WO2010127771A1 - Device for transporting bulk materials - Google Patents

Device for transporting bulk materials Download PDF

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Publication number
WO2010127771A1
WO2010127771A1 PCT/EP2010/002468 EP2010002468W WO2010127771A1 WO 2010127771 A1 WO2010127771 A1 WO 2010127771A1 EP 2010002468 W EP2010002468 W EP 2010002468W WO 2010127771 A1 WO2010127771 A1 WO 2010127771A1
Authority
WO
WIPO (PCT)
Prior art keywords
conveying chute
main channel
conveying
gas outlet
chute
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.)
Ceased
Application number
PCT/EP2010/002468
Other languages
French (fr)
Inventor
Michael Missalla
Cornelis Klett
Bernd Reeb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metso Corp
Original Assignee
Outotec Oyj
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Outotec Oyj filed Critical Outotec Oyj
Priority to BRPI1014804A priority Critical patent/BRPI1014804B8/en
Priority to EA201190278A priority patent/EA019948B1/en
Priority to AU2010244789A priority patent/AU2010244789B2/en
Priority to UAA201112270A priority patent/UA101559C2/en
Publication of WO2010127771A1 publication Critical patent/WO2010127771A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials

Definitions

  • This invention relates to a device for transporting bulk materials, with a conveying chute having at least one tubular conveying chute portion, in which fluidizing gas can be introduced into the lower region of the tube cross-section via at least one main channel or main channel portion extending in longitudinal direction of the conveying chute or conveying chute portion and via gas outlet channels branching off from the same at intervals.
  • Such devices serve for pneumatically transporting powdery bulk materials, such as dry aluminium hydrate, from an electrostatic precipitator to an airlift inside a calcining plant or for transporting alumina to a silo.
  • powdery bulk materials such as dry aluminium hydrate
  • Such devices can, however, also be used for transporting any other bulk material.
  • Classical fluidizing conveying chutes are characterized for example by an inclined rectangular housing channel which in its lower region is provided with a fluidizing base.
  • the fluidizing base generally consists of a porous material in the form of a fine cloth or a more stable sintered metal membrane through which the fluidizing gas can flow, but the solids cannot fall through the same.
  • the cloth can easily tear, wear and clog in the course of time.
  • Sintered metal membranes often are obstructed in the course of time by extremely fine particles accumulating in the pores of the sintered metal. Both render it necessary to regularly replace the fluidizing base.
  • a device for fluidizing and transporting fine-grained, powdery or short-fibered materials inside a hose, tube or container is known, to which fluidizing gas is supplied via a main channel extending in longitudinal direction of the hose, tube or container and a plurality of throttle connecting channels arranged in series.
  • the main channel and the throttle channels are arranged inside a gas distribution profile element provided on the inside of the hose, tube or container wall and via intermediate chambers are connected with the interior of the hose, tube or container via a multitude of gas outlet channels arranged one beside the other in the gas distribution profile element in longitudinal direction.
  • This device for pneumatically conveying a flowable material in a dense flow includes a conveying conduit of closed cross-section with a conveying channel, a compressed gas secondary conduit with a compressed gas channel and compressed gas transmitting means for feeding the conveying channel with a compressed gas from the compressed gas channel.
  • a fluidizing means is associated, which includes a fluidizing channel with fluidizing gas transmitting means for feeding a fluidizing gas from the fluidizing gas channel into the conveying channel.
  • the fluidizing body and the tubular fluidizing gas channel likewise are accommodated inside the conveying conduit of closed cross- section with the same problem of a lack of accessibility for maintenance and/or repair work.
  • the at least one main channel or main channel portion extends outside the conveying chute or the respective conveying chute portion, and at least at their gas outlet ends the gas outlet channels are formed as nozzle tubes branching off from the main channel or the respective main channel portion and directed downwards at an angle from the side through the tube wall of the conveying chute or the respective conveying chute portion.
  • the conveying chute for example is composed of conventional round tube portions which can be connected by means of usual end-face flange connections. Leakages at flange connections extending along the entire length of the conveying chute thereby are prevented.
