Filter cloth for vacuum filter
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This post was last edited by lflsedin on 2015-5-19 08:13. The filter cloth of the vacuum filter has been in use for a long time, resulting in poor filtration performance; how should this be addressed?
Blowing it with steam works very well; you might want to give it a try
Increase the water volume used for flushing the filter cloth. From the perspective of the sedimentation process in the sedimentation tank, examine what happens to the sedimentation clumps; larger agglomerated particles are more conducive to the dewatering of fine sludge, and this should result in better performance of the filter cloth……
Low-pressure steam is added to the filter cloth washing water to maintain a temperature of around 70 degrees. The effect is pretty good.
1: Rinse 2: Replace 3: Be sure to rinse more times when using it again.
What kind of water is used for flushing the filter cloth? The water inlet point of the boiler, where a slightly higher temperature is available, can be used to raise the temperature of the flushing water, which also yields good results
Shell’s wash water is the clarified water from this unit
Increase the amount of flushing water, then use steam for purging; also check whether the track shoes are misaligned
Can it be washed in acid or alkaline solution?
After being used for a period of time, usually 3 to 4 months, the filter cloth of belt filter presses experiences a significant decline in various properties such as its permeability; the cycle time per operation increases, and the filtering efficiency drops markedly. If this happens, the best solution is to clean the filter cloth. Tianqing Environmental Protection will show you how to clean the filter cloth of a filter press correctly. http://www.sdguolvji.com/upLoad/news/month_1405/201405141247128652.jpg 1. Traditional cleaning method: Remove the filter cloth from the filter plate, soak it in water, and then brush it – this is also the simplest, most convenient, and most effective way to clean the filter cloth. 2. High-pressure water gun flushing method: Under high water pressure, some of the oil and wax can be washed away, but not completely; the oil and wax trapped in the capillaries of the filter cloth are difficult to remove thoroughly. 3. Chemical treatment cleaning method: If the filtrate is acidic, we should use weakly alkaline water to soak the filter cloth; generally, it is soaked for 10–24 hours. After that, the filter cloth is gently rubbed a few times, washed with clean water, and then dried to about 90% dryness before it can be used again. Similarly, for acidic or neutral filtrates, we only need to change the soaking solution to slightly acidic. It is worth noting that when the filtrate is sticky, we need to add some appropriate diluents to the soaking solution in order to achieve a better washing effect. Tianqing Environmental Protection reminds you: Regular cleaning of the filter cloth is necessary to improve the efficiency of belt filter presses and extend their service life. Article address: http://www.sdguolvji.com/zhishi/14254.html