LiuGuo Chemical’s spherical spraying patent – solves the problems of product caking and storage!

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LiuGuo Chemical’s spherical spraying patent – solves the problems of product caking and storage! According to news from December 30, 2025, **information from the Intellectual Property Office shows that Anhui Liuguo Chemical Co., Ltd. has been granted a patent for an invention titled “A spraying device for the surface of spherical products,” with the approval number CN115889061B. The patent application was filed on December 28, 2022, with the application publication number CN115889061A. The inventors include Zhao Mingxing, Zheng Zhiyin, and 5 others, and the application is handled by Hefei Herui Intellectual Property Agency. The classification codes relate to areas such as spraying of chemical equipment and fertilizer processing. Based on the core content of the patent, this device falls within the field of chemical engineering equipment. Its key design feature is the use of nozzles to emit cooling gas, which keeps the spherical fertilizer products suspended in mid-air; at the same time, nozzles are used to apply an anti-caking agent simultaneously. The cooling gas also helps to speed up the drying of the anti-caking agent, enabling complete spraying without any contact, and thus effectively extending the shelf life of the products. The device is also equipped with a material return component and a material feeding component, enabling continuous spraying of spherical products. Public information shows that Liuguo Chemical was established in December 2000 and listed on the Shanghai Stock Exchange in March 2004. Its registered and operational addresses are both located in Tongling, Anhui Province. It is a key enterprise in China’s phosphate fertilizer industry, focusing on the production of nitrogen fertilizers, phosphate fertilizers, compound fertilizers and other fertilizer products, as well as chemical products such as refined phosphoric acid. The company is also involved in areas related to rural revitalization and coal chemistry. In terms of performance, in the third quarter of 2025, Liuguo Chemical’s revenue amounted to 5.005 billion yuan, placing it in 6th place among the 9 comparable companies in the industry. This figure is lower than the industry average of 10.421 billion yuan and the median value of 5.804 billion yuan ； The net profit for the period was -168 million yuan, ranking last in the industry; there is a significant gap compared to Yuntianhua’s net profit of 5.118 billion yuan and Xingfa Group’s net profit of 1.467 billion yuan. It is worth noting that Liuguo Chemical has been making continuous efforts in the field of technological innovation recently, achieving significant results in patent development. In addition to the patent for the spraying device granted this time, several utility model patents have also been obtained recently, covering areas such as production equipment optimization, environmental protection measures, and waste heat recovery. These include an automatic grinding device for detachable flange sealing surfaces, a device for recycling ammonia-containing wastewater, coal conveyor belt chutes, and a suspension system for vibration screen bodies ； At the same time, the company holds a number of invention patents such as \"a production system and method for diammonium phosphate\" and \"a closed-type slag pool treatment device\", which are currently in the stage of substantive examination or publication. The company’s research and development efforts are focused on improving production efficiency, optimizing environmental protection measures, and ensuring product quality, thereby providing technical support for the company’s transformation and upgrading.