CN110281166B - Spray head of environment-friendly sand blasting device - Google Patents
Spray head of environment-friendly sand blasting device Download PDFInfo
- Publication number
- CN110281166B CN110281166B CN201910489475.4A CN201910489475A CN110281166B CN 110281166 B CN110281166 B CN 110281166B CN 201910489475 A CN201910489475 A CN 201910489475A CN 110281166 B CN110281166 B CN 110281166B
- Authority
- CN
- China
- Prior art keywords
- water
- sand
- head
- internal thread
- inner groove
- 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.)
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- 238000005488 sandblasting Methods 0.000 title claims abstract description 12
- 239000007921 spray Substances 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000004576 sand Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- 230000007613 environmental effect Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005270 abrasive blasting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- 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
- B24C9/003—Removing abrasive powder out of the blasting machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
The utility model provides an environment-friendly sand blasting unit's shower nozzle, includes head and afterbody with bolted connection, and the afterbody passes through left flange joint high-pressure gas sand mixture, and the high-pressure water is connected through water joint I to the bottom of afterbody, and this high-pressure water mixes with gas sand mixture in sand passageway II sections locally for the sand surface that flows at a high speed has certain moisture. The bottom of the head is connected with high-pressure water through the internal thread II of the water joint, the high-pressure water is sprayed out through the internal groove II, the ring and the water holes to form a water protection cover with a certain shape, and when the working environment is changed or the surface protection layer of the ship body is changed, different water protection covers can be formed after capping. During operation, the operating personnel align the shower nozzle with the hull, and the hull is impacted from sand passageway to the gas sand mixture of high pressure for the raise dust greatly reduced when the hull rust cleaning because of the dual protection of water plays certain guard action to operating personnel and surrounding environment.
Description
Technical Field
A spray head of an environment-friendly sand blasting device.
Background
At present, in the industry of building ships at home and abroad, three methods are basically available for rust removal of the surface of a ship body, and the first is: the sand blasting method is characterized in that steel shot mixed with steel balls directly touches the surface of a ship body, the rust removing effect is good, but dust is very large, and the influence on the environment and staff is very large. Second,: the high-pressure water flushing has good effect of cleaning the dirt structure on the surface of the ship body and the rust removing effect is general. Third,: the rust removing method is a mixture of high-pressure gas, steel sand and water, has a rust removing effect and can protect the environment. However, the spray heads of such high-pressure gas, steel grit and water blasting apparatuses are not sufficiently studied at present, and the effects are generally found in practical use.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a spray head of an environment-friendly sand blasting device.
In order to achieve the above object, the present invention provides a spray head of an environment-friendly sand blasting apparatus, comprising:
The head part and the tail part are connected through bolts, the middle of the tail part is communicated to form a through hole, an inner groove I is formed in the right side of the tail part, the left through hole of the inner groove I is a sand channel I, and the right through hole of the inner groove I is a sand channel II;
the lower part of the right side of the tail part is provided with a water joint internal thread I, and the water joint internal thread I is communicated with the internal groove I;
The center of the head is provided with a head sand channel, the size of the head sand channel is consistent with that of the sand channel II, and the head sand channel and the sand channel II are concentrically connected;
An inner groove II is formed in the left side of the head, the inner groove II extends to the right side to form a ring, and the right side of the ring penetrates through the right side surface of the head through a water hole;
The left bottom of the head is provided with a water joint internal thread II which is communicated with the internal groove II;
and an external thread is processed on the right side of the head part and is connected with the cover through an internal thread.
As a further improvement of the invention, the left side of the tail part is provided with a flange, the left side of the flange is provided with a sealing groove I, and the flange is provided with a bolt connecting hole.
As a further improvement of the invention, the inner groove I and the sand channel II are provided with a transition part, the diameter of the sand channel II is larger than that of the sand channel I, and the shape of the transition part is an arc.
As a further improvement of the invention, a sealing groove III is formed on the inner side of the circumferential surface of the inner groove II, and a sealing groove II is formed on the outer side of the circumferential surface of the inner groove II.
As a further development of the invention, the inner groove ii is connected to the ring by a chamfer.
As a further improvement of the invention, the end face of the cover is provided with a water outlet.
As a further development of the invention, the water connection internal thread i is connected to the water connection i, and the water connection internal thread ii is connected to the water connection ii.
The beneficial effects of the invention are as follows:
1. Through the shape improvement to sand passageway for water and high-pressure gas sand mixture are better in the mixed effect of sand passageway II, reduce the raise dust.
2. The water used in the mixing and the water for preventing dust are separately supplied, so that the water pressure is easy to adjust, the mixing effect is good, and the protected water mist is easier to absorb.
Drawings
FIG. 1 is a cross-sectional view of a spray head of an environment-friendly abrasive blasting apparatus of the present invention;
FIG. 2 is a cross-sectional view of the tail of component 1;
FIG. 3 is a cross-sectional view of the head of part 2;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a cross-sectional view of the cover of part 4;
fig. 6 is a schematic diagram of the operation.
In the figure: 1. tail part; 11. a bolt connection hole; 12. sealing groove I; 13. sand channel I; 14. internal thread I of the water joint; 15. an inner groove I; 16. a transition section; 17. sand channel ii; 2.a head; 21. sealing groove II; 22. sealing groove III; 23. an inner groove II; 231. chamfering; 24. a ring; 25. internal thread II of the water joint; 26. a head sand passage; 27. a water hole; 28. an external thread; 3. a water joint I; 4. a cover; 41. an internal thread; 42. a water outlet hole; 5. and a water joint II.
Detailed Description
As shown in fig. 1, a nozzle of an environment-friendly sand blasting device according to an embodiment of the present invention includes: the head part 2 and the tail part 1 are connected by bolts, and the middle part is connected by bolts only to facilitate the processing of the parts. The left side of afterbody 1 is the flange, the left surface processing seal groove I12 of flange, processing bolt connecting hole 11 on the flange is connected with high-pressure gas sand mixture pipeline through the flange. The middle of the tail part 1 is communicated to form a through hole, an inner groove I15 is machined in the right side of the tail part 1 (the machining groove increases the contact opportunity of high-pressure water and steel grit), the left through hole of the inner groove I15 is a sand channel I13, and the right through hole of the inner groove I15 is a sand channel II 17; the transition part 16 is processed by the inner groove I15 and the sand passage II 17, the diameter of the sand passage II 17 is larger than that of the sand passage I13, and the shape of the transition part 16 is an arc (high-pressure water which is favorable for entering the sand passage II 17 from the water joint I3). When the high-pressure gas sand reaches the sand channel II 17 through the sand channel I13, the high-pressure water and the high-pressure gas sand contact process is arranged at the sand channel II 17 due to the diameter expansion process, so that the surfaces of the steel sand are coated with water as much as possible, and when the steel sand with water contacts the surfaces of the ship bodies, a water film is attached to the surfaces of rust and impurities stripped from the surfaces of the ship bodies, so that dust emission is effectively avoided. The lower right part of the tail part 1 is provided with a water joint internal thread I14, and the water joint internal thread I14 is communicated with the internal groove I15; the water joint internal thread I14 is connected with the water joint I3.
Machining a head sand passage 26 in the center of the head 2, wherein the head sand passage 26 and the sand passage II 17 are consistent in size and are concentrically connected; an inner groove II 23 is formed on the left side of the head 2, the inner groove II 23 extends to the right side to form a ring 24, and the right side of the ring 24 penetrates through the right side surface of the head 2 through a water hole 27; the inner groove ii 23 is in transitional connection with the ring 24 by means of a chamfer 231. The inner side of the circumferential surface of the inner groove ii 23 is provided with a seal groove iii 22, and the outer side is provided with a seal groove ii 21 (seal grooves iii 22 and ii 21 are provided to prevent air leakage and water leakage at the joint surface). The left bottom of the head part 2 is provided with a water joint internal thread II 25, and the water joint internal thread II 25 is communicated with the internal groove II 23; the internal thread II 25 of the water joint is connected with the water joint II 5, and high-pressure water at the water joint II is discharged from the water hole 27 to form an umbrella-shaped water protection cover. The right side of the head 2 is provided with an external thread 28, the head is connected with the cover (4) through an internal thread 41, the end face of the cover 4 is provided with a water outlet hole 42, and the shape of the water outlet hole is changed to adapt to different working environments.
Through the shape improvement to sand passageway for water and high-pressure gas sand mixture are better in the mixed effect of sand passageway II, reduce the raise dust. The water used in the mixing and the water for preventing dust are separately supplied, so that the water pressure is easy to adjust, the mixing effect is good, and the protected water mist is easier to absorb.
When in specific use, the invention is described with reference to the drawings for convenient understanding;
As shown in fig. 6, in operation, an operator aligns the spray head to the hull, the high-pressure air-sand mixture impacts the hull from the sand channel, the high-pressure air-sand mixture has a mixing process with high-pressure water at the sand channel II, meanwhile, the high-pressure air-sand mixture is positioned at the center of the sand channel II due to high pressure, the head sand channel and the sand channel II are consistent in size, concentric connection is maintained, and the high-pressure air-sand mixture is directly sprayed to the surface of the hull to remove rust. The high-pressure water from the water joint I3 is mixed with the steel sand partially, most of the water cannot enter the center of the sand channel II, is sprayed out along the pipe wall of the sand channel II and the pipe wall of the head sand channel, and generates a certain thrust to surrounding gas by high-pressure gas sand direct spraying, so that the high-pressure water from the water joint I3 forms a small protective water cover after coming out of the head sand channel. The high-pressure water from the water joint II 5 is discharged from the water hole 27 to form umbrella-shaped protective water cover on the outer layer. Because of the double protection of water, the dust emission during the rust removal of the ship body is greatly reduced, and the ship body has a certain protection effect on operators and the surrounding environment.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An environmental protection type sand blasting device's shower nozzle, characterized by comprising: the novel sand-collecting device comprises a head part (2) and a tail part (1) which are connected through bolts, wherein a through hole is formed in the middle of the tail part (1), an inner groove I (15) is formed in the right side of the tail part (1), a sand channel I (13) is formed in the left through hole of the inner groove I (15), and a sand channel II (17) is formed in the right through hole of the inner groove I (15);
The lower part of the right side of the tail part (1) is provided with a water joint internal thread I (14), and the water joint internal thread I (14) is communicated with the internal groove I (15);
The center of the head (2) is provided with a head sand channel (26), and the head sand channel (26) and the sand channel II (17) are consistent in size and are concentrically connected;
an inner groove II (23) is formed in the left side of the head part (2), the inner groove II (23) extends to the right side to form a ring (24), and the right side of the ring (24) penetrates through the right side surface of the head part (2) through a water hole (27);
The left bottom of the head part (2) is provided with a water joint internal thread II (25), and the water joint internal thread II (25) is communicated with the internal groove II (23);
An external thread (28) is processed on the right side of the head part (2) and is connected with the cover (4) through an internal thread (41);
The inner groove I (15) and the sand channel II (17) are provided with a transition part (16), the diameter of the sand channel II (17) is larger than that of the sand channel I (13), and the shape of the transition part (16) is an arc;
The end face of the cover (4) is provided with a water outlet hole (42);
the water joint internal thread I (14) is connected with the water joint I (3), and the water joint internal thread II (25) is connected with the water joint II (5).
2. The spray head of an environment-friendly sand blasting apparatus as claimed in claim 1, wherein: the left side of afterbody (1) is the flange, the left surface processing seal groove I (12) of flange, processing bolted connection hole (11) on the flange.
3. The spray head of an environment-friendly sand blasting apparatus as claimed in claim 1, wherein: and the inner side of the circumferential surface of the inner groove II (23) is provided with a sealing groove III (22), and the outer side of the circumferential surface of the inner groove II is provided with a sealing groove II (21).
4. The spray head of an environment-friendly sand blasting apparatus as claimed in claim 1, wherein: the inner groove II (23) is connected with the ring (24) in a transitional way through a chamfer (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489475.4A CN110281166B (en) | 2019-06-06 | 2019-06-06 | Spray head of environment-friendly sand blasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489475.4A CN110281166B (en) | 2019-06-06 | 2019-06-06 | Spray head of environment-friendly sand blasting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110281166A CN110281166A (en) | 2019-09-27 |
| CN110281166B true CN110281166B (en) | 2024-04-30 |
Family
ID=68003441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910489475.4A Active CN110281166B (en) | 2019-06-06 | 2019-06-06 | Spray head of environment-friendly sand blasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110281166B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770924B (en) * | 2021-08-30 | 2023-05-12 | 南京航空航天大学 | Metal bond grinding wheel controllable sand blasting dressing device and dressing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988004220A1 (en) * | 1986-12-03 | 1988-06-16 | K.G. McCOLL & COMPANY LIMITED | Method and apparatus for wet abrasive blasting |
| US4995202A (en) * | 1990-04-26 | 1991-02-26 | The Dow Chemical Company | Nozzle unit and method for using wet abrasives to clean hard surfaces |
| US5509849A (en) * | 1994-04-18 | 1996-04-23 | Church & Dwight Co., Inc. | Blast nozzle for water injection and method of using same for blast cleaning solid surfaces |
| US5885133A (en) * | 1994-06-20 | 1999-03-23 | Abclean America, Inc. | Apparatus and method for cleaning tubular members |
| CN1748940A (en) * | 2005-09-22 | 2006-03-22 | 刘毅 | Axial sucking type dustless sand blasting gun |
| CN101670558A (en) * | 2009-09-28 | 2010-03-17 | 南京大地水刀股份有限公司 | Equal negative pressure bidirectional sand inlet water cutting head |
| CN203509949U (en) * | 2013-10-18 | 2014-04-02 | 湖南有色重型机器有限责任公司 | Sand blasting and scale removal system for inner and outer walls of steel tubes |
| CN204505028U (en) * | 2015-03-16 | 2015-07-29 | 湖南唯佳科技有限公司 | A kind of high-pressure water jet spray gun |
| CN204997535U (en) * | 2015-08-20 | 2016-01-27 | 姚正中 | Novel sprinkler structure of borax device is spouted to movable type |
| CN206066244U (en) * | 2016-08-25 | 2017-04-05 | 北京市燃气集团有限责任公司 | A kind of live 3PE repaired mouths sand blasting apparatus of speedily carrying out rescue work |
| CN107825300A (en) * | 2017-11-20 | 2018-03-23 | 青岛北海船舶重工有限责任公司 | A kind of high pressure atomizing ship rust removalling equipment and ship derusting method |
| CN108406607A (en) * | 2018-03-16 | 2018-08-17 | 广东中远海运重工有限公司 | A kind of novel environment friendly water mist sand rifle |
| CN208543370U (en) * | 2018-06-27 | 2019-02-26 | 郑州辉锐数控设备有限公司 | A kind of big flow water sandblasting spray head |
| CN208854454U (en) * | 2018-08-13 | 2019-05-14 | 中山凯力海工装备有限公司 | A kind of water mist environmental protection sand-blasting gun and equipment |
| CN210414149U (en) * | 2019-06-06 | 2020-04-28 | 舟山市龙山船厂有限公司 | Environment-friendly sand blasting unit's shower nozzle |
-
2019
- 2019-06-06 CN CN201910489475.4A patent/CN110281166B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988004220A1 (en) * | 1986-12-03 | 1988-06-16 | K.G. McCOLL & COMPANY LIMITED | Method and apparatus for wet abrasive blasting |
| US4995202A (en) * | 1990-04-26 | 1991-02-26 | The Dow Chemical Company | Nozzle unit and method for using wet abrasives to clean hard surfaces |
| US5509849A (en) * | 1994-04-18 | 1996-04-23 | Church & Dwight Co., Inc. | Blast nozzle for water injection and method of using same for blast cleaning solid surfaces |
| US5885133A (en) * | 1994-06-20 | 1999-03-23 | Abclean America, Inc. | Apparatus and method for cleaning tubular members |
| CN1748940A (en) * | 2005-09-22 | 2006-03-22 | 刘毅 | Axial sucking type dustless sand blasting gun |
| CN101670558A (en) * | 2009-09-28 | 2010-03-17 | 南京大地水刀股份有限公司 | Equal negative pressure bidirectional sand inlet water cutting head |
| CN203509949U (en) * | 2013-10-18 | 2014-04-02 | 湖南有色重型机器有限责任公司 | Sand blasting and scale removal system for inner and outer walls of steel tubes |
| CN204505028U (en) * | 2015-03-16 | 2015-07-29 | 湖南唯佳科技有限公司 | A kind of high-pressure water jet spray gun |
| CN204997535U (en) * | 2015-08-20 | 2016-01-27 | 姚正中 | Novel sprinkler structure of borax device is spouted to movable type |
| CN206066244U (en) * | 2016-08-25 | 2017-04-05 | 北京市燃气集团有限责任公司 | A kind of live 3PE repaired mouths sand blasting apparatus of speedily carrying out rescue work |
| CN107825300A (en) * | 2017-11-20 | 2018-03-23 | 青岛北海船舶重工有限责任公司 | A kind of high pressure atomizing ship rust removalling equipment and ship derusting method |
| CN108406607A (en) * | 2018-03-16 | 2018-08-17 | 广东中远海运重工有限公司 | A kind of novel environment friendly water mist sand rifle |
| CN208543370U (en) * | 2018-06-27 | 2019-02-26 | 郑州辉锐数控设备有限公司 | A kind of big flow water sandblasting spray head |
| CN208854454U (en) * | 2018-08-13 | 2019-05-14 | 中山凯力海工装备有限公司 | A kind of water mist environmental protection sand-blasting gun and equipment |
| CN210414149U (en) * | 2019-06-06 | 2020-04-28 | 舟山市龙山船厂有限公司 | Environment-friendly sand blasting unit's shower nozzle |
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| CN110281166A (en) | 2019-09-27 |
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