Shellless melon seed primary processing technology
Although the processing technology of natural shellless melon seeds is not complicated, each link must be precise and detailed. The processing technology of natural shellless melon seeds includes the following items: primary selection, grinding, screening, first stone removal, cleaning, drying, classification screening, second stone removal, third stone removal, sorting, and packaging Storage. 1 primary election Raw materials are selected into the primary separator to remove impurities and dust from the raw materials. 2 Polishing Then into the grinding machine, using physical friction method, grinding down the seeds and other relics attached to the surface of melon seeds. 3 screening Then go into the specific gravity screening machine to further screen out the impurities and the unsaturated seeds, and only let the full melon seeds enter the next process, ie the first time the stone is taken. 4 First stone removal The stone removal process is very important. In the entire process, there should be three stone removal processes. Otherwise, the remaining products will be left with impurities such as stones and glass fragments. So be sure to choose a stone machine with good performance. 5 Cleaning After the stone is taken for the first time, the melon seeds enter the washing machine, and all the dirt on the surface of the melon seeds and the melons adhered to the melon seeds are cleaned with flowing clean water. Flowing water is required for cleaning, and the direction of the water flow is opposite to that of the melon seeds so that the cleaned seeds can be kept clean. The cleaned seeds must first shake off the surface moisture by shaking the shaker, and then enter the drying box to dry. 6 Drying Drying box should be selected stainless steel track continuous feed drying box, drying temperature should be controlled within 80 degrees Celsius, according to the different temperature, adjust the track's operating speed, high temperature when the track speed, low temperature track speed to Slowly, the moisture content of the melon seeds sent after drying in the drying box is usually around 8%. 7 Grading The dried melon seeds are fed into a grading screen by a lifter for grading. 8 The second stone removal and the third stone removal Qualified seeds automatically enter the second and third stone taker for complete stone removal. 9 Sorting The melon seeds that have been processed through the above process must be fully selected before entering the package. The best combination of sorting procedures is: First, after the stones are fully taken out, they are sent to a color sorter with superior performance, and the impurities with the highest content are selected and removed. Then enter the artificial hand-selected conveyor belt, on the conveyor belt with artificial hand-selection method to carefully eliminate the exception of melon seeds and rancid discoloration, deterioration of the seeds, qualified metal seeds and then through the metal detector or X-ray machine to remove the metal has not been removed Impurities. 10 Packing and storage After that, you can enter the automatic packaging machine packaging storage.
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