  • tube nozzles can be used, which are introduced into the conveying chute obliquely from the side, wherein their gas outlet ends are directed downwards at an angle, so that solids which have entered can easily flow out of the same.
  • the fluidizing nozzles are supplied with air via a main channel, preferably one on each side per conveying chute portion.
  • the fluidizing nozzles can e.g. independently be provided with adjustable flow resistors.
  • the amount of fluidizing gas is smaller in the tubular conveying chute than in a rectangular conveying chute. Since the conveying chute largely is closed, it is also suitable for operation at positive pressure. Since a fluidizing base no longer is required, the invented transporting device is insensitive to mechanical influences, so that a grid can be omitted at the bulk material inlet. There is no sensitivity to moisture either. Furthermore, an essential advantage in particular consists in that the entire fluidizing gas supply system is easily accessible, so that an easy accessibility for maintenance and repair work is ensured in the case of malfunctions such as clogging of the nozzles. Cleaning by means of water also is easily possible.
  • At least one separate main channel portion is associated to each conveying chute portion, which can separately be supplied with fluidizing gas.
  • the at least one main channel or the at least one main channel portions can be attached to the outside of the tube wall of the conveying chute.
  • the positioning of the nozzle tubes is provided for example at intervals of about 100 to 400 mm, preferably about 150 to 250 mm.
  • an inclination of the conveying chute or conveying chute portions can be utilized.
  • the inclination of the conveying chute for example is about 1 to 20°, preferably about 5 to 15°.
  • the conveying chute also for bulk material with an elevated tempera- ture of up to 1200 0 C, it preferably is supported by a steel structure and/or a brick lining.
  • adjoining conveying chute portions are sealingly connected with each other via end-face flanges.
  • the nozzle tubes also can be provided for example with cleaning and/or poking holes accessible from outside the conveying chute.
  • the device for transporting bulk materials which is schematically shown in the drawing, includes a conveying chute 1 which is formed of individual tubular conveying chute portions 2.
  • a conveying chute 1 which is formed of individual tubular conveying chute portions 2.
  • a main channel portion 1 1 of a main channel 3 with fluidizing gas supply ports 10 is associated, and preferably two such main channel portions 1 1 each in the upper region of the respective conveying chute portion 2 symmetrical to the vertical longitudinal median plane of the conveying chute 1. Only the front main channel portion 11 each is shown in the drawing.
  • the one conveying chute portion 2 is represented with a bulk material supply port 9.
  • Gas outlet channels 4 branch off at intervals from the main channel 3 or the respective main channel portions 11 , through which fluidizing gas can be introduced into the lower region of the tube cross-section.
  • the main channel 3 extends or the main channel portions 1 1 each extend outside the conveying chute 1 or the respective conveying chute portion 2, on which the respective main channel 3 or the respective main channel portions 11 can be mounted.
  • the gas outlet channels 4 each constitute nozzle tubes 6 directed downwards at an angle from the side through the tube wall 5 at their gas inlet end in the lower region of the conveying chute 1.
  • the individual gas outlet channels 4 can be provided with preferably individually ad- justable flow resistors 7.
  • the positioning of the nozzle tubes 6 is provided for example at intervals of about 100 to 400 mm, preferably about 150 to 250 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chutes (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)

Abstract

A device for transporting bulk materials comprises a conveying chute (1) having at least one tubular conveying chute portion (2), in which fluidizing gas can be introduced into the lower region of the tube cross-section via at least one main channel (3) or main channel portion (11) extending in longitudinal direction of the conveying chute (1) and via gas outlet channels (4) branching off from the same at intervals. The at least one main channel (3) or main channel portion (11) extends outside the conveying chute (1) or the respective conveying chute portion (2). At least at their gas outlet end, the gas outlet channels (4) are formed as nozzle tubes (6) branching off from the main channel (3) or the respective main channel portion (11) and directed downwards at an angle from the side through the tube wall (5) of the conveying chute (1) or the respective conveying chute portion (2).

