半焦粉制气化型煤的试验研究

以府谷半焦粉为原料，原料粒度上限为3mm，-1mm含量占70%，在25MPa的成型压力下进行气化型煤成型的试验研究。探究了不同成型水分下型煤的抗压强度，并以型煤产品的抗压强度、热稳定性和型煤生产的经济效益作为评价指标，探究半焦粉制备气化型煤的粘结剂和添加剂选择及用量。试验结果表明，府谷半焦粉的最佳成型水分为25%，其中掺入2.00%淀粉、6.00%膨润土、4%焦煤粉，或者1.00%CMC、4.00%膨润土、4%焦煤粉制成的型煤具有较高的抗压强度和热稳定性，同时也具有较好的经济效益。

Experimental study on binder of semi-coke powder gasification briquette

Taking Fugu semi-coke powder as raw material, the upper limit of the particle size of the raw material is 3 mm, the content of <1 mm is 70%, the molding moisture is 25%, and the gasification briquette molding test is carried out under the molding pressure of 25 MPa. Taking the compressive strength and thermal stability of the briquette products as the evaluation index, the binder selection and dosage of the semi-coke powder to prepare the gasified briquette were investigated. The test results show that the briquette made of 2.00% starch, 6.00% bentonite, 4% coking coal powder or 1.00% CMC, 4.00% bentonite and 4% coking coal powder has higher compressive strength and thermal stability, but also has good economic benefits.