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Vertical shaft and inclined shaft winding type hoist winch shall be equipped with set vehicle equipment. In addition to the mechanical brake, the hoist winch should also be equipped with an electric brake.
2. The following safety protection devices should be installed in the electrical control system control system of the belt conveyor: emergency interlocking parking devices should be installed along the belt conveyor; prevent conveyor belt deviation, drive roller slippage, longitudinal tearing and chute blockage, etc. Protection device; the upstream belt conveyor shall be provided with a safety protection device to prevent the conveyor belt from reversing, and the down belt conveyor shall be provided with a safety protection device for preventing overspeed; protection shall be provided around the rotating parts of the drive, transmission and automatic tensioning device Device; start stop warning and warning signal.
3. Protection of the hoist drive system The hoist powered by the AC drive shall be equipped with interlock protection for the AC synchronous motor drive system. The safety brake circuit must be disconnected when one of the following conditions occurs:
High-voltage or low-voltage power supply, disconnected IË!.; DC fast switch trip; main circuit overvoltage or ground; armature overcurrent; excitation circuit lost power, over current, magnetic field loss; position controller failure; adjustment position power failure; The relay is powered off; the zero relay is de-energized; the misalignment operation; the brake oil circuit system failure; the monitor or depth indicator is disconnected from the spindle; the synchronous motor is under voltage; the microcomputer is faulty.
(II) Equipment operation 1. The high-voltage control equipment of the downhole high-voltage motor and power transformer shall have short-circuit, overload, grounding and under-voltage release protection. The control equipment of the low-voltage motor shall be provided with short-circuit, overload, single-phase disconnection, leakage lock protection device and remote control device.
2. When transporting by locomotive, the following rules should be observed:
(1) Trains or individual locomotives must have front lighting and red lights.
(2) During normal operation, the locomotive must be at the front of the train.
(3) The damper that the train passes must have a device that can receive sound and light signals on both sides of the damper when the train passes.
(4) Non-motorized vehicles shall not be driven on the same track. If you need to drive, you must agree with the downhole dispatching station.
(5) Road signs and warning signs should be installed in the roadway. When the locomotive line is near the roadway, the Tongkou mouth, the curve, the ballast, the slope is large or the noise is large, and there are obstacles in front of the vehicle or the line of sight, the speed must be reduced and a warning sign is issued.
(6) The requirement to send an emergency stop signal with a miner's lamp. No one should use the emergency stop signal in a non-hazardous situation.
(7) When two or two trains are driving in the same direction on the same track, they must maintain a distance of not less than 100m.
(8) The braking distance of the train is measured at least once a year. Do not exceed 40m when transporting materials; do not exceed 20m when transporting personnel.
Mine safety electricity and equipment operation
(1) Electrical protection 1. The hoist should be equipped with electrical protection system. The following safety protection devices should be installed in the control system: anti-rolling device; over-speed device; overload and under-voltage protection device; speed limit device; depth indicator failure Protection device; gate gap protection device; loose rope protection device; full warehouse protection device; deceleration function protection device. The anti-rolling device, the overspeed preventing device, the speed limiting device and the deceleration function protecting device should be arranged in a two-line type independent of each other.