Firebrick price: The burden recipe of every manufacturer deserves to compare different the price from hundreds of to thousands of on 10 thousand differ, for example Zhengzhou is able to bear or endure industrial limited company, of the manufacturing technology to firebrick and cost accuse very strict, of production in high-end firebrick, special get domestic and international large company reputably.
1, firebrick is the liner with kiln commonly used furnace actually, definite figure has been when be being used. About pouring a typical case of the patulous application of makings is steel the adventitious that uses on the bag fireproof and pouring the liner of makings develops. In principle, steel bag liner can be divided for adventitious model fireproof and pouring expect and finalize the design firebrick goods, material pledges for tall aluminium character (neuter) or alkalescent. With pouring expect the adventitious that makes is fireproof and pouring makings liner is main simple stuff of tall aluminium of bureau be confined to, finalize the design goods can be neuter or basic material. Had undertaken a large number of jobs be developed in order to try hard alkalescent and pouring makings, but had not gone up to be used successfully in steel bag up to now alkalescent and pouring the report of makings. Main problem is magnesia easy to hydrate, must choose new bond.
2, in finalize the design in goods, the certain and negative performance that is aimed at magnesia brick expands like heat lead the tall, aggressivity that fight broken bits difference, carbon was joined in constituent. Zuo is qualitative pouring join a quantity effectively of the carbon in makings to had not decided reasonably, this is one restricts MgO—C pouring the element that expects wide success is applied. However, mix as high-powered low cement super- low cement is pouring the development of makings, adventitious liner had acquired more and more significant position on steel bag. Tall aluminium is qualitative pouring makings and bag line change the technology that the technology already made a kind be used extensively. After the steel packet that has built in new step enlists in army, the surface inside bag line can be irrigated build new pouring makings. This program can repeat undertake a lot of times. Build with first step brand-new photograph of the technology that include line is compared, solid luggage line changes the wastage of steel bag material of the technology is 40%~50% , it is OK that this means this technology the lining material of managing 50%~60% . Compare with bricky line photograph, adventitious fireproof material can induce as follows as the advantage of liner: Reduce the labor power that build by laying bricks or stones builds and practice, raise the utilization rate that steel includes. Because reduce the steel in enlisting in army to include a measure, be used up because of what this reduced fireproof material and charge.
3,
According to firebrick composition different, its can be divided it is 5 kinds big, namely: Silicon aluminium fastens firebrick,
Basic set
The firebrick, firebrick that contain carbon, firebrick that contain zirconium, adiabatic firebrick. Use a kind of firebrick only and any furnace are not become, the mutual collocation that needs a different firebrick is used. This is faced below 5
The composition of kinds of big firebrick makes detailed introduction one by one.
One, silicon aluminium fastens firebrick, it is reported, its are with
AL2O3
Phasor of —SiO2 binary system is basic theory, basically include the following kinds.
1, silica brick, it is to point to the firebrick that contains SiO293% above, it is the main breed of acidity firebrick. It basically is used at build by laying bricks or stones to build Jiao Lu, the vault of the heat of hot project kiln that also is used at furnace of to calcine of element of all sorts of glass, pottery and porcelain, charcoal, firebrick and other bearing place, in
Hot-blast stove
high temperature bearings place also is used, but unfavorable it is under 600 ℃ and temperature wave motion is used in large hot project facility.
Argillaceous brick
, argillaceous brick is main by
Mo Laishi
(Photograph of 25% ～ 50%) , glass (25% ～ 60%) and
Fang Shiying
Reach quartz (highest can amount to 30% ) place composition. Normally with
Horniness clay
For raw material, beforehand to calcine becomes clinker, match next with
Soft qualitative clay
, with working a way partly may model law shapes, temperature is in 1300 ～ 1400 C is firing argillaceous brick goods. Also can add a few
Water glass
, cement
Bond
Make do not burn goods and indeterminate form material. It is blast furnace, hot-blast stove,
Heating furnace
, dynamical boiler,
Limekiln
,
Rotary kiln
, pottery and porcelain and firebrick are firing the commonly used firebrick in kiln.
Tall aluminous firebrick
, the mineral composition of tall aluminous firebrick is corundum, Molaishi and vitreous photograph, its content depends on AL2O3/ SiO2 is compared and the sort of foreign matter and amount, the order and degree that can have firebrick by AL2O3 content differentiates. Raw material is
Tall aluminium is aluminous
And
Silicon line stone
Kind natural ore, also mix into adds electric frit corundum,
Agglomeration alumina
,
Synthesize Molaishi
, and the grog that presses different scale to calcine with alumina and clay. It is multi-purpose agglomeration law production. But the product still has founding brick, frit bead brick, do not bake bricks and indeterminate form firebrick. Tall aluminous firebrick is used extensively at iron and steel industry,
Nonferrous metal industry
With other industry.
4, corundum firebrick,
Corundum brick
It is to show AL2O3 content is less than 90% , with a kind of firebrick that corundum gives priority to those who want content look, can divide for brick of agglomeration corundum brick and electric frit corundum.
2, basic set firebrick. Alkalescent firebrick is to point to with
Alkalescent oxide
If Mg0 and CaO give priority to those who want part
Refractory products
, main breed has the following kinds.
1, magnesian qualitative firebrick, it is to show with magnesium stone makes raw material, with
Square magnesian stone
Give priority to brilliant photograph, mgO content is in the firebrick of 85% above of 80% ～ . Its product component is metallurgy magnesia and magnesian simple product two kinds big. Those who depend on chemical composition and utility is different, have equestrian Ding Sha, common metallurgy
Magnesia
, common magnesia brick, magnesian silica brick,
Magnalium brick
, magnesian calcic brick,
Magnesian carbon brick
Etc breed. Magnesian qualitative firebrick is the mainest product in alkalescent firebrick, fireproof degree tall, have very good repellency to basic slag and iron broken bits, it is a kind of important advanced firebrick. Basically use at converter of open-hearth furnace, oxygen, electric stove and nonferrous metal fusion to wait.
Dolomite brick
, it is a kind of when produce as main raw material with dolomite alkalescent firebrick. Use extensively at alkalescent converter, still can use as certain
The fine outside furnace
The liner of the bag.
Magnesian olivine
Firebrick, it is a kind of firebrick that serves as main composition with magnesian olivine 2MgO·SiO2. Basically use brick, heating furnace with checker brick of regenerator of Yu Ping furnace, ingot casting hearth and in refine
Cupreous furnace
There also is better use effect in.
3, the firebrick that contain carbon. The firebrick that contain carbon is to point to what make by the compound of carbon or carbon, it is the firebrick goods of bases in order to contain the carbon of not isomorphic condition, main component is the following kinds.
1, carbolic brick, it is with carbon simple stuff is main raw material, what affiliation right amount bond makes is high temperature resistant neuter firebrick goods.
Carbolic brick
Be built at build by laying bricks or stones by wide application
Blast furnace hearth
, crucible, bosh and shaft bottom. Can increase the time of activity in series of blast furnace, prolong service life. In addition, carbolic brick is used extensively still at electrochemistry industry, chemical industry,
Petrochemical industry
,
Eletroplate industry
,
Ferroalloy
Industrial furnace
(Or the liner of equipment) , line of chamfer of acerbity fluid, lye and pipeline, and fusion nonferrous metal (wait like lead, aluminous, stannum) lining.
2,
Black lead
Qualitative refractory products, be with
Natural black lead
For raw material, make the fireproof material that bond makes with clay. This kind of goods has crucible of black lead clay, retort, cast steel to use brick of head of a place of strategic importance, water mouth brick to reach brick of line of bucket flourishing steel to wait. Produce the crucible of black lead clay that most, application is the widest is steel-making and fusion nonferrous metal among them.
Carborundum
Refractory products, be with carborundum (SiC) produces for raw material
Advanced and fireproof material
. Its wearability and corrosion resistance are good, high temperature strength is great, thermal conductance is tall,
Linear expansion coefficient
Small,
Fight thermal shock sex
Good. In steely smelt respect, it can use Yu Chenggang anhydrous of chamfer of hearth of head of mouth of bucket liner, water, a place of strategic importance, blast furnace and bosh, taphole, converter and mouth of electric stove tapping, heating furnace is cold the respect such as slippery course. In nonferrous metal (zinc, copper, aluminium) in smelt, a large number of at using
Alembic
,
Rectification tower
Tray,
Electrobath
Conduit of metal of side wall, melt, suck send pump and fusion metal crucible to wait. In silicate industry, it uses as in great quantities the refractory slab of all sorts of kiln furnace and the material that lie between blaze, be like
Muffle
Liner and
Saggar
Etc. In chemical industry, multi-purpose at furnace of to calcine of oil gas generator, organic waste material, oil
Aerification implement
Wait for a respect with desulphurization furnace. In addition, can use as on dimensional technique rocket spray pipe and high temperature
Light gas turbine
Blade.
4, the firebrick that contain zirconium. Belong to a kind to belong to acidity material, be with natural
Zirconium stone
Arenaceous (the product that ZrSiO2) makes for raw material. Zirconium pledges firebrick fastens firebrick and firebrick of the series that contain carbon unlike silicon aluminium, it is good that its fight broken bits sex, heat expands rate is minor, what thermal conductance follows temperature is elevatory and reduce, loading bate temperature is high, wear-resisting strength is great, heatproof shake sex is good, already made the important material in each industrial domains now. Take off the development of gas technology as the Lian Zhu in metallurgical industry and vacuum, the application of zirconium stone firebrick is wider and wider, basically have the following kinds of classification.
