Copper matte granulating device

Abstract

The utility model provides a matte granulating device, which is characterized in that a matte granulating device body comprises a steam part and a cold water injection area, the steam part is integrally in a groove shape with an upward opening and a groove length direction consistent with that of a chute, and the tail end of the chute is positioned in a groove cavity of the steam part; steam sprayers are arranged on the groove walls on the two sides of the steam part and the outer side end face of the groove bottom, on one hand, the steam sprayers play a role in restraining the copper matte melt flow, so that a throwing flow path, deviating from the extending direction of the chute, of the copper flow is rectified, and on the other hand, the steam sprayers exert a sweeping effect on the copper matte melt flow, so that the copper flow is in a waterfall shape; and the matte melt can fully react with the cold water injection area below the steam part and fall into the granulation tank after being granulated.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper smelting, and in particular relates to a matte granulating device. Background Art

[0002] The copper smelting process generally involves smelting the selected copper concentrate to obtain matte, which is then transferred to a blowing furnace for blowing to obtain blister copper. The so-called matte is also called molten copper, which is mainly formed by the melting of cuprous sulfide and ferrous sulfide.

[0003] At present, flash smelting and flash converting are widely adopted by smelting enterprises due to their environmental protection and high efficiency. Flash converting uses fine matte as the processing raw material. Due to the increase in the surface area of ​​the raw material, the converting efficiency is improved. The matte in the flash smelting furnace falls into the granulation pool after water quenching and granulation, and then falls into the belt after being lifted by the bucket elevator and transported to the matte yard. However, during the granulation process, since the last section of the matte chute is collected into the granulation pool through two chutes, and the temperature and flow changes of the matte and the discharge time will cause the matte chute to stick, and the structure of the chute itself is not linear, there is a possibility that the matte melt is not in the middle of the drop point, resulting in the matte melt being unable to be water quenched and granulated normally, and eventually leading to the accumulation of large matte bodies in the granulation pool, the granulation pool cannot continue to release copper, thus affecting production, and the large matte blocks will damage the bucket, and even jam the tail wheel of the matte scooping machine, making the matte scooping machine unable to operate, which has a great negative impact on production. Utility Model Content

[0004] The utility model provides a matte granulating device, which aims to enable the matte melt in a matte chute to be evenly granulated and then fall into a granulating pool.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A matte granulation device, the matte granulation device body includes a steam part and a cold water spray area, the steam part is generally in the shape of a trough with an opening facing upward and a trough length direction consistent with the trough length direction of a chute, the end of the chute is located in the trough cavity of the steam part, steam nozzles are provided on the trough walls on both sides of the steam part and the outer end faces of the trough bottom, the steam nozzles point in the extension direction of the chute, the cold water spray area is located below and near the steam part, and the cold water nozzles on the cold water spray area point in the extension direction of the chute.

[0007] In the above scheme, the main body of the matte granulation device includes a steam section and a cold water spraying area. The steam section as a whole is in the shape of a trough with an opening facing upward and a trough length direction consistent with the trough length direction of the chute. The end of the chute is located in the trough cavity of the steam section. Steam nozzles are provided on the trough walls on both sides of the steam section and the outer end faces of the trough bottom. The steam nozzles point to the extension direction of the chute to ensure that even if the position of the matte melt flowing out of the matte chute is offset, the matte melt can still be evenly dispersed by the steam of the steam nozzle, so that the matte melt can fully react with the cold water spraying area located below the steam section for granulation and then fall into the granulation pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0009] like Figure 1 A matte granulation device is shown, and the matte granulation device body 10 includes a steam section 11 and a cold water spraying area 12. The steam section 11 is generally in the shape of a trough with an opening facing upward and a trough length direction consistent with the trough length direction of a chute 20. The end of the chute 20 is located in the trough cavity of the steam section 11. Steam nozzles 111 are provided on the trough walls on both sides of the steam section 11 and the outer end faces of the trough bottom. The steam nozzles 111 point in the extension direction of the chute 20. The cold water spraying area 12 is located near the bottom of the steam section 11, and the cold water nozzles 121 on the cold water spraying area 12 point in the extension direction of the chute 20.

[0010] In the above scheme, the main body 10 of the matte granulation device includes a steam section 11 and a cold water spraying area 12. The end of the chute 20 is located in the trough cavity of the steam section 11. It should be noted that the steam section 11 can be regarded as a steam chamber composed of a tube or box-shaped component, which is surrounded by the trough bottom and trough wall at the end of the chute 20. The steam section 11 is projected into a trough shape that matches the outer wall surface of the chute 20 on a cross section perpendicular to the trough length direction of the chute 20. The trough walls on both sides of the steam section 11 and the outer end surface of the trough bottom are A steam nozzle 111 is provided on the top, and the steam nozzle 111 points to the extension direction of the chute 20. The steam sprayed by the steam nozzle 111 has a restraining effect on the molten copper flow, so that the copper flow deviates from the extension direction of the chute 20 and the throwing flow path can be corrected. On the other hand, a sweeping effect is applied to the molten copper flow, which is conducive to the copper flow to be in a waterfall shape. The waterfall-shaped copper flow intersects with the cold water sprayed by the cold water spray area 12 arranged adjacent to the bottom of the steam part 11, and the molten copper is evenly granulated and falls into the granulation pool.

[0011] Furthermore, the shape and contour of the steam section 11 are consistent with that of the chute 20, and the steam nozzles 111 are evenly spaced and arranged on the outer end faces of the trough walls and the bottom of the steam section 11. In the above scheme, the shape and contour of the steam section 11 are consistent with that of the chute 20, and the end of the chute 20 can be placed in the trough cavity of the steam section 11, so as to ensure that the columnar matte melt flowing out of the end of the chute 20 is swept by the gas sprayed from the steam section 11 in a waterfall shape.

[0012] Furthermore, in order to ensure the dispersion effect of the matte melt, the gas jet direction of the steam nozzle 111 is directed to the falling path of the material in the chute 20. The correction of the deviated matte melt is mainly the result of the steam nozzles 111 at the trough walls on both sides of the chute 20. The function of the steam nozzles 111 at the bottom is mainly to sweep the columnar matte melt to make the copper flow thinner and form a waterfall, which can improve the granulation effect.

[0013] This helps to reduce the layout range of the cold water spraying area 12 within the width of the chute 20, saving equipment costs and water resources.

[0014] Preferably, the steam section 11 and the cold water spraying area 12 are fixedly connected by two connecting blocks 13 arranged at intervals in the horizontal direction. In the above scheme, the steam section 11 and the cold water spraying area 12 are arranged at intervals. When the matte melt contacts the steam sprayed from the steam section 11, the matte melt is dispersed for a distance and then contacts the sprayed water flow sprayed from the cold water spraying area 12, thereby ensuring that the shape and size of the granulated matte particles are uniform.

Claims

1. A matte granulation device, characterized in that: The main body (10) of the matte granulation device includes a steam section (11) and a cold water spraying area (12). The steam section (11) is generally in the shape of a groove with an opening facing upward and a groove length direction consistent with the groove length direction of the chute (20). The end of the chute (20) is located in the groove cavity of the steam section (11). Steam nozzles (111) are provided on the groove walls on both sides of the steam section (11) and the outer end faces of the groove bottom. The steam nozzles (111) point in the extension direction of the chute (20). The cold water spraying area (12) is located near the bottom of the steam section (11), and the cold water nozzles (121) on the cold water spraying area (12) point in the extension direction of the chute (20).

2. The matte granulation device according to claim 1, characterized in that: The steam section (11) has the same shape as the chute (20), and the steam nozzles (111) are evenly spaced and arranged on the side walls of the steam section (11) and the outer end surface of the chute bottom.

3. The matte granulation device according to claim 2, characterized in that: The gas jet direction of the steam nozzle (111) points to the falling path of the materials in the chute (20).

4. The matte granulation device according to claim 1, characterized in that: The spray direction of the cold water spray head (121) in the cold water spraying area (12) points to the dropping path of the materials in the chute (20).

5. The matte granulation device according to claim 1, characterized in that: The steam portion (11) is fixedly connected to the cold water spraying area (12) via two connecting blocks (13) which are arranged at intervals in the horizontal direction.

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