CN216500019U - Heavy medium magnetic separation device capable of realizing automatic control - Google Patents
Heavy medium magnetic separation device capable of realizing automatic control Download PDFInfo
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- CN216500019U CN216500019U CN202122839386.3U CN202122839386U CN216500019U CN 216500019 U CN216500019 U CN 216500019U CN 202122839386 U CN202122839386 U CN 202122839386U CN 216500019 U CN216500019 U CN 216500019U
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Abstract
The utility model discloses a dense medium magnetic separation device capable of realizing automatic control, which comprises a dilute medium barrel, a dilute medium pump, a magnetic separator, a tailing tank, an automatic regulating valve, an infrared photoelectric sensor, an infrared grating sensor, a display and a controller. The utility model has the advantages that: the magnetic separator has a simple structure, is easy to realize, effectively improves the recovery rate of the magnetite powder, and avoids the damage of the magnetic separator; the situation of the occurrence of the running-in is avoided.
Description
The technical field is as follows:
the utility model relates to a magnetic separation device, in particular to a heavy medium magnetic separation device capable of realizing automatic control.
Background art:
in the heavy medium washing process in the coal processing process, the heavy medium consumption is an important technical and economic index, which accounts for about 15% of the processing cost, and not only is the stability of a production system concerned, but also the economic benefit of the whole plant is influenced. Suspension liquid prepared by magnetite powder and water is mainly used as a dense medium for coal dressing at home and abroad. The recovery of the heavy medium of the magnetite powder is mainly carried out from the dilute suspension liquid through a magnetic separator, and the working state of the magnetic separator has great influence on the recovery rate and loss of the magnetite powder. The efficiency of the magnetic separator is slightly reduced, and the loss of the magnetite powder can be increased by dozens of times, so that the effective management and control of the working state of the magnetic separator are of great importance to the production and operation of the coal preparation plant.
In the actual production process: due to the problems of upstream equipment, the concentration of a fed material in the magnetic separator is suddenly increased, so that a grate of a material box of the magnetic separator is blocked, the feeding amount of the magnetic separator is reduced, and overflow and cutoff of the magnetic separator are easily caused; meanwhile, if small pieces of coal gangue enter the magnetic separator, the coal gangue can enter the underflow box, so that the underflow valve is extremely easy to block, and the underflow box is full; at present, only manual inspection is carried out, and then post inspection workers are very easy to find that a feed box of a magnetic separator is blocked in time, so that a dilute medium overflows from the feed box, one part of the dilute medium directly flows out of the ground, the other part of the dilute medium flows into a concentrate box, and the dilute medium is directly washed into a coal slime barrel at the later stage after flowing to the ground, so that magnetite powder cannot be recovered, the recovery rate of the magnetite powder is reduced, and the loss of the magnetite powder is increased; the flow into the concentrate box dilutes the recovered media, resulting in a decrease in media concentration, which in turn affects the efficiency of coal separation.
Meanwhile, if the blockage of the underflow valve of the magnetic separator is not found in time, the recovery rate of the magnetic separator is reduced, and the magnetic separator is damaged; the magnetic separator normally operates, the dilute medium barrel and the dilute medium pump normally operate, the opening degree of an underflow valve of the conventional magnetic separator cannot be reasonably controlled, and further, if the opening degree of the underflow valve is too large, the magnetic separator does not have overflow medium leakage; the underflow valve is easy to block when the opening degree is too small, so that the overflow of the magnetic separator is too large to cause medium leakage.
The utility model has the following contents:
the utility model aims to provide a dense medium magnetic separation device which is simple in structure and capable of improving the recovery rate of magnetite powder and realizing automatic control.
The utility model is implemented by the following technical scheme: the patent aims at providing a dense medium magnetic separation device capable of realizing automatic control, which comprises a dilute medium barrel, a dilute medium pump, a magnetic separator, a tailing tank, an automatic regulating valve, an infrared photoelectric sensor, an infrared grating sensor, a display and a controller; the discharge hole of the dilute medium barrel is communicated with the feed inlet of the dilute medium pump, and the discharge hole of the dilute medium pump is communicated with the feed inlet of a feed box of the magnetic separator; the tailings box with an open top is arranged below the discharge holes of the underflow box and the overflow box of the magnetic separator; the automatic regulating valve is arranged at the discharge hole of the underflow box, and the infrared photoelectric sensor is arranged in the discharge hole of the underflow box below the automatic regulating valve; the infrared grating sensor is arranged at the feed inlet of the overflow box; the signal output ends of the infrared photoelectric sensor and the infrared grating sensor are communicated with the signal input end of the controller, and the signal output end of the controller is communicated with the signal input ends of the automatic regulating valve and the display respectively.
Further, the infrared photoelectric sensor comprises a photoelectric emission end and a photoelectric receiving end, and the photoelectric emission end and the photoelectric receiving end are correspondingly fixed in a discharge port of the underflow box; and first baffle plates are horizontally arranged in the discharge ports of the underflow box above the photoelectric emission end and the photoelectric receiving end respectively.
Furthermore, the infrared grating sensor comprises a grating transmitting end and a grating receiving end, the grating transmitting end and the grating receiving end are correspondingly fixed in the feed inlet of the overflow box, and a second baffle is arranged above the grating transmitting end or the grating receiving end close to one side of the underflow box.
Further, the magnetic separator comprises a rack, a separation groove, a magnetic separation roller, a driving device, a concentrate box, the feed box, a scraper blade, the underflow box and the overflow box; the rack is fixedly provided with an arc-shaped separation groove, the rack above the separation groove is rotatably provided with the magnetic separation roller concentric with the separation groove, and the rack is provided with the driving device in transmission connection with the magnetic separation roller; the concentrate box and the feed box are fixedly arranged at the feed end of the separation groove in sequence, the feed box is communicated with the separation groove through a plurality of feed pipes, and the feed pipes penetrate through the concentrate box; the scraper is fixed on the rack above the concentrate box, and one side of the scraper is in contact with the surface of the magnetic separation roller; the discharge end of the separation groove is sequentially and fixedly provided with the underflow box and the overflow box.
The utility model has the advantages that: 1. the automatic regulating valve and the infrared photoelectric sensor are arranged at the discharge port of the underflow box, the infrared grating sensor is arranged at the feed port of the overflow box, the infrared photoelectric sensor constantly monitors whether a material flows out of the discharge port of the underflow box or not, and transmits a signal to the controller, when no material flows out, the controller controls the automatic regulating valve to be opened greatly, and when no material flows out, the controller controls the display to display blockage, so that a worker can be quickly prompted to check the equipment, the obstacle is eliminated, the recovery rate of the magnetite powder is effectively improved, and the damage of the magnetic separator is avoided; 2. the infrared grating sensor constantly monitors whether a material flows into the material inlet of the overflow box or not, and transmits a signal to the controller, and when the material does not flow into the material inlet, the controller controls the opening of the automatic regulating valve to be small; the situation of the occurrence of the running-in is avoided.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of fig. 1.
The device comprises a dilute medium barrel 1, a dilute medium pump 2, a magnetic separator 3, a rack 31, a separation tank 32, a magnetic separation roller 33, a driving device 34, a concentrate tank 35, a feeding tank 36, a scraper 37, an underflow tank 38, an overflow tank 39, a tailing tank 4, an automatic regulating valve 5, an infrared photoelectric sensor 6, a photoelectric emission end 61, a photoelectric receiving end 62, an infrared grating sensor 7, a grating emission end 71, a grating receiving end 72, a display 8, a controller 9, a first baffle 10 and a second baffle 11.
The specific implementation mode is as follows:
as shown in fig. 1-2, a dense medium magnetic separation device for realizing automatic control comprises a dilute medium barrel 1, a dilute medium pump 2, a magnetic separator 3, a tailing tank 4, an automatic regulating valve 5, an infrared photoelectric sensor 6, an infrared grating sensor 7, a display 8 and a controller 9; the discharge hole of the dilute medium barrel 1 is communicated with the feed inlet of the dilute medium pump 2, and the discharge hole of the dilute medium pump 2 is communicated with the feed inlet of a feed box 36 of the magnetic separator 3; a tailing tank 4 with an open top is arranged below the discharge holes of the underflow tank 38 and the overflow tank 39 of the magnetic separator 3; an automatic regulating valve 5 is arranged at the discharge port of the underflow box 38, and an infrared photoelectric sensor 6 is arranged in the discharge port of the underflow box 38 below the automatic regulating valve 5; an infrared grating sensor 7 is arranged at a feed inlet of the overflow box 39; the signal output ends of the infrared photoelectric sensor 6 and the infrared grating sensor 7 are communicated with the signal input end of the controller 9, and the signal output end of the controller 9 is communicated with the signal input ends of the automatic regulating valve 5 and the display 8 respectively.
The infrared photoelectric sensor 6 comprises a photoelectric emission end 61 and a photoelectric receiving end 62, and the photoelectric emission end 61 and the photoelectric receiving end 62 are correspondingly fixed in the discharge port of the underflow box 38; a first baffle 10 is horizontally disposed in the discharge opening of underflow box 38 above photoemissive end 61 and photoemissive end 62, respectively.
The infrared grating sensor 7 comprises a grating emission end 71 and a grating receiving end 72, the grating emission end 71 and the grating receiving end 72 are correspondingly fixed in the feed inlet of the overflow tank 39, and a second baffle plate 11 is arranged above the grating emission end 71 or the grating receiving end 72 on the side close to the underflow tank 38.
The magnetic separator 3 comprises a frame 31, a separation groove 32, a magnetic separation roller 33, a driving device 34, a concentrate box 35, a feeding box 36, a scraping plate 37, an underflow box 38 and an overflow box 39; an arc-shaped separation groove 32 is fixed on the frame 31, a magnetic separation roller 33 concentric with the separation groove 32 is rotatably arranged on the frame 31 above the separation groove 32, and a driving device 34 in transmission connection with the magnetic separation roller 33 is arranged on the frame 31; a concentrate box 35 and a feeding box 36 are fixedly arranged at the feeding end of the separation groove 32 in sequence, the feeding box 36 is communicated with the separation groove 32 through a plurality of feeding pipes, and the feeding pipes are arranged in the concentrate box 35 in a penetrating manner; a scraper 37 is fixed on the frame 31 above the concentrate box 35, and one side of the scraper 37 is in contact with the surface of the magnetic separation roller 33; an underflow box 38 and an overflow box 39 are fixedly arranged in sequence at the discharge end of the separation tank 32.
The material solution in the feeding box 36 is fed into the separation tank 32 through a feeding pipe, the magnetite powder in the material solution is adsorbed on the surface of the material solution by the rotating magnetic separation roller 33, the magnetite powder on the surface of the magnetic separation roller 33 is scraped by the scraper 37 and then falls into the concentrate box 35 to realize the recovery of the magnetite powder, the material solution in the separation tank 32 flows into the underflow box 38 from the discharge end thereof, the magnetite powder which is not adsorbed in the underflow box 38 floats above the waste liquid, in the process of rising to the feed inlet of the overflow box 39 along with the liquid level of the waste liquid, under the action of the rising waste liquid, the waste material and the magnetite powder are separated, the magnetite powder is adsorbed on the surface of the magnetic separation roller 33, the waste material in the underflow box 38 flows out to the tailing box 4 from the bottom of the underflow box 38 along with the waste liquid, the waste liquid adsorbed by the magnetic separation roller 33 overflows to the overflow box 39 and flows into the tailing box 4 from the discharge outlet at the bottom of the overflow box 39, the recovery process of the magnetite powder is completed.
The working principle is as follows:
before the washing and dressing system is just producing and taking off a car, the magnetic separator 3 is started, at the moment, the automatic regulating valve 5, the infrared photoelectric sensor 6, the infrared grating sensor 7, the display 8 and the controller 9 are all started, then the dilute medium pump 2 is started, in the starting process of the dilute medium pump 2, the infrared photoelectric sensor 6 monitors whether a material flows out from a discharge hole of the underflow box 38 or not at any time, and transmits a signal to the controller 9, when the material flows out is not monitored, the controller 9 transmits the signal to the display 8, and the display 8 displays material blockage; the infrared grating sensor 7 constantly monitors whether materials flow into the material inlet of the overflow box 39 or not, and transmits signals to the controller 9, the controller 9 transmits the signals to the display 8, when the materials do not flow into the material inlet, the controller 9 transmits the signals to the display 8, and the display 8 displays the material breakage; therefore, if the display 8 does not display the blockage, the dilute medium pump 2 is used for normally feeding, the discharge hole of the underflow box 38 of the magnetic separator 3 is unblocked, if the dilute medium pump 2 is started and the display 8 displays the blockage, a post inspector is timely informed to check whether the feed box 36 of the magnetic separator 3 is blocked, if the feed box 36 of the magnetic separator 3 does not have the material, the dilute medium pump 2 is used for not feeding or the feeding frequency is too low, the operation frequency of the dilute medium pump 2 is reasonably adjusted until the blockage is not displayed, the obstacle is quickly eliminated, the recovery rate of the magnetite powder is effectively improved, the damage of the magnetic separator 3 is avoided, and if the display 8 does not display the blockage for a period of time, the display 8 does not display the blockage, the magnetic separator 3 is used for normally running without adjustment. If the display 8 does not display the material blockage after the dilute medium pump 2 is started, the operation frequency is normal, and the display 8 displays the material breakage, the controller 9 controls the automatic regulating valve 5 to be turned off until the material breakage is not displayed, and at this time, the operation of the magnetic separator 3 is normal.
