Ore high-voltage pulse discharge pretreatment system and using method thereof

A high-voltage pulse discharge and high-voltage electric pulse technology, which is applied in the field of mineral processing, can solve the problems of large dust, low degree of fragmentation and dissociation, and excessive pulverization, so as to improve the degree of dissociation, improve the grinding efficiency, and avoid the waste of energy. Effect
CN112169965AActive Publication Date: 2021-01-05NORTHEASTERN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHEASTERN UNIV
Publication Date
2021-01-05

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Abstract

The invention discloses an ore high-voltage pulse discharge pretreatment system and a using method thereof. The ore high-voltage pulse discharge pretreatment system comprises a feeding bin, a spiral feeder, a high-voltage electric pulse crushing cavity, a pulse high-voltage electric generator, an output power supply, an insulating liquid storage pool and an oscilloscope. The using method comprisesthe steps that (1) ore is conveyed to the high-voltage electric pulse crushing cavity through the feeding bin and the spiral feeder, and insulating liquid is introduced into the high-voltage electricpulse crushing cavity; (2) the voltage of the output power supply is controlled, the ore is in contact with a positive electrode and a negative electrode, electric current is conveyed to the pulse high-voltage generator, converting into an ultrahigh-voltage direct electric current is carried out, high-voltage electric pulse pretreatment is performed on the ore, and real-time monitoring is performed through the oscilloscope; and (3) the ore is subjected to high-voltage electric pulse pretreatment and then is continuously discharged along with the insulating liquid. The using method is simple in process, stable in system operation and easy in product property control; and the high-voltage electric pulse pretreatment enables internal cracks and gaps of the ore to be sharply increased, the mechanical property of the ore is weakened, and the ore grinding efficiency is remarkably improved.
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Description

technical field

[0001] The invention belongs to the technical field of mineral processing, and in particular relates to an ore high-voltage pulse discharge pretreatment system and an application method thereof. Background technique

[0002] Grinding is the link with the largest energy consumption in the beneficiation process, and the energy consumption of ore grinding accounts for 40-50% of the total energy consumption of the beneficiation plant; the loss cost of the liner of the mill and the grinding medium accounts for 70-80% of the total loss cost of the beneficiation plant. %, so the focus of energy saving and consumption reduction in mineral processing plants should be on grinding operations.

[0003] There are usually two means to improve the grinding efficiency, one is to rationally design and optimize the grinding process, select efficient large-scale grinding equipment, use advanced liners and media, improve the automation level of the grinding machine, etc.; In mi...

Claims

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