CN203474925U - High temperature continuous electrolysis experimental furnace with good sealing structure - Google Patents
High temperature continuous electrolysis experimental furnace with good sealing structure Download PDFInfo
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- CN203474925U CN203474925U CN201320623716.8U CN201320623716U CN203474925U CN 203474925 U CN203474925 U CN 203474925U CN 201320623716 U CN201320623716 U CN 201320623716U CN 203474925 U CN203474925 U CN 203474925U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a high temperature continuous electrolysis experimental furnace with a good sealing structure, and belongs to the field of high temperature electrolysis. The high temperature continuous electrolysis experimental furnace comprises an electrolysis chamber, an electrode, a feeding device, a discharging device and a discharging chamber, and is characterized in that a corrugated pipe is fixed along the edge of an inlet of the electrode in a furnace cover in a sealing mode, the upper end of the corrugated pipe is connected with an upper flange, the upper flange is connected with a positive electrode lifting device through a connecting plate, the electrode is connected with the upper flange in an axial sealing mode, the lower end of the electrode extends towards a molten pool from the interior of the corrugated pipe, and the electrode is formed by adopting a long electrode or continuously connecting a plurality of short electrode bodies. A molten pool cover plate is arranged on the molten pool. A thermal insulation screen is arranged between a heating element and a heat preservation layer. The high temperature continuous electrolysis experimental furnace is simple in structure, high in operability, capable of achieving electrolysis of metal hard to melt at the high temperature due to enhanced sealing performance, and especially suitable for preparing metallic titanium through electrolysis of titanium dioxide via molten salt.
Description
Technical field
The utility model relates to a kind of electrolytic furnace, particularly about a kind of high temperature continuous electrolysis stove with excellent sealing structure of testing use.
Background technology
At present, with electrolysis tech, produce compact metal titanium, than produce approximately cost-saving 30% left and right of energy of titanium sponge by traditional technology, and also environment friendly and pollution-free.High temperature continuous electrolysis stove is exactly the equipment for titanium and titanium alloy and some non-ferrous metal and alloy melting thereof, to this electrolytic furnace, except possessing the feature of general High Temperature Furnaces Heating Apparatus, also need to be at electrolytic system, tightness system, the aspects such as reinforced, discharge system meet design requirement, and make that it can feed in raw material under the condition that do not trouble the air, thermometric, electrolysis melting, ingot casting is cooling and go out ingot, realize alloy and produce continuously.
But more existing small test electrolytic furnaces, are mainly electrolysis of aluminum stove, controllable temperature is lower than 1000 ℃, and burner hearth is Open architecture, do not consider the associated problem such as sealing structure, insulation and heat transfer.
Utility model content
In order to solve the problem such as sealing, insulation, input and output material of existing mini type high temperature continuous electrolysis stove, make it meet the requirement of high temperature continuous electrolysis titanium metal, the utility model provides a kind of high temperature continuous electrolysis experimental furnace with excellent sealing structure, be applicable to laboratory scientific experiment, it can be under the high temperature up to 1800 ℃, the refractory metals such as fused salt electrolysis titanium, are particularly suitable for fused salt electrolysis titanium dioxide and prepare metal titanium.
The technical solution of the utility model is, a kind of high temperature continuous electrolysis experimental furnace with excellent sealing structure, comprise tank room, electrode, feeding unit, drawing mechanism and discharge chamber, tank room by outer and interior successively by furnace shell, thermal insulation layer, Heating element, molten bath encloses and forms, on furnace shell, there is bell, feeding unit is mainly comprised of feeder and filling tube, drawing mechanism is mainly by valve rod, ball valve and thrust-augmenting nozzle form, it is characterized in that, edge along described bell top electrode entrance, stopping property is fixed a corrugated tube, the upper end of described corrugated tube is fixedly connected with a upper flange, described upper flange is connected with described cathode lifting device by web plate, described electrode and described upper flange are tightly connected, described molten bath is stretched in electrode lower end from described corrugated tube, described electrode adopts a long electrode, or formed by many noncontinuous electrode continued accesses.
Further, on described molten bath, be provided with molten bath cover plate, by graphite material, made, on cover plate, be provided with the reinforced mouth of pipe, electrode ports and valve stem port.
