Ash filtering device of bag-type dust collector

Abstract

The utility model provides an ash filtering device of a bag-type dust collector, which belongs to the field of bag-type dust collectors and comprises a box, a plurality of cloth bags are mounted at the bottom of a conveying box, a dust discharging box is mounted at the bottoms of the cloth bags, and a box cover is mounted at the upper end of the conveying box; a cloth bag dust removal assembly; the cloth bag dust removal assembly comprises a plurality of L-shaped pipes which penetrate through the box cover, are rotationally connected with the box cover and can synchronously rotate, spiral pipes which extend into the cloth bags and abut against the cloth bags are fixed to the L-shaped pipes, and a plurality of dust removal holes are formed in the side walls, abutting against the cloth bags, of the spiral pipes in a penetrating mode; and a fan for conveying air into the plurality of spiral pipes for dust removal is mounted on the box cover. The spiral pipe abuts against the inner wall of the cloth bag, so that the cloth bag shakes, dust on the inner wall of the cloth bag can be effectively removed in cooperation with air blown out of the dust removal holes, the effect is better, the dust removal device can be suitable for cloth bags of various models, and the spiral pipe does not affect the dust filtering effect of the cloth bag.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, in particular to a dust filtering device of bag dust collectors. Background Art

[0002] A bag dust collector is a dry dust filtering device, which is mainly used to capture fine, dry, non-fibrous dust. The dust bags used inside the bag dust collector are made of textile filter cloth or non-textile felt, and the dust-containing gas is filtered by the filtering function of the fiber fabric.

[0003] After the dust bag inside the bag collector has been used for a period of time, a large amount of dust will adhere to the surface, which will affect the dust removal effect of the bag collector. Therefore, the dust bag needs to be filtered out regularly. The existing method usually adopts a pulse dust removal method when filtering the dust bag. The existing pulse equipment is usually directly installed inside the bag collector. The pulse equipment injects compressed air into the dust bag through a venturi tube, thereby removing the dust attached to the surface of the dust bag. This method is simple to operate and has a high degree of automation, and does not require a lot of labor.

[0004] However, in the above method, the length of the dust bag is relatively long, and the air generated by the pulse is prone to lack of energy after flowing to the lower end of the dust bag, resulting in the inability to completely remove the dust on the dust bag, thereby reducing the dust filtering effect of the dust bag; for this reason, the present application proposes a dust filtering device for a bag dust collector. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a dust filtering device for a bag dust collector.

[0006] The embodiment of the utility model provides a dust filtering device for a bag dust collector, comprising:

[0007] A conveying box, wherein a plurality of cloth bags are installed at the bottom of the conveying box, a dust exhaust box is installed at the bottom of the cloth bags, and a box cover is installed at the upper end of the conveying box;

[0008] Bag-type dust removal assembly; the bag-type dust removal assembly includes a plurality of L-shaped tubes that pass through a box cover and are rotatably connected thereto so as to be able to rotate synchronously, a spiral tube that extends into the bag and abuts against the bag is fixed on the L-shaped tube, a plurality of dust removal holes are penetrated through the side wall of the spiral tube abutting against the bag, and a fan that delivers air into the plurality of spiral tubes for dust removal is installed on the box cover.

[0009] Furthermore, an air inlet pipe is installed on the conveying box, and the air inlet pipe is arranged on one side of the conveying box.

[0010] Furthermore, four support rods are fixed to the bottom of the conveying box, and the support rods are fixedly connected to the dust exhaust box.

[0011] Furthermore, an air outlet pipe is installed at the air outlet end of the fan, a plurality of L-shaped tubes are installed at their upper ends with rotary joints, a strip-shaped box is installed on the air outlet pipe, and the plurality of rotary joints are connected to the strip-shaped box via short tubes.

[0012] Furthermore, a support plate is installed on the box cover, a motor is installed on the support plate, a transmission box is fixed on the box cover, a worm is provided in the transmission box, a worm wheel meshing with the worm is provided on the L-shaped tube, a plurality of worms are connected by a shaft, and the shaft is connected to the output end of the motor.

[0013] Furthermore, a through slot is penetrated through the transmission box, and the L-shaped tube penetrates through the through slot and is rotatably connected thereto.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The spiral tube of the utility model abuts against the inner wall of the bag, so that the bag shakes, and the air blown out from the dust removal hole can effectively remove the dust on the inner wall of the bag, with better effect. The utility model can be applicable to various types of bags, and the spiral tube does not affect the dust filtering effect of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a dust filtering device of a bag dust collector described in an embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of multiple spiral tubes in a dust filtering device of a bag dust collector described in an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of a spiral tube in a dust filtering device of a bag dust collector described in an embodiment of the utility model.

[0019] In the above drawings: 1 conveying box, 2 cloth bags, 3 support rods, 4 dust exhaust box, 5 air inlet pipe, 6 motor, 7 strip box, 8 transmission box, 9 rotary joint, 10 support plate, 11 box cover, 12 fan, 13 air outlet pipe, 14 L-shaped pipe, 15 spiral pipe. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 3 As shown, the embodiment of the utility model proposes a dust filtering device for a bag dust collector, comprising:

[0022] A conveying box 1 is provided with an air inlet pipe 5, which is arranged on one side of the conveying box 1. A plurality of cloth bags 2 are installed at the bottom of the conveying box 1, a dust exhaust box 4 is installed at the bottom of the cloth bags 2, four support rods 3 are fixed to the bottom of the conveying box 1, the support rods 3 are fixedly connected to the dust exhaust box 4, and a box cover 11 is installed at the upper end of the conveying box 1. The above are all prior arts;

[0023] Bag dust removal assembly; the bag dust removal assembly includes a plurality of L-shaped tubes 14 that penetrate the box cover 11 and are rotatably connected thereto and can rotate synchronously, a support plate 10 is mounted on the box cover 11, a motor 6 is mounted on the support plate 10, a transmission box 8 is fixed on the box cover 11, a worm is arranged in the transmission box 8, a worm wheel meshing with the worm is arranged on the L-shaped tube 14, a plurality of worms are connected by a shaft, the shaft is connected to the output end of the motor 6, a through slot is penetrated on the transmission box 8, the L-shaped tube 14 penetrates the through slot and is rotatably connected thereto;

[0024] A spiral tube 15 extending into the bag 2 and abutting against the bag 2 is fixed on the L-shaped tube 14. A check valve can be installed on the L-shaped tube 14 to prevent the air with dust from "backflowing" through the spiral tube 15 when the bag 2 is used; a plurality of dust removal holes are penetrated through the side wall of the spiral tube 15 abutting against the bag 2, and a fan 12 for conveying air into the plurality of spiral tubes 15 for dust removal is installed on the box cover 11, and an air outlet pipe 13 is installed at the air outlet end of the fan 12, and a plurality of L-shaped tubes 14 are all installed with a rotary joint 9 at the upper end, and a strip box 7 is installed on the air outlet pipe 13, and a plurality of rotary joints 9 are all connected to the strip box 7 through short pipes;

[0025] When the dust inside the bag 2 is processed, the fan 12 is started. The fan 12 works to transport the air through the air outlet pipe 13 to the L-shaped tube 14, and finally transports the air to the spiral tube 15 and blows it out through multiple dust removal holes, so that the dust on the inner wall of the bag 2 can be blown off. At the same time, the motor 6 is started. The motor 6 drives the shaft and multiple worms to rotate. The rotation of the worm drives the worm wheel, the L-shaped tube 14 and the spiral tube 15. Since the spiral tube 15 is against the inner wall of the bag 2, the bag 2 shakes, and the air blown out from the dust removal hole can effectively remove the dust on the inner wall of the bag 2, the effect is better, and it can be applicable to various types of bags 2, and the spiral tube 15 does not affect the dust filtering effect of the bag 2.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field 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.

Claims

1. A dust filter device for a bag filter, characterized in that: include: A conveying box (1), wherein a plurality of cloth bags (2) are installed at the bottom of the conveying box (1), a dust exhaust box (4) is installed at the bottom of the cloth bags (2), and a box cover (11) is installed at the upper end of the conveying box (1); A bag dust removal assembly; the bag dust removal assembly comprises a plurality of L-shaped tubes (14) penetrating a box cover (11) and rotatably connected thereto so as to be able to rotate synchronously; a spiral tube (15) extending into the bag (2) and abutting against the bag (2) is fixed to the L-shaped tube (14); a plurality of dust removal holes are penetrated through the side wall of the spiral tube (15) abutting against the bag (2); and a fan (12) for conveying air into the plurality of spiral tubes (15) for dust removal is installed on the box cover (11).

2. The dust filtering device of a bag filter according to claim 1, characterized in that: in: An air inlet pipe (5) is installed on the conveying box (1), and the air inlet pipe (5) is arranged on one side of the conveying box (1).

3. The dust filtering device of a bag filter according to claim 1, characterized in that: in: Four support rods (3) are fixed to the bottom of the conveying box (1), and the support rods (3) are fixedly connected to the dust exhaust box (4).

4. The dust filtering device of a bag filter according to claim 1, characterized in that: in: An air outlet pipe (13) is installed at the air outlet end of the fan (12), a plurality of L-shaped pipes (14) are each installed with a rotary joint (9) at their upper ends, a strip-shaped box (7) is installed on the air outlet pipe (13), and the plurality of rotary joints (9) are each connected to the strip-shaped box (7) via a short pipe.

5. The dust filtering device of a bag filter according to claim 1, characterized in that: in: A support plate (10) is mounted on the box cover (11), a motor (6) is mounted on the support plate (10), a transmission box (8) is fixed on the box cover (11), a worm is provided in the transmission box (8), a worm wheel meshing with the worm is provided on the L-shaped tube (14), a plurality of worms are connected via a shaft, and the shaft is connected to an output end of the motor (6).

6. The dust filtering device of a bag filter according to claim 5, characterized in that: in: The transmission box (8) is provided with a through slot, and the L-shaped tube (14) passes through the through slot and is rotatably connected thereto.

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