WO1989005950A1 - Installation de sechage pour legumes et matieres minerales - Google Patents

Installation de sechage pour legumes et matieres minerales Download PDF

Info

Publication number
WO1989005950A1
WO1989005950A1 PCT/DK1988/000214 DK8800214W WO8905950A1 WO 1989005950 A1 WO1989005950 A1 WO 1989005950A1 DK 8800214 W DK8800214 W DK 8800214W WO 8905950 A1 WO8905950 A1 WO 8905950A1
Authority
WO
WIPO (PCT)
Prior art keywords
drying
drying section
section
relation
fact
Prior art date
Application number
PCT/DK1988/000214
Other languages
English (en)
Inventor
Torben Holt
Original Assignee
Torben Holt
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 Torben Holt filed Critical Torben Holt
Publication of WO1989005950A1 publication Critical patent/WO1989005950A1/fr

Links

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
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
    • F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
    • F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades

Definitions

  • the present invention is a drying machine for the drying of vegetable and mineral materials which can be rinsed, for example, corn, and is of the type comprised for the most part of a horizontal drying section which rotates on its own longitudinal axis and through which hot air is led. It is constructed in such a way that when the section rotates, the material passes through it from one end, the inlet end, to the other end, the discharge end, with or against the drying air.
  • Such machines produce the heat for the drying process in an oven section which can be fired with oil or solid fuel and which opens directly into one end of the drying section.
  • the material is fed into the machine by the rotation of the drying section and is dried as it passes through this by the hot air from the oven and by the fact that a large part of the water in the corn near the oven will evaporate due to the heat radiating from this.
  • the material is fed into the machine by means of the drying machine being slightly tilted in relation to the horizontal, and/or by means of angled paddles in the sides of the drying machine pushing the material forward or by changing the rotating speed of the drum. These methods can be detrimental to the flow of the material.
  • the purpose of the present invention is, therefore, to make available a drying machine in which the speed at which the material is brought forward in the drying section can be regulated during operation without these disadvantages.
  • a corn-drying machine in which the material is brought forward inside the drying section by guide blades which are or can be set at an angle relative to the drying section's longitudinal axis.
  • the guide blades which are stationary and fixed relative to and inside the drying section, can have a fixed, angled position to bring the material forward at a constant speed, or they can be made so that it is possible to adjust them at different angles in order to alter the speed at which the material is brought forward.
  • the individual guide blades can be set at different angles so that the material can pass through the drying section at different speeds.
  • the placement of the guide blades in the drying section will cause greater turbulence in the drying air than with the known machines, and the corn will make contact with the heated surfaces of the blades, both of which conditions will increase the drying speed of the corn. It will also be possible to utilise this effect even when the guide blades are not adjustable or if they rotate with the drying section.
  • the present invention makes it possible to control the position of the guide blades in a simple manner, for example to adjust the angle of the guide blades relative to the longtitudinal axis of the drying section in the vertical plane of the axis in such a way that the corn, when it falls on the blades as the section rotates, will be brought more or less forward.
  • the steering rod ' s function can be to affect to affect the guide blades attached to the inside of the section or to the steering rod itself. In the latter case the steering rod could be comprised of two co-axial parts which, as when an umbrella is opened, are displaced axially in relation to each other and thereby affect the angle of the blades.
  • the guide blades are comprised of a row of parallel and largely flat blades rigidly connected to and angled relative to the steering rod which can rotate in relation to the drying section and which can be locked so that it cannot rotate in relation to the base.
  • the drying machine described in claim 4 is equipped with a riddling device with at least one riddle of largely cylindrical shape and attached co-axially to the drying section.
  • Fig. 1 shows a drying machine pursuant to the present invention seen from the side
  • Fig. 2 shows a vertical cross section of the machine's oven section
  • Fig. 3 shows a vertical cross section of the machine's drying section.
  • Fig. 4 shows another construction of the oven section seen in cross section from the side
  • Fig. 5 shows a different way of feeding material into the machine pursuant to the present invention.
  • the drying machine pursuant to the present invention is supported by a base 1, upon which the oven section 2 is fixed and the drying drum 4 is supported with rollers 6 at one end and with a principal bearing 8 at the other end.
  • the oven section 2 has an oil burner 10 and a solid fuel grate 11 with a row of closely set parallel grate rods 12, the ends of which rest in the sides of the oven.
  • the oven 2 is lined with fire brick 13 and can be fed with fuel from an opening 14 or at the back part 15 of the grate 11.
  • the opening 14 ' also serves to provide primary air and, during standstill after firing with coal, for the extraction of hot gases with a stream of air in the opposite direction in order to avoid hot gas explosions.
  • the fuel is fed into the oven with the aid of compressed air or steam which is supplied by the individual grate rods 12 or sections of the grate rods via pipe branches 16 and openings in the direction in which the fuel is fed.
  • the back edges 19 of the grate rods 12 are serrated or corrugated in profile which makes it possible to feed primary air from the underside of the grate 11 when the grate rods 12 lie closely together, front edge to back edge.
  • the primary air is supplied by a blower 21 on the underside of the oven and around the worm conveyor 22 placed in the bottom which carries the material from a hopper 23 to the drying drum 4.
  • the drying drum 4 is divided into a drying section 30 and a riddling section 31, separated by a threshing rotor 32 with beaters 33.
  • the inner sides of the drying section 30 are equipped with carriers 34 parallel to the longitudinal axis of the drum 4.
  • the guide blades 40 which have a shape approximately equivalent to the inside diameter of the drying section 30, are rigidly mounted on a steering rod 41 which can be adjusted with a hand wheel 42, one end of which is in a seat 43 attached in the oven section 2, and the other end of which is supported by a seat in the hollow threshing axle 44.
  • the threshing axle 44 can be operated via a sprocket wheel 45 and is again supported in the supporting axle 46 which, in the principal bearing 8, via radially extending rods 47, supports the drying drum 4.
  • the supporting axle 46, and thereby the drum 4 can be made to rotate via a sprocket wheel 48.
  • the co-axial riddles 48 and 49 which open into a take-up container 50, are attached to the rods 47.
  • the worm conveyors 51, 52 and 53 can carry off the riddled material, for example, sand, grain and straw or stone.
  • An air duct 54 for carrying off process air is connected at the top of the container 50.
  • the stokehold 64 is shaped like a truncated cone, see Fig. 6, in order to supply more radiant heat to the inside of the drying drum 4.
  • a conveyor 22 in the bottom of the oven 2 instead of feeding the material to be dried via a conveyor 22 in the bottom of the oven 2, one can, in order to avoid scorching or burning of the material due to heat from the oven, feed it through the side of the drum as shown in Fig. 7.
  • a sloping plate 74 leads the material into the drying drum 4.

Landscapes

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

Abstract

Une installation de séchage, servant au séchage de légumes et de matières minérales, comprend une section de séchage (4) qui est disposée en général longitudinalement et en rotation autour de son axe longitudinal et à travers laquelle est acheminé de l'air chauffé. Pour transporter le matériau dans la section de séchage, on utilise des plaques de direction (4) qui sont ou peuvent être disposées dans une position inclinée par rapport à l'axe longitudinal de la section de séchage (4). Dans un mode de réalisation de la section de séchage (4), un essieu porteur creux (46) est placé au centre dans la section de séchage (4), une tige (41) sur laquelle sont disposées les plaques de direction (40) étant placées dans ledit essieu. On obtient ainsi un agencement avantageux des plaques de direction et en même temps le réglage de la position angulaire est simplifié. Outre le réglage de la vitesse du matériau à travers la section de séchage selon ses propriétés physiques, l'agencement des plaques de direction dans la section de séchage produit des turbulences dans l'air de séchage supérieures aux turbulences obtenues avec les installations connues et le matériau se trouve en contact avec les faces chauffées des plaques, ces deux conditions améliorant le séchage du matériau.
PCT/DK1988/000214 1987-12-21 1988-12-21 Installation de sechage pour legumes et matieres minerales WO1989005950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK6718/87 1987-12-21
DK671887A DK671887A (da) 1987-12-21 1987-12-21 Korntoerringsanlaeg

Publications (1)

Publication Number Publication Date
WO1989005950A1 true WO1989005950A1 (fr) 1989-06-29

Family

ID=8149008

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1988/000214 WO1989005950A1 (fr) 1987-12-21 1988-12-21 Installation de sechage pour legumes et matieres minerales

Country Status (4)

Country Link
EP (1) EP0390861A1 (fr)
AU (1) AU2914189A (fr)
DK (1) DK671887A (fr)
WO (1) WO1989005950A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931119A (zh) * 2018-07-27 2018-12-04 安徽鸡笼山食品有限公司 一种蔬菜制品制作用热风干燥装置
CN112388772A (zh) * 2020-11-09 2021-02-23 胡娜 一种中药晾晒去须一体装置及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118111206A (zh) * 2024-04-28 2024-05-31 展鹰(福建)新材料科技研发中心有限公司 一种化学试剂助剂生产用的恒温真空干燥设备及方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531589B2 (de) * 1974-07-15 1980-01-17 Almer Sangyo Kaisha Ltd., Tokio Drehofen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531589B2 (de) * 1974-07-15 1980-01-17 Almer Sangyo Kaisha Ltd., Tokio Drehofen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931119A (zh) * 2018-07-27 2018-12-04 安徽鸡笼山食品有限公司 一种蔬菜制品制作用热风干燥装置
CN112388772A (zh) * 2020-11-09 2021-02-23 胡娜 一种中药晾晒去须一体装置及其使用方法

Also Published As

Publication number Publication date
EP0390861A1 (fr) 1990-10-10
AU2914189A (en) 1989-07-19
DK671887A (da) 1989-06-22
DK671887D0 (da) 1987-12-21

Similar Documents

Publication Publication Date Title
US4253825A (en) Grain drier
US4064638A (en) Apparatus for drying seeds
US4217701A (en) Bin grain dryer
US4135308A (en) Continuous grain drying method
US3751267A (en) Material treating method
JP6758627B2 (ja) 碾茶炉およびこれを用いた荒茶製造方法
US4371375A (en) Apparatus and process for drying sawdust
RO117646B1 (ro) Procedeu si instalatie pentru deshidratarea materialelor granulare
US3798789A (en) Flighting for dehydrator drum and method
US3206044A (en) Orbital silage distributor
US5996245A (en) Aeration-type rotary dryer
GB2176423A (en) Apparatus for grading particulate material
WO1989005950A1 (fr) Installation de sechage pour legumes et matieres minerales
US4854941A (en) Method and apparatus for drying fine coal
US4597737A (en) Method and apparatus for drying or heat treating granular material
US486806A (en) Drier
US3333348A (en) Grain drying apparatus
US3078590A (en) Grain dryer
US3650199A (en) Material treating apparatus
US3745909A (en) Cereal toasting oven
US2683594A (en) Grain drying machine
AU614347B2 (en) Flight arrangement for rotary drum dryers
US5238399A (en) Material treating apparatus
US2959407A (en) Vibrating screen dryer
US2389650A (en) Apparatus for roasting coffee and the like

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CH DE DK FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 1989901105

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1989901105

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1989901105

Country of ref document: EP