KR20010002788A - device for distributing blister in conventing furnace - Google Patents

Abstract

PURPOSE: An apparatus for distributing blisters within a converting furnace is provided for changing flow of blister without closing or opening outlet of a switch launder. CONSTITUTION: A distribution apparatus of blisters in a converting furnace (1) includes a first blister launder (2), a second blister launder (5,6) attached to the first launder at its both ends, and a first and second purifying furnaces. The switching launder (7) selectively provide blisters passed through the first blister launder. The switching launder is biasing by a rotation means toward the second blister launder. The rotation means has a supporting shaft (9a, 9b) fixed at both ends of the switching launder, a forward and backward supporting stand (10a, 10b), an arm (11) and a driving cylinder (12) to push and pull the arm.

Description

Device for distributing blister in conventing furnace

The present invention relates to a launder for guiding the flow of a blister during continuous smelting of copper, and more particularly, to a blister in which a copper content of more than 98% is purified in a converting furnace. A blister dispensing apparatus in a conversion furnace that changes the flow of blisters when feeding them to two refinery furnaces.

In general, when looking at the process of dry copper smelting, when a matte having a copper content of 30 to 55% is obtained through a melting furnace and a cleaning furnace, the mat is converted to a conversion furnace. The refiner is refined to be a blister having a copper content of 98% or more, and the blister is flowed to the refinery to obtain a pure copper having a copper content of 99.99%.

The passage through which the blister in the conversion furnace flows to the refinery furnace is called blister launder, and the blister loader is alternately shifting the blister in the conversion furnace to the two refinery furnaces for about 12 hours. Since it flows in the middle part, the middle part has a shape of approximately "Y" branched into branches.

The branching point of the blister flowing along the blister loader is called a switching launder, and the blister loader and the switching loader are downward from the conversion road to the refinery so that the blister flows easily by its own weight. It is inclined.

Conventionally, in order to flow the blister purified in the conversion furnace to the refinery side of one side for the final purification, the outlet of the branched switching loader is blocked with clay to determine the flow direction of the blister.

At this time, the clay closing one outlet of the switching loader should be stacked to maintain the height and airtightness so that the blister does not overflow or leak.

As such, when the passage through one side of the refinery is closed and the blister in the conversion furnace is supplied to the other side of the refinery, the outlet of the switching loader is closed when the blister needs to flow to the side of the refinery where the passage is closed. The existing clay is cut off with an oxygen pipe burner and the other exit of the switching loader, which has been opened, must be closed with clay as described above to change the blister flow.

However, since the conventional blister flow is determined by the closing and opening of the passage using clay, there are the following problems.

First, since a series of operations to open and close the exit of the switching loader are performed in a state where a high temperature blister of 1000 ° C or more flows, workers are exposed to high heat, and they are easily fatigued and inadvertently cause a safety accident such as a burn. have.

Second, every time the flow of the blister was switched, the clay which had closed the one side passage was cut off and the other side had to be closed, so it was impossible to supply the blister quickly.

Third, when cutting clay with an oxygen pipe burner, the stopper brick, which is the connection to the blister loader, is fused together, so the stopper brick needs to be replaced at every regular maintenance of the blister loader. The stopper brick took about 24 hours to be replaced and dried, which resulted in a decrease in productivity because other operations were completed early and the operation was not resumed.

Fourth, if the stopper brick is damaged before the regular maintenance work, the stopper brick must be replaced while the plant is in operation.

The present invention has been made to solve such a problem in the prior art, the object of the present invention is to be able to switch the flow of the blister without opening and closing the outlet of the switching loader.

According to an aspect of the present invention for achieving the above object, the first blister loader is inclined downwardly on the upper side connected to the conversion path, and is installed at an inclined downward position below the first blister loader, the end is first The second blister loader connected to the 1st and 2nd purification furnaces and the first and second blister loaders are rotatably installed, and the inside of the first blister loader is formed with an approximately "Y" shaped loader. A switching furnace comprising: a switching loader for selectively supplying a blister flowing through the first and second blister loaders; and a switching loader rotating means for selectively tilting the switching loaders to two second blister loaders. An internal blister dispensing apparatus is provided.

1 is a plan view showing a converter and a refinery furnace equipped with the present invention

Figure 2 is a perspective view showing the main part of the present invention

3 is a plan view of FIG.

