Dust collecting system for recycling chalk

Abstract

The invention provides a dust collecting system for recycling chalk. The dust collecting system comprises a blackboard body, an upper dust suction device, a lower dust suction device, a chalk regeneration device, an air introducing device, a controller and a display screen; the upper dust suction device and the lower dust suction device are connected to the chalk regeneration device through guide pipes so that the function that when a teacher wipes a blackboard in class, chalk dust is automatically sucked into the system and is used for secondary manufacturing of the chalk can be achieved, and therefore a good teaching and learning environment can be created, and in addition, the effects of energy conservation, low carbon and environmental protection can be achieved by secondary utilization of the chalk dust; and an introduced draught fan in the chalk regeneration device starts to work so that the internal air pressure of the device can be decreased, the chalk dust can pass through holes in the surface of a blackboard groove of the upper dust suction device and holes in the surface of a blackboard groove of the lower dust suction device and enter the chalk regeneration device through the guide pipes, and after the chalk dust is collected to a certain degree, the chalk manufacturing is started. The system has the advantages of being low in production cost, simple in structure, wide in application range, convenient to use, high in practicality and the like.

Description

technical field [0001] The invention belongs to the chalk research field, in particular to a chalk recycling dust collection system. Background technique [0002] At present, blackboard vacuum cleaners widely used in education in developed countries in Europe and the United States include the Little Giant Eraser Cleaner of GBC Office Products Group in the United States, the third-generation product MC330E of Panasonic Industrial Co., Ltd., and so on. The above-mentioned electric blackboard vacuum cleaners in Japan and the United States are technically mature and have been widely used in foreign developed countries. However, due to their high cost, they are difficult to adapt to the education of our country. [0003] Looking at the existing domestic patent papers such as blackboards or blackboard erasers, it is found that although there are no less than a thousand patent papers related to improving blackboards and other devices, there are not many that are really put into dai...

AI Technical Summary

Problems solved by technology

However, in the actual use process according to its concept, it is found that only relying on the brushes on the left and right sides of the blackboard eraser and the powder collection tank on the lower side of the blackboard tank, it is difficult to ensure that the chalk dust can be efficiently absorbed when wiping the blackboard, so it has not reached its intended purpose. Set a "dust-free" goal

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