Ball Mills are horizontal rotating cylindrical steel chamber of half filled with steel balls. The size reduction is accomplished by the impact of balls as they fall back after being lifted by the baffles fitted in the rotating chamber.Ball Mill is fitted on a sturdy MS frame. Charging of balls and material is done by the means of opening provided in the chamber. The chamber is turning about the horizontal axis through a reduction gearbox drive through a ½ HP variable speed motor. Drive is provided to vary the RPM. A RPM indicator with proximity switch is provided in the set-up. A revolution counter is provided to find out the number of turns. Special arrangement is done to free the Ball Mill from reduction gearbox for charging and discharging the material.Experimentation:
The rotap sieve shaker reproduces the circular and tapping motion given to test sieves in hand sieving. The uniform, mechanical action ensures accurate and dependable test. Using the regular height 20-cm diameter sieves, one sample can be tested on a series of six sieves of different openings, all with one operation of machine. The Rotap Sieve Shaker is simple and durably constructed and is run by a FHP motor. The running parts operate in oil. The machine is easily installed. No special foundation is required. Test Sieves are supplied at extra cost. A time switch from 0 to 60 minutes is provided.
Gyratory type shaker is driven by FHP motor through a reduction gear suitable to carry upto 7 sieves of 15 cm or 20 cm diameter. When clamped the sieve table does not rotate but it is inclined from the vertical axis and the direction of inclination changes progressively in the clockwise direction. In addition to the gyratory motion of the Shaker, there is an upward and downward movement ensuring that each square inch of the sieve is utilised. The whole mechanism runs in an oil bath. Complete with
Adopter for 20-cm diameter sieves. Suitable for use from 220/230 volts 50 Hz. AC supply. Test Sieves will be supplied at an extra cost. A time switch from 0 to 60 minutes is provided.
Mixed liberated particles can be separated from each other by floatation if there is sufficient difference in their wet ability. The floatation process operates by preparing a water suspension of a mixture of relatively finely sized solids. This is usually done in an agitated chamber open at the top. Fine bubbles of air are then dispersed through the agitated suspension to form a froth that rises to the top of the chamber. Particles that are radically wetted by water (hydrophilic) tend to remain in the water suspension. Those particles that are not easily wetted (hydrophobic) tend to be collected at the air bubble-water interface and rise to the surface attached to air bubbles. Thus differences in the surface chemical properties of the solids are the basis for separation. The set up consists of a agitated chamber open at the top. In the chamber, an impeller coupled to a shaft is fixed in a stationary diffuser. Low-pressure air is allowed to enter in the stationary diffuser through the air passage provided with the agitator. The collector coated mineral particles adhere to the rising bubbles and are carried to the top of the cell to be removed in the froth product.
Scope of Delivery:
Pressure filters can apply a large pressure differential across the septum to give economically rapid filtration with viscous liquids or fine solids. The most common types of pressure filters are filter press. A filter press contains a set of plates designed to provide a series of chambers or compartments in which solids may collect. The plates are covered with a filter medium such as canvas cloth. Slurry is admitted to each compartment under pressure; liquor passes through the canvas cloth and out a discharge pipe, leaving a wet cake of solids behind. Plates and frames sit horizontally in a metal rack, with cloth covering the face of each plate, and are squeezed tightly together by a screw. Slurry enters at one end of the assembly of plates and frame. It passes through a channel running lengthwise through one corner of assembly. The set up consists of 7 plates and 6 frames. Frames are covered with filter cloth. Feed is fed by gear pump at the top and filtrate collected at the bottom from each plate by operating the cock.After removing Cake, washing and cleaning can be done by water provided by overhead tank.
Ø To study the operation of filter press in the laboratory.
Ø To evaluate specific cake resistance and medium resistance.
Ø Electric Supply: Single phase, 220 V AC, 1.5 kW.
Ø Water supply.
Ø Slurry required to performing experiment.
Ø No. of frame : 6
Ø No. of Plates : 7
Ø Size: 200 mm x 200 mm.
Ø Material : Acrylic
Ø Screw Jack arrangement for tightening and removing of frames easily.
Ø Filter Medium : Filter Cloth
Ø Filtrate collection tray: Material Stainless Steel, Suitable size.
Ø Slurry Feed tank : Material Stainless Steel, Capacity 40 Ltrs.
Ø Slurry Tank Agitator : Stainless Steel Impeller with SS Shaft coupled to
Ø FHP Motor and Reduction Gear Box
Ø Slurry Feed Pump : Gear Pump with FHP motor.
Ø Piping system: GI and PVC.
Ø Filtration rate measurement: Using measuring tank. Material Stainless Steel Pressure Measurement: Bourdon type pressure gauge.
Ø Overhead water tank: Material Stainless Steel, Capacity 25 Ltrs.
Ø Control panel Comprises of Standard make On/Off switch, Mains Indicator etc.
Ø Instruction Manual : An ENGLISH instruction manual will be provided along with the Apparatus
Ø A good quality painted rigid MS Structure is provided to support all the parts
Bucket elevators are used when the only direction of travel is vertical. There could be three type of bucket conveyors; centrifugal discharge, positive discharge, continuous discharge bucket conveyor. The present set-up is a centrifugal discharge bucket conveyor in which buckets are suitably spaced on a belt, which is driven with sufficient speed to discharge the bucket over the head wheel by the centrifugal force. It may be used for almost any, material that is discharged freely from the buckets. High capacity is obtained by large numbers of buckets and not by speed. The equipment is of Lab. Size with small buckets. The drive is given through a reduction gear box coupled to a motor. Collecting bin and feed box is provided with the equipment. It demonstrates the working of bucket conveyor as used in the industries.Experimentation: