CN105293496B - Close calcium carbide smelting furnace and system in oxygen Electricity Federation - Google Patents
Close calcium carbide smelting furnace and system in oxygen Electricity Federation Download PDFInfo
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Abstract
The present invention relates to a kind of oxygen Electricity Federation to close calcium carbide smelting furnace, including flash smelting body of heater, flash smelting body of heater are provided with mixing nozzle, and mixing nozzle is connected with the carbon-based raw material supply mechanism of powdery, powdered calcium based raw material organization of supply and oxygen-containing gas conveying mechanism；Flash smelting body of heater bottom has reaction zone molten bath, reaction zone molten bath extends to form fining cell molten bath to the wherein side of flash smelting body of heater, and electrode is set to refine body of heater above fining cell molten bath, electrode refining body of heater is provided with the electrode for being used for inserting in fining cell molten bath, and fining cell molten bath is provided with discharging opening.The present invention can be made full use of the active surface of powder raw material, be strengthened calcium carbide and smelt course of reaction, reduce reaction temperature, shorten the reaction time using the method production calcium carbide of flash smelting；Electric energy using the high-energy-density of electrode accelerates calcium carbide reaction of formation process, and promotes calcium carbide reaction fully to complete.
Description
Technical field
The invention belongs to technical field of calcium carbide production, and in particular to close calcium carbide smelting furnace and smelting system in a kind of oxygen Electricity Federation.
Background technology
Calcium carbide is the base stock of synthetic organic chemical manufacturing industry, and its main chemical compositions is calcium carbide（CaC2）.Industrially
Calcium carbide production method is mainly electrothermal way and the hot method of oxygen.
Electrothermal way smelts calcium carbide, is to convert electrical energy into heat energy, 5 ~ 30mm of heating particle diameter lime and carbon by electric arc furnaces
Plain raw material, calcium carbide is produced under 2000~2200 DEG C of hot conditions.Calcium carbide synthetic reaction is a solid phase endothermic reaction, and chemistry is dynamic
The mechanical process time is grown；Because block stock contact area is small, reaction rate and heat and mass efficiency are had a strong impact on, therefore, electricity
Hot method, which smelts calcium carbide, needs more than 2000 DEG C of high temperature.Electrothermal way technical maturity, shortcoming are to use high-grade electric heat supply, energy
Consumption is high, efficiency is low.
The hot method of oxygen smelts calcium carbide, is to take the lead in developing by preceding Baden, Federal Republic Of Germany phenylamino soda ash company, directly utilizes the combustion heat
Heat supply is produced for calcium carbide.The hot method of oxygen is used as thermal source using the burning of carbon-containing fuel, there is provided enough heats meet needed for calcium carbide generation
Temperature and endothermic heat of reaction.The hot method of oxygen avoids the secondary conversion of energy, and its thermal efficiency is significantly higher than electrothermal way.But by
In the hot environment of the hot method of oxygen and the motion mode of material different from electrothermal way, calcium carbide is melted for fuel combustion heat supply and purity
Influence is also different from electrothermal way, and the hot method of oxygen does not obtain extensive commercial Application also.Nevertheless, the hot method of oxygen avoids electrode
Use and consume, by-product gas（Containing a large amount of CO）Can coproduction utilize, advantageously reduce investment, it is cost-effective.The hot method calcium carbide life of oxygen
Production technology has vast potential for future development, and related basic research is still among deepening constantly.Shen Wu environmental energy scientific ＆ technical corporation
The Patents of the method for preparing calcium carbide of application（Application number CN201310728767.1, CN201310729034.X,
CN201310728116.2 etc.）In, by calcium base and carbon-based raw material after pyrolysis or calcination processing, prepare calcium carbide.These methods
Although reaction rate can be improved, reduce energy consumption, it is difficult to ensure that reaction is fully completed, obtained calcium carbide grade is relatively low.
Flash smelting technique is widely used in nonferrous metallurgy industry, and the technique is the activity for making full use of fine grinding material huge
Surface, the method for smelting of strengthening smelting course of reaction.The technical characteristic of non-ferrous metal flash smelting is by the powdery of deep dehydration
Concentrate（It is aqueous to be less than 0.3%）, after hot-air or oxygen mix, at full speed（60~70m/s）Spray into reaction tower, anti-
Area is answered to produce high temperature（1450~1550 DEG C）.Flash smelting is excellent in the smelting of matte, a protrusion of this technique by more application
Point is the combustion heat for the surface energy and sulfide for making full use of fine ore, and so as to reach, yield is big, energy consumption is low, the rate of recovery is high, dirty
Contaminate small purpose.
