JP2019043700A - Solid fuel supplying facility and method for supplying solid fuel - Google Patents

Solid fuel supplying facility and method for supplying solid fuel Download PDF

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JP2019043700A
JP2019043700A JP2017166162A JP2017166162A JP2019043700A JP 2019043700 A JP2019043700 A JP 2019043700A JP 2017166162 A JP2017166162 A JP 2017166162A JP 2017166162 A JP2017166162 A JP 2017166162A JP 2019043700 A JP2019043700 A JP 2019043700A
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solid fuel
transfer belt
coal
fuel supply
deviation
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長谷川　武治
Takeji Hasegawa
武治 長谷川
高橋　毅
Takeshi Takahashi
高橋　　毅
慶人 中島
Yasuto Nakajima
慶人 中島
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Central Research Institute of Electric Power Industry
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Abstract

To provide a solid fuel supplying facility for supplying a solid fuel (coal, biomass and the like) on a transfer belt so that a position and a weight of the solid fuel become equal.SOLUTION: A solid fuel supplying facility includes an equalization means 15 for correcting a deviation (deviation in a position and a weight) of a coal 3 mounted on a transfer belt 11 of a belt conveyer 7 to equalize the coal 3 on the transfer belt 11, and a position and a weight of the coal 3 are equalized on the transfer belt 11 to supply the coal mounted on the transfer belt so that the position and the weight of the coal 3 are equalized on the transfer belt 11 when the coal 3 sent to a coal feeder 5 (a receiving chamber 6 in a power generation facility 1) is supplied to a crushing device 8.SELECTED DRAWING: Figure 2

Description

本発明は、固体燃料が置かれた場所から固体燃料を燃焼させるための燃焼設備（発電設備）の固体燃料の受け入れ部に送られた固体燃料を、燃焼用に加工する部位に供給する固体燃料供給設備、及び、固体燃料の供給方法に関する。   The present invention provides a solid fuel which is supplied from a place where the solid fuel is placed to a solid fuel receiving part of a combustion facility (power generation facility) for burning the solid fuel to a site to be processed for combustion. The present invention relates to a supply facility and a method for supplying solid fuel.

固体燃料として、例えば、微粉炭を燃料とする火力発電設備には貯炭場（固体燃料が置かれた場所）から石炭が供給される。即ち、生産現場から運ばれて貯炭場に保管された石炭は、貯炭場からバケットコンベア等の搬送装置により火力発電設備の石炭受入れ槽（固体燃料の受け入れ部）まで搬送される。搬送された石炭は、石炭供給設備（給炭機）の移送ベルトの駆動により粉砕機（燃焼用に加工する部位）に送られ、粉砕機で石炭が粉砕されて微粉炭が製造される（特許文献１）。   As a solid fuel, for example, coal is supplied to a thermal power plant using pulverized coal as a fuel from a coal storage station (a place where the solid fuel is placed). That is, the coal transported from the production site and stored in the coal storage facility is transported from the coal storage facility to a coal receiving tank (solid fuel receiving portion) of the thermal power generation facility by a transfer device such as a bucket conveyor. The transported coal is sent to a crusher (site to be processed for combustion) by the drive of a transfer belt of a coal supply facility (a coal feeding machine), and the coal is crushed by the crusher to produce pulverized coal (patented) Literature 1).

石炭供給設備で供給される石炭は、粉砕機の粉砕手段に対して石炭の供給が偏らないように、均等な状態で粉砕機に送られる必要がある。このため、石炭供給設備（給炭機）の移送ベルトは、石炭が載せられる部位が平坦になるように設計されることが好ましい。   The coal supplied by the coal supply facility needs to be sent to the crusher in an even state so that the coal supply is not biased to the crushing means of the crusher. For this reason, it is preferable that the transfer belt of the coal supply facility (feeder) is designed so that the portion on which the coal is loaded is flat.

一般に、石炭は、水分の含有量が炭種により異なっている。また、貯炭場に保管された石炭は、発火の抑制を目的として水が散布されたり、自然環境により吸湿状態が異なったりしている。   In general, the content of water in coal differs depending on the type of coal. In addition, coal stored in a coal storage facility is sprayed with water for the purpose of suppressing ignition, and the moisture absorption state differs depending on the natural environment.

このような状況から、石炭受入れ槽から移送ベルトの上に石炭を落下させた際に、石炭同士が付着する等して、石炭が載せられる部位が平坦で均等に石炭が載せられる状態の移送ベルトであっても、石炭が移送ベルトの偏った位置に載せられて、重量に偏りが生じる虞があるのが現状であった。また、吸湿状態の違いにより、移送ベルトに均等に石炭が載せられても、重量に偏りが生じている虞があるのが現状であった。   Under such circumstances, when coal is dropped from the coal receiving tank onto the transfer belt, the coal adheres to each other, and the transfer belt is in a state where the portion on which the coal is loaded is flat and the coal can be loaded evenly. Even so, the present situation is that there is a possibility that the coal may be put on a biased position of the transfer belt and the weight may be biased. Further, due to the difference in the moisture absorption state, even if coal is loaded evenly on the transfer belt, there is a possibility that the weight may be uneven.

移送ベルトに載せられた石炭の位置や重量が偏ると、搬送中の移送ベルトや駆動部に無理な力が加わり、移送ベルトや駆動部材に悪影響を及ぼす虞があった。尚、このような状況は、石炭に限らず、バイオマス等の固体燃料の全般に対して生じる虞がある。   If the position and weight of the coal placed on the transfer belt are unbalanced, an excessive force may be applied to the transfer belt and the driving unit being conveyed, which may adversely affect the transfer belt and the driving member. Such a situation may occur not only to coal but also to all solid fuels such as biomass.

