US2688807A - Conveyer-drier - Google Patents

Conveyer-drier Download PDF

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Publication number
US2688807A
US2688807A US293408A US29340852A US2688807A US 2688807 A US2688807 A US 2688807A US 293408 A US293408 A US 293408A US 29340852 A US29340852 A US 29340852A US 2688807 A US2688807 A US 2688807A
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Prior art keywords
conveyor
drier
vibrating
dried
heated air
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Expired - Lifetime
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US293408A
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James H Ginther
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Vibrantz Corp
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Ferro Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/26Machines 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
    • F26B17/266Machines 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

Definitions

  • This invention relates as indicated to a conveyor-dryer and has more particular reference to a vibrating conveyor in combination with drying means.
  • Vibrating conveyors are generally divided into two principal classes. First, there is the throwing type in which the material is thrown upward and forward and second, the closed path movement type in which the material is moved forward with a minimum of disturbance. This latter type depends upon friction between the material and the bed.
  • the present invention is applicable to both types of vibrating conveyors, however, it is interested in the throw type primarily.
  • Fig. 1 is a transverse sectional view of an embodiment of the present invention
  • Fig. 2 is a top plan view of Fig. 1;
  • Fig. 3 is a. part sectional, side elevational view of the conveyor drier with the feeder hopper and hot air supply in position.
  • Vibrating conveyor I is moveably mounted upon base I5 as by upwardly extending coil spring I6.
  • I8 is a motor which may be mounted on or adjacent to base I5 and connected to vibrating conveyor I by shaft I9. It will be understood that any suitable eccentric or vibrating means may be associated with conveyor I, the details of which form no part of the present invention. It will readily be seen from the annexed drawings that vibrating conveyor I has upstanding sides forming a trough thus preventing the material which is being dried from drifting off the conveyor.
  • the conveyor-dryer of the present invention especially suited for such substances as porcelain enamel.
  • the raw ingredients are smelted in a high temperature smelter and the molten material is run into water and fritted. The frit then has to be thoroughly dried before packaging.
  • the wet frit is placed into hopper I3 and fed into the conveyor-drier as by feeder I4.
  • the wet frit enters at the bottom of the vertical vibrating conveyor I and is conveyed upwardly. Hot air enters the conveyor-drier through inlet 3 and ows downwardly countercurrent to the ow of the material being dried. The air is exhausted ⁇ at the bottom of the conveyor-drier at outlet 9.
  • the outlet 9 is connected to exhaust fan II and the air is partially returned to heater unit I0 and partially exhausted through stack I2.
  • the air should enter the conveyor-drier at about 500 F. and moved at the rate of aboutv 2900 C. F. M. Under these conditions about of the air is recirculated through heater Ill and the remainder exhausted through stack I2. It is to be understood that the foregoing conditions are only one typical example of temperature and air velocity. It will readily be seen by those skilled in the art of drying that the air temperature and velocity may be varied according to the material to be dried and the amount of production desired.
  • the top portion of the helical conveyor as best shown at 8 in Fig. 1 comprises a scalping screen 4.
  • the material of the proper particle size drops through screen 4 and is discharged through discharge spout 5.
  • the oversize material is carried on screen 4 to discharge spout 6.
  • my present invention has several particular advantages over prior art practices of conveying and drying.
  • my invention permits the simultaneous movement of the material to packaging equipment or storage while it is being dried; secondly, the particle size of the material can be readily controlled; and thirdly the apparatus is relatively simple in construction and operation and consumes considerably less floor space than prior conveyors and dryers.
  • One other outstanding feature of my device consists in the vertical helical baffle surrounding the vibrating-conveyor. This latter point is particularly advantageous for two reasons: first, since the heated air is forced to follow the path of the conveyor bed the drying is performed more efciently and secondly, the heated air entering at the top of the device allows drainage of excess water and thus eliminates the Waste of heat trying to dry oiT the excess water.
  • a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical baffle coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baille, and means for supplying heated air to said drying and conveying apparatus.
  • a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical baffle coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baille and means for supplying heated air through the top of said device whereby the heated air ows countercurrent to the flow of material through said device.
  • a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical barang coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baille, means for enclosing said conveyor and baffle, means for supplying heated air through the top of said device and means for exhausting the heated air adjacent the bottom of said device whereby said heated air flows counter-current to the flow of material being dried in said device.
  • a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical barang coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said am, means for enclosing said conveyor and baffle, an inlet substantially adjacent the bottom of said conveyor for delivering material to be dried and an outlet substantially adjacent the top of said conveyor for discharging the dried material, means for supplying heated air through the top of said device and means for exhausting the heated air adjacent the bottom of said device whereby said heated air flows counter-current to the flow of said material being dried.

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

Description

Sept. 14, 1954 J. H. lGlNTl-IER CONVEYER DRIER 2 Sheets-Sheet l Filed June l5, 1952 Patented Sept. 14, 1954 CONVEYER-DRIER James H, Ginther, Berea, Ohio, assigner to Ferro Corporation, Cleveland, Ohio, a corporation of Application June 13, 1952, Serial No. 293.408
4 Claims.
This invention relates as indicated to a conveyor-dryer and has more particular reference to a vibrating conveyor in combination with drying means.
Vibrating conveyors are generally divided into two principal classes. First, there is the throwing type in which the material is thrown upward and forward and second, the closed path movement type in which the material is moved forward with a minimum of disturbance. This latter type depends upon friction between the material and the bed. The present invention is applicable to both types of vibrating conveyors, however, it is interested in the throw type primarily.
It is the principal object of the present invention to provide a vertical helical vibrating conveyor which shall include drying means whereby, various materials may be dried as they travel up theconveyor.
Other objects will appear as the description proceeds.
To the accomplishments of the foregoing and related ends, the invention then comprises the features hereinafter fully described and particularly pointed out in the claims, the following description and the annexed drawings setting forth in detail certain illustrative embodiments of the invention, these being indicative, however, of but a few of the various ways in which the principle of the invention may rbe employed.
In said annexed drawings: s
Fig. 1 is a transverse sectional view of an embodiment of the present invention;
Fig. 2 is a top plan view of Fig. 1; and
Fig. 3 is a. part sectional, side elevational view of the conveyor drier with the feeder hopper and hot air supply in position.
Referring more specically to the drawings I indicates a vertical vibrating conveyor of the throw type. Vibrating conveyor I is moveably mounted upon base I5 as by upwardly extending coil spring I6. I8 is a motor which may be mounted on or adjacent to base I5 and connected to vibrating conveyor I by shaft I9. It will be understood that any suitable eccentric or vibrating means may be associated with conveyor I, the details of which form no part of the present invention. It will readily be seen from the annexed drawings that vibrating conveyor I has upstanding sides forming a trough thus preventing the material which is being dried from drifting off the conveyor.
I have found the conveyor-dryer of the present invention especially suited for such substances as porcelain enamel. In the manufacture of porcelain enamel the raw ingredients are smelted in a high temperature smelter and the molten material is run into water and fritted. The frit then has to be thoroughly dried before packaging. In using the present invention the wet frit is placed into hopper I3 and fed into the conveyor-drier as by feeder I4. The wet frit enters at the bottom of the vertical vibrating conveyor I and is conveyed upwardly. Hot air enters the conveyor-drier through inlet 3 and ows downwardly countercurrent to the ow of the material being dried. The air is exhausted `at the bottom of the conveyor-drier at outlet 9. The outlet 9 is connected to exhaust fan II and the air is partially returned to heater unit I0 and partially exhausted through stack I2. I have found that if the frit to be dried is conveyed at a rate of about 25 feet per minute the air should enter the conveyor-drier at about 500 F. and moved at the rate of aboutv 2900 C. F. M. Under these conditions about of the air is recirculated through heater Ill and the remainder exhausted through stack I2. It is to be understood that the foregoing conditions are only one typical example of temperature and air velocity. It will readily be seen by those skilled in the art of drying that the air temperature and velocity may be varied according to the material to be dried and the amount of production desired.
It is important to note here the significance of the vertical helical bafe 2. The heater air entering inlet 3 comes into contact with baffle 2. Thus the air instead of flowing straight down the conveyor-drier is forced to flow countercurrent over the top of the moving material. As the material moves up the vibrating-conveyor it is thrown up off the bed of the conveyor. The heated air which is forced by baffle 2 to follow the helical path of the conveyor comes into intimate contact with substantially all of the surfaces of the material and thus more eiliciently effects drying. The outer wall of the conveyordrier is covered with insulation 1 and thus prevents loss of heat through the Wall.
The top portion of the helical conveyor as best shown at 8 in Fig. 1 comprises a scalping screen 4. The material of the proper particle size drops through screen 4 and is discharged through discharge spout 5. The oversize material is carried on screen 4 to discharge spout 6.
It will now be readily seen that my present invention has several particular advantages over prior art practices of conveying and drying. First my invention permits the simultaneous movement of the material to packaging equipment or storage while it is being dried; secondly, the particle size of the material can be readily controlled; and thirdly the apparatus is relatively simple in construction and operation and consumes considerably less floor space than prior conveyors and dryers. One other outstanding feature of my device consists in the vertical helical baffle surrounding the vibrating-conveyor. This latter point is particularly advantageous for two reasons: first, since the heated air is forced to follow the path of the conveyor bed the drying is performed more efciently and secondly, the heated air entering at the top of the device allows drainage of excess water and thus eliminates the Waste of heat trying to dry oiT the excess water.
Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the feature stated in any of the following claims or the equivalent of such be employed.
I, therefore, particularly point out and distinctly claim as my invention:
1. In a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical baffle coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baille, and means for supplying heated air to said drying and conveying apparatus.
2. In a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical baffle coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baille and means for supplying heated air through the top of said device whereby the heated air ows countercurrent to the flow of material through said device.
3. In a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical baiile coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baille, means for enclosing said conveyor and baffle, means for supplying heated air through the top of said device and means for exhausting the heated air adjacent the bottom of said device whereby said heated air flows counter-current to the flow of material being dried in said device.
4. In a device for simultaneously drying and conveying including a vertical helical vibrating conveyor, a vertical helical baiile coaxial and of equal pitch with said conveyor, the outer edge of said conveyor abutting the inner edge of said baie, means for enclosing said conveyor and baffle, an inlet substantially adjacent the bottom of said conveyor for delivering material to be dried and an outlet substantially adjacent the top of said conveyor for discharging the dried material, means for supplying heated air through the top of said device and means for exhausting the heated air adjacent the bottom of said device whereby said heated air flows counter-current to the flow of said material being dried.
References Cited in the le of this patent UNITED STATES PATENTS Number Name Date Re. 22,904 Carrier, Jr Aug. 12, 1947 1,016,568 Landes Feb. 6, 1912 FOREIGN PATENTS Number Country Date 29,682 France Sept. 21, 1925 (2d addition to No. 469,434.) 446,468 Great Britain Apr. 30, 1936
US293408A 1952-06-13 1952-06-13 Conveyer-drier Expired - Lifetime US2688807A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742711A (en) * 1953-03-26 1956-04-24 Harry M Adams Article dryer
US2805841A (en) * 1956-04-04 1957-09-10 Armstrong Cork Co Cooling system for conveyors
US2832464A (en) * 1953-08-03 1958-04-29 Floyd E Smith Vibratory parts feeder
US2934830A (en) * 1957-04-25 1960-05-03 Zvejnieks Andrejs Method and an apparatus for drying of gypsum
DE1082607B (en) * 1956-11-09 1960-06-02 Metallgesellschaft Ag Device for cooling hot, small items
US2969111A (en) * 1955-04-26 1961-01-24 Bocognano Rene Joseph Process and apparatus for spraying and dehydrating suspensions in vacuo
US2983051A (en) * 1957-10-28 1961-05-09 Dravo Corp Apparatus for cooling particulate materials
US3058235A (en) * 1957-07-26 1962-10-16 Chain Belt Co Vibratory heat transfer apparatus
US3084450A (en) * 1959-05-29 1963-04-09 Hansen Friedrich Continuous drying apparatus including a vibrating helical conveyor
DE1152364B (en) * 1959-05-29 1963-08-01 Dr Friedrich Hansen Dryer with oscillating spiral conveyor
US3135429A (en) * 1960-11-07 1964-06-02 American Radiator & Standard Granular detergent dispenser
US3154621A (en) * 1961-04-18 1964-10-27 Chace Co W M Heat treating apparatus
US3340566A (en) * 1962-08-16 1967-09-12 Reynolds Metals Co Apparatus for the production of metal particles
US3380721A (en) * 1965-07-09 1968-04-30 Zd Normal Ussr Conveyor furnace for heat-treatment of parts
US3397768A (en) * 1966-06-03 1968-08-20 Clifford A. Haumiller Vibrational feeding devices
US3868213A (en) * 1973-10-25 1975-02-25 Valery Petrovich Shulika Vibration furnace
US4628834A (en) * 1981-10-14 1986-12-16 Mckelvie Alastair H Vibratory fluidized bed reactor
US4775284A (en) * 1986-12-02 1988-10-04 General Kinematics Corporation Vertical mass flow conveyor
US20050091868A1 (en) * 2003-10-17 2005-05-05 Nicem S.P.A. Machine with vibrating tank for drying and polishing cutlery
EP1702699A1 (en) * 2005-03-18 2006-09-20 Jöst GmbH + Co. KG Spiral cooler
WO2009141507A1 (en) * 2008-05-21 2009-11-26 Ccm-Power Oy Method for drying objects of organic material and a dryer
US9950870B2 (en) * 2012-01-20 2018-04-24 Mayfran International Vertical spiral conveyor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1016568A (en) * 1911-08-17 1912-02-06 William Landes Drier.
FR469434A (en) * 1913-05-20 1914-07-31 Georges Desaulles Apparatus for drying, kilning, humidifying and treating any products
FR29682E (en) * 1924-04-08 1925-09-21 Apparatus for drying, kilning, humidifying and treating any products
GB446468A (en) * 1935-09-11 1936-04-30 Robert Bennet Improvements in and relating to drying and/or cooling apparatus
USRE22904E (en) * 1947-08-12 Conveying and processing apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22904E (en) * 1947-08-12 Conveying and processing apparatus
US1016568A (en) * 1911-08-17 1912-02-06 William Landes Drier.
FR469434A (en) * 1913-05-20 1914-07-31 Georges Desaulles Apparatus for drying, kilning, humidifying and treating any products
FR29682E (en) * 1924-04-08 1925-09-21 Apparatus for drying, kilning, humidifying and treating any products
GB446468A (en) * 1935-09-11 1936-04-30 Robert Bennet Improvements in and relating to drying and/or cooling apparatus

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742711A (en) * 1953-03-26 1956-04-24 Harry M Adams Article dryer
US2832464A (en) * 1953-08-03 1958-04-29 Floyd E Smith Vibratory parts feeder
US2969111A (en) * 1955-04-26 1961-01-24 Bocognano Rene Joseph Process and apparatus for spraying and dehydrating suspensions in vacuo
US2805841A (en) * 1956-04-04 1957-09-10 Armstrong Cork Co Cooling system for conveyors
DE1082607B (en) * 1956-11-09 1960-06-02 Metallgesellschaft Ag Device for cooling hot, small items
US2934830A (en) * 1957-04-25 1960-05-03 Zvejnieks Andrejs Method and an apparatus for drying of gypsum
US3058235A (en) * 1957-07-26 1962-10-16 Chain Belt Co Vibratory heat transfer apparatus
US2983051A (en) * 1957-10-28 1961-05-09 Dravo Corp Apparatus for cooling particulate materials
US3084450A (en) * 1959-05-29 1963-04-09 Hansen Friedrich Continuous drying apparatus including a vibrating helical conveyor
DE1152364B (en) * 1959-05-29 1963-08-01 Dr Friedrich Hansen Dryer with oscillating spiral conveyor
US3135429A (en) * 1960-11-07 1964-06-02 American Radiator & Standard Granular detergent dispenser
US3154621A (en) * 1961-04-18 1964-10-27 Chace Co W M Heat treating apparatus
US3340566A (en) * 1962-08-16 1967-09-12 Reynolds Metals Co Apparatus for the production of metal particles
US3380721A (en) * 1965-07-09 1968-04-30 Zd Normal Ussr Conveyor furnace for heat-treatment of parts
US3397768A (en) * 1966-06-03 1968-08-20 Clifford A. Haumiller Vibrational feeding devices
US3868213A (en) * 1973-10-25 1975-02-25 Valery Petrovich Shulika Vibration furnace
US4628834A (en) * 1981-10-14 1986-12-16 Mckelvie Alastair H Vibratory fluidized bed reactor
US4775284A (en) * 1986-12-02 1988-10-04 General Kinematics Corporation Vertical mass flow conveyor
US20050091868A1 (en) * 2003-10-17 2005-05-05 Nicem S.P.A. Machine with vibrating tank for drying and polishing cutlery
EP1702699A1 (en) * 2005-03-18 2006-09-20 Jöst GmbH + Co. KG Spiral cooler
US20070125117A1 (en) * 2005-03-18 2007-06-07 Joest Gmbh + Co. Kg Vibratory Spiral Conveyor
WO2009141507A1 (en) * 2008-05-21 2009-11-26 Ccm-Power Oy Method for drying objects of organic material and a dryer
EP2324314A1 (en) * 2008-05-21 2011-05-25 Ccm-power Oy Method for drying objects of organic material and a dryer
US20110138647A1 (en) * 2008-05-21 2011-06-16 Ccm-Power Oy Method for drying objects of organic material and a dryer
JP2011521198A (en) * 2008-05-21 2011-07-21 セーセーエム−パワー オサケユイチア Drying method and dryer for drying an object made of an organic substance
US8863402B2 (en) 2008-05-21 2014-10-21 Ccm-Power Oy Method for drying objects of organic material and a dryer
EP2324314A4 (en) * 2008-05-21 2014-12-03 Ccm Power Oy Method for drying objects of organic material and a dryer
US9950870B2 (en) * 2012-01-20 2018-04-24 Mayfran International Vertical spiral conveyor
US10457488B2 (en) * 2012-01-20 2019-10-29 Mayfran International, Inc. Vertical spiral conveyor

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