CN1265347A - Cyclonic jetting and sucking centrifugal sand-blasting method - Google Patents
Cyclonic jetting and sucking centrifugal sand-blasting method Download PDFInfo
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- CN1265347A CN1265347A CN 00105784 CN00105784A CN1265347A CN 1265347 A CN1265347 A CN 1265347A CN 00105784 CN00105784 CN 00105784 CN 00105784 A CN00105784 A CN 00105784A CN 1265347 A CN1265347 A CN 1265347A
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Abstract
The present invention relates to one sand-blasting method based on jetting and sucking principle and centrifugal principle to produce hollow conic sand-air jet flow. Unlike available sand-blasting method, which utilizes high-pressure sand cylinder based on pressure-type sand-blasting principle and guide cone based on guiding angle-expanding principle, the present invention adopts jetting and sucking sand blasting and cyclonic angle expanding so as t make full use of energy in the process of generating hollow ocnic sand-air jet flow, to simplify the structure and lower the cost.
Description
This disclosure of the Invention a kind of Cyclonic jetting and sucking centrifugal sand-blasting method, relate to and a kind ofly inhaling and centrifugal principle can produce the blasting method of hollow taper sand gas jet flow based on penetrating, belong to the industrial surface technical field of sandblasting.
Hollow taper jet is different from axial columnar jets and is, it is to have radial component when having axial injection direction, and jet forms hollow taper jet under the synthesis of both direction power.In being applied in now mostly, hollow taper jet blasting method manages in the sandblast.The sandblast principle that the pipe blasting method adopts now and the angle method that expands are more single.The pipe blasting method all adopts pressure-type spray sandy plain reason and guide type to expand the angle method in nearly all.This pressure type sandblast, guide type expands the interior pipe blasting method at angle need connect stable high speed and high pressure sand gas mixed flow.Just need be equipped with complete pressure type sand gas mixed flow system could work.The method that forms hollow taper jet is forwards to stretch out the taper guide way of a rigidity at the center of usual pressure formula column sandblast jet nozzle again along axis, and taper guide way forced jets is to radially deflection, and axially the column sand gas jet flow has been split into hollow taper.
Though the interior pipe blasting method that adopts pressure type sandblast and guide type to expand the angle principle has obtained general application, also has limitation on the principle.As: 1), cause equipment complete machine bulky complex to involve great expense owing to need complete pressure type sand gas mixed flow system that the sand air-flow is provided; 2) sand tank belongs to pressure vessel, has not only increased the difficulty of use and management, and loads the sand material at every turn and must stop sandblast, and it is discontinuous to cause the sandblast operation to be interrupted; 3) the taper guide way is installed on the sand air-flow central axis, a lot of energy when bearing guide effect, have also been consumed, not only cone wearing and tearing itself are very fast, sand material percentage of damage improves, and greatly reducing the flying speed and the sandblast efficient of sand grains, there is the energy consumption of non-sandblast purpose in this blasting method; 4) the taper guide way is installed on the sand air-flow central axis, and its fixed structure has taken bigger radial dimension space, has limited the application on the pipe in small-bore of this kind blasting method.5) sand gas mixed flow is in the high-voltage high-speed state in the overall process of carrying, and has heavy-duty grinding, and all devices relevant surfaces must be made Wear-resistant Treatment in the sand gas mixed flow course of conveying, causes complex structure, the cost height.
The objective of the invention is to propose a kind of Cyclonic jetting and sucking centrifugal sand-blasting method.The high speed sand gas jet flow from the ejection of sand gas jets has the rotating centrifugal component under the gas mulling chamber effect revolving, thereby produces hollow taper jet.Cyclonic jetting and sucking centrifugal sand-blasting method has been avoided the limitation of existing interior pipe blasting method from theory structure, thereby reaches the simplification complete machine structure, reduces cost, the convenient use, the purpose of raising sandblast efficient and capacity usage ratio.
