Absorption tower for chlorinated tail gas in chlorocyclohexane synthesis

Abstract

The utility model provides an absorption tower for chlorinated tail gas in chlorocyclohexane synthesis, which comprises an absorption tower body, a first shunt ring is arranged in the absorption tower body, and a second shunt ring and a third shunt ring are sequentially arranged in the first shunt ring. The first flow dividing ring, the second flow dividing ring and the third flow dividing ring are in through connection through communicating pipes, first atomizing nozzles and second atomizing nozzles are mounted on the bottom end surfaces and the side surfaces of the first flow dividing ring, the second flow dividing ring and the third flow dividing ring, and a pump body is mounted on the outer side surface of the absorption tower body; the input end of the pump body is communicated with the bottom end in the absorption tower body through a pipeline, and the output end of the pump body is communicated with the first shunt ring through a pipeline. According to the tail gas purifying device, the first flow dividing ring, the second flow dividing ring, the third flow dividing ring, the first atomizing spray head and the second atomizing spray head are matched for use, so that purified liquid can be in full contact with tail gas conveniently, and the tail gas can be fully treated conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to an absorption tower for chlorinated tail gas in chlorocyclohexane synthesis. Background Art

[0002] Chlorocyclohexane is a basic raw material for organic synthesis and an important fine chemical product. It is mainly used as an intermediate for rubber anti-scorch agent CTP, pharmaceutical benzene hydrochloride, pesticide tricyclotin and other products; it can also be used in the synthesis of polyurethane foaming catalyst N, N-dimethylcyclohexylamine, rust inhibitors and the like. In the preparation method of chlorocyclohexane, the cyclohexane method uses cyclohexane and chlorine as raw materials, and the chlorine atom replaces a hydrogen atom on the cyclohexane ring to generate chlorocyclohexane and hydrochloric acid gas. The hydrochloric acid gas and a small amount of overflowed chlorine are discharged as tail gas.

[0003] After extensive searching, it was found that the treatment of chlorinated tail gas in the synthesis of chlorocyclohexane in the prior art is generally carried out by spraying inside the absorption tower. Although this method is feasible, the spraying method is single, resulting in insufficient contact with the tail gas and poor treatment effect.

[0004] Therefore, it is necessary to provide an absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model provides an absorption tower for chlorinated tail gas in chlorocyclohexane synthesis, which solves the problems in the background technology.

[0006] In order to solve the above technical problems, the utility model provides an absorption tower for chlorinated tail gas in chlorocyclohexane synthesis, including an absorption tower body, a first diverter ring is arranged inside the absorption tower body, a second diverter ring and a third diverter ring are arranged in sequence inside the first diverter ring, the first diverter ring, the second diverter ring and the third diverter ring are connected through a connecting pipe, a first atomizing nozzle and a second atomizing nozzle are installed on the bottom end surface and side of the first diverter ring, a pump body is installed on the outer surface of the absorption tower body, the input end of the pump body is connected to the bottom end of the absorption tower body through a pipeline, and the output end of the pump body is connected to the first diverter ring through a pipeline.

[0007] Preferably, a purification box is provided on the surface of the absorption tower body through a connecting rod, an electric push rod is installed on the outer surface of the purification box, a base plate is provided at the output end of the electric push rod, an installation frame is provided on the top surface of the base plate, and an activated carbon adsorption plate is clamped inside the installation frame.

[0008] Preferably, the surface of the absorption tower body is connected to the purification box through a delivery pipe.

[0009] Preferably, an exhaust pipe is provided through the bottom surface of the base plate.

[0010] Preferably, an air inlet pipe is provided on the surface of the absorption tower body, one end of the air inlet pipe extends to the interior of the absorption tower body, an air outlet nozzle is provided on the surface of the air inlet pipe, and a one-way valve is installed on the surface of the air outlet nozzle.

[0011] Preferably, a drainage pipe is provided below the surface of the absorption tower body, and a supporting leg is provided at the bottom end of the absorption tower body. There are multiple supporting legs, and the multiple supporting legs are equidistantly installed on the bottom end surface of the absorption tower body.

[0012] Preferably, a controller is installed on the outer surface of the absorption tower body.

