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Arm type automatic screening equipment and method for screening granularity of ore pulp in dressing plant through arm type automatic screening equipment

A technology of automatic screening and sorting equipment, applied in chemical instruments and methods, sieving, solid separation, etc., can solve the problems of insufficient depth screening and low efficiency, and achieve the effect of satisfying industrial production, simple process and convenient operation.

Active Publication Date: 2022-05-10
CENT SOUTH UNIV
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AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects of low efficiency and insufficient depth screening in the existing vibratory screening technology, the purpose of the present invention is to provide an arm-type automatic screening equipment that can realize automatic screening of ore samples in mineral processing plants with high efficiency, reliability and low cost. , the device can realize the automatic operation of sampling and screening, easy to operate and beneficial to industrial application

Method used

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  • Arm type automatic screening equipment and method for screening granularity of ore pulp in dressing plant through arm type automatic screening equipment

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Embodiment 1

[0036] Utilize the arm-type automatic screening equipment of the present invention and the method for processing ore pulp in a concentrator to process the ore pulp of a mine in Chenzhou, Hunan, open the pulp inlet, rinse water and start the swing system. The swing process lasts for 15 minutes, and the pulp is discharged after the swing is stopped. and collected, and weighed after drying for each particle size to obtain -800 mesh 417.5g, +800 mesh ~ -400 mesh 51.2g, +400 mesh ~ -200 mesh 33.9g, +200 mesh 225.7g, the proportion of each particle size - 800 mesh 57.3%, +800 mesh to -400 mesh 7.03%, +400 mesh to -200 mesh 4.65%, +200 mesh 30.9%. On-site workers manually sieved 53.9% of the grades at -800 mesh, 7.87% at +800 mesh to -400 mesh, 5.23% at +400 mesh to -200 mesh, and 33% at +200 mesh. The overall screening effect was close.

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Abstract

The invention discloses arm type automatic screening equipment and a method for screening the granularity of ore pulp in a dressing plant through the arm type automatic screening equipment. The arm type automatic screening equipment comprises a swing system, a sleeve screen box and a sleeve screen flushing water system. The swing system body comprises a reciprocating motion part composed of an eccentric wheel and a push rod mechanism and a swing part with a rubber spring as a connecting piece. The swing part is composed of a fixed rack, a movable rack and a rubber spring, the fixed rack is connected with the movable rack through the rubber spring, the eccentric wheel rotates along with the motor to generate unbalanced mass force to enable the movable rack to swing, and screening is carried out in cooperation with sleeve screen washing water. After screening is completed, the whole sleeve screen is rotated by an angle through the stepping motor, the pulp is conveniently taken away by washing water, and the pulp is discharged from the pulp discharging opening. The device can simulate screening operation in an actual dressing plant, replaces repeated mechanical operation of workers, and can realize automatic screening of ore pulp; the method for screening the ore pulp through the device is simple in process and convenient to operate, and industrial production is met.

Description

technical field [0001] The invention relates to an arm-type automatic screening device, in particular to an arm-type automatic screening device and a method for screening the particle size of ore pulp in a mineral processing plant, belonging to the technical field of mineral processing. Background technique [0002] Since the flotation technology was produced at the end of the 19th century, after more than one hundred years of development, the technology has been continuously developed and improved, and flotation has become the most important means of mineral processing. The particle size of minerals is one of the key factors affecting mineral flotation. Studies have shown that the optimum particle size range for froth flotation is between 5 and 75 μm. The upper limit of flotation particle size for high-density minerals is 0.1-0.3mm; for low-density minerals it is 0.3-0.5mm. Mineral particles that are too fine or too coarse are not conducive to the flotation recovery of mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/28B07B1/42B07B1/46B07B1/55
CPCB07B1/28B07B1/42B07B1/46B07B1/55B07B2201/04Y02P10/20
Inventor 孙伟肖遥杨越韩海生彭建王丽唐鸿鹄刘润清
Owner CENT SOUTH UNIV
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