CN205461645U - Special high -efficient desorption system of adsorbing of spraying waste gas - Google Patents

Abstract

The utility model relates to a high-efficiency adsorption and desorption system for spraying waste gas, which includes a high-efficiency pretreatment box, a high-efficiency honeycomb activated carbon box, a centrifugal fan, an activated carbon regeneration device, an electric valve and a PLC control cabinet; the gas outlet end of the high-efficiency pretreatment box passes through pipelines and The valve group is connected with the inlet end of the high-efficiency honeycomb activated carbon box; the centrifugal fan is connected with the gas outlet of the high-efficiency honeycomb activated carbon box through the pipeline and the valve group; the regeneration device is connected with the high-efficiency honeycomb activated carbon box through the third pipeline and the electric valve group ; The PLC control cabinet is electrically connected with the electric valve. The utility model has double filtration to remove spraying waste gas, which can effectively remove paint mist and organic waste gas. The use of high-efficiency honeycomb activated carbon can better absorb organic waste gas and is more convenient to replace. The regeneration device can realize adsorption while desorption. Greatly increase the service life and replacement cycle of honeycomb activated carbon, save the company's later operating costs and reduce solid waste pollutants.

Description

A high-efficiency adsorption and desorption system for spraying exhaust gas

technical field

The utility model relates to a waste gas treatment system, in particular to a special high-efficiency adsorption and desorption system for spraying waste gas, which belongs to the technical field of waste gas treatment.

Background technique

Most of the paint exhaust gas is the exhaust gas containing paint, additives and other organic substances emitted during various processes such as painting in the paint spraying workshop. Spraying exhaust gas contains benzene, esters, ketones, non-methane total hydrocarbons, VOC and other organic gas substances that are harmful to the human body. If the spraying exhaust gas is not treated, it will not only endanger human health, but also affect the surrounding environment and air quality.

At present, spraying exhaust gas is only adsorbed by activated carbon and then discharged. The device using activated carbon adsorption for exhaust gas treatment has the problems of difficult desorption after activated carbon adsorption is saturated, and poor exhaust gas treatment effect. Frequent replacement of activated carbon is required during use, which is time-consuming and laborious. and huge waste of cost. At the same time, in the existing activated carbon adsorption and desorption device, the gap between the activated carbon fiber and the adsorption and desorption chamber is too large and the space of the adsorption and desorption chamber is too large, resulting in unnecessary consumption of heat and affecting the effect of adsorption and desorption. Water is easy to accumulate at the bottom, which affects the adsorption effect and the service life of the adsorption and desorption chamber, which brings great inconvenience and loss to users.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art. The utility model provides a special high-efficiency adsorption and desorption system for spraying waste gas, which has the effect of efficiently treating spraying waste gas, and can desorb while adsorbing to improve the adsorption effect , to reduce solid waste pollutants.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a special high-efficiency adsorption and desorption system for spraying waste gas, including a high-efficiency pre-treatment box, a high-efficiency honeycomb activated carbon box, a centrifugal fan, and a device for regenerating the activated carbon in the high-efficiency honeycomb activated carbon box. Regeneration device, electric valve and PLC control cabinet; the gas outlet end of the high-efficiency pretreatment box is connected to the inlet end of the high-efficiency honeycomb activated carbon box through the first pipeline and valve group; the centrifugal fan is connected through the second pipeline and valve group It is connected with the outlet end of the high-efficiency honeycomb activated carbon box; the regeneration device is respectively connected to the activated carbon outlet and the activated carbon inlet of the high-efficiency honeycomb activated carbon box through two groups of third pipelines and electric valve groups; the PLC control cabinet is connected to the electric The valve is electrically connected.

As a further improvement of the utility model, the high-efficiency pretreatment box, the high-efficiency honeycomb activated carbon box and the regeneration device have two groups respectively.

As a further improvement of the utility model, the high-efficiency pretreatment box includes a box body, and the opposite sides of the box body are respectively provided with an air inlet and an air outlet, and the air inlet and the air outlet are arranged in sequence in the box. There are air intake guide layer, glass fiber filter cotton, gear discharge low temperature plasma, first water retaining plate, water spray photocatalytic chamber, second water retaining plate, honeycomb activated carbon and air outlet guide layer; A spray assembly is arranged above the spray photocatalysis chamber.

As a further improvement of the utility model, a flame arrester is also connected to the third pipeline.

As a further improvement of the utility model, the regeneration device includes a catalytic bed and a mixed-flow bed; the catalytic bed and the mixed-flow bed are connected through a fourth pipeline.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The special high-efficiency adsorption and desorption system for spraying waste gas of the utility model can remove spraying waste gas through double filtration of high-efficiency pre-treatment box and high-efficiency honeycomb activated carbon box, which can not only effectively remove paint mist, but also effectively remove benzene, esters, For organic waste gases such as ketones, non-methane total hydrocarbons, VOC, etc., the use of high-efficiency honeycomb activated carbon can better absorb organic waste gas and make replacement more convenient. Adding a regeneration device can realize desorption while adsorbing, greatly increasing the service life and replacement cycle of honeycomb activated carbon , to save later operating costs for enterprises and reduce solid waste pollutants.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the utility model is further described:

Accompanying drawing 1 is the structural representation of the special high-efficiency adsorption-desorption system for spraying waste gas of the present utility model;

Accompanying drawing 2 is the structural representation of the efficient pretreatment box of the utility model;

Among them: 1. High-efficiency pre-treatment box; 2. High-efficiency honeycomb activated carbon box; 3. Centrifugal fan; 4. Regeneration device; 5. Electric valve; 6. PLC control cabinet; 7. The first pipeline and valve group; 8. The second Pipeline and valve group; 9. The third pipeline and electric valve group; 11. Box body; 12. Air inlet; 13. Air outlet; 14. Air inlet guide layer; 15. Glass fiber filter cotton; 16. Gear discharge Type low temperature plasma; 17. The first water retaining plate; 18. Water spray photocatalytic chamber; 19. The second water retaining plate; 20. Honeycomb activated carbon; Component; 41, catalytic bed; 42, mixed flow bed; 43, fourth pipeline.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in the accompanying drawing 1, a kind of high-efficiency adsorption and desorption system for spraying exhaust gas according to the utility model, including a high-efficiency pretreatment box 1, a high-efficiency honeycomb activated carbon box 2, a centrifugal fan 3, and a device for regenerating activated carbon in the activated carbon box Regenerating device 4, electric valve 5 and PLC control cabinet 6; The air outlet end of described high-efficiency pretreatment box 1 is connected with the inlet end of described high-efficiency honeycomb activated carbon box 1 through the first pipeline and valve group 7; The centrifugal blower 3 Connect with the gas outlet of the activated carbon box 2 through the second pipeline and the valve group 8; the regeneration device 4 is respectively connected with the activated carbon outlet and the activated carbon inlet of the high-efficiency honeycomb activated carbon box 2 through two groups of third pipelines and the electric valve group 9 ; The PLC control cabinet 6 is electrically connected to the electric valve 5 .

The high-efficiency pretreatment box 1, the high-efficiency honeycomb activated carbon box 2 and the regeneration device 4 have two groups respectively, which can achieve the purpose of removing organic waste gas and odor substances in the spraying waste gas more quickly and efficiently. The desorption ability is strong and the waste gas treatment effect is improved. At the same time prolong the service life of the product.

