Trommel Screen

Introduction to Trommel Screen

Trommel screener is a kind of sorting machine that is widely used in aggregates production and other industrial fields. It can control the garbage separating by particle size and has high sorting accuracy. Trommel screen cylinder body is generally divided into several sections depending on the specific situation of customized requirements. The sieve holes are arranged from small to large, and the size of the sieve hole on each section is the same. 

How to Select a Suitable Trommel Screen?

The screen

There are mainly two factors of screen selection, the production process of the screen and the size of the screening hole.

The screen is usually typed as knitting and punching. The former type of screen is mainly made of round steel with the same wire diameter. If the proportion of the material is too large, it is easy to cause a deformation and material leakage on the trommel screen machine. Besides, producing a knitting screen is complex with higher cost and the maintenance cost is higher as well.

The punching screen is made of ordinary carbon steel or stainless steel. With the simple production process, the bent punching plate and joint of the interface are designed for more solid and durable service. Therefore, in the trommel screen market, the trommel screen equipped with a punch plate screen is the mainstream choice.

The size of the screen hole shall be qualified to meet different screening requirements. You can take a material test for judgment or offer material size information to professional engineers for consultation.

Converter

The converter of the trommel screen shall be able to work properly. In the screen cylinder's co-rotation, the converter should ensure a normal co-rotation. Inversion is forbidden in the co-rotation. Besides, deceleration should be carried out slowly to ensure that the screen body is still when reverse rotation happens. This is to avoid short circuit of the motor or serious deformation of the screen body.

The screening effect of the trommel screen

First-time buyers may pay more attention to the speed of the screen barrel. It is easy to ignore the screen barrel of material screening effect. Rotation is important, while the efficiency of the screen is another important factor.

When selecting a trommel screen, you can take the material to the factory for a test. In the test, it is clear to observe the screening efficiency, material discharging and whether blocking happens.

Other factors on the choice of trommel screen include the material and requirements of output, working environment and working period, etc. Investors can consult related engineers to reduce time-waste.

Applications of Trommel Screen

Trommel screen is aimed at grading various sticky and wet materials like refractory materials, coal, sand stone, coke, lime, gold sand, and so on. The finished product has uniform size to meet the production requirements.

It plays an important part in electric power, mining, coking plants, cement production, ore beneficiation, metallurgy, building materials and chemical industry and any other industrial areas.

Trommel screen separate materials into different sizes of particles

Here are some specific examples of its applications.

1. In stone material factory, it is used to grade different sizes of stones and to separate the soil and stone powder.

2. In sand production line, trommel screen works itself to separating sand and stone.

3. In coal industry, operators usually use trommel screen in separating coal blocks and coal powder as well as in coal washing process.

4. In chemical industry and ore beneficiation line, trommel screen is used for different particles grading and to separate powder from blocks.

Applications of Trommel Screen

Performance Benefits

• Strong Adaptability and Wide Application
  Trommel screen has a strong adaptability to materials like sticky, wet, dirty, and miscellaneous materials, etc. A variety of feeding mode is available including manual and mechanical transmission to achieve mass production.
  For this reason, it is widely used in mining, building materials, transportation, energy, chemical industry and other industries product classification.
  
• Low noise, High Efficiency and Environmental Protection
  The equipment adopts a technically new design concept to narrow the noise during the operation process, which is in line with the national standards.
  In addition, this screening machine produces less dust pollution with a high screening efficiency. This arrangement saves the investment cost to a certain extent.
• Advanced Lubrication System, Long Service Life
  Fote trommel screen machine adopts advanced lubrication system. With this system, lubrication is convenient and fast, thus effectively extending its service life.
  This lubrication system takes care of each part that may be blocked. The main refilling places are rotating bearing, roller bearing, all gears, movable bearing, sliding plane and so on.
• Small Installation Angle, High Screening Efficiency
  Fote rotary drum screen is installed at a small angle. This is to ensure sufficient material retention time in the process of operation. Enough material retention time can maximized improve the screen effect under the premise of ensured work efficiency.
• Professional Engineers, Customized Solutions
  Fote has a professional team of more than 360 experienced engineers. According to different need of different customers, they customize screen with a variety of specifications and vibration mode.
• Other Advantages
  In addition to solving the problem of material block, Fote engineers simplified the drum screen structure as much as possible to facilitate daily inspection and maintenance.
  Besides, the trommel screen cylinder can be closed, which improves the roller screen operation stability to maximum the return on one-time investment.

Fote Trommel Screen in Different Customer Sites

Working Principle

The trommel screen usually works with crushing machine and belt conveyor. The raw crushed materials are fed into the trommel screen.

Firstly, tilt the rotary trommel on the rack. The motor is connected with the drum device through the reducer and the shaft coupling to drive the drum device to rotate around its axis. When the material enters the drum device, due to tilt and rotation of the drum device, the material on the screen surface will be turned over and rolled.

Due to the effect of gravity, the qualified material (products under the screen) will be discharged through the port at the bottom of the back end of the drum, and the unqualified material (products on the screen) will be discharged through the discharge port at the end of the drum.

Thanks to the drum rotation and rolling, the material stuck in the sieve hole can be ejected to prevent the trommel screening machine from blocking.

Fote Trommel Screen Shipment and in the Workshop

Common Faults of Trommel Screen and According Solutions

Although the trommel screen has simple structure, which needs low maintenance cost, due to a long service time, operators' unfamiliarity with the machine or other reasons, customers often encounter some problems in the operation. Based on customer feedback and their own experience, Fote engineers summarized some common failures and solutions to trommel screen.

Classic Case

Last summer, Mr. Wong in Beijing consulted Fote engineer for trommel screen to separate aggregates from soil. He sent the project details to us including required capacity, feed size, and pics of the work environment.

With several emails and messages chat, Fote engineers offered the most suitable trommel screen solution. Though there are four sets of trommel screens, the one-time investment is reasonable due to the low cost of one set of trommel screen. And thanks to the simple structure of this trommel screen machine, the maintenance cost is rather low with a high separating efficiency.

Customer Feedback

I needed a trommel screen line with a capacity of about 200TPH, including 100TPH for 25-30mm particle, 30TPH for 5-10mm particle, and the rest for 15-20mm particle. The engineer paid carness and asked more details of the project including the budget and provided us with a cost-efficient solution.

So far, these four sets of trommel screen have worked very well for us with low failure rate. 

Fote Trommel Screen in Beijing Customer Site

Trommel Screen Manufacturer

Fote Machinery has been committed to mineral processing technology research for more than 40 years, and its business units are specialized in the production of various types of trommel screen. The trommel screen design adopts mature production concept, and is equipped with professional technical research and development team, to create high quality trommel screen equipment for you! 

As a professional trommel screen manufacturer, Fote Machinery provides you with a more authentic, more preferential equipment quotation, and it is your best choice to purchase affordable trommel screen. If you want to know the detailed quotation of equipment, free online consultation at quote@sinoftm.com

General Specification