EP0217263B1 - Machine pour le traitement par la chaleur - Google Patents

Machine pour le traitement par la chaleur Download PDF

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Publication number
EP0217263B1
EP0217263B1 EP86113049A EP86113049A EP0217263B1 EP 0217263 B1 EP0217263 B1 EP 0217263B1 EP 86113049 A EP86113049 A EP 86113049A EP 86113049 A EP86113049 A EP 86113049A EP 0217263 B1 EP0217263 B1 EP 0217263B1
Authority
EP
European Patent Office
Prior art keywords
drum
chamber
treatment chamber
flow generator
gas stream
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.)
Expired
Application number
EP86113049A
Other languages
German (de)
English (en)
Other versions
EP0217263A1 (fr
Inventor
Friedrich Egger
Andreas Gautschi
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.)
Buehler AG
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Publication of EP0217263A1 publication Critical patent/EP0217263A1/fr
Application granted granted Critical
Publication of EP0217263B1 publication Critical patent/EP0217263B1/fr
Expired 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 invention relates to a tempering machine for lumpy goods, in particular to a pasta dryer, with a treatment chamber, a drum rotatably arranged in the treatment chamber, arranged along the circumference of the drum and surrounded by wall elements, with two mutually opposite wall sections facing adjacent chamber elements and two others Sections are assigned to the outer and inner circumference of the drum and have screen hole walls, and openings for the inlet and outlet of a gas flow which is forcibly conveyed through the treatment chamber and thereby also through the chamber elements.
  • Such a temperature control machine is known from FR-A-905 375.
  • the gas flow is blown into the treatment chamber and / or drawn off from it by means of fans.
  • the inlet / outlet openings provided for this purpose are arranged at one end of the treatment chamber.
  • a further fan is provided in addition to a heating spiral. This ensures that the forced air sweeps the drum over its entire length.
  • the gas flow is only passed through the upper half of the drum.
  • the flow lines run essentially in a plane that contains the drum axis - or in parallel planes.
  • a similar pasta dryer is known from IT-A-512 118.
  • a temperature control machine it should be expressed that such a machine is of course also suitable for cooling and in general for any type of heat or cold treatment.
  • the use of such machines is therefore not limited to pasta, but can also be used for the heat treatment of fruits (such as nuts or beans of all kinds) or for mineral, lumpy goods.
  • each chamber member formed a channel from the inside out for the dry air, which generally flowed across the drum.
  • the screen wall of the outer and inner circumference of the drum was fixed to the chamber element housing.
  • the invention has for its object to further develop a temperature control machine of the type mentioned in such a way that a better efficiency is achieved, in particular a higher drying effect, in particular already achieved at lower temperatures, and overall energy savings for operating the dryer are thereby achieved.
  • the openings for a passage of the gas flow through the treatment chamber are arranged on opposite sides of the treatment chamber and in addition at least one flow generator is arranged in the treatment chamber for generating a partial gas flow, such that the Part gas stream flows in the direction around the drum axis and is guided at least once through the chamber elements.
  • the measure according to the invention ensures that the gas supplied in the continuous operation (generally air, but possibly also steam or an inert or treatment gas) does not simply flow through and remains partially unused, but is additionally conducted around in the treatment chamber. Due to the rotation of the drum, only a part of the chamber elements will have a screen hole wall completely covered by the material. This gives the possibility that the circulating gas, i.e. the partial gas flow flowing in the direction around the drum axis flows through at the point of least resistance, namely where the material only partially covers the screen hole wall and also leaves an essentially free channel open. Therefore, according to the invention, the flow generator is arranged in such a way that the flow is led straight through those chamber elements whose screen hole walls are completely covered by the material.
  • a particularly favorable gas distribution can be achieved by arranging the flow generator with respect to a cross-section through the drum at an angle, for example in the range of approximately 40 ° or approximately 45 °, for directing the gas, and again, preferably, together with a another such flow generator on a through the plane of the drum axis should lie.
  • the flow generator is assigned at least one guide surface, which forcibly guides the partial gas flow through those chambers whose screen hole wall is covered with material.
  • the guide surface is located on the side of the flow generator facing the chambers. Such a guide surface can be arranged on the opposite side. If, however, the above-mentioned second flow generator is present, then its guide surface on the side facing the chamber elements mentioned can expediently also form the back surface for the other flow generator on the side facing away from the chamber elements thus filled.
  • Fig. 1 shows a drum 1 in a drum housing 2, in which it is mounted in a manner (not shown).
  • the drum housing 2 is jacked up on a frame 14.
  • the side walls 15 of the drum housing 2 can be opened in a manner indicated by arrows.
  • hinges are provided on the top of the drum housing 2.
  • the material to be dried 16 to be treated is circulated in chamber elements 6 when the drum 1 rotates. It is understandable that with this circulation the material to be dried 16 is transported along specially provided screw flights (not shown in FIG. 1) in the longitudinal direction of the chamber elements.
  • the drum 1 is divided over its length at predetermined intervals by drum shields 3.
