Exciting coil cleaning structure of vertical ring high-gradient magnetic separator

Abstract

The utility model relates to the technical field of magnetic separator exciting coil cleaning, in particular to a vertical ring high gradient magnetic separator exciting coil cleaning structure which comprises a magnetic separator exciting coil, a cooling coil is arranged in the magnetic separator exciting coil and is a hollow copper pipe, two ends of the cooling coil are communicated through a communicating pipe, and the communicating pipe is communicated with the cooling coil. A water inlet is fixedly connected to the middle of the communicating pipe, a plurality of valves are arranged on the communicating pipe, the flow direction of water in the cooling coil is controlled through the valves, a pump body is arranged on one side of the magnetic separator exciting coil, and water is introduced into the cooling coil through the pump body. The cooling coil has the advantages that when the water outlet pipe is used for flushing water to the water inlet, the flow direction of high-pressure water in the cooling coil can be changed through the valve, so that the water is discharged from different ends of the communicating pipe, impurities in the cooling coil can be flushed from different directions, and the cleaning effect is improved. The water inlet pipe does not need to be dismounted and mounted repeatedly, the cleaning period is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning the exciting coil of a magnetic separator, in particular to a cleaning structure of the exciting coil of a vertical ring high gradient magnetic separator. Background Art

[0002] The vertical ring high gradient magnetic separator is one of the important equipment for the separation of fine-grained weak magnetic minerals. It is mainly composed of a magnetic system part, a coil part, a rotating ring part, a frame pulsating part, and an ore feeding and unloading part. The magnetic system part and the coil part are the key parts for generating the magnetic field, among which the coil part is the excitation source of the background magnetic field. In the process of converting electrical energy into magnetic energy, a large amount of heat energy is released, and the coil temperature continues to rise. The increase in coil temperature not only leads to an increase in coil resistivity, a decrease in effective current, and a decrease in magnetic field strength, but also easily destroys the insulating layer on the surface of the coil, thereby damaging the coil. Therefore, it is necessary to adopt appropriate coil cooling methods to control the coil temperature within a reasonable range. There are three main coil cooling methods for vertical ring high gradient magnetic separators: hollow copper tube water cooling, copper bar interlayer water cooling and copper bar oil immersion cooling. Among them, hollow copper tube water cooling coil technology is the most mature and widely used method. The hollow copper tube water cooling coil is a multi-layer structure wound by hollow copper tubes. A certain pressure of cooling water (domestic water or production water) is introduced into one end of each coil layer, and flows out of the other end of the coil along the copper tube winding line. The water contacts the inner wall of the copper tube to absorb and take away the heat, so as to achieve the heat generation of the coil and the water Take away the balance of heat. The common hollow copper tube water-cooled coil is composed of 6 layers of coils. Every two layers form a group of water channels, one in and one out, with a total of three groups of parallel water channels. The cooling medium of the hollow copper tube water-cooled coil is water. This cooling method only needs to connect the coil to the water source with a pipe. The cooling water flows in the copper tube and is separated from the insulation layer outside the copper tube. The cooling effect is good, but this coil cooling method also has disadvantages: water flows in the copper tube for a long time, and the three major problems of corrosion, scaling, and mud in the water system are inevitable. If the water quality management is not good, impurities in the water are easy to block the copper tube water channel, causing poor water flow, and the problem is more serious and frequent. The heat dissipation capacity of the coil decreases, which will cause the coil temperature to rise, the coil resistivity to rise, the effective current to decrease, and the magnetic field strength to decrease, thereby affecting the work of the magnetic separator. In severe cases, the flow capacity of the coil copper tube will decrease or even become blocked, the cooling effect will be weakened or even lost, and the insulation layer on the surface of the coil will be destroyed, thereby damaging the coil and causing the magnetic separator to fail to work properly. Therefore, it is necessary to flush the pipeline, and for severely blocked copper tubes or scale deposited in the elbows that has been peeled off, flushing with a circulating pump, supplemented by manual dredging, often requires a lot of manpower and time, and the effect is not very good. Utility Model Content

[0003] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0004] To this end, one purpose of the utility model is to propose a vertical ring high gradient magnetic separator exciting coil cleaning structure to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a vertical ring high gradient magnetic separator excitation coil cleaning structure, including a magnetic separator excitation coil, a cooling coil is arranged inside the magnetic separator excitation coil, the cooling coil is a hollow copper tube, the two ends of the cooling coil are connected by a connecting pipe, the middle of the connecting pipe is fixedly connected with a water inlet, and a plurality of valves are arranged on the connecting pipe, and the flow direction of water in the cooling coil is controlled by the valves;

[0006] A pump body is arranged on one side of the exciting coil of the magnetic separator, and water flows into the interior of the cooling coil through the pump body.

[0007] Preferably, any of the above schemes is that the cooling coil is arranged in a spiral shape inside the exciting coil of the magnetic separator, and the exciting coil of the magnetic separator is arranged vertically.

[0008] Preferably, any of the above schemes is that one end of the cooling coil is fixedly connected to a first connecting pipe, and one end of the first connecting pipe away from the cooling coil extends to the outside of the exciting coil of the magnetic separator;

[0009] The other end of the cooling coil is fixedly connected to a second connecting pipe, and one end of the second connecting pipe away from the cooling coil extends to the outside of the magnetic separator excitation coil; the ends of the first connecting pipe and the second connecting pipe are both fixedly connected to the connecting pipe.

[0010] Preferably, any of the above schemes is that a water inlet pipe is installed at the input end of the pump body, a water outlet pipe is installed at the output end of the pump body, and the water outlet pipe is connected to the water inlet via a water pipe joint.

[0011] Preferably, any of the above schemes comprises a first valve, a second valve, a third valve and a fourth valve, the first valve being located between the first end of the connecting pipe and the second connecting pipe, the second valve being located between the second connecting pipe and the water inlet, the third valve being located between the water inlet and the first connecting pipe, and the fourth valve being located between the second end of the connecting pipe and the first connecting pipe.

[0012] Preferably, any of the above schemes is that the water outlet pipe is a high-pressure hose, and a pressure unit is connected to the water outlet pipe, so that the water in the water outlet pipe is pressurized by the pressure unit.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] The vertical ring high gradient magnetic separator exciting coil cleaning structure is provided with a connecting pipe, and the connecting pipe is provided with a first valve, a second valve, a third valve, and a fourth valve. The first valve can change the flow direction of high-pressure water in the cooling coil through the valve when the outlet pipe is used to flush water to the water inlet, so that the water is discharged from different ends of the connecting pipe, and the impurities in the cooling coil can be flushed from different directions, thereby improving the cleaning effect. In addition, there is no need to disassemble and install the water inlet pipe multiple times, shortening the cleaning period and improving work efficiency.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the connecting pipe of the utility model.

[0019] In the figure: 1. magnetic separator excitation coil; 2. cooling coil; 3. first connecting pipe; 4. second connecting pipe; 5. connecting pipe; 6. pump body; 7. water outlet pipe; 8. water inlet pipe; 9. water inlet; 10. first valve; 11. second valve; 12. third valve; 13. fourth valve. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1-2As shown, a vertical ring high gradient magnetic separator excitation coil cleaning structure of the utility model embodiment includes a magnetic separator excitation coil 1, and a cooling coil 2 is arranged inside the magnetic separator excitation coil 1, and the cooling coil 2 is a hollow copper tube. The two ends of the cooling coil 2 are connected through a connecting pipe 5. The middle part of the connecting pipe 5 is fixedly connected with a water inlet 9. A plurality of valves are arranged on the connecting pipe 5, and the flow direction of water in the cooling coil 2 is controlled by the valves.

[0023] A pump body 6 is provided on one side of the exciting coil 1 of the magnetic separator, and water flows into the interior of the cooling coil 2 through the pump body 6 .

[0024] The input end of the pump body 6 is provided with a water inlet pipe 8, and the output end of the pump body 6 is provided with a water outlet pipe 7, and the water outlet pipe 7 is connected to the water inlet 9 through a water pipe joint. The water inlet pipe 8 is a hose.

[0025] The water outlet pipe 7 is a high-pressure hose, and a pressure unit is connected to the water outlet pipe 7, and the water in the water outlet pipe 7 is pressurized by the pressure unit. The water outlet pressure can be increased, and the flushing effect on the cooling coil 2 is better.

[0026] The cooling coil 2 is spirally arranged inside the magnetic separator exciting coil 1, and the magnetic separator exciting coil 1 is arranged vertically. The contact area between the cooling coil 2 and the magnetic separator exciting coil 1 is increased, so as to better cool the magnetic separator exciting coil 1.

[0027] One end of the cooling coil 2 is fixedly connected to a first connecting pipe 3 , and one end of the first connecting pipe 3 away from the cooling coil 2 extends to the outside of the exciting coil 1 of the magnetic separator.

[0028] The other end of the cooling coil 2 is fixedly connected to a second connecting pipe 4, and one end of the second connecting pipe 4 away from the cooling coil 2 extends to the outside of the magnetic separator excitation coil 1. The ends of the first connecting pipe 3 and the second connecting pipe 4 are both fixedly connected to the connecting pipe 5. The ends of the first connecting pipe 3 and the second connecting pipe 4 are connected to the inner cavity of the connecting pipe 5.

[0029] The valves include a first valve 10, a second valve 11, a third valve 12, and a fourth valve 13. The first valve 10 is located between the first end of the connecting pipe 5 and the second connecting pipe 4. The second valve 11 is located between the second connecting pipe 4 and the water inlet 9. The third valve 12 is located between the water inlet 9 and the first connecting pipe 3. The fourth valve 13 is located between the second end of the connecting pipe 5 and the first connecting pipe 3.

[0030] The working principle of the utility model is as follows: when the cooling coil 2 needs to be flushed, the water outlet pipe 7 and the water inlet 9 are connected through a water pipe joint. One end of the water inlet pipe 8 is connected to a water source.

[0031] When the water in the cooling coil 2 needs to be discharged from the second connecting pipe 4 , the first valve 10 and the third valve 12 are opened, and the second valve 11 and the fourth valve 13 are closed.

[0032] Start the pump body 6, and pass the water source at the water inlet pipe 8 into the water outlet pipe 7. The pressure unit pressurizes the water, and the high-pressure water enters the connecting pipe 5, enters the interior of the first connecting pipe 3 through the third valve 12, and enters the interior of the cooling coil 2. The high-pressure water will flush the interior of the cooling coil 2, and the flushed water enters the interior of the second connecting pipe 4, and then is discharged through the first valve 10.

[0033] When the water in the cooling coil 2 needs to be discharged from the first connecting pipe 3 , the second valve 11 and the fourth valve 13 are opened, and the first valve 10 and the third valve 12 are closed.

[0034] At this time, the water in the connecting pipe 5 will enter the interior of the cooling coil 2 through the second connecting pipe 4, and the flushed water will enter the interior of the first connecting pipe 3 and then be discharged through the fourth valve 13.

[0035] The flow direction of the high-pressure water in the cooling coil 2 can be changed by a valve, and impurities in the cooling coil 2 can be flushed from different directions, thereby improving the cleaning effect.

[0036] After flushing, the flushing water is drained, and cooling water can be introduced into the cooling coil 2 from the first connecting pipe 3 or the second connecting pipe 4 as needed to perform cooling operation.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical ring high gradient magnetic separator exciting coil cleaning structure, characterized in that: The invention comprises a magnetic separator excitation coil (1), wherein a cooling coil (2) is arranged inside the magnetic separator excitation coil (1), the cooling coil (2) is a hollow copper tube, the two ends of the cooling coil (2) are connected via a connecting pipe (5), the middle of the connecting pipe (5) is fixedly connected with a water inlet (9), and the connecting pipe (5) is provided with a plurality of valves, and the flow direction of water in the cooling coil (2) is controlled by the valves; A pump body (6) is provided on one side of the magnetic separator excitation coil (1), and water flows into the interior of the cooling coil (2) through the pump body (6).

2. A vertical ring high gradient magnetic separator exciting coil cleaning structure as claimed in claim 1, characterized in that: The cooling coil (2) is arranged in a spiral shape inside the magnetic separator exciting coil (1), and the magnetic separator exciting coil (1) is arranged vertically.

3. A vertical ring high gradient magnetic separator exciting coil cleaning structure as claimed in claim 1, characterized in that: One end of the cooling coil (2) is fixedly connected to a first connecting pipe (3), and one end of the first connecting pipe (3) away from the cooling coil (2) extends to the outside of the magnetic separator exciting coil (1); The other end of the cooling coil (2) is fixedly connected to a second connecting pipe (4), and one end of the second connecting pipe (4) away from the cooling coil (2) extends to the outside of the magnetic separator excitation coil (1); the ends of the first connecting pipe (3) and the second connecting pipe (4) are both fixedly connected to the connecting pipe (5).

4. A vertical ring high gradient magnetic separator exciting coil cleaning structure as claimed in claim 1, characterized in that: The input end of the pump body (6) is provided with a water inlet pipe (8), the output end of the pump body (6) is provided with a water outlet pipe (7), and the water outlet pipe (7) is connected to the water inlet (9) via a water pipe joint.

5. The vertical ring high gradient magnetic separator exciting coil cleaning structure as claimed in claim 1, characterized in that: The valves comprise a first valve (10), a second valve (11), a third valve (12), and a fourth valve (13); the first valve (10) is located between a first end of the connecting pipe (5) and the second connecting pipe (4); the second valve (11) is located between the second connecting pipe (4) and the water inlet (9); the third valve (12) is located between the water inlet (9) and the first connecting pipe (3); and the fourth valve (13) is located between the second end of the connecting pipe (5) and the first connecting pipe (3).

6. A vertical ring high gradient magnetic separator exciting coil cleaning structure as claimed in claim 4, characterized in that: The water outlet pipe (7) is a high-pressure hose, and a pressure unit is connected to the water outlet pipe (7), and the water in the water outlet pipe (7) is pressurized by the pressure unit.

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