Air-screen specific gravity separator

Abstract

The invention relates to an air-screen specific gravity separator. The air-screen specific gravity separator comprises a frame, a supporting rod which is fixedly connected with the frame, a lifter which is arranged on the frame, a vertical air screen which is connected with the lifter, a dust removing system which is connected with the vertical air screen, a specific gravity screening device which is arranged below the vertical air screen and a power distribution box which is arranged on the frame; the air-screen specific gravity separator is characterized in that a front half screen and a front half screen driving device which is connected with the front half screen and the specific gravity screening device are also arranged between the vertical air screen and the specific gravity screening device; the front half screen is additionally arranged between the vertical air screen and a specific gravity screening part, namely a screening mechanism is added; before a material enters the specific gravity screening device, most of small crushed particles are effectively removed from the material, so the crushed particles in the material falling to a specific gravity platform surface are greatly reduced, the load of the specific gravity screening part is alleviated and the specific gravity separation effect is enhanced.

Description

technical field [0001] The invention relates to a cleaning machine, in particular to an air screen specific gravity cleaning machine. Background technique [0002] At present, most of the material screening machines on the market are materials directly falling into the specific gravity screening device for screening after air selection, such as the invention patent with application number 200720103058.4, which has a walking device, an air screen, a specific gravity screen, a classifying screen, a cyclone dust collector, Centrifugal fans, bellows, etc. During the material screening process, the material enters the specific gravity screen after air selection, and then enters the grading screen. The material after winnowing still contains a large amount of crushed and tiny particles, which will cause blockage of the scale holes of the specific gravity platform, or directly leak down and affect the screening results. Together, a part of slightly larger particles will stay in th...

AI Technical Summary

Problems solved by technology

The material after winnowing still contains a large amount of broken particles and tiny particles, which will cause blockage of the scale holes of the specific gravity platform, or directly leak down to affect the screening results. Together, a part of slightly larger particles will stay in the middle of the specific gravity platform, which will affect the specific gravity screening effect

[0003] Similar equipment in the same industry in the market also has a screening structure on the upper side of the specific gravity table, but the canceled vertical air screen only adds a suction hood, the air selection effect is greatly reduced, and the vibration source is driven by a separate eccentric, balanced Poor performance, easy to cause the whole machine to vibrate and increase the failure rate of the equipment

Some manufacturers have added a screen box with a screening distance of two meters on the upper side of the specific gravity table, but due to the limited height, the vertical air screen has also been cancelled, which cannot remove light impurities in the raw material. The upper screen box uses a high-frequency vibration motor as the vibration source, the lower specific gravity table adopts eccentric drive, the vibration of the whole machine is not stable, the overall screening effect is poor, and the moldy grains cannot be effectively removed

Images