A device for reducing carbon and emission of plastic processing flue gas

Abstract

The application belongs to the technical field of dust collectors, and particularly relates to a plastic processing flue gas carbon reduction and emission reduction device, which comprises a pulse dust collector composed of a shell, an air inlet pipe, a side tank, an air outlet pipe and a filter cartridge. The side tank is fixed to one side of the shell, the air outlet pipe is connected to the top of the side tank, and the air inlet pipe is connected to the top of the shell. Compressed gas enters the filter cartridge to push the shuttle-shaped guide cover to slide on the central shaft. Since the side surface of the shuttle-shaped guide cover is arc-shaped, when the compressed gas contacts the shuttle-shaped guide cover, the compressed gas is passively redirected in addition to the axial pressure exerted on the shuttle-shaped guide cover, so that the path of the compressed gas changes from the axial penetration into the filter cartridge to the perpendicular axial penetration into the filter cartridge, so that the compressed gas is directly sprayed on the inner wall of the filter cartridge. With the injection of multiple sections of compressed gas, the shuttle-shaped guide cover can be continuously extruded to slide on the central shaft, so that the compressed gas is passively redirected to be sprayed on multiple areas of the inner wall of the filter cartridge, thereby achieving uniform spraying and cleaning of the inner wall of the filter cartridge.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of dust collectors, and particularly relates to a plastic processing flue gas carbon reduction and emission reduction device. BACKGROUND

[0002] Plastic product processing is often accompanied by the generation of flue gas, and the industry prefers to use pulse filter cartridge dust collectors to treat the flue gas.

[0003] In the prior art, when the pulse filter cartridge dust collector is used to treat flue gas, the filter cartridge is mainly used to remove harmful impurities such as dust in the flue gas, and after the flue gas enters the treatment box, it passes through the microfiltration membrane on the surface of the filter cartridge into the inside of the filter cartridge and is discharged through one end of the filter cartridge.

[0004] After a long time of use, part of the dust will block the microfiltration membrane, causing the pressure difference between the inside and outside of the microfiltration membrane to increase. At this time, based on sensor detection, the pulse back blowing system can be automatically started to clean the filter cartridge. However, when the pulse back blowing system is started to clean, the compressed gas is in the form of a jet, and diffusion requires time, so the degree to which the one end of the filter cartridge close to the pulse back blowing system and the other end far from the pulse back blowing system are affected by the compressed gas is completely different. It can be predicted that after the compressed gas is jetted, diffusion requires a certain amount of time, and flow also requires a certain amount of time, so the cleaning effect on the front and middle parts of the filter cartridge should be better than that on the tail part.

[0005] Therefore, the application provides a plastic processing flue gas carbon reduction and emission reduction device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical scheme adopted by the application to solve the technical problem is that the plastic processing flue gas carbon reduction and emission reduction device comprises a pulse dust collector composed of a shell, an air inlet pipe, a side box, an air outlet pipe and a filter cartridge; the side box is fixedly connected to one side of the shell, the air outlet pipe is connected to the top of the side box, and the air inlet pipe is connected to the top of the shell; the filter cartridge is installed in the inside of the shell, and an auxiliary module is arranged in the inside of the filter cartridge; the auxiliary module comprises a middle shaft and a shuttle-shaped guide cover; the middle shaft is fixedly connected to the middle part of the filter cartridge and is coaxially arranged with the filter cartridge; the shuttle-shaped guide cover is slidably connected to the middle shaft; a first spring is sleeved on the middle shaft, and the two ends of the first spring are connected between the shuttle-shaped guide cover and the end part of the filter cartridge.

[0008] When the pressure difference between the inside and outside of the filter cartridge reaches a critical value, the pulse back blowing is started, the compressed air is jetted into the inside of the filter cartridge, the compressed air contacts the shuttle-shaped guide cover, is passively changed in direction and is jetted on the inner wall of the filter cartridge, and under the extrusion of the compressed air, the shuttle-shaped guide cover compresses the first spring and slides on the middle shaft to change the position, so that the compressed air is jetted to clean the dust in each area of the inner wall of the filter cartridge.

[0009] Preferably, the shell interior is divided into a first cavity, a second cavity and a third cavity by a baffle plate, and the shell interior is also fixedly connected with support side plates, and the baffle plate is fixedly connected between the two support side plates; the filter cartridge is clamped in the support side plates;

[0010] The electromagnetic valve is arranged on the air inlet pipe to control the air inlet direction;

[0011] Based on the baffle plate, the shell interior is divided into a first cavity, a second cavity and a third cavity, and when the pressure difference between the inside and outside of the filter cartridge in any cavity reaches a critical value, the air inlet direction is switched based on the electromagnetic valve.

[0012] Preferably, one end of the filter cartridge is fixedly connected with a venturi, and the other end is fixedly connected with a filter cartridge end plate; a pulse back flushing module is arranged in the side tank corresponding to the venturi, and based on the pulse back flushing module, when the pressure difference between the inside and outside of the filter cartridge reaches a critical value, the pulse back flushing module outputs compressed air which is sent into the filter cartridge interior through the venturi;

[0013] A blocking ring is fixedly connected to the filter cartridge at a position adjacent to the venturi, and the filter cartridge abuts against the support side plate through the blocking ring.

