CN103613405A - Preparation method of porous red mud cement brick - Google Patents

Preparation method of porous red mud cement brick Download PDF

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Publication number
CN103613405A
CN103613405A CN201310615179.7A CN201310615179A CN103613405A CN 103613405 A CN103613405 A CN 103613405A CN 201310615179 A CN201310615179 A CN 201310615179A CN 103613405 A CN103613405 A CN 103613405A
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CN
China
Prior art keywords
red mud
cement
brick
preparation
cement brick
Prior art date
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.)
Pending
Application number
CN201310615179.7A
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Chinese (zh)
Inventor
孟繁茂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU GU NEGATIVE CARBON MATERIAL TECHNOLOGY Co Ltd
Original Assignee
SUZHOU GU NEGATIVE CARBON MATERIAL TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by SUZHOU GU NEGATIVE CARBON MATERIAL TECHNOLOGY Co Ltd filed Critical SUZHOU GU NEGATIVE CARBON MATERIAL TECHNOLOGY Co Ltd
Priority to CN201310615179.7A priority Critical patent/CN103613405A/en
Publication of CN103613405A publication Critical patent/CN103613405A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The invention relates to a preparation method of a porous red mud cement brick, which comprises the following steps: grinding 30-50% of red mud, 20-30% of sandstone, 20-40% of limestone and 4-10% of iron powder into a raw slurry, regulating until the raw slurry conforms to the technical indexes, removing most water by an inflow process with an evaporator, directly spraying into a rotary kiln, firing into cement clinker at 1400-1450 DEG C, carrying mix grinding on the clinker, 20-30% of blast furnace grain slag and 10-20% of gypsum in a cement grinder to a certain fineness, adding water into the mixture, stirring, adding 10-20% of straw powder, grinding, injecting into a mold, oscillating, molding, airing, calcining the aired brick in the kiln for 30-100 minutes, and curing under the pressure of 0.08-0.12 Mpa for 48-72 hours to obtain the required red mud cement brick. The method has the advantages of high utilization ratio of industrial waste residue, low cost, short maintenance time and low curing conditions.

Description

A kind of preparation method of porous red mud cement brick
Technical field
The present invention relates to a kind of preparation method of material of construction, particularly a kind of preparation method of porous red mud cement brick.
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.The annual red mud producing of the annual red mud approximately 7000 Wan Dun, China that produce in the whole world is more than 3,000 ten thousand tons.The generation of a large amount of red muds causes directly many-sided and indirectly impact to the mankind's production, life, 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
For the doping that solves the red mud on market seldom not high to the utilization ratio of red mud shortcoming still, the invention provides a kind of preparation method of porous red mud cement brick.
The technical solution adopted for the present invention to solve the technical problems is: the preparation method of described porous red mud cement brick, by red mud 20%-40%, sandstone 15%-30%, Wingdale 30%-50%, iron powder 2%-5% grinds into charge pulp jointly, adjust to and meet after technical indicator, with on-flow method, in rapid steamer, remove after most of moisture, directly spray into rotary kiln at 1400~1450 ℃ of calcination of cement clinker of temperature, grog and blast furnace granulated slag 20%-30%, gypsum 10%-20% jointly mixes and is ground to certain fineness in cement grinding mill, said mixture is added to water to be stirred and adds 10%-20% straw powder, mixed grind, injection molding, vibration, moulding, air-dry, then the fragment of brick after air-dry is put into stove 300-400 ℃ of calcining 30-100 minute, its maintenance pressure is 0.08-0.12Mpa, curing time is that 48h-72h obtains required red mud cement brick.
The invention has the beneficial effects as follows: industrial residue utilization rate is high, and cost is low, curing time is short, curing condition is low, perforated brick heat insulation, sound-proofing properties is strong.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1: the preparation method of described porous red mud cement brick, by red mud 30%, sandstone 20%, Wingdale 20%, iron powder 4% grinds into charge pulp jointly, adjust to and meet after technical indicator, with on-flow method, in rapid steamer, remove after most of moisture, directly spray into rotary kiln at 1400~1450 ℃ of calcination of cement clinker of temperature, grog and blast furnace granulated slag 20%, gypsum 10%% jointly mixes and is ground to certain fineness in cement grinding mill, said mixture is added to water to be stirred and adds 10% straw powder, mixed grind, injection molding, vibration, moulding, air-dry, then the fragment of brick after air-dry is put into stove 300-400 ℃ of calcining 30-100 minute, its maintenance pressure is 0.08-0.12Mpa, curing time is that 48h-72h obtains required red mud cement brick.
Embodiment 2: the preparation method of described porous red mud cement brick, by red mud 40%, sandstone 30%, Wingdale 50%, iron powder 2%-5% grinds into charge pulp jointly, adjust to and meet after technical indicator, with on-flow method, in rapid steamer, remove after most of moisture, directly spray into rotary kiln at 1400~1450 ℃ of calcination of cement clinker of temperature, grog and blast furnace granulated slag 30%, gypsum 20% jointly mixes and is ground to certain fineness in cement grinding mill, said mixture is added to water to be stirred and adds 20% straw powder, mixed grind, injection molding, vibration, moulding, air-dry, then the fragment of brick after air-dry is put into stove 300-400 ℃ of calcining 30-100 minute, its maintenance pressure is 0.08-0.12Mpa, curing time is that 48h-72h obtains required red mud cement brick.
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 (1)

1. the preparation method of a porous red mud cement brick, it is characterized in that, by red mud 30%-50%, sandstone 20%-30%, Wingdale 20%-40%, iron powder 4%-10% grinds into charge pulp jointly, with on-flow method, in rapid steamer, remove after most of moisture, directly spray into rotary kiln at 1400~1450 ℃ of calcination of cement clinker of temperature, grog and blast furnace granulated slag 20%-30%, gypsum 10%-20% jointly mixes and is ground to certain fineness in cement grinding mill, said mixture is added to water to be stirred and adds 10%-20% straw powder, mixed grind, injection molding, vibration, moulding, air-dry, then the fragment of brick after air-dry is put into stove 300-400 ℃ of calcining 30-100 minute, its maintenance pressure is 0.08-0.12Mpa, curing time is that 48h-72h obtains required red mud cement brick.
CN201310615179.7A 2013-11-28 2013-11-28 Preparation method of porous red mud cement brick Pending CN103613405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310615179.7A CN103613405A (en) 2013-11-28 2013-11-28 Preparation method of porous red mud cement brick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310615179.7A CN103613405A (en) 2013-11-28 2013-11-28 Preparation method of porous red mud cement brick

Publications (1)

Publication Number Publication Date
CN103613405A true CN103613405A (en) 2014-03-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310615179.7A Pending CN103613405A (en) 2013-11-28 2013-11-28 Preparation method of porous red mud cement brick

Country Status (1)

Country Link
CN (1) CN103613405A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104045374A (en) * 2014-06-26 2014-09-17 刘海锋 Red mud porous material
CN104072189A (en) * 2014-07-08 2014-10-01 尹小林 Method for preparing light porous sintering material by red mud and plant residues

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104045374A (en) * 2014-06-26 2014-09-17 刘海锋 Red mud porous material
CN104072189A (en) * 2014-07-08 2014-10-01 尹小林 Method for preparing light porous sintering material by red mud and plant residues
CN104072189B (en) * 2014-07-08 2015-10-07 尹小林 The method of light porous agglomerated material is manufactured with red mud and plant residue

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Application publication date: 20140305