US3925907A - Process and apparatus for cooling of fired or sintered material - Google Patents

Process and apparatus for cooling of fired or sintered material Download PDF

Info

Publication number
US3925907A
US3925907A US510438A US51043874A US3925907A US 3925907 A US3925907 A US 3925907A US 510438 A US510438 A US 510438A US 51043874 A US51043874 A US 51043874A US 3925907 A US3925907 A US 3925907A
Authority
US
United States
Prior art keywords
plates
movement
speed
grate
support
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
US510438A
Other languages
English (en)
Inventor
Otto Heinemann
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Polysius 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
Priority claimed from DE19732350811 external-priority patent/DE2350811C3/de
Application filed by Polysius AG filed Critical Polysius AG
Application granted granted Critical
Publication of US3925907A publication Critical patent/US3925907A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/38—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements for effecting intermittent movement of belts or chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates

Definitions

  • ABSTRACT Foreign Application Priority Data Fired or sintered material supported on a continuously Oct. 10, 1973 Germany 2350811 travelling grate composed of successive individual plates is cooled by passing air between the plates and [52] US. Cl. 34/20; 34/31; 266/21; through the material. At periodic intervals the speed 432/134; 432/137 of movement of adjacent plates is accelerated and de- [51] Int. Cl. F2611 7/00; F278 9/14 celerated with respect to the rate of travel of the [58] Field of Search 34/20, 31; 432/134, 137; grate.
  • PROCESS AND APPARATUS FOR COOLING F FIRED 0R SINTERED MATERIAL This invention relates to methods and apparatus for the cooling of fired or sintered material resting as a layer on a continuously moved air-permeable support surface. Cooling of the material is effected by the passing of cooling air through the support surface and the layer of material.
  • the object of this invention is to avoid these disadvantages by providing methods and apparatus which achieve good distribution of the material on the continuously moved air-permeable support surface, uniform passage of air through the layer of material, and hence an excellent cooling effect.
  • this objective is achieved by the provision of individual areas of the support surface which are intermittently given an extra positive or negative movement superimposed on the continuous movement, so that adjacent areas of the support surface have a periodically varying different resultant rate of movement.
  • the individual particles of material are given a periodic and locally varying further movement which causes the layer of material to be made uniform, but prevents the cooling air only passing through preferred flow channels, and hence ensures that the cooling air has a uniform cooling effect on all the material.
  • the method provided by the invention is thus marked by high cooling efficiency and particularly uniform cooling of all the material.
  • the air-permeable support surface is formed by at least one grate band which includes a plurality of grate plates which are driven by continuously moved chain members, then in accordance with a preferred embodiment of the invention at least some grate plates are movable to a limited extent relative to the chain members, by means of additional drive elements.
  • the areas of the grate band with periodically variable rates of movement, with different resultants can extend over the entire width or over part of the width, and also over the entire length or over part of the length of the grate band.
  • travelling grate e.g. inclination of conveyor device, number of grate bands
  • type of air feed e.g. single or double air feed
  • intermediate or subsequent crushers etc.
  • FIG. 1 is a side elevational view of a typical portion of the grate band.
  • FIG. 2 is an enlarged, isometric view of a pair of adjacent grate plates of the band.
  • the travelling grate used for the cooling of fired or sintered material comprises a grate band 1 consisting of a number of grate plates (e.g. 2, 3, 4, 2', 3, 4' etc) in overlapping relation with gaps therebetween to form an air-permeable, straight support surface.
  • the plates can be driven continuously by chain links 5 through driving bolts 6.
  • the grate plates are provided with coupling means comprising a driver holder 7 and a guide 8 which embrace succeeding driving bolts 6 in the manner shown in the drawing.
  • the arrangement is such that the individual grate plates (e. g. 2) are capable of lost motion longitudinally of the grate band to a limited degree relative to the chain links 5, to the extent that the inner length of the driver holder 7 is greater than the diameter of the driving bolt 6.
  • extra drive elements are provided in the form of chain drums 10, 10' which rest on support track shafts ll, 11', said shafts deriving their drive from the chain links 5 by means of driving drums (not shown).
  • the dimensions of these driving drums and of the chain drums 10, 10' are so chosen that in the area of their forward engaging surfaces 13, 13 the teeth 12, 12 of the chain drums It), 10 impart to the grate plates a slightly higher speed V than the speed of movement V of the chain links 5, while the backs 14, 14 of the teeth 12, 12' give the following grate plate (insofar as this was advanced, e.g.
  • FIG. 2 shows the engaging of adjacent grate plates 3, 4.
  • Driver holder 7 provided with a web 21 is secured with an arm 20 by means of rivets 22.
  • Spaced guides 8 are secured with a member 24 by means of legs 23 and rivets 25.
  • Driver holder 7 fits between both guides of the adjacent grate plate and is guided by these means.
  • the grate plates are given intermittently i.e., as long as they are within the operating range of the chain drums 10 or 10 extra movements which are superimposed on the continuous conveyor movements of the chain links 5 to reduce or enlarge their speed relative to the chain speed for a specific period of time, and are finally conveyed a further length of route at the chain speed, before the described cycle recommences.
  • Apparatus adapted for use in the cooling of fired or sintered material comprising a plurality of grate plates fitted to, one another and together. forming a grate band having an air permeable support surface on which a layer of such material may rest; drive means movable in one direction; lost motion means coupling said grate plates to said drive means whereby said grate plates and said drive means are capable of relative movement; and additional driving means engageable with selected ones of said grate plates during their movement by said drive means for varying the rate of speed of said selected ones of said grate plates relative to the rate of speed of said drive means.
  • said coupling means comprises a holder carried by each of said plates and a driver member extending through said holder, said driver member being movable relatively to said holder in the direction of movement of said band.
  • said additional driving means comprises a rotary driving drum having teeth engageable with said selected plates.
  • each of said teeth extends radially from said drum for insertion between adjacent ones of said plates.
  • each of said teeth has first and second surfaces engageable with leading and trailing plates, respectively, at different radial distances from the axis of rotation of said drum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
US510438A 1973-10-10 1974-09-30 Process and apparatus for cooling of fired or sintered material Expired - Lifetime US3925907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732350811 DE2350811C3 (de) 1973-10-10 Verfahren und Vorrichtung zum Kühlen von Gut

