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
- Publication number
- 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
- Authority
- CN
- China
- Prior art keywords
- manganese sulfate
- light
- weight aggregate
- red mud
- sulfate slag
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The present invention relates to industrial solid castoff technical field of comprehensive utilization, especially 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 respectively at 7-12h dry in 45-65 DEG C of environment；Step (2), sample mixing: a part manganese sulfate slag is weighed by weight, part red mud is placed in container；Step (3), molding sample preparation: to dry blend plus suitable quantity of water；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 furnace, keep the temperature 10 minutes at this temperature, and light-weight aggregate is made after cooling.The present invention prepares a kind of light-weight aggregate using flue gas desulfurization manganese slag, and light-weight aggregate bulk density, the apparent density etc. comply with the national standard requirements, and can control water absorption rate by the additive amount of red mud; it can be used for the building materials fields such as concrete; step is simple, and industrial waste is re-used, and protects 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)
1. a kind of method for preparing light-weight aggregate using manganese sulfate slag and red mud, which comprises 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.
2. a kind of method for preparing light-weight aggregate using manganese sulfate slag and red mud according to claim 1, which is characterized in that step
Suddenly manganese sulfate slag in (2): red mud mass ratio is 1-9:1.
3. a kind of method for preparing light-weight aggregate using manganese sulfate slag and red mud according to claim 1, which is characterized in that packet
Include 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.
4. a kind of method for preparing light-weight aggregate using manganese sulfate slag and red mud according to claim 1, which is characterized in that packet
Include following steps:
Step (1), sample preparation: by manganese sulfate slag and red mud through 80 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 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.
5. a kind of method for preparing light-weight aggregate using manganese sulfate slag and red mud according to claim 1, which is characterized in that packet
Include 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.
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 |
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| 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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| 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 | Method for innocent 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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| CN104446364A (en) * | 2014-12-23 | 2015-03-25 | 广西龙共投资有限公司 | Method for preparing ceramsite through electrolytic manganese sulfate slag |
| 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 |
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 | Method for innocent 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 | 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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