CN106082288A - Utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and reclaim acid complexes - Google Patents
Utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and reclaim acid complexes Download PDFInfo
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- CN106082288A CN106082288A CN201610645061.2A CN201610645061A CN106082288A CN 106082288 A CN106082288 A CN 106082288A CN 201610645061 A CN201610645061 A CN 201610645061A CN 106082288 A CN106082288 A CN 106082288A
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- magnesium
- waste gas
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- absorbing liquid
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
- C01F5/06—Magnesia by thermal decomposition of magnesium compounds
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
- C01F5/06—Magnesia by thermal decomposition of magnesium compounds
- C01F5/12—Magnesia by thermal decomposition of magnesium compounds by thermal decomposition of magnesium sulfate, with or without reduction
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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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
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- Treating Waste Gases (AREA)
Abstract
The invention discloses one utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and reclaim acid complexes, including feeder, venturi blender, material multi cyclone preheating device, suspension roaster, Conveyance device, material multi whirlwind chiller, pressure fan, fuel nozzle, absorbing liquid enrichment facility, waste gas dust-removal device, air-introduced machine, apparatus for absorbing SO 2, desulfurizer, doctor solution elevator pump, absorbing liquid elevator pump, acid storage tank.Present invention comprises whole key elements of the production processes such as granular material preparation, feeding discharging, shower roasting, pre-heat utilization, exhaust-gas treatment；Product Activity is high, and granularity is little, and quality is good, is worth big；Utilization rate of waste heat is high, and efficiency is high, and effective, waste gas outlet temperature and drop temperature all reach less than 120 DEG C；Energy consumption is low, and material waste heat and hot waste gas waste heat make full use of, and greatly reduce energy consumption；Green production, closes and produces, waste gas qualified discharge after treatment；Production technology is advanced, and production efficiency is high, effective, stable, easy to operate.
Description
Technical field
The present invention relates to the process field of solid waste.
Background technology
Magnesite belongs to country's grand strategy resource.China's magnesite reserves account for the 24% of world saving, occupy the world first
Position.China is magnesite resource and magnesian big producing country, and the product that magnesite produces mainly has light calcined magnesia, reheating to aoxidize
Magnesium and electrically molten magnesia.Light calcined magnesia be magnesite at about the 800 DEG C active products obtained, be mainly used in flue gas
Acid neutralizing agent and pottery, the raw materials etc. of fine chemistry industry such as desulfurization, water process.Dead burned magnesia is that magnesite obtains at about 1700 DEG C
The deactivated product arrived, is mainly used in refractory material.Electrically molten magnesia be magnesite about 2500 DEG C obtain lose
The product of activity, is mainly used in high grade refractory.
According to estimates, China's coal power generation flue gas magnesium processes wet type desulfurizing needs light calcined magnesia 7,000 ten thousand tons, the sulphuric acid of generation every year
200,000,000 tons of magnesium magnesium sulfite waste material.Magnesium sulfate Asia can serve as process hides, explosive, papermaking, porcelain, fertilizer, and medically oral rushes down
Medicine etc..Magnesium sulfate measures fertilizer in being used in agricultural, is normally used for crops and the potted plant of magnesium deficiency, used also as bath
Salt.At present, the magnesium sulfate magnesium sulfite waste material that China's flue gas magnesium processes wet type desulfurizing produces all is mixed cinder and is discarded or utilize, and utilizes
It is worth the lowest, has no other reports utilized and data.
Summary of the invention
Technical problem solved by the invention is to provide one and utilizes magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and return
Receive acid complexes, overcome the deficiency that in prior art, magnesium sulfate magnesium sulfite waste material value is low.
The technical solution used in the present invention is, utilizes magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium to become suit with reclaiming acid
Put, including feeder, venturi blender, material multi cyclone preheating device, suspension roaster, Conveyance device, material
Multistage cyclone chiller, pressure fan, fuel nozzle, absorbing liquid enrichment facility, waste gas dust-removal device, air-introduced machine, sulfur dioxide
Absorption plant, desulfurizer, doctor solution elevator pump, absorbing liquid elevator pump, acid storage tank；
Conveyance device includes circular cylinder, and cylinder sidewall is provided with gas material import, the air inlet side of gas material import
To avoiding cylinder axis, along cylinder clockwise or counterclockwise, it is provided with aggregate bin below cylinder, under aggregate bin
Side is discharging opening, and cylinder center is provided with discharge, and discharge upper end protrudes upward cylinder；
Material multi cyclone preheating device is interconnected to constitute by multiple Conveyance devices；
Material multi whirlwind chiller is also interconnected to constitute by multiple Conveyance devices；
Magnesium sulfate magnesium sulfite waste residue granular material is sent into venturi blender by feeder, is simultaneously from material multi rotation
The hot waste gas of wind preheating device is also into venturi blender, and material enters the pre-hot charging of material multi whirlwind after mixing with hot waste gas
The first order put utilizes hot waste gas waste heat preheating material, and material graded preheats, and afterbody preheating material enters suspension roaster
Carrying out entering Conveyance device after flash resolves into magnesium oxide and sulfur dioxide, the magnesium oxide separated enters material multi
The first order cooling down of whirlwind chiller, thermal oxide magnesium graded cools down, afterbody cooling magnesium oxide discharging；Air is by sending
Blower fan is sent into the afterbody of material multi whirlwind chiller and is absorbed heat intensification from thermal material, and air graded preheats, thing
The preheated air of the material multistage cyclone chiller first order enters suspension roaster, reacts with the fuel of fuel nozzle ejection
Producing heat material makes its flash decompose, and decomposes the hot waste gas after the sulfur dioxide produced and burning and enters Conveyance dress
Putting, the hot waste gas separated enters the afterbody cooling of material multi cyclone preheating device, and hot waste gas graded is lowered the temperature, material
The first order cooling waste gas of multistage cyclone preheating device enters sulfur dioxide absorbing liquid enrichment facility and carries out vapor liquid heat exchange, enters one
Step reduces EGT, and waste gas enters dust arrester dedusting afterwards, and the waste gas of dedusting enters sulfur dioxide through air-introduced machine and absorbs
Device, sulfur dioxide transfer in water formed sulfurous acid, waste gas enter desulfurizer carry out desulfurization process, process heel row up to standard
Put；Partial desulfurization liquid promotes feeding apparatus for absorbing SO 2 as sulfur dioxide absorbing liquid through doctor solution elevator pump and absorbs dioxy
Changing sulfur, the absorbing liquid after sulfur dioxide absorption enters absorbing liquid enrichment facility through absorbing liquid elevator pump and is evaporated concentrating, and concentrates
Liquid enters acid storage tank, and boil-off gas returns to apparatus for absorbing SO 2.
Magnesium sulfate magnesium sulfite waste residue is utilized as raw material regenerating oxidation magnesium and to reclaim acid.
The invention has the beneficial effects as follows that Product Activity is high, granularity is little, and quality is good, is worth big；Utilization rate of waste heat is high, efficiency
Height, effective, waste gas outlet temperature and drop temperature all reach less than 120 DEG C；Energy consumption is low, and material waste heat and hot waste gas waste heat fill
Divide and utilize, greatly reduce energy consumption；Green production, closes and produces, waste gas qualified discharge after treatment；Production technology is advanced, raw
Product efficiency is high, effective, stable, easy to operate.
Accompanying drawing explanation
Fig. 1 is to utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and reclaim acid complexes schematic diagram.
Fig. 2 is gas material process chart of the present invention.
Reference: 1-feeder, 2-venturi blender, 3-material multi cyclone preheating device, 4-suspension roaster,
5-Conveyance device, 6-material multi whirlwind chiller, 7-pressure fan, 8-fuel nozzle, 81-fuel inlet, 9-absorb
Liquid enrichment facility, 10-dust arrester, 11-air-introduced machine, 12-apparatus for absorbing SO 2,13-desulfurizer, 14-doctor solution carry
Rise pump, 15-absorbing liquid elevator pump, 16-acid storage tank.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
Complexes are to utilize magnesium sulfate magnesium sulfite waste residue as raw material regenerating oxidation magnesium and to reclaim sour basic equipment,
Integrated advanced technology, grasp procedure parameter utilize magnesium sulfate magnesium sulfite waste residue as raw material regenerating oxidation magnesium and to reclaim acid
One of key technology.
The complexes of the present invention are by feeder, venturi blender, material multi cyclone preheating device, suspension roasting
Stove, Conveyance device, material multi whirlwind chiller, pressure fan, fuel nozzle, absorbing liquid enrichment facility, waste gas dedusting
Device, air-introduced machine, apparatus for absorbing SO 2, desulfurizer, doctor solution elevator pump, absorbing liquid elevator pump, acid storage tank composition.
Below in conjunction with embodiment, invention is further described.Accompanying drawing is embodiment schematic diagram, in the present embodiment, magnesium sulfate
Magnesium sulfite waste residue granular material is sent into venturi blender 2 by feeder 1, and material enters material three grades after mixing with hot waste gas
The first order of cyclone preheating device 3 utilizes hot waste gas waste heat preheating material, and material graded preheats, and afterbody preheating material enters
Suspension roaster 4 carries out entering Conveyance device 5, the magnesium oxide separated after flash resolves into magnesium oxide and sulfur dioxide
Entering the first order cooling down of three grades of whirlwind chillers 6 of material, thermal oxide magnesium graded cools down, afterbody cooling magnesium oxide
Discharging.
Air is sent into the afterbody of three grades of whirlwind chillers 6 of material by pressure fan 7 and is absorbed heat liter from thermal material
Temperature, air graded preheats, and the preheated air of three grades of whirlwind chiller 6 first order enters suspension roaster 4, with fuel nozzle 8
Ejection fuel react generation heat material make its flash decompose, decompose produce sulfur dioxide and burn after heat
Waste gas enters Conveyance device 5, and the hot waste gas separated enters the afterbody fall of three grades of cyclone preheating devices 3 of material
Temperature, the cooling of hot waste gas graded, the first order cooling waste gas of three grades of cyclone preheating devices 3 of material enters sulfur dioxide absorbing liquid and concentrates
Device 9 carries out vapor liquid heat exchange, reduces EGT further.
Waste gas enters dust arrester 10 dedusting afterwards, and the waste gas of dedusting enters apparatus for absorbing SO 2 through air-introduced machine 11
12, sulfur dioxide transfers to be formed in water sulfurous acid, and waste gas enters desulfurizer 13 and carries out desulfurization process, processes heel row up to standard
Put；Partial desulfurization liquid carries 14 liters of feeding apparatus for absorbing SO 2 12 as sulfur dioxide absorbing liquid through doctor solution elevator pump and absorbs
Sulfur dioxide, the absorbing liquid after sulfur dioxide absorption enters absorbing liquid enrichment facility 9 through absorbing liquid elevator pump 15 and is evaporated dense
Contracting, concentrated solution enters acid storage tank 16, and boil-off gas returns to apparatus for absorbing SO 2 12.
These complexes achieve and utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium on a large scale and reclaim acid, and equipment is first
Entering Integration ofTechnology degree high, production technology is advanced, and production efficiency is high, effective, stable, easy to operate；Product Activity is high, grain
Spending little, quality is good, is worth big；Material waste heat and hot waste gas waste heat make full use of, and greatly reduce energy consumption；Waste gas outlet temperature
Low, close and produce, waste gas qualified discharge after treatment, green production.
These complexes have a characteristic that
Utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium the most on a large scale and reclaim acid
2. complexes, include granular material preparation, feeding discharging, shower roasting, pre-heat utilization, exhaust-gas treatment etc. raw
Whole key elements of product process；
3. advanced technology integrated level is high, is integrated with shower roasting, pre-heat utilization, the advanced technology of exhaust-gas treatment；
4. Product Activity is high, and granularity is little, and quality is good, is worth big；
5. utilization rate of waste heat is high, and efficiency is high, and effective, waste gas outlet temperature and drop temperature all reach less than 120 DEG C；
6. energy consumption is low, and material waste heat and hot waste gas waste heat make full use of, and greatly reduce energy consumption；
7. green production, closes and produces, waste gas qualified discharge after treatment；
8. production technology is advanced, and production efficiency is high, effective, stable, easy to operate.
Claims (2)
1. utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and reclaim acid complexes, it is characterised in that: include feeder,
Venturi blender, material multi cyclone preheating device, suspension roaster, Conveyance device, material multi whirlwind cooling dress
Put, pressure fan, fuel nozzle, absorbing liquid enrichment facility, waste gas dust-removal device, air-introduced machine, apparatus for absorbing SO 2, desulfurization dress
Put, doctor solution elevator pump, absorbing liquid elevator pump, acid storage tank；
Conveyance device includes circular cylinder, and cylinder sidewall is provided with gas material import, and the airintake direction of gas material import is kept away
Open cylinder axis, along cylinder clockwise or counterclockwise, below cylinder, be provided with aggregate bin, below aggregate bin be
Discharging opening, cylinder center is provided with discharge, and discharge upper end protrudes upward cylinder；
Material multi cyclone preheating device (3) is interconnected to constitute by multiple Conveyance devices；
Material multi whirlwind chiller (6) is also interconnected to constitute by multiple Conveyance devices；
Magnesium sulfate magnesium sulfite waste residue granular material is sent into venturi blender (2) by feeder (1), is simultaneously from material multi
The hot waste gas of cyclone preheating device (3) is also into venturi blender (2), and material enters material multi rotation with hot waste gas after mixing
The first order of wind preheating device (3) utilizes hot waste gas waste heat preheating material, and material graded preheats, and afterbody preheating material enters
Suspension roaster (4) carries out entering Conveyance device (5), the oxygen separated after flash resolves into magnesium oxide and sulfur dioxide
Changing magnesium and enter the first order cooling down of material multi whirlwind chiller (6), thermal oxide magnesium graded cools down, and afterbody cools down
Magnesium oxide discharging；The afterbody that air is sent into material multi whirlwind chiller (6) by pressure fan (7) absorbs from thermal material
Heat heats up, and air graded preheats, and the preheated air of material multi whirlwind chiller (6) first order enters suspension roaster
(4), the fuel sprayed with fuel nozzle (8) the generation heat material that reacts makes its flash decompose, decomposes the two of generation
Hot waste gas after sulfur oxide and burning enters Conveyance device (5), and it is pre-that the hot waste gas separated enters material multi whirlwind
The afterbody cooling of thermal (3), the cooling of hot waste gas graded, the first order cooling of material multi cyclone preheating device (3) is useless
Gas enters sulfur dioxide absorbing liquid enrichment facility (9) and carries out vapor liquid heat exchange, reduces EGT further, and waste gas enters afterwards
Dust arrester (10) dedusting, the waste gas of dedusting enters apparatus for absorbing SO 2 (12) through air-introduced machine (11), and sulfur dioxide turns
Moving on to be formed in water sulfurous acid, waste gas enters desulfurizer (13) and carries out desulfurization process, processes rear discharge up to standard；Partial desulfurization liquid
Feeding apparatus for absorbing SO 2 (11) sulfur dioxide absorption is promoted through doctor solution elevator pump (14) as sulfur dioxide absorbing liquid,
Absorbing liquid after sulfur dioxide absorption enters absorbing liquid enrichment facility (9) through absorbing liquid elevator pump (15) and is evaporated concentrating, dense
Contracting liquid enters acid storage tank (16), and boil-off gas returns to apparatus for absorbing SO 2 (12).
Utilizing magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium the most as claimed in claim 1 and reclaim acid complexes, it is special
Levy and be: utilize magnesium sulfate magnesium sulfite waste residue as raw material regenerating oxidation magnesium and to reclaim acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645061.2A CN106082288B (en) | 2016-08-08 | 2016-08-08 | Utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and recovery acid complexes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645061.2A CN106082288B (en) | 2016-08-08 | 2016-08-08 | Utilize magnesium sulfate magnesium sulfite waste residue regenerating oxidation magnesium and recovery acid complexes |
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| CN106082288A true CN106082288A (en) | 2016-11-09 |
| CN106082288B CN106082288B (en) | 2018-09-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052438A (en) * | 2018-07-12 | 2018-12-21 | 山东汇泰再生资源有限公司 | It is a kind of to prepare method of magnesium oxide using magnesium sulfite |
| CN110921633A (en) * | 2019-10-30 | 2020-03-27 | 郑州轻工业学院 | Method for recycling byproducts of magnesium oxide wet flue gas desulfurization of power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111187A (en) * | 2013-02-06 | 2013-05-22 | 盛尼克能源环保技术(重庆)有限公司 | System and method for regenerating magnesium oxides and sulfur dioxides through decomposition of magnesium oxide desulphurization by-products |
| CN103265053A (en) * | 2013-06-13 | 2013-08-28 | 江苏远东环保工程有限公司 | Method for recycling sulfate from desulfurization waste liquor and equipment system for implementing method |
| CN103435277A (en) * | 2013-08-23 | 2013-12-11 | 北京科太亚洲生态科技有限公司 | Internal gas burning shaft kiln and method for producing light burned magnesia |
| CN105197968A (en) * | 2015-09-15 | 2015-12-30 | 中国科学院过程工程研究所 | Method and device for producing high-purity magnesium oxide and co-producing industrial concentrated hydrochloric acid through partially hydrated magnesium chloride fluidization pyrolysis |
-
2016
- 2016-08-08 CN CN201610645061.2A patent/CN106082288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111187A (en) * | 2013-02-06 | 2013-05-22 | 盛尼克能源环保技术(重庆)有限公司 | System and method for regenerating magnesium oxides and sulfur dioxides through decomposition of magnesium oxide desulphurization by-products |
| CN103265053A (en) * | 2013-06-13 | 2013-08-28 | 江苏远东环保工程有限公司 | Method for recycling sulfate from desulfurization waste liquor and equipment system for implementing method |
| CN103435277A (en) * | 2013-08-23 | 2013-12-11 | 北京科太亚洲生态科技有限公司 | Internal gas burning shaft kiln and method for producing light burned magnesia |
| CN105197968A (en) * | 2015-09-15 | 2015-12-30 | 中国科学院过程工程研究所 | Method and device for producing high-purity magnesium oxide and co-producing industrial concentrated hydrochloric acid through partially hydrated magnesium chloride fluidization pyrolysis |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052438A (en) * | 2018-07-12 | 2018-12-21 | 山东汇泰再生资源有限公司 | It is a kind of to prepare method of magnesium oxide using magnesium sulfite |
| CN110921633A (en) * | 2019-10-30 | 2020-03-27 | 郑州轻工业学院 | Method for recycling byproducts of magnesium oxide wet flue gas desulfurization of power station |
| CN110921633B (en) * | 2019-10-30 | 2021-05-28 | 郑州轻工业学院 | Method for recycling byproducts of magnesium oxide wet flue gas desulfurization of power station |
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| CN106082288B (en) | 2018-09-04 |
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