Pulverized coal drying furnace based on drying of packed bed and drying apparatus and process based on drying furnace
A technology of packed bed and drying furnace, applied in the field of drying device and pulverized coal drying furnace, can solve the problems of high energy consumption and large waste water output, and achieve the effects of high heat transfer efficiency, improved water carrying capacity, and simple process.
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Embodiment 1
[0095] Raw coal S1 with a particle size of 0-30 mm and a moisture content of 12.5%wt taken from Shenmu Xigou enters the raw coal bunker 1 through the coal drop port 11 at the top of the raw coal bunker 1. During this process, the internal components arranged inside 12 The function is to make the raw coal S1 evenly loaded into the raw coal bunker 1, and the raw coal S1 enters the drying box 2 through the bundle hopper 13 at the bottom of the raw coal bunker 1 and the drop pipe 14. The temperature outside the device is 265° C., the pressure is 2.2 KPa, and the heat carrier gas S2 with a relative humidity of 13% enters the heat carrier gas distribution main pipe 22 from the heat carrier gas inlet 21 . The raw coal S1 entering the drying box 2 slides into the packed bed in the middle part D2 of the drying box along both sides of the pipe wall of the heat carrier gas distribution main pipe 22. The discharge pipe 3 moves down continuously and slowly. The gas distribution hood 24 an...
Embodiment 2
[0097]Raw coal S1 with a particle size of 0-30mm and a moisture content of 13%wt from Shenmu Sunjiacha enters the raw coal bunker 1 through the coal drop port 11 at the top of the raw coal bunker 1. The component 12 acts to make the raw coal S1 evenly loaded into the raw coal bunker 1 , and the raw coal S1 enters the drying box 2 through the bundle hopper 13 at the bottom of the coal raw material bunker 1 and the drop pipe 14 . The temperature outside the device is 265°C, the pressure is 2.9KPa, and the heat carrier gas S2 with a relative humidity of 9% enters the gas distribution main pipe 22 from the heat carrier gas inlet 21 . The raw coal S1 entering the drying box 2 slides into the packed bed in the middle part D2 of the drying box along both sides of the pipe wall of the heat carrier gas distribution main pipe 22. The discharge pipe 3 moves down continuously and slowly. The gas distribution hood 24 and the gas collection hood 25 buried in the packed bed are distributed ...
Embodiment 3
[0099] Raw coal S1 with a particle size of 0-30mm and a moisture content of 14%wt taken from Shenmu red willow forest enters the raw coal bunker 1 through the coal drop port 11 at the top of the raw coal bunker 1. During this process, the internal components arranged inside 12 function to make the raw coal S1 evenly loaded into the raw coal bunker 1, and the raw coal S1 enters the drying box 2 through the bundle hopper 13 at the bottom of the coal raw material bunker 1 and the drop pipe 14. The temperature outside the device is 320° C., the pressure is 3.1 KPa, and the heat carrier gas S2 with a relative humidity of 10% enters the heat carrier gas distribution main pipe 22 from the heat carrier gas inlet 21 . The raw coal S1 entering the drying box 2 slides into the packed bed in the middle part D2 of the drying box along both sides of the pipe wall of the heat carrier gas distribution main pipe 22. The discharge pipe 3 moves down continuously and slowly. The gas distribution...
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Abstract
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