High-range combined screening machine practical knowledge

Currently, in the process of screening and crushing, plugging and over-crushing phenomena are common, especially in the screening of wet and sticky materials. At the same time, the processing capacity required by customers has gradually increased. The traditional form of vibrating screen can no longer meet the needs of customers, because simply increasing the width and length of the screen surface requires extremely high process and design requirements, and the effect is not significant. After comprehensive analysis, reducing the thickness of the material layer and achieving efficient screening is the solution to the above problems. The only way to the problem.

GGZS series of new screen structure composition:

1. Bidirectional distributor

2. Automatic mobile device

3. Elastic self-cleaning screen plate

4. Exciter

5. Motor

6. Shock absorber spring

7. Rack

8. Maintenance platform

9. Anti-blocking Drop tube

10. Sealed

GGZS High Probability Combination New Type Screen Features:

1. The equipment is equipped with a bidirectional feeder, which has the function of material distribution.

1.1. Dispensing function:

Conventional shaker is generally a single import and export. In normal operation, the material layer is thick. Under certain sieving time, the material group cannot be effectively stratified and penetrate the screen, which affects the screening efficiency.

The two-way distributor is an import, four outlets, and each outlet corresponds to a screening unit to achieve uniform feeding. This corresponds to a quarter of the thickness of the conventional vibrating screen on each screening unit.

1.2: Cloth function:

The conventional vibrating screen is usually fed directly from the belt conveyor or the chute to the screen surface. The feeding area is concentrated, and then the vibrating screen body vibrates and looses the bulk material. This will cause uneven feeding of the feed screen surface, affecting its life. And screening effect.

The GGZS series of new screen fabrics are all completed on the two-way distributor, so that the material can be evenly tiled to the screen surface, to achieve full width feeding screening.

2. Probability screening:

Each sieving unit adopts a double-layer sieve plate design. The lower layer is grading sieve surface. The upper layer is designed with reasonable sieve holes according to the material characteristics and particle size composition.

After the material enters the screen surface, the larger particles are directly sieved through the upper screen surface, and the smaller particles pass through the upper screen surface and enter the lower layer for screening and grading, thereby further reducing the material layer thickness of the grading screen surface.

3. Elastic self-cleaning screen:

GGZS new screen with elastic self-cleaning screen; it divides the frame and the static frame in two parts, the dynamic frame is combined with the static frame connected together.

When the static frame vibrates with the whole sieve plate, the moving frame makes a second vibration. The fixed sieve strip and the movable sieve strip are moved up and down. The sieve plate can be completely unblocked, and the wear-resistance is maintained. The maximum open rate to achieve the highest screening efficiency

4. High screening

GFS series high-sizing screen is our company's patented product. The market share of coal conveying system in domestic circulating fluidized bed power plant accounts for more than 90%, and its operating amplitude is 15-25mm (conventional vibration screen amplitude is 3-11mm).

Facts have proved that in the screening of viscous material, high amplitude can prevent the screening plate from being blocked.

The new GGZS series continues the high-amplitude advantages of the GFS series of high-sizing screens to ensure maximum screening efficiency

5. Environmental protection

Traditional vibrating screens are not easy to seal because the screen box vibrates with the screen.

The high-probability combination screener uses screen vibration and the screen box does not vibrate. For fully enclosed structures, natural rubber cast O-ring seals are used on the seal of the exciter and the screen box. The outer side of the seal and the screen box are fixed with a pressure plate, and the inner side is clamped tightly, so that better performance can be achieved. Sealing effect ensures that fine dust is not leaked.

The rubber seal is easy to install, easy to disassemble, has good sealing effect and long service life.

6. Combination screening

GGZS series new screen uses multiple screening unit combinations, which can be combined in various ways according to the site space and process requirements to meet the screening requirements for more output in various industries.

7. Fast and convenient maintenance

The GGZS series of new screens surpass the design concept of traditional screens. The screen core is located on a platform that can be automatically moved and controls its movement through its unique PLC system.

Through the LDA drive device, the screen core can be quickly removed from the machine body to the tail in 10 seconds, and the screen surface and the exciter part are all exposed. The observation and maintenance of the screen surface are quick and convenient, and the maintenance time and cost are greatly saved.

8. Anti-blocking drop tube

Falling coal pipes are the key point in the overall design of the new GGZS series screens. In order to solve the problem of more sticky materials, the “hose” design is introduced. The bottom plate of the blanking tube contacted by the material is made of polyurethane liner. And independent hitting suspension composition, hitting strength and number of hits can be programmed to control, under the effect of high-frequency impact, polyurethane bottom plate deformation, forcing the wet sticky material flow, to avoid the gradual adhesion and then block the pipe phenomenon.