  • drum shields 3 On the side of the housing 2, each of these drum shields is opposite an intermediate wall 4 ′ or 4 ′′ which surrounds the shields 3 tightly, wherein the respective shield 3 can be inserted into the opening of the intermediate wall 4 ′, 4 ′′ surrounding it during assembly.
  • the chamber elements 6 are box-shaped and arranged around the circumference of the drum 1. In each chamber element 6 there is a conveyor device, along which, as already mentioned, the goods to be treated, generally pasta, can be transported at a uniform speed.
  • the inner circumference of the drum 1 is delimited by a sieve fabric 8 which is placed over rods 9 which are each fastened between two shields 3. While in the embodiment shown the inner screen wall consists of a single screen fabric 8, which is common to all the chamber elements 6 arranged on the drum 1, with respect to the outer screen wall each chamber element 6 is assigned a separate screen wall 10, which at its lateral ends with the help of inserted rods 11 is held taut on the housing of each chamber element 6.
  • the drum 1 is permeable to air transversely to its axis due to its design with sieve walls on the inner and outer circumference, so that a treatment gas, generally hot air, for example on the underside, is blown into a treatment chamber 24 via a pipe 23 and on the top, for example via a discharge pipe 13, can be removed.
  • a treatment gas generally hot air, for example on the underside
  • each treatment chamber consisting of a pure heating element 17 and a blower 18.
  • the air contained in each treatment chamber is circulated in accordance with the arrows 19 and thereby heated by the heating device 17.
  • the treatment chamber has an inlet opening 20 on its front intermediate wall 4 ′′ and an outlet opening 21 on its rear intermediate wall 4 ′.
  • a connection to the adjacent treatment chamber 124 can be established through these openings 20, 21, provided that the openings 20, 21 are not closed, (as will be described later with reference to Fig. 2.)
  • By switching over corresponding flaps 76 (cf. Fig.
  • a connection can also be established with the non-adjacent treatment chamber 224, the heated air being conducted over the pipes 13 and 23, respectively
  • a treatment can be carried out according to the countercurrent principle, the air laden with moisture being sent to the material 16 to be dried, but all the openings can also be closed, so that each treatment chamber 24, 124, 224 has one can have separate and independent climate setting.
  • the flow path for the through-air operation is given by the axis of the tubes 23 and 13 or the openings 20 and 21. This ensures that air is passed through the chamber elements 6 in the upper and lower quarters of the drum 1 in the through-air mode. Just above in the upper and lower quarters, the screen hole walls 10 of the chamber elements 6 are completely covered by the material, so that it is ensured that the air cannot pass the material essentially ineffectively. However, even with a narrow construction of the treatment chamber 4, there is sufficient space on the side to allow the through-air to escape.
  • the fans 18 are arranged as circulating air fans and are angularly offset from the vertical 82 so that the circulating air flow, also called partial gas flow, does not hinder the vertical through-air flow.
  • the arrows 19 show, there is even a trouble-free circuit, the air being driven through the blowers 18 in accordance with the arrows 19 through the chamber elements 6 in the upper and lower quarters even in the recirculating air mode, whereas they move laterally where the screens of the chamber elements 6 are not completely covered by the good 16, can pass the good and therefore it dries less intensely.
  • the illustrated arrangement of the two fans 18 at an incline to the vertical 82 (flow direction of the through air), for. B. at 45 ° inclined, extending through the drum axis plane 83 ensures that the through air also affects the air circulation by directing the air against the lower and upper chamber elements 6. It is advantageous if guide surfaces 80 are also provided for the forced guidance of the circulating air, which make it impossible to evade the circulating air and forces it through the upper and lower chamber elements 6.
  • the angle between the planes 82 and 83 is denoted by a in FIG. 1.
  • each of the treatment chambers 24, 124, 224 is equipped with a separate unit 17, 18 for heating and distributing the air, but possibly also for treatment steam (for peeling beans, such as soybeans, etc.).
  • the drum 1 is driven via its shaft 71 with the aid of a motor 72, but the drive could also take place via circumferential rings of the drum.
  • the material to be treated can be fed to the individual openings in the shields 3 via a channel 73 and a similar channel, not shown, can be provided on the opposite side of the drum 1.
  • both openings 20, 21 can be partitioned off with the aid of a slide 74 or 75 2, a connection is created between the treatment chambers 24 and 124, so that both can be operated with circulating air, for example.
  • only one of the two blowers 18 needs this Treatment chambers can be put into operation, or one blower 18 can suck the air out of the assigned treatment chamber, and the other can blow in.
  • the treatment chamber 24 for a powerful heat treatment, the treatment chamber 124 for the Aftertreatment and the treatment chamber 224 may be provided for cooling.
  • Each treatment chamber can be provided with a suction and a discharge opening for through-air operation.
  • the treatment chamber 24 can also be provided for gentle predrying and only the treatment chamber 124 for a subsequent treatment process with air at a higher temperature. If desired, more than three treatment chambers or just two treatment chambers may also be arranged.
  • the conveying device contained in the box-shaped chamber elements 6 of the drum 1 generates in each case a flow of material to be treated which runs parallel to the drum axis, so that the material to be treated automatically during a predetermined time given by the axial length of each treatment chamber or by the speed of rotation of the drum 1 goes through certain climatic zone after the other.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Claims (6)

