Gyratory Screen

■ Description

►Customer reference list

CUSTOMER REFERENCE LIST (YEAR 2012-2014)
NO.	EQUIPMENT	VENDOR'S SCOPE OF SUPPLY	QUANTITY	TIME
		PROJECT LOCATION
13	Gyratory Screen	Srilanka	1 Set	20121024
25	Gyratory Screen	Australia	1 Set	20130800
33	Gyratory Screen	Iran	1 Sets	20140129
40	Gyratory Screen	Guyana	6 Sets	20140500
43	Gyratory Screen	Srilanka	1 Set	20140700

►IntroductionGyratory 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

As one of new type and high standard screening equipment, gyratory screen can be used to screen of raw materials and bean curd in large scale grease factory, and screen or classify large granular urea, powder materials or granulated feed in feed mill. Also, it can be used for preliminary cleaning of raw material in feed mill as well as classifying intermediate products after regrinding in middle-sized feed mill. What's more, gyratory screen can be widely used to screen and classify materials or finished products for grain, sodium bicarbonate, large granular urea, urea granules, ceramsite, zirconia, reduced iron powder, barite, spice, plastic, mining industry, rubber, wood industry, plywood, medicine, sugar, mining, papermaking, chemical, refractory materials, building materials, activated carbon, food, PVC powder and other fine materials etc..With the development of market circulation economy, it is increasing to be used in waste plastic industry to classify, and also can do size grading for materials with broken.

► 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.

Gyratory Reciprocating Motion The Gyratory Reciprocating Motion gradually diminishes along the length of the machine to an elliptical path and finally to a nearly straight line motion at the discharge end. 1. Circular motion at feed end  Spreads the material across the full width of the screen surface Stratifies the material Aggressively conveys material forward 2. Changing to elliptical motion at centre  Long stroke elliptical action Enhances product stratification Conveys material at high capacity 3. Straight-line motion at discharge end Removes near-size particles Improves screening efficiency No vertical component ensures material is in constant contact with the screen surface

►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

►Advantages

1.All components are easily accessible and removable for ease of disassembly and cleaning.

2.No vertical vibration, longer life span of mesh (6 – 12 months).

3.Every layer is installed an anti-blocking and cleaning facility and able to clean mesh while sieving. 

4.Exterior is designed for easy cleaning. Exterior permanent joints are either welded continuously, or strip welded and filled with epoxy.

5.Lower headroom permits operation in confined areas, reducing cost of building and maintenance.

6.Less conveying equipment is required for elevating material to the feed point.

7.Greater product yields at higher production rates.

8.Low energy consumption.

9.High screening efficiency.

10.Create low noise pollution.

►Selection condition

1.Material to be processed.

2.Granule size of the materials(Mesh size).

3.Moisture content ,density.

4.Granule size proportion if possible to get,the number of lays.

5.Capacity (tons or kg per hour ).

6.Local power supply(voltage and frequency).