ROTARY SCOOP TYPE SAMPLER

ROTARY SCOOP TYPE SAMPLER

The EASTMAN “belt-top” rotary scoop type cutter sampler is designed for extracting representative samples directly from Bulk materials carried on a conveyor belt. Extraction takes place during driving the cutter through an circular path above the belt. Circular path is maintained by five Roll idlers installed on each side of the cutter to establish belt contours at the sampling position. Sampling method satisfies IS, ISO, ASTM, BIS, JIS, DIN, GOST and other standard.

 

The cutter rotates over the belt for extracting sample from running conveyor of the complete sampling cycle. The cutter is stopped by a brake when it passes the belt edge, where sample discharges from the cutter into a collection chute positioned at the stop point. Skirts provided on the either side of the cutter prevent entry of scattered material into the chute.

 

Cutter velocity of the sampler as per ASTM/ISO to enables efficient sampling of moist materials with tendency for build-up and adherence to metal surfaces. Cutter discharge is enhanced by momentum and brake action at completion of the sampling cycle. Advantages of the mechanism also include simplified installation requirements and relatively lower quantity of sample volume per increment by comparison to conveyor discharge trajectory sampling.

 

The cutter is provided with adjustable and replaceable lip and wiper of abrasion resistant plastic plate (polyurethane or/HDPE equal) to avoid possible belt damage in the event of belt contact with the cutter while maintaining close clearance between cutter and belt. A wiper device is provided to recover residual fines at the belt surface with the extracted solids.

 

Cutter opening is recommended as equal to three times of nominal particle top-size, and cutter volume suitable to take sample extract quantity.

 

COMPACT DESIGN FOR DRIVE SYSTEM:-

 

Geared brake Motor drive is connected to the cutter shaft through Hollow Shaft of Geared motor with pummer block, bearings.

 

Auto-manual control system both through relay logic and PLC are available with necessary interlocking with conveyor drive, cutter position detection and also with weigh meter as per requirement.

 

DESIGN FEATURES:-

 

·      To meets ASTM D 2234 / ISO / IS specification for bulk material sampling.

·      Design to easy installation.

·      Compact Drive System to reduce space requirement direct drive there is no chain or belt.

·      Five Roll Idler to maintain the curvature to meet cutter radius.

·      Heavy Duty construction.

·      Sample upto 400 mm. coal and other bulk material.

·      Wiper and Lip Touch belt to get a complete sample including fines.

·      Skirt prevents the spillage of material during sampling.

·      Cutter does not touch and damage conveyor belt.

·      Low maintenance.

·      Low cost design.

·      Inclined and horizontal applications.

·      Heavy duty switch.

·      Quality of sample reduces through conveyor trajectory sampling from conveyor discharge end.

 

 

CONTROL SYSTEM:-

 

"EASTMAN" Control System are available to suit the any sampling control application. The standard unit of control system are application for manual and auto mode for operation. Control and timing and sampling operation adjustable as per customer requirement.  Control system can handle a wide variety of voltage and frequencies and design for enclosure Class IP-55 / 65 or as per customer requirement.

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