Casting waste sand treatment device

Abstract

The invention discloses a casting waste sand treatment device. The casting waste sand treatment device comprises a main support; an auger frame is obliquely arranged at the upper end of the main support; a spiral conveyor is placed in the auger frame; a gear motor is mounted at one end part of the spiral conveyor; a first discharging port is formed in the end part, far away from the gear motor, ofthe spiral conveyor; a drying cylinder is arranged below the first discharging port; one half of the auger frame is located in a sand washing pool; a top cover is fixedly arranged above the sand washing pool; a feeding hopper is arranged obliquely above the top cover; the lower end of the feeding hopper communicates with a guide pipe and penetrates through the top cover downwards; and a faucet ismounted in the feeding hopper. According to the casting waste sand treatment device, by designing the sand washing pool, on the one hand, waste sand is washed, and on the other hand, sorting is completed; sand grains meeting the specification sink and are conveyed away by the conveyor, sand grains not meeting the specification float and are washed away along with water flow; and therefore, the casting waste sand treatment device is suitable for different working conditions, and better using prospects are brought.

Description

technical field [0001] The invention relates to the field of foundry sand treatment, in particular to a foundry waste sand treatment device. Background technique [0002] The basic raw materials of casting sand molds are casting sand and molding sand binder. The most commonly used casting sand is siliceous sand. When the high temperature performance of siliceous sand cannot meet the requirements of use, special sand such as zircon sand, chromite sand, and corundum sand are used; With the sharp increase in the price of various types of sand, in order to save costs and expenses, the recycling and reuse of foundry sand began to appear. However, in the process of casting, due to the filling of liquid metal under gravity and various reasons, The sand mold will be damaged, and the qualified sand will become broken particles, and the damage rate can reach up to 15%. This part cannot be used directly. In order to further improve the utilization rate of waste sand, we propose a found...

AI Technical Summary

Problems solved by technology

[0002] The basic raw materials of casting sand molds are casting sand and molding sand binder. The most commonly used casting sand is siliceous sand. When the high temperature performance of siliceous sand cannot meet the requirements of use, special sand such as zircon sand, chromite sand, and corundum sand are used; With the sharp increase in the price of various types of sand, in order to save costs and expenses, the recycling and reuse of foundry sand began to appear. However, in the process of casting, due to the filling of liquid metal under gravity and various reasons, The sand mold will cause damage, and the qualified sand will become broken particles, and the damage rate can reach up to 15%. This part cannot be directly used. In order to further improve the utilization rate of waste sand, we propose a foundry waste sand treatment device.

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