A beneficiation plant water distribution system

Abstract

The beneficiation plant circulating water arrangement system disclosed in the application comprises a high-level water pool and a circulating water pump station assembly, the circulating water pump station assembly comprises a plurality of circulating water pump stations, each circulating water pump station is arranged at a corresponding concentration step, the concentration step is provided with a concentration pool, overflow water of the concentration pool serves as a water source of the circulating water pump station, and outlets of the circulating water pump stations are respectively communicated with circulating water inlets of regions located upstream; the high-level water pool comprises a water inlet pipeline, a first water outlet pipeline, a second water outlet pipeline and a third water outlet pipeline, the first water outlet pipeline is respectively communicated with production fresh water inlets of each region; the circulating water pump station located between a grinding weak magnetic region and a grinding strong magnetic region is a first circulating water pump station, the second water outlet pipeline is communicated with a water supplement inlet of the first circulating water pump station, and the third water outlet pipeline is communicated with a flushing water inlet of a concentrate and tailings conveying pump station. The beneficiation plant circulating water arrangement system adopts the mode of a plurality of circulating water pump stations, so that the total length of the conveying pipeline can be reduced, and the total energy consumption and investment can be reduced.

Description

Technical Field

[0001] This application relates to the field of mineral processing technology, and more specifically, to a mineral processing plant aqueduct layout system. Background Technology

[0002] Many mines currently process ores requiring multi-element recovery and fine particle size distribution, necessitating multiple separation methods such as weak magnetic separation, strong magnetic separation, gravity separation, and flotation to obtain 3 to 6 or even more products. Such concentrators often have complex processes, particularly concerning the main plant and thickening facilities, where the main plant is frequently divided into multiple workshops based on operational sequence and function. Furthermore, many current mines' concentrators are located in mountainous areas with significant elevation differences and complex terrain. Current production circulating water systems primarily employ either elevated water tanks or low-level circulating water pump stations. Elevated water tanks collect circulating water from various thickening tanks and pump it to the highest point of the concentrator, from where it flows by gravity to the water usage points in each workshop. Low-level circulating water pump stations, on the other hand, require circulating water to flow by gravity from various thickening tanks to the lowest point of the concentrator before being pumped to the water usage points in the workshops.

[0003] Using a high-level water tank, the circulating water is first pumped to a high level and then flows by gravity to each workshop. This requires all water to be collected from the concentration tanks at lower levels and then pumped to the highest-level water tank. Furthermore, all the circulating water must be supplied to the water points in the lower workshops. This method results in excessively high total energy consumption for transporting the circulating water to the highest point, an excessively large high-level water tank volume, excessively long total pipeline length, and excessively high investment. Using a low-level circulating water pumping station, the circulating water is first transported to the lowest point of the plant and then pumped to the water points in each workshop. This requires all water to be pumped from the lowest point, resulting in excessively high total energy consumption for transporting the circulating water to the highest point, an excessively large circulating water pumping station volume, excessively long total pipeline length, and excessively high investment. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a circulating water arrangement system for a mineral processing plant to reduce the total energy consumption of circulating water transportation.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A mineral processing plant with a surrounding water layout system, the mineral processing plant including a crushing operation area, a grinding weak magnetic field area, a grinding strong magnetic field area, a gravity separation area, a flotation area, and a concentrate and tailings conveying pump station. The crushing operation area, the grinding weak magnetic field area, the grinding strong magnetic field area, the gravity separation area, the flotation area, and the concentrate and tailings conveying pump station are arranged in a stepped manner from high to low along the terrain. Concentration steps are provided between the grinding weak magnetic field area and the grinding strong magnetic field area, between the grinding strong magnetic field area and the gravity separation area, between the gravity separation area and the flotation area, and between the flotation area and the concentrate and tailings conveying pump station.

[0007] The mineral processing plant's circulating water system includes an elevated water tank and a circulating water pump station assembly. The elevated water tank is located in the crushing operation area. The circulating water pump station assembly includes multiple circulating water pump stations, each corresponding to a specific thickening step. Each circulating water pump station is located on its corresponding thickening step, and each thickening step is equipped with a thickening tank. The overflow water from the thickening tank serves as the water source for the circulating water pump stations. The outlets of each circulating water pump station are connected to the circulating water inlet located in the upstream area.

[0008] The elevated water tank includes an inlet pipe, a first outlet pipe, a second outlet pipe, and a third outlet pipe. The inlet pipe is connected to an external water supply pipe. The first outlet pipe is connected to the production fresh water inlet of the crushing operation area, the grinding weak magnetic area, the grinding strong magnetic area, the gravity separation area, the flotation area, the concentrate and tailings conveying pump station, and each concentration stage. The circulating water pump station located between the grinding weak magnetic area and the grinding strong magnetic area is the first circulating water pump station. The second outlet pipe is connected to the water supply inlet of the first circulating water pump station, and the third outlet pipe is connected to the flushing water inlet of the concentrate and tailings conveying pump station.

[0009] Optionally, in the above-mentioned concentrator water layout system, the concentration step located between the grinding weak magnetic region and the grinding strong magnetic region is the first concentration step, the concentration step located between the grinding strong magnetic region and the gravity separation region is the second concentration step, the concentration step located between the gravity separation region and the flotation region is the third concentration step, and the concentration step located between the flotation region and the concentrate tailings conveying pump station is the fourth concentration step.

[0010] The circulating water pump station assembly includes a first circulating water pump station, a second circulating water pump station, a third circulating water pump station, and a fourth circulating water pump station. The first circulating water pump station is located at the first concentration stage, and its outlet is connected to the flushing water inlet of the crushing operation area and the circulating water inlet of the grinding weak magnetic field area, respectively. The second circulating water pump station is located at the second concentration stage, and its outlet is connected to the circulating water inlet of the grinding strong magnetic field area. The third circulating water pump station is located at the third concentration stage, and its outlet is connected to the circulating water inlet of the gravity separation area. The fourth circulating water pump station is located at the fourth concentration stage, and its outlet is connected to the circulating water inlet of the flotation area.

[0011] Optionally, in the above-mentioned ore dressing plant ring water arrangement system, the outlet of the second ring water pump station is connected to the inlet of the first ring water pump station.

[0012] Optionally, in the above-mentioned mineral processing plant ring water arrangement system, the outlet of the third ring water pump station is connected to the inlet of the second ring water pump station.

[0013] Optionally, in the above-mentioned mineral processing plant ring water arrangement system, the outlet of the fourth ring water pump station is connected to the inlet of the third ring water pump station.

[0014] Optionally, in the above-mentioned mineral processing plant ring water layout system, the concentrate and tailings conveying pump station includes a concentrate conveying pump station and a tailings conveying pump station, and the number of concentrate conveying pump stations includes multiple stations.

[0015] The third outlet pipeline of the elevated water tank is connected to the inlet of each of the concentrate conveying pump stations and the inlet of the tailings conveying pump station.

[0016] Optionally, in the above-mentioned mineral processing plant circulating water system, the first thickening stage includes a first concentrate thickening tank and a first tailings thickening tank. The concentrate outlet of the grinding weak magnetic region is connected to the inlet of the first concentrate thickening tank, and the tailings outlet of the grinding weak magnetic region is connected to the inlet of the first tailings thickening tank. The overflow outlets of the first concentrate thickening tank and the first tailings thickening tank are respectively connected to the inlet of the first circulating water pump station. The underflow outlet of the first concentrate thickening tank is connected to the inlet of the corresponding concentrate conveying pump station, and the underflow outlet of the first tailings thickening tank is connected to the inlet of the tailings conveying pump station.

[0017] Optionally, in the above-mentioned mineral processing plant's circulating water system, the second thickening stage includes a second concentrate thickening tank and a second tailings thickening tank. The concentrate outlet of the grinding magnetic field zone is connected to the inlet of the second concentrate thickening tank, and the tailings outlet of the grinding magnetic field zone is connected to the inlet of the second tailings thickening tank. The overflow outlets of the second concentrate thickening tank and the second tailings thickening tank are respectively connected to the inlet of the second circulating water pump station. The underflow outlet of the second concentrate thickening tank is connected to the inlet of the corresponding concentrate conveying pump station, and the underflow outlet of the second tailings thickening tank is connected to the inlet of the tailings conveying pump station.

[0018] Optionally, in the above-mentioned mineral processing plant's circulating water system, the third thickening stage includes a third concentrate thickening tank and a third tailings thickening tank. The concentrate outlet of the gravity separation zone is connected to the inlet of the third concentrate thickening tank, and the tailings outlet of the gravity separation zone is connected to the inlet of the third tailings thickening tank. The overflow outlets of the third concentrate thickening tank and the third tailings thickening tank are respectively connected to the inlet of the third circulating water pump station. The underflow outlet of the third concentrate thickening tank is connected to the inlet of the corresponding concentrate conveying pump station, and the underflow outlet of the third tailings thickening tank is connected to the inlet of the tailings conveying pump station.

[0019] Optionally, in the above-mentioned mineral processing plant's circulating water layout system, the fourth thickening stage includes a fourth concentrate thickening tank and a fourth tailings thickening tank. The number of fourth concentrate thickening tanks is at least one. The concentrate outlet of the flotation area is connected to the inlet of each of the fourth concentrate thickening tanks, and the tailings outlet of the flotation area is connected to the inlet of each of the fourth tailings thickening tanks. The overflow outlet of each of the fourth concentrate thickening tanks is connected to the inlet of the fourth circulating water pump station, and the overflow outlet of the fourth tailings thickening tank is connected to the inlet of the fourth circulating water pump station. The underflow outlet of the fourth concentrate thickening tank is connected to the inlet of the corresponding concentrate conveying pump station, and the underflow outlet of the fourth tailings thickening tank is connected to the inlet of the tailings conveying pump station.

[0020] As can be seen from the above scheme, the mine's circulating water system disclosed in this application, in actual use, provides fresh production water to various areas of the concentrator through an elevated water tank. This fresh water can also be supplied to various areas through a main fresh water pipe, and any surplus fresh water can be supplied to the first circulating water pump station as makeup water. When a single pipeline in the long-distance pipeline is shut down, the fresh water from the elevated water tank can be transported to the shut-down pipeline to flush it using the elevation difference, thereby reducing pipeline blockage caused by long-term retention of slurry during long-distance pipeline shutdowns. By setting up multiple circulating water pump stations, each pump station provides circulating water to the upstream area, achieving local water supply for each pump station and each concentrator area. This reduces the total energy consumption of circulating water transportation, the total length of the transportation pipeline, and thus reduces investment.

[0021] The mineral processing plant circulating water layout system disclosed in this application adopts a method of setting up an elevated water tank and multiple circulating water pump stations. Each circulating water pump station provides circulating water to the upstream area, realizing local water supply for each circulating water pump station and each mineral processing area. Compared with the existing method of using a single elevated water tank and a single low-level circulating water pump station, it can reduce the total length of the transportation pipeline and reduce the total energy consumption of circulating water transportation, thereby reducing investment. The use of multiple circulating water pump stations can achieve the effect of differentiated water supply and flexible water supply, and can avoid the pollution of other areas by circulating water containing flotation reagents, thus ensuring the quality of the mineral processing plant. This application is applicable to mountainous areas with narrow and long terrain and steep slopes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the mineral processing plant's circulating water layout system disclosed in the embodiments of this application.

[0024] Among them, 01 is the crushing operation area, 02 is the grinding weak magnetic field area, 03 is the first thickening stage, 031 is the first concentrate thickening tank, 032 is the first tailings thickening tank, 04 is the grinding strong magnetic field area, 05 is the second thickening stage, 051 is the second concentrate thickening tank, 052 is the second tailings thickening tank, 06 is the gravity separation area, 07 is the third thickening stage, 071 is the third concentrate thickening tank, 072 is the third tailings thickening tank, 08 is the flotation area, 09 is the fourth thickening stage, 091 is the fourth concentrate thickening tank, 092 is the fourth tailings thickening tank, 10 is the concentrate and tailings conveying pump station, 11 is the concentrate conveying pump station, and 12 is the tailings conveying pump station.

[0025] 100 is the high-level water tank, 110 is the inlet pipe, 120 is the first outlet pipe, 130 is the second outlet pipe, and 140 is the third outlet pipe.

[0026] 200 is the ring water pump station component, 210 is the first ring water pump station, 220 is the second ring water pump station, 230 is the third ring water pump station, and 240 is the fourth ring water pump station. Detailed Implementation

[0027] The core of this application is to disclose a circulating water arrangement system for a mineral processing plant to reduce the total energy consumption of circulating water transportation.

[0028] Currently, the general process flow of a mineral processing plant is as follows: Raw ore first enters the crushing and screening section, undergoing multi-stage crushing and screening in a closed-loop cycle to reach the required particle size for grinding; then it enters the grinding and classification section, where a closed-loop grinding system consisting of a grinding mill and classification equipment grinds the ore to the particle size at which the valuable minerals are liberated, forming a qualified slurry; this slurry enters the beneficiation section, where at least one method—gravity separation, flotation, or magnetic separation—is used to separate the valuable minerals from the gangue minerals, obtaining concentrate and tailings through one or a combination of different beneficiation methods; the concentrate can be one or more of these methods; the concentrate then enters the dewatering section, undergoing sedimentation concentration in a thickener and mechanical dewatering in a filter to finally obtain a product with the required moisture content; the tailings enter the tailings treatment section, where they are concentrated and then transported to a tailings dam for storage or dry discharge treatment; the concentrated and tailings dam overflow water is returned to the processing plant for recycling.

[0029] In mineral processing plants, circulating water refers to the process water recovered from the dewatering of concentrates and tailings and recycled back to the production stages. Existing circulating water usage typically involves two methods: one using a high-level water tank, where circulating water is first pumped to a high level and then flows by gravity to various areas. This requires collecting all water from various low-level thickeners and pumping it to the highest-level tank, and all circulating water must be supplied to the various water points in the lower areas. This method results in excessively high total energy consumption for transporting circulating water to the highest point, an excessively large high-level water tank volume, excessively long total pipeline length, and excessive investment. The other method uses a low-level circulating water pump station, where circulating water is first transported to the lowest point in the plant and then pumped to the various water points. This requires pumping all water from the lowest point, resulting in excessively high total energy consumption for transporting circulating water to the highest point, an excessively large circulating water pump station volume, excessively long total pipeline length, and excessively high investment. This application is an improvement based on the above background.

[0030] In this application, the thickening step is an operating platform within a specific elevation range in a mineral processing plant with a hillside or stepped layout. Its main function is to centrally arrange thickening, dewatering, and circulating water treatment equipment (such as thickening tanks and circulating water tanks), and to utilize the natural elevation difference with the upstream process to achieve gravity flow of slurry or wastewater, thereby optimizing the process and reducing energy consumption.

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] like Figure 1 As shown in the embodiment of this application, a circulating water layout system for a mineral processing plant is disclosed. The mineral processing plant includes a crushing operation area 01, a grinding weak magnetic field area 02, a grinding strong magnetic field area 04, a gravity separation area 06, a flotation area 08, and a concentrate and tailings conveying pump station 10. The crushing operation area 01, the grinding weak magnetic field area 02, the grinding strong magnetic field area 04, the gravity separation area 06, the flotation area 08, and the concentrate and tailings conveying pump station 10 are arranged in a stepped manner from high to low along the terrain. The crushing operation area 01, the grinding weak magnetic area 02, the grinding strong magnetic area 04, the gravity separation area 06, the flotation area 08, and the concentrate and tailings conveying pump station 10 are set up sequentially from high to low in the site. Concentration steps are set between the grinding weak magnetic area 02 and the grinding strong magnetic area 04, between the grinding strong magnetic area 04 and the gravity separation area 06, between the gravity separation area 06 and the flotation area 08, and between the flotation area 08 and the concentrate and tailings conveying pump station 10.

[0033] The mineral processing plant's circulating water system includes a high-level water tank 100 and a circulating water pump station assembly 200. The high-level water tank 100 is located in the crushing operation area 01, placing it at a high point. The circulating water pump station assembly 200 includes multiple circulating water pump stations, each corresponding to a thickening step. Each thickening step has a thickening tank, and the overflow water from the thickening tank serves as the water source for the circulating water pump stations. Specifically, each circulating water pump station includes a circulating water tank. The overflow water from the thickening tank first flows into the circulating water tank for storage and buffering, and then the circulating water pump stations draw water from the tank, pressurize it, and transport it to each water usage point. The outlet of each circulating water pump station is connected to the circulating water inlet located in the upstream area to provide circulating water to that area.

[0034] The elevated water tank 100 includes an inlet pipe 110, a first outlet pipe 120, a second outlet pipe 130, and a third outlet pipe 140. The inlet pipe 110 is connected to an external water supply pipe, through which fresh water for production is supplied to the elevated water tank. It should be noted that the fresh water for production here is to distinguish it from the circulating water. The first outlet pipeline 120 is connected to the production fresh water inlet of the crushing operation area 01, the grinding weak magnetic field area 02, the grinding strong magnetic field area 04, the gravity separation area 06, the flotation area 08, and the concentrate and tailings conveying pump station 10. The circulating water pump station located between the grinding weak magnetic field area 02 and the grinding strong magnetic field area 04 is the first circulating water pump station 210. The second outlet pipeline 130 is connected to the water supply inlet of the first circulating water pump station 210, providing fresh water to the station. The third outlet pipeline 140 is connected to the flushing water inlet of the concentrate and tailings conveying pump station 10, providing flushing water to the station. Valves are installed on the first outlet pipeline 120, the second outlet pipeline 130, and the third outlet pipeline 140 to control their on / off states.

[0035] In practical use, the elevated water tank 100 provides fresh water for production in various areas of the ore dressing plant. This fresh water can also be supplied to various areas through the main fresh water pipe. Excess fresh water can be supplied to the first loop pump station 210 as makeup water. When a single pipeline in the long-distance pipeline is shut down, the fresh water from the elevated water tank 100 can be transported to the shut-down pipeline to flush it using the elevation difference, reducing pipeline blockage caused by long-term retention of ore slurry during long-distance pipeline shutdowns. By setting up multiple loop pump stations, each providing loop water to upstream areas, local water supply to each loop pump station and each ore dressing area is achieved. This reduces the total energy consumption of loop water transportation, the total length of the transportation pipeline, and thus reduces investment.

[0036] It should be noted that fresh water is clean water that is introduced for the first time from an external water source (such as a river or tap water). Circulating water is wastewater generated during the mineral processing process (such as tailings water) that has been collected, treated, and reused within the plant.

[0037] The mineral processing plant circulating water layout system disclosed in this application adopts a method of setting up an elevated water tank 100 and multiple circulating water pump stations. Each circulating water pump station provides circulating water to the upstream area, realizing local water supply for each circulating water pump station and local water supply for each mineral processing area. Compared with the existing method of using one elevated water tank 100 to provide circulating water and one low-level circulating water pump station, it can reduce the total length of the transportation pipeline and reduce the total energy consumption of circulating water transportation, thereby reducing investment. Using multiple circulating water pump stations can achieve the effect of differentiated water supply and flexible water supply, and can avoid the pollution of other areas by circulating water containing flotation reagents, thus ensuring the indicators of the mineral processing plant. This application is applicable to mountainous areas with narrow and long terrain and steep slopes.

[0038] Specifically, the elevated water tank 100 is a new water tank, and its volume is preferably 3 to 6 times the net volume of the largest single pipeline in the long-distance pipeline transportation of concentrate and tailings, and between 2% and 5% of the total volume of the circulating water pumping station system (the total volume of all circulating water pumping stations). It is used to accommodate the makeup water required for the water balance of the entire concentrator. It is located on one side of the crushing operation area 01, and its elevation is 30m-40m higher than the platform of the crushing operation area 01. Compared with the scheme of using a single elevated water tank 100 to provide circulating water, the volume of the elevated water tank 100 can be reduced, thereby reducing the investment in the elevated water tank 100.

[0039] In some specific embodiments of this application, such as Figure 1 As shown, the concentration step between the grinding weak magnetic region 02 and the grinding strong magnetic region 04 is the first concentration step 03; the concentration step between the grinding strong magnetic region 04 and the gravity separation region 06 is the second concentration step 05; the concentration step between the gravity separation region 06 and the flotation region 08 is the third concentration step 07; and the area between the flotation region 08 and the concentrate and tailings conveying pump station 10 is the fourth concentration step 09. The crushing operation area 01, grinding weak magnetic region 02, first concentration step 03, grinding strong magnetic region 04, second concentration step 05, gravity separation region 06, third concentration step 07, flotation region 08, fourth concentration step 09, and concentrate and tailings conveying pump station 10 are arranged sequentially from high to low, forming a stepped layout. The height difference between each area is 15m-40m, with a total height difference of 150m-200m, to achieve gravity-flow conveying of the vast majority of the material slurry.

[0040] The circulating water pump station assembly 200 includes a first circulating water pump station 210, a second circulating water pump station 220, a third circulating water pump station 230, and a fourth circulating water pump station 240. The first circulating water pump station 210 is located at the first thickening stage 03. Its outlet is connected to the flushing water inlet of the crushing operation zone 01 and the circulating water inlet of the grinding weak magnetic region 02, respectively. In other words, the first circulating water pump station 210 provides flushing water to the crushing operation zone 01 and circulating water to the grinding weak magnetic region 02. The second circulating water pump station 220 is located at the second thickening stage 05. Its outlet is connected to the circulating water inlet of the grinding strong magnetic region 04, meaning it provides circulating water to the second thickening stage 05. The third circulating water pump station 230 is located at the third thickening stage 07. Its outlet is connected to the circulating water inlet of the gravity separation region 06, meaning it provides circulating water to the gravity separation region 06. The fourth ring water pump station is located at the fourth concentration step 09. The outlet of the fourth ring water pump station 240 is connected to the ring water inlet of the flotation zone 08, that is, the fourth ring water pump station 240 provides ring water to the flotation zone 08.

