Ultra-thick foamed ceramic plate and production process

Abstract

The invention provides an ultra-thick foamed ceramic plate and a production process thereof, and belongs to the technical field of foamed ceramics. The components of the ultra-thick foamed ceramic plate comprise a raw material, a foaming agent, a foam stabilizer and a thermal inert modifier, wherein the components of the raw material include 40-60 parts of fluorite tailings, 5-15 parts of potassium feldspar, 10-20 parts of bluestone powder, and 15-30 parts of waste porcelain powder; the foaming agent is at least one of silicon carbide, carbon powder, calcium carbonate, manganese dioxide, sodium nitrate and potassium nitrate; the foam stabilizer is at least one of borax, boric acid, zinc oxide and barium carbonate; the thermal inert modifier is at least one of high borosilicate glass, potash-lime glass, silica, alumina and glass fiber powder; and the mass percentage ratio of the raw material to the foaming agent to the foam stabilizer to the thermal inert modifier is 100:(0.5-2):(1-3):(2-10). The ultra-thick foamed ceramic plate of the invention can be directly used as a wall material of a building partition wall, is less in leftovers of a unit finished material, and is used for processing large-sized special-shaped parts.

Description

technical field [0001] The invention relates to the field of foamed ceramics, in particular to a wall material directly used as a building partition wall, reducing the leftover material of a unit finished product, an ultra-thick foamed ceramic plate for processing large-sized special-shaped parts, and a production process. Background technique [0002] Foamed ceramics is a kind of honeycomb ceramic material mixed with solid phase and gas phase obtained by mixing foaming agents and modifiers with various raw materials through high-temperature softening and foaming. It has heat preservation, heat insulation, fire prevention, moisture resistance, Lightweight and other characteristics, mainly used in the field of construction and industrial heat insulation, is a widely used inorganic non-metallic silicate material. [0003] There are many technologies for recycling fluorite tailings of foamed ceramics. The main process is: the raw materials are ground to obtain suitable pellets,...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention: the thickness of the existing foamed ceramic plate greater than 20 cm will cause the difference between the material center temperature and the external temperature to be too large, the internal and external foaming will be uneven, and the internal and external temperature difference will be too large during the cooling process. , leading to uneven distribution of thermal stress and foaming ceramics to cause plate breakage, low yield and too much leftover material

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