Coal grinding device for efficient hot water boiler
A hot water boiler and coal grinding technology, applied in grain processing, etc., can solve the problems of low coal grinding efficiency, poor coal grinding fineness, and large equipment volume, and achieve high coal grinding efficiency, low power consumption, and equipment volume small effect
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[0014] Example 1
[0015] A coal grinding device for a high-efficiency hot water boiler, comprising a preliminary coal crushing box 1, a fine coal grinding box 2, a coal conveying pipe 3, a coal feeding pipe 4, and a coal discharge hopper 5. The bottom end of the preliminary coal crushing box 1 is A coal feeding pipe 4 is installed at the top of the preliminary coal crushing box 1; a coal outlet 5 is installed at the bottom end of the fine grinding coal box 2; the preliminary coal crushing box 1 There are two left and right rotary striking devices 6 inside. The rotating striking device 6 is composed of a rotating motor 7, a rotating shaft 8, and a plurality of striking rollers 9. The rotating motor 7 is installed on the top surface of the preliminary coal crushing box 1, and is connected to the preliminary The rotating shaft 8 inside the crushed coal box 1, the plurality of hitting rollers 9 are installed on the left and right sides of the rotating shaft 8; the inside of t...
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[0016] Example 2
[0017] An electric control valve 14 is installed inside the coal conveying pipe 3 , and the electric control valve 14 is connected to the controller 13 .
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[0018] Example 3
[0019] The inner wall of the preliminary coal crushing box 1 is a thickened stainless steel inner wall.
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