Copper smelting slag water quenching water treatment device and treatment method thereof

Abstract

The invention provides a copper smelting slag water quenching water treatment device and a treatment method thereof. The device comprises a chute, a granulator, a granulation chamber, a bucket elevator, a thickener, a thickener overflow pool, an underflow pump, a clear liquid pump and a flue gas spraying system, wherein the granulation chamber comprises a granulation chamber water quenching pool, a granulation chamber overflow water tank and a granulation chamber water quenching flue; the high-temperature melt flows out of the chute, is scattered by high-speed gas sprayed by a pelletizer below the chute and then falls into a water quenching pool of a pelletizing chamber to be cooled, the cooled product is fished out through a bucket elevator, and the melt with small particle size after water quenching flows to a thickener through an overflow groove and is thickened by the thickener to obtain the high-temperature melt. Supernatant liquid is lifted to a flue spraying system above the granulation chamber and a water quenching pool of the granulation chamber through a supernatant liquid pump, and solid particles settled at the bottom of the thickener are lifted into the granulation chamber through an underflow pump. According to the invention, 10% of the transfer cost of the fine particle cooling product can be saved; clear liquid generated after thickening is returned to the water quenching pool through a clear liquid pump, so that a backwater-free granulation process is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of copper smelting, and in particular relates to a copper smelting slag water quenching treatment device and a treatment method thereof. Background Art

[0002] The high-temperature melt discharged from copper smelting adopts the water quenching + wind crushing cooling process. This process causes the water quenching circulating water to carry away some of the cooled metal materials that have not settled in the water quenching pool in time, resulting in easy accumulation of materials and blockage in the return water ditch. The cooling products settled in the return water pool need to be salvaged again, which increases the daily operating costs and reduces the direct recovery rate of the copper smelting process. It is not economical for copper smelting production. Therefore, how to achieve the water quenching process of high-temperature melt in copper smelting without generating return water and all cooled metal materials can be directly recycled is an urgent problem to be solved. Summary of the invention

[0003] In view of the defect of low cooling product recovery rate in the current copper smelting slag water quenching treatment process, the present invention provides a copper smelting slag water quenching treatment device and a treatment method thereof, which effectively solves the problems of large water consumption and low cooling product recovery rate in the copper smelting slag water quenching treatment process.

[0004] The present invention is achieved through the following technical solutions: A copper smelting slag quenching treatment device, comprising a chute, a granulator, a granulation chamber, a bucket elevator, a thickener, a night clearing pump and an underflow pump; The chute is arranged on the side wall of the granulation chamber and penetrates into the interior of the granulation chamber; The granulator comprises a gas inlet and a gas nozzle, which are arranged on the side wall of the granulating chamber and are not located at the lower part of the chute, and penetrate into the interior of the granulating chamber; The lower part of the granulating chamber is surrounded by sloped surfaces and the bottom is a plane, including a granulating chamber water quenching flue, a granulating chamber water quenching pool and a granulating chamber overflow water tank; the granulating chamber water quenching flue is located at the top of the granulating chamber, and a flue gas spray system is arranged in the granulating chamber water quenching flue; the granulating chamber overflow water tank is located inside the granulating chamber on a side away from the granulator, and the granulating chamber overflow water tank is connected to the thickener; the granulating chamber water quenching pool is connected to an external water tank through a new water pipeline to replenish new water; the opening of the new water replenishment pipeline valve is interlocked and automatically controlled with the thickener overflow tank to automatically adjust the new water replenishment amount; The bucket elevator is arranged on the inclined surface of the granulating chamber away from the granulator; The thickener is connected to the thickener overflow tank, the thickener overflow tank is connected to a clear liquid pump, and the clear liquid pump is connected to the flue gas spray system and the granulation chamber water quenching tank through pipelines; the bottom discharge port of the thickener is connected to an underflow pump, and the underflow pump is connected to the granulation chamber water quenching tank through a pipeline.

[0005] As a further improvement of the present invention, the granulator is a dense gas granulator in which the gas is ejected from fine slits, or a multi-point gas granulator in which the gas is ejected from gas nozzles uniformly distributed at multiple points.

