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A platform for research: civil engineering, architecture and urbanism
Portland cement clinker produced from municipal sludge and process thereof
The invention discloses a Portland cement clinker produced from municipal sludge and a process thereof, and relates to the technical field of cement, a raw material comprises the following raw materials by mass: 82.5-86.2% of limestone, 3.5-4.0% of pyrite slag, 0.5-7% of black coal gangue, and 6.5-9.8% of wet fly ash; the addition amount of the sludge is less than or equal to 2% of the total mass of the raw materials, and the sludge is urban sewage plant sludge; the process comprises the following steps: proportioning the raw materials, adding the raw materials into a raw material roller press, and homogenizing; adding the raw material into a decomposing furnace, dispersing the sludge, pumping into the decomposing furnace for incineration treatment to obtain a mixture, adding the mixture into a rotary kiln, and heating to obtain the Portland cement clinker. The method has the beneficial effects that the municipal sludge is used as the raw material and is used for producing the Portland cement clinker together with the raw material, so that the use amount of the raw material can be reduced, mineral resources are saved, and the production cost is reduced; and the municipal sludge is turned into wealth to serve as a production raw material, so that contribution is made to environmental protection.
本发明公开了利用城市污泥生产硅酸盐水泥熟料及其工艺，涉及水泥技术领域，生料以质量百分比计包括如下原料：石灰石82.5‑86.2％、硫铁矿渣3.5‑4.0％、黑煤矸石0.5‑7％、湿粉煤灰6.5‑9.8％；污泥的添加量小于或等于生料总质量的2％，所述污泥为城市污水厂污泥；将生料配料后加入原料辊压机，均化；将生料加入分解炉，将污泥进行分散处理，泵入分解炉中焚烧处理，得到混合料，将混合料加入回转窑，加热得到硅酸盐水泥熟料。本发明的有益效果是本发明通过将城市污泥作为原料与生料一起用于生产硅酸盐水泥熟料，从而不仅可以减少生料使用量，节约了矿产资源，降低了生产成本；而且将城市污泥变废为宝作为生产原料，为环保作出了贡献。
Portland cement clinker produced from municipal sludge and process thereof
The invention discloses a Portland cement clinker produced from municipal sludge and a process thereof, and relates to the technical field of cement, a raw material comprises the following raw materials by mass: 82.5-86.2% of limestone, 3.5-4.0% of pyrite slag, 0.5-7% of black coal gangue, and 6.5-9.8% of wet fly ash; the addition amount of the sludge is less than or equal to 2% of the total mass of the raw materials, and the sludge is urban sewage plant sludge; the process comprises the following steps: proportioning the raw materials, adding the raw materials into a raw material roller press, and homogenizing; adding the raw material into a decomposing furnace, dispersing the sludge, pumping into the decomposing furnace for incineration treatment to obtain a mixture, adding the mixture into a rotary kiln, and heating to obtain the Portland cement clinker. The method has the beneficial effects that the municipal sludge is used as the raw material and is used for producing the Portland cement clinker together with the raw material, so that the use amount of the raw material can be reduced, mineral resources are saved, and the production cost is reduced; and the municipal sludge is turned into wealth to serve as a production raw material, so that contribution is made to environmental protection.
本发明公开了利用城市污泥生产硅酸盐水泥熟料及其工艺，涉及水泥技术领域，生料以质量百分比计包括如下原料：石灰石82.5‑86.2％、硫铁矿渣3.5‑4.0％、黑煤矸石0.5‑7％、湿粉煤灰6.5‑9.8％；污泥的添加量小于或等于生料总质量的2％，所述污泥为城市污水厂污泥；将生料配料后加入原料辊压机，均化；将生料加入分解炉，将污泥进行分散处理，泵入分解炉中焚烧处理，得到混合料，将混合料加入回转窑，加热得到硅酸盐水泥熟料。本发明的有益效果是本发明通过将城市污泥作为原料与生料一起用于生产硅酸盐水泥熟料，从而不仅可以减少生料使用量，节约了矿产资源，降低了生产成本；而且将城市污泥变废为宝作为生产原料，为环保作出了贡献。
Portland cement clinker produced from municipal sludge and process thereof
利用城市污泥生产硅酸盐水泥熟料及其工艺
MA JIANJUN (author) / LI FENGWU (author) / WANG MEITAO (author) / LIU JIANG (author)
2021-08-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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