Circuit board etching white smoke waste gas removal filter

Abstract

The utility model relates to the technical field of circuit board etching, and discloses a circuit board etching white smoke waste gas removal filter which comprises a waste gas filter cartridge, a top opening is formed in the top end of the waste gas filter cartridge, a waste gas external pipe is communicated with the top opening, a bottom water outlet is formed in the bottom of the waste gas filter cartridge, and a water outlet is formed in the bottom of the waste gas filter cartridge. A waste gas spray removal assembly used for waste gas treatment is arranged on the waste gas filter cartridge, the waste gas spray removal assembly is arranged on the waste gas filter cartridge, the top space of the waste gas filter cartridge is larger than the bottom space of the waste gas filter cartridge, and the waste gas spray removal assembly is arranged on the waste gas filter cartridge. The high-speed flowing white smoke entering through the top of the waste gas filter cartridge can be decelerated through a large space at the top of the waste gas filter cartridge, so that the effect of efficiently removing the white smoke is achieved, the white smoke generated in the etching process of the circuit board is effectively prevented from drifting into air, and the service life of the circuit board is prolonged. A safer working environment is provided for workers, and air pollution is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board etching, in particular to a filter for removing white smoke waste gas in circuit board etching. Background Art

[0002] With the popularization of electronic products, the market demand for circuit boards is increasing. However, waste gas is always generated in the production of circuit boards. For example, an important part in the production of circuit boards is to weld the circuit boards, and a large amount of waste gas containing solid particles such as lead, tin, MnO2 and other harmful gases is generated during the welding process. In addition, the waste gas in the production of circuit boards also includes harmful gases such as VOC generated during the printing process of the circuit boards.

[0003] Since certain waste gas white smoke will be generated during the etching of the existing circuit boards, and the main substance of the white smoke is ammonium chloride particles formed by the mixture of hydrochloric acid and ammonia. If these harmful gases are not reasonably treated and dispersed into the air, it will have a greater impact on the physical health of the workers during operation, and at the same time will also cause pollution to the air environment. Therefore, it is of great significance to treat the waste gas generated during the production process of circuit boards. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a filter for removing white smoke waste gas in circuit board etching, which solves the problem that certain waste gas white smoke will be generated during the etching of the existing circuit boards, and the main substance of the white smoke is ammonium chloride particles formed by the mixture of hydrochloric acid and ammonia. If these harmful gases are not reasonably treated and dispersed into the air, it will have a greater impact on the physical health of the workers during operation, and at the same time will also cause pollution to the air environment. Therefore, it is of great significance to treat the waste gas generated during the production process of circuit boards.

[0005] The utility model provides the following technical scheme: a filter for removing white smoke waste gas in circuit board etching, including a waste gas filter cylinder, a top opening is arranged at the top end of the waste gas filter cylinder, a waste gas external connection pipe is communicated with the top opening, a bottom water outlet is arranged at the bottom of the waste gas filter cylinder, and a waste gas spray removal component for waste gas treatment is arranged on the waste gas filter cylinder;

[0006] The waste gas spray removal component includes a water delivery pipe uniformly arranged around the outer side of the waste gas filter cylinder. A number of water mist nozzles are uniformly arranged in the waste gas filter cylinder. The water mist nozzles are communicated with the water delivery pipe through the arranged connecting pipes. The water delivery pipe and the waste gas filter cylinder are fixedly connected through a number of pipe fixing blocks. The top of the water delivery pipe is provided with a top connecting block. A limit jack is opened in the middle of the top connecting block. The top of the water delivery pipe penetrates and is inserted into the limit jack. An inner wall moving groove is opened on the inner wall of the limit jack. A contact connecting plate is arranged in the inner wall moving groove. A contact push rod is vertically arranged on the side of the contact connecting plate. The end of the contact push rod penetrates the inner wall of the inner wall moving groove and extends to the outside of the top connecting block. A contact spring is sleeved on the contact push rod. One end of the contact spring is connected to the rod body of the contact spring, and the other end of the contact spring is connected to the outer wall of the top connecting block. A side mounting block is arranged at the bottom end of the side of the waste gas filter cylinder.

