Sand washing machine with fine sand recovering and rewashing function and obtaining method thereof

Abstract

The invention discloses a sand washing machine with the fine sand recovering and rewashing function and an obtaining method of the sand washing machine with the fine sand recovering and rewashing function. According to the sand washing machine with the fine sand recovering and rewashing function, a water collection tank which is communicated with a water outlet of the sand washing machine is arranged at the position of the water outlet of the sand washing machine, a water distribution tank which is separated from the water collection tank is arranged above the water collection tank, a communication port which is communicated with the water collection tank is formed in the bottom of the water distribution tank, a flow divider valve is arranged in the communication port, a clear water discharging port is formed in the upper side wall of the water distribution tank, a hydrocyclone is erected on the upper portion of the outer side wall of the water distribution tank, a sewage pump is arranged on the bottom of the water collection tank and is connected with a water inlet of the hydrocyclone through a guide pipe, a clear water outlet of the hydrocyclone is communicated with the top of the water distribution tank through a guide pipe, and a concentrated solution outlet of the hydrocyclone is communicated with a feed inlet of the sand washing machine through a guide pipe. According to the sand washing machine with the fine sand recovering and rewashing function and the obtaining method of the sand washing machine with the fine sand recovering and rewashing function, a find sand recovering system is additionally arranged on the basis of a traditional sand washing machine, in this way, the grading of finished sand can be effectively improved, the yield is increased, the content of particulate matter in discharged sewage can be reduced greatly, and environment pollution pressure is relieved.

Description

[0001] technical field [0002] The invention relates to the technical field of sand washing machines, in particular to a sand washing machine with the function of recovering and washing fine sand and its realization method. [0003] Background technique [0004] The sand washing machine is a machine that rinses out the mud powder (particles smaller than 75 microns) contained in the sand by gravity flotation, fishes out the sand and effectively dehydrates it to a certain location. [0005] At present, the common sand washing machines are bucket wheel type, chain plate bucket type, spiral type and so on. like figure 1 and figure 2 It is a bucket wheel sand washing machine described in the patent 201320597916.0, which mainly consists of a grit chamber 1, a power system 2, a bucket wheel 3, and a drain 4. The basic principle is that the screened sand is washed into the front of the grit chamber 1 of the sand washing machine with a large amount of water, and the rear of the...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the technical problem that the fine sand discharged from the discharge port of the sand washing machine cannot be recovered and washed again, and to provide a simple structure and process, convenient manufacturing and matching, which can effectively improve the gradation of the finished sand, increase the output, and greatly improve the quality of the sand. Sand washing machine with fine sand recovery and rewashing function and its implementation method which reduces the particulate matter content in discharged sewage and reduces the pressure on environmental pollution

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