[0013] Compared with the related art, the absorption tower for chlorinated tail gas in chlorocyclohexane synthesis provided by the utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane is convenient for making the purified liquid fully contact with the tail gas by setting the first diverter ring, the second diverter ring, the third diverter ring, the first atomizing nozzle and the second atomizing nozzle, so that during operation, the staff first pours the specified purified liquid into the absorption tower body, and then in the subsequent work, the staff connects the air inlet pipe with the tail gas outlet, and then the chlorinated tail gas in the synthesis of chlorocyclohexane enters the absorption tower body through the air inlet pipe, and then the pump body is started, and then under the action of the pump body, the internal liquid is transported to the first diverter ring, the second diverter ring and the third diverter ring by pipeline. Inside, the liquid is sprayed out through the first atomizing nozzle and the second atomizing nozzle, and then the liquid is sprayed vertically downward and horizontally, so as to fully contact with the exhaust gas, which is convenient for fully treating the exhaust gas. By setting the coordinated use of the electric push rod, the base plate and the mounting frame, it is convenient to replace the activated carbon adsorption plate. When the activated carbon adsorption plate needs to be replaced, it is only necessary to start the electric push rod, and then the electric push rod drives the sealing plate to move downward, thereby driving the mounting frame out of the purification box, and then the activated carbon adsorption plate is exposed, so that it can be replaced. After replacement, it can be sealed by the above method. This method is simple to operate and convenient for quick replacement of the activated carbon adsorption plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane provided by the utility model;

[0016] Figure 2 A schematic diagram of the internal structure of an absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane provided by the utility model;

[0017] Figure 3A schematic diagram of the structure of a purification box absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane provided by the utility model;

[0018] Figure 4 The utility model provides a structural schematic diagram of a first split-flow ring absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane.

[0019] Numbers in the figure:

[0020] 1. Absorption tower body; 2. Pump body; 3. Controller; 4. Inlet pipe; 5. Support legs; 6. Drain pipe; 7. Exhaust pipe; 8. Bottom plate; 9. Electric push rod; 10. Purification box; 11. Delivery pipe; 12. Connecting rod; 13. First diverter ring; 14. Pipeline; 15. First atomizing nozzle; 16. Air outlet nozzle; 17. One-way valve; 18. Mounting frame; 19. Activated carbon adsorption plate; 20. Second atomizing nozzle; 21. Second diverter ring; 22. Third diverter ring; 23. Connecting pipe. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] First embodiment

[0023] Please refer to Figure 1-4 An absorption tower for chlorinated tail gas in chlorocyclohexane synthesis, comprising an absorption tower body 1, wherein a first diverter ring 13 is arranged inside the absorption tower body 1, and a second diverter ring 21 and a third diverter ring 22 are arranged inside the first diverter ring 13 in sequence, and the first diverter ring 13, the second diverter ring 21 and the third diverter ring 22 are connected through a connecting pipe 23, and a first atomizing nozzle 15 and a second atomizing nozzle 20 are installed on the bottom end surface and side of the first diverter ring 13, the second diverter ring 21 and the third diverter ring 22, and a pump body 2 is installed on the outer surface of the absorption tower body 1, and the input end of the pump body 2 is connected to the bottom end of the absorption tower body 1 through a pipeline 14, and the output end of the pump body 2 is connected to the first diverter ring 13 through a pipeline 14.

[0024] By setting the first diverter ring 13, the second diverter ring 21, the third diverter ring 22, the first atomizing nozzle 15 and the second atomizing nozzle 20 for coordinated use, it is convenient to make the purified liquid fully contact with the tail gas, so that during operation, the staff first pours the specified purified liquid into the inside of the absorption tower body 1, and then in the subsequent work, the staff connects the air inlet pipe 4 with the tail gas outlet, and then the chlorinated tail gas in the chlorocyclohexane synthesis enters the inside of the absorption tower body 1 through the air inlet pipe 4, and then the pump body 2 is started, and then under the action of the pump body 2, the internal liquid is transported to the first diverter ring 13, the second diverter ring 21 and the third diverter ring 22 by the pipeline 14, and then the liquid is sprayed out through the first atomizing nozzle 15 and the second atomizing nozzle 20, and then the liquid is sprayed vertically downward and horizontally, so as to be fully in contact with the tail gas, which is convenient for sufficient treatment of the tail gas.

