CN115608531B - Anticorrosion spraying equipment is melt-blown to major diameter steel pipe - Google Patents
Anticorrosion spraying equipment is melt-blown to major diameter steel pipe Download PDFInfo
- Publication number
- CN115608531B CN115608531B CN202211187435.2A CN202211187435A CN115608531B CN 115608531 B CN115608531 B CN 115608531B CN 202211187435 A CN202211187435 A CN 202211187435A CN 115608531 B CN115608531 B CN 115608531B
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- box
- powder
- box body
- steel pipe
- spraying
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- 238000005507 spraying Methods 0.000 title claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 74
- 239000007921 spray Substances 0.000 claims abstract description 28
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000003973 paint Substances 0.000 abstract description 9
- 238000007664 blowing Methods 0.000 abstract description 8
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 4
- 238000003491 array Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 4
- 238000005536 corrosion prevention Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/081—Plant for applying liquids or other fluent materials to objects specially adapted for treating particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/12—Plant for applying liquids or other fluent materials to objects specially adapted for coating the interior of hollow bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Electrostatic Spraying Apparatus (AREA)
Abstract
The invention discloses a large-diameter steel pipe melt-blowing anti-corrosion spraying device, which relates to the technical field of large-diameter steel pipe anti-corrosion, and comprises a powder box and a recovery pipe which is connected with the bottom of the powder box in a sealing way, wherein the powder box comprises a powder spraying module, a box body and an exhaust box, the upper part of the box body is obliquely arranged forwards and upwards, the upper end of the box body is opened, and the left edge and the right edge of the box body are arranged into an arc shape which is suitable for the inner wall of a steel pipe to be sprayed; the beneficial effects are that: by adopting the powdery paint and utilizing the electrostatic adsorption principle, the powder can be quickly coagulated after being adsorbed on the heated steel pipe, so that the problem of uneven spraying caused by paint flowing is avoided; setting a plurality of spray gun arrays, ensuring the spraying speed and improving the spraying uniformity; the connecting structure of the exhaust box and the box body is arranged, so that the situation that powder accumulation at the bottom of the box body affects powder recovery is avoided; the spray gun is arranged to coincide with the radial line of the steel pipe, so that the direction of powder sprayed by the spray gun is vertical to the corresponding position of the inner wall of the steel pipe, and the powder adsorption rate is guaranteed to be improved.
Description
Technical Field
The invention relates to the technical field of corrosion prevention of large-diameter steel pipelines, in particular to a large-diameter steel pipe melt-blowing corrosion prevention spraying device.
Background
At present, a cement pipeline or a liquid paint spraying steel pipe is mainly adopted in a regional structure water pipeline, the service life of the cement pipeline is 30 years, the service life of the liquid paint spraying pipeline is 20 years, the later maintenance cost is higher, the use of a large amount of reinforced concrete and paint does not accord with the environmental protection trend, the benefit rate of newly built projects planned in the future on renewable resources is improved year by year, and the future utilization of FBE corrosion prevention in a large-caliber steel pipeline as a water pipeline is a necessary trend.
The traditional large-diameter steel pipe (DN 4000 mm) is generally sprayed by liquid paint, because of the problems of anti-corrosion materials and spraying modes, uneven spraying thickness caused by low liquid paint condensation speed is easy to occur, the corrosion resistance is poor, the service life is generally about 10 years, and the phenomena of water leakage and pipe explosion can occur in the out-of-service condition.
Disclosure of Invention
The invention aims to solve the problems and provide a large-diameter steel pipe melt-blowing anti-corrosion spraying device.
The invention realizes the above purpose through the following technical scheme:
the utility model provides a major diameter steel pipe melts and spouts anticorrosive spraying equipment, includes powder case and its bottom sealing connection's recovery tube, the powder case includes powder spraying module, box and suction box, box upper portion is the slope of upper front and side setting, box upper end opening, and control the border and set up to the arc that suits with the steel pipe inner wall of waiting to spray, box upper end opening position fixed mounting powder spraying module, the box lower part sets up the suction box, the suction box bottom corresponds the recovery tube position has seted up the suction opening, the recovery tube keeps away from the one end of suction box is connected at outside powder recovery system; the front and the rear of the air suction box are respectively provided with an air suction front plate and an air suction rear plate, and the left and the right of the air suction box are respectively provided with air suction side plates; the front part of the bottom of the box body is provided with a box body bottom plate, the rear part of the bottom of the box body is provided with a box body rear plate, and the left side and the right side of the box body are respectively provided with box body side plates; the included angle between the air draft side plate and the box side plate is 150 degrees, the included angle between the air draft front plate and the box bottom plate is 180 degrees, and the air draft rear plate is connected with the box rear plate in a sliding mode.
Preferably: the powder spraying module comprises a fixed block, a mounting rod, a fixed pipe and a spray gun, wherein a plurality of mounting rods which are parallel to each other and are consistent in interval are fixedly arranged above the inside of the box body, a plurality of fixed blocks are fixedly arranged on the mounting rods, a fixed pipe is fixedly arranged on the fixed block, the spray gun is fixedly arranged on the fixed pipe, and the rear end of the spray gun is in sealing connection with an external powder supply system through a pipeline.
Preferably: the number of the mounting rods is 3, and the number of the fixing blocks on each mounting rod is 4.
Preferably: the setting direction of the spray gun is coincident along the radial line of the inner wall of the steel pipe.
Preferably: the powder case is installed on the upper surface of the front end of the inner FBE spraying cantilever, the upper surface of the front end of the inner FBE spraying cantilever is horizontally arranged, and the included angles between the bottom plate of the case body and the upper surface of the front end of the inner FBE spraying cantilever are all 30 degrees.
Compared with the prior art, the invention has the beneficial effects that:
1. by adopting the powdery paint and utilizing the electrostatic adsorption principle, the powder can be quickly coagulated after being adsorbed on the heated steel pipe, so that the problem of uneven spraying caused by paint flowing is avoided;
2. setting a plurality of spray gun arrays, ensuring the spraying speed and improving the spraying uniformity;
3. the connecting structure of the exhaust box and the box body is arranged, so that the situation that powder accumulation at the bottom of the box body affects powder recovery is avoided;
4. the spray gun is arranged to coincide with the radial line of the steel pipe, so that the direction of powder sprayed by the spray gun is vertical to the corresponding position of the inner wall of the steel pipe, and the powder adsorption rate is guaranteed to be improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic perspective view of a large-diameter steel pipe melt-blown anticorrosive spraying device according to the present invention.
Fig. 2 is a right side view of a large diameter steel pipe melt-blown corrosion protection spray apparatus according to the present invention.
Fig. 3 is a front view showing the installation state of the large-diameter steel pipe melt-blowing anticorrosive spraying apparatus according to the present invention.
Fig. 4 is a right side view showing the installation state of the large-diameter steel pipe melt-blowing anticorrosive spraying apparatus according to the present invention.
Fig. 5 is a schematic perspective view of the installation state of the large-diameter steel pipe melt-blowing anti-corrosion spraying device.
Fig. 6 is a diagram of experimental process of the structural arrangement of the suction opening of the large-diameter steel pipe melt-blowing anti-corrosion spraying equipment.
The reference numerals are explained as follows:
1. the inner FBE is sprayed with a cantilever; 2. a powder box; 21. a fixed block; 22. a mounting rod; 23. a case; 24. a fixed tube; 25. a spray gun; 26. an air draft side plate; 27. a bottom plate of the box body; 28. a powder; 29. a case back plate; 3. a mounting plate; 4. a heating unit; 5. an external heater; 6. and heating the frame.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention, and furthermore, the terms "first", "second", etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implying a number of the indicated technical features, whereby the features defining "first", "second", etc. may explicitly or implicitly include one or more of such features.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or by communication between two elements, the specific meaning of the terms in the present disclosure will be understood by those skilled in the art in view of the specific circumstances.
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-5, the large-diameter steel pipe melt-blowing anti-corrosion spraying equipment comprises a powder box 2 and a recovery pipe which is hermetically connected with the bottom of the powder box, wherein the recovery pipe is used for communicating and extracting powder 28 for recovery, the powder box 2 comprises a powder spraying module, a box body 23 and an exhaust box, the upper part of the box body 23 is obliquely arranged forwards and upwards, the upper end of the box body 23 is open, the left edge and the right edge of the box body are arranged into an arc shape which is suitable for the inner wall 1 of a steel pipe to be sprayed, the powder spraying module is fixedly arranged at the opening position of the upper end of the box body 23, the exhaust box is arranged at the lower part of the box body 23 and used for extracting powder 28, an exhaust opening is formed at the bottom of the exhaust box and corresponds to the position of the recovery pipe, the exhaust opening is used for being connected with the recovery pipe, and one end of the recovery pipe, which is far away from the exhaust box, is connected with an external powder 28 recovery system; the front and the back of the suction box are respectively provided with a suction front plate and a suction back plate, and the left and the right of the suction box are respectively provided with a suction side plate 26; the front of the bottom of the box 23 is provided with a box bottom plate, the rear of the bottom of the box 23 is provided with a box rear plate, and the left and right sides of the box 23 are respectively provided with box side plates; the included angle between the air draft side plate 26 and the box side plate is 150 degrees, the included angle between the air draft front plate and the box bottom plate is 180 degrees, and the air draft rear plate is connected with the box rear plate in a sliding manner; the powder spraying module comprises a fixed block 21, a mounting rod 22, a fixed pipe 24 and a spray gun 25, wherein a plurality of mounting rods 22 which are parallel to each other and are consistent in interval are fixedly arranged above the 1 part in the box body 23, the mounting rods 22 are used for supporting and mounting, a plurality of fixed blocks 21 are fixedly arranged on the mounting rods 22, the fixed blocks 21 are used for fixedly connecting, the fixed pipe 24 is fixedly arranged on the fixed blocks 21, the fixed pipe 24 is used for supporting, the spray gun 25 is fixedly arranged on the fixed pipe 24, the spray gun 25 is used for spraying powder, and the rear end of the spray gun 25 is in sealing connection with an external powder supply system through a pipeline; the number of the mounting rods 22 is 3, and the number of the fixing blocks 21 on each mounting rod 22 is 4; the setting direction of the spray gun 25 is coincident along the radial line of the wall in the steel pipe 1, so that the adsorption quantity of the powder 28 is ensured; the powder box 2 is arranged on the upper surface of the front end of the inner FBE spraying cantilever 1, the upper surface of the front end of the inner FBE spraying cantilever 1 is horizontally arranged, and the included angles between the bottom plate of the box body and the upper surface of the front end of the inner FBE spraying cantilever 1 are 30 degrees, so that the powder 28 can slide at the bottom of the box body 23 conveniently; the front end lower part fixed mounting of interior FBE spraying cantilever 1 has mounting panel 3, and corresponding powder case 2 position fixed mounting has heating unit 4 on the mounting panel 3, and the front end one side of interior FBE spraying cantilever 1 corresponds powder case 2 position and is provided with outer heater 5, sets up heating frame 6 on the outer heater 5, and heating frame 6 carries out supplementary heating to the steel pipe outside.
