Waste gas recovery device for CO production

Abstract

The utility model provides a waste gas recovery device for CO production, which comprises a bottom plate, an adsorption treatment tank, a liquid absorption tank and a post-treatment component are arranged on the bottom plate, the lower part of the adsorption treatment tank is fixedly connected with a first exhaust pipe, a first control valve is arranged on the first exhaust pipe, and a second control valve is arranged on the second exhaust pipe. And the other end of the first exhaust pipe extends into the liquid absorption tank, the liquid absorption tank comprises a second tank body, the top of the second tank body is fixedly connected with a top plate, and a flow dividing assembly is arranged at the bottom of the second tank body. According to the waste gas recovery device for CO production provided by the utility model, tail gas firstly passes through the adsorption treatment tank to adsorb solid pollutant particles and then enters the liquid absorption tank through the first discharge pipe, and the contact area between the tail gas and absorption liquid is increased through the shunting assembly and the stirring assembly, so that the treatment capacity of the absorption liquid on harmful components is enhanced; and finally, the waste gas enters the post-treatment assembly and is discharged, so that the treatment effect on harmful components is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas recovery technical field especially relates to a waste gas recovery device for CO production. BACKGROUND

[0002] In modern industrial production, carbon monoxide (CO) as an important chemical raw material or intermediate product is widely used in many fields, such as steel smelting, ammonia synthesis, methanol synthesis, carbonyl synthesis and other process. In these CO production processes, a large amount of waste gas is often produced. These waste gases not only contain a certain amount of unreacted CO, but also contain other impurity gases and solid particles.

[0003] The solid particles in the waste gas may block the pipeline, adsorb the pores of the adsorbent or damage the equipment components, and the presence of other impurity gases may also affect the recovery purity and process stability of CO.

[0004] Therefore, it is necessary to provide a waste gas recovery device for CO production to solve the above technical problems. SUMMARY

[0005] The utility model provides a waste gas recovery device for CO production, solves the problem that solid particles and other impurity gases in waste gas may affect the recycling of CO.

[0006] To solve the above technical problems, the utility model provides a waste gas recovery device for CO production, which comprises a bottom plate, an adsorption treatment tank, a liquid absorption tank and a post-treatment assembly arranged on the bottom plate, a first exhaust pipe fixedly connected to the lower part of the adsorption treatment tank, a first control valve arranged on the first exhaust pipe, the other end of the first exhaust pipe extending into the interior of the liquid absorption tank, the liquid absorption tank comprising a second tank body, a top plate fixedly connected to the top of the second tank body, a shunt assembly arranged on the bottom of the second tank body, the shunt assembly being fixedly connected with the first exhaust pipe, a stirring assembly arranged on the top plate, a second exhaust pipe arranged on the upper part of the liquid absorption tank, a second control valve arranged on the second exhaust pipe, and the other end of the second exhaust pipe extending into the interior of the post-treatment assembly.

[0007] Preferably, the adsorption treatment tank comprises a first tank body, a first gas inlet pipe arranged on the upper part of the first tank body, a tank body closing door arranged on the first tank body, and the first exhaust pipe being connected with the lower part of the first tank body.

[0008] Preferably, the shunt assembly comprises a foaming box and a ring-shaped bottom plate, the foaming box is provided with uniformly distributed gas discharge holes, the lower part of the foaming box is provided with a second air inlet pipe connected with the first air outlet pipe, the ring-shaped bottom plate is fixedly connected with the inner wall of the second tank body, the upper part of the foaming box is provided with a supporting column, the ring-shaped bottom plate is fixedly connected with a mounting bracket, the center of the supporting column and the mounting bracket is fixedly connected, the mounting bracket is fixedly connected with a plurality of sector plates, and the sector plates are provided with uniformly distributed shunt grooves.

[0009] Preferably, the stirring assembly comprises a driving motor, the output end of the driving motor is provided with a rotating shaft, the rotating shaft is rotatably connected with the top plate, the rotating shaft is provided with a fixing piece, and the fixing piece is fixedly connected with a stirring fan.

