CN102519254B - Atmosphere-controllable vacuum box type high-temperature furnace - Google Patents
Atmosphere-controllable vacuum box type high-temperature furnace Download PDFInfo
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- CN102519254B CN102519254B CN 201110457299 CN201110457299A CN102519254B CN 102519254 B CN102519254 B CN 102519254B CN 201110457299 CN201110457299 CN 201110457299 CN 201110457299 A CN201110457299 A CN 201110457299A CN 102519254 B CN102519254 B CN 102519254B
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- heater
- burner hearth
- temperature furnace
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- balance
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Abstract
An atmosphere-controllable vacuum box type high-temperature furnace comprises a hearth. The hearth is located in a furnace body, a top balance is disposed in a gap between the top of the furnace body and the hearth, a bottom balance is disposed in a gap between the bottom of the furnace body and the hearth, the lower side of the top balance is connected with a lifting hook, the lifting hook extends into the hearth, and the upper side of the bottom balance is connected with a tray, and the tray is located in the hearth. As the atmosphere-controllable vacuum box type high-temperature furnace isadditionally provided with the balances, simultaneously, the furnace body sealing technology is adopted, and the atmosphere-controllable vacuum box type high-temperature furnace can be externally connected with a vacuum and air distribution system so as to realize a thermogravimetric analysis function while realizing sintering, heating and thermochemistry analysis; sintering, heating, thermochemistry analysis and thermogravimetric analysis of materials in a dilute suspension state can be simulated; and furthermore, sintering, heating, thermochemistry analysis and thermogravimetric analysis ofthe materials in an accumulating state and the dilute suspension state under different atmospheres can be simulated.
Description
Technical field
The invention belongs to the heating furnace technical field, relate to electric heating equipment, particularly relate to the box high temperature furnace of the controlled vacuum of a kind of atmosphere.
Background technology
Industry laboratories such as present material, chemical industry, coal are when the sintering that carries out material, heating, heat chemistry analysis, adopt thermogravimetric analyzer or box high temperature furnace mostly, but because the treatable material of thermogravimetric analyzer only is about 20mg generally speaking, inventory can not satisfy corresponding detection and analysis; And common box high temperature furnace only can be realized sintering, heating and the heat chemistry analysis of material, can not be well to the mass change situation of material in the temperature-rise period.Cause thermogravimetric analysis and material sintering, heating back material pattern to characterize and to carry out synchronously, bring a lot of inconvenience for experiment and research staff.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide the box high temperature furnace of the controlled vacuum of a kind of atmosphere, when guaranteeing that box high temperature furnace can realize that the sintering of material, heating, heat chemistry are analyzed, make it have the thermogravimetric analysis function of piling up attitude and simulation dilute suspension attitude.
To achieve these goals, the technical solution used in the present invention is:
The box high temperature furnace of vacuum that a kind of atmosphere is controlled, comprise burner hearth 14, burner hearth 14 is arranged in body of heater 15, in the gap of the top of body of heater 15 and burner hearth 14, be provided with top balance 1, in the gap of the bottom of body of heater 15 and burner hearth 14, be provided with bottom balance 11, top balance 1 below connecting shackle 3, suspension hook 3 extend into burner hearth 14 inside, balance 11 tops, bottom connect pallet 8, and pallet 8 is positioned at burner hearth 14 inside.
Described burner hearth 14 adopts equally spaced segmentation structure from top to bottom, and independent calandria 5 is set in each segmentation, adjacent segmentation Al
2O
3Exotic material separates.
Described body of heater 15 is made up of body of heater inner bag shell 10 and the body of heater shells 4 that are enclosed in outside the body of heater inner bag shell 10, and burner hearth 14 is positioned at body of heater inner bag shell 10 inside.
Described top balance 1 and bottom balance 11 all are arranged between body of heater inner bag shell 10 and the body of heater shell 4.
Described body of heater shell 4 is provided with venthole 2.
Described body of heater shell 4 adopts the cold-rolled steel sheet seal welding, and interface all adopts water collar to guarantee sealing property.
Filling heat insulating wall 6 between the hearth housing 7 of described burner hearth 14 and the body of heater inner bag shell 10.
Described heat-insulation layer 6 adopts 1700/400 type rub root or A Ersai high purity aluminium oxide fiber.
The thorax inner bottom part of described burner hearth 14 is provided with air inlet pipe 9, is provided with mixing chamber 12 between body of heater inner bag shell 10 and the body of heater shell 4, and body of heater shell 4 is provided with air admission hole 13, and air inlet pipe 9 is communicated with air admission hole 13 by mixing chamber 12, is burner hearth 14 cloth wind.
Described air inlet pipe 9 is the Y font, and an end is communicated with mixing chamber 12, and cloth wind is realized at two ends in addition.
