JPS6382223A - Pressure transporting device for combustible powder - Google Patents
Pressure transporting device for combustible powderInfo
- Publication number
- JPS6382223A JPS6382223A JP22665386A JP22665386A JPS6382223A JP S6382223 A JPS6382223 A JP S6382223A JP 22665386 A JP22665386 A JP 22665386A JP 22665386 A JP22665386 A JP 22665386A JP S6382223 A JPS6382223 A JP S6382223A
- Authority
- JP
- Japan
- Prior art keywords
- silo
- inert gas
- tank
- storage tank
- valve device
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 27
- 239000011261 inert gas Substances 0.000 claims abstract description 48
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims description 36
- 238000005086 pumping Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 230000032258 transport Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、可燃性粉体を不活性ガスを利用して圧送する
圧送装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a pumping device for pumping combustible powder using an inert gas.
（従来の技術）
石炭粉などの可燃性粉体は周囲の酸素濃度が一定以上に
なると粉塵爆発を起こす危険があるため、その圧送に当
たっては圧送系内の酸素濃度が粉塵爆発下限界濃度を常
に下回るように抑えなければならない。このため、例え
ば第２図に示すような窒素等の不活性ガスを利用した圧
送装置が提案されている（特開昭５７−１９９７２５号
）。(Prior technology) Combustible powder such as coal powder has the risk of causing a dust explosion if the surrounding oxygen concentration exceeds a certain level. It must be kept below. For this reason, a pressure feeding device using an inert gas such as nitrogen as shown in FIG. 2 has been proposed (Japanese Patent Application Laid-open No. 199725/1983).
これは、輸送＄１の貯留タンク２内の可燃性粉体をサイ
ロ５へ圧送するための装置であり、輸送車１は圧送時に
貯留タンク２を後傾させるグンプシリング３を備えてい
る。貯留タンク２の後部とサイロ５の上部は圧送ｆ４に
より接続され、貯留タンク２及び圧送管・ｔの上流部に
は混合気供給管６が継手２９を介して接続する。混合気
供給管６にはコンプレッサ９が介装され、その吸込側に
不活性ガスの混合気を蓄えた給気タンク７が接続する。This is a device for force-feeding the combustible powder in the storage tank 2 for transportation $1 to the silo 5, and the transport vehicle 1 is equipped with a Gumpschilling 3 that tilts the storage tank 2 backward during pressure-feeding. The rear part of the storage tank 2 and the upper part of the silo 5 are connected by a pressure feed f4, and the mixture supply pipe 6 is connected via a joint 29 to the upstream portion of the storage tank 2 and the pressure feed pipe t. A compressor 9 is interposed in the mixture supply pipe 6, and an air supply tank 7 storing an inert gas mixture is connected to the suction side of the compressor 9.
貯留タンク２内の粉体はこの給気タンク７がらコンプレ
ッサ９を介して加圧供給された混合気により圧送Ｗ４を
通じてサイロ５に圧送され、サイロ５において混合気と
分離されて内部に堆積する。また、混合気はフィルタ４
０を介してサイロ５の上端部に接続する吸気管１３を通
じてコンプレッサ９に再供給される。The powder in the storage tank 2 is pressurized and supplied from the air supply tank 7 through the compressor 9, and is forced into the silo 5 through the pressure feed W4, where it is separated from the mixture and deposited inside. Also, the air-fuel mixture is filtered through filter 4.
0 to the upper end of the silo 5 through an intake pipe 13 connected to the upper end of the silo 5.
なお、１０は給気タンク７の混合気に不活性ガスを補給
する不活性ガスのＩａＭタンクであり、パルプ４１を介
して給気タンク７に接続される。また、サイロ３の下端
部には内部に堆積した粉体を排出する排出口１９が形成
され、この排出口１９に給気タンク７の混合気を利用し
て排出を促進するエアレーション装置４２が介装される
。一方、サイロ５の上端部には粉体の排出時等に大気を
導入してサイロ５内が負圧になるのを防止するバキュー
ムブレーカ１５が設（すられる。Note that 10 is an inert gas IaM tank that supplies inert gas to the mixture in the air supply tank 7, and is connected to the air supply tank 7 via a pulp 41. Further, a discharge port 19 is formed at the lower end of the silo 3 for discharging the powder accumulated inside the silo, and an aeration device 42 is interposed in the discharge port 19 to promote discharge by using the air-fuel mixture in the air supply tank 7. equipped. On the other hand, a vacuum breaker 15 is installed at the upper end of the silo 5 to prevent the inside of the silo 5 from becoming a negative pressure by introducing atmospheric air when discharging powder.
（発明が解決しようとする問題、ζ父）このＶＣ置にお
いて混合気中の酸素濃度を抑える不活性ガスはパルプ４
１を開くことで給気タンク７の中に補給されるようにな
っている。ところが、そのためには貯留タンク２やサイ
ロ５内の混合気に含まれる酸素濃度を常に監視しながら
パルプ４１を操作しなければならず、作業は大変に面倒
であった。(Problem to be solved by the invention, ζ father) In this VC device, the inert gas that suppresses the oxygen concentration in the mixture is pulp 4
By opening 1, the air is supplied into the air supply tank 7. However, in order to do so, it was necessary to operate the pulp 41 while constantly monitoring the oxygen concentration contained in the air-fuel mixture in the storage tank 2 and the silo 5, which was a very troublesome operation.
また、サイロ５にはバキュームブレーカ１５の作動時に
大気が導入されることなどから、運転時の貯留タンク２
とサイロ５の内部の酸素濃度は必ずしも同一にはならな
い、ところが、備蓄タンク１０の不活性ガスはパルプ４
１からいったん給気タンク７に補給され、混合気としで
循環するようになっているため、例えばサイロ５内の酸
素濃度が高すぎる場合にパルプ４１を開いてもサイロ５
内の酸素濃度が低下するまでには時間がかがる。In addition, since air is introduced into the silo 5 when the vacuum breaker 15 is activated, the storage tank 2 during operation
The oxygen concentration inside the silo 5 is not necessarily the same, but the inert gas in the storage tank 10 is
1 is once supplied to the air supply tank 7 and circulated as a mixture, so for example, if the oxygen concentration in the silo 5 is too high, even if the pulp 41 is opened, the silo 5
It takes time for the oxygen concentration inside the tank to drop.
つまり、この装置においては貯留タンク２やサイロ５の
酸素濃度を個別に制御することができず、安全を確保す
るためには混合気中の不活性ガス濃度を極めて高くしな
ければならないことから不活性ガスの使用量が多いとい
う問題もあった。In other words, in this device, it is not possible to individually control the oxygen concentration in the storage tank 2 and silo 5, and in order to ensure safety, the inert gas concentration in the mixture must be extremely high. Another problem was that the amount of active gas used was large.
本発明は、不活性ガスを利用した可燃性粉体の圧送装置
における上記問題点を解決すべく、貯留タンクとサイロ
の酸素濃度を自動的かつ個別に制御できる圧送装置を提
供することを目的とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems in a combustible powder pumping device using an inert gas, the present invention aims to provide a pumping device that can automatically and individually control the oxygen concentration in a storage tank and a silo. do.
（問題点を解決するための手ｙ、）
本発明は、可燃性粉体を貯留タンクからサイロへ圧送す
る圧送回路と、不活性がスの混合気を蓄えた給気タンク
と、この給気タンクの混合気を貯留タンク並びに圧送回
路へ供給する加圧装置を介装した混合気供給回路と、不
活性ガスを備蓄する備蓄タンクと、ａｇタンクの不活性
ガスを給気タンクへ補給する不活性ガス補給回路とを備
えた可燃性粉体の圧送装置において、（ｆｉｔ蓄タンク
の不活性ガスをサイロへ供給する不活性ガス供給回路と
、給気タンク内の酸素濃度を検出する第１の０２センサ
と、サイロ内の酸素濃度を検出する第２の０２センサと
、＋ｉｔＪ記不活性ガス補ガス路を遮断する血訪習Ａシ
工妊碌〃）／ｌ）仏同孜ル漕イ＋１弁詰置Ｂと、ｆｊ
Ｓｌの０２センサの検出値をあらかじめ設定された値と
比較して弁装置Ａを開閉制御する手段と、第２の０２セ
ンサの検出値をあらかじめ設定された値と比較して弁装
置Ｂを開閉制御する手段とを備えている。(Measures for Solving the Problems) The present invention includes a pressure feeding circuit that forces combustible powder from a storage tank to a silo, an air supply tank that stores an inert gas mixture, and a supply air tank that stores an inert gas mixture. A mixture supply circuit equipped with a pressurizing device that supplies the mixture in the tank to the storage tank and the pressure feeding circuit, a storage tank that stores inert gas, and an inert gas tank that supplies inert gas from the ag tank to the air supply tank. In a combustible powder pumping device equipped with an active gas replenishment circuit, an inert gas supply circuit that supplies inert gas from a fit storage tank to a silo, and a first 02 sensor, a second 02 sensor that detects the oxygen concentration in the silo, and a blood visit A system that blocks the inert gas auxiliary gas path. Valve mounting B and fj
Means for controlling the opening and closing of the valve device A by comparing the detected value of the 02 sensor of Sl with a preset value, and means for opening and closing the valve device B by comparing the detected value of the second 02 sensor with the preset value. and control means.
（作用）
第１の０２センサの検出した給気タンク内の混合気の酸
素濃度が設定上限値を上回ると制御手段が弁装置Ａを開
いて［Ｆタンクの不活性ガスを給気タンクに流入させ、
これにより酸素濃度が設定下限値以下に低下すると制御
手段は弁装置Ａを閉じる。また、第２の０゜センサの検
出したサイロ内の酸素濃度が設定上限値を越えると制御
手段が弁装置Ｂを開いて備蓄タンクの不活性ガスをサイ
ロに供給し、これにより酸素濃度が設定下限値以下に低
下すると制御手段は弁装置Ｂを閉じる。(Function) When the oxygen concentration of the air-fuel mixture in the air supply tank detected by the first 02 sensor exceeds the set upper limit, the control means opens the valve device A to allow inert gas from the F tank to flow into the air supply tank. let me,
As a result, when the oxygen concentration falls below the set lower limit value, the control means closes the valve device A. Additionally, when the oxygen concentration in the silo detected by the second 0° sensor exceeds the set upper limit, the control means opens valve device B to supply inert gas from the storage tank to the silo, thereby setting the oxygen concentration. When the voltage falls below the lower limit, the control means closes the valve device B.
（実施例） 第１図に本発明の実施例を示す。(Example) FIG. 1 shows an embodiment of the present invention.
１は可燃性粉体の貯留タンク２を搭載した輸送車であり
、貯留タンク２はダンプシリンダ３に上り後傾可能に構
成されている。貯留タンク２の後部には圧送用チャンバ
２Ａが形成され、この圧送用チャンバ２Ａにサイロ５の
上部に連通する粉体の圧送管４の接続口２Ｂが設けらＫ
る。また、貯留タンク２、圧送用チャンバ２Ａ及び接続
口２Ｂに連通する継手２９に混合気供給管６が接続され
る。混合気供給管６のもう一端は不活性が大の混合気を
蓄えた給気タンク７に接続され、混合気供給ｇ６の途中
にブロワ８と加圧装置としてのコンプレッサ９が介装さ
れる。給気タンク７は不活性ガスを備蓄した備蓄タンク
１０に不活性ガス補給Ｗ１１を通じて接続し、この不活
性ガス補給管１１に弁装置ａＡが介装される。Reference numeral 1 denotes a transport vehicle equipped with a storage tank 2 for combustible powder, and the storage tank 2 is configured to be able to climb up onto a dump cylinder 3 and tilt backward. A pressure-feeding chamber 2A is formed at the rear of the storage tank 2, and a connection port 2B for a powder pressure-feeding pipe 4 communicating with the upper part of the silo 5 is provided in the pressure-feeding chamber 2A.
Ru. Further, the mixture supply pipe 6 is connected to a joint 29 that communicates with the storage tank 2, the pressure-feeding chamber 2A, and the connection port 2B. The other end of the mixture supply pipe 6 is connected to an air supply tank 7 storing a highly inert mixture, and a blower 8 and a compressor 9 as a pressurizing device are interposed in the middle of the mixture supply g6. The air supply tank 7 is connected to a storage tank 10 storing inert gas through an inert gas replenishment pipe W11, and a valve device aA is interposed in this inert gas replenishment pipe 11.
サイロ５の上端部には粉体と混合気とを分離するセパレ
ータ１２が設けられ、分離した混合気を給気タンク７に
回収する吸気管１３と備蓄タンク１０の不活性ガスをサ
イロ５に供給する不活性ガス供給管１４とがこのセパレ
ータ１２を介してサイロ５に接続する。なお、不活性ガ
ス供給管１４には弁装置Ｂが介装される。更に、サイロ
５の上端部に設けたバキュームブレーカ１５と備蓄タン
ク１０とを減圧弁１６を介したバキューム配管１７によ
り接続する。１８はサイロ５内の過大な圧力を大気中に
放出する安全弁、１９はサイロ５内に堆積した粉体を排
出する排出口である。また、２０は逆上弁、２１〜２５
は手動操作される開閉弁である。なお、弁装置ＡとＢは
それぞれ通電回路３０と３１からの通電により開閉する
。A separator 12 is provided at the upper end of the silo 5 to separate the powder from the mixture, and an intake pipe 13 collects the separated mixture into the air supply tank 7 and supplies inert gas from the storage tank 10 to the silo 5. An inert gas supply pipe 14 is connected to the silo 5 via the separator 12. Note that a valve device B is interposed in the inert gas supply pipe 14. Further, a vacuum breaker 15 provided at the upper end of the silo 5 and a storage tank 10 are connected by a vacuum pipe 17 via a pressure reducing valve 16. Reference numeral 18 represents a safety valve that releases excessive pressure within the silo 5 to the atmosphere, and reference numeral 19 represents an outlet that discharges the powder accumulated within the silo 5. In addition, 20 is a reverse valve, 21 to 25
is a manually operated on-off valve. Note that the valve devices A and B are opened and closed by energization from the energization circuits 30 and 31, respectively.
給気タンク７にはｆｊＳｌの０２センサ２６が、またサ
イロ５のセパレータ１２には第２の０２センサ２７が介
装される。これらの０２センサ２６と２７は弁装置Ａと
Ｂの制御手段であるモニタ２８に検出した給気タンク７
とサイロ５の酸素濃度をそれぞれ電流信号として入力す
る。一方、モニタ２８は信号入力されたｏ２センサ２６
の検出値をあらかじめ内部設定された数値範囲と比較し
、第１のＯ２センサ２６の検出値が設定上限値を上回る
と通電回路３０を介して弁装置Ａを開き、設定下限値を
下回ると開いていた弁ｇｃ置ＡｆｅｒＩＩじる。An fjSl 02 sensor 26 is installed in the air supply tank 7, and a second 02 sensor 27 is installed in the separator 12 of the silo 5. These 02 sensors 26 and 27 are connected to the air supply tank 7 detected by the monitor 28 which is a control means for the valve devices A and B.
and the oxygen concentration in the silo 5 are respectively input as current signals. On the other hand, the monitor 28 receives the signal from the O2 sensor 26.
The detected value of the first O2 sensor 26 is compared with a numerical range set internally in advance, and when the detected value of the first O2 sensor 26 exceeds the set upper limit value, the valve device A is opened via the energizing circuit 30, and when it falls below the set lower limit value, the valve device A is opened. The valve gc that was in use was set to AferII.
また、第２の０２センサ２７の検出値についても同様に
設定上下限値と比較し、通電回路３１を介して弁装置Ｂ
を開閉制御する。さらに、モニタ２８はこれらの検出値
を表示する表示装置を備える。Further, the detected value of the second 02 sensor 27 is similarly compared with the set upper and lower limit values, and the value is sent to the valve device B via the energizing circuit 31.
Control opening and closing. Furthermore, the monitor 28 includes a display device that displays these detected values.
次に作用を説明する。Next, the action will be explained.
