Circulating water and beneficiation return water supply system for slag beneficiation area and production system

Abstract

The invention discloses a slag ore dressing area circulating water and ore dressing return water supply system and a production system. A circulating water and beneficiation return water supply system for a slag beneficiation area comprises an existing water supply system and a newly-added water supply system which are jointly used for providing circulating water and beneficiation water for grinding and floating equipment in the slag beneficiation area. The existing water supply system comprises an existing recycling water tank, an existing circulating water tank, an existing cooling tower, an existing beneficiation water return pump set, an existing circulating water pump set and an existing circulating water return pipe. The newly-added water supply system comprises a newly-added recycling water tank, a newly-added circulating water tank, a newly-added cooling tower, a newly-added beneficiation water return pump set, a newly-added circulating water pump set and a newly-added circulating water return pipe. Under the condition that the occupied area is small, an original water supply system in a factory area is utilized, and part of facilities and pipe networks are newly added and transformed, so that the water use requirement of a transformed process system can be met, the transformation cost can be saved, the construction period can be shortened, and the occupied area is reduced.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical technology, specifically relating to a slag beneficiation area circulating water and beneficiation return water supply system and production system. Background Technology

[0002] With the rapid development of urbanization, existing metallurgical plants often need to renovate their facilities to expand production capacity, and the slag beneficiation area, as part of the plant, also needs to be upgraded. Among these upgrades, the slag beneficiation grinding system, flotation system, and magnetic separation system will be modified as much as possible based on the existing equipment, and some new equipment will be added to improve the overall processing capacity of the system.

[0003] With the upgrading and expansion of process equipment and processing capacity, the water consumption of the process system will also increase, and the existing circulating water and mineral processing recycled water supply systems will be difficult to meet the current demand. Related technologies directly modify and upgrade the existing circulating water and mineral processing recycled water supply systems, expanding the area of ​​the original recycled water pools and circulating water pools. This causes significant damage to the original system pipelines, resulting in high construction costs and long construction periods. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a slag beneficiation area circulating water and beneficiation return water supply system and production system with low construction cost and short construction period.

[0006] The slag beneficiation area circulating water and beneficiation return water supply system of this invention includes an existing water supply system and a new water supply system. The existing water supply system and the new water supply system are used together to provide circulating water and beneficiation water to the grinding and flotation equipment in the slag beneficiation area.

[0007] The existing water supply system includes an existing recycled water tank, an existing circulating water tank, an existing cooling tower, an existing mineral processing recycled water pump set, an existing circulating water pump set, and an existing circulating water return pipe. The inlet end of the existing mineral processing recycled water pump set is connected to the existing recycled water tank via an existing mineral processing water inlet pipe. The outlet end of the existing mineral processing recycled water pump set transports the recycled water to the slag beneficiation area to provide mineral processing water through an existing mineral processing water outlet pipe and / or a first newly added mineral processing water outlet pipe. The inlet end of the existing circulating water pump set is connected to the existing circulating water tank via an existing circulating water inlet pipe. The outlet end of the existing circulating water pump set transports circulating water to the slag beneficiation area to provide circulating water through an existing circulating water outlet pipe and / or a first newly added circulating water outlet pipe. The existing cooling tower is connected to the existing circulating water return pipe and the existing circulating water tank. The existing circulating water return pipe is used to transport part of the circulating water return from the slag beneficiation area to the existing cooling tower for cooling and storage in the existing circulating water tank.

[0008] The newly added water supply system includes a newly added recycled water tank, a newly added circulating water tank, a newly added cooling tower, a newly added mineral processing water return pump set, a newly added circulating water pump set, and a newly added circulating water return pipe. The inlet end of the newly added mineral processing water return pump set is connected to the newly added recycled water tank via a newly added mineral processing water inlet pipe. The outlet end of the newly added mineral processing water return pump set delivers mineral processing water to the slag beneficiation area via a second newly added mineral processing water outlet pipe to provide mineral processing water. The inlet end of the newly added circulating water pump set is connected to the newly added circulating water tank via a newly added circulating water inlet pipe. The outlet end of the newly added circulating water pump set delivers circulating water to the slag beneficiation area via a second newly added circulating water outlet pipe to provide circulating water. The newly added cooling tower is connected to the newly added circulating water return pipe and the newly added circulating water tank. The newly added circulating water return pipe is used to deliver a portion of the circulating water return from the slag beneficiation area to the newly added cooling tower for cooling and storage in the newly added circulating water tank.

