TH87177B - Method and machine for removing salt from stove bottom ash. and conversion to Raw materials for cement - Google Patents

Abstract

To remove bottom ash salts, while reducing operating costs and machines, to use bottom ash as raw materials for cement or the like, to bottom ash B, water W1 is added, the weight of which is more than or equal to 0.1 times but less than the weight of bottom ash B; the lumps therein are dispersed; the bottom ash slurry S1 after lump dispersion is classified, and the fine particle slurry S2 obtained by classification is washed with water to remove bottom ash salts B. The coarse particles C obtained by classification can be used as raw materials for cement. Water can be sprayed to the bottom ash slurry S1 at classification, the classification point can be more than 0.5 mm but less than or equal to 1 mm; acidic gas G can be added to the fine particle slurry S2 at water washing. The coarse particles C obtained by classification can be used as raw materials for cement. After air-blowing A, the coarse particles C or fine particles F obtained by solid-liquid separation are washed with water. The fine particle slurry S2 obtained by sorting after or while washing with water can be used as a raw material for cement.

Claims (1)

1. The sol-gel process comprises the following operations: a) preparing an aqueous solution or a hydro-alcoholic solution as a suspension of at least one compound having the formula Xm - M - (OR)n-m, where M is a cation belonging to the 3rd, 4th and 5th groups of the periodic system of elements, n is the cation valence, m is 0,1 or 2, X is R1 or OR1 ,R and R1 are hydrocarbon radicals, same or different, having the number of carbon atoms up to 12; b) :