THE EIMCO-K.C.P. LTD. Anna Salai, Chennai, Tamil Nadu

The EIMCO-K.C.P. Horizontal Vacuum Belt Filter has most of the operating capability of a bottom pickup vacuum filter… additionally, it has the operating flexibility to meet particular processing requirements some unique and exclusive capabilities – Simplicity of operation, and fluctuations, the ability to handle feed with low and high solids concentrations, and highly effective cake washing for increased product recoveries and profitability.

EIMCO-K.C.P.  Spiral Classifiers is art of separating the solid particles in a mixture of solids and liquid into fractions according to particle size or density by methods other than screening. In general, the products resulting are (1) a partially drained fraction containing the coarse material (called the underflow) and (2) a fine fraction along with the remaining portion of the liquid medium (called the overflow).     The classifying operation is carried out in a pool of fluid pulp confined in a tank arranged to allow the coarse solids to settle out, whereupon they are removed by gravity, mechanical means, or induced pressure. Solids which do not settle report as overflow.   EIMCO-K.C.P.  Spiral Classifiers are mechanically the devices are powerfully built, and functionally they are versatile and flexible.   Today’s worldwide acceptance of EIMCO-K.C.P.  Classifiers for washing and dewatering pulps, and in closed-circuit grinding is the result of many years of experience in solving wet classification problems. Because users’ needs vary so greatly, the Classifier is available in a wide range of spiral diameters and pitches, tank shapes and lengths allowing exact compliance with each user’s classification requirements.   Spiral diameters (0.3 m to 2.25 m):   Important in establishing a correct balance between overflow and raking capacity. Bears directly on accuracy of separation and control of agitation.   Spiral pitches (single / double / triple):   Number of ribbons is a factor in controlling degree of agitation. Each ribbon of advanced pitch gives greater raking capacity than equivalent ribbon of spiral using lesser pitch. Triple ribbon spiral highly advantageous for slow-speed operations requiring close separations and high raking capacities.   Adjustable spiral speeds:   Recommended speed of operation given in peripheral MPM is an individual consideration for each ore, and is governed by size, shape and gravity of particle, angle of repose of raking load and desired mesh of separation. Peripheral speeds between 6 and 60 meters per minute are available.   Pool depth:   Choice of pool depth is directly related to effectiveness of pool area. Series 90 units are employed for coarse separations on down to 212 micron (65 mesh); Series 125 units are employed for separations between 300 and 106 micron (48 and 150 mesh); Series 150 units are employed for separations of 150 micron (100 mesh) and finer.   Lifting device:   Lifting device eliminates necessity of draining tank during shutdowns. Classifier may be quickly put in operation after shutdown with tank fully sanded. Hydraulic-type standard on all units 1.2 m in diameter and larger. Fast action hand wheel-operated screw- type lift standard on 1.05 m and smaller.   Main Features   Low Initial Cost. Low Operating and Maintenance Cost. Adjustable Flexible Lifting Device. Simple Flexible Lifting Device. Sectionalized Steel Flights. Replaceable Wearing Shoe

Vacuum filters allow a more complete separation of solids from liquids than other mechanical dewatering filters. Vacuum filters are not as dependent on specific gravity differentials for the degree of clarity, nor are they subject to upset due to variation in the process.The scraper serves mainly as a deflector to direct the cake, dislodged by an air blowback, into the discharge chute, since actual contact with the medium would cause rapid wear. In some cases the filter medium is held by circumferentially wound wires spaced 50 mm (2 in) apart, and a flexible scraper blade may rest lightly against the wire winding.

The EIMCO-K.C.P Rotary Distributor is used for the uniform distribution of screened and/or clarified wastewater over the surface of a biological filter media. Flow is introduced at the center of the unit and is distributed by means of two or more rotating arms with orifices and spreaders. Hydraulic power created by the reaction of the jet-like streams escaping from the orifices is sufficient to rotate the machine. A spreader is provided at each orifice to uniformly distribute the flow in the thinnest possible sheet over the entire filter area.   The general type of rotary distributor recommended is determined by the proper combination of flow and head requirements. Center assembly designs are suitable for standard or high rate applications, with or without flow control features. Distributor arms are of circular pipe construction or may be fabricated from steel plate with single or multiple compartments.   The EIMCO-K.C.P Rotary Distributors are furnished for all bed sizes and with center inlet diameters from 8 in. to 54 in. Feed arrangements may be above or beneath the filter floor depending on media depth and flow transition requirements. The height of the center well is varied according to the head required and support for the distributor arms is provided by either tie rods or trusses.

he EIMCO-K.C.P.  Pre-coat drum filters are coated with a bed of diatomaceous earth or similar material. During cycling a clear filtrate is obtained. When vacuum is applied, the liquid is drawn through the pre-coat material, and solids deposited on the pre-coat surface are removed along with a thin portion of the pre-coat by an advancing scraper blade, as the drum revolves . The blade operates independently of the drive to provide a “precision lathe: movement. Depending on the movement of the blade the drum can operate up to a week without retracting the blade to apply a new pre-coat bed.   Pre-coat filters are recommended when small amounts of solids are to be removed from large volumes of liquids, for clarification or polishing of effluent, or for the filtration of material that produces sticky solids.   They provide a high clarity of filtrate when the filtrate is the valuable product and the cake is to be discarded.

EIMCO-K.C.P. Flocculator provides agitation for treating process liquids, water or wastewater in circular or square tanks. Available in 1 to 25 HP for chemical mixing and blending coagulants, neutralization and general purpose mixing. When used for flocculation, the unit has extremely high circulation capacity up to 25 times the feed rate. EIMCO-K.C.P. has other types of horizontal and vertical paddle flocculators available for flocculating and mixing applications.    

EIMCO-K.C.P. Slakers and Slaker-Classifiers for lime are available in different sizes depending on the application and requirements. Slaker-Classifier combines the slaking action, classifying and grit removal in a single unit. The design provides adequate retention time for optimum slaking efficiency. EIMCO-K.C.P Lime Slakers and Slaker Classifiers are available depending on the design of the hot lime facilities. The recommended Slaker Classifier combines the slaking action, classifying and grit removal in a single, rugged unit.  An axial flow turbine in a baffled compartment is used for complete agitation.  Better pumping action is achieved with a lower horsepower requirement. The classifier section utilizes a large diameter screw, similar to that which has been successfully used in the metallurgical industry for many years.  Virtually all of the plus 65 mesh inert solids are removed in this compartment.  The grit is sprayed with water at the top of the screw to recover any remaining soda values before discharge. The large diameter screw in the Classifier has a force lubricated lower sleeve, using either water or green liquor as the lubricating fluid. The entire unit is heavy-duty construction with stainless steel used in the slaking compartment liners, the agitator shaft and impeller, overflow, feed piping, and the classifier screw. The design provides for adequate detention time for optimum slaking efficiency.

Slakers and Slaker-Classifiers for lime are available in different sizes depending on the application and requirements. Slaker-Classifier combines the slaking action, classifying and grit removal in a single unit. The design provides adequate retention time for optimum slaking efficiency.The recommended Slaker Classifier combines the slaking action, classifying and grit removal in a single, rugged unit. An axial flow turbine in a baffled compartment is used for complete agitation. Better pumping action is achieved with a lower horsepower requirement.

A very versatile machine in Metallurgical, Chemical, and food processing flow sheets for high tonnage production at low operating cast.   The EIMCO-K.C.P.  Horizontal Vacuum Belt Filter has most of the operating capability of a bottom pickup vacuum filter… additionally, it has the operating flexibility to meet particular processing requirements some unique and exclusive capabilities – Simplicity of operation, and fluctuations, the ability to handle feed with low and high solids concentrations, and highly effective cake washing for increased product recoveries and profitability.   EIMCO-K.C.P.  offers the most reliable and efficient horizontal belt filters in the field. The designed system is applied for the separation of liquids and solids in various fields as listed below.   WIDEST APPLICATIONS IN THE FIELD OF:   Coal, Iron ore, Lead, Copper, zinc, Nickel, etc. Flue Gas Desulphurization, FGD washing of gypsum cake, Pyrite, Magnetite, Phosphate Rock, Chemical Processing.   COSTRUCTIONAL FEATURES AND BENEFITS   EIMCO-K.C.P.  filters are available from 5 sqm to 200 sqm with belt sizes range from 0.2 m wide to 4.2 m wide of belt width. The belts are imported as factory vulcanized (endless) from reputed suppliers from Europe. Rigid structural main frames and cross frames with higher load carrying capacity German Planetary drive with variable frequency speed drives, offering speed range up to 30 meters per minute. Head pulley and tail pulleys with rubber covered, grooved to provide prevention of belt slippage. Shaft ends with suitable material is offered according to the process. Standard pulley bearings from reputed makes of SKF / FAG for the pulleys and rollers. Belt support deck with air float as standard feature. Optional systems of roller design / slide rails are provided. Vacuum pans designed to provide high liquid handling with material suitable to process. For maintenance air operated lowering mechanism of pan is provided with ample space for wear belt change. In house Manufacturing capability with Assured quality, certified ISO 9001 company.   FEATURES OF EIMCO KCP HBF   Higher Filtration rates with minimum moisture content. Lower operating and maintenance costs due to efficient & sturdy design. Low friction advanced air box mother belt support system, Variants can be offered with slide rails or roller decks support system. Controlled belt aligning systems results in maintenance free running for a long time. Multi stage washing. Longer life of mother belt due to less friction of air box support. Drier filter cake output. As the length and process time of each belt filter is configured to suit the application for which it are intended, superior results can be achieved.   TESTING & SIZING TO ENSURE THE END RESULT   EIMCO-K.C.P.  with the expertise of more than 45 years of field experience offers accurate, reliable bench scale and pilot test works to make sure predictable behaviour of slurry in the field.

Horizontal Vacuum Belt Filter has most of the operating capability of a bottom pickup vacuum filter… additionally, it has the operating flexibility to meet particular processing requirements some unique and exclusive capabilities – Simplicity of operation, and fluctuations, the ability to handle feed with low and high solids concentrations, and highly effective cake washing for increased product recoveries and profitability.

EIMCO-K.C.P.  High volume Classifiers for treatment of industrial wastewater are designed to settle and dewater relatively coarse particles from high- volume, low-percent solid streams. They will make a separation of approximately 35 mesh at 5,000 GPM, and hydraulically transfer flow surges up to 10,000 GPM.   The unique construction of EIMCO-K.C.P.  Classifiers permits them to handle a greater volume of wastewater than can be accommodated by other waste treatment devices. The Classifier trough is inclined and flared at the lower end to provide a quite settling pool. A Conveying spiral is mounted within the trough to discharge settled materials above the level of the pool level. Removal of large, abrasive materials by the Classifier helps succeeding equipment perform better and last longer.   Design and Construction Features.   Low initial cost on operation and maintenance. Adjustable spiral speeds to meet most production demands. Anti-friction upper and lower bearings for longer service life. Replacement wearing shoes. Motorized, hydraulic spiral lifting devices for easy start-up after accidental or prolonged shutdown where heavy solids build-up may occur. Replaceable abrasion-resistant steel tank liner with bolted construction. Sectionalized steel flights. Tank is fabricated of heavy steel plate, rigidly braced. The drive is complete with totally enclosed, oil lubricated, shaft mounted reducer, V-Belt drive and belt guard.

THE EIMCO-K.C.P. LTD Solids Contact Reactor Clarifiers are basically divided into two different classes HRC and HRB mechanisms.   HRC is the high rate column supported Reactor Clarifier of size ranging from 15m to 75m diameters. HRB is a high rate bridge mounted Reactor Clarifier supplied in sizes ranging from 3m to 25m diameters.   The high rate Solids-Contact Reactor Clarifier operates with the raw influent liquid being brought into immediate contact with a large circulating volume of relatively dense previously formed flocculate and precipitate. The mixture of raw influent liquid and re circulated slurry is sent upward into the reaction cone with 75-90% being returned to recirculation with the incoming raw water. The remaining 10-25 % passes under the cone and into the clarification zone. Once in the clarification zone, the solids settle to the tank floor with the clarified liquid moving into the effluent launder and exiting tank   The BFR and CF Reactor Clarifiers are applied to processes where longer detention times within the feed well and no solids recycle are necessary or requested by customer. The detention times are considerably longer than those offered by higher rate solids-contact units and are necessary for proper flocculation.

The EIMCO-K.C.P Grit Separator is recommended for general application on all sizes ranging up to 60 foot square. Sewage enters uniformly through adjustable deflectors along one side of the square tank and after depositing its grit overflows a weir at the opposite side, substantially free of grit.   Purpose    : The Purpose of the EIMCO KCP Grit Removal scheme entails the following goals: Grit Removal      : Provide a flexible flow sheet to remove any desired mesh up to 1500 mesh grit so that protection of centrifuges and heat treatment equipment is possible. Grit Conveyance: Use a reliable and rugged means to convey grit from the grit chamber underflow to the grit dewatering and washing equipment Grit Dewatering : Provide a dewatering mechanism which is flexible with respect to desired meshseparation and operation location. Grit Incineration:Design a system that will provide grit incineration and ultimate disposal of a nuisance.

EIMCO-K.C.P. continuous vacuum drum filters are designed to handle the broadest range of slurries of any filter. This permit drum filters to be used in a variety of applications. Vacuum filters allow a more complete separation of solids from liquids than other mechanical dewatering filters. Vacuum filters are not as dependent on specific gravity differentials for the degree of clarity, nor are they subject to upset due to variation in the process. EIMCO-K.C.P drum filters provide high filtration rates and have excellent washing characteristics. Wide variations are possible in cycle time to ensure optimum cake formation, dewatering and washing on any application flow sheet. EIMCO-K.C.P. drum filters are ideally suited for filtering solids when cake washing is necessary when a uniform deposit of cake on the media is desired, or when the cake is difficult to discharge.

THICKENER / CLARIFIER DRIVE HEADS   The drive head is the heart of the Thickener & Clarifier mechanism. The present design of The EIMCO-K.C.P. Drive heads is a result of careful study and experience gained over 45 years of operation in the Sedimentation equipments operating in various Mineral Industries, Chemical Industries, Water Treatment Plants, Sewage and Effluent Treatment Plants under severe operating conditions.     A Sedimentation drive generally operates at a relatively low value of output torque in a well-operated installation. As long as the solids input equals the solids output from the mechanism, torque will begin to climb and the alarm on the drive control will actuate to warm the operator to take corrective action.     Three types of drives are generally used for Clarifier and Thickener Mechanism. “W” Series / “B” Series / “C” Series   The drive head torques up to 4,600,000 ftlbs.     Hydraulic Drive Heads   The EIMCO-K.C.P.  Hydraulic Drive includes drive unit with bull gear and pinion driven by planetary gear system intern by a hydraulic motor, by a hydraulic power pack. Also the unit includes a torque transducer to activate the overload alarm and to produce an output signal. Automatic rake lifting arrangement and drive tripping arrangement is provided in order to protect the mechanism from overloading. The drive is mounted on a lift plate and provided with hydraulic lift arrangement with cylinders. Drive Heads with duty rated torque up to 4,600,000 ft-lb’s and peak torque rating up to 13,800,000 ft-lb’s using High Precision Ring Gears are standard on large EKCP Thickeners Increased torque capacity. Reliable and adjustable torque sensing. Hydraulic drive heads are offered for both ‘B’ Type and ‘C’ Type Thickeners.

We offer Auto and Manual Dosing Systems for dosing coagulants like Lime, Ferrous Sulphate, Polyelectrolyte, Alum and Acids etc. Dosing systems are compact and rugged, engineered to handle and work efficiently under highly corrosive and varying conditions.   The dosing of water treatment chemicals needs to be precise if effective control of water treatment parameters is to be achieved. We have considerable experience in the selection of suitable dosing equipment. Years of water treatment experience means we can advise our customers on chemical dosing and help our customers ensure that their water treatment regime is operating as efficiently as possible.

AGIDISC FILTERS   EIMCO-K.C.P. Agidisc Filter is a vertical leaf rotary vacuum filter particularly adapted to filtration of rapid settling solids. It is widely used in dewatering metallurgical slurries of all types, including coal. A horizontal paddle agitator effectively maintains solids in suspension and prevents uneven cake formation.   rimary application is in the dewatering phase of the flow sheet.   Most advantageous applications are dewatering of solids which are free settling and from into an easily discharged, non blinding cake. Maximum filtration area is provided at minimum cost and operating space. Due to its design, utilizing a filtering surface in a vertical plane, washing of the filter cake is very limited. Guided scraper provides for discharge of thin cakes, reduces wear on media. Wide variety of media – stainless steel screens, cloth and synthetic fabrics are available. Filtering areas range from 2 to 300 m2.

EKDS Pumps sturdy construction guarantees it will pump sludge and scum that no other unit can handle and will efficiently transfer anything that moves through a pipe. The EKDS Pump can be automated to meet capacity and process requirements for maximum process efficiency. The EKDS Pump’s construction allows it to be operated dry indefinitely. It cannot air bind, has no stator to burn out, and no seal to fail. The EKDS Pump is adjustable while in operation for maximum flexibility of both the capacity and discharge pressures. The EKDS Pump is a low maintenance pump.

EIMCO-K.C.P. solvent oil Dewaxing and Deoiling filters are designed for the safe, high capacity removal of wax from lubricating oils at low operating temperatures. Totally enclosed and sealed construction, Positive seal of the valve, rigid support construction of the tank, screen support deck construction and spring mounted Teflon scraper which maintains preset position and is not affected by temperature variations are major features. These units can be instrumented and automated for continuous processing.

Peripheral drive clariflocculator with turbine   The equipment consists of a flocculation zone, inside the cone, a clarification zone, outside the cone, a sedimentation zone at the tank bottom, bottom scrapers to convey the settled sludge to the central drain well, radial ditches to collect the clarified water   The sedimented sludge flocs are kept in suspension by a turbine, recycled and mixed with the water to be treated. The solids in the incoming water settle over the existing recycled sludge flocs. The new flocs volume increases and they tend to sediment more easily   Peripheral drive clariflocculator with Individual mixers   The equipment consists of a flocculation zone, inside the cone, a clarification zone, outside the cone, a sedimentation zone at the tank bottom; bottom scrapers to convey the settled sludge to the central drain well, radial ditches to collect the clarified water.   The sedimented sludge flocs are mixed with the water to be treated by the gate mixers. The solids in the incoming water are mixed with the settled sludge flocs. The new flocs volume increases and they tend to sediment more easily.

EIMCO-K.C.P.Circular Clarifier are the most common type of sedimentation basin used for separating suspended solids from liquids in the treatment of water, sewage, Industrial waste and industrial process.   EIMCO-K.C.P. Offers Bridge mounted (B) type, Column Mounted (C) Type and Traction driven (T) type Classifiers mechanism for various applications. These operate on the common principle of moving settled solids to the center of principle of moving settled solids to the centre of the tank for removal, and differ principally in the method used to support and drive the rotating sludge removal arms.   EIMCO-K.C.P. Classifiers are designed to handle variety of applications & flows and clarifier includes scum skimming device to remove the floating material.   Primary Clarifiers. Secondary Clarifiers. Brine Clarifiers for Caustic Soda Industries. FGD Reactor Clarifiers. White Liquid Clarifiers & Green Liquor Clarifiers for Pulp & Paper Industries. Lamella Clarifiers.

EIMCO-K.C.P. Cane Mud Filters are designed to increase the capacity of acne mud filtering station and at all same time, ensure maximum recovery of sucrose by washing. It incorporates a number of design modifications aimed at making cane sugar operations more profitable. The filter valve with streamlined passages and a system to sweep moisture from piping with air, results in the highest operating efficiency.   The streamlined piping arrangement eliminates all sharp turns in piping. Cake washing is accomplished by spray nozzles spaced evenly for minimum wash water consumption. The scraper blade and slurry level can be adjusted to get the best operation. Maintenance advantages include easily removable filter screens and automatic lubrication.   Every detail of the filter design and construction has been engineered to minimize operating cost for processors of cane sugar.

ONATE FILTERS   Eimco-K.C.P. Sodium Bicarbonate Filters are used in the production of SODA ASH to dewater to as low as possible moisture content of a sodium bicarbonate filter cake and to wash the cake free of ammonium chloride. These filters are typical of the specialized fields for which Eimco-K.C.P.  can custom design equipment. These filter feature:   Special heavy-duty construction throughout. Special back-wash feature to prevent blinding of filter media. Special wash system to provide uniform wash-water distribution. Special streamlined drainage construction with extra large valve to insure maximum removal of wash liquor and low cake moisture. Additional cake compression in the removal of moisture from cake.

Fixed and Floating types / Low Speed & High Speed.   The EIMCO-K.C.P Fixed and floating mechanical surface aerators are available for any industrial waste treatment application.   The EIMCO -K.C.P Aerator is a highly efficient mechanical surface aerator for transferring oxygen from the atmosphere into wastewater. At the same time it provides vigorous agitation and mixing in the water to disperse the oxygen and keep solids in suspension.   Oxygen transfer capacity of the aerator is high, ranging from 1.4 – 1.8 kg per impeller BHP hour, depending on the site conditions.  High bottom velocities are also maintained.