CN105859210A - Baking-free bricks with high nickel slag proportion and preparation method therefor - Google Patents
Baking-free bricks with high nickel slag proportion and preparation method therefor Download PDFInfo
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- CN105859210A CN105859210A CN201610188310.XA CN201610188310A CN105859210A CN 105859210 A CN105859210 A CN 105859210A CN 201610188310 A CN201610188310 A CN 201610188310A CN 105859210 A CN105859210 A CN 105859210A
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- Prior art keywords
- slag
- nickel slag
- nickel
- particle diameter
- bake
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses baking-free bricks with high nickel slag proportion. The baking-free bricks are mainly prepared from the following raw materials in percentage by mass: 40% to 70% of crude nickel slag, 20% to 40% of nickel slag powder, 4% to 12% of cement and 6% to 14% of water, wherein the sum of mass percents of the raw materials is 100%. According to the baking-free bricks, the gradation composition and chemical ingredients of the nickel slag are optimized according to physico-chemical characteristics of the nickel slag, the difficulty of pulverizing of the nickel slag is lowered by using the synergistic effect of co-pulverizing of steel slag and the nickel slag, and the activity of powder is improved, so that the abandoned nickel slag can be effectively utilized in a resource-converting manner. The invention further discloses a preparation method for the baking-free bricks with high nickel slag proportion. The preparation method is reliable in process and low in cost, and the nickel slag can be utilized to the maximum.
Description
Technical field
The invention belongs to baking-free brick technology field, be specifically related to a kind of large dosage nickel slag bake-free brick and preparation side thereof
Method.
Background technology
Nickel slag is the solid slag that smelting ferronickel alloy produces, and dilval is primarily used to stainless steel and produces, because of
This nickel slag is also referred to as stainless steel slag or ferronickel slag, often produces 1t nickel and can produce 6～16t nickel slags, existing nickel slag
Use stores up process more, and floor space is big, also can cause certain environmental pollution.
The main component of nickel slag is CaO, MgO, Al2O3、SiO2And Fe2O3, wherein CaO, MgO,
Al2O3Content is relatively low, SiO2And Fe2O3Content is higher, overall in acidity.Melting waste slag such as grain with other
Change blast-furnace cinder, slag (both at alkaline scrap material) is compared, and its characteristic feature is exactly that grindability is poor, activity
Low, thus the recycling approach of nickel slag is few, cost of disposal is high, and substantial amounts of nickel slag can only use stores up process,
The most how to improve grindability and the activity of nickel slag, expand its recycling approach, be one urgently to be resolved hurrily
Problem.
Summary of the invention
It is an object of the invention to provide a kind of large dosage nickel slag bake-free brick, according to the physicochemical characteristic of nickel slag self,
Optimize nickel slag gradation composition and chemical composition, utilize slag and nickel slag grinding cooperative effect altogether to reduce nickel slag
Grinding difficulty, and improve nickel slag activity, can effectively improve the comprehensive utilization of resources efficiency of nickel slag.
The present invention also aims to provide the preparation method of above-mentioned large dosage nickel slag bake-free brick, this preparation method work
Skill is reliable, low cost, can use nickel slag with large dosage.
First purpose of the present invention is achieved through the following technical solutions: a kind of large dosage nickel slag is unburned
Brick, is mainly made up of the raw material of following weight/mass percentage composition:
The weight/mass percentage composition sum of above-mentioned raw materials is 100%.
Wherein thick nickel slag is coarse aggregate, and nickel ground-slag is fine aggregate, and cement is Binder Materials.
In each raw material of above-mentioned large dosage nickel slag bake-free brick:
Described thick nickel slag is that particle diameter is more than the big particle diameter nickel slag distinguishing particle diameter, and described nickel ground-slag is that particle diameter is less than
Distinguish the mixture of thin nickel slag and slag of the particle diameter product under the effect of grinding aid after common grinding, described
Distinguish particle diameter to determine according to accumulative tailing over, using accumulative tail over be 40～70% particle diameter as differentiation particle diameter.
