Technology for finely separating materials and sand in laminar flow

Abstract

The invention provides a technology for finely separating materials and sand in laminar flow. Principles for the technology include that a height-adjustable gate is arranged between an outlet end of a cuboid-shaped sand wash tank and an inlet end of a cuboid-shaped washing pond with the width identical to the width of the cuboid-shaped sand wash tank, the sand can settle in the sand wash tank under the effect of the gravity by the aid of the difference between the density of the sand and the density of the materials, the difference between the viscosity of the sand and the viscosity of the materials and the density, which is larger than the density of the materials, of the sand when the sand-containing materials at an inlet end of the sand wash tank slowly horizontally flow to the washing pond in laminar states, upper-layer material liquid can overflow into the washing pond via the gate, and accordingly the materials and the sand can be finely separated from one another. The technology is implemented by the aid of a fine cleaning sand-free material backflow pump 1, the washing pond 2, the height-adjustable gate 3, the sand wash tank 4, a sand-containing material inlet pipeline 5, a sand collecting pool 6, a sand-containing material lifting pump 7, a fine cleaning sand-free material backflow pipeline 8, a sand shovel vehicle track support 11, a sand shovel vehicle 12 and the like.

Description

technical field [0001] The patent of the present invention relates to the field of environmental protection technology, and proposes a laminar flow material sand essence separation technology for separating poultry and livestock manure from livestock farms. Background technique [0002] Both chicken manure and cow manure contain a lot of sand. The sand in chicken manure is mainly due to the sand in the chicken feed itself. The sand in cow manure is mainly due to the sand in the bedding material. The sand is brought out when cleaning the cow bed manure. In the past, the manure of poultry and livestock from farms was usually fertilized directly to the crops without sand removal. Later, the filter sieve separation equipment with a filter screen or centrifugal separation equipment was used to separate the manure and sand, but the filter sieve separation equipment can only separate the particles with a large difference in particle size. For large dung and sand, the centrifugal se...

AI Technical Summary

Problems solved by technology

In the past, the manure of poultry and livestock from farms was usually fertilized directly to the crops without sand removal. Later, the filter sieve separation equipment with a filter screen or centrifugal separation equipment was used to separate the manure and sand, but the filter sieve separation equipment can only separate the particles with a large difference in particle size. For large dung and sand, the centrifugal separation equipment can only separate dung and sand with a large difference in specific gravity. Neither of these two processes can separate the wrapped dung and sand fines with similar particle size and specific gravity.

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