Paper Pulping Machine Pressure Screen
In the process of pulp making will pass coarse screen and fine screen, the pressure screen is an important machine in pulp making process.Screen Baskets are used in pressure screen, it mainly have two types wedge wire type and drilled hole type. The screen basket is an wearable parts need regular replacement.
Wedge Wire Screen Basket Drilled Hole Screen Basket Wedge Wire Screen Basket
Working Princple of Pressure screen
The rotor of the pressure sieve has blades on its shaft, which are commonly known as rotors, and the gap between the rotors and the sieve drum can be adjusted. When the rotor rotates, the rotor blades move along the surface of the screen drum, the pressure difference near the head of the rotor blades increases, generating positive pressure, and when the positive pressure continues to increase, the good pulp passes through the screen drum. With the rotor tail and the gradual increase in the gap, there is a local negative pressure in this area, when the negative pressure generated so that the screen drum inside and outside the value of the absolute value of the pressure of the slurry is equal, the slurry stops passing through the screen.
When the negative pressure continues to increase, the screen drum outside the part of the good pulp through the screen drum to return to the screen drum, play the role of backwash adhering to the screen drum on the pulp and coarse fibres, so as to ensure that the pressure sieve work normal operation, the rear edge of the rotor wing, resulting in the largest negative pressure, the negative pressure after the rotor wing is gradually reduced, and rely on the pressure difference between the slurry and the other rotor wing to promote the start of the next cycle again.
Material of the Screen Basket
Wedge bar material is SUS316L and will no fiber string after mechanical polishing,while good machining ensures matching of wedge bar and reinforce ring and result in evenly screen cut.Proper wedge bar should be selected according to raw material,processing position and so on in order to develop good performance and achieve optimized screening effect.
Wedge Wire Screen Basket
Deviation of slot width should be controlled within ±0.02mm.
Chroming:Chroming thickness is 0.20-0.30mm.
Surface hardness≥HRC:60-66(HV700-900)
Plate area :0.4m2-23m2. |
Drilled Screen Basket
Pore size deviation:±0.05mm
Chroming:Chroming thickness is 0.20-0.30mm.
Plate area :0.4m2-23m2. |
1.Increase the open area, save the energy consumption and save the operating cost.
2.Electrolytic polished and chrome coating will extend the life time of screen baskets.
3.All parts connected by welding,flanges welded before machining,machanical polishing of flanges.
4.Good in Screen bar's arrangement in order to increase the efficiency of the treatment in a certain stock pulp level and increase the speed of stock pulp through the screen basket.
Technical Parameter
| Product name |
Screen basket |
| Efficiency |
94%~98% |
| Input Speed |
750-1500rpm |
| Inner diameter |
598mm |
| Diameter of screen |
900mm |
| Hole size |
1.2--3.9mm |
| Slot size |
0.10--0.55mm |
| Voltage |
380v |
| Power |
2.2kw |
| Wall thickness of slot type |
7.8mm |
Packing & Shipping
1.In standard exported wooden box package.
2.Packed as your requirement
3.Highly inspecting equipment in every procedure, quality comes first;
4.Assisting our clients for foundation construction of equipment;
5.Providing life-long maintenance service;
6.Providing technical exchanging.
Audited Supplier 
){kind=link}