Composite ceramic prefabricated component and preparation method thereof

Abstract

A composite ceramic prefabricated component comprises a heatproof ceramic blank and high performance microcrystalline ceramic glaze that is combined with the surface of the heatproof ceramic blank. The heatproof ceramic blank is prepared from high aluminum bauxite clinker I, high aluminum bauxite clinker II, waste mullite bricks, cordierite, fused quartz, silica powder, and high alumina cement. The high performance microcrystalline ceramic glaze is prepared from petalite, lepidolite, potash feldspar, soft kaolin, calcined kaolin, wollastonite, calcined talcum, quartz, barium carbonate, and zirconia. Compared with the prior art, the surface of the composite ceramic prefabricated component is provided with the high performance microcrystalline ceramic glaze; during the using process, the composite ceramic prefabricated component will not be polluted and is easy to clean, the later period maintenance cost is largely reduced, the thermal conductivity coefficient is lower, the prefabricatedcomponent has a better terminal insulation effect, and compared with a conventional material, the temperature of the external wall of the using parts can be reduced by 20 to 30 DEG C.

Description

technical field [0001] The invention relates to the technical field of ceramic processing, in particular to a composite ceramic prefabricated part, in particular to a ceramic prefabricated part with low thermal conductivity, long life, wear resistance and self-cleaning performance. Background technique [0002] At present, traditional coke oven doors and rising pipes are all made of small clay or cordierite refractory bricks. Because there are many joints, coke and carbon deposits are easy to accumulate in the joints during use. As the reaction is repeated, the joints are easily enlarged. With the expansion of the joints, the airtightness and thermal insulation performance of the furnace door decline rapidly, and smoke, dust, and coke seepage follow, causing environmental pollution and waste. energy. Moreover, the mechanical strength and thermal shock performance of traditional furnace door materials are poor, the service life is not long, and the later maintenance is frequ...

AI Technical Summary

Problems solved by technology

[0002] At present, traditional coke oven doors and rising pipes are all made of small clay or cordierite refractory bricks. Because there are many joints, coke and carbon deposits are easy to accumulate in the joints during use. As the reaction is repeated, the joints are easily enlarged. With the expansion of the joints, the airtightness and thermal insulation performance of the furnace door decline rapidly, and smoke, dust, and coke seepage follow, causing environmental pollution and waste. energy

Moreover, the mechanical strength and thermal shock performance of traditional furnace door materials are poor, the service life is not long, and the later maintenance is frequent. higher maintenance costs

[0003] The traditional rising pipe is mostly built with small clay or cordierite bricks in the lower part, and cast iron pipes are mostly used in the upper bridge pipe, which has problems such as short life, poor airtightness and thermal insulation performance, easy coking and carbon deposition, etc., which is easy to cause gas leakage and pollute the environment , and there are potential safety hazards, difficult maintenance in the later period, and high maintenance costs

[0004] Traditional coal filling holes mostly use clinker bricks, which have poor heat insulation effect and serious energy waste. After a period of use, tar is easy to stick, resulting in poor airtightness, smoke and fire, etc., which deteriorates the working environment of the furnace top and causes environmental pollution

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