Alkaline tail gas absorption device

Abstract

The utility model provides an alkaline tail gas absorption device. The alkaline tail gas absorption device comprises a reaction box; the box cover is detachably mounted at the top of the reaction box through fixing bolts; the treatment box is fixedly mounted on the outer wall of one side of the reaction box, a gas conveying pipe is fixedly mounted at the top of the treatment box, and the gas conveying pipe is fixedly communicated with the box cover; the partition plate is fixedly mounted in the treatment box; the gas detector is fixedly mounted on the inner wall of the top of the treatment box; the plurality of secondary treatment mechanisms are arranged in the treatment box and are used for carrying out secondary treatment on the alkaline tail gas. The alkaline tail gas absorption device provided by the utility model has the advantage of better secondary treatment effect of alkaline tail gas.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas absorption, in particular to an alkaline tail gas absorption device. Background Art

[0002] When producing thiadiazole, a certain amount of alkaline tail gas is usually produced. This is mainly because some alkaline substances, such as sodium hydroxide, ammonia water, etc., are needed in the production process of thiadiazole. These substances will evaporate into the tail gas during the reaction. In this case, an alkaline tail gas absorption device is usually used to treat the tail gas.

[0003] However, when treating alkaline tail gas, conventional general processes are often difficult to specifically treat alkaline tail gas produced in batches, and the tail gas treatment effect may be unsatisfactory. Some existing tail gas absorption devices may directly discharge incompletely treated alkaline tail gas to the outside, causing environmental pollution.

[0004] Therefore, it is necessary to provide a new alkaline tail gas absorption device to solve the above technical problems. Utility Model Content

[0005] In order to solve the technical problem of unsatisfactory tail gas treatment effect, the utility model provides an alkaline tail gas absorption device.

[0006] The alkaline tail gas absorption device provided by the utility model comprises: a reaction box; a box cover, the box cover is detachably mounted on the top of the reaction box by means of fixing bolts; a treatment box, the treatment box is fixedly mounted on an outer wall of one side of the reaction box, and a gas supply pipe is fixedly mounted on the top of the treatment box, and the gas supply pipe is fixedly connected to the box cover; a partition plate, the partition plate is fixedly mounted in the treatment box; a gas detector, the gas detector is fixedly mounted on the top inner wall of the treatment box; and a plurality of secondary treatment mechanisms, the plurality of secondary treatment mechanisms are all arranged in the treatment box for secondary treatment of the alkaline tail gas.

[0007] Preferably, a stirring rod is rotatably installed at the bottom of the box cover, a first cavity is opened in the stirring rod, a plurality of connecting rods are fixedly installed on the stirring rod, a second cavity is opened in each of the plurality of connecting rods, the plurality of second cavities are connected with the first cavity, a plurality of air holes are opened on the connecting rod, the plurality of air holes are connected with the second cavity.

[0008] Preferably, a first bevel gear is fixedly sleeved on the stirring rod, a motor is fixedly mounted on the top of the box cover, a second bevel gear is fixedly mounted on the output shaft of the motor, and the second bevel gear is meshed with the first bevel gear.

[0009] Preferably, a rotary joint is fixedly mounted on the top of the stirring rod, and an air inlet pipe is fixedly mounted on the top of the rotary joint.

[0010] Preferably, a first exhaust pipe and a second exhaust pipe are fixedly installed at the bottom of the partition plate, the first exhaust pipe is fixedly connected to the processing box, a first exhaust valve is arranged on the first exhaust pipe, and a second exhaust valve is arranged on the second exhaust pipe.

[0011] Preferably, the secondary processing mechanism includes a sealing frame, two card slots and an activated alumina adsorption plate, the sealing frame is fixedly mounted on the inner wall of the processing box, the two card slots are respectively opened on the inner walls on both sides of the processing box, the activated alumina adsorption plate is slidably mounted in the two card slots, and the sealing frame and the activated alumina adsorption plate are arranged correspondingly.

[0012] Preferably, a drain pipe is fixedly installed at the bottom of the reaction box, a drain valve is provided on the drain pipe, and a liquid inlet pipe is provided on the box cover.

