Engineering equipment and method for stabilization treatment on waste slag containing heavy metal

Abstract

The invention discloses engineering equipment and a method for stabilization treatment on waste slag containing heavy metals. The engineering equipment comprises a feeding hopper, a feeding machine, a crushing machine as well as a reagent cabin and a metering control system, wherein the feeding machine is connected with the feeding hopper through a conveying machine A; the crushing machine is connected with the feeding machine through a conveying machine B; an electric vibration valve is arranged at the lower part of the feeding hopper; a suspended type electromagnet is arranged at the front section of the conveying machine A; the crushing machine is connected with a metering hopper through a conveying machine C; the feeding machine is further connected with the metering hopper through a conveying machine D; the metering hopper is connected with a stirring machine; a dust collection device is arranged at the top of the reagent cabin; the reagent cabin is connected with the stirring machine through a conveying machine E; the metering control system is connected with the metering hopper and is further connected with the conveying machine C, the conveying machine E and a water pump. The method is used together with the equipment, the high efficiency of the equipment can be brought into play, the stabilization degree is high, the effect is good, soil containing heavy metals can be stabilized, the leaching toxicity of the heavy metals in soil can be reduced, and the secondary pollution to the environment can be reduced.

Description

technical field [0001] The invention relates to an engineering equipment and method for the stabilization treatment of waste residue containing heavy metals. Background technique [0002] Heavy metals refer to metals with a specific gravity equal to or greater than 5.0, such as Fe, Mn, Zn, Cd, Hg, Ni, Co, etc.; As is a metalloid, but due to its chemical properties and environmental behavior are similar to heavy metals, Therefore, when discussing heavy metals, arsenic is often included, and some directly include it in the scope of heavy metals. Heavy metal pollution refers to environmental pollution caused by heavy metals or their compounds. It is mainly caused by human factors such as mining, exhaust gas discharge, sewage irrigation and use of heavy metal products. Due to the addition of heavy metals into the ecological environment by human activities, the heavy metals in the ecological environment are significantly higher than the original content, resulting in the deteri...

AI Technical Summary

Problems solved by technology

With changes in the external environment such as rainwater leaching, heavy metals in waste residues are likely to migrate to nearby soil, water bodies or groundwater, causing secondary pollution

[0004] Heavy metal-containing waste slag pollution has entered a concentrated and frequent period, posing a serious threat to the health of residents and the safety of agricultural products. However, at present, the actual engineering application of special engineering complete sets of equipment for waste slag stabilization treatment is very rare

In addition, different agents have different mechanisms of action on heavy metals in the treatment. The existing technology is basically to study the removal of a single heavy metal in the soil. The effect of one metal is more significant, but the removal effect of other heavy metals for complex heavy metals is not obvious

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