EP3947219A1 - Rohrleitungssystem zum pneumatischen fördern von schüttgut - Google Patents
Rohrleitungssystem zum pneumatischen fördern von schüttgutInfo
- Publication number
- EP3947219A1 EP3947219A1 EP20715952.6A EP20715952A EP3947219A1 EP 3947219 A1 EP3947219 A1 EP 3947219A1 EP 20715952 A EP20715952 A EP 20715952A EP 3947219 A1 EP3947219 A1 EP 3947219A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- pipeline system
- secondary line
- conveying
- wear
- 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.)
- Pending
Links
- 239000013590 bulk material Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000000919 ceramic Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000004382 potting Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 3
- 239000002956 ash Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 ores Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052572 stoneware Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits
-
- 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
- B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- 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
- B65G53/52—Adaptations of pipes or tubes
-
- 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
- B65G53/52—Adaptations of pipes or tubes
- B65G53/523—Wear protection
-
- 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
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
Definitions
- the invention relates to a pipeline system for the pneumatic conveying of bulk material.
- CH 685697 describes a pipeline system which comprises at least one delivery line and one compressed air line, the compressed air line having a plurality of openings oriented in the axial direction and spaced from one another, via which the compressed air line is connected to the delivery line.
- the compressed air line is attached to the inner wall of the delivery line and includes a deflector plate to divert the compressed air and to clear the blockage.
- DE 2021 1770 U1 describes a device for pneumatically or hydraulically conveying bulk material with a conveying line, an inner tube with openings, and with flow resistances in the inner tube in the area of the openings, the flow resistances serving to dissolve blockages.
- the disadvantage of the known systems is that they are either made from steel susceptible to wear or that they tend to clog under certain conditions.
- the present invention is now the task of creating a pipeline system which increases the service life of the lines for abrasive bulk goods, which enables the continuous conveyance of bulk goods, prevents the accumulation of bulk goods and clogging, and a stable conveyance with high loads over long distances guaranteed.
- a pipeline system for the pneumatic conveying of bulk material with a conveying line and a secondary line, the secondary line being connected to the conveying line via openings which are distributed over the length of the conveying line.
- the delivery line has a wear-resistant material over the entire inner surface, and the secondary line is arranged on the outside of the delivery line.
- the delivery line and the secondary line are enclosed by a casing pipe, and the space between the delivery line and the casing pipe and between the secondary line and the casing pipe is filled with a filler material.
- the invention has the advantage that the pipeline system through the delivery line, which has a wear-resistant material on at least the entire inner surface, has a high level of abrasion resistance and thus a high level of wear protection.
- This has the advantage that the service life of the Pipeline system are increased and the inventive pipelines need to be replaced less quickly than conventional systems made of steel.
- Another advantage is that the secondary line on the outside of the delivery line prevents clogging within the delivery line and bulk material accumulations can be broken up by the conveying air passing through the openings into the secondary line and flowing through the secondary line if the delivery line is blocked.
- the conveying cross-section available for the bulk material is retained in the conveying line, in contrast to conventional systems in which the secondary line is attached to the inside of the conveying line, which reduces the conveying cross-section.
- the arrangement of the secondary line on the outside of the conveying line thus additionally leads to an improved continuous conveyance of bulk material.
- the pipeline system according to the invention is therefore particularly suitable for conveying abrasive bulk materials.
- a pipeline system is understood to mean a system of pipelines which is suitable for the pneumatic conveyance of bulk material, in particular abrasive bulk material.
- the pipeline system is also sometimes referred to as a dense phase pipe.
- the bulk material to be conveyed can, for example, be dusty, powdery or granular.
- Abrasive bulk materials are, for example, lignite, activated carbon, fly ash, sintered dust, bottom ash, boiler ash, filter ash, oxides of ferrous and non-ferrous metals, ores, abrasive materials used in the chemical industry, slag or sand.
- Pneumatic conveying means the transport of bulk goods with gas such as air or an inert gas, preferably air, by means of excess or negative pressure.
- gas such as air or an inert gas, preferably air
- an inert gas preferably nitrogen
- the promotion takes place through pipes.
- the entire inner surface of the delivery line preferably has a wear-resistant material.
- the entire inner surface is understood to mean that at least the inside of the delivery line is coated with a wear-resistant material. In a preferred embodiment, not only does the entire inner surface of the conveying line have a wear-resistant material, but the entire conveying line consists of a wear-resistant material.
- a wear-resistant material is understood to mean a material which is resistant to mechanical abrasion by bulk material.
- wear-resistant materials are ceramics, flart metal, flart alloys, flart stoneware, corundum or fused basalt.
- the wear-resistant material is preferably ceramic. Ceramic has therefore proven to be particularly preferred because it has a higher wear resistance to abrasive bulk materials than other wear-resistant materials. This means that less material is required and thus the costs and weight are lower than with other wear-resistant materials.
- the entire inner surface of the secondary line preferably also has a wear-resistant material.
- the entire secondary line preferably consists of a wear-resistant material, preferably ceramic.
- Ceramic is understood to be a non-metallic material which is preferably made from the raw materials aluminum oxide, zirconium oxide or silicon carbide.
- ceramic comprises alumina.
- the delivery line or the delivery line and the secondary line consists essentially of aluminum oxide.
- the aluminum oxide ceramic can contain small amounts of additional materials in addition to aluminum oxide, but at least 90%, preferably at least 99%, consists of aluminum oxide.
- Alumina is particularly preferred because it is particularly high Has wear resistance and thus minimal wall or layer thicknesses are required for the desired wear resistance. This means that the costs and weight of the pipe systems can be kept as low as possible.
- the jacket pipe which surrounds the delivery line and the secondary line is made of steel, aluminum, plastic or cardboard, for example.
- the jacket tube is preferably made of steel.
- the space between the delivery line and the casing pipe and between the secondary line and the casing pipe is filled with a filler material.
- the filling material absorbs impacts, bends and vibrations caused by the bulk material and thereby strengthens the conveying line.
- ceramic and steel are subject to different thermal expansions, which can be compensated for by a suitable filler material.
- the filling material holds the secondary line in position if the attachment between the secondary line and the delivery line should loosen during prolonged use of the delivery line.
- Suitable filling materials are, for example, mineral or cement-containing potting compounds, for example mortar, lightweight concrete, cement, flat foam or gypsum.
- Mortar or cement, in particular Portland cement, is particularly preferred as the filler material.
- the secondary line is arranged on the outside of the conveying line and preferably attached to it, preferably by means of an adhesive. Epoxy resins or silicone-based resins, for example, can be used as adhesives. In a preferred embodiment, the secondary line is attached to the outside of the delivery line by means of an epoxy resin. Epoxy resin has proven to be particularly suitable when the delivery line and preferably also the secondary line consists of ceramic and ceramic is glued.
- the delivery line is preferably a pipe with a circular cross section and has several openings which are distributed over the length of the delivery line along a single longitudinal axis.
- the conveying line preferably has an internal diameter of 50 mm to 500 mm, preferably 50 mm to 200 mm, and an external diameter of 70 mm to 500 mm, preferably 70 mm to 250 mm.
- the delivery line has an internal diameter of 80 mm and an external diameter of 110 mm.
- the delivery line is preferably produced in molded parts, each molded part of the delivery line preferably having only one opening.
- the opening preferably has an elongated shape, for example an oval shape, preferably the shape of an elongated hole.
- the opening preferably has a length of 10 mm to 50 mm, preferably 20 mm to 40 mm, particularly preferably 30 mm, and a width of 2 mm to 30 mm, preferably 10 mm to 20 mm, particularly preferably 15 mm.
- the molded part, each with an opening preferably has a length of 10 cm to 50 cm, preferably 20 cm to 40 cm, particularly preferably 25 cm to 30 cm.
- several molded parts of the conveyor line are lined up until the desired length of the conveyor line is reached.
- the secondary line is preferably designed as a tubular profile that is open in the longitudinal direction, for example as a half-tube.
- the open tubular profile preferably has a U-shaped, for example a semicircular, cross section.
- the secondary line can also have an angular cross section that is open on one side.
- the pipe profile preferably has an open pipe segment with a cut-out angle of 100 ° to 180 °.
- the cut-out angle is particularly preferably 140 °.
- the cut-out angle of 140 ° has proven to be particularly preferred when the secondary line is glued to the delivery line. With a cut-out angle of 140 °, less glue is required than with others Cut angles to glue the secondary line to the delivery line. The less adhesive is required, the smaller the area of attack which can come into contact with the abrasive bulk material and thereby be removed.
- the delivery line has a wall thickness of at least 10 mm, preferably at least 12 mm, and the secondary line has a wall thickness of at least 4 mm, preferably at least 6 mm. These wall thicknesses are particularly preferred for delivery lines made of ceramic and for secondary lines made of ceramic.
- the secondary line is also preferably produced as a molded part.
- the secondary line is preferably arranged parallel to the delivery line on its outside along the openings, in such a way that the openings are enclosed by the secondary line and the secondary line forms a channel together with the outside of the delivery line.
- the pipeline system according to the invention preferably has a secondary line.
- designs with several secondary lines are also possible, which are arranged parallel to the delivery line on the outside of the delivery line.
- a molded part of the secondary line is preferably fastened to the outside of a molded part of the conveying line and the two molded parts have the same length.
- the secondary line preferably extends over the entire length of the conveying line.
- the secondary line is attached to the outside of the conveying line over the entire length of the conveying line.
- the secondary line and the conveying line are open to the sending container and the target container and the bulk material and the conveying air from the sending container are introduced into the conveying line and into the secondary line via pressure and conveyed into it until the bulk material and the conveying air are conveyed leaves the conveying line and the secondary line again in a target container.
- the bulk material to be conveyed is introduced into the pipeline system from a container via compressed air. The main part of the bulk material flows into the conveying line. If the conveying of the bulk material to be conveyed is normal, the compressed air also mainly flows through the conveying line.
- the compressed air escapes from the conveying line and reaches the secondary line via the openings.
- the compressed air leaves the secondary line via the openings in the direction of the delivery line, where bulk material can be removed for further delivery.
- the pipeline system according to the invention is preferably produced in pipeline sections which are assembled into pipelines of desired lengths and shapes as required.
- the pipe sections preferably have a length of 1 to 6 meters, particularly preferably 2 to 3 meters.
- individual molded parts of the secondary line are first attached to the desired location on the outside of individual molded parts of the delivery line.
- Several molded parts from the conveyor line and secondary line are lined up, fastened to one another, preferably with an epoxy resin, and inserted into a steel pipe.
- the space between the delivery line and the casing pipe and between the secondary line and the casing pipe is then filled with a filler material.
- the individual pipe sections have a connection piece, for example a flange, at the respective ends and are fastened to one another with fastening means, preferably with screws, and sealed with a seal between the flanges.
- the pipeline system according to the invention is preferably used at the points of a pipeline which are exposed to particular wear by the bulk material. This can be, for example, in the area of bends or deflections.
- FIG. 1 shows a molded part of a conveying line in a perspective illustration
- FIG. 2A shows a molded part of a secondary line in a perspective illustration
- FIG. 2B shows a cross section through the secondary line from FIG. 2A
- FIG. 3 shows a cross section through a pipeline system according to the invention
- FIG. 4 shows a further cross section through a pipeline system according to the invention
- FIG. 5 shows a longitudinal section through a pipeline system according to the invention from FIG. 4.
- FIG. 1 shows a perspective illustration of a molded part 10 of a conveyor line 4 in a perspective view obliquely from above.
- the delivery line 4 has an opening 6 for each molded part 10.
- the opening 6 has the shape of an elongated hole.
- the molded part 10 preferably has a length of 250 mm.
- the entire inner surface 13 of the delivery line 4 is coated with a wear-resistant material, preferably ceramic.
- the entire conveying line is preferably made of a wear-resistant material, preferably ceramic, and preferably has a wall thickness of 12 mm.
- FIG. 2A shows a perspective illustration of a molded part 11 of a secondary line 5 of the pipeline system 1 according to the invention (not shown here).
- the secondary line 5 has a tubular profile which is open in the longitudinal direction and has a U-shaped cross section.
- the inner surface 14 of the secondary line 5 is preferably coated with a wear-resistant material, preferably with ceramic.
- the entire secondary line 5 consists of a wear-resistant material, preferably ceramic.
- FIG. 2B shows a cross section through the secondary line 5 shown in FIG. 2A.
- the U-shaped cross section has a cutout angle ⁇ of 140 °.
- the secondary line 5 is glued to the delivery line 4 by means of an epoxy resin (shown in FIG. 3).
- Figure 3 shows a cross section through a pipeline system 1 with a delivery line 4 with an opening 6, a secondary line 5 and a jacket pipe 7.
- the secondary line 5 surrounds the opening 6 of the delivery line 4 and is attached to the delivery line 4 via an adhesive 3 so that the secondary line 5 together with the delivery line 4 forms a channel.
- At least the inner surface 13 of the delivery line 4 and the inner surface 14 of the secondary line 5 comprise a wear-resistant material.
- the entire conveying line 4 and the entire secondary line 5 are preferably made of a wear-resistant material, preferably ceramic.
- the space between the delivery line 4 and the casing pipe 7 and between the secondary line 5 and the casing pipe 7 is completely filled with a filler material 2, preferably with a mineral or cement-containing potting compound, preferably with mortar or cement.
- FIG. 4 shows a further cross section through a pipeline system 1 with a delivery line 4 with an opening 6, a secondary line 5, a casing pipe 7 and a filling material 2 between the delivery line 4 and casing pipe 7 and between the secondary line 5 and casing pipe 7, as in FIG described.
- Figure 4 shows a connector 8, which at both ends of
- Pipeline sections (shown in Figure 5) can be attached to connect individual pipeline sections, preferably with screws. In this way, pipes of any length can be made.
- the pipe sections can have straight pieces but also bends, depending on the distance between a sending container and a
- the connecting piece 8 is preferably a circular disc, preferably a flange, with a hole in the middle.
- the connecting piece 8 is preferably made of steel and is welded to the jacket pipe 7.
- the connecting piece 8 has a plurality of bores 9 in the outer region of the disk for receiving fastening means, preferably screws.
- a pipe section 12 is shown and shows a longitudinal section through the plane AA of the pipe system 1 shown in Figure 4 with a delivery line 4 made of several molded parts 10, each with an opening 6, with a secondary line 5, a jacket pipe 7 and a filling material 2 between the conveying line 4 and the casing pipe 7 and between the secondary line 5 and the casing pipe 7.
- FIG. 5 shows the connecting pieces 8 for fastening several pipe sections 12 to one another. If two connecting pieces 8 are fastened to one another, a seal (not shown) is preferably placed between the two connecting pieces.
- the section B shows the length of a molded part of the delivery line 4 or the length of a molded part of the secondary line 5.
- Several molded parts of the delivery line 4 and the secondary line 5 of length B are lined up in a row in order to obtain the length of a pipe section 12. List of reference symbols
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Transport Of Granular Materials (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00433/19A CH716030A1 (de) | 2019-04-01 | 2019-04-01 | Rohrleitungssystem zum pneumatischen Fördern von Schüttgut. |
PCT/IB2020/052125 WO2020201856A1 (de) | 2019-04-01 | 2020-03-11 | Rohrleitungssystem zum pneumatischen fördern von schüttgut |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3947219A1 true EP3947219A1 (de) | 2022-02-09 |
Family
ID=70058420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20715952.6A Pending EP3947219A1 (de) | 2019-04-01 | 2020-03-11 | Rohrleitungssystem zum pneumatischen fördern von schüttgut |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3947219A1 (de) |
CH (1) | CH716030A1 (de) |
WO (1) | WO2020201856A1 (de) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH459060A (de) * | 1966-06-16 | 1968-06-30 | Buehler Ag Geb | Rohrleitung für den pneumatischen oder hydraulischen Transport kurzer, gleichartiger Materialpfropfen |
DE2209674A1 (de) * | 1972-03-01 | 1973-09-06 | Waeschle Maschf Gmbh | Rohr fuer eine in abstaenden mit zusatzluft zu beschickende foerderleitung |
US4220426A (en) * | 1978-12-26 | 1980-09-02 | Ply Lemuel L | Tubular pneumatic conveyor pipeline |
CH643513A5 (de) * | 1979-08-28 | 1984-06-15 | Alusuisse | Foerderleitungssystem fuer pulverfoermiges oder koerniges gut. |
JPH03205216A (ja) * | 1989-12-29 | 1991-09-06 | Tonen Corp | 粉粒体輸送ラインの構造 |
CH685697A5 (de) | 1992-09-25 | 1995-09-15 | Stag Ag | Rohrleitungssystem zur pneumatischen Förderung pulverförmiger oder körniger Materialien. |
DE9320465U1 (de) | 1993-05-05 | 1994-08-04 | Th Scholten Gmbh & Co | Fördermittel für den insbesondere pneumatischen oder hydraulischen Transport von abrasiven Gütern |
JPH1120941A (ja) * | 1997-06-30 | 1999-01-26 | Isobe Tekko Kk | 耐摩耗管 |
DE19842773A1 (de) * | 1998-09-18 | 2000-04-06 | Motan Fuller Verfahrenstechnik | Überström-Ventil mit längenunabhängigem Einbau |
DE20211770U1 (de) | 2002-07-17 | 2003-01-23 | Moeller Materials Handling Gmb | Vorrichtung zum pneumatischen oder hydraulischen Fördern von staubförmigen, pulverförmigen oder körnigem Schüttgut |
CN102530562A (zh) * | 2012-02-03 | 2012-07-04 | 南车长江车辆有限公司 | 一种粉粒物料流态化输送管 |
WO2013166603A1 (en) * | 2012-05-09 | 2013-11-14 | Shawcor Ltd. | Thermal insulating concrete composition |
CN204254162U (zh) * | 2014-12-04 | 2015-04-08 | 杜彬 | 发泡水泥保温油井管道装置 |
-
2019
- 2019-04-01 CH CH00433/19A patent/CH716030A1/de unknown
-
2020
- 2020-03-11 WO PCT/IB2020/052125 patent/WO2020201856A1/de unknown
- 2020-03-11 EP EP20715952.6A patent/EP3947219A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
CH716030A1 (de) | 2020-10-15 |
WO2020201856A1 (de) | 2020-10-08 |
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