Stainless Steel Vertical Pressure Leaf Filter For Water Treatment-Yuwei Filtration Equipment Co., Ltd.

Description

The pressure leaf filter, also known as the leaf filter, is a high-efficiency, energy-saving, closed-operation precision clarification and filtration equipment. The product has a unique design structure, high filtration efficiency, and good filtrate transparency and clarity. No filter paper, filter cloth or filter element is consumed, only a small amount of filter aid is consumed, the filtration cost is low, and the equipment is easy to operate and maintain. The equipment can be customized for manual slag discharge and automatic slag discharge, and the filtering area ranges from 2 square meters to 100 square meters. According to the process requirements of filtration, the airtight container has two materials of carbon steel and stainless steel for users to choose.

Details

Vibration slag removal device

Remove the slag by vibration to reduce the labor intensity of workers.

Specification

Model	Filter cake volume	Processing power			Workpressure	Filtering cylinder volume	I/O Connection	Discharging outlet	Filter spacing	Weight
Model	Filter cake volume	Grease	Resin	Drinks	Workpressure	Filtering cylinder volume	I/O Connection	Discharging outlet	Filter spacing	Weight
YWBL-2	30L	0.4-0.6(t/h)	1-1.5(t/h)	1-2(t/h)	0.1-0.4(Mpa)	120L	DN25	DN100	50mm	150Kg
YWBL-4	60L	0.8-1.2(t/h)	2-3(t/h)	2-4(t/h)		250L	DN40	DN125	50mm	180Kg
YWBL-7	105L	1.4-2(t/h)	3-5(t/h)	4-8(t/h)		420L	DN40	DN150	50mm	326Kg
YWBL-10	150L	2-3(t/h)	5-8(t/h)	5-10(t/h)		890L	DN50	DN200	70mm	474Kg
YWBL-12	240L	2.4-3.6(t/h)	6-9(t/h)	6-12(t/h)		1190L	DN50	DN250	70mm	554Kg
YWBL-15	300L	3-5(t/h)	7-12(t/h)	8-16(t/h)		1580L	DN50	DN250	70mm	815Kg
YWBL-20	400L	4-6(t/h)	10-15(t/h)	10-20(t/h)		1770L	DN65	DN250	70mm	910Kg
YWBL-25	500L	5-7(t/h)	12-18(t/h)	12-24(t/h)		2200L	DN65	DN300	70mm	1024Kg
YWBL-30	600L	6-9(t/h)	14-22(t/h)	15-30(t/h)		2770L	DN65	DN300	70mm	1165Kg
YWBL-36	720L	7-10(t/h)	16-24(t/h)	18-36(t/h)		2870L	DN80	DN300	70mm	1202Kg
YWBL-40	800L	8-12(t/h)	20-30(t/h)	20-40(t/h)		3500L	DN80	DN350	70mm	1342Kg
YWBL-45	900L	9-13(t/h)	22-32(t/h)	22-44(t/h)		3630L	DN100	DN350	70mm	1422Kg
YWBL-52	1040L	10-15(t/h)	25-40(t/h)	26-52(t/h)		4380L	DN100	DN350	75mm	1900Kg
YWBL-60	1200L	12-18(t/h)	38-42(t/h)	30-60(t/h)		5100L	DN100	DN400	75mm	2114Kg
YWBL-70	1400L	14-20(t/h)	35-50(t/h)	35-70(t/h)		6940L	DN125	DN400	80mm	2662Kg
YWBL-80	1600L	16-24(t/h)	40-60(t/h)	40-80(t/h)		8300L	DN125	DN400	80mm	3882Kg

Features of pressure leaf filter

Mechanical vibration for automatic slag removal, open the butterfly valve, start the vibration slag removal device, and remove the slag by vibration to reduce the labor intensity of workers.
The specially customized filter plate does not need filter cloth and paper. The automatic slag removal filter uses a specially made stainless steel composite woven filter screen, which is corrosion resistant, easy to clean, has a long service life, can be used continuously for 3-5 years, and has low maintenance cost.
Closed and environmentally friendly, in line with environmental protection standards, pipeline connection, fully closed filtration, products do not volatilize, do not throw away, and have good quality.
High energy saving efficiency, filtering the residue or activated carbon (clay) in the liquid, or decolorization filtering, can replace the plate and frame filter.

Vertical Pressure Leaf Filter Working Principle

Structure of pressure leaf filter

The closed plate filter is mainly composed of a complete filtering system consisting of a filter host, a delivery pump, pipelines, valves and other auxiliary equipment. The filter host is composed of filter tank, filter screen, cover lifting mechanism, automatic slag removal device, etc.

Filtering principle of pressure leaf filter

The filter pump inputs the materials into the tank and fills it. Under the effect of pressure, the solid impurities in the materials are trapped by the filter screen, forming a filter cake on the filter screen. The filtrate enters the outlet pipe through the filter screen and flows out of the tank, thus obtaining clear filtrate.
With the increase of filtering time, more and more solid impurities are trapped on the filter screen, which makes the thickness of filter cake increase continuously, so that the filtering resistance increases and the pressure in the tank increases. When the pressure rises to a certain value, it is necessary to discharge the slag, stop the input of filtrate to the tank, blow compressed air into the tank through the overflow pipe, press the filtrate in the tank into other containers, and blow dry the filter cake. Close the compressed air, open the butterfly valve, start the vibrator to vibrate the filter blade, shake down the filter cake on the filter screen and discharge it through the slag discharge port below the tank.
The liquid after preliminary solid-liquid separation is used to support and adsorb diatomite and other filter aids through stainless steel filter screen blades in the sealed enclosure of the filter tank. After the filter aid is mixed with the material in the mixing tank, it circulates through the delivery pump to form a stable filter cake layer on the filter screen, that is, diatomite pre-coating.
After pre-coating, start filtering. Fine filter aid particles can provide countless fine channels to absorb suspended impurities in the liquid, so that the material can be filtered substantially through the filter cake layer to remove impurities, flow into the inner chamber of the filter blade, and then flow out of the clear liquid through the liquid outlet pipe. In addition, if decolorization is required during filtration, a certain proportion of activated carbon shall be added.

Application of Pressure Leaf Filter

Oil industry: filtration of machine pressed crude oil, gel oil, hydrogenated oil, winterized oil, etc.
Food industry: activated carbon decolorization and filtration of sugar liquor such as granulated sugar and glucose, and clarification and filtration of alcohol, fruit juice and cool drinks.
Chemical industry: crystallization and separation in petrochemical industry, inorganic chemical industry and organic chemical industry, filtration and separation of various catalysts, decolorization and filtration of chemical products, etc.
Environmental protection industry: for water intake from rivers, rivers and lakes, for insurance purification and filtration of supernatant from sewage treatment stations, and for purification and filtration of recycled water from swimming pools.

Frequently Asked Questions

What type of filter media does this equipment use, and does it require constant replacement?

The vertical pressure leaf filter uses a specially customized, corrosion-resistant stainless steel composite woven filter screen rather than consumable filter paper or filter cloth. This screen traps solid impurities and has a long continuous service life of 3 to 5 years, drastically reducing consumable costs and maintenance downtime.

How is the solid waste or "filter cake" removed from the machine?

The equipment features an automated mechanical vibration slag removal device. Once the filtration cycle is complete and the filter cake is blown dry with compressed air, the operator simply opens the butterfly valve and starts the vibrator. The vibration shakes the filter cake off the stainless steel blades, allowing it to drop cleanly through the bottom discharge port, which significantly reduces manual labor.

What is the working principle behind the "pre-coating" process in this filter?

Before primary filtration begins, a filter aid (such as diatomaceous earth) is mixed with liquid in a mixing tank and circulated through the system. This mixture coats the stainless steel filter screen blades, forming a stable "pre-coat" filter cake layer. Once this layer is established, the actual material is pumped through; the microscopic channels of the filter aid effectively trap suspended impurities while allowing the clear filtrate to flow out.

What are the standard capacities and operating parameters for these models?

The filter can be customized with a filtration area ranging from 2 to 200 square meters. Depending on the specific model (from YWBL-2 to YWBL-80), the equipment can handle maximum flow rates ranging from 1 up to 800 tons per hour. The system operates safely at standard working pressures between 0.1 and 0.4 MPa and provides a filtration precision of 10 to 200 μm.

Which industries benefit the most from this specific filtration system?

Because it is a fully closed and environmentally friendly system, it is highly versatile. It is widely used in the food and beverage industry (clarifying syrups, juices, alcohol, and edible oils), the chemical industry (filtering catalysts and petrochemical separations), and the environmental protection sector (purifying river water, sewage treatment supernatant, and recycled swimming pool water).

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