CN109678369A - A kind of polynary solid waste prepares the production technology and method of cement - Google Patents
A kind of polynary solid waste prepares the production technology and method of cement Download PDFInfo
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- CN109678369A CN109678369A CN201811583112.9A CN201811583112A CN109678369A CN 109678369 A CN109678369 A CN 109678369A CN 201811583112 A CN201811583112 A CN 201811583112A CN 109678369 A CN109678369 A CN 109678369A
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- Prior art keywords
- cement
- liquid
- setting
- solid waste
- production technology
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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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses production technologies and method that a kind of polynary solid waste prepares cement, the production technology that the polynary solid waste prepares cement includes the raw material of following composition by weight: aqueous ardealite 45%-65%, alkalinity additive 0.5%-0.8%, miberal powder 2%-5%, blast-furnace cinder 35%-55%, a kind of polynary solid waste of the present invention prepares the production technology of cement and method passes through added with alkalinity additive, it can be pre-mixed in the pre-treatment step of gypsum containing water-setting with gypsum containing water-setting by alkalinity additive uniform, to pass through the soluble acid of residual a small amount of in alkalinity additive and in ardealite, in cooperation aging step, the secondary soluble acid in aqueous ardealite is neutralized, objectionable impurities is influenced caused by cement setting time and setting strength in effective reduction gypsum containing water-setting, significantly mention The high quality of cement.
Description
Technical field
The present invention relates to the technical fields that solid waste prepares cement, and in particular to a kind of polynary solid waste prepares the production work of cement
Skill and method.
Background technique
Cement, powdery hydraulicity inorganic coagulation material.At slurry after adding water and stirring, can harden in air or in water
Preferably hardening, and can the materials such as sand, stone are cemented together securely, mixture and the modern times of early stage lime and volcanic ash
Lime pozzolanic cement is much like, and the concrete made of its cementing rubble, not only intensity is higher after hardening, and can also resist
The erosion of fresh water or brackish water.For a long time, it is as a kind of important cementitious material, be widely used in civil construction, water conservancy,
The engineerings such as national defence, existing cement, mainly portland cement, portland cement have that high production cost, energy consumption is high, technique is more multiple
It is miscellaneous, a large amount of construction material is on the one hand needed in current Chinese economy construction, resource is consumed in preparation process, it is on the other hand a large amount of
Industrial Solid Waste and building waste need resource utilization, by being with the reluctant Industrial Solid Waste such as ardealite, blast-furnace cinder
Primary raw material preparation high-performance solid waste cement and concrete can economize on resources while carry out resource utilization to Industrial Solid Waste.
But some polynary solid wastes prepare the production technology of cement at present and method lacks to pre-process gypsum containing water-setting and arranges
It applies, while lacking to the additive handled in gypsum containing water-setting containing a small amount of soluble acid of residual, due to gypsum containing water-setting
In containing the soluble acid of a small amount of residual, can affect to the cement setting time and setting strength processed, together
When shorten cement service life.
Summary of the invention
The purpose of the present invention is to provide a kind of polynary solid wastes to prepare production technology and the method for cement to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of polynary solid waste prepares the production technology of cement
And method, the production technology that the polynary solid waste prepares cement include the raw material of following composition by weight: aqueous ardealite 45%-
65%, alkalinity additive 0.5%-0.8%, miberal powder 2%-5%, blast-furnace cinder 35%-55%.
Preferably, the Free water accounting contained in the aqueous ardealite is 15%, and the main component of aqueous ardealite
For calcium sulfate (CaSO4).
Preferably, the alkalinity additive mixes together for carbide slag powder and lime powder, and carbide slag powder
Proportion with limestone powder is 1:1, and alkalinity additive main component is calcium oxide (CaO) or calcium hydroxide
(CaOH)。
Preferably, the main chemical component of the blast-furnace cinder is: silica (SiO2), aluminum oxide (Al2O3),
Magnesia (MgO), manganese oxide (MnO), iron oxide (FeO) etc..
