CN209952592U - VOCs processing system of rubber processing industry - Google Patents

Abstract

The utility model discloses a VOCs treatment system in the rubber processing industry, comprising a pretreatment dust removal device, a UV photocatalytic oxidation treatment device, an activated carbon adsorption device, an ozone catalytic device, a chimney, a fan and a frequency conversion control cabinet; a pretreatment dust removal device and a collection pipeline The rear end of the pretreatment dust removal device is connected with the UV photocatalytic oxidation treatment device; the rear end of the UV photocatalytic oxidation treatment device is connected with the activated carbon adsorption device; the rear end of the activated carbon adsorption device is connected with the oxidation catalyst device; The rear end is connected with the fan, the air outlet of the fan is connected with the chimney through the round pipe elbow; the frequency conversion control cabinet and the UV ultraviolet lamp control module are connected through the circuit, and the frequency conversion control cabinet and the fan are connected through the circuit. The VOCs treatment system in the rubber processing industry of the utility model can effectively remove ozone, improve the conversion rate of VOCs organic gas, and improve the purification efficiency of waste gas. At the same time, the system has compact structure, easy maintenance, safety and energy saving.

Description

A VOCs treatment system for rubber processing industry

technical field

The utility model relates to the field of environmental protection technology, in particular to a VOCs processing system in the rubber processing industry.

Background technique

VOCs is the English abbreviation of volatile organic compounds, and the Chinese name is volatile organic compounds. In my country, volatile organic compounds refer to organic compounds with a saturated vapor pressure of more than 133.32Pa at room temperature and a boiling point of below 50 to 260 °C at room temperature. Press down on any volatile organic solids or liquids. The sources of VOCs are diverse and very complex. The emission sources mainly include four categories: transportation sources, industrial sources, domestic sources and agricultural sources. Among them, industrial sources emit the most, accounting for 43% of the total. The rubber and plastic processing industry occupies a relatively important position in the industry, and a large number of rubber and plastic products are produced every year, but in the process of rubber and plastic processing, industrial waste gas, styrene and other pollutants are often produced, and there is a pungent odor, so it is necessary to set up waste gas The treatment system is used to purify the above-mentioned waste gas.

Due to its wide variety of VOCs in the rubber and plastics processing industry, it is one of the more difficult industrial sources to handle. Currently, commonly used technologies include leak detection and repair technology, low-temperature plasma technology, catalytic oxidation technology and biological treatment technology. Since VOCs are often emitted in the form of mixtures, the above-mentioned technologies have disadvantages such as high energy consumption, incomplete exhaust gas treatment, secondary pollution, and high treatment costs.

There is an urgent need for a compact, resource-saving, and easy-to-maintain VOCs treatment system in the rubber processing industry to solve the above technical problems.

Utility model content

In order to solve the above problems, the utility model provides a VOCs treatment system in the rubber processing industry. The VOCs treatment system in the rubber processing industry of the utility model can effectively remove ozone, improve the organic gas conversion rate of VOCs, and improve the purification efficiency of waste gas.

The utility model solves the above-mentioned technical problems through the following technical solutions:

The utility model provides a VOCs treatment system in the rubber processing industry, comprising a pretreatment dust removal device, a UV photocatalytic oxidation treatment device, an activated carbon adsorption device, an ozone catalytic device, a chimney, a fan and a frequency conversion control cabinet;

The front end of the pretreatment dedusting device is connected with the collection pipe, the rear end of the pretreatment dedusting device is connected with the front end of the UV photocatalytic oxidation treatment device, and the interior of the pretreatment dedusting device is provided with paint mist felt and a cloth bag, the paint mist felt is arranged in front of the cloth bag;

The rear end of the UV photocatalytic oxidation treatment device is connected to the front end of the activated carbon adsorption device; the UV photocatalytic oxidation treatment device includes a UV ultraviolet lamp tube and a titanium dioxide catalytic plate, and the UV ultraviolet lamp tube is arranged on the titanium dioxide. In front of the catalytic plate, a UV ultraviolet lamp control module is arranged outside the UV photocatalytic oxidation treatment device;

The rear end of the activated carbon adsorption device is connected to the front end of the ozone catalytic device; at least one set of activated carbon adsorption box is arranged inside the activated carbon adsorption device, and the activated carbon adsorption box and the UV photocatalytic oxidation treatment device pass through a pipeline connected, a manual air valve is installed on the pipeline, and a differential pressure gauge is installed on the box body of the activated carbon adsorption box;

The rear end of the ozone catalytic device is connected with the air inlet of the fan through a variable diameter, and the air outlet of the fan is connected with the chimney through a round pipe elbow; the ozone catalytic device includes four rows of push-pull mesh. a drawer, wherein the push-pull mesh drawer is filled with an ozone catalyst;

The frequency conversion control cabinet and the UV ultraviolet lamp control module are connected through a circuit, and the frequency conversion control cabinet and the fan are connected through a circuit.

