EN
In the feed machinery industry, hammer mill as the core equipment, bears the important task of crushing all kinds of raw materials into suitable particle size. However, the dust and noise problems generated during its operation not only pollute the working environment and threaten the health of operators, but also may affect the normal operation and service life of the equipment.
Optimization of dust extraction and removal systems
Efficient dust extraction and dedusting systems are essential in reducing dust. Many advanced feed producers use integrated baghouse dust collectors with their hammer mills. Bag filter using fiber fabric filtration, when the dust-containing gas through the bag, the dust is blocked on the surface of the bag, the purified gas is discharged from the bag. In order to improve the dust removal efficiency, need to regularly clean or replace the bag to prevent the bag from clogging the effect of dust absorption.
In addition, in the crusher inlet, outlet and crushing chamber and other major parts of the dust, the installation of local dust cover is also a common practice. Through the reasonable design of the shape of the dust hood, location and air volume, can effectively collect the dust generated to reduce its diffusion in the workshop.
Controlling material moisture
The humidity of the material itself has a significant impact on the dust generated during the pulverizing process. Too dry materials are more likely to produce dust when crushed, therefore, appropriate increase in material humidity is one of the effective means to reduce the dust. However, it should be noted that the humidity of the material should be controlled within a reasonable range, otherwise it may lead to the material adhering to the inside of the crusher, affecting the crushing effect and equipment operation.
Some feed mills use spray humidification device, in the material into the grinder before the uniform spray, so that the material humidity to the appropriate level. There are also enterprises in the raw material storage links, through the control of humidity conditions in the warehouse, to maintain the relative humidity of the material is stable, from the source to reduce the dust generated in the crushing process.
Strengthen the sealing of the equipment
The sealing of the hammer mill is directly related to whether dust will leak into the surrounding environment. Check and strengthen the sealing performance of the equipment is an important measure to reduce dust spillage. For each connection part of the crusher, such as the connection between the inlet and the hopper, the interface between the outlet and the conveying pipeline, and the splicing of the casing, etc., use sealing tape or gasket for sealing treatment.
Selection of low-noise equipment and optimized structural design
Reduce the noise from the source, can choose to use the advanced design and manufacturing process of low noise hammer crusher. At the same time, the reasonable design of the shape of the hammer blade, the arrangement and the gap with the screen, reduce the impact and friction noise of the material in the crushing process.
In terms of equipment structure, the use of materials with good sound insulation and vibration damping performance to make the crusher shell. In addition, the base of the crusher vibration damping design, installation of vibration damping pads or vibration damping springs, to reduce the vibration generated by the operation of the equipment is transmitted to the ground and other structures, thereby reducing the spread of noise.
Installation of soundproofing and muffling devices
Installation of soundproof cover around the crusher is a common method to reduce noise. Soundproof cover is usually made of sound insulation performance of good materials, such as high-density fiberboard, soundproof rubber, etc., can be most of the noise generated by the crusher blocked in the cover.
Installation of mufflers in the air inlet and outlet of the pulverizer can effectively reduce airflow noise. The muffler utilizes the principle of acoustics to reduce the noise generated by gas flow by buffering, diffusing and absorbing the gas flow.
Regular maintenance and repair
The good running condition of the equipment is the basis for reducing noise, and it is vital to carry out regular maintenance on the hammer vane crusher. Timely inspection and replacement of worn out hammers, bearings, belts and other parts to ensure smooth operation of the equipment. Worn parts in the operation process is prone to abnormal vibration and noise, through regular maintenance, can be avoided due to parts damage caused by the increase in noise.
In summary
By adopting the above series of measures against dust and noise problems, enterprises in the feed machinery industry can effectively improve the working environment, safeguard the health of employees, while improving the stability of the operation of the equipment and productivity, and promote the feed production process to the green, environmentally friendly and efficient direction.
