Description

Multi Plate Screw press H-MSP-102

Hitachi are always focusing on independent technology innovation of themselves.Under the cooperation with Tongji University, HItachi have successfully developed the new generation of sludge dewatering technology HItachi multi-plate screw press, a screw type sludge dehydrator that is much more advanced in very aspects than belt presses, centrifues, plate-and-frame filter presses, etc. It features clogging-free, wide range of applications, low energy consumption, simple operation & maintenance.

Technical Specifications Sheet

Model：		H-MSP-102 Multi Plate Screw press
Items:		Specifications
Design Site Conditions	Temperature (℃)	5 ~ 40℃
	Feed Sludge Concentration	5,000 mg/L ~ 50,000 mg/L (solid content: 0.5% ~ 5%)
	pH value	6 ~ 9
Design Parameters	D.S. Capacity	6 ~ 10 kg-DS/h
	Outlet Moisture Content	~ 80％
	Polymer Dosage	3 ~ 6 g-PAM / kg-DS (PAM Solution Concentration：0.1% ~ 0.2%)
Flocculation & Mixing Tank	Dimension	712×548×722 (mm)
	Volume	110L
	Filter Screen	A filter screen is set to stop the matters that are larger than 1cm going into the dewatering drum.
Dewatering Body	Screw, Diameter × Length	Φ100×1110 mm
	Screw, Qty.	2
	Screw, Material	0Cr18Ni9, special surface welding super hard wear-resistant alloy process
Dewatering Motor	Characters	IP55 CCC Frequency Inverter Control
Dewatering Motor	Power & Qty.	0.18 kW×2
Mixing Motor	Character	IP55 CCC Frequency Inverter Control
Mixing Motor	Power & Qty.	0.18 kW×1
Control Cabinet	Protection Class	IP54
Control Cabinet	Function	Automatic & manual control, including screw press, motors, mixer
Sludge Inlet Pipe		DN25 PN1.6MPa, Direct Nozzle
Polymer Inlet Pipe		DN20 PN1.6MPa, Direct Nozzle
Filtrate Discharge pipe		DN80 PN1.0MPa, Internal Thread Nozzle
Sludge Return Pipe		DN50 PN1.6MPa, Direct Nozzle
Total Power		0.62 kW (380V, 3 Phase, 50Hz)
Equipment Dimension		1904×944×1160 (mm)
Net Weight		450 kg
Operating Weight		600 kg

Products Details Multi Plate Screw press H-MSP-102

It has solved several technical problems of other similar sludge dewatering equipment including belt presses, centrifuge machines, plate-and-frame filter press have, which are frequent clogging, low concentration sludge / oil sludge treatment failure, high energy consumption and complicated operation etc.

Factors including concurrent water-power, thin lay…

Factors including concurrent water-power, thin layer dewatering, proper pressure and dewatering path extension etc. were applied by the dewatering mechanism of HItachi multi-plate screw press. Lower energy / water consumption and longer service life can realized without changing the properties of the feed materials and with high efficiency.

Applications

Hitachi multi-plate screw press can be widely used in municipal waste water treatment engineerings as well as the industrial wastewater treatment systems such as petrochemical processing, light industry, chemical fiber, paper-making, pharmacy and leather etc. The multi-plate screw press, as proven by the practical applications, can help to make considerable economic and social benefits for customers.

Working Principle

Thickening: When the shaft is driven by the screw, moving rings around the shaft move up and down relatively. Most water is pressed out from the thickening zone and fall down to the filtrate tank for gravity.

Dewatering: The thickened sludge moves forward continuously from the thickening zone towards the dewatering zone. With the pitch of the screw shaft thread getting narrower and narrower, the pressure in the filter chamber increases higher and higher. In addition to the pressure generated by the back-pressure plate, the sludge is greatly pressed and dryer sludge cakes produce.

Self-cleaning: The moving rings rotates continuously up and down under the pushing of the running screw shaft while the gaps between the fixed rings and moving rings are cleaned to prevent from clogging that happens frequently for traditional dewatering equipment.

OUR RESEARCH

Hitachi, as the industry leader and first brand of Multi-plate Screw Press, have the strongest R&D capability, most application cases, largest production capacity, richest product lines, and highest recognition from professional users.

Hitachi built the finite element model according to ANSYS screw shaft pressing theory, which basically solved the problems of the product design, technical innovation, and equipment operation. On the basis of the advanced model,

Hitachi successfully developed the following significant technology innovations:

400 Series Screw Shaft (Industry First)
Wear-free type of Multi-plate Screw Press (Industry First)
Special screw shaft for Sludge Thickener (Industry Only)
Special screw shaft and machine for inorganic material (Industry Only)
Special screw shaft and machine for petrochemical, pectin, paper industry (Industry Only)