CN202985356U - Cleaning gun for inner wall of steel pipe - Google Patents

Cleaning gun for inner wall of steel pipe Download PDF

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Publication number
CN202985356U
CN202985356U CN 201320007226 CN201320007226U CN202985356U CN 202985356 U CN202985356 U CN 202985356U CN 201320007226 CN201320007226 CN 201320007226 CN 201320007226 U CN201320007226 U CN 201320007226U CN 202985356 U CN202985356 U CN 202985356U
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CN
China
Prior art keywords
pipe
sand
steel pipe
supply pipe
wall
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Withdrawn - After Issue
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CN 201320007226
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Chinese (zh)
Inventor
任小增
祝爽
黄威
王锐
张正学
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HUNAN NONFERROUS HEAVY MACHINERY CO Ltd
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HUNAN NONFERROUS HEAVY MACHINERY CO Ltd
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Priority to CN 201320007226 priority Critical patent/CN202985356U/en
Application granted granted Critical
Publication of CN202985356U publication Critical patent/CN202985356U/en
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Abstract

The utility model discloses a cleaning gun for an inner wall of a steel pipe. The cleaning gun comprises a sand supply pipe and a high-pressure water supply pipe arranged under the sand supply pipe, wherein the tail end of the sand supply pipe is connected with a sand divider, the tail end of the high-pressure water supply pipe is connected with a spray head, the spray head comprises a plurality of independent spray units, and each spray unit is communicated with the sand divider. The sand supply pipe and the high-pressure water supply pipe can respectively convey mortar and high-pressure water to the spray units, and the mortar and the high-pressure water are mixed in nozzles of the spray units to form an abrasive jet flow which moves at a high speed so as to form a linear jet cross section, so that roll scale on the inner wall of the steel pipe can be continuously and effectively cleaned in an environmental-friendly manner due to the impacting and the brushing of the abrasive jet flow which moves at high speed. The sand supply pipe and the high-pressure water supply pipe are fixed by a pipe clamp component, support wheels of the pipe clamp component contact the inner wall of the steel pipe so as to support a whole descaling gun, and the rolling friction is formed between the descaling gun and the inner wall of the steel pipe, so that the motion resistance can be reduced, and the descaling gun and the steel pipe can be guaranteed to be free from blockage when moving relatively. Furthermore, the height of each support wheel can be adjusted, so that the cleaning gun is applicable to steel pipes which are to be cleaned and have different diameters.