Concrete, distinguish particle diameter, thick nickel slag and nickel ground-slag and be prepared by the following: first nickel slag is sieved
Divide classification, use standard bushing screen that the grating of nickel slag is analyzed and determines differentiation particle diameter, distinguish particle diameter according to tired
Meter tails over and determines, accumulative tail over be 40～70% particle diameter as distinguishing particle diameter, distinguish particle diameter and divide as nickel ballast screen
Foundation, more than distinguish particle diameter nickel ballast screen divide after be used as non-burning brick thick nickel slag (coarse aggregate), less than distinguish grain
Footpath thin nickel slag adds certain slag and is used as nickel ground-slag (fine aggregate) after common grinding.
In the preparation process of this nickel ground-slag:
Thin nickel slag of the present invention is preferably 1:0.2～1 with the proportion by weight of slag.
The consumption of grinding aid of the present invention preferably comprises the 0.05～0.3% of thin nickel slag and slag gross mass.
Grinding aid of the present invention is preferably conventional cement grinding aid, as triethanolamine, triisopropanolamine,
Ethylene glycol, propane diols etc..
The particle diameter of slag of the present invention is preferably 0.5～2.0mm.
The time of present invention grinding altogether is preferably 20～60min, and the discharge fineness of the product after grinding is preferably altogether
80 μm tail over less than 10%.
The particle diameter of nickel slag of the present invention is preferably 0～10mm.
Second object of the present invention is achieved through the following technical solutions: above-mentioned large dosage nickel slag bake-free brick
Preparation method, containing following steps: take each raw material thick nickel slag, nickel ground-slag and cement by above-mentioned magnitude relation and carry out
Dispensing, is added after water mixes again by above-mentioned magnitude relation after mixing and suppresses, i.e. prepare large dosage nickel slag and exempt from
Baking bricks adobe, described adobe i.e. prepares large dosage nickel slag bake-free brick through natural curing or steam curing.
Wherein natural curing is preferably watering maintenance in 25～30 days, under the conditions of steam curing is preferably 75～100 DEG C
Maintenance 24～48h.
The invention have the advantages that
(1) present invention considers the grating characteristic distributions of nickel slag, and nickel slag is divided into thick nickel slag and thin nickel slag two big
Class, is used as thick nickel slag non-burning brick coarse aggregate, is used as non-burning brick fine aggregate, can improve after the reprocessing of thin nickel slag
The volume of nickel slag, the nickel slag for comprehensive volume (thick nickel slag+thin nickel slag) of the present invention can reach more than 60%
(2) present invention considers the grindability of nickel slag and the problem of poor activity, adds slag common with thin nickel slag
Grinding, can utilize the cooperative effect of common grinding to reduce grinding difficulty, moreover it is possible to improve the activity of nickel ground-slag, improve
The performance of nickel slag bake-free brick.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Embodiment 1
The large dosage nickel slag bake-free brick that the present embodiment provides, is made up of the raw material of following weight/mass percentage composition:
The weight/mass percentage composition sum of above-mentioned raw materials is 100%.
Wherein distinguish particle diameter, thick nickel slag is prepared by the following: first nickel slag carries out sieve classification, nickel slag
Particle diameter be 0～9mm, use standard bushing screen the grating of nickel slag is analyzed and determines differentiation particle diameter, distinguish
Particle diameter determines according to accumulative tailing over, accumulative tail over be 40～70% particle diameter as distinguishing particle diameter, through testing this reality
The differentiation particle diameter executing example is 1.18mm, and the thick nickel slag ratio example more than 1.18mm is 63.2%, less than 1.18mm
The thin nickel slag proportion of particle diameter is 36.8%.
Nickel ground-slag is prepared by the following: by the slag of thin nickel slag and particle diameter 0.6～1.5mm according to 1:0.8's
Proportion by weight carries out intergrinding, and the triethanolamine adding 0.06% (accounting for thin nickel slag and slag gross mass) helps
Grinding agent, grinding time is 22min, and the fineness of the nickel ground-slag finally obtained is that 80 μm tail over 5.9%.
Cement is P.O 32.5.
As it is shown in figure 1, the preparation method of this large dosage nickel slag bake-free brick is as follows: take each former by above-mentioned magnitude relation
Expect that thick nickel slag, nickel ground-slag and cement carry out dispensing, add water by above-mentioned magnitude relation after mixing and again mix laggard
Row compacting, i.e. prepares large dosage nickel slag bake-free brick adobe, and described adobe is the most prepared through natural curing or steam curing
Large dosage nickel slag bake-free brick.
Above-mentioned adobe natural curing 28 days, the intensity of the large dosage nickel slag bake-free brick prepared is 17.4Mpa, symbol
Close the regulation that in JC/T 422-2007 " non-sintered rubbish tailing-bricks ", MU 15 rank of regulation is non-burning brick.
Embodiment 2
The large dosage nickel slag bake-free brick that the present embodiment provides, is made up of the raw material of following weight/mass percentage composition:
The weight/mass percentage composition sum of above-mentioned raw materials is 100%.
Wherein distinguish particle diameter, thick nickel slag is prepared by the following: first nickel slag carries out sieve classification, nickel slag
Particle diameter be 0～8.5mm, use standard bushing screen the grating of nickel slag is analyzed and determines differentiation particle diameter, distinguish
Particle diameter determines according to accumulative tailing over, accumulative tail over be 40～70% particle diameter as distinguishing particle diameter, through testing this reality
The differentiation particle diameter executing example is 2.36mm, and the thick nickel slag ratio example more than 2.36mm is 53.2%, less than 2.36mm
The thin nickel slag proportion of particle diameter is 46.8%.
Nickel ground-slag is prepared by the following: by the slag of thin nickel slag and particle diameter 1.0～2.0mm according to 1:0.5's
Proportion by weight carries out intergrinding, and the triethanolamine adding 0.1% (accounting for thin nickel slag and slag gross mass) helps
Grinding agent, grinding time is 25min, and the fineness of the nickel ground-slag finally obtained is that 80 μm tail over 7.4%.
Cement is P.O 42.5.
The preparation method of this large dosage nickel slag bake-free brick is as follows: take each raw material thick nickel slag, nickel by above-mentioned magnitude relation
Ground-slag and cement carry out dispensing, add after water mixes again by above-mentioned magnitude relation and suppress, i.e. make after mixing
Obtaining large dosage nickel slag bake-free brick adobe, described adobe i.e. prepares large dosage nickel slag through natural curing or steam curing and exempts from
Bake bricks.
Above-mentioned adobe is in 80 DEG C of steam curing 36h, and the intensity of prepared large dosage nickel slag bake-free brick is 26.2Mpa,
Meet the regulation that in JC/T 422-2007 " non-sintered rubbish tailing-bricks ", MU 20 rank of regulation is non-burning brick.
Embodiment 3
The large dosage nickel slag bake-free brick that the present embodiment provides, is made up of the raw material of following weight/mass percentage composition:
The weight/mass percentage composition sum of above-mentioned raw materials is 100%.
Wherein distinguish particle diameter, thick nickel slag is prepared by the following: first nickel slag is carried out sieve classification, uses
Standard bushing screen is analyzed and determines differentiation particle diameter to the grating of nickel slag, distinguishes particle diameter and determines according to accumulative tailing over,
Accumulative tail over be 40～70% particle diameter as distinguishing particle diameter, through test or, the differentiation particle diameter of the present embodiment is
1.18mm, the thick nickel slag ratio example more than 1.18mm is 58.2%, less than the thin nickel slag proportion of 1.18mm
It is 41.8%.
Nickel ground-slag is prepared by the following: by the slag of thin nickel slag and particle diameter 1.0～2.0mm according to 1:0.2's
Proportion by weight carries out intergrinding, adds grinding aid three second of 0.13% (accounting for thin nickel slag and slag gross mass)
Hydramine, grinding time is 30min, and the fineness of the nickel ground-slag finally obtained is that 80 μm tail over 5.4%.
Cement is P.O 42.5.
The preparation method of this large dosage nickel slag bake-free brick is as follows: take each raw material thick nickel slag, nickel by above-mentioned magnitude relation
Ground-slag and cement carry out dispensing, add after water mixes again by above-mentioned magnitude relation and suppress, i.e. make after mixing
Obtaining large dosage nickel slag bake-free brick adobe, described adobe i.e. prepares large dosage nickel slag bake-free brick through natural curing.
Above-mentioned adobe natural curing 25 days, the intensity of the large dosage nickel slag bake-free brick prepared is 23.5Mpa, symbol
Close the regulation that in JC/T 422-2007 " non-sintered rubbish tailing-bricks ", MU 20 rank of regulation is non-burning brick.
Embodiment 4
The large dosage nickel slag bake-free brick that the present embodiment provides, is made up of the raw material of following weight/mass percentage composition:
The weight/mass percentage composition sum of above-mentioned raw materials is 100%.
Wherein distinguish particle diameter, thick nickel slag is prepared by the following: first nickel slag is carried out sieve classification, uses
Standard bushing screen is analyzed and determines differentiation particle diameter to the grating of nickel slag, distinguishes particle diameter and determines according to accumulative tailing over,
Accumulative tail over be 40～70% particle diameter as distinguishing particle diameter, through test or, the differentiation particle diameter of the present embodiment is
1.18mm, the thick nickel slag ratio example more than 1.18mm is 62%, less than the thin nickel slag institute accounting of 1.18mm particle diameter
Example is 38%.
Nickel ground-slag is prepared by the following: by the slag of thin nickel slag and particle diameter 1.0～2.0mm according to 1:0.6's
Proportion by weight carries out intergrinding, adds the triisopropanolamine of 0.1% (accounting for thin nickel slag and slag gross mass),
Grinding time is 34min, and the fineness of the nickel ground-slag finally obtained is that 80 μm tail over 7.4%.
The preparation method of this large dosage nickel slag bake-free brick is as follows: take each raw material thick nickel slag, nickel by above-mentioned magnitude relation
Ground-slag and cement carry out dispensing, add after water mixes again by above-mentioned magnitude relation and suppress, i.e. make after mixing
Obtaining large dosage nickel slag bake-free brick adobe, described adobe i.e. prepares large dosage nickel slag bake-free brick through natural curing.
Above-mentioned adobe is in 90 DEG C of steam curing 26h, and the intensity of prepared large dosage nickel slag bake-free brick is 22.5Mpa,
Meet the regulation that in JC/T 422-2007 " non-sintered rubbish tailing-bricks ", MU 20 rank of regulation is non-burning brick.
The present invention is not limited to above-mentioned detailed description of the invention, according to foregoing, according to the ordinary skill of this area
Knowledge and customary means, without departing under the present invention above-mentioned basic fundamental thought premise, the present invention can also make
The equivalent modifications of other various ways, replace or change, all fall among protection scope of the present invention.
Claims (8)
1. a large dosage nickel slag bake-free brick, is characterized in that mainly being made up of the raw material of following weight/mass percentage composition:
The weight/mass percentage composition sum of above-mentioned raw materials is 100%.
Large dosage nickel slag bake-free brick the most according to claim 1, is characterized in that: described thick nickel slag is
Particle diameter more than distinguish particle diameter big particle diameter nickel slag, described nickel ground-slag be particle diameter be less than distinguish particle diameter thin nickel slag with
The mixture of slag product after altogether grinding under the effect of grinding aid, described differentiation particle diameter sieves according to accumulative
Remaining percentage determines, using accumulated retained percentage be 40～70% particle diameter as distinguishing particle diameter.
