EP0282937A2 - Rüttelmaschine zum Trocknen von Metallstücken mittels heisser Luft und absorbierendem Material - Google Patents

Rüttelmaschine zum Trocknen von Metallstücken mittels heisser Luft und absorbierendem Material Download PDF

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Publication number
EP0282937A2
EP0282937A2 EP88103965A EP88103965A EP0282937A2 EP 0282937 A2 EP0282937 A2 EP 0282937A2 EP 88103965 A EP88103965 A EP 88103965A EP 88103965 A EP88103965 A EP 88103965A EP 0282937 A2 EP0282937 A2 EP 0282937A2
Authority
EP
European Patent Office
Prior art keywords
scroll
machine
tubular
fact
ascending
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.)
Granted
Application number
EP88103965A
Other languages
English (en)
French (fr)
Other versions
EP0282937B1 (de
EP0282937A3 (en
Inventor
Mario Reni
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.)
Reni Cirillo SRL
Original Assignee
Reni Cirillo SRL
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 Reni Cirillo SRL filed Critical Reni Cirillo SRL
Priority to AT88103965T priority Critical patent/ATE72322T1/de
Publication of EP0282937A2 publication Critical patent/EP0282937A2/de
Publication of EP0282937A3 publication Critical patent/EP0282937A3/en
Application granted granted Critical
Publication of EP0282937B1 publication Critical patent/EP0282937B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/26—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays
    • F26B17/266—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays the materials to be dried being moved in a helical, spiral or circular path, e.g. vibrated helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B24B31/073—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers involving a bowl being ring- or spiral-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/26—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a helical path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
    • F26B7/005—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00 using admixture with sorbent materials and heat, e.g. generated by the mixture

