JPH0619554Y2 - Tilting device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is intended for use in discharging a steel slag after cooling and solidifying various steel slag generated from a pig iron and steel making process in a cooling container. Regarding the turning device.

(Prior Art) Various types of steel slag generated in the ironmaking and steelmaking processes, for example, a general treatment of a converter slag generated in a converter is to receive the converter slag discharged from the converter in a slag pan truck. However, the steel slag discharged from the ladle is received in the steel slag container, and the solidified steel slag is processed by discharging the slag from the ladle into the molten slag for legal cooling. It is configured such that it is cooled and solidified in a moving process to a point, and the steel slag container is tilted by a tilting device at the solidified steel slag treatment location and discharged into the solidified steel slag treatment location.

As described above, various types of steel slag generated from the ironmaking and steelmaking processes are
The slag pan trolley or steel slag container is received and moved to cool and solidify the steel slag, which is then discharged in the treatment process. At this time, the slag pan trolley or steel slag container is tilted. It uses a tilting device to rotate.

As a conventional tilting device, in particular, a tilting device for a steel slag container (hereinafter referred to as a cooling container), there is a practically-developed sho 58-31255.
There is proposed a tilting device (which is shown as a turning device in the same publication, but is referred to as a tilting device here).

The tilting device of the prior application example is, as shown in the same publication, a tilting mechanism for placing and cooling the cooling container in order to take out the converter slag cooled and solidified in the cooling container from the cooling container,
It has a fixing mechanism for fixing the cooling container to the tilting mechanism, a cover and a hood for collecting dust generated at the time of taking out, and receives the converter slag discharged from the converter. The cooling container is laterally hung and moved to the installation position of the tilting device by an overhead crane, fixed to the tilting device, and then the cooling device is tilted by the tilting device to transfer the cooling container inside. The furnace slag is discharged, and after discharging it, it is horizontally suspended again by an overhead crane and transported to the original position.

The dust collecting hood has a portable structure and is moved to a position covering the tilting device when the cooling container is tilted by the tilting device, but when the cooling container is fixed to the tilting device and the cooling container When the converter slag inside is discharged, and after it is discharged, it is evacuated to a position where it does not hinder the above work when it is horizontally hung again by an overhead crane and transported to the original position.

(Problems to be Solved by the Invention) As described above, the cooling container to be fixed to the tilting device used in the above-described conventional tilting device is horizontally hung by the overhead crane,
Although it is moved to a predetermined position, since the cooling container is a heavy object, a large overhead crane is required and a building for laying it becomes large.

In addition, the dust collection equipment for dust generated when discharging the converter slag in the cooling container is moved to a position that covers the turning device when discharging the converter slag, and is retracted from that position during other work. , Must be moved according to each work process.

Therefore, in the conventional tilting device, each process such as transfer of the cooling container to the tilting device, fixing to the tilting device, discharge of the converter slag in the cooling container, transfer to the original position after discharge, etc. The problem is that it is complicated.

(Means for Solving the Problems) The present invention is applied to a tilting device used when discharging various types of steel slag generated from the ironmaking and steelmaking processes by cooling and solidifying in the cooling container. From a cooling container carrier that mounts the container in a tiltable manner, a tilting mechanism that tilts the cooling container that is mounted on the cooling container carrier, and a cooling container that tilts by the tilting mechanism. The above problem was solved by adopting a configuration including a fixed hood having an opening for collecting the dust of the discharged steel slag, a fixed dust collecting mechanism including a dust collecting duct and a dust collecting hood. .

(Operation) According to the device of the present invention, the cooling container is placed on the carrier and can be tilted on the carrier, so that even if the cooling container is a heavy object, it cannot be moved. Since there is no hindrance, and the tilting mechanism of the cooling container is installed at a position where the cooling container is tilted when the cooling container is discharged,
A large overhead crane is no longer needed.

Further, since the dust collection mechanism for dust generated when discharging the converter slag in the cooling container is fixed to the place where the converter slag is discharged from the inside of the cooling container, it is necessary to move it like a conventional device. lost.

(Embodiment) A tilting device for a cooling container according to an embodiment of the present invention will be described below.
Description will be given based on a side view of the drawing.

Reference symbol A indicates a tilting mechanism of the cooling container, which will be described later, reference symbol B indicates a dust collecting mechanism of dust generated when the steel slag in the cooling container is discharged, and reference symbol C indicates a carrier of the cooling container.

The tilting mechanism A of the cooling container is installed at a position relative to the dust collecting mechanism B fixed to the place where the steel slag is discharged. Its detailed structure is on the spindle (1a) at the end of the trolley (1) laid on the foundation. Boom (2)
The lower end of the shaft is swingably attached, and the support shaft (2a) provided on the upper end
Hook to engage with the tilting fitting of the cooling container described later in
An arm (3) having (4) attached at its tip is pivotally pivoted so that the boom (2) is rocked between the boom (2) and the base (1). In addition to mounting 5), a hydraulic cylinder (6) for swinging the arm (3) is installed between the boom (2) and the arm (3), and swings as shown by the dashed line in the figure. It is a thing.

The reference numerals (10a) (10b) (10c) (10d) are the hydraulic cylinders.
(5) It is the support shaft of (6).

The dust collecting mechanism B includes a fixed hood (91) having a partial opening (94).
A fixed type dust collecting mechanism body (9) composed of a dust collecting duct (92) and a dust collecting hood (93) is provided, and a stopper (95) for preventing the carrier cart from overturning is provided at the lower end of the fixed hood (91). Is provided.

