CN104230208B - Nickel-copper smelting acid waste water is administered with acid-resistant anti-corrosion carbon brick and preparation method thereof - Google Patents
Nickel-copper smelting acid waste water is administered with acid-resistant anti-corrosion carbon brick and preparation method thereof Download PDFInfo
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- CN104230208B CN104230208B CN201410471239.7A CN201410471239A CN104230208B CN 104230208 B CN104230208 B CN 104230208B CN 201410471239 A CN201410471239 A CN 201410471239A CN 104230208 B CN104230208 B CN 104230208B
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention provides a kind of nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick, its raw material comprises the anticorrosion carbon brick of regeneration that mass percent is 10-30%, the coke of 50-80%, the hard coal of 5-15%, the hard pitch of 0-5% and 5-15% graphite, further comprises the additional bonding agent of above-mentioned raw materials total mass 5-20%; The anticorrosion carbon brick of described regeneration refer to C content >=98%, ash content≤2% through broken, be sized to that particle diameter is not more than 2mm scrap anticorrosion carbon brick.Acid-resistant anti-corrosion carbon of the present invention not only Heat stability is good, physical strength is high, acidproof, and cost is also very low simultaneously, has very strong practicality.
Description
Technical field
The invention belongs to impregnating material field, specifically refer to a kind of nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick and preparation method thereof.
Background technology
Anticorrosion carbon brick has Heat stability is good, advantage that physical strength is high, and under low temperature and high-temperature reductibility atmospheric condition, all has good inertia, not with acidic substance generation chemical reaction (except oxidizing acid).Therefore Blast Furnace Bottom, the pickling tank of electroplating industry, plating tank is widely used in, the dissolving tank of paper industry, the reactive tank of chemical industry, holding tank, the inside lining anti-corrosive materials such as the autoclave of petrochemical industry.
Traditional anticorrosion carbon brick is with refinery coke, pitch coke, hard coal, coke and graphite for raw material, and with pitch, tar and carbolineum etc. for bonding agent, after extrusion molding, sintering forms (to bury carbon, 1300 ~ 1450 DEG C × 20h) under reducing atmosphere.Due to comparatively large at sintering process Raw volatile matter, not only pollute environment, and cause gas product porosity higher (20 ~ 25%), also need to reduce pore by the method for solvent impregnated resin, improve acid resistance.Preparation method's complex process of this anticorrosion carbon brick, manufacturing cost is high, and the production cycle is long, and production environment is poor, acid resistance poor effect.
Along with process modification, occur not burning type acid-resistant anti-corrosion carbon brick, main raw material is oil calcined coke, electro-forge cleaned coal, the carbon raw of the contour carbonaceous calcining of pitch calcined coke, adding graphite, carbon black, take liquid phenolic resin as bonding agent, after the mixing of mixed grind equipment, shaping on pressing machine, then obtain finished product after drying kiln (200 ± 10 DEG C × 24h) drying.The method products obtained therefrom ash content little (≤1wt%), can use in high temperature (≤200 DEG C) strongly-acid (except oxidizing acid) environment, quality is better than traditional anticorrosion carbon brick, but its manufacturing cost is still higher, belongs to top grade and does not burn acid-resistant anti-corrosion carbon brick.
In nickel-copper smelting acid waste water governance process, the environment for use of anticorrosion carbon brick is: slightly acidic (H2SO4≤10%), low temperature (temperature≤60 DEG C).What use cost was higher do not burn type acid-resistant anti-corrosion carbon brick can cause significant wastage.
Summary of the invention
The object of the invention is to provide a kind of nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to the deficiencies in the prior art, this acid-resistant anti-corrosion carbon not only Heat stability is good, physical strength is high, acidproof, and cost is also very low simultaneously.
Technical scheme of the present invention is as follows: a kind of nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick, its raw material comprises the anticorrosion carbon brick of regeneration that mass percent is 10-30%, the coke of 50-80%, the hard coal of 5-15%, the hard pitch of 0-5% and 5-15% graphite, further comprises the additional bonding agent of above-mentioned raw materials total mass 5-20%; The anticorrosion carbon brick of described regeneration refer to C content >=98%, ash content≤2% through broken, be sized to that particle diameter is not more than 2mm scrap anticorrosion carbon brick.
Preferably, described additional bonding agent refers to one or both in liquid phenolic resin or liquid coumarone indene resin.
Preferred, solid content >=80% of described liquid phenolic resin, remaining carbon >=30%.
Preferred, solid content >=80% of described liquid coumarone indene resin, remaining carbon >=30%.
Preferably, C content >=80% of described coke, ash content≤10%, and particle diameter is not more than 2mm and is not less than 0.088mm.
Preferably, described anthracitic C content >=85%, ash content≤8%, and particle diameter is not more than 2mm.
Preferably, softening temperature >=140 DEG C of described hard pitch, granularity is 100 orders.
Preferably, C content >=90% of described graphite, ash content≤3%, granularity is 100 orders.
Another object of the present invention is to provide the preparation method of above-mentioned nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick.
A kind of method preparing above-mentioned nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick, its step comprises: be the anticorrosion carbon brick of regeneration of 10-30%, the coke of 50-80%, the hard coal of 5-15%, the hard pitch of 0-5% and 5-15% graphite by mass percent, and the additional bonding agent mixing of above-mentioned raw materials total mass 5-20% to carry out pressure brick after 10-30 minute shaping, then thermal treatment 12-36 hour at 150-250 DEG C, namely obtains described nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick.
The present invention take full advantage of cause not directly using due to off size suitable or performance scrap anticorrosion carbon brick, not only save accumulation inventory cost, and high cost produce do not burn the anticorrosion carbon brick substandard product of type and also can be reused.Meanwhile, the present invention adopts the raw material of the contour C content of coke, hard coal, high ash content, low cost to replace oil calcined coke, the contour C content of pitch calcined coke, low ash content, high cost raw material, because this reducing manufacturing cost.Heat stability is good, the physical strength of acid-resistant anti-corrosion carbon of the present invention are high, because in nickel-copper smelting acid waste water governance process, the environment for use of anticorrosion carbon brick is: slightly acidic (H
2sO
4≤ 10%), low temperature (temperature≤60 DEG C), acidproof and resistance toheat also can reach requirement, has very strong practicality.
Embodiment
The present invention is further illustrated below by way of specific embodiment:
Embodiment 1
Following raw materials by weight (wt%) ratio is prepared burden:
Regenerate anticorrosion carbon brick, particle diameter is not more than 2mm, add-on 10wt%;
Coke, particle diameter is not more than 2mm, add-on 60wt%;
Hard coal, particle diameter is not more than 2mm, add-on 10wt%;
Hard pitch, granularity is 100 orders, add-on 5wt%;
Graphite, granularity is 100 orders, add-on 15wt%;
Additional bonding agent liquid phenolic resin; Add-on is the 20wt% of above-mentioned raw materials total amount.
Put into mixing roll mixing 10 minutes after being prepared by above raw material, then put into brick pressing machine shaping, through 150 DEG C of thermal treatments 36 hours, finally choose, check, pack, put in storage, namely obtain acid-resistant anti-corrosion carbon brick 1.
Embodiment 2
Prepare burden in following raw materials by weight (wt%) ratio:
Regenerate anticorrosion carbon brick, particle diameter is not more than 2mm, add-on 30wt%;
Coke, particle diameter is not more than 2mm, add-on 30wt%;
Coke, particle diameter is not less than 0.088mm, add-on 20wt%;
Hard coal, particle diameter is not more than 2mm, add-on 15wt%;
Graphite, granularity is 100 orders, add-on 5wt%;
The liquid coumarone indene resin of additional bonding agent; Add-on is the 15wt% of above-mentioned raw materials total amount.
