Medium-free micro pulverizer

A micro-powder mill, medium-free technology, applied in the field of pulverizing machinery, can solve the problems of low one-time grinding ratio, unsatisfactory grinding effect, and inconvenient maintenance, etc., to reduce production cost, prolong service life, High crushing efficiency

Inactive Publication Date: 2012-12-05
王瑞琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ball mills, Raymond mills, cone mills, etc. are mainly used to crush mineral raw materials in production. The grinding effect is not ideal, mainly because the one-time grinding ratio of the machine is generally very low, the unit processing capacity is limited, and the machine consumes a lot of energy. The wear and tear is serious, and the maintenance is not very convenient. Therefore, there is an urgent need for a fine crushing machine with low energy consumption, high crushing ratio and long service life.

Method used

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  • Medium-free micro pulverizer
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  • Medium-free micro pulverizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1, taking the single impeller assembly as an example, refer to the attached figure 1 , attached figure 2 , attached Figure 6 , attached Figure 7 , attached Figure 8 As shown, the mediumless micropowder mill is a kind of machine driven by the motor to provide power and work. It is mainly composed of two parts: the rotating part and the fixed part. The rotating part is the most important part of the machine. Its operation The quality directly determines the performance and service life of the machine, so there are strict requirements on the selection of materials and machining accuracy of its components; the rotating part is mainly composed of the driving wheel or coupling, the lower rotating bearing Assemblies, permanent magnetic thrust bearing assembly (or mechanical static pressure thrust bearing assembly), upper rotating bearing assembly, main shaft and impeller assembly, etc.; lower rotating bearing assembly consists of lower bearing housing 28, bea...

Embodiment 2

[0079] Embodiment two, referring to the attached image 3 , 6 , 7, 8, 9, 10, 11, 12, and 13 show that it is basically the same as the structure of Embodiment 1, and its improvements are:

[0080] 1. The crushing chamber 64 in Embodiment 2 adopts a flat cylindrical cylinder structure completely, and the main liner in the crushing chamber is also changed to be composed of an upper liner 81 and an arc-shaped main liner 82. The upper and lower parts are combined, and a And fixed in the crushing chamber cylinder shell 15 and keep close fit with its inner wall; the upper liner 81 is a disc-shaped thick wear-resistant plate whose outer diameter is as large as the inner diameter of the crushing chamber cylindrical shell 15, and its center The aperture is slightly smaller than the inner diameter of the powder guide barrel 9 located at its upper end, and its thickness is the same as or slightly thinner than that of the arc-shaped main liner 82, and its lower surface is set to a certain...

Embodiment 3

[0085] Embodiment three, with reference to the attached Figure 4 , 6 , 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, and 17, embodiment three has many similarities with the foregoing embodiment one and embodiment two, and its improvements are as follows:

[0086] 1. In Embodiment 3, the primary crushing form in Embodiment 1 and Embodiment 2 is improved to a multi-stage crushing form. Embodiment 3 here is illustrated by taking the secondary crushing form as an example: the crushing chamber in Embodiment 3 The shell is divided into upper, middle and lower parts. The upper part is the upper crushing chamber shell (also known as the primary crushing chamber shell) 120, the middle part is the cyclone separation chamber 96, and the lower part is the crushing chamber cylinder shell (also known as the secondary crushing chamber body). shell) 15; upper liner 94, arc-shaped main liner 82, wear-resistant ring 144 and material guide liner 93 are arranged from top to bottom in upper crushing cham...

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Abstract

The invention provides an ore crushing machinery without adding a crushing medium, which is a dry crushing machinery with a tower type structure; a rotating part is in the form of a longitudinal rotating shaft; one or more impeller main bodies are mounted on a shaft in series; a plurality of replaceable wear resistant blades and surface protective plates are arranged on each impeller main body, so that the impeller main body forms a rotor impeller group assembly with single-layer or multi-layer blades; a wear resistant lining layer, which comprises an upper lining plate, a material guide lining plate, an arc main lining plate, a bottom lining plate, a wear resistant fixing ring and so on, is correspondingly arranged on the periphery of each impeller; an interior cavity of each impeller forms a crushing chamber; and the crushing chambers in various stages are communicated with each other in a vertical direction. The ore crushing machinery provided by the invention has the advantages of high one-time crushing efficiency, high fine powder qualified rate, convenience in controlling, wide inlet material particle range, long service life, convenience in maintenance and no dust and noise pollution, and is very suitable for ore dressing metallurgy and architectural material industries; and standard dry powders or ore pulps can be directly produced, so that the production process is greatly simplified and production cost is reduced.

Description

technical field [0001] The invention relates to a crushing machine, in particular to a medium-free crushing machine for crushing rock mineral materials with a certain hardness. Background technique [0002] In mining and metallurgical production, in order to extract valuable components from natural minerals, the useful components must be disintegrated into individual particle structures after fine grinding, and then they can be separated and purified. At present, ball mills, Raymond mills, cone mills, etc. are mainly used to crush mineral raw materials in production. The grinding effect is not ideal, mainly because the one-time grinding ratio of the machine is generally very low, the unit processing capacity is limited, and the machine consumes a lot of energy. Energy wear is serious, and maintenance is not very convenient. Therefore, there is an urgent need for a fine crushing machine with low energy consumption, high crushing ratio, and long life. Invention content: [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/00
Inventor 王瑞琪
Owner 王瑞琪
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