CN111790519A - Online cleaning method for excitation coil of high-gradient magnetic separator - Google Patents
Online cleaning method for excitation coil of high-gradient magnetic separator Download PDFInfo
- Publication number
- CN111790519A CN111790519A CN202010698159.0A CN202010698159A CN111790519A CN 111790519 A CN111790519 A CN 111790519A CN 202010698159 A CN202010698159 A CN 202010698159A CN 111790519 A CN111790519 A CN 111790519A
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- China
- Prior art keywords
- exciting coil
- dirt
- cleaning
- magnetic separator
- gradient magnetic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/032—Matrix cleaning systems
Abstract
The invention discloses an online cleaning method for excitation coils of a high-gradient magnetic separator, which belongs to the field of magnetic separator equipment and comprises the following steps: blowing and spraying the exciting coil by using a blower to remove dust attached to the surface; selecting dirt on the exciting coil for detection, and judging the acid-base degree of the dirt; preparing an acidic or alkaline cleaning solution which is beneficial to removing dirt according to the acid-base degree of the dirt; a booster pump is adopted to pump cleaning fluid to carry out high-pressure spraying on the exciting coil; and after the flushing is finished, the exciting coil is blown by a blower until the moisture on the surface of the exciting coil is completely evaporated. By adopting the cleaning method, the exciting coil can be directly washed on line without taking down the exciting coil, so that the cleaning efficiency is improved, the service life of the high-gradient exciting coil is prolonged, the damage to the exciting coil is reduced, the downtime caused by dismantling and installing the exciting coil is saved, and the operating efficiency of the equipment is improved.
Description
Technical Field
The invention relates to the field of magnetic separator equipment, in particular to an online cleaning method for excitation coils of a high-gradient magnetic separator.
Background
The high-gradient magnetic separator is a strong magnetic separator for screening weak magnetic minerals, and its equipment mainly consists of pulse mechanism, exciting coil, iron yoke and rotating ring. In practical use, the blocking fault of the exciting coil of the high-gradient magnetic separator often occurs, and once the blocking fault of the exciting coil occurs, the exciting coil needs to be dismantled and repaired, so that the production capacity of the whole plant is directly reduced, the overhaul task is aggravated, the maintenance cost is obviously increased, and other adverse effects are caused. In order to avoid the above situation, the conventional method is to observe the working condition of the exciting coil at regular time, and when a certain amount of dirt is accumulated, relevant parts are timely disassembled to clean and then assembled again. The whole process is complicated, time and labor are wasted, and normal production is still influenced to a certain extent.
Disclosure of Invention
In order to overcome the defects that the prior high-gradient magnetic separator needs to disassemble an excitation coil for cleaning, has low efficiency, high labor intensity and the like, the invention aims to solve the technical problems that: provides a method for easily and conveniently cleaning excitation coils of a high-gradient magnetic separator on line.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the online cleaning method for the excitation coil of the high-gradient magnetic separator comprises the following steps:
a. blowing and spraying the exciting coil by using a blower to remove dust attached to the surface;
b. selecting dirt on the exciting coil for detection, and judging the acid-base degree of the dirt;
c. preparing an acidic or alkaline cleaning solution which is beneficial to removing dirt according to the acid-base degree detected in the step b;
d. a booster pump is adopted to pump cleaning fluid to carry out high-pressure spraying on the exciting coil;
e. and after the flushing is finished, the exciting coil is blown by a blower until the moisture on the surface of the exciting coil is completely evaporated.
Further, in the step c, if the dirt is acidic, a solution with the PH value of more than or equal to 8 and less than or equal to 9 is adopted for the corresponding cleaning solution; if the dirt is alkaline, the corresponding cleaning solution is a solution with pH being more than or equal to 6 and less than or equal to 7.
And further, the cleaning liquid in the step c washes the exciting coil in a recycling mode.
Further, in the step d, the spraying pressure of the cleaning liquid is 0.2-0.4 MPa.
The invention has the beneficial effects that: by adopting the cleaning method, the exciting coil can be directly washed on line without taking down the exciting coil, so that the cleaning efficiency is improved, the service life of the high-gradient exciting coil is prolonged, the damage to the exciting coil is reduced, the downtime caused by dismantling and installing the exciting coil is saved, and the operating efficiency of the equipment is improved.
Detailed Description
The present invention is further described below.
