Self-adjusting pulse dust collector

Abstract

The invention relates to the technical field of separation devices, in particular to a self-adjusting pulse dust collector which comprises a rack, a filtering assembly, a blowing assembly and an air pump. Wherein the filter assembly comprises an outer cylinder and a filter bag; according to the bag type dust collector, ash removal is carried out on one or more filter bags through the blowing assembly, and the filter bags are separated by the outer cylinder, so that the problem of cross contamination caused by the fact that dust is sprayed to adjacent filter bags in the ash removal process of the bag type dust collector in the prior art is solved. By arranging a tension spring, a limiting assembly and a triggering assembly, the filter bag is folded when being damaged, the damaged part is blocked, the situation that gas leaves the shell before being filtered is avoided, meanwhile, the damaged filter bag is convenient to find out, and the maintenance efficiency is improved. By arranging the fan blades, dust in the air is separated from the air under the action of centrifugal force, the dust removal efficiency is further improved, and the dust removal period is shortened; the fan blades rotate around the axes of the fan blades through the rotating assembly, dust is prevented from being blocked during dust removal, and dust-containing gas is prevented from entering the filter cavity when the filter bag is damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of separation devices, and particularly relates to a self-regulating pulse dust collector. Background Art

[0002] A pulse dust collector is a new type of high-efficiency dust removal device improved on the basis of a bag dust collector. Its working principle is to filter the dust-containing gas by the filtering action of a fiber fabric. When the dust-containing gas enters the bag dust collector, dust with large particles and high specific gravity settles down due to the action of gravity and falls into the ash hopper; when the gas containing finer dust passes through the filter bag, the dust is retained, and the gas is purified. And the clean air is discharged through the filter bag. When cleaning the filter bag, a blowing assembly is used to inject high-pressure or low-pressure gas into the bag.

[0003] However, when the existing bag dust collector is cleaned, there is a problem that the air pressure reaching the bottom of the bag is too low during pulse cleaning due to the too long filter bag, which cannot effectively clean the filter bag. For this reason, the Chinese patent document with the publication number CN119056157A discloses a bag type pulse dust collector, which solves the problem of incomplete cleaning. However, in the process of cleaning the above-mentioned patent and the existing bag dust collectors, the dust is easily sprayed onto adjacent filter bags, resulting in poor cleaning effect and low cleaning efficiency. Moreover, when one of the multiple filter bags is damaged, it needs to be replaced, but it is difficult to distinguish the damaged filter bag from the multiple filter bags, and the maintenance efficiency is low, which in turn affects the dust removal efficiency. Summary of the Invention

[0004] According to the deficiencies of the prior art, the present invention provides a self-regulating pulse dust collector, which solves the problems that the dust is sprayed onto adjacent filter bags during the cleaning process of the existing dust collector and it is difficult to distinguish the damaged filter bag from multiple filter bags.

[0005] The self-regulating pulse dust collector of the present invention adopts the following technical solutions, including a frame, a filtering assembly, a blowing assembly and an air pump; A housing is fixedly connected to the frame, and an ash hopper is arranged at the lower end of the housing; a perforated plate is fixedly connected to the middle of the housing, the perforated plate is horizontally arranged, the perforated plate is provided with a plurality of air permeable holes, an air inlet is arranged on the lower side wall of the housing, and an air outlet is arranged at the upper end of the housing above the perforated plate; The number of the filtering assemblies is the same as the number of the air permeable holes; the plurality of filtering assemblies are arranged in a rectangular array in the housing; the filtering assembly includes an outer cylinder, a filter bag and a baffle; the outer cylinder extends vertically, and the upper end of the outer cylinder is fixedly connected to the perforated plate; a fixing ring is fixedly connected to each air permeable hole; the filter bag is cylindrical and extends vertically, the upper end of the filter bag is fixedly connected to the fixing ring and communicated with the air permeable hole, and a filtering cavity is defined between the outer cylinder and the filter bag; the baffle is connected to the filter bag and is used to block the opening at the lower end of the filter bag; The injection assembly is used to inject compressed air into one or more filter bags; The air pump is used to make the gas enter the housing from the air inlet, pass through the filter chamber, pass through the filter bag, and discharge from the air outlet of the housing.

[0006] Optionally, a tension spring is connected between the flower plate and the baffle, and a limiting component and a triggering component are arranged between the baffle and the outer cylinder. The limiting component is used to keep the distance between the baffle and the flower plate at a preset value, and the triggering component is used to release the limit of the limiting component when the air flow rate flowing through the outer periphery of the baffle is greater than the preset value.

[0007] Optionally, the limiting component includes a limiting ring and a plurality of limiting protrusions; the plurality of limiting protrusions are fixedly connected to the lower part of the inner wall of the outer cylinder, and the limiting protrusions extend radially inward along the outer cylinder; the limiting ring is rotatably connected to the baffle around its own axis, the limiting ring is horizontally arranged, a plurality of through holes are formed in the outer periphery of the limiting ring, and the shapes, sizes and numbers of the through holes are the same as those of the limiting protrusions. In the initial state, there is a preset included angle between the through holes and the limiting protrusions. The triggering component is used to make the limiting ring rotate around its own axis when the air flow rate flowing through the outer periphery of the baffle is greater than the preset value.

[0008] Optionally, the triggering component includes a rotating ring and a plurality of fan blades. The rotating ring is rotatably installed at the lower part of the baffle, the plurality of fan blades are evenly distributed along the circumferential direction of the rotating ring, and there is a preset included angle between the fan blades and the horizontal plane; the limiting ring is fixedly connected to the lower end of the rotating ring, and the position where the limiting ring contacts the outer cylinder is frictionally driven.

[0009] Optionally, a plurality of installation holes are formed in the circumferential wall of the rotating ring, and a fan blade is rotatably installed in each installation hole. A rotating component is arranged in the outer cylinder. The rotating component is used to drive the fan blade to rotate around its own axis when the baffle moves axially relative to the outer cylinder until the fan blade blocks the gap between the outer cylinder and the baffle.

[0010] Optionally, the rotating component includes a resistance column, a resistance disk and a plurality of friction plates; the resistance column extends vertically and is installed in the rotating ring so as to move up and down. The plurality of friction plates are vertically arranged, extend radially along the resistance column, and are evenly distributed on the outer periphery of the upper end of the resistance column along the circumferential direction of the resistance column. The number of friction plates is the same as the number of fan blades. The friction plates are arranged between the rotating shafts of two adjacent fan blades, and each friction plate is frictionally driven with a fan blade; the resistance disk is rotatably connected to the resistance column, and the resistance disk moves up and down relative to the outer cylinder; the connection position between the resistance disk and the resistance column is frictionally driven, and the outer periphery of the resistance disk is frictionally driven with the inner wall of the outer cylinder.

[0011] Optionally, a synchronizing ring is coaxially arranged above the resistance column.

[0012] Optionally, there are multiple blowing components, which are evenly distributed in the front-rear direction. Each blowing component includes a pipeline and multiple nozzles. The pipeline extends in the left-right direction, and the multiple nozzles are evenly distributed along the axial direction of the pipeline. Each nozzle corresponds to a filter bag. An air compressor is arranged on the housing, and the multiple pipelines are all connected to the air compression device. Each nozzle is connected with a pneumatic valve.

[0013] Optionally, a maintenance platform is arranged on the periphery of the housing; a maintenance staircase is fixedly installed on the frame, and the upper end of the maintenance staircase leads to the maintenance platform.

[0014] Optionally, the maintenance staircase is provided with a protective net.

[0015] The beneficial effects of the present invention are as follows: A self-regulating pulse dust collector of the present invention uses the blowing component to clean one or more filter bags, and an outer cylinder is arranged outside the filter bags to separate the multiple filter bags, thereby solving the problem in the prior art that in the process of cleaning the bag-type dust collector, the dust is sprayed onto adjacent filter bags, causing cross-contamination and affecting the cleaning effect and cleaning efficiency.

[0016] Furthermore, by setting the tension spring, the limiting component and the triggering component to fold when the filter bag is damaged, blocking the damaged part of the filter bag, so as to prevent the dust-containing gas from passing through the damaged part of the filter bag and discharging from the air outlet of the housing, ensuring the dust removal effect. And when the dust collector is being maintained, the intact filter bags are in the extended state, while the damaged filter bags are in the folded state, and the damaged filter bags can be easily distinguished from the multiple intact filter bags, improving the maintenance efficiency, and further avoiding affecting the dust removal efficiency due to too long maintenance and replacement time.

