JPS6340730A - Device for feeding raw material to melting tank for glass - Google Patents

Device for feeding raw material to melting tank for glass

Info

Publication number
JPS6340730A
JPS6340730A JP18289886A JP18289886A JPS6340730A JP S6340730 A JPS6340730 A JP S6340730A JP 18289886 A JP18289886 A JP 18289886A JP 18289886 A JP18289886 A JP 18289886A JP S6340730 A JPS6340730 A JP S6340730A
Authority
JP
Japan
Prior art keywords
plate
raw material
glass
melting tank
louver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18289886A
Other languages
Japanese (ja)
Other versions
JPH0367973B2 (en
Inventor
Iwao Tokumasu
徳増 巌
Tadakazu Hitai
忠和 比田井
Toshikazu Kondo
近藤 敏和
Yoshikatsu Akiyama
義勝 秋山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP18289886A priority Critical patent/JPS6340730A/en
Publication of JPS6340730A publication Critical patent/JPS6340730A/en
Publication of JPH0367973B2 publication Critical patent/JPH0367973B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B3/00Charging the melting furnaces

Abstract

PURPOSE:To use a plate in both hands of a hot top and a cold top by enabling the plate wherein a glass raw material is fed to the upper surface thereof from a hopper to be progressed and backed to the upper part of glass stock incorporated in a melting tank. CONSTITUTION:A motor 12 is firstly driven and a dolly 8 is progressed and a plate 14 is progressed to such a position that nearly all ranges of the upper surface of a glass stock are covered thereby. Then a cylinder unit 33 is actuated to retract a piston rod 33a and louvers 30 are turned to the nearly vertical position. Thereby the lower parts of respective louvers 30... are entered in the glass raw material and this is comparted among respective louvers 30.... Then the motor 12 is contrarotated and both the dolly 8 and the plate 14 are backed. Thereby the glass raw material on the plate 14 uniformly falls on the surface of the glass stock successively from the tip thereof. Thereafter this operation is repeated in accordance with the height of the surface of the glass stock. On the other hand, in a hot top used with a burner, a charger for the raw material is taken off from a feeder 1 therefor and only the plate 14 and a hopper 21 are used.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はガラス原料を溶解槽に供給する装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an apparatus for supplying glass raw materials to a melting tank.

(従来の技術) ガラス原料の溶解槽を大別するとホラ))ツブ及びコー
ルドトップに分けられる。
(Prior art) Glass raw material melting tanks can be roughly divided into two types: whirlpools and cold tops.

ホットトップタイプの溶解槽は第6U;4に示すように
、溶解したガラス素地(G)を貯留する溶解槽(100
) (7)側壁(101) (7)側方に供給装ff1
(+02)及びホッパー(103)を配若し、供給装置
(102)は基台(+04)上にモータ(105)を設
け、このモータ(+05)の回転をカム(10B)及び
クランク(107)を介してプレート(108)に伝達
し、プレート(108)をガイドローラ(109)に沿
って図中矢印方向に進退動可能とし、この進退動を繰り
返すことで、ホッパー(103)から調整板(110)
を介してプレート(10B)上に供給されたガラス原料
(+11)を所定fづつガラス素地(G)上に投入し、
投入したガラス原料(Ill)をプレート先端に設けた
ブツシャ(+12)にて中央へ押し出し、このガラス原
料(111)を溶解槽(100)の上部側壁(天井部)
内に配置tシたバーナ等により加熱し、カラス素地(G
)とする。
As shown in No. 6U; 4, the hot top type melting tank is a melting tank (100
) (7) Side wall (101) (7) Supply device ff1 on the side
(+02) and a hopper (103), the feeding device (102) is equipped with a motor (105) on a base (+04), and the rotation of this motor (+05) is controlled by a cam (10B) and a crank (107). The signal is transmitted to the plate (108) through the guide roller (109), and the plate (108) can move forward and backward in the direction of the arrow in the figure along the guide roller (109). By repeating this forward and backward movement, the adjustment plate ( 110)
The glass raw material (+11) supplied onto the plate (10B) via the glass substrate (G) is charged in a predetermined amount f,
The charged glass raw material (Ill) is pushed out to the center by a pusher (+12) provided at the tip of the plate, and this glass raw material (111) is pushed out to the upper side wall (ceiling part) of the melting tank (100).
Heat it with a burner etc. placed inside the glass base (G
).

