CN106220018A - Preparation method and application are dried in the revolution of a kind of inorganic particle water-retaining agent - Google Patents
Preparation method and application are dried in the revolution of a kind of inorganic particle water-retaining agent Download PDFInfo
- Publication number
- CN106220018A CN106220018A CN201610565639.3A CN201610565639A CN106220018A CN 106220018 A CN106220018 A CN 106220018A CN 201610565639 A CN201610565639 A CN 201610565639A CN 106220018 A CN106220018 A CN 106220018A
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- CN
- China
- Prior art keywords
- alkaline residue
- water
- retaining agent
- inorganic particle
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- 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
- C04B28/08—Slag cements
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/46—Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
- C04B2103/465—Water-sorbing agents, hygroscopic or hydrophilic agents
Abstract
The invention discloses a kind of inorganic particle water-retaining agent and preparation method and application are dried in revolution, by revolution oven drying method, the dechlorination alkaline residue mixture broken up is dried, be prepared as 0.30mm and tail over the powder body water-retaining agent less than 20wt%.The inorganic particle water-retaining agent good water-retaining property that the present invention prepares, it is possible to for improving the water-retaining property of mortar and the contractility of concrete.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of utilization revolution oven drying method and be prepared by dechlorination alkaline residue mixture
Powder body, as method and the application of water-retaining agent.
Background technology
The waste residue that alkaline residue is ammonia-soda process soda and produces, China is currently soda manufacture state maximum in the world, often
The alkaline residue that year produces because producing soda is up to 3,000,000 tons, and such substantial amounts of alkaline residue causes many problem of environmental pollutions already.
But alkaline residue chloride ion content is high, under absolute dry condition, the mass of ion mark of chloride ion can reach 10%, and this gives combining of alkaline residue
Closing improvement and bring great difficulty, current China alkaline residue utilization rate only has 3～4%, the most still stores up or fills out sea process, this
Also result in the biggest environmental problem.
By the analysis to alkaline residue microstructure, find that alkaline residue has large quantity micropore gap, therefore consider to dechlorinate alkaline residue
After, as mortar and the water-retaining agent of concrete.
At present mortar and concrete water-retaining agent area research more be organic water retainer.
(1) in mortar, main employing cellulose ethers water-retaining agent improves mortar bonding performance.In recent years, all kinds of novel walls
Material is widely used, its rough surface porous, and spreading upon the mixing water in mortar thereon can quickly be siphoned away by materials for wall,
This is to mortar performance, and particularly adhesion strength and cracking resistance is all had higher requirement.Mix cellulose ethers water-retaining agent
Can effectively solve the problem that this problem, but this water-retaining agent there is also the problem that price is high, be badly in need of exploitation inorganic water-retaining agent at a low price.
(2) concrete mainly use super absorbent resin (SAP) improve concrete performance.The self-constriction of concrete is always
It it is the problem that is difficult to avoid that of cement-based gelling material.The especially high performance concrete ratio of mud is low, and self-constriction is bigger, it is easier to produce
Raw crack, affects structure durability.Research both at home and abroad is mainly by the high-hydroscopicity of SAP, it is achieved the interior maintenance of concrete, improves
The contraction of concrete.But SAP equally exists the problem that price is higher, and SAP has water swellability, is admixed to concrete
In, when SAP discharges moisture of its storage, SAP volume-diminished, easily cause concrete voids rate series of problems such as big grade.At present
China is wideling popularize high performance concrete, is badly in need of low cost to solve the self-desiccation shrinkage problem of high performance concrete
Technology.
For improving the water retention of mortar, early stage applicant carried out with dechlorination alkaline residue mixture grinding as mortar water-retaining agent
Study carefully, and obtain good result, but dechlorination alkaline residue mixture is after dehydration-dried, can bond agglomerating, it is difficult to dispersion.Cause
This early stage all uses the mode of the slurrying that added water by dechlorination alkaline residue mixture before use to apply, but this mode exists reality
The problem of constructing operation inconvenience.
Applicant also utilizes dechlorination alkaline residue mixture to develop high-moisture-retention cement (patent No. ZL201410383582.6),
Dechlorination alkaline residue mixture is utilized to improve the water-retaining property of cement.Dechlorination alkaline residue mixture is added in cement, although easy to use, but
Needing cement plant to produce specially, actual popularization and application are the most difficult.
In view of this, propose the alkaline residue mixture powder process that will dechlorinate, add in mortar and concrete as water-retaining agent during use
Thinking.Preparing the method for powder body, can be the method directly using grinding be prepared as powder body dechlorination alkaline residue mixture, but this
Method can destroy the internal pore structure of dechlorination alkaline residue mixture, causes water-retaining property to have declined.If using revolution to dry
Technique, will dechlorinate alkaline residue mixture powder process, both dechlorination alkaline residue mixture can be prepared as powder body, and can farthest retain again and remove
Pore structure within chlor-alkali slag mixture.
Summary of the invention
The technical problem to be solved is: use revolution stoving process to process dechlorination alkaline residue mixture,
On the premise of at utmost ensureing dechlorination alkaline residue water retention property, it is prepared into powder body water-retaining agent, solves alkaline residue Synthetic
While reason problem, effectively solve mortar and the performance issue of concrete, it is achieved turn waste into wealth.
It is as follows that the present invention solves the technical scheme that this technical problem used.
Preparation method is dried in the revolution of a kind of inorganic particle water-retaining agent, comprises the steps:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, will return
Sand returns the mixture of stone powder, alkaline residue and water and carries out processed, obtains chloride ion content less than solid gross mass in mixture
The dechlorination alkaline residue mixture of 1.0wt%；
3) carry out breaing up behaviour less than the dechlorination alkaline residue mixture of solid gross mass 1.0wt% in mixture by chloride ion content
Make, obtain the alkaline residue compound particles that dechlorinates；
4) dechlorination alkaline residue compound particles is introduced revolution drying plant, make 0.30mm and tail over the powder less than 20wt%
Body, obtains inorganic particle water-retaining agent.
Further, step 3) described in operation of breaing up refer to utilize the one included in beater, reamer, blender will
The dechlorination alkaline residue mixture of bulk and bulk is dispersed as the alkaline residue compound particles that dechlorinates.
Further, step 3) described in break up in operation, add water to break up smoothly, but the dechlorination alkaline residue after breaing up
The moisture content of compound particles is not more than 150wt%.
Further, step 3) in, the control temperature in rotary dryer is 360 DEG C～800 DEG C.
The inorganic particle water-retaining agent prepared by made as described above method.
Described inorganic particle water-retaining agent using method in mortar is to replace the Binder Materials in mortar, and volume is total
5wt%～20wt% of Binder Materials.
Described inorganic particle water-retaining agent using method in concrete is to replace the Binder Materials in concrete, volume
2wt%～15wt% for total Binder Materials.
Compared with prior art, present invention have the advantage that
(1) equipment that the present invention uses is relatively common, it is not necessary to orders especially and makes.
(2) preparation method that the present invention proposes is during producing powder body water-retaining agent, without interference with dechlorination alkaline residue mixture
Internal pore structure, water retention property is good.
(3) the powder body water-retaining agent that prepared by the present invention, is mainly composed of sand return and returns stone, alkaline residue and water, and cheap, performance is steady
Fixed, adapt to different working environments, and reduce the use cost of water-retaining agent.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
Revolution oven drying method and dechlorination alkaline residue mixture is utilized to prepare inorganic particle water-retaining agent:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, will return
Sand returns the mixture of stone powder, alkaline residue and water and carries out processed, and after dehydration, moisture content is 88%, obtains chloride ion content for mixing
The dechlorination alkaline residue mixture of solid gross mass 0.5wt% in thing；
3) the dechlorination alkaline residue mixture that chloride ion content is solid gross mass 0.5wt% in mixture is added water, utilize
Beater carries out breaing up operation, obtains the dechlorination alkaline residue compound particles that moisture content is 102wt%；
4) dechlorination alkaline residue compound particles being introduced revolution drying plant, in rotary dryer, temperature is 360 DEG C, prepares
0.30mm tails over the inorganic particle water-retaining agent into 12wt%.
Embodiment 2
Revolution oven drying method and dechlorination alkaline residue mixture is utilized to prepare inorganic particle water-retaining agent:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, will return
Sand returns the mixture of stone powder, alkaline residue and water and carries out processed, and after dehydration, moisture content is 89%, obtains chloride ion content for mixing
The dechlorination alkaline residue mixture of solid gross mass 0.9wt% in thing；
3) the dechlorination alkaline residue mixture that chloride ion content is solid gross mass 0.9wt% in mixture is added water, utilize
Reamer carries out breaing up operation, obtains the dechlorination alkaline residue compound particles that moisture content is 105wt%；
4) dechlorination alkaline residue compound particles being introduced revolution drying plant, in rotary dryer, temperature is 800 DEG C, prepares 80
It it is the powder body water-retaining agent of 15wt% more than tm screen.
