Bag-type dust collector

Abstract

The utility model belongs to the technical field of dust treatment equipment, and particularly relates to a bag-type dust collector which comprises a rack, a box body is arranged at the top of the rack, a partition plate is arranged in the box body and divides the box body into a filtering chamber and a cleaning chamber, an ash bucket is arranged at the bottom of the filtering chamber, an air inlet pipe is arranged on the ash bucket, and an air outlet pipe is arranged on the cleaning chamber. A caisson is arranged at the bottom of the dust hopper; a filtering assembly is mounted in the filtering chamber; the cage frame comprises a supporting frame suspended on the mounting hole, a sleeve is fixedly connected to the middle of the supporting frame, a pull rod is slidably connected to the interior of the sleeve, a cap is detachably connected to the bottom end of the pull rod, a supporting ring used for supporting the filter bag is arranged at the end, close to the cap, of the pull rod, and a pull rope is arranged at the top of the pull rod; a rotating shaft is arranged in the cleaning chamber, the end of the pull rope is fixed to the rotating shaft, a driver used for controlling the rotating shaft to rotate is arranged outside the box body, and the problem that an existing bag-type dust collector is too complex in structure is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust processing equipment, and in particular relates to a bag dust collector. Background Art

[0002] Exhaust gas dust removal equipment is used to treat waste gas generated during industrial production and remove pollutants such as dust and particulate matter. Existing waste gas dust removal equipment includes wet electric dust collector, bag dust collector, cyclone dust collector and electrostatic dust collector. Bag dust collector is a highly efficient dry dust filter device, which is suitable for capturing fine, dry, non-fibrous dust. Its working principle is mainly to filter dust-containing gas by the filtering effect of fiber fabric. When the dust-containing gas enters the dust collector, the dust with large particles and high specific gravity settles down due to gravity and falls into the ash hopper; while the gas containing finer dust is retained when passing through the filter material, so that the gas is purified.

[0003] According to the cleaning type, the existing bag dust collectors are divided into mechanical vibration type, chamber backblowing type, vibration backblowing and combination type, nozzle backblowing type, pulse nozzle type and other types. These bag dust collectors can clean the filter bags, but the structure is too complicated and the purchase cost is relatively high. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a bag dust collector to solve the problem that the existing bag dust collector has an overly complex structure.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A bag dust collector comprises a frame, a box body is provided on the top of the frame, a partition is provided inside the box body, the partition divides the box body into a filter chamber and a clean chamber, an ash hopper is provided at the bottom of the filter chamber, an air inlet pipe is provided on the ash hopper, an air outlet pipe is provided on the clean chamber, a collecting box is provided at the bottom of the ash hopper, a mounting hole for connecting the filter chamber and the clean chamber is provided on the partition, a filter assembly is installed in the filter chamber; the filter assembly comprises a cage frame, a filter bag is provided on the outer cover of the cage frame, the cage frame comprises a support frame suspended on the mounting hole, a sleeve is fixedly connected to the middle part of the support frame, a pull rod is slidably connected in the sleeve, a cap for fixing the bottom of the filter bag to the end of the pull rod is detachably connected to the bottom end of the pull rod, a support ring for supporting the filter bag is provided at the end of the pull rod close to the cap, a pull rope is provided on the top of the pull rod, a rotating shaft is provided in the clean chamber, the end of the pull rope is fixed on the rotating shaft, and a driver for controlling the rotation of the rotating shaft is provided on the outside of the box body.

[0007] On the basis of the above technical solution, the present invention also makes the following improvements:

[0008] Furthermore, a through hole for the pull rod to pass through is provided at the bottom of the sleeve, and a rubber gasket is provided at the top of the through hole, which has a buffering effect and reduces noise.

[0009] Furthermore, the sum of the lengths of the tie rod and the sleeve is smaller than the length of the filter bag, so as to prevent the tie rod from breaking the filter bag.

[0010] Furthermore, a weight block for acceleration is provided on the pull rod. The acceleration pull rod slides downward.

[0011] Furthermore, an L-shaped buffer plate is provided in the ash hopper, and the L-shaped buffer plate is located above the air inlet pipe to prevent the exhaust gas from directly colliding with the filter assembly.

[0012] The beneficial effects of the utility model: the device has a simple structure and can achieve a dust cleaning effect by retracting and pulling. The reel is wound up by controlling the rotation of the rotating shaft to pull the pull rod upward, driving the bottom of the filter bag to move upward, and then the rotating shaft is controlled to reverse rapidly. Driven by the pull rod, the filter bag can be in an expanded state again. In the process of rapid descent and reopening of the filter bag, the dust accumulated on the filter bag can be shaken off, thereby achieving a dust cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the dust removal device in the embodiment of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of a dust removal device in an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the box in the embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the filter assembly in the embodiment of the utility model;

[0018] Figure 5 It is a structural schematic diagram of a cage frame in an embodiment of the utility model;

[0019] Figure 6 yes Figure 3 A local enlarged schematic diagram of the middle A;

[0020] Figure 7 yes Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0021] Among them, 1-frame, 2-box, 21-filter chamber, 22-cleaning chamber, 23-exhaust pipe, 24-rotating shaft, 3-partition, 4-ash hopper, 41-inlet pipe, 5-filter assembly, 51-cage, 511-support frame, 512-sleeve, 513-pull rod, 514-cap, 515-support ring, 516-pull rope, 517-rubber gasket, 518-weight block, 52-filter bag, 6-driver, 7-L-type buffer plate. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] like Figures 1 to 7 Shown

[0024] A bag dust collector comprises a frame 1, a box body 2 is arranged on the top of the frame 1, a partition 3 is arranged inside the box body 2, the partition 3 divides the box body 2 into a filter chamber 21 and a clean chamber 22, the filter chamber 21 is located at the bottom of the clean chamber 22, an ash hopper 4 is arranged at the bottom of the filter chamber 21, an air inlet pipe 41 is arranged on the ash hopper 4, an air outlet pipe 23 is arranged on the clean chamber 22, a collecting box is arranged at the bottom of the ash hopper 4, a mounting hole for connecting the filter chamber 21 and the clean chamber 22 is arranged on the partition 3, a filter assembly 5 is installed in the filter chamber 21, and the filter assembly 5 corresponds to the mounting hole, exhaust gas enters the filter chamber 21 from the air inlet pipe 41, enters the clean chamber 22 after being filtered by the filter assembly 5, and is then discharged through the exhaust pipe, and dust in the exhaust gas automatically falls into the ash hopper 4 under the action of gravity, and is finally collected in the collecting box;

[0025] The filter assembly 5 includes a cage frame 51 installed on the partition 3, and the cage frame 51 is covered with a filter bag 52. The cage frame 51 includes a support frame 511 suspended on the mounting hole, a sleeve 512 is fixedly connected to the middle of the support frame 511, a pull rod 513 is slidably connected in the sleeve 512, and a cap 514 for fixing the bottom of the filter bag 52 to the end of the pull rod 513 is detachably connected to the bottom of the pull rod 513. A support ring 515 for supporting the filter bag 52 is provided at one end of the pull rod 513 close to the cap 514. With the support of the support ring 515, the filter bag 52 can be unfolded. A pull rope 516 is provided on the top of the pull rod 513. A rotating shaft 24 is provided in the cleaning chamber 22. The end of the pull rope 516 is fixed on the rotating shaft 24. A driver 6 for controlling the rotation of the rotating shaft 24 is provided on the outside of the box body 2.

[0026] By controlling the rotation of the rotating shaft 24, the pull rope 516 can be rolled up, so that the pull rod 513 can be pulled upward, and the bottom of the filter bag 52 can be driven to move upward, and then the rotating shaft 24 is controlled to be reversed quickly, and the filter bag 52 can be re-expanded under the drive of the pull rod 513. In the process of the filter bag 52 being quickly lowered and re-expanded, the dust accumulated on the filter bag 52 can be shaken off, so that the dust cleaning effect can be achieved.

