An internal mixer exhaust gas collection and treatment system

Abstract

The present application relates to plastic processing equipment technical field, especially to a kind of waste gas collection and processing system of internal mixer.Its technical scheme includes internal mixer body, filter box, dust hopper, base and purification tank, the internal mixer body is communicated with filter box by waste gas discharge pipeline, the filter box inside is provided with sealing seat, the inner wall of sealing seat is rotatably installed with filter cartridge, the dust hopper front end is provided with controller, the filter cartridge inside is provided with installation pipe, the filter box one end is provided with air pump, the air pump one end is provided with with installation pipe intercommunication's gas pipe, the installation pipe outer wall is provided with air hole, the filter box is communicated with purification tank and is installed with transfer pipe, the transfer pipe inside is provided with airflow sensor two.The present application is monitored by airflow sensor two to the flow detection of filtered gas, through data comparison, automatically control the dust cleaning of filter cartridge, optimize the use of filter assembly, avoid the problem of large energy consumption of regular dust cleaning.

Description

Technical Field

[0001] This invention relates to the field of plastic processing equipment technology, and in particular to a system for collecting and treating exhaust gas from a mixing mill. Background Technology

[0002] An internal mixer is a processing equipment used for mixing materials such as rubber and plastics. It is mainly used for mixing, crushing, tableting, and drying. Internal mixers can achieve uniform mixing and plasticizing of materials. During operation, heating and extrusion processes may generate waste gases containing dust, odors, and other pollutants.

[0003] Internal mixers typically use baghouse dust collectors for dust removal and activated carbon for odor adsorption and purification. During this process, the baghouse dust collector periodically activates its cleaning mechanism. However, the dust content in the exhaust gas from the internal mixer changes in real time. When the dust content is high, regular cleaning can lead to premature clogging of the filter components, reducing dust filtration efficiency. Conversely, when the dust content is low, regular cleaning increases the energy consumption of the jet airflow. Therefore, those skilled in the art have provided an internal mixer exhaust gas collection and treatment system to address the problems mentioned in the background section. Summary of the Invention

[0004] The purpose of this invention is to address the problem in the background art that the dust in the exhaust gas generated by the internal mixer changes in real time. When the dust content is high, regular cleaning will cause the filter components to become clogged prematurely, reducing the dust filtration efficiency. When the dust content is low, regular cleaning will lead to increased energy consumption of the jet airflow. This invention proposes an exhaust gas collection and treatment system for internal mixers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a system for collecting and treating exhaust gas from a mixer, comprising a mixer body, a filter box, an ash hopper, a base, and a purification box. A filter box is located on one side of the mixer body, an ash hopper is located below the filter box, and a purification box is located on one side of the filter box. The mixer body and the filter box are connected by an exhaust gas discharge pipe. A sealing seat is located inside the filter box, and a filter cartridge is rotatably mounted on the inner wall of the sealing seat. A controller is located at the front end of the ash hopper. An installation pipe is located inside the filter cartridge. An air pump is located at one end of the filter box, and an air delivery pipe connected to the installation pipe is located at one end of the air pump. An air vent is arranged in a ring-shaped array on the outer wall of the installation pipe. A transfer pipe is connected between the filter box and the purification box, and a second airflow sensor is located inside the transfer pipe. An inspection port is located at the front end of the purification box, and a closing cover is located at the front end of the inspection port. Equally spaced support mesh covers are located inside the purification box.

[0006] Preferably, an airflow sensor is installed inside the exhaust gas discharge pipe. The airflow sensor detects the flow rate of the gas delivered through the exhaust gas discharge pipe.

[0007] Preferably, a conveying pipe is connected inside the filter box via a fixed rod, and a connecting pipe located inside the conveying pipe is provided at the upper end of the filter cartridge and connected to the inner wall of the filter box via a connecting rod. The conveying pipe is supported inside the filter box, and the connecting pipe connected to the filter cartridge is linked with the filter cartridge.

[0008] Preferably, a gear ring is fitted onto the outer wall of the connecting pipe, a motor is installed at one end of the conveying pipe, and a gear that meshes with the gear ring is installed at the lower end of the motor. The gear pushes the gear ring, causing the connecting pipe to rotate, which in turn causes the filter cartridge to rotate.

[0009] Preferably, a control valve is installed inside the air delivery pipe. The control valve controls the opening and closing of the air delivery pipe to prevent filtered gas from entering the air delivery pipe.

[0010] Preferably, a guide bucket is provided between the filter box and the ash hopper, and a guide hood is fitted onto the outer side of the lower end of the filter cartridge. The guide bucket guides the dust falling from the filter cartridge, and the guide hood prevents the dust from directly entering the ring track.

[0011] Preferably, a support platform is provided inside the lower end of the filter box, and the support platform has discharge grooves arranged in a circular array inside. A circular track is provided at the upper end of the support platform, and a bottom ring is provided at the lower end of the filter cartridge. Ball bearings arranged in a circular array and rolled inside the track are rotatably mounted on the lower end of the bottom ring. Dust falling from the filter cartridge passes through the discharge grooves and the support platform, while the ball bearings roll inside the track, providing rolling support to the bottom of the rotating filter cartridge.

[0012] Preferably, a flow channel is provided between the supporting mesh covers, and a discharge pipe is provided at the upper end of the purification box. Both the discharge pipe and the transfer pipe are equipped with fans, and a gas sensor is installed inside the discharge pipe. Gas entering the filter box is transported through the flow channel and then discharged to the outside through the discharge pipe.

[0013] Preferably, the front end of the closed cover is provided with a connecting seat, and the upper end of the base is provided with symmetrically distributed bearing brackets. A rotating shaft is rotatably installed inside the brackets between the connecting seats, and a second motor with its output end connected to the rotating shaft is provided at one end of each bearing bracket. The second motor drives the rotating shaft to rotate, which in turn drives the closed cover to rotate through the connecting seats, thereby controlling the opening and closing of the inspection port.

[0014] Preferably, the steps for using the exhaust gas collection and treatment system are as follows:

[0015] S1: The waste gas generated during the plastic production process of the internal mixer is transported to the filter box through the waste gas emission pipe. Dust in the waste gas is captured as it passes through the filter cartridge. The filtered waste gas is then transported to the purification box via transfer rollers. Activated carbon is contained in the support mesh cover inside the purification box. Due to its large surface area and microporous structure, the activated carbon effectively adsorbs organic gases and volatile substances. Through physical adsorption, pollutants in the waste gas are fixed on the surface of the activated carbon. The waste gas is then discharged to the outside through the emission pipe, thus achieving the treatment and collection of waste gas generated during the internal mixer's processing.

[0016] S2: The air pump delivers high-pressure gas through the air supply pipe to the installation pipe, and then sprays it out through the air holes. The delivered airflow acts on the filter cartridge, blowing away the dust adhering to the outer wall of the filter cartridge. The dust is then removed and collected through the ash hopper. During this process, the exhaust gas delivered by the exhaust pipe is detected by airflow sensor one, and the filtered gas is detected by airflow sensor two. During this process, the control box receives real-time signals from airflow sensor one and airflow sensor two, analyzes and processes them through the processing module inside the airflow sensor, and controls the operation of the air pump of the dust removal component through the execution module. When the flow difference between airflow sensor one and airflow sensor two is large and exceeds the threshold, the dust removal component cleans the filter cartridge. If the difference between the detection data of airflow sensor one and airflow sensor two is still large after dust removal, the machine needs to be stopped for maintenance. At the same time, the gas sensor detects the purified gas output from the exhaust pipe and detects the exhaust gas. If the pollutant content in the detected gas exceeds the threshold, it indicates that the activated carbon adsorption capacity is insufficient, and the staff is reminded to replace the activated carbon.