[0009] The second newly added mineral processing water outlet pipe is arranged independently from the mineral processing water outlet pipe in the existing water supply system, or the second newly added mineral processing water outlet pipe is connected to at least part of the mineral processing water outlet pipe in the existing water supply system.

[0010] The second newly added circulating water outlet pipe is arranged independently from the circulating water outlet pipe in the existing water supply system, or the second newly added circulating water outlet pipe is connected to at least part of the circulating water outlet pipe in the existing water supply system.

[0011] The slag beneficiation area circulating water and beneficiation return water supply system of this invention, under the condition of limited land, utilizes the original water supply system of the plant area and realizes the rational design of the slag beneficiation area circulating water and beneficiation return water system by adding and modifying some facilities and pipelines. It can not only meet the water needs of the modified process system, but also save modification costs and construction period, and reduce the land area.

[0012] In some embodiments, the newly added circulating water tank is nested within the newly added recycled water tank, and the newly added circulating water tank and the newly added recycled water tank share a portion of the tank wall.

[0013] In some embodiments, the existing water recycling tank and the newly added water recycling tank are connected together;

[0014] And / or, the existing circulating water tank and the newly added circulating water tank are connected.

[0015] In some embodiments, the system further includes a plant production water supply system and a filter press water supply system. The plant production water supply system is connected to the existing reclaimed water tank and the existing circulating water tank via existing production water pipes. The plant production water supply system is connected to the newly added circulating water tank via a newly added production water pipe. The filter press water supply system is connected to the existing reclaimed water tank via an existing filter press water pipe and / or the filter press water supply system is connected to the newly added reclaimed water tank via a newly added filter press water pipe.

[0016] In some embodiments, there are multiple existing mineral processing return water pump groups, each of which includes two existing mineral processing return water pumps connected in parallel, one for standby and one for use. Part of the multiple existing mineral processing return water pump groups transports mineral processing water to the slag beneficiation area through existing mineral processing water outlet pipes to provide mineral processing water; another part of the multiple existing mineral processing return water pump groups transports mineral processing water to the slag beneficiation area through a first newly added mineral processing water outlet pipe to provide mineral processing water.

[0017] The newly added mineral processing return water pump group is at least one, and each of the newly added mineral processing return water pump groups includes two newly added mineral processing return water pumps, one for standby and one for use, which are connected in parallel.

[0018] The existing circulating water pump group is at least one, and each existing circulating water pump group includes two existing circulating water pumps that are connected in parallel, one for standby and one for use.

[0019] The number of newly added circulating water pump sets is at least one, and each of the newly added circulating water pump sets includes two newly added circulating water pumps, one for standby and one for use, which are connected in parallel.

[0020] In some embodiments, the second newly added mineral processing water outlet pipe of the newly added mineral processing return water pump set has a branch pipe, which is connected to the existing mineral processing water outlet pipe and / or the first newly added mineral processing water outlet pipe.

[0021] In some embodiments, the existing mineral processing return water pump group and the newly added mineral processing return water pump group have the same pumping flow rate, or at least some of the pump groups have different pumping flow rates; the existing circulating water pump group and the newly added circulating water pump group have the same pumping flow rate, or at least some of the pump groups have different pumping flow rates.

[0022] In some embodiments, the total water supply for mineral processing of the existing water supply system and the newly added water supply system is greater than the total water demand for mineral processing in the slag beneficiation area, and the total circulating water supply of the existing water supply system and the newly added water supply system is greater than the total circulating water demand in the slag beneficiation area.

[0023] The slag beneficiation production system of this invention includes:

[0024] The water supply system is a slag beneficiation area circulating water and beneficiation return water supply system as described in any of the above embodiments;

[0025] A grinding and flotation device, which is connected to the existing water supply system and the newly added water supply system to provide mineral processing water and circulating water for the grinding and flotation device.

[0026] In some embodiments, the flotation equipment includes a flotation system, a grinding system, and a magnetic separation system, wherein the number of the flotation system, the grinding system, and the magnetic separation system is one or more.

[0027] And / or, the grinding and flotation equipment includes existing grinding and flotation equipment and newly added grinding and flotation equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the slag beneficiation area circulating water and beneficiation return water supply system according to an embodiment of the present invention.

