KR20170067015A - Preventing ignition and fire extinguishing system in inside of pile of coal - Google Patents

Preventing ignition and fire extinguishing system in inside of pile of coal Download PDF

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Publication number
KR20170067015A
KR20170067015A KR1020150173368A KR20150173368A KR20170067015A KR 20170067015 A KR20170067015 A KR 20170067015A KR 1020150173368 A KR1020150173368 A KR 1020150173368A KR 20150173368 A KR20150173368 A KR 20150173368A KR 20170067015 A KR20170067015 A KR 20170067015A
Authority
KR
South Korea
Prior art keywords
belt
unit
coal
longitudinal direction
move
Prior art date
Application number
KR1020150173368A
Other languages
Korean (ko)
Inventor
김영주
박호영
백세현
Original Assignee
한국전력공사
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 한국전력공사 filed Critical 한국전력공사
Priority to KR1020150173368A priority Critical patent/KR20170067015A/en
Publication of KR20170067015A publication Critical patent/KR20170067015A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/04—Fire prevention, containment or extinguishing specially adapted for particular objects or places for dust or loosely-baled or loosely-piled materials, e.g. in silos, in chimneys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/32—Belts or like endless load-carriers made of rubber or plastics
    • B65G15/42—Belts or like endless load-carriers made of rubber or plastics having ribs, ridges, or other surface projections
    • B65G15/44—Belts or like endless load-carriers made of rubber or plastics having ribs, ridges, or other surface projections for impelling the loads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G3/00—Storing bulk material or loose, i.e. disorderly, articles
    • B65G3/02—Storing bulk material or loose, i.e. disorderly, articles in the open air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
    • B65G65/06—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads with endless scraping or elevating pick-up conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/045—Sand, soil and mineral ore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/22—Heat or fire protection

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The present invention includes a rotating belt that receives power and includes a plurality of pressure rollers attached to the belt spaced apart from each other in the longitudinal direction of the belt to press the coal stored at the lower end of the belt when the belt is rotated to move the coal And a driving part for providing a driving force to move the belt part in one direction, and an upper surface of the stored coal for preventing air inflow into the inside of the coal, and is attached to one side of the belt part And a pressure portion for moving the belt portion in a moving direction of the belt portion when the belt portion is moved.
According to an embodiment of the present invention, the possibility of spontaneous ignition can be reduced and the spontaneous ignition can be extinguished by suppressing the supply of oxygen or cutting off the coal stored in the low-firing.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a system for preventing ignition of an indoor space,

More particularly, the present invention relates to an indoor low-lean-burn ignition preventing and evolving system capable of preventing the possibility of spontaneous ignition from being stored and effectively evolving at the time of ignition.

In the case of thermal power plants, imported coal is unloaded and stored in low-fired power plants. However, spontaneous combustion of coal is a phenomenon in which coal ignites spontaneously at normal temperature in the air in the absence of any ignition source from the outside, and the heat accumulates for a long time to reach the ignition point and cause combustion. In the low- Spontaneous ignition occurs frequently depending on the state and type of the gas.

In order to solve at least some of the above-mentioned problems, there is provided an indoor low-lean-burn prevention and eva- lution system capable of extinguishing a spontaneous ignition by pre- .

According to an aspect of the present invention, there is provided a belt comprising: a belt rotatably receiving power; a plurality of belts mounted on the belt so as to be spaced apart from each other in a longitudinal direction of the belt, A coal conveying portion including a belt portion including a pressurizing wall for pressurizing coal to move coal and a driving portion for providing a driving force to move the belt portion in one direction; And a pressing portion which is attached to one side of the belt portion and moves in a moving direction of the belt portion when the belt portion is moved.

According to an embodiment of the present invention, a plurality of the pressure units may be provided, and the pressure units may be spaced apart from each other in the longitudinal direction of the belt unit.

According to an embodiment of the present invention, the pressing portion can be provided so as to be movable in the longitudinal direction of the belt portion or in a direction perpendicular to the longitudinal direction of the belt portion.

According to an embodiment of the present invention, a flame-retarded nonwoven fabric is rolled so as to cut off the supply of oxygen when the stored coal is generated, and is connected to one side of the belt portion, And a vortex extinguishing unit moving in the direction of the arrow.

According to an embodiment of the present invention, a plurality of the vigorous digestion units may be continuously arranged in the longitudinal direction of the belt unit.

According to an embodiment of the present invention, in order to spray a flame retardant on the vaginal extinguishing unit, a pipe for flowing a flame retardant liquid and connected to one side of the belt unit and moving in a moving direction of the belt unit when the belt unit is moved, And a plurality of nozzles for spraying the liquid to the vat fire extinguishing unit and spaced apart from the piping at a predetermined interval.

As described above, according to the embodiment of the present invention, it is possible to prevent natural spontaneous combustion by effectively suppressing the supply of coal or suppressing the supply of oxygen, thereby effectively evolving the fires upon spontaneous combustion.

1 is a perspective view of a coal conveyance unit according to an embodiment of the present invention.
FIG. 2 is a plan view of an underground low-fire ignition prevention and evacuation system equipped with a pressure portion, a vagrant digestion portion, and a flame spraying portion in a coal transfer portion according to an embodiment of the present invention.
Fig. 3 is a perspective view of a pressing part according to an embodiment of the present invention.
4 is a perspective view of a vaginal digestion unit according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, the embodiments described below are embodiments suitable for understanding the indoor low-lean spark ignition prevention and evasion system 100 of the present invention. It should be understood, however, that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

The indoor low-self-ignition spontaneous ignition prevention and evasion system 100 according to an embodiment of the present invention includes a coal transfer unit 110 for transferring the coal C stored in low carbon to one side, And a pressing part 130 attached to one side of the belt part 111 to press the upper surface of the coal and move in the movement direction of the belt part 111 when the belt part 111 moves.

Referring to FIGS. 1 and 2, the coal conveying unit 110 is configured to convey coal stored in a low-lean state. The coal conveying unit 110 includes a rotating belt 113 receiving power and a plurality of belts 113 attached to the belt 113, And a pressing wall 114 for moving the coal by scraping the stored coal at the lower end of the belt 113 when the belt 111 is rotated by the rotation of the belt 113. In order to move the belt 111 in one direction, (Not shown).

The belt 112 is configured to rotate in one direction ('B' direction) by a motor or the like like a conveyor belt and has a closed curve shape to rotate and reciprocate between the upper surface and the lower surface of the belt body 112.

The belt portion 111 includes a pressing wall 114 protruding upward from the upper surface of the belt 113. The pressing wall 114 protrudes upward from the upper portion of the belt body 112 And protrudes downward from a lower portion of the belt body 112.

Accordingly, as the belt 113 rotates, the pressure wall 114 located at the lower portion of the belt body 112 scrapes and moves the coal in contact with the coal at the lower level.

The coal conveying unit 110 can be moved in one direction by providing a driving unit 115 on one side of the belt unit 111. As the driving unit 115 moves, It can move in one direction.

1 and 2, as the driving unit 115 moves in one direction ('A' direction), the belt unit 111 connected to the driving unit 115 also moves in the same direction ' A 'direction).

1, the belt conveyor 110 may include the belt 111 in a direction perpendicular to the direction of movement of the driving unit 115. As shown in FIG. That is, the A direction in which the driving unit 115 moves is perpendicular to the B direction in which the belt unit 111 is disposed, the A direction can be regarded as the X axis, and the B direction can be regarded as the Y axis.

The underfoot low-fire ignition prevention and evasion system 100 according to an embodiment of the present invention may further include a pressing portion 130 for pressing the belt portion 111 to move the pressing portion 130 when the belt portion 111 is moved. 111).

As shown in FIG. 3, when the pressing unit 130 is driven by pressing the coal stored in the low-pressure coal, the pressing unit 130 according to an embodiment of the present invention may move the pressing unit 130, The coal located at the lower end is pressed (pressed) by the pressing portion 130, and the air inflow to the coal at the point where it is pressed is blocked to the utmost. As a result, the possibility of ignition becomes low at the point where it is extinguished.

Meanwhile, various known embodiments may be employed as long as the pressing portion 130 can be pressed and pressed against an object as well as the embodiment shown in FIG.

In addition, in the underfloor and low-fire ignition prevention and evasion system 100 according to an embodiment of the present invention, when the pressure unit 130 is mounted on one side of the belt unit 111, when the driving unit 115 is driven, The movable portion 130 can move, and the pressure portion 130 can be moved to a point where the possibility of ignition is large, thereby preventing ignition.

A plurality of the pressing units 130 according to the embodiment of the present invention may be mounted on one side of the belt unit 111 and the plurality of pressing units 130 may be mounted on the belt body 112 113 in the longitudinal direction.

1 and 2, the driving unit 115 can move the belt 111 in the X-axis direction, and the pressing unit 130 can move the belt 113 in the X- The belt portion 110 is first moved on the X axis to the point where the possibility of ignition is high and the pressing portion 130 adjacent to the point where the possibility of ignition is high on the Y axis is moved It is possible to prevent the ignition by pressing it quickly.

In addition, the indoor low-lean spark ignition prevention and evasion system 100 according to an embodiment of the present invention may further include a smolder 140 in order to extinguish the spark plug at a point where ignition starts, .

Referring to FIGS. 2 and 4, in the vagrant extinguisher 140 according to an embodiment of the present invention, a flame-retarded nonwoven fabric is provided on a shaft in a roll shape, and the shaft is connected to a driving means such as a motor by a chain And the shaft is rotated by driving the motor, so that the nonwoven fabric can be dried or unfolded.

The vortex extinguishing unit 140 may be connected to one side of the belt unit 111 and move together when the belt unit 111 is moved. The plurality of vortexor parts 140 may be continuously arranged in the longitudinal direction of the belt part 111.

When the ignition point is found, the belt unit 111 is moved to the same position on the X axis as the ignition point, and the nonwoven fabric of the vagrant extinguishing unit 140 disposed at the same position as the Y- It is possible to prevent contact with oxygen and evolve the fire.

Since the vagrant extinguishing unit 140 according to an embodiment of the present invention is not a method of evolving a fire by spraying water, a problem of incomplete combustion due to a change in properties of coal due to water injection and a secondary ignition The problem can be solved.

Referring to FIG. 2, the indoor low-lean spark ignition prevention and evasion system 100 according to an embodiment of the present invention includes a flame retardant liquid And may further include a spraying unit 150.

The flame retardant spraying unit 150 according to an embodiment of the present invention may be configured such that a flame retardant solution flows to spray the flame retardant solution to the vagrant digestion unit 140 and is connected to one side of the belt unit 111, A pipe 151 for moving the flame retardant supplied to the tubular fire extinguisher 140 in a moving direction of the belt 111 when the flame 151 is moved, Nozzles 152 may be included.

Therefore, when the flame-retardant function is deteriorated during the evolution of the fire by unfolding the nonwoven fabric of the fire extinguishing unit 140 when the fire is generated, the flame-retardant liquid is sprayed from the nozzle 152 adjacent to the fire extinguishing unit 140, can do.

Meanwhile, the indoor low-lean spark ignition prevention and evasion system 100 according to an embodiment of the present invention may simultaneously fire the press portion 130 and the vagrant extinguishing portion 140 to evolve fire.

That is, when the possibility of ignition is predicted to be high or the ignition progresses at an arbitrary point of low tenacity, the belt portion 111 is transferred to the same point on the X axis and the nonwoven fabric of the vaginal digestion portion 140 adjacent to the ignition point is unfolded And the pressing portion 130 adjacent to the ignition point is operated to press the upper portion of the nonwoven fabric so as to effectively prevent ignition or to evolve the fire.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be understood by those skilled in the art that the present invention can be easily understood by those skilled in the art.

C: Coal
110: Coal transportation part
111: Belt portion
112: Belt portion body
113: Belt
114: pressure wall
115:
130:
140:
150: Spraying solution spraying part
151: Piping
152: Nozzle

Claims (6)

A belt portion including a rotating belt which receives power and rotates and a plurality of pressing portions which are attached to the belt so as to be spaced apart from each other in the longitudinal direction of the belt and scrape and move coal stored at a lower end of the belt when the belt is rotated; And a driving unit for providing a driving force to move the belt unit in one direction; And
And a pressing portion which is attached to one side of the belt portion and moves in a moving direction of the belt portion when the belt portion is moved, to pressurize the upper surface of the stored coal to prevent air inflow into the inside of the coal, system. The method according to claim 1,
The pressure-
Wherein the plurality of belt conveyors are provided in the longitudinal direction of the belt, 3. The method of claim 2,
The pressure-
And an in-vehicle low-lean- burn ignition prevention and evasive system provided movably in a longitudinal direction of the belt part or in a direction perpendicular to a longitudinal direction of the belt part The method of claim 3,
A pulverizing and extinguishing unit having a flame-resistant non-woven fabric roll-formed in such a manner as to cut off the supply of oxygen when the stored coal is generated and to extinguish the oxygen, and connected to one side of the belt unit to move in a moving direction of the belt unit when the belt unit is moved Further underfill low-fire ignition prevention and evolution system 5. The method of claim 4,
The above-
Wherein the plurality of the belt-shaped parts are continuously arranged in the longitudinal direction of the belt part, 6. The method of claim 5,
A pipe for spraying a flame retardant to the vaginal extinguishing unit and connected to one side of the belt unit and moving in a moving direction of the belt unit when the belt unit is moved; And a flame spraying unit including a plurality of nozzles spaced apart from each other at a predetermined interval in the piping.
KR1020150173368A 2015-12-07 2015-12-07 Preventing ignition and fire extinguishing system in inside of pile of coal KR20170067015A (en)

Priority Applications (1)

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KR1020150173368A KR20170067015A (en) 2015-12-07 2015-12-07 Preventing ignition and fire extinguishing system in inside of pile of coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150173368A KR20170067015A (en) 2015-12-07 2015-12-07 Preventing ignition and fire extinguishing system in inside of pile of coal

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KR20170067015A true KR20170067015A (en) 2017-06-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101880099B1 (en) 2017-09-21 2018-07-19 한국중부발전(주) Coal depat ignition monitoring system using drone
CN115738127A (en) * 2022-10-09 2023-03-07 华能国际电力股份有限公司上海石洞口第二电厂 Manual fire extinguishing device of coal yard spontaneous combustion
CN116712694A (en) * 2023-05-22 2023-09-08 华能荆门热电有限责任公司 Prevent mud-spraying system of coal spontaneous combustion in coal storage yard

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101880099B1 (en) 2017-09-21 2018-07-19 한국중부발전(주) Coal depat ignition monitoring system using drone
CN115738127A (en) * 2022-10-09 2023-03-07 华能国际电力股份有限公司上海石洞口第二电厂 Manual fire extinguishing device of coal yard spontaneous combustion
CN115738127B (en) * 2022-10-09 2024-01-05 华能国际电力股份有限公司上海石洞口第二电厂 Manual fire extinguishing device for spontaneous combustion of coal yard
CN116712694A (en) * 2023-05-22 2023-09-08 华能荆门热电有限责任公司 Prevent mud-spraying system of coal spontaneous combustion in coal storage yard

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