A high temperature and corrosion resistant gas bag filter

Abstract

The present invention discloses a high-temperature and corrosion-resistant gas bag filter, the bag filter comprising a box body, a dust cleaning system, a dust discharging device, a dust collecting device and an adjusting device, wherein air inlet pipes and air outlet pipes are respectively arranged on both sides of the box body, and an ash hopper is arranged at the bottom of the box body, the discharge port of the ash hopper is connected with the ash discharging device, the dust collecting device is tightly connected with the box body, the dust collecting device is located inside the box body, and the adjusting device is tightly connected with the dust collecting device, and the adjusting device is used for adjusting the back-blowing airflow; the dust-laden gas enters the box body through the air inlet pipe and is adsorbed by the dust collecting device, and the clean gas flows out from the air outlet pipe, and dust is accumulated on the dust collecting device, affecting the fluidity of the gas, and the dust accumulated on the dust collecting device is removed by starting the dust cleaning system on time to maintain the fluidity inside the filter, and the dust washed down by the back-blowing airflow falls into the ash hopper, and the ash hopper is in an inverted cone shape. The dust falling into the ash hopper will slide into the ash discharging device under the influence of its own gravity and be discharged from the filter.

Description

Technical Field

[0001] The invention relates to the technical field of gas filtration, in particular to a high temperature resistant and corrosion resistant gas bag filter. Background Art

[0002] Bag filter is a dust removal device, which is suitable for capturing fine, dry non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and uses the filtering effect of fiber fabric to filter dust-containing gas. When the dust-containing gas enters the bag filter, the large particles and heavy dust settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter bag, the dust is retained, so that the gas is purified.

[0003] The dust that enters the filter will accumulate on the surface of the dust bag and continue to grow over time, causing the air permeability of the bag to continue to decrease. In order for the dust collector to continue to work, it is often necessary to regularly clean the dust on the bag. Cleaning is generally done by program-controlled timing to start the electromagnetic pulse valve, so that the compressed air in the air bag is ejected from the blowpipe into the bag, causing the bag to instantly gather and expand, thereby shaking off the dust accumulated on the bag.

[0004] However, when cleaning the existing filters, the same airflow is generally used to back-blow the bags, and the airflow size cannot be automatically controlled according to the amount of dust accumulated on the bags, so the cleaning effect cannot be guaranteed. Summary of the invention

[0005] The object of the present invention is to provide a high temperature resistant and corrosion resistant gas bag filter to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the bag filter includes a box body, a ash cleaning system, an ash discharge device, a dust collecting device and an adjusting device, an air inlet pipe and an air outlet pipe are respectively provided on both sides of the box body, an ash hopper is provided at the bottom of the box body, the discharge port of the ash hopper is connected with the ash discharge device, the dust collecting device is tightly connected with the box body, the dust collecting device is located inside the box body, the adjusting device is tightly connected with the dust collecting device, and the adjusting device is used to adjust the backblowing airflow.

[0007] The box provides an installation basis for each device. The dust-containing gas enters the box through the air inlet pipe and is adsorbed by the dust collecting device. The clean gas flows out from the air outlet pipe. Dust will accumulate on the dust collecting device, affecting the fluidity of the gas. The dust accumulated on the dust collecting device is removed by starting the cleaning system on time to maintain the fluidity inside the filter. When the cleaning system is started, the air inlet pipe is closed to prevent the two airflows from affecting each other. The dust washed down by the backwash airflow falls into the ash hopper. The ash hopper is in an inverted cone shape. The dust falling into the ash hopper will slide into the ash discharge device under the influence of its own gravity and be discharged from the filter.

[0008] Furthermore, the cleaning system includes an air bag, an electromagnetic pulse valve and a blow pipe. The air bag is tightly connected to the box body, the air outlet end of the air bag is connected to the electromagnetic pulse valve, the air outlet end of the electromagnetic pulse valve is connected to the blow pipe, and a plurality of nozzles are provided on the blow pipe, and the air outlet of the nozzles faces the adjusting device.

[0009] The air bag is used to store compressed gas, and the electromagnetic pulse valve is used to spray compressed gas on time. When cleaning, the electromagnetic pulse valve opens, and the compressed gas flows out of the air bag, flows along the blowpipe, and is finally sprayed out through the nozzle. The compressed gas flows to the regulating device, and enters the dust collecting device after being guided by the regulating device. The impact force of the airflow is used to remove the accumulated dust.

[0010] Furthermore, the dust collecting device includes a guide plate, a frame and a cloth bag, the cloth bag is mounted on the frame, the frame is firmly connected to the guide plate, a connecting plate is provided in the box body, a movable groove is provided on the connecting plate, the guide plate is slidably connected to the movable groove, a return spring is provided in the movable groove, one end of the return spring is firmly connected to the guide plate, and the other end of the return spring is firmly connected to the inner wall of the movable groove.

[0011] The guide plate is installed in the movable groove to provide support for the dust collecting device, and the frame is used to provide support for the cloth bag. The cloth bag is used to filter dust in the gas. When the dust on the cloth bag accumulates to a certain extent, under the influence of the dust's own gravity, the guide plate will slide downward along the movable groove, and the return spring will be compressed. When the dust is removed, the guide plate will return to its original position under the elastic force of the return spring.

[0012] Furthermore, the adjusting device comprises a guide seat, an adjusting block, an adjusting spring, a connecting rod and a swinging rod, the guide seat is tightly connected to the guide plate, the diameter of the guide seat is smaller than the diameter of the cloth bag, a guide flow channel, a sliding groove, a connecting flow channel and an annular flow channel are arranged in the guide seat, the air inlet of the guide flow channel faces the nozzle, the adjusting block is slidingly connected to the sliding groove, the air outlet of the guide flow channel is connected to the sliding groove, the connecting flow channel is used to connect the sliding groove and the annular flow channel, the connecting flow channel is located at one end of the sliding groove away from the air outlet of the guide flow channel, one end of the adjusting spring is tightly connected to the adjusting block, the other end of the adjusting spring is tightly connected to the inner wall of the sliding groove, the adjusting spring is located at one end of the sliding groove close to the connecting flow channel, a plurality of outlet flow channels are arranged on the annular flow channel, the air outlet of the outlet flow channel faces the cloth bag, the adjusting block is provided with a first flow channel, the connecting rod is tightly connected to the adjusting block, and the swinging rod is tightly connected to the connecting rod;

[0013] During backflush: the first flow channel is connected to the connecting flow channel.

[0014] When the back-blowing airflow passes through the adjusting device, the airflow flows into the sliding groove through the guide flow channel, thereby impacting the adjusting block in the sliding groove. Under the impact force of the airflow, the adjusting block will slide to one side along the sliding groove, and the adjusting spring will be compressed. At this time, the first flow channel in the adjusting block is connected with the connecting flow channel, and the airflow will flow into the connecting flow channel along the first flow channel, and then enter the annular flow channel, and finally flow out from the outlet flow channel to the cloth bag for back-blowing operation, thereby removing the dust accumulated on the cloth bag. However, under the impact of the airflow alone, some dust that is difficult to remove will still adhere to the cloth bag, and the back-blowing airflow flows out intermittently under the control of the electromagnetic pulse valve. When the back-blowing airflow stops, under the elastic force of the adjusting spring, the adjusting block will slide back and forth along the sliding groove, thereby driving the connecting rod to do reciprocating motion, so that the swing rod swings back and forth in the cloth bag, thereby realizing the use of the impact force of the back-blowing airflow to drive the swing rod to swing back and forth, and using the vibration generated by the swing of the swing rod to remove the dust that is difficult to remove on the cloth bag, thereby improving the dust removal efficiency.

[0015] Furthermore, the inlet of the guide flow channel is conical.

[0016] When the airflow flows through the conical guide flow channel, the flow velocity will gradually increase under the guidance of the tapered pipe diameter, thereby improving the impact effect on the regulating block and increasing the reaction efficiency of the regulating block.

[0017] Furthermore, a flow guide cover is provided on the guide seat, a movable head is provided on the flow guide cover, the movable head is inserted into the air outlet of the nozzle, and the movable head is conical.

[0018] The back-blowing airflow flows out through the nozzle, and the guide seat is fixed on the guide plate. When the dust accumulated on the bag is more, the guide seat will move downward under the influence of the gravity of the dust, driven by the guide plate. The more dust there is, the longer the guide seat moves downward, the longer the distance from the movable head to the nozzle outlet, the larger the flow cross-section of the nozzle outlet, and the more airflow flows out. The output volume of the back-blowing airflow is automatically controlled according to the amount of dust accumulated on the bag, thereby improving the dust removal effect. The deflector is used to constrain the airflow and prevent it from escaping.

[0019] Furthermore, the diameter of the swing rod is reduced, and a plurality of vibration guide rods are arranged on the swing rod, and the vibration guide rods are hinged to the frame.

[0020] Driven by the back-blowing airflow, the swing arm will swing back and forth, and transmit the swing to the frame through the vibration guide rod, and then transmit the vibration to the cloth bag mounted on the frame, so as to remove the dust on the cloth bag that is difficult to remove by vibration. Under the influence of its own gravity, most of the dust will gather at the lower end of the cloth bag. By reducing the diameter of the swing arm and making the strength of the swing arm at the end low, the greater the swing amplitude, the greater the vibration transmitted to the cloth bag. The vibration amplitude can be automatically adjusted according to the distribution of dust on the cloth bag, thereby further improving the dust removal effect.

[0021] Furthermore, the cloth bag is made of high temperature resistant and corrosion resistant material.

[0022] In order to adapt to filtration under different working conditions, the bags are made of high temperature resistant and corrosion resistant materials.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention utilizes the impact force of the back-blowing airflow, and the airflow flows into the sliding groove through the guide flow channel, thereby impacting the adjustment block in the sliding groove. Under the impact force of the airflow, the adjustment block will slide to one side along the sliding groove, and the adjustment spring will be compressed by force. At this time, the first flow channel in the adjustment block is connected with the connecting flow channel, and the airflow will flow into the connecting flow channel along the first flow channel, and then enter the annular flow channel, and finally flow out from the outlet flow channel into the cloth bag for back-blowing operation, thereby removing the dust accumulated on the cloth bag. However, under the impact of the airflow alone, some difficult-to-remove dust will still adhere to the bag, and the back-blowing airflow is intermittently flowed out under the control of the electromagnetic pulse valve. When the back-blowing airflow stops, under the elastic force of the adjusting spring, the adjusting block will slide back and forth along the sliding groove, thereby driving the connecting rod to move back and forth, causing the swing rod to swing back and forth in the bag, thereby utilizing the impact force of the back-blowing airflow to drive the swing rod to swing back and forth, and utilizing the vibration generated by the swing of the swing rod to remove the difficult-to-remove dust on the bag, thereby improving the dust removal efficiency.

[0024] Under the influence of the gravity of the dust, the guide seat will move downward driven by the guide plate. The more dust there is, the longer the guide seat will move downward, the longer the distance between the movable head and the nozzle outlet will be, the larger the flow cross-section of the nozzle outlet will be, and the more airflow will flow out. This realizes automatic control of the air output of the back-blowing airflow according to the amount of dust accumulated on the bag, thereby improving the dust removal effect.

