CN108358657A - A kind of fire prevention resistance to compression insulating brick and preparation method thereof - Google Patents

A kind of fire prevention resistance to compression insulating brick and preparation method thereof Download PDF

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Publication number
CN108358657A
CN108358657A CN201810125216.9A CN201810125216A CN108358657A CN 108358657 A CN108358657 A CN 108358657A CN 201810125216 A CN201810125216 A CN 201810125216A CN 108358657 A CN108358657 A CN 108358657A
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parts
fire
insulating brick
fire prevention
powder
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李丹丹
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Hefei Environmental Protection Technology Co Ltd Fanteng
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Hefei Environmental Protection Technology Co Ltd Fanteng
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
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    • 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
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    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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Abstract

The invention discloses a kind of fire prevention resistance to compression insulating bricks and preparation method thereof, including following raw material：Corundum-mullite, quartz sand, expanded perlite, vermiculite, silicon carbide micro-powder, floating bead, fine silica powder, titanium dioxide, fire clay, foaming agent and water.Its preparation process：（1）Raw material is ground；（2）Add water to stir evenly, be heated to 1,200 1400 DEG C and keep the temperature 3 5h；（3）Natural cooling is added foaming agent, after stirring evenly, pours into mold, 1 3h is kept the temperature at 700 800 DEG C；（4）Demoulding, dry, heating is to get fire prevention resistance to compression insulating brick.The present invention provides a kind of fire prevention resistance to compression insulating brick, has the characteristics that compression strength is high, thermal coefficient is low, thermal and insulating performance is good, fire protecting performance is good, good weatherability.

Description

A kind of fire prevention resistance to compression insulating brick and preparation method thereof
Technical field
The present invention relates to insulating brick technical fields, and in particular to a kind of fire prevention resistance to compression insulating brick and preparation method thereof.
Background technology
Refractory brick is the refractory material with definite shape and size being fired into refractory clay or other refractory raw materials, Faint yellow or brown, resistance to 1580 DEG C -1770 DEG C of high temperature are mainly used for building smelting furnace.It can divide to divide by process of preparing To be fired into bricks, unburned brick, fused cast refractories, refratory insulating brick；It can be divided into standard size brick, common brick, specific bricks by shape and size Deng.Refractory brick can be used as building the high temperature construction material and structural material of kiln and various Thermal Equipments, and at high temperature can be through By various physicochemical changes and mechanism.Refractory brick includes chamotte brick, high-alumina brick, silica brick, magnesia brick etc..
Currently, the problems such as that there are compression strength is low for refractory brick on the market, and fire resistance is poor, when use, is easily damaged, and uses Short life.
Invention content
The purpose of the present invention is being directed to problem of the prior art, a kind of fire prevention resistance to compression insulating brick and preparation method thereof is provided, Have the characteristics that compression strength is high, thermal coefficient is low, thermal and insulating performance is good, fire protecting performance is good, good weatherability.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
A kind of fire prevention resistance to compression insulating brick, is prepared by following raw material in parts by weight：20-40 parts of bentonite tailing, stone 10-20 parts of English powder, 25-35 parts of polycrystalline mullite fibre, 8-15 parts of corundum slag, 2-8 parts of silicon carbide micro-powder, 3-10 parts of floating bead, two 1-6 parts of ultrafine silica powder, 2-8 parts of albite, 4-10 parts of fire clay, 0.5-1.5 parts of foaming agent, 2-6 parts of fire retardant, bonding agent 1-4 parts and 40-60 parts of water.
Preferably, 30 parts of the bentonite tailing, 15 parts of silica flour, 3 parts of polycrystalline mullite fibre, corundum slag 11.5 Part, 5 parts of silicon carbide micro-powder, 7 parts of floating bead, 3.5 parts of fine silica powder, 5 parts of albite, 7 parts of fire clay, 1 part of foaming agent, resistance Fire 50 parts of 4 parts of agent, 2.5 parts of bonding agent and water.
