Separated coal bunker

Abstract

The utility model relates to the technical field of coal conveying equipment, and discloses a separated coal bunker which comprises a coal bunker body, a partition plate is arranged in the middle of the coal bunker body in the vertical direction, airflow cavities communicated with an air source pipeline are formed in the two sides of the partition plate, and flow guide covers are movably arranged on the side faces of the airflow cavities. The end, located outside the airflow cavity, of the flow guide cover is arranged in a sealed mode, airflow jet holes are formed in the side face of the flow guide cover, the airflow jet holes are located in the airflow cavity in the initial state, and the sealed end face of the flow guide cover seals the side wall of the airflow cavity. According to the coal storage device, high-quality coal and low-quality coal can be stored at the same time, the smoothness of materials during falling can be improved, the probability of material blocking is reduced, and smooth operation of work is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coal conveying equipment, in particular to a bin coal bunker. Background Art

[0002] In order to meet the requirements of power market regulation and ensure the fundamental interests of power plants, units need to have the ability of deep peak shaving to meet the electricity demand in different periods; due to the large differences in the combustion capacity and price difference of different coal qualities, in order to save costs, generally inferior coal or a mixture of superior and inferior coal is used for production during low or flat electricity consumption periods, and high-quality coal is used for production during peak electricity consumption periods; however, the existing coal bunkers can only use one kind of coal quality for production and cannot be flexibly switched. If it is necessary to switch to high-quality coal during peak electricity consumption, the coal quality needs to be converted, which will consume a large amount of human and material resources, not only increasing costs but also reducing work efficiency.

[0003] Based on this, many production workshops divide the internal space of the coal bunker by setting a partition in the middle of the coal bunker, so as to meet the flexible switching between high-quality coal and inferior coal; however, each storage space inside the coal bunker after binning is restricted, which further increases the probability of blockage during the falling process of coal material and affects the normal progress of work. Therefore, there is an urgent need for a bin coal bunker that can store high-quality coal and inferior coal separately while reducing the probability of material blockage. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bin coal bunker that can store high-quality coal and inferior coal simultaneously, improve the smoothness of material falling, reduce the probability of blockage, and ensure the smooth progress of work.

[0005] The utility model adopts the following technical solutions:

[0006] A bin coal bunker includes a coal bunker body. A partition is vertically arranged in the middle of the coal bunker body. Air flow chambers communicated with a gas source pipeline are arranged on both sides of the partition. A flow guide cover is movably arranged on the side surface of the air flow chamber. One end of the flow guide cover located outside the air flow chamber is sealed. Air flow injection holes are formed on the side surface of the flow guide cover. In the initial state, the air flow injection holes are located inside the air flow chamber, and the sealed end surface of the flow guide cover seals the side wall of the air flow chamber.

[0007] Preferably, the air flow chamber is arranged in the middle and lower part of the partition.

[0008] Preferably, the flow guide cover is of a cylindrical structure.

[0009] Preferably, a plurality of limit sleeves are communicated and arranged on one side of the air flow chamber away from the partition, and the flow guide cover is movably located inside the limit sleeves.

[0010] Preferably, the size of the sealed end of the fairing is larger than the opening size of the limit sleeve.

[0011] Preferably, the end of the fairing is provided with a conical structure with a tip.

[0012] Preferably, a plurality of air injection holes are arranged at intervals along the side surface of the fairing.

[0013] Preferably, the size of the inlet end of the air injection hole located inside the fairing is smaller than the size of the outlet end located outside the fairing.

[0014] Preferably, multiple groups of reinforcing bars are arranged vertically along both sides of the partition plate.

[0015] Preferably, the reinforcing bar is of a triangular prism structure.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model can divide the inside of the coal bunker body into storage spaces for high-quality coal and low-quality coal through the partition plate, which is convenient for subsequent flexible conversion according to needs, reduces the consumption of human and material resources, and ensures work efficiency; By arranging an air flow chamber on the partition plate and movably arranging a fairing on the air flow chamber, high-pressure air can be regularly introduced into the bunker through the air flow chamber and the fairing during the feeding process to provide assistance for the falling of the coal material, reduce the probability of coal material blockage, and ensure the smooth progress of the work. Description of the Drawings

[0017] Figure 1 is the front view of the embodiment of the present application;

[0018] Figure 2 is the structural schematic diagram of the partition plate of the embodiment of the present application;

[0019] Figure 3 is the structural schematic diagram of the fairing of the embodiment of the present application. Detailed Embodiments

[0020] The following will clearly and completely describe the present utility model in conjunction with the drawings and embodiments:

[0021] Such as Figures 1 to 3As shown in the figure, a bin - type coal bunker of the present utility model includes a coal bunker body 1. A partition 2 is vertically arranged in the middle of the coal bunker body 1. The partition 2 can be made of steel plate and is connected to the inner wall of the coal bunker body 1 on both sides by welding. Air - flow chambers 3 are arranged on both sides of the partition 2. Connecting air holes 4 are arranged on the air - flow chambers 3. The connecting air holes 4 are conductively connected to a gas - source pipeline 5 located outside the coal bunker body 1. The gas - source pipeline 5 is connected with a pulse valve. A buffer tank is connected to the pulse valve, and the buffer tank is connected to the gas source, so as to convey gases with different pressures into the air - flow chambers 3 as needed to assist the falling of coal materials. A flow - guiding cover 6 is movably arranged on the side surface of the air - flow chamber 3. A plurality of flow - guiding covers 6 are arranged along the length direction of the air - flow chamber 3. One end of the flow - guiding cover 6 located outside the air - flow chamber 3 is sealed. Air - flow injection holes 7 are opened on the side surface of the flow - guiding cover 6. In the initial state, the air - flow injection holes 7 are located inside the air - flow chamber 3. The sealed end surface of the flow - guiding cover 6 seals the side wall of the air - flow chamber 3 to prevent coal materials from falling into the inside of the air - flow chamber 3. During operation, with the introduction of air flow, the flow - guiding cover 6 will be pushed out. At this time, the air - flow injection holes 7 will move out of the air - flow chamber 3. High - pressure air flow enters between the coal materials through the air - flow injection holes 7, playing a role in loosening the coal materials and preventing the situation that the lower discharge port of the coal bunker body 1 is blocked due to the tight accumulation of coal materials. After the coal materials are dredged by the air flow, the gas source is cut off. Since when the coal bunker body 1 is filled with materials, the accumulation and compression of the coal materials will generate a certain internal pressure. This pressure mainly comes from the mutual extrusion between the coal materials and the action of gravity, resulting in a relatively high - pressure environment inside the coal bunker body 1. Under the action of the pressure difference, the flow - guiding cover 6 resets.

[0022] Furthermore, since the clogging points inside the coal bunker body 1 are usually at the lower positions, in this embodiment, the air - flow chambers 3 are arranged in the middle and lower parts of the partition 2. In addition, the flow - guiding cover 6 is of a cylindrical structure. A plurality of air - flow injection holes 7 are arranged at intervals along the side surface of the flow - guiding cover 6, and the size of the inlet end of each air - flow injection hole 7 located inside the flow - guiding cover 6 is smaller than the size of its outlet end located outside the flow - guiding cover 6, so as to increase the scope of air - flow dredging.

[0023] In this embodiment, a plurality of limiting sleeves 8 are provided in a conducting manner on the side of the air flow chamber 3 away from the partition plate 2, and the flow guiding cover 6 is movably located within the limiting sleeves 8; the provision of the limiting sleeves 8 can appropriately extend the length of the flow guiding cover 6, increase the area of air flow injection, and improve the dredging effect on the coal material; specifically, a guiding rod 9 is provided at the open end of the flow guiding cover 6, a bracket for the guiding rod to movably pass through is provided within the limiting sleeve 8, and a limiting plate 10 is provided on the guiding rod 9 to prevent the flow guiding cover 6 from disengaging from the limiting sleeve 8; in addition, the size of the sealed end of the flow guiding cover 6 is larger than the opening size of the limiting sleeve 8 to ensure that the end of the limiting sleeve 8 is sealed in the initial state and prevent the entry of coal material; the end of the flow guiding cover 6 is preferably provided with a conical structure with a tip, so that under the thrust of the air flow, the flow guiding cover 6 can smoothly enter the coal material layer, reduce the resistance of the flow guiding cover 6 entering the coal material layer, and realize the injection of air flow within the coal material layer to complete the loosening of the coal material layer.

[0024] Furthermore, multiple groups of reinforcing rods 11 are provided along the vertical direction on both sides of the partition plate 2 to increase the structural strength of the partition plate 2 and prevent it from deforming under the pressure of the coal material. The reinforcing rods 11 are preferably of a triangular prism structure, which can not only ensure its structural strength but also utilize the outer edges thereof to collide with the falling coal material, so that the coal material is broken up during the falling process. At the same time, the inclined surfaces on both sides of the edges of the reinforcing rods 11 can also provide flow guidance for the falling coal material.

[0025] When the present utility model is in use, a high-pressure gas source is introduced into the air flow chamber 3. Under the push of the high-pressure gas source, the flow guiding cover 6 smoothly moves out of the protective sleeve, and the air flow is ejected from the air flow injection holes 7 and acts on the surrounding coal material to loosen the coal material, avoiding the situation of the coal material being tightly stacked and blocked, and ensuring the smooth falling of the coal material; by regularly introducing high-pressure air flow to dredge the coal material, the smoothness of the material feeding is ensured, and the cumbersome operation of dredging the inside of the coal bunker body 1 during shutdown is also avoided, reducing the consumption of manpower and material resources, lowering the cost, and having strong practicability.

Claims

1. A coal bunker with separate bunkers, characterized by: It includes a coal bunker body, a partition is arranged in the middle of the coal bunker body in the vertical direction, airflow chambers connected to the air source pipeline are arranged on both sides of the partition, a guide cover is movably arranged on the side of the airflow chamber, and the end of the guide cover located outside the airflow chamber is sealed, and an airflow injection hole is opened on the side of the guide cover. In an initial state, the airflow injection hole is located in the airflow chamber, and the sealed end face of the guide cover seals the side wall of the airflow chamber.

2. The coal bunker according to claim 1 is characterized in that: The airflow chamber is arranged at the middle and lower part of the partition.

3. The coal bunker according to claim 1 is characterized in that: The deflector cover is a cylindrical structure.

4. The coal bunker according to claim 3 is characterized by: A plurality of limiting sleeves are arranged on one side of the airflow chamber away from the partition, and the air guide cover is movably located in the limiting sleeves.

5. The coal bunker according to claim 4 is characterized in that: The size of the sealing end of the deflector cover is larger than the opening size of the limiting sleeve.

6. The coal bunker according to claim 3 is characterized by: The end of the deflector cover is configured as a conical structure with a pointed end.

7. The coal bunker according to claim 1 is characterized by: A plurality of airflow injection holes are arranged at intervals along the side surface of the air guide cover.

8. The coal bunker according to claim 1 is characterized by: The size of the inlet end of the airflow injection hole located on the inner side of the air guide cover is smaller than the size of the outlet end located on the outer side of the air guide cover.

9. The coal bunker according to claim 1, characterized in that: A plurality of groups of reinforcing rods are arranged on both sides of the partition along the vertical direction.

10. The coal bunker according to claim 9, characterized in that: The reinforcing rod is a triangular prism structure.

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