JP5664208B2 - Auxiliary equipment for float glass production - Google Patents

Description

  The present invention relates to an auxiliary apparatus for manufacturing float glass, and relates to an apparatus for supplying a tin ingot to a float bath.

  In the float process, molten glass is continuously supplied to a bath surface of molten tin stored in a float bath in a reducing atmosphere, a glass ribbon is formed, and the glass ribbon is drawn downstream. Obtain float glass.

  When the glass ribbon is pulled out, tin adhering to the back surface of the glass ribbon is taken out of the float bath, so that the amount of tin stored in the float bath gradually decreases. Therefore, it is necessary to replenish the float bath with the tin ingot while manufacturing the float glass.

  In addition, it is necessary to accurately grasp the temperature in the float bath when the float bath is heated after the float bath has been repaired, so a tin ingot is previously placed in the float bath. It is not possible to arrange them side by side, and it is also necessary to gradually supply tin ingots to the float bath.

  When supplying the tin ingot from the float bath, the side sealing block on the side wall of the float bath is removed, an opening provided on the side wall of the float bath is provided, and the tin ingot is supplied from the opening. During the supply of the tin ingot, oxygen in the atmosphere flowing from the opening of the side wall of the float bath reacts with tin to produce a solid substance called dross.

  When dross adheres to the glass ribbon, it becomes a defect such as surface irregularities, so it must be removed from the molten tin surface. However, the longer the working time for supplying the tin ingot, the greater the amount of dross that is generated, making it difficult to remove from the float bath.

  As a method for supplying a tin ingot to a float bath, as described in Japanese Patent Application Laid-Open No. 2010-76968, a tin ingot is placed on a guide tube installed at an inclination on the side wall of the float bath and floated with a push rod. A method of pushing into a bus is known (see Patent Document 1).

JP 2010-76968 A

  In the method for supplying a tin ingot to the float bath described in Patent Document 1, since the opening of the side wall of the float bath is sealed, generation of dross can be suppressed, but when supplying the tin ingot, Since the installation position of the guide pipe is fixed, if one tin ingot is supplied, the ingot will block the exit of the guide pipe, and the next ingot will be thrown in after the ingot has melted There is a problem that the supply work efficiency of the tin ingot is low.

  The present invention has been made in view of such problems, and after supplying a single tin ingot, it is not necessary to wait until the tin ingot melts, and it is possible to supply tin ingots one after another. An object of the present invention is to provide an auxiliary device for producing a float glass that can greatly increase the efficiency of the supply work of tin ingots.

  That is, the present invention is a float glass manufacturing auxiliary device for supplying a tin ingot to a molten tin bath of a float bath, comprising a rigid long frame material and a support supporting the long frame material, The long frame material has a handle and a balance weight at one end, and a receiving member that holds the tin ingot at the other end, and the support column and the balance member side of the long frame material An auxiliary apparatus for manufacturing float glass, characterized in that it has moving means provided at a position where moments with the weight side substantially coincide with each other and capable of moving the long frame member in the longitudinal direction.

Alternatively, it has a shape matched to the tin ingot, and the receiving member has a pair of support members that support only the left and right shoulders of the reverse convex cross-sectional shape in the longitudinal direction of the long frame material. It is the above-mentioned auxiliary apparatus for float glass manufacture characterized by having on the right and left .

  Alternatively, in the float glass manufacturing auxiliary device described above, a support base for supporting the long frame material is provided between the support of the long frame material and the balance weight.

  According to the present invention, it is possible to place a tin ingot at an arbitrary position in the float bath within the movable range of the long frame material, so without waiting for the previously supplied tin ingot to melt, It has become possible to continuously supply tin ingots one after another, and it has become possible to significantly reduce the time for supplying tin ingots. As a result, the time required to open the side of the float bath is reduced, and the amount of oxygen flowing into the float bath is reduced, so that the generation of dross can be kept low, and the defect of float glass caused by dross can be greatly reduced. Became possible.

  Further, according to the present invention, the tin ingot can be quietly placed in the float bath, and the bottom casing on the bottom surface of the float bath is not damaged, so that the float glass manufacturing facility caused by the peeling of the bottom casing The possibility of failure disappeared, and more stable operation of the float glass manufacturing facility became possible.

