A printing exhaust gas collecting and purifying device

Abstract

The utility model relates to the collection purification technical field of printing waste gas, and disclose a kind of collection purification device of printing waste gas, including base, the top of base is fixedly connected with purification assembly, the top of base is fixedly connected with adjusting assembly, the left side of purification assembly is fixedly communicated with exhaust fan, the suction end of exhaust fan is fixedly communicated with hose, another end of hose is fixedly connected with suction tube, the bottom of suction tube is fixedly connected with three suction hoods, the outside of three suction hoods is fixedly connected with same shell;The adjusting assembly includes first support plate, first support plate is installed with cylinder, the left side of cylinder is fixedly connected with adjusting frame, and adjusting frame is realized horizontal movement by cylinder push, and servo motor drives worm and worm gear to make suction hood realize angle adjustment, can flexibly adjust the position and orientation of suction hood according to actual needs, more accurately close to waste gas generation source, and efficiently collect printing waste.

Description

Technical Field

[0001] This utility model relates to the field of printing waste gas collection and purification technology, specifically to a printing waste gas collection and purification device. Background Technology

[0002] Woven bags, also known as snake-skin bags, are a type of plastic bag used for packaging. Their raw materials are generally polyethylene, polypropylene, and other chemical plastics. Woven bags have a wide range of uses, mainly for packaging various items, and are widely used in industry. Plastic woven bags are made from polypropylene resin as the main raw material, which is extruded, stretched into flat filaments, and then woven and made into bags.

[0003] In the printing industry (especially gravure printing), the drying and ink solvent evaporation processes during woven bag printing generate a large amount of waste gas containing VOCs (volatile organic compounds), particulate matter, and odors. Direct discharge of this gas will severely pollute the environment and harm human health. Traditional waste gas collection devices are mostly fixed hoods, which cannot be dynamically adjusted according to the position and height of the waste gas source (such as the drying chamber or printing plate cylinder), resulting in low waste gas capture efficiency. Therefore, there is an urgent need for a collection and purification device for printing waste gas. Utility Model Content

[0004] The purpose of this invention is to provide a device for collecting and purifying printing waste gas to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a collection and purification device for printing waste gas, including a base, a purification component fixedly connected to the top of the base, an adjustment component fixedly connected to the top of the base, an exhaust fan fixedly connected to the left side of the purification component, a hose fixedly connected to the suction end of the exhaust fan, a suction pipe fixedly connected to the other end of the hose, three suction hoods fixedly connected to the bottom of the suction pipe, and the same outer shell fixedly connected to the outside of the three suction hoods.

[0006] The adjustment assembly includes a first support plate, on which a cylinder is mounted. An adjustment frame is fixedly connected to the left side of the cylinder, and a support is fixedly connected to the left side of the adjustment frame. A rotating shaft is rotatably connected inside the support, and a rotating block is fixedly connected to the surface of the rotating shaft. The bottom of the rotating block is fixedly connected to the outer shell, and a worm gear is fixedly connected to the back of the rotating shaft. A servo motor is fixedly connected to the top of the adjustment frame, and a worm is fixedly connected to the output end of the servo motor.

[0007] Preferably, the worm gear meshes with the worm wheel, a limiting hole is provided on one side of the first support plate, a limiting rod is slidably inserted into each limiting hole, and the left side of each limiting rod is fixedly connected to the adjusting frame.

[0008] Preferably, the bottom of the first support plate is fixedly connected to two support rods, and the bottom of each support rod is fixedly connected to the base.

[0009] Preferably, the base has four casters fixedly connected to its bottom, and the caster on the right side is self-locking.

[0010] Preferably, the purification assembly includes a purification box, a first slot on the top of the purification box into which a filter screen is inserted, a second slot on the top of the purification box into which a HEPA high-efficiency filter element is inserted, and a third slot on the top of the purification box into which an activated carbon adsorption plate is inserted.

[0011] Preferably, the top of the filter screen, HEPA high-efficiency filter element and activated carbon adsorption plate is fixedly connected to an mounting plate, and each mounting plate is fixedly connected to the purification box by bolts.

[0012] Preferably, a discharge pipe is fixedly connected to the right side of the purification box.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, this utility model uses a cylinder to push the adjusting frame to achieve horizontal movement, and a servo motor drives the worm and worm wheel to adjust the angle of the suction hood. It can flexibly adjust the position and orientation of the suction hood according to actual needs, and more accurately approach the source of exhaust gas to efficiently collect printing exhaust gas.

[0015] Secondly, this utility model employs a three-stage filtration and adsorption process, consisting of a filter screen, a HEPA high-efficiency filter element, and an activated carbon adsorption plate, which effectively removes large particulate impurities, fine particulate matter, odors, and harmful gases from waste gas. Simultaneously, these filter components are fixedly connected to the purification chamber via mounting plates and bolts, facilitating replacement and maintenance and ensuring the continuous and efficient operation of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the side view of the outer shell of this utility model after being cut across the left side;

[0018] Figure 3 This is a schematic diagram of the right side view of the present invention;

[0019] Figure 4 This is a cross-sectional view and structural diagram of the purification box of this utility model.

[0020] The components include: 1. Base; 2. Exhaust fan; 3. Hose; 4. Suction tube; 5. Suction hood; 6. Outer shell; 7. First support plate; 8. Cylinder; 9. Adjustment frame; 10. Support; 11. Rotating shaft; 12. Rotating block; 13. Worm gear; 14. Servo motor; 15. Worm; 16. Limiting rod; 17. Support rod; 18. Casters; 19. Purification box; 20. Filter screen; 21. HEPA high-efficiency filter element; 22. Activated carbon adsorption plate; 23. Discharge 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. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides the following technical solution:

[0023] Example 1

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A collection and purification device for printing waste gas includes a base 1, a purification component fixedly connected to the top of the base 1, an adjustment component fixedly connected to the top of the base 1, an exhaust fan 2 fixedly connected to the left side of the purification component, a hose 3 fixedly connected to the suction end of the exhaust fan 2, a suction pipe 4 fixedly connected to the other end of the hose 3, three suction hoods 5 fixedly connected to the bottom of the suction pipe 4, and the same outer shell 6 fixedly connected to the outside of the three suction hoods 5.

[0025] The adjustment assembly includes a first support plate 7, on which a cylinder 8 is mounted. An adjustment frame 9 is fixedly connected to the left side of the cylinder 8. A support 10 is fixedly connected to the left side of the adjustment frame 9. A rotating shaft 11 is rotatably connected inside the support 10. A rotating block 12 is fixedly connected to the surface of the rotating shaft 11. The bottom of the rotating block 12 is fixedly connected to the outer casing 6. A worm gear 13 is fixedly connected to the back of the rotating shaft 11. A servo motor 14 is fixedly connected to the top of the adjustment frame 9. A worm gear 15 is fixedly connected to the output end of the servo motor 14.

[0026] The worm gear 15 meshes with the worm wheel 13. A limit hole is opened on one side of the first support plate 7. A limit rod 16 is slidably inserted into each limit hole. The left side of each limit rod 16 is fixedly connected to the adjustment frame 9.

[0027] The bottom of the first support plate 7 is fixedly connected to two support rods 17, and the bottom of each support rod 17 is fixedly connected to the base 1.

[0028] Four casters 18 are fixedly connected to the bottom of the base 1, and the caster 18 on the right side is self-locking.

[0029] Through the above technical solution, a purification component and an adjustment component are installed on the base 1. The purification component is used to purify the printing exhaust gas, while the adjustment component is used to adjust the position and angle of the exhaust gas collection part to better collect the exhaust gas. The exhaust fan 2 is connected to the suction pipe 4 through the hose 3. The three suction hoods 5 at the bottom of the suction pipe 4 are responsible for sucking in the exhaust gas. The cylinder 8 installed on the first support plate 7 of the adjustment group can push the adjustment frame 9 to move left and right. The limit rod 16 slides in the limit hole to ensure the stability of the adjustment frame movement. The servo motor 14 drives the worm gear 15 to rotate. Since the worm gear 15 meshes with the worm wheel 13, the worm wheel 13 will drive the rotating shaft 11 to rotate, thereby enabling the rotating block 12 and the connected outer shell 6 and suction hoods 5 to achieve angle adjustment. The orientation of the suction hoods 5 can be adjusted according to actual needs to collect exhaust gas more accurately. The four moving wheels at the bottom of the base 1 facilitate the movement of the device. Among them, the moving wheel 18 on the right side is self-locking. When the device moves to a suitable position, the wheel can be locked to prevent the device from moving accidentally.

[0030] Example 2

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 Furthermore, based on Embodiment 1, the purification component includes a purification box 19, a first slot is provided on the top of the purification box 19, a filter screen 20 is inserted into the first slot, a second slot is provided on the top of the purification box 19, a HEPA high-efficiency filter element 21 is inserted into the second slot, and a third slot is provided on the top of the purification box 19, an activated carbon adsorption plate 22 is inserted into the third slot.

[0032] The top of the filter screen 20, the HEPA high-efficiency filter element 21 and the activated carbon adsorption plate 22 are fixedly connected to the mounting plate, and each mounting plate is fixedly connected to the purification box 19 by bolts.

