CN108395260A - The preparation method and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick - Google Patents
The preparation method and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick Download PDFInfo
- Publication number
- CN108395260A CN108395260A CN201810120475.2A CN201810120475A CN108395260A CN 108395260 A CN108395260 A CN 108395260A CN 201810120475 A CN201810120475 A CN 201810120475A CN 108395260 A CN108395260 A CN 108395260A
- Authority
- CN
- China
- Prior art keywords
- bonding agent
- magnesia
- soybean oil
- calcium brick
- synthesized
- 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
- 239000011575 calcium Substances 0.000 title claims abstract description 96
- 239000007767 bonding agent Substances 0.000 title claims abstract description 75
- 239000011449 brick Substances 0.000 title claims abstract description 72
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 31
- 239000003549 soybean oil Substances 0.000 claims abstract description 31
- 239000012188 paraffin wax Substances 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000011236 particulate material Substances 0.000 claims abstract description 8
- 238000012216 screening Methods 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 235000019580 granularity Nutrition 0.000 claims description 10
- 238000004898 kneading Methods 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 238000010304 firing Methods 0.000 abstract description 10
- 238000000465 moulding Methods 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- 244000068988 Glycine max Species 0.000 description 4
- 235000010469 Glycine max Nutrition 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 241001408630 Chloroclystis Species 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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)
Abstract
The present invention relates to the preparation methods and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick.Bonding agent is in 56~60 DEG C of semi-refined paraffin wax plus edible soybean oil.Preparation method includes：It is divided into the fine powder of 5~3mm, 3~1mm, the granularity of 1~0mm and≤0.074mm after the screening of I 20 Ca synthesized sands：II above-mentioned raw materials carry out weight proportion, various particles and fine powder 100~120, bonding agent 2.5~3 with bonding agent；III is kneaded the raw material in step II with bonding agent, and first dry-mixed experienced particulate material, adds bonding agent；It is kneaded into pug after the fine powder of≤0.074mm is added；Brickmaking base is thrown in the molding of IV hydraulic press, and adobe fills adobe kiln car；V adobe kiln-firing, 1500~1600 DEG C are calcined 4~6 hours；The product sampling Detection of VI kiln discharge.The physical index of this method magnesia-calcium brick simple for process being prepared into is higher.The fusing point dispersion effect that this bonding agent reduces paraffin bonding agent is preferable.
Description
Technical field
The present invention relates to the preparation methods and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick.
Background technology
Magnesia-calcium brick is the alkaline composite fireproof product using MgO and CaO as main chemical compositions.Magnesia-calcium brick has excellent make
With performance, especially there is purification molten steel performance, be not available for other class refractory materials.Magnesia-calcium brick is widely used in AOD
The inner lining material of the refining equipments such as stove, VOD stoves and LF stoves, subjects the chemical erosion of high temperature melting loss, clinker in use
And infiltration, clinker, molten steel and the strong erosive wear of air-flow, the requirement to bulk density and the porosity are all very strict.Both at home and abroad
The bonding agent that fired magnesia-calcium brick production uses is usually 56 ~ 60 DEG C of semi-refined paraffin wax, since the melting point of paraffin wax is higher, to mud
The temperature requirement of material is very stringent, and pug temperature, which must be heated to 60 DEG C or more the paraffin, to disperse well, equably wrap up
In particle surface and soak fine powder.But 60 DEG C or more of pug is due to being that will produce crackle when gas can not exclude to be molded in time
, in order not to molding crackle occur, it is necessary to increase cooling process and pug temperature is down to 45 DEG C or less moldings.It is traditional above
Production technology is molded using friction press, can obtain higher bulk density and the lower porosity, but technique is cumbersome multiple
It is miscellaneous, and manpower can be greatly increased, increase production cost, it is very impracticable for the moulding process of full-automatic brick machine.
For the continuity of production, often do not use cooling process, by pug temperature rise to 45 ± 2 DEG C discharging directly at
Type can form some small paraffin groups, cause bulk density low since the low paraffin dispersion effect of temperature is poor, and the porosity is high, is produced
The washing away of the anti-molten steel of magnesia-calcium brick, resistant to corrosion and high temperature capabilities it is poor, service life is affected.
