Abrasive dust collecting and cooling liquid cleaning device

Abstract

The invention discloses an abrasive dust collecting and cooling liquid cleaning device and belongs to the field of inorganic material processing. When a multi-wire cutting machine cuts a crystal ingot, generated abrasive dust enters cooling liquid, part of the abrasive dust interacts with a diamond wire, so that the size consistency of wafers is poor, the cooling effect is poor, and abrasive dust collecting equipment of a filter press and a centrifugal machine is complex and high in cost. According to the invention, one of the two side-by-side dewatering bags is used for collecting abrasive dust and filtering the cooling liquid, and then one of the two side-by-side nanofiltration bags is used for carrying out nanofiltration treatment on the filtered cooling liquid and collecting the abrasive dust with the particle size of more than 50nm, so that the cooling liquid is always kept in a clean state and an optimal cooling effect is exerted; the dehydration bag and the nanofiltration bag are arranged to realize non-stop collection of abrasive dust; therefore, the multi-wire cutting machine is always in continuous production, the abrasive dust is collected on line, the cooling liquid is always kept clean, and the cooling effect is good. The device is low in cost, easy to operate, small in occupied area and free of energy consumption.

Description

technical field [0001] The invention belongs to the technical field of inorganic material processing, and in particular relates to a grinding dust collection and cooling liquid cleaning device. Background technique [0002] The double carbon target is the only way for the sustainable development of mankind. One of its symbols is the popularization and widespread use of renewable energy. Solar power is an important part of renewable energy, and solar silicon wafers are the core components of solar power. Human beings have entered the era of information society, integrated circuits are the basis for supporting the development of information society, and silicon wafers are the carrier of integrated circuits. Silicon-based power electronic devices are the basic core devices of energy conversion and require a large number of silicon wafers. It is estimated that the future global demand for silicon wafers will be 250 million pieces (equivalent to 8 inches). The third-generation...

AI Technical Summary

Problems solved by technology

For dozens of cutting machines, the loss of downtime and cleaning is even greater

For the coolant supply system that provides centralized liquid supply for dozens of multi-wire cutting machines, a filter press is introduced to collect debris and clean the coolant. However, the filter press works intermittently, occupying a large area and costing a lot

There is also a centrifugal filter system introduced to achieve the functions of dust collection and coolant cleaning, but requires high-speed equipment to consume energy

Natural sedimentation filtration has long downtime and short effective working time; pressure filtration occupies a large area, has many consumables, and has disadvantages such as complicated operation; centrifugal filtration consumes energy and has complex mechanisms

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