CN106542833A - A kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and preparation method thereof - Google Patents
A kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and preparation method thereof Download PDFInfo
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- CN106542833A CN106542833A CN201610884564.5A CN201610884564A CN106542833A CN 106542833 A CN106542833 A CN 106542833A CN 201610884564 A CN201610884564 A CN 201610884564A CN 106542833 A CN106542833 A CN 106542833A
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- garbage disposal
- cooled
- shock resistance
- brick
- heat shock
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Classifications
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9692—Acid, alkali or halogen resistance
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and preparation method thereof, which is made up of the raw material of following weight portion：Wollastonite 25 40, gypsum slag cement 41 53, chrome ore slag 19 31, sodium tungstate 6 12, stibnite 15 25, PAFC 10 15, andesite 22 34, natural manganese sand 16 29, sodium polyacrylate 11 18, kimberlite tailing 32 44, white jade stone 17 30, Konjac glucomannan 5 10, zirconium white residue 20 30.The raw materials such as the chrome ore slag for adding of the invention, sodium tungstate, stibnite, the thermal shock stability of refractory brick can be significantly improved, to resist destruction of the change of garbage disposal incinerator furnace temperature to material, the raw materials such as the andesite of addition, natural manganese sand, white jade stone, the acid-alkali-corrosive-resisting of refractory brick can be significantly improved, to resist the erosion of acid and alkali substance in garbage disposal incinerator stove.
Description
Technical field
The present invention relates to a kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and preparation method thereof, belongs to resistance to
Fiery Material Field.
Background technology
Refractory brick is the refractory material with definite shape and size being fired into refractory clay or other refractory raw materials,
It is resistant to 1580 DEG C -1770 DEG C of high temperature.Divide by process of preparing can be divided into be fired into bricks, unburned brick, fused cast refractories (founding
Brick), refratory insulating brick；Standard size brick, common brick, special shaped brick etc. can be divided into by shape and size.Refractory brick can be used as building
The high temperature construction material of kiln and various Thermal Equipments and structural material, and be amenable at high temperature various physicochemical change and
Mechanism.
The safe and reliable operation of incinerator depends greatly on the stability of refractory brick, in recent years, many
Incinerator all because refractory brick selection it is improper or it is unqualified cause blowing out event, cause certain damage to garbage burning factory
Lose.The gas that incinerator is produced when burning is (such as HCl, SO2、Cl2, CO and alkali metal gas etc.) aggressivity to refractory brick
It is stronger.Meanwhile, rubbish in high-temperature mobile to the thermal shock of some positions of incinerator (such as furnace bottom, blanking port and side wall etc.) compared with
Greatly, especially circulating fluid bed garbage furnace, rubbish and circulation bed are to burner hearth air distribution plate, combustion zone furnace wall, furnace outlet
It is more strong with the position thermal shock such as separator import.Therefore, this require refractory brick have excellent acid-alkali-corrosive-resisting and
Stability of shock resistance.
In recent years, domestic refractory brick production technology quickly grows, and occurs in that species is various, different properties fire resistings on market
Brick.China Patent No. is：200710062457.5 patent of invention disclose a kind of silica heat-proof firebrick, refractory brick of the present invention
By Silicon stone fine powder 81-85%, perlite 15-19%, the additional following adjuvant for accounting for above-mentioned main material gross weight：Iron scale powder 0.45-
0.55%, cement 0.9-1.1%, lime cream 6.5-7.5%, paper pulp 1.95-2.2% are constituted, and preparation technology is：Silicon stone is thin
Powder, perlite are proportionally added in wet stone roller, are subsequently adding iron scale powder, after cement dry milling 1-2 minute, added and account for main material gross weight
The water of 1.8-2.2%, is subsequently adding lime cream, rolls 10-15 minutes, is eventually adding paper pulp, rolls 10-15 minutes, goes out to grind, into
Type base.Although existing clay insulating refractory block is solved using refractory brick obtained in above-mentioned raw materials and technique and there is loading change
Easily shrink under shape temperature low and high temperature, the defect such as thermal conductivity is larger, heat insulation effect is bad, but its fire resistance, thermal-shock resistance and
Corrosion resistance still suffers from larger gap, it is impossible to meet the demand of export market compared with external refractory brick.
