A coal chute unblocking structure

Abstract

This utility model discloses a coal chute unblocking structure, including a coal chute forming a coal falling channel. A cleaning assembly is installed on the coal chute, comprising a driving component, a blowing component, and a rotating scraper. The driving component includes a drive motor fixed to the outer periphery of the coal chute, with its drive shaft extending into the coal falling channel. The rotating scraper is detachably connected to the drive shaft. The blowing component includes an air-blowing block fixed to the wall of the coal chute and partially located within the coal falling channel, with a rotating block mounted on the air-blowing block. This utility model has the following advantages and effects: by incorporating a cleaning assembly consisting of a blowing component and a scraper, the two components work together to effectively and directly clear coal blockages in the coal falling channel.

Description

Technical Field

[0001] This utility model relates to the field of coal chutes, and more specifically, it relates to a coal chute unblocking structure. Background Technology

[0002] Coal is mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus. The total of carbon, hydrogen, and oxygen accounts for more than 95% of the organic matter. It is a very important energy source and an important raw material for the metallurgical and chemical industries. It is classified into several types, including lignite, bituminous coal, anthracite, and semi-anthracite. Coal is also an important raw material for power generation.

[0003] In existing power plants, coal-fired power generation typically requires a conveyor system to transport the coal. However, coal clogging and adhesion to the pipe walls are common problems during pipeline transport, primarily occurring at the coal-facing faces of the chutes above and below the tee. The main cause of clogging is the impact of coal flow at the angle between the side and back of the chute. This impact changes the flow direction, reducing the kinetic energy of the coal. Furthermore, the high-angle impact, especially with high moisture content, causes the coal to adhere directly to the chute walls, expanding the coal caking area and eventually leading to blockage. In transfer stations, clogging above the tee is mainly due to the coal seam and chute wall caking expanding into coal-to-coal caking, ultimately causing the conveyor belt to leak coal. Solving this problem requires regular cleaning of the coal flow and chute walls. Manual cleaning is extremely labor-intensive and necessitates system shutdown, disrupting coal feeding. Often, the blockage is completely sealed off, leading to a forced shutdown for cleaning.

[0004] Therefore, there is an urgent need for a cleaning mechanism that can effectively clear coal blockages. Utility Model Content

[0005] This utility model provides a structure for clearing blockages in coal chutes, aiming to solve the problem of coal blockage in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal chute unblocking structure, comprising a coal chute forming a coal chute channel, characterized in that: a cleaning assembly is provided on the coal chute, the cleaning assembly comprising a driving component, a blowing component, and a rotating scraper, the driving component comprising a driving motor, the driving motor being fixed to the outer periphery of the coal chute, the driving shaft of the driving motor extending into the coal chute channel, the rotating scraper being detachably connected to the driving shaft, the blowing component comprising an air blowing block, the air blowing block being fixed to the wall of the coal chute and partially located within the coal chute channel, and the air blowing block being provided with a rotating block.

[0007] This invention has the following effects: By incorporating a cleaning component, a pulsed high-pressure pneumatic ring-cutting and purging cleaning element, and a rotating scraper, this structure utilizes compressed air as a medium. The compressed air is blown out through the nozzle of the blowing element, and the energy stored in the compressed air is converted into kinetic energy, causing the airflow to spray outwards along the inner wall of the silo. The rapidly sprayed airflow creates shearing force between the inner wall of the silo and the accumulated coal, which can effectively cut and separate the accumulated coal with air, eliminating the adhesion of the accumulated coal to the wall surface. At the same time, the airflow blown upwards from the nozzle removes the accumulated coal from the wall surface, achieving the effect of preventing and clearing blockages. Furthermore, a rotating scraper is installed at the lower end, which slowly rotates on the flat wall surface (one revolution every 5-8 seconds) to cut the accumulated coal, causing the accumulated coal to flow downwards under the action of gravity.

[0008] The present invention further comprises: the rotating block includes a rotating cavity, the blowing element includes an air pump, the rotating cavity is connected to the rotating block and the rotating block is connected to the air pump, the rotating block forms a limiting cover, and an air blowing gap is formed between the limiting cover and the rotating block.

[0009] The present invention has the following effects: the limiting cover is fitted to the inner wall of the coal chute, ensuring that the device itself will not accumulate coal, preventing coal from clogging the device, and is connected to the air pump to ensure the pressure of the gas when it leaves the nozzle.

[0010] The present invention is further characterized in that: the air-blowing gap connects the outside world with the rotating cavity, and the cross section of the air-blowing gap is inclined from the center of the rotating cavity outward.

[0011] The present invention is further characterized in that the air blowing gap is gradually curved outward from the center of the rotating block.

[0012] The present invention has the following effects: the inclined and curved design allows the device to rotate when blowing air, thereby achieving rotating air jet.