[0014] Preferably, the auxiliary module further comprises a ring plate, a butt joint plate, a connecting plate and a driving plate; the ring plate and the butt joint plate are fixedly connected through the connecting plate; the ring plate is fixedly connected at one end of the filter cartridge and is arranged adjacent to the venturi; the butt joint plate is arranged in the filter cartridge at a position close to the filter cartridge end plate; and the driving plate is in sliding fit with the butt joint plate.

[0015] Preferably, one end of the middle shaft is fixedly connected with a fixing plate, and the fixing plate is fixedly connected to the ring plate through bolts; the other end of the middle shaft penetrates the center of the butt joint plate and the driving plate, and the other end of the middle shaft is threadedly connected with a nut.

[0016] Preferably, the butt joint plate is rotatably connected with movable claws, a plurality of movable claws are arranged in a circumferential array; the bottom outer edge of the movable claw is provided with teeth, the inner side of the driving plate is fixedly connected with a gear, and the gear is in meshing fit with the teeth; the middle part of the butt joint plate is correspondingly provided with an embedded part, and the butt joint plate is in sliding fit with the driving plate based on the embedded part.

[0017] Preferably, the other end of the filter cartridge is provided with a fixed groove corresponding to the movable claw; when the auxiliary module is inserted into the filter cartridge interior, based on the rotation of the driving plate, the plurality of movable claws are deflected until the movable claws abut against the fixed groove, and the nut abuts against the butt joint plate and the driving plate.

[0018] Preferably, a through hole is formed on the connecting plate, and a telescopic rod is slidably connected in the through hole, both ends of the telescopic rod are provided with a ball, and a second spring is sleeved on the side of the telescopic rod facing the central shaft, and the second spring is used for resetting the telescopic rod; when the shuttle-shaped guide cover slides on the central shaft, the telescopic rod is pressed and the second spring is compressed, so that the ball on the telescopic rod can hit the inner wall of the filter cartridge to accelerate the separation of the caked dust from the filter cartridge.

[0019] Preferably, the bottom of the shell is further fixedly connected with an ash collecting bin, and a partition plate is fixedly connected in the ash collecting bin, and the top of the partition plate is in contact with the bottom of the baffle, so that the dust is guided to gather at the bottom of the ash collecting bin from different positions based on the partition plate when the dust settles in the ash collecting bin under the action of gravity.

[0020] Preferably, the top of the shell is fixedly connected with an air inlet cover plate, the top of the side tank is fixedly connected with an air outlet cover plate, the air outlet pipe penetrates through the air outlet cover plate, and the air inlet pipe penetrates through the air inlet cover plate.

[0021] The bottom of the shell is provided with a support frame, and the shell is supported to be separated from the ground through the support frame.

[0022] The beneficial effects of the present application are as follows:

[0023] 1. The plastic processing flue gas carbon reduction and emission reduction device can push the shuttle-shaped guide cover to slide on the central shaft by compressed gas entering the filter cartridge, and because the side surface of the shuttle-shaped guide cover is arc-shaped, when the compressed gas contacts the shuttle-shaped guide cover, the compressed gas is passively redirected in addition to the axial pressure applied to the shuttle-shaped guide cover, so that the path of the compressed gas changes from axial penetration into the filter cartridge to perpendicular to the axial direction of the filter cartridge, so that the compressed gas is directly sprayed on the inner wall of the filter cartridge, and as a plurality of compressed gases are injected, the shuttle-shaped guide cover can be continuously pressed and slide on the central shaft, so that the compressed gas is passively redirected and sprayed on multiple areas of the inner wall of the filter cartridge, achieving uniform spraying and cleaning of the inner wall of the filter cartridge.

[0024] 2. The plastic processing flue gas carbon reduction and emission reduction device can slide under the action of compressed gas based on the shuttle-shaped guide cover, and utilize the shuttle-shaped guide cover to press the telescopic rod arranged on the connecting plate, so that when the shuttle-shaped guide cover slides, the telescopic rod is pressed and slides outward, thereby knocking the inner wall of the filter cartridge, and as the shuttle-shaped guide cover slides on the central shaft, multiple telescopic rods on the connecting plate alternately knock the side wall of the filter cartridge, and reset under the action of the second spring after knocking, so that secondary knocking can be performed when the shuttle-shaped guide cover resets, thereby accelerating the separation of caked dust from the filter cartridge. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is a perspective view of the present application;

[0027] Figure 2 is the front view of the present application;

[0028] Figure 3 is the top view of the present application;

[0029] Figure 4 is Figure 3 is the sectional view of A-A in the present application;

[0030] Figure 5 is the perspective view of the filter cartridge in the present application;

[0031] Figure 6 is the side view of the auxiliary module in the present application;

[0032] Figure 7 is Figure 6 is the enlarged view of a in the present application;

[0033] Figure 8 is the first perspective view of the auxiliary module in the present application;

[0034] Figure 9 is the second perspective view of the auxiliary module in the present application;

[0035] Figure 10 is the perspective view of the ash collection bin in the present application;

[0036] In the figure: 1, the shell; 11, the air inlet pipe; 12, the first cavity; 13, the second cavity; 14, the third cavity; 15, the air inlet cover plate; 16, the support side plate; 2, the support frame; 3, the side box; 31, the air outlet pipe; 32, the air outlet cover plate; 4, the filter cartridge; 41, the filter cartridge end plate; 42, the blocking ring; 43, the venturi; 5, the auxiliary module; 51, the ring plate; 52, the connecting plate; 521, the telescopic rod; 53, the central shaft; 531, the fixed plate; 54, the shuttle-shaped guide cover; 55, the first spring; 56, the butt joint plate; 561, the embedded part; 57, the movable claw; 58, the driving plate; 581, the gear; 59, the nut; 6, the ash collection bin; 61, the partition plate. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0038] As Figures 1 to 10As shown, the plastic processing flue gas decarburization and emission reduction device provided by the embodiment of the application comprises a pulse dust collector composed of a shell 1, an air inlet pipe 11, a side tank 3, an air outlet pipe 31 and a filter cartridge 4; the side tank 3 is fixed to one side of the shell 1, the air outlet pipe 31 is connected to the top of the side tank 3, and the air inlet pipe 11 is connected to the top of the shell 1; the filter cartridge 4 is installed inside the shell 1, and an auxiliary module 5 is arranged inside the filter cartridge 4; the auxiliary module 5 comprises a middle shaft 53 and a shuttle-shaped guide cover 54; the middle shaft 53 is fixed to the middle part of the filter cartridge 4 and is coaxially arranged with the filter cartridge 4; the shuttle-shaped guide cover 54 is slidingly connected to the middle shaft 53, and a first spring 55 is sleeved on the middle shaft 53, with two ends of the first spring 55 connected between the shuttle-shaped guide cover 54 and the end part of the filter cartridge 4, respectively.

[0039] When the pressure difference between the inside and outside of the filter cartridge 4 reaches a critical value, the pulse back flushing is started, the compressed air is injected into the inside of the filter cartridge 4, the compressed air contacts the shuttle-shaped guide cover 54, is passively changed in direction and is sprayed on the inner wall of the filter cartridge 4, and the shuttle-shaped guide cover 54 is compressed to slide on the middle shaft 53 to change the position under the extrusion of the compressed air, so as to guide the compressed air to spray and clean the dust in each area of the inner wall of the filter cartridge 4.

[0040] The plastic product processing is often accompanied by the generation of flue gas, and the pulse filter cartridge 4 dust collector is preferred for the treatment of the flue gas in the industry. In the prior art, the pulse filter cartridge 4 dust collector mainly uses the filter cartridge 4 to remove the dust and other harmful impurities in the flue gas when treating the flue gas. After the flue gas enters the treatment tank, it passes through the microfiltration membrane on the filter surface into the inside of the filter cartridge 4 and is discharged through one end of the filter cartridge 4. After a long time of use, part of the dust will block the microfiltration membrane, causing the pressure difference between the inside and outside of the microfiltration membrane to increase. At this time, based on the sensor detection, the pulse back flushing system can be automatically started to clean the filter cartridge 4. However, when the pulse back flushing system is started to clean, the compressed gas is in the form of jet, and the diffusion needs time, so the degree of action of the compressed gas on the end of the filter cartridge 4 close to the pulse back flushing system and the end far away from the pulse back flushing system is completely different. It can be predicted that the diffusion of the compressed gas after jetting needs a certain time, and the flow also needs a certain time, so the cleaning effect on the front and middle parts of the filter cartridge 4 should be better than that on the tail part of the filter cartridge 4. The tail part of the filter cartridge 4 corresponds to the end adjacent to the pulse back flushing system.

[0041] In the embodiment, when the flue gas is introduced into the shell 1 through the gas inlet pipe 11, the flue gas diffuses in the shell 1 and passes through the surface of the filter cartridge 4 at a certain rate. The gas passing through the surface of the filter cartridge 4 can be understood as clean gas, and the gas in the shell 1 is flue gas. The gas passing through the surface of the filter cartridge 4 is between the lateral side of the shell 1 and the shell 1, and is discharged through the gas outlet pipe 31. It can be understood that the above problem mainly occurs when the microfiltration membrane on the surface of the filter cartridge 4 works for a long time, and the pressure difference between the inside and outside of the filter cartridge 4 reaches a critical value (the critical value is empirically set, and the specific value of the critical value is not specified in the embodiment). At this time, the pulse back-flushing system (which is prior art and not shown in the figure) is automatically started based on the electrical signal. The pulse back-flushing system can spray a segment of compressed gas after being started. The compressed gas enters the inside of the filter cartridge 4 and diffuses in the inside of the filter cartridge 4, and performs back-flushing cleaning on the dust attached to the surface of the filter cartridge 4, so that the filter cartridge 4 can repeatedly participate in the treatment of flue gas. It is worth noting that in theory, the flue gas treatment process needs to be paused when the pulse back-flushing system is started, in order to prevent air flow turbulence. Based on the above problem, in the embodiment, when the compressed gas enters the inside of the filter cartridge 4, it can push the shuttle-shaped guide cover 54 to slide quickly on the central shaft 53. Since the side surface of the shuttle-shaped guide cover 54 is arc-shaped, when the compressed gas contacts the shuttle-shaped guide cover 54, in addition to applying axial pressure to the shuttle-shaped guide cover 54, the compressed gas is also passively redirected, so that the path of the compressed gas changes from axial penetration into the filter cartridge 4 to a path perpendicular to the axial direction of the filter cartridge 4. Thus, the compressed gas is directly sprayed on the inner wall of the filter cartridge 4. With the injection of multiple segments of compressed gas, the shuttle-shaped guide cover 54 can be continuously squeezed and slide on the central shaft 53, so that the compressed gas can be passively redirected and sprayed on multiple areas of the inner wall of the filter cartridge 4, achieving uniform spraying and cleaning of the inner wall of the filter cartridge 4, thereby achieving the function of forced uniform spraying of compressed gas on the inner wall of the filter cartridge 4, avoiding the situation that the compressed gas is directly injected to cause uneven cleaning of the inside of the filter cartridge 4. When the shuttle-shaped guide cover 54 is pushed to slide on the central shaft 53, it will squeeze the first spring 55, so that the first spring 55 is compressed to generate elastic potential energy. When the injection of compressed gas stops, the first spring 55 releases the elastic potential energy and uses the elastic force to squeeze the shuttle-shaped guide cover 54 to reset.

[0042] As shown in Figures 1 to 2 The inside of the shell 1 is divided into a first cavity 12, a second cavity 13 and a third cavity 14 by a baffle. The inside of the shell 1 is also fixedly connected with support side plates 16, and the baffle is fixed between the two support side plates 16. The filter cartridge 4 is clamped in the support side plate 16.

[0043] The electromagnetic valve is arranged on the gas inlet pipe 11, which is used to control the gas flow direction.

[0044] The first cavity 12, the second cavity 13 and the third cavity 14 are separated in the shell 1 based on the baffle. When the pressure difference between the inside and outside of the filter cartridge 4 in any cavity reaches a critical value, the intake flow direction is switched based on the electromagnetic valve.

[0045] Based on the above, when the filter cartridge 4 is cleaned by the pulse back-flushing system, the process of flue gas treatment needs to be temporarily suspended in theory, that is, when the filter cartridge 4 is cleaned by back-flushing, the flue gas needs to be temporarily suspended into the shell 1, otherwise it will cause airflow turbulence. However, cleaning during shutdown will cause the flue gas treatment to be not timely, which will cause safety hazards. Therefore, in the embodiment, based on the first cavity 12, the second cavity 13 and the third cavity 14 inside the shell 1, the function of non-stop back-flushing cleaning can be realized. Specifically, when the flue gas enters the shell 1, the electromagnetic valve can change the intake flow direction, that is, when the flue gas enters the shell 1, the electromagnetic valve can selectively guide the flue gas into the first cavity 12, the second cavity 13 and the third cavity 14 or a combination of multiple cavities. When the pressure difference sensor detects that the pressure difference between the inside and outside of any filter cartridge 4 reaches a critical value, a feedback signal can be fed back to the electromagnetic valve. The electromagnetic valve changes the intake flow direction, closes the cavity corresponding to the filter cartridge 4 that needs to be cleaned by back-flushing, so that the flue gas enters other cavities. At this time, back-flushing cleaning is performed, and the filter cartridge 4 in the closed cavity is cleaned, which does not interfere with the normal treatment of the flue gas in other cavities, thereby achieving the purpose of non-stop cleaning.

[0046] As shown in Figures 1 to 2 The filter cartridge 4 has a Venturi tube 43 fixed at one end and a filter cartridge 4 end plate fixed at the other end. The side tank 3 has a pulse back-flushing module corresponding to the Venturi tube 43. Based on the pulse back-flushing module, when the pressure difference between the inside and outside of the filter cartridge 4 reaches a critical value, the pulse back-flushing module outputs compressed air, which is sent into the inside of the filter cartridge 4 through the Venturi tube 43.

[0047] The filter cartridge 4 has a blocking ring 42 fixed at a position adjacent to the Venturi tube 43. The filter cartridge 4 abuts against the support side plate 16 through the blocking ring 42.

