CN203021631U - Device for rapidly cooling vacuum high temperature furnace - Google Patents
Device for rapidly cooling vacuum high temperature furnace Download PDFInfo
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- CN203021631U CN203021631U CN 201220737143 CN201220737143U CN203021631U CN 203021631 U CN203021631 U CN 203021631U CN 201220737143 CN201220737143 CN 201220737143 CN 201220737143 U CN201220737143 U CN 201220737143U CN 203021631 U CN203021631 U CN 203021631U
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Abstract
The utility model belongs to the technical field of cooling of high temperature furnaces, and particularly relates to a device for rapidly cooling a vacuum high temperature furnace. The device for rapidly cooling the vacuum high temperature furnace comprises a high temperature fan (20), a two-stage heat exchange system and a pipeline part; a shell (11) of the vacuum high temperature furnace (10) is respectively provided with a circulating gas filling hole (16), an air inlet hole (12) and an air outlet hole (15); the two-stage heat exchange system comprises a first-stage heat exchanger, a second-stage heat exchanger and a circulating water pump (22) which are connected in series; the high temperature fan (20), the shell (11) and the first stage heat exchanger are communicated with one another by virtue of pipelines, so that a circulation gas circuit can be formed; and the first-stage heat exchanger is connected with the second-stage heat exchanger in series by virtue of a pipeline, so that a circulation water way can be formed. The device for rapidly cooling the vacuum high temperature furnace is capable of cooling the material in the furnace, thus shortening the production cycle, lightening the labor intensity and improving the production efficiency.
Description
Technical field
The utility model relates to High Temperature Furnaces Heating Apparatus falling temperature technique field, is specifically related to a kind of high-temperature vacuum furnace fast cooling device.
Background technology
Adopting take molybdenum glance as raw material during the vacuum decomposition technique prepares the process of high-purity superfine metal molybdenum powder, be at first to be prepared with non-ferrous metal impurity and the extremely low molybdenum powder of sulphur content, the steps include: 1, the molybdenum glance powder be prepared into spherical or block, granularity is 5～15mm; 2, pelletizing is carried out drying; 3, prepare metal molybdenum in high-temperature vacuum furnace, temperature be 1300～2000 ℃, vacuum tightness under the condition of 0.01～100Pa, constant temperature time 80～240min, molybdenum glance is carried out vacuum decomposes and generate metal molybdenum; 4, cooling collection metal molybdenum powder.
In molybdenum glance vacuum decomposition course, owing to being minute heat production, and the production temperature is generally more than 1650 ℃, if not only can cause high temperature injury to operator without the direct discharging of cooling after decomposition is completed, and the severe attrition that rapid oxidation also forms material occurs in metal molybdenum powder ingress of air under hot conditions, therefore must make each stove decompose the metal molybdenum powder that generates and be cooled to discharging again after room temperature, then carry out the production of next heat.
in existing technology, the temperature-fall period of high-temperature vacuum furnace often takes the method for nature cooling to lower the temperature, in temperature-fall period for preventing the metal molybdenum powder oxidation, avoid again outside air to enter in stove as far as possible, thereby cause temperature fall time very long, molybdenum glance raw material as 3 tons, disaggregating treatment one stove, only decomposing after completing, the temperature-fall period of high-temperature vacuum furnace just needs 28 hours at least, add loaded material, high-temperature vacuum furnace heats up, decompose and the discharging flow process, complete the production cycle of a heat molybdenum glance decomposition generally more than 60 hours, temperature-fall period almost occupies half of production cycle, make the plant factor of high-temperature vacuum furnace limited, production efficiency descends, production and human cost are very big, also restricted industrial scale.
Therefore, be necessary the structure of high-temperature vacuum furnace is transformed, under the prerequisite that guarantees molybdenum powder quality stability in high-temperature vacuum furnace, high-temperature vacuum furnace carried out fast cooling process, shorten temperature fall time, enhance productivity to greatest extent.
The utility model content
The purpose of this utility model is to provide a kind of high-temperature vacuum furnace fast cooling device, to overcome the drawback that high-temperature vacuum furnace in prior art is long in the condition of high temperature borehole cooling time, affect production efficiency, make material fast cooling in stove, thereby shorten the production cycle, reduce labour intensity, enhance productivity.
The utility model is that the technical scheme that solves the problems of the technologies described above employing is:
A kind of high-temperature vacuum furnace fast cooling device, it is characterized in that: be respectively arranged with recycle gas inflation inlet, air intake vent and air outlet on the housing of high-temperature vacuum furnace, described high-temperature vacuum furnace fast cooling device comprises high-temperature blower, two-stage heat-exchange system and pipe section, described two-stage heat-exchange system comprises first-class heat exchanger, secondary heat exchanger and the water circulating pump of series connection, described high-temperature blower, housing, first-class heat exchanger interconnect by pipeline and consist of the circulation gas circuit, and described first-class heat exchanger, secondary heat exchanger are connected by pipeline and consisted of circulation waterway.
in high-temperature vacuum furnace fast cooling device of the present utility model, the recycle gas that is used for lowering the temperature enters in high-temperature vacuum furnace through the recycle gas inflation inlet, in the gas circulation temperature-fall period, recycle gas through the high-temperature vacuum furnace heating flows out from air outlet, recycle gas through the first-class heat exchanger heat exchange enters from air intake vent, high-temperature blower provides the mobilization dynamic of recycle gas in the circulation gas circuit, and water circulating pump provides the mobilization dynamic of heat-exchanging water in circulation waterway, adopt high-temperature vacuum furnace fast cooling device of the present utility model, after pyroreaction finishes, be filled with nitrogen by the recycle gas inflation inlet in High Temperature Furnaces Heating Apparatus, the recycle gas such as hydrogen or rare gas element, start high-temperature blower, water circulating pump, recycle gas in High Temperature Furnaces Heating Apparatus under high-temperature blower auxiliary along high-temperature blower, housing, the continuous circulation of circulation gas circuit that first-class heat exchanger and respective line consist of, become cold air through heat exchange when flowing through first-class heat exchanger through the hot gas of High Temperature Furnaces Heating Apparatus, when cold air is flowed through High Temperature Furnaces Heating Apparatus again and stove in the thermal material heat exchange become hot gas, repeatedly move in circles, heat in High Temperature Furnaces Heating Apparatus is taken out of, realize the fast cooling of High Temperature Furnaces Heating Apparatus, enter secondary heat exchanger through the hot water of first-class heat exchanger heat exchange and carry out secondary heat exchange.
A kind of high-temperature vacuum furnace fast cooling device, described first-class heat exchanger are tubular heat exchange, and secondary heat exchanger is plate-type heat exchanger.
A kind of high-temperature vacuum furnace fast cooling device, described recycle gas inflation inlet is communicated with source nitrogen, sources of hydrogen or inert gas source by loading line, loading line is provided with inflation valve, adopt nitrogen, hydrogen or rare gas element etc. as recycle gas both can the fast reducing high-temperature vacuum furnace in temperature of charge, can prevent the material oxidation again.
A kind of high-temperature vacuum furnace fast cooling device, described air outlet, air intake vent are located at respectively the upper and lower of housing, so that cooling gas reduces the dead angle to greatest extent by the space in housing, improve cooling efficient.
A kind of high-temperature vacuum furnace fast cooling device arranges heat pump on the outlet pipeline of described secondary heat exchanger, to utilize the waste heat of recirculated water.
High-temperature vacuum furnace fast cooling device of the present utility model:
First, improved the internal structure design of original high-temperature vacuum furnace, introduce recirculation gas atmosphere and the circulation waterway structures such as nitrogen or rare gas element, accelerate the furnace gas circulation, improved rate of heat exchange, shortened material lifetime in High Temperature Furnaces Heating Apparatus, guaranteed the quality stability of material in high-temperature vacuum furnace, shortened the production cycle, reduced production cost, production efficiency is improved greatly;
Second, because recycle gas is the cooling that circulation realizes high-temperature vacuum furnace in relatively airtight circulation gas circuit, can realize the fast cooling of material in stove under the prerequisite of saving nitrogen, hydrogen or rare gas element consumption, thereby prevented the high temperature oxidation of working equipment in the interior material of stove and stove, improved production efficiency;
The 3rd, the recirculation gas atmosphere such as the nitrogen of introducing or rare gas element and circulation waterway structure are owing to being arranged on outside high-temperature vacuum furnace, take hardly the internal space of High Temperature Furnaces Heating Apparatus, do not affect every heat turnout of High Temperature Furnaces Heating Apparatus, also be beneficial to the technological transformation of existing all kinds of need being carried out the equipment such as the vacuum oven of fast cooling such as decomposing furnace, carbide furnace, reduction furnace, thereby reduce production costs, improve equipment efficiency of usage.
Description of drawings
Fig. 1 is high-temperature vacuum furnace quickly cooling device process structure schematic diagram of the present utility model.
