CN106610218A - Vertical type large-capacity high-efficiency medium-frequency furnace and production method thereof - Google Patents
Vertical type large-capacity high-efficiency medium-frequency furnace and production method thereof Download PDFInfo
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- CN106610218A CN106610218A CN201510696638.8A CN201510696638A CN106610218A CN 106610218 A CN106610218 A CN 106610218A CN 201510696638 A CN201510696638 A CN 201510696638A CN 106610218 A CN106610218 A CN 106610218A
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Abstract
The invention relates to a vertical type vanadium nitrogen alloy heating furnace, in particular to a vertical type large-capacity high-efficiency medium-frequency furnace and a production method thereof. A fully-automatic charging and discharging mode is adopted, one-time production yield is high, and a metal reducing process and a metal nitriding process are completed in a furnace body once. After being mature, furnace burden can be cooled to a temperature of about 650 DEG C along with the furnace, so that a crucible can be withdrawn from a medium-frequency furnace, and enters a cooling room to be subjected to secondary cooling; and a second crucible can immediately enter the furnace body for production, so that production is efficient, and energy resources are saved. A charging and discharging device with double gates is additionally arranged, so that automatic charging and discharging of materials are realized in case of not affecting atmosphere in the furnace; and a furnace body cooling section which is quick in cooling and is relatively independent is designed, so that reacted materials can be quickly cooled, and therefore, the production period is shortened.
Description
Technical field
The present invention relates to vertical VN alloy heating furnace, more particularly to vertical high capacity highly effective intermediate frequency furnace and its production method.
Background technology
The mode of production of VN alloy is of a great variety, and master operation is that vanadium raw materials are mixed homogeneously with carbon powder, binding agent and balling-up is suppressed, and is then fed into heating in stove, and Jing reduction, nitriding process obtain vanadium-nitrogen alloy product.Divide from the difference of equipment, its production method is broadly divided into pushed bat kiln method and intermediate frequency oven process.
Pushed bat kiln method has the advantages that its own as the production technology of comparative maturity, and the method is produced under non-vacuum condition, is capable of achieving simple, the quick production of VN alloy, moreover it is possible to realize higher automaticity.But pushed bat kiln method there is also larger shortcoming simultaneously：High energy consumption, loss height, sealing are poor, nitrogen pressure in furnace hardly possible is adjusted, the nitrogen content of product is not high, and furnace inner space is mainly horizontal space, and nitrogen distribution space is wide, and utilization rate is not high, floor space big, overhaul time length, consuming fund height.
Intermediate frequency heating is divided into Horizontal Heating and vertical heat again.
The operation principle and pushed bat kiln of Horizontal Heating is close, has simply changed thermal source into electromagnetic induction heating, equally exists and pushed bat kiln identical problem.
Vertical intermediate frequency oven process produces VN alloy, vertical heat can plus furnace body by way of increase production scale, therefore have the advantages that to save floor space.Other vertical heat, it is possible to achieve ejection, nitrogen and material reverse flow are entered in the bottom of nitrogen, increased the contact area of reactant, reduce reaction activity.Simultaneously, flue gas will be through material from the process that top is discharged, the heat of flue gas can play a part of heated material, improve energy utilization rate to compare, the technique all has certain advantage, but the poor continuity that at present vertical intermediate frequency furnace is produced using human assistance gravity blanking at the reduction aspect such as energy consumption and nitrogen use level, after heating process is completed, furnace charge is cooled down together with body of heater, and furnace insulation is good, and the little furnace charge cooling of area of dissipation is slow.
Compare the technology and equipment of above VN alloy production, this patent conducts a research for the problem that vertical intermediate frequency furnace technology is present, and the automatization's charging and drawing mechanism to body of heater is improved, to improve continuous production, the type of cooling that furnace charge is currently used is improved, to improve throughput rate.
The content of the invention
The purpose of invention：In order to provide a kind of effect preferably vertical high capacity highly effective intermediate frequency furnace and its production method, specific purposes are shown in the multiple substantial technological effects for being embodied as part.
