Amar Equipments Pvt. Ltd

Leaf Filter

Product Specifications

Technical Specification

Vessel M.O.C	Carbon steel(M.S.), Optionally stainless steel (304, 316, 316L)
Leaves M.O.C	Outer mesh of SS- 316 and inner mesh, frame, bush and handle etc of SS-304, optionally complete SS- 316
Max. Working Pressure	5 kg / cm² ( Bar)
Max Working Temperature	120°C with Neoprene gasket and optionally 200° C with Viton / Silicon Gasket

Vertical Pressure Leaf Filters

Model No.	Filter area m2	No. Of. Leaves	Max. Wet Cake Vol./Ltrs.	Hight mm	Floor Area Occupied mm x mm	Net. Tank Vol. Ltrs.
V1	1	5	25	1300	710 x710	150
V2.5	2.5	5	62.5	1550	760 x 760	375
V5	5	5	125	2500	1050 x 1050	580
V7.5	7.5	7	187.5	2600	1160 x 1160	800
V10	10	9	250	2600	1200 x 1200	950
V15	15	11	375	2600	1450 x 1450	1330
V20	20	11	500	2800	1650 x 1650	1210
V25	25	15	625	2800	1650 x 1650	1990
V30	30	15	750	3000	1800 x 1800	2740
V40	40	17	1000	3100	2000 x 2000	3600
V50	50	17	1250	3300	2200 x 2200	4500
V60	60	19	1500	3400	2400 x 2400	5400

Horizontal Pressure Leaf Filters

Model No.	Filter area m2	No. Of. Leaves	Max. Cake Vol.- Ltrs.	Floor Area Occupied mm x mm	Net. Tank Vol. Ltrs.
H 5	5	5	160	1350 x 2100	800
H 10	10	15	320	1650 x 3730	1070
H 15	15	23	480	1650 x 4930	1460
H 20	20	30	640	1650 x 6010	1790
H 25	25	37	800	1650 x 7030	2130
H 30	30	22	960	2200 x 5590	2600
H 40	40	30	1280	2200 x 6790	3290
H 50	50	37	1600	2200 x 7810	3890
H 60	60	44	1920	2200 x 8890	4490
H 70	70	32	2240	2500 x 7590	5590
H 80	80	20	2560	3100 x 5330	7660
H 100	100	25	3200	3100 x 6080	8840

Note :	•	The cake volume is the total wet cake capacity.
	•	The flow rates &batch size will very as per % of impurities, liquid viscosity & pump capicity.
	•	Filters of higher capicity & with specific requirement can be customized as per the requirement.
	•	Only leaves of Pressure Leaf Filters or repairing of old turn leaves can be offered.
	•	Since development is a continuous process specifications are subject to change without prior notice.

Product Description

Pressure Leaf Filters:

Salient Features :

»	1-100m² filtration area offered as per requirment.
»	Stainless steel filter elements, hence no repetitive cost, washing and maintenance of filter cloth.
»	Filtration rate are 2-3 times higher on same filter area.
»	Automatic cake discharge with mechanical or pneumatic vibrator options & spray nozzle for wet cake discharge.
»	Ideal replacement for plate & frame filter. Closed system, no maintence due to SS filtration mesh, low retention of oil, less occupancy of space etc.
»	Very low% of unfiltered liquid retention in cake.
»	Simple & economical bottom opening with 100% opening & optional butterfly valve for vertical PLF
»	Closed pressurized operating system hence no spillage & loss of liquid, which helps in handling volatile / inflammable liquids & clean working environment. Entire filtration cycle with cake discharge can be completed without even opening the filter from top.
»	Compact & light hence large saving in floor area & supporting structures.
»	Pressure leaf filter can be completely automated with no human intervention.
»	Can be used for getting filtered liquids as well as cake.
»	Ideal for filtration of edible / non-edible oil, dewaxing, sulphur, copper, API chemicals, Carbon removable, etc.
»	Closed system, no maintence due to SS filtration mesh, low retention of oil, less occupancy of space etc.

Application :

•

Edible oil Industry : Bleached, winterized, deodorized, hydrogenated, fractionzed oil, dewaxing, catalyst, mineral oil.

•

Beverage Industry : For glucose, fruit juice, cold drinks, sugar, vinegar.

•

Chemical Industry : For organic & inorganic salts, dyes, chemicals, plastizers, sulphur, copper.

•

Pharma Industry : For pharmaceutical, intermediates, syrup, bulk drugs, antibiotics, intravenous solution.

•

In Petrochemical Industry : Crude oil, LPG, lubricating oil, sulphur.

How do they work ?

Leaf Filters are ideal for solid-liquid separation & work on principle of precoating & pressure. Pre-coating is done with the help of suitable filter aid about 0.5 to 1% (Bleaching earth, supercel, hyflo, superflo etc.) mixed with the liquid to be filtered. Unfiltered liquid is pumped into the filter vessel. Initially the filter aid starts forming a precoat layer on both sides of the filter leaves, until then coludy material comes out of the filter. Once the layer is formed, pressure starts developing, restricting the impurities. Clear liquid flows from both sides into the leaves (filter elements), flows along the tubular channel & gets discharged from bottom of the leaf. All the leaves are mounted on a common manifold. The leaves start getting choked on both the sides by impurities forming cake, which is in wet from. Once the leaves get choked completely, the pressure rises to 3 kg/cm² & the output flow almost stops. This means the batch size is reached. The pump is stopped & steam / air pressure is applied from the top (without dropping the filter pressure) to filter the material around the leaves held up in the tank & to squeeze the cake further & reduce the liquid retention in it. The hold up unfiltered liquid in the conical portion is taken back.

How is the cake discharged ?

In both vertical & horizontal filters the cake can be dried by steam / hot air & then discharged from the bottom with the help of mechanical / pneumatic leaves vibrator. The whole operation of cake drying takes 30-45 min. & cake discharge takes 5-10 min. For wet cake discharge water spray nozzles are provided. In Horizontal Pressure Leaf Filter wet cake can also be discharged manually by scrapping. The shell is slided out with Hydraulic Mechanism keeping the leaves in fixed position.

How is the Leaf Constructed ?

Each leaf is made of 5-ply of SS wire mesh of different gauge wires. Two outer filtering mesh are hollander Weaves & 3 inner are only for support. The 5-ply wire mesh are held together by a tubular frame & made leak proof by machine rivetting. The quality of filtration & life of filter depends mainly on the quality of outer wire mesh & revetting. We at M/s. Amar Equipments Pvt. Ltd. ensure the quality by inspecting quality of wire mesh & each leaf. Old worn out & torn leaves can be repaired by only replacing the outer hollander weave. Optionally we also provide cloth on the leaves for fine or special filtration.

How is Vertical Pressure Leaf Filter constructed ?

It consist of a vertical MS / SS tank with filter elements (leaves) inside. The leaves are mounted vertically on a common manifold pipe, through which the filtered liquid flows out. On the top, the leaves are held by a vibrating shaft. A mechanical vibrator driven by electric motor / pneumatic vibrator is provided for vibrating the leaf shaft for cake discharge. Optionally spray nozzles can also be provided for wet cake discharge. Jacket for hot filtration can be offered if desired. Over flow, vent / steam / air charging, pressure gauge & safety valve are provided on the top. The top cover is provided with devit arm mechanism for raising the lid for cleaning / removing the leaves.`I` bolts are provided for quick opening and closing of top lid. Hydraulic jack is provided to lift the top for cleaning / removing the leaves. Lugs are provided for mounting the PLF.

Bottom opening is a simple & economical manual swing type which gives 100% opening or optionally a pneumatically actuated butterfly valve is provided which opens about the center axis & divides the bottom in 2 halves.

How is Horizontal PLF Constructed ?

Horizontal PLF works on similar principal but shell is horizontal & leaves are vertical on common manifold. The filter shell has 4 wheels & can be retractable by a hydraulic cylinder on a rail. Two hydraulic cylinders are provided one each for opening & closing the wedge lock mechanism between the shell & cover. A hydraulic power pack unit, pressure gauge, vent / steam valves, panel board etc. is provided. After the filtration & cake drying is over, the outer vessel is retracted, thus opening up the leaves for cake discharge. During opening / cleaning no connections have to be removed as the cover with leaves remain in fixed position. Cake can either be discharged manually by rubber mallet or optionally pneumatic / mechanical vibration can be provided for dry cake discharge. Spray nozzles can be provided for wet cake discharge. Horizontal PLF is preferred for higher filtration area, higher cake capacity or when solid cake is sticky & has to be removed manually in semi dry condition & in short period.

Our Profile:

Experience:

The company was founded in 1974 by Mr Naresh Shah (Chairman) B.Tech. Mech., IIT & M.S. (USA). It started designing, manufacturing & exports of high pressure reactor, industrial filters & heating cooling baths with a vision to provide import substitute products in India at reasonable rates & international quality. Amar Equipment is leader in pressure reactor designing & can supply the same with all desired certifications / approvals like ISO, ASME, CE etc. complying to international safety norms. We have over 37 years of rich experience in manufacturing & supplying high pressure reactors globally.

Facilities:

We have complete in-house setup well-equipped to design, manufacture & inspect all the products & it`s components with all the latest gauges, measuring instruments, machines like

»	CNC Turning Centre	»	Cutting Machines
»	Vertical Machining Centre	»	Rivetting Machine
»	Conventional Lathes	»	Radial Drilling Machine
»	Plasma Cutting Machine	»	Welding Machines
»	Overhead Cranes	»	Grinding Machines
»	Buffing / Polishing Cleaning Equipment etc....

We are a team of overall 75 people with qualified staff, skilled workers & a core team of 12 highly skilled & experienced professional engineers, required to produce the desired quality

Vision:

»	To become a leading global player in manufacturing & supplying all our products.
»	To continuously upgrade the quality of our product & always offer the latest & the best.
»	To develop & manufacture products that work virtually life long without maintenance.
»	To try & cater to all the customer demands & complaints, to ultimately see a delighted customer.
»	To make products that are technically complete, physically reliable, economically competent & ergonomically superior.

Achievements:

Pioneers & largest manufacturer of high pressure reactor & magnetic drive couplings in India year after year since 37 yrs. Over 5000 successful installations world over with more than 1000 delighted customers. Exports to more than 40 countries world wide & 5 distributors in different parts of India for local support. The growth & success of our firm in terms of quality, production & profitability has been positive since its inseption.

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