Plastic processing waste gas pumping and discharging device

Abstract

The utility model discloses a plastic processing waste gas pumping and discharging device, which relates to the technical field of plastic processing and comprises a box body, a first air pump, an air suction pipe, an air suction cover, an exhaust pipe, a filter screen, a first partition plate, a second partition plate, a third partition plate, an ignition disc, a flame nozzle and a fuel gas guide pipe. And the purification chamber, the combustion chamber and the filtering chamber are arranged in the box body, so that waste gas generated during plastic processing can be filtered, disinfected and deodorized in the discharging process, and pollution of the waste gas to air is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a waste gas extraction device for plastic processing. Background Art

[0002] In the process of plastic production and processing, waste gas will be generated during the extrusion molding of plastics and the melting and regeneration of plastics. These waste gases usually have a bad odor. If the waste gas is not extracted in time and treated in a centralized manner, it will lead to a bad environment in the production workshop and affect the health of on-site workers.

[0003] At present, plastic processing needs to be equipped with an exhaust gas extraction device to discharge the exhaust gas generated during plastic processing. For example, the prior art CN212597830U discloses a plastic processing exhaust gas extraction device, which includes an exhaust box, an air suction fan is fixed to the top of the inner wall of the exhaust box, a rectangular steel pipe is fixed to the bottom end of the exhaust fan, an exhaust fan is fixed to the right side wall of the rectangular steel pipe, an exhaust hood is fixed to the left side of the inner wall of the exhaust box, an exhaust pipe tube is fixed to the left side wall of the exhaust hood, the exhaust pipe tube passes through the exhaust box and extends to the outside of the exhaust box, and the end of the exhaust pipe tube is threadedly connected with an end cover.

[0004] In the prior art, a filter element is set to filter particles in the exhaust gas and then discharge it. However, odor and water-insoluble toxic gases are also generated during plastic processing. Directly discharging these odors and toxic gases will affect the outdoor air environment and easily cause air pollution. Utility Model Content

[0005] The purpose of the utility model is to provide a plastic processing waste gas extraction device to solve the above technical problems.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A plastic processing waste gas extraction device, comprising a box, a first vacuum pump, an air suction pipe, an air suction hood, an exhaust pipe, a filter screen, a first partition, a second partition, a third partition, an ignition disc, a flame nozzle and a gas conduit, wherein the first partition and the second partition are arranged in sequence from bottom to top inside the box, and a top cover is detachably arranged at the upper end of the box, the lower side of the first partition is a purification chamber, the first partition and the second partition are between the combustion chamber, the upper side of the second partition is a filter chamber, the filter chamber is provided with the third partition, and the third partition separates the filter chamber into The first chamber and the second chamber are interconnected, the first vacuum pump is arranged on an inner wall on one side of the first chamber, the filter is arranged in the first chamber, the second chamber is connected with the combustion chamber, the combustion chamber is provided with the ignition disk, a plurality of flame nozzles are arranged on the ignition disk, the ignition disk is connected with the gas duct, an exhaust pipe is arranged on one side of the box body, the exhaust pipe is connected with the purification chamber, the other side of the box body is provided with the suction pipe, one end of the suction pipe is connected with the first vacuum pump, and the other end of the suction pipe is connected with the suction hood.

[0008] Preferably, it further includes a connecting plate, two connecting plates are provided at both ends of the filter screen, the filter screen is arranged at an angle, one of the connecting plates is connected to an inner wall of one side of the first chamber, and the other connecting plate is connected to the upper end of the second partition plate.

[0009] Preferably, it further includes a baffle, which is disposed in the first chamber, and a buffer chamber is formed between the baffle and an inner wall of one side of the first chamber, and the first vacuum pump is disposed in the buffer chamber.

[0010] Preferably, it further includes a deflector cover, which is arranged in the combustion chamber, the size of the opening at one end of the deflector cover is larger than the size of the opening at the other end of the deflector cover, and the ignition disc is arranged in a ring shape and distributed on the inner wall of the opening at one end of the deflector cover.

[0011] Preferably, a second vacuum pump is further included. The purification chamber is provided with the second vacuum pump, the second vacuum pump is arranged at the lower end of the first partition, the air inlet of the second vacuum pump is connected to the combustion chamber through the first air pipe, and the air outlet of the second vacuum pump is provided with a second air pipe.

[0012] As a further preference, a liquid deodorant is provided in the purification chamber, the second air pipe is inserted into the liquid deodorant, and a one-way valve is provided on the second air pipe.

[0013] Preferably, it further includes a guide rail, a slider and a telescopic rod, wherein the guide rail is arranged on the outer wall of the other side of the box body, the slider is slidably arranged on the guide rail, one end of the telescopic rod is connected to the slider, and the other end of the telescopic rod is connected to the other end of the intake pipe.

[0014] As a further preference, it further includes positioning bolts, the slide rail is provided with a plurality of first positioning holes, the slider is provided with second positioning holes, and the positioning bolts are arranged in the second positioning holes and the corresponding first positioning holes.

[0015] As a further preference, the air intake pipe has a bellows section, and the bellows section is close to the other end of the air intake pipe.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In the utility model, a purification chamber, a combustion chamber and a filter chamber are arranged inside the box body, so that the waste gas generated during plastic processing can be filtered, disinfected and deodorized during the discharge process, thereby reducing the pollution of the waste gas to the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the plastic processing waste gas extraction device in the utility model;

[0019] Figure 2 yes Figure 1 Middle AA section view;

[0020] Figure 3 This is a front view of the plastic processing waste gas extraction device in the utility model;

[0021] Figure 4 yes Figure 3 Middle BB section view;

[0022] Figure 5 It is a three-dimensional diagram of the plastic processing waste gas extraction device in the utility model;

[0023] Figure 6 It is a schematic diagram of the combination of the ignition disc, the flame nozzle and the gas conduit in the utility model;

[0024] Figure 7 It is a structural schematic diagram of the filter screen in the utility model.

[0025] In the figure: 1. box body; 2. first vacuum pump; 3. suction pipe; 4. suction hood; 5. exhaust pipe; 6. filter screen; 7. first partition; 8. second partition; 9. third partition; 10. ignition disc; 11. flame nozzle; 12. gas duct; 13. connecting plate; 14. baffle; 15. guide cover; 16. second vacuum pump; 17. first air pipe; 18. second air pipe; 19. guide rail; 20. slider; 21. telescopic rod; 22. positioning bolt; 23. first positioning hole; 24. bellows section; 25. PLC controller; 26. water pipe joint; 27. top cover; 28. vibration motor. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Figure 1 It is a top view of the plastic processing waste gas extraction device in the utility model; Figure 2 yes Figure 1 Middle AA section view; Figure 3 This is a front view of the plastic processing waste gas extraction device in the utility model; Figure 4 yes Figure 3 Middle BB section view; Figure 5It is a three-dimensional diagram of the plastic processing waste gas extraction device in the utility model;

