CN217323583U - Underground mine wastewater zero discharge system - Google Patents
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- CN217323583U CN217323583U CN202221068775.9U CN202221068775U CN217323583U CN 217323583 U CN217323583 U CN 217323583U CN 202221068775 U CN202221068775 U CN 202221068775U CN 217323583 U CN217323583 U CN 217323583U
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Abstract
The utility model provides an underground mine wastewater zero discharge system, which comprises a water utilization system, a return water supply system and a fresh water supply system, wherein the return water supply system is used for providing a water source for the water utilization system; the water outlet ends of the return water supply system and the fresh water supply system are connected with the water inlet end of the water using system; the water system comprises a mining system, a filling system and a mineral processing system; the fresh water supply system comprises a downhole water burst system and an external water system; slurry for blocking water is arranged at the fracture of the tensile fracture of the underground water burst system so as to block water of the underground water burst system and realize zero discharge of underground mine wastewater. The utility model discloses a set up the thick liquid in the cracked crack department of open nature and carry out water shutoff in order to reach and predetermine the water shutoff rate, then carry out the supply through external water system, make the water that gushes out in the pit all utilize, realize the green exploitation of waste water zero release on the whole.
Description
Technical Field
The utility model relates to a mine waste water treatment technical field especially relates to an underground mine waste water zero discharge system.
Background
In the process of mining, particularly in the mining of large-water metal mines, the problem that mine water cannot be completely consumed exists, under the condition, the mine water is generally required to be discharged, but the water containing heavy metals is discharged into a natural water body and then influences on surrounding water resources. In order to avoid the pollution of water containing heavy metals to peripheral water resources, especially for some mines in water resource sensitive zones, such as mines with multiple resident drinking water sources distributed at the downstream, the development and effective utilization of mineral resources in the mining area cannot be realized, so that the economic benefit and social benefit of the area cannot be improved, and particularly for high-grade mines with good resource conditions, the serious waste of mineral resources can be caused due to the incapability of mining.
At present, the national call for the creation of green mines is that the green sustainable development is the necessary way for mine enterprises. With the stricter environmental protection policy, on one hand, the key construction projects of new, improved and expanded heavy metal industries must follow the emission principle of 'reduction replacement' or 'equivalent replacement' of heavy metal pollutants; on the other hand, the discharged water needs to meet extremely high requirements, and part of areas even mine enterprises need to realize zero emission. Under the current situation, the pressure of mine enterprises is getting bigger and bigger, and the enterprises need to fully utilize underground water gushing and production wastewater so as to solve the problem that no environmental capacity exists in wastewater discharge. Therefore, how to realize zero discharge of wastewater in mine enterprises is a problem to be solved urgently.
The patent with the application number of CN202110618397.0 discloses a comprehensive treatment method for mine water of a large water mine, which comprises the following steps: 1) adopting curtain grouting technology to build a water-blocking curtain which is totally closed in the horizontal and vertical directions around the ore body; 2) collecting the mine water in the curtain to an underground permanent water sump for primary physical sedimentation, and discharging the generated sludge to a tailing concentration tank on the ground surface; 3) the mine water after the primary physical sedimentation is sent to a clarification tank on the ground surface for chemical flocculation sedimentation, and the generated sludge is discharged to a tailing concentration tank on the ground surface; 4) the mine water after chemical flocculation precipitation is subjected to deep purification treatment by adopting a deep purification system taking nanofiltration as a core, and the treated clean water reaches drinking water and national specified recharge water quality standards; 5) and (3) reinjecting part or all of the deeply purified clean water to an underground aquifer outside the curtain by adopting a large-flow reinjection technology. Although the process has less sewage discharge, the process is energy-saving and environment-friendly; but has the disadvantages that: the mine water needs to be subjected to multi-stage purification treatment to meet the national standards of recharge water quality, particularly drinking water, and the process needs large manpower and material resources and is high in cost.
In view of the above, there is a need for an improved system for zero discharge of wastewater from underground mines to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an underground mine waste water zero release system sets up the thick liquid in the cracked crack department of opening nature and carries out water shutoff in order to reach and predetermine the water shutoff rate to recycle external water system when making gushing water in the pit and being utilized by the water system completely and carry out the supply, make gush water in the pit and be utilized completely, realize the green exploitation way of waste water zero release.
