WO2013140023A1 - Fire extinguishing method, and -apparatus for extinguishing a fire at a vertical roll storage - Google Patents

Fire extinguishing method, and -apparatus for extinguishing a fire at a vertical roll storage Download PDF

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Publication number
WO2013140023A1
WO2013140023A1 PCT/FI2013/000012 FI2013000012W WO2013140023A1 WO 2013140023 A1 WO2013140023 A1 WO 2013140023A1 FI 2013000012 W FI2013000012 W FI 2013000012W WO 2013140023 A1 WO2013140023 A1 WO 2013140023A1
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WO
WIPO (PCT)
Prior art keywords
extinguishing
fire
roll
gripper
blanket
Prior art date
Application number
PCT/FI2013/000012
Other languages
French (fr)
Inventor
Anttl LAMMI
Matti Lammi
Original Assignee
Raumaster Paper Oy
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 Raumaster Paper Oy filed Critical Raumaster Paper Oy
Publication of WO2013140023A1 publication Critical patent/WO2013140023A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/002Fire prevention, containment or extinguishing specially adapted for particular objects or places for warehouses, storage areas or other installations for storing goods
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C35/00Permanently-installed equipment
    • A62C35/02Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/11Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone

Definitions

  • the target of the invention is an extinguishing method for extinguishing a fire at an automatic storage of vertically piled rolls wounded of web, such as paper, tissue or board, later called rolls.
  • the target of the invention is also an apparatus for applying said method.
  • Roll transfers at the storage are carried out by a bridge crane by gripping the roll, which has its axis in vertical direction, at its upper face with a vacuum cup or of its belly with a mechanical pincer gripper.
  • Vacuum cups are known of publications such as SE 454350, FI 971382 and FI 9641 1.
  • Mechanical grippers are known of publications DE 19716747 and FI 120489. Vertical roll storage operates automatically.
  • the most volatile step at vertical roll storage is when a new roll is entering into the storage.
  • a spark or a hot particle may have intruded into the roll, which is smouldering during transfer.
  • An air flow may blow the smoldering very efficiently into flames. This is the case when carrying the roll into the storage in grip of suction cup. With soft board and tissue substantial amount of air flows through the the webs.
  • the best way to prevent the fire is to detect the spark or such as early as possible and not allow it to enter into the storage. Applying spark detection at winder is discovered at the publication US 2009/0242157. From prior art are known rack storages where fire extinguishing is carried out by the stacker which loads and unloads the racks.
  • Figure 1 presents an upper view of the vertical paper roll storage
  • Figure 2 presents a side view and center cross section of one configuration of an extinguishing apparatus which is a blanket
  • Figure 3 presents a side view and center cross section of another configuration of an extinguishing blanket
  • Figure 4 presents a side view of one more configuration of an extinguishing apparatus
  • Figure 5 presents a plan view, cross section at clamping height of an apparatus according to figure 4,
  • Figure 6 presents a mechanical gripper with a roll in a grip
  • Figure 7 presents lower part of one clamping arm, center cross section, of
  • Figure 8 presents a side view of a vacuum cup with integrated extinguishing apparatus
  • Figure 9 presents a top view of a vacuum cup according to figure 8 located between the roll piles.
  • the rolls 1 are piled at vertical roll storage over each other forming piles 2, height of which even exceeding 15 m.
  • Conveyor bridge 3 is moving over the piles. Along the tracks at the bridge moves a carriage where is accommodated hoisting apparatus.
  • the lifting ropes are hanging from the hoisting apparatus and supporting the hoisting device 4.
  • Lifting equipment consist of hoisting apparatus, hoisting ropes and hoisting device 4. Lifting equipment is known from the prior art and has not been described.
  • Figure 1 presents a hoisting device 4, a mechanical gripper, placed in service station locating on one side of the storage. Aside the service station has been placed, ready for launching into operation, at least one precision extinguishing apparatus 5 furnished with a blanket and at least one highly efficient extinguishing apparatus 6.
  • the fire station 7 may accommodate even more extinguishing apparatuses. Extinguishing apparatuses may be at the fire station piled over each other.
