High-efficiency Energy-saving mixer technology and device
	National "12th Five-Year" Plan for Science & Technology Support “Research and demonstration of High-quality biogas production equipment by centralized 
	and combined digestion”.
Obtain invention patent, patent No. ZL2013 1 0522294.X
	
High-efficient energy mixer on top of digester, with two layers of propellers which will ensure the complete mixing and sufficient heat and mass transfer so 
	     as to avoid digestion dead-zone and local acidification.
	
Technical features: ①Low unit installation power, 50% energy saving compared to traditional mechanical mixing and jet mixing.
	      ②High-performance new sealing technology solves the problem of mechanical sealing which is easy to wear, leakage and difficult to replace.
	      ③Double-layer propeller design, with crust remove device which effectively prevent formation of floating layer and crust.
	      ④Easy maintenance of electrical control parts,no need to drain the digester.