Working principle: when the powder spraying device is used, the heating unit 4 is matched with an external heater for use, the wall of the steel pipe 1 is heated, the wall part of the heated steel pipe 1 rotates to the opening position of the box 23, the external powder supply system supplies powder to the powder gun, the powder gun sprays powder 28 out of the box 23, the powder 28 is adsorbed on the heated wall of the steel pipe 1 to be sprayed by utilizing the electrostatic adsorption principle, spraying is completed, the powder 28 which is not sprayed on the wall of the steel pipe 1 is extracted from the suction box through the external powder 28 recovery system and is recovered from the bottom of the box 23, the problem that the powder 28 is accumulated at the bottom of the box 23 is avoided according to the structure and the angle of the connection position of the suction box and the box 23, and the unadsorbed powder 28 is ensured to enter the recovery pipe from the suction box smoothly.
The inner FBE spray boom 1, the mounting plate 3, the heating unit 4, the external heater 5, the heating frame 6, the external powder supply system and the external powder 28 recovery system are all common standard parts or parts known to those skilled in the art, and the structure and principle thereof are known to those skilled in the art through technical manuals or through routine experimental methods, so that they are not described herein.
The experimental process of the exhaust port structure is shown in fig. 6:
powder box No. 1: when the included angle between the air draft front plate and the box bottom plate is 118 degrees, more powder 28 is accumulated at the bottom of the powder box 2;
powder box No. 2: when the included angle between the air draft front plate and the box bottom plate is 160 degrees, less powder 28 is accumulated at the bottom of the powder box 2;
powder box No. 3: when the included angle between the air draft front plate and the box bottom plate is 180 degrees, the powder accumulation phenomenon is avoided at the bottom of the powder box 2.
In summary, the powder box No. 3 can avoid the accumulation of the powder 28 at the bottom of the powder box 2, and improve the recovery rate of the powder 28.
While there have been shown and described what are at present considered to be fundamental principles, main features and advantages of the present invention, it will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate only the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a anticorrosive spraying equipment of major diameter steel pipe melt-blown, includes the recovery tube of sealed connection of powder case (2) and its bottom, its characterized in that: the powder box (2) comprises a powder spraying module, a box body (23) and an exhaust box, wherein the upper part of the box body (23) is obliquely arranged forwards and upwards, the upper end of the box body (23) is provided with an opening, the left edge and the right edge of the box body are arranged into an arc shape which is matched with the inner wall of a steel pipe to be sprayed, the powder spraying module is fixedly arranged at the opening position of the upper end of the box body (23), the exhaust box is arranged at the lower part of the box body (23), an exhaust opening is formed in the bottom of the exhaust box corresponding to the position of the recovery pipe, and one end of the recovery pipe, which is far away from the exhaust box, is connected with an external powder (28) recovery system; the front and the rear of the air suction box are respectively provided with an air suction front plate and an air suction rear plate, and the left and the right of the air suction box are respectively provided with an air suction side plate (26); the front of the bottom of the box body (23) is provided with a box body bottom plate, the rear of the bottom of the box body (23) is provided with a box body rear plate, and the left and right sides of the box body (23) are respectively provided with box body side plates; the included angle between the air draft side plate (26) and the box side plate is 150 degrees, the included angle between the air draft front plate and the box bottom plate is 180 degrees, and the air draft rear plate is in smooth connection with the box rear plate.
2. A large diameter steel pipe melt blown corrosion resistant spray apparatus as claimed in claim 1 wherein: the powder spraying module comprises a fixed block (21), a mounting rod (22), a fixed pipe (24) and a spray gun (25), wherein a plurality of mounting rods (22) which are parallel to each other and are consistent in interval are fixedly arranged above the inside of a box body (23), a plurality of fixed blocks (21) are fixedly arranged on the mounting rods (22), the fixed pipe (24) is fixedly arranged on the fixed blocks (21), the spray gun (25) is fixedly arranged on the fixed pipe (24), and the rear end of the spray gun (25) is in sealing connection with an external powder supply system through a pipeline.
3. A large diameter steel pipe melt blown corrosion resistant spray apparatus as claimed in claim 2 wherein: the number of the mounting rods (22) is 3, and the number of the fixing blocks (21) on each mounting rod (22) is 4.
