A safety device for preventing a derailed mine car from falling off a track in a belt conveyor system

Abstract

The present application relates to a kind of safety devices for preventing the derailment of missing mine car in belt transport system, the device includes missing mine car box, wheel, electrical control system, blocking steel plate, wire, belt first wheel, blocking switch and column, stainless steel column is additionally installed beside belt first wheel, blocking switch is fixedly installed on column, blocking switch is controlled by knob arm, knob arm is extended by blocking steel plate, electrical control system is installed on the side of missing mine car box, and electrical control system is connected with blocking switch by stretchable wire.The device improves the safety of mining operation by mechanical and electrical control means, reduces the safety, equipment and production accidents caused by the derailment of missing mine car, and ensures personnel safety and equipment safety.

Description

Technical Field

[0001] This invention relates to a safety device, specifically a safety device for preventing mine cars from derailing in belt conveyor systems, belonging to the field of mining safety technology. Background Technology

[0002] In mining production, belt conveyor systems are a crucial link in the handling of ore and materials. Ore cars, as an important component of these systems, are responsible for transporting ore from the mining site to the processing point. However, ore cars may derail during operation, which can not only disrupt transportation but also lead to serious safety accidents, threatening the personal safety of workers, as well as causing equipment damage and production interruptions. Traditional belt conveyor systems often lack effective safety protection measures, especially in the event of ore cars going out of control or malfunctioning, lacking mechanisms for automatically stopping or slowing down, making derailment accidents difficult to avoid.

[0003] In mining production, derailment of ore cars during belt conveyor transport is a serious safety accident. Due to the large size and weight of ore cars, the belt conveyor exerts significant traction on them during normal operation, further increasing the risk of derailment. Existing belt conveyor systems lack effective safety protection measures, particularly in the absence of mechanisms to automatically stop or slow down ore cars when they become uncontrollable or malfunction, making derailment accidents difficult to avoid. Existing anti-derailment and anti-slip devices often only achieve a single function, failing to simultaneously prevent both derailment and slippage, increasing the complexity of the technical solutions and potentially leading to a higher failure rate. Summary of the Invention

[0004] This invention addresses the technical problems existing in the prior art by designing a safety device for preventing ore leakage cars from derailing in belt conveyor systems. This device prevents derailment during ore leakage conveyor transport, ensuring stable equipment operation and eliminating safety hazards. The device involves installing a blocking steel plate and a deceleration switch on the first pulley of the belt, and an electrical control system and limit markers on the trolley. When the ore leakage trolley loses control and breaks through the limit switch, the limit marker impacts the blocking steel plate, triggering the deceleration switch, which transmits the signal to the electrical control system, stopping the belt and preventing derailment. This device, through mechanical and electrical control methods, improves the safety of mining operations, reduces safety, equipment, and production accidents caused by ore leakage car derailments, and ensures personnel and equipment safety.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: a safety device for preventing ore leakage cars from derailing in a belt conveyor system, the device comprising an ore leakage car, wheels, an electrical control system, a limit sign, a blocking steel plate, wires, a belt pulley, a deflector switch, and a column. A stainless steel column is installed next to the belt pulley, and the deflector switch is fixedly installed on the column. The deflector switch is controlled by a knob arm, which extends through the blocking steel plate. An electrical control system is installed on the side of the ore leakage car, and the electrical control system is connected to the deflector switch via a stretchable wire. The limit sign is vertically installed in front of the ore leakage car.

[0006] Compared to existing technologies, this invention has the following advantages: ① An obstruction switch is added at the first wheel position of the ore-leaking trolley conveyor belt. This switch extends a knob arm via an obstruction steel plate to ensure rapid activation and stop of the conveyor belt operation when the ore-leaking trolley becomes uncontrollable. The design of the obstruction switch must take into account the actual operating environment to ensure stable operation even under extreme conditions. The installation position, angle, and triggering force of the switch all need to be precisely calculated to ensure timely response when the trolley becomes uncontrollable.

[0007] ② When the ore-leaking trolley goes out of control and breaks through the limit switch, about to collide with the blocking steel plate, it triggers the deceleration switch, causing the belt conveyor to stop. A reliable electrical control system was designed to ensure that the belt motor power supply can be quickly cut off after the deceleration switch is triggered, achieving an emergency stop. Simultaneously, the system should have a self-diagnostic function to quickly locate the problem and perform repairs when a fault occurs.

[0008] ③ The design of the stop switch must be able to respond quickly to the trolley's runaway state and rapidly trigger the stop mechanism to reduce the potential risk of derailment. Highly sensitive sensors and fast-response actuators may be required to ensure rapid power cut-off in emergency situations.

