Scanner of car position for coking plants

Advanges:

• coding plates and scanning head are made from stainless steel
• there is no electronic part in the coding plates
• optical system resistant to dust and steam (automatic control)
• automatic control of scanning head temperature
• heating system to prevent steam condensation
• prevention of faulty reading of car position
• transverse deviation of head position against the coding plate without any loss of accuracy (+/- 70 mm horizontally, +/- 45 mm vertically)

Merits:

• more accurate car positioning
• automatic car shunting
• process control and follow up

Principle of device:

Coding plates are installed in front of individual coke chambers, the scanning head is fixed to the car, and the display is installed in the operator's room. An individual number of each plate is optically identified when the plate passes through the gap in the scanning head. In the same time the distance from the canter of the code plate is measured. The display allocates the plate name to its number, which is then shown in the upper display field. The bottom display field shows the distance from the center of the code plate together with a minus or plus sign. The display has serial port RS485 to interface with an external communication system (PROFIBUS, MODBUS). The entire equipment is very robust and resistant to the adverse conditions of the coke plant environment.

This equipment will facilitate a more precise guidance of the cars, which will result in minimizing the wear and tear of the coking coal chambers. It will also provide an effective synchronization of the cars and automation of car shunting or of the entire coking plant. It can effectively control the whole coke production process.

Digital display

• display of position No. of chamber/letters
• display of deviation ± 350 mm
• hysteresis < 1 mm

Reference:

• SIEMENS s.r.o., Czech rep.

• ARCELORMITTAL Ostrava a.s., Czech rep.
• OKK Koksovny, a.s. Koksovna Svoboda Czech rep.
• US STEEL Košice, Slovak rep.
• ARCELORMITTAL Zenica, Bosnia-Herzegovina

Technical data:

Parameter	Value
Gap for passage of plates	150 mm
Overall dimension of scanning head	690 × 445 × 380 mm
Max. speed of scanning head	7 m/s
Dimensions of coding plates	340 × 310 mm
Material of head and plates	stainless steel
Working temperature range	-20°C (-50°C) to 70°C
Power supply	24 V DC / 0.5A, 4A