A method for detecting water absorption of coke

Abstract

The invention discloses a method for detecting water absorption of coke, comprising the following steps: (1) pulverizing the coke to 10-20 mm, sieving it horizontally with a 10 mm square-hole sieve, and taking the coke on the sieve as a sample; Put the sample into a drying box to dry, take out and cool down to room temperature to get dry coke; (3) add water to the dry coke to submerge the dry coke, and soak it; (4) filter the water out of the soaked coke, and use a cotton cloth to remove the water on the surface of the coke. Absorb it, and weigh the wet coke mass; (5) Calculate coke water absorption: coke water absorption = (wet coke mass - sample mass) ÷ sample mass × 100%. The method and the required equipment of the invention are simple and low in cost, and the gas permeability and combustion performance of the coke are evaluated by detecting the water absorption of the coke to guide the production.

Description

technical field

[0001] The invention relates to a method for detecting water absorption of coke. Background technique

[0002] At present, with the continuous development of the steel industry and the continuous expansion of the production capacity of the steel industry, the demand for coke is also increasing, and the coking coal is increasingly in short supply. Countries all over the world are seeking to use weakly caking and non-caking coal for coking. The new technology is born to expand the resources of coking coal and to apply coke production technology. Tamping coke meets the requirements of blast furnace coke to a certain extent, but because of the production process, the density of ramming coke is higher than that of metallurgical coke, and it is more compact. After being loaded into the blast furnace, the gas permeability of the blast furnace is affected to a certain extent, reducing Smelting strength. The porosity of coke and the air permeability index of coke ca...