A waste gas treatment device for food packaging materials

Abstract

The utility model discloses a kind of waste gas treatment devices for food packaging material, including box, the inside bottom end of box is fixed with baffle, the inside of box and located above baffle is filled with water, one side of box middle part is penetrated and fixedly connected with air inlet pipe, and one end of air inlet pipe located in box extends into water, the top of box is fixed with air outlet pipe. In the utility model, set box, baffle, air inlet pipe, air outlet pipe, drying assembly and adsorption assembly, after waste gas enters the inside of box from air inlet pipe, waste gas is directly contacted with water at the bottom of box, particulate impurities in waste gas can be left in water, waste gas continues to rise in the process first through drying assembly and is dried, then waste gas is adsorbed and handled by adsorption assembly, avoid that activated carbon of adsorption assembly is damp, to reach better treatment effect, and the device is more water resource saving.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device for food packaging materials. Background Technology

[0002] Waste gas treatment during food packaging material production is a crucial aspect of environmental protection and safe production. Food packaging production often involves the processing of materials such as plastics, inks, and adhesives, which may release harmful substances such as volatile organic compounds (VOCs), dust, and odorous gases. Direct emissions can pollute the atmosphere and even form secondary pollutants such as photochemical smog or PM2.5. Some components of the waste gas are toxic or carcinogenic, and long-term exposure may harm the health of workers and nearby residents. Waste gas treatment (such as activated carbon adsorption and catalytic combustion) can effectively reduce the concentration of harmful substances and ensure personnel safety.

[0003] A search revealed that patent CN216987008U discloses a waste gas treatment device for food packaging bag production. This device automatically adjusts the spray volume of the nozzles on the surface of the water storage chamber based on the waste gas volume, avoiding waste of spray liquid. However, this device has the following drawbacks: It relies on spraying water to settle particulate impurities in the waste gas, followed by activated carbon adsorption. This water-spraying method leads to a sharp increase in humidity inside the device. Activated carbon's adsorption capacity significantly decreases in environments with humidity exceeding 60%, resulting in poorer adsorption and treatment of the waste gas. Furthermore, the water-spraying method requires further improvement in terms of water conservation. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste gas treatment device for food packaging materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waste gas treatment device for food packaging materials, comprising a box body, a partition fixed at the bottom of the box body, water filling the box body above the partition, an air inlet pipe connected through and fixed to one side of the middle of the box body, and one end of the air inlet pipe extending into the water inside the box body, and an air outlet pipe fixed at the top of the box body.

[0006] The side wall of the box away from the air inlet pipe has a first side opening, a second side opening, and a third side opening from top to bottom. The first side opening and the second side opening are above the water surface, and the third side opening is below the partition. An adsorption component is provided inside the box near the first side opening, and the adsorption component includes a first box filled with activated carbon. A drying component is provided inside the box near the second side opening, and the drying component includes a second box. A water-absorbing sponge is provided at the bottom of the second box, and the surface of the water-absorbing sponge is filled with desiccant.

[0007] A third box is provided inside the box and near the third side opening. A filter screen is fixed to the bottom wall of the third box, a drain pipe is fixed to the middle of the partition, and a controller is installed on the outer wall of the box.

[0008] Furthermore, a water supply pipe is fixed to the side wall of the box and above the water surface.

[0009] Furthermore, a support plate is fixed to the inner side wall of the box and to the lower surface of the first box, the second box, and the third box.

[0010] Furthermore, both the first and second boxes are fixed with support nets at their bottoms.

[0011] Furthermore, the first box, the second box, and the third box pass through the first side opening, the second side opening, and the third side opening respectively and are fixedly connected to the side plate. The side plate is attached to the outer surface of the box, and a magnet is fixed on the side plate near the box. An iron sheet is fixed on the surface of the box directly opposite the magnet.

[0012] Furthermore, a solenoid valve is fixedly connected to the middle of the drain pipe, the solenoid valve is electrically connected to the controller, and a discharge pipe is fixed to the bottom side wall of the box, and the discharge pipe is located below the third box.

[0013] Furthermore, a viewing window is fixed to the side wall of the enclosure above the partition.

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

[0015] 1. In use, this utility model provides a waste gas treatment device for food packaging materials, which includes a box, partition, inlet pipe, outlet pipe, drying component, and adsorption component. After the waste gas enters the box through the inlet pipe, it comes into direct contact with the water at the bottom of the box. Particulate impurities in the waste gas remain in the water. As the waste gas continues to rise, it is first dried by the drying component and then adsorbed by the adsorption component. This avoids the activated carbon in the adsorption component from getting damp, thereby achieving a better treatment effect. Moreover, this device saves water resources.

[0016] 2. When in use, this utility model is a waste gas treatment device for food packaging materials, which is equipped with a box, a third box and a filter screen. When the water inside the box is saturated with particulate impurities, the water is discharged through the drain pipe, and the particulate impurities in the water are filtered out by the filter screen, thereby quickly realizing the collection and treatment of particulate impurities, making the treatment of impurities simpler and faster. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 : First overall perspective view of this utility model;

[0019] Figure 2 : Second overall perspective view of this utility model;

[0020] Figure 3 : Overall sectional view of this utility model;

[0021] Figure 4 Partial perspective view of this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1. Box body; 101. First side opening; 102. Second side opening; 103. Third side opening; 104. Support plate; 2. Partition; 3. Air inlet pipe; 4. Air outlet pipe; 5. Water inlet pipe; 6. First box; 7. Second box; 8. Absorbent sponge; 9. Support mesh; 10. Side plate; 11. Magnet; 12. Third box; 13. Filter screen; 14. Drain pipe; 15. Solenoid valve; 16. Discharge pipe; 17. Viewing window; 18. Controller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, a waste gas treatment device for food packaging materials is disclosed, including a box 1, a partition 2 fixed at the bottom of the box 1, water filling the box 1 above the partition 2, an air inlet pipe 3 connected through and fixed to one side of the middle of the box 1, and one end of the air inlet pipe 3 inside the box 1 extending into the water, and an air outlet pipe 4 fixed at the top of the box 1.

[0026] The side wall of the box 1 away from the air inlet pipe 3 is provided with a first side opening 101, a second side opening 102 and a third side opening 103 from top to bottom. The first side opening 101 and the second side opening 102 are located above the water surface, and the third side opening 103 is located below the partition plate 2. An adsorption component is provided inside the box 1 near the first side opening 101, and the adsorption component includes a first box 6. The first box 6 is filled with activated carbon. A drying component is provided inside the box 1 near the second side opening 102, and the drying component includes a second box 7. A water-absorbing sponge 8 is provided at the bottom of the second box 7, and the surface of the water-absorbing sponge 8 is filled with desiccant.

[0027] A third box 12 is provided inside the box 1 and near the third side opening 103. A filter screen 13 is fixed to the bottom wall of the third box 12. A drain pipe 14 is fixed in the middle of the partition 2. A controller 18 is installed on the outer wall of the box 1.

[0028] A water inlet pipe 5 is fixed to the side wall of the tank 1 above the water surface. The water inlet pipe 5 facilitates the addition of clean water into the tank 1.

[0029] Support plates 104 are fixed to the inner sidewalls of box 1 and on the lower surfaces of the first box 6, the second box 7 and the third box 12.

[0030] In this embodiment, the first box 6, the second box 7, and the third box 12 are all located inside the housing 1 and are attached to the inner wall of the housing 1. The support plate 104 provides support for the first box 6, the second box 7, and the third box 12. The first box 6, the second box 7, and the third box 12 slide along the surface of the support plate 104, so they can be pulled out from the first side opening 101, the second side opening 102, and the third side opening 103, respectively. This facilitates the replacement of the activated carbon inside the first box 6 and the replacement of the absorbent sponge 8 and desiccant inside the second box 7. After the third box 12 is pulled out, it is convenient to clean the particulate impurities on the surface of the filter screen 13.

[0031] The bottom of both the first box 6 and the second box 7 is fixed with a support net 9.

[0032] By setting up the support net 9, the first box 6 and the second box 7 are designed with a hollow structure, which facilitates the upward flow of exhaust gas.

[0033] The first box 6, the second box 7, and the third box 12 pass through the first side opening 101, the second side opening 102, and the third side opening 103 respectively and are fixedly connected to the side plate 10. The side plate 10 is attached to the outer surface of the box 1, and a magnet 11 is fixed on the side of the side plate 10 near the box 1. An iron sheet is fixed on the surface of the box 1 directly opposite the magnet 11.

[0034] In this embodiment, a handle is fixed on one side of the side panel 10 located outside the box 1, so that the side panel 10 can be pulled or pushed by the handle, thereby moving the corresponding first box 6, second box 7 and third box 12. When the side panel 10 is in contact with the surface of the box 1, it is fixed by attracting the iron sheet with the magnet 11. The side panel 10 and the surface of the box 1 are sealed with a sealing strip to prevent exhaust gas leakage.

[0035] A solenoid valve 15 is fixedly connected to the middle of the drain pipe 14. The solenoid valve 15 is electrically connected to the controller 18. A discharge pipe 16 is fixed to the bottom side wall of the box 1, and the discharge pipe 16 is located below the third box 12.

[0036] In this embodiment, the solenoid valve 15 uses a Burkert Type 6013 signal, and the controller 18 uses a Siemens SIMATIC S7-1200. The controller 18 controls the opening and closing of the solenoid valve 15. When the solenoid valve 15 is open, the water on the surface of the partition 2 is discharged downwards along the drain pipe 14. After being filtered by the filter screen 13, the water is discharged from the drain pipe 16.

[0037] A viewing window 17 is fixed on the side wall of the enclosure 1 and above the partition 2.

[0038] It allows for easy observation of the turbidity of the water inside the tank 1 through the viewing window 17, thereby determining whether the water needs to be changed.

[0039] Working principle: First, clean water is added into the tank 1 through the water inlet pipe 5. The water level is observed through the viewing window 17. After the exhaust gas enters the tank 1 through the air inlet pipe 3, it first flows into the water. The particulate impurities in the exhaust gas are adsorbed by the water and remain in the water. Then, as the exhaust gas flows upward, it passes through the second box 7 and the first box 6 in sequence. The water-absorbing sponge 8 and desiccant in the second box 7 dry the exhaust gas. The dried exhaust gas is then adsorbed by activated carbon and discharged from the air outlet pipe 4. When the water becomes cloudy and needs to be replaced, the solenoid valve 15 is opened by the controller 18, and the sewage is discharged downward along the drain pipe 14. After being filtered by the filter screen 13, it is discharged from the discharge pipe 16.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A waste gas treatment device for food packaging materials, comprising a housing (1), characterized in that: The bottom of the box (1) is fixed with a partition (2). The box (1) is filled with water above the partition (2). An air inlet pipe (3) is fixedly connected through one side of the middle of the box (1). One end of the air inlet pipe (3) inside the box (1) extends into the water. An air outlet pipe (4) is fixed at the top of the box (1). The side wall of the box (1) away from the air inlet pipe (3) is provided with a first side opening (101), a second side opening (102) and a third side opening (103) from top to bottom. The first side opening (101) and the second side opening (102) are located above the water surface, and the third side opening (103) is located below the partition (2). An adsorption component is provided inside the box (1) near the first side opening (101), and the adsorption component includes a first box (6). The first box (6) is filled with activated carbon. A drying component is provided inside the box (1) near the second side opening (102), and the drying component includes a second box (7). A water-absorbing sponge (8) is provided at the bottom of the second box (7), and the surface of the water-absorbing sponge (8) is filled with desiccant. A third box (12) is provided inside the box (1) and near the third side opening (103). A filter screen (13) is fixed on the bottom wall of the third box (12). A drain pipe (14) is fixed in the middle of the partition (2). A controller (18) is installed on the outer wall of the box (1).

2. The waste gas treatment device for food packaging materials according to claim 1, characterized in that: A water supply pipe (5) is fixed to the side wall of the box (1) above the water surface.

3. The waste gas treatment device for food packaging materials according to claim 1, characterized in that: The inner wall of the box (1) and the lower surface of the first box (6), the second box (7) and the third box (12) are all fixed with support plates (104).

4. The waste gas treatment device for food packaging materials according to claim 1, characterized in that: The bottom of the first box (6) and the second box (7) are both fixed with a support net (9).

5. The waste gas treatment device for food packaging materials according to claim 1, characterized in that: The first box (6), the second box (7) and the third box (12) pass through the first side opening (101), the second side opening (102) and the third side opening (103) respectively and are fixedly connected to the side plate (10). The side plate (10) is attached to the outer surface of the box (1), and a magnet (11) is fixed on the side of the side plate (10) near the box (1). An iron sheet is fixed on the surface of the box (1) directly opposite the magnet (11).

6. The waste gas treatment device for food packaging materials according to claim 1, characterized in that: A solenoid valve (15) is fixedly connected to the middle of the drain pipe (14). The solenoid valve (15) is electrically connected to the controller (18). A discharge pipe (16) is fixed to the bottom side wall of the box (1), and the discharge pipe (16) is located below the third box (12).

7. The waste gas treatment device for food packaging materials according to claim 1, characterized in that: A viewing window (17) is fixed to the side wall of the box (1) and above the partition (2).

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