CN101096732A - Magnesium and magnesium alloy resource circulatory utilization system - Google Patents
Magnesium and magnesium alloy resource circulatory utilization system Download PDFInfo
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- CN101096732A CN101096732A CNA200610200646XA CN200610200646A CN101096732A CN 101096732 A CN101096732 A CN 101096732A CN A200610200646X A CNA200610200646X A CN A200610200646XA CN 200610200646 A CN200610200646 A CN 200610200646A CN 101096732 A CN101096732 A CN 101096732A
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a magnesium and magnesium alloy resource circulating utilization system, which is characterized by the following: the system contains magnesium and magnesium alloy smelter, magnesium slag brick factory, calcium carbonate factory and slurry factory to reuse the waste slag, water and gas in the magnesium and magnesium alloy manufacturing course, residual steam boiler and living office heating circulating cooling system; the smelter includes rotary kiln workshop, reducing workshop, magnesium refining workshop and magnesium alloy smelting workshop; the system purifies the gas, which satisfies the discharge standard of low temperature and low dust.
Description
Technical field
The present invention relates to a kind of utilization system, particularly magnesium and magnesium alloy resource cyclic utilization system.
Background technology
The smelting production process of magnesium and magnesium alloy is so at present, with coal, coal gas or heavy oil etc. are fuel, be sintered into white in the rotary kiln workshop rhombspar, to forge white, fluorite, ferrosilicon is delivered to the pressure ball workshop through Microcomputerized dosing and is mixed compacting balling-up material, for supplying raw materials in the magnesium reduction workshop, in the magnesium reduction workshop, with coal or coal gas is fuel, ball material with the compacting of pressure ball workshop is a raw material, after reduction reaction, produce crude magnesium, produce the magnesium ingot finished product through the magnesium refining plant again, can also produce the magnesium alloy ingot finished product through the magnesium alloy smelting shop again, or make various magnesium-alloy material through magnesium alloy source mill again.In above-mentioned production process, can produce a large amount of industrial residue, trade effluent and industrial gaseous waste, carbon dioxide and cinder as the generation of rotary kiln workshop, magnesium slag, cinder and hot flue gas etc. that the reduction plant produces, smelting shop also have industrial residues such as magnesium slag, cinder, gypsum to produce in process of production.These industrial residues, trade effluent and industrial gaseous waste generally all were to have emitted in the past, it can cause environmental pollution, destroy the eubiosis, also caused the waste of the energy, if these industrial residues, waste water and waste gas are carried out discharging after the pollution-free processing again, to spend sizable processing pollution cost so, bring heavy economical load to enterprise.Therefore need find and a kind of these industrial residues, trade effluent and industrial gaseous waste be carried out comprehensive utilization method, both can reduce the expense of these waste materials of business processes, also can utilize these waste materials to produce the product useful to society, or provide the available energy to promote the well-being of mankind, can also reduce pollution to environment.
Summary of the invention
The objective of the invention is to: a kind of magnesium and magnesium alloy resource cyclic utilization system are provided.Make full use of a large amount of industrial residues that produce in the smelting production process of magnesium and magnesium alloy, trade effluent and industrial gaseous waste and residual heat resources, reduce these waste residues of business processes, the expense of waste water and waste gas, also can utilize these waste materials to produce the product useful to society, or provide the available energy to promote the well-being of mankind, can also reduce pollution to environment.
Technical scheme of the present invention: magnesium and magnesium alloy resource cyclic utilization system, the formation of this system comprises the smeltery that magnesium and magnesium alloy are produced, Mg-slag brick factory, lime carbonate factory, coal water mixture plant that waste residue, waste water, the waste gas that produces in magnesium and the magnesium alloy production process is utilized again, and waste heat steam boiler, life office heating circulating cooling system; The smeltery mainly comprises rotary kiln workshop, reduction plant, magnesium refining plant, magnesium alloy smelting shop; The carbon dioxide that the rotary kiln workshop produces is produced lime carbonate for lime carbonate factory; The hot flue gas that reduction plant and magnesium refining plant produce uses for waste heat steam boiler and the slurries oven dry of lime carbonate factory, and unnecessary heat reclaims by heat storage technology; Magnesium slag, cinder and the gypsum that cinder that the rotary kiln workshop produces and reduction plant and magnesium refining plant produce produced Mg-slag brick for Mg-slag brick factory and used, the steam of waste heat steam boiler provides vacuum power for the vacuum jet system to the reduction plant, and residual steam provides steam for the production of Mg-slag brick; The hot water that the reduction plant produces is as life office heating; The waste water water supply coal slurry factory production coal water slurry of plant area; This system also comprises the fume emission desulfurization purifier.
