JP2015111018A - Metal mold for hexagonal brick, hexagonal brick molding method, and hexagonal brick designing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hexagonal brick metal mold, a hexagonal brick molding method, and a hexagonal brick designing method capable of molding a plurality of types of hexagonal bricks appropriate for shapes of kilns while suppressing the number of dedicated parts to the minimum.SOLUTION: Provided is a hexagonal brick metal mold for molding a hexagonal brick having a hexagonal truncated pyramid shape and including upper and lower surfaces of an isosceles trapezoid shape arranged in parallel to each other; a pair of upward inclined surfaces connected to both sides of the upper surface and a pair of downward inclined surfaces connected to both sides of the lower surface; and a kiln inner end surface and a kiln outer end surface of a hexagonal shape each connected to the upper surface, the lower surface, the paired upward inclined surfaces, and the downward inclined surfaces. The hexagonal brick metal mold includes: a first flat member 21 and a second flat member 22 arranged in parallel to each other for molding the upper surface and the lower surface, respectively; a first side surface member 23 and a second side surface member 24 including V-grooves 230 and 240, respectively for molding the upward inclined surfaces and the downward inclined surfaces; and a kiln inner end surface member 26 and a kiln outer end surface member 25 for molding the kiln inner end surface and the kiln outer end surface of the hexagonal shape, respectively.

Description

  The present invention relates to a hexagonal brick mold, a hexagonal brick molding method, and a hexagonal brick design method, and relates to a hexagonal brick used as a refractory lining for a kiln or a ladle.

In steelworks, various kilns such as blast furnaces and converters are used. Moreover, in order to convey hot metal between each kiln, the ladle and other heat-resistant containers for conveyance are used. In these kilns and ladles, a refractory lining is formed inside the iron shell to protect the iron shell forming the outer shell from the high heat of the hot metal inside.
As such a refractory lining, a refractory brick is used.

Conventional refractory bricks generally have a quadrangular frustum shape whose end surfaces on the furnace inner surface side and the furnace outer surface side are rectangular.
When stacking such square pyramid-shaped refractory bricks, the refractory bricks of the same level are closely arranged, the upper surface is flattened, and the refractory bricks of the next level are arranged thereon. The refractory lining using such a pyramid-shaped refractory brick is formed so as to form a so-called brick joint in which the furnace inner surface side and the furnace outer surface are alternately stacked with rectangles.

On the other hand, the applicant of the present application has proposed a refractory brick having a hexagonal frustum shape in which end face shapes on the furnace inner surface side and the furnace outer surface side are hexagonal shapes (see Patent Document 1).
In Patent Document 1 described above, the hexagonal brick has a hexagonal shape on the inner side and outer side of the furnace, and the height (thickness) is constant from the inner side of the furnace to the outer side of the furnace. The length in the circumferential direction of the furnace) is formed in a tapered shape (elongated isosceles trapezoidal shape) that extends from the inside of the furnace toward the outside of the furnace.
On both sides of the hexagonal brick, an upward slope along the upper surface and a downward slope along the lower surface are formed, and the ridgeline to which each is connected is the maximum contour in the planar shape of the hexagonal brick. The upward slope and the downward slope are each formed in a long and narrow strip shape having the same width from the inside of the furnace to the outside of the furnace, and the four slopes have the same dimensions.

When stacking such hexagonal bricks, the upper and lower layers are arranged in a nested manner so that the downward slope of the upper layer is in close contact with the upward slope of the lower layer. As a result, a so-called honeycomb shape due to the end face shape of the hexagonal brick appears on the furnace inner surface side and the furnace outer surface side of the refractory lining formed of hexagonal brick.
By forming a refractory lining with such hexagonal bricks, the lower layer and upper layer of the hexagonal brick mesh with each other on each slope, improving mutual connectivity and building work. It is also possible to improve the performance.

Japanese Patent No. 5037725

By the way, when the hexagonal brick as in Patent Document 1 described above is installed in the circumferential direction in a cylindrical kiln, the taper angle in the planar shape of the hexagonal brick (center angle α in the core) is arranged all around the furnace. It is determined by the number of bricks (number of divisions N) (α = 360 degrees / N). Further, the width W of the hexagonal brick is determined by the distance (radius R) from the core (W = 2πR / N).
Therefore, the shape of the hexagonal brick is different for each furnace to be applied, and a mold for molding the hexagonal brick has a dedicated design, which causes a problem that the manufacturing period and the manufacturing cost are increased.

Furthermore, Patent Document 1 shows an example in which a straight body (cylindrical portion having a constant radius) is stacked. However, in a cone-shaped portion such as a constricted portion near the upper opening of a converter, a brick is formed according to the radius. The shape of this will be different, and a huge variety of bricks will be required.
Such an enormous variety of brick molding has a problem in that an enormous amount of dedicated molds are required and the practical application has to be abandoned.

  An object of the present invention is to provide a hexagonal brick mold, a hexagonal brick molding method, and a hexagonal brick design method capable of molding a plurality of types of hexagonal bricks according to the shape of a kiln while minimizing a dedicated portion. It is in.

  The hexagonal brick mold according to the present invention includes an isosceles trapezoidal upper and lower surfaces arranged in parallel to each other, a pair of upward slopes connected to both sides of the upper surface, and a pair of downwards connected to both sides of the lower surface. A hexagonal frustum-shaped hexagonal brick having a slope and a hexagonal furnace inner end face and a furnace outer end face connected to the upper face, the lower face, the pair of upward slopes, and the pair of downward slopes, respectively. A hexagonal brick mold, a first planar member and a second planar member arranged in parallel to each other for molding the upper surface and the lower surface, and a V-shaped groove for molding the upward slope and the downward slope. A first side member and a second side member, and a furnace inner end surface member and a furnace outer end surface member for molding the hexagonal furnace inner end surface and the furnace outer end surface. And features.