At described furnace shell and bell outside surface, be provided with watercooling jacket.
Described bell is connected by flange with furnace shell, and there is high-temperature seal ring sealing centre.
Between described filling tube and the reinforced mouth of pipe, between electrode and electrode ports, all leave certain gap between valve rod and valve stem port.
The diameter of the reinforced mouth of pipe is than the large 1-2cm of the diameter of filling tube, the large 2-6cm of diameter of the straight diameter ratio electrode of electrode ports, and the diameter of valve stem port is than the large 1-2cm of the diameter of valve rod, and all these contribute to guarantee as much as possible sealing under prerequisites of safety action part action.
Described filling tube with on described bell for shoulder seal is connected, and be provided with a plurality of filling tubes, reinforced fast.
Between described Heating element and thermal insulation layer, thermoscreen is set heat insulation.
Lower end, with the described valve rod of described ball valve, is that shoulder seal is connected with described bell, and described ball valve is relative with the discharge port that bottom, described molten bath arranges, and by the aperture of ball valve and discharge port, controls load.
The utility model is owing to taking above technical scheme, can obtain following beneficial effect: the continuous small electrolytic experimental furnace of this high temperature 1, the utility model proposes, simple in structure, by the interface at electrode and bell, corrugated tube and flange are set, allow corrugated tube and bell be tightly connected, electrode lower end is passed from corrugated tube, upper end is connected with flange seal, make electrode can guarantee the sealing with bell, can realize again the dynamic retractility of electrode, realize so-called dynamic seal effect.2, by increase molten bath on molten bath, cover, between furnace shell and bell, sealing-ring is set, strengthened heat insulation effect, also prevented the radiation of molten bath high temperature to bell, make bath temperature can reach 1800 ℃ of high temperature.3,, by the sealing joint on bell is carried out, it is slightly larger that charging mouth of pipe molten bath being covered, electrode ports, valve stem port arrange simultaneously, and feed-pipe, electrode, valve rod can be moved easily, increased flexibility of operation.Integral body because this electrolytic furnace can be realized integral sealing, therefore can be carried out electrolysis under atmosphere protection or vacuum condition.Owing to having met high temperature requirement, this electrolytic furnace is applicable to the fused salt electrolysis of refractory metal, is particularly suitable for fused salt electrolysis titanium dioxide and prepares metal titanium.
Accompanying drawing explanation
Fig. 1 is structure cross-sectional schematic of the present utility model.
In figure, 1-thermal insulation layer, 2-Heating element, 3-molten bath cover plate, 4-molten bath, 5-feeder, 6-filling tube, the 7-mouth of pipe that feeds in raw material, 8-Graphite Electrodes, 9-web plate, 10-upper flange, 11-corrugated tube, 12-electrode ports, 13-valve rod, 14-bell, 15-valve stem port, 16-ball valve, 17-discharge port, 18-thrust-augmenting nozzle, 19-crucible, 20-escape pipe, 21-furnace shell, 22-discharge chamber.
Embodiment
Below in conjunction with drawings and Examples, utility model is described in detail.
As shown in Figure 1, cooling system, charging system, discharge system, pumped vacuum systems, electrical control system electrolytic furnace main part are in addition removed in referring in electrolytic furnace system of the utility model article, and it mainly comprises several parts of tank room, electrode, feeding unit, drawing mechanism and discharge chamber.
The same with conventional design, tank room of the present utility model is also mainly comprised of furnace shell 21, thermal insulation layer 1, Heating element 2, molten bath 4, bell 14.Furnace shell 21 is to be processed by the rolled sheet material with good welds performance, for preventing inhomogeneous distortion and the protection sealing-ring of causing, in the periphery of furnace shell, is surrounded by water jacket.Heating element 2 is arranged between furnace shell 21 and molten bath 4, apart from the about 2-4cm of molten bath 4 outer side.Heating element 2 is made by graphite material.In order further to reduce heat lost by radiation and the accumulation of heat loss of furnace shell, improve the thermo-efficiency of stove, it is graphite felt that thermal insulation layer 1(is set in the periphery of Heating element 2), its Main Function is heat insulation, insulation and reduces thermosteresis.Further, thermoscreen generally can also be set between Heating element 2 and thermal insulation layer 1 and further reduce thermosteresis (setting of not shown thermoscreen in Fig. 1).Molten bath 4 is positioned at the center of tank room, by graphite material, is made, and is used as the electrolyzer that high temperature fused salt electrolysis is used, and doublely in the process of electrolysis does the negative electrode that fused salt electrolysis is used.Can all can for the square or tubular construction that ring wraps layer by layer in furnace shell 21, thermal insulation layer 1, Heating element 2, molten bath 4.In the top cover of furnace shell 21, establish bell 14.
