With the acceleration of urbanization, the amount of garbage generated is increasing day by day, and garbage disposal has become an important challenge facing urban management. Efficient and accurate garbage screening technology is essential to achieve resource utilization and harmless treatment of garbage. Among many screening equipment, Zhongcheng shaftless trommel screen plays an increasingly important role in the field of garbage screening with its unique design and performance advantages.

Shaftless Trommel Screen

Zhongcheng shaftless trommel screen is mainly composed of drive device, trommel body, feeding and discharging device and other parts. Unlike the traditional shaft trommel screen, the shaftless trommel screen cancels the central axis and adopts a unique shaftless design. When working, the motor drives the trommel body to rotate through the reducer, and the garbage enters the trommel from the feed port. Due to the inclined installation and rotation of the trommel, the garbage keeps rolling and jumping in the trommel and moves toward the discharge port. In this process, materials smaller than the size of the sieve hole fall through the screen and become screened materials; materials larger than the size of the sieve hole continue to move in the trommel and are finally discharged from the discharge port to become screened materials, thereby realizing garbage screening.

Application scenarios of Zhongcheng shaftless trommel screen in garbage screening

Shaftless Trommel Screen

Urban domestic waste treatment: The composition of urban domestic waste is complex, including kitchen waste, waste paper, plastic, metal, glass and other substances. The shaftless trommel screen can perform preliminary screening of mixed garbage and separate the organic, inorganic and recyclable materials. For example, fine particles such as kitchen waste are separated as underscreen materials for composting or anaerobic fermentation to produce biogas; while larger recyclables such as plastics and metals are further recycled as overscreen materials. This helps to improve the efficiency and pertinence of subsequent garbage treatment processes.

Industrial waste treatment: Garbage generated during industrial production, such as construction waste and industrial waste residues, often has large particle sizes and irregular shapes. The shaftless trommel screen can effectively screen these industrial wastes with its strong screening ability and wear resistance. In the treatment of construction waste, bricks, stones, concrete blocks, etc. can be graded to provide raw materials for the production of recycled aggregates; in the treatment of industrial waste residues, useful components in the waste residues can be separated from impurities to achieve resource recovery and reuse.

Hazardous waste screening: For some hazardous wastes, such as used batteries and electronic waste, screening is required before harmless treatment to separate substances of different components. The closed design of the shaftless trommel screen can effectively prevent the leakage and diffusion of hazardous waste during the screening process, ensuring the safety of operators and the environment. At the same time, its precise screening effect helps to improve the accuracy and effectiveness of hazardous waste treatment.

Advantages of Zhongcheng shaftless trommel screen over traditional screening equipment

Shaftless Trommel Screen

Strong anti-entanglement ability: The central axis of the traditional shafted trommel screen is easily entangled by long strips of materials in the garbage, such as plastic film and fabric, causing equipment failure and affecting screening efficiency. Since the shaftless trommel screen has no central axis, it avoids the entanglement problem, can operate continuously and stably, and greatly reduces the downtime and maintenance time of the equipment. For example, when dealing with urban domestic waste containing a large number of plastic bags and cloth strips, the shaftless trommel screen can easily cope with it, while the traditional shafted trommel screen may frequently experience entanglement and blockage.

High screening efficiency: The trommel design of the shaftless trommel screen allows the material to move more fully in the screen trommel, enabling all-round screening and increasing the probability of contact between the material and the screen. At the same time, its unique structural design allows the screened material to be discharged quickly, reducing the secondary blockage of the screened material, thereby improving the overall screening efficiency. Experimental data show that under the same processing capacity, the screening efficiency of the shaftless trommel screen can be increased by 15% - 20% compared with the traditional shafted trommel screen.

Low maintenance cost: The shaftless trommel screen has a relatively simple structure, which reduces vulnerable parts such as the center shaft, reducing the maintenance difficulty and cost of the equipment. In addition, due to its strong anti-winding ability, it reduces equipment damage and maintenance times caused by winding. Daily maintenance mainly focuses on the replacement of the screen and the maintenance of the drive device, with small maintenance workload and low cost. In contrast, during the use of the traditional shafted trommel screen, it is necessary to frequently clean the windings on the center shaft, and the center shaft and bearings and other parts wear faster, resulting in high maintenance costs.

Strong adaptability: The shaftless trommel screen can flexibly adjust the parameters such as the aperture of the screen, the speed of the trommel and the inclination angle according to different garbage disposal needs to adapt to the screening of garbage of different properties and particle sizes. Whether it is processing fine kitchen waste or large-sized construction waste, the ideal screening effect can be achieved by reasonably adjusting the equipment parameters. This high adaptability enables the shaftless trommel screen to play an excellent role in different types of garbage disposal projects.

Shaftless Trommel Screen

Good environmental performance: During the working process, the shaftless trommel screen can effectively reduce the flying of garbage dust and reduce the pollution to the surrounding environment due to its good closure. At the same time, its efficient screening effect helps to improve the resource utilization rate of garbage, reduce the amount of landfill and incineration, thereby reducing the negative impact on the environment during garbage disposal, which is in line with the concept of environmental protection and the requirements of sustainable development.

Zhongcheng shaftless trommel screen has shown broad application prospects in the field of garbage screening with its unique working principle and significant performance advantages. Whether it is the treatment of urban domestic garbage, industrial garbage or hazardous waste, the shaftless trommel screen can play an important role and provide strong support for the reduction, resource utilization and harmless treatment of garbage. With the continuous advancement and innovation of technology, shaftless trommel screens will play a more important role in the waste treatment industry and help the development of environmental protection.

Author : Wanqin Zou

Zou Wanqin is a news column writer. She has more than 6 years of experience in the garbage screening and crushing machinery industry, has a deep understanding of environmental protection machinery, and is happy to share the latest machinery and latest technological developments in the industry.