Method for producing single coal compacts suitable for coke chambers
Coal compacts which are suitable for coking in coke oven chambers are prepared by pressing and compacting coal in a pressing device having a design which shapes the surface of the coal compacts to provide higher surface area. Already compacted coal blocks can be pressed to generate the surface shape. The resulting coal compacts exhibit significantly improved properties during the coking process, resulting in improved gas and heat exchange. A device for compacting coal preferably contains a plate provided with shaping elements on the pressing surface.
1. A method for compacting coal into coal compacts which exhibit reduced coking time in a coke oven chamber, comprising pressing and compacting coal with a moulding pressing device into one or a plurality of coal compacts, wherein
the moulding pressing device comprises a mould that shapes the surface of the coal compacts to provide a structured shape on the surface that is not planar and thus possesses an increased surface area in comparison to coal compacts which are not structured on the surface, and
the moulding pressing device is provided with plates mounted perpendicularly on it from four sides so that an enclosure is created which is filled for compacting and pressed with other moulding plates, and the laterally mounted plates also bear structure-providing moulding elements at the inner walls and the plate on the non-frontal side of the coal cake is also provided with structure-providing moulding elements.
2. The method of claim 1 , wherein the coal compacts are produced from a compacted coal block by cutting it apart and then pressing with the moulding pressing device.
3. The method of claim 1 , wherein the coal is compacted to a compacting density of up to 1200 kg/m 3 .
4. The method of claim 1 , wherein the moulding pressing device provides coal compacts with a wavy surface.
5. The method of claim 1 , wherein the moulding pressing device provides the coal compacts with channels that extend into the coal compacts.
6. The method of claim 5 , wherein the moulding pressing device provides the coal compacts with slotted or round channels extending into the coal compacts.
7. The method of claim 5 , wherein the channels extend totally through the coal compacts.
8. A device for compacting of coal into coal compacts suitable for use in a coke oven chamber by the method of claim 1 , comprising a device which supplies coal to a moulding pressing device, the moulding pressing device comprising a plate with moulding elements extending therefrom.
9. The device of claim 8 , wherein one or several press-in stingers are mounted on the plate.
10. The device of claim 8 , wherein press-in elevations are mounted on the plate.