Waste gas treatment device in quaternary ammonium salt production

Abstract

The utility model relates to the technical field of quaternary ammonium salt production, in particular to a waste gas treatment device in quaternary ammonium salt production. The waste gas treatment device in quaternary ammonium salt production comprises a reaction kettle, the upper portion of the reaction kettle is connected with a condensation tank through a gas guide pipeline, the condensation tank is connected with a combustion furnace through an adsorption tower, and a liquid phase flow dividing sleeve is arranged on the outer side of the gas guide pipeline and connected with a liquid collecting tank through a liquid collecting tank inlet pipeline. According to the device, the condensation tank, the gas guide pipeline and the liquid phase shunting sleeve are matched for use, a gas phase in the reaction kettle is condensed and cooled in advance, and the cooled liquid phase is collected into the liquid collection tank, so that the liquid phase deposition in the adsorption tower is greatly reduced, and the working efficiency of the adsorption tower is improved; and through the arrangement of the inclined bottom plate, the replacement efficiency of the activated carbon is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quaternary ammonium salt production, in particular to a waste gas treatment device in quaternary ammonium salt production. Background Art

[0002] Quaternary ammonium salts typically appear as white or off-white crystals, are easily soluble in water and other polar solvents, and have good solubility and dispersibility. However, the production process of quaternary ammonium salts may generate a certain amount of waste gas, which generally needs to be treated by waste gas treatment equipment to reduce its impact on the environment.

[0003] In the actual production process, the existing device collects the waste gas and directly sends it into the adsorption tower, where it is adsorbed by the activated carbon in the tower. However, after a long period of operation, a large amount of liquid phase is deposited in the adsorption tower, which seriously reduces the working efficiency of the adsorption tower and makes it difficult to replace the activated carbon. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the purpose of the present utility model is to provide a waste gas treatment device for quaternary ammonium salt production. By using a condensation tank, an air guide pipe and a liquid phase diversion sleeve in combination, the gas phase in the reactor is condensed and cooled in advance, and the cooled liquid phase is collected in a liquid collecting tank, which greatly reduces the liquid phase deposition in the adsorption tower and improves the working efficiency of the adsorption tower; by setting a tilted bottom plate, the replacement efficiency of activated carbon is improved.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The waste gas treatment device in the production of quaternary ammonium salts comprises a reactor, the upper part of the reactor is connected to a condenser via an air guide pipe, the condenser is connected to a combustion furnace via an adsorption tower, a liquid phase splitter sleeve is provided on the outer side of the air guide pipe, and the liquid phase splitter sleeve is connected to the liquid collecting tank via a liquid inlet pipe.

[0007] The liquid phase splitter sleeve is not connected to the reactor, and the condensation plate is set at an angle.

[0008] A stirring paddle driven by a stirring motor is provided inside the reactor, and a disperser is provided below the stirring paddle.

[0009] The liquid phase flow dividing sleeve is communicated with the condensing tank, a condensing plate is provided inside the condensing tank, and a cooling device is provided outside the condensing tank.

[0010] A connecting pipe is connected between the condensation tank and the adsorption tower, and an exhaust gas inlet pipe is provided on the connecting pipe. The exhaust gas inlet pipe is used to collect other exhaust gases in the device and enter the adsorption tower.

[0011] A mesh-shaped spacer barrel is provided inside the adsorption tower, a vent hole is provided on the mesh-shaped spacer barrel, and activated carbon is provided between the mesh-shaped spacer barrel and the vertical wall of the adsorption tower.

[0012] The adsorption tower is provided with an activated carbon feeding port and a gas phase discharging port, and both the activated carbon feeding port and the gas phase discharging port are located between the mesh spacing barrel and the vertical wall of the adsorption tower.

[0013] An activated carbon outlet is provided below the adsorption tower, an inclined bottom plate is provided below the mesh spacer barrel, an air outlet is provided inside the combustion furnace, and a gas phase discharge port is connected to the air outlet through a pipeline.

[0014] The working principle of this utility model is:

[0015] The exhaust gas generated in the reactor enters the condenser through the air duct. The condenser begins operation, and the condensed liquid phase enters the liquid collecting tank through the inlet pipe. The gas phase, mixed with other exhaust gases in the exhaust gas inlet pipe through the connecting pipe, enters the adsorption tower. The exhaust gas enters the mesh spacer barrel at the bottom of the adsorption tower, passes through the through-holes in the mesh spacer barrel, and is adsorbed on the activated carbon. It then enters the combustion furnace through the gas phase discharge port for treatment. The liquid phase diversion sleeve is not connected to the reactor, and the condensation plate is set at an angle. The air duct is higher than the bottom of the condenser.