In the present invention, the upward slope and the downward slope on both sides of the hexagonal brick can be molded at a predetermined angle and size by the first side face member and the second side face member having the V-shaped groove.
Accordingly, the first side surface member and the second side surface member are arranged at a predetermined distance according to the width direction dimension of the hexagonal brick, and the distance from the first planar member to the second planar member at that time is from the upper surface to the lower surface. By adjusting the distance from the hexagonal furnace inner end face to the furnace outer end face to the length from the furnace inner end face member to the furnace outer end face member, the inside surrounded by these is equivalent to a hexagonal brick. A space to be formed is formed, and hexagonal bricks can be molded by filling the space with embryo soil.
Then, the upward slope and downward slope of the hexagonal brick, that is, the most complicated shape of the hexagonal brick, is molded by the same first side member and second side member, and this part is shared by multiple types of hexagonal bricks. In addition, other parts such as the upper surface, the lower surface, the furnace inner end face and the furnace outer end face are formed by a simple flat surface, which can be accommodated by adjusting a general-purpose mold part, or as a dedicated mold part. The cost can be sufficiently suppressed.
As described above, in the hexagonal brick mold of the present invention, it is possible to mold a plurality of types of hexagonal bricks according to the shape of the kiln while minimizing the dedicated portion.

  In the hexagonal brick mold according to the present invention, the first planar member, the second planar member, the furnace inner end surface member, and the furnace outer end surface member are sequentially connected to form a cylindrical shape. The first side surface member may be fixed to the opening, and the second side surface member may be disposed in the cylindrical shape so as to be able to approach and be separated from the first side surface member.

In the present invention, the first planar member, the second planar member, the furnace inner end surface member, the furnace outer end surface member, and the first side member form a bottomed cylindrical structure, and the inside is filled with germ soil And a hexagonal brick can be shape | molded inside by compressing with a 2nd side member.
At this time, the distance between the first planar member and the second planar member is fixed at a design height H from the upper surface to the lower surface of the hexagonal brick. The distance between the furnace inner end face member and the furnace outer end face member is fixed at a design length L from the furnace inner side to the furnace outer side of the upper surface and the lower surface of the hexagonal brick. Then, the second side member is moved toward the first side member and stopped at a position where the mutual distance becomes the designed width dimension Wn on the furnace inner end or the furnace outer side of the upper surface and the lower surface of the hexagonal brick. The desired hexagonal brick can be molded.
According to such this invention, while being able to shape | mold the several hexagonal brick from which a dimension differs with the same metal mold | die, a 1st plane member, a 2nd plane member, a 1st side member, a 2nd side member, a furnace inner end surface member, and All of the furnace outer end face members can be shared.

  In the hexagonal brick mold according to the present invention, the first planar member, the second planar member, the first side member, and the second side member are sequentially connected to form a cylindrical shape. The furnace inner end face member may be fixed to the opening, and the furnace outer end face member may be disposed in the cylindrical shape so as to be close to and separated from the furnace inner end face member.

In the present invention, the first flat member, the second flat member, the first side member, the second side member, and the furnace inner end surface member form a bottomed cylindrical structure, and the inside is filled with germ soil And a hexagonal brick can be shape | molded inside by compressing with a furnace outer end surface member.
At this time, the distance between the first planar member and the second planar member is fixed at a design height H from the upper surface to the lower surface of the hexagonal brick. The distance between the first side surface member and the second side surface member is fixed so as to be the designed width dimension Wn on the furnace inner end or the furnace outer side of the upper surface and the lower surface of the hexagonal brick. Then, the furnace outer end face member is moved toward the furnace inner end face member, and the mutual distance is stopped at a position where the upper surface and the lower surface of the hexagonal brick are the design length L from the furnace inner side to the furnace outer side. The desired hexagonal brick can be molded. Note that the contour shape and dimensions of the moving furnace outer end surface member conform to the cylindrical inner peripheral shape formed by the first planar member, the second planar member, the first side member, and the second side member at the stop position described above. Design.
According to such this invention, while being able to shape | mold the several hexagonal brick from which a dimension differs with the same metal mold | die, a 1st plane member, a 2nd plane member, a 1st side member, a 2nd side member, a furnace inner end surface member, and All of the furnace outer end face members can be shared.

In the hexagonal brick mold of the present invention, an end adjustment member may be installed along at least one of the furnace inner end surface member and the furnace outer end surface member.
According to the present invention as described above, the inclination and shape of the furnace inner end face and the furnace inner end face of the hexagonal brick to be molded can be adjusted by the end adjustment member. And by using only the end adjustment member as a dedicated member, other mold members can be shared for hexagonal bricks having different end shapes, and the sharing effect of the present invention is further promoted. be able to.

In addition, as an edge part adjustment member, it forms with the material similar to each metal mold | die (a 1st plane member, a 2nd plane member, a 1st side member, a 2nd side member, a furnace inner side end surface member, and a furnace outer side end surface member). Can be used.
Furthermore, as the end adjustment member, a partition wall having a shape conforming to the end shape of the hexagonal brick to be molded is installed at the boundary with the portion to be a molded product, and this partition wall and the furnace inner end surface member or the furnace outer end surface member In the meantime, it is also possible to fill a binderless germ soil which is similar to the hexagonal brick germ soil to be molded but does not contain a binder, thereby forming an end adjustment member.
In such an end adjustment member using a binderless germ soil, the germ soil can be reused, and only the partition wall becomes a dedicated product, and the sharing of each member of the mold can be further promoted.

  The hexagonal brick molding method of the present invention includes an isosceles trapezoidal top and bottom surfaces arranged in parallel to each other, a pair of upward slopes connected to both sides of the top surface, and a pair of downward slopes connected to both sides of the bottom surface And a hexagonal frustum-shaped hexagonal brick for forming a hexagonal frustum-shaped hexagonal brick having a top surface, a bottom surface, a pair of upward slopes, and a hexagonal furnace inner end face and a furnace outer end face connected to the pair of downward slopes, respectively. A brick molding method comprising a first plane member and a second plane member arranged in parallel to each other for molding the upper surface and the lower surface, and a V-shaped groove for molding the upward slope and the downward slope. Using the first side surface member and the second side surface member, and the furnace inner end surface member and the furnace outer end surface member for molding the hexagonal furnace inner end surface and the furnace outer end surface, The design height H of the hexagonal brick from the upper surface to the lower surface, the width Wn of the upper surface and the lower surface on the furnace inner side or the outer side of the furnace, and the length of the upper surface and the lower surface from the furnace inner side to the furnace outer side L, the distance between the first planar member and the second planar member is fixed at the height H, the distance between the furnace inner end surface member and the furnace outer end surface member is fixed at the length L, and the first Side members are fixed to the first planar member, the second planar member, the furnace inner end surface member, and the furnace outer end surface member to form a bottomed cylinder, and the inside is filled with germ soil. The second side member is made to approach the first side member until the distance reaches the width dimension Wn, and the first planar member, the second planar member, the first side member, and the second side member. The furnace inner end face member and the furnace outer end face portion Characterized by compression molding the embryos soil with enclosed within space.

  According to such this invention, while being able to shape | mold the several hexagonal brick from which a dimension differs with the same metal mold | die, a 1st plane member, a 2nd plane member, a 1st side member, a 2nd side member, a furnace inner end surface member, and All of the furnace outer end face members can be shared.

  The hexagonal brick molding method of the present invention includes an isosceles trapezoidal top and bottom surfaces arranged in parallel to each other, a pair of upward slopes connected to both sides of the top surface, and a pair of downward slopes connected to both sides of the bottom surface And a hexagonal frustum-shaped hexagonal brick for forming a hexagonal frustum-shaped hexagonal brick having a top surface, a bottom surface, a pair of upward slopes, and a hexagonal furnace inner end face and a furnace outer end face connected to the pair of downward slopes, respectively. A brick molding method comprising a first plane member and a second plane member arranged in parallel to each other for molding the upper surface and the lower surface, and a V-shaped groove for molding the upward slope and the downward slope. Using the first side surface member and the second side surface member, and the furnace inner end surface member and the furnace outer end surface member for molding the hexagonal furnace inner end surface and the furnace outer end surface, The design height H of the hexagonal brick from the upper surface to the lower surface, the width Wn of the upper surface and the lower surface on the furnace inner side or the outer side of the furnace, and the length of the upper surface and the lower surface from the furnace inner side to the furnace outer side L, the distance between the first planar member and the second planar member is fixed at the height H, the distance between the first lateral member and the second lateral member is fixed at the width dimension Wn, and the inside of the furnace The end surface member is fixed to the first planar member, the second planar member, the first side surface member, and the second side surface member and formed into a bottomed cylindrical shape, and embryo soil is filled inside these end surface members. The furnace outer end face member is brought close to the furnace inner end face member until the distance reaches the length L, and the first planar member, the second planar member, the first side member, and the second side member. The furnace inner end face member and the furnace outer end face member Characterized by compression molding the embryos soil in enclosed in a space.

  According to such this invention, while being able to shape | mold the several hexagonal brick from which a dimension differs with the same metal mold | die, a 1st plane member, a 2nd plane member, a 1st side member, a 2nd side member, a furnace inner end surface member, and All of the furnace outer end face members can be shared.

In the hexagonal brick molding method of the present invention, an end adjustment member can be installed along at least one of the furnace inner end surface member and the furnace outer end surface member before filling the germ soil.
According to the present invention as described above, the inclination and shape of the furnace inner end face and the furnace inner end face of the hexagonal brick to be molded can be adjusted by the end adjustment member. And by using only the end adjustment member as a dedicated member, other mold members can be shared for hexagonal bricks having different end shapes, and the sharing effect of the present invention is further promoted. be able to.
In addition, as an edge part adjustment member, it is as having described by description of the metal mold | die for hexagonal bricks of this invention.

  The hexagonal brick design method of the present invention includes an isosceles trapezoidal upper and lower surfaces arranged parallel to each other, a pair of upward slopes connected to both sides of the upper surface, and a pair of downward slopes connected to both sides of the lower surface. And a hexagonal frustum-shaped hexagonal brick for forming a hexagonal frustum-shaped hexagonal brick having a top surface, a bottom surface, a pair of upward slopes, and a hexagonal furnace inner end face and a furnace outer end face connected to the pair of downward slopes, respectively. In the brick design method, the installation radius R of the furnace inner end face or the furnace outer end face, the division number N, and the width direction dimension We of the upward slope and the downward slope in the furnace to be installed are first set as the installation radius R. Is divided by the division number N to calculate the pitch Pn = R / N of the furnace inner end or the furnace outer end, and then subtracting the width direction dimension We from the pitch Pn. The upper and lower surface width Wnf of the furnace inner end or furnace outer end of the lower surface is calculated, and the maximum width Wnc at the furnace inner end or the furnace outer end is calculated by adding the width direction dimension We to the pitch Pn. And

In such a present invention, for example, even when the installation radius R is changed, such as in a kiln having different specifications or in the same kiln, the radius of the hexagonal brick is changed in the width direction. By making the dimension We constant, the upward slope and the downward slope can be shared. And the change of the pitch Pn according to the installation radius R can be dealt with exclusively by the increase / decrease of the width dimension (upper and lower surface width Wnf and maximum width Wnc), that is, the upper surface, the lower surface, and the furnace inner end surface of the hexagonal brick. This can be dealt with by uniformly increasing or decreasing the width of the outer end face of the furnace.
For this reason, the mold parts necessary for molding the upward slope and the downward slope with relatively complex shapes are shared, and the simple top and bottom surfaces, the furnace inner end face and the furnace outer end face can be dedicated, The hexagonal brick suitable for manufacture by the hexagonal brick mold of the present invention can be designed.

  According to the hexagonal brick mold, hexagonal brick molding method, and hexagonal brick design method of the present invention, a plurality of types of hexagons according to the shape of the kiln are provided while minimizing a dedicated portion in the molding die. Brick can be molded.

The side view which shows the molding apparatus which is 1st Embodiment of this invention. The perspective view which shows the hexagonal brick shape | molded by the said 1st Embodiment. The disassembled perspective view which shows the molding die used in the said 1st Embodiment. The top view which shows the design procedure of the hexagonal brick shape | molded by the said 1st Embodiment. The front view which shows the design procedure of the hexagonal brick shape | molded by the said 1st Embodiment. The schematic diagram which shows the design procedure of the hexagonal brick shape | molded by the said 1st Embodiment. The side view which shows the hexagonal brick shape | molded by 2nd Embodiment of this invention. Sectional drawing which shows the preparation step of the shaping die in the said 2nd Embodiment. Sectional drawing which shows the installation stage of the edge part adjustment member in the said 1st Embodiment. Sectional drawing which shows the filling stage of the embryo soil in the said 1st Embodiment. The disassembled perspective view which shows the molding die of 3rd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
1st Embodiment of this invention is described using FIGS.
In FIG. 1, in this embodiment, in order to mold the hexagonal brick 10 based on this invention, the molding apparatus 1 with which the molding die 20 based on this invention was mounted | worn is used.

The molding apparatus 1 uses an existing press apparatus, and a column 3 is installed on a base 2, and a cylinder 4 is supported on the column 3. A rod 5 extends from the cylinder 4 toward the base 2, and the rod 5 is moved up and down by supplying hydraulic pressure from the outside.
The molding die 20 is fixed to the upper surface of the base 2 of the molding apparatus 1. A part of the molding die 20 (second side member 24 described later in the present embodiment) is movable with respect to the other part of the molding die 20 integrated into a bottomed cylindrical shape. A part that is movable is connected to the rod 5 of the molding apparatus 1 and is driven up and down by the cylinder 4.
In the molding apparatus 1, the hexagonal brick 10 is molded inside the molding die 20 by driving the aforementioned part of the molding die 20 with the cylinder 4.

  As shown in FIG. 2, the hexagonal brick 10 to be molded in the present embodiment includes an isosceles trapezoidal top surface 11 and a bottom surface 12 arranged in parallel to each other, and a pair of upward slopes 131 connected to both sides of the top surface 11, 141 and a pair of downward slopes 132, 142 connected to both sides of the lower surface 12, and a hexagonal furnace interior connected to the upper surface 11, the lower surface 12, a pair of upward slopes 131, 141, and a pair of downward slopes 132, 142, respectively. A hexagonal frustum shape having an end face 16 and a furnace outer end face 15 is formed.

In the hexagonal brick 10, the side surface 13 is formed by a mountain shape 130 composed of an upward slope 131 and a downward slope 132, and the side surface 14 is formed by a mountain shape 140 composed of an upward slope 141 and a downward slope 142.
The upward slopes 131 and 141 and the downward slopes 132 and 142 are rectangular with the same dimensions, respectively, and can be in close contact with each other so that their entire circumferences overlap each other.

In the hexagonal brick 10, the distance between the upper surface 11 and the lower surface 12, that is, the height of the hexagonal brick 10 is constant at the design height H. The distance between the hexagonal furnace outer end face 15 and the furnace inner end face 16, that is, the length of the hexagonal brick 10 is a design length L.
Side edges of the upper surface 11 and the lower surface 12 (edges connected to the side surfaces 13, 14) are at an angle α / with respect to the length direction of the hexagonal brick 10 (direction perpendicular to the furnace outer end face 15 and the furnace inner end face 16). Tilt by 2.

The lengths of the upper edge and the lower edge of the furnace outer end face 15 and the furnace inner end face 16 are the upper and lower surface widths Wif and the furnace outer end (connected to the furnace outer end face 15) at the furnace inner end (position connected to the furnace inner end face 16). Position) and the upper and lower surface width Wof. The maximum width Wic of the furnace outer end face 15 and the maximum width Woc of the furnace inner end face 16 are set.
Here, the angle α is a taper angle or a fan-shaped central angle of the hexagonal brick 10, and an angle between side edges of the upper surface 11 and the lower surface 12 or ridgelines of the side surfaces 13 and 14 (the maximum widths Wic and Woc of the hexagonal brick 10). The angle between the two portions) is the taper angle α.

In the present embodiment, the width dimension Wn of the upper surface 11 and the lower surface 12 is used as a nominal dimension for identifying the size of the hexagonal brick 10. The width dimension Wn may be either the above-described upper and lower surface width Wif of the furnace or the upper and lower surface width Wof of the furnace outside, or an intermediate value thereof.
The shape dimensions of these hexagonal bricks 10 will be described later in detail with reference to FIGS. 4 to 6 together with a design procedure for molding hexagonal bricks 10 of different dimensions using the same molding die 20. .
In order to mold such a hexagonal brick 10, a molding die 20 is used.

In FIG. 3, the mold 20 includes a pair of first planar members 21 and second planar members 22, a pair of first side members 23 and a second side member 24, a pair of furnace inner end surface members 26 and A furnace outer end face member 25.
Each of these members 21 to 26 is formed of a steel plate or block, and the opposing surfaces of each pair are processed so as to obtain the smoothness required as a mold.

The first planar member 21 and the second planar member 22 are arranged in parallel so that the distance between them becomes a height H in order to mold the upper surface 11 and the lower surface 12 (see FIG. 2) of the hexagonal brick 10.
The furnace inner end face member 26 and the furnace outer end face member 25 are arranged in parallel so that the distance between them becomes a length L in order to mold the furnace inner end face 16 and the furnace outer end face 15 (see FIG. 2).
The first planar member 21, the second planar member 22, the furnace inner end surface member 26, and the furnace outer end surface member 25 are connected to each other in a rectangular cylindrical shape.

In the space surrounded by the first planar member 21, the second planar member 22, the furnace inner end surface member 26, and the furnace outer end surface member 25, the first side surface member 23 extends along one end opening surface of the space. Is arranged.
The 1st side member 23 is being fixed so that the perimeter may be closely_contact | adhered to the 1st plane member 21, the 2nd plane member 22, the furnace inner side end surface member 26, and the furnace outer side end surface member 25, respectively.
For fixing the first side member 23, the first planar member 21, the second planar member 22, the furnace inner end surface member 26, and the furnace outer end surface member 25, fastening by welding or bolts or the like is used.
As a result, among the members constituting the molding die 20, the first planar member 21, the second planar member 22, the furnace inner end surface member 26, the furnace outer end surface member 25 and the first side member 23 are integrated. It is formed in a bottom cylinder shape.
The second side member 24 can be inserted into the inside of the above-described bottomed cylindrical opening from the left side, and can be disposed opposite to the first side member 23 incorporated in the bottomed cylindrical shape.

The first side member 23 and the second side member 24 have V-shaped grooves 230 and 240 on their opposing surfaces. The V-shaped grooves 230 and 240 have slopes 231 and 232 or slopes 241 and 242 that form a predetermined angle, respectively. The slopes 231 to 242 are shaped and correspond to the upward slopes 131 and 141 and the downward slopes 132 and 142 (see FIG. 2) of the hexagonal brick 10 described above, and are opposite to the first side member 23 and the second side member 24. The angle α / 2 is also inclined with respect to the surface.
In the 1st side surface member 23 and the 2nd side surface member 24, the triangle soil-shaped side surfaces 13 and 14 are shape | molded in this embryo soil by pressing the embryo soil which should become the hexagonal brick 10 against such slope 231-242. be able to.

In such this embodiment, the hexagonal brick 10 is shape | molded in the following procedures.
First, as shown in FIG. 3, in the molding die 20, the first planar member 21, the second planar member 22, the furnace inner end surface member 26, the furnace outer end surface member 25, and the first side member 23 are integrated to have a bottom. As shown in FIG. 1, the bottomed cylindrical structure is fixed on the base 2.
Thereby, the 1st plane member 21 and the 2nd plane member 22 are fixed through the design height H of the hexagonal brick 10, and the furnace inner end surface member 26 and the furnace outer end surface member 25 are designed of the hexagonal brick 10. The upper length L is fixed.

Next, the embryo to be the hexagonal brick 10 is formed inside the first flat member 21, the second flat member 22, the furnace inner end face member 26, the furnace outer end face member 25, and the first side face member 23 that have a bottomed cylindrical shape. Fill the soil with a predetermined amount.
Subsequently, the cylinder 4 of the molding apparatus 1 is operated to introduce the second side member 24 into the bottomed cylindrical shape, and further move the second side member 24 toward the first side member 23. Thereby, the germinal soil in the bottomed cylindrical shape is gradually compressed, and the first planar member 21, the second planar member 22, the furnace inner end surface member 26, the furnace outer end surface member 25, the first side surface member 23 and the second surface member. It is shaped by the side member 24.
Then, the desired hexagonal brick 10 is molded inside by stopping at a predetermined position where the distance between the second lateral member 24 and the first lateral member 23 becomes the designed width dimension Wn of the hexagonal brick 10. Is done.

In this embodiment, a plurality of hexagonal bricks 10 having different width dimensions Wn can be molded simply by changing the movement position of the second side member 24 while using the same molding die 20. That is, even when the hexagonal bricks 10 having different dimensions are molded, the first planar member 21, the second planar member 22, the first side member 23, the second side member 24, the furnace inner end surface member 26, and the furnace outer end surface member 25 All can be shared.
In particular, the upward slopes 131 and 141 and the downward slopes 132 and 142, which are relatively complicated parts in the hexagonal brick 10, can be collectively molded using the first side member 23 and the second side member 24, respectively. In addition, the first side surface member 23 and the second side surface member 24 can be shared by the hexagonal bricks 10 of a plurality of sizes, so that the mold cost can be greatly reduced and the production period can be shortened.

[Brick design procedure suitable for the first embodiment]
By the way, the molding apparatus 1 of 1st Embodiment of this invention is applicable to shaping | molding of the several hexagon brick 10 from which a dimension differs, using the same molding die 20, as mentioned above. However, in order to share the molding die 20, a plurality of hexagonal bricks 10 having different dimensions need to be designed by a design procedure corresponding to the molding die 20.
This design procedure will be described based on FIG. 4, FIG. 5 and FIG.

As a premise of the design, the height H, the length L, and the taper angle α are set in the hexagonal brick 10 as described in FIG. 2, and the upper and lower surface width Wif and maximum width Wic inside the furnace, the outside of the furnace The upper and lower surface width Wof and the maximum width Woc are set (see FIGS. 4 and 5).
Furthermore, in the hexagonal brick 10, the upward slopes 131, 141 and the downward slopes 132, 142 constituting the side faces 13, 14 are inclined at an angle A with respect to the upper surface 11 and the lower surface 12, respectively (see FIG. 5). .

On the side surfaces 13 and 14, upward slopes 131 and 141 and downward slopes 132 and 142 project laterally, and the widthwise dimension of the projecting slope portion is We.
The width direction dimension We of the slope portion is defined by the ridgeline (the portion that gives the maximum widths Woc and Wic) connected by the upward slopes 131 and 141 and the downward slopes 132 and 142, and the side edges of the upper surface 11 and the lower surface 12 to which each slope is connected. Is given by the distance in the width direction.
The width direction dimension We of the slope portion is We = (Wic−Wif) / 2 = (Wo−Wof) / 2, and is the same inside and outside the furnace.

In the hexagonal brick 10, the angle A on the upward slopes 131, 141 and the downward slopes 132, 142 and the width direction dimension We of the slope part are the same in any part from the furnace inner end surface 16 to the furnace outer end surface 15 of the hexagonal brick 10. is there.
Thereby, even if the hexagonal brick 10 has different width dimensions (upper and lower width Wif and maximum width Wic inside the furnace, upper and lower width Wof and maximum width Woc outside the furnace), the angle A and the slope on the side surfaces 13 and 14 are different. The width-direction dimension We of the part is the same, and the hexagonal bricks 10 which adjoin (a hierarchy is adjacent also up and down) can mutually connect via the side surfaces 13 and 14. FIG.

Under such a premise, the hexagonal brick 10 is designed as follows.
As design conditions for the hexagonal brick 10, the installation radius R of the furnace inner end face or furnace outer end face, the division number N, the width direction dimension We of the upward slope and the downward slope are determined in advance.

  As the installation radius R, either the installation radius Ri on the furnace inner end face 16 of the hexagonal brick 10 or the installation radius Ro on the furnace outer end face 15 can be used. These installation radii Ri and Ro can be obtained from the design information of the furnace as the installation radii of the furnace inner end face or the furnace outer end face of the refractory lining inside the iron skin. The length L = Ro−Ri of the hexagonal brick 10 can be calculated from the difference between the installation radii Ri and Ro. This length L is the thickness dimension of the refractory lining.

The division number N is the number of hexagonal bricks 10 assigned to one round of the refractory lining in the kiln, and is determined in consideration of the circumferential length of the refractory lining and the general size of the hexagonal brick 10.
The width direction dimension We is determined from the shapes of the upward slopes 131 and 141 and the downward slopes 132 and 142 of the side faces 13 and 14 based on the general size of the hexagonal brick 10. However, when using the mold 20 that has already been determined, the value set for the mold 20 is used.

When these design conditions are determined, the shape dimension of the hexagonal brick 10 is determined by the following procedure.
In FIG. 4, the taper angle α of the hexagonal brick 10 = 360 degrees / N and the pitch Pn = 2πR / N for arranging the hexagonal bricks 10 in the circumferential direction are obtained from the installation radius R and the division number N described above.
Specifically, the furnace inner end face 16 has the furnace inner installation radius Ri, and the furnace inner pitch Pin = 2πRi / N. The furnace outer end face 15 has a furnace outer installation radius Ro, and the furnace outer pitch Pon = 2πRo / N. For these, it is not necessary to use both the inside and outside values, and only one of them may be used.

In FIG. 6, for example, when the installation radius R1 in the first kiln is set, the arrangement pitch P1 = 2πR1 / N. For this reason, in the hexagonal brick 10 used in the first kiln, the vertical width Wf1 = P1−We and the maximum width Wc1 = P1 + We.
On the other hand, when the installation radius R2 in the second kiln is set, the arrangement pitch P2 = 2πR2 / N, and in the hexagonal brick 10 used in the second kiln, the vertical width Wf2 = P2-We and the maximum width Wc2 = P2 + We. .

These calculations may be performed at either the furnace inner end (installation radius Ri) or the furnace outer end (installation radius Ro) described above.
For example, when calculating at the furnace inner end for the hexagonal brick 10 used in the first kiln, after calculating the arrangement pitch Pi = 2πRi1 / N from the installation radius Ri1, in FIG. 5, the vertical width Wif = Pi -We, the maximum width Wic = Pi + We can be calculated.
Alternatively, when calculating at the outer end of the hexagonal brick 10 used in the second kiln, after calculating the arrangement pitch Po = 2πRo2 / N from the installation radius Ro2, in FIG. 5, the upper and lower surface width Wof = Po. −We, maximum width Woc = Po + We can be calculated.

  Thus, when using the molding die 20 of this embodiment, the dimensions of each part of the hexagonal brick 10 are determined by calculating the width direction dimension We of the slope portion corresponding to the molding die 20 as a fixed value. be able to.

[Second Embodiment]
In the first embodiment described above, the furnace outer end surface 15 and the furnace inner end surface 16 of the hexagonal brick 10 are formed at right angles to the upper surface 11 and the lower surface 12.
On the other hand, in this embodiment, as shown in FIG. 7, the furnace outer end surface 15 and the furnace inner end surface 16 of the hexagonal brick 10 are inclined at an angle B with respect to the upper surface 11 and the lower surface 12.
When the hexagonal brick 10 having the inclined end face is molded as described above, a dedicated mold in which the furnace inner end face member 26 and the furnace outer end face member 25 of the molding die 20 are inclined at an angle B can be used. In the embodiment, the inclined end face is molded by using the molding die 20 of the first embodiment as it is.

In FIG. 8, the molding die 20 is the same as that described in the first embodiment. For this reason, the same code | symbol is used for each part and the overlapping description is abbreviate | omitted.
Inside the molding die 20, end adjustment members 250 and 260 are installed along the furnace outer end face member 25 and the furnace inner end face member 26.

The end adjustment members 250 and 260 include partition walls 251 and 261 that are spaced from the surface of the furnace outer end surface member 25 or the furnace inner end surface member 26.
The partition walls 251 and 261 are fixed to the first side member 23, the second plane member 22, and the first plane member 21 (not shown in FIG. 8) of the molding die 20 and the second side member 24 is closed. It is formed so as to be in close contact with its inner surface. In fixing, the partition walls 251 and 261 are inclined with respect to the second planar member 22 and the first planar member 21, and the angle is the angle B of the hexagonal brick 10 to be molded.

In FIG. 9, the binderless germ soils 252 and 262 are filled between the partition walls 251 and 261 and the surface of the furnace outer end surface member 25 or the furnace inner end surface member 26, respectively.
The binderless embryo soils 252 and 262 are the same as the embryo soil used for molding the hexagonal brick 10, but do not include a binder and can be easily destroyed and reused as embryo soil even after compression molding. .
In the present embodiment, the end adjustment members 250 and 260 are constituted by the partition walls 251 and 261 and the binderless embryo soil 252 and 262.

In such this embodiment, the hexagonal brick 10 in which the end surfaces of the furnace inner side and the furnace outer side are inclined is molded by the following molding procedure.
First, as shown in FIG. 8, the molding die 20 is installed, and the partition walls 251 and 261 are installed therein.
Next, as shown in FIG. 9, the binderless germ soils 252 and 262 are filled and the end adjustment members 250 and 260 are installed.

Subsequently, as shown in FIG. 10, a molding embryo 19 including a binder is filled in the molding die 20.
Further, the second side member 24 is lowered, the molding die 20 is closed, the embryo soil 19 is compressed, and the hexagonal brick 10 is molded.
In the molded hexagonal brick 10, the upper surface 11 and the lower surface 12 are molded by the first planar member 21 and the second planar member 22, and the side surfaces 13, 14 having slope portions are formed by the first side member 23 and the second side member 24. Molded. Further, the furnace outer end face 15 and the furnace inner end face 16 that are inclined at an angle B are formed by the end adjustment members 250 and 260.
Thereby, the hexagonal brick 10 with which the end surface of the furnace inner side and the furnace outer side inclined like FIG. 7 can be shape | molded.

[Third Embodiment]
In the first embodiment described above, in the molding die 20, the first planar member 21, the second planar member 22, the furnace inner end surface member 26, the furnace outer end surface member 25, and the first side member 23 are formed into a bottomed cylindrical shape. The second side member 24 was separately introduced into the bottomed cylindrical interior.
On the other hand, in this embodiment, as shown in FIG. 11, the 1st plane member 21, the 2nd plane member 22, the 1st side member 23, and the 2nd side member 24 are connected sequentially, and are formed in a cylinder shape, The furnace inner end face member 26 is fixed to the one cylindrical opening, and the furnace outer end face member 25 facing the furnace inner end face member 26 is introduced into the cylindrical interior.

