JP3029337U - Dross receiving device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: Since the mouth of a portable container is small with respect to the width dimension of a shooter, it is very difficult to scrape the dross well into the container without spilling it around. A dross receiving device 19 is configured by a container 21 made of a material having a small thermal conductivity and a machine frame 27 in which the container 21 is housed. The container 21 has a length approximately the same as the frontage of the working port 9 of the melting furnace 1 and is a gutter-shaped main portion 23 having a substantially semi-circular cross section. And two chutes 25 inclined toward the opposite side. Then, the fork 33 of the forklift 31 is inserted into the fork insertion port 29 of the dross receiving device 19 and lifted to move the dross 17 to the tilt processing container 35, or inserted into the fork insertion port 29 and lifted to raise the dross receiving device 1.
Carry 9.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a dross receiving device for containing hot dross taken out from a melting furnace.

[0002]

[Prior art]

 In order to remove the hot dross generated in the melting furnace from the melting furnace and transfer it to the dross processing equipment, a shooter equipped in the melting furnace and some kind of container are required. Portable containers or boxes dedicated to transportation are used.

The conventional work of taking out and transporting dross using a portable container will be described with reference to FIGS. 7 and 8. In the figure, a indicates a dross processing container attached to the dross processing device. Reference numeral b indicates a melting furnace, and the melting furnace b is provided with a melting chamber c. A laterally long ash outlet e which is opened and closed by a shutter (not shown) is formed on the front wall d of the melting furnace b. The ash outlet e is for charging a metal material into the melting chamber c and taking out dross.

Reference numeral f denotes a shooter fixed to the front wall d by welding or the like, and this shooter f is made of a material having high heat resistance such as steel or cast iron and which is not easily deformed. The shooter f is provided so as to project from a position along the entire lower edge of the ash outlet e in a posture inclined forward to some extent. g indicates the molten metal in the melting chamber c, and h indicates the dross suspended in the molten metal g.

The dross processing container a has a circular shape that is relatively shallow, and an insertion portion i into which a fork of a fork lift is inserted is provided at a lower end portion. Therefore, it can be transported by a cargo handling vehicle such as a forklift. The removal of the dross h is performed as follows. The dross processing container a is placed below the tip of the shooter f, and the dross h is scraped out by the scraping tool j mounted on the fork of the forklift. The scraped dross h flows over the shooter f and falls into the dross processing container a. Then, the dross processing container a filled with dross is transported to the place where the dross processing device is located.

[0006]

[Problems to be solved by the device]

 The above-mentioned conventional working method using the dross processing container a has the following problems. Since the mouth of the dross processing container a is small with respect to the width dimension of the shooter f, it was very difficult to scrape out the dross h. Especially when a large amount of molten metal g is mixed in the dross h, the molten metal g often inevitably falls from the shooter f to the floor. Since the temperature of dross and molten metal generally reaches 700 ° C or higher, it is very dangerous to spill it on the floor.

Further, a part of the dross h or the like that is scraped out is inevitably solidified on the shooter f, so that it takes a lot of trouble to scrape it off. Furthermore, the molten metal g solidified on the shooter f cannot be recovered after all, which is a major cause of a decrease in yield.

Further, the ash outlet e is not only used for taking out the dross h, but is also used for charging the melting material into the melting chamber c, so that it is provided at a relatively low position. In addition, the shooter f is attached in a posture inclined forward and downward. Therefore, the dimension H (see FIG. 8) between the tip of the shooter f and the floor becomes unexpectedly small. Therefore, the height of the processing container a or another box is restricted by the dimension H, and the processing container a or the like cannot be provided with a sufficient height (capacity). There was a problem that I had to do it.

The present invention has been made in view of the above-mentioned conventional problems, and it is possible to accommodate dross and molten metal without spilling the surroundings without attaching a shooter to the ash outlet of the melting chamber. Moreover, it is an object of the present invention to provide a dross receiving device that can secure a large capacity regardless of the size from the floor to the ash outlet.

[0010]

[Means for Solving the Problems]

 The invention of claim 1 is a dross receiving device for receiving hot dross taken out from a melting furnace, and a gutter-shaped container having both ends closed, which is arranged below an ash outlet of the melting furnace. A dross receiving device comprising a machine frame supporting the container.

According to a second aspect of the present invention, the machine frame is provided with an inserting portion for inserting a working arm of the cargo handling vehicle, and the inserting portions are provided at two positions respectively at a central portion in the longitudinal direction and both left and right end portions of the machine frame. The dross receiving device according to claim 1, wherein the dross receiving device is provided.

A third aspect of the invention is the dross receiving device according to the first or second aspect, wherein the container is provided with a heat insulating layer for enhancing heat retention.

[0013]

[Embodiment of device]

 Hereinafter, the details of the dross receiving device of the present invention will be described according to the embodiments shown in the drawings. The outline of the melting furnace 1 will be described. Reference numeral 3 indicates a melting chamber, and this melting chamber 3 is formed of brick into a rectangular box shape. A hood 5 is arranged above the melting chamber 3. Reference numeral 7 denotes a front wall of the melting chamber 3, and a horizontally long rectangular ash outlet 9 is formed at an intermediate portion in the vertical direction of the front wall 7. There is. Reference numeral 11 denotes a shutter, which is slightly larger than the ash outlet 9. The shutter 11 is suspended by a chain 13 and can be moved between a position where the ash outlet 9 is closed and a position where the ash outlet 9 is opened. Further, reference numeral 15 indicates the molten metal in the melting chamber 3, and 17 indicates the dross suspended in the molten metal 15.

Next, the dross receiving device 19 will be described. The container 21 is composed of a horizontally elongated gutter-shaped main portion 23 having a semicircular cross section, and two right and left chutes 25 positioned so as to close both ends of the main portion 23. The postures are inclined toward opposite sides. The length of the main portion 23 in the longitudinal direction is the same as the left-right width of the ash outlet 9 of the melting furnace 1. The container 21 is formed of a metal material having a low thermal conductivity, such as SUS304 or SUS430.

Reference numeral 27 denotes a machine casing of the dross receiving device 19, and the machine casing 27 is made of metal. The machine frame 27 supports the container 21, has a length substantially the same as the length of the main portion 23 of the container 21, and has a U-shape that opens upward as viewed in the longitudinal direction. The container 21 is positioned such that the main portion 23 thereof fits inside the machine frame 27, and the upper end of the main portion 23 is fixed to the upper beams 27 a and 27 a of the machine frame 27.

Reference numeral 29 denotes a fork insertion opening as an insertion portion provided at the bottom of the machine frame 27. This fork insertion port 29 is for inserting the working arm of a cargo handling vehicle such as a forklift truck from the width direction of the machine frame 27, and is provided at two locations respectively at the center of the machine frame 27 in the longitudinal direction and at both left and right ends. Has been. As shown in FIG. 3, the fork 33 of the forklift 31 is inserted into the fork insertion port 29 of the dross receiving device 19 and lifted to tilt or carry.

The scraping of the dross 17 is performed as follows. The dross receiving device 1 is placed below the ash outlet 9 of the melting furnace 1 so that the main portion 23 thereof corresponds to the ash outlet 9. At this time, the main portion 23 is arranged so that there is no gap between the main portion 23 and the edge of the ash outlet 9 on the lower end side. Then, a scraping tool similar to the scraping tool j described above is mounted on the fork 33 of the forklift 31, and the dross 17 in the melting chamber 3 is accommodated in the container 21 by the scraping tool.

