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Process arrangement of screening equipment in cleaning process

In the raw grain flour process, cleaning process has always been an important link, due to the complex situation of raw materials containing impurities, so the domestic large and medium-sized flour mills in the cleaning process at least three more screening, wheat cleaning section of the road for screening equipment, the purpose is to clean up the clutter and small clutter, to ensure the normal operation of subsequent equipment. After the two barley screening equipment, so as to ensure that the crushed dirt, broken wheat and fine impurities generated after threshing can be cleaned up in time.

If the second screening uses the same technical method, the screening effect will be significantly reduced, so in the same process as far as possible to use different impurity removal methods of screening equipment to improve its equipment efficiency. Therefore, the selection of three screens in the cleaning workshop process should take the method of combining the vibrating screen and the plane rotary screen. For example, the first track screen of the cleaning workshop is the vibrating screen, the second is the plane rotating screen, and the third screen is the vibrating screen.

The selection of screen surface should follow the configuration principle of combining various forms and different screen shapes and sizes, so that the efficiency of each screen surface can be played. For example, the first vibrating screen layer of the cleaning workshop is punched screen, round hole, the second layer is woven screen, square hole; The second plane rotating screen layer is a perforated screen plate with an oblong hole, and the second layer is a perforated screen plate with a triangular hole. The three vibrating screen layer is a perforated screen plate with circular holes, and the second layer is a braided screen mesh with circular holes. Such a design can ensure that each cleaning process can achieve the purpose of cleaning and removing impurities.

"Good cleaning, that is, half of the work", such a popular saying circulating in the flour industry, is showing the importance of cleaning work, the same screening equipment, using a reasonable arrangement order, so as to play the efficacy of screening equipment, to ensure the free use of resources.

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