[0025] The working principle of the absorption tower of chlorinated tail gas in the synthesis of chlorocyclohexane provided by the utility model is as follows:

[0026] When operating the absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane, the staff first pours the designated purified liquid into the absorption tower body 1, and then in the subsequent work, the staff connects the air inlet pipe 4 with the tail gas outlet, and then the chlorinated tail gas in the synthesis of chlorocyclohexane enters the absorption tower body 1 through the air inlet pipe 4, and then the pump body 2 is started, and then under the action of the pump body 2, the internal liquid is transported to the first diverter ring 13, the second diverter ring 21 and the third diverter ring 22 by the pipeline 14, and then the liquid is sprayed out through the first atomizing nozzle 15 and the second atomizing nozzle 20, and then the liquid is vertically downward. and horizontally sprayed, so as to fully contact with the exhaust gas, which is convenient for fully treating the exhaust gas. By setting the coordinated use of the electric push rod 9, the bottom plate 8 and the mounting frame 18, it is convenient to replace the activated carbon adsorption plate 19. When the activated carbon adsorption plate 19 needs to be replaced, it is only necessary to start the electric push rod 9, and then the electric push rod 9 drives the sealing plate to move downward, thereby driving the mounting frame 18 to move out of the purification box 10, and then the activated carbon adsorption plate 19 is exposed, so that it can be replaced. After replacement, it can be sealed by the above method. This method is simple to operate and convenient for quick replacement of the activated carbon adsorption plate 19.

[0027] Compared with the related art, the absorption tower for chlorinated tail gas in chlorocyclohexane synthesis provided by the utility model has the following beneficial effects:

[0028] The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane is convenient for fully contacting the purified liquid with the tail gas by setting the first diverter ring 13, the second diverter ring 21, the third diverter ring 22, the first atomizing nozzle 15 and the second atomizing nozzle 20 for coordinated use, so that during operation, the staff first pours the designated purified liquid into the absorption tower body 1, and then in subsequent work, the staff connects the air inlet pipe 4 with the tail gas outlet, and then the chlorinated tail gas in the synthesis of chlorocyclohexane enters the absorption tower body 1 through the air inlet pipe 4, and then the pump body 2 is started, and then under the action of the pump body 2, the internal liquid is transported by the pipeline 14 to the first diverter ring 13, the second diverter ring 21 and the third diverter ring 22, and then The liquid is then sprayed out through the first atomizing nozzle 15 and the second atomizing nozzle 20, and then the liquid is sprayed vertically downward and horizontally, so that it is fully in contact with the exhaust gas, which is convenient for fully treating the exhaust gas. By setting the coordinated use of the electric push rod 9, the base plate 8, and the mounting frame 18, it is convenient to replace the activated carbon adsorption plate 19. When the activated carbon adsorption plate 19 needs to be replaced, it is only necessary to start the electric push rod 9, and then the electric push rod 9 drives the sealing plate to move downward, thereby driving the mounting frame 18 to move out of the purification box 10, and then the activated carbon adsorption plate 19 is exposed, so that it can be replaced. After replacement, it can be sealed by the above method. This method is simple to operate and convenient for quick replacement of the activated carbon adsorption plate 19.

[0029] Second embodiment

[0030] Please refer to Figure 1-4 Based on the absorption tower of chlorinated tail gas in chlorocyclohexane synthesis provided in the first embodiment of the present application, the second embodiment of the present application proposes another absorption tower of chlorinated tail gas in chlorocyclohexane synthesis. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0031] Specifically, the second embodiment of the present application provides an absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane. The difference is that a purification box 10 is provided on the surface of the absorption tower body 1 through a connecting rod 12, and an electric push rod 9 is installed on the outer surface of the purification box 10. The output end of the electric push rod 9 is provided with a base plate 8, and the top surface of the base plate 8 is provided with a mounting frame 18. An activated carbon adsorption plate 19 is clamped inside the mounting frame 18. By setting the coordinated use of the electric push rod 9, the base plate 8, and the mounting frame 18, it is convenient to replace the activated carbon adsorption plate 19. When the activated carbon adsorption plate 19 needs to be replaced, it is only necessary to start the electric push rod 9, and then the electric push rod 9 drives the sealing plate to move downward, thereby driving the mounting frame 18 to move out of the purification box 10, and then the activated carbon adsorption plate 19 is exposed, so that it can be replaced. After replacement, it can be sealed by the above method. This method is simple to operate and convenient for quick replacement of the activated carbon adsorption plate 19.

[0032] With this technical solution, the surface of the absorption tower body 1 is connected to the purification box 10 through the delivery pipe 11. The delivery pipe 11 is provided to facilitate the delivery of the tail gas.

