Anti-blocking chute of mine belt-type transfer machine

Abstract

The utility model belongs to the technical field of mining equipment, concretely is a kind of anti - jamming chute of mining belt -type transfer machine, including tank body, the tail end of tank body is equipped with feed chute, the front end of feed chute is inserted into the tail end of tank body, and accommodating cavity is formed between the front end side wall of feed chute and the inboard wall of tank body, scraper is provided in accommodating cavity, the inboard wall and both side inboard wall of scraper are attached with the inner bottom wall of tank body, and the top end of scraper is connected with power device installed in the outside of tank body. The utility model can realize the dredging of chute and the cleaning of wet sticky material under the condition that transfer machine does not stop, solve the problem that existing technology needs to stop when dredging and cleaning chute.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology; specifically, it relates to an anti-clogging chute for a mining belt conveyor. Background Technology

[0002] The transfer chute is a crucial component in the bulk material conveying system of coal mines and other mining operations. Its main function is to connect two conveying devices (such as belt conveyors and scraper conveyors) and serve as a guiding and transfer channel. Its primary role is to receive materials (such as coal, ore, and grain) discharged from the previous device and guide them smoothly, centrally, and centeredly to the receiving point of the next device.

[0003] During the use of a chute, some of the wet, sticky material will slide smoothly down under gravity. However, the layer of wet, sticky material in direct contact with the chute wall will be subject to tremendous adhesion and friction. Especially when the coal contains clay, gangue, or other components, these materials will adhere tightly to the steel plate like mud. The falling material impacts the upper surface of the already adhered wet, sticky material layer, and the impact force may not be sufficient to overcome the strong adhesion between the bottom layer of wet, sticky material and the steel plate. Therefore, the chute needs to be dredged and cleaned regularly or when it becomes clogged.

[0004] For example, the patent with publication number CN222906571U provides a chute anti-clogging device. Although it can clean the chute, the cleaning plate, cleaning brush, cleaning pad, cleaning nozzle and drying air head are all located inside the chute cavity during the cleaning process. This has the drawback that the belt conveyor must be stopped when cleaning the chute. In addition, the above-mentioned prior art has a complex structure and high use and maintenance costs. Utility Model Content

[0005] In view of this, the present invention provides an anti-clogging chute for a mining belt conveyor, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0006] To achieve the aforementioned objective, this utility model provides a mine belt conveyor anti-clogging chute, comprising a chute body, a feed chute installed at the tail end of the chute body, the front end of the feed chute being inserted into the tail end of the chute body, and a receiving cavity being formed between the front side wall of the feed chute and the inner side wall of the chute body, a scraper being provided in the receiving cavity, the scraper being in contact with the inner bottom wall and the inner walls on both sides of the chute body, and a power device installed outside the chute body being connected to the top end of the scraper.

[0007] Preferably, the side of the scraper that adheres to the inner wall of the tank is a flat surface, and the front end of the scraper is a complete bevel.

[0008] Preferably, the rear end face of the scraper is an inclined surface, and a plurality of sharp teeth are equidistantly arranged on the rear end face of the scraper. The bottom surface of the sharp teeth is a plane, and the opposing surfaces of two adjacent sharp teeth form a storage cavity with the rear end face of the scraper. A buffer plate that can move back and forth is arranged above the sharp teeth, and a spring that provides buffering force to the buffer plate is arranged inside the scraper. The buffer plate is located directly above the sharp teeth.

[0009] Preferably, the rear end connection of the two sides of the sharp tooth is a straight line, and a channel for material to pass through the storage cavity is formed between two adjacent buffer plates. The buffer plate has an inclined plate body parallel to the rear end connection of the two sides of the sharp tooth and a straight plate body parallel to the inner wall of the tank.

[0010] Preferably, the scraper includes a main body, a front scraping part, a rear scraping part, and a secondary plate body. The front scraping part and the rear scraping part are respectively disposed at the front and rear ends of the main body. The sharp teeth are disposed on the rear scraping part. The secondary plate body is fixedly disposed on the side of the main body away from the inner wall of the tank. The rear scraping part is fixedly installed at the rear end of the secondary plate body. A movable plate is fixedly connected to the front end of the buffer plate. The spring is disposed in the main body and connected to the movable plate. The movable plate is located between the secondary plate body and the main body.

[0011] Preferably, the sub-plate body is provided with a sleeve hole fitted onto the straight plate body, the main plate body is provided with a displacement cavity for the bottom end of the moving plate to move left and right, and the spring is disposed in the displacement cavity, and the moving plate always closes the top end of the displacement cavity.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The trough and the feed trough are combined to form a receiving cavity, which allows the scraper to be directly stored in the receiving cavity without affecting the flow of materials in the chute.

[0013] 2. By using scrapers that adhere to the inner wall of the trough, the belt conveyor can be used to unclog materials and clean wet and sticky materials from the inner wall of the trough without stopping the machine.

[0014] 3. With the buffer plate in place, when the scraper moves in the opposite direction to the material flowing in the chute, the buffer plate can effectively protect the scraper, improve the service life of the scraper, and not affect the flow of material in the chute.

[0015] 4. The scraper and power unit of the anti-clogging chute of the mining belt conveyor of this application have a simple overall structure, are easy to maintain, and have low cost. Attached Figure Description

[0016] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the cavity in this application; Figure 3 This is a schematic diagram of the scraper structure of this application; Figure 4 For this application Figure 3 Enlarged view of point A in the middle; Figure 5 For this application Figure 3 Enlarged view at point B in the middle; Figure 6 For this application Figure 3 A schematic diagram showing the split of the bottom wall portion of the tank corresponding to the middle scraper; Figure 7 For this application Figure 6 Enlarged view at point C; Figure 8 This is a schematic diagram illustrating the replacement of the buffer plate, moving plate, and spring in this application.

[0017] Reference numerals: 1-Tank body; 2-Feed trough; 3-Receiving cavity; 4-Scraper; 401-Main body; 402-Front scraper; 403-Rear scraper; 404-Sub-plate body; 5-Power unit; 6-Sharp tooth; 7-Storage cavity; 8-Buffer plate; 801-Inclined plate body; 802-Straight plate body; 9-Spring; 10-Channel; 11-Moving plate; 12-Sleeve hole; 13-Displacement cavity. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figures 1 to 8 As shown, this embodiment provides a mine belt conveyor anti-blocking chute, including a trough body 1, a feed chute 2 installed at the tail end of the trough body 1, the front end of the feed chute 2 being inserted into the tail end of the trough body 1, and a receiving cavity 3 being formed between the front side wall of the feed chute 2 and the inner side wall of the trough body 1, and the outer wall surface of the feed chute 2 being fixedly connected to the outer wall surface of the trough body 1 by a mounting plate.

[0020] A scraper 4 is installed inside the receiving cavity 3. The scraper 4 is in contact with the inner bottom wall and the inner walls on both sides of the tank body 1. A power device 5 installed outside the tank body 1 is connected to the top of the scraper 4. The power device 5 includes a motor and a screw. The motor is mounted on the outer wall of the tank body 1 and is rotatably mounted on the outer wall of the tank body 1. The screw is threadedly engaged with the top of the scraper 4. A slide rod is slidably fitted onto the top of the scraper 4 opposite to the screw, and the slide rod is fixedly installed on the tank body 1.

[0021] In the initial state, the scraper 4 is housed in the receiving cavity 3, and the chute is used for material flow. During the material flow process, by activating the power unit 5, the power unit 5 drives the scraper 4 to move forward from the receiving cavity 3. As the scraper 4 moves along the inner wall of the trough 1, it scrapes away the wet and sticky material adhering to the inner wall of the trough 1, thereby cleaning the trough 1 and achieving the effect of preventing chute blockage.

[0022] As the scraper 4 moves backward into the receiving cavity 3, it can perform secondary scraping on the inner wall of the tank 1, thereby improving the scraping effect on the wet and sticky materials adhering to the inner wall of the tank 1 and improving the cleaning effect on the inner wall of the chute.

[0023] In a relatively specific embodiment, the side of the scraper 4 that adheres to the inner wall of the tank 1 is flat, and the front end of the scraper 4 is a complete inclined surface. During the scraping of wet and sticky materials by the scraper 4, the inclined surface of the scraper 4 can guide the wet and sticky materials away from the inner wall of the tank 1, thereby improving the cleaning effect on the wet and sticky materials.

[0024] In a relatively specific embodiment, the rear end face of the scraper 4 is an inclined surface, and a plurality of sharp teeth 6 are equidistantly arranged on the rear end face of the scraper 4. The bottom surface of the sharp teeth 6 is a plane, and the opposite surfaces of two adjacent sharp teeth 6 form a storage cavity 7 with the rear end face of the scraper 4. A buffer plate 8 that can move back and forth is arranged above the sharp teeth 6, and a spring 9 that provides buffering force to the buffer plate 8 is arranged inside the scraper 4. The buffer plate 8 is located directly above the sharp teeth 6.

[0025] Spring 9 applies a rearward supporting force to buffer plate 8, thereby providing a buffering force for buffer plate 8. In order to prevent the rear end of scraper 4 from being impacted by the material flowing in the chute during the process of scraper 4 returning to the receiving cavity 3, buffer plate 8 is used to directly contact the material instead of scraper 4, which can achieve the effect of protecting scraper 4 and thus extend the service life of scraper 4.

[0026] The rear end connection of the two sides of the sharp tooth 6 is a straight line, and a channel 10 for material to pass through the storage cavity 7 is formed between two adjacent buffer plates 8. The buffer plate 8 has an inclined plate body 801 parallel to the rear end connection of the two sides of the sharp tooth 6 and a straight plate body 802 parallel to the inner wall surface of the tank 1.

[0027] To prevent the wet and sticky material scraped by the scraper 4 from clogging between the buffer plate 8 and the scraper 4, thus preventing the buffer plate 8 from properly buffering the displacement and causing the wet and sticky material to accumulate between the scraper 4 and the buffer plate 8, multiple sharp teeth 6 are set. On the one hand, this prevents the rear ends of the scraper 4 from being on the same straight line. On the other hand, the two inclined surfaces of the sharp teeth 6 have a guiding effect on the wet and sticky material, so that the material will converge into the accumulation chamber 7 during the scraping process of the scraper 4. After the material converges, the wet and sticky material leaves the accumulation chamber 7 through the channel 10.

[0028] The rear end face of the buffer plate 8 is set as an inclined plate body 801, so that when the material impacts the buffer plate 8, the material contacts the top surface of the inclined plate body 801, allowing the material to pass smoothly through the scraper 4, avoiding material blockage. In addition, as the material passes through the top of the scraper 4, it can carry away the collapsible material that moves from the channel 10 to the top of the scraper 4, improving the discharge effect of collapsible material.

[0029] In a relatively specific embodiment, the scraper 4 includes a main body 401, a front scraping part 402, a rear scraping part 403, and a secondary plate 404. The front scraping part 402 and the rear scraping part 403 are respectively disposed at the front and rear ends of the main body 401. The sharp teeth 6 are disposed on the rear scraping part 403. The secondary plate 404 is fixedly disposed on the side of the main body 401 away from the inner wall of the groove 1. The rear scraping part 403 is fixedly installed at the rear end of the secondary plate 404. The front end of the buffer plate 8 is fixedly connected to a movable plate 11. The spring 9 is disposed inside the main body 401 and is connected to the movable plate 11. The movable plate 11 is located between the secondary plate 404 and the main body 401.

[0030] The main body 401 has an open-top "U"-shaped structure, with one end connected to the power unit 5 and the other end connected to the slide rod. The secondary body 404 covers the top of the main body 401, making the top of the main body 401 a complete flat surface. When the scraper 4 moves in the opposite direction to the material, it makes it easier for the material to pass through the scraper 4 and alleviates the phenomenon of wet and sticky material adhering to the top of the scraper 4.

[0031] The movable plate 11 is enclosed by the main plate 401 and the secondary plate 404, which allows the movable plate 11 and the spring 9 to better isolate dust and wet sticky materials, thereby ensuring the long-term effectiveness of the buffer plate 8's buffering function.

[0032] The secondary plate 404 has a sleeve hole 12 that fits onto the straight plate 802. The main plate 401 has a displacement cavity 13 for moving the bottom end of the movable plate 11 from left to right, and a spring 9 is disposed inside the displacement cavity 13. The movable plate 11 always closes the top end of the displacement cavity 13. The movable plate 11 has a through hole, and a connecting rod passes through the through hole. The two ends of the connecting rod are fixed to the side wall of the displacement cavity 13, and the connecting rod passes through the spring 9.

[0033] The secondary plate 404 and the movable plate 11 form a double barrier for the displacement cavity 13, preventing dust or wet, sticky materials from entering the displacement cavity 13 and affecting the buffering effect. During the movement of the buffer plate 8, the straight plate 802 moves within the sleeve hole 12. The sleeve hole 12 can prevent dust or wet, sticky materials from entering the gap between the secondary plate 404, the movable plate 11, and the main plate 401 along the straight plate 802, thus improving the isolation effect.

[0034] In summary, the scraper 4 of this application is set to conform to the inner wall of the trough 1, and in the initial state, the scraper 4 is located in the receiving cavity 3, isolated from the material flowing in the trough 1, and does not affect the material conveying. During the cleaning of the chute, there is no need to stop the machine; the scraper 4 can be directly driven by the power unit 5 to move back and forth along the inner wall of the trough 1, effectively cleaning the wet and sticky material adhering to the inner wall of the trough 1, and achieving the effect of preventing chute blockage.

[0035] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A clog-resistant chute for a mining belt conveyor, comprising a chute body (1), characterized in that, The tail end of the trough (1) is equipped with a feeding trough (2). The front end of the feeding trough (2) is inserted into the tail end of the trough (1). The front side wall of the feeding trough (2) and the inner side wall of the trough (1) form a receiving cavity (3). A scraper (4) is provided in the receiving cavity (3). The scraper (4) is attached to the inner bottom wall and the inner walls on both sides of the trough (1). The top end of the scraper (4) is connected to a power device (5) installed outside the trough (1).

2. The anti-clogging chute for a mining belt conveyor as described in claim 1, characterized in that, The scraper (4) has a flat side that is in contact with the inner wall of the groove (1), and the front end of the scraper (4) is a complete inclined surface.

3. The anti-clogging chute for a mining belt conveyor as described in claim 1, characterized in that, The rear end face of the scraper (4) is an inclined surface. Multiple sharp teeth (6) are equidistantly arranged on the rear end face of the scraper (4). The bottom surface of the sharp teeth (6) is a plane. The opposite surfaces of two adjacent sharp teeth (6) form a storage cavity (7) with the rear end face of the scraper (4). A buffer plate (8) that can move back and forth is arranged above the sharp teeth (6). A spring (9) that provides buffering force to the buffer plate (8) is arranged inside the scraper (4). The buffer plate (8) is located directly above the sharp teeth (6).

4. The anti-clogging chute for a mining belt conveyor as described in claim 3, characterized in that, The rear end connection of the two sides of the sharp tooth (6) is a straight line, and a channel (10) for material to pass through the storage cavity (7) is formed between two adjacent buffer plates (8). The buffer plate (8) has an inclined plate (801) parallel to the rear end connection of the two sides of the sharp tooth (6) and a straight plate (802) parallel to the inner wall of the trough (1).

5. A mine belt conveyor anti-blockage chute as described in claim 4, characterized in that, The scraper (4) includes a main body (401), a front scraping part (402), a rear scraping part (403), and a secondary plate (404). The front scraping part (402) and the rear scraping part (403) are respectively disposed at the front and rear ends of the main body (401). The sharp teeth (6) are disposed on the rear scraping part (403). The secondary plate (404) is fixedly disposed on the side of the main body (401) away from the inner wall of the groove (1). The rear scraping part (403) is fixedly installed at the rear end of the secondary plate (404). The front end of the buffer plate (8) is fixedly connected to a moving plate (11). The spring (9) is disposed inside the main body (401) and is connected to the moving plate (11). The moving plate (11) is located between the secondary plate (404) and the main body (401).

6. The anti-clogging chute for a mining belt conveyor as described in claim 5, characterized in that, The sub-plate (404) is provided with a sleeve hole (12) fitted onto the straight plate (802), and the main plate (401) is provided with a displacement cavity (13) for the bottom end of the moving plate (11) to move left and right. The spring (9) is located in the displacement cavity (13), and the moving plate (11) always closes the top end of the displacement cavity (13).

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