The test results show that the apron can reduce back flow at the dam toe, and the piers can obviously diminish river bed scouring near the scour resistant wall.
Turn on back wash drainage valve (V-4) and air scour valve (V-2). Air scour lasts for a moment.
将反洗排水阀(V - 4)，空气洗净阀(V - 2)置于[开]，进行空气清洗并持续一段时间。
3
The coal washing plant steam boiler with high and new technology can effectively avoid the back wall by high temperature gas scour damage, safe and reliable to use.