The content of the invention
The present embodiments relate to a kind of oxygen Electricity Federation to close calcium carbide smelting furnace and system, can at least solve the part of prior art
Defect.
The present embodiments relate to a kind of oxygen Electricity Federation to close calcium carbide smelting furnace, including flash smelting body of heater, the flash smelting
Body of heater is provided with mixing nozzle, and the mixing nozzle is connected with the carbon-based raw material supply mechanism of powdery, powdered calcium based raw material supply machine
Structure and oxygen-containing gas conveying mechanism, the carbon-based raw material of powdery, powdered calcium based raw material and oxygen-containing gas spray into institute by the mixing nozzle
State reaction in flash smelting furnace body and form oxygen heating reaction area；The flash smelting body of heater bottom has reaction zone molten bath, described anti-
Ying Qu molten baths extend to form fining cell molten bath to the wherein side of the flash smelting body of heater, and above the fining cell molten bath
Electrode is set to refine body of heater, the electrode refining body of heater is provided with the electrode for being used for inserting in the fining cell molten bath, the essence
Refining area molten bath is provided with discharging opening.
As one of embodiment, the flash smelting body of heater is provided with the first flue, and the electrode refining body of heater is located at institute
State side of first flue away from the oxygen heating reaction area.
As one of embodiment, from the reaction zone molten bath to the fining cell molten bath, the residing height in molten bath bottom is gradually
Reduce.
As one of embodiment, the electrode is 3, and 3 electrodes are arranged in equilateral triangle.
As one of embodiment, the electrode refining body of heater is provided with the second flue.
The embodiment of the present invention further relates to a kind of oxygen Electricity Federation and closes calcium carbide smelting system, including calcium carbide is closed in oxygen Electricity Federation as described above
Smelting furnace, the carbon-based raw material supply mechanism of powdery include carbon-based raw material powder unit and carbon-based raw material drying unit, the powder
Shape calcium based raw material organization of supply includes calcium based raw material powder unit and calcium based raw material drying unit.
As one of embodiment, the flash smelting body of heater is provided with the first flue, and the electrode refining body of heater is provided with
Second flue, first flue and second flue are connected with gas cleaning system.
As one of embodiment, the gas cleaning system includes the deduster being sequentially connected along flue gas circulating direction and changed
Hot device, the heat exchanger exit end are connected by flue with coal gas user.
The embodiment of the present invention at least realizes following beneficial effect：Calcium carbide is produced using the method for flash smelting, can be abundant
Using the active surface of powder raw material, strengthen calcium carbide and smelt course of reaction, reduce reaction temperature, shorten the reaction time；Utilize electricity
The electric energy of the high-energy-density of pole accelerates calcium carbide reaction of formation process, and promotes calcium carbide reaction fully to complete.It is provided by the invention
Calcium carbide melting furnace thermal efficiency is high, and fusion process is fast, shortens the heat, and improves production efficiency, is advantageously implemented different brackets energy
The rational configuration in source uses and reduced energy consumption.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation that calcium carbide smelting furnace is closed in oxygen Electricity Federation provided in an embodiment of the present invention；
Fig. 2 is the structural representation that calcium carbide smelting system is closed in oxygen Electricity Federation provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
Embodiment one
The present embodiments relate to a kind of oxygen Electricity Federation to close calcium carbide method of smelting, comprises the following steps：
Step 1, the carbon-based raw material of powdery and powdered calcium based raw material are prepared, and to the carbon-based raw material of powdery and powdered calcium based raw material
Processing is dried.Wherein, during preparing raw material, the particle diameter of the carbon-based raw material of the powdery and powdered calcium based raw material is controlled to exist
In the range of 0.07 ~ 1mm, it is in fine-powdered to make carbon-based raw material and calcium based raw material, has higher surface-active, is melted so as to strengthen calcium carbide
Speed is refined, reduces reaction temperature.In drying process process, the moisture in the carbon-based raw material of the powdery and powdered calcium based raw material is controlled
Percentage by weight below 0.3% so that carbon-based raw material and calcium based raw material can be used for flash smelting.
