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A preparing method of novel multifunctional diatomite ceramsite

A diatomite and multifunctional technology is applied in the field of preparation of novel multifunctional diatomite ceramsite, which can solve the problems of incapability of mass production, low sphericity, low strength and the like, and achieves centralized process, low production cost, and high strength. high effect

Inactive Publication Date: 2016-07-06
LIAONING SILICATE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In today's society, the application of diatomite is limited to industrial chemical carriers, environmental protection breathing bricks, multi-functional coatings, etc. With the improvement of people's living standards, the requirements for health are getting higher and higher, and the concept of "diatom life" is deepening. In the hearts of the people, diatomite ceramsite is also gradually approaching life. Round spheres have a wide range of applications and are flexible to use. They have been recognized by merchants. There are also various granulation methods, but most of them have limitations to varying degrees and low yields. , low sphericity, low strength, and cannot be mass-produced, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 400g of diatomite, 50g of superfine tourmaline powder (325 mesh), 10g of activated carbon, 2ml of dispersant (sodium silicate solution with a modulus of 1.5), and 600ml of water, pour them into a grinder, grind for 10 minutes, and grind the slurry The particle size distribution of the material is D50=3.4 μm. Then filter, dry at 100°C, and disperse into powder. Put the powder into the rotary fluidized granulator, spray the CMC diluent with a mass fraction of 6‰ as the binder, control the inlet temperature at 25°C, and the atomizing air pressure is directly related to the particle size, which is controlled at 4MPa. Air intake keeps the material in a fluidized state, the prepared spheres have a particle size of about 2mm, and the sphericity reaches 90%; prepare a sphere green body, sieve out particles with a particle size of 2mm, calcinate at 870°C, and keep warm for 2 hours, that is Porous diatomite ceramic particles with high strength, high sphericity, large speci...

Embodiment 2

[0028] Weigh 400g of diatomite, 75g of ultrafine tourmaline powder, 5g of activated carbon, 2ml of dispersant, and 700ml of water, pour them into a grinder, and grind for 10 minutes. The particle size distribution of the slurry after grinding is D50=3.7μm. Then filter, dry at 100°C, and disperse into powder. Put the powder into the rotary fluidized granulator, spray the CMC diluent with a mass fraction of 6‰ as the binder, control the inlet temperature at 40°C, and the atomizing air pressure is directly related to the particle size, which is controlled within 3MPa During the process, the air enters to make the material in a fluidized state, the particle size of the prepared ball is about 2mm, and the sphericity reaches 90%;

[0029] Prepare a spherical green body, screen out particles with a particle size of 2mm, calcinate at 870°C, and keep warm for 2 hours to obtain porous diatomite ceramic particles with high strength, high sphericity, large specific surface area, and relat...

Embodiment 3

[0031] Weigh 400g of diatomite, 95g of ultrafine tourmaline powder, 5g of activated carbon, 3ml of dispersant, and 700ml of water, pour them into a grinder, and grind for 10 minutes. The particle size distribution of the slurry after grinding is D50=4.2μm. Then filter, dry at 100°C, and disperse into powder. Put the powder into the rotary fluidized granulator, spray the CMC diluent with a mass fraction of 6‰ as the binder, control the inlet temperature at 30°C, and the atomizing air pressure is directly related to the particle size, which is controlled at 3.5MPa In between, the air enters to make the material in a fluidized state, the particle size of the prepared ball is about 2mm, and the sphericity reaches 90%;

[0032] Prepare a spherical green body, screen out particles with a particle size of 2mm, calcinate at 870°C, and keep warm for 2 hours to obtain porous diatomite ceramic particles with high strength, high sphericity, large specific surface area, and relatively unif...

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Abstract

The invention relates to a preparing method of novel multifunctional diatomite ceramsite. The method includes weighing certain amounts of diatomite, ultrafine tourmaline powder and activated carbon to form a mixture, mixing the mixture with a dispersant, an adhesive and water, adding into a ball mill, grinding and mixing. The particle size distribution of ground slurry is that D50 is not more than 10 [mu]m. The mixture comprises 70-90 parts by weight of the diatomite, 5-25 parts by weight of the ultrafine tourmaline powder and 1-5 parts by weight of the activated carbon. 100 parts by mass of the mixture, 0.1-2 parts by mass of the dispersant and 100-200 parts by mass of the water are mixed. The diatomite ceramsite is prepared through filter pressing, drying, scattering, fluidized-bed granulation, sieving and calcination. The prepared diatomite ceramsite has the characteristics of high strength, a plurality of micropores, high adsorbability, capability of being moisture-proof, odor-removing and thermal-insulating, high negative ion release capability, and far-infrared treatment environmental-friendly healthcare effects.

Description

technical field [0001] The invention relates to a preparation method of a new type of multifunctional diatomite ceramsite, in particular to an environmentally friendly product with high strength, microporosity, high adsorption capacity, moisture resistance, deodorization, heat preservation, strong anion release ability, and far-infrared treatment. Health care ceramic material and preparation method thereof. Background technique [0002] Diatomaceous earth is generally formed from the silicate remains after the death of single-celled algae collectively known as diatoms, and its essence is aqueous amorphous SiO 2 . It has some unique properties, such as: porosity, low concentration, large specific surface area and chemical stability. In modern industry, it is widely used in chemical and environmental protection fields. In recent years, diatomaceous earth has attracted people's attention because of its wide source, low price, and a large number of micropores below the micron ...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B35/622
Inventor 高琳琳许壮志薛健张全河肖飞
Owner LIAONING SILICATE RES INST
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