[0033] With this technical solution, an exhaust pipe 7 is provided through the bottom surface of the bottom plate 8. The exhaust pipe 7 facilitates the discharge of the treated exhaust gas.

[0034] By adopting this technical solution, an air inlet pipe 4 is provided on the surface of the absorption tower body 1, one end of the air inlet pipe 4 extends to the interior of the absorption tower body 1, and an air outlet nozzle 16 is provided on the surface of the air inlet pipe 4. A one-way valve 17 is installed on the surface of the air outlet nozzle 16. The air outlet nozzle 16 is provided to facilitate the entry of exhaust gas, and the one-way valve 17 is used to prevent liquid backflow.

[0035] According to this technical solution, a drainage pipe 6 is provided below the surface of the absorption tower body 1, and a supporting leg 5 is provided at the bottom end of the absorption tower body 1. In addition, a plurality of supporting legs 5 are provided, and the plurality of supporting legs 5 are installed at equal distances on the bottom surface of the absorption tower body 1. By providing the supporting legs 5, it is convenient to support the absorption tower body 1, thereby ensuring the stability of the absorption tower body 1 during operation.

[0036] By adopting this technical solution, a controller 3 is installed on the outer surface of the absorption tower body 1. By setting up the controller 3, it is convenient to control the electrical components inside the absorption tower body 1. The control circuit of the controller 3 can be realized by simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection will not be described in detail.

[0037] It should be noted that all kinds of components used in this application document are standard parts and can be purchased on the market. The specific connection methods of each part adopt conventional means such as mature bolts, rivets and welding in the existing technology. Machinery, parts and electrical equipment all adopt conventional models in the existing technology. Circuit connections adopt conventional connection methods in the existing technology. Electrical equipment are connected to an external safe power supply, and no specific description is given here.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An absorption tower for chlorinated tail gas in chlorocyclohexane synthesis, comprising an absorption tower body (1), characterized in that: The absorption tower body (1) is provided with a first diverter ring (13) inside, and a second diverter ring (21) and a third diverter ring (22) are sequentially provided inside the first diverter ring (13); the first diverter ring (13), the second diverter ring (21) and the third diverter ring (22) are connected through a connecting pipe (23); the first diverter ring (13), the second diverter ring (21) and the third diverter ring (22) are installed with a first atomizing nozzle (15) and a second atomizing nozzle (20) on the bottom end surface and side surface of the first diverter ring (13), the second diverter ring (21) and the third diverter ring (22); a pump body (2) is installed on the outer surface of the absorption tower body (1); the input end of the pump body (2) is connected through a pipeline (14) to the bottom end of the absorption tower body (1); and the output end of the pump body (2) is connected through a pipeline (14) to the first diverter ring (13).

2. The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane according to claim 1, characterized in that: A purification box (10) is arranged on the surface of the absorption tower body (1) via a connecting rod (12); an electric push rod (9) is installed on the outer surface of the purification box (10); a bottom plate (8) is arranged at the output end of the electric push rod (9); a mounting frame (18) is arranged on the top surface of the bottom plate (8); an activated carbon adsorption plate (19) is clamped inside the mounting frame (18).

3. The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane according to claim 1, characterized in that: The surface of the absorption tower body (1) is connected to the purification box (10) through a delivery pipe (11).

4. The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane according to claim 2, characterized in that: An exhaust pipe (7) is provided through the bottom surface of the bottom plate (8).

5. The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane according to claim 1, characterized in that: An air inlet pipe (4) is arranged on the surface of the absorption tower body (1), one end of the air inlet pipe (4) extends into the interior of the absorption tower body (1), an air outlet nozzle (16) is arranged on the surface of the air inlet pipe (4), and a one-way valve (17) is installed on the surface of the air outlet nozzle (16).

6. The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane according to claim 1, characterized in that: A liquid discharge pipe (6) is provided below the surface of the absorption tower body (1), and a support leg (5) is provided at the bottom end of the absorption tower body (1). A plurality of support legs (5) are provided, and the plurality of support legs (5) are installed at equal distances on the bottom end surface of the absorption tower body (1).

7. The absorption tower for chlorinated tail gas in the synthesis of chlorocyclohexane according to claim 1, characterized in that: A controller (3) is installed on the outer surface of the absorption tower body (1).

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