[0029] Figure label:

[0030] 11. Existing recycled water tank; 12. Existing circulating water tank; 13. Existing cooling tower; 14. Existing mineral processing return water pump; 141. First existing mineral processing return water pump group; 142. Second existing mineral processing return water pump group; 143. Existing mineral processing water inlet pipe; 144. Existing mineral processing water outlet pipe; 145. First newly added mineral processing water outlet pipe; 15. Existing circulating water pump group; 151. Existing circulating water pump; 152. Existing circulating water inlet pipe; 153. Existing circulating water outlet pipe; 16. Existing circulating water return pipe;

[0031] 21. New recycled water tank; 22. New circulating water tank; 23. New cooling tower; 24. New mineral processing return water pump set; 241. New mineral processing return water pump; 242. New mineral processing water inlet pipe; 243. Second new mineral processing water outlet pipe; 244. Branch pipeline; 25. New circulating water pump set; 251. New circulating water pump; 252. New circulating water inlet pipe; 253. Second new circulating water outlet pipe; 26. New circulating water return pipe;

[0032] 3. Plant production water supply system; 31. Existing production water pipes; 32. New production water pipes;

[0033] 4. Filter press water supply system; 41. New filter press water pipe;

[0034] 51. Existing flotation system equipment; 52. Upgraded flotation / magnetic separation system equipment; 53. Newly added grinding system equipment. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] See Figure 1 The following describes the slag beneficiation area circulating water and beneficiation return water supply system according to an embodiment of the present invention.

[0037] This invention provides a circulating water and mineral processing return water supply system for slag beneficiation areas, including an existing water supply system and a newly added water supply system. The existing water supply system and the newly added water supply system are used together to provide circulating water and mineral processing water for the grinding and flotation equipment in the slag beneficiation area.

[0038] During the renovation and upgrading of slag beneficiation areas, grinding and flotation equipment is replaced, upgraded, or additional equipment is added to increase production capacity. The existing and newly added water supply systems in this embodiment of the invention can provide sufficient circulating water and beneficiation water for the grinding and flotation equipment. While making full use of the existing water supply system, the water demand of the grinding and flotation equipment is met by adding and modifying some facilities and pipelines.

[0039] The existing water supply system includes the existing recycled water tank 11, the existing circulating water tank 12, the existing cooling tower 13, and the existing mineral processing return water pump set (including...). Figure 1The existing existing mineral processing return water pump group 141 and the existing existing mineral processing return water pump group 142, the existing circulating water pump group 15 and the existing circulating water return water pipe 16 shown are connected to the existing mineral processing water inlet pipe 143 through the existing mineral processing water inlet pipe 143 through the existing mineral processing water outlet pipe 144 and / or the first newly added mineral processing water outlet pipe 145 to transport the mineral processing return water to the slag beneficiation area to provide mineral processing water.

[0040] The existing mineral processing return water pump unit draws water from the existing return water pool 11 through the existing mineral processing water inlet pipe 143, and then transports it to the grinding and flotation equipment in the slag beneficiation area through the existing mineral processing water outlet pipe 144 and / or the first newly added mineral processing water outlet pipe 145. Depending on the actual application needs, the existing mineral processing water outlet pipe 144 can be used, or part of the pipeline network can be modified to supply water through the newly arranged first newly added mineral processing water outlet pipe 145.

[0041] The inlet end of the existing circulating water pump set 15 is connected to the existing circulating water pool 12 through the existing circulating water inlet pipe 152. The outlet end of the existing circulating water pump set 15 delivers circulating water to the slag beneficiation area through the existing circulating water outlet pipe 153 and / or the first newly added circulating water outlet pipe to provide circulating water. The existing cooling tower 13 is connected to the existing circulating water return pipe 16 and the existing circulating water pool 12. The existing circulating water return pipe 16 is used to deliver part of the circulating water return water from the slag beneficiation area to the existing cooling tower 13 for cooling and storage in the existing circulating water pool 12.

