CN104032112B - A kind of multi-functional heat treatment system of steel pipe - Google Patents
A kind of multi-functional heat treatment system of steel pipe Download PDFInfo
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- CN104032112B CN104032112B CN201410269347.6A CN201410269347A CN104032112B CN 104032112 B CN104032112 B CN 104032112B CN 201410269347 A CN201410269347 A CN 201410269347A CN 104032112 B CN104032112 B CN 104032112B
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Abstract
A multi-functional heat treatment system for steel pipe, comprises spray apparatus and low-temperature resistance furnace apparatus in six groups of roller-ways, Medium frequency induction furnace apparatus, high temperature resistance furnace apparatus, ultra-fast cooling device, outer pouring; Six groups of roller-ways are arranged in order form by spraying roller-way group and blanking roller-way group in charging roller group, Frequency Induction Heating roller-way group, air cooling roller-way group, ultrafast cold roller-way group, outer pouring; Medium frequency induction furnace apparatus is arranged between adjacent two roller-ways of Frequency Induction Heating roller-way group; High temperature resistance furnace apparatus is arranged on air cooling roller-way group side; Ultrafast cold roller-way group is arranged on ultra-fast cooling device inside; In outer pouring, spray apparatus is arranged on spray roller-way group side in outer pouring; Low-temperature resistance furnace apparatus is arranged on blanking roller-way group side.System whole piece processing line of the present invention is compact to design, easy and simple to handle, can according to processing requirement, combination selection required equipment, meets the multiple thermal treatment process requirement of steel pipe.
Description
Technical field
The invention belongs to Steel Pipe Heat processing technology field, particularly a kind of multi-functional heat treatment system of steel pipe.
Background technology
Conventional steel thermal treatment type of heating is based on gas heating and resistive heating, and energy consumption is large, because heat-up rate is slow in heat-processed, working efficiency is not high, heat-up time is long, and in heat-processed, steel tube surface easily produces thicker iron scale, reduces steel tube surface quality.Steel pipe is longer for heat-up time, and steel pipe microtexture is difficult to obtain refinement, and improved performance is restricted.From the serialization of heat treatment process, automatization and heat-treated steel pipe surface quality, the good and angle that linearity is high is considered, adopting the mode of Frequency Induction Heating to heat-treat steel pipe is best selection, it is fast that induction heating has rate of heating, energy-conserving and environment-protective, level of automation are high, heat-processed is easy to control and the feature such as manufacturing cost, but also there is soaking time and be restricted in this kind of type of heating, the problem of the poor temperature uniformity of steel pipe integral.
In the production technique of middle pipe with small pipe diameter steel pipe, generally only need hot rolling or weld the large diameter steel pipe of several specification, by reheating backward pull tube reducing operation, carrying out the medium-small diameter steel pipe of production plurality of specifications, to expand the specification limit of product, enhancing productivity; But reheat operation through middle, will there is austenite phase transformation in body tissue, tension reducing rolls rear temperature and is greater than Ar again
3(generally at about 850 DEG C), phase transformation thereafter, if do not controlled, easily causes steel duct to organize thick, and performance reduces, and needs to adopt suitable control refrigeration technique to reheat the phase transformation after rolling to it and controls, to improve the tissue that heat subtracts rear steel pipe.At present, the air cooling way that the many employings of the steel pipe after tube reducing rolls are carried out on cold bed, cooling power is limited, to the improvement limitation of structure and properties.
Summary of the invention
For the problems referred to above that existing Steel Pipe Heat treatment technology exists, the invention provides a kind of multi-functional heat treatment system of steel pipe, spray water in intermediate frequency furnace, high temperature resistance furnace, ultra-fast cooling device, outer pouring quenching device and low-temperature resistance stove and roller-way are combined into a total system, whole piece processing line is compact to design, easy and simple to handle, can according to processing requirement, combination selection required equipment, meets the multiple thermal treatment process requirement of steel pipe.
The multi-functional heat treatment system of steel pipe of the present invention comprises spray apparatus and low-temperature resistance furnace apparatus in six groups of roller-ways, Medium frequency induction furnace apparatus, high temperature resistance furnace apparatus, ultra-fast cooling device, outer pouring; Six groups of roller-ways are arranged in order form by spraying roller-way group and blanking roller-way group in charging roller group, Frequency Induction Heating roller-way group, air cooling roller-way group, ultrafast cold roller-way group, outer pouring; Medium frequency induction furnace apparatus is arranged between adjacent two roller-ways of Frequency Induction Heating roller-way group; High temperature resistance furnace apparatus is arranged on air cooling roller-way group side; Ultrafast cold roller-way group is arranged on ultra-fast cooling device inside; In outer pouring, spray apparatus is arranged on spray roller-way group side in outer pouring; Low-temperature resistance furnace apparatus is arranged on blanking roller-way group side.
At least two cover feeding devices are provided with between the roller-way of above-mentioned charging roller group; Feeding device comprises loading supporting plate, material loading hydro-cylinder and material loading guide pillar; The end face of loading supporting plate is inclined-plane, and the low side of its end face is provided with material loading baffle plate; Bottom surface and the material loading hydro-cylinder of loading supporting plate are assembled together, and are fixed with material loading guide pillar; The side of each feeding device is provided with feeding skid, and feeding skid is positioned at the high-end of each loading supporting plate end face.
At least two cover blanking devices are provided with between the roller-way of above-mentioned blanking roller-way group; Blanking device comprises blanking support plate, blanking hydro-cylinder and blanking guide pillar; The end face of blanking support plate is inclined-plane, and the low side of its end face is provided with discharge flapper; Bottom surface and the blanking hydro-cylinder of blanking support plate are assembled together, and are fixed with blanking guide pillar; The side of each blanking device is provided with blanking rack, and blanking rack is positioned at the low side of each blanking support plate end face.
Above-mentioned Medium frequency induction furnace apparatus comprises Medium Frequency Induction Heating Furnace and lifting device; Base and the lifting device of Medium Frequency Induction Heating Furnace are assembled together, and Medium Frequency Induction Heating Furnace is arranged between adjacent two roller-ways of Frequency Induction Heating roller-way; Lifting device is worm and gear elevator, and top is fixedly connected with Medium Frequency Induction Heating Furnace base, drives lifting by shake handwheel.
Above-mentioned high temperature resistance furnace apparatus comprises high temperature resistance furnace and high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement; High temperature resistance furnace comprises bell and furnace bottom, furnace bottom and holding furnace base hinged; High temperature resistance furnace is fixed with high temperature resistance furnace charge arm;
High temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement comprise fascinate cylinder pedestal, furnace bottom of furnace bottom and to fascinate oil cylinder, bracing frame, opening and closing lid cylinder pedestal, opening and closing lid oil cylinder, chain gear apparatus, double strand chain, chain Connection Block and opening and closing lid hinged seat; Chain Connection Block is fixed on bell upper surface, chain Connection Block is connected with double strand chain one end, double strand chain hangs on the chain gear apparatus on bracing frame, and the double strand chain the other end and opening and closing lid oil cylinder are assembled together, and opening and closing lid oil cylinder lower end is connected with bracing frame by bearing pin; Bracing frame is fixed on the grate of furnace bottom, for supporting opening and closing lid oil cylinder, chain gear apparatus and double strand chain; Bracing frame is equipped with limit switch, controls the maximum angle that bell is opened; Furnace bottom oil cylinder lower end of fascinating is connected by bearing pin and the furnace bottom cylinder pedestal that fascinates, upper end and bracing frame by pinned connection, mounting limit switch on furnace bottom supporting seat;
The leading portion of high temperature resistance furnace charge arm extends between adjacent two roller-ways of air cooling roller-way group, and higher than roller-way level height;
Above-mentioned low-temperature resistance furnace apparatus comprises low-temperature resistance stove, low-temperature resistance furnace charge arm and low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Low-temperature resistance furnace structure is identical with high temperature resistance furnace; Low-temperature resistance stove opening and closing lid is identical with furnace bottom tiling arrangement with high temperature resistance furnace opening and closing lid with furnace bottom tiling arrangement structure; Low-temperature resistance furnace charge arm configuration is identical with high temperature resistance furnace charge arm, and its front end extends between adjacent two roller-ways of blanking roller-way group.
In two above-mentioned opening and closing lids and furnace bottom tiling arrangement, 2 synchronous hydraulic cylinders control the opening and closing of bell by chain and limit switch, can ensure normal input and output material requirement; By 2 synchronous hydraulic cylinders and limit switch and obliquity sensor, control the accurate angle of furnace bottom and fascinate, complete single steel pipe turnover stove.
Above-mentioned ultra-fast cooling device comprises water shutoff framework, support frame, nozzle unit, nozzle bracket, nozzle bracket guide pillar and nozzle bracket hydro-cylinder; Water shutoff framework is the case structure of both ends open, and side is provided with transparent toughened glass viewing window, and inside is provided with support frame for supporting; Multiple nozzle bracket hydro-cylinder is arranged on outside water shutoff frame upper surface; A nozzle bracket in each nozzle bracket hydro-cylinder and water shutoff framework is assembled together, for being elevated nozzle bracket; Each nozzle bracket is fixed with multiple nozzle unit, and each nozzle bracket is provided with nozzle bracket guide pillar; The end of water shutoff lower portion is provided with an air blowing air-dry apparatus, and air blowing air-dry apparatus is annular, and inside is provided with multiple jet nozzle, and each jet nozzle is communicated with the inlet pipe on air blowing air-dry apparatus.
Described each nozzle unit is columnar structured, comprises a supper-fast quenching cooler of steel pipe and a gas-mist cooling device; The supper-fast quenching cooler of steel pipe and gas-mist cooling device are fixed together; Gas-mist cooling device inside is provided with multiple aerial fog nozzle, and each aerial fog nozzle is communicated with aerosol cold air inlet mist pipe; Each R-joining nozzle in the supper-fast quenching cooler of steel pipe is communicated with ultrafast cold water inlet pipe; Ultrafast cold water inlet pipe and aerosol cold air inlet mist Guan Jun extend to outside water shutoff framework; Each nozzle unit is arranged between adjacent two roller-ways of ultrafast cold roller-way group.
Adopt the multi-functional heat treatment system of above-mentioned steel pipe to heat-treat steel pipe, realize the Steel Pipe Heat process of following processing method as required respectively:
1, intermediate frequency diathermanous → air cooling → quenching;
2, intermediate frequency diathermanous → quenching → tempering;
3, intermediate frequency diathermanous → air cooling → controlled cooling model (temperature range cooling) → air cooling;
4, intermediate frequency diathermanous → insulation → air cooling;
5, intermediate frequency diathermanous → insulation → quenching;
6, intermediate frequency diathermanous → insulation → quenching → tempering;
7, intermediate frequency diathermanous → insulation → controlled cooling model (temperature range cooling) → air cooling;
8, intermediate frequency diathermanous → insulation → controlled cooling model (temperature range cooling) → insulation → air cooling;
9, intermediate frequency diathermanous → insulation → controlled cooling model (temperature range cooling) → air cooling → quenching;
10, intermediate frequency diathermanous → insulation → controlled cooling model (temperature range cooling) → air cooling → quenching → tempering;
11, anneal;
12, timeliness.
