Product Details

NP type sludge dewatering press filter machine for paper pulp

Working principle of the dehydrator

1. Gravity dewatering area

After the sewage mixes with the polymeric flocculant by sending it to the sludge stirring tank, the tiny suspended matters in the sludge has formed the relatively big adhesive feather type particles by means of the polymeric flocculant and then flows to the sludge arrangement device of the press filter with the direction of the gravity flow to make the sludge in adhesive feature type distribute on the filter cloth on an even basis.

2. Pressure dewatering area

The upper and lower filter cloth will be closed gradually in this area. The sludge will be pressed and its concentration will be enhanced gradually.

3. Compression dewatering area

After coming into the compression dewatering area, the sludge clipped between the upper and lower filter cloth will move with S type among the pressing roller with S type arrangement while the pressure and shear force which gradually increase make the bound water in capillary of the adhesive feather type press and produce the relatively dry sludge cake which will discharged out of the machine by the mad-scraping device.

Structural characteristic

NP belt type sludge dewatering press filter machine consists of the frame, pulp distribution bag, dewatering board, dewatering roller, cyclotron roller, rectification roller, active roller, tension roll, rotation device, electric and pneumatic device, spray painting device and water covering device etc.

Performance parameter

Name	Width of the filter belt	Speed of the filter belt	Feeding concentration	Discharging concentration	Working pressure	Washing pressure	Driving power	Treatment quantity
	Mm	m/min	%	%	Mpa	Mpa	KW	T/D
NP-500	500	0.8-4	≥3	25-45	≥0.4	≥0.5	1.1	5-10
NP-1000	1000	0.8-4	≥3	25-45	≥0.4	≥0.5	2.2	10-20
NP-1500	1500	0.8-4	≥3	25-45	≥0.4	≥0.5	2.2	20-30
NP-2000	200	1.0-5	≥3	25-45	≥0.4	≥0.5	3.0	30-40
NP-2500	2500	1.0-5	≥3	25-45	≥0.4	≥0.5	3.0	40-50
NP-3000	3000	1.0-5	≥3	25-45	≥0.4	≥0.5	3.0	50-60

Application:

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sludge dewatering filter press machine with good quality!

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