JP3440957B2 - Water cooling jacket gutter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-cooled jacket gutter made of copper or a copper alloy for flowing a kava or a lump formed in a copper smelting process. [0002] Conventionally, copper smelting Kawa and Karami (hereinafter referred to as "melt") have been flowed using a gutter in which a carbon gutter made of calcined carbon is set in an iron casing. Due to the poor wettability between the melt and the carbon, it is relatively easy to separate the solidified solid from the carbon gutter after the flow of the melt while the carbon is fresh. However, due to the good thermal conductivity of carbon, the gutter becomes extremely hot during the flow of the melt, and the separation operation requires a lot of labor under high heat. [0003] Further, when the carbon becomes old, the surface becomes uneven due to the molten material, the separation becomes difficult, and the difficulty of the work is further increased. Further, as the carbon loss progresses, the carbon is exchanged. However, since the carbon is heavy, there is a risk that the operator may hurt his back. In recent years, as a countermeasure, a water cooling jacket gutter made of copper has been introduced instead of a carbon gutter. There are two main types of water-cooled jacket gutters. One is a cast jacket gutter that casts copper into a copper tube to secure a water channel, and the other is a hole drilling that drills a hole in a copper plate or copper ingot to form a water channel. It is a jacket gutter. [0005] The most important point of the water-cooled jacket gutter is how to protect the copper of the jacket body from being melted by the melt. The rolled material or the forged material has better cooling efficiency than the cast material, so that the jacket body has less melting, and the jacket gutter life and safety are excellent. Generally, the maximum length of a single water-cooled jacket gutter that can be manufactured is about 1.5 m, whether it is a cast jacket or a drilled jacket. Hereinafter, the jacket gutter is simply connected for simplicity). This is shown in FIGS. 4 and 5. FIG. 4A is a front view of a jacket gutter, and FIG.
(B) is a side view of a gutter configured by connecting a plurality of jacket gutters. FIG. 5 is a plan view of the gutter. Reference numeral 1 denotes a jacket gutter, and 2 denotes a channel slid over the jacket gutter 1, through which cooling water flows. Such a fluid flow gutter is formed by connecting a plurality of jacket gutters 1. Generally, a plurality of water passages 2 are provided in parallel with each other in the longitudinal direction of the jacket gutter 1. However, since it is necessary to connect the jacket gutter 1 to the jacket gutter 1 as described above, the water channel 2 cannot be provided to the end surface of the jacket gutter as shown in FIG. 4B, and an external water channel such as a hose is taken. Therefore, the distance L between the end of the water channel and the end face of the jacket gutter could not be substantially reduced to 45 mm or less. [0008] The connection of the jacket gutter is performed by lowering the downstream jacket gutter slightly below the upstream jacket gutter so that the flow of the melt is not disturbed by the reverse step. It is difficult for the melt to come into contact with the part, and the damage is not different from the center part of the jacket gutter, but the lower end part has a positive step, so the force that the melt falls to the jacket gutter on the downstream side is applied, so that the loss easily progresses There was a problem. SUMMARY OF THE INVENTION It is an object of the present invention to prevent the water cooling jacket gutter, particularly the downstream end of a drilled water cooling gutter from being melted. [0010] In order to solve the above-mentioned problems, the present invention provides a copper or copper alloy cast plate or a rolled or forged material which is formed by directly passing a cooling water channel through a cooling water channel. In a water cooling jacket gutter for refining kava or karami, a main water passage is provided in parallel with a flowing direction of a melt, and a sub water passage is provided at least at a downstream end of the jacket gutter in parallel with its end surface. Located in water cooling jacket gutter. In the water-cooled jacket gutter of the present invention configured as described above, the distance L between the end of the water channel and the end face of the jacket gutter is provided by the sub-channel provided parallel to the downstream end of the jacket gutter. Can be reduced to 10 mm. This effectively prevents the lower end of the jacket gutter from being damaged. The main channel provided in parallel with the direction in which the melt flows prevents the central portion of the jacket gutter main body from being damaged. FIG. 1 shows a first embodiment of the present invention, FIG. 2 shows a second embodiment, and FIG. 3 shows a third embodiment. 1, 2, and 3, (a) is a side view, (b) is a front view, and (c) is a plan view. First, a first embodiment will be described with reference to FIG. FIG. 1 shows a jacket gutter 1 having a horseshoe cross section. A main channel 3 is formed in a longitudinal direction of the jacket gutter 1, that is, in a direction parallel to the flow direction of the melt. When used, the sub-channel 4 is formed so as to be parallel to the end face on the downstream side. The processing method is as follows. First, the sub-channel 4 is placed on a flat copper plate, processed into a horseshoe shape, and then the main channel 3 is filled. FIG. 2 shows a jacket gutter 1 having an inverted trapezoidal cross section used when the entire flow gutter has a bent portion. The end of the jacket gutter 1 has an oblique end surface for forming a bent portion. . Also in this case, the sub-channel 4 is formed so as to extend parallel to the bottom of this end face. As is clear from FIG. 1 and FIG.
Is parallel to the end face of the jacket gutter,
The water supply and drain ends are located on both sides of the jacket gutter and are separated from the water supply and drain ends of the main waterway 3, so that L is 10 mm from the end face.
The sub-channel 4 can be provided at a position of about mm. Therefore, the cooling of the end of the jacket gutter, which has not been possible conventionally, can be sufficiently performed, and local melting can be prevented. The third embodiment shown in FIG. 3 is a case in which a water channel 5 connecting the sub water channel at the tip end and the central main water channel is provided in the jacket gutter 1 having a rectangular cross section. This is to reduce the amount of cooling water. Yes, the effect of preventing melting is the same as when the sub-channel is made independent. Although the embodiments have been described above, the present invention is not limited to these embodiments. As set forth in the claims, a main water passage is provided in parallel with the direction in which the melt flows, and a sub-water passage parallel to the end face of the jacket gutter is provided. Is provided, a similar effect can be obtained. As described above in detail, according to the water-cooled jacket gutter of the present invention, the end portion, which has conventionally determined the life of the water-cooled jacket gutter, is suppressed from being melted. Therefore, the life of the water-cooled jacket gutter is doubled.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a first embodiment of the present invention. FIG. 2 is a diagram showing a second embodiment of the present invention. FIG. 3 is a diagram showing a third embodiment of the present invention. FIG. 4 is a front view of a conventional jacket gutter and a side view of a gutter formed by connecting a plurality of the gutters. FIG. 5 is a plan view of a gutter. [Description of Signs] 1 Jacket gutter 2 Waterway 3 Main waterway 4 Sub-waterway 5 Waterway L connecting main waterway and sub-waterway Distance between waterway and jacket gutter end face

Claims (1)

(57) [Claims 1] A water-cooled jacket gutter for Kawa or Karami of copper smelting formed directly through a cooling water channel on a cast plate or rolled or forged material of copper or copper alloy. At
A water-cooled jacket gutter, wherein a main water passage is provided in parallel with a flowing direction of a melt, and a sub-water passage is provided at least at a downstream end of the jacket gutter in parallel with its end face.