CN102061367A - Solid solution heat treatment furnace - Google Patents
Solid solution heat treatment furnace Download PDFInfo
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- CN102061367A CN102061367A CN 201110028313 CN201110028313A CN102061367A CN 102061367 A CN102061367 A CN 102061367A CN 201110028313 CN201110028313 CN 201110028313 CN 201110028313 A CN201110028313 A CN 201110028313A CN 102061367 A CN102061367 A CN 102061367A
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Abstract
The invention discloses a solid solution heat treatment furnace which comprises a roller hearth type heat treatment furnace and a quenching machine which are connected, wherein the roller hearth type heat treatment furnace comprises a furnace body, furnace walls are arranged at the periphery of the furnace body, a furnace body feed hole and a furnace body discharge hole are respectively and correspondingly arranged in the furnace body, a plurality of furnace roller devices are arranged in parallel between the furnace body feed hole and the furnace body discharge hole, both ends of each furnace roller device are sealed in the furnace walls through a sealing module, each furnace roller device comprises a water cooling support shaft and a roller body, each water cooling support shaft is provided with a cooled water channel, each roller body is provided with an axially perforating cavity, each water cooling support shaft passes through the cavity and penetrates in the roller body, the roller body synchronously rotates with each water cooling support shaft, a containing space is arranged between the outer wall of each water cooling support shaft and the inner wall of each roller body, a plurality of support assemblies are arranged in parallel in the containing space at intervals along the axial direction, one side of each support assembly is connected with the outer wall of each water cooling support shaft, and a predetermined gap is arranged between the other side of each support assembly and the inner wall of each roller body.
Description
Technical field
The invention relates to a kind of solution heat treatment furnace, particularly about the solution heat treatment furnace of a kind of high temperature stainless steel and heat-resisting alloy steel, it can be higher than operation steady in a long-term under 1250 ℃ the condition in furnace temperature.
Background technology
Solution heat treatment furnace comprises interconnective roller hearth heat-treated furnace and quenching press.Roller hearth heat-treated furnace is the processing unit that generally uses in industries such as ferrous metallurgy, nonferrous metallurgy and machineries, in the production process of roller hearth heat-treated furnace, furnace roller places inside heating furnace, heated workpiece is placed on the furnace roller, according to speed and the temperature that related process is set, workpiece is driven by furnace roller and is heated when transmitting in process furnace.Quenching press is one of visual plant on the stainless steel steel heat-treatment production line, its function is with the high temperature steel through the process furnace heating, cool off fast through modes such as air-cooled, water-cooled or aerosol coolings, reduce separating out of alloy carbide to finish stabilization treatment, improve the stainless steel crystalline network, improve steel quality.Workpiece such as steel in roller hearth heat-treated furnace, heat or solution treatment after, transport through extremely short middle transition section, enter quenching press immediately and quench, with the hardness that improves workpiece, intensity, wear resistance to satisfy the use properties of part.
Because the thermal treatment temp height of stainless steel bar, pipe, conventional roller hearth heat-treated furnace is subjected to the restriction of the heat resisting temperature of the furnace roller in it, be difficult to satisfy its production requirement, so the heat treatment mode of interval types such as " batch-type furnaces " commonly used is finished the thermal treatment of stainless steel bar, pipe before, production efficiency is low, the energy consumption height.Progressively increase along with high-precision heat treated article usage quantity, the occasion that is heated workpiece and is stainless steel, high temperature corrosion resistant plate, rod, pipe etc. is more and more, the furnace temperature of roller hearth heat-treated furnace usually is higher than 1200 ℃, some heat treated part even require thermal treatment temp up to 1250 ℃ then makes the heat treatment furnace fire box temperature especially up to 1270 ℃.
Under this temperature, if the furnace roller device of roller hearth heat-treated furnace adopt not to have the cooling furnace roller, its body of roll material must have high hot strength performance, certainly will be with the high temperature steel of high Cr, Ni content.At present the furnace roller device that uses mainly is divided into following two kinds according to whether having refrigerating function:
1, do not have the cooling furnace roller, it is simple in structure, and is easy for installation, but when being higher than 1200 degrees centigrade owing to furnace temperature, the body of roll material of not having the cooling furnace roller must have high hot strength performance, certainly will adopt high Cr, Ni content alloy high temperature steel, cause the furnace roller cost high, increased considerably equipment cost.
2, direct cool furnace roller arrangement because heat-eliminating medium directly contacts with body of roll inwall, causes the body surface temperature very low, and the thermosteresis of heat treatment furnace is very big, and thermo-efficiency is low, causes energy dissipation comparatively serious; And, reduced the thermal treatment quality that is heated workpiece.
Under this temperature, the furnace roller sealed structure of conventional roller hearth heat-treated furnace can not satisfy the sealed, thermally insulated requirement under this high temperature, and conventional quenching press also can not satisfy the cooling requirement of the workpiece under this high temperature.
Therefore, be necessary to provide a kind of novel solution heat treatment furnace, to overcome above-mentioned shortcoming.
Summary of the invention
The objective of the invention is, a kind of solution heat treatment furnace is provided, it can be higher than steady in a long-term use the under 1200 degrees centigrade the condition in furnace temperature, satisfies being heated the higher heating quality requirement of workpiece, and can significantly reduce thermosteresis.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
A kind of solution heat treatment furnace, it comprises interconnective roller hearth heat-treated furnace and quenching press; Described roller hearth heat-treated furnace comprises: furnace body, be provided with furnace wall around it, and be provided with body of heater opening for feed and body of heater discharge port respectively accordingly at the two relative side positions of described furnace body; A plurality of furnace roller devices, it is arranged between body of heater opening for feed and the body of heater discharge port abreast, the two ends of each furnace roller device seal by seal modules and are arranged in the furnace wall, each furnace roller device comprises the water-cooled back shaft and the body of roll, the water-cooled back shaft is provided with cooling-water duct, the body of roll has the cavity of axial perforation, and described water-cooled back shaft is by described cavity and through the inside of the described body of roll, and the described body of roll be rotation setting synchronously with described water-cooled back shaft; Form accommodation space between the outer wall of described water-cooled back shaft and the inwall of the described body of roll, parallel vertically and compartment of terrain is provided with a plurality of supporting components in described accommodation space, one side of described supporting component is connected with the outer wall of described water-cooled back shaft, has predetermined gap between its opposite side and the described body of roll inwall.