[0017] S3: When the filter cartridge filters the exhaust gas, the motor starts and the gear rotates. The gear drives the gear ring to rotate, and the rotational force is applied to the filter cartridge. The filter cartridge rotates to prevent the exhaust gas delivered to the filter box through the exhaust gas discharge pipe from always corresponding to the same area of ​​the filter cartridge. The rotation of the filter cartridge achieves uniform treatment of the exhaust gas delivered through the exhaust gas discharge pipe. Because the surface area of ​​the filter cartridge is large, the rotation of the filter cartridge extends the dust removal and suction time.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The present invention introduces the waste gas generated during the plastic processing into the purification chamber through the exhaust gas emission pipe. The gas is filtered through the filter cartridge, and the dust mixed in the waste gas is intercepted by the filter cartridge and output through the transfer pipe. During this process, the flow sensor detects the gas flow rate. If the flow rate exceeds the set threshold, the signal is transmitted to the control box. The processing module inside the control box processes the signal and sends a signal through the execution module to control the air pump to deliver airflow to blow the filter cartridge. Through intelligent control, effective cleaning is performed during the cleaning process, reducing energy consumption and improving the stability of equipment use. Attached Figure Description

[0020] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a top-section three-dimensional structural diagram of the filter box of the present invention;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of the filter box of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the support platform of the present invention, viewed from below.

[0025] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the purification box of the present invention;

[0026] Figure 7 This is a bottom-view perspective view of the purification chamber of the present invention.

[0027] Figure 8 This is a three-dimensional structural schematic diagram of the main cross-section of the delivery pipe of the present invention.

[0028] Reference numerals in the attached diagram: 1. Internal mixer body; 2. Filter box; 3. Controller; 4. Ash hopper; 5. Exhaust gas discharge pipe; 6. Base; 7. Closing cover; 8. Airflow sensor one; 9. Gas sensor; 10. Airflow sensor two; 11. Control valve; 12. Transfer pipe; 13. Motor one; 14. Gear; 15. Gear ring; 16. Air hole; 17. Air pump; 18. Air delivery pipe; 19. Purification box; 20. Connecting seat; 21. Motor two; 22. Rotating shaft; 23. Discharge pipe; 24. Filter cartridge; 25. Support platform; 26. Guide hopper; 27. Bearing bracket; 28. Mounting pipe; 29. ​​Sealing seat; 30. Conveying pipe; 31. Discharge trough; 32. Ring rail; 33. Bottom ring; 34. Guide hood; 35. Ball bearing; 36. Support mesh cover; 37. Flow channel; 38. Inspection port. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 8 The present invention provides four embodiments:

[0031] Example 1:

[0032] A system for collecting and treating exhaust gas from an internal mixer includes an internal mixer body 1, a filter box 2, an ash hopper 4, a base 6, and a purification box 19. The filter box 2 is located on one side of the internal mixer body 1, the ash hopper 4 is located below the filter box 2, and the purification box 19 is located on one side of the filter box 2. The internal mixer body 1 and the filter box 2 are connected by an exhaust gas discharge pipe 5. A sealing seat 29 is located inside the filter box 2, and a filter cartridge 24 is rotatably installed on the inner wall of the sealing seat 29. A controller 3 is located at the front end of the ash hopper 4, and an installation pipe 28 is located inside the filter cartridge 24. An air pump 17 is located at one end of the filter box 2, and an air supply pipe 18 connected to the installation pipe 28 is located at one end of the air pump 17. The outer wall of the installation pipe 28 is provided with air holes 16 arranged in a ring array.

[0033] The waste gas generated during the production of plastics by the internal mixer 1 enters the filter box 2. When the waste gas passes through the filter cartridge 24, the dust inside the waste gas is intercepted, thus achieving the filtration treatment of the waste gas. The air pump 17 delivers high-pressure airflow through the air delivery pipe 18 into the installation pipe 28. The airflow acts on the filter cartridge 24 through the air holes 16 inside the installation pipe 28, blowing the dust adhering to the filter cartridge 24. The dust adhering to the filter cartridge 24 is removed, and the dust is collected through the dust hopper 4, thus achieving the filtration treatment and collection of the waste gas.

[0034] A control valve 11 is installed inside the air supply pipe 18;

[0035] An airflow sensor 2 10 is installed inside the transfer pipe 12.

[0036] An airflow sensor 8 is installed inside the exhaust gas emission pipe 5;

[0037] The exhaust gas duct 5 delivers airflow into the purification chamber 19. The airflow sensor detects the airflow rate of the exhaust gas, and the second airflow sensor 10 detects the filtered gas. The airflow rate difference between the input and output gases is within the threshold range, indicating that the filter cartridge 24 is in acceptable condition. If the airflow rate difference detected by the first airflow sensor 8 and the second airflow sensor 10 is large, it indicates that the filter cartridge 24 may be clogged and needs to be cleaned. The cleaning is performed by the controller 3, which can achieve precise cleaning as needed to reduce energy consumption.

[0038] Example 2:

[0039] The equipment includes a mixer body 1, a filter box 2, an ash hopper 4, a base 6, and a purification box 19. The filter box 2 is located on one side of the mixer body 1, the ash hopper 4 is located below the filter box 2, and the purification box 19 is located on one side of the filter box 2. The mixer body 1 and the filter box 2 are connected by an exhaust gas discharge pipe 5. The filter box 2 has a sealing seat 29 inside, and a filter cartridge 24 is rotatably installed on the inner wall of the sealing seat 29. The ash hopper 4 has a controller 3 at the front end, and the filter cartridge 24 has an installation pipe 28 inside. The filter box 2 has an air pump 17 at one end, and an air supply pipe 18 connected to the installation pipe 28 is located at one end of the air pump 17. The installation pipe 28 has air holes 16 arranged in a ring array on its outer wall.

[0040] The waste gas generated during the production of plastics by the internal mixer 1 enters the filter box 2. When the waste gas passes through the filter cartridge 24, the dust inside the waste gas is intercepted, thus achieving the filtration treatment of the waste gas. The air pump 17 delivers high-pressure airflow through the air delivery pipe 18 into the installation pipe 28. The airflow acts on the filter cartridge 24 through the air holes 16 inside the installation pipe 28, blowing the dust adhering to the filter cartridge 24. The dust adhering to the filter cartridge 24 is removed, and the dust is collected through the dust hopper 4, thus achieving the filtration treatment and collection of the waste gas.

[0041] A control valve 11 is installed inside the air supply pipe 18;

[0042] An airflow sensor 2 10 is installed inside the transfer pipe 12.

[0043] An airflow sensor 8 is installed inside the exhaust gas emission pipe 5;

[0044] The exhaust gas duct 5 delivers airflow into the purification chamber 19. The airflow sensor detects the airflow rate of the exhaust gas, and the second airflow sensor 10 detects the filtered gas. The airflow rate difference between the input and output gases is within the threshold range, indicating that the filter cartridge 24 is in acceptable condition. If the airflow rate difference detected by the first airflow sensor 8 and the second airflow sensor 10 is large, it indicates that the filter cartridge 24 may be clogged and needs to be cleaned. The cleaning is performed by the controller 3, which can achieve precise cleaning as needed to reduce energy consumption.

[0045] The filter box 2 is connected to the conveying pipe 30 by a fixed rod. The filter cylinder 24 is provided with a connecting pipe at the upper end, which is connected to the inner wall of the filter box 2 by a connecting rod and is located inside the conveying pipe 30.

[0046] A gear ring 15 is sleeved on the outer wall of the connecting pipe, and a motor 13 is provided at one end of the conveying pipe 30. A gear 14 that meshes with the gear ring 15 is provided at the lower end of the motor 13.

[0047] A guide hopper 26 is provided between the filter box 2 and the ash hopper 4, and a guide hood 34 is sleeved on the outer side of the lower end of the filter cartridge 24;

[0048] The filter box 2 has a support platform 25 at the lower end, and the support platform 25 has a discharge groove 31 arranged in a ring array. The support platform 25 has a ring track 32 arranged in a ring at the upper end. The filter cartridge 24 has a bottom ring 33 at the lower end, and the bottom ring 33 has balls 35 arranged in a ring array and rolled inside the ring track 32.

[0049] The filter cartridge 24 can rotate to continuously correspond to the inlet of the exhaust gas emission pipe 5 at different positions. The filter cartridges 24 at different positions filter the input exhaust gas. By using the large surface area of ​​the filter cartridge 24 itself to filter the exhaust gas through rotation, the different positions of the filter cartridge 24 are fully utilized, thereby extending the maintenance cycle of the filter cartridge 24. When the filter cartridge 24 rotates, the bottom rotates inside the ring rail 32 through the ball bearings 35. The filter cartridge 24 is stable when rotating. The falling dust is intercepted by the guide hood 34 and flows to the outside of the ring rail 32, improving the dust accumulation inside the ring rail 32.

[0050] Example 3:

[0051] The equipment includes a mixer body 1, a filter box 2, an ash hopper 4, a base 6, and a purification box 19. The filter box 2 is located on one side of the mixer body 1, the ash hopper 4 is located below the filter box 2, and the purification box 19 is located on one side of the filter box 2. The mixer body 1 and the filter box 2 are connected by an exhaust gas discharge pipe 5. The filter box 2 has a sealing seat 29 inside, and a filter cartridge 24 is rotatably installed on the inner wall of the sealing seat 29. The ash hopper 4 has a controller 3 at the front end, and the filter cartridge 24 has an installation pipe 28 inside. The filter box 2 has an air pump 17 at one end, and an air supply pipe 18 connected to the installation pipe 28 is located at one end of the air pump 17. The installation pipe 28 has air holes 16 arranged in a ring array on its outer wall.

[0052] The waste gas generated during the production of plastics by the internal mixer 1 enters the filter box 2. When the waste gas passes through the filter cartridge 24, the dust inside the waste gas is intercepted, thus achieving the filtration treatment of the waste gas. The air pump 17 delivers high-pressure airflow through the air delivery pipe 18 into the installation pipe 28. The airflow acts on the filter cartridge 24 through the air holes 16 inside the installation pipe 28, blowing the dust adhering to the filter cartridge 24. The dust adhering to the filter cartridge 24 is removed, and the dust is collected through the dust hopper 4, thus achieving the filtration treatment and collection of the waste gas.

[0053] A control valve 11 is installed inside the air supply pipe 18;

[0054] An airflow sensor 2 10 is installed inside the transfer pipe 12.

[0055] An airflow sensor 8 is installed inside the exhaust gas emission pipe 5;

[0056] The exhaust gas duct 5 delivers airflow into the purification chamber 19. The airflow sensor detects the airflow rate of the exhaust gas, and the second airflow sensor 10 detects the filtered gas. The airflow rate difference between the input and output gases is within the threshold range, indicating that the filter cartridge 24 is in acceptable condition. If the airflow rate difference detected by the first airflow sensor 8 and the second airflow sensor 10 is large, it indicates that the filter cartridge 24 may be clogged and needs to be cleaned. The cleaning is performed by the controller 3, which can achieve precise cleaning as needed to reduce energy consumption.

[0057] The filter box 2 is connected to the conveying pipe 30 by a fixed rod. The filter cylinder 24 is provided with a connecting pipe at the upper end, which is connected to the inner wall of the filter box 2 by a connecting rod and is located inside the conveying pipe 30.

[0058] A gear ring 15 is sleeved on the outer wall of the connecting pipe, and a motor 13 is provided at one end of the conveying pipe 30. A gear 14 that meshes with the gear ring 15 is provided at the lower end of the motor 13.

