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Dengta Huatao Mining Co., Ltd.

Contact: Manager Zhang

Mobile: 13941993697

Contact: Manager Zhu

Mobile: 13841904588

Website: www.dthtky.com

Website: en.dthtky.cn

Address: Shanggangyao Village, Xidayao Town, Dengta City, Liaoning Province


Quick lime

Quick lime

  • category:Active lime
  • Views:Times
  • Release date:2020-03-17 14:00:33
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Quick lime

(1) Except for grinding anthracite and semi-anthracite, when the coal mill system is operated under negative pressure, anti-riot valves should be installed. Device location: Active lime manufacturer


Activated limestone production line


Activated limestone production line


①The mill inlet and outlet pipes. The cross section of the riot valve is not less than 70% of the cross-sectional area of the pipeline;


② The top cover of the coarse powder separator shall be equipped with two anti-riot valves; the total cross-sectional area value of the coarse powder separator riot valve shall not be less than 4% of the volume value of the coarse powder separator.


(2) If the anti-riot valve of the dynamic separator is installed on the central short tube of the dynamic separator, its cross-sectional area shall not be less than 40% of the cross-sectional area of the short tube. At least two anti-riot valves should be installed on the top cover of the dynamic separator. The total area value shall be not less than 5% of the volume value of the dynamic separator.


(3) The area value of the pulverized coal bin riot valve should be equivalent to 0.01 square meters per cubic meter of pulverized coal bin volume value, and should not be greater than 0.5 square meters.


(4) On the inlet and outlet pipes of the dynamic separator and on the pipes in front of the exhaust fan or primary air blower, the cross-sectional area of the riot valve is generally not less than 70% of the cross-sectional area of the pipe.


(5) Install the anti-riot valve so that the anti-riot valve faces the direction of an open, non-operator position. The riot valve outside should face up.


(6) The anti-riot valve can be installed on the vertical pipeline above the air inlet of the mill, the dynamic separator and the pulverized coal silo. In the event of an explosion, the generated gas can be sent out through a vertical pipe. When it is difficult to arrange the pipeline, the inclined pipe may be allowed, but the inclined angle with the vertical direction shall not be greater than 50 degrees. The angle between the anti-riot valve installed outdoors and the horizontal plane shall not be less than 45 degrees.


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