JP7419657B2 - Chain conveyor device and its operating method - Google Patents

Chain conveyor device and its operating method Download PDF

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JP7419657B2
JP7419657B2 JP2019029464A JP2019029464A JP7419657B2 JP 7419657 B2 JP7419657 B2 JP 7419657B2 JP 2019029464 A JP2019029464 A JP 2019029464A JP 2019029464 A JP2019029464 A JP 2019029464A JP 7419657 B2 JP7419657 B2 JP 7419657B2
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康夫 村井
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Description

本発明は、石炭、石膏、木粉、穀類などの粉粒体を連続的に搬送することができるチェーン式コンベア装置及びその運転方法に関する。 The present invention relates to a chain-type conveyor device that can continuously convey granular materials such as coal, gypsum, wood flour, and grains, and a method of operating the same.

粉粒体の石炭、石膏、木粉、穀類などをほぼ水平方向に搬送する装置にチェーン式コンベアがある。このチェーン式コンベアは、搬送方向に長く形成した四角断面のダクトの空間内部に搬送物となる粉粒体を受け入れてダクト空間内を搬送移動させている(例えば特許文献1、2に開示あり)。
図3は従来のチェーン式コンベア装置の説明図であり、(1)は一部拡大した平面図、(2)は一部拡大した側面図、(3)は一部拡大した正面図である。ダクト1内の底面にコンベアチェーン2と、コンベアチェーン2の左右に粉粒体を搬送方向に押す搬送プレート3を取り付けて、コンベアチェーン2を無端状に連結して、ダクト1空間の長手方向に一方から粉粒体を受け入れて他方の搬送先に排出している(図3(1)参照)。
排出部は、空間の底部に開口部を設けて、コンベアチェーン2及び搬送プレート3によって掻き寄せられた粉粒体を落下させる構造が一般的に採用されている。
このとき単位時間当たりの搬送量は、粉粒体を搬送する空間の充填量によって決まる。充填量が多い(搬送負荷が大きい)場合は、四角断面の内壁を粉粒体が滑りながら搬送されて、粉粒体の移動方向の反力と自重によって、コンベアチェーン2と搬送プレート3が自由な動きをすることなく、コンベアチェーン2の引張方向へ搬送移動する。
A chain conveyor is a device that transports granular materials such as coal, gypsum, wood flour, and grain in a nearly horizontal direction. This chain-type conveyor receives powder and granular material, which is a conveyed object, into the space of a duct with a rectangular cross section that is formed long in the conveyance direction, and conveys and moves it within the duct space (for example, disclosed in Patent Documents 1 and 2). .
FIG. 3 is an explanatory diagram of a conventional chain conveyor device, in which (1) is a partially enlarged plan view, (2) is a partially enlarged side view, and (3) is a partially enlarged front view. A conveyor chain 2 is attached to the bottom of the duct 1, and conveyor plates 3 that push the powder and granules in the conveying direction are attached to the left and right sides of the conveyor chain 2, and the conveyor chains 2 are connected endlessly to the longitudinal direction of the duct 1 space. Powder is received from one side and discharged to the other destination (see Fig. 3 (1)).
The discharge section generally has a structure in which an opening is provided at the bottom of the space and the powder and granules scraped together by the conveyor chain 2 and the conveyor plate 3 are dropped.
At this time, the amount of conveyance per unit time is determined by the amount of filling of the space in which the granular material is conveyed. When the amount of filling is large (the conveyance load is large), the powder and granules are conveyed while sliding on the inner wall of the square cross section, and the conveyor chain 2 and conveyance plate 3 are freed by the reaction force in the direction of movement of the powder and their own weight. The conveyor chain 2 is conveyed and moved in the tensile direction without any movement.

そしてダクト内部は、粉粒体で充填されているので、コンベアチェーン2と空間内壁の摺動音が遮音されている。さらに空間内壁の振動(内壁の可動を抑制する)も搬送物の内壁を押す力で振動を抑えられるので騒音や振動の影響は少ない。
しかしながら、搬送空間内の充填量が少なくなる(搬送負荷(以下単に負荷ということあり)が小さい)と、コンベアチェーン2と内壁底部に取り付けられたレール側面の摺動音が、充填物によって吸収されて抑えられることなく、騒音の悪影響が顕在化する。内部空間が多くなると内部で発生した摺動音が共鳴箱の効果でさらに増幅される。
例えば移動によって、チェーンローラが摩耗して、ローラ高さ寸法が小さくなると、コンベアチェーン2のリンクプレートや搬送プレート3が内部で接触し騒音発生の機会が増える(図3(2)参照)。さらに、搬送量が少なくなるとダクト1内に投入された粉粒体が、コンベアチェーン2の左右均等に落下することが困難となって、左右のいずれかに偏ってしまい、負荷のアンバランスが生じる(図3(3)参照)。
その結果、コンベアチェーン2が蛇行して、コンベアチェーン2のリンクプレートとチェーンレールの側面が接触して擦れ音が発生する。負荷が少ない状態において、ダクト1内壁が振動して共鳴箱のように騒音が発生するトラブルが発生する。その他にも、搬送プレート3に作用する回転力によって、コンベアチェーン2のリンクプレートや搬送プレート3が回転方向に動いて、内壁と接触する機会が増えて騒音発生の主な原因となっていた。
Since the inside of the duct is filled with powder, the sliding noise between the conveyor chain 2 and the inner wall of the space is insulated. Furthermore, the vibration of the inner wall of the space (suppressing the movement of the inner wall) can be suppressed by the force of pushing the inner wall of the transported object, so the influence of noise and vibration is small.
However, when the amount of filling in the conveyance space decreases (the conveyance load (hereinafter simply referred to as load) is small), the sliding noise of the conveyor chain 2 and the side of the rail attached to the bottom of the inner wall is absorbed by the filling. The negative effects of noise become apparent without being suppressed. When the internal space increases, the sliding noise generated inside is further amplified by the effect of the resonance box.
For example, when the chain rollers are worn due to movement and the height of the rollers becomes smaller, the link plates of the conveyor chain 2 and the conveyance plate 3 come into contact with each other internally, increasing the chance of noise generation (see FIG. 3 (2)). Furthermore, when the amount of conveyance decreases, it becomes difficult for the powder and granules introduced into the duct 1 to fall evenly on the left and right sides of the conveyor chain 2, resulting in an unbalanced load. (See Figure 3 (3)).
As a result, the conveyor chain 2 meanderes, and the link plates of the conveyor chain 2 come into contact with the side surfaces of the chain rails, producing a rubbing noise. When the load is low, the inner wall of the duct 1 vibrates, causing a problem in which noise is generated like a resonance box. In addition, due to the rotational force acting on the conveyor plate 3, the link plates of the conveyor chain 2 and the conveyor plate 3 move in the rotational direction, increasing the chances of contact with the inner wall, which is a main cause of noise generation.

特開2003-237924号公報JP2003-237924A 特許第5931651号公報Patent No. 5931651

本発明が解決しようとする課題は、上記従来技術の問題点に鑑み、チェーン式コンベアの搬送負荷状況によって変化するコンベア運転の騒音を低減できるチェーン式コンベア装置及びその運転方法を提供することにある。 The problem to be solved by the present invention is to provide a chain-type conveyor device and its operating method that can reduce the noise of the conveyor operation, which changes depending on the conveyance load condition of the chain-type conveyor, in view of the above-mentioned problems of the prior art. .

本発明は、上記課題を解決するための第1の手段として、一端に粉粒体の供給口と他端に排出口を有するダクトと、前記ダクト内に配置する駆動スプロケット及び従動スプロケットと、前記駆動スプロケット及び従動スプロケットにかけ渡して循環移動するコンベアチェーンと、前記コンベアチェーンのリンクプレートの両側面に固定して搬送方向と交差する方向に延出して前記コンベアチェーンの循環移動に伴って前記ダクト内の前記粉粒体を搬送方向に押し出す搬送プレートと、を有するチェーン式コンベア装置において、
前記供給口に接続する供給手段から供給される前記粉粒体の搬送量を計測する計量部と、
前記計量部と、前記駆動スプロケットに接続する駆動モータと電気的に接続して、前記計量部の測定値が、設定搬送負荷よりも大きいとき前記駆動モータの設定速度よりも速くし、前記設定搬送負荷以下のとき前記設定速度以下の低速にする制御を行う制御部と、
を備えたことを特徴とするチェーン式コンベア装置を提供することにある。
上記第1の手段によれば、搬送負荷が少なくなったときに発生する金属擦れ音などの騒音を効果的に防止できる。
As a first means for solving the above problems, the present invention provides a duct having a powder supply port at one end and a discharge port at the other end, a driving sprocket and a driven sprocket disposed in the duct, and a driving sprocket and a driven sprocket arranged in the duct. A conveyor chain that circulates around a driving sprocket and a driven sprocket, and a conveyor chain that is fixed to both sides of link plates of the conveyor chain and extends in a direction intersecting the conveyance direction and that is attached to the inside of the duct as the conveyor chain circulates. a conveyor plate that pushes out the powder or granular material in the conveyance direction,
a measuring unit that measures the conveyance amount of the powder and granular material supplied from the supply means connected to the supply port;
The measuring unit is electrically connected to a drive motor connected to the drive sprocket, and when the measured value of the measuring unit is larger than a set conveyance load, the speed is set higher than the set speed of the drive motor, and the set conveyance is increased. a control unit that controls the speed to be lower than the set speed when the load is lower than the set speed;
An object of the present invention is to provide a chain-type conveyor device characterized by comprising:
According to the first means, it is possible to effectively prevent noise such as metal scraping noise that occurs when the conveyance load is reduced.

本発明は、上記課題を解決するための第2の手段として、一端に粉粒体の供給口と他端に排出口を有するダクトと、前記ダクト内に配置する駆動スプロケット及び従動スプロケットと、前記駆動スプロケット及び従動スプロケットにかけ渡して循環移動するコンベアチェーンと、前記コンベアチェーンのリンクプレートの両側面に固定して搬送方向と交差する方向に延出して前記コンベアチェーンの循環移動に伴って前記ダクト内の前記粉粒体を搬送方向に押し出す搬送プレートと、を有するチェーン式コンベア装置の運転方法において、
前記供給口に接続する供給手段から供給される前記粉粒体の搬送量を計測する工程と、
前記粉粒体の計量測定値が設定搬送負荷よりも大きいとき前記駆動スプロケットに接続する駆動モータの設定速度よりも速くし、前記設定搬送負荷以下のとき前記設定速度以下の低速にする制御を行う工程と、
を有することを特徴とするチェーン式コンベア装置の運転方法を提供することにある。
上記第2の手段によれば、搬送負荷が少なくなったときに発生する金属擦れ音などの騒音を効果的に防止できる。
As a second means for solving the above problems, the present invention provides a duct having a powder supply port at one end and a discharge port at the other end, a driving sprocket and a driven sprocket disposed in the duct, and a driving sprocket and a driven sprocket arranged in the duct. A conveyor chain that circulates across a driving sprocket and a driven sprocket, and a conveyor chain that is fixed to both sides of link plates of the conveyor chain and extends in a direction intersecting the conveyance direction and that is attached to the inside of the duct as the conveyor chain circulates. A method for operating a chain conveyor device, comprising: a conveyor plate that pushes out the powder or granular material in a conveyance direction;
a step of measuring the conveyance amount of the powder and granular material supplied from the supply means connected to the supply port;
When the measured value of the powder or granular material is larger than the set transport load, the speed is set higher than the set speed of the drive motor connected to the drive sprocket , and when it is lower than the set transport load, the speed is controlled to be lower than the set speed. process and
An object of the present invention is to provide a method of operating a chain type conveyor device, which is characterized by having the following.
According to the second means, it is possible to effectively prevent noise such as metal scraping noise that occurs when the conveyance load decreases.