In order to achieve the aim, the utility model provides an underground mine wastewater zero discharge system, which comprises a water utilization system, a return water supply system and a fresh water supply system, wherein the return water supply system and the fresh water supply system are used for providing a water source for the water utilization system; the water outlet ends of the return water supply system and the fresh water supply system are connected with the water inlet end of the water using system; the water system comprises a mining system, a filling system and a mineral processing system; the fresh water supply system comprises a downhole water burst system and an external water system; and slurry for blocking water is arranged at the fracture of the tensile fracture of the underground water burst system so as to block water of the underground water burst system, and zero discharge of wastewater of the underground mine is realized.
As a further improvement of the utility model, the backwater replenishing system comprises a mine water treatment system connected with the water outlet end of the underground water gushing system, and the water outlet end of the mine water treatment system is connected with the water inlet end of the water utilization system; and the underground water burst generated by the underground water burst system is used for the water using system after being processed by the mine water processing system.
As a further improvement, the external water system is a municipal water supply system.
As a further improvement, the ore dressing system comprises a water washing and screening system, a jigging and sorting system, a sand washing system and a grinding and dewatering system.
As a further improvement of the utility model, the backwater replenishing system further comprises a jigging and sand washing water treatment system which is connected with the water outlet ends of the water washing screening system, the jigging sorting system and the sand washing system, wherein the water outlet end of the jigging and sand washing water treatment system is connected with the water inlet end of the ore dressing system; and wastewater generated by the washing screening system, the jigging sorting system and the sand washing system is treated by the jigging and sand washing water treatment system and then recycled to the ore dressing system.
As a further improvement of the utility model, the backwater replenishing system further comprises a mineral separation wastewater treatment system connected with the water outlet end of the grinding and dewatering system, and the water outlet end of the mineral separation wastewater treatment system is connected with the water inlet end of the mineral separation system; and the concentrate water and the tailing water generated by the grinding, selecting and dewatering system are treated by the beneficiation wastewater treatment system and then are recycled to the beneficiation system.
As a further improvement of the utility model, the filling system comprises a thickener overflow water system and a filling bleeding system, wherein the water outlet end of the thickener overflow water system is connected with the water inlet end of the mineral processing wastewater treatment system, and the water outlet end of the filling bleeding system is connected with the water inlet end of the mine water treatment system; the overflow water of the thickener, which is generated by the overflow water system of the thickener, is recycled to the beneficiation system after being treated by the beneficiation wastewater treatment system; and filling bleeding water generated by the filling bleeding water system is treated by the mine water treatment system and then recycled to the water using system.
As a further improvement of the utility model, the mining system comprises a production wastewater system, and the water outlet end of the production wastewater system is connected with the water inlet end of the mine water treatment system; and the production wastewater generated by the mining system is treated by the mine water treatment system and then recycled to the water utilization system.
As a further improvement, the underground mine waste water zero discharge system still is equipped with emergency system, emergency system can hold and be not less than 10 days gush the water in the pit that the water system produced in the pit.
As a further improvement, the municipal water supply system comprises a municipal water supply mechanism for supplying water to the water system and a domestic water supply mechanism for supplying water to the plant life system.
The beneficial effects of the utility model are that:
(1) the utility model provides an underground mine waste water zero discharge system sets up the thick liquid through the fracture department setting opening nature fracture and carries out the water shutoff and reach and predetermine the water shutoff rate (calculate the volume of gushing water in the pit according to the mining area hydrogeology condition, reach the water shutoff rate that need reach when gushing water in the pit by utilizing completely through accurate calculation, set up one according to the result of calculation and be higher than this water shutoff rate of predetermineeing the water shutoff rate to make gushing water in the pit utilize by the water system completely, reunion external water system supplies. The system enables underground water burst to be completely utilized through accurate calculation and a refined implementation process, avoids water resource pollution caused by external drainage, realizes a green exploitation way of zero emission of wastewater, and protects the ecological environment to the greatest extent.
(2) The utility model discloses adopt the waste water that produces different systems and the different types of waste water that same system produced to handle respectively and retrieval and utilization respectively to realize the whole cyclic utilization of waste water. According to the specific conditions of different types of waste water, the most appropriate recovery treatment method is selected, so that the treatment capacity is low, and the waste water cannot be treated excessively to reduce the production cost.
(3) The utility model provides an underground mine waste water zero discharge system adopts curtain slip casting and earth's surface to decontaminate the reposition of redundant personnel and has reduced the gushing out of well water from the source, and the reunion adopts and selects processing schemes such as waste water treatment retrieval and utilization, realizes the green exploitation of waste water zero release on the whole, and environmental risk precaution is feasible, and environmental risk is controllable, does not have newly-increased pollutant to the water environment, does not influence low reaches drinking water source and ecological environment, especially is worth the reference to the sensitive fragile area of water environment.
Drawings
FIG. 1 is the schematic structural diagram of the underground mine wastewater zero discharge system.
FIG. 2 is a flow chart of the underground mine wastewater zero discharge system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 and 2, the utility model provides an underground mine wastewater zero discharge system, which comprises a water utilization system, a return water supply system for providing water source for the water utilization system, and a fresh water supply system; the water outlet ends of the return water supply system and the fresh water supply system are connected with the water inlet end of the water using system; the water system comprises a mining system, a filling system and a mineral processing system; the fresh water supply system comprises a downhole water burst system and an external water system; the slurry for blocking water is arranged at the fracture of the tensile fracture of the underground water burst system so as to block water of the underground water burst system, achieve the preset water blocking rate and realize zero discharge of underground mine wastewater.
Specifically, the mining system includes a production wastewater system; the ore dressing system comprises a water washing and screening system, a jigging and sorting system, a sand washing system and a grinding and dewatering system; the filling system comprises a thickener overflow water system and a filling bleeding water system.
The backwater supplying system comprises a jigging and sand washing water treatment system, a mineral processing wastewater treatment system and a mine water treatment system (the mine water treatment system is arranged on the ground surface).
The specific connection relationship between the return water supply system and the water using system is as follows:
the water outlet ends of the water washing screening system, the jigging sorting system and the sand washing system are connected with the water inlet end of the jigging and sand washing water treatment system; and meanwhile, the water outlet end of the jigging and sand washing water treatment system is connected with the water inlet end of the ore dressing system. So set up, washing screening system, jigging sorting system and washing sand system produce the waste water through jigging and washing sand water processing system after handling, the reuse gives the ore dressing system again.
The water outlet end of the grinding, selecting and dehydrating system is connected with the water inlet end of the mineral processing wastewater treatment system; meanwhile, the water outlet end of the beneficiation wastewater treatment system is connected with the water inlet end of the beneficiation system. According to the arrangement, the concentrate water and the tailing water generated by the grinding, selecting and dewatering system are treated by the beneficiation wastewater treatment system and then are recycled to the beneficiation system. In some embodiments, a small amount of surface washing water is also treated by the beneficiation wastewater treatment system and recycled to the beneficiation system.
The water outlet end of the thickener overflow water system is connected with the water inlet end of the beneficiation wastewater treatment system (meanwhile, the water outlet end of the beneficiation wastewater treatment system is connected with the water inlet end of the beneficiation system), and through the arrangement, the thickener overflow water generated by the thickener overflow water system is treated by the beneficiation wastewater treatment system and then recycled to the beneficiation system.
The water outlet end of the filling bleeding system is connected with the water inlet end of the mine water treatment system, and the water outlet end of the mine water treatment system is connected with the water inlet end of the water utilization system. By the arrangement, the filling bleeding water generated by the filling bleeding water system is treated by the mine water treatment system and then is recycled to the water supply system.
The water outlet end of the production wastewater system is connected with the water inlet end of the mine water treatment system (meanwhile, the water outlet end of the mine water treatment system is connected with the water inlet end of the water utilization system), and the production wastewater generated by the mining system is treated by the mine water treatment system and then recycled to the water utilization system.
In some embodiments, a backwater high-level water tank is arranged between the beneficiation wastewater treatment system and the beneficiation system, and water obtained by treatment of the beneficiation wastewater treatment system firstly enters the backwater high-level water tank and then enters the beneficiation system from the backwater high-level water tank.
The waste water produced by different systems and different types of waste water produced by the same system are respectively treated and recycled so as to realize the complete cyclic utilization of the waste water. According to the arrangement, the most appropriate recovery treatment method is selected according to the specific conditions of different types of wastewater, so that the treatment capacity is small, and the excessive treatment of the wastewater is avoided to reduce the production cost.
The specific connection relationship between the new water supply system and the water using system is as follows:
the water outlet end of the underground water burst system is connected with the water inlet end of the mine water treatment system (meanwhile, the water outlet end of the mine water treatment system is connected with the water inlet end of the water utilization system), and by the arrangement, the underground water burst generated by the underground water burst system is used for the water utilization system after being treated by the mine water treatment system.
