Natural gas heat exchange tail gas comprehensive utilization system in potassium permanganate production process

Abstract

The utility model relates to the technical field of potassium permanganate production, in particular to a natural gas heat exchange tail gas comprehensive utilization system in the potassium permanganate production process, which comprises a box body, a heat exchange mechanism is arranged at the top of the rear side of an inner cavity of the box body, the heat exchange mechanism comprises a first rectangular pipe, and the bottom of the first rectangular pipe is communicated with a vortex-shaped heat exchange pipe. According to the utility model, the gas feeding pipe, the gas inlet transverse pipe, the first rectangular pipe, the filtering and purifying mechanism, the external shell, the connecting shell, the sealing door, the exhaust valve, the locking communicating pipes and the first shell are matched for use, so that the corresponding locking communicating pipes can be opened through the external controller in the use process, and the tail gas is fed into the inner cavity of the first shell; the diatom ooze is adsorbed and filtered by a diatom ooze adsorption screen plate, then is injected into an inner cavity of the chemical reaction shell through an external shell and a connecting shell, is subjected to multiple cleaning by chemical materials in the chemical reaction shell, and finally is discharged to the outside through an exhaust valve.

Description

Technical Field

[0001] The utility model relates to the technical field of potassium permanganate production, in particular to a natural gas heat exchange tail gas comprehensive utilization system in the potassium permanganate production process. Background Art

[0002] Potassium permanganate, as a strong oxidant, is widely used in water treatment, chemical synthesis, and environmental governance. In the production process of potassium permanganate, a natural gas heat exchange exhaust gas comprehensive utilization system is often required.

[0003] After searching, the announcement number is CN20700588U, and the name is potassium permanganate oxidation by-product filtration and recovery system for chromatographic acetonitrile production, including a pull rod, a support plate, a scraper, a fixed sleeve, a connecting slider, a movable baffle, a handle, a ball nut pair, a screw, an ethanol liquid tank and a filter. Through research and analysis, it was found that although there are advantages of chemical filtration, there are still the following disadvantages to a certain extent.

[0004] For example, the potassium permanganate oxidation byproduct filtration and recovery system for chromatographic acetonitrile production mentioned above usually does not have the function of pre-heat exchange for potassium permanganate tail gas during use, resulting in the inability to recover waste heat during the treatment process. In addition, the post-recovery filtration treatment mechanism is usually relatively simple, resulting in poor tail gas recovery efficiency. In order to solve the above technical problems, we have designed a comprehensive utilization system for natural gas heat exchange tail gas in the potassium permanganate production process. Utility Model Content

[0005] The utility model aims to provide a natural gas heat exchange tail gas comprehensive utilization system in the potassium permanganate production process, which has the advantages of waste heat recovery and efficient tail gas purification, and solves the problem that the waste heat of the tail gas cannot be recovered before filtering and recovery.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a natural gas heat exchange exhaust gas comprehensive utilization system in the potassium permanganate production process, comprising a box body, a heat exchange mechanism is arranged on the top of the rear side of the inner cavity of the box body, the heat exchange mechanism comprises a first rectangular tube, the bottom of the first rectangular tube is connected to a vortex heat exchange tube, the side of the vortex heat exchange tube away from the first rectangular tube passes through the inner cavity of the box body and is connected to a second rectangular tube, the second rectangular tube passes through the outside of the box body, an injection mechanism is arranged on the front side of the top of the inner cavity of the box body, the injection mechanism comprises an air intake cross pipe, a filtering and purification mechanism is arranged at the bottom of the inner cavity of the box body, the filtering and purification mechanism comprises a first shell body, the left side of the box body is connected to an external shell body, a diatom mud adsorption mesh plate is penetrated on the left side of the external shell body, and the right side of the diatom mud adsorption mesh plate passes through the external shell body, passes through the box body and extends to the inner cavity of the first shell body.

[0007] Preferably, transverse partition plates are welded horizontally on both sides of the inner cavity of the box body. A locking and communicating pipe is arranged through the rear side of the top of the transverse partition plate, and one side of the locking and communicating pipe away from the transverse partition plate is communicated with the first shell.

[0008] Preferably, a connecting shell is communicated with the bottom of the external shell. One side of the connecting shell away from the external shell penetrates into the inner cavity of the box body and is communicated with a chemical reaction shell. An exhaust valve is communicated with the right side of the chemical reaction shell, and the right side of the exhaust valve penetrates to the outside of the box body.

[0009] Preferably, a delivery pipe is communicated with the right side of the intake cross pipe. One side of the delivery pipe away from the intake cross pipe penetrates into the inner cavity of the box body and is communicated with a jet plate.

[0010] Preferably, the heat exchange mechanism includes a vertical partition plate. One side of the vertical partition plate close to the inner wall of the box body is welded to the inner wall of the box body, and an axial flow fan is installed through the front side of the vertical partition plate.

[0011] Preferably, a sealing door is installed through the front side of the box body, and an observation mirror is installed through the front side of the sealing door.

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

[0013] By the combined use of the delivery pipe, the intake cross pipe, the first rectangular pipe, the filtering and purifying mechanism, the external shell, the connecting shell, the sealing door, the exhaust valve, the locking and communicating pipe and the first shell, the present utility model can, during use, open the corresponding locking and communicating pipe through an external controller, so as to send the tail gas into the inner cavity of the first shell, adsorb and filter it through the diatomite adsorption mesh plate, then inject it into the inner cavity of the chemical reaction shell through the external shell and the connecting shell, perform multiple cleaning on it through the internal chemical materials, and finally discharge it to the outside through the exhaust valve.

[0014] By the combined use of the diatomite adsorption mesh plate, the transverse partition plate, the vertical partition plate, the second rectangular pipe, the spiral heat exchange pipe, the axial flow fan, the jetting mechanism and the jet plate, the present utility model can, during use, inject it into the inner cavity of the delivery pipe through the intake cross pipe, and then evenly jet it out through the jet plate. During this process, the axial flow fan helps it perform heat exchange by extracting and blowing the tail gas to the surface of the spiral heat exchange pipe, so as to achieve a better heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional rear-view sectional schematic diagram of the partial structure of the present utility model;

[0017] Figure 3Schematic diagram of three-dimensional section of the partial structure of the utility model;

[0018] Figure 4 Schematic axonometric diagram of the partial structure of the utility model.

[0019] In the figure: 1, box body; 2, air supply pipe; 3, intake horizontal pipe; 4, first rectangular pipe; 5, filtering and purification mechanism; 6, external housing; 7, connecting shell; 8, sealing door; 9, exhaust valve; 10, locking and connecting pipe; 11, first housing; 12, chemical reaction shell; 13, diatom mud adsorption net plate; 14, horizontal partition; 15, vertical partition; 16, second rectangular pipe; 17, spiral heat exchange pipe; 18, axial flow fan; 19, jetting mechanism; 20, jetting plate; 21, heat exchange mechanism. Specific implementation mode

[0020] Please refer to Figures 1-4 , in the comprehensive utilization system of natural gas heat exchange tail gas during the production process of potassium permanganate, it includes a box body 1. At the top of the rear side of the inner cavity of the box body 1, a heat exchange mechanism 21 is arranged. The heat exchange mechanism 21 includes a first rectangular pipe 4. At the bottom of the first rectangular pipe 4, a spiral heat exchange pipe 17 is connected. The side of the spiral heat exchange pipe 17 away from the first rectangular pipe 4 penetrates through to the inner cavity of the box body 1 and is connected to a second rectangular pipe 16. The second rectangular pipe 16 penetrates through to the outside of the box body 1. At the front side of the top of the inner cavity of the box body 1, a jetting mechanism 19 is arranged. The jetting mechanism 19 includes an intake horizontal pipe 3. At the bottom of the inner cavity of the box body 1, a filtering and purification mechanism 5 is arranged. The filtering and purification mechanism 5 includes a first housing 11. The left side of the box body 1 is connected to an external housing 6. A diatom mud adsorption net plate 13 is arranged through the left side of the external housing 6. The right side of the diatom mud adsorption net plate 13 passes through the external housing 6 and penetrates through the box body 1 to extend into the inner cavity of the first housing 11.

[0021] Please refer to Figure 3 , on both sides of the inner cavity of the box body 1, horizontal partitions 14 are welded horizontally. At the rear side of the top of the horizontal partition 14, a locking and connecting pipe 10 is arranged through. The side of the locking and connecting pipe 10 away from the horizontal partition 14 is connected to the first housing 11.

[0022] Please refer to Figure 4 , the bottom of the external housing 6 is connected to a connecting shell 7. The side of the connecting shell 7 away from the external housing 6 penetrates through to the inner cavity of the box body 1 and is connected to a chemical reaction shell 12. The right side of the chemical reaction shell 12 is connected to an exhaust valve 9. The right side of the exhaust valve 9 penetrates through to the outside of the box body 1.

[0023] Please refer to Figure 2 , the right side of the intake horizontal pipe 3 is connected to an air supply pipe 2. The side of the air supply pipe 2 away from the intake horizontal pipe 3 penetrates through to the inner cavity of the box body 1 and is connected to a jetting plate 20. By arranging the jetting plate 20, the potassium permanganate tail gas can be evenly spread and sent in, improving the heat exchange contact area of its main body.

[0024] Please refer to Figure 3 , the heat exchange mechanism 21 includes a vertical partition 15. By setting the vertical partition 15, it is convenient to balance the support of the axial flow fan 18, thus achieving a better installation stability effect. One side of the vertical partition 15 close to the inner wall of the box body 1 is welded to the inner wall of the box body 1. The axial flow fan 18 is installed through the front side of the vertical partition 15. By setting the axial flow fan 18, the gas flow rate in the inner cavity of the box body 1 can be accelerated, thereby improving the heat exchange effect of its contact.

[0025] Please refer to Figure 3 , a sealing door 8 is installed through the front side of the box body 1, and an observation mirror is installed through the front side of the sealing door 8. By setting the observation mirror, the inner cavity of the box body 1 can be displayed for the user to observe.

[0026] During use, the user injects natural gas into the inner cavity of the first rectangular pipe 4, then makes it enter the inner cavity of the spiral heat exchange pipe 17, and then injects the tail gas into the inner cavity of the air supply pipe 2 through the intake cross pipe 3, and then evenly sprays it through the jet plate 20. During this process, the axial flow fan 18 helps it to conduct heat exchange by extracting and blowing the tail gas onto the surface of the spiral heat exchange pipe 17, thus achieving a better heat exchange effect. The natural gas after heat exchange is discharged through the second rectangular pipe 16, and then the user opens the corresponding locking connecting pipe 10 through an external controller, thereby sending the tail gas to the inner cavity of the first shell 11. It is adsorbed and filtered by the diatomite adsorption mesh plate 13, and then injected into the inner cavity of the chemical reaction shell 12 through the external shell 6 and the connecting shell 7. It is multi-cleaned by the internal chemical materials, and finally discharged to the outside through the exhaust valve 9.

[0027] In summary: In the comprehensive utilization system for natural gas heat exchange tail gas in the production process of potassium permanganate, by setting the air supply pipe 2, the intake cross pipe 3, the first rectangular pipe 4, the filtration and purification mechanism 5, the external shell 6, the connecting shell 7, the sealing door 8, the exhaust valve 9, the locking connecting pipe 10 and the first shell 11 in cooperation, the problem of being unable to recover the waste heat of the tail gas before filtration and recovery is solved.

Claims

1. A system for comprehensive utilization of natural gas heat exchange tail gas in a potassium permanganate production process, comprising a housing (1), characterized in that: A heat exchange mechanism (21) is arranged at the top of the rear side of the inner cavity of the box body (1), the heat exchange mechanism (21) comprising a first rectangular tube (4), the bottom of the first rectangular tube (4) being connected to a vortex heat exchange tube (17), the side of the vortex heat exchange tube (17) away from the first rectangular tube (4) passing through the inner cavity of the box body (1) and being connected to a second rectangular tube (16), the second rectangular tube (16) passing through the outside of the box body (1), and an injection mechanism (21) is arranged at the front side of the top of the inner cavity of the box body (1) 19), the jet mechanism (19) comprises an air intake cross pipe (3), a filtering and purifying mechanism (5) is arranged at the bottom of the inner cavity of the box body (1), the filtering and purifying mechanism (5) comprises a first shell (11), the left side of the box body (1) is connected to an external shell body (6), a diatom mud adsorption mesh plate (13) is arranged through the left side of the external shell body (6), and the right side of the diatom mud adsorption mesh plate (13) passes through the external shell body (6), penetrates the box body (1) and extends to the inner cavity of the first shell body (11).

2. The comprehensive utilization system of natural gas heat exchange tail gas in the potassium permanganate production process according to claim 1, characterized in that: Transverse partitions (14) are welded transversely on both sides of the inner cavity of the box body (1), a locking connecting pipe (10) is provided through the rear side of the top of the transverse partition (14), and the side of the locking connecting pipe (10) away from the transverse partition (14) is connected to the first shell (11).

3. The comprehensive utilization system of natural gas heat exchange tail gas in the potassium permanganate production process according to claim 1, characterized in that: The bottom of the external shell (6) is connected to a connecting shell (7); a side of the connecting shell (7) away from the external shell (6) penetrates into the inner cavity of the box body (1) and is connected to a chemical reaction shell (12); the right side of the chemical reaction shell (12) is connected to an exhaust valve (9); and the right side of the exhaust valve (9) penetrates to the outside of the box body (1).

4. The comprehensive utilization system of natural gas heat exchange tail gas in the potassium permanganate production process according to claim 1, characterized in that: The right side of the air intake cross pipe (3) is connected to an air supply pipe (2), and the side of the air supply pipe (2) away from the air intake cross pipe (3) penetrates into the inner cavity of the box body (1) and is connected to an air injection plate (20).

5. The comprehensive utilization system of natural gas heat exchange tail gas in the potassium permanganate production process according to claim 1, characterized in that: The heat exchange mechanism (21) comprises a vertical partition (15), wherein a side of the vertical partition (15) close to the inner wall of the box body (1) is welded to the inner wall of the box body (1), and an axial flow fan (18) is installed through the front side of the vertical partition (15).

6. The comprehensive utilization system of natural gas heat exchange tail gas in the potassium permanganate production process according to claim 1, characterized in that: A sealing door (8) is installed through the front side of the box body (1), and an observation mirror is installed through the front side of the sealing door (8).

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