Waste gas collecting and purifying device for printing and packaging industry

Abstract

The utility model relates to the field of the printing and packaging industry, in particular to a waste gas collecting and purifying device for the printing and packaging industry, which comprises a waste gas purifying box body, an exhaust fan body is arranged on one side of the waste gas purifying box body, the positive pressure end of the exhaust fan body is connected with a gas conveying pipeline, and the other side of the gas conveying pipeline is inserted into the waste gas purifying box body. A first spraying assembly, a second spraying assembly and a third spraying assembly are arranged in the waste gas purification box body at equal intervals; according to the waste gas purification device disclosed by the utility model, waste gas is introduced into the waste gas purification box body through the exhaust fan body, and treatment liquid in the liquid storage box is sprayed out through the spray head through the first spray assembly, the second spray assembly and the third spray assembly, so that the waste gas is purified, the contact area between the waste gas and the treatment liquid is increased, and the contact time between the waste gas and the treatment liquid is prolonged; the full contact between the waste gas and the treatment liquid is ensured, so that the purification efficiency of the waste gas is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of the printing and packaging industry, and in particular to a waste gas collection and purification device for the printing and packaging industry. Background Technology

[0002] The printing and packaging industry generates waste gas during production. This waste gas typically contains volatile organic compounds such as inks and solvents. If it is discharged directly into the atmosphere without proper treatment, it will aggravate air pollution and affect environmental quality. Therefore, it needs to be treated by waste gas collection and purification devices.

[0003] However, existing printing exhaust gas treatment devices only collect the exhaust gas emitted by the printing press and release it centrally. They cannot treat the harmful substances in the exhaust gas, and cleaning and maintenance are relatively troublesome, which can easily lead to non-compliance with emission standards and affect the surrounding environment and air quality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste gas collection and purification device for the printing and packaging industry.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waste gas collection and purification device for the printing and packaging industry includes a waste gas purification box. A blower body is provided on one side of the waste gas purification box. A gas supply pipe is connected to the positive pressure end of the blower body. The other side of the gas supply pipe is inserted into the waste gas purification box. A first spray assembly, a second spray assembly, and a third spray assembly are arranged at equal intervals inside the waste gas purification box.

[0007] The first spray assembly, the second spray assembly, and the third spray assembly all include a fixing ring. A guide pipe is fixedly installed on one side of the bottom of the fixing ring, and a material discharge hole is opened through the fixing ring and the guide pipe. A cavity is opened in the middle of the fixing ring, and multiple spray heads are arranged at equal intervals at the bottom of the fixing ring in the cavity. A branch pipe is installed on one side of the fixing ring, and one side of the branch pipe extends out of the exhaust gas purification box and connects to the main pipe.

[0008] The discharge through holes of the first spray assembly, the second spray assembly, and the third spray assembly are staggered.

[0009] In addition, a preferred structure is that a liquid storage tank is provided on the other side of the exhaust gas purification box, an inlet pipe is provided on the top of the liquid storage tank, and a pump body is provided on one side of the liquid storage tank.

[0010] In addition, a preferred structure is that the suction end of the pump body is inserted into the liquid storage tank, the output end of the pump body is connected to a delivery pipe, and the other end of the delivery pipe is connected to the main pipeline.

[0011] Furthermore, in a preferred configuration, a flow hole is provided within the fixing ring between the spray head and the cavity, and a flow cavity is provided within the fixing ring between the branch pipe and the cavity.

[0012] In addition, a preferred structure is that the top of the exhaust gas purification box is provided with an exhaust vent, and the bottom of the exhaust gas purification box is provided with a drain outlet, which is equipped with a drain valve.

[0013] Furthermore, in a preferred configuration, the top of the retaining ring facing the downward material through hole is set as an inclined surface.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, exhaust gas is introduced into the exhaust gas purification chamber through the exhaust fan body, and the treatment liquid in the storage tank is sprayed out through the spray head through the first spray assembly, the second spray assembly, and the third spray assembly, thereby purifying the exhaust gas and increasing the contact area and contact time between the exhaust gas and the treatment liquid to ensure that the exhaust gas and the treatment liquid are fully in contact, thereby improving the purification efficiency of the exhaust gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a waste gas collection and purification device for the printing and packaging industry proposed in this utility model;

[0017] Figure 2 A schematic diagram of the cross-sectional structure of a waste gas collection and purification device for the printing and packaging industry proposed in this utility model. Figure 1 ;

[0018] Figure 3 A schematic diagram of the cross-sectional structure of a waste gas collection and purification device for the printing and packaging industry proposed in this utility model. Figure 2 ;

[0019] Figure 4 A schematic diagram of the cross-sectional structure of a waste gas collection and purification device for the printing and packaging industry proposed in this utility model. Figure 3 .

[0020] In the diagram: 1. Exhaust gas purification chamber; 2. Exhaust fan body; 21. Gas transmission pipeline; 3. Liquid storage tank; 4. Pump body; 41. Conveying pipeline; 5. Main pipeline; 51. Branch pipeline; 6-1. First spray assembly; 6-2. Second spray assembly; 6-3. Third spray assembly; 61. Fixing ring; 62. Cavity; 63. Spray head; 64. Material discharge through hole; 65. Guide pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A waste gas collection and purification device for the printing and packaging industry includes a waste gas purification box 1, an exhaust fan body 2 is provided on one side of the waste gas purification box 1, an air supply pipe 21 is connected to the positive pressure end of the exhaust fan body 2, and the other side of the air supply pipe 21 is inserted into the waste gas purification box 1. A first spray assembly 6-1, a second spray assembly 6-2, and a third spray assembly 6-3 are arranged at equal intervals inside the waste gas purification box 1.

[0023] Furthermore, the first spray assembly 6-1, the second spray assembly 6-2, and the third spray assembly 6-3 all include a fixing ring 61. A guide pipe 65 is fixedly installed on one side of the bottom of the fixing ring 61, and a discharge through hole 64 is opened between the fixing ring 61 and the guide pipe 65. A cavity is opened in the middle of the fixing ring 61, and multiple spray heads 63 are evenly arranged at the bottom of the fixing ring 61 in the cavity. A branch pipe 51 is installed on one side of the fixing ring 61, and one side of the branch pipe 51 extends out of the exhaust gas purification box 1 and connects to the main pipe 5.

[0024] Meanwhile, the discharge through holes 64 of the first spray assembly 6-1, the second spray assembly 6-2, and the third spray assembly 6-3 are staggered.

[0025] Furthermore, a liquid storage tank 3 is provided on the other side of the exhaust gas purification box 1. A feed pipe is provided on the top of the liquid storage tank 3, and a pump body 4 is provided on one side of the liquid storage tank 3. The liquid storage tank 3 stores treatment liquid, and the treatment liquid is an existing product that has been disclosed on the market. It is not a major technical problem that needs to be solved in this technical solution, so it will not be described in detail in this utility model.

[0026] Furthermore, the suction end of the pump body 4 is inserted into the liquid storage tank 3, and the output end of the pump body 4 is connected to the delivery pipe 41, the other end of the delivery pipe 41 being connected to the main pipe 5.

[0027] Furthermore, a flow hole is provided inside the fixing ring 61 between the spray head 63 and the cavity, and a flow cavity is provided inside the fixing ring 61 between the branch pipe 51 and the cavity.

[0028] Meanwhile, the top of the exhaust gas purification box 1 is provided with an exhaust vent, and the bottom of the exhaust gas purification box 1 is provided with a drain outlet, which is equipped with a drain valve.

[0029] Meanwhile, the top of the fixing ring 61 is set as an inclined surface facing the material through hole.

[0030] It is worth noting that the specific structure and working method of the pump body 4 and the exhaust fan body 2 are existing technologies that are already publicly available on the market, and are not the main technical problems to be solved in this technical solution. Therefore, they will not be described in detail in this utility model.

[0031] In this embodiment, exhaust gas is introduced into the exhaust gas purification chamber 1 through the exhaust fan 2, and the treatment liquid in the storage tank 3 is sprayed out through the spray head through the first spray assembly 6-1, the second spray assembly 6-2, and the third spray assembly 6-3, thereby purifying the exhaust gas and increasing the contact area and contact time between the exhaust gas and the treatment liquid to ensure that the exhaust gas and the treatment liquid are in full contact, thereby improving the purification efficiency of the exhaust gas.

[0032] Meanwhile, by setting the guide pipe 65, the exhaust gas is guided, and the contact time between the exhaust gas and the treatment liquid is increased, ensuring that the exhaust gas and the treatment liquid are fully in contact. Furthermore, by staggering the discharge through holes 64 of the first spray assembly 6-1, the second spray assembly 6-2, and the third spray assembly 6-3, the contact time between the exhaust gas and the treatment liquid is further increased, ensuring that the exhaust gas and the treatment liquid are fully in contact, thereby improving the purification efficiency of the exhaust gas.

[0033] Meanwhile, the top of the fixed ring 61 is set as an inclined surface for the material through hole, which facilitates the guidance of the waste liquid generated after the reaction of the treatment liquid and the waste gas and its final discharge through the drain outlet.

[0034] In this invention, exhaust gas is introduced into the exhaust gas purification chamber 1 through the exhaust fan 2, and the treatment liquid in the storage tank 3 is sprayed out through the spray head through the first spray assembly 6-1, the second spray assembly 6-2, and the third spray assembly 6-3, thereby purifying the exhaust gas and increasing the contact area and contact time between the exhaust gas and the treatment liquid to ensure that the exhaust gas and the treatment liquid are in full contact, thereby improving the purification efficiency of the exhaust gas.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste gas collection and purification device for the printing and packaging industry, comprising a waste gas purification chamber (1), characterized in that, The exhaust gas purification box (1) is provided with a blower body (2) on one side. The positive pressure end of the blower body (2) is connected to a gas transmission pipe (21). The other side of the gas transmission pipe (21) is inserted into the exhaust gas purification box (1). The exhaust gas purification box (1) is provided with a first spray assembly (6-1), a second spray assembly (6-2), and a third spray assembly (6-3) at equal intervals. The first spray assembly (6-1), the second spray assembly (6-2), and the third spray assembly (6-3) all include a fixing ring (61). A guide pipe (65) is fixedly installed on one side of the bottom of the fixing ring (61), and a discharge through hole (64) is opened between the fixing ring (61) and the guide pipe (65). A cavity is opened in the middle of the fixing ring (61), and multiple spray heads (63) are arranged at equal intervals at the bottom of the fixing ring (61) in the cavity. A branch pipe (51) is installed on one side of the fixing ring (61), and one side of the branch pipe (51) passes through the exhaust gas purification box (1) and is connected to the main pipe (5). The discharge through holes (64) of the first spray assembly (6-1), the second spray assembly (6-2), and the third spray assembly (6-3) are staggered.

2. The waste gas collection and purification device for the printing and packaging industry according to claim 1, characterized in that, A liquid storage tank (3) is provided on the other side of the exhaust gas purification box (1). A feed pipe is provided on the top of the liquid storage tank (3), and a pump body (4) is provided on one side of the liquid storage tank (3).

3. The waste gas collection and purification device for the printing and packaging industry according to claim 2, characterized in that, The suction end of the pump body (4) is inserted into the liquid storage tank (3), and the output end of the pump body (4) is connected to the delivery pipe (41). The other end of the delivery pipe (41) is connected to the main pipe (5).

4. The waste gas collection and purification device for the printing and packaging industry according to claim 1, characterized in that, A flow hole is provided in the fixed ring (61) between the spray head (63) and the cavity, and a flow cavity is provided in the fixed ring (61) between the branch pipe (51) and the cavity.

5. A waste gas collection and purification device for the printing and packaging industry according to claim 1, characterized in that, The exhaust gas purification box (1) has an exhaust vent at the top and a drain outlet at the bottom, which is equipped with a drain valve.

6. The waste gas collection and purification device for the printing and packaging industry according to claim 1, characterized in that, The top of the fixing ring (61) is set as an inclined surface with the material through hole facing downward.

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