JP2015098709A - Powder storage facility - Google Patents

Powder storage facility Download PDF

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JP2015098709A
JP2015098709A JP2013238864A JP2013238864A JP2015098709A JP 2015098709 A JP2015098709 A JP 2015098709A JP 2013238864 A JP2013238864 A JP 2013238864A JP 2013238864 A JP2013238864 A JP 2013238864A JP 2015098709 A JP2015098709 A JP 2015098709A
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powder
storage facility
air
dust
powder storage
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JP6281255B2 (en
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将貴 末光
Masataka Suemitsu
将貴 末光
守 松岡
Mamoru Matsuoka
守 松岡
貴宏 亀川
Takahiro Kamegawa
貴宏 亀川
英人 久保
Eito Kubo
英人 久保
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Ube Corp
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Ube Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To solve a dust generation trouble caused by powder which is fixed to dust collection piping of a discharge chute of powder storage facilities.SOLUTION: An air amplifier is installed in dust collection piping of a discharge chute of powder storage facilities. Dry compressed air is supplied to the air amplifier at a speed close to a sound speed, and dust is collected by internally generating a strong vacuum by a Bernoulli effect. Thus, the fixation of powder into the dust collection piping is suppressed to prevent a dust generation trouble.

Description

本発明は粉体貯蔵設備に関するものであり、特に、粉体を収容する貯蔵設備と粉体重量を測定する計量器とが一体化された貯蔵設備に関するものである。   The present invention relates to a powder storage facility, and more particularly to a storage facility in which a storage facility for storing powder and a measuring instrument for measuring powder weight are integrated.

セメントは、通常、原料工程、クリンカ焼成工程および仕上げ工程を経て製造される。そのうち原料工程では、ゴミ焼却灰飛灰等塩素分の多い原料を調合、焼成してクリンカを生成している。また、焼成工程ではキルン内で循環する塩素を高濃度で抽出し、塩素バイパスダストとして処理し、キルン内のコーチングトラブルを回避している。   Cement is usually manufactured through a raw material process, a clinker firing process, and a finishing process. Among them, in the raw material process, raw materials with high chlorine content such as waste incineration ash fly ash are prepared and baked to produce clinker. In the firing process, chlorine circulating in the kiln is extracted at a high concentration and treated as chlorine bypass dust, thereby avoiding coaching troubles in the kiln.

従来より、塩素濃度の高いゴミ焼却灰飛灰や塩素バイパスダストを貯蔵設備から空気圧送もしくはまたはトラック等に積載して移送する際、貯蔵設備上部に集塵機を設置し、粉体搬出時、集塵配管を使用して空気を吸引し、発塵を防止している。しかし、長期間使用していると、粉体が空気中の湿分と反応し、集塵配管に固着し吸引能力が低下するのみならず、閉塞し発塵するという問題があった。   Conventionally, when dust incineration ash fly ash or chlorine bypass dust with high chlorine concentration is pneumatically transferred from a storage facility or loaded onto a truck, etc., a dust collector is installed at the top of the storage facility. Air is sucked using piping to prevent dust generation. However, when used for a long time, there is a problem that the powder reacts with moisture in the air and adheres to the dust collecting pipe to reduce the suction ability, and also clogs and generates dust.

そこで、従来の特許文献１にあっては、集塵配管に空気増幅器を設置し、エアードライヤで乾燥した圧縮空気を音速に近い速度で、空気増幅器に供給し、ベルヌイ効果で内部に強力な負圧を発生させ、粉体排出シュート部の空気を吸引することで、配管内に粉体が固着することを抑制し、発塵トラブルを低減するものである。   Therefore, in the conventional patent document 1, an air amplifier is installed in the dust collecting pipe, and compressed air dried by an air dryer is supplied to the air amplifier at a speed close to the speed of sound. By generating pressure and sucking the air in the powder discharge chute part, it is possible to suppress the powder from adhering to the inside of the pipe and reduce dust generation trouble.

