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A discharge screening device for a ball mill

A technology of ball mill and discharge sieve, which is applied in the direction of grain processing, etc., can solve the problems that the screening circuit is mixed into the cylindrical sieve and affects the working efficiency of the process, so as to improve the separation ability, improve the function of grinding and screening, and improve the work efficiency Effect

Active Publication Date: 2018-05-01
CITIC HEAVY INDUSTRIES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the protective covers of the existing mills cannot control the classification of the screened materials very well, so the screening circuit of unqualified materials is easy to mix into the under-screened materials of the cylinder screen, thereby affecting the work of the subsequent process flow efficiency

Method used

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  • A discharge screening device for a ball mill
  • A discharge screening device for a ball mill
  • A discharge screening device for a ball mill

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Embodiment Construction

[0021] As shown in the figure, a discharge screening device for a ball mill includes a cylindrical screen 5, a waste discharge screen 2, a bell mouth 3 and a protective cover. The cylindrical screen 5 rotates together with the mill cylinder to discharge The waste sieve 2 includes a cylindrical sieve body 2-1, one end of the cylindrical sieve body 2-1 is open and the other end is closed by a baffle 2-2, wherein the cylindrical sieve body 2-1 of the waste sieve 2 The open end is connected to the discharge end of the cylindrical screen 5 through the flange I2-9, the bell mouth 3 is set outside the cylindrical screen body 2-1, and the narrowing end of the bell mouth 3 passes through the flange II3-1 Connected to the discharge port 2-7, the baffle plate 2-2 around the discharge port 2-7 is provided with a number of bolt holes 2-10 for fixing the flange II 3-1. The baffle plate 2-2 is provided with a discharge port 2-7, the discharge port 2-7 is a circular hole and is located at the...

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Abstract

A discharge screening device for a ball mill relates to a screening device for milled material. The discharge screening device comprises a drum screen which rotates together with a mill drum, wherein a discharge end of the drum screen is connected with a reject discharging screen; the reject discharging screen comprises a cylindrical screen body, of which one end is open and the other end is closed; a discharge opening is formed in a baffle at the closed end; a bell mouth is arranged outside the cylindrical screen body; a reject bin is arranged in the cylindrical screen body; the discharge opening is located at one end of the reject bin; a feed opening is formed in each of two sides of the reject bin; material discharged from the drum screen into the reject discharging screen falls into the reject bin via the two feed openings in two sides of the reject bin in the rotation process of the reject discharging screen respectively; two inclined plates are arranged in the reject bin; and the two inclined plates are used for guiding the material, which falls into the reject bin via the two feed openings, to flow into the discharge opening at the other end of the reject bin to be discharged via the bell mouth. The discharge screening device can improve the accuracy of material separation of a drum screening device and effectively finish separation of oversize products and undersize products.

Description

technical field [0001] The invention relates to the technical field of screening devices for grinding materials, in particular to a discharge screening device for ball mills. Background technique [0002] As a kind of screening machine, the cylinder screening device is characterized in that the screen is a cylinder with many round holes or square holes. The cylindrical screen is installed behind the discharge bushing of the mill, and is connected with the discharge bushing bolts. When the mill is running, it rotates with the mill cylinder. When the discharge of the ball mill flows to the cylinder screen, the material is continuously rolled in the cylinder screen, and the fine grade material is finally screened out from the screen holes on the cylindrical working surface, and the coarse material is discharged from the other end of the cylinder screen. Since the cylindrical screen rotates and is hollow, it does not have a further material screening structure, and its protecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C17/18
CPCB02C17/184
Inventor 和蕴锋卢亚楠闫玲娣任亚楠陈松战韩春阳杜强李超刘俊王春红刘建平解华华古创国张克兵
Owner CITIC HEAVY INDUSTRIES CO LTD
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