CN201942706U - Layout structure for heaters on bearing steel isothermal spheroidizing annealing furnace - Google Patents
Layout structure for heaters on bearing steel isothermal spheroidizing annealing furnace Download PDFInfo
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- CN201942706U CN201942706U CN2010206522695U CN201020652269U CN201942706U CN 201942706 U CN201942706 U CN 201942706U CN 2010206522695 U CN2010206522695 U CN 2010206522695U CN 201020652269 U CN201020652269 U CN 201020652269U CN 201942706 U CN201942706 U CN 201942706U
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- bearing steel
- roll group
- live roll
- chamber
- heat
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Abstract
The utility model discloses a layout structure for heaters on a bearing steel isothermal spheroidizing annealing furnace. Bearing steel on a two-layer transmission roller set enters into a furnace chamber from a front furnace mouth and a rear furnace mouth and makes opposite transmit; the heaters are arranged in a diagonal symmetrical way, the arrangement of the heaters can guarantee that the bearing steel on the two-layer transmission roller set is heated, warmed and isothermally treated uniformly and can guarantee the annealing treatment effect of the two-layer two-direction bearing steel; if the high-temperature bearing steel is to be sent out of the furnace mouth through one layer of transmission roller of the two-layer transmission roller set, i.e. goes out of an isothermal room and into a waste heat recycle heat exchange room, the atmospheric-temperature bearing steel (also called cold materials) is just sent into the furnace mouth through the other layer of transmission roller of the two-layer transmission roller set, the high-temperature bearing steel and the atmospheric-temperature bearing steel can exchange heat with each other, the atmospheric-temperature bearing steel is warmed and the heat of the high-temperature bearing steel is recycled, and the atmospheric-temperature bearing steel need less heat when in the isothermal room to be entered, therefore, the energy is saved; in a middle cooling room, the high-temperature bearing steel from a heating warm-keeping room is cooled through coolers, now the high-temperature bearing steel and the low-temperature bearing steel on the two-layer transmission roller set can also exchange heat with each other, therefore, the requirement on the heat in the heating warm-keeping room that the low-temperature bearing steel to be entered is lowered, the energy is saved, and waste of the heat is decreased.
Description
Technical field
The utility model relates to the arrangement of bearing steel isothermal spheroidizing furnace upper heater.
Background technology
On the existing bearing steel isothermal spheroidizing furnace, be provided with the individual layer live roll group that is used for the transmission bearing steel in the burner hearth, bearing steel is on live roll, successively through heating, insulation, air cooling, isothermal, slow cooling, finish the isothermal spheroidizing technology of bearing steel, wherein heating, insulation, the isothermal process step needs well heater, the layout of well heater is to influence very important factor of anneal effect, existing well heater is arranged in the upper and lower of individual layer live roll group, the bearing steel that annealing is finished reaches 550 ℃ usually, after the output, also need cool off from burner hearth, below 550 ℃, can not exert an influence to bearing steel material Spheroidizing Annealing tissue, but bearing steel still has very big thermal capacity, a large amount of heat energy will be wasted with the cooling of material, not only waste heat energy, also contaminate environment.
Summary of the invention
The purpose of this utility model provides double-layer double-direction bearing steel isothermal spheroidizing furnace upper heater and is the symmetric arrangement of diagonal lines, diagonal lines symmetric arrangement by well heater, guarantee the bearing steel anneal effect of annealing furnace double-layer double-direction, also helped annealing furnace to reach energy-conservation effect.
For achieving the above object, the technical solution adopted in the utility model is: the arrangement of bearing steel isothermal spheroidizing furnace upper heater, the end had the body of heater of fire door before and after described bearing steel isothermal spheroidizing furnace was included in, described body of heater inside has the burner hearth that is connected with the described fire door of end, front and back, in described burner hearth, be provided with the two-layer live roll group up and down that is used for the described bearing steel of horizontal feed between the fire door of end, described front and back, the described horizontal feed direction of two-layer live roll group up and down is opposite, every layer of live roll group comprises a plurality of live rolls that are provided with separately along the fore-and-aft direction of described body of heater, the axial line homogeneous phase of described a plurality of live rolls is arranged in the same horizontal plane abreast, and it is perpendicular with the horizontal feed direction of described bearing steel, on the fore-and-aft direction of described body of heater, described burner hearth is divided into the heat tracing chamber that is in central authorities, from the close-by examples to those far off be arranged on the middle cold house on both sides, described heat tracing chamber successively symmetrically, isothermal chamber, be used to keep supplying down high-temperature bearing steel that comes out from described isothermal chamber on the two-layer live roll group and the waste heat recovery heat exchange chamber that carries out heat exchange from the normal temperature bearing steel that fire door enters, described heat tracing chamber, in the described isothermal chamber all above the live roll group of upper strata, the below of lower floor's live roll group is provided with well heater, described well heater is the diagonal lines symmetry according to the center of described heat tracing chamber, be provided with water cooler in the cold house in described, described water cooler is near one deck live roll group setting of the bearing steel that is used to accept to come out from described heat tracing chamber, away from one deck live roll group setting in addition.
Preferably, stretch into the fan blade that is useful on the blower fan that quickens heat exchange in the described waste heat recovery heat exchange chamber.
Preferably, be the diagonal lines symmetry at water cooler described in the described burner hearth according to the center of described heat tracing chamber.
Preferably, the fire door rear of fire door the place ahead of leading section, rearward end is provided with and is used for sending into bearing steel or sending the levels material roller platform of bearing steel from described fire door to described fire door on the described body of heater, described body of heater forward-and-rearward material roller platform is connected mutually with the live roll group of equivalent layer, form material and transmit passage, the delivery direction that the described material of levels transmits passage is opposite.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: this annealing furnace can be handled bearing steel by double-layer double-direction, two-layer up and down live roll group head bearing steel enters in the burner hearth from the front and back fire door respectively, do rightabout transmission, the diagonal lines symmetric arrangement of well heater, guaranteed the heat tracing of two-layer live roll group head bearing steel up and down, isothermal processes is consistent, guaranteed the bearing steel anneal effect of double-layer double-direction, if two-layer live roll group wherein transmits the high-temperature bearing steel that will send fire door on one deck live roll group so up and down, promptly come out to enter the waste heat recovery heat exchange chamber from isothermal chamber, what transmit on then other one deck live roll group is the normal temperature bearing steel (being called cold burden again) of just having sent into fire door, high-temperature bearing steel and normal temperature bearing steel can carry out heat exchange, the normal temperature bearing steel heats up, reclaimed the heat of the high-temperature bearing steel that originally will slattern, and reduced the follow-up heat that isothermal chamber needs that enters, reach energy-conservation effect, in middle cold house, water cooler can cool off the high-temperature bearing steel that comes out from the heat tracing chamber, also can carry out heat exchange between high-temperature bearing steel on the levels live roll group and the cryogenic bearing steel at this moment, reclaimed the heat of high-temperature bearing steel, the cryogenic bearing steel is heated up, reduced the follow-up requirement that enters heat tracing chamber institute heat requirement of cryogenic bearing steel, energy-conservation further, reduced the waste of heat.
Description of drawings
Accompanying drawing 1 is for having the synoptic diagram of annealing furnace of the present utility model, and wherein isothermal chamber, heat tracing chamber, levels material roller platform have all adopted the length elliptical technique of painting;
The temperature variation synoptic diagram of accompanying drawing 2 for having annealing furnace of the present utility model different process section in the bearing steel annealing process, wherein solid line represents that bearing steel enters on the live roll group of upper strata from the rearward end fire door, and dotted line represents that bearing steel enters on lower floor's live roll group from the leading section fire door.
Embodiment
Further set forth the utility model below in conjunction with accompanying drawing.
Referring to shown in Figure 1, the bearing steel isothermal spheroidizing furnace, the end has the body of heater 1 of fire door 2 before and after being included in, body of heater 1 inside has the burner hearth 3 that is connected with the fire door 2 of end, front and back, bearing steel enters in the burner hearth 3 from the fire door 2 of an end, after the annealed processing, fire door 2 outputs from the other end, in Fig. 1, before viewer's left side is defined as, after the right side is defined as, in burner hearth 3, be provided with the two-layer live roll group 4 and 5 up and down that is used for horizontal feed bearing steel between the fire door 2 of end, front and back, fire door 2 the place aheads of leading section on the body of heater 1, fire door 2 rears of rearward end are provided with levels material roller platform 6 and 7, this levels material roller platform 6 and 7 is used for sending into bearing steel or sending bearing steel from fire door to fire door 2, body of heater 1 forward-and-rearward topper material roller platform 6 is connected mutually with upper strata live roll group 4, form upper materials and transmit passage, correspondingly, body of heater 1 forward-and-rearward lower floor material roller platform 7 and lower floor's live roll group 5 linkings mutually, form lower floor's material and transmit passage, the delivery direction that the levels material transmits passage is opposite.By Fig. 1, in the front portion of body of heater 1, bearing steel enters the fire door 2 from lower floor's material roller platform 7, then the while is at the rear portion of body of heater 1, bearing steel enters the fire door 2 from topper material roller platform 6, and the bearing steel that the levels material transmits in the passage is done to move in opposite directions, carries out anneal.
In Fig. 1, every layer of live roll group 4 or 5 comprises a plurality of live rolls that are provided with separately along the fore-and-aft direction of body of heater 1, and the axial line homogeneous phase of these a plurality of live rolls is arranged in the same horizontal plane abreast, and perpendicular with the horizontal feed direction of bearing steel.
On the fore-and-aft direction of body of heater 1, burner hearth 3 is divided into the heat tracing chamber 14 that is in central authorities, from the close-by examples to those far off be arranged on the middle cold house 13 on both sides, described heat tracing chamber successively symmetrically, isothermal chamber 12, waste heat recovery heat exchange chamber 11, heat tracing chamber 14, in the isothermal chamber 12 all above upper strata live roll group 4, the below of lower floor's live roll group 5 is provided with well heater 8, this well heater 8 can adopt the burner of torch firing flame, perhaps adopt electrical heating wire, well heater 8 is the diagonal lines symmetry according to the center of heat tracing chamber 14 in burner hearth 3, be provided with water cooler 9 in the middle cold house 13, this water cooler 9 is near one deck live roll group setting of the bearing steel that is used to accept to come out from heat tracing chamber 14, away from one deck live roll group setting in addition.Stretch into the fan blade 10 that is useful on the blower fan that quickens heat exchange in the waste heat recovery heat exchange chamber 11, this fan blade 10 is used to keep supplying down the high-temperature bearing steel that comes out from isothermal chamber 12 on the two-layer live roll group and carries out heat exchange from the normal temperature bearing steel that fire door 2 enters.
But the annealing furnace double-layer double-direction among Fig. 1 transmits material continuously, carry out anneal, Fig. 2 has shown the temperature variation synoptic diagram of different process section in the annealing furnace, this different process section is followed successively by waste heat recovery heat exchange chamber 11, isothermal chamber 12, middle cold house 13, heat tracing chamber 14, middle cold house 13, isothermal chamber 12, waste heat recovery heat exchange chamber 11, front portion at body of heater 1, bearing steel enters in the burner hearth 3 by fire door 2 from lower floor's material roller platform 7, by lower floor's live roll group 5 by transmitting behind the forward direction, at first enter in the waste heat recovery heat exchange chamber 11, will send on the upper strata live roll group 4 on the bearing steel of fire door 2 and have a large amount of heats, fan blade 10 by blower fan, in waste heat recovery heat exchange chamber 11 with lower floor live roll group 5 on normal temperature bearing steel (being called cold burden again) carry out heat exchange, the intensification of being heated of bearing steel on lower floor's live roll group 5, bearing steel cooling on the upper strata live roll group 4, bearing steel on the upper strata live roll group 4 is after fire door 2 outputs then, carry by topper material roller platform 6, can carry out heat exchange this moment with the cold burden on the lower floor's material roller platform 7 that will send in the fire door 2, cold burden on lower floor's material roller platform 7 is carried out preliminary heat treated, further reclaimed the heat on the bearing steel on the topper material roller platform 6, at waste heat recovery heat exchange chamber 11, after bearing steel on lower floor's live roll group 5 is heated and heats up, enter isothermal chamber 12, by the well heater in the isothermal chamber 12 8, bearing steel on levels live roll group 4 and 5 all is incubated processing, bearing steel on lower floor's live roll group 5 is after process isothermal chamber 12, cold house 13 in entering, in middle cold house 13, water cooler 9 is arranged on the top of upper strata live roll group 4, can the bearing steel that come out from heat tracing chamber 14 on the upper strata live roll group 4 be cooled off by water cooler 9 like this, bearing steel cooling on the upper strata live roll group 4, bearing steel on the upper strata live roll group 4 and the bearing steel on lower floor's live roll group 5 carry out heat exchange simultaneously, make the bearing steel on lower floor's live roll group 5 heat up, then the bearing steel on lower floor's live roll group 5 enters heat tracing chamber 14, all carrying out heat tracing by the bearing steel on 8 pairs of levels live rolls of the well heater in the heat tracing chamber 14 group 4 and 5 handles, bearing steel on lower floor's live roll group 5 is behind process heat tracing chamber 14, cold house 13 in entering, the water cooler 9 of cold house 13 is arranged on the below of lower floor's live roll group 5 in this moment, can the bearing steel on lower floor's live roll group 5 be cooled off by water cooler 9, bearing steel cooling on lower floor's live roll group 5, water cooler 9 is the diagonal lines symmetry with the center of heat tracing chamber 14 in burner hearth 3.Mention above, annealing furnace is the transmission material of double-layer double-direction, promptly at the rear portion of body of heater 1, bearing steel enters in the burner hearth 3 by fire door 2 from topper material roller platform 6, by upper strata live roll group 4 by after forward, like this, after bearing steel in middle cold house 13 on lower floor's live roll group 5 cools, bearing steel on lower floor's live roll group 5 can carry out heat exchange with the bearing steel on the upper strata live roll group 4, bearing steel on the upper strata live roll group 4 heats up, bearing steel on the upper strata live roll group 4 is followed into heat tracing chamber 14, bearing steel on lower floor's live roll group 5 can enter in the isothermal chamber 12 after therefrom coming out in the cold house 13, by the well heater in the isothermal chamber 12 8, bearing steel on levels live roll group 4 and 5 all is incubated processing, bearing steel on lower floor's live roll group 5 can enter waste heat recovery heat exchange chamber 11 then, preparation is exported from the fire door 2 of body of heater 1 rearward end, in waste heat recovery heat exchange chamber 11, fan blade 10 by blower fan, normal temperature bearing steel (being called cold burden again) on high-temperature bearing steel on lower floor's live roll group 5 and the upper strata live roll group 4 carries out heat exchange, make firm normal temperature bearing steel on the upper strata live roll group 4 of fire door 2 inputs heat up, and the cooling of the high-temperature bearing steel on lower floor's live roll group 5, reclaim heat, after bearing steel on lower floor's live roll group 5 is exported from the fire door 2 of body of heater 1 rearward end, transmit by lower floor's material roller platform 7, bearing steel on lower floor's material roller platform 7 of annealed processing can with topper material roller platform 6 on prepare to enter fire door 2 bearing steel heat-treat, further reclaimed the heat of the bearing steel on lower floor's material roller platform 7, with respect to the unidirectional annealing furnace of individual layer, this double-layer double-direction annealing furnace can be significantly energy-conservation, greatly reduced the waste of heat.
To sum up, this bearing steel isothermal spheroidizing furnace can be handled bearing steel by double-layer double-direction, two-layer up and down live roll group head bearing steel enters in the burner hearth from the front and back fire door respectively, do rightabout transmission, the diagonal lines symmetric arrangement of well heater, guaranteed the heat tracing of two-layer live roll group head bearing steel up and down, isothermal processes is consistent, guaranteed the bearing steel anneal effect of double-layer double-direction, if two-layer live roll group wherein transmits the high-temperature bearing steel that will send fire door on one deck live roll group so up and down, promptly come out to enter the waste heat recovery heat exchange chamber from isothermal chamber, what transmit on then other one deck live roll group is the normal temperature bearing steel (being called cold burden again) of just having sent into fire door, high-temperature bearing steel and normal temperature bearing steel can carry out heat exchange, the normal temperature bearing steel heats up, reclaimed the heat of the high-temperature bearing steel that originally will slattern, and reduced the follow-up heat that isothermal chamber needs that enters, reach energy-conservation effect, in middle cold house, water cooler can cool off the high-temperature bearing steel that comes out from the heat tracing chamber, also can carry out heat exchange between high-temperature bearing steel on the levels live roll group and the cryogenic bearing steel at this moment, reclaimed the heat of high-temperature bearing steel, the cryogenic bearing steel is heated up, reduced the follow-up requirement that enters heat tracing chamber institute heat requirement of cryogenic bearing steel, energy-conservation further, reduced the waste of heat.
Claims (4)
1. the arrangement of bearing steel isothermal spheroidizing furnace upper heater, the end had the body of heater of fire door before and after described bearing steel isothermal spheroidizing furnace was included in, described body of heater inside has the burner hearth that is connected with the described fire door of end, front and back, it is characterized in that: in described burner hearth, be provided with the two-layer live roll group up and down that is used for the described bearing steel of horizontal feed between the fire door of end, described front and back, the described horizontal feed direction of two-layer live roll group up and down is opposite, every layer of live roll group comprises a plurality of live rolls that are provided with separately along the fore-and-aft direction of described body of heater, the axial line homogeneous phase of described a plurality of live rolls is arranged in the same horizontal plane abreast, and it is perpendicular with the horizontal feed direction of described bearing steel, on the fore-and-aft direction of described body of heater, described burner hearth is divided into the heat tracing chamber that is in central authorities, from the close-by examples to those far off be arranged on the middle cold house on both sides, described heat tracing chamber successively symmetrically, isothermal chamber, be used to keep supplying down high-temperature bearing steel that comes out from described isothermal chamber on the two-layer live roll group and the waste heat recovery heat exchange chamber that carries out heat exchange from the normal temperature bearing steel that fire door enters, described heat tracing chamber, in the described isothermal chamber all above the live roll group of upper strata, the below of lower floor's live roll group is provided with well heater, described well heater is the diagonal lines symmetry according to the center of described heat tracing chamber, be provided with water cooler in the cold house in described, described water cooler is near one deck live roll group setting of the bearing steel that is used to accept to come out from described heat tracing chamber, away from one deck live roll group setting in addition.
2. the arrangement of well heater according to claim 1 is characterized in that: stretch into the fan blade that is useful on the blower fan that quickens heat exchange in the described waste heat recovery heat exchange chamber.
3. the arrangement of well heater according to claim 1 is characterized in that: be the diagonal lines symmetry at water cooler described in the described burner hearth according to the center of described heat tracing chamber.
4. the arrangement of well heater according to claim 1, it is characterized in that: the fire door rear of fire door the place ahead of leading section, rearward end is provided with and is used for sending into bearing steel or sending the levels material roller platform of bearing steel from described fire door to described fire door on the described body of heater, described body of heater forward-and-rearward material roller platform is connected mutually with the live roll group of equivalent layer, form material and transmit passage, the delivery direction that the described material of levels transmits passage is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206522695U CN201942706U (en) | 2010-12-10 | 2010-12-10 | Layout structure for heaters on bearing steel isothermal spheroidizing annealing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206522695U CN201942706U (en) | 2010-12-10 | 2010-12-10 | Layout structure for heaters on bearing steel isothermal spheroidizing annealing furnace |
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| CN201942706U true CN201942706U (en) | 2011-08-24 |
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| CN2010206522695U Expired - Lifetime CN201942706U (en) | 2010-12-10 | 2010-12-10 | Layout structure for heaters on bearing steel isothermal spheroidizing annealing furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002563A (en) * | 2010-12-10 | 2011-04-06 | 苏州中门子科技有限公司 | Arranging structure of heaters on bearing-steel isothermal spheroidized annealing furnace |
| WO2020114171A1 (en) * | 2018-12-04 | 2020-06-11 | 苏州中门子工业炉科技有限公司 | Dual-layer isothermal spheroidizing annealing heat treatment device for bearing steal bar pipe material |
-
2010
- 2010-12-10 CN CN2010206522695U patent/CN201942706U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002563A (en) * | 2010-12-10 | 2011-04-06 | 苏州中门子科技有限公司 | Arranging structure of heaters on bearing-steel isothermal spheroidized annealing furnace |
| CN102002563B (en) * | 2010-12-10 | 2012-06-27 | 苏州中门子科技有限公司 | Arranging structure of heaters on bearing-steel isothermal spheroidized annealing furnace |
| WO2020114171A1 (en) * | 2018-12-04 | 2020-06-11 | 苏州中门子工业炉科技有限公司 | Dual-layer isothermal spheroidizing annealing heat treatment device for bearing steal bar pipe material |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20120627 |