[0042] The existing circulating water pump set 15 draws water from the existing circulating water pool 12 through the existing circulating water inlet pipe 152, and then transports it to the grinding and flotation equipment in the slag beneficiation area through the existing circulating water outlet pipe 153 and / or the first newly added circulating water outlet pipe. Depending on the actual application requirements, the existing circulating water outlet pipe 153 may be used, or part of the pipeline network may be modified to supply water through the newly arranged first newly added circulating water outlet pipe. After passing through the grinding and flotation equipment, the circulating water is transported to the existing cooling tower 13 through the existing circulating water return pipe 16 for cooling and temperature reduction, and finally stored in the existing circulating water pool 12, ensuring that the circulating water system has sufficient water volume and can achieve continuous recycling.

[0043] The new water supply system includes a new recycled water tank 21, a new circulating water tank 22, a new cooling tower 23, a new mineral processing water return pump set 24, a new circulating water pump set 25, and a new circulating water return pipe 26. The inlet end of the new mineral processing water return pump set 24 is connected to the new recycled water tank 21 through a new mineral processing water inlet pipe 242. The outlet end of the new mineral processing water return pump set 24 transports mineral processing water to the slag beneficiation area through a second new mineral processing water outlet pipe 243 to provide mineral processing water.

[0044] The newly added mineral processing return water pump set 24 draws water from the newly added return water pool 21 through the newly added mineral processing water inlet pipe 242, and then transports it to the grinding and flotation equipment in the slag beneficiation area through the second newly added mineral processing water outlet pipe 243, so as to provide mineral processing water together with the existing mineral processing return water pump set and meet the total water demand of the grinding and flotation equipment for mineral processing.

[0045] The inlet end of the newly added circulating water pump set 25 is connected to the newly added circulating water pool 22 through the newly added circulating water inlet pipe 252. The outlet end of the newly added circulating water pump set 25 delivers circulating water to the slag beneficiation area through the second newly added circulating water outlet pipe 253 to provide circulating water. The newly added cooling tower 23 is connected to the newly added circulating water return pipe 26 and the newly added circulating water pool 22. The newly added circulating water return pipe 26 is used to deliver part of the circulating water return water from the slag beneficiation area to the newly added cooling tower 23 for cooling and storage in the newly added circulating water pool 22.

[0046] The newly added circulating water pump set 25 draws water from the newly added circulating water pool 22 through the newly added circulating water inlet pipe 252, and then transports it to the grinding and flotation equipment in the slag beneficiation area through the second newly added circulating water outlet pipe 253, so as to provide circulating water together with the existing circulating water pump set 15 and meet the total water demand of the grinding and flotation equipment. After passing through the grinding and flotation equipment, the circulating water is transported to the newly added cooling tower 23 through the newly added circulating water return pipe 26 for cooling and temperature reduction, and finally stored in the newly added circulating water pool 22 to ensure that the circulating water system has sufficient water volume and can achieve continuous recycling.

[0047] The second newly added mineral processing water outlet pipe 243 is arranged independently from the existing mineral processing water outlet pipe in the water supply system, allowing it to supply water to different grinding and flotation equipment. Alternatively, the second newly added mineral processing water outlet pipe 243 can be connected to at least a portion of the existing mineral processing water outlet pipes in the water supply system. For example, when there are multiple grinding and flotation equipment that all require mineral processing water, some of the mineral processing water for the grinding and flotation equipment can be supplied by the existing mineral processing water outlet pipe 144, some by the newly added mineral processing water outlet pipe, and some by a combination of both.

[0048] The second newly added circulating water outlet pipe 253 is arranged independently from the circulating water outlet pipe in the existing water supply system, allowing for the separate supply of water to different grinding and flotation devices. Alternatively, the second newly added circulating water outlet pipe 253 can be connected to at least a portion of the circulating water outlet pipes in the existing water supply system. For example, when there are multiple grinding and flotation devices that all require circulating water, the circulating water for some of the grinding and flotation devices can be supplied by the existing circulating water outlet pipe 153, the circulating water for some of the grinding and flotation devices can be supplied by the newly added circulating water outlet pipe, and the circulating water for some of the grinding and flotation devices can be supplied jointly by the existing circulating water outlet pipe 153 and the newly added circulating water outlet pipe.

[0049] The slag beneficiation area circulating water and beneficiation return water supply system of this invention, under the condition of limited land, utilizes the original water supply system of the plant area and realizes the rational design of the slag beneficiation area circulating water and beneficiation return water system by adding and modifying some facilities and pipelines. It can not only meet the water needs of the modified process system, but also save modification costs and construction period, and reduce the land area.

[0050] In some embodiments, the newly added circulating water tank 22 is nested within the newly added recycled water tank 21, and the newly added circulating water tank and the newly added recycled water tank 21 share a portion of the tank wall. It is understood that by nesting the newly added circulating water tank 22 within the newly added recycled water tank 21, the two can share a portion of the outer wall, thereby reducing the amount of construction work, improving the utilization rate of building space, and further shortening the construction period.

[0051] In some embodiments, the existing recycled water tank 11 and the newly added recycled water tank 21 are connected together. By connecting the existing recycled water tank 11 and the newly added recycled water tank 21 with a connecting pipe, the mineral processing water between the two can be complementary, thereby improving the stability of the system.

[0052] In practical applications, the existing recycled water tank 11 has a relatively large effective volume, which provides a margin for future equipment upgrades and renovations. However, it may still not meet the current needs of the grinding and flotation equipment. The new mineral processing water return pump group 24, which is matched with the new recycled water tank 21, can use the mineral processing water in the existing recycled water tank 11 to ensure the water supply of the new mineral processing water return pump group 24, reduce the effective volume of the new recycled water tank 21, reduce construction costs and land area, reduce damage to the original pipeline network and other facilities, and improve the stability of the system.

[0053] Similarly, the existing circulating water tank 12 and the newly added circulating water tank 22 are connected (not shown in the figure). By connecting the existing circulating water tank 12 and the newly added circulating water tank 22 with a connecting pipe, the circulating water between the two can be complementary, improving the stability of the system. Of course, depending on the actual location of the existing circulating water tank 12 and the newly added circulating water tank 22 in the actual plant area, the two can be not connected and operate independently with their respective supporting circulating water pump sets.

[0054] In some embodiments, the slag beneficiation area circulating water and beneficiation return water supply system further includes a plant production water supply system 3 and a filter press water supply system 4. The plant production water supply system 3 is connected to the existing return water tank 11 and the existing circulating water tank 12 through an existing production water pipe 31. The plant production water supply system 3 is connected to the newly added circulating water tank 22 through a newly added production water pipe 32. The filter press water supply system 4 is connected to the existing return water tank 11 through an existing filter press water pipe and / or the filter press water supply system 4 is connected to the newly added return water tank 21 through a newly added filter press water pipe 41.

[0055] The water replenishment for the existing recycled water tank 11 and the newly added recycled water tank 21 is the effluent from the thickener and filter press system in the filter press water supply system 4. During the renovation and upgrading process, the thickener and filter press system are often upgraded and renovated at the same time. In this embodiment, the filter press water supply system 4 is used to replenish the newly added recycled water tank 21 separately, and the connection structure between the existing recycled water tank 11 and the newly added recycled water tank 21 is used to realize the connection and complementarity between the two recycled water tanks.

[0056] On the one hand, the plant's production water supply system 3 supplies water to the existing recycled water tank 11 and the existing circulating water tank 12 through the existing production water pipe 31, without requiring any damage to the original pipe network and other facilities. On the other hand, the plant's production water supply system 3 supplies water to the newly added circulating water tank 22 through the newly added production water pipe 32.

[0057] In this embodiment, it is not necessary to set up a pipeline network in the plant production water supply system 3 to supply water to the newly added recycled water tank 21. In the case of insufficient water supply from the filter press water supply system 4, the plant production water supply system 3 can supply water to the existing recycled water tank 11 through the connection structure between the existing recycled water tank 11 and the newly added recycled water tank 21.

[0058] In some embodiments, there are multiple existing mineral processing return water pump groups, each of which includes two existing mineral processing return water pumps 14 connected in parallel, one for standby and one for use. Part of the multiple existing mineral processing return water pump groups transports mineral processing water to the slag beneficiation area through existing mineral processing water outlet pipes 144 to provide mineral processing water; another part of the multiple existing mineral processing return water pump groups transports mineral processing water to the slag beneficiation area through a first newly added mineral processing water outlet pipe 145 to provide mineral processing water.

[0059] There is at least one newly added mineral processing return water pump group 24, and each newly added mineral processing return water pump group 24 includes two newly added mineral processing return water pumps 241, one for standby and one for use, and connected in parallel; there is at least one existing circulating water pump group 15, and each existing circulating water pump group 15 includes two existing circulating water pumps 151, one for standby and one for use, and connected in parallel; there is at least one newly added circulating water pump group 25, and each newly added circulating water pump group 25 includes two newly added circulating water pumps 251, one for standby and one for use, and connected in parallel.

[0060] like Figure 1 As shown, in this embodiment, there are two existing mineral processing return water pump sets, namely the first existing mineral processing return water pump set 141 and the second existing mineral processing return water pump set 142, and one newly added mineral processing return water pump set 24, one existing circulating water pump set 15, and one newly added circulating water pump set 25.

[0061] Having two water pumps, one for backup and one for standby, can ensure system stability, prevent operational failures or shutdowns of the grinding and floating equipment due to the failure of some pumps, and facilitate subsequent inspection, maintenance, and equipment replacement.

[0062] Furthermore, the second newly added mineral processing water outlet pipe 243 of the newly added mineral processing return water pump set 24 has a branch pipe 244, which is connected to the existing mineral processing water outlet pipe 144 and / or the first newly added mineral processing water outlet pipe 145. A control valve can be installed on the branch pipe 244 to regulate the flow rate on the branch pipe 244, so as to distribute part of the flow to other equipment, enabling the equipment to work together and ensuring the stability of the system's water supply.

[0063] In some embodiments, the existing mineral processing return water pump set and the newly added mineral processing return water pump set 24 have the same pumping flow rate, or at least some of the pump sets have different pumping flow rates; the existing circulating water pump set 15 and the newly added circulating water pump set 25 have the same pumping flow rate, or at least some of the pump sets have different pumping flow rates.

[0064] Understandably, the power of the water pump can be determined based on the water demand of the corresponding grinding and flotation equipment. Some grinding and flotation equipment can be supplied with water by a single water pump, while others can be supplied by multiple water pumps working together. Higher-powered water pumps can supply water to multiple grinding and flotation equipment simultaneously. By adding new water pumps and pipe networks, the water supply can be adjusted to meet the different water supply needs of the various grinding and flotation equipment, while minimizing changes or replacements to existing pumps and pipe networks.

[0065] In this embodiment, the total water supply from the existing and newly added water supply systems exceeds the total water demand for mineral processing in the slag beneficiation area, and the total circulating water supply from both systems exceeds the total circulating water demand. Considering factors such as construction volume, construction period, and construction cost, the aim is to minimize damage to the existing water supply network and other facilities. By coordinating with the new water supply network and facilities, the system provides mineral processing water and circulating water to the upgraded grinding and flotation equipment in the slag beneficiation area, ensuring the normal and stable operation of the equipment.

[0066] The slag beneficiation production system of this invention includes a water supply system and a grinding and flotation device. The water supply system is a slag beneficiation area circulating water and beneficiation return water supply system as described in any of the above embodiments. The grinding and flotation device is connected to the existing water supply system and the newly added water supply system to provide beneficiation water and circulating water for the grinding and flotation device.

[0067] The grinding and flotation equipment includes flotation system equipment, grinding system equipment, and magnetic separation system equipment. The number of flotation system equipment, grinding system equipment, and magnetic separation system equipment can be one or more, and part of the grinding and flotation equipment can be existing grinding and flotation equipment, while the other part is newly added grinding and flotation equipment.

[0068] This invention, by adding and modifying some facilities and pipelines based on the existing plant water supply system, achieves a reasonable design of the circulating water and mineral processing return water system in the slag beneficiation area of ​​the metallurgical plant. This not only meets the water needs of the modified process system, but also saves on modification costs and construction time. At the same time, by utilizing the existing plant water supply system, the scale of new facilities and equipment for circulating water and mineral processing return water in the slag beneficiation area can be reduced, thereby saving land.

[0069] The following example illustrates the renovation of a metallurgical plant:

[0070] A metallurgical plant is upgrading its slag beneficiation area, increasing its processing capacity from 1500 t / d to 3500 t / d. The original slag beneficiation area had one grinding and flotation workshop containing one grinding system, one flotation system, and one magnetic separation system. After the upgrade, a new grinding plant will be built, and the existing grinding and flotation plant will be expanded. The expanded area will add one flotation system and one magnetic separation system, while the existing magnetic separation system in the original grinding and flotation workshop will be dismantled.

[0071] The renovated equipment layout is roughly as follows Figure 1 The existing flotation system equipment 51, the modified flotation / magnetic separation system equipment 52, and the newly added grinding system equipment 53 are shown in the figure.