Description

Device for Transporting Bulk Materials
This invention relates to a device for transporting bulk materials, with a conveying chute having at least one tubular conveying chute portion, in which fluidizing gas can be introduced into the lower region of the tube cross-section via at least one main channel or main channel portion extending in longitudinal direction of the conveying chute or conveying chute portion and via gas outlet channels branching off from the same at intervals.
Such devices for example serve for pneumatically transporting powdery bulk materials, such as dry aluminium hydrate, from an electrostatic precipitator to an airlift inside a calcining plant or for transporting alumina to a silo. Such devices can, however, also be used for transporting any other bulk material.
Classical fluidizing conveying chutes are characterized for example by an inclined rectangular housing channel which in its lower region is provided with a fluidizing base. When the bulk material is fluidized via the fluidizing base, it behaves like a liquid and flows in the direction of the slope. The fluidizing base generally consists of a porous material in the form of a fine cloth or a more stable sintered metal membrane through which the fluidizing gas can flow, but the solids cannot fall through the same. The cloth, however, can easily tear, wear and clog in the course of time. Sintered metal membranes often are obstructed in the course of time by extremely fine particles accumulating in the pores of the sintered metal. Both render it necessary to regularly replace the fluidizing base. In the case of moist bulk material, the same can even block immediately by "cementing", which requires a replacement of the fluidizing base. When introducing sharp-edged objects into the stream of bulk material, e.g. during maintenance work, the fluidizing base can also be damaged. Therefore, a grid is required at the bulk material inlet of conventional fluidizing conveying chutes. When objects are accumulated on the grid, the same must be cleaned from time to time. A further disadvantage of conven- tional fluidizing conveying chutes with rectangular housing channel consists in the risk of leakages of the flange connections extending in longitudinal direction of the channel. From DE 197 09 425 C1 a device for fluidizing and transporting fine-grained, powdery or short-fibered materials inside a hose, tube or container is known, to which fluidizing gas is supplied via a main channel extending in longitudinal direction of the hose, tube or container and a plurality of throttle connecting channels arranged in series. The main channel and the throttle channels are arranged inside a gas distribution profile element provided on the inside of the hose, tube or container wall and via intermediate chambers are connected with the interior of the hose, tube or container via a multitude of gas outlet channels arranged one beside the other in the gas distribution profile element in longitudinal direction. In this way, only part of the above described disadvantages are eliminated. In addition, the problem exists that the throttle connecting channels, intermediate chambers and gas outlet channels arranged inside the hose, tube or container are hardly accessible in the case of maintenance and e.g. neither permit a regulation of the fluidizing gas along the length of the conveying chutes.
Similar disadvantages exist in a device for pneumatically conveying bulk materials in a dense flow, which is known from EP 1 623 941 A1. This device for pneumatically conveying a flowable material in a dense flow includes a conveying conduit of closed cross-section with a conveying channel, a compressed gas secondary conduit with a compressed gas channel and compressed gas transmitting means for feeding the conveying channel with a compressed gas from the compressed gas channel. To the conveying channel a fluidizing means is associated, which includes a fluidizing channel with fluidizing gas transmitting means for feeding a fluidizing gas from the fluidizing gas channel into the conveying channel. The fluidizing body and the tubular fluidizing gas channel likewise are accommodated inside the conveying conduit of closed cross- section with the same problem of a lack of accessibility for maintenance and/or repair work.
It is the object of the present invention to create a device for transporting bulk materials, in which the above-described disadvantages do not occur and in particular an easy accessibility and controllability of the fluidizing means is provided.
For the solution of this object, it is in particular provided in a transporting device in accordance with the invention with the features of claim 1 that the at least one main channel or main channel portion extends outside the conveying chute or the respective conveying chute portion, and at least at their gas outlet ends the gas outlet channels are formed as nozzle tubes branching off from the main channel or the respective main channel portion and directed downwards at an angle from the side through the tube wall of the conveying chute or the respective conveying chute portion.