本発明によれば、コンベアに供給される負荷を上流側設備で計量して、設定搬送負荷以下のときにコンベア装置の搬送速度を遅くする制御をしている。これにより、省エネ、摩耗寿命改善、騒音低減などに有効となる。 According to the present invention, the load supplied to the conveyor is measured by the upstream equipment, and the conveyance speed of the conveyor device is controlled to be slowed when the load is equal to or less than the set conveyance load. This is effective in saving energy, improving wear life, reducing noise, etc.

本発明のチェーン式コンベア装置の概略構成図である。1 is a schematic configuration diagram of a chain conveyor device of the present invention. 搬送速度と搬送負荷の関係を示すグラフである。It is a graph showing the relationship between conveyance speed and conveyance load. 従来のチェーン式コンベア装置の説明図である。FIG. 2 is an explanatory diagram of a conventional chain conveyor device.

本発明のチェーン式コンベア装置及びその運転方法の実施形態について、図面を参照しながら、以下詳細に説明する。
[チェーン式コンベア装置10]
図1は、本発明のチェーン式コンベア装置の概略構成図である。図示のように本発明のチェーン式コンベア装置10(以下、単にコンベア装置10ということあり)は、一端に粉粒体12の供給口22と他端に排出口24を有するダクト1と、前記ダクト1内に配置する駆動スプロケット30及び従動スプロケット32と、前記駆動スプロケット30及び従動スプロケット32にかけ渡して循環移動するコンベアチェーン2と、前記コンベアチェーン2の両側面から搬送方向と交差する方向に延出して前記ダクト1内の前記粉粒体12を搬送方向に押し出す搬送プレート3と、前記供給口22に接続する供給手段14から供給される前記粉粒体12の搬送量を計測する計量部50と、前記計量部50と、前記駆動スプロケット30に接続する駆動モータ31と電気的に接続して、前記計量部50の測定値が、設定搬送負荷よりも大きいとき前記駆動モータ31の設定速度よりも速くし、前記設定搬送負荷以下のとき前記設定速度以下の低速にする制御を行う制御部60と、を備えている。
Embodiments of the chain type conveyor device and its operating method of the present invention will be described in detail below with reference to the drawings.
[Chain conveyor device 10]
FIG. 1 is a schematic configuration diagram of a chain conveyor device of the present invention. As shown in the figure, a chain type conveyor device 10 (hereinafter simply referred to as conveyor device 10) of the present invention includes a duct 1 having a supply port 22 for powder and granular material 12 at one end and a discharge port 24 at the other end. a driving sprocket 30 and a driven sprocket 32 disposed within the conveyor chain 1; a conveyor chain 2 that circulates across the driving sprocket 30 and the driven sprocket 32; and a conveyor chain 2 extending from both sides of the conveyor chain 2 in a direction intersecting the conveyance direction. a conveyor plate 3 that pushes out the powder or granular material 12 in the duct 1 in the conveyance direction; and a measuring section 50 that measures the conveyance amount of the powder or granular material 12 supplied from the supply means 14 connected to the supply port 22. , the measuring section 50 is electrically connected to the driving motor 31 connected to the driving sprocket 30, so that when the measured value of the measuring section 50 is larger than the set conveyance load, the speed is lower than the set speed of the driving motor 31. and a control unit 60 that performs control to increase the speed and reduce the speed to below the set speed when the transport load is below the set conveyance load.

計量部50は、供給口22に接続するコンベア、ホッパ、シュートなどの供給手段14から供給される粉粒体12の搬送量を計測している。本実施形態の供給手段14は、船、車両、貨車などから投入されるコンベア、ホッパ、シュート、バケット、ホイルローダなどの搬送設備である。このような搬送設備からコンベア装置10に供給される粉粒体による負荷は一定ではなく変動している。本実施形態の搬送量は、コンベア装置10に対する搬送される粉粒体の負荷(搬送負荷)とみなし、搬送量が多いとき搬送負荷が大きく、搬送量が少ないとき搬送負荷が小さくなる。 The measuring unit 50 measures the conveyance amount of the powder or granular material 12 supplied from the supply means 14 such as a conveyor, hopper, or chute connected to the supply port 22 . The supply means 14 of this embodiment is conveyance equipment such as a conveyor, hopper, chute, bucket, or wheel loader that is fed from a ship, vehicle, freight car, or the like. The load caused by the powder and granular material supplied from such conveyance equipment to the conveyor device 10 is not constant but fluctuates. The amount of conveyance in this embodiment is regarded as the load (conveyance load) of the transported powder or granular material on the conveyor device 10, and when the amount of conveyance is large, the conveyance load is large, and when the amount of conveyance is small, the conveyance load is small.

制御部60は、計量部50と駆動スプロケット30に接続する駆動モータ31と電気的に接続している。制御部60は、計量部50の測定値となる搬送量、換言すると搬送負荷に基づいて、駆動モータ31の回転速度(コンベアチェーン2の搬送速度)を制御している。より具体的な制御部の制御は、コンベアチェーン2への投入量が少ない、換言すると搬送量が少ないときに生じる搬送プレートの左右の負荷が不均一の蛇行、かつダクト1の側壁と接触する金属擦れ音や、搬送プレートに傾く反力が作用して搬送プレートを固定しているリンクプレートが持ち上がり底面と局部接触して金属擦れ音が発生しないように、駆動モータ31へ搬送速度を遅くする制御信号を送る。
図2は搬送速度と搬送負荷の関係を示すグラフである。制御信号は、一例として、あらかじめ設定搬送負荷(図2中のA)と、このときの設定搬送速度Bを設定しておき、測定値がこの設定搬送負荷Aよりも大きいとき、設定搬送速度(図2中のB)よりも速く搬送する。例えば、搬送負荷の増加に比例して搬送速度を増加させる設定を行っている。この他、設定速度よりも速い任意の定速で搬送しても良い。そして、測定値が設定搬送負荷以下のとき、設定搬送速度以下の低速となるように設定している。
The control section 60 is electrically connected to the measuring section 50 and the drive motor 31 that is connected to the drive sprocket 30 . The control unit 60 controls the rotational speed of the drive motor 31 (the conveyance speed of the conveyor chain 2) based on the conveyance amount, which is the measured value of the measuring unit 50, in other words, the conveyance load. More specifically, the control unit controls the meandering of the conveyor plate with uneven loads on the left and right sides that occur when the amount of input to the conveyor chain 2 is small, in other words, when the amount of conveyance is small, and the metal contact with the side wall of the duct 1. Control is applied to the drive motor 31 to slow down the conveyance speed to prevent scraping noises and metal scraping noises caused by the reaction force acting on the conveyor plate that causes the link plate fixing the conveyor plate to lift up and make local contact with the bottom surface of the conveyor plate. send a signal.
FIG. 2 is a graph showing the relationship between conveyance speed and conveyance load. As an example, the control signal is such that a set conveyance load (A in FIG. 2) and a set conveyance speed B at this time are set in advance, and when the measured value is larger than the set conveyance load A, the set conveyance speed ( It is transported faster than B) in FIG. For example, the conveyance speed is set to increase in proportion to the increase in conveyance load. In addition, it may be conveyed at any constant speed faster than the set speed. When the measured value is less than or equal to the set conveyance load, the conveyance speed is set to be lower than or equal to the set conveyance speed.