[0041] The mineral processing plant circulating water layout system disclosed in this application provides circulating water to each of the following areas by setting up multiple circulating water pump stations. Each circulating water pump station provides circulating water to the grinding weak magnetic region 02, grinding strong magnetic region 04, gravity separation region 06, and flotation region 08 respectively, thereby achieving local water supply to each mineral processing area and reducing energy consumption. At the same time, by setting up separate circulating water pump stations for each mineral processing area, the system can achieve differentiated water supply and flexible water supply, and can avoid the pollution of other areas' operations by circulating water containing flotation reagents.

[0042] Preferably, the volume of the first ring pump station 210 is 50%-80% of the total volume of the first concentration step 03, the volume of the second ring pump station 220 is 30%-50% of the total volume of the second concentration step 05, the volume of the third ring pump station 230 is 10%-20% of the total volume of the third concentration step 07, and the volume of the fourth ring pump station 240 is 5%-10% of the total volume of the fourth concentration step 09. Preferably, the upper edge of each ring pump station is 200mm higher than the ground surface of each concentration step.

[0043] In some specific embodiments of this application, such as Figure 1 As shown, the outlet of the second ring pump station 220 is connected to the inlet of the first ring pump station 210, meaning that the second ring pump station 220 provides water replenishment for the first ring pump station 210; the outlet of the third ring pump station 230 is connected to the inlet of the second ring pump station 220, meaning that the third ring pump station 230 provides water replenishment for the second ring pump station 220; and the outlet of the fourth ring pump station 240 is connected to the inlet of the third ring pump station 230, meaning that the fourth ring pump station 240 provides water replenishment for the third ring pump station 230.

[0044] Generally, for most mineral processing plants, the grinding product needs to be adjusted to a concentration of about 30% during the first separation stage, which is the largest point of circulating water consumption. Following the process flow, the circulating water consumption decreases sequentially from the grinding and separation zones to the lower zones (where "step" refers to elevation; a high-step zone is at higher elevation, and a low-step zone is at lower elevation). The overflow water from each thickening stage also decreases sequentially from higher to lower stages. Generally, except for the thickening tank below the first separation zone where the overflow water is less than the circulating water consumption for that zone, the overflow water from the thickening tanks below the grinding and separation zones to their respective circulating water pumping stations is greater than the corresponding circulating water consumption. Therefore, by using an upward method to sequentially transport water from the lower circulating water pumping stations to the upstream circulating water pumping stations to provide makeup water, this method not only achieves a balance between water inflow and outflow but also saves energy through sequential upward transport, further reducing the overall system energy consumption.

[0045] In some specific embodiments of this application, such as Figure 1 As shown, the concentrate and tailings conveying pump station 10 includes a concentrate conveying pump station 11 and a tailings conveying pump station 12, with multiple concentrate conveying pump stations 11. The third outlet pipe 140 of the elevated water tank 100 is connected to the inlet of each concentrate conveying pump station 11 and the inlet of each tailings conveying pump station 12, respectively, to provide flushing water for each concentrate conveying pump station. Specifically, the third outlet pipe 140 and the slurry pipeline are both connected to the inlet pipe of each conveying pump and are controlled by valve switching. During normal production, each conveying pump pumps slurry; when flushing is required, the system switches to the flushing water path, utilizing the static pressure of the elevated water tank 100 for flushing. When any concentrate conveying pump station 11 or tailings conveying pump station 12 is shut down, fresh water can be conveyed through the elevated water tank 100 to the shut-down pipeline, using the elevation difference to flush the pipeline and remove the slurry accumulated inside after the long-distance pipeline is shut down, thus avoiding pipeline blockage caused by long-term slurry retention during long-distance pipeline shutdown.

[0046] In some specific embodiments of this application, such as Figure 1As shown, the first concentration stage 03 includes a first concentrate concentration tank 031 and a first tailings concentration tank 032. The concentrate outlet of the grinding weak magnetic region 02 is connected to the inlet of the first concentrate concentration tank 031, and the tailings outlet of the grinding weak magnetic region 02 is connected to the inlet of the first tailings concentration tank 032. The overflow outlets of the first concentrate concentration tank 031 and the first tailings concentration tank 032 are respectively connected to the inlet of the first ring water pump station 210. That is, the overflow outlet of the first concentrate concentration tank 031 is connected to the inlet of the first ring water pump station 210, and the overflow water of the first concentrate concentration tank 031 is transported to the first ring water pump station 210 by gravity through the overflow pipe. The overflow outlet of the first tailings concentration tank 032 is connected to the inlet of the first ring water pump station 210, and the overflow water is transported to the first ring water pump station 210 by gravity. In other words, the circulating water of the first ring water pump station 210 comes from the overflow water of the first concentrate thickening tank 031 and the first tailings thickening tank 032. The underflow outlet of the first concentrate thickening tank 031 is connected to the inlet of the corresponding concentrate conveying pump station 11, and the underflow outlet of the first tailings thickening tank 032 is connected to the inlet of the tailings conveying pump station 12. That is, the slurry flowing out of the underflow outlet of the first concentrate thickening tank 031 flows by gravity to the corresponding concentrate conveying pump station 11, and the slurry flowing out of the underflow outlet of the first tailings thickening tank 032 flows by gravity to the corresponding tailings conveying pump station 12, and is then conveyed to the next process by the conveying pump.

[0047] Specifically, taking the first concentrate thickening tank 031 as an example, the concentrate separated by magnetic separation enters the first concentrate thickening tank 031. In the first concentrate thickening tank 031, gravity sedimentation separation occurs, with solid particles settling to the bottom of the tank and liquid forming a clear water zone above the first concentrate thickening tank 031. This clear water flows by gravity through the overflow outlet to the first circulating water pump station 210. The slurry flowing out of the bottom outlet of the first concentrate thickening tank 031 flows by gravity to the concentrate conveying pump station 11, and is then conveyed to the next process under the action of the conveying pump.

[0048] The second thickening stage 05 includes a second concentrate thickening tank 051 and a second tailings thickening tank 052. The concentrate outlet of the grinding magnetic field zone 04 is connected to the inlet of the second concentrate thickening tank 051, and the tailings outlet of the grinding magnetic field zone 04 is connected to the inlet of the second tailings thickening tank 052. The slurry enters the second concentrate thickening tank 051 or the second tailings thickening tank 052 by gravity. The overflow outlets of the second concentrate thickening tank 051 and the second tailings thickening tank 052 are respectively connected to the inlet of the second ring water pump station 220. That is, the ring water of the second ring water pump station 220 comes from the overflow of the second concentrate thickening tank 051 and the overflow of the second tailings thickening tank 052. The overflow water flows into the second ring water pump station 220 by gravity. The underflow outlet of the second concentrate thickening tank 051 is connected to the inlet of the corresponding concentrate conveying pump station 11, and the underflow outlet of the second tailings thickening tank 052 is connected to the inlet of the tailings conveying pump station 12. That is, the slurry flowing out of the underflow outlet of the second concentrate thickening tank 051 flows by gravity to the corresponding concentrate conveying pump station 11, and the slurry flowing out of the underflow outlet of the second tailings thickening tank 052 flows by gravity to the corresponding tailings conveying pump station 12, and is then conveyed to the next process by a conveying pump.

[0049] The third concentration stage 07 includes a third concentrate concentration tank 071 and a third tailings concentration tank 072. The concentrate outlet of the gravity separation zone 06 is connected to the inlet of the third concentrate concentration tank 071, and the tailings outlet of the gravity separation zone 06 is connected to the inlet of the third tailings concentration tank 072. The overflow outlets of the third concentrate concentration tank 071 and the third tailings concentration tank 072 are respectively connected to the inlet of the third ring water pump station 230. The underflow outlet of the third concentrate concentration tank 071 is connected to the inlet of the corresponding concentrate conveying pump station 11, and the underflow outlet of the third tailings concentration tank 072 is connected to the inlet of the tailings conveying pump station 12.

[0050] Specifically, taking the third concentrate thickening tank 071 as an example, the concentrate separated by gravity separation enters the third concentrate thickening tank 071. In the third concentrate thickening tank 071, gravity sedimentation separation occurs, with solid particles settling to the bottom of the tank and liquid forming a clear water zone above the third concentrate thickening tank 071. This clear water then flows by gravity through the overflow outlet to the third ring water pump station 230. The slurry flowing out of the bottom outlet of the third concentrate thickening tank 071 flows by gravity to the concentrate conveying pump station 11, where it is conveyed to the next process under the action of the conveying pump.

[0051] The fourth thickening stage 09 includes a fourth concentrate thickening tank 091 and a fourth tailings thickening tank 092. There is at least one fourth concentrate thickening tank 091. The concentrate outlet of the flotation zone 08 is connected to the inlet of each fourth concentrate thickening tank 091, and the tailings outlet of the flotation zone 08 is connected to the inlet of each fourth tailings thickening tank 092. The concentrate enters the fourth concentrate thickening tank 091 by gravity flow, and the tailings enter the fourth tailings thickening tank 092 by gravity flow, where they are separated by gravity settling. The overflow outlet of each fourth concentrate thickening tank 091 is connected to the inlet of the fourth ring water pump station 240, and the overflow outlet of the fourth tailings thickening tank 092 is connected to the inlet of the fourth ring water pump station 240. Therefore, the circulating water of the fourth ring water pump station 240 comes from the overflow water of the fourth concentrate thickening tank 091 and the fourth tailings thickening tank 092. The underflow outlet of the fourth concentrate thickening tank 091 is connected to the inlet of the corresponding concentrate conveying pump station 11, and the underflow outlet of the fourth tailings thickening tank 092 is connected to the inlet of the tailings conveying pump station 12.

[0052] Specifically, taking the fourth concentrate thickening tank 091 as an example, the concentrate separated by flotation enters the fourth concentrate thickening tank 091, where it undergoes gravity sedimentation separation. Solid particles settle to the bottom of the tank, while the liquid remains above the fourth concentrate thickening tank 091, forming a clear water zone. This clear water then flows by gravity through the overflow outlet to the fourth ring water pump station 240. The slurry flowing out of the bottom outlet of the fourth concentrate thickening tank 091 flows by gravity to the concentrate conveying pump station 11, where it is conveyed to the next process by the conveying pump.

