Precautions and operating points for using Trommel Screen

Trommel Screen is a commonly used screening equipment that uses a rotating drum for screening, and is widely used in industries such as waste treatment, food, chemical, and building materials. The Trommel Screen has stable performance, large processing capacity, and can perform various screening operations according to material characteristics and processing requirements. Daily maintenance and precautions of Trommel Screen.

Trommel Screen is a widely used mechanical device in sorting technology, which controls garbage sorting by adjusting the particle size and has high sorting accuracy. The cylinder of a Trommel Screen is generally divided into several sections, depending on the specific situation. The sieve holes are arranged from small to large, and the sieve holes on each section have the same aperture. As an efficient screening equipment, the core function of Trommel Screen is to achieve effective separation and classification of materials. Through the rotating screen structure inside the drum, materials of different particle sizes, shapes, or densities can be accurately screened to meet the needs of various production or processing processes.

A. Scope of application of Trommel Screen:

1. Screening of construction waste, stale waste, and household waste in the garbage sorting industry

2. Used for grading stones of different sizes and separating soil and stone powder in the quarry.

3. Used for sand and stone separation in the sand and stone field.

4. The coal industry is used for the separation of lump coal and coal powder, as well as coal washing (a component of coal washing machinery).

5. Used in the chemical and mineral processing industries for the classification of large and small block materials and the separation of powdery substances.

B. Precautions for using Trommel Screen

The application of Trommel Screen in garbage recycling is very extensive. In order to ensure the normal operation of the equipment and extend its service life, the following aspects need to be noted when using it:

1. Regular inspection and maintenance: Regularly check the wear of the Trommel Screen, especially the mesh part, and replace damaged components in a timely manner. Keep the equipment clean and avoid clogging the sieve holes with debris.

2. Correct installation: Ensure that the Trommel Screen is installed smoothly and avoid excessive vibration during equipment operation due to uneven ground, which may affect the screening effect and equipment life.

3. Reasonably adjust the tilt angle: Adjust the tilt angle of the drum according to the material characteristics and screening requirements to achieve the best screening effect. Excessive tilt angle may cause materials to pass quickly without sufficient screening, while insufficient tilt angle may cause blockage.

4. Control the feeding speed: evenly and stably feed the Trommel Screen to avoid overloading caused by sudden large feeding, which may affect the quality of screening and equipment safety.

5. Pay attention to material characteristics: Understand the physical properties of the processed material (such as humidity, hardness, etc.), choose the appropriate sieve aperture and material to adapt to different screening tasks.

6. Adhere to operating procedures: Operators should receive professional training and strictly follow the instructions in the equipment manual to prevent accidents caused by misoperation.

7. Environmental protection: Take measures to reduce noise pollution and dust flying, such as installing soundproof covers, spraying water to reduce dust, etc., to protect the working environment and employee health.

Following the above precautions can effectively improve the efficiency of the Trommel Screen, ensure production safety, and also contribute to environmental protection.

C. Key points for operating the garbage sorting Trommel Screen:

Garbage screening Trommel Screen is a sorting equipment that classifies and processes materials according to their particle size. It is generally used for the classification and screening of medium and fine-grained materials. It has the characteristics of stable operation, low energy consumption, easy maintenance, and simple and flexible process layout. It can be widely used in garbage sorting, product classification in industries such as mining, building materials, and chemical industry, especially suitable for garbage classification and screening. Pay attention to the following operational points:

1. After entering the drum, the crushed raw materials are screened as the drum rotates, while the larger particles flow forward along the slope of the drum and are gradually screened out through different mesh screens. The raw materials corresponding to the particle size are sieved out and fall into their respective funnels, and then manually transported or automatically sent to the finished product pile.

2. The cylinder of a Trommel Screen is generally divided into several sections, depending on the specific situation. The sieve holes are arranged from small to large, and the sieve holes on each section have the same aperture.

3. In order to improve screening efficiency, the speed of garbage moving inside the Trommel Screen should not be too fast, otherwise it will cause insufficient and incomplete screening. Therefore, Trommel Screen generally have strict installation angles, usually 5 °. Of course, in practical situations, adjustments can be made as needed.

4. The drum device is installed obliquely on the frame. The electric motor is connected to the drum device through a coupling via a reducer, driving the drum device to rotate around its axis. After the material enters the drum device, due to the tilt and rotation of the drum device, the material on the screen surface flips and rolls, causing qualified materials (undersized products) to be discharged through the discharge port at the bottom of the rear end of the drum, and unqualified materials (undersized products) to be discharged through the discharge port at the tail end of the drum. Due to the flipping and rolling of materials inside the drum, materials stuck in the sieve holes can be ejected to prevent blockage of the sieve holes.

5. In order to improve the sorting accuracy and avoid the situation where small particles are screened out in large aperture screens, the garbage must undergo sufficient flipping in the Trommel Screen, and the speed of garbage movement cannot be too fast. Usually, a scraper plate is installed on the inner wall of the drum to lift the garbage particles, so that garbage particles of different sizes have as much chance as possible to contact the sieve holes. If they meet the requirements of the aperture, the particles can pass through the sieve, achieving the purpose of Trommel Screen sorting.

The efficient and stable performance of the Trommel Screen is crucial for improving the entire processing flow. When using a Trommel Screen, it is first necessary to ensure that the equipment is installed firmly and the tilt angle is appropriate to ensure that the material can pass through the screen smoothly for effective classification. Secondly, controlling the speed and uniformity of the feed is the key to improving the quality of screening. Feeding too quickly or unevenly can lead to poor screening results or even equipment overload. Regular inspection and maintenance are equally important, especially for vulnerable parts such as screens, which can effectively avoid downtime and maintenance caused by component damage, and extend the service life of equipment.

During the operation process, operators should be familiar with the equipment's operating manual, strictly follow safety operating procedures, and prevent accidents from occurring. Choosing appropriate screen types and aperture sizes for materials of different properties can meet screening requirements while reducing energy consumption. In addition, considering environmental factors, effective measures should be taken to reduce noise and dust pollution, such as installing sound insulation facilities, adopting wet operations, etc., to create a good working environment for workers and reduce the impact on the surrounding environment.

Reasonable use and maintenance of Trommel Screen can not only improve work efficiency, but also ensure safe production and promote sustainable development.

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.