Sludge removal and impurity treatment system

Abstract

The invention discloses an impurity removal treatment system of sludge. The impurity removal treatment system comprises a hopper, a cutting device, a filtering device, a grinding device and a solid-liquid separator; the hopper is of a funnel structure, and the lower end of the hopper is opened to discharge the sludge; the cutting device comprises a shell, a left roller and a right roller, whereinthe left roller and the right roller are arranged inside the shell, and the left roller and the right roller are driven by a motor to rotate in opposite directions so as to form rolling on the discharged sludge; the filtering device comprises a rotating cylinder and a pipeline arranged in the rotating cylinder in a spiral mode, the pipeline is of a net structure to filter sludge, and a motor is arranged outside the rotating cylinder; the grinding device comprises an upper grinding disc and a lower grinding disc, a feeding hole is formed in the center of the upper grinding disc, the upper grinding disc is driven by a motor to rotate so as to grind the sludge, grooves are formed in the upper surface of the lower grinding disc, a chemical cavity for containing a chemical reagent is arranged in the lower grinding disc, a hydraulic pump is arranged in the chemical cavity, chemical spraying holes are formed in the grooves, and the hydraulic pump communicates with the chemical spraying holesso that the chemical reagent can be sprayed into the grooves to be mixed with the sludge; and the solid-liquid separator is connected with the grinding device for solid-liquid separation.

Description

technical field [0001] The invention relates to the technical field of environmental protection, and more specifically, the invention relates to a sludge removal impurity treatment system. Background technique [0002] Sludge contains impurities such as heavy metals, plastics, organic matter, and bacterial organisms. Therefore, it is necessary to treat the sludge before using it to make cement and fertilizer or discharging it into nature. In the prior art, sludge and water are mainly mixed to obtain mud with low viscosity, and then the mud is mixed with chemical reagents, and the chemical reagents make the heavy metals in the mud separate from the liquid phase, thereby completing the removal of heavy metals. [0003] Such treatment technology has the following problems: First, sludge and water are usually mixed by stirring, the mixing efficiency is not good, and the effect is not good enough, because part of the sludge is lumpy, and the stirring blades cannot quickly and eff...

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Problems solved by technology

[0003] Such treatment technology has the following problems: First, sludge and water are usually mixed by stirring, the mixing efficiency is not good, and the effect is not good enough, because part of the sludge is lumpy, and the stirring blades cannot quickly and effectively remove the sludge. The mud is dispersed, and the heavy metals in the sludge cannot be effectively dispersed in the liquid; secondly, the chemical reagents and the mud are mainly mixed by rotating the drum, which is slow in efficiency and difficult to accurately combine the chemical reagents with the heavy metals; and , the existing technology can only remove heavy metals, and it is difficult to remove impurities such as plastics, organic matter, and bacteria and microorganisms together

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