Method for preparing cement clinker in laboratory

The invention discloses a method for preparing a cement clinker in a laboratory. The method comprises the following steps: A, preparing a raw material, namely independently grinding different raw materials, screening, mixing, putting water into coal powder, kneading into balls, putting the balls into a high-temperature furnace, and mixing weighed materials and coal ash so as to obtain raw material powder; B, preparing a test sample, namely putting water into the raw material powder, uniformly mixing, putting into a mold, pressing, demolding, and drying the test sample in a drying oven; C, calcining a clinker, namely putting the dried test sample into a high-temperature furnace, and calcining according to procedures of staged heating and heat preservation; and D, cooling the clinker, namely performing sudden cooling by using a cooling fan, crushing the cooled clinker, uniformly mixing, and performing powder milling on the clinker, a retarded adhesive material and a mixing material, thereby obtaining expected c