[0072] (1) Existing slag beneficiation circulating water and beneficiation recycled water supply system:

[0073] The original plant slag beneficiation area circulating water and beneficiation recycled water supply system includes 1 slag beneficiation recycled water pool, 1 circulating water pool, 1 circulating cooling tower, 4 beneficiation recycled water pumps (two sets of beneficiation recycled water pumps with one standby) and 2 circulating water pumps (one set of circulating water pumps with one standby).

[0074] Of the four mineral processing water pumps, two (one in use and one on standby) have a flow rate of 85 cubic meters per hour, while the other two (one in use and one on standby) have a flow rate of 150 cubic meters per hour. There are also two circulating water pumps, one in use and one on standby, with a flow rate of 55 cubic meters per hour.

[0075] Water supply capacity and water demand are shown in the table below:

[0076]

[0077] (2) Modified metallurgical plant slag beneficiation circulating water and beneficiation recycled water supply system:

[0078] To meet the water demand of circulating water and mineral processing reuse water in the slag beneficiation area after the renovation, without changing the original circulating water and mineral processing reuse water facilities, one new slag beneficiation reuse water pool, one circulating water pool, one circulating cooling tower, two mineral processing reuse water pumps, and two circulating water pumps will be added.

[0079] Two new mineral processing water pumps were added, one for operation and one for standby, both with a flow rate of 380 cubic meters per hour; two circulating water pumps were added, one for operation and one for standby, both with a flow rate of 55 cubic meters per hour.

[0080] Water supply capacity and water demand are shown in the table below:

[0081]

[0082] The water supply plan for the circulating water and mineral processing water in the slag beneficiation area after the renovation is as follows:

[0083] The original circulating water pumps in the plant area (Q = 55 cubic meters per hour) will continue to supply water to the circulating water system of the renovated grinding and flotation workshop using the original pipeline network.

[0084] The existing slag beneficiation water pump (Q = 88 cubic meters per hour) in the plant area still uses the original pipeline network to supply water to the flotation system equipment in the unmodified area of ​​the grinding and flotation workshop.

[0085] The plant has added a circulating water pump (Q = 55 cubic meters per hour) to supply circulating water for the newly built grinding system.

[0086] The newly added slag beneficiation return water pump (Q=380 cubic meters per hour) and the existing slag beneficiation return water pump (Q=150 cubic meters per hour) in the plant area together supply water for the newly built grinding system equipment, the newly added flotation system equipment in the grinding and flotation workshop, and the magnetic separation system equipment in the renovated grinding and flotation workshop.

[0087] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0088] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0089] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0090] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0091] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A system for recycling water in a mineral separation area and supplying water from the recycled water, the system being characterized by, The existing water supply system and the new water supply system are used jointly to provide circulating water and dressing water for the grinding and flotation equipment in the ore dressing area. The existing water supply system includes an existing recycled water pool, an existing circulating water pool, an existing cooling tower, an existing dressing water return pump group, an existing circulating water pump group and an existing circulating water return pipe, the inlet end of the existing dressing water return pump group is connected with the existing recycled water pool through an existing dressing water inlet pipe, the outlet end of the existing dressing water return pump group sends dressing water return to the ore dressing area through an existing dressing water outlet pipe and / or a first new dressing water outlet pipe to provide dressing water; the inlet end of the existing circulating water pump group is connected with the existing circulating water pool through an existing circulating water inlet pipe, the outlet end of the existing circulating water pump group sends circulating water to the ore dressing area through an existing circulating water outlet pipe and / or a first new circulating water outlet pipe to provide circulating water, the existing cooling tower is connected with the existing circulating water return pipe and the existing circulating water pool, and the existing circulating water return pipe is used to send part of the circulating water return of the ore dressing area to the existing cooling tower for cooling and storage in the existing circulating water pool. The new water supply system includes a new recycled water pool, a new circulating water pool, a new cooling tower, a new dressing water return pump group, a new circulating water pump group and a new circulating water return pipe, the inlet end of the new dressing water return pump group is connected with the new recycled water pool through a new dressing water inlet pipe, the outlet end of the new dressing water return pump group sends dressing water to the ore dressing area through a second new dressing water outlet pipe to provide dressing water; the inlet end of the new circulating water pump group is connected with the new circulating water pool through a new circulating water inlet pipe, the outlet end of the new circulating water pump group sends circulating water to the ore dressing area through a second new circulating water outlet pipe to provide circulating water, the new cooling tower is connected with the new circulating water return pipe and the new circulating water pool, and the new circulating water return pipe is used to send part of the circulating water return of the ore dressing area to the new cooling tower for cooling and storage in the new circulating water pool. The second new dressing water outlet pipe is independently arranged with the dressing water outlet pipe in the existing water supply system, or the second new dressing water outlet pipe is communicated with at least part of the dressing water outlet pipe in the existing water supply system. The second new circulating water outlet pipe is independently arranged with the circulating water outlet pipe in the existing water supply system, or the second new circulating water outlet pipe is communicated with at least part of the circulating water outlet pipe in the existing water supply system.

