CN109265045A - It is a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum - Google Patents
It is a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum Download PDFInfo
- Publication number
- CN109265045A CN109265045A CN201811283201.1A CN201811283201A CN109265045A CN 109265045 A CN109265045 A CN 109265045A CN 201811283201 A CN201811283201 A CN 201811283201A CN 109265045 A CN109265045 A CN 109265045A
- Authority
- CN
- China
- Prior art keywords
- coagulant
- methyl orange
- semi
- gypsum
- hydrated gypsum
- 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.)
- Pending
Links
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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/16—Sulfur-containing compounds
- C04B24/20—Sulfonated aromatic compounds
-
- 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
-
- 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
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
Abstract
The invention belongs to building materials of gypsum additive technology fields in chemical industry, and in particular to a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum.The coagulant be methyl orange or methyl orange add one of sulfate and/or inorganic potassium salt or it is a variety of be used in mixed way, improve β semi-hydrated gypsum hydration rate and gypsum product quality.The present invention has the advantage that 1, the hydration curing coagulant does not need special processing compared with existing gypsum set accelerator, in the market buy after can individually or be used in compounding.2, the hydration curing coagulant stability is good, and raw material sources are stablized extensive.3, the hydration coagulant can be with long-term preservation without influencing its using effect.
Description
Technical field
The invention belongs to building materials of gypsum additive technology fields in chemical industry, and in particular to one kind accelerates for β semi-hydrated gypsum
Hydration curing methyl orange coagulant.
Background technique
β semi-hydrated gypsum has transformable performance in a big way, can satisfy plasterboard technically and financially
Requirement, especially requirement can change its process conditions and cementitious material presetting period in the range of several seconds to a few houres,
Meet gypsum board industry production requirement.To meet these requirements, need to adjust its setting time with additive.Therefore, β is researched and developed
Semi-hydrated gypsum, which is hydrated coagulant, has critically important resource and Significance for Environment.
When producing gypsum wallboard, β semi-hydrated gypsum accelerates condensation particularly significant to production technology.The gypsum wallboard of modernization
Throughput rate can be increased to 220m/min by factory.In order to improve plant produced rate, unique method is to be greatly promoted institute
With the condensation of the half water plaster of paris of cementitious material.In the process it is necessary to use efficient coagulant, promote the condensation of β semi-hydrated gypsum.
But it is main still with empirical research on the mode of operation of such coagulant and the understanding for influencing the factor for producing and using
As foundation.Practical production experience shows to prepare a kind of effective coagulant of keeping in balance in a long time, and there is also very big
Problem.
Publication No. CN103402944A Chinese invention patent, discloses a kind of calcined gypsum hydration enhaucing additives, the water
Closing promotion additive main component is levigate calcium sulphate dihydrate, adds disulfate, sugar, and the mixed grindings such as starch form.
Additive amount is about land plaster 0.1 ~ 0.5% in use process, shortens to 6.0 points within 10.5 minutes when hydration time is from zero additive amount
Clock, it is obvious that hydration promotees solidifying effect.
Publication No. CN1341084A Chinese invention patent discloses a kind of coagulant for gypsum hydration, the hydration
Promoting additive main component is levigate brushite, and addition sugar, the mixed grindings such as starch form.This method is will be levigate
Epiglaubite, semi-hydrated gypsum and water are mixed to form gypsum slurry, which serves as seed crystal and quickly cause gypsum crystallization, thus
Accelerate gypsum hydration rate.The result shows that the gypsum hydration accelerator has certain facilitation effect.
Publication No. CN101184704A Chinese invention patent discloses a kind of relative side of wet gypsum accelerator
Method, composition and product, the hydration accelerator include 0.5 μm ~ 2 μm of calcium sulphate dihydrate, add phosphate compounds and have
Machine phosphorus compound compounds.Between upon grinding be 10min, hydration acceleration efficiency be 120%, upon grinding between be 25min, water
Closing acceleration efficiency is 210%, i.e., when being zero with wet gypsum accelerator additive amount, and hydration time is 10.5 min, when wet gypsum accelerates
When agent is 0.1% to 2% weight of amount of gypsum, hydration time foreshortens to 5.42min, and it is obvious that hydration promotees solidifying effect.
Germany is resistant to good fortune co-partnership company in the 5th national gypsum exchange of technology conference in 2010, it was recently reported that uses two water
Calcium sulfate promotes the system research of half water plaster of Paris sets, has studied semi-hydrated gypsum condensation mechanism, and select desulfurized gesso of flue gas
With the natural gypsum as gypsum set accelerator raw material.The result shows that control is not added coagulant and compares, the presetting period foreshortens to from 8min
1.5min, effect is than more significant.
Summary of the invention
The purpose of the present invention be intended to provide it is a kind of accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum, be stone
The production of the products such as cream wallboard, plaster strip, plaster cast, coloured plaster provides new technical solution.
A kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum, which is methyl orange or methyl orange
With one of sulfate and/or inorganic potassium salt or it is a variety of mix after, be put into high-speed grinder and grind, grind uniformly after be
Coagulant.
The invention has the advantages that: compared with existing gypsum set accelerator, have the advantage that 1, the hydration curing coagulant not
Need special processing, in the market buy after can individually or be used in compounding.2, the hydration curing coagulant stability is good, and raw material comes
Stablize extensive in source.3, the hydration coagulant can be with long-term preservation without influencing its using effect.
Specific embodiment
A kind of hydration curing coagulant of β semi-hydrated gypsum methyl orange class acceleration, the coagulant are methyl orange or methyl orange and sulphur
It after one of hydrochlorate and/or inorganic potassium salt or a variety of mixing, is put into high-speed grinder and grinds, be that rush is solidifying after grinding uniformly
Agent.
Preferably, the sulfate is ammonium sulfate.
Preferably, the inorganic potassium salt is potassium chloride.
The speed of high-speed grinder is 1200-1500 revs/min, and milling time is 10 ~ 40 seconds.
β semi-hydrated gypsum is put into container with coagulant according to certain weight ratio and is uniformly mixed, 60% β, half water stone is measured
In the water injection high speed agitator of cream weight, then said mixture is added in blender, high-speed stirred forms slurry, when stirring
Between be 7 seconds.Slurry is injected in cup, the cup for injecting slurry is placed in insulating foams polystyrene containers, with reduce its with
Heat exchange between environment.Temperature probe is placed in slurry, every five seconds clock records a temperature, since hardening hydration reaction is
Exothermic reaction can measure hydration levels by temperature rising.
Embodiment one
Table 1
| Number | β semi-hydrated gypsum (g) | Coagulant (g) | Water (g) | Presetting period (min) |
| 1 | 200 | 0 | 120 | 8.0 |
| 2 | 200 | 0.2 | 120 | 7.3 |
| 3 | 200 | 0.4 | 120 | 6.2 |
| 4 | 200 | 0.8 | 120 | 2.7 |
| 5 | 200 | 1.2 | 120 | 2.6 |
| 6 | 200 | 1.6 | 120 | 2.3 |
Coagulant is methyl orange, does not add other materials.When the additive amount of coagulant is 0-the 0.8% of β semi-hydrated gypsum weight,
When i.e. the additive amount of methyl orange increases to 1.6g from 0g, the gypsum presetting period foreshortened to 2.3 minutes from 8 minutes, such as table 1.Work as rush
When the additive amount of solidifying agent is greater than the 0.8% of β semi-hydrated gypsum weight, the presetting period is slowly reduced.
Embodiment two
Table 2
| Number | β semi-hydrated gypsum (g) | Coagulant (g) | Water (g) | Presetting period (min) |
| 1 | 200 | 0 | 120 | 8.0 |
| 2 | 200 | 0.2 | 120 | 7.0 |
| 3 | 200 | 0.4 | 120 | 6.2 |
| 4 | 200 | 0.8 | 120 | 5.1 |
| 5 | 200 | 1.2 | 120 | 4.4 |
| 6 | 200 | 1.6 | 120 | 3.6 |
The group of coagulant becomes methyl orange and ammonium sulfate, and weight ratio is methyl orange 50% and ammonium sulfate 50%.When the addition of coagulant
When amount is 0-the 0.8% of β semi-hydrated gypsum weight, i.e., when the additive amount of coagulant increases to 1.6g from 0g, the gypsum presetting period is from 8
Minute foreshortens to 3.6 minutes, such as table 2.When the additive amount of coagulant is greater than the 0.8% of β semi-hydrated gypsum weight, the presetting period is slow
It is slow to reduce.
