CN101891223A - Method and device for developing and using large-sized solid fused magnesium fusing lump afterheat potential - Google Patents
Method and device for developing and using large-sized solid fused magnesium fusing lump afterheat potential Download PDFInfo
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- CN101891223A CN101891223A CN2010102222893A CN201010222289A CN101891223A CN 101891223 A CN101891223 A CN 101891223A CN 2010102222893 A CN2010102222893 A CN 2010102222893A CN 201010222289 A CN201010222289 A CN 201010222289A CN 101891223 A CN101891223 A CN 101891223A
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- heat
- afterheat
- fusing lump
- potential
- obtaining
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- 238000000034 method Methods 0.000 title claims abstract description 23
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 15
- 239000011777 magnesium Substances 0.000 title claims abstract description 15
- 239000007787 solid Substances 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000011161 development Methods 0.000 claims description 13
- 230000018109 developmental process Effects 0.000 claims description 13
- 239000002918 waste heat Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- HCOLPNRPCMFHOH-UHFFFAOYSA-N Prodigiosin Natural products CCCCCC1C=C(C=C/2N=C(C=C2OC)c3ccc[nH]3)N=C1C HCOLPNRPCMFHOH-UHFFFAOYSA-N 0.000 claims description 3
- 239000013256 coordination polymer Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- TWFGRJUTAULJPZ-USZBIXTISA-N prodigiosin Chemical compound N1=C(C)C(CCCCC)=C\C1=C/C1=NC(C=2[N]C=CC=2)=C[C]1OC TWFGRJUTAULJPZ-USZBIXTISA-N 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 abstract description 13
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract description 13
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract description 13
- 235000014380 magnesium carbonate Nutrition 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000011160 research Methods 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000007499 fusion processing Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a method and a device for developing and using large-sized solid fused magnesium fusing lump afterheat potential. The method comprises the following steps of: (1) obtaining fusing lump afterheat and determining fused magnesium fusing lump quantity and afterheat use value by actual measurement and theoretical calculation; and (2) in a forcible heat extracting state, calculating heat time-sharing heat extraction. The device is formed by connecting the following parts of an afterheat energy-stored heat-exchange kiln, an ore energy-stored heating kettle, a high-temperature fan, a high-temperature electromagnetic valve heat-balance channel, an intelligent control system of an afterheat recycling device, a heavy-current distributing system, a layered-isolation fusing lump vehicle and a turbolator reticulated shell. The invention embarks on heavy afterheat lost by fused magnesite in a fusing process, seriously researches the physicochemical property, the potential quantity and the use value of the afterheat, researches a set of methods capable of quickly collecting heat to strengthen, transmit and store, and is directly applied to a method and a modern device in magnesite production.
Description
Technical field: the present invention relates to the method and apparatus development that the large-sized solid fusing lump afterheat development of potential in the electric molten magnesite production process utilizes.
Background technology: it is the preferential theme of major fields that National Program for Medium-to Long-term Scientific and Technological Development is pointed out energy-saving and cost-reducing, implements energy-saving and cost-reducing engineering and helps economical and social good and fast development.
China's magnesite resource is quite abundant, magnesian production accounts for the No. 1 in the world, the equipment and technology of production electric molten magnesite is still original backward state, still be uncovered melting, artificial production, automatization level is lower, molten the sticking together of high temperature after the melting is that natural heat dissipation is more than 7 days entirely, so a large amount of heat energy has been wasted, caused severe environmental pollution again, caused the energy and resource utilization very low.Therefore energy-saving and emission-reduction were imperative during electric molten magnesite was produced.One ton of electrosmelted magnesite clinker of present every production needs about power consumption 3000 degree, and current consumption occupies more than 60% of total cost, and a large amount of power consumptions has caused for the electric molten magnesite industry development and had a strong impact on, because power consumption cost is too big, makes profit margin too little simultaneously.Therefore the research topic attached great importance to of the energy-conservation people of being of electric molten magnesite industry, we are by field survey and calculate and found that electrically fused magnesium fused weight is hiding huge waste heat.And these afterheat utilization researchs are still a blank at home and abroad.
Summary of the invention:
Goal of the invention: the object of the invention is to develop a huge waste heat that overlaps electrically fused magnesium fused weight and gathers the equipment that stores rapidly, and utilizes this equipment to make waste heat become the method for the huge useful energy, is directly used in production magnesia.
Technical scheme: the present invention implements by the following technical programs:
The method of large-sized solid fused magnesium fusing lump afterheat development of potential use device is characterized in that: said method comprising the steps of:
(1),, determines the quantity of fused magnesium fusing lump afterheat and the value of UTILIZATION OF VESIDUAL HEAT IN by actual measurement and Theoretical Calculation to the fusing lump afterheat heat-obtaining; Relevant according to any specific heat capacity that is higher than zero degree object institute prodigiosin value and material, material mass, density, temperature variation that material had, adopt the KJ of following formula: Q=CP * ρ * V * (T2-T1);
(2) forcing under the heat-obtaining state, the timesharing heat-obtaining calculates; Control table when designing temperature makes the molten time sharing segment discontinuous heat-obtaining that sticks together also gather fast and store, and sets up ARM9 intelligent control curve on this basis, and realizes control waste heat recovery storage and divide two-stage ore direct heating process.
Adopt segmentation timesharing heat taking method in the described step (1) during to the fusing lump afterheat heat-obtaining.
The large-sized solid fused magnesium fusing lump afterheat development of potential utilizes the application apparatus of method, it is characterized in that: described equipment is by connecting to form with the lower section: molten stick together car, flow-disturbing subnet shell are isolated in waste heat energy storage heat exchange kiln, ore energy storage heating kettle, high-temperature blower and high-temperature solenoid valve door thermal equilibrium passage, heat recovery device intelligence control system, forceful electric power power distribution system, layering.
Advantage and effect: the present invention sets about to catch electrosmelted magnesite clinker to lose a large amount of waste heats in fusion process, conscientiously study physicochemical property, potential quantity and the using value of waste heat, and work out a cover and can gather heat energy rapidly, strengthen conduction and storage, directly apply to method and the modernized device of magnesia in producing.The equipment of this technology and development will be realized saves energy more than 20%, be the major reform of an electrosmelted magnesite clinker production technique and production unit.
Embodiment:
Below in conjunction with specific embodiment the present invention is specifically described:
The present invention's research is to set about to catch electrosmelted magnesite clinker to lose a large amount of waste heats in fusion process, conscientiously study physicochemical property, potential quantity and the using value of waste heat, and work out a cover and can gather heat energy rapidly, strengthen conduction and storage, directly apply to method and the modernized device of magnesia in producing.The equipment of this technology and development will be realized saves energy more than 20%, be the major reform of an electrosmelted magnesite clinker production technique and production unit.
The method of the invention may further comprise the steps:
(1),, determines the quantity of fused magnesium fusing lump afterheat and the value of UTILIZATION OF VESIDUAL HEAT IN by actual measurement and Theoretical Calculation to the fusing lump afterheat heat-obtaining; Because molten sticking together belongs to large cylinder unstable state conduction and convective heat exchange mode,, use following formula by relevant according to any specific heat capacity that is higher than zero degree object institute prodigiosin value and material, material mass, density, temperature variation that material had:
Q＝CP×P×V×T2-T1)KJ；
Favourable for making the waste heat heat-obtaining meet crystallization, we adopt segmentation timesharing heat taking method, be divided into two heat-obtaining stages in the present embodiment, the i.e. heat-obtaining of 2000 ℃-1280 ℃ stages and 1280 ℃-812 ℃, below table 1 be 2000 ℃ of-1280 ℃ of heat energy that the stage fusing lump afterheat is emitted, table 2 is for from 1280 ℃ of-812 ℃ of heat energy that fusing lump afterheat is emitted.
Table 1
Table 2
Calculate the waste heat enormous amount of visible electrically fused magnesium fused weight by table 1, table 2, and very large more with the energy of these waste heats than the needed heat of realization decomposing state more than removing processing ore to 700 ℃.Have fully and produce the value of directly utilizing.
(2) force under the heat-obtaining h=60 state, and the calculating of timesharing heat-obtaining.Design Wen Shibiao passes through calculation formula by table 3 and table 4, and control table makes the molten time sharing segment discontinuous heat-obtaining that sticks together also gather fast and store when designing temperature.Set up ARM9 intelligent control curve on this basis, and be implemented under the prerequisite of ensuring the quality of products, the control waste heat recovery stores and branch two-stage ore direct heating process.See Table 3, table 4 sticks together at unsteady-state heat transfer rate of temperature fall table for molten, is the foundation of heat-obtaining and control high-temperature blower and high-temperature solenoid valve door intelligent control at times.
Table 3
Table 4
The recovery of fusing lump afterheat and production are the comparison difficulties from utilizing, the Calculation and Study ideal control curve of application table 3, table 4, this has just guaranteed heat recovery under the quality product prerequisite, and will develop the corresponding apparatus device and realize this control, this device is by connecting to form with the lower section: molten stick together car, flow-disturbing subnet shell are isolated in waste heat energy storage heat exchange kiln, ore energy storage heating kettle, high-temperature blower and high-temperature solenoid valve door thermal equilibrium passage, heat recovery device intelligence control system, forceful electric power power distribution system, layering.
Claims (3)
1. the method utilized of large-sized solid fused magnesium fusing lump afterheat development of potential is characterized in that: said method comprising the steps of:
(1),, determines the quantity of fused magnesium fusing lump afterheat and the value of UTILIZATION OF VESIDUAL HEAT IN by actual measurement and Theoretical Calculation to the fusing lump afterheat heat-obtaining; Relevant according to any specific heat capacity that is higher than zero degree object institute prodigiosin value and material, material mass, density, temperature variation that material had, adopt the KJ of following formula: Q=CP * ρ * V * (T2-T1);
(2) forcing under the heat-obtaining state, the timesharing heat-obtaining calculates; Control table when designing temperature makes the molten time sharing segment discontinuous heat-obtaining that sticks together also gather fast and store, and sets up ARM9 intelligent control curve on this basis, and realizes control waste heat recovery storage and divide two-stage ore direct heating process.
2. the method for utilizing according to the described large-sized solid fused magnesium fusing lump afterheat development of potential of claim 1 is characterized in that: adopt segmentation timesharing heat taking method in the described step (1) during to the fusing lump afterheat heat-obtaining.
3. the equipment that utilizes of large-sized solid fused magnesium fusing lump afterheat development of potential according to claim 1, it is characterized in that: described equipment is by connecting to form with the lower section: molten stick together car, flow-disturbing subnet shell are isolated in waste heat energy storage heat exchange kiln, ore energy storage heating kettle, high-temperature blower and high-temperature solenoid valve door thermal equilibrium passage, heat recovery device intelligence control system, forceful electric power power distribution system, layering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010222289 CN101891223B (en) | 2010-07-09 | 2010-07-09 | Method and device for developing and using large-sized solid fused magnesium fusing lump afterheat potential |
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|---|---|---|---|
| CN 201010222289 CN101891223B (en) | 2010-07-09 | 2010-07-09 | Method and device for developing and using large-sized solid fused magnesium fusing lump afterheat potential |
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| Publication Number | Publication Date |
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| CN101891223A true CN101891223A (en) | 2010-11-24 |
| CN101891223B CN101891223B (en) | 2013-11-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345983A (en) * | 2011-01-10 | 2012-02-08 | 沈阳东大工业炉有限公司 | Technology and device for recycling waste heat of electrically fused magnesia smelted block |
| CN104176952A (en) * | 2014-08-18 | 2014-12-03 | 营口东吉科技（集团）有限公司 | Method for preparing light roasted powder from fused magnesite by using waste heat |
| CN112615370A (en) * | 2020-12-17 | 2021-04-06 | 国网辽宁省电力有限公司鞍山供电公司 | Wind power consumption coordination control method based on electric smelting magnesium load |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676238A (en) * | 2008-09-19 | 2010-03-24 | 马贵猛 | Melt opening type continuous fusion electric melting furnace for magnesia |
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- 2010-07-09 CN CN 201010222289 patent/CN101891223B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676238A (en) * | 2008-09-19 | 2010-03-24 | 马贵猛 | Melt opening type continuous fusion electric melting furnace for magnesia |
Non-Patent Citations (1)
| Title |
|---|
| 薛丰等: "电熔镁砂生产的节能途径", 《节能》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345983A (en) * | 2011-01-10 | 2012-02-08 | 沈阳东大工业炉有限公司 | Technology and device for recycling waste heat of electrically fused magnesia smelted block |
| CN102345983B (en) * | 2011-01-10 | 2014-04-30 | 沈阳东大工业炉有限公司 | Technology and device for recycling waste heat of electrically fused magnesia smelted block |
| CN104176952A (en) * | 2014-08-18 | 2014-12-03 | 营口东吉科技（集团）有限公司 | Method for preparing light roasted powder from fused magnesite by using waste heat |
| CN112615370A (en) * | 2020-12-17 | 2021-04-06 | 国网辽宁省电力有限公司鞍山供电公司 | Wind power consumption coordination control method based on electric smelting magnesium load |
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| CN101891223B (en) | 2013-11-06 |
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Effective date of registration: 20170106 Address after: 114231 Liaoning Province, Haicheng City Economic Development Zone, a small Wei Xinghai street 181-3 Patentee after: Haicheng modern Magnesite Industry Science and Technology Engineering Co. Ltd. Address before: Heping District, Liaoning city of Shenyang province 110003 Street No. 27 Patentee before: Luan Luyi |