High-efficiency ash removal device for mining dry dust collector

Abstract

The utility model discloses an efficient ash removal device for a mine dry dust collector, which relates to the technical field of dust treatment and comprises a fixed support, a main air inlet pipe is arranged at the center of the fixed support in a penetrating manner, a connecting cylinder is fixedly mounted below the horizontal position of the fixed support, and a filter cylinder sealing cover plate is fixedly mounted at the bottom of the connecting cylinder. The outer wall of the main air inlet pipe penetrates through the circle center of the connecting cylinder and the circle center of the filter cylinder sealing cover plate, a rotary blowing pipe is fixedly installed below the outer wall of the main air inlet pipe, a plurality of blowing holes are formed in the outer wall of the rotary blowing pipe in an annular array mode, and a reset spring is fixedly installed at the top of the rotary blowing pipe. And the top of the reset spring is fixedly connected with the bottom of the filter cartridge sealing cover plate. According to the utility model, the main air inlet pipe and the rotary blowing pipe are matched with each other, so that gas is uniformly sprayed out by utilizing the rotary blowing pipe when the dust in the filter cartridge of the dry dust collector is cleaned, and the dust cleaning efficiency of the mine dry dust collector is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust control, in particular to a high-efficiency dust cleaning device for a mine dry dust collector. Background Art

[0002] In the process of collecting and filtering dust, the filter elements of mining dry dust collectors need to be cleaned regularly or irregularly. The existing technology has the following problems:

[0003] The existing dust cleaning method is to open a small hole in the main blowing pipe or connect a small hollow tube to direct high-pressure airflow to the upper end of the filter element's air outlet. The compressed air rushes out at high speed through the small hole or small hollow tube on the blowing pipe facing the filter cartridge. When it rushes into the inner cavity of the filter element, it generates a positive pressure airflow from the inside to the outside. At the same time, this process also causes the filter element to vibrate, causing dust on the outer surface of the filter element to fall off. In this process, directly injecting air from the filter element's air outlet into the inner cavity will produce a large air pressure loss and the airflow cannot be evenly distributed to the inner surfaces of the filter element, which greatly reduces the dust cleaning effect. If the blowing is performed while the equipment is in operation, the pressure of the positive airflow from the inside to the outside cannot overcome the filtration resistance from the outside to the inside, and the dust cannot fall off the outer surface of the filter element. At the same time, because the air humidity in coal mines is high and spraying operations are often accompanied, dust adhering to the filter element often sticks. Traditional dust cleaning methods cannot remove dust from the filter element, causing the equipment to malfunction. Utility Model Content

[0004] The utility model provides a high-efficiency dust cleaning device for a dry dust collector for mining, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A high-efficiency dust cleaning device for a dry dust collector for mining, comprising a fixed bracket, a main air intake pipe is provided through the center of the fixed bracket, a connecting cylinder is fixedly installed below the horizontal part of the fixed bracket, a filter cartridge sealing cover is fixedly installed on the bottom of the connecting cylinder, the outer wall of the main air intake pipe passes through the center of the connecting cylinder and the filter cartridge sealing cover, a rotating blow pipe is fixedly installed below the outer wall of the main air intake pipe, a plurality of blow holes are provided in a circular array on the outer wall of the rotating blow pipe, a return spring is fixedly installed on the top of the rotating blow pipe, the top of the return spring is fixedly connected to the bottom of the filter cartridge sealing cover, and the main air intake pipe is located on the inner side of the return spring.

[0007] A further improvement of the technical solution of the present invention is that a rotating sealing ring is fixedly installed on the outer wall of the main air intake pipe, and the rotating sealing ring is located above the level of the fixed bracket.

[0008] A further improvement of the technical solution of the present utility model is that the bottom end of the main air inlet pipe penetrates to the bottom of the rotary blowing pipe and is fixedly installed with a lower support plate.

[0009] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0010] 1. The utility model provides a high-efficiency dust cleaning device for a dry dust collector for mining. Through the mutual cooperation between the main air inlet pipe and the rotary blowing pipe, when cleaning the filter cartridge of the dry dust collector, the gas is evenly ejected by the rotary blowing pipe, which significantly improves the dust cleaning efficiency of the dry dust collector for mining.

[0011] 2. The utility model provides a high-efficiency dust cleaning device for a dry dust collector for mining. Through the mutual cooperation between the filter cartridge sealing cover and the return spring, the rotating blowing pipe can use the return spring to vibrate up and down rapidly while spraying high-pressure gas, so that the ejected high-pressure gas can better blow off the dust attached to the inner wall of the filter cartridge, while avoiding the noise caused by resonance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] In the figure: 1. Main air inlet pipe; 2. Rotating sealing ring; 3. Fixed bracket; 4. Filter cartridge sealing cover; 5. Return spring; 6. Rotating blowing pipe; 7. Lower support plate. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0015] like Figure 1 As shown, the utility model provides a high-efficiency dust cleaning device for a dry dust collector for mining, comprising a fixed bracket 3, a main air intake pipe 1 is provided through the center of the fixed bracket 3, a connecting cylinder is fixedly installed below the horizontal part of the fixed bracket 3, a filter cartridge sealing cover plate 4 is fixedly installed at the bottom of the connecting cylinder, the outer wall of the main air intake pipe 1 passes through the center of the connecting cylinder and the filter cartridge sealing cover plate 4, a rotating blowing pipe 6 is fixedly installed below the outer wall of the main air intake pipe 1, a plurality of blowing holes are opened in a circular array on the outer wall of the rotating blowing pipe 6, a return spring 5 is fixedly installed on the top of the rotating blowing pipe 6, the top of the return spring 5 is fixedly connected to the bottom of the filter cartridge sealing cover plate 4, and the main air intake pipe 1 is located on the inner side of the return spring 5;

[0016] During use, the integral rotary blowing pipe 6 is extended into the interior of the filter cartridge of the dust collector, and at the same time, the filter cartridge sealing cover plate 4 connected to the fixed bracket 3 and the connecting tube is pressed downward, so that the filter cartridge sealing cover plate 4 compresses the reset spring 5 and fits tightly against the top of the dust collector filter cartridge to seal it, and then the fixed bracket 3 is fixed to the top of the dust collector. At this time, the compressed air is injected into the inner cavity of the rotary blowing pipe 6 through the connection with the top of the main air inlet pipe 1, and is evenly blown out through the several blowing holes opened in the circular array on the outer wall of the rotary blowing pipe 6, so as to spray and clean the inner wall of the dust collector filter cartridge, so that the dust on the inner wall is evenly sprayed downward together with the air.

[0017] like Figure 1 As shown, a rotating sealing ring 2 is fixedly installed on the outer wall of the main air intake pipe 1, and the rotating sealing ring 2 is located above the level of the fixed bracket 3. The bottom end of the main air intake pipe 1 passes through the bottom of the rotating blowing pipe 6 and is fixedly installed with a lower support plate 7;

[0018] At the same time, after the rotary blowing pipe 6 is extended into the filter cartridge, the bottom is supported by the lower support plate 7 to maintain the stability of the rotary blowing pipe 6. When the rotary blowing pipe 6 vibrates during the blowing, the elasticity of the return spring 5 is used for buffering, so that the entire rotary blowing pipe 6 and the main air intake pipe 1 on its outer wall pass through the center of the fixed bracket 3 and jump up and down. The gap between the main air intake pipe 1 and the fixed bracket 3 is sealed by the rotary sealing ring 2 on its outer wall to prevent gas overflow, so that the gas can evenly drive the dust to be sprayed downward.

[0019] The following is a detailed description of the working principle of the high-efficiency cleaning device of the mine dry dust collector.

[0020] like Figure 1 As shown, when in use, the integral rotating blowing pipe 6 is extended into the interior of the filter cartridge of the dust collector, and at the same time, the filter cartridge sealing cover plate 4 connected to the fixing bracket 3 and the connecting tube is pressed downward, so that the filter cartridge sealing cover plate 4 compresses the return spring 5 and fits tightly against the top of the dust collector filter cartridge to seal it, and then the fixing bracket 3 is fixed to the top of the dust collector. At this time, the compressed air is injected into the inner cavity of the rotating blowing pipe 6 through the connection with the top of the main air inlet pipe 1, and is evenly blown out through the multiple blowing holes opened in the annular array on the outer wall of the rotating blowing pipe 6, thereby spraying the inner wall of the dust collector filter cartridge. Clean the dust so that the dust on the inner wall falls evenly downward. At the same time, after the rotating blowing pipe 6 penetrates into the filter cartridge, the bottom is supported by the lower support plate 7 to maintain the stability of the rotating blowing pipe 6. When the rotating blowing pipe 6 vibrates during the blowing, the elasticity of the return spring 5 is used for buffering, so that the whole rotating blowing pipe 6 and the main air intake pipe 1 on its outer wall pass through the center of the fixed bracket 3 to jump up and down, and the gap between the main air intake pipe 1 and the fixed bracket 3 is sealed by the rotating sealing ring 2 on its outer wall to prevent gas overflow, so that the gas can evenly drive the dust to be sprayed downward.

[0021] While the present invention has been generally described above, it is readily apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A high-efficiency dust cleaning device for a dry dust collector for mining, comprising a fixed bracket (3), characterized in that: A main air intake pipe (1) is provided through the center of the fixed bracket (3), a connecting cylinder is fixedly installed below the horizontal part of the fixed bracket (3), a filter cartridge sealing cover (4) is fixedly installed at the bottom of the connecting cylinder, the outer wall of the main air intake pipe (1) passes through the center of the connecting cylinder and the filter cartridge sealing cover (4), a rotating blowing pipe (6) is fixedly installed below the outer wall of the main air intake pipe (1), a plurality of blowing holes are provided in a circular array on the outer wall of the rotating blowing pipe (6), a reset spring (5) is fixedly installed on the top of the rotating blowing pipe (6), the top of the reset spring (5) is fixedly connected to the bottom of the filter cartridge sealing cover (4), and the main air intake pipe (1) is located on the inner side of the reset spring (5).

2. The high-efficiency dust cleaning device for a dry dust collector for mining according to claim 1, characterized in that: A rotating sealing ring (2) is fixedly mounted on the outer wall of the main air inlet pipe (1), and the rotating sealing ring (2) is located above the level of the fixed bracket (3).

3. The high-efficiency dust cleaning device for a dry dust collector for mining according to claim 1, characterized in that: The bottom end of the main air inlet pipe (1) penetrates the bottom of the rotary blowing pipe (6) and is fixedly mounted with a lower support plate (7).

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