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Refining Tank by Electric Power
[Date£º2009-01-24 ] [Read£º479 Time]
Refining Tank by Electric Power
Ò»¡¢   Structure Chart
1¡¢windpipe                          2¡¢original pressure meter
3¡¢decompressing clique                4¡¢working pressure meter
5¡¢motor                             6¡¢flux
7¡¢shaving board                       8¡¢mixture room
9¡¢injection gun                        10¡¢melting metal
 
¶þ¡¢the Adjustment of Hydrogen Pressure and Refiner Fluid :
1¡¢ fix the baffle and material pushing board to a fixed value(it¡äs 5mm when leaving factory)
2¡¢ open the lid,add 6kg of the refiner(3bags)
3¡¢ cover the lid and screw down.
4¡¢ open the value of the low pressure meter,open the adjustment value,and open the
    hydrogen low-pressure meter.Turn on the adjustment value,make the pressuer meter
    which is connected with the tank pressure of 0.5Mpa,the hydrogen will be come out of
    the tank tube without let.
5¡¢ connect the power supply,the red light lights,turn on the switch,the green light lights.
6¡¢ put the tube of refining flux into the melt,the height of melt should be around 150mm.If
the height is too high,turn the adjustment valve to play down the pressure;if the height is
too low ,turn the adjustment to enhance the pressure.When the height is suitable,record
the figure of pressure meter.In the using process thereafter,the pressure meter which has
been connect with the tank has to be opened all the time,to adjust slightly.
7¡¢ To calculate the runoff of the flux by the time needed to inject the 6kg flux,to calculate the
    quantity needed by the aluminium inclusion in the furnace,and judge by the time to
    determine the suitable space between the baffle and the material pushing board.
8¡¢ screw off the four screws and plane the tank.Adjust the distance of the material pushing
    board and baffle,and record the distance,to install the tank again.
9¡¢ to weigh 6kg flux again,to inject the flux into the tank with the help of determined
pressure,and fix the distance for the next time using.
10¡¢Reference Figures:
Distancebetweenmaterialpushingboardandbaffle£¨mm£©RunoffHydrogen£¨kg/min£©Pressureinthetank£¨Mpa£©
                               8.0               2.0                0.26
                               6.0               1.5                0.26
Èý¡¢Operation
1¡¢  Open the lid of tank,to add in the proportion of 1.5kg/MTAl.To add the required flux into the tank.
2¡¢ Cover the lid and screw down.
3¡¢ Turn on the hydrogen,turn the adjust valve slightly to make it to the required value.
There should be hydrogen come out of the tube.
4¡¢ Connect the power supply,the red light lights,turn on the switch,the greenlight lights.
5¡¢ Put the tube of flux into the melt,to mix while injecting until they are totally spurt out,
cut down the power supply.
6¡¢ Continue to connect through the hydrogen for 1-2minutes,take out the refining tube,stop
supplying the hydrogen.
ËÄ¡¢ Remarks
1¡¢ Position the refiner and shorten thedistance with the furnace to reduce the loss.
2¡¢ Don¡ät move the refiner after put the flux into the tank,so that to avoid the jam-up.
3¡¢ When storing and using,avoid to bend the tube which will form the jam-up.
4¡¢ In the refining processing,it¡äs strictly forbidden the refining tuve touches the bottom
of furnace and the furnace wall which will also form the jam-up.
5¡¢ When the flux attempted with damp,the jam-up will come into being,dry and sift out
the flux before using.
6¡¢ Clean the refining tube before using to make sure the trbe is expedite.
Ò»¡¢Pre-hand:
1¡¢ Install the pressure meter(decompression),connect the pressure meter with the refiner by
the compression resistance tube.
2¡¢ Prepare a refining tube,length is about 3-6m,and diameter is 0.5-1minute.
¶þ¡¢machining:
1¡¢ Put the flux into the refiner and turn the lid tightly.
2¡¢ Open the pressure meter,when the hydrogen is sprayed out of the refining tube,control
the fluid to the determined position,to insert the tube into the melt when the flux is sprayed out of the tube.
3¡¢ When the refining is over,to put the refining tube out of the melt,put through the hydrogen
for 0.5-1minutes,turn off the gas switch.
Èý¡¢Remarks:
1¡¢ Put the flux into the material storing tank.
2¡¢ Turn on the switch of pressure meter first,when the gas is expedite turn on the fluid
controlling valve then.
3¡¢ The refining time is to be determined by the furnace,the shortest time is no less than 10
minutes.10-15minutes is quit common.During the time of refining,the flux should be injected into the melt totally,not too early,not too late.That requires to find the suitable opening position of the fluid controlling valve.
4¡¢  If you don¡ät use the refiner for a long time,the tank should be cleaned thoroughly,to screw
the cover tightly.
5¡¢  In noumal circumstances,the pressure should be 0.10-0.15Mpa,the highest shouldn¡ät be
0.25Mpa(to be determined by the depth of the liquid aluminium),stop working if the figure is abnormity,and find out the reason.
6¡¢ When refining,it¡äs strictly forbidden to make the refining tube connect the furnace which
will cause the jam-up.When stops,to turn off the valve of tank,then turn off the valve of gas.
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