Since the container 21 covers the entire width of the ash outlet 9, the scraped dross 17 and the molten metal 15 mixed therewith will not spill out of the container 21. Therefore, the scraping work can be performed smoothly without worrying about such a situation. As shown in FIG. 4, the dross receiving device 1 is tilted by the forklift 31 while being raised to a position higher than the processing container 35, and the dross 17 in the container 21 is transferred to the processing container 35.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and there may be changes in design within the scope of the present invention. Also included in the present invention.

For example, in the embodiment, the container has a horizontally long gutter shape whose cross section is a semi-circular shape, but this cross section may have a V-shape or a lateral U-shape. Like the containers 41 and 45 shown in FIGS. 5 and 6, a double structure having a hollow portion as a heat insulating layer is provided with a heat insulating material 43 such as caor and asbestos in the hollow portion to improve heat retention. It is also possible to The heat insulating material 43 may not be provided. Further, the hollow portions of the containers 41 and 45 may be evacuated to further improve heat retention.

Since the means for tilting and carrying this container is not limited to the forklift, the structure of the machine frame can be arbitrarily selected, and the container can be lifted or tilted in the machine frame. It may be configured to include a lift device. It goes without saying that the structure of the melting furnace in which the dross receiving device according to the present invention can be used is not limited to that shown in the embodiment. If the ash outlet of the melting furnace has a large left and right width, it is possible to use a plurality of dross receiving devices arranged in the longitudinal direction.

[0022]

[Effect of device]

 As described above, in the dross receiving device of the present invention, even if a shooter is not provided at the ash outlet of the melting chamber, the dross can be reliably stored without spilling around. Therefore, it is not necessary to scrape off the dross that has solidified on the shooter. Therefore, the working time can be significantly shortened, and the high temperature dross and molten metal can be prevented from spilling. In addition, the necessary molten metal will not solidify on the shooter and become unrecoverable, so the yield can be increased accordingly.

Further, since the height of the container attached to the dross treatment apparatus or the box for transportation is not restricted by the structure of the melting furnace, the height of the container is large, that is, the volume of the container is small. Larger containers can be used, and the need for frequent container replacement is eliminated, improving workability. Further, the container of the dross treatment device does not need to be placed in front of the melting chamber, so that the size can be freely selected.

[Brief description of drawings]

FIG. 1 is a perspective view showing a dross receiving device of the present invention placed in front of a melting furnace.

FIG. 2 is a front view showing the dross receiving device of the present invention placed in front of a melting furnace.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2 in a state of being transported by a forklift.

FIG. 4 is a front view for explaining the work of transferring the dross to the container of the processing apparatus.

FIG. 5 is a sectional view of a container according to another embodiment.

FIG. 6 is a cross-sectional view of a container according to another embodiment.

FIG. 7 is a perspective view for explaining a conventional work of taking out and carrying out the dross, which is carried out using a portable container attached to the dross processing device.

8 is a side view showing the melting furnace and the container shown in FIG. 7 with a part thereof cut away.

[Explanation of symbols]

 1 Melting Furnace 3 Melting Chamber 5 Hood 7 Front Wall 9 Ash Outlet 11 Shutter 13 Chain 15 Molten Metal 17 Dross 19 Dross Receptor 21 Container 23 (Container) Main Part 25 (Container) Chute 27 Machine Frame 27a (machine frame) Upper beam 29 (machine frame) fork insertion port 31 Forklift 33 Fork 35 Processing container

Claims (3)

[Scope of utility model registration request] 1. A dross receiving device for receiving hot dross taken out from a melting furnace, comprising a gutter-shaped container having both ends closed, which is arranged below an ash outlet of the melting furnace. A dross receiving device comprising a supporting machine frame. 2. An insertion portion for inserting a working arm of a cargo handling vehicle is provided in the machine frame, and the insertion portions are provided at two locations respectively at a central portion in the longitudinal direction and both left and right end portions of the machine frame. The dross receiving device according to claim 1. 3. The dross receiving device according to claim 1 or 2, wherein the container is provided with a heat insulating layer for enhancing heat retention.