JP6378617B2 - Scrap bucket - Google Patents

Description

  The present invention relates to a scrap bucket that transports and loads scrap into an electric furnace for steel making, and more particularly to a scrap bucket that includes a gate that opens and closes in two at the bottom of a bucket body.

  In the charging of the scrap into the electric furnace, the scrap is put into a transfer container called a scrap bucket and transferred to the upper part of the electric furnace (see Patent Document 1 and Non-Patent Document 1). The scrap bucket includes a gate divided into two at the bottom of a cylindrical bucket body, and is supported by pins and levers that can be rotated so that the gate opens on both sides.

  In FIG. 4, gates 2, 2 that are opened and closed in two parts are arranged at the bottom of a cylindrical bucket body 1 so as to surround the outside of the lower end of the bucket body 1. Horizontal pins 4 and 4 for hooking a main winding hook 3 for hanging the bucket are attached to the upper portion of the bucket body 1. Support pins 5 and 5 are symmetrically projected on the bucket body 1, and intermediate portions of L-shaped suspension links 6 are rotatably attached to the upper surfaces of the gates 2 and 2, respectively. At the same time, the upper ends of the suspension links 6 and 6 are pin-connected via the link plates 7 respectively.

  The divided surfaces of the gates 2 and 2 are brought into close contact with each other by their own weight, thereby holding the scrap accommodated therein. One end of the auxiliary winding wire ropes 9 and 9 is fixed to each suspension piece 8 and 8 fixed to the outside of the gates 2 and 2 divided into two, and the other end of the auxiliary winding wire ropes 9 and 9 is the suspension hanger for opening and closing the gate. 10 is fixed.

  In FIG. 5, the opening operation of the gates 2 and 2 is performed by hanging the hanging hanger 10 for opening and closing the gate ropes 9 and 9 attached to the gates 2 and 2 on the auxiliary winding hook 11 of the overhead crane. As a result, the gates 2 and 2 having the divided structure are rotated by the support pins 5 and 5 as fulcrums and turned left and right with the dividing plane as a boundary. On the other hand, the closing operation of the gates 2 and 2 is a structure that naturally closes by loosening the auxiliary winding wire ropes 9 and 9 due to the relationship between the center of gravity of the gates 2 and 2 and the support position of the gates 2 and 2. Yes.

JP 2008-151397 A

“Iron & Steel Handbook” Volume II “Making Steel and Steel Making” 3rd Edition Page 541 October 15, 1979 Issued by Maruzen Co., Ltd.

  When putting scrap into the scrap bucket, there is no problem if the scrap enters the entire gate surface, but if the scrap is concentrated only near the mating surface of the gate, the gate is opened when the scrap bucket is lifted There was a problem that the force worked in the direction, and the gate was opened due to the relationship between the support pin and the center of gravity, and the scrap fell.

  In order to prevent the gate from opening, it is conceivable to insert a gate lock pin for preventing the gate from opening before putting the scrap into the scrap bucket. However, it is easy to lock the electric furnace because it is not a place where workers can approach. Cannot be released. A method of operating the gate lock pin with a driving device and releasing the lock by remote control is also conceivable. However, in this case, there is a problem that not only a driving facility is required but also complicated.

  Therefore, the present invention can easily set the gate lock pin to the gate so that the scrap bucket gate can be prevented from being opened when it is unnecessary, and does not require a special device for unlocking. A scrap bucket having a structure that can be easily unlocked on an electric furnace is provided.

A scrap bucket according to the present invention is a scrap bucket that transports and charges scrap to an electric furnace, and includes a gate that opens and closes in two at the bottom of the bucket body, and locks the gate divided in two A gate lock pin for suspending a gate lock pin suspension chain from a gate opening / closing hanger that opens and closes the gate, and each of the gates overlaps vertically when the gate is in a closed state. A guide hole that can be closed and locked by inserting a lock pin is provided, and the length of the chain is determined by pulling the gate lock pin upward in the length direction just before the gate opens when the gate opening / closing hanger is rolled up. and the gate is a length that is unlocked missing from the guide hole by being Lock pin after the gate is closed when the closing is characterized in that the length to be inserted into the guide hole.

  In the above configuration, the gate lock pin suspension chain guide having a guide hole for guiding the gate lock pin suspension chain suspended from the gate opening / closing suspension hanger is inserted into the bucket lock gate lock of the bucket body. It is provided directly above a possible guide hole, a guide hole superimposed on the guide hole is formed into a guide hole with a vertical cross-section, or is guided by the guide hole at the lower end of the lock pin A guide chain may be connected.

  According to the present invention, when the gate opening / closing hanger is rolled up when the gate is opened, the gate lock pin comes out of the guide just before the gate opens, and then the gate opens and the gate opening / closing hanger is lowered and the gate is closed. The pin is inserted into the pin guide and the gate is locked. Therefore, the gate can be easily locked / unlocked only by the same operation as the conventional gate opening / closing operation.

  The present invention allows a gate lock pin to be easily inserted into a gate so that the gate does not open even when a scrap bucket is lifted when a small amount of scrap is loaded, and can be easily unlocked on an electric furnace without requiring a special device. An electric furnace scrap bucket having a possible structure is provided.

(A) is the front schematic of the scrap bucket of this invention, (b) is the same side schematic. (A) is a gate lock pin guide of the scrap bucket of this invention, (b) is a schematic side view which shows a gate lock pin guide and a gate lock pin. (A) is the front schematic which shows the state which opened the gate of the scrap bucket of this invention, (b) is the same side schematic. (A) is the front schematic of the conventional scrap bucket, (b) is the same side schematic. (A) is the front schematic which shows the state which opened the gate of the conventional scrap bucket, (b) is the same side schematic.

  Embodiments of the present invention will be described with reference to the drawings.

  In FIG. 1, the bucket body, the gate, and the gate opening / closing structure of the scrap bucket of the present invention are the same as those of the conventional scrap bucket shown in FIG. 4, and the same members are denoted by the same reference numerals.

  In FIG. 1, a dish-shaped gate 2, 2 having a two-part structure whose lower part opens to the left and right is disposed at the bottom of a cylindrical bucket body 1 so as to surround the outside of the lower end of the bucket body 1. Horizontal pins 4 and 4 for hooking the main winding hook 3 are attached to the upper portion of the bucket body 1. Two support pins 5 and 5 are symmetrically projected on the bucket body 1, and the intermediate portions of the L-shaped suspension links 6 are respectively rotated on the upper surfaces of the gates 2 and 2. The upper ends of the suspension links 6 and 6 are pin-coupled via the link plates 7 while being attached movably.

  One end of the auxiliary winding wire rope 9 is attached to the suspension pieces 8 and 8 fixed to the outside of the gates 2 and 2 divided into two, and the other end of the auxiliary winding wire rope 9 is fixed to the suspension hanger 10 for opening and closing the gate. To do. By hanging the hanging hanger 10 for opening and closing the gate on the auxiliary winding hook 11 and lifting it with a crane, the gates 2 and 2 of the divided structure are rotated in the left and right directions with the support pins 5 and 5 as fulcrums and the dividing plane as a boundary. It is intended to be opened.

  One end of a gate lock pin hanging chain 12 is fixed to a suspension hanger 10 for opening and closing the gate of the auxiliary wire rope 9, and the gate lock pin hanging chain 12 is a guide of a chain guide 13 fixed to the bucket body 1. It is guided by the hole 14 and hangs down by its own weight. A gate lock pin 15 for locking the gate 2 is attached below the gate lock pin suspension chain 12 along the vertical axis in the length direction of the gate lock pin suspension chain 12.

  The gate lock pin 15 is attached to the gate lock pin guides 16 and 18 provided on the upper surfaces of the mating surfaces of the gates 2 and 2 on both sides so that the gate lock pin 15 can enter and exit when the gates 2 and 2 are opened and closed. The gate lock pin guides 16 and 18 are overlapped when the gates 2 and 2 are closed, and the upper gate lock pin guide 16 is formed with a mortar-shaped guide hole 19 whose top and bottom are opened, The lower gate lock pin guide 18 is formed with a guide hole 20 coinciding with the guide 19 of the upper gate lock pin guide 16.

  The length of the gate lock pin suspension chain 12 is such that when the gates 2 and 2 are closed, the gate lock pin 15 is stopped when the gate lock pin 15 is inserted into the gate lock pin guides 16 and 18. When the open / close hanging hanger 10 is wound up, the gate lock pin 15 is pulled out of the guide holes 19 and 20 and is unlocked just before the gates 2 and 2 are opened.

A guide chain 17 may be connected to the lower end of the gate lock pin 15 in order to further reliably guide the gate lock pin 15 to the gate lock pin guides 16 and 18.

  The gate lock pins 15 are positioned in the guide holes 19 and 20 of the gate lock pin guides 16 and 18 when the gates 2 and 2 are closed, and the gate lock pins 15 are upward when the gate 2 is opened. The guide chain 17 that has been pulled out and hung at the lower end of the gate lock pin 15 is guided and hung.

  Next, the opening / closing operation of the gates 2 and 2 will be described.

  In the state where the gate 2 is closed, the gate opening / closing hanger 10 is lowered and the gate lock pin 15 is stopped at the position where it is inserted into the gate lock pin guides 16 and 18, and the gate 2 is locked. In this state, after putting a predetermined amount of scrap into the scrap bucket, the main winding hook 3 is hung on the pin 4 to support the scrap bucket and transported to the upper part of the electric furnace.

  When the upper part of the electric furnace is reached, if the auxiliary winding hook 11 hung on the gate opening / closing hanger 10 in advance is wound up, the gate lock pin hanging chain 12 is pulled and the gate lock pin 15 becomes the gate lock pin guide. 16 and 18, the lock is released, and the auxiliary winding wire rope 9 is pulled to open the gate.

  After the scrap is loaded into the electric furnace, when the gate opening / closing hanger 10 is lowered, the gates 2 and 2 are closed by their own weight. When the gate opening / closing hanger 10 is lowered, the gate lock pin suspension chain 12 is guided by the guide hole 14 of the chain guide 13 and hangs down by its own weight. The gate lock pin 15 that has been removed from the guide holes 19 and 20 is inserted into the guide holes 19 and 20 to lock the gates 2 and 2. When the guide chain 17 is attached to the gate lock pin 15, the guide chain 17 is guided into the guide holes 19 and 20, and the gate lock pin 15 is securely inserted into the guide holes 19 and 20 to lock the gate 2. Is done.

1: Bucket body 2: Gate 3: Hook for main winding 4: Pin 5: Support pin 6: Hanging link 7: Link plate 8: Hanging piece 9: Wire rope 10 for auxiliary winding 10: Hanging hanger 11 for gate opening / closing Hook 12: gate lock pin hanging chain 13: gate lock pin hanging chain guide 14: guide hole 15: gate lock pin 16: gate lock pin guide 17: guide chain 18: gate lock pin guide 19: mortar shape Guide hole 20: guide hole

Claims (4)

A scrap bucket that transports and charges scrap to an electric furnace, and is provided with a gate that opens and closes in two at the bottom of the bucket body,
The gate lock pin for locking the gate divided into two parts, the gate lock pin suspension chain is suspended from the gate opening / closing suspension hanger that opens and closes the gate,
Each of the gates is provided with a guide hole that overlaps vertically when the gate is in a closed state and can be closed and locked by inserting the gate lock pin.
The length of the chain is such that the gate lock pin is pulled out from the guide hole and unlocked by pulling the gate lock pin upward in the length direction immediately before the gate opens when the suspension hanger for opening and closing the gate is wound up. The scrap bucket has a length that allows the lock pin to be inserted into the guide hole after the gate is closed when the gate is closed.   A gate lock pin suspension chain guide having a guide hole for guiding a gate lock pin suspension chain suspended from the gate opening / closing suspension hanger is a guide hole in which the gate lock pin of the bucket body can be inserted and closed. The scrap bucket according to claim 1, wherein the scrap bucket is provided immediately above.   3. The scrap bucket according to claim 1, wherein a vertical section of the guide hole overlaid among the guide holes of the lock pin is a mortar-shaped guide hole. 4.   The scrap bucket according to claim 1, wherein a guide chain guided by the guide hole is connected to a lower end of the lock pin.

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