| 摘要 |
Disclosed is a method for producing a heat insulating material using fiber sludge and paper powder, the method comprising: an immersion step (S1) for inserting and immersing fiber sludge and paper powder in a container containing plasticizer for 2-5 minutes; a primary dehydration step (S2) for taking out the fiber sludge and paper powder contained in the container in the immersion step and dehydrating the fiber sludge and paper powder with water twice so as to remove dust and impurities of the fiber sludge and paper powder and the plasticizer; a disinfection step (S3) for disinfecting the fiber sludge and paper powder dehydrated in the primary dehydration step by inserting the same into a container containing an antiseptic solution in which a naphthalene solution and water are mixed; a secondary dehydration step (S4) for dehydrating the fiber sludge and paper powder disinfected in the disinfection step three times; an aging step (S5) for drying the fiber sludge and paper powder dehydrated in the secondary dehydration step for two hours and then aging the same for five days after sealing the same; a grinding step (S6) for inserting the fiber sludge and paper powder aged in the aging step into a grinder and grinding the same; a kneading step (S7) for producing a dough mixture by mixing a flame retardant solution with 19 kg of fiber sludge powder and 1 kg of the paper powder ground in the grinding step and kneading the mixture; a drying step (S8) for drying the dough mixture kneaded in the kneading step; a grain processing step (S9) for processing the dried dough mixture as grains having a diameter of 0.5mm-3mm; a spray coating material processing step (S10) for processing a spray coating material by mixing and kneading the processed grains, 20 kg of water, 3 kg of an edible preservative, a waterproof agent, and 2 kg of a synthetic resin solution; and a heat insulating material producing step (S11) for producing a heat insulating material using the processed spray coating material. |
