JPH0321806Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a slag removal filter impacting device in a continuous casting machine.

BACKGROUND TECHNOLOGY In order to improve the quality of slabs, billets, and other slabs that are pulled out from molds, conventionally, a plurality of upper molds arranged side by side in the left-right direction are held on an upper mold holder having a horizontally long rectangular shape in plan view. A frame body that surrounds the entire opening of the plurality of upper molds and has both side parts protruding outward from both sides of the upper mold holder is mounted on the frame body, and a frame body is placed on the front and rear frame members of the frame body for each upper mold. A continuous casting apparatus is known in which a plurality of slag removal filters are arranged and held together via a pair of front and rear fittings.

Problems to be Solved by the Invention In the continuous casting apparatus described above, in the early stage of pouring molten metal into a mold, the molten metal that comes into contact with the filter solidifies, causing the filter to become clogged. Therefore, in order to prevent the filters from clogging, conventionally, workers hit the filters with iron rods or hammers.
There was a problem that this work was troublesome.

The purpose of this invention is to provide a slag removal filter impact applying device for a continuous casting machine that solves the above-mentioned problems.

Means for Solving the Problems The slag removal filter impact applying device in a continuous casting apparatus according to this invention is provided with a plurality of upper molds arranged in a row in the left and right direction, and is mounted on an upper mold holder having a horizontally long rectangular shape in plan view. , a frame body that surrounds the entire opening of a plurality of upper molds and has both sides protruding outward from both sides of the upper mold holder is mounted, and a frame body is placed on the front and rear frame members of the frame body for each upper mold. In a continuous casting machine in which a plurality of slag removal filters are fixed together via a pair of front and rear mounting brackets, the front frame member is raised and lowered on both sides of the upper mold holder at a position directly below both ends of the front frame member. The fluid pressure cylinders for raising and lowering the rear frame member are mounted directly below both ends of the rear frame member, and the fluid pressure cylinders for raising and lowering the rear frame member, which are driven alternately with the fluid pressure cylinders for raising and lowering the front frame member, are mounted facing upward. It is characterized by being attached.

Function The slag removal filter impact applying device in the continuous casting apparatus according to this invention has fluid pressure cylinders for raising and lowering the front frame member mounted upward on both sides of the upper mold holder at positions directly below both ends of the front frame member. At the same time, hydraulic cylinders for raising and lowering the rear frame member are installed directly below both ends of the rear frame member, facing upward and driving alternately with hydraulic cylinders for raising and lowering the front frame member. At the initial stage of injection, the molten metal that comes into contact with the filter solidifies, but at this time all the filters are swung by alternately driving the front frame member lifting and lowering fluid pressure cylinders and the rear frame member lifting and lowering hydraulic cylinders. At the same time, by alternately dropping the front frame member and the rear frame member onto the upper frame holder, it is possible to apply a shock to all the filters at once.

Embodiments Hereinafter, embodiments of this invention will be described with reference to the drawings. In the following explanation, "top" refers to the upper side of Figure 1, "bottom" refers to the lower side of the same figure, and "left" refers to the left side of the same figure.
"Right" refers to the right side of the figure, "front" refers to the lower side of the figure, and "back" refers to the upper side of the figure.

The continuous casting apparatus includes an upper mold holder 2 which is provided at a predetermined height position and holds a plurality of upper molds 1 arranged side by side in the left-right direction, and an elevating body 3 arranged below the upper mold holder 2. , a plurality of bottom molds 4 corresponding to each upper mold 1 are held, and are arranged above a bottom mold holder 5 and an upper mold holder 2 provided on the elevating body 3, and the molten metal is transferred to a holding furnace, a ladle, etc. (not shown) to each upper mold 1
It is equipped with a gutter 6 extending in the left and right direction for guiding. A mold is constituted by a top mold 1 and a bottom mold 4 that correspond to each other.

The upper mold holder 2 has a horizontally long rectangular shape when viewed from above, and is supported by a support member (not shown). The upper mold 1 has a rectangular cylindrical shape with an open top and bottom, and has a cooling water passage 1a formed therein. The bottom mold holder 5 includes a horizontally long rectangular substrate 5a and a plurality of bottom mold mounting members 5b provided on the substrate 5a at intervals in the left-right direction. A plurality of molten metal injection holes 6a are formed at the bottom of the gutter 6 to inject molten metal into each upper mold 1, respectively.

A frame 7 is mounted on the upper mold holder 2 and surrounds the entire openings of the plurality of upper molds 1 and has both sides protruding outward from both sides of the upper mold holder 2. The front frame member 7a of the frame body 7 is loosely held between a pair of front and rear pins 8 provided on both sides of the upper surface of the upper mold holder 2, respectively. Between the front and rear frame members 7a and 7b of the frame body 7, a plurality of slag removal filters 9 arranged for each upper die 1 are fixed via a pair of front and rear mounting fittings 10, respectively. Each filter 9 is
It consists of a filter element mounting frame 9a disposed directly above the upper opening of the corresponding upper die 1, and a filter element 9b made of glass wool attached to the mounting frame 9a.

On both sides of the upper mold holder 2, front frame member lifting hydraulic cylinders 11 are attached to positions directly below both ends of the front frame member 7a, and hydraulic cylinders 11 for raising and lowering the front frame member are attached to positions directly below both ends of the rear frame member 7b. , and a rear frame member elevating fluid pressure cylinder 12 which is driven alternately with a front frame member elevating fluid pressure cylinder 11 are provided.

The fluid pressure cylinder 11 for raising and lowering the front frame member and the fluid pressure cylinder 12 for raising and lowering the rear frame member are used at the initial stage of molten metal injection, that is, when the molten metal sent from the holding furnace etc. to the gutter 6 flows into the upper mold 1 from the flow hole 6a. When the injection starts, the cylinder drive control device (not shown) controls the drive as follows. After the rod of either the upper frame member elevating fluid pressure cylinder 11 or the rear frame member elevating fluid pressure cylinder 12, for example the front frame member elevating fluid pressure cylinder 11, is advanced, it is rapidly retracted. . By this operation of the fluid pressure cylinder 11, the front frame member 7a is pushed up to a position above the upper mold holder 2, and then falls onto the upper mold holder 2. That is, all the filters 9 swing around the rear frame member 7b, and all the filters 9 are subjected to impact due to falling onto the upper die holder 2.

Next, the other rear frame member elevating fluid pressure cylinder 1
After the second rod was advanced, it was rapidly withdrawn. By this operation of the cylinder 12, the rear frame member 7b is pushed up to a position above the upper mold holder 2, and then falls onto the upper mold holder 2. That is, all the filters 9 swing around the front frame member 7a, and all the filters 9 are subjected to impact due to falling onto the upper die holder 2.

The above-mentioned operation of the front frame member elevating fluid pressure cylinder 11 and the rear frame member elevating fluid pressure cylinder 12
The above operations are repeated alternately for a predetermined period of time, and rocking and impact are applied to all filters 9 at predetermined time intervals.

When molten metal is sent to the gutter 6 from a holding furnace, etc.
Molten metal falls onto each filter element 9b through the flow holes 6a. At the start of molten metal injection, the molten metal in contact with the filter element 9b solidifies, but as described above, both the fluid pressure cylinders 11 and 12 repeatedly apply rocking and impact to all the filters 9. This prevents the filter element 9b from clogging, so
Molten metal passes through each filter element 9b and is injected into each upper mold 1. When molten metal begins to be injected into each upper mold 1, the elevating body 3 is gradually lowered, and along with this, all the bottom molds 4 are lowered. The molten metal injected into each upper mold 1 is
While being cooled and partially solidified, it is pulled out as the bottom mold 4 descends.

Effects of the invention According to the slag removal filter impact applying device in the continuous casting apparatus of this invention, at the initial stage of pouring molten metal into the mold, the molten metal that comes into contact with the filter solidifies. By alternately driving the hydraulic cylinder for raising and lowering the rear frame member, all the filters are swung, and the front frame member and the rear frame member are alternately dropped onto the upper frame holder, and all the filters are moved at once. Since it is possible to apply a shock to the filter, clogging of the filter can be automatically prevented.
The burden on workers is reduced.

[Brief explanation of the drawing]

The drawings show a first embodiment of the invention, with FIG. 1 being a partially cutaway front view and FIG. 2 being a plan view. 1... Upper mold, 2... Upper mold holder, 7... Frame,
7a... Front frame member of the frame body, 7b... Rear frame member of the frame body, 9... Slag removal filter, 10... Mounting bracket, 11... Fluid pressure cylinder for lifting and lowering the front frame member, 1
2...Fluid pressure cylinder for lifting and lowering the rear frame member.

Claims (1)

[Scope of utility model registration request] A plurality of upper molds 1 arranged side by side in the left-right direction are held on an upper mold holder 2 that is horizontally rectangular in plan view, and an upper mold holder 2 that surrounds the entire opening of the plurality of upper molds 1 and has both sides thereof is an upper mold holder 2. A frame body 7 protruding outward from both sides of the frame body 7 is mounted, and the front and rear frame members 7 of the frame body 7
In a continuous casting machine in which a plurality of slag removal filters 9 arranged for each upper die 1 are secured to each other via a pair of front and rear mounting brackets 10 at a and 7b, a plurality of slag removal filters 9 are mounted on both sides of an upper die holder 2. , front frame member 7a
Fluid pressure cylinders 11 for raising and lowering the front frame member are mounted upwardly at positions directly below both ends of the rear frame member 7b, and directly below both ends of the rear frame member 7b.
A slag removal filter impact applying device characterized in that a front frame member elevating fluid pressure cylinder 11 and a rear frame member elevating fluid pressure cylinder 12 which are driven alternately are respectively attached upward.