CN206509906U - A kind of steel pipe inner wall sand blasting unit - Google Patents
A kind of steel pipe inner wall sand blasting unit Download PDFInfo
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- CN206509906U CN206509906U CN201621478116.7U CN201621478116U CN206509906U CN 206509906 U CN206509906 U CN 206509906U CN 201621478116 U CN201621478116 U CN 201621478116U CN 206509906 U CN206509906 U CN 206509906U
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- sand
- sand blasting
- blasting unit
- wall
- steel pipe
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Abstract
The utility model provides a kind of steel pipe inner wall sand blasting unit and sand blasting process, quartz sand flow at high speed in steel pipe is blown using compressed air, sand blasting unit is moved forward in promoting, compressed air is much larger than interior sand blasting unit translational speed with quartz sand mixture translational speed, ring-like scatter is ejected into inside pipe wall with 50 °~70 ° of angle after the loose sand head that compressed air and quartz sand pass through interior sand blasting unit, clear up pipe dirt, rust thing, continuously moved forward with interior sand blasting unit, inside pipe wall is continuously cleaned.Sand blasting unit is spaced apart 3~5 in pipe in the steel pipe inner wall sand blasting process, improves inner wall surface disposal ability, can effectively remove dirt and rust thing, surface cleanness reaches S after processinga2.5。
Description
Technical field
The present invention relates to a kind of steel pipe inner wall sand blasting unit, the present invention is mainly suitable for cleaning steel pipe dirt, rust thing, including
Water-supply-pipe, petroleum pipeline etc., are particularly suitable for use in the cleaning of long distance line steel pipe inner wall, and treated length can reach 5 kilometers.
Background technology
Industry and daily life in, the conveying of various fluid media (medium)s is mainly completed using steel pipe, including sewage, clear water,
Profit, crude oil etc., the corrosion using inside pipe wall after a period of time due to conveying liquid is adhered to, deposition forms dirt so that steel pipe
Aperture reduces, and transporting resistance increase, conveying capacity reduces, and the Environmental security accidents such as leakage occur for the perforation of steel pipe wall erosion, because
This to steel pipe inner wall, it is necessary to carry out special preservative treatment.Blasting treatment is needed steel pipe inner wall before special preservative treatment is carried out
Dirt, the thing etc. that becomes rusty, which is cleaned out, exposes metal true qualities, and inner wall surface has certain roughness, steel pipe inner wall is combined with anti-corrosion material
Do not fall off closely.Because steel elbow is more, and there is climb and fall, length is big, and conventional method and device do not reach processing requirement.
The content of the invention
It is an object of the present invention to provide a kind of steel pipe inner wall sand blasting unit, it is applied to the sandblasting of long distance line steel pipe inner wall
Processing, treated length can reach 5 kilometers, can pass freely through 1.5 times of latus rectum elbows, the surface cleanness of steel pipe inner wall can after processing
Reach Sa2.5, the requirement of the preservative treatments such as steel pipe inner wall spray painting squeezing and coating can be met.
To solve the problem of prior art is present, the technical scheme is that：A kind of steel pipe inner wall sand blasting unit, it is special
Levy and be：Including outer seal sleeve, sub-sand head, neck bush, described sub-sand head mutually contacted with neck bush connect and be embedded at it is outer close
In the cavity of big envelope, the structure of described sub-sand head is hub-shaped, and the center of sub-sand head and neck bush is equipped with connecting bolt, even
Sand-guiding tube and loose sand head are arranged with connecting bolt, described sand-guiding tube is arranged between connecting bolt and sub-sand head and neck bush,
Connecting bolt is fixed by fixing nut with sub-sand head and neck bush.
Being shaped as described loose sand head is hollow tubaeform, and its frustoconical bevel angle is 50 °~70 °.
Described outer seal sleeve is processed by elastomeric material.
Described sub-sand head and loose sand head are made up of wear resistant and impact resistant material.
Compared with prior art, advantages of the present invention is as follows：
1st, simple and compact for structure, applicable different size steel pipe inner wall blasting treatment, surface cleanness after processing of the invention
Reach Sa2.5；
2nd, loose sand head of the present invention is the conical surface, and guiding compressed air and quartz sand mixture are sprayed at a high speed with 50 °~70 ° of angle
Inside pipe wall is mapped to, is effectively taken out stains and the thing that becomes rusty；
3rd, sand blasting unit outer seal sleeve is by elastomeric material in the present invention, and excessively curved ability is strong, can pass freely through 1.5 times of latus rectums curved
Head；
4th, sand blasting unit is spaced apart 3~5 in order in pipe in the present invention, improves inner wall surface disposal ability.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of sub-sand head；
Fig. 3 is Fig. 2 left view；
Fig. 4 is the structural representation of sand-guiding tube；
Fig. 5 is the structural representation of neck bush；
Fig. 6 is the structural representation of loose sand head；
Fig. 7 is steel pipe inner wall sand blasting process figure；
Description of reference numerals：Description of reference numerals：1- outer seal sleeves；2- sub-sand heads；3- sand-guiding tubes；4- neck bush；5- dissipates
Sand head；6- connecting bolts, 7- fixing nuts, 8- air inlet pipe, 9- quartz sands, 10- treats sand blasting unit in sandblasting steel pipe, 11-.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of steel pipe inner wall sand blasting unit, referring to Fig. 1-Fig. 6：It is described including outer seal sleeve 1, sub-sand first 2, neck bush 4
Sub-sand first 2 is mutually contacted with neck bush 4 and connects and be embedded in the cavity of outer seal sleeve 1, and the structure of described sub-sand first 2 is wheel hub
Parameter is shown in Fig. 2 and Fig. 3, and the center of sub-sand first 2 and neck bush 4, which is equipped with connecting bolt 6, connecting bolt 6, is arranged with sand-guiding tube 3
With loose sand first 5, described sand-guiding tube 3 is arranged between connecting bolt 6 and sub-sand first 2 and neck bush 4, and connecting bolt 6 passes through solid
Determine nut 7 to fix with sub-sand first 2 and neck bush 4.
Being shaped as described loose sand first 5 is hollow tubaeform, and its frustoconical bevel angle is 50 °~70 ° referring to Fig. 6.
Described outer seal sleeve 1 is processed by elastomeric material, plays support and sealing function, and easily by elbow.
Described sub-sand first 2 and loose sand first 5 are made up of wear resistant and impact resistant material, are protected in the high speed impact lower surface of quartz sand
Hold complete, it is ensured that do not impacted the phenomenons such as groove, crackle, fracture.
The hole area of crossing of the interior sand blasting unit sub-sand first 2 is adapted with compressed air require so that compressed air and stone
Sand mixture translational speed is more than interior sand blasting unit translational speed.
Swiftly flowing compressed air and quartz sand mixture are flowed through empty between sand-guiding tube 3 and neck bush 4 by sub-sand first 2
Chamber is ejected into inside pipe wall at a high speed with 50 °~70 ° of angle by first 5 conical surface of loose sand, effectively takes out stains and become rusty to loose sand head
Thing.
The structure of described outer seal sleeve is " work " shape cylinder.
A kind of steel pipe inner wall sand blasting process is referring to Fig. 7：Interior sand blasting unit is positioned in pipe, the external seal of sanding machine
Set is contacted with tube wall, and quartz sand flow at high speed in steel pipe is blown using compressed air, promotes interior sand blasting unit to move forward, stone
Sand translational speed is more than ring after interior sand blasting unit translational speed, the loose sand head that compressed air and quartz sand pass through interior sand blasting unit
Type scatters is ejected into inside pipe wall with 50 °~70 ° of angle, clears up pipe dirt, rust thing, and the pipe dirt and rust thing after cleaning are with interior
The movement of sand blasting unit takes it out steel pipe, and inside pipe wall is cleaned out.
Described compressed air pressure is 0.5~1.0MPa, compressed air is in 20~50m/s of steel velocity in pipes.
Described quartz sand hardness is Mohs 5~7, and granularity is 10~30 mesh.
Interior sand blasting unit is spaced apart 3~5 in pipe, improves inner wall surface disposal ability.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (4)
1. a kind of steel pipe inner wall sand blasting unit, it is characterised in that：Including outer seal sleeve（1）, sub-sand head（2）, neck bush（4）, institute
The sub-sand head stated（2）And neck bush（4）Mutually series winding connects and is embedded at outer seal sleeve（1）Cavity in, described sub-sand head（2）
Structure be hub-shaped, sub-sand head（2）And neck bush（4）Center be equipped with connecting bolt（6）, connecting bolt（6）On be arranged
There is sand-guiding tube（3）With loose sand head（5）, described sand-guiding tube（3）It is arranged at connecting bolt（6）With sub-sand head（2）And neck bush（4）
Between, connecting bolt（6）Pass through fixing nut（7）With sub-sand head（2）And neck bush（4）It is fixed.
2. a kind of steel pipe inner wall sand blasting unit according to claim 1, it is characterised in that：Described loose sand head（5）Shape
Shape is hollow tubaeform, and its frustoconical bevel angle is 50 °~70 °.
3. a kind of steel pipe inner wall sand blasting unit according to claim 1 or 2, it is characterised in that：Described outer seal sleeve（1）
Processed by elastomeric material.
4. a kind of steel pipe inner wall sand blasting unit according to claim 3, it is characterised in that：Described sub-sand head（2）With dissipate
Sand head（5）It is made up of wear resistant and impact resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621478116.7U CN206509906U (en) | 2016-12-30 | 2016-12-30 | A kind of steel pipe inner wall sand blasting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621478116.7U CN206509906U (en) | 2016-12-30 | 2016-12-30 | A kind of steel pipe inner wall sand blasting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206509906U true CN206509906U (en) | 2017-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621478116.7U Active CN206509906U (en) | 2016-12-30 | 2016-12-30 | A kind of steel pipe inner wall sand blasting unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737228A (en) * | 2016-12-30 | 2017-05-31 | 陕西天元石化建设工程有限公司 | A kind of steel pipe inner wall sand blasting unit and sand blasting process |
| CN112318236A (en) * | 2020-10-20 | 2021-02-05 | 高建文 | High-precision grinding equipment for machining inner wall of long pipe fitting |
-
2016
- 2016-12-30 CN CN201621478116.7U patent/CN206509906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737228A (en) * | 2016-12-30 | 2017-05-31 | 陕西天元石化建设工程有限公司 | A kind of steel pipe inner wall sand blasting unit and sand blasting process |
| CN112318236A (en) * | 2020-10-20 | 2021-02-05 | 高建文 | High-precision grinding equipment for machining inner wall of long pipe fitting |
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