[0013] The present invention further comprises: the bottom of the rotating scraper is closely attached to the inner wall of the coal chute, the side of the rotating scraper facing away from the bottom has a first cut surface, and the rotating scraper is provided with reinforcing ribs.

[0014] The present invention has the following advantages: the first cutting surface can better clean the coal, and the reinforcing ribs can effectively ensure the strength of the rotating scraper itself.

[0015] The present invention further comprises: the first tangential surface is symmetrically arranged.

[0016] This invention has the following advantages: it can clear blockages by rotating in both directions, making it more practical and convenient.

[0017] The present invention further comprises: a connecting hole is formed on the rotating scraper; a connecting rod is provided on the drive motor to connect the drive shaft; the connecting rod passes through the connecting hole and fixes the rotating scraper in the coal falling channel; the rotating scraper forms a limiting groove communicating with the connecting hole; and a limiting part is formed on the connecting rod to cooperate with it.

[0018] The present invention has the following effects: the above structure enables the limiting groove to limit the limiting part, prevent the connecting rod from falling off, and ensure that the rotating scraper is fixed.

[0019] The present invention further includes a limiting ring, wherein the limiting groove is disposed in the limiting ring, the limiting ring is composed of two mutually rotating limiting buckles, and a limiting edge is formed on one side of the limiting ring.

[0020] This utility model has the following advantages: It is equipped with a limiting ring, which makes it easy to connect the scraper by passing it through the connecting hole. After the limiting ring is put on, the rotating scraper can be tightly attached to the coal chute to ensure fixation. No installation is required, which makes the product more convenient to use.

[0021] The present invention further comprises: a limiting block is formed on the limiting buckle, and a corresponding groove is provided on the rotating scraper.

[0022] This utility model has the following advantages: it is equipped with a limit block to limit the rotation of the scraper and the limit ring, ensuring the rotation of the scraper. The structure is simple and practical. Attached Figure Description

[0023] Figure 1 This is a structural diagram of an embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of the inner side of the pipe on the right side of the middle section; Figure 3 for Figure 1 Schematic diagram of the outer side of the pipe on the right side of the middle section; Figure 4 This is a perspective view of the rotating scraper of this utility model; Figure 5 This is a schematic diagram of the limiting cover structure of this utility model; Figure 6 This is an enlarged view of part A; Figure 7 This is a structural diagram of the second embodiment of the rotating scraper; Figure 8 This is a cross-sectional view of the limiting cover of this utility model.

[0024] In the diagram: 1. Coal chute; 2. Rotating scraper; 3. Drive motor; 4. Air blowing block; 5. Air pump; 41. Air blowing gap; 42. Limiting cover; 21. First cut surface; 22. Reinforcing rib; 23. Connecting hole; 24. Limiting groove; 6. Limiting ring; 61. Limiting edge; 62. Limiting block. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Reference Figures 1 to 8 The embodiments of this utility model will be further described below.

[0028] A coal chute unblocking structure includes a coal chute 1, which is Y-shaped (see attached document). Figure 1The coal chute 1 forms a coal falling channel. A cleaning assembly is provided on the coal chute 1. The cleaning assembly includes a driving component, a blowing component, and a rotating scraper 2. The driving component includes a driving motor 3, which is fixed to the outer periphery of the coal chute 1. The driving shaft of the driving motor 3 extends into the coal falling channel. The rotating scraper 2 is detachably connected to the driving shaft. The blowing component includes an air blowing block 4, which is fixed to the wall of the coal chute 1 and partially located in the coal falling channel. The air blowing block 4 is provided with a rotating block, so that the air blowing block 4 can rotate to clean the coal. This structure, equipped with a cleaning component, employs a pulsed high-pressure pneumatic ring-cutting and purging system with a rotating scraper. Using compressed air as a medium, the compressed air is blown out through the nozzle of the blower, converting its stored energy into kinetic energy. This causes the airflow to spray outwards along the inner wall of the silo. The rapidly ejected airflow creates shearing force between the silo's inner wall and the accumulated coal, effectively cutting and separating the coal and eliminating its adhesion to the wall surface. Simultaneously, the upward-blowing airflow from the nozzle removes the accumulated coal from the wall, achieving both anti-clogging and clogging effects. A rotating scraper is installed at the lower end, slowly rotating on the flat wall (one revolution every 5-8 seconds) to cut the accumulated coal, causing it to flow downwards under gravity. Positioning the rotating scraper at the lower end of the blower allows for more effective anti-clogging and cleaning, making it convenient to use.

[0029] The rotating block includes a rotating cavity, and the blowing component includes an air pump 5. The rotating cavity communicates with the rotating block, and the rotating block is connected to the air pump 5. The rotating block forms a limiting cover 42, and an air blowing gap 41 is formed between the limiting cover 42 and the rotating block. The limiting cover 42 is designed to fit snugly against the inner wall of the coal hopper 1, ensuring that the device itself does not accumulate coal and preventing coal blockage at the device. It is also connected to the air pump 5 to ensure the pressure of the gas when it leaves the nozzle.

[0030] The air-blowing gap 41 connects the outside world with the rotating cavity, and the cross section of the air-blowing gap 41 is inclined outward from the center of the rotating cavity.

[0031] The air-blowing gap 41 is gradually curved outward from the center of the rotating block. The inclined and curved design allows the device to rotate during air blowing, thus achieving rotating air spray.

[0032] The bottom of the rotating scraper 2 is in close contact with the inner wall of the coal chute 1. A first cutting surface 21 is formed on the side of the rotating scraper 2 facing away from the bottom. A reinforcing rib 22 is provided on the rotating scraper 2. The first cutting surface 21 can better clean the coal, and the reinforcing rib 22 can effectively ensure the strength of the rotating scraper 2 itself.

[0033] The first cut surface 21 is symmetrically arranged; it can rotate in both directions to clear blockages, making it more practical and convenient.

[0034] The rotating scraper 2 has a connecting hole 23, and the drive motor 3 is provided with a connecting rod that connects to the drive shaft. The connecting rod passes through the connecting hole 23 and fixes the rotating scraper 2 in the coal falling channel. The rotating scraper 2 has a limiting groove 24 that communicates with the connecting hole 23, and the connecting rod has a limiting part that cooperates with it. The above structure enables the limiting groove 24 to limit the limiting part, prevent the connecting rod from falling off, and ensure that the rotating scraper 2 is fixed.

[0035] The device includes a limiting ring 6, with a limiting groove 24 disposed on the limiting ring 6. The limiting ring 6 consists of two mutually rotating limiting buckles, and one side of the limiting ring 6 forms a limiting edge 61. The limiting ring 6 facilitates connection by passing the device through the connecting hole 23, and then fitting the limiting ring 6 onto the rotating scraper 2 to ensure fixation against the coal chute 1, eliminating the need for installation and making the product more convenient to use. During use, it can be connected via a connecting rod threaded into the connecting hole (see attached diagram). Figure 7 ).

[0036] The limiting buckle has a limiting block 62, and the rotating scraper 2 has a corresponding slot. The limiting block 62 limits the rotation of the scraper 2 and the limiting ring 6, ensuring the rotation of the scraper. The structure is simple and practical. In actual use, the above method effectively avoids installation and prevents the two from disengaging due to vibration. It can better connect the two and ensure fixation. Both methods can be used according to the situation, making it simpler and more convenient, and the application environment is wider.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A coal chute unblocking structure, comprising a coal chute forming a coal chutes, characterized in that: The coal chute is equipped with a cleaning assembly, which includes a drive component, a blowing component, and a rotating scraper. The drive component includes a drive motor, which is fixed to the outer periphery of the coal chute. The drive shaft of the drive motor extends into the coal chute channel. The rotating scraper is detachably connected to the drive shaft. The blowing component includes an air blowing block, which is fixed to the wall of the coal chute and partially located within the coal chute channel. The air blowing block is equipped with a rotating block.

2. The structure for clearing the blockage of a coal drop chute according to claim 1, characterized in that: The rotating block includes a rotating cavity, the blowing element includes an air pump, the rotating cavity is connected to the rotating block and the rotating block is connected to the air pump, the rotating block forms a limiting cover, and an air blowing gap is formed between the limiting cover and the rotating block.

3. The coal chute unblocking structure according to claim 2, characterized in that: The air-blowing gap connects the outside world with the rotating cavity, and the cross section of the air-blowing gap is inclined outward from the center of the rotating cavity.

4. A structure for clearing the blockage of a coal drop chute according to claim 3, characterized in that: The air-blowing gap is set so that it gradually bends outward from the center of the rotating block.

5. A structure for clearing the blockage of a coal drop chute according to claim 4, characterized in that: The bottom of the rotating scraper is in close contact with the inner wall of the coal chute, and a first cutting surface is formed on the side of the rotating scraper facing away from the bottom. Reinforcing ribs are provided on the rotating scraper.

6. A structure for clearing the blockage of a coal drop chute according to claim 5, characterized in that: The first tangential plane is symmetrically set.

7. The structure for clearing the blockage of a coal drop pipe according to claim 1, characterized in that: The rotating scraper has a connecting hole, and the drive motor is provided with a connecting rod that connects to the drive shaft. The connecting rod passes through the connecting hole and fixes the rotating scraper to the coal falling channel. The rotating scraper has a limiting groove that communicates with the connecting hole, and the connecting rod has a limiting part that cooperates with it.

8. A structure for clearing the blockage of a coal drop chute according to claim 7, characterized in that: It includes a limiting ring, the limiting groove is disposed in the limiting ring, the limiting ring is composed of two mutually rotating limiting buckles, and one side of the limiting ring forms a limiting edge.

9. A structure for clearing a coal chute blockage according to claim 8, characterised in that: The limiting buckle has a limiting block, and the rotating scraper has a corresponding slot.

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