In the normal operation of the washing and separating system, when the position of the dilute medium barrel 1 is normal and the frequency of the dilute medium pump 2 is normal, if the material break occurs in the display 8, the controller 9 controls the automatic regulating valve 5 to be turned off, and then the display 8 does not display the material break any more, the magnetic separator 3 operates normally; if the display 8 is blocked, the controller 9 controls the automatic regulating valve 5 to be opened to be large, then the display 8 does not display the blocked materials any more, the magnetic separator 3 operates normally, and if the display 8 still displays the blocked materials, it is indicated that the incoming material box 36 of the magnetic separator 3 is blocked and needs to be checked and processed on site.
When the washing and selecting system normally operates, when the display 8 displays blockage, the controller 9 controls the automatic regulating valve 5 to be opened to be large, and if the blockage is not displayed any more, the discharge hole of the underflow box 38 is smooth; at this time, if the display 8 displays material breakage, it is indicated that the opening degree of the automatic regulating valve 5 is too large, the controller 9 controls the automatic regulating valve 5 to be turned off, and the display 8 does not display material breakage and material blockage, so that automatic control is realized, and the occurrence of medium leakage is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A dense medium magnetic separation device capable of realizing automatic control is characterized by comprising a dilute medium barrel, a dilute medium pump, a magnetic separator, a tailing tank, an automatic regulating valve, an infrared photoelectric sensor, an infrared grating sensor, a display and a controller;
the discharge hole of the dilute medium barrel is communicated with the feed inlet of the dilute medium pump, and the discharge hole of the dilute medium pump is communicated with the feed inlet of a feed box of the magnetic separator;
the tailings box with an open top is arranged below the discharge holes of the underflow box and the overflow box of the magnetic separator;
the automatic regulating valve is arranged at the discharge hole of the underflow box, and the infrared photoelectric sensor is arranged in the discharge hole of the underflow box below the automatic regulating valve; the infrared grating sensor is arranged at the feed inlet of the overflow box;
the signal output ends of the infrared photoelectric sensor and the infrared grating sensor are communicated with the signal input end of the controller, and the signal output end of the controller is communicated with the signal input ends of the automatic regulating valve and the display respectively.
2. The device for realizing the automatic control of the magnetic separation of the dense media according to claim 1, wherein the infrared photoelectric sensor comprises a photoelectric emitting end and a photoelectric receiving end, and the photoelectric emitting end and the photoelectric receiving end are correspondingly fixed in a discharge port of the underflow box; and first baffle plates are horizontally arranged in the discharge ports of the underflow box above the photoelectric emission end and the photoelectric receiving end respectively.
3. The device for realizing automatically controlled magnetic separation of dense media according to claim 1, wherein the infrared grating sensor comprises a grating emitting end and a grating receiving end, the grating emitting end and the grating receiving end are correspondingly fixed in the feed inlet of the overflow tank, and a second baffle is arranged above the grating emitting end or the grating receiving end near one side of the underflow tank.
4. The heavy medium magnetic separation device achieving automatic control according to any one of claims 1 to 3, characterized in that the magnetic separator comprises a frame, a separation tank, a magnetic separation roller, a driving device, a concentrate box, the incoming material box, a scraper, the underflow box and the overflow box;
the rack is fixedly provided with an arc-shaped separation groove, the rack above the separation groove is rotatably provided with the magnetic separation roller concentric with the separation groove, and the rack is provided with the driving device in transmission connection with the magnetic separation roller;
the concentrate box and the feed box are fixedly arranged at the feed end of the separation groove in sequence, the feed box is communicated with the separation groove through a plurality of feed pipes, and the feed pipes penetrate through the concentrate box; the scraper is fixed on the rack above the concentrate box, and one side of the scraper is in contact with the surface of the magnetic separation roller;
the discharge end of the separation groove is sequentially and fixedly provided with the underflow box and the overflow box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122839386.3U CN216500019U (en) | 2021-11-18 | 2021-11-18 | Heavy medium magnetic separation device capable of realizing automatic control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122839386.3U CN216500019U (en) | 2021-11-18 | 2021-11-18 | Heavy medium magnetic separation device capable of realizing automatic control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216500019U true CN216500019U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122839386.3U Active CN216500019U (en) | 2021-11-18 | 2021-11-18 | Heavy medium magnetic separation device capable of realizing automatic control |
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|---|---|
| CN (1) | CN216500019U (en) |
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2021
- 2021-11-18 CN CN202122839386.3U patent/CN216500019U/en active Active
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