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How to use bag filters safely
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- Time of issue:2020-04-20
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How to use bag filters safely
- Categories:company news
- Author:
- Origin:
- Time of issue:2020-04-20
- Views:0
Information
The filter system in daily operation needs to constantly check the pressure difference between the inlet and the outlet. When the pressure difference reaches 0.05-0.1Mpa, the filter bag should be replaced in time to avoid the pressure difference over the ambassador filter bag cracking and damage to the support net. Correctly open the upper cover of the filter after filtering. Do not open the cover under pressure in the bag filter, otherwise the remaining liquid may be sprayed out, resulting in liquid loss and personal injury.
Close the input valve; when there is pressure at the outlet, close the output valve to confirm that the receiving channel of the exhaust valve has been connected to the safety place or the suction port (especially when filtering toxic and corrosive liquids), then open the exhaust valve , To prevent the liquid from harming and polluting the staff and the surrounding environment.
Check the pressure gauge to make sure that the internal pressure is 0, and the bag filter should be separated from the piping system. If there is a drain valve, confirm that the drain liquid is received at the recovery place and open the drain valve; wait for the remaining liquid in the bag filter to run out through the drain valve and close the drain valve. This discharge work can be done in accordance with the pressurization method (please refer to the pressurized discharge process).
Unscrew the top cap and lift the top cap, the multi-bag filter needs to be turned through a certain angle. Change the filter bag 1. The high-efficiency filter bag is made of precision fibers, and the hydrophilicity of these materials is weak. The appearance of the fiber will not be wetted by water, so like other filter elements that use the same material, before use, it must be moistened with another liquid with a lower surface tension. Before the installation, you must immerse the filter bag in the pre-wet liquid matching the filter liquid for a few minutes.
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