CN106272092B - A kind of reinforcing bar derusting by sandblasting and burning optimization on line method - Google Patents

A kind of reinforcing bar derusting by sandblasting and burning optimization on line method Download PDF

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Publication number
CN106272092B
CN106272092B CN201610669381.1A CN201610669381A CN106272092B CN 106272092 B CN106272092 B CN 106272092B CN 201610669381 A CN201610669381 A CN 201610669381A CN 106272092 B CN106272092 B CN 106272092B
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Prior art keywords
sand
reinforcing bar
sandblasting
frame
cabin
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CN201610669381.1A
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CN106272092A (en
Inventor
郑仁礼
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Chongqing City Sheng Zhuang Building Materials LLC
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Chongqing City Sheng Zhuang Building Materials LLC
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086Descaling; Removing coating films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00Abrasive blasting machines or devices; Plants
    • B24C3/08Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/083Transfer or feeding devices; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B24C9/003Removing abrasive powder out of the blasting machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B24C9/006Treatment of used abrasive material
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34Methods of heating
    • C21D1/52Methods of heating with flames
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

A kind of reinforcing bar derusting by sandblasting and burning optimization on line method, reinforcing bar is placed on a conveyor first, reinforcing bar is placed in reinforcing bar delivery chute;Then start sand blasting unit, restart annealing device, make the fine and close protective oxide film of rebar surface covering;Its advantage is can to carry out derusting by sandblasting to reinforcing bar from all directions, and forms dense oxide protective layer by high temperature, improves derusting;Simultaneously internal and external environment can also be cleaned, frame from sandblasting out of my cabin side by the way that conveying carrier roller is not entered into inside sandblasting cabin yet, and frame and carrying roller can be avoided to sustain damage;Increase sand blasting unit, reduce the process length of each sand blasting unit, conveying carrier roller vacancy can be avoided long, ensure that reinforcing bar obtains the driving force of continuous conveying;After hierarchical carries out sandblasting, recycled again by cleaning after steel grit recovery, thin steel sand can be recycled directly;Such resultant effect can improve production efficiency, reduce cost, and strengthen labour protection measures.

Description

A kind of reinforcing bar derusting by sandblasting and burning optimization on line method
Technical field
The present invention relates to derusting technical field, particularly a kind of reinforcing bar derusting by sandblasting and burning optimization on line method.
Background technology
To make metal surface have good cleannes and roughness, it is necessary to carry out the pre- place such as derust to metal structure surface Reason.The principle of derusting by sandblasting and anticorrosive construction is to make sand grains obtain momentum using pressure caused by air compressor to be injected in Steel structure member surface, sand grains so that the iron rust for being attached to metal surface comes off, then again will with metal surface phase mutual friction Antifouling paint roller coating makes whole metal surface form coast of paint film in metal surface, so as to prevent the erosion of water and air from reaching Corrosion-resistant effect.
For the reinforcing bar of circle, existing sand blasting apparatus can only spray from upper and lower both direction to reinforcing bar Sand, the lateral direction of rebar surface can not just be looked after, so that derusting is insufficient.
In addition, brushing antifouling paint also easily wears after derusting, there is phenomenon of getting rusty repeatedly.
The content of the invention
The technical problems to be solved by the invention, which are to provide one kind, to carry out derusting by sandblasting to reinforcing bar in all directions Device, and high temperature generation oxidation film layer while can also clean internal and external environment and recycling, reach raising derusting rust-proofing, Cost is reduced, strengthens the purpose of labour protection.
In order to solve the above technical problems, the technical solution adopted in the present invention is at a kind of reinforcing bar derusting by sandblasting and online heat Reason method, it is characterised in that comprise the following steps:
First by reinforcing bar place on a conveyor, the conveying device include servomotor, reductor, chain-wheel mechanism, Driving chain, conveying carrier roller and reinforcing bar delivery chute;Wherein servomotor and reductor interconnect and are arranged on frame lower, subtract Fast machine connects driving chain by chain-wheel mechanism, and driving chain drives multigroup conveying carrier roller, and conveying carrier roller is arranged on by bearing In frame, the centre of conveying carrier roller is provided with two locating rods, and the distance between two locating rods are adapted to the diameter of reinforcing bar, are positioned Bar is close to conveying carrier roller but is not contacted with conveying carrier roller, and two locating rods form reinforcing bar delivery chute with conveying carrier roller;Reinforcing bar is put Put in reinforcing bar delivery chute.
