What does Henan manufacturer insulation material have?

Henan is base of production of fireproof material, insulation material, sort is more all ready, have: Heat preservation brick, heat preservation is pouring the goods such as cotton of blanket of makings, heat preservation, heat preservation.


Heat preservation products differs according to composition, insulation material can be divided for organic material and inorganic material two kinds big. Average low temperature protects cold project to use organic insulation material more, this kind of insulation material has density small, thermal conductance origin of low, raw material is not wide, high temperature resistant, moisture absorption, not easy the equipment of characteristic; heating power such as decay and conduit use inorganic insulation material more, this kind of insulation material is had not easy decay, flame retardant and high temperature resistant wait for a characteristic.
The sort of Henan manufacturer insulation material is very much, differ according to using temperature, can divide for high temperature (1200 ℃ above) insulation material, medium lukewarm (900~1100 ℃ ) insulation material, low temperature (900 ℃ are the following) insulation material 3 kinds big. Insulation material of 1 high temperature pledges tall aluminous brick, light qualitative alumina pledges brick, gently brick of light qualitative clay, gently silica brick, alumina is fireproof and hollow all sorts of ball brick, fireproof fiber all belong to high temperature insulation material.
2, in 2.1 exceed lukewarm insulation material to pledge pearlite goods exceeds product of light qualitative pearlite gently is pass to calcine by natural cliff, after bulk expands greatly, a kind of gets density is very small (can small to 60 Kg/rr13) advanced insulation material, this kind of material can be used as powdery makings (fill up between body of furnace build by laying bricks or stones and furnace casing) , but majority adds the cementing agent such as water glass, cement or phosphoric acid, via shaping, firing wait for working procedure, make heat preservation brick or heat preservation bead use. Had come with the function of brick of pearlite heat preservation of phosphoric acid cementation, use temperature can amount to 1000 ℃ , density has 200kg/m3 only, coefficient of thermal conductivity is very small also (0. 05+0.29×10tW/(m· ℃ ) ) . The brick of pearlite heat preservation that uses cement and water glass cementation is fireproof degree poorer, former use temperature is 800 ℃ , latter is 650 ℃ .
2.2 vermiculite vermiculite is an appearance mineral like mica, its chemistry composition is (MgFe)2. (H20)2. (SiAIFe)4010. 4H20, melting point is 1300~1370 ℃ . Vermiculite is mineral the bulk when heating expands greatly, become bulk density very small (0.1~0. The inattentive stock of 3g/cm3) , call expand vermiculite. Its permission works temperature can amount to 1000 AC, coefficient of thermal conductivity is very small (0.05~0.06W/(m· ℃ ) ) , it is a kind of good insulation material.
Expand vermiculite matchs with right amount aluminous cement, water glass or bitumen make cementing agent, can make heat preservation brick use. But the affiliation as a result of cementing agent, performance characteristics is reduced somewhat. If the use temperature of brick of water glass vermiculite drops,be 800 ℃ , coefficient of thermal conductivity is 0. 08~0.10W/(m· ℃ ) , bulk density rises for 0.4~0.45g/cm3. Bulk density is big, body of furnace build by laying bricks or stones absorbs quantity of heat big, loss of accumulation of heat is small.
Brick of 2.3 light qualitative clay
The bulk density of the clay brick such as light qualitative tall aluminous brick is 0.3~0. 4g/cm3, coefficient of thermal conductivity is 0. 23W/(m· ℃ ) , be very good in lukewarm insulation material.
Insulation material of 3 low temperature 3.1 diatomite diatomite is alga machine a kind when form after content is corrupt in the lithosphere poriferous and mineral, its bases is Si02, contain the impurity such as a few clay.
The bulk density that diatomite pink expects is 0.6~0. 68g/cm3, coefficient of thermal conductivity is when 500 ℃ 0. 186~0. 23W/(m· ℃ ) , can make material of heat preservation fill.
Exceed the diatomite brick grog that pledges diatomite brick passes with to calcine normally gently to give priority to, add unripe diatomite or clay to make bond be made again, with the brick that clinker makes, remains of the bulk when using is contractive and lesser. Cent of diatomite insulation material is class of A, B, C3, class A performance has come, density is (500±50) Kg/m3, apparent pore rate is 78. 3% , coefficient of thermal conductivity is (0.07+0. 21) X10 -3t. The use temperature of the diatomite brick of 3 kinds of grade all is under 900 ℃ , heat preservation performance is poorer than vermiculite. The serpentine that 3.2 asbestine asbestine is the fiber structure that have pliable but strong and bears fruit or amphibole kind mineral, its chemistry is comprised is magnesium, iron and partial calcium and natrium the hydrous silicate that wait, structural formula is 3Mg0.2Si02·2H20. Asbestine has lesser bulk density and thermal conductivity, the bulk density of pink of consistent class asbestine is in 0. 6g/crj13 is the following, coefficient of thermal conductivity is less than 0. U7W/(m· ℃ ) , it is the stuff with heat preservation better performance. But the heat-resisting of asbestine is spent poorer, 500 ℃ begin to lose crystallization water and bring about intensity to reduce; Heat become contractive when 700~ 800C.
The task of construction of common heat preservation of craft of insulation material construction is set according to the design will advocate layer insulation material, fill strong data and facing material combination become heat preservation structure. Current, craft of commonly used construction of heat preservation structure has the following 7 kinds. (Heat preservation of 1) daub law. Use adventitious insulation material (if expand pearlite) join binder and hurried to coagulate agent, according to certain burden scale, add cement agitate even, make plasticity mud group, daub arrives on facilities of heat preservation pipeline. Daub law heat preservation is a kind of traditional heat preservation structure and craft, the place that facilitates the construction that receive fork, hole that fill fill, equipment and conduit need the overhaul and all irregular by the heat preservation of heat preservation body. (Heat preservation of 2) colligation law. Colligation law heat preservation is will porous insulation material or mine fine canister of the insulation material warming plate that makes, envelope, canal or arc piece direct parcel is small go up in equipment and conduit, exterior in using 1.2? The galvanization iron wire of 2mm secures colligation. Colligation law heat preservation is the heat preservation configuration that uses extensively. (3) assembles type heat preservation. Heat preservation advocate layer material and outside covering layer all are the goods that decide model, spot construction needs to press norms perch only and try to secure, the heat preservation of general and special device is used mostly assemble structure of type heat preservation. (Heat preservation of 4) fill law. Fill law heat preservation is direct will inattentive mine fine material or stuff of poriferous grain stuff are mixed to equipment of conduit all round, reach certain close-grained level. What general boiler wears a wall to be in charge of is sealed mix with flange of adiabatic, valve expand section place is dismountable use fill law heat preservation structure of type heat preservation. (Heat preservation of 5) stickup law. Stickup law heat preservation is to use binder felt insulation stickup in metal or surface of pottery and porcelain, form adiabatic structure. This law suits the construction of fireproof fiber felt quite. (Heat preservation of 6) spray structure. Spray structure heat preservation uses special device to go to eject of insulation material of organic bubble heat insulation adiabatic face, form structure of spray heat insulation. (7) metal reflexes type heat preservation. Heat preservation of metallic reflex type uses stainless steel refractory steel foil makes multilayer hot screen, the air space of each hot screen is 1.5mm about, basically use at reducing radiation and hot to circulating heat preservation construction, apply to vibration and high temperature operating mode.
What does Henan manufacturer insulation material have? Heat preservation brick, heat preservation is pouring cotton of makings, heat preservation, blanket, felt is waited a moment, use effect of insulation material combination is more energy-saving. Are you still in to cannot find durable fireproof material trouble? Fireproof and pouring makings, firebrick is not durable, be material choosing fault after all? Be quality problem? Is still other reason caused? Flourish Cheng Naicai is seasoned, all sorts of difficult problem that can solve in use of kiln furnace liner to appear and select material problem are waited a moment, make your hot project facilities efficient and macrobian move.