Preferably, it is 2-4 that the floating bead, which is by quality proportioning,:1 silica and alundum (Al2O3) composition.
Preferably, alundum (Al2O3) mass percent is 30%-50% in the fire clay.
Preferably, the foaming agent is one kind in sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon dust.
Preferably, the fire retardant is selected from aluminium hydroxide or magnesium hydroxide.
Preferably, the one kind of the bonding agent in waterglass, Ludox, calcium lignosulfonate.
The present invention also provides a kind of preparation methods of fire prevention resistance to compression insulating brick, include the following steps：
(1) each raw material is weighed by regulation number；
(1) by bentonite tailing, silica flour, polycrystalline mullite fibre, corundum slag, silicon carbide micro-powder, floating bead, silica Micro mist, albite, fire clay are ground with sand mill, are crossed 100-200 mesh and are sieved to obtain mixing fines；
(2) after stirring evenly the mixing fines of step (1) and water, fire retardant is added, and 1- is kept the temperature at 100-120 DEG C 3h is then heated to 400-500 DEG C, and bonding agent is added, and stirs evenly；
(3) foaming agent is added after powder temperature is down to 100-200 DEG C in the powder natural cooling for heating step (2), It after stirring evenly, is poured into mold, heating mould, 1-3h is kept the temperature at 700-800 DEG C；
(4) after the completion of keeping the temperature, 10-20h is conserved at ambient temperature, is demoulded, then the dry 5-10h at 100-120 DEG C, most Afterwards again under the conditions of 1000-1200 DEG C heat preservation 3-5h to get fire prevention resistance to compression insulating brick.
Preferably, stirring evenly condition in the step (2)：30- is stirred under the rotating speed of 500-600r/min 50min。
Preferably, the rate heated in the step (2) is 5-10 DEG C/min.
Compared with prior art, the present invention has following advantageous effect：The present invention provides a kind of fire prevention resistance to compression insulating brick, Have the characteristics that compression strength is high, thermal coefficient is low, thermal and insulating performance is good, fire protecting performance is good, good weatherability, concrete condition is such as Under：
(1) present invention using bentonite tailing, silica flour, polycrystalline mullite fibre, corundum slag, silicon carbide micro-powder, floating bead, Fine silica powder, albite, fire clay are that primary raw material is carried using these raw material high intensity, high abrasion, fire-resistance properties High refractory brick intensity, fire resistance, the foaming agent of addition so that the combination between each raw material is even closer, further increases resistance to Firebrick intensity, heat-insulating property also greatly improve, while further improving refractory brick fire resisting of the present invention by the way that fire clay is added Performance, bonding agent addition is so that closer combination between each raw material, and not only heat insulation effect is excellent for insulating brick obtained in this way, but also It is also further improved in terms of intensity, in addition, the addition of fire retardant improves the fire protecting performance of insulating brick.
(2) by the present invention in that with light materials such as floating beads, while not influencing fire resisting village intensity so that refractory brick is more Lightweight use it as raw material since it is there are porous structure, the heat insulation effect of insulating brick can be further increased.
(3) performance indicators such as compression strength, fire resistance, heat-insulating property of refractory brick of the invention are up to state standards It is required that and be better than existing refractory brick, the requirement to high-strength refractory brick in production can be met.
(4) preparation method of the invention is simple, it is easy to accomplish, it is suitable for industrialized production.
Specific implementation mode
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of fire prevention resistance to compression insulating brick, is prepared by following raw material in parts by weight：30 parts of bentonite tailing, silica flour 15 parts, 3 parts of polycrystalline mullite fibre, 11.5 parts of corundum slag, 5 parts of silicon carbide micro-powder, 7 parts of floating bead, 3.5 parts of fine silica powder, 50 parts of 5 parts of albite, 7 parts of fire clay, 1 part of foaming agent, 4 parts of fire retardant, 2.5 parts of bonding agent and water.
