CN115364529B - Method for improving desliming effect of thickener - Google Patents
Method for improving desliming effect of thickener Download PDFInfo
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- CN115364529B CN115364529B CN202211058519.6A CN202211058519A CN115364529B CN 115364529 B CN115364529 B CN 115364529B CN 202211058519 A CN202211058519 A CN 202211058519A CN 115364529 B CN115364529 B CN 115364529B
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- thickener
- ore
- feeding chute
- chute
- flow control
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- 239000002562 thickening agent Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 238000005188 flotation Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000008569 process Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the technical field of thickener equipment, in particular to a method for improving the desliming effect of a thickener, which comprises the following steps: step S1, configuring a corresponding number of densifiers on each production line based on the flow of the floating dry ore; s2, setting a mineral separation assembly on a mineral feeding chute corresponding to each group of thickener to adjust mineral separation quantity; and S3, adjusting the flow operation of the underflow pump of the thickener based on the flotation ore feeding concentration within a certain range, setting a flow control plate after each ore chute is separated to form two ore conveying tanks by setting an L-shaped baffle plate in the first ore feeding chute, the second ore feeding chute and the third ore feeding chute, and driving the flow control plate to rotate by a rotating mechanism during adjustment, wherein when the ore flow in one side of the ore conveying tanks needs to be reduced, the flow control plate is driven to deflect towards the side by the rotating mechanism, so that the slot wall distance between the flow control plate and the corresponding one side of the ore conveying tanks is reduced, and further the ore quantity adjustment of each ore conveying tank is realized.
Description
Technical Field
The invention relates to the technical field of thickener equipment, in particular to a method for improving the desliming effect of a thickener.
Background
The ore has complex components, fine iron mineral embedding granularity and extremely high flotation difficulty; if the flotation ore pulp contains more mineral mud, a series of adverse effects are brought to flotation, and the following main effects are brought: during the positive flotation, the ore concentrate is easy to be mixed in a foam product, so that the grade of the ore concentrate is reduced, the ore concentrate is easy to cover the surface of coarse grains, the flotation of the coarse grains is influenced, the ore slime also adsorbs a large amount of medicaments, the medicament consumption is increased, the ore pulp is sticky, and the aeration condition is worsened;
in the prior art, the ore dressing process flow is designed to grind magnetism, and the flotation is respectively corresponding to three production lines, the magnetic concentrate produced in the grinding procedure is concentrated and desliming by corresponding to 6 thickeners, and two thickeners after desliming are corresponding to one production line for flotation; because the original design of the thickener is large in selection, the desliming effect is not ideal, the water quality is often less than 1000ppm, a large amount of mineral mud enters the flotation process, the improvement of flotation process indexes is not facilitated, after 4 thickeners are corresponding to 3 production lines through preliminary transformation, the sedimentation area of the thickener is too small, the overflow water quality is often more than 10000ppm, and the iron metal loss is serious.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for improving the desliming effect of a thickener.
The invention provides a method for improving the desliming effect of a thickener, which comprises the following steps:
step S1, configuring a corresponding number of densifiers on each production line based on the flow of the floating dry ore;
s2, setting a mineral separation assembly on a mineral feeding chute corresponding to each group of thickener to adjust mineral separation quantity;
and step S3, adjusting the flow operation of the underflow pump of the thickener within a certain range based on the flotation ore feeding concentration.
Preferably, for the step S1, 5 thickeners with the diameter of 65m are arranged on the three production lines, namely, a first thickener, a second thickener, a third thickener, a fourth thickener and a fifth thickener which are sequentially arranged.
Preferably, for the step S2, three groups of feeding chute are correspondingly distributed on the production line, namely a first feeding chute, a second feeding chute and a third feeding chute.
Preferably, the first thickener is connected with the first ore feeding chute through a material conveying mechanism; the second thickener is synchronously connected with the first ore feeding chute and the second ore feeding chute through a material conveying mechanism; the third thickener is connected with the second ore feeding chute through a material conveying mechanism; the fourth thickener and the fifth thickener are connected with the third ore feeding chute through the material conveying mechanism.
Preferably, the first ore feeding chute, the second ore feeding chute and the third ore feeding chute are respectively provided with an ore separating assembly for separating materials.
Preferably, the ore separation assembly comprises L-shaped baffles arranged in the first ore feeding chute, the second ore feeding chute and the third ore feeding chute, and each group of L-shaped baffles respectively separates the first ore feeding chute, the second ore feeding chute and the third ore feeding chute to form two material conveying tanks.
Preferably, the end of the L-shaped baffle is also provided with a flow control plate, the flow control plate is rotationally connected with the L-shaped baffle, and the flow control plate is connected with a rotating mechanism for driving the flow control plate to rotate.
