JPH0578366U - Dust collector - Google Patents

Abstract

(57) [Summary] [Purpose] When pouring molten metal into a plurality of moving molds from a ladle, smoke and dust generated from the ladle and molds are efficiently collected. [Structure] A plurality of dust collecting hoods provided separately in the moving direction of the mold and a collection hood next to the dust collecting hood closest to the ladle during pouring, behind the ladle in the traveling direction. Lower the dust volume from the dust collection hood closest to the ladle so that the dust collection hood next to the dust collection hood closest to the ladle position during pouring is in front of the ladle in the traveling direction. It is a dust collector having a control device for lowering the air volume below the dust collection air volume of the dust collection hood on the rear side of the ladle. And, it has a push airflow device for generating an airflow in the direction of pushing it into the dust collecting hood.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust collector that collects smoke and dust generated from a ladle and a casting mold when pouring molten metal into a plurality of moving molds from the ladle.

[0002]

[Prior Art]

 In the casting process where casting is performed continuously, a plurality of molds that move in a row are molded separately with the molding sand in the molding process using the molding sand to mold the upper mold and the lower mold separately. It has been practiced to transfer the ladle to a ladle, carry it to a pouring zone, and pour the molten metal into the mold from a ladle that can move substantially along the moving direction of the mold to obtain a desired cast product. When producing spheroidal graphite cast iron, an inoculant or the like is added when pouring molten metal from a ladle into a mold. At this time, smoke such as soot and fume is generated. Therefore, a smoke exhaust hood is installed above the ladle in the pouring zone and the mold to collect and remove smoke from the dust collector.

[0003]

[Problems to be solved by the device]

 However, in order to exhaust smoke from the entire pouring zone, a large amount of air volume is required, and since the ladle is moved by a crane, etc., there are many restrictions on the space for installing the exhaust gas hood, and therefore, it is efficient. It was difficult to smoke. In addition, if smoke is just emitted, soot and fumes are contained in the smoke, which may cause air pollution. However, as mentioned above, a large amount of equipment cost is required to install the dust collector, and a dust collector that efficiently collects smoke with a small air volume has been desired.

The present invention meets the above-mentioned demands, and an object of the present invention is to provide a dust collector that efficiently collects a small amount of air, prevents air pollution, and improves the working environment.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a casting having a plurality of molds that move in a row and a ladle that can move substantially along the moving direction of these molds and that pours molten metal into the molds. A dust collector used in the apparatus, wherein the dust collection air volume of the dust collection hood that is closest to the ladle during pouring among the plurality of dust collection hoods divided in the moving direction of the mold is It is characterized by having a control device that raises the dust collection air volume of the dust collection hood next to the nearest dust collection hood.

Further, a push airflow device for generating an airflow in a direction of pushing the dust collection hood is provided.

[0007]

[Action]

 A plurality of dust collection hoods with air flow control devices are installed above the mold in the pouring zone, the position during pouring is detected, the dust hood above the position during pouring strongly collects dust, and the The dust collection hood on the top of the mold is weak, and the top dust collection hood of the mold before pouring is fully closed to collect dust. Also, since the smoke from the ladle and mold during pouring is pushed into the dust collection hood by the push airflow device, it is possible to efficiently collect dust with a small air volume. Therefore, it is possible to obtain a dust collecting device having a simple structure such as a dust collecting hood, easy to manufacture, inexpensive, and easy to maintain.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. 1 is a front view of the entire dust collector, and FIG. 2 is a side view of FIG.

In the figure, after molding, the molds 1 matched with each other move in the direction of arrow a, and the molten metal loaded in the spout 1a of this mold 1 and the pouring carriage 2 movable in the directions of arrows b and c enter. The pouring port 3a of the ladle 3 is aligned, and pouring is performed by synchronizing the moving speed of the mold 1 and the moving speed of the pouring carriage 2. During this pouring, the pouring dolly 2 moves in the direction of the arrow b, and the position detecting device 14 attached to the pouring dolly 2 detects in order from the position detecting devices 8a to 8b attached to the dust collecting hood 5. Then, the air volume adjusting device 11 of the dust collecting hood 5 is fully opened, the air volume adjusting device 10 of the dust collecting hood 4 is halfway opened, and the air volume adjusting device 12 of the dust collecting hood 6 is fully closed. The fumes are collected by the dust collector via the duct 13.

Further, when the pouring truck 2 moves in the direction of the arrow b, and the position detecting device 14 attached to the pouring truck 2 is detected in order of the position detecting devices 9a to 9b attached to the dust collecting hood 6. The air flow rate adjusting device 12 of the dust collecting hood 6 is fully opened, and the air flow rate adjusting devices 10 and 11 of the dust collecting hoods 4 and 5 are open halfway, and smoke is collected into the dust collecting device through the duct 13.

Further, the pouring truck 2 moves in the direction of the arrow c, and the position detecting device 14 attached to the pouring truck 2 is detected in the order of the position detecting devices 8b to 8a attached to the dust collecting hood 5. Then, the air flow rate adjusting device 10 of the dust collecting hood 4 is fully opened, the air flow rate adjusting devices 11 and 12 of the dust collecting hoods 5 and 6 are fully closed, and smoke is collected into the dust collecting device through the duct 13. To be done. These movements are electrically controlled and automatically performed.

Furthermore, a push airflow device 15 attached to the pouring truck 2 is attached to the upper part of the ladle 3, and smoke emitted from the ladle 3, the pouring port 3a and the sprue 1a of the mold 1 is transferred to the dust collecting hood 5. The wind is pushed in to improve the dust collection efficiency and collect dust.

[0013]

[Effect of the device]

 As described above, according to the present invention, in the pouring zone, the dust collecting hood can be installed in the vicinity of the pouring from the ladle to the mold to efficiently collect dust with a small air volume. And since this dust collection has a simple structure, it can be easily and inexpensively manufactured, maintenance is easy, air pollution can be prevented, and the working environment can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view of FIG.

[Explanation of symbols]

 1. Template 1a. The gate 2. Pouring trolley 3. Ladle 3a. Pouring spout 4, 5, 6. Dust collecting hood 8a, 8b, 9a, 9b. Position detection device 10, 11, 12. Air volume adjustment device 13. Dust collection duct 14. Position detection device 15. Push airflow device

Claims (2)

[Scope of utility model registration request] 1. A dust collector used in a casting apparatus having a plurality of molds that move in a row and a ladle that is movable along the moving direction of these molds and that pours molten metal into the molds. Of the plurality of dust collecting hoods divided in the moving direction of the mold, the dust collecting air amount of the dust collecting hood closest to the ladle during pouring is A dust collector having a control device for increasing the amount of dust collected by the dust collecting hood. 2. The dust collecting apparatus according to claim 1, further comprising a push air flow device for generating an air flow in a direction of pushing the dust collecting hood.