  • Figure 2 presents one configuration of the precision extinguishing apparatus 8 placed on the roll pile, center cross section. Left hand part 8a is illustrated at stand-by/transport state and right hand part 8b in extinguishing state. Inside the upper frame 9 has been accommodated preferably several extinguishing agent containers.
  • the extinguishing device on the right is triggered automatically when the extinguishing apparatus is lowered on the roll pile 2.
  • Triggering organ 12 opens the valve 1 1 and the extinguishing agent is released through the pipeline 13 into the extinguishing space.
  • Left hand extinguishing device is remote controlled.
  • An order received e.g. through VLAN connection 15 opens the valve 16 and extinguishing agent is released through pipeline 17 into the extinguishing space.
  • Extinguishing agent consists of a chemical which, after activation, gets mixed, creates an extinguishing aerosol spray which is long lasting and absorbs heat efficiently. Said extinguishing agent is not pressurized at stand-by state.
  • Precision extinguishing apparatus comprises even an extinguishing blanket, which consists of a hood 20 and preferably also of an extension 18.
  • the blanket covers the upper face of the roll pile and at least part of the belly so, that uncovered remains at lower end the ring formed space between the roll pile and the blanket.
  • the height of the blanket during its transfer is essentially the same as maximum roll height. This enables an optimal utilization of the transfer space above rolls.
  • the extension of the blanket 18a is folded. During transfer the blanket remains as folded, because the ring 19 is pressed against the hood 20 and belly by the pincer gripper.
  • the hood is thin but relatively stiff cylinder.
  • the outer fold of the blanket When connected to the vacuum cup the outer fold of the blanket may be extended between the cover of the extinguishing apparatus and vacuum cup. Locking takes place through suction, and the blanket remains as folded as far as the suction is on.
  • the gripper releases its grip. Consequently the heavy ring 19 falls down and straightens the blanket ending up a state 18b.
  • the hood 20 with the extinguishing blanket 18 as its extension closes the burning pile very efficiently, and the extinguishing agent cannot hurt rolls at the neighborhood.
  • the blanket may consist of so many folds that as straightened it reaches even the floor. Precision extinguishing is the preferred choice if the fire has not yet advanced further from one roll/roll pile.
  • Figure 3 presents a side view and center cross section of another configuration of precision extinguishing apparatus locating on the roll pile.
  • Left hand half has been illustrated in stand-by/transfer state and right hand half in extinguishing state.
  • the extension blanket 21 of the hood 20 is a telescopic design.
  • Thin cylinders are furnished with claws 22, which limit the falling so, that at extinguishing position the cylinders are hanging essentially one after another.
  • the overlapping of the cylinder diameters has been exaggerated at the pictures for the sake of readability.
  • the hood and the cylinders are preferably made by laminating fire resistant material, which has been reinforced by fire resistant fibers.
  • the blanket extension according to the figure 2 has preferably been made of fire resistant fabric which is known of prior art blankets used for fire extinguishing.
  • Figure 4 presents a side view of another configuration of a highly efficient extinguishing apparatus, which preferably consists of six bottle formed extinguishing agent containers 23, which have been tied together with a band 24 to constitute a battery set 6. So the cross section of the highly efficient extinguishing apparatus is essentially a hexagon. When the valve 26 is opened, the extinguishing agent gets released through the nozzle 27 into the extinguishing space as an essentially vertical spray.
  • Figure 5 presents a plan view, cross section at clamping height of a highly efficient extinguishing apparatus, a battery set 6 according to figure 4.
  • the highly efficient extinguishing apparatus has been placed into the space between the piles 2a - 2g. This configuration extinguishes especially efficiently the web layers tearing out of the roll pile.
  • Figure 7 presents one configuration where the extinguishing apparatus has been integrated into the mechanical pincer gripper, which is shown at the picture 6.
  • One or more extinguishing devices may be mounted into the pincer gripper preferably one into each clamping arm 28 i.e. in total six pieces.
  • Tubular lower part 29 of the clamping arm constitutes the container of extinguishing agent.
  • a valve 30 At its lower end is a valve 30 and as an extension a nozzle 31.
  • FIG 8 is a side view of a vacuum cup 33 without a roll.
  • Containers of extinguishing agent 29 with valves 30 and nozzles 31 as extensions have been placed essentially on circumference of the round body.
  • figure 9 is shown a top view of a vacuum cup as lowered down between the piles la - If which are piled at a honeycomb array.
  • Extinguishing system may operate as follows. The fire is observed by an automatic detector system which is placed into the storage building. The detector system may consist of point detectors, line detectors or of a combination of both. The detector system gives an alarm about the fire and determines, roughly at least, the location and the intensity of the fire. Provided the hoisting device 4 is furnished with the first aid - extinguishing apparatus, the gripper is moved immediately over the fire.
  • a precision detector and a camera in order to determine the location of the fire more accurately.
  • the crane quickly scans the neighborhood of the estimated location of the fire. On basis of the information received from the survey the location of the burning pile is determined, gripper moved on the burning spot and first aid - extinguishing executed.
  • the extinguishing may start ca one minute after the alarm. Provided the information of the location of the fire is accurate and the gripper is not far from the fire at the time of the alarm, the starting may be even faster.
  • the described operation may take place automatically. After that the crane carries the roll, which eventually is at the gripper, to the closest suitable leaving place. At this moment latest the operator shall at least participate in decision making. Part of the actions may be done by utilizing automation. Next the crane moves the gripper to the fire station. The gripper picks up the extinguishing apparatus into its grip, moves over the burning pile, lowers the extinguishing apparatus upon the burning pile and starts the extinguishing.
  • Information about the intensity of the fire i.e. how far has the fire advanced is a basis for the choice of the extinguishing apparatus and decision of the related actions.
  • the first aid is executed by a precision extinguishing apparatus.
  • a highly efficient extinguishing apparatus is the choice. After first extinguishing completed the gripper may go to fire station, catch a precision extinguishing apparatus and execute follow up extinguishing.
  • a detector at the gripper or at the carriage detects a spark, smouldering fire or a fire while transferring the roll into the storage, said roll is carried by the crane at once to a position from where the roll can be quickly moved outside the storage.
  • Extinguishing apparatuses blankets can be configured by many ways. For the extinguishing blanket is essential that its height at extinguishing state is higher than at stand - by state. Furthermore, the actions may be executed in different order. Provided the gripper accommodates the extinguishing apparatus, the order of actions is different to the case there isn ' t any extinguishing apparatus.
  • a preferable order of actions is as follows.
  • the crane closest to the fire shall after the alarm go immediately to the fire spot and executes the first aid extinguishing.
  • another crane gets released of the roll, which might be at its gripper, goes to the fire station, picks up more efficient extinguishing apparatus, goes to the location of the first crane as soon as it has moved aside and executes an efficient extinguishing.
  • the described process enables first aid extinguishing in one minute after the alarm and efficient extinguishing may start in ca three minutes from the alarm.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Operations Research (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The target of the invention is an extinguishing method for extinguishing a fire at an automatic storage of vertically piled rolls wounded of web, such as paper, tissue or board. The target of the invention is also an apparatus for applying said method. Roll transfers are carried out by a bridge crane by gripping the roll at its upper face with a vacuum cup or of its belly with a mechanical pincer gripper. An automatic detector system gives an alarm about a fire, the extinguishing apparatus is moved over the fire area, the exact location of the fire is determined by the detector locating at the crane or gripper, thereafter the gripper is moved on the fire, extinguishing apparatus lowered on the burning roll pile and extinguishing executed by spraying the extinguishing agent into the fire.

Description

AN EXTINGUISHING METHOD AND -APPARATUS FOR EXTINGUISHING A FIRE AT A VERTICAL ROLL STORAGE
The target of the invention is an extinguishing method for extinguishing a fire at an automatic storage of vertically piled rolls wounded of web, such as paper, tissue or board, later called rolls. The target of the invention is also an apparatus for applying said method.
