Shield recovery control system

For a face move or shield overhauls the support units need to be brought into transport position. 

For this purpose, the shields are completely lowered to allow removing them from the longwall face as compactly as possible. In order to ensure that the shields can be operated from a safe distance without hazards to the miners two types of recovery control have been developed.

With the radio remote control and the recovery control RS01 two (2) different variants are at your disposal.

You can naturally also use the two recovery control types for equipping a longwall face.

Radio remote control

The radio remote control has been developed for installations where shield control units of type ASG5 are employed. The radio remote control basically consists of 2 components: Radio remote iFBA_01  Radio remote control unit AFS_01 For a[...]

The radio remote control has been developed for installations where shield control units of type ASG5 are employed.
The radio remote control basically consists of 2 components:
Radio remote iFBA_01 
Radio remote control unit AFS_01

For a longwall move or when shield overhauls are required, first the complete power supply equipment if removed from the shield. In order to bring the individual shields into their transport position the respective shield control units must be supplied with power. This is achieved using a hose-protected cable SKK28 and the rechargeable battery of the radio control system. The pre-programmed functions of the shield can then be activated via the radio remote iFBA_01.
After the shield has reached its transport position the battery will be removed and the transport of the next shield can commence.

Radio remote iFBA_01

Radio remote iFBA_01

Component of the radio remote control The radio remote is a battery-powered hand-held unit which allows to select the pre-programmed functions of a shield. It consists of a rugged plastic housing with a 12-key membrane keyboard. The radio[...]

Component of the radio remote control
The radio remote is a battery-powered hand-held unit which allows to select the pre-programmed functions of a shield. It consists of a rugged plastic housing with a 12-key membrane keyboard. The radio remote sends its data to the receiver of the radio remote control. From there, the signals are passed on to the shield control unit.
The battery has a capacity for approx. 10 operating hours. Afterwards, the radio remote can be easily recharged at the surface using the charging shell.

Radio remote control unit AFS_01

Radio remote control unit AFS_01

Component of the radio remote control The battery-powered radio remote control is the heart of the radio remote control for recovery operations. The housing largely is made of antistatic plastic. The most important elements are the 4 battery[...]

Component of the radio remote control
The battery-powered radio remote control is the heart of the radio remote control for recovery operations. The housing largely is made of antistatic plastic. The most important elements are the 4 battery packs. Each battery pack can be activated individually by means of a magnetic key thus making the power available to the remote control. The respective shield control unit is then powered via a hose-protected cable SKK28.
The battery packs can be recharged at the surface using an external charging unit.
Another task of the radio remote control system is to receive and transmit function data which are sent by the radio remote.

Recovery control unit iRS01

Due to the compact design of most of the shields it is not possible to remove the control units from the shields once the latter are completely lowered. For this reason the recovery control unit iRS_01 has been developed. This type of[...]

Due to the compact design of most of the shields it is not possible to remove the control units from the shields once the latter are completely lowered. For this reason the recovery control unit iRS_01 has been developed.
This type of recovery control system has the shield control unit replaced by a combination of shield control unit, solenoid driver module and hose-protected cable. The individual solenoids of the control block are connected to the driver module. Two SKK28 cables and one SKK28 double socket are used to connect the ASG 5RS. Thanks to the application of the double socket the ASG 5RS can be easily removed after the shield has been lowered and reused for further recovery operations. The solenoid driver module remains in the shield.
Power is supplied to the ASG 5RS either via an external power supply unit or via a shield control unit of the walking shields.

ASG 5RS

ASG 5RS

Component of the recovery control iRS01 The shield control unit 5RS is designed as external control unit for the shields to be recovered. A hose-protected cable SKK28 connects the ASG 5RS with the solenoid driver module of the control block.[...]

Component of the recovery control iRS01
The shield control unit 5RS is designed as external control unit for the shields to be recovered. A hose-protected cable SKK28 connects the ASG 5RS with the solenoid driver module of the control block. The ASG 5RS is equipped with a software that allows it to control its own shield support. All hydraulic functions of the shield can be operated by means of the ASG keyboard without any personnel having to be present in the hazardous area.

Solenoid driver module RS

Solenoid driver module RS

Component of the recovery control iRS01 The solenoid driver module RS is the connecting element between the control block and the ASG 5RS. The solenoid valves required are connected to the solenoid driver module by means of the Hirschmann[...]

Component of the recovery control iRS01
The solenoid driver module RS is the connecting element between the control block and the ASG 5RS. The solenoid valves required are connected to the solenoid driver module by means of the Hirschmann connectors.
The signals are routed to the ASG 5RS via the SKK 28 socket.