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

[0017] By adopting the waste gas treatment device in the production of quaternary ammonium salts of the present invention, the gas phase in the reactor is condensed and cooled in advance through the coordinated use of a condensation tank, an air guide pipe and a liquid phase diversion sleeve, and the cooled liquid phase is collected in a liquid collecting tank, which greatly reduces the liquid phase deposition in the adsorption tower and improves the working efficiency of the adsorption tower; and the replacement efficiency of the activated carbon is improved by setting the inclined bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a waste gas treatment device for quaternary ammonium salt production according to the present invention;

[0019] In the figure: 1. Reactor; 2. Disperser; 3. Adsorption tower; 4. Combustion furnace; 5. Liquid collecting tank; 6. Stirring paddle; 7. Condensation tank; 8. Condensation plate; 9. Gas guide pipe; 10. Liquid phase diversion sleeve; 11. Mesh spacer barrel; 12. Activated carbon inlet; 13. Gas phase discharge port; 14. Activated carbon outlet; 15. Gas outlet; 16. Liquid collecting tank inlet pipe; 17. Connecting pipe; 18. Waste gas inlet pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] like Figure 1 As shown, the waste gas treatment device for quaternary ammonium salt production includes a reactor 1. The reactor 1 is connected to a condenser 7 via an air duct 9. The condenser 7 is connected to a combustion furnace 4 via an adsorption tower 3. A liquid phase diversion sleeve 10 is provided on the outside of the air duct 9. The liquid phase diversion sleeve 10 is connected to the liquid collecting tank 5 via a liquid inlet pipe 16. The air duct 9 is higher than the bottom of the condenser 7. A stirring paddle 6 driven by a stirring motor is provided inside the reactor 1, and a disperser 2 is provided below the stirring paddle 6. The liquid phase diversion sleeve 10 is connected to the condenser 7. A condensation plate 8 is provided inside the condenser 7, and a cooling device is provided on the outside of the condenser 7. A connecting pipe 17 is connected between the condenser 7 and the adsorption tower 3. The connecting pipe 17 is provided with an exhaust gas inlet pipe 18. A meshed spacer barrel 11 is provided inside the adsorption tower 3. The meshed spacer barrel 11 is provided with air vents. Activated carbon is provided between the meshed spacer barrel 11 and the wall of the adsorption tower 3. The adsorption tower 3 is provided with an activated carbon inlet 12 and a gas phase discharge port 13, both of which are located between the mesh spacer barrel 11 and the vertical wall of the adsorption tower 3. An activated carbon outlet 14 is provided below the adsorption tower 3, and an inclined bottom plate is provided below the mesh spacer barrel 11. An air outlet 15 is provided inside the combustion furnace 4, and the gas phase discharge port 13 is connected to the air outlet 15 by a pipe.

[0023] The above-mentioned waste gas treatment device in the production of quaternary ammonium salts, when in operation, comprises the following steps:

[0024] (1) The waste gas generated in the reactor 1 enters the condenser 7 through the gas guide pipe 9. The condenser 7 starts to work, and the condensed liquid phase enters the liquid collecting tank 5 through the liquid collecting tank inlet pipe 16. The gas phase is mixed with other waste gases in the waste gas inlet pipe 18 through the connecting pipe 17 and enters the adsorption tower 3; the waste gas enters the mesh spacer barrel 11 from the bottom of the adsorption tower 3, enters the activated carbon through the through holes on the mesh spacer barrel 11 for adsorption, and then enters the combustion furnace 4 through the gas phase discharge port 13 for treatment.

Claims

1. A waste gas treatment device for quaternary ammonium salt production, characterized in that: The reactor (1) comprises a reactor (1), wherein the reactor (1) is connected to a condenser (7) via an air guide pipe (9), the condenser (7) is connected to a combustion furnace (4) via an adsorption tower (3), a liquid phase splitting sleeve (10) is provided on the outside of the air guide pipe (9), and the liquid phase splitting sleeve (10) is connected to a liquid collecting tank (5) via a liquid collecting tank inlet pipe (16).

2. The waste gas treatment device in the production of quaternary ammonium salt according to claim 1, wherein A stirring paddle (6) driven by a stirring motor is provided inside the reactor (1), and a disperser (2) is provided below the stirring paddle (6).

3. The waste gas treatment device in the production of quaternary ammonium salt according to claim 1, wherein The liquid phase flow dividing sleeve (10) is communicated with the condensation tank (7), a condensation plate (8) is provided inside the condensation tank (7), and a cooling device is provided outside the condensation tank (7).

4. The waste gas treatment device in the production of quaternary ammonium salt according to claim 1, wherein A communication pipe (17) is connected between the condensation tank (7) and the adsorption tower (3), and an exhaust gas inlet pipe (18) is provided on the communication pipe (17).

5. The waste gas treatment device in the production of quaternary ammonium salt according to claim 1, wherein A mesh-type spacer barrel (11) is provided inside the adsorption tower (3), the mesh-type spacer barrel (11) is provided with ventilation holes, and activated carbon is provided between the mesh-type spacer barrel (11) and the vertical wall of the adsorption tower (3).

6. The waste gas treatment device in the production of quaternary ammonium salt according to claim 5, characterized in that, The adsorption tower (3) is provided with an activated carbon inlet (12) and a gas phase discharge port (13), and both the activated carbon inlet (12) and the gas phase discharge port (13) are located between the mesh spacer barrel (11) and the vertical wall of the adsorption tower (3).

7. The waste gas treatment device in the production of quaternary ammonium salt according to claim 6, characterized in that An activated carbon outlet (14) is provided below the adsorption tower (3), an inclined bottom plate is provided below the mesh spacer barrel (11), an air outlet (15) is provided inside the combustion furnace (4), and the gas phase discharge port (13) is connected to the air outlet (15) through a pipeline.

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