The realization of the heat-treatment technology method of above-mentioned steel pipe selectivity can implement following steps as required:
(1) material loading: steel pipe is placed on the roller-way of charging roller group by feeding device;
(2) heating in medium frequency: start charging roller group and steel pipe is sent on the roller-way of Frequency Induction Heating roller-way group, start Medium Frequency Induction Heating Furnace and Frequency Induction Heating roller-way group, make Medium Frequency Induction Heating Furnace carry out induction heating to steel pipe, and steel pipe is sent on the roller-way of air cooling roller-way group;
(3) high temperature resistance furnace insulation: fascinate high temperature resistance furnace before steel pipe enters air cooling roller-way group; When steel pipe enters air cooling roller-way group completely and is parked on the roller-way of high temperature resistance stokehold, start high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement; Open high temperature resistance furnace bell, return high temperature resistance furnace, lifted by steel pipe by material arm, steel pipe enters in high temperature resistance furnace, then closes high temperature resistance furnace bell, carries out samming insulation to steel pipe; After samming insulation terminates, start high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement; Open high temperature resistance furnace bell, rotate high temperature resistance furnace, steel pipe enters on material arm, and under material arm, general who has surrendered's steel pipe is put on the roller-way of air cooling roller-way group; Start air cooling roller-way group and follow-up roller-way group, steel pipe is sent on the follow-up roller-way of air cooling roller-way group; Then enter on the roller-way of ultrafast cold roller-way group;
(4) controlled cooling model: by regulating the height of each nozzle unit of ultra-fast cooling device, making steel pipe be positioned at each nozzle unit center, pass into water coolant or mix aerosol by water is gentle to nozzle unit, carries out controlled cooling model to steel pipe until quenching; Then carry out air blowing cleaning by air blowing air-dry apparatus, steel pipe enters spray roller-way group in outer pouring;
(5) drench interior spray quenching outward: by spray apparatus in outer pouring, spray quenching in outer pouring is carried out to steel pipe, be then put back in outer pouring interior spray roller-way group; Steel pipe is by spraying roller-way group in outer pouring and blanking roller-way group is transported to roller-way end;
(6) low-temperature resistance stove tempering heating: fascinate high temperature resistance furnace when steel pipe stops to roller-way end before steel pipe enters air cooling roller-way, starts low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Open low-temperature resistance stove bell, return low-temperature resistance stove, lifted by steel pipe by material arm, steel pipe enters in low-temperature resistance stove, then closes low-temperature resistance stove bell, carries out heating and thermal insulation to steel pipe; After insulation terminates, start low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Open low-temperature resistance stove bell, rotate low-temperature resistance stove, steel pipe enters on material arm, and under material arm, general who has surrendered's steel pipe is put on the roller-way of blanking roller-way group;
(7) blanking: taken off by steel pipe by blanking device, completes thermal treatment.
The invention has the beneficial effects as follows:
The multi-functional heat treatment system of steel pipe arranges in induction heater, high/low temperature resistance furnace, ultra-fast cooling device, outer pouring by processing requirement the equipment such as quenching device of spraying water, whole piece processing line is compact to design, easy and simple to handle, can according to processing requirement, combination selection required equipment, meets the multiple thermal treatment process requirement of steel pipe;
Adopt medium-frequency induction furnace to heat steel pipe, rate of heating is fast, and steel tube surface only produces the very thin iron scale of one deck, and after heating, body grain-size is little, is beneficial to the improvement of steel pipe tissue and the lifting of performance; Resistance furnace is adopted to carry out soaking insulation to the steel pipe after induction heating, resistance furnace in advance empty stove is warming up to steel pipe heating target temperature (entering stove to temperature), shorten the steel pipe heating and thermal insulation time, solve the resistance furnace heat-up rate short problem of induction heating soaking time slowly, substantially increase Steel Pipe Heat work for the treatment of efficiency;
The supper-fast quenching cooler of steel pipe with annular R-joining nozzle unit is adopted to carry out water spray controlled cooling model to steel pipe, the water coolant that annular R-joining nozzle can make nozzle spray forms the larger circular water hole of hydraulic pressure, when the steel pipe that diameter is greater than Circularhole diameter is by annular R-joining nozzle, water coolant is ejected into steel tube surface with certain even angle, the steam film formed between the remaining water of steel tube surface and steel pipe will be purged, contacting completely between steel pipe with water coolant can be reached, realize nucleate boiling, cooling performance is obvious, greatly accelerate steel pipe process of cooling, for controlling the cooling process of steel pipe before transformation temperature, improve the structure and properties of steel, obtain good integrative organization's performance and equipment guarantee is provided,
Induction heater can adjust up and down according to the specification of steel pipe, to make the medullary ray of process furnace interior loop and steel pipe medullary ray be consistent, thus ensures that body Heating temperature is even;
According to the specification of steel pipe, the nozzle unit of ultra-fast cooling device can move up and down with nozzle framework, ensure that annular nozzle medullary ray and different diameter steel pipe are coordinated, when different size steel pipe spiral can be made to advance, circumference uniform contact is to water coolant or aerosol, and the cooling of steel pipe circumference evenly.
Ultra-fast cooling device end is provided with air blowing air-dry apparatus, the pressurized air of the R-joining nozzle ejection on it, the steam that steel pipe water-spraying control or spray cooling are formed is cleaned, prepares for temperature of steel pipe after controlled cooling model detects, the cold rear thermometric error of control can be effectively reduced.
Accompanying drawing explanation
Fig. 1 is the multi-functional heat treatment system structural representation of the steel pipe in the embodiment of the present invention;
Fig. 2 is the feeding device structural representation in the embodiment of the present invention;
Fig. 3 is Medium frequency induction furnace apparatus in the embodiment of the present invention and Frequency Induction Heating roller-way group structural representation;
Fig. 4 is the high temperature resistance furnace apparatus structure schematic diagram in the embodiment of the present invention;
Fig. 5 is high temperature resistance furnace opening and closing lid in the embodiment of the present invention and furnace bottom tiling arrangement local section structural representation;
Fig. 6 be the A-A of Fig. 5 to local structure schematic diagram,
Fig. 7 be the B-B of Fig. 5 to local structure schematic diagram,
Fig. 8 is that the P of Fig. 5 is to local structure schematic diagram;
Fig. 9 is the ultra-fast cooling device structural representation in the embodiment of the present invention;
Figure 10 is the side-view of Fig. 6;
Figure 11 is the nozzle unit cross-sectional view of the ultra-fast cooling device in the embodiment of the present invention;
Figure 12 is the air blowing air-dry apparatus cross-sectional view of the ultra-fast cooling device in the embodiment of the present invention;
Figure 13 is the side-view of Figure 12;
Figure 14 is spray apparatus structural representation in the outer pouring in the embodiment of the present invention;
Figure 15 is the blanking device structural representation in the embodiment of the present invention;
In figure, 1, charging roller group, 2, Frequency Induction Heating roller-way group, 3, air cooling roller-way group, 4, ultrafast cold roller-way group, 5, spray roller-way group in outer pouring, 6, blanking roller-way group, 7, feeding device, 8, Medium frequency induction furnace apparatus, 9, high temperature resistance furnace apparatus, 10, ultra-fast cooling device, 11, spray apparatus in outer pouring, 12, low-temperature resistance furnace apparatus, 13, blanking device, 14, feeding skid, 15, loading supporting plate, 16, material loading hydro-cylinder, 17, material loading guide pillar, 18, medium-frequency induction furnace lifting device, 19, medium-frequency induction furnace, 20, high temperature resistance furnace bell, 21, high temperature resistance furnace furnace bottom, 22, high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement, 22-1, furnace bottom fascinates cylinder pedestal, 22-2, furnace bottom fascinates oil cylinder, 22-3, bracing frame, 22-4, opening and closing lid cylinder pedestal, 22-5, opening and closing lid oil cylinder, 22-6, chain gear apparatus, 22-7, double strand chain, 22-8, chain Connection Block, 22-9, opening and closing lid hinged seat, 23, high temperature resistance furnace charge arm, 24, water shutoff framework, 25, support frame, 26, air blowing air-dry apparatus, 26-1, jet nozzle, 27, nozzle unit, 27-1, nozzle governing cage plate, 27-2, nozzle unit shell, 27-3, cooling water layer, 27-4, guide water board, 27-5, water guide post, 27-6, R-joining nozzle, 27-7, current stabilization layer wallboard, 27-8, set screw, 27-9, aerosol guide hole, 27-10, aerosol guide plate, 27-11, the cold nozzle unit shell of aerosol, 27-12, aerial fog nozzle, 28, nozzle bracket, 29, nozzle bracket guide pillar, 30, nozzle bracket hydro-cylinder, 31, ultrafast cold water inlet pipe, 32, aerosol cold air inlet mist pipe, 33, viewing window, 34, outer shower device, 35, hold-down gear, 36, materials device is spooned, 37 outside interior spray, swivel arrangement, 38, blanking support plate, 39, blanking hydro-cylinder, 40 blanking guide pillars, 41, blanking rack.
Embodiment
The supper-fast quenching cooler of the steel pipe adopted in the embodiment of the present invention is the supper-fast quenching cooler of steel pipe disclosed in patent CN102876874B.
The multi-functional heat treatment system structure of the steel pipe in the embodiment of the present invention as shown in Figure 1, comprises spray apparatus 11 and low-temperature resistance furnace apparatus 12 in six groups of roller-ways, Medium frequency induction furnace apparatus 8, high temperature resistance furnace apparatus 9, ultra-fast cooling device 10, outer pouring; Six groups of roller-ways are arranged in order form by spraying roller-way group 5 and blanking roller-way group 6 in charging roller group 1, Frequency Induction Heating roller-way group 2, air cooling roller-way group 3, ultrafast cold roller-way group 4, outer pouring;
Medium frequency induction furnace apparatus 8 is arranged between adjacent two roller-ways of Frequency Induction Heating roller-way group 2, as shown in Figure 3; High temperature resistance furnace apparatus 9 is arranged on air cooling roller-way group 3 side; It is inner that ultrafast cold roller-way group 4 is arranged on ultra-fast cooling device 10; In outer pouring, spray apparatus 11 is arranged on spray roller-way group 5 side in outer pouring; Low-temperature resistance furnace apparatus 12 is arranged on blanking roller-way group 6 side;
Two cover feeding devices 7 are provided with between the roller-way of charging roller group; As shown in Figure 2, feeding device 7 comprises loading supporting plate 15, material loading hydro-cylinder 16 and material loading guide pillar 17; The end face of loading supporting plate 15 is inclined-plane, and the low side of its end face is provided with material loading baffle plate; Bottom surface and the material loading hydro-cylinder 16 of loading supporting plate 15 are assembled together, and are fixed with material loading guide pillar 17; The side of each feeding device is provided with feeding skid 14, and feeding skid is positioned at the high-end of each loading supporting plate 15 end face;
Two cover blanking devices 13 are provided with between the roller-way of blanking roller-way group; As shown in figure 15, blanking device 13 comprises blanking support plate 38, blanking hydro-cylinder 39 and blanking guide pillar 40; The end face of blanking support plate 38 is inclined-plane, and the low side of its end face is provided with discharge flapper; Bottom surface and the blanking hydro-cylinder 39 of blanking support plate 38 are assembled together, and are fixed with blanking guide pillar 40; The side of each blanking device is provided with blanking rack 41, and blanking rack 41 is positioned at the low side of each blanking support plate 38 end face;
As shown in Figure 3, Medium frequency induction furnace apparatus 8 comprises Medium Frequency Induction Heating Furnace 19 and lifting device 18; Base and the lifting device 18 of Medium Frequency Induction Heating Furnace 19 are assembled together, and Medium Frequency Induction Heating Furnace arranges 19 between adjacent two roller-ways of Frequency Induction Heating roller-way 2; Lifting device is worm and gear elevator, and top is fixedly connected with Medium Frequency Induction Heating Furnace base, drives lifting by shake handwheel;
As shown in Figure 4, high temperature resistance furnace apparatus 9 comprises high temperature resistance furnace and high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement 22; High temperature resistance furnace comprises bell 20 and furnace bottom 21, and furnace bottom 20 is hinged with holding furnace base; High temperature resistance furnace charge arm 23 is fixed on furnace bottom 21;
As shown in Fig. 5 ~ 8, high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement 22 comprise fascinate cylinder pedestal 22-1, furnace bottom of furnace bottom and to fascinate oil cylinder 22-2, bracing frame 22-3, opening and closing lid cylinder pedestal 22-4, opening and closing lid oil cylinder 22-5, chain gear apparatus 22-6, double strand chain 22-7, chain Connection Block 22-8 and opening and closing lid hinged seat 22-9; It is hinged that bell 20 and furnace bottom 21 pass through opening and closing lid hinged seat 22-9;
Chain Connection Block 22-8 is fixed on bell 20 upper surface, chain Connection Block 22-8 is connected with double strand chain 22-7 one end, double strand chain 22-7 hangs on the chain gear apparatus 22-6 on bracing frame, the double strand chain 22-7 the other end and opening and closing lid oil cylinder 22-5 are assembled together, and opening and closing lid oil cylinder 22-5 lower end is connected with bracing frame 22-2 by bearing pin;
Bracing frame 22-2 is welded on the grate of furnace bottom 21, for supporting opening and closing lid oil cylinder 22-5, chain gear apparatus 22-6 and double strand chain 22-7; Bracing frame 22-3 is equipped with limit switch, controls the maximum angle that bell 20 is opened; Furnace bottom oil cylinder 22-2 lower end of fascinating is connected by bearing pin and the furnace bottom cylinder pedestal 22-1 that fascinates, and upper end and bracing frame 22-3 are by pinned connection, and mounting limit switch on furnace bottom supporting seat, controls the maximum angle that furnace bottom 21 fascinates;
The leading portion of high temperature resistance furnace charge arm 23 extends between adjacent two roller-ways of air cooling roller-way group 3, and when furnace bottom is in heating and thermal insulation state, material arm is in above the level of roller-way;
Low-temperature resistance furnace apparatus comprises low-temperature resistance stove and low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Low-temperature resistance stove opening and closing lid is identical with furnace bottom tiling arrangement with high temperature resistance furnace opening and closing lid with furnace bottom tiling arrangement structure; Low-temperature resistance furnace charge arm configuration is identical with insulation furnace charge arm, and its front end extends between adjacent two roller-ways of blanking roller-way group; Low-temperature resistance furnace structure is identical with high temperature resistance furnace;
As shown in Figures 9 and 10, ultra-fast cooling device water shutoff framework 24, support frame 25, air blowing air-dry apparatus 26, nozzle unit 27, nozzle bracket 28, nozzle bracket guide pillar 29, nozzle bracket hydro-cylinder 30, ultrafast cold water inlet pipe 31 and aerosol cold air inlet mist pipe 32;
Water shutoff framework is the case structure of 24 both ends open, and side is provided with transparent toughened glass viewing window 33, and for observing steel pipe cooling situation, water shutoff framework 24 inside is provided with support frame 25 for supporting; 2 nozzle bracket hydro-cylinders 30 are arranged on outside water shutoff framework 24 upper surface; Each nozzle bracket hydro-cylinder 30 is assembled together, for being elevated nozzle bracket 28 with a nozzle bracket 28 in water shutoff framework 24; Each nozzle bracket 28 is fixed with 3 nozzle units 27, and each nozzle bracket 28 is provided with nozzle bracket guide pillar 29; The end of water shutoff framework 24 inside is provided with an air blowing air-dry apparatus 26, and air blowing air-dry apparatus 26 is annular, and as shown in Figures 12 and 13, inside is provided with 6 jet nozzle 26-1 to structure, and each jet nozzle 26-1 is communicated with the inlet pipe on air blowing air-dry apparatus;
As shown in figure 11, each nozzle unit 27 is columnar structured, comprises a supper-fast quenching cooler of steel pipe and a gas-mist cooling device; The supper-fast quenching cooler of steel pipe and gas-mist cooling device are fixed together; Gas-mist cooling device inside is provided with multiple aerial fog nozzle 27-12, and each aerial fog nozzle 27-12 is communicated with aerosol cold air inlet mist pipe 32; Each R-joining nozzle in the supper-fast quenching cooler of steel pipe is communicated with ultrafast cold water inlet pipe 31; Ultrafast cold water inlet pipe 31 and aerosol cold air inlet mist pipe 32 all extend to outside water shutoff framework 24;
Each nozzle unit is arranged between adjacent two roller-ways of ultrafast cold roller-way group 4.
