CN108057616B - Surface treatment method of drum screen applied to mineral separation industry - Google Patents
Surface treatment method of drum screen applied to mineral separation industry Download PDFInfo
- Publication number
- CN108057616B CN108057616B CN201711290685.8A CN201711290685A CN108057616B CN 108057616 B CN108057616 B CN 108057616B CN 201711290685 A CN201711290685 A CN 201711290685A CN 108057616 B CN108057616 B CN 108057616B
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- parts
- treatment method
- surface treatment
- wear
- drum screen
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of processing treatment of magnetic separation equipment, and discloses a surface treatment method of a drum screen applied to the mineral separation industry.
Description
Technical Field
The invention belongs to the technical field of processing of magnetic separation equipment, and particularly relates to a surface treatment method of a drum screen applied to the mineral separation industry.
Background
The drum sieve is a new-generation material sieving equipment, and is mainly formed from motor, speed reducer, drum device, machine frame, sealing cover and material inlet and outlet. The roller device is obliquely arranged on the rack, and the motor is connected with the roller device through the speed reducer and the shaft coupling to drive the roller device to rotate around the axis of the roller device. After the materials enter the roller device, the materials on the screen surface are overturned and rolled due to the inclination and rotation of the roller device, so that the qualified materials (undersize products) are discharged through a discharge hole at the bottom of the rear end of the roller, and the unqualified materials (oversize products) are discharged through a discharge hole at the tail part of the roller. Because the material is upset, the roll in the cylinder, make the material of card in the sieve mesh can be popped out, prevent that the sieve mesh from blockking up. The principle and structure of the roller sand screening machine, the roller screening machine and the roller screen are almost the same, and the difference exists in people's understanding and calling. The working principle is as follows: the whole equipment is in an inclined state with the ground level, and the outside of the equipment is sealed by a sealing isolation cover so as to prevent the environment and environment from being polluted. The screening cylinder rotates at a certain rotating speed through the variable speed and reduction system, materials are separated from top to bottom through the screening cylinder, fine materials are discharged from the lower portion of the front end of the screening cylinder, and coarse materials are discharged from the tail portion of the lower end of the screening cylinder.
The drum screen is applied to the mineral separation industry, and due to the magnetic force action of magnetic ores, separation is difficult, other mixtures are easily adsorbed and mixed, so that the repeated workload of mineral separation is increased, and further improvement on the drum screen is needed to adapt to the screening work.
Disclosure of Invention
The invention aims to solve the existing problems and provides a surface treatment method of a drum screen applied to the mineral separation industry, so that a screening cylinder is kept clean, non-sticky, non-blocking and free of influence on the screening effect all the time in the whole working process.
The invention is realized by the following technical scheme:
a surface treatment method of a drum screen applied to the mineral separation industry comprises the following steps:
(1) polishing the surface of a roller screen by 320-mesh and 400-mesh sand paper, scrubbing for 1-2 times by using a cleaning agent, washing by using clear water, cleaning by using the cleaning agent, and drying by blowing after cleaning, wherein the cleaning agent contains glycerol with the concentration of 20-30%, sodium carbonate with the concentration of 0.8-1.0% and hydrogen peroxide with the concentration of 0.2-0.4%;
(2) spraying the prepared epoxy resin coating on the surface of the dried roller, wherein the spraying thickness is 12-15 microns, and the coating is prepared from the following components in parts by weight: 100-110 parts of bisphenol A type epoxy resin, 25-30 parts of polyamide, 15-25 parts of diethylenetriamine, 10-15 parts of methyltriethoxysilane, 5-10 parts of dibutyltin dilaurate, 50-55 parts of wear-resistant filler and 400 parts of mixed solvent 350-one.
As a further improvement to the above scheme, the mixed solvent comprises the following components in percentage by mass: 20-30% of butyl acetate, 15-20% of ethyl acetate, 10-15% of xylene, 8-10% of trichloromethane and the balance of cyclohexanone.
As a further improvement to the scheme, the wear-resistant filler is prepared from the following components in parts by weight: 15-17 parts of magnesium oxide, 13-15 parts of silicon oxide, 11-13 parts of potassium oxide, 10-12 parts of aluminum oxide, 8-10 parts of graphite and 6-8 parts of molybdenum disulfide.
