CN103898287A - Annular heating furnace for spheroidizing annealing production line - Google Patents
Annular heating furnace for spheroidizing annealing production line Download PDFInfo
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- CN103898287A CN103898287A CN201210586372.8A CN201210586372A CN103898287A CN 103898287 A CN103898287 A CN 103898287A CN 201210586372 A CN201210586372 A CN 201210586372A CN 103898287 A CN103898287 A CN 103898287A
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Abstract
The invention relates to a heat treatment furnace and particularly relates to an annular heating furnace for a spheroidizing annealing production line. The annular heating furnace for the spheroidizing annealing production line comprises an annular heating furnace body and a radiation tube inserted into the heating furnace body from the top, and a furnace door is formed on one side of the heating furnace body; a rotating furnace bottom is further arranged at the bottom of the heating furnace body, and a rotary support body is arranged below the rotating furnace bottom. The rotating furnace bottom of the heat treatment furnace provided by the invention can realize rotating connection with the furnace body under the action of the rotary support body at the bottom, heating and heat preservation stages in the heat treatment process of a workpiece are performed under rotation, the uniformity in heating of the workpiece can be greatly improved, and guarantee is further provided for improving the heat treatment quality and the consistency of different workpiece structures and performances.
Description
Technical field
The present invention relates to a kind of heat treatment furnace, relate in particular to a kind of Spheroidizing Annealing production line rotary heating furnace.
Background technology
Metal heat treatmet is that metal works is placed on and in certain medium, is heated to suitable temperature, and keep after certain hour in this temperature, cooling in different media with friction-motion speed again, control a kind of technique of its performance by changing metal material surface or inner microstructure.Isothermal spheroidizing is hypereutectoid steel (as bearing steel) starting material (bar, wire rod etc.) or the conventional thermal treatment process of part blank, can reduce hardness on the one hand, improve cutting ability, for machining is prepared, the spheroidized carbide of disperse on the other hand in order to obtain carefully, do tissue for subsequent heat treatment (quenching, tempering) and prepare, to obtain good mechanical property after subsequent heat treatment, improve thermal treatment qualification rate.
Heat treatment heating furnace is one of requisite equipment of metal heat treatmet, and existing process furnace mostly is car type furnace, box-type furnace or pit furnace, these Bottom of Heating Furnaces are all fixed, can not rotate, and different zones temperature can there are differences in same stove, will cause the ununiformity of workpiece heating, thereby bring different workpieces may have the difference of tissue and performance, affect thermal treatment quality.In addition, when conventional process furnace workpiece is come out of the stove, bell need to be removed, by driving, the workpiece under high temperature be moved on to other places and carry out next step thermal treatment, the threat that not only high temperature workpiece can bring to workman life and health in this process, and high temperature workpiece is aloft transferred, will inevitably bring a large amount of energy expenditures, workpiece temperature in handover process declines on the one hand, can affect thermal treatment quality, also to have labor strength large for traditional heating stove on the other hand, the low inferior shortcoming of production efficiency.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, provide a kind of homogeneous heating, thermal treatment quality good, the Spheroidizing Annealing production line process furnace that level of automation is high.
The technical scheme that realizes the object of the invention is: a kind of Spheroidizing Annealing production line rotary heating furnace, and there is annular-heating furnace body and be inserted into the intrinsic radiator tube of process furnace from top, described process furnace body one side has fire door; At the bottom of described process furnace body bottom has rotary furnace, under described rotary furnace, face is provided with rotary support.
Technique scheme, described process furnace body interior has annular working platform, and described annular working platform inner side is fixed with high temperature with fire door corresponding position and pushes away chain.
Technique scheme, described process furnace body top is provided with forced circulation device.
Technique scheme, described forced circulation device is many oil cooling air-circulating fans, described oil cooling air-circulating fan is distributed on process furnace body upper end.
Technique scheme, described process furnace body top is provided with thermopair, and described thermopair is connected with extraneous temperature controlling system.
Technique scheme, described process furnace bodies top is also provided with protective atmosphere inlet pipe, and described protective atmosphere inlet pipe one end is connected with outer protection gas, and the other end stretches to process furnace body interior.
Technique scheme, process furnace body exterior is provided with 1 ~ 3 access door.
