CN105271691B - Utilize the process of red mud production inorfil - Google Patents
Utilize the process of red mud production inorfil Download PDFInfo
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- CN105271691B CN105271691B CN201510668430.5A CN201510668430A CN105271691B CN 105271691 B CN105271691 B CN 105271691B CN 201510668430 A CN201510668430 A CN 201510668430A CN 105271691 B CN105271691 B CN 105271691B
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Abstract
The present invention is to utilize the process that red mud is major ingredient production inorfil, belong to red mud field of comprehensive utilization, curing agent, acidity coefficient conditioning agent are added in red mud, high-temperature fusion is carried out with coke, make full use of Si, Ca, Fe, Al, Na, Mg element resource in red mud, curing agent, acidity coefficient conditioning agent, inorfil is produced by major ingredient of red mud, red mud matches dosage up to more than 70%, effectively administer red mud pollution, the inorfil of production reaches rock wool rank, economic benefit, social enviroment protection remarkable benefit.Technique is simple, and production cost is low, and the large-scale production of red mud comprehensive utilization can be achieved.
Description
Technical field：
The invention belongs to red mud field of comprehensive utilization, particularly a kind of process that inorfil is produced using red mud.
Background technology
Red mud is bauxite caused residue after " Bayer process " or " sintering process " proposes aluminum oxide.The yield of red mud with
Production method and the grade of ore are relevant, and the slag of 1-1.7 tons will be produced by typically often producing 1 ton of aluminum oxide, and these slags are because of richness
It is in bronzing containing iron oxide, is referred to as red mud, belong to hazardous solid waste, raw material grade is lower, and red mud yield is bigger.
China is used as the big alumina producing state of Century Square, and the red mud discharged every year is up to tens million of tons.Substantial amounts of red mud can not be fully effective
Utilization, at present, the processing of the red mud of alumina producer is still stacked using building red mud reservoir dam, with the continuous increasing of discharge capacity
Add, not only occupy substantial amounts of farmland, and large effect is produced to environment.Utilization to red mud at present is typically to carry at iron
Based on reason, but runed from actual, red mud carries that iron cost is higher, carries the ash of the powder after iron and causes secondary pollution.Carry red after iron
Mud as materials for wall, make roadbed material and use, quality needs further to examine for a long time；As plastic material, crystallizing glass sheet material,
Red mud porcelain granule, ordinary cement use, and can only be additives, consumption is seldom；It is auxiliary material and flyash oxygen to have in the past using red mud
It is that raw material produces inorfil to change the higher quick lime of calcium content, industrial solid wastes carbide slag, phosphorus slag, magnesium slag, also can only be
Auxiliary material, the consumption of red mud is relatively fewer, the acidity coefficient of inorfil produced does not reach Standard.
The physical detection result of red mud shows：Red mud fusing point is 1200~1250 DEG C, the diffusate basicity pH value 10 of red mud
~12, granularity is 0.08~0.25 μm, relative density 2.7~2.9, apparent relative density 0.8~1.0.Its chemical composition is not with
Same production technology is different and slight different, and main mineral composition is cacoclasite (Ca2Al2SiO7), quartz
(SiO2), andradite (Ca3Fe2+3 (SiO4) 3) and calcium iiwarrite (Ca3TiFeSi3O12), main useful element composition are
Si, Al, Fe and Ca.
Such as, Chinese patent 200910048598.0, its method be in red mud add reactant carry out in and, add tune
Ingredients, glidant etc. carry out high temperature melting, and melt gets rid of into inorfil through supercentrifuge.Its technology needs to enter red mud acid adding
Row neutralizes, complex process, and production cost is high, makees nertralizer with acid, harmful gas can be produced during high-temperature fusion, to ring
Border has a certain impact.The inorfil produced simultaneously can only reach " mineral wool " technical indicator reluctantly, and can not reach country
Level " rock wool " technical standard, particularly " acidity coefficient " index.
The content of the invention
It is an object of the invention to provide using red mud production inorfil process, red mud dosage 70% with
On.
What the present invention was realized in：
Curing agent, acidity coefficient conditioning agent are added in red mud, high-temperature fusion is carried out with coke, forms fused solution；Fused solution
Top is inorfil liquation, can make inorfil；Fused solution bottom is iron liquation, can propose iron processing.The present invention uses two
Kind scheme：
A kind of process that inorfil is produced using red mud, its processing step are：(1) water is added by major ingredient of red mud
Mud, water is added to be uniformly mixed, strength suppresses balling-up bulk, naturally dry, is formed by curing ball lump material；(2) the ball block
Shape material carries out dispensing with basalt ore block, coke again, is well mixed, and forms semi-product material；(3) semi-product material
High-temperature fusion is carried out in melting furnace, forms fused solution；(4) fused solution top is inorfil liquation, and inorfil liquation passes through
Centrifuge gets rid of silk, after solidification, forms inorfil；Fused solution bottom is iron liquation, carries out proposing iron processing.
Another kind produces the process of inorfil using red mud, and its processing step is：(1) added by major ingredient of red mud
Cement, Cab-O-sil, add water to be uniformly mixed, and strength suppresses balling-up bulk, naturally dry, is formed by curing ball lump material；(2)
Ball lump material carries out dispensing with coke again, is well mixed, and forms semi-product material；(3) semi-product material is in melting furnace
Middle carry out high-temperature fusion, form fused solution；(4) fused solution top is inorfil liquation, and inorfil liquation is got rid of through centrifuge
Silk, after solidification, form inorfil；Fused solution bottom is iron liquation, carries out proposing iron processing.
The present invention use such scheme after, take full advantage of red mud, curing agent, Si, Ca in acidity coefficient conditioning agent,
Fe, Al, Na, Mg element resource, inorfil is produced by major ingredient of red mud, red mud matches dosage up to more than 70%, effectively controlled
Red mud pollution is managed, the inorfil of production reaches rock wool rank, economic benefit, social enviroment protection remarkable benefit.Technique is simple, production
Cost is low, realizes the large-scale production of red mud comprehensive utilization.
Embodiment
With reference to embodiment, the present invention will be further described.
The contaminative waste residue that red mud is discharged when being aluminium industry extraction aluminum oxide, testing result show：Red mud fusing point is
1200~1250 DEG C, the diffusate basicity pH value 10~12 of red mud, granularity is 0.08~0.25 μm, relative density 2.7~2.9,
Apparent relative density 0.8~1.0.Its chemical composition is different and slight different with different production technologies, main mineral composition
For cacoclasite (Ca2Al2SiO7), quartzy (SiO2), andradite (Ca3Fe2+3 (SiO4) 3) and calcium iiwarrite
(Ca3TiFeSi3O12), main useful element composition is Si, Al, Fe and Ca.Red mud essential element chemical composition such as following table：
Red mud essential element chemical composition such as following table
| Composition | SiO2 | Fe2O3 | Al2O3 | CaO | Na2O | MgO | K2O | TiO2 |
| Content | 20-32 | 10-17 | 5-7 | 42-46 | 2-2.3 | 1-1.5 | 0.2-0.4 | 2-2.2 |
It follows that red mud can as the raw material of production inorfil, and Na, Mg in red mud, K element have it is certain
Combustion-supporting effect, the dosage of coke in fusion process can be reduced.
Embodiment 1
Red mud is as major ingredient, and its water content control is 10~14% before dispensing, by 1：0.1~0.15 weight is than adding water
Mud, water is added to be uniformly mixed, mixed total moisture content control is 8~12%；The cement uses 325 or 425 silicate
Cement, used as curing agent.
Compound strength compacting balling-up is block, 4 × 6 × 8 ㎝ or so, naturally dry, is formed by curing ball lump material.Again will
Ball lump material, basalt ore block, coke press 3.5：0.1~0.2：1 weight is well mixed than carrying out dispensing, formed half into
Product material；㎝ of basalt ore block size 8 × 10 × 12 or so, SiO2 contents 45%, Al2O3 contents more than 14% are used as acidity
Coefficient adjustment agent uses；Coke size 6-10cm, calorific value>7000kca/k.
Semi-product material carries out high-temperature fusion in melting furnace, and temperature during high-temperature fusion is 1400~1550 DEG C, is formed
Fused solution.
Fused solution top is inorfil liquation, and inorfil liquation flow to centrifuge, silk processing is got rid of by centrifuge, to getting rid of
Go out the thread vaporific solidify liquid of fiber jet high pressure, form inorfil, 3~7um of diameter of inorfil, 10~20cm of length,
Inorfil can make to form series of products.The acidity coefficient of inorfil can reach " rock wool " level skill between 1.4~1.6
Art index.Fused solution bottom is iron liquation, carries out proposing iron processing, obtains iron as byproduct.
Cement is as curing agent, on the one hand, can further supplement silicon in red mud, the deficiency of aluminium content plays the work of additive
With；On the other hand can play a part of solidifying red mud.70~80% are can reach using red mud dosage.
Embodiment 2
Red mud is as major ingredient, and its water content control is 10~14% before dispensing, by 1：0.15：0.1~0.2 weight ratio adds
Enter cement, Cab-O-sil, add water to be uniformly mixed, mixed total moisture content control is 8~12%；The cement uses 325
Or 425 portland cements, used as curing agent；Cab-O-sil is in 325~500 mesh, SiO2 contents more than 95%, as acidity system
Number conditioning agent uses.
Compound strength compacting balling-up is block, 4 × 6 × 8 ㎝ or so, naturally dry, is formed by curing ball lump material.Again will
Ball lump material presses 3.5 with coke：1 weight is well mixed than dispensing, forms semi-product material；6~10cm of coke size,
Calorific value>7000kca/k.
Semi-product material carries out high-temperature fusion in melting furnace, and temperature during high-temperature fusion is 1550~17000 DEG C, needs height
Oxygen and aiding combustion is pressed, forms fused solution.
Fused solution top is inorfil liquation, and inorfil liquation flow to centrifuge, silk processing is got rid of by centrifuge, to getting rid of
Go out the thread vaporific solidify liquid of fiber jet high pressure, form inorfil, 3~7um of diameter of inorfil, 10~20cm of length,
Inorfil can make to form series of products, and the acidity coefficient of inorfil reaches " rock wool " level technology between 1.5~1.7
Index.Fused solution bottom is iron liquation, carries out proposing iron processing, obtains iron as byproduct.
Cement is as curing agent, on the one hand, can further supplement silicon in red mud, the deficiency of aluminium content plays the work of additive
With；On the other hand can play a part of solidifying red mud.
The deficiency that Cab-O-sil can supplement silicone content in red mud plays a part of additive, also acts as the acid of regulation inorfil
Spend coefficient acting；Another aspect Cab-O-sil can reduce the melting temperature in stove, reduce coke dosage, reduce production cost.Red mud
Dosage can reach 70~80%.
For the effect of the checking present invention, it is incorporated in several embodiments of Zhuan Li ﹙ CN102001823A ﹚ files announcement red
The higher industrial solid wastes of calcium oxide content are added in mud, such as：Flyash, carbide slag, phosphorus slag, magnesium slag etc., have been carried out as follows
Experiment：
First, main equipment common segment is tested：
Forklift, pulverizer, box feeding machine, ingredient conveying machine, Double shaft stirring batch mixer, ball press, batch mixing conveyer, punching
Its stove, cooling water system, blower fan, four be rolled off scheming, binding agent prepare with apply, collection cotton, swing paving felt, solidification post processing and bag
Dress, dedusting, burned waste gas and combustion air heat-exchange system, the electric and automatic control equipment of production line, hyperbaric oxygen combustion-supporting system etc.
(hyperbaric oxygen combustion-supporting system does not need in experiment one, experiment two, is only used in experiment three).General coke (granularity 6~
10cm, calorific value>7000kca/k).Following all experimentss are produced on same production line.
2nd, each raw material essential element chemical composition % contents：
Red mud, cement, basalt, Cab-O-sil, flyash, carbide slag, phosphorus slag, magnesium slag essential element chemical composition % contain
Amount.
Table 1：Component content table
3rd, experimental section
Experiment one：The higher industrial solid wastes of calcium oxide content are separately added into red mud (cost does not include), such as：Fine coal
(cost do not include) such as ash, carbide slag, dosage, magnesium slags, the quick lime of addition high calcium composition, which is done, to be solidified, and produces inorfil.
1st, dispensing pressure ball workshop section：
It is separately added into quick lime, flyash, carbide slag, phosphorus slag, the magnesium slag of high calcium composition respectively with red mud, solidifies balling-up block
Major ingredient.
Table 2：List of ingredients
2nd, produce as a trial：
Table 2 is " after the difference dispensing of sample number 1,2,3 ", according to red mud water content (water content control is 10~14% before dispensing)
Red mud is carried out plus water uniformly mixes, 8~12%, ball lump material is made in strong pressurizing for total moisture content control after mixing, from
So dry and be formed by curing major ingredient (㎝ of ball bulk major ingredient specification 4 × 6 × 8).With ball bulk major ingredient, coke (6~10cm of granularity, heat
Value>7000kca/k) dispensing, by 3.5：1 mixing, is sent to melting furnace by conveyer, high-temperature fusion, shape is carried out in melting furnace
Into fused solution.Fused solution top is inorfil solution, and inorfil solution flow to centrifuge, and (centrifuge is rolled off the heart using four
Machine, its rotating speed are 4800~6000 revs/min), silk processing is got rid of by centrifuge, thrown away high to filamentary fibers silk while filamentary fibers
Pressing vaporific injection solidify liquid, (solidify liquid is formed with water from uric acid resin adhesive liquid by certain weight than with, and the solidification aqueous solution is used
Amount is mixed by vaporific spray of certain weight high pressure again with inorfil), obtained inorfil (diameter 3 of inorfil~
7um, 7~20cm of length) collect.Form series of products.Fused solution bottom is iron liquation, carries out proposing iron processing, byproduct is iron.
Temperature during melting furnace high-temperature fusion is 1450~1550 DEG C (being not required to the oxygen and aiding combustion that adds high pressure).(given birth to by testing production in experiment
During production, select respectively in the table 2 of flyash, carbide slag, phosphorus slag, magnesium slag and calcium lime burden " ball of sample number 2 " block), obtained nothing
Machine fiber, byproduct iron.
Table 3：Product table
3rd, economic benefit situation：
With flyash, carbide slag, phosphorus slag, magnesium slag is added in red mud, with 11 tons of ball block major ingredients and 3 tons of coke, by " the sample of table 3
The ball block of Article Number 2 ", counted within about 3 hours with same production line continuous production：Produce inorfil result of the test and economic benefit
(total cost is：Manually, vehicle, the electricity charge, coke, natural gas, softening agent, equipment depreciation etc.).
Table 4：Economic benefit table
4th, brief summary：
By producing inorfil as a trial in quick lime, flyash, rock ballast, phosphorus slag, magnesium slag and red mud dispensing, final production goes out
Series of products acidity coefficient up to 1.1, by the inorfil produced as a trial out can only reach reluctantly " mineral wool " technical indicator,
Inorfil shot content is higher, raw material per ton can obtain most 300 yuan of gross profit, and economic benefit is poor, red mud highest dosage
50%, red mud is really accounted for major ingredient.
Experiment two：Curing agent (using ordinary cement), acidity coefficient conditioning agent (basalt ore deposit are added by primary raw material of red mud
Stone) dispensing production inorfil.
1st, dispensing pressure ball workshop section：
It is that major ingredient adds curing agent (using the cement of normal silicate 325 or 425), acidity coefficient conditioning agent (with profound with red mud
Military ㎝ of rock and ore block 8 × 10 × 12 or so, SiO2 contents 45%, Al2O3 contents more than 14%) dispensing production inorfil.With
Red mud is that major ingredient adds cement, first presses 1 with red mud (water content control is 10~14% before dispensing), cement：0.15 ratio is matched somebody with somebody
Material, red mud is carried out according to red mud water content after dispensing plus water uniformly mixes, total moisture content control is 8~12% after mixing, by force
Ball lump material is made in power pressurization, and naturally dry is formed by curing major ingredient (㎝ of ball bulk major ingredient specification 4 × 6 × 8).
Table 5：List of ingredients
2nd, produce as a trial：
With the ball block major ingredient of table 5 and acidity coefficient conditioning agent basalt ore block dispensing production inorfil.By reference table 6
" sample number 1,2,3 " with basalt ore block dispensing, is sent to melting furnace by conveyer respectively respectively, is carried out in melting furnace high
Temperature melting, forms fused solution.Fused solution top is inorfil solution, and inorfil solution flow to centrifuge, and (centrifuge uses
Four are rolled off scheming, and its rotating speed is 4800~6000 revs/min), silk processing is got rid of by centrifuge, to thread while throwing away filamentary fibers
(solidify liquid is formed the vaporific injection solidify liquid of filament high pressure with water from uric acid resin adhesive liquid by certain weight than with, solidification
Amount of aqueous solution used and inorfil mixs by certain weight high pressure vaporific injection again), obtained inorfil (inorfil it is straight
3~7um of footpath, 10~20cm of length) collect.Form series of products.Fused solution bottom is iron liquation, carries out carrying iron processing, by-product
Product are iron.Temperature during melting furnace high-temperature fusion is 1450~1550 DEG C (being not required to the oxygen and aiding combustion that adds high pressure).This method adds solidification
Agent cement：On the one hand, cement can play a part of curing agent, ball bulk major ingredient hardness is reached requirement；On the other hand, in cement
Aluminium, element silicon certain supplementary function is played to red mud.This method adds acidity coefficient conditioning agent basalt ore block：One side
Face, it can further supplement silicon in red mud, the deficiency of aluminium content plays a part of additive；On the other hand, can play Dui Chan Pin ﹙ without
Machine Xian Wei ﹚ acidity coefficient adjustment effect；Temperature when melting simultaneously is relatively low, can play a part of reducing production cost.
With 85% red mud add 15% cement generation ball block major ingredient, respectively with acidity coefficient conditioning agent (basalt ore block)
By 11 tons of 6 dispensing of table, inorfil result of the test is produced.
Table 6：Product table
3rd, economic benefit situation：
15% cement generation ball block major ingredient is added with 85% red mud, and basalt ore block distinguishes dispensing 11 by reference table 6
Ton, with 3 tons of coke production inorfils, add up to cost (artificial, electricity, coke and softening agent, equipment depreciation) and economic benefit.
Table 7：Economic benefit table
In the case where red mud disregards cost, mainly have vehicle, the electricity charge, cement, basalt ore block, coke, natural gas,
Softening agent, it is manually production cost, 1200 yuan/ton, 2800 yuan/ton of inorfil finished product valency.Ball block major ingredient and basalt ore
Block dispensing, raw material per ton can produce more than 0.75 ton inorfil and more than 0.1 ton bread iron.Disregard profit in byproduct bread iron
In the case of profit, raw material per ton can obtain more than about 1000 yuan of gross profit, (in actual production, from " sample in reference table 6
Numbers 2 " with pellet block and basalt ore block dosage).
4th, brief summary：
It is that the major ingredient addition cement of silicate 325 or 425 makees curing agent, basalt ore block is used as acidity coefficient to adjust by the use of red mud
Agent production inorfil is saved, with " 11 tons of 1, the 2,3 " dispensing of sample number, with 3 tons of coke production inorfils of table 6.Given birth to same
Producing line continuous production counts for about 3 hours：The series of products that final production goes out up to rock wool level index (acidity coefficient 1.4~
1.6), producing more than 8 tons of inorfil, 1.1 tons of output asperities iron clad, inorfil shot content≤5%, raw material per ton can
More than about 1000 yuan of gross profit is obtained, economic benefits, red mud dosage can reach 70~80%.