Wherein, it is 3 that the floating bead, which is by quality proportioning,:1 silica and alundum (Al2O3) composition.
Wherein, alundum (Al2O3) mass percent is 40% in the fire clay.
Wherein, the foaming agent is one kind in sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon dust.
Wherein, the fire retardant is selected from aluminium hydroxide or magnesium hydroxide.
Wherein, the one kind of the bonding agent in waterglass, Ludox, calcium lignosulfonate.
The present invention also provides a kind of preparation methods of fire prevention resistance to compression insulating brick, include the following steps：
(1) each raw material is weighed by regulation number；
(1) by bentonite tailing, silica flour, polycrystalline mullite fibre, corundum slag, silicon carbide micro-powder, floating bead, silica Micro mist, albite, fire clay are ground with sand mill, are crossed 150 mesh and are sieved to obtain mixing fines；
(2) after stirring evenly the mixing fines of step (1) and water, fire retardant is added, and 2h is kept the temperature at 110 DEG C, so After be heated to 450 DEG C, and bonding agent is added, stirs evenly；
(3) foaming agent, stirring is added after powder temperature is down to 150 DEG C in the powder natural cooling for heating step (2) After uniformly, it is poured into mold, heating mould, 2h is kept the temperature at 750 DEG C；
(4) after the completion of keeping the temperature, 15h is conserved at ambient temperature, is demoulded, then the dry 7.5h at 110 DEG C, finally again 4h is kept the temperature under the conditions of 1100 DEG C to get fire prevention resistance to compression insulating brick.
Wherein, condition is stirred evenly in the step (2)：40min is stirred under the rotating speed of 550r/min.
Preferably, the rate heated in the step (2) is 7.5 DEG C/min.
Embodiment 2
A kind of fire prevention resistance to compression insulating brick, is prepared by following raw material in parts by weight：20 parts of bentonite tailing, silica flour 10 parts, 25 parts of polycrystalline mullite fibre, 8 parts of corundum slag, 2 parts of silicon carbide micro-powder, 3 parts of floating bead, 1 part of fine silica powder, sodium it is long 40 parts of 2 parts of stone, 4 parts of fire clay, 0.5 part of foaming agent, 2 parts of fire retardant, 1 part of bonding agent and water.
Wherein, it is 2 that the floating bead, which is by quality proportioning,:1 silica and alundum (Al2O3) composition.
Wherein, alundum (Al2O3) mass percent is 30% in the fire clay.
Wherein, the foaming agent is one kind in sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon dust.
Wherein, the fire retardant is selected from aluminium hydroxide or magnesium hydroxide.
Wherein, the one kind of the bonding agent in waterglass, Ludox, calcium lignosulfonate.
The present invention also provides a kind of preparation methods of fire prevention resistance to compression insulating brick, include the following steps：
(1) each raw material is weighed by regulation number；
(1) by bentonite tailing, silica flour, polycrystalline mullite fibre, corundum slag, silicon carbide micro-powder, floating bead, silica Micro mist, albite, fire clay are ground with sand mill, sieve with 100 mesh sieve to obtain mixing fines；
(2) after stirring evenly the mixing fines of step (1) and water, fire retardant is added, and 1-3h is kept the temperature at 100 DEG C, 400 DEG C are then heated to, and bonding agent is added, is stirred evenly；
(3) foaming agent, stirring is added after powder temperature is down to 100 DEG C in the powder natural cooling for heating step (2) After uniformly, it is poured into mold, heating mould, 1h is kept the temperature at 700 DEG C；
(4) after the completion of keeping the temperature, 10h is conserved at ambient temperature, is demoulded, then the dry 5h at 100 DEG C, finally again 1000 3h is kept the temperature under the conditions of DEG C to get fire prevention resistance to compression insulating brick.
Wherein, condition is stirred evenly in the step (2)：30min is stirred under the rotating speed of 500r/min.
