广州力晖环保科技有限公司

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Security Configuration of Dedusting System

 

 

 

 

一、The deduster is running in negative pressure type,which is located at the air intake of draught fan.
       Function:negative pressure explosion suppre-sion can reduce damage to avoid the fan wear and produce fire and make the negative pressure fan with high efficiency.


二、The preventing deduster soot formation configu-ration uses pulse blowing ash,of which the ash hopper taper is greater than that of angle of repose.
       Function : reducing dust storing up.


三、The preventing deduster soot formation configu-ration,setting locking air supply valve and packing auger discharging device,moving and running with the draught fan.Ash discharge capacity should be carried on the design to meet:ash discharge valve supply ability>ground dragon ash discharge ability ( no model for small packing auger )>producing dust capacity.
       Function:discharge the dust in a timely manner.


四、The preventing dust deposited duct configura-tion,setting duct automatic slag discharge valve.
       Function:By using the theory of short circuit,it can get big air volume and high wind speed,clean the pipe dust,and achieve the automatic soot cleaning function,guaranteeing the normal operation of the system.At ordinary time,it is closed when it is power-off,it is automatically opened one by one for a certain time,to clear away the dust in the pipeline.


五、 Anti-static configurations adopt the antistatic filter bag.
       Function:channel static electricity in time,to avoid producing fire.


六、Explosion pressure configuration uses the deduster explosion venting window and blast pipe explosion venting window,and rupture disk.
       Function:explosion-proof pressure,protecting device.The explosion venting windows cannot over against the plant,but against the exterior or above the plant.Pressure relief area is calculat-ed according to the Dust Explosion Pressure Relief guide GB/T 15605-2008

 

Explosion piece (rupture disk) parameters:
Type:PFTA type (square rupture disk),
Materials:SS/TFE/SS
The maximum explosion pressure Pred,max=0.02MPa,
Static opening pressure Pstar=0.01,MPa,
Operating temperature:-40~204℃,
Warranty period:2 years.


七、Set transparent windows on the ash hose of dedust-er ash bucket.
       Function:Facilitate personnel observe ash hopper,and the condition of the air inside the air duct,ash deposition,etc.


八、The fire extinguishing configuration use the duct sparks detection and extinguishing system and dust catcher fire tube system.
       Function:Detect sparks,extinguish the fire seat.


九、On-line detection configuration , in view of the key link , uses the online test configuration,recording the fault.
       Function:Real-time online motor the using conditions and state,when in malfunction alarming in time.
       1、Ash valves(packing auger) locked-rotor detection;2、Cloth bag differential pressure detection; 3、Blowing slag discharge pressure detection;
       4、Temperature detection of deduster;;5、air speed detection of in and out air hose;6、Ash bin material level detection.

 

 


十、Perfect the safety sig,security risk notifying,in strict accordance with the requirements for use and maintenance.