また、ホットトップタイプの溶解槽としては上述の他に
スクリューフィーダ、電磁フィーダ、ベルトフィーダ等
を用いたちの′もある。
In addition to the above-mentioned hot top type melting tanks, there are also those using screw feeders, electromagnetic feeders, belt feeders, etc.

一方、コールドトンブタイブの溶解槽は、溶解槽内に電
極体を配設し、カラス素地に電流を通し、抵抗による発
熱でガラス素地を昇温させ、ガラス素地表面に供給され
たガラス原料を溶融するものであり、このコールドトッ
プはガラス素地表面に均一にカラス原料を供給すること
で、ガラス原料を溶解槽の全表面から均一に溶解せしめ
ようとするものであり、ガラス素地表面はガラス原料に
て覆われるため比較的低温となる。
On the other hand, the Cold Tomb type melting tank has an electrode body installed in the melting tank, passes current through the glass base, heats up the glass base by heat generated by the resistance, and melts the glass raw material supplied to the surface of the glass base. This cold top attempts to melt the glass raw materials uniformly from the entire surface of the melting tank by uniformly supplying the glass raw materials to the glass base surface. The temperature is relatively low because it is covered with

(発明が解決しようとする問題点) に述したホットトップタイプの溶解槽にあっては、カラ
ス原料を溶解槽の入口部のみに落下せしめるため、コー
ルドトンブタイブの溶解槽として使用することができな
い。
(Problems to be Solved by the Invention) The hot top type melting tank described above allows the glass raw material to fall only into the inlet of the melting tank, so it cannot be used as a cold drop type melting tank. Can not.

また、一般にコールドトップタイプの溶解槽にあっては
、ベルトフィーダ等を用い、ガラス素地面にカラス原料
を均等に供給するようにしているが、ガラス素地面上方
の温度が400〜500℃程度まで上昇することがあり
、このような場合にはベルトフィーダか使用できなくな
る。
In addition, in general, in a cold top type melting tank, a belt feeder or the like is used to evenly feed the glass raw material onto the glass base surface, but the temperature above the glass base surface does not exceed 400 to 500 degrees Celsius. In such cases, the belt feeder becomes unusable.

(問題点を解決するだめの手段) 上記問題点を解決すべく本発明は、ホッパーからガラス
原料がその上面に供給されるプレートを、溶解槽のガラ
ス素地上方に進退動可能とし、更にプレート」1方には
プレートと別体としてルーバを備えた原料投入装置を配
置し、このルーバとプレートとの協動作動でガラス素地
面上にガラス原料を均等に落下せしめるようにした。
(Means for Solving the Problems) In order to solve the above problems, the present invention makes it possible to move a plate onto the upper surface of which glass raw materials are supplied from a hopper to above the glass base of the melting tank, and furthermore, the plate " On one side, a raw material feeding device equipped with a louver was arranged separately from the plate, and the glass raw material was made to fall evenly onto the glass base surface by the cooperative movement of the louver and the plate.

(作用) ルーへの下端が上方位置にあるときにプレートをガラス
素地面上方まで前進せしめ、次いでルーへの下端をガラ
ス原料内に位置させた状態でプレートを後退させること
で、ルーバによりガラス原料を掻き落す。
(Function) When the lower end of the louver is in the upper position, the plate is advanced to above the glass substrate surface, and then the plate is retreated with the lower end of the louver positioned within the glass raw material, so that the glass raw material is removed by the louver. scrape off.

また、ルーバを備えたガラス原料投入装置を取外すこと
で、ホットトップタイプの溶解槽としても使用できる。
Additionally, by removing the glass raw material charging device equipped with a louver, it can be used as a hot-top type melting tank.

(実施例) 以下に本発明の実施例を添付図面に基いて説明する。(Example) Embodiments of the present invention will be described below with reference to the accompanying drawings.

第1図は本発明に係る原料供給装置の全体正面図、第2
図は同原料供給装置の側面図、第3図は同原料供給装置
の平面図である。
FIG. 1 is an overall front view of the raw material supply device according to the present invention, and FIG.
The figure is a side view of the raw material supply device, and FIG. 3 is a plan view of the raw material supply device.

原料供給装置(1)は溶解槽(2)の側方に配置されて
いる。溶解槽(2)は溶融したガラス素地(G)を保持
する本体(2a)と、この本体(2a)上方に設けられ
る天井部(2b)とからなり、本体(2a)内にはコー
ルドトップとして用いる際にガラス素地(G)を通電に
より加熱する電極体(3)が配置され、本体(2d)底
部にはガラス素地(G)をフィーダ部に送るためのスロ
ート部(4)が形成され、また天井部(2b)内にはホ
ントトップとして用いる際にガラス原料を加熱溶融する
バーナ(5)を設けている。
The raw material supply device (1) is arranged on the side of the dissolution tank (2). The melting tank (2) consists of a main body (2a) that holds the molten glass base (G) and a ceiling (2b) provided above the main body (2a), and a cold top inside the main body (2a). An electrode body (3) is arranged to heat the glass substrate (G) by applying electricity during use, and a throat portion (4) for feeding the glass substrate (G) to the feeder section is formed at the bottom of the main body (2d). Further, a burner (5) for heating and melting the glass raw material when used as a real top is provided in the ceiling part (2b).

一方、原料供給装置(1)はフレーム(6)」−にレー
ル(7)を設け、このレール(7)上に台車(8)をキ
ャスター(9)及びガ・イドローラ(lO)を介して取
付け、台車(8)下面に固着したラック(11) (第
2図参照)を台車(8)下方に配置したモータ(12)
よって回転するギヤ(13)に+4合せしめている。而
してモータ(12)を正転又は逆転せしめることで台車
(8)はレール(7)に沿って前進動又は後退勤をなす
On the other hand, the raw material supply device (1) is provided with a rail (7) on the frame (6), and a cart (8) is mounted on this rail (7) via casters (9) and guide rollers (lO). , a motor (12) with a rack (11) fixed to the underside of the trolley (8) (see Figure 2) placed below the trolley (8).
Therefore, +4 is set to the rotating gear (13). By rotating the motor (12) in the forward or reverse direction, the truck (8) moves forward or backward along the rail (7).

また、台車(8)にはプレート(14)を傾斜角度を調
整可能に支持している。即ち、プレート(14)は内部
を中空状とし、この中空部内に冷却水を通すことでプレ
ー) (14)の冷却を行うようにし、またプレート(
14)の後端部はハンドル(15)を備えた高さ調整部
材(16)にて支持され、プレート(14)の中間部は
ハンドル(17)を備えた高さ調整部材(18)で支持
され、ハンドル(15) 、(17)を回転操作するこ
とで、プレー) (14)の傾斜角度が調整される。
Further, a plate (14) is supported on the truck (8) so that its inclination angle can be adjusted. That is, the plate (14) is hollow inside, and the plate (14) is cooled by passing cooling water through the hollow part.
14) The rear end is supported by a height adjustment member (16) with a handle (15), and the middle part of the plate (14) is supported by a height adjustment member (18) with a handle (17). By rotating the handles (15) and (17), the inclination angle of the play (14) is adjusted.

尚、プレート(14)の前端下部にはブツシャ(19)
を取付けている。
In addition, there is a button (19) at the bottom of the front end of the plate (14).
is installed.

また前記フレーム(6)には支柱(20) (第2図参
照)によってホッパー(21)を取付けている。このホ
ンバー(21)内にはガラス原料(22)が保持され、
ホンパー(21)の下端開口はプレー) (+4)上面
に対向し、下端開口の前方には調整板(23)が設けら
れ、下端開口の後方にはガラス原料(22)の戻りを防
1(二する規制板(24)が設けられている。
Further, a hopper (21) is attached to the frame (6) by a support (20) (see Fig. 2). A glass raw material (22) is held in this honbar (21),
(+4) An adjustment plate (23) is provided in front of the lower end opening facing the upper surface, and an adjusting plate (23) is provided behind the lower end opening to prevent the glass raw material (22) from returning. A second regulation plate (24) is provided.

また、プレート(14)の上方には原料投入装置(25
)を配設している。この原料投入装置(25)はプレー
) (14)の長さ方向に伸びる一対のアーム(28)
、(26)の基端部を前記ホッパー(21)の前面下部
に枢若し、アーム(2B)、(2B)の中間部をターン
/″−ンクル(27)を備えたロッド(28)にてホッ
パー(21)の前面上部に支持し、これらアーム(2B
)。
Also, above the plate (14) is a raw material input device (25).
) are installed. This raw material input device (25) is a pair of arms (28) extending in the length direction of (14)
, (26) are pivoted to the front lower part of the hopper (21), and the intermediate portions of the arms (2B), (2B) are attached to a rod (28) with a turn/inch (27). These arms (2B
).

(26)には前後方向に離間して複数のフィンガ一部(
29)・・・を下方に向けて垂設し、これらフィンガ一
部(29)・・・によってプレー) (+4)の巾方向
に伸びるルーバ(30)・・・の両側部を回転自在に支
承している。
(26) has a plurality of fingers spaced apart in the front-rear direction (
29)... are vertically installed downward, and some of these fingers (29)... are used to rotatably support both sides of the louver (30)... which extends in the width direction of (+4). are doing.

このルーバ(30)は下縁部の形状をノコ刃状とすると
ともに、ルーバ(30)・・・の上方には前後方向に伸
びるロッド(31)が配置され、このロッド(31)に
は下方に伸びる爪部(32)・・・が設けられ、この爪
部(32)・・・に各ルーバ(30)・・・の上縁中央
部を回転自在に連結し、またロッド頁31)の後端部は
ホッパー(21)の前面中央に支持したシリングユニ7
 ) (33)のピストンロッド(33a)前端に枢n
している。
The lower edge of this louver (30) has a sawtooth shape, and a rod (31) extending in the front-rear direction is arranged above the louver (30). A claw portion (32) extending from the louver (30) is rotatably connected to the claw portion (32), and the center portion of the upper edge of each louver (30) is rotatably connected to the claw portion (32). The rear end is a shilling unit 7 supported at the center of the front of the hopper (21).
) There is a pivot n at the front end of the piston rod (33a) of (33).
are doing.

而してピストンロッド(33a)が引っ込んだ状y魚に
あっては、第4図(A)に示すように各ルーバ(30)
・・・はフィンガ一部(29)の枢着点を中心に回動し
略垂直となっており、ピストン口、ド(33a)が突出
した状fbにあっては、第4図(B)に示すように各ル
ーバ(30)・・・は第4図(A)に示す状態から水平
に近い位置まで時計方向に回動する。
Therefore, if the piston rod (33a) is retracted, each louver (30)
... rotates around the pivot point of the finger part (29) and is approximately vertical, and in the state fb with the piston opening and door (33a) protruding, it is shown in Fig. 4(B). As shown in FIG. 4, each louver (30)... rotates clockwise from the state shown in FIG. 4(A) to a nearly horizontal position.

以」二の如き構成からなる原料供給装置の作用を以下に
説明する。
The operation of the raw material supply device having the configuration as shown in (2) below will be explained below.

電極棒(3)を使用し、八−す(5)を使用しないコー
ルドトップを行う場合を、台車(8)及びプレー) (
14)が後退し、原料投入装置(25)のルーバ(30
)が第4図(B)に示すように水平近くまで回動してい
る状態を出発点として説明する。
When performing a cold top using the electrode rod (3) and not using the eighth (5), the trolley (8) and play) (
14) retreats, and the louver (30) of the raw material input device (25)
) is rotated nearly horizontally as shown in FIG. 4(B).

先ず上記した状態からモータ(12)を駆動し、台車(
8)を前進させ、プレート(14)をガラス素地(G)
上面の略全域を覆う位置まで前進させる。この場合、ル
ーバ(30)の下端部はプレート(14)上面にホッパ
ー(21)から供給されたガラス原料(22)よりも高
位置にあるため、ガラス原料(22)がルーバ(30)
の下端に干渉することはない。
First, the motor (12) is driven from the above state, and the trolley (
8), move the plate (14) forward and place the plate (14) on the glass substrate (G).
Advance it until it covers almost the entire top surface. In this case, since the lower end of the louver (30) is located on the upper surface of the plate (14) at a higher position than the frit (22) supplied from the hopper (21), the frit (22) is placed in the louver (30).
It will not interfere with the bottom edge of the

次いでシリンダユニッ) (33)を作動させピストン
ロッド(33a)を引込ませて、ルーバ(30)を第4
図(A)に示す略垂直位置まで回動する。するとルーバ
(30)の下端が下方位置となり、第1図に示すように
各ルーバ(30)・・・の下部がプレート(14)上面
に載置されているガラス原料(22)内に入り込み、各
ルーバ(30)・・・間でガラス原料(22)を区画す
る。
Next, operate the cylinder unit (33) to retract the piston rod (33a) and move the louver (30) to the fourth position.
Rotate to the approximately vertical position shown in Figure (A). Then, the lower ends of the louvers (30) are in the lower position, and as shown in FIG. The glass raw material (22) is divided between each louver (30).

この後、モータ(12)を逆回転させ、台車(8)及び
プレー) (14)を後退させる。するとルーバ(30
)はそのままの位置にあるため、プレート(4)の後退
によりプレート(14)上のガラス原料(22)は先端
のものから順次ガラス素地(G)表面に均等に落下する
。以後この操作をガラス素地面の高さに応じて繰り返す
After this, the motor (12) is reversely rotated to move the trolley (8) and play (14) backward. Then Louva (30
) remain in the same position, the glass raw materials (22) on the plate (14) drop uniformly onto the surface of the glass substrate (G) in order from the tip as the plate (4) retreats. Thereafter, this operation is repeated depending on the height of the glass base surface.

−・方、バーナ(5)を使用するホットトップにあって
は、原料供給装置(1)から原料投入装置(25)を取
外し、プレート(14)及びホッパー(21)のみを使
用する。
- On the other hand, in a hot top using a burner (5), the raw material input device (25) is removed from the raw material supply device (1) and only the plate (14) and hopper (21) are used.

即ち、ホットトップの場合にあっては、プレート(14
)の先端部を溶解槽(2)の奥まで前進させず、入口部
近くで止め、更にハンドル(+5) 、(17)を操作
してプレー) (14)を前傾せしめ、この状態で台車
(8)を進退動することでガラス原料(22)を側壁(
2a)に近い部分のガラス素地(G)」−面に落下せし
める。
That is, in the case of a hot top, the plate (14
) Don't advance the tip of the melting tank (2) all the way to the back of the melting tank (2), but stop it near the entrance, then operate the handles (+5) and (17) to tilt the (14) forward, and in this state, move the trolley. (8) moves back and forth to move the glass raw material (22) to the side wall (
2a) Let it fall onto the surface of the glass base (G) in the area near it.

第5図はルーバ(30)の配置の別実施例を示す模式的
平面図であり、前記実施例にあっては各ルーバ(30)
の長さを等しくしたが、この実施例にあっては中央部の
ルーバ(30)の長さを長く、前部及び後部のルー/<
(30)の長さを短くしている。このようにすることで
、溶解槽表面が6角形の場合でも、ガラス原料をガラス
素地表面に均等に落下させることができる。
FIG. 5 is a schematic plan view showing another embodiment of the arrangement of the louvers (30), and in the embodiment, each louver (30)
In this embodiment, the central louver (30) is made longer, and the front and rear louvers (30) are made equal in length.
The length of (30) is shortened. By doing so, even if the surface of the melting tank is hexagonal, the glass raw material can be evenly dropped onto the surface of the glass substrate.

更に図示例にあってはルーバ(30)を回動せしめるこ
とで、ルーz<(3Q)の下端位置を変化させるように
したが、カム或いはリンク機構を用いてルー八(30)
を直線的に上下動させるものでもよい。
Furthermore, in the illustrated example, the lower end position of the louver (30) is changed by rotating the louver (30).
It may be one that moves up and down in a straight line.

(発明の効果) 以上に説明した如く本発明に係るガラス原料供給装置は
ホットトップ及びコールドトップの双方に使用すること
ができ、特にコールドトップに用いる場合には、カラス
原料をガラス素地上面に均等に落下せしめることができ
、更に従来のベルトフィーグ等と比較し耐熱性の面でも
大巾に優れる。
(Effects of the Invention) As explained above, the glass raw material supply device according to the present invention can be used for both hot tops and cold tops, and especially when used for cold tops, the glass raw materials are distributed evenly over the surface of the glass substrate. It can be dropped easily, and it is also far superior in terms of heat resistance compared to conventional belt figs.

【図面の簡単な説明】 第1図は本発明に係るガラス原料供給装置の正面図、第
2図は同原料供給装置の側面図、第3図は同原料供給装
置の平面図、第4図(A)及び(B)はルーバの動きを
説明した図、第5図はルーバの配置の別実施例を示す平
面図、第6図は従来の原料供給装置の正面図である。 尚1図面中(1)は原料供給装置、(2)は溶解槽、(
3)は電極棒、(5)はバーナ、(8)は台車、(14
)はプレート、(21)はホッパー、(22)はガラス
原料、(25)は原料投入装置、(30)はルーバ、C
G)はガラス素地である。
[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a front view of the glass raw material supply device according to the present invention, FIG. 2 is a side view of the raw material supply device, FIG. 3 is a plan view of the raw material supply device, and FIG. 4 (A) and (B) are diagrams explaining the movement of the louver, FIG. 5 is a plan view showing another embodiment of the arrangement of the louver, and FIG. 6 is a front view of a conventional raw material supply device. In one drawing, (1) is a raw material supply device, (2) is a dissolution tank, (
3) is an electrode rod, (5) is a burner, (8) is a trolley, (14)
) is a plate, (21) is a hopper, (22) is a glass raw material, (25) is a raw material input device, (30) is a louver, C
G) is a glass substrate.

Claims (1)

【特許請求の範囲】[Claims] ガラス溶解槽内の素地面上方に進退自在とされたプレー
トと、このプレート上面にガラス原料を供給するホッパ
ーと、前記プレート上方にプレートとは別体として配設
された原料投入装置とからなり、この原料投入装置はプ
レートの巾方向に伸びる複数のルーバを備え、このルー
バの下端はプレートが素地面上方に前進する際にはプレ
ート上面のガラス原料よりも上方に位置し、プレートが
後退する際にはプレート上面のガラス原料中に位置する
ようになっていることを特徴とするガラス溶解槽への原
料供給装置。
It consists of a plate that can freely move forward and backward above the base surface in the glass melting tank, a hopper that supplies glass raw materials to the upper surface of this plate, and a raw material input device that is arranged above the plate separately from the plate, This raw material input device is equipped with a plurality of louvers extending in the width direction of the plate, and the lower end of the louver is located above the glass raw material on the top surface of the plate when the plate advances above the base surface, and when the plate retreats. A raw material supply device to a glass melting tank is characterized in that the device is positioned in the glass raw material on the upper surface of the plate.
JP18289886A 1986-08-04 1986-08-04 Device for feeding raw material to melting tank for glass Granted JPS6340730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18289886A JPS6340730A (en) 1986-08-04 1986-08-04 Device for feeding raw material to melting tank for glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18289886A JPS6340730A (en) 1986-08-04 1986-08-04 Device for feeding raw material to melting tank for glass

Publications (2)

Publication Number Publication Date
JPS6340730A true JPS6340730A (en) 1988-02-22
JPH0367973B2 JPH0367973B2 (en) 1991-10-24

Family

ID=16126311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18289886A Granted JPS6340730A (en) 1986-08-04 1986-08-04 Device for feeding raw material to melting tank for glass

Country Status (1)

Country Link
JP (1) JPS6340730A (en)

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Also Published As

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