CN219923289U - Major diameter flotation column tailing discharging device - Google Patents
Major diameter flotation column tailing discharging device Download PDFInfo
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- CN219923289U CN219923289U CN202320518987.0U CN202320518987U CN219923289U CN 219923289 U CN219923289 U CN 219923289U CN 202320518987 U CN202320518987 U CN 202320518987U CN 219923289 U CN219923289 U CN 219923289U
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- 238000007599 discharging Methods 0.000 title claims abstract description 79
- 238000005188 flotation Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a large-diameter flotation column tailing discharging device, and belongs to the technical field of flotation; the large-diameter flotation column tailing discharging device consists of a lower cone (1), a discharging pipe I (2), a discharging pipe II (3), a tailing discharging pipe (4), an electric valve (5), a discharging vertical pipe (6) and a tailing barrel (7); the method is characterized in that: the upper end of the lower cone (1) is connected with the side wall of the column body, and the lower end of the lower cone (1) is connected with the bottom plate of the column body; the two discharging pipes I (2) are arranged in number, one end of each discharging pipe I (2) is tangentially connected with the lower cone (1), and the other ends of the two discharging pipes I (2) are connected with one end of the discharging pipe II (3); the other ends of the two discharging pipes II (3) are connected with a discharging vertical pipe (6) after being converged; the lower end of the discharging vertical pipe (6) is provided with a tailing discharging pipe (4) and an electric valve (5); the beneficial effects are that: the tailings are discharged in time, so that the problem of blockage of a tailings discharging pipe and the problem of dead zone of tailings at the bottom of a column body are solved.
Description
Technical Field
The utility model relates to a large-diameter flotation column tailing discharging device, and belongs to the technical field of flotation.
Background
The working principle of the flotation column is as follows: the feeding ore pulp fully mixed with the medicament is evenly distributed on the section of the column body and is fully collided with the rising microbubbles in countercurrent, lighter clean coal overflows from the overflow weir above, heavier tailings are discharged from the tailing barrel through the bottom discharge pipe, middling pulp is conveyed to the distributor above from the middle part of the column body through the circulating pump, the middling pulp is respectively conveyed to the bottom through the plurality of branch pipes by the distributor to form a rotational flow force field, lighter clean coal rises in a rotational flow way, the gravity of heavier tailings falls to the bottom of the cone, enters the tailing discharge pipe through static pressure, and is discharged to the tailing barrel. The structure of the tailing discharging device is critical, ash content of flotation concentrate is directly determined, and the heating value and price of clean coal are directly influenced.
The structure of the existing flotation column tailing discharging device is as follows: the device is provided with a tailing pipe, an elbow, a vertical pipe and a tailing barrel, and has the following problems: 1) Only one tailing pipe is used for discharging, the distance between materials opposite to the bottom of the column body is far, the materials are easy to deposit and accumulate to form dead areas, the tailing discharge is influenced, the ash content of the flotation concentrate is high, the quality of the flotation concentrate is seriously influenced, and the ash content of the flotation concentrate exceeds 11%; 2) The elbow is easy to precipitate and block, the cleaning is very difficult (the production is stopped for more than 1 hour), the labor intensity is high, the production is directly affected, and the economic loss is serious; 3) Each flotation column is 15 tons less in one hour and 180 tons less in one year according to 1 hour of production stopping per month, the sales price of each ton of clean coal is 1000 yuan, production stopping is caused by faults, and each flotation column in a coal preparation plant directly has economic loss of 18 ten thousands yuan per year.
The utility model patent of application number CN201410267254.X, "a large diameter flotation column middling cyclone device and tailing cyclone discharging device" discloses a tailing cyclone discharging device, mainly has the problem: 1) By adopting the tailing discharging pipe, the discharging is not timely, and the tailing is easy to deposit at the position of the bottom of the cone far away from the inlet; 2) The tailings flow slowly, are easy to block in a tailings discharging pipe, a tailings discharging vertical pipe and a tailings barrel, and are difficult to clean once blocked; 3) The structure is applied to a large-diameter flotation column, and the bottom discharge pipe is more seriously blocked; on the other hand, the tailings at the bottom of the column body have a dead zone, and part of tailings cannot be discharged in time, so that the flotation effect is directly affected.
In addition, the maintenance time of a coal preparation plant is generally about 2 hours every day, after a flotation column is stopped, ore pulp in the column is discharged from a discharge hole of a tailing barrel under the action of gravity, the ore pulp in the column cannot be discharged after the liquid level of the ore pulp in the column is consistent with the lowest point of the discharge hole of the tailing barrel, coarse particles are easy to deposit at the bottom of the column for a long time, and the bottom is blocked or the flotation performance is influenced.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a large-diameter flotation column tailing discharging device.
The utility model relates to a tailing discharging device of a large-diameter flotation column, which consists of a lower cone 1, a discharging pipe I2, a discharging pipe II 3, a tailing discharging pipe 4, an electric valve 5, a discharging vertical pipe 6 and a tailing barrel 7; the method is characterized in that: the upper end of the lower cone 1 is connected with the side wall of the column body, and the lower end of the lower cone 1 is connected with the bottom plate of the column body; the two discharging pipes I2 are arranged, one ends of the two discharging pipes I2 are respectively connected with the lower cone 1 in a tangential manner, and the other ends of the two discharging pipes I2 are connected with one end of the discharging pipe II 3; the other ends of the two discharging pipes II 3 are connected with the discharging vertical pipe 6 after being converged; the upper end of the discharging vertical pipe 6 is connected with a tailing barrel 7, and the lower end of the discharging vertical pipe 6 is provided with a tailing discharging pipe 4 and an electric valve 5.
The main function of the lower cone 1 is as follows: the bottom storage area is reduced, the storage height of tailings is improved, and the tailings can be discharged in time; the lower cone 1 is arranged on the lower side of the middling feeding pipe, spirally descends to tailings at the bottom of the column body according to a certain angle, forms a rotational flow state on the lower cone 1, solves the problem of dead zone of tailings at the bottom of the column body, and timely discharges the tailings from the discharging pipe I2.
Two discharging pipes I2 quantity, one end is connected with lower cone 1 tangential respectively, its main functions: solving the problem of blockage of a tailing discharging pipe; the tailings automatically flow to the tailings barrel by the self pressure of the column pulp and are discharged in time, so that the problems of blockage of a tailings discharging pipe and dead zone of tailings at the bottom of the column are further solved.
The inclination angle of the discharging pipe I2 is theta, and the theta angle is 15 degrees; the horizontal included angle of the two discharging pipes I2 is delta, and the delta angle is 45 degrees.
The lower end of the discharging standpipe 6 is provided with a tailing discharging pipe 4 and an electric valve 5, and the main functions of the tailing discharging pipe are as follows: when the machine is stopped for maintenance, the electric valve 5 is controlled to be opened periodically, closed regularly and intermittently, and the problem of deposition at the bottom of the cylinder is solved.
The beneficial effects of the utility model are as follows: the tailings are discharged in time, so that the problem of blockage of a tailings discharging pipe and the problem of dead zone of tailings at the bottom of a column body are solved.
Drawings
FIG. 1 is a front view of a large diameter flotation column reject discharge apparatus of the present utility model; fig. 2 is a top view of a large diameter flotation column reject discharge apparatus of the present utility model, wherein: 1-lower cone, 2-discharge pipe I, 3-discharge pipe II, 4-tailing discharge pipe, 5-electric valve, 6-discharge vertical pipe and 7-tailing barrel.
Detailed Description
1. As shown in fig. 1 and 2, the tailing discharging device of the large-diameter flotation column consists of a lower cone 1, a discharging pipe I2, a discharging pipe II 3, a tailing discharging pipe 4, an electric valve 5, a discharging vertical pipe 6 and a tailing barrel 7; the method is characterized in that: the upper end of the lower cone 1 is connected with the side wall of the column body, and the lower end of the lower cone 1 is connected with the bottom plate of the column body; the two discharging pipes I2 are arranged, one ends of the two discharging pipes I2 are respectively connected with the lower cone 1 in a tangential manner, and the other ends of the two discharging pipes I2 are connected with one end of the discharging pipe II 3; the other ends of the two discharging pipes II 3 are connected with the discharging vertical pipe 6 after being converged; the upper end of the discharging vertical pipe 6 is connected with a tailing barrel 7, and the lower end of the discharging vertical pipe 6 is provided with a tailing discharging pipe 4 and an electric valve 5; thoroughly solves the problem of blockage of a tailing discharging pipe and the problem of dead zone of tailings at the bottom of a column body.
Claims (3)
1. A large-diameter flotation column tailing discharging device is characterized in that: the device consists of a lower cone (1), a discharge pipe I (2), a discharge pipe II (3), a tailing discharge pipe (4), an electric valve (5), a discharge vertical pipe (6) and a tailing barrel (7); the upper end of the lower cone (1) is connected with the side wall of the column body, and the lower end of the lower cone (1) is connected with the bottom plate of the column body; the two discharging pipes I (2) are arranged in number, one end of each discharging pipe I (2) is tangentially connected with the lower cone (1), and the other ends of the two discharging pipes I (2) are connected with one end of the discharging pipe II (3); the other ends of the two discharging pipes II (3) are connected with a discharging vertical pipe (6) after being converged; the upper end of the discharging vertical pipe (6) is connected with a tailing barrel (7), and the lower end of the discharging vertical pipe (6) is provided with a tailing discharging pipe (4) and an electric valve (5).
2. A large diameter flotation column reject discharge apparatus according to claim 1, wherein: the inclination angle of the discharging pipe I (2) is theta, and the theta angle is 15 degrees.
3. A large diameter flotation column reject discharge apparatus according to claim 1, wherein: the horizontal included angle of the two discharging pipes I (2) is delta, and the delta angle is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320518987.0U CN219923289U (en) | 2023-03-14 | 2023-03-14 | Major diameter flotation column tailing discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320518987.0U CN219923289U (en) | 2023-03-14 | 2023-03-14 | Major diameter flotation column tailing discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219923289U true CN219923289U (en) | 2023-10-31 |
Family
ID=88486639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320518987.0U Active CN219923289U (en) | 2023-03-14 | 2023-03-14 | Major diameter flotation column tailing discharging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219923289U (en) |
-
2023
- 2023-03-14 CN CN202320518987.0U patent/CN219923289U/en active Active
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