A low-concentration, fine-grained tailings dehydration treatment device and method

Abstract

The invention discloses a low-concentration, fine-grain tailings dehydration treatment device and method, which belong to the technical field of tailings dehydration treatment, and include an outer sleeve, a dehydration mechanism, a driving mechanism, a top cover and a feeding mechanism. The outer sleeve A dehydration mechanism is installed in the middle of the dehydration mechanism, and a drive mechanism is slidably connected to the side wall of the dehydration mechanism. A top cover is installed on the top of the outer sleeve, and a feeding mechanism is installed in the middle of the top cover; the dehydration mechanism includes a first-stage Dehydration chamber, secondary dehydration chamber, tertiary dehydration chamber, heating components, rack side, spiral flow channel, sand screen plate, mineral material outlet and baffle. The closed grading bin is used to heat and dehydrate the tailings ore. The concrete aggregate is used as the heat conduction medium. The contact area with the ore is large, the heat conduction is uniform and overheating is avoided, and the moisture inside the wet ore is dried with heat to achieve fast and efficient dehydration. Radioactive elements to build a safe dehydration environment.

Description

technical field [0001] The invention relates to the technical field of tailings dehydration treatment, in particular to a device and method for dehydration treatment of low-concentration and fine-grained tailings. Background technique [0002] The comprehensive utilization rate of industrial solid waste is about 60%, while the comprehensive utilization rate of tailings is less than 10% on average. Tailings have become the solid waste with the largest industrial output and the lowest comprehensive utilization rate in my country. With the continuous shortage of resources, the continuous improvement of environmental protection awareness and the promotion of national policies and economic support, in recent years, major scientific research institutes and enterprises have carried out special or systematic research on tailings resources, expanding the application of tailings field, improving the utilization rate of tailings. Experts predict that the comprehensive utilization of ...

AI Technical Summary

Problems solved by technology

Tailings can also replace iron powder as cement clinker production, concrete aggregates, etc. Before the tailings need to be used, sampling multi-element analysis, radionuclide limit detection, tailings classification dehydration, comprehensive utilization of tailings, currently The equipment and method of mine dehydration are used for ores that do not contain radioactive elements. Wet ores containing radioactive elements are usually stored in a radiation-proof box made of barium sulfate as raw material. Barium sulfate cannot be heated, so that the ores containing radioactive elements cannot be efficiently and quickly dehydration

Images