Catalytic oxidation device for VOCs waste gas treatment

Abstract

The utility model discloses a catalytic oxidation device for VOCs waste gas treatment, which comprises an input pipe, an output pipe and catalytic oxidation regulation and control components, the input pipe is mounted at the top end of a catalytic oxidation kettle, the output pipe is mounted at the bottom of the catalytic oxidation kettle, and a plurality of catalytic oxidation regulation and control components are mounted on the catalytic oxidation kettle. The filter assembly is installed in the catalytic oxidation kettle, the rotating mechanism is installed on the filter assembly, the filter assembly can rotate up and down in the catalytic oxidation kettle through the rotating mechanism, and the VOCs waste gas cannot leak. According to the catalytic oxidation device for VOCs waste gas treatment, an upper filtering assembly rotates to push a middle rod, the middle rod pushes a lower filtering assembly to rotate, the rotating direction of the filtering assemblies is anticlockwise, the filtering assemblies scrape foreign matters adsorbed on the surfaces of the filtering assemblies in the rotating process, and the foreign matters are adsorbed on the surfaces of the filtering assemblies; normal adsorption of the filtering assembly is prevented from being blocked by adsorbed foreign matters, so that the service life of the filtering assembly is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a catalytic oxidation device for treating VOCs waste gas. Background Art

[0002] VOCs are a type of volatile organic compound and one of the main atmospheric pollutants, with significant impacts on the environment and human health. The main sources of VOCs include coal, oil, natural gas and related industrial activities. CO catalytic oxidation technology can be used to treat VOCs waste gas, using catalysts to promote the oxidation reaction between VOCs and oxygen, thereby converting VOCs into harmless carbon dioxide and water.

[0003] For example, in an exhaust gas catalytic oxidation reactor with publication number CN108686500A, a filter unit, a flow stabilization unit, a catalytic oxidation unit and a control box are sequentially arranged in the reaction box from left to right.

[0004] The above-mentioned catalytic oxidation reactor filters particles in the exhaust gas through a filter unit. Since the filter unit is fixed inside the catalytic oxidation reactor, a large number of particles are adsorbed on the surface of the filter unit. In order not to affect the normal filtration of the catalytic oxidation reactor, the filter unit needs to be replaced and cleaned regularly, and the purification effect is relatively poor. Utility Model Content

[0005] The purpose of the present utility model is to provide a catalytic oxidation device for treating VOCs waste gas, so as to solve the problem raised in the above background technology that a large number of particles are adsorbed on the surface of the filter unit on the current market. In order not to affect the normal filtration of the catalytic oxidation reactor, the filter unit needs to be replaced and cleaned regularly, resulting in a relatively poor purification effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a catalytic oxidation device for treating VOCs waste gas, comprising an input pipe, an output pipe and a catalytic oxidation control component, an input pipe is installed at the top of the catalytic oxidation kettle, an output pipe is installed at the bottom of the catalytic oxidation kettle, a plurality of catalytic oxidation control components are installed on the catalytic oxidation kettle, a filter component is installed inside the catalytic oxidation kettle, and a rotating mechanism is installed on the filter component, through which the filter component can be rotated up and down inside the catalytic oxidation kettle, and VOCs waste gas will not leak.

[0007] Preferably, a collecting frame is installed on the catalytic oxidation kettle, and a plurality of side pipes are installed on the catalytic oxidation kettle, and the side pipes correspond to the collecting frame one by one.

[0008] Preferably, the rotating mechanism includes a groove, an intermediate rod, a connecting rod and a return spring, and the surface of the filter assembly is provided with grooves, and the grooves on two adjacent filter assemblies are aligned;

[0009] The connecting rod is slidably connected to the inside of the catalytic oxidation kettle. An intermediate rod is installed at the other end of the connecting rod. A connecting rod is provided between the connecting rod and the catalytic oxidation kettle.

[0010] Preferably, both upper and lower ends of the middle rod are arranged in a conical structure, and both ends of the upper end of the middle rod are inserted into the grooves aligned with the two adjacent filter components, and the grooves pass through the middle below the scraper.

[0011] Preferably, a plurality of scrapers are installed inside the catalytic oxidation kettle, and the lower side of the scrapers is in contact with the upper end of the filter assembly.

[0012] Preferably, a hydraulic cylinder is installed on the catalytic oxidation kettle, and a push rod is installed at the output end of the hydraulic cylinder, the lower end of the push rod is aligned with the groove, and the push rod is located on the side of the scraper.

[0013] Preferably, the collection frame is located on the side of the filter assembly, a feed port is installed on the collection frame, the filter assembly is spherical, the lower side of the filter assembly is in contact with the catalytic oxidation kettle, and the upper side of the filter assembly is not in contact with the catalytic oxidation kettle.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with an intermediate rod and a groove. The upper filter assembly rotates to push the intermediate rod, and the intermediate rod pushes the lower filter assembly to rotate. The rotation direction of the filter assembly is counterclockwise. During the rotation of the filter assembly, the plate scrapes the foreign matter adsorbed on the surface of the filter assembly to prevent the adsorbed foreign matter from blocking the normal adsorption of the filter assembly, thereby greatly improving the service life of the filter assembly.

[0016] 2. The utility model is provided with a push rod and an intermediate rod. The push rod is extended and retracted to push the groove. Since the upper and lower ends of the intermediate rod are both provided with a conical structure, the intermediate rod is pushed during the rotation of the filter assembly to rotate the filter assembly below, and then the upper and lower filter assemblies rotate synchronously. The filter assembly rotates inside the catalytic oxidation kettle. The VOCs exhaust gas will not leak out from the gap between the filter assembly and the catalytic oxidation kettle, which can avoid the generation of more CO in incomplete catalytic oxidation and inhalation by the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the catalytic oxidation kettle of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the filter assembly of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1. Catalytic oxidation kettle; 2. Collection frame; 3. Catalytic oxidation control assembly; 4. Side pipe; 5. Input pipe; 6. Output pipe; 7. Hydraulic cylinder; 8. Scraper; 9. Push rod; 10. Filter assembly; 11. Groove; 12. Intermediate rod; 13. Connecting rod; 14. Return spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-4 , the utility model provides the following technical solutions:

[0024] A catalytic oxidation device for treating VOCs waste gas, comprising an input pipe; 5, an output pipe; 6 and a catalytic oxidation control component; 3, a catalytic oxidation kettle; an input pipe is installed at the top of 1; 5, a catalytic oxidation kettle; an output pipe is installed at the bottom of 1; 6, a catalytic oxidation kettle; several catalytic oxidation control components are installed on 1; 3, a catalytic oxidation kettle; a collection frame is installed on 1; 2, a catalytic oxidation kettle; a plurality of side pipes are installed on 1; 4, a side pipe; 4 corresponds one-to-one with the collection frame; 2.

[0025] Through an input pipe; 5, VOCs waste gas can be introduced into the interior of the catalytic oxidation kettle; 1, and another input pipe; 5 can be used to introduce the gas required for catalytic oxidation. Through the catalytic oxidation control component; 3, the environment required for catalytic oxidation can be adjusted and changed, so that the VOCs waste gas can be better catalytically oxidized. During the catalytic oxidation process, the substances required for catalytic oxidation can be introduced, and different gases can be introduced at different stages of catalytic oxidation according to different stages of catalytic oxidation.

[0026] The catalytic oxidation kettle 1 is internally installed with a filter assembly 10, and a rotating mechanism is installed on the filter assembly 10, through which the filter assembly 10 can be rotated up and down inside the catalytic oxidation kettle 1, and VOCs exhaust gas will not leak. The rotating mechanism includes a groove 11, an intermediate rod 12, a connecting rod 13 and a return spring 14. A groove 11 is provided on the surface of the filter assembly 10; the grooves 11 on two adjacent filter assemblies 10 are aligned; the connecting rod 13 is slidably connected to the inside of the catalytic oxidation kettle 1, and an intermediate rod 12 is installed on the other end of the connecting rod 13. A connecting rod 13 is provided between the connecting rod 13 and the catalytic oxidation kettle 1. The upper and lower ends of the middle rod 12 are both set with conical structures, and the upper ends of the middle rod 12 are inserted into the grooves aligned with the two adjacent filter components 10; inside the catalytic oxidation kettle 1, a hydraulic cylinder 7 is installed on the catalytic oxidation kettle 1, and a push rod 9 is installed on the output end of the hydraulic cylinder 7, and the lower end of the push rod 9 is aligned with the groove 11, and the push rod 9 is located on the side of the scraper 8.

[0027] When the catalytic oxidation kettle 1 has been catalytically oxidizing for a period of time, the hydraulic cylinder 7 runs, and the hydraulic cylinder 7 causes the push rod 9 to move downward, and the push rod 9 moves downward to the inside of the groove 11. Since the groove 11 into which the push rod 9 is inserted is not in the middle position, the left and right gravity of the filter assembly 10 is different, and the push rod 9 extends to push the top filter assembly 10, and the top filter assembly 10 rotates counterclockwise. During the rotation of the top filter assembly 10, the middle rod 12 is pushed, and the middle rod 12 moves downward. During the downward movement of the middle rod 12, the connecting rod 13 moves downward synchronously, and the middle rod 12 moves downward and is inserted into the adjacent groove 11 below. The middle rod 12 pushes the adjacent filter assembly 10 to rotate, realizing transmission, thereby causing multiple filter assemblies 10 to rotate. There will be no gap between the rotation point of the filter assembly 10 and the catalytic oxidation kettle 1, and VOCs exhaust gas will not leak.

[0028] Groove; 11 passes through the scraper; in the middle below 8, catalytic oxidation kettle; several scrapers are installed inside 1; 8, scraper; 8 is fitted with the upper end of the filter assembly; 10, collection frame; 2 is located on the side of the filter assembly; 10, the collection frame; 2 is equipped with a feed port, filter assembly; 10 is a spherical setting, filter assembly; 10 is fitted with the catalytic oxidation kettle; 1 on the lower side, filter assembly; 10 is not fitted with the catalytic oxidation kettle; 1 on the upper side.

[0029] During the rotation of the filter component 10, the scraper 8 scrapes the adsorbent above the filter component 10, and the scraped adsorbent slides to the inside of the collection frame 2. The lower side of the filter component 10 is in contact with the catalytic oxidation kettle 1, thereby preventing the purified VOCs exhaust gas from flowing downward. The scraping method can increase the service life of the filter component 10 and greatly improve the purification effect of the filter component 10.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A catalytic oxidation device for treating VOCs waste gas, characterized in that: The invention comprises an input pipe (5), an output pipe (6) and a catalytic oxidation control component (3), wherein the top of the catalytic oxidation kettle (1) is provided with an input pipe (5), the bottom of the catalytic oxidation kettle (1) is provided with an output pipe (6), a plurality of catalytic oxidation control components (3) are provided on the catalytic oxidation kettle (1), a filter component (10) is provided inside the catalytic oxidation kettle (1), and a rotating mechanism is provided on the filter component (10), and the filter component (10) can be rotated up and down inside the catalytic oxidation kettle (1) by the rotating mechanism, so that VOCs waste gas will not leak.

2. A catalytic oxidation device for treating VOCs waste gas according to claim 1, characterized in that: The catalytic oxidation kettle (1) is provided with a collecting frame (2), and a plurality of side pipes (4) are provided on the catalytic oxidation kettle (1), wherein the side pipes (4) correspond to the collecting frame (2) on a one-to-one basis.

3. The catalytic oxidation device for treating VOCs waste gas according to claim 1, characterized in that: The rotating mechanism comprises a groove (11), an intermediate rod (12), a connecting rod (13) and a return spring (14); the surface of the filter assembly (10) is provided with a groove (11) around it, and the grooves (11) on two adjacent filter assemblies (10) are aligned; The connecting rod (13) is slidably connected to the interior of the catalytic oxidation kettle (1), the other end of the connecting rod (13) is installed with an intermediate rod (12), and a connecting rod (13) is provided between the connecting rod (13) and the catalytic oxidation kettle (1).

4. A catalytic oxidation device for treating VOCs waste gas according to claim 3, characterized in that: The upper and lower ends of the intermediate rod (12) are both arranged in a conical structure. The upper ends of the intermediate rod (12) are inserted into the grooves (11) aligned with the upper two adjacent filter components (10), and the grooves (11) pass through the middle below the scraper (8).

5. The catalytic oxidation device for treating VOCs waste gas according to claim 1, characterized in that: A plurality of scrapers (8) are installed inside the catalytic oxidation kettle (1), and the lower portion of the scrapers (8) is in contact with the upper end of the filter assembly (10).

6. The catalytic oxidation device for treating VOCs waste gas according to claim 1, characterized in that: The catalytic oxidation kettle (1) is equipped with a hydraulic cylinder (7), and the output end of the hydraulic cylinder (7) is equipped with a push rod (9), the lower end of the push rod (9) is aligned with the groove (11), and the push rod (9) is located on the side of the scraper (8).

7. The catalytic oxidation device for treating VOCs waste gas according to claim 2, characterized in that: The collecting frame (2) is located on the side of the filter assembly (10), and a feed port is installed on the collecting frame (2). The filter assembly (10) is spherical, and the lower side of the filter assembly (10) is in contact with the catalytic oxidation kettle (1), while the upper side of the filter assembly (10) is not in contact with the catalytic oxidation kettle (1).

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