CN103739258A - Red mud cement and preparation method thereof - Google Patents
Red mud cement and preparation method thereof Download PDFInfo
- Publication number
- CN103739258A CN103739258A CN201310613578.XA CN201310613578A CN103739258A CN 103739258 A CN103739258 A CN 103739258A CN 201310613578 A CN201310613578 A CN 201310613578A CN 103739258 A CN103739258 A CN 103739258A
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- China
- Prior art keywords
- red mud
- cement
- sandstone
- gypsum
- blast furnace
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The present invention relates to a red mud cement, which is prepared from the following raw materials, by weight: 20-40% of red mud, 15-30% of sandstone, 30-50% of limestone, 2-5% of iron powder, 20-30% of blast furnace granulating slag, and 10-20% of gypsum. The preparation method comprises: co-grinding red mud, sandstone, limestone and iron powder into a raw slurry, adjusting to meet technical indexes, adopting an inflow method to remove most of water in an evaporator, placing into (or directly spraying into) a rotary kiln to fire a cement clinker at a temperature of 1400-1450 DEG C, and carrying out mixing grinding on the cement clinker, blast furnace granulating slag and gypsum in a cement mill to achieving a certain fineness so as to obtain the cement product. According to the invention, the industrial waste residue utilization rate is high, the cost is low, and the corrosion on iron and steel is low.
Description
Technical field
The present invention relates to a kind of material of construction and preparation method thereof, particularly a kind of red mud cement and preparation method thereof.
Background technology
At present, the contaminative waste residue of discharging when red mud is Aluminium industry extraction aluminum oxide, 1 ton of aluminum oxide of the every production of average, 1.0～2.0 tons of red muds of subsidiary generation.China is as the world the 4th large alumina producing state, and the red mud of annual discharge is up to millions of tons.A large amount of red muds can not fully effectively utilize, and can only rely on large-area stockyard to stack, and has taken a large amount of soils, also environment has been caused to serious pollution.Approximately 7,000 ten thousand tons of the annual red muds producing in the whole world, the annual red mud producing of China is more than 3,000 ten thousand tons.The production on the mankind of the generation of a large amount of red muds, life cause directly many-sided and indirectly impact, so reduce to greatest extent output and the harm of red mud, realization by all kinds of means, the resource utilization of quantity is extremely urgent greatly.The doping of the red mud on market is still seldom not high to the utilization ratio of red mud.
Summary of the invention
In order to solve still little shortcoming not high to the utilization ratio of red mud of doping of the red mud on market, the invention provides a kind of red mud cement and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is: described a kind of red mud cement, red mud, sandstone, Wingdale, iron powder, blast furnace granulated slag, gypsum, consist of, the following row weight percent of its raw material is made: red mud 20%-40%, sandstone 15%-30%, Wingdale 30%-50%, iron powder 2%-5%, blast furnace granulated slag 20%-30%, gypsum 10%-20%.
The preparation method of above-mentioned red mud cement, by red mud, sandstone, Wingdale, iron powder, jointly grind into charge pulp, adjust to and meet after technical indicator, in rapid steamer, remove after most of moisture with on-flow method, then enter (or directly spraying into) rotary kiln at 1400～1450 ℃ of calcination of cement clinker of temperature.Grog and blast furnace granulated slag, gypsum jointly mix and are ground to certain fineness and obtain cement products in cement grinding mill.
The invention has the beneficial effects as follows: industrial residue utilization rate is high, and cost is low, low to steel corrosion.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1:
Batching: red mud 20%, sandstone 15%, Wingdale 30%, iron powder 2%, blast furnace granulated slag 20%, gypsum 10%.
Manufacturing process: jointly grind into charge pulp by red mud, sandstone, Wingdale, iron powder, adjust to and meet after technical indicator, in rapid steamer, remove after most of moisture with on-flow method, then enter (or directly spraying into) rotary kiln at 1400～1450 ℃ of calcination of cement clinker of temperature.Grog and blast furnace granulated slag, gypsum jointly mix and are ground to certain fineness and obtain cement products in cement grinding mill.
Embodiment 2:
Batching: red mud 40%, sandstone 30%, Wingdale 50%, iron powder 5%, blast furnace granulated slag 30%, gypsum 20%.
Manufacturing process: jointly grind into charge pulp by red mud, sandstone, Wingdale, iron powder, adjust to and meet after technical indicator, in rapid steamer, remove after most of moisture with on-flow method, then enter (or directly spraying into) rotary kiln at 1400～1450 ℃ of calcination of cement clinker of temperature.Grog and blast furnace granulated slag, gypsum jointly mix and are ground to certain fineness and obtain cement products in cement grinding mill.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. a red mud cement, it is characterized in that: red mud, sandstone, Wingdale, iron powder, blast furnace granulated slag, gypsum, consist of, the following row weight percent of its raw material is made: red mud 20%-40%, sandstone 15%-30%, Wingdale 30%-50%, iron powder 2%-5%, blast furnace granulated slag 20%-30%, gypsum 10%-20%.
2. the preparation method of a red mud cement, it is characterized in that: by red mud, sandstone, Wingdale, iron powder, jointly grind into charge pulp, adjust to and meet after technical indicator, with on-flow method, in rapid steamer, remove after most of moisture, enter (or directly spraying into) rotary kiln at 1400～1450 ℃ of calcination of cement clinker of temperature, grog and blast furnace granulated slag, gypsum jointly mix and are ground to certain fineness and obtain cement products in cement grinding mill again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613578.XA CN103739258A (en) | 2013-11-28 | 2013-11-28 | Red mud cement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613578.XA CN103739258A (en) | 2013-11-28 | 2013-11-28 | Red mud cement and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103739258A true CN103739258A (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310613578.XA Pending CN103739258A (en) | 2013-11-28 | 2013-11-28 | Red mud cement and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103739258A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753343A (en) * | 2016-03-02 | 2016-07-13 | 广西鱼峰水泥股份有限公司 | Preparation method of maritime work Portland cement |
| CN106186747A (en) * | 2016-06-30 | 2016-12-07 | 浙江新业管桩有限公司 | A kind of method utilizing printing and dyeing sludge to prepare high strength clinker |
| CN108126602A (en) * | 2017-12-26 | 2018-06-08 | 重庆市新嘉南建材有限责任公司 | Utilize the method and mixing arrangement of red mud production cement |
-
2013
- 2013-11-28 CN CN201310613578.XA patent/CN103739258A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753343A (en) * | 2016-03-02 | 2016-07-13 | 广西鱼峰水泥股份有限公司 | Preparation method of maritime work Portland cement |
| CN106186747A (en) * | 2016-06-30 | 2016-12-07 | 浙江新业管桩有限公司 | A kind of method utilizing printing and dyeing sludge to prepare high strength clinker |
| CN108126602A (en) * | 2017-12-26 | 2018-06-08 | 重庆市新嘉南建材有限责任公司 | Utilize the method and mixing arrangement of red mud production cement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |