A high efficiency bag dust collector

Abstract

The present invention discloses a high-efficiency bag dust collector, which belongs to the technical field of bag dust removal, and includes a dust collector housing, an air volume distribution structure, a pressure difference feedback component, a support plate and an isolation plate, wherein the isolation plate is fixedly connected in the dust collector housing, the support plate is slidably connected in the dust collector housing, the pressure difference feedback component is arranged on the support plate, the air volume distribution structure is arranged on the isolation plate, the pressure difference feedback component includes a drawing tube, and the air volume distribution structure and the pressure difference feedback component are connected through the drawing tube. By setting the air volume distribution structure and the pressure difference feedback component, the present invention can change the effective flow area of ​​the air volume distribution structure according to the pressure difference in different bags, thereby performing secondary uniform distribution of the dust-laden airflow, effectively improving the uniformity of the loss of the bag filter element, and effectively solving the problem that the flow rate of dust-laden gas between different bag filter elements is relatively different and the filtering participation rate of the bag filter element is uneven.

Description

Technical Field

[0001] The invention belongs to the technical field of bag dust removal, and in particular relates to a high-efficiency bag dust collector. Background Art

[0002] A bag dust collector is a device used to capture and separate solid particles in gases. It is widely used in industrial production processes to protect the environment. Traditional bag dust collectors are mainly composed of a shell, filter bags, cleaning devices, air intake and exhaust ducts, and a control system. After the dust-laden gas enters the dust collector, when it passes through the filter bag, the dust in it is intercepted by the fiber layer on the filter bag, and the clean gas is discharged through the filter bag. In a high-efficiency bag dust collector, uniform distribution of airflow is crucial to ensure uniform dust removal and dust removal efficiency of the filter bag.

[0003] However, traditional bag-type dust removal equipment lacks the distribution and regulation of airflow, resulting in that when the dust-laden airflow passes through the bag, it always acts on a row of bag filters close to the air inlet first, causing different dust accumulation rates in the bag filters, and the bag filters on the side away from the air inlet have a lower filtration participation rate, resulting in uneven life consumption of the bag filters. Therefore, in order to evenly distribute the dust-laden airflow, improve the uniformity of bag filter loss, and reduce the cost of bag replacement, a high-efficiency bag-type dust collector is proposed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high-efficiency bag dust collector. By setting an air volume distribution structure and a pressure difference feedback component, the effective flow area of ​​the air volume distribution structure can be changed according to the pressure difference in different bag filter elements, thereby performing secondary distribution of the flow of the dust-containing gas, so that different bag filter elements can evenly participate in gas dust removal, effectively solving the problem of uneven filtration participation rate between bags caused by the lack of airflow distribution adjustment function in current bag dust removal equipment.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a high-efficiency bag dust collector, including a dust collector shell, an air volume distribution structure, a pressure difference feedback assembly, a support plate and an isolation plate, the isolation plate is fixedly connected in the dust collector shell, the support plate is slidably connected in the dust collector shell, the pressure difference feedback assembly is arranged on the support plate, the air volume distribution structure is arranged on the isolation plate, the pressure difference feedback assembly includes a drawing tube, and the air volume distribution structure and the pressure difference feedback assembly are connected through a drawing tube.

[0006] Furthermore, the pressure difference feedback assembly includes a low-pressure detection tube, a piston block, a pressure difference tube, a pressure difference piston, an isolation block, a push rod, a movable plate, a wire drawing tube, a bag pressure tube and a movable piston. The low-pressure detection tube is fixedly connected to the support plate, the piston block is slidably connected in the low-pressure detection tube, the pressure difference tube is fixedly installed on the support plate, a connecting tube is provided between the pressure difference tube and the low-pressure detection tube, the pressure difference piston is slidably connected in the pressure difference tube, the isolation block is fixedly connected inside the pressure difference tube, the push rod is fixedly connected to the pressure difference piston, and the push rod slides Connected to the isolation block, the movable plate is fixedly connected to the push rod, one end of the wire drawing tube is installed on the support plate, a wire drawing wire is arranged in the wire drawing tube, one end of the wire drawing wire is fixedly connected to the movable plate, the bag pressure pipe is fixedly installed on the support plate, a hydraulic pipe is arranged between the bag pressure pipe and the pressure difference pipe, the movable piston is slidably connected inside the bag pressure pipe, and the pressure difference feedback component converts the accumulation amount of dust in the bag into an air pressure difference, so that the displacement of the wire drawing wire can be changed according to the pressure difference between different bags and the dust collector housing.

[0007] Furthermore, a limiting block is fixedly connected to the low-pressure detection tube, a resistance spring is provided inside the low-pressure detection tube, two ends of the resistance spring are fixedly connected to the piston block and the low-pressure detection tube respectively, a positioning block is fixedly connected inside the bag pressure tube, a reset spring is provided inside the bag pressure tube, and two ends of the reset spring are respectively fixedly connected to the moving piston and the bag pressure tube.

[0008] Furthermore, a high-pressure chamber and a low-pressure chamber are provided inside the pressure differential tube, and the high-pressure chamber and the low-pressure chamber are provided on both sides of the pressure differential piston, and the low-pressure chamber is provided between the isolation block and the pressure differential piston, and the low-pressure detection tube is connected to the low-pressure chamber through a connecting tube, and the bag pressure tube is connected to the high-pressure chamber through a hydraulic tube.

[0009] Furthermore, the air volume distribution structure includes a flow control box, a rotating rod, a wind shield, a movable plate and a reset spring. The flow control box is fixedly mounted on the isolation plate, the rotating rod is rotatably connected to the flow control box, the wind shield is fixedly connected to the rotating rod, the rotating rod is fixedly connected with a rotating rod, the movable plate is hingedly connected to the rotating rod, and both ends of the reset spring are hingedly connected to the flow control box and the movable plate respectively. The air volume distribution structure can limit the airflow of bags with excessive dust accumulation, so that the dust-containing airflow preferentially passes through bags with less dust accumulation, thereby realizing secondary uniform distribution of the airflow, so that different bag filters can evenly participate in dust removal.

[0010] Furthermore, the wind shields are provided in multiple groups and are arranged in parallel, the wind shields are all arranged inside the flow control box, the movable plate is fixedly connected with a fixed block, and the flow control box is fixedly connected with a stopper.

[0011] Furthermore, one end of the wire drawing tube away from the movable plate is fixedly mounted on the flow control box, and one end of the wire drawing wire is fixedly connected to the movable plate.

[0012] Furthermore, a guiding telescopic column is provided between the support plate and the isolation plate, a dust bag is provided between the support plate and the air volume distribution structure, the top of the dust bag is fixedly connected to the support plate, and the bottom of the dust bag is fixedly connected to the flow control box.

[0013] Furthermore, a fixing seat is fixedly connected inside the dust collector shell, and a tensioning spring is provided between the fixing seat and the support plate.

[0014] Furthermore, an air outlet is provided at the top of the dust collector shell, a collecting bucket is fixedly connected to the bottom of the dust collector shell, an air inlet is provided on the collecting bucket, and an ash collector is fixedly connected to the bottom of the collecting bucket.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] (1) In order to solve the problem that the conventional bag dust removal equipment cannot distribute and adjust the airflow, resulting in large differences in the flow rate of dust-containing gas between different bag filter elements and uneven filtration participation rate of bag filter elements, the present invention provides an air volume distribution structure and a pressure difference feedback component, which can change the effective flow area of ​​the air volume distribution structure according to the pressure difference in different bags, thereby performing secondary uniform distribution of the dust-containing airflow, effectively improving the uniformity of the loss of bag filter elements;

