies a large area, requires large investments and has high energy consumption.

[0003] Based on this, the present invention designs a purification production line for recovering nitrogen from ceramic carrier waste gas of automobile exhaust to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A purification production line for recovering nitrogen from exhaust gas using ceramic carriers for automobile exhaust, including filters; The input end and output end of the filter are fixedly connected to the exhaust gas source and the compressor respectively; The output end of the compressor is fixedly connected to the ice machine, the output end of the ice machine is fixedly connected to the gas-liquid separator, and the gas outlet end of the gas-liquid separator is fixedly connected to the purification unit.

[0006] Furthermore, the filter includes a box, a pulse generator, an air outlet pipe, a cloth bag and a cloth bag mounting plate, the cloth bag mounting plate is fixedly mounted on the inner wall of the box, multiple groups of cloth bags in a rectangular array are fixedly mounted on the bottom of the cloth bag mounting plate, the air outlet pipe is connected and fixedly mounted on the side wall of the box, and the air outlet pipe is arranged higher than the cloth bag mounting plate; The side wall of the box is fixedly connected with a rotating air inlet pipe for evenly distributing air, and the rotating air inlet pipe is set lower than the cloth bag; The air outlet pipe is fixedly connected to the input end of the compressor, and the outer end of the rotary air inlet pipe is fixedly connected to the exhaust gas source; The pulse generator is fixedly installed on the side wall of the box, and the output end of the pulse generator is fixedly connected to a backflush component for clearing blockage of a single row of cloth bags, and the air outlet end of the backflush component is located at the top of the cloth bag.

[0007] Furthermore, the rotating air intake pipe includes an air intake pipe, a rotating pipe, an air outlet, a support plate, fan blades, a second rotating shaft and a connecting block. The air intake pipe is fixedly mounted on the side wall of the box body, the support plate is fixedly mounted on the inner wall of the air intake pipe, the second rotating shaft is rotatably connected to the support plate through a bearing, multiple groups of fan blades are fixedly mounted on the outer end of the second rotating shaft at equal intervals along the circumferential direction, the inner end of the second rotating shaft is fixedly connected to the connecting block, and the outer end of the connecting block is fixedly connected to the rotating pipe, the rotating pipe and the air intake pipe are coaxially arranged and have the same inner diameter, and the rotating pipe is provided with an air outlet along the circumferential direction.

[0008] Furthermore, the rotating tube is rotatably connected to the inner wall of the box through a bearing.

[0009] Furthermore, the backflush assembly includes multiple groups of follow-up air intake assemblies, a group of synchronous adjustment assemblies, multiple groups of follow-up sealing assemblies and multiple groups of third straight pipes. The third straight pipes are arranged in a one-to-one correspondence with the cloth bags, and the air outlet ends of the third straight pipes are located at the upper end of the cloth bags. The multiple groups of third straight pipes are equally divided into multiple rows. The tops of the single rows of third straight pipes are connected to a group of follow-up air intake assemblies and a group of follow-up sealing assemblies. The synchronous adjustment assembly is movably connected to the follow-up air intake assembly and the follow-up sealing assembly. A group of synchronous adjustment assemblies is fixedly installed on the cloth bag mounting plate. The multiple groups of follow-up air intake assemblies are all fixedly connected to the output end of the pulse generator.

[0010] Furthermore, the follow-up air intake assembly includes a first spring, a cross tube, a straight cylinder, a first sliding rod, a second sliding rod, a valve core and a ball. The through holes on both sides of the middle end of the straight cylinder are fixedly connected to the cross tube. A group of cross tubes is fixedly connected to the output end of the pulse generator. The third straight tube is fixedly installed at the bottom of another group of cross tubes at equal intervals. The inner wall of the valve core is fitted and slidably connected to the inner wall of the straight cylinder. A vent is provided at the lower end of the valve core. The upper and lower ends of the valve core are fixedly connected to the second sliding rod and the first sliding rod. The top of the second sliding rod is fixedly connected to the top of the first spring, and the bottom of the first spring is fixedly connected to the top of the straight cylinder. The bottom of the first sliding rod is rotatably connected to the ball, and the ball is movably connected to the synchronous adjustment assembly. When the first spring is in its original state, the vent and the cross tube are staggered.

[0011] Furthermore, the follow-up blocking assembly includes a second spring, a connecting cross plate, a second V-shaped plate, a hinge seat, an n-shaped plate, a fixed block, a fan-shaped plate and a push rod. The second spring is sleeved on the outside of the third straight tube, and the upper and lower ends of the second spring are fixedly connected to another set of cross tubes and the connecting cross plate respectively. The second V-shaped plate is fixedly installed on the end of the connecting cross plate close to the straight tube, and the second V-shaped plate is movably connected to the synchronous adjustment assembly. The cloth bag mounting plate is fixedly connected with a hinge seat at equal intervals along the circumferential direction at the top of the cloth bag. The inner end of the hinge seat is fixedly connected to the fan plate, the outer wall of the fan plate is fixedly connected to the n-shaped plate, the inner wall of the n-shaped plate is fitted and slidably connected to the outer wall of the push rod, the outer end of the push rod is fixedly connected to the fixed block, and the fixed block is fixedly connected to the connecting cross plate. When the second spring is in its original state, the fan plate is in an open state. When the fan plate is at the lower end, all fan plates are in contact with the third straight tube and block the top of the cloth bag.

[0012] Furthermore, the connecting horizontal plate is slidably connected to the third straight pipe through the sliding hole.

[0013] Furthermore, the synchronous adjustment assembly includes a guide rail assembly, a threaded rod, a first V-shaped block, a second motor, a Z-shaped plate and a third V-shaped plate. The guide rail of the second motor and the guide rail assembly is fixedly connected to the top of the cloth bag mounting plate, the output end of the second motor is fixedly connected to the threaded rod, the Z-shaped plate is threadedly connected to the threaded rod through a threaded sleeve, and the bottom of the Z-shaped plate is fixedly connected to the slider of the guide rail assembly. One end of the Z-shaped plate is fixedly connected to the first V-shaped block used in conjunction with the sphere, and the other end of the Z-shaped plate is fixedly connected to the third V-shaped plate used in conjunction with the second V-shaped plate. The tip of the first V-shaped block faces upward, and the tip of the third V-shaped plate faces downward.

[0014] Beneficial effect: the waste gas of the present invention is sucked into the compressor through the filter and pressurized to the set pressure. The waste gas is pressurized by the compressor and then discharged to the ice machine. The ice machine cools the waste gas to the box-pulse generator ℃, so that the ethanol and other organic solvents in the waste gas are condensed and liquefied. Then the gas enters the gas-liquid separator, and gas-liquid separation is carried out in the gas-liquid separator. The condensed ethanol and other organic solvents gather in the gas-liquid separator. After reaching a certain amount in the gas-liquid separator, they are discharged for unified waste treatment; the waste gas separated by the gas-liquid separator is sent to the purification unit, and the molecular sieve in the purification unit adsorbs and dries the residual ethanol and other organic solvents and moisture. After adsorption, nitrogen (purity ≥99.9% N2) can be obtained and incorporated into the pipeline network at the pressure required by the user, completing the recovery and reuse of the user's waste gas, simplifying the waste gas treatment process for the user, reducing waste gas emissions, and allowing the waste gas to be recycled after purification, greatly reducing the user's equipment investment cost, saving nitrogen consumption, reducing equipment floor space and other problems, and greatly reducing the user's production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 This is a flow chart of a purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to the present invention; Figure 2 The filter of the present invention is three-dimensional Figure 1 ; Figure 3 It is a front view of the filter of the present invention; Figure 4 It is a left side view of the filter of the present invention; Figure 5 To follow Figure 3 AA direction cross-sectional view; Figure 6 To follow Figure 4 BB direction cross-sectional view; Figure 7 Three-dimensional installation of cloth bag mounting plate and its connecting structure Figure 1 ; Figure 8 Three-dimensional installation of cloth bag mounting plate and its connecting structure Figure 2 ; Figure 9 It is a front view of the bag mounting plate and its connecting structure; Figure 10 To follow Figure 9 CC direction cross-sectional view; Figure 11 for Figure 7 A magnified view of the structure at D; Figure 12 for Figure 8 A magnified view of the structure at E; Figure 13 for Figure 10 Enlarged view of the structure at F.

[0017] The numbers in the figure represent: 1. Housing 2. Pulse generator 3. Anti-overflow dust discharge assembly 31. First straight pipe 32. First motor 33. Second straight pipe 34. Cylinder 35. First rotating shaft 36. Connecting plate 4. Rotating air inlet pipe 41. Air inlet pipe 42. Rotating pipe 43. Air outlet 44. Support plate 45. Fan blade 46. Second rotating shaft 47. Connecting block 5. Air outlet pipe 6. Cloth bag 7. Cloth bag mounting plate 8. Backflush assembly 81. First spring 82. Horizontal pipe 83. Straight cylinder 84. Second spring 85. Connecting horizontal plate 86. Guide rail assembly 87. Threaded rod 88. First V-shaped block 89. Second motor 810. First sliding rod 811. Third straight pipe 812. Second sliding rod 813. Valve core 814. Vent 815. Sphere 816. Z-shaped plate 817. Second V-shaped plate 818. Third V-shaped plate 819. Articulated seat 820. N-shaped plate 821. Fixed block 822. Sector plate 823. Push rod 9. Compressor 10. Ice machine 11. Gas-liquid separator 12. Purification unit 13. Filter DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] For examples, see Figures 1-13 , a purification production line for recovering nitrogen from exhaust gas using a ceramic carrier for automobile exhaust, comprising a filter 13; The input end and output end of the filter 13 are fixedly connected to the exhaust gas source and the compressor 9 respectively; The output end of the compressor 9 is fixedly connected to an ice machine 10 , the output end of the ice machine 10 is fixedly connected to a gas-liquid separator 11 , and the gas outlet end of the gas-liquid separator 11 is fixedly connected to a purification unit 12 .

[0021] The exhaust gas is sucked into the compressor 9 through the filter 13 and pressurized to the set pressure. After being pressurized by the compressor 9, the exhaust gas is discharged and sent to the ice machine 10. The ice machine 10 cools the exhaust gas to the box 1-pulse generator 2°C, so that the ethanol and other organic solvents in the exhaust gas are condensed and liquefied. Then the gas enters the gas-liquid separator 11, where gas-liquid separation is carried out. The condensed ethanol and other organic solvents are gathered in the gas-liquid separator 11. When the gas-liquid separator 11 reaches a certain amount, it is discharged for unified waste treatment; the gas-liquid separator 11 The separated waste gas is sent to the purification unit 12. The molecular sieve in the purification unit 12 adsorbs and dries the residual organic solvents such as ethanol and moisture. After adsorption, nitrogen (purity ≥99.9% N2) can be obtained and introduced into the pipeline network at the pressure required by the user, thereby completing the recovery and reuse of the user's waste gas. This simplifies the waste gas treatment process for the user, reduces waste gas emissions, and allows the waste gas to be recycled after purification, greatly reducing the user's equipment investment cost, saving nitrogen consumption, reducing equipment floor space, and greatly reducing the user's production cost.

[0022] The filter 13 includes a box 1, a pulse generator 2, an air outlet pipe 5, a cloth bag 6 and a cloth bag mounting plate 7. The cloth bag mounting plate 7 is fixedly mounted on the inner wall of the box 1. A plurality of groups of cloth bags 6 are fixedly mounted in a rectangular array on the bottom of the cloth bag mounting plate 7. The air outlet pipe 5 is fixedly mounted on the side wall of the box 1 and is arranged higher than the cloth bag mounting plate 7. The side wall of the box body 1 is fixedly connected with a rotating air inlet pipe 4 for uniform air distribution, and the rotating air inlet pipe 4 is arranged below the cloth bag 6; The air outlet pipe 5 is fixedly connected to the input end of the compressor 9, and the outer end of the rotary air inlet pipe 4 is fixedly connected to the exhaust gas source; The pulse generator 2 is fixedly mounted on the side wall of the box 1. The output end of the pulse generator 2 is fixedly connected to a back-blowing component 8 for clearing blockage of a single row of cloth bags 6, and the air outlet end of the back-blowing component 8 is located at the top of the cloth bags 6. The rotary air intake pipe 4 includes an air intake pipe 41, a rotating pipe 42, an air outlet 43, a support plate 44, fan blades 45, a second rotating shaft 46 and a connecting block 47. The air intake pipe 41 is fixedly mounted on the side wall of the housing 1, the support plate 44 is fixedly mounted on the inner wall of the air intake pipe 41, the second rotating shaft 46 is rotatably connected to the support plate 44 through a bearing, a plurality of fan blades 45 are fixedly mounted on the outer end of the second rotating shaft 46 at equal intervals along the circumferential direction, the inner end of the second rotating shaft 46 is fixedly connected to the connecting block 47, and the outer end of the connecting block 47 is fixedly connected to the rotating pipe 42, the rotating pipe 42 is coaxially arranged with the air intake pipe 41 and has the same inner diameter, and the rotating pipe 42 is provided with an air outlet 43 along the circumferential direction; The rotating tube 42 is rotatably connected to the inner wall of the box body 1 through a bearing; The exhaust gas source enters the air inlet pipe 41 of the rotating air inlet pipe 4, and the flowing exhaust gas drives the fan blades 45 to rotate, and the fan blades 45 drive the second rotating shaft 46 to rotate, and the second rotating shaft 46 rotates along the support plate 44, and the second rotating shaft 46 drives the connecting block 47 to rotate, and the connecting block 47 drives the rotating tube 42 to rotate, and the rotating tube 42 drives the air outlet 43 to rotate and distribute the air, which is beneficial for the gas ejected from the air outlet 43 to contact with all the cloth bags 6, and avoid the dust gas always acting on the row of cloth bags 6 close to the air inlet pipe 41 at the first time, so that all the cloth bags 6 can contact the gas at the first time, so that all the cloth bags 6 have a higher filtration participation rate, and realize uniform filtration of the dust gas, effectively solving the problem that the cloth bags 6 close to the air outlet 43 are more easily damaged due to the concentrated erosion of the dust airflow, thereby improving the service life of the cloth bags 6.

[0023] The backflush assembly 8 includes multiple groups of follow-up air intake assemblies, a group of synchronous adjustment assemblies, multiple groups of follow-up blocking assemblies and multiple groups of third straight pipes 811. The third straight pipes 811 are arranged in a one-to-one correspondence with the cloth bag 6, and the air outlet end of the third straight pipe 811 is located at the upper end of the cloth bag 6. The multiple groups of third straight pipes 811 are equally divided into multiple rows. The top of a single row of third straight pipes 811 is connected to a group of follow-up air intake assemblies and a group of follow-up blocking assemblies. The synchronous adjustment assembly is movably connected to the follow-up air intake assembly and the follow-up blocking assembly. One group of synchronous adjustment assemblies is fixedly mounted on the cloth bag mounting plate 7. The multiple groups of follow-up air intake assemblies are all fixedly connected to the output end of the pulse generator 2. The follow-up air intake assembly includes a first spring 81, a cross tube 82, a straight cylinder 83, a first sliding rod 810, a second sliding rod 812, a valve core 813 and a ball 815. The through holes on both sides of the middle end of the straight cylinder 83 are fixedly connected to the cross tube 82. One group of cross tubes 82 is fixedly connected to the output end of the pulse generator 2. The third straight tube 811 is fixedly installed at the bottom of another group of cross tubes 82 at equal intervals. The inner wall of the valve core 813 is slidably connected to the inner wall of the straight cylinder 83. A vent 814 is provided at the lower end of the valve core 813. The upper and lower ends of the valve core 813 are fixedly connected to the second sliding rod 812 and the first sliding rod 810. The top of the second sliding rod 812 is fixedly connected to the top of the first spring 81, and the bottom of the first spring 81 is fixedly connected to the top of the straight cylinder 83. The bottom of the first sliding rod 810 is rotatably connected to the ball 815. The ball 815 is movably connected to the synchronous adjustment assembly. When the first spring 81 is in the original state, the vent 814 is staggered with the cross tube 82. The follow-up blocking assembly includes a second spring 84, a connecting transverse plate 85, a second V-shaped plate 817, a hinged seat 819, an n-shaped plate 820, a fixed block 821, a fan-shaped plate 822 and a push rod 823. The second spring 84 is sleeved on the outside of the third straight tube 811. The upper and lower ends of the second spring 84 are fixedly connected to another set of transverse tubes 82 and the connecting transverse plate 85 respectively. The second V-shaped plate 817 is fixedly installed on the end of the connecting transverse plate 85 close to the straight tube 83, and the second V-shaped plate 817 is movably connected to the synchronous adjustment assembly. The bag mounting plate 7 is at the top of the bag 6 along the circumferential direction. The interval is fixedly connected with a hinge seat 819, the inner end of the hinge seat 819 is fixedly connected to the fan-shaped plate 822, the outer wall of the fan-shaped plate 822 is fixedly connected to the n-shaped plate 820, the inner wall of the n-shaped plate 820 is fitted and slidably connected to the outer wall of the push rod 823, the outer end of the push rod 823 is fixedly connected to the fixed block 821, and the fixed block 821 is fixedly connected to the connecting horizontal plate 85. When the second spring 84 is in the original state, the fan plate 822 is in the open state. When the fan plate 822 is at the lower end, all the fan plates 822 are in contact with the third straight tube 811 and block the top of the cloth bag 6; The connecting horizontal plate 85 is slidably connected to the third straight tube 811 through the sliding hole.

[0024] The synchronous adjustment assembly includes a guide rail assembly 86, a threaded rod 87, a first V-shaped block 88, a second motor 89, a Z-shaped plate 816 and a third V-shaped plate 818. The second motor 89 and the guide rail of the guide rail assembly 86 are fixedly connected to the top of the cloth bag mounting plate 7, the output end of the second motor 89 is fixedly connected to the threaded rod 87, the Z-shaped plate 816 is threadedly connected to the threaded rod 87 through a threaded sleeve, and the bottom of the Z-shaped plate 816 is fixedly connected to the slider of the guide rail assembly 86, one end of the Z-shaped plate 816 is fixedly connected to the first V-shaped block 88 used in conjunction with the sphere 815, and the other end of the Z-shaped plate 816 is fixedly connected to the third V-shaped plate 818 used in conjunction with the second V-shaped plate 817, the tip of the first V-shaped block 88 faces upward, and the tip of the third V-shaped plate 818 faces downward.

[0025] The second motor 89 of the synchronous adjustment assembly of the back-blowing assembly 8 drives the threaded rod 87 to rotate. Under the guidance of the guide rail assembly 86, the threaded rod 87 drives the Z-shaped plate 816 to move. The Z-shaped plate 816 drives the first V-shaped block 88 and the third V-shaped plate 818 to move. The first V-shaped block 88 is separated from the ball 815, and the third V-shaped plate 818 is separated from the second V-shaped plate 817. The first spring 81 that separates the first V-shaped block 88 from the ball 815 drives the second sliding rod 812 to move downward, and the second sliding rod 812 drives the valve core 813 to move downward. The solid part of the valve core 813 blocks the cross pipe 82. The second spring 84 that separates the third V-shaped plate 818 from the second V-shaped plate 817 drives the fixed block 821 to move upward. The fixed block 821 drives the push rod 823 to move upward. The push rod 823 drives the fan plate 822 to rotate upward along the hinge seat 819 through the n-shaped plate 820. The fan plate 822 is in the open state, and the cloth bag 6 performs normal filtration. When a row of bags 6 needs to be backflushed, the second motor 89 of the synchronous adjustment assembly of the backflush assembly 8 drives the threaded rod 87 to rotate. Under the guidance of the guide rail assembly 86, the threaded rod 87 drives the Z-shaped plate 816 to move. The Z-shaped plate 816 drives the first V-shaped block 88 and the third V-shaped plate 818 to move. The first V-shaped block 88 contacts the ball 815, and the third V-shaped plate 818 contacts the second V-shaped plate 817. The first V-shaped block 88 pushes the ball 815 to move upward, and the ball 815 drives The first sliding rod 810 moves upward, the first sliding rod 810 drives the valve core 813 to move upward, the valve core 813 drives the vent hole 814 to move until it overlaps with the cross tube 82, the first spring 81 is in a compressed state, the third V-shaped plate 818 drives the second V-shaped plate 817 to move downward, the second V-shaped plate 817 drives the connecting cross plate 85 to move downward, the connecting cross plate 85 drives the fixing block 821 to move downward, the fixing block 821 drives the push rod 823 to move downward, and the push rod 823 The fan-shaped plate 822 is driven by the n-shaped plate 820 to rotate downward along the hinge seat 819. When the fan-shaped plate 822 is at the lowest end, all the fan-shaped plates 822 are in contact with the third straight tube 811 and block the top of the bag 6 that needs to be recoiled. The pulse gas generated by the pulse generator 2 enters the vent 814 through a group of transverse tubes 82 and enters another group of transverse tubes 82, and then is ejected from the third straight tube 811 at the bottom of the other group of transverse tubes 82 to recoil the bag 6 that needs to be recoiled. The cloth bags 6 of other groups perform normal filtration without the need for shutdown, which is conducive to continuous production. When the fan plate 822 is at the lower end, all fan plates 822 are in contact with the third straight tube 811 and block the top of the cloth bag 6 that needs to be backflushed. The cloth bag 6 that needs to be backflushed will not be filtered during backflushing, avoiding the high-pressure air blown out by the third straight tube 811 from leaking from the top of the cloth bag 6, which is conducive to the high-pressure gas to clean the cloth bag 6, ensuring the backflushing cleaning effect, and achieving energy-saving effects.

[0026] The bottom of the box body 1 is fixedly connected with an anti-overflow ash discharge component 3 for ash discharge; The anti-overflow ash discharge assembly 3 includes a first straight tube 31, a first motor 32, a second straight tube 33, a cylinder 34, a first rotating shaft 35 and a connecting plate 36. The first straight tube 31 is fixedly installed at the bottom of the box body 1, the cylinder 34 is fixedly installed at the bottom of the first straight tube 31, the second straight tube 33 is fixedly installed at the bottom of the cylinder 34, the first motor 32 is fixedly installed on the side wall of the cylinder 34, the driving end of the first motor 32 is fixedly connected to the first rotating shaft 35, and the first rotating shaft 35 is coaxially arranged with the cylinder 34, the connecting plates 36 are fixedly installed on the outer wall of the first rotating shaft 35 at equal intervals along the circumferential direction, the outer ends of the connecting plates 36 are slidably connected to the inner wall of the cylinder 34, and at least four groups of connecting plates 36 are provided; During ash discharge, the cleaned ash falls into the first straight pipe 31, and the first motor 32 drives the first rotating shaft 35 to rotate intermittently, and the first rotating shaft 35 drives the connecting plate 36 to rotate intermittently. There is a storage bin between adjacent connecting plates 36, and the connecting plate 36 rotates the ash in the first straight pipe 31 into the second straight pipe 33, and then discharges it from the second straight pipe 33. The connecting plate 36 located at the upper end of the first rotating shaft 35 blocks the bottom of the first straight pipe 31 to prevent air leakage during ash discharge.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A purification production line for recovering nitrogen from ceramic carrier exhaust gas of automobile exhaust, comprising a filter (13), characterized in that: The input end and the output end of the filter (13) are fixedly connected to the exhaust gas source and the compressor (9) respectively; The output end of the compressor (9) is fixedly connected to an ice machine (10), the output end of the ice machine (10) is fixedly connected to a gas-liquid separator (11), and the gas outlet end of the gas-liquid separator (11) is fixedly connected to a purification unit (12).

2. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 1, characterized in that: The filter (13) comprises a box (1), a pulse generator (2), an air outlet pipe (5), a cloth bag (6) and a cloth bag mounting plate (7), wherein the cloth bag mounting plate (7) is fixedly mounted on the inner wall of the box (1), a plurality of cloth bags (6) are fixedly mounted in a rectangular array on the bottom of the cloth bag mounting plate (7), the air outlet pipe (5) is fixedly mounted on the side wall of the box (1), and the air outlet pipe (5) is arranged higher than the cloth bag mounting plate (7); A rotating air inlet pipe (4) for evenly distributing air is fixedly connected to the side wall of the box body (1), and the rotating air inlet pipe (4) is arranged below the cloth bag (6); The air outlet pipe (5) is fixedly connected to the input end of the compressor (9), and the outer end of the rotary air inlet pipe (4) is fixedly connected to the exhaust gas source; The pulse generator (2) is fixedly mounted on the side wall of the box (1), and the output end of the pulse generator (2) is fixedly connected to a backflush assembly (8) for clearing blockage of a single-row cloth bag (6), and the air outlet end of the backflush assembly (8) is located at the top of the cloth bag (6).

3. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 2, characterized in that: The rotary air inlet pipe (4) comprises an air inlet pipe (41), a rotating pipe (42), an air outlet (43), a support plate (44), a fan blade (45), a second rotating shaft (46) and a connecting block (47). The air inlet pipe (41) is fixedly mounted on the side wall of the box body (1), the support plate (44) is fixedly mounted on the inner wall of the air inlet pipe (41), the second rotating shaft (46) is rotatably connected to the support plate (44) through a bearing, a plurality of fan blades (45) are fixedly mounted on the outer end of the second rotating shaft (46) at equal intervals along the circumferential direction, the inner end of the second rotating shaft (46) is fixedly connected to the connecting block (47), and the outer end of the connecting block (47) is fixedly connected to the rotating pipe (42), the rotating pipe (42) and the air inlet pipe (41) are coaxially arranged and have the same inner diameter, and the rotating pipe (42) is provided with an air outlet (43) along the circumferential direction.

4. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 3, characterized in that: The rotating tube (42) is rotatably connected to the inner wall of the box body (1) through a bearing.

5. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 2, characterized in that: The backflush assembly (8) includes a plurality of follow-up air intake assemblies, a group of synchronous adjustment assemblies, a plurality of follow-up blocking assemblies and a plurality of third straight pipes (811). The third straight pipes (811) are arranged in a one-to-one correspondence with the cloth bag (6), and the air outlet end of the third straight pipe (811) is located at the upper end inside the cloth bag (6). The plurality of third straight pipes (811) are equally divided into a plurality of rows. The top of a single row of third straight pipes (811) is connected to a group of follow-up air intake assemblies and a group of follow-up blocking assemblies. The synchronous adjustment assembly is movably connected to the follow-up air intake assembly and the follow-up blocking assembly. A group of synchronous adjustment assemblies is fixedly mounted on the cloth bag mounting plate (7). The plurality of follow-up air intake assemblies are all fixedly connected to the output end of the pulse generator (2).

6. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 5, characterized in that: The follow-up air intake assembly includes a first spring (81), a transverse tube (82), a straight tube (83), a first sliding rod (810), a second sliding rod (812), a valve core (813) and a sphere (815). Through holes opened on both sides of the middle end of the straight tube (83) are fixedly connected to the transverse tube (82). One group of transverse tubes (82) is fixedly connected to the output end of the pulse generator (2). The third straight tube (811) is fixedly installed at the bottom of the other group of transverse tubes (82) at equal intervals. The inner wall of the valve core (813) is fitted and slidably connected to the inner wall of the straight tube (83). The valve core (813) ) is provided with a vent hole (814) at the lower end, the upper and lower ends of the valve core (813) are fixedly connected to the second sliding rod (812) and the first sliding rod (810), the top of the second sliding rod (812) is fixedly connected to the top of the first spring (81), and the bottom of the first spring (81) is fixedly connected to the top of the straight cylinder (83), the bottom of the first sliding rod (810) is rotatably connected to the ball (815), and the ball (815) is movably connected to the synchronous adjustment component. When the first spring (81) is in the original state, the vent hole (814) and the cross tube (82) are offset.

7. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 6, characterized in that: The follow-up blocking assembly includes a second spring (84), a connecting transverse plate (85), a second V-shaped plate (817), a hinge seat (819), an n-shaped plate (820), a fixed block (821), a fan-shaped plate (822) and a push rod (823). The second spring (84) is sleeved on the outside of the third straight tube (811). The upper and lower ends of the second spring (84) are fixedly connected to another set of transverse tubes (82) and the connecting transverse plate (85), respectively. The second V-shaped plate (817) is fixedly installed on the end of the connecting transverse plate (85) close to the straight tube (83), and the second V-shaped plate (817) is movably connected to the synchronous adjustment assembly. The bag mounting plate (7) is at the top of the bag (6) along the circumference. A hinge seat (819) is fixedly connected at equal intervals, the inner end of the hinge seat (819) is fixedly connected to the fan-shaped plate (822), the outer wall of the fan-shaped plate (822) is fixedly connected to the n-shaped plate (820), the inner wall of the n-shaped plate (820) is fitted and slidably connected to the outer wall of the push rod (823), the outer end of the push rod (823) is fixedly connected to the fixed block (821), and the fixed block (821) is fixedly connected to the connecting horizontal plate (85), when the second spring (84) is in the original state, the fan-shaped plate (822) is in an open state, and when the fan-shaped plate (822) is at the lower end, all the fan-shaped plates (822) are fitted and contacted with the third straight tube (811) and block the top of the cloth bag (6).

8. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 7, characterized in that: The connecting horizontal plate (85) is slidably connected to the third straight tube (811) through the sliding hole.

9. The purification production line for recovering nitrogen from ceramic carrier waste gas used in automobile exhaust according to claim 8, characterized in that: The synchronous adjustment assembly includes a guide rail assembly (86), a threaded rod (87), a first V-shaped block (88), a second motor (89), a Z-shaped plate (816) and a third V-shaped plate (818). The second motor (89) and the guide rail of the guide rail assembly (86) are fixedly connected to the top of the bag mounting plate (7). The output end of the second motor (89) is fixedly connected to the threaded rod (87). The Z-shaped plate (816) is threadedly connected to the threaded rod (87) through a threaded sleeve, and the bottom of the Z-shaped plate (816) is fixedly connected to the slider of the guide rail assembly (86). One end of the Z-shaped plate (816) is fixedly connected to the first V-shaped block (88) used in conjunction with the sphere (815). The other end of the Z-shaped plate (816) is fixedly connected to the third V-shaped plate (818) used in conjunction with the second V-shaped plate (817). The tip of the first V-shaped block (88) faces upward, and the tip of the third V-shaped plate (818) faces downward.

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