CN101537600A - Mine abrasive water jet cutting method and device - Google Patents
Mine abrasive water jet cutting method and device Download PDFInfo
- Publication number
- CN101537600A CN101537600A CN200910083415A CN200910083415A CN101537600A CN 101537600 A CN101537600 A CN 101537600A CN 200910083415 A CN200910083415 A CN 200910083415A CN 200910083415 A CN200910083415 A CN 200910083415A CN 101537600 A CN101537600 A CN 101537600A
- Authority
- CN
- China
- Prior art keywords
- pressure
- abrasive
- cutting
- abrasive material
- mine
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a mine abrasive water jet cutting method and a device. The method comprises the steps of mixing the abrasive with partial high-pressure water in a forward mixing manner in a high-pressure abrasive tank to form uniform suspension, and then mixing the suspension with cutting high-pressure water in a mixing chamber, and jetting the mixture from the spout of a spray pistol in an accelerative manner to form abrasive particle flow-abrasive jet to cut the object to be cut at an extremely high speed. The abrasive particle of the forward mixing manner has long acceleration time, obtains huge energy, and has good cutting effect. The entire device has quick cutting speed without sparkle in the cutting process, does not cause gas explosion, has low cost, and is free from pollution and extremely suitably used for cutting in complex environment in mine.
Description
Technical field
The invention belongs to the colliery technical field, particularly a kind of mine abrasive water jet cutting method and device.
Background technology
In the industry of colliery, tunnel exploitation, coal cutting roadway supporting etc. all can be cut rock, anchor pole.For example, in the driving of underground chamber, need be under the non-destructive situation of chamber country rock, to the geologic body scene in a certain zone wherein boring sample or rock core carries out geology and mechanical test analysis, because the down-hole exists many inflammable, explosive dangerous gas, and the space is narrow and small in the chamber, the cutting complicated condition, can not use the machine cuts mode of easy generation sparks such as electrogas welding to cut, and for satisfying the downhole production needs, the workman has to transport of materials to ground is cut, influenced the continuity of underground work on the one hand, can expend a lot of times and great manpower on the other hand again, material resources, for the large-scale mine that requires modern production, its production cost improves greatly, so safety is badly in need of in the down-hole, the equipment of practical on-mechanical cutting.
At present, the water-jet technology development has been widely used in numerous areas such as mining, aviation, building, chemical industry, metallurgy, municipal works, weaving, Metal Cutting, broken rock and cleaning rapidly.Aspect cutting, the water jet cutting is that mode is cut in unique cold cut, has avoided the thermal cutting process to be easy to generate spark, easily causes the shortcoming of gas explosion, the hydrone that the high speed that mainly relies on its incision principle penetrates washes away surface to be cut, forms certain cutting effect.In actual applications, effect is obvious when cutting some materials that the surface is loose, soft or the slit is bigger, but it is then powerless for comparatively hard rock or iron and steel etc., particularly in the mine under the complicated environmental condition, how to utilize cold cut to cut mode, design a kind of new cutting method, improve cutting effect and just become the problem to be solved in the present invention.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the present invention aims to provide a kind of pre-mixed abrasive water jet method and device, makes that the water jet cutting speed is faster, cut coverage is wider, cutting effect is more obvious, is particularly suitable for using under the complicated environmental condition in mine.
The present invention is achieved through the following technical solutions:
Mine abrasive water jet cutting method adds cutting with in the water under high pressure with abrasive material, utilizes mixed abrasive material and water under high pressure mixed liquor to penetrate from spout, finishes cutting the cutting on surface.
Hybrid mode was mixed back formation unit for uniform suspension with the part water under high pressure before described abrasive material adopted in container, suspension is mixed with water under high pressure with cutting again, and suspension and cutting are penetrated from spout together with water under high pressure.
Described abrasive material addition is no more than 20% of container capacity.
Described abrasive material is a 60-80 purpose garnet.
The hydraulic pressure of described water under high pressure is 30-40MPa, and nozzle diameter is 0.8mm.
A kind of mine abrasive water jet cutter sweep, comprise high service device, high-pressure abrasive material jar, mixing chamber, spray gun and support, the high-pressure abrasive material jar is connected between high service device and the mixing chamber by pipeline, the high service device is respectively the high-pressure abrasive material jar and mixing chamber provides water under high pressure, spray gun is connected in the outlet of mixing chamber, and support is fixed on the spray gun below.
Described high service device comprises interconnective hydraulic pump, hydraulic motor and high-pressure plunger pump, and the high-pressure plunger delivery side of pump is communicated with high-pressure abrasive material jar and mixing chamber respectively.
Described high-pressure abrasive material jar is provided with charging aperture and air bleeding valve, is connected with inlet valve on the charging aperture.
Described high-pressure abrasive material jar is communicated with the high-pressure plunger delivery side of pump respectively by the water inlet of top and bottom.
Be respectively equipped with choke valve and inlet valve on the connecting line between described mixing chamber and high service device, the high-pressure abrasive material jar.
Mine abrasive water jet cutting method of the present invention and device, adopt cold cut to cut principle, by hybrid mode before the abrasive material, abrasive material and water under high pressure are evenly mixed in the high-pressure abrasive material jar, form suspension by the road to mixing chamber, spray from spray gun with mixing chamber inner high voltage water, form abrasive particle stream-abradant jet with flank speed.Compare with the pure water jet, abradant jet is changed into the high frequency bump and erosion effect of abrasive particle stream to material with the pure water jet to the static pressure continuous action of material, and its action effect greatly takes on a new look.Before hybrid mode, abrasive material and water mixes, fully, the abrasive particle acceleration time is long, obtain the energy height, and is more outstanding to the action effect of material, so its operating pressure can reduce greatly, the adaptability raising, saved the energy.Its device no-spark in cutting process can not brought out gas explosion, and also has the depositing dust effect.Utilize high-pressure grinding material water jet that rock sample, rock core are cut, can realize the extraction of rock sample under the complex conditions; Anchor pole, anchor cable and hard top coal etc. are cut, safe and effective, guarantee carrying out smoothly of down-hole caving work.The diversity of its cutting can satisfy the requirement of various cutting work under the complicated environmental condition, saved great amount of manpower and material resources, the medium that uses during cutting---water, cheap, the safety and sanitation of abrasive material can not bring environmental pollution, are highly suitable for cutting use in the complex environment under the mine.
Description of drawings
Fig. 1 is the graph of a relation of cutting-in and water pressure in the mine abrasive water jet cutting method of the present invention;
Fig. 2 is the structure principle chart of mine abrasive water jet cutter sweep of the present invention.
The specific embodiment
Mine abrasive water jet cutting method of the present invention at first, is chosen 80 purpose garnets as abrasive material, and abrasive material self is hard; Then, hybrid mode was evenly mixed abrasive material in container with the part water under high pressure in the past, form a kind of suspension, at last, suspension sent from container and mixes with water under high pressure with cutting, be accompanied by cutting and penetrate from spout with suspension with water under high pressure, formation has the abrasive particle stream-abradant jet of flank speed, utilize the high frequency bump and erosion effect of abrasive particle stream, finish cutting work surface to be cut to material.Wherein, water under high pressure hydraulic pressure is 40MPa, and nozzle diameter is 0.8mm, and the abrasive material addition generally is no more than 20% of container capacity.Certainly, abrasive material also can be the garnet between the 60-80 order, and the hydraulic pressure of water under high pressure also can be 30-40MPa.
As shown in Figure 1, choose different materials and carry out cutting experiment: test is chosen 80 order garnets as abrasive material, test nozzle diameter 0.8mm, use hydraulic pressure to be 38MPa, range 3mm, cutting speed is 50mm/min, cutting object is the anchor pole lockset that the down-hole is used, the depth of cut of anchor pole lockset is 28mm, and the granite depth of cut reaches 60mm.
As shown in Figure 1, cutting lockset under the different pressures condition respectively: cutting-in is respectively 18mm when pressure is 30MPa, and cutting-in is respectively 28mm when pressure is 38MPa.The result shows that along with hydraulic pressure raises, cutting-in almost is linear to be increased, and this is to have increased the flow velocity of water jet because hydraulic pressure raises, and abrasive material is quickened back kinetic energy by it to be increased, thereby has strengthened grinding and erosion effect to material.
Maximum pressure is 38MPa in the experiment, reduces greatly than the pressure of the cutting metal material of back mixing abrasive water jet.Test shows, same object is cut or eliminates rust, and the required operating pressure of pre-mixed abrasive jet only is 1/7～1/10 of a back compound abrasive jet operating pressure.
Be further described below in conjunction with 2 pairs of mine abrasive water jet cutter sweeps of the present invention of accompanying drawing:
Mine abrasive water jet cutter sweep of the present invention comprises high service device, high-pressure abrasive material jar 4, mixing chamber 3, spray gun 8 and support 11.Wherein, the high service device comprises hydraulic pump 10, hydraulic motor 9 and high-pressure plunger pump 1, interconnect between hydraulic pump 10, hydraulic motor 9 and the high-pressure plunger pump 1, the output of high-pressure plunger pump 1 is communicated with high-pressure abrasive material jar 4 and mixing chamber 3 respectively, be provided with choke valve 2 between high-pressure plunger pump 1 and the mixing chamber 3, choke valve 2 can limit the flow that flows into mixing chamber 3 mesohigh water.High-pressure abrasive material jar 4 is communicated with high-pressure plunger pump 1 output respectively by top water inlet and bottom water inlet.High-pressure abrasive material jar 4 is provided with charging aperture 7 and air bleeding valve 6, is connected with inlet valve on the charging aperture, and abrasive material enters into high-pressure abrasive material jar 4 by charging aperture 7, and air bleeding valve 6 can be discharged the gas in the high-pressure abrasive material jar 4, prevents jar interior phenomenon of feeling suffocated that produces.The outlet of high-pressure abrasive material jar 4 is communicated with mixing chamber 3 by pipeline, connecting pipeline is provided with the inlet valve 5 of control flow, high-pressure abrasive material jar 4 provides water and the mixed suspension of abrasive material for mixing chamber 3, spray gun 8 is connected in mixing chamber 3 outlets, support 11 is fixed on spray gun 8 belows, support 11 is fixed on thing to be cut the place ahead with spray gun 8, and spray gun 8 quickens the back with liquid in the mixing chamber 3 and penetrates on thing to be cut.
In the course of work, primer fluid press pump 10, hydraulic motor 9 and high-pressure plunger pump 1, hydraulic pump 10 is sent in the hydraulic motor 9 after emulsion is pressurizeed, drive 1 work of hydraulic motor 9 rotating band dynamic high-pressure plunger displacement pumps and produce water under high pressure, water under high pressure is admitted to respectively high-pressure abrasive material jar 4 and the mixing chamber 3 from high-pressure plunger pump 1 output, the flow that wherein enters in the mixing chamber 3 is bigger, and can carry out flow-control by choke valve 2, after few portion flows into water under high pressure in the high-pressure abrasive material jar 4 and enters from the top of high-pressure abrasive material jar 4 and bottom, can fully mix in jar with the abrasive material that flows into from charging aperture 7, suspension is stand-by in jar very uniformly to form a kind of mixing.When connecting inlet valve 5, suspension in the high-pressure abrasive material jar 4 enters in the mixing chamber 3, after water under high pressure in the mixing chamber 3 mixes once more, and when opening, spray gun 8 from spray gun 8, directly penetrates, finish under the high flow condition particle and treat the bump and the erosion on cut substrate surface, the final cutting effect that forms realizes that cold cut cuts process.
In underground coal mine exploitation, a lot of occasions are arranged, need carry out cutting work, some metal materials for example, be transported to the down-hole after, need carry out cutting and cut, to adapt to different purposes; Some rock material need cut, and realizes sampling, and some rock stratum need be cut back realization caving and in time be collapsed; Also some coal seam needs slot to prevent coal rock dynamic disasters such as the outstanding and bump of coal and gas; Can't drill in some harder coal seam, need utilize water-jet technology to assist and creep into or the like.Therefore technical method of the present invention and equipment have broad application prospects.
Claims (10)
1, mine abrasive water jet cutting method is characterized in that, abrasive material is added cutting with in the water under high pressure, utilizes mixed abrasive material and water under high pressure mixed liquor to penetrate from spout, finishes cutting the cutting on surface.
2, mine abrasive water jet cutting method according to claim 1, it is characterized in that, hybrid mode was mixed back formation unit for uniform suspension with the part water under high pressure before described abrasive material adopted in container, again suspension is mixed with water under high pressure with cutting, and suspension and cutting are penetrated from spout together with water under high pressure.
3, mine abrasive water jet cutting method according to claim 2 is characterized in that, described abrasive material addition is no more than 20% of container capacity.
According to claim 1,2 or 3 described mine abrasive water jet cutting methods, it is characterized in that 4, described abrasive material is a 60-80 purpose garnet.
According to claim 1,2 or 3 described mine abrasive water jet cutting methods, it is characterized in that 5, the hydraulic pressure of described water under high pressure is 30-40MPa, nozzle diameter is 0.8mm.
6, a kind of mine abrasive water jet cutter sweep, it is characterized in that, comprise high service device, high-pressure abrasive material jar, mixing chamber, spray gun and support, described high-pressure abrasive material jar is connected between high service device and the mixing chamber by pipeline, and the high service device is respectively the high-pressure abrasive material jar and mixing chamber provides water under high pressure; Described spray gun is connected in the outlet of mixing chamber, and support is fixed on the spray gun below.
7, mine abrasive water jet cutter sweep according to claim 6, it is characterized in that, described high service device comprises interconnective hydraulic pump, hydraulic motor and high-pressure plunger pump, and the high-pressure plunger delivery side of pump is communicated with high-pressure abrasive material jar and mixing chamber respectively.
8, mine abrasive water jet cutter sweep according to claim 6 is characterized in that, described high-pressure abrasive material jar is provided with charging aperture and air bleeding valve, is connected with inlet valve on the charging aperture.
According to claim 6 or 8 described mine abrasive water jet cutter sweeps, it is characterized in that 9, described high-pressure abrasive material jar is communicated with the high-pressure plunger delivery side of pump respectively by the water inlet of top and bottom.
10, mine abrasive water jet cutter sweep according to claim 6 is characterized in that, is respectively equipped with choke valve and inlet valve on the connecting line between described mixing chamber and high service device, the high-pressure abrasive material jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910083415A CN101537600A (en) | 2009-04-30 | 2009-04-30 | Mine abrasive water jet cutting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910083415A CN101537600A (en) | 2009-04-30 | 2009-04-30 | Mine abrasive water jet cutting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101537600A true CN101537600A (en) | 2009-09-23 |
Family
ID=41121101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910083415A Pending CN101537600A (en) | 2009-04-30 | 2009-04-30 | Mine abrasive water jet cutting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101537600A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947756A (en) * | 2010-09-10 | 2011-01-19 | 山西晋城无烟煤矿业集团有限责任公司 | Underground absorption water jet cutting system of coal mine |
| CN101972990A (en) * | 2010-08-27 | 2011-02-16 | 江苏诚德钢管股份有限公司 | Method for removing steel tube surface oxide skin |
| CN102166733A (en) * | 2011-01-06 | 2011-08-31 | 徐州中矿永宏科技有限公司 | Portable abrasive water jet cutting machine used in coal mine |
| CN103639905A (en) * | 2013-11-25 | 2014-03-19 | 安徽傲宇数控科技有限公司 | Mobile oil tank (pipe) ultrahigh pressure water jet cutting device |
| CN103921216A (en) * | 2014-04-08 | 2014-07-16 | 中国海洋工程公司 | Three-phase cavitation abrasive water jet cutting device |
| CN104271316A (en) * | 2012-03-11 | 2015-01-07 | 菲内帕特瑞典公司 | An abrasive jet system |
| CN104290041A (en) * | 2014-08-18 | 2015-01-21 | 武汉大学 | New high pressure abrasive water jet device and method using saturated solution for crystallization |
| CN104625970A (en) * | 2014-12-20 | 2015-05-20 | 天津艾浮瑞特科技有限公司 | Mining mobile type power-supply-free water cutter |
| CN105215854A (en) * | 2015-10-19 | 2016-01-06 | 杨晓峰 | A kind of abrasive material mixed method and orcible entry extinguishing device |
| CN106075779A (en) * | 2016-06-22 | 2016-11-09 | 河南理工大学 | A kind of heavy pressure fine spray linkage cutting extinguishing device containing abrasive material |
| CN109141155A (en) * | 2017-11-03 | 2019-01-04 | 纪新刚 | Water jet explosive disposal method |
| CN110030002A (en) * | 2019-05-06 | 2019-07-19 | 上海科煤机电设备制造有限公司 | A kind of laneway repair machine with Water Cutting function |
| CN114753196A (en) * | 2022-04-12 | 2022-07-15 | 中铁第四勘察设计院集团有限公司 | High and cold area water jet polishing system and method based on temperature control |
-
2009
- 2009-04-30 CN CN200910083415A patent/CN101537600A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972990A (en) * | 2010-08-27 | 2011-02-16 | 江苏诚德钢管股份有限公司 | Method for removing steel tube surface oxide skin |
| CN101947756A (en) * | 2010-09-10 | 2011-01-19 | 山西晋城无烟煤矿业集团有限责任公司 | Underground absorption water jet cutting system of coal mine |
| CN101947756B (en) * | 2010-09-10 | 2012-06-27 | 山西晋城无烟煤矿业集团有限责任公司 | Underground absorption water jet cutting system of coal mine |
| CN102166733A (en) * | 2011-01-06 | 2011-08-31 | 徐州中矿永宏科技有限公司 | Portable abrasive water jet cutting machine used in coal mine |
| CN102166733B (en) * | 2011-01-06 | 2013-02-06 | 徐州中矿永宏科技有限公司 | Portable abrasive water jet cutting machine used in coal mine |
| CN104271316A (en) * | 2012-03-11 | 2015-01-07 | 菲内帕特瑞典公司 | An abrasive jet system |
| CN103639905A (en) * | 2013-11-25 | 2014-03-19 | 安徽傲宇数控科技有限公司 | Mobile oil tank (pipe) ultrahigh pressure water jet cutting device |
| CN103921216A (en) * | 2014-04-08 | 2014-07-16 | 中国海洋工程公司 | Three-phase cavitation abrasive water jet cutting device |
| CN104290041A (en) * | 2014-08-18 | 2015-01-21 | 武汉大学 | New high pressure abrasive water jet device and method using saturated solution for crystallization |
| CN104625970A (en) * | 2014-12-20 | 2015-05-20 | 天津艾浮瑞特科技有限公司 | Mining mobile type power-supply-free water cutter |
| CN105215854A (en) * | 2015-10-19 | 2016-01-06 | 杨晓峰 | A kind of abrasive material mixed method and orcible entry extinguishing device |
| CN106075779A (en) * | 2016-06-22 | 2016-11-09 | 河南理工大学 | A kind of heavy pressure fine spray linkage cutting extinguishing device containing abrasive material |
| CN109141155A (en) * | 2017-11-03 | 2019-01-04 | 纪新刚 | Water jet explosive disposal method |
| CN109141155B (en) * | 2017-11-03 | 2021-05-07 | 纪新刚 | Liquid jet explosive treatment method |
| CN110030002A (en) * | 2019-05-06 | 2019-07-19 | 上海科煤机电设备制造有限公司 | A kind of laneway repair machine with Water Cutting function |
| CN114753196A (en) * | 2022-04-12 | 2022-07-15 | 中铁第四勘察设计院集团有限公司 | High and cold area water jet polishing system and method based on temperature control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101537600A (en) | Mine abrasive water jet cutting method and device | |
| CN201405268Y (en) | Mine pre-mixed abrasive water-jet cutting device | |
| CN102966309B (en) | High-pressure grinding material jet flow drill carriage device | |
| CA3014355C (en) | Rock drilling, swelling and chiselling integrated machine based on high-pressure foam medium | |
| US4534427A (en) | Abrasive containing fluid jet drilling apparatus and process | |
| CN201090239Y (en) | High pressure abradant shooting-flow drilling-skiving integration slit anti-projecting equipment | |
| CN110617044A (en) | Ultrahigh-pressure water jet slotting system and using method thereof | |
| CN212317853U (en) | Passive extrusion type pulse coal dust jet flow coal breaking pressure relief permeability increasing device | |
| CN110685683A (en) | Top-releasing device and method for front-mixing type abrasive water jet flow directional cutting top plate | |
| CN111794682A (en) | Passive extrusion type pulse coal dust jet flow coal breaking pressure relief and permeability increasing device and using method thereof | |
| CN105178933A (en) | Environmental protection type under-well formation fracturing device | |
| CN114000826A (en) | Coal-breaking permeability-increasing device and method by using advanced premixed pulsed abrasive water jet | |
| CN105328574A (en) | High-pressure rotating grinding material jet flow pore drilling and broadening device | |
| CN105201483A (en) | Environment-friendly downhole stratum fracturing method | |
| CN101975023B (en) | Method and device for drilling deep and long gas drainage hole in soft coal seam along layers | |
| CN108756883A (en) | A kind of coal mine tight roof slip casting fracturing process and system | |
| CN110153904B (en) | Abrasive hydraulic punching system and method capable of continuously adding sand | |
| CN205171497U (en) | Novel concrete whitewashing equipment | |
| CN207610873U (en) | A kind of shale sampler | |
| CN104564078A (en) | Device for mining stones by water cutting for grooving | |
| CN106703698A (en) | Underground coal mine auto-drilling apparatus and method | |
| CN105350518B (en) | A kind of concrete spraying equipment | |
| CN112267911B (en) | Gas-liquid-solid three-phase jet permeability increasing device and permeability increasing method for soluble gas | |
| CN210829247U (en) | Top-laying device for front-mixing type abrasive water jet flow directional cutting top plate | |
| CN210217705U (en) | Shale fracturing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090923 |