The characteristics and the advantage of the solution heat treatment furnace of the embodiment of the invention are: it comprises roller hearth heat-treated furnace and quenching press, and the two ends of the furnace roller device in the roller hearth heat-treated furnace are arranged in the furnace wall of process furnace; Be provided with predetermined gap between supporting component and the body of roll inwall; Therefore reduced the heat conduction amount of back-up block, reduced the thermosteresis of heat treatment furnace, guaranteed the thermo-efficiency of heat treatment furnace device, thereby make thermal treatment be higher than steady in a long-term use the under 1200 degrees centigrade the condition in furnace temperature, satisfy being heated the higher heating quality requirement of workpiece, and can significantly reduce thermosteresis.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the solution heat treatment furnace of the embodiment of the invention;
Fig. 2 is the section enlarged diagram of roller hearth heat-treated furnace of the solution heat treatment furnace of the embodiment of the invention;
Fig. 3 is the structural representation of furnace roller device of the roller hearth heat-treated furnace of the embodiment of the invention;
Fig. 3 A is the cross-sectional view of the A-A of Fig. 3;
Fig. 3 B is the cross-sectional view of the B-B of Fig. 3;
Fig. 3 C is the cross-sectional view of the C-C of Fig. 3;
Fig. 4 is the A portion enlarged diagram of Fig. 2;
Fig. 5 is the structural representation of quenching press of the solution heat treatment furnace of the embodiment of the invention;
Fig. 6 is the structural profile synoptic diagram of quenching press of the solution heat treatment furnace of the embodiment of the invention;
Fig. 7 is the sectional schematic diagram of quenching press of the solution heat treatment furnace of the embodiment of the invention;
Fig. 7 A is the A portion enlarged diagram of Fig. 7.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment 1
Please refer to illustrated in figures 1 and 2, the solution heat treatment furnace of the embodiment of the invention, it comprises interconnective roller hearth heat-treated furnace G and quenching press 6.Roller hearth heat-treated furnace G comprises furnace body 1 and a plurality of furnace roller device 2, is provided with furnace wall 11 around the furnace body 1, is provided with body of heater opening for feed and body of heater discharge port respectively accordingly at the two relative side positions of described furnace body 1; A plurality of furnace roller devices 2 are arranged between body of heater opening for feed and the body of heater discharge port abreast, the two ends of each furnace roller device 2 seal by seal modules 3 and are arranged in the furnace wall 11, each furnace roller device 2 comprises the water-cooled back shaft 21 and the body of roll 22, water-cooled back shaft 21 is provided with cooling-water duct 211, makes cooling-water flowing play cooling effect to water-cooled back shaft 21 through this cooling-water duct 211.The body of roll 22 has the cavity of axial perforation, and described water-cooled back shaft 21 is by cavity and through the inside of the described body of roll 22, and the body of roll 22 be to rotate setting synchronously with water-cooled back shaft 21.Form accommodation space 23 between the inwall of the outer wall of described water-cooled back shaft 21 and the body of roll 22, parallel vertically and compartment of terrain is provided with a plurality of supporting components 24 in accommodation space 23, herein, be provided with two supporting components 24 in the accommodation space 23, but the invention is not restricted to this, according to the size of the body of roll 22 physical sizes, in the accommodation space 23 more supporting component 24 can be set.One side of described supporting component 24 is connected with the outer wall of water-cooled back shaft 21, has predetermined gap 25 between its opposite side and the body of roll 22 inwalls, the size of this gap width can preestablish according to factors such as the material of the weight that is heated workpiece, the body of roll 22 and wall thickness, as long as guarantee when being heated workpiece and being pressed on the body of roll 22, supporting component 24 can contact with the inwall of the body of roll 22 and get final product, and for example gap width is 5mm.
In the embodiment of the invention, described water-cooled back shaft 21 runs through cavity, and water-cooled back shaft 21 fixedlys connected with the two ends of the body of roll 22, and water-cooled back shaft 21 plays the effect of supporting the body of roll 22.And water-cooled back shaft 21 drives rotation and drives the body of roll 22 by the stove outer gearing and rotates synchronously, and water coolant only plays the refrigerative effect to water-cooled back shaft 22, the body of roll 22 is not cooled off.Like this, make furnace roller device 2 to be higher than steady in a long-term use the under 1200 degrees centigrade the condition in furnace temperature.Keep contacting comparing with the heat-eliminating medium in the prior art and the body of roll always, the present invention is only when being heated workpiece and being pressed on the body of roll 22, because the local deformation of the body of roll 22 makes part supporting component 24 contact with the body of roll 22, therefore reduce the thermosteresis of heat treatment furnace, improved thermo-efficiency.
The end of the described body of roll 22 is arranged in the furnace wall 11, thereby has reduced the heat conduction amount of the body of roll 22 significantly, has reduced thermosteresis.
Please refer to Fig. 3 B and Fig. 3 C, as a kind of optional embodiment of the present invention, each supporting component 24 is by forming perpendicular to equally distributed four back-up blocks 241 on the axial same circumferential plane of water-cooled back shaft 21, one side of each back-up block 241 is connected with described water-cooled back shaft 21, has aforementioned predetermined gap 25 between the inwall of its opposite side and the described body of roll 22, thereby reduced the heat transmission, reduced thermosteresis.Each supporting component 24 of the present invention also can be made up of two, three, five or the circumferential equally distributed back-up block 241 in more a plurality of edge, contact as long as can play with body of roll inwall, and the effect that reduces thermosteresis gets final product.