The content of the invention
Present invention aim at providing a kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and its preparation side
Method.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick, is made up of the raw material of following weight portion：Silicon ash
Stone 25-40, gypsum slag cement 41-53, chrome ore slag 19-31, sodium tungstate 6-12, stibnite 15-25, PAFC 10-
15th, andesite 22-34, natural manganese sand 16-29, sodium polyacrylate 11-18, kimberlite tailing 32-44, white jade stone 17-30, evil spirit
Taro glue 5-10, zirconium white residue 20-30.
A kind of garbage disposal incinerator preparation method of heat shock resistance corrosion-proof fire-resistant brick, is made up of the following steps：
(1) by wollastonite, kimberlite tailing, zirconium white residue mix homogeneously, crush, cross 80-100 mesh sieves, 860-910 DEG C is forged
1-2h is burnt, room temperature, 600-800r/min dry ball milling 10-20min, then according to solid-to-liquid ratio 1 is cooled to：4-6 is by after ball milling
Powder is added in the sulfuric acid solution that mass fraction is 25%, and to 60-70 DEG C, heat-insulation soaking 1-2h stands cooling to heating in water bath
After filter, filtering residue is washed with water to neutrality, according to solid-to-liquid ratio 1：It is 20% that filtering residue after washing is added to mass fraction by 5-7
In sodium hydroxide solution, 70-80 DEG C is heated to, heat-insulation soaking 2-3h stands cooled and filtered, and filtrate is passed through carbon dioxide
When being 7-8 to pH, carbon dioxide is closed, still aging 2-5h is filtered, and residue washing is clean, drying, 680-690 DEG C of temperature calcining
1-2h, is cooled to room temperature, stand-by；
(2) according to mass ratio 1:Raw material obtained in step (1) is mixed by 6-8 with the Alumina gel that solid content is 20%, fully
Stir, add the sodium hexameta phosphate of the polyvinyl alcohol and 8-14% equivalent to stock quality 14-18%, 600-700r/
Min dry ball milling 10-15min, then vacuum be 2-3Pa, temperature be -70～-80 DEG C under conditions of lyophilization 22-
28h, then in air atmosphere with the ramp of 5-8 DEG C/min to 880-960 DEG C, 3-6h is incubated, then with the speed of 4-6 DEG C/min
Rate is warming up to 1410-1460 DEG C, is incubated 2-4h, then is cooled to 450-500 DEG C with the speed of 7-10 DEG C/min, is incubated 5-8h, cold
But to room temperature, obtain refractory matter；
(3) by chrome ore slag, stibnite, andesite, natural manganese sand, white jade stone mix homogeneously, crush, after crossing 60-90 mesh sieves
Dry-mixed, mixing 8-10min is carried out with refractory matter obtained in step (2), appropriate water is subsequently adding, and is added remaining material to carry out
Wet mixing, mixes 6-8min；
(4) will be compressing in compound addition mould obtained in step (3), briquetting pressure is 20-30MPa, is taken off
Solarization water curing is carried out after mould, 5-10h is conserved once, conserved 15-20 days, then natural ring maintenance.
Beneficial effects of the present invention：
(1) present invention is by extracting silicon dioxide, Ran Houpei from the raw materials such as wollastonite, kimberlite tailing, zirconium white residue
Closing Alumina gel carries out lyophilization and high-temperature calcination, can obtain the refractory matter with mullite as main component, and the refractory matter adds
Enter in brick, the fire resistance of refractory brick can be greatly improved so that refractory brick remains to keep excellent combination property at high temperature,
The renewable resources for realizing the solid slags such as kimberlite tailing, zirconium white residue simultaneously are utilized, with important economic benefit and society
Can benefit；
(2) raw material such as the chrome ore slag of present invention addition, sodium tungstate, stibnite, can significantly improve the thermal shock of refractory brick
Stability, to resist destruction of the change of garbage disposal incinerator furnace temperature to material, the andesite of addition, natural manganese sand, white jade
The raw materials such as stone, can significantly improve the acid-alkali-corrosive-resisting of refractory brick, to resist acid and alkali substance in garbage disposal incinerator stove
Erosion.
