The correct use and maintenance of wire rope for mine, not only in relation to the shaft and enhance the safety of equipment, but also can prolong the service life of the wire rope, so in the use and maintenance of wire rope for mine, must comply with the provisions of the "Regulations":
1 use and keep mine hoist rope
The new rope shall be checked and accepted by the inspection unit, and be kept properly after passing to prevent damage and corrosion.
The original data of each coil of wire must be kept intact.
Custody for more than 1 years, the suspension must be carried out before the 1 inspection, qualified to use.
Provisions on the rope winding layers and the fixed end of the rope for 2 roller
The number of steel wire rope wrapped around the drum of various lifting devices is strictly prohibited to exceed the following requirements:
The vertical lifting or lifting personnel and material lifting, 1 layers; designed for lifting materials, 2.
Lifting personnel or lifting personnel and lifting materials in inclined shaft, 2 layers; lifting materials, 3 layers.
Lifting personnel and materials during construction, 2 layers.
The existing production mine shaft in the use of the winch, if there is a transition rope wedge in the drum, the drum strength to meet the requirements and the height of the drum edge in accordance with the provisions of Article II, the provisions of this article can be increased by 1.
Mobile or auxiliary for lifting materials (including coal gangue and bridge to enhance etc.) and sinking during for material lifting, allowing multi winding.
When 2 or more than 2 layers of wire rope are wound on the roller, the following requirements must be:
The height of the outermost 1 layers of steel wire rope is higher than the roller edge, at least 2.5 times of the diameter of the steel wire rope.
The cylinder must be equipped with a liner with a rope groove.
The critical section of the wire rope from the lower to the upper (equivalent to the loop 1/4 long section) must be inspected regularly, and should be in every quarter of the wire rope rope mobile 1/4 position.
In the existing without the rope slot liner in the use of winch, as long as the drum board is engraved with the rope groove or with 1 wire rope for the end of the rope, can continue to use.
When the wire rope is fixed on the roller, it should meet the following requirements:
Must have a special preparation of the rope or rope device, is strictly prohibited in the roller shaft.
Not having a sharp edge hole rope, wire rope bending shall form an acute angle.
In order to reduce the tension of the fixed place, the roller should always be wrapped with 3 ring ropes.
3 the use of steel wire rope
There is a wire rope joint, can only be used in driftway transport equipment, 30 "below slopelane for secondary winch, lifting materials in inclined roadway aerial passenger device.
The use of wire rope in the inclined roadway, the insertion length of not less than 1000 times the diameter of the steel wire rope.
4 the use period of mine steel wire rope
The use of wire rope friction hoisting shall not exceed 2 years, the balance of the use of wire rope shall not exceed 4 years, if the provisions of broken wire, and the corrosion degree of reduced diameter does not exceed the "Regulations", can continue to use, but not more than 1 years.
5 maintenance of mine steel wire rope
The main lifting equipment must be equipped with a qualified spare wire rope. The wire rope in use, should be based on the roadway conditions and corrosion, at least 1 times a month oiling. Friction wheel lifting device of the lifting wire rope, only to be coated, dipped in a special steel wire rope oil (by grinding grease); but not to bypass the friction wheel part of the wire rope, must be coated with anticorrosive oil.
On the other hand the wire rope maintenance work can not be ignored, such as the rope after the experiment, should be kept in the dark, rain and dry shed, with the lower part of the wooden block, the outer wire rope from the ground is not less than 0.2m, to avoid damp. After storage before the rainy season every year to check the time, such as corrosion, should be examined and greased with deconvolution. When handling to avoid contact with the ground, not with an iron bar to pry the rope moving, loading hoisting rope, no direct tie hanging on a rope from the car, truck is not allowed to push down.
6 inspection and inspection of mine steel wire rope
(1) examination of hoisting rope
Rope, rope and rope must be inspected 1 times a day, the balance of wire rope, anti fall device of the brake rope (including the buffer rope) and shaft suspension wire rope must be checked at least 1 times a week. A section shall be checked for easy damage and broken wires or corrosion. The protruding part of the broken wire should be cut in check, the inspection result should be recorded in the inspection record book of the wire rope.
The ratio of the area of broken wire and the total area of the steel wire in the 1 lay length is achieved, and the following values must be replaced:
The steel wire rope for the lifting personnel or the personnel and the material section is 5%.
A wire rope for lifting materials, balance steel wire rope, anti fall device of the brake rope (including buffer rope) is 10%.
Tank Road steel wire rope is 15%.
The overhead passenger device, specially designed for the non - pole rope transportation and the steel wire rope for the conveyor belt conveyor, is 25%.
In order to calculate the diameter of the nominal diameter of the wire rope of mine, the following values must be replaced:
Hoisting rope or brake steel wire rope is 10%.
Tank Road steel wire rope is 15%.
When the sealing wire rope is used, the thickness of the outer layer of the steel wire is 50%.
As for the coal mine underground water, high pH, poor working environment, the use of wire rope will appear after a period of time, rust and corrosion of steel wire color, reduce the tensile strength of steel wire rope, wire rope safety