Roll transfers at the storage are carried out by a bridge crane by gripping the roll, which has its axis in vertical direction, at its upper face with a vacuum cup or of its belly with a mechanical pincer gripper. Vacuum cups are known of publications such as SE 454350, FI 971382 and FI 9641 1. Mechanical grippers are known of publications DE 19716747 and FI 120489. Vertical roll storage operates automatically.
The fire protection of storages of vertically piled rolls concerns saving or loosing substantial properties in case of fire. Total destroying of the storage, including the building, may result in a loss worth tens of millions Euros. Fire protection of vertical roll storages has been traditionally based on sprinkler extinguishing system. Such an extinguishing system is rather expensive investment and has also negative features. Therefore many vertical storages don't have any automatic fire protection system at all. During firefighting at prior storage fires several firefighters have been trapped and killed.
When planning a new vertical storage the key question is the pile height. It is desired to store a specified cubic or tonnage of rolls. Rather as a rule than an exception the insurance company tells the maximum pile height. Alternatively the height is fixed on basis of the insurance fee. The most important reason is that exceeding the critical pile height by two meters the fire advancing speed gets quadrupled. However, increasing the building height is cheaper than extending the area. Fires in the past have been carefully analyzed. One of the most well known cases is a fire at a tissue storage. The sequence of steps was the following. A hot piece was cut of the blade at the winder slitter and was wound between webs in the roll. Wounded roll with smoldering fire inside was transferred into the storage. The roll in fire was recognized by the survey. The operator switched the automatic extinguishing system out of operation and started carrying the burning roll out of the storage by crane at the vacuum grip. The roll began flearing out and burning furiously. During out transfer the fire was spread to the whole storage.
The most volatile step at vertical roll storage is when a new roll is entering into the storage. During the reeling especially a spark or a hot particle may have intruded into the roll, which is smouldering during transfer. An air flow may blow the smoldering very efficiently into flames. This is the case when carrying the roll into the storage in grip of suction cup. With soft board and tissue substantial amount of air flows through the the webs. The best way to prevent the fire is to detect the spark or such as early as possible and not allow it to enter into the storage. Applying spark detection at winder is discovered at the publication US 2009/0242157. From prior art are known rack storages where fire extinguishing is carried out by the stacker which loads and unloads the racks. These are discovered at the publications: JP 915091 1, JP 9272603 and JP 201 1032016. At the vertically piled roll storage the problems are quite different in comparison to rack storage. Especially the flaring out of the web speeds up the fire at high storage quickly, and therefore the extinguishing actions must be done at once. The flaring out must be by all means prevented. As in the storage tens thousands tons of paper may be accommodated, the extinguishing must be efficient but preferably be restricted to burning area only. For the surveillance over this large area a large number of detectors are needed, especially if at the moment of alarm even the location of the burning pile would like to be known exactly. By using line detectors the number of detectors can be decreased. Suitable are smoke detectors. By applying the solution according to the invention known problems can be decreased. By using the existing transfer and gripping equipment the size of the investment remains at minimal level. Owing to low cost the solution is feasible even at quite small storages. It is a fast and efficient precision extinguishing, which for sure is directed right to the core of the fire. Extinguishing agent doesn't spread over a large area and don't destroy a large amount of piles, differently from sprinkler system which uses a large amount of water. After extinguishing the storage may be quickly recovered to normal operation. The same solution may be applied together with the vacuum cup as well as with the mechanical gripper.
For the invention is characteristic what has been told at the characteristic parts of the independent claims. Below the invention is described by referring to attached figures, where
Figure 1 presents an upper view of the vertical paper roll storage,
Figure 2 presents a side view and center cross section of one configuration of an extinguishing apparatus which is a blanket,
Figure 3 presents a side view and center cross section of another configuration of an extinguishing blanket,
Figure 4 presents a side view of one more configuration of an extinguishing apparatus, Figure 5 presents a plan view, cross section at clamping height of an apparatus according to figure 4,
Figure 6 presents a mechanical gripper with a roll in a grip,
Figure 7 presents lower part of one clamping arm, center cross section, of
one configuration of the mechanical pincer gripper,
Figure 8 presents a side view of a vacuum cup with integrated extinguishing apparatus, Figure 9 presents a top view of a vacuum cup according to figure 8 located between the roll piles. The rolls 1 are piled at vertical roll storage over each other forming piles 2, height of which even exceeding 15 m. Conveyor bridge 3 is moving over the piles. Along the tracks at the bridge moves a carriage where is accommodated hoisting apparatus. The lifting ropes are hanging from the hoisting apparatus and supporting the hoisting device 4. Lifting equipment consist of hoisting apparatus, hoisting ropes and hoisting device 4. Lifting equipment is known from the prior art and has not been described.
Figure 1 presents a hoisting device 4, a mechanical gripper, placed in service station locating on one side of the storage. Aside the service station has been placed, ready for launching into operation, at least one precision extinguishing apparatus 5 furnished with a blanket and at least one highly efficient extinguishing apparatus 6. The fire station 7 may accommodate even more extinguishing apparatuses. Extinguishing apparatuses may be at the fire station piled over each other. Figure 2 presents one configuration of the precision extinguishing apparatus 8 placed on the roll pile, center cross section. Left hand part 8a is illustrated at stand-by/transport state and right hand part 8b in extinguishing state. Inside the upper frame 9 has been accommodated preferably several extinguishing agent containers. Two 10, 14 of them have been shown. The extinguishing device on the right is triggered automatically when the extinguishing apparatus is lowered on the roll pile 2. Triggering organ 12 opens the valve 1 1 and the extinguishing agent is released through the pipeline 13 into the extinguishing space. Left hand extinguishing device is remote controlled. An order received e.g. through VLAN connection 15 opens the valve 16 and extinguishing agent is released through pipeline 17 into the extinguishing space.
Surer extinguishing is achieved provided part of the extinguishing devices are triggered automatically and part of them are remote controlled. Extinguishing agent consists of a chemical which, after activation, gets mixed, creates an extinguishing aerosol spray which is long lasting and absorbs heat efficiently. Said extinguishing agent is not pressurized at stand-by state.
Precision extinguishing apparatus comprises even an extinguishing blanket, which consists of a hood 20 and preferably also of an extension 18. At extinguishing state the blanket covers the upper face of the roll pile and at least part of the belly so, that uncovered remains at lower end the ring formed space between the roll pile and the blanket. The height of the blanket during its transfer is essentially the same as maximum roll height. This enables an optimal utilization of the transfer space above rolls. At left side of the picture i.e. at transfer state the extension of the blanket 18a is folded. During transfer the blanket remains as folded, because the ring 19 is pressed against the hood 20 and belly by the pincer gripper. The hood is thin but relatively stiff cylinder.
When connected to the vacuum cup the outer fold of the blanket may be extended between the cover of the extinguishing apparatus and vacuum cup. Locking takes place through suction, and the blanket remains as folded as far as the suction is on. When the precision extinguishing apparatus has been lowered on the roll pile 2, the gripper releases its grip. Consequently the heavy ring 19 falls down and straightens the blanket ending up a state 18b. The hood 20 with the extinguishing blanket 18 as its extension closes the burning pile very efficiently, and the extinguishing agent cannot hurt rolls at the neighborhood. The blanket may consist of so many folds that as straightened it reaches even the floor. Precision extinguishing is the preferred choice if the fire has not yet advanced further from one roll/roll pile.
Figure 3 presents a side view and center cross section of another configuration of precision extinguishing apparatus locating on the roll pile. Left hand half has been illustrated in stand-by/transfer state and right hand half in extinguishing state. The extension blanket 21 of the hood 20 is a telescopic design. Thin cylinders are furnished with claws 22, which limit the falling so, that at extinguishing position the cylinders are hanging essentially one after another. The overlapping of the cylinder diameters has been exaggerated at the pictures for the sake of readability. The hood and the cylinders are preferably made by laminating fire resistant material, which has been reinforced by fire resistant fibers. The blanket extension according to the figure 2 has preferably been made of fire resistant fabric which is known of prior art blankets used for fire extinguishing. Figure 4 presents a side view of another configuration of a highly efficient extinguishing apparatus, which preferably consists of six bottle formed extinguishing agent containers 23, which have been tied together with a band 24 to constitute a battery set 6. So the cross section of the highly efficient extinguishing apparatus is essentially a hexagon. When the valve 26 is opened, the extinguishing agent gets released through the nozzle 27 into the extinguishing space as an essentially vertical spray.
Figure 5 presents a plan view, cross section at clamping height of a highly efficient extinguishing apparatus, a battery set 6 according to figure 4. The highly efficient extinguishing apparatus has been placed into the space between the piles 2a - 2g. This configuration extinguishes especially efficiently the web layers tearing out of the roll pile. Figure 7 presents one configuration where the extinguishing apparatus has been integrated into the mechanical pincer gripper, which is shown at the picture 6. One or more extinguishing devices may be mounted into the pincer gripper preferably one into each clamping arm 28 i.e. in total six pieces. Tubular lower part 29 of the clamping arm constitutes the container of extinguishing agent. At its lower end is a valve 30 and as an extension a nozzle 31.
It is possible to accommodate a corresponding configuration into the vacuum cup.
In figure 8 is a side view of a vacuum cup 33 without a roll. Containers of extinguishing agent 29 with valves 30 and nozzles 31 as extensions have been placed essentially on circumference of the round body. In figure 9 is shown a top view of a vacuum cup as lowered down between the piles la - If which are piled at a honeycomb array.
By using an extinguishing agent which is triggered by ignition, no heavy pressure vessels are needed. Consequently, the integrated extinguishing devices don't essentially increase the gripper weight. Practically the only increase results from extinguishing agent, because the container is there already. Extinguishing system may operate as follows. The fire is observed by an automatic detector system which is placed into the storage building. The detector system may consist of point detectors, line detectors or of a combination of both. The detector system gives an alarm about the fire and determines, roughly at least, the location and the intensity of the fire. Provided the hoisting device 4 is furnished with the first aid - extinguishing apparatus, the gripper is moved immediately over the fire. At the crane carriage and/or at the gripper is accommodated a precision detector and a camera in order to determine the location of the fire more accurately. The crane quickly scans the neighborhood of the estimated location of the fire. On basis of the information received from the survey the location of the burning pile is determined, gripper moved on the burning spot and first aid - extinguishing executed.
The extinguishing may start ca one minute after the alarm. Provided the information of the location of the fire is accurate and the gripper is not far from the fire at the time of the alarm, the starting may be even faster. The described operation may take place automatically. After that the crane carries the roll, which eventually is at the gripper, to the closest suitable leaving place. At this moment latest the operator shall at least participate in decision making. Part of the actions may be done by utilizing automation. Next the crane moves the gripper to the fire station. The gripper picks up the extinguishing apparatus into its grip, moves over the burning pile, lowers the extinguishing apparatus upon the burning pile and starts the extinguishing.
Information about the intensity of the fire i.e. how far has the fire advanced is a basis for the choice of the extinguishing apparatus and decision of the related actions. Provided the fire is still at the smouldering state, the first aid is executed by a precision extinguishing apparatus. In case the fire has advanced further, a highly efficient extinguishing apparatus is the choice. After first extinguishing completed the gripper may go to fire station, catch a precision extinguishing apparatus and execute follow up extinguishing. Provided a detector at the gripper or at the carriage detects a spark, smouldering fire or a fire while transferring the roll into the storage, said roll is carried by the crane at once to a position from where the roll can be quickly moved outside the storage. In addition to the described ones other configurations are possible. Extinguishing apparatuses, blankets can be configured by many ways. For the extinguishing blanket is essential that its height at extinguishing state is higher than at stand - by state. Furthermore, the actions may be executed in different order. Provided the gripper accommodates the extinguishing apparatus, the order of actions is different to the case there isn't any extinguishing apparatus. Furthermore, provided two cranes are operating at the same lane, a preferable order of actions is as follows. The crane closest to the fire shall after the alarm go immediately to the fire spot and executes the first aid extinguishing. At the same time another crane gets released of the roll, which might be at its gripper, goes to the fire station, picks up more efficient extinguishing apparatus, goes to the location of the first crane as soon as it has moved aside and executes an efficient extinguishing. The described process enables first aid extinguishing in one minute after the alarm and efficient extinguishing may start in ca three minutes from the alarm.

Claims

PATENT CLAIMS
1. An Extinguishing method for extinguishing a fire, integrated into a bridge crane operating at an automatic vertical roll storage, characterized in, that an automatic detector system gives an alarm about a fire, the extinguishing apparatus is moved over the fire area, the exact location of the fire is determined by the detector locating at the crane or gripper, thereafter the gripper is moved on the fire, extinguishing apparatus lowered on the burning roll pile and extinguishing executed by spraying the extinguishing agent into the fire.
2. Extinguishing method according claim 1 , characterized in, that all actions are executed automatically.
3. A fire extinguishing method according to one of the previous claims, characterized in, that the extinguishing agent is sprayed into the extinguishing space between the blanket and the roll pile.
4. Fire extinguishing method according to one of the previous claims, characterized in that the extinguishing agent, which - when activated - forms an extinguishing aerosol and generates a long lasting spray which absorbs heat, and that the extinguishing agent at stand - by state is not pressurized.
5. Fire extinguishing apparatus for extinguishing a fire integrated into a bridge crane operating at an automatic vertical roll storage, characterized in, that the extinguishing apparatus consists of one or more containers (10,14,23) filled with extinguishing agent, of valve (1 1,16,26), pipe and nozzle for directing the agent spray into the fire target.
6. A fire extinguishing apparatus according to claim 5, characterized in that in the fire station there are placed at least one precision extinguishing apparatus 5 furnished with a blanket and at least one highly efficient extinguishing apparatus 6.
7. A fire extinguishing apparatus according to one of the previous claims, characterized in, that at least one fire detector (32) has been placed in the crane carriage or in the gripper.
8. A fire extinguishing apparatus according to one of the previous claims, characterized in, that at least one extinguishing apparatus has been integrated in the gripper.
9. A fire extinguishing apparatus according to one of the previous claims, characterized in, that the apparatus is a blanket (8), which at extinguishing state covers the upper head and at least partly the belly of the roll pile (2), so that uncovered remains only a cylindrical space between the lower end of the blanket and the roll pile.
10. A fire extinguishing apparatus according to the claim 9, characterized in, that the height of the blanket (8) at extinguishing state is higher than at the transfer state.
PCT/FI2013/000012 2012-03-19 2013-03-19 Fire extinguishing method, and -apparatus for extinguishing a fire at a vertical roll storage WO2013140023A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20120083 2012-03-19
FI20120083A FI20120083A (en) 2012-03-19 2012-03-19 Fire extinguishing system, fire extinguishing system and fire blanket for extinguishing a fire in a roll of material roll reels and a roll stock

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WO2018011066A1 (en) * 2016-07-12 2018-01-18 Minimax Gmbh & Co. Kg Unmanned vehicle, system, and method for initiating a fire extinguishing action
CN115006764A (en) * 2022-05-25 2022-09-06 青岛职业技术学院 Intelligent fire-fighting robot

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WO2018011066A1 (en) * 2016-07-12 2018-01-18 Minimax Gmbh & Co. Kg Unmanned vehicle, system, and method for initiating a fire extinguishing action
WO2018010982A1 (en) * 2016-07-12 2018-01-18 Minimax Gmbh & Co. Kg Unmanned vehicle, system and method for initiating a fire extinguishing action
US11009877B2 (en) 2016-07-12 2021-05-18 Minimax Gmbh & Co. Kg Unmanned vehicle, system, and method for initiating a fire extinguishing action
CN115006764A (en) * 2022-05-25 2022-09-06 青岛职业技术学院 Intelligent fire-fighting robot
CN115006764B (en) * 2022-05-25 2023-08-22 青岛职业技术学院 Intelligent fire-fighting robot

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