Dust collector for coal mill pulverizing

Abstract

The utility model provides a dust collector for coal mill pulverizing. The upper end of a pulser is connected with a pulse pipe, the pulse pipe is connected with a compressed gas storage bag, a pulverized coal conveying pipe is arranged on the front side of a dust collecting box, a negative pressure pipe is arranged on the rear side of the dust collecting box, and a negative pressure fan is arranged at the outer end of the negative pressure pipe; an inclined filter plate is arranged at the rear end in the dust collection box, can block pulverized coal from passing through and is located between the negative pressure pipe and the dust collection cloth bags, a partition plate is arranged at the bottom in the dust collection box, a plurality of penetrating openings are formed in the partition plate, one penetrating opening is formed under each row of dust collection cloth bags, and vertical plates are further arranged on the two sides of each penetrating opening. And the vertical plate is positioned between the two rows of dust collecting cloth bags. Through the design of the filter plate, pulverized coal can be effectively prevented from passing through, sedimentation and cleaning of the pulverized coal can be promoted under the action of inclination and a micro vibration motor, and the pulverized coal is prevented from entering a negative pressure pipe; and through the arrangement of the partition plate and the inclined plate, the structure in the dust collection box is more stable, meanwhile, the inclined plate can promote coal powder to move towards the powder outlet pipe, and the working efficiency of the dust collector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal processing equipment, in particular to a dust collector for coal grinding and pulverizing. Background Art

[0002] Coal pulverization is the process of transforming raw coal into pulverized coal through a series of processes. This process primarily involves preparing the raw coal, crushing, grinding, grading, and collecting it, ultimately transforming it into a fine powder suitable for specific applications. Coal pulverization is a key step in many industrial processes, particularly in power generation, where pulverized coal is widely used as a fuel.

[0003] The dust collector is a device used to collect coal powder. Existing dust collectors mostly use filter screens or bag-type dust collectors, but they also have some defects:

[0004] 1. The exhaust pipe of the existing dust collector will contain some coal dust. The coal dust discharged through the exhaust pipe not only causes environmental pollution, but also has the risk of explosion and combustion;

[0005] 2. The coal powder is transported from the conveying pipe to the dust collector by air flow. The air flow in the conveying pipe entering the dust collector may blow up the coal powder that has fallen in the distribution bin, affecting the normal collection of the coal powder. Utility Model Content

[0006] The utility model is based on the above technical problems and proposes a dust collector for coal grinding and pulverizing.

[0007] The dust collecting box is provided with a plurality of dust collecting bags arranged in an array, the dust collecting bag is provided with the pulser, the upper end of the pulser is connected to the pulse tube, and the pulse tube is connected to the compressed gas storage bag. The front side of the dust collecting box is provided with a coal dust conveying pipe, the rear side of the dust collecting box is provided with a negative pressure pipe, and the outer end of the negative pressure pipe is provided with a negative pressure fan; the rear end of the dust collecting box is provided with an inclined filter plate, which can block the coal dust from passing through, and the filter plate is located between the negative pressure pipe and the dust collecting bag; the bottom of the dust collecting box is provided with a partition, and the partition is provided with a plurality of through-openings, and each row of the dust collecting bags is provided with a through-opening directly below the dust collecting bag, and vertical plates are also provided on both sides of the through-opening, and the vertical plates are located between the two rows of dust collecting bags.

[0008] Preferably, the lower portion of the filter plate is tilted backward.

[0009] Preferably, the filter plate is movably mounted on the dust collecting box, and a micro vibration motor is provided on the rear side of the filter plate.

[0010] Preferably, a plurality of inclined plates are provided on the lower side of the partition, and the inclined plates are arranged on the rear side of each of the through openings.

[0011] Beneficial effects:

[0012] 1. The pulse generator is connected to the compressed gas storage bag, which can use compressed air to regularly back-blow the dust collection bag to achieve automatic unloading and reduce manual maintenance costs;

[0013] 2. The design of the filter plate can not only effectively block the passage of coal powder, but also promote the sedimentation and cleaning of coal powder under the action of tilting and micro vibration motor, preventing it from entering the negative pressure pipe;

[0014] 3. The setting of partitions and inclined plates makes the structure inside the dust collecting box more stable. At the same time, the inclined plates can also promote the movement of coal powder to the powder discharge pipe, thereby improving the working efficiency of the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shows a schematic structural diagram of the utility model;

[0016] Figure 2 Shown is the internal structure diagram of the present utility model. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] like Figure 1~Figure 2 The dust collector shown in the figure for coal grinding and pulverizing comprises: a dust box 1, a dust bag 6, and a pulser 7. The lower end of the dust box 1 is provided with a powder hopper 2 connected thereto, and the lower end of the powder hopper 2 is provided with a powder discharge pipe 3 connected thereto. The dust box 1 is provided with a plurality of dust bags 6 arranged in an array, and the dust bag 6 is provided with a pulser 7. The upper end of the pulser 7 is connected to a pulse tube 8, and the pulse tube 8 is connected to a compressed gas storage bag. The pulser 7 is connected to the compressed gas storage bag. Compressed air can be used to regularly back-blow the dust bag 6 to discharge the material, thereby realizing automatic discharge.

[0019] A coal powder conveying pipe 4 is provided on the front side of the dust collecting box 1. The coal powder in the conveying pipe 4 is conveyed by airflow. A negative pressure pipe 5 is provided on the rear side of the dust collecting box 1. A negative pressure fan is provided on the outer end of the negative pressure pipe 5. An inclined filter plate 9 is provided at the rear end of the dust collecting box 1. The filter plate 9 can block the coal powder from passing through. The filter plate 9 is located between the negative pressure pipe 5 and the dust collecting bag 6. A partition 10 is provided at the bottom of the dust collecting box 1. A plurality of through-openings 11 are provided on the partition 10. A through-opening 11 is provided directly below each row of dust collecting bags 6. Vertical plates 12 are also provided on both sides of the through-opening 11. The vertical plates 12 are located between the two rows of dust collecting bags 6.

[0020] As a further improvement, the lower part of the filter plate 9 is tilted backwards, which is conducive to the sliding and collection of coal powder.

[0021] As a further improvement, the filter plate 9 is movably mounted on the dust collecting box 1, and a micro vibration motor is provided on the rear side of the filter plate 9 to promote the falling of the coal powder through vibration to prevent clogging.

[0022] As a further improvement, a plurality of inclined plates 13 are provided on the lower side of the partition 10. The inclined plates 13 are arranged at the rear side of each through-hole 11 to guide the collected coal powder to fall smoothly and reduce the impact of the conveying airflow on the coal powder falling.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dust collector for coal pulverization, comprising: The dust collecting box is provided with a dust collecting bag and a pulser, and the lower end of the dust collecting box is provided with a powder hopper connected thereto, and the lower end of the powder hopper is provided with a powder discharge pipe connected thereto, and the dust collecting box is provided with a plurality of dust collecting bags arranged in an array, and the dust collecting bag is provided with the pulser, which is characterized in that the upper end of the pulser is connected to the pulse tube, and the pulse tube is connected to the compressed gas storage bag, the front side of the dust collecting box is provided with a coal powder conveying pipe, the rear side of the dust collecting box is provided with a negative pressure pipe, and the outer end of the negative pressure pipe is provided with a negative pressure fan; the rear end of the dust collecting box is provided with an inclined filter plate, which can block the coal powder from passing through, and the filter plate is located between the negative pressure pipe and the dust collecting bag, and the bottom of the dust collecting box is provided with a partition, and the partition is provided with a plurality of through-openings, and each row of the dust collecting bags is provided with a through-opening directly below, and vertical plates are also provided on both sides of the through-opening, and the vertical plates are located between the two rows of dust collecting bags.

2. The dust collector for coal pulverization according to claim 1, characterized in that: The lower part of the filter plate is inclined backward.

3. The dust collector for coal pulverization according to claim 1, characterized in that: The filter plate is movably mounted on the dust collecting box, and a micro vibration motor is provided on the rear side of the filter plate.

4. The dust collector for coal pulverization according to claim 1, characterized in that: A plurality of inclined plates are provided on the lower side of the partition, and the inclined plates are arranged on the rear side of each of the through openings.

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