Feeding unit, shown in Figure 1, mainly by feeder 5 and filling tube 6, formed.Filling tube 6 tops connect feeder 5, can realize under argon shield and feeding in raw material, and bottom extend in molten bath 4 through bell 14, and between bell, takes shaft seal mode, has the function of anti-heat radiation, anti-gas-leak.
Graphite Electrodes 8 is also to enter molten bath 4 through bell 14.Graphite Electrodes 8 adopts one or more Graphite Electrodes continued access, and electrode diameter is 100-400mm.
Drawing mechanism, comprises valve rod 13, ball valve 16 and thrust-augmenting nozzle 18.Lower end is with the valve rod 13 of ball valve 16, enters into the discharge port 17 that 4 bottoms, ，Yu molten bath, bottom in molten bath 4 arrange relative through bell 14, and by ball valve 16, controls the aperture of discharge ports 17.Thrust-augmenting nozzle 18 is connected to the bottom of discharge port 17, and crucible 19 is placed on thrust-augmenting nozzle below.Discharge chamber 22 is positioned at the below of tank room, liquid titanium is flow in the crucible 19 discharge chamber, carry out cooling from the molten bath 4 of tank room.Here, valve rod 13 is also shaft seal with bell 14, has guaranteed the sealing of valve rod and tank room.
As a kind of conventional design, on bell 14, be also provided with escape pipe 20, for the discharge of gas.
In order to strengthen insulation and the sealing function of body of heater, the utility model has been done further improvement on this basis, comprising:
1, on molten bath 4, be provided with molten bath cover plate 3, by graphite material, made, be provided with the reinforced mouth of pipe 7, electrode ports 12, valve stem port 15 on cover plate, this had both guaranteed the temperature in molten bath, had reduced again the thermal radiation of the 4 pairs of bells 14 in molten bath;
2, in order to prevent that thermal radiation from causing the overheated and distortion of bell 14, and protection sealing element, at the upper surface of bell 14, be also provided with watercooling jacket;
3, the bell 14 with water jacket is connected by flange with furnace shell 21, and there is high-temperature seal ring sealing centre, can guarantee the sealing of tank room;
4, doing on above-mentioned improved basis, filling tube 6, Graphite Electrodes 8, valve rod 13 accordingly through the reinforced mouth of pipe 7, electrode ports 12, valve stem port 15 on molten bath cover plate 3, enter molten bath respectively; And between filling tube 6 and the reinforced mouth of pipe 7, between Graphite Electrodes 8 and electrode ports 12, all leave certain gap between valve rod 13 and valve stem port 15, so that filling tube 6 inserts rapidly and the moving up and down of electrode 8, valve rod 13.Preferably, the diameter of the reinforced mouth of pipe 7 is than the large 1-2cm of the diameter of filling tube left and right, and the diameter of electrode ports 12 is than the Graphite Electrodes large 2-6cm of 8 diameter left and right, and valve stem port 15 diameters are than the large 1-2cm of the diameter of valve rod 13 left and right;
5, in order to guarantee carrying out continuously of electrolysis, one, two or more filling tube 6 can be set on bell 14.
6, in order further to guarantee the sealing between Graphite Electrodes 8 and bell 14, and electrode can move up and down, the utility model improves this part-structure, adopted dynamic seal structure, mode is that a corrugated tube 11 is set, lower end is fixed on the edge maintenance of electrode entrance and the good seal of bell of bell 14, and upper end is fixedly connected with a upper flange 10; Upper flange 10 tops connect a plate 9, and web plate 9 achieves a fixed connection with cathode lifting device; Graphite Electrodes 8 enters molten bath 4 through the electrode ports on web plate 9, upper flange 10, corrugated tube 11 and bell 14 and molten bath cover plate 3, wherein between Graphite Electrodes 8 and upper flange 10, there is sealing material, by nut, compress, thereby reach the sealing purpose between Graphite Electrodes 8 and upper flange 10.Like this, Graphite Electrodes 8 just by upper flange 10 and corrugated tube 11, realized and bell 14 between dynamic seal, by the compression of corrugated tube 11, realize the decline of electrode 8.