1. Machine de conditionnement de température pour produits en vrac, notamment machine de séchage pour pâtes alimentaires, comprenant:
a) une chambre de traitement (24; 124; 224),
b) un tambour (1) monté rotatif dans cette chambre (24; 124; 224),
c) des chambres élémentaires (6) disposées le long de la périphérie du tambour et entourées par une paroi,
c.1 ) deux éléments de paroi qui se font face étant tournés vers des chambres élémentaires (6) voisines et
c.2) deux autres éléments étant associés au contour périphérique extérieur et au contour périphérique intérieur du tambour (1), ces deux autres éléments comportant des parois perforées (8, 10), et
d) des ouvertures (13, 20, 21, 23) prévues pour l'entrée et pour la sortie d'un écoulement de gaz se déplaçant à circulation forcée à travers la chambre de traitement (24; 124; 224) et donc aussi à travers les chambres élémentaires (6),
caractérisé en ce que:
e) les ouvertures (13, 20, 21, 23) prévues pour une traversée de l'écoulement de gaz à travers la chambre de traitement (24; 124; 224) sont disposées sur des côtés de cette chambre (24; 124; 224) se faisant face et en ce que
f) au moins un générateur d'écoulement (18) est disposé en plus dans la chambre de traitement (24; 124; 224) en vue de la production d l'un courant gazeux partiel (19) et d l'une façon telle que ce courant partiel (19) s'écoule suivant une direction faisant le tour de l'axe du tambour et traverse à cette occasion au moins une fois les chambres élémentaires (6).
2. Machine de conditionnement de température suivant la revendication 1, caractérisée en ce que le générateur d'écoulement (18) prévu pour le courant gazeux partiel (19) est réalisé sous la forme d'une soufflante à axe de rotation s'étendant sensiblement parallèlement à la tangente au tambour (1).
3. Machine de conditionnement de température suivant la revendication 1 ou 2, caractérisée en ce que le générateur d'écoulement (18) prévu pour le courant gazeux partiel (19) est disposé, si on considère une coupe transversale à travers le tambour (1), sous un certain angle par rapport à la direction de traversée (82) de l'écoulement de gaz, de sorte que le courant gazeux partiel (19) et le courant gazeux traversant s'écoulent sans gêne réciproque.
4. Machine de conditionnement de température suivant la revendication 3, caractérisée en ce que l'angle est égal à environ 40° ou environ 45°.
5. Machine de conditionnement de température suivant l'une des revendications précédentes, caractérisée en ce que le générateur d'écoulement (18) se trouve, en commun avec un autre générateur d'écoulement (18) de ce type, dans un plan (83) passant par l'axe du tambour.
6. Machine de conditionnement de température suivant l'une des revendications précédentes, caractérisée en ce qu'il est associé au générateur d'écoulement (18) au moins une surface déflectrice (80) destinée à l'introduction forcée du courant gazeux partiel (19) à travers les parois perforées (8, 10) totalement recouvertes par le produit (16) et en ce que, vu suivant la direction d'écoulement, cette surface déflectrice (80) est disposée à distance du côté du générateur d'écoulement (18) qui est situé vers les parois pérforées totalement recouvertes par le produit (16).
EP86113049A 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur Expired EP0217263B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5146/83 1983-09-22
CH514683 1983-09-22

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP84110713.9 Division 1984-09-07

Publications (2)

Publication Number Publication Date
EP0217263A1 EP0217263A1 (fr) 1987-04-08
EP0217263B1 true EP0217263B1 (fr) 1989-03-29

Family

ID=4288702

Family Applications (4)

Application Number Title Priority Date Filing Date
EP88106232A Expired - Lifetime EP0305638B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP86113049A Expired EP0217263B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP84110713A Expired - Lifetime EP0142652B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP86113042A Expired EP0216346B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement thermique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88106232A Expired - Lifetime EP0305638B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP84110713A Expired - Lifetime EP0142652B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement par la chaleur
EP86113042A Expired EP0216346B1 (fr) 1983-09-22 1984-09-07 Machine pour le traitement thermique

Country Status (4)

Country Link
US (1) US4688336A (fr)
EP (4) EP0305638B1 (fr)
DE (2) DE3481214D1 (fr)
WO (1) WO1988004019A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664823A5 (fr) * 1985-06-11 1988-03-31 Luxia Limited Sechoir rotatif pour pates alimentaires.
EP0226683A1 (fr) * 1985-12-16 1987-07-01 Alsthom Dispositif de séchage de matières composites humides
EP0228492A1 (fr) * 1985-12-16 1987-07-15 Alsthom Installation de séchage de matériaux composites humides
IT1213716B (it) * 1987-11-06 1989-12-29 Benito Pera Impianto per la tostatura di caffe'noccioline, arachidi e simili prodotti
IT1234383B (it) * 1989-02-02 1992-05-15 Patrizio Fazion Impianto di essiccamento per paste alimentari o prodotti similari.
KR100331477B1 (ko) * 1999-10-18 2002-04-09 나양수 음식 폐기물 열풍 건조기
DE102005023258A1 (de) * 2004-11-16 2006-11-23 Fan Separator Gmbh Drehtrommel zur aeroben Erwärmung rieselfähiger Feststoffe
US8123046B2 (en) * 2008-10-23 2012-02-28 Michael David Billeaud Method and apparatus for separating and removing fluids from drill cuttings
GB2491593B (en) * 2011-06-07 2014-04-16 Chinook End Stage Recycling Ltd Improvements in waste processing
KR102063765B1 (ko) * 2013-06-20 2020-03-02 엘지전자 주식회사 폐열 회수수단을 갖는 건조기
CN112229178A (zh) * 2020-10-11 2021-01-15 苏州策尼特建材科技有限公司 一种新型建筑材料干燥装置
CN112984965B (zh) * 2021-05-10 2021-09-10 江西省药品检验检测研究院 一种真空冷冻干燥装置
CN116538774B (zh) * 2023-07-06 2024-02-02 徐州徐工养护机械有限公司 一种沥青骨料回收用滚筒干燥机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE320526C (de) 1918-09-08 1920-04-23 Josef Janka Trockentrommel mit sektorfoermigen Taschenhorden
US1711188A (en) * 1927-07-12 1929-04-30 Braly Mfg Company Drying machine
DE693641C (de) * 1938-08-11 1940-07-16 J M Lehmann Fa Trommeltrockner mit ringfoermig angeordneten rohrartigen Einzelzellen zur Foerderung des Gutes
FR888387A (fr) * 1942-04-23 1943-12-10 Séchoir rotatif pour les graines, pulpes, poudres et pâtes alimentaires coupées
FR905375A (fr) * 1943-05-13 1945-12-03 Fava & Figli M Séchoir continu pour pâtes alimentaires courtes
FR1019408A (fr) * 1950-06-02 1953-01-21 Séchoir pour matières en vrac
AT270510B (de) 1966-04-21 1969-04-25 Semperit Ag Trommeltrockner

Also Published As

Publication number Publication date
DE3483695D1 (de) 1991-01-10
EP0142652B1 (fr) 1990-01-31
EP0305638A1 (fr) 1989-03-08
EP0142652A1 (fr) 1985-05-29
EP0305638B1 (fr) 1990-11-28
EP0216346A1 (fr) 1987-04-01
EP0217263A1 (fr) 1987-04-08
US4688336A (en) 1987-08-25
DE3481214D1 (de) 1990-03-08
EP0216346B1 (fr) 1988-07-20
WO1988004019A1 (fr) 1988-06-02

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