JPH05318093A - Molding flask device for lining by monolithic refractories - Google Patents

Abstract

PURPOSE:To automate the operations for assembling and releasing of the molding flask for lining on a molten metal housing container, more particularly the inner peripheral surface of the upper part thereof by monolithic refractories. CONSTITUTION:This molding flask device for lining of the molten metal housing container by the monolithic refractories is so constituted that molding flask blocks 10 divided to plural pieces over the entire periphery are respectively advanced and retreated in a radial direction by driving mechanisms 15 supported by a supporting frame 12, by which the blocks are expanded and contracted. Upper plate blocks 40 for applying sealings divided to plural pieces over the entire periphery are disposed on the lower side of the molding flask blocks 10 respectively movably forward and backward in the radial direction by forward and backward driving means 45 supported by the supporting frame 12. These upper plate blocks 40 for applying sealings are so constituted as to overhang to the outer side from the rear surfaces of the molding flask blocks 10 when the upper plate blocks are advanced in the radial direction. As a result, the remote operation of the molding flask blocks and upper plate blocks for applying sealings divided to a plurality is possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork apparatus for linings with an irregular shaped refractory used for performing refractory lining of a container such as a ladle for receiving molten metal, and particularly to a lining work on the upper part of the container. The present invention relates to a lining form device made of an indefinite refractory material that is configured to be easy to operate.

[0002]

2. Description of the Related Art Conventionally, in order to construct a lining of a container such as a ladle for receiving molten metal by pouring an indefinite refractory material, a mold is assembled in a target container and a required lining thickness of the container is obtained. After the pouring space is formed, an amorphous refractory material is poured into the space for molding. This formwork for lining construction is divided into a number of parts, and the divided formwork can be assembled and demolded in the target container, and it is not poured during the work of pouring the amorphous refractory after being assembled. There is a structure in which a mold is tensioned and held in the circumferential direction so as to counteract the filling pressure of a standard refractory. Examples of such a mold for forming an irregular refractory lining include, for example, Jikho Sho 61-38.
No. 759, Japanese Utility Model Publication No. 61-42675, and the like.

[0003]

In the conventional work for lining a non-standard refractory material, a lot of manpower was required for assembling and demolding the mold in the intended container. Therefore, in recent years, there has been a tendency to automate this kind of work in order to improve the work environment and promote the rationalization of the lining work.

However, in the conventional molds as described above, the molds are separated into a plurality of parts, and in order to automate the operation of assembling / demolding (disassembling), the movement of the molds during shape retention and demolding is smooth. There is a problem in that it is difficult to do.

Further, the lining portion in contact with the antioxidant for floating coating the upper surface of the molten metal housed in the ladle of molten pig iron or molten steel, etc., is more likely to be melted than other portions. Although the melted portion is repaired, it is desirable that the repair work of such a lining also be automated using a mold to promote labor saving. Therefore, it is necessary to be able to work without affecting the lower lining portion when repairing the upper inner peripheral portion of a container such as a ladle.

The present invention solves such a problem,
The lining work on the inner surface of the molten metal storage container (hereinafter simply referred to as the container) made of irregular refractory, especially the lining work on the upper inner peripheral surface of the container, can be performed smoothly, and the assembling and demolding operations of the mold are automated. It is an object of the present invention to provide a formwork device for a lining made of an indefinite refractory material having a possible structure.

[0007]

SUMMARY OF THE INVENTION The present invention is a formwork apparatus for a lining made of an amorphous refractory for a molten metal storage container, wherein an upper formwork unit corresponding to the upper part of the molten metal storage container has an entire circumference. A plurality of divided form blocks are configured so that they can be expanded and contracted in a radial direction by a drive mechanism supported by a support frame located inside, respectively. A plurality of upper construction sealing plate blocks are respectively arranged so as to be able to advance and retreat in the radial direction by advancing / retreating drive means supported by the support frame, and the upper construction sealing plate blocks are the molds when they are advanced in the radial direction. The frame block is configured to project outward from the lower surface of the frame block.

