Oji Materia Co., Ltd. had addressed the improvement for a purpose of efficient operation of compressors as part of energy saving project since 2009. The Project had been proceeded in 2 stages, as1st stage we carried out the investigation of air leak and improvement in order to reduce the loss of air consumption, and succeeded to save the amount of air volume to 500,000Nm
3⁄year.
We had achieved the introduction of visual inspection for power, pressure, blow and unify how many units are suitable for this mill by console made by MIWA Inc.
As a result of taking actions above, we had neduced not only basic wit of air 0.144kW⁄Nm
3 to 0.104kW⁄Nm
3 but also power consumption 2.8MkW⁄year to 1.6MkW⁄year.
This result shows we have adviced 40% cost reduction as an environment effects.
In the meantime,
-To install the pressure monitoring alarm system,
Trend supervisions of air pressure, flow rate, power consumption
-To check the basic unit of air,
These operation gave a benefit below and we can find the facility abnormal promptly.
Abnormal situation of facility will be able to be recognized promptly.
As a 2
nd stage, we had archived the optimized low pressure from 0.65MPa to 0.53MPa gives 130,000kW⁄year cost merit.
Also in order to reduce the air consumption, we thought about purchasing devices to save energy in air blow line.
View full abstract