A tail gas treatment device for 2-chloro-3-cyanopyridine production

Abstract

This utility model discloses a tail gas treatment device for 2-chloro-3-cyanopyridine production, belonging to the field of tail gas treatment technology. The device includes a treatment chamber, an adsorption plate disposed inside the treatment chamber, and a water tank disposed on the side of the adsorption plate. It also includes: a mounting assembly disposed on the side of the adsorption plate; the mounting assembly includes a transmission unit disposed on the top of the treatment chamber, a clamping member disposed outside the transmission unit, and a limiting groove disposed on the top side of the adsorption plate; the transmission unit includes a lead screw and a guide rod disposed opposite to each other on the top of the treatment chamber; and a cooling assembly disposed inside the water tank; the cooling assembly includes a slot disposed on the top surface of the water tank, a mounting plate disposed inside the slot, and a cooling pipe mounted on the bottom of the mounting plate. This utility model, through the installation assembly and cooling assembly, facilitates the assembly and disassembly of the adsorption plate, improves assembly and disassembly efficiency, and avoids excessively high water temperatures inside the water tank.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, and in particular to an exhaust gas treatment device for the production of 2-chloro-3-cyanopyridine. Background Technology

[0002] 2-Chloro-3-cyanopyridine is an important intermediate in the pharmaceutical industry. It can be used to synthesize numerous high-performance drugs to treat various diseases, as well as agricultural chemicals for use as livestock feed additives to increase yields and as fungicides and insecticides. Currently, the synthesis of 2-chloro-3-cyanopyridine generally produces exhaust gases. These gases not only harm the environment but also affect the health of workers; therefore, they need to be treated before being released into the air.

[0003] Existing 2-chloro-3-cyanopyridine production tail gas treatment devices generally include a filter box, an inlet pipe welded to one side of the filter box, and a one-way valve threaded onto the inlet pipe to prevent tail gas backflow. Multiple snap-fit ​​plates are welded into the inner cavity of the filter box, and at least three filter adsorption plates are snapped between the multiple snap-fit ​​plates. One end of the filter adsorption plate passes through the top of the filter box, and two pull rings are welded to the end of the filter adsorption plate that passes through the top of the filter box to facilitate the removal of the filter adsorption plate for cleaning. The harmful gases in the tail gas are treated by water and absorbent liquid in the water tank and absorption tank.

[0004] While existing 2-chloro-3-cyanopyridine production tail gas treatment devices have the advantage of treating tail gas, it is inconvenient to disassemble and install the filter adsorption plate in actual use. Moreover, when cooling the tail gas with water in the water tank, the water temperature in the tank will rise, and long-term use will lead to a decrease in the cooling effect of the tail gas.

[0005] Therefore, there is an urgent need to provide a tail gas treatment device for the production of 2-chloro-3-cyanopyridine to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art, which is inconvenient to disassemble and assemble the filter adsorption plate in actual use, and the water temperature in the water tank will rise when the exhaust gas is cooled by water in the water tank, resulting in a poor cooling effect on the exhaust gas after long-term use. The present invention provides a 2-chloro-3-cyanopyridine production exhaust gas treatment device.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a 2-chloro-3-cyanopyridine production tail gas treatment device is provided, including a treatment box, an adsorption plate disposed inside the treatment box, a water tank disposed on the side of the adsorption plate, and further comprising:

[0008] Mounting assembly, the mounting assembly being disposed on the side of the adsorption plate;

[0009] The installation assembly includes a transmission unit disposed on the top of the processing box, a clamping member disposed on the outside of the transmission unit, and a limiting groove disposed on the top side of the adsorption plate.

[0010] A cooling component, wherein the cooling component is disposed inside the water tank;

[0011] The cooling assembly includes a slot on the top surface of the water tank, a mounting plate inside the slot, and a cooling pipe installed at the bottom of the mounting plate.

[0012] The present invention is further configured such that: an air inlet is provided on the side wall of the processing box at a position relative to the adsorption plate, and an air inlet pipe is installed at the air inlet.

[0013] The present invention is further configured such that: a placement rack is installed on the inner wall of the processing box, a placement groove is opened on the inner wall of the placement rack, and the adsorption plate is disposed inside the placement groove;

[0014] The processing box has an adsorption space inside, and there are multiple adsorption plates that are equidistantly distributed inside the adsorption space.

[0015] The present invention is further configured such that: a slot is provided on the top surface of the processing box corresponding to the position of the adsorption plate, and a sealing ring is provided on the top of the slot.

[0016] The present invention is further configured such that: the transmission unit includes a lead screw and a guide rod disposed opposite to each other on the top of the processing box, and a handle is installed at one end of the lead screw.

[0017] The present invention is further configured such that: there are multiple sets of clamping members, and the multiple sets of clamping members are equidistantly distributed on the outside of the lead screw;

[0018] The clamping member includes a first limiting plate and a second limiting plate disposed opposite to each other on the outside of the adsorption plate. Both the first limiting plate and the second limiting plate have protrusions installed on their sides opposite to the adsorption plate, and the size of the protrusions is adapted to the size of the limiting groove.

[0019] The present invention is further configured such that: threaded holes and guide holes are provided on the sides of the first limiting plate and the second limiting plate respectively; the first limiting plate and the second limiting plate are threadedly connected to the lead screw through the threaded holes; and the guide rod passes through the interior of the guide hole.

[0020] The present invention is further configured such that: there are multiple sets of cooling components, and the multiple sets of cooling components are equidistantly distributed on the top of the water tank;

[0021] The mounting plate is bolted to the inside of the slot;

[0022] A heat dissipation sleeve is installed on the outside of the cooling pipe.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. This utility model uses an installation assembly to connect the air inlet pipe to the external exhaust pipe, then installs the adsorption plate, placing the adsorption plate into the treatment box with the slot, and inserting the adsorption plate into the placement slot of the placement rack for initial positioning. Then, by rotating the handle to drive the lead screw, the first and second limiting plates move relative to each other along the outer side of the lead screw under the action of the threaded pair, causing the protrusion to engage with the limiting slot, thus fixing the adsorption plate in place. When the adsorption plate needs to be disassembled, simply rotate the handle in the opposite direction to separate the protrusion from the limiting slot, and pull the adsorption plate upwards to remove it, facilitating the assembly and disassembly of the adsorption plate and improving assembly and disassembly efficiency.

[0025] 2. This utility model connects the external cold water pipe to the cooling pipe through a cooling component, allowing the coolant to enter the cooling pipe and work with the heat dissipation jacket to cool the water inside the water tank, thereby preventing the water temperature inside the water tank from becoming too high and achieving a better cooling effect on the exhaust gas. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the mounting component and cooling component of this utility model;

[0028] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0029] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0030] In the diagram: 1. Processing box; 11. Air inlet pipe; 12. Placement rack; 13. Placement slot; 14. Adsorption space; 15. Slot opening; 16. Sealing ring; 2. Adsorption plate; 3. Water tank; 4. Mounting assembly; 41. Transmission unit; 411. Lead screw; 412. Guide rod; 42. Clamping component; 421. First limiting plate; 422. Second limiting plate; 423. Protrusion; 43. Limiting slot; 5. Cooling assembly; 51. Slot; 52. Mounting plate; 53. Cooling pipe; 531. Heat dissipation sleeve. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0032] Please see Figure 1 - Figure 4 A tail gas treatment device for 2-chloro-3-cyanopyridine production includes a treatment chamber 1, an adsorption plate 2 disposed inside the treatment chamber 1, and a water tank 3 disposed on the side of the adsorption plate 2, and further includes:

[0033] Mounting component 4 is located on the side of the adsorption plate 2. Mounting component 4 is used to install and remove the adsorption plate 2, thereby improving the efficiency of installation and removal.

[0034] The mounting assembly 4 includes a transmission unit 41 disposed on the top of the processing box 1, a clamping member 42 disposed on the outside of the transmission unit 41, and a limiting groove 43 disposed on the top side of the adsorption plate 2.

[0035] Cooling component 5 is installed inside water tank 3;

[0036] The cooling assembly 5 includes a slot 51 disposed on the top surface of the water tank 3, a mounting plate 52 disposed inside the slot 51, and a cooling pipe 53 mounted on the bottom of the mounting plate 52. Preferably, the cooling pipe 53 is as follows: Figure 2 As shown, it consists of multiple S-shaped tubes connected end to end.

[0037] The treatment box 1 has an air inlet on its side wall relative to the adsorption plate 2. An air inlet pipe 11 is installed at the air inlet and is used to connect to the exhaust gas pipeline.

[0038] The inner wall of the processing box 1 is equipped with a placement rack 12, and the inner wall of the placement rack 12 is provided with a placement groove 13, and the adsorption plate 2 is disposed inside the placement groove 13.

[0039] The treatment box 1 has an adsorption space 14 inside, and there are multiple adsorption plates 2. The multiple adsorption plates 2 are equidistantly distributed inside the adsorption space 14. The exhaust gas is purified by the multiple adsorption plates 2.

[0040] The top surface of the treatment box 1 has a slot 15 corresponding to the position of the adsorption plate 2. A sealing ring 16 is provided on the top of the slot 15. The sealing ring 16 is used to seal the gap between the adsorption plate 2 and the slot 15 to prevent exhaust gas from leaking from the slot 15.

[0041] The transmission unit 41 includes a lead screw 411 and a guide rod 412 disposed opposite to each other on the top of the processing box 1, and a handle is installed at one end of the lead screw 411.

[0042] There are multiple sets of clamping members 42, and the multiple sets of clamping members 42 are equidistantly distributed on the outside of the lead screw 411.

[0043] The clamping member 42 includes a first limiting plate 421 and a second limiting plate 422 disposed opposite to each other on the outside of the adsorption plate 2. Both the first limiting plate 421 and the second limiting plate 422 have protrusions 423 installed on their sides opposite to the adsorption plate 2. The size of the protrusions 423 is adapted to the size of the limiting groove 43.

[0044] The first limiting plate 421 and the second limiting plate 422 are respectively provided with threaded holes and guide holes on their sides. The first limiting plate 421 and the second limiting plate 422 are threadedly connected to the lead screw 411 through the threaded holes. The outer surface of the lead screw 411 is provided with multiple sets of external threads. The guide rod 412 passes through the inside of the guide hole.

[0045] The cooling components 5 are in multiple sets, and the multiple sets of cooling components 5 are equidistantly distributed on the top of the water tank 3.

[0046] Mounting plate 52 is installed inside slot 51 by bolts;

[0047] A heat dissipation sleeve 531 is installed on the outside of the cooling pipe 53. Preferably, there are multiple heat dissipation sleeves 531, which are equidistantly distributed on the outside of the cooling pipe 53.

[0048] In use, the air inlet pipe 11 is first connected to the external exhaust pipe. Then, the adsorption plate 2 is installed. The adsorption plate 2 is placed inside the treatment box 1 through the slot 15 and inserted into the placement slot 13 of the placement rack 12 to initially limit the adsorption plate 2. Then, the screw 411 is rotated by turning the handle. Under the action of the threaded pair, the first limiting plate 421 and the second limiting plate 422 move relative to each other along the outside of the screw 411, thereby causing the protrusion 423 to engage with the limiting slot 43, thereby limiting and fixing the adsorption plate 2. When it is necessary to disassemble the adsorption plate 2, simply turn the handle in the opposite direction to separate the protrusion 423 from the limiting slot 43 and pull the adsorption plate 2 upward to remove it.

[0049] When it is necessary to cool the water inside the water tank 3, the external cold water pipe is connected to the cooling pipe 53, the coolant enters the cooling pipe 53, and the water inside the water tank 3 is cooled through the heat dissipation sleeve 531, thereby preventing the water inside the water tank 3 from becoming too hot.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tail gas treatment device for 2-chloro-3-cyanopyridine production, comprising a treatment chamber (1), an adsorption plate (2) disposed inside the treatment chamber (1), and a water tank (3) disposed on the side of the adsorption plate (2), characterized in that: Also includes: Mounting assembly (4), which is disposed on the side of the adsorption plate (2); The installation assembly (4) includes a transmission unit (41) disposed on the top of the processing box (1), a clamping member (42) disposed on the outside of the transmission unit (41), and a limiting groove (43) disposed on the top side of the adsorption plate (2). Cooling component (5), wherein the cooling component (5) is disposed inside the water tank (3); The cooling component (5) includes a slot (51) disposed on the top surface of the water tank (3), a mounting plate (52) disposed inside the slot (51), and a cooling pipe (53) installed at the bottom of the mounting plate (52).

2. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 1, characterized in that: The processing box (1) has an air inlet on its side wall relative to the adsorption plate (2), and an air inlet pipe (11) is installed at the air inlet.

3. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 2, characterized in that: The inner wall of the processing box (1) is equipped with a placement rack (12), and the inner wall of the placement rack (12) is provided with a placement groove (13). The adsorption plate (2) is disposed inside the placement groove (13). The processing box (1) has an adsorption space (14) inside, and there are multiple adsorption plates (2) that are equidistantly distributed inside the adsorption space (14).

4. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 3, characterized in that: The top surface of the processing box (1) is provided with a slot (15) corresponding to the position of the adsorption plate (2), and a sealing ring (16) is provided on the top of the slot (15).

5. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 4, characterized in that: The transmission unit (41) includes a lead screw (411) and a guide rod (412) disposed opposite to the top of the processing box (1), and a handle is installed at one end of the lead screw (411).

6. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 5, characterized in that: There are multiple sets of clamping members (42), and the multiple sets of clamping members (42) are equidistantly distributed on the outside of the lead screw (411); The clamping member (42) includes a first limiting plate (421) and a second limiting plate (422) disposed opposite to each other on the outside of the adsorption plate (2). The first limiting plate (421) and the second limiting plate (422) are each provided with a protrusion (423) on the side opposite to the adsorption plate (2). The size of the protrusion (423) is adapted to the size of the limiting groove (43).

7. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 6, characterized in that: The first limiting plate (421) and the second limiting plate (422) are respectively provided with threaded holes and guide holes on their sides. The first limiting plate (421) and the second limiting plate (422) are threadedly connected to the lead screw (411) through the threaded holes. The guide rod (412) passes through the inside of the guide hole.

8. The tail gas treatment device for 2-chloro-3-cyanopyridine production according to claim 7, characterized in that: There are multiple sets of cooling components (5), and the multiple sets of cooling components (5) are equidistantly distributed on the top of the water tank (3); The mounting plate (52) is bolted to the inside of the slot (51); A heat dissipation sleeve (531) is installed on the outside of the cooling pipe (53).

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