A composite dust cleaning device for a cloth bag dust collector and a use method thereof

Abstract

The application discloses a composite ash cleaning device for a cloth bag dust collector and a use method, and relates to the technical field of dust collectors. The device comprises a dust collector base body, a first-stage ash cleaning assembly and a second-stage ash cleaning assembly. The dust collector base body comprises a flower plate, a support arranged on the flower plate and a dust removal cloth bag arranged outside the support. The first-stage ash cleaning assembly comprises a supporting member arranged inside the support, a brush member arranged outside the support and a driving member arranged below the flower plate and providing power for the supporting member. The second-stage ash cleaning assembly comprises a carrier arranged on the flower plate, a winding pipe disc clamped on the carrier and corresponding to the support, a blowing pipe wound on the winding pipe disc, a high-pressure air pump arranged on the flower plate and connected with the blowing pipe and a winding and unwinding motor arranged inside the carrier and providing power for the winding pipe disc. The device has a reasonable structure design, can comprehensively clean the dust removal cloth bag, is favorable for improving the use reliability of the cloth bag dust collector and is suitable for popularization and use.

Description

Technical Field

[0001] This invention relates to the field of gas purification technology, specifically to a composite dust removal device and its usage method for a bag filter. Background Technology

[0002] A dust collector or dust removal equipment is a device that separates dust from flue gas. A baghouse dust collector, also known as a filter dust collector, is a dry, high-efficiency dust collector. It is a dust removal device that uses bag-type filter elements made of woven fiber fabric to capture solid particles in dusty gas. Its working principle is that dust particles are intercepted by colliding with the fibers due to inertial force as they wrap around the filter cloth fibers.

[0003] During the use of baghouse dust collectors, since most dust particles are on the order of micrometers in diameter, and because of their small mass, the dust particles will stick to the filter bags due to static electricity or molecular attraction, making the filter pores smaller and smaller, or even clogging them. Therefore, they need to be cleaned constantly, and this process is called "dust removal".

[0004] However, the existing dust removal methods include manual cleaning and automatic cleaning. Among them, automatic cleaning methods mainly include mechanical vibration, pulse back-blowing, and brushing. However, a single cleaning method is difficult to guarantee the dust removal effect of the filter bag and affects the working efficiency of the bag filter. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a composite dust removal device and its usage method for baghouse dust collectors.

[0006] The technical solution of the present invention is as follows: a composite dust removal device for a bag filter, comprising a dust collector base and a primary dust removal assembly and a secondary dust removal assembly disposed on the dust collector base; the dust collector base includes a tube sheet, several supports that penetrate the tube sheet and dust collector bags that are movably sleeved on the outside of each support; a positioning plate is provided on the bottom surface of the tube sheet through a tie rod, the positioning plate is located below each support, and the bottom of the support is closed;

[0007] The primary dust removal assembly includes support components installed inside each bracket, brush components installed outside each bracket, and a drive component installed below the tube sheet and providing power to the support components. The brush component includes a mounting plate installed between the positioning plate and the bracket, a guide slide rod installed on the mounting plate and connected to the bottom surface of the tube sheet, a moving ring sleeved on the outside of the bracket and slidably engaged with the guide slide rod, and a micro motor installed on the bottom surface of the tube sheet and providing power to the moving ring. A brush ring that abuts against the dust collector bag is provided on the inner side of the moving ring. A lead screw that is threadedly connected to the moving ring is provided on the output shaft of the micro motor.

[0008] The secondary dust removal assembly includes a carrier frame mounted on the upper surface of the tube sheet, several rotating pipe discs that are snapped onto the carrier frame and correspond one-to-one with each support, blowpipes wound around each pipe disc, a high-pressure air pump mounted on the upper surface of the tube sheet and connected to each blowpipe, and a take-up and discharge motor located inside the carrier frame and providing power to each pipe disc; the ends of each pipe disc pass through the carrier frame and are equipped with connecting pulleys; the output end of the take-up and discharge motor passes through the carrier frame and is equipped with a main pulley, and the main pulley and the connecting pulley are driven by a belt.