In above-mentioned magnesium and the magnesium alloy resource cyclic utilization system, required calcium hydroxide or acetylene slag are collected at native system, or collect from peripheral enterprise.
Compared with prior art, the present invention makes full use of a large amount of industrial residues that produce in the smelting production process of magnesium and magnesium alloy, trade effluent and industrial gaseous waste, carry out recycle, reduced these waste residues of business processes, the expense of waste water and waste gas also provides useful product for society, or provide the available energy to promote the well-being of mankind, can also reduce pollution to environment.
Description of drawings
Accompanying drawing 1 is a system diagram of the present invention;
Embodiment
Embodiment: magnesium and magnesium alloy resource cyclic utilization system.This system is the waste residue that produces in magnesium and the magnesium alloy production process, waste water, waste gas utilizes fully again, the other products that is of value to society with waste residue production, the waste water that produces in the production process is cycling and reutilization repeatedly after treatment, after the hot flue gas that is not fully utilized in the production process is used to produce steam, is reused for and produces or life, this system also carries out purifying treatment to finally discharged gas, makes the gas of discharging meet the emission standard that low temperature hangs down dirt.
Magnesium and magnesium alloy resource cyclic utilization system, the formation of this system comprises the smeltery that magnesium and magnesium alloy are produced, Mg-slag brick factory, lime carbonate factory, coal water mixture plant that waste residue, waste water, the waste gas that produces in magnesium and the magnesium alloy production process is utilized again, and waste heat steam boiler, life office heating circulating cooling system; The smeltery mainly comprises rotary kiln workshop, reduction plant, magnesium refining plant, magnesium alloy smelting shop; The carbon dioxide that the rotary kiln workshop produces is produced lime carbonate for lime carbonate factory; The hot flue gas that reduction plant and magnesium refining plant produce uses for waste heat steam boiler and the slurries oven dry of lime carbonate factory, and unnecessary heat reclaims by heat storage technology; Magnesium slag, cinder and the gypsum that cinder that the rotary kiln workshop produces and reduction plant and magnesium refining plant produce produced Mg-slag brick for Mg-slag brick factory and used, the steam of waste heat steam boiler provides vacuum power for the vacuum jet system to the reduction plant, and residual steam provides steam for the production of Mg-slag brick; The hot water that the reduction plant produces is as life office heating; The waste water water supply coal slurry factory production coal water slurry of plant area; This system also comprises the fume emission desulfurization purifier.Calcium hydroxide or acetylene slag required in the system are collected at native system, or collect from peripheral enterprise.
The fuel that the production of magnesium and magnesium alloy is used is coal, earlier coal is pulverized with the water mixer mill at coal water mixture plant and makes coal water slurry, and the fuel of production usefulness is provided for rotary kiln workshop, magnesium reduction workshop, magnesium refining plant and magnesium alloy smelting shop.Become to forge the raw material dolomite calcination white in the rotary kiln workshop.And then will forge to give for free and add fluorite, ferrosilicon again toward the Microcomputerized dosing system and behind Microcomputerized dosing, deliver to the pressure ball workshop according to a certain percentage and mix and to be pressed into the required spherical raw material in magnesium reduction workshop.In the magnesium reduction workshop raw material is produced crude magnesium by heating and chemical reaction in reduction furnace, produce the magnesium ingot finished product through the magnesium refining plant again, can also produce the magnesium alloy ingot finished product through the magnesium alloy smelting shop again, or make various magnesium-alloy material through magnesium alloy source mill again.
In above-mentioned production process, the water that coal water mixture plant uses can be the production or the sanitary wastewater of plant area inside, replenishes if add clean water inadequately again, so greatly the conserve water resource.Coal water mixture plant is produced required calcium hydroxide and can be collected at native system, or absorbs the acetylene waste residue of peripheral enterprise.
The waste material cinder that the rotary kiln workshop produces, waste material magnesium slag, cinder that magnesium reduction workshop and magnesium refining plant produce are sent to the Mg-slag brick station-service in being made into material of construction Mg-slag brick finished product.In the production process of Mg-slag brick, need carry out steam-curedly to Mg-slag brick, steam-cured required steam also is to utilize hot flue gas that reduction plant or refining plant discharge through the steam that waste heat boiler produces, and has saved heat energy.
The carbon dioxide that the rotary kiln workshop produces is sent to lime carbonate factory, and adds milk of lime or the acetylene slag is made calcium carbonate serosity, makes the light calcium carbonate finished product after the calcium carbonate serosity drying.Drying used heat energy, is the hot flue gas that discharge reduction plant or refining plant, has accomplished the utilization once more of the energy.The flue gas that the calcium carbonate serosity drying course produces, after desulfation dust-extraction device was handled, discharging met the gas of the low dirt emission standard of low temperature.The required sweetening agent of desulfurization and dedusting can utilize the acetylene slag to make, and the gypsum that produces in the sweetening process is produced required starting material as Mg-slag brick.
The hot flue gas that magnesium reduction workshop and magnesium refining plant produce offers waste heat steam boiler, and the steam that waste heat steam boiler produces provides vacuum power by the steam-to-vacuum fluidic system for the reduction plant, also provides steam for Mg-slag brick factory simultaneously.Unnecessary heat reclaims by heat storage technology.
The about 70 ℃ of hot water that come out in the heat exchanger in magnesium reduction workshop provide hot water for office or dormitory, are used for having a bath or are connected with caliduct being used for the heating in winter and using.
Claims (2)
1. magnesium and magnesium alloy resource cyclic utilization system, it is characterized in that: the formation of this system comprises the smeltery that magnesium and magnesium alloy are produced, Mg-slag brick factory, lime carbonate factory, coal water mixture plant that waste residue, waste water, the waste gas that produces in magnesium and the magnesium alloy production process is utilized again, and waste heat steam boiler, life office heating circulating cooling system; The smeltery mainly comprises rotary kiln workshop, reduction plant, magnesium refining plant, magnesium alloy smelting shop; The carbon dioxide that the rotary kiln workshop produces is produced lime carbonate for lime carbonate factory; The hot flue gas that reduction plant and magnesium refining plant produce uses for waste heat steam boiler and the slurries oven dry of lime carbonate factory, and unnecessary heat reclaims by heat storage technology; Magnesium slag, cinder and the gypsum that cinder that the rotary kiln workshop produces and reduction plant and magnesium refining plant produce produced Mg-slag brick for Mg-slag brick factory and used, the steam of waste heat steam boiler provides vacuum power for the vacuum jet system to the reduction plant, and residual steam provides steam for the production of Mg-slag brick; The hot water that the reduction plant produces is as life office heating; The waste water water supply coal slurry factory production coal water slurry of plant area; This system also comprises the fume emission desulfurization purifier.
2. magnesium according to claim 1 and magnesium alloy resource cyclic utilization system is characterized in that: calcium hydroxide or acetylene slag required in the system are collected at native system, or collect from peripheral enterprise.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610200646XA CN101096732B (en) | 2006-06-30 | 2006-06-30 | Magnesium and magnesium alloy resource circulatory utilization system |
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| CN200610200646XA CN101096732B (en) | 2006-06-30 | 2006-06-30 | Magnesium and magnesium alloy resource circulatory utilization system |
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| CN101096732A true CN101096732A (en) | 2008-01-02 |
| CN101096732B CN101096732B (en) | 2010-11-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870560A (en) * | 2010-06-18 | 2010-10-27 | 北京大学 | Method for recovering waste heat of electrically fused magnesium fused weight |
| CN102384662A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Waste heat power generation device of magnesium oxide calcining rotary kiln |
| CN102384661A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Power generation device based on after heat of magnesia powder from magnesia calcination rotary kiln |
| CN103710550A (en) * | 2013-12-27 | 2014-04-09 | 兰新哲 | Method for poly-generation and large-scale coupling production based on semi coke and magnesium |
| CN109485360A (en) * | 2018-12-28 | 2019-03-19 | 西安交通大学 | A kind of building moulding material produced using magnesium-smelting silicothermic process waste residue as raw material and its method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308218A (en) * | 2001-02-14 | 2001-08-15 | 宁夏鑫达镁业有限公司 | Vacuum system utilizing afterheat of reducing furnace |
-
2006
- 2006-06-30 CN CN200610200646XA patent/CN101096732B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308218A (en) * | 2001-02-14 | 2001-08-15 | 宁夏鑫达镁业有限公司 | Vacuum system utilizing afterheat of reducing furnace |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870560A (en) * | 2010-06-18 | 2010-10-27 | 北京大学 | Method for recovering waste heat of electrically fused magnesium fused weight |
| CN102384662A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Waste heat power generation device of magnesium oxide calcining rotary kiln |
| CN102384661A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Power generation device based on after heat of magnesia powder from magnesia calcination rotary kiln |
| CN103710550A (en) * | 2013-12-27 | 2014-04-09 | 兰新哲 | Method for poly-generation and large-scale coupling production based on semi coke and magnesium |
| CN109485360A (en) * | 2018-12-28 | 2019-03-19 | 西安交通大学 | A kind of building moulding material produced using magnesium-smelting silicothermic process waste residue as raw material and its method |
| CN109485360B (en) * | 2018-12-28 | 2020-11-10 | 西安交通大学 | Building forming material produced by taking waste residues generated in magnesium smelting by silicothermic process as raw materials and method thereof |
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| CN101096732B (en) | 2010-11-03 |
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