Spraying paint powder filtering device

Abstract

The invention discloses a spraying paint powder filtering device in the technical field of filtering equipment, the spraying paint powder filtering device comprises a paint spraying room and a filtering mechanism, the filtering mechanism comprises a filtering box, an exhaust hole is formed in the top of the filtering box, the filtering box is filled with clear water, an air inlet hole is formed in the bottom of the pool wall of the filtering box, and an air inlet pipe fixedly communicates with the air inlet hole; the end, away from the filter box, of the air inlet pipe communicates with the paint spraying room, a draught fan is arranged on the air inlet pipe, and the draught fan is used for forming negative pressure in the air inlet pipe to blow paint spraying waste gas in the paint spraying room into the filter box through the air inlet pipe. According to the scheme, the problem that paint waste gas generated during paint spraying pollutes air is solved.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, and in particular to a spray paint powder filtering device. Background Art

[0002] Paint is a chemical mixture coating that can firmly cover the surface of an object for protection, decoration and marking, and contains organic solvents.

[0003] During the painting process, some of the film-forming substances adhere to the surface of the painted object, but most of the film-forming substances will escape into the air and the ground, forming paint mist particles mainly composed of film-forming substances. In this process, organic solvents will not adhere to the surface of the painted object with the film-forming substances, but will be completely released during the painting and curing process to form paint exhaust gas. The paint exhaust gas floating in the air will pollute the environment, affect the air quality, and affect the health of people around. Secondly, the paint exhaust gas floating in the air is difficult to collect and filter and purify. Therefore, there is an urgent need for a filtering device for filtering paint exhaust gas to prevent paint exhaust gas from polluting the air. Summary of the invention

[0004] The present invention aims to provide a paint spraying waste filtering device to solve the problem of air pollution caused by paint waste gas generated during paint spraying.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for filtering paint residues, comprising a paint spraying room and a filtering mechanism, wherein the filtering mechanism comprises a filter box, an exhaust hole is provided on the top of the filter box, the filter box is filled with clean water, an air inlet hole is provided on the bottom of the pool wall of the filter box, an air inlet pipe is fixedly connected to the air inlet hole, an end of the air inlet pipe away from the filter box is connected to the paint spraying room, a fan is provided on the air inlet pipe, and the fan is used to form a negative pressure in the air inlet pipe to blow the paint exhaust gas in the paint spraying room into the filter box through the air inlet pipe.

[0006] Furthermore, the air inlet pipe is an "S"-shaped air inlet pipe, and the air inlet pipe is arranged in a vertical state.

[0007] Furthermore, a plurality of "human"-shaped partitions are fixedly connected to the upper part of the filter box, and a plurality of vertical holes vertically penetrating the partitions are arranged at intervals on the partitions, and the plurality of partitions are distributed in a rectangular array.

[0008] Furthermore, the fan is a centrifugal fan.

[0009] Furthermore, a rubber ring is installed at the connection between the air inlet pipe and the paint spraying room.

[0010] Furthermore, the filter box wall is provided with two connection holes, one of which is located at the bottom of the filter box wall and the other is located directly above the connection hole. The two connection holes are connected to the same water level pipe, which is made of transparent material.

[0011] Beneficial effects of the present invention:

[0012] 1. This solution allows spraying in a paint spraying room, and then the fan is used to suck the paint exhaust gas in the paint spraying room into the air inlet pipe, and then the paint exhaust gas is blown into the filter box through the air inlet pipe, so that the paint exhaust gas is directly in contact with clean water, and then the paint particles in the paint exhaust gas are dissolved in the water or adsorbed by the clean water and cannot float up with the gas, thereby achieving the effect of effectively filtering the paint exhaust gas and avoiding the problem of paint exhaust gas polluting the air.

[0013] 2. This solution is used to filter the oil at the end. After filtering, the clean water in the filter box can be replaced to filter again. It has low cost, simple structure and is not prone to failure.

[0014] 3. By setting a rubber ring between the paint spray room and the air inlet pipe, the deformation ability of rubber is used to enhance the sealing of the connection between the paint spray room and the air inlet pipe, so as to avoid leakage of paint exhaust gas from the connection between the paint spray room and the air inlet pipe. At the same time, the deformation ability of the rubber ring is used to reduce the vibration of the air inlet pipe caused by the fan when running. First, the service life of the connection between the air inlet pipe and the paint spray room is extended; second, the rubber ring is in soft contact with the paint spray room and the air inlet pipe, which greatly reduces the noise caused by the vibration of the air inlet pipe when the fan is allowed to run. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an embodiment of a spray paint powder filtering device of the present invention;

[0016] Figure 2 for Figure 1 A cross-sectional view of the front face of the middle filter box;

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the middle partition. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The reference numerals in the drawings of the specification include: paint spraying room 1, centrifugal fan 2, air inlet pipe 3, water level pipe 4, filter box 5, air outlet pipe 6, partition 7, vertical hole 701, water inlet pipe 8, baffle 9, bubble hole 10.