Further, a side that is connected with water-cooled back shaft 21 at described back-up block 241 offers the slotted eye 211 that axially connects along water-cooled back shaft 21, thereby has reduced the contact area of back-up block 241 with water-cooled back shaft 21, has increased thermal resistance.
Further, the back-up block of two adjacent described supporting components 24 setting along the circumferential direction interlaced with each other.Shown in Fig. 3 B, 3C, the back-up block 241 of each supporting component 24 along the circumferential direction is crisscross arranged with the back-up block 242 of adjacent supporting component 24, therefore makes the black seal of cooling of body surface be irregular distribution, has improved the heating quality that is heated workpiece.
As a kind of optional embodiment of the present invention, please in the lump with reference to figure 3A, two ends at the described body of roll 22 are installed with supporting cup 26 respectively, described supporting cup 26 is a key connecting with described water-cooled back shaft 21, thereby the described body of roll 22 is fixedlyed connected with water-cooled back shaft 21 by supporting cup 26, guaranteed that like this body of roll 22 and water-cooled back shaft 21 rotates synchronously, and water-cooled back shaft 21 plays the effect of the support body of roll 22, reduced the moment of torsion that the body of roll bore.But the present invention also is not limited thereto, supporting cup 26 can also adopt pin joint, clamping or other known mode of connection with water-cooled back shaft 21, as long as guaranteeing supporting cup 26 and water-cooled back shaft 21 links together, make the body of roll 22 and water-cooled back shaft 21 rotates synchronously, and the effect that water-cooled back shaft 21 plays the support body of roll 22 get final product.
Further, be provided with limit baffle ring 27 in supporting cup 26 both sides of an end of the described body of roll 22.As shown in Figure 3, in the present embodiment, described limit baffle ring 27 is weldingly fixed on the outer wall of water-cooled back shaft 21, and two limit baffle rings 27 are arranged at the two sides of supporting cup 26 respectively, make the body of roll 22 1 ends match by supporting cup 26 and limit baffle ring 27 and are limited in the fixed position of water-cooled back shaft 21.Thereby make an end of the body of roll 22 to be maintained fixed with water-cooled back shaft 21, its other end then can free to contract and expand, makes the body of roll have certain thermal expansion surplus, avoids the furnace roller device impaired, has improved the work-ing life of furnace roller device.
Further, as shown in Figure 3A, outer rim side and interior ring side at described supporting cup 26 are circumferentially laid groove 261,262 in the edge respectively, and the groove 262 of ring side is crisscross arranged in a circumferential direction with the groove 261 of outer rim side in described, and the groove 262 of promptly described interior ring side is laid along different radial directions with the groove 261 of outer rim side.Like this, reduce supporting cup 26 and the body of roll 22 and water-cooled back shaft 21 contacts area, increased thermal resistance, reduced the thermosteresis of heat treatment furnace, improved thermo-efficiency.
Preferably, in the present embodiment, the cross section of the groove 261 of supporting cup 26 outer rim side is trapezoidal, and the cross section semicircular in shape of the groove 262 of interior ring side is beneficial to increase thermal resistance and is suitable for processing.But the present invention also is not limited thereto, and the shape of groove 261,262 also can adopt Polygons, zig-zag or other suitable shapes, as long as can help increasing the thermal resistance of supporting cup, the thermosteresis that reduces the furnace roller device gets final product.
As another optional embodiment of the present invention, as shown in Figure 3, in described accommodation space 23, be filled with the thermofin 28 that forms by heat insulation medium, thereby reduced the heat conduction amount of the body of roll significantly, reduced thermosteresis; Simultaneously, improved the surface temperature of the body of roll 22.Wherein, described heat insulation medium can adopt lagging materials such as ceramic fiber, silica fiber or glass fibre.Other parts of present embodiment are identical with the 26S Proteasome Structure and Function of the foregoing description, no longer are repeated in this description at this.
In the present invention, the material of described water-cooled back shaft can be structural carbon steel, and the material of the described body of roll can be Heat resisting cast steel.Compare with the high temperature steel of the high Cr of available technology adopting, Ni content alloy, the present invention has reduced manufacturing cost significantly.
Therefore, furnace roller device of the present invention utilizes heat passage principle, in use, being heated the workpiece (not shown) is pressed on the body of roll 22, make the inwall of the body of roll 22 contact with the back-up block of supporting component 24, few part heat of the body of roll 22 is passed to water-cooled back shaft 21 by back-up block, and in order further to avoid the bigger thermosteresis of roller hearth heat-treated furnace G, the two ends of the body of roll 22 are arranged in the furnace wall 11 of process furnace; Be provided with predetermined gap 25 between supporting component 24 and the body of roll 22 inwalls; A side that is connected with described water-cooled back shaft at described back-up block offers the slotted eye that axially connects along described water-cooled back shaft.Increase thermal resistance like this, reduced the heat conduction amount of the body of roll 22, made the body of roll 22 keep higher temperature, thereby reduced the bigger thermosteresis of heat treatment furnace, improved thermo-efficiency, helped save energy, the furnace roller device can be higher than steady in a long-term use the under 1200 degrees centigrade the condition in furnace temperature.And, the body of roll 22 is fixed on water-cooled back shaft 21 by key 29 and limit baffle ring 27 and supporting cup 26 and with 21 rotations of water-cooled back shaft, in use, carry by water-cooled back shaft 21 from the mechanical load that is heated workpiece, water-cooled back shaft 21 plays the effect of supporting the body of roll 22, and places the high temperature steel body of roll in the burner hearth to be mainly used in the thermal load of bearing high-temperature furnace gas.
