Metering Systems for Polymers

An HNS series thickener works with a rotary drum thickening process to obtain a high solid content treatment effect.

Features

Higher than 96% solid recovery rate
Steady operation with little to no noise
Easy operation and maintenance ensures a long service life.
The perfect thickening effect can easily even out the varying sludge concentrations.
A 40% output capacity is larger than other machines that occupy the same amount of floor space.
The costs of land, construction and labor are all saved as this machine takes up less floor space with its simple structure, small flocculent requirements and fully automatic operation.

Parameter

Spec.			HNS-5	HNS-10	HNS-20	HNS-30	HNS-40	HNS-50	HNS-60	HNS-80	HNS-100
Machine Frame Material	Standard		Stainless steel(SUS304)
	Option		Carbon steel(SS400/SS41), stainless steel(SUS316), other special materials
Filter Opening(micron)			30~80	30~80	30~80	30~80	30~80	30~80	30~80	30~80	30~80
Treating Capacity(m3/hr)			2~6	6~12	11~23.5	22~32.5	33~42.5	41~52	45~63	61~83	80~105
D.S Dried Sludge(kg/hr)			40~70	90~120	150~220	240~310	260~420	290~510	360~600	540~900	620~1250
Sludge Outlet Consistency(%)			3.5~11	3.5~11	3.5~11	3.5~11	3.5~11	3.5~11	3.5~11	3.5~11	3.5~11
Power Consumption(HP)	Standard	Driving Motor(Frequency control)	1/2	1/2	3/4	1	1	1	1*2	1*2	1*2
		Flocculator Tank Motor	1/4	1/4	1/4	3/4	3/4	3/4	3/4	3/4	1
	Option	Washing Pump	1	1	1	1	1.5	1.5	2	2	2
Lower Collecting Tray for Pressed Filtrate			Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
External Dimensions(mm)	L1		2075	2085	2525	2525	2545	3015	2525	2545	3015
	L		2708	2808	3344	3448	3548	4048	3498	3648	4148
	W		938	1038	1058	1078	1128	1128	1800	1900	1900
	H		1206	1340	1458	1535	1595	1845	1535	1595	1845
Weight			300	450	700	1050	1220	1320	1450	2000	2560

Working Principle

The slurry and flocculating polymer are poured into the conditioning tank of the rotary drum sludge thickener for uniform agitation. Then, the hardly dehydrated floc granules are formed, and flow into a drum for sludge-water separation. The conditioned sludge is guided into the fine mesh of the drum. A large amount of supernatant free water will be filtered, when a centrifuge rotates slowly under conditions of the rotational speed of 22r.p.m. and the power of 0.37kW per unit.

As a result, the slurry is thickened. The processing capacity of our rotary drum sludge thickener is improved, and the operating time is shortened. The separated sludge can highly reduce the load of the belt for permeating water. Meanwhile, the sludge group is constructed firmly. No sheet-flood or side-overflow phenomenon will occur. Then, the dehydration efficiency is enhanced, and the water content rate is lowered. After separation, the solids content of the free water varies from 0.5‰ to 1‰, which is closely related with the dosage and types of the polymer.

The semi-centrifugal rotary drum thickener can filter the free water by means of external force. It has high requirements for the polymer and the binding force of sludge. In comparison with the belt thickening machine, our rotary drum sludge thickener can offer the thickened sludge with lower water content. The sludge with its water content of over 1.5% is a better choice.

Side View of the Thickening Equipment

Side View of the Thickening Machine

Front View of the Thickening Apparatus

Screen in the Rotary Drum of the Thickener
Belt Cleaning Device of the HNS Conditioning Tank
Stainless Steel Nozzle Imported from Japan

Cleaning Hose
The filter cloth imported from Germany features great air permeability, practical use, and long lifespan.
Conditioning Tank
The sludge outlet and perspective window of the HNS-80 series rotary drum sludge thickener are specially designed for observing the operation of our equipment.
Sludge Outlet
Perspective Window
Cargo Examined by Japanese Customers before Delivery