Alumina is hollow ball brick application and production shape methodological introduction

Alumina is hollow ball brick is the price in heat preservation brick is higher, of course, fireproof degree, carry on one's shoulder is soft going up also is taller, rong Cheng is small today make up for everybody introduction application of hollow ball brick reachs alumina production shapes method, detailed content reads please below.


Alumina is hollow ball brick is the light qualitative neuter heat preservation with a kind of energy-saving and exceedingly good superhigh temperature fireproof material, it is with alumina hollow ball is raw material to be become via agglomeration of 1680 ℃ high temperature. Alumina is hollow ball brick not only system is secret small, can optimize a structure to reduce weight of body of heater thereby, and coefficient of thermal conductivity is low, had effect of very good heat preservation heat insolation. Basically use as the liner of furnace of kiln of high temperature industry under 1800 ℃ , wait for an industry like oil, chemical industry, electron, pottery and porcelain, fireproof material.
Major of flourish Cheng Naicai produces alumina hollow ball brick, hollow ball uses alumina alumina is hollow pink of ball, corundum, to calcine pink for raw material, mix by certain proportion, after shaping, become via high temperature agglomeration. Have high temperature resistant, coefficient of thermal conductivity low, heat proof quality is good, chemical stability is good (acid-proof, alkalescent medium is eroded) , bulk density is small (pledge than akin material wall of light, kiln reduces thin, cost low) wait for character. Wide application contacts liner of furnace of frit fluid high temperature and the adiabatic heat-insulation layer of Shanghai of all sorts of high temperature kiln at all sorts of blame.
Hollow ball uses alumina only hollow ball is alumina main raw material, high-powered small pink is additive, organic material is done temporarily bond, become in fire of the high temperature inside shuttle type kiln. Many closed pore is contained inside goods, have qualitative light performance of high temperature resistant, heat preservation is good, burn systole again small, heatproof shake performance is good wait for a characteristic, mix to aggressivity gas slaggy also have stronger counteractive capacity. Products can increase kiln furnace thermal efficiency to use greatly, shorten production is periodic, reduce kiln body weight, implementation is energy-saving fall bad news. Goods can contact blaze directly, apply to the liner of furnace of kiln of splitting decomposition furnace, hot-blast stove, heating furnace, channel, ejector plate kiln, crucible and kiln of all sorts of electric stove, report, gold of wide application Yu Ye, be able to bear or endure the industry such as material, light industrial, chemical industry, pottery and porcelain, glass, electron.
Alumina is hollow ball brick shapes reach firing introducing to shape the method has handiwork to shape, vibration shapes and machine pressing shapes. According to alumina complex case comes the dimension size of hollow ball brick and appearance choice burden and shape method. Shape by hand should statified pound dozen, every feed in raw material does not exceed 50mm. Vibration shapes time is 2min commonly. Machine pressing shapes shape pressure is 50-80MPa commonly, all sorts of shaping the mould that the method machines, need not add put foot, after semi-manufactured goods course is sufficient and dry, leftover moisture should is less than 0.5% . Alumina is hollow ball brick is firing inside furnace of high temperature kiln, firing temperature is 1800-1850 ℃ commonly, heat preservation 4-6h. It is to prevent alumina commonly hollow ball brick is in firing in generation crackle, in alumina of the consideration when loading of kiln hollow ball brick does not get as far as possible the immediate impact of blaze. Emulsification olefin 0.5%-1.0% is joined in raw material, plasticizer 4%-6% , efficient and dispersive agent 1% , water is 40%-45% commonly, the starch is made in high speed mixer, send spray slop through nozzle with membrane pump undertake sparge builds bead inside dry tower dry. The entrance temperature of dry tower is 420-440 ℃ commonly, outlet temperature is 120-130 ℃ commonly.
Be in firing when, temperature is controlled in 1680 degrees, hollow ball brick already began alumina agglomeration, bulk density and compression intensity are higher, determine its compression intensity achieves 317.3MPa. Heat-insulating material basically is commonly those who reduce wall of kiln boiler setting indigestion heat up and come loose hot, in order to reduce kiln furnace specific power consumption. As the progress of science and technology, appeared in recent years many already high temperature resistant intensity big new-style and fireproof heat-insulating material. Alumina is hollow the stand or fall of ball brick function, payoff is chemical composition commonly, it is alumina next hollow ball brick produces a course, grain deserves to compare, shape pressure and firing the factor such as temperature is very main also.
Alumina of relevant product introduction is hollow hollow ball brick all belongs to ball brick and zirconia adiabatic and fireproof material, weigh light simple fireproof stuff again, their feature is porosity tall, can achieve 40%-85% commonly; Bulk density is inferior, general meeting under 1.5g/cm3; Thermal conductance is low, general under 1.0W (M · K) . Hollow ball brick uses as the adiabatic and fireproof material of industrial furnace kiln, can reduce furnace kiln effectively heat loss due to radiation, save the sources of energy. Because system is secret lesser, can reduce the weight of hot project facilities effectively. About alumina hollow ball brick, introduce here, hope to be helped somewhat to everybody. Flourish Cheng Naicai is offerred freelyHeat preservation brickSample, flourish Cheng Naicai regards Henan of nearly 20 years as fireproof material manufacturer, pay attention to the amplification of oneself dimensions not only, more important is to stand in long-term development point of view from beginning to end, ceaseless development gives new-style fireproof data, satisfy more firm market demand ceaselessly thereby, comply with the development of tendency of the day. Major of flourish Cheng Naicai produces all sorts of tall aluminous bricks, firebrick, argillaceous brick, pouring the product such as makings, welcome broad client to come to a factory make an on-the-spot investigation on the spot, establish long cooperative relationship.