Like this, electrolytic furnace has just been realized sealing on the whole, and vacuum pump vacuum extractor is discharged furnace air before intensification, is then filled with argon gas, under argon shield atmosphere, just can carry out molten salt electrolysis of metals.
Be a concrete electrolysis embodiment below, minute following steps are carried out:
1) titanium dioxide granulation is made to the particle that granularity is 2-8mm;
2) particle that is 2-8mm by granularity makes titanium dioxide pelletizing after drying treatment 20-30min at temperature 150-300 ℃;
3) the titanium dioxide pelletizing preparing is joined in molten bath, ionogen is added in molten bath, described ionogen is the fused salt mixt of Calcium Fluoride (Fluorspan) or Calcium Fluoride (Fluorspan) and lithium fluoride, and in this fused salt mixt, the weight percent content of lithium fluoride is 0-20%, and ionogen add-on is 2/3 of molten bath capacity;
4) electrolytic furnace is evacuated to 1 * 10
-1-5 * 10
-3pa is then filled with argon gas in electrolytic furnace, and keeping electrolysis pressure is 10-100Pa;
5) during electrolysis, the positive pole of electrolysis power is connected with graphite anode, the negative pole of electrolysis power is connected with molten bath, anode electrode adopts Graphite Electrodes 8, at electrolysis voltage 2.5-3.0V, electric power outputting current 1-10kA, carries out fused salt electrolysis under electrolysis temperature 1700-1900 ℃ condition, electrolysis time is 50-500min, the liquid metal titanium obtaining;
6) by the ball valve 16 of drawing mechanism, controlled the aperture of tank room discharge ports, metal liquid layer is released in discharging crucible 19 cooling, the amount of coming out of the stove is the 1/4-1/3 of total titanium amount, and repetitive operation subsequently adds next batch raw material.Product is after discharge chamber is cooling, and the door of opening discharge chamber takes out titanium ingot, and by its purity of titanium ingot sampling analysis measuring, the purity recording in above-mentioned experiment is 99.93%.
Claims (9)
1. a high temperature continuous electrolysis experimental furnace with excellent sealing structure, comprise tank room, electrode, feeding unit, drawing mechanism and discharge chamber, tank room is enclosed and is formed by furnace shell, thermal insulation layer, Heating element, molten bath successively by outer and interior, on furnace shell, there is bell, feeding unit is mainly comprised of feeder and filling tube, drawing mechanism is mainly comprised of valve rod, ball valve and thrust-augmenting nozzle, it is characterized in that
Edge along described bell top electrode entrance, a corrugated tube is fixed in sealing, the upper end of described corrugated tube is fixedly connected with a upper flange, described upper flange is connected with cathode lifting device by web plate, between described electrode and upper flange, there is sealing material, by nut, compress, described molten bath is stretched in described electrode lower end from corrugated tube.
2. the high temperature continuous electrolysis experimental furnace with excellent sealing structure according to claim 1, is characterized in that, is provided with molten bath cover plate on described molten bath, by graphite material, is made, and is provided with the reinforced mouth of pipe, electrode ports and valve stem port on cover plate.
3. the high temperature continuous electrolysis experimental furnace with excellent sealing structure according to claim 1, is characterized in that, at described furnace shell and bell outside surface, is provided with watercooling jacket.
4. according to the high temperature continuous electrolysis experimental furnace with excellent sealing structure described in claim 1 or 3, it is characterized in that, described bell is connected by flange with furnace shell, and there is high-temperature seal ring sealing centre.
5. according to the high temperature continuous electrolysis experimental furnace with excellent sealing structure described in claim 1 or 2 or 3, it is characterized in that, between described filling tube and the reinforced mouth of pipe, between electrode and electrode ports, all leave certain gap between valve rod and valve stem port.