粉体の貯留タンク２からサイロ５への圧送は圧送管４を
接続口２Ｂに、混合気供給管６を継手２つにそれぞれ接
続して１ｉｔ（閉弁２１〜２５を開き、グンプシリング
３を用いて貯留タンク２を後傾させた後に、ブロワ８並
びにコンプレッサ９を駆動しで行なう。ブロワ８が給気
タンク７からコンプレッサ９へ混合気を強制的に送り込
むため、コンプレッサ９は吸込ロスを発生させることな
く混合気を十分に加圧し、混合気供給管６を通じて圧送
チャンバ２Ａと貯留タンク２の内部及び接続口２Ｂに供
給する。この加圧混合気により貯留タンク２の粉体は圧
送管４を通じてサイロ５に圧送される。サイロ５に圧送
された粉体はセパレータ１２において混合気から分離し
てサイロ５に堆積し、゛ 混合気は吸気管１３から給
気タンク７に回収され、再び圧送用に使用される。To force feed the powder from the storage tank 2 to the silo 5, connect the pressure feed pipe 4 to the connection port 2B and the mixture supply pipe 6 to the two joints, respectively. This is done by tilting the storage tank 2 backwards and then driving the blower 8 and compressor 9. Since the blower 8 forcibly sends the air-fuel mixture from the supply air tank 7 to the compressor 9, the compressor 9 causes a suction loss. The mixture is sufficiently pressurized and supplied through the mixture supply pipe 6 to the inside of the pressure-feeding chamber 2A, the storage tank 2, and the connection port 2B.With this pressurized mixture, the powder in the storage tank 2 is transferred through the pressure-feeding pipe 4. The powder is pumped to the silo 5. The powder is separated from the air-fuel mixture by the separator 12 and deposited in the silo 5. used for.
こうして混合気は貯留タンク２とサイロ５との間を循環
しながら粉体を圧送するが、この間、０２センサ２６と
２７は給気タンク７内の酸素濃度とサイロ５内の酸素濃
度をそれぞれ検出してモニタ２８に入力し続け、モニタ
２８はこれらの検出値を表示装置に表示するとと６に設
定値と比較する。そして、第１の０２センサ２６の検出
した給気タンク７の酸素濃度が設定上限値を上回ると通
電回路３０を介して不活性ガス補給回路１１の弁装置Ａ
を開き、備蓄タンク１０の不活性ガスを給気タンク７に
供給する。これにより、混合気中の不活性ガスの濃度が
高まり、酸素濃度が低下するため、第１のＯ２センサ２
６の検出値も低下し、モニタ２８はこの検出値が設定下
限値を下回ったところで弁装置へを’Ｉ′！ｉじる。ま
た、モニタ２８は同様に第２の０２センサ２７の検出値
により通電回路３１を介して不活性ガス供給回路１４の
弁装置Ｂを開閉制御する。すなわち、サイロ５内の酸素
濃度が設定上限値を上回ると弁装置Ｂを開き、設定下限
値を下回ると弁装置Ｂを閉じるが、弁装ｒａＢが開（と
サイロ５へ直接備蓄タンク１０の不活性がスが供給され
るため、サイロ５の酸素濃度の抑制も迅速に行なわれる
。このようにして、貯留タンク２へ供給される圧送用混
合気とサイロ５内の酸素濃度は自動的に適正範囲にコン
トロールされるため、圧送装置のオペレータが頻繁にバ
ルブ操作を行なう必要はない。また、この制御状態はモ
ニタ２８の表示装置を通じていつでも確認でさる。In this way, the mixture circulates between the storage tank 2 and the silo 5 while pumping the powder. During this time, the 02 sensors 26 and 27 detect the oxygen concentration in the supply air tank 7 and the oxygen concentration in the silo 5, respectively. The detected values are continuously input to the monitor 28, and the monitor 28 displays these detected values on a display device and then compares them with the set values. When the oxygen concentration in the supply air tank 7 detected by the first 02 sensor 26 exceeds the set upper limit value, the valve device A of the inert gas replenishment circuit 11 is activated via the energization circuit 30.