[0009] Furthermore, the support component includes a sleeve that passes through the inside of the bracket and is connected to the positioning plate at its bottom end, a movable rod that is slidably engaged inside the sleeve and passes through the positioning plate at its bottom end, and support arc plates that are disposed on both sides of the sleeve and connected to the movable rod; the inner wall of the support arc plates is respectively hinged to a first support bar that is hinged to the outer wall of the sleeve and a second support bar that is hinged to the outer wall of the movable rod, and the first support bar and the second support bar are arranged crosswise; the drive component includes a linkage plate disposed below the positioning plate and connected to each movable rod and a first electric rod disposed between the linkage plate and the positioning plate;

[0010] Instructions: When in use, the first electric lever pushes the linkage plate downward, which causes each movable rod to move downward inside the corresponding sleeve. This causes the first and second support bars to rotate along their hinge points with the sleeve and movable rods, pushing the support arc plate towards the dust collector bag to support it. This ensures that the dust collector bag and brush ring are completely in contact, thereby improving the dust removal effect of the brush ring.

[0011] Furthermore, each movable rod is equipped with a small gear at its bottom end, and a toothed plate that meshes with the small gear is slidably engaged on the bottom surface of the linkage plate. A second electric rod that connects to the toothed plate is also provided on the bottom surface of the linkage plate. The top end of the sleeve is rotatably engaged with the bracket, and the bottom end is rotatably engaged with the positioning plate.

[0012] Explanation: The second electric lever is used to push the toothed plate to move along the bottom surface of the linkage plate, so that each small gear drives the movable rod and the sleeve to rotate simultaneously. This facilitates the adjustment of the support position of the support arc plate, avoids setting multiple support arc plates inside the bracket and occupying the internal space of the dust collector bag, and ensures the use effect of the dust collector bag.

[0013] Furthermore, a guide tube is provided on the underside of the carrier frame and fitted onto the outside of each blow pipe;

[0014] Note: The guide tube helps improve the accuracy of the blowpipe entering the support, thus improving the reliability of the device.

[0015] Furthermore, each support is equipped with a vertical pole, and each vertical pole is slidably engaged with a counterweight seat that is connected to the end of the blowpipe at the corresponding position;

[0016] Note: Using a counterweight to move the blowpipe downwards along the column can prevent the blowpipe from detaching from the support under the action of high-pressure airflow.

[0017] Furthermore, a vibration seat is slidably connected to the inner side of the tube sheet via a stabilizing rod, and the support is on the vibration seat; exciters are provided on the left side and front end of the upper surface of the tube sheet, and excitation rods connected to the vibration seat are provided at the output ends of the two exciters; follower seats connected to each sleeve are provided on the inner side of the positioning plate.

[0018] Explanation: The vibrating rod on the vibrator drives the vibrating seat to vibrate back and forth and left and right on the stabilizing rod, thereby vibrating and cleaning the dust collector bag and improving the dust collection efficiency.

[0019] Furthermore, the stabilizer bar is movably equipped with a roller that slides and engages with the perforated plate;

[0020] Note: By installing rollers on the stabilizer bar, the stability of the vibratory seat when moving on the tube sheet is improved.

[0021] Furthermore, there are two sets of the first support bar and the second support bar, and the two sets of the first support bar and the second support bar are respectively set at the upper and lower ends of the inner side of the support arc plate;

[0022] Note: By setting two sets of first and second support bars on the inner side of the support arc plate, the support effect of the support arc plate on the dust collector bag is improved.

[0023] Furthermore, the method of using the dust removal device includes the following steps:

[0024] S1. Install the device of the present invention inside the outer shell of the bag filter, and make a sealed connection between the tube sheet and the inner wall of the outer shell of the bag filter.

[0025] S2. The driving component is used to move the supporting component to support the inner wall of the dust collector bag; then the micro motor is used to drive the lead screw to rotate, so that the moving ring moves up and down along the guide slide under the action of the lead screw, and the brush ring on the inner side of the moving ring is used to clean the dust on the outside of the dust collector bag.

[0026] S3. The main pulley is driven to rotate by the generator, which in turn drives the corresponding winding disc to rotate under the action of the transmission belt, and the blowpipe is extended into the dust collector bag. Finally, high-pressure air is introduced into each blowpipe by a high-pressure air pump to clean the dust collector bag by high-pressure blowing.

[0027] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects:

[0028] First, the dust removal device of the present invention has a reasonable structural design and can perform a composite dust removal treatment of brushing, gas blowing and mechanical vibration on the dust collector bag, which greatly improves the dust removal effect of the dust collector bag, thereby improving the working efficiency of the bag dust collector, and also promotes environmental protection.

[0029] Secondly, in the process of brushing the dust on the surface of the dust collector bag using the brush component, the present invention uses the support component to support the dust collector bag, so that the brush ring is completely in contact with the outer surface of the dust collector bag, avoiding the brush ring being unable to contact the dust collector bag when the dust collector bag is in a loose state, thus improving the dust removal effect of the brush ring.

[0030] Third, the dust removal device of the present invention has a compact structure and will not affect the internal working space of the bag filter, thereby improving the reliability of the dust removal effect while ensuring the working stability of the bag filter. Attached Figure Description

[0031] Figure 1 This is a longitudinal sectional view of the device of the present invention;

[0032] Figure 2 This is a front view of the device of the present invention;

[0033] Figure 3 This is a top view of the device of the present invention;

[0034] Figure 4 This is a structural schematic diagram of the support member of the present invention;

[0035] Figure 5 This is a schematic diagram of the connection between the support member and the bracket of the present invention;

[0036] Figure 6 This is a schematic diagram of the connection between the toothed plate and the pinion of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the brush component of the present invention;

[0038] Figure 8 This is a diagram showing the positional relationship between the sleeve and the upright in the bracket according to the present invention;

[0039] Figure 9 This is a schematic diagram of the connection between the vibration seat and the perforated plate of the present invention;

[0040] Among them, 1-dust collector base, 10-tube sheet, 11-support, 12-dust collector bag, 13-tie rod, 14-positioning plate, 15-stabilizing rod, 150-roller, 2-first-stage cleaning assembly, 20-support component, 200-sleeve, 201-movable rod, 202-support arc plate, 203-first support bar, 204-second support bar, 205-pinion, 206-tooth plate, 21-brush component, 210-mounting plate, 211-guide slide bar, 212-moving ring, 21 20-Brush ring, 213-Micro motor, 214-Screw, 22-Drive component, 220-Linkage plate, 221-First electric rod, 222-Second electric rod, 3-Secondary dust removal assembly, 30-Carrier frame, 300-Guide tube, 31-Wrapping disc, 310-Connecting pulley, 32-Pulse jet pipe, 33-High-pressure air pump, 34-Electric receiver, 340-Main pulley, 35-Upright pole, 350-Counterweight seat, 4-Vibrator, 40-Vibration seat, 41-Vibration rod, 42-Follower seat. Detailed Implementation

[0041] Example 1

[0042] like Figure 1 The composite dust removal device for a bag filter dust collector shown includes a dust collector base 1 and a primary dust removal assembly 2 and a secondary dust removal assembly 3 disposed on the dust collector base 1. The dust collector base 1 includes a tube sheet 10, three supports 11 that pass through the tube sheet 10, and dust collector bags 12 that are movably sleeved on the outside of each support 11. A positioning plate 14 is provided on the bottom surface of the tube sheet 10 through a tie rod 13. The positioning plate 14 is located below each support 11, and the bottom of the support 11 is closed.

[0043] like Figure 1 , 2 As shown in Figure 7, the primary dust removal assembly 2 includes a support member 20 disposed inside each bracket 11, a brush member 21 disposed outside each bracket 11, and a drive member 22 disposed below the tube sheet 10 and providing power to the support member 20. The brush member 21 includes a mounting plate 210 disposed between the positioning plate 14 and the bracket 11, a guide slide rod 211 disposed on the mounting plate 210 and connected to the bottom surface of the tube sheet 10, a moving ring 212 sleeved outside the bracket 11 and slidably engaged with the guide slide rod 211, and a micro motor 213 disposed on the bottom surface of the tube sheet 10 and providing power to the moving ring 212. A brush ring 2120 abutting against the dust collector bag 12 is disposed inside the moving ring 212. A lead screw 214 threadedly connected to the moving ring 212 is disposed on the output shaft of the micro motor 213. The support member 20 and the drive member 22 are commercially available products.