Mainly number in figure; 10, high-temperature vacuum furnace; 11 housings; 12 air intake vents; 13 Heating elements; 14 material containing crucibles; 15 air outlets; 16 recycle gas inflation inlets; 17 loading lines; 18 outlet pipes; 19 enter air pipe; 20 high-temperature blowers; 21 gas circulation pipelines; 22 water circulating pumps; 23 tubular heat exchanges; 24 suction culvert I; 25 suction culvert II; 26 outlet pipeline II; 27 plate-type heat exchangers; 28 outlet pipeline I; 29 sulphur vapour passages; 30 sulphur condensing workss; 31 vacuum systems; 32 inflation valves; 33 outlet valves; 34 enter air-valve; 35 vent control valves.
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with drawings and Examples, but the technical solution of the utility model includes but not limited to this.
As shown in Figure 1, adopt high-temperature vacuum furnace 10 to decompose molybdenum glance as reaction vessel in the present embodiment and prepare metal molybdenum powder:
Be provided with Heating element 13 on housing 11 inwalls of high-temperature vacuum furnace 10, Heating element 13 is the work thermal source of high-temperature vacuum furnace 10, housing 11 tops are communicated with sulphur condensing works 30, vacuum system 31 successively by sulphur vapour passage 29, sulphur vapour passage 29 is provided with vent control valve 35, also be provided with material containing crucible 14 in housing 11, in the present embodiment, material containing crucible 14 is in order to load material molybdenum glance to be decomposed, vacuum system 15 is in order to provide vacuum, and molybdenum glance decomposes the sulphur steam that produces and enters condensation in sulphur condensing works 30 through sulphur vapour passage 29;
The high-temperature vacuum furnace fast cooling device comprises high-temperature blower 20, two-stage heat-exchange system and pipe section, be respectively arranged with recycle gas inflation inlet 16, air intake vent 12 and air outlet 15 on the housing 11 of high-temperature vacuum furnace 10, in the present embodiment, recycle gas inflation inlet 16, air intake vent 12 are located at the bottom of housing 11, and air outlet 15 is located at the top of housing 11; In the present embodiment, the high-temperature blower working temperature is 600 ℃;
The two-stage heat-exchange system comprises first-class heat exchanger, secondary heat exchanger and the water circulating pump 22 of series connection, high-temperature blower 20, housing 11, first-class heat exchanger interconnect by pipeline and consist of the circulation gas circuit, and first-class heat exchanger, secondary heat exchanger are connected by pipeline and consisted of circulation waterway; In the present embodiment, first-class heat exchanger adopts tubular heat exchange 23, secondary heat exchanger adopts plate-type heat exchanger 27, housing 11 is communicated with tubular heat exchange 23 by air outlet pipeline 18 through air outlet 15, tubular heat exchange 23 is communicated with by gas circulation pipeline 21 and high-temperature blower 20, high-temperature blower 20 is communicated with housing 11 through air intake vent 12 by inlet air pipeline 19, is respectively equipped with outlet valve 33 on air outlet pipeline 18, inlet air pipeline 19 and enters air-valve 34; Vacuum high-temperature furnace shell 11, air outlet pipeline 18, tubular heat exchange 23, gas circulation pipeline 21, high-temperature blower 20 and inlet air pipeline 19 interconnect and consist of the circulation gas circuit;
In the present embodiment, recycle gas inflation inlet 16 is communicated with argon gas source by loading line 17, and loading line 17 is provided with inflation valve 32;
Adopting high-temperature vacuum furnace fast cooling device shown in Figure 1 to carry out the molybdenum glance vacuum, to decompose the operating process of preparation metal molybdenum powder as follows:
1, loaded material: the material containing crucible 14 that will be loaded with the molybdenum glance raw material is placed in vacuum high temperature furnace 10;
2, heat temperature raising: Heating element 13 is started working, and makes the interior molybdenum glance of stove be heated to 1300 ℃;
3, vacuum is decomposed: open channel control valve 35, vacuum system 31, keep inflation valve 32, outlet valve 33 and enter air-valve 34 being closing condition, under the effect of vacuum system 31, in stove, vacuum keep is at 0.01～100Pa, and the molybdenum glance in the loading crucible begins to decompose, and sulphur steam enters 30 condensations of sulphur condensing works by sulphur vapour passage 29 and reclaims, after 80～240min, reaction finishes, and Heating element 13 quits work, and closes vacuum system 31 and vent control valve 35;
4, inflation: open inflation valve 32, outlet valve 33 and enter air-valve 34, the argon gas in argon gas source is filled with in vacuum high-temperature furnace shell 11 by recycle gas loading line 17, closing inflation valve 32;
5, fast cooling: open high-temperature blower 20, water circulating pump 22, water begins to circulate in pipeline, and argon gas follows the continuous circulation of ring gas circuit under high-temperature blower auxiliary, and the heat in high-temperature vacuum furnace is taken out of, and approximately in 12 hours stoves, temperature is down to room temperature;
6, discharging: open high-temperature vacuum furnace, take out the metal molybdenum powder in material containing crucible 14 in stove, complete the production of a heat.
Situ production practice through nearly 1 year shows, after adopting high-temperature vacuum furnace fast cooling device of the present utility model, process the molybdenum glance raw material of 3 tons, a stove, the temperature-fall period of high-temperature vacuum furnace foreshortened to present 12 hours by original 28 hours, the production cycle of every heat was reduced to present 34 hours by original 60 hours, and production efficiency improves nearly one times.
Need to prove: mentioned but equipment that do not describe in detail all adopts the existing installation in described field in this specification sheets, as long as can realize the function described in the utility model.
Claims (5)
1. high-temperature vacuum furnace fast cooling device, it is characterized in that: be respectively arranged with recycle gas inflation inlet (16) on the housing (11) of high-temperature vacuum furnace (10), air intake vent (12) and air outlet (15), described high-temperature vacuum furnace fast cooling device comprises high-temperature blower (20), two-stage heat-exchange system and pipe section, described two-stage heat-exchange system comprises the first-class heat exchanger of series connection, secondary heat exchanger and water circulating pump (22), described high-temperature blower (20), housing (11), first-class heat exchanger interconnects by pipeline and consists of the circulation gas circuit, described first-class heat exchanger, secondary heat exchanger is connected by pipeline and is consisted of circulation waterway.
2. a kind of high-temperature vacuum furnace fast cooling device according to claim 1, described first-class heat exchanger is tubular heat exchange (23), secondary heat exchanger is plate-type heat exchanger (27).
3. a kind of high-temperature vacuum furnace fast cooling device according to claim 1, described recycle gas inflation inlet (16) is communicated with source nitrogen, sources of hydrogen or inert gas source by loading line (17), and loading line (17) is provided with inflation valve (32).
4. a kind of high-temperature vacuum furnace fast cooling device according to claim 1, described air outlet (15), air intake vent (12) are located at respectively the upper and lower of housing (11).
5. a kind of high-temperature vacuum furnace fast cooling device according to claim 1, arrange heat pump on the outlet pipeline (26) of described secondary heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737143 CN203021631U (en) | 2012-12-28 | 2012-12-28 | Device for rapidly cooling vacuum high temperature furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737143 CN203021631U (en) | 2012-12-28 | 2012-12-28 | Device for rapidly cooling vacuum high temperature furnace |
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| CN203021631U true CN203021631U (en) | 2013-06-26 |
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| CN 201220737143 Expired - Fee Related CN203021631U (en) | 2012-12-28 | 2012-12-28 | Device for rapidly cooling vacuum high temperature furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834442A (en) * | 2016-06-01 | 2016-08-10 | 重庆大学 | Liquid alloy dry granulation and methane steam reforming waste heat recovery device and method |
| CN106766942A (en) * | 2016-12-28 | 2017-05-31 | 洛阳八佳电气科技股份有限公司 | A kind of special interior circulation fast cooling device of high temperature furnace and its method |
| CN106964769A (en) * | 2016-11-09 | 2017-07-21 | 湘西自治州丰达合金科技有限公司 | The production technology and production equipment special of a kind of high-performance forging rolling manganese |
| CN111750679A (en) * | 2020-07-09 | 2020-10-09 | 北京北方华创真空技术有限公司 | Continuous cooling control method for resistance furnace |
-
2012
- 2012-12-28 CN CN 201220737143 patent/CN203021631U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834442A (en) * | 2016-06-01 | 2016-08-10 | 重庆大学 | Liquid alloy dry granulation and methane steam reforming waste heat recovery device and method |
| CN106964769A (en) * | 2016-11-09 | 2017-07-21 | 湘西自治州丰达合金科技有限公司 | The production technology and production equipment special of a kind of high-performance forging rolling manganese |
| CN106766942A (en) * | 2016-12-28 | 2017-05-31 | 洛阳八佳电气科技股份有限公司 | A kind of special interior circulation fast cooling device of high temperature furnace and its method |
| CN106766942B (en) * | 2016-12-28 | 2023-10-03 | 洛阳八佳电气科技股份有限公司 | Special internal circulation rapid cooling device and method for high-temperature furnace |
| CN111750679A (en) * | 2020-07-09 | 2020-10-09 | 北京北方华创真空技术有限公司 | Continuous cooling control method for resistance furnace |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20181228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |