Medium-speed vertical mill for milling petroleum coke

A technology of petroleum coke and grinding device, applied in grain processing and other directions, can solve the problems of no dynamic and static combined rotary separator, unable to achieve stable and balanced classification flow field, etc., to improve grinding efficiency, optimize grinding curve, and improve service life Effect

Active Publication Date: 2014-05-21
BEIJING POWER EQUIP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this utility model does not have the advantages of a dynamic and static combined rotary separator, and fails to organically combine free vortex and forced vortex, and cannot achieve stable and balanced grading flow field, and is not suitable for medium-speed vertical mills for grinding petroleum coke

Method used

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  • Medium-speed vertical mill for milling petroleum coke
  • Medium-speed vertical mill for milling petroleum coke
  • Medium-speed vertical mill for milling petroleum coke

Examples

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Embodiment Construction

[0074] In order to better understand the present invention, the present invention is described in detail below in conjunction with specific embodiment, but obviously can carry out different modification and modification to the present invention and not exceed the broader spirit and scope of the present invention that appended claims limit . Accordingly, the following examples are illustrative and not limiting.

[0075] Such as Figure 1-15 As shown, a medium-speed vertical mill applied to grinding petroleum coke includes a grinding device, the grinding device includes a grinding roller assembly 4 and a grinding disc assembly 6, and the grinding roller assembly 4 includes a grinding roller and a grinding roller sleeve, so The grinding disc assembly 6 is provided with a lining plate, wherein: the width of the grinding roller sleeve is increased by at least 10mm on the original basis, the thickness of the lining plate is increased by at least 20mm, and the wrap angle of the grin...

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Abstract

The invention relates to a medium-speed vertical mill for milling petroleum coke. The medium-speed vertical mill comprises a milling device including a milling roll assembly and a milling disc assembly, wherein the milling roll assembly comprises a milling roll and a milling roll sleeve, and a lining plate is arranged in the milling disc assembly; the width of the milling roll sleeve is at least increased by 10mm on the original basis, the thickness of the lining plate is at least increased by 20mm, and an wrap angle of the milling roll is at least reduced by 38.45 degrees. Compared with the prior art, the medium-speed vertical mill has the beneficial effects that on the basis of a conventional ZGM medium-speed coal mill, the milling curve is optimized, the milling efficiency is improved, and the service life of the improved complete machine is substantially prolonged; by utilizing a hydraulic variable loading system, a hydraulic oil pipeline system and a rotary separator are optimized, and by arranging a water injector, the operation stability of the medium-speed vertical mill for milling the petroleum coke is guaranteed; the technical scheme can completely meet the milling requirement of the petroleum coke, and indexes of a ground product are that the fineness R90 is less than 1.5% and the moisture Mpc is less than 1%.

Description

technical field [0001] The invention relates to a medium-speed vertical mill, in particular to a medium-speed vertical mill applied to grinding petroleum coke. Background technique [0002] Conventional ZGM medium-speed coal mills are generally used for grinding grindability coefficient HGI=40~100, total moisture Mt=8~40%, product fineness R 90 =2~40% of the material, such as the grinding material is petroleum coke with special properties, because of its grindability coefficient HGI=35~50, moisture Mt=10%, and its product grinding requirements need to reach the fineness R 90 <1.5%, moisture Mpc<1%, the conventional ZGM medium-speed coal mill cannot meet the requirements of use, so the conventional ZGM medium-speed coal mill needs to be technically improved according to the characteristics of petroleum coke to meet its grinding requirements. [0003] The Chinese invention patent with the patent number ZL201110118720.4 discloses a wear-resistant split roller sleeve. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C15/00
Inventor 林子明王庆文岳子江
Owner BEIJING POWER EQUIP GRP
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