Structures and Features for Three types of Rotary Vibrating Screen Net Rack

Structures and Features for Three types of Rotary Vibrating Screen Net Rack

Rotary vibrating screen is designed as a high-precision screening machine it is widely used for sugar, salt, wheat flour, rice flour, pigment, medicine powder, ceramic, silica sand, metallurgy zinc powder, aluminum powder, iron powder, calcium powder etc. 

The net rack is the important component of rotary vibrating screen, here we will introduce the structures and features of three common net racks for rotary vibrating screen.

1.U-shaped net rack

It belongs to the very commonly used model of rotary vibrating screen, first use the pressurized tooling to fix the thick wire diameter of screen mesh in the U-shaped groove, this layer is called meshed net, then the working net is tiled above the meshed net and clamped it. The advantage of this type of net rack is the replacement of working net in a faster rate, the framework of meshed net supports the working net to ensure the flatness of screen surface and prevent the impulsive force of material causing damage of working net, at the same time also will avoid the damage of working net due to the strike of bouncing ball that on the screen plate. The only disadvantage of this type of net rack is the overlapping part of meshed net and working net, which will influence the screen area.

2.Snap fastener net rack

Rotary vibrating screen has two flanges: convex and concave. The concave flange is welded inside the screen frame, while the convex flange is a movable component, the screen mesh is placed between two flanges and locked up with the screw, the screen surface will tension naturally. Generally, this net rack structure is designed for the screen mesh with 12 mesh-30 mesh.

3.Dual A net rack

It also known as the single net with dual clamp net rack or light weight net rack structure. Rotary vibrating screen with this net rack is using two ring shaped circular hoop fix tension screen mesh. The main advantage of this type net rack is higher screening rate.

Methods to Prolong the Life Span of Circular Vibrating Screen

Methods to Prolong the Life Span of Circular Vibrating Screen

When using circular vibrating screen, what we should pay much attention to is that how to keep its lifespan longer. This article will introduce you several methods.

Circular vibrating screen is widely used for building materials, chemical, food, abrasives, plastic, medicine, chemical fertilizer, metallurgy, glass, food, ceramics etc.

The following are the methods to prolong the life span of circular vibrating screen which might give you some ideas during the operation:

1.The bolts which connected with the body and screen box of circular vibrating screen are strength bolts. It cannot be replaced by using normal bolts to connect with the body and screen box. The fastening of bolts must be checked regularly, at least once a month. Loosen of bolts might occur if any bolt is loosen, which will cause damage to linear vibrating screen.

2. The space between side plates and mesh sieve box must be equal during replacing the woven mesh. First of all, tighten up the flat steel in the middle. At the same time tighten the mesh surface tension and ensure the surface tension is uniform and constant. Then, slightly tap the mesh surface tension along the entire length by using a hammer to check the tension. One of the reasons for woven mesh to damage in shorter period is due to the tension, either not enough or uneven.

3. The temperature of bearing should not exceed 75°C during normal operation. This is because there is a running-in process of new vibrator which might cause the higher temperature, but the temperature will be stable after running for 8 hours. Check the standard, oil level and purity of oil if the temperature remains high.

How to reduce noise during application of rotary vibrating screen effectively(2)

How to reduce noise during application of rotary vibrating screen effectively(2)

This article is the continuation of previous one. PK Machinery will introduce you how to reduce noise during application of rotary vibrating screen continuously.

5.Rotary vibrating screen might locate at location that is nearby the other hard devices.
Solution: make sure the place nearby the rotary vibrating screen is clean to prevent the interference of the other equipment. Rotary vibrating screen should be placed at location which is 10 cm away from the other devices.

6. The screening body of rotary vibrating screen is uneven.
Solution: place the screening body steadily or add anchor bolts to fix. 

7.The damage of vibration motor or exciter bearing of rotary vibrating screen will cause adverse effects.
Solution: replace the bearing or add lubricating oil regularly.

8. The looseness of other fasteners.
Solution: Check the fasteners regularly and tighten it if it is loosen.

The maintenance of components must be done regularly to solve the problems that occurred during the operation of rotary vibration screen equipment. The life span ofrotary vibrating screen will be extended and increase the screening efficiency by solving those problems. Hence, it increases the economic benefits.

How to reduce noise during application of rotary vibrating screen effectively(1)

How to reduce noise during application of rotary vibrating screen effectively(1)

During application of rotary vibrating screen, there maybe exist some noise, so this article will introduce you how to reduce it effectively.

Rotary vibrating screen is a powder screening equipment with high accuracy. There are various noise might occur during the operation. The louder the noise will cause the greater damage to rotary vibrating screen, thus it is very important to find out the reasons of noise, analyze the reasons and find out the solutions to solve the problem effectively. The following are the reasons and effective solutions for noise occurs in rotary vibrating screen:
1.In order to fix rotary vibrating screen equipment during the process of transportation, the bolts will be added with the means of transport. However, the bolts that connected to rotary vibrating screen equipment might be left and causing noise during operation.
Solution: remove the bolts 

2.The clamp bolts are not tighten.
Solution: check and tighten up the clamp bolts.

3.The clamp bolts are not completely jointed.
Solution: open and re-joint the clamp bolts, ensure the clamp bolts are jointed completely.

4.Due to the operation of rotary vibrating screen, the plate that is used for supporting the bouncing ball might be deviated from its place or it might be damaged.
Solution: re-locate the plate to its original place if it is deviated, or replace a new place if it is damaged.

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation.