Movable waste gas wet oxidation device

Abstract

The utility model relates to the technical field of waste gas wet oxidation, and discloses a movable waste gas wet oxidation device which comprises a base and a movable wheel assembly arranged at the bottom of the base, a moisture oxidation system and a purified gas discharge system are arranged at the top of the base; the moisture oxidation system comprises a venturi circulating device and a first tower circulating device arranged at the output end of the venturi circulating device; and the purified gas discharging system comprises a second tower circulating device communicated with the first tower circulating device and an induced draft fan arranged at the output end of the second tower circulating device. Through the arrangement of the base with the moving wheel assembly, the wet gas oxidation system and the purified gas exhaust system, the whole flexibility is high, the device can be easily deployed to different places, is suitable for temporary or mobile working places, can be quickly transported to places where waste gas needs to be treated, and immediately starts to run, so that the waste gas treatment efficiency is improved. And emergency environmental pollution events can be dealt with.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas wet oxidation, in particular to a mobile waste gas wet oxidation device. Background Art

[0002] The exhaust gas wet oxidation device is an environmental protection device used to treat exhaust gas containing organic pollutants. The device purifies the exhaust gas by mixing the exhaust gas with water or other liquids to decompose the organic matter through oxidation-reduction reaction.

[0003] In a Chinese patent with publication number CN203458978U, a wet multiphase catalytic oxidation purification device for waste gas generated in an industrial production process is disclosed, including a shell, one end of the shell is provided with an inlet, the other end is provided with an outlet, three lower baffles are provided between the inlet and the outlet in the shell, an upper baffle is provided between each of the two lower baffles, the upper baffle is fixedly connected to the upper inner wall of the shell, the lower baffle is fixedly connected to the lower inner wall of the shell, so as to form a circuitous channel inside the shell, a packing layer is provided in the middle of the shell, the packing layer is located between the lower end of the upper baffle and the upper end of the lower baffle, a spray pipe is provided above the packing layer, and a feeding device is connected to the shell above the three lower baffles, which are: a catalyst feeding device, an oxidant feeding device and a detergent feeding device from the inlet to the outlet. The utility model has a simple structure, a fast reaction speed, a good treatment effect, a short waste gas residence time and a low operating cost.

[0004] However, the inventors have found that the current waste gas wet oxidation device is too large to be suitable for temporary or mobile workplaces, and cannot handle the exhaust gas generated by emergencies in a timely manner. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a mobile exhaust gas wet oxidation device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mobile exhaust gas wet oxidation device comprises a base and a moving wheel assembly installed at the bottom of the base;

[0008] A wet air oxidation system and a clean air exhaust system are provided on the top of the base;

[0009] The wet gas oxidation system comprises a venturi circulation device, and a first tower circulation device arranged at the output end of the venturi circulation device;

[0010] The clean air discharge system comprises a second tower circulation device connected to the first tower circulation device and an induced draft fan arranged at the output end of the second tower circulation device.

[0011] Preferably, the venturi circulation device comprises a venturi circulation tank, an internal spray venturi connected to the venturi circulation tank, and a first pump body connected to the output end of the venturi circulation tank and to the input end of the internal spray venturi.

[0012] Preferably, the first tower circulation device includes a first packed tower connected to the output end of the venturi circulation tank, a second packed tower connected to the top output end of the first packed tower, a first circulation tank connected to the bottom of the first packed tower and the second packed tower, and a second pump body connected to the output end of the first circulation tank, and the output end of the second pump body is connected to the venturi circulation tank, the first packed tower and the second packed tower through a pipeline.

[0013] Preferably, the wet gas oxidation system further comprises an accumulator, and the accumulator is connected to a pipeline connecting the second pump body with the venturi circulation tank, the first packing tower and the second packing tower.

[0014] Preferably, the second tower circulation device comprises a third packed tower connected to the second packed tower, a second circulation tank arranged at the bottom of the third packed tower, and a third pump body whose output end is connected to the third packed tower and whose input end is connected to the circulation tank.

[0015] Preferably, the output end of the third packed tower is connected to the induced draft fan through a demister.

[0016] Preferably, the first pump body is a diaphragm pump, and the second pump body and the third pump body are barrel pumps.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model has a base with a movable wheel assembly, a wet oxidation system and a clean air exhaust system, and has strong overall flexibility. It can be easily deployed to different locations and is suitable for temporary or mobile workplaces. It can be quickly transported to locations where emergencies need to be handled or where temporary devices generate exhaust gas, and can start operation immediately, which helps to deal with sudden environmental pollution incidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a mobile exhaust gas wet oxidation device proposed by the utility model;

[0020] Figure 2 This is a side view of a mobile exhaust gas wet oxidation device proposed by the utility model;

[0021] Figure 3 This is a top view of a mobile exhaust gas wet oxidation device proposed by the utility model;

[0022] Figure 4 The present invention provides a schematic block diagram of the composition of a mobile exhaust gas wet oxidation device.

