CN115364529A - Method for improving desliming effect of thickener - Google Patents
Method for improving desliming effect of thickener Download PDFInfo
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- CN115364529A CN115364529A CN202211058519.6A CN202211058519A CN115364529A CN 115364529 A CN115364529 A CN 115364529A CN 202211058519 A CN202211058519 A CN 202211058519A CN 115364529 A CN115364529 A CN 115364529A
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- thickener
- ore
- feeding chute
- chute
- improving
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- 239000002562 thickening agent Substances 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000005188 flotation Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 15
- 239000008394 flocculating agent Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 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
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- 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: s1, configuring a corresponding number of thickeners on each production line based on the flow of the float dry ore entering; s2, arranging ore separation assemblies on ore feeding chutes corresponding to each group of thickeners to adjust the ore separation amount; and S3, adjusting the flow operation of a underflow pump of the thickener within a certain range based on the concentration of the flotation feed, dividing each ore chute into two conveying chutes by arranging L-shaped baffles in the first ore chute, the second ore chute and the third ore chute, arranging a flow control plate, driving the flow control plate to rotate by a rotating mechanism during adjustment, driving the flow control plate to deviate towards one side by the rotating mechanism when the ore flow in the conveying chute on one side needs to be reduced, so that the distance between the flow control plate and the chute wall of the corresponding conveying chute on one side is reduced, and further realizing the ore quantity adjustment of each conveying chute.
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 components are complex, the disseminated granularity of iron minerals is fine, and the flotation difficulty is extremely high; if the flotation pulp contains more slime, a series of adverse effects are brought to flotation, and the main effects are as follows: during direct flotation, impurities are easily entrained in a foam product, so that the grade of concentrate is reduced, the concentrate is easily covered on the surface of coarse particles, the flotation of the coarse particles is influenced, the slime also adsorbs a large amount of reagents, the reagent consumption is increased, the ore pulp is sticky, and the aeration condition is deteriorated;
in the prior art, the mineral processing technological process designs that grinding and magnetic flotation respectively correspond to three production lines, magnetic concentrate produced in the grinding and magnetic separation process corresponds to 6 thickeners for concentration and desliming, and two thickeners correspondingly float one production line after desliming; because the former design selection of thickener is big, and the desliming effect is unsatisfactory, and quality of water is often less than 1000ppm, and a large amount of slime gets into the flotation process, is unfavorable for the improvement of flotation process index, after corresponding 4 thickeners through 3 production lines of preliminary transformation, because the thickener subsides the area too little, and overflow quality of water is too high, often is greater than 10000ppm, causes the iron metal to run off seriously.
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 desliming effect of a thickener, which comprises the following steps:
s1, configuring a corresponding number of thickeners on each production line based on the flow of the float dry ore entering;
s2, arranging ore separation assemblies on ore feeding chutes corresponding to each group of thickeners to adjust the ore separation amount;
and S3, adjusting the flow operation of the underflow pump of the thickener within a certain range based on the flotation feeding concentration.
Preferably, in step S1, 5 thickeners with a diameter of 65m are disposed 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 disposed.
Preferably, three groups of ore feeding chutes, namely a first ore feeding chute, a second ore feeding chute and a third ore feeding chute, are correspondingly distributed on the production line in the step S2.
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 the 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 a third ore feeding chute through a 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 distributing assembly for distributing materials.
Preferably, the ore distribution assembly comprises L-shaped baffles arranged in a first ore feeding chute, a second ore feeding chute and a third ore feeding chute, and each group of L-shaped baffles separates the first ore feeding chute, the second ore feeding chute and the third ore feeding chute into two material conveying chutes.
Preferably, the tail end of the L-shaped baffle is further provided with a flow control plate, the flow control plate is rotatably connected with the L-shaped baffle, and the flow control plate is connected with a rotating mechanism for driving the L-shaped baffle 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 the 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, reducing the frequency of the underflow pump by 0.1Hz;
c. if the water quality is more than 10000ppm, adding a flocculating agent to improve the water quality.
Preferably, the thickener underflow pumps each include: the first underflow pump station is 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 provided by the invention has the following beneficial effects:
after the first ore feeding chute, the second ore feeding chute and the third ore feeding chute are internally provided with the L-shaped baffle plates to separate the ore chutes into two conveying chutes, the flow control plate is arranged, when the adjustment is carried out, the rotating mechanism is started, the rotating mechanism drives the flow control plate to rotate, and when the ore flow in the conveying chute on one side needs to be reduced, the flow control plate is driven by the rotating mechanism to move towards the side, so that the distance between the flow control plate and the chute wall of the corresponding conveying chute on one side is reduced, and the ore amount of each conveying chute is adjusted.
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 view showing the structure 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 illustration of the configuration of the ore chute of FIG. 1 in a process for improving the desliming effect of a thickener;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;
fig. 5 is a schematic structural diagram of a T-shaped sliding seat in the method for improving the desliming effect of the thickener shown in fig. 1.
The reference numbers in the figures: 1. a first thickener; 2. a first underflow pump station; 3. a mineral separation assembly; 4. a first feeding 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 panel; 302. an L-shaped baffle plate; 303. a T-shaped chute; 304. a driving cylinder; 305. a support; 306. a T-shaped slide seat; 401. a second feeding chute; 402. and a third feeding chute.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 to 4, a method for improving desliming effect of a thickener according to an embodiment of the present invention includes the following steps:
s1, configuring a corresponding number of thickeners on each production line based on the flow of the float dry ore entering;
s2, arranging ore separation assemblies 3 on ore feeding chutes corresponding to each group of thickeners to adjust the ore separation amount;
and S3, adjusting the flow operation of the underflow pump of the thickener within a certain range based on the flotation 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, and 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 ore feeding chutes are correspondingly distributed on the production line, namely a first ore feeding chute 4, a second ore feeding chute 401 and a third ore feeding chute 402;
wherein, the first thickener 1 is connected with a 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 a second ore feeding chute 401 through a material conveying mechanism; the fourth thickener 103 and the fifth thickener 104 are both 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 distributing assembly 3 for distributing materials;
the ore distribution assembly comprises L-shaped baffles 302 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 divides the first ore feeding chute 4, the second ore feeding chute 401 and the third ore feeding chute 402 into two conveying chutes;
the tail end of the L-shaped baffle plate 302 is also 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;
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 divide each ore chute into two conveying chutes, in order to further adjust the flow rates of the conveying chutes on two sides of each ore chute, the flow control plate 301 is provided, and during adjustment, the rotating mechanism is started to drive the flow control plate 301 to rotate, and when the ore flow rate in the conveying chute on one side needs to be reduced, the rotating mechanism drives the flow control plate 301 to move towards the side, so that the distance between the flow control plate 301 and the chute wall of the corresponding conveying chute on the other side is reduced, and further the ore amount adjustment of each conveying chute is realized;
referring to fig. 5, the rotating mechanism includes a driving cylinder 304 disposed on the ore chute;
a support 305 is fixedly installed on the flow control plate 301, a T-shaped sliding groove 303 is formed in the support 305, a T-shaped sliding seat 306 is arranged in the T-shaped sliding groove 303 in a sliding manner, and the telescopic end of a driving cylinder 304 is hinged with the T-shaped sliding seat 306;
specifically, in this embodiment, the driving cylinder 304 is started, the telescopic end of the driving cylinder 304 drives the T-shaped sliding seat 306 to slide in the T-shaped sliding groove 303 in the telescopic process, and the flow control plate 301 is driven to rotate in the corresponding ore chute to realize angle adjustment while sliding;
further, in one embodiment of the present invention, for the first ore feeding chute 4, the first thickener 1 is connected with the conveying chute on one side through the conveying mechanism, wherein the second thickener 101 is connected with the conveying chute on the other side through the conveying mechanism;
for the second ore feeding chute 401, the second thickener 101 is connected with the conveying chute on one side through a conveying mechanism, and the third thickener 102 is connected with the conveying chute on the other side through a conveying mechanism;
for the third feeding chute 402, the fourth thickener 103 is connected with the feeding chute on one side through the feeding mechanism, and the fifth thickener 104 is connected with the feeding chute on the other side through the 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 correspond to at least one group of thickeners, so that when the amount of the entering and floating dry ore is 700t/h, the volume flow rate of the ore pulp fed for flotation by each grinding and magnetic production line is about 5320m3/h, and two thirds of the amount of the ore pulp enters one 65m thickener, so as to reduce the settling area of the ore pulp and improve the desliming effect;
for step S3, monitoring the overflow water quality of the corresponding thickener, the monitoring process is as follows:
a. if the water quality is more than 4000ppm, increasing the frequency of the underflow pump by 0.1Hz;
b. if the water quality is less than 2000ppm, reducing the frequency of the underflow pump by 0.1Hz;
c. if the water quality is more than 10000ppm, adding a flocculating agent to improve the water quality;
in one embodiment of the present invention, thickener underflow pumps each comprise: the system 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;
in the continuous production process of a thickener of a large-scale flotation system, the overflow water quality is improved mainly by adjusting the flow of an underflow pump and adding a flocculating agent, and the flotation feed concentration change or the addition of the flocculating agent is easy to influence the flotation process index in the actual production process, so that the production stability is not facilitated;
the standard value of the dry ore content is 440 +/-20 t/h; the underflow concentration standard is that the concentration of the second thickener 101, the fourth thickener 103 and the fifth thickener 104 is 37 +/-2 percent, the concentration of 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 separation component 3.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, 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; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A method for improving desliming effect of a thickener is characterized by comprising the following steps:
s1, configuring a corresponding number of thickeners on each production line based on the flow of the float dry ore entering;
s2, arranging ore separation assemblies on ore feeding chutes corresponding to each group of thickeners to adjust ore separation amount;
and S3, adjusting the flow operation of the underflow pump of the thickener within a certain range based on the flotation feeding concentration.
2. The method for improving the desliming effect of the thickener according to the claim 1, characterized in that for the step S1, three production lines are provided with (5) thickeners with the diameter of 65m, namely a first thickener (1), a second thickener (101), a third thickener (102), a fourth thickener (103) and a fifth thickener (104) which are sequentially arranged.
3. A method for improving the desliming effect of a thickener according to the claim 2, characterized in that for step S2, three groups of feeding chutes are arranged on the production line, namely a first feeding chute (4), a second feeding chute (401) and a third feeding chute (402).
4. A method for improving desliming effect of a thickener according to claim 2, characterized in that the first thickener (1) is connected with the first feeding chute (4) by a feeding 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 a second ore feeding chute (401) through a material conveying mechanism; the fourth thickener (103) and the fifth thickener (104) are both connected with a third ore feeding chute (402) through a material conveying mechanism.
5. A method for improving the desliming effect of a thickener according to claim 4, characterized in that the first feeding chute (4), the second feeding chute (401) and the third feeding chute (402) are respectively provided with a ore distributing assembly (3) for distributing materials.
6. A method for improving the desliming effect of a thickener according to claim 5, characterized in that the ore distribution assembly comprises L-shaped baffles (302) 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 the L-shaped baffles (302) respectively divides the first ore feeding chute (4), the second ore feeding chute (401) and the third ore feeding chute (402) into two conveying chutes.
7. The method for improving the desliming effect of the thickener according to the claim 6, characterized in that the tail end of the L-shaped baffle (302) is further provided with a flow control plate (301), the flow control plate (301) is rotatably connected with the L-shaped baffle (302), and the flow control plate (301) is connected with a rotating mechanism for driving the L-shaped baffle to rotate.
8. The method for improving the desliming effect of the thickener according to claim 7, wherein the rotating mechanism comprises a driving cylinder (304) arranged on the ore chute;
wherein, fixed mounting support (305) is gone up in flow control board (301), has seted up T type spout (303) in support (305), T type spout (303) are slided and are laid T type slide (306), and it is articulated with T type slide (306) to drive flexible end of actuating cylinder (304).
9. The method for improving the desliming effect of the thickener according to the claim 1, which is characterized in that for the step S3, the monitoring of the overflow water quality of the corresponding thickener is as follows:
a. if the water quality is more than 4000ppm, increasing the frequency of the underflow pump by 0.1Hz;
b. if the water quality is less than 2000ppm, reducing the frequency of the underflow pump by 0.1Hz;
c. if the water quality is more than 10000ppm, adding a flocculating agent to improve the water quality.
10. The method for improving the desliming effect of the thickener according to claim 9, wherein the underflow pumps of the thickener respectively comprise: the system 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).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211058519.6A CN115364529B (en) | 2022-08-31 | 2022-08-31 | Method for improving desliming effect of thickener |
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| CN202211058519.6A CN115364529B (en) | 2022-08-31 | 2022-08-31 | Method for improving desliming effect of thickener |
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| 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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