Compared with prior art, the invention has the beneficial effects as follows:
1. because balance has been installed in the present invention additional, adopt the furnace sealing technology simultaneously, and can external vacuum and air distribution system, make the present invention when realizing sintering, heating and heat chemistry analysis, also have the function of thermogravimetric analysis;
2. because the present invention has adopted the mode of segmentation heating, effectively reduce burner hearth temperature inside gradient, guaranteed the uniform temperature of burner hearth inside;
3. owing to having adopted the mode that adds suspension hook to simulate the dilute suspension attitude, so the present invention can simulate sintering, heating, heat chemistry analysis and the thermogravimetric analysis of material under the dilute suspension attitude;
4. because the present invention can external different source of the gas, so can simulate accumulation attitude and the sintering under the dilute suspension attitude, heating, heat chemistry analysis and the thermogravimetric analysis of material under the different atmosphere.
Description of drawings
Accompanying drawing is structural representation of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further details.
As shown in drawings, the present invention is the box high temperature furnace of the controlled vacuum of a kind of atmosphere, comprise burner hearth 14 and body of heater 15, body of heater 15 is made up of body of heater inner bag shell 10 and the body of heater shells 4 that are enclosed in outside the body of heater inner bag shell 10, burner hearth 14 is positioned at body of heater inner bag shell 10 inside, in the gap of the top of body of heater 15 and burner hearth 14, be provided with top balance 1, be provided with bottom balance 11 in the gap of the bottom of body of heater 15 and burner hearth 14, top balance 1 and bottom balance 11 all are arranged between body of heater inner bag shell 10 and the body of heater shell 4.Top balance 1 below connecting shackle 3, suspension hook 3 extend into burner hearth 14 inside, and suspension hook 3 is used for fixedly material, makes with resistant to elevated temperatures material.Balance 11 tops, bottom connect pallet 8, and pallet 8 is positioned at burner hearth 14 inside, and pallet 8 is used for placing crucible, also makes with resistant to elevated temperatures material.
Wherein, burner hearth 14 adopts equally spaced segmentation structure from top to bottom, and independent calandria 5 is set in each segmentation, adjacent segmentation Al
2O
3Exotic material separates, and can effectively reduce burner hearth temperature inside gradient, guarantees the uniform temperature of burner hearth inside.
Body of heater shell 4 adopts the cold-rolled steel sheet seal welding, and interface all adopts water collar to guarantee sealing property, and body of heater shell 4 is provided with venthole 2, and as required, venthole 2 can connect pumped vacuum systems or cooling system.
Filling heat insulating wall 6 between the hearth housing 7 of burner hearth 14 and the body of heater inner bag shell 10, heat-insulation layer 6 can adopt 1700/400 type rub root or A Ersai high purity aluminium oxide fiber.
The thorax inner bottom part of burner hearth 14 is provided with air inlet pipe 9, is provided with mixing chamber 12 between body of heater inner bag shell 10 and the body of heater shell 4, and body of heater shell 4 is provided with air admission hole 13, and air inlet pipe 9 is communicated with air admission hole 13 by mixing chamber 12, is burner hearth 14 cloth wind.Air inlet pipe 9 is the Y font, and an end is communicated with mixing chamber 12, and cloth wind is realized at two ends in addition.
Use of the present invention and principle are:
1. after opening the main control microcomputer, open balance, signal transmitting device and heating unit power switch respectively;
2. put into sample after will holding the peeling of the crucible of sample or multi-layer silk screen, open hearth door, crucible or the multi-layer silk screen of putting into behind the sample placed balance on goods and services 8 or suspension hook 3, close hearth door;
3. open vacuum pump switch and congratulate gas outlet 2 valves, burner hearth 14 is vacuumized;
4. open the atmosphere control valve, make gas enter mixing chamber 12 through air admission hole 13, the atmosphere that preparation burner hearth 14 will be controlled adjusts gas port 2 valve openings, the vacuum in the control burner hearth 14;
5. 14 temperature controls of artificial intelligence PID programme-control burner hearth are set change, working procedure records the number of degrees of temperature and bottom balance 11 or top balance 1 respectively;
6. after program has been moved, wait burner hearth 14 temperature to be lower than 200 ℃ after, close vacuum pump switch and congratulate gas outlet 2 valves, open hearth door, take out sample and carry out subsequent analysis, close hearth door;
7. after closing the atmosphere by-pass valve control, close the power switch of heater, signal transmitting device and balance respectively, close the main control computer power at last.
So, temperature variations and balance reading situation of change according in the burner hearth 14 make material also have the function of thermogravimetric analysis in sintering, heating and heat chemistry analysis; If the equipment that adopts suspension hook 3 to hang comes the splendid attire material, then can realize sintering, heating, heat chemistry analysis and the thermogravimetric analysis of material under the dilute suspension attitude, by the different gas of air admission hole 13 inputs, then can simulate accumulation attitude and the sintering under the dilute suspension attitude, heating, heat chemistry analysis and the thermogravimetric analysis of material under the different atmosphere.
Claims (7)
1. box high temperature furnace of vacuum that atmosphere is controlled, comprise burner hearth (14), burner hearth (14) is arranged in body of heater (15), in the gap of the top of body of heater (15) and burner hearth (14), be provided with top balance (1), in the gap of the bottom of body of heater (15) and burner hearth (14), be provided with bottom balance (11), top balance (1) below connecting shackle (3), suspension hook (3) extend into burner hearth (14) inside, bottom balance (11) top connects pallet (8), pallet (8) is positioned at burner hearth (14) inside, described body of heater (15) is by body of heater inner bag shell (10) and be enclosed in the outer body of heater shell (4) of body of heater inner bag shell (10) and form, burner hearth (14) is positioned at body of heater inner bag shell (10) inside, it is characterized in that, the thorax inner bottom part of described burner hearth (14) is provided with air inlet pipe (9), be provided with mixing chamber (12) between body of heater inner bag shell (10) and the body of heater shell (4), body of heater shell (4) is provided with air admission hole (13), air inlet pipe (9) is communicated with air admission hole (13) by mixing chamber (12), be burner hearth (14) cloth wind, filling heat insulating wall (6) between the hearth housing (7) of described burner hearth (14) and the body of heater inner bag shell (10).
2. the box high temperature furnace of vacuum according to claim 1 is characterized in that, described burner hearth (14) adopts equally spaced segmentation structure from top to bottom, and independent calandria (5) is set in each segmentation, adjacent segmentation Al
2O
3Exotic material separates.
3. the box high temperature furnace of vacuum according to claim 1 is characterized in that, described top balance (1) and bottom balance (11) all are arranged between body of heater inner bag shell (10) and the body of heater shell (4).
4. the box high temperature furnace of vacuum according to claim 1 is characterized in that, described body of heater shell (4) is provided with venthole (2).
5. the box high temperature furnace of vacuum according to claim 1 is characterized in that, described body of heater shell (4) adopts the cold-rolled steel sheet seal welding, and interface all adopts water collar to guarantee sealing property.
6. the box high temperature furnace of vacuum according to claim 1 is characterized in that, described heat-insulation layer (6) adopts 1700/400 type rub root or A Ersai high purity aluminium oxide fiber.
7. the box high temperature furnace of vacuum according to claim 1 is characterized in that, described air inlet pipe (9) is the Y font, and an end is communicated with mixing chamber (12), and cloth wind is realized at two ends in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110457299 CN102519254B (en) | 2011-12-31 | 2011-12-31 | Atmosphere-controllable vacuum box type high-temperature furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110457299 CN102519254B (en) | 2011-12-31 | 2011-12-31 | Atmosphere-controllable vacuum box type high-temperature furnace |
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| Publication Number | Publication Date |
|---|---|
| CN102519254A CN102519254A (en) | 2012-06-27 |
| CN102519254B true CN102519254B (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110457299 Expired - Fee Related CN102519254B (en) | 2011-12-31 | 2011-12-31 | Atmosphere-controllable vacuum box type high-temperature furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102944115A (en) * | 2012-12-07 | 2013-02-27 | 深圳晶蓝地光电科技有限公司 | Heat preservation structure of high temperature furnace |
| CN110849490A (en) * | 2019-11-04 | 2020-02-28 | 成都肯保捷芯辰传感器有限公司 | Treatment method and treatment device for high-temperature sensor probe shell for automobile exhaust |
| CN112295631A (en) * | 2020-10-30 | 2021-02-02 | 沈阳真空技术研究所有限公司 | Small-size vacuum furnace heating device in laboratory |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202501746U (en) * | 2011-12-31 | 2012-10-24 | 西安建筑科技大学 | New type controlled atmosphere vacuum box-type high-temperature furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2474975Y (en) * | 2001-04-06 | 2002-01-30 | 北京工业大学 | Multifunction high temperature experimental furnace |
| US6709629B2 (en) * | 2001-06-04 | 2004-03-23 | Dowa Mining Co., Ltd. | Vacuum heat treatment furnace |
| CN201096762Y (en) * | 2007-10-29 | 2008-08-06 | 株洲职业技术学院 | Diversified quick testing analyzer for coal quality |
| CN201106038Y (en) * | 2007-11-06 | 2008-08-27 | 上海奥韦通工程技术有限公司 | Asphalt flat-jet heating furnace |
| CN101629785A (en) * | 2009-08-26 | 2010-01-20 | 洛阳市西格马仪器制造有限公司 | Box-type resistance furnace |
| CN101799242B (en) * | 2010-01-29 | 2011-08-10 | 华中科技大学 | Controllable fast-heating up thermobalance reacting furnace |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202501746U (en) * | 2011-12-31 | 2012-10-24 | 西安建筑科技大学 | New type controlled atmosphere vacuum box-type high-temperature furnace |
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Granted publication date: 20130911 Termination date: 20171231 |