[0053] It should be noted that, Figure 1 The fourth concentrate thickening tank 091 shown includes three tanks; the one shown is merely an example. The number of fourth concentrate thickening tanks 091 can be two, four, or more, depending on actual needs. Specifically, the exact number of fourth concentrate thickening tanks 091 can be determined based on the type of concentrate obtained from flotation, preferably one fourth concentrate thickening tank 091 for each type of concentrate. This method allows for flexible processing of concentrates of different qualities and avoids mixing of different types of concentrates.

[0054] In some specific embodiments of this application, the first ring water pump station 210 includes a first ring water pump pool and a first ring water pump. The inlet of the first ring water pump is connected to the outlet of the first ring water pump pool, and the outlet of the first ring water pump is connected to the flushing water inlet of the crushing operation area 01 and the ring water inlet of the grinding weak magnetic region 02, respectively, to provide flushing water for the crushing operation area 01 and ring water for the grinding weak magnetic region 02. The overflow outlets of the first concentrate thickening tank 031 and the first tailings thickening tank 032 are connected to the first ring water pump pool, respectively, to provide ring water for the first ring water pump pool. The second ring water pump station 220 includes a second ring water pump pool, a second ring water pump, and a first regulating pump. The inlet of the second ring water pump is connected to the outlet of the second ring water pump pool, and the outlet of the second ring water pump is connected to the ring water inlet of the grinding strong magnetic region 04, to provide ring water for the grinding strong magnetic region 04. The inlet of the first regulating pump is connected to the outlet of the second ring pump pool, and the outlet of the first regulating pump is connected to the inlet of the first ring pump pool to replenish water to the first ring pump pool. The overflow outlets of the second concentrate thickener 051 and the second tailings thickener 052 are respectively connected to the second ring pump pool to provide circulating water to the second ring pump pool by gravity flow.

[0055] The third ring pumping station 230 includes a third ring pump pool, a third ring pump, and a second regulating pump. The inlet of the third ring pump is connected to the outlet of the third ring pump pool, and the outlet of the third ring pump is connected to the ring water inlet of gravity separation zone 06. The inlet of the second regulating pump is connected to the outlet of the third ring pump pool, and the outlet of the second regulating pump is connected to the inlet of the second ring pump pool, to replenish water to the second ring pump pool. The overflow outlets of the third concentrate thickener 071 and the third tailings thickener 072 are connected to the third ring pump pool. The overflow water flows into the third ring pump pool by gravity, providing ring water to the third ring pump pool. The fourth ring pumping station 240 includes a fourth ring pump pool, a fourth ring pump, and a third regulating pump. The inlet of the fourth ring pump is connected to the outlet of the fourth ring pump pool, and the outlet of the fourth ring pump is connected to the ring water inlet of flotation zone 08, to provide ring water to flotation zone 08. The inlet of the third regulating pump is connected to the outlet of the fourth ring pump pool, and the outlet of the third regulating pump is connected to the inlet of the third ring pump pool to replenish water to the third ring pump pool. The overflow outlets of each of the fourth concentrate thickening tanks 091 and the fourth tailings thickening tank 092 are connected to the fourth ring pump pool to provide circulating water to the fourth ring pump pool by gravity flow.

[0056] The terminology used in the above embodiments is for the purpose of describing specific embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0057] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0058] It should be noted that in the description of the embodiments of this application, the terms "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A circulating water arrangement system for a mineral processing plant, characterized in that, The concentrator includes a crushing operation area (01), a grinding weak magnetic field area (02), a grinding strong magnetic field area (04), a gravity separation area (06), a flotation area (08), and a concentrate and tailings conveying pump station (10). The crushing operation area (01), the grinding weak magnetic field area (02), the grinding strong magnetic field area (04), the gravity separation area (06), the flotation area (08), and the concentrate and tailings conveying pump station (10) are arranged in a stepped manner from high to low along the terrain. Concentration steps are provided between the grinding weak magnetic field area (02) and the grinding strong magnetic field area (04), between the grinding strong magnetic field area (04) and the gravity separation area (06), between the gravity separation area (06) and the flotation area (08), and between the flotation area (08) and the concentrate and tailings conveying pump station (10). The mineral processing plant's circulating water system includes an elevated water tank (100) and a circulating water pump station assembly (200). The elevated water tank (100) is located in the crushing operation area (01). The circulating water pump station assembly (200) includes multiple circulating water pump stations, each of which corresponds to a specific thickening step. Each circulating water pump station is located on its corresponding thickening step. Each thickening step is equipped with a thickening tank. The overflow water from the thickening tank serves as the water source for the circulating water pump stations. The outlets of each circulating water pump station are connected to the circulating water inlet located in the upstream area. The high-level water tank (100) includes an inlet pipe (110), a first outlet pipe (120), a second outlet pipe (130), and a third outlet pipe (140). The inlet pipe (110) is connected to an external water supply pipe. The first outlet pipe (120) is connected to the crushing operation area (01), the grinding weak magnetic area (02), the grinding strong magnetic area (04), the gravity separation area (06), the flotation area (08), the concentrate and tailings conveying pump station (10), and the production fresh water inlet of each concentration stage. The circulating water pump station located between the grinding weak magnetic area (02) and the grinding strong magnetic area (04) is the first circulating water pump station (210). The second outlet pipe (130) is connected to the water supply port of the first circulating water pump station (210). The third outlet pipe (140) is connected to the flushing water inlet of the concentrate and tailings conveying pump station (10).

2. The mineral processing plant circulating water layout system as described in claim 1, characterized in that, The concentration step located between the grinding weak magnetic region (02) and the grinding strong magnetic region (04) is the first concentration step (03), the concentration step located between the grinding strong magnetic region (04) and the gravity separation region (06) is the second concentration step (05), the concentration step located between the gravity separation region (06) and the flotation region (08) is the third concentration step (07), and the concentration step located between the flotation region (08) and the concentrate tailings conveying pump station (10) is the fourth concentration step (09). The circulating water pump station assembly (200) includes a first circulating water pump station (210), a second circulating water pump station (220), a third circulating water pump station (230), and a fourth circulating water pump station (240). The first circulating water pump station (210) is located at the first concentration step (03), and its outlet is connected to the flushing water inlet of the crushing operation area (01) and the circulating water inlet of the grinding weak magnetic area (02), respectively. The second circulating water pump station (220) is located at the second... The outlet of the second ring water pump station (220) is connected to the ring water inlet of the grinding strong magnetic zone (04) in the concentration stage (05); the third ring water pump station (230) is located in the third concentration stage (07), and the outlet of the third ring water pump station (230) is connected to the ring water inlet of the gravity separation zone (06); the fourth ring water pump station is located in the fourth concentration stage (09), and the outlet of the fourth ring water pump station (240) is connected to the ring water inlet of the flotation zone (08).

3. The mineral processing plant circulating water layout system as described in claim 2, characterized in that, The outlet of the second ring water pump station (220) is connected to the inlet of the first ring water pump station (210).

4. The mineral processing plant circulating water layout system as described in claim 2, characterized in that, The outlet of the third ring pump station (230) is connected to the inlet of the second ring pump station (220).

5. The mineral processing plant circulating water layout system as described in claim 2, characterized in that, The outlet of the fourth ring pump station (240) is connected to the inlet of the third ring pump station (230).

6. The mineral processing plant circulating water layout system as described in claim 2, characterized in that, The concentrate and tailings conveying pump station (10) includes a concentrate conveying pump station (11) and a tailings conveying pump station (12), and the number of concentrate conveying pump stations (11) includes multiple stations; The third outlet pipeline (140) of the high-level water tank (100) is connected to the inlet of each of the concentrate conveying pump stations (11) and the inlet of the tailings conveying pump station (12).

7. The mineral processing plant circulating water layout system as described in claim 6, characterized in that, The first concentration stage (03) includes a first concentrate concentration tank (031) and a first tailings concentration tank (032). The concentrate outlet of the grinding weak magnetic region (02) is connected to the feed inlet of the first concentrate concentration tank (031). The tailings outlet of the grinding weak magnetic region (02) is connected to the feed inlet of the first tailings concentration tank (032). The overflow outlet of the first concentrate concentration tank (031) and the overflow outlet of the first tailings concentration tank (032) are respectively connected to the inlet of the first circulating water pump station (210). The underflow outlet of the first concentrate concentration tank (031) is connected to the inlet of the corresponding concentrate conveying pump station (11). The underflow outlet of the first tailings concentration tank (032) is connected to the inlet of the tailings conveying pump station (12).

8. The mineral processing plant circulating water layout system as described in claim 6, characterized in that, The second concentration stage (05) includes a second concentrate concentration tank (051) and a second tailings concentration tank (052). The concentrate outlet of the grinding magnetic field zone (04) is connected to the inlet of the second concentrate concentration tank (051). The tailings outlet of the grinding magnetic field zone (04) is connected to the inlet of the second tailings concentration tank (052). The overflow outlets of the second concentrate concentration tank (051) and the second tailings concentration tank (052) are respectively connected to the inlet of the second circulating water pump station (220). The underflow outlet of the second concentrate concentration tank (051) is connected to the inlet of the corresponding concentrate conveying pump station (11). The underflow outlet of the second tailings concentration tank (052) is connected to the inlet of the tailings conveying pump station (12).

9. The mineral processing plant circulating water layout system as described in claim 6, characterized in that, The third concentration stage (07) includes a third concentrate concentration tank (071) and a third tailings concentration tank (072). The concentrate outlet of the gravity separation zone (06) is connected to the feed inlet of the third concentrate concentration tank (071). The tailings outlet of the gravity separation zone (06) is connected to the feed inlet of the third tailings concentration tank (072). The overflow outlet of the third concentrate concentration tank (071) and the overflow outlet of the third tailings concentration tank (072) are respectively connected to the inlet of the third ring water pump station (230). The underflow outlet of the third concentrate concentration tank (071) is connected to the inlet of the corresponding concentrate conveying pump station (11). The underflow outlet of the third tailings concentration tank (072) is connected to the inlet of the tailings conveying pump station (12).

10. The mineral processing plant circulating water layout system as described in claim 6, characterized in that, The fourth concentration stage (09) includes a fourth concentrate concentration tank (091) and a fourth tailings concentration tank (092). The number of fourth concentrate concentration tanks (091) is at least one. The concentrate outlet of the flotation zone (08) is connected to the feed inlet of each of the fourth concentrate concentration tanks (091). The tailings outlet of the flotation zone (08) is connected to the feed inlet of each of the fourth tailings concentration tanks (092). The overflow outlet of each of the fourth concentrate concentration tanks (091) is connected to the inlet of the fourth ring water pump station (240). The overflow outlet of the fourth tailings concentration tank (092) is connected to the inlet of the fourth ring water pump station (240). The underflow outlet of the fourth concentrate concentration tank (091) is connected to the inlet of the corresponding concentrate conveying pump station (11). The underflow outlet of the fourth tailings concentration tank (092) is connected to the inlet of the tailings conveying pump station (12).

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