12 Apr 2017
Broken purpose and significance
2, meaning: in the chemical industry, power sector, crushing and grinding machinery and raw material crushing, grinding, increasing the surface area of the material, creating favourable conditions for shortening the reaction time of the item. Along with the rapid development of industry and resources rapidly decreased, reuse of waste in the production of various departments is very important, these wastes of processing required crushing machinery is broken.
Medical stone machine
1, extracorporeal shock wave lithotripsy
Extracorporeal shock wave lithotripsy (extracorporeal shock wave lithotripsy,ESWL) merit lies in its treatment of non-invasive, easily accepted by patients, and it has a high success rate, less damage to human tissue, has been widely used in clinic.
2, electric shock wave source
Breaker waves in liquid-the majority, because of its early development, technology maturity, good stone effect and is widely used.
Liquid electric type shock wave source is a half oval metal reflection body placed electrode, reflection body full water, dang high pressure electric in water in the discharge Shi, in electrode very pointed at produced high temperature high pressure, for liquid electric effect and formed shock wave, shock wave to around spread, met reflection body very smooth of within surface and reflection, electrode very pointed in ellipsoid of first focus at, so in first focus (F1) issued of shock wave by reflection Hou on will in second focus (F2) gathered, formed pressure powerful of shock wave Coke district, When the body stones in a second focus, will be crushed.
3, piezoelectric shock wave source
Piezoelectric shock wave source is a dome mounted on the inner wall of many piezoelectric crystals, when there is a high frequency and high voltage electricity through piezoelectric crystals, vibration of the piezoelectric Crystal will scale, so that the water produced sonic wave, shock wave in the sphere of spheres (f) focusing, when stone when it is in focus, will be powerful shock waves shattered.
4, electromagnetic shock wave source
Electromagnetic shock wave source can be divided into both flat-plate and the cylinder.
Flat type electromagnetic waves source is a hollow cylindrical body, cylindrical body end has group high frequency coil, dang high frequency high pressure pulse current through Shi, coil produced pulse vibration magnetic field, according to electric magnetic field induction law known, near coil front-end of flat metal film on will occurred vibration, to makes water media produced shock wave, parallel line spread of shock wave through double concave of sound lens Hou in lens of focus (f) at focused, powerful of shock wave can put in focus at of stone crushed.
Cylinder type electromagnetic waves waves is a cylinder shaped insulation body outside wall installation several group high frequency coil, coil outside is a cylinder shaped metal vibration film, whole device placed in a rotating parabola formed reflection body bottom, dang has high frequency high pressure current through coil Shi, coil around produced pulse vibration magnetic field, according to electromagnetic induction principle, cylinder shaped metal vibration film on will produced vibration, to makes water media produced shock wave, shock wave parallel to around spread, met reflection body very smooth of within surface and reflection, then in throwing real surface of focus f at focused When stone when it is in focus, will be powerful shock waves shattered.
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