Pressure relief and dust control device for coal storage bunker

Abstract

The utility model discloses a pressure relief and dust control device for a coal storage bunker, and relates to the technical field of dust control of the coal storage bunker. According to the pressure relief and dust control device for the coal storage bunker, airflow is input into the channel from the ash falling hopper, is preliminarily filtered by the filter screen and then enters the dust control bunker, so that large-particle impurities in the airflow are preliminarily filtered, and large-particle coal cinder and coal dust are prevented from being attached to the surface of a cloth bag to influence the dust removal effect and the air circulation rate; an electric push rod is controlled to work to drive a lifting block to slide along the inner side of a movable bin, a cleaning brush and a baffle enter the inner side of a channel through a through hole at the same time, the cleaning brush cleans the left side of a filter screen, large-particle coal cinder attached to the surface of the filter screen falls back into a coal storage bin body from an ash falling hopper, and meanwhile the baffle seals the right side of the filter screen; coal dust backflow is avoided, potential safety hazards are reduced, the vibrating motor is started to conduct vibrating cleaning on the dust collecting cloth bag, the coal dust is separated from the dust collecting cloth bag and falls into the inner side of the collecting box in a centralized mode, and centralized collection of the coal dust is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal storage bin dust control, in particular to a coal storage bin pressure relief dust control device. Background Art

[0002] The materials in the coal storage bin are transported by the material conveyor and fall directly into the bin. The falling materials will squeeze the air in the bin and move upward to form a high-pressure rising airflow. Such rising airflow will impact and peel off the continuous materials when it meets the falling materials, making the materials dispersed. With the impact and friction between the high-pressure gas and the falling materials, a high dust concentration and heat will accumulate in the coal storage bin, increasing the risk of dust explosion. In order to reduce the dust concentration in the coal storage bin and reduce safety hazards, the use of coal storage bin pressure relief and dust control devices is involved.

[0003] For example, publication number CN204137658U discloses a coal storage bin pressure relief dust control device, wherein a material drop port is provided on the top plate of the coal storage bin, a dust collector bracket is fixed on the top plate of the coal storage bin, a laminated flat bag dust collector is fixed on the dust collector bracket, a fan motor is fixed on the top surface of the laminated flat bag dust collector, a vibrating motor is fixed on the side wall of the laminated flat bag dust collector, a mounting beam is fixed on the side wall plate of the coal storage bin below the top plate of the coal storage bin, a cone ash hopper is fixed on the mounting beam, a large opening of the cone ash hopper is connected to the air inlet of the laminated flat bag dust collector, and a small opening of the cone ash hopper is arranged downward; the utility model can form a smooth air flow field in the coal storage bin, effectively reduce the diffusion of coal dust in the coal storage bin to the outside of the bin, reduce the coal dust concentration in the coal storage bin, eliminate the hidden danger of dust explosion, and will not cause secondary pollution outside the raw coal bin;

[0004] The coal storage bin pressure relief and dust control device in this utility model lacks a preliminary filtering structure for coal slag, which causes coal slag and coal dust to easily enter the dust collector with the airflow and adhere to the surface of the bags, affecting the dust removal effect and air circulation rate. At the same time, it lacks a separate collection function for coal dust, which causes the coal dust concentration in the coal storage bin to increase sharply when the coal dust on the surface of the bags is vibrated, posing certain safety hazards. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a coal storage bin pressure relief and dust control device, which solves the problem that the coal storage bin pressure relief and dust control device lacks a preliminary filtering structure for coal slag, which causes coal slag and coal dust to easily enter the dust collector with the airflow and adhere to the surface of the bags, affecting the dust removal effect and air circulation rate. At the same time, it lacks a separate collection function for coal dust, which causes the coal dust concentration in the coal storage bin to increase sharply when the coal dust on the surface of the bags is vibrated, posing certain safety hazards.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a coal storage bin pressure relief dust control device, comprising a coal storage bin body, a dust control bin is fixedly installed on the upper end of the coal storage bin body, an ash hopper is arranged on the left side of the dust control bin, a filter is arranged on the right side of the ash hopper, a movable bin is fixedly installed on the upper end of the ash hopper, an electric push rod is arranged on the upper end of the movable bin, a lifting block is arranged on the inner side of the movable bin, a cleaning brush and a baffle are fixedly installed on the lower end of the lifting block, a dust collector is fixedly installed on the upper end of the inner side of the dust control bin, a vibrating motor is fixedly installed on the right side of the dust control bin, and a collection box is arranged on the lower end of the inner side of the dust control bin.

[0007] Preferably, the lower end of the ash hopper extends to the inner side of the coal storage bin body and is connected to the inner side of the coal storage bin body. A feed port is provided on the right side of the upper end of the coal storage bin body to facilitate the input of materials and the circulation of gas.

[0008] Preferably, the right side of the upper end of the ash hopper and the inner side of the dust control bin are connected to each other through a channel, and the filter screen and the inner side of the channel are fixedly connected and adapted to each other, so as to facilitate preliminary filtering of larger particles of coal slag and coal dust.

[0009] Preferably, the output end of the electric push rod extends to the inner side of the movable bin and is fixedly connected to the upper end of the lifting block. The lifting block is slidably connected to the inner side of the movable bin. The lower ends of the cleaning brush and the baffle extend to the inner side of the channel through the through holes and are respectively matched with the left and right sides of the filter. The side of the baffle and the inner side of the channel are sealed and connected by a sealing strip, which is convenient for cleaning the filter surface and controlling the on and off of the filter.

[0010] Preferably, a dust bag is provided at the lower end of the dust collector, and an exhaust port is provided on the right side of the dust collector extending to the outside of the dust control bin. The output end of the vibration motor extends to the inside of the dust control bin and is adapted to the dust bag to facilitate dust removal and discharge of the airflow, as well as cleaning of the dust bag.

[0011] Preferably, the collection box and the inner side of the dust control bin are slidably connected and fit together, the front side of the collection box extends to the outer side of the dust control bin and is fixedly mounted with a sealing cover, the sealing cover is sealingly connected to the front side of the dust control bin, so as to facilitate the centralized collection and cleaning of dust on the surface of the dust removal bag.

[0012] Beneficial Effects

[0013] The utility model provides a coal storage bin pressure relief and dust control device. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The coal storage bin pressure relief dust control device is equipped with a dust control bin, an ash hopper, a channel, and a filter. The airflow is input into the channel from the ash hopper and enters the dust control bin after preliminary filtration by the filter, thereby achieving preliminary filtration of large particles of impurities in the airflow and preventing large particles of coal slag and coal dust from adhering to the surface of the bag, which affects the dust removal effect and air circulation rate.

[0015] 2. The coal storage bin pressure relief and dust control device is provided with an ash hopper, a through hole, a filter, a movable bin, an electric push rod, a lifting block, a cleaning brush and a baffle. The lifting block is driven to slide along the inner side of the movable bin by controlling the operation of the electric push rod, so that the cleaning brush and the baffle enter the inner side of the channel through the through hole at the same time. The cleaning brush cleans the left side of the filter, so that the large particles of coal slag attached to the surface of the filter fall back into the coal storage bin body from the ash hopper. At the same time, the baffle seals the right side of the filter to avoid coal dust backflow, thereby reducing safety hazards.

[0016] 3. The coal storage bin pressure relief and dust control device is equipped with dust bags, vibrating motors, collection boxes, and sealing covers. The dust bags are vibrated and cleaned by turning on the vibrating motor, so that the coal dust is separated from the dust bags and falls into the inner side of the collection box, thereby realizing the centralized collection of the coal dust. The collection box can be taken out of the dust control bin for cleaning later by pulling the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of a half-section structure of the utility model in a front view;

[0019] Figure 3 It is a schematic diagram of the half-section structure of the dust control bin of the utility model from the right side.

[0020] In the figure: 1. Coal storage bin body; 2. Dust control bin; 3. Ash hopper; 31. Passage; 32. Through hole; 4. Filter; 5. Movable bin; 6. Electric push rod; 7. Lifting block; 8. Cleaning brush; 9. Baffle; 10. Dust collector; 101. Dust bag; 102. Exhaust port; 11. Vibrating motor; 12. Collection box; 121. Sealing cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3The utility model provides a technical solution: a coal storage bin pressure relief dust control device, comprising a coal storage bin body 1, a dust control bin 2 is fixedly installed on the upper end of the coal storage bin body 1, a dust hopper 3 is arranged on the left side of the dust control bin 2, the lower end of the ash hopper 3 extends to the inner side of the coal storage bin body 1, and is connected with the inner side of the coal storage bin body 1, a feed port is opened on the right side of the upper end of the coal storage bin body 1, a filter screen 4 is arranged on the right side of the ash hopper 3, the right side of the upper end of the ash hopper 3 and the inner side of the dust control bin 2 are connected with each other through a channel 31, the filter screen 4 and the inner side of the channel 31 are fixedly connected and adapted to each other, the airflow is input into the channel 31 from the ash hopper 3, and enters the dust control bin 2 after preliminary filtration by the filter screen 4, so as to realize preliminary filtration of large particle impurities in the airflow;

[0023] A movable bin 5 is fixedly installed at the upper end of the ash hopper 3, an electric push rod 6 is arranged at the upper end of the movable bin 5, a lifting block 7 is arranged inside the movable bin 5, a cleaning brush 8 and a baffle 9 are fixedly installed at the lower end of the lifting block 7, the output end of the electric push rod 6 extends to the inner side of the movable bin 5, and is fixedly connected to the upper end of the lifting block 7, the lifting block 7 is slidably connected to the inner side of the movable bin 5, the lower ends of the cleaning brush 8 and the baffle 9 are extended to the inner side of the channel 31 through the through hole 32, and are respectively connected to the filter screen 4. The left and right sides are adapted to each other, and the side of the baffle 9 and the inner side of the channel 31 are sealed and connected by a sealing strip. The electric push rod 6 is controlled to drive the lifting block 7 to slide along the inner side of the movable bin 5, so that the cleaning brush 8 and the baffle 9 enter the inner side of the channel 31 through the through hole 32 at the same time. The cleaning brush 8 cleans the left side of the filter screen 4, so that the large particles of coal slag attached to the surface of the filter screen 4 fall from the ash hopper 3 back into the coal storage bin body 1. At the same time, the baffle 9 seals the right side of the filter screen 4 to prevent coal dust from flowing back.

[0024] A dust collector 10 is fixedly installed at the upper end of the inner side of the dust control bin 2, a vibrating motor 11 is fixedly installed on the right side of the dust control bin 2, a dust bag 101 is arranged at the lower end of the dust collector 10, and an exhaust port 102 is arranged on the right side of the dust collector 10 extending to the outer side of the dust control bin 2, and the output end of the vibrating motor 11 extends to the inner side of the dust control bin 2 and is adapted to the dust bag 101, and a collection box 12 is arranged at the lower end of the inner side of the dust control bin 2, and the collection box 12 and the inner side of the dust control bin 2 are connected. They are slidably connected and fit each other. The front side of the collecting box 12 extends to the outside of the dust control bin 2 and is fixedly installed with a sealing cover 121. The sealing cover 121 is sealed and connected to the front side of the dust control bin 2. The dust bag 101 is vibrated and cleaned by turning on the vibrating motor 11, so that the coal dust is separated from the dust bag 101 and falls into the inside of the collecting box 12, thereby realizing the centralized collection of the coal dust. The collecting box 12 can be subsequently taken out of the dust control bin 2 for cleaning by pulling the sealing cover 121.

[0025] During use, materials are input into the inner side of the coal storage bin body 1 through the feed port, and the airflow is input into the channel 31 from the ash hopper 3, and enters the dust control bin 2 after preliminary filtration by the filter screen 4, thereby achieving preliminary filtration of large particles of impurities in the airflow. The airflow is driven by the dust collector 10 to pass through the dust bag 101 and then discharged from the exhaust port 102, thereby achieving pressure relief and dust control of the coal storage bin body 1. When the dust bag 101 needs to be cleaned, the lifting block 7 is driven to slide along the inner side of the movable bin 5 by controlling the electric push rod 6 to make the cleaning brush 8 and the baffle 9 simultaneously Entering the inner side of the channel 31 through the through hole 32, the cleaning brush 8 cleans the left side of the filter 4, so that the large particles of coal slag attached to the surface of the filter 4 fall back into the coal storage bin body 1 from the ash hopper 3. At the same time, the baffle 9 seals the right side of the filter 4 to prevent the coal dust from flowing back. The dust bag 101 is vibrated and cleaned by turning on the vibrating motor 11, so that the coal dust is separated from the dust bag 101 and falls into the inner side of the collection box 12, thereby realizing the centralized collection of the coal dust. The collection box 12 can be taken out of the dust control bin 2 for cleaning later by pulling the sealing cover 121.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal storage bin pressure relief and dust control device, comprising a coal storage bin body (1), characterized in that: A dust control bin (2) is fixedly mounted on the upper end of the coal storage bin body (1), an ash hopper (3) is arranged on the left side of the dust control bin (2), a filter screen (4) is arranged on the right side of the ash hopper (3), a movable bin (5) is fixedly mounted on the upper end of the ash hopper (3), an electric push rod (6) is arranged on the upper end of the movable bin (5), a lifting block (7) is arranged on the inner side of the movable bin (5), a cleaning brush (8) and a baffle (9) are fixedly mounted on the lower end of the lifting block (7), a dust collector (10) is fixedly mounted on the upper end of the inner side of the dust control bin (2), a vibration motor (11) is fixedly mounted on the right side of the dust control bin (2), and a collection box (12) is arranged on the lower end of the inner side of the dust control bin (2).

2. A coal storage bin pressure relief and dust control device according to claim 1, characterized in that: The lower end of the ash hopper (3) extends to the inner side of the coal storage bin body (1) and is connected to the inner side of the coal storage bin body (1). A feed port is provided on the right side of the upper end of the coal storage bin body (1).

3. A coal storage bin pressure relief and dust control device according to claim 1, characterized in that: The right side of the upper end of the dust hopper (3) and the inner side of the dust control bin (2) are connected to each other via a channel (31), and the filter screen (4) and the inner side of the channel (31) are fixedly connected and fit each other.

4. A coal storage bin pressure relief and dust control device according to claim 3, characterized in that: The output end of the electric push rod (6) extends to the inner side of the movable bin (5) and is fixedly connected to the upper end of the lifting block (7). The lifting block (7) is slidably connected to the inner side of the movable bin (5). The lower ends of the cleaning brush (8) and the baffle (9) extend to the inner side of the channel (31) through the through hole (32) and are respectively adapted to the left and right sides of the filter (4). The side of the baffle (9) and the inner side of the channel (31) are sealed and connected via a sealing strip.

5. A coal storage bin pressure relief and dust control device according to claim 1, characterized in that: A dust bag (101) is provided at the lower end of the dust collector (10), an exhaust port (102) is provided on the right side of the dust collector (10) extending to the outside of the dust control bin (2), and an output end of the vibration motor (11) extends to the inside of the dust control bin (2) and is adapted to fit the dust bag (101).

6. A coal storage bin pressure relief and dust control device according to claim 1, characterized in that: The collecting box (12) and the inner side of the dust control bin (2) are slidably connected and mutually adapted, the front side of the collecting box (12) extends to the outer side of the dust control bin (2) and is fixedly mounted with a sealing cover (121), and the sealing cover (121) and the front side of the dust control bin (2) are sealed and connected.

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