US3204393A - Apparatus for the collecting and transporting away of dust, fumes and gases in rolling mills - Google Patents

Apparatus for the collecting and transporting away of dust, fumes and gases in rolling mills Download PDF

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US3204393A
US3204393A US291120A US29112063A US3204393A US 3204393 A US3204393 A US 3204393A US 291120 A US291120 A US 291120A US 29112063 A US29112063 A US 29112063A US 3204393 A US3204393 A US 3204393A
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suction
ducts
boxes
fumes
exhaust
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US291120A
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Eklund Torsten
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Svenska Flaktfabriken AB
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Svenska Flaktfabriken AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to apparatus for the collecting and transporting away of dust, fumes and gases in rolling mills.
  • arrangements of the above mentioned type have come into use. It has however proved difficult to obtain an effective and suitable exhaust of dust, fumes and gases without the use of exhaust hoods of such dimensions and such placement that they jeopardize the attending and supervising of the mills.
  • a primary object of the invention is to eliminate the above mentioned difiiculties and to make possible a more widespread use of such exhaust devices.
  • the principal embodiment of the invention is characterized in that the suction boxes are located just above the path of the rolled stock and provided with a suction slot facing the path. Further, a throttling valve is arranged in the branch duct from each suction box, the valves being adapted to be automatically adjusted by means of impulses from the driving means of the mill in such a manner that the thrott-ling valve located at the discharge side of the roll stand always is open, while the other valve simultaneously is closed.
  • the exhaustion point By arranging the exhaustion point close to the points where the development of fumes primarily takes place the fumes can effectively be removed by using relatively small quantities of air and in this manner the suction boxes can be given dimensions so that they do not disturb the running process. Because in reversing type mills the exhaust need be employed at one side at a time the required fan may be relatively small and this also works well for the dust separator used in the exhaust line. Therefore the plant as a whole is simple and inexpensive while simultaneously taking but little space and working elfectively.
  • the suction boxes are combined with the strippers of the roll stand and are connected to the exhaust ducts by means of flexible tubes disposed at the pivot center of the strippers.
  • the exhaust system may also include a dust separating device of known design.
  • FIG. 1 designates a housing for a mill and 2 and 3 designate respectively two suction boxes arranged at each side of a roll stand 30.
  • the suction boxes by means of branch ducts 4 and 5 and a main duct 6, are connected to an exhaust fan 20 which may include a dust separator 25.
  • the suction boxes are, according to the invention, arranged adjacent the path of the rolled stock 21 and are provided with a suction slot 2a and 3a respectively, facing the path.
  • the suction boxes are combined with roll strippers and 11 of the mill and are connected to an exhaust system including exhaust ducts 4 and 5 by means of flexible tubes 2b and 3b respectively, disposed at the pivot center 22 of the strippers.
  • the numbers 14 and 15 stand for two lifting means, in the present instance pneumatic, for raising the strippers together with the suction boxes united thereto and for replacing the same in their proper position.
  • the exhaust is carried out only by means of that suction box which at the moment is situated at the discharge side of the mill.
  • the alternate connection of the suction boxes is performed by valve means, in the present instance comprising the valves 16 and 17 inserted in the branch ducts.
  • the valves are arranged to be automatically adjusted by means of impulses from the driving means 26 of the mill, which impulses govern valve actuating means which in the illustrated embodiment comprise a pneumatic adjustment device 18.
  • the blades of the valves are mutually displaced so that one valve is closed while the other is open.
  • valves in such a manne that even when in a closed position, a small quantity of air is permitted to pass therethrough in order to obtain a slight exhaust at the feeding side of the mill.
  • a device for collecting and removing dust fumes and gases in a rolling mill said mill having a roll stand for rolling stock, said device comprising a pair of suction boxes, one of said boxes being positioned on one side of said roll stand the other of said boxes being positioned on the opposite side of said roll stand, a suction slot in each of said suction boxes for facing the rolled stock and adjacent thereto, an exhaust system ineluding a pair of exhaust ducts and means to apply a suction to said ducts, one of said ducts connected to and in communication with one of said suction boxes the other of said ducts connected to and in communication with said other suction box, valve means connected to and intermediate said suction means and said ducts and within said exhaust system for selectively controlling the air flow through said ducts, valve actuating means connected to said valve means and operable to cause a suction to be drawn on the suction box associated with the side of said roll stand from which stock is to be discharged.
  • suction means comprising an exhaust fan
  • said device includes a dust separator in said exhaust system.
  • valve means comprises a pair of air throttling valves, one of said valves in one of said ducts and the other of said valves in the other of said ducts and means interconnecting said valves and operable by said actuating means that when one of said valves is open the other of said valves is closed.
  • a device in accordance with claim 2 including a roll stripper connected to each suction box, said stripper having a pivot center, flexible tubing connected between each of said suction boxes and said associated exhaust duct at the pivot center of the roll stripper connected to said suction box.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Prevention Of Fouling (AREA)
  • Metal Rolling (AREA)
  • Cleaning In General (AREA)

Description

Sept. 7, 1965 LUND APPARATUS FOR THE COLLECTING AND TRANSPORTING AWAY OF DUST, FUMES AND GASES IN ROLLING MILLS Flled June 27, 1963 INVENTOR: EKLUND TORSTEN M ATTYS United States Patent 3,204,393 APPARATUS FOR THE COLLECTING AND TRANS- PORTING AWAY 0F DUST, FUMES AND GASES IN ROLLING MILLS Torsten Eklund, Surahammar, Sweden, assignor to Aktiebolaget Svenska Fliiktfabriken, Stockholm, Sweden Filed June 27, 1963, Ser. No. 291,120 Claims priority, application Sweden, July '3, 1962, 7,'417/ 62 4 Claims. (Cl. 55-419) The present invention relates to apparatus for the collecting and transporting away of dust, fumes and gases in rolling mills. As a part of the general tendency to obtain better and more hygienic working conditions in the industry, arrangements of the above mentioned type have come into use. It has however proved difficult to obtain an effective and suitable exhaust of dust, fumes and gases without the use of exhaust hoods of such dimensions and such placement that they jeopardize the attending and supervising of the mills.
A primary object of the invention is to eliminate the above mentioned difiiculties and to make possible a more widespread use of such exhaust devices. The principal embodiment of the invention is characterized in that the suction boxes are located just above the path of the rolled stock and provided with a suction slot facing the path. Further, a throttling valve is arranged in the branch duct from each suction box, the valves being adapted to be automatically adjusted by means of impulses from the driving means of the mill in such a manner that the thrott-ling valve located at the discharge side of the roll stand always is open, while the other valve simultaneously is closed.
By arranging the exhaustion point close to the points where the development of fumes primarily takes place the fumes can effectively be removed by using relatively small quantities of air and in this manner the suction boxes can be given dimensions so that they do not disturb the running process. Because in reversing type mills the exhaust need be employed at one side at a time the required fan may be relatively small and this also works well for the dust separator used in the exhaust line. Therefore the plant as a whole is simple and inexpensive while simultaneously taking but little space and working elfectively.
According to a suitable embodiment of the invention the suction boxes are combined with the strippers of the roll stand and are connected to the exhaust ducts by means of flexible tubes disposed at the pivot center of the strippers. The exhaust system may also include a dust separating device of known design.
The invention will now be'more fully described with reference to the drawing which shows by way of example a device constructed in accordance with the invention.
In the drawing 1 designates a housing for a mill and 2 and 3 designate respectively two suction boxes arranged at each side of a roll stand 30. The suction boxes, by means of branch ducts 4 and 5 and a main duct 6, are connected to an exhaust fan 20 which may include a dust separator 25. The suction boxes are, according to the invention, arranged adjacent the path of the rolled stock 21 and are provided with a suction slot 2a and 3a respectively, facing the path. In the present instance the suction boxes are combined with roll strippers and 11 of the mill and are connected to an exhaust system including exhaust ducts 4 and 5 by means of flexible tubes 2b and 3b respectively, disposed at the pivot center 22 of the strippers. The numbers 14 and 15 stand for two lifting means, in the present instance pneumatic, for raising the strippers together with the suction boxes united thereto and for replacing the same in their proper position.
In order to gain an efiective exhaust and still only use a limited quantity of air, the exhaust, according to the invention, is carried out only by means of that suction box which at the moment is situated at the discharge side of the mill. The alternate connection of the suction boxes is performed by valve means, in the present instance comprising the valves 16 and 17 inserted in the branch ducts. The valves are arranged to be automatically adjusted by means of impulses from the driving means 26 of the mill, which impulses govern valve actuating means which in the illustrated embodiment comprise a pneumatic adjustment device 18. The blades of the valves are mutually displaced so that one valve is closed while the other is open.
Without departing from the scope of the invention it may be desirable to arrange the valves in such a manne that even when in a closed position, a small quantity of air is permitted to pass therethrough in order to obtain a slight exhaust at the feeding side of the mill.
What is claimed is:
1. A device for collecting and removing dust fumes and gases in a rolling mill, said mill having a roll stand for rolling stock, said device comprising a pair of suction boxes, one of said boxes being positioned on one side of said roll stand the other of said boxes being positioned on the opposite side of said roll stand, a suction slot in each of said suction boxes for facing the rolled stock and adjacent thereto, an exhaust system ineluding a pair of exhaust ducts and means to apply a suction to said ducts, one of said ducts connected to and in communication with one of said suction boxes the other of said ducts connected to and in communication with said other suction box, valve means connected to and intermediate said suction means and said ducts and within said exhaust system for selectively controlling the air flow through said ducts, valve actuating means connected to said valve means and operable to cause a suction to be drawn on the suction box associated with the side of said roll stand from which stock is to be discharged.
2. A device in accordance with claim 1 wherein said suction means comprising an exhaust fan, and said device includes a dust separator in said exhaust system.
3. A device in accordance with claim 1 wherein said valve means comprises a pair of air throttling valves, one of said valves in one of said ducts and the other of said valves in the other of said ducts and means interconnecting said valves and operable by said actuating means that when one of said valves is open the other of said valves is closed.
4. A device in accordance with claim 2 including a roll stripper connected to each suction box, said stripper having a pivot center, flexible tubing connected between each of said suction boxes and said associated exhaust duct at the pivot center of the roll stripper connected to said suction box.
(References on following page) References Cited by the Examiner UNITED STATES PATENTS Pledger 55467 Peterson 15256.52
Hewitt 55-467 Fisher et a1. 55--466 Bahnson 55467 Alexander.-. 15256.52 Reiterer 55466 Goyette 15-25651 5 HARRY B. THORNTON, Primary Examiner.
REUBEN FRIEDMAN, Examiner.

Claims (1)

1. A DEVICE FOR COLLECTING AND REMOVING DUST FUMES AND GASES IN A ROLLING MILL, SAID MILL HAVING A ROLL STAND FOR ROLLING STOCK, SAID DEVICE COMPRISING A PAIR OF SUCTION BOXES, ONE OF SAID BOXES BEING POSITIONED ON ONE SIDE OF SAID ROLL STAND THE OTHER OF SAID BOXES BEING POSITIONED ON THE OPPOSITE SIDE OF SAID ROLL STAND, A SUCTION SLOT IN EACH OF SAID SUCTION BOXES FOR FACING THE ROLLED STOCK AND ADJACENT THERETO, AN EXHAUST SYSTEM INCLUDING A PAIR OF EXHAUST DUCTS AND MEANS TO APPLY A SUCTION TO SAID DUCTS, ONE OF SAID DUCTS CONNECTED TO AND IN COMMUNICATION WITH ONE OF SAID SUCTION BOXES THE OTHER OF SAID DUCTS CONNECTED TO AND IN COMMUNICATION WITH SAID OTHER SUCTION BOX, VALVE MEANS CONNECTED TO AND INTERMEDIATE SAID SUCTION MEANS AND SAID DUCTS AND WITHIN SAID EXHAUST SYSTEM FOR SELECTIVELY CONTROLLING THE AIR FLOW THROUGH SAID DUCTS, VALVE ACTUATING MEANS CONNECTED TO SAID VALVE MEANS AND OPERABLE TO CAUSE A SUCTION TO BE DRAWN ON THE SUCTION BOX ASSOCIATED WITH THE SIDE OF SAID ROLL STAND FROM WHICH STOCK IS TO BE DISCHARGED.
US291120A 1962-07-03 1963-06-27 Apparatus for the collecting and transporting away of dust, fumes and gases in rolling mills Expired - Lifetime US3204393A (en)

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SE741762A SE193633C1 (en) 1962-07-03 1962-07-03

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315446A (en) * 1963-07-15 1967-04-25 Bahnson Co Filter cleaning apparatus
US3841615A (en) * 1971-10-27 1974-10-15 Creusot Loire Installation for extraction of dust from fumes emitted from a mixer
JPS5114847A (en) * 1974-07-29 1976-02-05 Kobe Steel Ltd Yosetsuenshorihoho oyobi sochi
US5162053A (en) * 1987-09-24 1992-11-10 Kowalski Jr Walter J Vehicular brake material collection system
WO2007022842A1 (en) * 2005-08-20 2007-03-01 Sms Demag Ag Rolling installation
DE102009060244A1 (en) 2009-12-23 2011-06-30 SMS Siemag AG, 40237 Method for suction of contaminated air, smoke and dust from outlet guide section of roll stand of roller system, involves bypassing air before entering into suction channel such that air stream contacting surface of bands at increased speed
CN102430577A (en) * 2011-08-18 2012-05-02 中冶南方工程技术有限公司 Flattening suction dedusting method for water mist generated in cold rolling wet flattening production
KR101500208B1 (en) * 2013-11-26 2015-03-06 주식회사 포스코 Apparatus for guiding waste gas
US9505569B2 (en) 2011-03-10 2016-11-29 Ksw Environmental, Llc Method of reducing silicosis caused by inhalation of silica-containing proppant, such as silica sand and resin-coated silica sand, and apparatus therefor
CN110639954A (en) * 2019-09-25 2020-01-03 武汉钢铁有限公司 Hot rolling and finish rolling device capable of efficiently collecting dust and dust collecting method
CN114589202A (en) * 2022-03-17 2022-06-07 浙江博凡实业有限公司 Finish rolling mill who possesses dust removal function

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111545572B (en) * 2020-06-28 2022-03-25 武汉钢铁有限公司 Hot rolling dust fall control system and control method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584613A (en) * 1948-05-07 1952-02-05 William A Pledger Kitchen stove ventilator
US2680938A (en) * 1949-11-09 1954-06-15 Osborn Mfg Co Apparatus for conditioning metal sheets and the like
US2799356A (en) * 1955-06-29 1957-07-16 Spinsavac Corp Access door for vacuum type filter boxes
US2865521A (en) * 1957-06-06 1958-12-23 Sprout Waldron & Co Inc Bulk material truck
US2914136A (en) * 1955-04-21 1959-11-24 Jr Agnew H Bahnson Apparatus for controlling exhaust
US2953952A (en) * 1956-02-29 1960-09-27 Kaiser Aluminium Chem Corp Apparatus for cleaning rolls
US2976556A (en) * 1958-04-01 1961-03-28 Parks Cramer Co Apparatus for the removal of dust
US3003176A (en) * 1954-08-06 1961-10-10 Lodding Engineering Corp Apparatus for removing lint from roll doctor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584613A (en) * 1948-05-07 1952-02-05 William A Pledger Kitchen stove ventilator
US2680938A (en) * 1949-11-09 1954-06-15 Osborn Mfg Co Apparatus for conditioning metal sheets and the like
US3003176A (en) * 1954-08-06 1961-10-10 Lodding Engineering Corp Apparatus for removing lint from roll doctor
US2914136A (en) * 1955-04-21 1959-11-24 Jr Agnew H Bahnson Apparatus for controlling exhaust
US2799356A (en) * 1955-06-29 1957-07-16 Spinsavac Corp Access door for vacuum type filter boxes
US2953952A (en) * 1956-02-29 1960-09-27 Kaiser Aluminium Chem Corp Apparatus for cleaning rolls
US2865521A (en) * 1957-06-06 1958-12-23 Sprout Waldron & Co Inc Bulk material truck
US2976556A (en) * 1958-04-01 1961-03-28 Parks Cramer Co Apparatus for the removal of dust

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315446A (en) * 1963-07-15 1967-04-25 Bahnson Co Filter cleaning apparatus
US3841615A (en) * 1971-10-27 1974-10-15 Creusot Loire Installation for extraction of dust from fumes emitted from a mixer
JPS5114847A (en) * 1974-07-29 1976-02-05 Kobe Steel Ltd Yosetsuenshorihoho oyobi sochi
JPS5537676B2 (en) * 1974-07-29 1980-09-29
US5162053A (en) * 1987-09-24 1992-11-10 Kowalski Jr Walter J Vehicular brake material collection system
US8186198B2 (en) 2005-08-20 2012-05-29 Sms Siemag Aktiengesellschaft Rolling installation
WO2007022842A1 (en) * 2005-08-20 2007-03-01 Sms Demag Ag Rolling installation
US20090217727A1 (en) * 2005-08-20 2009-09-03 Hanke Hans-Juergen Rolling installation
CN101213031B (en) * 2005-08-20 2010-10-06 Sms西马格股份公司 Rolling equipment
DE102009060244A1 (en) 2009-12-23 2011-06-30 SMS Siemag AG, 40237 Method for suction of contaminated air, smoke and dust from outlet guide section of roll stand of roller system, involves bypassing air before entering into suction channel such that air stream contacting surface of bands at increased speed
DE102009060244B4 (en) 2009-12-23 2022-09-15 Sms Group Gmbh Method and device for sucking off contaminated air from the outlet guide area of a roll stand
US9505569B2 (en) 2011-03-10 2016-11-29 Ksw Environmental, Llc Method of reducing silicosis caused by inhalation of silica-containing proppant, such as silica sand and resin-coated silica sand, and apparatus therefor
CN102430577A (en) * 2011-08-18 2012-05-02 中冶南方工程技术有限公司 Flattening suction dedusting method for water mist generated in cold rolling wet flattening production
KR101500208B1 (en) * 2013-11-26 2015-03-06 주식회사 포스코 Apparatus for guiding waste gas
CN110639954A (en) * 2019-09-25 2020-01-03 武汉钢铁有限公司 Hot rolling and finish rolling device capable of efficiently collecting dust and dust collecting method
CN114589202A (en) * 2022-03-17 2022-06-07 浙江博凡实业有限公司 Finish rolling mill who possesses dust removal function

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SE193633C1 (en) 1965-01-05
GB984331A (en) 1965-02-24

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