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| New W steel repair mold development |
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UpdateTime：[2011/12/14 9:13:06] Hits：[3260] From：TONRY MINING SAFETY SUPPORT TECHNOLOGY CO.,LTD
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Anchor beam system not only solved the supporting problem, can also be used in other large section roadway, chamber support, can also be used in a landslide, embankment, strengthening of dam. Anchor beam system is generally applicable to moderate stability following rock. In coal mine roadway support application, saved a large number of steel, wood. Using W / M type belt and anchor combined technology and commonly used 11 mine use I-beam frame, each frame can save 856.6kg, so far, with W / M type steel strip 82430, compared with 11 of mine I-steel shed support each shelf save steel 73.4kg, compared with 11 mine I-steel beam U25 type retractable leg mixed support, saving steel 157.4t, were calculated to save steel 6049 T and 12942t. At the same time, but also greatly reduce the labor intensity of workers, improves the working environment of the workers, for the coal mine safety production efficiency, bring obvious economic benefit and social benefit. Effectively increase the anchor on the early support of roadway surrounding rock control action, enhance the action of anchor level. Mine W steel is a new type mine pit and tunnel support material, it is with longitudinal shearing strip as raw material, through multiple groups of continuous cold rolling mill shaped steel products. Due to the cold forming process of geometric deformation hardening effect, so that the steel strength increase.
Mine W steel and bolt joint combined bolting truss, W steel is widely used in coal mine underground roadway, railway tunnel, working face, chamber, roadway crossing point and other areas of the roadway, the treatment effect is better for unstable surrounding rock. Can reduce support cost, save the supporting steel, reduce the labor intensity of workers, improves the working environment etc.. The invention has obvious economic benefit and social benefit.
W steel strip connecting mode can adopt multiple styles, can be electric melting connection, thermal contraction belt connection, internal and external extrusion welding or multiple connection combination use, firm connection. Reliable connection can be made to achieve zero leakage of pipeline. W steel repair mold using the upper and lower mold structure, in order to ensure the strength of die, through the plane out of two and W steel strip bulges corresponding to the 50 mm thick steel plate groove bottom welding I-steel, fixed on a press working table approach consisting of lower mould, mold through the use of 20 mm steel plate welded H-shaped steel reinforcement, and in steel by with female wire splint and press the telescopic rod. Composed of the upper and lower body mold. Extremely effective conservation of the explosion-proof dehumidifiers mold cost.
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