Fly-ash-ceramic-tile raw material, fly-ash ceramic tile and preparing method of fly-ash ceramic tile

A technology of fly ash and ceramic bricks, which is applied in the field of inorganic non-metallic materials, can solve the problems of inapplicability to large-scale production of ceramic bricks, cumbersome process, and difficult operation, and achieve the benefits of actual large-scale production, simple preparation process, The effect of high green body strength

Inactive Publication Date: 2017-07-28
广东惠众新材料科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in the above schemes, the amount of fly ash added is very low, and it cannot be used as the main raw material to prepare ceramic tiles like clay, and it cannot replace clay well and maximize the utilization of fly ash resources.
[0006] In order to increase the amount of fly ash added, individual solutions have been proposed in the prior art, some of which have been improved in terms of production technology, and the method of slurry casting instead of extrusion, dry pressing and other molding methods is used to increase the yield of finished products. However, this method has a long cycle and cumbersome process, and is not suitable for the actual large-scale production of ceramic tiles.
It was

Method used

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preparation example Construction

[0055] The present invention also provides a kind of preparation method of fly ash ceramic tile, comprises the following steps:

[0056] a) mixing the raw materials, adding water and granulating to obtain pellets;

[0057] b) molding the pellets to obtain a green body;

[0058] c) Sintering the green body at 300-1300° C. to obtain a fly ash ceramic brick; wherein, the raw material in step a) is the raw material described in the above technical solution, which will not be repeated here.

[0059] According to the present invention, the raw materials are firstly mixed, and then granulated by adding water to obtain pellets.

[0060] In the present invention, when mixing and granulating, it is preferably carried out in the following manner: mix the raw meal at a rotating speed of 600-1500r / min for 1-10min, add water, and then mix and granulate at a rotating speed of 2500-4500r / min , and then mixed at a speed of 700 to 2000r / min for 1 to 10 minutes to obtain pellets. In the prese...

Embodiment 1

[0072] Raw material: fly ash 920g, water glass 40g, quartz powder 10g, expanded perlite 10g, albite feldspar 20g.

[0073] Preparation: Add the above raw material into a high-speed granulator and mix for 1 min at 1500r / min, add 18% water, mix at 4500r / min to form granules, then adjust the speed to 2000r / min, and continue for 10min to obtain pellets; Sieve and select 10-200-mesh pellets and distribute them evenly in the mold, using a press at 500kg / cm 2 Dry press molding under pressure, and then dry in a constant temperature drying oven at 180° C. for 3 hours to obtain a green body. Put the green body in the fume hood, turn on the ventilation equipment, spray the glaze, and the specific gravity of the glaze slurry is 1.7. The body after glazing was dried again, transferred to a muffle furnace, and raised from room temperature to 600°C at a rate of 30°C / min, then raised to 800°C at a rate of 1°C / min, and then heated at a rate of 10°C. The temperature was raised to 900 °C at a ...

Embodiment 2

[0076] Raw material: fly ash 850g, bentonite 50g, calcium lignosulfonate 10g, mineral powder 40g, potassium feldspar 50g.

[0077] Preparation: Add the above raw material into a high-speed granulator and mix for 1 min at 1500r / min, add 13% water, mix at 2500r / min to form granules, then adjust the speed to 700r / min, and continue for 1min to obtain pellets; Sieve and select 10-200-mesh pellets and distribute them evenly in the mold, using a press at 300kg / cm 2 Dry press molding under pressure, and then dry in a constant temperature drying oven at 110° C. for 5 hours to obtain a green body. Put the green body in the fume hood, turn on the ventilation equipment, spray the glaze, and the specific gravity of the glaze slurry is 1.7. The body after glazing was dried again, transferred to a muffle furnace, and raised from room temperature to 300°C at a rate of 50°C / min, then to 600°C at a rate of 1°C / min, and then to 20°C The temperature was raised to 700°C at a heating rate of 10°C...

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Abstract

The invention provides a fly-ash-ceramic-tile raw material, a fly-ash ceramic tile and a preparing method of the fly-ash ceramic tile. The fly-ash-ceramic-tile raw material is prepared from 70-92 parts by weight of fly ash and 8-30 parts by weight of an additive; the additive comprises a plasticizer, a reinforcing agent and a fluxing agent; the plasticizer is selected from one or more of water glass, bentonite and lignosulfonate; the reinforcing agent is selected from one or more of mineral powder, quartz powder, silica fume and perlite; the fluxing agent is albite and/or potassium feldspar. The added amount of the fly ash in the ceramic-tile raw material is greatly increased, a blank prepared from the raw material is high in strength, not prone to fragmentation and capable of conducting actual large-scale production and breaking a limitation of the using amount of past fly ash. By means of the preparing method, a ceramic tile product with the fly ash as the body material can be prepared, the preparing process is simple, actual production is easy to conduct, and actual large-scale production can be achieved.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic materials, in particular to a fly ash ceramic brick raw material, a fly ash ceramic brick and a preparation method thereof. Background technique [0002] Ceramic bricks are plate-shaped or block-shaped ceramic products made by molding raw materials formed of clay and other inorganic non-metallic materials to obtain green bodies, and then sintering the green bodies. They are mainly used as walls of buildings and other buildings. Surface and ground decoration materials are used to decorate and protect buildings. The production of traditional ceramic bricks uses clay as the main raw material. The mining of clay has caused a large loss of land resources, and the state's control over clay mining is becoming more and more strict; There are also great safety hazards in the construction process. [0003] Based on this, technicians gradually develop other materials to replace clay. For exa...

Claims

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Application Information

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IPC IPC(8): C04B33/135C04B33/13
CPCC04B33/1305C04B33/131C04B33/1352C04B2235/3418C04B2235/3472Y02P40/60
Inventor 贾屹海何伟发谢曙骆永光
Owner 广东惠众新材料科技股份有限公司
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