CN101830464A - Technique for producing calcium carbide and cogeneration by two-stage method and device thereof - Google Patents
Technique for producing calcium carbide and cogeneration by two-stage method and device thereof Download PDFInfo
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- CN101830464A CN101830464A CN201010171819A CN201010171819A CN101830464A CN 101830464 A CN101830464 A CN 101830464A CN 201010171819 A CN201010171819 A CN 201010171819A CN 201010171819 A CN201010171819 A CN 201010171819A CN 101830464 A CN101830464 A CN 101830464A
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention relates to a technique for producing calcium carbide and cogeneration by a two-stage method and a device thereof. The technique comprises the following steps: after being preheated at a shaft furnace at the upper section, massive carbonous raw material and massive calcic raw material enter an arc furnace at the lower section; while blowing oxygen and coal powder and supplying heat by the electrode in the arc furnace, the raw materials react to produce calcium carbide; and the produced calcium carbide furnace gas is dedusted and combusted by a gas turbine so as to drive the generator to generate power, and sensible heat of exhaust gas is recycled by an exhaust-heat boiler, thereby centrally supplying heat to cities and towns. The invention has the advantages of capability of continuous production, high yield, low investment, low energy consumption, high calcium carbide grade, energy saving, high efficiency and investment saving, and realizes coordinated development of economy, environment and energy sources.
Description
Technical field
The invention belongs to technology and device that a kind of calcium carbide is produced, relate in particular to the technology and the device of a kind of two-stage method calcium carbide production and cogeneration.
Background technology
The main component of calcium carbide is CaC
2, be the important source material of organic synthesis industry, in chemical industry, have vital role.The method of producing calcium carbide mainly contains electric heating process and the hot method of oxygen, present industrial production calcium carbide all adopts electric heating process, existing more than 110 year of this method developing history, although adopted technology such as coreless armature, airtight production and automatic control in recent years, but still need to consume a large amount of electric energy, general power consumption is 3500～3800kWh/t calcium carbide, and comprehensive energy consumption is very high, is unfavorable for energy-conservation and social Sustainable development.
It is still at the experimental stage at present that the hot method of oxygen is produced calcium carbide, production has a large amount of bibliographical informations about the hot method calcium carbide of oxygen both at home and abroad, as: " calcium carbide process for processing and product development utilization and pollution " book has been introduced Germany the third-largest calcium carbide company---and Baden aniline soda ash company has just built up the hot method half suitability for industrialized production calcium carbide device of oxygen as far back as nineteen thirty-nine, resumed production in 1948, adopt methane oxygen pyrolysis method, shaft furnace throughput (contains CaC for 70～100 tons for the daily output calcium carbide
280%).The clear 61-178412 of Japanese Patent discloses with full Jiao of shaft furnace, pure oxygen or the hot method Laboratory Production of oxygen enrichment oxygen calcium carbide.Domestic patent CN1843907A " method of preparing calcium carbide by oxygen-fuel blowing of high furnace and device " introduced and adopted the oxygen-rich air preheating, be fuel with the coke, the hot method of oxygen that is aided with coal injection and heavy oil etc. produces the method and the device of calcium carbide.Technology and device that two-stage method is produced calcium carbide and cogeneration do not appear in the newspapers.
Summary of the invention
The purpose of this invention is to provide a kind of two-stage method and produce the technology and the device of calcium carbide and cogeneration.
Block carbon raw material and block calcic raw material are entered in the hypomere electric arc furnace after the preheating of epimere shaft furnace, in electric arc furnace, produce calcium carbide by oxygen and breeze blowing and the compound heat supply reaction of electrode, the calcium carbide furnace gas that produces drives generator for electricity generation by gas turbine combustion after udst separation, the waste gas sensible heat is reclaimed by waste heat boiler, can give the cities and towns central heating.
