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High-strength ceramsite containing sludge ash and preparation method thereof
The invention belongs to the technical field of artificial light aggregate, and particularly relates to high-strength ceramsite containing sludge ash and a preparation method of the high-strength ceramsite. The high-strength ceramsite is prepared from the following raw materials in percentage by weight: 10 to 90 percent of sludge ash and 10 to 90 percent of engineering spoil, the preparation method of the ceramsite comprises the following steps: S1, crushing the sludge ash and the engineering spoil according to a ratio, and mixing; S2, grinding an obtained mixture until the screen residue of 80 microns is 15-30%, and preparing raw material spheres with the size of 5-20mm by using a disc granulator; S3, drying the raw material spheres; S4, putting the dried raw material spheres into a muffle furnace, heating from room temperature to 200 DEG C, and keeping the temperature; raising the temperature from 200 DEG C to 600-700 DEG C and then keeping the temperature; and finally, increasing the temperature to 1080-1200 DEG C again, carrying out heat preservation for 20-30 min, and then carrying out natural cooling to the normal temperature. The method solves the problem that high-strengthceramsite cannot be prepared from municipal sludge in a large mixing amount due to high water content and high organic matter content.
本发明属于人造轻集料技术领域，特别涉及一种含有污泥灰渣的高强陶粒及其制备方法。该陶粒的原料包括10‑90wt％的污泥灰渣及10‑90wt％的工程弃土；该陶粒的制备方法包括如下步骤：S1、将污泥灰渣和工程弃土按照配比破碎后混合；S2、将混合料粉磨至80μm筛余15％‑30％，用圆盘造粒机制成5‑20mm大小的生料球体；S3、将生料球体烘干；S4、将烘干过得生料球体放入马弗炉中，从室温升温至200℃后保温；再从200℃升温至600‑700℃后保温；最后由再升温至1080‑1200℃保温20‑30min后自然冷却到常温。本发明解决了城市污泥因含水率高及有机质含量高而无法大掺量制备高强陶粒的难题。
High-strength ceramsite containing sludge ash and preparation method thereof
The invention belongs to the technical field of artificial light aggregate, and particularly relates to high-strength ceramsite containing sludge ash and a preparation method of the high-strength ceramsite. The high-strength ceramsite is prepared from the following raw materials in percentage by weight: 10 to 90 percent of sludge ash and 10 to 90 percent of engineering spoil, the preparation method of the ceramsite comprises the following steps: S1, crushing the sludge ash and the engineering spoil according to a ratio, and mixing; S2, grinding an obtained mixture until the screen residue of 80 microns is 15-30%, and preparing raw material spheres with the size of 5-20mm by using a disc granulator; S3, drying the raw material spheres; S4, putting the dried raw material spheres into a muffle furnace, heating from room temperature to 200 DEG C, and keeping the temperature; raising the temperature from 200 DEG C to 600-700 DEG C and then keeping the temperature; and finally, increasing the temperature to 1080-1200 DEG C again, carrying out heat preservation for 20-30 min, and then carrying out natural cooling to the normal temperature. The method solves the problem that high-strengthceramsite cannot be prepared from municipal sludge in a large mixing amount due to high water content and high organic matter content.
本发明属于人造轻集料技术领域，特别涉及一种含有污泥灰渣的高强陶粒及其制备方法。该陶粒的原料包括10‑90wt％的污泥灰渣及10‑90wt％的工程弃土；该陶粒的制备方法包括如下步骤：S1、将污泥灰渣和工程弃土按照配比破碎后混合；S2、将混合料粉磨至80μm筛余15％‑30％，用圆盘造粒机制成5‑20mm大小的生料球体；S3、将生料球体烘干；S4、将烘干过得生料球体放入马弗炉中，从室温升温至200℃后保温；再从200℃升温至600‑700℃后保温；最后由再升温至1080‑1200℃保温20‑30min后自然冷却到常温。本发明解决了城市污泥因含水率高及有机质含量高而无法大掺量制备高强陶粒的难题。
High-strength ceramsite containing sludge ash and preparation method thereof
一种含有污泥灰渣的高强陶粒及其制备方法
HAN HUI (author) / ZHANG MINGFEI (author) / CHEN CHANGHUA (author)
2020-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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