Thus, the conveying chute for example is composed of conventional round tube portions which can be connected by means of usual end-face flange connections. Leakages at flange connections extending along the entire length of the conveying chute thereby are prevented. For fluidization, tube nozzles can be used, which are introduced into the conveying chute obliquely from the side, wherein their gas outlet ends are directed downwards at an angle, so that solids which have entered can easily flow out of the same. The fluidizing nozzles are supplied with air via a main channel, preferably one on each side per conveying chute portion. To achieve a uniform distribution of the air in the conveying chute, the fluidizing nozzles can e.g. independently be provided with adjustable flow resistors. Due to the round cross-section, the amount of fluidizing gas is smaller in the tubular conveying chute than in a rectangular conveying chute. Since the conveying chute largely is closed, it is also suitable for operation at positive pressure. Since a fluidizing base no longer is required, the invented transporting device is insensitive to mechanical influences, so that a grid can be omitted at the bulk material inlet. There is no sensitivity to moisture either. Furthermore, an essential advantage in particular consists in that the entire fluidizing gas supply system is easily accessible, so that an easy accessibility for maintenance and repair work is ensured in the case of malfunctions such as clogging of the nozzles. Cleaning by means of water also is easily possible.
In the sub-claims, particular features of the novel transporting device are identified in detail.
In a particular aspect of the invention, at least one separate main channel portion is associated to each conveying chute portion, which can separately be supplied with fluidizing gas. - A -
If two main channels or main channel portions are symmetrical to the vertical longitudinal median plane of the conveying chute or conveying chute portion in the upper region thereof, a uniform supply of fluidizing gas can be achieved in a simple way.
By means of the flow resistors, undesired non-uniformities of the supply of fluidizing gas into the conveying chute can be compensated.
For simplicity and for space saving reasons, the at least one main channel or the at least one main channel portions can be attached to the outside of the tube wall of the conveying chute.
In practical operation, the positioning of the nozzle tubes is provided for example at intervals of about 100 to 400 mm, preferably about 150 to 250 mm.
For properly conveying the bulk material, an inclination of the conveying chute or conveying chute portions can be utilized. The inclination of the conveying chute for example is about 1 to 20°, preferably about 5 to 15°.
To be able to use the conveying chute also for bulk material with an elevated tempera- ture of up to 1200 0C, it preferably is supported by a steel structure and/or a brick lining.
For assembly, adjoining conveying chute portions are sealingly connected with each other via end-face flanges.
Due to the good accessibilities of the gas fluidizing system, the nozzle tubes also can be provided for example with cleaning and/or poking holes accessible from outside the conveying chute.
Further developments, advantages and possible applications can be taken from the following description of an embodiment and the drawing. All features described and/or illustrated form the subject-matter of the invention per se or in any combination, independent of their inclusion in individual claims or their back-reference. The only Figure illustrates a part of a transporting device including the invention in an oblique view.
The device for transporting bulk materials, which is schematically shown in the drawing, includes a conveying chute 1 which is formed of individual tubular conveying chute portions 2. To each conveying chute portion 2 a main channel portion 1 1 of a main channel 3 with fluidizing gas supply ports 10 is associated, and preferably two such main channel portions 1 1 each in the upper region of the respective conveying chute portion 2 symmetrical to the vertical longitudinal median plane of the conveying chute 1. Only the front main channel portion 11 each is shown in the drawing. The one conveying chute portion 2 is represented with a bulk material supply port 9. Gas outlet channels 4 branch off at intervals from the main channel 3 or the respective main channel portions 11 , through which fluidizing gas can be introduced into the lower region of the tube cross-section.
The main channel 3 extends or the main channel portions 1 1 each extend outside the conveying chute 1 or the respective conveying chute portion 2, on which the respective main channel 3 or the respective main channel portions 11 can be mounted. In any case, the gas outlet channels 4 each constitute nozzle tubes 6 directed downwards at an angle from the side through the tube wall 5 at their gas inlet end in the lower region of the conveying chute 1.
The individual gas outlet channels 4 can be provided with preferably individually ad- justable flow resistors 7.
The positioning of the nozzle tubes 6 is provided for example at intervals of about 100 to 400 mm, preferably about 150 to 250 mm.
Cleaning and/or poking holes at the nozzle tubes 6 are not shown in the drawing. List of reference numerals:
1 conveying chute
2 conveying chute portions
3 main channel
4 gas outlet channels
5 tube wall
6 nozzle tubes
7 flow resistors
8 flanges
9 bulk material supply port
10 fluidizing gas supply port
11 main channel portions

Claims

Claims:
1. A device for transporting bulk materials, with a conveying chute (1 ) having at least one tubular conveying chute portion (2), in which fluidizing gas can be introduced into the lower region of the tube cross-section via at least one main channel (3) or main channel portion (11 ) extending in longitudinal direction of the conveying chute (1 ) and via gas outlet channels (4) branching off from the same at intervals, characterized in that the at least one main channel (3) or main channel portion (11 ) extends outside the conveying chute (1 ) or the respective conveying chute portion (2) and at least at their gas outlet ends the gas outlet channels (4) are formed as nozzle tubes (6) branching off from the main channel (3) or the respective main channel portion (11 ) and directed downwards at an angle from the side through the tube wall (5) of the conveying chute (1 ) or the respective conveying chute portion (2).
2. The device according to claim 1 , characterized in that to each conveying chute portion (2) a separate main channel portion (11 ) is associated, which can separately be supplied with fluidizing gas.
3. The device according to claim 1 or 2, characterized in that two main channels (3) or main channel portions (11 ) are arranged symmetrical to the vertical longitudinal median plane of the conveying chute (1 ) in the upper region of the conveying chute (1 ).
4. The device according to any one of the preceding claims, characterized in that the gas outlet channels (4) are provided with flow resistors (7) preferably arranged outside the conveying chute (1 ), which in particular are adjustable.
5. The device according to any one of the preceding claims, characterized in that the at least one main channel (3) or main channel portion (1 1 ) is attached to the out- side of the tube wall (5) of the conveying chute (1 ).
6. The device according to any one of the preceding claims, characterized in that the nozzle tubes (6) are positioned at intervals of about 100 to 400 mm, preferably about 150 to 250 mm.
7. The device according to any one of the preceding claims, characterized in that the conveying chute (1 ) or the conveying chute portions (2) is/are inclined.
8. The device according to claim 7, characterized in that the inclination of the conveying chute (1 ) or the conveying chute portions (2) is about 1 to 20°, preferably about 5 to 15°.
9. The device according to any one of the preceding claims, characterized in that the conveying chute (1 ) or the conveying chute portions (2) is/are supported by a steel structure and/or a brick lining.
10. The device according to any one of the preceding claims, characterized in that at least two conveying chute portions (2) are sealingly connected with each other via end-face flanges (8).
11. The device according to any one of the preceding claims, characterized in that the nozzle tubes (6) are provided with cleaning and/or poking holes accessible from outside the conveying chute (1 ).
PCT/EP2010/002468 2009-05-08 2010-04-22 Device for transporting bulk materials Ceased WO2010127771A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BRPI1014804A BRPI1014804B8 (en) 2009-05-08 2010-04-22 DEVICE TO TRANSPORT MATERIALS IN BULK
EA201190278A EA019948B1 (en) 2009-05-08 2010-04-22 Device for transporting bulk materials
AU2010244789A AU2010244789B2 (en) 2009-05-08 2010-04-22 Device for transporting bulk materials
UAA201112270A UA101559C2 (en) 2009-05-08 2010-04-22 DEVICES FOR TRANSPORTATION OF Bulk Material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009020437.7A DE102009020437B4 (en) 2009-05-08 2009-05-08 Device for transporting bulk goods
DE102009020437.7 2009-05-08

Publications (1)

Publication Number Publication Date
WO2010127771A1 true WO2010127771A1 (en) 2010-11-11

Family

ID=42543337

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/002468 Ceased WO2010127771A1 (en) 2009-05-08 2010-04-22 Device for transporting bulk materials

Country Status (7)

Country Link
AU (1) AU2010244789B2 (en)
BR (1) BRPI1014804B8 (en)
DE (1) DE102009020437B4 (en)
EA (1) EA019948B1 (en)
JO (1) JO3034B1 (en)
UA (1) UA101559C2 (en)
WO (1) WO2010127771A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4019440A1 (en) * 2020-12-16 2022-06-29 KREISEL GmbH & Co. KG Air lift
CN118318140A (en) * 2021-11-23 2024-07-09 阿利特有限责任公司 Method and apparatus for conveying hot calcined raw meal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2984432B1 (en) * 2013-04-10 2017-08-02 Outotec (Finland) Oy Gas slide heat exchanger

