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A platform for research: civil engineering, architecture and urbanism
Concrete admixture water reducing agent preparation method
The invention belongs to the technical field of concrete manufacturing, and particularly relates to a concrete admixture water reducing agent preparation method, which comprises: 1, wood cooking: cooking wood with a sulfite solution to obtain a lignin-containing mixed solution; step 2, desugaring and concentrating: firstly, desugaring the mixed solution to extract alcohol, and concentrating the alcohol through an evaporator to obtain a concentrated solution; and 3, drying and collecting: conveying the concentrated solution to a sprayer, drying with hot air, and collecting the dried water reducing agent, wherein in the step 1, the process of cooking the wood by using the sulfite solution is completed by adopting a concrete admixture water reducing agent preparation device in a matching manner. In the preparation process of the lignosulfonate water reducing agent, sufficient contact between wood and a sulfite solution can be guaranteed, and release of lignin is promoted.
本发明属于混凝土制造技术领域，具体涉及一种混凝土外加剂减水剂制备方法，包括以下步骤：步骤一、蒸煮木材：用亚硫酸盐溶液对木材进行蒸煮，得到含有木质素的混合液；步骤二、脱糖浓缩：先对混合液脱糖提取酒精，通过蒸发器对酒精进行浓缩得到浓缩液；步骤三、干燥收集：将浓缩液输送到喷雾器用热风干燥，收集干燥后的减水剂即可；其中，步骤一中用亚硫酸盐溶液对木材进行蒸煮的过程采用一种混凝土外加剂减水剂制备装置配合完成。本发明在对木质素磺酸盐类减水剂的制备过程中，能够保证木材与亚硫酸盐溶液进行充分接触，促进了木质素的释放。
Concrete admixture water reducing agent preparation method
The invention belongs to the technical field of concrete manufacturing, and particularly relates to a concrete admixture water reducing agent preparation method, which comprises: 1, wood cooking: cooking wood with a sulfite solution to obtain a lignin-containing mixed solution; step 2, desugaring and concentrating: firstly, desugaring the mixed solution to extract alcohol, and concentrating the alcohol through an evaporator to obtain a concentrated solution; and 3, drying and collecting: conveying the concentrated solution to a sprayer, drying with hot air, and collecting the dried water reducing agent, wherein in the step 1, the process of cooking the wood by using the sulfite solution is completed by adopting a concrete admixture water reducing agent preparation device in a matching manner. In the preparation process of the lignosulfonate water reducing agent, sufficient contact between wood and a sulfite solution can be guaranteed, and release of lignin is promoted.
本发明属于混凝土制造技术领域，具体涉及一种混凝土外加剂减水剂制备方法，包括以下步骤：步骤一、蒸煮木材：用亚硫酸盐溶液对木材进行蒸煮，得到含有木质素的混合液；步骤二、脱糖浓缩：先对混合液脱糖提取酒精，通过蒸发器对酒精进行浓缩得到浓缩液；步骤三、干燥收集：将浓缩液输送到喷雾器用热风干燥，收集干燥后的减水剂即可；其中，步骤一中用亚硫酸盐溶液对木材进行蒸煮的过程采用一种混凝土外加剂减水剂制备装置配合完成。本发明在对木质素磺酸盐类减水剂的制备过程中，能够保证木材与亚硫酸盐溶液进行充分接触，促进了木质素的释放。
Concrete admixture water reducing agent preparation method
一种混凝土外加剂减水剂制备方法
CHEN YOUYING (author) / XIE GUANGHUI (author)
2021-01-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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