As a further improvement to the above scheme, the treatment method of the wear-resistant addition is as follows: firstly, grinding the wear-resistant filler to the particle size of between 120-plus 150 meshes, mixing in a ball mill, calcining at the high temperature of between 350-plus 380 ℃ for 2 to 3 hours, and cooling to be put into use.
Compared with the prior art, the invention has the following advantages: the invention provides a surface treatment method of a drum screen applied to the mineral separation industry, aiming at solving the problem that the surface of the existing drum screen applied to the mineral separation industry is easy to be stuck and blocked.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
A surface treatment method of a drum screen applied to the mineral separation industry comprises the following steps:
(1) polishing the surface of a roller screen by using 320-mesh and 400-mesh abrasive paper, scrubbing for 1 time by using a cleaning agent, washing with clear water, cleaning with the cleaning agent containing 20% glycerol, 0.8% sodium carbonate and 0.2% hydrogen peroxide, and drying after cleaning;
(2) and spraying the prepared epoxy resin coating on the surface of the dried roller, wherein the spraying thickness is 12 microns, and the coating is prepared from the following components in parts by weight: 100 parts of bisphenol A epoxy resin, 25 parts of polyamide, 15 parts of diethylenetriamine, 10 parts of methyltriethoxysilane, 5 parts of dibutyltin dilaurate, 50 parts of wear-resistant filler and 350 parts of mixed solvent.
As a further improvement to the above scheme, the mixed solvent comprises the following components in percentage by mass: 20% of butyl acetate, 15% of ethyl acetate, 10% of xylene, 8% of chloroform and the balance cyclohexanone.
As a further improvement to the scheme, the wear-resistant filler is prepared from the following components in parts by weight: 15 parts of magnesium oxide, 13 parts of silicon oxide, 11 parts of potassium oxide, 10 parts of aluminum oxide, 8 parts of graphite and 6 parts of molybdenum disulfide.
As a further improvement to the above scheme, the treatment method of the wear-resistant addition is as follows: firstly, grinding the wear-resistant filler to the particle size of 120-150 meshes, mixing in a ball mill, calcining at 350 ℃ for 2 hours, and cooling to be put into use.
Example 2
A surface treatment method of a drum screen applied to the mineral separation industry comprises the following steps:
(1) polishing the surface of a roller screen by using 320-mesh and 400-mesh abrasive paper, scrubbing for 1 time by using a cleaning agent, washing with clear water, cleaning with the cleaning agent containing 25% glycerol, 0.9% sodium carbonate and 0.3% hydrogen peroxide, and drying after cleaning;
(2) and spraying the prepared epoxy resin coating on the surface of the dried roller, wherein the spraying thickness is 13 microns, and the coating is prepared from the following components in parts by weight: 105 parts of bisphenol A epoxy resin, 28 parts of polyamide, 20 parts of diethylenetriamine, 12 parts of methyltriethoxysilane, 8 parts of dibutyltin dilaurate, 53 parts of wear-resistant filler and 380 parts of mixed solvent.
As a further improvement to the above scheme, the mixed solvent comprises the following components in percentage by mass: 25% of butyl acetate, 18% of ethyl acetate, 12% of xylene, 9% of trichloromethane and the balance of cyclohexanone.
As a further improvement to the scheme, the wear-resistant filler is prepared from the following components in parts by weight: 16 parts of magnesium oxide, 14 parts of silicon oxide, 12 parts of potassium oxide, 11 parts of aluminum oxide, 9 parts of graphite and 7 parts of molybdenum disulfide.
As a further improvement to the above scheme, the treatment method of the wear-resistant addition is as follows: firstly, the wear-resistant filler is ground to the particle size of 120-150 meshes, mixed in a ball mill and then calcined at the high temperature of 360 ℃ for 2.5 hours, and then the mixture can be put into use after being cooled.
Example 3
A surface treatment method of a drum screen applied to the mineral separation industry comprises the following steps:
(1) polishing the surface of a roller screen by using 320-mesh and 400-mesh sand paper, scrubbing for 2 times by using a cleaning agent, washing with clear water, cleaning with the cleaning agent containing 30% glycerol, 1.0% sodium carbonate and 0.4% hydrogen peroxide, and drying after cleaning;
(2) and spraying the prepared epoxy resin coating on the surface of the dried roller, wherein the spraying thickness is 15 microns, and the coating is prepared from the following components in parts by weight: 110 parts of bisphenol A type epoxy resin, 30 parts of polyamide, 25 parts of diethylenetriamine, 15 parts of methyltriethoxysilane, 10 parts of dibutyltin dilaurate, 55 parts of wear-resistant filler and 400 parts of mixed solvent.