The external water system is a municipal water supply system. The municipal water supply system comprises a municipal water supply mechanism for supplying water to a water system and a domestic water mechanism for supplying water to a plant domestic system.
The water outlet end of the municipal water supply mechanism is connected with the water inlet end of the water using system, and the water generated by the municipal water supply mechanism is used for the water using system.
In some embodiments, the municipal water supply system further comprises a plant-greening mechanism for supplying water for plant greening. The water inlet end of the plant greening mechanism is respectively connected with the domestic water mechanism and the water outlet end of the municipal water supply system.
After being collected by a sewage pipe network, domestic sewage generated by a plant area domestic system is biochemically treated by a buried integrated domestic sewage treatment facility, and after the treated water meets the standard requirements, the treated water enters a plant area greening mechanism for plant area greening irrigation without being discharged. When the treated domestic sewage can not meet the greening water demand, the water can be supplied to the plant greening mechanism through the municipal water supply system.
In order to prevent the emergency situation, the plant area is also provided with an emergency system (located in the mine water treatment system), and the emergency system comprises an emergency pool. When the plant area does not operate for a short time (in a shutdown state), the emergency pool can accommodate the underground water inflow amount of not less than 10 days; when the plant is not operated for a long time, underground water produced by the underground water burst system is treated by the mine water treatment system to reach the standard and then is used as production water for enterprises in nearby industrial parks.
Specifically, the calculation of the preset water shutoff rate and the water supply amount of the external water system comprises the following steps:
s1, calculating water consumption:
and respectively calculating the water consumption of the mining system, the filling system and the mineral separation system according to the mining, filling and mineral separation capacities, the process and the working system, and obtaining the total water consumption according to the sum of the mining capacity, the filling capacity, the mineral separation capacity, the process and the working system.
S2, calculating the return water supply amount:
and respectively treating the wastewater generated by the mining system, the filling system and the mineral separation system to obtain return water supply, calculating the return water supply obtained after treatment, and reusing the return water supply for the water system.
Specifically, the production wastewater generated by the mining system enters an underground water sump, is treated by a mine water treatment system and then enters a fresh water high-level water pool, and is finally recycled to a water supply system.
The waste water produced by the filling system comprises overflow water of the thickener (tailings produced by the mineral separation system and tailings enter the thickener of the filling system through pipelines) and filling bleeding water. The overflow water of the thickener enters a backwater high-level water tank after being treated by a beneficiation wastewater treatment system and is recycled to a beneficiation system. Filling the bleeding water, entering an underground water sump, treating the bleeding water by a mine water treatment system, entering a new water high-level water pool, and finally recycling the new water to a water supply system.
And wastewater generated by the washing screening system, the jigging sorting system and the sand washing system is treated by the jigging and sand washing water treatment system and then recycled to the ore dressing system. A small amount of surface washing water and concentrate water and tailing water generated by a grinding, selecting and dewatering system enter a backwater high-level water tank after being treated by a beneficiation wastewater treatment system, are recycled to a beneficiation system and enter a grinding and flotation process.
S3, calculating the excess water:
according to the hydrogeological conditions of the mining area, various methods are adopted to predict the underground water inflow amount, and the underground water inflow amount of the underground water inflow system is calculated through comprehensive comparison and analysis and is used as the basis of the mine mining water-proof and drainage design.
And obtaining the excess water according to the difference between the sum of the backwater supply amount and the downhole water inflow amount obtained in the step S2 and the total water consumption obtained in the step S1.
The underground water burst generated by the underground water burst system enters an underground water sump, is treated by a mine water treatment system and then enters a backwater high-level water pool, and finally is recycled to the water supply system. In conclusion, filling bleeding generated by a filling system, production wastewater generated by a mining system and underground gushing water generated by an underground gushing water system all enter an underground sump, and then enter a fresh water high-level water tank after being treated by a mine water treatment system, and finally are recycled to a water supply system.
S4, determining a preset water plugging rate:
and calculating the water blocking rate when the excess water amount is zero according to the excess water amount obtained in the step S3 and the underground water inflow amount. And (3) carrying out water plugging treatment on the water burst position of the mine water burst system by using a preset method so as to achieve a preset water plugging rate higher than the water plugging rate. The preset water plugging rate is generally 70-90%.
Through fine implementation, the surplus coefficient is considered, design and construction are carried out according to the water blocking rate (namely the preset water blocking rate) exceeding the requirement, and the external water system is adopted for supplying water when the water quantity is not enough. By the operation, the underground water inflow is fully utilized, a green mining way of zero discharge of waste water is realized, no new pollutant is added to the water environment, and the ecological environment is protected to the maximum extent.
