JP2024059125A - Vibration feeder - Google Patents

Vibration feeder Download PDF

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JP2024059125A
JP2024059125A JP2022166586A JP2022166586A JP2024059125A JP 2024059125 A JP2024059125 A JP 2024059125A JP 2022166586 A JP2022166586 A JP 2022166586A JP 2022166586 A JP2022166586 A JP 2022166586A JP 2024059125 A JP2024059125 A JP 2024059125A
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trough
vibrating feeder
powder
width
granular material
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允 石澤
健司 塩月
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JFE Steel Corp
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JFE Steel Corp
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Abstract

【課題】トラフの下流側において、粉粒体の詰まりや粉粒体が堰板を超えてトラフの外に毀れることを抑制できる振動フィーダを提供する。【解決手段】粉粒体が積載され、粉粒体の搬送方向が低くなるように傾斜して設けられるトラフと、トラフを加振する振動装置と、を有する振動フィーダであって、トラフの搬送方向の下流側の幅を上流側の幅より広くする。【選択図】図2[Problem] To provide a vibrating feeder that can prevent powder from clogging the downstream side of the trough or from going over a dam plate and breaking out of the trough. [Solution] This vibrating feeder has a trough that is loaded with powder and is inclined so that the powder is lowered in the conveying direction, and a vibrating device that vibrates the trough, and the width of the trough on the downstream side in the conveying direction is made wider than the width on the upstream side. [Selected Figure] Figure 2

Description

本発明は、粉粒体の詰まりや毀れを抑制できる振動フィーダに関する。 The present invention relates to a vibrating feeder that can prevent clogging and breakage of powder and granular materials.

鉄鉱石や石炭などの粉粒体は、ホッパなどの粉粒体の供給装置からベルトコンベア等で混錬機や焼結機等の処理装置に搬送されて処理される。粉粒体の供給装置からベルトコンベア等に粉粒体を積載させるため、粉粒体に振動を与えて搬送する振動フィーダが用いられる。この振動フィーダは、搬送方向が低くなるように傾斜させたトラフを振動させることで、トラフ上に積載した粉粒体を搬送するものである。振動装置として、電磁振動式や電動機駆動式が用いられることが多い。 Powdered materials such as iron ore and coal are transported from a powdered material supplying device such as a hopper to a processing device such as a kneader or sintering machine by a belt conveyor or the like for processing. In order to load the powdered materials from the powdered material supplying device onto a belt conveyor or the like, a vibrating feeder is used that vibrates the powdered materials to transport them. This vibrating feeder transports the powdered materials loaded on a trough by vibrating a trough that is inclined so that the conveying direction is low. Electromagnetic vibration or electric motor-driven types are often used as the vibrating device.

また、振動フィーダは、トラフの振動を制御することにより、粉粒体の搬送量や搬送速度を制御できて、前記鉄鉱石や石炭の他にも、骨材や土砂など広い範囲の粉粒体を扱うことができる。 In addition, by controlling the vibration of the trough, the vibrating feeder can control the amount and speed of powder and granular material being transported, and can handle a wide range of powder and granular materials, including aggregates, soil, and sand, in addition to the iron ore and coal mentioned above.

振動フィーダに関する技術として、特許文献1には、トラフの底板に開口部を自由に調整できるスリットが設けられた振動フィーダが開示されている。特許文献1によれば、当該スリットを設けることで、ベルトコンベアに積載される搬送物の厚さを変えながら、搬送物をベルトコンベアに搬送できるとしている。 As a technology related to vibrating feeders, Patent Document 1 discloses a vibrating feeder in which a slit is provided in the bottom plate of the trough, the opening of which can be freely adjusted. According to Patent Document 1, by providing the slit, it is possible to convey the objects to the belt conveyor while changing the thickness of the objects loaded on the belt conveyor.

また、特許文献2には、2台の振動フィーダを直列に並べて下流側の振動フィーダのトラフの幅が上流側の振動フィーダのトラフの幅より広い振動フィーダが開示されている。特許文献2によれば、扁平な部品を少量ずつ供給できるとしている。 Patent Document 2 also discloses a vibrating feeder in which two vibrating feeders are arranged in series, with the width of the trough of the downstream vibrating feeder being wider than the width of the trough of the upstream vibrating feeder. According to Patent Document 2, it is possible to feed small amounts of flat parts.

実開昭64-024026号公報Japanese Utility Model Application Publication No. 64-024026 特開2019-035601号公報JP 2019-035601 A

特許文献1、2に開示された振動フィーダは、1台あたりのトラフの幅が一定又は下流側ほど狭いため、搬送フィーダにその搬送能力の最大に近い粉粒体を供給すると、粉粒体がトラフの下流側に押し込まれて凝集しやすい。この粉粒体の凝集により、粉粒体の搬送性が低下し、粉粒体の詰まりが生じたり、粉粒体が堰板を超えてトラフの外に毀れるたりするという課題があった。本発明は、このような課題を鑑みてなされたものであり、その目的は、トラフの下流側において、粉粒体の詰まりや粉粒体が堰板を超えてトラフの外に毀れることを抑制できる振動フィーダを提供することである。 The vibrating feeders disclosed in Patent Documents 1 and 2 have a constant trough width per unit or a narrower width toward the downstream side, so when powder and granular material is supplied to the conveying feeder at a level close to the maximum of its conveying capacity, the powder and granular material are easily pushed into the downstream side of the trough and clumped together. This clumping of the powder and granular material reduces the conveyability of the powder and granular material, and there are problems with the powder and granular material clogging or being broken up outside the trough by going over the dam plate. The present invention was made in consideration of such problems, and its purpose is to provide a vibrating feeder that can suppress clogging of the powder and granular material on the downstream side of the trough and the powder and granular material being broken up outside the trough by going over the dam plate.

上記課題を解決するための手段は、以下の通りである。
[1]粉粒体が積載され、前記粉粒体の搬送方向が低くなるように傾斜して設けられるトラフと、前記トラフを加振する振動装置と、を有する振動フィーダであって、該振動フィーダ1台あたりで、前記トラフの搬送方向の下流側の幅は、前記トラフの搬送方向の上流側の幅より広い、振動フィーダ。
[2]前記トラフは搬送方向に2以上の底板を有し、前記2以上の底板の搬送方向下流が、前記トラフの幅を拡げる方向に移動可能に設けられる、[1]に記載の振動フィーダ。
[3]前記トラフは搬送方向に2以上の底板を有し、前記2以上の底板の搬送方向下流側が、搬送方向の上流側を支軸として、前記トラフの幅を拡げる方向に回動可能に設けられる、[1]に記載の振動フィーダ。
The means for solving the above problems are as follows.
[1] A vibrating feeder having a trough on which powder or granular material is loaded and which is inclined so that the powder or granular material is conveyed downward, and a vibrating device which vibrates the trough, wherein the width of the trough on the downstream side in the conveying direction of each vibrating feeder is wider than the width of the trough on the upstream side in the conveying direction.
[2] The vibrating feeder described in [1], wherein the trough has two or more bottom plates in the conveying direction, and the downstream of the two or more bottom plates in the conveying direction is arranged to be movable in a direction to expand the width of the trough.
[3] The vibrating feeder described in [1], wherein the trough has two or more bottom plates in the conveying direction, and the downstream sides of the two or more bottom plates in the conveying direction are arranged to be rotatable in a direction to expand the width of the trough, with the upstream sides in the conveying direction as a support axis.

本発明に係る振動フィーダのトラフは、該振動フィーダ1台あたり、上流側の幅よりも下流側の幅の方が広いので、粉粒体が下流側に押し込まれることが抑制され、粉粒体の凝集が抑制される。これにより、トラフの下流側において粉粒体の詰まりが生じたり、粉粒体が堰板を超えてトラフの外に毀れることを抑制できる。 The trough of the vibrating feeder according to the present invention is wider on the downstream side than on the upstream side per vibrating feeder, so the powder is prevented from being pushed downstream and the powder is prevented from clogging the downstream side of the trough, and the powder is prevented from breaking over the barrier and being thrown out of the trough.

図1は、従来の振動フィーダを示す模式図である。FIG. 1 is a schematic diagram showing a conventional vibrating feeder. 図2は、本実施形態に係る振動フィーダの一例を示す模式図である。FIG. 2 is a schematic diagram showing an example of a vibrating feeder according to the present embodiment. 図3は、本実施形態に係る振動フィーダの別例を示す模式図である。FIG. 3 is a schematic diagram showing another example of the vibrating feeder according to the present embodiment. 図4は、本実施形態に係る振動フィーダの別例を示すトラフ上面図である。FIG. 4 is a top view of a trough showing another example of the vibrating feeder according to the present embodiment. 図5は、実施例で用いた振動フィーダのトラフの上面図である。FIG. 5 is a top view of the trough of the vibrating feeder used in the examples.

以下、本発明について実施形態を通じて説明する。以下の実施形態は、本発明の好適な一例を示すものである。 The present invention will be described below through an embodiment. The following embodiment shows a preferred example of the present invention.

図1は、従来の振動フィーダ10を示す模式図である。図1(a)は、振動フィーダ10の側面図であり、図1(b)は、トラフ12の上面図である。図1を用いて、まず、従来の振動フィーダ10の構成を説明する。 Figure 1 is a schematic diagram showing a conventional vibrating feeder 10. Figure 1(a) is a side view of the vibrating feeder 10, and Figure 1(b) is a top view of the trough 12. First, the configuration of the conventional vibrating feeder 10 will be explained using Figure 1.

振動フィーダ10は、トラフ12と振動装置14とを有する。図1(b)に示すように、トラフ12は、底板20と、底板20の上流側及び幅方向の両側の3辺の位置に設けられる3つの堰板22とを有する。トラフ12は搬送方向下流側が低くなるように、水平方向に対して、例えば、10°傾斜して設けられる。 The vibrating feeder 10 has a trough 12 and a vibrating device 14. As shown in FIG. 1(b), the trough 12 has a bottom plate 20 and three dam plates 22 provided on the upstream side of the bottom plate 20 and on three sides on both sides in the width direction. The trough 12 is inclined, for example, by 10° with respect to the horizontal direction so that the downstream side in the conveying direction is lower.

振動装置14は、例えば、電磁振動式や電動駆動式である。振動装置14は、トラフ12を加振する。振動装置14の加振により、トラフ12の上に積載された粉粒体は、トラフ12の下流側に搬送される。振動装置14及びトラフ12は、吊り下げ具16によって、吊り下げられて設置するとよい。また、振動装置14及びトラフ12を架台に載せてもよい。 The vibration device 14 is, for example, an electromagnetic vibration type or an electrically driven type. The vibration device 14 vibrates the trough 12. By the vibration of the vibration device 14, the powder and granular material loaded on the trough 12 is transported to the downstream side of the trough 12. The vibration device 14 and the trough 12 are preferably installed by being suspended by a hanging device 16. The vibration device 14 and the trough 12 may also be placed on a stand.

従来の振動フィーダ10は、1台あたりのトラフ12の幅が一定又は下流側ほど狭かったので、振動フィーダ10にその搬送能力の最大に近い粉粒体を供給すると、粉粒体が下流側に押し込まれて凝集し、粉粒体の搬送性が低下する。この搬送性の低下により、トラフ12の下流側で粉粒体の詰まりが生じたり、粉粒体が堰板22を超えてトラフ12の外に毀れたりする。 In conventional vibrating feeders 10, the width of the trough 12 per unit is constant or narrower toward the downstream side, so when powder or granular material is supplied to the vibrating feeder 10 at a level close to the maximum of its conveying capacity, the powder or granular material is pushed downstream and clumps together, reducing the conveyability of the powder or granular material. This reduction in conveyability can cause the powder or granular material to become clogged downstream of the trough 12 or to break off outside the trough 12 by overflowing the dam plate 22.

図2は、本発明に係る振動フィーダ30の一例を示す模式図である。図2(a)は、振動フィーダ30の側面図であり、図2(b)は、上トラフ34及び下トラフ42の上面図である。 Figure 2 is a schematic diagram showing an example of a vibrating feeder 30 according to the present invention. Figure 2(a) is a side view of the vibrating feeder 30, and Figure 2(b) is a top view of the upper trough 34 and the lower trough 42.

上トラフ34は、底板50と、底板50の上流側の1辺及び幅方向の両側の2辺の位置に設けられる3つの堰板52とを有する。上トラフ34は搬送方向の下流側が低くなるように、例えば、水平方向に対して、10°傾斜して設けられる。 The upper trough 34 has a bottom plate 50 and three dam plates 52 provided on one upstream side of the bottom plate 50 and two sides on both sides in the width direction. The upper trough 34 is inclined, for example, at 10° with respect to the horizontal direction so that the downstream side in the conveying direction is lower.

下トラフ42は、上トラフ34の底板50の幅より広い底板54と、底板54の上流側の1辺及び幅方向の両側の2辺の位置に設けられる3つの堰板56とを有する。下トラフ42も搬送方向下流側が低くなるように、例えば、水平方向に対して10°傾斜して設けられる。振動装置36は、上トラフ34及び下トラフ42を加振する。振動装置36の加振により、上トラフ34及び下トラフ42の上に積載された粉粒体は、下流側に搬送される。 The lower trough 42 has a bottom plate 54 that is wider than the bottom plate 50 of the upper trough 34, and three dam plates 56 provided at one upstream side of the bottom plate 54 and two sides on both sides in the width direction. The lower trough 42 is also provided at an inclination of, for example, 10° with respect to the horizontal direction so that the downstream side in the conveying direction is lower. The vibration device 36 vibrates the upper trough 34 and the lower trough 42. By the vibration of the vibration device 36, the powder and granular material loaded on the upper trough 34 and the lower trough 42 is transported downstream.

上トラフ34の下流端と下トラフ42の上流端とは上下方向に重なるように設けられる。また、振動装置36、上トラフ34及び下トラフ42は、吊り下げ具38によって吊り下げて設置するとよいし、架台に載せてもよい。 The downstream end of the upper trough 34 and the upstream end of the lower trough 42 are arranged to overlap in the vertical direction. The vibration device 36, the upper trough 34, and the lower trough 42 may be installed by being suspended by a suspension device 38, or may be placed on a stand.

振動フィーダによる粉粒体の最大搬送量は、トラフ面積が広くなれば増加し、トラフ面積が狭くなると減少する。本実施形態に係る振動フィーダ30において、振動フィーダ1台あたりのトラフは上トラフ34と下トラフ42とを含んで構成され、下流側の下トラフ42の幅を上流側の上トラフ34の幅よりも広くしているので、粉粒体の最大搬送量は、上流側の上トラフ34よりも下流側の下トラフ42の方が多くなる。これにより、上トラフ34に最大搬送量となる粉粒体を供給したとしても、粉粒体の最大搬送量は上トラフ34よりも下トラフ42の方が多いので、粉粒体が下トラフ42に押し込まれることが抑制され、粉粒体の凝集も抑制される。この結果、トラフの下流側において粉粒体の詰まりが発生したり、粉粒体が堰板56を超えて下トラフ42の外に毀れることが抑制される。 The maximum amount of powder and granular material conveyed by the vibrating feeder increases as the trough area becomes wider, and decreases as the trough area becomes narrower. In the vibrating feeder 30 according to this embodiment, the trough per vibrating feeder is composed of an upper trough 34 and a lower trough 42, and the width of the lower trough 42 on the downstream side is wider than the width of the upper trough 34 on the upstream side, so that the maximum amount of powder and granular material conveyed is greater in the lower trough 42 on the downstream side than in the upper trough 34 on the upstream side. As a result, even if the maximum amount of powder and granular material is supplied to the upper trough 34, the maximum amount of powder and granular material conveyed is greater in the lower trough 42 than in the upper trough 34, so that the powder and granular material is prevented from being pushed into the lower trough 42 and the aggregation of the powder and granular material is also prevented. As a result, clogging of the powder and granular material on the downstream side of the trough and the powder and granular material being broken down outside the lower trough 42 beyond the dam plate 56 are prevented.

なお、トラフは1つのトラフで構成されてもよく、この場合、搬送方向の下流にいくに従って徐々にトラフの幅を広くしてもよく、途中からトラフの幅を広くしてもよい。 The trough may be composed of a single trough, in which case the width of the trough may be gradually increased as it moves downstream in the conveying direction, or the width of the trough may be increased halfway through.

図3は、本実施形態に係る振動フィーダの他の例を示す模式図である。図3(a)は、振動フィーダ60の側面図である。図3(b)、(c)は、上トラフ34及び下トラフ72の上面図であって、図3(b)は、下トラフ72の幅が上トラフ34と同じ状態を示す図であり、図3(c)は、下トラフ72が拡幅された状態を示す図である。なお、図3において、図2と同じ構成には同じ参照番号を付し、その説明を省略する。 Figure 3 is a schematic diagram showing another example of a vibrating feeder according to this embodiment. Figure 3(a) is a side view of a vibrating feeder 60. Figures 3(b) and 3(c) are top views of the upper trough 34 and the lower trough 72, with Figure 3(b) showing a state in which the width of the lower trough 72 is the same as that of the upper trough 34, and Figure 3(c) showing a state in which the width of the lower trough 72 has been increased. Note that in Figure 3, the same reference numbers are used for the same components as in Figure 2, and their explanations will be omitted.

振動フィーダ60の下トラフ72は、2枚の扇形の底板80a及び80bと、これらを回動可能に軸支する支軸76と、下トラフ72の両側の2辺の位置にそれぞれ設けられる堰板82a、82bと、底板80a、80bを支軸76回りに回動する駆動装置78とを有する。駆動装置78は、例えばモータである。 The lower trough 72 of the vibrating feeder 60 has two fan-shaped bottom plates 80a and 80b, a support shaft 76 that rotatably supports them, dam plates 82a, 82b provided at the two sides of the lower trough 72, and a drive unit 78 that rotates the bottom plates 80a, 80b around the support shaft 76. The drive unit 78 is, for example, a motor.

下トラフ72は搬送方向下流側が低くなるように、例えば、水平方向に対して10°傾斜して設けられる。振動装置36は、上トラフ34と下トラフ72を加振する。振動装置36の加振によって、上トラフ34と下トラフ72の上に積載された粉粒体は、下トラフ72の下流側に搬送される。 The lower trough 72 is inclined, for example, at 10° with respect to the horizontal direction so that the downstream side in the conveying direction is lower. The vibration device 36 vibrates the upper trough 34 and the lower trough 72. By the vibration of the vibration device 36, the powder and granular material loaded on the upper trough 34 and the lower trough 72 is transported to the downstream side of the lower trough 72.

駆動装置78は、支軸76を中心として2枚の底板80a、80bを回動させる。駆動装置78は、底板80a及び底板80bを下トラフ72の幅が拡がる方向にそれぞれ、例えば、13°回動させる。この回動により、下トラフ72の幅は拡幅され、下トラフ72の幅が上トラフ34の幅と同じであった従来の図3(b)の状態から、下トラフ72の幅が上トラフ34の幅より広い図3(c)の状態になる。このように、下トラフ72の幅を拡幅する拡幅機構は、2枚の扇型の底板80a、80bと、駆動装置78とで構成される。なお、堰板82a及び堰板82bの一部を下方向に移動可能に設け、底板80a及び底板80bを回動させるにあたり、上トラフ34の堰板52と下トラフ72の堰板82a及び堰板82bとの衝突を回避させてもよい。 The drive unit 78 rotates the two bottom plates 80a, 80b around the support shaft 76. The drive unit 78 rotates the bottom plates 80a and 80b, for example, by 13°, in the direction in which the width of the lower trough 72 is expanded. This rotation expands the width of the lower trough 72, changing it from the conventional state shown in FIG. 3(b) in which the width of the lower trough 72 is the same as that of the upper trough 34 to the state shown in FIG. 3(c) in which the width of the lower trough 72 is wider than that of the upper trough 34. In this way, the expansion mechanism for expanding the width of the lower trough 72 is composed of the two fan-shaped bottom plates 80a, 80b and the drive unit 78. In addition, a portion of the dam plate 82a and the dam plate 82b may be made movable downward to avoid collision between the dam plate 52 of the upper trough 34 and the dam plate 82a and the dam plate 82b of the lower trough 72 when the bottom plate 80a and the bottom plate 80b are rotated.

下トラフ72の幅が拡幅されることで、下トラフ72の面積は広くなる。上述したように、トラフ面積が広くなると振動フィーダの最大搬送量が増えるので、下トラフ72の面積が広げられた状態において、下トラフ72の粉粒体の最大搬送量は、上トラフ34の最大搬送量よりも多くなる。これにより、上トラフ34に最大搬送量となる粉粒体を供給したとしても、粉粒体の最大搬送量は上トラフ34よりも下トラフ72の方が多いので、粉粒体が下トラフ72に押し込まれることが抑制され、粉粒体の凝集が抑制される。この結果、粉粒体の詰まりの発生や、粉粒体が堰板82a、82bを超えて下トラフ72の外に毀れ出ることが抑制される。 By widening the width of the lower trough 72, the area of the lower trough 72 becomes wider. As described above, when the trough area becomes wider, the maximum conveying amount of the vibrating feeder increases, so when the area of the lower trough 72 is widened, the maximum conveying amount of powder and granular material in the lower trough 72 becomes greater than the maximum conveying amount in the upper trough 34. As a result, even if the maximum conveying amount of powder and granular material is supplied to the upper trough 34, the maximum conveying amount of powder and granular material is greater in the lower trough 72 than in the upper trough 34, so the powder and granular material is prevented from being pushed into the lower trough 72 and the aggregation of the powder and granular material is prevented. As a result, the occurrence of clogging of the powder and granular material and the powder and granular material being broken out of the lower trough 72 beyond the dam plates 82a, 82b are prevented.

また、振動フィーダの下流端の幅は、搬送先のベルトコンベアの幅に対応した幅にすることが求められる。例えば、搬送フィーダの下流端の幅がベルトコンベアの幅よりも著しく狭くなるとベルトコンベアの搬送量に対し、搬送フィーダからの供給量が少なくなってベルトコンベアの搬送効率が低下する。一方、搬送フィーダの下流端の幅がベルトコンベアの幅よりも広くなるとベルトコンベアから粉粒体が毀れてしまう。本実施形態に係る振動フィーダ60は下トラフ72の下流端の幅を変えることができるので、種々の幅のベルトコンベアに対応できる汎用性の高い振動フィーダとなる。 The width of the downstream end of the vibrating feeder must correspond to the width of the belt conveyor to which it is to be transported. For example, if the width of the downstream end of the transport feeder is significantly narrower than the width of the belt conveyor, the amount of material supplied from the transport feeder will be less than the amount of material transported by the belt conveyor, reducing the transport efficiency of the belt conveyor. On the other hand, if the width of the downstream end of the transport feeder is wider than the width of the belt conveyor, the powder and granular material will be broken off from the belt conveyor. The vibrating feeder 60 according to this embodiment can change the width of the downstream end of the lower trough 72, making it a highly versatile vibrating feeder that can accommodate belt conveyors of various widths.

なお、図3に示した振動フィーダ60では、下トラフ72が2枚の底板80a、80bを有し、底板80a、80bを13°ずつ回動させる例を示したがこれに限らない。下トラフ72は、底板を2枚以上有していればよく、その内の少なくとも1つの底板を下トラフ72の幅が拡がる方向に回動できればよい。さらに、図3に示した振動フィーダ60では、支軸76を中心にして底板80a、80bを回動させて下トラフ72の幅を拡幅する例を示したが、これに限らない。例えば、底板80a、80bが下トラフ72の幅方向に移動可能に設けられており、底板80a、80bを下トラフ72の幅が拡がる方向に移動させることで下トラフ72を拡幅してもよい。 In the vibrating feeder 60 shown in FIG. 3, the lower trough 72 has two bottom plates 80a, 80b, and the bottom plates 80a, 80b are rotated by 13° each, but this is not limited to the above. The lower trough 72 may have two or more bottom plates, and at least one of the bottom plates may be rotated in a direction in which the width of the lower trough 72 is increased. Furthermore, in the vibrating feeder 60 shown in FIG. 3, the bottom plates 80a, 80b are rotated around the support shaft 76 to increase the width of the lower trough 72, but this is not limited to the above. For example, the bottom plates 80a, 80b may be provided so as to be movable in the width direction of the lower trough 72, and the lower trough 72 may be increased by moving the bottom plates 80a, 80b in the direction in which the width of the lower trough 72 is increased.

図4は、本実施形態に係る振動フィーダ60の別例を示すトラフ上面図である。図4に示すように、上トラフ35及び下トラフ73を用いて、トラフ全長(上トラフ35に下トラフ73を加えたトラフ全長)に対し下流側が上流側より長くなる位置からトラフを拡幅できる構成にしてもよい。例えば、トラフ全長に対し下流側が4/5となるようにしてもよい。これにより、粘性があり、搬送性が低い粉粒体であっても、粉粒体の詰まりや毀れを抑制して搬送できる振動フィーダにすることができる。 Figure 4 is a top view of the trough showing another example of the vibrating feeder 60 according to this embodiment. As shown in Figure 4, the upper trough 35 and the lower trough 73 may be used to widen the trough from a position where the downstream side is longer than the upstream side in terms of the total length of the trough (total length of the trough including the upper trough 35 and the lower trough 73). For example, the downstream side may be 4/5 of the total length of the trough. This makes it possible to create a vibrating feeder that can transport powder and granules that are viscous and have low transportability while suppressing clogging and breakage.

なお、搬送フィーダにおいて、粉粒体の詰まりや毀れが発生しやすいのはトラフの下流側であることから、トラフの幅を拡げるトラフの下流側の範囲はトラフ全長に対し下流側1/4以上であればよい。なお、トラフの幅を拡げるトラフの下流側の範囲はトラフ全長に対し下流側1/2以上であることが好ましく、3/4以上であることがさらに好ましい。また、上述の上トラフ及び下トラフは振動フィーダ1台あたりに設ける。これにより、振動装置1台で効率良く粉粒体を搬送できて、稼働コストも低減でき、振動フィーダの設置も容易となる。 In a conveying feeder, powder and granular materials are likely to become clogged or broken on the downstream side of the trough, so the range of the downstream side of the trough where the width of the trough is expanded should be at least 1/4 of the total length of the trough on the downstream side. The range of the downstream side of the trough where the width of the trough is expanded should preferably be at least 1/2 of the total length of the trough on the downstream side, and more preferably at least 3/4. The above-mentioned upper trough and lower trough are provided for each vibrating feeder. This allows powder and granular materials to be transported efficiently with a single vibrating device, reduces operating costs, and makes it easier to install the vibrating feeder.

次に、本実施形態に係る振動フィーダを用いて石炭の搬送を実施した実施例を説明する。図5は、実施例で用いた振動フィーダのトラフの上面図である。図5(a)は、比較例として用いた従来の振動フィーダ10(図1(a)参照)のトラフの上面図であり、図5(b)は、本発明に係る振動フィーダ60(図3(a)参照)のトラフの上面図である。 Next, an example in which coal was transported using the vibrating feeder according to this embodiment will be described. Figure 5 is a top view of the trough of the vibrating feeder used in the example. Figure 5(a) is a top view of the trough of a conventional vibrating feeder 10 (see Figure 1(a)) used as a comparative example, and Figure 5(b) is a top view of the trough of a vibrating feeder 60 according to the present invention (see Figure 3(a)).

図5(a)に示した寸法のトラフを有する振動フィーダ10及び図5(b)に示した寸法のトラフを有する振動フィーダ60を石炭ホッパの出口に設置し、これらの振動フィーダを用いて、幅寸法が600mmのベルトコンベアに石炭を搬送した。振動フィーダ10及び振動フィーダ60の石炭の最大搬送量は約26ton/hrである。 A vibrating feeder 10 having a trough with the dimensions shown in FIG. 5(a) and a vibrating feeder 60 having a trough with the dimensions shown in FIG. 5(b) were installed at the outlet of a coal hopper, and these vibrating feeders were used to transport coal to a belt conveyor with a width of 600 mm. The maximum coal transport rate of the vibrating feeder 10 and the vibrating feeder 60 is approximately 26 tons/hr.

従来の振動フィーダ10を用いて、最大搬送量又はこの量に近い24.7~26.3ton/hrの石炭を供給してベルトコンベアに搬送させた。この結果、搬送開始から8時間後に振動フィーダ10の下流側で詰まりが発生し、石炭が堰板22を超えて毀れたため、石炭の搬送を中止する結果となった。 Using a conventional vibrating feeder 10, coal was supplied at or near the maximum transport rate of 24.7 to 26.3 tons/hr and transported to a belt conveyor. As a result, eight hours after transport began, a blockage occurred downstream of the vibrating feeder 10, and the coal exceeded the barrier plate 22 and was broken, resulting in the coal transport being halted.