[0013] Compared with the related art, the alkaline tail gas absorption device provided by the utility model has the following beneficial effects:

[0014] The utility model provides an alkaline tail gas absorption device:

[0015] 1. Detect the gas through a gas detector to prevent a part of the alkaline tail gas from remaining in the gas. The detection result is more intuitive. The alkaline tail gas is transmitted to the second cavity through the first cavity and finally discharged through the pores, which produces a certain aeration effect, thereby making the reaction effect of the gas and the reaction liquid better;

[0016] 2. The output shaft of the motor drives the second bevel gear to start rotating, thereby driving the first bevel gear to drive the stirring rod and the connecting rod to start rotating, so that the alkaline tail gas and the reaction liquid are mixed more evenly, and the reaction efficiency of the tail gas is improved. The intake pipe and the stirring rod are connected by a rotary joint, so that the intake pipe will not be affected by the rotation of the stirring rod when the intake is in progress. The pure gas is directly discharged to the outside of the treatment box through the first exhaust valve, and the gas transmission is relatively simple;

[0017] 3. The alkaline gas is adsorbed by the activated alumina adsorption plate in the secondary treatment mechanism, thereby performing secondary purification on it. The gas is purer when discharged. The activated alumina adsorption plate is pulled out of the card slot to be disassembled and replaced. The replacement method is relatively simple. The liquid in the reaction box is discharged through the drain valve, and then the reaction liquid is injected from the liquid inlet pipe to facilitate the next reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A schematic diagram of a front cross-sectional structure of a preferred embodiment of the alkaline tail gas absorption device provided by the utility model;

[0019] Figure 2 A schematic diagram of the main structure of a preferred embodiment of the alkaline tail gas absorption device provided by the utility model;

[0020] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in FIG.

[0021] Figure 4 for Figure 1 An enlarged schematic diagram of the structure of part B shown in FIG.

[0022] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part C shown in FIG.

[0023] Numbers in the figure: 1. reaction box; 2. box cover; 3. treatment box; 4. partition plate; 5. gas detector; 6. stirring rod; 7. first cavity; 8. connecting rod; 9. second cavity; 10. air hole; 11. first bevel gear; 12. motor; 13. second bevel gear; 14. rotary joint; 15. air inlet pipe; 16. first exhaust valve; 17. second exhaust valve; 18. sealing frame; 19. slot; 20. activated alumina adsorption plate; 21. liquid inlet pipe; 22. drain valve. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1-Figure 5 ,in, Figure 1 A schematic diagram of a front cross-sectional structure of a preferred embodiment of the alkaline tail gas absorption device provided by the utility model; Figure 2 A schematic diagram of the main structure of a preferred embodiment of the alkaline tail gas absorption device provided by the utility model; Figure 3 for Figure 1 An enlarged structural diagram of part A shown in FIG. Figure 4 for Figure 1 An enlarged schematic diagram of the structure of part B shown in FIG. Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part C shown in FIG.

[0026] The alkaline tail gas absorption device includes: a reaction box 1; a box cover 2, the box cover 2 is detachably mounted on the top of the reaction box 1 with fixing bolts; a treatment box 3, the treatment box 3 is fixedly mounted on the outer wall of one side of the reaction box 1, and a gas pipe is fixedly mounted on the top of the treatment box 3, and the gas pipe is fixedly connected to the box cover 2; a partition plate 4, the partition plate 4 is fixedly mounted in the treatment box 3; a gas detector 5, the gas detector 5 is fixedly mounted on the top inner wall of the treatment box 3; a plurality of secondary treatment mechanisms, the plurality of secondary treatment mechanisms are all arranged in the treatment box 3 for secondary treatment of the alkaline tail gas, the gas is detected by the gas detector 5 to prevent a part of the alkaline tail gas from remaining in the gas, and the detection result is more intuitive.

[0027] A stirring rod 6 is rotatably mounted at the bottom of the box cover 2, a first cavity 7 is defined in the stirring rod 6, a plurality of connecting rods 8 are fixedly mounted on the stirring rod 6, a second cavity 9 is defined in each of the plurality of connecting rods 8, the plurality of second cavities 9 are communicated with the first cavity 7, a plurality of air holes 10 are defined on the connecting rod 8, the plurality of air holes 10 are communicated with the second cavity 9, the alkaline tail gas is transmitted to the second cavity 9 through the first cavity 7, and finally discharged through the air holes 10, thereby producing a certain aeration effect, thereby making the reaction effect of the gas and the reaction liquid better.

