Top-Wall Release Complex

Mechanically Powered Support Type Series AL-VN

This support is a type of a carrying enclosure support and it is dedicated for coaled-out forefields reinforcement of high coal-seams with destructive top-wall mined by the method of face-wall cave-in and the coal-mass release in the ceiling through the cave-in-shield of the support.

The mined height of seam is according to the type from 2105 to 3800 mm. Maximum coalmass height is not limited, however it is ordinary from 1 m up to 15 m. The support can be operated in the ambient with hazard of methane and coal dust explosion of the Class M2 according to the European standard.

See complex info in this docs: doc1 [PDF; 3,71 MB], doc2 [PDF; 4,03 MB] and doc3 [PDF; 6,68 MB].

Drag Conveyor – Type DSS 227 St

The drag wall conveyor DSS 227 is determined for mining of coal-seams of medium-heavy and heavy conditions. The conveyor has the maximum output 1050 tons/hour by the output up to 4 x 315 kW. The slide shoe and E-profile are made of special material so that the working life of the conveyor could reach 3 million tons of transported coal. The conveyor has got a closed lower branch and every fifth conveying trough is an inspection one.

Drag Gathering Conveyor – Type DSS 227 Sb

Drag conveyor DSS 227 Sb is determined as a gathering conveyor after medium-capacity wall conveyors. The conveyor output can be up to 2 x 160 kW. The recommended maximum length is 150 m. The conveyor can be located directly on the foot-wall or it can be partly suspended in the suspension slot by the suspension unit type ZDSS227. In the conveyor route it is possible to add a coal-crusher. The suspended conveyor including the coal-crusher can be moved by hydraulic equipment SAK 1 (with chains) or by chain-less equipment SAB 1, eventually by a hoisting winch or by a special hydraulic shifting equipment installed on the body of the conveyor route. At customer´s request it is also possible to deliver a configuration with a belt conveyor.

Forefield Upper Anchoring – Type KHSE 35

The forefield anchoring KHSE 35 is determined for fixation of the forefield drag conveyor reverse end. The anchoring cushions reactions of the conveyor as well as the weight components of the whole mining configuration (combine, coal plough) including operation forces and reactions of the above stated mining machines. For placing the anchoring in concrete conditions, it is necessary to calculate it for the local conditions (inclines, equipment, safety coefficient, etc) KHSE 35 is a double-system anchoring with permanent anchoring effect.

Forefield Anchoring – Type KS 25

The forefield anchoring KS is a single-system anchoring determined for fixation of the wall conveyor discharging end. The anchoring is determined for the conveyor direct discharging and for the under-wall conveyor connecting. Then it can move together with the conveyor. The anchoring is equipped with a crown hinge, that is why the wall conveyor drive can fully swing round against the gathering conveyor. The anchoring height is adjustable. The anchoring is determined for inclines up to 25º.

Forefield Anchoring – Lines KHV and KH

 The forefield anchoring devices – Lines KHV and KH are single-system upper anchoring devices determined for fixation of the wall conveyor reverse end. The anchoring cushions reactions of the conveyor as well as the weight components of the whole configuration including operation forces and reactions. For placing the anchoring in concrete conditions, it is necessary to calculate it for the local conditions (inclines, equipment, etc). The anchoring KHV is equipped with a long slide shoe for better steadiness and the turnaround terminal height is adjustable. The anchoring height is adjustable. The anchoring is determined for inclines up to 25º.