A composite screw feeder made of high wear-resistant polyurethane material

Abstract

The invention discloses a highly abrasion-resisting polyurethane material composite spiral feeder which resolves the problem that an existing device is short in service life. The highly abrasion-resisting polyurethane material composite spiral feeder is characterized in that the front portion of a feeding end and the rear portion of a discharging end of a spiral shaft are respectively provided with a blocking disc; a polyurethane lining is lined inside an auger metal outer shell, a polyurethane lining is lined outside the spiral shaft, and polyurethane linings are lined on both surfaces of a spiral piece and the blocking discs. The raw materials of each polyurethane lining comprise prepolymer (MDQ23165), polyhydric alcohol (D20) and 1-4 butanediol (BDO), and the formula is that prepolymer: polyhydric alcohol: 1-4 butanediol = 100: 98.5: 11.85. The highly abrasion-resisting polyurethane material composite spiral feeder makes full use of the good performance of high polymer material polyurethane, integrates the good performance of the high polymer material polyurethane with the firmness of metal, can be widely applied to a material procedure switching process and design of accessories making direct contact with materials, and is suitable for various severe work conditions, the designed blocking discs prevent the materials from being accumulated on a bearing to a large extent and reduce abrasion to the bearing from the materials, and a product is stable in quality and long in service life.

Description

technical field [0001] The invention relates to a short-distance material conveying and lifting equipment, more precisely a screw feeder made of new materials. Background technique [0002] The screw feeder is a kind of equipment used for conveying short-distance powdery and granular materials. At present, both at home and abroad are driven by a spiral auger welded by a metal cylinder frame, carbon steel or wear-resistant cast steel, and a motor reduction box. The material enters the cylinder from the feed inlet, and is continuously pushed by the non-stop rotating auger screw until it is discharged from the auger outlet, completing the transfer or lifting process of the material. Its advantage is that it is convenient and fast, and can meet the requirements of any harsh working conditions. However, when used for a long time, especially when the material has a large particle size and high hardness, it is easy to cause the auger shell and the auger piece to wear quickly, esp...

AI Technical Summary

Problems solved by technology

However, when used for a long time, especially when the material has a large particle size and high hardness, it is easy to cause the auger shell and the auger piece to wear quickly, especially the material at the inlet and outlet is easy to accumulate at the bearing, causing long-term damage. The life of accessories is short, and it is not easy to repair and replace, which not only delays production but also brings a lot of waste

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