[0030] Figure 6 It is a schematic diagram of the combination of the ignition disc, the flame nozzle and the gas conduit in the utility model; Figure 7 This is a schematic diagram of the structure of the filter screen in the utility model, please refer to Figures 1 to 7 As shown, a preferred embodiment is shown, which shows a plastic processing waste gas extraction device, including a box body 1, a first vacuum pump 2, an air suction pipe 3, an air suction cover 4, an exhaust pipe 5, a filter screen 6, a first partition 7, a second partition 8, a third partition 9, an ignition disc 10, a flame nozzle 11 and a gas conduit 12. The interior of the box body 1 is provided with a first partition 7 and a second partition 8 from bottom to top, and a top cover 27 is detachably provided at the upper end of the box body 1. The lower side of the first partition 7 is a purification chamber, the space between the first partition 7 and the second partition 8 is a combustion chamber, and the upper side of the second partition 8 is a filter chamber. The filter chamber A third partition 9 is provided inside, and the third partition 9 divides the filter chamber into a first chamber and a second chamber that are interconnected. The first vacuum pump 2 is provided on one side inner wall of the first chamber, and the filter screen 6 is provided in the first chamber. The second chamber is connected to the combustion chamber. An ignition disk 10 is provided in the combustion chamber, and a plurality of flame nozzles 11 are provided on the ignition disk 10. The ignition disk 10 is connected to a gas conduit 12. An exhaust pipe 5 is provided on one side of the box body 1, and the exhaust pipe 5 is connected to the purification chamber. An air suction pipe 3 is provided on the other side of the box body 1. One end of the air suction pipe 3 is connected to the first vacuum pump 2, and the other end of the air suction pipe 3 is connected to the air suction hood 4. In this embodiment, see Figure 2 As shown, the outer peripheral wall of the first partition 7 and the outer peripheral wall of the second partition 8 are respectively welded to the inner peripheral wall of the box body 1, the first partition 7 and the bottom wall of the box body 1 are between the purification chamber, and the second partition 8 and the top cover 27 form a filter chamber, wherein the upper and lower surfaces of the first partition 7 and the second partition 8 are provided with a heat insulation coating to reduce the heat transfer to the purification chamber and the filter chamber. Among them, the filter screen 6 is provided for filtering particulate impurities in the exhaust gas, and the filter screen 6 can be detachably installed in the first chamber, and the first vacuum pump 2 can be installed on the inner wall of the first chamber through the mounting seat, that is, on the inner wall of the other side of the box body 1, for connection with the suction pipe 3. Among them, the second partition 8 is provided with a through hole for connecting the second chamber and the combustion chamber.

[0031] Among them, the suction pipe 3 is connected to the suction hood 4, and the suction hood 4 is used to be placed above the plastic processing table. The plastic processing table is used to process plastics. The exhaust gas generated during plastic processing can enter the first chamber through the suction hood 4 and the suction pipe 3 under the action of the first vacuum pump 2.

[0032] One end of the gas conduit 12 is connected to the ignition tray 10, and is used to provide gas to the inside of the ignition tray 10. The gas is then ignited and ejected through the flame nozzle 11 to achieve high-temperature incineration of the exhaust gas, thereby removing toxic components in the exhaust gas and reducing air pollution. The other end of the gas conduit 12 passes through the side wall of the box 1 and extends to the outside of the box 1, and is connected to an external gas tank.

[0033] In this embodiment, see Figure 4 As shown, a circular hole is provided on the third partition plate 9 to facilitate the communication between the first chamber and the second chamber.

[0034] Further, as a preferred embodiment, it further includes a connecting plate 13, two connecting plates 13 are provided at both ends of the filter screen 6, and the filter screen 6 is tilted, wherein one connecting plate 13 is connected to one side inner wall of the first chamber, and the other connecting plate 13 is connected to the upper end of the second partition plate 8. The tilt direction of the filter screen 6 can be seen in FIG. Figure 2 As shown, the first vacuum pump 2 is arranged below the filter screen 6, so that the exhaust gas can enter the top of the filter screen 6 from the bottom of the filter screen 6. The two connecting plates 13 are integrally formed with the two ends of the frame of the filter screen 6, see Figure 2 As shown, the connecting plate 13 located on the upper side is connected to the inner wall of one side of the first chamber, and a vibration motor 28 is provided at the lower end or the upper end of the connecting plate 13 located on the upper side. When the vibration motor 28 vibrates, it can drive the filter 6 to vibrate, so as to facilitate the dust accumulated on the filter 6 to fall off and prevent the dust from clogging the mesh of the filter 6. The two sides of the frame of the filter 6 are against the inner walls at both ends of the first chamber. The two connecting plates 13 are connected to the second partition 8 or the side wall of the box body 1 by bolts.

[0035] Further, as a preferred embodiment, it further includes a baffle 14, the baffle 14 is arranged in the first chamber, a buffer chamber is formed between the baffle 14 and an inner wall of one side of the first chamber, and the first air pump 2 is arranged in the buffer chamber. Figure 2 As shown, the air outlet of the first vacuum pump 2 is located in the buffer chamber, and the exhaust gas first enters the buffer chamber and then enters the filter screen 6 for filtration. The upper end of the baffle 14 is directly opposite to the connecting plate 13 located on the upper side, which can prevent the dust on the filter screen 6 from falling into the buffer chamber and prevent the air outlet of the first vacuum pump 2 from blowing up the dust accumulated at the bottom of the first chamber.

[0036] Further, as a preferred embodiment, it also includes a deflector 15, the combustion chamber is provided with the deflector 15, the size of the opening at one end of the deflector 15 is larger than the size of the opening at the other end of the deflector 15, and the ignition plate 10 is arranged in an annular shape and distributed on the inner wall of the opening at one end of the deflector 15. Figure 2As shown, the openings at both ends of the air deflector 15 are arranged in an annular shape, which can be rectangular or circular. When the opening of the air deflector 15 is rectangular, the size of the opening refers to the length and width of the opening. When the opening of the air deflector 15 is circular, the size of the opening refers to the diameter of the opening. Figure 2 As shown, the opening on the left side of the deflector 15 is smaller than the opening on the right side, which can reduce the flow rate of the exhaust gas and facilitate the incineration of the exhaust gas.

[0037] Further, as a preferred embodiment, it also includes a second air pump 16, which is provided in the purification chamber and is arranged at the lower end of the first partition plate 7. The air inlet of the second air pump 16 is connected to the combustion chamber through the first air pipe 17, and the air outlet of the second air pump 16 is provided with a second air pipe 18. Figure 2 As shown, a liquid deodorant is provided in the purification chamber, and the second air pipe 18 is inserted into the liquid deodorant. A one-way valve is provided on the second air pipe 18, and the one-way valve is provided in the second air pipe 18 to prevent the liquid deodorant from flowing back into the combustion chamber. After the waste gas is incinerated, the waste gas can be pumped into the liquid deodorant under the action of the second air pump 16, which can cool the waste gas and deodorize it at the same time.

[0038] Further, as a preferred embodiment, it also includes a guide rail 19, a slider 20 and a telescopic rod 21. The guide rail 19 is arranged on the outer wall of the other side of the box body 1. The slider 20 is slidably arranged on the guide rail 19. One end of the telescopic rod 21 is connected to the slider 20, and the other end of the telescopic rod 21 is connected to the other end of the suction pipe 3. The slide rail is provided with a plurality of first positioning holes 23, and the slider 20 is provided with a second positioning hole. The positioning bolts 22 are arranged in the second positioning holes and the corresponding first positioning holes 23. The suction pipe 3 is provided with a bellows section 24, and the bellows section 24 is close to the other end of the suction pipe 3. See Figure 5 As shown, the bellows section 24 can be telescopic, and the slider 20 can slide on the guide rail 19, so as to control the telescopic rod 21 to drive the suction hood 4 to move up and down, and can adapt to plastic processing tables of different heights. Among them, the telescopic rod 21 is a common structure on the market, and it is not limited here. One end of the telescopic rod 21 is welded to the slider 20, and the other end of the telescopic rod 21 is welded to the other end of the suction pipe 3. Among them, except for the bellows section 24, the rest of the suction pipe 3 is made of stainless steel. Among them, the first positioning hole 23 is a bolt hole.

[0039] Among them, see Figure 3 As shown, a PLC controller 25 is provided on the outer wall of the box body 1 , and the PLC controller 25 is used to connect with the first vacuum pump 2 , the second vacuum pump 16 , the ignition tray 10 and the vibration motor 28 .

[0040] A water pipe joint 26 is provided at the bottom of one side of the box body 1, one end of the water pipe joint 26 is connected to the purification chamber, and the other end of the water pipe joint 26 can be connected to an external liquid storage device. Among them, a valve is provided on the water pipe joint 26 to control the opening or closing of the internal channel of the water pipe joint 26.