[0009] ④ The solution combines improvements to the mechanical structure with electrical automation control, enhancing the system's reliability and safety. Precise mechanical and electrical design is required to ensure compatibility and coordination between the two, as well as stability under various environments.

[0010] ⑤ By adding safety devices, this solution aims to prevent derailment accidents involving ore-leaking trolleys, embodying the safety philosophy of prevention first and prevention combined with control. Regular inspection and maintenance of the safety devices are necessary to ensure they are always in good working order. This effectively prevents ore-leaking trolley derailment accidents, ensures the safe operation of the conveyor belt, eliminates safety hazards, and improves operational efficiency and safety. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the present invention;

[0012] In the diagram: 1. Mine car body, 2. Wheel, 3. Electrical control system, 4. Limit indicator, 5. Barrier steel plate, 6. Wire, 7. Belt pulley, 8. Interference switch, 9. Column. Detailed Implementation

[0013] To enhance understanding of the present invention, the embodiments will be described in detail below with reference to the accompanying drawings.

[0014] Example 1: See Figure 1 A safety device for preventing ore leakage cars from derailing in a belt conveyor system. The device includes an ore leakage car 1, wheels 2, an electrical control system 3, a limit marker 4, a barrier steel plate 5, a wire 6, a belt pulley 7, a deflector switch 8, and a column 9. A stainless steel column 9 is installed next to the belt pulley 7. The deflector switch 8 is fixedly installed on the column 9 and is controlled by a knob arm. The knob arm extends through the barrier steel plate 5. The electrical control system 3 is installed on the side of the ore leakage car 1. The electrical control system 3 is connected to the deflector switch 8 through a stretchable wire 6. The limit marker 4 is vertically installed in front of the ore leakage car.

[0015] This invention primarily addresses a method for preventing the safety hazard of ore car derailment in belt conveyor systems. The design of this method will be comprehensively described below:

[0016] 1. Hazard identification and analysis:

[0017] Through job-related hazard identification activities, the problem of malfunctioning and derailing ore leakage trolleys was identified. Relevant engineering software was used to model the belt conveyor system, analyze the running trajectory of the ore leakage trolleys and potential derailment points, and thus accurately and reasonably arrange safety precautions.

[0018] 2. When a mine car may derail from the first pulley of the conveyor belt:

[0019] The belt conveyor system was adjusted in stages, with appropriate changes to the belt's operating parameters and the removal or enhancement of protective measures on the first conveyor belt. By installing a stop switch on the first conveyor belt, when the ore-leaking trolley becomes uncontrollable and is about to derail, the stop switch is activated, quickly stopping the belt and preventing a derailment accident.

[0020] 3. When a mine car may derail midway along the conveyor belt:

[0021] Analyze the operating status of the ore-carrying vehicle and the wear condition of the conveyor belt. Install stop switches at critical locations to quickly cut off the power to the conveyor belt and stop its operation when an abnormality is detected. At the same time, reduce the risk of derailment caused by belt problems by adjusting the belt tension and performing maintenance.

[0022] 4. When a mine car is at the end of the conveyor belt and may derail:

[0023] The belt conveyor end structure is specially designed so that no additional roadway engineering is required. Instead, by installing a stop switch and strengthening protective measures at the end, it can ensure a timely response to stop the belt operation and avoid derailment accidents when a ore car goes out of control.

[0024] 5. When there are continuous or large obstacles in the belt conveyor system:

[0025] Adjust the layout of the belt conveyor system and install protective measures along the path of the obstacle. If the obstacle is small, handle it according to the above measures; if the obstacle is large, consider changing the transport route or strengthening the structure around the obstacle to prevent derailment caused by the obstacle.

[0026] It should be noted that the above embodiments are not intended to limit the scope of protection of the present invention. Equivalent transformations or substitutions made based on the above technical solutions all fall within the scope of protection of the claims of the present invention.

Claims

1. A safety device for preventing mine cars from derailing in a belt conveyor system, characterized in that, The device includes a ore-leaking car body, wheels, an electrical control system, a barrier steel plate, wires, a belt pulley, a deflector switch, and a column. A stainless steel column is installed next to the belt pulley, and the deflector switch is fixedly installed on the column. The deflector switch is controlled by a knob arm, which extends through the barrier steel plate. The electrical control system is installed on the side of the ore-leaking car body and is connected to the deflector switch via a stretchable wire.

2. A safety device for preventing mine cars from derailing in a belt conveyor system according to claim 1, characterized in that, The device also includes a limit marker, which is vertically installed in front of the ore-leaking car.

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