Embodiment 1
Steel pipe specification selected by the present embodiment is Φ 139.7 × 7.72 × 5000mm, and process for heat treatment of steel pipe method is: intermediate frequency is diathermanous → and insulation → controlled cooling model → quenching → tempering, processing step is as follows:
On the feeding skid in advance handling steel tubes extremely tilted, and put successively; Start feeding device, steel pipe holds up from feeding skid by the loading supporting plate on device, and steel pipe rolls on the loading supporting plate with postive stop baffle (material loading baffle plate), and the reduction along with loading supporting plate falls in charging roller group;
Frequency Induction Heating: start charging roller group and medium-frequency induction furnace roller-way group, steel pipe is moved forward, when steel pipe movement arrives in medium-frequency induction furnace, stop roller-way, adjustment medium-frequency induction furnace height, makes steel pipe be positioned in the middle of medium-frequency induction furnace heater coil, then starts roller-way in the other direction, steel pipe is stopped supreme material level, waits for heating in medium frequency; Setting medium-frequency induction furnace Heating temperature is 1000 DEG C, roller speed 3m/min, and start medium-frequency induction furnace, charging roller group and medium-frequency induction furnace roller-way group, steel pipe is by the continuous rapid heating of medium-frequency induction furnace;
High temperature resistance furnace soaking is incubated: by high temperature resistance furnace in advance empty stove be warming up to 1000 DEG C, and steel pipe in induction heating section time start opening and closing lid and high temperature resistance furnace tilts to into material level by furnace bottom tiling arrangement in advance; When steel pipe runs stokehold, stop air cooling roller-way group, open bell fast, slowly return furnace bottom, steel pipe rolls in stove with high temperature resistance furnace charge arm, quick closedown bell, heating and thermal insulation 25min;
Controlled cooling model: according to the external diameter of steel pipe, the height of adjustment ultra-fast cooling device nozzle bracket, make steel pipe by time be positioned at the center of ring nozzle unit; Select water spray controlled cooling model, setting irrigation pressure is 0.6MPa, roller speed 0.8m/s; After steel pipe has been incubated, start spray roller-way group in ultra-fast cooling device, air cooling roller-way group and outer pouring, steel pipe is come out of the stove and is conducted through device by roller-way and cools fast; Before and after controlled cooling model, temperature is respectively 880 DEG C and 450 DEG C;
Spray quenching in outer pouring: control cold after steel pipe transport and material level on the quenching device that stops spraying water to outer pouring by spraying roller-way group in outer pouring, by there is the material loading arm feeding of Hui Sidun principle on swivel arrangement, contact roller compresses steel pipe, carry out steel pipe and drench interior spray spin hardening cooling outward, the setting cool time is 10s, interior jet flow amount 320m
3/ h, outer pouring flow 720m
3/ h, after cooling, steel pipe moves to air blowing station, blowing out steel pipe inner wall residuary water, blowing after terminating by being connected with compressed-air actuated nozzle from one end, and in blanking to outer pouring in spray roller-way group, in outer pouring, after spray, temperature of steel pipe is 30 DEG C;
Low-temperature resistance stove heating and thermal insulation: low-temperature resistance stove tilts to into material level by startup opening and closing lid and furnace bottom tiling arrangement; Start spray roller-way group and blanking roller-way group in outer pouring, steel pipe is moved to roller-way end, open bell fast, slowly return furnace bottom, steel pipe rolls in stove with low-temperature resistance furnace charge arm, and quick closedown bell is heated to 550 DEG C, after insulation 30min, come out of the stove in blanking roller-way group, air cooling;
The steel pipe being chilled to room temperature is held up by blanking device and rolls on storing stand, products for further process.
Embodiment 2
Steel pipe specification selected by the present embodiment is Φ 152.4 × 14 × 5000mm, and process for heat treatment of steel pipe method is: intermediate frequency is diathermanous → and insulation → air cooling → controlled cooling model → air cooling, processing step is as follows:
On the feeding skid in advance handling steel tubes extremely tilted, and put successively; Start feeding device, steel pipe holds up from feeding skid by the loading supporting plate on device, and steel pipe rolls on the loading supporting plate with postive stop baffle (material loading baffle plate), and the reduction along with loading supporting plate falls in charging roller group;
Frequency Induction Heating: start charging roller group and medium-frequency induction furnace roller-way group, steel pipe is moved forward, when steel pipe movement arrives in medium-frequency induction furnace, stop roller-way, adjustment medium-frequency induction furnace height, makes steel pipe be positioned in the middle of medium-frequency induction furnace heater coil, then starts roller-way in the other direction, steel pipe is stopped supreme material level, waits for heating in medium frequency; Setting medium-frequency induction furnace Heating temperature is 1100 DEG C, roller speed 2m/min, and start medium-frequency induction furnace, charging roller group and medium-frequency induction furnace roller-way group, steel pipe is by the continuous rapid heating of medium-frequency induction furnace;
High temperature resistance furnace soaking is incubated: by high temperature resistance furnace in advance empty stove be warming up to 1100 DEG C, and steel pipe in induction heating section time start opening and closing lid and high temperature resistance furnace tilts to into material level by furnace bottom tiling arrangement in advance; When steel pipe runs stokehold, stop air cooling roller-way group, open bell fast, slowly return furnace bottom, steel pipe rolls in stove with high temperature resistance furnace charge arm, quick closedown bell, heating and thermal insulation 30min;
Air cooling: after steel pipe has been incubated, start air cooling roller-way group, steel pipe is come out of the stove, and controls speed and the traffic direction of roller-way, steel pipe is is slowly come and gone back and forth in air cooling roller-way group and carries out air cooling;
Refrigeration is but: according to the external diameter of steel pipe, the height of adjustment ultra-fast cooling device nozzle bracket, make steel pipe by time be positioned at the center of ring nozzle unit; Select water spray controlled cooling model, setting irrigation pressure is 0.5MPa, roller speed 0.6m/s; When steel pipe air cooling to 900 DEG C (being measured by roller-way side temperature detector), start ultra-fast cooling device, steel pipe is conducted through device accelerated controlled cooling fast by ultrafast cold roller-way group, and the temperature after controlled cooling model is 550 DEG C;
Air cooling: control cold after steel pipe slowly come and go on roller-way and transmit, air cooling is to room temperature;
The steel pipe being chilled to room temperature is held up by blanking device and rolls on storing stand, products for further process.
The above two routine embodiment is only useful explanation of the present invention, is not do other forms of restriction to the present invention, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or the Equivalent embodiments of the change such as remodeling; In every case be do not depart from technical solution of the present invention content, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still belong to the protection domain of invention technical scheme.
Claims (6)
1. a multi-functional heat treatment system for steel pipe, is characterized in that comprising spray apparatus and low-temperature resistance furnace apparatus in six groups of roller-ways, Medium frequency induction furnace apparatus, high temperature resistance furnace apparatus, ultra-fast cooling device, outer pouring; Six groups of roller-ways are arranged in order form by spraying roller-way group and blanking roller-way group in charging roller group, Frequency Induction Heating roller-way group, air cooling roller-way group, ultrafast cold roller-way group, outer pouring; Medium frequency induction furnace apparatus is arranged between adjacent two roller-ways of Frequency Induction Heating roller-way group; High temperature resistance furnace apparatus is arranged on air cooling roller-way group side; Ultrafast cold roller-way group is arranged on ultra-fast cooling device inside; In outer pouring, spray apparatus is arranged on spray roller-way group side in outer pouring; Low-temperature resistance furnace apparatus is arranged on blanking roller-way group side; Described high temperature resistance furnace apparatus comprises high temperature resistance furnace and high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement; High temperature resistance furnace comprises bell and furnace bottom, furnace bottom and holding furnace base hinged; High temperature resistance furnace is fixed with high temperature resistance furnace charge arm; High temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement comprise fascinate cylinder pedestal, furnace bottom of furnace bottom and to fascinate oil cylinder, bracing frame, opening and closing lid cylinder pedestal, opening and closing lid oil cylinder, chain gear apparatus, double strand chain, chain Connection Block and opening and closing lid hinged seat; Chain Connection Block is fixed on bell upper surface, chain Connection Block is connected with double strand chain one end, double strand chain hangs on the chain gear apparatus on bracing frame, and the double strand chain the other end and opening and closing lid oil cylinder are assembled together, and opening and closing lid oil cylinder lower end is connected with bracing frame by bearing pin; Bracing frame is fixed on the grate of furnace bottom, for supporting opening and closing lid oil cylinder, chain gear apparatus and double strand chain; Bracing frame is equipped with limit switch, controls the maximum angle that bell is opened; Furnace bottom oil cylinder lower end of fascinating is connected by bearing pin and the furnace bottom cylinder pedestal that fascinates, upper end and bracing frame by pinned connection, mounting limit switch on furnace bottom supporting seat; The leading portion of high temperature resistance furnace charge arm extends between adjacent two roller-ways of air cooling roller-way group, and higher than roller-way level height;
Described low-temperature resistance furnace apparatus comprises low-temperature resistance stove, low-temperature resistance furnace charge arm and low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Low-temperature resistance furnace structure is identical with high temperature resistance furnace; Low-temperature resistance stove opening and closing lid is identical with furnace bottom tiling arrangement with high temperature resistance furnace opening and closing lid with furnace bottom tiling arrangement structure; Low-temperature resistance furnace charge arm configuration is identical with high temperature resistance furnace charge arm, and its front end extends between adjacent two roller-ways of blanking roller-way group.
2. the multi-functional heat treatment system of a kind of steel pipe according to claim 1, is characterized in that described Medium frequency induction furnace apparatus comprises Medium Frequency Induction Heating Furnace and lifting device; Base and the lifting device of Medium Frequency Induction Heating Furnace are assembled together, and Medium Frequency Induction Heating Furnace is arranged between adjacent two roller-ways of Frequency Induction Heating roller-way; Lifting device is worm and gear elevator, and top is fixedly connected with Medium Frequency Induction Heating Furnace base, drives lifting by shake handwheel.
3. the multi-functional heat treatment system of a kind of steel pipe according to claim 1, is characterized in that described ultra-fast cooling device comprises water shutoff framework, support frame, nozzle unit, nozzle bracket, nozzle bracket guide pillar and nozzle bracket hydro-cylinder; Water shutoff framework is the case structure of both ends open, and side is provided with transparent toughened glass viewing window, and inside is provided with support frame for supporting; Multiple nozzle bracket hydro-cylinder is arranged on outside water shutoff frame upper surface; A nozzle bracket in each nozzle bracket hydro-cylinder and water shutoff framework is assembled together, for being elevated nozzle bracket; Each nozzle bracket is fixed with multiple nozzle unit, and each nozzle bracket is provided with nozzle bracket guide pillar; The end of water shutoff lower portion is provided with an air blowing air-dry apparatus, and air blowing air-dry apparatus is annular, and inside is provided with multiple jet nozzle, and each jet nozzle is communicated with the inlet pipe on air blowing air-dry apparatus.
4. the multi-functional heat treatment system of a kind of steel pipe according to claim 3, is characterized in that described nozzle unit is columnar structured, comprises a supper-fast quenching cooler of steel pipe and a gas-mist cooling device; The supper-fast quenching cooler of steel pipe and gas-mist cooling device are fixed together; Gas-mist cooling device inside is provided with multiple aerial fog nozzle, and each aerial fog nozzle is communicated with aerosol cold air inlet mist pipe; Each R-joining nozzle in the supper-fast quenching cooler of steel pipe is communicated with ultrafast cold water inlet pipe; Ultrafast cold water inlet pipe and aerosol cold air inlet mist Guan Jun extend to outside water shutoff framework; Each nozzle unit is arranged between adjacent two roller-ways of ultrafast cold roller-way group.
5. the method adopting the multi-functional heat treatment system of a kind of steel pipe described in right 1 to heat-treat steel pipe, is characterized in that the Steel Pipe Heat process realizing following processing method as required respectively:
(1) intermediate frequency diathermanous → air cooling → quenching;
(2) intermediate frequency diathermanous → quenching → tempering;
(3) intermediate frequency diathermanous → air cooling → controlled cooling model → air cooling;
(4) intermediate frequency diathermanous → insulation → air cooling;
(5) intermediate frequency diathermanous → insulation → quenching;
(6) intermediate frequency diathermanous → insulation → quenching → tempering;
(7) intermediate frequency diathermanous → insulation → controlled cooling model → air cooling;
(8) intermediate frequency diathermanous → insulation → controlled cooling model → insulation → air cooling;
(9) intermediate frequency diathermanous → insulation → controlled cooling model → air cooling → quenching;
(10) intermediate frequency diathermanous → insulation → controlled cooling model → air cooling → quenching → tempering;
(11) anneal;
(12) timeliness.
6. method of heat-treating steel pipe according to claim 5, is characterized in that selecting as required to implement following steps:
(1) material loading: steel pipe is placed on the roller-way of charging roller group by feeding device;
(2) heating in medium frequency: start charging roller group and steel pipe is sent on the roller-way of Frequency Induction Heating roller-way group, start Medium Frequency Induction Heating Furnace and Frequency Induction Heating roller-way group, make Medium Frequency Induction Heating Furnace carry out induction heating to steel pipe, and steel pipe is sent on the roller-way of air cooling roller-way group;
(3) high temperature resistance furnace insulation: fascinate high temperature resistance furnace before steel pipe enters air cooling roller-way group; When steel pipe enters air cooling roller-way group completely and is parked on the roller-way of high temperature resistance stokehold, start high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement; Open high temperature resistance furnace bell, return high temperature resistance furnace, lifted by steel pipe by material arm, steel pipe enters in high temperature resistance furnace, then closes high temperature resistance furnace bell, carries out samming insulation to steel pipe; After samming insulation terminates, start high temperature resistance furnace opening and closing lid and furnace bottom tiling arrangement; Open high temperature resistance furnace bell, rotate high temperature resistance furnace, steel pipe enters on material arm, and under material arm, general who has surrendered's steel pipe is put on the roller-way of air cooling roller-way group; Start air cooling roller-way group and follow-up roller-way group, steel pipe is sent on the follow-up roller-way of air cooling roller-way group; Then enter on the roller-way of ultrafast cold roller-way group;
(4) controlled cooling model: by regulating the height of each nozzle unit of ultra-fast cooling device, making steel pipe be positioned at each nozzle unit center, pass into water coolant or mix aerosol by water is gentle to nozzle unit, carries out controlled cooling model to steel pipe until quenching; Then carry out air blowing cleaning by air blowing air-dry apparatus, steel pipe enters spray roller-way group in outer pouring;
(5) drench interior spray quenching outward: by spray apparatus in outer pouring, spray quenching in outer pouring is carried out to steel pipe, be then put back in outer pouring interior spray roller-way group; Steel pipe is by spraying roller-way group in outer pouring and blanking roller-way group is transported to roller-way end;
(6) low-temperature resistance stove tempering heating: fascinate high temperature resistance furnace when steel pipe stops to roller-way end before steel pipe enters air cooling roller-way, starts low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Open low-temperature resistance stove bell, return low-temperature resistance stove, lifted by steel pipe by material arm, steel pipe enters in low-temperature resistance stove, then closes low-temperature resistance stove bell, carries out heating and thermal insulation to steel pipe; After insulation terminates, start low-temperature resistance stove opening and closing lid and furnace bottom tiling arrangement; Open low-temperature resistance stove bell, rotate low-temperature resistance stove, steel pipe enters on material arm, and under material arm, general who has surrendered's steel pipe is put on the roller-way of blanking roller-way group;
(7) blanking: taken off by steel pipe by blanking device, completes thermal treatment.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09143567A (en) * | 1995-11-15 | 1997-06-03 | Nittetsu Kokan Kk | Production of high strength steel tube |
| CN101078042A (en) * | 2007-06-28 | 2007-11-28 | 朱兴发 | Medium frequency induction heating treatment method for steel pipe, petroleum well pipe and drill pipe |
| CN101824526A (en) * | 2010-04-23 | 2010-09-08 | 西安长庆石油工具制造有限责任公司 | Medium-frequency heat treatment system and heat treatment process for petroleum tool irregular materials |
| CN102363835A (en) * | 2011-10-28 | 2012-02-29 | 东北大学 | Intermediate frequency induction heat treatment device for steel tubes, and heat treatment method of the same |
| CN102560057A (en) * | 2012-02-22 | 2012-07-11 | 北京科大中冶技术发展有限公司 | Heat treatment process method and system for hot rolled seamless steel tubes |
-
2014
- 2014-06-17 CN CN201410269347.6A patent/CN104032112B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09143567A (en) * | 1995-11-15 | 1997-06-03 | Nittetsu Kokan Kk | Production of high strength steel tube |
| CN101078042A (en) * | 2007-06-28 | 2007-11-28 | 朱兴发 | Medium frequency induction heating treatment method for steel pipe, petroleum well pipe and drill pipe |
| CN101824526A (en) * | 2010-04-23 | 2010-09-08 | 西安长庆石油工具制造有限责任公司 | Medium-frequency heat treatment system and heat treatment process for petroleum tool irregular materials |
| CN102363835A (en) * | 2011-10-28 | 2012-02-29 | 东北大学 | Intermediate frequency induction heat treatment device for steel tubes, and heat treatment method of the same |
| CN102560057A (en) * | 2012-02-22 | 2012-07-11 | 北京科大中冶技术发展有限公司 | Heat treatment process method and system for hot rolled seamless steel tubes |
Non-Patent Citations (2)
| Title |
|---|
| 双相钢无缝钢管的中频感应热处理工艺研究;朱伏先等;《钢管》;20130831;第42卷(第4期);11-15 * |
| 油井管中频感应加热热处理生产线的设计;常少文;《钢管》;20130430;第42卷(第2期);55-60 * |
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