CN2859420Y - A pyrogenation hydrogen-deoxidizing multifunctional high-temperature electric furnace - Google Patents
A pyrogenation hydrogen-deoxidizing multifunctional high-temperature electric furnace Download PDFInfo
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- CN2859420Y CN2859420Y CN 200520052780 CN200520052780U CN2859420Y CN 2859420 Y CN2859420 Y CN 2859420Y CN 200520052780 CN200520052780 CN 200520052780 CN 200520052780 U CN200520052780 U CN 200520052780U CN 2859420 Y CN2859420 Y CN 2859420Y
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- electric furnace
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- temperature electric
- thermal decomposition
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Abstract
The utility model discloses a hydrogen thermolysis reduction multifunction high temperature electric furnace which comprises a furnace head, a furnace mainbody, a furnace tail, a furnace tube, a porcelain boat and a temperature controller. The utility model is characterized in that the furnace head has a length of 2200 mm to 3000 mm wherein a feeding port is disposed in the middle, the feeding port port is provided with an exhaust pressure stabilization guidance with a globe valve and a porcelain boat mechanical pusher; the furnace body has a length of 4000 mm to 4600 mm, a width of 1220 mm to 1420 mm, and a height of 1550 mm to 1750 mm, the double tubes are separated into 5 to 8 segments for independently heating; the furnace tail has a length of 3600 mm to 4400 mm, and is provided with a double layer water cooling mechanism, which independently regulates the cooling within 2 to 3 segments, the furnace tail includes a hydrogen gas (H2) inlet and a hydrogen gas flowmeter on the front, a discharge port with good air-tightness, a stop valve and a micro manometer on the rear. The utility model is applicable for the high temperature decomposition and high temperature hydrogen reduction of the continuously mass produced nano cobalt powder, high quality ultrafine cobalt monoxide powder and other salt compounds with less hydrogen gas consumption, stable process, high production efficiency and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace, especially relates to a kind of nanoscale cobalt powder and ultra tiny cobalt oxyhydrogen powder production thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace.
Background technology
Nanoscale cobalt powder and ultra tiny cobalt protoxide powder, be used widely in many technical fields such as battery material, catalyst, activator in particular as the high energy secondary cell, when cobalt powder, cobalt protoxide powder particle reach or during near nano-scale, its huge specific area, high chemical property, aspect main quality index such as the capacitance of high-energy battery, cycle life, show a series of excellent properties, therefore prepare nanoscale battery powder body material, just become the target that current scientific and technological industry circle is generally pursued.
At present, the cobalt powder of industrial a large amount of uses, cobalt protoxide dusty material make with hydrogen reduction or thermal decomposition respectively in traditional high-temperature electric resistance furnace.This process is an ancient unit process in metallurgy, chemical industry and the applied chemistry, because this process is simple, is widely adopted always.But traditional high-temperature electric resistance furnace, because high temperate zone short (3～4 sections), salband are also lacked (1.5～2.0 meters), when being used for the production super fine cobalt powder, it is big not only to consume amounts of hydrogen, and because this cobalt powder has huge specific area, can be because of cooling off insufficient and fierce oxidation, even burning, make production process extremely unstable or can't carry out continuously; When producing ultra tiny cobalt protoxide, improper and furnace atmosphere, pressure can't be regulated and control because of thermal system, cobalt protoxide oxidation or thermal decomposition, thermalization are closed return multiple carrying out, its result to make the cobalt protoxide product contain that the cobalt amount is not up to standard, aberration is serious.Therefore, utilize traditional high-temperature electric resistance furnace to make nanoscale cobalt powder and high-quality ultra tiny cobalt protoxide powder by continuous batch, production efficiency is low, the production cost height.
The utility model content
The purpose of this utility model is to provide a kind of consumption amounts of hydrogen few, stable production process, but continuous batch makes the thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace of nanoscale cobalt powder and high-quality ultra tiny cobalt protoxide powder.
The purpose of this utility model is achieved through the following technical solutions.
It comprises burner, the body of heater of attemperating unit is housed, be provided with the stove tail of discharging opening and hydrogen inlet and hydrogen flowmeter, boiler tube, burn boat, it is characterized in that, described burner length is 2200mm-3000mm (preferred 2400mm-2600mm), the burner middle part is provided with charging aperture, and the charging aperture front end is established exhaust voltage stabilizing conduit and the mechanical push-in elevator that has valve (preferably ball valve); The appearance and size of described body of heater is: long 4000mm-4600mm (preferred 4100mm-4300mm), wide 1220mm-1420mm, high 1550mm-1750mm, two-tube heating arrangements divide 5-8 section (preferred 6 sections) independent setting; The long 3600-4400mm of described stove tail (preferred 3900mm-4100mm) is provided with double-deck water-cooled mechanism, and water-cooled mechanism divides the 2-3 section independently to be provided with, and stop valve and differential manometer are equipped with in close discharging opening place.