In order to reach as above purpose, the present invention is adopted the following technical scheme that：
Scheme one：
Vertical high capacity highly effective intermediate frequency furnace crucible production method, the phase is characterised by, lower space and upper space, and lower space is from left to right followed successively by charging preparation room, feed space, cooling chamber;Preparation room, feed space, can open or close by hermatic door between cooling chamber, comprising feed space valve on the hermatic door included between charging preparation room and feed space, comprising charging preparation room valve on charging preparation room, charging preparation room also connects with the pipeline of vacuum pump, feed space lower section is provided with pay-off, pallet is included on pay-off, pay-off can rise on pallet, feed space top is superjacent air space, superjacent air space is body of heater, horizontal hermatic door is included between feed space and body of heater, body of heater connects cooling chamber by valve in the cooling chamber on pipeline and pipeline, the body of heater top is included into outlet system, enter outlet system for pipeline and valve；Cooling chamber valve is included in cooling chamber, cooling chamber is connected to vacuum pump by pipeline；
During use：A number crucible enters charging preparation room, charging preparation room closes hermatic door, feed space valve opening, the hermatic door that feed space is connected with body of heater is opened, enter outlet system and its valve closing, vacuum pump evacuation is used to feeding preparation room, feed space and body of heater, indoor location vacuum-ness detecting device is fed, simultaneously closing off valve in cooling chamber valve, cooling chamber carries out evacuation process；When reaching requirement, nitrogen is passed through by feeding preparation room valve, feed space valve, hermatic door between charging preparation room and feed space is opened, a number crucible is placed on pallet, crucible is raised in body of heater by hydraulic means, hermatic door is closed, pallet exits body of heater, valve opening is passed through nitrogen in cooling chamber valve, cooling chamber, enters the unlatching of outlet system；Product completes to dry in body of heater, preheats, reduces, nitrogenizing, tentatively cooling down；Furnace charge is cooled to 650 DEG C, and hermatic door is opened, and pallet holds out a crucible, and the hermatic door between feed space and cooling chamber is opened, and a crucible is moved into strong cold.
Further technical scheme of the invention is that the cooling chamber is made up of double-layer hollow structure, and material adopts heat resisting corrosion-proof corrosion material, and flowing cooling water supplement heat rejecter is passed through between interlayer, and interior is constantly passed through nitrogen auxiliary temperature-reducing；Simultaneously body of heater is also in the condition of high temperature, and No. two crucibles are produced by same steps in body of heater；Furnace charge is cooled to the hermatic door that cooling chamber is opened by 100 DEG C in a number crucible, and furnace charge completes discharging process.
Further technical scheme of the invention is that, also comprising conveying frame, a crucible can be fixed on conveying frame, and conveying frame includes hole, and a crucible is fixed in the hole that conveying frame is included, and pallet can be fed device and hold up the hole included through conveying frame.
Further technical scheme of the invention is that the conveying frame is frame structure, and frame structure can be moved.
Further technical scheme of the invention is that the furnace interior includes clamp structure, and clamp structure can get up crucible clamping.
Further technical scheme of the invention is to install position sensor on the conveying frame.
Further technical scheme of the invention is that VN alloy housing is outside the lower space and upper space.
Scheme two：
Vertical high capacity highly effective intermediate frequency furnace, the phase is characterised by, lower space and upper space, and lower space is from left to right followed successively by charging preparation room, feed space, cooling chamber;Preparation room, feed space, can open or close by hermatic door between cooling chamber, comprising feed space valve on the hermatic door included between charging preparation room and feed space, comprising charging preparation room valve on charging preparation room, charging preparation room also connects with the pipeline of vacuum pump, feed space lower section is provided with pay-off, pallet is included on pay-off, pay-off can rise on pallet, feed space top is superjacent air space, superjacent air space is body of heater, horizontal hermatic door is included between feed space and body of heater, body of heater connects cooling chamber by valve in the cooling chamber on pipeline and pipeline, the body of heater top is included into outlet system, enter outlet system for pipeline and valve；Cooling chamber valve is included in cooling chamber, cooling chamber is connected to vacuum pump by pipeline.
Using the present invention of as above technical scheme, have the advantages that relative to prior art：Using full-automatic feeding-discharging mode, disposable production yields is high, and metal reduction and nitriding operation are once completed in body of heater；After furnace charge maturation, crucible is withdrawn from from intermediate frequency furnace by cooling to 650 DEG C or so with the furnace, into cooling chamber cooling twice is carried out, second crucible can immediately enter body of heater and be produced, production is efficient, energy saving.
Description of the drawings
In order to further illustrate the present invention, it is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is inventive structure schematic diagram；
Wherein：A- feeds preparation room, b- feed spaces, c- cooling chambers, 1. a crucible, 2. No. two crucibles, 3 charging preparation room valves, 4 feed space valves, 5 cooling chamber valves, 6. valve in cooling chamber, 7. enter outlet system, 8- bodies of heater, 9- pay-offs, 10- conveying framves, 11- vacuum pumps, 12- hermatic doors.
Specific embodiment
Embodiments of the invention are illustrated below in conjunction with the accompanying drawings, embodiment is not construed as limiting the invention：
Vertical high capacity highly effective intermediate frequency furnace crucible production method, the phase is characterised by, lower space and upper space, and lower space is from left to right followed successively by charging preparation room a, feed space b, cooling chamber c;Preparation room a, feed space b, can open or close by hermatic door between cooling chamber c, comprising feed space valve 4 on the hermatic door included between charging preparation room a and feed space b, comprising charging preparation room valve 3 on charging preparation room a, charging preparation room a also connects with the pipeline of vacuum pump 1, feed space b lower sections are provided with pay-off, pallet is included on pay-off, pay-off can rise on pallet, feed space b tops are superjacent air space, superjacent air space is body of heater 8, horizontal hermatic door 12 is included between feed space b and body of heater, body of heater connects cooling chamber c by valve 6 in the cooling chamber on pipeline and pipeline, the top of the body of heater 8 is included into outlet system, enter outlet system for pipeline and valve；Cooling chamber valve 5 is included in cooling chamber c, cooling chamber c is connected to vacuum pump by pipeline；Substantive technique effect and its realize that process is as follows that the technical scheme at this place is played：During use：A number crucible 1 enters charging preparation room a, charging preparation room a closes hermatic door, feed space valve 4 is opened, the hermatic door 12 that feed space b is connected with body of heater is opened, enter outlet system 7 and its valve closing, vacuum pump evacuation is used to feeding preparation room, feed space and body of heater, indoor location vacuum-ness detecting device is fed, simultaneously closing off valve 6 on cooling chamber valve 5, cooling chamber carries out evacuation process；When reaching requirement, nitrogen is passed through by feeding preparation room valve 3, feed space valve 4, hermatic door between charging preparation room a and feed space b is opened, a number crucible 1 is placed on pallet 9, crucible is raised in body of heater by hydraulic means, hermatic door 12 is closed, pallet 9 exits body of heater, valve 6 is opened and is passed through nitrogen on cooling chamber valve 5, cooling chamber, is entered outlet system 7 and is opened；Product completes to dry, preheats, reduces, nitrogenizing, tentatively cooling down in body of heater 8；Furnace charge is cooled to 650 DEG C, and hermatic door 12 is opened, and pallet 9 holds out a crucible 1, and the hermatic door between feed space b and cooling chamber c is opened, and a crucible 1 is moved into strong cold.
As further, preferably, cooling chamber c is made up of double-layer hollow structure, and material adopts heat resisting corrosion-proof corrosion material, and flowing cooling water supplement heat rejecter is passed through between interlayer, and interior is constantly passed through nitrogen auxiliary temperature-reducing；Simultaneously body of heater is also in the condition of high temperature, and No. two crucibles 2 are produced by same steps in body of heater 8；Furnace charge is cooled to the hermatic door that cooling chamber is opened by 100 DEG C in a number crucible 1, and furnace charge completes discharging process.
As further, preferably, also comprising conveying frame 10, a crucible 1 can be fixed on conveying frame 10, and conveying frame 10 includes hole, and a crucible 1 is fixed in the hole that conveying frame 10 is included, and pallet can be fed device and hold up the hole included through conveying frame 10.Substantive technique effect and its realize that process is as follows that the technical scheme at this place is played：Crucible can be moved to conveying frame the surface of pallet, convenient can be moved.Preferably, the conveying frame 10 is frame structure, frame structure can be moved.
Used as further improvement, the furnace interior includes clamp structure, and clamp structure can get up crucible clamping.Substantive technique effect and its realize that process is as follows that the technical scheme at this place is played：After clamping is got up, the closing door 12 of lower section can accept crucible.Preferably, installing position sensor on the conveying frame 10.VN alloy housing is outside the lower space and upper space.
