Treatment equipment for low-temperature methanol washing tail gas

Abstract

The utility model discloses low-temperature methanol washing tail gas treatment equipment which comprises a box body, the right side of the box body is connected with a gas inlet piece, the front side of the box body is connected with a liquid inlet pipe, the top of the box body is connected with a supporting frame and a fixing frame, the supporting frame is located on the left side of the fixing frame, and stirring pieces are arranged in an inner cavity and the top of the box body. A stirring part is arranged in an inner cavity of the fixing frame, a linkage part is arranged in an inner cavity of the fixing frame, the stirring part, the linkage part and an air inlet part are matched, an opening and closing part is arranged on the left side wall of the box body, a liquid outlet pipe is connected to the left side wall of the box body, a purification box is connected to the left end of the liquid outlet pipe, and a liquid falling plate is connected to the front side of the purification box. According to the methanol stirring device, methanol in the inner cavity of the box body can be stirred, so that the reaction is more sufficient and uniform, meanwhile, through the arrangement of the linkage part, the gas inlet part can be driven to convey tail gas to the inner cavity of the box body while stirring work is performed, and operation and stop of the gas inlet part can be controlled through the linkage part.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical tail gas treatment, in particular to a low-temperature methanol tail gas treatment device. Background Art

[0002] The low-temperature methanol washing device mainly uses low-temperature methanol to wash the acidic gas entrained in the tail gas, control the pollutant content in the tail gas, and discharge it into the atmosphere through the chimney after reaching the environmental protection index. Most of the low-temperature methanol equipment currently used adopts the method of fusion reaction of methanol and tail gas for treatment. First, low-temperature methanol is poured into the container, and then the tail gas is injected into the container. The methanol and tail gas are mixed by stirring, and then the tail gas is treated by reaction. However, the input of tail gas and the stirring of methanol for reaction are usually separated, which makes the input of tail gas and stirring work inconvenient to coordinate, and cannot work at the same time, so as to achieve the effect of controlling the ratio of the reaction amount of tail gas and methanol. To solve this problem, we propose a low-temperature methanol tail gas washing treatment equipment. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A processing device for low-temperature methanol tail gas washing comprises a box body, an air inlet part is arranged on the right side of the box body, a liquid inlet pipe is connected to the front side of the box body, a support frame and a fixed frame are connected to the top of the box body, the support frame is located on the left side of the fixed frame, a stirring part is arranged on the inner cavity and the top of the box body, a linkage part is arranged on the inner cavity of the fixed frame, the stirring part, the linkage part and the air inlet part cooperate with each other, an opening and closing part is arranged on the left side wall of the box body, a liquid outlet pipe is connected to the left side wall of the box body, a purification box is connected to the left end of the liquid outlet pipe, and a liquid drop plate is connected to the front side of the purification box.

[0006] Preferably, the air intake part includes an air intake pipe, which is connected to the right side of the box body, the front side of the air intake pipe is connected to an air connecting pipe, the air connecting pipe and the air intake pipe are communicated, the inner cavity of the air intake pipe is connected to a first rotating rod, the left end of the first rotating rod is connected to an air intake fan, and the right end of the first rotating rod passes through the right side of the air intake pipe and is connected to a fourth gear.

[0007] Preferably, the linkage member includes a second rotating rod, the second rotating rod is connected to the inner cavity of the fixed frame, the left and right ends of the second rotating rod pass through the left and right sides of the fixed frame and are respectively connected to the second bevel gear and the third gear, the third gear and the fourth gear are meshed, the outer wall of the second rotating rod is connected to a circular frame, the circular frame is located on the inner side of the fixed frame, the inner side of the circular frame is connected to a circular rotating ring, the front side of the circular rotating ring is connected to a movable paddle, the front side of the fixed frame is opened with a notch, and the movable paddle is located on the inner side of the notch.

[0008] Preferably, the stirring member includes a motor, which is connected to the inner top of the support frame, and the output end of the motor is connected to a rotating rod, the bottom end of the rotating rod passes through the top of the box and is connected to a stirring roller, the outer wall of the stirring roller is evenly connected with a mesh stirring sheet, and the outer wall of the rotating rod is connected to a first bevel gear, and the first bevel gear and the second bevel gear are meshed.

[0009] Preferably, the opening and closing part includes a moving block, a sliding groove is bored in the inner cavity of the left side wall of the box body, the moving block is connected to the inner side of the sliding groove, a pushing groove and a connecting groove are respectively bored on both sides of the left side wall of the box body, the pushing groove is connected to the sliding groove, the left side wall of the moving block is connected to the pushing block, the pushing block is located on the inner side of the pushing groove, the connecting groove is connected to the sliding groove, and the sliding groove is connected to the liquid outlet pipe.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0011] 1. In the utility model, the motor outputs power to drive the rotating rod and the stirring roller to rotate, the rotating rod rotation drives the first bevel gear to rotate, the stirring roller rotation drives the mesh stirring blade to rotate, the mesh stirring blade rotates to stir the methanol solution in the inner cavity of the box body, the first bevel gear rotation drives the meshed second bevel gear to rotate, the second bevel gear rotation drives the second rotating rod and the third gear to rotate, the third gear drives the meshed fourth gear to rotate, the fourth gear rotation drives the first rotating rod and the intake fan to rotate, the intake fan rotates to suck the exhaust gas into the inner cavity of the box body, so that the acid gas in the exhaust gas is absorbed by methanol, when it is not necessary to add exhaust gas, the circular rotating ring is driven to move by changing the position of the moving paddle in the slot, the circular rotating ring drives the second rotating rod to move by pushing the circular frame, so that the second bevel gear and the third gear are respectively disengaged from the meshing of the first bevel gear and the fourth gear, and the intake fan stops rotating.

[0012] 2. This device drives the moving block to move up and down in the sliding groove through the pushing block. When the moving block moves downward, it will block the connecting groove, so that the methanol can be kept in the inner cavity of the box without leakage. When the moving block moves upward, the connecting groove, the sliding groove and the liquid outlet pipe are connected, so that the methanol after the reaction can be discharged from the inner cavity of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 This is the front view of the utility model;

[0015] Figure 3 This is a cross-sectional view of the inner cavity of the box of the utility model;

[0016] Figure 4 This is a cross-sectional view of the air intake component of the utility model;

[0017] Figure 5 For this utility model Figure 3 Enlarged view of part A.

[0018] Legend:

[0019] 1. Box body; 2. Support frame; 3. Purification box; 4. Drop plate; 5. Air pipe; 6. Air inlet pipe; 7. Fixed frame; 701, Notch; 8. Motor; 9. Rotating rod; 10. Stirring roller; 11. Mesh stirring blade; 12. Liquid outlet pipe; 13. Round frame; 14. Rotating ring; 15. Moving paddle; 16. Second rotating rod; 17. Inlet fan; 18. First rotating rod; 19. First bevel gear; 20. Second bevel gear; 21. Third gear; 22. Fourth gear; 23. Connecting groove; 24. Pushing groove; 25. Moving block; 2501, Sliding groove; 26. Pushing block; 27. Liquid inlet pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-5A low-temperature methanol tail gas washing treatment equipment comprises a box body 1, an air inlet piece is arranged on the right side of the box body 1, and the air inlet piece is used to transport the reaction gas into the inner cavity of the box body 1, and a liquid inlet pipe 27 is fixedly connected to the front side of the box body 1, and the liquid inlet pipe 27 is used to input methanol into the inner cavity of the box body 1, and a support frame 2 and a fixed frame 7 are fixedly connected to the top of the box body 1, and the support frame 2 is located on the left side of the fixed frame 7. A stirring piece is arranged in the inner cavity and the top of the box body 1, and the stirring piece is used to stir the methanol solution in the inner cavity of the box body 1, so that the methanol solution and the reaction gas are better integrated, and a linkage piece is arranged in the inner cavity of the fixed frame 7, and the stirring piece, the linkage piece and the air inlet piece cooperate, and the linkage piece is used to stir the stirring piece and The air inlet parts are linked, and the stirring part can drive the air inlet parts to work together while working. At the same time, when the reaction gas does not need to be increased, the stirring part can be disconnected from the air inlet parts. The left side wall of the box body 1 is provided with an opening and closing part, and the opening and closing part is used to close the box body 1, so as to control the retention of methanol in the inner cavity of the box body 1. The left side wall of the box body 1 is fixedly connected with a liquid outlet pipe 12. After the opening and closing part is opened, the liquid outlet pipe 12 is used to flow out the methanol solution. The left end of the liquid outlet pipe 12 is fixedly connected with a purification box 3. The front side of the purification box 3 is fixedly connected with a liquid drop plate 4. The purification box 3 is used to purify the methanol solution flowing out after the reaction, and the liquid drop plate 4 is used to help collect the methanol solution flowing out of the purification box 3.

[0022] As a preferred embodiment, the air intake component includes an air intake pipe 6, which is fixedly connected to the right side of the housing 1, and an air connecting pipe 5 is fixedly connected to the front side of the air intake pipe 6, and the air connecting pipe 5 and the air intake pipe 6 are communicated. The inner cavity of the air intake pipe 6 is rotatably connected to a first rotating rod 18, and the left end of the first rotating rod 18 is fixedly connected to an air intake fan 17, and the right end of the first rotating rod 18 passes through the right side of the air intake pipe 6 and is fixedly connected to a fourth gear 22. When the fourth gear 22 rotates, the first rotating rod 18 is driven to rotate, and the rotation of the first rotating rod 18 drives the air intake fan 17 to rotate, and the reaction gas is input into the inner cavity of the housing 1 through the rotation of the air intake fan 17.

[0023] As a preferred embodiment, the linkage member includes a second rotating rod 16, which is rotatably connected to the inner cavity of the fixed frame 7. The left and right ends of the second rotating rod 16 pass through the left and right sides of the fixed frame 7 and are respectively fixedly connected to the second bevel gear 20 and the third gear 21. The third gear 21 and the fourth gear 22 are meshed. The outer wall of the second rotating rod 16 is fixedly connected to the circular frame 13, and the circular frame 13 is located on the inner side of the fixed frame 7. The inner side of the circular frame 13 is rotatably connected to the circular ring 14. The front side of the circular ring 14 is fixedly connected to the moving paddle 15. The front side of the fixed frame 7 is opened. Slot 701, the movable paddle 15 is located on the inner side of the slot 701, when the second bevel gear 20 rotates, it drives the second rotating rod 16 and the third gear 21 to rotate, the rotation of the third gear 21 drives the meshing fourth gear 22 to rotate, when it is necessary to release the linkage between the linkage part and the air intake part, move the movable paddle 15 from the left side to the right side of the slot 701, the movement of the movable paddle 15 drives the circular rotating ring 14 to move, the movement of the circular rotating ring 14 drives the circular frame 13 to move, the movement of the circular frame 13 drives the second rotating rod 16 to move, thereby driving the third gear 21 to disengage from the meshing with the fourth gear 22.

[0024] As a preferred embodiment, the stirring member includes a motor 8, which is fixedly connected to the inner top of the support frame 2, and the output end of the motor 8 is fixedly connected to a rotating rod 9, the bottom end of the rotating rod 9 passes through the top of the box body 1 and is fixedly connected to a stirring roller 10, the outer wall of the stirring roller 10 is evenly fixedly connected to a mesh stirring sheet 11, and the outer wall of the rotating rod 9 is fixedly connected to a first bevel gear 19, and the first bevel gear 19 and the second bevel gear 20 are meshed. When the motor 8 outputs power, the rotating rod 9 and the first bevel gear 19 are driven to rotate, the rotation of the rotating rod 9 drives the stirring roller 10 to rotate, and the rotation of the stirring roller 10 drives the mesh stirring sheet 11 to rotate, thereby stirring the methanol solution, and at the same time, the rotation of the first bevel gear 19 drives the meshed second bevel gear 20 to rotate.

[0025] As a preferred embodiment, the opening and closing part includes a moving block 25, a sliding groove 2501 is bored in the inner cavity of the left side wall of the box body 1, the moving block 25 is slidably connected to the inner side of the sliding groove 2501, a pushing groove 24 and a connecting groove 23 are respectively bored on both sides of the left side wall of the box body 1, the pushing groove 24 is connected to the sliding groove 2501, a pushing block 26 is fixedly connected to the left side wall of the moving block 25, the pushing block 26 is located on the inner side of the pushing groove 24, the connecting groove 23 is connected to the sliding groove 2501, the sliding groove 2501 is connected to the liquid outlet pipe 12, when the moving block 25 is pushed to the lower end of the sliding groove 2501 by the pushing block 26, the moving block 25 blocks the connecting groove 23, and when the moving block 25 is moved upward, the connecting groove 23 is connected to the sliding groove 2501 and the liquid outlet pipe 12.

[0026] Specifically, when low-temperature methanol tail gas washing is performed, the methanol solution is input into the inner cavity of the box body 1 through the liquid inlet pipe 27, and then the motor 8 outputs power, the rotating rod 9 is driven to rotate, the rotating rod 9 rotates to drive the stirring roller 10 to rotate, and the stirring roller 10 rotates to drive the mesh stirring sheet 11 to rotate, so as to stir the methanol solution, and at the same time, the first bevel gear 19 rotates to drive the meshed second bevel gear 20 to rotate, and when the second bevel gear 20 rotates, it drives the second rotating rod 16 and the third gear 21 to rotate, and the third gear 21 rotates to drive the meshed fourth gear 22 to rotate, and when the fourth gear 22 rotates, the first rotating rod 18 is driven to rotate, and the rotation of the first rotating rod 18 drives the intake fan 17 to rotate, and the rotation of the intake fan 17 will reverse The gas is input into the inner cavity of the box body 1. When the linkage between the linkage part and the air inlet part needs to be released, the movable paddle 15 is moved from the left side to the right side of the slot 701. The movement of the movable paddle 15 drives the circular rotating ring 14 to move. The movement of the circular rotating ring 14 drives the circular frame 13 to move. The movement of the circular frame 13 drives the second rotating rod 16 to move, thereby driving the third gear 21 to disengage from the meshing with the fourth gear 22, so that the equipment only performs stirring work. When the reaction in the box body 1 is completed, the movable block 25 is moved upward to connect the connecting groove 23 with the sliding groove 2501 and the liquid outlet pipe 12, so that the methanol solution after the reaction is completed flows into the purification box 3 through the liquid outlet pipe 12, and then the methanol solution is purified by the purification box 3 and flows down from the front liquid drop plate 4 for collection.

Claims

1. A low-temperature methanol tail gas treatment device, comprising a housing (1), characterized in that: An air inlet member is arranged on the right side of the box body (1), a liquid inlet pipe (27) is connected to the front side of the box body (1), a support frame (2) and a fixed frame (7) are connected to the top of the box body (1), the support frame (2) is located on the left side of the fixed frame (7), a stirring member is arranged in the inner cavity and the top of the box body (1), a linkage member is arranged in the inner cavity of the fixed frame (7), the stirring member, the linkage member and the air inlet member cooperate with each other, an opening and closing member is arranged on the left side wall of the box body (1), a liquid outlet pipe (12) is connected to the left side wall of the box body (1), a purification box (3) is connected to the left end of the liquid outlet pipe (12), and a liquid drop plate (4) is connected to the front side of the purification box (3).

2. The low-temperature methanol tail gas treatment equipment according to claim 1 is characterized in that: The air intake component comprises an air intake pipe (6), the air intake pipe (6) is connected to the right side of the box body (1), the front side of the air intake pipe (6) is connected to an air connection pipe (5), the air connection pipe (5) and the air intake pipe (6) are in communication, the inner cavity of the air intake pipe (6) is connected to a first rotating rod (18), the left end of the first rotating rod (18) is connected to an air intake fan (17), and the right end of the first rotating rod (18) passes through the right side of the air intake pipe (6) and is connected to a fourth gear (22).

3. The low-temperature methanol tail gas treatment equipment according to claim 2 is characterized in that: The linkage member comprises a second rotating rod (16), the second rotating rod (16) being connected to the inner cavity of the fixed frame (7), the left and right ends of the second rotating rod (16) penetrating the left and right sides of the fixed frame (7) and being respectively connected to a second bevel gear (20) and a third gear (21), the third gear (21) and a fourth gear (22) being meshed with each other, the outer wall of the second rotating rod (16) being connected to a circular frame (13), the circular frame (13) being located on the inner side of the fixed frame (7), the inner side of the circular frame (13) being connected to a circular rotating ring (14), the front side of the circular rotating ring (14) being connected to a movable paddle (15), the front side of the fixed frame (7) being provided with a notch (701), the movable paddle (15) being located on the inner side of the notch (701).

4. The low-temperature methanol tail gas treatment equipment according to claim 3 is characterized in that: The stirring member comprises a motor (8), the motor (8) being connected to the inner top of the support frame (2), the output end of the motor (8) being connected to a rotating rod (9), the bottom end of the rotating rod (9) passing through the top of the box body (1) being connected to a stirring roller (10), the outer side wall of the stirring roller (10) being evenly connected to a mesh stirring sheet (11), the outer side wall of the rotating rod (9) being connected to a first bevel gear (19), and the first bevel gear (19) and the second bevel gear (20) being meshed with each other.

5. The low-temperature methanol tail gas treatment equipment according to claim 1 is characterized in that: The opening and closing member comprises a moving block (25); a sliding groove (2501) is bored in the inner cavity of the left side wall of the box body (1); the moving block (25) is connected to the inner side of the sliding groove (2501); a pushing groove (24) and a connecting groove (23) are bored on both sides of the left side wall of the box body (1); the pushing groove (24) is connected to the sliding groove (2501); the left side wall of the moving block (25) is connected to a pushing block (26); the pushing block (26) is located on the inner side of the pushing groove (24); the connecting groove (23) is connected to the sliding groove (2501); and the sliding groove (2501) is connected to the liquid outlet pipe (12).

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