2. The system according to claim 1, wherein, The new circulating water pool is nested in the new recycled water pool, and the new circulating water pool and the new recycled water pool share part of the pool wall.

3. The system according to claim 1, wherein the system further comprises a water supply pipe for supplying the water to the water tank. The existing recycled water pool and the new recycled water pool are communicated. And / or, the existing circulating water pool and the new circulating water pool are communicated.

4. The system according to claim 3, wherein the system further comprises a water supply pipe for supplying the water to the water tank. Further comprising a plant production water supply system and a filter water supply system, the plant production water supply system is communicated with the existing recycling water tank and the existing circulating water tank through an existing production water pipe, the plant production water supply system is communicated with the new circulating water tank through a new production water pipe, the filter water supply system is communicated with the existing recycling water tank through an existing filter water pipe and / or the filter water supply system is communicated with the new recycling water tank through a new filter water pipe.

5. The system according to claim 1, wherein the system further comprises a water supply system for supplying water to the water circulating system and the water circulating system. The existing beneficiation backwater pump group is multiple, each existing beneficiation backwater pump group comprises two existing beneficiation backwater pumps in one spare one use and parallel arrangement, part of the multiple existing beneficiation backwater pump groups transports beneficiation water to the slag beneficiation area through an existing beneficiation water outlet pipe to provide beneficiation water; another part of the multiple existing beneficiation backwater pump groups transports beneficiation water to the slag beneficiation area through a first new beneficiation water outlet pipe to provide beneficiation water; The new beneficiation backwater pump group is at least one, each new beneficiation backwater pump group comprises two new beneficiation backwater pumps in one spare one use and parallel arrangement; The existing circulating water pump group is at least one, each existing circulating water pump group comprises two existing circulating water pumps in one spare one use and parallel arrangement; The new circulating water pump group is at least one, each new circulating water pump group comprises two new circulating water pumps in one spare one use and parallel arrangement.

6. The system according to claim 5, wherein the system further comprises a water supply pipe for supplying the water to the water tank. The second new beneficiation water outlet pipe of the new beneficiation backwater pump group has a branch pipeline, which is communicated with the existing beneficiation water outlet pipe and / or the first new beneficiation water outlet pipe.

7. The system according to claim 5, wherein the system further comprises a water supply pipe for supplying the water to the water tank. The pumping flow of the existing beneficiation backwater pump group and the new beneficiation backwater pump group is the same, or the pumping flow of at least part of the pump groups is different; the pumping flow of the existing circulating water pump group and the new circulating water pump group is the same, or the pumping flow of at least part of the pump groups is different.

8. The system according to any one of claims 1 to 7, wherein, The total beneficiation water supply amount of the existing water supply system and the new water supply system is greater than the total beneficiation water demand amount of the slag beneficiation area, and the total circulating water supply amount of the existing water supply system and the new water supply system is greater than the total circulating water demand amount of the slag beneficiation area.

9. A slag mineral separation production system characterized by, Comprise: A water supply system, the water supply system is a slag beneficiation area circulating water and beneficiation backwater supply system as claimed in any one of claims 1 to 8; A grinding and floating equipment, the grinding and floating equipment is connected with the existing water supply system and the new water supply system to provide beneficiation water and circulating water for the grinding and floating equipment.

10. The slime beneficiation production system according to claim 9, characterized in that, The grinding and floating equipment comprises a flotation system device, a grinding system device and a magnetic separation system device, the number of the flotation system device, the grinding system device and the magnetic separation system device is one or more; And / or, the grinding and floating equipment comprises an existing grinding and floating equipment and a new grinding and floating equipment.

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