Pulse cavitation water jet superfine crusher

Abstract

The present invention relates to a pulse cavitation water jet superfine crusher to utilize high pressure water jet to crush material. The superfine crusher has structure comprising a feeder, a vibration chamber, a speeding pipe, a crushing chamber, a support seat, a base seat and other parts. The vibration chamber has a vibration cavity constituted by a positioning ring, a front water jetting member and a back stop member. Inside the vibration cavity, the energy and original pulse excitation of high pressure water jet equipment are utilized fully to form stable pulse for powerful cavitation crushing of material particles. Regulating target distance and other parameters can expand the range of crushed material and raise the crushing efficiency.

Description

technical field [0001] The invention relates to a water jet superfine pulverizing device which uses high-pressure water jet technology to pulverize materials. Background technique [0002] There are many forms of superfine crushing of material particles using water jet technology. One is a crushing device using the principle of pre-mixed abrasive jets, such as the "ultrafine homogenizer" (CN2132562) disclosed by China University of Mining and Technology. The principle is: put the material particles to be crushed in a high-pressure tank, introduce high-pressure water from the top, and mix them fully with the material particles, then output them through the control valve at the lower part, and inject them together with the high-pressure water through the abrasive nozzle, mixing at high speed The fluid hits the target body, and the material particles are crushed under the impact. Its advantage is that the particles are evenly mixed with high-pressure water, so that it has a be...

AI Technical Summary

Problems solved by technology

Its advantage is that the particles are evenly mixed with high-pressure water, so that it has a better acceleration effect and the impact effect is obvious; the disadvantage is that it needs to stop frequently to add materials to the high-pressure tank or replace different high-pressure tanks, so it cannot work continuously. In addition, its equipment The structure is complex and difficult to operate and maintain; one is a crushing device using post-mixing abrasive jet technology. Injected into the mixing chamber, the material particles are sucked into the jet by vacuum ejection and accelerated, and then hit the target body after being accelerated by the acceleration tube, causing the particles to be crushed. This technology has the advantages of simple structure and continuous work. Beijing University of Science and Technology The disclosed "water jet superfine pulverizer" (CN2255876) and "self-vibrating water jet superfine pulverizer" (CN2345284) belong to this device, but these disclosed technical devices still have the following various types due to structural reasons Disadvantages, including the inability to form stable pulse oscillations, the particles cannot reach the center of the jet, the acceleration effect is poor, the target distance cannot be adjusted, and the crushing effect is poor, etc.

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