A kind of polynary solid waste prepares the production technology and method of cement, comprising the following steps:
S1: taking aqueous ardealite 45%-65% according to proportion, and aqueous ardealite is injected into progress grinding in ball mill and is added
Work, aqueous phosphogypsum powder are milled to specific surface area greater than 500m2/kg, then the gypsum powder containing water-setting after grinding is processed is poured into and deposited
It carries out spare in warehouse, blast-furnace cinder 35%-55% is then being taken according to proportion, blast-furnace cinder is injected into ball mill and is carried out
Grinding processing, ground granulated blast furnace slag are milled to surface area and are injected into storage greater than the blast-furnace cinder powder after 520m2/kg. then grinding
It is stored in storehouse.
S2: the pretreatment of gypsum containing water-setting；Suitable gypsum powder containing water-setting and alkalinity additive is taken to be added to according to proportion
In mixing and stirring tank, then to inside mixing and stirring tank gypsum containing water-setting and alkalinity additive be thoroughly mixed, make
It water-setting gypsum and alkalinity additive must be contained sufficiently reacts and obtain raw material A；
S3: wet ball-milling；Raw material A, suitable miberal powder and suitable blast-furnace cinder powder are weighed be put into according to the proportion
It carries out being sufficiently mixed stirring in blender, mixture B after mixing is then injected into wet ball mill, then to wet ball-milling
Suitable water is added in machine, carries out grinding by wet ball mill and obtains liquid cement liquid.
S4: ageing；By the liquid cement liquid after wet ball mill grinding by spiral conveying tube be injected into pulp storage tank carry out it is old
Change, the time of ageing is 8h-10h；It needs to carry out the liquid cement liquid inside pulp storage tank by agitating device when ageing continuous
It is sufficiently stirred, prevents the paddle liquid precipitate of gypsum containing water-setting hardened, so that liquid cement liquid is uniformly mixed
S5: concentration is adjusted；The uniform cement slurry of pulp storage tank internal mix is filled into concentration pot, is then held by concentration pot
The solid content of blade is measured again, when being packed into liquid cement liquid to concentration pot, needs to be mentioned in pulp storage tank different location
Liquid cement liquid is taken, substep is measured three times, and when the data error measured three times is less than 0.1%, the result of measurement is effective
S6: after the completion of concentration is adjusted, the liquid cement liquid inside pulp storage tank is injected into holding vessel by screw lifting pipe
In, it is finally completed and polynary solid waste is carried out to prepare cement.
Preferably, the reaction time of the gypsum powder containing water-setting and alkalinity additive is 3h-5h, and water gypsum containing water-setting
The reaction temperature of powder and alkalinity additive is 25-50 degrees Celsius.
Preferably, the concentration of the solid content of the paddle liquid is 55%-60%, it is ensured that enough fluidities of paddle liquid.
Preferably, when the paddle liquid solid content is greater than 60%, supplement can be added water and stirred by adding, the paddle liquid solid content
When less than 60%, pulp storage tank interior stirring device can be stopped and be stirred, so that paddle liquid precipitate, then takes out the water on surface layer
Out, then by agitating device stirring is continuesd to mix.
Compared with prior art, the beneficial effects of the present invention are: can be added by alkalinity by being added with alkalinity additive
Add agent in the pre-treatment step of gypsum containing water-setting with the premixing of gypsum containing water-setting uniformly, thus by alkalinity additive with phosphorus stone
The soluble acid of a small amount of residual in cream, in cooperation aging step, the secondary soluble acid in aqueous ardealite is carried out at neutralization
Reason, effectively reduce objectionable impurities in gypsum containing water-setting influences caused by cement setting time and setting strength, significantly mentions
The high quality of cement, extends the service life of cement, while common cement products is compared, due to largely using containing water-setting
The substitute of gypsum and blast-furnace cinder cement the most, reduces the dosage of portland cement, thus solid waste cement have it is biggish at
In addition this advantage can carry out resource utilization to gypsum containing water-setting and blast-furnace cinder, reduce gypsum containing water-setting and Blast Furnace Ore
Slag muck puts accounting, reduces the pollution of gypsum containing water-setting and blast-furnace cinder to environment, is conducive to protect environment, save the area, society
It can benefit and remarkable in economical benefits.
Detailed description of the invention
Fig. 1 is the production technology and method preparation flow schematic diagram that a kind of polynary solid waste of the present invention prepares cement.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution: a kind of polynary solid waste prepares the production technology and method of cement, polynary solid waste
The production technology for preparing cement includes the raw material of following composition by weight: aqueous ardealite 45%-65%, alkalinity additive 0.5%-
0.8%, miberal powder 2%-5%, blast-furnace cinder 35%-55%, the Free water accounting contained in aqueous ardealite are 15%, and aqueous
The main component of ardealite is calcium sulfate (CaSO4), and alkalinity additive is that carbide slag powder and lime powder mix together,
And the proportion of carbide slag powder and limestone powder is 1:1, and alkalinity additive main component is calcium oxide (CaO) or hydrogen
Calcium oxide (CaOH), the soluble acid of a small amount of residual in alkalinity additive and in ardealite, it is miscellaneous to reduce nocuousness in gypsum containing water-setting
It is influenced caused by confrontation cement setting time and setting strength, the main chemical component of blast-furnace cinder is: silica (SiO2),
Aluminum oxide (Al2O3), magnesia (MgO), manganese oxide (MnO), iron oxide (FeO) etc..
A kind of polynary solid waste prepares the production technology and method of cement, comprising the following steps:
S1: taking aqueous ardealite 45%-65% according to proportion, and aqueous ardealite is injected into progress grinding in ball mill and is added
Work, aqueous phosphogypsum powder are milled to specific surface area greater than 500m2/kg, then the gypsum powder containing water-setting after grinding is processed is poured into and deposited
It carries out spare in warehouse, blast-furnace cinder 35%-55% is then being taken according to proportion, blast-furnace cinder is injected into ball mill and is carried out
Grinding processing, ground granulated blast furnace slag are milled to surface area and are injected into storage greater than the blast-furnace cinder powder after 520m2/kg. then grinding
It is stored in storehouse.
S2: the pretreatment of gypsum containing water-setting；Suitable gypsum powder containing water-setting and alkalinity additive is taken to be added to according to proportion
In mixing and stirring tank, then to inside mixing and stirring tank gypsum containing water-setting and alkalinity additive be thoroughly mixed, make
It water-setting gypsum and alkalinity additive must be contained sufficiently reacts and obtain raw material A；
S3: wet ball-milling；Raw material A, suitable miberal powder and suitable blast-furnace cinder powder are weighed be put into according to the proportion
It carries out being sufficiently mixed stirring in blender, mixture B after mixing is then injected into wet ball mill, then to wet ball-milling
Suitable water is added in machine, carries out grinding by wet ball mill and obtains liquid cement liquid.
S4: ageing；By the liquid cement liquid after wet ball mill grinding by spiral conveying tube be injected into pulp storage tank carry out it is old
Change, the time of ageing is 8h-10h；It needs to carry out the liquid cement liquid inside pulp storage tank by agitating device when ageing continuous
It is sufficiently stirred, prevents the paddle liquid precipitate of gypsum containing water-setting hardened, so that liquid cement liquid is uniformly mixed
S5: concentration is adjusted；The uniform cement slurry of pulp storage tank internal mix is filled into concentration pot, is then held by concentration pot
The solid content of blade is measured again, when being packed into liquid cement liquid to concentration pot, needs to be mentioned in pulp storage tank different location
Liquid cement liquid is taken, substep is measured three times, and when the data error measured three times is less than 0.1%, the result of measurement is effective
S6: after the completion of concentration is adjusted, the liquid cement liquid inside pulp storage tank is injected into holding vessel by screw lifting pipe
In, it is finally completed and polynary solid waste is carried out to prepare cement.
The reaction time of gypsum powder containing water-setting and alkalinity additive is 3h-5h, and water gypsum powder containing water-setting and alkalinity
The reaction temperature of additive is 25-50 degrees Celsius, and the concentration of the solid content of paddle liquid is 55%-60%, it is ensured that the foot of paddle liquid
Enough fluidities can add water and stir supplement by adding, the paddle liquid solid content is less than 60% when paddle liquid solid content is greater than 60%
When, pulp storage tank interior stirring device can be stopped and be stirred, so that paddle liquid precipitate, then extracts the water on surface layer out, then pass through
Agitating device continuess to mix stirring.
When carrying out performance detection to the liquid cement liquid of preparation, directly by the liquid cement liquid and sandstone aggregate of preparation, diminishing
The ingredient of agent carries out batching mixing, is pressed into base by molding machine, becomes product through maintenance, then by product to cement
The traditional performances such as the intensity of anti-fresh water erosion performance and cement are tested.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. production technology and method that a kind of polynary solid waste prepares cement, which is characterized in that the polynary solid waste prepares cement
Production technology includes the raw material of following composition by weight: aqueous ardealite 45%-65%, alkalinity additive 0.5%-0.8%, miberal powder
2%-5%, blast-furnace cinder 35%-55%.
2. production technology and method that a kind of polynary solid waste according to claim 1 prepares cement, it is characterised in that: described
The Free water accounting contained in aqueous ardealite is 15%, and the main component of aqueous ardealite is calcium sulfate (CaSO4).
3. production technology and method that a kind of polynary solid waste according to claim 1 prepares cement, it is characterised in that: described
Alkalinity additive is that carbide slag powder and lime powder mix together, and the proportion of carbide slag powder and limestone powder is
1:1, and alkalinity additive main component is calcium oxide (CaO) or calcium hydroxide (CaOH).
4. production technology and method that a kind of polynary solid waste according to claim 1 prepares cement, it is characterised in that: described
The main chemical component of blast-furnace cinder is: silica (SiO2), aluminum oxide (Al2O3), magnesia (MgO), manganese oxide
(MnO), iron oxide (FeO) etc..
5. a kind of polynary solid waste described in -4 prepares the production technology and method of cement according to claim 1, which is characterized in that packet
Include following steps:
S1: taking aqueous ardealite 45%-65% according to proportion, and aqueous ardealite is injected into progress grinding processing in ball mill,
Aqueous phosphogypsum powder is milled to specific surface area greater than 500m2/kg, then the gypsum powder containing water-setting after grinding is processed pours into storage silo
Middle progress is spare, is then taking blast-furnace cinder 35%-55% according to proportion, blast-furnace cinder is injected into ball mill and carries out grinding
Processing, ground granulated blast furnace slag are milled to surface area greater than 520m2/kg, and then the blast-furnace cinder powder after grinding is injected into storage warehouse
Storage.
S2: the pretreatment of gypsum containing water-setting；Suitable gypsum powder containing water-setting and alkalinity additive is taken to be added to mixing according to proportion
In agitator tank, then to inside mixing and stirring tank gypsum containing water-setting and alkalinity additive be thoroughly mixed so that containing
Water-setting gypsum and alkalinity additive, which sufficiently react, obtains raw material A.
S3: wet ball-milling；Raw material A, suitable miberal powder and suitable blast-furnace cinder powder are weighed be put into stirring according to the proportion
It carries out being sufficiently mixed stirring in machine, mixture B after mixing is then injected into wet ball mill, then add to wet ball mill
Enter suitable water, grinding is carried out by wet ball mill and obtains liquid cement liquid.
S4: ageing；Liquid cement liquid after wet ball mill grinding is injected into pulp storage tank by spiral conveying tube to be aged, it is old
The time of change is 8h-10h；It needs constantly sufficiently to stir the liquid cement liquid progress inside pulp storage tank by agitating device when ageing
It mixes, prevents the paddle liquid precipitate of gypsum containing water-setting hardened, so that liquid cement liquid is uniformly mixed.
S5: concentration is adjusted；The uniform cement slurry of pulp storage tank internal mix is filled into concentration pot, then passes through concentration pot load-bearing pair
The solid content of blade is measured, and when being packed into liquid cement liquid to concentration pot, needs to extract water in pulp storage tank different location
Mud paddle liquid, substep are measured three times, and when the data error measured three times is less than 0.1%, the result of measurement is effective.
