Building sand and stone automatic drying and separating method

Abstract

The invention provides a building sand and stone automatic drying and separating method. The method includes the steps of firstly, conveying a sand and stone mixture to the input end of an air dryingmechanism by a conveying device, making the sand and stone mixture vertically fall down, and air-drying the sand and stone mixture when the mixture falls from the input end to the output end; then, discharging the sand and stone mixture from the output end of the air drying mechanism to fall into a sieve tray, heating a filter screen, a built-in boss and a tray bottom by a heater, and drying the sand and stone mixture by the sieve tray; then, driving the sieve tray to rotate by a driving mechanism, screening out sand by the filter screen, and discharging the sand until the sand is all discharged; and finally, driving the tray bottom to float upwards by the driving mechanism so as to open the sieve tray, and discharging stone out of the sieve tray from openings formed in an internal circumferential surface of the built-in boss, and discharging the stone under the guidance of an inclined plate and a discharge hopper. The building sand and stone automatic drying and separating method hasthe beneficial effects that it is avoided that sand and stone are caked due to dampness and are difficult to separate, and the sand and stone which are caked due to dampness can be sufficiently separated.

Description

technical field [0001] The invention relates to the technical field of sand and stone separation, in particular to an automatic drying and separation method for construction sand and stone. Background technique [0002] After searching by the applicant, a Chinese utility model patent "a dust-free sand and gravel separator" was found. Its patent number is CN205613680U. On the left side of the outer casing, a drum is arranged inside the outer casing, barbed wire is arranged on the surface of the roller, a sand outlet is arranged on the surface of the outer casing, and the control panel is fixedly installed on the right side of the sand outlet. On the side, the separation of sand and stones is achieved through the rotation of the drum. The disadvantages are: 1. Most of the sand and gravel are outdoors, and the sand and gravel are easy to get wet and stick to each other, making it difficult to fully filter and separate the sand and gravel; 2. A large amount of sand will stick t...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. Most of the sand and gravel are outdoors, and the sand and gravel are easy to get wet and stick to each other, making it difficult to fully filter and separate the sand and gravel; 2. A large amount of sand will stick to the gravel, resulting in waste of sand resources; 3. Wet sand is easy to block the mesh of the wire mesh, making the wire mesh lose the function of screening sand; 4. It is inconvenient to discharge the stones, which requires manual operation, which reduces the separation efficiency of sand and stones.

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