CN220911974U

CN220911974U - Bottom blowing refining furnace for improving anode copper quality

Info

Publication number: CN220911974U
Application number: CN202322380498.6U
Authority: CN
Inventors: 李锋; 张海鑫; 郝小红; 刘恺; 曹珂菲
Original assignee: China ENFI Engineering Corp; China Nonferrous Metals Engineering Co Ltd
Current assignee: China ENFI Engineering Corp; China Nonferrous Metals Engineering Co Ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-05-07
Anticipated expiration: 2033-09-01

Abstract

The utility model discloses a bottom blowing refining furnace for improving the quality of anode copper, which comprises a rotary furnace, supporting rollers and a transmission device, wherein the rotary furnace comprises a furnace body, a slag hole, a smoke outlet, a copper matte inlet and a copper discharging hole, a furnace space is arranged in the furnace body, the smoke outlet is positioned at the upper part of the furnace body and is communicated with the furnace space, the copper matte inlet and the copper discharging hole are respectively positioned at a first end and a second end of the furnace body in the length direction, the slag hole is positioned at the first end and the second end of the furnace body, the copper discharging hole and the slag hole positioned at the second end are respectively positioned at two sides of the furnace body, the two supporting rollers are connected with the furnace body, a group of oxygen guns are arranged between the two supporting rollers, and enter the furnace space, and the transmission device is positioned below the furnace body and is in transmission connection with the furnace body. The bottom blowing refining furnace for improving the quality of anode copper has the advantages of high slag discharging speed and less slag storage.

Description

Bottom blowing refining furnace for improving anode copper quality

Technical Field

The utility model relates to the technical field of bottom blowing furnaces, in particular to a bottom blowing refining furnace for improving the quality of anode copper.

Background

The bottom blowing refining furnace (namely a fire refining furnace in two-step copper smelting) in the prior art can finish the copper matte blowing and the crude copper refining in one furnace body in stages, but when the slag discharging is finished in the blowing and crude copper oxidation stages, the furnace body structure is blocked by the stirring of spray gun gas, so that the slag in the furnace is not thoroughly discharged, the slag discharging time is long, impurities contained in slag remained in the furnace during the crude copper reduction are returned into the metal melt, the quality of anode copper is lower, copper content is less than 98.8%, the pressure of the subsequent copper electrolysis process is high, the burden of removing impurities from clean liquid is aggravated, and the anode mud rate is improved.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a bottom blowing refining furnace for improving the quality of anode copper, which has the advantages of high slag discharging speed and less slag storage.

According to the bottom blowing refining furnace for improving the quality of anode copper, which is disclosed by the embodiment of the utility model, the bottom blowing refining furnace for improving the quality of anode copper comprises a rotary furnace, carrier rollers and a transmission device, wherein the rotary furnace comprises a furnace body, slag holes, a smoke outlet, a copper matte inlet and a copper discharging hole, a furnace space is arranged in the furnace body, the smoke outlet is positioned at the upper part of the furnace body and is communicated with the furnace space, the copper matte inlet and the copper discharging hole are respectively positioned at a first end and a second end of the furnace body in the length direction, the slag holes are positioned at the first end and the second end of the furnace body, the slag holes of the copper discharging hole and the second end are respectively positioned at two sides of the carrier rollers, two carrier rollers are connected with the furnace body, a group of oxygen lances are arranged between the two carrier rollers and enter the furnace space, and the transmission device is positioned below the furnace body and is connected with the furnace body in a transmission mode.

The bottom blowing refining furnace for improving the quality of anode copper has the advantages of high slag discharging speed and less slag storage.

In some embodiments, the charging port and the smoke outlet are arranged at the top of the furnace body, and the copper matte inlet is positioned at the top of the furnace body or at the center position of the end wall of the first end of the furnace body and above in the vertical direction.

In some embodiments, the feed inlet and the outlet are combined into one outlet.

In some embodiments, the fume outlet is located at one end of the copper matte inlet in the horizontal direction and the fume outlet is located on a wall of the upper part of the furnace body near the first end in the vertical direction.

In some embodiments, the lance and the tap hole are disposed on the same side of the furnace body in a width direction of the rotary kiln.

In some embodiments, the heights of the two slag outlets at the two ends of the furnace body are the same, and the sizes and structures of the slag outlets are the same.

In some embodiments, the oxygen lances are symmetrically disposed on two sides of the furnace body along a length direction of the furnace body.

In some embodiments, the furnace body rotates in a clockwise direction to expose the oxygen lance to the liquid surface and the copper discharge port is positioned above the liquid surface.

In some embodiments, the oxygen lance has an included angle of 0-45 degrees with the vertical centerline of the furnace body.

In some embodiments, the copper tap hole is located at a position higher than the slag hole at the second end of the furnace body in the height direction.

Drawings

Fig. 1 is a schematic structural diagram of a bottom-blowing refining furnace for improving the quality of anode copper according to an embodiment of the utility model.

Fig. 2 is a side view of a bottom-blowing refining furnace for improving anode copper quality in accordance with an embodiment of the utility model.

Reference numerals: 1. a furnace body; 2. a slag outlet; 3. copper matte inlet; 4. a copper discharge port; 5. an oxygen lance; 6. a feed inlet; 7. a smoke outlet; 8. a carrier roller; 9. a transmission device.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

According to the bottom blowing refining furnace for improving the quality of anode copper, as shown in fig. 1 and 2, the bottom blowing refining furnace for improving the quality of anode copper comprises a rotary furnace, carrier rollers 8 and a transmission device 9, wherein the rotary furnace comprises a furnace body 1, a slag hole 2, a smoke outlet 7, a copper matte inlet 3 and a copper discharge hole 4, a furnace space is arranged in the furnace body 1, the smoke outlet 7 is positioned at the upper part of the furnace body 1 and is communicated with the furnace space, the copper matte inlet 3 and the copper discharge hole 4 are respectively positioned at a first end and a second end of the furnace body 1 in the length direction, the slag hole 2 is positioned at the first end and the second end of the furnace body 1, the slag hole 2 of the copper discharge hole 4 and the slag hole 2 of the second end are respectively positioned at two sides of the furnace body 1, the two carrier rollers 8 are connected with the furnace body 1, a group of oxygen guns 5 are arranged between the two carrier rollers 8, the oxygen guns 5 enter the furnace space, the transmission device 9 is positioned below the furnace body 1 and is in transmission connection with the furnace body 1, and the transmission device 9 comprises a speed reducer, a variable frequency motor and the like. Slag holes 2 are formed in two ends of the furnace body 1, slag can be discharged to two ends simultaneously, the slag discharging speed is high, the problem that the slag on one side of the furnace body 1 is difficult to move to the slag holes 2 on the other side to discharge due to the fact that the oxygen lance 5 in the middle of the furnace body 1 agitates gas is avoided, the influence of slag storage on the quality of anode copper is avoided, and the quality of anode copper is improved.

In some embodiments, the charging port 6 and the smoke outlet 7 are arranged at the top of the furnace body 1, and the copper matte inlet 3 is arranged at the top of the furnace body 1 or at the center position of the first end wall of the furnace body 1 and above in the vertical direction.

Specifically, the copper matte inlet 3 is positioned at the top of the furnace body 1 or at the middle upper part of one end of the furnace body 1, so that the hot copper matte is conveniently fed into the hearth space of the furnace body 1.

In some embodiments, the feed inlet 6 merges with the smoke outlet 7 as one outlet. The combination of the feed inlet 6 and the smoke outlet 7 to form a hole can reduce the number of holes on the furnace body 1, the bonding of melt splash to the feed inlet 6 caused by the gas of the spray gun is avoided, the independent feed inlet 6 is canceled, and cold copper materials such as anode scrap and flux are added into the furnace from the smoke outlet 7 to be more beneficial to the reaction with hot copper matte.

In some embodiments, the flue gas outlet 7 is located at one end of the copper matte inlet 3 in the horizontal direction and the flue gas outlet 7 is located in the vertical direction on a wall of the upper part of the furnace body 1 near the first end of the furnace body 1.

Specifically, the position that outlet flue 7 is located copper matte import 3 one end, and outlet flue 7 is located the upper portion of furnace body 1 and is convenient for fume emission, reduces the petticoat pipe design degree of difficulty, conveniently arranges the petticoat pipe.

In some embodiments, the lance 5 and the tap hole 2 are provided on the same side of the vessel 1 in the width direction of the rotary kiln.

Specifically, in the width direction of the rotary furnace, namely in the cross section view of the rotary furnace, the oxygen lance 5 and the slag outlet 2 are arranged on the same side of the furnace body 1, and slag discharge can be realized by rotating the furnace body 1 while supplying air, so that the requirements of slag discharge in different liquid level heights in the furnace are met.

In some embodiments, the heights of the two slag outlets 2 at the two ends of the furnace body 1 are the same, and the sizes and structures of the slag outlets 2 are the same.

Specifically, the slag discharging speed and the slag discharging amount at two ends are different when the slag discharging holes at two ends of the furnace body 1 are the same in height and the slag discharging speed at two ends of the furnace body 1 are prevented from being different when the slag discharging speed of the furnace body 1 is rotated, and the slag discharging speed of the slag discharging holes at two ends 2 is equal due to the fact that the slag discharging speed of the slag discharging holes at two ends is equal in size and structure.

In some embodiments, the oxygen lances 5 are symmetrically disposed on both sides of the furnace body 1 along the length direction of the furnace body 1.

Specifically, a plurality of oxygen guns 5 are arranged symmetrically in the length direction of the furnace body 1, the oxygen guns 5 are arranged symmetrically, the melt can be stirred better, the ventilation uniformity is improved, the oxygen guns 5 are uniformly distributed in the length direction between two carrier rollers 8, the ventilation uniformity is improved, and the stirring effect on the melt is improved.

In some embodiments, the furnace body 1 rotates in a clockwise direction so that the copper discharge port 4 is positioned above the liquid surface after the oxygen lance 5 is exposed to the liquid surface.

Specifically, the copper discharge port 4 is located above the liquid level after the oxygen lance 5 is exposed out of the liquid level, the copper discharge port 4 can be prevented from being leaked, the copper discharge port 4 is not required to be plugged by using refractory clay, the furnace body 1 can be continuously rotated during the operation of pouring anode copper, the process of plugging the copper discharge port 4 is reduced, and the working efficiency is improved.

In some embodiments, the oxygen lance 5 is angled from 0 to 45 degrees from the vertical centerline of the furnace body 1.

Specifically, when the included angle between the oxygen lance 5 and the vertical center line of the furnace body 1 is in the range, the stirring effect of the oxygen lance 5 on the melt in the furnace body 1 is most suitable, and when the oxygen lance 5 is rotated out of the melt level, the melt level is still lower than the copper discharge port 4.

In some embodiments, the copper tap hole 4 is located at a height higher than the tap hole 2 at the second end of the furnace body 1.

Specifically, the height of the copper discharge opening 4 is higher than the height of the slag outlet 2 at the second end of the furnace body 1, when the furnace body 1 rotates clockwise to discharge copper, the slag outlet 2 rotates clockwise and then is higher than the liquid level of the melt, so that leakage is avoided, and slag discharge is not hindered by the fact that the height of the copper discharge opening 4 is higher than the slag outlet 2 in the slag discharge process when slag discharge is needed.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A bottom blowing refining furnace for improving the quality of anode copper, which is characterized by comprising:

The rotary furnace comprises a furnace body, a slag hole, a smoke outlet, a copper matte inlet and a copper discharge hole, wherein a furnace space is formed in the furnace body, the smoke outlet is positioned at the upper part of the furnace body and is communicated with the furnace space, the copper matte inlet and the copper discharge hole are respectively positioned at a first end and a second end of the furnace body in the length direction, the slag hole is positioned at the first end and the second end of the furnace body, and the slag hole of the copper discharge hole and the slag hole of the second end of the furnace body are respectively positioned at two sides of the furnace body;

The two carrier rollers are connected with the furnace body, a group of oxygen guns are arranged between the two carrier rollers, and the oxygen guns enter the furnace space;

the transmission device is positioned below the furnace body and is in transmission connection with the furnace body.

2. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 1, wherein the rotary furnace further comprises a feed port, the feed port and the flue gas outlet are arranged at the top of the furnace body, and the copper matte inlet is positioned at the top of the furnace body or at the center position of the end wall of the first end of the furnace body and above in the vertical direction.

3. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 2, wherein the feed inlet and the smoke outlet are combined into one outlet.

4. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 1, wherein the smoke outlet is positioned at one end of the copper matte inlet in the horizontal direction, and the smoke outlet is positioned on a wall of the upper part of the furnace body near the first end in the vertical direction.

5. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 1, wherein the oxygen lance and the slag hole are provided on the same side of the furnace body in the width direction of the rotary furnace.

6. The bottom blowing refining furnace for improving the quality of anode copper according to claim 1, wherein the heights of two slag holes at two ends of the furnace body are the same, and the size and the structure of the slag holes are the same.

7. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 1, wherein the oxygen lances are symmetrically arranged at two sides of the furnace body along the length direction of the furnace body.

8. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 1, wherein the copper discharge port is positioned above the liquid surface after the oxygen lance is exposed to the liquid surface by rotating the furnace body in a clockwise direction.

9. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 8, wherein an included angle between the oxygen lance and a vertical center line of the furnace body is 0-45 degrees.

10. The bottom-blowing refining furnace for improving the quality of anode copper according to claim 8, wherein the position of the copper discharge opening in the height direction is higher than the position of the slag outlet at the second end of the furnace body in the height direction.