JP4856112B2 - Water-cooling jacket take-out device for uptake part of flash furnace - Google Patents

Description

  The present invention relates to an apparatus for taking out a water cooling jacket provided at a horizontal connection portion with a waste heat boiler on an exhaust gas outlet side in an uptake of a flash smelting furnace.

  Conventionally, there is a flash smelting furnace as one of the non-ferrous metal smelting furnaces using sulfide concentrate. As shown in FIG. 6, the flash smelting furnace 100 includes a reaction shaft 101, a setter 102, and an uptake 103, and a concentrate burner 105 is installed on the ceiling 104 of the reaction shaft 101.

  The concentrate is blown from the concentrate burner 105 into the furnace. Although the flash smelting furnace 100 uses the heat of oxidation reaction of concentrate, if the amount of heat is insufficient with only the heat of oxidation reaction, it may be supplemented with heavy oil or the like from the concentrate burner 105.

  The exhaust gas generated in the setter 102 is heat-recovered by the waste heat boiler 107 from the uptake 103 through the horizontal connecting portion 106 and then sent to the sulfuric acid factory to be a raw material for sulfuric acid.

  The exhaust gas generated in the setter 102 contains nitrogen gas, sulfurous acid gas, and carbon dioxide as the main components and contains a large amount of dust. When this dust comes into contact with a water-cooled jacket installed on the uptake 103 or the like, solid matter called fixed smoke ash (hereinafter referred to as “beko”) containing copper sulfide, iron sulfide, iron oxide, ferrite, etc. as a main component is on the surface. It is known that it adheres to the water and grows up with the operation to block the flue, and the lump is peeled off and causes trouble.

  In particular, the bottom surface 106a of the horizontal connecting portion 106 that connects the uptake 103 and the waste heat boiler 107 has a large amount of accumulation because there is no natural fall due to its own weight.

  In addition, when the bevel of the horizontal connecting portion 106 falls to the uptake 103 side, there is no problem because it is remelted in the molten slag. On the other hand, when it falls to the waste heat boiler 107 side, it can be discharged to the outside by a dust discharge chain conveyor 108 or the like provided at the bottom, but the capacity of the chain conveyor 108 is exceeded. When a large lump falls to the boiler 107 side, it becomes extremely difficult to discharge it.

  Therefore, in Patent Document 1, as shown in FIGS. 7 and 8, the water cooling jacket 1 is provided in the horizontal connecting portion 106. The water cooling jacket 1 includes a horizontal jacket 1A disposed on the lower side surface 106a of the horizontal connecting portion and a triangular jacket 1B provided at an end adjacent to the waste heat boiler 107 in a direction perpendicular to the gas flow. The horizontal jacket 1A described in Patent Document 1 has a top surface that is gently inclined toward the uptake, and the triangular jacket 1B has a slope B1 where the uptake 103 side and the waste heat boiler 107 side are steep. , B2.

The water cooling jacket 1 for the horizontal connecting part described in the above-mentioned Patent Document 1 has a large portion of the beco that adheres to and grows on the surface, and naturally falls to the uptake 103 side, greatly reducing troubles caused by the beco drop in the waste heat boiler 107. Can be made.
Japanese Patent Laid-Open No. 11-337271

  However, according to experiments and research conducted by the present inventors, it has been found that even with the water-cooled jacket of Patent Document 1, it is not possible to completely eliminate the bevel attached to the surface of the water-cooled jacket.

  In particular, the water-cooled jacket installed near the uptake at the both ends of the triangular jacket at the horizontal connecting part is attached with a beco. Therefore, an opening with a door is provided in a part of the flue, and the opening Therefore, it is necessary to carry out the bevel removal work with an Ayon breaker or the like.

  In order to efficiently perform the above-described removal of the bevel, it is necessary to move at least the water-cooled jacket from the flash furnace flue (furnace body) in a high temperature environment to a place far away. It's not easy. Therefore, there has been a demand for the development of means that can easily carry the water-cooled jacket and remove the bevel and improve the working efficiency.

  The object of the present invention is to easily move at least a part of the water cooling jacket installed in the horizontal connection part connecting the uptake of the flash smelting furnace and the waste heat boiler to a position away from the furnace body, and perform the adhesion bevel removal work. An object of the present invention is to provide a water cooling jacket take-out device for an uptake part of a flash smelting furnace that can be easily performed.

The above object is achieved by the apparatus for taking out the water cooling jacket of the uptake portion of the flash smelting furnace according to the present invention. In summary, the present invention provides an uptake for taking out at least a part of the water cooling jacket installed in the horizontal connection portion of the flue connecting the uptake of the flash furnace and the waste heat boiler to the outside of the furnace. A partial water cooling jacket take-out device,
A vertical support column rotatably installed outside the flash furnace, and a joint arm means extending horizontally with respect to the vertical support column and swingable in a horizontal direction around the vertical support column; With
The articulated arm means has at least one end fixedly attached to the vertical support, and is pivotable in the horizontal direction by rotation of the vertical support, and a pivot attached to the other end of the first arm. A second arm having one end rotatably attached and swingable in a horizontal direction,
At least a part of the water cooling jacket is attached, and the other end of the second arm is rotatably connected to a lid member that opens and closes an opening formed in the wall of the flash furnace flue. And
By driving the vertical support and swinging the joint arm means in the horizontal direction, the lid member and the water-cooling jacket integrally attached to the lid member are connected to the opening of the flash smelter flue. Through the flash furnace,
This is an apparatus for taking out a water cooling jacket of an uptake part of a flash smelting furnace.

  According to an embodiment of the present invention, the water-cooling jacket includes a horizontal jacket disposed on the lower side surface of the horizontal coupling portion, a triangular jacket installed in a direction perpendicular to the gas flow at an end adjacent to the waste heat boiler, And end jackets installed closer to the uptake at both ends of the triangular jacket.

  According to another embodiment of the present invention, the end jacket disposed adjacent to the lid member is integrally attached to the lid member.

  According to the present invention, at least a part of the water-cooling jacket installed in the horizontal connecting portion connecting the uptake of the flash smelting furnace and the waste heat boiler is easily moved to a position away from the furnace body, and the attached bevel removal work is performed. It can be done easily. In particular, it is possible to easily move the end jackets installed close to the uptake at both ends of the triangular jacket, and the attached bevels can be removed at the horizontal connection part, thereby improving work efficiency. it can.

  Hereinafter, the uptake part water cooling jacket take-out device of the flash smelting furnace according to the present invention will be described in more detail with reference to the drawings.

Example 1
1 to 5 show a schematic configuration of an embodiment of a water cooling jacket take-out device for an uptake part of a flash smelting furnace according to the present invention. The structure of the flash smelting furnace is the same as that of the flash smelting furnace 6 described above with reference to FIG.

  Also in the flash smelting furnace 100 of the present embodiment, as shown in FIG. 3 to FIG. 5, the horizontal connecting portion 106 that connects the uptake 103 and the waste heat boiler 107, as described in Patent Document 1, A water cooling jacket 1 is arranged.

  First, the configuration of the water cooling jacket 1 will be described.

  In this embodiment, the water cooling jacket 1 includes a horizontal jacket 1A disposed on the lower side surface 106a of the horizontal connection portion, and a triangular jacket 1B installed at an end adjacent to the waste heat boiler 107 in a direction perpendicular to the gas flow, It is comprised by the edge part jacket 1C installed near the uptake 103 at the both ends of the triangular jacket 1B. Of course, the structure of the water cooling jacket 1 is not limited to this.

  According to the present embodiment, the end jacket 1C is slid on the horizontal jacket 1A on the wall (side wall) of the flash smelter flue (furnace) corresponding to the position where the end jacket 1C is installed. An opening 110 is formed so that it can move in and out in the horizontal direction. That is, in this embodiment, at least the end jacket 1 </ b> C can be attached to and detached from the furnace body through the opening 110.

  As shown in FIGS. 3 to 5, the end jacket 1 </ b> C has a steel box shape, and is a water-cooled jacket in which a partition plate or the like is appropriately provided and the cooling water pipe 2 is connected. Further, the top surface 1C1 is a steeply inclined surface toward the uptake 103 as indicated by an arrow A (FIGS. 3 and 4). The inclination angle α of the top surface is desirably as steep as possible. In this embodiment, the inclination angle α is 44 °. Since the end jacket 1C has such a steeply inclined top surface 1C1, the bevel attached to the surface of the end jacket 1C can be dropped to the uptake side by gravity.

  On the other hand, the triangular jacket 1B has steep slopes 1B1 and 1B2 as shown by arrows B1 and B2 (FIGS. 3 and 5) near the uptake and the waste heat boiler.

  The triangular jacket 1B is also made of a steel box and is a water-cooled jacket to which the cooling water pipe 2 is connected. The section is substantially triangular and spans the width of the flue in the diameter direction of the uptake 103. It extends between both wall bodies (both side walls) of the flash furnace flue section (furnace body). As described above, the triangular jacket 1B has a steep slope near the uptake and the waste heat boiler. Usually, the angle β of the inclined surface is 30 ° to 60 °. In this embodiment, the angle is 45 °.

  With this configuration, the slant 1B2 near the waste heat boiler of the triangular jacket 1B does not have any adhesion and growth of the bevel, and even if it grows, it falls by its own weight. Therefore, maintenance is unnecessary. On the other hand, the grown beco attached to the slope 1B1 near the uptake 103 falls to the uptake side even if it grows up.

  In the water-cooling jacket 1 (1A, 1B, 1C) having the above-described configuration, as described above, according to the results of the research experiments by the present inventors, the horizontal connection portion 106 is particularly positioned at both ends of the triangular jacket 1B. It was found that the velvet adheres to the end jacket 1C installed closer to the uptake. Further, it was found that it is preferable to perform scraping from time to time because the bevel adhered to the slope is very easy to remove.

  Therefore, according to the present embodiment, an uptake portion water cooling jacket take-out device (hereinafter simply referred to as “water-cooled jacket take-out device”) outside the flash furnace 100 and adjacent to the flash furnace wall 200. In particular, at least a part of the water-cooling jacket 1 of the horizontal connecting portion 106 can be easily taken out of the furnace by machine operation instead of manual operation. In this embodiment, the end jacket 1C is taken out.

  With reference to FIG.1 and FIG.2, the water-cooling jacket taking-out apparatus 10 of a present Example is demonstrated.

  1 and 2, the water cooling jacket take-out device 10 is provided on the front side of the flash smelting furnace 100, but is provided not only on the front side of the flash smelting furnace 100 but also on the back side in the same manner as the front side. be able to.

  In the present embodiment, the water-cooled jacket take-out device 10 is disposed vertically on the outside of the flash smelting furnace 100 between the apparatus frame 200 and, in the present embodiment, between the machine base 201 and the ceiling frame 202. A support 11 is provided. The vertical strut 11 is supported at its upper and lower ends on a machine base 201 and a ceiling frame body 202 so as to be rotatable by support means 12 and 13 respectively. In this embodiment, the vertical support 11 is driven to rotate when operated by an operator. However, the vertical support 11 can also be driven to rotate by providing a driving means such as an electric motor.

  Joint arm means 15 is provided that extends in the horizontal direction with respect to the vertical column 11 and is swingable in the horizontal direction as a whole around the vertical column 11.

  The joint arm means 15 is composed of a plurality of arms, and includes a first arm 16 and a second arm 17 in this embodiment. One end 16 a of the first arm 16 is fixedly attached to the vertical column 11, and can swing in the horizontal direction by the rotation of the vertical column 11. One end 17a of the second arm 17 is rotatably attached to the other end 16b of the first arm 16 by a pivot 18 so that the second arm 17 can swing in the horizontal direction. As described above, more arms may be provided with the same configuration as necessary.

  As described above, the flash smelting furnace 100 of the present embodiment includes the opening 110 in the flash smelter flue wall corresponding to the position where the end jacket 1C is installed, and therefore the end jacket 1C. Can slide in and out in the horizontal direction through the opening 110 by sliding on the horizontal jacket 1A.

  The opening 110 can be opened and closed by the lid member 120. Further, according to the present embodiment, the lid member 120 is integrally attached with at least a part of the water cooling jacket 1, and in the present embodiment, the end jacket 1 </ b> C disposed adjacent to the lid member 120. Therefore, the lid member 120 can also be an integral member constituting the side surface of the end jacket 1C.

  The lid member 120 is rotatably attached to the second arm 17 by a pivot 19 attached to the other end 17 b of the second arm 17 via a support member 121 provided on the lid member 120. Therefore, by swinging the second arm 17, the lid member 120 and the end jacket 1 </ b> C integrally attached to the lid member 120 are attached to the vertical wall body 200 of the flash smelting furnace flue (furnace body). It is pulled out from the formed opening 110 while maintaining the horizontal state.

  That is, by manually driving or driving the drive motor, the vertical support 11 rotates, and the joint arm means 15 including the first arm 16 and the second arm 17 swings in the horizontal direction. As a result, the joint arm means 15 moves from the first position (closed position P1) where the lid member 120 closes the vertical wall body opening 110 to the third position (work position) via the second position (P2). Move to P3). As a result, the lid member 120 connected to the second arm 17 and the end jacket 1C integrally attached to the lid member 120 are pulled out from the vertical wall body opening 110 and separated from the furnace body 200. Moved to the working position P3. Usually, the first arm 16 rotates within a range of 90 ° to 180 °, and the second arm 17 can swing within a range of 270 ° with respect to the first arm. Accordingly, the lid member 120 and the end jacket 1C integrally attached to the lid member 120 are moved from the vertical wall body opening (that is, the furnace body) 110 to the working position P3 rotated by about 180 °. Therefore, a bevel removal operation is performed.

  The bevel attached to the end jacket 1C is peeled off when the lid member 120 is moved from the opening 110, and remains as it is attached to the horizontal jacket 1A. Therefore, it can be easily dropped to the uptake 103.

  Moreover, when adhering to the triangular jacket 1B of the uptake 103 of the flash smelting furnace 100 and the periphery thereof, it can be easily removed by the eyelon breaker through the opening 110. A bevel with a thickness of 50 mm to 100 mm can be easily removed.

  As described above, the end jacket 1C and, as necessary, the removal of the triangular jacket 1B of the uptake 103 of the flash smelting furnace 100 and the bevel adhered to the periphery thereof are completed manually or by a drive motor. , The vertical column 11 and the joint arm means 15 are swung in the direction opposite to the above, and the lid member 120 and the end jacket 1C are inserted into the horizontal connecting portion 106 from the vertical wall body opening 110. Install in a predetermined position.

  According to the present embodiment, at least a part of the water cooling jacket 1 installed in the horizontal connecting portion 106 that connects the uptake 103 of the flash smelting furnace 100 and the waste heat boiler 107 is easily moved to a position away from the furnace body 200. Therefore, it is possible to easily remove the sticky bevel. In particular, the end jacket 1C installed close to the uptake at both ends of the triangular jacket 1B where the bevel adhesion is remarkable at the horizontal connecting portion 106 is easily moved to a working position away from the furnace body 200 and attached The working efficiency can be improved.

  According to the water-cooling jacket take-out apparatus 1 of this embodiment, the apparatus is driven once or twice every 12 hours, and the bevel removal operation is completed in about 10 minutes, and the bevel removal operation is performed very efficiently. I was able to.

It is a cross-sectional view which shows schematic structure of one Example of the uptake part water cooling jacket taking-out apparatus of the flash smelting furnace which concerns on this invention. It is a front view which shows schematic structure of one Example of the uptake part water cooling jacket taking-out apparatus of the flash smelting furnace which concerns on this invention. It is a cross-sectional view of the uptake part and horizontal connection part explaining the arrangement | positioning relationship of a cover member, a horizontal jacket, a triangular jacket, and an end part jacket. It is AA sectional drawing of FIG. 3, and is a figure explaining the top surface of an edge part jacket. It is a front view of a flash smelter flue part explaining the arrangement relation of a horizontal jacket, a triangular jacket, an end jacket, and an opening formed in a vertical wall body of a flash smelter flue part. It is schematic structure sectional drawing of a flash smelting furnace. It is schematic structure sectional drawing explaining the uptake part water cooling jacket of a flash smelting furnace. It is schematic structure sectional drawing explaining the uptake part water cooling jacket of a flash smelting furnace.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water cooling jacket 1A Horizontal jacket 1B Triangle jacket 1C End jacket 10 Uptake part water cooling jacket taking-out apparatus 11 Vertical support | pillar 15 Joint arm means 16 1st arm 17 2nd arm 100 Flash furnace 103 Uptake 106 Horizontal connection part 107 Waste heat Boiler 110 Opening 120 Lid member

Claims (3)

An uptake unit water cooling jacket take-out device for taking out at least a part of the water cooling jacket installed in the horizontal connection part of the flue connecting the uptake of the flash furnace and the waste heat boiler to the outside of the furnace. ,
A vertical support column rotatably installed outside the flash furnace, and a joint arm means extending horizontally with respect to the vertical support column and swingable in a horizontal direction around the vertical support column; With
The articulated arm means has at least one end fixedly attached to the vertical support, and is pivotable in the horizontal direction by rotation of the vertical support, and a pivot attached to the other end of the first arm. A second arm having one end rotatably attached and swingable in a horizontal direction,
At least a part of the water cooling jacket is attached, and the other end of the second arm is rotatably connected to a lid member that opens and closes an opening formed in the wall of the flash furnace flue. And
By driving the vertical support and swinging the joint arm means in the horizontal direction, the lid member and the water-cooling jacket integrally attached to the lid member are connected to the opening of the flash smelter flue. Through the flash furnace,
An apparatus for taking out a water cooling jacket of an uptake part of a flash smelting furnace.   The water-cooling jacket includes a horizontal jacket disposed on the lower side surface of the horizontal connecting portion, a triangular jacket installed in a direction perpendicular to the gas flow at an end adjacent to the waste heat boiler, and an uptake at both ends of the triangular jacket. An up jacket portion water cooling jacket take-out device for a flash smelting furnace according to claim 1, further comprising an end jacket installed in the furnace.   3. The uptake portion water cooling jacket take-out apparatus for a flash smelting furnace according to claim 2, wherein the end jacket disposed adjacent to the lid member is integrally attached to the lid member.

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