[0028] A first bevel gear 11 is fixedly sleeved on the stirring rod 6, a motor 12 is fixedly installed on the top of the box cover 2, and a second bevel gear 13 is fixedly installed on the output shaft of the motor 12. The second bevel gear 13 is meshed with the first bevel gear 11, and the second bevel gear 13 is driven by the output shaft of the motor 12 to start rotating, thereby driving the first bevel gear 11 to drive the stirring rod 6 and the connecting rod 8 to start rotating, so that the alkaline tail gas and the reaction liquid are mixed more evenly, thereby improving the reaction efficiency of the tail gas.

[0029] A rotary joint 14 is fixedly installed on the top of the stirring rod 6, and an air intake pipe 15 is fixedly installed on the top of the rotary joint 14. The air intake pipe 15 and the stirring rod 6 are connected via the rotary joint 14, so that the air intake pipe 15 will not be affected by the rotation of the stirring rod 6 when taking in air.

[0030] A first exhaust pipe and a second exhaust pipe are fixedly installed at the bottom of the partition plate 4. The first exhaust pipe is fixedly connected to the processing box 3. A first exhaust valve 16 is provided on the first exhaust pipe, and a second exhaust valve 17 is provided on the second exhaust pipe. Pure gas is directly discharged to the outside of the processing box 3 through the first exhaust valve 16, and gas transmission is relatively simple.

[0031] The secondary treatment mechanism includes a sealing frame 18, two card slots 19 and an activated alumina adsorption plate 20. The sealing frame 18 is fixedly installed on the inner wall of the treatment box 3. The two card slots 19 are respectively opened on the inner walls on both sides of the treatment box 3. The activated alumina adsorption plate 20 is slidably installed in the two card slots 19, and the sealing frame 18 and the activated alumina adsorption plate 20 are correspondingly arranged. The activated alumina adsorption plate 20 in the secondary treatment mechanism adsorbs the alkaline gas, thereby performing secondary purification on it. The gas is purer when it is discharged. The activated alumina adsorption plate 20 is pulled out of the card slot 19 to be disassembled and replaced, and the replacement method is relatively simple.

[0032] A drain pipe is fixedly installed at the bottom of the reaction box 1, and a drain valve 22 is arranged on the drain pipe. The box cover 2 is provided with a liquid inlet pipe 21. The liquid in the reaction box 1 is discharged through the drain valve 22, and then the reaction liquid is injected from the liquid inlet pipe 21 to facilitate the next reaction.

[0033] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0034] The working principle of the alkaline tail gas absorption device provided by the utility model is as follows:

[0035] This solution also has an electric control cabinet, which is installed on the equipment. When in use, each electrical device can be started and operated through the electric control cabinet. The power connection method of each electrical device is an existing mature technology, which is a well-known technology for people in this field and will not be described in detail here.

[0036] When in use, the alkaline tail gas generated during the production of thiadiazole is first introduced into the air intake pipe 15, and the alkaline tail gas is transmitted to the second cavity 9 through the first cavity 7, and finally discharged through the air hole 10, which produces a certain aeration effect, thereby making the reaction effect of the gas and the reaction liquid better. Then, the motor 12 is started during ventilation, and the second bevel gear 13 is driven to rotate by the output shaft of the motor 12, thereby driving the first bevel gear 11 to drive the stirring rod 6 and the connecting rod 8 to start rotating, so that the alkaline tail gas and the reaction liquid are mixed more evenly, and the reaction efficiency of the tail gas is improved. During stirring, the air intake pipe 15 and the stirring rod 6 are connected by the rotary joint 14, so that the air intake pipe 15 will not be affected by the rotation of the stirring rod 6 during air intake;

[0037] The gas after the reaction is completed is transmitted to the processing box 3 through the gas transmission pipe. At this time, the gas is detected by the gas detector 5 to prevent some alkaline tail gas from remaining in the gas. During the detection, if the gas is relatively pure, the pure gas is directly discharged to the outside of the processing box 3 through the first exhaust valve 16, and the gas transmission is relatively simple. If the gas detector 5 detects that some alkaline gas remains when detecting the gas, the second exhaust valve 17 is started at this time, and the gas is discharged through the second exhaust valve 17. After that, the alkaline gas is adsorbed by the activated alumina adsorption plate 20, so as to perform secondary purification on it, and the gas is purer when it is discharged. After the first time, the box door of the processing box 3 is opened, and the activated alumina adsorption plate 20 is pulled out of the card slot 19, so that it can be disassembled and replaced, and the replacement method is relatively simple;

[0038] When the gas detector 5 detects alkaline gas, it proves that the reaction between the reaction liquid and the alkaline tail gas is complete. Then, the drain valve 22 is opened to discharge the liquid in the reaction box 1, and then the reaction liquid is injected from the liquid inlet pipe 21 to facilitate the next reaction.

[0039] Compared with the related art, the alkaline tail gas absorption device provided by the utility model has the following beneficial effects:

[0040] The utility model provides an alkaline tail gas absorption device, which detects gas through a gas detector 5 to prevent a part of alkaline tail gas from remaining in the gas, and the detection result is relatively intuitive. The alkaline tail gas is transmitted to the second cavity 9 through the first cavity 7 and finally discharged through the air hole 10, which produces a certain aeration effect, thereby making the reaction effect of the gas and the reaction liquid better. The second bevel gear 13 is driven to rotate by the output shaft of the motor 12, thereby driving the first bevel gear 11 to drive the stirring rod 6 and the connecting rod 8 to start rotating, so that the alkaline tail gas and the reaction liquid are mixed more evenly, and the reaction efficiency of the tail gas is improved. The head 14 connects the air inlet pipe 15 and the stirring rod 6, so that the air inlet pipe 15 will not be affected by the rotation of the stirring rod 6 when taking in air. The pure gas is directly discharged to the outside of the processing box 3 through the first exhaust valve 16, and the gas transmission is relatively simple. The alkaline gas is adsorbed by the activated alumina adsorption plate 20 in the secondary processing mechanism, so as to perform secondary purification on it. The gas is purer when it is discharged. The activated alumina adsorption plate 20 is pulled out of the slot 19 to be disassembled and replaced. The replacement method is relatively simple. The liquid in the reaction box 1 is discharged through the drain valve 22, and then the reaction liquid is injected from the inlet pipe 21 to facilitate the next reaction.

[0041] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. However, on the premise that technical personnel in this field understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An alkaline tail gas absorption device, characterized in that: include: Reaction box; A box cover, which is detachably mounted on the top of the reaction box using fixing bolts; A processing box, wherein the processing box is fixedly mounted on an outer wall of one side of the reaction box, and a gas pipe is fixedly mounted on the top of the processing box, and the gas pipe is fixedly connected to the box cover; A partition plate, the partition plate is fixedly installed in the processing box; A gas detector, the gas detector is fixedly mounted on the top inner wall of the processing box; A plurality of secondary treatment mechanisms are provided in the treatment box for performing secondary treatment on the alkaline tail gas.

2. The alkaline tail gas absorption device according to claim 1, characterized in that: A stirring rod is rotatably installed at the bottom of the box cover, a first cavity is defined in the stirring rod, a plurality of connecting rods are fixedly installed on the stirring rod, a second cavity is defined in each of the connecting rods, the second cavities are communicated with the first cavity, a plurality of air holes are defined on the connecting rod, the air holes are communicated with the second cavity.

3. The alkaline tail gas absorption device according to claim 2, characterized in that: A first bevel gear is fixedly sleeved on the stirring rod, a motor is fixedly mounted on the top of the box cover, a second bevel gear is fixedly mounted on the output shaft of the motor, and the second bevel gear is meshed with the first bevel gear.

4. The alkaline tail gas absorption device according to claim 2, characterized in that: A rotating joint is fixedly installed on the top of the stirring rod, and an air inlet pipe is fixedly installed on the top of the rotating joint.

5. The alkaline tail gas absorption device according to claim 1, characterized in that: A first exhaust pipe and a second exhaust pipe are fixedly installed at the bottom of the partition plate. The first exhaust pipe is fixedly connected to the processing box. A first exhaust valve is arranged on the first exhaust pipe, and a second exhaust valve is arranged on the second exhaust pipe.

6. The alkaline tail gas absorption device according to claim 1, characterized in that: The secondary processing mechanism includes a sealing frame, two card slots and an activated alumina adsorption plate. The sealing frame is fixedly installed on the inner wall of the processing box. The two card slots are respectively opened on the inner walls on both sides of the processing box. The activated alumina adsorption plate is slidably installed in the two card slots, and the sealing frame and the activated alumina adsorption plate are arranged correspondingly.

7. The alkaline tail gas absorption device according to claim 1, characterized in that: A liquid discharge pipe is fixedly installed at the bottom of the reaction box, a liquid discharge valve is arranged on the liquid discharge pipe, and a liquid inlet pipe is arranged on the box cover.

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