[0044] like Figure 1 , 2As shown in Figure 3, the secondary dust removal assembly 3 includes a carrier frame 30 disposed on the upper end face of the tube sheet 10, three rotatably clamped to the carrier frame 30 and corresponding one-to-one with each bracket 11, a blowpipe 32 wound on each of the tube sheets 31, a high-pressure air pump 33 disposed on the upper end face of the tube sheet 10 and connected to each of the blowpipes 32, and a receiver / discharge motor 34 disposed inside the carrier frame 30 and providing power to each of the tube sheets 31; the ends of each tube sheet 31 penetrate the carrier frame 30 and are provided with connecting pulleys 310; the output end of the receiver / discharge motor 34 penetrates the carrier frame 30 and is provided with a main pulley 340, and the main pulley 340 and the connecting pulley 310 are driven by a belt.

[0045] Example 2

[0046] This embodiment describes the method of using the dust removal device of Embodiment 1, including the following steps:

[0047] S1. Install the device of the present invention inside the outer shell of the bag filter, and make a sealed connection between the tube sheet 10 and the inner wall of the outer shell of the bag filter.

[0048] S2. The driving component 22 drives the support component 20 to move, supporting the inner wall of the dust collector bag 12; then the micro motor 213 drives the lead screw 214 to rotate, so that the moving ring 212 moves up and down along the guide slide bar 211 under the action of the lead screw 214, and the brush ring 2120 on the inner side of the moving ring 212 cleans the dust on the outside of the dust collector bag 12.

[0049] S3. The main pulley 340 is driven to rotate by the receiver-discharge motor 34, which in turn drives the corresponding winding disc 31 to rotate under the action of the transmission belt, and the blow pipe 32 is extended into the dust collector bag 12. Finally, high-pressure air is introduced into each blow pipe 32 by the high-pressure air pump 33 to clean the dust collector bag 12 by high-pressure blow.

[0050] Example 3

[0051] The difference between this embodiment and Embodiment 1 is that:

[0052] like Figure 4 , 5As shown in Figure 6, the support component 20 includes a sleeve 200 that passes through the inside of the bracket 11 and is connected to the positioning plate 14 at its bottom end; a movable rod 201 that is slidably engaged inside the sleeve 200 and passes through the positioning plate 14 at its bottom end; and support arc plates 202 that are disposed on both sides of the sleeve 200 and connected to the movable rod 201. The inner wall of the support arc plates 202 is respectively hinged to a first support bar 203 that is hinged to the outer wall of the sleeve 200 and a second support bar 204 that is hinged to the outer wall of the movable rod 201. The first support bar 203 and the second support bar 204 are arranged intersectingly. The driving component 22 includes a drive component disposed below the positioning plate 14 and connected to each movable rod 201. 01 is connected to the linkage plate 220 and the first electric rod 221 is set between the linkage plate 220 and the positioning plate 14; each movable rod 201 is provided with a small gear 205 at its bottom end; the bottom surface of the linkage plate 220 is slidably engaged with a toothed plate 206 that meshes with the small gear 205; the bottom surface of the linkage plate 220 is provided with a second electric rod 222 that connects to the toothed plate 206; the top end of the sleeve 200 is rotatably engaged with the bracket 11, and the bottom end is rotatably engaged with the positioning plate 14; two sets of first support bars 203 and second support bars 204 are provided, and the two sets of first support bars 203 and second support bars 204 are respectively set at the upper and lower ends of the inner side of the support arc plate 202.

[0053] Example 4

[0054] This embodiment describes the method of using the dust removal device of Embodiment 3, which differs from Embodiment 2 in that:

[0055] In step S2, the first electric rod 221 pushes the linkage plate 220 downward, causing each movable rod 201 to move downward inside the corresponding sleeve 200. This causes the first support bar 203 and the second support bar 204 to rotate along their hinge points with the sleeve 200 and the movable rod 201, pushing the support arc plate 202 towards the dust collector bag 12 to support it. The second electric rod 222 pushes the toothed plate 206 to move along the bottom surface of the linkage plate 220, causing each small gear 205 to drive the movable rod 201 and the sleeve 200 to rotate simultaneously, adjusting the support position of the support arc plate 202.

