Abrasive material water jet flow spray head

An abrasive water jet and nozzle technology, which is applied to abrasives, abrasive feeding devices, spray guns, etc., can solve the problems that the jet cannot cover the full section, the cost is high, and the crushing effect is affected, so as to avoid wear and stagnation and meet the crushing requirements demand, good crushing effect

Active Publication Date: 2017-09-01
CHINA RAILWAY CONSTR HEAVY IND
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Problems solved by technology

However, for large-area cleaning and crushing occasions, since abrasives are added to the abrasive water jet, the method of enlarging the action area of ​​the rotary joint with pure water jet will cause the abrasive to wear and stick inside the rotary joint. Therefore, the existing abrasive Water jet nozzles are usually set in a fixed and non-rotating manner, and a large-area spraying requirement is achieved by setting multiple

Method used

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  • Abrasive material water jet flow spray head
  • Abrasive material water jet flow spray head
  • Abrasive material water jet flow spray head

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereby.

[0027] Such as figure 1 and figure 2 As shown, the abrasive water jet nozzle of this embodiment includes a water inlet assembly 1 and a feed assembly 2, wherein the water inlet assembly 1 is used to deliver high-pressure water, and the water inlet assembly 1 includes a rotating water pipe 11 and at least two water nozzles 12 , a plurality of water nozzles 12 are arranged along the circumferential direction of the rotating water pipe 11, and the centerlines of each water nozzle 12 intersect; the feeding assembly 2 is used to transport abrasives, and the addition of the abrasives of the present invention strengthens the erosion and crushing capabilities of the jet, which can Effectively cut the hard obstacles on the broken section. At the same time, the combinat...

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Abstract

The invention provides an abrasive material water jet flow spray head. The abrasive material water jet flow spray head comprises a water inlet assembly and a material inlet assembly, wherein the water inlet assembly conveys high pressure water, and the material inlet assembly conveys abrasive materials. The water inlet assembly comprises a rotary water pipe and two or more water spray nozzles. The multiple water spray nozzles are arranged in the circumferential direction of the rotary water pipe, and the central lines of the water spray nozzles intersect. The material inlet assembly comprises abrasive material inlets arranged below the water spray nozzles. The central lines of the abrasive material inlets intersect with the intersection point of the water spray nozzles. The abrasive material water jet flow spray head has the beneficial effect that the requirement for crushing hard barriers and a large-area soil layer is met.

Description

technical field [0001] The invention relates to the field of jet nozzles, in particular to an abrasive water jet nozzle. Background technique [0002] During the tunneling process, the pure water jet can easily achieve different erosion depths by changing the water jet pressure and the moving speed of the nozzle, and the use of water jets to erode the soil layer can avoid dust and tool wear caused by mechanical blade scrapers , but when the pure water jet is dealing with the soil layer containing hard obstacles, the required pressure is too high, and it is difficult to break and remove when there are hard obstacles in the section. [0003] In order to solve the above problems, the existing method is to use abrasive water jets, that is, to add abrasive particles into the water jets to greatly improve the erosion, crushing and cutting capabilities of hard soil layers. However, for large-area cleaning and crushing occasions, since abrasives are added to the abrasive water jet,...

Claims

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Application Information

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IPC IPC(8): B24C5/04B24C7/00E21D9/00
CPCE21D9/00B24C5/04B24C7/0007Y02P70/10
Inventor 刘飞香程永亮唐崇茂祝爽
Owner CHINA RAILWAY CONSTR HEAVY IND
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