[0023] In the figure: 1. base; 2. moving wheel assembly; 3. first tower circulation device; 4. second tower circulation device; 5. induced draft fan; 6. venturi circulation tank; 7. internal spray venturi; 8. first pump body; 9. first packing tower; 10. second packing tower; 11. first circulation tank; 12. second pump body; 13. accumulator; 14. third packing tower; 15. second circulation tank; 16. third pump body; 17. demister. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 4 , a mobile exhaust gas wet oxidation device, comprising a base 1 and a moving wheel assembly 2 installed at the bottom of the base 1;

[0026] A wet air oxidation system and a clean air exhaust system are arranged on the top of the base 1;

[0027] The wet gas oxidation system comprises a venturi circulation device and a first tower circulation device 3 arranged at the output end of the venturi circulation device, the venturi circulation device is installed at the left rear of the top of the base 1, and the first tower circulation device 3 is installed at the right rear of the top of the base 1;

[0028] The clean air discharge system includes a second tower circulation device 4 connected to the first tower circulation device 3 and an induced draft fan 5 arranged at the output end of the second tower circulation device 4. The induced draft fan 5 is arranged at the left front of the top of the base 1, and the second tower circulation device 4 is arranged at the right front of the top of the base 1.

[0029] When the device is in use, the waste gas and the oxidant (such as sodium hypochlorite solution) are input into the venturi circulation device for circulation to mix the gas and liquid. In this process, the sodium hypochlorite dissociates in the water to generate hypochlorous acid and chloride ions. The hypochlorous acid oxidizes the organic pollutants and certain inorganic pollutants in the waste gas and converts them into harmless or less harmful substances. At the same time, the gas discharged from the venturi circulation device is circulated again through the first tower circulation device 3 and the second tower circulation device 4. After the treatment, it is discharged through the induced draft fan 5. Compared with the prior art, the overall structure of the device is compact and flexible. It can be easily deployed to different locations and is suitable for temporary or mobile workplaces. It can be quickly transported to the location where the waste gas needs to be treated and start operation immediately, which is helpful to deal with sudden environmental pollution events. Moreover, the waste gas is circulated three times throughout the process, and the waste gas treatment effect is good.

[0030] In this embodiment, the venturi circulation device includes a venturi circulation tank 6, an internal spray venturi 7 connected to the venturi circulation tank 6, and a first pump body 8 connected to the output end of the venturi circulation tank 6 and the input end of the internal spray venturi 7. The sodium hypochlorite solution is input into the venturi circulation tank 6, and the solution is transported into the internal spray venturi 7 through the first pump body 8. At the same time, the waste gas is input into the internal spray venturi 7. The mixed gas and liquid (gas and liquid move in the same direction) re-enter the venturi circulation tank 6, and this reciprocating process is completed to complete the first step of the circulation process.

[0031] In this embodiment, the first tower circulation device 3 includes a first packed tower 9 connected to the output end of the venturi circulation tank 6, a second packed tower 10 connected to the output end of the top of the first packed tower 9, a first circulation tank 11 connected to the bottom of the first packed tower 9 and the second packed tower 10, and a second pump body 12 connected to the output end of the first circulation tank 11. The output end of the second pump body 12 is connected to the venturi circulation tank 6, the first packed tower 9 and the second packed tower 10 through a pipeline to input the sodium hypochlorite solution into the first circulation tank 11, and the venturi circulation device discharges the gas into the first packed tower 9 through the bottom of the first packed tower 9, and the gas enters the second packed tower 10 through the top of the first packed tower 9. In this process, the second pump body 12 can respectively send the sodium hypochlorite solution into the first packed tower 9 and the second packed tower 10. 9 and the top of the second packed tower 10, spray the gas, after spraying, the solution re-enters the first circulation tank 11, and the gas is subjected to a second circulation treatment in this reciprocating manner. The use of a packed tower can increase the contact area between the gas and the liquid, and in this process, the concentration of sodium hypochlorite added to the first circulation tank 11 is greater than the concentration of sodium hypochlorite added to the venturi circulation tank 7. When used specifically, a portion of the sodium hypochlorite in the first circulation tank 11 can be flowed to the venturi circulation tank 7, so that during the first circulation treatment, the waste gas is consumed at the minimum amount to achieve the maximum treatment efficiency (for example, 1% concentration of sodium hypochlorite treats 80% of the waste gas during the first circulation treatment, and 5% concentration of sodium hypochlorite in the first circulation tank 11 treats more than 90% of the waste gas during the second circulation treatment).

[0032] In this embodiment, the wet oxidation system also includes an accumulator 13, which is connected to a pipeline connecting the second pump body 12 and the venturi circulation tank 6, the first packing tower 9 and the second packing tower 10. The accumulator 13 is used to balance the pressure of the wet oxidation system. The accumulator 13 is used to stabilize the output flow and pressure of the diaphragm pump.

[0033] In this embodiment, the second tower circulation device 4 includes a third packed tower 14 connected to the second packed tower 10, a second circulation tank 15 arranged at the bottom of the third packed tower 14, and a third pump body 16 whose output end is connected to the third packed tower 14 and whose input end is connected to the circulation tank. The gas discharged from the second packed tower 10 enters the third packed tower 14. At this time, sodium hydroxide solution is still added to the second circulation tank 15, and the sodium hydroxide solution in the second circulation tank 15 is input to the top of the third packed tower 14 through the third pump body 16 to spray the gas. The liquid after spraying flows back to the second circulation tank 15, and the cycle is completed to complete the third treatment of the gas. This treatment is to treat the acidic substances (such as sulfur dioxide) in the gas so that the gas can be discharged normally.

[0034] In this embodiment, the output end of the third packed tower 14 is connected to the induced draft fan 5 through a demister 17. The demister 17 is used to remove droplets or mist carried in the gas discharged from the third packed tower 14 to purify the gas flow and avoid direct discharge of gas carrying droplets without treatment, which may cause environmental problems. After treatment, the gas is discharged through the induced draft fan 5, and the droplets removed by the demister 17 flow back into the second circulation tank 15.

[0035] In this embodiment, the first pump body 8 is a diaphragm pump, and the second pump body 12 and the third pump body 16 are barrel pumps. Barrel pumps are usually portable and can be easily moved to different barreled containers for operation. In this embodiment, it is convenient to use a barreled container added with sodium hypochlorite solution in conjunction with a barrel pump.

[0036] In this embodiment, the first packed tower, the second packed tower, the third packed tower and the demister are designed in a matrix array and are compactly designed together.

[0037] It should be noted that the connectivity between the various components in the device is achieved through pipelines, and valves can be installed on each pipeline as needed.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mobile exhaust gas wet oxidation device, characterized in that: It includes a base and a moving wheel assembly installed at the bottom of the base; A wet air oxidation system and a clean air exhaust system are provided on the top of the base; The wet gas oxidation system comprises a venturi circulation device, and a first tower circulation device arranged at the output end of the venturi circulation device; The clean air discharge system comprises a second tower circulation device connected to the first tower circulation device and an induced draft fan arranged at the output end of the second tower circulation device.

2. A mobile exhaust gas wet oxidation device according to claim 1, characterized in that: The venturi circulation device comprises a venturi circulation tank, an internal spray venturi connected to the venturi circulation tank, and a first pump body connected to the output end of the venturi circulation tank and to the input end of the internal spray venturi.

3. A mobile exhaust gas wet oxidation device according to claim 2, characterized in that: The first tower circulation device includes a first packed tower connected to the output end of the venturi circulation tank, a second packed tower connected to the top output end of the first packed tower, a first circulation tank connected to the bottom of the first packed tower and the second packed tower, and a second pump body connected to the output end of the first circulation tank, and the output end of the second pump body is connected to the venturi circulation tank, the first packed tower and the second packed tower through a pipeline.

4. A mobile exhaust gas wet oxidation device according to claim 3, characterized in that: The wet gas oxidation system further includes an accumulator, which is connected to a pipeline connecting the second pump body and the venturi circulation tank, the first packing tower and the second packing tower.

5. A mobile exhaust gas wet oxidation device according to claim 4, characterized in that: The second tower circulation device includes a third packed tower connected to the second packed tower, a second circulation tank arranged at the bottom of the third packed tower, and a third pump body whose output end is connected to the third packed tower and whose input end is connected to the circulation tank.

6. A mobile exhaust gas wet oxidation device according to claim 5, characterized in that: The output end of the third packed tower is connected to the induced draft fan through a demister.

7. A mobile exhaust gas wet oxidation device according to claim 5, characterized in that: The first pump body is a diaphragm pump, and the second pump body and the third pump body are barrel pumps.

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