As a further improvement to the above scheme, the mixed solvent comprises the following components in percentage by mass: 30% of butyl acetate, 20% of ethyl acetate, 15% of xylene, 10% of trichloromethane and the balance of cyclohexanone.
As a further improvement to the scheme, the wear-resistant filler is prepared from the following components in parts by weight: 17 parts of magnesium oxide, 15 parts of silicon oxide, 13 parts of potassium oxide, 12 parts of aluminum oxide, 10 parts of graphite and 8 parts of molybdenum disulfide.
As a further improvement to the above scheme, the treatment method of the wear-resistant addition is as follows: firstly, grinding the wear-resistant filler to the particle size of 120-150 meshes, mixing in a ball mill, calcining at the high temperature of 380 ℃ for 3 hours, and cooling to be put into use.
Claims (4)
1. A surface treatment method of a drum screen applied to the mineral separation industry is characterized by comprising the following steps:
(1) polishing the surface of a roller screen by 320-mesh and 400-mesh sand paper, scrubbing for 1-2 times by using a cleaning agent, washing by using clear water, cleaning by using the cleaning agent, drying by blowing after cleaning, wherein the cleaning agent contains glycerol with the concentration of 20-30%, sodium carbonate with the concentration of 0.8-1.0% and hydrogen peroxide with the concentration of 0.2-0.4%;
(2) spraying the prepared epoxy resin coating on the surface of the dried roller, wherein the spraying thickness is 12-15 microns, and the coating is prepared from the following components in parts by weight: 100-110 parts of bisphenol A type epoxy resin, 25-30 parts of polyamide, 15-25 parts of diethylenetriamine, 10-15 parts of methyltriethoxysilane, 5-10 parts of dibutyltin dilaurate, 50-55 parts of wear-resistant filler and 400 parts of mixed solvent 350-one.
2. The surface treatment method of the drum screen applied to the mineral processing industry according to claim 1, characterized in that the mixed solvent comprises the following components in percentage by mass: 20-30% of butyl acetate, 15-20% of ethyl acetate, 10-15% of xylene, 8-10% of trichloromethane and the balance of cyclohexanone.
3. The surface treatment method of the drum screen applied to the mineral separation industry according to claim 1, wherein the wear-resistant filler is prepared from the following components in parts by weight: 15-17 parts of magnesium oxide, 13-15 parts of silicon oxide, 11-13 parts of potassium oxide, 10-12 parts of aluminum oxide, 8-10 parts of graphite and 6-8 parts of molybdenum disulfide.
4. The surface treatment method of the drum screen applied to the mineral separation industry according to claim 1, characterized in that the treatment method of the wear-resistant filler is as follows: firstly, the wear-resistant filler is ground to the particle size of 120-150 meshes, mixed in a ball mill and then calcined at the high temperature of 350-380 ℃ for 2-3 hours, and then the mixture can be put into use after being cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290685.8A CN108057616B (en) | 2017-12-08 | 2017-12-08 | Surface treatment method of drum screen applied to mineral separation industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290685.8A CN108057616B (en) | 2017-12-08 | 2017-12-08 | Surface treatment method of drum screen applied to mineral separation industry |
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| Publication Number | Publication Date |
|---|---|
| CN108057616A CN108057616A (en) | 2018-05-22 |
| CN108057616B true CN108057616B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711290685.8A Expired - Fee Related CN108057616B (en) | 2017-12-08 | 2017-12-08 | Surface treatment method of drum screen applied to mineral separation industry |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112126548A (en) * | 2020-10-27 | 2020-12-25 | 北京中冶隆生环保科技发展有限公司 | Technology for recycling sealed pit mud of Maotai-flavor liquor fermentation pit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9409209B2 (en) * | 2012-05-25 | 2016-08-09 | Derrick Corporation | Injection molded screening apparatuses and methods |
| CN203917102U (en) * | 2014-05-23 | 2014-11-05 | 华亭煤业集团有限责任公司 | Cylinder screen device |
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| CN108057616A (en) | 2018-05-22 |
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Granted publication date: 20201225 Termination date: 20211208 |