[0010] Preferably, the stirring fan comprises a frame, a plurality of turbulence plates are fixedly connected in the frame, and the turbulence plates are provided with uniformly distributed flow holes.

[0011] Preferably, the post-processing assembly comprises a processing chamber, the processing chamber is provided with an igniter, the upper part of the processing chamber is provided with an air exhaust fan and a third air outlet pipe, the second air outlet pipe is connected with the air exhaust fan, and the third air outlet pipe is in communication with the inside of the processing chamber.

[0012] Compared with the related art, the CO production waste gas recovery device has the following beneficial effects:

[0013] The CO production waste gas recovery device provided by the utility model has the advantages that the tail gas is first adsorbed by the adsorption treatment tank to remove solid pollutant particles, then enters the liquid absorption tank through the first air outlet pipe, the contact area of the tail gas and the absorption liquid is increased by the shunt assembly and the stirring assembly, the processing capacity of the absorption liquid for harmful components is improved, and finally the tail gas is discharged after being treated by the post-processing assembly, so that the processing effect of the harmful components is ensured. ACCURACY OF DRAWINGS

[0014] Figure 1 The structure diagram of a preferred embodiment of the CO production waste gas recovery device provided by the utility model is shown in the figure.

[0015] Figure 2 The structure diagram of the shunt assembly in the utility model is shown in the figure.

[0016] Figure 3 The structure diagram of the stirring assembly in the utility model is shown in the figure.

[0017] Figure 4 The structure diagram of the post-processing assembly in the utility model is shown in the figure.

[0018] The figure label: 1, bottom plate, 2, adsorption treatment tank, 21, first tank body, 22, first air inlet pipe, 23, tank body closing door, 3, first exhaust pipe, 4, first control valve, 5, liquid absorption tank, 51, second tank body, 52, top plate, 6, flow distribution assembly, 61, foaming box, 62, gas discharge hole, 63, second air inlet pipe, 64, annular bottom plate, 65, support column, 66, mounting bracket, 67, sector plate, 68, flow distribution groove, 7, stirring assembly, 71, driving motor, 72, rotating shaft, 73, fixing seat, 74, frame, 75, spoiler, 76, flow hole, 8, second exhaust pipe, 9, second control valve, 10, post-processing assembly, 101, processing chamber, 102, igniter, 103, air extraction fan, 104, third exhaust pipe. DETAILED DESCRIPTION

[0019] The utility model will be further explained below in connection with the drawings and embodiments.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 And Figure 4 Among them, Figure 1 It is a preferred embodiment structure diagram of a kind of CO production waste gas recovery device provided by the utility model;

[0021] Figure 2 It is the structure diagram of flow distribution assembly in the utility model;

[0022] Figure 3 It is the structure diagram of stirring assembly in the utility model;

[0023] Figure 4 It is the structure diagram of post-processing assembly in the utility model.

[0024] A kind of CO production waste gas recovery device includes: bottom plate 1, adsorption treatment tank 2, liquid absorption tank 5 and post-processing assembly 10 are provided on the bottom plate 1, the lower portion of the adsorption treatment tank 2 is fixedly connected with first exhaust pipe 3, first control valve 4 is provided on first exhaust pipe 3, the other end of first exhaust pipe 3 extends to the inside of liquid absorption tank 5, the liquid absorption tank 5 includes second tank body 51, the top of second tank body 51 is fixedly connected with top plate 52, the bottom of second tank body 51 is provided with flow distribution assembly 6, flow distribution assembly 6 is fixedly connected with first exhaust pipe 3, stirring assembly 7 is provided on the top plate 52, the upper portion of the liquid absorption tank 5 is provided with second exhaust pipe 8, second control valve 9 is provided on second exhaust pipe 8, the other end of second exhaust pipe 8 extends to the inside of post-processing assembly 10.

