METHOD FOR EVALUATING THERMAL PLASTICITIES OF COAL AND CAKING ADDITIVES AND METHOD FOR PRODUCING COKE

摘要

Provided are a method for evaluating the thermal plasticities of coal and a caking additive, which enables more accurate evaluation of the thermal plastitities of the coal and the caking additive using a simple and easy method by measuring the thermal plastitities of the coal and the caking additive in the state that simulates the environment around coal and a caking additive that are softened and melted in a coke furnace, and a method for producing coke using the measured values thereof. A method for evaluating the thermal plasticities of coal and a caking additive, comprising: filling coal or a caking additive into a container to create a sample (1); disposing a material (2) having a through-hole through the top and bottom surfaces thereof on the sample (1); heating the sample (1) at a predetermined heating rate while the sample (1) and the material (2) having the through-hole through the top and bottom surfaces thereof maintain constant volumes or a constant load is applied; measuring the penetration distance of the melted sample which has penetrated into the through-hole; and evaluating the thermal plasticity of the sample using the measured value is used. Alternatively, the sample (1) is heated at a predetermined heating rate while the sample (1) and the material (2) having a through-hole through the top and bottom surfaces thereof maintain constant volumes, the pressure of the sample transmitted through the material (2) having the through-hole through the top and bottom surfaces thereof is measured, and the thermal plasticity of the sample is evaluated using the measured value. 48606271 (GHMatters) P92661.AU.1 12/11/13