4 September - posted by caojing839,
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Agriculture is the largest single industry in the world, and seed production is an important segment of this industry. Seed, as it comes from the field, contains various contaminants like weed seeds, ... moreAgriculture is the largest single industry in the world, and seed production is an important segment of this industry. Seed, as it comes from the field, contains various contaminants like weed seeds, other crop seeds, and such inert material as stems, leaves, broken seed, and dirt. Therefore, cleaning of paddy is required. Additionally, non-availability of appropriate Paddy Cleaner machine at reasonable price is one of the major constraints for initiating small/medium scale manufacture of Paddy Cleaner(LIANGGONG).
Therefore, this working is undertaken to develop an efficient low cost paddy cleaner in view of improving the quality paddy cleaner using conventional methods. To check the performance of the paddy cleaner, a total volume of 1.15kg of uncleaned paddy consisting of 1kg of paddy, 0.05kg of dust and 0.1kg of sand was fed into the hopper. After the cleaning process, the output obtained was 1.022kg of cleaned paddy with 0.994kg of paddy, 0.021kg of dust and 0.006kg of sand. Hence the performance of this machine is very efficient where most of the paddy produced is cleaned.
Improper cleaning usually results in grain loss and lower head rice recovery in mills. Cleaning helps to reduce bulkiness during subsequent post-harvest operation. You should remove straw pieces, unfilled grains and other foreign materials. Cleaning and winnowing can be done manually, using wind energy or with the use of machines. You can use traditional winnowers like the winnowing basket and wooden boxes with perforations. Cleaning removes unwanted materials like straws, chaff, weed seeds, soil particles and rubbish from the grain. It improves grain storability, reduces dockage during milling, gives good quality milled rice and improves the milling output. It also reduces insects, pests and disease infestation.
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