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Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai

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Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai Detail:

QZ series gravity screen is a new high-efficiency screening machine. Its main working part is a concave screen surface with certain radian. The screen is made by splicing some stainless steel wedge-shaped bars together. This sieve bend is competent in finishing screening, dewatering, cleaning, extraction, and solid impurity removal in heavy-duty screening occasions. It has found great popularity in corn dewatering, corn germ dewatering and cleaning, and crude/fine fiber separation in starch industry.

The mixture flows along the curved screen surface under the action of gravity and is distributed evenly on the whole screen surface. When the materials perform circular motion, the centrifugal force generated by the small particles is larger than the inertial force, so the materials penetrate though the screen slog and discharged from the lower port. Particles whose size is larger than the slog’s will be left on the screen surface and discharged from the upper port. In this process, the main power source is only the materials gravity, that’s why the machine is called gravity screen.

Structure of Gravity Screen
Gravity screen is mainly consisted of frame and screen. For the upper body of the screen, we have set a receiving trough, which is equipped with overflow weir and pressure valve. The lower screen body adopts both upper and lower discharging ports. The screen is comprised of wedge-shaped screen bands and upper/lower blocking strips. Support rods are available back the screen bands. The screen is placed on the panels of the machine along the curbed pallets, and fixed by upper/lower blocking plates. Above the screen, we have set a movable cover. Central angle of the curved screen surface: 50°/45°; radius: 917mm/2038mm; screen length: 800mm/1600mm; screen width: 400mm, 600mm, 1000mm, 1200mm, 1500mm and 1800mm. Additionally, according to different installation methods and structures, gravity screen can be classified as A, B, and C types.

How to Choose the Right Gravity Screen
1. Screen width
The production capacity of ZQW gravity screen provided by Johnson Group (sieve bend manufacturer in America) is 115~570 L/min.inch (22.6~112.2L/h•mm). During production, users should determine the width of screen according to the material flow and production capacity (per unit) recommended above. Solid load and slog width are also important factors.

2. Slog width
Gravity screen is commonly used for corn dewatering, germ cleaning, and germ dewatering. Different slog width is prepared for different applications.
Screen for corn dewatering: 2.5mm~3.0mm
Screen before the secondary grinding: 0.6mm~1.0mm
Screen for corn germ: 0.75mm
Screen for germ cleaning: 1.0mm
Screen for germ dewatering: 1.2mm~1.5mm

3. The feeding and installing style should be determined basing on the layout of the sieve bend.
 Features
With a triple gravity screen, the steps of corn germ screening, cleaning, and dewatering are integrate into one. This machine can help to shorten the production line, and cut on the costs of material transmission equipment. Besides, it is easy operated.

Precautions of Use
1. The materials should be fed uniformly; multi pipes should be employed for feeding when the screen surface is wide enough
2. Operators should ensure that the pressure valve moves flexible so that the materials can be distributed uniformly on the whole screen surface.
3. The angle between the string of the screen and the horizontal plane has some effect upon the screening effect, which can be improved by reducing the angle to some extent.

Main technical performance

Product name QZ40 AB QZ60ABC QZ80 QZ100C QZ120C
Sieve angle 50 50 50 50 50
Sieve length 800 800 800 800 800
width 400 600 800 1000 1200
Sieve area 0.32 0.48 0.64 0.8 0.96
Curved screen radius 917 917 917 917 917
Overflow height 520 520 520 520 520


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Product detail pictures:

Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai detail pictures

Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai detail pictures

Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai detail pictures

Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai detail pictures


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We also offer you product sourcing and flight consolidation expert services. We've our personal manufacturing unit and sourcing business. We can offer you virtually every variety of merchandise associated to our item range for Manufacturer for Corn Starch Sieve Machine - Gravity arc sieve – Weitai , The product will supply to all over the world, such as: Italy, Bangladesh, Singapore, What is good price? We provide customers with factory price. In the premise of good quality, efficiency will have to be paid attention to and maintain appropriate low and healthy profits. What is a fast delivery? We make the delivery according to customers' requirements. Although delivery time depends on the order quantity and the complexity of it, we still try to supply products and solutions in time. Sincerely hope we could have long term business relationship.
  • The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.
    5 Stars By Merry from Luxembourg - 2018.06.19 10:42
    We have been looking for a professional and responsible supplier, and now we find it.
    5 Stars By Beryl from Tajikistan - 2018.03.03 13:09
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