Bulk material cleaning device for funnel of electro-hydraulic sealing-tape machine

Abstract

A bulk material cleaning device for a hopper of an electro-hydraulic sealing-tape machine belongs to the technical field of industrial safety, environmental protection facility automation and intelligent sensing, and comprises a scraper blade, a shaft body, a crank mechanism and an electro-hydraulic push rod, and is mounted at an inclined material receiving plate of a lower hopper of the sealing-tape machine; the linear reciprocating motion of the electric-hydraulic push rod drives the shaft body and the scraping plate to swing on the inner wall of the material receiving plate through the crank mechanism. And two positioning switches for ensuring that the scraping plate swings between two limit positions are arranged on the material receiving plate. One positioning switch is located on one side of the material receiving plate, the length direction of the scraper is parallel to the material flow direction, and it is guaranteed that the position of the scraper does not affect falling of bulk materials to the material receiving plate. The other positioning switch is located on the joint edge of the material receiving plate and the chute, the length direction of the scraper is perpendicular to the material flow direction, and the scraper can scrape bulk materials to the chute to be converged with the main material flow. Labor cost can be greatly reduced, timed automatic cleaning is set according to production experience, the number and workload of post workers are reduced, and the environment-friendly requirement of no bulk material accumulation can be met.

Description

Technical Field

[0001] This invention belongs to the field of industrial safety, environmental protection facility automation and intelligent sensing technology, specifically relating to an electro-hydraulic conveyor belt machine hopper material cleaning device. Background Technology

[0002] As the main equipment for material transportation and transfer in sintering plants, conveyor belts typically operate at rates exceeding 90%. However, due to the high moisture content of materials in sintering plants, the problem of loose material generated by friction between the funnel-shaped rollers at the head of the conveyor belt and the return belt surface is particularly serious and has long plagued on-site production and management personnel. In recent years, with increasingly stringent environmental protection requirements, solving this problem has become even more urgent. Traditional methods for solving this problem mainly include the following three: Method 1: For example Figures 3-4 As shown, a bulk material funnel is set in the feed roller area of ​​the conveyor head to transport the bulk material in the feed roller area to the receiving conveyor below. Disadvantage: Due to the limitations of the sintered material properties, the inclination angle of the conveyor funnel and chute used is generally required to be less than or equal to 60°. Therefore, this method is usually used for parallel material delivery relationships (the feed conveyor and the receiving conveyor are arranged parallel to each other in the projection plane). It is difficult to apply this method for perpendicular material delivery relationships (the feed conveyor and the receiving conveyor are arranged perpendicularly in the projection plane).

[0003] Method Two: Figure 5 As shown, the head funnel of the conveyor belt is enlarged so that its lower funnel covers the area of ​​the reinforcing roller. Disadvantages: Due to the limitations of the sintering material properties, the inclination angle of the conveyor belt funnel and chute is generally required to be less than or equal to 60°. Enlarging the lateral dimension of the funnel will inevitably increase the funnel height, thereby increasing the material delivery height and workshop height, which will adversely affect process layout, dust removal, equipment use, and construction investment.

[0004] Method 3: For example Figure 6 As shown, the angle of the lower hopper of the conveyor belt is made smaller (less than the usual design angle of 60°), and a vibrator is installed on the side wall. Disadvantage: Due to the large distance between the top roller and the head roller, the angle of the lower hopper of the conveyor belt needs to be very small (usually less than 50°) to include the material distribution area of ​​the top roller. Under this angle condition, the vibrator hitting the side wall cannot force the material to overcome friction and flow into the main material flow, resulting in minimal effect. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes an electro-hydraulic conveyor belt hopper material cleaning device, comprising a scraper, a shaft, a crank mechanism, and an electro-hydraulic push rod. The device is installed at the inclined receiving plate of the lower hopper of the conveyor belt. The linear reciprocating motion of the electro-hydraulic push rod drives the shaft and scraper to oscillate on the inner wall of the receiving plate via the crank mechanism.

[0006] Furthermore, a hard rubber plate is provided at the point where the scraper is close to the receiving plate.

[0007] Furthermore, the receiving plate is equipped with two positioning switches to ensure that the scraper swings between two extreme positions.

[0008] Furthermore, a positioning switch is located on one side of the receiving plate, and the length direction of the scraper is parallel to the material flow direction, ensuring that the position of the scraper does not affect the loose material falling onto the receiving plate.

[0009] Furthermore, another positioning switch is located at the edge where the receiving plate meets the chute, with the scraper's length direction perpendicular to the material flow direction, ensuring that at this point, the scraper can scrape the loose material into the chute and merge it with the main material flow.

[0010] The beneficial effects of this invention are as follows: 1. This invention is not limited to the material delivery relationship of the tape machine; it can be used for both forward and perpendicular or oblique material delivery.

[0011] 2. This invention does not require increasing the height of the funnel, and will not produce many adverse effects caused by increasing the height of the funnel.

[0012] 3. This invention enables the flow of bulk materials into the main material flow while keeping the angle of the lower hopper of the conveyor belt very small (less than 60°), without the need for additional transportation systems. It is convenient and simple, and can be used for both new construction projects and environmental renovation projects with low modification difficulty.

[0013] 4. This invention can significantly reduce labor costs. By setting up timed automatic cleaning based on production experience, the number of workers and their workload can be reduced.

[0014] 5. This invention enables the achievement of environmental protection requirements without the accumulation of loose materials. Attached Figure Description

[0015] Figure 1 This is a front view of the electro-hydraulic conveyor belt machine hopper material cleaning device of the present invention.

[0016] Figure 2 This is a side view of the electro-hydraulic conveyor belt machine hopper material cleaning device of the present invention.

[0017] Figure 3 This is a schematic diagram of the forward material delivery relationship in the existing technical method one.

[0018] Figure 4 This is a schematic diagram of the vertical material delivery relationship in the existing technical method one.

[0019] Figure 5 This is a schematic diagram of the structure of the existing technical method two.

[0020] Figure 6This is a schematic diagram of the structure of the existing technical method three.

[0021] 1. Scraper; 2. Shaft; 3. Crank mechanism; 4. Electro-hydraulic actuator; 5. Hard rubber sheet; 6. Positioning switch; 7. Chute; 8. Feeding conveyor belt; 9. Receiving conveyor belt; 10. Surface roller; 11. Vibrator. Detailed Implementation

[0022] To make the technical means and objectives of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. An electro-hydraulic conveyor belt hopper material cleaning device includes a scraper 1, a shaft 2, a crank mechanism 3, and an electro-hydraulic push rod 4. The device is installed at the inclined receiving plate of the lower hopper of the conveyor belt. The linear reciprocating motion of the electro-hydraulic push rod 4 drives the shaft 2 and the scraper 1 to swing on the inner wall of the receiving plate through the crank mechanism 3.

[0023] The scraper 1 is provided with a hard rubber plate 5 near the receiving plate.

[0024] The receiving plate is equipped with two positioning switches 6 to ensure that the scraper 1 swings between two extreme positions.

[0025] One of the positioning switches 6 is located on one side of the receiving plate, and the length direction of the scraper 1 is parallel to the material flow direction, so as to ensure that the position of the scraper 1 does not affect the falling of loose material onto the receiving plate.

[0026] Another positioning switch 6 is located at the edge where the receiving plate and the chute 7 meet. The length direction of the scraper 1 is perpendicular to the material flow direction, ensuring that at this point, the scraper 1 can scrape the loose material into the chute 7 and merge it with the main material flow.

[0027] The device of this invention is installed at the inclined receiving plate of the lower funnel of the conveyor belt. During operation, the linear reciprocating motion of the electro-hydraulic push rod 4 drives the shaft 2 and scraper 1 to swing within a certain angle range on the inner wall of the receiving plate through the crank mechanism 3. A hard rubber plate 5 is provided near the receiving plate of the scraper 1 to protect the funnel body to the maximum extent while scraping the loose material. The device is equipped with two positioning switches 6 to ensure that the scraper 1 swings between two extreme positions: one positioning switch 6 is located on one side of the receiving plate, with the length direction of the scraper 1 parallel to the material flow direction, ensuring that the position of the scraper 1 does not affect the loose material falling to the receiving plate; the other positioning switch 6 is located at the junction of the receiving plate and the chute 7, with the length direction of the scraper 1 perpendicular to the material flow direction, ensuring that at this point, the scraper 1 can scrape the loose material into the chute 7 and merge with the main material flow.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for cleaning loose materials from a hopper of an electro-hydraulic conveyor belt machine, characterized in that, The device includes a scraper (1), a shaft (2), a crank mechanism (3), and an electro-hydraulic push rod (4). The device is installed at the inclined receiving plate of the lower funnel of the conveyor belt. The linear reciprocating motion of the electro-hydraulic push rod (4) drives the shaft (2) and the scraper (1) to swing on the inner wall of the receiving plate through the crank mechanism (3).

2. The electro-hydraulic conveyor belt machine hopper material cleaning device as described in claim 1, characterized in that, The scraper (1) is provided with a hard rubber plate (5) near the receiving plate.

3. The electro-hydraulic conveyor belt machine hopper material cleaning device as described in claim 1, characterized in that, The receiving plate is equipped with two positioning switches (6) to ensure that the scraper (1) swings between two extreme positions.

4. The electro-hydraulic conveyor belt machine hopper material cleaning device as described in claim 3, characterized in that, A positioning switch (6) is located on one side of the receiving plate. The length direction of the scraper (1) is parallel to the material flow direction, ensuring that the position of the scraper (1) does not affect the falling of loose material onto the receiving plate.

5. The electro-hydraulic conveyor belt machine hopper material cleaning device as described in claim 4, characterized in that, Another positioning switch (6) is located at the junction of the receiving plate and the chute (7). The length direction of the scraper (1) is perpendicular to the material flow direction, ensuring that at this point, the scraper (1) can scrape the loose material into the chute (7) and merge with the main material flow.

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