Plastic melting waste gas treatment device

Abstract

The utility model discloses a plastic melting waste gas treatment device and relates to the technical field of waste gas treatment. The solar water heater comprises a base cylinder, a heat absorption assembly is arranged on the lower surface of the base cylinder, the heat absorption assembly comprises a heat conduction gas-collecting hood sleeved with a heat insulation gas-collecting hood, a water storage cavity is formed by the inner side wall of the heat insulation gas-collecting hood and the inner side wall of the heat conduction gas-collecting hood, and the upper surface of the water storage cavity is in threaded connection with a screw plug; a processing assembly is arranged on the upper surface of the base cylinder. The heat absorption assembly is arranged, heat in plastic melting waste gas is recycled, heat energy is wasted, the high-temperature plastic melting waste gas is prevented from scalding parts in the base cylinder, the treatment assembly is arranged, impurities on the liquid storage ring, the upper filter plate and the lower filter plate are cleaned, and the waste gas treatment effect is improved. The plastic melting waste gas can be better subjected to peculiar smell removal and filtration operation, and the treatment efficiency and quality of the plastic melting waste gas are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waste gas treatment technical field, especially relate to a plastic melting waste gas treatment device. BACKGROUND

[0002] Plastic melting is an important step of plastic processing, and specifically refers to the process of converting plastic from solid to molten state. Plastic generates waste gas during the melting process, and plastic melting waste gas treatment device is needed to treat the waste gas before discharge to reduce environmental pollution.

[0003] After searching, the patent document with patent publication number CN220899873U discloses a plastic melting waste gas treatment device, which includes a gas collecting hood, a filter frame and a purification frame. The filter frame is arranged between the top of the gas collecting hood and the bottom of the purification frame. Inside the filter frame, a first filter plate and a second filter plate are inserted along one side wall. A drive assembly is provided on one side of the filter frame. The drive assembly is used to drive the first filter plate and the second filter plate to move back and forth. Four steel brush rollers are arranged inside the filter frame. The first filter plate is located between two of the steel brush rollers, and the second filter plate is located between the other two steel brush rollers. The four steel brush rollers are connected to the drive assembly through a linkage assembly. This design solves the problem of cleaning the filter plates in the waste gas collecting and treating hood. The filter plates are manually removed and cleaned every day, which makes the cleaning process more convenient.

[0004] The filter frame is arranged between the top of the gas collecting cover and the bottom of the purification frame, the first filter plate and the second filter plate are inserted into the inside of the filter frame along one side wall thereof, the waste gas enters the filter frame after entering the gas collecting cover and can rise to the inside of the filter frame, and the waste gas passes through the first filter plate and the second filter plate in the filter frame, so that the impurities in the waste gas are filtered, but the heat in the plastic melting waste gas cannot be recycled and utilized, the waste of heat energy is increased during the treatment of the plastic melting waste gas, and even the components in the base cylinder are scalded; the liquid storage pipe is arranged in the top port portion of the purification frame, the liquid inlet head is arranged on the liquid storage pipe, the inside of the liquid storage pipe is provided with the spray hole, the liquid inlet head can be connected with the external pipeline to introduce the modified strong oxygen water into the inside of the liquid storage pipe, after the waste gas is filtered by the first filter plate and the second filter plate, the waste gas continuously enters the purification frame, the modified strong oxygen water in the liquid storage pipe can be atomized and sprayed out through the spray hole and mixed with the waste gas to catalytically filter the waste gas more comprehensively, the two flow guide plates are oppositely and spacedly arranged on the inside of the purification frame, the receiving plate is arranged between the bottoms of the two flow guide plates, the flow-through hole is arranged on the receiving plate, the liquid discharge pipe is arranged on one side of the purification frame, after the waste gas is filtered by the first filter plate and the second filter plate, the waste gas continuously rises to the below of the receiving plate in the purification frame and then enters the above of the receiving plate through the flow-through hole and continuously rises, the waste gas in the above of the receiving plate can be mixed with the modified strong oxygen water atomized and sprayed out through the spray hole during the rising process to catalytically treat the waste gas to remove the peculiar smell in the waste gas, the flow guide plates and the receiving plate can receive the strong oxygen water waste liquid generated during the catalytic treatment of the waste gas, and the waste liquid can be discharged through the liquid discharge pipe, but it is inconvenient to clean the blockage in the spray hole, the modified strong oxygen water in the liquid storage pipe cannot be sprayed out, and the treatment effect of the plastic melting waste gas is reduced.

[0005] To solve the above problems, we provide a plastic melting waste gas treatment device. The utility model discloses a plastic melting waste gas treatment device

[0006] The utility model discloses a plastic melting waste gas treatment device, through setting up heat absorbing component, realize the recycling of heat, and avoid the scalding of the components in the base cylinder by high temperature plastic melting waste gas, and set up treatment component, and the impurities on the liquid storage ring, upper filter plate and lower filter plate are treated simultaneously, the plastic melting waste gas is filtered and peculiar smell is removed better, and the technical problems in the background technology of the plastic melting waste gas treatment device are solved.

[0007] To solve the above problems, the utility model is realized by the following technical schemes:

[0008] The utility model discloses a kind of plastic melting waste gas treatment devices, including base cylinder, heat absorption assembly is arranged on the lower surface of the base cylinder, the heat absorption assembly includes the heat conduction gas collecting cover of sleeveing in the heat insulation gas collecting cover inside, the inner side wall of the heat insulation gas collecting cover and the inner side wall of heat conduction gas collecting cover form water storage cavity, the upper surface of the water storage cavity is connected with screw plug by screw thread;Processing assembly is arranged on the upper surface of the base cylinder, the processing assembly includes the cylinder cover of being arranged on the upper surface of processing cylinder, the processing cylinder is arranged on the upper surface of base cylinder, the inner top of the base of the upper surface middle portion of the cylinder cover is connected with motor, the lower surface of the motor is connected with the rotating shaft of cylinder cover and the middle portion rotationally connected of cylinder cover, brush and cleaning brush are connected on the circumferential wall of the rotating shaft, the inner side wall of the liquid storage ring connected with the lower surface of the cylinder cover is contacted with brush, the circumferential wall of the liquid storage ring is equipped with spray hole, the lower surface of the liquid storage ring is connected with the lower surface of the guide plate of the symmetric connection of the lower surface of the symmetric connection of the two outer side walls of the holding box, the circumferential wall of the holding box is equipped with through slot, the inside of the base cylinder is sequentially sleeved with upper filter plate and lower filter plate from top to bottom, and the upper and lower surfaces of the upper filter plate and lower filter plate are contacted with cleaning brush.

[0009] The utility model further sets up, the lower portion of the outer circumferential wall of the base cylinder is sleeved with lower sleeve seat, the lower annular seat of the upper portion of the outer circumferential wall of the heat insulation gas collecting cover is connected on the lower surface of lower sleeve seat, and the lower end of the screw connected on the upper surface of lower annular seat is connected on the upper surface of lower annular seat by screw thread.

[0010] The utility model further sets up, the side wall of the water inlet pipe of the upper portion of the outer circumferential wall of the heat insulation gas collecting cover is connected with valve, the upper end of the water outlet pipe connected with the lower surface of the heat insulation gas collecting cover is communicated with the inside of water storage cavity, and the side wall of the water outlet pipe is connected with valve.

[0011] The utility model further sets up, the upper portion of the outer circumferential wall of the base cylinder is sleeved with upper sleeve seat, the upper annular seat of the lower portion of the outer circumferential wall of the processing cylinder is connected on the upper surface of upper sleeve seat, and the lower end of the screw connected on the upper surface of upper annular seat is connected on the upper surface of upper sleeve seat by screw thread.

[0012] The utility model further sets up, the upper portion of the outer circumferential wall of the processing cylinder is sleeved with connecting seat and is connected on the lower surface of cylinder cover, and the lower end of the screw connected on the upper surface of connecting seat is connected on the upper surface of connecting seat by screw thread.

[0013] The utility model further sets up, the inner end of the liquid inlet pipe of the upper portion of the outer circumferential wall of the processing cylinder is communicated with the inside of liquid storage ring, the inner end of the liquid outlet pipe of the lower portion of the outer circumferential wall of the processing cylinder is communicated with the inside of holding box, and the side wall of the liquid inlet pipe and liquid outlet pipe is connected with valve.

[0014] The utility model further sets up, the upper surface of the cylinder cover is annular array connection's seat is L type, the lower surface of seat is screwed the bolt, the lower extreme of exhaust pipe connected on the upper surface of cylinder cover communicates with the inside of processing cylinder, the lateral wall of exhaust pipe is connected with the valve.