As shown in accompanying drawing 2, high-efficiency pretreatment box 1 comprises box body 11, and described box body 11 two sides opposite surfaces are respectively provided with air inlet 12, air outlet 13, and in described box body 11, from air inlet 12 to the air outlet 13 are provided with an air intake guide layer 14, a glass fiber filter cotton 15, a gear discharge low-temperature plasma 16, a first water retaining plate 17, a water spray photocatalytic chamber 18, and a second water retaining plate 19 , honeycomb activated carbon 20 and air outlet guide layer 21; a spray assembly 23 is provided above the water spray photocatalytic chamber 18. The organic waste gas generated in the production process first passes through the intake guide layer 14 to allow the waste gas to enter evenly, the glass fiber filter cotton 15 removes large particles, and then the waste gas without large particles enters the gear discharge low-temperature plasma 16 to break the molecular chain of the organic waste gas (Large molecules become smaller molecules), then enter the first water baffle 17, the first water baffle 17 can prevent subsequent water vapor from entering the low-temperature plasma 16, and then enter the water spray photocatalysis chamber 18, photocatalysis can also be cracked Some complicated organic waste gas and low-temperature plasma can be treated better at the same time; the particulate matter in the organic waste gas can be removed by spraying water through the spray assembly 23, and the pollutants covered on the photocatalytic UV lamp tube can also be removed), the second The water baffle 19 also prevents water vapor from entering the honeycomb activated carbon 20 at the rear end. The honeycomb activated carbon 20 can absorb some residual organic waste gas that cannot be treated by the front-end process. Finally, the air outlet guide layer 21 discharges the treated organic waste gas evenly, and the efficient pre-treatment box It has the characteristics of compact overall structure, small footprint, and low equipment operating cost. The purification method of the combined purifier is environmentally friendly and energy-saving, and the exhaust gas purification efficiency is high.

A flame arrester 22 is also connected to the third pipeline, and the flame arrester 22 can prevent the temperature of the hot air coming out of the catalytic bed from being too high to cause a fire

The regeneration device 4 includes a catalytic bed 41 and a mixed-flow bed 42; the catalytic bed 41 and the mixed-flow bed 42 are connected through a fourth pipeline 43, which has a simple structure and good regeneration effect of activated carbon.

The above are only specific application examples of the utility model, and do not constitute any limitation to the protection scope of the utility model. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the utility model.

Claims (5)

1. one kind spraying waste gas special efficient adsorption/desorption system, it is characterised in that: include efficient pre-treatment case, efficient cellular activated carbon case, centrifugal blower, for by the regenerating unit of regenerating active carbon, electrodynamic valve and PLC control cabinet in efficient cellular activated carbon case；The outlet side of described efficient pre-treatment case is connected with the inlet end of described efficient cellular activated carbon case by the first pipeline and valve group；Described centrifugal blower is connected with the outlet side of described efficient cellular activated carbon case by the second pipeline and valve group；Described regenerating unit by two group of the 3rd pipeline and electrodynamic valve group respectively activated carbon with described efficient cellular activated carbon case export and activated carbon import；Described PLC control cabinet is electrically connected with described electrodynamic valve.

Spraying waste gas special efficient adsorption/desorption system the most according to claim 1, it is characterised in that: described efficient pre-treatment case, efficient cellular activated carbon case and regenerating unit are respectively provided with two groups.

Spraying waste gas special efficient adsorption/desorption system the most according to claim 1, it is characterized in that: described efficient pre-treatment case includes casing, described casing both sides opposite face is respectively equipped with air inlet, gas outlet, is disposed with air inlet guide layer, glass fiber filter cotton, gear discharge type low temperature plasma, the first water fender, Water spray photocatalysis room, the second water fender, cellular activated carbon and guide layer of giving vent to anger from air inlet to gas outlet in described casing；It is arranged over spray assemblies in described Water spray photocatalysis room.

4. according to the spraying waste gas special efficient adsorption/desorption system described in any of the above-described claim, it is characterised in that: it is further connected with spark arrester on described 3rd pipeline.

Spraying waste gas special efficient adsorption/desorption system the most according to claim 4, it is characterised in that: described regenerating unit includes catalytic bed and mixed flow bed；Described catalytic bed and mixed flow bed are connected by the 4th pipeline.