A method for automatic drying and separation of construction sand and stone

Abstract

The invention provides a method for automatic drying and separation of construction sand and gravel, the steps of which are as follows: firstly, the conveying device transports the sand and gravel mixture to the input end of the air-drying mechanism, the sand and gravel mixture falls vertically downward, and the sand and gravel mixture is The air-drying process is carried out during the process of falling from the input end to the output end; then, the sand and gravel mixture will be discharged from the output end of the air-drying mechanism to fall into the sieve tray, and the heater will clean the screen, the built-in boss and the bottom of the pan. After heat treatment, the sieve plate dries the sand and gravel mixture; then, the drive mechanism drives the sieve plate to rotate, and the sieve mesh screens out the sand and discharges it outward until the sand is completely discharged; finally, the drive mechanism drives the bottom of the plate to float upwards and open The sieve tray, the stones will be discharged from the opening formed by the inner circular surface of the built-in boss, and then discharged outwards under the guidance of the inclined plate and the discharge hopper. Fully separate the wet and agglomerated sand and gravel.

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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