[0025] Driven by the back-blowing airflow, the swing arm will swing back and forth, and transmit the swing to the frame through the vibration guide rod, and then transmit the vibration to the cloth bag mounted on the frame, so as to remove the dust on the cloth bag that is difficult to remove by vibration. Under the influence of its own gravity, most of the dust will gather at the lower end of the cloth bag. By reducing the diameter of the swing arm and making the strength of the swing arm at the end low, the greater the swing amplitude, the greater the vibration transmitted to the cloth bag. The vibration amplitude can be automatically adjusted according to the distribution of dust on the cloth bag, thereby further improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a partial cross-sectional view of the present invention;

[0029] Figure 3 yes Figure 2 A partial enlarged view of the A direction;

[0030] Figure 4 is a schematic diagram of a dust collecting device of the present invention;

[0031] Figure 5 yes Figure 4 A local B-direction enlarged view;

[0032] Figure 6 is a schematic diagram of the regulating device of the present invention;

[0033] Figure 7 yes Figure 6 A local C-direction enlarged view;

[0034] Figure 8 yes Figure 6 A local D-direction enlarged view;

[0035] In the figure: 1-box, 11-inlet pipe, 12-outlet pipe, 13-ash hopper, 14-connecting plate, 141-movable groove, 2-ash cleaning system, 21-air bag, 22-electromagnetic pulse valve, 23-blow pipe, 231-nozzle, 3-ash discharge device, 4-dust collecting device, 41-guide plate, 42-frame, 43-cloth bag, 44-reset spring, 5-adjustment device, 51-guide seat, 511-guide flow channel, 512-sliding groove, 513-connecting flow channel, 514-annular flow channel, 515-outlet flow channel, 52-adjustment block, 521-first flow channel, 53-adjustment spring, 54-connecting rod, 55-swing rod, 551-vibration guide rod, 56-flow guide cover, 57-movable head. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-8 , the present invention provides a technical solution:

[0038] The bag filter includes a box body 1, a dust cleaning system 2, an ash discharge device 3, a dust collecting device 4 and an adjusting device 5. An air inlet pipe 11 and an air outlet pipe 12 are respectively provided on both sides of the box body 1. An ash hopper 13 is provided at the bottom of the box body 1. The discharge port of the ash hopper 13 is connected with the ash discharge device 3. The dust collecting device 4 is tightly connected with the box body 1. The dust collecting device 4 is located inside the box body 1. The adjusting device 5 is tightly connected with the dust collecting device 4. The adjusting device 5 is used to adjust the back-blowing airflow.

[0039] The box body 1 provides an installation basis for each device. The dust-containing gas enters the box body 1 through the air inlet pipe 11 and is adsorbed by the dust collecting device 4. The clean gas flows out from the air outlet pipe 12. Dust will accumulate on the dust collecting device 4, affecting the fluidity of the gas. The dust accumulated on the dust collecting device 4 is removed by starting the cleaning system 2 on time to maintain the fluidity inside the filter. When the cleaning system 2 is started, the air inlet pipe 11 is closed to prevent the two airflows from affecting each other. The dust washed down by the backwash airflow falls into the ash hopper 13. The ash hopper 13 is in an inverted cone shape. The dust falling into the ash hopper 13 will slide into the ash discharge device 3 under the influence of its own gravity and be discharged from the filter.

[0040] The dust cleaning system 2 includes an air bag 21, an electromagnetic pulse valve 22 and a blowing pipe 23. The air bag 21 is tightly connected to the box body 1. The air outlet end of the air bag 21 is connected to the electromagnetic pulse valve 22. The air outlet end of the electromagnetic pulse valve 22 is connected to the blowing pipe 23. A plurality of nozzles 231 are provided on the blowing pipe 23. The air outlet of the nozzle 231 faces the adjusting device 5.

[0041] The air bag 21 is used to store compressed gas, and the electromagnetic pulse valve 22 is used to spray compressed gas on time. When cleaning, the electromagnetic pulse valve 22 is opened, and the compressed gas flows out of the air bag 21, flows along the blowing pipe 23, and is finally sprayed out through the nozzle 231. The compressed gas flows to the regulating device 5, and enters the dust collecting device 4 after being guided by the regulating device 5. The impact force of the airflow is used to remove the accumulated dust.

