Product Structure and Advantages of Finger Screen

Finger Screen is a widely used screening equipment in multiple industries. Finger Screen is mainly used in industries such as waste treatment, coal, coal washing, chemical industry, building materials and hydropower engineering, abrasive waste treatment, quarrying, etc. for material washing, screening, grading and other industries. A new structural pattern sieve plate with various sizes and mesh sizes of rod vibrating screens, especially suitable for applications with strong impact, high hardness, and high wear resistance requirements. Rod vibrating screen is used for wear-resistant screen plates in garbage treatment, fine screening of iron ore, classification of raw coal, screening of gold, building materials, as well as sand and gravel in hydropower and nuclear power projects.

A. Introduction and Working Principle of Rod Screen

1. Introduction to Finger Screen

Finger Screen is a device that uses a sieve surface composed of multiple parallel arranged rods to screen and grade materials. The main working principle is that the driving device drives the entire screen frame to perform reciprocating motion, causing the material to continuously roll and jump in the gaps between the bars. Due to the parallel installation of the bars, this movement can effectively stratify materials of different particle sizes: smaller particles fall through the gaps between the bars, while larger particles remain on the screen surface and continue to move forward until they are discharged from the outlet.

2. Working principle of Finger Screen

When the Finger Screen is working, the excitation force generated by the exciter is transmitted to the screen surface inside the screen box through the screen box. As the excitation force generated by the exciter is longitudinal force, it forces the screen box to drive the screen surface to undergo longitudinal forward and backward displacement. Under certain conditions, the material on the sieve surface of the rod vibrating screen is thrown forward by the excitation force. When the material falls below the sieve hole, it passes through the screen and falls to the lower layer. The motion trajectory of the material on the sieve surface of the rod vibrating screen is a parabolic motion. The rod vibrating screen completes the material screening operation by repeating the material motion due to this circumference.

B. Structure of Finger Screen Product:

1. The Finger Screen is mainly composed of a screen box, a driving device, a supporting structure, and a Finger Screen plate. The sieve box is the core component of the bar sieve, usually welded from steel plates and equipped with bar sieve plates inside. The bar sieve plate is composed of multiple parallel arranged bars, with a certain gap between them, used for material penetration and grading. The diameter and gap of the bars can be customized according to different screening requirements.

2. Finger Screen vibration motor is a new type of exciter that integrates power source and vibration source, with high energy saving, large excitation force, reliable use, and simple adjustment; Features such as easy use and maintenance.

3. Rod type vibrating screen body: made of welded plates and profiles, its function is to transport the material to the crusher through vibration.

4. Rod type vibrating screen damping spring: Generally, metal coil spring or rubber spring is used, which is used to generate elastic vibration of the machine body and reduce the transmission of vibration load to the foundation or structural frame.

5. Rod type vibrating screen bracket: made of welded plates, its function is to support the machine body.

C. Advantages of Finger Screen:

1. High overall strength: The Finger Screen has a simple and compact structure, beautiful appearance, and high overall rigidity and strength of each part; Relatively small in size and light in weight, convenient for system process layout.

2. High screening efficiency: Rod screens have a relatively large processing capacity, low energy consumption, and are not easily clogged. Rod screens are particularly suitable for screening materials with high moisture content and high viscosity.

3. Wide application range: Suitable for garbage sorting, coal, mining and other industries, for grading and processing block shaped and small and medium-sized particle materials.

4. Mature and complete equipment: Combined with its application and extension in the mining and coal industries, its design is more mature and complete, with strong excitation force, high screening efficiency, low noise, and economical use.

5. Full range of models and specifications: The Finger Screen has two structural forms: open and closed, suitable for different operating environment requirements. The screen surface has single-layer and multi-layer structural forms, and the running trajectory has two forms: straight and circular. There are various models and specifications.

6. Easy installation: Easy to install and debug, stable and reliable operation, easy operation and maintenance.

The bar type vibrating screen product adopts a feeding surface in the form of blind plates and bar bars. The bar type vibrating screen is suitable for uniform feeding of large blocks of materials in front of the crusher, and is particularly suitable for feeding before coarse or medium crushing of black or non-ferrous metal ores and building stone materials; The gap between the bars of the bar type vibrating screen is adjustable, which can separate soil and fine materials while feeding, and play the role of a crusher in the later stage; Rod type vibrating screen has the characteristics of simple structure, easy maintenance, high strength, impact resistance, wear resistance, and low noise.

D. Application of Finger Screen:

1. Environmental protection industry: used for processing stale household waste, decoration waste, etc., to achieve effective screening of different types of waste.

2. Mining and building materials industry: used for screening and grading materials such as ore and sand.

3. Food processing industry: used for screening paste like items such as tofu residue, seasonings, wheat flour, etc.

4. Pharmaceutical industry: used for separating drugs, such as traditional Chinese medicine extracts, biochemical products, etc.

5. Chemical industry: used for screening fine powders such as carbon black, lime powder, etc.

Rod type vibrating screen is used for uniform feeding and separation of large materials in front of crushers. Rod type vibrating screen is particularly suitable for garbage treatment, hydropower industry, construction stone materials, black or non-ferrous metals, and coarse crushing of ores before feeding and initial screening; The rod type vibrating screen vibrating feeder adopts a vibration motor as the excitation source, with a simple structure and easy maintenance; High yield, long lifespan, sturdy and durable.

E. Maintenance and upkeep

To ensure the normal operation and extend the service life of the Finger Screen, regular maintenance and upkeep are required. This includes checking the temperature and sound of the vibration motor, as well as the movement status of the screen box, regularly adding lubricating oil, cleaning and maintaining the equipment, and checking the wear of the screen plate.

Zhongcheng Machinery is a professional manufacturer of Finger Screens, with exquisite technology and customized production to produce high-quality Finger Screens for you! Exquisite technology creates exquisite Finger Screens, with high quality and low price. Welcome to consult!

Overview: Finger Screen, as an efficient and energy-saving screening equipment, plays an important role in multiple industries. By understanding its working principle, structural characteristics, advantages and applications, as well as model and parameters, it is possible to better select and use Finger Screens to meet production needs.

Author : Serena Chang

Serena Chang is the writer of blog and news column. With more than 10 years of working experience in the machinery industry, she has a comprehensive understanding of environmental protection machinery and is willing to share useful knowledge of environmental protection machinery.