Method for preparing cement clinker by using oil shale waste residues
A technology of oil shale waste residue and cement clinker, which is applied in the field of building materials, can solve problems such as pollution, land occupation and the environment, and achieve the effects of avoiding a large amount of accumulation, reasonable mineral composition and strength, and reducing production costs
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Embodiment 1
[0010] ①Mix oil shale waste residue, limestone, iron tailings sand and molding sand according to the following ratio:
[0011] Limestone: 82%; Shale waste residue: 14%; Iron tailings sand: 1.5%; Molding sand: 2.5%;
[0012] ②Grind the mixture obtained in step 1 into 80μm square hole sieve with less than 5% of the raw meal, then put the raw meal into the kiln for calcination, and calcine at 1350-1450°C for 15-20 minutes, and cool it after leaving the kiln to obtain cement clinker.
Embodiment 2
[0013] Embodiment 2: Limestone: 82%, oil shale waste residue: 13%, iron tailings: 2.0, molding sand: 3.0
[0014] ①Mix oil shale waste residue, limestone, iron tailings sand and molding sand according to the following ratio:
[0015] Limestone: 82%; Shale waste: 13%; Iron tailings: 2.0%; Molding sand: 3.0%;
[0016] ②Grind the mixture obtained in step 1 into 80μm square hole sieve with less than 5% of the raw meal, then put the raw meal into the kiln for calcination, and calcine at 1350-1450°C for 15-20 minutes, and cool it after leaving the kiln to obtain cement clinker.
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