[0033] The right side of the purification box 19 is fixedly connected to the discharge pipe 23.

[0034] Through the above technical solution, the purification box 19 is sequentially equipped with a filter screen 20, a HEPA high-efficiency filter element 21, and an activated carbon adsorption plate 22. The filter screen 20 can filter large particulate impurities in the exhaust gas, such as dust and paper scraps; the HEPA high-efficiency filter element 21 can filter fine particulate matter, further improving the purification level of the exhaust gas; the activated carbon adsorption plate 22 can adsorb odors and harmful gases in the exhaust gas, such as volatile organic compounds (VOCs). The filter screen 20, HEPA high-efficiency filter element 21, and activated carbon adsorption plate 22 are fixedly connected to the purification box 19 by mounting plates and bolts, which facilitates the replacement and maintenance of these filter components. The purified exhaust gas is discharged through the discharge pipe 23 on the right side of the purification box 19.

[0035] In actual operation, when this device is used to print woven bags using a gravure printing machine, drying and exhaust gas volatilization will occur. At this time, the printing exhaust gas collection and purification device is moved to a suitable position and the self-locking moving wheels 18 are locked. The position and angle of the suction hood are adjusted by adjusting the components to make it as close as possible to the exhaust gas source. The exhaust fan 2 is started, and the exhaust gas is sucked into the purification component through the suction hood 5, suction pipe 4 and hose 3. In the purification box 19, the exhaust gas is filtered and adsorbed in sequence through the filter screen 20, HEPA high-efficiency filter element 21 and activated carbon adsorption plate 22 to remove impurities, small particles, odors and harmful gases. Finally, the purified exhaust gas is discharged through the discharge pipe 23, thereby achieving the purpose of collecting and purifying printing exhaust gas.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for collecting and purifying printing waste gas, comprising a base (1), characterized in that: A purification component is fixedly connected to the top of the base (1), an adjustment component is fixedly connected to the top of the base (1), an exhaust fan (2) is fixedly connected to the left side of the purification component, a hose (3) is fixedly connected to the suction end of the exhaust fan (2), a suction tube (4) is fixedly connected to the other end of the hose (3), three suction hoods (5) are fixedly connected to the bottom of the suction tube (4), and the same outer shell (6) is fixedly connected to the outside of the three suction hoods (5). The adjustment assembly includes a first support plate (7), on which a cylinder (8) is mounted. An adjustment frame (9) is fixedly connected to the left side of the cylinder (8). A support (10) is fixedly connected to the left side of the adjustment frame (9). A rotating shaft (11) is rotatably connected inside the support (10). A rotating block (12) is fixedly connected to the surface of the rotating shaft (11). The bottom of the rotating block (12) is fixedly connected to the outer shell (6). A worm gear (13) is fixedly connected to the back of the rotating shaft (11). A servo motor (14) is fixedly connected to the top of the adjustment frame (9). A worm (15) is fixedly connected to the output end of the servo motor (14).

2. The printing waste gas collection and purification device according to claim 1, characterized in that: The worm (15) meshes with the worm wheel (13), and a limiting hole is opened on one side of the first support plate (7). A limiting rod (16) is slidably inserted into each limiting hole, and the left side of each limiting rod (16) is fixedly connected to the adjusting frame (9).

3. The printing waste gas collection and purification device according to claim 1, characterized in that: The bottom of the first support plate (7) is fixedly connected to two support rods (17), and the bottom of each support rod (17) is fixedly connected to the base (1).

4. The printing waste gas collection and purification device according to claim 1, characterized in that: The base (1) has four movable wheels (18) fixedly connected to its bottom, and the movable wheel (18) on the right side is self-locking.

5. The printing waste gas collection and purification device according to claim 1, characterized in that: The purification assembly includes a purification box (19), a first slot is provided on the top of the purification box (19), a filter screen (20) is inserted into the first slot, a second slot is provided on the top of the purification box (19), a HEPA high-efficiency filter element (21) is inserted into the second slot, and a third slot is provided on the top of the purification box (19), an activated carbon adsorption plate (22) is inserted into the third slot.

6. The printing waste gas collection and purification device according to claim 5, characterized in that: The top of the filter screen (20), HEPA high-efficiency filter element (21) and activated carbon adsorption plate (22) are fixedly connected to mounting plates, and each mounting plate is fixedly connected to the purification box (19) by bolts.

7. The printing waste gas collection and purification device according to claim 5, characterized in that: The right side of the purification box (19) is fixedly connected to the discharge pipe (23).

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