Heavy foreign matter removing device

Abstract

The invention relates to a heavy foreign matter removing device, which comprises a feeding device A arranged at the end of a feeding vibration groove; the feeding device A is connected with the side face of a vertical air distribution chamber B; the lower end of the vertical air distribution chamber B is connected with the upper end of an air uniformizing device C, and the two ends of the air uniformizing device C are both connected with bifurcated pipelines; and each bifurcated pipeline is connected with a circulating fan through an air supply pipeline, and a heavy foreign matter conveying device D is located at the bottom of the air uniformizing device C. By greatly changing the flight path of materials, a heavy foreign matter is separated from materials through the gravity of the heavyforeign matter and then automatically discharged through an automatic device, tobacco leaf caking and tobacco stems can be well removed, and meanwhile, when the materials and the light foreign matterare blown upwards, the cross section of the vertical air distribution chamber can be changed by operating a pipeline reducing mechanism, so that the flow and the air speed of air are changed, the airsupply requirements under different conditions are met, and flexibility and variability are achieved.

Description

Technical field [0001] The present invention belongs to the field of tobacco production machinery, and is specifically involved in a heavy foreign matter removing device, in particular a tobacco heavy foreign matter removal device. Background technique [0002] There are many patented patents used in the tobacco foreign matter exclusion device, such as the practical utility model of CN205324175U, which discloses a centralized air-in-air selection with circulating wind, and uses a circulating wind to deliver horizontally. The material is transported in the form of a waterfall, and then the blow is provided in the waterfall. When the material passes through the blow, the material quality is lighter, it will be changed to the flight trajectory, and the other conveyor conveyed in the horizontal direction; Due to the large quality of heavy foreign matter, the wind is not easy to change its flight trajectory, so heavy foreign abortion will continue to keep the parabolic trajectory down...

AI Technical Summary

Problems solved by technology

[0002] There are many kinds of throwing and removing devices currently known for tobacco foreign matter removing devices. For example, the utility model patent with the notification number CN205324175U discloses an in-situ winnowing machine with circulating air, which uses circulating air to transport horizontally The material is parabolically conveyed in the form of a waterfall, and then a blower is set inside the waterfall. When the material passes through the blower, because the material is lighter in weight, the flight trajectory will be changed by the wind and reach another conveyor that is also conveyed in the horizontal direction; and Due to the high quality of the heavy foreign matter, the wind is not easy to change its flight trajectory, so the heavy foreign matter will continue to move downward on a parabolic trajectory, thereby achieving the purpose of separating the heavy foreign matter from the material. However, the agglomerated tobacco leaves and tobacco in the material The quality of the stems is not much different from that of normal tobacco leaves. This method cannot effectively remove agglomerated tobacco leaves and tobacco stems, resulting in a low removal rate of such heavy foreign matter, which affects the effect of removal; another example is the notification number CN204938186U The utility model patent discloses an adjustable air-supply device for removing miscellaneous materials and throwing materials. In addition to the circulating air mechanism, adding a supplementary fan alone not only increases the cost of use, but also increases energy consumption and increases the floor area. It also cannot meet the requirements of simple maintenance and convenient use.

There are also some belt-type cleaners that use photoelectricity and lasers. In principle, it is determined that this method cannot remove heavy foreign matter; moreover, tobacco leaves and dust will cover the optical window, resulting in a reduction in the removal effect; agglomerated tobacco leaves are easy to block In order to improve the removal effect, some cigarette factories especially prevent metal and other hard impurities from flowing into the shredder process section and damage the downstream equipment and install photoelectric impurity removal equipment and sorting devices at the same time. Not only the equipment is complicated, the floor area is large, the energy consumption is increased, and the maintenance workload is increased, but the final elimination effect is not ideal

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