EP0226683A1 - Trockner für zusammengesetztes nasses Material - Google Patents

Trockner für zusammengesetztes nasses Material Download PDF

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Publication number
EP0226683A1
EP0226683A1 EP85402504A EP85402504A EP0226683A1 EP 0226683 A1 EP0226683 A1 EP 0226683A1 EP 85402504 A EP85402504 A EP 85402504A EP 85402504 A EP85402504 A EP 85402504A EP 0226683 A1 EP0226683 A1 EP 0226683A1
Authority
EP
European Patent Office
Prior art keywords
drum
pitch
enclosure
zone
pipes
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.)
Withdrawn
Application number
EP85402504A
Other languages
English (en)
French (fr)
Inventor
Bernard Allais
Yves Pelletant
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Priority to EP85402504A priority Critical patent/EP0226683A1/de
Publication of EP0226683A1 publication Critical patent/EP0226683A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F26B11/185—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement the drum provided with internal subdivisions or multiple walls
    • F26B11/187—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement the drum provided with internal subdivisions or multiple walls the subdivisions consisting of sector-shaped perforated chambers

Definitions

  • the present invention relates to a device for drying wet composite materials.
  • the invention applies in particular to the drying of so-called cut pasta.
  • One type of known pasta drying installation comprises a line succession of several, generally three, drums supported and driven in rotation by rollers.
  • Each drum comprises a plurality of conduits or conveyor tubes arranged in a ring.
  • These tubes or conduits include a means for advancing the pasta, for example an archimedes screw or similar systems, however these tubes are fixed relative to the drum which alone is driven in rotation, this rotation of the drum ensuring the advancement longitudinal of the pasta in the tubes.
  • each drum is located in a separate enclosure, conditioned at a certain humidity and at a certain temperature and the drive speed of each drum is different from one drum to another, decreasing from the upstream drums to downstream drums.
  • the climate from one enclosure to another is also different.
  • the passage of pasta from one drum to another is ensured through the enclosures separated by chutes.
  • the three drums constitute a single rotary, located in a single enclosure, however provided with partitions so as to allow the creation of different climates from one zone to another, each zone corresponding to a drum.
  • the three drums combined in a single rotary therefore have a common speed of rotation.
  • the advantage of the first system is that, for a given drying time, as the successive drums rotate less and less rapidly, the length of these drums decreases, the layer of dough in each drum obviously increasing.
  • the known solution comprising several drums located in separate enclosures and rotating at decreasing speeds therefore makes it possible to reduce the length of the drums by increasing the thickness of the dough layer of the downstream drums.
  • this solution is complicated because it comprises separate enclosures and several rotary drive devices.
  • the other system with a single enclosure with simple separation veils and several drums rotating at the same speed is much simpler but on the other hand, the thickness of the layer of pasta is constant which does not allow, for a given drying time, to decrease the length of the drums.
  • the present invention aims to achieve a compact system while remaining simple and relates to a device for drying wet composite materials
  • a device for drying wet composite materials comprising an enclosure divided into n climatic zones by partitions and inside which is located a single drum.
  • comprising means for driving in rotation said drum being divided into as many zones as said enclosure, and comprising a plurality of pipes parallel to the axis of the drum and distributed in a circular ring around said axis, each pipe being provided with means causing by the sole rotation of the drum, the axial advance of the materials contained therein, said means comprising inclined surfaces presenting a pitch
  • said drum comprising means for supplying said materials to said conduits and, at the outlet, means for evacuation, characterized in that said pitch has a decreasing value between the inlet and the outlet of the drum.
  • This decrease in the pitch of the advancement means can be carried out in various ways, for example preferably in an area from the drum to the next while being constant in each zone, this decrease in pitch can also be done within each zone of the drum, either in stages or in a continuous manner.
  • the assembly shows a device for drying short pasta. It includes an enclosure 1 divided into three climatic zones 2, 3 and 4 by partitions 5 and 6.
  • a drum 7 supported and driven in rotation by rollers 8 which roll on raceways 9, 10, 11 and 12.
  • This drum 7 comprises a plurality of pipes 13 parallel to the axis ⁇ of the drum and distributed in a circular ring around this axis. These pipes have inclined surfaces having a pitch so as to allow the advancement of the pasta along these pipes during the rotation of the drum.
  • Each surface portion of a series for example the surface portion 15A of the series 15 is connected to two neighboring surface portions 14A and 14B of the surface of the series 14 by an inclined surface portion 16A on the upper half of the height of the surface portions 15A and 14A and by an inclined surface portion 16B on the lower half of the height of the surface portions 15A and 14B.
  • the assembly is closed by two solid lateral faces 17, 18 and by two mesh faces 19 and 20.
  • the circulation of the pasta, during the rotation of the drum is represented by arrows in FIG. 5.
  • the drum 7, like the enclosure 1 is divided into three zones corresponding to the three zones 2, 3, 4 of the enclosure by two partitions internal to the drum 21 and 22.
  • the pasta is introduced into the drum by an introduction chute 23 discharging into a collector 24.
  • the dried pasta is collected by a collector 25 and then discharged into an evacuation chute 26.
  • the pitch of advancement of the conduits 13 is not constant: in the first zone 2 of length L1, the pitch is P1, in the second zone 3 of length L2 the step is P2 ⁇ P1 and in the third zone 4 of length L3, the step is P3 ⁇ P2 ⁇ P1.
  • This variation in pitch could also be done in steps within each zone or even continuously within each zone.
  • FIG. 2 is a cross section of Figure 1.
  • FIG. 1 there is an opening 27 in the lower position of the enclosure 1 for the entry of outside air.
  • FIG. 1 there is such an opening 27 for each zone 2, 3, and 4.
  • a heating coil 28 constituted for example by finned tubes in which hot water circulates.
  • a circulation fan 29 driven by a motor 30 sucks through this heating coil 28 and discharges downwards.
  • an extraction sheath 31 provided with shutters with flaps 32 is located in the high position on the face opposite the inlet 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
EP85402504A 1985-12-16 1985-12-16 Trockner für zusammengesetztes nasses Material Withdrawn EP0226683A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP85402504A EP0226683A1 (de) 1985-12-16 1985-12-16 Trockner für zusammengesetztes nasses Material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85402504A EP0226683A1 (de) 1985-12-16 1985-12-16 Trockner für zusammengesetztes nasses Material

