CN105466209A - Heat-insulated efficient energy-saving bottom discharge vertical vacuum calcination annealing furnace for zirconia fiber boards - Google Patents
Heat-insulated efficient energy-saving bottom discharge vertical vacuum calcination annealing furnace for zirconia fiber boards Download PDFInfo
- Publication number
- CN105466209A CN105466209A CN201511022025.2A CN201511022025A CN105466209A CN 105466209 A CN105466209 A CN 105466209A CN 201511022025 A CN201511022025 A CN 201511022025A CN 105466209 A CN105466209 A CN 105466209A
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- Prior art keywords
- burner hearth
- fire door
- heat
- heater
- annealing furnace
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/08—Arrangements of linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
Abstract
The invention provides a heat-insulated efficient energy-saving bottom discharge vertical vacuum calcination annealing furnace for zirconia fiber boards. The annealing furnace comprises a furnace body, a support, a furnace door, a lifting mechanism and a heating unit. The support supports the furnace body, a burning cavity is formed in the furnace body and used for burning products, a burning bearing board for placing a product to be burnt is arranged on the furnace door, and the burning bearing plate is driven by the lifting mechanism to be fed into the burning cavity; the heating unit is used for providing the temperature needed by burning; and during burning, the furnace door and the furnace body are sealed.
Description
Technical field
The present invention relates to the energy-efficient bottom discharge vertical vacuum calcining annealing furnace that a kind of Electric Cooker technology for making, particularly a kind of zirconium oxide fiber board are heat insulation.
Background technology
Vacuum drying oven is that one carries out sintering and heat treated conventional thermal-energy equipment to special cermacis and metal etc., its operation principle is when heating by electric cooker, vacuum system is utilized to be extracted out by furnace gas, make furnace chamber inner close to vacuum state, avoid oxygen to be oxidized calcination product and heating element heater etc., but due to the temp. in vacuum furnace very high, there is larger heat radiation, thus need to adopt thermostable heat insulation material to make heat shield, shed to prevent amount of heat.
Past is owing to lacking the stable metal-oxide fiber insulation material of heatproof more than 2000 DEG C, Long-Term Properties, traditional vacuum drying oven adopts multilayer tungsten sheet metal mostly, surround reflective insulation screen from level to level, undertaken heat insulation by the principle of reflecting heat, effect is poor, electric furnace power consumption is comparatively serious, and there is hot stage intensification slowly, is even difficult to the desirable high temperature reaching needs.
The present invention is directed to prior art problem, provide a kind of zirconium oxide fiber board that adopts as the vacuum drying oven of burner hearth heat-barrier material.The long-term heatproof of zirconium oxide fiber board more than 2200 DEG C, thermal conductivity factor is low, and heat insulation and preservation effect is splendid, and manufactured electric furnace serviceability temperature is high and energy-efficient.Meanwhile, the electric furnace type of furnace is designed to bottom discharge vertical structure, is convenient to fill discharging operations.
Summary of the invention
The object of the present invention is to provide the energy-efficient bottom discharge vertical vacuum calcining annealing furnace that a kind of zirconium oxide fiber board is heat insulation.
The technical solution realizing the object of the invention is: the energy-efficient bottom discharge vertical vacuum furnace that a kind of zirconium oxide fiber board is heat insulation, comprises body of heater, support, fire door, elevating mechanism, heater element, temperature control system, vacuum system and cooling water system.Described body of heater is positioned on support, fire door is positioned at below body of heater, upper and lower vertical lift is realized by the elevating mechanism be arranged on support, in body of heater, heater element is set, controlled by the heating-up temperature of temperature control system to heater element, vacuum system is connected with body of heater, vacuumizes in stove, is cooled individual sites by cooling water system.
Described body of heater comprises body of heater shell, burner hearth heat-barrier material and inner surfaces protect material, described body of heater shell is barrel-shaped metal shell, material is stainless steel or general steel plastic-blasting, body of heater cover top portion is provided with openable arc top cover, seal by being with the flange of sealing ring, flat circle plate-like metal base plate is welded with below body of heater shell, for the weight of support burner hearth heat-barrier material, base plate center has circular fire door, described burner hearth heat-barrier material is arranged in body of heater shell, its material is zirconium oxide fiber board, comprise hearth floor, burner hearth side plate and burner hearth top board, the center of hearth floor is provided with circular fire door, wherein lower floor's furnace port diameter is greater than upper strata furnace port diameter, burner hearth side plate is placed on hearth floor, burner hearth top board is coniformly be placed on burner hearth side plate, hearth floor, burner hearth side plate and burner hearth top board are formed by two-layer zirconium oxide fiber board, and every layer is polylith platelet composite assembly and forms, assembling part adopts fissure of displacement splicing, by reducing board dimension, effectively can reduce thermal stress, avoid the cracking of the whole plate of bulk, described inner surfaces protect material is arranged on inside the interior thorax of burner hearth heat-barrier material, and its material is tungsten plate, pieces together overall furnace chamber, to prevent the fiber disintegrating slag of burner hearth heat-barrier material from dropping in calcination product, ensures in stove clean.
Described fire door comprises metal furnaces door shell, three layers of zirconium oxide fiber board, support post and load bearing board; Wherein metal furnaces door shell is sandwich, can lead to cooling water in interlayer, after the rising of fire door shell puts in place, is sealed by the flange and body of heater shell bottom plate being with sealing ring; Three layers of zirconium oxide fiber board are placed on metal furnaces door shell, its at the middle and upper levels, intermediate layer zirconium oxide fiber board fire door rise put in place after can enter burner hearth inside, its exterior contour and fire door shape match, shutoff is carried out to fire door, lowermost fibre plate does not enter burner hearth inside after fire door rising puts in place, but its upper surface can fit tightly with body of heater shell bottom plate lower surface, do to close further to fire door, shed to stop fire door heat; The center of three layers of fiberboard is vertically inserted with support post, its material is zirconia ceramics cylinder or tungsten bar, both three layers of fiberboard were fixed, play again the effect of support product weight, load bearing board is placed on column top, its material is zirconia ceramics plate or tungsten plate, and it directly can put calcination product.
The material of described heating element heater is metal leaf or tungsten braid over braid, form a circle along inboard wall of burner hearth, three phase regions are divided into heat, star connection is adopted between three-phase, the tungsten electrode of the upper end of three-phase heating element heater phase corresponding to it is respectively fixedly connected, and connect in lower end, tungsten electrode runs through burner hearth sidewall and is connected with copper electrode, copper electrode is fixed on body of heater shell, and carries out insulating and encapsulation process.Described cooling water system to be arranged on ringwise on body of heater and copper electrode is therefrom run through, and cools copper electrode.
The present invention compared with prior art, have the following advantages: (1) vacuum drying oven of the present invention adopts zirconium oxide fiber board as burner hearth heat-barrier material, compared with traditional tungsten radiation shield, there is the clear superiorities such as heat insulation and preservation effect is good, heatproof is high, the energy-saving effect of manufactured vacuum drying oven is remarkable, compared with the vacuum drying oven that traditional tungsten radiation shield is heat insulation, and capable of reducing energy consumption more than 90%, and decrease furnace shell cooling water pass into position and intake, electric furnace heats up rapidly; (2) the vacuum drying oven type of furnace of the present invention adopts the mode of bottom discharge, and fire door, can conveniently laying sintered sample after falling below body of heater, and useful load is large, and can occupy burner hearth by block pattern row pattern, furnace cavity utilization rate is high.
Below in conjunction with Figure of description, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is side of the present invention generalized section.
Fig. 2 is heat-generating units schematic diagram of the present invention.
Detailed description of the invention
Composition graphs 1, the energy-efficient bottom discharge vertical vacuum furnace that a kind of zirconium oxide fiber board is heat insulation, comprises body of heater 1, support 2, fire door 3, elevating mechanism 4, heater element 5, temperature control system 6, vacuum system 7 and cooling water system 8.Described body of heater 1 is positioned on support 2, fire door 3 is positioned at below body of heater 1, upper and lower vertical lift is realized by the elevating mechanism 4 be arranged on support 2, heater element 5 is set in body of heater 1, controlled by the heating-up temperature of temperature control system 6 pairs of heater elements 5, vacuum system 7 is connected with body of heater 1, vacuumizes in stove, is cooled by cooling water system 8 pairs of individual sites.
Described body of heater 1 comprises body of heater shell 1-1, burner hearth heat-barrier material 1-2 and inner surfaces protect material 1-3, described body of heater shell 1-1 is barrel-shaped metal shell, material is stainless steel or general steel plastic-blasting, body of heater shell 1-1 top is provided with openable arc top cover 1-1-1, seal by being with the flange of sealing ring, flat circle plate-like metal base plate 1-1-2 is welded with below body of heater shell 1-1, for the weight of support burner hearth heat-barrier material 1-2, base plate 1-1-2 center has circular fire door, described burner hearth heat-barrier material 1-2 is arranged in body of heater shell 1-1, its material is zirconium oxide fiber board, comprise hearth floor 1-2-1, burner hearth side plate 1-2-2 and burner hearth top board 1-2-3, the center of hearth floor 1-2-1 is provided with circular fire door, wherein lower floor's furnace port diameter is greater than upper strata furnace port diameter, burner hearth side plate 1-2-2 is placed on hearth floor 1-2-1, burner hearth top board 1-2-3 is coniformly placed on burner hearth side plate 1-2-2, hearth floor 1-2-1, burner hearth side plate 1-2-2 and burner hearth top board 1-2-3 is formed by two-layer zirconium oxide fiber board, and every layer is polylith platelet composite assembly and forms, assembling part adopts fissure of displacement splicing, by reducing board dimension, effectively can reduce thermal stress, avoid the cracking of the whole plate of bulk, described inner surfaces protect material 1-3 is arranged on inside the interior thorax of burner hearth heat-barrier material 1-2, and its material is tungsten plate, pieces together overall furnace chamber, to prevent the fiber disintegrating slag of burner hearth heat-barrier material 1-2 from dropping in calcination product, ensures in stove clean.
Described fire door 3 comprises metal furnaces door shell 3-1, three layers of zirconium oxide fiber board 3-2, support post 3-3 and load bearing board 3-4; Wherein metal furnaces door shell 3-1 is sandwich, can lead to cooling water in interlayer, after fire door shell 3-1 rising puts in place, is sealed by the flange and body of heater shell 1-1 base plate being with sealing ring; Three layers of zirconium oxide fiber board 3-2 are placed on metal furnaces door shell 3-1, its at the middle and upper levels, intermediate layer zirconium oxide fiber board fire door 3 rise put in place after can enter burner hearth inside, its exterior contour and fire door shape match, shutoff is carried out to fire door, lowermost fibre plate does not enter burner hearth inside after fire door 3 rising puts in place, but its upper surface can fit tightly with body of heater shell 1-1 base plate lower surface, do to close further to fire door, shed to stop fire door heat; The center of three layers of fiberboard 3-2 is vertically inserted with support post 3-3, its material is zirconia ceramics cylinder or tungsten bar, both three layers of fiberboard 3-2 were fixed, play again the effect of support product weight, load bearing board 3-4 is placed on column 3-3 top, its material is zirconia ceramics plate or tungsten plate, and it directly can put calcination product.
The material of described heater element 5 is metal leaf or tungsten braid over braid, form a circle along inboard wall of burner hearth, three phase regions are divided into heat, star connection is adopted between three-phase, the tungsten electrode 5-1 of the upper end of three-phase heating element heater phase corresponding to it is respectively fixedly connected, and connect in lower end, tungsten electrode 5-1 runs through burner hearth sidewall and is connected with copper electrode 5-2, copper electrode 5-2 is fixed on body of heater shell 1-1, and carries out insulating and encapsulation process.Described cooling water system 8 to be arranged on ringwise on body of heater 1 and copper electrode 5-2 is therefrom run through, and cools copper electrode 5-2.
Claims (10)
1. the energy-efficient bottom discharge vertical vacuum calcining annealing furnace that a zirconium oxide fiber board is heat insulation, comprise body of heater (1), support (2), fire door (3), elevating mechanism (4), heat-generating units (5), it is characterized in that
Described support (2) supports body of heater (1),
Calcining chamber is set in described body of heater (1), for calcination product,
The upper setting of described fire door (3) puts the load bearing board treating calcination product, and is sent into by load bearing board in calcining chamber under the driving of elevating mechanism,
Described heat-generating units (5) is for providing calcining temperature required;
During calcining, fire door (3) and body of heater (1) seal.
2. vertical vacuum calcining annealing furnace according to claim 1, it is characterized in that, described body of heater (1) comprises body of heater shell (1-1), burner hearth heat-barrier material (1-2) and inner surfaces protect material (1-3);
Described body of heater shell (1-1) comprises cylindrical metal main body, the top cover (1-1-1) connecting with body top or be separated, the base plate (1-1-2) for carrying burner hearth heat-barrier material (1-2) be connected with bottom part body, described base plate (1-1-2) arranges the first fire door;
Described burner hearth heat-barrier material (1-2) comprises hearth floor (1-2-1), burner hearth side plate (1-2-2) and burner hearth top board (1-2-3), described hearth floor (1-2-1) is arranged on base plate (1-1-2), hearth floor (1-2-1) arranges the second fire door, described burner hearth side plate (1-2-2) is placed on hearth floor (1-2-1), burner hearth top board (1-2-3) is placed on burner hearth side plate (1-2-2), and burner hearth side plate (1-2-2) and burner hearth top board (1-2-3) surround calcining chamber;
Described inner surfaces protect material (1-3) is arranged on burner hearth side plate (1-2-2) and burner hearth top board (1-2-3).
3. vertical vacuum calcining annealing furnace according to claim 2, it is characterized in that, described hearth floor (1-2-1), burner hearth side plate (1-2-2) and burner hearth top board (1-2-3) are made up of Zirconium oxide fibre.
4. vertical vacuum calcining annealing furnace according to claim 2, it is characterized in that, described fire door (3) comprises fire door shell (3-1), thermal insulation board (3-2), support post (3-3) and load bearing board (3-4);
Described fire door shell (3-1) and base plate (1-1-2) corresponding position arrange the flange being with sealing ring;
Fire door shell (3-1) is sandwich, logical cooling water in interlayer;
Described thermal insulation board (3-2) is arranged on fire door shell (3-1), and the shape size of thermal insulation board (3-2) is consistent with the second fire door;
Described support post (3-3) is arranged on thermal insulation board (3-2);
Described load bearing board (3-4) is arranged on support post (3-3).
5. vertical vacuum calcining annealing furnace according to claim 4, it is characterized in that, described hearth floor (1-2-1), burner hearth side plate (1-2-2) and burner hearth top board (1-2-3) are formed by two-layer zirconium oxide fiber board, and every layer is polylith platelet composite assembly and forms, assembling part adopts fissure of displacement splicing.
6. vertical vacuum calcining annealing furnace according to claim 5, it is characterized in that, the fire door internal diameter of the top plate of described hearth floor (1-2-1) is less than the fire door internal diameter of lower plywood.
7. vertical vacuum calcining annealing furnace according to claim 6, it is characterized in that, described thermal insulation board (3-2) divides three layers, and the shape in thermal insulation board (3-2) intermediate layer is consistent with the fire door of the lower plywood of hearth floor (1-2-1), thermal insulation board (3-2) upper strata is consistent with the fire door of the top plate of hearth floor (1-2-1).
8. vertical vacuum calcining annealing furnace according to claim 2, is characterized in that, described inner surfaces protect material (1-3) is for being tungsten plate.
9. vertical vacuum calcining annealing furnace according to claim 1, it is characterized in that, described heat-generating units (5) is metal leaf or tungsten braid over braid, form a circle along inboard wall of burner hearth, three phase regions are divided into heat, star connection is adopted between three-phase, the tungsten electrode (5-1) of the upper end of three-phase heating element heater phase corresponding to it is respectively fixedly connected, connect in lower end, tungsten electrode (5-1) runs through burner hearth sidewall and is connected with copper electrode (5-2), copper electrode (5-2) is fixed on body of heater shell (1-1), and carries out insulating and encapsulation process.
10. vertical vacuum calcining annealing furnace according to claim 1, it is characterized in that, this stove also comprises temperature control system (6), vacuum system (7), cooling system (8);
Described temperature control system (6) is for controlling the temperature of heat-generating units (5);
Described vacuum system (7) for, vacuumize in stove;
Described cooling system (8) is for cooling stove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022025.2A CN105466209A (en) | 2015-12-30 | 2015-12-30 | Heat-insulated efficient energy-saving bottom discharge vertical vacuum calcination annealing furnace for zirconia fiber boards |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511022025.2A CN105466209A (en) | 2015-12-30 | 2015-12-30 | Heat-insulated efficient energy-saving bottom discharge vertical vacuum calcination annealing furnace for zirconia fiber boards |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007203A (en) * | 2016-10-31 | 2018-05-08 | 辽宁爱尔创生物材料有限公司 | A kind of Fast Sintering system and flash sintering method |
| CN108895836A (en) * | 2018-08-23 | 2018-11-27 | 洛阳宏达炉业有限公司 | A kind of furnace chamber is the lift electric kiln of cylindrical structure |
| CN109108170A (en) * | 2018-08-08 | 2019-01-01 | 扬州大学 | It is a kind of for promoting the integrated device of the expanding quality of the Ni-based multiple tube of heavy caliber |
| CN111578693A (en) * | 2020-04-29 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | High-cleanliness roller furnace suitable for heat treatment of silicon carbide fibers |
| CN111578698A (en) * | 2020-05-19 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | Roller hearth furnace suitable for heat treatment of silicon carbide fibers |
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| CN111578693A (en) * | 2020-04-29 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | High-cleanliness roller furnace suitable for heat treatment of silicon carbide fibers |
| CN111578698A (en) * | 2020-05-19 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | Roller hearth furnace suitable for heat treatment of silicon carbide fibers |
| CN111578698B (en) * | 2020-05-19 | 2022-06-21 | 中国电子科技集团公司第四十八研究所 | Roller hearth furnace suitable for heat treatment of silicon carbide fibers |
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