Rotary dust suction device

Abstract

The utility model discloses a rotary dust suction device which comprises an air distribution cavity, a plurality of exhaust pipes and a rotary driving mechanism, the upper end of the air distribution cavity is rotatably provided with the exhaust pipe communicated with the air distribution cavity, the exhaust pipe comprises a dust removal section, the dust removal section is arranged beside a corresponding dust remover filter bag, and the rotary driving mechanism is arranged on the dust removal section. Through holes which are sequentially arranged from top to bottom are formed in the side, close to the filter bag of the dust remover, of the dust removal section, a rotation driving mechanism for driving the exhaust pipe to rotate is arranged on the air distribution cavity, compared with the prior art, the dust removal area of the peripheral face of the filter bag can be large, and the dust removal efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of baghouse dust collectors, and in particular to a rotary dust collection device. Background Technology

[0002] Baghouse dust collectors are a commonly used type of industrial dust collector. Due to their simple structure and low cost, they are widely used. A typical baghouse dust collector mainly consists of a filter chamber. The upper end of the filter chamber is sealed by a perforated plate. A filter bag extends downwards from each hole of the perforated plate. The lower end of the filter bag is closed, and its upper end connects to the upper chamber above the filter chamber. The lower end of the filter chamber is connected to a dust hopper. The lower part of the filter chamber has an air inlet, and the upper chamber has an air outlet. Dust-laden gas enters the filter chamber through the air inlet and can only pass through the filter bags before entering the upper chamber. The dust is discharged from the outlet, and during this process, it is filtered onto the outer surface of the filter bag. As the dust removal operation continues, more and more dust accumulates on the surface of the filter bag, which will lead to a rapid decrease in filtration efficiency. Therefore, current baghouse dust collectors are still equipped with a pulse-jet cleaning system in the upper chamber. During the dust removal operation, the filtration is stopped every once in a while, and the pulse-jet cleaning system is started to blow air into the inside of the filter bag, causing the dust attached to the surface of the filter bag to fall off. It can be seen that this type of baghouse dust collector cannot carry out continuous dust removal operation, and the dust removal efficiency is greatly limited. In addition, the cost of the pulse-jet cleaning system is high.

[0003] A high-efficiency baghouse dust collector, patent application number CN201510666475.9, includes a filter chamber, the upper end of which is closed by a perforated plate, and the lower end which is connected to a dust hopper; an air inlet is located at the bottom of the filter chamber; an upper chamber is located above the filter chamber, and an air outlet is located on the side of the upper chamber; a filter bag extends downward from each through hole of the perforated plate; air in the filter chamber can only enter the upper chamber after passing through the filter bag; the air inlet is connected to a gas distribution chamber at the bottom of the filter chamber, and the gas distribution chamber is connected upward to a parallel... The filter bag has an exhaust pipe, and at least one exhaust pipe is arranged next to each filter bag; the port of the exhaust pipe extends to near the perforated plate; the surface of the exhaust pipe has side holes facing the filter bag distributed axially. This dust collector can achieve continuous dust removal operation and keep the surface of the filter bag with less dust at all times, which has high dust removal efficiency and low cost. However, the cleaning points on the outer circumference of the filter bag are fixed, which makes the cleaning surface on the outer circumference of the filter bag small, reducing the filtration area of ​​the filter bag, so the dust removal efficiency needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a rotary dust collection device that can clean a large area of ​​the outer circumference of the filter bag, thereby further improving dust removal efficiency.

[0005] To achieve the above objectives, this utility model proposes a rotary dust collection device, including a gas distribution chamber, several exhaust pipes, and a rotary drive mechanism. The upper end of the gas distribution chamber is rotatably provided with an exhaust pipe communicating with it. The exhaust pipe includes a dust removal section, which is located next to a corresponding dust collector filter bag. The dust removal section has through holes arranged sequentially from top to bottom on the side near the dust collector filter bag. The gas distribution chamber is provided with a rotary drive mechanism for driving the exhaust pipe to rotate.

[0006] Preferably, the lower end of the dust removal section is provided with an inclined transition section, and the lower end of the transition section is provided with an installation section, which is concentrically arranged with the dust collector filter bag.

[0007] Preferably, the rotary drive mechanism includes a main drive rod, several sub-drive rods I, sub-drive rods II, and a rotary motor. One end of each sub-drive rod I is fixedly connected to a corresponding mounting section, and the other end is hinged to the main drive rod. One end of each sub-drive rod II is fixedly connected to the drive end of the rotary motor, and the other end of each sub-drive rod II is hinged to the main drive rod.

[0008] Preferably, the front end of the air distribution chamber is provided with an air inlet.

[0009] Preferably, the lower end of the gas distribution chamber is provided with an openable and closable ash discharge door, which is driven to open and close by an ash discharge motor installed on the gas distribution chamber.

[0010] The beneficial effects of this utility model are as follows: This utility model drives the exhaust pipe to rotate through a rotary drive mechanism, so that the cleaning section moves along the circumference of the dust collector filter bag, thereby achieving circumferential cleaning of the dust collector filter bag. Compared with the prior art, it can clean a large area of ​​the outer circumference of the filter bag, further improving the dust removal efficiency.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a rotary dust collection device according to this utility model;

[0013] Figure 2 This is a schematic diagram of the rotary drive mechanism.

[0014] In the diagram: 1-Gas chamber, 2-Exhaust pipe, 3-Rotary drive mechanism, 4-Ash discharge door, 5-Ash discharge motor, 6-Air inlet, 21-Dust cleaning section, 22-Through hole, 23-Transition section, 24-Installation section, 31-Main drive rod, 32-Sub-drive rod I, 33-Sub-drive rod II, 34-Rotary motor. Detailed Implementation

[0015] See Figure 1 ,2 This utility model discloses a rotary dust collection device, including a gas distribution chamber 1, several exhaust pipes 2, and a rotary drive mechanism 3. The upper end of the gas distribution chamber 1 is rotatably provided with an exhaust pipe 2 connected to it. The exhaust pipe 2 includes a dust removal section 21, which is located next to a corresponding dust collector filter bag. The side of the dust removal section 21 near the dust collector filter bag is provided with through holes 22 arranged sequentially from top to bottom. The gas distribution chamber 1 is provided with a rotary drive mechanism 3 for driving the exhaust pipe 2 to rotate.

[0016] The lower end of the dust removal section 21 is provided with an inclined transition section 23, and the lower end of the transition section 23 is provided with an installation section 24, which is concentrically arranged with the dust collector filter bag.

[0017] The rotary drive mechanism 3 includes a main drive rod 31, several sub-drive rods I 32, sub-drive rods II 33 and a rotary motor 34. One end of each sub-drive rod I 32 is fixedly connected to the corresponding mounting section 24, and the other end is hinged to the main drive rod 31. One end of each sub-drive rod II 33 is fixedly connected to the drive end of the rotary motor 34, and the other end of each sub-drive rod II 33 is hinged to the main drive rod 31.

[0018] The front end of the air distribution chamber 1 is provided with an air inlet 6.

[0019] The lower end of the gas distribution chamber 1 is provided with an openable and closable ash discharge door 4, which is driven to open and close by an ash discharge motor 5 installed on the gas distribution chamber 1.

[0020] The working process of this utility model:

[0021] In the operation of this rotary dust collection device, dust-laden gas entering the air distribution chamber 1 through the air inlet 6 is sprayed upwards into the filter chamber through each exhaust pipe 2. At this time, according to the principle of fluid mechanics, the air pressure in the exhaust pipe 2 is significantly lower than the air pressure near the dust collector filter bag. Therefore, the dust on the surface of the dust collector filter bag will be sucked into the exhaust pipe 2 and re-sprayed into the filter chamber. Meanwhile, the rotating motor 34 drives the sub-transmission rod I33 to rotate, and through the cooperation of the main transmission rod 31 and the sub-transmission rod I32, it drives the installation section 24 to rotate. The installation section 24 drives the cleaning section 21 to move along the circumference of the dust collector filter bag through the transition section 23, thereby realizing the circumferential cleaning of the dust collector filter bag.

[0022] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A rotary dust collection device, characterized in that: It includes a gas distribution chamber (1), several exhaust pipes (2), and a rotary drive mechanism (3). The upper end of the gas distribution chamber (1) is rotatably provided with an exhaust pipe (2) connected to it. The exhaust pipe (2) includes a dust removal section (21). The dust removal section (21) is located on one side of the corresponding dust collector filter bag. The side of the dust removal section (21) near the dust collector filter bag is provided with through holes (22) arranged sequentially from top to bottom. The gas distribution chamber (1) is provided with a rotary drive mechanism (3) for driving the exhaust pipe (2) to rotate.

2. The rotary dust collection device as described in claim 1, characterized in that: The lower end of the cleaning section (21) is provided with an inclined transition section (23), and the lower end of the transition section (23) is provided with an installation section (24), which is concentrically arranged with the dust collector filter bag.

3. The rotary dust collection device as described in claim 2, characterized in that: The rotary drive mechanism (3) includes a main drive rod (31), several sub-drive rods I (32), sub-drive rods II (33) and a rotary motor (34). One end of the sub-drive rod I (32) is fixedly connected to the corresponding mounting section (24), and the other end is hinged to the main drive rod (31). One end of the sub-drive rod II (33) is fixedly connected to the drive end of the rotary motor (34), and the other end of the sub-drive rod II (33) is hinged to the main drive rod (31).

4. The rotary dust suction device as described in claim 1, characterized in that: The front end of the air distribution chamber (1) is provided with an air inlet (6).

5. A rotary dust-collecting device as described in any one of claims 1 to 4, characterized in that: The lower end of the gas distribution chamber (1) is provided with an openable and closable ash discharge door (4), which is driven to open and close by an ash discharge motor (5) installed on the gas distribution chamber (1).

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