JP2012170941A - Powder and granular material mixing system - Google Patents
Powder and granular material mixing system Download PDFInfo
- Publication number
- JP2012170941A JP2012170941A JP2011038272A JP2011038272A JP2012170941A JP 2012170941 A JP2012170941 A JP 2012170941A JP 2011038272 A JP2011038272 A JP 2011038272A JP 2011038272 A JP2011038272 A JP 2011038272A JP 2012170941 A JP2012170941 A JP 2012170941A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- granular material
- mass
- powder
- mixing
- 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
Links
- 238000002156 mixing Methods 0.000 title claims abstract description 84
- 239000008187 granular material Substances 0.000 title claims abstract description 72
- 239000000843 powder Substances 0.000 title claims abstract description 45
- 239000000203 mixture Substances 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 280
- 238000011144 upstream manufacturing Methods 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 102220014802 rs45527543 Human genes 0.000 description 2
- 102220223878 rs867113214 Human genes 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000010675 chips/crisps Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Accessories For Mixers (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
本発明は、種類の異なる石炭や木材チップ、小麦、米等のいわゆる粉粒体を所定の割合で混合するシステムに関する。 The present invention relates to a system that mixes so-called powder particles of different types of coal, wood chips, wheat, rice and the like at a predetermined ratio.
混合対象の粉粒体の一例として、石炭を挙げることができる。一口に石炭と言っても、採掘地などによって定められた種類によって種々の燃焼特性がある。このため、石炭を製品として安定供給するためには、商品としての石炭の燃焼特性のバラツキを抑える必要がある。 Coal can be mentioned as an example of the granular material to be mixed. Even if it says coal, there are various combustion characteristics depending on the type determined by the mining site. For this reason, in order to stably supply coal as a product, it is necessary to suppress variations in combustion characteristics of coal as a product.
例えば、燃焼効率が高く燃焼時間の短い石炭Ａと、燃焼効率が低く燃焼時間の長い石炭Ｂとを貯蔵している場合、石炭Ａと石炭Ｂを所定の割合で混合することで、燃焼効率と燃焼時間が安定した石炭を供給することが可能となる。しかし従来、石炭の混合（混炭）には比率制御による混合が行われておらず、結果として供給された石炭の燃焼が不安定なものとなることが多いという実状があった。 For example, when coal A having high combustion efficiency and short combustion time and coal B having low combustion efficiency and long combustion time are stored, coal A and coal B are mixed at a predetermined ratio, It becomes possible to supply coal with a stable combustion time. Conventionally, however, coal mixing (mixed coal) has not been mixed by ratio control, and as a result, the combustion of supplied coal often becomes unstable.
石炭の混合に関連する技術として、例えば、特許文献１や特許文献２に開示されているようなものが知られている。特許文献１に開示されている技術は、石炭に対してバイオマスの炭化物を混合するというものである。特許文献１によれば、コンベアにより貯炭場から搬送される石炭に対し、軽量ホッパにより質量計測された炭化物を混合するというものである。 As techniques related to coal mixing, for example, those disclosed in Patent Document 1 and Patent Document 2 are known. The technique disclosed in Patent Document 1 is to mix biomass carbide to coal. According to Patent Document 1, carbide measured in mass by a lightweight hopper is mixed with coal conveyed from a coal storage by a conveyor.
また、特許文献２に開示されている技術は、石炭に対して廃プラスチックや古紙などのサーマルリサイクル用燃料を混合するというものである。特許文献２では、コールセンタなどに貯蔵された石炭と、他の場所に貯蔵されたサーマルリサイクル用燃料とをトラックなどの荷台に合い積みし、これを搬送経路に接続された受入ホッパに供給し、ホッパや搬送経路を経た搬送工程において、石炭とサーマルリサイクル用燃料を混合するというものである。 Moreover, the technique currently disclosed by patent document 2 is mixing the fuel for thermal recyclings, such as a waste plastic and a waste paper, with coal. In Patent Document 2, coal stored in a call center or the like and fuel for thermal recycling stored in another place are stacked on a loading platform such as a truck, and this is supplied to a receiving hopper connected to a conveyance path. Coal and thermal recycling fuel are mixed in the transport process through the hopper and transport path.
確かに、上記文献に開示されているような技術を応用すれば、種類の異なる石炭（粉粒体）同士を混合し、安定した品質の石炭を供給することが可能となると考えられる。しかし、引用文献１に開示されている混合方法では単純に、質量を計量した炭化物を、コンベアにより搬送されてくる石炭に混合するというものであるため、石炭と炭化物の混合割合にバラツキが大きいといった問題がある。また、特許文献２に開示されている混合方法では、トラック等に積載する際に、重量比率により石炭とサーマルリサイクル用燃料の混合割合を定めておくことは可能であるが、搬送の都度両者の重量計測を行う必要があり、搬送と混合を連続して行うことはできないという問題がある。 Certainly, if a technique such as that disclosed in the above-mentioned document is applied, it will be possible to mix different types of coal (powder particles) and supply stable quality coal. However, the mixing method disclosed in the cited reference 1 simply mixes the weighed carbide into the coal conveyed by the conveyor, so there is a large variation in the mixing ratio of coal and carbide. There's a problem. Moreover, in the mixing method disclosed in Patent Document 2, it is possible to determine the mixing ratio of coal and thermal recycling fuel by weight ratio when loading on a truck or the like. There is a problem that it is necessary to perform weight measurement, and conveyance and mixing cannot be performed continuously.
そこで本発明では、石炭等の粉粒体を連続搬送する中で、予め定められた混合割合での混合を精度良く行うことのできる粉粒体混合システムを提供することを目的とする。 Therefore, an object of the present invention is to provide a granular material mixing system that can accurately perform mixing at a predetermined mixing ratio while continuously conveying granular particles such as coal.
上記目的を達成するための本発明に係る粉粒体混合システムは、特定種別の粉粒体Ａの質量を計測すると共に質量を計測された前記粉粒体Ａを搬送する第１粉粒体搬送経路と、前記粉粒体Ａと異なる種別の粉粒体Ｂの質量を計測すると共に質量を計測された前記粉粒体Ｂを搬送する第２粉粒体搬送経路と、前記粉粒体Ａと前記粉粒体Ｂを混合して精製される混合物を搬送する混合物搬送経路と、前記混合物搬送経路上の混合位置において精製される混合物における前記粉粒体Ａと前記粉粒体Ｂの混合比率を定め、前記混合物の混合比率が定めた値となるように、前記粉粒体Ｂの単位時間当たりの搬送量を調整する制御手段とを備え、前記制御手段は、前記粉粒体Ａの質量が計測されてから、前記粉粒体Ａが前記混合位置に至るまでの時間ｔ１から前記粉粒体Ｂの質量が計測されてから、前記粉粒体Ｂが前記混合位置に至るまでの時間ｔ２を減算して得られる時間差ｔ３に基づいて前記粉粒体Ｂの単位時間当たりの搬送量を調整する信号を前記第２粉粒体搬送経路へ出力することを特徴とする。 In order to achieve the above object, the granular material mixing system according to the present invention measures the mass of a specific type of granular material A and conveys the granular material A measured in mass. The second granular material conveyance path for conveying the powder, and the mass B, the mass of which is measured while measuring the mass of the powder B different from the granular material A, and the granular material A. Mixing ratio of the powder A and the powder B in the mixture transport path for transporting the mixture to be purified by mixing the powder B, and the mixture purified at the mixing position on the mixture transport path Control means for adjusting the conveyance amount per unit time of the granular material B so that the mixing ratio of the mixture becomes a predetermined value, and the control means has a mass of the granular material A. Time t1 from when the measurement is made until the powder A reaches the mixing position From the time difference t3 obtained by subtracting the time t2 from when the mass of the granular material B is measured until the granular material B reaches the mixing position, per unit time of the granular material B A signal for adjusting the transport amount is output to the second granular material transport path.
また、上記のような特徴を有する粉粒体混合システムにおいて前記制御手段は、計測された粉粒体Ａの質量と前記粉粒体Ａと前記粉粒体Ｂの混合比率とより算出される粉粒体Ｂの質量を単位時間毎に記憶する記憶手段を有し、前記粉粒体Ａの質量計測時から前記時間差ｔ３だけ前に記憶された粉粒体Ｂの質量を単位時間当たりの搬送量として前記信号を出力すると良い。 Moreover, in the granular material mixing system having the above-described characteristics, the control means calculates the powder calculated from the measured mass of the granular material A and the mixing ratio of the granular material A and the granular material B. It has a storage means for storing the mass of the granular material B per unit time, and the mass of the granular material B stored before the time difference t3 from the mass measurement of the granular material A is conveyed per unit time. The signal may be output as
このような構成とすることによれば、粉粒体Ｂの質量の計測位置から混合位置に至るまでにタイムラグがある場合であっても、粉粒体の混合を精度良く行うことができる。 According to such a configuration, even when there is a time lag from the measurement position of the mass of the granular material B to the mixing position, the granular material can be accurately mixed.
また、上記課題を解決するための本発明に係る粉粒体混合システムは、特定種別の粉粒体Ａの質量を計測すると共に質量を計測された前記粉粒体Ａを搬送する第１粉粒体搬送経路と、前記粉粒体Ａと異なる種別の粉粒体Ｂを搬送する第２粉粒体搬送経路と、前記粉粒体Ａと前記粉粒体Ｂを混合して精製される混合物の質量を計測すると共に前記混合物を搬送する混合物搬送経路と、前記混合物搬送経路上の混合位置において精製される混合物における前記粉粒体Ａと前記粉粒体Ｂの混合比率を定め、前記混合物の混合比率が定めた値となるように、前記粉粒体Ｂの単位時間当たりの搬送量を調整する制御手段とを備え、前記制御手段は、前記粉粒体Ａの質量が計測されてから、前記粉粒体Ｂと混合されて前記混合物搬送経路における質量計測位置に至るまでの時間ｔ４だけ以前に記憶された混合物の質量と前記混合物搬送経路において計測された実際の混合物の質量とを比較し、前記粉粒体Ｂの単位時間当たりの搬送量を調整する信号を前記第２粉粒体搬送経路へ出力することを特徴とするものであっても良い。 Moreover, the granular material mixing system which concerns on this invention for solving the said subject is the 1st granular material which conveys the said granular material A by which mass was measured while measuring the mass of the granular material A of a specific classification. A body transport path, a second powder transport path for transporting a different type of powder B from the powder A, and a mixture purified by mixing the powder A and the powder B Mixing the mixture by measuring the mass and determining the mixing ratio of the powder A and the powder B in the mixture transport path for transporting the mixture and the mixture purified at the mixing position on the mixture transport path Control means for adjusting the conveyance amount per unit time of the granular material B so that the ratio becomes a predetermined value, the control means, after the mass of the granular material A is measured, Mass measurement in the mixture conveyance path after being mixed with the powder B Compare the mass of the mixture previously stored for the time t4 until reaching the position and the mass of the actual mixture measured in the mixture conveyance path, and adjust the conveyance amount per unit time of the powder B A signal may be output to the second granular material conveyance path.
さらに、上記のような特徴を有する粉粒体混合システムにおいて前記制御手段から前記第２粉粒体搬送経路へ出力される信号は、前記第２粉粒体搬送経路を駆動するモータに対する指令回転数を指示するための指令信号であり、前記第２粉粒体搬送経路には、第２粉粒体搬送経路を構成するプーリの回転数を検出する実回転数検出手段が備えられ、前記モータに対する指令回転数と前記実回転数とを表示する指令手段を設けるようにすると良い。
このような構成とすることにより、第２粉粒体搬送経路におけるベルトスリップを検知することが可能となる。
Further, in the particulate mixing system having the above-described characteristics, the signal output from the control means to the second particulate transport path is a command rotational speed for a motor that drives the second particulate transport path. The second powder transport path is provided with an actual rotational speed detection means for detecting the rotational speed of a pulley constituting the second powder transport path, and is provided for the motor. It is preferable to provide command means for displaying the command rotational speed and the actual rotational speed.
By setting it as such a structure, it becomes possible to detect the belt slip in a 2nd granular material conveyance path | route.
上記のような特徴を有する粉粒体混合システムによれば、粉粒体を連続搬送する中で、予め定められた混合割合で、精度良く、粉粒体Ａと粉流体Ｂを混合することができる。 According to the granular material mixing system having the characteristics as described above, the granular material A and the powder fluid B can be mixed with high accuracy at a predetermined mixing ratio while continuously conveying the granular material. it can.
以下、本発明の粉粒体混合システムに係る実施の形態について、図面を参照しつつ詳細に説明する。なお、以下に示す実施形態では、混合対象とする粉粒体を石炭として、その具体例を挙げて説明する。よって、以下の説明において、石炭は粉粒体、混炭は混合物としてそれぞれ読み替えた場合であっても、その意味は変わらない。まず、図１を参照して本発明の粉粒体混合システム（以下、混炭システム１０と称す）に係る基本形態について説明する。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to a powder and particle mixture system of the present invention will be described in detail with reference to the drawings. In the embodiment described below, a specific example will be described with the granular material to be mixed as coal. Therefore, in the following description, even if it is a case where coal is read as a granular material and mixed coal is read as a mixture, the meaning does not change. First, with reference to FIG. 1, the basic form which concerns on the granular material mixing system (henceforth the coal blend system 10) of this invention is demonstrated.