Invention content
The technical problem to be solved by the present invention is to reduce the fusing point of paraffin bonding agent, bonding agent is made to mix at a lower temperature
Preferable dispersion effect magnesia-calcium brick can be reached by training.It is direct without cool material that it is a further object to provide a kind of pugs
The preparation method and its magnesia-calcium brick of molding magnesia-calcium brick.
Core of the invention is to add the bonding agent of edible soybean oil, followed by adds the preparation of the magnesia-calcium brick of edible soybean oil bonding agent
Method and magnesia-calcium brick.
The magnesia-calcium brick bonding agent of the present invention includes 56~60 DEG C of semi-refined paraffin wax, it is characterised in that also has edible beans
Oil, 56~60 DEG C of semi-refined paraffin wax and the weight proportion of edible soybean oil are：
56~60 DEG C of semi-refined paraffin wax industrial paraffin 10, edible soybean oil 1~3.
The present invention magnesia-calcium brick manufacturing method, include the steps that it is following successively：
I 20 Ca synthesized sands are broken：20 Ca synthesized sands are divided into 5~3mm, 3~1mm, 1 after jaw breaks machine, Ba Make crushing and screenings
The granularity of~0mm participates in dispensing, and extra dispensing is finely ground by ball mill≤and the fine powder of 0.074mm participates in dispensing；
20 Ca synthesized sand raw materials of II various granularities carry out dispensing with bonding agent containing edible soybean oil according to following weight proportion：
20 5~3mm of Ca synthesized sand particles 25~30,1~0mm particles 25~30, are less than or equal to 3~1mm particles 30~35
Fine powder 20~25, the bonding agent containing edible soybean oil 2.5~3 of 0.074mm；
III, by the various raw materials prepared in step II and bonding agent containing edible soybean oil, according to following charging sequence and is kneaded the time
Pug kneading is carried out in edge runner-wet mill：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 1~2 minute；
Edible soybean oil bonding agent will be contained, be added in edge runner-wet mill and be kneaded 2~3 minutes；The fine powder of≤0.074mm is added in edge runner-wet mill and is continued
It is kneaded 8~10 minutes and pug is made；Pug temperature discharges when reaching 45 DEG C ± 2 DEG C；
IV uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 12~13KN/cm2Between, adobe bulk density
2.98g/cm can be reached3±0.02g/cm3, neatly packed dress adobe kiln car, and reserve quirk；
V adobe kiln car enters tunnel oven and is fired, and inlet temperature controls between 500~700 DEG C, ensures knot containing edible soybean oil
Mixture adequately burns, and maximum temperature controls between 1500~1600 DEG C, and maximum temperature calcination time was controlled at 4~6 hours；
The product of VI kiln discharge requires to be sorted according to finished appearance, extracts sample and carries out physical index detection, index has volume
Density, apparent porosity, compressive resistance；Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=70MPa.
Magnesia-calcium brick with above-mentioned bonding agent is also the magnesia-calcium brick prepared in aforementioned manners, it is that raw material includes that 20 calcium close
At the refractory material that sand and bonding agent are fired into, it is characterized in that described bonding agent is bonding agent containing edible soybean oil, the synthesis of 20 calcium
The weight proportion of sand and the bonding agent containing edible soybean oil is：
20 Ca synthesized sands 100~120, bonding agent containing edible soybean oil 2.5~3；
MgO >=70% in wherein 20 Ca synthesized sands, CaO 18~22%, bulk density >=3.18g/ ㎝3。
A kind of above-mentioned magnesia-calcium brick, it is characterized in that：Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance
≥70MPa。
Beneficial effects of the present invention
Add the magnesia-calcium brick indices that soya-bean oil bonding agent produces to be substantially better than existing pure 56~60 DEG C of semi-refined paraffin wax to combine
It is basic to be kneaded the magnesia-calcium brick index that temperature is produced using cooling process with traditional raising for the index of the magnesia-calcium brick of agent production
Quite.Using addition soya-bean oil in 56~60 DEG C of semi-refined paraffin waxs as the bonding agent of magnesia-calcium brick, compared with traditional technique,
The cooling process for reducing magnesia-calcium brick production, has saved human cost, physical index can also reach the level of traditional handicraft.This hair
Bright magnesia-calcium brick bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=70MPa.
Specific implementation mode
With reference to the embodiment specific implementation mode that the present invention will be described in detail.With reference to embodiment to the specific reality of the present invention
The mode of applying further illustrates.The explanation of the following examples is contributed to understand the present invention, but is not the limit to the present invention
System.Involved technical characteristic as long as they do not conflict with each other can be mutual group in each embodiment disclosed below
Cheng He.
Bonding agent embodiment one
The parts by weight of its component are：
56~60 DEG C of 10 parts of semi-refined paraffin wax, 1 part of edible soybean oil.Every part is prepared according to 100 kilograms.
Bonding agent embodiment two
The parts by weight of its component are：
56~60 DEG C of 10 parts of semi-refined paraffin wax, 1.5 parts of edible soybean oil.Every part is prepared according to 100 kilograms.
Bonding agent embodiment three
The parts by weight of its component are：
56~60 DEG C of 10 parts of semi-refined paraffin wax, 3 parts of edible soybean oil.Every part is prepared according to 100 kilograms.
Magnesia-calcium brick preparation method embodiment one
The present embodiment include the steps that it is following successively：
I 20 Ca synthesized sand raw materials are crushed：20 Ca synthesized sands be divided into after jaw breaks machine, Ba Make crushing and screenings 5~3mm, 3~
1mm, 1~0mm granularity participate in dispensing, extra dispensing is finely ground by ball mill≤fine powder of 0.074mm participates in dispensing.
20 Ca synthesized sands of II various granularities carry out dispensing with the bonding agent of embodiment one according to following weight part ratio：
20 25 parts of 5~3mm of Ca synthesized sand particles, 30 parts of 3~1mm particles, 25 parts of 1~0mm particles, the fine powder 20 of≤0.074mm
Part, 2.5 parts of bonding agent.Wherein every part is 10 kilograms.
III by the various raw materials prepared in step II and bonding agent containing edible soybean oil according to following charging sequence and kneading when
Between in edge runner-wet mill carry out pug kneading：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 1 minute；It will
Bonding agent containing edible soybean oil is added in edge runner-wet mill and is kneaded 2 minutes；General≤0.074mm fine powders, which are added in edge runner-wet mill, to be continued to be kneaded 8 points
Pug is made in clock；Pug temperature discharges when reaching 45 DEG C ± 2 DEG C, waits to be formed.
IV uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 12KN/cm2, adobe bulk density can
Reach 2.98g/cm3±0.02g/cm3, neatly packed dress adobe kiln car, and quirk is reserved, it waits for and being burnt into tunnel oven.
V adobe kiln car enters tunnel oven and is fired, and inlet temperature is controlled at 530 ± 30 DEG C, ensures that bonding agent adequately fires
It burns, at 1520 ± 20 DEG C, maximum temperature calcination time was controlled at 4.5 ± 0.5 hours the control of firing maximum temperature.
The adobe of VI kiln discharge requires to be sorted according to finished appearance, extracts sample and carries out physical index detection, physics and chemistry inspection
It tests and is extracted generally according to 300 tons of one group of samples（3 pieces of bricks are extracted in every 300 tons carries out physical index detection）, index has body
Product density, apparent porosity, compressive resistance；Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=70MPa.
Magnesia-calcium brick preparation method embodiment two
The present embodiment include the steps that it is following successively：
I is identical as the step of embodiment of the method one I.
20 Ca synthesized sands of II various granularities carry out dispensing with the bonding agent of embodiment two according to following weight part ratio：
20 27 parts of 5~3mm of Ca synthesized sand particles, 33 parts of 3~1mm particles, 27 parts of 1~0mm particles, the fine powder 23 of≤0.074mm
Part, 2.75 parts of bonding agent.
The various raw materials prepared in step II and edible soybean oil bonding agent according to following charging sequence and are kneaded the time by III
Pug kneading is carried out in edge runner-wet mill：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 1.5 minutes；It will
Edible soybean oil bonding agent is added in edge runner-wet mill and is kneaded 2.5 minutes；General≤0.074mm fine powders, which are added in edge runner-wet mill, to be continued to be kneaded 9 points
Pug is made in clock；Pug temperature discharges when reaching 45 DEG C ± 2 DEG C, waits to be formed.
IV uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 12KN/cm2, adobe bulk density can
Reach 2.98g/cm3±0.02g/cm3, neatly packed dress adobe kiln car, and quirk is reserved, it waits for and being burnt into tunnel oven.
V adobe kiln car enters tunnel oven and is fired, and inlet temperature is controlled at 600 ± 30 DEG C, ensures that bonding agent adequately fires
It burns, at 1550 ± 20 DEG C, maximum temperature was sintered into time control at 5 ± 0.5 hours for firing maximum temperature control.
The adobe of VI kiln discharge requires block block to be sorted according to finished appearance, extracts sample and carries out physical index detection, reason
Change to examine and be extracted generally according to 300 tons of one group of samples（3 pieces of bricks are extracted in every 300 tons carries out physical index detection）, index
There are bulk density, apparent porosity, compressive resistance；Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=
70MPa.All meet manufacture to require.
Magnesia-calcium brick preparation method embodiment three
The present embodiment include the steps that it is following successively：
I is identical as the step of embodiment of the method one I.
20 Ca synthesized sands of II various granularities carry out dispensing with the bonding agent of embodiment three according to following weight part ratio：
20 30 parts of 5~3mm of Ca synthesized sand particles, 35 parts of 3~1mm particles, 30 parts of 1~0mm particles, the fine powder 25 of≤0.074mm
Part, 3 parts of bonding agent.
The various raw materials prepared in step II are carried out mud by III according to following charging sequence and kneading time in edge runner-wet mill
Material is kneaded：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 2 minutes；The bonding agent containing soya-bean oil that will be prepared
It is added in edge runner-wet mill and is kneaded 3 minutes；By weigh up≤0.074mm fine powders be added edge runner-wet mill in continue be kneaded 10 minutes；Pug temperature
Degree discharges when reaching 45 DEG C ± 2 DEG C, waits to be formed.
IV uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 13KN/cm2, adobe bulk density can
Reach 2.98g/cm3±0.02g/cm3, neatly packed dress adobe kiln car, and quirk is reserved, it waits for and being burnt into tunnel oven.
V adobe kiln car enters tunnel oven and is fired, and inlet temperature is controlled at 670 ± 30 DEG C, ensures that bonding agent adequately fires
It burns, at 1580 ± 20 DEG C, maximum temperature was sintered into time control at 5.5 ± 0.5 hours for firing maximum temperature control.
The adobe of VI kiln discharge requires to be sorted according to finished appearance, extracts sample and carries out physical index detection, physics and chemistry inspection
It tests and is extracted generally according to 300 tons of one group of samples（3 pieces of bricks are extracted in every 300 tons carries out physical index detection）, index has body
Product density, apparent porosity, compressive resistance；Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=70MPa.All
Meet manufacture to require.
Magnesia-calcium brick preparation method example IV
The present embodiment include the steps that it is following successively：
I is identical as the step of embodiment of the method one I；
20 Ca synthesized sands of II various granularities carry out dispensing with the bonding agent of embodiment two according to following weight part ratio：
20 30 parts of 5~3mm of Ca synthesized sand particles, 30 parts of 3~1mm particles, 30 parts of 1~0mm particles, the fine powder 20 of≤0.074mm
Part, 2.5 parts of bonding agent.
The various raw materials prepared in step II are carried out mud by III according to following charging sequence and kneading time in edge runner-wet mill
Material is kneaded：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 1 minute；The bonding agent containing soya-bean oil that will be prepared
It is added in edge runner-wet mill and is kneaded 2 minutes；By weigh up≤0.074mm fine powders be added edge runner-wet mill in continue be kneaded 8 minutes；Pug temperature
It discharges, waits to be formed when reaching 45 DEG C ± 2 DEG C.
IV uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 13KN/cm2, adobe bulk density can
Reach 2.98g/cm3±0.02g/cm3, neatly packed dress adobe kiln car, and quirk is reserved, it waits for and being burnt into tunnel oven.
V adobe kiln car enters tunnel oven and is fired, and inlet temperature is controlled at 670 ± 30 DEG C, ensures that bonding agent adequately fires
It burns, at 1520 ± 20 DEG C, maximum temperature was sintered into time control at 4.5 ± 0.5 hours for firing maximum temperature control.
The adobe of VI kiln discharge requires block block to be sorted according to finished appearance, extracts sample and carries out physical index detection, reason
Change to examine and be extracted generally according to 300 tons of one group of samples（3 pieces of bricks are extracted in every 300 tons carries out physical index detection）, index
There are bulk density, apparent porosity, compressive resistance；Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=
70MPa meets manufacture and requires.
Magnesia-calcium brick implements one
It is that the raw material that following weight matches is fired into；
20 100 parts of Ca synthesized sand, 2.5 parts of bonding agents；
It is the magnesia-calcium brick of above-mentioned preparation method embodiment one, and the magnesia-calcium brick prepared with bonding agent embodiment one.
MgO >=70%, CaO 18~22% in wherein 20 Ca synthesized sands；Bulk density >=3.02g/ of magnesia-calcium brick after firing
㎝3, apparent porosity≤12%, compressive resistance >=70MPa.
Magnesia-calcium brick implements two
It is that the raw material that following weight matches is fired into
20 110 parts of Ca synthesized sand, 2.75 parts of bonding agents；
It is the magnesia-calcium brick of above-mentioned preparation method embodiment two.It is also the magnesia-calcium brick prepared with bonding agent embodiment two.
MgO >=70%, CaO 18~22% in wherein 20 Ca synthesized sands；Bulk density >=3.02g/ of magnesia-calcium brick after firing
㎝3, apparent porosity≤12%, compressive resistance >=70MPa.
Magnesia-calcium brick implements three
It is that the raw material that following weight matches is fired into
20 120 parts of Ca synthesized sand, 3 parts of bonding agents；
It is the magnesia-calcium brick of above-mentioned preparation method embodiment three.It is also the magnesia-calcium brick prepared with bonding agent embodiment three.
MgO >=70%, CaO 18~22% in wherein 20 Ca synthesized sands；Bulk density >=3.02g/ of magnesia-calcium brick after firing
㎝3, apparent porosity≤12%, compressive resistance >=70MPa.
Magnesia-calcium brick implements four
It is that the raw material that following weight matches is fired into：
20 110 parts of Ca synthesized sand, 2.5 parts of bonding agents；
It is the magnesia-calcium brick of above-mentioned preparation method example IV.It is also the magnesia-calcium brick prepared with bonding agent embodiment two.
MgO >=70%, CaO 18~22% in wherein 20 Ca synthesized sands；Bulk density >=3.02g/ of magnesia-calcium brick after firing
㎝3, apparent porosity≤12%, compressive resistance >=70MPa.
The comparative example of existing magnesia-calcium brick preparation method
The present embodiment include the steps that it is following successively：
56~60 DEG C of semi-refined paraffin wax is heated to 95 ± 2 DEG C by I is sufficiently stirred thawing, as paraffin refined wax bonding agent.
II is identical as the step of embodiment of the method one II.
20 Ca synthesized sands of III various granularities carry out dispensing with paraffin refined wax bonding agent according to following weight part ratio：
20 27 parts of 5~3mm of Ca synthesized sand particles, 33 parts of 3~1mm particles, 27 parts of 1~0mm particles, the fine powder 23 of≤0.074mm
Part, 2.75 parts of paraffin refined wax bonding agent.
The various raw materials prepared in step III are carried out mud by IV according to following charging sequence and kneading time in edge runner-wet mill
Material is kneaded：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 1.5 minutes；Paraffin refined wax bonding agent is added
It is kneaded 2.5 minutes in edge runner-wet mill；By weigh up≤0.074mm fine powders be added edge runner-wet mill in continue be kneaded 9 minutes；Pug temperature reaches
It discharges, waits to be formed when to 45 DEG C ± 2 DEG C.
V uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 13.5KN/cm2, adobe bulk density energy
Enough reach 2.93g/cm3±0.02g/cm3, neatly packed dress adobe kiln car, and quirk is reserved, it waits for and being burnt into tunnel oven.
VI adobe kiln car enters tunnel oven and is fired, and inlet temperature is controlled at 600 ± 30 DEG C, ensures that bonding agent is sufficient
Burning, at 1550 ± 20 DEG C, maximum temperature was sintered into time control at 5 ± 0.5 hours for firing maximum temperature control.
The adobe of VII kiln discharge requires to be sorted according to finished appearance, extracts sample and carries out physical index detection, physics and chemistry inspection
It tests and is extracted generally according to 300 tons of one group of samples（3 pieces of bricks are extracted in every 300 tons carries out physical index detection）, index has body
Product density, apparent porosity, compressive resistance；Bulk density 2.97g/cm3, apparent porosity 13.2%, compressive resistance 78MPa.Skill
Physical and chemical inspection result of the art parameter significantly lower than the present invention.
Claims (4)
1. a kind of magnesia-calcium brick bonding agent, includes 56~60 DEG C of semi-refined paraffin wax, it is characterised in that also have edible soybean oil, 56
~60 DEG C of semi-refined paraffin wax and the weight proportion of edible soybean oil are：
56~60 DEG C of semi-refined paraffin wax industrial paraffin 10, edible soybean oil 1~3.
2. a kind of manufacturing method of magnesia-calcium brick with claim 1 bonding agent, include the steps that it is following successively：
I 20 Ca synthesized sands are broken：20 Ca synthesized sands are divided into 5~3mm, 3~1mm, 1 after jaw breaks machine, Ba Make crushing and screenings
The granularity of~0mm participates in dispensing, and extra dispensing is finely ground by ball mill≤and the fine powder of 0.074mm participates in dispensing；
20 Ca synthesized sand raw materials of II various granularities carry out dispensing with bonding agent containing edible soybean oil according to following weight proportion：
20 5~3mm of Ca synthesized sand particles 25~30
3~1mm particles 30~35
1~0mm particles 25~30
Fine powder 20~25 less than or equal to 0.074mm, bonding agent containing edible soybean oil 2.5~3；
III, by the various raw materials prepared in step II and bonding agent containing edible soybean oil, according to following charging sequence and is kneaded the time
Pug kneading is carried out in edge runner-wet mill：5~3mm, 3~1mm, 1~0mm particulate materials are first added in edge runner-wet mill dry-mixed 1~2 minute；
Edible soybean oil bonding agent will be contained, be added in edge runner-wet mill and be kneaded 2~3 minutes；The fine powder of≤0.074mm is added in edge runner-wet mill and is continued
It is kneaded 8~10 minutes and pug is made；Pug temperature discharges when reaching 45 DEG C ± 2 DEG C；
IV uses 2000 tons of Full Automatic Liquid press mould brick bases, pressure to be set in 12~13KN/cm2Between, adobe bulk density
2.98g/cm can be reached3±0.02g/cm3, neatly packed dress adobe kiln car, and reserve quirk；
V adobe kiln car enters tunnel oven and is fired, and inlet temperature controls between 500~700 DEG C, ensures knot containing edible soybean oil
Mixture adequately burns, and maximum temperature controls between 1500~1600 DEG C, and maximum temperature calcination time was controlled at 4~6 hours；
The product of VI kiln discharge requires to be sorted according to finished appearance, extracts sample and carries out physical index detection, index has body
Product density, apparent porosity, compressive resistance；Bulk density >=3.02g/cm3, apparent porosity≤12%, compressive resistance >=70MPa.
3. a kind of magnesia-calcium brick with claim 1 bonding agent, it is that raw material includes that 20 Ca synthesized sands are fired into bonding agent
Refractory material, it is characterized in that described bonding agent is bonding agent containing edible soybean oil, 20 Ca synthesized sands and bonding agent containing edible soybean oil
Weight proportion be：
20 Ca synthesized sands 100~120, bonding agent containing edible soybean oil 2.5~3；
MgO >=70% in wherein 20 Ca synthesized sands, CaO 18~22%, bulk density >=3.18g/ ㎝3。
4. a kind of magnesia-calcium brick according to claim 3, it is characterized in that：Bulk density >=3.02g/cm3, apparent porosity≤
12%, compressive resistance >=70MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120475.2A CN108395260A (en) | 2018-02-07 | 2018-02-07 | The preparation method and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810120475.2A CN108395260A (en) | 2018-02-07 | 2018-02-07 | The preparation method and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108395260A true CN108395260A (en) | 2018-08-14 |
Family
ID=63095369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810120475.2A Pending CN108395260A (en) | 2018-02-07 | 2018-02-07 | The preparation method and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108395260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943692A (en) * | 2020-06-30 | 2020-11-17 | 辽宁东和新材料股份有限公司 | High-performance magnesia-calcium brick and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058678A (en) * | 2012-12-27 | 2013-04-24 | 浙江金磊高温材料股份有限公司 | High-density ultrahigh-purity magnesia-calcium brick and preparation method thereof |
-
2018
- 2018-02-07 CN CN201810120475.2A patent/CN108395260A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058678A (en) * | 2012-12-27 | 2013-04-24 | 浙江金磊高温材料股份有限公司 | High-density ultrahigh-purity magnesia-calcium brick and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 包彦坤等: "《熔模铸造技术》", 30 November 1997, 浙江大学出版社 * |
| 李云凯，周张健编著: "《陶瓷及其复合材料》", 31 August 2007, 北京理工大学出版社 * |
| 章秦娟: "《陶瓷工艺学》", 31 March 1997, 武汉工业大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943692A (en) * | 2020-06-30 | 2020-11-17 | 辽宁东和新材料股份有限公司 | High-performance magnesia-calcium brick and preparation method thereof |
| CN111943692B (en) * | 2020-06-30 | 2022-05-10 | 辽宁东和新材料股份有限公司 | High-performance magnesia-calcium brick and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101439979B (en) | High refractoriness under load and thermal shock resistant fireproof brick | |
| CN103588491B (en) | High-strength baking-free flint clay-mullite spray coating as well as preparation and using methods thereof | |
| CN105645979A (en) | Steel ladle air brick and manufacturing method thereof | |
| CN111362674B (en) | Acid-resistant corundum ramming mass and method for manufacturing acid regenerator nozzle by using same | |
| CN104692820B (en) | What a kind of high temperature was fine and close does not burns composite brick and moulding process thereof | |
| JPS6024068B2 (en) | Method for producing spalling-resistant dense refractories | |
| CN104555982A (en) | Method for calcining high sulfur petroleum coke and special pot calciner and pot wall tile | |
| CN105777151A (en) | Magnesium aluminate spinel refractory material containing manganese and preparing method thereof | |
| CN103373856B (en) | High-stress-strain low-creepage high-thermal-shock-resistance refractory brick and manufacturing method thereof | |
| CN111233437A (en) | Preparation method of non-efflorescence high-doping-amount red mud sintered brick | |
| CN109574639A (en) | High thermal shock resistance corundum-mullite brick and preparation method thereof | |
| CN113233908A (en) | Regenerated carbon-free brick and preparation method thereof | |
| CN106747594A (en) | A kind of preparation method of light microporous magnesia raw material | |
| CN107056200A (en) | A kind of method for preparing environment friendly pervious brick using industrial melting waste slag | |
| CN1050591C (en) | Fired microporous carbon-aluminium brick | |
| CN104193370B (en) | A kind of preparation method of ladle carbon free precast block | |
| CN102180690B (en) | Method for producing Al2O3-MgO brick by using Al2O3-MgO-CaO synthetic fireproof raw material | |
| JPH08283073A (en) | Kiln tool | |
| CN111960805A (en) | Thermal shock resistant magnesium sliding brick and production method thereof | |
| CN108395260A (en) | The preparation method and magnesia-calcium brick of a kind of magnesia-calcium brick bonding agent and its magnesia-calcium brick | |
| US3008842A (en) | Basic refractory insulating shapes | |
| CN111943692B (en) | High-performance magnesia-calcium brick and preparation method thereof | |
| CN110028313B (en) | Corundum crucible and preparation method thereof | |
| CN107324824A (en) | A kind of BOF Hood tar combination magnesia-alumina brick and preparation method thereof | |
| CN107311674B (en) | Special sprue pipe for casting and preparation 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 |
Application publication date: 20180814 |
|
| RJ01 | Rejection of invention patent application after publication |