[0017] Furthermore, by setting the fan blades, when the dust-containing air contacts the fan blades, it is guided by the fan blades. After the dust-containing air enters the filtering chamber, while flowing upward, it rotates around the axis of the rotating ring, and the dust in the air is thrown to the inner wall of the outer cylinder under the action of centrifugal force, and then falls into the ash hopper under the action of gravity. Further improving the dust removal efficiency and shortening the cleaning cycle.

[0018] Furthermore, by setting the rotating component to drive the fan blades to rotate around their own axes, making the fan blades tend to be vertical during the cleaning process, so as to avoid the dust being blocked by the fan blades during the process of falling into the ash hopper and ensuring the cleaning effect. When the filter bag is damaged, the fan blades are rotated to the horizontal state to block the gap between the outer cylinder and the baffle, thereby blocking the dust-containing gas from entering the filtering chamber and further ensuring the dust removal effect when the filter bag is damaged. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of a self-regulating pulse dust collector of the present invention; Figure 2 It is a schematic diagram of the internal structure of the housing in a self-regulating pulse dust collector of the present invention; Figure 3 It is a side view of a self-regulating pulse dust collector of the present invention; Figure 4 It is Figure 3 the cross-sectional view along A-A in Figure 5 It is the cross-sectional view along A-A when the filter bag in a self-regulating pulse dust collector of the present invention is in a damaged state Figure 3 in Figure 6 It is Figure 4 the enlarged view at X in

[0021] In the figure: 100, frame; 110, housing; 111, flower plate; 112, fixing ring; 113, air inlet; 114, air outlet; 120, ash hopper; 130, maintenance platform; 140, maintenance staircase; 141, protective net; 200, filtering component; 210, outer cylinder; 220, filter bag; 230, baffle; 240, tension spring; 300, jetting component; 310, pipeline; 320, nozzle; 330, air compressor; 400, limiting component; 410, limiting ring; 420, limiting protrusion; 500, triggering component; 510, rotating ring; 520, fan blade; 600, rotating component; 610, resistance column; 620, resistance disk; 630, friction plate; 640, synchronous ring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] As shown Figures 1 to 6 in the figure, a self - regulating pulse dust collector provided by an embodiment of the present invention includes a frame 100, a filtering assembly 200, a blowing assembly 300 and an air pump; A housing 110 is fixedly connected to the frame 100, and a dust hopper 120 is arranged at the lower end of the housing 110; A flower plate 111 is fixedly connected to the middle of the housing 110, the flower plate 111 is horizontally arranged, the flower plate 111 is provided with a plurality of air - permeable holes, an air inlet 113 is arranged on the lower side wall of the lower part of the housing 110, and an air outlet 114 is arranged at the upper end of the housing 110 above the flower plate 111; A maintenance platform 130 is arranged outside the housing 110; The frame 100 is fixedly installed with a maintenance staircase 140, and the upper end of the maintenance staircase 140 leads to the maintenance platform 130. A protective net 141 is arranged on the maintenance staircase 140.

[0024] The number of the filtering assemblies 200 is the same as the number of the air - permeable holes; The plurality of filtering assemblies 200 are arranged in a rectangular array in the housing 110; The filtering assembly 200 includes an outer cylinder 210, a filter bag 220 and a baffle 230; The outer cylinder 210 extends vertically, and the upper end of the outer cylinder 210 is fixedly connected to the flower plate 111; A fixing ring 112 is fixedly connected to each air - permeable hole; The filter bag 220 is in a cylindrical shape and extends vertically, the upper end of the filter bag 220 is fixedly connected to the fixing ring 112 and is communicated with the air - permeable hole, and a filtering cavity is defined between the outer cylinder 210 and the filter bag 220; The baffle 230 is connected to the filter bag 220 for blocking the opening at the lower end of the filter bag 220; The blowing assembly 300 is used for blowing compressed air into a single or multiple filter bags 220; There are a plurality of blowing assemblies 300, and the plurality of blowing assemblies 300 are evenly distributed in the front - to - back direction. The blowing assembly 300 includes a pipeline 310 and a plurality of nozzles 320. The pipeline 310 extends in the left - to - right direction, and the plurality of nozzles 320 are evenly distributed along the axial direction of the pipeline 310. Each nozzle 320 corresponds to a filter bag 220; An air compressor 330 is arranged on the housing 110, and the plurality of pipelines 310 are all communicated with the air compression device, and each nozzle 320 is connected with a pneumatic valve.