特開２０００−８６３８号公報JP 2000-8638 A

従来、粉体貯蔵設備は貯蔵設備上部に集塵機を設置し、粉体出荷時空気を吸引して発塵を防止していた。しかしながら本設備を長期間使用していると、粉体（特に潮解性粉体）が空気中の湿分と反応して集塵配管に固着し閉塞する、という問題があった。また、最も固着トラブルが多発していた集塵配管吸引口はファンで空気を吸引され負圧に保たれているため、雨天時等空気中の相対湿度が高いとき、外気を吸引し粉体の固着トラブルが多発していた。
本発明はこの問題を解決するためになされたものであり、その目的とするところは、集塵配管への粉体の固着を抑制し、粉体貯蔵設備からの発塵を防止する点にある。 Conventionally, a powder storage facility has been installed with a dust collector at the top of the storage facility to prevent dust generation by sucking air when the powder is shipped. However, when this equipment is used for a long time, there has been a problem that powder (especially deliquescent powder) reacts with moisture in the air and adheres to and clogs the dust collecting pipe. In addition, the dust collection pipe suction port, where the most frequent sticking troubles occur, is kept at a negative pressure by sucking air with a fan, so when the relative humidity in the air is high, such as in rainy weather, the outside air is sucked into the powder. There were frequent sticking problems.
The present invention has been made to solve this problem, and an object of the present invention is to prevent powder from adhering to the dust collecting pipe and prevent dust generation from the powder storage facility. .

上記問題を解決するため、本発明では、上部に排気用の集塵機を有し、粉体を収容する貯蔵設備と、該貯蔵設備の下方に位置し、該貯蔵設備から排出された粉体の重量を測定する計量器と、粉体を収容して排出する排出シュートと、発塵を抑制するための集塵配管を具備することとした。   In order to solve the above problems, the present invention has a dust collector for exhaust at the top, a storage facility for storing powder, and a weight of the powder discharged from the storage facility, located below the storage facility. A measuring instrument, a discharge chute for storing and discharging powder, and a dust collecting pipe for suppressing dust generation.

本発明によれば、乾燥した圧縮空気を集塵配管へ押し込むことにより、配管内の湿度を下げる効果があり、更に湿度の高い外気の進入の抑制を可能にする。   According to the present invention, by pushing dry compressed air into a dust collection pipe, there is an effect of lowering the humidity in the pipe, and it is possible to suppress the entry of outside air with higher humidity.

また、圧縮空気を音速に近い速度で集塵配管壁面へ押し込んでおり、集塵配管壁面にエアーカーテンを形成することで、粉体が配管内部に固着することを抑制し、粉体貯蔵設備からの発塵を防止する。   In addition, compressed air is pushed into the wall surface of the dust collection pipe at a speed close to the speed of sound. By forming an air curtain on the wall surface of the dust collection pipe, the powder is prevented from sticking inside the pipe, Prevent dust generation.

本発明の一実施形態による粉体貯蔵設備の概略図である。It is the schematic of the powder storage equipment by one Embodiment of this invention. 本発明の一実施形態による空気増幅器の概略図である。1 is a schematic diagram of an air amplifier according to an embodiment of the present invention.

図１を参照すると、本発明の一実施形態による粉体貯蔵設備１０が示されている。   Referring to FIG. 1, a powder storage facility 10 according to one embodiment of the present invention is shown.

粉体貯蔵設備１０は、高塩素粉体を貯蔵しており、輸送機１１により計量器１２へ排出される。計量器１２で計量された粉体は、排出シュート１３を通り、圧送配管１５へ落下する。   The powder storage facility 10 stores high chlorine powder and is discharged to the measuring instrument 12 by the transport device 11. The powder measured by the measuring instrument 12 passes through the discharge chute 13 and falls into the pressure feeding pipe 15.

圧送配管１５には、ブロア１４が接続されており、ブロア１４から圧送された空気により、次工程へ粉体を移送される。粉体移送時、計量器１２から排出シュート１３へ落下すると、シュート内の圧力が高くなり、粉体を含む空気が粉体貯蔵設備の系外へ排出されるため、従来は集塵配管１６を設置し、集塵機１８を通してファン等で吸引して、発塵を防止していた。しかしながら、粉体（特に潮解性粉体）は空気中の水分と反応して集塵配管１６の配管内部へ固着して吸引力を低減するのみならず、配管が閉塞して発塵トラブルが多発していた。   A blower 14 is connected to the pressure feeding pipe 15, and the powder is transferred to the next process by the air pressure-fed from the blower 14. When powder is transferred to the discharge chute 13 from the meter 12, the pressure in the chute increases and air containing the powder is discharged out of the powder storage facility. It was installed and sucked with a fan or the like through the dust collector 18 to prevent dust generation. However, the powder (especially deliquescent powder) reacts with moisture in the air and adheres to the inside of the dust collection pipe 16 to reduce the suction force, and the pipe is closed and dust generation troubles occur frequently. Was.

本発明は、集塵配管１６へ空気増幅器１７を設置し、コンプレッサー２０から供給される圧縮空気中の水分をエアードライヤ１９で除去し、乾燥した圧縮空気を供給することで、粉体（特に潮解性粉体）が集塵配管１６の配管内部へ固着することを回避するものである。   In the present invention, the air amplifier 17 is installed in the dust collecting pipe 16, the moisture in the compressed air supplied from the compressor 20 is removed by the air dryer 19, and the dried compressed air is supplied. Is prevented from adhering to the inside of the dust collecting pipe 16.

図２を参照すると、本発明の一実施形態による空気増幅器１７が示されている。   Referring to FIG. 2, an air amplifier 17 according to one embodiment of the present invention is shown.

空気増幅器１７にエアードライヤ１９で乾燥した圧縮空気を複数のノズルから少量の圧縮空気を音速に近い速度で噴出されることにより、ベルヌイ効果で内部に強力な負圧が発生する。空気増幅器１７では、強力な負圧により粉体排出シュートから大量の空気１０２を誘導し、供給圧縮空気１０１とあいまって前方へ強力に送り出す特性を活かし、集塵配管１６内をブローする。この原理を利用して、集塵配管１６内にエアーカーテンを形成し、配管内へ粉体が固着することが防止できる。   When a small amount of compressed air dried by the air dryer 19 is ejected from the plurality of nozzles to the air amplifier 17 at a speed close to the sound speed, a strong negative pressure is generated inside by the Bernoulli effect. In the air amplifier 17, a large amount of air 102 is guided from the powder discharge chute by a strong negative pressure, and the inside of the dust collecting pipe 16 is blown utilizing the characteristic of being sent forward strongly together with the supplied compressed air 101. By utilizing this principle, it is possible to form an air curtain in the dust collection pipe 16 and prevent the powder from adhering to the pipe.

ここで、本発明において空気増幅器１７に供給する圧縮空気１００はエアードライヤ１９で乾燥した空気を使用することが重要である。   Here, in the present invention, it is important to use the air dried by the air dryer 19 as the compressed air 100 supplied to the air amplifier 17.

ここで、一般的な圧縮空気を導入すると多量の湿分が集塵配管内へ持ち込まれ、配管内へ粉体が固着する原因となり易い。   Here, when general compressed air is introduced, a large amount of moisture is brought into the dust collection pipe, which tends to cause powder to adhere to the pipe.

本発明では、エアードライヤ１９で乾燥した空気を使用することで、圧縮空気内の湿分を低減できるのみならず、音速に近い速度で噴出されることにより、ベルヌイ効果で内部に強力な負圧が発生させることで、粉体貯蔵設備系外から湿分の多い外気の流入も抑制できる効果が得られる。   In the present invention, not only the moisture in the compressed air can be reduced by using the air dried by the air dryer 19, but also a strong negative pressure is generated internally by the Bernoulli effect by being ejected at a speed close to the speed of sound. By generating, the effect that the inflow of the humid outside air from the outside of the powder storage system can be suppressed can be obtained.

更に、圧縮空気１００が音速に近い速度で噴出されることにより、配管内部の閉塞トラブルが皆無となる多大な効果を得ることができた。   Furthermore, since the compressed air 100 is ejected at a speed close to the speed of sound, it is possible to obtain a great effect that there is no blockage trouble inside the pipe.

