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WO2006070058A1 - Equipement de traitement d'une matiere en poudre ou pulverulente - Google Patents

Equipement de traitement d'une matiere en poudre ou pulverulente Download PDF

Info

Publication number
WO2006070058A1
WO2006070058A1 PCT/FI2005/000556 FI2005000556W WO2006070058A1 WO 2006070058 A1 WO2006070058 A1 WO 2006070058A1 FI 2005000556 W FI2005000556 W FI 2005000556W WO 2006070058 A1 WO2006070058 A1 WO 2006070058A1
Authority
WO
WIPO (PCT)
Prior art keywords
discharge orifice
table feeder
equipment
closing plate
feed funnel
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.)
Ceased
Application number
PCT/FI2005/000556
Other languages
English (en)
Inventor
Tom RÖNNBERG
Harri Louhelainen
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.)
Outokumpu Oyj
Metso Corp
Original Assignee
Outokumpu Oyj
Outokumpu Technology Oyj
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 Outokumpu Oyj, Outokumpu Technology Oyj filed Critical Outokumpu Oyj
Publication of WO2006070058A1 publication Critical patent/WO2006070058A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02—Devices for feeding articles or materials to conveyors
    • B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
    • B65G47/12—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
    • B65G47/14—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
    • B65G47/1407—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a container, e.g. a bowl
    • B65G47/1442—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a container, e.g. a bowl by means of movement of the bottom or a part of the wall of the container
    • B65G47/1457—Rotating movement in the plane of the rotating part
    • 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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02—Devices for feeding articles or materials to conveyors
    • B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
    • B65G47/18—Arrangements or applications of hoppers or chutes
    • B65G47/19—Arrangements or applications of hoppers or chutes having means for controlling material flow, e.g. to prevent overloading
    • 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
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/042—Granular material

