CN101881556A - Multi-working area large-capacity energy saving vacuum sintering furnace - Google Patents
Multi-working area large-capacity energy saving vacuum sintering furnace Download PDFInfo
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- CN101881556A CN101881556A CN 201010221520 CN201010221520A CN101881556A CN 101881556 A CN101881556 A CN 101881556A CN 201010221520 CN201010221520 CN 201010221520 CN 201010221520 A CN201010221520 A CN 201010221520A CN 101881556 A CN101881556 A CN 101881556A
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Abstract
The invention relates to a multi-temperature area large-capacity energy saving vacuum sintering furnace which comprises a furnace shell, a heating chamber, a vacuum system, a cooling system and a PLC (Programmable Logic Controller) automatic control system and is characterized in that a middle heater is installed vertically in the middle of the heating chamber in an axial direction for dividing the heating chamber into two working areas; the back end of the heating chamber is provided with a switchable valve as a cooling gas channel; and the thickness of a heat preservation and insulation layer is increased to 1.5 times of the original thickness. One-time charge batch of the furnace achieves 1500kg; by using a capacity increase method, if products of the same quantity are sintered, the energy consumption of piece weight is obviously reduced; and the land occupation of equipment, operators, operating sequence and operating time are also reduced.
Description
Technical field
The present invention relates to manufacture field magnetic material vacuum-sintering equipment, is big, the energy-conservation permanent-magnet materials vacuum sintering furnace of a kind of caking power.
Background technology
In the manufacturing process of novel high-performance permanent-magnet material neodymium iron boron, vacuum-sintering is main critical process, because sintering process is to vacuum, having relatively high expectations of furnace temperature uniformity consistency, for many years, the sintering furnace of Shi Yonging always, batch is less, generally be no more than 500kg, production efficiency is low, and power consumption is high.Yet only enlarge the workspace of stove,, can make the product inequality of being heated, reduce qualification rate though can improve batch.
The work on hand district is the type of furnace of 500kg, is equipped with heating power 150kw.If produce the 1500kg material, need three sintering furnaces, need to be equipped with power 450kw, occupation of land is three a area.
Summary of the invention
The present invention provides a kind of agglomerating plant of high efficiency low energy consumption for the magnetic material sintering process.
Many warm areas large-capacity energy saving vacuum sintering furnace of the present invention, constitute by furnace shell, heating clamber, vacuum system, cooling system and PLC automatic control system, it is characterized in that the heating clamber jackshaft to vertical installation heater, will be divided into two workspaces in the heating clamber; But the heating clamber rear end is provided with the valve of switch as cooled gas path, and the insulation layer thickens 1.5 times of 500kg sintering furnace.
Vacuum sintering furnace of the present invention will be divided into two working spaces with heater in the burner hearth, though batch increases like this, furnace charge is still thermally equivalent, guarantees product quality.Batch of this invention type of furnace reaches 1500kg, by this method of amplifying, makes the product of the same amount of sintering, and the substance energy consumption just obviously reduces.Be to improve energy-saving effect, the present invention has also designed thicker insulation layer, but and the cooled gas path valve of employing switch, further cut down the consumption of energy.Though the capacity that strengthens separate unit in addition is three times of original separate unit to 1500kg, to be increased to 350kw just much of that and be equipped with power, and occupation of land is just much of that less than 2 times of separate unit 500kg sintering furnace.Equipment take up an area of reduce, operating personnel and the sequence of operation also reduced, be operating personnel's action: as opening operational outfit, action frequencies such as blow-on door, loading and unloading material have reduced, activity duration is identical when accounting for existing equipment, be equivalent to originally work simultaneously, so energy-conservation, effect is efficiently arranged with three stoves.
Be located at this group heater in the middle of the stove at the centre radiation heating, promptly solve increase behind the space middle part be heated deficiency, reduced equipment occupation space again.
Intermediate heater does not adopt the molybdenum band and is to use the reason of graphite to be, the heater of vertical hanging state is in the high temperature center, if use metal material to deform easily, influences the reliability of equipment, and graphite material can not be out of shape when high temperature, thereby improves the reliability of equipment.
Description of drawings
Fig. 1 is the axial cutaway view of vacuum sintering furnace of the present invention;
Fig. 2 is the radial cross-section of two working space vacuum sintering furnaces and vacuum system;
Fig. 3 is that axial heating clamber and intermediate heater are provided with schematic diagram;
Fig. 4 is the heating clamber front view that two working spaces and intermediate heater are arranged;
The specific embodiment
Many warm areas large-capacity energy saving vacuum sintering furnace of the present invention, by furnace shell 1, heating clamber 3 as vacuum chamber, vacuum system 8, cooling system, formations such as PLC intelligence control system, it is characterized in that heating clamber 3 jackshafts to intermediate heater 9 vertically is set, will be divided into a left side and right two workspaces 14,15 in the heating clamber 3; But the back air door 16 that heating clamber 3 axially is provided with switch is as cooled gas path, and the insulation layer thickens 1.5 times of original 500kg sintering furnace.
Furnace shell 1 is columnar vacuum airtight container, sees Fig. 1,2, and axially parallel is installed in ground, and vacuum system 8, the heating clamber 3 of body of heater positioned inside rectangular shape are installed in furnace shell 1 side.The furnace shell 1 front end face door of kicking off, furnace shell 1 rear end links to each other with the gas circulation cooling system by pipeline.The backwind tube 5 of gas circulation cooling system is connected on furnace shell 1 middle part and communicates with the space of stove internal heater 3 outsides, in backwind tube 5 pipelines heat exchanger 6 is set, and its outlet is communicated with blower fan 7, and blower fan 7 outlets are communicated with furnace shell 1 rear end.Furnace shell 1 is provided with introduces electrode 2, electric energy is guided on the heater 9,10 in the heating clamber heater 9,10 energising back heating heating furnace charges.
Heating clamber axial section structure such as Fig. 3, horizontal section such as Fig. 4, it is characterized in that in the heating clamber 3 that wall is provided with molybdenum band heater 10 up and down, the centre position axially is provided with one group of intermediate heater 9 in heating clamber 3, intermediate heater 9 is vertically hung installation, the heating clamber inner space is divided into left and right two workspaces 14,15, as shown in Fig. 2,4.This group heater material is a graphite, makes tubulose, and per two graphite-pipe two ends link to each other and connect, constitute a whole set of intermediate heater 9, and the head and the tail two ends link to each other with top extraction electrode 2.
The two ends of heating clamber 3 are provided with ventilating opening 16, as shown in Figure 4, and are provided with movable air door 11,12 to be opened/closed, establish cylinder 4 separately and drive.Forward and backward movable air door 12,11 sealings of two ends ventilating opening 16 usefulness during heating, during cooling before movable air door 11 move to a1 position among Fig. 3 by cylinder 4 axle horizontals, afterwards movable air door 12 is along the position that moves on to a2 among Fig. 3 on the uplink path.Two ventilating openings 16 are opened relatively.Be filling alumina silicate heat-insulation and heat-preservation felt 13 in the wall of heating clamber 3 among Fig. 3, thickness is 1.5 times of conventional 500Kg sintering furnace.Add thick insulation layer and be and strengthen insulation effect, air door before and after closing when another measure is heating, these two kinds of measures play outwards reduce conduct heat, energy-conservation effect.According to heat transfer formula Q=λ * δ T*s/d, (in the formula: the heat of Q-conduction, λ-thermal conductivity factor, temperature difference in the δ T-between the outer boundary, s-heat transfer area, d-insulation layer thickness), increase d to 1.5 times of insulation layer thickness when other parameter constants, the heat of conduction reduces to original 1/1.5.
Vacuum system 8 is the unit that vacuumizes of main pump with the oil diffusion pump, and the configuration specification is according to the corresponding increase in furnace chamber space, to satisfy the arts demand of sintering 1500kg furnace charge.
Gas circulation cooling system, control system are ripe change system.
The key technical indexes of equipment:
Workspace 500x750x1600mm, 2 districts
Disposal ability 1500kg/ stove.
Be equipped with heating power 350kw
Control system, plc controls automatically, has full-automatic/manual function.