In the present invention, the pretreatment dust removal device is communicated with the collection pipeline, and is used for pretreatment of the gas to be treated, mainly for removing solid matter and dust in the gas, such as solid organic matter or incidental solid matter produced in the rubber processing process. some particulate matter;

Preferably, the paint mist felt and the airflow direction are at an angle of 55°, and the above arrangement increases the filtering area.

In the utility model, the UV photocatalytic oxidation treatment device is used to generate ozone, and under the action of the UV ultraviolet lamp, the UV photocatalytic oxidation treatment device generates ozone to further oxidize the remaining substances treated in the previous process, and It decomposes into carbon dioxide and water;

Preferably, the titanium dioxide catalytic plate in the UV photocatalytic oxidation device is a honeycomb mesh structure, and the above-mentioned structure arrangement increases its contact area with air;

Preferably, the titanium dioxide catalytic plate is arranged in parallel with the UV ultraviolet lamp tube, and the titanium dioxide catalytic plate faces the airflow direction;

Preferably, the rear end of the pretreatment dust removal device and the front end of the UV photocatalytic oxidation treatment device are connected by flanges.

In the utility model, the activated carbon adsorption device adopts activated carbon to adsorb the gas treated in the previous process;

Preferably, the activated carbon adsorption device is provided with two sets of activated carbon adsorption boxes, and the two sets of the activated carbon adsorption boxes are placed in parallel;

Preferably, the activated carbon adsorption box is provided with a box door that is open to each other through a hinge mechanism, and a handle is arranged on the box door.

In the utility model, the ozone catalytic device catalyzes and decomposes the excess ozone generated by the UV photocatalytic oxidation device through a precious metal ozone catalyst, so as to remove the ozone pollution to the atmosphere.

In the utility model, the blower is used to draw the gas treated by the ozone catalytic device into the chimney, so as to be discharged into the atmosphere;

Preferably, the fan is a variable frequency centrifugal fan.

In the utility model, the chimney is used to realize the discharge of the gas processed by the VOCs treatment system of the rubber processing industry.

The operation flow of the VOCs treatment system in the rubber processing industry of the present invention is as follows:

The VOCs waste gas in the workshop of the rubber and plastic processing factory is collected by the gas collecting hood, and firstly enters the pretreatment dust removal device through the collection pipe. Particulate matter; the pre-dusted exhaust gas reaches the UV photocatalytic oxidation treatment device, and is oxidized and decomposed into small particulate matter and harmless inorganic matter, such as carbon dioxide and water, under the combined action of the UV ultraviolet lamp and the titanium dioxide catalytic plate. Generate excess ozone; the gas after UV photolysis reaches the activated carbon adsorption device, and through the activated carbon adsorption box filled with activated carbon, the small particulate matter and harmless inorganic matter in the gas are finally adsorbed by the activated carbon; the gas after activated carbon adsorption contains UV light The excess ozone generated by the catalytic oxidation treatment device then passes through the push-pull mesh drawer in the ozone catalytic device. Under the action of the catalyst in the push-pull mesh drawer, the ozone is catalytically removed, and the final purified gas passes through the traction of the fan The chimney discharges up to standard.

The advantages and beneficial effects of the utility model are as follows: the VOCs treatment system in the rubber processing industry of the utility model solves the problem of ozone emission in the process of treating waste gas by general UV photolysis equipment; the combined design has compact structure and light weight; and other threats to the health of workers working in confined spaces, and ensure a clean working environment.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a VOCs treatment system in the rubber processing industry according to an embodiment of the present invention.

Description of reference numbers:

1. Pretreatment dust removal device;

2. UV photocatalytic oxidation treatment device;

3. Activated carbon adsorption device;

4. Ozone catalytic device;

5. Chimney;

6. Fan;

7. Frequency conversion control cabinet;

11. Paint mist felt;

12. Cloth bag;

21. UV lamp tube;

22. Titanium dioxide catalytic plate;

23. UV ultraviolet lamp control module;

31. Activated carbon adsorption box;

32. Manual air valve;

33. Differential pressure gauge;

41. Push-pull mesh drawers.

Detailed ways

The specific embodiments of the present utility model will be further described below with reference to the accompanying drawings and embodiments. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

As shown in FIG. 1 , this embodiment provides a VOCs treatment system in the rubber processing industry, including a pretreatment dust removal device 1, a UV photocatalytic oxidation treatment device 2, an activated carbon adsorption device 3, an ozone catalytic device 4, a chimney 5, and a fan 6. and the frequency conversion control cabinet 7; the front end of the pretreatment dust removal device 1 is connected with the collection pipeline, the rear end of the pretreatment dust removal device 1 is connected with the front end of the UV photocatalytic oxidation treatment device 2, and the interior of the pretreatment dust removal device 1 is provided with paint mist The felt 11 and the cloth bag 12, the paint mist felt 11 is arranged in the front of the cloth bag 12; the rear end of the UV photocatalytic oxidation treatment device 2 is connected with the front end of the activated carbon adsorption device 3; the UV photocatalytic oxidation treatment device 2 includes a UV ultraviolet lamp 21 and The titanium dioxide catalytic plate 22, the UV ultraviolet lamp 21 are arranged in front of the titanium dioxide catalytic plate 22, the UV photocatalytic oxidation treatment device 2 is provided with a UV ultraviolet lamp control module 23; the rear end of the activated carbon adsorption device 3 is connected to the ozone catalytic device 4 The front end of the activated carbon adsorption device 3 is provided with two sets of activated carbon adsorption boxes 31, and the activated carbon adsorption box 31 and the UV photocatalytic oxidation treatment device 2 are connected through pipelines, and a manual air valve 32 is installed on the pipeline. The box of the activated carbon adsorption box 31 A differential pressure gauge 33 is installed on the body; the rear end of the ozone catalytic device 4 is connected with the air inlet of the fan 6 through a variable diameter, and the air outlet of the fan 6 is connected with the chimney 5 through a round pipe elbow; the ozone catalytic device 4 includes four rows of The mesh drawer 41 can be pushed and pulled, and the mesh drawer 41 can be filled with ozone catalyst; the frequency conversion control cabinet 7 and the UV ultraviolet lamp control module 23 are connected by a circuit, and the frequency conversion control cabinet 7 and the fan 6 are connected by a circuit.

In this embodiment, the pretreatment and dust removal device 1 is communicated with the collection pipeline, and is used for pretreatment of the gas to be treated, mainly for removing solid substances and dusts in the gas, such as solid organic substances or some incidental substances produced in the rubber processing process. Particulate matter; the paint mist felt 11 is at an angle of 55° with the direction of the airflow, and the above arrangement increases the filtering area.

In this embodiment, the UV photocatalytic oxidation treatment device 2 is used to generate ozone. Under the action of the UV ultraviolet lamp 21, the UV photocatalytic oxidation treatment device 2 generates ozone to further oxidize the remaining substances treated in the previous process. It is decomposed into carbon dioxide and water; the titanium dioxide catalytic plate 22 in the UV photocatalytic oxidation device is a honeycomb mesh structure, and the above-mentioned structure is arranged to increase its contact area with the air; the titanium dioxide catalytic plate 22 is arranged in parallel with the UV ultraviolet lamp 21, And the titanium dioxide catalytic plate 22 faces the airflow direction; the rear end of the pretreatment dust removal device 1 and the front end of the UV photocatalytic oxidation treatment device 2 are connected by flanges.

In this embodiment, the activated carbon adsorption device 3 uses activated carbon to adsorb the gas treated in the previous process; two sets of activated carbon adsorption boxes 31 are placed in parallel; the activated carbon adsorption box 31 is provided with a hinged mechanism. , the box door is provided with a handle.

In this embodiment, the ozone catalytic device 4 catalyzes and decomposes the excess ozone generated by the UV photocatalytic oxidation treatment device 2 through a precious metal ozone catalyst, so as to remove the pollution caused by ozone to the atmosphere.

In this embodiment, the blower 6 is used to draw the gas treated by the ozone catalytic device 4 into the chimney 5, so as to be discharged into the atmosphere; the blower 6 is a variable frequency centrifugal blower.

In this embodiment, the chimney 5 is used to discharge the gas processed by the VOCs treatment system in the rubber processing industry.