4 is a side view of FIG. 3

5a and 5b is an operating state diagram of the present invention,

5A is a state diagram in which the switching loaders remain parallel

5b is a state diagram in which the switching loader is inclined to one side

6 is an exploded perspective view showing an enlarged portion "A" of FIG. 5A;

Explanation of symbols for main parts of the drawings

1: Switchover 2: First Blister Lauder

3: first purification furnace 4: second purification furnace

5, 6: 2nd blister 7: switching loader

9a, 9b: support shaft 10a, 10b: front, rear support

11: Arm 11a: Cutout

12: drive cylinder 14: separation prevention piece

Hereinafter, the present invention will be described in more detail with reference to FIGS. 1 to 6 as an embodiment.

1 is a plan view showing a conversion furnace and a purification furnace equipped with the present invention, Figure 2 is a perspective view showing the main portion of the present invention and Figure 4 is a side view of Figure 3, the present invention is a first blister in the conversion furnace (1) The second blister loaders 5 and 6, which are connected to the first and second refining furnaces 3 and 4, are connected to the lower portion of the first blister loader and are inclined downwardly. It is.

And at the overlapping portion of the first and second blister loaders 2, 5 and 6, a "Y" -shaped loader 7a is formed to remove the blister flowing through the first blister loader 2 Switching loaders 7 for selectively supplying the first and second blister loaders 5 and 6 are rotatably installed, and the switching loaders 7 are two second blister loaders by the switching loader rotating means. (5) It is inclined selectively to (6) side.

The switching loader 7 stacks bricks on the iron plate 8 of a carbon steel sheet having a predetermined thickness (about 30 mm) so as not to be spoiled from a high temperature blister to form a loader 7a and an outlet 7b and 7c. So it is done.

In the embodiment of the present invention, the switching rod pivot means includes support shafts 9a and 9b fixed to both sides of the switching loader 7, and the support shafts are mounted on the support shafts to support the support shafts. 10a, 10b, an arm 11 fixed to one end of the support shaft 9a, and a drive cylinder 12 connected to the other end of the arm to push the arm within a predetermined angle range. .

As shown in FIG. 6, a bearing 13 is installed at the rod end of the driving cylinder 12, and the arm 11 has a cutout portion 11a having one side open to be fitted to the bearing.

This is to enable the switching loader 7 mounted on the front and rear supports 10a and 10b to be lifted to the upper side using a hoist or the like without a separate tool so as to be replaced more quickly.

As described above, the arm 11 is wider than the width of the cutout portion 11a at one side of the bearing 13 as shown in FIG. 6 so that the arm 11 is not separated from the bearing 13 in the state in which the switching loader 7 is installed. An arm detachment prevention piece 14 having a width is fixed.

Further, unlike the embodiment of the present invention, the switching loader rotating means may rotate the support shafts 9a and 9b fixed to the switching loader 7 at a predetermined angle by using a reducer and a chain. It is not limited.

However, in this case, when the switching loader 7 is replaced, the chain must be separated from the sprocket fixed to one end of the support shafts 9a and 9b so that the switching loader 7 can be separated using a hoist or the like. It takes longer to replace the switching loader 7 but is feasible.

Meanwhile, an auxiliary support 15 is installed between the switching loader 7 and the front support 10a so that the support shaft 9a is placed on the auxiliary support 15.

This is because the distance between the switching loader 7 and the front support 10a has to be set far apart due to the interference by the second blister loaders 5 and 6, and thus the length of the support shaft 9a becomes long. Accordingly, the length of the support shaft 9a is to prevent the deformation of the support shaft 9a by the weight of the switching loader 7 and the blister.

Referring to the operation of the present invention configured as described above is as follows.

First, when the blister in the switching furnace 1 is not flown to the first and second refinery furnaces 3 and 4, the switching provided at the intersection of the first and second blisters 2, 5 and 6 The loader 7 is kept horizontal as shown in FIG. 5A.

In such a state, in order to purify the copper (Cu) while flowing the blister in the conversion furnace (1) to the first purification furnace (3) and charging, oxidizing, reducing, and casting the respective operation units, the driving cylinder 12 ), The arm 11 must be pulled out.

To this end, when the rod of the drive cylinder 12 is pulled out, a bearing 13 is installed at the end of the rod, and a cutout portion 11a of the arm 11 is fitted to the bearing so that the front and rear supports 10a ( Since the support shafts 9a and 9b mounted on 10b are rotated counterclockwise as shown in Fig. 5A, the switching loader 7 having the support shaft fixed therein is the first refiner 3 as shown by the solid line in Fig. 5B. Will be tilted to the side.

In this state, when the blister in the switching path 1 flows to the first blister loader 2, the first blister loader is installed to be inclined downward so that it is free to the loader 7a side of the switching loader 7 by its own weight. Falls.

As a result, the free fall blister has a first purification path along the second blister loader 5 through the outlet 7b located below the switching loader 7 since the switching loader 7 is inclined to one side. It flows to (3) side.

As described above, the blister is heated by using the high pressure oxygen burner 16 so that the blister which free-falls to the second blister loader 5 side through the outlet 7b of the switching loader 7 is not cooled. .

The blister in the conversion furnace 1 is sent to the first purification furnace 3 side by the operation described above, and then the blister in the conversion furnace is transferred to the second purification furnace through the second blister loader 6 on the other side. In order to flow to the side (4), the drive cylinder 12 must be re-driven to advance the pulled rod.

Accordingly, as described above, the support shaft 9a fixed to the arm 11 is mounted on the front and rear supports 10a and 10b so that the switching loader 7 rotates as indicated by the dashed-dotted line in FIG. 5B. As a result, the outlet 7c of the switching loader 7 is inclined toward the second blister loader 6 connected to the second refinery 4 so that it flows along the first blister loader 2 from the switching furnace 1. The blister coming out flows to the second purification furnace side.

That is, the switching loader 7 is inclined selectively toward the second blister loader 5 and 6 around the support shafts 9a and 9b according to the driving of the drive cylinder 12, so that no additional manipulation is required. You can control the flow of blisters.

In accordance with the driving of the driving cylinder 12 as described above, when the switching loader 7 is controlled to control the flow of the blister to supply the blister to the first and second purification furnaces 3 and 4, the switching loader ( Since the blisters falling through the outlets 7b and 7c of 7) are scattered at the same time and the temperature of the blisters does not fall, the iron plate 8 is gradually melted by the heat heated by the high-pressure oxygen burner 16 so that the switching is performed at regular intervals. The loader (7) must be replaced.

As described above, when the switching loader 7 for distributing the blister is to be replaced, the switching loader 7 which is inclined to one side is kept horizontal as shown in FIG. 5A.

When the switching loader 7 maintains the horizontal state, the cutout portion 11a formed at the end of the arm 11 maintains the vertical state, so that the switching loader 7 uses a hoist (not shown). By lifting upwards, it is possible to remove the damaged switching loader 7 and to install a new switching loader without a separate operation.

Accordingly, even when the switching loader is replaced due to an accident during the use of the switching loader 7, it is possible to quickly replace the operation.

As described above, the present invention has the following advantages over the conventional switching loader.

First, the flow direction of the blister is determined by simply turning the switching loader clockwise or counterclockwise by the operation of the driving cylinder, so that it is possible to supply the blister to the refinery side quickly and to open and close the outlet of the switching loader. This prevents the occurrence of a safety accident due to the opening and closing of the switching loader.

Second, even if the clay located at the exit of the switching loader is not cut and removed, the flow of the blister is switched, so that the stopper brick is not damaged, and thus regular maintenance work can be performed quickly, thereby quickly resuming operation. Productivity will be improved.

Third, even if the stopper brick is damaged before the regular maintenance work, it is possible to quickly replace the switching loader mounted on the front and rear supports with a new switching loader using a hoist, so there is no need to stop the operation.

Claims (5)

A first blister loader connected to a conversion path and positioned downward on an upper side, a second blister loader positioned on a lower portion of the first blister loader and inclined downward and having an end connected to the first and second refineries; The first and second blister loaders are rotatably installed in the overlapping portions, and the inside of the first and second blister loaders is formed with an approximately "Y" shaped loader, which flows through the first and second blister loaders. And a switching loader rotating means for selectively tilting the switching loader to two second blister loaders. The method of claim 1, The switching loader rotating means A support shaft fixed to both sides of the switching loader, the front and rear supports for mounting the support shaft to support the support shaft, an arm fixed to one end of the support shaft, and connected to the other end of the arm to push the arm. A blister dispensing device in a conversion furnace, characterized in that consisting of a driving cylinder for giving or pulling. The method of claim 2, A blister dispensing device in a conversion furnace, characterized in that a bearing is installed at a rod end of a drive cylinder and the arm has a cutout portion open at one side to be fitted to the bearing. The method of claim 3, wherein An arm departure preventing piece having a width wider than the width of the cutout portion is fixed to one side of the bearing. The method of claim 2, A blister dispensing device in a conversion furnace, characterized in that an auxiliary support is installed between the switching loader and the front support.