Preparation method of the present invention is as follows:
(1), contain calcareous raw material, carbon raw material respectively through broken, be sized to release mesh after, proportion;
(2), contain calcareous raw material and the carbon raw material after cooperating enters shaft furnace from the cold burden opening for feed at shaft furnace top, heat is mixed furnace gas and is entered in the shaft furnace from the hot furnace gas import of shaft furnace and contact with carbon raw material with calcareous raw material, calcareous raw material and carbon raw material are mixed the furnace gas heating by heat, remove moisture content contained in the raw material, and after making calcareous raw material and carbon raw material temperature be increased to 800～1300 ℃ by normal temperature, come out from the shaft furnace bottom, heat material opening for feed by auger stripper, electric arc furnace enters electric arc furnace, and heat is mixed the CO in the furnace gas
2By charcoal scorching hot in the shaft furnace further reduction and gaseous be CO, cold thick CO is from the black furnace gas outlet discharge of shaft furnace;
(3), the oxygen of coal dust in coal nozzle sprays into electric arc furnace, after preheating is sprayed in the electric arc furnace by oxygen jet, calcareous raw material in the electric furnace and carbon raw material are under the acting in conjunction of electrode arc heat and coal dust firing heat, temperature rises to 1700～2200 ℃, reaction generates calcium carbide, generates the thick CO gas of heat and a small amount of CO simultaneously
2The mixing furnace gas of gas composition, heat is mixed furnace gas and is mixed the furnace gas export discharge by the heat of electric arc furnace, mixing the furnace gas import from the heat of shaft furnace bottom enters in the shaft furnace, the high temperature calcium carbide liquid is discharged from the carbide liquid outlet of electric arc furnace bottom, and carry out heat exchange with oxygen, calcium carbide liquid is cooled, and generates the calcium carbide product, and oxygen is preheated;
(4), cold thick CO through fly-ash separator, the further dedusting of water cooler, cooling, makes its dustiness drop to 5mg/Nm again
3Below, temperature is reduced to 30～45 ℃, and compressed then machine boosts, as the fuel gas of internal combustion turbine;
(5), fuel gas enters gas turbine combustion, temperature rises to 1000～1300 ℃, elevated temperature heat waste gas promotes the turbine rotation, drives the generating set generating; Institute's generated energy is personal for electric arc furnace earlier, supplies outside remainder can be incorporated into the power networks;
(6), the internal combustion turbine heatrejection of discharging is 450～600 ℃, enters waste heat boiler and produces high-temperature steam or hot water, for cities and towns central heating use, spent air temperture is reduced to room temperature, drains into atmosphere from chimney.
Aforesaid calcareous raw material and carbon raw material mass ratio are 1: (1.1～3).
Aforesaid calcareous raw material and carbon raw material granularity are 8～50mm.
Aforesaid carbon raw material is coal, coke or the mixing of the two of ash＜18%, and the calcic raw material is the carbide slag of Wingdale, CaO content＞65% of CaO content＞48%, in the unslaked lime one or more.
The temperature of aforesaid cold thick CO gas is 300～600 ℃, and dustiness is 50～100g/Nm
3
The temperature of aforesaid calcium carbide product is 200～300 ℃.
Aforesaid fly-ash separator can adopt tornado dust collector, electric precipitator or sack cleaner; Cold mode between water cooler adopts does not produce sewage.
For realizing the purpose of foregoing invention, design has two-stage method to produce the calcium carbide device, it is made up of epimere shaft furnace and hypomere electric arc furnace, it is characterized in that shaft furnace is a cylinder mode, peripheral hardware thermal insulation layer, top are the cold burden opening for feeds, and the outlet of black furnace gas is arranged at top, the bottom has heat to mix the furnace gas import, and the auger stripper that communicates with electric arc furnace is arranged at the bottom; The hypomere electric arc furnace is by furnace shell, the furnace wall, body of heater manhole, bell, electrode, the electrode sealing-ring, oxygen jet, coal nozzle, cupola well, the carbide liquid relief outlet, heat material opening for feed and heat are mixed furnace gas export and are formed, and the furnace shell upper end is a bell, the furnace shell bottom is a cupola well, the furnace shell inboard is the furnace wall, and is positioned on the cupola well, and the furnace wall, left side has manhole, bottom, furnace wall, right side has the carbide liquid outlet, there are oxygen jet and coal nozzle in furnace wall on the carbide liquid outlet, and oxygen jet and coal nozzle are that level is uniform, and the electrode sealing-ring is arranged on the bell, heat material opening for feed, heat is mixed furnace gas export, place electrode in the electrode sealing-ring, electrode is inserted into middle part in the electric arc furnace, and auger stripper links to each other with heat material opening for feed, and heat is mixed furnace gas export and communicated with the heat mixing furnace gas import of shaft furnace.
Aforesaid shaft furnace aspect ratio is 4～8.
Aforesaid carbide liquid discharge outlet adopts corundum brick to build by laying bricks or stones, and basque or furnace wall adopt that carbon element is brick to be built.
Aforesaid oxygen jet and coal nozzle respectively have 3-10.
The present invention has following remarkable advantage:
1, compares with traditional calcium carbide production method, the present invention adopts two-stage method, draw the advantage of electric heating process and the hot method of oxygen, calcium carbide is produced in the compound heat supply reaction of epimere shaft furnace preheating gasification, hypomere electric arc furnace oxygen coal injection and electrode, under the prerequisite of guaranteeing the calcium carbide quality, reduce power consumption to greatest extent, power consumption only is equivalent to half of electric heating process.
2, adopt oxygen coal injection and the compound heat-supplying mode of electrode, calcium carbide product purity height, energy consumption of reaction is low, and the calcium carbide production cost is low.
3, calcium carbide furnace gas is used for cogeneration, avoids because of furnace gas discharging contaminate environment, generating is not only satisfied personal, but externally also heat supply, power supply, and economic benefit is considerable.
4, to also have an outstanding feature be to pay attention to the recycling of heat energy to this technology, and the sensible heat of calcium carbide furnace gas, waste gas, carbide liquid is fully recycled, and improves the thermo-efficiency of whole technology, and save energy is increased income and economized on spending.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Fig. 2 is that the present invention produces calcium carbide device synoptic diagram.
As shown in the figure, 1-cupola well, 2-manhole, the 3-coal nozzle, 4-bell, 5-heat material opening for feed, the 6-auger stripper, the outlet of 7-black furnace gas, the import of 8-cold stock, the 9-thermal insulation layer, 10-heat is mixed furnace gas import, 11-electrode, 12-electrode sealing-ring, 13-heat is mixed furnace gas export, 14-furnace wall, the 15-furnace shell, 16-oxygen jet, 17-carbide liquid relief outlet
Embodiment
Device is an example with minitype vertical type stove (supply load 300KVA), embodiment is raw materials used to be Wingdale, unslaked lime, hard coal, coke, Wingdale CaO content 54.32%, unslaked lime butt CaO content 94%, hard coal volatile content 6.55%, ash 10.26%, coke volatile content 1.55%.Granularity≤the 0.1mm of coal suitable for blowing powder.
Embodiment 1
Two-stage method production calcium carbide device is made up of epimere shaft furnace and hypomere electric arc furnace, and shaft furnace is a cylinder mode, peripheral hardware thermal insulation layer 9, the top is a cold burden opening for feed 8, black furnace gas outlet 7 is arranged at top, and the bottom has heat to mix furnace gas import 10, and the auger stripper 6 that communicates with electric arc furnace is arranged at the bottom; The hypomere electric arc furnace is by furnace shell 15, furnace wall 14, manhole 2, bell 5, electrode 11, electrode sealing-ring 12, oxygen jet 16, coal nozzle 3, cupola well 1, carbide liquid relief outlet 17, heat material opening for feed 5 and heat are mixed furnace gas export 13 and are formed, and furnace shell 15 upper ends are bells 4, furnace shell 15 bottoms are cupola wells 1, furnace shell 15 inboards are furnace walls 14, and are positioned on the cupola well 1, and furnace wall, left side 14 has manhole 2,14 bottoms, furnace wall, right side have carbide liquid outlet 17, there are oxygen jet 16 and coal nozzle 3 in furnace wall 14 on carbide liquid outlet 17, and oxygen jet 16 and coal nozzle 3 are that level is uniform, and electrode sealing-ring 12 is arranged on the bell 4, heat material opening for feed 5, heat is mixed furnace gas export 13, place electrode 11 in the electrode sealing-ring 12, electrode 11 is inserted into middle part in the electric arc furnace, and auger stripper 6 links to each other with heat material opening for feed 5, and heat is mixed furnace gas export 13 and communicated with the heat mixing furnace gas import 10 of shaft furnace.Wherein the shaft furnace aspect ratio is 5.5.Carbide liquid relief outlet 17 adopts corundum bricks to build by laying bricks or stones, and cupola well 1 liner and furnace wall 14 adopt that carbon element is brick to be built.Oxygen jet 16 and coal nozzle 3 respectively have 5.
(1), adopt above-mentioned coke, Wingdale, through crushing and screening, the raw material of granularity 8～50mm by weight ratio---coke: Wingdale=cooperate at 1.38: 1.
