Removal method of lye in grass embryo

Abstract

The invention discloses a method for removing alkali liquor in straw raw materials. The method comprises the following steps that (1) the straw raw materials after being steamed with alkali liquor are spread out; (2) gunny bags are laid on the straw raw materials; (3) tap water is splashed onto the gunny bags, wherein the water permeates through the straw raw materials through holes in the gunny bags and washes away the alkali liquor in the straw raw materials. By laying the gunny bags on the straw raw materials, in this way, the water splashed on the gunny bags can evenly and slowly permeate through the straw raw materials and wash away the alkali liquor in the straw raw materials. Compared with the prior art, in the process of removing the alkali liquor in the steamed straw raw materials, it thoroughly gets rid of the situation of totally being dependent on rainfall flushing. Besides, by the adoption of artificial flushing with water, washing time and duration can be effectively controlled, so that it is ensured that the alkali liquor in the straw raw materials is removed thoroughly, and the production quality of the processed straw is improved.

Description

technical field [0001] The invention relates to the field of papermaking, in particular to a method for pretreating papermaking raw materials. Background technique [0002] The chemical composition of rice straw varies with the place of origin, soil conditions and varieties of rice. Shatian rice straw in southern Anhui, especially in the mountainous area of ​​Jing County, has long chemical composition fibers and low lignin content, making it the most suitable raw material for making rice paper. [0003] The main raw materials of rice paper are sandalwood bark and prairie grass. The so-called prairie grass is to soak the straw in lime water, steam it with lye once, spread it on the rocky beach, expose it to the sun and rain for a long time, turn it over and over again, Steaming, second exposure to the sun and rain can produce liao grass. The so-called lye is sodium carbonate solution. The main purpose of rain is to remove the lye in the grass embryo after steaming. Grass em...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prior art, the raw material of rice straw needs to be exposed to the sun and rain twice in the process of processing prairie grass. This technical solution has the following technical defects: 1. It takes a long time to process straw into prairie grass with the help of weather conditions, and the efficiency is low; 2. Once it is sunny and rainy for a long time, the processing time of the grass will be extended, which will affect the production progress; 3. If the rain is not clear for a long time, the grass embryos will be spread out for too long, which may cause the grass embryos to rot, resulting in a decline in the quality of the grass grass products; 4. 1. Spreading grass embryos on the rocky beach not only needs to be manually spread and collected back and forth, but also the alkaline water that rains away will flow directly to the lower part of the rocky beach, which will undoubtedly pollute the environment

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