The transport vehicle C for the cooling container comprises a transport vehicle main body (8) with wheels (81) traveling on a rail R laid on a foundation and a cooling container (7) mounted on the transport vehicle main body (8). The cooling container (7) and the carriage body (8) are pivotally attached by means of support pins (12) to metal fittings (71) and (82) provided at their respective side ends. ing.

Reference numeral (11) is a tilting hanging metal fitting installed at a side end (right end in the figure) of the cooling container (7), and is a hook (4) at the tip of the arm (3) of the tilting mechanism A. Interlock and the arm
The cooling container (7) is tilted by the rocking action of (3), and the steel slag is discharged from the cooling container (7) into the dust collecting mechanism B.

The structure of the device of the present invention is as described above. Next, the operation will be described.

The cooling container (7) receiving the steel slag discharged from the ladle is placed on the carrier body (8), and the metal fittings (71) and the metal fittings are also attached.
Carrier C in which (82) and (82) are connected and fixed via support pins (12)
Is moved and stopped at a position where the dust collecting mechanism B is provided.

After the carriage C stops, the boom (2) and arm of the tilting mechanism A
(3) is slightly rocked by the operation of each hydraulic cylinder (5) (6), and the hook (4) at the end of the arm (3) is manually or automatically attached to the tilting hanging metal fitting (11) of the cooling container (7). Connect with.

After that, the hydraulic cylinders (5) and (6) are operated to rock the boom (2) and the arm (3) as shown in the drawing, and the cooling container (7) is centered on the support pin (12). It is tilted toward the inside of the fixed hood (91) along a circular arc trajectory (direction indicated by an arrow in the figure).

At this time, the boom (2) and arm (3) of the tilting mechanism A are automatically controlled by the servo valves provided in the hydraulic circuits (not shown) in the hydraulic cylinders (5) and (6), respectively, to ensure proper operation. Designed to do.

The steel slag in the cooling container (7) tilted as described above is separated from the inside of the cooling container (7) at a tilt angle of about 110 ° and discharged into the fixed hood (91).

At this time, since the cooling container (7) forms a part of the shielding hood of the fixed hood (91), dust can be collected in a substantially sealed state.

In addition, until the dust collection is completed, the cooling container (7) is tilted up to a tilt angle of about 135 ° and held for about 20 seconds.After the dust collection is completed, the operation is reversed from the previous operation. The boom (2) and the arm (3) of the tilting mechanism A are reversely operated by the hydraulic cylinders (5) and (6) to rotate the cooling container (7) in a clockwise arc around the support pin (12). The cooling container (7) is tilted along the track (the direction opposite to the direction shown by the arrow in the drawing), the cooling container (7) is returned onto the carrier body (8), and the hook (4) is disengaged.

Then, the carriage C is returned to the original position for accommodating the steel slag such as the converter slag.

FIG. 2 is a front sectional view of a main part of FIG. 2 and a side view of FIG. 3 from the direction of the arrow III in FIG. 2 is a modification of the dust collecting mechanism, and is a partial opening type fixed hood (91 ), As shown in the drawing, a pair of left and right upper rocking hoods (13) and (13) that are movable in association with the tilting of the cooling container are provided at the upper end of the opening of the fixed hood (91), and on both sides thereof. The part is provided with a side hood (14) configured to hang down by a canter weight (15) before the cooling container (7) is tilted.

By adopting the above configuration, the dust collecting effect can be further enhanced.

(Advantage of the Invention) According to the cooling container tilting device of the present invention, since the cooling container is mounted on the carrier and tilted on the carrier, the cooling container is a heavy object. However, there is no hindrance to its movement, and the process steps can be shortened.The tilting mechanism of the current cooling container is installed at the position where the cooling container is tilted when the cooling container is discharged. Therefore, not only a large overhead crane but also a building for laying the large crane is not required, which results in cost reduction.

Furthermore, the dust collection mechanism for the dust generated when discharging the steel slag in the cooling container has a fixed configuration at the place where the steel slag is discharged from the inside of the cooling container, so there is no need to move it like the conventional device, and it is fixed. With the hood and the cooling container, it is possible to collect dust in a sealed state, and there is an effect that secondary pollution does not occur.

[Brief description of drawings]

FIG. 1 is a side view showing a tilting device for a cooling container according to an embodiment of the present invention, FIG. 2 is a front sectional view of an essential part showing a modified example of a dust collecting mechanism in the tilting device, and FIG. FIG. III is a side view from the direction of the arrow in FIG. The names of the symbols are as follows. (1) …… base, (2) …… boom, (3) …… arm, (4) ……
Hook, (5) …… Boom hydraulic cylinder, (6) …… Arm hydraulic cylinder, (7) …… Cooling container, (71) …… Metal fittings, (8) …… Transport vehicle body, (81)… … Wheels, (82) …… Metal fittings, (9) …… Dust collection mechanism body, (91) …… Fixed hood, (92)
...... Dust collection duct, (93) ...... Dust collection hood, (10a) (10b) (10
c) (10d) …… Support shaft of hydraulic cylinder, (11) …… Tilt suspension metal fittings, (12) …… Support pin, (13) …… Top swing hood, (14) …… Side hood, ( 15) …… Canter weight,
A: tilting mechanism, B: carrier cart, C: dust collecting mechanism,

Claims (1)

[Scope of utility model registration request] 1. A tilting device used when discharging various kinds of steel slag generated from a pig-making and steel-making process after cooling and solidifying the steel slag in the cooling container. Cooling container carrier, a tilting mechanism for tilting the cooling container mounted on the cooling container carrier, and a steel slag discharged from the cooling container tilted by the tilting mechanism. Tilting device comprising a fixed hood having an opening for collecting the above dust, a fixed dust collecting mechanism including a dust collecting duct and a dust collecting hood.