Put into mixing roll mixing 20 minutes after being prepared by above raw material, then put into brick pressing machine shaping, through 250 DEG C of thermal treatments 12 hours, finally choose, check, pack, put in storage, namely obtain acid-resistant anti-corrosion carbon brick 2.
Embodiment 3
Following raw materials by weight (wt%) ratio is prepared burden:
Regenerate anticorrosion carbon brick, particle diameter is not more than 2mm, add-on 10wt%;
Coke, particle diameter is not more than 2mm, add-on 50wt%;
Coke, particle diameter is not less than 0.088mm, add-on 30wt%;
Hard coal, particle diameter is not more than 2mm, add-on 5wt%;
Graphite, granularity is 100 orders, add-on 5wt%;
The liquid coumarone indene resin of additional bonding agent, add-on is the 10wt% of above-mentioned raw materials total amount;
Additional bonding agent liquid phenolic resin, add-on is the 5wt% of above-mentioned raw materials total amount.
Put into mixing roll mixing 30 minutes after being prepared by above raw material, then put into brick pressing machine shaping, through 200 DEG C of thermal treatments 24 hours, finally choose, check, pack, put in storage, namely obtain acid-resistant anti-corrosion carbon brick 3.
Embodiment 4
Following raw materials by weight (wt%) ratio is prepared burden:
Regenerate anticorrosion carbon brick, particle diameter is not more than 2mm, add-on 15wt%;
Coke, particle diameter is not more than 2mm, add-on 60wt%;
Hard coal, particle diameter is not more than 2mm, add-on 10wt%;
Hard pitch, granularity is 100 orders, add-on 2wt%;
Graphite, granularity is 100 orders, add-on 13wt%;
Additional bonding agent liquid phenolic resin; Add-on is the 5wt% of above-mentioned raw materials total amount.
Put into mixing roll mixing 10 minutes after being prepared by above raw material, then put into brick pressing machine shaping, through 150 DEG C of thermal treatments 36 hours, finally choose, check, pack, put in storage, namely obtain acid-resistant anti-corrosion carbon brick 4.
By traditional anticorrosion carbon brick, do not burn the anticorrosion carbon brick of type and above acid-resistant anti-corrosion carbon brick 1-3 carries out performance comparison, its result is as shown in table 1:
The traditional anticorrosion carbon brick of table 1, do not burn the anticorrosion carbon brick of type and acid-resistant anti-corrosion carbon brick 1-3 performance comparison
As can be seen from Table 1, poor, the withstand voltage folding strength of acid resistance of traditional anticorrosion carbon brick is low, and cost is high; Although do not burn good, the withstand voltage folding strength of type anticorrosion carbon brick acid resistance, cost is also high; And acid-resistant anti-corrosion carbon brick 1-3 of the present invention not only good, the withstand voltage folding strength of acid resistance, and cost is also low, goes for the environment that nickel-copper smelting acid waste water is administered, and has very strong practicality.
The anticorrosion carbon brick of described regeneration be refer to C content >=98%, ash content≤2% through broken, be sized to that particle diameter is not more than 2mm scrap anticorrosion carbon brick, described in scrap anticorrosion carbon brick be size or performance inconsistency lattice do not burn the anticorrosion carbon brick of type.The acceptable performance not burning the anticorrosion carbon brick of type is as shown in table 2, and qualified size index is as shown in table 3:
| C，％ | Ash content, % | Compressive strength (Mpa) | Apparent porosity (%) | Volume density (g/cm 3) | Folding strength (Mpa) |
| ≥97.5 | ≤2.5 | ≥60 | ≤12 | ≥1.65 | ≥15 |
Table 2 does not burn the acceptable performance index of the anticorrosion carbon brick of type
Table 3 does not burn the qualified size index of the anticorrosion carbon brick of type.
Claims (8)
1. a nickel-copper smelting acid waste water is administered and is used acid-resistant anti-corrosion carbon brick, its raw material comprises the anticorrosion carbon brick of regeneration that mass percent is 10-30%, the coke of 50-80%, the hard coal of 5-15%, the hard pitch of 0-5% and 5-15% graphite, further comprises the additional bonding agent of above-mentioned raw materials total mass 5-20%; The anticorrosion carbon brick of described regeneration refer to C content >=98%, ash content≤2% through broken, be sized to that particle diameter is not more than 2mm scrap anticorrosion carbon brick; Described additional bonding agent refer in liquid phenolic resin or liquid coumarone indene resin one or both.
2. nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to claim 1, is characterized in that: solid content >=80% of described liquid phenolic resin, remaining carbon >=30%.
3. nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to claim 1, is characterized in that: solid content >=80% of described liquid coumarone indene resin, remaining carbon >=30%.
4. nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to claim 1, it is characterized in that: C content >=80% of described coke, ash content≤10%, and particle diameter is not more than 2mm and is not less than 0.088mm.
5. nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to claim 1, it is characterized in that: described anthracitic C content >=85%, ash content≤8%, and particle diameter is not more than 2mm.
6. nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to claim 1, it is characterized in that: softening temperature >=140 DEG C of described hard pitch, granularity is 100 orders.
7. nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick according to claim 1, it is characterized in that: C content >=90% of described graphite, ash content≤3%, granularity is 100 orders.
8. prepare the method for nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick described in claim 1 for one kind, its step comprises: be the anticorrosion carbon brick of regeneration of 10-30%, the coke of 50-80%, the hard coal of 5-15%, the hard pitch of 0-5% and 5-15% graphite by mass percent, and the additional bonding agent mixing of above-mentioned raw materials total mass 5-20% to carry out pressure brick after 10-30 minute shaping, then thermal treatment 12-36 hour at 150-250 DEG C, namely obtains described nickel-copper smelting acid waste water improvement acid-resistant anti-corrosion carbon brick; Described additional bonding agent refer in liquid phenolic resin or liquid coumarone indene resin one or both.
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| CN201410471239.7A CN104230208B (en) | 2014-09-16 | 2014-09-16 | Nickel-copper smelting acid waste water is administered with acid-resistant anti-corrosion carbon brick and preparation method thereof |
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| CN104230208B true CN104230208B (en) | 2015-12-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041929A (en) * | 1988-09-09 | 1990-05-09 | 河南省巩县节能耐火材料厂 | The electric charcoal magnesia brick of organic bond and making thereof |
| EP1249434A1 (en) * | 1999-02-26 | 2002-10-16 | UCAR Carbon Company Inc. | High temperature carbonaceous cement |
| CN101333088A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing Al2O3-MgO-C Bricks by using waste Al2O3-MgO-C Bricks as main raw material |
| CN101333089A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
-
2014
- 2014-09-16 CN CN201410471239.7A patent/CN104230208B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041929A (en) * | 1988-09-09 | 1990-05-09 | 河南省巩县节能耐火材料厂 | The electric charcoal magnesia brick of organic bond and making thereof |
| EP1249434A1 (en) * | 1999-02-26 | 2002-10-16 | UCAR Carbon Company Inc. | High temperature carbonaceous cement |
| CN101333088A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing Al2O3-MgO-C Bricks by using waste Al2O3-MgO-C Bricks as main raw material |
| CN101333089A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
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Effective date of registration: 20180323 Address after: No. 1, Qingshan District, Hubei Province, Wuhan City, Hubei Patentee after: Wuhan Iron & Steel (Group) Corp. Address before: 15 Wuchang, Wuhan Friendship Avenue, No. 999, block A, layer (Wuhan Iron and steel science and technology innovation department), No. 430080, Patentee before: Wuhan Iron & Steel (Group) Corp. |