[0059] A guide hopper 26 is provided between the filter box 2 and the ash hopper 4, and a guide hood 34 is sleeved on the outer side of the lower end of the filter cartridge 24;

[0060] The filter box 2 has a support platform 25 at the lower end, and the support platform 25 has a discharge groove 31 arranged in a ring array. The support platform 25 has a ring track 32 arranged in a ring at the upper end. The filter cartridge 24 has a bottom ring 33 at the lower end, and the bottom ring 33 has balls 35 arranged in a ring array and rolled inside the ring track 32.

[0061] The filter cartridge 24 can rotate to continuously correspond to the inlet of the exhaust gas emission pipe 5 at different positions. The filter cartridges 24 at different positions filter the input exhaust gas. By using the large surface area of ​​the filter cartridge 24 itself to filter the exhaust gas through rotation, the different positions of the filter cartridge 24 are fully utilized, thereby extending the maintenance cycle of the filter cartridge 24. When the filter cartridge 24 rotates, the bottom rotates inside the ring rail 32 through the ball bearings 35. The filter cartridge 24 is stable when rotating. The falling dust is intercepted by the guide hood 34 and flows to the outside of the ring rail 32, improving the dust accumulation inside the ring rail 32.

[0062] The filter box 2 is connected to the purification box 19 and is equipped with a transfer pipe 12. The purification box 19 has an inspection port 38 at the front end and a closing cover 7 at the front end of the inspection port 38. The purification box 19 is equipped with equidistantly distributed support mesh covers 36 inside.

[0063] A flow channel 37 is provided between the support mesh covers 36, and a discharge pipe 23 is provided at the upper end of the purification box 19. Both the discharge pipe 23 and the transfer pipe 12 are equipped with fans, and a gas sensor 9 is installed inside the discharge pipe 23.

[0064] The front end of the closed cover 7 is provided with a connecting seat 20, the upper end of the base 6 is provided with symmetrically distributed bearing brackets 27, and a rotating shaft 22 is rotatably installed inside the bracket between the connecting seats 20. One end of the bearing bracket 27 is provided with a motor 21 whose output end is connected to the rotating shaft 22.

[0065] The filtered exhaust gas enters the purification chamber 19 and is adsorbed by activated carbon. Harmful substances in the exhaust gas are adsorbed. After the activated carbon is saturated, the motor 21 drives the rotating shaft 22 to rotate, which drives the closing cover 7 to rotate through the connecting seat 20. The closing cover 7 opens and closes automatically. The activated carbon can be replaced through the inspection port 38, making the purification chamber 19 easy to maintain.

[0066] Example 4:

[0067] The operating steps for the exhaust gas collection and treatment system are as follows:

[0068] S1: The waste gas generated during the plastic production process of the internal mixer body 1 is transported to the filter box 2 through the waste gas emission pipe 5. Dust in the waste gas is captured by the filter cartridge 24. The filtered waste gas is then transported to the purification box 19 through the transfer roller. Activated carbon is contained in the support mesh cover 36 inside the purification box 19. Due to its large surface area and microporous structure, the activated carbon effectively adsorbs organic gases and volatile substances. Through physical adsorption, pollutants in the waste gas are fixed on the surface of the activated carbon. The waste gas is then transported to the outside through the discharge pipe 23, thus realizing the treatment and collection of waste gas generated during the processing of the internal mixer body 1.

[0069] S2: Air pump 17 delivers high-pressure gas through air supply pipe 18 to installation pipe 28, and then ejects it through air hole 16. The delivered airflow acts on filter cartridge 24, blowing away the dust adhering to the outer wall of filter cartridge 24. The dust is then removed and collected through ash hopper 4. During this process, the exhaust gas delivered by exhaust gas discharge pipe 5 is detected by airflow sensor 1 8, and the filtered gas is detected by airflow sensor 2 10. The control box receives real-time signals from airflow sensor 1 8 and airflow sensor 2 10, and analyzes and processes them through the processing module inside the airflow sensors. The system controls the operation of the air pump 17 of the cleaning component through the execution module. When the flow difference between the airflow sensor 1 and the airflow sensor 2 exceeds the threshold, the cleaning component cleans the filter cartridge 24. If the difference between the detection data of the airflow sensor 1 and the airflow sensor 2 still exceeds the threshold after cleaning, the system needs to be shut down for maintenance. At the same time, the gas sensor 9 detects the purified gas output from the discharge pipe 23. The gas sensor 9 also detects the emitted gas. If the content of pollutants in the detected gas exceeds the threshold, it indicates that the activated carbon adsorption capacity is insufficient, and the staff is reminded to replace the activated carbon.

[0070] S3: When the filter cartridge 24 filters the exhaust gas, the motor starts the gear 14 to rotate, the gear 14 drives the gear ring 15 to rotate, and the rotational force is applied to the filter cartridge 24. The filter cartridge 24 rotates to prevent the exhaust gas delivered to the filter box 2 through the exhaust gas discharge pipe 5 from always corresponding to the same area of ​​the filter cartridge 24. The rotation of the filter cartridge 24 achieves uniform treatment of the exhaust gas delivered by the exhaust gas discharge pipe 5. Because the surface area of ​​the filter cartridge 24 is large, the rotation of the filter cartridge 24 extends the dust removal and suction.

[0071] The above specific embodiments are merely several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0072] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An internal mixer off-gas collecting and processing system comprising an internal mixer body (1), a filter box (2), an ash hopper (4), a base (6) and a purification box (19), characterized in that: A filter box (2) is provided on one side of the internal mixer body (1), and an ash hopper (4) is provided below the filter box (2). A purification box (19) is provided on one side of the filter box (2). The internal mixer body (1) and the filter box (2) are connected by an exhaust gas discharge pipe (5). A sealing seat (29) is provided inside the filter box (2), and a filter cylinder (24) is rotatably installed on the inner wall of the sealing seat (29). A controller (3) is provided at the front end of the ash hopper (4). The filter cylinder (24) contains... The filter box (2) is equipped with an installation pipe (28). An air pump (17) is installed at one end of the filter box (2). An air supply pipe (18) connected to the installation pipe (28) is installed at one end of the air pump (17). An air hole (16) is arranged in a ring array on the outer wall of the installation pipe (28). A transfer pipe (12) is installed between the filter box (2) and the purification box (19). An airflow sensor (10) is installed inside the transfer pipe (12). An inspection port (38) is opened at the front end of the purification box (19). The inspection port (38) is provided with a closed cover (7) at its front end, and the purification box (19) is provided with equidistantly distributed support mesh covers (36); the filter box (2) is connected to a conveying pipe (30) by a fixed rod, and the filter cylinder (24) is provided with a connecting pipe at its upper end, which is connected to the inner wall of the filter box (2) by a connecting rod and located inside the conveying pipe (30); the outer wall of the connecting pipe is fitted with a toothed ring (15), and a motor (13) is provided at one end of the conveying pipe (30). (13) A gear (14) meshing with a gear ring (15) is provided at the lower end; a support platform (25) is provided inside the lower end of the filter box (2), and a discharge groove (31) arranged in a ring array is provided inside the support platform (25). A ring rail (32) is provided at the upper end of the support platform (25), and a bottom ring (33) is provided at the lower end of the filter cylinder (24). A ball bearing (35) arranged in a ring array and rolled inside the ring rail (32) is rotatably installed at the lower end of the bottom ring (33).

2. An internal mixer exhaust gas collection and treatment system according to claim 1, characterized in that: An airflow sensor (8) is installed inside the exhaust gas emission pipe (5).

3. An internal mixer exhaust gas collection and treatment system according to claim 2, characterized in that: The air supply pipe (18) is equipped with a control valve (11).

4. An internal mixer exhaust gas collection and treatment system according to claim 3, characterized in that: A guide bucket (26) is provided between the filter box (2) and the ash hopper (4), and a guide hood (34) is sleeved on the outer side of the lower end of the filter cylinder (24).

5. An internal mixer exhaust gas collection and treatment system according to claim 4, characterized in that: A flow channel (37) is provided between the support mesh cover (36), and a discharge pipe (23) is provided at the upper end of the purification box (19). Both the discharge pipe (23) and the transfer pipe (12) are equipped with fans, and a gas sensor (9) is provided inside the discharge pipe (23).

6. An internal mixer exhaust gas collection and treatment system according to claim 5, characterized in that: The front end of the closed cover (7) is provided with a connecting seat (20), the upper end of the base (6) is provided with symmetrically distributed bearing brackets (27), a rotating shaft (22) is provided between the connecting seats (20) and rotatably installed inside the bracket, and a motor (21) with an output end connected to the rotating shaft (22) is provided at one end of the bearing bracket (27).

7. An internal mixer exhaust gas collection and treatment system according to claim 6, characterized in that: The operating steps for the exhaust gas collection and treatment system are as follows: S1: The waste gas generated during the plastic production process of the internal mixer (1) is transported to the filter box (2) through the waste gas discharge pipe (5). When passing through the filter cartridge (24), the dust in the waste gas is captured. The filtered waste gas is transported to the purification box (19) through the transfer roller. The support mesh cover (36) inside the purification box (19) contains activated carbon. Due to its large surface area and microporous structure, activated carbon can effectively adsorb organic gases and volatile substances. Through physical adsorption, the pollutants in the waste gas are fixed on the surface of the activated carbon. The waste gas is transported to the outside through the discharge pipe (23), thus realizing the treatment and collection of the waste gas generated by the internal mixer (1). S2: The air pump (17) delivers high-pressure gas through the air delivery pipe (18) to the installation pipe (28), and sprays it out through the air hole (16). The delivered airflow acts on the filter cartridge (24), blowing away the dust on the outer wall of the filter cartridge (24). The dust adhering to the outer wall of the filter cartridge (24) is removed and collected through the ash hopper (4). During this process, the exhaust gas delivered by the exhaust gas discharge pipe (5) is detected by the airflow sensor one (8), and the filtered gas is detected by the airflow sensor two (10). During this process, the control box receives the real-time signals transmitted by the airflow sensor one (8) and the airflow sensor two (10), and processes them through the processing module inside the airflow sensor. The system performs analysis and processing, and controls the operation of the air pump (17) of the cleaning component through the execution module. When the flow difference between the air flow sensor 1 (8) and the air flow sensor 2 (10) is large and exceeds the threshold, the cleaning component cleans the filter cartridge (24). If the difference between the detection data of the air flow sensor 1 (8) and the air flow sensor 2 (10) is still large after cleaning, the machine needs to be stopped for maintenance. At the same time, the gas sensor (9) detects the purified gas output from the discharge pipe (23), and the gas sensor (9) detects the emitted gas. When the content of pollutants inside the detected gas exceeds the threshold, it indicates that the activated carbon adsorption capacity is insufficient, and the staff is reminded to replace the activated carbon. S3: When the filter cartridge (24) filters the exhaust gas, the motor starts the gear (14) to rotate, the gear (14) pushes the gear ring (15) to rotate, and the rotational force is applied to the filter cartridge (24). The filter cartridge (24) rotates to prevent the exhaust gas delivered to the filter box (2) through the exhaust gas discharge pipe (5) from always corresponding to the same area of ​​the filter cartridge (24). The rotation of the filter cartridge (24) realizes the uniform treatment of the exhaust gas delivered by the exhaust gas discharge pipe (5). Because the surface area of ​​the filter cartridge (24) is large, the filter cartridge (24) extends the dust removal and suction by rotating.

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