[0048] In the embodiment, in order to enhance the effect of back-flushing compressed gas, the Venturi tube 43 is arranged at one end of the filter cartridge 4. After passing through the Venturi tube 43, the compressed gas can enhance the energy. Specifically,

[0049] The Venturi tube 43 is a tapered pipe, when the high pressure pulse airflow passes through the throat, a strong negative pressure area is generated according to the Venturi effect, which generates two key airflows: the primary airflow from the compressed air of the pulse valve, and the induced secondary airflow from the air sucked from the clean gas chamber of the dust collector; when the two airflows are combined, a airflow with much larger volume, stronger energy and more concentrated direction is formed, which blows vertically and uniformly to the entire inside of the filter cartridge 4, and cooperates with the shuttle-shaped guide cover 54 to make the strong downward airflow not only effectively shake off the dust, but more importantly, provide the dust with clear kinetic energy and path towards the ash bucket, greatly promote the settlement of the dust, and effectively overcome the problem of secondary adsorption of dust.

[0050] As shown in Figures 1 to 2 , Figures 5 to 9 , the auxiliary module 5 further comprises a ring plate 51, a butt joint plate 56, a connecting plate 52 and a driving plate 58; the ring plate 51 and the butt joint plate 56 are fixedly connected through the connecting plate 52; the ring plate 51 is fixedly connected to one end of the filter cartridge 4 and is arranged adjacent to the Venturi tube 43; the butt joint plate 56 is arranged in the filter cartridge 4 close to the end plate of the filter cartridge 4, and the driving plate 58 is in sliding fit with the butt joint plate 56.

[0051] The central shaft 53 is installed inside the filter cartridge 4, and a support unit is needed to fix the central shaft 53 and the shuttle-shaped guide cover 54 to prevent the shuttle-shaped guide cover 54 from deviating during displacement and causing structural jamming, in the embodiment, the support unit is composed of the ring plate 51, the butt joint plate 56, the connecting plate 52 and the driving plate 58, wherein the ring plate 51 and the butt joint plate 56 are respectively at two ends of the filter cartridge 4, and the ring plate 51 and the butt joint plate 56 are fixedly connected through the connecting plate 52, the connecting plate 52 is recessed inside the filter cartridge 4 and still has a certain gap with the inner wall of the filter cartridge 4, the ring plate 51 is fixedly connected to one end of the filter cartridge 4, and the central shaft 53 is fixedly connected to the other end of the filter cartridge 4 based on the butt joint plate 56 and the driving plate 58; based on the above, the central shaft 53 and the shuttle-shaped guide cover 54 can be stably installed inside the filter cartridge 4.

[0052] As shown in Figures 1 to 2 , Figures 5 to 9 , one end of the central shaft 53 is fixedly connected with a fixed plate 531, and the fixed plate 531 is fixedly connected to the ring plate 51 through bolts; the other end of the central shaft 53 penetrates the centers of the butt joint plate 56 and the driving plate 58, and the other end of the central shaft 53 is threadedly connected with a nut 59.

[0053] As shown in Figures 1 to 2 , Figures 5 to 9As shown, the docking plate 56 is rotationally linked with movable claws 57, the movable claws 57 are provided in plurality and arranged in a circumferential array; the bottom outer edge of the movable claw 57 is provided with a tooth, the inner side of the driving plate 58 is fixedly connected with a gear 581, and the gear 581 is engaged with the tooth; the middle part of the docking plate 56 is correspondingly provided with an embedded part 561, and the docking plate 56 is slidingly matched with the driving plate 58 based on the embedded part 561.

[0054] As shown in Figures 1 to 2 , Figures 5 to 9 , the other end of the filter cartridge 4 is provided with a fixed groove corresponding to the movable claw 57; when the auxiliary module 5 is inserted into the filter cartridge 4, the driving plate 58 is rotated to drive the plurality of movable claws 57 to deflect until the movable claw 57 abuts in the fixed groove, and the nut 59 is used to abut the docking plate 56 and the driving plate 58.

[0055] Based on the above, the ring plate 51 is bolted to one end of the filter cartridge 4, and the other end is fixed to the filter cartridge 4 based on the docking plate 56, the driving plate 58 and the movable claw 57 arranged therein. In theory, the docking plate 56 can be directly bolted to the other end of the filter cartridge 4, that is, the docking plate 56 and the guard plate are symmetrical and equal in size, but it may not be removed, resulting in the auxiliary module 5 becoming a disposable structure. In the embodiment, the auxiliary module 5 can be directly inserted from one end of the filter cartridge 4, and specifically, one end of the ring plate 51 of the auxiliary module 5 needs to abut against the edge of the end of the filter cartridge 4. Therefore, the docking plate 56 and the driving plate 58 are inserted into the filter cartridge 4, and after being completely inserted, the ring plate 51 can be optionally bolted to the end of the filter cartridge 4. It can also be bolted without a ring. As for the docking plate 56 and the driving plate 58 at the other end of the auxiliary module 5, after the ring plate 51 is in place, the driving plate 58 can be rotated to drive the gear 581 inside the driving plate 58 to rotate the movable claw 57. When the plurality of movable claws 57 rotate synchronously, they can abut inside the fixed groove, so that based on the movable claw 57, the other end of the auxiliary module 5 abuts against the inside of the filter cartridge 4. At this time, rotate the nut 59 to make the nut 59 press the driving plate 58 and the docking plate 56, thereby fixing the driving plate 58, the docking plate 56 and the movable claw 57, completing the installation of the auxiliary module 5 and the filter cartridge 4.

[0056] As shown in Figures 1 to 2 , Figures 5 to 9 , the connecting plate 52 is provided with a through hole, and the through hole is slidingly connected with a telescopic rod 521, both ends of the telescopic rod 521 are provided with a ball, and the telescopic rod 521 is sleeved with a second spring on the side facing the central shaft 53, and the second spring is used for resetting the telescopic rod 521; when the shuttle-shaped guide cover 54 slides on the central shaft 53, the telescopic rod 521 is compressed, the second spring is compressed, the ball on the telescopic rod 521 can hit the inner wall of the filter cartridge 4, and the speed of the caked dust separating from the filter cartridge 4 is accelerated.

[0057] Based on the above, since the pulse back blowing system will inject compressed gas into the filter cartridge 4 after self-starting, the flow direction of the compressed gas can be changed based on the sliding of the shuttle-shaped guide cover 54 on the middle shaft 53, and the shuttle-shaped guide cover 54 is actively extruded by the compressed gas. It can be understood that the back blowing mainly acts on the dust attached to the filter cartridge 4, but for the dust that is clumped and adhered, only back blowing may not easily solve the problem. Therefore, in the embodiment, in combination with the sliding of the shuttle-shaped guide cover 54 under the action of the compressed gas, the shuttle-shaped guide cover 54 is used to extrude the telescopic rod 521 provided on the connecting plate 52. When the shuttle-shaped guide cover 54 slides, it will extrude the telescopic rod 521, so that the telescopic rod 521 slides outward, thereby knocking the inner wall of the filter cartridge 4. With the sliding of the shuttle-shaped guide cover 54 on the middle shaft 53, the multiple telescopic rods 521 on the connecting plate 52 alternately knock the side wall of the filter cartridge 4, and after knocking, they are reset under the action of the second spring. When the shuttle-shaped guide cover 54 is reset, it can also be knocked twice, thereby accelerating the clumped dust to separate from the filter cartridge 4.

[0058] As shown in Figures 1 to 3 The bottom of the shell 1 is also fixedly connected with a dust collecting bin 6, the dust collecting bin 6 is fixedly connected with a partition plate 61, and the top of the partition plate 61 is in contact with the bottom of the baffle. When the dust settles in the dust collecting bin 6 under the action of gravity, the dust is guided to collect at the bottom of the dust collecting bin 6 from different positions based on the partition plate 61.

[0059] The dust collecting bin 6 is used to collect the settled dust, but during back blowing, the dust in the dust collecting bin 6 may be lifted due to the back blowing airflow. Therefore, in the embodiment, the partition plate 61 is arranged inside the dust collecting bin 6, which guides the dust to collect at the bottom of the dust collecting bin 6 from different positions under the action of gravity. The different positions here correspond to the bottoms of the first chamber, the second chamber and the third chamber. During back blowing, the accumulated dust is difficult to be lifted and re-enter the first chamber, the second chamber or the third chamber due to the presence of the partition plate 61.

[0060] As shown in Figures 1 to 3 The top of the shell 1 is fixedly connected with an air inlet cover plate 15, the top of the side tank 3 is fixedly connected with an air outlet cover plate 32, the air outlet pipe 31 penetrates the air outlet cover plate 32, and the air inlet pipe 11 penetrates the air inlet cover plate 15.

[0061] The bottom of the shell 1 is provided with a support frame 2, and the shell 1 is supported by the support frame 2 to be separated from the ground.

[0062] Working principle: when the flue gas is introduced into the shell 1 through the inlet pipe 11, the flue gas diffuses in the shell 1 and passes through the surface of the filter cartridge 4 at a certain rate. The gas passing through the surface of the filter cartridge 4 can be understood as clean gas, and the gas in the shell 1 is flue gas. The gas passing through the surface of the filter cartridge 4 is between the shell 1 and the side, and is discharged through the outlet pipe 31. It can be understood that the above problem mainly occurs after the microfiltration membrane on the surface of the filter cartridge 4 works for a long time. At this time, when the pressure difference between the inside and outside of the filter cartridge 4 reaches a critical value (the critical value here is empirically set, and the specific value of the critical value is not clear in this embodiment), the pulse backflush system (which is prior art and not shown in the figure) is started based on the electrical signal. The pulse backflush system can spray a segment of compressed gas after starting. This compressed gas will enter the inside of the filter cartridge 4 and diffuse in the inside of the filter cartridge 4, backflushing and cleaning the dust attached to the surface of the filter cartridge 4, so that the filter cartridge 4 can repeatedly participate in the treatment of flue gas. It is worth noting that when the pulse backflush system is started, the flue gas treatment process needs to be temporarily suspended in theory to prevent air flow turbulence. Based on the above problem, in this embodiment, when the compressed gas enters the inside of the filter cartridge 4, it can push the shuttle-shaped guide cover 54 to slide quickly on the central shaft 53. And because the side surface of the shuttle-shaped guide cover 54 is arc-shaped, when the compressed gas contacts the shuttle-shaped guide cover 54, it will be passively redirected, so that the path of the compressed gas changes from axial penetration into the filter cartridge 4 to perpendicular to the axial direction of the filter cartridge 4. Thus, the compressed gas is directly sprayed on the inner wall of the filter cartridge 4. With the injection of multiple segments of compressed gas, the shuttle-shaped guide cover 54 can be continuously squeezed and slide on the central shaft 53, so that the compressed gas can be passively redirected and sprayed on the inner wall of the filter cartridge 4 in multiple areas, achieving uniform spraying and cleaning of the inner wall of the filter cartridge 4, thereby achieving the function of forced uniform spraying of compressed gas on the inner wall of the filter cartridge 4, avoiding the situation that the compressed gas is directly injected to cause uneven cleaning of the inside of the filter cartridge 4. Wherein, when the shuttle-shaped guide cover 54 is pushed to slide on the central shaft 53, it will squeeze the first spring 55, so that the first spring 55 is compressed to generate elastic potential energy. When the compressed gas stops injecting, the first spring 55 will release the elastic potential energy and use the elastic force to squeeze the shuttle-shaped guide cover 54 to reset;

[0063] Based on the arrangement of the first cavity 12, the second cavity 13 and the third cavity 14 inside the shell 1, the function of blowback cleaning without stopping can be realized. Specifically, when the flue gas enters the shell 1, the electromagnetic valve can change the flow direction of the inlet gas, that is, the flue gas can be selectively introduced into the first cavity 12, the second cavity 13 and the third cavity 14 or a combination of multiple cavities by the electromagnetic valve. When the pressure difference sensor detects that the pressure difference inside and outside any filter cartridge 4 reaches a critical value, a feedback signal can be fed back to the electromagnetic valve to change the flow direction of the inlet gas, close the chamber corresponding to the filter cartridge 4 that needs to perform blowback cleaning, and make the flue gas enter other chambers. At this time, blowback cleaning is performed, and the filter cartridge 4 in the closed chamber is cleaned without interfering with the normal treatment of the flue gas in other chambers, thereby achieving the purpose of cleaning without stopping. The auxiliary module 5 can be directly inserted into one end of the filter cartridge 4. Specifically, one end of the ring plate 51 of the auxiliary module 5 needs to abut against the end edge of the filter cartridge 4. Therefore, the butt joint plate 56 and the driving plate 58 are inserted into the filter cartridge 4, and after complete insertion, the ring plate 51 can be selectively fixed to the end of the filter cartridge 4 by bolts, or can be fixed without bolts. For the butt joint plate 56 and the driving plate 58 at the other end of the auxiliary module 5, after the ring plate 51 is in place, the driving plate 58 can be rotated to drive the gear 581 inside the driving plate 58 to rotate the movable claws 57. When multiple movable claws 57 are synchronously rotated, they can abut against the inside of the fixed groove, so that based on the movable claws 57, the other end of the auxiliary module 5 abuts against the inside of the filter cartridge 4. At this time, the nut 59 is rotated again to press the driving plate 58 and the butt joint plate 56, thereby fixing the driving plate 58, the butt joint plate 56 and the movable claws 57, and completing the installation of the auxiliary module 5 and the filter cartridge 4.

[0064] The blowback mainly acts on the dust attached to the filter cartridge 4, but for the dust that is clumped and bonded, only blowback may not easily solve the problem. Therefore, in the present embodiment, in combination with the sliding of the shuttle-shaped guide cover 54 under the action of compressed gas, the shuttle-shaped guide cover 54 is used to press the telescopic rods 521 arranged on the connecting plate 52. When the shuttle-shaped guide cover 54 slides, it will press the telescopic rods 521 to make them slide outward, thereby knocking the inner wall of the filter cartridge 4. With the sliding of the shuttle-shaped guide cover 54 on the central shaft 53, multiple telescopic rods 521 on the connecting plate 52 alternately knock the side wall of the filter cartridge 4. After knocking, the second spring is used to reset. When the shuttle-shaped guide cover 54 is reset, it can also be knocked twice, thereby accelerating the clumped dust to separate from the filter cartridge 4.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for reducing carbon emissions from plastic processing fumes, characterized in that: The device includes a pulse dust collector consisting of a housing (1), an inlet pipe (11), a side box (3), an outlet pipe (31), and a filter cartridge (4); the side box (3) is fixed to one side of the housing (1), the outlet pipe (31) is connected to the top of the side box (3), and the inlet pipe (11) is connected to the top of the housing (1); the filter cartridge (4) is installed inside the housing (1), and an auxiliary module (5) is provided inside the filter cartridge (4). The auxiliary module (5) includes a central shaft (53) and a shuttle-shaped guide cover (54). The central shaft (53) is fixed to the middle of the filter cartridge (4) and is arranged coaxially with the filter cartridge (4). The shuttle-shaped guide cover (54) is slidably connected to the central shaft (53), and a first spring (55) is sleeved on the central shaft (53). The two ends of the first spring (55) are respectively connected between the shuttle-shaped guide cover (54) and the end of the filter cartridge (4). When the pressure difference between the inside and outside of the filter cartridge (4) reaches the critical value, the pulse backflushing is started, and compressed air is injected into the inside of the filter cartridge (4). The compressed air contacts the shuttle-shaped guide cover (54), passively changes direction and is injected onto the inner wall of the filter cartridge (4). Under the squeezing action of the compressed air, the shuttle-shaped guide cover (54) compresses the first spring (55) and slides on the central shaft (53) to change position, guiding the compressed air to spray and clean the dust in each area of ​​the inner wall of the filter cartridge (4). The housing (1) is divided into a first cavity (12), a second cavity (13) and a third cavity (14) by a baffle. A supporting side plate (16) is also fixed inside the housing (1). The baffle is fixed between the two supporting side plates (16). The filter cartridge (4) is snapped into the supporting side plate (16). The intake pipe (11) is equipped with a solenoid valve to control the direction of intake airflow; Based on the baffle, the interior of the shell (1) is divided into a first cavity (12), a second cavity (13) and a third cavity (14). When the pressure difference between the inside and outside of the filter cartridge (4) in any cavity reaches a critical value, the airflow direction is switched based on the solenoid valve. One end of the filter cartridge (4) is fixedly connected to a venturi tube (43), and the other end is fixedly connected to a filter cartridge (4) end plate; a pulse backflush module is provided in the side box (3) corresponding to the venturi tube (43). Based on the pulse backflush module, when the pressure difference between the inside and outside of the filter cartridge (4) reaches a critical value, the pulse backflush module outputs compressed air, which is sent into the inside of the filter cartridge (4) through the venturi tube (43); A blocking ring (42) is fixed to the filter cartridge (4) at a position adjacent to the venturi tube (43), and the filter cartridge (4) abuts against the support side plate (16) via the blocking ring (42); The auxiliary module (5) further includes a ring plate (51), a docking plate (56), a connecting plate (52), and a drive plate (58); the ring plate (51) and the docking plate (56) are fixedly connected by the connecting plate (52); the ring plate (51) is fixedly connected to one end of the filter cartridge (4) and is arranged adjacent to the venturi tube (43); the docking plate (56) is located inside the filter cartridge (4) near the end plate of the filter cartridge (4), and the drive plate (58) is slidably engaged with the docking plate (56); One end of the central shaft (53) is fixedly connected to a fixing plate (531), and the fixing plate (531) is fixedly connected to the ring plate (51) by bolts; the other end of the central shaft (53) passes through the center of the docking plate (56) and the drive plate (58), and the other end of the central shaft (53) is threadedly connected to a nut (59). The docking plate (56) is rotatably connected to a movable claw (57), and multiple movable claws (57) are provided and arranged in a circumferential array. The bottom outer edge of the movable claw (57) is provided with teeth, and a gear (581) is fixedly connected to the inner side of the drive plate (58), and the gear (581) meshes with the teeth. The middle part of the docking plate (56) is correspondingly provided with an embedded part (561), and the docking plate (56) slides with the drive plate (58) based on the embedded part (561). The other end of the filter cartridge (4) has a fixed groove corresponding to the movable claw (57); when the auxiliary module (5) is inserted into the filter cartridge (4), the multiple movable claws (57) are driven to deflect based on the rotation of the drive plate (58) until the movable claws (57) are pressed against the fixed groove, and the nut (59) is used to press the docking plate (56) against the drive plate (58). The connecting plate (52) has a through hole, and a telescopic rod (521) is slidably connected in the through hole. Both ends of the telescopic rod (521) are provided with balls, and a second spring is sleeved on the side of the telescopic rod (521) facing the central axis (53). The second spring is used to reset the telescopic rod (521). When the shuttle-shaped guide cover (54) slides on the central axis (53), it squeezes the telescopic rod (521) and compresses the second spring, so that the balls on the telescopic rod (521) can hit the inner wall of the filter cartridge (4) and accelerate the removal of agglomerated dust from the filter cartridge (4).

2. The device for reducing carbon emissions from plastic processing fumes according to claim 1, characterized in that: The bottom of the shell (1) is also fixedly connected to a dust collection bin (6), and a partition (61) is fixedly connected inside the dust collection bin (6). The top of the partition (61) is in contact with the bottom of the baffle. When dust settles into the dust collection bin (6) under the action of gravity, the partition (61) guides the dust to collect at the bottom of the dust collection bin (6) from different positions.

3. The device for reducing carbon emissions from plastic processing flue gas according to claim 2, characterized in that: An air inlet cover (15) is fixedly connected to the top of the housing (1), an air outlet cover (32) is fixedly connected to the top of the side box (3), an air outlet pipe (31) passes through the air outlet cover (32), and an air inlet pipe (11) passes through the air inlet cover (15). The bottom of the housing (1) is provided with a support frame (2), and the housing (1) is lifted off the ground by the support frame (2).

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