Large dosage nickel slag bake-free brick the most according to claim 2, is characterized in that: described thin nickel slag with
The proportion by weight of slag is 1:0.2～1.
Large dosage nickel slag bake-free brick the most according to claim 2, is characterized in that: described grinding aid
Consumption accounts for the 0.05～0.3% of thin nickel slag and slag gross mass, and described grinding aid is triethanolamine, three isopropanols
Amine, ethylene glycol or propane diols.
Large dosage nickel slag bake-free brick the most according to claim 2, is characterized in that: the grain of described slag
Footpath is 0.5～2.0mm.
Large dosage nickel slag bake-free brick the most according to claim 2, is characterized in that: the time of grinding is altogether
20～60min, the discharging particle diameter of the product after grinding is that 80 μm tail over less than 10% altogether.
7. the preparation method of the large dosage nickel slag bake-free brick described in any one of claim 1-6, is characterized in that containing
Following steps: take each raw material thick nickel slag, nickel ground-slag and cement by above-mentioned magnitude relation and carry out dispensing, press after mixing
Above-mentioned magnitude relation adds after water mixes again to be suppressed, and i.e. prepares large dosage nickel slag bake-free brick adobe, described
Adobe i.e. prepares large dosage nickel slag bake-free brick through natural curing or steam curing.
8. the preparation method of the large dosage nickel slag bake-free brick described in claim 7, is characterized in that: natural curing
Be 25～30 days watering maintenance, steam curing be 75～100 DEG C under the conditions of maintenance 24～48h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188310.XA CN105859210A (en) | 2016-03-29 | 2016-03-29 | Baking-free bricks with high nickel slag proportion and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188310.XA CN105859210A (en) | 2016-03-29 | 2016-03-29 | Baking-free bricks with high nickel slag proportion and preparation method therefor |
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| CN105859210A true CN105859210A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610188310.XA Pending CN105859210A (en) | 2016-03-29 | 2016-03-29 | Baking-free bricks with high nickel slag proportion and preparation method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533469A (en) * | 2020-05-19 | 2020-08-14 | 江苏启坤循环经济产业技术开发有限公司 | Method for preparing novel steel slag powder by using industrial waste nickel slag |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408277A (en) * | 2013-06-09 | 2013-11-27 | 东南大学 | Nickel slag brick and preparation method thereof |
| CN104529312A (en) * | 2015-01-19 | 2015-04-22 | 河南城建学院 | High-admixing amount high-strength nickel slag brick and preparation method of high-admixing amount high-strength nickel slag brick |
| CN105084793A (en) * | 2015-07-02 | 2015-11-25 | 济南大学 | Active excitatory grinding aid for ferronickel slag and preparation method for active excitatory grinding aid |
| CN105396673A (en) * | 2015-09-18 | 2016-03-16 | 江苏融达新材料股份有限公司 | Method for producing grinding nickel-iron slag and steel slag composite powder through grinding by using vertical mill |
-
2016
- 2016-03-29 CN CN201610188310.XA patent/CN105859210A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408277A (en) * | 2013-06-09 | 2013-11-27 | 东南大学 | Nickel slag brick and preparation method thereof |
| CN104529312A (en) * | 2015-01-19 | 2015-04-22 | 河南城建学院 | High-admixing amount high-strength nickel slag brick and preparation method of high-admixing amount high-strength nickel slag brick |
| CN105084793A (en) * | 2015-07-02 | 2015-11-25 | 济南大学 | Active excitatory grinding aid for ferronickel slag and preparation method for active excitatory grinding aid |
| CN105396673A (en) * | 2015-09-18 | 2016-03-16 | 江苏融达新材料股份有限公司 | Method for producing grinding nickel-iron slag and steel slag composite powder through grinding by using vertical mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533469A (en) * | 2020-05-19 | 2020-08-14 | 江苏启坤循环经济产业技术开发有限公司 | Method for preparing novel steel slag powder by using industrial waste nickel slag |
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