Wherein, the rate heated in the step (2) is 5 DEG C/min.
Embodiment 3
A kind of fire prevention resistance to compression insulating brick, is prepared by following raw material in parts by weight：40 parts of bentonite tailing, silica flour 20 parts, 35 parts of polycrystalline mullite fibre, 15 parts of corundum slag, 8 parts of silicon carbide micro-powder, 10 parts of floating bead, 6 parts of fine silica powder, sodium 60 parts of 8 parts of feldspar, 10 parts of fire clay, 1.5 parts of foaming agent, 6 parts of fire retardant, 4 parts of bonding agent and water.
Wherein, it is 4 that the floating bead, which is by quality proportioning,:1 silica and alundum (Al2O3) composition.
Wherein, alundum (Al2O3) mass percent is 50% in the fire clay.
Wherein, the foaming agent is one kind in sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon dust.
Wherein, the fire retardant is selected from aluminium hydroxide or magnesium hydroxide.
Wherein, the one kind of the bonding agent in waterglass, Ludox, calcium lignosulfonate.
The present invention also provides a kind of preparation methods of fire prevention resistance to compression insulating brick, include the following steps：
(1) each raw material is weighed by regulation number；
(1) by bentonite tailing, silica flour, polycrystalline mullite fibre, corundum slag, silicon carbide micro-powder, floating bead, silica Micro mist, albite, fire clay are ground with sand mill, are crossed 200 mesh and are sieved to obtain mixing fines；
(2) after stirring evenly the mixing fines of step (1) and water, fire retardant is added, and 1-3h is kept the temperature at 120 DEG C, 500 DEG C are then heated to, and bonding agent is added, is stirred evenly；
(3) foaming agent, stirring is added after powder temperature is down to 200 DEG C in the powder natural cooling for heating step (2) After uniformly, it is poured into mold, heating mould, 3h is kept the temperature at 800 DEG C；
(4) after the completion of keeping the temperature, 20h is conserved at ambient temperature, is demoulded, then the dry 10h at 120 DEG C, finally again 1200 5h is kept the temperature under the conditions of DEG C to get fire prevention resistance to compression insulating brick.
Wherein, condition is stirred evenly in the step (2)：50min is stirred under the rotating speed of 600r/min.
Wherein, the rate heated in the step (2) is 10 DEG C/min.
Experimental example
Take embodiment 1-3 refractory brick and commercially available other two refractory brick on the market respectively as control group 1 It is tested with control group 2.
Test content：Compression strength, thermal coefficient, combustibility are detected.
Relevant criterion：Compression strength：GB/T11969-2008；Thermal coefficient：GB/T10294-2008；Combustibility： GB/T18624-2006。
Obtain the test result such as following table：
Table 1
By table 1 it is found that tune compression strength, thermal coefficient, the combustibility of the fire prevention resistance to compression insulating brick of the present invention are excellent In control group, illustrate that the present invention is high with compression strength, thermal coefficient is low, thermal and insulating performance is good, fire protecting performance is good, weatherability The features such as good.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of fire prevention resistance to compression insulating brick, which is characterized in that be prepared by following raw material in parts by weight：Bentonite tailing 20-40 parts, 10-20 parts of silica flour, 25-35 parts of polycrystalline mullite fibre, 8-15 parts of corundum slag, 2-8 parts of silicon carbide micro-powder, floating bead 3-10 parts, 1-6 parts of fine silica powder, 2-8 parts of albite, 4-10 parts of fire clay, 0.5-1.5 parts of foaming agent, fire retardant 2-6 40-60 parts of part, 1-4 parts of bonding agent and water.
2. fire prevention resistance to compression insulating brick according to claim 1, which is characterized in that 30 parts of the bentonite tailing, silica flour 15 parts, 3 parts of polycrystalline mullite fibre, 11.5 parts of corundum slag, 5 parts of silicon carbide micro-powder, 7 parts of floating bead, 3.5 parts of fine silica powder, 50 parts of 5 parts of albite, 7 parts of fire clay, 1 part of foaming agent, 4 parts of fire retardant, 2.5 parts of bonding agent and water.