本実施形態に係る混炭システム１０は、混炭搬送経路（混合物搬送経路）１２と第１石炭搬送経路（第１粉粒体搬送経路）２２、第２石炭搬送経路（第２粉粒体搬送経路）３２、制御手段４２、および指令手段５０を基本として構成される。 The coal blend system 10 according to the present embodiment includes a coal blend transport path (mixture transport path) 12, a first coal transport path (first powder transport path) 22, and a second coal transport path (second powder transport path). 32, the control means 42, and the command means 50.
混炭搬送経路１２は、詳細を後述する第１石炭搬送経路２２によって搬送される特定種別の石炭（以下、石炭Ａ（粉粒体Ａ）と称す）と第２石炭搬送経路３２によって搬送される石炭Ａと異なる種別の石炭（以下、石炭Ｂ（粉粒体Ｂ）と称す）の混合物（以下、混炭と称す）を貯蔵場所まで搬送するための搬送経路である。混炭搬送経路１２は、少なくとも上流混炭搬送手段１４と混炭計量手段１６、および下流混炭搬送手段２０とを備える。上流混炭搬送手段１４は、石炭Ａと、石炭Ｂとを混合するための搬送手段である。上流混炭搬送手段１４の具体的な構成の一例としては、モータ１４ａを介して駆動されるベルトコンベアを挙げることができる。上流混炭搬送手段１４を介した混合は、まず、石炭Ａを上流混炭搬送手段１４に移載する（以下、上流混炭搬送手段１４に対する石炭Ａの移載位置を移載位置と称す）。上流混炭搬送手段１４に移載された石炭Ａが、石炭Ｂの移載場所（以下、混合位置と称す）まで搬送されることで、石炭Ａと石炭Ｂが混合され、混炭が精製される。 The coal-carrying conveyance path 12 is a specific type of coal (hereinafter referred to as coal A (particulate A)) conveyed by a first coal conveyance path 22, which will be described in detail later, and coal conveyed by a second coal conveyance path 32. It is a conveyance route for conveying a mixture (hereinafter referred to as a mixed coal) of a different type of coal from A (hereinafter referred to as coal B (powder B)) to a storage location. The mixed coal conveyance path 12 includes at least an upstream mixed coal conveyance unit 14, a mixed coal metering unit 16, and a downstream mixed coal conveyance unit 20. The upstream mixed coal conveyance means 14 is a conveyance means for mixing the coal A and the coal B. As an example of a specific configuration of the upstream mixed coal conveyance means 14, a belt conveyor driven via a motor 14a can be cited. In the mixing via the upstream mixed coal conveying means 14, first, the coal A is transferred to the upstream mixed coal conveying means 14 (hereinafter, the transfer position of the coal A with respect to the upstream mixed coal conveying means 14 is referred to as a transfer position). The coal A transferred to the upstream mixed coal conveyance means 14 is conveyed to a transfer location (hereinafter referred to as a mixing position) of the coal B, whereby the coal A and the coal B are mixed and the mixed coal is refined.
混炭計量手段１６は、上流混炭搬送手段１４を介して精製された混炭の質量を計測する役割を担う。石炭Ａと石炭Ｂが所望する比率で混合されたか否かを、実際の混炭質量に基づいてフィードバックするためである。本実施形態の混炭計量手段１６は、ベルトスケールを採用する。ベルトスケールを採用することで、単位時間あたりに搬送されて来る混炭の質量を連続して計測することが可能となるからである。つまり、計量に際して上流混炭搬送手段１４を停止させる必要は無いのである。ベルトスケールである混炭計量手段１６は、モータ１６ａを介して駆動するベルトコンベアと、計量器１８を有する。 The blended coal metering means 16 plays a role of measuring the mass of the blended coal refined through the upstream blended coal conveying means 14. This is because whether or not the coal A and the coal B are mixed at a desired ratio is fed back based on the actual mixed coal mass. The blended carbon metering means 16 of the present embodiment employs a belt scale. It is because the mass of the mixed coal conveyed per unit time can be continuously measured by adopting the belt scale. In other words, it is not necessary to stop the upstream coal-carrying conveyance means 14 during measurement. The coal blend weighing means 16 which is a belt scale includes a belt conveyor driven via a motor 16 a and a meter 18.
下流混炭搬送手段２０は、混炭計量手段１６を介して計測された混炭を貯蔵場所まで搬送する搬送手段である。下流混炭搬送手段２０の構成は、上述した上流混炭搬送手段１４と同様であれば良く、例えばモータ２０ａを介して駆動されるベルトコンベアであれば良い。
このような構成の混炭搬送経路１２によれば、石炭Ａと石炭Ｂを混合して生成した混炭を計量し、その後貯蔵場所まで搬送することができる。
The downstream mixed coal conveying means 20 is a conveying means for conveying the mixed coal measured via the mixed coal metering means 16 to the storage location. The configuration of the downstream mixed coal conveyance means 20 may be the same as that of the upstream mixed coal conveyance means 14 described above, and may be, for example, a belt conveyor driven via a motor 20a.
According to the mixed coal conveyance path 12 having such a configuration, the mixed coal produced by mixing the coal A and the coal B can be weighed and then conveyed to the storage location.
第１石炭搬送経路２２は、石炭Ａの貯蔵場所である１次出荷元と上述した混炭搬送経路１２における移載位置とを結ぶ搬送経路である。第１石炭搬送経路２２は、上述した混炭搬送経路１２と同様に、上流石炭搬送手段２４と石炭Ａ計量手段２６、及び下流石炭搬送手段３０とを有する。上流石炭搬送手段２４は、１次出荷元に貯蔵された石炭Ａを石炭Ａ計量手段２６まで搬送する手段であり、例えばベルトコンベア等であれば良い。ベルトコンベアである上流石炭搬送手段２４には、駆動源としてのモータ２４ａが設けられている。 The 1st coal conveyance path 22 is a conveyance path which connects the primary shipping origin which is a storage place of coal A, and the transfer position in the mixed-coal conveyance path 12 mentioned above. The first coal conveyance path 22 includes an upstream coal conveyance means 24, a coal A metering means 26, and a downstream coal conveyance means 30, similarly to the above-described mixed coal conveyance path 12. The upstream coal conveying means 24 is means for conveying the coal A stored in the primary shipping source to the coal A measuring means 26, and may be a belt conveyor, for example. The upstream coal conveying means 24 that is a belt conveyor is provided with a motor 24a as a drive source.
石炭Ａ計量手段２６は、上流石炭搬送手段２４を介して搬送された石炭Ａの単位時間当たりの質量（ｔ／ｓ）を計測する役割を担う。この石炭Ａ計量手段２６によって計測される石炭Ａの質量と、詳細を後述する指令手段によって予め定められた混合比率に基づいて、石炭Ｂの搬送量（質量（ｔ／ｓ））を定めるためである。石炭Ａ計量手段２６としては、上記混炭搬送経路１２における混炭計量手段１６と同様に、モータ２６ａによって駆動されるベルトスケール等で良く、計量器１８を有する。ベルトスケールを採用することで、単位時間あたりに搬送されて来る混炭の質量を連続して計測することが可能となるからである。 The coal A measuring means 26 plays a role of measuring the mass (t / s) per unit time of the coal A conveyed via the upstream coal conveying means 24. In order to determine the transport amount (mass (t / s)) of coal B based on the mass of coal A measured by the coal A metering means 26 and the mixing ratio determined in advance by command means to be described in detail later. is there. The coal A metering means 26 may be a belt scale or the like driven by a motor 26a, as with the coal blend metering means 16 in the coal blend conveyance path 12, and has a meter 18. It is because the mass of the mixed coal conveyed per unit time can be continuously measured by adopting the belt scale.
下流石炭搬送手段３０は、石炭Ａ計量手段２６によって計測された後の石炭Ａを混炭搬送経路１２における移載位置まで搬送するための手段である。下流石炭搬送手段３０の具体的な構成としては、モータ３０ａを介して駆動されるベルトコンベアであれば良い。なお、第１石炭搬送経路２２における下流石炭搬送手段３０は必ずしも必要では無く、例えば石炭Ａ計量手段２６による石炭Ａの排出場所を混炭搬送経路１２上の移載位置とした場合には、下流石炭搬送手段３０は不要となる。 The downstream coal conveying means 30 is means for conveying the coal A after being measured by the coal A measuring means 26 to the transfer position in the mixed coal conveyance path 12. As a specific configuration of the downstream coal conveying means 30, any belt conveyor driven via a motor 30a may be used. In addition, the downstream coal conveyance means 30 in the 1st coal conveyance path | route 22 is not necessarily required, for example, when the discharge place of the coal A by the coal A measurement means 26 is made into the transfer position on the mixed-coal conveyance path | route 12, it is downstream coal. The conveying means 30 is not necessary.
第２石炭搬送経路３２は、少なくとも海上ホッパ３４と石炭Ｂ計量手段３６を備え、海上ホッパ３４に充填された石炭Ｂを混炭搬送経路１２における混合位置に移載する役割を担う。海上ホッパ３４には、船舶等から荷揚げされた石炭Ｂが充填され、海上ホッパ３４は、充填された石炭Ｂを石炭Ｂ計量手段３６に切り出す。 The second coal conveyance path 32 includes at least the marine hopper 34 and the coal B measuring means 36, and plays a role of transferring the coal B filled in the marine hopper 34 to the mixing position in the coal blend conveyance path 12. The offshore hopper 34 is filled with coal B unloaded from a ship or the like, and the offshore hopper 34 cuts out the filled coal B into the coal B measuring means 36.
石炭Ｂ計量手段３６は、海上ホッパ３４によって単位時間当たりに切り出された石炭Ｂの質量を計測しつつ、石炭Ｂを混炭搬送経路１２における混合位置に移載する。石炭Ｂ計量手段３６の具体的構成としては、ベルトスケールで良い。石炭Ｂ計量手段３６には、その駆動を制御するモータ３６ａと、計量器３８、及び駆動時における実回転数を計測するタコメータ４０が設けられている。石炭Ｂ計量手段３６を駆動するモータ３６ａは、詳細を後述する制御手段４２により回転数が制御される。また、タコメータ４０による実回転数のカウント値は、フィードバック値として制御手段４２に入力される。 The coal B measuring means 36 transfers the coal B to the mixing position in the mixed coal conveyance path 12 while measuring the mass of the coal B cut out per unit time by the offshore hopper 34. A specific configuration of the coal B measuring means 36 may be a belt scale. The coal B measuring means 36 is provided with a motor 36a for controlling the driving thereof, a measuring instrument 38, and a tachometer 40 for measuring the actual rotational speed at the time of driving. The rotational speed of the motor 36a that drives the coal B measuring means 36 is controlled by the control means 42 that will be described in detail later. The count value of the actual rotation speed by the tachometer 40 is input to the control means 42 as a feedback value.
制御手段４２は、少なくともＰＬＣ（Ｐｒｏｇｒａｍｍａｂｌｅ Ｌｏｇｉｃ Ｃｏｎｔｒｏｌｌｅｒ）４４、調節計４６、およびインバータ４８を備える。本実施形態に係る制御手段４２は、混炭の生成のための制御を行うことを目的としたものであり、主に第２石炭搬送経路３２の駆動制御を行う役割を担う。なお、混炭搬送経路１２や第１石炭搬送経路２２の駆動制御については、図示しない制御機構を介して成されることとする。 The control means 42 includes at least a PLC (Programmable Logic Controller) 44, a controller 46, and an inverter 48. The control means 42 which concerns on this embodiment aims at performing control for the production | generation of a coal blend, and bears the role which performs the drive control of the 2nd coal conveyance path | route 32 mainly. In addition, about the drive control of the coal blend conveyance path | route 12 and the 1st coal conveyance path | route 22, it shall be comprised via the control mechanism which is not shown in figure.
ＰＬＣ４４は、第１石炭搬送経路２２の石炭Ａ計量手段２６によって計測された石炭Ａの質量に基づいて、混合される石炭Ｂの適正質量を算出し、その値を信号として調節計４６に出力することを主な役割とする。ＰＬＣ４４には少なくとも、詳細を後述する指令手段５０からの指令値（混合比率）と石炭Ａ計量手段２６からの計測値が入力される。単位時間当たりにおける石炭Ａの質量と、石炭Ａと石炭Ｂの混合比率が解れば、指令値としての混合比率を満たすための石炭Ｂの質量を算出することができるからである。なお、石炭Ａの質量と、混合比率（ａ：ｂ）に基づく石炭Ｂの質量は、数式（１）に基づいて算出することができる。
また、本実施形態に係るＰＬＣ４４は、内蔵メモリ、あるいは外部記憶装置等の記憶手段（不図示）に、算出した石炭Ｂの質量を計測時の時刻と共に時系列的に記憶することを可能としている。本実施形態に係る混炭システム１０では、石炭Ａ計量手段２６から混合位置まで石炭Ａが搬送される時間ｔ１（時間単位：例えば秒）と石炭Ｂ計量手段３６が石炭Ｂの質量を計測してから石炭Ｂが混合位置に投入されるまでの時間ｔ２（秒）は予め求められている。このため、時系列的に記憶された石炭Ｂ（算出値）の質量のうち、現時点で検出された石炭Ａの質量に基づいて算出された石炭Ｂの質量よりもｔ１−ｔ２（秒）で求められる時間（時間差ｔ３）だけ前に算出された石炭Ｂの質量を調節計４６に出力することで、現時点で第２石炭搬送経路３２に求められる石炭Ｂの単位時間当たりの質量（搬送量）を提供することができることとなる（図２参照）。 Further, the PLC 44 according to the present embodiment makes it possible to store the calculated mass of coal B together with the time of measurement in a time series in a storage unit (not shown) such as an internal memory or an external storage device. . In the coal blend system 10 according to the present embodiment, the time t1 (time unit: second, for example) when the coal A is transported from the coal A measuring means 26 to the mixing position, and the coal B measuring means 36 measures the mass of the coal B. The time t2 (seconds) until the coal B is put into the mixing position is obtained in advance. For this reason, it calculates in t1-t2 (second) rather than the mass of coal B calculated based on the mass of coal A detected at present among the mass of coal B (calculated value) memorized in time series. By outputting the mass of coal B calculated before the time (time difference t3) to the controller 46, the mass per unit time (conveyed amount) of coal B required for the second coal conveyance path 32 at the present time is calculated. It can be provided (see FIG. 2).
このようにｔ１−ｔ２＝ｔ３（秒）前に算出された石炭Ｂの値に基づいて第２石炭搬送経路３２による石炭Ｂの搬送（搬出）質量を調節すれば、石炭Ｂ計量手段３６で計測される石炭Ｂの質量を調整した後、ｔ２（秒）後に混合位置に移載される石炭Ｂの質量を算出値に合わせることができる。 In this way, if the mass of coal B transported (unloaded) by the second coal transport path 32 is adjusted based on the value of coal B calculated before t1−t2 = t3 (seconds), the measurement is performed by the coal B measuring means 36. After the mass of coal B to be adjusted is adjusted, the mass of coal B transferred to the mixing position after t2 (seconds) can be adjusted to the calculated value.
また、本実施形態に係るＰＬＣ４４には、インバータ４８からモータ３６ａへ出力される指令回転数と、タコメータ４０によって検出される石炭Ｂ計量手段３６（ベルトコンベア）の実回転数、及び混炭計量手段１６によって計測される混炭質量が入力される。指令回転数と実回転数は、（指令回転数）−（実回転数）といった計算により回転数差が算出され、この回転数差が一定以上になった場合には石炭Ｂ計量手段３６による石炭Ｂの搬送が停止される。ベルトコンベアのベルトスリップが大きいと判断されるためである。なお、指令回転数と実回転数は、詳細を後述する指令手段５０に出力される。 Further, in the PLC 44 according to the present embodiment, the command rotational speed output from the inverter 48 to the motor 36a, the actual rotational speed of the coal B metering means 36 (belt conveyor) detected by the tachometer 40, and the mixed coal metering means 16 The mixed coal mass measured by is input. The command rotation speed and the actual rotation speed are calculated as (command rotation speed) − (actual rotation speed), and when the rotation speed difference becomes a certain value or more, the coal by the coal B measuring means 36 The conveyance of B is stopped. This is because it is determined that the belt slip of the belt conveyor is large. The command rotation speed and the actual rotation speed are output to the command means 50 described later in detail.
また、混炭計量手段１６によって計測される混炭質量が入力されることで、この計測値をフィードバック値として指令回転数と実回転数のズレによって生ずる石炭Ｂの単位時間当たりの搬送量の誤差を知ることができる。石炭Ｂの単位時間当たりの搬送量の誤差を知ることにより、指令回転数の補正による石炭Ｂの搬送量の補正を行うことができ、石炭混合の精度を向上させることができる。 Further, by inputting the blended mass measured by the blended coal metering means 16, the measured value is used as a feedback value to know the error in the transport amount per unit time of coal B caused by the difference between the command rotational speed and the actual rotational speed. be able to. By knowing the error in the transport amount per unit time of coal B, the transport amount of coal B can be corrected by correcting the command rotation speed, and the accuracy of coal mixing can be improved.
調節計４６は、現在、単位時間当たりに搬送されている質量と、ＰＬＣ４４により算出されたｔ１−ｔ２秒後に必要とされる単位時間当たりの搬送量（質量）とを比較し、石炭Ｂ計量手段３６による石炭Ｂの搬送速度を上げる、または下げるといった指令値、あるいは上げ下げする速度を定めた指令値をインバータ４８に出力する役割を担う。このため、調節計４６には少なくとも、石炭Ｂ計量手段３６による計測値と、ＰＬＣ４４により算出されたｔ１−ｔ２秒後に必要とされる単位時間あたりの石炭Ｂの質量が入力される。 The controller 46 compares the mass currently transported per unit time with the transport amount (mass) per unit time required after t1-t2 seconds calculated by the PLC 44, and measures the coal B measuring means. It plays a role of outputting to the inverter 48 a command value for increasing or decreasing the transport speed of the coal B by 36, or a command value that determines the speed to increase or decrease. For this reason, at least the measurement value by the coal B measuring means 36 and the mass of the coal B per unit time required after t1-t2 seconds calculated by the PLC 44 are input to the controller 46.
インバータ４８は、調節計４６から出力された指令値に基づいて、モータ３６ａの回転数を定め、その回転数（指令回転数）に合わせた駆動信号を出力する役割を担う。また、インバータ４８は、ＰＬＣ４４に対し、フィードバック値として指令回転数を出力する。これによりＰＬＣ４４では、タコメータ４０により計測される実回転数との回転差を算出することが可能となる。 The inverter 48 plays a role of determining the rotation speed of the motor 36a based on the command value output from the controller 46 and outputting a drive signal in accordance with the rotation speed (command rotation speed). Further, the inverter 48 outputs a command rotational speed as a feedback value to the PLC 44. As a result, the PLC 44 can calculate the rotational difference from the actual rotational speed measured by the tachometer 40.
指令手段５０は、ＰＬＣ４４に対して、石炭Ａと石炭Ｂの混合比率を出力するための入力手段及び種々のフィードバック値を表示するための表示手段としての役割を担う。また、指令手段５０は、図３に示すように石炭Ａや石炭Ｂの搬送経路が複数あるような場合に、搬送経路の選択を行う機能も有する。 The command means 50 plays a role as an input means for outputting the mixing ratio of coal A and coal B to the PLC 44 and a display means for displaying various feedback values. Further, the command means 50 also has a function of selecting a transport route when there are a plurality of transport routes of coal A and coal B as shown in FIG.
例えば図３に示す例の場合、第１石炭搬送経路２２が２系統（Ｓ２１Ｒ，Ｓ１１Ｒ）と、混炭搬送経路１２が２系統（ＳＳ１，ＳＢ１）あり、選択される経路としては４つの経路が存在することとなる。
搬送経路がこのような構成である場合には、指令手段の表示画面として、図４に示すような入出力画面が表示される。
For example, in the case of the example shown in FIG. 3, the first coal transport route 22 has two systems (S21R, S11R) and the mixed coal transport route 12 has two systems (SS1, SB1), and there are four routes to be selected. Will be.
When the transport path has such a configuration, an input / output screen as shown in FIG. 4 is displayed as the display screen of the command means.
入出力画面５２は少なくとも、混炭搬送経路１２の選択を入力する領域と、混炭比率を入力する領域、および実機のフィードバックデータを表示する領域を有する。混炭搬送経路の入力領域は、１次出荷元経路の選択と、搬送経路の選択を行うための領域である。１次出荷元経路の選択は、石炭Ａの種別を選択するための経路選択であり、図３に示す例では、２種類の経路が選択できる（Ｓ２１ＲとＳ１１Ｒ）。また、搬送経路の選択は、石炭Ａと石炭Ｂとを混合し、精製した混炭を搬送するための経路（混炭搬送経路１２）を選択するための経路選択であり、図３に示す例では、２種類の経路が選択できる（ＳＳ１とＳＢ１）。なお、経路の選択は、直接入力によっても良いし、図示しない選択画面（例えばポップアップ画面）からの選択等であっても良い。 The input / output screen 52 has at least an area for inputting selection of the mixed coal conveyance route 12, an area for inputting the mixed coal ratio, and an area for displaying feedback data of the actual machine. The input area of the mixed coal conveyance route is an area for selecting the primary shipping source route and selecting the conveyance route. The selection of the primary shipping source route is a route selection for selecting the type of coal A. In the example shown in FIG. 3, two types of routes can be selected (S21R and S11R). Moreover, the selection of a conveyance path | route is a path selection for selecting the path | route (mixed coal conveyance path | route 12) for mixing coal A and coal B, and conveying refined mixed coal, and in the example shown in FIG. Two types of routes can be selected (SS1 and SB1). The route may be selected by direct input, or may be selected from a selection screen (not shown) (for example, a pop-up screen).
混炭比率の入力領域は、１次出荷元からの石炭Ａの重量比率と、海上ホッパ３４から供給される石炭Ｂの重量比率を定めるための入力領域である。この混炭比率の入力領域への入力値により、精製される混炭の特性が定まる。比率の入力は、ａ：ｂとなるように入力する。 The coal blend ratio input area is an input area for determining the weight ratio of coal A from the primary shipping source and the weight ratio of coal B supplied from the offshore hopper 34. The characteristic of the mixed coal to be refined is determined by the input value to the input region of the mixed coal ratio. The ratio is input so as to be a: b.
実機フィードバックデータの表示領域は、実施形態に係る混炭システム１０の駆動状態を知るためのデータを表示する領域であり、この領域に表示されるデータに基づいて、手動または自動でシステムの停止または指令値の変更が行われる。表示される実機データとしては、例えば海上ホッパ３４からの払い出し量や、石炭Ｂ計量手段３６を駆動するモータ３６ａに対する指令回転数、および石炭Ｂ計量手段３６のプーリが回転することから検出される実際の回転数などを挙げることができる。 The actual machine feedback data display area is an area for displaying data for knowing the driving state of the coal blending system 10 according to the embodiment. Based on the data displayed in this area, the system is stopped or commanded manually or automatically. The value is changed. The actual machine data to be displayed includes, for example, the amount of payout from the offshore hopper 34, the command rotational speed for the motor 36a that drives the coal B measuring means 36, and the actual detected from the rotation of the pulley of the coal B measuring means 36. Can be mentioned.
このような基本構成を有する混炭システム１０では、第１石炭搬送経路２２、第２石炭搬送経路３２、および混炭搬送経路１２における単位時間あたりの搬送量は、図５に示すような変化を示す。なお、図５において、図５（Ａ）は、第１石炭搬送経路２２の単位時間当たりにおける石炭Ａの搬送量を示すもので、横軸が経過時間、縦軸が単位時間当たりの石炭Ａの搬送量を示す。また、図５（Ｂ）は、第２石炭搬送経路３２の単位時間当たりにおける石炭Ｂの搬送量を示すもので、横軸が経過時間、縦軸が単位時間当たりの石炭Ｂの搬送量を示す。さらに、図５（Ｃ）は、混炭搬送経路１２の単位時間当たりにおける石炭Ａ、および石炭Ｂの搬送量を示すもので、横軸が搬送距離、縦軸が単位時間当たりの搬送量を示す。 In the coal blend system 10 having such a basic configuration, the transport amount per unit time in the first coal transport path 22, the second coal transport path 32, and the coal blend transport path 12 shows a change as shown in FIG. In FIG. 5, FIG. 5A shows the transport amount of coal A per unit time of the first coal transport path 22, the horizontal axis is the elapsed time, and the vertical axis is the coal A per unit time. Indicates the transport amount. FIG. 5B shows the transport amount of coal B per unit time of the second coal transport path 32, where the horizontal axis shows the elapsed time and the vertical axis shows the transport amount of coal B per unit time. . Further, FIG. 5C shows the transport amount of coal A and coal B per unit time of the blended coal transport route 12, where the horizontal axis represents the transport distance and the vertical axis represents the transport amount per unit time.
図５から読み取れるように、図５（Ａ）に示す第１石炭搬送経路２２における石炭Ａの搬送は、搬送開始直後から略定量となるように開始されている。一方、図５（Ｂ）に示す第２石炭搬送経路３２における石炭Ｂの搬送は、第１石炭搬送経路２２による石炭Ａの搬送が開始されてから所定時間経過した後に開始されている。この時間差は、石炭Ａ計量手段２６と石炭Ｂ計量手段３６との間における混合位置までの搬送距離の違いを示すものである。なお、図５に示す例では、説明を簡単化するために、石炭Ｂ計量手段３６から混合位置までの距離は０としている。 As can be seen from FIG. 5, the transport of coal A in the first coal transport path 22 shown in FIG. 5 (A) is started so as to be substantially fixed immediately after the start of transport. On the other hand, the transport of the coal B in the second coal transport path 32 shown in FIG. 5B is started after a predetermined time has elapsed since the transport of the coal A by the first coal transport path 22 is started. This time difference indicates the difference in the transport distance to the mixing position between the coal A metering means 26 and the coal B metering means 36. In the example shown in FIG. 5, the distance from the coal B measuring means 36 to the mixing position is set to 0 in order to simplify the description.
また、図５（Ｃ）で示すグラフは、混炭搬送経路１２における移載位置（石炭Ａが投入される位置）からの石炭の移動距離と、単位時間当たりの搬送量の変化を示すものであるため、混合位置において石炭Ｂが投入され、搬送量が増えていることを読み取ることができる。また、図５に示す例では、石炭Ａと石炭Ｂとを１：１で混合するようにしていることも読み取ることができる。 The graph shown in FIG. 5 (C) shows the movement distance of coal from the transfer position (position where coal A is introduced) in the mixed coal conveyance path 12 and the change in the conveyance amount per unit time. Therefore, it can be read that the coal B is introduced at the mixing position and the conveyance amount is increased. Moreover, in the example shown in FIG. 5, it can also be read that coal A and coal B are mixed at 1: 1.
上記実施形態に係る混炭システム１０では、計量手段として、石炭Ａ計量手段２６、石炭Ｂ計量手段３６、および混炭計量手段１６を備える構成としていた。しかしながら本実施形態に係る混炭システム１０ａは図６に示すように、石炭Ｂ計量手段を省いた状態でも成り立たせることができる。 In the coal blend system 10 according to the above embodiment, the coal A metering means 26, the coal B metering means 36, and the coal blend metering means 16 are provided as metering means. However, the coal blend system 10a according to the present embodiment can be realized even when the coal B measuring means is omitted, as shown in FIG.
この場合には、制御手段４２におけるＰＬＣ４４の記憶手段に、石炭Ａ計量手段２６により計測された石炭Ａの単位時間当たりの搬送量（質量）と石炭Ａと石炭Ｂの混合比率より算出される石炭Ｂの質量と、計測された石炭Ａの質量と算出された石炭Ｂの質量とを加算して得られる混炭の質量とをそれぞれ、単位時間毎に記憶させる。そして、調節計４６では、混炭計量手段１６によって実際に検出された混炭の質量と、現時点を基準として石炭Ａ計量手段２６から混炭計量手段１６までの石炭Ａの搬送に要する時間（ｔ４）だけ以前に記憶された混炭の質量とを比較して質量の差分を求め、差分を減らすように、石炭Ｂ搬送手段３６の回転数を上げ下げするための制御信号をインバータ４８へ出力する。
このような構成とした場合であっても、本実施形態に係る混炭システムとすることができる。
In this case, the storage unit of the PLC 44 in the control unit 42 stores the coal calculated from the transport amount (mass) of coal A per unit time measured by the coal A measuring unit 26 and the mixing ratio of the coal A and coal B. The mass of B, the mass of coal A obtained by adding the mass of measured coal A and the calculated mass of coal B are stored for each unit time. In the controller 46, the mass of the coal blend actually detected by the coal blend metering means 16 and the time (t4) required to transport the coal A from the coal A metering means 26 to the coal blend metering means 16 based on the current time Is compared with the mass of the coal blend stored in, and a difference in mass is obtained, and a control signal for increasing or decreasing the rotational speed of the coal B conveying means 36 is output to the inverter 48 so as to reduce the difference.
Even if it is a case where it is set as such a structure, it can be set as the coal blend system which concerns on this embodiment.
また、上記実施形態では、混合対象とする粉粒体の具体例として石炭を挙げ、混合システムとしては混炭システムとして説明した。しかしながら本発明に係る混合システムは、混合対象を木材チップや小麦、あるいは米等の粉粒体とした場合であっても、適用することができる。 Moreover, in the said embodiment, coal was mentioned as a specific example of the granular material made into mixing object, and it demonstrated as a coal blend system as a mixing system. However, the mixing system according to the present invention can be applied even when the mixing object is a wood chip, wheat, rice, or other powder.
１０………混炭システム、１２………混炭搬送経路、１４………上流混炭搬送手段、１６………混炭計量手段、１８………計量器、２０………下流混炭搬送手段、２２………第１石炭搬送経路、２４………上流石炭搬送手段、２６………石炭Ａ計量手段、２８………計量器、３０………下流石炭搬送手段、３２………第２石炭搬送経路、３４………海上ホッパ、３６………石炭Ｂ計量手段、３８………計量器、４０………タコメータ、４２………制御手段、４４………ＰＬＣ、４６………調節計、４８………インバータ、５０………指令手段。 DESCRIPTION OF SYMBOLS 10 ......... Blended coal system, 12 ......... Blended coal conveyance route, 14 ......... Upstream blended coal conveying means, 16 ......... Blended coal measuring means, 18 ......... Meter, 20 ...... Downstream blended coal conveying means, 22 ... ... 1st coal conveyance path, 24 ... ... Upstream coal conveyance means, 26 ... ... Coal A metering means, 28 ... ... Metering device, 30 ... ... Downstream coal conveyance means, 32 ... ... 2nd coal conveyance Route 34 ......... Marine Hopper 36 ......... Coal B Weighing Means 38 ......... Weighing Instrument 40 ......... Tachometer 42 ......... Control Means 44 ... PLC 46 ......... Regulator , 48... Inverter, 50.
Claims (4)
前記粉粒体Ａと異なる種別の粉粒体Ｂの質量を計測すると共に質量を計測された前記粉粒体Ｂを搬送する第２粉粒体搬送経路と、
前記粉粒体Ａと前記粉粒体Ｂを混合して精製される混合物を搬送する混合物搬送経路と、
前記混合物搬送経路上の混合位置において精製される混合物における前記粉粒体Ａと前記粉粒体Ｂの混合比率を定め、前記混合物の混合比率が定めた値となるように、前記粉粒体Ｂの単位時間当たりの搬送量を調整する制御手段とを備え、
前記制御手段は、前記粉粒体Ａの質量が計測されてから、前記粉粒体Ａが前記混合位置に至るまでの時間ｔ１から前記粉粒体Ｂの質量が計測されてから、前記粉粒体Ｂが前記混合位置に至るまでの時間ｔ２を減算して得られる時間差ｔ３に基づいて前記粉粒体Ｂの単位時間当たりの搬送量を調整する信号を前記第２粉粒体搬送経路へ出力することを特徴とする粉粒体混合システム。 A first granular material transport path for measuring the mass of the specific type of granular material A and conveying the granular material A measured in mass;
Measuring the mass of a different type of granular material B from the granular material A and conveying the granular material B whose mass was measured;
A mixture transport path for transporting a mixture to be refined by mixing the powder A and the powder B;
The powder B is determined so that the mixing ratio of the powder A and the powder B in the mixture to be refined at the mixing position on the mixture transport path is determined and the mixing ratio of the mixture becomes a determined value. Control means for adjusting the transport amount per unit time of
The control means measures the mass of the granular material B from the time t1 from when the mass of the granular material A is measured until the granular material A reaches the mixing position. A signal for adjusting the transport amount per unit time of the powder B based on the time difference t3 obtained by subtracting the time t2 until the body B reaches the mixing position is output to the second powder transport path. A granular material mixing system characterized by:
前記粉粒体Ａの質量計測時から前記時間差ｔ３だけ前に記憶された粉粒体Ｂの質量を単位時間当たりの搬送量として前記信号を出力することを特徴とする請求項１に記載の粉粒体混合システム。 The said control means is a memory | storage means which memorize | stores the mass of the granular material B calculated from the measured mass of the granular material A and the mixing ratio of the said granular material A and the said granular material B for every unit time. Have
2. The powder according to claim 1, wherein the signal is output with the mass of the powder B stored as the time difference t <b> 3 before the measurement of the mass of the powder A as the transport amount per unit time. Granule mixing system.
前記粉粒体Ａと異なる種別の粉粒体Ｂを搬送する第２粉粒体搬送経路と、
前記粉粒体Ａと前記粉粒体Ｂを混合して精製される混合物の質量を計測すると共に前記混合物を搬送する混合物搬送経路と、
前記混合物搬送経路上の混合位置において精製される混合物における前記粉粒体Ａと前記粉粒体Ｂの混合比率を定め、前記混合物の混合比率が定めた値となるように、前記粉粒体Ｂの単位時間当たりの搬送量を調整する制御手段とを備え、
前記制御手段は、前記粉粒体Ａの質量が計測されてから、前記粉粒体Ｂと混合されて前記混合物搬送経路における質量計測位置に至るまでの時間ｔ４だけ以前に記憶された混合物の質量と前記混合物搬送経路において計測された実際の混合物の質量とを比較し、前記粉粒体Ｂの単位時間当たりの搬送量を調整する信号を前記第２粉粒体搬送経路へ出力することを特徴とする粉粒体混合システム。 A first granular material transport path for measuring the mass of the specific type of granular material A and conveying the granular material A measured in mass;
A second granular material conveyance path for conveying a granular material B of a different type from the granular material A,
A mixture transport path for transporting the mixture while measuring the mass of the mixture to be purified by mixing the powder A and the powder B;
The powder B is determined so that the mixing ratio of the powder A and the powder B in the mixture to be refined at the mixing position on the mixture transport path is determined and the mixing ratio of the mixture becomes a determined value. Control means for adjusting the transport amount per unit time of
The control means is the mass of the mixture stored only before the time t4 from when the mass of the granular material A is measured to when it is mixed with the granular material B to reach the mass measurement position in the mixture conveyance path. And the mass of the actual mixture measured in the mixture conveyance path, and a signal for adjusting the conveyance amount per unit time of the powder B is output to the second powder conveyance path. A granular material mixing system.
前記第２粉粒体搬送経路には、第２粉粒体搬送経路を構成するプーリの回転数を検出する実回転数検出手段が備えられ、
前記モータに対する指令回転数と前記実回転数とを表示する指令手段を設けたことを特徴とする請求項１乃至請求項３のいずれか１項に記載の粉粒体混合システム。 The signal output from the control means to the second particulate transport path is a command signal for instructing a command rotational speed for a motor that drives the second particulate transport path,
The second granular material transport path is provided with an actual rotational speed detection means for detecting the rotational speed of a pulley constituting the second granular material transport path,
4. The granular material mixing system according to any one of claims 1 to 3, further comprising command means for displaying a command rotational speed for the motor and the actual rotational speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011038272A JP5729007B2 (en) | 2011-02-24 | 2011-02-24 | Powder and particle mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011038272A JP5729007B2 (en) | 2011-02-24 | 2011-02-24 | Powder and particle mixing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012170941A true JP2012170941A (en) | 2012-09-10 |
| JP5729007B2 JP5729007B2 (en) | 2015-06-03 |
Family
ID=46974347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011038272A Active JP5729007B2 (en) | 2011-02-24 | 2011-02-24 | Powder and particle mixing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5729007B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279700A (en) * | 2014-06-26 | 2016-01-27 | 中煤科工集团北京华宇工程有限公司 | Coal blending method and system |
| JP2017047976A (en) * | 2015-08-31 | 2017-03-09 | 宇部興産機械株式会社 | Method of controlling belt conveyer system |
| CN107828454A (en) * | 2017-10-27 | 2018-03-23 | 广西华银铝业有限公司 | A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method |
| JP6954495B1 (en) * | 2020-12-16 | 2021-10-27 | 中国電力株式会社 | Storage equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503476B1 (en) * | 1970-09-30 | 1975-02-05 | ||
| JPS6272948A (en) * | 1985-09-25 | 1987-04-03 | Kubota Ltd | Transmission belt slip detecting device |
| JPH01207124A (en) * | 1988-02-13 | 1989-08-21 | Satake Eng Co Ltd | Grain mixer |
| JPH1077113A (en) * | 1996-08-30 | 1998-03-24 | Lion Corp | Powder mixer and manufacture of mixed powder |
| JPH1185288A (en) * | 1997-09-11 | 1999-03-30 | Satake Eng Co Ltd | Mixing device for granule |
-
2011
- 2011-02-24 JP JP2011038272A patent/JP5729007B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503476B1 (en) * | 1970-09-30 | 1975-02-05 | ||
| JPS6272948A (en) * | 1985-09-25 | 1987-04-03 | Kubota Ltd | Transmission belt slip detecting device |
| JPH01207124A (en) * | 1988-02-13 | 1989-08-21 | Satake Eng Co Ltd | Grain mixer |
| JPH1077113A (en) * | 1996-08-30 | 1998-03-24 | Lion Corp | Powder mixer and manufacture of mixed powder |
| JPH1185288A (en) * | 1997-09-11 | 1999-03-30 | Satake Eng Co Ltd | Mixing device for granule |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279700A (en) * | 2014-06-26 | 2016-01-27 | 中煤科工集团北京华宇工程有限公司 | Coal blending method and system |
| JP2017047976A (en) * | 2015-08-31 | 2017-03-09 | 宇部興産機械株式会社 | Method of controlling belt conveyer system |
| CN107828454A (en) * | 2017-10-27 | 2018-03-23 | 广西华银铝业有限公司 | A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method |
| JP6954495B1 (en) * | 2020-12-16 | 2021-10-27 | 中国電力株式会社 | Storage equipment |
| WO2022130526A1 (en) * | 2020-12-16 | 2022-06-23 | 中国電力株式会社 | Storage facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5729007B2 (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110003931B (en) | Coal blending control system and method | |
| JP5729007B2 (en) | Powder and particle mixing system | |
| JP6668643B2 (en) | Control method of belt conveyor system | |
| JP6478835B2 (en) | Fixed quantity supply system | |
| JP5425663B2 (en) | Weight sorter | |
| JP2009047519A (en) | Weighing device | |
| JP2012188282A (en) | Powder volumetric feeding method | |
| CN101560599B (en) | Thickness control method and control system of mixed material layer | |
| JP6529167B2 (en) | Combination weighing device | |
| JP4669690B2 (en) | Weighing equipment | |
| JP5289216B2 (en) | Combination scale | |
| JP5661481B2 (en) | Weighing object supply device and seasoning device provided with the supply device | |
| JP6449116B2 (en) | Weight sorter | |
| JP3917064B2 (en) | Weighing seasoning system | |
| JP2007046968A (en) | Combination balance | |
| CA2496940C (en) | Controlling feeding of solid matter | |
| JP5203813B2 (en) | Weighing and packaging system and combination weigher | |
| JP4421321B2 (en) | Product packaging system and product packaging method | |
| JP2010064817A (en) | Article conveying device for combination balance | |
| JP6274427B2 (en) | Weighing device | |
| JP2007204179A (en) | Powder level control method and device | |
| JP2005162394A (en) | Dispersive supplying device and combination weighting device equipped therewith | |
| JP2005206848A (en) | Method for controlling amount of raw material charged into blast furnace, program therefor and method for operating blast furnace | |
| JP2018165192A (en) | Sorting apparatus | |
| JP2010164336A (en) | Combination balance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20131016 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20131219 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140919 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140929 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141028 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150310 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150323 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5729007 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |