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CQMCoal Quality Manager

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CQM

Sample-fed analyzer with a capacity of 0 to 30-tph or 20 to 70-tph

Replaces the 1812C chute analyzer• Design of the analysis zone was optimized for coal

• Half the source strength of the 1812C with the same or better performance.• Material flow control designed into the unit• Smaller foot print

Moisture gauge is built into the unit The CQM is a stand-alone unit

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Thermo Scientific CQMPGNAA Coal Quality Manager

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CQM Drawing

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CQM between 2 Bunker Feed Conveyors

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CQM fed by 2-Stage Sampler

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Thermo CQM Cross Section

Cf-252 Neutron Source

Fission Gamma Ray Shield

Slider Plates Neutron Moderator / Reflector

Neutron Shield

NaI Crystal

Photo-multiplier Tube

ShieldingGamma Ray

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Microwave Moisture Meter

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CQM

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CQM installed at Loadout

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CQM at the pre-plant

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CQM built into tower at power plant

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CQM at Power Plant

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CQM in China

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CQM in China

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Simplistic CQM install for first 1.5 years

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Coal entering a CQM

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Coal exiting CQM

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CQM Electrical Specifications

Electronic enclosure NEMA 4X, stainless steel box

Motor control box NEMA 4X stainless steel

Power needs:

Electronics Enclosure 230VAC 50 or 60 Hz, 5 amps

Motor control box 460VAC 50 or 60 Hz, 10 amps or

230VAC 50 or 60 Hz, 20 amps

Operator console 120VAC 50 or 60 Hz, 5 amps or

230VAC 50 or 60 Hz, 2.5 amps

Communication links:

Electronics enclosure to Operator console

RS-422 twisted pair or

Fiber optic 6.25/125 multimode

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CQM and Sampling System Require Interfacing

Required signals from Sampler to CQM• Exit chute plugged (24 VDC dry contact)• Exit belt stopped (24 VDC dry contact)

Required signals from CQM to Sampling System• Analyzer Ready Signal (5-30VDC or 110VAC dry contact)• Input Hopper Overflow (5-30VDC or 110VAC dry contact)• CQM Motor on (5-30VDC or 110VAC dry contact)

• All field connections are laid out on page 9 and 10 of the CQM site prep document.

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CQM – Flow Control

The flow control through the CQM is controlled by our PLC

Coal enters our hopper from a sampling system

The coal level is read by a Ramsey level sensor

When the coal goes above the set point, the CQM belt will turn on, and control the level accordingly

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Analyzer Location Issues

CQM• Since it requires a sample stream, it’s preferred to integrate it with

an existing sampling system• Has to be somewhere where the topsize does not exceed 3 inches• Requires about 8-10 feet of vertical clearance• Need to allow for

• electronics doors opening • source cask placement nearby• Liner removal• Level sensor at top of input hopper

• Optimal flow is 3 tph to 15 tph• Would like sample increments no less often than every 2 minutes• Ideally want it as close as possible to the process being controlled