Project introduction: some large equipment in the plant of guizhou datang mustang zhai power generation co., ltd. will produce a large amount of noise when operating, and the noise source is relatively close to the residential area, so the noise transmission will have a great impact on the residents' life and work. After we visited the site together with the owner, we decided to control the noise of the equipment in batches so as to make the noise emission reach the national standard.

It is mainly divided into two parts:

1. Slurry circulating pump noise control.

2. Noise control of absorber oxidation fan and ash cleaning fan.

Treatment measures:

1. Slurry circulating pump noise control

5 slurry circulating pumps for a set. Build 3 sound insulation room, the size of sound insulation room according to the site, the use of porous panel, sound absorbing material, panel frame, etc. Install the maintenance glottis in the lower part of the sound insulation room, and install the lighting and sound insulation window on the top. The air muffler is installed at the bottom of the sound insulation room, and the exhaust muffler is installed at the top opening to ensure the normal operation of the equipment and noise control.

2. Absorber oxidation fan and ash cleaning wind

Machine noise control tower oxidation fan to build 3 sound insulation room, sound insulation room size according to the site conditions, the use of porous panel, sound absorbing material, panel frame, etc. Install the service glottis at the lower part of the sound insulation room.

Three sound-proof rooms were built by the ash cleaning fan. The size of the sound-proof rooms was determined according to the site conditions. Install the service glottis at the lower part of the sound insulation room. The air muffler is installed at the bottom of the sound insulation room, and the exhaust muffler is installed at the top opening to ensure the normal operation of the equipment and noise control.

Control effect: after setting the noise reduction measures, the factory boundary noise emission shall comply with the gb12348-2008 class ii area standard of industrial enterprise factory boundary environmental noise emission standard, namely ≤60dB (A) during the day and ≤50dB (A) at night.