Waste gas treatment device

Abstract

The utility model relates to the technical field of plastic processing, and discloses a waste gas treatment device which comprises a gas collecting hood arranged above equipment; the conveying pipe is connected with the gas collecting hood; the one-way air inlet structure is arranged in the conveying pipe; the cavity is connected with the conveying pipe, a piston is installed in the cavity, and the piston is connected with a driving part. According to the utility model, the piston is driven by the driving part to reciprocate, the exhaust gas is sucked into the conveying pipe by the one-way air inlet structure, and then the exhaust gas is treated, so that the noise generated by high-speed rotation of the fan can be avoided, and the problem of higher noise reduction cost is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic processing, specifically relates to a waste gas treatment device. BACKGROUND

[0002] In some plastic processing technology, through the open mill, filter machine, laminating machine and other equipment in turn, the plastic raw material is heated and calendered to form a sheet, the above-mentioned equipment will produce harmful gas in the process of heating plastic, and the harmful gas is usually treated by waste gas treatment equipment. The existing waste gas treatment equipment, including box, diffusion port, adsorption drawer, controller and exhaust fan, the box top end is fixedly connected with diffusion port, the box right end upper portion is equipped with the controller, the box front end is equipped with the adsorption drawer, the box front end below the adsorption drawer is equipped with water inlet, the box front end bottom is equipped with exhaust fan, the box inside diffusion port below is equipped with two groups of air inlet fan, the exhaust fan and air inlet fan are electrically connected with the controller, the equipment can quickly absorb and treat waste gas through the cooperation between the box, diffusion port, adsorption drawer, air inlet fan, activated carbon bag and controller, the setting of diffusion port can increase the absorption range of waste gas, and the cooperation between the two air inlet fans and activated carbon bag can adsorb and treat harmful substances contained in the waste gas absorbed into the box.

[0003] The existing waste gas treatment equipment has the following problems: due to the noise reduction requirement in the factory, the fan is used to treat the waste gas, and the noise reduction cost is high.

[0004] Based on the above situation, a waste gas treatment device is needed to solve the problem of high noise reduction cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at: for the existing waste gas treatment equipment, due to the noise reduction requirement in the factory, the fan is used to treat the waste gas, and the noise reduction cost is high, the problem of high noise reduction cost is solved.

[0006] The technical scheme of the utility model is as follows:

[0007] A waste gas treatment device, comprising:

[0008] The gas collecting hood is arranged above the equipment.

[0009] The conveying pipe is connected with the gas collecting hood.

[0010] The one-way air inlet structure is arranged in the conveying pipe.

[0011] The cavity is connected with the conveying pipe, the piston is installed in the cavity, and the piston is connected with the driving part.

[0012] The existing waste gas treatment equipment, due to the noise reduction requirement in the factory, the fan is used to treat the waste gas, and the noise reduction cost is high, in the scheme, the piston is driven to reciprocate by the driving part, the waste gas is sucked into the conveying pipe by the one-way air inlet structure, and then the waste gas treatment is carried out, the noise generated by the high-speed rotation of the fan can be avoided, and the problem of high noise reduction cost is solved.

[0013] Further, the specific structure of the one-way air inlet structure is not uniquely limited, wherein one feasible scheme is that the one-way air inlet structure comprises two support frames, and elastic valve petals are installed on the two support frames, when the piston moves away from the conveying pipe, the upper elastic valve petal is closed, the lower elastic valve petal is opened, the waste gas flows into the cavity, then the piston approaches the conveying pipe, the lower elastic valve petal is closed, the upper elastic valve petal is opened, and the gas is discharged, and the reciprocation is realized.

[0014] Further, the specific structure of the driving part is not uniquely limited, wherein one feasible scheme is that the driving part comprises an intermediate rod connected with the piston, and a rotating rod connected with the intermediate rod, when the rotating rod drives the intermediate rod and the piston to move in sequence, the circular motion of the rotating rod can be converted into the linear reciprocating motion of the piston.

[0015] Further, in order to adjust the waste gas suction efficiency, one feasible scheme is that a plurality of adjusting holes are formed in the rotating rod, when the intermediate rod is matched with different adjusting holes, the stroke of the piston is adjusted, and the waste gas suction efficiency can be adjusted.

[0016] Further, in order to adjust the waste gas suction efficiency, in other schemes, the rotating rod is connected with a speed changer, and the speed changer is connected with a motor, when the movement frequency of the piston is adjusted by the speed changer, the waste gas suction efficiency can be adjusted.

[0017] Further, in order to avoid dust and other impurities from entering the cavity, one feasible scheme is that a filter screen is installed between the conveying pipe and the cavity, when the impurities are filtered by the filter screen, the dust and other impurities can be prevented from entering the cavity.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] One, the piston is driven to reciprocate by the driving part, the waste gas is sucked into the conveying pipe by the one-way air inlet structure, and then the waste gas treatment is carried out, the noise generated by the high-speed rotation of the fan can be avoided, and the problem of high noise reduction cost is solved.

[0020] II. Since the one-way air inlet structure comprises two support frames and elastic valve petals are installed on the two support frames, when the piston moves away from the conveying pipe, the elastic valve petals on the top are closed and the elastic valve petals on the bottom are opened, waste gas flows into the cavity, then the piston moves close to the conveying pipe, the elastic valve petals on the bottom are closed and the elastic valve petals on the top are opened, gas is discharged, and the reciprocation is realized.

[0021] III. Since the driving part comprises an intermediate rod connected with the piston, the intermediate rod is connected with a rotating rod, the rotating rod drives the intermediate rod and the piston to move in sequence, and the circular motion of the rotating rod can be converted into the linear reciprocating motion of the piston. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an overall structural schematic view of an embodiment of the utility model;

[0023] Figure 2 It is a conveying pipe cross section structural schematic view of an embodiment of the utility model;

[0024] Figure 3 It is Figure 2 It is an enlarged view of A in the figure;

[0025] Figure 4 It is a cavity cross section structural schematic view of an embodiment of the utility model;

[0026] Figure 5 It is Figure 4 It is an enlarged view of B in the figure.

[0027] REFERENCE SIGNS:

[0028] 1, gas collecting cover; 2, conveying pipe; 3, one-way air inlet structure; 4, cavity; 5, filter screen; 6, adsorption drawer;

[0029] 31, support frame; 32, elastic valve petal;

[0030] 41, piston; 42, driving part;

[0031] 421, intermediate rod; 422, rotating rod; 423, adjusting hole; 424, speed changer; 425, motor;

[0032] 61, air inlet. DETAILED DESCRIPTION

[0033] It is to be understood that the terms "first" and "second" and similar relating terms are used merely to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Also, the terms "comprising", "containing" or any other similar words are intended to encompass non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent to such process, method, article or apparatus. Without more limitation, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0034] The features and performances of the present application will be further described in detail below in connection with embodiments.

[0035] Embodiment:

[0036] Please refer to Figure 1 , Figure 2 and Figure 4 , a waste gas treatment device, comprising:

[0037] The gas collecting hood 1 is arranged above the equipment;

[0038] The conveying pipe 2 is connected with the gas collecting hood 1;

[0039] The one-way air inlet structure 3 is arranged in the conveying pipe 2;

[0040] The cavity 4 is connected with the conveying pipe 2, and the piston 41 is installed in the cavity 4, and the piston 41 is connected with the driving part 42.

[0041] The existing waste gas treatment equipment has the problem of high noise reduction cost due to the noise reduction requirement in the factory. In the present scheme, the piston 41 is driven to move back and forth by the driving part 42, the waste gas is sucked into the conveying pipe 2 by the one-way air inlet structure 3, and then the waste gas is treated, which can avoid the noise generated by the high-speed rotation of the fan and solve the problem of high noise reduction cost.

[0042] Referring to Figure 2 and Figure 3 , the present scheme does not uniquely limit the specific structure of the one-way air inlet structure 3, wherein one feasible scheme is that the one-way air inlet structure 3 includes two support frames 31 and the elastic valve 32 is installed on each of the two support frames 31. When this scheme is adopted, when the piston 41 moves away from the conveying pipe 2, the upper elastic valve 32 is closed and the lower elastic valve 32 is opened, the waste gas flows into the cavity 4, then the piston 41 approaches the conveying pipe 2, the lower elastic valve 32 is closed and the upper elastic valve 32 is opened, and the gas is discharged, and the reciprocation is repeated.

