CN1803720A - Method for preparing light heat-insulating fire resistant brick - Google Patents

Method for preparing light heat-insulating fire resistant brick Download PDF

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Publication number
CN1803720A
CN1803720A CN 200610018297 CN200610018297A CN1803720A CN 1803720 A CN1803720 A CN 1803720A CN 200610018297 CN200610018297 CN 200610018297 CN 200610018297 A CN200610018297 A CN 200610018297A CN 1803720 A CN1803720 A CN 1803720A
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fire brick
preparation
light fire
brick
vibration
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CN100378036C (en
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刘少明
刘忠江
何重新
李鹤
苏伯平
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Wuhan Winning Technology Co., Ltd.
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WUHAN WEILIN FURNACE LINING MATERIAL CO Ltd
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Abstract

The related manufacture method for light insulating refractory brick comprises: mixing 40~70wt% chamotte or 45~75wt% bauxite chamotte or 50~80wt% corundum mullite, 5~30wt% raw clay, 0.5~3wt% polystyrene ball and 5~20wt% organic ablative material as well as 15~25wt% water; putting former mixture into mould 2, compressing with a compression device 1 and vibrating with a vibrating device 4 both with 0.1~3min; taking out for natural dry. This invention has well thermal shock resistance with low coat.

Description

A kind of preparation method of light fire brick
One, technical field
The invention belongs to technical field of refractory materials.Relate in particular to a kind of preparation method of light fire brick.
Two, background technology
Light fire brick is by the gentle phase composite of solid phase, and gas forms isolated pore in the solid brick, and therefore, the thermal conductivity of light fire brick is lower, plays a part heat-insulation and heat-preservation in thermal kiln furnace.And the preparation method of insulating fire brick directly influences the gas phase distribution situation, has determined the performance of insulating fire brick.
At present, the method for producing light fire brick both at home and abroad has:
1, casting.Casting is the mud injection model that will configure, and drying is made adobe.But because of adding moisture content many, green strength is low, the carrying cracky, drying time is long, cuts that to grind clout many;
2, squeeze the mud method.Squeeze the mud method normally with the extrusion molding in vacuumizing mud extruder of prefabricated pug,, be cut into goods brick blank drying.But drying time is long, and it is many to cut the mill clout;
3, machine platen press.The machine platen press is to utilize brick pressing machine that the adobe material is pressed into adobe, and the pore-forming material of machine platen press is generally natural or synthetical contains the hole material, as floats pearl, perlite, vermiculite, silicon bath soil and artificial hollow ball etc.The adding of these aglites, the one, the source is restricted; The 2nd, the brick in-vivo tissue constitutes inhomogeneous, and the matrix part is comparatively fine and close, and brick body thermal conductivity increases; The 3rd, add and to float pearl and then it can be heated to collapse and lose bursting property and be brought in the brick, the thermal shock resistance of floating bead brick is reduced, and thermal shock resistance is a key property of insulating fire brick.
Three, summary of the invention
The purpose of this invention is to provide a kind of raw material sources extensively, need not dry, cut the mill light fire brick that clout is few, thermal shock resistance is good the preparation method
For achieving the above object, the present invention adopts technical scheme to be: will or be the chamotte of 40~70wt% or be the high alumina of 45~75wt% or be that the corundum-mullite of 50~80wt% mixes with the raw clay of 5~30wt%, the polystyrene spheres of 0.5~3wt%, the machine burning lost article that has of 5~20wt%, add the water of 15~25wt%, put into mould after mixing, put down pressurizing device, the Vibration on Start-up device vibrates, pressurization, time of vibration are 0.1~3min, take out seasoning then.
It is described that the machine burning lost article is arranged is the mixture of a kind of in wood chip, rice hulls, the coke powder or two kinds or three kinds; The pressure of pressurizing device is 0.001~0.2Mpa.Vibration processes has constant compression force all the time.
Owing to adopt technique scheme, raw material sources of the present invention are extensive, and because of adding moisture fewly need not dry, owing to once shaped do not have cut the mill clout or cut the mill clout few, the machine burning lost article that has that adds can guarantee even air hole distribution, thereby has the advantages that cost is low, thermal shock resistance is good.
Compare with existing insulating fire brick, the present invention also has the following advantages:
1, thermal conductivity is low, and especially under the condition of high temperature, thermal conductivity is relatively low, and thermal and insulating performance is good;
2, good thermal shock stability, in the use temperature scope, brick is indeformable, does not peel off;
3, according to the purposes difference, select rational physical strength for use, make the every performance the best of light cinder brick;
4, higher refractoriness under load and less reheating linear change rate on reheating are compared with the light fire brick of similar material, and use temperature is higher, and the life-span is longer, and is safer;
5, with short production cycle, production capacity is big, in time meets customer need.
The present invention is when possessing above advantage and characteristics, and its Application Areas is also more extensive.On traditional sense,, also can be directly used in the working lining of multiple industrial furnace such as process furnace, furnace roof as the insulating, can increase substantially the industrial furnace heat insulation effect, reduce energy consumption, reduce the body of heater weight of industrial furnace, change furnace binding, for kiln design provides more selection.
Four, description of drawings
Fig. 1 is a shaping schematic view of the present invention
Five, embodiment
Below in conjunction with accompanying drawing the present invention is described further.
The preparation method of 1 one kinds of clay light weights of embodiment matter insulating fire brick, its embodiment is:
The wood chip of the polystyrene spheres of the raw clay of the chamotte of 45~70wt%, 5~30wt%, 0.5~2wt% and 10~20wt% is added water mix, adding water weight is 15~24% of above-mentioned compound weight.
Compound after will mixing is put into the mould [2] on as shown in Figure 1 the supporting plate [3], put down pressurizing device [1] pressurization again, the pressure of pressurizing device is 0.01~0.018Mpa, the vibrating device [4] that starts under the supporting plate [3] in the time of pressurization vibrates, pressurization, time of vibration are 0.1~2min, and vibration processes has constant compression force all the time.Mention mould [2] then, remove supporting plate [3], take out seasoning.
After testing, dried this clay light weight matter insulating fire brick series physical and chemical index is as described in Table 1.
Table 1 clay light weight matter insulating fire brick series physical and chemical index
Figure A20061001829700051
The preparation method of 2 one kinds of high alumina light weights of embodiment matter insulating fire brick, its embodiment is:
Add water after wood chip, the rice hulls of the polystyrene spheres of the raw clay of the high alumina of 50~75wt%, 5~25wt%, 1~2.5wt% and 5~20wt% mixed with any weight percentage and mix, adding water weight is 15~22% of above-mentioned compound weight.
Compound after will mixing is put into the mould [2] on the supporting plate [3] that places as shown in Figure 1, put down pressurizing device [1] pressurization again, the pressure of pressurizing device is 0.01~0.018Mpa, the vibrating device [4] that starts under the supporting plate [3] in the time of pressurization vibrates, pressurization, time of vibration are 0.1~2min, and vibration processes has constant compression force all the time.Mention mould [2] then, remove supporting plate [3], seasoning.
After testing, dried this high alumina light weight matter insulating fire brick series physical and chemical index is as described in Table 2.
Table 2 high alumina light weight matter insulating fire brick series physical and chemical index
The preparation method of 3 one kinds of corundum mullite rock light fire bricks of embodiment, its embodiment is:
Add water after wood chip, rice hulls, the coke powder of the polystyrene spheres of the raw clay of the corundum-mullite of 55~80wt%, 5~20wt%, 1.5~3wt% and 5~15wt% mixed with any weight percentage and mix, adding water weight is 15~22% of above-mentioned compound weight.
Compound after will mixing is put into the mould [2] on the supporting plate [3] that places as shown in Figure 1, put down pressurizing device [1] pressurization again, the pressure of pressurizing device is 0.01~0.018Mpa, the vibrating device [4] that starts under the supporting plate [3] in the time of pressurization vibrates, pressurization, time of vibration are 0.1~2min, and vibration processes has constant compression force all the time.Mention mould [2] then, remove supporting plate [3], seasoning.
After testing, dried this corundum mullite rock light fire brick series physical and chemical index is as shown in table 3.
Table 3 corundum mullite rock light fire brick series physical and chemical index
Figure A20061001829700061

Claims (4)

1, a kind of preparation method of light fire brick, it is characterized in that will or being the chamotte of 40~70wt% or being the high alumina of 45~75wt% or being that the corundum-mullite of 50~80wt% mixes with the raw clay of 5~30wt%, the polystyrene spheres of 0.5~3wt%, the machine burning lost article that has of 5~20wt%, add the water of 15~25wt%, put into mould [2] after mixing, put down pressurizing device [1], Vibration on Start-up device [4] vibrates, pressurization, time of vibration are 0.1~3min, take out seasoning then.
2, the preparation method of light fire brick according to claim 1 is characterized in that described the machine burning lost article is arranged is the mixture of a kind of in wood chip, rice hulls, the coke powder or two kinds or three kinds.
3, the preparation method of light fire brick according to claim 1, the pressure that it is characterized in that described pressurizing device is 0.001~0.2Mpa.
4, the preparation method of light fire brick according to claim 1 is characterized in that described vibration processes has constant compression force all the time.
CNB200610018297XA 2006-01-25 2006-01-25 Method for preparing light heat-insulating fire resistant brick Active CN100378036C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101618968B (en) * 2009-08-11 2012-05-30 郑州东方炉衬材料有限公司 Ultra-microporous lightweight insulated firebrick and manufacture method thereof
CN101638324B (en) * 2009-08-14 2012-07-18 华南农业大学 Light porous heat-insulating refractory material and preparation method and applications thereof
CN104119083A (en) * 2014-05-29 2014-10-29 长兴盟友耐火材料有限公司 Refractory brick for waste heat power generation tuyere of rotary kiln and preparation method of refractory brick
CN104118031A (en) * 2014-07-17 2014-10-29 桓台县果里镇常沣建材经销处 Concrete construction supporting member compacting mold and process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444398C1 (en) * 1984-12-05 1986-02-13 Didier-Werke Ag, 6200 Wiesbaden Process for making a refractory light-weight brick
CN1062532C (en) * 1994-08-19 2001-02-28 冶金工业部武汉冶金建筑研究所 Light heat insulation refractory brick made of powdered coal ash
DE19654532B4 (en) * 1996-12-27 2009-03-19 Krcmar, Wolfgang, Prof.Dr. Process for the production of porosity clay bricks and bricks with pores made therefrom
CN1199029A (en) * 1997-05-08 1998-11-18 宋功业 Ash-slag brick making method
CN1169635C (en) * 2002-05-28 2004-10-06 王辉 Regenrated brick and its production process
CN100429177C (en) * 2004-06-02 2008-10-29 武汉科技大学 Mg-Al light thermal-insulated fireproof materials and method for preparing same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101618968B (en) * 2009-08-11 2012-05-30 郑州东方炉衬材料有限公司 Ultra-microporous lightweight insulated firebrick and manufacture method thereof
CN101638324B (en) * 2009-08-14 2012-07-18 华南农业大学 Light porous heat-insulating refractory material and preparation method and applications thereof
CN104119083A (en) * 2014-05-29 2014-10-29 长兴盟友耐火材料有限公司 Refractory brick for waste heat power generation tuyere of rotary kiln and preparation method of refractory brick
CN104119083B (en) * 2014-05-29 2016-03-02 长兴盟友耐火材料有限公司 Air port refractory brick and preparation method thereof is got in a kind of rotary kiln cogeneration
CN104118031A (en) * 2014-07-17 2014-10-29 桓台县果里镇常沣建材经销处 Concrete construction supporting member compacting mold and process
CN104118031B (en) * 2014-07-17 2016-04-06 桓台县果里镇常沣建材经销处 A kind of compacting tool set of concrete construction supporting member and technique

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