The operation flow of the VOCs treatment system in the rubber processing industry of the present invention is as follows:

The VOCs waste gas in the workshop of the rubber and plastic processing factory is collected by the gas collecting hood, and firstly enters the pretreatment dust removal device through the collection pipe. Particulate matter; the pre-dusted exhaust gas reaches the UV photocatalytic oxidation treatment device, and is oxidized and decomposed into small particulate matter and harmless inorganic matter, such as carbon dioxide and water, under the combined action of the UV ultraviolet lamp and the titanium dioxide catalytic plate. Generate excess ozone; the gas after UV photolysis reaches the activated carbon adsorption device, and through the activated carbon adsorption box filled with activated carbon, the small particulate matter and harmless inorganic matter in the gas are finally adsorbed by the activated carbon; the gas after activated carbon adsorption contains UV light The excess ozone generated by the catalytic oxidation treatment device then passes through the push-pull mesh drawer in the ozone catalytic device. Under the action of the catalyst in the push-pull mesh drawer, the ozone is catalytically removed, and the final purified gas passes through the traction of the fan. The chimney discharges up to standard.

The VOCs treatment system in the rubber processing industry of this embodiment solves the problem of ozone emission during the treatment of waste gas by general UV photolysis equipment; the combined design is compact in structure and light in weight; it avoids the threat of organic gases to the health of workers working in closed spaces such as workshops , to ensure a clean working environment.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (8)

1. A VOCs treatment system in the rubber processing industry is characterized by comprising a pretreatment dust removal device, a UV photocatalytic oxidation treatment device, an activated carbon adsorption device, an ozone catalysis device, a chimney, a fan and a variable frequency control cabinet;

the front end of the pretreatment dust removing device is communicated with a collecting pipeline, the rear end of the pretreatment dust removing device is connected with the front end of the UV photocatalytic oxidation treatment device, a paint mist felt and a cloth bag are arranged in the pretreatment dust removing device, and the paint mist felt is arranged in front of the cloth bag;

the rear end of the UV photocatalytic oxidation treatment device is connected with the front end of the activated carbon adsorption device; the UV photocatalytic oxidation treatment device comprises a UV ultraviolet lamp tube and a titanium dioxide catalysis plate, the UV ultraviolet lamp tube is arranged in front of the titanium dioxide catalysis plate, and a UV ultraviolet lamp tube control module is arranged outside the UV photocatalytic oxidation treatment device;

the rear end of the active carbon adsorption device is connected with the front end of the ozone catalytic device; at least one set of activated carbon adsorption tank is arranged in the activated carbon adsorption device, the activated carbon adsorption tank is communicated with the UV photocatalytic oxidation treatment device through a pipeline, a manual air valve is installed on the pipeline, and a differential pressure gauge is installed on a box body of the activated carbon adsorption tank;

the rear end of the ozone catalytic device is connected with the air inlet of the fan through a reducing pipe, and the air outlet of the fan is connected with the chimney through a round pipe elbow; the ozone catalytic device comprises four rows of push-pull reticular drawers, and ozone catalysts are filled in the push-pull reticular drawers;

the variable frequency control cabinet is connected with the UV ultraviolet lamp tube control module through a circuit, and the variable frequency control cabinet is connected with the fan through a circuit.

2. The rubber processing industry VOCs treatment system of claim 1, wherein said paint mist felt is at an angle of 55 ° to the direction of air flow.

3. The rubber processing industry VOCs treatment system of claim 1, wherein the titanium dioxide catalytic plates in the UV photocatalytic oxidation device are honeycomb mesh structures.

4. The rubber processing industry VOCs processing system of claim 1, wherein the titanium dioxide catalyst plate is disposed parallel to the UV lamp tube and faces in a direction of airflow flow.

5. The rubber processing industry VOCs processing system of claim 1, wherein the back end of the pre-treatment dust removal device and the front end of the UV photocatalytic oxidation treatment device are connected through flanges.

6. The system for treating VOCs in the rubber processing industry of claim 1, wherein two sets of activated carbon adsorption tanks are arranged in the activated carbon adsorption device, and the two sets of activated carbon adsorption tanks are arranged in parallel.

7. The rubber processing industry VOCs processing system of claim 1, wherein the activated carbon adsorption tank is provided with a split tank door through a hinge mechanism, and the tank door is provided with a handle.

8. The rubber processing industry VOCs processing system of claim 1, wherein the fan is a variable frequency centrifugal fan.