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Preparation method for high-temperature sintering of kieselguhr

A technology for making diatomite at high temperature and diatomite is applied in the field of preparing diatomite at high temperature, which can solve problems such as easy falling off, and achieve the effects of increased water absorption and good heat insulation effect.

Inactive Publication Date: 2018-11-06
吴明文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Easy to fall off in washing or wet environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A preparation method for high-temperature sintering of diatomite is characterized in that it comprises the following steps:

[0015] 1) Weigh each raw material according to the following ratio by weight percentage: diatomite: 60%; kaolin: 13%; pyrophyllite: 12%; bentonite: 5%; calcium carbonate: 7%; pva: 0.8%; Aluminum oxide: 3%;

[0016] 2) Mix diatomite and kaolin, and heat the mixed furnace at 1000°C for 20 minutes;

[0017] 3) Mix pyrophyllite, bentonite, calcium carbonate, pva and alumina, and mix the mixture with the previous mixture of diatomaceous earth and kaolin.

[0018] The diatomaceous earth and kaolin mixture is heated, cooled to normal temperature, ground and crushed again, and then mixed with a mixture of pyrophyllite, bentonite, calcium carbonate, pva and alumina.

Embodiment 2

[0020] A preparation method for high-temperature sintering of diatomite, comprising the following steps:

[0021] 1) Weigh each raw material according to the following ratio by weight percentage: diatomite: 62%; kaolin: 10%; pyrophyllite: 10%; bentonite: 8%; calcium carbonate: 9%; pva: 1%; Aluminum oxide: 4%;

[0022] 2) Mix diatomite and kaolin, and heat the mixed furnace at 1100°C for 25 minutes;

[0023] 3) Mix pyrophyllite, bentonite, calcium carbonate, pva and alumina, and mix the mixture with the previous mixture of diatomaceous earth and kaolin.

[0024] 2. a kind of preparation method that makes diatomite high-temperature sintering according to claim 1 is characterized in that, after described diatomite and kaolin mixture are heated, cool down to normal temperature, and grind again and then mix with A mixture of pyrophyllite, bentonite, calcium carbonate, pva and alumina is mixed together.

Embodiment 3

[0026] A preparation method for high-temperature sintering of diatomite is characterized in that it comprises the following steps:

[0027] 1) Weigh each raw material according to the following ratio by weight percentage: diatomite: 65%; kaolin: 8%; pyrophyllite: 6%; bentonite: 10%; calcium carbonate: 11%; pva: 1.2%; Aluminum oxide: 8%;

[0028] 2) Mix diatomite and kaolin, and heat the mixed furnace at 1000-1150°C for 20-30 minutes;

[0029] 3) Mix pyrophyllite, bentonite, calcium carbonate, pva and alumina, and mix the mixture with the previous mixture of diatomaceous earth and kaolin.

[0030] The diatomaceous earth and kaolin mixture is heated, cooled to normal temperature, ground and crushed again, and then mixed with a mixture of pyrophyllite, bentonite, calcium carbonate, pva and alumina.

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PUM

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Abstract

The invention discloses a preparation method for high-temperature sintering of kieselguhr. The preparation method comprises the following steps: 1) weighing the following raw materials in percentage by weight: 60-65% of kieselguhr, 8-13% of kaolin, 6-12% of pyrophyllite, 5-10% of bentonite, 7-12% of calcium carbonate, 0.8-1.2% of pva (polyvinyl alcohol) and 3-8% of aluminum oxide; 2) mixing the kieselguhr with the kaolin, and heating the mixture for 20-30 minutes in at furnace at 1000-1150 DEG C; 3) mixing the pyrophyllite, the bentonite, the calcium carbonate, the pva and the aluminum oxide,and mixing the mixture with the mixture of the kieselguhr and the kaolin. By adopting the preparation method for high-temperature sintering of the kieselguhr, the kieselguhr is high in water absorption capacity, environmentally-friendly, free of waste and not liable to drop off.

Description

technical field [0001] The invention relates to the field of handicraft production materials, in particular to a preparation method for high-temperature sintering of diatomite. Background technique [0002] At present, the handicrafts made of diatomite in our country are all formed by chemical condensation, which cannot be sintered at high temperature, and normally turn into powder at 150 degrees. Ordinary diatomite handicrafts made of chemical coagulation, the content of diatomite is not high, normally only about 20-30%. powder, the water absorption capacity decreases after a period of use until it does not absorb water. It is easy to fall off under washing or wet environment. Contents of the invention [0003] In order to solve the problems raised in the above-mentioned background technology, the object of the present invention is to provide a preparation method for high-temperature sintering of diatomite, which has good heat insulation effect, strong water absorption ...

Claims

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Application Information

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IPC IPC(8): C04B26/04C04B20/06
CPCC04B20/06C04B26/04C04B14/08C04B14/106C04B14/041C04B14/104C04B14/28C04B14/303
Inventor 吴明文
Owner 吴明文