US3871111A - Device for drying moist material to be ground - Google Patents

Device for drying moist material to be ground Download PDF

Info

Publication number
US3871111A
US3871111A US387105A US38710573A US3871111A US 3871111 A US3871111 A US 3871111A US 387105 A US387105 A US 387105A US 38710573 A US38710573 A US 38710573A US 3871111 A US3871111 A US 3871111A
Authority
US
United States
Prior art keywords
housing
hot air
twist
stray
dried
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 - Lifetime
Application number
US387105A
Other languages
English (en)
Inventor
Karl-Heinz Porr
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.)
Gebr HISCHMANN MASCHINENFABRIK
Original Assignee
Gebr HISCHMANN MASCHINENFABRIK
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 Gebr HISCHMANN MASCHINENFABRIK filed Critical Gebr HISCHMANN MASCHINENFABRIK
Application granted granted Critical
Publication of US3871111A publication Critical patent/US3871111A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
    • F26B17/1433—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material
    • 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
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
    • F26B17/1433—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material
    • F26B17/1466—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material the members or bodies being in movement
    • F26B17/1483—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material the members or bodies being in movement the movement being a rotation around a vertical axis

Definitions

  • ABSTRACT hot air is, through a twist ring adjacent the outlet in a helical manner, introduced into the interior of the housing and is withdrawn fromthe housing at the upper region thereof.
  • the device according to the present invention is furthermore characterized in that the material to be ground is charged onto at least one rotating stray dish which distributes the material over the entire flow cross section with a twist which is opposite to the twist of the hot air flow.
  • the present invention relates to a device for drying moist material to be ground, especially pit moist limestone and clay, in a housing, the upper portion of which has an inlet pipe and the lower portion of which has an outlet for the ground material, said housing also being provided with a funnel-shaped inwardly extending guiding surface.
  • the interior of said housing is adapted I to be supplied with hot air.
  • a drying device of the above mentioned type it is an object of the present invention to provide a device for drying moist material to be ground which will assure a uniform distribution of the material to be ground over the entire flow cross section and will assure an as long as possible staying of the material to be ground within the housing to be supplied with hot air, in order to obtain a highly satisfactory drying.
  • FIG. 1 is a longitudinal section through a first embodiment of a drying device according to the present invention.
  • FIG. 2 represents a top view of the design according to FIG. 1.
  • FIG. 3 is a cross section through the lower portion of the device of FIG. 1, said section being taken along the line Ill-Ill of FIG. 1.
  • FIG. 4 is a longitudinal section through a second embodiment of a drying device according to the invention.
  • FIG. 5 is a top view of the embodiment of FIG. 4.
  • FIG. 6 represents a longitudinal section through a third embodiment of the invention.
  • FIG. 7 is a top view of the device of FIG. 6.
  • FIG. 8 represents a cross section through the upper portion of the device according to FIG. 6, said section being taken along the line VIII-VIII of FIG. 6.
  • the device according to the present invention is characterized primarily in that the hot air is introduced along a helical path into the interior of the housing through a twist ring arranged at the outlet and is withdrawn from the upper range of the housing, said device furthermore being characterized in that the material to be ground is charged onto a rotating stray dish which distributes the material to be ground over the entire cross-sectional surface with a twist which is opposite to the twist of the hot air flow.
  • housing is widening below the funnel-shaped drawn-in guiding surface and is subsequently increasing in diameter toward the outlet, while in this region a stationary double cone is provided as guiding body. In this way, a particularly good contact of the material predried in the upper region of the housing with the fresh hot air will be obtained.
  • a plurality of funnel-shaped narrowing guiding surfaces and at least two stray dishes may be arranged one below the other and respectively within the region of the maximum diameter. According to the invention it is possible to drive the stray dishes independently of each other and at different speeds.
  • the charging of the material to be ground may be effected through the hollow shaft of the upper stray dish.
  • the hollow shaft is preferably provided with a supply pipe for supplying the material to be ground.
  • the diameter of the housing in the upper portion may be shorter than in the intermediate part in order to compensate for the differences in the specific weight.
  • adjustable impact plates may be arranged on the funnelshaped guiding surfaces, said impact plates being adapted to generate an intensive turbulence inthe interior of the housing. If the stray dishes in addition to distributing the material are intended simultaneously to bring about a certain crushing of the material, the stray dishes may, according to the invention, comprise individual beater arms.
  • the twist ring With regard to the supply of air, it is suggested according to the invention to arrange the twist ring within a spiral-shaped air supply housing and to provide said ring with adjustable guiding blades so that the air which by an air generator not forming part of the drying device is supplied in hot condition to the housing with the necessary twist.
  • the outlet of the hot air in the upper portion of the housing is expediently effected in the direction of the twist to which end there are provided air outlet housings designed accordingly.
  • FIGS. 1 3 The first embodiment of the device for drying moist material to be ground is illustrated in FIGS. 1 3 and comprises primarily a cylindrical housing 1 provided with funnel-shaped inwardly extending guiding surfaces 2.
  • the supply of the material to be ground is effected through a stationary inlet pipe 3, whereas the outlet of the ground material is effected through a discharge 4.
  • the material to be ground is charged onto a first stray dish 5 which together with the second stray dish 6 is connected to a shaft 8.
  • Shaft 8 is driven through a belt transmission by a motor 7.
  • Both stray dishes 5 and 6 are arranged within the region of the greatest diameter of housing 1, and more specifically, above a funnelshaped narrowing guiding surface 2.
  • a stationary double cone 9 In the lower portion of housing 1 which narrows toward the outlet 4 in a likewise funnel-shaped manner there is arranged a stationary double cone 9.
  • the second embodiment according to FIGS. 4 and 5 differs from the preceding above mentioned embodiment merely in that the supply of material to be ground is effected centrally through the hollow shaft 8. To this end, within shaft 8 there is provided a supply pipe 13 for supplying the material.
  • the air employed for drying the material to be ground, leaves according to the second embodiment of the invention, the housing 1 in axial direction through two air exit connections 14. Finally, the housing is in the upper region provided with a shorter diameter than is the case in the intermediate range.
  • the stray dishes 5 and 6 are formed by individual beating arms 5a, 6a so that the stray dishes 5 and 6 exert a certain diminishing effect upon the material to be ground.
  • the beater arms 5a, 6a are arranged on separate shafts 8a, 8b respectively.
  • Each shaft 8a, 8b is operable independently of the other one so that it will be possible to employ not only different speeds but also different directions of rotation.
  • two additional impact plates are arranged on the funnel-shaped guiding surfaces 2.
  • the two additional impact plates 15 are adjustable as to height and can be rotated about their connecting axis. In view of these impact plates 15, an additional turbulence is created between the material to be ground and the hot air.
  • a device for drying moist material to be ground, especially pit moist lime and clay which includes a housing having an upper portion with inlet means for conveying material to be dried into the interior of said housing and also having a lower portion with central outlet means for discharging dried material from said housing, twist ring means including a helical guiding path and arranged adjacent said outlet means for introducing hot air into said housing in countercurrent flow to the flow of material to be dried, rotatable stray dish means arranged within said housing for receiving and distributing the material to be dried with a twist opposite to the twist of the hot air flow, said rotatable stray dish means including means for driving connection with a motor, hot air discharge means arranged at the upper portion of said housing for discharging hot air from said housing, and funnel-shaped downwardly tapering guiding surface means arranged in the interior of said housing for guiding the material to be dried from the upper portion of said housing through the latter and for conveying hot air in countercurrent flow to the flow of material to be dried to said hot air discharge means, said
  • a device in which the lower portion of said housing is provided with a spiral-shaped air supply housing, and in which said twist ring means is arranged within said air supply housing and is provided with adjustable guiding blades.
  • said hot air discharge means includes a spiral-shaped discharge housing extending in the direction of the twist to be imparted upon the hot air.
  • a device which includes motor driving means respectively connected to each of said stray dishes for driving the same independently of each other and selectively at different speeds.
  • a device in which said stray dish means include individual beater arms.
  • a device which includes impact plates adjustably arranged on said funnel-shaped guiding surface means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
US387105A 1972-08-09 1973-08-09 Device for drying moist material to be ground Expired - Lifetime US3871111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2239098A DE2239098A1 (de) 1972-08-09 1972-08-09 Vorrichtung zum trocknen von feuchtem mahlgut

