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A platform for research: civil engineering, architecture and urbanism
Method for preparing ceramsite from oily sludge
The invention provides a method for preparing ceramsite from oily sludge. The method comprises the following steps: 1, uniformly mixing the oily sludge with a conditioning agent, and granulating; secondly, the particles prepared in the first step are subjected to anaerobic pyrolysis, the anaerobic pyrolysis temperature ranges from 300 DEG C to 700 DEG C, and the oil content of the particles obtained after anaerobic pyrolysis is lower than 1%; and 3, carrying out high-temperature calcination on the particles subjected to anaerobic pyrolysis in the step 2, wherein the temperature of a high-temperature calcination feeding end is not lower than 800 DEG C. In the ceramsite preparation process, dioxin can be avoided, and the environment-friendly effect is good; the prepared ceramsite is wide in application, and resource utilization of the oily sludge is realized.
本发明提供一种含油污泥制备陶粒的方法，包括：第一步，将含油污泥与调制剂混合均匀后进行制粒；第二步，将第一步制得的颗粒进行无氧热解，所述无氧热解温度300~700℃，经过无氧热解后颗粒的含油率低于1%；第三步，将第二步无氧热解后的颗粒进行高温煅烧，所述高温煅烧进料端的温度不低于800℃。本发明在制备陶粒过程中，可以实现避免产生二噁英，环保效果好；制备的陶粒用途广泛，实现含油污泥的资源化利用。
Method for preparing ceramsite from oily sludge
The invention provides a method for preparing ceramsite from oily sludge. The method comprises the following steps: 1, uniformly mixing the oily sludge with a conditioning agent, and granulating; secondly, the particles prepared in the first step are subjected to anaerobic pyrolysis, the anaerobic pyrolysis temperature ranges from 300 DEG C to 700 DEG C, and the oil content of the particles obtained after anaerobic pyrolysis is lower than 1%; and 3, carrying out high-temperature calcination on the particles subjected to anaerobic pyrolysis in the step 2, wherein the temperature of a high-temperature calcination feeding end is not lower than 800 DEG C. In the ceramsite preparation process, dioxin can be avoided, and the environment-friendly effect is good; the prepared ceramsite is wide in application, and resource utilization of the oily sludge is realized.
本发明提供一种含油污泥制备陶粒的方法，包括：第一步，将含油污泥与调制剂混合均匀后进行制粒；第二步，将第一步制得的颗粒进行无氧热解，所述无氧热解温度300~700℃，经过无氧热解后颗粒的含油率低于1%；第三步，将第二步无氧热解后的颗粒进行高温煅烧，所述高温煅烧进料端的温度不低于800℃。本发明在制备陶粒过程中，可以实现避免产生二噁英，环保效果好；制备的陶粒用途广泛，实现含油污泥的资源化利用。
Method for preparing ceramsite from oily sludge
一种含油污泥制备陶粒的方法
HE QI (author) / SHEN JIASHU (author)
2022-11-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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