Then sand blasting unit is started, the sand blasting unit includes sandblasting cabin and inhales sand device.
The sandblasting cabin is arranged between two pairs of frame pin of frame, the crossbeam of frame from the outside on sandblasting cabin both sides by, Conveying carrier roller and reinforcing bar delivery chute in frame close to sandblasting cabin but are not passed through sandblasting cabin;Reinforcing bar on reinforcing bar delivery chute passes through spray Sand cabin;Sandblasting gun rack and jet gun rack have been installed successively according to the outgoing direction that enters of reinforcing bar in sandblasting cabin, and lower section is provided with dedusting cabin With steel sand recovery capsule, sight glass is provided with the bulkhead in corresponding sandblasting cabin, the top in sandblasting cabin is provided with spray gun regulation connection Dynamic device;The sandblasting gun rack is round frame, and the center of circle of round frame passes through for reinforcing bar, and round frame is provided with three or more sandblastings Rifle, towards the center of circle but the misalignment center of circle, the distance in muzzle and the center of circle is 15-25cm, is set on the sand-blasting gun for the muzzle of sand-blasting gun There are sand-feeding tube and air inlet pipe, sand-feeding tube and air inlet pipe are connected with spray gun regulating linkage;The jet gun rack is circle Frame, the center of circle of round frame pass through for reinforcing bar, and round frame is provided with three or more jet guns, and the muzzle of jet gun is directed at the center of circle, The jet gun is provided with air inlet pipe, and air inlet pipe is connected with spray gun regulating linkage;Dedusting cabin side is provided with wind Machine, blower fan are connected by air draft sweep-up pipe with dedusting cabin side wall, and air draft sweep-up pipe and the side wall junction in dedusting cabin are exhaust outlet, Side wall in the range of exhaust outlet is mesh sides, and network interface diameter is less than sand ball diameter;Steel sand recovery capsule is installed in below dedusting cabin, Funnel, exported below provided with steel sand.
The suction sand device includes sand cylinder, sand ball efferent duct, air compressor machine and spray gun regulating linkage;The sand cylinder and sky Press is arranged on sandblasting side out of my cabin;One end connection sand cylinder of the sand ball efferent duct and close to sand cylinder bottom portion, sand ball efferent duct The other end is connected with spray gun regulating linkage;The air compressor machine directly connects spray gun regulating linkage.
Then annealing device is started, the annealing device includes heat-treating modules, and heat-treating modules are arranged on the two of frame To between frame pin, the crossbeam of frame is from the outside on heat-treating modules both sides by the way that transport roller and reinforcing bar delivery chute in frame connect Nearly heat-treating modules but it is not passed through heat-treating modules;Reinforcing bar on reinforcing bar delivery chute passes through heat-treating modules;Spray is equiped with heat-treating modules Firelock frame, the flame gun rack are round frame, and the center of circle of round frame passes through for reinforcing bar, and round frame is provided with three or more flames The distance in rifle, the muzzle alignment center of circle of flame gun, muzzle and the center of circle is 40-50cm, and the flame gun is connected with Gas Pipe;Will After reinforcing bar exports out of sandblasting cabin, then enter by reinforcing bar delivery chute in heat-treating modules and be heat-treated.Multiple flame guns are simultaneously Flame, the temperature at flame gun rack center is reached 800-1200 DEG C, the fine and close protective oxide film of rebar surface covering can be made.
Further, two sand blasting units are installed successively in frame, and reduce the process length of each sand blasting unit, Conveying carrier roller is set between two sand blasting units;It can so avoid conveying carrier roller vacancy long, it is continuous defeated to ensure that reinforcing bar obtains The driving force sent;First sand blasting unit carries out sandblasting using steel grit, and second sand blasting unit carries out sandblasting using thin steel sand; Steel sand outlet is directly connected to by steel sand recovery tube and sand cylinder in second sand blasting unit, is directly recycled.
The beneficial effects of the invention are as follows can from all directions to reinforcing bar carry out derusting by sandblasting, and pass through high temperature formed cause Close protective oxide film, improve derusting;Internal and external environment can also be cleaned simultaneously, and from sandblasting, side passes through conveying to frame out of my cabin Carrying roller is not entered into inside sandblasting cabin yet, and frame and carrying roller can be avoided to sustain damage;Increase sand blasting unit, reduce each sandblasting The process length of device, conveying carrier roller vacancy can be avoided long, ensure that reinforcing bar obtains the driving force of continuous conveying;It is layered grading After row sandblasting, recycled again by cleaning after steel grit recovery, thin steel sand can be recycled directly;Such resultant effect can To improve production efficiency, cost is reduced, and strengthen labour protection measures.
Brief description of the drawings
Fig. 1 is the overall structure diagram of reinforcing bar sand blasting apparatus of the present invention.
Fig. 2 is the overlooking the structure diagram of reinforcing bar sand blasting apparatus of the present invention.
Fig. 3 is the structural representation that AA tangent lines are sandblasting gun rack in Fig. 1.
Fig. 4 is the structural representation that BB tangent lines are jet gun rack in Fig. 1.
Fig. 5 is that CC tangent lines are comprising the structural representation for inhaling sand device in Fig. 1.
Fig. 6 is the structural representation that DD tangent lines are flame gun rack in Fig. 1.
In figure:1. sand device, 5. servomotors, 6. chain-wheel mechanisms, 7. are inhaled in frame, 2. conveying devices, 3. sand blasting units, 4. Driving chain, 8. conveying carrier rollers, 9. sandblasting cabins, 10. sandblasting gun racks, 11. jet gun racks, 12. dedusting cabins, 13. steel sand recovery capsules, 14. sight glass, 15. spray gun regulating linkages, 16. sand-blasting guns, 17. sand-feeding tubes, 18. air inlet pipe, 19. jet guns, 20. wind Machine, 21. air draft sweep-up pipes, 22. steel sand recovery tubes, 23. sand cylinders, 24. sand ball efferent ducts, 25. air compressor machines, 26. reinforcing bar delivery chutes, 27. steel sand outlet, 28. heat-treating modules, 29. flame gun racks, 30. flame guns, 31. Gas Pipes, 32. annealing devices.
Embodiment
With reference to embodiment, the invention will be further described, and following examples are intended to illustrate invention rather than to this The further restriction of invention, should not be limited the scope of the invention with this.
Embodiment 1.
As illustrated, carry out reinforcing bar derusting by sandblasting burning optimization on line.
Reinforcing bar is placed in conveying device 2 first.The conveying device 2 includes servomotor 5, reductor, chain turbine Structure 6, driving chain 7, conveying carrier roller 8 and reinforcing bar delivery chute 26;Wherein servomotor 5 and reductor is interconnected and be arranged on The bottom of frame 1, reductor is connected into driving chain 7 by chain-wheel mechanism 6, driving chain 7 is installed in the side axis of conveying carrier roller 8 On, driving chain 7 is driven multigroup conveying carrier roller 8, conveying carrier roller 8 is arranged in frame 1 by bearing, in conveying carrier roller 8 Centre sets two locating rods, and the distance between two locating rods are adapted to the diameter of reinforcing bar, locating rod close to conveying carrier roller 8 but Do not contacted with conveying carrier roller 8, two locating rods form reinforcing bar delivery chute 26 with conveying carrier roller 8;Reinforcing bar is placed on reinforcing bar conveying In groove 26.
Then sand blasting unit 3 is started, the sand blasting unit 3 includes sandblasting cabin 9 and inhales sand device 4.
The sand blasting unit 3 includes sandblasting cabin 9, and the sandblasting cabin 9 is arranged between two pairs of frame pin of frame 1, frame 1 Crossbeam is from the outside on the both sides of sandblasting cabin 9 by the way that conveying carrier roller 8 and reinforcing bar delivery chute 26 in frame 1 close to sandblasting cabin 9 but are not worn Cross sandblasting cabin 9;Reinforcing bar on reinforcing bar delivery chute 26 passes through sandblasting cabin 9;Installed successively according to the outgoing direction that enters of reinforcing bar in sandblasting cabin 9 Sandblasting gun rack 10 and jet gun rack 11, lower section are provided with dedusting cabin 12 and steel sand recovery capsule 13, the cabin in corresponding sandblasting cabin 9 Sight glass 14 is provided with wall, the top in sandblasting cabin 9 is provided with spray gun regulating linkage 15;The sandblasting gun rack 10 is circle Frame, the center of circle of round frame pass through for reinforcing bar, and round frame is provided with three or more sand-blasting guns 16, the muzzle direction circle of sand-blasting gun 16 The distance in the heart but the misalignment center of circle, muzzle and the center of circle is 15-25cm, and the sand-blasting gun 16 is provided with sand-feeding tube 17 and air inlet pipe 18, sand-feeding tube 17 and air inlet pipe 18 are connected with spray gun regulating linkage 15;The jet gun rack 11 is round frame, circular The center of circle of frame passes through for reinforcing bar, and round frame is provided with three or more jet guns 19, and the muzzle alignment center of circle of jet gun 19 is described Jet gun 19 is provided with air inlet pipe 18, and air inlet pipe 18 is connected with spray gun regulating linkage 15;Set on the side of dedusting cabin 9 There is blower fan 20, blower fan 20 is connected by air draft sweep-up pipe 21 with the side wall of dedusting cabin 12, air draft sweep-up pipe 21 and the side in dedusting cabin 12 Wall junction is exhaust outlet, and the side wall in the range of exhaust outlet is mesh sides, and network interface diameter is less than sand ball diameter;Steel sand recovery capsule 13 are installed in the lower section of dedusting cabin 12, funnel, below provided with steel sand outlet 27.
The suction sand device 4 includes sand cylinder 23, sand ball efferent duct 24, air compressor machine 25 and spray gun regulating linkage 15;Institute State sand cylinder 23 and air compressor machine 25 is arranged on the outside of sandblasting cabin 9;One end connection sand cylinder 23 of the sand ball efferent duct 24 and close to sand Cylinder bottom portion, the other end of sand ball efferent duct 24 are connected with spray gun regulating linkage 15;The air compressor machine 25 directly connects spray Rifle regulating linkage 15.
Then annealing device 32 is started, the annealing device 32 includes heat-treating modules 28, and heat-treating modules 28 are arranged on Between two pairs of frame pin of frame 1, the crossbeam of frame 1 passes through the transport roller 8 in frame 1 from the outside on the both sides of heat-treating modules 28 Close to heat-treating modules 32 but heat-treating modules 32 are not passed through with reinforcing bar delivery chute 26;Reinforcing bar on reinforcing bar delivery chute 26 passes through heat treatment Cabin 32;Flame gun frame 29 is equiped with heat-treating modules 32, the flame gun rack 29 is round frame, and the center of circle of round frame is worn for reinforcing bar Cross, round frame is provided with three or more flame guns 30, the muzzle alignment center of circle of flame gun 30, and the distance in muzzle and the center of circle is 40-50cm, the flame gun 30 are connected with Gas Pipe 31;After reinforcing bar is exported out of sandblasting cabin 9, then by reinforcing bar delivery chute It is heat-treated in 26 entrance heat-treating modules 32.Multiple flame guns 30 while flame, reach the temperature at the center of flame gun rack 29 800-1200 DEG C, the fine and close protective oxide film of rebar surface covering can be made.So, the reinforcing bar by derusting by sandblasting is from work Between out before just obtained the protection of dense oxidation film, effectively increase the steel bar quality after derusting by sandblasting.
Embodiment 2.
As illustrated, on the basis of embodiment 1, two sand blasting units 3 are installed successively in frame, and reduce each spray The process length of sand device 3, conveying carrier roller 8 is set between two sand blasting units 3;First sand blasting unit uses steel grit, Second sand blasting unit uses thin steel sand;Steel sand outlet 27 is passed through into steel sand recovery tube 22 and sand cylinder in second sand blasting unit 23 are directly connected to.
It can so avoid conveying carrier roller vacancy long, ensure that reinforcing bar obtains the driving force of continuous conveying;First during use Individual sand blasting unit carries out sandblasting using steel grit, and second sand blasting unit carries out sandblasting using thin steel sand;Filled in second sandblasting Put middle steel sand outlet to be directly connected to by steel sand recovery tube and sand cylinder, can directly reclaim thin steel sand and recycle;First spray Steel sand after cleaning by recycling in sand device.

Claims (2)

1. a kind of reinforcing bar derusting by sandblasting and burning optimization on line method, it is characterised in that comprise the following steps:
Reinforcing bar is placed on a conveyor first, the conveying device(2)Including servomotor(5), reductor, chain-wheel mechanism (6), driving chain(7), conveying carrier roller(8)With reinforcing bar delivery chute(26);Wherein servomotor(5)Interconnected simultaneously with reductor Installed in frame(1)Bottom, reductor pass through chain-wheel mechanism(6)Connect driving chain(7), driving chain(7)Drive multigroup defeated Send carrying roller(8), conveying carrier roller(8)Frame is arranged on by bearing(1)On, conveying carrier roller(8)Centre be provided with two locating rods, The distance between two locating rods are adapted to the diameter of reinforcing bar, and locating rod is close to conveying carrier roller(8)But not with conveying carrier roller(8)Connect Touch, two locating rods and conveying carrier roller(8)Form reinforcing bar delivery chute(26);Reinforcing bar is placed on reinforcing bar delivery chute(26)It is interior;
Then sand blasting unit is started(3), the sand blasting unit(3)Including sandblasting cabin(9)With suction sand device(4);
The sandblasting cabin(9)Installed in frame(1)Two pairs of frame pin between, frame(1)Crossbeam from sandblasting cabin(9)Outside both sides Side passes through frame(1)On conveying carrier roller(8)With reinforcing bar delivery chute(26)Close to sandblasting cabin(9)But it is not passed through sandblasting cabin(9); Reinforcing bar delivery chute(26)On reinforcing bar pass through sandblasting cabin(9);Sandblasting cabin(9)It is interior to have installed spray successively according to the outgoing direction that enters of reinforcing bar Sand gun rack(10)With jet gun rack(11), in sandblasting cabin(9)Interior sandblasting gun rack(10)With jet gun rack(11)Lower section be provided with Dedusting cabin(12)With steel sand recovery capsule(13), corresponding sandblasting cabin(9)Bulkhead on be provided with sight glass(14), sandblasting cabin (9)Top be provided with spray gun regulating linkage(15);The sandblasting gun rack(10)For round frame, the center of circle of round frame supplies reinforcing bar Pass through, round frame is provided with three or more sand-blasting guns(16), sand-blasting gun(16)Muzzle towards the center of circle but the misalignment center of circle, rifle Mouthful and the distance in the center of circle be 15-25cm, the sand-blasting gun(16)It is provided with sand-feeding tube(17)And air inlet pipe(18), sand-feeding tube(17) And air inlet pipe(18)With spray gun regulating linkage(15)It is connected;The jet gun rack(11)For round frame, round frame The center of circle passes through for reinforcing bar, and round frame is provided with three or more jet guns(19), jet gun(19)Muzzle alignment the center of circle, it is described Jet gun(19)It is provided with air inlet pipe(18), air inlet pipe(18)With spray gun regulating linkage(15)It is connected;The dedusting cabin (12)Side is provided with blower fan(20), blower fan(20)Pass through air draft sweep-up pipe(21)With dedusting cabin(12)Side wall is connected, and air draft is inhaled Dirt pipe(21)With dedusting cabin(12)Side wall junction be exhaust outlet, the side wall in the range of exhaust outlet is mesh sides, and network interface is straight Footpath is less than sand ball diameter;Steel sand recovery capsule(13)It is installed in dedusting cabin(12)Lower section, funnel, exported below provided with steel sand (27);