Publications (1)

Publication Number Publication Date
US3871111A true US3871111A (en) 1975-03-18

Family

ID=5853078

Family Applications (1)

Application Number Title Priority Date Filing Date
US387105A Expired - Lifetime US3871111A (en) 1972-08-09 1973-08-09 Device for drying moist material to be ground

Country Status (3)

Country Link
US (1) US3871111A (de)
JP (1) JPS4959343A (de)
DE (1) DE2239098A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976018A (en) * 1975-02-14 1976-08-24 William Paul Boulet Dryer system
US4051602A (en) * 1975-07-04 1977-10-04 Klockner-Humboldt-Deutz Aktiengesellschaft Kiln for the thermal treatment of slurry type materials such as magnesite
EP0246308A1 (de) * 1985-11-18 1987-11-25 Ve Holding Corp Verfahren und vorrichtung zur behandlung von teilchenmaterial.
US4828997A (en) * 1985-08-30 1989-05-09 Hitachi, Ltd. Apparatus and process for producing gel beads of microbial cells or enzymes
US6282809B1 (en) 1999-12-15 2001-09-04 Articare As Vane assembly for drying apparatus
US6393721B1 (en) 1998-04-23 2002-05-28 Articare As Drying apparatus
CN1323273C (zh) * 2003-11-28 2007-06-27 范广权 一种制备干燥硼泥的设备及其工艺方法
US20140190031A1 (en) * 2011-06-17 2014-07-10 Kabushiki Kaisha Kinki Crushing Drying Device
CN112827932A (zh) * 2021-01-11 2021-05-25 湖北绿满园农业股份有限公司 一种具有烘干功能的大米浸润清洗装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1653332A (en) * 1924-10-21 1927-12-20 Baechler Kiser & Cie Vertical drying and dehydrating apparatus
US2049199A (en) * 1933-11-28 1936-07-28 John F Dornfeld Drying apparatus
US2400194A (en) * 1943-09-30 1946-05-14 Universal Oil Prod Co Method for contacting fluids with finely divided solid particles
US3423840A (en) * 1965-10-21 1969-01-28 Dorr Oliver Inc Cone tray heat exchanger
US3495949A (en) * 1965-08-28 1970-02-17 Peter Niedner Device for mixing gases,liquids or finely grained solids with a carrier gas and for the manufacture of reaction products
US3566582A (en) * 1969-04-04 1971-03-02 Entoleter Mass contact between media of different densities
US3728239A (en) * 1970-07-01 1973-04-17 Commw Oil Refining Co Inc Catalyst stripping in a baffled vertical vessel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1653332A (en) * 1924-10-21 1927-12-20 Baechler Kiser & Cie Vertical drying and dehydrating apparatus
US2049199A (en) * 1933-11-28 1936-07-28 John F Dornfeld Drying apparatus
US2400194A (en) * 1943-09-30 1946-05-14 Universal Oil Prod Co Method for contacting fluids with finely divided solid particles
US3495949A (en) * 1965-08-28 1970-02-17 Peter Niedner Device for mixing gases,liquids or finely grained solids with a carrier gas and for the manufacture of reaction products
US3423840A (en) * 1965-10-21 1969-01-28 Dorr Oliver Inc Cone tray heat exchanger
US3566582A (en) * 1969-04-04 1971-03-02 Entoleter Mass contact between media of different densities
US3728239A (en) * 1970-07-01 1973-04-17 Commw Oil Refining Co Inc Catalyst stripping in a baffled vertical vessel

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976018A (en) * 1975-02-14 1976-08-24 William Paul Boulet Dryer system
US4051602A (en) * 1975-07-04 1977-10-04 Klockner-Humboldt-Deutz Aktiengesellschaft Kiln for the thermal treatment of slurry type materials such as magnesite
US4828997A (en) * 1985-08-30 1989-05-09 Hitachi, Ltd. Apparatus and process for producing gel beads of microbial cells or enzymes
EP0246308A1 (de) * 1985-11-18 1987-11-25 Ve Holding Corp Verfahren und vorrichtung zur behandlung von teilchenmaterial.
EP0246308A4 (de) * 1985-11-18 1988-04-13 Ve Holding Corp Verfahren und vorrichtung zur behandlung von teilchenmaterial.
US6393721B1 (en) 1998-04-23 2002-05-28 Articare As Drying apparatus
US6282809B1 (en) 1999-12-15 2001-09-04 Articare As Vane assembly for drying apparatus
CN1323273C (zh) * 2003-11-28 2007-06-27 范广权 一种制备干燥硼泥的设备及其工艺方法
US20140190031A1 (en) * 2011-06-17 2014-07-10 Kabushiki Kaisha Kinki Crushing Drying Device
US9234701B2 (en) * 2011-06-17 2016-01-12 Kabushiki Kaisha Kinki Crushing drying device
CN112827932A (zh) * 2021-01-11 2021-05-25 湖北绿满园农业股份有限公司 一种具有烘干功能的大米浸润清洗装置
CN112827932B (zh) * 2021-01-11 2022-01-18 襄阳田园乐活米业有限公司 一种具有烘干功能的大米浸润清洗装置

Also Published As

Publication number Publication date
DE2239098A1 (de) 1974-02-21
JPS4959343A (de) 1974-06-08

Similar Documents

Publication Publication Date Title
US3871111A (en) Device for drying moist material to be ground
US4754934A (en) Vertical grinding mill
US2460008A (en) Concurrent flow drier with rotor, stationary casing, and terminal separation means for drying materials and drying fluid
US2538833A (en) Apparatus for drying or calcining materials
CN106413907A (zh) 实体鼓壁式螺旋离心机及其运行方法
GB994280A (en) Grinding mill and process of grinding
US2100907A (en) Apparatus for manufacturing dried feed
US3789513A (en) Pneumatic dryers
US2164409A (en) Fine grinding
KR19990014849A (ko) 통기식 회전 건조기
US426361A (en) Rich august buttner
US2149018A (en) Drying apparatus
US1394294A (en) Grinding in ball-mills
CN102599239A (zh) 谷物烘干机及谷物烘干系统及谷物烘干系统的使用方法
US309485A (en) Munzinger
US3178830A (en) Pneumatic drier of the two-biconical drying chamber type
US4083500A (en) Tube mill
AU614347B2 (en) Flight arrangement for rotary drum dryers
US3877650A (en) Partition for tumbling mills or the like
US772077A (en) Tubular ball-mill.
US965558A (en) Centrifugal separator.
US1014122A (en) Grain-drier.
US2119790A (en) Apparatus for manufacturing dried feed
US3596368A (en) Arrangement for preheating of pulverulent materials particularly of cement raw material
CN217900427U (zh) 一种甲酸钙生产闪蒸干燥器