[0042] The dust collecting device 4 includes a guide plate 41, a frame 42 and a cloth bag 43. The cloth bag 43 is sleeved on the frame 42. The frame 42 is firmly connected to the guide plate 41. A connecting plate 14 is provided in the box body 1. A movable groove 141 is provided on the connecting plate 14. The guide plate 41 is slidably connected to the movable groove 141. A return spring 44 is provided in the movable groove 141. One end of the return spring 44 is firmly connected to the guide plate 41, and the other end of the return spring 44 is firmly connected to the inner wall of the movable groove 141.

[0043] The guide plate 41 is installed in the movable groove 141 to provide support for the dust collecting device 4, and the frame 42 is used to provide support for the cloth bag 43. The cloth bag 43 is used to filter dust in the gas. When the dust on the cloth bag accumulates to a certain extent, under the influence of the dust's own gravity, the guide plate 41 will slide downward along the movable groove 141, and the return spring 44 will be compressed. When the dust is removed, under the elastic force of the return spring 44, the guide plate 41 will return to its original position.

[0044] The adjusting device 5 includes a guide seat 51, an adjusting block 52, an adjusting spring 53, a connecting rod 54 and a swinging rod 55. The guide seat 51 is tightly connected to the guide plate 41. The diameter of the guide seat 51 is smaller than the diameter of the cloth bag 43. A guide flow channel 511, a sliding groove 512, a connecting flow channel 513 and an annular flow channel 514 are arranged in the guide seat 51. The air inlet of the guide flow channel 511 faces the nozzle 231. The adjusting block 52 is slidably connected to the sliding groove 512. The air outlet of the guide flow channel 511 is connected to the sliding groove 512. The connecting flow channel 513 is used to connect the sliding groove 512 with the annular flow channel 514. , the connecting flow channel 513 is located at one end of the air outlet of the sliding groove 512 away from the guide flow channel 511, one end of the adjusting spring 53 is fastened to the adjusting block 52, and the other end of the adjusting spring 53 is fastened to the inner wall of the sliding groove 512, the adjusting spring 53 is located in the sliding groove 512 near one end of the connecting flow channel 513, a plurality of outlet flow channels 515 are provided on the annular flow channel 514, and the air outlet of the outlet flow channel 515 faces the cloth bag 43, the adjusting block 52 is provided with a first flow channel 521, the connecting rod 54 is fastened to the adjusting block 52, and the swing rod 55 is fastened to the connecting rod 54;

[0045] During backflush: the first flow channel 521 is connected to the connecting flow channel 513 .

[0046] When the back-blowing airflow passes through the regulating device 5, the airflow flows into the sliding groove 512 through the guide channel 511, thereby impacting the regulating block 52 in the sliding groove 512. Under the impact force of the airflow, the regulating block 52 will slide to one side along the sliding groove 512, and the regulating spring 53 will be compressed. At this time, the first channel 521 in the regulating block 52 is connected with the connecting channel 513, and the airflow will flow into the connecting channel 513 along the first channel 521, and then enter the annular channel 514, and finally flow out from the outlet channel 515 into the cloth bag 43 for back-blowing operation, thereby removing the dust accumulated on the cloth bag 43. However, under the impact of the airflow alone, some dust that is difficult to remove will still adhere to the cloth bag, and the back-blowing airflow is intermittently discharged under the control of the electromagnetic pulse valve 22. When the back-blowing airflow stops, under the elastic force of the adjusting spring 53, the adjusting block 52 will slide back and forth along the sliding groove 512, thereby driving the connecting rod 54 to do reciprocating motion, so that the swing rod 55 swings back and forth in the cloth bag 43, thereby utilizing the impact force of the back-blowing airflow to drive the swing rod 55 to swing back and forth, and utilizing the vibration generated by the swing of the swing rod 55 to remove the dust that is difficult to remove from the cloth bag, thereby improving the dust removal efficiency.

[0047] The inlet of the guide flow channel 511 is conical.

[0048] When the airflow flows through the conical guide flow channel 511 , the flow velocity will gradually increase under the guidance of the tapered pipe diameter, thereby improving the impact effect on the regulating block 52 and increasing the reaction efficiency of the regulating block 52 .

[0049] A flow guide cover 56 is disposed on the guide seat 51 , and a movable head 57 is disposed on the flow guide cover 56 . The movable head 57 is inserted into the air outlet of the nozzle 231 , and the movable head 57 is in a cone shape.

[0050] The back-blowing airflow flows out through the nozzle 231, and the guide seat 51 is fixed on the guide plate 41. When more dust is accumulated on the cloth bag 43, under the influence of the gravity of the dust, the guide seat 51 will move downward under the drive of the guide plate 41, and the more dust there is, the longer the distance the guide seat 51 moves downward, the longer the distance between the movable head 57 and the air outlet of the nozzle 231 is, the larger the flow cross-section of the air outlet of the nozzle 231 is, and the more airflow flows out. The air outlet volume of the back-blowing airflow is automatically controlled according to the amount of dust accumulated on the cloth bag 43, thereby improving the dust removal effect. The air guide cover 56 is used to constrain the airflow and prevent it from escaping.

[0051] The diameter of the swing rod 55 is reduced, and a plurality of vibration guide rods 551 are provided on the swing rod 55 . The vibration guide rods 551 are hinged to the frame 42 .

[0052] Driven by the back-blowing airflow, the swing rod 55 will swing back and forth, and transmit the swing to the frame 42 through the vibration guide rod 551, and then transmit the vibration to the cloth bag 43 mounted on the frame 42, so as to remove the dust on the cloth bag that is difficult to remove by utilizing the vibration. Under the influence of its own gravity, most of the dust will gather at the lower end of the cloth bag 43. By reducing the diameter of the swing rod 55, the strength of the swing rod 55 at the end is low, and the greater the swing amplitude, the greater the vibration transmitted to the cloth bag 43. Thus, the vibration amplitude can be automatically adjusted according to the distribution of dust on the cloth bag 43, thereby further improving the dust removal effect.

[0053] The cloth bag 43 is made of a high temperature resistant and corrosion resistant material.

[0054] In order to adapt to filtering under different working conditions, the cloth bag 43 is made of high temperature resistant and corrosion resistant material.

[0055] The working principle of the present invention is as follows: when the back-blowing airflow passes through the regulating device 5, the airflow flows into the sliding groove 512 through the guide channel 511, thereby impacting the regulating block 52 in the sliding groove 512. Under the impact force of the airflow, the regulating block 52 will slide to one side along the sliding groove 512, and the regulating spring 53 will be compressed. At this time, the first channel 521 in the regulating block 52 is connected with the connecting channel 513, and the airflow will flow into the connecting channel 513 along the first channel 521, and then enter the annular channel 514, and finally flow out from the outlet channel 515 to the cloth bag 43 for back-blowing operation, thereby removing the dust accumulated on the cloth bag 43. However, under the impact of the airflow alone, some dust that is difficult to remove will still adhere to the cloth bag, and the back-blowing airflow is controlled by the electromagnetic pulse valve 22. The lower part is intermittent flow. When the back-blowing airflow stops, under the elastic force of the adjusting spring 53, the adjusting block 52 will slide back and forth along the sliding groove 512, thereby driving the connecting rod 54 to do reciprocating motion, so that the swing rod 55 swings back and forth in the cloth bag 43, and transmits the swing to the frame 42 through the vibration guide rod 551, and then transmits the vibration to the cloth bag 43 mounted on the frame 42, so as to utilize the vibration to remove the dust on the cloth bag that is difficult to remove. Under the influence of its own gravity, most of the dust will gather at the lower end of the cloth bag 43. By reducing the diameter of the swing rod 55, the strength of the swing rod 55 at the end is low. The larger the swing amplitude, the greater the vibration transmitted to the cloth bag 43. The effect of automatically adjusting the vibration amplitude according to the dust distribution on the cloth bag 43 is achieved, thereby further improving the dust removal effect.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high temperature and corrosion resistant gas bag filter, characterized in that: The bag filter comprises a box body (1), an ash cleaning system (2), an ash discharge device (3), a dust collecting device (4) and an adjusting device (5); an air inlet pipe (11) and an air outlet pipe (12) are respectively arranged on both sides of the box body (1); an ash hopper (13) is arranged below the box body (1); the discharge port of the ash hopper (13) is communicated with the ash discharge device (3); the dust collecting device (4) is tightly connected to the box body (1); the dust collecting device (4) is located inside the box body (1); the adjusting device (5) is tightly connected to the dust collecting device (4); and the adjusting device (5) is used to adjust the back-blowing airflow; The dust collecting device (4) comprises a guide plate (41), a frame (42) and a cloth bag (43); the cloth bag (43) is sleeved on the frame (42); the frame (42) is tightly connected to the guide plate (41); a connecting plate (14) is provided in the box body (1); a movable groove (141) is provided on the connecting plate (14); the guide plate (41) is slidably connected to the movable groove (141); a return spring (44) is provided in the movable groove (141); one end of the return spring (44) is tightly connected to the guide plate (41); and the other end of the return spring (44) is tightly connected to the inner wall of the movable groove (141); The adjusting device (5) comprises a guide seat (51), an adjusting block (52), an adjusting spring (53), a connecting rod (54) and a swinging rod (55); the guide seat (51) is tightly connected to the guide plate (41); the diameter of the guide seat (51) is smaller than the diameter of the cloth bag (43); a guide flow channel (511), a sliding groove (512), a connecting flow channel (513) and an annular flow channel (514) are provided in the guide seat (51); an air inlet of the guide flow channel (511) faces the nozzle (231); the adjusting block (52) is slidably connected to the sliding groove (512); an air outlet of the guide flow channel (511) is connected to the sliding groove (512); the connecting flow channel (513) is used to connect the sliding groove (512) and the annular flow channel (514); 14), the connecting flow channel (513) is located at one end of the sliding groove (512) away from the air outlet of the guide flow channel (511), one end of the adjusting spring (53) is tightly connected to the adjusting block (52), the other end of the adjusting spring (53) is tightly connected to the inner wall of the sliding groove (512), the adjusting spring (53) is located at one end of the sliding groove (512) close to the connecting flow channel (513), the annular flow channel (514) is provided with a plurality of outlet flow channels (515), the air outlet of the outlet flow channels (515) faces the cloth bag (43), the adjusting block (52) is provided with a first flow channel (521), the connecting rod (54) is tightly connected to the adjusting block (52), and the swing rod (55) is tightly connected to the connecting rod (54); During backflushing: the first flow channel (521) is connected to the connecting flow channel (513); The cloth bag (43) is made of a high temperature resistant and corrosion resistant material.

2. The high temperature and corrosion resistant gas bag filter according to claim 1, characterized in that: The dust cleaning system (2) comprises an air bag (21), an electromagnetic pulse valve (22) and a blowing pipe (23); the air bag (21) is tightly connected to the housing (1); the air outlet of the air bag (21) is in communication with the electromagnetic pulse valve (22); the air outlet of the electromagnetic pulse valve (22) is in communication with the blowing pipe (23); a plurality of nozzles (231) are provided on the blowing pipe (23); the air outlets of the nozzles (231) face the regulating device (5).

3. The high temperature and corrosion resistant gas bag filter according to claim 1, characterized in that: The inlet of the guide flow channel (511) is conical.

4. The high temperature and corrosion resistant gas bag filter according to claim 1, characterized in that: The guide seat (51) is provided with a flow guide cover (56), and the flow guide cover (56) is provided with a movable head (57). The movable head (57) is inserted into the air outlet of the nozzle (231), and the movable head (57) is conical.

5. The high temperature and corrosion resistant gas bag filter according to claim 4, characterized in that: The diameter of the swing rod (55) is reduced, and a plurality of vibration guide rods (551) are provided on the swing rod (55), wherein the vibration guide rods (551) are hinged to the frame (42).

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