Specifically, the preset method comprises curtain grouting and surface decontamination shunting. And curtain grouting and surface sewage removal and diversion are implemented in a mine, so that the underground water inflow can be reduced from the source. In the curtain grouting process, main water seepage channels of the mine pit are analyzed, a plurality of cracks with main tension fracture are respectively plugged through curtain grouting, most of underground water flowing into the mine pit through fracture zones can be intercepted, and the underground water inflow is reduced. The curtain bottom depth and the curtain end point are adjusted in real time according to the hydrogeological condition of the mining area and the actual condition in the curtain grouting process. Meanwhile, in the process of carrying out surface decontamination and diversion on surface ditches, when water gushes from cracks in the underground development process, grouting is immediately carried out to block water.
S5, calculating the external supply amount:
and calculating the underground water inflow amount of the underground water inflow system after water blocking according to the preset water blocking rate obtained in the step S4. And calculating the external supply amount required to be provided by the external water system according to the difference value between the total water consumption obtained in the step S1 and the sum of the return water supply amount obtained in the step S2 and the underground water inflow amount after water plugging.
The process of the utility model is utilized to treat the wastewater generated by the underground mine to achieve zero discharge.
The method comprises the following steps of firstly obtaining a preset water blocking rate, underground water inflow and municipal water supply amount after water blocking through calculation, and specifically calculating the following steps:
s1, calculating water consumption:
and respectively calculating the water consumption a of the mining system, the water consumption b of the filling system and the water consumption c of the mineral separation system according to the mining, filling and mineral separation capacities, the process and the working system.
The total water consumption d is a + b + c.
S2, calculating the return water supply amount:
and calculating the backwater supply amount e of the production wastewater generated by the mining system after the production wastewater is treated by the mine water treatment system.
And calculating the return water supply amount f of wastewater generated by the washing screening system, the jigging sorting system and the sand washing system in the ore dressing system after the wastewater is treated by the jigging and sand washing water treatment system. And calculating the return water supply amount g of the concentrate water and the tailing water generated by a small amount of surface flushing water and the grinding and separation and dehydration system after treatment by the mineral processing wastewater treatment system.
And calculating the backwater supply amount h of the overflow water of the thickener generated by the filling system after the overflow water is treated by the beneficiation wastewater treatment system. And calculating the backwater supply amount i of the filling bleeding water generated by the filling system after the filling bleeding water is treated by the mine water treatment system.
The total backwater supply amount j is e + f + g + h + i.
S3, calculating the excess water:
and (3) predicting the underground water inflow by adopting various methods according to the hydrogeological condition of the mining area, and calculating the underground water inflow k of the underground water inflow system through comprehensive comparison analysis.
And obtaining the excess water amount l, wherein l is k + j-d according to the total backwater supply amount j obtained in the step S2, the underground water inflow amount k and the total water consumption d obtained in the step S1.
S4, determining a preset water plugging rate:
calculating the water plugging rate omega when the excess water amount is zero according to the excess water amount l and the underground water inflow amount k obtained in the step S3 1 ，ω 1 ＝(k-l)/k。
Setting a predetermined water shutoff rate omega 2 A value of (a), ensure ω 2 ＞ω 1 . Grouting and grounding by curtainThe surface sewage-cleaning flow-dividing carries out water-blocking treatment on the water-gushing position of the mine water-gushing system, so that the preset water-blocking rate reaches omega 2 。
S5, calculating the external supply amount:
the preset water shutoff rate omega obtained according to the step S4 2 Calculating the underground water inflow m after water blockage of the underground water inflow system, wherein m is k x (1-omega) 2 )。
And calculating the external supply amount n required to be provided by the external water system according to the total water consumption d obtained in the step 1, the total return water supply amount j obtained in the step 2 and the underground water inflow amount m after water blocking, wherein n is d- (j + m).
In conclusion, the water burst part of the underground water burst system is subjected to water blocking treatment by curtain grouting and surface sewage disposal shunting, so that the preset water blocking rate reaches omega 2 And the underground water inflow after water blockage is m, and the water quantity required to be supplied by each circulation of the municipal water supply system is n.
In summary, the utility model provides an underground mine wastewater zero discharge system, which can block water to reach the preset water blocking rate by arranging slurry at the cracks of several major tensile fractures, and can completely utilize the downhole water gushing through precise calculation and refined implementation process, thereby avoiding water resource pollution caused by external drainage, realizing a green mining approach of wastewater zero discharge, and protecting the ecological environment to the maximum extent; the method has the advantages that the gushing of underground water is reduced from the source by adopting curtain grouting and surface cleaning and shunting, and the treatment schemes such as treatment and recycling of mining and selecting wastewater are combined, so that green mining with zero wastewater discharge is realized on the whole, environmental risk prevention measures are feasible, environmental risk is controllable, no new pollutant is added to the water environment, the downstream drinking water source and the ecological environment are not influenced, and the method is particularly worth reference to the vulnerable area of the water environment.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an underground mine waste water zero discharge system which characterized in that: the system comprises a water using system, a return water supply system and a fresh water supply system, wherein the return water supply system and the fresh water supply system are used for providing a water source for the water using system; the water outlet ends of the return water replenishing system and the fresh water replenishing system are connected with the water inlet end of the water using system; the water using system comprises a mining system, a filling system and a mineral processing system; the fresh water supply system comprises a downhole water burst system and an external water system; and slurry for blocking water is arranged at the fracture of the tensile fracture of the underground water burst system so as to block water of the underground water burst system, and zero discharge of wastewater of the underground mine is realized.
2. The underground mine wastewater zero discharge system of claim 1, characterized in that: the backwater replenishing system comprises a mine water treatment system connected with the water outlet end of the underground water burst system, and the water outlet end of the mine water treatment system is connected with the water inlet end of the water utilization system; and the underground water burst generated by the underground water burst system is used for the water using system after being processed by the mine water processing system.
3. The underground mine wastewater zero discharge system according to claim 1, characterized in that: the external water system is a municipal water supply system.
4. The underground mine wastewater zero discharge system of claim 2, characterized in that: the ore dressing system comprises a water washing and screening system, a jigging and sorting system, a sand washing system and a grinding and dewatering system.
5. The underground mine wastewater zero discharge system of claim 4, characterized in that: the backwater replenishing system also comprises a jigging and sand washing water treatment system which is connected with the water washing screening system, the jigging and sorting system and the water outlet end of the sand washing system, and the water outlet end of the jigging and sand washing water treatment system is connected with the water inlet end of the ore dressing system; and wastewater generated by the washing screening system, the jigging sorting system and the sand washing system is treated by the jigging and sand washing water treatment system and then recycled to the ore dressing system.
6. The underground mine wastewater zero discharge system of claim 5, characterized in that: the backwater replenishing system also comprises a mineral separation wastewater treatment system connected with the water outlet end of the grinding and dewatering system, and the water outlet end of the mineral separation wastewater treatment system is connected with the water inlet end of the mineral separation system; and the concentrate water and the tailing water generated by the grinding, selecting and dewatering system are treated by the beneficiation wastewater treatment system and then are recycled to the beneficiation system.
7. The underground mine wastewater zero discharge system of claim 6, characterized in that: the filling system comprises a thickener overflow water system and a filling bleeding system, wherein the water outlet end of the thickener overflow water system is connected with the water inlet end of the mineral processing wastewater treatment system, and the water outlet end of the filling bleeding system is connected with the water inlet end of the mine water treatment system; the overflow water of the thickener, which is generated by the overflow water system of the thickener, is recycled to the beneficiation system after being treated by the beneficiation wastewater treatment system; and filling bleeding water generated by the filling bleeding water system is treated by the mine water treatment system and then recycled to the water using system.
8. The underground mine wastewater zero discharge system of claim 7, characterized in that: the mining system comprises a production wastewater system, and a water outlet end of the production wastewater system is connected with a water inlet end of the mine water treatment system; and the production wastewater generated by the mining system is treated by the mine water treatment system and then recycled to the water utilization system.
9. The underground mine wastewater zero discharge system of claim 8, characterized in that: the underground mine wastewater zero discharge system is also provided with an emergency system, and the emergency system can accommodate the underground water burst generated by the underground water burst system for not less than 10 days.
10. The underground mine wastewater zero discharge system of claim 3, characterized in that: the municipal water supply system comprises a municipal water supply mechanism for supplying water for the water system and a domestic water supply mechanism for supplying water for a plant living system.
Applications Claiming Priority (2)
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| CN2022208906103 | 2022-04-18 | ||
| CN202220890610 | 2022-04-18 |
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| CN217323583U true CN217323583U (en) | 2022-08-30 |
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