YOKOI KIKAI KOSAKUSHO HOPE CRU-10, Manual

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HG0T063E

HOPE

C R U

CRUCIBLE SELF REGENERATIVE

GAS BURNER

HANDLING MANURLS

YOKOI KIKAI KOSAKUSHO CO., LTD.

Head Office:

2720-1, Oboraguchi, Nakashidami, Moriyama-ku

Nagoya 463, Japan

Tel: +81-52-736-0773 Fax: +81-52-736-0

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Summary of Contents for HOPE CRU-10

Page 1: ...63E HOPE C R U CRUCIBLE SELF REGENERATIVE GAS BURNER HANDLING MANURLS YOKOI KIKAI KOSAKUSHO CO LTD Head Office 2720 1 Oboraguchi Nakashidami Moriyama ku Nagoya 463 Japan Tel 81 52 736 0773 Fax 81 52 7...

Page 2: ...witch 4 5 Pressure Switch for Assist Air 5 6 Installation 6 7 Piping Monitoring of Main Flame 7 8 Operation Timing of the Valve 8 9 Flow sheet 9 10 Test Operation 10 11 Inspection Precautions 11 12 Re...

Page 3: ...e crucible directly the life of the crucible is extended and the temperature distribution is improved Although this burner was developed for crucibles it can be also applicable to other crucible shape...

Page 4: ...ure Main air pressure 4kPa CRU 10 5kPa CRU 20 Gas pressure 10kPa Pilot Gas pressure 6kPa Air pressure for driving the actuator 0 3MPa Assist Air 0 1MPa Weight Type Burner Mass kg Ceramics Ball Masskg...

Page 5: ...Electrical entry With indicator light 2 wire 24V 12V Solid State Auto Switch Grommet Indicator light Wiring type Load voltage DC AC D M9BW Relay PLC Auto switch model Applicable load The auto switch...

Page 6: ...5 Pressure switch for assist air Set the pressure switch by using the following method so that it can be ON when assist air is supplied and OFF when assist air is not supplied...

Page 7: ...ortion of the outer surface with fire brick castable refractory or the like to prevent the burner tile from dropping When mounting the burner to the furnace body fill the gap between the mounting port...

Page 8: ...driving the actuator and assist air the selector valve Since high temperature gas containing a large amount of moisture passes through the exhaust side piping it is advisable to take countermeasures a...

Page 9: ...ely or reversely OFF and ON respectively However at the time of temperature control this turning ON OFF is not simultaneous for these two valves 3 port valve for assist air Turn ON OFF this valve at e...

Page 10: ...e time of temperature control gas OFF operate the intake valve alone in reverse to the exhaust valve and the 3 port valve Set the intake valve OFF ON when the exhaust valve and the 3 port valve are ON...

Page 11: ...10 Flow sheet...

Page 12: ...valve After the ignition is achieved calculate the gas flow rate from the air flow rate to make the excess air ratio to 1 1 obtain the differential pressure of the orifice flow meter and set the gas...

Page 13: ...ramic balls of the heat storage body be sure to check the trap If a substantial crack or break is found since the ceramic balls may escape through the trap replace or repair the heat storage body If t...

Page 14: ...ix them with the crank bars and the tap bolts At this time do not forget about inserting the packing Open the upper lid in the same way Supply new balls from the lid Supply balls up to 10 to 12mm from...

Page 15: ...and the assist air nozzle These components come off upon the removal of the bolt from the pilot air body Take out the ceramic balls For the method of taking them out refer to Replacement of Ceramic Ba...

Page 16: ...acements as listed below It is recommended to make them ready as spare parts for use on site Ceramic Ball Selector Valve These are commonly used for both combustion air and exhaust Ignition Plug Packi...

Page 17: ...S YE S YE S Y ES Y ES Inspect the follow ing item s A re the ultravision frame rod and the protect relay are in normal operatio n Is there a heavy fluctuation in air pressure and gas pressure If ther...

Page 18: ...17 Structural drawing...

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