Wear-resistant treatment method for magnetic separator drum and wear-resistant magnetic separator drum

A technology of wear-resistant treatment and magnetic separator, applied in the field of mineral separation, can solve problems such as high construction requirements and low impact resistance of ceramic sheets, and achieve the effects of shortening repair time, prolonging life, and strong applicability

Active Publication Date: 2015-08-26
PANZHIHUA XINBANG IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the construction requirements are relatively high, and the ceramic sheet is not impact resistant.

Method used

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  • Wear-resistant treatment method for magnetic separator drum and wear-resistant magnetic separator drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The specific wear-resistant treatment method of the magnetic separator drum is as follows:

[0025] 1) During the maintenance period of the machine, disassemble the drum of the magnetic separator from the magnetic separator and perform the following pretreatment: use brown corundum sand with a mesh size of 80 mesh or more to sandblast the drum of the magnetic separator, and use dichloromethane as a solvent to clean it Magnetic separator drum 2-3 times, remove the oil on the surface of the magnetic separator drum at 300-350°C, and finally use purified high-pressure gas to clean the surface of the drum to make the surface oil-free and dust-free;

[0026] 2) Assemble the thoroughly cleaned cylinder into the mold, adjust the design accuracy of the mold to be below 1mm in advance, and improve the concentricity (with the flanges at both ends as a reference) and spray Teflon anti-sticking treatment on the surface of the mold;

[0027] 3) Select the polyurethane prepolymer poly...

Embodiment 2

[0031] The specific wear-resistant treatment method for the ore magnetic separator drum with a particle size of 12mm or more is as follows:

[0032] 1) During the maintenance period of the machine, disassemble the magnetic separator drum from the magnetic separator and perform the following pretreatment: use brown corundum sand with a mesh size of 80-100 mesh to sandblast the magnetic separator drum, and use industrial alcohol as a solvent to clean the magnetic separator. Separator drum 2-3 times, at 300-350°C, remove the oil on the surface of the magnetic separator drum, and finally use purified high-pressure gas to clean the surface of the drum to make the surface oil-free and dust-free;

[0033] 2) Assemble the thoroughly cleaned cylinder into the mold, adjust the design accuracy of the mold to less than 1mm in advance, and improve the concentricity (with the flanges at both ends as a reference) and spray Teflon anti-sticking treatment on the surface of the mold, and Put th...

Embodiment 3

[0039] The specific wear-resistant treatment method for the ore magnetic separator drum with a mesh size of 100 mesh or more is as follows:

[0040] 1) During the maintenance period of the machine, disassemble the magnetic separator drum from the magnetic separator and perform the following pretreatment: use brown corundum sand with a mesh size of 80-100 mesh to sandblast the magnetic separator drum, and use industrial alcohol as a solvent to clean the magnetic separator. Separator drum 2-3 times, at 300-350°C, remove the oil on the surface of the magnetic separator drum, and finally use purified high-pressure gas to clean the surface of the drum to make the surface oil-free and dust-free;

[0041] 2) Assemble the thoroughly cleaned cylinder into the mold, adjust the design accuracy of the mold to less than 1mm in advance, and improve the concentricity (with the flanges at both ends as a reference) and spray Teflon anti-sticking treatment on the surface of the mold, and Put th...

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Abstract

The invention provides a wear-resistant treatment method for a magnetic separator drum. The wear-resistant treatment method comprises the following steps: putting the magnetic separator drum into a mold after pre-cleaning, pouring polyurethane prepolymer into the mold, heating the mold to be 100 to 120 DEG C, and carrying out sulfurization for 30 to 60 min, wherein the polyurethane prepolymer is formed by polymerizing any one raw material system of PTMG, TDI, MDI and NDI; carrying out demoulding; finally, allowing the treated magnetic separator drum to stand naturally for a certain time. The invention further provides the treated wear-resistant magnetic separator drum which comprises a drum base body and a wear layer coating the drum base body, wherein the wear layer is formed by pouring of the polyurethane prepolymer. The wear-resistant magnetic separator drum provided by the embodiment of the invention is long in service life, and greatly higher in wear resistance, shock resistance and age resistance.

Description

technical field [0001] The invention relates to the field of mineral separation, in particular to a wear-resistant treatment method for a magnetic separator drum and a wear-resistant magnetic separator drum. Background technique [0002] Magnetic separator is one of the most widely used and highly versatile models in the industry. It is suitable for the separation of substances with magnetic differences. Magnetic separators are widely used in mining, wood, kiln, chemical, food and other industries. It is especially commonly used in the process of beneficiation. However, the more troublesome thing for the mineral processing industry is the wear-resistant problem of the magnetic separator drum, because the wear-resistant life of the magnetic separator drum is closely related to the production efficiency and cost of the mineral processing enterprise. Improving the life of the magnetic separator drum can create invisible economic benefits for the enterprise. , so all beneficiat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/02B29B13/00B03C1/10B29K75/00B29K105/22B29K705/00
Inventor 刘玮
Owner PANZHIHUA XINBANG IND & TRADE CO LTD
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