Light fire brick and preparing method thereof

A refractory brick and lightweight technology, applied in the field of lightweight refractory bricks and their preparation, can solve the problems of low strength, high cost, affecting the economic benefits of tunnel kilns and oil shaft kilns, etc., and achieve high refractory temperature, low cost, Long service life effect
CN1530347AInactive Publication Date: 2004-09-22ζŽδ½œθŒƒ
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ζŽδ½œθŒƒ
Publication Date
2004-09-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A light-weight refractory brick burnt in tunnel kiln and oil-burning vertical kiln is prepared from bauxite, phosphoric acid, magnesium bihydrogen phosphate, aluminate cement, and H2O2. Said bauxite contains Al2O3 (more than 80%), magnesium oxdie (less than 0.25%), potassium oxide (less than 0.25%), sodium oxide (less than 0.25%), and calcium oxide (less than 0.25%). Its advantages are low cost, high resistance to high temp, high insulating effect, high strength, and long service life.
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Description

technical field

[0001] The invention relates to a lightweight refractory brick for a tunnel kiln and an oil shaft kiln and a preparation method thereof. Background technique

[0002] 1700~1800℃ tunnel kiln and oil shaft kiln above 1800℃ are big energy consumers. A high temperature tunnel kiln consumes more than 10 tons of heavy oil every day. lightweight refractory bricks. At present, the cost of lightweight refractory bricks produced by the polystyrene bead method is extremely high, and the ex-factory price is about 15,000 to 20,000 yuan / m 3 , and the strength is not high, which has seriously affected the economic benefits of the tunnel kiln and oil shaft kiln industries. Therefore, there is an urgent need for a low-cost, high-strength lightweight refractory brick and a feasible preparation method thereof. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a lightweight refractory brick with low cost and high str...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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