3. fire prevention resistance to compression insulating brick according to claim 1, which is characterized in that it is 2-4 that the floating bead, which is by quality proportioning,: 1 silica and alundum (Al2O3) composition.
4. fire prevention resistance to compression insulating brick according to claim 1, which is characterized in that alundum (Al2O3) matter in the fire clay Amount percentage is 30%-50%.
5. fire prevention resistance to compression insulating brick according to claim 1, which is characterized in that the foaming agent be sodium carbonate, magnesium carbonate, One kind in sodium bicarbonate and carbon dust.
6. fire prevention resistance to compression insulating brick according to claim 1, which is characterized in that the fire retardant is selected from aluminium hydroxide or hydrogen Magnesia.
7. fire prevention resistance to compression insulating brick according to claim 1, which is characterized in that it is molten that the bonding agent is selected from waterglass, silicon One kind in glue, calcium lignosulfonate.
8. a kind of preparation method for resistance to compression insulating brick of being prevented fires according to claim 1-7 any one of them, which is characterized in that including Following steps：
（1）Each raw material is weighed by regulation number；
（1）Bentonite tailing, silica flour, polycrystalline mullite fibre, corundum slag, silicon carbide micro-powder, floating bead, silica is micro- Powder, albite, fire clay are ground with sand mill, are crossed 100-200 mesh and are sieved to obtain mixing fines；
（2）By step（1）Mixing fines and after water stirs evenly, fire retardant is added, and 1-3h is kept the temperature at 100-120 DEG C, It is then heated to 400-500 DEG C, and bonding agent is added, is stirred evenly；
（3）By step（2）Foaming agent, stirring is added after powder temperature is down to 100-200 DEG C in the powder natural cooling of heating After uniformly, it is poured into mold, heating mould, 1-3h is kept the temperature at 700-800 DEG C；
（4）After the completion of heat preservation, 10-20h is conserved at ambient temperature, is demoulded, then the dry 5-10h at 100-120 DEG C, finally again 3-5h is kept the temperature under the conditions of 1000-1200 DEG C to get fire prevention resistance to compression insulating brick.
9. the preparation method of fire prevention resistance to compression insulating brick according to claim 8, which is characterized in that the step（2）In Stir evenly condition：30-50min is stirred under the rotating speed of 500-600r/min.
10. according to the preparation method of fire prevention resistance to compression insulating brick according to any one of claims 8, which is characterized in that the step（2）Middle heating Rate be 5-10 DEG C/min.
CN201810125216.9A 2018-02-08 2018-02-08 A kind of fire prevention resistance to compression insulating brick and preparation method thereof Withdrawn CN108358657A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967629A (en) * 2016-04-06 2016-09-28 安徽鑫润新型材料有限公司 Cement hollow brick with high seismic resistance and preparation method thereof
CN107311616A (en) * 2017-06-20 2017-11-03 和县明生环保材料有限责任公司 A kind of high strength/fire proof insulating brick and preparation method thereof
CN107311676A (en) * 2017-07-12 2017-11-03 合肥梵腾环保科技有限公司 A kind of resistance to compression fireproof insulation brick and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967629A (en) * 2016-04-06 2016-09-28 安徽鑫润新型材料有限公司 Cement hollow brick with high seismic resistance and preparation method thereof
CN107311616A (en) * 2017-06-20 2017-11-03 和县明生环保材料有限责任公司 A kind of high strength/fire proof insulating brick and preparation method thereof
CN107311676A (en) * 2017-07-12 2017-11-03 合肥梵腾环保科技有限公司 A kind of resistance to compression fireproof insulation brick and preparation method thereof

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Application publication date: 20180803