Preferably, the rotating mechanism comprises a driving cylinder arranged on the ore chute;
the flow control plate is fixedly provided with a support, a T-shaped sliding groove is formed in the support, a T-shaped sliding seat is arranged in the T-shaped sliding groove in a sliding mode, and the telescopic end of the driving cylinder is hinged with the T-shaped sliding seat;
preferably, for step S3, monitoring overflow water quality of the corresponding thickener, the monitoring process is as follows:
a. if the water quality is more than 4000ppm, the frequency of the underflow pump is increased by 0.1Hz;
b. if the water quality is less than 2000ppm, the frequency of the underflow pump is reduced by 0.1Hz;
c. if the water quality is more than 10000ppm, flocculant is added to improve the water quality.
Preferably, the thickener underflow pumps respectively comprise: the first underflow pump station, the second underflow pump station and the third underflow pump station are connected with the first thickener, the second underflow pump station is respectively connected with the second thickener and the third thickener, and the third underflow pump station is respectively connected with the fourth thickener and the fifth thickener.
Compared with the related art, the method for improving the desliming effect of the thickener has the following beneficial effects:
after two material conveying tanks are formed by arranging L-shaped baffles in the first material feeding chute, the second material feeding chute and the third material feeding chute, a flow control plate is arranged, when the material conveying tanks are regulated, a rotating mechanism is started, the rotating mechanism drives the flow control plate to rotate, when the material flow in one material conveying tank needs to be reduced, the flow control plate is driven to deflect towards the side through the rotating mechanism, the distance between the flow control plate and the wall of the material conveying tank on the corresponding side is reduced, and then the material flow regulation of each material conveying tank is realized.
Drawings
FIG. 1 is a schematic flow chart of a method for improving the desliming effect of a thickener according to the present invention;
FIG. 2 is a schematic diagram of a thickener production line in the method for improving the desliming effect of the thickener shown in FIG. 1;
FIG. 3 is a schematic view of a chute in the method of improving the desliming effect of a thickener shown in FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3A;
fig. 5 is a schematic structural diagram of a T-shaped slide in the method for improving the desliming effect of the thickener shown in fig. 1.
Reference numerals in the drawings: 1. a first thickener; 2. a first underflow pump station; 3. a mineral separation assembly; 4. a first feed chute; 101. a second thickener; 102. a third thickener; 103. a fourth thickener; 104. a fifth thickener; 201. a second underflow pump station; 202. a third underflow pump station; 301. a flow control plate; 302. an L-shaped baffle; 303. a T-shaped chute; 304. a driving cylinder; 305. a support; 306. a T-shaped slide seat; 401. a second feed chute; 402. and a third feeding chute.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 4, a method for improving a desliming effect of a thickener according to an embodiment of the present invention includes the following steps:
step S1, configuring a corresponding number of densifiers on each production line based on the flow of the floating dry ore;
s2, setting a mineral separation assembly 3 on a mineral feeding chute corresponding to each group of thickener to adjust mineral separation quantity;
and step S3, adjusting the flow operation of the underflow pump of the thickener within a certain range based on the flotation ore feeding concentration.
For step S1, in one embodiment of the present invention, 5 thickeners with a diameter of 65m are disposed on three production lines, namely, a first thickener 1, a second thickener 101, a third thickener 102, a fourth thickener 103 and a fifth thickener 104, wherein the first thickener 1, the second thickener 101, the third thickener 102, the fourth thickener 103 and the fifth thickener 104 are sequentially disposed;
for the step S2, three groups of feeding chute are correspondingly distributed on the production line, namely a first feeding chute 4, a second feeding chute 401 and a third feeding chute 402;
the first thickener 1 is connected with the first ore feeding chute 4 through a material conveying mechanism; the second thickener 101 is synchronously connected with the first ore feeding chute 4 and the second ore feeding chute 401 through a material conveying mechanism; the third thickener 102 is connected with the second ore feeding chute 401 through a material conveying mechanism; the fourth thickener 103 and the fifth thickener 104 are connected with the third ore feeding chute 402 through a material conveying mechanism;
specifically, the first ore feeding chute 4, the second ore feeding chute 401 and the third ore feeding chute 402 are respectively provided with an ore separating assembly 3 for separating materials;
the ore separation assembly comprises L-shaped baffles 302 which are arranged in a first ore feeding chute 4, a second ore feeding chute 401 and a third ore feeding chute 402, and each group of L-shaped baffles 302 respectively divide the first ore feeding chute 4, the second ore feeding chute 401 and the third ore feeding chute 402 to form two material conveying tanks;
the tail end of the L-shaped baffle 302 is also provided with a flow control plate 301, the flow control plate 301 is rotationally connected with the L-shaped baffle 302, and the flow control plate 301 is connected with a rotating mechanism for driving the flow control plate to rotate;
specifically, in this embodiment, after the first ore feeding chute 4, the second ore feeding chute 401 and the third ore feeding chute 402 are provided with the L-shaped baffle 302 to separate each ore chute into two material conveying grooves, in order to further adjust the flow of the material conveying grooves on two sides of each ore chute, the flow control plate 301 is provided, when the flow control plate 301 is adjusted, the rotating mechanism is started, the rotating mechanism drives the flow control plate 301 to rotate, when the flow of ore in one material conveying groove needs to be reduced, the rotating mechanism drives the flow control plate 301 to deflect towards the side, so that the distance between the flow control plate 301 and the wall of the material conveying groove on the corresponding side is reduced, and further the ore quantity adjustment of each material conveying groove is realized;
referring to fig. 5, the rotating mechanism includes a drive cylinder 304 disposed on the chute;
wherein, a support 305 is fixed on the flow control plate 301, a T-shaped chute 303 is arranged in the support 305, a T-shaped slide seat 306 is arranged in the T-shaped chute 303 in a sliding way, and the telescopic end of the driving cylinder 304 is hinged with the T-shaped slide seat 306;
specifically, in this embodiment, the driving cylinder 304 is started, the telescopic end of the driving cylinder 304 drives the T-shaped slide seat 306 to slide in the T-shaped chute 303 in the telescopic process, and the flow control plate 301 is driven to rotate in the corresponding ore chute while sliding so as to realize angle adjustment;
further, in one embodiment of the present invention, for the first feeding chute 4, the first thickener 1 is connected to one side chute through a feeding mechanism, wherein the second thickener 101 is connected to the other side chute through a feeding mechanism;
for the second feeding chute 401, the second thickener 101 is connected with a material conveying groove on one side through a material conveying mechanism, and the third thickener 102 is connected with a material conveying groove on the other side through a material conveying mechanism;
for the third feeding chute 402, the fourth thickener 103 is connected with a feeding chute on one side through a feeding mechanism, and the fifth thickener 104 is connected with a feeding chute on the other side through a feeding mechanism;
specifically, in this embodiment, the first ore feeding chute 4, the second ore feeding chute 401 and the third ore feeding chute 402 at least correspond to one group of thickeners, so that when the floating dry ore amount is 700t/h, the volume flow of ore pulp given to flotation by each grinding production line is about 5320m3/h, and two thirds of the ore pulp amount enters one 65m thickener, in this way, the sedimentation area of the ore pulp is reduced, and the desliming effect is improved;
and for the step S3, monitoring overflow water quality of the corresponding thickener, wherein the monitoring process is as follows:
a. if the water quality is more than 4000ppm, the frequency of the underflow pump is increased by 0.1Hz;
b. if the water quality is less than 2000ppm, the frequency of the underflow pump is reduced by 0.1Hz;
c. if the water quality is more than 10000ppm, adding flocculant to improve the water quality;
in one embodiment of the invention, thickener underflow pumps each comprise: a first underflow pump station 2, a second underflow pump station 201 and a third underflow pump station 202, wherein the first underflow pump station 2 is connected with the first thickener 1, the second underflow pump station 201 is respectively connected with the second thickener 101 and the third thickener 102, and the third underflow pump station 202 is respectively connected with the fourth thickener 103 and the fifth thickener 104;
in the continuous production process of a thickener of a large-scale flotation system, overflow water quality is improved mainly through flow adjustment of an underflow pump and addition of a flocculating agent, and in the actual production process, the concentration change of flotation feed or the influence of the addition of the flocculating agent on flotation process indexes are easily caused, so that the production stability is not facilitated;
the standard value of the dry ore quantity is 440+/-20 t/h; the underflow concentration standard is that the second thickener 101, the fourth thickener 103 and the fifth thickener 104 are 37+/-2 percent, the third thickener 102 is 31+/-2 percent, and when the dry ore quantity of a single thickener is not in the standard range, the dry ore quantity of the single thickener is controlled in the standard range through the ore separating component 3.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (4)
1. A method for improving the desliming effect of a thickener, comprising the steps of:
step S1, configuring a corresponding number of densifiers on each production line based on the flow of the floating dry ore;
s2, setting a mineral separation assembly on a mineral feeding chute corresponding to each group of thickener to adjust mineral separation quantity;
s3, adjusting the flow operation of the underflow pump of the thickener within a certain range based on the flotation ore feeding concentration;
for the step S1, 5 concentrators with the diameter of 65m are arranged on three production lines, namely a first concentrator (1), a second concentrator (101), a third concentrator (102), a fourth concentrator (103) and a fifth concentrator (104) which are sequentially arranged;
for the step S2, three groups of feeding chute are correspondingly distributed on the production line, namely a first feeding chute (4), a second feeding chute (401) and a third feeding chute (402);
the first thickener (1) is connected with the first ore feeding chute (4) through a material conveying mechanism; the second thickener (101) is synchronously connected with the first ore feeding chute (4) and the second ore feeding chute (401) through a material conveying mechanism; the third thickener (102) is connected with the second ore feeding chute (401) through a material conveying mechanism; the fourth thickener (103) and the fifth thickener (104) are connected with the third ore feeding chute (402) through a material conveying mechanism;
a mineral separation assembly (3) for separating materials is respectively arranged on the first mineral feeding chute (4), the second mineral feeding chute (401) and the third mineral feeding chute (402);
the ore separation assembly comprises L-shaped baffles (302) which are arranged in a first ore feeding chute (4), a second ore feeding chute (401) and a third ore feeding chute (402), and each group of L-shaped baffles (302) respectively divide the first ore feeding chute (4), the second ore feeding chute (401) and the third ore feeding chute (402) to form two material conveying tanks.
2. The method for improving the desliming effect of a thickener according to claim 1, wherein the end of the L-shaped baffle plate (302) is further provided with a flow control plate (301), the flow control plate (301) is rotatably connected with the L-shaped baffle plate (302), and the flow control plate (301) is connected with a rotating mechanism for driving the flow control plate to rotate.
3. A method of improving the desliming effect of a thickener according to claim 2, wherein the rotating mechanism comprises a drive cylinder (304) arranged on the chute;
wherein, fixed mounting support (305) on flow control board (301), set up T type spout (303) in support (305), T type slide (306) have been laid to the interior slip of T type spout (303), drive cylinder (304) flexible end and T type slide (306) are articulated.
4. A method of improving the desliming effect of a thickener according to claim 1, wherein the thickener underflow pumps each comprise: the device comprises a first underflow pump station (2), a second underflow pump station (201) and a third underflow pump station (202), wherein the first underflow pump station (2) is connected with a first thickener (1), the second underflow pump station (201) is respectively connected with a second thickener (101) and a third thickener (102), and the third underflow pump station (202) is respectively connected with a fourth thickener (103) and a fifth thickener (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211058519.6A CN115364529B (en) | 2022-08-31 | 2022-08-31 | Method for improving desliming effect of thickener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211058519.6A CN115364529B (en) | 2022-08-31 | 2022-08-31 | Method for improving desliming effect of thickener |
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| Publication Number | Publication Date |
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| CN115364529A CN115364529A (en) | 2022-11-22 |
| CN115364529B true CN115364529B (en) | 2024-04-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205139622U (en) * | 2015-10-30 | 2016-04-06 | 北矿机电科技有限责任公司 | High -efficient concentrator intelligence control system |
| CN205462699U (en) * | 2016-03-07 | 2016-08-17 | 济南钢城矿业有限公司 | Spiral chute feeder |
| CA3046983A1 (en) * | 2015-05-29 | 2016-11-29 | Suncor Energy Inc. | Mined ore analysis and control of related mining and extraction processes |
| CN106295219A (en) * | 2016-08-22 | 2017-01-04 | 昆明理工大学 | A kind of ore dressing plant cylinder concentrator computational methods ensureing overflow quality and underflow storage capacity |
| CN209612286U (en) * | 2018-12-20 | 2019-11-12 | 中国恩菲工程技术有限公司 | Dense machine control system |
| CN210207196U (en) * | 2019-06-21 | 2020-03-31 | 杨铭辉 | Chute assembled in gravity mineral processing equipment |
-
2022
- 2022-08-31 CN CN202211058519.6A patent/CN115364529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3046983A1 (en) * | 2015-05-29 | 2016-11-29 | Suncor Energy Inc. | Mined ore analysis and control of related mining and extraction processes |
| CN205139622U (en) * | 2015-10-30 | 2016-04-06 | 北矿机电科技有限责任公司 | High -efficient concentrator intelligence control system |
| CN205462699U (en) * | 2016-03-07 | 2016-08-17 | 济南钢城矿业有限公司 | Spiral chute feeder |
| CN106295219A (en) * | 2016-08-22 | 2017-01-04 | 昆明理工大学 | A kind of ore dressing plant cylinder concentrator computational methods ensureing overflow quality and underflow storage capacity |
| CN209612286U (en) * | 2018-12-20 | 2019-11-12 | 中国恩菲工程技术有限公司 | Dense machine control system |
| CN210207196U (en) * | 2019-06-21 | 2020-03-31 | 杨铭辉 | Chute assembled in gravity mineral processing equipment |
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| CN115364529A (en) | 2022-11-22 |
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