[0043] Referring to Figure 1 and Figure 3 Optionally, in the embodiment, the conveying pipe 2 is provided with an adsorption drawer 6, the adsorption drawer 6 is provided with activated carbon, and the lower end face of the adsorption drawer 6 is provided with a plurality of air inlets 61.

[0044] Referring to Figure 4 and Figure 5 The specific structure of the driving part 42 is not uniquely limited, and one of the possible solutions is that the driving part 42 comprises an intermediate rod 421 connected with the piston 41, and the intermediate rod 421 is connected with a rotating rod 422. When this solution is adopted, the rotating rod 422 drives the intermediate rod 421 and the piston 41 in sequence to move, and the circular motion of the rotating rod 422 can be converted into the linear reciprocating motion of the piston 41.

[0045] In order to facilitate the adjustment of the exhaust gas suction efficiency, one of the possible solutions is that the rotating rod 422 is provided with a plurality of adjusting holes 423. When this solution is adopted, the stroke of the piston 41 is adjusted by matching the intermediate rod 421 with different adjusting holes 423, and the exhaust gas suction efficiency can be adjusted.

[0046] In order to facilitate the adjustment of the exhaust gas suction efficiency, in some other solutions, the rotating rod 422 is connected with a speed changer 424, and the speed changer 424 is connected with a motor 425. The motor 425 is installed on an open mill, a filter or a laminator. When this solution is adopted, the moving frequency of the piston 41 is adjusted by the speed changer 424, and the exhaust gas suction efficiency is adjusted.

[0047] Referring to Figure 2 In order to avoid dust and other impurities from entering the cavity 4, one of the possible solutions is that a filter screen 5 is installed between the conveying pipe 2 and the cavity 4. When this solution is adopted, the impurities are filtered by the filter screen 5, the dust and other impurities can be prevented from entering the cavity 4, and the air tightness of the piston 41 is ensured.

[0048] In order to solve the problem of high cost of noise reduction, in the present solution, the piston 41 is driven to move back and forth by the driving part 42, the exhaust gas is sucked into the conveying pipe 2 by the one-way air inlet structure 3, and then the exhaust gas is treated. The noise generated by the high-speed rotation of the fan can be avoided, and the problem of high cost of noise reduction is solved.

[0049] In order to make the exhaust gas enter the conveying pipe 2 in one direction, in the present solution, since the one-way air inlet structure 3 comprises two support frames 31 and each of the two support frames 31 is provided with an elastic valve 32, when the piston 41 moves away from the conveying pipe 2, the upper elastic valve 32 is closed and the lower elastic valve 32 is opened, the exhaust gas flows into the cavity 4, then the piston 41 approaches the conveying pipe 2, the lower elastic valve 32 is closed and the upper elastic valve 32 is opened, the gas is discharged, and the above process is repeated.

[0050] In order to make the piston 41 linear reciprocating motion, in the present scheme, since the driving part 42 comprises the intermediate rod 421 connected with the piston 41, the intermediate rod 421 is connected with the rotating rod 422, the rotating rod 422 drives the intermediate rod 421 and the piston 41 to move in turn, and the circular motion of the rotating rod 422 can be converted into the linear reciprocating motion of the piston 41.

[0051] The above description of disclosed embodiments enables one skilled in the art to make or use the application. Numerous modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste gas treatment device, characterized in that, include: A gas collection hood (1) is installed above the equipment; The delivery pipe (2) is connected to the gas collection hood (1); A one-way air intake structure (3) is provided inside the delivery pipe (2); The cavity (4) is connected to the delivery pipe (2), and a piston (41) is installed inside the cavity (4). The piston (41) is connected to a drive unit (42).

2. The waste gas treatment device according to claim 1, characterized in that, The one-way air intake structure (3) includes two support frames (31) and each of the two support frames (31) is equipped with an elastic valve disc (32).

3. The waste gas treatment device according to claim 1, characterized in that, The drive unit (42) includes an intermediate rod (421) connected to the piston (41), and the intermediate rod (421) is connected to a rotating rod (422).

4. The waste gas treatment device according to claim 3, characterized in that, The rotating rod (422) has several adjustment holes (423).

5. The waste gas treatment device according to claim 3, characterized in that, The rotating rod (422) is connected to a gearbox (424), and the gearbox (424) is connected to a motor (425).

6. The waste gas treatment device according to claim 1, characterized in that, A filter screen (5) is installed between the delivery pipe (2) and the cavity (4).

Images