LASE GmbH - Moderne Lasermessgeräte & hochentwickelte Softwareapplikationen // State-of-the-art laser sensors & sophisticated software applications

Exact bunker profile measurement with LaseBVB in coke bunkers at Salzgitter Flachstahl GmbH

Published in News

Successful commissoning of volume measurement system in coke bunkers next to new ship unloader

 

Image: Part of the huge bunker area filled by coke wagons / © LASE

31.10.2016 // German steel producer Salzgitter Flachstahl AG operates with bunker volume measurement system LaseBVB

A new ship unloader has been installed in a coke bunker plant on the site of Salzgitter Flachstahl GmbH in Salzgitter, Germany. The bunker is being loaded either from ship stowages on the canal site and from train wagons on the land side. It is divided into several bunker bins, whose volume can be determined by 3D laser technology now.

In order to determine the exact bunker volume contact-less measuring systems by LASE have been applied, which are highly suitable because of their high accuracy, high reproducibility and the robust design. Two 2D laser scanners out of the LASE 2000D-11x Series are mounted on the main girder of the ship unloader, such that their scan planes is projected vertically downwards and parallel to the main girder. Both laser scanners deliver 2D profiles where the cross section of the bunker below them is shown.

The laser measurement system starts measuring automatically at crane travel and being actuated by a SPS. During crane travel the created 2D profiles are collected and converted into a 3D volume model by the discharging position. Thus the volume of totally eight bunkers is updated permanently and the calculated result is displayed on screen. For the determination of the exact volume even the separating walls or other objects can be excluded from the calculation through suppression areas.

Image: LaseBVB software mask - manager application shows the volume of each bunker bin / © LASE

 

The system can be operated intuitively due to user-oriented dialogue control and configuration wizards for simple commissioning. The application has a high versatility and can be used for volume and profile measurements in several bunker plant types. This specific software derives from the product line CEWS Bulk Volume Module and distinguishes oneself in the use within rough industrial environments.

Find out more on our product site...

 

LaseSTR - Slab Tracking Roller-table

Published in Steel Logistics

Continuous monitoring of material on the cold roller table in front of furnaces: The control system receives approximate real-time position information of the slabs.

System features:

  • Fast and exact slab position recognition and monitoring
  • Approximate real-time position data
  • Clear product identification – no confusion
  • Queue building – no problem
  • Further possible application: roller tables with automatic positioning
  • Robust and reliable measuring technology

Short description:
A continuous monitoring of slabs on a cold roller table is possible with the LaseSTR - Slab Tracking Roller-table measurement system. It tracks the slabs on the roller table from the placement on the roller table over the charge identification through to they are pushed into the furnace. The laser scanners are installed alongside the roller table, placed in protective housings. The measurement system can also be installed at a roller table of any length.

The laser scanners send the measured data via Ethernet Interface to our LASE Control Unit (LCU). This application software of the LCU undertakes the following tasks:

  • Measurement data reading of the scanner (distance and angle)
  • Segmentation
  • Image structure of a list with slab ID numbers as well as head and base coordinates
  • Management and notification of malfunctions
  • Communication with material scheduling via TCP/IP

Watch our product video for further information in the embedded YouTube player. In case of any problems you can also stream it from our webserver here...

LaseSPF - Slab Positioning Furnace

Published in Steel Logistics

Slab position recognition measurement on the roller table in front of the furnace: The LASE Control Unit (LCU) receives reliable and approx. real-time position data of the slabs.

System features:

  • Fast and precise slab position recognition
  • Approximate real-time position data
  • Absolute measurement
  • Robust measuring technology
  • Simple installation

Short description:

With the measurement system LaseSPF - Slab Positioning Furnace slabs can be positioned precisely before they are pushed into the furnace. The laser system (typ. 3 pieces) scan an area of 140 mm above the roller table top edge. If slabs are within the scanned area, their position is detected via measurements of their front and side. The raw data from the laser scanners – like distances and angles – are transferred to a LASE Control Unit. There the measured data will be evaluated and generates compressed information for slab head and slab foot position. With this information the roller table control can position the slab precisely.

LaseSPY - Slab Positioning Yard

Published in Steel Logistics

The system is working during the crane operation: It functions as the extension of the driver's eye.

System features:

  • For automatic crane systems
  • Automatic slab handling
  • Slab width measurement
  • Determines the number of slabs in the storage field
  • Coupling of the laser scanners via Profibus or Ethernet
  • Conjunction to the LVS via Ethernet

Short description :

The measurement system LaseSPY - Slab Positioning Yard consists of two laser scanners attached to the crane trolley. The laser scanners measure across beam and along the slab which hang on the magnet. The pick up and setting down position of the slabs is determined (cooperating with the warehouse-system - LVS) and also the widths and number of slabs are recorded. A safe acquisition of single slabs is also possible. The data from the laser scanners is processed by a LASE Control Unit (LCU) and passed on by Ethernet to the supervisory stock control management system. Due to this measurement system an automatic operation of the yard is guaranteed.

Watch our product video for further information in the embedded YouTube player. In case of any problems you can also stream it from our webserver here...

LaseCPY - Coil Profiling Yard

Published in Steel Logistics

Coil position and -dimension measurement in the yard: Our system is the eye of the control system and can provide the exact position information of the coils.

System features:

  • Exact positioning of coils and pits
  • Measurement of coil dimension
  • Damage-Free coil handling
  • Fully automatic loading and unloading in the yard
  • Robust measuring technology

Short description:
Depending on the coil dimensions and the general environment the measurement system LaseCPY - Coil Profiling Yard can consist of up to four LASE 2000D laser scanners, which are installed on the crane girder and a LASE Control Unit (LCU) for the evaluation of laser measuring data. On this unit the yard profile in its Y and Z-axis and an additional distance measurement for the crane position (X-axis) will be realized by a LASE 1000D laser scanner. Consequently a three-dimensional image of the yard is generated during the crane drive in order that positions of all coils in their X, Y and Z-direction are sent to the crane PLC and transmitted to the warehouse management system.
By means of this coil position data the warehouse management system generates information about the driving schedule for the automatic crane, the coil width and coil dimension.

LaseCPW - Coil Positioning Wagons

Published in Steel Logistics

Full automatic coil loading and unloading control with position recognition of coils and shallow pits on railway wagons: LASE offers a solution for gentle coli handling.

System features:

  • Precise position recognition of coils and shallow pits
  • Fully automatic loading and unloading of wagons or trailers
  • Gentle coil handling
  • Robust measuring technique
  • Simple installation
  • Further application: Automatic slab handling

Short description:
The complete measurement system, named LaseCPW - Coil Positioning Wagons, consists of a laser scanner measuring the scenery on the wagons in their Y and Z-axis, a laser distance meter determining the crane position (X-axis) and a LASE Control Unit (LCU) for the evaluation of the laser measuring data. The laser scanner was mounted on the crane in a distance of 4m to the centre of the railway track. Now a 3-dimensional image of the scenery on the wagons implies out of the raw data.

The coil positions are determined by a measuring drive before unloading. The crane moves over the entire incoming train with a constant speed of 0.5 m/s. Meanwhile the raw data of the laser systems are read in by the LCU. At the end of the measuring drive the determination of the coil positions starts, whereby the data are extracted by filters in advance. The measurement result (positions of all coils in X, Y and Z-direction) is sent to the crane PLC and this one forwards the position data to the warehouse management system. By means of the coil position data the warehouse management system generates the driving job for the automatic crane afterwards.

Watch our product video for further information in the embedded YouTube player. In case of any problems you can also stream it from our webserver here...

LaseCPT - Coil Positioning Trailer

Published in Steel Logistics

Automatic coil loading and unloading with a laser position system on the storage yard.

System features:

  • Automatic coil admission and deposition
  • Precise coil position and circumferential measurement
  • Shallow pit measurement
  • Simply expandable
  • Profibus Interface

Short description:
The measurement system LaseCPT - Coil Positioning Trailer consists of a LASE 2000D Laser Scanner and LASE Control Unit (LCU) for the evaluation of the laser data. The components are installed on the crane and additionally the distance data submitted by a Laser Distance Meter are applied for the crane and trolley drive. With this data a 3-dimensional image of the scenery on the trailer is produced. The results of the coil position and circumferential measurement are transmitted via Profibus Interface to the supervisory crane PLC host.

LaseSPM - Slab Profile Measurement

Published in Steel Dimension

Slab width and side profile measurement for hot and cold slabs: In this case triangulation-laser scanners by LASE are applied.

System features:

  • Calculation of max., min. and average width of the slabs
  • Slab contour measurement
  • Correction of oblique positions
  • Calculation of wedge shape and saber shape
  • Calculating a virtual Rectangle for space optimization in the furnace

Short description:
The LaseSPM slab width and profile measurement system consists of two LASE 2000T triangulation-laser scanners which are mounted on both sides of the roll table.
The measurement system scales at the long edges of the slabs andy knowing the distance between both systems and the measured data, the slab width and the profile can be calculated. The evaluation takes place in a LASE Control Unit (LCU).
The slabs can also be driven through the measurement system diagonally because the software compensates oblique positions automatically. In addition, the shape (wedge shape and saber shape) of slabs can also be determined. Triangulation-laser scanners of the LASE 2000T-series are used here which also can measure hot slabs accurate to the millimetre.

Watch our product video for further information in the embedded YouTube player. In case of any problems you can also stream it from our webserver here...

LaseSDM - Slab Dimension Measurement

Published in Steel Dimension

Length, width, thickness and shape - slabs can be measured in all of their dimensions: The solutions by LASE are configured modularly in order that measurements are according to customers' requests.

System features for LaseSDM - Slab Dimension Measurement:

  • Lenght
  • Width
  • Thickness
  • Shape (wedge and saber in horizontal orientation)
  • Shape (saber in vertical orientation)

The measuring frame (see picture above) consists of systems for width-, thickness- (two-lane) and length metering. The lasers for the width measurement are adjustable in their height and the lasers for thickness measurements are adjusatble in their width.

Short description:
The laser triangulation meters are built into a measuring frame which accommodates adjustments of the measuring devices for different slab widths and thicknesses. By means of the triangulation sensors the slab width and thickness is determined very exactly.
On two rollers in front of the measuring frame two incremental rotary encoders are mounted. The turns of the rolls are registered and with additional input of the laser meters, the length of the blocks is determined by both encoders.

For cooling purposes, the laser distance meters are implemented in air scavenged and water cooled housings. Fresh air is sucked in by a ventilator with an upstream filter (situated in the basement), transported and also divided over an air pipe to the measuring frame. The air is also conducted by separate lines to the laser housings. The scavenging air system serves to avoid dust deposits and the cooling plates are integrated in the housing for water cooling.

For these tasks the following types of triangulation meters are built into the measuring frame as follows:

  • Above the roller table: 2 sensors with a distance of 1150 mm
  • Underneath the roller table: 2 sensors with a distance of 700 mm
  • Sideways of the roller table: 1 sensor at each side (right and left) at a distance of 700 mm
  • Two incremental rotary encoders are adapted mechanically and mounted on two rolls