For cleaning the exciting coil, the exciting coil is usually taken down at present and then is scrubbed by a tool, so that the efficiency is low, and the exciting coil is easy to be damaged. The method for cleaning the exciting coil of the high-gradient magnetic separator is online cleaning, does not need to take the exciting coil down, and specifically comprises the following steps:
a. blowing and spraying the exciting coil by using a blower to remove dust attached to the surface;
b. selecting dirt on the exciting coil for detection, and judging the acid-base degree of the dirt;
c. preparing an acidic or alkaline cleaning solution which is beneficial to removing dirt according to the acid-base degree detected in the step b;
d. a booster pump is adopted to pump cleaning fluid to carry out high-pressure spraying on the exciting coil;
e. and after the flushing is finished, the exciting coil is blown by a blower until the moisture on the surface of the exciting coil is completely evaporated.
And a, firstly removing impurities such as dust and the like to expose dirt adhered to the exciting coil, so that subsequent sampling and key flushing are facilitated.
And b, in the sampling detection, a plurality of samples are taken at different positions as much as possible to carry out detection, and the acid-base degree of dirt is comprehensively judged.
And c, in the step of preparing the cleaning solution, the pH value of the solution is not easy to be too high, otherwise, the equipment is easy to be corroded and damaged. According to the detection, if the dirt is acidic, an alkaline solution with the PH value of more than or equal to 8 and less than or equal to 9 is adopted for the corresponding cleaning solution; if the dirt is alkaline, the corresponding cleaning solution is an acid washing solution with pH being more than or equal to 6 and less than or equal to 7. The acid-base degree of the cleaning liquid is not large, so that the dirt removing effect is ensured, and meanwhile, the equipment is not damaged.
In order to save the cleaning liquid, the cleaning liquid in step c is preferably used for washing the exciting coil in a recycling mode.
And d, when the exciting coil is washed in the step d, the spraying pressure of the cleaning liquid is preferably controlled to be 0.2-0.4 MPa. According to the test and long-term application adjustment, the pressure range can meet the dirt removing requirement, and impact damage to equipment caused by overlarge pressure can be avoided.
Compared with the existing cleaning mode, the cleaning method can directly wash the exciting coil on line, the exciting coil does not need to be taken down, the cleaning efficiency is improved, the damage to the exciting coil is reduced, the service life of the high-gradient exciting coil is prolonged, according to the practical application condition, the service life can be prolonged to 8-12 months than before, the consumption of spare parts is greatly reduced, meanwhile, the downtime caused by dismantling and installing the exciting coil is also saved, the operation efficiency of equipment is improved, and the cleaning method has good practicability and economic value.
Claims (4)
1. The method for cleaning the excitation coil of the high-gradient magnetic separator on line is characterized by comprising the following steps:
a. blowing and spraying the exciting coil by using a blower to remove dust attached to the surface;
b. selecting dirt on the exciting coil for detection, and judging the acid-base degree of the dirt;
c. preparing an acidic or alkaline cleaning solution which is beneficial to removing dirt according to the acid-base degree detected in the step b;
d. a booster pump is adopted to pump cleaning fluid to carry out high-pressure spraying on the exciting coil;
e. and after the flushing is finished, the exciting coil is blown by a blower until the moisture on the surface of the exciting coil is completely evaporated.
2. The on-line cleaning method for the excitation coil of the high-gradient magnetic separator as recited in claim 1, is characterized in that: in the step c, if the dirt is acidic, adopting a solution with the pH value of more than or equal to 8 and less than or equal to 9 corresponding to the cleaning solution; if the dirt is alkaline, the corresponding cleaning solution is a solution with pH being more than or equal to 6 and less than or equal to 7.
3. The on-line cleaning method for the excitation coil of the high-gradient magnetic separator as recited in claim 1, is characterized in that: and c, washing the exciting coil by the cleaning liquid in the step c in a recycling mode.
4. The on-line cleaning method for the excitation coil of the high-gradient magnetic separator as recited in claim 1, is characterized in that: in the step d, the spraying pressure of the cleaning liquid is 0.2-0.4 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698159.0A CN111790519A (en) | 2020-07-20 | 2020-07-20 | Online cleaning method for excitation coil of high-gradient magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698159.0A CN111790519A (en) | 2020-07-20 | 2020-07-20 | Online cleaning method for excitation coil of high-gradient magnetic separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111790519A true CN111790519A (en) | 2020-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010698159.0A Pending CN111790519A (en) | 2020-07-20 | 2020-07-20 | Online cleaning method for excitation coil of high-gradient magnetic separator |
Country Status (1)
| Country | Link |
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| CN (1) | CN111790519A (en) |
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Application publication date: 20201020 |
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