[0015] The utility model further sets up, the upper surface of the upper filter plate is annular array connection's the upper surface of connecting frame is connected on the lower surface of the receiving box, the lower extreme of connecting rod connected on the lower surface of the upper filter plate is connected on the upper surface of the lower filter plate.

[0016] The utility model has the following beneficial effects:

[0017] 1, the utility model discloses a heat absorbing component is set up, and the plastic melt exhaust gas enters the inside of heat conducting gas collecting cover, and the water in the water storage cavity absorbs the heat in the plastic melt exhaust gas, realizes the recovery to the heat energy, reduces the waste of heat energy, and reduces the temperature of plastic melt exhaust gas, effectively prevents the scalding of the component in the base cylinder inside by high temperature plastic melt exhaust gas.

[0018] 2, the utility model discloses a processing component is set up, and the upper filter plate and the lower filter plate filter the plastic melt exhaust gas that enters the inside of base cylinder, and the modified strong oxygen water in the liquid storage ring enters the inside of processing cylinder through the blast hole, and the plastic melt exhaust gas after filtering contacts with the modified strong oxygen water in the inside of processing cylinder, realizes the deodorization operation to plastic melt exhaust gas, and the exhaust gas is discharged through the exhaust pipe, and the motor is started, and the shaft rotates, and the brush rotates and cleans the sundries on the liquid storage ring, and the modified strong oxygen water is better sprayed to the inside of processing cylinder, and the deodorization operation to plastic melt exhaust gas is better carried out, and the sundries on the upper filter plate and the lower filter plate are cleaned by the rotating cleaning brush, and the plastic melt exhaust gas in the inside of base cylinder is better filtered, and it is favorable to promote the processing efficiency and quality to plastic melt exhaust gas. ACCURACY

[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will to the embodiment description needed to use the drawing briefly introduce.

[0020] Figure 1 It is a kind of plastic melt exhaust gas processing device's three-dimensional schematic Figure 1 ;

[0021] Figure 2 It is a kind of plastic melt exhaust gas processing device's three-dimensional schematic Figure 2 ;

[0022] Figure 3 It is the structure exploded schematic view of heat absorbing component;

[0023] Figure 4A schematic diagram showing the connection between the heat-insulating gas collection hood, the base cylinder, the treatment cylinder, and the cylinder cover;

[0024] Figure 5 Schematic diagram of the processing component Figure 1 ;

[0025] Figure 6 Schematic diagram of the processing component Figure 2 .

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Base cylinder, 101-Lower sleeve, 101a-Upper sleeve, 102-Screw, 2-Heat absorption assembly, 201-Heat insulation gas collection hood, 201a-Heat conduction gas collection hood, 201b-Water storage chamber, 202-Water inlet pipe, 202a-Water outlet pipe, 203-Lower annular seat, 204-Screw plug, 3-Treatment assembly, 301-Treatment cylinder, 301a-Upper annular seat, 301b-Connecting seat, 302-Liquid inlet pipe, 302a-Liquid outlet pipe, 303- Cylinder cover, 303a-exhaust pipe, 303b-valve, 303c-mounting base, 303d-bolt, 304-motor, 304a-base, 305-shaft, 305a-cleaning brush, 305b-brush, 306-lower filter plate, 306a-upper filter plate, 307-collection box, 307a-through groove, 307b-guide plate, 307c-liquid storage ring, 307d-spray hole, 308-connecting bracket, 308a-connecting rod. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figure 1 and Figure 4 This utility model is a plastic melting waste gas treatment device, including a base cylinder 1, a lower sleeve 101, an upper sleeve 101a and a screw 102. The base cylinder 1 is set to connect the suction component 2 and the treatment component 3.

[0031] Specifically, an upper sleeve 101a is fitted onto the upper part of the outer peripheral sidewall of the base cylinder 1, and a lower sleeve 101 is fitted onto the lower part of the outer peripheral sidewall of the base cylinder 1. A screw 102 is threaded onto the upper surface of the lower sleeve 101.

[0032] Further, the screw 102 is arranged in a ring array;

[0033] The operation process of the embodiment is that the heated plastic melt exhaust gas is filtered in the inside of the base cylinder 1.