The specified heating-up temperature of described body of heater can be 700 ℃-900 ℃; Described stove tail can be made of stainless steel, and stove tail tail end discharging opening place establishes the good fire door of air-tightness; Described boiler tube should adopt heat-resisting, corrosion resistant stainless steel to make; Described burning boat should divide upper and lower two-layer, adopts high temperature resistant cast steel to make.
The utility model both can be used for continuous batch and had produced common cobalt powder and cobalt protoxide product, but continuous batch makes nanoscale cobalt powder and high-quality ultra tiny cobalt protoxide powder again, can also use as the elevated temperature heat dore furnace and the high-temperature hydrogen reduction stove of other salt compounds, and the consumption amounts of hydrogen is few, stable production process, the production efficiency height, production cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to accompanying drawing, it comprises burner, body of heater, stove tail, boiler tube burns boat, and attemperating unit, described burner place on the support 11, length is 2500mm, and the burner middle part is provided with charging aperture 1, and charging aperture 1 front end vertical direction is provided with the exhaust voltage stabilizing conduit 4 of dribbling valve 3, and horizontal direction is provided with mechanical push-in elevator 2; Described body of heater 6 places on the support 12, its appearance and size is: long 4200mm, wide 1320mm, high 1650mm, 6 sections independent heating of two-tube branch, heater element is the Cr20Ni80 material, design heating power 72kw, specified heating-up temperature is 800 ℃, the thermocouple 5 of attemperating unit is loaded on the body of heater 6, attemperating unit is front and back opening door temperature-controlling cabinets (not drawing among the figure), design control power 90kw adopts controllable silicon coupling intelligent digital thermometric instrument and NiCr-NiSi thermocouple, and furnace temperature is carried out 6 sections demonstrations and control automatically, temperature is carried out PID and is regulated, temperature control precision ± 2 ℃; The long 4000mm of described stove tail is provided with double-deck water-cooled mechanism, and water-cooled mechanism divides 2 sections independent settings, makes of stainless steel, is supported by pillar 13, is provided with hydrogen (H near stove tail front end place
2) inlet and hydrogen flowmeter 7, stove tail tail end is provided with the discharging opening 10 that the good fire door of air-tightness is housed, and near the top of discharging opening 10 stop valve 8 and differential manometer 9 is housed; Described boiler tube (not drawing among the figure) should adopt heat-resisting, corrosion resistant stainless steel to make; Described burning boat divides upper and lower two-layer, should adopt high temperature resistant cast steel to make.
Application Example 1: the production of nanoscale cobalt powder
When using this utility model to produce the nanoscale cobalt powder, raw material CoCO
3The CoCO that should select for use No. 200510031454.6 disclosed technologies of Chinese invention patent application and isolated plant to produce
3, impurity contents such as its main chemical Fe, Cu, Mn, Ni, Pb, Zn, Ca, Mg respectively≤0.01%; Physical index: Co≤50%, H
2O≤0.2%, particle mean size: 0.10～0.15 μ m.
At first globe valve 3 is opened, stop valve 8 is closed, and pure hydrogen is imported boiler tube through hydrogen flowmeter 7, furnace air is driven clean thoroughly (1～2 hour), and then each band to stove send electrical heating to heat up, and is simultaneously that the cooling water channel of stove tail is open-minded, when each band temperature reaches setting value, with CoCO
3Material adds the double-deck boat that burns, and will burn boat with the mechanical push-in elevator 2 boat speed that pushes away in accordance with regulations and push boiler tube by charging aperture 1, and regulate hydrogen flowmeter 7 simultaneously, enters the hydrogen reduction process.Waste gas through globe valve 3 by 4 emptyings of exhaust voltage stabilizing conduit.At last, product is gone out by discharging opening 10 hooks, and product is carried out inert gas shielding rapidly, so charging → push away boat → reaction → cooling → discharging → protection process to move in circles, and continuous batch is produced.
With described CoCO
3Be raw material, adopt this utility model, can produce specific area 〉=30m by continuous batch by high-temperature hydrogen reduction
2/ g, sphere or class spherical morphology, particle mean size: 0.05～0.10 μ m, the high-purity cobalt powder of the nanoscale of oxygen content≤0.2%.
Application Example 2: the production of ultra tiny cobalt protoxide powder
When using the utility model to produce ultra tiny cobalt protoxide dusty material, its raw material CoCO
3The CoCO that selects for use No. 200510031454.6 disclosed technologies of Chinese invention patent application and isolated plant to produce
3Powder, impurity contents such as its main chemical Fe, Cu, Mn, Ni, Pb, Zn, Ca, Mg are respectively≤0.01%; Physical index: Co≤50%, H
2O≤0.2%, particle mean size: 0.20～0.30 μ m.
At first use CO
2Gas feeds boiler tube by stop valve 8, opens globe valve 3 simultaneously, with CO
2After gas is driven the interior air (about 1 hour) of boiler tube,, simultaneously that stove tail cooling water channel is open-minded to each band energising heat temperature raising of stove.When each band temperature reaches setting value, CoCO
3Pack in the double-deck burning boat, sent in the stove by charging aperture 1, will burn boat with mechanical push-in elevator 2 and push boiler tube, the boat speed that pushes away in accordance with regulations will be burnt boat and progressively be advanced the high temperature band to carry out pyrolysis.CO
2Gas, steam through globe valve 3 by 4 emptyings of exhaust voltage stabilizing conduit.When the burning boat pushes the 3rd band, stop to feed CO
2Gas, this moment, the careful globe valve 3 of regulating made differential manometer 9 pointers be in the pressure-fired place, and until stable, product is gone out by discharging opening 10 hooks.After product was normal, fixedly globe valve 3 no longer changed.The rapid blanketing with inert gas of product, so charging → push away boat → reaction → cooling → discharging → protection process to move in circles, continuous batch is produced.
With described CoCO
3Be raw material, adopt the utility model, decompose and to produce specific area 〉=12m by continuous batch by elevated temperature heat
2/ g, sphere or class spherical morphology, pine ratio＞0.3g/cm
3, particle mean size: the high-purity super fine cobalt protoxide dusty material of 0.15～0.35 μ m.
This utility model also can be used for the production of common cobalt powder and cobalt protoxide.
This device can also use as the elevated temperature heat dore furnace and the high-temperature hydrogen reduction stove of other salt compounds.
Claims (8)
1, a kind of thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace, comprise burner, the body of heater of attemperating unit is housed, be provided with the stove tail of discharging opening and hydrogen inlet and hydrogen flowmeter, boiler tube burns boat, it is characterized in that, described burner length is 2200mm-3000mm, and the burner middle part is provided with charging aperture, and the charging aperture front end is established exhaust voltage stabilizing conduit and the mechanical push-in elevator that has valve; The appearance and size of described body of heater is: long 4000mm-4600mm, and wide 1220mm-1420mm, high 1550mm-1750mm, heating arrangements divide the 5-8 section independently to be provided with; The long 3600-4400mm of described stove tail is provided with double-deck water-cooled mechanism, and water-cooled mechanism divides the 2-3 section independently to be provided with, near stop valve and differential manometer being housed the discharging opening place.
2, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 1 is characterized in that described burner length is 2400mm-2600mm.
3, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 1 and 2 is characterized in that, the long 4100mm-4300mm of described body of heater.
4, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 1 and 2 is characterized in that, the long 3900mm-4100mm of described stove tail.
5, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 3 is characterized in that, the long 3900mm-4100mm of described stove tail.
6, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 1 and 2 is characterized in that, the two-tube heating arrangements of described body of heater divides 6 sections independent settings.
7, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 3 is characterized in that, the two-tube heating arrangements of described body of heater divides 6 sections independent settings.
8, thermal decomposition hydrogen reduction multifunctional high-temperature electric furnace according to claim 4 is characterized in that, the two-tube heating arrangements of described body of heater divides 6 sections independent settings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052780 CN2859420Y (en) | 2005-12-15 | 2005-12-15 | A pyrogenation hydrogen-deoxidizing multifunctional high-temperature electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052780 CN2859420Y (en) | 2005-12-15 | 2005-12-15 | A pyrogenation hydrogen-deoxidizing multifunctional high-temperature electric furnace |
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| Publication Number | Publication Date |
|---|---|
| CN2859420Y true CN2859420Y (en) | 2007-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052780 Expired - Fee Related CN2859420Y (en) | 2005-12-15 | 2005-12-15 | A pyrogenation hydrogen-deoxidizing multifunctional high-temperature electric furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141036A (en) * | 2018-09-17 | 2019-01-04 | 湖南湘瓷科艺有限公司 | A kind of continous way metallization furnace atmosphere stable regulation method and device |
| CN112857031A (en) * | 2020-12-31 | 2021-05-28 | 崇义章源钨业股份有限公司 | Oxidation reduction furnace |
-
2005
- 2005-12-15 CN CN 200520052780 patent/CN2859420Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141036A (en) * | 2018-09-17 | 2019-01-04 | 湖南湘瓷科艺有限公司 | A kind of continous way metallization furnace atmosphere stable regulation method and device |
| CN109141036B (en) * | 2018-09-17 | 2023-12-19 | 湖南湘瓷科艺有限公司 | Continuous metallization furnace atmosphere stable adjustment method |
| CN112857031A (en) * | 2020-12-31 | 2021-05-28 | 崇义章源钨业股份有限公司 | Oxidation reduction furnace |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |