Wafangdian Yongning Grate Manufacturing Co., Ltd.

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Reciprocating grate combustion characteristics

Release Time:

Sep 18,2020

Description: The combustion situation of the reciprocating grate is similar to that of the chain grate, also using segmented air supply and appropriately adding secondary air. The combustion process is also sectional. Coal descends from the coal hopper and slowly moves from the upper front to the lower back along the inclined grate surface, with air supplied from below to above. The heat required for the coal to ignite mainly comes from the furnace, going through various stages such as drying, drying out, volatile ignition, coke combustion, and ash burnout, all of which are the same as those of the chain grate.

 

   The combustion situation of the reciprocating grate is similar to that of the chain grate, also using segmented air supply and appropriately adding secondary air. The combustion process is also sectional. Coal descends from the coal hopper.,Slowly moves along the inclined grate surface from the front upper direction to the back lower direction.,Air is supplied from below to above. The heat required for coal ignition mainly comes from the furnace, going through various stages such as drying, drying out, volatile ignition, coke combustion, and ash burnout.,All are the same as the chain grate.

   A major feature that distinguishes the inclined reciprocating grate from the chain grate is the relative movement between the grate and the coal. When the moving grate pushes backward, some new coal is pushed into the upper part of the already burning coal. When the moving grate returns forward, it brings back a portion of the already burning coal to the bottom of the unburned coal, heating the new coal. This ignition condition is similar to that of hand-fired furnaces and is superior to chain furnaces. During the pushing process, the coal is continuously compressed, thereby breaking the coke blocks and ash shells. At the same time, the coal slowly rolls, allowing the coal layer to become loose and flat, which is beneficial for combustion.

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