In addition, consult shown in Figure 1ly, the body of heater opening for feed of described roller hearth heat-treated furnace G and body of heater discharge port place can be respectively arranged with sealing curtain 4 and/or fire door 5.Wherein, sealing curtain 4 can be used for preventing that the furnace gas at stove gate place of roller hearth heat-treated furnace G is excessive, and effectively reduces cold wind and suck, and it can adopt the patent No. is the sealing curtain of CN200720126507.7; Fire door 5 can adopt suitable fire door known in the art.
The roller hearth heat-treated furnace of the embodiment of the invention can adopt pulse control mode to satisfy Control for Kiln Temperature requirement under the various loads.
See also Fig. 2 and shown in Figure 4, embodiment of the present invention relates to seal modules 3.
Seal modules 3 comprises sealing brick 31, described sealing brick 31 has communicating pores 311, in described communicating pores 311, in axial direction be provided with multi-layer fiber module 32, the end of described furnace roller device 2 is located in the described multi-layer fiber module 32, an end that passes described sealing brick 31 in described furnace roller device 2 ends is provided with tapetum fibrosum 33, and described tapetum fibrosum 33 sealings are arranged between the end of described sealing brick 31 and described furnace roller device.
Specifically be, sealing brick 31 internal openings are cylindrical tube shape, and it is fixedly installed in the furnace wall 11 of roller hearth heat-treated furnace G.Communicating pores 311 is opened in the center of sealing brick 31, and the end of furnace roller device 2 penetrates in the communicating pores 311 that seals brick 31 and carries on the back fiery face from furnace wall from furnace wall 11 counter-fire faces and passes sealing brick 31.Sealing brick 31 can play good supporting role to furnace wall, avoids causing the roller-way or the workpiece scratch furnace wall of the end of furnace roller device 2 owing to the furnace roller device 2 crooked end radiuses of gyration of furnace roller device that cause become big, causes that the situation that furnace wall damages takes place.
Above-mentioned communicating pores 311 is stepped, carries on the back the aperture of the communicating pores 311 of fiery face one side in the aperture of the communicating pores 311 of a side that is positioned at furnace wall counter-fire face less than being positioned at furnace wall.Multi-layer fiber module 32 is arranged in the bigger communicating pores in aperture 311, multi-layer fiber module 32 is on the ladder inner side-wall that fastens just near a side of furnace wall counter-fire face at communicating pores 311 like this, and leave certain clearance between the less communicating pores 311 of diameter of furnace roller device end and sealing brick 31, make the furnace roller device in the rotation work process, furnace roller device end does not contact with the counter-fire face port of sealing brick 31, prevents the damage of furnace roller device end.
Above-mentioned tapetum fibrosum 33 is packed in the back of the body fire face port of sealing brick 31, is used to seal furnace wall and carries on the back fibre module 32 and the furnace roller device end that fiery face falls outward.
Furnace rollers of roller bottom furnace sealed structure of the present invention, furnace roller device 2 ends are sheathed and be arranged in the communicating pores 311 of sealing brick 31 by fibre module 32, this fibre module 32 is sealing setting with the inner side-wall of sealing brick 31 communicating poress 311, the periphery wall of furnace roller device end, can prevent effectively that furnace gas from leaking outside, furnace temperature is loose outward, reduces hear rate; And the overlaying structure form of multi-layer fiber module 32 is also adopted in the end of furnace roller device and sealing between the brick 31, the multi-layer fiber module 32 of this overlaying structure has increased the obstruct distance, block possible leak outside furnace gas and furnace temperature layer by layer, make the sealing property of sealed structure of the present invention higher, can more effectively block radiant heat, prevent that furnace gas is excessive; In addition, furnace wall is carried on the back fiery face and is adopted tapetum fibrosum 33 fill plug seals, tapetum fibrosum 33 can be and contains the zirconium tapetum fibrosum, it has good effect of heat insulation and heat shock resistance, can prevent effectively that furnace gas is excessive, and these tapetum fibrosum 33 unit weights are low, thermal capacitance is low, can shorten the heating-up time of furnace roller device end greatly, play the effect that reduces furnace roller device end region temperature.
As a kind of optional embodiment of the present invention, described multi-layer fiber module 32 is provided with perforate 321, and the end of described furnace roller device is located in the described perforate 321, and the inner side-wall of described perforate 321 matches with the outline of the end of described furnace roller device.Specifically be, furnace roller device of the present invention end is the step shaft shape, the perforate 321 that is set in the multi-layer fiber module 32 of furnace roller device end also becomes ladder perforate shape, the inner side-wall of the periphery wall of the end of furnace roller device and multi-layer fiber module 32 closely cooperates, make furnace roller device end and multi-layer fiber module 32 sealing consolidations, reach good sealing effectiveness, can prevent that furnace gas from leaking outside, furnace temperature is loose outward, and thermosteresis is low; In other embodiment, shape according to furnace roller device end, this multi-layer fiber module 32 also can be carried out adaptive design, for example furnace roller device end is coniform, the perforate 321 of this multi-layer fiber module 32 also is designed to cone shape perforate shape so, as long as the inner side-wall of multi-layer fiber module 32 perforates 321 and the periphery wall of furnace roller end are closely cooperated.In addition, the number of plies of multi-layer fiber module 32 also can be selected according to practical situation, does not limit at this.In the present embodiment, in axial direction be provided with three layers of fibre module 32 in the communicating pores 311.
In addition, between each layer fibre module 32, also can be provided with described tapetum fibrosum 33.In the present embodiment, be folded with two-layer tapetum fibrosum 33 32 of three layers of fibre modules.This tapetum fibrosum 33 can make the sealing effectiveness of multi-layer fiber module 32 better.
As a kind of optional embodiment of the present invention, described fibre module 32 can be the soft fibre module.Adopt the fibre module 32 of this kind material can reduce the roller-way of furnace roller end and the frictional force between anti-material, effectively reduce the running resistance of furnace roller.Described sealing brick 31 can be the heavy roller neck brick that mould material is made.Mould material contains refractory material, thereby sealing brick 31 has good heat-resistance, can be higher than operation continuously steady in a long-term under the condition of 1200 ℃ (the highest 1280 ℃) in furnace temperature.
Other structures, principle of work and the beneficial effect of present embodiment is identical with embodiment 1, does not repeat them here.
Embodiment 3
See also shown in Fig. 5 to Fig. 7 A, embodiment of the present invention relates to quenching press 6.
Referring to Fig. 6 and shown in Figure 7, the quenching press of the embodiment of the invention, it comprises casing 61, the both sides of casing are provided with feeding mouth and discharge port respectively accordingly, be provided with a plurality of parallel quenching roller-ways 62 between feeding mouth and the discharge port, the two axial ends of each quenching roller-way 62 is connected on the casing 61, and the direction along the layout of roller-way in the casing 61 has at least two cooling sections, the first cooling section L1 is water-cooled and air-cooled cooling section, and the second cooling section L2 is the water-cooled cooling section; The bottom of casing 61 is provided with water exhaust system 63, and water exhaust system 63 is positioned at the below of roller-way 1.
Be applicable to that steel pipes such as stainless steel or heat-resisting alloy steel or steel plate enter roller hearth heat-treated furnace from the body of heater opening for feed, in stove, export from the body of heater discharge port through (tapping temperature≤1280 ℃) after heat or the solution treatment, transport through extremely short middle transition section, feeding mouth from quenching press enters quenching press immediately, steel pipe is carried by quenching roller-way 62 in quenching press, in course of conveying, finish quick cooling by at least the first cooling section and second cooling section, send from discharge port through the steel pipe of cooling cooling (temperature is reduced to below 200 ℃); Wherein, steel tube surface is carried out the water of water-cooled then from water exhaust system 63 outflows.
In the embodiment of the invention, steel pipe is through at least two cooling sections, first cooling section is water-cooled and air-cooled cooling section, and second cooling section is the water-cooled cooling section, that is to say, when steel pipe has just entered quenching press, its temperature is the highest, adopts the air-cooled type of cooling that adds water-cooled that steel tube surface is cooled off at first cooling section, and the cooling intensity of this moment is bigger, make the temperature of steel pipe obtain cooling off the most rapidly, guarantee that high-temperature steel tube obtains the required higher rate of cooling of quenching at the first cooling section L1; When treating to continue to enter second cooling section in the transportation in quenching press, only adopt the type of cooling of water-cooled that the steel tube surface that cooling is handled through the first step is carried out quench cooled, this moment, cooling intensity was less, and rate of cooling is lower.Furthermore, adopted the multiple types of cooling such as air-cooled and water-cooled that steel tube surface is evenly cooled off in the present embodiment, speed of cooling is fast, and rate of cooling consistence height makes that the tube bending distortion is little, and quenching effect is excellent.In other words, the embodiment of the invention can be quenched to the high-temperature steel tube of temperature≤1280 of coming out from heat treatment furnace ℃.
Wherein, water exhaust system 63 comprises the following aquaporin 631 of a plurality of tapers, and the bottom of following aquaporin has water port 632.Can all discharge from water port 632 via following aquaporin 631 from the water of steel tube surface cooling landing, the water of discharging from water exhaust system 63 can carry out recycling.
Quenching roller-way 62 can adopt single motor linked transmission, and type of drive is simple, transmits working stability, and failure rate is low.
As a kind of optional embodiment of the present invention, on the casing 61 its first cooling section L1 be provided with a plurality of mutual correspondences on bellows 64 and following bellows 65, last bellows 64 are positioned at the top of quenching roller-way 62, following bellows 65 are positioned at the below of quenching roller-way 62, be provided with water-cooling system on first on each between the bellows 64, be provided with water-cooling system between each time bellows 65 first time.Have 64,65, one first upper and lower water-cooling systems of two upper and lower bellows herein.
Steel pipe is on quenching roller-way 62 during through the first cooling section L1, upper and lower bellows 64,65 face toward steel tube surface in the upper and lower position and spray air cooling, the first upper and lower water-cooling system is carried out the water-cooled cooling in the upper and lower position facing to steel tube surface, be the cooling in orientation up and down of steel tube surface process, make steel tube surface obtain more effectively and rapider cooling.
Furthermore, the described first upper and lower water-cooling system includes a plurality of first water-cooled tubes 66 that are parallel to each other and are interconnected, the axis direction of each first water-cooled tube 66 is parallel with the axis direction of quenching roller-way 62, side to quench roller road 62 above first water-cooled tube 66 is provided with a plurality of nozzle (not shown), that is to say, the bottom of first water-cooled tube 66 of top is provided with nozzle, the top of first water-cooled tube 66 of below is provided with nozzle, so that the water in first water-cooled tube 66 is sprayed directly on the steel tube surface.
A plurality of nozzles can be evenly distributed along the axial direction due of first water-cooled tube 66, so that steel tube surface is evenly sprayed, and then even cooling pipe surface.Because first water-cooled tube 66 is provided with a plurality of nozzles, make the water that comes out from first water-cooled tube 66 by nozzle can with cutter type or taper spray, to be sprayed at more in large area on the steel tube surface, guarantee that water distribution is even up and down, make that steel tube surface can further obtain fully, cooling equably, rate of cooling is consistent.
Wherein, bigger in the cooling power regulation range of the first cooling section L1, can guarantee that high-temperature steel tube obtains the required higher rate of cooling of quenching at the first cooling section L1.In addition, present embodiment is applicable to the steel pipe of each specification caliber, but and long-term disposal high-temperature heat treatment steel pipe, working stability, energy efficiency, certainly, this quenching press also can cool off other steel except that steel pipe, for example steel plate.
