A diatomite breathing brick with high humidity control and harm reduction function and its production method

Abstract

A diatomaceous earth breathing brick with a high humidifying harm-reduction function and a production method thereof are disclosed, through improvement of a formula, slurry with excellent performances can be prepared, a molding material is prepared by a spray granulation process, and the molding problem is overcome. The formula comprises, (wt%), 80%-90% of diatomaceous earth; 4%-14% of clay; 0.5%-1.5% of talc; 0.5%-1% of a ceramic body enhancer; 1%-2% of a ceramic sintering aid agent; 0.5%-1% of a superplasticizer; 0.5%-1.5% of nano titanium dioxide and 0.5%-1.5% of tourmaline powder. The production method is as follows: the raw materials are prepared into the slurry by adding of water, and by spray granulation, material distribution, molding and firing, the diatomaceous earth breathing brick with the high humidifying harm-reduction function is obtained. Compared with the prior art, the formula and the molding process are improved, the use amount of the diatomaceous earth is significantly increased, body cracking, deformation, stratification and other phenomena caused by inappropriate moisture content of raw materials, uneven material distribution and excessive local stress of a green body can be avoided, and the diatomaceous earth breathing brick has a higher humidifying harm-reduction function.

Description

technical field [0001] The invention relates to a diatomite breathing brick with high humidity control function and a production method thereof, belonging to the technical field of decorative materials application. Background technique [0002] With the improvement of living standards, interior decoration is becoming more and more refined, and a large number of new decorative materials and daily chemicals have entered people's lives, increasing the sources and types of indoor air pollution. For example: latex paint, wallpaper, floor, furniture, etc. will volatilize formaldehyde, benzene, xylene and other TVOC harmful gases, and the volatilization period is as long as more than 15 years. Living in such an environment will cause dizziness, headache, lethargy and weakness , chest tightness, loss of appetite, nausea and other symptoms can damage the liver and hematopoietic system in severe cases, and even cause cancer. In addition, indoor relative humidity, as one of the import...

AI Technical Summary

Problems solved by technology

[0007] It can be seen from the above representative literature that the amount of diatomite added in the existing breathing brick formula is relatively low, with a weight percentage of 15%-60%, and the amount of diatomite directly affects the humidity adjustment, absorption of formaldehyde and odor of the breathing brick. Etc performance

However, since diatomite is a ridge raw material, its plasticity is poor. If the amount of diatomite is increased, it will not be conducive to the formation of breathing bricks, and there will be phenomena such as poor body strength, easy deformation, delamination, large-sized samples that cannot be formed, and poor strength of breathing bricks.

In addition, the raw material preparation process is primitive, resulting in inconvenient control of moisture content and poor fluidity, which increases the difficulty of forming breathing bricks

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