Tandem type jigger system capable of improving sorting efficiency of household garbage incinerator slag

Abstract

The invention discloses a tandem type jigger system capable of improving sorting efficiency of household garbage incineration slag, and relates to the technical field of jiggers. The system comprises the following steps: 1, feeding material into the tandem type jigger system, 2, carrying out a first-stage jigging A and second-stage jigging tandem process on the fed material, 3, carrying out third-stage concentrate recovery jigging, sawtooth waves firstly rise in a straight line, then steeply fall, then rise and then steeply fall, and the process is repeated, so that water is used as a mineral separation medium, and separation is carried out according to the specific gravity (density) difference of useful minerals and gangue. According to the system, a third stage uses two special one-square-meter jiggers which are cascaded into a two-square-meter jigger with a bed, a special iron ore cushion layer is laid on the screen surface, tailings are directly discharged to enter closed-loop beneficiation, water is directly discharged after a concentrate is separated through a three-stage desilting sand water hopper, and copper sand is directly recycled from a concentrate in a sedimentation hopper, the separation efficiency of the jigger in gravity separation is improved, and the working efficiency of the equipment process is improved.

Description

technical field [0001] The invention relates to the technical field of jigging machines, in particular to a series jigging machine system for improving the efficiency of slag sorting in domestic waste incineration. Background technique [0002] Domestic waste incineration power generation has been widely used in my country. Its advantages are: after incineration, the volume of waste can be reduced by more than 70%, which can solve the problems of high land cost of landfill and inability to meet the landfill capacity requirements. The high-temperature gas produced by waste incineration Energy can be recovered and reused. Incineration slag is a by-product of the waste incineration process, mainly including residues on the grate and particles falling from between the grate, and its output accounts for about 20%-30% of the original waste mass. Since waste is a metal substance in social life At the end point, the fine-grained slag is regarded as the raw material for beneficiation...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a tandem jig system that improves the efficiency of slag sorting in domestic waste incineration, one purpose of which is to have the function of improving the working efficiency of the equipment and solve the traditional non-magnetic heavy metal recovery process in the comprehensive utilization of slag. Generally, the recovery process of primary jigging + secondary jigging + shaking table is adopted. The structure of the shaking table is more complicated, the operation is not convenient, the maintenance rate is extremely high, and the productivity is also low, which affects the working efficiency of the equipment; One purpose is to solve the problem that in the recovery process of primary jigging + secondary jigging + shaker, the equipment occupies a large area of ​​the plant, which leads to an increase in the cost of the equipment, so as to reduce the occupied area of ​​the equipment and reduce the cost of the equipment.

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