Automatic unloading device of belt unloading trolley

Abstract

The utility model provides a kind of automatic unloading device of belt unloading trolley, it is characterized in that, including belt rack track, the belt rack track is equipped with belt unloading trolley, the side of belt rack track is equipped with multiple silos, the upper portion of the silo is equipped with electric telescopic link, the top of the electric telescopic link is equipped with inductive block, high-frequency radar material level meter for detecting the material level in the silo is equipped on the silo, proximity switch is equipped on belt unloading trolley, proximity switch is connected with controller, the controller is also connected with belt unloading trolley, electric telescopic link respectively.The utility model sets up multiple electric telescopic link corresponding with silo on the side of belt rack track, and inductive block that can be inducted with proximity switch on belt unloading trolley is equipped on the top of electric telescopic link, so that belt unloading trolley can be moved to the vicinity of the silo that needs to be charged in time, carries out charging operation, greatly saves manpower.

Description

Technical Field

[0001] This utility model belongs to the technical field of material transportation equipment, and relates to an automatic unloading device for a belt unloading trolley. Background Technology

[0002] In the material conveying and unloading operations of pyrometallurgical workshops, the belt conveyor unloading trolley plays a crucial role. Traditional unloading control methods often have many drawbacks, making it difficult to accurately grasp the material level in the silo, which easily leads to overflow. Overflow not only causes material waste but also buries the unloading trolley track with material, resulting in obstructed movement and affecting production efficiency.

[0003] The workshop uses conveyor belts as the charging belts for the converter system, replenishing the hoppers via unloading trolleys. The converter charging system has multiple hoppers, each fed by a conveyor belt unloading trolley. Due to the low level of automation in the charging system, converter charging is currently done manually on-site. Since the converter charging system is located above three converters, there is a significant amount of flue gas emitted during converter start-up, shutdown, and production. Prolonged exposure to this gas can cause health problems for workers. Furthermore, there are no hopper or level indicators for the hoppers, requiring frequent on-site checks during charging, thus increasing the workload. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic unloading device for a belt unloading trolley, addressing the problems existing in the prior art.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] An automatic unloading device for a belt conveyor unloading trolley, comprising:

[0007] A belt conveyor track, on which a belt unloading trolley is mounted;

[0008] Multiple hoppers are provided, which are located on one side of the belt conveyor track and arranged along the length of the belt conveyor track. Each hopper is equipped with an electric telescopic rod, and the top of the electric telescopic rod is equipped with a sensing block. Each hopper is equipped with a high-frequency radar level gauge for detecting the material level in the hopper.

[0009] A proximity switch, wherein the proximity switch is mounted on the belt unloading trolley and can move with the belt unloading trolley;

[0010] The controller is connected to the belt unloading trolley, the electric telescopic rod, and the proximity switch.

[0011] Furthermore, a Gray busbar is provided on one side of the belt conveyor track along the length of the belt conveyor track, and an antenna box that can move with the belt unloading trolley is provided on the Gray busbar and the belt unloading trolley.

[0012] Furthermore, a dust suction pipe is provided above the belt conveyor track along the length of the belt conveyor track. The dust suction pipe has multiple dust suction ports that correspond one-to-one with the material bins. A bag dust collector is provided at one end of the dust suction pipe.

[0013] Furthermore, an automatic door is provided at the dust suction port, and the automatic door is connected to the controller.

[0014] The beneficial effects of this utility model are as follows: multiple electric telescopic rods corresponding to the hoppers are set on one side of the belt conveyor track, and a sensing block that can be sensed by the proximity switch on the belt unloading trolley is set at the top of the electric telescopic rod, so that the belt unloading trolley can move to the vicinity of the hopper that needs to be filled in time for filling operation, which greatly saves manpower; and the operator can operate remotely, which effectively protects the health of the operator; a Gray busbar is set to calibrate the position of the belt unloading trolley to ensure accurate unloading into the hopper. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a control principle diagram of the present invention;

[0017] In the diagram, 1-belt frame track, 2-belt unloading trolley, 3-proximity switch, 4-controller, 5-hopper, 6-electric telescopic rod, 7-sensor block, 8-high frequency radar level gauge, 9-Gray busbar, 10-antenna box, 11-dust suction pipe, 12-dust suction port, 13-automatic door, 14-bag dust collector. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings:

[0019] like Figure 1 and 2As shown, an automatic unloading device for a belt conveyor unloading trolley includes a belt conveyor track 1, on which a belt unloading trolley 2 is mounted. The belt unloading trolley 2 can move along the length of the belt conveyor track 1. Both the belt conveyor track 1 and the belt unloading trolley 2 are conventional belt conveyor tracks and trolleys. The belt unloading trolley 2 is equipped with a proximity switch 3 that moves with it, and the proximity switch 3 is connected to a controller 4, which is a PLC controller or other conventional controller. Multiple hoppers 5 are located along the length of the belt conveyor track 1 on one side. An electric telescopic rod 6 is mounted on the upper part of each hopper 5, and a sensing block 7 is located at the top of the electric telescopic rod 6. When the electric telescopic rod 6 extends, it moves the sensing block 7 upward, raising its height so that it can be sensed by the proximity switch 3. When the electric telescopic rod 6 retracts, the sensing block 7 is at a lower position and cannot be sensed by the proximity switch 3. The proximity switch 3 uses a sensing method, which simplifies the control process. The proximity switch 3 only needs to detect the sensing block 7 to control the device, without needing to determine which hopper 5's sensing block 7 is being used. The hopper 5 is equipped with a high-frequency radar level gauge 8 for detecting the material level inside the hopper 5. The high-frequency radar level gauge 8 is connected to the controller 4. In addition, the controller 4 is also connected to the belt unloading trolley 2 and the electric telescopic rod 6. When the high-frequency radar level gauge 8 detects that the material level in the hopper 5 is lower than the set value, the high-frequency radar level gauge 8 can send a signal to the controller 4. The controller 4 controls the electric telescopic rod 6 corresponding to the hopper 5 to extend, raising the height of the sensing block 7. The controller 4 also controls the belt unloading trolley 2 to move. When the belt unloading trolley 2 moves close to the vicinity of the hopper 5, the proximity switch 3 detects the raised sensing block 7. At this time, the belt unloading trolley 2 can add material to the corresponding hopper 5, thus achieving automatic material addition.