In a creative way, each effect of the above is individually present, moreover it is possible to complete the combination of the above results with a nested structure.
Description is improved as further：
Furnace charge apparatus for placing is made up of special graphite crucible, is possessed Large Copacity and is taken into account high intensity and allows holding for a large amount of furnace charges；Charging nitrogen protection device, cooling chamber are by disposing nitrogen degree of filling detection means using hermatic door and in space；Enter outlet system to be made up of pipeline in figure, it is ensured that on the premise of charging and cooling chamber there is no air dielectric, the nitrogen containing amount of heat flowed out in cooling chamber can also be offer gas and energy in intermediate frequency furnace；Pay-off is made up of retainer mechanical hand and hydraulic means, by displacement transducer control shift position on conveying frame, is reached appointed place and is risen mechanical hand by crucible tray to specified location by hydraulic means, and body of heater closed shutter ensures furnace sealing.Because furnace body temperature is very high, body of wall need to adopt double-decker, inside to be made up of heat-resisting steels to the space chamber being joined directly together with body of heater, and mid portion adds refractory material to play heat-insulated effect, and outside is made up of again heat-resisting steels, plays a part of protection；Cooling chamber makes samdwich hollow structure, by the cooling water auxiliary temperature-reducing of flowing in cooling procedure.The hydraulic tray of pay-off is located on carriage, transports the process stabilization of furnace charge, and after the completion of retainer, pallet exits intermediate frequency furnace, holds crucible by the hermatic door of body of heater and production is completed in body of heater, therefore has particular requirement to the heat resistance and intensity of pay-off material.
Using contrasting with conventional art, it is found that the work efficiency of this patent is three times of original crucible production efficiency；The cool time of needs is 1/2nd of original cool time.
It is clear that the technique effect that above structure is realized is realized, discounting for additional technical scheme, this patent title can also be a kind of stove.Part details not shown in figure.
It should be noted that multiple schemes that this patent is provided include the basic scheme of itself, and it is separate, mutually do not restrict, but it can also be mutually combined in the case where not conflicting, and reach multiple effects and realize jointly.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.Those skilled in the art should be recognized that the present invention is not restricted to the described embodiments; merely illustrating the principles of the invention described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements are both fallen within claimed scope.
Claims (8)
1. vertical high capacity highly effective intermediate frequency furnace crucible production method, the phase is characterised by, lower space and upper space, and lower space is from left to right followed successively by charging preparation room（a）, feed space（b）, cooling chamber（c）;Preparation room（a）, feed space（b）, cooling chamber（c）Between can open or close by hermatic door, feed preparation room（a）And feed space（b）Between on the hermatic door that includes comprising feed space valve（4）, feed preparation room（a）It is upper to include charging preparation room valve（3）, feed preparation room（a）Also and vacuum pump（1）Pipeline connection, feed space（b）Lower section is provided with pay-off, and pallet is included on pay-off, and pay-off can rise on pallet, feed space（b）Top is superjacent air space, and superjacent air space is body of heater（8）, feed space（b）Horizontal hermatic door is included and body of heater between（12）, body of heater is by valve in the cooling chamber on pipeline and pipeline（6）Connection cooling chamber（c）, the body of heater（8）Top is included into outlet system, enters outlet system for pipeline and valve；Cooling chamber（c）It is upper to include cooling chamber valve（5）, cooling chamber（c）Vacuum pump is connected to by pipeline；
During use：A number crucible（1）Into charging preparation room（a）, feed preparation room（a）Close hermatic door, feed space valve（4）Open, feed space（b）The hermatic door being connected with body of heater（12）Open, enter outlet system（7）And its valve closing, vacuum pump evacuation is used to feeding preparation room, feed space and body of heater, indoor location vacuum-ness detecting device is fed, simultaneously close off cooling chamber valve（5）, valve in cooling chamber（6）Carry out evacuation process；When reaching requirement, by feeding preparation room valve（3）, feed space valve（4）Nitrogen is passed through, preparation room is fed（a）With feed space（b）Between hermatic door open, a crucible（1）It is placed on pallet（9）On, crucible is raised in body of heater by hydraulic means, hermatic door（12）Close, pallet（9）Exit body of heater, cooling chamber valve（5）, valve in cooling chamber（6）Unlatching is passed through nitrogen, enters outlet system（7）Open；Product is in body of heater（8）Inside complete to dry, preheat, reduce, nitrogenizing, tentatively cooling down；Furnace charge is cooled to 650 DEG C, hermatic door（12）Open, pallet（9）Hold out a crucible（1）, feed space（b）And cooling chamber（c）Between hermatic door open, by a crucible（1）Move into strong cold.
2. vertical high capacity highly effective intermediate frequency furnace crucible production method as claimed in claim 1, the phase is characterised by, the cooling chamber（c）It is made up of double-layer hollow structure, material adopts heat resisting corrosion-proof corrosion material, flowing cooling water supplement heat rejecter is passed through between interlayer, interior is constantly passed through nitrogen auxiliary temperature-reducing；Simultaneously body of heater is also in the condition of high temperature, No. two crucibles（2）Body of heater is entered by same steps（8）Inside produced；A number crucible（1）Middle furnace charge is cooled to the hermatic door that cooling chamber is opened by 100 DEG C, and furnace charge completes discharging process.
3. vertical high capacity highly effective intermediate frequency furnace crucible production method as claimed in claim 1, the phase is characterised by, also comprising conveying frame（10）, a crucible（1）Conveying frame can be fixed on（10）On, conveying frame（10）Comprising hole, a crucible（1）It is fixed on conveying frame（10）Comprising hole in, pallet can be fed device hold up through conveying frame（10）Comprising hole.
4. vertical high capacity highly effective intermediate frequency furnace crucible production method as claimed in claim 1, the phase is characterised by, the conveying frame（10）For frame structure, frame structure can be moved.
5. vertical high capacity highly effective intermediate frequency furnace crucible production method as claimed in claim 1, the phase is characterised by that the furnace interior includes clamp structure, and clamp structure can get up crucible clamping.
6. vertical high capacity highly effective intermediate frequency furnace crucible production method as claimed in claim 3, the phase is characterised by, the conveying frame（10）Upper installation position sensor.
7. vertical high capacity highly effective intermediate frequency furnace crucible production method as claimed in claim 3, the phase is characterised by, VN alloy housing is outside the lower space and upper space.
8. vertical high capacity highly effective intermediate frequency furnace, the phase is characterised by, lower space and upper space, and lower space is from left to right followed successively by charging preparation room（a）, feed space（b）, cooling chamber（c）;Preparation room（a）, feed space（b）, cooling chamber（c）Between can open or close by hermatic door, feed preparation room（a）And feed space（b）Between on the hermatic door that includes comprising feed space valve（4）, feed preparation room（a）It is upper to include charging preparation room valve（3）, feed preparation room（a）Also and vacuum pump（1）Pipeline connection, feed space（b）Lower section is provided with pay-off, and pallet is included on pay-off, and pay-off can rise on pallet, feed space（b）Top is superjacent air space, and superjacent air space is body of heater（8）, feed space（b）Horizontal hermatic door is included and body of heater between（12）, body of heater is by valve in the cooling chamber on pipeline and pipeline（6）Connection cooling chamber（c）, the body of heater（8）Top is included into outlet system, enters outlet system for pipeline and valve；Cooling chamber（c）It is upper to include cooling chamber valve（5）, cooling chamber（c）Vacuum pump is connected to by pipeline.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108895845A (en) * | 2018-08-21 | 2018-11-27 | 深圳市鹰慧科技有限公司 | A kind of dry cooling tunnel furnace system of material automation |
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Address after: 725000 No. 1 science and technology road, high-tech zone, Ankang, Shaanxi Applicant after: Shaanxi Huayin Polytron Technologies Inc Address before: 725000 No. 1 science and technology road, high-tech zone, Ankang, Shaanxi Applicant before: Shaanxi Huayin Technology Co., Ltd. |
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Inventor after: Liu Xinyun Inventor after: Zheng Jianwei Inventor after: Wang Zhaozhe Inventor after: Ying Zhongfang Inventor after: Zhao Wenchao Inventor before: Ying Zhongfang Inventor before: Zhao Wenchao |
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