Tourmaline monolithic honeycomb ceramic and preparation method thereof

Abstract

The invention discloses a tourmaline integral honeycomb ceramic and the ceramic mainly comprises the following components by weight percent: 10-75% of tourmaline, 2-20% of clay, 2-40% of fluxing agent and 1-30% of auxiliary material. The preparation method of the tourmaline integral honeycomb ceramic comprises the following steps: adding tourmaline, clay, the fluxing agent, the auxiliary materialand a dry powder forming agent in a medium mill in proportion to grind and mix so as to obtain a mixture, then adding a appropriate amount of water and a liquid forming agent in the mixture to knead and obtain mud, granulating the mud, aging, extruding to obtain mud sections, moulding the mud sections, performing microwave forming, drying to prepare a semi-finished product, and placing the semi-finished product in a kiln at 500-850 DEG C to fire. Compared with the existing tourmaline products, the characteristics of the existing honeycomb ceramics, namely large specific surface area and porescan be ensured, the effect of tourmaline can be extremely exerted, the amount of tourmaline can be greatly reduced and the ceramic has good energy-saving effect. The energy consumption of the tourmaline integral honeycomb ceramic is one tenth of the energy consumption of the tourmaline ball fired at the same temperature.

Description

technical field [0001] The invention belongs to inorganic non-metallic materials, in particular to a tourmaline monolithic honeycomb ceramic. Background technique [0002] Tourmaline is the general name of tourmaline minerals, which is a silicate mineral with a ring structure of aluminum, sodium, iron, magnesium and lithium characterized by boron, also known as tourmaline. The color varies depending on the composition, including black, brown, red and blue-green. Because tourmaline has a unique heteropolar symmetric structure (typically pyroelectricity and piezoelectricity), it has many functions and uses: [0003] One is to stimulate the generation of air negative ions. When the tourmaline is in contact with the air, the electric field of the tourmaline acts on the water molecules in the air (the electrolysis voltage of the water molecules is 1.23 volts), making them ionized into OH - ,OH - Attracts water molecules in the air to form OH - (H 2 O) n , increase the co...

AI Technical Summary

Problems solved by technology

For example, someone makes tourmaline into powder and paints it on the wall together with paint to generate negative ions, radiate far-infrared rays and shield electromagnetic waves; Mix with hard binder, etc., and then apply it on the surface of various components to emit far-infrared rays, negative ions, and optimize water and gas, etc., but it is not resistant to erosion, has poor durability, and the tourmaline layer is easy to fall off, and The specific surface area per unit volume is small, the processing efficiency is low, and the amount of tourmaline is large; for another example, some people make tourmaline into ceramic balls, ceramic rings, ceramic utensils, and enamel utensils for drinking water, beverages, wine, etc. Optimized for treatment, or use in a sauna to generate negative ions

Although this solves the problem of durability in use, there are also the problems of small specific surface area per unit volume, low efficiency and large amount of tourmaline; for another example, in order to improve the contact surface of tourmaline with gas and liquid, people have developed Tourmaline-based porous ceramics (such as ceramic filters) and tourmaline-based foamed ceramics, but they still have problems such as large fluid flow resistance, high energy consumption, and easy blockage; someone else applied for the publication number CN101182234 (the application number is: 2007101684785) method patent, although it can improve the use efficiency of tourmaline, it has the following disadvantages: A. The rib wall thickness of honeycomb ceramics is only 0.1~0.3㎜, which itself is a very thin layer, and then impregnated with a layer of electrical The stone slurry layer makes the process complicated, increases labor and energy consumption, and leads to high cost; B. Due to the fluidity of tourmaline slurry, it is inconvenient to control the operation when the honeycomb ceramics are impregnated with tourmaline slurry, or the slurry is impregnated into The tourmaline coating formed after the honeycomb ceramics is too thick, resulting in the small through-holes (generally 1~3mm in size) becoming narrower or even blocking the through-holes; or not soaked enough to prevent the tourmaline from being soaked Slurry, or impregnated with slurry but has little or no effect because the tourmaline layer is too thin

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