Step 2, the carbon-based raw material of powdery, powdered calcium based raw material and oxygen-containing gas are sprayed into progress flash in smelting furnace 101 and melted
Refining, oxygen heating reaction area 3 is formed in the smelting furnace 101, the temperature control of oxygen heating reaction area 3 at 1600~2000 DEG C, with
CaC is formed in the molten bath of the bottom of smelting furnace 1012- CaO congruent meltings layer 4.Above-mentioned smelting furnace 101 uses Flash Smelting Furnace, and powdery is carbon-based
Raw material, powdered calcium based raw material and oxygen-containing gas uniformly mix in the mixing nozzle 2 of Flash Smelting Furnace, and to spray into Flash Smelting Furnace at a high speed
It is interior, reaction rate can be effectively improved, wherein, the injecting velocity of mixing nozzle 2 is more than 50m/s.Calcium carbide generating process it is most basic
Feature is to form liquid low temperature CaC2- CaO congruent meltings layer 4, by this layer, carbide liquid could be purified constantly, and the eutectic
Presence allow calcium carbide under conditions of less than its fusing point smelting furnace discharged with molten state.By by the temperature of oxygen heating reaction area 3
Control can control course of reaction constantly to form CaC at 1600~2000 DEG C2- CaO congruent meltings layer 4.Therefore, in control compound
The mol ratio of carbon and calcium oxide is 1.5:1~3:1, oxygen consumption is 600 ~ 1600Nm3/t carbon, can meet above-mentioned requirements, is obtained good
Good reaction effect.Wherein, a part of carbon-based raw material and oxygen combustion heat release；A part of carbon-based raw material and calcium based raw material are anti-rapidly
Calcium carbide CaC should be generated2, CO caused by course of reaction then can be with oxygen combustion formation auxiliary heat release, reaction generation CaC2- CaO congruent meltings
Thing falls into molten bath, forms CaC2- CaO congruent meltings layer 4, CaC2CaO and C in-CaO congruent meltings layer 4 continues reaction generation calcium carbide CaC2。
In course of reaction can the real time measure temperature of oxygen heating reaction area 3, to adjust the addition of each raw material in compound in time so that molten
Refining reaction is continual and steady to be carried out.
Step 3, in the CaC2Insertion electrode 12 heats in-CaO congruent meltings layer 4, forms electrode fining cell 10.The electrode
12 use graphite electrode, on the one hand can provide the source with the C of CaO reactions in congruent melting layer 4, promote calcium carbide reaction of formation fully complete
Into effectively improving the purity of calcium carbide in carbide liquid, on the other hand, the high-energy-density heated using electrode 12 can accelerate CaC2-
Calcium carbide reaction of formation speed, also can promote calcium carbide reaction of formation fully to complete, effectively improve formation efficiency in CaO congruent meltings layer 4.Such as
Fig. 1, preferably, the electrode 12 is 3,3 electrodes 12 are arranged in equilateral triangle, and are arranged in electrode fining cell
10 body of heater centers, the uniformity of calcium carbide production reaction in electrode fining cell 10 can be improved, makes the progress that reaction is more stable.
In addition, the electrode fining cell 10 is located remotely from each other setting with the oxygen heating reaction area 3, the oxygen-containing gas in oxygen heating reaction area 3 is avoided
Cause electrode 12 to aoxidize, influence the service life of electrode 12 and reaction stability.
Step 4, the molten bath discharge at the electrode fining cell 10 obtain carbide liquid.With the progress of purifying reaction, congruent melting
CaO and C sustained responses production calcium carbide in layer 4, therefore, constantly purification obtains carbide liquid, carbon-based raw material, calcium base in congruent melting layer 4
Ash content and impurity fusing slagging in the raw materials such as raw material are deposited in molten bath bottom.Such as Fig. 1, the molten bath bottom at electrode fining cell 10
Portion, slag liquid layer 6, calcium carbide liquid layer 5 and CaC are sequentially formed from bottom to top2- CaO congruent meltings layer 4, carbide liquid and slag liquid together timing or
Not timing is discharged from the discharging opening 7 on the molten bath at electrode fining cell 10.
Such as Fig. 1, preferably, from the oxygen heating reaction area 3 to the electrode fining cell 10, it is high residing for the molten bath bottom
Degree gradually reduces.That is the molten bath of the lower section of oxygen heating reaction area 3 is connected with the molten bath at electrode fining cell 10 by a gentle-slope type molten bath,
Gentle-slope type molten bath is by the CaC in the lower section molten bath of oxygen heating reaction area 32- CaO eutectics are introduced in the molten bath at electrode fining cell 10,
It is easy to refine by electrode 12 and improves CaC2The speed and effect that-CaO congruent meltings layer 4 purifies.The gradient in the gentle-slope type molten bath can root
According to the CaC in oxygen heating reaction area 32- CaO eutectics produce the factor such as speed and the affinability of electrode 12 and determined, realize that calcium carbide melts
Refining continuous production is defined.It is molten at electrode fining cell 10 because carbide liquid purifying velocity is very fast in electrode fining cell 10 such as Fig. 1
Tank depth should be big compared with other regions.
In the above method, the oxygen-containing gas is preferably to use industrial pure oxygen（Oxygen-containing 95% ~ 97%）.Set on flash furnace body
There is the first flue 8, to discharge flue gas caused by oxygen heating reaction area 3, it is anti-away from oxygen heat that electrode fining cell 10 is formed at the first flue 8
The side in area 3 is answered, the body of heater of electrode fining cell 10 is provided with the second flue 11, to discharge caused CO gas during purifying reaction
Body.The flue gas discharged through the flue 11 of the first flue 8 and second can be delivered to gas cleaning system 103 and handle to reclaim profit
With such as Fig. 2, being specifically as follows：Flue gas is utilized after the dedustings such as cyclone dust collectors through heat exchanger recovery heat（As generated electricity
Deng）, the flue gas for reclaiming heat can be supplied to coal gas user and comprehensively utilized.
Calcium carbide is produced using the method for flash smelting, the active surface of powder raw material can be made full use of, strengthens calcium carbide and smelts
Course of reaction, reaction temperature is reduced, shorten the reaction time；Accelerate calcium carbide generation anti-using the electric energy of the high-energy-density of electrode 12
Process is answered, and promotes calcium carbide reaction fully to complete.The present embodiment smelts calcium carbide using the united method of oxygen electricity, due to the hot method pair of oxygen
Have difficulties in the control calcium carbide extent of reaction, therefore be compensated for using the advantage of electrothermal way in this respect, so as to promote electricity
The abundant completion of stone reaction, improve the purity of calcium carbide in carbide liquid.In addition, electrothermal way, which is used in combination, in the hot method of oxygen can also realize difference
The rational configuration of the grade energy is used, and heat caused by the hot method of oxygen is mainly used in into heated material and molten bath so as to improve thermal effect
Rate, and heat caused by electrothermal way is mainly used in calcium carbide reaction of formation so as to accelerate reaction process and quality power money can be saved
Source.The calcium carbide method of smelting thermal efficiency provided by the invention is high, and fusion process is fast, shortens the heat, and can effectively improve production effect
Rate.
Embodiment two
Such as Fig. 1, the present embodiments relate to a kind of oxygen Electricity Federation to close calcium carbide smelting furnace 101, including flash smelting body of heater 1, institute
State flash smelting body of heater 1 and be provided with mixing nozzle 2, the mixing nozzle 2 is connected with the carbon-based raw material supply mechanism of powdery, powdered calcium
Based raw material organization of supply and oxygen-containing gas conveying mechanism, the carbon-based raw material of powdery, powdered calcium based raw material and oxygen-containing gas are by described mixed
Conjunction nozzle 2 sprays into reaction in the flash smelting body of heater 1 and forms oxygen heating reaction area 3；The bottom of flash smelting body of heater 1 has anti-
Ying Qu molten baths, the reaction zone molten bath extend to form fining cell molten bath to the wherein side of the flash smelting body of heater 1, and in institute
Stating fining cell molten bath top sets electrode to refine body of heater 9, and the electrode refining body of heater 9 is provided with to be melted for inserting the fining cell
Electrode 12 in pond, the fining cell molten bath are provided with discharging opening 7.Wherein, the oxygen-containing gas is preferably to use industrial pure oxygen
（Oxygen-containing 95% ~ 97%）；During production, in fining cell molten bath bottom, slag liquid layer 6, the and of calcium carbide liquid layer 5 are sequentially formed from bottom to top
CaC2Together timing or not timing are discharged from the discharging opening 7 for-CaO congruent meltings layer 4, carbide liquid and slag liquid；Therefore, discharging opening 7
Position should match with the height of calcium carbide liquid layer 5 and slag liquid layer 6, and it is correspondingly arranged at the bottom of fining cell molten bath side wall.Electrode 12
The CaC inserted in fining cell molten bath2In-CaO congruent meltings layer 4, constantly to promote calcium carbide reaction of formation to carry out；The electrode 12 is 3
Root, 3 electrodes 12 are arranged in equilateral triangle, and are arranged in the body of heater center of electrode fining cell 10, can improve electrode
The uniformity of calcium carbide production reaction, makes the progress that reaction is more stable in fining cell 10.Such as Fig. 1, due in electrode fining cell 10
Carbide liquid purifying velocity is very fast, and the pool depth at electrode fining cell 10 should be big compared with other regions.Flash smelting body of heater 1 can use
Existing flash furnace body, such as Outokumpu flash furnace body or because section's flash furnace body, oxygen heating reaction area 3 can be formed at Austria
Hold in the palm in the reaction tower of the general flash furnace body of elder brother or be formed in the burner hearth because of section's flash furnace body.
The structure of calcium carbide smelting furnace 101 is closed in continue above-mentioned oxygen Electricity Federation, and electrode fining cell 10 should be mutually remote with oxygen heating reaction area 3
From setting, avoid the oxygen-containing gas in oxygen heating reaction area 3 from causing electrode 12 to aoxidize, influence the service life of electrode 12 and stable reaction
Property.Such as Fig. 1, mixing nozzle 2 is on the side headwall of flash smelting body of heater 1, and on the opposite side body of heater of the side wall face
Provided with the first flue 8, the electrode refining body of heater 9 is located at side of first flue 8 away from the oxygen heating reaction area 3.
Further optimize the structure that calcium carbide smelting furnace 101 is closed in above-mentioned oxygen Electricity Federation, from the reaction zone molten bath to the refining
Area molten bath, the residing height in molten bath bottom gradually reduce.That is the molten bath of the lower section of oxygen heating reaction area 3 and the molten bath at electrode fining cell 10
Connected by a gentle-slope type molten bath, gentle-slope type molten bath is by the CaC in the lower section molten bath of oxygen heating reaction area 32- CaO eutectics introduce electricity
In molten bath at pole fining cell 10, it is easy to refine by electrode 12 and improves CaC2The speed and effect that-CaO congruent meltings layer 4 purifies.Should
The gradient in gentle-slope type molten bath can be according to the CaC in oxygen heating reaction area 32- CaO eutectics produce speed and the affinability of electrode 12 etc.
Factor determines, realizes that calcium carbide melting continuous production is defined.In the calcium carbide smelting furnace 101 that the present embodiment provides, the phase of oxygen heating reaction area 3
When in entrained-flow reactor, i.e., it is the collection for including entrained-flow reactor and electrode refining furnace that calcium carbide smelting furnace 101 is closed in this oxygen Electricity Federation
Into reactor, entrained-flow reactor is connected with electrode refining furnace by above-mentioned gentle-slope type molten bath, realizes that multiple operation smelts calcium carbide, can
The advantages of hot method of synthesis oxygen and electrothermal way smelt calcium carbide, effectively improve calcium carbide and smelt production efficiency and product quality.Embody
For：Because the hot method of oxygen has difficulties for the control calcium carbide extent of reaction, therefore it is subject to using the advantage of electrothermal way in this respect
Compensation, so as to promote the abundant completion that calcium carbide reacts, improve the purity of calcium carbide in carbide liquid.In addition, electricity is used in combination in the hot method of oxygen
Hot method can also realize the different brackets energy rational configuration use, by heat caused by the hot method of oxygen be mainly used in heated material and
Heat caused by electrothermal way is mainly used in calcium carbide reaction of formation so as to accelerate reaction process simultaneously by molten bath so as to improve the thermal efficiency
Quality power resource can be saved.
Above-mentioned first flue 8 is used to discharge flue gas caused by oxygen heating reaction area 3；The body of heater of electrode fining cell 10 is provided with the
Two flues 11, to discharge caused CO gases during purifying reaction.The cigarette discharged through the flue 11 of the first flue 8 and second
Gas can be delivered to gas cleaning system 103 and handle to recycle.
Close calcium carbide smelting furnace 101 and the oxygen Electricity Federation described in embodiment one can be used to close calcium carbide in the oxygen Electricity Federation that the present embodiment provides
Method of smelting produces calcium carbide.
Embodiment three
The present embodiments relate to a kind of oxygen Electricity Federation to close calcium carbide smelting system, including calcium carbide smelting furnace 101, the calcium carbide melting
Stove 101 closes calcium carbide smelting furnace 101 using the oxygen Electricity Federation provided in embodiment two, and here is omitted.Close calcium carbide in the oxygen Electricity Federation
The mixing nozzle 2 of smelting furnace 101 is connected with powder raw material supply system 102 and oxygen-containing gas conveying mechanism；Powder raw material is supplied
System 102 includes the carbon-based raw material supply mechanism of powdery and powdered calcium based raw material organization of supply, the carbon-based raw material supply machine of powdery
Structure includes carbon-based raw material powder unit and carbon-based raw material drying unit, and the powdered calcium based raw material organization of supply includes calcium based raw material
Powder unit and calcium based raw material drying unit processed.
