Trace oil flotation reagent feeding device
By designing a multi-stage cylindrical and disc dosing system, continuous micro-dosing of oil flotation reagents was achieved, solving the problems of large reagent dosage and uneven mixing, thus improving flotation efficiency and reducing costs.
Patent Information
- Application Number
- CN202511500280.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2025-11-18
AI Technical Summary
The existing methods of adding oil flotation reagents result in excessive reagent dosage, insufficient mixing, increased costs, and reduced flotation performance, making it difficult to achieve continuous micro-dosing.
It adopts a multi-stage cylindrical sleeve structure to divide the drug volume step by step, and realizes continuous drug addition through the gravity feeding pipe and the dosing device. Combined with the disc dosing device to diffuse the drug solution, the drug delivery area is increased, and micro-volume continuous drug delivery is realized.
This method achieves geometric reduction of reagents, reduces dosage, improves mixing efficiency, optimizes flotation effect, and reduces cost.
Smart Images
Figure CN120961313A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mineral processing reagent delivery technology, and more specifically to an apparatus for micro-dosing of reagents for oil flotation. Background Technology
[0002] Currently, mineral processing plants frequently use many types of oil flotation reagents, such as diesel, kerosene, and No. 2 oil. These reagents are usually used as collectors or frothers, and the dosage is generally very small. Specifically, the dosage at a single dosing point is only a few tens of milliliters per hour, which is considered a trace amount.
[0003] These agents are usually delivered directly to the dosing point via pipeline pumps, or they can be delivered via pulsating diaphragm pipelines. This method uses a fixed-volume diaphragm and intermittent dosing, with the amount of agent added at one time being the volume of a single diaphragm. This intermittent dosing method can reduce the amount of agent added by controlling the frequency of dosing.
[0004] Directly supplying reagents to the dosing point via pipeline pumping results in excessive reagent dosage even in the smallest pipelines, severely deteriorating flotation performance and increasing reagent usage and costs. Conversely, using a pulsating diaphragm pipeline delivery method suffers from problems such as excessively large single-dosage amounts, insufficient mixing of reagents and pulp, and easy clogging of the diaphragm cavity by impurities, making continuous micro-flotation reagent addition impossible.
[0005] Moreover, the above-mentioned dosing methods all involve feeding the flotation mixing tank into the flotation tank at a single point through a pipeline. Oil-based reagents are inherently difficult to dissolve and mix evenly with the slurry, which inevitably increases the amount of reagent used, resulting in high consumption of flotation reagents, high reagent costs, and poor flotation performance. Summary of the Invention
[0006] The purpose of this invention is to provide a micro-oil flotation reagent dosing device that enables continuous micro-dosing of oil flotation reagents, with a large dosing area, thorough reagent mixing, optimized flotation effect, and reduced reagent dosage and cost.
[0007] To achieve the above objectives, the present invention provides a trace oil flotation reagent delivery device, comprising a trace reagent preparation device and a trace reagent addition device;
[0008] The micro-drug preparation device includes a multi-stage cylinder and a main drug delivery tube arranged sequentially from the inside to the outside. The diameter of each stage of the cylinder increases sequentially from the inside to the outside, and the height of each stage of the cylinder decreases sequentially from the inside to the outside. The upper end of each cylinder is open to form an overflow port that decreases step by step. Oily drugs are fed into the innermost inner cylinder of the micro-drug preparation device through the main drug delivery tube.
[0009] The two adjacent cylinders are connected by longitudinal partition plates, which cut the annular space between the two adjacent cylinders into a plurality of sub-pharmaceutical areas of the stage; from inside to outside, the partition plates cut the first-stage annular space into n sub-pharmaceutical areas, wherein the second-stage annular space is cut into m × n sub-pharmaceutical areas by means of setting m partition plates on the outside of each sub-pharmaceutical area of the first stage, so that the volume of the sub-pharmaceutical areas decreases stage by stage, and the number of sub-pharmaceutical areas on the outside increases geometrically stage by stage from inside to outside.
[0010] The micro-chemical additive device comprises a plurality of chemical feeders, each of which is arranged above the corresponding flotation ore pulp stirring tank and is in communication with the corresponding smallest-volume sub-pharmaceutical area located at the outermost side through a self-flowing feeding pipe.
[0011] Optionally, in the two adjacent stages of the cylinders, the diameter of the lower-stage cylinder is 1.2-1.6 times that of the upper-stage cylinder.
[0012] Optionally, in the two adjacent stages of the cylinders, the height of the lower-stage cylinder is 200-100 mm lower than that of the upper-stage cylinder.
[0013] Optionally, the height difference between the two adjacent cylinders close to the outside is smaller than that between the two adjacent cylinders close to the inside.
[0014] Optionally, the chemical feeder of the micro-chemical additive device is a disc chemical feeder, each of which comprises a chemical feeding disc with a peripheral circular edge, and the chemical outlet at the end of the self-flowing feeding pipe is opposite to the center of the chemical feeding disc, so that the liquid chemical spreads from the center of the chemical feeding disc to the periphery and flows out of the chemical feeding disc from the peripheral circular edge and into the corresponding flotation ore pulp stirring tank.
[0015] Optionally, the diameter of the chemical feeding disc is 0.1-0.4 times that of the flotation ore pulp stirring tank, and the height of the peripheral circular edge of the chemical feeding disc is 10-30 mm.
[0016] Optionally, the plurality of stages of cylinders are connected by welding a common bottom plate.
[0017] Optionally, the bottom of the partition plate is welded to the common bottom plate, and the upper edge of the partition plate is level with the upper edge of the outer cylinder.
[0018] Optionally, the number of n is 3-6, and the number of m is 3-6.
[0019] Optionally, each self-flowing feeding pipe is in communication with the smallest-volume sub-pharmaceutical area located at the outermost side at the bottom.
[0020] The micro oil type flotation reagent dosing device provided by the application adopts multi-stage cylinder sleeve connection, and each side cylinder is enlarged from the inside to the outside, and each side cylinder is divided into multiple sub-drug areas along the circumference, so that the oil type reagent is cut into multiple units to realize the preparation of micro flotation reagent, and then the continuous addition of reagent is realized through one-to-one corresponding end dosing device, which not only realizes the geometric rapid division of the amount of oil type reagent, realizes the continuous preparation of micro reagent, guarantees the use of micro reagent from the source, avoids excessive reagent and high cost, and affects the flotation effect, and has compact structure and stable performance. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The top view schematic diagram of the micro oil type flotation reagent dosing device provided by the first embodiment of the application is shown in the figure.
[0022] Figure 2 The sectional view schematic diagram of the micro oil type flotation reagent dosing device shown in the figure is shown in the figure. Figure 1
[0023] Figure 3 The structure schematic diagram of the micro reagent adding device arranged above the flotation ore pulp stirring tank.
[0024] The reference signs are explained as follows:
[0025] 10. Micro reagent preparation device; 11. Dosing main pipe; 12. Cylinder; 13. Bottom plate; 14. Partition plate; 15. Sub-drug area; 16. Self-flow feeding pipe; 20. Micro reagent adding device; 21. Dosing device; 211. Dosing disc; 212. Peripheral circular edge; 30. Flotation ore pulp stirring tank; 31. Spiral stirring shaft. DETAILED DESCRIPTION
[0026] In order to enable the personnel in the technical field to better understand the application scheme, the application is further described in detail below in combination with the drawings and specific embodiments.
[0027] In this document, the terms such as "upper", "lower", "inner", "outer" and the like are established based on the positional relationship shown in the drawings, and according to the different drawings, the corresponding positional relationship may also change accordingly, therefore, it cannot be understood as an absolute limitation on the protection scope; and the relationship terms such as "first" and "second" are only used to distinguish one part from another part with the same name, and do not necessarily require or imply any such actual relationship or order between the parts.
[0028] Please refer to Figure 1 , Figure 2 , Figure 1 The top view schematic diagram of the micro oil type flotation reagent dosing device provided by the first embodiment of the application is shown in the figure. Figure 2 The sectional view schematic diagram of the micro oil type flotation reagent dosing device shown in the figure is shown in the figure.Figure 1 A cross-sectional view of the micro-oil flotation reagent dosing device.
[0029] As shown in the figure, in one embodiment, the micro-oil flotation reagent dosing device provided by the present application mainly consists of a micro-reagent preparation device 10 and a micro-reagent adding device 20.
[0030] The micro-reagent preparation device 10 is provided with a plurality of stages of cylinders 12 and a dosing main pipe 11 arranged from inside to outside, and the plurality of stages of cylinders 12 are welded and connected by a common base plate 13. The diameter of each stage of cylinders 12 increases from inside to outside, and the height of each stage of cylinders 12 decreases from inside to outside. In the two adjacent stages of cylinders 12, the diameter of the lower stage of cylinders 12 is 1.2-1.6 times the diameter of the upper stage of cylinders 12, and the height of the lower stage of cylinders 12 is 200-100 mm lower than the height of the upper stage of cylinders 12.
[0031] The upper end of each cylinder 12 is open to form a gradually lowered overflow port. The oil reagent is input into the innermost cylinder 12 of the micro-reagent preparation device, i.e., the cylinder 12 located at the center, through the dosing main pipe 11.
[0032] The two adjacent cylinders 12 are connected by a longitudinal partition plate 14, which cuts the annular space between the two adjacent cylinders 12 into a plurality of reagent distribution areas 15 of the stage. The bottom of the partition plate 14 is welded to the common base plate 13, and the upper edge of the partition plate 14 is level with the upper edge of the outer cylinder 12.
[0033] From inside to outside, the partition plate 14 divides the first stage of annular spaces into n reagent distribution areas 15, and n can be 3-6. The second stage of annular spaces is divided into m × n reagent distribution areas 15 by setting m partition plates 14 on the outside of each reagent distribution area 15 of the first stage, and m can be 3-6. In this way, the volume of the reagent distribution areas 15 gradually decreases, and the number of reagent distribution areas 15 on the outside gradually increases geometrically from inside to outside. Each stage of reagent distribution areas 15 is in the form of a ring sector.
[0034] In operation, the reagent flows from the center cylinder 12 to the reagent distribution areas 15 on the outside in the order of the arrows from top to bottom. In this embodiment, the reagent flows from the center cylinder 12 to the smallest reagent distribution area 15 on the outside through three overflow processes, thereby achieving automatic and fine distribution.
[0035] In this embodiment, the height difference between the two adjacent cylinders 12 close to the outside is smaller than the height difference between the two adjacent cylinders 12 close to the inside, i.e., h1 > h2 > h3 in the figure.
[0036] The reason for such design is mainly that the diameter of the cylinder 12 close to the inner side is relatively small, the overflow area is small, the overflow speed is fast, and the medicament generally has certain viscosity, if the height difference is consistent, it is easy to cause the flow time of the medicament from the inner side to the outer side to be inconsistent, which is an extremely easy-to-overlook technical problem, through the creative labor, the present application not only finds this technical problem, but also, through the structure design with the height difference, the height difference close to the inner side is larger, the height difference close to the outer side is smaller, the cylinder wall retardation time of the medicament can be lengthened, the flow time is beneficially lengthened, the flow time from the inner side to the outer side is consistent, and the hidden technical problem is well solved.
[0037] The micro oil type flotation medicament dosing device provided by the present application adopts multi-stage cylinder 12 sleeving, and the cylinder 12 is enlarged from the inner side to the outer side, each side of the cylinder 12 is divided into a plurality of sub-medicament areas along the circumference in a way of gradually multiple sub-mineralization, the oil type medicament is cut into a plurality of units to realize the preparation of the micro flotation medicament, and then the continuous addition of the medicament is realized through one-to-one corresponding end medicament adding device 21.
[0038] Since the micro medicament preparation device is from the inner side to the outer side, the first stage is cut into n sub-medicament areas 15, and the second stage sub-medicament area 15 is increased to m × n by setting m division plates on the outer side of each sub-medicament area 15 of the first stage.
[0039] In this way, the number of sub-medicament areas 15 on the outer side is geometrically increased from the inner side to the outer side.
[0040] Please refer to Figure 3 , Figure 3 The structure schematic view of the micro medicament adding device arranged above the flotation ore pulp stirring tank.
[0041] As shown in the figure, the micro medicament adding device 20 is provided with a plurality of medicament adding devices 21, each medicament adding device 21 is arranged above the corresponding flotation ore pulp stirring tank 30, and is in communication with the corresponding smallest volume sub-medicament area 15 located at the outermost side through the self-flow feeding pipe 16.
[0042] Specifically, each self-flow feeding pipe 16 is in communication with the smallest volume sub-medicament area 15 located at the outermost side at the bottom. In this way, only gravity can realize the automatic supply of the medicament, and no additional pumping equipment needs to be added, so that the structure is greatly simplified and the cost is saved.
[0043] The medicine adding device 20 is a disc medicine adding device, and each disc medicine adding device has a medicine adding disc 211 with a peripheral circular edge 212, and the self-flowing feeding pipe 16 is vertically arranged at the end of the medicine adding disc 211, and the medicine outlet is opposite to the center of the medicine adding disc 211, so that the medicine is diffused from the center to the periphery of the medicine adding disc 211 and flows out from the peripheral circular edge 212 of the medicine adding disc 211, and then flows into the corresponding flotation ore pulp stirring tank 30.
[0044] More specifically, the diameter of the medicine adding disc 211 can be 0.1-0.4 times the diameter of the flotation ore pulp stirring tank 30, and the height of the peripheral circular edge 212 of the medicine adding disc 211 can be 10-30 mm.
[0045] In this way, the finished medicine pulp overflows from the periphery of the disc medicine adding device, and is fed into the ore pulp stirring tank in a circumferential manner, realizes continuous addition of the medicine from a point to a circular surface, greatly increases the medicine feeding area, optimizes the contact effect of the medicine and the ore pulp, thereby guarantees the flotation effect, and reduces the medicine consumption and the medicine cost.
[0046] In another embodiment, the medicine adding disc 211 can be installed on the upper end of the spiral stirring shaft 31 of the flotation ore pulp stirring tank 30, and is driven to rotate synchronously by the spiral stirring shaft 31 of the flotation ore pulp stirring tank 30, so that the centrifugal force generated during rotation can be utilized to not only distribute the medicine in a circumferential manner, but also have an outward splashing effect, further increases the medicine feeding area, and makes the medicine more fully mixed.
[0047] In yet another embodiment, overflow grooves uniformly distributed in the circumferential direction can be designed on the peripheral circular edge 212 of the medicine adding disc 211 to further enhance the outward splashing effect.
[0048] The above embodiments are only preferred schemes of the present application, and are not limited thereto, and targeted adjustments can be made according to actual needs to obtain different embodiments. For example, the volume of the medicine distribution area can be combined or adjusted according to different flotation ore pulp stirring tanks, etc. Since there are many possible ways, they will not be illustrated one by one here.
[0049] The micro oil-based flotation medicine feeding device provided by the present application is described in detail above. The principles and embodiments of the present application are described by applying specific examples in this paper, and the above embodiment descriptions are only used to help understand the core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.
Claims
1. A device for administering trace amounts of oil flotation reagents, characterized in that, It includes a micro-dosage preparation device (10) and a micro-dosage addition device (20). The micro-drug preparation device (10) includes a multi-stage cylinder (12) arranged sequentially from the inside to the outside and a main drug delivery tube (11). The diameter of each stage of the cylinder (12) increases sequentially from the inside to the outside, and the height of each stage of the cylinder (12) decreases sequentially from the inside to the outside. The upper end of each cylinder (12) is open to form an overflow port that decreases step by step. Oily drugs are input into the innermost cylinder (12) of the micro-drug preparation device through the main drug delivery tube (11). The two adjacent cylinders (12) are connected by a longitudinal partition plate (14), which divides the annular space between the two adjacent cylinders into multiple drug distribution areas (15) of the same level. From the inside to the outside, the partition plate (14) divides the first level annular space into n drug distribution areas (15). The second level annular space is divided into m × n drug distribution areas (15) by setting m partition plates on the outside of each drug distribution area (15) of the first level, so that the volume of the drug distribution area (15) decreases step by step, and the number of drug distribution areas (15) on the outside increases geometrically from the inside to the outside. The micro-dosing device (20) includes multiple dosers (21), each of which is arranged above the corresponding flotation slurry mixing tank (30) and connected to the corresponding outermost minimum volume dosing zone (15) via a gravity feed pipe (16).
2. The device for administering trace oil flotation reagents according to claim 1, characterized in that, In the two adjacent cylindrical sections (12), the diameter of the lower cylindrical section (12) is 1.2 to 1.6 times the diameter of the upper cylindrical section (12).
3. The micro-oil flotation reagent delivery device according to claim 2, characterized in that, In the two adjacent cylindrical sections (12), the height of the next cylindrical section (12) is 200mm-100mm lower than the height of the previous cylindrical section (12).
4. The device for administering trace oil flotation reagents according to claim 1, characterized in that, The height difference between two adjacent cylinders (12) near the outer side is smaller than the height difference between two adjacent cylinders (12) near the inner side.
5. The device for administering trace oil flotation reagents according to claim 1, characterized in that, The dosing device (21) of the micro-dosing device (20) is a disc dosing device. Each disc dosing device includes a dosing disc (211) with a peripheral circular edge (212). The outlet at the end of the gravity feed pipe (16) is opposite to the center of the dosing disc (211) so that the liquid medicine diffuses from the center of the dosing disc (211) to the surrounding area and flows out of the dosing disc (211) from the peripheral circular edge and into the corresponding flotation slurry mixing tank (30).
6. The device for administering trace oil flotation reagents according to claim 5, characterized in that, The diameter of the dosing plate (211) is 0.1 to 0.4 times the diameter of the flotation slurry mixing tank (30), and the height of the periphery of the dosing plate (211) is 10 mm to 30 mm.
7. The device for administering trace oil flotation reagents according to claim 1, characterized in that, The multi-stage cylinders (12) are welded together via a common base plate (13).
8. The device for administering trace oil flotation reagents according to claim 7, characterized in that, The bottom of the partition plate (14) is welded to the common base plate (13), and the upper edge of the partition plate (14) is at the same height as the upper edge of the outer cylinder (12).
9. The device for administering trace oil flotation reagents according to any one of claims 1 to 8, characterized in that, The number of n is 3-6, and the number of m is 3-6.
10. The device for administering trace oil flotation reagents according to any one of claims 1 to 8, characterized in that, Each of the aforementioned self-flowing feed pipes (16) is connected at the bottom to the outermost minimum volume drug-integrating zone (15).