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DADI Partners with Jingjin to Offer Filter Presses

Sydney, Australia - 28 June, 2021 DADI has reached a partnership agreement with Jingjin Environmental Protection, Co. Ltd (“Jingjin”) for DADI to offer the award winning Jingjin series filter presses in selected markets and regions.

Mine tailings disposal is becoming increasingly challenging with the changing regulatory requirements on slurry impoundment in all the major mining regions around the world. Thus, the demand for efficient and environmentally friendly fine particle dewatering technologies is increasing. The filter press has been gaining popularity in the mining industry for both tailings and concentrate dewatering. Jingjin, founded in 1988, is the biggest filter press manufacturer in the world whose products have been widely used in many industries including mineral and coal processing, chemical, food, municipal waste water treatment, among others.

“Jingjin has always been DADI’s preferred filter press supplier and we have worked together in many projects over the years, mainly in China though,” said Mr. Aaron Yuan, Managing Director of DADI Australia, “By signing this agreement, DADI will start to introduce the Jingjin filter press to our growing customer base in different parts of the world. This is really exciting!”

“DADI is a top customer and trusted partner of Jingjin, and we look forward to exploring more opportunities together. This will definitely help elevate our partnership to a new level,” said Mr. Yi Lu, Vice President for International Sales of Jingjin.

Working Principle of the Filter Press

A filter press utilizes the pressure difference provided by the feed pump and/or pressurized media to achieve solid-liquid separation. The filter press works in cycles starting with filter plate compression during which the hydraulic system of the filter press pushes all plates together and locks them up safely, forming sealed filtering chambers between the plates. Then, the feed pump delivers the slurry into the filter chambers until certain pressure is reached and maintained for a pre-set duration. At the feeding stage, solids begin to build on the filter cloth, forming a filter cake, while the filtrate passes through the cake and filter cloth and exits from the plate. After the end of the feeding stage, the reverse blowing valves are opened to inject compressed air in the system to blow out the residual solids. For membrane filter press, following the reversing below operation, compressed air or pressurized water enters the membrane bladder to squeeze the filter cake to further reduce cake moisture. The last stage of the filter press working cycle is cake discharge in which all valves are shut down and the plates are opened to allow the cakes to fall onto a moving conveyor belt underneath the machine.


About DADI DADI Engineering is a leading vertically integrated EPCM firm serving the mining and mineral processing industries. DADI’s business includes mine survey & development, coal processing EPCM projects, processing equipment manufacturing, green mining solutions, mine waste heat recovery & smart mining and mineral processing technologies. DADI has operations in Australia, China, Africa and the United States, and we work with some of the largest mining companies in the world such as Anglo American, BHP, Glencore, Rio Tinto, Shenhua Energy, Peabody Energy, Vale, Yancoal, etc. For more information about DADI, please visit

About Jingjin

Jingjin Environmental Protection Co. Ltd, founded in 1988 in Shandong, China, is a world-wide authority in industrial filtration technologies. Jingjin’s main products include filter presses, filter plates, filter cloth and filter press accessory equipment. Jingjin manufactures products at its 900,000 m2 of state-of-the art facilities and Jingjin presses are widely used in environmental, chemical, food, pharmaceutical, metallurgical, mineral and coal industries. The company is listed in Shanghai Stock Exchange (SHA: 603279).



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