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County Production 10 Tons of Pulverized Coal Preparation Project(Shaanxi Fugu CHINA))
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County Production 10 Tons of Pulverized Coal Preparation Project(Shaanxi Fugu CHINA))

Views: 5987     Author: Site Editor     Publish Time: 2013-07-05      Origin: Site

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I. Project overview


Date of signing: 2013-07-05


Processing material: Coal


Processing capacity: 10t/h


Equipment configuration: 24475 air sweep coal mill, MD500 powder separator, PPW700 dust collector, screw conveyor, fan, bucket elevator, gas and coal powder mixing burner, hot blast furnace system


In July 2013, the 10 tons of pulverized coal preparation project of Shaanxi Fugu County purchased a batch of pulverized coal preparation equipment from our company, including 24475 wind-swept coal mill, MD500 powder separator, PPW700 dust collector, screw conveyor, fan, bucket elevator, coal gas mixing burner, hot blast furnace system.


II. Solution


Raw coal storage and transportation system


1. The raw coal with particle size < 35mm and water content < 15% is transported to the raw coal shed by the dump truck, the raw coal stored in the coal shed is loaded into the coal hopper by the loader, and the raw coal in the coal hopper is uniformly fed to the bucket elevator by the speed feeding belt machine, and the raw coal is discharged after the elevator is lifted to the required height, and enters the pulverizing system through the double lock air valve.


2. A bar valve is arranged between the receiving hopper and the vibrating feeder. The bar valve can be closed during the maintenance of the speed feeding belt conveyor, which is conducive to the maintenance operation. Speed feeding belt machine can realize speed control function, which is conducive to generating operation and management. The adjustable speed feeding belt is equipped with an iron remover, which can remove the mixed iron filings in the raw coal and avoid the threat of iron filings to the system.


Pulverizing system


1, raw coal storage and transportation system of raw coal into the wind-swept coal mill, after grinding, coal and 200℃ ~ 350℃ hot air heat transfer medium, water evaporation into the flue gas, coal powder by hot air drying, and then, coal powder with the air into the separator sorting, the selected coarse powder back to the mill grinding, fine powder continues to flow through the coal duct into the powder collection system.


2, air sweep coal mill hot air inlet pipe and coal air outlet pipe are set with explosion valve and nitrogen protection interface, to protect the safety of equipment and system. By adjusting the frequency converter, the fineness of the powder can be controlled remotely.


Powder collection system


The qualified fineness of the pulverized coal discharged by the separator enters the explosion-proof bag dust collector through the coal air pipe under the negative pressure of the induced draft fan after the explosion-proof bag dust collector. After being filtered by the filter bag inside the dust collector, the pulverized coal is captured and falls into the coal dust hopper at the lower part of the dust collector. The flue gas filtered and purified by the dust collector is discharged to the atmosphere by the induced draft fan through the chimney. The pulverized coal stored in the pulverized coal bucket is discharged into the bucket elevator by the star discharger and the screw conveyor, and then lifted to the top of the pulverized coal bin by the bucket elevator.


III. Project site

陕西府谷县时产10吨煤粉制备项目陕西府谷县时产5吨煤粉制备站项目1


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