Claims (3)
1. many warm areas large-capacity energy saving vacuum sintering furnace is made of furnace shell, heating clamber, vacuum system, cooling system and PLC automatic control system, it is characterized in that the heating clamber jackshaft to vertical installation intermediate heater, will be divided into two workspaces in the heating clamber; But the heating clamber rear end is provided with the valve of switch as cooled gas path, and the insulation layer thickens 1.5 times of 500Kg sintering furnace.
2. multi-work space vacuum sintering furnace according to claim 1, its feature is characterised in that in the heating clamber (3) that wall is provided with molybdenum band heater (10) up and down, to vertically hanging intermediate heater (9) is installed at heating clamber (3) jackshaft, the inner space of heating clamber (3) is divided into left and right two workspaces (14,15).
3. multi-work space vacuum sintering furnace according to claim 2, its feature are characterised in that intermediate heater (9) material is a graphite, make tubulose, and per two graphite-pipe two ends link to each other and connect, constitute a whole set of intermediate heater, and its two ends connect electrode (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010221520 CN101881556A (en) | 2010-07-09 | 2010-07-09 | Multi-working area large-capacity energy saving vacuum sintering furnace |
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| CN 201010221520 CN101881556A (en) | 2010-07-09 | 2010-07-09 | Multi-working area large-capacity energy saving vacuum sintering furnace |
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| CN101881556A true CN101881556A (en) | 2010-11-10 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200393A (en) * | 2011-06-21 | 2011-09-28 | 中国电子科技集团公司第二研究所 | Vacuum heating equipment |
| CN102586555A (en) * | 2012-03-31 | 2012-07-18 | 沈阳恒进真空科技有限公司 | Long-temperature area vacuum heat treatment furnace with rails in hot area |
| CN102620556A (en) * | 2012-05-09 | 2012-08-01 | 河北新特过滤技术有限公司 | Screen sintering furnace and method for screen sintering by using such furnace |
| CN102889781A (en) * | 2012-05-09 | 2013-01-23 | 河北新特过滤技术有限公司 | Method for carrying out silk screen sintering by utilizing silk screen sintering furnace |
| CN102901343A (en) * | 2012-11-12 | 2013-01-30 | 湖南山联新材科技有限公司 | Industrial microwave sintering hard alloy equipment |
| CN103398577A (en) * | 2013-08-02 | 2013-11-20 | 宁波宁港永磁材料有限公司 | Samarium cobalt permanent magnet vacuum sintering furnace |
| EP2843339A1 (en) * | 2013-08-15 | 2015-03-04 | Ipsen International GmbH | Center heating element for a vacuum heat treating furnace |
| CN104391525A (en) * | 2014-10-30 | 2015-03-04 | 中国电子科技集团公司第四十八研究所 | Temperature control system used for intermittent sintering furnace |
| CN107101497A (en) * | 2017-06-19 | 2017-08-29 | 中南大学 | A kind of high/low temperature binary vacuum sintering funace |
| CN108151539A (en) * | 2017-12-30 | 2018-06-12 | 宁波宁港永磁材料有限公司 | A kind of sintering furnace burner hearth, the sintering furnace of sintered samarium cobalt magnetic material |
| CN108151540A (en) * | 2017-12-30 | 2018-06-12 | 宁波宁港永磁材料有限公司 | A kind of sintering furnace of sintered samarium cobalt magnetic material |
| CN114264146A (en) * | 2021-12-30 | 2022-04-01 | 江西开源自动化设备有限公司 | Monomer vacuum sintering furnace |
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| EP1265044A1 (en) * | 2001-06-04 | 2002-12-11 | Dowa Mining Co., Ltd. | Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure |
| CN2802405Y (en) * | 2005-07-05 | 2006-08-02 | 赵香慈 | Vertical continuous fritting furnace with multiple temp zone pipes |
| CN200965413Y (en) * | 2006-11-03 | 2007-10-24 | 赵香慈 | A ductless vertical continuous sintering furnace hearth structure |
| CN201277803Y (en) * | 2008-09-25 | 2009-07-22 | 天津市天骄电炉制造有限公司 | Dewaxing compressing sintering heat treatment vacuum furnace |
| CN101655310A (en) * | 2009-09-18 | 2010-02-24 | 沈阳恒进真空科技有限公司 | Protective atmosphere vacuum sintering furnace with high temperature of 1800 DEG C |
| CN101655311A (en) * | 2009-09-18 | 2010-02-24 | 沈阳恒进真空科技有限公司 | Internally-heated lead vacuum heat treating furnace |
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2010
- 2010-07-09 CN CN 201010221520 patent/CN101881556A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1265044A1 (en) * | 2001-06-04 | 2002-12-11 | Dowa Mining Co., Ltd. | Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure |
| CN2802405Y (en) * | 2005-07-05 | 2006-08-02 | 赵香慈 | Vertical continuous fritting furnace with multiple temp zone pipes |
| CN200965413Y (en) * | 2006-11-03 | 2007-10-24 | 赵香慈 | A ductless vertical continuous sintering furnace hearth structure |
| CN201277803Y (en) * | 2008-09-25 | 2009-07-22 | 天津市天骄电炉制造有限公司 | Dewaxing compressing sintering heat treatment vacuum furnace |
| CN101655310A (en) * | 2009-09-18 | 2010-02-24 | 沈阳恒进真空科技有限公司 | Protective atmosphere vacuum sintering furnace with high temperature of 1800 DEG C |
| CN101655311A (en) * | 2009-09-18 | 2010-02-24 | 沈阳恒进真空科技有限公司 | Internally-heated lead vacuum heat treating furnace |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200393A (en) * | 2011-06-21 | 2011-09-28 | 中国电子科技集团公司第二研究所 | Vacuum heating equipment |
| CN102586555A (en) * | 2012-03-31 | 2012-07-18 | 沈阳恒进真空科技有限公司 | Long-temperature area vacuum heat treatment furnace with rails in hot area |
| CN102586555B (en) * | 2012-03-31 | 2013-06-12 | 沈阳恒进真空科技有限公司 | Long-temperature area vacuum heat treatment furnace with rails in hot area |
| CN102620556A (en) * | 2012-05-09 | 2012-08-01 | 河北新特过滤技术有限公司 | Screen sintering furnace and method for screen sintering by using such furnace |
| CN102889781A (en) * | 2012-05-09 | 2013-01-23 | 河北新特过滤技术有限公司 | Method for carrying out silk screen sintering by utilizing silk screen sintering furnace |
| CN102620556B (en) * | 2012-05-09 | 2013-04-03 | 河北新特过滤技术有限公司 | Screen sintering furnace and method for screen sintering by using such furnace |
| CN102901343A (en) * | 2012-11-12 | 2013-01-30 | 湖南山联新材科技有限公司 | Industrial microwave sintering hard alloy equipment |
| CN103398577B (en) * | 2013-08-02 | 2015-06-17 | 宁波宁港永磁材料有限公司 | Samarium cobalt permanent magnet vacuum sintering furnace |
| CN103398577A (en) * | 2013-08-02 | 2013-11-20 | 宁波宁港永磁材料有限公司 | Samarium cobalt permanent magnet vacuum sintering furnace |
| EP2843339A1 (en) * | 2013-08-15 | 2015-03-04 | Ipsen International GmbH | Center heating element for a vacuum heat treating furnace |
| US9891000B2 (en) | 2013-08-15 | 2018-02-13 | Ipsen, Inc. | Center heating element for a vacuum heat treating furnace |
| CN104391525A (en) * | 2014-10-30 | 2015-03-04 | 中国电子科技集团公司第四十八研究所 | Temperature control system used for intermittent sintering furnace |
| CN107101497A (en) * | 2017-06-19 | 2017-08-29 | 中南大学 | A kind of high/low temperature binary vacuum sintering funace |
| CN108151539A (en) * | 2017-12-30 | 2018-06-12 | 宁波宁港永磁材料有限公司 | A kind of sintering furnace burner hearth, the sintering furnace of sintered samarium cobalt magnetic material |
| CN108151540A (en) * | 2017-12-30 | 2018-06-12 | 宁波宁港永磁材料有限公司 | A kind of sintering furnace of sintered samarium cobalt magnetic material |
| CN114264146A (en) * | 2021-12-30 | 2022-04-01 | 江西开源自动化设备有限公司 | Monomer vacuum sintering furnace |
| CN114264146B (en) * | 2021-12-30 | 2023-11-03 | 江西开源自动化设备有限公司 | Single vacuum sintering furnace |
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Application publication date: 20101110 |