[0008]

In the lining form device according to the present invention constructed as described above and having an irregular shaped refractory, a lining work container having a size corresponding to the size of the lining construction container is loaded into the container with the form part contracted, and then the upper mold is formed. The center of the upper mold unit is aligned with the center of the container by positioning it concentrically with the container in another part of the mold unit attached to the lower part of the frame unit and installing it horizontally. After that, the upper formwork unit operates the attached drive mechanism to move the divided formwork blocks together to the required positions all at once, so that the required annular space is formed in the inner peripheral portion of the container. The formwork is assembled so that the lining work can be performed. After that, if each upper construction seal plate block is moved forward by operating the link mechanism by the advancing / retreating drive means, the upper construction seal plate is projected from the lower surface of the form block into the annular space portion, and the annular space is moved up and down. Will be shut off. Therefore, if the irregular refractory is poured from the upper portion of the annular space in this state, the irregular refractory filled with the upper construction seal plate does not drop and the lining work can be safely performed. Further, at the time of demolding, if the mold block and the upper construction sealing plate block are retracted by the reverse operation to the above, it is possible to carry out the demolding without shrinking the lining layer.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a lining form device using an amorphous refractory of the present invention will be described below with reference to the drawings. In this embodiment, a retractable middle frame unit and a lower frame unit are integrally attached.
FIG. 1 is a vertical cross-sectional view of a lining mold device of the present invention used for lining a ladle, in which a mode of use of an upper construction seal plate is also shown. FIG. 2 is a plan view of FIG. FIG. 3 is a sectional view taken along the line III-III of FIG.
FIG. 4 is a plan view showing a connection state of side plates of each mold block of the upper mold unit, (a) is a horizontal sectional view taken along the line IV-IV of FIG. 1, and (b) is a slide holding mechanism. FIG.
FIG. 5 is a horizontal cross-sectional view taken along line V of FIG. 1, showing a state where the upper construction seal plate is fully opened. FIG. 6 is a view showing a mode in which the link mechanism supporting the upper construction seal plate block is different.

In these drawings, the lining formwork apparatus of the present invention includes an upper formwork unit 1, a lower formwork unit 2, and an intermediate part form which is interposed between these and is formed in multiple stages as necessary. Frame unit 3 and the upper formwork unit 1
And the unit of the upper construction seal plate 4 attached to the. In this specific example, the middle part formwork unit 3 is composed of one stage. The upper, lower, middle, and lower formwork units 1, 3, 2 are integrally connected by a frame formed inside.

The upper formwork unit 1 has a reinforcing member of a required size inside each of the side plates 11 divided into a plurality (8 in the specific example) of the entire circumference (hereinafter, the side facing the center is referred to as the inside).
A plurality of formwork blocks 10 which are reinforced by 11 'and are made to move back and forth in a radial direction by a drive mechanism 15 to be described later so that the whole can be expanded and contracted, and a plurality of sets (two sets in a specific example).
The drive mechanism 15 and the frame 12 that supports them.

In each of the formwork blocks 10, as shown in FIG. 3, a retracting arm 13 is pivotally attached to one end of a reinforcing member 11 'attached to the inside of the side plate 11 by a fulcrum pin 13'.
This retractable arm 13 is a bearing 14 'that attaches to the frame 12.
, 14 'are fixed to the swivel shaft 14 at their base ends, and the side plates 11 are connected so as to be advanced and retracted in the radial direction by the rotation of the swivel shaft 14. Then, the free end of the side plate 11 in the direction opposite to the connecting part with the retracting arm 13 is overlapped with the side plate 11 of the adjacent form block 10 as shown in FIG. It is held in the state. This slide holding mechanism 17 is inside the free end portion of the side plate 11, and as shown in FIG. 4B, a middle portion is pivotally supported by a support bracket 17a fixed to the side plate 11.
The clip roller 17d supported by the tip of the U-shaped roller holder 17c is attached to the rod 17 at the rear end of the roller holder 17c.
It is configured so that the free end of the side plate 11 is prevented from being lifted by being pressed against the inner surface of the side plate 11 of the overlapping portion by the elastic force of the spring 17f interposed between the side surface of the support bracket 17a via e. ing. Further, at the inner center position of each side plate 11 thus configured, the vibrator 18
Are attached respectively.

The drive mechanism 15 for moving the mold block 10 forward and backward in the radial direction is movably supported in a horizontal state on an intermediate frame 12 'of the frame 12, as shown in FIGS. A rack 15 provided with a required arrangement on the bending member 15a.
b and the gear 15c fixed to the swivel shaft 14 are meshed with each other, and the hydraulic cylinders 16 and 1 are respectively attached to both ends of the bending member 15a.
6'actuating rod is connected and its hydraulic cylinder 16 or 16 '
By moving the bending member 15a by the rack 15b
The side plates 11 are simultaneously advanced and retracted by rotating each gear 15c via the. Incidentally, the curved member 15a
A linear actuator such as an electric cylinder can be used in place of the hydraulic cylinders 16 and 16 'for operating the. Also, the curved member
15a is supported by a plurality of slide bearings 15d arranged on the intermediate frame 12 'of the frame 12 so as to be movable in a fixed position. The drive mechanism 15 can drive the rack 15b attached to the bending member 15a and the gear 15c on the swivel shaft 14 into meshing drive between the chain and the sprocket, but is not limited thereto.

Such an upper formwork unit 1 is further provided with a top plate 19 on the upper side, and the top plate 19 has a structure which can be used as a workbench. Further, as shown in FIG. 1 and FIG. 2, suspension brackets 19a serving as transport suspension means of this formwork apparatus are fixed at a plurality of positions on the top plate 19 at positions where the overall balance can be maintained. .. Also, this top plate
The peripheral portion 19 'of 19 is formed as an inclined surface, and is made to be convenient for performing the role of a chute when pouring the irregular-shaped refractory.

The upper construction seal plate 4 attached to the lower side of the upper formwork unit 1 has a plurality of entire circumferences (8 in the specific example).
2 sets of brackets 12 in which the upper construction seal plate block 40 divided into
Operation link 43A with the backbone of each being supported by axis 46 in a
And a link mechanism 43 configured by a connecting link 43B, and an advance / retreat drive means 45 for operating them are supported so as to be able to advance and retract in the radial direction. Further, each of the upper construction seal plate blocks 40 is based on a support member 42 in which a large number of receiving pieces 41 formed of an elastic material such as a narrow leaf spring are arcuate at a required pitch and the front edge thereof is arcuate. The receiving end 41 is provided so as to be able to follow the unevenness of the inner peripheral surface of the container 5 to be lined with its end supported, and the receiving piece 41 is inclined obliquely downward and the front end is rounded. Piece 41 and its receiver
A flexible seal plate part 41A is formed by attaching a water-repellent sheet (not shown) on the upper surface of 41, and this seal plate part 41A has a structure that prevents the falling of the irregular refractory during construction. Has been done.

The advancing / retreating drive means 45 has a downward operating rod 45a 'of an intermediate supporting hydraulic cylinder 45a supported by the upper top of the frame 12 of the upper formwork unit 1 at one end of each operating link 43A. It is configured to be connected via a shaft 45b. The other end of the operation link 43A is connected to the mounting bracket 47 inside the upper construction seal plate block 40 by a pin 47a. The other end of the connecting link 43B, one end of which is connected to the pin 44a at the tip of the bracket 12a attached to the frame 12, is the above-mentioned seal plate block.
It is connected to the rear end of the mounting bracket 47 of 40 with a pin 47b.

Further, the plurality of upper construction sealing plate blocks 40 of the upper construction sealing plate 4 constructed as described above are attached to the operation link 43A and the frame 12 so as not to interfere with each other when contracted, as shown in FIG. The two types of brackets 12a having different sizes and shapes are alternately arranged, and the strokes of the connecting link 43B and the hydraulic cylinder 45a corresponding to each of the above-mentioned upper construction seal plate blocks 40 are also short and short.
Different types are used so that the amount of movement of the upper construction seal plate block 40 by the advancing / retreating drive means 45 and the height difference at the contraction position can be made. The upper construction seal plate block 40, the link mechanism 43, and the advancing / retreating drive means 45 have some differences in size and shape, but there is no difference in the basic structure. There is.

The lower formwork unit 2 in FIG. 1 is of a required size so as to have an inverted frustoconical shape around the inner bottom portion corresponding to the inner size of the lining layer formed inside the intended container 5. A fixed side plate 22 is fixed to the entire circumference by being reinforced and supported inside by a base frame body 21. A plurality of brackets 21 'projecting in the center direction from the base frame 21 supporting the fixed side plate 22 is attached to the inner lower part thereof with a support frame 23 formed in a cross beam shape, and by this support frame 23 The frames 12 and 32 of the upper mold unit 1 and the intermediate mold unit 3 are vertically supported. The height of the fixed side plate 22 is preferably set to a height within a range in which the contact resistance with the lining surface at the time of demolding does not increase. Further, a plurality of centering devices (not shown) are attached outward to the lower mold unit 2 so that they can be operated by, for example, a hydraulic cylinder for centering. Furthermore, the support frame 23 or the base frame 21
There are provided a plurality of jacks (not shown) for leveling that can be operated downward.

The intermediate formwork unit 3 in FIG. 1 is a telescopic drive attached to a support frame 32 in which a formwork block 30 whose entire circumference is divided into a plurality of (four in the specific example) is erected inside. It is provided so as to be movable back and forth in the radial direction via means 33. The formwork block 30 has a reinforcing member 31 'on the inside.
The side plate 31 is provided with rigidity and the height dimension of the side plate 31 covers the space between the side plate 11 and the fixed side plate 31 of the upper and lower mold units 1 and 2 in a fixed position. Formed to dimensions. Therefore, although the number of steps is one in the specific example, if the dimension becomes longer, a plurality of steps will be formed.

The expansion and contraction driving means 33 for moving the form block 30 back and forth is provided in two stages. The first-stage drive means 33A has bell crank links 34, 34 axially supported by brackets 33a, 33b provided with upper and lower mounting seats at the center of the rear of the side plate 31, respectively, and one end of each of them is connected via a shaft. And the other ends of the bell crank links 34, 34 are connected to a shaft attached to the movable frame 35, and a hydraulic cylinder 36 for driving is attached to the movable frame 35. The tip of the piston rod 36 'is connected to the intermediate portion of the shaft connecting the upper bell crank links 34 to each other.

The second-stage driving means 33B comprises a support frame 32
Arms 37a and 37, whose base ends are fixed to the operating shafts 37 and 37, by bearings that are arranged in two upper and lower stages on the right side and at required intervals.
The tip of a is pin-connected to a bracket attached to the movable arm 35, and when the arms 37a, 37a are normally kept parallel to each other as shown in the left side of FIG. Are linked so that they are located at the target position of the lining, the base end of a link 38 is fixed to the middle of the operating shaft 37 supported on the bearing side, and the other end of this link 38 is an end portion of the support frame 32. Is connected to the end of a piston rod 39 'of a hydraulic cylinder 39 which is supported by a pin, so that the hydraulic cylinder 39 can perform a second-stage retracting operation.

The mold block 30 which is expanded and contracted by the expansion and contraction driving means 33 as described above, when assembled as a mold, sees in a plane state, for example, a portion which is expanded and contracted in the X-axis direction and a portion which is expanded and contracted in the Y-axis direction. It is preferable to attach a mechanism that allows the portion to be expanded and contracted to engage with each other at the end of the reinforcing member so as to maintain a desired outer shape and not to be displaced. Of course, the joint holding structure at the end of the side plate 31 of the mold block 30 can be arbitrarily changed according to the number of divisions in the circumferential direction.

The hydraulic oil for the hydraulic equipment incorporated in the mold units 1, 3 and 2 of the upper, middle and lower parts of the mold device is supplied from a hydraulic unit (not shown) installed outside the mold device. It is preferable that the programs can be sequentially operated by a preset program via the control device. Also, for the operation of the centering device and the jack for setting the horizontal state, for example, in combination with auxiliary position adjustment by an overhead crane, an operator can operate the product at the time of loading so that the formwork device can be installed in the correct position. Is preferred. Of course, an optical detecting means may be additionally provided for remote control. Further, the hydraulic unit can be incorporated in the formwork device as required.
Furthermore, as the actuating device such as the hydraulic cylinder, other electric linear actuators can be used.

Next, the operation for repairing the upper inner peripheral wall of the container by the lining frame device of the present invention will be described. In order to carry it into a container to be lined with an amorphous refractory, the mold blocks 1 of the upper mold unit 1 and the middle mold unit 3 which are preassembled are assembled.
In a state in which 0 and 30 are contracted, the suspension bracket 19a is slung and suspended by a heavy machine such as an overhead crane, and the suspension bracket 19a is carried into the lined container 5. After that, the centering device and the jack attached to the lower formwork unit 2 are operated to adjust the horizontalness and centering of the entire formwork device.

The intermediate form unit 3 when loaded into the container 5 is an extension / contraction drive means attached to each form block 30.
It is pulled inward by 33 and contracted. Each form block 30 in the middle part has its own expansion and contraction drive means 33.
Is constituted by the first-stage driving means 33A and the second-stage driving means 33B as described above, and is in the state of FIG. 7 in the contracted state, so that it does not hinder the existing lining surface. .. Further, since a large space is formed between the upper mold block 10 and the intermediate mold block 30, there is no obstacle to the forward / backward movement of the upper construction seal plate block 40.

When the upper formwork unit 1 is in the contracted state, each formwork block 10 is retracted from the predetermined position a (shown by the chain double-dashed line) by the drive mechanism 15 as shown in FIG. In order to move each form block 10 forward and move it to a predetermined position, two sets of left and right drive mechanisms 15 are operated. That is, one hydraulic cylinder of each drive mechanism 15 in the drawing
By simultaneously moving 16 ′ forward and simultaneously moving the other hydraulic cylinder 16 backward, the bending members 15 a are slid in the clockwise direction in the figure, and the bending members 15 a are rotated.
The gears 15c meshing with the rack 15b arranged on the a are simultaneously rotated in the counterclockwise direction in the figure, and the pull-in arm 13 is rotated by the gears 15c via the swivel shaft 14, thereby Tip of retractable arm 13 and fulcrum pin 13 '
The side plate 11 connected by is advanced. At this time, each formwork block 10
The side plates 11 are connected to each other at their free ends by a slide holding mechanism 17 in a sliding connection structure with the operation side by the retracting arm 13 of the adjacent side plates 11, so that the sliding plates are entirely slid at each overlapping portion. The lining space is constructed by unfolding in the radial direction all at once.

Next, the upper construction sealing plate block 40 is moved forward to the lower side of each mold block 10 of the upper mold unit 1. The forward movement of the upper construction seal plate block 40 is shown in FIG. 5 with different movement amounts, for example, the upper construction seal plate block 40 having a large movement amount (four groups in the X-axis direction and the Y-axis direction in FIG. 5). By moving the hydraulic cylinder 45a of the advancing / retreating drive means 45 to move the operating rod 45a 'from the position a to the position b of 9, the operation link 43A of the link mechanism 43 moves in the clockwise direction in the figure with reference to the shaft 46. Is rotated to. Then, the connecting link 43B follows the operation link 43A of the link mechanism 43 and is rotated about the connecting portion by the pin 47b on the bracket 12a as a base point, and the upper construction seal plate block 40 is advanced in a horizontal state. Next, by moving the upper construction sealing plate block 40 (four sets arranged diagonally in FIG. 5) having a small movement amount in the same manner as described above, the entire upper construction sealing plate block 40 is projected over the entire circumference. ..

[0028] The upper construction seal plate block 40 that is advanced
Is a flexible seal plate portion formed by a large number of receiving pieces 41 arranged on the outer side thereof and a sticking support sheet on the upper surface thereof.
When 41A moves forward and reaches a state of contacting the inner wall surface of the container, since each receiving piece 41 is formed of an elastic material such as a leaf spring, the receiving piece 41 is displaced in accordance with the inner wall surface and the annular space portion is formed. The seal plate portion 41A vertically shuts off, and because of the lining, the irregular-shaped refractory is received by the seal plate portion 41A and can be prevented from falling. Of course, the sealing plate portion 41A of the upper construction sealing plate block 40 can also function as a mold when lining. Supply of hydraulic oil to the hydraulic cylinders 16 and 16 'in the drive mechanism 15 for each forward / backward operation of each form block 10 and each upper construction seal plate block 40 of the upper form unit 1 and the hydraulic cylinder 45a of the advance / retreat drive means 45. By locking the state, the reaction force of the filling pressure can be received.

Next, the demolding operation will be described. In the upper mold unit 1, the mold blocks 10 are simultaneously retracted by performing an operation reverse to the forward movement of the mold blocks 10, and the mold blocks can be removed from the lined refractory wall.
That is, in order to move the rack 15b of the drive mechanism 15,
One hydraulic cylinder 16 is moved forward in the opposite direction to the previous one, and at the same time, the other hydraulic cylinder 16 'is moved backward. Then the curved member
When 15a is moved by a predetermined distance in the direction of arrow B in FIG. 3, the rack 15b on the curved member 15a causes the gear 15c to rotate in the direction of arrow C, and the rotation of the swivel shaft 14 attached to the gear 15c. The side plate 11 is pulled inward through the pull-in arm 13, and is retracted from the position a indicated by the two-dot chain line to be released from the lining layer as shown in FIG. At this time, since the free end of each side plate 11 is sandwiched between the clip roller 17d of the slide holding mechanism 17 and the operating end of the side plate 11 that is always adjacent to the side plate 11, the side plate 11 is pulled in without floating.

In the upper construction seal plate 4, each upper construction seal plate block 40 operates the advancing / retreating drive means 45 in the reverse order of the above-mentioned mold assembly to perform the demolding (retracting) operation. During the demolding operation of each of the upper construction seal plate blocks 40, the four upper construction seal plate blocks 40 that are diagonally opposed to each other are first retracted, and then the four upper construction seal plate blocks in the X-axis direction and the Y-axis direction. If the block 40 is retracted, it is contracted as shown in FIGS. 6 and 10 and is housed under the upper mold unit 1.

After the upper mold unit 1 and the upper construction seal plate 4 are demolded in this way, they are hung by a crane via the hanging bracket 19a on the top plate 19 and carried out from the inside of the container 5. Can be made

In the above description, the upper mold unit 1 and the intermediate mold unit 3 and the lower mold unit 2 are integrally connected. However, the intermediate mold unit 3 and the lower mold unit 2 are connected to each other. Alternatively, if a dedicated underframe equipped with a level adjusting mechanism (jack) and a centering device at the required height is attached to the lower surface of the upper formwork unit 1 as described above, a molten metal such as a ladle is stored as described above. It can be used exclusively for repairing a melt-damaged portion or the like generated in the lining portion where the upper surface of the molten metal and the antioxidant that floats and coats the upper surface of the container contact each other. Further, the middle formwork unit 3 and the lower formwork unit 2 can be detached from the upper formwork unit 1 so that they can be replaced with the dedicated underframe. When the upper construction seal plate 4 is not used, the upper construction seal plate block 40 is not used when the upper construction seal plate 4 is used in combination with the intermediate and lower formwork units (state described above). Keeping the contracted state does not hinder the operation of the intermediate form unit 3.

In the above description, the shape of the container used is an inverted conical shape such as a ladle, but the formwork apparatus of the present invention is not limited to this, and molten metal is used. This can be dealt with by changing the outer shapes of the formwork and the construction seal plate according to the shape of the storage container.

[0034]

As described above, in the lining formwork apparatus of the present invention, the upper formwork unit and the upper construction seal plate that is expandable and contractible below the upper formwork unit are divided into a plurality of blocks.
Moreover, these formwork blocks and seal plate blocks are configured to be remotely controllable, and the upper construction seal plate has the function of sealing according to the state of the inner wall surface of the container in the expanded position, so many conventional types are used. Significant labor saving in assembling / demolding the formwork and loading / unloading into / from the container, which required a worker, and significantly contributing to the automation of repair work without disturbing the lower part during repair work on the upper part. it can.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a lining mold device of the present invention used for lining a ladle, in which a mode when an upper construction seal plate is used is also shown.

FIG. 2 is a plan view of FIG.

FIG. 3 is a sectional plan view taken along the line III-III of FIG.

FIG. 4 is a plan view showing a connection state of side plates of each form block of the upper form unit, (a) a plan sectional view taken along the line IV-IV of FIG. 1, and (b) showing a slide holding mechanism. FIG.

5 is a cross-sectional view taken along line V of FIG. 1, showing a state in which the upper construction seal plate is fully opened.

