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Off-shaft devices
We offer the engineering design, installation and commissioning of shaft equipment according to customer requirements.
Mysłowice-Wesoła mining plant, “Piotr” shaft
MWM Elektro carried out a project related to the power supply, control and data transmission of shaft equipment and the tubs cycle system of the eastern and western compartments for the “Piotr” shaft of the KWK “Mysłowice-Wesoła” mining plant.
In the “Piotr” shaft, eastern compartment, a comprehensive modernisation of the power supply and control system for the shaft equipment and the eastern compartment mining tubs cycle system at the shaft top, shaft entry and the 665m level was carried out. As part of the modernisation, a central control cabinet for the shaft equipment and the eastern compartment mining tubs cycle system at the shaft top, shaft entry and the 665m level was installed in the hoisting machine room of the eastern compartment, together with a data transmission system. The control systems for the shaft equipment were supplied with very low SELV, PELV or intrinsically safe voltage.
Connections between the local control stations of the eastern compartment equipment on each level were made using fibre-optic lines.
A computer for visualising the operation of the control system of the shaft equipment and the eastern compartment mining tubs cycle system was installed and connected.
Contactor switchgear was constructed to supply the shaft equipment (eastern and western compartments) and the mining tubs cycle system at the shaft top and shaft entry, as well as power lines for the contactor switchgears.
The control system for the shaft equipment and the mining tubs cycle system (trains and switches) in the eastern compartment of the “Piotr” shaft, including the installation of a local station with input and output modules, complete sensor monitoring, control panels and actuating elements, as well as the associated cable network, were constructed on the shaft entry, shaft top (+15m) and the personnel transport platform (+19m). Power supply installations were made for the equipment supplied from contactor switchgears RS1 and RS2, as well as control installations to ensure correct control of the aforementioned equipment.
On the 665m level of the eastern compartment of the “Piotr” shaft, the power supply system for the shaft equipment and the mining tubs cycle system (shunting trains and switches) was constructed, including the installation of compact stations (fire-proof multi-outlet mine starters), the power supply system, and the power supply for the equipment connected to the compact stations. Local stations with input and output modules, complete sensor monitoring, control panels and actuating elements, as well as the associated cable network were installed.
MWM Elektro carried out a project related to the power supply, control and data transmission of shaft equipment and the tubs cycle system of the western compartment for the “Piotr” shaft of the KWK “Mysłowice-Wesoła” mining plant.
In the “Piotr” shaft, western compartment, a comprehensive modernisation of the mining shaft hoisting system was carried out in conjunction with the opening of the 865 m level access from this compartment.
As a result of the modernisation, a new power and control installation was constructed for the shaft equipment and the western compartment mining tubs cycle system at the level of the shaft top, entry, 230m, 465m, 665m and 865m. The equipment is powered and controlled from the newly installed electrical equipment.
The control systems for the shaft equipment were supplied with very low SELV, PELV or intrinsically safe voltage. The connections between the local control stations of the western compartment equipment on the individual levels were provided using fibre-optic lines.
The local stations were connected to a central station – the AC-800 Master 2 controller in the USSz shaft signalling cabinet of the western compartment in the hoisting machine room. In addition, a computer installed in the hoist operator’s workstation was used to visualise the operation of the control system for the shaft equipment and the western compartment mining tubs cycle system.
The circuits of the 500V contactor switchgear RS1 and the 400/230/127/24V contactor switchgear RS2 intended to supply the shaft equipment and the western compartment mining tubs cycle system on the shaft top and entry were connected.
The control system for the shaft equipment and the mining tubs cycle system (trains and switches) in the eastern compartment of the “Piotr” shaft, including the installation of a local station with input and output modules, control panels for junction boxes, as well as the associated cable network, were constructed on the shaft entry, shaft top (+15m) and the personnel transport platform (+19m).
At the 230m level, the control system for the shaft equipment in the western compartment of the “Piotr” shaft was constructed, including the installation of control panels and a cable network from the local shaft signalling station at level to the control panels.
At the 465m level, the control system for the shaft equipment in the western compartment of the “Piotr” shaft was constructed, including the installation of control panels and a cable network from the local shaft signalling station at level to the control panels.
At the 665m level, the control system for the shaft equipment in the western compartment of the “Piotr” shaft was constructed, including the installation of a local station with input and output modules, control panels, junction boxes and a cable network from the local station to the control panels and junction boxes.
At the 865m level, a power supply system for the shaft equipment and the mining tubs cycle system was constructed, including the installation of compact station RK1, fire-proof multi-outlet mining starter RK3, transformer TR1, construction of the power supply system RK1, RK3,TR1, construction of the control system for the shaft equipment and the mining tubs cycle system in the western compartment of the “Piotr” shaft, including the installation of a local station with input and output modules, control panels of junction boxes and a cable network from the local station to the control panels and junction boxes.
L-III KGHM Polska Miedź S.A. “Lubin” Mining Plant
At the the shaft top, entry and shaft bottom of the L-III shaft of KGHM Polska Miedź S.A. “Lubin” Mining Plant, the shaft equipment was modernised in terms of power supply and control.
The power and control system for the L-III shaft equipment was designed.
The shaft equipment control system interfaces with the shaft signalling device, which provides information depending on the control of the shaft equipment (level authorisation, stopped machine, tubs positions, type of operation).
Electric and pneumatic drives were used for the modernised equipment.
The control cabinet for the shaft equipment “nEP1”, control panels, junction boxes and sensors were installed at the shaft top. A cable network between the equipment was constructed.
The “nEP1” control cabinet is the basic element of the control system for the shaft equipment and is provided with the AC500 PLC made by ABB. The control of the elements was provided:
- shaft gates,
- shaft gate locks.
The shaft equipment control cabinet “zEP2”, control panels, junction boxes and sensors were constructed at the shaft entry. A cable network between the equipment was constructed.
The “zEP2” control cabinet is the basic element of the control system for the shaft equipment and is provided with the AC500 PLC made by ABB. The control of the elements was provided:
- shaft gates,
- shaft gate locks.
- shaft barrier,
- tub pusher,
- division barrier.
The control cabinet for the shaft equipment “1EP3”, control panels, junction boxes and sensors have been installed at the shaft bottom. A cable network between the equipment was constructed.
The “1EP3″ control cabinet is the basic element of the control system for the shaft equipment and is provided with the AC500 PLC made by ABB. The control of the elements was provided:
- shaft gates,
- pendulum platforms,
- shaft barrier,
- tub pusher,
- puller,
- division barrier,
- chain shunter,
- track brake.
R-III KGHM Polska Miedź S.A. “Rudna” mining plant
Modernisation the loading equipment in the skip compartment of shaft R-III at KGHM Polska Miedź S.A. “Rudna” mining plant included the power supply and control system for the loading equipment in terms of:
- measurement pockets weighing system installed at the R-III shaft bottom,
- set of equipment and elements required for air control in loading equipment, including:
- cabinet with electro-pneumatic equipment for controlling the flaps of the two measurement pockets,
- cabinet with electro-pneumatic equipment to control the distribution flap,
- a set of sensors associated with the aforementioned electropneumatic control.
Completed tasks:
- replacing the equipment control system with a new one based on an industrial programmable logic controller and lowering the control voltages to safe voltages,
- replacement of sensors related to electropneumatic control with new ones,
- installation of a signalling and visualisation system for loading equipment,
- installation of control equipment at the operating control stations in the hoist and underground at levels -950m and -962.25m,
- replacement of the weighing system with the installation of new sensors for the two bunkers (pockets),
- installation and connection of solenoid valve dampers for the weighing bunkers built into the cabinets, together with electro-pneumatic equipment,
- replacement and connection of the distribution flap valve (distributor) built into the cabinet, together with the electropneumatic equipment
KWK “Knurów- Szczygłowice” mining plant, shaft III
Modernisation of the skip loading equipment in shaft III of the KWK “Knurów-Szczygłowice” mining plant, Szczygłowice mine, western compartment, level 880m, included the modernisation of the power supply and control system of the loading equipment in the scope of the weighing of the mining output and control of the flaps of the weighing bunker as a system of explosion-proof construction equipment.
Completed tasks:
- replacement of the equipment control system with a new one based on industrial programmable logic controllers and reduction of the control voltages to safe voltage levels,
- replacement of all sensors with new ones,
- installation of visualisation of loading equipment,
- installation of service control stations,
- replacement of bunker scales including installation of new strain gauges,
- replacement and connection of solenoid valves for the top and bottom flaps of the weighing bunker, with full backup,
- replacement of isotope receivers for the weighing bunker,
- replacement of the lighting installation in the control room (signalling station), the contactor facility, the access walkway to the weighing bunkers and on both sides of the weighing bunkers.
