WO2020244106A1 - Système et procédé permettant de réaliser un ajout continu de sable dans un jet d'eau abrasif pré-mélangé par une pompe à mortier à haute pression - Google Patents

Système et procédé permettant de réaliser un ajout continu de sable dans un jet d'eau abrasif pré-mélangé par une pompe à mortier à haute pression Download PDF

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Publication number
WO2020244106A1
WO2020244106A1 PCT/CN2019/110262 CN2019110262W WO2020244106A1 WO 2020244106 A1 WO2020244106 A1 WO 2020244106A1 CN 2019110262 W CN2019110262 W CN 2019110262W WO 2020244106 A1 WO2020244106 A1 WO 2020244106A1
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WO
WIPO (PCT)
Prior art keywords
pressure
mortar
pipeline
pump
clean water
Prior art date
Application number
PCT/CN2019/110262
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English (en)
Chinese (zh)
Inventor
袁瑞甫
姚远航
李小军
李化敏
李东印
童景琳
熊祖强
王文
Original Assignee
河南理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 河南理工大学 filed Critical 河南理工大学
Publication of WO2020244106A1 publication Critical patent/WO2020244106A1/fr
Priority to ZA2021/04119A priority Critical patent/ZA202104119B/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
    • B24C7/0015—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • B24C7/0023—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure

Definitions

  • the invention belongs to the technical field of water jet cutting, and specifically relates to a high-pressure mortar pump to realize a continuous sand adding system and method for mixed abrasive water jet.
  • the abrasive water jet is mixed with a certain amount of abrasive particles in the water jet, which can greatly improve the impact ability of the water jet.
  • abrasive water jet Currently widely used in metal cold cutting, porcelain, stone processing, mining and other industries.
  • the pre-mixed abrasive water jet has good mixing degree of water and sand, easy to use nozzles, and strong cutting ability, but there are problems such as limited capacity of high-pressure sand storage tanks, discontinuous sand addition, many repeated sand addition procedures, and long time.
  • the present invention provides a high-pressure mortar pump with convenient operation, safety and reliability, and high sand adding efficiency to realize a continuous sand adding system and method of a premixed abrasive water jet.
  • the high-pressure mortar pump realizes the pre-mixed abrasive water jet continuous sand adding system, which includes a clean water bucket, a mortar mixing bucket, a high-pressure clean water pipeline, a high-pressure mortar pipeline, a high-pressure jet pipeline and Tee pipe
  • the inlet of the high-pressure clean water pipeline extends below the water surface of the clean water bucket, the outlet of the high-pressure clean water pipeline is connected to the first interface of the tee pipe, and the high-pressure clean water pipeline is sequentially provided with a high-pressure clean water pump and a first pressure gauge along the water flow direction;
  • the inlet of the high-pressure mortar pipeline extends below the slurry surface of the mortar mixing tank, the outlet of the high-pressure mortar pipeline is connected to the second interface of the tee pipe, and the high-pressure mortar pipeline is sequentially provided with a high-pressure mortar pump and a second port along the mortar flow direction.
  • the inlet of the high-pressure jet pipeline is connected with the third interface of the tee, and the outlet of the high-pressure jet pipeline is connected with a high-pressure nozzle.
  • a safety valve is provided on the high-pressure jet pipeline.
  • a one-way valve is arranged between the first pressure gauge and the three-way pipe on the high-pressure clean water pipeline.
  • the high-pressure mortar pump realizes the sand adding method of the pre-mixed abrasive water jet continuous sand adding system, including the following steps:
  • the pressure in the high-pressure clean water pipeline, high-pressure mortar pipeline and high-pressure jet pipeline is greater than the set pressure of the safety valve, and the safety valve is opened to safely release the pressure.
  • step (2) the process of separately starting the high-pressure mortar pump to spray through the high-pressure nozzle is: the high-pressure mortar pump extracts the mortar in the mortar mixing tank through the high-pressure mortar pipeline, and the mortar of a certain concentration enters the high-pressure jet pipeline through the three-way pipe. Due to the setting of the one-way valve, the mortar can only be ejected from the high-pressure nozzle after passing through the high-pressure jet pipeline.
  • step (2) the process of simultaneously starting the high-pressure clean water pump and the high-pressure mortar pump to spray through the high-pressure nozzle is: the high-pressure clean water pump draws water from the clean water bucket through the high-pressure clean water pipeline, and the high-pressure mortar pump draws the mortar mixing bucket through the high-pressure mortar pipeline
  • the mortar of the first pressure gauge is slightly smaller than that of the second pressure gauge. A certain concentration of mortar enters the three-way pipe and mixes in clean water, passes through the high-pressure jet pipeline, and is sprayed outward by the high-pressure nozzle.
  • the present invention has the following technical effects:
  • the present invention uses a mortar mixing barrel to mix water and sand at a certain ratio and concentration under normal pressure, and then uses a high-pressure mortar pump to inject a high-concentration water-sand mixed flow (high-concentration mortar) into the In the high-pressure clean water pipeline after the clean water pump is input, the high-concentration mortar is mixed with high-pressure clean water to become an abrasive mortar of appropriate concentration, which is sprayed from the high-pressure nozzle through the high-pressure jet pipeline. This completes the continuous sanding of the pre-mixed abrasive water jet;
  • the high-pressure clean water pump can be replaced by a coal mine floating liquid pump.
  • the present invention uses a high-pressure mortar pump and a pipeline control system, and cleverly utilizes the characteristics of the high-pressure mortar pump that can carry small abrasive sands, and mixes the current water and sand under high pressure to convert the water and sand in the normal state. It is mixed into a high-concentration mortar under pressure, and then mixed with high-pressure water to form a high-pressure abrasive water jet with a suitable concentration, which realizes convenient and continuous sand addition, convenient and practical operation, low cost, and is easily converted into mature products and quickly put into the market.
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • the high-pressure mortar pump of the present invention realizes the continuous sand adding system of the pre-mixed abrasive water jet, including a clear water bucket 1, a mortar mixing bucket 2, a high-pressure clear water pipeline 3, a high-pressure mortar pipeline 4, and a high-pressure jet pipeline 5. And tee 6;
  • the inlet of the high-pressure clean water pipeline 3 extends below the water surface of the clean water bucket 1, the outlet of the high-pressure clean water pipeline 3 is connected to the first interface of the tee pipe 6, and the high-pressure clean water pipeline 3 is sequentially provided with high-pressure clean water pumps along the water flow direction. 7 and the first pressure gauge 8;
  • the inlet of the high-pressure mortar pipeline 4 extends below the slurry surface of the mortar mixing tank 2, the outlet of the high-pressure mortar pipeline 4 is connected to the second interface of the tee 6, and the high-pressure mortar pipeline 4 is arranged in sequence along the mortar flow direction
  • a high-pressure mortar pump 9 a second pressure gauge 10 and a regulating ball valve 11;
  • the inlet of the high-pressure jet pipeline 5 is connected with the third interface of the three-way pipe 6, and the outlet of the high-pressure jet pipeline 5 is connected with a high-pressure spray head 12.
  • a safety valve 13 is provided on the high-pressure jet pipeline 5.
  • the high-pressure clean water pipeline 3 is provided with a one-way valve 14 between the first pressure gauge 8 and the three-way pipe 6.
  • the high-pressure mortar pump 9 realizes the sand adding method of the pre-mixed abrasive water jet continuous sand adding system, including the following steps:
  • the safety valve 13 When the high-pressure nozzle 12 is spraying outward, if the inside of the high-pressure nozzle 12 is blocked, the pressure in the high-pressure clean water pipeline 3, the high-pressure mortar pipeline 4, and the high-pressure jet pipeline 5 is greater than the set pressure of the safety valve 13, and the safety valve 13 It is opened to relieve pressure safely.
  • step (2) the process of separately starting the high-pressure mortar pump 9 to spray through the high-pressure nozzle 12 is: the high-pressure mortar pump 9 extracts the mortar in the mortar mixing tank 2 through the high-pressure mortar pipeline 4, and the mortar with a certain concentration enters through the three-way pipe 6 In the high-pressure jet pipeline 5, due to the setting of the one-way valve 14, the mortar can only be sprayed outward by the high-pressure nozzle 12 after passing through the high-pressure jet pipeline 5.
  • step (2) the process of starting the high-pressure clean water pump 7 and the high-pressure mortar pump 9 through the high-pressure nozzle 12 is as follows: the high-pressure clean water pump 7 pumps the water in the clean water bucket 1 through the high-pressure clean water pipeline 3, and the high-pressure mortar pump 9 passes the high-pressure mortar
  • the pipeline 4 extracts the mortar in the mortar mixing tank 2 so that the pressure indication of the first pressure gauge 8 is slightly lower than the indication of the second pressure gauge 10.
  • the mortar of a certain concentration enters the tee pipe 6 and is mixed in the clean water.
  • After the high-pressure jet pipeline 5 is sprayed outwards by the high-pressure nozzle 12.
  • This embodiment does not limit the shape, material, structure, etc. of the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention belongs to the protection of the technical solution of the present invention. range.

