High-voltage repetitive pulse generating apparatus and method for electric pulse breakage

Abstract

The invention discloses a high-voltage repetitive pulse generating apparatus and method for electric pulse breakage. The apparatus is composed of a direct-current power supply module, a first-stage steepening module, a boost module, and a second-stage steepening module. The direct-current power supply module is used for outputting a direct-current voltage. The first-stage steepening module connected with the direct-current power supply module converts a direct-current voltage into a pulse voltage with the period at a microsecond level. The boost module connected with the first-stage steepening module amplifies the pulse voltage with the period at a microsecond level. And the second-stage steepening module connected with the boost module carries out steepening processing on the amplified pulse voltage with the period at a microsecond level, so that the pulse voltage having a large output amplitude and a rising edge at a nanosecond level. The first-stage steepening module and the second-stage steepening module carry out steepening processing on the pulse voltage and the boost module amplifies the pulse voltage, so that the apparatus having a simple structure is easy to operate for long time. Using the high-voltage repetitive pulse generating apparatus, the high-voltage pulse having the rising edge within 400 ns, the voltage amplitude of 200kV, the frequency of 5Hz, and the single-shot energy of 900J can be provided; and thus breaking work of various rocks and polycrystalline silicon bars can be completed by cooperation with a discharging electrode.

Description

technical field [0001] The invention belongs to the field of electric pulse rock crushing, and more specifically relates to a high-voltage repetition frequency pulse generating device for electric pulse crushing. Background technique [0002] Rock crushing has always been a production method for humans to transform nature and obtain resources. The use of high-voltage pulse discharge to crush rocks is a new type of crushing method developed in recent years. The principle is to use the expansion stress of the plasma channel generated by the pulse discharge to crush the rock. Compared with the traditional mechanical crushing and explosive blasting crushing, the high-voltage pulse crushing has the advantages of no flying stones, no pollution, easy control of output energy and high crushing efficiency. advantage. [0003] Research at home and abroad shows that the main requirements for the high-voltage pulse waveform used for rock breaking are a rising edge of 500ns and a suffi...

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Problems solved by technology

[0004] In view of the above defects, the present invention provides a high-voltage repetitive pulse generating device for electric pulse crushing, which aims to solve the problem of the rising edge of the high-voltage repetitive pulse that cannot be output due to its own electrical characteristics in the existing high-voltage repetitive pulse generating device. Technical issues within 500ns and long-term stable operation

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