1. Choose the whole site package
The whole station encapsulation of the concrete mixing plant is to encapsulate all the equipment of the mixing plant. The encapsulation material of the main engine is made of sound insulation board, and the closed material yard is made of hollow bricks for sound insulation, etc., which can reduce the noise to a low level.
2. Working new concrete mixer
The noise source of the concrete mixing plant is mainly from the concrete mixing main engine of the concrete mixing plant. The new concrete mixing main engine can effectively reduce the noise produced by the concrete mixing plant.
1. Improve the manufacturing accuracy of the concrete mixing main engine bin body: study a complete set of processing technology plans, improve the manufacturing accuracy of the concrete mixing main engine bin body, so that the space between the lining plate of the bin body and the mixing blade can reach less than 0.5mm during installation, and avoid When the gap is too large, it is easy to jam the stone and make noise. Use a boring machine to improve the parallelism of the two stirring shafts and then improve the stability of the transmission system to reduce the noise.
2. Research and development of reducers for new concrete mixers: the previous reducers for mixers were manufactured in accordance with construction machinery specifications with low precision and high noise, which could no longer meet the needs of concrete mixing stations for urban products. Here, a cross-industry plan is adopted to integrate reducers in the automotive industry The planning thinking is applied to the mixing station, and the helical arc bevel tooth right-angle transmission is used to improve the manufacturing accuracy of the tooth shape, and the surface of the tooth shape is nitrided, so that the reducer of the new mixer will work smoothly and have low noise.
3. Gas path noise reduction
Many concrete mixing plants use cylinders as implementing elements, which have a large impact and high noise when reaching the end of the stroke. The air-liquid connection buffer cylinder is introduced to hydraulically buffer when reaching the end of the stroke to reduce noise.