In this embodiment, the 1st plane member 21, the 2nd plane member 22, the 1st side member 23, and the 2nd side member 24 are comprised similarly to 1st Embodiment mentioned above.
On the other hand, the furnace outer end face member 25 and the furnace inner end face member 26 have different shapes from those of the first embodiment described above.
In the first embodiment described above, the furnace outer end surface member 25 and the furnace inner end surface member 26 are each formed in a plate shape, and the first planar member 21, the second planar member 22, the first side member 23 and the second planar member are formed on the surfaces thereof. The edge of the side member 24 was abutted and fixed.
On the other hand, the furnace outer end face member 25 and the furnace inner end face member 26 of the present embodiment are each formed in a hexagonal shape, and the first flat member 21, the second flat member 22, the first side member 23, and the second side member. 24 can be inserted into a cylindrical inner hexagonal cavity.

Among these, the furnace inner end face member 26 is fixed to an opening end that is a cylindrical furnace inner side formed by the first flat member 21, the second flat member 22, the first side face member 23, and the second side face member 24. The circumference is fixed in this cylindrical shape.
On the other hand, the furnace outer end surface member 25 has a cylindrical inner predetermined position formed by the first planar member 21, the second planar member 22, the first side member 23, and the second side member 24, and the entire circumference of the furnace outer end surface member 25. Fixed in shape. The predetermined position is a position separated from the inner surface of the furnace inner end face member 26 by the length L of the hexagonal brick 10 to be molded (distance from the furnace inner end face 16 to the furnace outer end face 15).

In this embodiment, the first planar member 21, the second planar member 22, the first side member 23, the second side member 24, and the furnace inner end surface member 26 form a bottomed cylindrical structure, The hexagonal brick 10 can be molded inside by filling the inside with embryo soil and compressing with the furnace outer end face member 25.
In molding, the distance between the first planar member 21 and the second planar member 22 is fixed at a design height H from the upper surface 11 to the lower surface 12 of the hexagonal brick 10. Further, the distance between the first side surface member 23 and the second side surface member 24 is the upper and lower surface width Wif of the furnace inner end of the upper surface 11 and the lower surface 12 of the hexagonal brick 10, the maximum width Wic, or the upper and lower surface width Wof of the furnace outer end. It is fixed so that the maximum width Woc becomes a design dimension.

After such a setting, the inside is filled with germ soil, the furnace outer end face member 25 is moved toward the furnace inner end face member 26, and the mutual distance becomes the design length L of the hexagonal brick 10. The inner germ soil is compressed and the intended hexagonal brick 10 can be molded.
According to this embodiment, a plurality of hexagonal bricks 10 having different dimensions can be molded with the same molding die 20, and the first planar member 21, the second planar member 22, the first side member 23, and the second side surface. The member 24, the furnace inner end face member 26 and the furnace outer end face member 25 can be shared.

[Modification]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications and the like within a scope that can achieve the object of the present invention are included in the present invention.
Regarding the movable part of the molding die 20, the second side member 24 is movable in the first and second embodiments, and the other part is integrated into a bottomed cylindrical shape. In the third embodiment, the furnace outer end face The member 25 was movable, and the other parts were integrated into a bottomed cylindrical shape.

On the other hand, other members, for example, the first side member 23, the first planar member 21, the second planar member 22, or the furnace inner end surface member 26 may be movable. However, when the first planar member 21 or the second planar member 22 is movable, consideration must be given to reliably fill the V-grooves of the first side member 23 and the second side member 24 with germ soil. . Further, when the furnace inner end face member 26 is movable, the back side dimension is enlarged although it depends on the taper angle α. Therefore, it is necessary to consider the surrounding seal and the like.
Furthermore, the movable part of the molding die 20 is not limited to one member. For example, both the first side member 23 and the second side member 24 facing each other are movable, and the first planar member 21 and the second planar member are movable. 22, the furnace inner end face member 26 and the furnace outer end face member 25 may be integrated into a cylindrical shape having both ends open.

  The angle A formed by the upward slopes 131 and 141 and the downward slopes 132 and 142 of the hexagonal brick 10 may be set as appropriate, and the inclination angle of the upward slopes 131 and 141 may be different from the inclination angle of the downward slopes 132 and 142. In this case, when the hexagonal bricks 10 are stacked, the hexagonal bricks 10 need to face each other at the same angle, but can be dealt with by reversing the hexagonal bricks 10 for each layer adjacent vertically.

In 2nd Embodiment, although the inclination was provided in the furnace inner side end surface 16 and the furnace outer side end surface 15 of the hexagonal brick 10, it is not essential that each is the same angle B, and it is good also as a different inclination angle. Alternatively, either one of the end adjustment members 250 and 260 may be omitted without being inclined.
In addition, the detailed shape, material, and the like of each part may be appropriately selected for implementation.

  The present invention relates to a hexagonal brick mold, a hexagonal brick molding method, and a hexagonal brick design method, and can be used as a refractory lining for a kiln or a ladle.

DESCRIPTION OF SYMBOLS 1 ... Molding apparatus 2 ... Base 3 ... Column 4 ... Cylinder 5 ... Rod 10 ... Hexagon brick 11 ... Upper surface 12 ... Lower surface 13,14 ... Side surface 15 ... Furnace outer side end surface 16 ... Furnace inner side end surface 19 ... Germ soil 130,140 ... Yamagata Shape 131, 141 ... Upward slope 132, 142 ... Downward slope 20 ... Mold 21 ... First planar member 22 ... Second planar member 23 ... First side member 24 ... Second side member 25 ... Furnace outer end member 26 ... Furnace inner end face members 230, 240 ... V-shaped grooves 231, 232, 241, 242 ... slopes 250, 260 ... end adjustment members 251, 261 ... partition walls 252, 262 ... embryo soil A ... slope angle B of upward and downward slopes ... Inclination angle L of furnace inner end face and furnace outer end face ... Length N ... Division number α ... Taper angle Pn, P1, P2 ... Pitch R, R1, R2, Ri1, Ro2 ... Installation radius Ri ... Installation inside the furnace Radius Ro ... Radio outside installation radius Wn ... Width dimension Wnc ... Maximum width Wnf ... Vertical surface width We ... Upward and downward slope width direction dimension Wic ... Inner furnace maximum width Wif ... Inner furnace upper and lower surface width Woc ... Outside of furnace Maximum width Wof… Upper and lower widths on the outside of the furnace

Claims (8)

An upper surface and a lower surface of isosceles trapezoids arranged in parallel to each other, a pair of upward slopes connected to both sides of the upper surface, a pair of downward slopes connected to both sides of the lower surface, the upper surface, the lower surface, and a pair A hexagonal brick mold for molding a hexagonal frustum-shaped hexagonal brick having a hexagonal furnace inner end face and a furnace outer end face respectively connected to the upward slope and the pair of downward slopes,
First and second plane members arranged in parallel to each other for molding the upper surface and the lower surface, and first and second side members having V-shaped grooves for molding the upward slope and the downward slope. A hexagonal brick mold comprising: a side member; a furnace inner end surface member and a furnace outer end surface member for molding the hexagonal furnace inner end surface and the furnace outer end surface. In the hexagonal brick mold according to claim 1,
The first planar member, the second planar member, the furnace inner end surface member, and the furnace outer end surface member are sequentially connected to form a cylindrical shape, and the first side surface member is fixed to one of the cylindrical openings. In addition, the hexagonal brick mold is characterized in that the second side member is disposed in the cylindrical shape so as to be close to and separated from the first side member. In the hexagonal brick mold according to claim 1,
The first planar member, the second planar member, the first side member, and the second side member are sequentially connected to form a cylindrical shape, and the furnace inner end surface member is fixed to one of the cylindrical openings. In addition, the hexagonal brick mold is characterized in that the furnace outer end face member is disposed in the cylindrical shape so as to be close and separable toward the furnace inner end face member. In the hexagonal brick mold according to any one of claims 1 to 3,
A hexagonal brick mold, wherein an end adjustment member is installed along at least one of the furnace inner end face member and the furnace outer end face member. An upper surface and a lower surface of isosceles trapezoids arranged in parallel to each other, a pair of upward slopes connected to both sides of the upper surface, a pair of downward slopes connected to both sides of the lower surface, the upper surface, the lower surface, and a pair A hexagonal brick molding method for molding a hexagonal frustum-shaped hexagonal brick having a hexagonal furnace inner end face and a furnace outer end face connected to the upward slope and the pair of downward slopes, respectively,
First and second plane members arranged in parallel to each other for molding the upper surface and the lower surface, and first and second side members having V-shaped grooves for molding the upward slope and the downward slope. Using a side member, a furnace inner end face member and a furnace outer end face member for molding the hexagonal furnace inner end face and the furnace outer end face,
Design height H of the hexagonal brick from the upper surface to the lower surface, the width Wn of the upper surface and the lower surface on the furnace inner side or the furnace outer side, the length of the upper surface and the lower surface from the furnace inner side to the furnace outer side L
The distance between the first planar member and the second planar member is fixed at the height H, the distance between the furnace inner end surface member and the furnace outer end surface member is fixed at the length L, and the first side member is fixed. , Fixed to the first planar member, the second planar member, the furnace inner end surface member and the furnace outer end surface member, and formed into a bottomed cylindrical shape,
The inside of these is filled with germ soil, and the second side surface member is brought close to the first side surface member until the distance reaches the width dimension Wn, and the first planar member, the second planar member, the first A hexagonal brick molding method, wherein the embryo soil is compression molded in a space surrounded by one side member, the second side member, the furnace inner end surface member, and the furnace outer end surface member. An upper surface and a lower surface of isosceles trapezoids arranged in parallel to each other, a pair of upward slopes connected to both sides of the upper surface, a pair of downward slopes connected to both sides of the lower surface, the upper surface, the lower surface, and a pair A hexagonal brick molding method for molding a hexagonal frustum-shaped hexagonal brick having a hexagonal furnace inner end face and a furnace outer end face connected to the upward slope and the pair of downward slopes, respectively,
First and second plane members arranged in parallel to each other for molding the upper surface and the lower surface, and first and second side members having V-shaped grooves for molding the upward slope and the downward slope. Using a side member, a furnace inner end face member and a furnace outer end face member for molding the hexagonal furnace inner end face and the furnace outer end face,
Design height H of the hexagonal brick from the upper surface to the lower surface, the width Wn of the upper surface and the lower surface on the furnace inner side or the furnace outer side, the length of the upper surface and the lower surface from the furnace inner side to the furnace outer side L
The distance between the first planar member and the second planar member is fixed at the height H, the distance between the first side member and the second side member is fixed at the width dimension Wn, and the furnace inner end surface member is fixed. The first flat member, the second flat member, the first side member and the second side member are fixed to the bottomed cylindrical shape,
The inside of these is filled with germ soil, the furnace outer end face member is brought close to the furnace inner end face member until the distance reaches the length L, and the first planar member, the second planar member, the first A hexagonal brick molding method, wherein the embryo soil is compression molded in a space surrounded by one side member, the second side member, the furnace inner end surface member, and the furnace outer end surface member. In the hexagonal brick molding method according to claim 5 or 6,
A hexagonal brick molding method, wherein an end adjustment member is installed along at least one of the furnace inner end face member and the furnace outer end face member before filling the germ soil. An upper surface and a lower surface of isosceles trapezoids arranged in parallel to each other, a pair of upward slopes connected to both sides of the upper surface, a pair of downward slopes connected to both sides of the lower surface, the upper surface, the lower surface, and a pair A hexagonal brick design method for forming a hexagonal frustum-shaped hexagonal brick having a hexagonal furnace inner end face and a furnace outer end face connected to the upward slope and the pair of downward slopes, respectively,
As the installation radius R of the furnace inner end face or the furnace outer end face in the furnace to be installed, the division number N, the width direction dimension We of the upward slope and the downward slope,
First, the pitch Pn = R / N of the furnace inner end or the furnace outer end is calculated by dividing the installation radius R by the division number N,
Next, the width direction dimension We is subtracted from the pitch Pn to calculate the upper and lower surface width Wnf of the furnace inner end or the furnace outer end of the upper surface and the lower surface, and the width direction dimension We is added to the pitch Pn. And calculating the maximum width Wnc at the furnace inner end or the furnace outer end.

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