NLS series inflow pressure screen is advanced paper pulp screening equipment in the modern world, which has great ability of screening function and low pulse. It is widely used in the fine screening of wood pulp, straw pulp and waste paper pulp, especially suitable as the net filter before paper machine.
Features
1. Small motor power, high production capacity, energy saving.
2. Inflow structure, low pulse, good effect of homogenate.
3. No gaskets companion flange pulp outlet, inwall is polished. Seamless connection of flow pipeline, no fiber hitching.
4. Advanced structure, sturdy and durable, convenient disassembly and assembly, simple operation, less malfunctions for continuous working, low maintenance cost.
5. Long pulping residence time, sufficient fiber relief, low rate fine fiber loss
Technical Data
Type
NLS0.6
NLS1
NLS1.5
NLS2
NLS3
Screen Area (m2)
0.6
1
1.5
2
3
Concentration of Input Pulp(%)
0.4-0.8
Capacity (Screen Hole) (t/d)
30-60
70-130
110-160
140-260
250-400
Capacity (Screen Slot) (t/d)
25-45
55-80
80-120
100-160
150-300
Pressure of Inflow Pulp(mpa)
0.1-0.4
Motor Power (kw)
7.5-15
22
30
37
45
Technical Data
Type
NLS4
NLS5
NLS6
NLS7
Screen Area (m2)
4
5
6
7
Concentration of Input Pulp(%)
0.4-0.8
Capacity (Screen Hole) (t/d)
260-520
350-600
420-700
500-900
Capacity (Screen Slot) (t/d)
180-320
220-400
260-480
350-600
Pressure of Inflow Pulp(mpa)
0.1-.0.4
Motor Power (kw)
55
75
90
110
Technical Data
Type
NLS8
NLS9
NLS10
NLS11
Screen Area (m2)
8.5
9.6
10.5
12
Concentration of Input Pulp(%)
0.4-0.8
Capacity (Screen Hole) (t/d)
600-1120
700-1200
770-1300
840-1400
Capacity (Screen Slot) (t/d)
400-720
440-800
480-880
520-960
Pressure of Inflow Pulp(mpa)
0.1-.0.4
Motor Power (kw)
110
132
160
160
Working Principle
NLS series inflow pressure screen is a continuing screening equipment under the fully closed position with pressure.
When works, the pulp enters into the outside of screen drum along the tangent direction through the pulp pipe. Qualified pulp enter into screen drum through the sieve seam (hole), with the help of pressure difference between inside and outside of screen drum, then come out through the pulp pipe. The pulp and impurities which can not through the sieve seam (hole) fall down to the bottom, and come out from the discharge pipe.
Rotating blade outside the screen drum can produce a moderate pressure, which improves the circulation flow of pulp, its tail will produce a negative pressure, which has an effect of backwash sieve seam (hole). It can prevent the sieve seam (hole) congestion, and pulp can smooth enter through the sieve screening (hole) from the surface constantly, which ensures the continuous operation.
