EP0079261B1 - Method of protecting personnel working in a dusty atmosphere - Google Patents
Method of protecting personnel working in a dusty atmosphere Download PDFInfo
- Publication number
- EP0079261B1 EP0079261B1 EP82401910A EP82401910A EP0079261B1 EP 0079261 B1 EP0079261 B1 EP 0079261B1 EP 82401910 A EP82401910 A EP 82401910A EP 82401910 A EP82401910 A EP 82401910A EP 0079261 B1 EP0079261 B1 EP 0079261B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dusty
- air
- curtains
- personnel
- personnel working
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 description 8
- 238000005065 mining Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
Definitions
- the present invention relates to a method of protecting personnel working in a dusty atmosphere. More particularly, it relates to a process making it possible to maintain in a healthy atmosphere the part of the underground construction sites in which the personnel work.
- digging machines which advance in the galleries by cutting the rocks.
- These machines generally consist of a rotating head provided at its end with sharp elements which penetrate into the rocks.
- ori implements dusting processes which most often consist in sucking stale air from the side of the working face, then purifying it in devices fitted with purifying materials, then to expel the purified air behind the cutting face, (see for example US-A-42 89 509).
- dusting processes which most often consist in sucking stale air from the side of the working face, then purifying it in devices fitted with purifying materials, then to expel the purified air behind the cutting face, (see for example US-A-42 89 509).
- such processes do not allow the environment for personnel working on mining sites to be adequately cleaned.
- the present invention relates to a method of protecting personnel working in the dusty atmosphere of underground gallery digging sites, characterized in that two protective non-dusty air curtains are created between the dusty working face and the rear of the site. in which the staff is located, these air curtains being located in a plane perpendicular to the longitudinal axis of the gallery, the curtains being obtained by delivery of purified air through two slots in an enclosure of the delivery device d purified air disposed behind the dusty air suction device.
- the process of the present application is implemented by creating two protective air curtains of dust-free air.
- the creation of more than two air curtains is possible but does not bring any significant improvement; the formation of a single air curtain is insufficient to obtain effective protection for personnel.
- the two air curtains can be obtained by using in particular the purified air delivery device described in the dust collector which is the subject of a European patent application EP-A-79 260 filed the same updated by the plaintiff and which is entitled: dust collector.
- the device for discharging the purified air consists of an enclosure having the shape of a rectangular parallelepiped disposed behind the dusty air suction device and provided on each lower and upper face with two slots. rectilinear located in two planes perpendicular to the axis of the dust collector.
- the attached figure provides a better understanding of the process of the present invention. It is a top view with partial section. It illustrates a preferred form of implementation of the invention according to which the air delivery device mentioned above is used in the application filed the same day by the applicant and which relates to a dust collector: the parallelepiped enclosure 25 is provided with slots 26 arranged on each lower and upper face in a plane perpendicular to the longitudinal axis of the gallery.
- the purified air enters through channels 22 and 23 to exit in the form of blades 27, 28, 29 and 30 thus creating curtains for separating the working face and the rear of the site.
- the process of the present application is particularly advantageous since it makes it possible to effectively isolate and protect personnel from dusty areas of underground construction sites.
- the implementation is carried out using specific devices which can then be integrated into more complex equipment such as dust collectors.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Road Repair (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Ventilation (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
La présente invention concerne un procédé de protection du personnel travaillant dans une atmosphère poussiéreuse. Elle a plus particulièrement pour objet un procédé permettant de maintenir en atmosphère saine la partie des chantiers souterrains dans laquelle travaille le personnel.The present invention relates to a method of protecting personnel working in a dusty atmosphere. More particularly, it relates to a process making it possible to maintain in a healthy atmosphere the part of the underground construction sites in which the personnel work.
Le creusement de galeries souterraines, en particulier le creusement de mines ou de tunnels est réalisé à l'aide de machines spéciales appelées machines de creusement qui avancent dans les galeries en entaillant les roches. Ces machines sont généralement constituées d'une tête tournante munie à son extrémité d'éléments tranchants qui pénètrent dans les roches.The digging of underground galleries, in particular the digging of mines or tunnels is carried out using special machines called digging machines which advance in the galleries by cutting the rocks. These machines generally consist of a rotating head provided at its end with sharp elements which penetrate into the rocks.
L'abattage des roches, en particulier celui réalisé dans les exploitations minières est accompagné de formations volumineuses de poussières. La recherche de meilleurs résultats techniques et économiques dans le creusement de galeries souterraines conduit à l'emploi de machines de plus en plus performantes mais qui produisent en même temps des quantités de plus en plus importantes de poussières nocives.Rock mining, particularly that carried out in mining operations, is accompanied by large formations of dust. The search for better technical and economic results in the digging of underground galleries leads to the use of machines which are more and more efficient but which at the same time produce increasingly large quantities of harmful dust.
Pour protéger le personnel travaillant dans les chantiers miniers, ori met en oeuvre des procédés de dépoussiérage qui consistent le plus souvent à aspirer l'air vicié du côté du front de taille, à l'épurer ensuite dans des dispositifs munis de matériaux épurateurs, puis à refouler l'air épuré en arrière du front de taille, (voir par exemple le US-A-42 89 509). Malheureusement de tels procédés ne permettent pas d'épurer convenablement l'environnement du personnel travaillant sur les chantiers miniers.To protect the personnel working in mining sites, ori implements dusting processes which most often consist in sucking stale air from the side of the working face, then purifying it in devices fitted with purifying materials, then to expel the purified air behind the cutting face, (see for example US-A-42 89 509). Unfortunately, such processes do not allow the environment for personnel working on mining sites to be adequately cleaned.
Pour améliorer l'épuration de l'air poussiéreux il est connu de mettre en oeuvre des procédés selon lesquels de l'air frais est pulsé de l'arrière du chantier minier vers l'avant du chantier minier : dans ce cas on observe des turbulences qui s'ajoutent à celles créées par la tête de havage et empêchent une bonne aspiration de l'air non épuré. De ce fait, une bonne partie de cet air non épuré va polluer le reste du chantier.To improve the purification of dusty air, it is known to implement methods according to which fresh air is blown from the rear of the mining site towards the front of the mining site: in this case, turbulence is observed. which are added to those created by the cutting head and prevent good suction of unclean air. As a result, a good part of this unpurified air will pollute the rest of the site.
On a maintenant trouvé un procédé qui permet de résoudre ces problèmes et en particulier un procédé permettant de fournir une protection efficace du personnel travaillant dans les chantiers miniers.We have now found a method which makes it possible to solve these problems and in particular a method which makes it possible to provide effective protection for personnel working in mining sites.
La présente invention concerne un procédé de protection du personnel travaillant dans l'atmosphère poussiéreuse des chantiers de creusement de galeries souterraines caractérisé en ce que deux rideaux d'air non poussiéreux de protection sont créés entre le front de taille poussiéreux et l'arrière du chantier dans lequel se trouve le personnel, ces rideaux d'air étant situés dans un plan perpendiculaire à l'axe longitudinal de la galerie, les rideaux étant obtenus par refoulement d'air épuré au travers de deux fentes dans une enceinte du dispositif de refoulement d'air épuré disposé en arrière du dispositif d'aspiration d'air poussiéreux.The present invention relates to a method of protecting personnel working in the dusty atmosphere of underground gallery digging sites, characterized in that two protective non-dusty air curtains are created between the dusty working face and the rear of the site. in which the staff is located, these air curtains being located in a plane perpendicular to the longitudinal axis of the gallery, the curtains being obtained by delivery of purified air through two slots in an enclosure of the delivery device d purified air disposed behind the dusty air suction device.
Le procédé de la présente demande est mis en oeuvre en créant deux rideaux d'air d'air non poussiéreux de protection. La création de plus de deux rideaux d'air est possible mais n'apporte pas d'amélioration significative ; la formation d'un seul rideau d'air est insuffisante pour obtenir une protection efficace du personnel. Selon l'invention les deux rideaux d'air peuvent être obtenus en utilisant en particulier le dispositif de refoulement d'air épuré décrit dans le dépoussiéreur qui fait l'objet d'une demande de brevet européen EP-A-79 260 déposée le même jour par la demanderesse et qui est intitulée : appareil dépoussiéreur. Selon cette demande, le dispositif de refoulement de l'air épuré est constitué d'une enceinte ayant la forme d'un parallélépipède rectangle disposé en arrière du dispositif d'aspiration d'air poussiéreux et muni sur chaque face inférieure et supérieure de deux fentes rectilignes situées dans deux plans perpendiculaires à l'axe du dépoussiéreur.The process of the present application is implemented by creating two protective air curtains of dust-free air. The creation of more than two air curtains is possible but does not bring any significant improvement; the formation of a single air curtain is insufficient to obtain effective protection for personnel. According to the invention, the two air curtains can be obtained by using in particular the purified air delivery device described in the dust collector which is the subject of a European patent application EP-A-79 260 filed the same updated by the plaintiff and which is entitled: dust collector. According to this request, the device for discharging the purified air consists of an enclosure having the shape of a rectangular parallelepiped disposed behind the dusty air suction device and provided on each lower and upper face with two slots. rectilinear located in two planes perpendicular to the axis of the dust collector.
La figure annexée permet de mieux comprendre le procédé de la présente invention. Elle est une vue de dessus avec coupe partielle. Elle illustre une forme préférentielle de mise en oeuvre de l'invention selon laquelle on utilise le dispositif de refoulement d'air cité ci-dessus dans la demande déposée le même jour par la demanderesse et qui concerne un appareil dépoussiéreur : l'enceinte parallélépipédique 25 est munie des fentes 26 disposées sur chaque face inférieure et supérieure dans un plan perpendiculaire à l'axe longitudinal de la galerie. Lorsque le dépoussiéreur est en fonctionnement, l'air épuré pénètre par les canaux 22 et 23 pour sortir sous forme de lames 27, 28, 29 et 30 créant ainsi des rideaux de séparation du front de taille et de l'arrière du chantier.The attached figure provides a better understanding of the process of the present invention. It is a top view with partial section. It illustrates a preferred form of implementation of the invention according to which the air delivery device mentioned above is used in the application filed the same day by the applicant and which relates to a dust collector: the
Le procédé de la présente demande est particulièrement avantageux car il permet d'isoler et de protéger efficacement le personnel des zones poussiéreuses des chantiers souterrains. La mise en oeuvre est réalisée en utilisant des dispositifs particuliers qui peuvent s'intégrer ensuite dans des appareillages plus complexes tels que dépoussiéreurs.The process of the present application is particularly advantageous since it makes it possible to effectively isolate and protect personnel from dusty areas of underground construction sites. The implementation is carried out using specific devices which can then be integrated into more complex equipment such as dust collectors.
Claims (1)
- A method for the protection of personnel working in the dusty atmosphere of headings of underground roadways characterized in that two protective curtains of non-dusty air are produced between the dusty road head and the rear of the heading where the personnel are, these curtains of air being situated in a plane perpendicular to the longitudinal axis of the roadway, the curtains being obtained by delivering filtered air through two slots (26) in an enclosure (25) of a filtered air delivery device disposed at the rear of a dusty air suction device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82401910T ATE11171T1 (en) | 1981-11-10 | 1982-10-19 | PROCEDURES FOR THE PROTECTION OF MINERS WORKING IN DUSTY AIR. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8121040A FR2516162A1 (en) | 1981-11-10 | 1981-11-10 | METHOD FOR PROTECTING STAFF WORKING IN A DUSTY ATMOSPHERE |
FR8121040 | 1981-11-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0079261A1 EP0079261A1 (en) | 1983-05-18 |
EP0079261B1 true EP0079261B1 (en) | 1985-01-09 |
Family
ID=9263871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82401910A Expired EP0079261B1 (en) | 1981-11-10 | 1982-10-19 | Method of protecting personnel working in a dusty atmosphere |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0079261B1 (en) |
AT (1) | ATE11171T1 (en) |
DE (1) | DE3261856D1 (en) |
FR (1) | FR2516162A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1888396B (en) * | 2006-07-21 | 2010-06-16 | 中铁十七局集团有限公司 | Moving air curtain type smoke and dust removing method and apparatus thereof |
CN101324190B (en) * | 2007-06-14 | 2011-12-14 | 兖州煤业股份有限公司 | Method and device for closely removing dust of development machine |
CN101761337B (en) * | 2009-12-29 | 2011-08-24 | 山东科技大学 | Air curtain sealing dedusting system on fully-mechanized excavating face |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT346821B (en) * | 1976-05-21 | 1978-11-27 | Voest Ag | DEVICE FOR SEPARATING DUST-SHAPED PARTS FROM AN AIRFLOW |
US4289509A (en) * | 1978-08-04 | 1981-09-15 | Hoelter Heinz | Dust aspirating arrangement |
-
1981
- 1981-11-10 FR FR8121040A patent/FR2516162A1/en active Granted
-
1982
- 1982-10-19 AT AT82401910T patent/ATE11171T1/en not_active IP Right Cessation
- 1982-10-19 EP EP82401910A patent/EP0079261B1/en not_active Expired
- 1982-10-19 DE DE8282401910T patent/DE3261856D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3261856D1 (en) | 1985-02-21 |
FR2516162B1 (en) | 1983-12-23 |
EP0079261A1 (en) | 1983-05-18 |
ATE11171T1 (en) | 1985-01-15 |
FR2516162A1 (en) | 1983-05-13 |
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