Pretreatment device for soil remediation

Abstract

The invention discloses a pretreatment device for soil remediation. The pretreatment device comprises a crushing cavity, a sieve plate and a lifting cavity; a feeding hopper is arranged at the upper end of the crushing cavity; a rotating shaft A is arranged on the right side of the feed hopper, penetrates through the upper end of the crushing cavity and is connected to the crushing cavity in a rotating mode; two sets of cutting knives are symmetrically arranged on the rotating shaft A; rotating rods are arranged on the inner sides of the cutting knives; the lifting cavity is formed in the right side of the crushing cavity; the sieve plate is further arranged in the crushing cavity in a sliding mode; supporting rods are fixedly arranged at the lower end of the sieve plate; sliding grooves are formed in the lower ends of the supporting rods; and sliding blocks are connected to the sliding grooves in a sliding mode. The pretreatment device has the advantages that the design is novel, crushing are simultaneously carried out through the cutting knives arranged in the horizontal direction and the cutting knives arranged in the vertical direction, so that the crushing efficiency of soil is improved, the crushing is good, and therefore the contact between the soil and an agent can be improved, the soil remediation effect can be better, the time of soil remediation and pretreatmentcan be shortened, and the working efficiency can be improved.

Description

technical field [0001] The invention relates to the field of soil treatment, in particular to a soil treatment pretreatment device. Background technique [0002] Due to the rapid growth of population and the rapid development of industry, solid wastes are continuously stacked and dumped on the soil surface, harmful waste water is continuously infiltrated into the soil, and harmful gases and floating dust in the atmosphere are also continuously falling into the soil with rainwater, resulting in soil pollution. Soil pollutants can be roughly divided into two categories: inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acids, alkalis, heavy metals, salts, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium and fluorine, etc. Organic pollutants mainly include organic pesticides, phenols, cyanides, petroleum, synthetic detergents, 3,4-benzopyrene, and harmful microorganisms brought by urban sewage, sludge...

AI Technical Summary

Problems solved by technology

However, in the actual operation process, the soil crushing efficiency is low, and a lot of processing time is wasted. At the same time, the soil crushing effect is poor, and the uneven crushing leads to the inability of the agent to fully mix with the soil, and the soil treatment effect is poor.

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