１０ 粉体貯蔵設備
１１ 輸送機
１２ 計量器
１３ 粉体排出シュート
１４ ブロア
１５ 圧送配管
１６ 集塵配管
１７ 空気増幅器
１８ 集塵機
１９ エアードライヤ
２０ コンプレッサー
１００ 圧縮空気
１０１ 噴出する空気
１０２ 吸引される空気 DESCRIPTION OF SYMBOLS 10 Powder storage equipment 11 Transporter 12 Measuring instrument 13 Powder discharge chute 14 Blower 15 Pressure feed pipe 16 Dust collection pipe 17 Air amplifier 18 Dust collector 19 Air dryer 20 Compressor 100 Compressed air 101 Air to be sucked 102 Air to be sucked

Claims (3)

上部に排気用の集塵機を有し、粉体を収容する貯蔵設備と、
該貯蔵設備の下方に位置し、該貯蔵設備から排出された粉体の重量を測定する計量器と、
粉体を収容して排出する排出シュートと、
発塵を抑制するための集塵配管と
を具備することを特徴とする粉体貯蔵設備。 A storage facility that has a dust collector for exhaust at the top and contains powder;
A measuring instrument located below the storage facility for measuring the weight of the powder discharged from the storage facility;
A discharge chute for containing and discharging the powder;
A powder storage facility comprising a dust collection pipe for suppressing dust generation. 請求項１に記載の粉体貯蔵設備において、
前記粉体は、潮解性を有する粉体であること
を特徴とする粉体貯蔵設備。 The powder storage facility according to claim 1,
The powder storage facility, wherein the powder is a deliquescent powder. 請求項２に記載の粉体貯蔵設備において、
前記集塵配管に、空気増幅器を設置し、
エアードライヤで乾燥した圧縮空気を空気増幅器に供給することで、系内を負圧に保持すること
を特徴とする粉体貯蔵設備。 The powder storage facility according to claim 2,
An air amplifier is installed in the dust collection pipe,
A powder storage facility characterized in that the inside of the system is maintained at a negative pressure by supplying compressed air dried by an air dryer to an air amplifier.
JP2013238864A 2013-11-19 2013-11-19 Powder storage equipment Active JP6281255B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105819133A (en) * 2016-05-16 2016-08-03 中国能源建设集团广东省电力设计研究院有限公司 Square coal storage bunker
KR101803157B1 (en) 2015-12-18 2017-12-01 최용석 loading system of particulate material cargo in bulk vehicle
CN112278342A (en) * 2020-11-19 2021-01-29 安徽省天麒面业科技股份有限公司 Dustless packagine machine is used in flour production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449339A (en) * 1981-10-05 1984-05-22 Parkersburg Tank, Division Of Maloney Crawford Corporation Side-wall discharge system
JPH0738044U (en) * 1993-11-08 1995-07-14 哲三 蓮尾 Granule storage and discharge device
JPH0956253A (en) * 1995-08-18 1997-03-04 Nakajima Kagaku Kogyo Kk Silo
JP2000008638A (en) * 1998-06-26 2000-01-11 Kumakura Kogyo Kk Metering and transporting vertical transferable silo
JP2002179250A (en) * 2000-12-13 2002-06-26 Fujisash Co Reserving method and reserving device of fly ash

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449339A (en) * 1981-10-05 1984-05-22 Parkersburg Tank, Division Of Maloney Crawford Corporation Side-wall discharge system
JPH0738044U (en) * 1993-11-08 1995-07-14 哲三 蓮尾 Granule storage and discharge device
JPH0956253A (en) * 1995-08-18 1997-03-04 Nakajima Kagaku Kogyo Kk Silo
JP2000008638A (en) * 1998-06-26 2000-01-11 Kumakura Kogyo Kk Metering and transporting vertical transferable silo
JP2002179250A (en) * 2000-12-13 2002-06-26 Fujisash Co Reserving method and reserving device of fly ash

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101803157B1 (en) 2015-12-18 2017-12-01 최용석 loading system of particulate material cargo in bulk vehicle
CN105819133A (en) * 2016-05-16 2016-08-03 中国能源建设集团广东省电力设计研究院有限公司 Square coal storage bunker
CN112278342A (en) * 2020-11-19 2021-01-29 安徽省天麒面业科技股份有限公司 Dustless packagine machine is used in flour production
CN112278342B (en) * 2020-11-19 2022-03-04 安徽省天麒面业科技股份有限公司 Dustless packagine machine is used in flour production

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