Definitions

  • the present invention concerns a vibrating machine for the drying of metal pieces by means of hot air and absorbing material.
  • the finishing processes are effected by using water solutions and/or suspensions of various chemical compounds with detergent, pickling, abrasive or colouring action and they must, therefore, always be completed with a washing cycle of the finished pieces.
  • the washing cycle which normally employs water, must always be followed by a drying cycle of the washed pieces before these are packed for despatch or submitted to subsequent terminal processes such as painting or punching.
  • the water in fact, tends to adhere to the surface of the metal pieces in the form of small drops which may leave calcareous residue (if normal water is used for the final wash) or stains, but in any case the drops favour surface oxidation of the pieces if these are made from metals or from alloys subject to oxidation.
  • the system which uses solid absorbing material, broken down into small particles, such as wood sawdust or other synthetic and natural materials. These materials have the power to absorb a great quantity of water in proportion to their own weight and, furthermore, they exercise a very slight abrasive action on the surface of the pieces processed, without interfering with the finishing specifications and, indeed, they perfect the polish.
  • the water soaked drying material is then heated to remove the water absorbed, after which it can be recycled.
  • the pieces to be dried are put into the vibrating machine and yield the humidity to the drying material.
  • the dry pieces are separated from the drying material and discharged from the machine by screening.
  • the heating system can be either by contact with a hot plate or by elements in contact with the drying material or, by the more modern system of the input of hot air into the vibrating ring as, for example, described in a preceding patent application by the same inventor.
  • the vibrating bowl is obtained out of a metal construction, for the simpler models with a one turn scroll, but the construction can be obtained also in polymeric material, generally of the elastomer type, using a mould which produces the ring shaped bowl.
  • the metal construction can have an ascending scroll which makes more one turn, but the turns are limited by the weight of the scroll which dictates the use of very powerful vibrators and with great amplitude of vibrations. The great amplitude of the vibrations can cause damage to the pieces being dried.
  • a plastic lining is required for the metal scroll to prevent the pieces from becoming damaged, such a lining is very difficult to carry out if the scroll has more than one helix.
  • the metal driers are noisy and require a soundproofing cover to prevent excessive disturbance in the places where they are installed.
  • the machine described in the present invention resolves all the problems of traditional vibratory driers and, furthermore, has a definitely low cost.
  • the machine for drying metal pieces by means of hot air and absorbing material comprises:
  • the tubular ascending scroll consists of a pipe with a diameter from 15 to 25 cm being the same as the cavity wall between the two concentric metal cylinders.
  • the pipe is wrapped round the inner cylinder to form a scroll with a sufficient number of helixes to ensure a length of run adequate for the perfect drying of the pieces being processed.
  • the number of helixes is between two and five.
  • the pipe is made of polymeric material of polyolephinic, silicone, polyester or polyamide type. It is also possible to use the abovementioned materials reinforced with natural, synthetic, artificial, glass or metal fibres.
  • the residual space in the cavity wall is filled by a casting of a liquid elastomer resin which is subsequently hardened by polymerization.
  • This type of construction therefore, allows the obtainment of machines with an elastomer material scroll, without recourse to a particular type of mould; it also offers the possibility of obtaining more than one helix and a closed processing chamber and not a wide open one as in the normal machines moulded in polymeric material.
  • the lower part of the tubular ascending scroll is connected to a semi-circular trough gutter for the charging of the pieces to be dried and of the absorbing material.
  • a grid is inserted in the lower part of the trough to allow the elimination of the undersized particles of the absorbing material which, owing to the grinding effect of the pieces during the drying process, have been reduced to dimensions not in conformity with the desired granulometry.
  • Another semi-circular trough gutter, with a gridded bottom is connected to the lower part of the tubular ascending scroll and allows the separation of the drying material from the pieces, which are then directed to the packing stations or to other processes, the material is then recycled into the lower (charging) trough for further use.
  • Both the lower and the upper troughs are a fundamental part of the vibrating section of the machine.
  • the vibrating section of the machine consists of two concentric cylinders: 1 and 2, constructed in metal plate, resistant to vibration fatigue; a flexible pipe in plastic material (3) is wound round on the inside of the cavity wall between the cylinders to form an ascending scroll with three and a half helixes.
  • a pouring of elastomer material (4) of polyurethane type is made, the material is highly wear resistant and, when polymerized, it hardens and imprisons the flexible pipe (3), which, in this way, becomes a disposable mould for the polymerized polyurethane. In this way, a completely enclosed ascending scroll is formed, which becomes the drying chamber.
  • the vibrating section of the machine is fixed to a supporting base (17) by means of springs (16) and is put into vibration by the motor (15).
  • a heating unit is fixed to a non vibrating support base outside the drier, the heating unit consists of armoured electrical elements (7) and of a suction fan (8), these are connected by flexible hose (9) respectively to points (5) and (6): entry and exit of the scroll.
  • the air is sucked up by the fan (8), which is connected to the terminal part of the scroll and enters the heating unit (7) whose temperature is controlled by a thermostat (14), mounted in correspondence with the air suction.
  • the temperature of the air exiting from the scroll depends on the quantity of water evaporated, that is on the degree of humidity of the absorbing material.
  • the thermostat (14) allows the control of the amount of power to be supplied to the heating system (7) according to the degree of humidity desired in the absorbing material so optimizing to the maximum the power consumption.
  • the air heated in the heating unit (7) enters the lower part (5) and exits from the upper part of the tubular ascending scroll (6).
  • the fine absorbing material dust which forms during the drying stage, is transported in suspension (airborne) by the air which passes through the scroll and is caught in the air filters (not shown in the drawing) which are placed before the suction fan (8). In this way, both the air circulation in the machine and the dust removal from the drying material, as well as the elimination of fine particles, are ensured with only one suction fan (8).
  • the elimination of the particles of absorbent mterial of unsuitable granulometry, but not small enough to be airborne inside the scroll, is carried out in the outside run machined on the lower part of the drier, which consists of a trough (12), with a gauged gridded bottom (13), attached to the vibrating part of the machine, which serves to separated the undersized particles of the recycled drying material issuing from the ridding grid (pieces/material) situated in the upper part of the machine (not shown in the drawing).
  • Trough (12) is also the charging point for the pieces to be dried.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processing Of Solid Wastes (AREA)
EP88103965A 1987-03-17 1988-03-12 Rüttelmaschine zum Trocknen von Metallstücken mittels heisser Luft und absorbierendem Material Expired - Lifetime EP0282937B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103965T ATE72322T1 (de) 1987-03-17 1988-03-12 Ruettelmaschine zum trocknen von metallstuecken mittels heisser luft und absorbierendem material.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1972987 1987-03-17
IT19729/87A IT1203369B (it) 1987-03-17 1987-03-17 Macchina a mibrazione per asciogare pezzi metallici mediante aria calda e materiale assorbente

Publications (3)

Publication Number Publication Date
EP0282937A2 true EP0282937A2 (de) 1988-09-21
EP0282937A3 EP0282937A3 (en) 1990-03-14
EP0282937B1 EP0282937B1 (de) 1992-01-29

Family

ID=11160716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103965A Expired - Lifetime EP0282937B1 (de) 1987-03-17 1988-03-12 Rüttelmaschine zum Trocknen von Metallstücken mittels heisser Luft und absorbierendem Material

Country Status (5)

