The performance of the shaft sinking winch is very excellent, so it is widely used in the market. Many users choose mining hoist winch when purchasing them, but they must operate according to the requirements during use, otherwise malfunctions may occur. Especially the protection system of the mining hoist winch is prone to problems, but these problems are usually caused by braking, as long as they are replaced in a timely manner.
If there are any issues with the mine winch, check the protection system. There is a problem with the protection of the shoes, there is no safety circuit, you must replace the brake pads, and so on. However, electrical components, hydraulic station components, and anything else can go wrong, but this is not a big mistake. You must understand the system to fix it. The deceleration point is on the depth indicator, and as long as the travel switch of the deceleration point is turned up and down, it can be freely placed.
The frequency converter of the variable frequency mining hoist winch is malfunctioning, which means the circuit is malfunctioning. The control program is generally fine, and you cannot change it. The protection is also fine. A hydraulic station is not a hydraulic pump. Except for a burnt pump, there is no problem. A hydraulic station problem is also a valve problem, such as a burnt valve or a need to adjust the adjustment area, oil leakage or blockage in the oil pipe. Usually, that thing won't break except for broken parts. In short, if you want to fix this thing, you need to understand the schematic, otherwise it's useless to say anything.
The hydraulic station pressure regulation of mine winch using DC, AC cutting resistance, and AC variable frequency cutting resistance winches is the same. At present, the pressure regulation method of the shaft sinking winch is basically using an electro-hydraulic proportional valve for pressure regulation. The electronic control system sends a control voltage or current to the proportional valve, and the control voltage (flow) is basically linearly related to the system pressure. The larger the voltage (flow), the greater the hydraulic station pressure.
The actual use shaft sinking winch of coal in China, the control of smoke and dust pollution caused by the use of coal by large enterprises, the dispersion of coal smoke and dust pollution, such as small coal-fired boilers, fuel coal smoke and dust pollution, the management of coal boiler pollution caused by 1 ton of coal, and the pollution caused by 100 tons of coal. Now, the prevention of air pollution has limited the use of coal, and coal enterprises have begun to. China's coal management is based on the principles of system engineering. Firstly, it disperses and reduces the use of coal, using natural gas and clean fuels. Secondly, the focus of coal enterprises is to eliminate outdated coal and use clean coal technology for management.
