2013年8月30日星期五

Screw in the NID dry desulfurization system application

Dust on the distribution NID desulfurization system , usually electrostatic precipitator hopper bottom ash hopper designed to be boat , bottom ash hopper will connect 550-800mm

wide fluidized chute . The role of the fluidizing chute is in the flow of air under the action of the chute to the desulfurization transport fluidization bottom ash

Position , which is usually less than 10 degrees inclination . However, in the last ESP field , if the chute or the use of fluidized , then it is inevitable there will be a

small amount of fine dust raised by the wind streaming from the electrostatic precipitator outlet horn escape and, thus resulting in dust emissions exceeded.

So, finally a farm hopper ash gravity skatewheel conveyor design is mostly used .
Because circulating ash agglomeration and caking easily hardness after bigger, so will the spiral blade is designed for intermittent blade . Such rotation of the spiral blade is

not just a transport function , as well as for cutting the material caking crushing functions. If it is a material accumulation occurs elbow , can also be employed

Cleaning artificial way , used to extend the operating life of the spiral . NID reactor bottom roller conveyor , which is usually designed transport capacity of 10m3 / h,

diameter 400mm, spindle speed 30rpm.
NID dry desulfurization sorbent system is quicklime , which requires particle size ≤ 3mm. In fact, generally made ​​of limestone blocks burned lime , it was time to go through

two grinding process , it will become a particle size of several tens or even hundreds of microns, quicklime powder , and more

Plus the convenience of transportation and storage. Quicklime quicklime position is temporary storage device , the volume of the system generally designed to accommodate the

amount of lime used 3-10 days , but also the body close to the device as possible , thus reducing transport distances.

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