A material feeding device for nano calcium carbonate modified material

By designing a material feeding device for nano-calcium carbonate modification, the device utilizes stirring blades and scrapers to break up agglomerates, a mixed-flow fan pump to remove dust, and a hot air blower to dry the material. This solves the problems of blockage and dust during the nano-calcium carbonate feeding process and achieves continuous and environmentally friendly conveying.

CN224641030UActive Publication Date: 2026-08-18WEIHAI DUOHAO CARBON NANOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522022378.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-08-18
Estimated Expiration
2035-09-19

AI Technical Summary

Technical Problem

Nano-calcium carbonate is prone to agglomeration into large particles due to van der Waals forces during traditional feeding processes, which can cause blockages in the storage tank outlet and conveying channels, affecting continuity. Furthermore, the powder dust poses health hazards and pollutes the environment.

Method used

Design a material feeding device including a rotating shaft, stirring blades, scraper, humidity detector and hot air blower. The stirring blades form a bidirectional shear force to break up agglomerates, the scraper removes materials adhering to the wall, the mixed flow fan pump removes dust, and the hot air blower dries the materials, ensuring continuous feeding and environmental protection.

Benefits of technology

It effectively prevents conveyor blockages, reduces material loss, lowers cleaning difficulty, protects the health of operators, and ensures raw material quality and environmental protection requirements.

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Abstract

This utility model discloses a material feeding device for the modification of nano-calcium carbonate, including a storage tank. A cover plate is fixedly installed on the upper surface of the storage tank by multiple first bolts. A sealing gasket is fixedly installed on the bottom wall of the cover plate. A rotating shaft is rotatably installed on the bottom wall of the cover plate. A motor connected to the rotating shaft is fixedly installed on the upper surface of the cover plate. Multiple stirring blades are fixedly installed on the outer wall of the rotating shaft by a mounting sleeve. Each stirring blade is inclined. By setting up components such as a rotating shaft, stirring blades, connecting rods, and scrapers, this utility model allows the stirring blades to rotate when the rotating shaft drives them to rotate. The adjacent stirring blades with opposite inclination directions can form a bidirectional shearing force on the nano-calcium carbonate, effectively breaking up agglomerates and avoiding conveying blockages caused by agglomeration, thus improving the continuity of feeding. At the same time, the scraper rotates with the rotating shaft against the inner wall of the storage tank, which can promptly scrape off the material adhering to the wall, reducing material loss and cleaning difficulty.
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