is opened and the inert gas in the storage tank 10 is supplied to the air supply tank 7. As a result, the concentration of inert gas in the mixture increases and the oxygen concentration decreases, so the first O2 sensor 2
The detected value of 6 also decreases, and when this detected value falls below the set lower limit value, the monitor 28 sends an 'I' signal to the valve device. ijiru. Similarly, the monitor 28 controls the opening and closing of the valve device B of the inert gas supply circuit 14 via the energization circuit 31 based on the detected value of the second 02 sensor 27. That is, when the oxygen concentration in the silo 5 exceeds the set upper limit value, the valve device B is opened, and when it falls below the set lower limit value, the valve device B is closed. Since active gas is supplied, the oxygen concentration in the silo 5 is quickly suppressed.In this way, the pressure-feeding mixture supplied to the storage tank 2 and the oxygen concentration in the silo 5 are automatically adjusted to the appropriate level. Since the pressure is controlled within a certain range, the operator of the pumping device does not need to operate the valve frequently.Furthermore, the control status can be checked at any time through the display on the monitor 28.
なお、サイロ５に備えたバキュームブレーカ１５の作動
時には備蓄タンク１０がらバキューム配Ｗ１７を通じて
不活性ガスがサイロ５に流入する。Note that when the vacuum breaker 15 provided in the silo 5 is activated, inert gas flows into the silo 5 from the storage tank 10 through the vacuum pipe W17.
そのため、サイロ５の圧力低下時においても大気が流入
せず、サイロ５内の酸素濃度が上昇する恐れはない。Therefore, even when the pressure in the silo 5 decreases, the atmosphere does not flow in, and there is no fear that the oxygen concentration in the silo 5 will increase.
（発明の効果）
以上のように、本発明は給気タンク及びサイロに介装さ
れた０２センサの検出値に基づき、制御手段が弁装置を
開閉して給気タンク及びサイロに個別に不活性ガスを供
給するため、粉体を圧送する混合気の酸素濃度と圧送さ
れた粉体を堆積するサイロ内部の酸素ｉ良度がいずれも
自動的にコントロールされ、常に適正範囲に保たれる。(Effects of the Invention) As described above, the present invention allows the control means to open and close the valve device to individually inactivate the air supply tank and the silo based on the detected value of the 02 sensor installed in the air supply tank and the silo. In order to supply gas, the oxygen concentration of the air-fuel mixture that pumps the powder and the oxygen quality inside the silo where the pumped powder is deposited are both automatically controlled and always kept within appropriate ranges.
したがって、酸素濃度を１！４整するために繁雑なバル
ブ操作を行なう必要がなく、可燃性粉体の圧送作業が容
易になるとともに安全性も向上する。また、検出された
酸素濃度に基づいて不活性ガスが直接供給されるので不
活性ガスの消費量も最小限で済む。Therefore, there is no need to perform complicated valve operations to adjust the oxygen concentration by 1!4, and the operation of pumping the combustible powder becomes easier and safety is improved. Furthermore, since the inert gas is directly supplied based on the detected oxygen concentration, the amount of inert gas consumed can be minimized.
第１図は本発明の実施例を示す圧送装置の構成図、１２
図は不活性ガスを利用した圧送装置の従来例を示す構成
図である。
２・・・貯留タンク、４・・・圧送管、５・・・サイロ
、６・・・混合気供給管、７・・・給気タンク、９・・
・コンプレッサ、１０・・・備蓄タンク、１１・・・不
活性ガス補給管、１４・・・不活性が大供給管、２６・
・・ｆ：ＩＳｌの０２センサ、２７・・・第２の０２セ
ンサ、２８・・・モニタ Ａ 。
Ｂ・・・弁装置。FIG. 1 is a configuration diagram of a pressure feeding device showing an embodiment of the present invention, 12
The figure is a configuration diagram showing a conventional example of a pressure feeding device using inert gas. 2... Storage tank, 4... Pressure feed pipe, 5... Silo, 6... Mixture supply pipe, 7... Air supply tank, 9...
・Compressor, 10... Storage tank, 11... Inert gas supply pipe, 14... Large inert gas supply pipe, 26.
... f: ISl 02 sensor, 27... second 02 sensor, 28... monitor A. B... Valve device.
Claims (1)
と、不活性ガスの混合気を蓄えた給気タンクと、この給
気タンクの混合気を貯留タンク並びに圧送回路へ供給す
る加圧装置を介装した混合気供給回路と、不活性ガスを
備蓄する備蓄タンクと、備蓄タンクの不活性ガスを給気
タンクへ補給する不活性ガス補給回路とを備えた可燃性
粉体の圧送装置において、備蓄タンクの不活性ガスをサ
イロへ供給する不活性ガス供給回路と、給気タンク内の
酸素濃度を検出する第１のＯ＿２センサと、サイロ内の
酸素濃度を検出する第２のＯ＿２センサと、前記不活性
ガス補給回路を遮断する弁装置Ａと、不活性ガス供給回
路を遮断する弁装置Ｂと、第１のＯ＿２センサの検出値
をあらかじめ設定された値と比較して弁装置Ａを開閉制
御する手段と、第２のＯ＿２センサの検出値をあらかじ
め設定された値と比較して弁装置Ｂを開閉制御する手段
とを備えたことを特徴とする可燃性粉体の圧送装置。A pressure feeding circuit that forces combustible powder from a storage tank to a silo, an air supply tank that stores an inert gas mixture, and a pressurizing device that supplies the air mixture in this air supply tank to the storage tank and pressure feeding circuit. A combustible powder pumping device comprising an interposed mixture supply circuit, a storage tank for storing inert gas, and an inert gas replenishment circuit for replenishing the inert gas in the storage tank to the air supply tank, an inert gas supply circuit that supplies inert gas from the storage tank to the silo, a first O_2 sensor that detects the oxygen concentration in the supply air tank, and a second O_2 sensor that detects the oxygen concentration in the silo; A valve device A that shuts off the inert gas supply circuit, a valve device B that shuts off the inert gas supply circuit, and a valve device A that opens and closes by comparing the detected value of the first O_2 sensor with a preset value. A pumping device for combustible powder, comprising a control means and a means for controlling the opening and closing of a valve device B by comparing the detected value of the second O_2 sensor with a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22665386A JPH0825628B2 (en) | 1986-09-25 | 1986-09-25 | Combustible powder pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22665386A JPH0825628B2 (en) | 1986-09-25 | 1986-09-25 | Combustible powder pumping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6382223A true JPS6382223A (en) | 1988-04-13 |
| JPH0825628B2 JPH0825628B2 (en) | 1996-03-13 |
Family
ID=16848550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22665386A Expired - Lifetime JPH0825628B2 (en) | 1986-09-25 | 1986-09-25 | Combustible powder pumping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0825628B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06227661A (en) * | 1993-02-03 | 1994-08-16 | Nitta Gelatin Inc | Transport method of grained carbon black |
| CN106144607A (en) * | 2016-07-25 | 2016-11-23 | 信易电热机械有限公司 | A kind of low energy consumption material transfer pot |
| CN106144280A (en) * | 2016-07-25 | 2016-11-23 | 信易电热机械有限公司 | A kind of low speed material transfer pot |
| CN106742874A (en) * | 2016-12-16 | 2017-05-31 | 芜湖万向新元环保科技有限公司 | A kind of bucket |
| JP6393873B1 (en) * | 2017-09-05 | 2018-09-26 | 株式会社松浦機械製作所 | 3D modeling equipment |
-
1986
- 1986-09-25 JP JP22665386A patent/JPH0825628B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06227661A (en) * | 1993-02-03 | 1994-08-16 | Nitta Gelatin Inc | Transport method of grained carbon black |
| CN106144607A (en) * | 2016-07-25 | 2016-11-23 | 信易电热机械有限公司 | A kind of low energy consumption material transfer pot |
| CN106144280A (en) * | 2016-07-25 | 2016-11-23 | 信易电热机械有限公司 | A kind of low speed material transfer pot |
| CN106742874A (en) * | 2016-12-16 | 2017-05-31 | 芜湖万向新元环保科技有限公司 | A kind of bucket |
| JP6393873B1 (en) * | 2017-09-05 | 2018-09-26 | 株式会社松浦機械製作所 | 3D modeling equipment |
| JP2019044240A (en) * | 2017-09-05 | 2019-03-22 | 株式会社松浦機械製作所 | Three-dimensional molding device |
| US10525530B2 (en) | 2017-09-05 | 2020-01-07 | Matsuura Machinery Corp. | Three-dimensional shaping apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0825628B2 (en) | 1996-03-13 |
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