Best Seller Paper Pulp for Tissue Paper Making/ Pressure Screen
Best seller paper pulp for tissue paper making/ pressure screen
Application of paper pulp screen machine
Best quality paper pulp screen machine , pre-net screen (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.
Main features
1. Advanced structure, strong and durable, convenient dismounting, low energy consumption, high efficiency;
2. Easy operation, continuous work with less faults, lower maintenance cost;
3. Equipped with automatic lubricating device, reduce maintenance;
4. The sealing water flow automatic detection alarm device, ensure the safe operation of equipment;
5. Control interlocking system, ensure the service life of the equipment.
6. mainly used for fine screening of chemical pulp, waste paper pulp and the fine screening of all
kinds of paper pulp as the net filter before paper machines.
7. Rotor spins outside of sieve drum, heavy impurities flow away from the sieve drum, not
blocking sieve seam, and sieve drum life is greatly increased.
8. Streamlined rotor, pulp flows smoothly, low pulse
9. Good effect of impurities and fiber separation, not easy to jam sieve seam.
10. Used as the net screen, low pulse, high screening efficiency, reliable operation.
11. Equipped with automatic lubricating device, which reduces maintenance
12. Automatic detection alarm device of sealing water flow, which ensures the safe
operation of equipment.
Double-end Mechanical seal of paper pulp pressure screen
Operating Principle of China manufacturing paper machine pressure screen
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.
1. Foundation
1.1 pre-net screen
is rotary equipment, which adopts reinforced concrete structure.
The foundation is designed by the civil engineering department. When the
foundation finished and achieves the curving period, lay the pressure screen on the foundation. Mat calibration and anchor bolt, conduct secondary grouting after a
1.2. pre-net screen Lifting equipment and space
For the convenience of installation and Maintenance inspection, lifting equipment is needed at the installation scene, and it should be able to lift the weight of the sieve. There should be enough space above the screen pressure, for hanging out the
rotor body, the sieve drum, main shaft, etc in the future
13. Installation of PRESSURE SCREEN
Lay the pressure screen on foundation using the lug at the base. When install the
equipment, must make screen body level to keep it smooth and anchor bolt
stressed evenly, and ensure machine can completely discharge liquid when
discharge airs. Finally should tighten all bolts in.
1.4. Installation of pipes
Notice: The pressure screen body cannot serve as the stent when install pipes.
Commonly, the heights of inlet pipe, outlet pipe and tailings pipe should be higher 1 m or so than the stock inlet, to ensure often filled with water in the pressure
screen, which can avoid air into and pulp shortage, and it can forms back pressure operation, which is easy to adjust the pressure screen effectively.
Competitive advantages of our pressure screen
1.Over 30 years production experience,we are specializing in making all kinds of paper machines and pulp equipments.
2.20000 square meters workshop with more than 200 staffs including 50 engineers will be your best support and specialize in making all kinds of paper recycling machines.
3.Full technical support:we will provide the foundation drawings of the machine and installation support.
4.ISO9001:2000 and BV certification.
5.Strict quality control of every procedure,full guarantee of the quality of every single packaging.

Zhengzhou Leizhan Technology Paper Machinery Co.,LTD is a professional manufacturer with more than 30 years manufacturing experience in making complete set of screening, impurity removal, pulping and refining equipment. Our company is located in Zhengzhou which is the hometown of machinery in Henan Province. We have more than 200 staffs including 50 engineering technicians which can be your best technical support. With high quality products and perfect pre-sale and after-sale service, we have won lots customers from all over the world.

1.Pre-sales Service
- Offering comprehensive technical and business consultation services;
- Proposing the most suitable scheme and equipment for our clients;
- Designing and fabricating targeted products according to the special requirements of clients;
- Training periodically high qualified service technician.
2.After-sales Service
- Highly inspecting equipments in every working procedure, quality comes first;
- Fast & Safe Delivery;
- Assisting our clients for foundation construction of equipments;
- Dispatching engineers to install and debug equipments;
- Training the first-line operators on site;
- Regularly visit clients to solve production problems;
Providing life-long maintenance service;
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