[0027] Specifically, a through hole for the pull rod 513 to pass through is provided at the bottom of the sleeve 512 , and a rubber gasket 517 is provided at the top of the through hole. The rubber gasket 517 can play a buffering effect and reduce the collision sound between the pull rod 513 and the sleeve 512 .

[0028] Specifically, the sum of the lengths of the pull rod 513 and the sleeve 512 is smaller than the length of the filter bag 52 , thereby preventing the pull rod 513 from breaking through the filter bag 52 .

[0029] Specifically, a weight block 518 is provided on the pull rod 513. Under the action of the weight block 518, the pull rod 513 can be quickly lowered, so that the filter bag 52 can be quickly unfolded, thereby improving the cleaning effect.

[0030] Specifically, an L-shaped buffer plate is provided in the ash hopper 4 , and the L-shaped buffer plate is located above the air inlet pipe 41 . The L-shaped buffer plate can play a buffering effect, thereby preventing the exhaust gas from directly rushing to the filter assembly 5 , and reducing the damage of the exhaust gas to the filter assembly 5 .

[0031] The method of using the utility model is as follows: the exhaust gas enters the filter chamber 21 from the air inlet pipe 41, enters the cleaning chamber 22 after being filtered by the filter assembly 5, and is then discharged through the exhaust pipe. The dust in the exhaust gas automatically falls into the ash hopper 4 under the action of gravity, and is finally collected in the collecting caisson;

[0032] The control shaft 24 is controlled to rotate the reel-in rope 516, and the pull rod 513 is pulled upward, driving the bottom of the filter bag 52 to move upward, and then the control shaft 24 is quickly reversed. Driven by the pull rod 513, the filter bag 52 can be in the expanded state again. In the process of rapid descent and expansion, the dust accumulated on the filter bag 52 can be shaken off, thereby achieving a cleaning effect.

[0033] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A bag filter, comprising a frame (1), characterized in that: A box body (2) is provided on the top of the frame (1), a partition (3) is provided inside the box body (2), the partition (3) divides the box body (2) into a filter chamber (21) and a cleaning chamber (22), an ash hopper (4) is provided at the bottom of the filter chamber (21), an air inlet pipe (41) is provided on the ash hopper (4), an air outlet pipe (23) is provided on the cleaning chamber (22), a collecting box is provided at the bottom of the ash hopper (4), a mounting hole for connecting the filter chamber (21) and the cleaning chamber (22) is provided on the partition (3), and a filter assembly (5) is installed in the filter chamber (21); The filter assembly (5) comprises a cage (51), the cage (51) being covered with a filter bag (52), the cage (51) comprising a support frame (511) suspended on a mounting hole, a sleeve (512) being fixedly connected to the middle of the support frame (511), a pull rod (513) being slidably connected in the sleeve (512), and a bottom end of the pull rod (513) being detachably connected to a member for fixing the bottom of the filter bag (52) to the end of the pull rod (513). A cover cap (514) is provided on the top of the pull rod (513), a support ring (515) for supporting the filter bag (52) is provided at one end of the pull rod (513) close to the cover cap (514), a pull rope (516) is provided on the top of the pull rod (513), a rotating shaft (24) is provided in the cleaning chamber (22), an end of the pull rope (516) is fixed on the rotating shaft (24), and a driver (6) for controlling the rotation of the rotating shaft (24) is provided on the outside of the box body (2).

2. A bag dust collector according to claim 1, characterized in that: A through hole for the pull rod (513) to pass through is provided at the bottom of the sleeve (512), and a rubber gasket (517) is provided at the top of the through hole.

3. A bag dust collector according to claim 1, characterized in that: The sum of the lengths of the pull rod (513) and the sleeve (512) is smaller than the length of the filter bag (52).

4. A bag dust collector according to claim 1, characterized in that: The pull rod (513) is provided with a weight (518) for acceleration.

5. A bag dust collector according to claim 1, characterized in that: An L-shaped buffer plate (7) is provided in the ash hopper (4), and the L-shaped buffer plate (7) is located above the air inlet pipe (41).

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