CN1072175C - 往输送管道输送松散材料的设备的控制方法 - Google Patents
往输送管道输送松散材料的设备的控制方法 Download PDFInfo
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- CN1072175C CN1072175C CN97191200A CN97191200A CN1072175C CN 1072175 C CN1072175 C CN 1072175C CN 97191200 A CN97191200 A CN 97191200A CN 97191200 A CN97191200 A CN 97191200A CN 1072175 C CN1072175 C CN 1072175C
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title abstract 3
- 238000009795 derivation Methods 0.000 claims 1
- 238000004904 shortening Methods 0.000 claims 1
- 230000011664 signaling Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
- B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
- B65G53/12—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow acting directly on the materials in a reservoir
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
- Control Of Conveyors (AREA)
- Basic Packing Technique (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
在一种从至少一个料罐往输送管道输送粉末状或者细粒状松散材料的设备的控制方法中,为了吸出松散材料,对料罐同时施加压力和排空,以及卸压后又装满松散材料。继续确定料罐最大可能装料程度时的设备特有的最佳的松散材料输送量,以及由所测定的重要输送参数,如输送周期内的压力和输送时间,确定料罐排空时卸出的松散材料数量。根据松散材料的卸出数量与最佳输送数量的比较,当最近一个或者前一个输送周期内的松散材料卸出数量与最佳输送数量发生偏差时,更改(延长/缩短)输送周期之间的间歇时间。
Description
本发明涉及一种从至少一个料罐往共用的输送管道输送粉末状的或者细粒状松散材料的设备控制方法,在输送时,在排出松散材料的同时对料罐加压和排空,卸压后又装入松散材料。
众所周知,这类气动的输送设备有不同的实施形式,例如由US5494381已知一种料罐。在松散材料产量不均匀时和依赖于料罐加料位的输送开始时间不规律时进行料罐间歇式装料,会出现停机时间,降低设备的输送效率。这样使平均输送效率大大低于设备的可能输送能力。特别是允许输送开始的料罐料位信号装置是易受干扰的元件。
已公开的用于细粒状或者粉末状松散材料的气动输送设备也有不装料位信号装置的。这种设备与当时的松散材料产量无关,按规定的时间次序开始输送。因为这种设备不在最佳工作点运行,能量消耗很大,所以这种操作方法是不经济的。
现在本发明的任务是,不仅要消除气动输送设备的易受干扰性,而且要降低其能量消耗。
按照本发明,这个任务是这么来解决的,按料罐最大可能的装料程度确定设备特有的最佳散料输送量,由测定的重要的输送参数,即输送周期内的最小压力和输送时间,计算料罐排空时所排出的松散材料数量,并与最佳输送量进行比较,当与最佳输送量发生偏差时按规定的时间间隔更改输送周期之间的间歇时间。
按照本发明的由一个加压的料罐往输送管道输送粉末状或者细粒状松散材料的设备的控制方法,由输送技术数据计算最近一个输送周期或者前一个输送周期内的松散材料输送量,并与在最佳条件下采用设备输送的数量进行比较。本发明通过按最佳规定的或者计算的时间间隔来改变(缩短或延长)前后相随的输送周期之间的间歇时间,以简单的方法确保,在一个输送周期到来之前,料罐最大限度地装满,因此不仅保证设备在最佳条件下运行,而且也避免在设备运行时受机械触发输送开始的元件如料位信号装置的干扰。
依照本发明的方法还将在下面参照附图用一个实施例加以说明,附图所示为一台气动输送设备的示意剖面图。
图1以简化的表示方式示出一台从三个料罐1向一条共用的气动输送管道2输送粉末状或者细粒状松散材料的设备实例。料罐1直接通向由一个阀门3与压缩气体源(未示出)相连接的输送管道2。通过阀门3与压缩气源连接的还有一根空气管道4,支管5和6从空气管道上分支接到料罐1。
在每一个料罐1上还另外各自接上一根与装料容器的输出口8相连接的松散材料输入管道7。在松散材料输入管道7上安装一个闭锁机构(未示出),当料罐1装料时闭锁机构打开,当向输送管道2输送松散材料时闭锁机构关闭。
为了把料罐内已有的松散材料同时输送到输送管道2,打开阀门3并同时关闭松散材料输入管道7上的闭锁机构,既往空气管道4内,包括支管道5和6,也往输送管道2内供应输送介质,例如压缩空气。松散材料同时从全部料罐1到达输送管道2后得以运走。料罐1排空后,通过对阀门3和松散材料输入管道7上的闭锁机构进行开关转移,料罐1又重新装满松散材料,接着又以所述的方法排空。依照本发明,各输送周期(料罐1排空)之间的间歇时间长短通过最近一个输送周期内或者前一个输送周期内输送的松散材料数量与在最佳条件下设备输送的数量进行比较而计算出来,输送周期内输送的松散材料数量由输送技术数据(输送周期内的压力;输送时间;松散材料的比重和温度;输送介质的输送线路、物料流量、温度、局部密度以及比摩擦系数)来确定。
Claims (3)
1.一种从至少一个料罐往输送管道输送粉末状或者细粒状松散材料的设备的控制方法,采用这种方法时,为了吸出松散材料,对料罐同时施加压力和排空,以及卸压后又装满松散材料,其特征在于下述步骤:
a)确定在料罐1最大可能的装料程度时的设备特有的最佳的松散材料输送量;
b)由所测定的重要输送参数,即在输送周期内的最低限度压力和输送时间,确定料罐排空时卸出的松散材料的数量;
c)松散材料卸出数量与松散材料最佳输送数量进行比较;
d)当最近一个或者前一个输送周期内松散材料卸出数量与其最佳的输送数量发生偏差时,更改(延长/缩短)输送周期之间的间歇时间。
2.如权利要求1所述的方法,其特征在于,间歇时间按规定的时间间隔进行更改。
3.如权利要求1所述的方法,其特征在于,按由松散材料卸出数量与最佳输送数量进行比较导出的时间间隔更改间歇时间。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29615505.5 | 1996-09-05 | ||
DE29615505 | 1996-09-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1200098A CN1200098A (zh) | 1998-11-25 |
CN1072175C true CN1072175C (zh) | 2001-10-03 |
Family
ID=8028864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97191200A Expired - Lifetime CN1072175C (zh) | 1996-09-05 | 1997-09-05 | 往输送管道输送松散材料的设备的控制方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6085939A (zh) |
EP (1) | EP0865397B1 (zh) |
CN (1) | CN1072175C (zh) |
AT (1) | ATE210587T1 (zh) |
CZ (1) | CZ291088B6 (zh) |
DE (1) | DE59705767D1 (zh) |
HU (1) | HUP9901987A3 (zh) |
PL (1) | PL183925B1 (zh) |
UA (1) | UA55397C2 (zh) |
WO (1) | WO1998009897A1 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH692854A5 (de) * | 1997-11-21 | 2002-11-29 | Gericke Ag | Verfahren zum Betrieb einer Pfropfenförderanlage sowie Pfropfenförderanlage zur Durchführung des Verfahrens. |
GB9913909D0 (en) * | 1999-06-16 | 1999-08-18 | Clyde Pneumatic Conveying Limi | Pneumatic conveying |
BRPI0709999A2 (pt) * | 2006-04-05 | 2011-08-02 | Baker Hughes Inc | sistema de transferência de fragmentos de rocha de perfuração e métodos relacionados |
US8113745B2 (en) * | 2006-05-31 | 2012-02-14 | Sintokogio, Ltd. | Pressure tank, an device for feeding powder to a conveying pipe, and its feeding method, and method for determining feeding intervals of powder to the conveying pipe |
EP2313660B1 (en) * | 2008-06-04 | 2017-01-04 | Pentair Flow Control Pacific Pty Limited | Pneumatic evacuation pump |
CN102874599A (zh) * | 2012-09-25 | 2013-01-16 | 上海发电设备成套设计研究院 | 一种正压密相仓泵空载运行的判定方法 |
CN103950730B (zh) * | 2014-03-19 | 2016-05-25 | 内蒙古电力勘测设计院有限责任公司 | 火电厂气力输灰系统的节能控制方法 |
CN114592217A (zh) * | 2020-12-03 | 2022-06-07 | 国家电投集团黄河上游水电开发有限责任公司 | 一种降低铝电解槽氧化铝料箱死料位的装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494381A (en) * | 1991-04-11 | 1996-02-27 | The Young Industries, Inc. | Apparatus and method for pneumatically conveying bulk materials |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6801762U (de) * | 1967-10-16 | 1970-10-15 | Heinz H Co Ltd | Vorrichtung zur aufnahme und abgabe von fliessfaehigem material |
DE2248859B2 (de) * | 1972-10-05 | 1975-10-23 | Claudius Peters Ag, 2000 Hamburg | Verfahren und Vorrichtung zum pneumatischen Fördern von staubförmigem oder körnigem Schüttgut |
DE2925510A1 (de) * | 1979-06-25 | 1981-01-15 | Schenck Ag Carl | Verfahren und vorrichtung zur messung der foerderstaerke in einer pneumatischen foerderanlage |
US4613259A (en) * | 1984-11-28 | 1986-09-23 | United Technologies Corporation | Apparatus for controlling powder flow rate in a carrier gas |
US4775267A (en) * | 1987-02-12 | 1988-10-04 | Nisso Engineering Co., Ltd. | Pneumatic conveyor for powder |
US4863316A (en) * | 1987-07-01 | 1989-09-05 | The Perkin-Elmer Corporation | Closed loop powder flow regulator |
-
1997
- 1997-05-09 UA UA98052264A patent/UA55397C2/uk unknown
- 1997-09-05 WO PCT/EP1997/004830 patent/WO1998009897A1/de active IP Right Grant
- 1997-09-05 PL PL97326760A patent/PL183925B1/pl unknown
- 1997-09-05 EP EP97944834A patent/EP0865397B1/de not_active Expired - Lifetime
- 1997-09-05 AT AT97944834T patent/ATE210587T1/de not_active IP Right Cessation
- 1997-09-05 US US09/068,323 patent/US6085939A/en not_active Expired - Lifetime
- 1997-09-05 HU HU9901987A patent/HUP9901987A3/hu unknown
- 1997-09-05 DE DE59705767T patent/DE59705767D1/de not_active Expired - Lifetime
- 1997-09-05 CN CN97191200A patent/CN1072175C/zh not_active Expired - Lifetime
- 1997-09-05 CZ CZ19981354A patent/CZ291088B6/cs not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5494381A (en) * | 1991-04-11 | 1996-02-27 | The Young Industries, Inc. | Apparatus and method for pneumatically conveying bulk materials |
Also Published As
Publication number | Publication date |
---|---|
HUP9901987A2 (hu) | 1999-10-28 |
US6085939A (en) | 2000-07-11 |
EP0865397B1 (de) | 2001-12-12 |
UA55397C2 (uk) | 2003-04-15 |
PL326760A1 (en) | 1998-10-26 |
HUP9901987A3 (en) | 2002-03-28 |
ATE210587T1 (de) | 2001-12-15 |
CZ291088B6 (cs) | 2002-12-11 |
CZ135498A3 (cs) | 1999-01-13 |
WO1998009897A1 (de) | 1998-03-12 |
CN1200098A (zh) | 1998-11-25 |
EP0865397A1 (de) | 1998-09-23 |
DE59705767D1 (de) | 2002-01-24 |
PL183925B1 (pl) | 2002-08-30 |
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