CN210752026U - VOCs waste gas recovery processing apparatus in glass fiber production - Google Patents

Abstract

The utility model discloses a VOCs waste gas recovery and treatment device in glass fiber production, which comprises a spray chamber, a composite catalytic chamber, a gas concentration detection box, a first pipeline and a second pipeline. The top of the spray chamber passes through the first pipeline Connected with the top of the composite catalytic chamber, one side of the gas concentration detection box is communicated with the composite catalytic chamber through a second pipe, the other side is provided with an exhaust pipe, one end of the third pipe is connected to the top of the gas concentration detection box, and the other end is connected to the top of the gas concentration detection box. Connected with the second pipe, the spray chamber is provided with a first filter plate, a spray pipe, a second filter plate and a spray liquid tank from top to bottom in sequence, and the composite catalytic chamber is sequentially provided with a first filter plate from top to bottom. An ultraviolet lamp, a composite catalyst device and a second ultraviolet lamp, so the beneficial effects of the utility model are: the glass fiber waste gas can be pretreated, and the double-layer synergistic oxidation of ozone and catalysis can be used to make the VOCs in the glass fiber waste gas. Exhaust gas purification is more thorough.

Description

A VOCs waste gas recovery and treatment device in glass fiber production

technical field

The utility model relates to the technical field of glass fiber waste gas treatment, in particular to a VOCs waste gas recovery and treatment device in glass fiber production.

Background technique

Glass fiber (original name in English: glass fiber or fiberglass) is an inorganic non-metallic material with excellent performance. With the rapid development of the market economy, glass fiber has gradually become an indispensable raw material for construction, transportation, electronics, electrical, chemical, metallurgy, environmental protection, national defense and other industries.

In the production process of glass fiber, when the resin needs to be dried and cured, harmful gases such as methanol and phenolic VOCs will be generated, and the direct emission will cause pollution to the atmospheric environment. For organic waste gas such as VOCs, the most efficient and environmentally friendly treatment method is ultraviolet photolysis, but the single method of ultraviolet oxidation of organic matter will have defects such as incomplete oxidation to form intermediate products or secondary pollutants, so that insufficient purification of gas If it is discharged into the air, it will also cause environmental pollution.

Utility model content

The utility model provides a VOCs waste gas recovery and treatment device in glass fiber production, which can pretreat the glass fiber waste gas and utilize the double-layer synergistic oxidation of ozone and catalysis, so that the VOCs waste gas in the glass fiber waste gas can be purified more thoroughly.

A VOCs waste gas recovery and treatment device in glass fiber production, comprising a spray chamber, a composite catalytic chamber, a gas concentration detection box, a first pipeline, a second pipeline and a third pipeline, and both sides of the spray chamber are provided with intake air The top of the spray chamber is communicated with the top of the composite catalytic chamber through a first pipe, one side of the gas concentration detection box is communicated with the composite catalytic chamber through a second pipe, and an exhaust pipe is provided on the other side. One end of the three pipes is connected to the top of the gas concentration detection box, and the other end is connected to the second pipe. The second pipe and the exhaust pipe are provided with solenoid valves, and the spray chamber is provided with a first filter plate from top to bottom. , a spray pipe, a second filter plate and a spray tank. The spray pipe extends to the outside of the spray room and is connected to the spray tank through a circulating water pump set outside the spray room. The bottom is provided with a first ultraviolet lamp, a composite catalyst device and a second UV lamp in sequence, and the composite catalyst device is provided with two photocatalyst layers and one ozone catalyst layer, wherein the ozone catalyst layer is located in the middle of the two photocatalyst layers. .

As a preferred technical solution of the present invention, the intake duct is arranged between the spray duct and the second filter screen, and the second duct is arranged at the lower end of the second ultraviolet lamp.

As a preferred technical solution of the present invention, an induced draft fan is provided on both the first duct and the exhaust duct.

As a preferred technical solution of the present invention, the first filter plate and the second filter plate are fixed in the spray chamber by a detachable mechanism, and the detachable mechanism includes a fixing recess provided on the inner wall of the right side of the spray chamber A groove, a fixing ring arranged on the left inner wall of the spray chamber, a first fixing plate and a second fixing plate arranged on the left outer wall of the spray chamber, one end of the first filter plate and the second filter plate are provided with The other end of the pull ring penetrates the left side wall of the spray chamber and extends through the fixing ring to the inside of the fixing groove. The second fixing plate is movably connected with a movable plate through a rotating shaft, and the movable plate and the first fixing block are connected by bolts. Fixed connection.

As a preferred technical solution of the present invention, a sealing ring is provided between the first filter plate, the second filter plate and the fixing ring.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The waste gas is sprayed in reverse by the liquid sprayed from the spray pipe, which can remove dust, large particles of impurities and viscous substances in the coating waste gas, and can also remove part of the water-soluble gas, reducing the subsequent activated carbon filter. Under the action of the circulating water pump, the liquid in the spray tank can be recycled to save resources;

2. Using the double-layer synergistic oxidation of ozone and catalysis, the organic waste gas passes through a series of reactions of photocatalytic oxidation - ozone catalytic oxidation - photocatalytic oxidation, and then passes through the gas concentration detection box, the third pipeline and the solenoid valve, which can ensure the external The exhausted gas meets the emission requirements, and the purification is more thorough, avoiding the situation that organic pollutants enter the atmosphere and cause pollution to the environment;

3. The first filter plate and the second filter plate in the spray chamber are detachably installed, and the filter plate can be replaced regularly to ensure the adsorption performance of the filter plate during long-term use.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

FIG. 2 is an enlarged view of part A in the structural schematic diagram of the present utility model.

List of reference signs: 1. Spray chamber; 2. Composite catalytic chamber; 3. Gas concentration detection box; 4. First pipeline; 5. Second pipeline; 6. Third pipeline; 7. Intake pipeline; 8. Exhaust pipe; 9. Solenoid valve; 10. The first filter plate; 11. The spray pipe; 12, The second filter plate; 13, The spray tank; 14, The circulating water pump; 15, The first ultraviolet lamp; 16, Second ultraviolet; 17, photocatalyst layer; 18, ozone catalyst layer; 19, induced draft fan; 20, fixing groove; 21, fixing ring; 22, second fixing plate; 23, second fixing plate; 24, pulling ring ; 25, movable plate; 26, sealing ring.

Detailed ways

The present invention will be further clarified below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" ” refer to directions towards or away from the geometric center of a particular part, respectively.

As shown in Figure 1, a VOCs waste gas recovery and treatment device in glass fiber production includes a spray chamber 1, a composite catalytic chamber 2, a gas concentration detection box 3, a first pipeline 4, a second pipeline 5 and a third pipeline 6. There are intake pipes 7 on both sides of the spray chamber 1, the top of the spray chamber 1 is communicated with the top of the composite catalytic chamber 2 through the first pipe 4, and one side of the gas concentration detection box 3 passes through the second pipe. The pipe 5 is communicated with the composite catalytic chamber 2, and the other side is provided with an exhaust pipe 8. One end of the third pipe 6 is connected to the top of the gas concentration detection box 3, and the other end is communicated with the second pipe 5. The second pipe 5 and The exhaust pipe 8 is provided with a solenoid valve 9, and the spray chamber 1 is sequentially provided with a first filter plate 10, a spray pipe 11, a second filter plate 12 and a spray liquid tank 13 from top to bottom, so The spray pipe 11 extends to the outside of the spray chamber 1 and is connected to the spray liquid tank 13 through a circulating water pump 14 arranged outside the spray chamber 1. The composite catalytic chamber 2 is sequentially provided with first ultraviolet rays from top to bottom. The lamp 15 , the composite catalyst and the second ultraviolet lamp 16 , the composite catalyst is provided with two photocatalyst layers 17 and one ozone catalyst layer 18 , wherein the ozone catalyst layer 18 is located in the middle of the two photocatalyst layers 17 .

When the utility model is in use, the VOCs waste gas generated by the glass fiber enters the spray chamber 1 through the air inlet pipe 7, and the liquid sprayed from the spray pipe 11 sprays the VOCs waste gas in a reverse direction, which can remove the dust and large particles in the VOCs waste gas and waste gas. Particulate impurities and viscous substances can also be removed, and at the same time, part of the gas dissolved in water can be removed, thereby reducing the processing load of the subsequent first filter plate 10. The liquid in the spray tank 13 can be recycled under the action of the circulating water pump 14, saving energy. By setting the second filter screen 12, large particles of impurities and viscous substances that fall with the spray liquid can be prevented from falling into the spray liquid tank 13, and some dust, large particles of impurities and viscous substances that do not fall with the spray liquid are affected. The blocking of the first filter screen 10 is adsorbed on the first filter screen 10, and the exhaust gas treated by the spray chamber 1 enters the composite catalytic chamber 2. The high-energy ultraviolet rays emitted by the ultraviolet lamp can directly crack the organic waste gas, and the residual waste gas in the waste gas can be directly cracked. The pollutants enter the composite catalyst device, and the photocatalysts in the photocatalyst layers 13 on both sides can be TiO ₂ , which can generate free radicals under the action of ultraviolet light, which can oxidize and react with the organic matter in the exhaust gas, and the organic exhaust gas is decomposed into The harmless gas carbon dioxide and water, the ozone substance generated in the ozone catalyst layer 4 can further oxidize the residual organic matter in the exhaust gas, and through a series of reactions of photocatalytic oxidation - ozone catalytic oxidation - photocatalytic oxidation, the reacted gas will enter the gas concentration detection Gas detection is carried out in the box 3. At this time, the solenoid valve 9 on the exhaust pipe 8 and the solenoid valve 9 on the third pipe 6 are both closed. When the gas detection reaches the emission standard, the solenoid valve 9 on the exhaust pipe 8 will be closed. Open, and discharge the gas. If the gas detection fails to meet the emission standard, the solenoid valve 9 on the third pipeline 6 will be opened, and the gas will enter the composite catalytic chamber 2 through the third pipeline 6 again for catalytic decomposition until it reaches the emission standard. It is the purification treatment that makes the exhaust gas purification treatment more thorough, avoiding environmental pollution and harm to human health.

As an embodiment of the present invention, the intake pipe 7 is arranged between the spray pipe 11 and the second filter screen 12, and the VOCs exhaust gas enters through the intake pipe 7, moves upward, and is ejected from the spray pipe 11 The relative movement of the liquid makes the reaction between the exhaust gas and the spray liquid more sufficient. The second pipe 5 is arranged at the lower end of the second ultraviolet lamp 16, so that the exhaust gas is discharged through a series of reactions of photocatalytic oxidation-ozone catalytic oxidation-photocatalytic oxidation Composite catalytic chamber.

As an embodiment of the present invention, the first duct 4 and the exhaust duct 8 are provided with an induced draft fan 19, which can accelerate the flow of gas.

As an embodiment of the present utility model, as shown in FIG. 2 , the first filter plate 10 and the second filter plate 12 are fixed in the spray chamber 1 by a detachable mechanism, and the detachable mechanism includes a set in the spray chamber 1. The fixing groove 20 on the right inner wall of the shower room 1, the fixing ring 21 arranged on the left inner wall of the shower room 1, the first fixing plate 22 and the second fixing plate 23 arranged on the left outer wall of the shower room 1 One end of the first filter plate 10 and the second filter plate 12 is provided with a pull ring 24, the other end penetrates the left side wall of the spray chamber 1, and extends through the fixing ring 21 to the interior of the fixing groove 20. The second The fixed plate 22 is movably connected with a movable plate 25 through a rotating shaft. The movable plate 25 and the first fixed block 22 are fixedly connected by bolts. When the first filter plate 10 and the second filter 12 are used for a period of time, the movable plate is removed. 25 and the bolt between the first fixed plate 22, pull down the movable plate 25, and pull the pull ring 24 on one side of the filter plate, the first filter plate 10 or the second filter plate 12 in the spray chamber 1 can be pulled out. , replace it to ensure the filtering effect.

As an embodiment of the present invention, a sealing ring 26 is provided between the first filter plate 10 , the second filter plate 12 and the fixing ring 21 to improve the sealing and prevent the gas in the spray chamber 1 from leaking out.

Finally, it should be noted that the above is only a preferred example of the present utility model, and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (5)

1. a VOCs waste gas recovery and treatment device in glass fiber production, is characterized in that: comprise spray chamber, composite catalytic chamber, gas concentration detection box, first pipeline, second pipeline and third pipeline, described spray chamber There are intake pipes on both sides, the top of the spray chamber is connected with the top of the composite catalytic chamber through the first pipe, one side of the gas concentration detection box is connected with the composite catalytic chamber through the second pipe, and the other side is provided with a discharge Gas pipeline, one end of the third pipeline is connected to the top of the gas concentration detection box, and the other end is connected to the second pipeline. The second pipeline and the exhaust pipeline are both provided with solenoid valves, and the spray chamber is arranged from top to bottom. A first filter plate, a spray pipe, a second filter plate and a spray tank are provided. The spray pipe extends to the outside of the spray room and is connected to the spray tank through a circulating water pump set outside the spray room. The composite catalytic chamber is provided with a first ultraviolet lamp, a composite catalyst and a second ultraviolet lamp in sequence from top to bottom, and the composite catalyst is provided with two photocatalyst layers and one ozone catalyst layer, wherein the ozone catalyst layer is located in the two layers. layer in the middle of the photocatalyst layer. 2. The VOCs waste gas recovery and treatment device in glass fiber production according to claim 1, characterized in that: the intake pipe is arranged between the spray pipe and the second filter screen, and the second pipe is arranged in the the lower end of the second ultraviolet lamp. 3 . The VOCs waste gas recovery and treatment device in glass fiber production according to claim 1 , wherein an induced draft fan is provided on the first duct and the exhaust duct. 4 . 4. The VOCs waste gas recovery and treatment device in glass fiber production according to claim 1, wherein the first filter plate and the second filter plate are fixed in the spray chamber by a detachable mechanism, and the detachable The mechanism includes a fixing groove arranged on the right inner wall of the spray chamber, a fixing ring arranged on the left inner wall of the spray chamber, a first fixing plate and a second fixing plate arranged on the left outer wall of the spray chamber, so One end of the first filter plate and the second filter plate is provided with a pull ring, the other end penetrates the left side wall of the spray chamber, and extends into the fixed groove through the fixing ring, and the second fixing plate is movably connected with a rotating shaft. A movable plate, the movable plate and the first fixed block are fixedly connected by bolts. 5 . The VOCs waste gas recovery and treatment device in glass fiber production according to claim 4 , wherein a sealing ring is provided between the first filter plate, the second filter plate and the fixing ring. 6 .

Images