Tailing dry discharge peripheral water circulation system

Abstract

The utility model belongs to the technical field of tailing dry discharge, and particularly discloses a tailing dry discharge peripheral water circulation system which comprises a workshop, a first concentration tank, a recycling machine, a second concentration tank, a cyclone, a first circulation water tank, a second circulation water tank, water purification equipment, a new water tank, a first slurry pump, a second slurry pump, a fourth slurry pump, a first clean water pump, a second clean water pump and a third clean water pump. Ore pulp generated in a workshop sequentially passes through the first concentration tank, the first circulating water tank, the recycling machine, the second concentration tank, the second circulating water tank, the swirler, the water purifying device and the filtering mechanism, water in the first circulating water tank can be used for flushing slag, and after the water in the second circulating water tank is treated by the water purifying device, suspended solids in the water are reduced, and the quality of the water is improved; the water circulation system can be used in a workshop where clean water is needed, circulating water is consumed in time, and therefore waste of water resources is reduced, and the problems that during continuous production of an existing water circulation system, much circulating water is generated, and the water resources are wasted due to the fact that the circulating water is not consumed in time are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tailing dry discharge technical field, concretely relates to a tailing dry discharge peripheral water circulation system. BACKGROUND

[0002] ‌Tailing dry discharge is a kind of tailing disposal process, is the tailing pulp output by mineral processing process, is treated by multi-stage thickening and efficient dewatering equipment, forms the slag of low water content, easy to precipitate solidification and utilization site stockpiling, and the process of tailing dry discharge includes: first by slurry pump the tailing pulp is transported to hydrocyclone and is concentrated and classified, and the sand is entered into the dewatering equipment and is treated, and overflow is entered into the circulating pool and is recycled, in the process of tailing dry discharge, a large amount of water is separated, since the separated water is directly discharged without treatment, part of suspended solids can be left in water, can cause pollution to surrounding soil and water body, and the water in these circulating pools can only be consumed by road watering dust reduction, when continuously producing, the circulating water is more, sometimes due to the non-timely consumption of circulating water, leading to a large amount of water resource waste. SUMMARY

[0003] The utility model aims at providing a kind of tailing dry discharge peripheral water circulation system, to solve the problem that the water circulation system of existing in continuous production, the circulating water that produces is more, due to the non-timely consumption of circulating water, leading to water resource waste.

[0004] To achieve the above-mentioned purpose, the basic scheme provided by the utility model is: a kind of tailing dry discharge peripheral water circulation system, including workshop, thickening pool one, recycling machine, thickening pool two, cyclone, circulating water pool one, circulating water pool two, water purification equipment, new water pool, slurry pump one, slurry pump two, slurry pump four, clean water pump one, clean water pump two and clean water pump three, the ore pulp outlet of workshop is communicated with the inlet of thickening pool one, the overflow port of thickening pool one is communicated with the inlet of circulating water pool one, the outlet of circulating water pool one is communicated with the inlet of workshop by clean water pump one, the underflow port of thickening pool one is communicated with the inlet of recycling machine by slurry pump one, the slurry water outlet of recycling machine is communicated with the inlet of thickening pool two, the overflow port of thickening pool two is communicated with the inlet of circulating water pool two, the underflow port of thickening pool two is communicated with the inlet of cyclone by slurry pump two, the overflow port of cyclone is communicated with the inlet of circulating water pool two, the outlet of circulating water pool two is communicated with the inlet of water purification equipment by clean water pump two, the clean water outlet of water purification equipment is communicated with the inlet of new water pool, the outlet of new water pool is communicated with workshop by clean water pump three, the sand outlet of cyclone is communicated with filter mechanism, the sludge outlet of water purification equipment is communicated with filter mechanism by slurry pump four.

[0005] The utility model discloses a principle and beneficial effect lies in: when using, the ore pulp produced in the workshop enters the thickening pool no. 1, and the water in the ore pulp after concentration treatment enters the circulating water pool no. 1, and the water in the circulating water pool no. 1 can be used to flush the slag, and the underflow in the ore pulp enters the recovery machine, and the remaining pulp water after concentrate recovery enters the thickening pool no. 2, and the water in the pulp water after secondary concentration enters the circulating water pool no. 2, and the underflow in the pulp water enters the cyclone, and the sand after dehydration and concentration enters the filtering mechanism, and the overflow water generated enters the circulating water pool no. 2, and the water in the circulating water pool no. 2 is treated after passing through the water purification equipment, reduces the suspended solids in the water, improves the quality of water, can be used to the place needing clean water in the workshop, makes the circulating water consumption in time, thereby reduces the waste of water resources.

[0006] Scheme two, this is the preferred embodiment of the basic scheme, the filtering mechanism includes filter one and thickening pool three, and the sand outlet of the cyclone is communicated with the inlet of filter one, and the filtrate outlet of filter one is communicated with the inlet of thickening pool three, and the overflow port of the cyclone is communicated with the inlet of thickening pool three, and the overflow port of thickening pool three is communicated with the inlet of circulating water pool no. 2, and the underflow port of thickening pool three is communicated with secondary filtration assembly;Through the filter medium in filter one, the sand is filtered, and the solid particles are retained on the filter medium, and the water flows out through the filter medium, so as to realize solid-liquid separation, so that the solid particles in the sand are compressed, dried and treated, and finally dry tailings with less water content are generated, which is helpful for sewage treatment and recycling.

[0007] Scheme three, this is the preferred embodiment of scheme two, the secondary filtration assembly includes filter two and slurry pump three, and the underflow port of thickening pool three is communicated with the inlet of filter two through slurry pump three, and the filtrate outlet of filter two is communicated with the inlet of thickening pool three;The secondary filtration can further remove the impurities such as small particles, organic matter and inorganic matter in the underflow of thickening pool three, ensure the cleanliness of filtrate water, and realize the recycling of water.

[0008] Scheme four, this is the preferred embodiment of scheme three, filter one is plate and frame filter press, and filter two is ceramic filter;The plate and frame filter press adopts mechanical pressure for solid-liquid separation, can process a large amount of materials in a short time, the ceramic filter does not need to add additional chemical reagent in the filtering process, thereby reducing the pollution to the environment, and also has the characteristics of high efficiency, environmental protection, wear resistance, corrosion resistance, high automation degree, stable operation and high dehydration efficiency, and when using, the sand is sequentially filtered through the plate and frame filter press and the ceramic filter, the filtering effect of the sand is increased, and the water quality of the circulating water is improved.

[0009] Scheme five, which is preferred to scheme three, the water purification equipment is HDCY integrated multi-effect clarification system, and an electromagnetic valve is arranged on the water purification equipment; the HDCY integrated multi-effect clarification system has low operation cost, and the cost for treating one ton of water is only 0.2-0.5 yuan, so that the treatment cost of the circulating water is reduced; and the system has fast reaction speed, and only 8 minutes are needed to change the waste water into clean water, so that the treatment efficiency of the circulating water is improved.

[0010] Scheme six, which is preferred to scheme five, the concentration of suspended matters in the water after purification is arranged in the water purification equipment, and the concentration of the suspended matters is ≤25 mg / L; the concentration of the suspended matters in the water is arranged, so that the definition of the water quality is improved, and the pollutants are effectively removed. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a structural schematic view of a tailing dry discharge peripheral water circulation system. DETAILED DESCRIPTION

[0012] The utility model will be further explained in detail by specific implementation ways as follows:

[0013] The reference signs in the drawings of the specification include: 1. workshop, 2. thickening tank one, 3. recovery machine, 4. thickening tank two, 5. circulating water tank one, 6. circulating water tank two, 7. cyclone, 8. filter one, 9. filter two, 10. thickening tank three, 11. water purification equipment, 12. fresh water tank, 13. slurry pump one, 14. slurry pump two, 15. slurry pump three, 16. slurry pump four, 17. clean water pump one, 18. clean water pump two, 19. clean water pump three.

[0014] EMBODIMENT

[0015] As Figure 1The system comprises a workshop 1, a thickening tank 2, a recycling machine 3, a thickening tank 4, a cyclone 7, a circulating water tank 5, a circulating water tank 6, a water purification device 11, a new water tank 12, a slurry pump 13, a slurry pump 14, a slurry pump 16, a clean water pump 17, a clean water pump 18 and a clean water pump 19, the filter 8 is a plate and frame filter press, the filter 9 is a ceramic filter, the water purification device 11 is an HDCY integrated multi-effect clarification system, the water purification device 11 is provided with a suspended solids concentration after purification, and the suspended solids concentration is ≤25 mg / L, the water purification device 11 is provided with a solenoid valve, the ore slurry outlet of the workshop 1 is communicated with the inlet of the thickening tank 2, the overflow port of the thickening tank 2 is communicated with the inlet of the circulating water tank 5, the outlet of the circulating water tank 5 is communicated with the inlet of the workshop 1 through the clean water pump 17, the underflow port of the thickening tank 2 is communicated with the inlet of the recycling machine 3 through the slurry pump 13, the recycling machine 3 is a 2500 gauss disc type magnetic separation recycling machine, the slurry water outlet of the recycling machine 3 is communicated with the inlet of the thickening tank 4, the overflow port of the thickening tank 4 is communicated with the inlet of the circulating water tank 6, the underflow port of the thickening tank 4 is communicated with the inlet of the cyclone 7 through the slurry pump 14, the cyclone 7 is a cyclone of Haoyang, the sand outlet of the cyclone 7 is communicated with a filter mechanism, the filter mechanism comprises a filter 8 and a thickening tank 10, the sand outlet of the cyclone 7 is communicated with the inlet of the filter 8, the filtrate outlet of the filter 8 is communicated with the inlet of the thickening tank 10, the overflow port of the cyclone 7 is communicated with the inlet of the thickening tank 10, the overflow port of the thickening tank 10 is communicated with the inlet of the circulating water tank 6, the outlet of the circulating water tank 6 is communicated with the inlet of the water purification device 11 through the clean water pump 18, the clean water outlet of the water purification device 11 is communicated with the inlet of the new water tank 12, the outlet of the new water tank 12 is communicated with the workshop 1 through the clean water pump 19, the sludge outlet of the water purification device 11 is communicated with the inlet of the thickening tank 10 through the slurry pump 16, the underflow port of the thickening tank 10 is communicated with a secondary filtration assembly, the secondary filtration assembly comprises a filter 9 and a slurry pump 15, the underflow port of the thickening tank 10 is communicated with the inlet of the filter 9 through the slurry pump 15, and the filtrate outlet of the filter 9 is communicated with the inlet of the thickening tank 10.

[0016] The embodiment of the present application is that the concentration of suspended solids in the water treated by the water purification device 11 is set in advance before use, and the concentration of suspended solids is less than or equal to 25 mg / L. When in use, the ore slurry generated by the workshop 1 enters the thickening tank 1, and after thickening treatment, the overflow water in the thickening tank 1 enters the circulating water tank 5. The water in the circulating water tank 5 enters the workshop 1 through the clean water pump 17 and can be used for flushing slag in the workshop 1. The underflow in the thickening tank 1 enters the recovery machine 3 through the slurry pump 13, and after recovery of the concentrate, the slurry water generated enters the thickening tank 2, and after secondary thickening, the water in the slurry water enters the circulating water tank 6. The underflow in the thickening tank 2 enters the cyclone 7 through the slurry pump 14, and after dehydration and thickening, the sand enters the filter 1, and after filtering to generate dry tailings, the filtrate generated enters the thickening tank 3, and after three times of thickening, the underflow generated enters the filter 2 through the slurry pump 15. After secondary filtration to generate dry tailings, the filtrate is circulated to the thickening tank 3, and the overflow water generated in the thickening tank 3 enters the circulating water tank 6. The water in the circulating water tank 6 enters the water purification device 11 through the clean water pump 18, and after treatment by the water purification device 11, enters the new water tank 12, and then enters the workshop 1 through the clean water pump 19 for use. The sludge generated after treatment by the water purification device 11 is circulated to the thickening tank 3 through the slurry pump 16 for thickening treatment. During use, the opening of the electromagnetic valve provided on the water purification device 11 can be adjusted to control the amount of water entering the water purification device 11. During use, the circulating water amount can be adjusted according to the waste water generated by the workshop 1, so as to control the consumption speed of the circulating water.

[0017] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be regarded as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific embodiments in the specification can be used to explain the content of the claims.

Claims

1. A tailings dry drainage peripheral water recycling system, characterized in that, The system comprises a workshop (1), a thickening tank (2), a recovery machine (3), a second thickening tank (4), a cyclone (7), a first circulating water tank (5), a second circulating water tank (6), a water purification device (11), a new water tank (12), a first slurry pump (13), a second slurry pump (14), a fourth slurry pump (16), a first clean water pump (17), a second clean water pump (18) and a third clean water pump (19), the ore pulp outlet of the workshop (1) is communicated with the inlet of the thickening tank (2), the overflow outlet of the thickening tank (2) is communicated with the inlet of the first circulating water tank (5), the outlet of the first circulating water tank (5) is communicated with the inlet of the workshop (1) for slurry flushing through the first clean water pump (17), the underflow outlet of the thickening tank (2) is communicated with the inlet of the recovery machine (3) through the first slurry pump (13), the slurry outlet of the recovery machine (3) is communicated with the inlet of the second thickening tank (4), the overflow outlet of the second thickening tank (4) is communicated with the inlet of the second circulating water tank (6), the underflow outlet of the second thickening tank (4) is communicated with the inlet of the cyclone (7) through the second slurry pump (14), the overflow outlet of the cyclone (7) is communicated with the inlet of the second circulating water tank (6), the outlet of the second circulating water tank (6) is communicated with the inlet of the water purification device (11) through the second clean water pump (18), the clean water outlet of the water purification device (11) is communicated with the inlet of the new water tank (12), the outlet of the new water tank (12) is communicated with the workshop (1) through the third clean water pump (19), the sand outlet of the cyclone (7) is communicated with a filtering mechanism, and the sludge outlet of the water purification device (11) is communicated with the filtering mechanism through the fourth slurry pump (16).

2. The dry tailings peripheral water circulation system of claim 1, wherein, The filtering mechanism comprises a filter (8) and a third thickening tank (10), the sand outlet of the cyclone (7) is communicated with the inlet of the filter (8), the filtrate outlet of the filter (8) is communicated with the inlet of the third thickening tank (10), the overflow outlet of the cyclone (7) is communicated with the inlet of the third thickening tank (10), the overflow outlet of the third thickening tank (10) is communicated with the inlet of the second circulating water tank (6), and the underflow outlet of the third thickening tank (10) is communicated with a secondary filtering assembly.

3. A tailings dry drainage peripheral water recycling system according to claim 2, wherein, The secondary filtering assembly comprises a second filter (9) and a third slurry pump (15), the underflow outlet of the third thickening tank (10) is communicated with the inlet of the second filter (9) through the third slurry pump (15), and the filtrate outlet of the second filter (9) is communicated with the inlet of the third thickening tank (10).

4. The dry tailings peripheral water circulation system of claim 3, wherein, The filter (8) is a plate-and-frame filter press, and the second filter (9) is a ceramic filter.

5. The dry tailings peripheral water circulation system of claim 3, wherein, The water purification device (11) is an HDCY integrated multi-effect clarification system, and an electromagnetic valve is arranged on the water purification device (11).

6. A tailings dry drainage peripheral water recycling system according to claim 5 wherein, The concentration of suspended solids in the purified water in the water purification device (11) is less than or equal to 25 mg / L.

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