[0006] As a further improvement of the present invention, the spray system includes a spray water pipe and a high-speed atomizing nozzle, the spray water pipe is connected to the clear liquid pump, and the high-speed atomizing nozzle is evenly distributed on the cross section of the water quenching flue of the granulation chamber.

[0007] As a further improvement of the present invention, the bottom of the trough of the thickener is arranged as an inclined surface, so that the trough is a large-diameter shallow trough with a slightly conical bottom. The rake is arranged at the bottom of the trough near the thickener, and the rake rotates slowly at the bottom of the trough to promote bottom flow compression without causing agitation.

[0008] As a further improvement of the present invention, the angle between the injection direction of the gas nozzle of the granulator and the horizontal direction is -5° to 30°.

[0009] The present invention allows the high-temperature melt discharged in the copper smelting process to flow out from the chute into the granulation chamber, be dispersed by the high-speed gas sprayed from the granulator below the chute, fall into the water quenching pool in the granulation chamber for cooling, and the cooled product is fished out by a bucket elevator. The melt with a smaller particle size after water quenching will flow to the thickener through the overflow trough. After being thickened by the thickener, the upper clear liquid is pumped to the flue spray system above the granulation chamber and the water quenching pool in the granulation chamber by a clear liquid pump, and the solid particles settled at the bottom of the thickener are pumped into the granulation chamber by an underflow pump.

[0010] The treatment method of the copper smelting slag quenching treatment device comprises the following steps: S1: The high-temperature melt flows into the granulation chamber through the chute at a flow rate of 50-100m³ / h, and the granulator is opened to spray high-speed gas to break up the high-temperature melt into particles. The broken high-temperature melt flows into the water quenching pool of the granulation chamber and is cooled by the quenching water, and then is fished out by the bucket elevator; S2: Continuously add new water to the granulation chamber water quenching pool at 30-60m³ / h through the pipeline to ensure that the amount of water added is equal to the amount of evaporation of water quenching water, and the water level in the granulation chamber water quenching pool can always overflow into the overflow tank of the granulation chamber; S3: Part of the fine particle cooling product and the water quenching water flow into the thickener through the overflow tank of the granulation chamber; after continuous sedimentation, the supernatant of the thickener overflows into the thickener overflow tank, and then is pumped to the flue gas spray system and the granulation chamber water quenching tank by the night pump; S4: The fine particles entering the thickener are cooled and form a thick slurry at the bottom of the thickener, which is pumped into the water quenching tank in the granulation chamber by the underflow pump and then scooped out by the bucket elevator; S5: The water-quenched flue gas generated by the cooling of the high-temperature melt particles in the water quenching pool of the granulating chamber will carry away some of the fine particles of the cooling product and enter the flue of the granulating chamber. After being washed by the spray water curtain of the spray system, the fine particles of the cooling product fall into the water quenching pool of the granulating chamber for recovery, and the water-quenched flue gas enters the subsequent flue gas treatment; The high-speed gas is any one of high-pressure air and high-pressure nitrogen. The pressure of the high-speed gas is 0.3-0.8 MPa and the flow rate is 2000-5000 m 3 .

[0011] Preferably, the pressure of the spray system is 0.5-0.8 MPa, and the flow rate is 20-100 m³ / h.

[0012] Preferably, the water quenching temperature in the water quenching tank of the granulating chamber is 40°C to 80°C.

[0013] Preferably, the valve opening of the new water pipeline is adjusted so that the water level fluctuation in the thickener overflow tank is within ±0.5m to ensure water balance in the system.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention firstly uses wind granulation to break up the high temperature melt, and the broken melt particles then fall into the water quenching pool for cooling. No extra water quenching nozzles need to be added. Only a small amount of new water needs to be added during the production process to balance the evaporation of water quenching.

[0015] 2. The fine particle cooling product produced by the present invention is concentrated by a thickener and then pumped to the water quenching tank in the granulation chamber by an underflow pump without the need for salvaging, thereby saving 10% of the transportation cost of the fine particle cooling product; the clear liquid produced after the concentration is returned to the water quenching tank by a clear liquid pump, thus realizing a process of granulation without return water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic plan view of the copper smelting slag water quenching treatment device of the present invention.

[0017] Figure 2 Schematic diagram of the nozzle structure of a multi-point gas granulator.

[0018] Figure 3 Schematic diagram of the dense gas granulator nozzle structure.

[0019] Figure 4 It is a process flow chart of the present invention.

[0020] Figure numerals: 1-chute, 2-granulator, 3-granulation chamber, 301-granulation chamber water quenching flue, 302-granulation chamber water quenching tank, 4-new water pipeline, 5-bucket elevator, 6-granulation chamber overflow trough, 7-thickener, 8-thickener overflow tank, 9-clear liquid pump, 10-underflow pump, 11-spraying system. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings. In the embodiments, unless otherwise specified, the technical means used are all conventional technical means in the art. Example 1

[0022] like Figure 1 A copper smelting slag quenching treatment device shown includes a chute 1, a granulator 2, a granulation chamber 3, a bucket elevator 5, a thickener 7, a night cleaning pump 9 and an underflow pump 10; The chute 1 is arranged on the side wall of the granulating chamber 3 and penetrates into the interior of the granulating chamber 3; like Figure 2 As shown, the granulator 2 is a multi-point gas granulator in which gas is ejected from gas nozzles evenly distributed at multiple points. The gas nozzles are arranged on the side wall of the granulating chamber 3 and are not located at the lower part of the chute 1, but penetrate into the interior of the granulating chamber 3. The injection direction of the gas nozzles of the granulator 2 is at an angle of -5° to the horizontal direction.

[0023] The lower part of the granulating chamber 3 is surrounded by a slope surface, and the bottom is a plane, including a granulating chamber water quenching flue 301, a granulating chamber water quenching pool 302 and a granulating chamber overflow water tank 6; the granulating chamber water quenching flue 301 is located at the top of the granulating chamber 3, and a flue gas spray system 11 is arranged in the granulating chamber water quenching flue 301; the granulating chamber overflow water tank 6 is located inside the granulating chamber 3 on the side away from the granulator 2, and the granulating chamber overflow water tank 6 is connected to the thickener 7; the granulating chamber water quenching pool 302 is connected to the external water tank through the new water pipeline 4 to replenish new water; the opening of the new water replenishment pipeline valve is interlocked with the thickener overflow pool 8 for automatic control, and the new water replenishment amount is automatically adjusted; The bucket elevator 5 is arranged on a slope of the granulating chamber 3 away from the granulator 2; The thickener 7 is connected to the thickener overflow tank 8, and the thickener overflow tank 8 is connected to a clear liquid pump 9, which is respectively connected to the flue gas spray system 11 and the granulation chamber water quenching tank 302 through pipelines; the bottom discharge port of the thickener 7 is connected to an underflow pump 10, and the underflow pump 10 is connected to the granulation chamber water quenching tank 302 through a pipeline. The bottom of the tank body of the thickener 7 is arranged as an inclined surface, so that the tank body is a shallow tank body with a large diameter and a slightly conical bottom. The rake is arranged at the bottom of the tank body near the thickener 7, and the rake rotates slowly at the bottom of the tank body to promote underflow compression without causing agitation.

[0024] The spray system 11 includes a spray water pipe and a high-speed atomizing nozzle. The spray water pipe is connected to the clear liquid pump 9. The high-speed atomizing nozzle is evenly distributed on the cross section of the water quenching flue 3 of the granulating chamber.

[0025] The treatment method of the copper smelting slag quenching treatment device comprises the following steps: S1: The high-temperature melt flows into the granulation chamber 3 through the chute 1 at a flow rate of 50m³ / h, and at the same time, the granulator 2 is opened to spray high-speed gas to break up the high-temperature melt into particles. The broken high-temperature melt flows into the water quenching pool 302 of the granulation chamber and is cooled by 40°C quenching water, and then is fished out by the bucket elevator 5; S2: Continuously add new water to the granulation chamber water quenching pool 302 at 30m³ / h through the pipeline to ensure that the amount of water added is equal to the amount of evaporation of the water quenching water, and the water level in the granulation chamber water quenching pool 302 can always overflow into the granulation chamber overflow tank 6; S3: Part of the fine particle cooling product and the water quenching water flow into the thickener 7 through the overflow tank 6 of the granulation chamber; after continuous sedimentation, the supernatant of the thickener 7 overflows into the thickener overflow tank 8, and then is pumped to the flue gas spray system 11 and the granulation chamber water quenching tank 302 through the night pump 9; the water level in the thickener overflow tank 8 fluctuates within ±0.5m by adjusting the valve opening of the new water pipeline 4 to ensure the water balance in the system; S4: The fine particles entering the thickener 7 are cooled and form a thick slurry at the bottom of the thickener 7, which is pumped into the water quenching tank 302 of the granulation chamber by the underflow pump 10 and then fished out by the bucket elevator 5; S5: The water-quenched flue gas generated by the cooling of the high-temperature melt particles in the water quenching pool 302 of the granulating chamber will carry away some of the fine particles of the cooling product and enter the flue 301 of the granulating chamber. After being washed by the spray water curtain of the spray system 11, the fine particles of the cooling product fall into the water quenching pool of the granulating chamber for recovery, and the water-quenched flue gas enters the subsequent flue gas treatment.

[0026] The pressure of the spray system 11 is 0.5 MPa and the flow rate is 20 m³ / h. Example 2

[0027] like Figure 1 A copper smelting slag quenching treatment device shown includes a chute 1, a granulator 2, a granulation chamber 3, a bucket elevator 5, a thickener 7, a night cleaning pump 9 and an underflow pump 10; The chute 1 is arranged on the side wall of the granulating chamber 3 and penetrates into the interior of the granulating chamber 3; like Figure 3 As shown, the granulator 2 is a dense gas granulator in which gas is ejected from a narrow gap, which is arranged on the side wall of the granulating chamber 3 and is not located at the lower part of the chute 1, but penetrates into the interior of the granulating chamber 3; the injection direction of the gas nozzle of the granulator 2 is at an angle of 10° to the horizontal direction.

[0028] The lower part of the granulating chamber 3 is surrounded by a slope surface, and the bottom is a plane, including a granulating chamber water quenching flue 301, a granulating chamber water quenching pool 302 and a granulating chamber overflow water tank 6; the granulating chamber water quenching flue 301 is located at the top of the granulating chamber 3, and a flue gas spray system 11 is arranged in the granulating chamber water quenching flue 301; the granulating chamber overflow water tank 6 is located inside the granulating chamber 3 on the side away from the granulator 2, and the granulating chamber overflow water tank 6 is connected to the thickener 7; the granulating chamber water quenching pool 302 is connected to the external water tank through the new water pipeline 4 to replenish new water; the opening of the new water replenishment pipeline valve is interlocked with the thickener overflow pool 8 for automatic control, and the new water replenishment amount is automatically adjusted; The bucket elevator 5 is arranged on a slope of the granulating chamber 3 away from the granulator 2; The thickener 7 is connected to the thickener overflow tank 8, and the thickener overflow tank 8 is connected to a clear liquid pump 9, which is respectively connected to the flue gas spray system 11 and the granulation chamber water quenching tank 302 through pipelines; the bottom discharge port of the thickener 7 is connected to an underflow pump 10, and the underflow pump 10 is connected to the granulation chamber water quenching tank 302 through a pipeline. The bottom of the tank body of the thickener 7 is arranged as an inclined surface, so that the tank body is a shallow tank body with a large diameter and a slightly conical bottom. The rake is arranged at the bottom of the tank body near the thickener 7, and the rake rotates slowly at the bottom of the tank body to promote underflow compression without causing agitation.

[0029] The spray system 11 includes a spray water pipe and a high-speed atomizing nozzle. The spray water pipe is connected to the clear liquid pump 9. The high-speed atomizing nozzle is evenly distributed on the cross section of the water quenching flue 3 of the granulating chamber.