特開２０１３−１９３８７６号公報JP, 2013-193876, A

本発明は上記状況に鑑みてなされたもので、燃焼設備（発電設備）の固体燃料（例えば、石炭）の受け入れ部に送られた固体燃料を、燃焼用に加工する部位（例えば、粉砕機）に供給する際に、移送ベルトに対して固体燃料の位置や重量が均等になるように固体燃料を載せて供給することができる固体燃料供給設備、及び、固体燃料の供給方法を提供することを目的とする。   The present invention has been made in view of the above situation, and a portion (for example, a crusher) for processing the solid fuel sent to a receiving portion of solid fuel (for example, coal) of a combustion facility (power generation facility) It is intended to provide a solid fuel supply facility and a solid fuel supply method capable of loading and supplying solid fuel so that the position and weight of solid fuel can be equalized to the transfer belt when supplying To aim.

上記目的を達成するための請求項１に係る本発明の固体燃料供給設備は、燃焼設備の受け入れ部に受け入れられた固体燃料を前記燃焼設備の粉砕機に移送する移送ベルトを有するベルトコンベアと、前記ベルトコンベアの前記移送ベルトの上面に載せられた前記固体燃料の偏りを修正し、前記移送ベルトの上の前記固体燃料を均等にする均等化手段とを備えたことを特徴とする。   According to a first aspect of the present invention, there is provided a solid fuel supply system according to the first aspect of the present invention, comprising: a belt conveyor having a transfer belt for transferring solid fuel received in a receiving portion of a combustion facility to a grinder of the combustion facility; And an equalization means for correcting the deviation of the solid fuel placed on the upper surface of the transfer belt of the belt conveyor and equalizing the solid fuel on the transfer belt.

請求項１に係る本発明では、均等化手段により移送ベルトの上面に載せられた固体燃料（石炭）の偏りを修正し、移送ベルトに対して固体燃料（石炭）の位置や重量を均等にする。これにより、燃焼設備（発電設備）の固体燃料受入れ部（石炭受け入れ部）に送られた固体燃料（石炭）を、燃焼用に加工する部位（微粉炭にする粉砕機）に供給する際に、移送ベルトに対して固体燃料（石炭）の位置や重量が均等になるように固体燃料（石炭）を載せて供給することが可能になる。   In the present invention according to claim 1, the deviation of the solid fuel (coal) placed on the upper surface of the transfer belt is corrected by the equalizing means, and the position and the weight of the solid fuel (coal) are made even with respect to the transfer belt. . Thereby, when the solid fuel (coal) sent to the solid fuel receiving part (coal receiving part) of the combustion equipment (power generation equipment) is supplied to a portion to be processed for combustion (crusher to be pulverized coal), It becomes possible to load and supply solid fuel (coal) so that the position and weight of solid fuel (coal) may be equalized with respect to a transfer belt.

尚、固体燃料としては、粉砕機により粉砕されて燃焼設備（発電設備）で燃焼される燃料であれば、石炭、バイオマス等の固体の燃料（炭素燃料）を適用することができる。   In addition, as a solid fuel, solid fuel (carbon fuel), such as coal and biomass, can be applied as long as it is a fuel that is pulverized by a pulverizer and burned by a combustion facility (power generation facility).

そして、請求項２に係る本発明の固体燃料供給設備は、請求項１に記載の固体燃料供給設備において、前記ベルトコンベアの前記移送ベルトの上の前記固体燃料の偏りを導出する偏り導出手段と、前記偏り導出手段で導出された前記固体燃料の偏りの情報に基づいて前記均等化手段を動作させる制御手段とを備えたことを特徴とする。   The solid fuel supply facility according to the second aspect of the present invention is the solid fuel supply facility according to the first aspect, further comprising: bias derivation means for deriving the bias of the solid fuel on the transfer belt of the belt conveyor And control means for operating the equalizing means on the basis of the information on the deviation of the solid fuel derived by the deviation deriving means.

請求項２に係る本発明では、偏り導出手段で導出された固体燃料（石炭）の偏りの情報が制御手段に入力され、現時点での固体燃料（石炭）の偏りの情報に基づいて均等化手段を動作させ、ベルトコンベアを停止させずに固体燃料（石炭）の偏りを修正する。   In the present invention according to claim 2, the information on the bias of the solid fuel (coal) derived by the bias deriving means is inputted to the control means, and the equalization means is based on the information on the bias of the solid fuel (coal) at the present time Operate and correct the bias of solid fuel (coal) without stopping the belt conveyor.

また、請求項３に係る本発明の固体燃料供給設備は、請求項２に記載の固体燃料供給設備において、前記偏り導出手段は、前記移送ベルトに加わる重量分布を検出する手段であることを特徴とする。   A solid fuel supply facility according to a third aspect of the present invention is the solid fuel supply facility according to the second aspect, wherein the bias deriving means is a means for detecting a weight distribution applied to the transfer belt. I assume.

請求項３に係る本発明では、移送ベルトに加わる重量分布に応じて重量分布を抑制する状態に固体燃料（石炭）の偏りを修正することができる。   In the third aspect of the present invention, it is possible to correct the bias of the solid fuel (coal) to a state in which the weight distribution is suppressed according to the weight distribution applied to the transfer belt.

また、請求項４に係る本発明の固体燃料供給設備は、請求項２に記載の固体燃料供給設備において、前記偏り導出手段は、前記移送ベルトに載せられる前記固体燃料の水分量の分布を検出する手段であることを特徴とする。   In the solid fuel supply facility according to the fourth aspect of the present invention, in the solid fuel supply facility according to the second aspect, the bias deriving means detects the distribution of the water content of the solid fuel loaded on the transfer belt. And means for

請求項４に係る本発明では、移送ベルトに載せられる固体燃料（石炭）の水分量の分布に応じて水分量の分布を抑制する状態に固体燃料（石炭）の偏りを修正することができる。   According to the fourth aspect of the present invention, the bias of the solid fuel (coal) can be corrected to a state in which the distribution of the water content is suppressed according to the distribution of the water content of the solid fuel (coal) loaded on the transfer belt.

また、請求項５に係る本発明の固体燃料供給設備は、請求項１から請求項４のいずれか一項に記載の固体燃料供給設備において、前記均等化手段は、前記移送ベルトの側部に回動自在に設けられ、前記移送ベルトの側部寄りに載せられた前記固体燃料を前記移送ベルトの駆動に伴い中央部側に移動させるアーム部材であることを特徴とする。   The solid fuel supply facility of the present invention according to claim 5 is the solid fuel supply facility according to any one of claims 1 to 4, wherein the equalizing means is provided on the side of the transfer belt. The arm member is rotatably provided and moves the solid fuel placed near the side portion of the transfer belt toward the central portion as the transfer belt is driven.

請求項５に係る本発明では、移送ベルトの上で固体燃料（石炭）の偏りが生じた場合、アーム部材を回動させて移送ベルトの駆動に伴い中央部側に固体燃料（石炭）を移動させ、固体燃料（石炭）の偏りを修正する。このため、移送ベルトの幅方向に偏りが生じた場合に、固体燃料（石炭）を中央側に寄せて偏りを修正することができる。   In the present invention according to the fifth aspect, when deviation of solid fuel (coal) occurs on the transfer belt, the arm member is rotated to move the solid fuel (coal) to the central portion side as the transfer belt is driven. To correct the bias of solid fuel (coal). For this reason, when bias occurs in the width direction of the transfer belt, the solid fuel (coal) can be brought closer to the center side to correct the bias.

また、請求項６に係る本発明の請求項１から請求項４のいずれか一項に記載の固体燃料供給設備において、前記均等化手段は、前記移送ベルトの上部に設けられ、前記移送ベルトの高さ方向に偏った前記固体燃料を前記移送ベルトの駆動に伴い前記移送ベルトの上面側に移動させる上部調整部材であることを特徴とする。   In the solid fuel supply facility according to any one of claims 1 to 4 of the present invention according to claim 6, the equalizing means is provided on an upper portion of the transfer belt, and The upper adjustment member may move the solid fuel biased in the height direction to the upper surface side of the transfer belt as the transfer belt is driven.

請求項６に係る本発明では、移送ベルトの上で固体燃料（石炭）の偏りが生じた場合、上部調整部材により、移送ベルトの駆動に伴い移送ベルトの上面側（表面側）に固体燃料（石炭）を移動させ（固体燃料を移送ベルトの表面に落下させ）、固体燃料（石炭）の偏りを修正する。このため、移送ベルトの高さ方向に偏りが生じた場合に、固体燃料（石炭）を移送ベルトの上面側に落下させて偏りを修正することができる。   In the present invention according to claim 6, when the deviation of the solid fuel (coal) occurs on the transfer belt, the upper adjustment member causes the solid fuel on the upper surface side (surface side) of the transfer belt as the transfer belt is driven. Move the coal) (drop the solid fuel on the surface of the transfer belt) and correct the bias of the solid fuel (coal). For this reason, when deviation occurs in the height direction of the transfer belt, the solid fuel (coal) can be dropped to the upper surface side of the transfer belt to correct the deviation.

上記目的を達成するための請求項７に係る本発明の固体燃料の供給方法は、燃焼設備の受け入れ部に受け入れられた固体燃料を移送ベルトにより前記燃焼設備の粉砕機に移送する際に、前記移送ベルトの上面に載せられた固体燃料の偏りを修正することを特徴とする。   In order to achieve the above object, the solid fuel supply method of the present invention according to claim 7 is characterized in that the solid fuel received by the receiving part of the combustion equipment is transferred by the transfer belt to the crusher of the combustion equipment. It is characterized by correcting the bias of the solid fuel placed on the upper surface of the transfer belt.

請求項７に係る本発明では、移送ベルトの上面に載せられた固体燃料（石炭）の偏りを修正し、移送ベルトに対して固体燃料（石炭）の位置や重量を均等にして固体燃料（石炭）を受け入れ部から粉砕機に移送する。これにより、燃焼設備（発電設備）の固体燃受入れ部（石炭受け入れ部）に送られた固体燃料（石炭）を、燃焼用に加工する粉砕機に供給する際に、移送ベルトに対して固体燃料（石炭）の位置や重量が均等になるように固体燃料（石炭）を載せて供給することが可能になる。   In the present invention according to claim 7, the solid fuel (coal) is corrected by correcting the bias of the solid fuel (coal) placed on the upper surface of the transfer belt and equalizing the position and weight of the solid fuel (coal) with respect to the transfer belt. ) From the receiving part to the crusher. Thereby, when the solid fuel (coal) sent to the solid fuel receiving part (coal receiving part) of the combustion equipment (power generation equipment) is supplied to the crusher which is processed for combustion, the solid fuel relative to the transfer belt Solid fuel (coal) can be loaded and supplied so that the position and weight of (coal) become even.

本発明の固体燃料供給設備、及び、固体燃料の供給方法は、燃焼設備（発電設備）の固体燃料受入れ部に送られた固体燃料を、燃焼用に加工する部位（粉砕機）に供給する際に、移送ベルトに対して固体燃料の位置や重量が均等になるように固体燃料を載せて供給することが可能になる。   The solid fuel supply facility of the present invention and the method for supplying solid fuel according to the present invention, when supplying the solid fuel sent to the solid fuel receiving portion of the combustion facility (power generation facility) to a portion (crusher) to be processed for combustion In addition, it is possible to load and supply the solid fuel so as to equalize the position and weight of the solid fuel with respect to the transfer belt.

この結果、燃焼設備（発電設備）の固体燃料受入れ部に送られた固体燃料を、燃焼用に加工する部位（粉砕機）に供給する際に、搬送中の移送ベルトや駆動部に無理な力が加わることがなくなり、移送ベルトや駆動部材に悪影響を及ぼす虞がない固体燃料供給設備、及び、固体燃料の供給方法を提供することができる。   As a result, when the solid fuel sent to the solid fuel receiving portion of the combustion facility (power generation facility) is supplied to the portion (crusher) to be processed for combustion, an excessive force is exerted on the transfer belt or drive unit being transported. It is possible to provide a solid fuel supply facility and a method for supplying solid fuel without the possibility of adversely affecting the transfer belt or the drive member.

本発明の一実施例に係る固体燃料供給設備（石炭供給設備）を備えた石炭の搬送経路を説明する概略図である。It is the schematic explaining the conveyance path of coal provided with the solid fuel supply installation (coal supply installation) which concerns on one Example of this invention. 本発明の一実施例に係る固体燃料供給設備（石炭供給設備）の側面図である。It is a side view of solid fuel supply equipment (coal supply equipment) concerning one example of the present invention. 図２中の平面図である。It is a top view in FIG. 本発明の第２実施例に係る固体燃料供給設備（石炭供給設備）の要部の正面図である。It is a front view of the principal part of solid fuel supply equipment (coal supply equipment) concerning a 2nd example of the present invention. 図４中の平面図である。It is a top view in FIG. 本発明の第３実施例に係る固体燃料供給設備（石炭供給設備）の要部の正面図である。It is a front view of the principal part of solid fuel supply equipment (coal supply equipment) concerning a 3rd example of the present invention.

図１に基づいて固体燃料としての石炭の搬送経路を説明する。
図１には本発明の一実施例に係る固体燃料供給設備（石炭供給設備）を備えた発電設備における固体燃料としての石炭の搬送経路の全体を説明する概略を示してある。 The transportation route of coal as a solid fuel will be described based on FIG.
FIG. 1 is a schematic view for explaining the entire transport path of coal as solid fuel in a power generation facility provided with a solid fuel supply facility (coal supply facility) according to an embodiment of the present invention.

固体燃料として、例えば、石炭を粉砕した微粉炭を燃料とする火力発電設備（発電設備）１には貯炭場２から石炭３が供給される。即ち、生産現場から運ばれて貯炭場２に保管された石炭３は、貯炭場２からバケットコンベア等の搬送装置４により発電設備１の石炭供給設備（給炭機）５の受入れ槽（固体燃料受入れ部）６まで搬送される。   As a solid fuel, for example, coal 3 is supplied from a coal storage station 2 to a thermal power generation facility (power generation facility) 1 using as a fuel pulverized coal obtained by crushing coal. That is, the coal 3 carried from the production site and stored in the coal storage station 2 is a receiving tank (solid fuel) 5 of the coal supply facility (coal feeding machine) 5 of the power generation facility 1 by the conveying device 4 such as a bucket conveyor from the coal storage station 2 Receiving section 6).

尚、固体燃料としては、粉砕機により粉砕されて燃焼設備（発電設備）で燃焼される燃料であれば、石炭３に限らず、バイオマス等の固体の燃料（炭素燃料）を適用することができる。   In addition, as a solid fuel, if it is a fuel pulverized by a pulverizer and burned by a combustion facility (power generation facility), not only coal 3 but a solid fuel such as biomass (carbon fuel) can be applied. .

受入れ槽６に受け入れられた石炭３は、給炭機５のベルトコンベア７の駆動により粉砕機（ミルや石炭クラッシャー等）８（燃焼用に加工する部位）に送られ、粉砕機８で石炭が粉砕されて微粉炭９が製造される。粉砕機８で製造された微粉炭９は、図示しないボイラ（燃焼設備）に送られて燃焼用の燃料とされる。   The coal 3 received in the receiving tank 6 is sent to a crusher (a mill, a coal crusher etc.) 8 (a part to be processed for combustion) by the drive of a belt conveyor 7 of a coal feeder 5. Pulverized coal 9 is produced by grinding. The pulverized coal 9 produced by the crusher 8 is sent to a boiler (combustion facility) (not shown) and used as a fuel for combustion.

