Gravity energy storage system of hoisting and transporting system based on mine vertical shaft

Abstract

The invention discloses a gravity energy storage system of a hoisting and transporting system based on a mine vertical shaft. The gravity energy storage system comprises derrick hoisting sheaves, steel wire rope winches, electric power generation integrated machines and control systems. A derrick is located over the shaft mouth of a vertical shaft. The derrick hoisting sheaves are arranged on thederrick. A cage runs on a vertical shaft device cage guide and can move up and down along the vertical shaft device cage guide. The cage is connected with one ends of steel wire ropes, and the other ends of the steel wire ropes are wound around the steel wire rope winches. The steel wire rope winches are connected with the electric power generation integrated machines through mechanical transmission mechanisms. The electric power generation integrated machines are connected with a power grid through a transformer. Shaft mouth car operation devices and shaft bottom car operation devices are used for transferring and transporting mine cars onto a cage. The control systems are used for controlling the working conditions of the shaft mouth car operation devices, the shaft bottom car operationdevices and the electric power generation integrated machines. The gravity energy storage system is particularly suitable for reutilization of an abandoned mine vertical shaft and a mine about to dropout of use.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to a gravity energy storage system based on a mine shaft shaft, lifting and transportation system. Background technique [0002] Existing power energy storage technologies include pumped water storage, compressed air energy storage, battery energy storage, flywheel energy storage, electrolyzed water energy storage, superconducting magnetic energy and supercapacitors. Among them, the pumped water storage technology is the most typical. The pumped water storage method has a large energy storage capacity and a fast response speed, so it is widely used. However, the construction of pumped storage power stations requires special geographical conditions. The construction of two reservoirs and dams requires a long construction period and huge initial investment, and can only be built in places with water sources, and the energy conversion efficiency is average (about 70%...

AI Technical Summary

Problems solved by technology

However, this scheme occupies a large area of ​​useful land, has many geographical constraints, a large amount of engineering, and the overall efficiency is not high (about 80% for one-way, about 60% for two-way), and the maintenance cost is high, so the practical value is limited.

More skilled technicians may further imagine that braking is not performed in the first part of the glide stroke, but arresting cables are only installed in the straight section at the end of the sloped rail, and the kinetic energy is converted into electrical energy through the braking of the arresting cables, then the total efficiency can be obtained. Increased to about 70%, but with high system complexity

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