[0056] Example 5

[0057] The difference between this implementation and Example 3 is that:

[0058] like Figure 2 , 8 As shown, the bottom surface of the carrier 30 is provided with a guide tube 300 sleeved on the outside of each blow pipe 32; each support 11 is provided with a vertical rod 35, and each vertical rod 35 is slidably engaged with a counterweight seat 350 connected to the end of the blow pipe 32 at the corresponding position.

[0059] Example 6

[0060] This embodiment describes the method of using the dust removal device of Embodiment 5, which differs from Embodiment 4 in that:

[0061] In step S3, before the blow pipe 32 extends into the dust collector bag 12, it first passes through the guide pipe 300; then, under the action of the counterweight 350, it moves downward along the column 35 into the interior of the dust collector bag 12.

[0062] Example 7

[0063] The difference between this embodiment and embodiment 5 is that:

[0064] like Figure 3 , 6 As shown in Figure 9, a vibration seat 40 is slidably engaged with the inner side of the tube sheet 10 via a stabilizing rod 15, and a bracket 11 is mounted on the vibration seat 40. Exciters 4 are provided on the left side and front end of the upper surface of the tube sheet 10, and excitation rods 41 connected to the vibration seat 40 are provided at the output ends of the two exciters 4. Follower seats 42 connected to each sleeve 200 are provided on the inner side of the positioning plate 14. A roller 150 movably engaged with the tube sheet 10 is mounted on the stabilizing rod 15.

[0065] Example 8

[0066] This embodiment describes the method of using the dust removal device of Embodiment 7. The difference from Embodiment 6 is that it also includes step S4.

[0067] S4. The vibrating seat 40 is driven to vibrate back and forth and left and right on the stabilizing rod 15 by the vibrating rod 41 on the vibrator 4 to vibrate and clean the dust collector bag 12. During the vibration of the vibrating seat 40, the roller 150 rotates or slides on the stabilizing rod 15.

[0068] It should be noted that the micro motor 213, the first electric rod 221, the second electric push rod 222, the high-pressure air pump 33, the receiver / discharger 34, and the vibrator 4 used in this invention all adopt existing technologies and are not specifically limited here. Appropriate products can be selected according to actual needs.