Operation principle of the present invention is such: comprise the sand gas jets on the Cyclonic jetting and sucking centrifugal sand-blasting method structure, revolve gas mulling chamber, from tangential angle to the jet circular spiral air nozzle in mulling chamber or from the air nozzle of tangential insertion, sand-ejecting tube and withstand voltage tracheae etc.Compressed air is by the circular spiral air nozzle or tangentially insert air nozzle and spray into and revolve gas mulling chamber, revolves the high speed cyclone that forms in the gas mulling chamber to the axially-movable of sand gas jets direction.Negative pressure appears in the sand-ejecting tube sand export under the effect of high velocity air, and sand material source source constantly is transported into along sand-ejecting tube revolves gas mulling chamber.Mix formation helical form sand gas mixed flow with the sand material at the swirling eddy that revolves gas mulling chamber mesohigh high speed and pour into the sand gas jets.The sand gas jet flow that ejects from the sand gas jets forms hollow taper jet at rotary centrifugal force radially with axially under the acting in conjunction of power.
The mode that Cyclonic jetting and sucking centrifugal sand-blasting method of the present invention adopts the gentle flow point of the distinctive sand flow of jet absorption type sandblast not carry, sand material and compressed air move to the mulling chamber that is positioned at the sand-blasting gun head and just obtain mixing.The sand material carries overall process all to be in normal pressure and shallow negative pressure state, embodied jet absorption type sandblast operate implement convenient, simple and direct and advantage cheaply.For pipe sandblast in satisfying to the little requirement of must trying one's best of rifle body radial dimension, can also adopt the sleeve pipe mode of movement of air-flow pipe box sand-ejecting tube.
The present invention compared with prior art has the following advantages:
1. corollary equipment required for the present invention is simple, easy to operate.Owing to adopt jet absorption type sandblast principle, a complete set of pressure type sand gas hybrid system that the prior art of having avoided the pressure-type spray sandy plain to manage must be equipped with.The core component of pressure type sand gas hybrid system is high pressure sand tank and sand production rate control valve.The existence of high-pressure bottle is the very big burden of current stress formula sandblast work; The sand production rate control valve be need be under high pressure conditions can precision maneuver accurate mechanical equipment, so complex structure, make require and the operation requirement also very high.The present invention need not pressure type sand gas hybrid system.Can simply arrive in use only needs air inlet pipe to connect compressed air, and sand-ejecting tube injects the sand heap just can carry out the sandblast operation.Carry out the sand amount as need and regulate, because of being under normal pressure, it is very easy to regulate.
2. the present invention can continuous operation.Owing to adopt jet absorption type sandblast principle, when having avoided adopting pressure-type spray sandy plain reason since the sandblast that occurs to pressure sand tank dress sand intermittently.The present invention can work continuously when operate as normal.
3. required for the present invention simple in structure, size is little.There are not taper guide way and mount fixing structure thereof.There is not the space waste, so compact conformation is brief.Especially when adopting circular spiral air nozzle and sand air-flow sleeve pipe mode of movement, radial dimension can be compressed to minimum, more be applicable to the sandblast of small-bore interior pipe.
4. capacity usage ratio height of the present invention.Do not need the taper guide way to change the direction of sand gas jet flow, the sandblast process does not have the principle loss beyond the sandblast purpose.So capacity usage ratio height.
5. abrading section of the present invention is few.The sand materials flow has only when reaching high speed and high pressure simultaneously and just has high grindability, and the present invention has only the part in sand gas jets and mulling chamber need make Wear-resistant Treatment.
Principle process of the present invention further specifies as embodiment in conjunction with the accompanying drawings to adopt interior pipe sand-blasting gun of the present invention.
Fig. 1 is the concrete structure schematic diagram that adopts the interior pipe of the Cyclonic jetting and sucking centrifugal sand-blasting gun of the principle of the invention.
The pipe sand-blasting gun comprises the sleeve pipe maker, soft sleeve pipe, circular spiral air nozzle, sand-ejecting tube sand export, whirlwind mulling chamber, sand gas jet flow nozzle etc. in the Cyclonic jetting and sucking centrifugal.The ring-type gas circuit (7) that compressed air enters the sleeve pipe interlayer along column tracheae (9) at a high speed by sleeve pipe maker (8).The circular spiral air nozzle (5) of gas circuit end sprays into whirlwind mulling chamber (3) with high-voltage high-speed compressed air with the tangential angle of spiral, enough big negative pressure appears in the mobile sand-ejecting tube sand export (4) that is in axial location that causes of high-speed gas, sand material source source constantly is admitted to by sand-ejecting tube (6) and sand export (4) from sand inlet (10) revolves gas mulling chamber (3), and the sand material mixes also shape ejection sand gas jets (2) in the shape of a spiral with spiral air flow in revolving gas mulling chamber (3).The sand material of ejection has had radial force component under action of centrifugal force, the sand air-flow presents hollow taper jet (1) under the synthesis of axial force and radial load.
Claims (5)
1. Cyclonic jetting and sucking centrifugal sand-blasting method, it is characterized in that having air nozzle spiral character or that have the tangential angle in footpath blast injection is gone into to have the whirlwind mulling chamber of revolving body geometric properties, the outlet in mulling chamber is the sand gas blowout nozzle that slightly shrink in the relative mulling of bore chamber.
2. blasting method according to claim 1 is characterized in that having in the whirlwind mulling chamber of revolving body geometric properties, and the motion of sand material and air has spiral characteristic.
3. blasting method according to claim 1, the central axis that it is characterized in that having the tangent line of air nozzle overdraught spiral character or that have the tangential angle in footpath and sand gas jet flow is both not parallel also non-intersect.
4. blasting method according to claim 1, the sand export that it is characterized in that sand-ejecting tube is towards whirlwind mulling chamber and sand gas blowout nozzle direction.
5. blasting method according to claim 1, it is characterized in that when be applied to small-bore in pipe during sandblast, adopt the sand gas mode of movement of circular spiral air nozzle and air-flow pipe box sand-ejecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00105784A CN1086330C (en) | 2000-04-07 | 2000-04-07 | Cyclonic jetting and sucking centrifugal sand-blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00105784A CN1086330C (en) | 2000-04-07 | 2000-04-07 | Cyclonic jetting and sucking centrifugal sand-blasting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1265347A true CN1265347A (en) | 2000-09-06 |
| CN1086330C CN1086330C (en) | 2002-06-19 |
Family
ID=4577939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00105784A Expired - Fee Related CN1086330C (en) | 2000-04-07 | 2000-04-07 | Cyclonic jetting and sucking centrifugal sand-blasting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1086330C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695895A (en) * | 2017-11-22 | 2018-02-16 | 河南理工大学 | A kind of device and method that nozzle wear is reduced using rotary abrasive jet |
| CN111745549A (en) * | 2020-07-28 | 2020-10-09 | 克拉玛依市联益工贸有限公司 | Oil pipe sandblast belt cleaning device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2151810Y (en) * | 1993-03-12 | 1994-01-05 | 尚柏喷砂机械有限公司 | Cyclone separating tube |
| CN2180408Y (en) * | 1994-01-21 | 1994-10-26 | 庞志红 | Circular sand-blasting machine |
-
2000
- 2000-04-07 CN CN00105784A patent/CN1086330C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695895A (en) * | 2017-11-22 | 2018-02-16 | 河南理工大学 | A kind of device and method that nozzle wear is reduced using rotary abrasive jet |
| CN107695895B (en) * | 2017-11-22 | 2024-01-05 | 河南理工大学 | Device and method for reducing nozzle wear by using rotary abrasive jet |
| CN111745549A (en) * | 2020-07-28 | 2020-10-09 | 克拉玛依市联益工贸有限公司 | Oil pipe sandblast belt cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1086330C (en) | 2002-06-19 |
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