Waste gas purification device for bromopyridine electrochemical synthesis

Abstract

The utility model relates to the technical field of waste gas purification, discloses a waste gas purification device for bromo-pyridine electrochemical synthesis, and solves the problems that adsorption cannot be continued after activated carbon adsorption is saturated, activated carbon adsorption cotton is difficult to disassemble and replace in an existing waste gas treatment device, and the treatment effect is easy to reduce. A waste gas purification device for bromopyridine electrochemical synthesis comprises a base, a waste gas adsorption box, a waste gas washing box, a connecting gas pipe and a telescopic assembly, a hook is pulled downwards, a spring is in an extension state, the hook is connected with a hanging buckle, at the moment, the hook and the hanging buckle are fixed under the reaction of the spring, the hook is prevented from loosening, and an electric push rod is started; an electric push rod moves upwards to drive a connecting column to move upwards, the connecting column moves upwards to drive a spring and a hook to move upwards, so that a box cover is driven to move upwards, the box cover moves upwards to drive a connecting rod and a filter cotton assembly to move upwards, and the filter cotton assembly is conveniently taken out from the interior of the waste gas adsorption box.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a waste gas purification device for electrochemical synthesis of brominated pyridine. Background Art

[0002] Electrochemical synthesis of bromopyridine is an organic synthesis method that uses electrochemical methods to introduce halogen atoms into the reaction. This method uses the redox effect in the electrochemical reaction to generate high-energy species on the electrode surface or in the electrolyte solution, which react with organic molecules.

[0003] During the electrochemical synthesis of bromopyridine, some side reactions or volatilization of additional substances occurred, resulting in the production of a gas mixture containing organic compounds. These organic compounds are volatile, toxic, and have odor characteristics, so they need to be treated to purify the discharge. Existing waste gas treatment often uses activated carbon adsorption cotton for adsorption purification. During the activated carbon adsorption process, as the pollutants increase, the adsorption cannot continue after saturation, so the activated carbon adsorption cotton needs to be replaced. It is difficult to disassemble and replace the activated carbon adsorption cotton in the existing waste gas treatment device, which easily leads to a decrease in the treatment effect. Utility Model Content

[0004] The utility model aims to provide a waste gas purification device for electrochemical synthesis of brominated pyridine. The device is used to work, thereby solving the problem that activated carbon cannot continue to adsorb after being saturated, and the existing waste gas treatment device is difficult to disassemble and replace the activated carbon adsorption cotton, which easily leads to a decrease in the treatment effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas purification device for electrochemical synthesis of brominated pyridine, comprising a base, an exhaust gas adsorption box and an exhaust gas washing box are fixedly connected to the top of the base, a connecting air pipe is fixedly passed through the exhaust gas adsorption box and the exhaust gas washing box, and a telescopic component is provided on the top of the base for facilitating the removal of the adsorption cotton;

[0006] The telescopic assembly includes an electric push rod fixedly connected to the top of the base, a top plate fixedly connected to the top of the electric push rod, a connecting column fixedly connected to the bottom of the top plate, a spring fixedly connected to the bottom of the connecting column, a hook fixedly connected to the bottom of the spring, a box cover movably arranged at the top of the exhaust gas adsorption box, a hanging buckle fixedly connected to the top of the box cover, and a connecting rod fixedly connected to the bottom of the box cover, the hook and the hanging buckle are movably connected, and a filter cotton assembly is arranged at the bottom of the connecting rod, and the filter cotton assembly is arranged inside the exhaust gas adsorption box.

[0007] Furthermore, the filter cotton assembly includes a first fixing plate and a second fixing plate, a first slot provided on the lower surface of the first fixing plate, a second slot provided on the upper surface of the second fixing plate, a filter cotton body arranged between the first slot and the second slot, and a locking bolt threadedly connected between the first fixing plate and the second fixing plate, the filter cotton body is engaged with the first slot and the second slot, and the first fixing plate is fixedly connected to the connecting rod.

[0008] Furthermore, an air intake pipe is fixedly passed through one side of the exhaust gas adsorption box, and a sealing gasket is fixedly connected to the connection between the exhaust gas adsorption box and the box cover.

[0009] Furthermore, a water pump is fixedly connected to the top of the exhaust gas washing box, one end of the water pump is fixedly connected to a water inlet pipe, the other end of the water pump is fixedly connected to a connecting water pipe, the bottom end of the connecting water pipe is fixedly connected to a diversion pipe, a nozzle is fixedly connected to the outer surface of the diversion pipe, and the connecting water pipe is connected through the exhaust gas washing box.

[0010] Furthermore, an exhaust pipe is fixedly passed through the top of the exhaust gas scrubbing box, and an air pump is fixedly connected to the outer surface of the exhaust pipe.

[0011] Furthermore, a drain pipe is fixedly passed through one side of the exhaust gas washing box, and a valve is fixedly connected to the outer surface of the drain pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model proposes a waste gas purification device for electrochemical synthesis of brominated pyridine. When the hook is pulled downward, the spring is in an extended state, and the hook is connected to the hook buckle. At this time, the hook and the hook are fixed under the reaction of the spring to prevent the hook from loosening. The electric push rod is started, and the electric push rod moves upward to drive the connecting column to move upward. The spring has a sufficiently large elastic potential energy to prevent the spring from being stretched when the connecting column moves upward. Therefore, the connecting column moves upward to drive the spring and the hook to move upward, thereby driving the box cover to move upward. The box cover moves upward to drive the connecting rod and the filter cotton assembly to move upward, and the filter cotton assembly is taken out from the inside of the waste gas adsorption box, which solves the problem that the activated carbon cannot continue to adsorb after being saturated, and the existing waste gas treatment device is difficult to disassemble and replace the activated carbon adsorption cotton, which easily leads to a decrease in the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the waste gas adsorption box of the utility model;

[0016] Figure 3 This is a schematic diagram of the telescopic assembly structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the filter cotton component of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the exhaust gas washing box of the utility model.

[0019] In the figure: 1. base; 2. exhaust gas adsorption box; 21. air inlet pipe; 22. sealing gasket; 3. exhaust gas washing box; 31. drain pipe; 311. valve; 32. exhaust pipe; 321. air pump; 4. telescopic assembly; 41. electric push rod; 42. top plate; 43. connecting column; 44. spring; 45. hook; 46. hook; 47. box cover; 48. connecting rod; 5. filter cotton assembly; 51. first fixing plate; 52. first card slot; 53. filter cotton body; 54. second card slot; 55. second fixing plate; 56. locking bolt; 6. connecting air pipe; 7. water pump; 71. water inlet pipe; 72. connecting water pipe; 721. diverter pipe; 7211. nozzle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1-Figure 2 A waste gas purification device for electrochemical synthesis of brominated pyridine includes a base 1, a waste gas adsorption box 2 and a waste gas washing box 3 are fixedly connected to the top of the base 1, a connecting air pipe 6 is fixedly passed through the waste gas adsorption box 2 and the waste gas washing box 3, and a telescopic component 4 is provided on the top of the base 1 for facilitating the removal of the adsorption cotton.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Embodiment 1:

[0025] See also Figure 2-Figure 5The telescopic assembly 4 includes an electric push rod 41 fixedly connected to the top of the base 1, a top plate 42 fixedly connected to the top of the electric push rod 41, a connecting column 43 fixedly connected to the bottom of the top plate 42, a spring 44 fixedly connected to the bottom of the connecting column 43, a hook 45 fixedly connected to the bottom of the spring 44, a box cover 47 movably arranged at the top of the exhaust gas adsorption box 2, a hook 46 fixedly connected to the top of the box cover 47, and a connecting rod 48 fixedly connected to the bottom of the box cover 47, the hook 45 is movably connected to the hook 46, and a filter cotton assembly 5 is arranged at the bottom of the connecting rod 48, and the filter cotton assembly 5 is arranged inside the exhaust gas adsorption box 2, and the hook is pulled downward 45, the spring 44 is in an extended state, connecting the hook 45 with the hook 46. At this time, the hook 45 and the hook 46 are fixed under the reaction of the spring 44 to prevent the hook 45 from loosening, and the electric push rod 41 is started. The electric push rod 41 moves upward to drive the connecting column 43 to move upward. The spring 44 has a large enough elastic potential energy to prevent the spring 44 from being stretched when the connecting column 43 moves upward. Therefore, the connecting column 43 moves upward to drive the spring 44 and the hook 45 to move upward, thereby driving the box cover 47 to move upward. The box cover 47 moves upward to drive the connecting rod 48 and the filter cotton assembly 5 to move upward, and the filter cotton assembly 5 is taken out from the exhaust gas adsorption box 2.

[0026] The filter cotton assembly 5 includes a first fixing plate 51 and a second fixing plate 55, a first slot 52 provided on the lower surface of the first fixing plate 51, a second slot 54 provided on the upper surface of the second fixing plate 55, a filter cotton body 53 arranged between the first slot 52 and the second slot 54, and a locking bolt 56 threadedly connected between the first fixing plate 51 and the second fixing plate 55. The filter cotton body 53 is both engaged with the first slot 52 and the second slot 54, and the first fixing plate 51 is fixedly connected to the connecting rod 48. In the initial state, the filter cotton body 53 is both engaged with the first slot 52 and the second slot 54, and the locking bolt 56 is both threadedly connected to the first fixing plate 51 and the second fixing plate 55. When the filter cotton body 53 needs to be replaced, the locking bolt 56 is taken out, and the first fixing plate 51 is separated from the second fixing plate 55, so as to facilitate the removal of the filter cotton body 53 and the replacement of the filter cotton body 53.

[0027] An air intake pipe 21 is fixedly passed through one side of the exhaust gas adsorption box 2, and a sealing gasket 22 is fixedly connected to the connection between the exhaust gas adsorption box 2 and the box cover 47. The exhaust gas enters the exhaust gas adsorption box 2 through the air intake pipe 21 for adsorption and purification. The sealing gasket 22 effectively fills the gap at the connection to prevent exhaust gas leakage from affecting the environment.

[0028] A water pump 7 is fixedly connected to the top of the exhaust gas washing box 3, one end of the water pump 7 is fixedly connected to a water inlet pipe 71, the other end of the water pump 7 is fixedly connected to a connecting water pipe 72, the bottom of the connecting water pipe 72 is fixedly connected to a shunt pipe 721, the outer surface of the shunt pipe 721 is fixedly connected to a nozzle 7211, the connecting water pipe 72 is connected through the exhaust gas washing box 3, under the action of the water pump 7, external water flows into the shunt pipe 721 through the water inlet pipe 71 and the connecting water pipe 72 in turn, and is finally sprayed out through the nozzle 7211 to wash the exhaust gas, so that the organic matter in the exhaust gas is dissolved in the water.

[0029] An exhaust pipe 32 is fixedly passed through the top of the exhaust gas washing box 3 , and an air pump 321 is fixedly connected to the outer surface of the exhaust pipe 32 . When the air pump 321 is started, the purified exhaust gas is discharged to the outside through the exhaust pipe 32 .

[0030] A drain pipe 31 is fixedly passed through one side of the exhaust gas washing box 3, and a valve 311 is fixedly connected to the outer surface of the drain pipe 31. When the valve 311 is opened, the sewage after the exhaust gas is purified can be discharged to the outside through the valve 311 for further treatment.