The perspective view of the float bath manufacturing auxiliary device concerning the embodiment of the present invention. The receiving member enlarged view of the float bath manufacturing auxiliary apparatus concerning embodiment of this invention. The figure which shows the operating method of the float bath manufacturing auxiliary apparatus concerning embodiment of this invention.

  As shown in FIG. 1, the float glass manufacturing auxiliary device of the present invention has a receiving member 12 for placing a tin ingot 4 on one end of a long frame material 11 supported by a support column 15, and the other end. A balance weight 13 is provided for balancing the weight between the handle 14 for the operator (not shown) to operate the apparatus of the present invention and the receiving member 12 on which the tin ingot 4 is placed. The total length of the long frame member 11 is about 6 m, and the operator can avoid radiant heat from the float bath 2.

  The column 15 is provided at an intermediate point on the long frame, and the column support frame 153 is provided with a moving means constituted by a uniaxial wheel 151. However, the position where the column 15 is provided on the long frame 11 may be a position where the moments of the receiving member 12 and the balance weight 13 when the tin ingot is mounted are substantially uniform, and it is not always necessary to follow this embodiment. Absent.

  The long frame 11 can be moved in the longitudinal direction of the long frame 11 by the wheels 151, and the long frame 11 can be swung around the axis of the wheels 151 as a fulcrum.

  The tin ingot 4 has a reverse convex cross-sectional shape as shown in FIG. 1, and the receiving member 12 on which the tin ingot 4 is placed is formed of the long frame material 11 as shown in FIG. Support members 121 are provided on the left and right with respect to the longitudinal direction, and the tin ingot 4 is supported by the left and right shoulders of the tin ingot 4 by the support member 121.

  The support 16 is provided between the support 15 on the long frame material 11 and the balance weight 13, and is set at the same height as the support 5. In addition, since the support stand 16 includes the wheels 161, the support stand 16 can be easily moved.

  By providing the support base 16 in this manner, when the tin ingot 4 is not placed on the receiving member 12 and the coincidence of moments at both ends of the long frame material 11 is not obtained, the balance weight 13 side is provided. Since the long frame 11 to be lowered is supported by the support base 16, the long frame 11 is held substantially horizontally, so that it is not necessary for the operator holding the handle 14 to apply a force upward. Can be easily moved in the longitudinal direction of the long frame 11.

  Further, the support 15 is provided with a height adjusting means 152 as shown in FIG. 1, whereby the apparatus of the present invention can be adjusted to a desired height.

  Further, in FIG. 1, the moving means 151 also has a role as a fulcrum for swinging the long frame, but it is not always necessary to have such a configuration. The contact point of the long frame may be a fulcrum.

  Moreover, the moving means 151 does not necessarily need to be a uniaxial wheel, and if the moving means 151 is not used as a fulcrum, it may be anything that can move the long frame 11 in the longitudinal direction.

  Next, an operation procedure for introducing a tin ingot into the molten tin bath of the float bath using the float glass production assisting apparatus of the present invention will be described with reference to FIG.

  FIG. 3 is a view showing a cross section of the float glass manufacturing auxiliary device and the float bath of the present invention.

  In the float bath 2, molten tin is accommodated in the bottom casing 22, and a glass ribbon 23 is formed on a horizontal bath surface of the molten tin bath 21, and the glass ribbon 23 extends in a direction perpendicular to the paper surface of FIG. 3. Has been pulled out.

  There are two types of tin ingots 4 of 20 kg and 40 kg, each having a different size. Therefore, in the float bath manufacturing auxiliary device 1, the receiving member 12 having a shape corresponding to the tin ingot 4 supplied into the float bath according to the weight of the tin ingot 4 to be supplied is previously attached to the long frame material 11 before the work. At the same time, the weight of the balance weight 13 is also adjusted so that the moments of the long frame material 11 on the balance weight 13 side and the receiving member 12 side substantially coincide with each other when the ingot 4 is placed on the receiving member 12. .

  The arrangement of the float glass manufacturing auxiliary device 1 is such that a side sealing block (not shown) fitted in the side wall of the float bath 2 is removed, an opening is provided in the side wall of the float bath 2, and the float glass manufacturing auxiliary device is provided in the opening. It arrange | positions so that the one receiving member 12 may face.

  And the height of the elongate frame material 11 is adjusted with the height adjustment means 152 so that the receiving member 12 may oppose the said opening part in the state where the elongate frame material 11 is horizontal.

  The tin ingot is usually supplied by two people. First, the entire float glass manufacturing auxiliary device is pulled out to the outside of the float bath 2, and a base having a height lower than the lower side of the opening is installed in the vicinity of the opening. Then, an operator not shown places the tin ingot 4 on the table. Then, the operator 3 who operates the float glass production assisting device with the handle 14 lowers the receiving member 12 side of the long frame material 11 and receives it on the left and right shoulders of the tin ingot 4 placed on the table. The support member 121 of the member 12 is inserted, and the tin ingot 4 is placed on the receiving member 12. Then, the long frame material is lifted, the receiving member 12 is directed to the opening, the operator 3 pushes the handle 14 forward, and the receiving member 12 on which the tin ingot 4 is placed floats horizontally from the opening. The ingot 4 is introduced into the bus 2 and placed at an arbitrary position in the float bath 2. Since the weight of the balance weight 13 is adjusted so that the moments substantially coincide between the receiving member 12 side of the long frame material 11 and the balance weight 13 side, when the operator pushes the handle 14 forward, There is no need to apply a downward force, and stable operation is possible.

  The direction in which the receiving member 12 is pushed in can be swung to the left and right with respect to the direction perpendicular to the side wall of the float bath 2, so that the fan-shaped wide with the opening as the apex is within the reach of the long frame material 11. The tin ingot 4 can be placed within the range.

  Since the tin ingot 4 can be placed in such a wide range, it is possible to continuously supply the tin ingot into the float bath 2 one after another. It has become possible to greatly reduce the time required for supplying tin ingots during glass production.

  Further, when placing the ingot 4 in the float bath 2, the height of the lower side of the opening from the bottom surface of the bottom casing 22 is about 100 mm, so that the long frame material 11 is lowered to the float bath 2 side. The center convex portion of the reverse convex shape of the ingot 4 is gently placed on the bottom surface of the bottom casing 22. Then, when the long frame member 11 is further tilted so as to be lowered toward the float bath 2, a gap is generated between the support member 121 of the receiving member 12 and the left and right shoulders of the inverted convex shape of the ingot 4, and the tin ingot 4 is The receiving member 12 can be pulled out from the tin ingot 4 without being caught.

  Since the tin ingot 4 can be placed on the bottom surface of the bottom casing 22 in this manner, the tin ingot 4 can be supplied without damaging the bottom surface of the bottom casing 22.

  Further, when the tin ingot 4 is placed, the moments on the receiving member 12 side and the balance weight 13 side of the long frame material 11 do not coincide with each other, so that the balance weight 13 side of the long frame material 11 tends to fall. Since the support base 16 supports the long frame material 11, the operator 3 can stably pull out the long frame material 11 from the float bath 2 without applying an upward force to the handle. .

  Although the preferred embodiment has been described above, the present invention is not limited to this, and various applications can be considered.

DESCRIPTION OF SYMBOLS 1 Auxiliary apparatus 11 for float glass production Long frame material 12 Reception member 121 Support member 13 Balance weight 14 Handle 15 Support column 151 Wheel 152 Height adjustment means 153 Support column support frame 16 Support stand 161 Wheel 2 Float bath 21 Molten tin bath 22 Bottom Casing 23 Glass ribbon 3 Operator 4 Tin ingot

Claims (3)

An auxiliary device for producing float glass for supplying a tin ingot to a molten tin bath of a float bath,
A rigid long frame material,
It consists of a support that supports the long frame material,
The long frame material is
Has a handle and balance weight at one end,
It has a receiving member for holding the tin ingot at the other end,
The support column is provided at a position where moments of the receiving member side and the balance weight side of the long frame material substantially coincide with each other,
An auxiliary apparatus for manufacturing float glass, characterized by comprising moving means capable of moving the long frame material in the longitudinal direction. The tin ingot has a reverse convex cross section,
The receiving member has a shape matched to the tin ingot;
The receiving member has a pair of supporting members that support only the left and right shoulders of the tin ingot having the reverse convex cross-sectional shape on the left and right sides with respect to the longitudinal direction of the long frame material. The auxiliary device for producing float glass according to claim 1.
  The float glass manufacturing according to any one of claims 1 to 2, wherein a support base for supporting the long frame material is provided between the support column of the long frame material and the balance weight. Auxiliary equipment.

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