Zirconium stone brick
, in steelmaking process, use tapping to take off air standard, and zirconium stone pledges fireproof material is opposite slaggy, of molten steel be able to bear or endure aggressivity and heatproof shake sex are good, and comfortable work at be below decompression, it is used extensively in metallurgical industry at build by laying bricks or stones to build gas to use liner of bucket flourishing steel, also use as stainless steel fills steel tub liner, brick of brick of mouth of liner of tub of Lian Zhucheng steel, casting, head of a place of strategic importance, sleeve brick and high temperature
Electric induction furnace
Lining. Zirconium stone pledges firebrick has tall repellency to acid slag and glass, use extensively still at fusion consequently the serious damage place of the vitreous kiln of the most lively glass. Simple fireproof stuff still has zirconium stone to be
Metallic aluminium
, aluminous oxide reachs his the property of slaggy penetration, also achieved favorable result on the hearth of refine aluminium consequently.
2, brick of AZS report frit, also call
Brick of corundum of electric frit zirconium
, as the development of vitreous industry, brick of AZS report frit already was become
Vitreous kiln furnace
crucial position must fireproof material. The aggressivity of fluid of its resistance glass is stronger.
3, AZS again brick of agglomeration report frit, basically use at build by laying bricks or stones to build
Vitreous pool kiln
the hot project facilities such as bottom, wall and checker brick of accumulation of heat.
Zirconium Mo Laishi
Electric frit brick, the characteristic of this kinds of brick is crystal structure compact, loading bate temperature is high, heatproof shake sex is good, mechanical intensity is high below normal temperature and high temperature, wearability is good, thermal conductance is good, and have admirable resistance slaggy erodent ability. The use of this kinds of goods is more extensive, use at metallurgy heating furnace,
Soaking furnace
, a makings of calcium carbide furnace mouth,
Vitreous frit kiln
Kiln wall, use effect is very good.
5, adiabatic firebrick. It is to point to porosity density of tall, bulk the fireproof stuff with low, low thermal conductance. Adiabatic and fireproof data says again
Light simple fireproof stuff
. It includes the following kinds of classification.
1, tall aluminium is adiabatic
Light qualitative firebrick
. Be do not be less than the adiabatic light qualitative firebrick of 48% for main AL2O3 content with aluminous alumina. Its produce craft to use bubble method, also can use burn oneself out to add content way. Tall aluminous qualitative adiabatic light qualitative firebrick can be used at build by laying bricks or stones to build thermal insulation and erode without stock of melt of intense high temperature reach erode the place of action. When be being contacted with blaze directly, the temperature of watch surface contact of general tall aluminous qualitative adiabatic firebrick does not get prep above 1350 ℃ . Mo Laishi pledges adiabatic firebrick can contact blaze directly, have high temperature resistant, intensity is high, energy-saving effect is distinct wait for a characteristic. Apply to the furnace that heat up solution, hot-blast stove, pottery and porcelain
Roller path kiln
, kiln of electric porcelain drawer and the liner of all sorts of resistor furnace.
2, stick earthy and adiabatic light qualitative firebrick, it is the AL2O3 content that controls for main raw material with saggar is 30% ～ the adiabatic firebrick of 48% . Its produce craft to use burn oneself out to impose person doctrine and bubble standard. With saggar,
Float bead
, saggar grog makes raw material, mix into is added bond and curium wood chip, classics burden, mix, shape, dry, firing, make so that bulk density is 0. 3 ～ 1. The product of 5g/cm3. The crop that sticks earthy and adiabatic brick occupies the half above of adiabatic firebrick total output.
Chinese standard (GB 3994—1983) pledges clay adiabatic brick presses bulk density cent be NG—1.5, NG—1.3a, NG—1.3b, NG—1.0, NG—0.9, NG—0.8, NG—0.7, NG—0.6, NG—0.5, NG—0.4 10 to plant brand.
3,
Diatomite
Adiabatic light qualitative firebrick, make for main raw material with diatomite
Adiabatic and refractory products
. It basically is used in the thermal insulation under 900 ℃ .
Chinese standard (GB 3996—1983) presses goods of diatomite heat insolation bulk density cent to be GG—0.7a, GG—0. 7b, GG—0.6, GG—0. 5a, GG—0.5b and GG—0.4 6 kinds of brands.
4, bleach bead brick, be in order to float bead the adiabatic and fireproof product that makes for main raw material. Float bead be from
Heat and power plant
Fly ash
Float singles out in
Silicon acid is aluminous
Qualitative glass is hollow bead body. Its body light, wall thin, hollow, surface smooth, high temperature resistant, heat proof quality is good. Use float bead these good character, can make the light qualitative adiabatic and fireproof material with a heat preservation superior performance. Production bleachs bead brick to be able to be used
Half dry process
.
Fireproof material is in all applied domains, fireproof and pouring the share that stuff place holds increases continuously. However, certain application domain still belongs to firebrick goods only. Material of fire of skill of so called work is typical case. Here domain firebrick takes regnant place. For example, material of work skill fire has the effect that spreads to control steel in process of successive cast steel. In the applied domain of other, what have not develop a high quality is fireproof and pouring material data, because this firebrick goods still is first selection. The occasion that uses alkalescent and fireproof liner in great majority (dolomite is qualitative, magnesian qualitative, magnesian carbon is qualitative, magnesian chromium is qualitative) , the metropolis is preferential use firebrick products is refractory material. These material belong to the liner of converter, the brick of broken bits line that steel wraps, the boiler setting of electric stove, of cement rotary kiln firing take and transfer belt, smelt nonferrous metal (copper, lead, zinc) lining. Normally, traditional habit is having conclusive effect, this is why firebrick goods still is used at the furnace liner that designs according to the tradition.
5, latter, fireproof and pouring makings use not only make new adventitious fireproof liner, and be used as to repair by abundantly and safeguard the fireproof liner in enlisting in army. Fireproof and pouring makings have a variety of construction methods, include to have vibration and without vibration (do as one pleases expects) pouring, gush fills, pound hit and press a person. Means of a few construction has been become and will become continuously fireproof and pouring the main construction means of makings. According to traditional method, fireproof and pouring expect the hearth that is used as furnace of traditional electric arc (alkalescent and fireproof material) , channel of taphole of mud of prepare Chinese medicine by roasting it in a panbig gun, blast furnace and a few data that repair and maintain. In certain circumstance, the products with sophisticated appearance has been replaced by place of adventitious fireproof stuff, produced compound liner consequently.
6, the fundamental material that fireproof material is domain of high temperature technology. Sectional terribly of application is extensive. Apply among them most general is the structural material that regards counteractive high temperature as action in all sorts of hot project facilities and high temperature container and liner. In steely metallurgical industry, coking plant oven basically is made by fireproof material. The blast furnace of puddling reachs all sorts of hot-blast stove, steel-making furnace, soaking furnace, heating furnace to wait to cannot be short of those who accord with a requirement absolutely all sorts of fireproof material. Not only the modular casting of steel fluid should use up a large number of fireproof material,
Firebrick Lian Zhu needs a few high grade and fireproof data more. The fireproof material that the fine outside furnace does not have high grade breed also have no way comes true. Statistical result makes clear, iron and steel industry is to need the branch with fireproof most material, occupy the 60 ％ of fireproof material total output about. The igneous law smelt of nonferrous metal and its hot-working also cannot leave fireproof material. Etc of building materials industry produces the section of high temperature exercise of silicate goods, if vitreous industry, cement industry, ceramics industry is medium,kilns of all high temperature furnace or its liner must be built by fireproof material. Other the indispensible and fireproof material such as the igneous path of all sorts of roast furnace in if chemical industry, motivation, machinery is made,waiting for branch of exercise of industrial high temperature, sintering furnace, heating furnace, boiler and its have as an attached institution, chimney, covering layer. And crop of the argillaceous brick that uses natural raw material in great quantities, tall aluminous brick, zirconium stone brick is decreasing. Additional, the user is lengthened to fireproof material service life have higher demand, this respect is high pure synthetic raw material can satisfy need more. Be the closest development below have raw material of representative a few kinds of synthesis: The Molaishi that makes raw material become a ball to issue forge fire to become in high temperature next via extruding of wet and abrade vacuum with kaolin and industrial alumina base clinker, have good thermomechanical function, provide in kiln and fireproof data side has indeterminate form to apply foreground very well. The brick between firebrick is seamed, not only erode to run the infiltration of slag of condition of melt of the high temperature below condition to reach offerred a channel, and this kind of slag erodes itself to also make a brick seam increase ceaselessly. These two kinds of action, make slag and the surface of firebrick side surface contact increase, makeFirebrickBecause heat up the systole that cause to expand,circulate in every time in the process, make firebrick flank undergoes excessive stress. Slag is seamed in the brick in not only along radial, and return the circumferential direction along firebrick to erode action to furnace brick generation. Put when Zhou Xiang crackle in firebrick flank especially, zhou Xiang erodes speed faster, make firebrick surface produces lump to flake.
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