[0025] The air pump is used for enabling the gas to enter the housing 110 from the air inlet 113, passing through the filtering cavity and then passing through the filter bag 220, and discharging from the air outlet 114 out of the housing 110.

[0026] When dust removal is required, the air pump is turned on. The air pump enables the dust - containing gas to enter the housing 110 from the air inlet 113. After the gas enters the housing 110, it enters the filtering cavity from the lower end of the outer cylinder 210. The large - particle dust settles under the action of gravity and falls into the dust hopper 120. The air carries the fine dust and moves towards the filter bag 220. The dust is blocked by the filter bag 220 and stays on the outer surface of the filter bag 220. After the clean air passes through the filter bag 220, it leaves the filter bag 220 from the air - permeable hole and finally leaves the housing 110 through the air outlet 114.

[0027] As the dust removal work progresses, the dust layer on the outer surface of the filter bag 220 gradually thickens, and the resistance of the air passing through the filter bag 220 gradually increases. When the gas flow rate discharged from the filter bag 220 is less than the preset value, the blowing assembly 300 is started. The high-pressure gas in the air compressor 330 leads to the nozzle 320 through the pipeline 310, and the air valve connected to the nozzle 320 corresponding to the filter bag 220 to be cleaned is opened, and compressed air is blown into the filter bag 220. Under the action of the high-pressure air, the dust on the filter bag 220 is separated from the filter bag 220, and then settles under the action of gravity or slides downward along the inner wall of the outer cylinder 210, and finally falls into the ash hopper 120. The present invention cleans the ash of a single or multiple blocked filter bags 220 through the blowing assembly 300, and an outer cylinder 210 is arranged outside the filter bag 220, so as to separate multiple filter bags 220, thereby solving the problem that in the prior art, the dust is sprayed onto the adjacent filter bags 220 during the ash cleaning process of the bag filter, resulting in cross contamination and affecting the ash cleaning effect and efficiency.

[0028] In a further embodiment, a tension spring 240 is connected between the flower plate 111 and the baffle 230, and a limiting assembly 400 and a triggering assembly 500 are arranged between the baffle 230 and the outer cylinder 210. The limiting assembly 400 is used to keep the distance between the baffle 230 and the flower plate 111 at a preset value, and the triggering assembly 500 is used to release the limit of the limiting assembly 400 when the air flow rate flowing through the outer periphery of the baffle 230 is greater than the preset value.

[0029] During dust removal, the flow velocity of the air passing through the intact filter bag 220 is less than that passing through the damaged filter bag 220. When the filter bag 220 is in an intact state, the limiting assembly 400 keeps the distance between the baffle 230 and the flower plate 111 at a preset value. Once the filter bag 220 is damaged, the air can enter the filter bag 220 through the damaged opening on the filter bag 220. At this time, the flow velocity of the air increases, and at this time, the triggering assembly 500 releases the limit of the limiting assembly 400, and the tension spring 240 drives the baffle 230 to move upward quickly. When the baffle 230 moves upward, the lower end of the filter bag 220 moves upward synchronously, and the filter bag 220 appears wrinkled, and the wrinkles block the damage of the filter bag 220, thereby preventing the dust-containing gas from passing through the damaged part of the filter bag 220 and discharging from the air outlet 114 out of the housing 110, ensuring the dust removal effect. And when the dust collector is overhauled, the intact filter bag 220 is in an extended state, while the damaged filter bag 220 is in a folded state, and the damaged filter bag 220 can be easily distinguished from multiple intact filter bags 220, improving the maintenance efficiency, and further avoiding affecting the dust removal efficiency due to too long maintenance and replacement time.

[0030] In a further embodiment, the limiting component 400 includes a limiting ring 410 and a plurality of limiting protrusions 420; the plurality of limiting protrusions 420 are fixedly connected to the lower part of the inner wall of the outer cylinder 210, and the limiting protrusions 420 extend radially inward along the outer cylinder 210; the limiting ring 410 is rotatably connected to the baffle 230 around its own axis, the limiting ring 410 is horizontally arranged, and a plurality of through holes are formed in the outer periphery of the limiting ring 410, and the shapes, sizes and numbers of the through holes are the same as those of the limiting protrusions 420. In the initial state, there is a preset included angle between the through holes and the limiting protrusions 420. The triggering component 500 is used to make the limiting ring 410 rotate around its own axis when the air flow rate flowing through the outer periphery of the baffle 230 is greater than a preset value.

[0031] In the initial state, there is a preset included angle between the through holes and the limiting protrusions 420. The tension spring 240 has a tendency to move the limiting ring 410 upward, but the limiting ring 410 is blocked by the limiting protrusions 420 and cannot move upward. When the filter bag 220 is damaged, air can enter the filter bag 220 through the damaged opening on the filter bag 220. At this time, the flow rate of the air increases, and at this time, the triggering component 500 drives the limiting ring 410 to rotate. When the through hole is aligned with the limiting protrusion 420, the tension spring 240 drives the limiting ring 410 to move upward. When the limiting ring 410 moves upward, it drives the baffle 230 to move upward synchronously, thereby folding the filter bag 220.

[0032] In a further embodiment, the triggering component 500 includes a rotating ring 510 and a plurality of fan blades 520. The rotating ring 510 is rotatably installed at the lower part of the baffle 230. The plurality of fan blades 520 are evenly distributed along the circumference of the rotating ring 510, and there is a preset included angle between the fan blades 520 and the horizontal plane; the limiting ring 410 is fixedly connected to the lower end of the rotating ring 510, and the position where the limiting ring 410 contacts the outer cylinder 210 is frictionally driven.

[0033] Due to the frictional force between the limiting ring 410 and the outer cylinder 210, when the dust-containing gas enters the housing 110 through the air inlet 113, when the filter bag 220 is in a complete state, the flow rate of the air passing through the fan blades 520 is not sufficient to drive the fan blades 520 to rotate around the axis of the rotating ring 510. When the dust-containing air contacts the fan blades 520, it is guided by the fan blades 520. After the dust-containing air enters the filtering chamber, while flowing upward, it rotates around the axis of the rotating ring 510. The dust in the air is thrown to the inner wall of the outer cylinder 210 under the action of centrifugal force, and then falls into the ash hopper 120 under the action of gravity.

[0034] When the filter bag 220 is damaged, the flow velocity of the air passing through the fan blade 520 increases, driving the fan blade 520 to rotate around the axis of the rotating ring 510. When the fan blade 520 rotates around the axis of the rotating ring 510, the rotating ring 510 rotates synchronously. The rotating ring 510 drives the limiting ring 410 to rotate synchronously. After the limiting ring 410 rotates a preset angle, the through hole is aligned with the limiting protrusion 420, and the tension spring 240 drives the limiting ring 410 to move upward. When the limiting ring 410 moves upward, it drives the baffle 230 to move upward synchronously, thereby folding the filter bag 220.

[0035] In a further embodiment, a plurality of mounting holes are formed in the peripheral wall of the rotating ring 510, and a fan blade 520 is rotatably mounted in each mounting hole. A rotating assembly 600 is arranged in the outer cylinder 210. The rotating assembly 600 is used to drive the fan blade 520 to rotate around its own axis when the baffle 230 axially moves relative to the outer cylinder 210 until the fan blade 520 blocks the gap between the outer cylinder 210 and the baffle 230.

[0036] The rotating assembly 600 includes a resistance column 610, a resistance disk 620 and a plurality of friction plates 630. The resistance column 610 extends vertically and is mounted in the rotating ring 510 so as to move up and down. The plurality of friction plates 630 are arranged vertically, extend radially along the resistance column 610, and are uniformly distributed around the outer periphery of the upper end of the resistance column 610 in the circumferential direction of the resistance column 610. The number of the friction plates 630 is the same as that of the fan blades 520. The friction plates 630 are arranged between the rotating shafts of two adjacent fan blades 520, and each friction plate 630 is in frictional transmission with a fan blade 520. The resistance disk 620 is rotatably connected to the resistance column 610, and the resistance disk 620 moves up and down relative to the outer cylinder 210. The connection position between the resistance disk 620 and the resistance column 610 is in frictional transmission, and the outer periphery of the resistance disk 620 is in frictional transmission with the inner wall of the outer cylinder 210.

[0037] When the filter bag 220 is in a complete state and needs to be cleaned of dust, the spraying assembly 300 is started. The high-pressure gas in the air compressor 330 leads to the nozzle 320 through the pipeline 310. The air valve connected to the nozzle 320 corresponding to the filter bag 220 to be cleaned is opened, and compressed air is sprayed into the filter bag 220. Under the action of the high-pressure air, the dust on the filter bag 220 is separated from the filter bag 220, and then settles under the action of gravity or slides downward along the inner wall of the outer cylinder 210. The baffle 230 moves downward under the thrust of the high-pressure air. The baffle 230 drives the rotating ring 510 and the limiting ring 410 to move downward synchronously. Due to the frictional force between the resistance disk 620 and the outer cylinder 210, when the rotating ring 510 moves downward, the rotating ring 510 moves axially relative to the resistance column 610. At the same time, the fan blade 520 rolls relative to the friction plate 630, and the fan blade 520 rotates around its own axis, making the fan blade 520 tend to be vertical, so as to prevent the dust from being blocked by the fan blade 520 during the process of falling into the ash hopper 120 and ensure the dust cleaning effect.

[0038] When the filter bag 220 is damaged, the dust-containing air drives the fan blade 520 to rotate around the axis of the rotating ring 510. The fan blade 520 drives the rotating ring 510, the limiting ring 410 and the resistance column 610 to rotate synchronously. When the through hole is aligned with the limiting protrusion 420, the tension spring 240 drives the baffle 230 to move upward. The baffle 230 drives the rotating ring 510 and the limiting ring 410 to move upward synchronously. Due to the frictional force between the resistance disk 620 and the outer cylinder 210, when the rotating ring 510 moves upward, the rotating ring 510 moves axially relative to the resistance column 610. At the same time, the fan blade 520 rolls relative to the friction plate 630, and the fan blade 520 rotates around its own axis. Until the fan blade 520 is in a horizontal state, the gap between the outer cylinder 210 and the baffle 230 is blocked, so as to prevent the dust-containing gas from entering the filtration chamber, and further ensure the dust removal effect when the filter bag 220 is damaged.

[0039] In a further embodiment, a synchronous ring 640 is coaxially arranged above the resistance column 610. The upper end of the friction plate 630 is fixedly connected to the synchronous ring 640. When the fan blade 520 rotates around its own axis to the horizontal state, the rotating shaft of the fan blade 520 contacts the synchronous ring 640. After that, when the rotating ring 510 moves upward, it drives the resistance column 610 and the resistance disk 620 to move upward synchronously. When replacing the damaged filter bag 220, the structure inside the outer cylinder 210 can be quickly removed, making the maintenance work more convenient, further shortening the time for replacing the filter bag 220, and thus improving the dust removal efficiency.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, 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 self-regulating pulse dust collector, characterized in that: It includes a frame, a filter assembly, a spray assembly and an air pump; A shell is fixedly connected to the frame, and an ash hopper is arranged at the lower end of the shell; a flower plate is fixedly connected to the middle of the shell, the flower plate is arranged horizontally, and a plurality of air holes are opened on the flower plate, an air inlet is opened on the lower side wall of the shell, and an air outlet is opened on the upper end of the shell above the flower plate; The number of filter assemblies is consistent with the number of air holes; multiple filter assemblies are arranged in a rectangular array in the housing; the filter assembly includes an outer cylinder, a filter bag and a baffle; the outer cylinder extends vertically, and the upper end of the outer cylinder is fixedly connected to the flower plate; each air hole is fixedly connected to a fixing ring; the filter bag is cylindrical and extends vertically, and the upper end of the filter bag is fixedly connected to the fixing ring and communicated with the air hole, and a filter cavity is defined between the outer cylinder and the filter bag; the baffle is connected to the filter bag and is used to block the opening at the lower end of the filter bag; The spray assembly is used to spray compressed air into a single or multiple filter bags; The air pump is used to allow the gas to enter the housing from the air inlet, pass through the filter cavity, pass through the filter bag, and be discharged from the housing from the air outlet.

2. A self-regulating pulse dust collector according to claim 1, characterized in that: A tension spring is connected between the flower plate and the baffle, and a limit assembly and a trigger assembly are arranged between the baffle and the outer tube. The limit assembly is used to keep the distance between the baffle and the flower plate at a preset value, and the trigger assembly is used to release the limit assembly when the air flow rate passing through the periphery of the baffle is greater than a preset value.

3. A self-regulating pulse dust collector according to claim 2, characterized in that: The limiting assembly includes a limiting ring and a plurality of limiting protrusions; the plurality of limiting protrusions are fixedly connected to the lower part of the inner wall of the outer cylinder, and the limiting protrusions extend radially inwardly along the outer cylinder; the limiting ring is rotatably connected to the baffle around its own axis, the limiting ring is horizontally arranged, and a plurality of through holes are opened on the outer periphery of the limiting ring, and the through holes are consistent with the shape, size and number of the limiting protrusions. In the initial state, there is a preset angle between the through holes and the limiting protrusions, and the trigger assembly is used to rotate the limiting ring around its own axis when the air flow rate flowing through the outer periphery of the baffle is greater than a preset value.

4. A self-regulating pulse dust collector according to claim 3, characterized in that: The trigger assembly includes a rotating ring and multiple fan blades. The rotating ring is rotatably installed at the lower part of the baffle. The multiple fan blades are evenly distributed along the circumference of the rotating ring, and there is a preset angle between the fan blades and the horizontal plane. The limit ring is fixedly connected to the lower end of the rotating ring, and the position where the limit ring contacts the outer cylinder is frictionally transmitted.

5. A self-regulating pulse dust collector according to claim 4, characterized in that: A plurality of mounting holes are provided on the peripheral wall of the rotating ring, and a fan blade is rotatably mounted in each mounting hole. A rotating assembly is provided in the outer cylinder, and the rotating assembly is used to drive the fan blade to rotate around its own axis when the baffle moves axially relative to the outer cylinder, until the fan blade is in a position to block the gap between the outer cylinder and the baffle.

6. A self-regulating pulse dust collector according to claim 5, characterized in that: The rotating assembly includes a resistance column, a resistance disk and multiple friction plates; the resistance column extends vertically and is installed in the rotating ring for up and down movement; the multiple friction plates are vertically arranged, extending along the radial direction of the resistance column and evenly distributed on the outer periphery of the upper end of the resistance column along the circumferential direction of the resistance column; the number of friction plates is consistent with the number of fan blades, the friction plates are arranged between the rotating shafts of two adjacent fan blades, and each friction plate is frictionally transmitted with a fan blade; the resistance disk is rotatably connected to the resistance column, and the resistance disk moves up and down relative to the outer tube; the connection position of the resistance disk and the resistance column is frictionally transmitted, and the outer periphery of the resistance disk is frictionally transmitted with the inner wall of the outer tube.

7. A self-regulating pulse dust collector according to claim 6, characterized in that: A synchronization ring is coaxially arranged above the resistance column.

8. The self-regulating pulse dust collector according to claim 1, characterized in that: There are multiple spray assemblies, which are evenly distributed along the front-to-back direction. The spray assemblies include a pipeline and multiple nozzles. The pipeline extends along the left-right direction. The multiple nozzles are evenly distributed along the axial direction of the pipeline, and each nozzle corresponds to a filter bag. An air compressor is arranged on the shell, and the multiple pipelines are connected to the air compression device, and each nozzle is connected to an air valve.

9. The self-regulating pulse dust collector according to claim 1, characterized in that: An inspection platform is arranged outside the shell; an inspection staircase is fixedly installed on the frame, and the upper end of the inspection staircase leads to the inspection platform.

10. A self-regulating pulse dust collector according to claim 9, characterized in that: The inspection stairs are equipped with protective nets.

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