Buffering type air hoister

Abstract

The invention relates to a buffer-typed pneumatic lifter. The buffer-typed pneumatic lifter essentially consists of a motor 1, an air blower 2, a discharger 5, a dust collector 12, a pressure discharging tube 6 and a material acceptor and is characterized in that the air blower 2 which is connected with the motor 1 is directly installed at the center of the top part of the discharger 5; a feeding tube consists of a buffer tube 7 of an upper section and an accelerating tube 8 of a lower section, a feeding base 10 is arranged under the accelerating tube 8 and is provided with a plurality of air inlets 20 and a plurality of feeding ports 21; an adjusting disc 17 of the end port of the feeding base 10 is fixed on a ground fixed disc 18 inside a material accepting disc 11, and the lower end of an outer sleeve 9 is also provided with feeding ports 22 which are matched with the feeding ports 21 mutually. The buffer-typed pneumatic lifter has the advantages that (1) the pressure of the materials can be quickly reduced after being buffered by the buffer tube 7 after the accelerating lift of the accelerating tube 8, therefore, the impact between the materials and the top part of the discharger is reduced and the crushing rate of the material is effectively reduced; (2) wind speed is lowered after the material is buffered by the buffer tube 7, the resistance of wind pressure is decreased and wind resistance loss is reduced; (3) since the weight of the whole machine is fixed on the ground fixed disc, the gravity center of the whole machine is stable, the lifter is not needed to be hung on the beam of a house by an iron wire, and the usage is safe and reliable.

Description

technical field [0001] The invention relates to a buffer type air hoist used for lifting granular materials (paddy, wheat, brown rice, corn and feed, etc.). Background technique [0002] The material receiving device on the air lifter with the patent No. 90221521.3 in the prior art is mainly composed of a feed pipe and an outer casing; the connection and structure between them are: the lower end of the outer casing is connected to the feeding chassis and installed In the discharge pit for granular materials, the upper end of the feeding pipe is connected to the unloader on the elevator, and the lower end of the feeding pipe is inserted into the outer casing. There is a gap between the outer wall of the feeding pipe and the inner wall of the outer casing, causing the feeding pipe It cannot be stably fixed on the ground, so the weight of the air hoist composed of the unloader connected to it, the motor on the unloader, the fan and the dust collector can only be hoisted on the ...

AI Technical Summary

Problems solved by technology

[0002] The material receiving device on the air lifter with the patent No. 90221521.3 in the prior art is mainly composed of a feed pipe and an outer casing; the connection and structure between them are: the lower end of the outer casing is connected to the feeding chassis and installed In the discharge pit for granular materials, the upper end of the feeding pipe is connected to the unloader on the elevator, and the lower end of the feeding pipe is inserted into the outer casing. There is a gap between the outer wall of the feeding pipe and the inner wall of the outer casing, causing the feeding pipe It cannot be stably fixed on the ground, so the weight of the air hoist composed of the unloader connected to it, the motor on the unloader, the fan and the dust collector can only be hoisted on the girder of the house with iron wires. When the hoist is working, due to the continuous operation of the motor and fan, the unloader of the air hoist will be displaced after a long time, which will easily cause wear and damage to the feeding pipe. The original feeding pipe has no air and material concentration ratio adjustment Function, if the specific gravity of different materials is inconsistent, it will cause low lifting efficiency and waste power loss

In addition, since the upper and lower thickness of the feed pipe is the same, not only the wind resistance is caused, but also the speed of the air hoist is more than 20 meters per second, the speed of the granular material entering the feed pipe remains unchanged, and the granular material in the unloader due to The speed is too fast and the impact is severe, resulting in material injury and increased breakage rate

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