Specific embodiment
A kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick, is made up of the raw material of following weight (kg)：Silicon
It is lime stone 32, gypsum slag cement 47, chrome ore slag 25, sodium tungstate 9, stibnite 20, PAFC 12, andesite 27, natural
Manganese sand 23, sodium polyacrylate 14, kimberlite tailing 38, white jade stone 23, Konjac glucomannan 7, zirconium white residue 25.
A kind of garbage disposal incinerator preparation method of heat shock resistance corrosion-proof fire-resistant brick, is made up of the following steps：
(1) by wollastonite, kimberlite tailing, zirconium white residue mix homogeneously, crush, cross 90 mesh sieves, 880 DEG C are calcined 1.5h,
It is cooled to room temperature, 700r/min dry ball milling 15min, then according to solid-to-liquid ratio 1：Powder after ball milling is added to quality point by 5
Number is for, in 25% sulfuric acid solution, to 65 DEG C, heat-insulation soaking 1.5h stands cooled and filtered to heating in water bath, and filtering residue is washed with water
To neutral, according to solid-to-liquid ratio 1：Filtering residue after washing is added in the sodium hydroxide solution that mass fraction is 20% by 6, is heated to
75 DEG C, heat-insulation soaking 2.5h, stand cooled and filtered, filtrate be passed through carbon dioxide to pH be 7.5 when, close titanium dioxide
Carbon, still aging 4h are filtered, and residue washing is clean, drying, 685 DEG C of temperature calcining 1.5h, are cooled to room temperature, stand-by；
(2) according to mass ratio 1:Raw material obtained in step (1) is mixed by 7 with the Alumina gel that solid content is 20%, is fully stirred
Mix uniform, add polyvinyl alcohol equivalent to stock quality 16% and 11% sodium hexameta phosphate, 650r/min dry ball millings
12min, then vacuum be 2.5Pa, temperature be -75 DEG C under conditions of lyophilization 26h, then in air atmosphere with 6 DEG C/
The ramp of min is incubated 4h to 920 DEG C, then with the ramp of 5 DEG C/min to 1430 DEG C, is incubated 3h, then with 9 DEG C/min
Speed be cooled to 480 DEG C, be incubated 7h, be cooled to room temperature, obtain refractory matter；
(3) by chrome ore slag, stibnite, andesite, natural manganese sand, white jade stone mix homogeneously, crush, with step after 70 mesh sieves excessively
Suddenly refractory matter obtained in (2) carries out dry-mixed, mixing 9min, is subsequently adding appropriate water, and adds remaining material to carry out wet mixing, mixes
Close 7min；
(5) will be compressing in compound addition mould obtained in step (3), briquetting pressure is 25MPa, after the demoulding
Solarization water curing is carried out, 8h is conserved once, conserved 16 days, then natural ring maintenance.
The performance test results of refractory brick obtained in above-described embodiment are as follows compared with external refractory brick performance parameter
Shown in table：
| External refractory brick | The refractory brick of above-described embodiment production | |
| Refractoriness, DEG C | 1770 | 1830 |
| Strength retention after 1350 DEG C of thermal shocks, % | 45 | 62 |
| Resistance to 20% hydrochloric acid solution (70 DEG C, 96h) | Corrosion-free phenomenon | Corrosion-free phenomenon |
| Resistance to 30% sodium hydroxide solution (70 DEG C, 96h) | Corrosion-free phenomenon | Corrosion-free phenomenon |
Claims (2)
1. a kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick, it is characterised in that by the raw material of following weight portion
Make：Wollastonite 25-40, gypsum slag cement 41-53, chrome ore slag 19-31, sodium tungstate 6-12, stibnite 15-25, polymerization chlorine
Change ferro-aluminum 10-15, andesite 22-34, natural manganese sand 16-29, sodium polyacrylate 11-18, kimberlite tailing 32-44, white jade
Stone 17-30, Konjac glucomannan 5-10, zirconium white residue 20-30.
2. preparation method of a kind of garbage disposal incinerator as claimed in claim 1 with heat shock resistance corrosion-proof fire-resistant brick, its
It is characterised by, is made up of the following steps：
（1）By wollastonite, kimberlite tailing, zirconium white residue mix homogeneously, crush, cross 80-100 mesh sieves, 860-910 DEG C of calcining 1-
2h, is cooled to room temperature, 600-800r/min dry ball milling 10-20min, then according to solid-to-liquid ratio 1：4-6 is by the powder after ball milling
It is added in the sulfuric acid solution that mass fraction is 25%, to 60-70 DEG C, heat-insulation soaking 1-2h stands mistake after cooling to heating in water bath
Filter, filtering residue is washed with water to neutrality, according to solid-to-liquid ratio 1：Filtering residue after washing is added to 5-7 the hydrogen-oxygen that mass fraction is 20%
Change in sodium solution, be heated to 70-80 DEG C, heat-insulation soaking 2-3h stands cooled and filtered, and filtrate is passed through carbon dioxide to pH
For 7-8 when, close carbon dioxide, still aging 2-5h is filtered, and residue washing is clean, drying, 680-690 DEG C of temperature calcining 1-2h,
Room temperature is cooled to, it is stand-by；
（2）According to mass ratio 1:6-8 is by step（1）Obtained raw material is mixed with the Alumina gel that solid content is 20%, is sufficiently stirred for
Uniformly, the sodium hexameta phosphate of the polyvinyl alcohol and 8-14% equivalent to stock quality 14-18%, 600-700r/min dry method are added
Ball milling 10-15min, then vacuum be 2-3Pa, temperature be lyophilization 22-28h under conditions of -70 ~ -80 DEG C, then in sky
With the ramp of 5-8 DEG C/min to 880-960 DEG C under gas atmosphere, insulation 3-6h, then with the ramp of 4-6 DEG C/min extremely
, 2-4h is incubated, then 450-500 DEG C is cooled to the speed of 7-10 DEG C/min, be incubated 5-8h, be cooled to room temperature by 1410-1460 DEG C,
Obtain refractory matter；
（3）By chrome ore slag, stibnite, andesite, natural manganese sand, white jade stone mix homogeneously, crush, with step excessively after 60-90 mesh sieves
Suddenly（2）Obtained refractory matter carries out dry-mixed, mixing 8-10min, is subsequently adding appropriate water, and it is wet to add remaining material to carry out
It is mixed, mix 6-8min；
（4）By step（3）Compressing in obtained compound addition mould, briquetting pressure is 20-30MPa, after the demoulding
Solarization water curing is carried out, 5-10h is conserved once, conserved 15-20 days, then natural ring maintenance.
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| CN201610884564.5A CN106542833A (en) | 2016-10-10 | 2016-10-10 | A kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and preparation method thereof |
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| CN201610884564.5A CN106542833A (en) | 2016-10-10 | 2016-10-10 | A kind of garbage disposal incinerator heat shock resistance corrosion-proof fire-resistant brick and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117602917A (en) * | 2024-01-22 | 2024-02-27 | 中建八局西南建设工程有限公司 | Solid waste base composite curing agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037345A (en) * | 2007-02-15 | 2007-09-19 | 中国科学院上海硅酸盐研究所 | Method for preparing mullite porous ceramic by gel refrigeration drying process |
| CN102211164A (en) * | 2011-05-13 | 2011-10-12 | 无锡德乾能源设备有限公司 | Application of refractory brick in casting field |
| CN105967696A (en) * | 2016-04-06 | 2016-09-28 | 安徽宏发节能设备有限公司 | Fireproof fired clay hollow brick and preparation method thereof |
-
2016
- 2016-10-10 CN CN201610884564.5A patent/CN106542833A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037345A (en) * | 2007-02-15 | 2007-09-19 | 中国科学院上海硅酸盐研究所 | Method for preparing mullite porous ceramic by gel refrigeration drying process |
| CN102211164A (en) * | 2011-05-13 | 2011-10-12 | 无锡德乾能源设备有限公司 | Application of refractory brick in casting field |
| CN105967696A (en) * | 2016-04-06 | 2016-09-28 | 安徽宏发节能设备有限公司 | Fireproof fired clay hollow brick and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117602917A (en) * | 2024-01-22 | 2024-02-27 | 中建八局西南建设工程有限公司 | Solid waste base composite curing agent and preparation method thereof |
| CN117602917B (en) * | 2024-01-22 | 2024-03-22 | 中建八局西南建设工程有限公司 | Solid waste base composite curing agent and preparation method thereof |
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