Calcium carbide smelting furnace 101 is closed for above-mentioned oxygen Electricity Federation, flash smelting body of heater 1 is provided with the first flue 8, electrode refining furnace
Body 9 is provided with the second flue 11, and the first flue 8 and second flue 11 are connected with gas cleaning system 103, through the first cigarette
The flue gas that the flue 11 of road 8 and second is discharged is delivered to gas cleaning system 103 and handled to recycle., specifically can be with such as Fig. 2
For：Gas cleaning system 103 includes the deduster and heat exchanger being sequentially connected along flue gas circulating direction, and flue gas is through cyclone dust collectors
After dedusting, utilized through heat exchanger recovery heat（Such as generate electricity）, reclaim the flue gas after heat and can be supplied to coal gas user and enter
Row comprehensive utilization.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (8)
1. calcium carbide smelting furnace is closed in a kind of oxygen Electricity Federation, it is characterised in that：Including flash smelting body of heater, set on the flash smelting body of heater
There is a mixing nozzle, the mixing nozzle is connected with the carbon-based raw material supply mechanism of powdery, powdered calcium based raw material organization of supply and oxygen-containing
Gas transportation machine structure, the carbon-based raw material of powdery, powdered calcium based raw material and oxygen-containing gas spray into the flash by the mixing nozzle and melted
Reaction forms oxygen heating reaction area in furnace body；The flash smelting body of heater bottom has reaction zone molten bath, the reaction zone molten bath
Extend to form fining cell molten bath to the wherein side of the flash smelting body of heater, and electrode is set above the fining cell molten bath
Body of heater is refined, the electrode refining body of heater is provided with the electrode for being used for inserting in the fining cell molten bath, the fining cell molten bath
It is provided with discharging opening.
2. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1, it is characterised in that：The flash smelting body of heater is provided with
First flue, the electrode refining body of heater are located at side of first flue away from the oxygen heating reaction area.
3. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1 or 2, it is characterised in that：From the reaction zone molten bath extremely
The fining cell molten bath, the residing height in molten bath bottom gradually reduce.
4. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1 or 2, it is characterised in that：The electrode is 3,3 institutes
Electrode is stated to arrange in equilateral triangle.
5. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1 or 2, it is characterised in that：On the electrode refining body of heater
Provided with the second flue.
6. calcium carbide smelting system is closed in a kind of oxygen Electricity Federation, it is characterised in that：Including the oxygen as any one of claim 1 to 5
Calcium carbide smelting furnace is closed in Electricity Federation, and the carbon-based raw material supply mechanism of powdery includes carbon-based raw material powder unit and carbon-based raw material drying list
Member, the powdered calcium based raw material organization of supply include calcium based raw material powder unit and calcium based raw material drying unit.
7. calcium carbide smelting system is closed in oxygen Electricity Federation according to claim 6, it is characterised in that：Set on the flash smelting body of heater
There is the first flue, the electrode refining body of heater is provided with the second flue, and first flue and second flue are and coal gas
Cleaning system connects.
8. calcium carbide smelting system is closed in oxygen Electricity Federation according to claim 7, it is characterised in that：The gas cleaning system includes
The deduster and heat exchanger being sequentially connected along flue gas circulating direction, the heat exchanger exit end pass through flue and coal gas user
Connection.
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| CN201864574U (en) * | 2010-11-26 | 2011-06-15 | 河北联冠电极股份有限公司 | Calcium carbide furnace |
| CN103408013B (en) * | 2013-08-03 | 2015-06-24 | 石家庄新华能源环保科技股份有限公司 | Calcium carbide furnace with combination of oxygen heating method and electric heating method |
| CN203513286U (en) * | 2013-09-03 | 2014-04-02 | 石家庄新华能源环保科技股份有限公司 | Oxygen-heating-process calcium carbide furnace |
| CN204727615U (en) * | 2015-04-20 | 2015-10-28 | 北京神雾环境能源科技集团股份有限公司 | Furnace of calcium carbide |
| CN205170399U (en) * | 2015-11-04 | 2016-04-20 | 中冶南方工程技术有限公司 | Carbide smelting furnace and system are closed to oxygen electricity federation |
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