Experiment three：Curing agent (cement) is added using red mud as primary raw material, acidity coefficient conditioning agent (Cab-O-sil) produces nothing
Machine fiber.
1st, dispensing pressure ball workshop section：
It is that major ingredient adds curing agent (using the cement of normal silicate 325 or 425), acidity coefficient conditioning agent (with 325 with red mud
~500 mesh Cab-O-sils, SiO2 contents more than 95%) dispensing production inorfil.Red mud (before dispensing water content control 10~
14%), cement, Cab-O-sil press 1：0.15：0.1~0.2 ratio is uniformly mixed, according to red mud water content to red after dispensing
Mud is carried out plus water uniformly mixes, and 8~12%, ball lump material solidification nature is made in strong pressurizing for total moisture content control after mixing
Dry generation major ingredient.
With red mud, curing agent (cement), acidity coefficient conditioning agent (Cab-O-sil) production inorfil dispensing.
Table 8：List of ingredients
2nd, produce as a trial：
From table 8, " sample number 1,2,3 " is with pellet block production inorfil respectively.By list of ingredients 8, " sample number 1,2,3 " is each
11 tons of major ingredients, ball bulk major ingredient press 3.5 with coke respectively:1 mixing, is sent to melting furnace by conveyer respectively, is melting respectively
High-temperature fusion is carried out in stove, forms fused solution.Fused solution top is inorfil solution, and inorfil solution flow to centrifuge
(centrifuge is rolled off scheming using four, and its rotating speed is 4800~6000 revs/min), gets rid of silk processing by centrifuge, throws away filamentary fibers
While it is vaporific to filamentary fibers silk high pressure injection solidify liquid (solidify liquid is matched somebody with somebody by uric acid resin adhesive liquid with water by certain weight ratio
Conjunction is formed, and solidification amount of aqueous solution used is mixed by certain vaporific injection of weight high pressure again with inorfil), inorfil is made
(3~7um of diameter of inorfil, 10~20cm of length) is collected.Form series of products.Fused solution bottom is iron liquation, is carried out
Iron processing is proposed, byproduct is iron.Temperature during melting furnace high-temperature fusion is 1550~1700 DEG C (need to add high pressure oxygen and aiding combustion).We
Method adds curing agent cement：On the one hand, cement can play a part of curing agent, ball bulk major ingredient hardness is reached requirement；It is another
Aspect, aluminium, element silicon in cement play certain supplementary function to red mud.This method adds acidity coefficient conditioning agent silica
Powder：On the one hand, the deficiency that can further supplement silicone content in red mud plays a part of additive；On the other hand, can play to production
Acidity coefficient adjustment effects of the Pin ﹙ Wu machine Xian Wei ﹚；Another further aspect Cab-O-sil and without silica it is fast, primarily to reduce stove
Interior melting temperature, coke dosage is reduced, starting reduces production cost.(in actual production, from " sample number in list of ingredients 8
2 " match somebody with somebody pellet block).It is that major ingredient adds cement, Cab-O-sil dispensing production inorfil with red mud, red mud dosage can reach 70~
80%.The series of products acidity coefficient that final production goes out is 1.5~1.7.
It is that major ingredient adds 11 tons of curing agent (cement), acidity coefficient conditioning agent (Cab-O-sil) dispensing inorganic fibres of production with red mud
Test products result.
Table 9：Product table
3rd, economic benefit situation：
It is that major ingredient adds curing agent (cement), acidity coefficient conditioning agent (Cab-O-sil) dispensing balling-up bulk major ingredient with red mud,
Ball bulk major ingredient, coke press 3.5：1 mixing, with 11 tons of ball block major ingredients and 3.2 tons of coke production inorfils, disregards into red mud
In the case of this, add up to cost：Vehicle, cement, Cab-O-sil, artificial, electricity, coke, natural gas, softening agent, equipment depreciation) and warp
Ji benefit.
Table 10：Economic benefit table
4th, brief summary：
It is that major ingredient adds cement, Cab-O-sil dispensing production inorfil with red mud, respectively from the " sample number 1,2,3 " of table 8
Inorfil is produced with pellet block.It is continuous with same production line with 11 tons of ball block major ingredients and 3.2 tons of coke production inorfils
Production counts for about 3 hours, by verifying the effect of the present invention, can produce 8.2 tons of inorfil, 1 ton of output asperities iron clad.It is inorganic
The series of products that fiber shot content≤5%, final production go out are up to rock wool level index product (acidity coefficient is 1.6), per ton
Raw material can obtain more than about 1200 yuan of gross profit, and economic benefits, red mud dosage can reach 70~80%.
4th, compared with advance of the present invention：
With quick lime, flyash, rock ballast, phosphorus slag, magnesium slag respectively with red mud dispensing and with red mud to be that major ingredient adds solid respectively
Dispensing, difference strength compacting balling-up bulk major ingredient try life respectively for agent (cement), acidity coefficient conditioning agent (basalt, Cab-O-sil)
Inorfil is produced, by raw material of 11 tons of ball block (or dispensing) major ingredients and about 3 tons of coke are fuel, are continuously given birth to same production line
Production about 3 hours, the inorfil statistics of production, add up to cost (vehicle, artificial, electricity, coke, natural gas, softening agent, equipment folding
It is old etc.), product quality, yield and economic benefits comparison.
Table 11：Overall economic efficiency comparison sheet
Compared by overall economic efficiency comparison sheet 11, several implementations that Zhuan Li ﹙ CN102001823A ﹚ files are announced
Example, by being tested, experiment two of the invention, three results of experiment are than several realities that Zhuan Li ﹙ CN102001823A ﹚ files are announced
Apply example test a result, red mud dosage, fiber shot content, go out cotton rate, fiber acidity coefficient, by-product volume, product appearance,
Product volume, product quality, production unit cost, product cost, product profit etc. have obvious advanced.Based on red mud
Want raw material to produce inorfil, by cost accounting, there is preferable economy.With this experiment two, experiment three methods production nothing
The consumption of machine fiber red mud is bigger, and technical difficulty is easier to realize, can thoroughly reach the purpose administered to red mud.
In summary, it is that major ingredient adds curing agent, acidity coefficient conditioning agent produces inorfil with red mud, technique is relatively simple
It is single, Si, Ca, Fe, Al, Na, Mg element resource in red mud, curing agent, acidity coefficient conditioning agent are taken full advantage of, does not produce tail
Slag, leftover bits in production process are repeatable to be utilized, and does not have secondary pollution to environment, red mud is administered thorough, is realized red
The comprehensive utilization of mud, turns waste into wealth.Production cost is low, and large-scale industrial production can be achieved, and is thoroughly administering red mud pollution
Meanwhile the inorfil series of products for meeting national standard of high added value can be produced, there is fairly obvious economic benefit, society
Can environmental benefit.This project meets national industrial policies, meets national requirements for environmental protection.
Claims (3)
1. using the process of red mud production inorfil, its processing step is：
(1) cement is added by major ingredient of red mud, adds water to be uniformly mixed, strength suppresses balling-up bulk, naturally dry, solidifies shape
Balling-up lump material；
(2) the ball lump material carries out dispensing with basalt ore block, coke again, is well mixed, and forms semi-product material；
(3) semi-product material carries out high-temperature fusion in melting furnace, forms fused solution；
(4) fused solution top is inorfil liquation, and inorfil liquation gets rid of silk through centrifuge, after solidification, forms inorfil；
Fused solution bottom is iron liquation, carries out proposing iron processing；
Water content control is 10~14% before the red mud dispensing；Red mud presses 1 with cement:0.1~0.15 weight is mixed than mixing
Total moisture content after conjunction is controlled 8~12%；The cement uses as curing agent；
The ball lump material, basalt ore block, coke of semi-product material are mixed into by 3.5：0.1~0.2：1 weight ratio is matched somebody with somebody
Material；The basalt ore block uses as acidity coefficient conditioning agent.
2. the process according to claim 1 that inorfil is produced using red mud, it is characterised in that：The cement is adopted
With 325 or 425 portland cements, basalt ore block specifications are 8 × 10 × 12 ㎝ or so.
3. the process according to claim 2 that inorfil is produced using red mud, it is characterised in that：During high-temperature fusion
Temperature be 1400~1550 DEG C.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710949843.XA CN107555777B (en) | 2015-10-13 | 2015-10-13 | Utilize the process of red mud production inorfil |
| CN201510668430.5A CN105271691B (en) | 2015-10-13 | 2015-10-13 | Utilize the process of red mud production inorfil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510668430.5A CN105271691B (en) | 2015-10-13 | 2015-10-13 | Utilize the process of red mud production inorfil |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710949843.XA Division CN107555777B (en) | 2015-10-13 | 2015-10-13 | Utilize the process of red mud production inorfil |
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| Publication Number | Publication Date |
|---|---|
| CN105271691A CN105271691A (en) | 2016-01-27 |
| CN105271691B true CN105271691B (en) | 2017-12-29 |
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| CN106277807A (en) * | 2016-08-16 | 2017-01-04 | 崔师斌 | Rock wool heat-preservation material and preparation method thereof |
| CN106336200B (en) * | 2016-08-21 | 2019-06-11 | 长兴盟友耐火材料有限公司 | A kind of inorfil toughening refractory material and its preparation process |
| CN106698916A (en) * | 2016-12-19 | 2017-05-24 | 江苏省冶金设计院有限公司 | Method for preparing mineral fiber through red mud slag |
| CN106673453A (en) * | 2016-12-19 | 2017-05-17 | 江苏省冶金设计院有限公司 | Utilization method of red mud slag |
| CN106904820A (en) * | 2017-03-15 | 2017-06-30 | 江苏东方船研环保节能材料有限公司 | The reuse method of solid waste in rock wool production |
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| CN109956672A (en) * | 2019-04-24 | 2019-07-02 | 济南大学 | A kind of preparation method for the trade waste alkali-resistant glass fibre that intermediate oxide is modified |
| CN109970349A (en) * | 2019-04-24 | 2019-07-05 | 济南大学 | A kind of method that the trade waste that ferriferous oxide is modified prepares alkali-resistant glass fibre |
| CN109942200A (en) * | 2019-04-24 | 2019-06-28 | 济南大学 | A kind of preparation method of changed red mud alkali-resistant glass fibre |
| CN110143761A (en) * | 2019-06-04 | 2019-08-20 | 程铃釜 | A kind of high-performance fiber and its preparation process containing charcoal |
| CN110330232A (en) * | 2019-06-19 | 2019-10-15 | 张勇 | A kind of process using red mud production inorfil |
| CN114174235B (en) * | 2019-07-25 | 2023-08-29 | 霓佳斯株式会社 | Inorganic fiber, inorganic fiber product, method for producing inorganic fiber product, composition for producing inorganic fiber, and method for producing inorganic fiber |
| CN114573237B (en) * | 2022-03-21 | 2024-02-23 | 王进 | Comprehensive utilization method of red mud |
| CN114873923B (en) * | 2022-03-28 | 2023-08-22 | 中铝山东有限公司 | Red mud-based heat insulation material and preparation method thereof |
| CN114804611B (en) * | 2022-05-27 | 2023-12-12 | 王进 | Method for producing fireproof black cotton by using red mud |
| CN115196881A (en) * | 2022-09-19 | 2022-10-18 | 大城县洪海保温材料有限公司 | High-strength hydrophobic rock wool material and preparation method thereof |
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| CN105271691A (en) | 2016-01-27 |
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