Polygonal inner cylinder and three-return-stroke sand dryer with same

Abstract

The invention discloses a polygonal inner cylinder, and relates to the field of sand dryer equipment. The polygonal inner cylinder comprises an inner cylinder body, inner cylinder sand raising plates are arranged on the inner wall of the inner cylinder body, the inner cylinder body is formed by splicing a plurality of inner cylinder plates which are bent inwards, middle cylinder sand separating plates are uniformly arranged at the positions, corresponding to splicing positions, of the outer side wall of the inner cylinder body around the axis, and a plurality of inner cylinder anti-attrition strips are arranged on the outer side wall of the inner cylinder body in the axial direction. The problem that an existing sand dryer inner cylinder is inconvenient to install and maintain is solved, meanwhile, sanding steel is replaced by sanding sand through the anti-attrition strips on the outer side wall of the inner cylinder body, and the abrasion service life of the abraded face of the outer wall of the inner cylinder is prolonged.

Description

technical field [0001] The invention relates to the field of sand drying machine equipment, in particular to a polygonal inner cylinder and a three-pass sand drying machine made of the same. Background technique [0002] With the continuous development of industrialization, the dryer, as an efficient drying equipment, is widely used in the drying of materials such as sand and mortar. For the implementation of the optimal ratio of cement, the country has promoted the construction of construction dry powder ready-mixed mortar stations with good environmental protection effects in recent years. One of the raw materials used in the dry powder ready-mixed mortar station is dry sand, which requires the use of a wet sand dryer. Initially, the single cylinder dryer was used in the industry. Due to its poor drying effect, large heat loss and high energy consumption , with low output, it was quickly replaced by three-pass dryers. However, due to the structure of the three-pass dryer...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a polygonal inner cylinder and a three-pass sand drying machine made of it, aiming to improve the problem that the existing technology is difficult to replace the inner cylinder parts of the existing three-pass dryer after wear and tear, and at the same time achieve sanding through the wear-reducing strip Replace sanded steel to improve the wear life of the outer surface of the inner cylinder

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