[0041] When in use, the height of the telescopic rod 21 is adjusted by the slider 20, so that the air hood 4 is adjusted to a specified height, and the position of the slider 20 is fixed by the positioning bolt 22, and then the length of the telescopic rod 21 is adjusted as needed so that the air hood 4 is directly opposite the upper end of the plastic processing table, and then the first vacuum pump 2 starts to work, and the exhaust gas generated during processing is sucked into the first chamber, filtered through the filter 6 and then enters the second chamber, and then enters the combustion chamber, and at the same time, natural gas is pumped into the ignition disk 10, and ignited under the action of the ignition disk 10 and then sprayed from the flamethrower 11, so as to realize high-temperature combustion of the exhaust gas, and the exhaust gas after combustion in the combustion chamber enters the liquid deodorant for deodorization under the action of the second vacuum pump 16, and the deodorized exhaust gas can be discharged through the exhaust pipe 5.

[0042] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic processing waste gas extraction device, characterized in that: The invention comprises a box body, a first vacuum pump, an air suction pipe, an air suction hood, an exhaust pipe, a filter screen, a first partition, a second partition, a third partition, an ignition disc, a flame nozzle and a gas conduit, wherein the first partition and the second partition are arranged in sequence from bottom to top inside the box body, and a top cover is detachably arranged on the upper end of the box body, the lower side of the first partition is a purification chamber, the first partition and the second partition are between a combustion chamber, the upper side of the second partition is a filter chamber, the filter chamber is provided with the third partition, and the third partition divides the filter chamber into first and second partitions which are interconnected. chamber and a second chamber, the first vacuum pump is arranged on an inner wall of one side of the first chamber, the filter is arranged in the first chamber, the second chamber is communicated with the combustion chamber, the combustion chamber is provided with the ignition disk, the ignition disk is provided with a plurality of the flame nozzles, the ignition disk is connected with the gas duct, an exhaust pipe is arranged on one side of the box body, the exhaust pipe is communicated with the purification chamber, the other side of the box body is provided with the suction pipe, one end of the suction pipe is connected with the first vacuum pump, and the other end of the suction pipe is connected with the suction hood.

2. The plastic processing waste gas extraction device according to claim 1, characterized in that: It also includes a connecting plate, two connecting plates are provided at both ends of the filter screen, the filter screen is arranged at an angle, one of the connecting plates is connected to an inner wall of one side of the first chamber, and the other connecting plate is connected to the upper end of the second partition plate.

3. The plastic processing waste gas extraction device according to claim 1, characterized in that: It also includes a baffle, which is arranged in the first chamber, and a buffer chamber is formed between the baffle and an inner wall of one side of the first chamber, and the first air pump is arranged in the buffer chamber.

4. The plastic processing waste gas extraction device according to claim 1, characterized in that: It also includes a deflector cover, which is arranged in the combustion chamber, the size of the opening at one end of the deflector cover is larger than the size of the opening at the other end of the deflector cover, and the ignition disc is arranged in a ring shape and distributed on the inner wall of the opening at one end of the deflector cover.

5. The plastic processing waste gas extraction device according to claim 1, characterized in that: It also includes a second vacuum pump, which is arranged in the purification chamber and is arranged at the lower end of the first partition. The air inlet of the second vacuum pump is connected to the combustion chamber through the first air pipe, and the air outlet of the second vacuum pump is provided with a second air pipe.

6. The plastic processing waste gas extraction device according to claim 5, characterized in that: The purification chamber is provided with a liquid deodorant, the second air pipe is inserted into the liquid deodorant, and the second air pipe is provided with a one-way valve.

7. The plastic processing waste gas extraction device according to claim 1, characterized in that: It also includes a guide rail, a slider and a telescopic rod, wherein the guide rail is arranged on the outer wall of the other side of the box body, the slider is slidably arranged on the guide rail, one end of the telescopic rod is connected to the slider, and the other end of the telescopic rod is connected to the other end of the suction pipe.

8. The plastic processing waste gas extraction device according to claim 7, characterized in that: It also includes positioning bolts. The guide rail is provided with a plurality of first positioning holes, the slider is provided with second positioning holes, and the positioning bolts are arranged in the second positioning holes and the corresponding first positioning holes.

9. The plastic processing waste gas extraction device according to claim 7, characterized in that: The air intake pipe is provided with a bellows section, and the bellows section is close to the other end of the air intake pipe.

Images