Filter bag comprehensive cleaning device of bag-type dust collector

Abstract

The utility model discloses a comprehensive cleaning device for filter bags of a bag-type dust collector, 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 an ash cleaning section, the ash cleaning section is arranged beside the corresponding filter bag of the dust collector, and the rotary driving mechanism is arranged on the air distribution cavity. An arc-shaped surface matched with a filter bag of the dust remover is arranged on one side, close to the filter bag of the dust remover, of the dust removal section, a plurality of through holes are formed in the arc-shaped surface, the through holes are arranged into at least two rows, the adjacent rows of through holes are arranged in a staggered manner, and a rotary driving mechanism for driving the exhaust pipe to rotate is arranged on the air distribution cavity. And the peripheral surface of the filter bag can be subjected to comprehensive dust removal, so that the dust removal efficiency is close to the maximum.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, in particular to a comprehensive cleaning device for filter bags of bag dust collectors. Background Art

[0002] The bag dust collector is a commonly used industrial dust collector. It has been widely used due to its simple structure and low cost. The ordinary bag dust collector mainly includes a filter chamber, the upper end of which is sealed by a porous plate. A filter bag extends downward from each through hole of the porous plate. The lower end of the filter bag is closed, and the upper end is connected to the upper chamber above the filter chamber; the lower end of the filter chamber is connected to the ash hopper; the lower part of the filter chamber has an air inlet connected to the filter chamber, and the upper chamber has an air outlet; after the dust-laden gas enters the filter chamber from the air inlet, it can only pass through the filter bag and then enter the upper chamber, and The dust is discharged from the air outlet. During this process, the dust is filtered on the outer surface of the filter bag. As the dust removal operation proceeds, the dust on the surface of the filter bag accumulates more and more, which will cause the filtration efficiency to drop rapidly. Therefore, the current bag dust collector is also equipped with a blowing system in the upper chamber. During the dust removal operation, the air filtering is stopped at regular intervals, and the blowing system is started to blow the inside of the filter bag to make the dust attached to the surface of the bag fall outward. It can be seen that this type of bag dust collector cannot perform dust removal operations continuously, and the dust removal efficiency is greatly limited. In addition, the cost of the blowing system is relatively high.

[0003] The application (patent) number is: CN201510666475.9. A high-efficiency bag dust collector includes a filter chamber, the upper end of which is closed by a porous plate and the lower end is connected to an ash hopper; an air inlet is provided at the lower part of the filter chamber; an upper chamber is provided above the filter chamber, and an air outlet is provided on the side of the upper chamber; a filter bag extends downward from each through hole of the porous plate; the air in the filter chamber can only enter the upper chamber after passing through the filter bag; the air inlet is connected to an air distribution cavity at the lower part of the filter chamber, and the air distribution cavity extends upward. An exhaust pipe is connected and parallel to the filter bag, and at least one exhaust pipe is arranged next to each filter bag; the port of the exhaust pipe extends to near the porous plate; the surface of the exhaust pipe is axially distributed with side holes facing the filter bag. The dust collector can achieve continuous dust removal operations and always keep less dust on the surface of the filter bag, has high dust removal efficiency, and is low in cost. However, the bag dust collector cannot fully clean the outer peripheral surface of the filter bag, and cannot maximize the filtration efficiency of the filter bag, so the dust removal efficiency needs to be improved. Summary of the Invention

[0004] The purpose of the utility model is to solve the problems in the prior art and to propose a comprehensive cleaning device for filter bags of a bag dust collector, which can comprehensively clean the outer peripheral surface of the filter bag and maximize the dust removal efficiency.

[0005] To achieve the above-mentioned purpose, the utility model proposes a comprehensive cleaning device for the filter bags of a bag dust collector, including an air distribution chamber, a plurality of exhaust pipes, and a rotating drive mechanism. The upper end of the air distribution chamber is rotatably provided with an exhaust pipe connected thereto, and the exhaust pipe includes a cleaning section, and the cleaning section is provided on the side of the corresponding dust collector filter bag. The cleaning section is provided with an arc-shaped surface that matches the dust collector filter bag on the side close to the dust collector filter bag, and a plurality of through holes are provided on the arc-shaped surface. The through holes are arranged in at least two rows, and the through holes in adjacent rows are staggered. The air distribution chamber is provided with a rotating drive mechanism for driving the exhaust pipe to rotate.

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

[0007] Preferably, the exhaust pipe is a double-layer pipe, and the inner layer of the exhaust pipe is a Teflon layer.

[0008] Preferably, the rotary drive mechanism includes a main transmission rod, several sub-transmission rods I, a sub-transmission rod II and a rotating motor, one end of the sub-transmission rod I is fixedly connected to the corresponding mounting section, and the other end is hingedly connected to the main transmission rod, one end of the sub-transmission rod II is fixedly connected to the driving end of the rotating motor, and the other end of the sub-transmission rod II is hingedly connected to the main transmission rod.

[0009] Preferably, an openable and closable ash unloading door is provided at the lower end of the air dividing cavity, and the ash unloading door is opened and closed by an ash unloading motor provided on the air dividing cavity.

[0010] The beneficial effects of the present invention are as follows: the exhaust pipe of the present invention includes a dust cleaning section, and the side of the dust cleaning section close to the dust collector filter bag is provided with an arcuate surface that matches the dust collector filter bag, and a plurality of through holes are provided on the arcuate surface. The through holes are arranged in at least two rows, and the through holes in adjacent rows are staggered. A rotating drive mechanism for driving the exhaust pipe to rotate is provided on the air dividing cavity. Compared with the existing technology, the outer peripheral surface of the filter bag can be fully cleaned, so that the dust removal efficiency is close to maximized.

[0011] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a comprehensive cleaning device for filter bags of a bag dust collector according to the present invention;

[0013] Figure 2 This is a partial structural diagram of a comprehensive cleaning device for filter bags of a bag dust collector of the utility model;

[0014] Figure 3 It is a top view of the cleaning section;

[0015] Figure 4 It is a structural diagram of the rotary drive mechanism.

[0016] In the figure: 1- air cavity, 2- exhaust pipe, 3- rotary drive mechanism, 4- ash unloading door, 5- ash unloading motor, 6- air inlet, 20- arc surface, 21- ash cleaning section, 22- through hole, 23- transition section, 24- installation section, 31- main transmission rod, 32- sub-transmission rod I, 33- sub-transmission rod II, 34- rotating motor. DETAILED DESCRIPTION

[0017] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model is a comprehensive cleaning device for the filter bags of a bag dust collector, comprising an air distribution chamber 1, a plurality of exhaust pipes 2, and a rotary drive mechanism 3. The upper end of the air distribution chamber 1 is rotatably provided with an exhaust pipe 2 connected thereto, and the exhaust pipe 2 includes a cleaning section 21, which is arranged on one side of the corresponding dust collector filter bag. The cleaning section 21 is provided with an arcuate surface 20 that cooperates with the dust collector filter bag on the side close to the dust collector filter bag. The arcuate surface 20 is provided with a plurality of through holes 22, which are arranged in at least two rows, and the through holes 22 in adjacent rows are staggered. The air distribution chamber 1 is provided with a rotary drive mechanism 3 that drives the exhaust pipe 2 to rotate.

[0018] The lower end of the dust cleaning section 21 is provided with an inclined transition section 23 , and the lower end of the transition section 23 is provided with a mounting section 24 , and the mounting section 24 is concentrically arranged with the dust collector filter bag.

[0019] The exhaust pipe 2 is a double-layer pipe, and the inner layer of the exhaust pipe 2 is a Teflon layer.

[0020] The rotary drive mechanism 3 includes a main transmission rod 31, several sub-transmission rods I32, a sub-transmission rod II33 and a rotating motor 34. One end of the sub-transmission rod I32 is fixedly connected to the corresponding mounting section 24, and the other end is hingedly connected to the main transmission rod 31. One end of the sub-transmission rod II33 is fixedly connected to the driving end of the rotating motor 34, and the other end of the sub-transmission rod II33 is hingedly connected to the main transmission rod 31.

[0021] An openable and closable ash discharge door 4 is provided at the lower end of the air separation chamber 1 , and the ash discharge door 4 is driven to open and close by an ash discharge motor 5 provided on the air separation chamber 1 .

[0022] Working process of this utility model:

[0023] The utility model relates to a comprehensive cleaning device for the filter bags of a bag dust collector. During operation, the dust-laden gas entering the air distribution cavity 1 is sprayed upward into the filter chamber from 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 filter bag of the dust collector. Therefore, the dust on the surface of the filter bag of the dust collector will be sucked into the exhaust pipe 2 and re-sprayed into the filter chamber. The rotating motor 34 drives the sub-transmission rod II33 to rotate, and drives the mounting section 24 to rotate through the cooperation of the main transmission rod 31 and the sub-transmission rod I32. The mounting section 24 drives the cleaning section 21 to move along the circumference of the filter bag of the dust collector through the transition section 23, thereby realizing circumferential cleaning of the filter bag of the dust collector.

[0024] The through holes 22 are arranged in at least two rows, and the through holes 22 in adjacent rows are staggered so that the missed area between two upper and lower adjacent through holes 22 in one row is filled and cleaned by the through holes 22 in the other row.

[0025] The Teflon layer has excellent non-stick properties and is corrosion and wear resistant.

[0026] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A comprehensive cleaning device for filter bags of a bag dust collector, characterized by: The invention comprises an air separation chamber (1), a plurality of exhaust pipes (2), and a rotary drive mechanism (3). The upper end of the air separation chamber (1) is rotatably provided with an exhaust pipe (2) connected thereto. The exhaust pipe (2) comprises a dust cleaning section (21). The dust cleaning section (21) is provided on one side of a corresponding dust collector filter bag. The side of the dust cleaning section (21) close to the dust collector filter bag is provided with an arcuate surface (20) matched with the dust collector filter bag. The arcuate surface (20) is provided with a plurality of through holes (22). The through holes (22) are arranged in at least two rows, and the through holes (22) in adjacent rows are staggered. The air separation chamber (1) is provided with a rotary drive mechanism (3) for driving the exhaust pipe (2) to rotate.

2. The filter bag comprehensive cleaning device of a bag dust collector according to claim 1, characterized in that: The lower end of the dust cleaning section (21) is provided with an inclined transition section (23), and the lower end of the transition section (23) is provided with a mounting section (24), and the mounting section (24) is concentrically arranged with the dust collector filter bag.

3. The filter bag comprehensive cleaning device for a bag dust collector according to claim 1, characterized in that: The exhaust pipe (2) is a double-layer pipe, and the inner layer of the exhaust pipe (2) is a Teflon layer.

4. The filter bag comprehensive cleaning device for a bag dust collector according to claim 1, characterized in that: The rotary drive mechanism (3) comprises a main transmission rod (31), a plurality of sub-transmission rods I (32), a sub-transmission rod II (33) and a rotary motor (34), wherein one end of the sub-transmission rod I (32) is fixedly connected to the corresponding mounting section (24), and the other end is hingedly connected to the main transmission rod (31), one end of the sub-transmission rod II (33) is fixedly connected to the driving end of the rotary motor (34), and the other end of the sub-transmission rod II (33) is hingedly connected to the main transmission rod (31).

5. The comprehensive cleaning device for filter bags of a bag dust collector according to claim 1, characterized in that: An openable and closable ash discharge door (4) is provided at the lower end of the air separation cavity (1), and the ash discharge door (4) is driven to open and close by an ash discharge motor (5) provided on the air separation cavity (1).

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