(2), calcareous raw material after cooperating and carbon raw material enter shaft furnace according to the flow of 310kg/h continuously from the cold burden opening for feed 8 at shaft furnace top, the thick CO gas phase of heat is mixed furnace gas import 10 from the heat of shaft furnace and is entered in the shaft furnace and contact with carbon raw material with calcareous raw material, calcareous raw material and carbon raw material are by the thick CO gas heating of heat, remove moisture content contained in the raw material, and after making calcareous raw material and carbon raw material temperature be increased to 900～1200 ℃ by normal temperature, come out from the shaft furnace bottom, heat material opening for feed 5 by auger stripper 6, electric arc furnace enters electric arc furnace, and heat is mixed the CO in the furnace gas
2By charcoal scorching hot in the shaft furnace further reduction and gaseous be CO, cold thick CO is from black furnace gas outlet 7 discharges of shaft furnace;
(3), coal dust sprays in the electric arc furnace by winding-up amount 20kg/h through coal nozzle 3 continuously, oxygen after preheating is sprayed in the electric arc furnace by oxygen jet 16, calcareous raw material in the electric furnace and carbon raw material are under the acting in conjunction of electrode 11 arc heats and coal dust firing heat, temperature rises to 1900～2100 ℃, reaction generates calcium carbide, generates the thick CO gas of heat and a small amount of CO simultaneously
2The mixing furnace gas of gas composition, heat is mixed furnace gas and is mixed furnace gas export 13 discharges by the heat of electric arc furnace, mixing furnace gas import 10 from the heat of shaft furnace bottom enters in the shaft furnace, the high temperature calcium carbide liquid is discharged from the carbide liquid relief outlet 17 of electric arc furnace bottom, and carries out heat exchange with oxygen, and calcium carbide liquid is cooled, generate the calcium carbide product, oxygen is preheated, and carbide liquid is every two hours arranged once, each about 170kg of discharge capacity;
(4), cold thick CO through fly-ash separator, the further dedusting of water cooler, cooling, makes its dustiness drop to 5mg/Nm again
3Below, temperature is reduced to 30～45 ℃, and compressed then machine boosts, as the fuel gas of internal combustion turbine;
(5), fuel gas enters gas turbine combustion, temperature rises to 1000～1300 ℃, elevated temperature heat waste gas promotes the turbine rotation, drives the generating set generating; Institute's generated energy is personal for electric arc furnace earlier, supplies outside remainder can be incorporated into the power networks;
(6), the internal combustion turbine heatrejection of discharging is 450～600 ℃, enters waste heat boiler and produces high-temperature steam or hot water, for cities and towns central heating use, spent air temperture is reduced to room temperature, drains into atmosphere from chimney.
Leading indicator is:
(1) CaC
2Content is 80.6%, and gas forming amount is 300L/kg; (2) 2.35t coke/t calcium carbide; (3) 1.61t Wingdale/t calcium carbide; (4) electric 1630kwh/t calcium carbide; (5) pure oxygen 1304.3Nm
3/ t calcium carbide; (6) by-product calcium carbide furnace gas 2984.6Nm
3/ t calcium carbide.
The shaft furnace aspect ratio is 4.Oxygen jet 16 and coal nozzle 3 respectively have 3.With above-mentioned coke and unslaked lime by weight ratio---coke (containing the winding-up amount): after unslaked lime=1.46: 1 cooperates, through crushing and screening, the raw material of granularity 8～50mm is sent in the shaft furnace according to the flow of 185kg/h continuously, epimere shaft furnace dump temperature is controlled at 900～1200 ℃, hypomere electric arc furnace carbide liquid temperature is controlled at 1900～2100 ℃, coal injection sprays into shaft furnace continuously according to winding-up amount 15kg/h, every two hours arrange carbide liquid one time, each about 170kg of discharge capacity, it is cooled to normal temperature, and calcium carbide content is 80.6%, and gas forming amount is 300L/kg.All the other are with embodiment 1.
Main consumption indicators is:
(1) 1.48t coke/t calcium carbide; (2) 0.9t lime/t calcium carbide; (3) 1630kwh/t calcium carbide; (4) pure oxygen 751.6Nm
3/ t calcium carbide;
(5) by-product calcium carbide furnace gas 1785.3Nm
3/ t calcium carbide.
The shaft furnace aspect ratio is 8.Oxygen jet 16 and coal nozzle 3 respectively have 9.With above-mentioned hard coal and Wingdale by weight ratio---hard coal: after Wingdale=1.42: 1 cooperates, through crushing and screening, the raw material of granularity 8～50mm is sent in the shaft furnace according to the flow of 320kg/h continuously, epimere shaft furnace dump temperature is controlled at 900～1200 ℃, hypomere electric arc furnace carbide liquid temperature is controlled at 1900～2100 ℃, coal injection sprays into shaft furnace continuously according to winding-up amount 20kg/h, every two hours arrange carbide liquid one time, each about 170kg of discharge capacity, it is cooled to normal temperature, calcium carbide content is 80.6%, and gas forming amount is 300L/kg.All the other are with embodiment 1.
Main consumption indicators is:
(1) 2.47t hard coal/t calcium carbide; (2) 1.61t Wingdale/t calcium carbide; (3) electric 1630kwh/t calcium carbide; (4) pure oxygen 1304.3Nm
3/ t calcium carbide; (5) by-product calcium carbide furnace gas 3059.2Nm
3/ t calcium carbide.
The shaft furnace aspect ratio is 6.5.Oxygen jet 16 and coal nozzle 3 respectively have 7.With above-mentioned hard coal and unslaked lime by weight ratio---hard coal: after unslaked lime=1.72: 1 cooperates, through crushing and screening, the raw material of granularity 8～50mm is sent in the shaft furnace according to the flow of 190kg/h continuously, epimere shaft furnace dump temperature is controlled at 900～1200 ℃, hypomere electric arc furnace carbide liquid temperature is controlled at 1900～2100 ℃, coal injection sprays into shaft furnace continuously according to winding-up amount 16kg/h, every two hours arrange carbide liquid one time, each about 170kg of discharge capacity, it is cooled to normal temperature, calcium carbide content is 80.6%, and gas forming amount is 300L/kg.All the other are with embodiment 1.
Main consumption indicators is:
(1) 1.55t hard coal/t calcium carbide; (2) 0.9t lime/t calcium carbide; (3) 1630kwh/t calcium carbide; (4) pure oxygen 751.6Nm
3/ t calcium carbide;
(5) by-product calcium carbide furnace gas 1830Nm
3/ t calcium carbide.
Claims (13)
1. a two-stage method is produced the technology of calcium carbide and cogeneration, it is characterized in that comprising the steps:
(1), contain calcareous raw material, carbon raw material respectively through broken, be sized to release mesh after, proportion;
(2), contain calcareous raw material and the carbon raw material after cooperating enters shaft furnace from the cold burden opening for feed at shaft furnace top, heat mixing furnace gas enters in the shaft furnace from the hot furnace gas import of shaft furnace, calcareous raw material and carbon raw material are mixed the furnace gas heating by heat, after temperature is increased to 800～1300 ℃ by normal temperature, come out from the shaft furnace bottom, heat material opening for feed by auger stripper, electric arc furnace enters electric arc furnace, and cold thick CO discharges from the black furnace gas outlet of shaft furnace;
(3), the oxygen of coal dust in coal nozzle sprays into electric arc furnace, after preheating is sprayed in the electric arc furnace by oxygen jet, calcareous raw material in the electric furnace and carbon raw material are under the acting in conjunction of electrode arc heat and coal dust firing heat, temperature rises to 1700～2200 ℃, reaction generates calcium carbide, generates the thick CO gas of heat and a small amount of CO simultaneously
2The mixing furnace gas of gas composition, heat is mixed furnace gas and is mixed the furnace gas export discharge by the heat of electric arc furnace, mixing the furnace gas import from the heat of shaft furnace bottom enters in the shaft furnace, the high temperature calcium carbide liquid is discharged from the carbide liquid outlet of electric arc furnace bottom, and carry out heat exchange with oxygen, calcium carbide liquid is cooled, and generates the calcium carbide product, and oxygen is preheated;
(4), cold thick CO through fly-ash separator, the further dedusting of water cooler, cooling, makes its dustiness drop to 5mg/Nm again
3Below, temperature is reduced to 30～45 ℃, and compressed then machine boosts, as the fuel gas of internal combustion turbine;
(5), fuel gas enters gas turbine combustion, temperature rises to 1000～1300 ℃, elevated temperature heat waste gas promotes the turbine rotation, drives the generating set generating; Institute's generated energy is personal for electric arc furnace earlier, supplies outside remainder can be incorporated into the power networks;
(6), the internal combustion turbine heatrejection of discharging is 450～600 ℃, enters waste heat boiler and produces high-temperature steam or hot water, for cities and towns central heating use, spent air temperture is reduced to room temperature, drains into atmosphere from chimney.
2. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, it is characterized in that described calcareous raw material and carbon raw material mass ratio are 1: 1.1～3.
3. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, it is characterized in that described calcareous raw material and carbon raw material granularity are 8～50mm.
4. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, it is characterized in that described carbon raw material is coal, coke or the mixing of the two of ash＜18%.
5. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, it is characterized in that the calcic raw material is the carbide slag of Wingdale, Ca0 content＞65% of Ca0 content＞48%, in the unslaked lime one or more.
6. a kind of two-stage method as claimed in claim 1 produces the technology of calcium carbide and cogeneration, and the temperature that it is characterized in that described cold thick CO gas is 300～600 ℃, and dustiness is 50～100g/Nm
3
7. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, and the temperature that it is characterized in that described calcium carbide product is 200～300 ℃.
8. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, it is characterized in that described fly-ash separator adopts tornado dust collector, electric precipitator or sack cleaner.
9. a kind of two-stage method as claimed in claim 1 is produced the technology of calcium carbide and cogeneration, it is characterized in that cold mode between the water cooler employing.
10. produce the device of calcium carbide and cogeneration technology as each described a kind of two-stage method of claim 1-9, it is characterized in that it is made up of epimere shaft furnace and hypomere electric arc furnace, shaft furnace is a cylinder mode, peripheral hardware thermal insulation layer (9), the top is cold burden opening for feed (8), black furnace gas outlet (7) is arranged at top, and the bottom has heat to mix furnace gas import (10), and the auger stripper (6) that communicates with electric arc furnace is arranged at the bottom; The hypomere electric arc furnace is by furnace shell (15), furnace wall (14), manhole (2), bell (5), electrode (11), electrode sealing-ring (12), oxygen jet (16), coal nozzle (3), cupola well (1), carbide liquid relief outlet (17), heat material opening for feed (5) and heat are mixed furnace gas export (13) and are formed, furnace shell (15) upper end is bell (4), furnace shell (15) bottom is cupola well (1), furnace shell (15) inboard is furnace wall (14), and be positioned on the cupola well (1), furnace wall, left side (14) has manhole (2), bottom, furnace wall, right side (14) has carbide liquid outlet (17), there are oxygen jet (16) and coal nozzle (3) in furnace wall (14) on carbide liquid outlet (17), and oxygen jet (16) and coal nozzle (3) are that level is uniform, and electrode sealing-ring (12) is arranged on the bell (4), heat material opening for feed (5), heat is mixed furnace gas export (13), place electrode (11) in the electrode sealing-ring (12), in the middle part of electrode (11) was inserted in the electric arc furnace, auger stripper (6) linked to each other with heat material opening for feed (5), and heat is mixed furnace gas export (13) and communicated with the heat mixing furnace gas import (10) of shaft furnace.
11. a kind of two-stage method as claimed in claim 10 is produced the device of calcium carbide and cogeneration technology, it is characterized in that described shaft furnace aspect ratio is 4～8.
12. a kind of two-stage method as claimed in claim 10 is produced the device of calcium carbide and cogeneration technology, it is characterized in that described carbide liquid discharge outlet (17) adopts corundum brick to build by laying bricks or stones, cupola well (1) liner or furnace wall (14) adopt that carbon element is brick to be built.
13. a kind of two-stage method as claimed in claim 10 is produced the device of calcium carbide and cogeneration technology, it is characterized in that described oxygen jet (16) and coal nozzle (3) respectively have 3-10.
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| CN2010101718196A CN101830464B (en) | 2010-05-14 | 2010-05-14 | Cogeneration technique for producing calcium carbide and thermoelectricity by two-stage method, and device thereof |
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| CN103303923A (en) * | 2013-05-30 | 2013-09-18 | 石家庄新华能源环保科技股份有限公司 | Device for producing calcium carbide by using oxygen thermal method |
| CN103408013A (en) * | 2013-08-03 | 2013-11-27 | 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 |
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| CN107934966A (en) * | 2017-11-09 | 2018-04-20 | 神雾环保技术股份有限公司 | A kind of calcium carbide strengthening smelting method and system |
| CN108439407A (en) * | 2018-06-07 | 2018-08-24 | 中国科学院上海高等研究院 | A kind of device of the hot method production calcium carbide of oxygen |
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