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发明公开
CN102815921A 一种粘土/秸秆纤维复合微孔保温砖及其制备方法 无效 - 驳回

一种粘土/秸秆纤维复合微孔保温砖及其制备方法
摘要：
本发明提供了一种粘土/秸秆纤维复合微孔保温砖及其制备方法。本发明的保温砖由20~50份的秸秆纤维和50~80份的粘土组成。秸秆纤维为麦秸秆、棉花杆、稻杆和玉米杆的主干部分，秸秆纤维的长度小于3mm。本发明还提供了一种保温砖的制备方法，具体步骤如下：将秸秆纤维和粘土干混后，加入水搅拌均匀，经制砖机械挤出成厚度为10~40mm的面砖，干燥后在窑炉中烧结即可。本发明所制备出的保温砖具有孔隙率高、质量轻、导热系数低和成本低的优点；而且该保温砖与原墙体粘结不需要特殊处理；同时，由于秸秆的大量使用，使农田废弃物得到了有效地利用，既节能又环保。
摘要（英）：

The invention provides a clay/straw fiber composite microporous thermal insulation brick and a preparation method of the thermal insulation brick. The brick comprises 20-50 parts of straw fiber, and 50-80 parts of clay. The straw fiber comes from main stem of wheat straw, cotton straw, rice straw and corn stalk, and has length smaller than 3 mm. The preparation method of the thermal insulation brick comprises the steps of dry-mixing the straw fiber and clay, adding water, stirring, extruding to form 10-40 mm thick face brick by brick-making machinery, drying, and sintering in a kiln. The brick has the advantages of high porosity, light weight, low thermal conductivity, and low cost. No special treatment is needed before adhesion of the thermal insulation brick and original wall body. Large amount usage of straw effectively utilizes agricultural wastes to save energy and protect environment.

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