Combined fluidized bed slag cooling apparatus
A slag cooler and fluidized bed technology, which is applied in the field of cooling treatment of bottom slag of CFB boiler, can solve the problems such as the difficulty of perfecting the design structure of the air distribution device, the obstructed lateral movement, and the difficulty in slag discharge, so as to meet the requirements of continuous slag discharge and slag discharge. The effect of stable combustion conditions, simple gas-solid flow and mixing, and easy automatic control
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[0025] Such as figure 1 , 2 As shown, a combined fluidized bed slag cooler includes a body 6 , an air chamber 2 , an air distribution device 3 , a slag inlet pipe 4 , a slag discharge pipe 8 , an air inlet pipe 1 , and an air outlet pipe 7 . The body 6 is provided with a slag inlet pipe 4, and the bottom of the body 6 is connected to a slag discharge pipe 8; the lower part of the body 6 is provided with an air distribution device 3 and connected to the air chamber 2 with the air inlet pipe 1; the top of the body 6 is connected to an air pipe 7. In the slag discharge pipe 8, a spray pipe 9 for air intake is arranged.
[0026] Further, a guide pipe 5 is provided above the injection pipe 9 in the body 6 .
[0027] Furthermore, a mechanical slag discharge valve or a conveyor is installed at the outlet of the slag discharge pipe 8 . Conveyor can choose screw conveyor.
[0028] The upper part of the body 6 is a cylinder, and the lower part of the body 6 is a cone with a central ...
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