Country Link
EP (1) EP0282937B1 (de)
AT (1) ATE72322T1 (de)
DE (1) DE3868091D1 (de)
ES (1) ES2028921T3 (de)
IT (1) IT1203369B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0400516A1 (de) * 1989-06-02 1990-12-05 ROLLWASCH ITALIANA S.p.A. Vibrationsgerät, insbesondere für die massenweise Trocknung von metallischen Körpern, mit automatischem Ausgeben der getrockneten Teile
EP0426045A1 (de) * 1989-10-30 1991-05-08 RENI CIRILLO S.r.l. Rüttelmaschine zum Fertigbearbeiten, Waschen und Trocknen von Metallwerkstücken
EP1169165A1 (de) * 1999-03-12 2002-01-09 Tamer International, Ltd. Agglomerier- und trockenvorrichtung
ES2317783A1 (es) * 2000-10-19 2009-04-16 Comercial Frucosol, S.L. Mejoras en la patente numero 200002508 referenta a maquina secadora y abrillantadora de cubiertos y articulos metalicos de mesa.
ES2368045A1 (es) * 2008-07-08 2011-11-14 Comercial Frucosol, S.L MEJORAS INTRODUCIDAS EN LA PATENTE DE INVENCIÓN Nº 200002508, POR MÁQUINA SECADORA Y ABRILLANTADORA DE CUBIERTOS Y ARTÍCULOS METALICOS DE MESA.
CN103234337A (zh) * 2013-04-25 2013-08-07 山东省阳信慧源油脂有限公司 一种稻米油制备中原料预处理用的风干机
DE102019131105A1 (de) * 2019-11-18 2021-05-20 Rösler Holding GmbH & Co. KG Rundtrockner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098042A5 (de) * 1970-07-08 1972-03-03 Kobayashi Hisamine
FR2218019A5 (de) * 1973-02-09 1974-09-06 Oxy Metal Finishing Corp
GB1438583A (en) * 1973-10-18 1976-06-09 Shulika V P Khazhinsky J N Yak Vibratory-conveyor furnaces
GB2157408A (en) * 1984-04-10 1985-10-23 British Nuclear Fuels Plc Drying apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098042A5 (de) * 1970-07-08 1972-03-03 Kobayashi Hisamine
FR2218019A5 (de) * 1973-02-09 1974-09-06 Oxy Metal Finishing Corp
GB1438583A (en) * 1973-10-18 1976-06-09 Shulika V P Khazhinsky J N Yak Vibratory-conveyor furnaces
GB2157408A (en) * 1984-04-10 1985-10-23 British Nuclear Fuels Plc Drying apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0400516A1 (de) * 1989-06-02 1990-12-05 ROLLWASCH ITALIANA S.p.A. Vibrationsgerät, insbesondere für die massenweise Trocknung von metallischen Körpern, mit automatischem Ausgeben der getrockneten Teile
EP0426045A1 (de) * 1989-10-30 1991-05-08 RENI CIRILLO S.r.l. Rüttelmaschine zum Fertigbearbeiten, Waschen und Trocknen von Metallwerkstücken
EP1169165A1 (de) * 1999-03-12 2002-01-09 Tamer International, Ltd. Agglomerier- und trockenvorrichtung
EP1169165A4 (de) * 1999-03-12 2003-01-08 Tamer International Ltd Agglomerier- und trockenvorrichtung
ES2317783A1 (es) * 2000-10-19 2009-04-16 Comercial Frucosol, S.L. Mejoras en la patente numero 200002508 referenta a maquina secadora y abrillantadora de cubiertos y articulos metalicos de mesa.
ES2368045A1 (es) * 2008-07-08 2011-11-14 Comercial Frucosol, S.L MEJORAS INTRODUCIDAS EN LA PATENTE DE INVENCIÓN Nº 200002508, POR MÁQUINA SECADORA Y ABRILLANTADORA DE CUBIERTOS Y ARTÍCULOS METALICOS DE MESA.
CN103234337A (zh) * 2013-04-25 2013-08-07 山东省阳信慧源油脂有限公司 一种稻米油制备中原料预处理用的风干机
DE102019131105A1 (de) * 2019-11-18 2021-05-20 Rösler Holding GmbH & Co. KG Rundtrockner
EP3832239A3 (de) * 2019-11-18 2021-08-11 Rösler Holding GmbH Rundtrockner
US11674753B2 (en) 2019-11-18 2023-06-13 Rösler Holding Gmbh Round dryer

Also Published As

Publication number Publication date
EP0282937B1 (de) 1992-01-29
IT8719729A0 (it) 1987-03-17
DE3868091D1 (de) 1992-03-12
ATE72322T1 (de) 1992-02-15
ES2028921T3 (es) 1992-07-16
IT1203369B (it) 1989-02-15
EP0282937A3 (en) 1990-03-14

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