CN102701204A - Method and device for co-producing calcium carbide by coke and lime - Google Patents
Method and device for co-producing calcium carbide by coke and lime Download PDFInfo
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- CN102701204A CN102701204A CN201210180964XA CN201210180964A CN102701204A CN 102701204 A CN102701204 A CN 102701204A CN 201210180964X A CN201210180964X A CN 201210180964XA CN 201210180964 A CN201210180964 A CN 201210180964A CN 102701204 A CN102701204 A CN 102701204A
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Abstract
The invention relates to a method and a device for co-producing calcium carbide by coke and lime, wherein the device comprises an electric-arc furnace, a coking furnace and a lime kiln. The upper part of the electric-arc furnace is provided with an electrode, a coke inlet, a lime inlet and a gas outlet. The coking furnace is connected with the coke inlet by conveying equipment, an outlet of the lime kiln is connected with the lime inlet, and the gas outlet is connected with a burning system of the lime kiln. The lime and the coke are heated up to 2000-2200 DEG C in the electric-arc furnace, and are subjected to carbonization reaction to generate the calcium carbide and calcium carbide furnace gas. The un-cooled high-temperature lime in the lime kiln and un-coke quenched high-temperature coke in the coking furnace directly enter into the electric-arc furnace to be reacted to generate the calcium carbide, and the calcium carbide furnace gas is taken as burning fuel in the lime kiln. According to the invention, the coking furnace, the lime kiln and the electric-arc furnace are combined with one another, the high-temperature coke in the coking furnace and the high-temperature lime in the lime kiln are taken as raw materials to produce the calcium carbide, the calcium carbide furnace gas is taken as the fuel of the lime kiln, the energy sources can be sufficiently used, the energy consumption and the power consumption can be reduced, and the production cost of the calcium carbide can be reduced.
Description
Technical field
The invention belongs to chemical production technical field, relate to a kind of working method and device of calcium carbide, be specifically related to the working method and the device of a kind of coke, lime coproduction calcium carbide.
Background technology
Carbide of calcium is commonly called as calcium carbide, and carbide of calcium and water reaction generate acetylene.Acetylene is important chemical material, is mainly used in to produce polyvinyl chloride-based, vinyl acetate between to for plastic base and acrylic series product, and the PVC product of China 70% or more comes from the acetylene of calcium carbide production.The rise in price of petroleum products has stimulated the calcium carbide industrial expansion.
Fixed bed-arc process is generally adopted in calcium carbide production in the industry, and the high temperature that utilizes electric arc to produce is heated to 2000～2200 ℃ with lime in the furnace of calcium carbide and coke, stops regular hour generation molten state calcium carbide.The calcium carbide furnace gas that production process produces mainly is that CO discharges body of heater from top, and fused calcium carbide product is discharged from furnace bottom, through cooling off, be broken into product.Lime, coke and calcium carbide production are the technical fields that is mutually related, and the limestone kiln produces lime, and coking furnace is produced coke, and for calcium carbide production is supplied raw materials, calcium carbide production traditionally, lime production and coke production are separate production system.Lime is cooled to normal temperature from 1200 ℃ of calcining temperatures needs the cooling air power consumption; Coke is cooled to normal temperature from 950 ℃ of high temperature through processes such as quenchings, needs consumption of power and a large amount of water coolants, not only increases production cost, and causes serious environmental to pollute; Need raw material calcium carbide and coke be heated to 2000 ℃ when producing calcium carbide reacts.Separate production system not only increases transportation cost, and by product and residual heat can utilize each other, and energy dissipation is big.
Summary of the invention
For remedying the deficiency of above-mentioned prior art, the present invention provides the working method of a kind of coke, lime coproduction calcium carbide, to optimize the calcium carbide technological process of production, reduces the consumption that coke, lime and calcium carbide are produced, and reduces calcium carbide production cost and environmental pollution.Another object of the present invention provides a kind of device of realizing aforesaid method.
The method that coke of the present invention, lime coproduction calcium carbide are produced, lime and coke are heated to 2000～2200 ℃ in electric arc furnace, carry out carburizing reagent and generate calcium carbide and calcium carbide furnace gas.The limestone kiln gets into electric arc furnace without cooling zone refrigerative high temperature lime and coking furnace without the high temperature coke of quenching and carries out the reacted calcium carbide after mixer mixing, the calcium carbide of generation exports out device through calcium carbide, and calcium carbide furnace gas is made calcinating fuel to the limestone kiln.
Coke of the present invention, lime coproduction calcium carbide production equipment comprise electric arc furnace, and electric arc furnace top is provided with electrode, feed(raw material)inlet and pneumatic outlet, and the bottom of electric arc furnace is provided with the calcium carbide outlet.Device also is provided with coking furnace, limestone kiln and mixing tank.Be provided with preheating zone and calcining zone in the kiln body in limestone kiln, the limestone kiln lower part outlet is provided with high temperature material lock.Mixing tank is provided with coke inlet and lime inlet, and the outlet at bottom of gas mixture is provided with high temperature material lock.Coking furnace enters the mouth through the coke that handling equipment is connected to mixing tank, and the outlet in limestone kiln is connected to the lime inlet of mixing tank, and the outlet of mixing tank is connected to the feed(raw material)inlet of electric arc furnace, and the pneumatic outlet of electric arc furnace is connected to the firing system in limestone kiln.
The limestone kiln is beam-type limekiln, sleeve kiln, arch bridge kiln, wheat Wurz kiln or Xinhua's wheat Wurz kiln, does not get rid of other kiln type.The top, preheating zone of beam-type limekiln is provided with 1～5 suction bar, and calcining zone is provided with 1～5 layer of burning beam, every layer of 1～5 burning beam, and burning beam is provided with burner.Pneumatic outlet is connected to the fuel gas inlet of burning beam.Electric arc furnace is sealed furnace or semi closed stove.Handling equipment is worm conveyor, quenching car, hydraulic pressure propelling transfer roller.
The sleeve kiln is provided with combustion chamber, last inner core, following inner core and firebridge.The combustion chamber is divided into upper and lower two-layer, and every layer is provided with 3～8 combustion chambers, and same layer combustion chamber evenly arranged, upper and lower layer combustion chamber staggered arrangement links to each other through firebridge between each combustion chamber and the inner core.
The method and apparatus of coking of the present invention, lime coproduction calcium carbide; Combine with furnace of calcium carbide through coking furnace, limestone kiln; Utilizing coking furnace directly to advance electric arc furnace without the high temperature coke of quenching and limestone kiln without refrigerative high temperature lime carries out carburizing reagent and generates calcium carbide; Reduce coke quenching and energy consumption of lime refrigerative and power consumption, reduced the energy expenditure that the intensification of electric arc furnace carbide raw material needs simultaneously, reduced the calcium carbide production cost; Optimized the process that calcium carbide is produced, reduced coke and lime process of cooling environment and atmospheric pollution.Coking furnace is not established coke quenching auxiliary, and cooling zone is not established in the limestone kiln, has reduced facility investment and process cost that coking and lime are produced.Calcium carbide furnace gas makes full use of the by product that calcium carbide is produced directly as the fuel of limestone kiln calcined limestone, reduces energy consumption.The trucking costs of furnace of calcium carbide and coking furnace, limestone kiln associating can the reduction lime and coke.
Description of drawings
Fig. 1 is coke of the present invention, lime coproduction calcium carbide production equipment synoptic diagram.
Wherein: 1-limestone kiln, 2-suction bar, 3-preheating zone, 4-burning beam, 5-calcining zone, 6-high temperature material lock, 7-mixing tank, 8-feed(raw material)inlet, 9-electrode, 10-electric arc furnace, 11-coking furnace, 12-handling equipment, 13-pneumatic outlet, the outlet of 14-calcium carbide.
Embodiment
Below in conjunction with accompanying drawing the present invention is carried out detailed description.
A kind of coke of the present invention, lime coproduction calcium carbide production equipment comprise electric arc furnace 10, coking furnace 11, limestone kiln 1 and mixing tank 7, and electric arc furnace is a closed vessel furnace.Electric arc furnace top is provided with electrode 9, and feed(raw material)inlet 8 and pneumatic outlet 13, the bottom of electric arc furnace are provided with calcium carbide outlet 14.The limestone kiln is a beam-type limekiln, is provided with preheating zone 3 and calcining zone 5 in the kiln body, and the preheating zone is provided with 2 suction bars 2, and calcining zone is provided with 2 layers of burning beam 4, and the upper strata is provided with 3 burning beams, and lower floor is provided with two burning beams, and burning beam is provided with burner.Mixing tank is provided with coke inlet and lime inlet, and the outlet at bottom of gas mixture is provided with high temperature material lock.Coking furnace 11 enters the mouth through the coke that handling equipment 12 is connected to mixing tank, and handling equipment is a worm conveyor.The outlet in limestone kiln is connected to the lime inlet of mixing tank, and the outlet of mixing tank is connected to the feed(raw material)inlet 8 of electric arc furnace, and the pneumatic outlet 13 of electric arc furnace is connected to the fuel gas inlet of limestone kiln burning beam, and the calcium carbide outlet is connected to the following process system.
The process of coke of the present invention, the production of lime coproduction calcium carbide is that coal carries out coking at coking furnace 11 and generates coke and gas-liquid coke chemicals.Wingdale is sent into limestone kiln 1 through apparatus for feeding, and the high-temperature flue gas after 3 calcinings of preheating zone carries out preheating to limestone material.Material after the preheating moves to calcining zone 5, is calcined by the burner ejection fuel and the combustion air burning of burning beam 4, and calcining temperature is 1200 ℃.High temperature lime after the calcining gets into mixing tank through the high temperature material lock 6 of discharge port with the lime inlet.High temperature coke is sent into mixing tank 7 through worm conveyor through the coke inlet.Coke and lime mix in mixing tank 7 by the stoichiometric that the production calcium carbide needs, and open the high temperature material lock of mixer outlet mixing raw material is sent into electric arc furnace.Start power supply and carry out electric arc furnace heating and carburizing reagent generation calcium carbide and calcium carbide furnace gas, the carbonation reaction temperature of electric arc furnace heating is 2100 ℃.The calcium carbide of the molten state that generates goes out device to the post-treatment system through calcium carbide outlet 14, and the calcium carbide furnace gas of generation gets into limestone kiln burning beam 4 through pipeline and makes fuel calcined limestone material.The limestone material of the smoke pre-heating preheating zone that calcining produces is after suction bar 2 arrives the exhaust emission system discharging.
Claims (7)
1. a coke, the lime coproduction calcium carbide method of producing; Lime and coke are heated to 2000～2200 ℃ in electric arc furnace (10); Carry out the carbonizing reduction reaction and generate calcium carbide and calcium carbide furnace gas; It is characterized in that: limestone kiln (1) is carried out reacted calcium carbide without the high temperature coke of quenching through getting into electric arc furnace after the mixer mixing without refrigerative high temperature lime and coking furnace, and the calcium carbide of generation goes out device through calcium carbide outlet (14), and calcium carbide furnace gas is made calcinating fuel to the limestone kiln.
2. a coke, lime coproduction calcium carbide production equipment; Comprise electric arc furnace (10); Electric arc furnace top is provided with electrode (9); Feed(raw material)inlet (8) and pneumatic outlet (13), the bottom of electric arc furnace are provided with calcium carbide outlet (14), and it is characterized in that: said device also is provided with coking furnace (11), limestone kiln (1) and mixing tank (7); Be provided with preheating zone (3) and calcining zone (5) in the kiln body in said limestone kiln, the limestone kiln lower part outlet is provided with high temperature material lock (6); Said mixing tank is provided with coke inlet and lime inlet, and the outlet at bottom of gas mixture is provided with high temperature material lock; Coking furnace (11) is connected to the coke inlet of mixing tank through handling equipment (12); The outlet in limestone kiln is connected to the lime inlet of mixing tank; The outlet of mixing tank is connected to the feed(raw material)inlet of electric arc furnace, and the pneumatic outlet of electric arc furnace (13) is connected to the firing system in limestone kiln.
3. according to the production equipment of the said coke of claim 1, lime coproduction calcium carbide, it is characterized in that: said limestone kiln is beam-type limekiln, sleeve kiln, arch bridge kiln, wheat Wurz kiln or Xinhua's wheat Wurz kiln.
4. according to the production equipment of the said coke of claim 3, lime coproduction calcium carbide; It is characterized in that: the top, preheating zone of said beam-type limekiln is provided with 1～5 suction bar (2); Calcining zone is provided with 1～5 layer of burning beam (4), every layer of 1～5 burning beam, and burning beam is provided with burner; Said pneumatic outlet (13) is connected to the fuel gas inlet of burning beam.
5. according to the production equipment of the said coke of claim 3, lime coproduction calcium carbide; It is characterized in that: be provided with combustion chamber, last inner core, following inner core and firebridge in the kiln body of said sleeve kiln; Said combustion chamber is divided into upper and lower two-layer, and every layer is provided with 3～8 combustion chambers, and same layer combustion chamber evenly arranged; Link to each other through firebridge between the upper and lower layer combustion chamber staggered arrangement, each combustion chamber and inner core.
6. according to the production equipment of the said coke of claim 1, lime coproduction calcium carbide, it is characterized in that: said electric arc furnace (10) is sealed furnace or semi closed stove.
7. according to the production equipment of the said coke of claim 1, lime coproduction calcium carbide, it is characterized in that: said handling equipment (12) advances transfer roller for worm conveyor, quenching car, hydraulic pressure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210180964.XA CN102701204B (en) | 2012-06-05 | 2012-06-05 | Method and device for co-producing calcium carbide by coke and lime |
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| CN201210180964.XA CN102701204B (en) | 2012-06-05 | 2012-06-05 | Method and device for co-producing calcium carbide by coke and lime |
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| CN102701204A true CN102701204A (en) | 2012-10-03 |
| CN102701204B CN102701204B (en) | 2014-11-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951640A (en) * | 2012-11-12 | 2013-03-06 | 石家庄新华能源环保科技股份有限公司 | Calcium carbide producing device |
| CN104108716A (en) * | 2014-05-19 | 2014-10-22 | 顾君尧 | Calcium carbide cooling molding device |
| CN105038708A (en) * | 2015-08-12 | 2015-11-11 | 江苏振宇环保科技有限公司 | Method of producing solid snow-melting agent by utilizing waste marble |
| CN105399346A (en) * | 2015-11-10 | 2016-03-16 | 石家庄新华能源环保科技股份有限公司 | Production device of lime and coke co-produced calcium carbide |
| CN109095470A (en) * | 2018-07-16 | 2018-12-28 | 安徽华塑股份有限公司 | A kind of furnace of calcium carbide convenient for high activity carbon granule is added |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186316A (en) * | 2007-11-15 | 2008-05-28 | 中国天辰化学工程公司 | Calcium carbide, polyvinyl chloride, soda and chloro-alkaline combined device and method for saving energy, reducing discharge and preparing alkali from waste slag |
| CN101693536A (en) * | 2009-10-22 | 2010-04-14 | 上海宝钢工程技术有限公司 | Hot commissioning test run technology of calcium carbide |
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2012
- 2012-06-05 CN CN201210180964.XA patent/CN102701204B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186316A (en) * | 2007-11-15 | 2008-05-28 | 中国天辰化学工程公司 | Calcium carbide, polyvinyl chloride, soda and chloro-alkaline combined device and method for saving energy, reducing discharge and preparing alkali from waste slag |
| CN101693536A (en) * | 2009-10-22 | 2010-04-14 | 上海宝钢工程技术有限公司 | Hot commissioning test run technology of calcium carbide |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951640A (en) * | 2012-11-12 | 2013-03-06 | 石家庄新华能源环保科技股份有限公司 | Calcium carbide producing device |
| CN102951640B (en) * | 2012-11-12 | 2014-04-09 | 石家庄新华能源环保科技股份有限公司 | Calcium carbide producing device |
| CN104108716A (en) * | 2014-05-19 | 2014-10-22 | 顾君尧 | Calcium carbide cooling molding device |
| CN105038708A (en) * | 2015-08-12 | 2015-11-11 | 江苏振宇环保科技有限公司 | Method of producing solid snow-melting agent by utilizing waste marble |
| CN105399346A (en) * | 2015-11-10 | 2016-03-16 | 石家庄新华能源环保科技股份有限公司 | Production device of lime and coke co-produced calcium carbide |
| CN109095470A (en) * | 2018-07-16 | 2018-12-28 | 安徽华塑股份有限公司 | A kind of furnace of calcium carbide convenient for high activity carbon granule is added |
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| CN102701204B (en) | 2014-11-19 |
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Address after: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Applicant after: Shijiazhuang Xinhua Energy and Environmental Protection Technology Co., Ltd. Address before: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Applicant before: Shijiazhuang Xinhua Industrial Furnace Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHIJIAZHUANG XINHUA INDUSTRIAL FURNACE CO., LTD. TO: SHIJIAZHUANG XINHUA ENERGY ENVIRONMENTAL TECHNOLOGY CO., LTD. |
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