Method for improving coking property of low-coalification coal

The invention provides the method of improving coking capacity, comprising the following steps: 1 disintegrating the coal which is low degree of coalification in crusher until the grain diameter is below 3mm; 2 rapid heating the coal which is low degree of coalification in the gas heat carrier device or solid heat carrier device. 3 rapid cooling the high-heat coal. The said thermal shock treatment method improves the caking capacity and coking capacity of coal, and it is good to use the low degree of coalification coal which is cheap and abundant instead of the binding coal which is lack. The method also possesses the advantages of increasing production, saving energy, environmental protection, and so on.