Zhejiang Fujie, Breaking Foreign Monopolies And Achieving Domestic Production

With the development of the economy and society, the sludge generated by industrial enterprises and urban and rural life is increasing day by day. These sludge have a large volume, are difficult to transport, and are prone to diffusion. Therefore, it is particularly important to implement solid-liquid separation and reduce the amount of sludge for disposal.

How to achieve sludge capacity reduction and create conditions for pollution reduction and emission reduction? Entering Zhejiang Fujie Environmental Protection Equipment Co., Ltd. located in the Economic Development Zone (Xinshi Town), this professional enterprise engaged in the supply and service of energy-saving and low-carbon high-end equipment has provided the answer to this question in actual production and research and development.

By independently tackling the bottleneck technology of low-temperature vacuum dehydration and drying integration, we have creatively integrated mechanical pressure filtration dehydration and vacuum drying technology, filling the technical gap at home and abroad. The sludge moisture content can be reduced from 90% -99% to below 30% in one go, and it has the characteristics of "green and low-carbon, energy-saving and consumption reducing, safe and reliable, environmentally friendly, intelligent and efficient, and low operating costs", which can achieve synchronous treatment of cement gas.

The traditional sludge treatment process can reduce the moisture content of sludge to 60% -70%. If further reduction of sludge moisture content is required, a "sludge drying" process is required. The low-temperature vacuum dehydration and drying integrated technology equipment developed by Fujie Environmental Protection can reduce the moisture content of sludge by more than twice on this basis. For the needs of material processing in special industries, the moisture content of filter cake can even be reduced to below 1%.

The integrated technology equipment for low-temperature vacuum dewatering and drying mainly consists of more than ten systems, including sludge conditioning system, low-temperature vacuum dewatering and drying host system, and feeding system. In this complex system, one crucial component is the high-temperature drying filter plate. The high-temperature drying filter plate pioneered by Fujie Environmental Protection has broken foreign monopolies and successfully achieved domestic substitution. The price has been reduced by more than twice compared to imported products, and the service life has been doubled, further consolidating the company's leading position in the domestic solid-liquid separation equipment field.

In 2018, the high-temperature resistant filter plate and its preparation method were granted a national invention patent authorization. As of the end of 2023, Fujie Environmental Protection has obtained a total of 79 intellectual property rights, undertaken 9 major scientific research projects at the national and provincial levels, and participated in the formulation of over 20 standards at all levels. The improvement of filter plate performance provides the possibility for enterprises to open up a broader market. In addition to being widely used in the dehydration and drying of municipal and industrial sludge, enterprises are also constantly exploring sub industries such as petrochemicals, lithium batteries, coal, pharmaceuticals, and sugar production, and so forth.