Claims

1. A composite dust removal device for a bag filter, characterized in that, It includes a dust collector base (1) and a primary dust removal assembly (2) and a secondary dust removal assembly (3) disposed on the dust collector base (1); the dust collector base (1) includes a tube sheet (10), several supports (11) that pass through the tube sheet (10) and dust collector bags (12) that are movably sleeved on the outside of each of the supports (11); a positioning plate (14) is provided on the bottom surface of the tube sheet (10) through a tie rod (13), the positioning plate (14) is located below each support (11), and the bottom of the support (11) is closed; The primary dust removal assembly (2) includes a support member (20) disposed inside each bracket (11), a brush member (21) disposed outside each bracket (11), and a drive member (22) disposed below the tube sheet (10) and providing power to the support member (20); the brush member (21) includes a mounting plate (210) disposed between the positioning plate (14) and the bracket (11), and a component disposed on the mounting plate (210) and connected to the bottom surface of the tube sheet (10). The device includes a guide slide rod (211), a movable ring (212) sleeved on the outside of the bracket (11) and slidably engaged with the guide slide rod (211), and a micro motor (213) provided on the bottom surface of the tube sheet (10) and providing power to the movable ring (212); a brush ring (2120) is provided on the inner side of the movable ring (212) to abut against the dust collector bag (12); and a lead screw (214) threadedly connected to the movable ring (212) is provided on the output shaft of the micro motor (213). The secondary dust removal assembly (3) includes a carrier frame (30) set on the upper end face of the tube sheet (10), several rotatable tube coils (31) that are rotatably clamped on the carrier frame (30) and correspond one-to-one with each support (11), blow pipes (32) wound on each of the tube coils (31), a high-pressure air pump (33) set on the upper end face of the tube sheet (10) and connected to each blow pipe (32), and a collector and discharge motor (34) set inside the carrier frame (30) and providing power to each tube coil (31); the ends of each tube coil (31) penetrate the carrier frame (30) and are provided with connecting pulleys (310); the output end of the collector and discharge motor (34) penetrates the carrier frame (30) and is provided with a main pulley (340), and the main pulley (340) and the connecting pulley (310) are driven by a belt; The support member (20) includes a sleeve (200) that passes through the inside of the bracket (11) and is connected to the positioning plate (14) at its bottom end; a movable rod (201) that is slidably engaged inside the sleeve (200) and passes through the positioning plate (14) at its bottom end; and a support arc plate (202) that is disposed on both sides of the sleeve (200) and connected to the movable rod (201). The inner wall of the support arc plate (202) is respectively hinged to a first support bar (203) that is hinged to the outer wall of the sleeve (200) and a second support bar (204) that is hinged to the outer wall of the movable rod (201). The first support bar (203) and the second support bar (204) are arranged crosswise. The drive member (22) includes a linkage plate (220) that is disposed below the positioning plate (14) and connected to each movable rod (201) and a first electric rod (221) that is disposed between the linkage plate (220) and the positioning plate (14). Each of the movable rods (201) is provided with a small gear (205) at its bottom end. The bottom surface of the linkage plate (220) is slidably engaged with a toothed plate (206) that meshes with the small gear (205). The bottom surface of the linkage plate (220) is provided with a second electric rod (222) that is connected to the toothed plate (206). The top end of the sleeve (200) is rotatably engaged with the bracket (11), and the bottom end is rotatably engaged with the positioning plate (14).

2. The composite dust removal device for a bag filter according to claim 1, characterized in that, The bottom surface of the carrier (30) is provided with guide tubes (300) sleeved on the outside of each blow pipe (32).

3. The composite dust removal device for a bag filter according to claim 2, characterized in that, Each of the brackets (11) is provided with a vertical rod (35), and each vertical rod (35) is slidably engaged with a counterweight (350) connected to the end of the blow pipe (32) at the corresponding position.

4. The composite dust removal device for a bag filter according to claim 1, characterized in that, The inner side of the tube sheet (10) is slidably connected to the vibration seat (40) via the stabilizing rod (15), and the bracket (11) is on the vibration seat (40); the upper left side and the front end of the tube sheet (10) are provided with exciters (4), and the output ends of the two exciters (4) are provided with excitation rods (41) connected to the vibration seat (40); the inner side of the positioning plate (14) is provided with follower seats (42) connected to each sleeve (200).

5. A composite dust removal device for a bag filter according to claim 4, characterized in that, The stabilizer bar (15) is movably provided with a roller (150) that slides and engages with the flower plate (10).

6. The composite dust removal device for a bag filter according to claim 1, characterized in that, The first support bar (203) and the second support bar (204) are provided in two sets, and the two sets of the first support bar (203) and the second support bar (204) are respectively provided at the upper and lower ends of the inner side of the support arc plate (202).

7. A composite dust removal device for a bag filter according to any one of claims 1-6, characterized in that, The method of using the dust removal device includes the following steps: S1. Sealed connection between the inner wall of the dust collector outer shell; S2. The driving component (22) drives the support component (20) to move, supporting the inner wall of the dust collector bag (12); then the micro motor (213) drives the lead screw (214) to rotate, so that the moving ring (212) moves up and down along the guide slide rod (211) under the action of the lead screw (214), and the brush ring (2120) on the inner side of the moving ring (212) cleans the dust on the outside of the dust collector bag (12); S3. Using the receiver and discharger (34) to drive the main pulley (340) to rotate, so that each connecting pulley (310) drives the corresponding winding disc (31) to rotate under the action of the transmission belt, and the blow pipe (32) extends into the dust collector bag (12). Finally, the high-pressure air pump (33) introduces high-pressure air into each blow pipe (32) to clean the dust collector bag (12) by high-pressure blow.

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