Coal Carbon Ore Belt Center Automatic Sampler

• Customization: Available
• Type: Full Section Rotary Sampling
• Voltage: 440V 380V 220V
• Model NO.: DSCY
• Weight: <1T
• Material: Carbon Steel Stainless Steel
• Material Feature: Corrosion Resistance
• Certification: ISO9001:2008
• Energy Saving: Energy Saving
• Warranty: 1 Year
• Color: Selectable
• Customized: Customized
• Condition: New
• After-sales Service: Instruction in Installation and Commissioning
• Control Method: Manual/Automatic
• Control Cabinet Material: Stainless Steels
• Applicable Belt Width: 500mm-2000mm
• Driving Method: Motor Reducer
• Rotary Sampling Hopper Material: Stainless Steels
• Transport Package: Crate
• Trademark: RAMSEY
• Origin: China
• Production Capacity: 1000

Product Description

1.1 Working Principle
When a sampling cycle starts, the gear motor drives the cutter to rotate rapidly, close to the belt to carry out full cross-section scraping sampling of the material flow, and unload the sample into the chute.
When the cutter crosses the belt, the electrical switch operates, the electromagnetic brake of the motor works and applies the brake, and the cutter stops at the starting position of the next cycle (usually set at about ten o'clock position).
The cutter does not contact the belt during rotation and does not contact the material flow after returning to the starting position.
The cutter rotates for only about 1 second and contacts the material flow for about 0.2-0.3 seconds, so it does not affect the operation of the main belt.
1.2 Structural composition
Scraper sampler mainly consists of sampling machine body and electrical control system.
1.2.1 Sampling machine body
The sampler body includes the frame, shroud, cutter assembly, coupling and drive unit (machine), etc., see the figure below
1.2.1.1Frames and shrouds
The frame is made of welded steel, featuring simple structure, large load capacity, good rigidity and stability.
The shroud mainly includes front shroud, rear shroud, sample chute, material guide chute, etc. The front shroud, rear shroud and sample chute are fixed on the frame. The front shroud, rear shroud and sample chute are fixed on the frame, and each shroud is equipped with observation door.
The guide chute is divided into two parts, respectively fixed on the frame. Sealant strip is configured throughout the whole process between the guide chute and the upper surface of the tape to prevent the material from overflowing, and at the same time, it can limit the up and down fluttering of the tape and prevent the tape from being scratched when the cutter is rotating.                              Scraper Sampler Outline Drawing
1.2.1.2Cutter Assembly
The cutter assembly is the main part of the scraper sampler, which consists of spindle, cutting head, and counterweight.
The opening of the cutter is usually 2.5~3 times of the rated maximum material size, and the cutting head is made of stainless steel, which can effectively prevent cross contamination of samples. The bottom of the cutting head is equipped with a non-metallic scraper, which will not damage the belt when cutting the material flow.
The cutter is leveled by the counterweight block according to the principle of torque balance.
The main shaft is equipped with self-aligning bearings on both sides, which are connected with the gear motor through the coupling.
1.2.1.3Driving device and coupling
The drive adopts a reducer and motor integrated machine, which has the advantages of occupying small space, easy installation and maintenance.
Usually, the drive and the cutter are connected by a serpentine spring coupling. The serpentine spring coupling has the performance of transmitting large power, compensating the relative offset of two axes, damping and buffering.
1.2.2Electrical control system
The electrical control system includes the driving device (electric), detection device, junction box, operation box (cabinet) and cables.
1.2.2.1The detection device consists of a proximity switch, a signal board, a bracket and a guard for the positioning of the cutter. A signal is sent from the detection switch and the motor electromagnetic brake applies a brake to ensure that the cutter stops at the set position. If the position is not suitable, the angle of the signal plate can be adjusted. And the sensing distance between the proximity switch and the signal plate should not exceed 5mm.