CN109608073A - A method of light-weight aggregate is prepared using manganese sulfate slag and red mud - Google Patents
A method of light-weight aggregate is prepared using manganese sulfate slag and red mud Download PDFInfo
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- CN109608073A CN109608073A CN201811600599.7A CN201811600599A CN109608073A CN 109608073 A CN109608073 A CN 109608073A CN 201811600599 A CN201811600599 A CN 201811600599A CN 109608073 A CN109608073 A CN 109608073A
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- red mud
- manganese sulfate
- sulfate slag
- light aggregate
- sample
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- 239000002893 slag Substances 0.000 title claims abstract description 59
- 229940099596 manganese sulfate Drugs 0.000 title claims abstract description 56
- 239000011702 manganese sulphate Substances 0.000 title claims abstract description 56
- 235000007079 manganese sulphate Nutrition 0.000 title claims abstract description 56
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims 4
- 235000012054 meals Nutrition 0.000 claims 4
- 238000003756 stirring Methods 0.000 claims 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052748 manganese Inorganic materials 0.000 abstract description 9
- 239000011572 manganese Substances 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 238000006477 desulfuration reaction Methods 0.000 abstract description 3
- 230000023556 desulfurization Effects 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 239000002910 solid waste Substances 0.000 abstract description 2
- 238000007580 dry-mixing Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 7
- 238000012216 screening Methods 0.000 description 7
- 238000010792 warming Methods 0.000 description 7
- 238000005303 weighing Methods 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明涉及工业固体废弃物综合利用技术领域，尤其是一种利用硫酸锰渣和赤泥制备轻集料的方法，包括以下步骤：步骤（1）、样品制备：将硫酸锰渣和赤泥分别于45‑65℃环境中干燥7‑12h；步骤（2）、样品混合：按重量份称取份硫酸锰渣、份赤泥置于容器中；步骤（3）、成型制样：向干混料加适量水；步骤（4）、烘干和焙烧：将在105℃条件下干燥后的轻集料生料放入高温炉中，在此温度下保温10分钟，冷却后制得轻集料。本发明利用烟气脱硫锰渣制备一种轻集料，该轻集料堆积密度、表观密度等符合国家标准要求，可通过赤泥的添加量控制吸水率，可用于混凝土等建材领域，步骤简单，将工业废物重新利用，保护了环境。
The invention relates to the technical field of comprehensive utilization of industrial solid waste, in particular to a method for preparing light aggregates by utilizing manganese sulfate slag and red mud, comprising the following steps: step (1), sample preparation: separate manganese sulfate slag and red mud Dry at 45-65°C for 7-12h; step (2), sample mixing: weigh parts of manganese sulfate slag and part of red mud by weight and place them in a container; step (3), molding sample preparation: to dry mixing Add an appropriate amount of water to the material; step (4), drying and roasting: put the light aggregate raw material dried at 105°C into a high-temperature furnace, keep at this temperature for 10 minutes, and cool down to obtain light aggregate . The invention uses flue gas desulfurization manganese slag to prepare a light aggregate, the bulk density and apparent density of the light aggregate meet the requirements of national standards, the water absorption rate can be controlled by the addition amount of red mud, and the light aggregate can be used in the field of building materials such as concrete. Simple, reuse of industrial waste, protecting the environment.
Description
Technical field
The present invention relates to industrial solid castoff technical field of comprehensive utilization more particularly to a kind of utilize manganese sulfate slag and red
The method of clay standby light-weight aggregate.
Background technique
Pyrolusite is important manganese resource, industrially by pyrolusite and reducing agent hybrid reaction, can prepare as needed
The products such as manganese sulfate out.It is separated by filtration the acid waste residue that manganese sulfate solution obtains, commonly referred to as " manganese sulfate slag " or referred to as " manganese
Slag ".Manganese sulfate slag is big in China manganese tessellated region discharge amount, and comprehensive utilization degree is low.The manganese slag largely stored up both occupies soil
Ground, and environmental threat is caused to Soil Surrounding water body etc..Therefore, the Processes For Effective Conversion of manganese slag is developed, it is extremely urgent.
The ingredient of manganese sulfate slag depends on the production technology of pyrolusite material composition and manganese sulfate, typically contain silicon, iron,
The chemical compositions such as aluminium, calcium and manganese, sulphur.Manganese sulfate slag is there are different type, the wherein dioxide-containing silica of flue gas desulfurization manganese slag
Reach 50% or more.Therefore, during exploring manganese slag for comprehensive utilization ways, the material composition feature in conjunction with manganese sulfate slag is needed.
Red mud is a kind of alkali solid waste residue of discharge during bauxite into alumina.Currently, 1 ton of oxidation of every production
Aluminium about discharges 1-1.5 tons of red mud.Domestic aluminium oxide yield is up to 60,900,000 tons within 2016, calculates China's red mud accordingly
Annual emissions at 80,000,000 tons or so, add up 3.5 hundred million tons of volume of cargo in storage or more.Generally, red mud have material composition it is complicated,
The features such as partial size is tiny, discharge amount is big, alkaline and radioactivity.The comprehensive utilization difficulty that features described above also results in red mud is big, at present
In worldwide, the extensive consumption of red mud is not yet realized.Similar with manganese sulfate slag, the stockpiling of red mud occupies a large amount of soils,
And there is potential threat to ecological environment.
Using two kinds of industrial residues of red mud of acid manganese sulfate slag and alkalinity as raw material, is developed and opened by the two synergistic effect
Hair comprehensive utilization new way, is of great significance to manganese sulfate industry and the consumption of aluminum oxide industry waste residue.
Summary of the invention
The purpose of the present invention is to solve disadvantage existing in the prior art, and propose it is a kind of using manganese sulfate slag and
The method that red mud prepares light-weight aggregate.
To achieve the goals above, present invention employs following technical solutions:
Design a kind of method for preparing light-weight aggregate using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud after 7-12h dry in 45-65 DEG C of environment, smashing and grinding
Sieve screening through 60-100 mesh, is made sample；
Step (2), sample mixing: 30-120 parts of manganese sulfate slags are weighed by weight, 5-65 parts of red muds are placed in container, mixing is stirred
It mixes uniformly；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 5-
8 DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, and light-weight aggregate is made after cooling.
Preferably, manganese sulfate slag in step (2): red mud mass ratio is 1-9:1.
Preferably, the method for preparing light-weight aggregate using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 60 mesh after 10h dry in 60 DEG C of environment, smashing and grinding
Sieve screening, be made sample；
Step (2), sample mixing: weighing 90 parts of manganese sulfate slags, 10 parts of red muds are placed in container by weight, is mixed equal
It is even；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 5
DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, light-weight aggregate is made after cooling.
Preferably, the method for preparing light-weight aggregate using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 80 mesh after 10h dry in 60 DEG C of environment, smashing and grinding
Sieve screening, be made sample；
Step (2), sample mixing: weighing 75 parts of manganese sulfate slags, 25 parts of red muds are placed in container by weight, is mixed equal
It is even；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 7
DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, light-weight aggregate is made after cooling.
Preferably, the method for preparing light-weight aggregate using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 100 after 10h dry in 60 DEG C of environment, smashing and grinding
The screening of purpose sieve, is made sample；
Step (2), sample mixing: weighing 50 parts of manganese sulfate slags, 50 parts of red muds are placed in container by weight, is mixed equal
It is even；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 8
DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, light-weight aggregate is made after cooling.
A kind of method preparing light-weight aggregate using manganese sulfate slag and red mud proposed by the present invention, beneficial effect are: utilizing
Flue gas desulfurization manganese slag prepares a kind of light-weight aggregate, and light-weight aggregate bulk density, the apparent density etc. comply with the national standard requirements, and can pass through
The additive amount of red mud controls water absorption rate, can be used for the building materials fields such as concrete, and step is simple, and industrial waste is re-used, and protects
Environment is protected.
Detailed description of the invention
Attached drawing 1 is the light-weight aggregate pictorial diagram that manganese sulfate slag and red mud are obtained by 7:3 mixed sintering.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
Embodiment one
A method of light-weight aggregate is prepared using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 60 mesh after 10h dry in 60 DEG C of environment, smashing and grinding
Sieve screening, be made sample；
Step (2), sample mixing: weighing 90 parts of manganese sulfate slags, 10 parts of red muds are placed in container by weight, is mixed equal
It is even；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 5
DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, light-weight aggregate is made after cooling.
Light-weight aggregate bulk density obtained by the embodiment is 1100 kg/m3, apparent density is 1870 kg/m3, 1h water absorption rate
3.25 %, 41.18 % of voidage.
Embodiment two
A method of light-weight aggregate is prepared using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 80 mesh after 10h dry in 60 DEG C of environment, smashing and grinding
Sieve screening, be made sample；
Step (2), sample mixing: weighing 75 parts of manganese sulfate slags, 25 parts of red muds are placed in container by weight, is mixed equal
It is even；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 7
DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, light-weight aggregate is made after cooling.
Light-weight aggregate bulk density obtained by the example is 1111 kg/m3, apparent density is 2000 kg/m3, 1h water absorption rate 1.44
%, 44.45 % of voidage.
Embodiment three
A method of light-weight aggregate is prepared using manganese sulfate slag and red mud, comprising the following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 100 after 10h dry in 60 DEG C of environment, smashing and grinding
The screening of purpose sieve, is made sample；
Step (2), sample mixing: weighing 50 parts of manganese sulfate slags, 50 parts of red muds are placed in container by weight, is mixed equal
It is even；
Step (3), molding sample preparation: it to dry blend plus suitable quantity of water, is made granular or coccoid；
Step (4), drying and roasting: the light-weight aggregate raw material after will be dry under the conditions of 105 DEG C are put into high temperature kiln roasting, with 8
DEG C/min is warming up to 1100 DEG C, keeps the temperature 10 minutes at this temperature, light-weight aggregate is made after cooling.
Light-weight aggregate bulk density obtained by the example is 1053 kg/m3, apparent density is 2000 kg/m3, 1h water absorption rate
11.76 %, 47.35 % of voidage.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811600599.7A CN109608073A (en) | 2018-12-26 | 2018-12-26 | A method of light-weight aggregate is prepared using manganese sulfate slag and red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811600599.7A CN109608073A (en) | 2018-12-26 | 2018-12-26 | A method of light-weight aggregate is prepared using manganese sulfate slag and red mud |
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| Publication Number | Publication Date |
|---|---|
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| CN201811600599.7A Pending CN109608073A (en) | 2018-12-26 | 2018-12-26 | A method of light-weight aggregate is prepared using manganese sulfate slag and red mud |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294626A (en) * | 2019-07-17 | 2019-10-01 | 于克福 | Using waste materials such as red muds as ecological sandstone aggregate of raw material and preparation method thereof |
| CN110681669A (en) * | 2019-09-29 | 2020-01-14 | 中国科学院地球化学研究所 | A method for harmless treatment of barium slag by utilizing red mud |
| CN111548039A (en) * | 2020-04-22 | 2020-08-18 | 深圳大学 | Red mud geopolymer aggregate and preparation method thereof |
| CN113003971A (en) * | 2021-03-11 | 2021-06-22 | 重庆昊磐节能科技有限公司 | High-strength lightweight aggregate prepared from manganese slag and preparation method thereof |
| CN113087328A (en) * | 2021-04-26 | 2021-07-09 | 中国科学院地球化学研究所 | Method for removing sodium and potassium in red mud by using manganese slag leachate |
| CN115073137A (en) * | 2022-07-23 | 2022-09-20 | 贵州金瑞新材料有限责任公司 | Production process for producing light environment-friendly building material by using manganese sulfate waste residue |
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| CN106866011A (en) * | 2017-02-16 | 2017-06-20 | 福建江夏学院 | A kind of microwave sintering method of red mud porcelain granule |
| CN107129238A (en) * | 2017-07-04 | 2017-09-05 | 河南理工大学 | A kind of method that use red mud prepares unburned lightweight aggregate |
| CN108329049A (en) * | 2018-02-07 | 2018-07-27 | 贵州中科鸿塬环保科技有限公司 | A kind of puffing lightweight aggregate of electrolytic manganese residues and harmless regeneration processing utilize method |
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| CN107129238A (en) * | 2017-07-04 | 2017-09-05 | 河南理工大学 | A kind of method that use red mud prepares unburned lightweight aggregate |
| CN108329049A (en) * | 2018-02-07 | 2018-07-27 | 贵州中科鸿塬环保科技有限公司 | A kind of puffing lightweight aggregate of electrolytic manganese residues and harmless regeneration processing utilize method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294626A (en) * | 2019-07-17 | 2019-10-01 | 于克福 | Using waste materials such as red muds as ecological sandstone aggregate of raw material and preparation method thereof |
| CN110681669A (en) * | 2019-09-29 | 2020-01-14 | 中国科学院地球化学研究所 | A method for harmless treatment of barium slag by utilizing red mud |
| CN111548039A (en) * | 2020-04-22 | 2020-08-18 | 深圳大学 | Red mud geopolymer aggregate and preparation method thereof |
| CN111548039B (en) * | 2020-04-22 | 2022-05-27 | 深圳大学 | Red mud geopolymer aggregate and preparation method thereof |
| CN113003971A (en) * | 2021-03-11 | 2021-06-22 | 重庆昊磐节能科技有限公司 | High-strength lightweight aggregate prepared from manganese slag and preparation method thereof |
| CN113087328A (en) * | 2021-04-26 | 2021-07-09 | 中国科学院地球化学研究所 | Method for removing sodium and potassium in red mud by using manganese slag leachate |
| CN113087328B (en) * | 2021-04-26 | 2022-03-18 | 中国科学院地球化学研究所 | A kind of method that utilizes manganese slag leachate to remove sodium and potassium in red mud |
| CN115073137A (en) * | 2022-07-23 | 2022-09-20 | 贵州金瑞新材料有限责任公司 | Production process for producing light environment-friendly building material by using manganese sulfate waste residue |
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Application publication date: 20190412 |