Coating waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas treatment equipment, and discloses a coating waste gas treatment device which comprises a spraying workshop, the first gas bin is mounted above the painting workshop; the first air bin is provided with a lifting structure. The movable end of the lifting structure is provided with a first filter screen. The first gas bin comprises a spraying chamber and a gas inlet chamber, and the first filter screen is arranged in the gas inlet chamber; the second air bin is installed on the side wall of the spraying workshop, and a second filter screen is installed on the side, facing the spraying workshop, of the second air bin; the air inlet end of the air extractor is connected with air supply equipment, and the air outlet end is communicated with the spraying chamber through an air supply pipe; wherein the air inlet chamber is communicated with the air supply pipe through a first pipeline, and the second air bin is communicated with the air supply pipe through a second pipeline. The coating waste gas treatment device is small in equipment size, the filter screen is easy to replace, and the waste gas suction effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, and in particular to a coating waste gas treatment device. Background Technology

[0002] Many workpieces require painting after machining, which generates a large amount of waste gas. Direct emission of this waste gas can seriously affect air quality, thus necessitating its treatment. Currently, most small-scale painting workshops suffer from problems such as large equipment size, difficulty in replacing filters, and poor waste gas extraction efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a coating exhaust gas treatment device, which is compact in size, easy to replace the filter, and has a good exhaust gas extraction effect.

[0004] The coating exhaust gas treatment device according to an embodiment of the present utility model includes:

[0005] Spray painting workshop;

[0006] The first air chamber is installed above the spraying workshop; the first air chamber is equipped with a lifting structure, and a first filter screen is installed at the movable end of the lifting structure; the first air chamber includes a spray chamber and an air inlet chamber, and the first filter screen is disposed in the air inlet chamber.

[0007] The second air chamber is installed on the side wall of the spraying workshop, and a second filter screen is installed on the side of the second air chamber facing the spraying workshop;

[0008] An air extractor has an air inlet connected to an air supply device and an air outlet connected to the spray chamber via an air supply pipe.

[0009] The air intake chamber is connected to the air supply pipe via a first pipe, and the second air chamber is connected to the air supply pipe via a second pipe.

[0010] The coating exhaust gas treatment device according to the embodiments of this utility model has at least the following beneficial effects:

[0011] By connecting the first filter screen to the movable end of the lifting structure, the lifting structure can drive the first filter screen to rise and fall, thereby facilitating the cleaning or replacement of the first filter screen; the second air chamber is set on the side wall of the spraying workshop, which also facilitates the cleaning or replacement of the second filter screen; air chambers are installed on the top and side walls of the spraying workshop for exhaust gas extraction, which improves the exhaust gas extraction effect; the exhaust gas treatment device in this embodiment has only one exhaust fan, and the first air chamber integrates the spray chamber and the air inlet chamber, reducing the number of devices and increasing the integration of devices, which facilitates the reduction of device size.

[0012] According to some embodiments of the present invention, a partition is installed in the first air chamber, and the air inlet chamber and the spray chamber are separated by the partition; a limiting structure is installed on the partition, and the movable end of the lifting structure passes through the limiting structure. The limiting structure can abut against the first filter screen to limit the end point of the first filter screen's travel.

[0013] According to some embodiments of the present invention, the spray chamber is disposed above the air inlet chamber, the fixed end of the lifting structure is installed in the spray chamber, and the movable end of the lifting structure is disposed in the air inlet chamber.

[0014] According to some embodiments of the present invention, the spray chamber is equipped with a spray plate, which is rotatably installed inside the spray chamber about its own axis.

[0015] According to some embodiments of the present invention, the first filter screen includes a connecting area and an installation area, the connecting area being used to connect with the lifting structure, and the installation area being used to install the filter element; the installation area is disposed on the outer periphery of the connecting area.

[0016] According to some embodiments of the present invention, the installation area extends toward the spraying workshop along the radial direction of the first filter screen.

[0017] According to some embodiments of the present invention, the first filter screen is detachably connected to the lifting structure by fasteners, and / or the second filter screen is detachably connected to the second air chamber.

[0018] According to some embodiments of the present invention, the first air chamber is equipped with a water outlet pipe, which is connected to the spray chamber.

[0019] According to some embodiments of this utility model, a one-way valve is installed at the connection between the second pipe and the gas supply pipe, and the first pipe is connected to the gas supply pipe through the second pipe.

[0020] According to some embodiments of the present invention, the waste gas treatment device further includes a drying device and an adsorption device. The drying device is connected to the spray chamber and is used to dry the waste gas after spraying. The adsorption device is connected to the drying device and is used to adsorb the dried waste gas.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0025] Icon labels:

[0026] Spray painting workshop 100;

[0027] First air chamber 200, spray chamber 201, air inlet chamber 202, lifting structure 210, first filter screen 220, connecting area 221, installation area 222, partition 230, limiting structure 231, spray plate 240, water outlet pipe 250, first pipeline 260;

[0028] Second air chamber 300, second filter screen 310, second pipeline 320, one-way valve 321;

[0029] 400 air extraction machine, 410 air supply pipe;

[0030] Drying equipment 500;

[0031] Adsorption equipment 600. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] Reference Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a coating exhaust gas treatment device, including a spraying workshop 100, a first air chamber 200, a second air chamber 300, and an exhaust fan 400. The spraying workshop 100 is used for operators to perform spraying operations on workpieces. During spraying operations, a large amount of harmful exhaust gas is generated. When the concentration of harmful exhaust gas in the spraying workshop 100 exceeds a set value, it will not only affect the coating quality of the workpieces but also seriously damage the physical and mental health of the operators. Direct emission of harmful exhaust gas will also have a significant impact on the environment; therefore, it is necessary to treat the harmful exhaust gas. Typically, spraying workshops 100 are equipped with suction equipment to remove the harmful exhaust gas. The exhaust gas treatment device in this embodiment also includes a first air chamber 200 and a second air chamber 300 for suctioning the harmful exhaust gas from the spraying workshop 100. (Refer to...) Figure 1 As shown, the first air chamber 200 is installed above the spray painting workshop 100, and the second air chamber 300 is installed on the side wall of the spray painting workshop 100. The exhaust fan 400 is used to create negative pressure in the first air chamber 200 and the second air chamber 300, so that the exhaust gas generated in the spray painting workshop 100 can be drawn away through the first air chamber 200 and the second air chamber 300. The first air chamber 200 and the second air chamber 300 are installed on the top and side wall of the spray painting workshop 100 respectively, which has a good exhaust gas extraction effect; only one exhaust fan 400 is needed, which reduces the number of equipment, facilitates the reduction of equipment size, and reduces maintenance costs.

[0037] Furthermore, refer to Figure 1 As shown, the first air chamber 200 in this embodiment includes a spray chamber 201 and an air inlet chamber 202. Harmful waste gas is drawn into the air inlet chamber 202 and the second air chamber 300, and then sent into the spray chamber 201 for spraying treatment. The spray chamber 201 is used to spray organic solvents to wash the waste gas, so as to remove most of the harmful substances in the waste gas. Both the spray chamber 201 and the air inlet chamber 202 are integrated into the first air chamber 200, which can improve the integration of the equipment and reduce the size of the equipment.

[0038] Reference Figure 1 As shown, the waste gas treatment device in this embodiment also includes a drying device 500 and an adsorption device 600. The drying device 500 is connected to the spray chamber 201 and is used to dry the waste gas after spraying. The adsorption device 600 is connected to the drying device 500 and is used to adsorb the dried waste gas. Activated carbon or other substances can be installed in the adsorption device 600. The drying device 500 can be based on existing technology and is not limited in this embodiment.

[0039] In the embodiments of this utility model, reference is made to Figure 1As shown, the first air chamber 200 is equipped with a lifting structure 210, and a first filter 220 is installed at the movable end of the lifting structure 210. The second air chamber 300 has a second filter 310 installed on the side facing the painting workshop 100. The first filter 220 is detachably connected to the movable end of the lifting structure 210, and the second filter 310 is detachably connected to the second air chamber 300, facilitating the replacement or cleaning of both filters. Since the first air chamber 200 is located at the top of the painting workshop 100, installing the first filter 220 at the movable end of the lifting structure 210 and driving it up and down via the lifting structure 210 facilitates the cleaning or replacement of the first filter 220. Similarly, the second air chamber 300, located on the side wall of the painting workshop 100, also facilitates the cleaning or replacement of the second filter 310.

[0040] In the embodiments of this utility model, reference is made to Figure 1 As shown, a partition 230 is installed inside the first air chamber 200, separating the air inlet chamber 202 and the spray chamber 201 to prevent them from communicating with each other. The spray chamber 201 is positioned above the air inlet chamber 202. The fixed end of the lifting structure 210 is located inside the spray chamber 201, while the movable end extends into the air inlet chamber 202. When the movable end of the lifting structure 210 is fully retracted, the first filter screen 220 is completely located inside the air inlet chamber 202, with its edge contacting the inner wall of the air inlet chamber 202. This ensures that exhaust gas must pass through the first filter screen 220 before entering the air inlet chamber 202. The fixed end of the lifting structure 210 does not participate in the spraying operation within the spray chamber 201, but it also does not affect the spraying operation within the spray chamber 201. The fixed end of the lifting structure 210 being located inside the spray chamber 201 effectively reduces the overall size of the equipment.

[0041] In an embodiment of this utility model, a limiting structure 231 is installed on the partition 230, and the movable end of the lifting structure 210 passes through the limiting structure 231. The limiting structure 231 can abut against the first filter screen 220 to limit the end of the first filter screen 220's travel. (Refer to...) Figure 2 As shown, when the first filter 220 rises to the position where it abuts against the limiting structure 231, the first filter 220 is completely located inside the air intake chamber 202. This ensures that all exhaust gas must pass through the first filter 220 before entering the air intake chamber 202, while also preventing the first filter 220 from excessively occupying the space inside the air intake chamber 202.

[0042] In an embodiment of this utility model, the first filter 220 includes a connecting region 221 and an installation region 222. The connecting region 221 is used to connect with the lifting structure 210, and the installation region 222 is used to install the filter element. The installation region 222 is disposed on the outer periphery of the connecting region 221. Specifically, refer to... Figure 1 , Figure 2 As shown, the connecting area 221 is located at the center of the first filter screen 220 and is connected to the movable end of the lifting structure 210 by fasteners such as bolts; the connecting area 221 is a solid structure and the mounting area 222 is a hollow structure to facilitate the installation of the filter element in the mounting area 222.

[0043] Furthermore, along the radial direction of the first filter screen 220, the installation area 222 extends toward the spraying workshop 100. That is, the first filter screen 220 in this embodiment is frustum-shaped, and the diameter of the top is smaller than the diameter of the bottom. This design can increase the filtration area of ​​the first filter screen 220 and improve the unit air intake and filtration effect.

[0044] In an embodiment of this utility model, a spray disc 240 is installed in the spray chamber 201, and the spray disc 240 is rotatably installed within the spray chamber 201 around its own axis. Specifically, refer to... Figure 1 As shown, the spray plate 240 has multiple spray heads on the side facing the spray chamber 201, and the spray heads spray organic solvent into the spray chamber 201. The spray plate 240 is configured to rotate around its own axis, which can reduce the probability of clogging of the spray heads near the exhaust gas inlet and outlet. The spray rate and spray pressure of the spray heads can be set according to actual conditions, and are not limited in this embodiment.

[0045] In an embodiment of this utility model, the first air chamber 200 is equipped with a water outlet pipe 250, which is connected to the spray chamber 201. Specifically, refer to... Figure 1 As shown, the water outlet pipe 250 is located above the partition plate, but at the bottom of the spray chamber 201, so that the spray water can flow out in time.

[0046] It should be noted that when spraying in the spray chamber 201, the water level at the bottom of the spray chamber 201 must always be higher than that in the outlet pipe 250 to prevent exhaust gas from being discharged through the outlet pipe 250.

[0047] In an embodiment of this utility model, the air inlet of the vacuum pump 400 is connected to an air supply device, and the air outlet is connected to the spray chamber 201 via an air supply pipe 410; the air inlet chamber 202 is connected to the air supply pipe 410 via a first pipe 260, and the second air chamber 300 is connected to the air supply pipe 410 via a second pipe 320. Specifically, refer to... Figure 1As shown, the gas supply equipment is used to supply gas to the exhaust fan 400 for neutralizing harmful substances in the exhaust gas. The high flow velocity in the gas supply pipe 410 will cause the gas pressure in the gas supply pipe 410 to drop, so that the exhaust gas in the inlet chamber 202 can enter the gas supply pipe 410 through the first pipe 260, and the exhaust gas in the second gas chamber 300 can enter the gas supply pipe 410 through the second pipe 320. At the same time, since the gas in the first pipe 260 and the second pipe 320 enters the gas supply pipe 410 by pressure, the gas in the first pipe 260 and the second pipe 320 cannot enter the exhaust fan 400 in reverse and damage the exhaust fan 400, or escape from the exhaust fan 400, effectively improving the service life of the exhaust fan 400 and reducing the impact on the environment.

[0048] In an embodiment of this utility model, a one-way valve 321 is installed at the connection between the second pipe 320 and the gas supply pipe 410, and the first pipe 260 is connected to the gas supply pipe 410 through the second pipe 320. Specifically, refer to... Figure 1 As shown, the one-way valve 321 ensures that the gas in the gas supply pipe 410 enters the first pipe 260 and the second pipe 320; the first pipe 260 is connected to the second pipe 320, so only the one-way valve 321 needs to be installed in the second pipe 320, which reduces the number of one-way valves 321 and reduces maintenance costs.

[0049] It is conceivable that the first pipe 260 and the second pipe 320 could be connected to different positions of the gas supply pipe 410, and that a one-way valve 321 could be installed in both the first pipe 260 and the second pipe 320.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A coating waste gas treatment device, characterized in that, include: Spray painting workshop; The first air chamber is installed above the painting workshop; The first air chamber is equipped with a lifting structure, and a first filter screen is installed on the movable end of the lifting structure; the first air chamber includes a spray chamber and an air inlet chamber, and the first filter screen is disposed in the air inlet chamber. The second air chamber is installed on the side wall of the spraying workshop, and a second filter screen is installed on the side of the second air chamber facing the spraying workshop; An air extractor has an air inlet connected to an air supply device and an air outlet connected to the spray chamber via an air supply pipe. The air intake chamber is connected to the air supply pipe via a first pipe, and the second air chamber is connected to the air supply pipe via a second pipe.

2. The coating waste gas treatment device according to claim 1, characterized in that: A partition is installed inside the first air chamber, and the air inlet chamber and the spray chamber are separated by the partition. A limiting structure is installed on the partition, and the movable end of the lifting structure passes through the limiting structure. The limiting structure can abut against the first filter screen to limit the end of the first filter screen's travel.

3. The coating exhaust gas treatment device according to claim 1, characterized in that: The spray chamber is located above the air inlet chamber, the fixed end of the lifting structure is installed in the spray chamber, and the movable end of the lifting structure is located in the air inlet chamber.

4. The coating exhaust gas treatment device according to claim 1, characterized in that: The spray chamber is equipped with a spray plate, which is rotatably mounted inside the spray chamber about its own axis.

5. The coating waste gas treatment device according to claim 1, characterized in that: The first filter screen includes a connecting area and an installation area. The connecting area is used to connect with the lifting structure, and the installation area is used to install the filter element. The installation area is located on the outer periphery of the connecting area.

6. The coating exhaust gas treatment device according to claim 5, characterized in that: Along the radial direction of the first filter, the installation area extends toward the direction of the painting workshop.

7. The coating exhaust gas treatment device according to claim 1, characterized in that: The first filter screen is detachably connected to the lifting structure via fasteners, and / or the second filter screen is detachably connected to the second air chamber.

8. The coating exhaust gas treatment device according to claim 1, characterized in that: The first air chamber is equipped with a water outlet pipe, which is connected to the spray chamber.

9. The coating exhaust gas treatment device according to claim 1, characterized in that: A one-way valve is installed at the connection between the second pipe and the gas supply pipe, and the first pipe is connected to the gas supply pipe through the second pipe.

10. The coating exhaust gas treatment device according to claim 1, characterized in that: The waste gas treatment device further includes a drying device and an adsorption device. The drying device is connected to the spray chamber and is used to dry the waste gas after spraying. The adsorption device is connected to the drying device and is used to adsorb the dried waste gas.

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