[0025] The tail gas generated in the CO production process is treated by the adsorption treatment tank 2 and the first exhaust pipe 3, enters the liquid absorption tank 5, the liquid absorption tank 5 is provided with an alkaline solution (such as ammonia water), the harmful residual components in the tail gas are absorbed, in the process of liquid absorption, the contact area of the gas and the absorption liquid is increased by the shunt assembly 6 and the stirring assembly 7, thereby the absorption effect is enhanced, the remaining gas enters the post-processing assembly 10 through the second exhaust pipe 8, and is finally discharged.

[0026] The adsorption treatment tank 2 comprises a first tank body 21, the upper portion of the first tank body 21 is provided with a first gas inlet pipe 22, the first tank body 21 is provided with a tank body sealing door 23, and the first exhaust pipe 3 is connected with the lower portion of the first tank body 21.

[0027] The first tank body 21 is provided with an adsorbent (such as activated carbon, activated alumina, etc.), which is used for adsorbing the solid pollutant particles mixed in the gas, and the tank body sealing door is used for replacing the adsorbent.

[0028] The shunt assembly 6 comprises a foaming box 61 and an annular bottom plate 64, the foaming box 61 is provided with uniformly distributed gas discharge holes 62, the lower portion of the foaming box 61 is provided with a second gas inlet pipe 63, the second gas inlet pipe 63 is connected with the first exhaust pipe 3, the annular bottom plate 64 is fixedly connected with the inner wall of the second tank body 51, the upper portion of the foaming box 61 is provided with a supporting column 65, the annular bottom plate 64 is fixedly connected with a mounting bracket 66, the supporting column 65 is fixedly connected with the center of the mounting bracket 66, the mounting bracket 66 is fixedly connected with a plurality of sector plates 67, and the sector plates 67 are provided with uniformly distributed shunt grooves 68.

[0029] The gas enters the hollow foaming box 61 through the first exhaust pipe 3 and the second gas inlet pipe 63 connected therewith, the top end of the foaming box 61 is closed, and a plurality of uniformly distributed gas discharge holes 62 are formed in the periphery, the gas is discharged from the gas discharge holes 62 to form bubbles after entering the foaming box 61, thereby the contact area with the absorption liquid is increased; the bubbles float upwards, further increase the contact area with the absorption liquid after passing through the sector plates 67 and the shunt grooves 68, thereby the treatment effect of the absorption liquid on the harmful components is enhanced.

[0030] The stirring assembly 7 comprises a driving motor 71, the output end of the driving motor 71 is provided with a rotating shaft 72, the rotating shaft 72 is rotationally connected with the top plate 52, the rotating shaft 72 is provided with a fixing piece 73, and the fixing piece 73 is fixedly connected with a stirring fan.

[0031] The driving motor 71 drives the stirring fan to continuously stir the absorption liquid in the second tank body 51.

[0032] The stirring fan comprises a frame 74, a plurality of groups of spoiler plates 75 are fixedly connected in the frame 74, and a plurality of flow holes 76 are uniformly arranged on the spoiler plates 75.

[0033] When the stirring fan stirs the absorption liquid, the spoiler plates 75 have an included angle with the horizontal plane, and the plurality of flow holes 76 are uniformly arranged on the surface, so that the absorption effect of the absorption liquid on the harmful components in the gas is enhanced.

[0034] The post-processing assembly 10 comprises a processing chamber 101, an igniter 102 is arranged in the processing chamber 101, an air exhaust fan 103 and a third exhaust pipe 104 are arranged at the upper portion of the processing chamber 101, the second exhaust pipe 8 is connected with the air exhaust fan 103, and the third exhaust pipe 104 is in communication with the inside of the processing chamber 101.

[0035] The residual gas enters the post-processing chamber 101, the igniter 102 is started, the residual tail gas is burned and treated, and the environment is prevented from being polluted; further, the post-processing assembly can be replaced by a catalytic processing device, and the tail gas is more fully recycled.

[0036] The working principle of the waste gas recovery device for CO production provided by the utility model is as follows:

[0037] The tail gas generated in the CO production process enters the liquid absorption tank 5 through the adsorption treatment tank 2 and the first exhaust pipe 3, the liquid absorption tank 5 is provided with an alkaline solution (such as ammonia water), harmful residual components in the tail gas are absorbed, in the process of liquid absorption, the contact area of the gas and the absorption liquid is increased through the shunt assembly 6 and the stirring assembly 7, so that the absorption effect is enhanced, the residual gas enters the post-processing assembly 10 through the second exhaust pipe 8, and is finally discharged.

[0038] Compared with the related art, the waste gas recovery device for CO production has the following beneficial effects:

[0039] The tail gas first passes through the adsorption treatment tank 2 to adsorb solid pollutant particles, then enters the liquid absorption tank 5 through the first exhaust pipe 3, the contact area of the tail gas and the absorption liquid is increased through the shunt assembly 6 and the stirring assembly 7, the processing capacity of the absorption liquid on the harmful components is enhanced, and finally the tail gas enters the post-processing assembly 10 and is discharged, so that the processing effect on the harmful components is ensured.

[0040] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and the drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A CO production waste gas recovery device, characterized in that: include: A bottom plate, on which an adsorption treatment tank, a liquid absorption tank and a post-treatment component are arranged, the lower part of the adsorption treatment tank is fixedly connected to a first exhaust pipe, the first exhaust pipe is provided with a first control valve, the other end of the first exhaust pipe extends to the interior of the liquid absorption tank, the liquid absorption tank includes a second tank body, the top of the second tank body is fixedly connected to a top plate, a diversion component is provided at the bottom of the second tank body, the diversion component is fixedly connected to the first exhaust pipe, a stirring component is provided on the top plate, a second exhaust pipe is provided at the upper part of the liquid absorption tank, a second control valve is provided on the second exhaust pipe, and the other end of the second exhaust pipe extends to the interior of the post-treatment component.

2. A CO production waste gas recovery device according to claim 1, characterized in that: The adsorption treatment tank includes a first tank body, a first air inlet pipe is provided on the upper portion of the first tank body, a tank body closing door is provided on the first tank body, and the first exhaust pipe is connected to the lower portion of the first tank body.

3. A CO production waste gas recovery device according to claim 2, characterized in that: The diversion assembly includes a foaming box and an annular bottom plate, the foaming box is provided with evenly distributed gas exhaust holes, the lower part of the foaming box is provided with a second air inlet pipe, the second air inlet pipe is connected to the first exhaust pipe, the annular bottom plate is fixedly connected to the inner wall of the second tank body, the upper part of the foaming box is provided with a support column, the annular bottom plate is fixedly connected to a mounting bracket, the support column is fixedly connected to the center of the mounting bracket, a plurality of fan-shaped plates are fixedly connected to the mounting bracket, and the fan-shaped plates are provided with evenly distributed diversion grooves.

4. A CO production waste gas recovery device according to claim 1, characterized in that: The stirring assembly includes a driving motor. The output end of the driving motor is provided with a rotating shaft. The rotating shaft is rotatably connected to the top plate. A fixing piece is provided on the rotating shaft. The fixing piece is fixedly connected to the stirring fan.

5. A CO production waste gas recovery device according to claim 4, characterized in that: The stirring fan comprises a frame, wherein a plurality of spoilers are fixedly connected in the frame, and the spoilers are provided with flow holes distributed evenly.

6. A CO production waste gas recovery device according to claim 1, characterized in that: The post-processing assembly includes a processing chamber, an igniter is provided in the processing chamber, an exhaust fan and a third exhaust pipe are provided at the upper part of the processing chamber, the second exhaust pipe is connected to the exhaust fan, and the third exhaust pipe is communicated with the interior of the processing chamber.

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