Screening machine for heavy metal in sandy soil

Abstract

The invention discloses a screening machine for heavy metal in sandy soil. The screening machine comprises a gear distribution box, a material distribution device, a washing device and a screening and recycling device, wherein a power output shaft of the gear distribution box is used for outputting power to a plurality of screening and recycling units respectively by a power transmission mechanism so as to screen and recycle the heavy metal in the sandy soil; at least one of the plurality of screening and recycling units is at a recycling state; in a recycling process, the one screening and recycling unit is at a conveying state and the other screening and recycling units are at a screening state; in a screening process, the one screening and recycling unit is at a static state; the material distribution device is used for carrying out material distribution on the screening and recycling units at the screening state under the control of power output of the gear distribution box; the washing device is used for carrying out washing and material collection on the screening and recycling units at the recycling state under the control of the power output of the gear distribution box. The screening machine for the heavy metal in the sandy soil has high screening efficiency and high recovery rate; the whole operation of the equipment is stable and reliable and the abrasion is reduced; the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, in particular to a heavy metal screening machine for sandy soil. Background technique [0002] Shahe has a long history of gold panning, and there are many types of gold panning equipment, such as large gold dredgers, spiral concentrators, etc. Under the premise of overcoming mercury pollution, the existing technology uses mercury separation, which is widely used because of its high efficiency, especially low Contaminated gold extraction equipment is very popular. The applicant applied for a double-slot river sand concentrator for gold sand and iron ore-rich sand deposits. The dual-slot alternate method is used to improve the beneficiation efficiency. In the above-mentioned technical proposal, its structure is still not reasonable enough , resulting in unstable operation of the equipment, high failure rate, short service life, and work efficiency and recovery rate are not up to the correspond...

AI Technical Summary

Problems solved by technology

The applicant applied for a double-slot river sand concentrator for gold sand and iron ore-rich sand deposits. The dual-slot alternate method is used to improve the beneficiation efficiency. In the above-mentioned technical proposal, its structure is still not reasonable enough , resulting in unstable operation of the equipment, high failure rate, short service life, and work efficiency and recovery rate are not up to the corresponding requirements

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