図２、図３に基づいて給炭機５を説明する。
図２には本発明の一実施例に係る石炭供給設備の全体を現す側面視の状況、図３には図２中のベルトコンベアの部位の平面視の状況を示してある。 The coal feeder 5 is demonstrated based on FIG. 2, FIG.
FIG. 2 shows a state of a side view showing the whole of the coal supply facility according to an embodiment of the present invention, and FIG. 3 shows a state of a plan view of a portion of the belt conveyor in FIG.

給炭機５で供給される石炭３は、粉砕機８の粉砕手段に対して石炭３の供給が偏らないように、均等な状態で粉砕機８に送られる必要がある。このため、給炭機５のベルトコンベア７の移送ベルト１１は、石炭３が載せられる部位（上面）が平坦になるように設計されている。   The coal 3 supplied by the coal feeder 5 needs to be sent to the crusher 8 in a uniform state so that the supply of the coal 3 is not biased to the crushing means of the crusher 8. For this reason, the transfer belt 11 of the belt conveyor 7 of the coal feeder 5 is designed so that the portion (upper surface) on which the coal 3 can be placed is flat.

そして、受入れ槽６から移送ベルト１１の上に石炭３を落下させた際に、石炭３同士が付着する等して、石炭３が移送ベルト１１の幅方向の偏った位置に載せられて、重量に偏りが生じる虞がある。また、吸湿状態の違いにより、移送ベルト１１に均等に石炭３が載せられても、重量に偏りが生じている虞がある。   Then, when the coal 3 is dropped from the receiving tank 6 onto the transfer belt 11, the coal 3 adheres to each other, etc., and the coal 3 is placed on the biased position in the width direction of the transfer belt 11, May be biased. Further, even if the coal 3 is evenly loaded on the transfer belt 11 due to the difference in the moisture absorption state, there is a possibility that the weight is uneven.

このため、本実施例の給炭機５には、ベルトコンベア７の移送ベルト１１の上面に載せられた石炭３の偏り（位置の偏り、重さの偏り）を修正し、移送ベルト１１の上の石炭３を均等にする均等化手段１５を備えている。   For this reason, in the coal feeder 5 of the present embodiment, the deviation (the deviation of the position and the deviation of the weight) of the coal 3 placed on the upper surface of the transfer belt 11 of the belt conveyor 7 is corrected. The equalizing means 15 which equalizes the coal 3 of this.

均等化手段１５により、移送ベルト１１の上面に載せられた石炭３の偏りを修正し（幅方向に均等にし）、移送ベルト１１に対して石炭３の位置や重量を均等にする。これにより、給炭機５（発電設備１の受入れ槽６）に送られた石炭３を、粉砕機８に供給する際に、移送ベルト１１に対して石炭３の位置や重量が均等になるように石炭３を載せて供給することが可能になる。   The equalization means 15 corrects the deviation of the coal 3 placed on the upper surface of the transfer belt 11 (equally in the width direction), and makes the position and weight of the coal 3 uniform with respect to the transfer belt 11. As a result, when the coal 3 sent to the coal feeder 5 (the receiving tank 6 of the power generation facility 1) is supplied to the crusher 8, the position and weight of the coal 3 with respect to the transfer belt 11 are equalized. The coal 3 can be loaded and supplied.

均等化手段１５を説明する。均等化手段１５は、移送ベルト１１の両側部にアーム部材１６が備えられている。アーム部材１６は、鉛直軸周りで回動自在に支持され、回動手段１７によって個別に回動される。アーム部材１６は、棒状の部材、板状の部材等、アーム状（長尺状）の部材であれば、形状は限定されない。   The equalizing means 15 will be described. The equalizing means 15 is provided with arm members 16 on both sides of the transfer belt 11. The arm member 16 is rotatably supported around the vertical axis and is individually rotated by the rotation means 17. The shape of the arm member 16 is not limited as long as it is an arm-like (long) member such as a rod-like member or a plate-like member.

アーム部材１６の回動により、移送ベルト１１の側部寄りに載せられた石炭３を、移送ベルト１１の駆動に伴いアーム部材１６に沿って中央部側に移動させることができる。このため、移送ベルト１１の幅方向に石炭３の偏りが生じた場合に、石炭３を中央側に寄せて偏りを修正することができる。   By rotation of the arm member 16, the coal 3 placed on the side of the transfer belt 11 can be moved along the arm member 16 toward the central portion with the drive of the transfer belt 11. For this reason, when the deviation of coal 3 arises in the width direction of transfer belt 11, coal 3 can be brought close to the center side to correct the deviation.

ベルトコンベア７の下部には、移送ベルト１１の上の石炭３の偏りを導出する偏り導出手段２１が備えられている。偏り導出手段２１は、移送ベルト１１に加わる重量分布を検出する手段となっている。偏り導出手段２１で検出された重量分布の情報は制御手段２２に入力される。制御手段２２には、石炭の種類の情報（炭種の情報）や移送ベルト１１の駆動情報が入力される。   At the lower part of the belt conveyor 7, a bias deriving means 21 for deriving the bias of the coal 3 on the transfer belt 11 is provided. The bias deriving means 21 is a means for detecting the weight distribution applied to the transfer belt 11. Information on the weight distribution detected by the bias deriving unit 21 is input to the control unit 22. The control means 22 receives information on the type of coal (information on the type of coal) and drive information on the transfer belt 11.

制御手段２２では、偏り導出手段２１で検出された移送ベルト１１に加わる重量分布の情報、及び、炭種の情報、移送ベルト１１の駆動情報に基づき、現時点での石炭３の偏りの状況を導出し、現時点での石炭３の偏りの情報に基づいて、回動手段１７によりアーム部材１６を個別に回動させる（均等化手段１５を動作させる）。   The control means 22 derives the current status of the deviation of the coal 3 based on the information of the weight distribution added to the transfer belt 11 detected by the deviation deriving means 21, the information of the coal type, and the drive information of the transfer belt 11. Then, the arm member 16 is individually rotated by the rotation means 17 based on the information on the current deviation of the coal 3 (the equalization means 15 is operated).

一般に、石炭は、水分の含有量が炭種により異なっている。また、貯炭場に保管された石炭は、発火の抑制を目的として水が散布されたり、自然環境により吸湿状態が異なったりしている。このため、偏り導出手段として、移送ベルト１１に載せられる石炭３の水分量の分布を検出（推定）する手段を適用することも可能である。また、複数の石炭３が付着して塊を形成し、移送ベルト１１への荷重量に偏りが生じている状態を検出（推定）する手段を適用することが可能である。   In general, the content of water in coal differs depending on the type of coal. In addition, coal stored in a coal storage facility is sprayed with water for the purpose of suppressing ignition, and the moisture absorption state differs depending on the natural environment. For this reason, it is also possible to apply a means for detecting (estimating) the distribution of the water content of the coal 3 loaded on the transfer belt 11 as the bias deriving means. Further, it is possible to apply a means for detecting (estimating) a state in which a plurality of coals 3 adhere to form a lump and a load amount to the transfer belt 11 is biased.

これにより、移送ベルト１１に載せられる石炭３の水分量（石炭３の塊の水分量）の分布に応じて水分量の分布を抑制する状態に石炭３の偏りを修正することができる。   Thereby, the bias of the coal 3 can be corrected to a state in which the distribution of the water content is suppressed according to the distribution of the water content of the coal 3 (water content of the block of the coal 3) loaded on the transfer belt 11.

例えば、図３に示すように、移送ベルト１１の幅方向の一方側（図中下側）に石炭３が偏った領域Ａが生じたことが検出された場合、石炭３の偏りの情報が制御手段２２に入力される。移送ベルト１１の駆動に連動して、図中下側のアーム部材１６が回動され、アーム部材１６の先端側が移送ベルト１１の中央部側に位置する状態にされる。   For example, as shown in FIG. 3, when it is detected that the area A where the coal 3 is biased is detected on one side (lower side in the drawing) of the transfer belt 11 in the width direction, the information of the bias of the coal 3 is controlled The information is input to the means 22. The lower arm member 16 in the figure is rotated in conjunction with the drive of the transfer belt 11, and the tip end side of the arm member 16 is positioned on the central portion side of the transfer belt 11.

移送ベルト１１の駆動に伴いアーム部材１６に沿って石炭３が中央部側に移動し、石炭３の領域Ａが移送ベルト１１の中央部側に移動する。このため、移送ベルト１１の幅方向に石炭３の偏りが生じた場合に、石炭３の移動の軌跡（重心の軌跡）が中央側に寄せられて偏りが修正される。   As the transfer belt 11 is driven, the coal 3 moves to the central portion side along the arm member 16, and the area A of the coal 3 moves to the central portion side of the transfer belt 11. For this reason, when the deviation of coal 3 arises in the width direction of transfer belt 11, the locus of movement of coal 3 (the locus of the center of gravity) is shifted to the center side, and the deviation is corrected.

この結果、発電設備１の受入れ槽６に送られた石炭３を、微粉炭にする粉砕機８に供給する際に、搬送中の移送ベルト１１や駆動部に無理な力が加わることがなくなり、移送ベルト１１や駆動部材に悪影響を及ぼす虞がなくなる。   As a result, when the coal 3 sent to the receiving tank 6 of the power generation facility 1 is supplied to the pulverizer 8 for pulverizing coal, no excessive force is applied to the transfer belt 11 or the driving unit being conveyed. There is no risk of adversely affecting the transfer belt 11 and the drive member.

図４、図５に基づいて本発明の第２実施例（均等化手段の第２実施例）を説明する。
図４は本発明の第２実施例に係る石炭供給設備の要部の正面視の状態、図５には図４中の平面視の状態であり、均等化手段の第２実施例の構成を示してある。 A second embodiment (a second embodiment of the equalizing means) of the present invention will be described based on FIG. 4 and FIG.
FIG. 4 is a front view of an essential part of a coal supply facility according to a second embodiment of the present invention, and FIG. 5 is a plan view of FIG. 4 and shows the construction of the second embodiment of the equalizing means. It is shown.

図に示すように、均等化手段２４は、移送ベルト１１の両側の上部に上部調整部材としての回動板２５が備えられている。回動板２５は、鉛直軸周りで回動自在に支持され、回動手段２６によって、例えば、９０度の範囲で個別に回動される。回動板２５が回動することで、移送ベルト１１の高さ方向に高く載せられた石炭３を、移送ベルト１１の駆動に伴い移送ベルト１１の上側（表面）に移動（落下）させることができる。このため、移送ベルト１１の高さ方向に偏りが生じた場合に、石炭３を移送ベルト１１の上側に落下させて偏りを修正することができる。   As shown in the figure, the equalizing means 24 is provided with pivoting plates 25 as upper adjustment members at upper portions on both sides of the transfer belt 11. The rotation plate 25 is supported rotatably around the vertical axis, and is individually rotated by the rotation means 26 within a range of, for example, 90 degrees. The rotary plate 25 is rotated to move (fall) the coal 3 placed high in the height direction of the transfer belt 11 to the upper side (surface) of the transfer belt 11 with the drive of the transfer belt 11. it can. For this reason, when bias occurs in the height direction of the transfer belt 11, the coal 3 can be dropped to the upper side of the transfer belt 11 to correct the bias.

回動板２５を備えることで、偏りがない場合に移送ベルト１１の上側のスペースを開けて周囲の設備に対する影響を最小限にすることができる。回動板２５に代えて板材を固定状態に配置することも可能である。   By providing the pivot plate 25, it is possible to open the space above the transfer belt 11 when there is no deviation, and to minimize the influence on surrounding equipment. It is also possible to arrange the plate material in a fixed state instead of the rotating plate 25.

図６に基づいて本発明の第３実施例（均等化手段の第３実施例）を説明する。
図６は本発明の第３実施例に係る石炭供給設備の要部の正面視の状態であり、均等化手段の第３実施例の構成を示してある。 A third embodiment (third embodiment of the equalizing means) of the present invention will be described based on FIG.
FIG. 6 is a front view of the main part of the coal supply facility according to the third embodiment of the present invention, and shows the configuration of the third embodiment of the equalizing means.

図に示すように、均等化手段は、移送ベルト１１の両側部の下部に突上げシリンダー３１が備えられている。突上げシリンダー３１の駆動により、移送ベルト１１の側部の部位を上側に突き上げ動作させる。石炭３が移送ベルト１１の高さ方向に高く載せられた場合、高くなった側の突上げシリンダー３１を駆動させる。これにより、移送ベルト１１の側部の部位が上側に突き上げられ、側部の部位で高くなった石炭３が移送ベルト１１の中央部側に落下して移動する。このため、移送ベルト１１の側部の部位に高さ方向に偏りが生じた場合に、石炭３を中央部側に落下させて偏りを修正することができる。   As shown in the figure, the equalizing means is provided with a push-up cylinder 31 at the lower part of each side of the transfer belt 11. The drive of the push-up cylinder 31 causes the side portion of the transfer belt 11 to be pushed upward. When the coal 3 is loaded high in the height direction of the transfer belt 11, the raised cylinder 31 is driven. As a result, the side portion of the transfer belt 11 is pushed upward, and the raised coal 3 at the side portion drops and moves to the central portion side of the transfer belt 11. For this reason, when bias occurs in the height direction at the side portion of the transfer belt 11, the coal 3 can be dropped to the central portion side to correct the bias.

上述した石炭供給設備（給炭機）、及び、石炭の供給方法は、発電設備１の受入れ槽６に送られた石炭３を、微粉炭にする粉砕機８に供給する際に、移送ベルト１１に対して石炭３の位置や重量が均等になるように石炭を載せて供給することが可能になる。このため、搬送中の移送ベルト１１や駆動部に無理な力が加わることがなくなり、移送ベルト１１や駆動部材に悪影響を及ぼす虞がなくなる。   The above-described coal supply facility (a coal feeding machine) and the method of supplying coal use the transfer belt 11 when the coal 3 sent to the receiving tank 6 of the power generation facility 1 is supplied to the pulverizer 8 for making pulverized coal. On the other hand, it is possible to load and supply coal so that the position and weight of coal 3 become equal. For this reason, an excessive force is not applied to the transfer belt 11 and the drive unit being conveyed, and there is no possibility that the transfer belt 11 and the drive member are adversely affected.

本発明は、固体燃料が置かれた場所（貯炭場所）から固体燃料（石炭）を燃焼させるための燃焼設備（発電設備）の固体燃料の受け入れ部（石炭受け入れ部）に送られた固体燃料（石炭）を、燃焼用に加工する部位（粉砕機）に供給する固体燃料供給設備、及び、固体燃燃料の産業分野で利用することができる。   The present invention relates to a solid fuel (solid coal receiving part) sent to a solid fuel receiving part (coal receiving part) of a combustion facility (power generation facility) for burning the solid fuel (coal) from a place where the solid fuel is placed (storage location). Coal) can be used in the solid fuel supply facility for supplying to a portion (crusher) to be processed for combustion, and in the industrial field of solid fuel.

１ 火力発電設備（発電設備）
２ 貯炭場
３ 石炭
４ 搬送装置
５ 石炭供給設備（給炭機）
６ 受入れ槽
７ ベルトコンベア
８ 粉砕機
９ 微粉炭
１１ 移送ベルト
１５、２４ 均等化手段
１６ アーム部材
１７ 回動手段
２１ 偏り導出手段
２２ 制御手段
２５ 回動板
３１ 突上げシリンダー
1 Thermal power generation facility (power generation facility)
2 Coal storage station 3 Coal 4 Transporting equipment 5 Coal supply facility
DESCRIPTION OF SYMBOLS 6 Receiving tank 7 Belt conveyor 8 Crusher 9 Pulverized coal 11 Transfer belt 15, 24 Equalization means 16 Arm member 17 Rotation means 21 Deviation | deviation derivation means 22 Control means 25 Rotation board 31 Push-up cylinder

Claims (7)

燃焼設備の受け入れ部に受け入れられた固体燃料を前記燃焼設備の粉砕機に移送する移送ベルトを有するベルトコンベアと、
前記ベルトコンベアの前記移送ベルトの上面に載せられた前記固体燃料の偏りを修正し、前記移送ベルトの上の前記固体燃料を均等にする均等化手段とを備えた
ことを特徴とする固体燃料供給設備。 A conveyor belt having a transfer belt for transferring solid fuel received in a receiving part of the combustion equipment to a crusher of the combustion equipment;
Solid fuel supply characterized by correcting deviation of the solid fuel placed on the upper surface of the transfer belt of the belt conveyor and equalizing the solid fuel on the transfer belt. Facility. 請求項１に記載の固体燃料供給設備において、
前記ベルトコンベアの前記移送ベルトの上の前記固体燃料の偏りを導出する偏り導出手段と、
前記偏り導出手段で導出された前記固体燃料の偏りの情報に基づいて前記均等化手段を動作させる制御手段とを備えた
ことを特徴とする固体燃料供給設備。 In the solid fuel supply facility according to claim 1,
Bias deriving means for deriving the bias of the solid fuel on the transfer belt of the belt conveyor;
A solid fuel supply facility comprising: control means for operating the equalizing means based on the information on the deviation of the solid fuel derived by the deviation deriving means. 請求項２に記載の固体燃料供給設備において、
前記偏り導出手段は、
前記移送ベルトに加わる重量分布を検出する手段である
ことを特徴とする固体燃料供給設備。 In the solid fuel supply facility according to claim 2,
The bias deriving means is
It is a means to detect the weight distribution added to the said transfer belt. The solid fuel supply installation characterized by the above-mentioned. 請求項２に記載の固体燃料供給設備において、
前記偏り導出手段は、
前記移送ベルトに載せられる前記固体燃料の水分量の分布を検出する手段である
ことを特徴とする固体燃料供給設備。 In the solid fuel supply facility according to claim 2,
The bias deriving means is
It is a means to detect distribution of the moisture content of the said solid fuel loaded on the said transfer belt. The solid fuel supply installation characterized by the above-mentioned. 請求項１から請求項４のいずれか一項に記載の固体燃料供給設備において、
前記均等化手段は、
前記移送ベルトの側部に回動自在に設けられ、前記移送ベルトの側部寄りに載せられた前記固体燃料を前記移送ベルトの駆動に伴い中央部側に移動させるアーム部材である
ことを特徴とする固体燃料供給設備。 In the solid fuel supply facility according to any one of claims 1 to 4,
The equalization means is
It is an arm member which is rotatably provided on the side of the transfer belt and moves the solid fuel placed near the side of the transfer belt toward the center along with the drive of the transfer belt. Solid fuel supply equipment. 請求項１から請求項４のいずれか一項に記載の固体燃料供給設備において、
前記均等化手段は、
前記移送ベルトの上部に設けられ、前記移送ベルトの高さ方向に偏った前記固体燃料を前記移送ベルトの駆動に伴い前記移送ベルトの上面側に移動させる上部調整部材である
ことを特徴とする固体燃料供給設備。 In the solid fuel supply facility according to any one of claims 1 to 4,
The equalization means is
It is an upper adjustment member provided on the upper part of the transfer belt and moving the solid fuel biased in the height direction of the transfer belt to the upper surface side of the transfer belt as the transfer belt is driven. Fuel supply equipment. 燃焼設備の受け入れ部に受け入れられた固体燃料を移送ベルトにより前記燃焼設備の粉砕機に移送する際に、前記移送ベルトの上面に載せられた固体燃料の偏りを修正する
ことを特徴とする固体燃料の供給方法。
A solid fuel characterized in that the solid fuel received on the receiving part of the combustion equipment is transferred by the transfer belt to the crusher of the combustion equipment, and the deviation of the solid fuel placed on the upper surface of the transfer belt is corrected. Supply method.
JP2017166162A 2017-08-30 2017-08-30 Solid fuel supplying facility and method for supplying solid fuel Pending JP2019043700A (en)

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Publication number Priority date Publication date Assignee Title
KR102354488B1 (en) * 2020-07-31 2022-02-07 최성호 pellet charcoal manufacturing system

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JPS622520U (en) * 1985-06-19 1987-01-09
JP2008063057A (en) * 2006-09-06 2008-03-21 Takuma Co Ltd Layer thickness adjust mechanism, conveyor with it and control method of layer thickness adjust mechanism
JP2013256381A (en) * 2012-06-14 2013-12-26 Yokohama Rubber Co Ltd:The Belt conveyor device
US20140110590A1 (en) * 2012-10-22 2014-04-24 Troxler Electronic Laboratories, Inc. Conveyor system and measuring device for determining water content of a construction material
JP2015025582A (en) * 2013-07-24 2015-02-05 バブコック日立株式会社 Solid fuel combustion device

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Publication number Priority date Publication date Assignee Title
JPS622520U (en) * 1985-06-19 1987-01-09
JP2008063057A (en) * 2006-09-06 2008-03-21 Takuma Co Ltd Layer thickness adjust mechanism, conveyor with it and control method of layer thickness adjust mechanism
JP2013256381A (en) * 2012-06-14 2013-12-26 Yokohama Rubber Co Ltd:The Belt conveyor device
US20140110590A1 (en) * 2012-10-22 2014-04-24 Troxler Electronic Laboratories, Inc. Conveyor system and measuring device for determining water content of a construction material
JP2015025582A (en) * 2013-07-24 2015-02-05 バブコック日立株式会社 Solid fuel combustion device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102354488B1 (en) * 2020-07-31 2022-02-07 최성호 pellet charcoal manufacturing system

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