Tail gas treatment device for medical intermediate production

Abstract

The utility model relates to the technical field of medicines, in particular to a tail gas treatment device for producing medical intermediates, which comprises a base, a treatment box, a purified gas outlet, a water tank, a liquid conveying pipe, a spray head, a return pipe and the like. A water tank is fixedly connected to one side of the treatment box, a water pump is arranged in the water tank, a liquid conveying pipe is connected to the water tank, one end of the liquid conveying pipe extends into the treatment box and is provided with a spray head, and the bottom of the treatment box is communicated with the water tank through a backflow pipe. When tail gas enters the impurity removal box and penetrates through the filter screen, solid particles are intercepted in the impurity removal box, primary tail gas treatment is achieved, then a worker can pull the pull rod to drive the scraper to horizontally move to scrape the solid particles, the solid particles fall to the slag opening, and the worker can conveniently open a slag discharging opening valve to discharge slag according to needs; the filter screen can be cleaned in time, and the primary impurity removal efficiency of tail gas is improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical technology, and in particular to a tail gas treatment device for the production of pharmaceutical intermediates. Background Technology

[0002] Pharmaceutical intermediates are organic or inorganic compounds used in drug synthesis to prepare the active ingredients of a target drug. They are key intermediate products in the drug production chain. While not directly used as drugs themselves, they play a crucial role in drug synthesis, determining the quality, purity, and production efficiency of the final drug.

[0003] The production of pharmaceutical intermediates generates a large amount of exhaust gas, which usually contains solid particles and various harmful components. Direct emission without treatment will cause serious environmental pollution. Traditional exhaust gas treatment devices do not take into account the treatment of solid particles, but directly react with the exhaust gas through spraying. This causes solid particles to clump together after contacting the drug solution, which can easily cause pipe blockage, affect the efficiency of exhaust gas treatment, and the cleaning process is time-consuming and labor-intensive, increasing labor costs and equipment maintenance difficulty.

[0004] Therefore, it is necessary to design a tail gas treatment device for the production of pharmaceutical intermediates. Utility Model Content

[0005] In order to overcome the shortcomings of traditional exhaust gas treatment devices that do not take into account the treatment of solid particles and instead react directly with the exhaust gas through spraying, resulting in solid particles agglomerating after contact with the medicine, easily causing pipe blockage and affecting the exhaust gas treatment efficiency, the technical problem to be solved by this utility model is: to provide an exhaust gas treatment device for the production of pharmaceutical intermediates.

[0006] The technical solution of this utility model is: a tail gas treatment device for the production of pharmaceutical intermediates, comprising a base, a treatment box, a clean gas outlet, a water tank, an infusion pipe, a nozzle, a return pipe, a tail gas inlet, a purification mechanism, and a cleaning mechanism. The treatment box is fixedly connected to the top of the base, and a clean gas outlet is provided on the top of the treatment box. A water tank is fixedly connected to one side of the treatment box, and a water pump is provided inside the water tank. An infusion pipe is connected to the water tank, and one end of the infusion pipe extends into the treatment box and is provided with a nozzle. The bottom of the treatment box is connected to the water tank through a return pipe. A tail gas inlet is provided near the water tank in the treatment box. A purification mechanism is provided at the bottom of the treatment box, and one end of the tail gas inlet extends into the purification mechanism. A cleaning mechanism is provided on the purification mechanism.

[0007] Furthermore, a filter plate is slidably connected to the treatment box, and filter cotton is fixedly connected to the filter plate.

[0008] Furthermore, the filter plate and filter cotton are each provided with two sets, one above the other, and the nozzles are also provided with two sets, one above the other and located above the filter plate and the filter cotton, respectively.

[0009] Furthermore, the impurity removal mechanism includes an impurity removal box, a slag discharge port, and a filter screen. The impurity removal box is fixedly connected to the bottom of the treatment box, and the filter screen is fixedly connected inside the impurity removal box. The filter screen is located above the exhaust gas inlet. A slag discharge port is provided at the bottom of the impurity removal box, and one end of the slag discharge port extends out of the treatment box and is equipped with a valve.

[0010] Furthermore, the cleaning mechanism includes a pull rod, a scraper, and a spring. The pull rod is slidably connected inside the impurity removal box. One end of the pull rod is fixedly connected to the scraper, which abuts against the filter screen. The end of the pull rod away from the scraper extends out of the treatment box. A spring is installed on the pull rod, and both ends of the spring are connected to the scraper and the impurity removal box, respectively.

[0011] Furthermore, a baffle is fixedly connected to the top opening of the waste removal box.