Adopt after technique scheme, the present invention has following positive effect:
(1) at the bottom of the present invention is provided with rotary furnace, at the bottom of rotary furnace, under the effect of the rotary support of bottom, can realize and being rotationally connected with body of heater, heating, holding stage in heat treatment of workpieces process are all carried out under rotating, can increase substantially the homogeneity of workpiece heating, for improving thermal treatment quality, and the consistence of different workpieces tissue and performance provides guarantee;
(2) high temperature being fixed with in body of heater of the present invention pushes away chain, for automatically being pushed to process furnace and processed high temperature workpiece is pushed to rapid cooling chamber fast from the rapid cooling chamber of same production line, pending workpiece carries out rapid cooling, can greatly reduce labor strength, enhance productivity, can also ensure to start rapid cooling under specified temperature, ensure thermal treatment quality;
(3) process furnace upper end is provided with multiple forced circulation devices, i.e. oil cooling air-circulating fan can be strengthened the pump circulation of furnace gas, guarantees hot-fluid and airflow homogeneity in stove, thereby ensures the homogeneity of workpiece heating;
(4) thermopair at body of heater of the present invention top and extraneous temperature control system can be monitored at any time to temperature in stove, and automatically carry out temperature control, have further ensured thermal treatment quality; In heating and thermal insulation process, protective atmosphere (as nitrogen) enters in body of heater by protective atmosphere inlet pipe, has prevented oxidation and decarbonization under workpiece high temperature;
(5) body of heater outside is provided with access door, when maintenance, opens, and when stove work, closes, and facilitates the maintenance and inspection of stove.
Brief description of the drawings
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is vertical view of the present invention;
Fig. 2 is A-A face sectional view of the present invention;
In figure 1, process furnace body; 11, fire door; 12, annular working platform; 2, at the bottom of rotary furnace; 21, rotary support; 3, high temperature pushes away chain; 4, oil cooling air-circulating fan; 5, thermopair; 6, radiator tube; 7, protective atmosphere inlet pipe; 8, access door.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the present invention has annular-heating furnace body 1 and is inserted into the radiator tube 6 in process furnace body 1 from top, and radiator tube 6 is for intensification, heating and the insulation of stove, and process furnace body 1 one sides have fire door 11; Process furnace body 1 bottom has at the bottom of rotary furnace 2, and at the bottom of rotary furnace, 2 are provided with rotary support 21 below, and in working process, at the bottom of rotary furnace, 2 can rotate around rotary support 21, ensure workpiece heating uniformity.
Preferably, process furnace body 1 inside has annular working platform 12, and annular working platform 12 inner sides and fire door 11 corresponding positions are fixed with high temperature and push away chain 3, and high temperature pushes away chain 3 and can be used for workpiece to push or release process furnace.
Preferably, top of the present invention is also provided with forced circulation device, i.e. many oil cooling air-circulating fans 4, and oil cooling air-circulating fan 4 is distributed on process furnace body 1 upper end, the rotation of oil cooling air-circulating fan 4 bottom fan blade can drive the circulation of the interior hot-fluid of stove or air-flow, has further strengthened temperature homogeneity in stove.
Preferably, process furnace body 1 top is provided with thermopair 5, and thermopair 5 is connected with extraneous temperature controlling system, for thermometric in stove and and temperature in stove is regulated in good time.Process furnace body 1 top is also provided with protective atmosphere inlet pipe 7; protective atmosphere inlet pipe 7 one end are connected with outer protection gas; the other end stretches to process furnace body 1 inside; the mixed gas of nitrogen, propane or nitrogen and propane can enter in stove by protective atmosphere inlet pipe 7; and the workpiece under heating or keeping warm mode is protected, prevent the generation of surface oxidation decarburization phenomenon.Process furnace body 1 outside is provided with 1 ~ 3 access door 8, and the setting of access door 8 can facilitate the maintenance examination of body of heater, guarantees that process furnace moves under good state.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a Spheroidizing Annealing production line rotary heating furnace, has annular-heating furnace body (1) and is inserted into the radiator tube (6) in process furnace body (1) from top, and described process furnace body (1) one side has fire door (11); It is characterized in that: at the bottom of described process furnace body (1) bottom has rotary furnace (2), at the bottom of described rotary furnace, (2) are provided with rotary support (21) below.
2. Spheroidizing Annealing production line rotary heating furnace according to claim 1, it is characterized in that: described process furnace body (1) inside has annular working platform (12), described annular working platform (12) inner side is fixed with high temperature with fire door (11) corresponding position and pushes away chain (3).
3. Spheroidizing Annealing production line rotary heating furnace according to claim 1, is characterized in that: described process furnace body (1) top is provided with forced circulation device.
4. Spheroidizing Annealing production line rotary heating furnace according to claim 3, is characterized in that: described forced circulation device is many oil cooling air-circulating fans (4), and described oil cooling air-circulating fan (4) is distributed on process furnace body (1) upper end.
5. according to the Spheroidizing Annealing production line rotary heating furnace described in claim 1 ~ 4 any one claim, it is characterized in that: described process furnace body (1) top is provided with thermopair (5), and described thermopair (5) is connected with extraneous temperature controlling system.
6. Spheroidizing Annealing production line rotary heating furnace according to claim 5; it is characterized in that: described process furnace body (1) top is also provided with protective atmosphere inlet pipe (7); described protective atmosphere inlet pipe (7) one end is connected with outer protection gas, and the other end stretches to process furnace body (1) inside.
7. Spheroidizing Annealing production line rotary heating furnace according to claim 6, is characterized in that: process furnace body (1) outside is provided with 1 ~ 3 access door (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586372.8A CN103898287A (en) | 2012-12-28 | 2012-12-28 | Annular heating furnace for spheroidizing annealing production line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210586372.8A CN103898287A (en) | 2012-12-28 | 2012-12-28 | Annular heating furnace for spheroidizing annealing production line |
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| CN103898287A true CN103898287A (en) | 2014-07-02 |
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| CN201210586372.8A Pending CN103898287A (en) | 2012-12-28 | 2012-12-28 | Annular heating furnace for spheroidizing annealing production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369017A (en) * | 2015-11-26 | 2016-03-02 | 宁夏天地奔牛实业集团有限公司 | Sealed box brine quenching thermal treatment method for mining link chains |
| CN110306025A (en) * | 2019-07-31 | 2019-10-08 | 山西中电科新能源技术有限公司 | A kind of method and rotatable workpiece pallet improving heat treatment furnace temperature uniformity |
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| CN2552940Y (en) * | 2002-07-12 | 2003-05-28 | 威远县西南工业炉有限责任公司 | Hot rolling-up spring continuous quenching converter |
| CN2875653Y (en) * | 2006-02-11 | 2007-03-07 | 湖北三环锻造有限公司 | Rotary bottom forging heating furnace |
| CN101285648A (en) * | 2007-09-17 | 2008-10-15 | 李浩泉 | Circular ring -type continuous calcining annealing hearth |
| CN102128545A (en) * | 2011-02-25 | 2011-07-20 | 中国恩菲工程技术有限公司 | Rotary converter |
| CN202254789U (en) * | 2011-08-26 | 2012-05-30 | 江西金枫玉石有限公司 | Annealing kiln for marble production |
| CN203112874U (en) * | 2012-12-28 | 2013-08-07 | 赫菲斯热处理系统江苏有限公司 | Annular heating furnace for spheroidizing annealing production line |
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2012
- 2012-12-28 CN CN201210586372.8A patent/CN103898287A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552940Y (en) * | 2002-07-12 | 2003-05-28 | 威远县西南工业炉有限责任公司 | Hot rolling-up spring continuous quenching converter |
| CN2875653Y (en) * | 2006-02-11 | 2007-03-07 | 湖北三环锻造有限公司 | Rotary bottom forging heating furnace |
| CN101285648A (en) * | 2007-09-17 | 2008-10-15 | 李浩泉 | Circular ring -type continuous calcining annealing hearth |
| CN102128545A (en) * | 2011-02-25 | 2011-07-20 | 中国恩菲工程技术有限公司 | Rotary converter |
| CN202254789U (en) * | 2011-08-26 | 2012-05-30 | 江西金枫玉石有限公司 | Annealing kiln for marble production |
| CN203112874U (en) * | 2012-12-28 | 2013-08-07 | 赫菲斯热处理系统江苏有限公司 | Annular heating furnace for spheroidizing annealing production line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369017A (en) * | 2015-11-26 | 2016-03-02 | 宁夏天地奔牛实业集团有限公司 | Sealed box brine quenching thermal treatment method for mining link chains |
| CN110306025A (en) * | 2019-07-31 | 2019-10-08 | 山西中电科新能源技术有限公司 | A kind of method and rotatable workpiece pallet improving heat treatment furnace temperature uniformity |
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Application publication date: 20140702 |