[0020] The embodiment is basically as shown in the attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown:

[0021] A paint spraying powder filtering device comprises a paint spraying room 1 and a filtering mechanism, the filtering mechanism comprises a filtering box 5, the top of the box wall of the filtering box 5 is connected with a water inlet pipe 8, the box wall of the filtering box 5 is provided with two connecting holes, one of the two connecting holes is located at the bottom of the box wall of the filtering box 5, and the other is located directly above the connecting hole, the two connecting holes are connected with the same water level pipe 4, and the water level pipe 4 is a water level pipe 4 made of transparent material. An exhaust hole is provided on the top of the filter box 5, and a vertical air outlet pipe 6 is fixedly connected to the exhaust hole. A plurality of "human" shaped partitions 7 are fixedly connected to the upper part of the filter box 5. A plurality of vertical holes 701 vertically penetrating the partitions 7 are arranged at intervals on the partitions 7. The plurality of partitions 7 are distributed in a rectangular array. The filter box 5 is filled with clean water. An air inlet is provided at the bottom of the pool wall of the filter box 5. A baffle 9 is fixedly connected to the air inlet, and a plurality of bubble holes 10 are evenly distributed on the baffle 9. An "S"-shaped air inlet pipe 3 that first extends upward and then bends downward is fixedly connected to the air inlet. A rubber ring is connected to one end of the air inlet pipe 3 away from the filter box 5, and the side of the rubber ring facing away from the air inlet pipe 3 is connected to the inside of the paint spraying room 1. A centrifugal fan 2 is provided on the air inlet pipe 3. The centrifugal fan 2 is used to form a negative pressure in the air inlet pipe 3 to blow the paint exhaust gas in the paint spraying room 1 into the filter box 5 through the air inlet pipe 3.

[0022] The specific implementation process is as follows:

[0023] During use, paint is sprayed in the paint spraying room 1. When it is necessary to filter the paint exhaust gas, the centrifugal fan 2 is started. When the centrifugal fan 2 is running, the air in the air inlet pipe 3 flows from the direction of the paint spraying room 1 to the direction of the filter box 5. When the air in the air inlet pipe 3 flows, a negative pressure is formed in the pipe, thereby absorbing the paint exhaust gas in the paint spraying room 1. The paint exhaust gas flows through the rubber ring and then flows into the air inlet hole along the air inlet pipe 3. It is decomposed into fine bubbles through the bubble holes 10 on the partition 7 fixed to the air inlet hole and flows into the filter box 5 and contacts with the clean water in the filter box 5. The paint particles in the paint exhaust gas are dissolved in the water or adsorbed by the clean water and cannot float with the gas, thereby achieving the effect of filtering the paint exhaust gas. The filtered gas floats in the clean water, then leaves the water surface, and is discharged from the exhaust hole on the top of the filter box 5. When the paint waste gas is introduced into the clean water of the filter box 5, a large number of bubbles will be generated. As the bubbles spread upward, they will come into contact with the "human" shaped partition 7 and be blocked by the partition 7 until the bubbles reach their limit and are squeezed and burst. At this time, the gas filtered by the clean water flows along the gap between the partitions 7 and 7 to the top of the filter box 5, and the bubbles staying on the lower surface of the partition 7 will float to the top of the partition 7 through the vertical hole 701 of the partition 7 under the action of buoyancy.

Claims

1. A spray paint powder filtering device, characterized in that: It includes a paint spraying room and a filtering mechanism, wherein the filtering mechanism includes a filter box, an exhaust hole is provided on the top of the filter box, the filter box is filled with clean water, an air inlet hole is provided on the bottom of the pool wall of the filter box, an air inlet pipe is fixedly connected to the air inlet hole, an end of the air inlet pipe away from the filter box is connected to the paint spraying room, a fan is provided on the air inlet pipe, and the fan is used to form a negative pressure in the air inlet pipe to blow the paint exhaust gas in the paint spraying room into the filter box through the air inlet pipe.

2. A spray paint powder filtering device according to claim 1, characterized in that: The air inlet pipe is an "S"-shaped air inlet pipe, and the air inlet pipe is arranged in a vertical state.

3. A spray paint powder filtering device according to claim 2, characterized in that: A plurality of "human" shaped partitions are fixedly connected to the upper part of the filter box, and a plurality of vertical holes vertically penetrating the partitions are arranged at intervals on the partitions, and the plurality of partitions are distributed in a rectangular array.

4. A spray paint powder filtering device according to claim 3, characterized in that: The fan is a centrifugal fan.

5. A spray paint powder filtering device according to claim 4, characterized in that: A rubber ring is installed at the connection between the air inlet pipe and the paint spraying room.

6. A spray paint powder filtering device according to claim 5, characterized in that: The filter box wall is provided with two connection holes, one of which is located at the bottom of the filter box wall and the other is located directly above the connection hole. The two connection holes are connected with the same water level pipe, which is made of transparent material.

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