[0034] Embodiment 2

[0035] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , on the basis of the specific embodiment one, the heat absorbing assembly 2 is provided, the heat absorbing assembly 2 contains the heat insulation gas collecting cover 201, the heat conduction gas collecting cover 201a, the water storage cavity 201b, the water inlet pipe 202, the water outlet pipe 202a, the lower annular seat 203 and the screw plug 204, the water inlet pipe 202 is arranged, which is used for supplementing water to the inside of the water storage cavity 201b, the water outlet pipe 202a is arranged, which is used for discharging the water in the water storage cavity 201b after heat absorption, and the water storage cavity 201b absorbs the heat in the plastic melt exhaust gas, avoiding the high-temperature plastic melt exhaust gas from scalding the upper part of the base cylinder 1;

[0036] Specifically, the heat insulation gas collecting cover 201 is arranged on the lower surface of the base cylinder 1, and the outer peripheral side wall of the heat insulation gas collecting cover 201 is sleeved with the lower annular seat 203, the lower annular seat 203 is locked and connected on the lower surface of the lower sleeve seat 101 through the screw 102, the heat conduction gas collecting cover 201a is sleeved in the inside of the heat insulation gas collecting cover 201, and the inner side wall of the heat insulation gas collecting cover 201 and the inner side wall of the heat conduction gas collecting cover 201a form the water storage cavity 201b, the outer peripheral side wall of the heat insulation gas collecting cover 201 is communicated with the water inlet pipe 202 on the upper part, and the lower surface of the heat insulation gas collecting cover 201 is communicated with the water outlet pipe 202a, the side walls of the water inlet pipe 202 and the water outlet pipe 202a are both connected with the valve 303b, and the upper surface of the water storage cavity 201b is threadedly connected with the screw plug 204;

[0037] Further, the screw plug 204 is in a hollow structure;

[0038] The operation process of the embodiment is that the valve 303b on the water inlet pipe 202 is opened, water is introduced into the inside of the water storage cavity 201b through the water inlet pipe 202, the plastic melt exhaust gas enters from the lower end of the heat conduction gas collecting cover 201a, the water in the inside of the water storage cavity 201b absorbs the heat in the plastic melt exhaust gas, and the plastic melt exhaust gas after cooling enters the inside of the base cylinder 1, after the valve 303b on the water outlet pipe 202a is opened, the water in the inside of the water storage cavity 201b is discharged through the water outlet pipe 202a.

[0039] Embodiment 3

[0040] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 andFigure 6 On the basis of embodiment one and embodiment two, the processing assembly 3 is provided, which comprises a processing cylinder 301, an upper annular seat 301a, a connecting seat 301b, a liquid inlet pipe 302, a liquid outlet pipe 302a, a cylinder cover 303, an exhaust pipe 303a, a valve 303b, a mounting seat 303c, a bolt 303d, a motor 304, a machine base 304a, a rotating shaft 305, a cleaning brush 305a, a hairbrush 305b, a lower filter plate 306, an upper filter plate 306a, a receiving box 307, a flow guide plate 307b, a liquid storage ring 307c, a connecting frame 308, and a connecting rod 308a. The motor 304 is controlled to drive the cleaning brush 305a and the hairbrush 305b to rotate, so as to clean the sundries on the lower filter plate 306, the upper filter plate 306a and the liquid storage ring 307c, better filter the plastic melting waste gas, better remove the odor of the plastic melting waste gas, and improve the processing effect of the plastic melting waste gas;

[0041] Specifically, the processing cylinder 301 is arranged on the upper surface of the base cylinder 1, and the outer peripheral side wall lower part of the processing cylinder 301 is sleeved with an upper annular seat 301a, the upper annular seat 301a is locked and connected on the upper surface of the upper sleeve seat 101a through the screw 102, the upper surface of the processing cylinder 301 is provided with a cylinder cover 303, and the outer peripheral side wall upper part of the processing cylinder 301 is sleeved with a connecting seat 301b, the cylinder cover 303 is locked and connected on the upper surface of the connecting seat 301b through the screw 102, the upper surface of the cylinder cover 303 is connected with a placing seat 303c, the lower surface of the placing seat 303c is threadedly connected with a bolt 303d, a machine seat 304a is connected on the upper surface of the cylinder cover 303, and the inner top of the machine seat 304a is connected with a motor 304, the lower end surface of the motor 304 is connected with a rotating shaft 305, the lower surface of the cylinder cover 303 is connected with a liquid storage ring 307c, the inner side wall of the liquid storage ring 307c is provided with a spray hole 307d, the lower surface of the liquid storage ring 307c is connected with a flow guide plate 307b, the lower surface of the flow guide plate 307b is connected with a receiving box 307, the side wall of the receiving box 307 is provided with a through slot 307a, the inner end of the liquid inlet pipe 302 communicated on the side wall of the processing cylinder 301 communicates with the inside of the liquid storage ring 307c, the inner end of the liquid outlet pipe 302a communicated on the side wall of the processing cylinder 301 communicates with the inside of the receiving box 307, the side wall of the liquid inlet pipe 302 and the liquid outlet pipe 302a is connected with a valve 303b, the upper filter plate 306a and the lower filter plate 306 are rotationally connected on the peripheral side wall of the rotating shaft 305, and the upper filter plate 306a and the lower filter plate 306 are sleeved in the inside of the base cylinder 1, the upper surface of the upper filter plate 306a is connected with a connecting frame 308, the upper surface of the connecting frame 308 is connected on the lower surface of the receiving box 307, the lower surface of the upper filter plate 306a is connected with a connecting rod 308a, the lower end of the connecting rod 308a is connected on the upper surface of the lower filter plate 306, the side wall of the rotating shaft 305 is connected with a brush 305b and a cleaning brush 305a, the brush 305b is in contact with the inner side wall of the liquid storage ring 307c, the upper and lower sides of the upper filter plate 306a and the lower filter plate 306 are in contact with the cleaning brush 305a, the exhaust pipe 303a is communicated on the upper surface of the cylinder cover 303, and the side wall of the exhaust pipe 303a is connected with a valve 303b;

[0042] Further, the placing seat 303c is arranged in an annular array, and the placing seat 303c is in an L shape, the cleaning brush 305a is provided with two groups, and each group is provided with two cleaning brushes 305a arranged in an upper and lower symmetry, the two through slots 307a are arranged in a symmetry, the two flow guide plates 307b are arranged in a symmetry, the spray hole 307d is arranged in an annular array, the connecting frame 308 is arranged in an annular array, and the connecting rod 308a is arranged in an annular array;

[0043] The operation process of the embodiment is as follows: the plastic melt exhaust gas entering the inside of the base cylinder 1 is filtered by the lower filter plate 306 and the upper filter plate 306a, the filtered plastic melt exhaust gas passes through the inside of the treatment cylinder 301, the valve 303b is opened, the modified strong oxygen water is introduced into the inside of the liquid storage ring 307c through the liquid inlet pipe 302, the modified strong oxygen water in the inside of the liquid storage ring 307c is sprayed in the inside of the treatment cylinder 301 through the spray hole 307d, and the modified strong oxygen water contacts the plastic melt exhaust gas entering the inside of the treatment cylinder 301 to remove the odor in the plastic melt exhaust gas, and the modified strong oxygen water falls downward in the inside of the receiving box 307, the modified strong oxygen water in the inside of the receiving box 307 is discharged through the liquid outlet pipe 302a, and the plastic melt exhaust gas with the odor removed is discharged through the exhaust pipe 303a; the motor 304 is started, the rotating shaft 305 rotates, the brush 305b rotates to clean the sundries on the liquid storage ring 307c, and the rotating rotating shaft 305 drives the cleaning brush 305a to rotate to clean the sundries on the upper filter plate 306a and the lower filter plate 306.

[0044] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A plastic melt off-gas treatment device comprising a base cylinder (1), characterized in that: The lower surface of the base cylinder (1) is provided with a heat absorption assembly (2), which comprises a heat-conducting gas collecting cover (201a) sleeved in a heat-insulating gas collecting cover (201), the inner side wall of the heat-insulating gas collecting cover (201) and the inner side wall of the heat-conducting gas collecting cover (201a) form a water storage cavity (201b), and the upper surface of the water storage cavity (201b) is threadedly connected with a screw plug (204). The upper surface of the base cylinder (1) is provided with a processing assembly (3), which comprises a cylinder cover (303) arranged on the upper surface of a processing cylinder (301), the processing cylinder (301) is arranged on the upper surface of the base cylinder (1), the inner top of a machine base (304a) connected to the middle of the upper surface of the cylinder cover (303) is connected with a motor (304), the lower surface of the motor (304) is connected with a rotating shaft (305) which is rotationally connected with the middle of the cylinder cover (303), the circumferential side wall of the rotating shaft (305) is connected with a brush (305b) and a cleaning brush (305a), the inner side wall of a liquid storage ring (307c) connected to the lower surface of the cylinder cover (303) is in contact with the brush (305b), the circumferential side wall of the liquid storage ring (307c) is provided with a spray hole (307d), the lower surface of the liquid storage ring (307c) is connected with a receiving box (307) which is connected to the lower surface of a guide plate (307b) which is symmetrically arranged on the lower surface of the liquid storage ring (307c), the two outer side walls of the receiving box (307) are symmetrically provided with a through groove (307a), and the inside of the base cylinder (1) is sequentially sleeved with an upper filter plate (306a) and a lower filter plate (306) from top to bottom, and the upper and lower surfaces of the upper filter plate (306a) and the lower filter plate (306) are in contact with the cleaning brush (305a).

2. The plastic melt off-gas treatment device of claim 1, wherein: The lower part of the outer circumferential side wall of the base cylinder (1) is sleeved with a lower sleeve (101), the lower annular seat (203) sleeved on the upper part of the outer circumferential side wall of the heat-insulating gas collecting cover (201) is arranged on the lower surface of the lower sleeve (101), and the lower end of the screw (102) threadedly connected on the upper surface of the lower sleeve (101) is threadedly connected on the upper surface of the lower annular seat (203).

3. A plastic melt off-gas treatment device according to claim 2, characterized in that: The side wall of the water inlet pipe (202) communicated with the upper part of the outer circumferential side wall of the heat-insulating gas collecting cover (201) is connected with a valve (303b), the upper end of the water outlet pipe (202a) connected to the lower surface of the heat-insulating gas collecting cover (201) is communicated with the inside of the water storage cavity (201b), and the side wall of the water outlet pipe (202a) is connected with a valve (303b).

4. The plastic melt off-gas treatment device of claim 1, wherein: The upper part of the outer circumferential side wall of the base cylinder (1) is sleeved with an upper sleeve (101a), the upper annular seat (301a) sleeved on the lower part of the outer circumferential side wall of the processing cylinder (301) is arranged on the upper surface of the upper sleeve (101a), and the lower end of the screw (102) threadedly connected on the upper surface of the upper annular seat (301a) is threadedly connected on the upper surface of the upper sleeve (101a).

5. A plastic melt off-gas treatment device according to claim 4, characterized in that: The connecting seat (301b) of the upper part of the outer circumferential side wall of the processing cylinder (301) is abutted on the lower surface of the cylinder cover (303), the lower end of the screw (102) threadedly connected on the upper surface of the cylinder cover (303) is threadedly connected on the upper surface of the connecting seat (301b).

6. A plastic melt off-gas treatment device according to claim 4, characterized in that: The inner end of the liquid inlet pipe (302) connected on the upper part of the outer circumferential side wall of the processing cylinder (301) is communicated with the inside of the liquid storage ring (307c), the inner end of the liquid outlet pipe (302a) communicated on the lower part of the outer circumferential side wall of the processing cylinder (301) is communicated with the inside of the receiving box (307), the side wall of the liquid inlet pipe (302) and the liquid outlet pipe (302a) is connected with the valve (303b) respectively.

7. The plastic melt off-gas treatment device of claim 1, wherein: The arranging seat (303c) arranged in annular array on the upper surface of the cylinder cover (303) is in L shape, the lower surface of the arranging seat (303c) is threadedly connected with the bolt (303d), the lower end of the exhaust pipe (303a) connected on the upper surface of the cylinder cover (303) is communicated with the inside of the processing cylinder (301), the side wall of the exhaust pipe (303a) is connected with the valve (303b).

8. The plastic melt off-gas treatment device of claim 1, wherein: The upper surface of the connecting frame (308) connected in annular array on the upper surface of the upper filter plate (306a) is connected on the lower surface of the receiving box (307), the lower end of the connecting rod (308a) connected in annular array on the lower surface of the upper filter plate (306a) is connected on the upper surface of the lower filter plate (306).

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