A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of ceramsite preparation, discloses a method for preparing high-strength ceramsite from oil sludge, and particularly relates to a method for preparing ceramsite by directly utilizing oil sludge without adding other raw material components in a preparation process. The method comprises the specific implementation steps of (1) for the oil sludge with the oil content higher than 15%, recovering crude oil in the oil sludge by adopting a thermochemical washing mode, reducing the oil content to be 5% or less, and then carrying out solid-liquid separation to obtain oil sludge residues; (2) mixing the oil sludge residues with oil sludge with low oil content, adding a high-temperature binder, and controlling the water content to be about 30% to prepare a ceramsite green body; (3) drying the ceramsite green body to reduce the water content to 5% or below; and (4) firing the dried ceramsite green body at 1000-1150 DEG C to obtain the high-strength ceramsite product. The treatment process is simple, the method has good applicability to various oil sludge, other raw material components do not need to be added, and thorough harmless treatment and resource utilization of the oil sludge are achieved.
本发明涉及陶粒制备技术领域，公开了一种油泥制备高强陶粒的方法，制备过程无需添加其他原料组分，可直接利用油泥制备陶粒的方法。具体实施步骤为：(1)对于含油率高于15％的油泥，采用热化学水洗的方式回收其中的原油，将含油率降至5％以下，然后进行固液分离得到油泥渣；(2)将上述油泥渣和低含油率的油泥混合，并加入高温粘结剂，控制含水率30％左右，制备陶粒坯体；(3)陶粒坯体进行烘干，将含水率降至5％以下；(4)烘干后的陶粒坯体在1000℃‑1150℃烧制，得到高强陶粒产品。本发明处理过程简单，对各种油泥都有很好的适用性，不需要添加其他原料组分，实现了油泥的彻底无害化处置和资源化利用。
The invention relates to the technical field of ceramsite preparation, discloses a method for preparing high-strength ceramsite from oil sludge, and particularly relates to a method for preparing ceramsite by directly utilizing oil sludge without adding other raw material components in a preparation process. The method comprises the specific implementation steps of (1) for the oil sludge with the oil content higher than 15%, recovering crude oil in the oil sludge by adopting a thermochemical washing mode, reducing the oil content to be 5% or less, and then carrying out solid-liquid separation to obtain oil sludge residues; (2) mixing the oil sludge residues with oil sludge with low oil content, adding a high-temperature binder, and controlling the water content to be about 30% to prepare a ceramsite green body; (3) drying the ceramsite green body to reduce the water content to 5% or below; and (4) firing the dried ceramsite green body at 1000-1150 DEG C to obtain the high-strength ceramsite product. The treatment process is simple, the method has good applicability to various oil sludge, other raw material components do not need to be added, and thorough harmless treatment and resource utilization of the oil sludge are achieved.
本发明涉及陶粒制备技术领域，公开了一种油泥制备高强陶粒的方法，制备过程无需添加其他原料组分，可直接利用油泥制备陶粒的方法。具体实施步骤为：(1)对于含油率高于15％的油泥，采用热化学水洗的方式回收其中的原油，将含油率降至5％以下，然后进行固液分离得到油泥渣；(2)将上述油泥渣和低含油率的油泥混合，并加入高温粘结剂，控制含水率30％左右，制备陶粒坯体；(3)陶粒坯体进行烘干，将含水率降至5％以下；(4)烘干后的陶粒坯体在1000℃‑1150℃烧制，得到高强陶粒产品。本发明处理过程简单，对各种油泥都有很好的适用性，不需要添加其他原料组分，实现了油泥的彻底无害化处置和资源化利用。
Method for preparing sludge ceramsite from domestic sludge
| European Patent Office | 2022
Method for preparing porous ceramsite from sludge and obtained porous ceramsite
| European Patent Office | 2022