CN205170399U - Carbide smelting furnace and system are closed to oxygen electricity federation - Google Patents

Carbide smelting furnace and system are closed to oxygen electricity federation Download PDF

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Publication number
CN205170399U
CN205170399U CN201520867516.6U CN201520867516U CN205170399U CN 205170399 U CN205170399 U CN 205170399U CN 201520867516 U CN201520867516 U CN 201520867516U CN 205170399 U CN205170399 U CN 205170399U
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China
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oxygen
molten bath
raw
heater
calcium carbide
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CN201520867516.6U
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Chinese (zh)
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范小刚
陈洪智
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中冶南方工程技术有限公司
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Abstract

The utility model relates to a carbide smelting furnace is closed to the oxygen electricity federation, including the flash smelting furnace body, be equipped with mixing nozzle on the flash smelting furnace body, mixing nozzle is connected with likepowder carbon back raw material supply mechanism, likepowder calcium base raw material supply mechanism and oxygen containing gas conveying mechanism, flash smelting furnace body bottom has the reaction zone molten bath, and the reaction zone molten bath is extended to wherein one side of flash smelting furnace body and is formed the fining cell molten bath to set up the concise furnace body of electrode in fining cell molten bath top, be equipped with on the concise furnace body of electrode and be used for inserting the electrode in the fining cell molten bath, be equipped with the discharge gate on the fining cell molten bath. The utility model discloses a flash smelting's method production carbide, but the active surface of the likepowder raw materials of make full use of are reinforceed the carbide and are smelted reaction sequence, reduce the reaction temperature, the shortening reaction time, the electric energy that utilizes the high energy density of electrode accelerates carbide formation reaction process to promote carbide reaction to accomplish.

Description

Calcium carbide smelting furnace and system are closed in oxygen Electricity Federation
Technical field
The utility model belongs to technical field of calcium carbide production, is specifically related to a kind of oxygen Electricity Federation and closes calcium carbide smelting furnace and smelting system.
Background technology
Calcium carbide is the basic raw material of synthetic organic chemical manufacturing industry, and its main chemical compositions is carbide of calcium (CaC 2).Industrial calcium carbide production method is electric heating process and the hot method of oxygen mainly.
Electric heating process smelts calcium carbide, and be heat energy by electric arc furnace by electric energy conversion, the lime of heating particle diameter 5 ~ 30mm and carbon raw, produce calcium carbide under 2000 ~ 2200 DEG C of hot conditionss.Calcium carbide building-up reactions is a solid phase thermo-negative reaction, and the chemical dynamics process time is long; Because block stock contact area is little, have a strong impact on speed of reaction and heat and mass efficiency, therefore, electric heating process smelts the high temperature that calcium carbide needs more than 2000 DEG C.Electric heating process technical maturity, shortcoming adopts high-grade electric heat supply, and energy consumption is high, efficiency is low.
The hot method of oxygen smelts calcium carbide, is to be taken the lead in developing by front Baden, Federal Republic Of Germany phenylamino soda ash company, directly utilizes the combustion heat for calcium carbide production heat supply.The hot method of oxygen using the burning of carbonaceous fuel as thermal source, provide enough heats meet calcium carbide generate needed for temperature and endothermic heat of reaction.The hot method of oxygen avoids the twice transformation of energy, and its thermo-efficiency is significantly higher than electric heating process.But because the hot environment of the hot method of oxygen is different from electric heating process with the mode of motion of material, fuel combustion heat supply is also different from electric heating process with the impact of purity on calcium carbide melting, and the hot method of oxygen does not also obtain industrial application widely.However, the hot method of oxygen avoids using of electrode and consumes, and by-product gas (containing a large amount of CO) can utilize in coproduction, is conducive to reducing investment, cost-saving.Oxygen hot method calcium carbide production technology has vast potential for future development, and relevant fundamental research is still among deepening constantly.In the Patents (application number CN201310728767.1, CN201310729034.X, CN201310728116.2 etc.) preparing the method for calcium carbide of Shen Wu environmental energy scientific & technical corporation application, by calcium base and carbon back raw material after pyrolysis or calcination processing, prepare calcium carbide.Although these methods can improve speed of reaction, reduce energy consumption, be difficult to ensure that sufficient reacting completes, obtained calcium carbide grade is relatively low.
Flash smelting technique is widely used in nonferrous metallurgy industry, and this technique makes full use of the huge active surface of fine grinding material, the melting method of strengthening smelting reaction process.The technical characteristic of non-ferrous metal flash smelting is that after warm air or oxygen mix, at full speed (60 ~ 70m/s) sprays in reaction tower, produces high temperature (1450 ~ 1550 DEG C) in reaction zone by the powdery concentrate of deep dehydration (moisture be less than 0.3%).Flash smelting is by the smelting of more application in matte, and an outstanding advantages of this technique makes full use of the surface energy of fine ore and the combustion heat of sulfide, thus reaches that output is large, energy consumption is low, the rate of recovery is high, pollute little object.
Summary of the invention
The utility model embodiment relates to a kind of oxygen Electricity Federation and closes calcium carbide smelting furnace and system, at least can solve the segmental defect of prior art.
The utility model embodiment relates to a kind of oxygen Electricity Federation and closes calcium carbide smelting furnace, comprise flash smelting body of heater, described flash smelting body of heater is provided with mixing nozzle, described mixing nozzle is connected with powdery carbon back raw material supply mechanism, powdered calcium based raw material organization of supply and oxygen-containing gas transfer mechanism, and powdery carbon back raw material, powdered calcium based raw material and oxygen-containing gas spray into reaction in described flash smelting body of heater by described mixing nozzle and form oxygen heating reaction district; Bottom described flash smelting body of heater, there is molten bath, reaction zone, molten bath, described reaction zone extends to form fining cell molten bath to the wherein side of described flash smelting body of heater, and electrode refining body of heater is set above described fining cell molten bath, described electrode refining body of heater is provided with the electrode for inserting in described fining cell molten bath, and described fining cell molten bath is provided with discharge port.
As one of embodiment, described flash smelting body of heater is provided with the first flue, and described electrode refining body of heater is located at the side of described first flue away from described oxygen heating reaction district.
As one of embodiment, from molten bath, described reaction zone to described fining cell molten bath, reduce highly gradually residing for bottom molten bath.
As one of embodiment, described electrode is 3, and 3 described electrodes are that equilateral triangle is arranged.
As one of embodiment, described electrode refining body of heater is provided with the second flue.
The utility model embodiment also relates to a kind of oxygen Electricity Federation and closes calcium carbide smelting system, comprise oxygen Electricity Federation as above and close calcium carbide smelting furnace, described powdery carbon back raw material supply mechanism comprises carbon back raw material powder process unit and carbon back raw material drying unit, and described powdered calcium based raw material organization of supply comprises calcium based raw material powder process unit and calcium based raw material drying unit.
As one of embodiment, described flash smelting body of heater is provided with the first flue, and described electrode refining body of heater is provided with the second flue, and described first flue and described second flue are all connected with gas cleaning system.
As one of embodiment, described gas cleaning system comprises the fly-ash separator and interchanger that connect successively along flue gas circulating direction, and described heat exchanger exit end is communicated with coal gas user by flue.
The utility model embodiment at least achieves following beneficial effect: adopt the method for flash smelting to produce calcium carbide, can make full use of the active surface of powder raw material, strengthening calcium carbide smelts reaction process, reduces temperature of reaction, Reaction time shorten; Utilize the electric energy of the high-energy-density of electrode to accelerate calcium carbide formation reaction process, and promote that calcium carbide sufficient reacting completes.The calcium carbide smelting furnace thermo-efficiency that the utility model provides is high, and fusion process is fast, and shorten the heat, enhance productivity, the rational configuration being conducive to realizing the different grades energy uses and reduces energy consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the oxygen Electricity Federation conjunction calcium carbide smelting furnace that Fig. 1 provides for the utility model embodiment;
The structural representation of the oxygen Electricity Federation conjunction calcium carbide smelting system that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of the utility model protection.
embodiment one
The utility model embodiment relates to a kind of oxygen Electricity Federation and closes calcium carbide melting method, comprises the following steps:
Step one, prepares powdery carbon back raw material and powdered calcium based raw material, and carries out drying treatment to powdery carbon back raw material and powdered calcium based raw material.Wherein, in raw materials process, control the particle diameter of described powdery carbon back raw material and powdered calcium based raw material all within the scope of 0.07 ~ 1mm, carbon back raw material and calcium based raw material is made to be finely powdered, there is higher surfactivity, thus strengthening calcium carbide melting speed, reduce temperature of reaction.In drying treatment process, the weight percent controlling the moisture in described powdery carbon back raw material and powdered calcium based raw material, all below 0.3%, makes carbon back raw material and calcium based raw material can be used for flash smelting.
Step 2, powdery carbon back raw material, powdered calcium based raw material and oxygen-containing gas are sprayed in smelting furnace 101 and carries out flash smelting, in described smelting furnace 101, form oxygen heating reaction district 3, this oxygen heating reaction district 3 temperature controls at 1600 ~ 2000 DEG C, to form CaC in the molten bath bottom described smelting furnace 101 2-CaO congruent melting layer 4.Above-mentioned smelting furnace 101 adopts Flash Smelting Furnace, powdery carbon back raw material, powdered calcium based raw material and oxygen-containing gas be Homogeneous phase mixing in the mixing nozzle 2 of Flash Smelting Furnace, and to spray in Flash Smelting Furnace at a high speed, effectively can improve speed of reaction, wherein, the injecting velocity of mixing nozzle 2 is greater than 50m/s.The most basic characteristics of calcium carbide generative process form liquid low temperature CaC 2-CaO congruent melting layer 4, through this one deck, carbide liquid could constantly be purified, and the existence of this eutectic makes calcium carbide under lower than the condition of its fusing point, can discharge smelting furnace with molten state.By oxygen heating reaction district 3 temperature is controlled at 1600 ~ 2000 DEG C, reaction process can be controlled and constantly form CaC 2-CaO congruent melting layer 4.For this reason, the mol ratio controlling carbon and calcium oxide in compound is 1.5:1 ~ 3:1, and oxygen consumption is 600 ~ 1600Nm3/t carbon, can meet above-mentioned requirements, obtains good reaction effect.Wherein, a part of carbon back raw material and oxygen combustion heat release; Part carbon back raw material and calcium based raw material react rapidly and generate calcium carbide CaC 2, the CO that reaction process produces then can form auxiliary heat release with oxygen combustion, and reaction produces CaC 2-CaO eutectic falls into molten bath, forms CaC 2-CaO congruent melting layer 4, CaC 2caO and C in-CaO congruent melting layer 4 continues reaction and generates calcium carbide CaC 2.Can this oxygen heating reaction district 3 temperature of the real time measure in reaction process, to adjust the add-on of each raw material in compound in time, melting reaction is carried out continually and steadily.
Step 3, at described CaC 2in-CaO congruent melting layer 4, electrode insertion 12 heats, and forms electrode fining cell 10.This electrode 12 adopts Graphite Electrodes, can provide the source of the C reacted with CaO in congruent melting layer 4 on the one hand, and promote that calcium carbide formation reaction fully completes, effectively improve the purity of calcium carbide in carbide liquid, on the other hand, the high-energy-density utilizing electrode 12 to heat can accelerate CaC 2calcium carbide formation reaction speed in-CaO congruent melting layer 4, also can promote that calcium carbide formation reaction fully completes, and effectively improves formation efficiency.As Fig. 1, as preferably, described electrode 12 is 3, and 3 described electrodes 12 are arranged in equilateral triangle, and are arranged in electrode fining cell 10 body of heater central position, can improve calcium carbide in electrode fining cell 10 and produce the homogeneity of reaction, make the carrying out that reaction is more stable.In addition, described electrode fining cell 10 and described oxygen heating reaction district 3, mutually away from setting, avoid the oxygen-containing gas in oxygen heating reaction district 3 to cause electrode 12 to be oxidized, affect electrode 12 work-ing life and reaction stability.
Step 4, the molten bath discharge at described electrode fining cell 10 place obtains carbide liquid.Along with the carrying out of purifying reaction, CaO and the C sustained reaction in congruent melting layer 4 produces calcium carbide, and therefore, constantly purify and obtain carbide liquid in congruent melting layer 4, the ash content in the raw materials such as carbon back raw material, calcium based raw material and impurity fusing slagging are deposited in bottom molten bath.As Fig. 1, bottom the molten bath at electrode fining cell 10 place, form slag liquid layer 6, calcium carbide liquid layer 5 and CaC successively from bottom to top 2-CaO congruent melting layer 4, carbide liquid and slag liquid together timing or not timing are discharged from the discharge port 7 on the molten bath being located at electrode fining cell 10.
As Fig. 1, as preferably, from described oxygen heating reaction district 3 to described electrode fining cell 10, reduce highly gradually residing for bottom described molten bath.Namely the molten bath below oxygen heating reaction district 3 is communicated with by a gentle-slope type molten bath with the molten bath at electrode fining cell 10 place, and gentle-slope type molten bath is by the CaC in molten bath below oxygen heating reaction district 3 2-CaO eutectic is introduced in the molten bath at electrode fining cell 10 place, is convenient to improve CaC by electrode 12 refining 2the speed that-CaO congruent melting layer 4 is purified and effect.The gradient in this gentle-slope type molten bath can according to the CaC in oxygen heating reaction district 3 2-CaO eutectic produces the factor such as speed and electrode 12 affinability and determines, realizes calcium carbide melting continuous seepage and is as the criterion.As Fig. 1, because carbide liquid purifying velocity in electrode fining cell 10 is very fast, the pool depth at electrode fining cell 10 place should be large compared with other regions.
In aforesaid method, described oxygen-containing gas preferably adopts industrial pure oxygen (containing oxygen 95% ~ 97%).Flash Smelting Furnace body of heater is provided with the first flue 8, to discharge the flue gas that oxygen heating reaction district 3 produces, electrode fining cell 10 is formed at the side of the first flue 8 away from oxygen heating reaction district 3, and the body of heater of electrode fining cell 10 is provided with the second flue 11, to discharge the CO gas produced in purifying reaction process.The flue gas of discharging through described first flue 8 and the second flue 11 all can be delivered to gas cleaning system 103 and process to recycle, as Fig. 2, be specifically as follows: flue gas is after the dedustings such as tornado dust collector, reclaim heat through interchanger to carry out utilizing (as generating etc.), the flue gas reclaiming heat can supply coal gas user and fully utilize.
Adopt the method for flash smelting to produce calcium carbide, can make full use of the active surface of powder raw material, strengthening calcium carbide smelts reaction process, reduces temperature of reaction, Reaction time shorten; Utilize the electric energy of the high-energy-density of electrode 12 to accelerate calcium carbide formation reaction process, and promote that calcium carbide sufficient reacting completes.The method that the present embodiment adopts oxygen Electricity Federation to close smelts calcium carbide, because the hot method of oxygen has difficulties for control calcium carbide level of response, therefore electric heating process advantage in this respect can be utilized to be compensated, thus promote fully completing of calcium carbide reaction, improve the purity of calcium carbide in carbide liquid.In addition, the rational configuration that oxygen hot method conbined usage electric heating process can also realize the different grades energy uses, the heat that hot for oxygen method produces be mainly used in heated material and molten bath thus improve thermo-efficiency, and the heat that electric heating process produces being mainly used in calcium carbide formation reaction thus accelerated reaction process quality power resource can be saved.The calcium carbide melting method thermo-efficiency that the utility model provides is high, and fusion process is fast, shortens the heat, can effectively enhance productivity.
embodiment two
As Fig. 1, the utility model embodiment relates to a kind of oxygen Electricity Federation and closes calcium carbide smelting furnace 101, comprise flash smelting body of heater 1, described flash smelting body of heater 1 is provided with mixing nozzle 2, described mixing nozzle 2 is connected with powdery carbon back raw material supply mechanism, powdered calcium based raw material organization of supply and oxygen-containing gas transfer mechanism, and powdery carbon back raw material, powdered calcium based raw material and oxygen-containing gas spray into reaction in described flash smelting body of heater 1 by described mixing nozzle 2 and form oxygen heating reaction district 3; Bottom described flash smelting body of heater 1, there is molten bath, reaction zone, molten bath, described reaction zone extends to form fining cell molten bath to the wherein side of described flash smelting body of heater 1, and electrode refining body of heater 9 is set above described fining cell molten bath, described electrode refining body of heater 9 is provided with the electrode 12 for inserting in described fining cell molten bath, and described fining cell molten bath is provided with discharge port 7.Wherein, described oxygen-containing gas preferably adopts industrial pure oxygen (containing oxygen 95% ~ 97%); During production, bottom fining cell molten bath, form slag liquid layer 6, calcium carbide liquid layer 5 and CaC successively from bottom to top 2-CaO congruent melting layer 4, carbide liquid and slag liquid together timing or not timing are discharged from described discharge port 7; Therefore, the position of discharge port 7 should match with the height of calcium carbide liquid layer 5 and slag liquid layer 6, and its correspondence is located at the bottom of fining cell molten bath sidewall.Electrode 12 inserts the CaC in fining cell molten bath 2in-CaO congruent melting layer 4, constantly to promote that calcium carbide formation reaction is carried out; Described electrode 12 is 3, and 3 described electrodes 12 are arranged in equilateral triangle, and are arranged in electrode fining cell 10 body of heater central position, can improve calcium carbide in electrode fining cell 10 and produce the homogeneity of reaction, make the carrying out that reaction is more stable.As Fig. 1, because carbide liquid purifying velocity in electrode fining cell 10 is very fast, the pool depth at electrode fining cell 10 place should be large compared with other regions.Flash smelting body of heater 1 can adopt existing Flash Smelting Furnace body of heater, as Outokumpu Flash Smelting Furnace body of heater or because of section's Flash Smelting Furnace body of heater etc., in the reaction tower that oxygen heating reaction district 3 can be formed at Outokumpu Flash Smelting Furnace body of heater or in the burner hearth being formed at because of section's Flash Smelting Furnace body of heater.
The structure of calcium carbide smelting furnace 101 is closed in above-mentioned oxygen Electricity Federation of continuing, and electrode fining cell 10 and oxygen heating reaction district 3 mutually away from setting, should avoid the oxygen-containing gas in oxygen heating reaction district 3 to cause electrode 12 to be oxidized, affect electrode 12 work-ing life and reaction stability.As Fig. 1, mixing nozzle 2 is located on the side headwall of flash smelting body of heater 1, and the opposite side body of heater just right with this side wall is provided with the first flue 8, and described electrode refining body of heater 9 is located at the side of described first flue 8 away from described oxygen heating reaction district 3.
The structure of calcium carbide smelting furnace 101 is closed in the above-mentioned oxygen Electricity Federation of further optimization, from molten bath, described reaction zone to described fining cell molten bath, reduces highly gradually residing for bottom molten bath.Namely the molten bath below oxygen heating reaction district 3 is communicated with by a gentle-slope type molten bath with the molten bath at electrode fining cell 10 place, and gentle-slope type molten bath is by the CaC in molten bath below oxygen heating reaction district 3 2-CaO eutectic is introduced in the molten bath at electrode fining cell 10 place, is convenient to improve CaC by electrode 12 refining 2the speed that-CaO congruent melting layer 4 is purified and effect.The gradient in this gentle-slope type molten bath can according to the CaC in oxygen heating reaction district 3 2-CaO eutectic produces the factor such as speed and electrode 12 affinability and determines, realizes calcium carbide melting continuous seepage and is as the criterion.In the calcium carbide smelting furnace 101 that the present embodiment provides, oxygen heating reaction district 3 is equivalent to entrained-flow reactor, namely calcium carbide smelting furnace 101 is closed in this oxygen Electricity Federation is the integrated reactor comprising entrained-flow reactor and electrode refining furnace, entrained-flow reactor is connected by above-mentioned gentle-slope type molten bath with electrode refining furnace, realize multiple operation and smelt calcium carbide, comprehensively the hot method of oxygen and electric heating process can smelt the advantage of calcium carbide, effectively improve calcium carbide and smelt production efficiency and quality product.Be embodied as: because the hot method of oxygen has difficulties for control calcium carbide level of response, electric heating process advantage in this respect therefore can be utilized to be compensated, thus promote fully completing of calcium carbide reaction, improve the purity of calcium carbide in carbide liquid.In addition, the rational configuration that oxygen hot method conbined usage electric heating process can also realize the different grades energy uses, the heat that hot for oxygen method produces be mainly used in heated material and molten bath thus improve thermo-efficiency, and the heat that electric heating process produces being mainly used in calcium carbide formation reaction thus accelerated reaction process quality power resource can be saved.
The flue gas that above-mentioned first flue 8 produces for discharging oxygen heating reaction district 3; The body of heater of electrode fining cell 10 is provided with the second flue 11, to discharge the CO gas produced in purifying reaction process.The flue gas of discharging through described first flue 8 and the second flue 11 all can be delivered to gas cleaning system 103 and process to recycle.
The oxygen Electricity Federation that the present embodiment provides is closed calcium carbide smelting furnace 101 and the oxygen Electricity Federation described in embodiment one can be used to close calcium carbide melting method production calcium carbide.
embodiment three
The utility model embodiment relates to a kind of oxygen Electricity Federation and closes calcium carbide smelting system, comprises calcium carbide smelting furnace 101, and this calcium carbide smelting furnace 101 adopts the oxygen Electricity Federation provided in embodiment two to close calcium carbide smelting furnace 101, repeats no more herein.The mixing nozzle 2 that calcium carbide smelting furnace 101 is closed in this oxygen Electricity Federation is connected with powder raw material supply system 102 and oxygen-containing gas transfer mechanism; Powder raw material supply system 102 comprises powdery carbon back raw material supply mechanism and powdered calcium based raw material organization of supply, described powdery carbon back raw material supply mechanism comprises carbon back raw material powder process unit and carbon back raw material drying unit, and described powdered calcium based raw material organization of supply comprises calcium based raw material powder process unit and calcium based raw material drying unit.
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 body of heater 9 is provided with the second flue 11, first flue 8 and described second flue 11 are all connected with gas cleaning system 103, and the flue gas of discharging through the first flue 8 and the second flue 11 is delivered to gas cleaning system 103 and processes to recycle.As Fig. 2, be specifically as follows: gas cleaning system 103 comprises the fly-ash separator and interchanger that connect successively along flue gas circulating direction, flue gas is after the dedustings such as tornado dust collector, reclaim heat through interchanger to carry out utilizing (as generating etc.), the flue gas reclaimed after heat can supply coal gas user and fully utilize.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (8)

1. calcium carbide smelting furnace is closed in an oxygen Electricity Federation, it is characterized in that: comprise flash smelting body of heater, described flash smelting body of heater is provided with mixing nozzle, described mixing nozzle is connected with powdery carbon back raw material supply mechanism, powdered calcium based raw material organization of supply and oxygen-containing gas transfer mechanism, and powdery carbon back raw material, powdered calcium based raw material and oxygen-containing gas spray into reaction in described flash smelting body of heater by described mixing nozzle and form oxygen heating reaction district; Bottom described flash smelting body of heater, there is molten bath, reaction zone, molten bath, described reaction zone extends to form fining cell molten bath to the wherein side of described flash smelting body of heater, and electrode refining body of heater is set above described fining cell molten bath, described electrode refining body of heater is provided with the electrode for inserting in described fining cell molten bath, and described fining cell molten bath is provided with discharge port.
2. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1, and it is characterized in that: described flash smelting body of heater is provided with the first flue, described electrode refining body of heater is located at the side of described first flue away from described oxygen heating reaction district.
3. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1 and 2, it is characterized in that: from molten bath, described reaction zone to described fining cell molten bath, reduce highly gradually residing for bottom molten bath.
4. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1 and 2, it is characterized in that: described electrode is 3, and 3 described electrodes are that equilateral triangle is arranged.
5. calcium carbide smelting furnace is closed in oxygen Electricity Federation according to claim 1 and 2, it is characterized in that: described electrode refining body of heater is provided with the second flue.
6. calcium carbide smelting system is closed in an oxygen Electricity Federation, it is characterized in that: calcium carbide smelting furnace is closed in the oxygen Electricity Federation comprised according to any one of claim 1 to 5, described powdery carbon back raw material supply mechanism comprises carbon back raw material powder process unit and carbon back raw material drying unit, and described powdered calcium based raw material organization of supply comprises calcium based raw material powder process 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 characterized in that: described flash smelting body of heater is provided with the first flue, described electrode refining body of heater is provided with the second flue, and described first flue and described second flue are all connected with gas cleaning system.
8. calcium carbide smelting system is closed in oxygen Electricity Federation according to claim 7, and it is characterized in that: described gas cleaning system comprises the fly-ash separator and interchanger that connect successively along flue gas circulating direction, described heat exchanger exit end is communicated with coal gas user by flue.
CN201520867516.6U 2015-11-04 2015-11-04 Carbide smelting furnace and system are closed to oxygen electricity federation CN205170399U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293496A (en) * 2015-11-04 2016-02-03 中冶南方工程技术有限公司 Furnace and system for smelting calcium carbide by combining oxygen with electricity
CN106892429A (en) * 2017-03-09 2017-06-27 神雾环保技术股份有限公司 A kind of method of furnace of calcium carbide and production calcium carbide
CN107262693A (en) * 2017-06-29 2017-10-20 马鞍山市兴隆铸造有限公司 The smooth casting of pressure adjustable casting is dust-proof to make stove
CN107262692A (en) * 2017-06-29 2017-10-20 马鞍山市兴隆铸造有限公司 Casting boiler centrifugal casting detection casting device
CN107321960A (en) * 2017-06-29 2017-11-07 马鞍山市兴隆铸造有限公司 Casting vacuum casting, which is quickly removed, uses foundry furnace
CN107321966A (en) * 2017-06-29 2017-11-07 马鞍山市兴隆铸造有限公司 The continuous cutting foundry furnace of tubulose casting ingot

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293496A (en) * 2015-11-04 2016-02-03 中冶南方工程技术有限公司 Furnace and system for smelting calcium carbide by combining oxygen with electricity
CN106892429A (en) * 2017-03-09 2017-06-27 神雾环保技术股份有限公司 A kind of method of furnace of calcium carbide and production calcium carbide
CN107262693A (en) * 2017-06-29 2017-10-20 马鞍山市兴隆铸造有限公司 The smooth casting of pressure adjustable casting is dust-proof to make stove
CN107262692A (en) * 2017-06-29 2017-10-20 马鞍山市兴隆铸造有限公司 Casting boiler centrifugal casting detection casting device
CN107321960A (en) * 2017-06-29 2017-11-07 马鞍山市兴隆铸造有限公司 Casting vacuum casting, which is quickly removed, uses foundry furnace
CN107321966A (en) * 2017-06-29 2017-11-07 马鞍山市兴隆铸造有限公司 The continuous cutting foundry furnace of tubulose casting ingot

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