Screw sand washer with wear resistant composite bearing

Abstract

The invention discloses a screw sand washer with a wear resistant composite bearing. The screw sand washer comprises a transmission device, a shell and a spindle system fixed in the shell; a discharge port is arranged at the front end of the shell while a sand-washing tank is arranged at the back end of the shell; the spindle system comprises a spindle provided with screw blades; the spindle is connected with the transmission device; a bearing is arranged between the tail end of the spindle and a back baffle of the shell; the bearing is the wear resistant composite bearing which comprises a ball bowl and a single ball located in the ball bowl; and the ball bowl is fixed on a ball bowl seat. A water return hole is arranged in the end of the discharge port, far away from the front end of the shell, and connected with one end of a water return tube via a flume arranged at the lower part of the water return hole; the water return tube is arranged outside the shell; and the other end of the water return tube is connected with the sand-washing tank. The screw sand washer with the wear resistant composite bearing has the beneficial effects that stop time and maintenance cost caused by frequent maintenance are reduced due to the adoption of the wear resistant composite bearing; and with the adoption of an external water return design, the sand-washing efficiency is increased and the yield of washed sand can be increased by 25-30%.

Description

technical field [0001] The invention relates to a sand washing device for producing construction sand, in particular to a sand washing machine, in particular to a spiral sand washing machine using wear-resistant composite bearings. Background technique [0002] Sand washing machine is a kind of equipment widely used in sand and gravel fields, mines, building materials, transportation, chemical industry, water conservancy and hydropower and other industries. The sand washing machine is mainly used for washing materials, especially for removing impurities (such as dust) from sand products. According to the different appearance and principle, the sand washing machine is divided into spiral sand washing machine, drum sand washing machine, water wheel sand washing machine and vibrating sand washing machine, etc. At present, the XL type spiral sand washing machine is widely used in the market. [0003] The tail support of this spiral sand washing machine is basically designed wi...

AI Technical Summary

Problems solved by technology

However, this solution often causes the gap between the screw blade on the main shaft and the shell to be too large, resulting in a large amount of sand returning, reducing work efficiency, and further affecting production

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