[0017] (2) By setting an air volume distribution structure and a pressure difference feedback component, the dust accumulation in the bag is converted into a pressure difference value, so that the displacement of the wire drawing wire can be changed according to the pressure difference value between different bags and the dust collector shell, so that the wind shield can be rotated at different angles, thereby limiting the airflow of the bag with excessive dust accumulation, so that the dust-laden airflow preferentially passes through the bag with less dust accumulation, thereby achieving secondary uniform distribution of the airflow, so that different bag filter elements can evenly participate in dust removal;

[0018] (3) In addition, by setting a pressure differential tube in the pressure differential feedback component, the air pressure in different bags is compared with the air pressure in the dust collector shell, and the reference air pressure of the pressure differential feedback component is unified, so that the airflow distribution of the air volume distribution structure is more reasonable, and the airflow distribution uniformity of the air volume distribution structure is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a high-efficiency bag dust collector proposed by the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a high-efficiency bag dust collector proposed by the present invention;

[0021] Figure 3 A schematic diagram of the partial structure of a high-efficiency bag dust collector proposed by the present invention;

[0022] Figure 4 for Figure 3 Schematic diagram of the local structure in;

[0023] Figure 5 A schematic diagram of the structure of a pressure difference feedback component of a high-efficiency bag dust collector proposed by the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the pressure differential pipe;

[0025] Figure 7 It is a schematic diagram of the internal structure of the bag pressure pipe;

[0026] Figure 8 A schematic diagram of the structure of an air volume distribution structure of a high-efficiency bag dust collector proposed by the present invention;

[0027] Fig. 9 Schematic diagram of the internal structure of the flow control box;

[0028] Fig.10 for Figure 8 The enlarged view of point A in the middle;

[0029] Fig.11 Schematic diagram of the connection between the support plate and the isolation plate.

[0030] Among them, 1. dust collector housing; 2. air volume distribution structure; 3. pressure difference feedback component; 4. support plate; 5. isolation plate; 6. dust bag; 7. collection bucket; 8. ash collector; 9. air inlet; 10. air outlet; 11. fixed seat; 12. tension spring; 13. guide telescopic column; 201. flow control box; 202. rotating rod; 203. wind shield; 204. rotating rod; 205. movable plate; 206. reset tension spring; 207. fixed block; 208. stop block ; 301, low pressure detection tube; 302, piston block; 303, differential pressure tube; 304, connecting tube; 305, high pressure chamber; 306, low pressure chamber; 307, differential pressure piston; 308, isolation block; 309, push rod; 310, moving plate; 311, drawing tube; 312, drawing wire; 313, bag pressure tube; 314, hydraulic tube; 315, moving piston; 316, limit block; 317, resistance spring; 318, positioning block; 319, reset spring.

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] like Figure 1-Figure 11 As shown, the present invention proposes a high-efficiency bag dust collector, including a dust collector shell 1, an air volume distribution structure 2, a pressure difference feedback component 3, a support plate 4 and an isolation plate 5, the isolation plate 5 is fixedly connected in the dust collector shell 1, the isolation plate 5 separates the bottom and the upper part of the dust collector shell 1 into two chambers, the support plate 4 is slidably connected in the dust collector shell 1, the pressure difference feedback component 3 is arranged on the support plate 4, the air volume distribution structure 2 is arranged on the isolation plate 5, the pressure difference feedback component 3 includes a drawing tube 311, and the air volume distribution structure 2 and the pressure difference feedback component 3 are connected through the drawing tube 311.

[0035] The pressure difference feedback assembly 3 includes a low pressure detection tube 301, a piston block 302, a pressure difference tube 303, a pressure difference piston 307, an isolation block 308, a push rod 309, a movable plate 310, a wire drawing tube 311, a bag pressure tube 313 and a movable piston 315. The low pressure detection tube 301 is fixedly connected to the support plate 4, the piston block 302 is slidably connected in the low pressure detection tube 301, the pressure difference tube 303 is fixedly installed on the support plate 4, a connecting tube 304 is provided between the pressure difference tube 303 and the low pressure detection tube 301, the pressure difference piston 307 is slidably connected in the pressure difference tube 303, and the isolation block 308 is provided. The block 308 is fixedly connected to the inside of the pressure differential pipe 303, the push rod 309 is fixedly connected to the pressure differential piston 307, the push rod 309 is slidably connected to the isolation block 308, the movable plate 310 is fixedly connected to the push rod 309, one end of the wire drawing tube 311 is installed on the support plate 4, the wire drawing tube 311 is provided with a wire drawing wire 312, one end of the wire drawing wire 312 is fixedly connected to the movable plate 310, the bag pressure pipe 313 is fixedly installed on the support plate 4, the bottom of the bag pressure pipe 313 extends into the inside of the dust bag 6, and a hydraulic pipe 3 is provided between the bag pressure pipe 313 and the pressure differential pipe 303 14. The movable piston 315 is slidably connected to the inside of the bag pressure tube 313; a limiting block 316 is fixedly connected to the low-pressure detection tube 301, and a resistance spring 317 is arranged inside the low-pressure detection tube 301. The two ends of the resistance spring 317 are respectively fixedly connected to the piston block 302 and the low-pressure detection tube 301. The limiting block 316 limits the movement of the upper part of the piston block 302. A positioning block 318 is fixedly connected to the bag pressure tube 313. The positioning block 318 limits the downward displacement of the movable piston 315. A return spring 319 is arranged in the bag pressure tube 313. The return spring The two ends of 319 are respectively fixedly connected to the moving piston 315 and the bag pressure tube 313, and the resistance spring 317 and the reset spring 319 respectively reset and provide resistance to the movement of the corresponding piston; a high-pressure chamber 305 and a low-pressure chamber 306 are arranged inside the pressure difference tube 303, and the high-pressure chamber 305 and the low-pressure chamber 306 are arranged on both sides of the pressure difference piston 307, and the low-pressure chamber 306 is arranged between the isolation block 308 and the pressure difference piston 307, the low-pressure detection tube 301 is connected to the low-pressure chamber 306 through the connecting tube 304, and the bag pressure tube 313 is connected to the high-pressure chamber 305 through the hydraulic tube 314;

[0036] In addition, the air volume distribution structure 2 includes a flow control box 201, a rotating rod 202, a wind shield 203, a movable plate 205 and a reset spring 206. The flow control box 201 is fixedly installed on the isolation plate 5, the rotating rod 202 is rotatably connected to the flow control box 201, the wind shield 203 is fixedly connected to the rotating rod 202, the rotating rod 202 is fixedly connected with a rotating rod 204, the movable plate 205 is hingedly connected to the rotating rod 204, and the two ends of the reset spring 206 are respectively hingedly connected to the flow control box 201 and the movable plate 205. The tension of the reset spring 206 makes the movable plate 205 5 drives the rotating rod 202 to reset and rotate; there are multiple groups of wind shields 203 and they are arranged in parallel, and the wind shields 203 are all arranged inside the flow control box 201. The movable plate 205 is fixedly connected with a fixed block 207, and the flow control box 201 is fixedly connected with a stopper 208. When the reset tension spring 206 pulls the movable plate 205 to move, the stopper 208 limits the movement of the movable plate 205 through the fixed block 207; one end of the wire drawing tube 311 away from the movable plate 310 is fixedly installed on the flow control box 201, and one end of the wire drawing wire 312 is fixedly connected to the movable plate 205.

[0037] In addition, a guide telescopic column 13 is provided between the support plate 4 and the isolation plate 5, and the guide telescopic column 13 guides the movement of the support plate 4. A dust bag 6 is provided between the support plate 4 and the air volume distribution structure 2, and the top of the dust bag 6 is fixedly connected to the support plate 4, and the bottom of the dust bag 6 is fixedly connected to the flow control box 201; a fixed seat 11 is fixedly connected to the inside of the dust collector shell 1, and a tensioning spring 12 is provided between the fixed seat 11 and the support plate 4. The elastic force of the tensioning spring 12 makes the support plate 4 tend to move upward, thereby keeping the dust bag 6 tensioned. A mechanical cleaning device is installed on the dust collector shell 1, and the dust bag 6 is knocked and cleaned regularly; an air outlet 10 is opened at the top of the dust collector shell 1, and a collecting bucket 7 is fixedly connected to the bottom of the dust collector shell 1, and an air inlet 9 is provided on the collecting bucket 7, and an ash collector 8 is fixedly connected to the bottom of the collecting bucket 7.

[0038] Specific use and working principle: when dust-laden gas is dedusted, the dust-laden gas is introduced into the collecting hopper 7 from the air inlet 9. Large dust particles first fall into the dust collector 8 under the action of gravity, and smaller dust particles enter the dust bag 6 after passing through the air volume distribution structure 2 with the air flow. After the dust particles are blocked on the inner surface of the dust bag 6, the clean gas passes through the dust bag 6 and enters the dust collector housing 1. Finally, the clean gas is discharged from the air outlet 10.

[0039] After the dust gas enters the collecting bucket 7, it always acts on a row of bag filters near the air inlet at the first time. As the dust removal process proceeds, dust accumulates faster in the dust bag 6 near the air inlet, and less dust accumulates in the bag filter on the side away from the air inlet. As the airflow passes through bags at different positions, the air pressure in bags at different positions is different. The air pressure in the bags pushes the movable piston 315 to move, thereby pushing the hydraulic oil in the movable piston 315 into the high-pressure chamber 305. At the same time, the air pressure in the dust collector housing 1 pushes the piston block 302 to move, thereby pushing the hydraulic oil in the low-pressure detection tube 301 into the low-pressure chamber 306. The hydraulic pressure on both sides of the pressure difference piston 307 pushes the pressure difference piston 307 to move, thereby pushing the push rod 309 and the movable plate 310 to move, thereby making the air pressure values ​​in different bags be compared with the air pressure at the top of the dust collector housing 1. Under the action of different pressure differences, the movable plate 310 is pushed to move, thereby pulling the wire drawing line 312.

[0040] The wire drawing wire 312 pulls the movable plate 205 to move, and the movable plate 205 drives the rotating rod 202 to rotate through the rotating rod 204, thereby changing the arrangement angle of the wind shield plate 203, and then changing the effective flow area in the flow control box 201, so that the effective flow area in the flow control box 201 is different under different pressure differences. When there is more dust in the bag, the pressure in the bag is relatively large, so the movable plate 310 moves a longer distance, the wire drawing wire 312 pulls the movable plate 205 to move a larger distance, the rotation angle of the wind shield plate 203 is relatively large, and the effective flow area in the flow control box 201 is relatively small, so that the air volume distribution structure 2 has an increased obstruction effect on the airflow, so that the airflow preferentially flows from the bag with less dust, thereby realizing the secondary distribution of the airflow, so that the bag filter element can evenly filter the dust-containing gas;

[0041] The above is the overall workflow of the present invention.

[0042] 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.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0044] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A high-efficiency bag dust collector, characterized by: The invention comprises a dust collector housing (1), an air volume distribution structure (2), a pressure difference feedback component (3), a support plate (4) and an isolation plate (5), wherein the isolation plate (5) is fixedly connected in the dust collector housing (1), the support plate (4) is slidably connected in the dust collector housing (1), the pressure difference feedback component (3) is arranged on the support plate (4), the air volume distribution structure (2) is arranged on the isolation plate (5), the pressure difference feedback component (3) comprises a wire drawing tube (311), and the air volume distribution structure (2) and the pressure difference feedback component (3) are connected via the wire drawing tube (311); The pressure difference feedback assembly (3) comprises a low pressure detection tube (301), a piston block (302), a pressure difference tube (303), a pressure difference piston (307), an isolation block (308), a push rod (309), a movable plate (310), a wire drawing tube (311), a bag pressure tube (313) and a movable piston (315); the low pressure detection tube (301) is fixedly connected to the support plate (4); the piston block (302) is slidably connected in the low pressure detection tube (301); the pressure difference tube (303) is fixedly installed on the support plate (4); a connecting tube (304) is provided between the pressure difference tube (303) and the low pressure detection tube (301); the pressure difference piston (307) is slidably connected in the pressure difference tube (303); the isolation block (30 8) is fixedly connected to the inside of the pressure differential tube (303), the push rod (309) is fixedly connected to the pressure differential piston (307), the push rod (309) is slidably connected to the isolation block (308), the movable plate (310) is fixedly connected to the push rod (309), one end of the wire drawing tube (311) is installed on the support plate (4), a wire drawing wire (312) is provided in the wire drawing tube (311), one end of the wire drawing wire (312) is fixedly connected to the movable plate (310), the bag pressure tube (313) is fixedly installed on the support plate (4), a hydraulic pipe (314) is provided between the bag pressure tube (313) and the pressure differential tube (303), and the movable piston (315) is slidably connected to the inside of the bag pressure tube (313); A limiting block (316) is fixedly connected to the low-pressure detection tube (301); a resistance spring (317) is provided inside the low-pressure detection tube (301); two ends of the resistance spring (317) are respectively fixedly connected to the piston block (302) and the low-pressure detection tube (301); a positioning block (318) is fixedly connected inside the bag pressure tube (313); a return spring (319) is provided inside the bag pressure tube (313); two ends of the return spring (319) are respectively fixedly connected to the moving piston (315) and the bag pressure tube (313); The pressure differential tube (303) is provided with a high-pressure chamber (305) and a low-pressure chamber (306) therein; the high-pressure chamber (305) and the low-pressure chamber (306) are provided on both sides of the pressure differential piston (307); the low-pressure chamber (306) is provided between the isolation block (308) and the pressure differential piston (307); the low-pressure detection tube (301) is connected to the low-pressure chamber (306) via a connecting tube (304); and the bag pressure tube (313) is connected to the high-pressure chamber (305) via a hydraulic tube (314); The air volume distribution structure (2) comprises a flow control box (201), a rotating rod (202), a wind shield (203), a movable plate (205) and a reset spring (206); the flow control box (201) is fixedly mounted on the isolation plate (5); the rotating rod (202) is rotatably connected to the flow control box (201); the wind shield (203) is fixedly connected to the rotating rod (202); a rotating rod (204) is fixedly connected to the rotating rod (202); the movable plate (205) is hingedly connected to the rotating rod (204); and the two ends of the reset spring (206) are respectively hingedly connected to the flow control box (201) and the movable plate (205).

2. A high-efficiency bag dust collector according to claim 1, characterized in that: The wind shields (203) are provided in multiple groups and are arranged in parallel. The wind shields (203) are all arranged inside the flow control box (201). A fixed block (207) is fixedly connected to the movable plate (205), and a stopper (208) is fixedly connected to the flow control box (201).

3. A high-efficiency bag dust collector according to claim 2, characterized in that: One end of the wire drawing tube (311) away from the movable plate (310) is fixedly mounted on the flow control box (201), and one end of the wire drawing wire (312) is fixedly connected to the movable plate (205).

4. A high-efficiency bag dust collector according to claim 3, characterized in that: A guide telescopic column (13) is provided between the support plate (4) and the isolation plate (5), a dust bag (6) is provided between the support plate (4) and the air volume distribution structure (2), the top of the dust bag (6) is fixedly connected to the support plate (4), and the bottom of the dust bag (6) is fixedly connected to the flow control box (201).

5. A high-efficiency bag dust collector according to claim 4, characterized in that: A fixing seat (11) is fixedly connected inside the dust collector housing (1), and a tensioning spring (12) is provided between the fixing seat (11) and the support plate (4).

6. A high-efficiency bag dust collector according to claim 5, characterized in that: The top of the dust collector housing (1) is provided with an air outlet (10), the bottom of the dust collector housing (1) is fixedly connected to a collecting bucket (7), the collecting bucket (7) is provided with an air inlet (9), and the bottom of the collecting bucket (7) is fixedly connected to an ash collector (8).

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