CN114984678A - Waste gas collecting and treating device - Google Patents

Abstract

The invention provides a waste gas collecting and treating device which comprises a gas collecting hood, a waste gas treating device and a waste gas collecting pipe, wherein one end of the gas collecting hood is open, the gas collecting hood and the waste gas treating device are mutually communicated through the waste gas collecting pipe, the gas collecting hood is also provided with a sensor, a sealing layer, an air inlet and a filter screen, the sensor is arranged at the upper end and the lower end of the gas collecting hood, the sealing layer is arranged at the opening end of the gas collecting hood and used for preventing sprayed waste gas from overflowing from the inside of the gas collecting hood, the air inlet is arranged on the sealing layer and used for preventing the inside of the gas collecting hood from forming vacuum, and the filter screen is arranged inside the gas collecting hood and positioned at the connecting part of the gas collecting hood and the waste gas collecting pipe and used for filtering waste paint generated in vertical spraying. The invention can be matched with a robot specially used for painting, can prevent waste paint from overflowing and carry out harmless treatment on waste gas generated by painting when painting, and improves the environmental protection and the protection of painters.

Description

A waste gas collection and treatment device

technical field

The invention relates to the technical field of painting, in particular to a waste gas collection and treatment device.

Background technique

For the surface sandblasting, rust removal, painting and other operations of ships and large oil storage tanks, currently commonly used manual grinding, manual sandblasting, manual painting or painting with mechanical arms is carried out manually standing on the aerial work vehicle. The main disadvantages are as follows:

Damage to the environment: The traditional artificial high-altitude construction method cannot be equipped with environmental protection equipment, and a large amount of dust and waste sand are generated during sandblasting.

Damage to workers' health: The traditional artificial high-altitude construction method cannot be equipped with environmental protection equipment, and a large amount of dust is generated during sandblasting, which makes workers susceptible to silicosis; a large amount of organic waste gas generated during painting can directly damage the nervous system and cardiovascular system of workers. , seriously damage the health of workers.

SUMMARY OF THE INVENTION

The invention provides a waste gas collection and treatment device, which can be matched with a robot that specializes in painting, and can prevent waste paint from overflowing and perform harmless treatment on waste gas generated by painting during painting, thereby improving environmental protection and painting workers. protection of.

To achieve the above object, the present invention adopts the following technical solutions:

A waste gas collection and treatment device, comprising a gas collecting hood, a waste gas processing device and a waste gas collecting pipe, one end of the gas collecting hood is open to collect overspray paint mist and organic waste gas generated in a spraying process, and the gas collecting hood is connected to the waste gas. The treatment devices are communicated with each other through the exhaust gas collection pipe. The exhaust gas treatment device is used for harmless treatment of the exhaust gas and negative pressure suction for the exhaust gas collection pipe. The gas collection cover is also provided with a sensor, a sealing layer, an air inlet and a The filter screen, the sensors are arranged at the upper and lower ends of the gas collecting hood to sense the distance between the gas collecting hood and the sprayed facade, and the sealing layer is arranged at the open end of the gas collecting hood to prevent the sprayed exhaust gas from passing The inside of the gas collecting hood overflows, and the air inlet is arranged on the sealing layer to prevent a vacuum from forming inside the gas collecting hood. , used to filter waste paint produced when spraying facades.

Preferably, the exhaust gas treatment device includes a box body and a number of connecting pipes, and the box body is sequentially provided with a filter mechanism, an air hole baffle, an exhaust gas adsorption device, an air extraction mechanism, Desorption combustion mechanism, the air extraction mechanism is used to provide adsorption force for collecting exhaust gas and discharge the gas processed by the desorption combustion mechanism, the filter mechanism is used to filter the particulate matter in the exhaust gas, and the exhaust gas adsorption device is used to adsorb and purify the exhaust gas The vocs component in the desorption combustion mechanism is used to provide hot gas into the exhaust gas adsorption device and to perform combustion catalytic treatment on the exhaust gas, between the desorption combustion mechanism and the exhaust gas adsorption device and between the desorption combustion mechanism and the exhaust mechanism. They are all communicated through connecting pipes.

Preferably, there are at least one set of the filtering mechanisms, which are arranged in the box.

Preferably, the filtering mechanism includes a plate filter and a bag filter, the plate filter is connected to the inner wall of the box, and the bag filter is arranged on the plate filter.

Preferably, the suction mechanism includes a suction fan and a discharge pipe, one end of the discharge pipe is open, and the open end of the discharge pipe extends outward through the upper surface of the box body for discharging the gas extracted by the suction fan and the desorption combustion mechanism. The exhaust fan is arranged on the discharge pipe.

Preferably, the desorption combustion mechanism includes a combustion catalyst and an adsorption fan, and the combustion catalyst communicates with the exhaust gas adsorption device and the discharge pipeline through a connecting pipe, and is used for providing hot gas to the exhaust gas adsorption device and discharging the treated gas, so The adsorption fan is communicated with the exhaust gas adsorption device through a connecting pipe, and is used for adsorbing the desorbed gas in the exhaust gas adsorption device and transporting it to the combustion catalyst for treatment.

Preferably, the filter mesh is a silicon-free fiber mesh layer.

Preferably, the waste gas collection pipe is a soft pipe.

Preferably, a mobile trolley is also included, and the exhaust gas treatment device is arranged on the mobile trolley.

Preferably, a paint supply pump and a paint mixing device are provided on the mobile trolley.

Compared with the prior art, the beneficial effect of the present invention is that the exhaust gas treatment device provides negative pressure suction into the gas collecting hood, so that when painting in the gas collecting hood, the generated exhaust gas can be collected through the gas collecting hood and transported to the exhaust gas Harmless treatment is carried out in the treatment device; the sensor set on the gas collecting hood can accurately sense the distance between the gas collecting hood and the spraying facade, so that the distance between the gas collecting hood and the spraying facade can be effectively controlled, and further improve the The gas collecting effect of the gas collecting hood; the air inlet is provided on the sealing layer, which can avoid the formation of vacuum in the gas collecting hood, thereby affecting the collection of exhaust gas by the gas collecting hood.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

2 is a schematic diagram of the internal structure of the exhaust gas treatment device of the present invention;

FIG. 3 is a schematic diagram of the partial structure of A of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

It should be noted that when a part/part is referred to as being "disposed on" another part/part, it may be directly disposed on the other part/part or there may also be a central part/part. When a part/part is referred to as being "connected/coupled" to another part/part, it may be directly connected/coupled to the other part/part or there may also be an intervening part/part. The term "connected/coupled" as used herein may include electrical and/or mechanical physical connections/couplings. The term "comprising/comprising" as used herein refers to the presence of a feature, step or component/part, but does not preclude the presence or addition of one or more other features, steps or components/parts. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application.

Please refer to FIG. 1 to FIG. 3 , an exhaust gas collection and treatment device includes a gas collecting hood 1, an exhaust gas processing device 3 and an exhaust gas collecting pipe 2. One end of the gas collecting hood 1 is open to collect the overspray paint generated during the spraying process. mist and organic waste gas, the gas collecting hood 1 and the waste gas treatment device 3 are communicated with each other through the waste gas collection pipe 2, and the waste gas treatment device 3 is used to carry out harmless treatment of the waste gas and give negative pressure suction to the waste gas collection pipe 2. A sensor 4, a sealing layer 5, an air inlet 6 and a filter screen 7 are also provided. The sensor 4 is arranged at the upper and lower ends of the gas collecting hood 1 to sense the distance between the gas collecting hood 1 and the sprayed facade, so that the More precise control of the distance between the gas collecting hood 1 and the spraying facade, and the distance between the gas collecting hood 1 and the spraying facade is preferably controlled at 5-20mm, preferably 10mm, and the sealing layer 5 is arranged on the open end of the gas collecting hood 1 , used to prevent the sprayed exhaust gas from overflowing from the inside of the gas collecting hood 1, the air inlet 6 is arranged on the sealing layer 5 to prevent a vacuum from forming inside the gas collecting hood 1, the air inlet 6 is a labyrinth air inlet, its Distributed on the sealing layer 5, the filter screen 7 is arranged inside the gas collecting hood 1 and is located at the connection between the gas collecting hood 1 and the exhaust gas collection pipe 2, the filter screen 7 is a silicon-free fiber mesh layer, which is used for filtering and spraying the facade. The generated waste paint can prevent the waste paint from accumulating in the exhaust gas collection pipe 2, thereby affecting the use.

In specific use, the gas collecting hood 1 can cooperate with a painting robot or manipulator to set the robot or manipulator in the gas collecting hood 1 to perform the painting operation, and the gas collecting hood 1 is controlled by the information sensed by the sensor 4 and is closely related to the spraying. The distance between the façades can prevent full closure or too large distance gaps, which will affect the collection of exhaust gas. The exhaust gas collected by the gas collecting hood 1 is filtered through the filter screen 7 to filter out the waste paint mixed with the exhaust gas, and then enters the exhaust gas through the exhaust gas collection pipe 2. The innocuous treatment and discharge are performed in the treatment device 3 , and the negative pressure suction of the gas collecting hood 1 is provided by the exhaust gas treatment device 3 .