[0012] Compared with the prior art, the present invention has the following advantages: 1. When the exhaust gas enters the impurity removal box and passes through the filter screen, the solid particles are intercepted in the impurity removal box, achieving preliminary exhaust gas treatment. Then, the staff can pull the lever to drive the scraper to move horizontally and scrape off the solid particles. The solid particles fall to the slag outlet, which makes it convenient for the staff to open the slag discharge valve as needed to discharge the slag. The filter screen can be cleaned in time to ensure smooth passage of exhaust gas and improve the efficiency of preliminary impurity removal of exhaust gas.

[0013] 2. This utility model provides effective shielding for the top opening of the impurity removal box through the design of the baffle, which can prevent the chemical from entering the impurity removal box during the exhaust gas treatment process, avoid the corrosion and damage of the impurity removal box and its internal structure by the chemical, ensure the normal operation of each component of the device, extend the service life of the device, and improve the stability and reliability of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective.

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the processing box of this utility model.

[0017] Figure 4 This is an exploded view of the pull rod and scraper of this utility model.

[0018] In the attached diagrams: 1: base, 2: treatment box, 21: clean gas outlet, 3: water tank, 4: infusion pipe, 5: nozzle, 6: filter plate, 7: filter cotton, 8: return pipe, 9: impurity removal box, 91: slag discharge port, 10: tail gas inlet, 11: filter screen, 12: pull rod, 13: scraper, 14: spring, 15: baffle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] Example: A tail gas treatment device for the production of pharmaceutical intermediates, such as... Figures 1-4 As shown, the system includes a base 1, a treatment box 2, a clean air outlet 21, a water tank 3, an infusion pipe 4, a nozzle 5, a return pipe 8, an exhaust gas inlet 10, a cleaning mechanism, and a purification mechanism. The treatment box 2 is fixedly connected to the top of the base 1. The clean air outlet 21 is located on the top of the treatment box 2. The water tank 3 is fixedly connected to one side of the treatment box 2. A water pump is installed inside the water tank 3. An infusion pipe 4 is connected to the water tank 3, with one end of the infusion pipe 4 extending into the treatment box 2 and equipped with a nozzle 5. The bottom of the treatment box 2 is connected to the water tank 3 via the return pipe 8. The treatment tank 2 is provided with an exhaust gas inlet 10 near the water tank 3. The bottom of the treatment tank 2 is provided with a cleaning mechanism. One end of the exhaust gas inlet 10 extends into the cleaning mechanism. The cleaning mechanism is provided with a cleaning mechanism. The cleaning mechanism includes a cleaning box 9, a slag discharge port 91 and a filter screen 11. The cleaning box 9 is fixedly connected to the bottom of the treatment tank 2. The filter screen 11 is fixedly connected inside the cleaning box 9. The filter screen 11 is located above the exhaust gas inlet 10. The bottom of the cleaning box 9 is provided with a slag discharge port 91. One end of the slag discharge port 91 extends out of the treatment tank 2 and is provided with a valve.

[0021] like Figure 3 As shown, a filter plate 6 is slidably connected to the treatment box 2, and a filter cotton 7 is fixedly connected to the filter plate 6. The filter plate 6 and the filter cotton 7 are respectively arranged in upper and lower sets, and the nozzle 5 is also arranged in upper and lower sets and is located above the filter plate 6 and the filter cotton 7 respectively. The design of the multi-layer filter plate 6 and filter cotton 7 can slow down the rising speed of the exhaust gas. At the same time, by adsorbing the medicine through the filter cotton 7, the contact surface between the exhaust gas and the medicine can be further increased, thereby improving the exhaust gas treatment efficiency and effectively improving the working quality of the device.

[0022] like Figure 4As shown, the cleaning mechanism includes a pull rod 12, a scraper 13, and a spring 14. The pull rod 12 is slidably connected inside the impurity removal box 9. One end of the pull rod 12 is fixedly connected to the scraper 13, which abuts against the filter screen 11. The end of the pull rod 12 away from the scraper 13 extends out of the treatment box 2. A spring 14 is installed on the pull rod 12. The two ends of the spring 14 are connected to the scraper 13 and the impurity removal box 9, respectively. Pulling the pull rod 12 outward causes the scraper 13 to move horizontally. At this time, the spring 14 is compressed, enabling the scraper 13 to scrape off the solid particles on the filter screen 11. After completion, the pull rod 12 is released. At this time, the spring 14 returns to its original state due to its own properties and pushes the scraper 13 back to its initial position. At the same time, the solid particles fall to the discharge port due to gravity.

[0023] like Figure 4 As shown, a baffle 15 is fixedly connected to the top opening of the impurity removal box 9. The design of the baffle 15 can effectively block the top opening of the impurity removal box 9, preventing the chemical solution from entering the interior of the impurity removal box 9 during exhaust gas treatment, thereby ensuring the stable operation of the device.

[0024] This device is used to treat the exhaust gas generated during the production of pharmaceutical intermediates. During operation, the exhaust gas enters the impurity removal chamber 9 inside the treatment chamber 2 through the exhaust gas inlet 10. The exhaust gas then flows upwards through the filter screen 11, causing solid particles in the exhaust gas to be intercepted and retained within the chamber, thus completing the initial exhaust gas treatment. However, when it is necessary to clean the solid particles from the filter screen 11, the operator pulls the lever 12 outwards. The lever 12 drives the scraper 13 to move horizontally, compressing the spring 14, allowing the scraper 13 to scrape off the solid particles from the filter screen 11. After completion, the lever 12 is released, and the spring 14 returns to its original position due to its own properties, pushing... The scraper 13 returns the solid particles to their initial position, and the solid particles fall to the discharge port due to gravity. Then, the staff can open the valve at the discharge port 91 to discharge the solid particles as needed. The exhaust gas after impurity removal is discharged from the top opening of the impurity removal box 9 into the treatment box 2. Then, the water pump in the water tank 3 is started, and the water pump delivers the chemical solution in the water tank 3 to the infusion pipe 4. After the chemical solution enters the infusion pipe 4, it is sprayed into the treatment box 2 through the nozzle 5 connected to it, so that the exhaust gas in the treatment box 2 reacts chemically with the chemical solution, thereby removing the harmful components contained in the exhaust gas and achieving the purpose of exhaust gas treatment. After treatment, the exhaust gas passes through the filter plate 6 and the filter cotton 7 and is discharged from the clean gas outlet 21, thus ending the work.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tail gas treatment device for the production of pharmaceutical intermediates, characterized in that: It includes a base (1), a treatment box (2), a clean gas outlet (21), a water tank (3), an infusion pipe (4), a nozzle (5), a return pipe (8), an exhaust gas inlet (10), a cleaning mechanism, and a cleaning mechanism. The treatment box (2) is fixedly connected to the top of the base (1). The clean gas outlet (21) is provided on the top of the treatment box (2). The water tank (3) is fixedly connected to one side of the treatment box (2). A water pump is provided inside the water tank (3). An infusion pipe (4) is connected to the water tank (3). One end of the infusion pipe (4) extends into the treatment box (2) and is provided with a nozzle (5). The bottom of the treatment box (2) is connected to the water tank (3) through the return pipe (8). An exhaust gas inlet (10) is provided near the water tank (3) of the treatment box (2). An exhaust gas removal mechanism is provided at the bottom of the treatment box (2). One end of the exhaust gas inlet (10) extends into the exhaust gas removal mechanism. A cleaning mechanism is provided on the exhaust gas removal mechanism.

2. The exhaust gas treatment device for the production of pharmaceutical intermediates according to claim 1, characterized in that: A filter plate (6) is slidably connected to the processing box (2), and a filter cotton (7) is fixedly connected to the filter plate (6).

3. The exhaust gas treatment device for pharmaceutical intermediate production according to claim 2, characterized in that: The filter plate (6) and filter cotton (7) are respectively provided with two sets, one above the other, and the nozzle (5) is also provided with two sets, one above the other and located above the filter plate (6) and the filter cotton (7).

4. A tail gas treatment device for the production of pharmaceutical intermediates according to claim 3, characterized in that: The impurity removal mechanism includes an impurity removal box (9), a slag discharge port (91), and a filter screen (11). The impurity removal box (9) is fixedly connected to the bottom of the treatment box (2). The filter screen (11) is fixedly connected inside the impurity removal box (9). The filter screen (11) is located above the exhaust gas inlet (10). The bottom of the impurity removal box (9) is provided with a slag discharge port (91). One end of the slag discharge port (91) extends out of the treatment box (2) and is equipped with a valve.

5. A tail gas treatment device for the production of pharmaceutical intermediates according to claim 4, characterized in that: The cleaning mechanism includes a pull rod (12), a scraper (13) and a spring (14). The pull rod (12) is slidably connected inside the impurity removal box (9). One end of the pull rod (12) is fixedly connected to the scraper (13). The scraper (13) abuts against the filter screen (11). The end of the pull rod (12) away from the scraper (13) extends out of the treatment box (2). A spring (14) is provided on the pull rod (12). The two ends of the spring (14) are connected to the scraper (13) and the impurity removal box (9) respectively.

6. A tail gas treatment device for the production of pharmaceutical intermediates according to claim 5, characterized in that: A baffle (15) is fixedly connected to the top opening of the impurity removal box (9).

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