CN109483413A - A kind of the water sand mixed method and water cutter device of water knife - Google Patents
A kind of the water sand mixed method and water cutter device of water knife Download PDFInfo
- Publication number
- CN109483413A CN109483413A CN201811456681.7A CN201811456681A CN109483413A CN 109483413 A CN109483413 A CN 109483413A CN 201811456681 A CN201811456681 A CN 201811456681A CN 109483413 A CN109483413 A CN 109483413A
- Authority
- CN
- China
- Prior art keywords
- water
- sand
- jet blade
- water jet
- cutter device
- 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
Classifications
-
- 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
-
- 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
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
Abstract
The invention discloses a kind of water sand mixed method of water knife and water cutter devices, its method is that the sand that will be soaked is transported in water jet blade, cooperates the high pressure water flow being in addition injected into water jet blade, forms the water sand mixture of high pressure, and projected from water jet blade, form water knife；The water cutter device includes including water jet blade, workbench, water tank, mixing pit, sand feedway and high-pressure hydraulic pump, the top of the mixing pit is equipped with for sandpipe and water supplying pipe, the mixing pit is connect with sand feedway, the water jet blade is equipped with sand inlet, the sand inlet is connect with sand feedway, and the high-pressure hydraulic pump is connect with water jet blade.The water sand mixed method and water cutter device of a kind of water knife provided by the invention, clever structure can be to avoid the abrasion to damp sand to pipeline, and high pressure water flow and damp sand are uniformly mixed, good cutting effect.
Description
Technical field
The present invention relates to water knife technical field more particularly to the water sand mixed methods and water cutter device of a kind of water knife.
Background technique
Water knife, i.e., using water as knife, real name High Pressure Water Jet Cutting Technology, this technology originates from the U.S. earliest.For navigating
Empty aerospace military industry.The physicochemical properties of material will not be changed and by favor by being cut with its cold cut.Constantly change by technology
Into, be mixed into high pressure water the abrasive materials such as pomegranate sand, diamond dust auxiliary cutting, greatly improve the cutting speed and cutting of water knife
Thickness.Present water knife has been widely used for numerous industries such as ceramics, stone material, glass, metal, composite material.
Currently, the water sand mixed method of water knife is generally divided into two kinds of " preceding mixed " and " mixing afterwards "." preceding mixed " refer to by water and
Sand is first mixed and is pressurizeed in blending tank before being injected into water jet blade, and passes through pipeline for the water sand mixture of high pressure
It is transported in water jet blade, is projected from water jet blade and form water knife；" rear mixed " refers to by dry sand and after being overpressurized
Water is injected into water jet blade respectively, is adsorbed sand in feed water flow by the suction function that high pressure water generates in water jet blade, from
It is projected in water jet blade and forms water knife.
However, the water sand mixed method of " preceding mixed " can produce pipeline during being injected into water jet blade by pipeline
Raw huge abrasion, seriously reduces the service life of entire water cutter device；The water sand mixed method of " rear mixed " then has water sand mixing
Unevenly, cutting effect is poor；Damp sand can not recycle, and water consumption is big, the high disadvantage of cutting cost.
Therefore, it is badly in need of the new water sand mixed method of one kind at present to solve the problem above-mentioned.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the above-mentioned deficiency of the prior art, a kind of clever structure is provided, it can be with
The abrasion to damp sand to pipeline is avoided, and high pressure water flow and damp sand are uniformly mixed, the water sand mixing side of the water knife of good cutting effect
Method.
Another technical problem to be solved by the present invention is that providing a kind of clever structure, using the water of above-mentioned water sand mixed method
Knife system.
The technical solution that the present invention solves previous technical problem is: a kind of water sand mixed method of water knife, the sand that will be soaked
It is transported in water jet blade, cooperates the high pressure water flow that is in addition injected into water jet blade, form the water sand mixture of high pressure, and from
Water jet blade projects, and forms water knife.
As a further improvement of the present invention, the water sand mixture for completing cutting excludes after filtering, precipitation process
Impurity, damp sand is recycled and is re-delivered in water jet blade mixes with the high pressure water flow.
As a further improvement of the present invention, the damp sand of recycling is transported to water jet blade after mixing with the sand newly soaked again
In mixed with the high pressure water flow.
The technical solution that the present invention solves second technical problem is: a kind of water knife using above-mentioned water sand mixed method
Device further includes mixing pit, sand feedway and height including water jet blade, the workbench and water tank of setting thereunder
Water pump, the mixing pit are equipped with for sandpipe and water supplying pipe, and the mixing pit is connect with the input end of sand feedway, described
Water jet blade is equipped with a sand inlet, and the sand inlet is connect with the outlet end of sand feedway, and the high-pressure hydraulic pump passes through one
The connection of the top of high-pressure water pipe and water jet blade, is equipped in water jet blade and sand inlet, high-pressure water pipe and water jet blade output end
The water sand mixing chamber of three's connection.
As a further improvement of the present invention, the side of the water tank is equipped with sand setting case, and the sand setting case includes along water
The first sand setting area, the second sand setting area and the storage area that stream direction is successively horizontally disposed with and is separated with partition.
As a further improvement of the present invention, first sand setting area is connected by the first sand pump with water tank；It is described
The connection of the sand recovery tube above mixing pit is arranged in second outlet end sand setting Qu Yuyi, and the sand recovery tube is equipped with second and takes out sand
Pump；The storage area is arranged in the water recovery tube above water tank with an outlet end and connect, and the water recovery tube is equipped with suction pump.
As a further improvement of the present invention, it is all equipped with for filtering quilt in first sand setting area and the second sand setting area
The strainer of the material residue of high pressure waterjet.
As a further improvement of the present invention, it is described for sandpipe, water supplying pipe and sand recovery tube close to outlet end
Valve is all equipped on position.
As a further improvement of the present invention, it is opposite with sand inlet to be additionally provided with one for the water sand mixing chamber of the water jet blade
Sand export, the sand export is arranged in the sand circulation pipe above mixing pit with an outlet end and connect.
Beneficial effect
Compared with prior art, the advantages of the water sand mixed method and water cutter device of a kind of water knife of the invention are as follows:
1, in the present invention, the sand soaked is transported in water jet blade, cooperates the height being in addition injected into water jet blade
Water flow is pressed, the water sand mixture of high pressure is formed, and project from water jet blade, forms water knife, the sand soaked uses normal pressure
Water jet blade is injected, and the high pressure water by being subsequently implanted into drives damp sand to form water knife, can be avoided damp sand in injection water knife knife
Abrasion is generated to pipeline during head, improves the service life of device；Also, sufficiently using the mixing of the water sand of this method,
Good cutting effect；
2, the water sand mixture of cutting is completed through filtering, despumation after precipitation process, by damp sand recycling and again defeated
Be sent in water jet blade and mixed with high pressure water flow, cutting complete after damp sand can recycling and reusing, reduce cutting cost；
3, the top of mixing pit is equipped with for sandpipe and water supplying pipe, and mixing pit is connect with the input end of sand feedway, water knife
The side wall of cutter head lower part is equipped with a sand inlet, and sand inlet is connect with the outlet end of sand feedway, and high-pressure hydraulic pump is high by one
The connection of the top of pressure pipe and water jet blade, is equipped in water jet blade and sand inlet, high-pressure water pipe and water jet blade output end three
The water sand mixing chamber of person's connection, mixing pit, which mixes dry sand with water, to soak, and is injected into water sand mixing chamber by sand feedway
In, the high pressure water being subsequently implanted into drives damp sand to form water knife, can be avoided damp sand during injecting water jet blade to pipeline
Abrasion is generated, improves the service life of device, also, in this case, the damp sand in water jet blade is to supply to fill in sand
Be injected into wherein under the action of setting, rather than the suction-operated of high pressure water so that the present apparatus have in operation it is enough wet
Sand and high pressure water mix, good cutting effect, avoid the waste of water resource；
4, the first sand setting area is connected by the first sand pump with water tank, and the second outlet end sand setting Qu Yuyi is arranged in mixing pit
The sand recovery tube of top connects, and sand recovery tube is equipped with the second sand pump, and storage area and an outlet end are arranged in above water tank
The connection of water recovery tube, water recovery tube are equipped with suction pump, are equipped with and are used in the first sand setting area and the second sand setting area
Filter by the strainer of the material residue of high pressure waterjet, can will cutting complete after damp sand can recycling and reusing, reduce and cut
It is cut into this；
5, a sand export opposite with sand inlet is additionally provided on the side wall of water jet blade lower part, sand export is set with an outlet end
Set the sand circulation pipe connection above mixing pit, before high pressure water is injected into water jet blade, water jet blade and mixing pit it
Between formd a complete sand circulation, avoid damp sand bigger to pipeline generation during being injected into water jet blade
Pressure and abrasion.
Through the following description and in conjunction with the attached drawings, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlarged view in the portion A in Fig. 1.