The waste gas treatment device 3 includes a box body 31 and a number of connecting pipes 32. The box body 31 is provided with a filter mechanism 33, an air hole baffle 34, an exhaust gas adsorption device 35, Exhaust mechanism 36, desorption combustion mechanism 37, exhaust mechanism 36 is used to provide adsorption force for collecting exhaust gas and discharge gas processed by desorption combustion mechanism 37, filter mechanism 33 is used to filter particulate matter in exhaust gas, exhaust gas adsorption device 35 is used for The vocs components in the exhaust gas are adsorbed and purified, and the desorption combustion mechanism 37 is used to provide hot gas into the exhaust gas adsorption device 35 and to carry out combustion and catalytic treatment of the exhaust gas. The air extraction mechanisms 36 are all communicated with each other through the connecting pipe 32 .

During specific work, the exhaust air mechanism 36 provides suction to suck the exhaust gas into the box 31. The exhaust gas first passes through the filter mechanism 33 to adsorb the particulate matter, and then the exhaust gas enters the exhaust gas adsorption device 35 for adsorption and purification. The exhaust gas adsorption device 35 is: The known technology is a zeolite runner device or an activated carbon adsorption device, which will not be repeated here. The desorption combustion mechanism 37 transports hot gas of about 200 degrees Celsius through the connecting pipe 32 into the exhaust gas adsorption device 35, so that the exhaust gas adsorption device 35 The VOCS components are desorbed, and the VOCS components enter into the desorption combustion mechanism 37 through another connecting pipe 32 to be burned and catalyzed into harmless carbon dioxide and water, and then transported to the exhaust mechanism 36 through the connecting pipe 32 for discharge. Harmful treatment and discharge, improve environmental protection.

The filtering mechanism 33 has at least one group, which is arranged in the box body 31, and multi-stage filtering can be set as required. The filtering mechanism 33 includes a plate filter 331 and a bag filter 332 . The plate filter 331 is connected to the inner wall of the box body 31 , and the bag filter 332 is arranged on the plate filter 331 .

The exhaust mechanism 36 includes an exhaust fan 362 and a discharge pipe 361. One end of the exhaust pipe 361 is open, and the open end of the exhaust pipe 361 extends outward through the upper surface of the box body 31 for discharging the gas extracted by the exhaust fan 362 and the desorption combustion mechanism 37. The exhaust fan 362 is arranged on the discharge pipe 361. During operation, the exhaust fan 362 discharges the extracted gas through the discharge pipe 361 .

The desorption combustion mechanism 37 includes a combustion catalyst 371 and an adsorption fan 372. The combustion catalyst 371 communicates with the exhaust gas adsorption device 35 and the discharge pipe 361 through the connecting pipe 32, and is used for providing hot gas to the exhaust gas adsorption device 35 and discharging the treated gas, The adsorption fan 372 communicates with the exhaust gas adsorption device 35 through the connecting pipe 32 , and is used for adsorbing the desorbed gas in the exhaust gas adsorption device 35 and transporting it to the combustion catalyst 371 for processing. During specific work, the connecting pipe 32 can be divided into a hot gas pipe, an adsorption pipe and a discharge pipe. The combustion catalyst 371 transports heat through the hot gas pipe to the exhaust gas adsorption device 35 to desorb the VOCS components, and then the adsorption fan 372 passes the adsorption The pipe adsorbs and transports the VOCS components to the combustion catalyst 371 for catalysis, and the catalyzed gas is transported to the exhaust pipe 361 through the exhaust pipe for discharge.

The exhaust gas collection pipe 2 is a soft pipe, and also includes a mobile trolley 8. The exhaust gas treatment device 3 is arranged on the mobile trolley 8 and can be moved conveniently. The moving trolley 8 is provided with a paint supply pump 9 and a paint mixing device 10, and the paint mixing device 10 is a paint mixing tank or other paint mixing equipment.

The exhaust gas treatment device 3 of the present invention provides negative pressure suction into the gas collecting hood 1, so that when painting in the gas collecting hood 1, the generated exhaust gas can be collected through the gas collecting hood 1 and transported to the exhaust gas treatment device 3 for harmless treatment. The sensor 4 set on the gas collecting hood 1 can accurately sense the distance between the gas collecting hood 1 and the spraying facade, so that the distance between the gas collecting hood 1 and the spraying facade can be effectively controlled, and further improve the gas collecting The air collection effect of the cover 1; the air inlet 6 is provided on the sealing layer 5, which can avoid the formation of a vacuum in the gas collection cover 1, thereby affecting the collection of exhaust gas by the gas collection cover 1.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (10)

1. A waste gas collection and treatment device is characterized in that, comprising a gas collecting hood, a waste gas treatment device and a waste gas collecting pipe, and one end of the gas collecting hood is open for collecting overspray paint mist and organic waste gas generated in the spraying process, so The gas collecting hood and the exhaust gas treatment device are communicated with each other through the exhaust gas collection pipe. The exhaust gas treatment device is used to perform harmless treatment of the exhaust gas and give negative pressure suction to the exhaust gas collection pipe. The gas collecting cover is also provided with a sensor, a seal layer, air inlet and filter screen, the sensors are arranged at the upper and lower ends of the gas collecting hood, and are used to sense the distance between the gas collecting hood and the sprayed facade, and the sealing layer is arranged on the open end of the gas collecting hood. In order to prevent the sprayed exhaust gas from overflowing from the inside of the collecting hood, the air inlet is arranged on the sealing layer to prevent a vacuum from forming inside the collecting hood, and the filter screen is arranged inside the collecting hood and is located between the collecting hood and the air collecting hood. The connection of the exhaust gas collection pipe is used to filter the waste paint generated when the facade is sprayed. 2 . The exhaust gas collection and treatment device according to claim 1 , wherein the exhaust gas treatment device comprises a box body and a plurality of connecting pipes, and the box body is arranged in sequence from the connection end with the exhaust gas collection pipe to the rear end of the box body. 3 . There are filter mechanisms, stomata separators, exhaust gas adsorption devices, air extraction mechanisms, and desorption combustion mechanisms. The ventilation mechanisms are used to provide the adsorption force for collecting exhaust gas and to discharge the gas processed by the desorption combustion mechanism. The filter mechanism is used to filter The particulate matter in the exhaust gas, the exhaust gas adsorption device is used to adsorb and purify the vocs components in the exhaust gas, and the desorption combustion mechanism is used to provide hot gas into the exhaust gas adsorption device and to perform combustion and catalytic treatment on the exhaust gas. The exhaust gas adsorption devices and the desorption combustion mechanism and the air extraction mechanism are all communicated through connecting pipes. 3 . The exhaust gas collection and treatment device according to claim 2 , wherein there are at least one set of the filter mechanisms, which are arranged in the box. 4 . 4. The exhaust gas collection and treatment device according to claim 2, wherein the filter mechanism comprises a plate filter and a bag filter, the plate filter is connected to the inner wall of the box, and the bag filter is provided with on the plate filter. 5 . The exhaust gas collection and treatment device according to claim 4 , wherein the exhaust air mechanism comprises an exhaust fan and a discharge pipe, one end of the discharge pipe is open, and the open end of the discharge pipe extends outward through the upper surface of the box body. 6 . , which is used to discharge the gas extracted by the exhaust fan and the gas exhausted by the desorption combustion mechanism, and the exhaust fan is arranged on the exhaust pipe. 6 . The exhaust gas collection and treatment device according to claim 5 , wherein the desorption combustion mechanism comprises a combustion catalyst and an adsorption fan, and the combustion catalyst is communicated with the exhaust gas adsorption device and the exhaust pipe through a connecting pipe, and is connected with the exhaust gas adsorption device and the discharge pipe. In order to provide hot gas to the exhaust gas adsorption device and discharge the treated gas, the adsorption fan communicates with the exhaust gas adsorption device through a connecting pipe, and is used for adsorbing the desorbed gas in the exhaust gas adsorption device and transporting it to the combustion catalyst for treatment. 7 . The exhaust gas collection and treatment device according to claim 1 , wherein the filter mesh is a silicon-free fiber mesh layer. 8 . 8 . The exhaust gas collection and treatment device according to claim 1 , wherein the exhaust gas collection pipe is a soft pipe. 9 . 9 . The exhaust gas collection and treatment device according to claim 1 , further comprising a mobile trolley, and the exhaust gas treatment device is arranged on the mobile trolley. 10 . 10 . The exhaust gas collection and treatment device according to claim 9 , wherein a paint supply pump and a paint adjusting device are arranged on the mobile trolley. 11 .

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