[0007] Preferred technical solution 1: A water pump is installed at the top of the side mounting block. The output end of the water pump is communicated with a water delivery pipe. A three-way pipe valve is arranged at the end of the water delivery pipe.

[0008] Preferred technical solution 2: The water delivery pipe and the water delivery pipe are communicated through the arranged three-way pipe valve. The input end of the water pump is communicated with an external water inlet pipe.

[0009] Preferred technical solution 3: The upper space of the waste gas filter cylinder is larger than the lower space of the waste gas filter cylinder.

[0010] This solution can make the waste gas entering the waste gas filter cylinder through the waste gas external connection pipe instantaneously reduce the flow rate of the waste gas inside the waste gas filter cylinder by the larger upper space than the lower space of the waste gas filter cylinder when the waste gas enters the waste gas filter cylinder at high speed.

[0011] Preferred technical solution 4: The water mist nozzles arranged on the upper and lower sides of the inner wall of the waste gas filter cylinder face in opposite directions.

[0012] This solution can make the water mist sprayed from the water delivery pipe to the water mist nozzles better fill the inner cavity of the waste gas filter cylinder.

[0013] Preferred technical solution 5: A connecting block convenient for pulling is arranged at the end of the contact push rod.

[0014] This solution can make it more convenient for users to pull the contact push rod.

[0015] Compared with the prior art, the present utility model provides a waste gas removal filter for the etching white smoke of circuit boards, and has the following beneficial effects:

[0016] (1) The utility model is provided with an exhaust gas filtering cylinder, and an exhaust gas spray removal component is arranged on the exhaust gas filtering cylinder. The top space of the exhaust gas filtering cylinder is larger than the bottom space. Thus, the high-speed flowing white smoke entering through the top of the exhaust gas filtering cylinder can be decelerated by the larger space at the top of the exhaust gas filtering cylinder. The water mist nozzles in the exhaust gas spray removal component can spray water mist into the inner cavity of the exhaust gas filtering cylinder in the water flow conveyed by the water delivery pipe, so that the white smoke entering the exhaust gas filtering cylinder can be more thoroughly combined with the water mist to form a liquid state, achieving the effect of efficiently removing white smoke, effectively preventing the white smoke generated during the etching process of the circuit board from drifting into the air, providing a safer working environment for workers, and preventing air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the main front view schematic diagram of the structure of the utility model;

[0018] Figure 2 is the main front view sectional schematic diagram of the structure of the utility model;

[0019] Figure 3 is of the utility model Figure 2 enlarged view of the structure of the water mist nozzle in;

[0020] Figure 4 is of the utility model Figure 2 enlarged view of the structure of the water pump in.

[0021] In the figure:

[0022] 1, exhaust gas filtering cylinder; 2, top opening; 3, exhaust gas external connection pipe; 4, bottom water outlet; 5, exhaust gas spray removal component;

[0023] 501, water delivery pipe; 502, water mist nozzle; 503, connecting pipe; 504, water pipe fixing block; 505, top connecting block; 506, limiting jack; 507, inner wall movable groove; 508, abutting connecting plate; 509, abutting push rod; 510, abutting spring; 511, side mounting block; 512, water pump; 513, water supply pipe; 514, three-way pipe valve; 515, external water inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Please refer to Figures 1-4

[0025] Embodiment 1: A filter for removing white smoke from exhaust gas in circuit board etching includes an exhaust gas filtering cylinder 1. A top opening 2 is arranged at the top end of the exhaust gas filtering cylinder 1. An exhaust gas external connection pipe 3 is connected to the top opening 2. A bottom water outlet 4 is opened at the bottom of the exhaust gas filtering cylinder 1. An exhaust gas spray removal component 5 for exhaust gas treatment is arranged on the exhaust gas filtering cylinder 1.

[0026] The waste gas spray removal assembly 5 includes a water delivery pipe 501 uniformly arranged around the outer side of the waste gas filter cylinder 1. A number of water mist nozzles 502 are uniformly arranged in the waste gas filter cylinder 1. The water mist nozzles 502 are connected to the water delivery pipe 501 through a communicated pipe 503 arranged therebetween. The water delivery pipe 501 and the waste gas filter cylinder 1 are fixedly connected through a number of pipe fixing blocks 504 arranged therebetween. The top end of the water delivery pipe 501 is provided with a top connection block 505, and a limit jack 506 is opened in the middle of the top connection block 505.

[0027] The top end of the water delivery pipe 501 is inserted through and into the limit jack 506. An inner wall movable groove 507 is opened on the inner wall of the limit jack 506. A contact connecting plate 508 is arranged in the inner wall movable groove 507. A contact push rod 509 is vertically arranged on the side of the contact connecting plate 508. The end of the contact push rod 509 penetrates through the inner wall of the inner wall movable groove 507 and extends to the outside of the top connection block 505. A contact spring 510 is sleeved on the contact push rod 509. One end of the contact spring 510 is connected to the rod body of the contact spring 510, and the other end of the contact spring 510 is connected to the outer wall of the top connection block 505.

[0028] A side installation block 511 is arranged at the bottom end of the side of the waste gas filter cylinder 1. A water pump 512 is installed at the top end of the side installation block 511. The output end of the water pump 512 is communicated with a water delivery pipe 513. A three-way pipe valve 514 is arranged at the end of the water delivery pipe 513. The water delivery pipe 501 and the water delivery pipe 513 are communicated through the three-way pipe valve 514 arranged therebetween. The input end of the water pump 512 is communicated with an external water inlet pipe 515.

[0029] Embodiment 2: The difference between this embodiment and Embodiment 1 is that, among them, the upper space of the waste gas filter cylinder 1 is larger than the lower space of the waste gas filter cylinder 1.

[0030] So that the waste gas entering the waste gas filter cylinder 1 through the waste gas external connection pipe 3, due to the upper space of the waste gas filter cylinder 1 being larger than the lower space, instantaneously reduces the flow rate of the waste gas entering the waste gas filter cylinder 1 at high speed by the increase in space.

[0031] Embodiment 3: The difference between this embodiment and Embodiment 1 is that, among them, the water mist nozzles 502 arranged on the upper and lower sides of the inner wall of the waste gas filter cylinder 1 face in opposite directions.

[0032] So that the water mist sprayed into the water mist nozzles 502 through the water delivery pipe 501 can better fill the inner cavity of the waste gas filter cylinder 1.

[0033] Embodiment 4: The difference between this embodiment and Embodiment 1 is that, among them, a connecting block convenient for pulling is arranged at the end of the contact push rod 509.

[0034] This makes it more convenient for the user to pull the resistance push rod 509.

[0035] In this embodiment, since the existing circuit board will generate a certain amount of waste gas white smoke during the etching process, and the main substance of the white smoke is ammonium chloride particles formed by the mixture of hydrochloric acid and ammonia, if these harmful gases are not properly treated and drift into the air, they will have a great impact on the health of the workers in the operation and will also pollute the air environment.

[0036] In summary, in a specific implementation, the smoke generated during the etching process of the circuit board is centrally sucked, and the sucked smoke is introduced into the top opening 2 through the exhaust gas external pipe 3, so that the smoke can enter from the top of the exhaust gas filter cartridge 1. The main substance of the white smoke generated during the etching process of the circuit board is ammonium chloride particles formed by the mixture of hydrochloric acid and ammonia, and the particles will dissolve in water after being fully fused with water, thereby removing the white smoke from the source.

[0037] By utilizing this principle, an exhaust gas spray removal component 5 is provided on the exhaust gas filter cartridge 1, wherein a plurality of water mist nozzles 502 are provided in the exhaust gas spray removal component 5, and the plurality of water mist nozzles 502 are evenly distributed on the inner cavity of the water pipe 501. By suctioning the external water source by the water pump 512, the clean water flow can be delivered to the water pipe 501 through the water supply pipe 513. The water pipe 501 is then delivered to the water mist nozzle 502 through the connecting pipe 503. The inner cavity of the exhaust gas filter cartridge 1 is fully sprayed with water mist through the water mist nozzle 502. Since the top space of the exhaust gas filter cartridge 1 is larger than its bottom space, the white smoke exhaust gas enters the top of the exhaust gas filter cartridge 1 through the exhaust external pipe 3.

[0038] The white smoke exhaust gas can pass through the top of the exhaust gas filter cartridge 1 which instantly enlarges the space when flowing at high speed, so that the white smoke exhaust gas entering the exhaust gas filter cartridge 1 can slow down the flow rate, thereby making the white smoke flow slower in the exhaust gas filter cartridge 1, and more fully get the water mist sprayed by the water mist nozzle 502 to merge with it, and all the ammonium chloride particles are integrated into the liquid, thereby achieving the effect of removing the white smoke, and the exhaust gas filter cartridge 1 is made of PP flame-retardant plastic available on the market as a whole, thereby improving the heat resistance of the exhaust gas filter cartridge 1.

Claims

1. A circuit board etching white smoke waste gas removal filter, comprising a waste gas filter cylinder (1), characterized in that: The top of the waste gas filter cartridge (1) is provided with a top opening (2), and a waste gas external connection pipe (3) is communicated with the top opening (2). The bottom of the waste gas filter cartridge (1) is provided with a bottom water outlet (4). A waste gas spray removal assembly (5) for waste gas treatment is arranged on the waste gas filter cartridge (1). The waste gas spray removal assembly (5) includes a water delivery pipe (501) uniformly arranged around the outer side of the waste gas filter cartridge (1). A plurality of water mist nozzles (502) are uniformly arranged in the waste gas filter cartridge (1). The water mist nozzles (502) are communicated with the water delivery pipe (501) through a communicated pipe (503) arranged therebetween. The water delivery pipe (501) is fixedly connected with the waste gas filter cartridge (1) through a plurality of pipe fixing blocks (504) arranged therebetween. The top of the water delivery pipe (501) is provided with a top connection block (505). A limit jack (506) is arranged in the middle of the top connection block (505). The top of the water delivery pipe (501) is inserted through the limit jack (506). An inner wall moving groove (507) is arranged on the inner wall of the limit jack (506). A contact connecting plate (508) is arranged in the inner wall moving groove (507). A contact push rod (509) is vertically arranged on the side of the contact connecting plate (508). The end of the contact push rod (509) penetrates through the inner wall of the inner wall moving groove (507) and extends to the outside of the top connection block (505). A contact spring (510) is sleeved on the contact push rod (509). One end of the contact spring (510) is connected with the rod body of the contact spring (510), and the other end of the contact spring (510) is connected with the outer wall of the top connection block (505). A side mounting block (511) is arranged at the bottom end of the side of the waste gas filter cartridge (1).

2. The white smoke waste gas removal filter for a circuit board etching according to claim 1, wherein: A water pump (512) is installed at the top of the side mounting block (511). The output end of the water pump (512) is communicated with a water delivery pipe (513). The end of the water delivery pipe (513) is provided with a three-way pipe valve (514).

3. A filter for removing etching white smoke exhaust gas of a circuit board according to claim 2, characterized in that: The water delivery pipe (501) is communicated with the water delivery pipe (513) through the three-way pipe valve (514) arranged therebetween. The input end of the water pump (512) is communicated with an external water inlet pipe (515).

4. A circuit board etching white smoke exhaust gas removal filter according to claim 3, characterized in that: The upper space of the waste gas filter cartridge (1) is larger than the lower space of the waste gas filter cartridge (1).

5. The white smoke waste gas removal filter for a circuit board etching according to claim 4, wherein: The water mist nozzles (502) arranged on the upper and lower sides of the inner wall of the waste gas filter cartridge (1) face in opposite directions.

6. The white smoke exhaust gas removal filter for a circuit board etching according to claim 5, characterized in that: A connecting block for facilitating pulling is arranged at the end of the contact push rod (509).

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