Stacker

A settler is a mining device for tilting of excavated or other materials resulting from extraction and processing.

Structure and differentiation

A settler consists of a chassis, a rotating superstructure with discharge boom and a supply of abzukippenden material, which can be carried out at large scale facilities as self-propelled tripper cars, some with selbstfahrendem intermediate conveyor.

Depending on the supply of the material, spreaders can be made between:

• Spreaders for traction
• Spreaders for band operation

Another classification possibility arises from the chassis:

• Spreaders with tracks
• Stacker with walking mechanism
• Stacker with track undercarriage

Use in Germany

In Germany spreaders for band operation must be used first. This often works together with a tripper car. The tripper car transfers coming from the open pit overburden conveyor belt to the stacker. The spreader can be filled with his long and movable boom the mining again.

But spreaders for train operations are still in use. In these first the material is tilted from the train in a small bunker and then by the grave organ ( bucket brigade ) received the spreader again. Then the tilting of the mass at the desired point is performed.

This technique is used for example in some opencast mines in the Lusatian lignite mining area used. Thus resulting products from flue gas desulphurisation (gypsum ), for example in the mining Jaenschwalde on a specially created Hochkippe stored from the power plant Jaenschwalde.

Until the reunification also include the applicable power plant ash was mixed on an external dump on the masses of the overburden dumped from the overburden conveyor bridge F60 waste dump for soil improvement. The intermixing of power plant ash is no longer allowed by today's environmental aspects. This is due to the electrical conductivity that is higher than the prescribed limit. The power plant ash must not come into contact with groundwater. Therefore, high tipping now be created and then sealed.