Waste gas treatment device for plastic production

Abstract

The utility model discloses a waste gas treatment device for plastic production, which comprises a filter box and an adsorption box, a gas inlet pipe is arranged at the top of the filter box, the bottom of the filter box is connected with a gas guide pipe of the adsorption box, a fan component is mounted at the top of the adsorption box, box covers are mounted at the tops of the filter box and the adsorption box, and a filter plate is fixedly mounted in the filter box. According to the waste gas treatment device for plastic production, the functions of filtration and adsorption are integrated, waste gas is effectively treated, the maintenance efficiency is improved by additionally arranging the drivable scraper blade design and the filter screen convenient for cleaning the blocked filter screen, meanwhile, efficient rotation is achieved through the rotation design of the activated carbon adsorption plate, the waste gas purification effect is enhanced, the overall structural design is reasonable, and the practicability is high. The problems that a filter screen of a traditional waste gas treatment device is easy to block and difficult to clean are effectively solved, and the waste gas treatment efficiency and convenience are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field especially, it relates to a waste gas treatment device for plastic production. BACKGROUND

[0002] In the plastic production process, a large amount of waste gas containing volatile organic compounds (VOCs) will be produced, these waste gases are mainly from the heating, melting, extrusion, injection molding process of plastic raw materials, these waste gases not only contain harmful chemicals, such as benzene, toluene, xylene, etc., but also may contain dust, acid gas and other pollutants, if not treated directly, will cause serious threat to the environment and human health.

[0003] Through the applicant searches, it is found that in the prior art, the waste gas treatment device for plastic production mostly needs to set up two structures of filtration and adsorption, the filtration structure is composed of filter screen structure, and the adsorption is mostly composed of activated carbon plate, for example, the plastic waste gas treatment device disclosed in patent No. CN202087164U is this kind of structure design, but the existing filter screen structure is easy to block after long time use, but it is very difficult to clean up, because the filter screen is installed in the box, it is more time-consuming and laborious to clean up, and it is more troublesome to disassemble, and the adsorption efficiency of the traditional activated carbon plate is not high.

[0004] Therefore, the applicant puts forward a waste gas treatment device for plastic production to solve the problem. UTILITY MODEL CONTENTS

[0005] The utility model provides a waste gas treatment device for plastic production, solves the problem raised in the above background.

[0006] In order to solve the above technical problem, the utility model provides a waste gas treatment device for plastic production, which comprises a filter box and an adsorption box, the filter box is provided with an air inlet pipe at the top and connected with the adsorption box through a gas guide pipe at the bottom, a fan assembly is installed at the top of the adsorption box, a box cover is installed at the top of the filter box and the adsorption box, a filter plate is fixedly installed inside the filter box, a dust discharge port is arranged on the filter plate, a scraper is rotatably installed at the center position of the filter plate, a dust collecting box is installed below the dust discharge port of the filter plate, a protective cover is attached to the top of the dust discharge port of the filter plate, an electric push rod is connected between the top end of the protective cover and the box cover of the filter box, and an activated carbon adsorption plate is rotatably installed between the bottom end and the box cover inside the adsorption box.

[0007] The filter box and the adsorption box are provided with a driving mechanism at the bottom, which is used for driving the scraper and the activated carbon adsorption plate to rotate.

[0008] Further, the driving mechanism comprises a U-shaped frame installed at the lower end of the filter box and the adsorption box, a motor is installed at the bottom end of the U-shaped frame, two pulleys are rotatably installed at the top of the U-shaped frame, the rotating shaft of one pulley is connected with the output shaft of the motor, the top of the pulleys is fixed with shaft A and shaft B respectively, shaft A is rotatably connected with the bottom end of the activated carbon adsorption plate, and shaft B is rotatably connected with the bottom of the filter box, so that the scraper can be driven to rotate.

[0009] Further, a spline sleeve is rotatably installed at the central position of the bottom end of the filter box and the adsorption box, the rotating shafts of the spline sleeve are connected with shaft A and shaft B respectively, spline heads are inserted into the top of the spline sleeve, one spline head is fixed at the bottom of the activated carbon adsorption plate, and the other spline head is fixed at the bottom of the extension shaft, and the extension shaft is rotatably connected with the bottom of the filter plate and connected with the rotating shaft of the scraper.

[0010] Further, the activated carbon adsorption plate is also fixed with a spline head, and the spline head is inserted into the spline sleeve installed at the bottom end of the top cover.

[0011] Further, the protective cover is provided with a notch at the bottom end of one side close to the center of the filter plate, the scraper is located at the dust discharge port in the non-working state and is clamped in the notch of the protective cover.

[0012] Further, a ring-shaped raised ring plate is fixed at the top edge position of the filter plate, and the outer wall of the raised ring plate is aligned with the outer wall of the filter plate.

[0013] Further, the filter plate is fixed with a bolt plate on the four sides, the filter plate is clamped on the support ring plate fixed on the inner wall of the filter box, and the bolt plate is fixed with the support ring plate through bolts.

[0014] Further, the shaft B is composed of two sections, the lower section is fixedly connected with the pulley, the upper section is rotatably connected with the bottom of the filter box, flanges are fixed on the adjacent surfaces of the two sections, and the two flanges are connected through bolts.

[0015] Compared with the related art, the waste gas treatment device for plastic production has the following beneficial effects:

[0016] The waste gas treatment device for plastic production has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The whole three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 The whole three-dimensional structure schematic diagram of the utility model;

[0019] Figure 3 The local three-dimensional structure schematic diagram of the utility model;

[0020] Figure 4 The filter plate three-dimensional structure schematic diagram of the utility model Figure 1 ;

[0021] Figure 5 The filter plate three-dimensional structure schematic diagram of the utility model Figure 2 ;

[0022] Figure 6 The shaft B three-dimensional structure schematic diagram of the utility model.

[0023] Reference signs in the drawing: 1, filter box; 2, adsorption box; 3, gas guide pipe; 4, box cover; 5, air inlet pipe; 7, filter plate; 8, dust outlet; 9, protective cover; 10, electric push rod; 11, scraper; 12, dust receiving box; 13, activated carbon adsorption plate; 14, driving mechanism; 1401, U-shaped frame; 1402, motor; 1403, pulley; 1405, shaft A; 1406, shaft B; 15, spline sleeve; 16, spline shaft; 17, support ring plate; 18, high ring plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] By Figures 1-6The utility model provides a filter box 1 and adsorption box 2, filter box 1 top is equipped with air inlet pipe 5 and bottom and adsorption box 2 connect guide pipe 3, adsorption box 2 top is installed with fan assembly 6 (for the conventional design of existing, namely fan plus duct, here do not repeat, for entering airflow), filter box 1 and adsorption box 2 top all install box cover 4, filter box 1 inside fixed mounting filter plate 7, filter plate 7 is equipped with dust discharging port 8, and filter plate 7 center position rotatory mounting has scraper 11, filter plate 7 installs dust receiving box 12 below dust discharging port 8, filter plate 7 dust discharging port 8 top is pasted with protective cover 9, and protective cover 9 top end and filter box 1's box cover 4 are connected with electric push rod 10, and adsorption box 2 inside bottom and box cover 4 between rotatory mounting activated carbon adsorption plate 13, filter box 1 and adsorption box 2 bottom are installed with drive mechanism 14, are used for driving scraper 11 and activated carbon adsorption plate 13 rotation, can drive respectively, also can drive simultaneously.

[0026] Drive mechanism 14 includes the U-shaped frame 1401 of installation in filter box 1 and adsorption box 2 lower end, and the U-shaped frame 1401 bottom end installs an electric machine 1402, and the U-shaped frame 1401 top rotatory mounting two belt pulleys 1403, and two belt pulleys 1403 are connected with the belt 1404 between, and one belt pulley 1403 pivot shaft butt joint electric machine 1402 output shaft, and belt pulley 1403 top is fixed axle A 1405 and axle B 1406 respectively, fixed axle A 1405 and adsorption box 2 bottom rotatory connection, and axle A 1405 can drive activated carbon adsorption plate 13 rotation, axle B 1406 and filter box 1 bottom rotatory connection, and axle B 1406 can drive scraper 11 rotation, and axle B 1406 is two section type composition structure, namely lower segment fixed butt joint belt pulley 1403, and upper segment and filter box 1 bottom rotatory connection, and the adjacent face of two sections all are fixed with flange plate, and two flange plates can be butt joint through bolt.

[0027] By designing the above structure, when working, the top of the filter box 1 and the adsorption box 2 are both provided with a box cover 4 to protect the internal components and prevent waste gas leakage, then the motor 1402 and the fan assembly 6 are started, the top of the filter box 1 is provided with an air inlet pipe 5 for introducing the waste gas to be treated, the filter plate 7 can be preliminarily filtered, the bottom of the filter box 1 is connected with the adsorption box 2 through the air guide pipe 3, so that the waste gas preliminarily filtered by the filter plate 7 can enter the adsorption box 2 for further treatment, the top of the adsorption box 2 is provided with the fan assembly 6 for providing power for the flow of waste gas, at the same time, after the motor 1402 is started, the belt 1404 drives the two pulleys 1403 to rotate together, so that the shaft A 1405 and the shaft B 1406 rotate, it is noted that at this time the shaft B 1406 only rotates the lower section and is not connected with the upper and lower sections, the scraper 11 does not rotate, at this time the rotation of the activated carbon adsorption plate 13 can increase the contact area of the waste gas with the activated carbon and improve the purification efficiency of the waste gas, and after the work is completed, the motor 1402 and the fan assembly 6 are turned off, when the filter plate 7 needs to be cleaned, the electric push rod 10 is started to move the protective cover 9 upward, the two sections of the shaft B 1406 are connected through the flange and the bolt and nut (it is noted that the nut does not need to be too tight to facilitate installation and disassembly, because it can be cleaned for a few minutes each time, and it is not a long-term connection), then the motor 1402 is started again, so that the shaft B 1406 can rotate as a whole and drive the scraper 11 to rotate for a period of time, which can scrape off the dust on the filter plate 7 and discharge it into the dust collecting box 12 through the dust discharge port 8 for collection, it is noted that a small adsorption device such as a fixed activated carbon plate can be additionally installed at the air outlet end of the fan assembly 6 to avoid a small amount of residual harmful substances from escaping, which will not be described here.

[0028] The spline sleeve 15 is rotatably installed at the bottom center of the filter box 1 and the adsorption box 2, the rotation shafts of the spline sleeve 15 are respectively connected with the shaft A 1405 and the shaft B 1406, the spline heads 16 are inserted into the top of the spline sleeve 15, one spline head 16 is fixed at the bottom of the activated carbon adsorption plate 13, and the other spline head 16 is fixed at the bottom of the extension shaft, the extension shaft is rotatably connected with the bottom of the filter plate 7 and the rotation shaft of the scraper 11, the activated carbon adsorption plate 13 is also fixed with a spline head 16 which is inserted into the inside of the spline sleeve 15 installed at the bottom end of the top box cover 4, the filter plate 7 is fixed with bolt plates on four sides, and the filter plate 7 is placed on the support ring plate 17 fixed on the inner wall of the filter box 1, and the bolt plates are fixed with the support ring plate 17 through bolts.

[0029] Through the above structural design, in the installation optimization, in the assembly, the filter plate 7 is placed on the support ring plate 17 and fixed, at this time, the bottom spline head 16 is inserted into the spline sleeve 15, and then the corresponding box cover 4 is covered, then the activated carbon adsorption plate 13 is placed into the adsorption box 2, the bottom spline head 16 is inserted into the spline sleeve 15, and then the corresponding box cover 4 is covered again, the bottom spline sleeve 15 is also installed on the box cover 4 of the adsorption box 2, and the top spline head 16 of the activated carbon adsorption plate 13 is inserted into the spline sleeve 15, so that the rotating driving structure connection can be completed, and the stability is good, and the disassembly is convenient.

[0030] The protective cover 9 is provided with a notch at the bottom end of the side close to the center of the filter plate 7, the scraper 11 is located at the dust discharge port 8 in the non-working state and is located in the protective cover 9 and is clamped in the notch of the protective cover 9, and the annular raised ring plate 18 is fixed at the top edge position of the filter plate 7.

[0031] In the further optimization of the cleaning structure, the scraper 11 is clamped in the notch of the protective cover 9 in the non-working state, which can play a good protection and limiting effect, avoid dust from adhering to the scraper 11, and also avoid shaking, and at the same time, after each cleaning is completed, the protective cover 9 is reset to play a sealing effect, avoid dust in the dust collecting box 12 from flying during the purification of waste gas, and the raised ring plate 18 avoids the falling of the cleaned dust from the edge of the filter plate 7, and strengthens the protection effect.

[0032] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0033] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for plastic production, comprising a filter box (1) and an adsorption box (2), the filter box (1) is provided with an air inlet pipe (5) at the top and is connected with the air guide pipe (3) at the bottom with the adsorption box (2), the fan assembly (6) is installed at the top of the adsorption box (2), the filter box (1) and the adsorption box (2) are both provided with a box cover (4) at the top, characterized in that: The filter box (1) is internally fixedly installed with a filter plate (7), the filter plate (7) is provided with a dust discharge port (8), a scraper (11) is rotatably installed at the central position of the filter plate (7), the filter plate (7) is installed with a dust receiving box (12) below the dust discharge port (8), the top of the dust discharge port (8) of the filter plate (7) is attached with a protective cover (9), the top end of the protective cover (9) is connected with an electric push rod (10) of the box cover (4) of the filter box (1), and an activated carbon adsorption plate (13) is rotatably installed between the bottom end inside the adsorption box (2) and the box cover (4). The filter box (1) and the adsorption box (2) are installed with a driving mechanism (14) at the bottom, which is used to drive the scraper (11) and the activated carbon adsorption plate (13) to rotate.

2. The exhaust gas treatment device for plastic production according to claim 1, characterized by, The driving mechanism (14) comprises a U-shaped frame (1401) installed at the lower end of the filter box (1) and the adsorption box (2), a motor (1402) is installed at the bottom end of the U-shaped frame (1401), two pulleys (1403) are rotatably installed at the top of the U-shaped frame (1401), a belt (1404) is connected between the two pulleys (1403), and the rotating shaft of one pulley (1403) is connected with the output shaft of the motor (1402), the top of the pulley (1403) is fixedly connected with a shaft A (1405) and a shaft B (1406) respectively, the shaft A (1405) is rotatably connected with the bottom end of the adsorption box (2), the shaft A (1405) can drive the activated carbon adsorption plate (13) to rotate, the shaft B (1406) is rotatably connected with the bottom of the filter box (1), and the shaft B (1406) can drive the scraper (11) to rotate.

3. The exhaust gas treatment device for plastic production according to claim 2, characterized by, The filter box (1) and the adsorption box (2) are rotatably installed with a spline sleeve (15) at the central position of the bottom end, the rotating shafts of the spline sleeve (15) are respectively connected with the shaft A (1405) and the shaft B (1406), the top of the spline sleeve (15) is inserted with a spline head (16), one of the spline heads (16) is fixed at the bottom of the activated carbon adsorption plate (13), and the other spline head (16) is fixed at the bottom of an extension shaft, the extension shaft is rotatably connected with the bottom of the filter plate (7) and connected with the rotating shaft of the scraper (11).

4. The exhaust gas treatment device for plastic production according to claim 3, characterized by, The activated carbon adsorption plate (13) is also fixed with one spline head (16) and inserted into the inside of the spline sleeve (15) installed at the bottom end of the top box cover (4).

5. The exhaust gas treatment device for plastic production according to claim 1, characterized by, The protective cover (9) is provided with a notch at the bottom end of the side close to the center of the filter plate (7), the scraper (11) is located at the dust discharge port (8) in the non-working state and is located in the protective cover (9) and is clamped in the notch of the protective cover (9).

6. The exhaust gas treatment device for plastic production according to claim 5, characterized by The top edge position of the filter plate (7) is fixedly provided with an annular raised ring plate (18), and the outer wall of the raised ring plate (18) is aligned with the outer wall of the filter plate (7).

7. The exhaust gas treatment device for plastic production according to claim 5, characterized by, The filter plate (7) is fixedly provided with a bolt plate on four sides, the filter plate (7) is clamped on the support ring plate (17) fixedly installed on the inner wall of the filter box (1), and the bolt plate is fixedly connected with the support ring plate (17) through bolts.

8. The exhaust gas treatment device for plastic production according to claim 2, characterized by, The shaft B (1406) is composed of two sections, i.e. a lower section fixedly connected with the belt pulley (1403) and an upper section rotatably connected with the bottom of the filter box (1), and the adjacent surfaces of the two sections are fixed with flanges, and the two flanges can be connected through bolts.

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