Slow-cooling three-stage cooling device for selected slag

Abstract

The utility model discloses a mineral separation slag slow cooling three-stage cooling device, and relates to the technical field of metallurgical slag cooling water treatment, the mineral separation slag slow cooling three-stage cooling device comprises a first-stage cooling pond, a second-stage cooling pond and a third-stage cooling pond, the first-stage cooling pond comprises a first settling pond, a second settling pond and a third settling pond, the first settling pond and the third settling pond are both communicated with the second settling pond, and the third-stage cooling pond is communicated with the third settling pond. A connecting pipe is communicated between the third sedimentation tank and the second-stage cooling tank, a cooling tower is arranged in the third-stage cooling tank, and a water inlet pipe and a water outlet pipe of the cooling tower are respectively communicated with the second-stage cooling tank and the third-stage cooling tank; three sedimentation tanks in the first-stage cooling tank are used for clarifying hot sewage for cooling slag, a certain cooling effect is achieved in the clarifying process, clarified water is sucked by a water pump in the cooling tower for further cooling work, and cooling water enters the third-stage cooling tank and is finally discharged into a slag cooling and spraying system for recycling. Therefore, the circulating water can be cooled and clarified well.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical slag cooling water treatment, and more specifically to a three-stage cooling device for slow cooling of mineral processing slag. Background Art

[0002] A large amount of slag is produced during the pyrometallurgical smelting of copper. Generally, the copper content of copper slag is 2%-5%. If these slags cannot be used reasonably, it will not only cause environmental pollution, but also cause waste of copper resources. Therefore, the reuse of these slags is of great significance to saving resources and protecting the environment. At present, it has become a trend to recover copper from copper smelting slag by the process of "slow cooling + crushing + grinding and flotation + dehydration". Among them, "slow cooling" can make copper-containing crystal minerals gather and grow in the slag bag, creating good conditions for flotation.

[0003] In the mineral processing process, the cooling water of the traditional slag slow cooling field will be discharged into the sedimentation tank through the circulation pipe after circulation, so as to achieve the effect of cooling the circulating water and clarifying the water quality. The cooled and clarified water source will continue to be circulated by pumping into the slag cooling spray pipe. However, the natural cooling and clarification time of the sedimentation tank is relatively long, which is not convenient for timely use when cooling the slag. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide a three-stage cooling device for slow cooling of ore dressing slag, which can cool and precipitate circulating water in time and quickly.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical scheme: a three-stage cooling device for slow cooling of mineral processing slag, comprising a primary cooling pool, a secondary cooling pool and a tertiary cooling pool, the primary cooling pool comprising a first sedimentation pool, a second sedimentation pool and a third sedimentation pool, the first sedimentation pool and the third sedimentation pool are both connected to the second sedimentation pool, a connecting pipe is provided between the third sedimentation pool and the secondary cooling pool, a cooling tower is arranged inside the tertiary cooling pool, and a water inlet pipe and a water outlet pipe of the cooling tower are respectively connected to the secondary cooling pool and the tertiary cooling pool.

[0006] In order to further improve the slag filtration efficiency in the circulating water, the outer wall of the first sedimentation tank is fixedly connected to a sewage inlet pipe, a control valve is installed in the middle of the sewage inlet pipe, the inner wall of the first sedimentation tank is fixedly connected to a plurality of water baffles, a first drainage hole is provided at the connection between the first sedimentation tank and the second sedimentation tank, and the plurality of water baffles are located between the sewage inlet pipe and the first drainage hole.

[0007] In order to avoid water overflow in the primary cooling tank, as a preferred three-stage cooling device for slow cooling of ore dressing slag in the utility model, a plurality of second drainage holes are provided at the connection between the second sedimentation tank and the third sedimentation tank, and a water level sensor is fixedly installed on the inner wall of the third sedimentation tank. The water level sensor is located above the plurality of second drainage holes, and the transmitting end of the water level sensor is connected to the control valve signal.

[0008] In order to facilitate the natural outflow of clarified water in the sedimentation tank to the secondary cooling tank, as a preferred three-stage cooling device for slow cooling of ore dressing slag in the utility model, the connecting pipe is inclined, and the inclination slope of the connecting pipe is 3%, and the pipe mouth of the connecting pipe close to the primary cooling tank is higher than the pipe mouth close to the secondary cooling tank.