FIG. 6 is a view showing a mode in which a link mechanism that supports an upper construction seal plate block is different.

FIG. 7 is a diagram showing an aspect in which the mold block of the intermediate mold unit is in the contracted position.

FIG. 8 is a plan view showing a state where the formwork block of the upper formwork unit is retracted by the operation of the drive mechanism.

FIG. 9 is a view showing an operation mode of the upper construction sealing plate block.

FIG. 10 is a plan view showing a state in which the upper construction sealing plate block is contracted.

[Explanation of symbols]

 1 Upper Formwork Unit 2 Lower Formwork Unit 3 Middle Formwork Unit 4 Upper Construction Seal Plate 5 Container 10 Upper Formwork Block 11, 31 Side Plate 11 'Reinforcing Member 12 Frame 13 Retracting Arm 13' Support Pin 14 Swivel Axis 15 Drive mechanism 15a Bending member 15b Rack 15c Gear 16,16 'Hydraulic cylinder 17 Slide holding mechanism 17c Roller holder 17d Clip roller 18 Vibrator 19 Top plate 19' Peripheral part 19a Suspension bracket 22 Fixed side plate 23, 32 Support frame 30 Intermediate part Form block 33 Extension drive means 33A First stage drive means 33B Second stage drive means 34 Bell crank link 34b Connection link 35 Movable frame 36, 39, 45a Hydraulic cylinder 37 Operation shaft 37a Arm 38 Link 40 Top Mounting brackets factory seal plate blocks 41 bearing piece 41A sealing plate 42 receiving piece support member 43 linkage 43A operating link 43B connecting link 45 advancing drive means 47 the upper construction sealing plate block

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshitaka Nakazawa Yoshitaka Nakazawa 1-3-1, Niihama, Arai-cho, Takasago, Hyogo Prefecture Harima Ceramic Co., Ltd. (72) Inventor Hideo Ushizawa 5-3 Tokai-cho, Tokai-shi, Aichi Suga Co. In tech

Claims (4)

[Claims] 1. A mold apparatus for lining of a molten metal storage container using an indefinite refractory material, wherein an upper mold unit corresponding to the upper portion of the molten metal storage container has a whole circumference divided into a plurality of molds. Each block has a structure in which it can be moved forward and backward in the radial direction by a drive mechanism supported by a support frame located inside, and can be expanded and contracted. The seal plate blocks are respectively arranged so as to be able to advance and retreat in the radial direction by advancing and retracting drive means supported by the support frame, and the upper construction seal plate blocks are stretched outward from the lower surface of the form block when being advanced in the radial direction. A formwork device for lining with an irregular shaped refractory, which is configured to be put out. 2. The upper mold unit includes a mold block whose entire circumference is divided into a plurality of parts, and inside and out of each of the mold blocks, all the mold blocks are simultaneously advanced and retracted in a radial direction to expand and contract. The mold device for lining with an irregular refractory material according to claim 1, further comprising the drive mechanism and a top plate that covers an upper surface. 3. The mold block of each of the upper mold units is reinforced with a reinforcing member behind a side plate, and one end of the reinforcing member is provided at a tip end of a retractable arm with a swivel shaft provided on the support frame side. The free end portion of the side plate is slidably held by a slide holding mechanism in the vicinity of the pull-in arm connecting portion of the other adjacent side plate, and the pivot end to which the proximal end of the pull-in arm is fixed is fixed. The mold device for lining with an indefinite refractory material according to claim 1 or 2, which is configured to be rotated by the drive mechanism to be expanded and contracted. 4. The upper construction seal plate block is flexible in that a large number of narrow elastic plates are supported on the outer peripheral portion of a supporting member at a base end portion at a predetermined interval and a sheet is provided on the upper surface. A seal plate portion is provided, and is supported horizontally in a horizontal state by a link mechanism that is pivotally supported by a bracket inside the support frame behind the support member, and one end of the link mechanism is provided on the upper side of the support frame. It is configured to be connected to a driving means, and when the advancing / retreating driving means is operated to move forward, the sealing plate portion is projected from the inside to the outside of the side plate of the upper formwork unit and is in contact with the lower surface of the upper formwork block. 2. The formwork apparatus for lining with an irregular refractory material according to claim 1.