Process for washing and sorting solid residues generated from solid wastes incinerator

Abstract

A process for processing solid residual material that is generated from 1 from solid waste incinerator through a series of crushing and screening processes into homogenous and aggregate material, comprising the steps of (a) feeding the solid residual material to process through a feeder to a sorting unit comprising a plurality of vibration screens of different meshes for sorting the solid residual material into coarse particle size residual material, medium-size residual material, and fine particle size residual material; (b) reclaiming the coarse particle size residual material; (c) using a magnetic separator to remove ferrous metal material and then using a crusher to crush the remaining residual material and then delivering the crushed material to the sorting unit for sorting again; (d) carrying the fine particle size residual material by water through a water channel to a washing unit and keeping the fine particle size residual material in contact with water for about 1 minutes or more so as to let toxic substance be leached in water, and then removing the washed fine particle size residual material from the washing unit to a dewater equipment to dried homogenous stabilized aggregate material.

Description

BACKGROUND AND SUMMARY OF THE INVENTION [0001] The present invention relates to a processing process and more particularly, to a process for washing and sorting solid residues generated from the wastes incinerator so as to obtain homogenous and aggregate material for reuse. [0002] Following development of different industries and increase of consumption, waste material from factories, homes, offices, etc., are continuously produced, resulting in deterioration of the environment. Therefore, it is necessary to reduce the production of waste material and to reclaim useful material from waste material. Burning solid waste by means of incinerator is the procedure of reducing the size of waste material and the policy of environmental protection. About 15 to 20% of ash will generated from incinerator. Where 10% is so call bottom ash, and 90% is bottom ash roughly. Solid residues from burn incinerators are commonly buried in the earth, not for use. [0003] U.S. Pat. Nos. 5,308,368; 5,890,663...

AI Technical Summary

Benefits of technology

[0001] The present invention relates to a processing process and more particularly, to a process for washing and sorting solid residues generated from the wastes incinerator so as to obtain homogenous and aggregate material for reuse.

[0002] Following development of different industries and increase of consumption, waste material from factories, homes, offices, etc., are continuously produced, resulting in deterioration of the environment. Therefore, it is necessary to reduce the production of waste material and to reclaim useful material from waste material. Burning solid waste by means of incinerator is the procedure of reducing the size of waste material and the policy of environmental protection. About 15 to 20% of ash will generated from incinerator. Where 10% is so call bottom ash, and 90% is bottom ash roughly. Solid residues from burn incinerators are commonly buried in the earth, not for use.

[0003] U.S. Pat. Nos. 5,308,368; 5,890,663; 5,906,321; 5,992,776; 4,737,356 refer a combination of methods including crushing and sorting processes and adding of stabilized reagent for immobilization of useful materials from solid residues. However, there are odor and potential of pollutant leachate problem need to take care.

[0004] The present invention has been accomplished under the circumstances in view. It is therefore the main object of the present inventio

Problems solved by technology

Following development of different industries and increase of consumption, waste material from factories, homes, offices, etc., are continuously produced, resulting in deterioration of the environment.

However, there are odor and potential of pollutant leachate problem need to take care.

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