[0020] To ensure the accurate positioning of the belt unloading trolley 2 during unloading, a Gray busbar 9 is installed along the length of the belt frame track 1 on one side. The Gray busbar 9 is installed in a conventional manner. The belt unloading trolley 2 is equipped with an antenna box 10 that can move with the belt unloading trolley 2. Through the antenna box 10 and the Gray busbar 9, the on-site operator can accurately determine the position of the belt unloading trolley 2 on the belt frame track 1. During unloading, the operator can make timely adjustments to ensure that the material is input into the corresponding hopper 5.

[0021] A dust collection pipe 11 is provided above the belt conveyor track 1 along the length of the belt conveyor track 1. The dust collection pipe 11 is provided with multiple dust collection ports 12 that correspond one-to-one with the hopper 5. An automatic door 13 is provided at the dust collection port 12. The automatic door 13 can be a conventional automatic door. The automatic door 13 is connected to the controller 4. The controller 4 can control the opening and closing of the automatic door 13. A bag dust collector 14 is provided at one end of the dust collection pipe 11.

[0022] The method of using this utility model is as follows:

[0023] When not unloading, the belt unloading trolley 2 is located at one end of the belt conveyor track 1. When the high-frequency radar level gauge 8 on any hopper 5 detects that the material level in that hopper 5 is lower than the set value, the corresponding high-frequency radar level gauge 8 sends a signal to the controller 4. The controller 4 controls the electric telescopic rod 6 corresponding to that hopper 5 to extend, raising the height of the sensing block 7. The controller 4 also controls the belt unloading trolley 2 to move to the other end of the belt conveyor track 1. When the belt unloading trolley 2 moves close to the vicinity of that hopper 5, the proximity switch 3 on the belt unloading trolley 2 detects the height increase of the sensing block 7. At this time, the proximity switch 3 sends a signal to the controller 4, and the controller 4 controls the belt unloading trolley 2 to stop moving. Since the position of the belt unloading trolley 2 after it stops may have a certain error with the unloading position of the hopper 5, it may be impossible to accurately input the material into the corresponding hopper 5. At this time, the operator can use the Gray busbar 9 and the antenna box 10 to... Determine the accurate position of the belt unloading trolley 2. If the position is inaccurate, it can be adjusted. After the adjustment, materials can be added to the corresponding hopper 5 (the amount of materials added is a fixed value. When the belt unloading trolley 2 has unloaded for the corresponding time, the operator can stop unloading to prevent the material level in the hopper 5 from being too high). When adding materials, start the bag dust collector 14. The controller 4 controls the automatic door 13 of the corresponding dust suction port 12 of the corresponding hopper 5 to open for dust suction to prevent dust generated during unloading from polluting the surrounding environment.

[0024] After the material is added, the operator can use the controller 4 to control the belt unloading trolley 2 to return to its original position, and at the same time control the corresponding electric telescopic rod 6 to shorten.

Claims

1. An automatic unloading device for a belt conveyor unloading trolley, characterized in that, include A belt frame track (1) is provided with a belt unloading trolley (2). Multiple hoppers (5) are provided on one side of the belt frame track (1) and arranged along the length of the belt frame track (1). An electric telescopic rod (6) is provided on the upper part of the hopper (5). A sensing block (7) is provided at the top of the electric telescopic rod (6). A high-frequency radar level gauge (8) for detecting the material level in the hopper (5) is provided on the hopper (5). A proximity switch (3) is mounted on the belt unloading trolley (2) and can move with the belt unloading trolley (2); The controller (4) is connected to the belt unloading trolley (2), the electric telescopic rod (6) and the proximity switch (3) respectively.

2. The automatic unloading device for a belt conveyor unloading trolley according to claim 1, characterized in that, A Gray busbar (9) is provided on one side of the belt frame track (1) along the length direction of the belt frame track (1), and an antenna box (10) that can move with the belt unloading trolley (2) is provided on the belt unloading trolley (2).

3. The automatic unloading device for a belt conveyor unloading trolley according to claim 1, characterized in that, A dust suction pipe (11) is provided above the belt frame track (1) along the length of the belt frame track (1). The dust suction pipe (11) is provided with multiple dust suction ports (12) corresponding to the hopper (5). A bag dust collector (14) is provided at one end of the dust suction pipe (11).

4. The automatic unloading device for a belt conveyor unloading trolley according to claim 3, characterized in that, An automatic door (13) is provided at the dust suction port (12), and the automatic door (13) is connected to the controller (4).

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