[0031] When in use, the exhaust gas is connected to the air inlet pipe 21, and the exhaust gas enters the exhaust gas adsorption box 2 through the air inlet pipe 21. The filter cotton body 53 adsorbs impurities in the exhaust gas. After the initial purification is completed, the exhaust gas enters the exhaust gas washing box 3 through the connecting air pipe 6 for secondary purification. The water pump 7 is started. Under the action of the water pump 7, the external water flows into the diverter pipe 721 through the water inlet pipe 71 and the connecting water pipe 72 in turn, and is finally sprayed out through the nozzle 7211 to wash the exhaust gas, so that the residual organic matter in the exhaust gas is dissolved in the water, completing the secondary purification. The air pump 321 is started, and the gas after the secondary purification is discharged to the outside through the exhaust pipe 32. The valve 311 is opened to facilitate the sewage after the exhaust gas is purified to be discharged to the outside through the valve 311 for further treatment. When the filter cotton body 53 needs to be replaced, pull the hook downward. 45, the spring 44 is in an extended state, connecting the hook 45 with the hook 46. At this time, the hook 45 and the hook 46 are fixed under the reaction of the spring 44 to prevent the hook 45 from loosening, and the electric push rod 41 is started. The electric push rod 41 moves upward to drive the connecting column 43 to move upward. The spring 44 has a sufficiently large elastic potential energy to prevent the spring 44 from being stretched when the connecting column 43 moves upward. Therefore, the connecting column 43 moves upward to drive the spring 44 and the hook 45 to move upward, thereby driving the box cover 47 to move upward. The box cover 47 moves upward to drive the connecting rod 48 and the filter cotton assembly 5 to move upward, and the filter cotton assembly 5 is taken out from the exhaust gas adsorption box 2. The locking bolt 56 is taken out, and the first fixing plate 51 is separated from the second fixing plate 55 to facilitate the removal of the filter cotton body 53 and the replacement of the filter cotton body 53.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas purification device for electrochemical synthesis of brominated pyridine, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to an exhaust gas adsorption box (2) and an exhaust gas washing box (3); a connecting air pipe (6) is fixedly passed through the exhaust gas adsorption box (2) and the exhaust gas washing box (3); and a telescopic component (4) is provided at the top of the base (1) for facilitating the removal of adsorption cotton; The telescopic assembly (4) comprises an electric push rod (41) fixedly connected to the top of the base (1), a top plate (42) fixedly connected to the top of the electric push rod (41), a connecting column (43) fixedly connected to the bottom of the top plate (42), a spring (44) fixedly connected to the bottom of the connecting column (43), a hook (45) fixedly connected to the bottom of the spring (44), a box cover (47) movably arranged at the top of the exhaust gas adsorption box (2), a hanging buckle (46) fixedly connected to the top of the box cover (47), and a connecting rod (48) fixedly connected to the bottom of the box cover (47), the hook (45) and the hanging buckle (46) are movably connected, and a filter cotton assembly (5) is arranged at the bottom of the connecting rod (48), and the filter cotton assembly (5) is arranged inside the exhaust gas adsorption box (2).

2. The exhaust gas purification device for electrochemical synthesis of brominated pyridine according to claim 1, characterized in that: The filter cotton assembly (5) comprises a first fixing plate (51) and a second fixing plate (55), a first slot (52) provided on the lower surface of the first fixing plate (51), a second slot (54) provided on the upper surface of the second fixing plate (55), a filter cotton body (53) arranged between the first slot (52) and the second slot (54), and a locking bolt (56) threadedly connected between the first fixing plate (51) and the second fixing plate (55), the filter cotton body (53) is engaged with the first slot (52) and the second slot (54), and the first fixing plate (51) is fixedly connected to the connecting rod (48).

3. The exhaust gas purification device for electrochemical synthesis of brominated pyridine according to claim 1, characterized in that: An air intake pipe (21) is fixedly passed through one side of the exhaust gas adsorption box (2), and a sealing gasket (22) is fixedly connected to the connection between the exhaust gas adsorption box (2) and the box cover (47).

4. The exhaust gas purification device for electrochemical synthesis of brominated pyridine according to claim 1, characterized in that: The top of the waste gas washing box (3) is fixedly connected to a water pump (7), one end of the water pump (7) is fixedly connected to a water inlet pipe (71), the other end of the water pump (7) is fixedly connected to a connecting water pipe (72), the bottom end of the connecting water pipe (72) is fixedly connected to a diverter pipe (721), the outer surface of the diverter pipe (721) is fixedly connected to a nozzle (7211), and the connecting water pipe (72) is connected to the waste gas washing box (3) through.

5. The exhaust gas purification device for electrochemical synthesis of brominated pyridine according to claim 4, characterized in that: An exhaust pipe (32) is fixedly passed through the top of the exhaust gas scrubbing box (3), and an air pump (321) is fixedly connected to the outer surface of the exhaust pipe (32).

6. The exhaust gas purification device for electrochemical synthesis of brominated pyridine according to claim 5, characterized in that: A drainage pipe (31) is fixedly passed through one side of the exhaust gas scrubbing box (3), and a valve (311) is fixedly connected to the outer surface of the drainage pipe (31).

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