| 摘要 |
<p>A nozzle for delivering a high or ultra high pressure liquid jet, the nozzle including a nozzle body (3, 21, 30, 50, 70) having a delivery passage (5, 23, 31, 54, 73) of total length (HN) passing therethrough to a nozzle outlet opening (7, 25, 32, 77) at an end face of the nozzle body. The nozzle outlet opening is a slot shaped having a width (L), lateral thickness (T) and length (H) to deliver a relatively planar shaped high or ultra high pressure liquid jet therefrom. The upstream passage (31) of the nozzle body has a wedge shaped portion (34) that leads into the slot and nozzle outlet opening (32). The passage of the nozzle is designed such that (HN/T) is greater than or equal to two. The nozzle is used for cleaning purposes and for disintegrating material such as rubber, plastic and other polymers. In particular the nozzle is used for the reclamation of rubber from used vehicle tyres into a particulate form where the particles are less than 100 microns in size.</p> |
