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Steel ball coal mill with dual inputs and dual outputs

A steel ball pulverizer, double-in and double-out technology, applied in grain processing and other directions, can solve the problems of large concentration deviation of air-pulverized mixture, affecting boiler combustion thermal efficiency, poor pulverized coal uniformity, etc., to achieve stable output and fineness, and structure. Simple, low air-to-coal ratio

Active Publication Date: 2006-12-06
上海电气上重碾磨特装设备有限公司 +1
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Problems solved by technology

[0005] The disadvantages of the existing double-inlet and double-outlet steel ball coal mills are: large footprint, high energy consumption, low separation efficiency, large concentration deviation of air-powder mixture, and poor uniformity of coal powder, which directly affect the thermal efficiency of boiler combustion

Method used

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  • Steel ball coal mill with dual inputs and dual outputs
  • Steel ball coal mill with dual inputs and dual outputs
  • Steel ball coal mill with dual inputs and dual outputs

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Embodiment Construction

[0019] As shown in Figures 1 and 2, the double-inlet and double-outlet steel ball coal mill of the present invention includes a rotating part 1, a main bearing 2, a left and right screw conveyor 3, a coal mixing box 4, a separator connecting pipe 5, a separator 6, and a main motor 7 , reducer 8, large and small gear transmission device 9, soundproof cover 10, slow speed transmission device 11, ball adding device 12, large gear sealing device 13.

[0020] The rotating part 1 is supported by the main bearing 2 and arranged on the foundation, and the screw conveyors 3 are arranged symmetrically at the left and right ends of the rotating part 1 . The coal mixing box 4 is connected with the bottom of the screw conveyor 3 through the coal drop pipe. The separator 6 is connected to the annular channel in the screw conveyor 3 through the separator connecting pipe 5 . The cylinder of the rotating part 1 is driven to rotate by the main motor 7 through the reducer 8 and the large and sm...

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Abstract

A steel ball grinder with dual inlets and dual outlets for grinding coal is composed of rotary unit, main bearing, left and right screw conveyers, coal mixing case, separator and its connection pipe, master motor, speed reducer, gear drive system and noise isolating hood. Said separator consists of external and internal conic bodies, regulating baffle, flapper, coal returning case and blocking valve.

Description

technical field [0001] The invention relates to a double-inlet and double-outlet steel ball coal mill applied to a boiler pulverizing system of a thermal power plant. Background technique [0002] Before the appearance of double-inlet and double-outlet steel ball coal mills, due to the limitation of the technical conditions at that time, my country generally adopted medium-storage single-inlet and single-outlet steel ball pulverizers for burning anthracite and lean coal with high abrasiveness and high hardness. system. The disadvantages of this powder making system are complex structure, low powder making efficiency, full automation cannot be realized, single function, and cannot be used for direct blowing. [0003] The double-inlet and double-outlet steel ball coal mill is a new type of pulverizing equipment developed on the basis of the single-inlet and single-outlet steel ball coal mill. It overcomes the shortcomings of single-inlet and single-outlet steel ball coal mill...

Claims

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Application Information

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IPC IPC(8): B02C17/18B02C17/00
Inventor 马文祥佟成功谈树涛李韦达陈明陈刚王忠卫
Owner 上海电气上重碾磨特装设备有限公司
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