Embodiment three
Table 3
| Number | β semi-hydrated gypsum (g) | Coagulant (g) | Water (g) | Presetting period (min) |
| 1 | 200 | 0 | 120 | 8.0 |
| 2 | 200 | 0.2 | 120 | 6.4 |
| 3 | 200 | 0.4 | 120 | 5.2 |
| 4 | 200 | 0.8 | 120 | 4.0 |
| 5 | 200 | 1.2 | 120 | 5.2 |
| 6 | 200 | 1.6 | 120 | 5.3 |
The group of coagulant becomes methyl orange, ammonium sulfate and potassium chloride, and weight ratio is methyl orange 50%, ammonium sulfate 20%, potassium chloride
30%.When the additive amount of coagulant is 0-the 0.4% of β semi-hydrated gypsum weight, i.e. the additive amount of coagulant increases to 0.8g from 0g
When, the gypsum presetting period foreshortened to 4 minutes from 8 minutes, when coagulant additive amount be greater than β semi-hydrated gypsum weight 0.4%, with
The addition of coagulant, the presetting period is also elongated, such as table 3.
Claims (5)
1. a kind of accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum, it is characterised in that: the coagulant is methyl orange
Methyl orange and one of sulfate and/or inorganic potassium salt or it is a variety of mix after, be put into high-speed grinder and grind, grinding is equal
It is coagulant after even.
2. a kind of according to claim 1 accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum, feature exists
In: coagulant is methyl orange, does not add other materials.
3. a kind of according to claim 1 accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum, feature exists
In: the group of coagulant becomes methyl orange and ammonium sulfate, and weight ratio is methyl orange 50% and ammonium sulfate 50%.
4. a kind of according to claim 1 accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum, feature exists
In: the group of coagulant becomes methyl orange, ammonium sulfate and potassium chloride, and weight ratio is methyl orange 50%, ammonium sulfate 20%, potassium chloride 30%.
5. a kind of described according to claim 1-any one of 5 accelerate hydration curing methyl orange to promote to coagulate for β semi-hydrated gypsum
Agent, it is characterised in that: the speed of high-speed grinder is 1200-1500 revs/min, and milling time is 10 ~ 40 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283201.1A CN109265045A (en) | 2018-10-31 | 2018-10-31 | It is a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283201.1A CN109265045A (en) | 2018-10-31 | 2018-10-31 | It is a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109265045A true CN109265045A (en) | 2019-01-25 |
Family
ID=65190939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811283201.1A Pending CN109265045A (en) | 2018-10-31 | 2018-10-31 | It is a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109265045A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132565A (en) * | 1977-10-31 | 1979-01-02 | Kaiser Cement & Gypsum Corporation | Accelerator for gypsum slurry |
| JPS5551750A (en) * | 1978-10-09 | 1980-04-15 | Idemitsu Kosan Co | Lightweight gypsum hardened body with improved mechanical strength |
| CN1341084A (en) * | 1999-12-28 | 2002-03-20 | 美国石膏公司 | Calcined gypsum hydration enhaucing additives |
| US6379458B1 (en) * | 2000-02-11 | 2002-04-30 | United States Gypsum Company | Efficient set accelerator for plaster |
| CN101184704A (en) * | 2005-04-27 | 2008-05-21 | 美国石膏公司 | Wet gypsum accelerator and methods, composition, and product relating thereto |
| CN103402944A (en) * | 2010-12-22 | 2013-11-20 | 美国石膏公司 | Set accelerator for gypsum hydration |
| JP2016050126A (en) * | 2014-08-28 | 2016-04-11 | 株式会社ノリタケカンパニーリミテド | Mixture powder for three-dimensional molding and three-dimensional molded article |
-
2018
- 2018-10-31 CN CN201811283201.1A patent/CN109265045A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132565A (en) * | 1977-10-31 | 1979-01-02 | Kaiser Cement & Gypsum Corporation | Accelerator for gypsum slurry |
| JPS5551750A (en) * | 1978-10-09 | 1980-04-15 | Idemitsu Kosan Co | Lightweight gypsum hardened body with improved mechanical strength |
| CN1341084A (en) * | 1999-12-28 | 2002-03-20 | 美国石膏公司 | Calcined gypsum hydration enhaucing additives |
| US6379458B1 (en) * | 2000-02-11 | 2002-04-30 | United States Gypsum Company | Efficient set accelerator for plaster |
| CN101184704A (en) * | 2005-04-27 | 2008-05-21 | 美国石膏公司 | Wet gypsum accelerator and methods, composition, and product relating thereto |
| CN103402944A (en) * | 2010-12-22 | 2013-11-20 | 美国石膏公司 | Set accelerator for gypsum hydration |
| JP2016050126A (en) * | 2014-08-28 | 2016-04-11 | 株式会社ノリタケカンパニーリミテド | Mixture powder for three-dimensional molding and three-dimensional molded article |
Non-Patent Citations (2)
| Title |
|---|
| 向才旺: "《建筑石膏及其制品》", 30 September 1998, 中国建材工业出版社 * |
| 赵云龙等: "《石膏应用技术问答》", 30 September 2016, 中国建材工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3427175A (en) | Accelerator for portland cement | |
| AU780883B2 (en) | Calcined gypsum hydration enhancing additives | |
| US3429724A (en) | Cement set retarding composition | |
| CN101139198A (en) | Chemical industrial gypsum building materials and method for manufacturing same | |
| CN102923986A (en) | Retarder suitable for quick set and rapid hardening of magnesium phosphate cement system and method of application thereof | |
| CA2918751C (en) | Fast setting portland cement compositions with alkali metal citrates and phosphates with high early-age compressive strength and reduced shrinkage | |
| CN109384412B (en) | Ordinary silicate concrete coagulant | |
| CN102875091A (en) | Preparation method for composite foam concrete plate | |
| CN102964108B (en) | Foamed asphalt-steel slag mixture and preparation method thereof | |
| CN108298860A (en) | One kind accelerating hydration annatto pigment coagulant for β semi-hydrated gypsums | |
| CN105985084A (en) | Gypsum hollow block and semi-dry production method of same | |
| CN109265045A (en) | It is a kind of to accelerate hydration curing methyl orange coagulant for β semi-hydrated gypsum | |
| CN108203257A (en) | One kind accelerates hydration yellow orange pigment coagulant for β semi-hydrated gypsums | |
| CN109320121A (en) | It is a kind of to accelerate hydration curing gentian violet coagulant for β semi-hydrated gypsum | |
| CN103979895A (en) | Composite foamed cement board and preparation method thereof | |
| CN108439846A (en) | One kind accelerating hydration sunset yellow coagulant for β semi-hydrated gypsums | |
| CN109305791A (en) | A kind of hydration curing coagulant of β semi-hydrated gypsum phenolphthalein class acceleration | |
| CN106746892B (en) | A kind of compounding poly carboxylic acid series water reducer and preparation method thereof based on steam-curing concrete | |
| CN103396080B (en) | A kind of wall body brick utilizing industrial residue to make and preparation method thereof | |
| CN101830727B (en) | Gas forming material for aerated concrete and preparation method thereof | |
| CN106007515B (en) | A kind of fired brick powder premixing dry-mixed mortar | |
| CN106045363A (en) | Pre-mixed mortar opening time regulator and preparation method thereof | |
| JPH01208317A (en) | Control of slaking reaction time of quick lime | |
| US3373048A (en) | Hardening accelerated portland cement | |
| CN106316322A (en) | Autoclaved Alpha-type gypsum brick and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |