CN201876097U - Multi-work area high-capacity energy-saving vacuum sintering furnace - Google Patents
Multi-work area high-capacity energy-saving vacuum sintering furnace Download PDFInfo
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- CN201876097U CN201876097U CN2010205943894U CN201020594389U CN201876097U CN 201876097 U CN201876097 U CN 201876097U CN 2010205943894 U CN2010205943894 U CN 2010205943894U CN 201020594389 U CN201020594389 U CN 201020594389U CN 201876097 U CN201876097 U CN 201876097U
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- heating clamber
- sintering furnace
- vacuum sintering
- heater
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Abstract
A multi-work area high-capacity energy-saving vacuum sintering furnace comprises a furnace casing, a heating chamber, a vacuum system, a cooling system and a PLC (programmable logic controller) and is characterized in that an intermediate heater is axially and vertically mounted in the middle of the heating chamber; the inside of the heating chamber is divided into two work areas; a valve capable of opening or closing is arranged at the rear end of the heating chamber and serves as a cooling gas channel; and the thickness of a heat-insulating layer is increased to 1.5 time of the original thickness. The vacuum sintering furnace in the type can be filled with the materials of 1500kg at one step; by using a method of increasing the capacity, the energy consumption for single weight is remarkably reduced when the same quantity of products are sintered; and in addition, the occupied area of the equipment is reduced, operations and operation sequences are reduced, and the operation time is shortened.
Description
Technical field
The utility model 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
This novel purpose is the agglomerating plant that a kind of high efficiency low energy consumption is provided for the magnetic material sintering process.
A kind of multi-working area 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 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.
The design's vacuum sintering furnace 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.For improving energy-saving effect, 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 this vacuum sintering furnace;
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
The multi-working area large-capacity energy saving vacuum sintering furnace that this is novel, 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. multi-working area large-capacity energy saving vacuum sintering furnace, 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 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-working area large-capacity energy saving 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-working area large-capacity energy saving vacuum sintering furnace according to claim 2, it is characterized in that intermediate heater (9) material is a graphite, make tubulose, per two graphite-pipe two ends link to each other and connect, constitute a whole set of intermediate heater, its two ends connect electrode (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205943894U CN201876097U (en) | 2010-11-06 | 2010-11-06 | Multi-work area high-capacity energy-saving vacuum sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205943894U CN201876097U (en) | 2010-11-06 | 2010-11-06 | Multi-work area high-capacity energy-saving vacuum sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876097U true CN201876097U (en) | 2011-06-22 |
Family
ID=44164014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205943894U Expired - Fee Related CN201876097U (en) | 2010-11-06 | 2010-11-06 | Multi-work area high-capacity energy-saving vacuum sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201876097U (en) |
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2010
- 2010-11-06 CN CN2010205943894U patent/CN201876097U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111106 |