Showing posts with label equipment. Show all posts
Showing posts with label equipment. Show all posts

Monday, September 21, 2015

The Advantage of using Wooden Screen Frame for Vibrating Screen

Vibrating screen wooden screen frame and plate have the advantages of sufficient strength, high opening hole rate and less blockage etc. When vibrating screen vibrates, the different shapes and sizes materials will pass through the screening plate under the action of vibration, material separation in order to achieve classification purpose.
Vibrating screen wooden screen frame and plate is commonly used for linear vibrating screen, it is convenient to replace screen mesh, you can also add bouncing balls which will increase the rate of passing through the screen mesh to prevent the blockage effectively, it is suitable for powder material screening. Wooden screen frame includes cypress screen frame, white pine screen frame and the Korean pine screen frame. The first one is an economic, the cost of the last two is 3 times higher than first one.

cypress screen frame

Wooden screen frame is an important working parts to complete the screening process, and it should be selected reasonably as per the requirement of screening equipment and working environment in order to achieve the best effect.

powder linear vibrating screen

Saturday, August 29, 2015

Vibrating Feeder---A kind of linear direction feeding equipment

Customer reference list
CUSTOMER REFERENCE LIST (YEAR 2012-2014)
NO.EQUIPMENT VENDOR'S SCOPE OF SUPPLY QUANTITY TIME
PROJECT LOCATION
29Vibrating FeederVietnam2 Sets20131107
54Vibrating FeederPakistan2 Sets20140220

► Brief introduction:

Vibrating Feeder is a kind of linear direction feeding equipment, It consists of feed spout, vibration body, vibrating motor, damping device. It can feed material for belt conveyor, vibrating conveyor, bucket elevator, vibrating screen, crusher etc.

► Working principle:The feed process of the vibrating feeder is achieved by the feed spout do line reciprocating vibration periodically which is forced by the special vibrating motor. When the vertical component of the feed spout vibration accelerated speed is bigger than the gravitational acceleration, the material will be upthrow and jumping forward along a parabolic path. Because of the continuous exciting of the vibrating motor, the feed spout will
Vibrating continuously and the material in the feed spout will jumping forward continuously, so that achieves the purpose of feeding material.

► Features:
   1.Smooth operation, large feeding capacity with high efficiency.
   2.Low energy consumption.
   3.Characterized by even feeding, excellent continuity and adjustable vibrating force.
   4.Eccentric block as the main source of vibration.
   5.Double screening and embodies the functions of dirt removing, screening and feeding.

► Advantage:
      Stable vibration, reliable operation and long service life;
      The excitation force and materials quantity moving in the feeder can be adjusted conveniently and easily.
      The vibrating motor, as the excitation source, has low noise, small power consumption, good adjusting performance and without material splash.
      Simple structure, reliable running, convenient installation, light weight, small size, easy maintenance, and the enclosed type can prevent dust pollution.
► Application:
      ZG Vibrating Feeder is a kind of linear direction feeding equipment, which is widely used in pharmaceutical, automotive, electronic, food processing, packaging, glass, steel, construction, recycling, plastic industry etc.
 

► Operation and Maintenance:
      A.Problems occurring in Vibratory Feeders
Four basic malfunctions that bring attention to vibratory feeders need to be concern:
    1.Declining feed rate due to low amplitude. This will occur gradually over a period of time.
    2.A dead spot in the bowl – parts will not feed past a certain point in the bowl, even though they are moving elsewhere in the bowl.
    3.Intermittent operation. The feeder will spontaneously run at excessive amplitude or possibly no amplitude without apparent cause. Included in this category is for a feeder not to work at all.
    4.Noise from the vibrating feeder.

       B.Overhaul and Readjustment of Vibratory Feeders
   Here are the methods to solve the problems:
       1.Remove the bowl, and clean the mating surfaces between the bowl and the top casting of the base.
      These surfaces can accumulate dirt, sometimes, and other material that will make it difficult to draw the bowl tightly down on the top casting of the base. These surfaces should be flat and clean. Using emery paper or a flat file is adequate to recondition the surface.
      2.Operating on one bank of springs at a time, loosen the springs top and bottom and remove them.
      Both ends of each springs, as well as the spacers and mounting surfaces should be thoroughly cleaned with either emery paper, a wire brush or glass bead shot peened.
    3.Examine each spring for cracks and corrosion
The cracks will always occur adjacent to the hole punched in either end, on this type of spring. Sometimes these cracks are not visible to the naked eye, and a simple test is to hit the spring on something solid (dropping it on the floor). Usually this will cause the spring to break thru.
    - Any pitted springs or spaces should be replaced.
    - Reassemble the springs and spaces in the manner in which they were prior to disassembly.
    - Draw up the screw snug.
    - Do this on each remaining banks of springs.

Wednesday, August 26, 2015

The Development Trend of Vibrating Screen

Vibrating screen is widely used in mining, coal, smelting, building material, refractory material, light chemical, medicine, food etc..

circular vibrating sieve
With the higher and higher requirements, the development of vibrating screen reaches a new stage. Combining the domestic and abroad situation, it can be divided into some aspects as follows:
1.To develop in the direction of high efficiency and large output 
Development of industrial modernization process which increases enterprise scale and production capacity greatly, so it needs to match with an efficient high-throughput screening machine.
2.To develop in the direction of standardization, serialization and generalization 
This is a good way to guarantee the quality and reduce the cost , it also provides convenience for designing and organizing specialized production.

dewatering vibrating screen
3.To develop in the direction of stronger vibration strength
The vibration of vibrating screen is strengthened gradually in order to improve productivity and screening efficiency.
4.To develop in the direction of light ,environmental protection and simply structure
Now the structure of vibrating screen is much more simple than previous one, it is more convenient to replace the screen mesh and will save a lot of time.
Henan plain mining machinery co., LTD is specialized in manufacturing screening equipment, lifting equipment and conveying equipment , with abundant engineering design experience, professional technical ability and strict fabricating specification, PK Machinery is always walking at the forefront of this developing trend!

rotary vibrating sieve

Thursday, July 16, 2015

Gyratory Screen for different industry

Gyratory Screen is a new developed equipment particularly for urea .The main function is to provide accurate separation of materials without product deterioration, thereby resulting greater product yields at higher production rates. This machine consists of top cover, top screen fame, spacer, bottom screen fame, the base space and the screen box. The unique gyratory motion of the near horizontal screen surface and the available screen mesh cleaning system secure the gyratory vibrating screen quality as a high capacity product that efficiently developed for materials screening purposes.

Application
Urea gyratory screen is also widely used in Chemical industry, food processing, refractory materials, building materials, activated carbon,food,PVC powder and other fine materials.
Working principle
Gyratory screen adopts to Rotex technology,we also call it Rotex screen. which obviously improves the distribution of the material, thus it will enhance the screening efficiency and the effective utilization of the screen surface, also reduce the powder content of the final material .This design is totally enclosed without dust pollution,it not only improve the operation environment but also reduce the dynamic ratio and foundation load effectively.

Features
1.Reasonable design,simple structure,stable operation
2.Fully enclosed and energy-saving design
3.Self-cleaning device (bouncing balls) of each layer,anti blockage
4.No vertical movement,screen cloth with long service life
5.Fully enclosed structure, no dust pollution
Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screenBucket elevatorScrew conveyorScraper 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.
E-mail:anneguo329@gmail.com
Skype:pkmachinery09