PL10481B1 - A method for treating waste, e.g. household garbage, industrial waste, sewage residues, etc., into slag sand of various grain sizes. - Google Patents

Description

The present invention aims at the continuous processing of waste that forms waste, and more particularly municipal waste, e.g. household rubbish, industrial waste, residues in sewers, etc., into gels suitable for construction purposes, such as the usefulness of the product obtained is achieved in each case irrespective of the thermal properties of the waste, and the produced slag does not require any special grinding. Attempts have been made to achieve this goal, however, from the above-mentioned residues, only the slag in pieces has been obtained by the method of burning which for further use required grinding and desorting, and thus a considerable expenditure of processing and machine costs. In addition, the goodness of the slag depended on the thermal value of the processed waste, and especially from the types of rubbish containing a lot of brown coal ash, the method of burning it was not possible to obtain a suitable slag at all. The invention is aimed at obtaining the desired Slags of any grain size and uniform pressure resistance greater than that of the products obtained so far. To this end, according to the invention, the waste to be processed is introduced into a slightly inclined cylindrical furnace, in which flammable waste components are burned at the front and the slag that forms is overheated further down the furnace until it softens or even melts. Overheating can be done by heating the outside with an outer mantle of a furnace or by using internal heating. If the waste is subjected to a rotating motion during combustion and overheating, e.g. by rotating the furnace, the loosened slag tears and forms into cavities the size of which depends on the faster or slower rotation of the furnace. The combustion in the first part of the furnace during the subsequent overheating is subjected to a high and uniform temperature, so that the substances forming the iron are completely foamed up, such as, for example, silicic acid, lime, clay, iron, etc. the result is a final product with a uniform and highest possible strength. PL

Claims (1)

1. Patent claim. A method of treating waste, e.g. household garbage, industrial waste, sewage residues, and hence into slag sand of various grain sizes, characterized by the fact that the waste burns in the front of the inclined rotary kiln and the slag is formed it overheats in the rest of the furnace to a degree of softening or melting, so that when the furnace is rotated, the aggregates break and lump into grains. M u s a g G e s e 11 s c h a f t f ii r d e n Bau von Muli- und Schlacken- V e r w e r t u n g s a n 1 a g e n, Akt i en gesel 1 schaf t. Adolf Grote. Deputy: I. Myszczynski, patent attorney. Print by L. Boguslawski, Warsaw. PL