[チェーン式コンベア装置10の運転方法]
上記構成による本発明のチェーン式コンベア装置の運転方法について、以下説明する。
本実施形態のコンベア装置10は、図1に示すように発電所等において燃料の石炭やバイオマスを貯蔵する貯蔵サイロに設置して使用される。石炭やバイオマス燃料(例えば木質粉、木質ペレットなど)は、各地から船、車両、貨車などで運ばれてホッパに受け入れている。この搬入は連続ではなく、一旦ヤードや大きな容器に受け入れて、産地毎に物性が異なる石炭やバイオマス燃料の水分調整や熱量調整を目的に混合される。この調整後、コンベア装置10で貯蔵サイロに貯めて、後段の燃料使用設備(発電所、熱利用工場など)に搬送する。このとき燃料使用設備から要求された熱量に見合うように、石炭とバイオマス燃料の貯蔵サイロからそれぞれ計量排出し、ブレンドして燃料として使用される。
従来、一般的なコンベア装置の運転方法は、搬送量を一定にするため、搬送物が少ないときに搬送速度を速く設定している。
貯蔵サイロへの燃料の受入れは、搬送手段の種類、搬入量、搬入時刻が一定ではなく、通常、日中に行われる。貯蔵サイロは、燃料使用先に供給切れがないように一定以上ストックしておかなければならない。本実施形態のコンベア装置は、ヤードから貯蔵サイロへ粉粒体を搬送するコンベアであり、夜間には騒音問題のため停止することもできる。しかし発電所などでは連続して供給しなければならないのでヤードからサイロの間のコンベア装置は連続して運転される。この場合、夜間も想定されるため、騒音が発生しないように運転制御が求められる。
[How to operate chain conveyor device 10]
A method of operating the chain conveyor device of the present invention having the above configuration will be described below.
As shown in FIG. 1, the conveyor device 10 of this embodiment is used by being installed in a storage silo that stores fuel coal or biomass in a power plant or the like. Coal and biomass fuels (e.g., wood flour, wood pellets, etc.) are transported by ships, vehicles, and freight cars from all over the country and are received in hoppers. This delivery is not continuous, but is once received in a yard or large container, where it is mixed for the purpose of adjusting the moisture content and calorific value of coal and biomass fuel, which have different physical properties depending on the production area. After this adjustment, the fuel is stored in a storage silo by the conveyor device 10 and transported to subsequent fuel-using equipment (power plant, heat utilization factory, etc.). At this time, the coal and biomass fuel are discharged from the storage silos in a metered amount to match the amount of heat required by the fuel-using equipment, and are blended and used as fuel.
Conventionally, in a common method of operating a conveyor device, in order to keep the amount of conveyance constant, the conveyance speed is set to be high when there are few objects to be conveyed.
Fuel is received into the storage silo depending on the type of transportation means, the amount of fuel delivered, and the time of delivery, and is usually carried out during the day. Storage silos must be stocked with a certain amount of fuel so that the fuel will not run out of supply. The conveyor device of this embodiment is a conveyor that transports powder and granular materials from a yard to a storage silo, and can be stopped at night due to noise problems. However, in power plants and the like, where continuous supply is required, the conveyor equipment between the yard and the silo is operated continuously. In this case, since nighttime is also assumed, operation control is required to prevent noise generation.

ヤードから供給される粉粒体の搬送量を計量部50で計量する。測定値が制御部60に送られる。制御部60では搬送負荷に応じた以下のような搬送制御が行われる。
あらかじめ設定搬送負荷Aと、このときの設定搬送速度Bを定めておく。このとき、粉粒体の有無に関わらず、擦れ音などの騒音は発生しない。
搬送量の測定値が設定搬送負荷Aよりも大きいときは、設定搬送速度Bよりも速く搬送する。例えば、搬送負荷の増加に比例して搬送速度を増加させる設定を行っている。この他、設定速度よりも速い任意の定速で搬送しても良い。
そして粉粒体が少なくなって設定搬送負荷A以下の小さいとき、設定搬送速度以下の低速にする制御を行う。
これによりコンベアチェーン2の搬送負荷の変化によって発生するコンベア運転の騒音を低減できる。例えば、搬送量が少なくなると、搬送プレート3の左右の負荷が不均一となって蛇行しやすくなってダクト1の側壁と金属が接触して金属擦れ音が発生するが、この騒音を回避できる。
また搬送量が少なくなると、搬送プレート3が傾く反力が作用して搬送プレート3を固定しているリンクプレートが持ち上がる。そしてリンクプレートや搬送プレート3が底面に局部的に金属接触して金属擦れ音が発生するが、搬送量が少なくなっても搬送プレート3が傾かず、リンクプレートが持ち上がることがない。
従って、各パーツの摺動摩耗量を減らすことができてメンテナンス頻度及び経年劣化を低減できる。また騒音発生を低減できる。さらに、駆動モータの消費電力を低減できて装置全体の省エネ化が図れる。
また、設定搬送負荷以下時の搬送速度の低速制御によってコンベアチェーン駆動のトルクが増加して張力も増加するので、蛇行を回避でき擦れ音などの騒音も発生することがない。
A measuring section 50 measures the conveyed amount of powder and granular material supplied from the yard. The measured value is sent to the control section 60. The control unit 60 performs the following transport control according to the transport load.
The set transport load A and the set transport speed B at this time are determined in advance. At this time, noise such as rubbing noise is not generated regardless of the presence or absence of powder or granules.
When the measured value of the conveyance amount is larger than the set conveyance load A, the conveyance is carried out faster than the set conveyance speed B. For example, the conveyance speed is set to increase in proportion to the increase in conveyance load. In addition, it may be conveyed at any constant speed faster than the set speed.
Then, when the amount of powder and granular material decreases and the conveyance load is less than the set conveyance load A, control is performed to reduce the conveyance speed to a lower value than the set conveyance speed.
This makes it possible to reduce the noise caused by conveyor operation caused by changes in the conveyance load of the conveyor chain 2. For example, when the amount of conveyance decreases, the load on the left and right sides of the conveyance plate 3 becomes uneven and it tends to meander, causing metal to come into contact with the side wall of the duct 1 and causing metal scraping noise, but this noise can be avoided.
Furthermore, when the conveyance amount decreases, a reaction force that causes the conveyance plate 3 to tilt acts, and the link plate fixing the conveyance plate 3 is lifted up. Although the link plate and the conveying plate 3 locally come into metal contact with the bottom surface and a metal scraping sound is generated, the conveying plate 3 does not tilt even if the amount of conveyance decreases, and the link plate does not lift up.
Therefore, the amount of sliding wear of each part can be reduced, and maintenance frequency and aging deterioration can be reduced. Also, noise generation can be reduced. Furthermore, the power consumption of the drive motor can be reduced, resulting in energy savings for the entire device.
In addition, by controlling the conveyance speed at a low speed when the conveyance load is below the set conveyance load, the torque of the conveyor chain drive increases and the tension increases, so meandering can be avoided and noise such as scraping noise will not be generated.

以上、本発明の好ましい実施形態について説明した。しかしながら、本発明は、上記実施形態に何ら制限されることなく、本発明の主旨を逸脱しない範囲において、種々の変更が可能である。
また、本発明は、実施形態において示された組み合わせに限定されることなく、種々の組み合わせによって実施可能である。
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
Further, the present invention is not limited to the combinations shown in the embodiments, but can be implemented by various combinations.

本発明のチェーン式コンベア装置及びその運転方法は、特に石炭、石膏、木粉、穀類などの粉粒体の貯蔵、搬送設備において産業上の利用可能性を有する。 The chain-type conveyor device and its operating method of the present invention have industrial applicability, particularly in storage and transportation facilities for granular materials such as coal, gypsum, wood flour, and grains.

1 ダクト
2 コンベアチェーン
3 搬送プレート
10 チェーン式コンベア装置
22 供給口
24 排出口
30 駆動スプロケット
31 駆動モータ
32 従動スプロケット
50 計量部
60 制御部
1 Duct 2 Conveyor chain 3 Conveying plate 10 Chain conveyor device 22 Supply port 24 Discharge port 30 Drive sprocket 31 Drive motor 32 Followed sprocket 50 Measuring section 60 Control section

Claims (2)

一端に粉粒体の供給口と他端に排出口を有するダクトと、前記ダクト内に配置する駆動スプロケット及び従動スプロケットと、前記駆動スプロケット及び従動スプロケットにかけ渡して循環移動するコンベアチェーンと、前記コンベアチェーンのリンクプレートの両側面に固定して搬送方向と交差する方向に延出して前記コンベアチェーンの循環移動に伴って前記ダクト内の前記粉粒体を搬送方向に押し出す搬送プレートと、を有するチェーン式コンベア装置において、
前記供給口に接続する供給手段から供給される前記粉粒体の搬送量を計測する計量部と、
前記計量部と、前記駆動スプロケットに接続する駆動モータと電気的に接続して、前記計量部の測定値が、設定搬送負荷よりも大きいとき前記駆動モータの設定速度よりも速くし、前記設定搬送負荷以下のとき前記設定速度以下の低速にする制御を行う制御部と、
を備えたことを特徴とするチェーン式コンベア装置。
a duct having a supply port for powder and granular material at one end and a discharge port at the other end; a driving sprocket and a driven sprocket arranged in the duct; a conveyor chain that circulates across the driving sprocket and the driven sprocket; and the conveyor chain. a conveyance plate fixed to both sides of a link plate of the chain and extending in a direction intersecting the conveyance direction to push out the powder and granular material in the duct in the conveyance direction as the conveyor chain circulates; In type conveyor equipment,
a measuring unit that measures the conveyance amount of the powder and granular material supplied from the supply means connected to the supply port;
The measuring unit is electrically connected to a drive motor connected to the driving sprocket, and when the measured value of the measuring unit is larger than a set conveyance load, the speed is set higher than the set speed of the drive motor, and the set conveyance is increased. a control unit that controls the speed to be lower than the set speed when the load is lower than the set speed;
A chain conveyor device characterized by being equipped with.
一端に粉粒体の供給口と他端に排出口を有するダクトと、前記ダクト内に配置する駆動スプロケット及び従動スプロケットと、前記駆動スプロケット及び従動スプロケットにかけ渡して循環移動するコンベアチェーンと、前記コンベアチェーンのリンクプレートの両側面に固定して搬送方向と交差する方向に延出して前記コンベアチェーンの循環移動に伴って前記ダクト内の前記粉粒体を搬送方向に押し出す搬送プレートと、を有するチェーン式コンベア装置の運転方法において、
前記供給口に接続する供給手段から供給される前記粉粒体の搬送量を計測する工程と、
前記粉粒体の計量測定値が設定搬送負荷よりも大きいとき前記駆動スプロケットに接続する駆動モータの設定速度よりも速くし、前記設定搬送負荷以下のとき前記設定速度以下の低速にする制御を行う工程と、
を有することを特徴とするチェーン式コンベア装置の運転方法。
a duct having a supply port for powder and granular material at one end and a discharge port at the other end; a driving sprocket and a driven sprocket arranged in the duct; a conveyor chain that circulates across the driving sprocket and the driven sprocket; and the conveyor chain. a conveyance plate fixed to both sides of a link plate of the chain and extending in a direction intersecting the conveyance direction to push out the powder and granular material in the duct in the conveyance direction as the conveyor chain circulates; In the method of operating a type conveyor device,
a step of measuring the conveyance amount of the powder and granular material supplied from the supply means connected to the supply port;
When the measured value of the powder or granular material is larger than the set transport load, the speed is set higher than the set speed of the drive motor connected to the drive sprocket , and when it is lower than the set transport load, the speed is controlled to be lower than the set speed. process and
1. A method of operating a chain conveyor device, comprising:
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