Method for forming diatomite

A molding method and diatomite technology, applied in clay products, other household appliances, household appliances, etc., can solve the problems of diatomite losing adsorption performance and ion exchange performance, dust on the surface, blocking of diatom pores, etc. Achieve the effect of improving physical molding properties and good mechanical strength

Inactive Publication Date: 2013-07-24
周合平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although various profiles are bonded by adding inorganic or organic gelling materials such as gypsum, there are still the following disadvantages: the gelling material will block all the diatom pores, so that the diatomite loses its adsorption performance and ion exchange performance. ; The strength of the obtained profile is small, and there is dust on the surface
However, due to technical limitations, there are currently no various products made of diatomite calcined.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment includes the following steps:

[0017] (1) Weigh the raw materials diatomite, bentonite and kaolin according to the ratio of mass ratio 1:0.28:0.14, then put them in the ball mill, and then add Grind with water and pass through a 120-mesh sieve;

[0018] (2) The sieved material obtained in step (1) is molded by ceramic gypsum mold grouting molding process, so that it becomes the required various functional diatomite product shapes, and then dried;

[0019] (3) The dried body is calcined in a gas-fired cubic kiln at a temperature of 950°C for 5 hours, and then cooled naturally.

[0020] The product obtained in this example can adjust indoor humidity, purify air (formaldehyde purification rate reaches 79%), absorb sound and reduce noise; it is flame retardant and can withstand high temperature of 1200°C; it has good mechanical strength (flexural strength reaches 32MPa, compressive strength reaches 500MPa), no dust on the surface, maintaining the original...

Embodiment 2

[0022] This embodiment includes the following steps:

[0023] (1) Weigh the raw materials diatomite, bentonite and kaolin according to the ratio of mass ratio 1:0.30:0.12, then put them in the ball mill, and then add Grind with water and pass through a 120-mesh sieve;

[0024] (2) The sieved material obtained in step (2) is first refined into a silicon bath soil mud bar through a mud refining machine, and the moisture content of the mud bar is controlled at 23wt%, and then rolled and formed by a forming rolling machine to make it the desired Various functional diatomite product shapes required, and then dry;

[0025] (3) The dried body is calcined in a gas-fired cubic kiln at a temperature of 1000°C for 4 hours, and then cooled naturally.

[0026] The product obtained in this example can adjust indoor humidity, purify air (formaldehyde purification rate reaches 80%), absorb sound and reduce noise; flame retardant, can withstand high temperature of 1200 ℃; has good mechanical...

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Abstract

The invention relates to a method for forming diatomite. The method comprises the steps of (1) weighing the raw materials diatomite, bentonite and kaoline according to the mass ratio 1: (0.20-0.40): (0.06-0.20), putting the raw materials in a ball mill, and adding water in the ball mill according to the ratio of the raw material total mass: water mass=1: (0.70-0.90) for levigation, and screening by a sieve with the meshes of equal to or more than 120; (2) molding the screened material into blanks of various functional diatomite products, and then cooling or drying; and (3) calcining the cooled or dried blanks in a furnace at the calcination temperature of 800-1200 DEG C for 3-6 hours, and forming the products by natural cooling. The products formed according to the method can adjust indoor humidity, purify the atmosphere, is sound-absorbing, noise-reducing, flame-retardant and high temperature resistant, and have better mechanical strength and no dust on the surface.

Description

technical field [0001] The invention relates to a molding method of diatomite. Background technique [0002] Diatomite is a diatom mineral formed after diatom deposition and mineralization for hundreds of millions of years. Its main component is opal. The molecular sieve structure of diatomite is soft and porous, with a porosity of up to 90%, and it is arranged regularly and neatly. It is round and needle-shaped, and the number of micropores per unit area is thousands of times more than that of charcoal. The prominent molecular lattice structure features determine its unique function. Diatom minerals have strong physical adsorption properties and ion exchange properties, and are widely used in alcohol and medical injection filtration, food additives, nuclear radiation adsorbents and many other fields after finishing. Because it can absorb or release water and automatically adjust the indoor air humidity, the unique "molecular sieve" can effectively remove free formaldehyde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/00
Inventor 周合平
Owner 周合平
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