The suction sand device(4)Including sand cylinder(23), sand ball efferent duct(24), air compressor machine(25)With spray gun regulating linkage (15);The sand cylinder(23)And air compressor machine(25)Installed in sandblasting cabin(9)Outside;The sand ball efferent duct(24)One end connection Sand cylinder(23)And close to sand cylinder bottom portion, sand ball efferent duct(24)The other end and spray gun regulating linkage(15)It is connected;Institute State air compressor machine(25)Directly connect spray gun regulating linkage(15);
Then annealing device is started(32), the annealing device(32)Including heat-treating modules(28), heat-treating modules(28)Peace Mounted in frame(1)Two pairs of frame pin between, frame(1)Crossbeam from heat-treating modules(28)The outside on both sides passes through frame(1)On Transport roller(8)With reinforcing bar delivery chute(26)Close to heat-treating modules(28)But it is not passed through heat-treating modules(28);Reinforcing bar delivery chute (26)On reinforcing bar pass through heat-treating modules(28);Heat-treating modules(28)Inside it is equiped with flame gun frame(29), the flame gun rack (29)For round frame, the center of circle of round frame passes through for reinforcing bar, and round frame is provided with three or more flame guns(30), flame gun (30)The muzzle alignment center of circle, the distance in muzzle and the center of circle is 40-50cm, the flame gun(30)With Gas Pipe(31)It is connected It is logical;By reinforcing bar from sandblasting cabin(9)After interior output, then by reinforcing bar delivery chute(26)Into heat-treating modules(28)It is interior to carry out hot place Reason;Multiple flame guns(30)Flame simultaneously, makes flame gun rack(29)The temperature at center reaches 800-1200 DEG C, covers rebar surface Cover fine and close protective oxide film.
2. reinforcing bar derusting by sandblasting according to claim 1 and burning optimization on line method, it is characterised in that frame(1)On successively Two sand blasting units are installed(3), and reduce each sand blasting unit(3)Process length, in two sand blasting units(3)Between set Conveying carrier roller(8);First sand blasting unit carries out sandblasting using steel grit, and second sand blasting unit is sprayed using thin steel sand Sand;Steel sand exports in second sand blasting unit(27)Pass through steel sand recovery tube(22)With sand cylinder(23)It is directly connected to.
CN201610669381.1A 2016-08-16 2016-08-16 A kind of reinforcing bar derusting by sandblasting and burning optimization on line method Active CN106272092B (en)

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CN109605228B (en) * 2018-12-15 2020-03-27 广信铝业股份有限公司 Continuity aluminum alloy tubular product sand blasting unit
CN111020168B (en) * 2019-12-30 2021-08-24 湖北立晋钢铁集团有限公司 Feeding device of deformed steel bar quenching device with uniform quenching

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JP2000248313A (en) * 1999-02-26 2000-09-12 Daido Steel Co Ltd Spheroidizing heat treatment of steel slab
JP2000256744A (en) * 1999-03-04 2000-09-19 Hyundai Boteko Co Heat treatment of wear resistant and corrosion resistant alloy steel long shaft member and apparatus therefor
CN202053183U (en) * 2011-04-28 2011-11-30 江西金鑫发铝业有限公司 Device for manufacturing heat insulation aluminium profiles by ball blast and sand blast surface treatment technology
CN102952930A (en) * 2011-08-24 2013-03-06 湘潭高耐合金制造有限公司 Heat treatment process and heat treatment case of alloy steel shaft mounted brake disc
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