本発明例に係る振動フィーダ60は、2つの底板80a、80bを13°ずつ幅を拡げる方向に回動させて、下トラフ72を拡幅した状態で、最大搬送量又はこの量に近い24.7~26.3ton/hrの石炭を供給してベルトコンベアに搬送させた。この結果、石炭の詰まりや毀れが発生することなく、24時間連続でホッパの石炭をベルトコンベアに搬送できた。 The vibrating feeder 60 according to the present invention rotates the two bottom plates 80a, 80b by 13° each in the direction of increasing the width, widening the lower trough 72, and supplies coal at the maximum conveying amount or close to this amount, 24.7 to 26.3 tons/hr, for transport to the belt conveyor. As a result, coal was transported from the hopper to the belt conveyor 24 hours continuously, without any clogging or breakage of the coal.

本発明例に係る振動フィーダ60では、2枚の底板をそれぞれ13°回動させて下トラフ72を拡幅したので、下トラフ72の面積は0.32mから0.37mに拡大した。これにより、下トラフ72の最大搬送量は約26ton/hrから約30ton/hrに増加し、この結果、振動フィーダ60の下流側での石炭の詰まりがなく、石炭が堰板52、82a、82bを超えて毀れだすことが抑制されたものと考えられる。 In the vibrating feeder 60 according to the present invention, the two bottom plates were each rotated 13° to widen the lower trough 72, and the area of the lower trough 72 was expanded from 0.32 m2 to 0.37 m2 . As a result, the maximum conveying amount of the lower trough 72 increased from about 26 tons/hr to about 30 tons/hr, and it is considered that as a result, coal was prevented from clogging downstream of the vibrating feeder 60 and the coal was prevented from exceeding the dam plates 52, 82a, and 82b and starting to break down.

10 従来の振動フィーダ
12 トラフ
14 振動装置
16 吊り下げ具
20 底板
22 堰板
30 本発明の振動フィーダ
34 上トラフ
35 上トラフ
36 振動装置
38 吊り下げ具
42 下トラフ
50 底板
52 堰板
54 底板
56 堰板
60 本発明の振動フィーダ
68 吊り下げ具
72 下トラフ
73 下トラフ
76 支軸
78 下トラフの駆動装置
80a 底板
80b 底板
82a 堰板
82b 堰板
REFERENCE SIGNS LIST 10 Conventional vibrating feeder 12 Trough 14 Vibrating device 16 Suspension device 20 Bottom plate 22 Dam plate 30 Vibrating feeder of the present invention 34 Upper trough 35 Upper trough 36 Vibrating device 38 Suspension device 42 Lower trough 50 Bottom plate 52 Dam plate 54 Bottom plate 56 Dam plate 60 Vibrating feeder of the present invention 68 Suspension device 72 Lower trough 73 Lower trough 76 Support shaft 78 Drive device for lower trough 80a Bottom plate 80b Bottom plate 82a Dam plate 82b Dam plate

Claims (3)

粉粒体が積載され、前記粉粒体の搬送方向が低くなるように傾斜して設けられるトラフと、前記トラフを加振する振動装置と、を有する振動フィーダであって、
該振動フィーダ1台あたりで、前記トラフの搬送方向の下流側の幅は、前記トラフの搬送方向の上流側の幅より広い、振動フィーダ。
A vibrating feeder having a trough on which powder or granular material is loaded and which is inclined so that a conveying direction of the powder or granular material is lower, and a vibrating device which vibrates the trough,
a width of the trough on a downstream side in the conveying direction per one vibrating feeder is wider than a width of the trough on an upstream side in the conveying direction.
前記トラフは搬送方向に2以上の底板を有し、前記2以上の底板の搬送方向下流が、前記トラフの幅を拡げる方向に移動可能に設けられる、請求項1に記載の振動フィーダ。 The vibrating feeder according to claim 1, wherein the trough has two or more bottom plates in the conveying direction, and the downstream side of the two or more bottom plates in the conveying direction is movable in a direction to expand the width of the trough. 前記トラフは搬送方向に2以上の底板を有し、前記2以上の底板の搬送方向下流側が、搬送方向の上流側を支軸として、前記トラフの幅を拡げる方向に回動可能に設けられる、請求項1に記載の振動フィーダ。 The vibrating feeder according to claim 1, wherein the trough has two or more bottom plates in the conveying direction, and the downstream sides of the two or more bottom plates in the conveying direction are rotatable in a direction to expand the width of the trough, with the upstream sides in the conveying direction as pivots.
JP2022166586A 2022-10-18 2022-10-18 Vibration feeder Pending JP2024059125A (en)

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