[0030] The treatment method of the copper smelting slag quenching treatment device comprises the following steps: S1: The high-temperature melt flows into the granulation chamber 3 through the chute 1 at a flow rate of 80m³ / h, and at the same time, the granulator 2 is opened to spray high-speed gas to break up the high-temperature melt into particles. The broken high-temperature melt flows into the water quenching pool 302 of the granulation chamber and is cooled by 60°C water quenching water, and then is fished out by the bucket elevator 5; S2: Continuously add new water to the granulation chamber water quenching pool 302 at 48m³ / h through the pipeline to ensure that the amount of water added is equal to the amount of evaporation of the water quenching water, and the water level in the granulation chamber water quenching pool 302 can always overflow into the granulation chamber overflow tank 6; S3: Part of the fine particle cooling product and the water quenching water flow into the thickener 7 through the overflow tank 6 of the granulation chamber; after continuous sedimentation, the supernatant of the thickener 7 overflows into the thickener overflow tank 8, and then is pumped to the flue gas spray system 11 and the granulation chamber water quenching tank 302 through the night pump 9; the water level in the thickener overflow tank 8 fluctuates within ±0.5m by adjusting the valve opening of the new water pipeline 4 to ensure the water balance in the system; S4: The fine particles entering the thickener 7 are cooled and form a thick slurry at the bottom of the thickener 7, which is pumped into the water quenching tank 302 of the granulation chamber by the underflow pump 10 and then fished out by the bucket elevator 5; S5: The water-quenched flue gas generated by the cooling of the high-temperature melt particles in the water quenching pool 302 of the granulating chamber will carry away some of the fine particles of the cooling product and enter the flue 301 of the granulating chamber. After being washed by the spray water curtain of the spray system 11, the fine particles of the cooling product fall into the water quenching pool of the granulating chamber for recovery, and the water-quenched flue gas enters the subsequent flue gas treatment.

[0031] The pressure of the spray system 11 is 0.6Mpa and the flow rate is 50m³. Example 3

[0032] like Figure 1 A copper smelting slag quenching treatment device shown includes a chute 1, a granulator 2, a granulation chamber 3, a bucket elevator 5, a thickener 7, a night cleaning pump 9 and an underflow pump 10; The chute 1 is arranged on the side wall of the granulating chamber 3 and penetrates into the interior of the granulating chamber 3; like Figure 2 As shown, the granulator 2 is a multi-point gas granulator in which gas is ejected from gas nozzles evenly distributed at multiple points. The gas nozzles are arranged on the side wall of the granulating chamber 3 and are not located at the lower part of the chute 1, but penetrate into the interior of the granulating chamber 3. The injection direction of the gas nozzles of the granulator 2 is at an angle of 30° to the horizontal direction.

[0033] The lower part of the granulating chamber 3 is surrounded by a slope surface, and the bottom is a plane, including a granulating chamber water quenching flue 301, a granulating chamber water quenching pool 302 and a granulating chamber overflow water tank 6; the granulating chamber water quenching flue 301 is located at the top of the granulating chamber 3, and a flue gas spray system 11 is arranged in the granulating chamber water quenching flue 301; the granulating chamber overflow water tank 6 is located inside the granulating chamber 3 on the side away from the granulator 2, and the granulating chamber overflow water tank 6 is connected to the thickener 7; the granulating chamber water quenching pool 302 is connected to the external water tank through the new water pipeline 4 to replenish new water; the opening of the new water replenishment pipeline valve is interlocked with the thickener overflow pool 8 for automatic control, and the new water replenishment amount is automatically adjusted; The bucket elevator 5 is arranged on a slope of the granulating chamber 3 away from the granulator 2; The thickener 7 is connected to the thickener overflow tank 8, and the thickener overflow tank 8 is connected to a clear liquid pump 9, which is respectively connected to the flue gas spray system 11 and the granulation chamber water quenching tank 302 through pipelines; the bottom discharge port of the thickener 7 is connected to an underflow pump 10, and the underflow pump 10 is connected to the granulation chamber water quenching tank 302 through a pipeline. The bottom of the tank body of the thickener 7 is arranged as an inclined surface, so that the tank body is a shallow tank body with a large diameter and a slightly conical bottom. The rake is arranged at the bottom of the tank body near the thickener 7, and the rake rotates slowly at the bottom of the tank body to promote underflow compression without causing agitation.

[0034] The spray system 11 includes a spray water pipe and a high-speed atomizing nozzle. The spray water pipe is connected to the clear liquid pump 9. The high-speed atomizing nozzle is evenly distributed on the cross section of the water quenching flue 3 of the granulating chamber.

[0035] The treatment method of the copper smelting slag quenching treatment device comprises the following steps: S1: The high-temperature melt flows into the granulation chamber 3 through the chute 1 at a flow rate of 100m³ / h, and at the same time, the granulator 2 is opened to spray high-speed gas to break up the high-temperature melt into particles. The broken high-temperature melt flows into the water quenching pool 302 of the granulation chamber and is cooled by 80°C water quenching water, and then is fished out by the bucket elevator 5; S2: Continuously add new water to the granulation chamber water quenching pool 302 at 60m³ / h through the pipeline to ensure that the amount of water added is equal to the amount of evaporation of the water quenching water, and the water level in the granulation chamber water quenching pool 302 can always overflow into the granulation chamber overflow tank 6; S3: Part of the fine particle cooling product and the water quenching water flow into the thickener 7 through the overflow tank 6 of the granulation chamber; after continuous sedimentation, the supernatant of the thickener 7 overflows into the thickener overflow tank 8, and then is pumped to the flue gas spray system 11 and the granulation chamber water quenching tank 302 through the night pump 9; the water level in the thickener overflow tank 8 fluctuates within ±0.5m by adjusting the valve opening of the new water pipeline 4 to ensure the water balance in the system; S4: The fine particles entering the thickener 7 are cooled and form a thick slurry at the bottom of the thickener 7, which is pumped into the water quenching tank 302 of the granulation chamber by the underflow pump 10 and then fished out by the bucket elevator 5; S5: The water-quenched flue gas generated by the cooling of the high-temperature melt particles in the water quenching pool 302 of the granulating chamber will carry away some of the fine particles of the cooling product and enter the flue 301 of the granulating chamber. After being washed by the spray water curtain of the spray system 11, the fine particles of the cooling product fall into the water quenching pool of the granulating chamber for recovery, and the water-quenched flue gas enters the subsequent flue gas treatment.

[0036] The pressure of the spray system 11 is 0.8 MPa and the flow rate is 100 m³.

[0037] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A copper smelting slag quenching treatment device, characterized in that: It includes a chute (1), a granulator (2), a granulation chamber (3), a bucket elevator (5), a thickener (7), a night cleaning pump (9) and an underflow pump (10); The chute (1) is arranged on the side wall of the granulation chamber (3) and penetrates into the interior of the granulation chamber (3); The granulator (2) comprises a gas inlet and a gas nozzle, which are arranged on the side wall of the granulating chamber (3) and are not located at the bottom of the chute (1), and penetrate into the interior of the granulating chamber (3); The lower part of the granulating chamber (3) is surrounded by a sloped surface and has a flat bottom, and comprises a granulating chamber water quenching flue (301), a granulating chamber water quenching pool (302) and a granulating chamber overflow water tank (6); the granulating chamber water quenching flue (301) is located at the top of the granulating chamber (3), and a flue gas spray system (11) is provided in the granulating chamber water quenching flue (301); the granulating chamber overflow water tank (6) is located inside the granulating chamber (3) on a side away from the granulator (2), and the granulating chamber overflow water tank (6) is connected to the thickener (7); the granulating chamber water quenching pool (302) is connected to an external water tank through a new water pipeline (4) to replenish new water; The bucket elevator (5) is arranged on a side slope of the granulating chamber (3) away from the granulator (2); The thickener (7) is connected to a thickener overflow tank (8), the thickener overflow tank (8) is connected to a clear liquid pump (9), and the clear liquid pump (9) is connected to a flue gas spray system (11) and a granulation chamber water quenching tank (302) through pipelines. The bottom discharge port of the thickener (7) is connected to an underflow pump (10), and the underflow pump (10) is connected to the granulation chamber water quenching tank (302) through a pipeline.

2. The copper smelting slag quenching treatment device according to claim 1 is characterized in that: The granulator (2) is a dense gas granulator in which gas is ejected from fine slits, or a multi-point gas granulator in which gas is ejected from gas nozzles that are evenly distributed at multiple points.

3. The copper smelting slag quenching treatment device according to claim 1, characterized in that: The spray system (11) comprises a spray water pipe and a high-speed atomizing nozzle. The spray water pipe is connected to the clear liquid pump (9). The high-speed atomizing nozzle is evenly distributed on the cross section of the water quenching flue (3) of the granulating chamber.

4. The copper smelting slag quenching treatment device according to claim 1, characterized in that: The bottom of the trough of the thickener (7) is arranged as an inclined surface, and the rake is arranged at the bottom of the trough close to the thickener (7).

5. The copper smelting slag quenching treatment device according to claim 1, characterized in that: The angle between the injection direction of the gas nozzle of the granulator (2) and the horizontal direction is -5° to 30°.

6. The treatment method of the copper smelting slag quenching treatment device according to any of claims 1 to 5, characterized in that: The following steps are involved: S1: The high-temperature melt flows into the granulation chamber (3) through the chute (1) at a flow rate of 50-100 m³ / h, and at the same time, the granulator (2) is opened to spray high-speed gas to break up the high-temperature melt into particles. The broken high-temperature melt flows into the water quenching pool (302) of the granulation chamber to be cooled by the quenching water, and then is scooped out by the bucket elevator (5); S2: continuously adding new water to the granulating chamber water quenching pool (302) through the pipeline at a rate of 30-60 m³ / h, ensuring that the amount of added water is equal to the amount of evaporation of the quenching water, and that the water level in the granulating chamber water quenching pool (302) can always overflow into the granulating chamber overflow tank (6); S3: Part of the fine particle cooling product and the water quenching water flow into the thickener (7) through the overflow trough (6) of the granulation chamber; after continuous sedimentation, the supernatant of the thickener (7) overflows into the thickener overflow tank (8), and is then pumped to the flue gas spray system (11) and the granulation chamber water quenching tank (302) through the night clearing pump (9); S4: The fine particles entering the thickener (7) are cooled and form a thick slurry at the bottom of the thickener (7). The slurry is pumped into the water quenching tank (302) of the granulation chamber by the underflow pump (10) and then scooped out by the bucket elevator (5); S5: The water-quenched flue gas generated by the cooling of the high-temperature melt particles in the water-quenching pool (302) of the granulating chamber will carry away some of the fine particles of the cooling product and enter the flue (301) of the granulating chamber. After being washed by the spray water curtain of the spray system (11), the fine particles of the cooling product fall into the water-quenching pool of the granulating chamber for recovery, and the water-quenched flue gas enters the subsequent flue gas treatment; The high-speed gas is any one of high-pressure air and high-pressure nitrogen. The pressure of the high-speed gas is 0.3-0.8 MPa and the flow rate is 2000-5000 m 3 .

7. The treatment method of the copper smelting slag quenching treatment device according to claim 6, characterized in that: The pressure of the spray system (11) is 0.5-0.8 MPa, and the flow rate is 20-100 m³ / h.

8. The treatment method of the copper smelting slag quenching treatment device according to claim 6, characterized in that: The water quenching temperature in the water quenching tank (302) of the granulating chamber is 40°C to 80°C.

9. The treatment method of the copper smelting slag quenching treatment device according to claim 6, characterized in that: By adjusting the valve opening of the new water pipeline (4), the water level fluctuation in the thickener overflow tank (8) is kept within ±0.5 m, thereby ensuring water balance in the system.

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