Description

The steel pipe inner wall cleaning device
Technical field
The utility model relates to steel pipe internal-surface technique of scale removal field, particularly a kind of steel pipe inner wall de-scaling rifle.
Background technology
Steel pipe is in hot rolling or heat treatment process, the ferro element on top layer and airborne oxygen and water vapour generation chemical reaction, can form on the surface the fine and close covering that one deck is comprised of metal oxide, be commonly called as " firecoat ", the existence of this firecoat is processed the further processing of steel pipe and is caused significant impact, as the drawing at steel pipe, during reaming is processed, easily firecoat is pressed into metal surface, cause surface quality problems, in addition, hard firecoat can scratch plug, has accelerated the wearing and tearing of drawbench or punch.Process for the antirust, anti-corrosive of steel pipe before reality is used simultaneously and brought difficulty.Based on this problem, the steel pipe after hot rolling and heat treatment all will thoroughly be removed its surperficial firecoat before entering aftertreatment technology.
Steel tube surface de-scaling is both at home and abroad at present adopted traditional pickling, shot-peening or ball blast more, processing strips off the skin.These traditional processing methods all exist problems: the spent acid waste gas that one, produces during pickling is very large to environment and direct labor's physical effects, its production environment is abominable, spent acid waste gas directly affects ambient air, water, soil, and the processing cost of spent acid is very high; Two, shot-peening or ball blast produce a large amount of dust in process of production, cause the working environment of workshop equally very abominable, and the surface also causes steel surface to form a lot of pockmarks when can't clean out fully, directly have influence on surface quality of steel; Three, stripping off the skin is to utilize many group abrasive machines that the steel surface grinding is processed, and the method produces a large amount of dust aborning equally, and noise is large, and production environment is abominable.In addition, be subjected to structure and spatial constraints, shot-peening, ball blast, strip off the skin and basically can't process for the inwall de-scaling of the steel pipe of minor diameter.
By consulting patent documentation, researcher also proposes many new descaling methods both at home and abroad: external as Japanese JP06108277A discloses the descaling process that adopts spray acid and brush roll to be used in combination on the continuous cold rolling line, Japan JP57142710A, JP59097711A, and Canadian US20080108281(A1), US20080182486(A1) a series for the treatment of technologies for the surface of steel plate firecoat are disclosed; Domestic as disclosing a kind of high pressure water shot blasting descaling method for line, bar of Hangzhou Iron ﹠ Steel Group application in 2005, metal wire rod or the bars by grinding Descaling by water jet method and apparatus of Hunan Nonferrous Heavy Machinery Co., Ltd's application in 2010 on the Chinese patent communique.Although the abradant jet technology is widely used, a kind of technology and equipment of the good processing that is used for the steel pipe inner wall de-scaling is not proposed also at present in industry.
The utility model content
The purpose of this utility model be to provide a kind of continuously, the steel pipe inner wall cleaning device of efficient, environmental protection.
This steel pipe inner wall cleaning device that the utility model provides, it comprises for sand tube and the high service pipe that is positioned at its below, supplies the end of sandpipe to connect sand separator, and the end of high service pipe connects injector head, injector head comprises some independently injection units, and each injection unit is communicated with sand separator.
Pipe clamp assembly is fixed together more by organizing independently for described confession sandpipe and feed pipe, pipe clamp assembly comprises two pipe clamps that match up and down, the both sides of pipe clamp are fastening by adjusting bolt and adjusting nut, and there is the draw-in groove of U-shaped the lower end of adjusting bolt, and support wheel is arranged in draw-in groove.
Described sand separator comprises a supervisor who is connected with described confession sand tube, and supervisor's tail end is divided into two arms, and every arm connects a shunting cone, on each shunting cone, many shunt pipes is arranged.
Described injector head also comprises the piece that catchments, injection unit, guide post, guide cone; Described injection unit has a plurality of, their minute two row's interlaced arrangement, there is the connection water hole at catchment on piece corresponding each injection unit place, each injection unit comprises into sand joint, nozzle, sand hole and water hole are arranged on nozzle, sand hole with advance the sand joint and be communicated with, the water hole is communicated with the water hole that is connected in the piece that catchments, nozzle is connected and fixed by clamp nut with the water hole that is connected of the piece that catchments, and advances the sand joint and is connected with flexible pipe with described shunt pipe; The inner of guide post is connected with the outer face of the piece that catchments, and guide cone directly is enclosed within on guide post, and by locking nut, guide cone is located on guide post.
Be useful on the flooding nozzle that washes away steel pipe de-scaling residue on described high service pipe.
pipe clamp assembly will be fixed together for sand tube and high service pipe the utility model more by organizing independently, provide mortar with the slag stock pump to the confession sandpipe, mortar is transported to each injection unit independently on injector head uniformly by sand separator, high-pressure pump provides water under high pressure to the high service pipe, the water under high pressure that the piece that catchments of injector head is carried the high service pipe is distributed to each independently injection unit uniformly, water under high pressure and mortar mix in injection unit, form the abradant jet of high-speed motion, quantity by the configuration nozzle, can form wire and spray the cross section, rely on the strike of high speed abradant jet and wash away, just can realize continuously, efficiently, the removing steel pipe inner wall firecoat of environmental protection.Support wheel by pipe clamp assembly contacts to support whole de-scaling rifle with steel pipe inner wall, be between de-scaling rifle and steel pipe inner wall rolling friction to reduce the resistance of motion, and is without hindrance when guaranteeing de-scaling rifle and steel pipe relative motion.Nut on adjusting bolt is used for regulating the height of support wheel, to adapt to the pipe diameter size of different steel pipes to be cleaned.So it is high to the utlity model has de-scaling efficient, environmentally safe, good work environment, cost low (with water and mortar as raw material, and recyclable), treatable diameter of steel tube wide ranges also can well be completed de-scaling work to the steel pipe of minor diameter.And applied range can be used for the field that the various needs such as steel pipe inner wall de-scaling, rust cleaning carry out inner wall washing.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of the present utility model.
Fig. 2 is the A-A cross-sectional schematic in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of sand separator in Fig. 1.
Fig. 4 is the structure for amplifying schematic diagram of injector head in Fig. 1.
Fig. 5 is the elevational schematic view of Fig. 4.
Fig. 6 is the injection schematic cross-section that Fig. 5 forms.
Fig. 7 is the utility model and a kind of relative motion mode schematic diagram for the treatment of the de-scaling steel pipe.
Fig. 8 is the utility model and the another kind of relative motion mode schematic diagram for the treatment of the de-scaling steel pipe.
The specific embodiment
Preferred embodiment, as shown in Figure 1, steel pipe inner wall cleaning device of the present utility model is used for the steel pipe inner wall de-scaling, it comprises as Fig. 1 to shown in Figure 5, this steel pipe inner wall cleaning device that the utility model provides, comprise high service pipe 1, supply sand tube 2, be positioned at the top of high service pipe 1 for sand tube 2, by pipe clamp assembly 3, feed pipe 1, confession sandpipe 2 are fixed together, pipe clamp assembly 3 comprises two pipe clamps 8 that match up and down, the both sides of pipe clamp 8 are fastening by adjusting bolt 5 and adjusting nut 7, and there is the draw-in groove 9 of U-shaped the lower end of adjusting bolt 5, and support wheel 6 is arranged in draw-in groove 9.Adjusting nut 7 has four, each two up and down, support wheel 6 is fixed on pipe clamp 8.End for sand tube 2 connects a tree-shaped sand separator 19, and the end of high service pipe 1 connects injector head 20.Injector head 20 comprises the piece 13 that catchments, guide post 16 and guide cone 17, a plurality of independently injection unit 14.There is the connection water hole at catchment on piece 13 corresponding each injection unit 14 places, each injection unit 14 comprises into sand joint 141, nozzle 142, sand hole and water hole are arranged on nozzle 142, sand hole with advance sand joint 141 and be communicated with, the water hole is communicated with the water hole that is connected in the piece 13 of catchmenting, and nozzle 142 is connected and fixed by clamp nut 15 with the water hole that is connected of the piece 13 that catchments; The inner of guide post 16 is connected with the outer face of the piece 13 that catchments, and guide cone 17 directly is enclosed within on guide post 16, and by locking nut 18, guide cone 17 is located on guide post 16.When guide cone 17 can prevent that the de-scaling rifle from entering steel duct, steel pipe clashes into injector head 20, plays the effect of protection injector head 20.Sand separator 19 comprises a supervisor 21, and supervisor 21 is divided into two arms 22, and every arm 22 is connected with a shunting cone 23, and each shunting cone 23 is provided with many shunt pipes 24.Shunt pipe 24 advances sand joint 141 by what flexible pipe 12 was connected to each injection unit 14.Be useful on the flooding nozzle 4 that washes away steel pipe de-scaling residue on high service pipe 1.
Operation principle is as follows: to for pumping into mortar in sandpipe 2, high-pressure pump pumps into water under high pressure in high service pipe 1 with the slag stock pump, and sand separator 19 will be transported to uniformly for the mortar that sand tube 2 provides each injection unit 14 independently of injector head 20.The water under high pressure that the piece 13 that catchments is carried high service pipe 1 is distributed to each independently injection unit 14 uniformly.Water under high pressure and mortar be in the interior mixing of injection unit 14, forms the abradant jet of high-speed motion, by the quantity of configuration nozzle 14, can form wire and spray the cross section, as shown in Figure 6, the inner surface of steel pipe washed away strike, reaches the purpose of thorough removing firecoat.
The relative motion mode of de-scaling rifle and steel pipe has two kinds: as shown in Figure 7 a kind of, and keep the de-scaling rifle to maintain static, drive by roller-way, make steel pipe on one side around self axis rotation, an edge axis direction advances, and the de-scaling rifle enters steel duct.Provide water under high pressure in the high service pipe, to for sandpipe 2 conveyer mortars, can produce wire and spray the cross section, as Fig. 5.Steel pipe rotary advances in process, adjust the distance that moves axially that suitable kinematic parameter guarantees that steel pipe rotary produced during one week and be not more than the length of spraying the cross section, the cleaning fully of inwall is realized in all places of inswept steel pipe inner wall, injection cross section that injector head is produced.After de-scaling was completed, the de-scaling rifle withdrawed from steel duct.Another kind drives by roller-way as Fig. 8, keeps the de-scaling rifle to advance along the steel pipe axial direction, and steel pipe only around self axis rotation, makes the de-scaling rifle enter steel duct.Provide water under high pressure to high-voltage tube, to for the sandpipe conveyer mortar, can produce wire and spray the cross section, as Fig. 5.Adjust suitable kinematic parameter, guarantee that the distance that moves axially of de-scaling rifle when steel pipe rotary one is all is not more than the length of spraying the cross section, the cleaning fully of inwall is realized in all places of inswept steel pipe inner wall, injection cross section that injector head is produced.After de-scaling was completed, the de-scaling rifle withdrawed from steel duct.

Claims (5)

1. steel pipe inner wall cleaning device, it is characterized in that: it comprises for sand tube and the high service pipe that is positioned at its below, supplies the end of sandpipe to connect sand separator, and the end of high service pipe connects injector head, injector head comprises some independently injection units, and each injection unit is communicated with sand separator.
2. steel pipe inner wall cleaning device as claimed in claim 1, it is characterized in that: pipe clamp assembly is fixed together more by organizing independently for described confession sandpipe and feed pipe, pipe clamp assembly comprises two pipe clamps that match up and down, the both sides of pipe clamp are fastening by adjusting bolt and adjusting nut, there is the draw-in groove of U-shaped the lower end of adjusting bolt, and support wheel is arranged in draw-in groove.
3. steel pipe inner wall cleaning device as claimed in claim 1, it is characterized in that: described sand separator comprises a supervisor who is connected with described confession sand tube, supervisor's tail end is divided into two arms, and every arm connects a shunting cone, on each shunting cone, many shunt pipes is arranged.
4. steel pipe inner wall cleaning device as claimed in claim 3, it is characterized in that: described injector head also comprises the piece that catchments, injection unit, guide post, guide cone; Described injection unit has a plurality of, their minute two row's interlaced arrangement, there is the connection water hole at catchment on piece corresponding each injection unit place, each injection unit comprises into sand joint, nozzle, sand hole and water hole are arranged on nozzle, sand hole with advance the sand joint and be communicated with, the water hole is communicated with the water hole that is connected in the piece that catchments, nozzle is connected and fixed by clamp nut with the water hole that is connected of the piece that catchments, and advances the sand joint and is connected with flexible pipe with described shunt pipe; The inner of guide post is connected with the outer face of the piece that catchments, and guide cone directly is enclosed within on guide post, and by locking nut, guide cone is located on guide post.
5. steel pipe inner wall cleaning device as claimed in claim 1, is characterized in that: be useful on the flooding nozzle that washes away steel pipe de-scaling residue on described high service pipe.
CN 201320007226 2013-01-08 2013-01-08 Cleaning gun for inner wall of steel pipe Withdrawn - After Issue CN202985356U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320007226 CN202985356U (en) 2013-01-08 2013-01-08 Cleaning gun for inner wall of steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320007226 CN202985356U (en) 2013-01-08 2013-01-08 Cleaning gun for inner wall of steel pipe

Publications (1)

Publication Number Publication Date
CN202985356U true CN202985356U (en) 2013-06-12

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Application Number Title Priority Date Filing Date
CN 201320007226 Withdrawn - After Issue CN202985356U (en) 2013-01-08 2013-01-08 Cleaning gun for inner wall of steel pipe

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CN (1) CN202985356U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100982A (en) * 2013-01-08 2013-05-15 湖南有色重型机器有限责任公司 Steel pipe inner wall washing gun
CN104985534A (en) * 2015-05-28 2015-10-21 重庆钢铁(集团)有限责任公司 Small-bore steel pipe inner wall surface defect batch processing method
CN110479705A (en) * 2018-05-15 2019-11-22 天津市顺丰源钢管制造有限公司 A kind of list edge blowing-down device for hot-dip galvanized steel pipe
CN114248206A (en) * 2021-12-24 2022-03-29 杭州浙达精益机电技术股份有限公司 Cold steel pipe descaling device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100982A (en) * 2013-01-08 2013-05-15 湖南有色重型机器有限责任公司 Steel pipe inner wall washing gun
CN103100982B (en) * 2013-01-08 2015-06-17 湖南有色重型机器有限责任公司 Steel pipe inner wall washing gun
CN104985534A (en) * 2015-05-28 2015-10-21 重庆钢铁(集团)有限责任公司 Small-bore steel pipe inner wall surface defect batch processing method
CN104985534B (en) * 2015-05-28 2018-05-15 重庆钢铁(集团)有限责任公司 A kind of caliber pipe inwall surface defect batch processing method
CN110479705A (en) * 2018-05-15 2019-11-22 天津市顺丰源钢管制造有限公司 A kind of list edge blowing-down device for hot-dip galvanized steel pipe
CN114248206A (en) * 2021-12-24 2022-03-29 杭州浙达精益机电技术股份有限公司 Cold steel pipe descaling device
CN114248206B (en) * 2021-12-24 2022-11-29 杭州浙达精益机电技术股份有限公司 Cold steel pipe descaling device

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130612

Effective date of abandoning: 20150617

RGAV Abandon patent right to avoid regrant