How are melt-blown filters made？
MBR membrane
The food industry with PP folded filter testing and operation method of sterilization
by：Lvyuan Filter
2021-01-25
The food industry with PP folded filter testing and operation method of sterilization
PP folded filter is superfine polypropylene fiber membrane and non-woven fabric or ( Silk screen) Folding, internal and external support layer filter shell center rod and the end cover is made of hot melt welding technology processing and forming, does not contain any cement, no leakage, no secondary pollution.
detection steam supply and pressure of compressed gas, set them on the required value, the pressure value should be set at 1. 5 bar between 2 bar.
open the valve, purify the steam line until completely remove the condensate.
open valve, until completely discharge condensate.
open the valve slowly, increase the flow of steam, to wait for 3 to 4 minutes further heating PP folded filter.
some close vent valve, make continuous discharge steam containing water droplets.
open the steam valve to establish stable flow respectively, allowing the condensed matter and discharge the air in the filter. At this time must pay attention to the pressure gauge, filter time by delta p ( p1 - p2) Less than 350 mbar.
to ensure that all air and condensate through effective discharge valve, the process can see there are a bunch of steam and water droplets in the continuous flow.
the temperature of the steam in the PP folded filter downstream by the determination of 121. 1 ℃, and guarantee the temperature below 128 ℃, the timer running, sterilization time setting in 30 minutes or more, during the period of pressure value and temperature value should be detailed records.
steam after completely ruled out, close the valve, and increase the amount of gas filter, maintain gas flow cooling until the whole system pressure thermometer shows around 30 ℃.
PP folded filter is superfine polypropylene fiber membrane and non-woven fabric or ( Silk screen) Folding, internal and external support layer filter shell center rod and the end cover is made of hot melt welding technology processing and forming, does not contain any cement, no leakage, no secondary pollution.
detection steam supply and pressure of compressed gas, set them on the required value, the pressure value should be set at 1. 5 bar between 2 bar.
open the valve, purify the steam line until completely remove the condensate.
open valve, until completely discharge condensate.
open the valve slowly, increase the flow of steam, to wait for 3 to 4 minutes further heating PP folded filter.
some close vent valve, make continuous discharge steam containing water droplets.
open the steam valve to establish stable flow respectively, allowing the condensed matter and discharge the air in the filter. At this time must pay attention to the pressure gauge, filter time by delta p ( p1 - p2) Less than 350 mbar.
to ensure that all air and condensate through effective discharge valve, the process can see there are a bunch of steam and water droplets in the continuous flow.
the temperature of the steam in the PP folded filter downstream by the determination of 121. 1 ℃, and guarantee the temperature below 128 ℃, the timer running, sterilization time setting in 30 minutes or more, during the period of pressure value and temperature value should be detailed records.
steam after completely ruled out, close the valve, and increase the amount of gas filter, maintain gas flow cooling until the whole system pressure thermometer shows around 30 ℃.
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