Vertical pressure leaf filters are your ideal choice for batch process applications requiring high flow rates in a small footprint. As a result, it is suitable for places where the space is limited or interrupted flow is expected. In addition, we also offer horizontal pressure leaf filters to meet different industrial demands.
1.No filter cloth is required. Filter leaves are made of 5 layers of stainless steel wire screen and enjoy a long service life and a low maintenance cost;
2.Fully closed structure and fully automated operation reduce environmental pollution and labor costs;
3.A variety of filter aids can be added and the filter area ranges from 3 m2 to 125 m2;
4.The filter can operate in both dry and wet cake discharge modes to meet the demand of different industrial production;
5.It applies to batch process applications requiring high flow rates and small solids removal in a small footprint and offer a filter area of up to 100 m2.
1.Vertical pressure leaf filter consists of a filter housing, filter leaves, a top cover, a vibrator assembly, a cake discharge nozzle and a manifold. The filter housing is provided with an inlet, an outlet, a davit arm, a butterfly valve, etc.
2.In the filter, filter leaves are evenly placed. At the bottom, filter leaves are inserted into the manifold that collects the filtrate. At the top, filter leaves are clamped by leaf clamping bar with spacer rings to make the filter leave easy to install and remove.
3.The spacing between filter leaves ranges from 30 mm to 100 mm.
4.For wet cake discharge, with or without water spray nozzles are provided.
| Model |
Filtering area m2 |
Housing diameter(mm) |
Height (mm) |
Weight(kg) |
| LFLV-4 |
4M2 |
550 |
2010 |
600 |
| LFLV-8 |
8M2 |
700 |
2425 |
800 |
| LFLV-10 |
10M2 |
800 |
2630 |
900 |
| LFLV-15 |
15M2 |
900 |
2650 |
1100 |
| LFLV-20 |
20M2 |
1100 |
3000 |
1500 |
| LFLV-30 |
30M2 |
1200 |
3050 |
1750 |
| LFLV-40 |
40M2 |
1300 |
3280 |
2100 |
| LFLV-50 |
50M2 |
1400 |
3450 |
3000 |
| LFLV-60 |
60M2 |
1500 |
3630 |
3100 |
| LFLV-80 |
80M2 |
1600 |
3860 |
3600 |
| LFLV-90 |
90M2 |
1700 |
4000 |
4000 |
First, precoat is applied before filtering. Agitate precoat tank containing filtrate and filter aid (diatomaceous earth, perlite, etc.) for around 10 minutes. Then, fill the vessel with the mixture, empty all the air, and pressurize the vessel. The precoat runs for 15 minutes at a fluid rate around 30-60 gallons per square foot per hour.
After precoating, slurry is forced through the vessel under pressure. Solid particles are trapped in the precoat, or filter media while clarified liquid flowing out of the filter through the manifold.
Choose whether to dry filter cake as needed. If you need dry cake, compressed air, inert gas or steam is commonly used for cake drying before discharging. After drying, filter cake is discharged by a pneumatic vibrator through a butterfly valve located at the bottom of the filter. Wet cake may be discharged by a pneumatic vibrator or spray nozzle.
When filter cake needs to be recycled or disposed as solids, you may choose dry cake discharge, for example, sugar, cocoa or edible oil filtration, activated carbon removal, molten sulphur filtration or catalyst recovery. Compressed air, inert gas or steam is commonly used for cake drying before discharging.
If the cake formation is too low for dry discharge, the disposal is cheap (regeneration for wet discharge is shorter) or the cake needs to be transported via a pump, you may choose wet cake discharge, for example, saline water filtration.
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