SU1535630A1 - Method of separating unburnt fuel from ash-slag mixture - Google Patents

Abstract

The invention relates to the enrichment of minerals and can be used in the separation of unburned fuel particles from ash and slag mixtures of thermal power plants in the process of preparing them for use in the production of building materials. The goal is to increase the purity and quality of the ash product with particles smaller than 0.16 mm. The suspension is prepared by mixing with water at a ratio of solid to liquid from 1: 0.8 to 1: 1.1. Then the suspension is subjected to vibration. Vibrating action is carried out at an oscillation frequency of 170-190 Hz with an amplitude of 0.05-0.1 mm. The suspension is stratified in density. The light carbon particles are concentrated in the upper part of the suspension. The heavy ash particles are concentrated in the lower part of the suspension. Then a layer-by-layer mechanical removal of products is performed. After that, the products are subjected to dehydration. The resulting ash product is suitable for the production of building materials.

Description

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Claims (1)

Claim A method of separating unburned fuel from an ash-slag mixture, including preparing a suspension by stirring with water at a ratio of solid To liquid from 1: 0.8 to - 1: 1.1, precipitating the mixture by vibration exposure of the suspension, layer-by-layer mechanical removal of the precipitated 2Q fractions and subsequent dehydration of the fractions, characterized in that, in order to improve the quality and purity of the ash product with particles finer than 0.16 mm, the ash and slag mixture is subjected to vibrational influence at an oscillation frequency of 25 170-190 Hz and an amplitude of 0.05-0.1 mm. Compiled In Trinity Editor N . Horvat Gehred I. Veres Corrector N. Gorva Order 72 Circulation 453 Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology 113035, Moscow, Zh. 35. Raushskaya nab., D. 4, '5 Production and Publishing Plant "Patent", Uzhhorod, st. Gagarin. 10'