[0009] In order to facilitate the supply of clarified water to the spray pipe, as a preferred three-stage cooling device for slow cooling of ore dressing slag in the utility model, the outer wall of the three-stage cooling pool is fixedly connected to a clean water drainage pipe, and a pump body is fixedly installed on the outer wall of the clean water drainage pipe.

[0010] The beneficial effects of the utility model are as follows: the three sedimentation tanks in the primary cooling pool are used to clarify the hot sewage from cooling the slag, and play a certain cooling role in the clarification process. The upper clarified water after sedimentation naturally flows into the secondary cooling pool through the connecting pipe for temporary storage. The stored clarified water is sucked in by the water pump in the cooling tower for further cooling. The cooling water passing through the cooling tower enters the tertiary cooling pool and is finally discharged by the pump body and the clean water drain pipe to the slag cooling spray system for repeated use, thereby achieving better cooling and clarification effects on the circulating water. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the primary cooling pool;

[0013] Figure 3 It is a schematic diagram of the structure of the secondary cooling pool and the tertiary cooling pool.

[0014] Figure numerals: 1. primary cooling tank; 2. first sedimentation tank; 201. sewage inlet pipe; 2011. control valve; 202. water baffle; 203. first drain hole; 3. second sedimentation tank; 4. third sedimentation tank; 401. second drain hole; 402. water level sensor; 5. connecting pipe; 6. secondary cooling tank; 7. tertiary cooling tank; 701. clean water drain pipe; 702. pump body; 8. cooling tower. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] See also Figure 1-3 The utility model provides the following technical solutions: a three-stage cooling device for slow cooling of ore dressing slag, comprising a primary cooling pool 1, a secondary cooling pool 6 and a tertiary cooling pool 7, the primary cooling pool 1 comprising a first sedimentation pool 2, a second sedimentation pool 3 and a third sedimentation pool 4, the first sedimentation pool 2 and the third sedimentation pool 4 are both connected to the second sedimentation pool 3, a connecting pipe 5 is connected between the third sedimentation pool 4 and the secondary cooling pool 6, a cooling tower 8 is arranged inside the tertiary cooling pool 7, and a water inlet pipe and a water outlet pipe of the cooling tower 8 are respectively connected to the secondary cooling pool 6 and the tertiary cooling pool 7.

[0018] In this embodiment: the three sedimentation tanks in the primary cooling pool 1 are used to clarify the hot wastewater for cooling the slag, and play a certain cooling role in the clarification process. Specifically, the upper clarified water after sedimentation passes through the first sedimentation tank 2, the second sedimentation tank 3 and the third sedimentation tank 4 in sequence. The upper clarified water naturally flows into the secondary cooling pool 6 through the connecting pipe 5 for temporary storage. The stored clarified water is sucked into the water pump provided in the cooling tower 8 for further cooling. The cooling water passing through the cooling tower 8 enters the tertiary cooling pool 7, and is finally discharged by the pump body 702 and the clean water drainage pipe 701 to the slag cooling spray system for repeated use, thereby achieving a better cooling and clarifying effect on the circulating water.

[0019] As a technical optimization scheme of the utility model, the outer wall of the first sedimentation tank 2 is fixedly connected to a sewage inlet pipe 201, a control valve 201 is installed in the middle of the sewage inlet pipe 201, the inner wall of the first sedimentation tank 2 is fixedly connected to a plurality of water retaining plates 202, a first drainage hole 203 is provided at the connection between the first sedimentation tank 2 and the second sedimentation tank 3, and the plurality of water retaining plates 202 are located between the sewage inlet pipe 201 and the first drainage hole 203; a plurality of second drainage holes 401 are provided at the connection between the second sedimentation tank 3 and the third sedimentation tank 4, a water level sensor 402 is fixedly installed on the inner wall of the third sedimentation tank 4, the water level sensor 402 is located above the plurality of second drainage holes 401, and the transmitting end of the water level sensor 402 is connected to the control valve 2011 signal.

[0020] In this embodiment: the sewage from cooling the slag enters the first sedimentation tank 2 through the sewage inlet pipe 201, the sewage impacts a plurality of water baffles 202, thereby blocking the precipitation of some large particles of slag, and the upper clarified water after the first sedimentation enters the second sedimentation tank 3 through the first drainage hole 203. Since the volume of the second sedimentation tank 3 is large, the clarification time is longer, and the sewage is subjected to a second sedimentation, and the upper clarified water after the second sedimentation enters the third sedimentation tank 4 through the second drainage hole 401 and undergoes a third sedimentation. After the sewage passes through the primary cooling tank 1, the effect of three sedimentations is achieved. When the clarified water in the third sedimentation tank 4 is nearly full, the water level sensor 402 transmits a signal to the control valve 2011, and the control valve 2011 is closed to prevent water from overflowing from the primary cooling tank 1.

[0021] As a technical optimization solution of the utility model, the connecting pipe 5 is inclined, and the inclination slope of the connecting pipe 5 is 3%. The pipe mouth of the connecting pipe 5 close to the primary cooling pool 1 is higher than the pipe mouth close to the secondary cooling pool 6; the outer wall of the tertiary cooling pool 7 is fixedly connected to a clean water drainage pipe 701, and the outer wall of the clean water drainage pipe 701 is fixedly installed with a pump body 702.

[0022] In this embodiment: by setting the connecting pipe 5 to be inclined, the clarified water in the primary cooling pool 1 can flow naturally into the secondary cooling pool 6, avoiding disturbing the clarified water in the third sedimentation pool 4; the tertiary cooling pool 7 is used to hold the cooled clarified water, and the clarified water is discharged into the slag cooling spray system through the pump body 702 and the clean water drainage pipe 701 for recycling.

[0023] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A three-stage cooling device for slow cooling of ore dressing slag, comprising a primary cooling pool (1), a secondary cooling pool (6) and a tertiary cooling pool (7), characterized in that: The primary cooling pool (1) comprises a first sedimentation pool (2), a second sedimentation pool (3) and a third sedimentation pool (4); the first sedimentation pool (2) and the third sedimentation pool (4) are both connected to the second sedimentation pool (3); a connecting pipe (5) is connected between the third sedimentation pool (4) and the secondary cooling pool (6); a cooling tower (8) is arranged inside the tertiary cooling pool (7); a water inlet pipe and a water outlet pipe of the cooling tower (8) are respectively connected to the secondary cooling pool (6) and the tertiary cooling pool (7).

2. The three-stage cooling device for slow cooling of ore dressing slag according to claim 1, characterized in that: The outer wall of the first sedimentation tank (2) is fixedly connected to a sewage inlet pipe (201), a control valve (2011) is installed in the middle of the sewage inlet pipe (201), the inner wall of the first sedimentation tank (2) is fixedly connected to a plurality of water retaining plates (202), a first drainage hole (203) is provided at the connection between the first sedimentation tank (2) and the second sedimentation tank (3), and the plurality of water retaining plates (202) are located between the sewage inlet pipe (201) and the first drainage hole (203).

3. The three-stage cooling device for slow cooling of ore dressing slag according to claim 2, characterized in that: A plurality of second drainage holes (401) are provided at the connection between the second sedimentation tank (3) and the third sedimentation tank (4); a water level sensor (402) is fixedly installed on the inner wall of the third sedimentation tank (4); the water level sensor (402) is located above the plurality of second drainage holes (401); and a transmitting end of the water level sensor (402) is connected to a control valve (2011) signal.

4. The three-stage cooling device for slow cooling of ore dressing slag according to claim 1, characterized in that: The connecting pipe (5) is inclined, and the inclination gradient of the connecting pipe (5) is 3%. The pipe opening of the connecting pipe (5) close to the primary cooling pool (1) is higher than the pipe opening close to the secondary cooling pool (6).

5. The three-stage cooling device for slow cooling of ore dressing slag according to claim 1, characterized in that: The outer wall of the tertiary cooling pool (7) is fixedly connected to a clean water drainage pipe (701), and a pump body (702) is fixedly installed on the outer wall of the clean water drainage pipe (701).

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