Dustpan, the second word in Chinese, means dustpan used when vibrating grain up and down. Air separation is mainly used in occasions such as grain hulling and dust raising. Tao Yuanming in Jin Dynasty wrote in his poem "Returning to the Garden": "A gentleman's bow is like a tiger in mud", and the "winnowing" here is a kind of agricultural tool, which is used to remove impurities from grains, similar to a sieve.
In addition, people also used dustpans to wash rice in ancient times. There is something in the Book of Rites: "White rice is blue, mixed with Qi Zhen's shame, fed with Qihe's soup, eaten by Yan Jun, fried in spring, fried in summer, ashamed in autumn, and introduced in winter, but not eaten by Qi Zhen." Among them, "mixing Qi Zhen shame" refers to sifting out miscellaneous rice and beans with a sieve.
In modern society, although the use of dustpan is gradually decreasing, it can still be seen in some specific occasions. For example, in rural areas, dustpans are often used to remove impurities from grains; In some families, dustpans are used to throw away dust and so on.
In a word, winnowing, as an important agricultural tool and daily appliance, played an important role in ancient China society. It is not only widely used in grain processing and rice washing, but also plays a role in other occasions. Although its use in modern society is gradually decreasing, its historical value and cultural connotation are still worthy of further discussion and inheritance.
Common manufacturing methods of dustpan:
1. Making a dustpan with willow branches: select stout willow branches, peel them, dry them in the sun, then flatten them with a wooden stick or hammer, remove the redundant branches and leaves, then cover the surface of the willow branches with a thin bamboo stick, tie the edges of the dustpan tightly with a rope, and finally bake the two ends with fire.
2. Use bamboo as a dustpan: select a proper amount of bamboo, cut it into sections and peel it, then chop it into the required width and length, then flatten its surface with a knife or saw to form the shape of the dustpan, and finally tie the edge of the dustpan with a rope.
3. Making dustpan with plastic: according to the required size and shape, cut the bottom and edge of dustpan with plastic board or plastic pipe, and then stick them together with glue to form a complete dustpan.