As a kind of optional embodiment of the present invention, the position at the upper and lower of the corresponding quenching roller-way 62 of its second cooling section L2 on the casing 61 is respectively equipped with second water-cooling system.Furthermore, second water-cooling system comprises a plurality of second water-cooled tubes 67 that are parallel to each other and are interconnected, the axis direction of each second water-cooled tube 67 is parallel with the axis direction of quenching roller-way 62, and the side to quench roller road 62 above second water-cooled tube 67 is provided with a plurality of nozzle (not shown).That is to say that the bottom of second water-cooled tube 67 of top is provided with nozzle, the top of second water-cooled tube 67 of below is provided with nozzle, so that the water in second water-cooled tube 67 is sprayed directly on the steel tube surface.
Wherein, second water-cooled tube, 67 injection flow rates also can carry out regulating and controlling as required, therefore can realize the switching of cooling water inflow and the automatic adjusting of the water yield at the second cooling section L2, and its cooling power regulation range is less compared to the first cooling section L1.
As a kind of optional embodiment of the present invention, also can be provided with the 3rd cooling section L3 at the rear of the second cooling section L2 (i.e. the direction of close discharge port) on the described casing 61, the 3rd cooling section L3 is the water-cooled cooling section.The 3rd cooling section L3 sets up for fear of steel pipe still can not reach steel tube place's need under the cooling effect of first and second cooling section L1, L2 lesser temps, and it mainly plays the cooling effect to steel tube surface.
Furthermore, the position of the upper and lower of the corresponding quenching roller-way 62 of described the 3rd cooling section L3 is respectively equipped with the 3rd water-cooling system, described the 3rd water-cooling system includes a plurality of the 3rd water-cooled tubes 68 that are parallel to each other and are interconnected, the axis direction of each the 3rd water-cooled tube 68 is parallel with the axis direction of quenching roller-way 62, and the side to quench roller road 62 above the 3rd water-cooled tube 68 is provided with a plurality of nozzles.That is to say that the bottom of the 3rd water-cooled tube 68 of top is provided with nozzle, the top of the 3rd water-cooled tube 68 of below is provided with nozzle, so that the water in the 3rd water-cooled tube 68 is sprayed directly on the steel tube surface.
Wherein, it is separate that the cooling power of the chilled water modulation of the 3rd cooling section L3 and the first cooling section L1 and the second cooling section L2 is regulated, and so is more convenient for controlling the cooling degree of each cooling section.Particularly, the spray air quantity of upper and lower bellows 64,65 can carry out regulating and controlling as required, the injection flow rate of first, second and third water-cooled tube 66,67,68 also can carry out regulating and controlling respectively as required, for example the suction culvert at each water-cooled tube 66,67,68 is equipped with automatic regulating valve, to realize the automatic shutter control and the Flow-rate adjustment of water coolant, also can adopt the method for manual control that the water yield is carried out Field adjustment; In other words, make the nozzle of each water-cooled tube 66,67,68 be respectively arranged with the water-cooled nozzle of different flow, for example the nozzle flow of first, second and third water-cooled tube 66,67,68 reduces successively.Generally speaking, it is the water-cooled nozzle of low discharge that the second cooling section L2 and the 3rd cooling section L3 can make its nozzle, so that steel pipe is cooled to below 200 ℃ according to cooling curve.
In addition, upper and lower bellows 64,65 and each water-cooled tube 66,67,68 can be connected on the casing 61, and they all can realize online disassembling, assembling and replacing, and are easy to maintenance.
Referring to shown in Figure 3, according to an embodiment of the invention, be provided with sealing member 7 between the shaft end of each quenching roller-way 62 and the casing 61, sealing member 7 comprises a base plate 71, the one side of base plate 71 is provided with hollow cone-shaped body 72.Shaft end at quenching roller-way 62 is arranged with sealing-ring 73, and sealing-ring 73 is positioned at cone-shaped body 72.Because the setting of sealing member 7 makes the sealed structure optimization of quenching roller-way 62 can prevent effectively that water coolant from leaking outside, and is simple in structure; And, make things convenient for quenching roller-way 62 from casing 61, to remove, be convenient to change quenching roller-way 62, maintenance cost is low.
Furthermore, when assembling, base plate 71 is resisted against on the casing 61, and the lower rim of mist exhausting cover 83 then is fitted on the edge of base plate 71 tops, then with screw casing 61, base plate 71 and mist exhausting cover 83 is linked together; The upper limb of following aquaporin 631 then is fitted on the edge of base plate 71 belows, then with screw casing 61, base plate 71 and following aquaporin 631 is linked together.So make and relative sealed space of the interior formation of quenching press can prevent effectively that water coolant from leaking outside.
As a kind of optional embodiment of the present invention, the top of described casing 61 is provided with fog discharge system 8.Fog discharge system 8 comprises fog discharge blower fan 81, fog discharge passage 82 and mist exhausting cover 83, and mist exhausting cover 83 is set directly at the top of casing 61, is positioned at the top of each water-cooled tube, and fog discharge passage 82 is communicated with mist exhausting cover 83, and fog discharge blower fan 81 is connected an end of fog discharge passage 82.Under the effect of fog discharge blower fan 81, the aerosol that produces when steel pipe cools off in the quenching press is discharged from fog discharge passage 82 through the guiding of mist exhausting cover 83 again, to improve Working environment, improves service life of equipment.In the present embodiment, fog discharge system 8 adopts independently fog discharge blower fan 81, makes fog discharge effective, and control device is flexible.In other words, quenching press adopts independent fog discharge system 8 and water exhaust system 63, can be equipped with automatic control system respectively, and is provided with to detect and a plurality ofly sets up database with real-time monitoring record quenching press water coolant return water temperature, is convenient to optimal control.
Described casing 61 is provided with quenching sealing curtain 9 at its feeding mouth place.Quenching sealing curtain 9 structures are lightly simple and practical, and the aqueous vapor in the time of can effectively preventing to quench is excessive, avoid influencing the work and the life-span of relevant oil (gas) filling device.
On casing 61, also several vision slits can be set, to realize real-time monitored, preventing effectively that when closing water coolant from leaking outside to steel pipe situation in the quenching press.
The embodiment of the invention also can cooperate the proprietary Controlling System of one-level and secondary, adopts control flow, quenching press is controlled in real time, and set up database, optimizes the flow control level targetedly.
Other structures, principle of work and the beneficial effect of present embodiment is identical with embodiment 1 and/or embodiment 2, does not repeat them here.
The above only is several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the embodiment of the invention and do not break away from the spirit and scope of the present invention according to application documents are disclosed.
Claims (25)
1. solution heat treatment furnace, it comprises interconnective roller hearth heat-treated furnace and quenching press; It is characterized in that described roller hearth heat-treated furnace comprises:
Furnace body is provided with furnace wall around it, is provided with body of heater opening for feed and body of heater discharge port respectively accordingly at the two relative side positions of described furnace body;
A plurality of furnace roller devices, it is arranged between body of heater opening for feed and the body of heater discharge port abreast, the two ends of each furnace roller device seal by seal modules and are arranged in the furnace wall, each furnace roller device comprises the water-cooled back shaft and the body of roll, the water-cooled back shaft is provided with cooling-water duct, the body of roll has the cavity of axial perforation, and described water-cooled back shaft is by described cavity and through the inside of the described body of roll, and the described body of roll be rotation setting synchronously with described water-cooled back shaft; Form accommodation space between the outer wall of described water-cooled back shaft and the inwall of the described body of roll, parallel vertically and compartment of terrain is provided with a plurality of supporting components in described accommodation space, one side of described supporting component is connected with the outer wall of described water-cooled back shaft, has predetermined gap between its opposite side and the described body of roll inwall.
2. solution heat treatment furnace according to claim 1, it is characterized in that, each described supporting component is by constituting perpendicular to equally distributed at least two back-up blocks on the axial same circumferential plane of water-cooled back shaft, one side of described back-up block is connected with described water-cooled back shaft, has described predetermined gap between its opposite side and the described body of roll inwall.
3. solution heat treatment furnace according to claim 2 is characterized in that, a side that is connected with described water-cooled back shaft at described back-up block offers the slotted eye that axially connects along described water-cooled back shaft.
4. solution heat treatment furnace according to claim 3 is characterized in that, the setting along the circumferential direction interlaced with each other of the back-up block of two adjacent described supporting components.
5. solution heat treatment furnace according to claim 1 is characterized in that, is installed with supporting cup respectively at the both ends of the described body of roll, and described supporting cup and described water-cooled back shaft are key connecting.
6. solution heat treatment furnace according to claim 5 is characterized in that, the both sides of the supporting cup of an end of the described body of roll are provided with limit baffle ring.
7. solution heat treatment furnace according to claim 5 is characterized in that, respectively along circumferentially laying groove, and the groove of ring side and the groove of outer rim side are crisscross arranged in a circumferential direction in described in the interior ring side of described supporting cup and outer rim side.
8. solution heat treatment furnace according to claim 1 is characterized in that, is provided with the thermofin that is formed by heat insulation medium in described accommodation space, and described heat insulation medium is ceramic fiber, silica fiber or glass fibre.
9. solution heat treatment furnace according to claim 1 is characterized in that, the material of described water-cooled back shaft is a structural carbon steel, and the material of the described body of roll is a Heat resisting cast steel.
10. solution heat treatment furnace according to claim 1 is characterized in that the two ends of the described body of roll are arranged in the described furnace wall.
11. according to any described solution heat treatment furnace of claim 1 to 10, it is characterized in that, described seal modules comprises the sealing brick, described sealing brick is arranged in the described furnace wall, the inside of described sealing brick has communicating pores, in described communicating pores, in axial direction be provided with the multi-layer fiber module, the end of described furnace roller device is located in the described multi-layer fiber module, an end that passes described sealing brick in the end of described furnace roller device is provided with tapetum fibrosum, and described tapetum fibrosum sealing is arranged between the end of described sealing brick and described furnace roller device.
12. solution heat treatment furnace according to claim 11 is characterized in that, described multi-layer fiber module is provided with perforate, and the end of described furnace roller device is located in the described perforate, and the inner side-wall of described perforate matches with the outline of the end of described furnace roller device.
13. solution heat treatment furnace according to claim 12 is characterized in that, is provided with described tapetum fibrosum between each layer fibre module.
14. solution heat treatment furnace according to claim 12 is characterized in that, described fibre module is the soft fibre module, and described sealing brick is the heavy roller neck brick that mould material is made.
15. solution heat treatment furnace according to claim 11 is characterized in that, the body of heater opening for feed of described roller hearth heat-treated furnace and body of heater discharge port place are provided with sealing curtain and/or fire door respectively.
16. according to any described solution heat treatment furnace of claim 1 to 10, it is characterized in that, described quenching press comprises casing, the both sides of casing are provided with feeding mouth and discharge port respectively accordingly, be provided with a plurality of parallel quenching roller-ways between feeding mouth and the discharge port, the two axial ends of each quenching roller-way is connected on the casing, direction along the layout of quenching roller-way in the described casing has at least two cooling sections, first cooling section is water-cooled and air-cooled cooling section, and second cooling section is the water-cooled cooling section; The bottom of described casing is provided with water exhaust system, and water exhaust system is positioned at the below of quenching roller-way.
17. solution heat treatment furnace according to claim 16, it is characterized in that, on the described casing its first cooling section be provided with a plurality of mutual correspondences on bellows and following bellows, last bellows are positioned at the top of quenching roller-way, following bellows are positioned at the below of quenching roller-way, be provided with water-cooling system on first on each between the bellows, be provided with water-cooling system between each time bellows first time.
18. solution heat treatment furnace according to claim 17, it is characterized in that, the described first upper and lower water-cooling system includes a plurality of first water-cooled tubes that are parallel to each other and are interconnected, the axis direction of each first water-cooled tube is parallel with the axis direction of described quenching roller-way, and the side to the quench roller road above first water-cooled tube is provided with a plurality of nozzles.
19. solution heat treatment furnace according to claim 17 is characterized in that, the position at the upper and lower of the corresponding described quenching roller-way of its second cooling section on the described casing is respectively equipped with second water-cooling system.
20. solution heat treatment furnace according to claim 19, it is characterized in that, described second water-cooling system comprises a plurality of second water-cooled tubes that are parallel to each other and are interconnected, the axis direction of each second water-cooled tube is parallel with the axis direction of described quenching roller-way, and the side to the quench roller road above second water-cooled tube is provided with a plurality of nozzles.
21. solution heat treatment furnace according to claim 16 is characterized in that, the rear at second cooling section on the described casing also is provided with the 3rd cooling section, and the 3rd cooling section is the water-cooled cooling section.
22. solution heat treatment furnace according to claim 21, it is characterized in that, the position of the upper and lower of the corresponding described quenching roller-way of described the 3rd cooling section is respectively equipped with the 3rd water-cooling system, described the 3rd water-cooling system includes a plurality of the 3rd water-cooled tubes that are parallel to each other and are interconnected, the axis direction of each the 3rd water-cooled tube is parallel with the axis direction of described quenching roller-way, and the side to the quench roller road above the 3rd water-cooled tube is provided with a plurality of nozzles.
23. solution heat treatment furnace according to claim 16 is characterized in that, is provided with sealing member between the shaft end of each quenching roller-way and the casing, sealing member comprises a base plate, and the one side of base plate is provided with hollow cone-shaped body; Shaft end at the quenching roller-way is arranged with sealing-ring, and sealing-ring is positioned at cone-shaped body.
24. solution heat treatment furnace according to claim 16, it is characterized in that, the top of described casing is provided with the fog discharge system, the fog discharge system comprises fog discharge blower fan, fog discharge passage and mist exhausting cover, mist exhausting cover is arranged on the top of casing, fog discharge channel connection mist exhausting cover, fog discharge blower fan are connected an end of fog discharge passage.
25. solution heat treatment furnace according to claim 16 is characterized in that, described casing is provided with the quenching sealing curtain at its feeding mouth place; Described water exhaust system comprises the following aquaporin of a plurality of tapers, and the bottom of following aquaporin has water port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110028313A CN102061367B (en) | 2011-01-26 | 2011-01-26 | Solid solution heat treatment furnace |
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| CN201110028313A CN102061367B (en) | 2011-01-26 | 2011-01-26 | Solid solution heat treatment furnace |
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| CN102061367B CN102061367B (en) | 2012-10-03 |
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| CN102618716A (en) * | 2012-04-18 | 2012-08-01 | 武汉钢铁(集团)公司 | High-temperature furnace roller for CSP (Compact Strip Production) heating furnace |
| WO2012100414A1 (en) * | 2011-01-26 | 2012-08-02 | 中冶京诚工程技术有限公司 | Solid solution heat treatment surnace |
| WO2013071830A1 (en) * | 2011-11-16 | 2013-05-23 | Yang Guiling | Roller way type solar cell silicon wafer sintering furnace |
| CN105486082A (en) * | 2014-09-19 | 2016-04-13 | 鞍钢股份有限公司 | Cold air preventing device and method for heating furnace |
| CN108195193A (en) * | 2018-02-02 | 2018-06-22 | 佛山高砂工业窑炉有限公司 | A kind of air hermetic roller kilns heating of displacement room and drain structure |
| CN110398153A (en) * | 2019-08-20 | 2019-11-01 | 四川众友联合实业有限公司 | A kind of energy-efficient melting furnace feeding assembly |
| CN110564947A (en) * | 2019-10-12 | 2019-12-13 | 宝钢工程技术集团有限公司 | Furnace roller supporting device |
| WO2020191841A1 (en) * | 2019-03-22 | 2020-10-01 | 福建鼎信科技有限公司 | Heat insulation and protection device for strip steel continuous annealing furnace |
| CN112094990A (en) * | 2020-09-07 | 2020-12-18 | 刘坚城 | Quenching and tempering process and device for high-strength stainless steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012100414A1 (en) * | 2011-01-26 | 2012-08-02 | 中冶京诚工程技术有限公司 | Solid solution heat treatment surnace |
| WO2013071830A1 (en) * | 2011-11-16 | 2013-05-23 | Yang Guiling | Roller way type solar cell silicon wafer sintering furnace |
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| CN105486082A (en) * | 2014-09-19 | 2016-04-13 | 鞍钢股份有限公司 | Cold air preventing device and method for heating furnace |
| CN108195193A (en) * | 2018-02-02 | 2018-06-22 | 佛山高砂工业窑炉有限公司 | A kind of air hermetic roller kilns heating of displacement room and drain structure |
| CN108195193B (en) * | 2018-02-02 | 2024-02-13 | 佛山高砂工业窑炉有限公司 | Air-tight type displacement chamber heating and draining structure for roller kiln |
| WO2020191841A1 (en) * | 2019-03-22 | 2020-10-01 | 福建鼎信科技有限公司 | Heat insulation and protection device for strip steel continuous annealing furnace |
| CN110398153A (en) * | 2019-08-20 | 2019-11-01 | 四川众友联合实业有限公司 | A kind of energy-efficient melting furnace feeding assembly |
| CN110398153B (en) * | 2019-08-20 | 2024-06-11 | 四川众友联合实业有限公司 | Energy-efficient melting furnace feeding subassembly |
| CN110564947A (en) * | 2019-10-12 | 2019-12-13 | 宝钢工程技术集团有限公司 | Furnace roller supporting device |
| CN112094990A (en) * | 2020-09-07 | 2020-12-18 | 刘坚城 | Quenching and tempering process and device for high-strength stainless steel |
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| CN102061367B (en) | 2012-10-03 |
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