External-circulation cement finish grinding system for vertical mill

An external circulation, vertical mill technology, applied in cement production and other directions, can solve problems such as difficulty in adapting, loss of hot air drying function, etc.

Active Publication Date: 2013-10-09
NANJING KISEN INT ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the powder separator is directly removed from the vertical mill and replaced by other powder separators to select powder outside the mill and

Method used

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  • External-circulation cement finish grinding system for vertical mill
  • External-circulation cement finish grinding system for vertical mill
  • External-circulation cement finish grinding system for vertical mill

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as Figure 1 to Figure 4 As shown, the present invention provides an external circulation cement vertical mill final grinding system, including a belt conveyor 1, a bucket elevator 2, a steady flow bin 4, a vertical mill 5, a dust collector 7, a fan 8, and a chute 9; Belt conveyor 1 is used to transport materials, and chute 9 is used to transport fine powder materials; bucket elevator 2, coarse powder separator 3, steady flow bin 4, and vertical mill 5 are connected in sequence to form a circulation system; bucket elevator 2. Coarse powder separator 3, fine powder separator 6, steady flow bin 4, and vertical mill 5 are connected in sequence to form a circulation system; bucket elevator 2, coarse powder separator 3, fine powder separator 6, collection The duster 7 and the fan 8 are connected in sequence; the vertical mill 5 is provided with a feed inlet 5-3...

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PUM

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Abstract

The invention discloses an external-circulation cement finish grinding system for a vertical mill. The external-circulation cement finish grinding system comprises a belt conveyor, a bucket elevator, a steady current bin, a vertical mill, a dust collector, a fan and a chute, wherein the belt conveyor is used for conveying materials inside, and the chute is used for conveying fine powder finished products outside. The external-circulation cement finish grinding system is characterized in that the bucket elevator, a coarse powder concentrator, the steady current bin and the vertical mill are sequentially connected to form a circulating system; the bucket elevator, the coarse powder concentrator, a refined powder concentrator, the steady current bin and the vertical mill are sequentially connected to form a circulating system; the bucket elevator, the coarse powder concentrator, the refined powder concentrator, the dust collector and the fan are sequentially connected; a powder concentration device is positioned outside the vertical mill and is formed by serially connecting the coarse powder concentrator and the refined powder concentrator; the coarse powder concentrator comprises three paths of air inlet pipelines which are connected in parallel, one path is connected with a heat source, one path is connected with cold air, and one path is connected with a dust collecting air inlet of the vertical mill.

Description

technical field [0001] The invention relates to a cement grinding system, in particular to an external circulation cement vertical mill final grinding system. Background technique [0002] In the field of cement grinding, tube mills are gradually replaced by efficient grinding equipment in terms of energy-saving grinding due to their low energy utilization and grinding efficiency. The vertical mill is a kind of material bed grinding equipment with high grinding efficiency. The vertical mill final grinding system has been widely used in cement raw material grinding and coal powder preparation, and there are many cases in cement grinding. In the past, people worried that the cement prepared by the vertical mill final grinding system needs high water content and poor appearance. Unfavorable properties such as low sphericity and too concentrated particle distribution have been gradually overturned by the practice of cement workers. The cement ground by the vertical mill final g...

Claims

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Application Information

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IPC IPC(8): C04B7/52
CPCY02P40/10
Inventor 康宇李安平钟根顾积锋
Owner NANJING KISEN INT ENG
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