CN105601305A - Novel magnesian fireproof fire clay and preparing process thereof - Google Patents
Novel magnesian fireproof fire clay and preparing process thereof Download PDFInfo
- Publication number
- CN105601305A CN105601305A CN201511029657.1A CN201511029657A CN105601305A CN 105601305 A CN105601305 A CN 105601305A CN 201511029657 A CN201511029657 A CN 201511029657A CN 105601305 A CN105601305 A CN 105601305A
- Authority
- CN
- China
- Prior art keywords
- chamotte
- fire
- parts
- magnesial
- fire clay
- 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.)
- Granted
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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
The invention provides novel magnesian fireproof fire clay and a preparing process thereof. The novel magnesian fireproof fire clay is prepared from, by weight, 1000 parts of magnesite fine powder, 6-15 parts of solid agglutinant and 80 parts of water. The preparing method includes the steps that all the materials are metered according to the formula ratio; a mixing mill is started, the magnesite fine powder, borax and dextrin are sequentially added, and the stirring time is not shorter than 10 min; ball milling is conducted on the materials mixed and stirred well for 15 min; water is added, the materials are fully and uniformly stirred into heavy paste to obtain the fireproof fire clay. The fireproof fire clay is free of bittern, is easier to prepare, higher in strength, more convenient to use and more environmentally friendly.
Description
Technical field
The present invention relates to a kind of magnesia fireproof chamotte and preparation technology thereof, this fire-resistant chamotte comprises magnesia powder and solid burnsThe refractory material that knot agent is mixed to form.
Background technology
The fire-resistant chamotte using is at present the refractory material being mixed by magnesia powder and halogen sheet, while use at the scene, needsHalogen sheet to be shifted to an earlier date to water and melt, more consuming time, and impracticable. In addition, halogen sheet is easy deliquescence in the time that humidity is larger, is difficult for storageDeposit. Be unsuitable for the needs of steel mill's actual production.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, provides a kind of magnesial fire-resistant chamotte, does not useBittern, makes simplyr, and intensity is higher, use more convenient, more environmental protection.
Technical solution of the present invention is that the fire-resistant chamotte of a kind of magnesial, is made up of the raw material of following weight portion: magnesia powder1000 parts, solid agglutinant 6-15 part, 80 parts, water.
Described magnesia powder is magnesite clinker fine powder (granularity < 1mm), and purity is 97%;
Described solid agglutinant is the mixing of dextrin and borax, and wherein dextrin and borax mass ratio are 1:2.
Described solid agglutinant is preferably 15 parts.
The preparation method of the fire-resistant chamotte of magnesial of the present invention is as follows:
(1) press formula rate, various materials are measured;
(2) start mixing roll, magnesia powder, borax, dextrin are added one by one, mixing time is not less than 10 minutes;
(3) by the material that mixes, is stirred, ball milling 15 minutes;
(4) add water, stir into thick paste fire-resistant chamotte.
The content of the granularity >=0.2mm of the fire-resistant chamotte of the present invention is≤5%, and the content that granularity is 0.2～0.088mm is 30～50%, granularity is≤content of 0.088mm is 50～70%.
The present invention has following beneficial effect:
(1) magnesia fireproof chamotte of the present invention is prepared easy to use: by above-mentioned technological process and controlled condition preparation,Simple to operation. When use, both can after Workshop Production envelope, transport steel mill to and use, also can ball milling good after at steel mill sceneBatch mixing adds water.
(2) magnesia fireproof chamotte of the present invention possesses good performance. It does not at room temperature solidify, and raises resistance to temperatureCompressive Strength improves. Overcome the problem of undercapacity under common bittern chamotte high temperature. Be particularly useful for using in steel mill's high temperature furnace.
(3) can improve overall performance and the service life of converter. Novel fire-resistant chamotte of the present invention is high temperature resistant, and temperature is higherIntensity is larger, can be good at like this protecting other resistance to materials, improves service life of refractory material, and then improves the overall performance of converter.
(4) do not use bittern, avoided the harm of bittern, do not injure health, yet more environmental protection.
Detailed description of the invention
Describe magnesia fireproof chamotte of the present invention in detail below in conjunction with embodiment.
Embodiment 1, the fire-resistant chamotte of a kind of magnesial, fill a prescription in table 1:
Table 1 magnesia fireproof chamotte formula of the present invention
Preparation method is:
(1) press formula rate, various materials are measured.
(2) start mixing roll, magnesia powder, borax, dextrin are added one by one, mixing time is not less than 10 minutes.
(3) by the material that mixes, is stirred, ball milling 15 minutes.
(4) add water, stir into thick paste fire-resistant chamotte.
By above-mentioned chamotte, to carry out chemical analysis and sizing and detect, testing result is as table 2:
Table 2 magnesia fireproof chamotte of the present invention testing result
Embodiment 2, fire-resistant the present invention chamotte and common bittern chamotte are compared
Common bittern chamotte used refers to the fire-resistant chamotte that this area routine is mixed by magnesia powder and bittern.
1, intensity contrast
1. common bittern chamotte: just can solidify at room temperature 2 hours, reduce with temperature rising compressive resistance, work as temperatureReach 400 DEG C and lasting more than 4 hours destrengthening.
2. chamotte of the present invention: at room temperature do not solidify, improve with temperature rising compressive resistance.
Concrete strength test result is as shown in table 3:
Table 3 chamotte intensity (MPa) contrast
| 110℃*24h | 200℃*3h | 400℃*3h | 600℃*3h | 800℃*3h | |
| Common bittern chamotte | 20 | 15 | 2 | 0 | 0 |
| Chamotte of the present invention | 4 | 5 | 8 | 12 | 18 |
As can be seen here, common bittern chamotte is along with the temperature strength decreased that raises, and more than 600 DEG C intensity reduces to zero. And thisBut in contrast, along with the rising of temperature, intensity is also more and more higher for naked light mud, has obtained surprising effect. The present invention gramTake the low shortcoming of common bittern chamotte elevated temperature strength, at high temperature shown unusual strength character, met steel mill highThe fire-resistant requirement of temperature stove.
2, use and preserve contrast
1. common bittern chamotte length standing time can be solidified, can only be now with existing batch mixing, mixed chamotte second day when useCan solidify and can not overnightly use, relatively waste. And enriched bittern cake need melt with hot water under low-temperature environment, cold water can not make it meltChange, cumbersome when use.
2. chamotte of the present invention does not at room temperature solidify, and both can after Workshop Production envelope, transport steel mill to and use, and also canAt the on-the-spot batch mixing of steel mill, and remaining chamotte can stay and use next time, utilizes fully, can not waste material. Use more squareJust.
3, feature of environmental protection contrast
1. common bittern chamotte Long contact time can make people's dry skin, and human body is had to certain injury.
2. chamotte of the present invention does not use bittern, has avoided the harm of bittern, does not injure health, more environmental protection yet.
Claims (5)
1. the fire-resistant chamotte of magnesial, is characterized in that, is made up of the raw material of following weight portion: 1000 parts of magnesia powders, GuBody agglutinant 6-15 part, 80 parts, water.
2. the fire-resistant chamotte of magnesial as claimed in claim 1, is characterized in that, described magnesia powder is magnesite clinker fine powder,Granularity < 1mm, purity is 97%.
3. the fire-resistant chamotte of magnesial as claimed in claim 1, is characterized in that, described solid agglutinant is dextrin and boraxMix, wherein dextrin and borax mass ratio are 1:2.
4. the fire-resistant chamotte of magnesial as claimed in claim 1, is characterized in that, described solid agglutinant is 15 parts.
5. the method for preparing the fire-resistant chamotte of magnesial described in claim 1-4, is characterized in that, step is as follows:
(1) press formula rate, various materials are measured;
(2) start mixing roll, magnesia powder, borax, dextrin are added one by one, mixing time is not less than 10 minutes;
(3) by the material that mixes, is stirred, ball milling 15 minutes;
(4) add water, stir into thick paste fire-resistant chamotte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029657.1A CN105601305B (en) | 2015-12-31 | 2015-12-31 | A kind of magnesia fireproof chamotte and its preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511029657.1A CN105601305B (en) | 2015-12-31 | 2015-12-31 | A kind of magnesia fireproof chamotte and its preparation technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105601305A true CN105601305A (en) | 2016-05-25 |
| CN105601305B CN105601305B (en) | 2018-03-09 |
Family
ID=55981736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511029657.1A Active CN105601305B (en) | 2015-12-31 | 2015-12-31 | A kind of magnesia fireproof chamotte and its preparation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105601305B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348776A (en) * | 2016-09-26 | 2017-01-25 | 北京利尔高温材料股份有限公司 | Novel high-viscosity high-fluidity magnesium refractory mortar |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101552A (en) * | 1987-05-13 | 1988-11-30 | 抚顺市耐火材料厂 | A kind of refractory clay with low thermal conductivity and manufacturing process thereof |
| CN1074202A (en) * | 1992-09-29 | 1993-07-14 | 洛阳耐火材料厂 | Magnesite refractory slurry |
| CN102617168A (en) * | 2012-04-01 | 2012-08-01 | 濮阳濮耐高温材料（集团）股份有限公司 | Wet process refractory mortar |
-
2015
- 2015-12-31 CN CN201511029657.1A patent/CN105601305B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101552A (en) * | 1987-05-13 | 1988-11-30 | 抚顺市耐火材料厂 | A kind of refractory clay with low thermal conductivity and manufacturing process thereof |
| CN1074202A (en) * | 1992-09-29 | 1993-07-14 | 洛阳耐火材料厂 | Magnesite refractory slurry |
| CN102617168A (en) * | 2012-04-01 | 2012-08-01 | 濮阳濮耐高温材料（集团）股份有限公司 | Wet process refractory mortar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348776A (en) * | 2016-09-26 | 2017-01-25 | 北京利尔高温材料股份有限公司 | Novel high-viscosity high-fluidity magnesium refractory mortar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105601305B (en) | 2018-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103964713B (en) | Flyash and Bayer process red mud is utilized to prepare the method for belite aluminosulfate cement | |
| CN113372134A (en) | Microporous light silica brick and preparation method thereof | |
| WO2019210729A1 (en) | Caulking gypsum powder and preparation method therefor, and harmless treatment method for phosphogypsum | |
| CN104291847B (en) | A kind of high intensity siliceous mullite brick and preparation method thereof | |
| CN105000854A (en) | Aerated concrete block production process | |
| CN102815920A (en) | Method for producing brick by sintering dried sludge, building waste soil and building rubbish | |
| CN108483953A (en) | A kind of low hydration heat copper ashes base composite gelled material and preparation method thereof | |
| CN102942381A (en) | Light building material prepared by using iron tailing and preparation method of light building material | |
| CN107324745A (en) | A kind of light wall material and preparation method thereof | |
| CN103833399A (en) | Anorthite light-weight refractory brick and preparation method thereof | |
| CN103979998B (en) | hollow foam ceramic plate and preparation method thereof | |
| CN102303975A (en) | Ultralow-porosity refractory brick and preparation method thereof | |
| CN105601305A (en) | Novel magnesian fireproof fire clay and preparing process thereof | |
| CN103409619A (en) | Cooled agglomerated pellet and preparation method thereof | |
| CN101781919A (en) | Low heat conduction light heat insulating silica brick | |
| CN107337429B (en) | Preparation method of ceramic curtain wall and foamed ceramic composite material | |
| CN104387096A (en) | Corundum spinel unburned brick for smelting steel ladle and preparation method of corundum spinel unburned brick | |
| CN106587866B (en) | A kind of environmental type masonry mortar | |
| CN106380095B (en) | A kind of preparation method of concrete for hydraulic structure phosphorus slag composite gelled material | |
| CN104724988A (en) | Novel lightweight porous coal gangue brick with sound absorption effect and preparation method thereof | |
| CN101531476A (en) | A preparation method for producing aluminate gelled material by ferro vanadium waste | |
| CN106699089A (en) | Novel energy-saving and environment-friendly waterproof plastering gypsum and preparation method thereof | |
| CN105330188A (en) | Magnesium oxysulfate gelling material early strength agent, and applications thereof | |
| CN102603316B (en) | Low-heat-conduction silicon mullite brick and preparation method thereof | |
| CN105036586A (en) | Iron-steel slag powder composite grinding aid and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |