Device and method for evaluating operating conditions of briquetting machine, briquetting machine, method for manufacturing briquette, control device of briquetting machine, control method of briquetting machine, and program

A briquetting machine, comprising:

• a granulation unit that operates under set operating conditions to manufacture briquettes;
• an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions;
• and
• a setting unit that sets the operating conditions based on the evaluation information,
• a storage unit that stores comparison data indicating a relationship between comparison evaluation information, which is the evaluation information to be compared, and comparison operating conditions, which are the operating conditions when the comparison evaluation information is obtained,
• wherein the evaluation information includes a first evaluation parameter and a second evaluation parameter,
• the operating conditions include a plurality of operation parameters,
• the setting unit determines whether or not to change the operating conditions set in advance by using an evaluation value, which is based on center coordinates of a probability ellipse in a case of plotting the evaluation results of the plurality of briquettes on a graph in which a first evaluation parameter is on a first axis and a second evaluation parameter is on a second axis, and
• the setting unit determines, as the operation parameter to be adjusted, the operation parameter having different value in the comparison operating conditions and the operating conditions, which are the operating conditions when the evaluation information acquired by the acquisition unit is obtained, in a case where a distance between a target center point and a straight line is within a predetermined range, the straight line passing through a first center indicated in the comparison data and a second center of the probability ellipse based on the evaluation information acquired by the acquisition unit.