Tail gas collecting device

Abstract

The utility model discloses a tail gas collecting device in the technical field of tail gas treatment, which comprises a gas-liquid separator, a spraying cylinder and an adsorption cylinder, the exhaust end of the gas-liquid separator is communicated with the gas inlet end of the spraying cylinder through a one-way gas guide pipe, and the exhaust end of the spraying cylinder is communicated with the gas inlet end of the adsorption cylinder through a one-way gas guide pipe. A hollow driving rod is rotationally arranged in the spraying barrel; the stirring rod is driven to rotate through the hollow driving rod, the stirring rod is promoted to drive the piston disc to move synchronously through the wave-shaped groove, when the piston disc moves downwards, alkali liquor at the bottom of the spraying barrel is pushed into the hollow driving rod and conveyed to the spraying ring, and then the alkali liquor is sprayed through the spraying ring to treat tail gas. Alkali liquor spraying and stirring are synchronously operated, so that the tail gas treatment effect is better; the stirring rod is driven to rotate through the hollow driving rod, the stirring rod is promoted to move up and down through the wave-shaped groove, the piston disc is driven to move synchronously along with the up-down movement of the stirring rod, and therefore the stirring effect of alkali liquor is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas treatment technical field especially is concerned with a tail gas collecting device. BACKGROUND

[0002] The fermentation tank is a whole set of fermentation process system, and the aerobic fermentation includes a disinfection and sterilization device, a feeding system, an air system, a temperature control system, a tail gas treatment device and the like. The aerobic fermentation needs to deliver a large amount of sterile air into the tank, the top of the fermentation tank is an air outlet, part of live bacteria and odor gas are entrained in the air outlet, and the tail gas discharged from the fermentation tank is treated and discharged into the atmosphere.

[0003] The existing patent (announcement number: CN211411592U) discloses a tail gas treatment device of a fermentation tank, which comprises a fermentation tank, a tail gas outlet pipeline is led out at the top of the fermentation tank, and the tail gas outlet pipeline comprises, in sequence: a tail gas collecting tank containing lye and connected with the tail gas outlet pipeline; and a spray tower connected with the discharge position of the gas-liquid separator. However, the technical scheme still has defects, specifically as follows:

[0004] The device treats the tail gas by contacting the tail gas with the lye during use, however, the contacting time of the tail gas with the lye is short, so the reaction effect of the tail gas with the lye is poor. Therefore, we propose a tail gas collecting device to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0005] The purpose of this part is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims to provide a tail gas collecting device, which can solve the problem that the existing device treats the tail gas by contacting the tail gas with the lye during use, however, the contacting time of the tail gas with the lye is short, so the reaction effect of the tail gas with the lye is poor.

[0007] To solve the above technical problems, the utility model provides a tail gas collecting device adopts the following technical scheme: including gas liquid separator, spray cylinder and adsorption cylinder, the exhaust end of gas liquid separator and the air inlet end of spray cylinder are communicated through one way gas guide pipe, the exhaust end of spray cylinder and the air inlet end of adsorption cylinder are communicated through one way gas guide pipe, the hollow drive rod is rotationally arranged in the spray cylinder, the outer wall of hollow drive rod movably sheathes a plurality of stirring rods, the inner wall of spray cylinder is provided with wave groove, the end of stirring rod is inserted into wave groove and is slidably matched with the inner wall of wave groove, the lower end of stirring rod is provided with piston disc, piston disc movably sheathes on the hollow drive rod, the upper end of hollow drive rod is fixedly provided with spray ring, the inner wall of spray ring and hollow drive rod is communicated.

[0008] Through the above technical scheme, the utility model first carries out gas liquid separation to the tail gas produced by biological fermentation through the gas liquid separator, and discharges the separated liquid, and simultaneously, the separated tail gas is transported into the spray cylinder for treatment, the stirring rod is rotated by the hollow drive rod, and the stirring rod is moved up and down by the wave groove, the piston disc is synchronously moved by the stirring rod moving up and down, and when the piston disc moves down, the lye at the bottom of the spray cylinder is pushed into the hollow drive rod and transported to the spray ring, and then the lye is sprayed by the spray ring to treat the tail gas.

[0009] Optionally, the hollow drive rod comprises a motor and a hollow column, the motor is fixedly arranged at the top of the spray cylinder, and the hollow column is rotationally arranged in the spray cylinder, and the rotating shaft of the motor is fixedly connected with the upper end of the hollow column.

[0010] Through the above technical scheme, the motor is used to rotate the hollow column, and the stirring rod is rotated to stir the lye.

[0011] Optionally, the outer surface of the lower end of the hollow column is provided with a liquid inlet hole, and the outer wall of the hollow column is provided with a limiting groove.

[0012] Through the above technical scheme, the liquid inlet hole is used to transport the lye into the hollow column.

[0013] Optionally, the stirring rod comprises a movable ring and a plurality of round rods, the movable ring movably sheathes on the hollow column, one end of the plurality of round rods is fixedly connected with the outer wall of the movable ring, the other end of the plurality of round rods is slidably matched with the inner wall of the wave groove, and a vertical rod is fixedly inserted on the round rod.

[0014] Through the above technical scheme, when the hollow column rotates, the movable ring and the round rod are synchronously rotated, and the round rod slides along the inner wall of the wave groove, so that the round rod drives the movable ring to move along the axial direction of the hollow column.

[0015] Optionally, the inner side of the movable ring is fixedly provided with a limiting block, and the limiting block is located in a limiting groove and is in sliding fit with the inner wall of the limiting groove.

[0016] By adopting the technical scheme, the hollow column can drive the movable ring and the round rod to rotate synchronously when the hollow column rotates.

[0017] Optionally, a plurality of one-way liquid inlet valves are fixedly inserted on the piston disc, a rotating ring is rotatably arranged on the top surface of the piston disc, and the lower end of the vertical rod is fixedly connected with the top surface of the rotating ring.

[0018] By adopting the technical scheme, the rotating ring and the piston disc can move synchronously when the movable ring drives the round rod and the vertical rod to move up and down.

[0019] Optionally, a one-way valve is arranged in the hollow column, a sealing sleeve is arranged at the connecting position of the piston disc and the hollow column, and the hollow column is movably inserted in the sealing sleeve.

[0020] By adopting the technical scheme, the alkali solution can be pushed into the hollow column when the piston disc moves downward, the possibility of backflow of the alkali solution can be reduced through the one-way valve, and the sealing property of the connection between the hollow column and the piston disc can be improved through the sealing sleeve.

[0021] Optionally, the spraying ring comprises a hollow ring and a plurality of liquid guide pipes, one end of each of the plurality of liquid guide pipes is fixedly inserted with the outer wall of the hollow column, the other end of each of the plurality of liquid guide pipes is fixedly inserted with the inner side of the hollow ring, the hollow ring and the hollow column are communicated through the liquid guide pipes, and a plurality of atomizing nozzles are fixedly inserted with the bottom surface of the hollow ring.

[0022] By adopting the technical scheme, the alkali solution can be delivered into the hollow ring through the liquid guide pipes, and then the alkali solution can be sprayed through the atomizing nozzles to treat the tail gas.

[0023] In summary, the utility model has at least one of the following beneficial effects:

[0024] The hollow driving rod drives the stirring rod to rotate, the wave-shaped groove promotes the stirring rod to move up and down, and the stirring rod drives the piston disc to move synchronously, so that the alkali solution at the bottom of the spraying cylinder is pushed into the hollow driving rod and delivered to the spraying ring when the piston disc moves downward, and then the alkali solution is sprayed through the spraying ring to treat the tail gas, and the alkali solution spraying and stirring are synchronously operated, so that the treatment effect of the tail gas is better.

[0025] The hollow driving rod drives the stirring rod to rotate, and the wave-shaped groove promotes the stirring rod to move up and down, so that the stirring rod drives the piston disc to move synchronously, and thus the stirring effect of the alkali solution is better. BRIEF DESCRIPTION OF DRAWINGS

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0028] Fig. 2 This is a partial three-dimensional cross-sectional view of the spray cylinder of this utility model;

[0029] Fig. 3 This is a partial three-dimensional cross-sectional view of the hollow column of this utility model.

[0030] Explanation of reference numerals in the attached diagram: 1. Gas-liquid separator; 2. Spray cylinder; 3. Adsorption cylinder; 4. Hollow drive.

[0031] 41. Rod; 42. Motor; 43. Hollow column; 44. Liquid inlet; 45. Limiting groove; 46. Check valve; 77. Stirring

[0032] 51. Stirring rod; 52. Movable ring; 53. Round rod; 54. Vertical rod; 55. Limiting block; 6. Wavy groove; 7.

[0033] Piston disc; 71. One-way inlet valve; 72. Rotary ring; 73. Sealing sleeve; 8. Spray ring; 81. Hollow ring;

[0034] 82. Liquid guide tube; 83. Atomizing nozzle. Detailed Implementation

[0035] The following is in conjunction with the appendix Figs. 1-3 The present invention will be described in further detail below.

[0036] Example 1, refer to Figs. 1-3 In this embodiment, to address the problem that existing devices treat exhaust gas by contacting it with an alkaline solution, but the contact time between the exhaust gas and the alkaline solution is short, resulting in poor reaction efficiency, this invention discloses an exhaust gas collection device.

[0037] The device comprises a gas-liquid separator 1, a spraying cylinder 2 and an adsorption cylinder 3, the exhaust end of the gas-liquid separator 1 is communicated with the air inlet end of the spraying cylinder 2 through a one-way air guide pipe, the air outlet end of the spraying cylinder 2 is communicated with the air inlet end of the adsorption cylinder 3 through a one-way air guide pipe, the tail gas generated by biological fermentation is first subjected to gas-liquid separation through the gas-liquid separator 1, the accumulated liquid separated out is discharged through the gas-liquid separator 1, and the separated tail gas is transported into the spraying cylinder 2 for treatment, then the treated tail gas is transported into the adsorption cylinder 3 for secondary treatment, and finally the treated tail gas is discharged.

[0038] It should be noted that the one-way air guide pipe is an existing device, and the one-way air guide pipe is arranged to reduce the possibility of backflow of the tail gas and the liquid.

[0039] A hollow driving rod 4 is rotatably arranged in the spraying cylinder 2, a plurality of stirring rods 5 are movably sleeved on the outer wall of the hollow driving rod 4, the hollow driving rod 4 comprises a motor 41 and a hollow column 42, the motor 41 is fixedly arranged at the top of the spraying cylinder 2, the hollow column 42 is rotatably arranged in the spraying cylinder 2, the rotating shaft of the motor 41 is fixedly connected with the upper end of the hollow column 42, the hollow column 42 is rotated by the motor 41, and the stirring rods 5 are rotated by the hollow column 42 to stir the lye, so as to increase the contact effect of the tail gas and the lye.

[0040] A liquid inlet hole 43 is formed in the outer surface of the lower end of the hollow column 42, and a limiting groove 44 is formed in the outer wall of the hollow column 42, so that the lye can be transported into the hollow column 42 through the liquid inlet hole 43.

[0041] A wave-shaped groove 6 is formed in the inner wall of the spraying cylinder 2, the end of the stirring rod 5 is inserted into the wave-shaped groove 6 and is in sliding fit with the inner wall of the wave-shaped groove 6, a piston disc 7 is arranged at the lower end of the stirring rod 5, the stirring rod 5 is rotated by the hollow driving rod 4, the stirring rod 5 is moved up and down by the wave-shaped groove 6, and the piston disc 7 is synchronously moved by the stirring rod 5.

[0042] The piston disc 7 is movably sleeved on the hollow driving rod 4, a spraying ring 8 is fixedly arranged at the upper end of the hollow driving rod 4, the spraying ring 8 is communicated with the inner wall of the hollow driving rod 4, the spraying ring 8 comprises a hollow ring 81 and a plurality of liquid guide pipes 82, one end of the plurality of liquid guide pipes 82 is fixedly inserted into the outer wall of the hollow column 42, the other end of the plurality of liquid guide pipes 82 is fixedly inserted into the inner side of the hollow ring 81, the hollow ring 81 is communicated with the hollow column 42 through the liquid guide pipes 82, a plurality of atomizing nozzles 83 are fixedly inserted into the bottom surface of the hollow ring 81, the lye is transported into the hollow ring 81 through the liquid guide pipes 82 by the hollow column 42, and then the lye is sprayed by the atomizing nozzles 83 to treat the tail gas.

[0043] Specific working principle is: first through the gas-liquid separator 1 to the tail gas produced by biological fermentation gas-liquid separation, and through the gas-liquid separator 1 to the separated effusion discharge, at the same time, the separated tail gas is transported to the spray cylinder 2 for processing, then the treated tail gas is transported to the adsorption cylinder 3 for secondary processing, finally the treated tail gas is discharged.

[0044] The hollow drive rod 4 drives the stirring rod 5 to rotate, and the wave-shaped groove 6 promotes the stirring rod 5 to move up and down, and the piston disc 7 moves synchronously with the stirring rod 5 moving up and down. When the piston disc 7 moves down, the alkali liquid at the bottom of the spray cylinder 2 is pushed into the hollow drive rod 4 and transported to the spray ring 8. Then the alkali liquid is sprayed through the spray ring 8 to treat the tail gas. Therefore, the contact effect of the tail gas and the alkali liquid is better.

[0045] Embodiment two, refer to Figs. 2-3 , based on the same concept as the above embodiment one, the tail gas collecting device further comprises:

[0046] The stirring rod 5 comprises a movable ring 51 and a plurality of round rods 52. The movable ring 51 is movably sleeved on the hollow column 42. One end of the plurality of round rods 52 is fixedly connected to the outer wall of the movable ring 51, and the other end of the plurality of round rods 52 is slidably connected to the inner wall of the wave-shaped groove 6. A vertical rod 53 is fixedly inserted on the round rod 52. When the hollow column 42 rotates, the movable ring 51 and the round rod 52 rotate synchronously. At this time, the round rod 52 slides along the inner wall of the wave-shaped groove 6, so as to drive the movable ring 51 to move along the axial direction of the hollow column 42.

[0047] The inner side of the movable ring 51 is fixedly provided with a limiting block 54. The limiting block 54 is located in the limiting groove 44 and slidably connected to the inner wall of the limiting groove 44. The limiting block 54 and the limiting groove 44 cooperate to enable the hollow column 42 to rotate and drive the movable ring 51 and the round rod 52 to rotate synchronously, and to enable the movable ring 51 to drive the limiting block 54 to slide up and down along the inner wall of the limiting groove 44.

[0048] Specific working principle is: when the hollow column 42 rotates, the limiting block 54 and the limiting groove 44 cooperate to enable the hollow column 42 to rotate and drive the movable ring 51 and the round rod 52 to rotate synchronously. At this time, the round rod 52 slides along the inner wall of the wave-shaped groove 6, so as to drive the movable ring 51 to move along the axial direction of the hollow column 42, and to enable the movable ring 51 to drive the limiting block 54 to slide up and down along the inner wall of the limiting groove 44.

[0049] Embodiment three, refer to Figs. 2-3 , based on the same concept as the above embodiment one, the tail gas collecting device further comprises:

[0050] The piston disc 7 is fixedly inserted with a plurality of one-way liquid inlet valves 71, and the top surface of the piston disc 7 is rotationally provided with a rotating ring 72, and the lower end of the vertical rod 53 is fixedly connected with the top surface of the rotating ring 72, when the movable ring 51 drives the round rod 52 and the vertical rod 53 to move up and down, the rotating ring 72 is driven to move synchronously with the piston disc 7, when the piston disc 7 moves downwards, the lye is pushed into the hollow column 42, and then the hollow column 42 supplies the lye to the spraying ring 8, when the piston disc 7 moves upwards, the lye in the spraying cylinder 2 is sucked into the bottom of the piston disc 7 through the one-way liquid inlet valves 71.

[0051] The hollow column 42 is provided with a one-way valve 45, and the connecting part between the piston disc 7 and the hollow column 42 is provided with a sealing sleeve 73, and the hollow column 42 is movably inserted in the sealing sleeve 73, when the piston disc 7 moves downwards, the lye is pushed into the hollow column 42, and the possibility of backflow of the lye is reduced through the one-way valve 45, and the sealing sleeve 73 facilitates to increase the sealing performance of the connection between the hollow column 42 and the piston disc 7.

[0052] The specific working principle is: when the piston disc 7 moves downwards, the lye is pushed into the hollow column 42, and then the hollow column 42 supplies the lye to the spraying ring 8, and when the piston disc 7 moves downwards, the lye is pushed into the hollow column 42, and the possibility of backflow of the lye is reduced through the one-way valve 45, when the piston disc 7 moves upwards, the lye in the spraying cylinder 2 is sucked into the bottom of the piston disc 7 through the one-way liquid inlet valves 71.

[0053] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tail gas collecting device, comprising a gas-liquid separator (1), a spraying cylinder (2) and an adsorption cylinder (3), characterized in that: The exhaust end of the gas-liquid separator (1) is communicated with the air inlet end of the spraying cylinder (2) through a one-way air guide pipe, the air outlet end of the spraying cylinder (2) is communicated with the air inlet end of the adsorption cylinder (3) through a one-way air guide pipe, a hollow driving rod (4) is rotationally arranged in the spraying cylinder (2), a plurality of stirring rods (5) are movably sleeved on the outer wall of the hollow driving rod (4), a wave-shaped groove (6) is formed in the inner wall of the spraying cylinder (2), the end of the stirring rod (5) is inserted into the wave-shaped groove (6) and is in sliding fit with the inner wall of the wave-shaped groove (6), a piston disc (7) is arranged at the lower end of the stirring rod (5), the piston disc (7) is movably sleeved on the hollow driving rod (4), a spraying ring (8) is fixedly arranged at the upper end of the hollow driving rod (4), and the spraying ring (8) is communicated with the inner wall of the hollow driving rod (4).

2. The tail gas collection apparatus of claim 1, wherein: The hollow driving rod (4) comprises a motor (41) and a hollow column (42), the motor (41) is fixedly arranged at the top of the spraying cylinder (2), and the hollow column (42) is rotationally arranged in the spraying cylinder (2).

3. The tail gas collection apparatus of claim 2, wherein: A liquid inlet hole (43) is formed in the outer surface of the lower end of the hollow column (42), and a limiting groove (44) is formed in the outer wall of the hollow column (42).

4. The tail gas collection apparatus of claim 3, wherein: The stirring rod (5) comprises a movable ring (51) and a plurality of round rods (52), the movable ring (51) is movably sleeved on the hollow column (42), one end of each of the plurality of round rods (52) is fixedly connected with the outer wall of the movable ring (51), the other end of each of the plurality of round rods (52) is in sliding fit with the inner wall of the wave-shaped groove (6), and a vertical rod (53) is fixedly inserted on the round rod (52).

5. The tail gas collection apparatus of claim 4, wherein: A limiting block (54) is fixedly arranged on the inner side of the movable ring (51), and the limiting block (54) is located in the limiting groove (44) and is in sliding fit with the inner wall of the limiting groove (44).

6. The tail gas collection apparatus of claim 4, wherein: A plurality of one-way liquid inlet valves (71) are fixedly inserted on the piston disc (7), a rotating ring (72) is rotationally arranged on the top surface of the piston disc (7), and the lower end of the vertical rod (53) is fixedly connected with the top surface of the rotating ring (72).

7. The tail gas collection apparatus of claim 2, wherein: A one-way valve (45) is arranged in the hollow column (42), a sealing sleeve (73) is arranged at the connection position of the piston disc (7) and the hollow column (42), and the hollow column (42) is movably inserted in the sealing sleeve (73).

8. The tail gas collection apparatus of claim 2, wherein: The spraying ring (8) comprises a hollow ring (81) and a plurality of liquid guide pipes (82), one end of each of the plurality of liquid guide pipes (82) is fixedly inserted with the outer wall of the hollow column (42), the other end of each of the plurality of liquid guide pipes (82) is fixedly inserted with the inner side of the hollow ring (81), the hollow ring (81) is communicated with the hollow column (42) through the liquid guide pipe (82), and a plurality of atomizing nozzles (83) are fixedly inserted on the bottom surface of the hollow ring (81).

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