Abstract

La présente invention concerne un système permettant de réaliser un ajout continu de sable dans un jet d'eau abrasif pré-mélangé par une pompe à mortier à haute pression, le système comprenant un canon à eau claire, un canon d'agitation de mortier, une conduite d'eau claire à haute pression, une conduite de mortier à haute pression, une conduite à jet à haute pression et une conduite en t. La conduite d'eau claire à haute pression est dotée d'une pompe à eau claire à haute pression et d'une première jauge de pression de manière séquentielle dans une direction d'écoulement d'eau ; la conduite de mortier à haute pression est dotée d'une pompe à mortier à haute pression, d'une seconde jauge de pression et d'une soupape à bille de réglage séquentiellement dans une direction d'écoulement de mortier ; et une sortie de la conduite de jet à haute pression est raccordée à une buse de pulvérisation à haute pression. La présente invention concerne en outre un procédé destiné à réaliser un ajout continu de sable dans un jet d'eau abrasif pré-mélangé par la pompe à mortier à haute pression. Selon la présente invention, la caractéristique de la pompe à mortier à haute pression pouvant transporter de petites particules de sable abrasif est utilisée de manière ingénieuse, une manière existante de mélanger de l'eau et du sable dans un état de haute pression est transformée en une manière de mélanger l'eau et le sable dans du mortier à haute concentration dans un état de pression normale, puis de mélanger du mortier à haute concentration avec de l'eau claire à haute pression pour former le jet d'eau abrasif à haute pression avec une concentration appropriée, ce qui présente les avantages d'être pratique, de permettre un ajout de sable continu et de présenter une praticité de fonctionnement.
PCT/CN2019/110262 2019-06-05 2019-10-10 Système et procédé permettant de réaliser un ajout continu de sable dans un jet d'eau abrasif pré-mélangé par une pompe à mortier à haute pression WO2020244106A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2021/04119A ZA202104119B (en) 2019-06-05 2021-06-15 System and method for realizing continuous addition of sand into pre-mixed abrasive water jet by high-pressure mortar pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910486799.2 2019-06-05
CN201910486799.2A CN110125806A (zh) 2019-06-05 2019-06-05 高压砂浆泵实现前混合磨料水射流连续加砂系统及方法

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WO (1) WO2020244106A1 (fr)
ZA (1) ZA202104119B (fr)

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CN110125806A (zh) * 2019-06-05 2019-08-16 河南理工大学 高压砂浆泵实现前混合磨料水射流连续加砂系统及方法
CN111271041A (zh) * 2020-01-20 2020-06-12 西安石油大学 一种常压式二氧化碳压裂地面混砂装置
CN113770921B (zh) * 2021-10-09 2022-07-15 河南理工大学 一种超前预混合磨料水射流设备和发生方法

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CN104552027A (zh) * 2013-10-15 2015-04-29 常州交通技师学院 前混合磨料射流连续供料系统
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CN110153904A (zh) * 2019-06-05 2019-08-23 河南理工大学 能够连续加砂的磨料水力冲孔系统及方法

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DE3722258A1 (de) * 1987-07-06 1989-01-19 Pro Aqua Geraete Gmbh Vorrichtung zum herstellen eines unter hochdruck stehenden granulat/fluid-gemisches
CN101811287A (zh) * 2009-02-24 2010-08-25 任保林 高压前混合式悬浮磨料水射流切割及清洗装置
CN103100984A (zh) * 2013-03-11 2013-05-15 重庆大学 一种磨料自动供给装置及使用方法
CN104552027A (zh) * 2013-10-15 2015-04-29 常州交通技师学院 前混合磨料射流连续供料系统
CN110125806A (zh) * 2019-06-05 2019-08-16 河南理工大学 高压砂浆泵实现前混合磨料水射流连续加砂系统及方法
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