Definitions

  • the present invention relates to equipment and method for treating powderous or pulverous material. More precisely, the invention relates to equipment placed underneath the discharge orifice of a silo or a corresponding tank, said equipment being operated in connection with said discharge orifice, including a method for treating powderous or pulverous material stored in a silo or the like.
  • Table feeders are generally used for feeding various powderous or pulverous materials from a silo or a corresponding tank.
  • the purpose of table feeders is to ensure an even material flow for the material stored in the silo when taking the material out and transferring it further in the process.
  • a table feeder is installed to rotate underneath the funnel-like discharge orifice located at the bottom end of the silo, so that the material is discharged in an even flow from the silo onto the table, from where it is removed to be further treated in the process.
  • This kind of prior-art table feeder is known for instance from the publication
  • the publication US 3 369 645 introduces a table feeder that is meant for the treatment of powderous material.
  • the table feeder is rotated by intermediation of a ring gear located on the circumference of a planar table and by means of an electric motor.
  • Material is fed from a silo onto the planar table feeder through a discharge orifice.
  • the quantity of the material fed onto the table feeder is adjusted by means of a vertically moving collar that adjusts the opening between the planar surface of the table feeder and the orifice of the silo, and hence the discharge velocity of the material discharged onto the table.
  • the adjusting is carried out by means of bolts located outside the collar, either by tightening or by loosening them.
  • the material is removed from the table by means of a control element onto a belt conveyor proceeding underneath the table.
  • the control element is moved by a pushbar and an electric motor, and it is pivotally attached at one edge on the outer circumference of the table.
  • the problem with prior art table feeders is that they are easily blocked in case the material under treatment is cloddy or for some reason contains larger particles among the otherwise homogeneous material.
  • the material under treatment may be fairly wearing for those table feeder parts that get into direct contact with the material.
  • the sticking of the material onto the surface material of the equipment hinders the operation of the equipment and may cause a blockage in the whole system.
  • the rotation mechanism suggested in the publication US 3 369 645 requires continuous maintenance. In this prior art arrangement, the starting torque is too low, particularly in a start-up after a stoppage, which means that the wet material is packed against the feeder.
  • the object of the invention is to provide a new, inventive, maintenance-free and operationally reliable equipment for treating powderous or pulverous material.
  • Another object of the invention is to provide a new and inventive method for the treatment of powderous or pulverous material.
  • figure 1 is a general illustration of the equipment according to the invention
  • figure 2 is a side-view illustration of a preferred embodiment of the mechanism of the discharge orifice
  • figure 3 is a side-view illustration of a preferred embodiment of the mechanism of the discharge orifice
  • figure 4 illustrates the adjustable collar of the feed funnel.
  • FIG 1 shows a general illustration of the equipment according to the invention, seen diagonally from the top, for treating powderous or pulverous material.
  • the equipment is suited for the feeding difficult substances, such as finely divided chromite, from a silo or a corresponding storage tank.
  • the equipment comprises a feed funnel 1 , which is placed for example underneath the silo funnel discharge orifice (not illustrated).
  • the feed funnel 1 and the silo funnel are advantageously interconnected for instance by a flange joint.
  • the connecting flange 2 of the feed funnel 1 is shown in figure 1. As the silo is filled up, the material under treatment rests directly against the table feeder 3 arranged underneath the feed funnel 1.
  • a scraper 4 that guides the material discharged through the discharge orifice 5 of the feed funnel 1 away from the rotary table feeder 3, for example onto a band conveyor (not illustrated) proceeding along the side of the equipment, which belt conveyor then conveys the material further in the process.
  • the discharge orifice 5 of the feed funnel 1 is mainly located behind the edge 6.
  • the table feeder 3 there is arranged its actuating equipment 7, advantageously including an electric motor 8 and a gear system 9.
  • the table feeder 3 is advantageously rotated at the axis connected to the center point thereof.
  • the whole equipment is preferably arranged on top of a foundation 11 , so that possible maintenance steps are easier to perform.
  • the feed table 3 includes lifting lugs 12.
  • the feed table 3 can be suspended from the lifting lugs 12 by means of pulleys, to hang from the bottom part structures of the silo, so that the gear system 9 is easily and quickly replaced, only by pulling it away from underneath the feed table 3, when the gear system is damaged or needs maintenance. Thus the down time can be cut shorter.
  • the number of the lifting lugs 12 is 2 - 8, but preferably there are 4 of them. The existence of the lifting lugs 12 makes it possible to replace the gear system 9 without emptying the silo, which is particularly advantageous.
  • a closing plate 14 is fastened, by hinges arranged at its top edge, to the discharge orifice 5.
  • the closing plate 14 is provided with a connected counterweight 15 that tends to close the closing flap by gravity. By means of the counterweight 15, the quantity of the material discharged through the discharge orifice 5 can be adjusted. The mechanism is described in more detail below, in connection with figure 2.
  • Another preferred embodiment is to use a spring that in similar fashion regulates the opening of the closing plate 14.
  • the spring is mounted for example in the middle of the closing plate 14 in the vertical direction and connected to the respective spot at the edge of the discharge orifice 5 of the feed funnel.
  • This embodiment is described in more detail in figure 3.
  • a discharge orifice 5 operated by either of the methods described above is not blocked, in case the material under treatment includes clods or other larger particles. If a problematic object like this enters the discharge orifice 5, the orifice is capable of adjusting to the situation and letting the object through automatically, so that the discharge orifice 5 is not blocked, and the clod does not disturb the evenly proceeding material flow.
  • the quantity of the material flow can also be adjusted by an adjustable bottom skirt 16 attached to the bottom of the stationary top part, i.e. to the bottom of the feed funnel 1.
  • an adjustable bottom skirt 16 attached to the bottom of the stationary top part, i.e. to the bottom of the feed funnel 1.
  • the inner surface 17 of the feed funnel 1 , the scraper blade 4 and the closing plate 14 of the discharge orifice 5 are preferably coated, at least in those parts that get into contact with the material under treatment. This increases the operational reliability of the equipment and improves the evenness of the material flow as well as reduces the need for maintenance.
  • the agents used for coating can be different known coating materials, such as Chemflake special paint, Polyglass VEF coating or for example ceramic plates or Hardox wear plates.
  • FIG. 2 The operation of the mechanism of the discharge orifice 5 is described in more detail in figure 2.
  • a closing plate 14 hinged at the top edge, which closing plate 14 is opened as the material 18 is pressed against it when the feed table 3 rotates.
  • the quantity of the material 18 discharged through the discharge orifice 5 is adjusted by the rotation speed of the feed table 3 as well as by the opening of the closing plate 14 and by an adjustable bottom skirt (not illustrated in figure 2).
  • the opening of the closing plate 14 is affected by means of replaceable counterweights 15 connected thereto, which counterweights tend to close the discharge orifice 5.
  • the minimum opening of the discharge orifice 5 is adjusted by the length of a wire 20 connected to the support rod 19 of the counterweight 15 or by some corresponding means.
  • the wire 20 can also be connected directly to the counterweight 15.
  • Figure 3 illustrates another preferred embodiment.
  • the quantity of the material 18 is adjusted by a similar closing plate 14 as in the mechanism illustrated in figure 2.
  • the opening of the closing plate 14 is affected by means of a spring 21 , and the size of the minimum opening is adjusted by means of the fastening 22 of an adjusting screw attached at the edge of the discharge orifice 5 and by the adjusting screw 23 itself.
  • the counterpiece 24 of the adjusting screw 23 is mounted on the side of the closing plate 14.
  • the adjusting screw 23 can also be mounted so that it rests directly against the closing plate 14 without a separate counterpiece .
  • the spring 21 is arranged between the closing plate 14 and the edge of the discharge orifice 5, but it should be understood that it may also be located somewhere else, for example in connection with the hinges 25 of the closing plate.
  • FIG 4 is a more detailed illustration of how the bottom skirt 16 of the feed funnel 1 is adjusted.
  • a simple adjusting mechanism by which the location of the bottom skirt 16 with respect to the surface of the feed table 3 can be adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

