Sand manufacturing system

Abstract

The invention discloses a sand manufacturing system. The sand manufacturing system comprises a crushing unit, a piling unit, a charging unit which cooperates with the piling unit, a drying unit and adust removing and discharging unit, wherein the crushing unit comprises a housing, a first crushing cavity arranged in the housing, a second crushing cavity, a recovering chamber, first crushing devices arranged in the first crushing cavity, second crushing devices arranged in the second crushing cavity and a recovering device arranged in the recovering chamber; an outlet of the first crushing cavity communicates with an outlet of the recovering chamber and an inlet of the second crushing cavity; and a filtering device is arranged at an outlet of the recovering chamber. Through adoption of thesand manufacturing system disclosed by the invention, two operations of coarse crushing and fine crushing of construction wastes can be realized on the same equipment, so that the working efficiencyis high; cutters are not liable to damage, so that the service life of the equipment is long; and besides, the filtering device is arranged, so that the situation that the cutters in the second crushing cavity are used for crushing materials which does not conform to the processing specification is further avoided, and the damage ratio is reduced.

Description

technical field [0001] The invention belongs to the technical field of mortar manufacture, and in particular relates to a sand making system. Background technique [0002] Sand and gravel are important raw materials for making mortar, but mortar in the natural environment is a non-renewable resource. If sand and gravel are used all the time, this resource will be extremely short and the ecological environment will be destroyed. In order to protect the environment, people began to crush construction waste to replace sand and gravel. This approach not only solved the problem of construction waste disposal, but also greatly reduced the waste of non-renewable resources, and achieved energy conservation and environmental protection to a great extent. . [0003] However, when the existing crushing equipment crushes construction waste, it usually can only perform coarse crushing operations. The crushed raw materials usually need to be further sorted and finely crushed to meet the ...

AI Technical Summary

Problems solved by technology

[0003] However, when the existing crushing equipment crushes construction waste, it usually can only perform coarse crushing operations. The crushed raw materials usually need to be further sorted and finely crushed to meet the requirements of sand making. The work efficiency is low, and it needs to be used Multiple devices are operated, and the processing cost is high

If the fine crushing equipment is directly used for fine crushing of construction waste, it is very easy to cause damage to the crushing tool, the service life of the equipment is short, and the maintenance rate is high

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