Publications (1)

Publication Number Publication Date
EP0226683A1 true EP0226683A1 (de) 1987-07-01

Family

ID=8194561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402504A Withdrawn EP0226683A1 (de) 1985-12-16 1985-12-16 Trockner für zusammengesetztes nasses Material

Country Status (1)

Country Link
EP (1) EP0226683A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110328775A (zh) * 2019-07-18 2019-10-15 南京汇科高分子材料有限公司 一种用于生产玻璃包边用聚氨酯组合料的干燥箱

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR888387A (fr) * 1942-04-23 1943-12-10 Séchoir rotatif pour les graines, pulpes, poudres et pâtes alimentaires coupées
EP0142652A1 (de) * 1983-09-22 1985-05-29 Bühler AG Temperiermaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR888387A (fr) * 1942-04-23 1943-12-10 Séchoir rotatif pour les graines, pulpes, poudres et pâtes alimentaires coupées
EP0142652A1 (de) * 1983-09-22 1985-05-29 Bühler AG Temperiermaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110328775A (zh) * 2019-07-18 2019-10-15 南京汇科高分子材料有限公司 一种用于生产玻璃包边用聚氨酯组合料的干燥箱
CN110328775B (zh) * 2019-07-18 2024-04-05 南京汇科高分子材料有限公司 一种用于生产玻璃包边用聚氨酯组合料的干燥箱

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Inventor name: ALLAIS, BERNARD

Inventor name: PELLETANT, YVES