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE584852C (en) * 1930-09-16 1933-09-25 Fritz Schmidt Dr Method and device for reducing the wear and tear on the conveyor pipelines of pneumatic or hydraulic conveyor systems
GB1035584A (en) * 1964-03-11 1966-07-13 Gattys Tech Improvements in and relating to the bulk discharge of materials
US3929379A (en) * 1973-02-02 1975-12-30 Waeschle Maschf Gmbh Method and apparatus for the pneumatic conveying of bulk material
US4281946A (en) * 1976-12-20 1981-08-04 Buhler-Miag Pneumatic conveyance device and conveying method employing percolation of gas into flowable bulk material in a feed pipe
EP0043117A1 (en) * 1980-06-28 1982-01-06 DÜRR Automation + Fördertechnik GmbH Method and arrangement for the pneumatic conveyance of solid materials
JPS60209430A (en) * 1984-04-02 1985-10-22 Babcock Hitachi Kk Granular material conveyor device
EP0603601A2 (en) * 1992-12-22 1994-06-29 MOTAN VERFAHRENSTECHNIK GMBH & CO. Device for the pneumatic transport of bulk material
US20040037658A1 (en) * 2002-08-20 2004-02-26 Pfeiffer John W. System for pneumatically conveying bulk particulate materials

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Publication number Priority date Publication date Assignee Title
FR1491292A (en) 1966-04-29 1967-08-11 Dumont L Device for transporting powdery products
US4400138A (en) * 1981-10-19 1983-08-23 Baer William F Multiple jet eductor
DE19709425C1 (en) 1997-03-07 1998-08-27 Raimund Dreyer Device for fluidizing and transporting fine-grained, powdery or short-fiber materials within a hose, tube or container
DE20211376U1 (en) 2002-07-27 2003-01-09 Sommer-Technik GmbH, 75334 Straubenhardt Device for pneumatic transporting of bulk material has nozzle formed as pipe which penetrates generated face of transporting pipe and which has opening pointing in transporting direction
EP1623941A1 (en) 2004-08-05 2006-02-08 Alcan Technology & Management Ltd. System and method for pneumatically conveying of free-flowing products in a dense flow

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE584852C (en) * 1930-09-16 1933-09-25 Fritz Schmidt Dr Method and device for reducing the wear and tear on the conveyor pipelines of pneumatic or hydraulic conveyor systems
GB1035584A (en) * 1964-03-11 1966-07-13 Gattys Tech Improvements in and relating to the bulk discharge of materials
US3929379A (en) * 1973-02-02 1975-12-30 Waeschle Maschf Gmbh Method and apparatus for the pneumatic conveying of bulk material
US4281946A (en) * 1976-12-20 1981-08-04 Buhler-Miag Pneumatic conveyance device and conveying method employing percolation of gas into flowable bulk material in a feed pipe
EP0043117A1 (en) * 1980-06-28 1982-01-06 DÜRR Automation + Fördertechnik GmbH Method and arrangement for the pneumatic conveyance of solid materials
JPS60209430A (en) * 1984-04-02 1985-10-22 Babcock Hitachi Kk Granular material conveyor device
EP0603601A2 (en) * 1992-12-22 1994-06-29 MOTAN VERFAHRENSTECHNIK GMBH & CO. Device for the pneumatic transport of bulk material
US20040037658A1 (en) * 2002-08-20 2004-02-26 Pfeiffer John W. System for pneumatically conveying bulk particulate materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4019440A1 (en) * 2020-12-16 2022-06-29 KREISEL GmbH & Co. KG Air lift
CN118318140A (en) * 2021-11-23 2024-07-09 阿利特有限责任公司 Method and apparatus for conveying hot calcined raw meal
US12441558B2 (en) 2021-11-23 2025-10-14 Alite Gmbh Method and apparatus for conveying hot calcined raw meal

Also Published As

Publication number Publication date
AU2010244789B2 (en) 2015-02-12
JO3034B1 (en) 2016-09-05
EA201190278A1 (en) 2012-05-30
AU2010244789A1 (en) 2011-11-17
EA019948B1 (en) 2014-07-30
DE102009020437A1 (en) 2010-11-11
BRPI1014804B1 (en) 2020-10-13
BRPI1014804A2 (en) 2016-04-05
DE102009020437B4 (en) 2025-02-06
BRPI1014804B8 (en) 2023-03-28
UA101559C2 (en) 2013-04-10

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