Dust vacuum system design
Abstract:
Dust ,which carries lots of bacterial virus and ovum flying forwarding in the air ,has become a formidable enemy of human being ,endangering the mankind’s health , Industrial dust and fine dust cause various kinds of incurable occupational disease among workers. Also, excessive dust leads to environmental pollution, having a influence on the people’s daily lives and work, causing respiratory disease,etc. All these make the Dust collector indispensible in the workshop.
By using the cyclone dust rotating centrifugal force generated by gas, the dust is separated from the flow of a dry gas - solid separation device, which forms the Cyclone Dust Collector. The Cyclone Dust Collector is widely used, which featured in it’s simple structure, effectiveness in dust removal, simple operation, and low cost. Cyclone Dust Collector is efficient for the capture, separation of more than 5 ~ 10μm dust. But as to the dust under 5-10μm ,it performs less effectively. Therefore, the Cyclone Dust Collector is mostly used in the casting workshop, purifying the coarse particle dust or becomes the primary treatment of multistage purification.
In the negative pressure dust pelletizing system ,removal equipment was set in front of the ventilator .it’s characteristics are as follows : 1.Because the removal equipment was set in front of the ventilator ,the gas passing through the ventilator has been removed ,therefore, the dustiness index is low 2.The dust collector and the pipeline situated in the negative pressure section ,which is easy to snifting the air ,leads to air leak .the air leak ratio of dust vacuum system is 5% to 10% ,increasing the air quantity of ventilator ,which leads to the electricity cost. 3. should be reduced in the dust collector and pipeline as much as possible In designing the dust vacuum system.
Key words: Casting, Cyclone Dust Collector, vacuum dust removal 目 录
1 绪 论
1.1铸造车间的污染及其除尘状况的概述......... ......... ......... ... 1
1.1.1中国铸造业现状及铸造车间污染..................................1
1.1.2研究目的和意义........................ .......................1
1.1.3 除尘的目的...................................................2
1.1.4铸造车间组成..................................................2
1.2工业生产中的除尘设备............................................3
1.2.1除尘系统的组成................................................3
1.2.2除尘设备在铸造车间生产中的应用................................3
1.2.3铸造车间中除尘设备运行现状 ...................................3
1.3除尘设备的选择..................................................4
1.3.1除尘系统分类及特点............................................4
1.3.2原始资料(数据)及设计技术要求.................................. 4
1.4旋风除尘器概述..................................................4
1.5旋风除尘器的优缺点..............................................5
1.5.1旋风除尘器的优点..............................................5
1.5.2旋风除尘器的缺点..............................................5