Smelting device

Abstract

The utility model provides a smelting device which comprises a furnace body, a plurality of flues are arranged at the top of the furnace body, the flues are communicated with an inner cavity of the furnace body, a plurality of feeding ports communicated with the inner cavity are formed in the top of the furnace body, and the feeding ports are formed between every two adjacent flues. The multiple feeding openings are formed in the top of the furnace body, so that it is guaranteed that raw materials are evenly added into the furnace body, and the smelting efficiency is improved; the plurality of flues are arranged at the top of the furnace body, and the staggered arrangement between the feed port and the flues is combined, so that the structure of a traditional furnace body is changed, and the flue gas in the furnace body is discharged through the plurality of flues at the same time, so that a large amount of flue gas can be discharged in time when the treatment capacity of the furnace body is relatively large; and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting equipment, and particularly relates to a smelting device. Background Art

[0002] Smelting is an important process in pyrometallurgy, which has experienced the development of blast furnaces, reverberatory furnaces, Ausmelt furnaces, flash furnaces, side-blowing furnaces and other furnace types. Especially in the past 10 years, due to the strong adaptability to raw materials, high smelting intensity, high metal recovery rate, simple operation, less flue gas emission, good environmental protection effect, good energy-saving effect, short process, less investment and low production cost of side-blowing furnaces, they are increasingly widely used in the copper smelting industry.

[0003] Existing side-blowing furnaces with large processing capacity generally discharge flue gas by setting a smoke exhaust duct in the middle position. However, with the increase of smelting requirements, the processing capacity of a single furnace body has been continuously increased, from less than 100Kt / a to the current 400Kt / a, and there is still a tendency to further expand. When the processing capacity of the furnace body increases, the amount of flue gas generated therein also increases accordingly. The existing furnace body structure with a smoke exhaust duct set in the middle position is difficult to discharge the amount of flue gas in time, affecting the production efficiency. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a smelting device, aiming to solve the technical problem that in the case of continuous increase in the processing capacity of the furnace body in the prior art, the existing furnace body structure with two-side feeding and a smoke exhaust duct set in the middle position at the top is difficult to discharge the amount of flue gas in time, affecting the production efficiency.

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

[0006] A smelting device, comprising a furnace body, wherein a plurality of flue ducts are arranged at the top of the furnace body, the flue ducts are communicated with the inner cavity of the furnace body, a plurality of feeding ports communicated with the inner cavity are opened at the top of the furnace body, and the feeding ports are arranged between adjacent two of the flue ducts.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: By arranging a plurality of the feeding ports at the top of the furnace body to ensure uniform addition of raw materials into the furnace body, the smelting efficiency is improved; By arranging a plurality of the flue ducts at the top of the furnace body and combining with the staggered arrangement between the feeding ports and the flue ducts, the structure of the traditional furnace body is changed, and the flue gas in the furnace body is discharged simultaneously through a plurality of the flue ducts, ensuring that when the processing capacity of the furnace body is large, a large amount of flue gas can be discharged in time, improving the production efficiency.

[0008] Further, two flue ducts are provided at the top of the furnace body, and the two flue ducts are located at opposite side edges of the furnace body.

[0009] Furthermore, the furnace body is a top-blown furnace, side-blown furnace, bottom-blown furnace, top-blown plus side-blown furnace or side-blown plus bottom-blown furnace.

[0010] Furthermore, the width of the furnace body is greater than 2.5 m.

[0011] Furthermore, a gas zone, a slag zone and a melt zone are formed in the inner cavity of the furnace body from top to bottom.

[0012] Furthermore, a primary tuyere is provided on the side wall of the furnace body, and the primary tuyere communicates with the slag zone.

[0013] Furthermore, a secondary tuyere is provided on the side wall of the furnace body, and the secondary tuyere communicates with the gas zone.

[0014] Furthermore, a first discharge channel communicating with the melt zone is provided on the side wall of the furnace body to discharge the molten metal in the furnace body.

[0015] Furthermore, a second discharge channel communicating with the slag zone is provided on the side wall of the furnace body to discharge the furnace slag in the furnace body, and the first discharge channel and the second discharge channel are respectively located on opposite sides of the furnace body. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the smelting device in the embodiment of the present invention;

[0017] Main Component Symbol Description:

[0018] 10. Furnace body; 11. Gas zone; 12. Slag zone; 13. Melt zone; 20. Feeding port; 30. Primary tuyere; 40. Secondary tuyere; 50. First discharge channel; 60. Second discharge channel; 70. Flue duct.

[0019] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0020] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer to Figure 1 , the smelting device in the embodiment of this utility model includes a furnace body 10. Preferably, the width of the furnace body 10 is greater than 2.5 m. By setting the width of the furnace body 10, the single - treatment capacity of the furnace body 10 can be improved to ensure meeting the production requirements. Preferably, the furnace body 10 is a top - blown furnace, a side - blown furnace, a bottom - blown furnace, a top - blown plus side - blown furnace or a side - blown plus bottom - blown furnace. In this embodiment, the furnace body 10 is a side - blown furnace.

[0024] An inner cavity of the furnace body 10 forms a gas zone 11, a slag zone 12 and a melt zone 13 from top to bottom. A primary tuyere 30 is opened on a side wall of the furnace body 10, and the primary tuyere 30 communicates with the slag zone 12 to blow in oxygen - enriched air, thereby completing the smelting work. A secondary tuyere 40 is opened on the side wall of the furnace body 10, and the secondary tuyere 40 communicates with the slag zone 12 to ensure secondary combustion of combustibles. It can be understood that a plurality of the primary tuyeres 30 and a plurality of the secondary tuyeres 40 are provided on the furnace body 10. The plurality of primary tuyeres 30 are evenly spaced along the circumferential side of the furnace body 10, and the plurality of secondary tuyeres 40 are evenly spaced along the circumferential side of the furnace body 10.

[0025] A first discharge channel 50 communicating with the melt zone 13 is opened on the side wall of the furnace body 10 to discharge the molten metal in the furnace body 10. A second discharge channel 60 communicating with the slag zone 12 is opened on the side wall of the furnace body 10 to discharge the furnace slag in the furnace body 10. The first discharge channel 50 and the second discharge channel 60 are respectively located on opposite sides of the furnace body 10.

[0026] A plurality of flue ducts 70 are provided at the top of the furnace body 10. The flue ducts 70 communicate with the inner cavity of the furnace body 10. A plurality of charging openings 20 communicating with the inner cavity are formed at the top of the furnace body 10. The charging openings 20 are arranged between two adjacent flue ducts 70. By arranging a plurality of the charging openings 20 at the top of the furnace body 10, the raw materials can be evenly added into the furnace body 10 to improve the smelting efficiency. By arranging a plurality of the flue ducts 70 at the top of the furnace body 10 and combining with the staggered arrangement between the charging openings 20 and the flue ducts 70, the structure of the traditional furnace body 10 is changed. The flue ducts 70 discharge the flue gas in the furnace body 10 simultaneously, ensuring that a large amount of flue gas can be discharged in time when the processing capacity of the furnace body 10 is large, thus improving the production efficiency.

[0027] In this embodiment, two flue ducts 70 are provided at the top of the furnace body 10. The two flue ducts 70 are located at opposite side edges of the furnace body 10. It can be understood that a plurality of the charging openings 20 are arranged between the two flue ducts 70 and are evenly spaced. In this embodiment, the two ends of the two flue ducts 70 opposite to the furnace body 10 are on the same vertical line. In some embodiments, an interval space is respectively formed between the two ends of the two flue ducts 70 opposite to the furnace body 10, that is, there is a certain distance between the end of the flue duct 70 and the furnace body 10.

[0028] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above embodiments only represent several implementation manners of the present invention. The descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A smelting device, comprising a furnace body, characterized in that, A plurality of flue ducts are arranged at the top of the furnace body. The flue ducts communicate with the inner cavity of the furnace body. A plurality of charging openings communicating with the inner cavity are formed at the top of the furnace body. The charging openings are arranged between two adjacent flue ducts.

2. The smelting device according to claim 1, characterized in that, Two flue ducts are arranged at the top of the furnace body. The two flue ducts are located at opposite side edges of the furnace body.

3. The smelting device according to claim 1, wherein The furnace body is a top-blown furnace, a side-blown furnace, a bottom-blown furnace, a top-blown and side-blown furnace or a side-blown and bottom-blown furnace.

4. The smelting device according to claim 1, characterized in that, The width of the furnace body is greater than 2.5 m.

5. The smelting device according to claim 1, characterized in that The inner cavity of the furnace body forms a gas zone, a slag zone and a melt zone from top to bottom.

6. The smelting device according to claim 5, characterized in that Primary tuyeres are formed in the side wall of the furnace body. The primary tuyeres communicate with the slag zone.

7. The smelting device according to claim 5, characterized in that, Secondary tuyeres are formed in the side wall of the furnace body. The secondary tuyeres communicate with the gas zone.

8. The smelting device according to claim 5, characterized in that A first discharge channel communicating with the melt zone is formed in the side wall of the furnace body to discharge the molten metal in the furnace body.

9. The smelting device according to claim 8, characterized in that, A second discharge channel communicating with the slag zone is formed in the side wall of the furnace body to discharge the slag in the furnace body. The first discharge channel and the second discharge channel are respectively located at opposite sides of the furnace body.

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