Embodiment 3
Revolution oven drying method and dechlorination alkaline residue mixture is utilized to prepare inorganic particle water-retaining agent:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, will return
Sand returns the mixture of stone powder, alkaline residue and water and carries out processed, and after dehydration, moisture content is 82%, obtains chloride ion content for mixing
The dechlorination alkaline residue mixture of solid gross mass 0.2wt% in thing；
3) the dechlorination alkaline residue mixture that chloride ion content is solid gross mass 0.2wt% in mixture is added water, utilize
Blender carries out breaing up operation, obtains the dechlorination alkaline residue compound particles that moisture content is 106wt%；
4) dechlorination alkaline residue compound particles being introduced revolution drying plant, in rotary dryer, temperature is 600 DEG C, prepares
0.30mm tails over the powder body water-retaining agent into 13wt%.
Embodiment 4
Revolution oven drying method and dechlorination alkaline residue mixture is utilized to prepare inorganic particle water-retaining agent:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, will return
Sand returns the mixture of stone powder, alkaline residue and water and carries out processed, and after dehydration, moisture content is 85%, obtains chloride ion content for mixing
The dechlorination alkaline residue mixture of solid gross mass 0.4wt% in thing；
3) do not add water directly profit by the dechlorination alkaline residue mixture that chloride ion content is solid gross mass 0.4wt% in mixture
Carry out breaing up operation with reamer, obtain the dechlorination alkaline residue compound particles that moisture content is 102wt%；
4) dechlorination alkaline residue compound particles being introduced revolution drying plant, in rotary dryer, temperature is 700 DEG C, prepares
0.30mm tails over the powder body water-retaining agent into 12wt%.
Embodiment 5
Revolution oven drying method and dechlorination alkaline residue mixture is utilized to prepare inorganic particle water-retaining agent:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, will return
Sand returns the mixture of stone powder, alkaline residue and water and carries out processed, and after dehydration, moisture content is 86%, obtains chloride ion content for mixing
The dechlorination alkaline residue mixture of solid gross mass 0.6wt% in thing；
3) do not add water directly profit by the dechlorination alkaline residue mixture that chloride ion content is solid gross mass 0.6wt% in mixture
Carry out breaing up operation with beater, obtain the dechlorination alkaline residue compound particles that moisture content is 106wt%；
4) dechlorination alkaline residue compound particles being introduced revolution drying plant, in rotary dryer, temperature is 500 DEG C, prepares
0.30mm tails over the powder body water-retaining agent into 11wt%.
The inorganic particle water-retaining agent that embodiment 1～5 prepares is mixed respectively by Test method for strength of hydraulic cement mortar (ISO method)
The cement mortar made, the inorganic particle water-retaining agent of incorporation replaces the cement in cement mortar, records each incorporation powder body water-retaining agent
The water-retaining property such as table 1 of cement mortar.
The cement mortar water-retaining property of each powder body water-retaining agent that table 1 mixes
| Embodiment is numbered | Volume (wt%) | Water-retaining property (%) |
| Blank | — | 85.8 |
| 1 | 5 | 91.3 |
| 1 | 10 | 92.2 |
| 1 | 15 | 93.6 |
| 1 | 20 | 95.0 |
| 2 | 10 | 93.1 |
| 3 | 10 | 93.6 |
| 4 | 10 | 92.0 |
| 5 | 10 | 92.3 |
As shown in Table 1, after filling described inorganic particle water-retaining agent, cement mortar water-retaining property is with inorganic particle water-retaining agent volume
Increase and improve, volume at 10wt% time, water-retaining property reaches more than 92%.
The inorganic particle water-retaining agent obtained in embodiment 1～5 is mixed in the concrete coordinating such as table 2 respectively.
Table 2 concrete mix
Wherein, when the incorporation of inorganic particle water-retaining agent coordinates in the concrete of such as table 2, the inorganic particle water-retaining agent of incorporation
Volume be equally divided into two parts, replace flyash and graining blast-furnace cinder micro-powder respectively.Mix the mixed of inorganic particle water-retaining agent
The 24h rate of self-contraction such as table 3 of solidifying soil.
Table 3 mixes the concrete 24h rate of self-contraction of inorganic particle water-retaining agent
| Embodiment is numbered | Volume (wt%) | 24h self-constriction (× 10-6) |
| Blank | — | 56.3 |
| 1 | 2 | 43.8 |
| 1 | 10 | 25.9 |
| 1 | 15 | 20.9 |
| 2 | 5 | 36.1 |
| 3 | 10 | 28.4 |
| 4 | 10 | 27.2 |
| 5 | 10 | 26.8 |
As shown in Table 3, after filling described inorganic particle water-retaining agent, the contractility of concrete is obviously reduced.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine or simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (7)
1. preparation method is dried in the revolution of an inorganic particle water-retaining agent, it is characterised in that comprise the steps:
1) sand return is returned stone becomes sand return to return stone powder through broken, grinding, stand-by；
2) obtain sand return after sand return being returned stone powder, alkaline residue and water mix homogeneously and return the mixture of stone powder, alkaline residue and water, sand return is returned
The mixture of stone powder, alkaline residue and water carries out processed, obtains chloride ion content less than solid gross mass 1.0wt% in mixture
Dechlorination alkaline residue mixture；
3) carry out breaing up operation less than the dechlorination alkaline residue mixture of solid gross mass 1.0wt% in mixture by chloride ion content,
To dechlorination alkaline residue compound particles；
4) dechlorination alkaline residue compound particles is introduced revolution drying plant, make 0.30mm and tail over the powder body less than 20wt%, obtain
Inorganic particle water-retaining agent.
2. dry preparation method according to the revolution of a kind of inorganic particle water-retaining agent described in claim 1, it is characterised in that step
Rapid 3) the breaing up operation described in refers to utilize and includes that a kind of in beater, reamer, blender is by bulk and the dechlorination of bulk
Alkaline residue mixture is dispersed as the alkaline residue compound particles that dechlorinates.
3. dry preparation method according to the revolution of a kind of inorganic particle water-retaining agent described in claim 1, it is characterised in that step
Rapid 3) break up in operation described in, add water to break up smoothly, but the dechlorination alkaline residue compound particles after breaing up is aqueous
Rate is not more than 150wt%.
4. dry preparation method according to the revolution of a kind of inorganic particle water-retaining agent described in claim 1, it is characterised in that step
Rapid 3), in, the control temperature in rotary dryer is 360 DEG C ~ 800 DEG C.
5. the inorganic particle water-retaining agent prepared by preparation method described in any one of claim 1-4.
6. inorganic particle water-retaining agent using method in mortar described in claim 5 is to replace Binder Materials in mortar, volume
5wt% ~ 20wt% for total Binder Materials.
7. inorganic particle water-retaining agent using method in concrete described in claim 5 is to replace the gelling material in concrete
Material, volume is the 2wt% ~ 15wt% of total Binder Materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565639.3A CN106220018B (en) | 2016-07-15 | 2016-07-15 | Revolution drying preparation method and the application of a kind of inorganic particle water-retaining agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565639.3A CN106220018B (en) | 2016-07-15 | 2016-07-15 | Revolution drying preparation method and the application of a kind of inorganic particle water-retaining agent |
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| CN106220018A true CN106220018A (en) | 2016-12-14 |
| CN106220018B CN106220018B (en) | 2018-09-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190690A (en) * | 2014-08-06 | 2014-12-10 | 华南理工大学 | Method for preparing chlorine-removal alkali residue mixture by utilizing alkali residues through ammonia-soda process and application of chlorine-removal alkali residue mixture |
| CN104192881A (en) * | 2014-08-06 | 2014-12-10 | 华南理工大学 | Method for preparing multipurpose solid waste slag by using return sand and return stone and application of solid waste slag |
| CN104193202A (en) * | 2014-08-06 | 2014-12-10 | 华南理工大学 | Cement with high water-retaining property |
| CN105032903A (en) * | 2015-09-08 | 2015-11-11 | 华北理工大学 | Method for removing chloride ions in waste alkaline residues |
-
2016
- 2016-07-15 CN CN201610565639.3A patent/CN106220018B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190690A (en) * | 2014-08-06 | 2014-12-10 | 华南理工大学 | Method for preparing chlorine-removal alkali residue mixture by utilizing alkali residues through ammonia-soda process and application of chlorine-removal alkali residue mixture |
| CN104192881A (en) * | 2014-08-06 | 2014-12-10 | 华南理工大学 | Method for preparing multipurpose solid waste slag by using return sand and return stone and application of solid waste slag |
| CN104193202A (en) * | 2014-08-06 | 2014-12-10 | 华南理工大学 | Cement with high water-retaining property |
| CN105032903A (en) * | 2015-09-08 | 2015-11-11 | 华北理工大学 | Method for removing chloride ions in waste alkaline residues |
Non-Patent Citations (1)
| Title |
|---|
| 严卫军: ""矿渣用作矿物掺合料对砂浆和混凝土性能影响及其机理研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
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| CN106220018B (en) | 2018-09-14 |
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