4. A large diameter steel pipe melt blown corrosion resistant spray apparatus as claimed in claim 2 wherein: the setting direction of the spray gun (25) is coincident along the radial line of the inner wall of the steel pipe.
5. A large diameter steel pipe melt blown corrosion resistant spray apparatus as claimed in claim 4 wherein: the powder box (2) is arranged on the upper surface of the front end of the inner FBE spraying cantilever (1), the upper surface of the front end of the inner FBE spraying cantilever (1) is horizontally arranged, and the included angles between the bottom plate of the box body and the upper surface of the front end of the inner FBE spraying cantilever (1) are all 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211187435.2A CN115608531B (en) | 2022-09-28 | 2022-09-28 | Anticorrosion spraying equipment is melt-blown to major diameter steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211187435.2A CN115608531B (en) | 2022-09-28 | 2022-09-28 | Anticorrosion spraying equipment is melt-blown to major diameter steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115608531A CN115608531A (en) | 2023-01-17 |
| CN115608531B true CN115608531B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211187435.2A Active CN115608531B (en) | 2022-09-28 | 2022-09-28 | Anticorrosion spraying equipment is melt-blown to major diameter steel pipe |
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| Country | Link |
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| CN (1) | CN115608531B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116393342A (en) * | 2023-03-30 | 2023-07-07 | 河南科技大学 | Array type induction heating device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795626A (en) * | 1995-04-28 | 1998-08-18 | Innovative Technology Inc. | Coating or ablation applicator with a debris recovery attachment |
| JP2001276688A (en) * | 2000-03-31 | 2001-10-09 | Kurimoto Ltd | Pipe outside surface coating device |
| CN201304391Y (en) * | 2008-11-24 | 2009-09-09 | 浙江华立涂装设备有限公司 | Spraying equipment for corrosion protection of inside and outside of steel pipe |
| CN214183725U (en) * | 2020-12-03 | 2021-09-14 | 河南爱莲管业有限责任公司 | Powder spraying recoverer for anti-corrosion pipeline of road and bridge |
| CN114918059A (en) * | 2022-07-21 | 2022-08-19 | 山东盛宝管道科技有限公司 | Spraying equipment for anticorrosive treatment of inner wall of large-diameter water delivery pipeline |
-
2022
- 2022-09-28 CN CN202211187435.2A patent/CN115608531B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795626A (en) * | 1995-04-28 | 1998-08-18 | Innovative Technology Inc. | Coating or ablation applicator with a debris recovery attachment |
| JP2001276688A (en) * | 2000-03-31 | 2001-10-09 | Kurimoto Ltd | Pipe outside surface coating device |
| CN201304391Y (en) * | 2008-11-24 | 2009-09-09 | 浙江华立涂装设备有限公司 | Spraying equipment for corrosion protection of inside and outside of steel pipe |
| CN214183725U (en) * | 2020-12-03 | 2021-09-14 | 河南爱莲管业有限责任公司 | Powder spraying recoverer for anti-corrosion pipeline of road and bridge |
| CN114918059A (en) * | 2022-07-21 | 2022-08-19 | 山东盛宝管道科技有限公司 | Spraying equipment for anticorrosive treatment of inner wall of large-diameter water delivery pipeline |
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| Publication number | Publication date |
|---|---|
| CN115608531A (en) | 2023-01-17 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510000 20 / F, A-1 business center, Shuidian Plaza, building 1, Guangshen Avenue West, Xintang Town, Zengcheng District, Guangzhou City, Guangdong Province Patentee after: Guangdong Construction Engineering Group Co.,Ltd. Country or region after: China Patentee after: Luoyang Judian metal hot working equipment Co.,Ltd. Address before: 510000 20 / F, A-1 business center, Shuidian Plaza, building 1, Guangshen Avenue West, Xintang Town, Zengcheng District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG NO. 2 HYDROPOWER ENGINEERING Co.,Ltd. Country or region before: China Patentee before: Luoyang Judian metal hot working equipment Co.,Ltd. |