EP0136983A2 - Dispositif pour évacuer fumées et poussières générées pendant le dépolissage de brames - Google Patents

Dispositif pour évacuer fumées et poussières générées pendant le dépolissage de brames Download PDF

Info

Publication number: EP0136983A2
Authority: EP; European Patent Office
Prior art keywords: tunnel; scarfing; smoke; slabs; retractable
Prior art date: 1983-08-10
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.): Granted

Application number

EP84830227A

Other languages

German (de)

English (en)

Other versions

EP0136983A3 (en

EP0136983B1 (fr

Inventor

Ennio Calo'

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.)

Italsider SpA

Original Assignee

Nuova Italsider SpA

Italsider SpA

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.)

1983-08-10

Filing date

1984-07-25

Publication date

1985-04-10

1984-07-25 Application filed by Nuova Italsider SpA, Italsider SpA filed Critical Nuova Italsider SpA

1985-04-10 Publication of EP0136983A2 publication Critical patent/EP0136983A2/fr

1987-12-09 Publication of EP0136983A3 publication Critical patent/EP0136983A3/en

1989-04-26 Application granted granted Critical

1989-04-26 Publication of EP0136983B1 publication Critical patent/EP0136983B1/fr

Status Expired legal-status Critical Current

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area

Definitions

the present invention refers to a device to collect and dump the smoke and dust generated during a scarfing operation of slabs.
such scarfing operation is carried out by sliding the scarfing head described above, along two rails located on the sides of a bench, or of a supporting surface on which the slabs to be scarfed are arranged.
the operating head is equipped with a hood, integral to said operating head while the latter moves.
Said hood is placed over the slab surface to be scarfed, and is connected to a sliding seal, acting as a hood, which directs the smoke and dust into a manifold directly connected to the exhaust fan.
the above described known device has the drawback that it sucks in and removes from the working area only a part of the dust and smoke generated during the scarfing operation.
the residual dust and smoke thus, remain in the working area, negatively affecting the working conditions; further damages to machinery in the working area are to be ascribed to the effects of the smoke and dust which have not been sucked in by the hood.
the purpose of the present invention is to eliminate such drawbacks, by using a retractable tunnel of a particular shape, which can move together with the operating head and makes it possible to collect all the dust and smoke generated during the scarfing operation.
the retractable tunnel is secured at one end to a wall placed near the end of the bench and on which the suction duct begins for the smoke sucked in by a suitable exhaust fan.
the retractable tunnel is secured to the scarfing head by means of a firm metal structure, and follows its movement, contracting while said head operates and expanding when it goes back to its start position for a new operation cycle.
the retractable tunnel according to the invention has the shape of a bellow, suitably supported.
10 indicates a long shaped base on which the slabs to be scarfed are to be placed; said base 10 has, on its sides, two rails 11, on which the supporting means of the scarfing head and of the bellow shaped retractable tunnel slide, all of which having reference number 20.
the retractable tunnel 20 is formed by a number of folds 21, made of fire and abrasion proof material. It results in a bellow shape which enables the retractable tunnel to change from the expanded position, shown in figure 1, to the contracted position shown in figure 2
the bellow shaped retractable tunnel is provided with frames 22, substantially shaped like an upside down U, located at pre-set spaces, for example, constant ones.
Said frames are connected to joints 32 of the articulated arms 32 of a pair of pantographs 30, placed at both sides of the tunnel.
Joints 32 of arms 31 suitably slide along frames 22 of the bellow shaped retractable tunnel.
bellow shaped retractable tunnel 20 is suspended from a pair of portals 40, provided with feet 41, which, by means of wheels 42 move along said rails 11. Arms 31 and joints 32 of pantograph 30 allow for uniform length variations of the retractable tunnel.
the bellow shaped retractable tunnel is also supported on its front part, by the supporting frame 60 of the scarf ing head, said frame being supported by a carriage 61, provided with moving equipment.
the retractable tunnel On its rear part, which is fixed, the retractable tunnel is secured to a wall, for example a plain concrete wall 43, through which the dust and smoke suction duct 44 goes, which terminates against said wall.
a wall for example a plain concrete wall 43, through which the dust and smoke suction duct 44 goes, which terminates against said wall.
the retractable tunnel 20 and the scarfing head 62 are pulled back to cover the slabs 70 which have just been arranged on base 10.
the retractable tunnel 20 reaches here its maximum length (see figure 1).
the scarfing head 62 is then started, together with a fan, not shown in figure, which'sucks in the smoke generated inside the tunnel, through duct 44 (see figure 1).
the opening between the front part of the tunnel and the supporting and transporting structure of the head does not allow for a flow of smoke as, due to said fan, through said opening a strong current of air flows in.
the cleansing means for raceways 12 consist of paddles 45 supported articulately by feet 41 of the mobile suspension portals of the tunnel.
Said paddles have a cross section which is substantially equal to the cross section of the raceways 12. If the working direction of the scarfing head is that shown by arrow F1, they are provided with pawl means preventing a rotation towards the right beyond the vertical position shown in the right part of figure 3: in this way, they gather the dust and deposits which settle on the bottom of raceways 12, and direct them to a system of collection tanks and hydroseparators indicated schematically with reference number 46.
paddles can freely rotate towards the left, with respect to figure 3, they scrape the upper surface of the deposits settled in raceways 12, during the return of the retractable tunnel from the position shown in figure 2 to the position shown in figure 1 (see arrow F2 in figure 3).
raceways 12 are cleaned automatically and continuously.
the latter in order to protect the retractable tunnel walls from the jets of red-hot material caused by the scarfing head work, the latter is equipped with a side deflector 51, and with an upper deflector 52.
the jets of red-hot material caused by the scarfing head work are deviated in the longitudinal direction of the tunnel, so as to protect its side and upper walls.
the part of the tunnel facing the scarfing head is made of two suitably hardened iron sheets: an upper iron sheet "53", and a side iron sheet "54".
Deflectors 51 and 52, and iron sheets 53 and 54 are placed only on one side, in view of the fact that, as shown in figures 1, 2 and 4, the scarfing head faces downwards and sideways.
raceways 12 shown in figure 5 corresponds to the embodiment shown in figures 1, 2 and 4, with the retractable tunnel frame external to the tunnel itself.

Landscapes

Lining And Supports For Tunnels (AREA)
Incineration Of Waste (AREA)

EP84830227A 1983-08-10 1984-07-25 Dispositif pour évacuer fumées et poussières générées pendant le dépolissage de brames Expired EP0136983B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT12607/83A IT1172935B (it)	1983-08-10	1983-08-10	Tunnel retrattile per l'aspirazione dei fumi generati durante l'operazione di scarfatura di una bramma
IT1260783		1983-08-10

Publications (3)

Publication Number	Publication Date
EP0136983A2 true EP0136983A2 (fr)	1985-04-10
EP0136983A3 EP0136983A3 (en)	1987-12-09
EP0136983B1 EP0136983B1 (fr)	1989-04-26

Family

ID=11142135

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP84830227A Expired EP0136983B1 (fr)	1983-08-10	1984-07-25	Dispositif pour évacuer fumées et poussières générées pendant le dépolissage de brames

Country Status (4)

Country	Link
EP (1)	EP0136983B1 (fr)
DE (1)	DE3477898D1 (fr)
ES (1)	ES8505560A1 (fr)
IT (1)	IT1172935B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103143541A (zh) *	2013-03-11	2013-06-12	广西中海环境工程设备有限公司	一种伸缩式大型工件除尘系统
CN105855258A (zh) *	2016-05-30	2016-08-17	哈电集团（秦皇岛）重型装备有限公司	一种推拉式清洁防护装置和清洁防护方法
CN108787684A (zh) *	2018-07-20	2018-11-13	济南华信自动化工程有限公司	一种可移动焊烟吸尘装置
CN111112274A (zh) *	2020-01-29	2020-05-08	中冶重工（唐山）有限公司	钢包除尘工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104625493A (zh) *	2014-12-10	2015-05-20	芜湖福马汽车零部件有限公司	用于空压机生产的焊接工作房除灰装置
CN107030079A (zh) *	2017-05-26	2017-08-11	大连兆和环境科技股份有限公司	一种大跨距移动伸缩折叠式集尘罩
CN111515211A (zh) *	2020-05-18	2020-08-11	北京高能时代环境技术股份有限公司	用于有机污染场地的原位竖向阻隔气味收集设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3176971A (en) *	1962-10-08	1965-04-06	Kirk And Blum Mfg Company	Metal scarfing apparatus
BE755851A (fr) *	1969-09-18	1971-02-15	Messer Griesheim Gmbh	Dispositif pour le decriquage des surfaces de blocs bruts, billettes, brames ou pieces similaires
US3862749A (en) *	1974-01-30	1975-01-28	Af Ind	Metal slab conditioning system
DE2548078C3 (de) *	1975-10-28	1978-05-18	Messer Griesheim Gmbh, 6000 Frankfurt	Eine einer verfahrbaren Flämmvorrichtung zugeordnete Absaugung
GB2064395B (en) *	1979-10-04	1983-12-21	Mitsubishi Heavy Ind Ltd	Process and apparatus for exhausting welding fumes produced during arc welding
EP0051250A1 (fr) *	1980-10-31	1982-05-12	MDS Mannesmann Demag Sack GmbH	Machine d'oxycoupage comprenant un dispositif de protection contre le bruit

1983
- 1983-08-10 IT IT12607/83A patent/IT1172935B/it active
1984
- 1984-07-25 EP EP84830227A patent/EP0136983B1/fr not_active Expired
- 1984-07-25 DE DE8484830227T patent/DE3477898D1/de not_active Expired
- 1984-08-09 ES ES535017A patent/ES8505560A1/es not_active Expired

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103143541A (zh) *	2013-03-11	2013-06-12	广西中海环境工程设备有限公司	一种伸缩式大型工件除尘系统
CN105855258A (zh) *	2016-05-30	2016-08-17	哈电集团（秦皇岛）重型装备有限公司	一种推拉式清洁防护装置和清洁防护方法
CN105855258B (zh) *	2016-05-30	2018-05-04	哈电集团（秦皇岛）重型装备有限公司	一种推拉式清洁防护装置和清洁防护方法
CN108787684A (zh) *	2018-07-20	2018-11-13	济南华信自动化工程有限公司	一种可移动焊烟吸尘装置
CN111112274A (zh) *	2020-01-29	2020-05-08	中冶重工（唐山）有限公司	钢包除尘工艺

Also Published As

Publication number	Publication date
IT8312607A0 (it)	1983-08-10
IT1172935B (it)	1987-06-18
ES535017A0 (es)	1985-06-01
EP0136983A3 (en)	1987-12-09
ES8505560A1 (es)	1985-06-01
EP0136983B1 (fr)	1989-04-26
DE3477898D1 (en)	1989-06-01

Legal Events

Date	Code	Title	Description
1985-02-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1985-04-10	AK	Designated contracting states	Designated state(s): BE DE FR GB LU NL SE
1986-01-22	17P	Request for examination filed	Effective date: 19851009
1987-10-19	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1987-12-09	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): BE DE FR GB LU NL SE
1988-04-27	17Q	First examination report despatched	Effective date: 19880310
1988-08-10	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ITALSIDER SPA
1989-03-11	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1989-04-26	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE FR GB LU NL SE
1989-06-01	REF	Corresponds to:	Ref document number: 3477898 Country of ref document: DE Date of ref document: 19890601
1989-07-07	ET	Fr: translation filed
1990-02-26	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1990-02-26	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1990-04-18	26N	No opposition filed
1991-06-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19910620 Year of fee payment: 8
1991-06-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19910628 Year of fee payment: 8
1991-07-12	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19910712 Year of fee payment: 8
1991-07-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19910730 Year of fee payment: 8
1991-07-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19910731 Year of fee payment: 8
1991-09-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19910930 Year of fee payment: 8
1991-12-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: LU Payment date: 19911227 Year of fee payment: 8
1992-04-09	EPTA	Lu: last paid annual fee
1992-07-25	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19920725 Ref country code: GB Effective date: 19920725
1992-07-26	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19920726
1992-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19920731
1993-01-31	BERE	Be: lapsed	Owner name: ITALSIDER S.P.A. Effective date: 19920731
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1993-03-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1993-03-24	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19920725
1993-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19930331
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1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 84830227.9 Effective date: 19930204

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