Scraper conveyors “OZGW”

Scraper conveyors (including slags removal conveyors) have been produced in “ZUK Stąporków” for over 40 years.

Purpose and technical description

Scraper conveyor of OZGW type, it is double trough system with upper material dragging. Upper trough applies for extinguishing and transportation of slag for another type of conveyor, and bottom tank applies for conveyor belt going back “by dry”. Such construction of the slag trap allows for current evaluation of the level of using the belt and eliminates excess floating fractions of ashes and slag.

Such type of slag trap is produced in two basic widths of tank: 570 mm, 770 mm, and lengths from 3 m to 25 m. The dimension measures of device depend on the type of boiler and spatial conditions connected with construction of remaining transportation equipment.

Shafts with rolling bearing. Optional extra equipment includes: drain valve, water level regulating system, motion sensor, wire emergency switches. Conveyors are equipped with protection shields of the horizontal and inclined trough.

Technical data

Efficiency of conveyor: in Bu 570 mm – to 2,5 m3/h; in Bu 770 mm – to 3,5 m3/h,

Power of engine depends on overall length and width of tank and is between 0,75 kW and 1,5 kW.

There are dimensions of device such as: overall length, width of the trough, height to the transmission shaft, that are for arranging to the designer of deslagging system or directly to the user.


The tank of slag trap 2. Front shaft 3. Rear shaft 4. Drive unit 5. Conveyor belt 6. Sliding metal sheet or basalt coating 7. Removable slides or guide roller 8. Float chamber 9. Draining valve