L'invention se rapporte à un équipement permettant de traiter une matière en poudre ou pulvérulente (18), ledit équipement comprenant un entonnoir d'alimentation (1) doté d'un orifice de décharge (5) pour la matière (8), un dispositif d'alimentation à plateau (3) susceptible de tourner autour de son point central, un actionner conçu pour faire tourner le dispositif d'alimentation à plateau (3), et une lame racleuse (4) conçue pour guider la matière (18) de manière à l'éloigner du dispositif d'alimentation à plateau (3); l'équipement comprend également une plaque de fermeture (14) pour l'orifice de décharge (5), et un mécanisme de fermeture connecté à la plaque de fermeture (14). En outre, l'invention se rapporte à un procédé correspondant de traitement d'une matière en poudre ou pulvérulente (18).
PCT/FI2005/000556 2004-12-30 2005-12-29 Equipement de traitement d'une matiere en poudre ou pulverulente Ceased WO2006070058A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20041684 2004-12-30
FI20041684A FI118123B (fi) 2004-12-30 2004-12-30 Laitteisto ja menetelmä jauhemaisen materiaalin käsittelemiseksi

Publications (1)

Publication Number Publication Date
WO2006070058A1 true WO2006070058A1 (fr) 2006-07-06

Family

ID=33548042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2005/000556 Ceased WO2006070058A1 (fr) 2004-12-30 2005-12-29 Equipement de traitement d'une matiere en poudre ou pulverulente

Country Status (2)

Country Link
FI (1) FI118123B (fr)
WO (1) WO2006070058A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106144677A (zh) * 2016-08-27 2016-11-23 洛阳麦德陶粒有限公司 一种旋转布料装置
JP6305582B1 (ja) * 2017-01-11 2018-04-04 三光化成株式会社 スプリングの分離装置
CN109625787A (zh) * 2018-12-19 2019-04-16 济南大学 一种新型斗式提升机出料口
CN110104454A (zh) * 2019-06-04 2019-08-09 上海众仕环境科技股份有限公司 一种飞灰料仓专用消压式圆盘给料机
CN112298964A (zh) * 2020-10-15 2021-02-02 黄地粮 一种化工包装用pvc塑胶粒子均匀出料设备
CN118992347A (zh) * 2024-10-23 2024-11-22 山东米斗科技发展有限公司 一种微生物饲料添加剂储存装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306501A (en) * 1965-10-21 1967-02-28 Monsanto Co Feeder apparatus
JPS6191645A (ja) * 1984-10-10 1986-05-09 オセ‐ネーデルランド・ベー・ヴエー 光導電素子の縁部領域を露光する装置
JPS63185728A (ja) * 1987-01-28 1988-08-01 Osamu Yoshikawa 粉体フイ−ダ−
WO1993016946A1 (fr) * 1992-02-19 1993-09-02 Raute Precision Oy Dispositif de dosage reglable pour matieres pulverulentes
JPH07109032A (ja) * 1993-10-13 1995-04-25 Printing Bureau Ministry Of Finance Japan スクレーパ式テーブルフィーダ
JPH0948975A (ja) * 1995-08-08 1997-02-18 Sumitomo Metal Ind Ltd 装入車におけるテーブルフィーダ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306501A (en) * 1965-10-21 1967-02-28 Monsanto Co Feeder apparatus
JPS6191645A (ja) * 1984-10-10 1986-05-09 オセ‐ネーデルランド・ベー・ヴエー 光導電素子の縁部領域を露光する装置
JPS63185728A (ja) * 1987-01-28 1988-08-01 Osamu Yoshikawa 粉体フイ−ダ−
WO1993016946A1 (fr) * 1992-02-19 1993-09-02 Raute Precision Oy Dispositif de dosage reglable pour matieres pulverulentes
JPH07109032A (ja) * 1993-10-13 1995-04-25 Printing Bureau Ministry Of Finance Japan スクレーパ式テーブルフィーダ
JPH0948975A (ja) * 1995-08-08 1997-02-18 Sumitomo Metal Ind Ltd 装入車におけるテーブルフィーダ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106144677A (zh) * 2016-08-27 2016-11-23 洛阳麦德陶粒有限公司 一种旋转布料装置
JP6305582B1 (ja) * 2017-01-11 2018-04-04 三光化成株式会社 スプリングの分離装置
CN109625787A (zh) * 2018-12-19 2019-04-16 济南大学 一种新型斗式提升机出料口
CN110104454A (zh) * 2019-06-04 2019-08-09 上海众仕环境科技股份有限公司 一种飞灰料仓专用消压式圆盘给料机
CN112298964A (zh) * 2020-10-15 2021-02-02 黄地粮 一种化工包装用pvc塑胶粒子均匀出料设备
CN118992347A (zh) * 2024-10-23 2024-11-22 山东米斗科技发展有限公司 一种微生物饲料添加剂储存装置

Also Published As

Publication number Publication date
FI20041684A0 (fi) 2004-12-30
FI20041684L (fi) 2006-07-01
FI118123B (fi) 2007-07-13

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