6. the high temperature continuous electrolysis experimental furnace with excellent sealing structure according to claim 5, it is characterized in that, the diameter of the reinforced mouth of pipe is than the large 1-2cm of the diameter of filling tube, the large 2-6cm of diameter of the straight diameter ratio electrode of electrode ports, and the diameter of valve stem port is than the large 1-2cm of the diameter of valve rod.
7. according to the high temperature continuous electrolysis experimental furnace with excellent sealing structure described in claim 1 or 2 or 3, it is characterized in that, described filling tube with on described bell for shoulder seal is connected, and be provided with a plurality of filling tubes.
8. according to the high temperature continuous electrolysis experimental furnace with excellent sealing structure described in claim 1 or 2 or 3, it is characterized in that, between described Heating element and thermal insulation layer, thermoscreen is set.
9. according to the high temperature continuous electrolysis experimental furnace with excellent sealing structure described in claim 1 or 2 or 3, it is characterized in that, lower end is with the described valve rod of described ball valve, be that shoulder seal is connected with described bell, described ball valve is relative with the discharge port that bottom, described molten bath arranges, and by the aperture of ball valve and discharge port, controls load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320623716.8U CN203474925U (en) | 2013-10-10 | 2013-10-10 | High temperature continuous electrolysis experimental furnace with good sealing structure |
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| CN201320623716.8U CN203474925U (en) | 2013-10-10 | 2013-10-10 | High temperature continuous electrolysis experimental furnace with good sealing structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107300324A (en) * | 2017-07-28 | 2017-10-27 | 重庆大学 | High-temperature fusant granulation smelting furnace |
| CN107532317A (en) * | 2015-04-22 | 2018-01-02 | 俄铝工程技术中心有限责任公司 | Produce the method for aluminium-scandium alloy and implement the reactor of this method |
| CN109211885A (en) * | 2017-06-29 | 2019-01-15 | 宁夏软件工程院有限公司 | A kind of electrolytic process manganese ion concentration measuring device and measurement method |
| CN110470138A (en) * | 2018-05-11 | 2019-11-19 | 沈阳银海再生资源科技有限公司 | Aluminium electroloysis waste lining harmless treatment high temperature continuous fusion furnace |
| CN117166007A (en) * | 2023-09-06 | 2023-12-05 | 青岛国韬钛金属产业研究院有限公司 | Method for producing solid metallic titanium by molten salt continuous electrolysis |
| CN117287976A (en) * | 2023-11-24 | 2023-12-26 | 杭州嘉悦智能设备有限公司 | Graphitizing furnace |
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2013
- 2013-10-10 CN CN201320623716.8U patent/CN203474925U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532317A (en) * | 2015-04-22 | 2018-01-02 | 俄铝工程技术中心有限责任公司 | Produce the method for aluminium-scandium alloy and implement the reactor of this method |
| EP3287548A4 (en) * | 2015-04-22 | 2018-10-17 | (Obshchestvo S Ogranichennoy Otvetstvennost'Yu "Obedinennaya Kompaniya Rusal Inzhen-Erno- Tekhnologicheskiy Tsentr) | Method for producing aluminium-scandium alloy and reactor for implementing the method |
| CN109211885A (en) * | 2017-06-29 | 2019-01-15 | 宁夏软件工程院有限公司 | A kind of electrolytic process manganese ion concentration measuring device and measurement method |
| CN109211885B (en) * | 2017-06-29 | 2021-03-12 | 宁夏软件工程院有限公司 | Manganese ion concentration measuring equipment and method in electrolytic process |
| CN107300324A (en) * | 2017-07-28 | 2017-10-27 | 重庆大学 | High-temperature fusant granulation smelting furnace |
| CN110470138A (en) * | 2018-05-11 | 2019-11-19 | 沈阳银海再生资源科技有限公司 | Aluminium electroloysis waste lining harmless treatment high temperature continuous fusion furnace |
| CN117166007A (en) * | 2023-09-06 | 2023-12-05 | 青岛国韬钛金属产业研究院有限公司 | Method for producing solid metallic titanium by molten salt continuous electrolysis |
| CN117287976A (en) * | 2023-11-24 | 2023-12-26 | 杭州嘉悦智能设备有限公司 | Graphitizing furnace |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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