Wherein: 1, cutter head；11, sand inlet；12, sand export；13, sand circulation pipe；2, sand feedway；3, high-pressure hydraulic pump；
31, high-pressure water pipe；4, mixing pit；41, for sandpipe；42, sand recovery tube；43, water supplying pipe；44, valve；5, workbench；6, water tank；
7, sand setting case；71, the first sand setting area；711, the first sand pump；72, the second sand setting area；721, the second sand pump；73, storage area；
731, suction pump；732, water recovery tube；74, strainer；75, partition.
Specific embodiment
The embodiment of the present invention is described referring now to the drawings.
Embodiment
A kind of water sand mixed method of water knife disclosed by the invention, the sand soaked is transported in water jet blade 1, and cooperation is another
The high pressure water flow being injected into water jet blade 1 outside forms the water sand mixture of high pressure, and projects from water jet blade 1, forms water
Knife.Wherein, the sand soaked injects water jet blade 1 using normal pressure, and the high pressure water by being subsequently implanted into drives damp sand shape
At water knife, it can be avoided damp sand and abrasion generated to pipeline during injecting water jet blade 1, improve the use of whole device
Service life；Also, sufficiently using the mixing of the water sand of this method, good cutting effect.
In the present invention, the water sand mixture despumation after filtering, precipitation process for completing cutting, damp sand is returned
It receives, the damp sand of recycling is transported in water jet blade 1 again after mixing with the sand newly soaked and mixes with high pressure water flow, after cutting is completed
Damp sand can recycling and reusing, reduce cutting cost.
Specific structure using a kind of water cutter device of water sand mixed method of the invention is as shown in Figs. 1-2: including water knife
Cutter head 1, the workbench 5 and water tank 6 of setting thereunder.
In addition to this, the device of the invention further includes mixing pit 4, sand feedway 2 and high-pressure hydraulic pump 3, on mixing pit 4
Equipped with for sandpipe 41 and water supplying pipe 43, mixing pit 4 is connect with the input end of sand feedway 2, and water jet blade 1 is equipped with one into sand
Mouth 11, sand inlet 11 is connect with the outlet end of sand feedway 2, and high-pressure hydraulic pump 3 passes through a high-pressure water pipe 31 and water jet blade 1
Top connection, water jet blade 1 is interior to be equipped with the water sand being connected to sand inlet 11, high-pressure water pipe 31 and 1 output end three of water jet blade
Mixing chamber.Sand feedway 2 can be screw pump.
Mixing pit 4, which mixes dry sand with water, to soak, and is injected into water sand mixing chamber by sand feedway 2, subsequent note
The high pressure water entered drives damp sand to form water knife, can be avoided damp sand and generates abrasion to pipeline during injecting water jet blade 1,
Improve the service life of device；Also, in this case, the damp sand in water jet blade 1 is the effect in sand feedway 2
Under be injected into wherein, rather than the suction-operated of high pressure water, so that the present apparatus has enough damp sands and high pressure in operation
Water mixes, good cutting effect, avoids the waste of water resource.
Meanwhile the side of water tank 6 is equipped with sand setting case 7, sand setting case 7 includes successively being horizontally disposed with along water (flow) direction and using partition
75 the first sand setting area 71, the second sand setting area 72 and the storage areas 73 separated.
In the present invention, the first sand setting area 71 is connected by the first sand pump 711 with water tank 6；Second sand setting area 72 goes out with one
The sand recovery tube 42 that 4 top of mixing pit is arranged in mouth end connects, and sand recovery tube 42 is equipped with the second sand pump 721；Storage area 73
The water recovery tube 732 that 6 top of water tank is arranged in an outlet end is connect, and water recovery tube 732 is equipped with suction pump 731.Also, the
It is all equipped with for filtering by the strainer 74 of the material residue of high pressure waterjet, can will cut in one sand setting area 71 and the second sand setting area 72
Cut complete after damp sand can recycling and reusing, reduce cutting cost.
In addition to this, in the present embodiment it is to be noted that
It is all equipped on the position close to outlet end for sandpipe 41, water supplying pipe 43 and sand recovery tube 42 and controls its switch
Valve 44.
The water sand mixing chamber of water jet blade 1 is additionally provided with a sand export 12 opposite with sand inlet 11, and sand export 12 goes out with one
The sand circulation pipe 13 that 4 top of mixing pit is arranged in mouth end connects, and the sand circulation pipe 13 is equipped with third sand pump.In high pressure water
A complete sand circulation has been formd before being injected into water jet blade 1, between water jet blade 1 and mixing pit 4, has been avoided
Damp sand generates bigger pressure and abrasion during being injected into water jet blade 1 to pipeline.
Combining most preferred embodiment above, invention has been described, but the invention is not limited to implementations disclosed above
Example, and various modifications, equivalent combinations according to the essence of the present invention should be covered.
Claims (10)
1. a kind of water sand mixed method of water knife, which is characterized in that the sand soaked is transported in water jet blade (1), cooperation is another
The high pressure water flow being injected into water jet blade (1) outside forms the water sand mixture of high pressure, and projects from water jet blade (1), is formed
Water knife.
2. a kind of water sand mixed method of water knife according to claim 1, which is characterized in that complete the water sand mixing of cutting
Object despumation after filtering, precipitation process, damp sand is recycled and is re-delivered in water jet blade (1) and the high pressure water
Stream mixing.
3. a kind of water sand mixed method of water knife according to claim 2, which is characterized in that the damp sand of recycling with newly soak
Sand mixing after be transported in water jet blade (1) and mixed with the high pressure water flow again.
4. a kind of water cutter device, including water jet blade (1), the workbench (5) and water tank (6) of setting thereunder, feature
It is, further includes mixing pit (4), sand feedway (2) and high-pressure hydraulic pump (3), the mixing pit (4) is equipped with for sandpipe
(41) it connect with water supplying pipe (43), the mixing pit (4) with the input end of sand feedway (2), is set on the water jet blade (1)
Have a sand inlet (11), the sand inlet (11) connect with the outlet end of sand feedway (2), and the high-pressure hydraulic pump (3) passes through
One high-pressure water pipe (31) is connect with the top of water jet blade (1), is equipped with and sand inlet (11), high-pressure water pipe in water jet blade (1)
(31) the water sand mixing chamber being connected to water jet blade (1) output end three.
5. a kind of water cutter device according to claim 4, which is characterized in that the side of the water tank (6) is equipped with sand setting case
(7), the sand setting case (7) include successively be horizontally disposed with along water (flow) direction and separated with partition (75) the first sand setting area (71),
Second sand setting area (72) and storage area (73).
6. a kind of water cutter device according to claim 5, which is characterized in that taken out by first in first sand setting area (71)
Sand pump (711) is connected with water tank (6)；The sand that second sand setting area (72) and an outlet end are arranged above mixing pit (4) returns
Closed tube (42) connection, the sand recovery tube (42) are equipped with the second sand pump (721)；The storage area (73) sets with an outlet end
Water recovery tube (732) connection above water tank (6) is set, the water recovery tube (732) is equipped with suction pump (731).
7. a kind of water cutter device according to claim 6, which is characterized in that first sand setting area (71) and the second sand setting
It is all equipped in area (72) for filtering by the strainer (74) of the material residue of high pressure waterjet.
8. a kind of water cutter device according to claim 6, which is characterized in that it is described for sandpipe (41), water supplying pipe (43) with
And sand recovery tube (42) is all equipped with valve (44) on the position close to outlet end.
9. a kind of water cutter device according to claim 4 to 8 any one, which is characterized in that the water jet blade (1)
Water sand mixing chamber is additionally provided with one and sand inlet (11) opposite sand export (12), and the sand export (12) and an outlet end are arranged
Sand circulation pipe (13) connection above mixing pit (4).
10. a kind of water cutter device according to claim 9, which is characterized in that the sand circulation pipe (13) is equipped with third
Sand pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456681.7A CN109483413A (en) | 2018-11-30 | 2018-11-30 | A kind of the water sand mixed method and water cutter device of water knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456681.7A CN109483413A (en) | 2018-11-30 | 2018-11-30 | A kind of the water sand mixed method and water cutter device of water knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109483413A true CN109483413A (en) | 2019-03-19 |
Family
ID=65698773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811456681.7A Pending CN109483413A (en) | 2018-11-30 | 2018-11-30 | A kind of the water sand mixed method and water cutter device of water knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109483413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207717A (en) * | 2020-09-28 | 2021-01-12 | 南京澳跃检测科技有限公司 | Cold-state processing method for physical sample |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100865958B1 (en) * | 2007-06-20 | 2008-10-30 | 윤원식 | Sludge retrieval apparatus and a method for waterjet device |
| CN101439498A (en) * | 2007-11-23 | 2009-05-27 | 英立联企业股份有限公司 | Abrasive blaster |
| CN104044080A (en) * | 2013-03-13 | 2014-09-17 | 东芝机械株式会社 | Spray gun for wet blasting |
| CN105664575A (en) * | 2016-04-19 | 2016-06-15 | 广州华臻机械设备有限公司 | Water sand treatment system and method for jet pump |
| CN205995143U (en) * | 2016-04-19 | 2017-03-08 | 广州华臻机械设备有限公司 | A kind of sand removal water cleaning systems |
| CN107511768A (en) * | 2017-08-24 | 2017-12-26 | 中国矿业大学 | A kind of malleation is fed abrasive jet system |
| CN207043994U (en) * | 2017-08-21 | 2018-02-27 | 郑州福禄寿科技有限公司 | Portable Water Cutting equipment for embedded body |
| US20180161958A1 (en) * | 2016-12-12 | 2018-06-14 | Omax Corporation | Recirculation of wet abrasive material in abrasive waterjet systems and related technology |
| CN209125620U (en) * | 2018-11-30 | 2019-07-19 | 广州华臻机械设备有限公司 | A kind of water cutter device |
-
2018
- 2018-11-30 CN CN201811456681.7A patent/CN109483413A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100865958B1 (en) * | 2007-06-20 | 2008-10-30 | 윤원식 | Sludge retrieval apparatus and a method for waterjet device |
| CN101439498A (en) * | 2007-11-23 | 2009-05-27 | 英立联企业股份有限公司 | Abrasive blaster |
| CN104044080A (en) * | 2013-03-13 | 2014-09-17 | 东芝机械株式会社 | Spray gun for wet blasting |
| CN105664575A (en) * | 2016-04-19 | 2016-06-15 | 广州华臻机械设备有限公司 | Water sand treatment system and method for jet pump |
| CN205995143U (en) * | 2016-04-19 | 2017-03-08 | 广州华臻机械设备有限公司 | A kind of sand removal water cleaning systems |
| US20180161958A1 (en) * | 2016-12-12 | 2018-06-14 | Omax Corporation | Recirculation of wet abrasive material in abrasive waterjet systems and related technology |
| CN207043994U (en) * | 2017-08-21 | 2018-02-27 | 郑州福禄寿科技有限公司 | Portable Water Cutting equipment for embedded body |
| CN107511768A (en) * | 2017-08-24 | 2017-12-26 | 中国矿业大学 | A kind of malleation is fed abrasive jet system |
| CN209125620U (en) * | 2018-11-30 | 2019-07-19 | 广州华臻机械设备有限公司 | A kind of water cutter device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207717A (en) * | 2020-09-28 | 2021-01-12 | 南京澳跃检测科技有限公司 | Cold-state processing method for physical sample |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103100984A (en) | Abrasive automatic feeding device and using method | |
| CN102059751B (en) | System and method for recycling and supplying mortar to multi-wire cutting machines | |
| CN209125620U (en) | A kind of water cutter device | |
| CN103846809B (en) | Water jet flow cutting machine | |
| CN109483413A (en) | A kind of the water sand mixed method and water cutter device of water knife | |
| CN105397646B (en) | A kind of continuous sand supplying system and continuous sand supplying method | |
| CN107511768A (en) | A kind of malleation is fed abrasive jet system | |
| WO2020244106A1 (en) | System and method for realizing continuous addition of sand into pre-mixed abrasive water jet by high-pressure mortar pump | |
| CN203887705U (en) | Waste liquid recycling device of grinding miller | |
| CN204772113U (en) | Portable high -pressure water jet cutting device | |
| CN110153904B (en) | Abrasive hydraulic punching system and method capable of continuously adding sand | |
| CN202006519U (en) | Mortar circulating and supplying system of multi-wire saw | |
| CN205148090U (en) | Hybrid system of abrasive material | |
| CN206578711U (en) | Front mixing pulse abrasive material gas fluidic device | |
| CN205148088U (en) | Conveying system of abrasive material | |
| CN101396804B (en) | Deburring method and device of steps inner-holes | |
| CN209125627U (en) | A kind of water jet blade | |
| CN104190567B (en) | A kind of activity excitant atomising device for metal tailings grinding system | |
| CN211736409U (en) | Novel spray nozzle structure of concrete spraying device | |
| CN210099766U (en) | System for realizing continuous sand adding of pre-mixed abrasive water jet by high-pressure mortar pump | |
| CN210650255U (en) | Device for reducing abrasion of nozzle spray pipe by adopting water film | |
| CN204221978U (en) | Aeroconcrete proportioning and water system | |
| CN202911002U (en) | Simple and convenient reinforcement potting machine for rough stone blocks | |
| CN106346556A (en) | Water jet cutter | |
| CN205148089U (en) | Energy storage slurry tank full charge's protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |