Medical intermediate chlorination waste gas treatment device

Abstract

The utility model discloses a medical intermediate chlorination waste gas treatment device, which relates to the technical field of waste gas treatment, and comprises a first chlorination waste gas absorption box, the top end of one side of the first chlorination waste gas absorption box is communicated with a first absorption pipe, and the top end of one side of the first absorption pipe is communicated with a shunt pipe; the top end of one side of the flow dividing pipe communicates with a waste gas communicating pipe. Waste gas is absorbed by arranging a waste gas communicating pipe, flow dividing operation is achieved through a flow dividing pipe, waste gas conveying operation is achieved through a first absorbing pipe, waste gas absorbing liquid is arranged in a first chlorinated waste gas absorbing box, and exhaust is achieved through waste gas absorbing holes in the surface of the first absorbing pipe; the absorption liquid in the first chlorinated waste gas absorption box is used for carrying out waste gas absorption and filtration operation, then the transmission pipe is communicated with the second absorption pipe, and the absorption liquid in the second chlorinated waste gas absorption box is used for carrying out absorption and filtration on the transmission waste gas in the second absorption pipe again.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, and in particular relates to a device for treating chlorinated waste gas from pharmaceutical intermediates. Background Technology

[0002] Pharmaceutical intermediates are actually chemical raw materials or products used in the process of drug synthesis. During the preparation of some pharmaceutical intermediates, many chlorination and chlorination processes are generated, resulting in a large amount of chlorinated waste gas. This chlorinated waste gas can be effectively absorbed by spraying appropriate absorbent liquid, thus preventing the discharge of chlorinated waste gas and pollution of the atmosphere.

[0003] Currently, when chlorinated waste gas is absorbed by spray absorption liquid, it takes time for the chlorinated waste gas to dissolve into the absorption liquid. However, the continuous production process of intermediates in the production line continuously generates chlorinated waste gas, resulting in a continuous injection of a large amount of chlorinated waste gas into the spray contact tank. The gas pressure in the spray contact tank continues to rise, and the chlorinated waste gas injection pipeline is affected by the high gas pressure downstream and cannot effectively exhaust the gas. This affects the continuous production of intermediates in the upstream production line, forcing the interruption of the continuous production of intermediates in the production line. After the downstream chlorinated waste gas is absorbed by spray for a period of time, the gas pressure in the downstream spray contact tank will decrease before the intermediate production can continue, which reduces the waste gas treatment efficiency. Therefore, we have redesigned a chlorinated waste gas treatment device for pharmaceutical intermediates. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a device for treating chlorinated waste gas from pharmaceutical intermediates, which solves the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A device for treating chlorinated waste gas from pharmaceutical intermediates includes a first chlorinated waste gas absorption box. A first absorption pipe is connected to one top side of the first chlorinated waste gas absorption box. A diversion pipe is connected to one top side of the first absorption pipe. A waste gas connecting pipe is connected to one top side of the diversion pipe. Waste gas absorption holes are formed on the surface of one top side of the first absorption pipe. A transmission pipe is connected to one top side of the first absorption pipe. A transmission control valve is installed at one top side of the transmission pipe. A second chlorinated waste gas absorption box is connected to one top side of the second chlorinated waste gas absorption box. A second absorption pipe is installed inside the second chlorinated waste gas absorption box. A sealed guide pipe is connected to one top side of the second absorption pipe.

[0007] As a preferred embodiment, the number of the first absorption tubes is several, and the several first absorption tubes are evenly distributed at the top side of the first chlorinated waste gas absorption box, with the first absorption tubes extending into the bottom of the interior of the first chlorinated waste gas absorption box.

[0008] In a preferred embodiment, the number of second absorption tubes is several, and the several second absorption tubes are evenly distributed at the top side of the second chlorination waste gas absorption box, with the second absorption tubes extending into the bottom of the interior of the second chlorination waste gas absorption box.

[0009] In a preferred embodiment, the second absorption tube and the transmission tube are connected, and a waste gas absorption hole is provided on one side surface of the second absorption tube. The waste gas absorption hole penetrates one side surface of the first absorption tube and the waste gas absorption hole penetrates one side surface of the second absorption tube.

[0010] As a preferred embodiment, a residual treatment box is fixedly installed at the top of the inside of the first chlorination waste gas absorption box and the second chlorination waste gas absorption box. The residual treatment box has a residual gas treatment chamber inside, and an absorption filter box is detachably installed inside the residual gas treatment chamber. An absorption filter hole is opened on the bottom surface of one side of the residual treatment box.

[0011] As a preferred embodiment, a feeding pipe is connected to the surface of the first chlorination waste gas absorption box near the second chlorination waste gas absorption box, and a feeding control valve is provided at the top of one side of the feeding pipe.

[0012] As a preferred embodiment, the bottom end of the second chlorination waste gas absorption box near the feeding pipe is connected to a waste discharge pipe, and a waste discharge control valve is provided at the top end of one side of the waste discharge pipe.

[0013] In a preferred embodiment, a gas circulation transmission pipe is connected between the diversion pipe and the sealed guide pipe, and a pump controller is fixedly installed on the back side of the second chlorinated waste gas absorption box near the gas circulation transmission pipe.

[0014] In a preferred embodiment, a data display is mounted on the top front of the pump controller, a control setting is provided on the bottom front of the pump controller, and a vacuum pump is fixedly mounted on the bottom front of the pump controller.

[0015] In a preferred embodiment, the air pump is connected to the gas circulation transmission pipe, and the pump body controller is electrically connected to the air pump.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) This utility model absorbs waste gas by setting up a waste gas connecting pipe, realizes diversion operation by using a diversion pipe, realizes waste gas transmission operation by using a first absorption pipe, sets up waste absorption liquid inside the first chlorination waste gas absorption box, realizes exhaust through the waste gas absorption holes on the surface of the first absorption pipe, uses the absorption liquid inside the first chlorination waste gas absorption box for waste gas absorption and filtration operation, and then connects to the second absorption pipe through the transmission pipe, and once again absorbs and filters the transmitted waste gas inside the second absorption pipe through the absorption liquid inside the second chlorination waste gas absorption box. The dual absorption of waste gas between the first chlorination waste gas absorption box and the second chlorination waste gas absorption box improves the absorption efficiency of the device and improves the comprehensiveness of the waste gas treatment of the device. Through the residual treatment box inside the first chlorination waste gas absorption box and the second chlorination waste gas absorption box, the waste gas that has not been mixed with liquid can be absorbed, further improving the waste gas absorption efficiency.

[0018] (2) By using the feeding pipe and the waste discharge pipe together, this utility model can facilitate the replacement of the waste liquid inside the first chlorination waste gas absorption box and the second chlorination waste gas absorption box, and ensure the absorption efficiency of the absorption liquid. By connecting the gas circulation transmission pipe between the sealed guide pipe and the diversion pipe, the waste gas circulation transmission operation can be realized. The waste gas content inside the second chlorination waste gas absorption box can be monitored by the pump controller. The monitored data cannot be directly discharged. At this time, the start of the air pump can be directly controlled to realize the circulation air extraction operation of the gas circulation transmission pipe. The first chlorination waste gas absorption box and the second chlorination waste gas absorption box are used again for absorption and filtration to ensure the integrity of absorption. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the residual treatment box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the liquid replacement mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the gas circulation treatment equipment of this utility model.

[0023] The diagram is labeled as follows: 1. First chlorination waste gas absorption box; 2. First absorption pipe; 3. Diversion pipe; 4. Waste gas connecting pipe; 5. Waste gas absorption hole; 6. Transmission pipe; 7. Transmission control valve; 8. Second chlorination waste gas absorption box; 9. Second absorption pipe; 10. Sealed guide pipe; 11. Residual treatment box; 12. Residual gas treatment chamber; 13. Absorption filter box; 14. Absorption filter hole; 15. Feeding pipe; 16. Feeding control valve; 17. Waste discharge pipe; 18. Waste discharge control valve; 19. Gas circulation transmission pipe; 20. Pump controller; 21. Data display; 22. Control settings; 23. Vacuum pump. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Example 1 :

[0027] Please see Figures 1 to 4As shown, this utility model embodiment provides a chlorination waste gas treatment device for pharmaceutical intermediates, including a first chlorination waste gas absorption box 1. A first absorption pipe 2 is connected to one top side of the first chlorination waste gas absorption box 1. A diversion pipe 3 is connected to one top side of the first absorption pipe 2. A waste gas connecting pipe 4 is connected to one top side of the diversion pipe 3. A waste gas absorption hole 5 is opened on the surface of one top side of the first absorption pipe 2. A transmission pipe 6 is connected to one top side of the first absorption pipe 2. A transmission control valve 7 is installed on one top side of the transmission pipe 6. A second chlorination waste gas absorption box 8 is connected to one top side of the second chlorination waste gas absorption box 8. A second absorption pipe 9 is arranged inside the second chlorination waste gas absorption box 8. A sealed guide pipe 10 is connected to one top side of the second absorption pipe 9. There are several first absorption pipes 2, which are evenly distributed at intervals on the top side of the first chlorination waste gas absorption box 1. An absorption pipe 2 extends into the bottom of the first chlorination waste gas absorption box 1. Several second absorption pipes 9 are distributed at equal intervals on the top side of the second chlorination waste gas absorption box 8. The second absorption pipes 9 extend into the bottom of the second chlorination waste gas absorption box 8 and are connected to the transmission pipe 6. Waste gas absorption holes 5 are opened on one side surface of the second absorption pipe 9, and the waste gas absorption holes 5 penetrate one side surface of the first absorption pipe 2 and the second absorption pipe 9. A residual treatment box 11 is fixedly installed at the top of the first chlorination waste gas absorption box 1 and the second chlorination waste gas absorption box 8. A residual gas treatment chamber 12 is opened inside the residual gas treatment chamber 11. An absorption filter box 13 is detachably installed inside the residual gas treatment chamber 12. An absorption filter hole 14 is opened on the bottom side surface of the residual treatment box 11.

[0028] In this embodiment, waste gas is absorbed by setting up a waste gas connecting pipe 4, diverted by a diversion pipe 3, and transported by a first absorption pipe 2. Waste absorption liquid is set inside the first chlorination waste gas absorption box 1, and exhaust is achieved through the waste gas absorption holes 5 on the surface of the first absorption pipe 2. The waste gas is absorbed and filtered by the absorption liquid inside the first chlorination waste gas absorption box 1. Then, it is connected to the second absorption pipe 9 through a transmission pipe 6, and the waste gas transported inside the second absorption pipe 9 is absorbed and filtered again by the absorption liquid inside the second chlorination waste gas absorption box 8. The dual absorption of waste gas between the first chlorination waste gas absorption box 1 and the second chlorination waste gas absorption box 8 improves the absorption efficiency of the device and enhances the comprehensiveness of the waste gas treatment. The residual treatment box 11 inside the first chlorination waste gas absorption box 1 and the second chlorination waste gas absorption box 8 can absorb waste gas that has not been mixed with liquid, further improving the waste gas absorption efficiency.

[0029] Example 2 :

[0030] Based on Embodiment 1, this embodiment also includes a feeding pipe 15 connected to the surface of the first chlorination waste gas absorption box 1 near the second chlorination waste gas absorption box 8. A feeding control valve 16 is provided at the top of one side of the feeding pipe 15. A waste discharge pipe 17 is connected to the bottom of the second chlorination waste gas absorption box 8 near the feeding pipe 15. A waste discharge control valve 18 is provided at the top of one side of the waste discharge pipe 17. A gas circulation transmission pipe 19 is connected between the diversion pipe 3 and the sealing guide pipe 10. A pump controller 20 is fixedly installed on the back of the second chlorination waste gas absorption box 8 near the gas circulation transmission pipe 19. A data display 21 is installed at the top of the front of the pump controller 20. A control setting 22 is provided at the bottom of the front of the pump controller 20. A vacuum pump 23 is fixedly installed at the bottom of the front of the pump controller 20. The vacuum pump 23 is connected to the gas circulation transmission pipe 19. The pump controller 20 and the vacuum pump 23 are electrically connected.

[0031] In this embodiment, by using the feeding pipe 15 and the waste discharge pipe 17 together, the absorption liquid inside the first chlorination waste gas absorption box 1 and the second chlorination waste gas absorption box 8 can be easily replaced, ensuring the absorption efficiency of the absorption liquid. The gas circulation transmission pipe 19 between the sealed guide pipe 10 and the diversion pipe 3 can realize the circulation transmission of waste gas. The pump controller 20 can monitor the waste gas content inside the second chlorination waste gas absorption box 8. The monitored data cannot be directly discharged. At this time, the vacuum pump 23 can be directly controlled to start, realizing the circulation and vacuuming operation of the gas circulation transmission pipe 19. The first chlorination waste gas absorption box 1 and the second chlorination waste gas absorption box 8 are used again for absorption and filtration to ensure the integrity of absorption.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for treating chlorinated waste gas from pharmaceutical intermediates, comprising a first chlorinated waste gas absorption box (1), wherein a first absorption pipe (2) is connected to the top of one side of the first chlorinated waste gas absorption box (1), characterized in that: The first absorption pipe (2) is connected to a diversion pipe (3) at one end, and the diversion pipe (3) is connected to a waste gas connecting pipe (4) at one end. A waste gas absorption hole (5) is opened on the surface of the first absorption pipe (2) at one end. A transmission pipe (6) is connected to the first absorption pipe (2) at one end. A transmission control valve (7) is provided on the top end of the transmission pipe (6). A second chlorination waste gas absorption box (8) is connected to the top end of the transmission pipe (6). A second absorption pipe (9) is provided inside the second chlorination waste gas absorption box (8). A sealed guide pipe (10) is connected to the top end of the second absorption pipe (9).

2. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 1, characterized in that: The number of first absorption tubes (2) is several, and several first absorption tubes (2) are evenly distributed on the top side of the first chlorinated waste gas absorption box (1). The first absorption tubes (2) extend into the bottom of the interior of the first chlorinated waste gas absorption box (1).

3. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 1, characterized in that: The number of the second absorption tubes (9) is several, and the several second absorption tubes (9) are evenly distributed on the top side of the second chlorination waste gas absorption box (8), and the second absorption tubes (9) extend into the bottom of the interior of the second chlorination waste gas absorption box (8).

4. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 1, characterized in that: The second absorption tube (9) is connected to the transmission tube (6). A waste gas absorption hole (5) is provided on one side surface of the second absorption tube (9). The waste gas absorption hole (5) penetrates one side surface of the first absorption tube (2) and the waste gas absorption hole (5) penetrates one side surface of the second absorption tube (9).

5. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 1, characterized in that: The first chlorinated waste gas absorption box (1) and the second chlorinated waste gas absorption box (8) are fixedly installed with a residual treatment box (11) at the top inside. The residual treatment box (11) has a residual gas treatment chamber (12) inside. The residual gas treatment chamber (12) has an absorption filter box (13) installed inside. The bottom surface of one side of the residual treatment box (11) has an absorption filter hole (14).

6. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 1, characterized in that: The first chlorinated waste gas absorption box (1) has a feeding pipe (15) connected to the side surface of the second chlorinated waste gas absorption box (8), and a feeding control valve (16) is provided at the top of one side of the feeding pipe (15).

7. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 6, characterized in that: The bottom end of the second chlorination waste gas absorption box (8) near the feeding pipe (15) is connected to the waste discharge pipe (17), and a waste discharge control valve (18) is provided at the top end of the side of the waste discharge pipe (17).

8. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 1, characterized in that: A gas circulation transmission pipe (19) is connected between the diversion pipe (3) and the sealing guide pipe (10), and a pump controller (20) is fixedly installed on the back side of the second chlorinated waste gas absorption box (8) near the gas circulation transmission pipe (19).

9. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 8, characterized in that: A data display (21) is installed on the top front of the pump body controller (20), a control setting (22) is provided on the bottom front of the pump body controller (20), and a vacuum pump (23) is fixedly installed on the bottom front of the pump body controller (20).

10. The pharmaceutical intermediate chlorination waste gas treatment device according to claim 9, characterized in that: The air pump (23) is connected to the gas circulation transmission pipe (19), and the pump body controller (20) is electrically connected to the air pump (23).

Images