Publications (1)

Publication Number Publication Date
US3925907A true US3925907A (en) 1975-12-16

Family

ID=5895001

Family Applications (1)

Application Number Title Priority Date Filing Date
US510438A Expired - Lifetime US3925907A (en) 1973-10-10 1974-09-30 Process and apparatus for cooling of fired or sintered material

Country Status (8)

Country Link
US (1) US3925907A (da)
JP (1) JPS538521B2 (da)
BR (1) BR7408389D0 (da)
CH (1) CH575109A5 (da)
DK (1) DK135246C (da)
FR (1) FR2247690B1 (da)
GB (1) GB1461315A (da)
IT (1) IT1022725B (da)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091750A (en) * 1976-03-13 1978-05-30 Polysius Ag Grate plate arrangement for a travelling grate
US4991315A (en) * 1988-10-17 1991-02-12 Sprout-Bauer, Inc. Horizontal pellet cooler with improved support tray
US5836758A (en) * 1996-01-25 1998-11-17 Krupp Polysius Ag Reciprocating grate for the treatment of bulk material
CN101445186B (zh) * 2008-12-26 2011-06-22 沈峰 链节输送带
CN109095150A (zh) * 2018-10-29 2018-12-28 湖南精正设备制造有限公司 一种长距离运输的传动精度高的工位运输装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630502A (en) * 1969-04-18 1971-12-28 Dravo Corp Apparatus for the thermal treatment of solids
US3666254A (en) * 1969-05-30 1972-05-30 Koppers Gmbh Heinrich Sintering machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630502A (en) * 1969-04-18 1971-12-28 Dravo Corp Apparatus for the thermal treatment of solids
US3666254A (en) * 1969-05-30 1972-05-30 Koppers Gmbh Heinrich Sintering machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091750A (en) * 1976-03-13 1978-05-30 Polysius Ag Grate plate arrangement for a travelling grate
US4991315A (en) * 1988-10-17 1991-02-12 Sprout-Bauer, Inc. Horizontal pellet cooler with improved support tray
US5836758A (en) * 1996-01-25 1998-11-17 Krupp Polysius Ag Reciprocating grate for the treatment of bulk material
CN101445186B (zh) * 2008-12-26 2011-06-22 沈峰 链节输送带
CN109095150A (zh) * 2018-10-29 2018-12-28 湖南精正设备制造有限公司 一种长距离运输的传动精度高的工位运输装置
CN109095150B (zh) * 2018-10-29 2024-05-14 湖南精正设备制造有限公司 一种长距离运输的传动精度高的工位运输装置

Also Published As

Publication number Publication date
JPS5065404A (da) 1975-06-03
IT1022725B (it) 1978-04-20
FR2247690A1 (da) 1975-05-09
JPS538521B2 (da) 1978-03-29
DK135246C (da) 1977-10-03
BR7408389D0 (pt) 1975-09-23
DE2350811A1 (de) 1975-04-17
FR2247690B1 (da) 1976-12-31
DE2350811B2 (de) 1975-08-14
CH575109A5 (da) 1976-04-30
GB1461315A (en) 1977-01-13
DK508374A (da) 1975-06-09
DK135246B (da) 1977-03-21

Similar Documents

Publication Publication Date Title
US2848096A (en) Straightening-out and aligning of articles
US4394899A (en) Article grouping apparatus
US4192636A (en) Apparatus for stretching dough material
US3832788A (en) Process and device for cooling hot-rolled wire rods
JPH0525789B2 (da)
US3925907A (en) Process and apparatus for cooling of fired or sintered material
JPH069100A (ja) 板材に用いられる送り装置
JPH06305552A (ja) 傷つき易い小片製品を導入する方法とその装置
CA1227165A (en) Article reassorting apparatus
JPH0129605B2 (da)
EP0668214B1 (en) Belt conveyor device, for groups of delicate rod-shaped objects, especially in cigarette packagiung machines
US5131937A (en) Device for aligning glazing panes during transport on a roller conveyor
US4018006A (en) Spinning jet blasting plant for cleaning shaped workpieces
US4455189A (en) Sheet joining apparatus
US3289815A (en) Device for automatic feeding of dough from a conveyor to a receiving station
US3631574A (en) Conveyors
JPH057285B2 (da)
US3735532A (en) Workpiece treating apparatus
US3976254A (en) Machine for granulating strands of material
JP4662229B2 (ja) クランクシャフト用連続式ブラスト装置
US4191519A (en) Dough-rounding machine
JP2664752B2 (ja) ベルト間によって加圧成形する成形機におけるベルト矯正方法及びその装置
GB1469012A (en) Method and apparatus for forming a yarn web on a conveyor
US4077166A (en) Apparatus for continuously conveying and simultaneously turning objects of arbitrary shape and size
CN220131185U (zh) 一种凹槽型棒段组合输送机构