S6: after the completion of concentration is adjusted, the liquid cement liquid inside pulp storage tank is injected into holding vessel by screw lifting pipe, most
It completes that polynary solid waste is carried out to prepare cement eventually.
6. preparing the production technology and method of cement according to a kind of polynary solid waste a kind of as claimed in claim 5, feature exists
In the reaction time of the gypsum powder containing water-setting and alkalinity additive is 3h-5h, and water gypsum powder containing water-setting and alkalinity add
The reaction temperature for adding agent is 25-50 degrees Celsius.
7. preparing the production technology and method of cement according to a kind of polynary solid waste a kind of as claimed in claim 5, feature exists
In the concentration of the solid content of the paddle liquid is 55%-60%, it is ensured that enough fluidities of paddle liquid.
The production technology and method of cement are prepared according to a kind of polynary solid waste a kind of as claimed in claim 5, which is characterized in that
When the paddle liquid solid content is greater than 60%, supplement can be added water and stirred by adding, it, can be with when the paddle liquid solid content is less than 60%
Stop pulp storage tank interior stirring device to be stirred, so that paddle liquid precipitate, then extracts the water on surface layer out, then pass through agitating device
Continues to mix stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811583112.9A CN109678369A (en) | 2018-12-24 | 2018-12-24 | A kind of polynary solid waste prepares the production technology and method of cement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811583112.9A CN109678369A (en) | 2018-12-24 | 2018-12-24 | A kind of polynary solid waste prepares the production technology and method of cement |
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| CN201811583112.9A Pending CN109678369A (en) | 2018-12-24 | 2018-12-24 | A kind of polynary solid waste prepares the production technology and method of cement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138105A (en) * | 2020-01-17 | 2020-05-12 | 河北科技大学 | Method for adjusting β -hemihydrate gypsum setting time |
| CN112079613A (en) * | 2020-09-09 | 2020-12-15 | 四川绵筑新材料有限公司 | Preparation method of slag phosphogypsum high-early-strength pavement base material |
| CN112456829A (en) * | 2021-01-05 | 2021-03-09 | 辽宁银盛水泥集团有限公司 | Process for producing cement by using solid waste |
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| CN101386478A (en) * | 2008-10-21 | 2009-03-18 | 武汉理工大学 | Slag sulphate cement and preparation method thereof |
| CN101456686A (en) * | 2007-12-10 | 2009-06-17 | 尹小林 | Novel industrial waste gypsum self forming energy-saving process |
| WO2010143656A1 (en) * | 2009-06-09 | 2010-12-16 | 株式会社竹中工務店 | Hydraulic cement composition |
| CN104446048A (en) * | 2014-12-01 | 2015-03-25 | 中国建筑材料科学研究总院 | High-calcium sulfoaluminate series cement |
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2018
- 2018-12-24 CN CN201811583112.9A patent/CN109678369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456686A (en) * | 2007-12-10 | 2009-06-17 | 尹小林 | Novel industrial waste gypsum self forming energy-saving process |
| CN101386478A (en) * | 2008-10-21 | 2009-03-18 | 武汉理工大学 | Slag sulphate cement and preparation method thereof |
| WO2010143656A1 (en) * | 2009-06-09 | 2010-12-16 | 株式会社竹中工務店 | Hydraulic cement composition |
| CN104446048A (en) * | 2014-12-01 | 2015-03-25 | 中国建筑材料科学研究总院 | High-calcium sulfoaluminate series cement |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138105A (en) * | 2020-01-17 | 2020-05-12 | 河北科技大学 | Method for adjusting β -hemihydrate gypsum setting time |
| CN112079613A (en) * | 2020-09-09 | 2020-12-15 | 四川绵筑新材料有限公司 | Preparation method of slag phosphogypsum high-early-strength pavement base material |
| CN112456829A (en) * | 2021-01-05 | 2021-03-09 | 辽宁银盛水泥集团有限公司 | Process for producing cement by using solid waste |
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