CN107490015A - A kind of coal generating system and steam power plant - Google Patents
A kind of coal generating system and steam power plant Download PDFInfo
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- CN107490015A CN107490015A CN201710873975.9A CN201710873975A CN107490015A CN 107490015 A CN107490015 A CN 107490015A CN 201710873975 A CN201710873975 A CN 201710873975A CN 107490015 A CN107490015 A CN 107490015A
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- 239000003245 coal Substances 0.000 title claims abstract description 213
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 6
- 238000004939 coking Methods 0.000 claims description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract 1
- 241000273930 Brevoortia tyrannus Species 0.000 description 40
- 238000002485 combustion reaction Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 238000007726 management method Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006399 behavior Effects 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2201/00—Pretreatment of solid fuel
- F23K2201/10—Pulverizing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2201/00—Pretreatment of solid fuel
- F23K2201/30—Separating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/10—Supply line fittings
- F23K2203/104—Metering devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The application is related to thermal power generating technology field, is related to a kind of coal generating system and steam power plant.Coal generating system includes the outer fire coal of burner and stove and mixes match system, and it can realize that accurate mix of fire coal matches somebody with somebody and be sent to the fire coal of specific ature of coal the diverse location of burner and burnt, and greatly improve coal-fired utilization, reduce pollutant emission.It can be realized using the steam power plant of the coal generating system and matched somebody with somebody for coal-fired accurate mix from different mining areas, ensure that ature of coal is homogeneous, it is ensured that safe operation of the boiler.
Description
Technical field
The present invention relates to thermal power generating technology field, in particular to a kind of coal generating system and thermal power generation
Equipment.
Background technology
Because current each power plant's coal source is complex, coal is changeable, lacks effective Coal Analysis and management means, coal-fired
, underaction single fuzzy with means is mixed, thus to coal characteristic and intends mixing the adaptability understanding for burning coal and boiler plant not
Foot, the boiler when larger change occurs for coal as received matter is caused to be likely to occur boiler extinguishment detonation, pulverized coal preparation system in the process of running
The problems such as explosion, the abrasion of heating surface heavy corrosion and pollutant discharge beyond standards, the safety and economic operation of boiler is had a strong impact on.
The content of the invention
In the first aspect of the present invention, there is provided a kind of coal generating system, it can realize fire coal from factory is entered to burning
Between accurate mix of fire coal match somebody with somebody, it is ensured that the coal-fired parameter of different atures of coal accurately controls before combustion, it is ensured that the safe operation of boiler.
In the second aspect of the present invention, there is provided a kind of steam power plant, the essence of the coal property to fire coal can be improved
Really control, improve the thermal efficiency of fire coal and reduce pollutant emission.
To realize above-mentioned technical purpose, the present invention proposes following technical scheme：
A kind of coal generating system, including：Burner and the outer fire coal of stove mix match system, and the burner is divided into top layer combustion
Burner, middle level burner and bottom burner,
The outer fire coal of the stove, which mixes match system, to be included：At least one run coal bin, conveying device, control system and at least two
For depositing the coal-fired coal bunker of different atures of coal, the control system is used to control each coal bunker to export to the conveying dress
The output quantity put, the conveying device are used to mix the fire coal from least two coal bunker and convey mixed fire coal
To run coal bin one of them described,
The top layer burner, the middle level burner and the bottom burner receive from described at least one respectively
The difference of individual run coal bin is coal-fired.
For example, bottom burner combustion has the fire coal of good fire behaviour, the fire coal for being not easy to burn delivers to middle level combustion
Burner is burnt, and top layer burner can burn and burn the lower coal of temperature.
Preferably, the bottom burner, which is used to receive, burns the fire coal that temperature is less than Second Threshold, the middle level burning
Device, which is used to receive, burns the fire coal that temperature is more than or equal to Second Threshold, and the top layer burner burns temperature for reception and is less than
The fire coal of first threshold, wherein, the first threshold is less than the Second Threshold.
Wherein first threshold and Second Threshold are pre-set according to factors such as raw coal ature of coal, the species of burner.
Preferably, the control system includes controller, the feeder electrically connected with the controller and for measuring
The metering device of the Coal-fired capacity of the feeder output, the feeder are installed on the outlet of the coal bunker and for fire coal to be passed through
The metering device is delivered to the conveying device.
Preferably, the controller is provided with control module, and the control module is each according to default coal-fired state modulator
The coal bunker is exported to the output quantity ratio of the conveying device.
Preferably, the default coal-fired parameter burns parameter and default coking parameter including presetting fire parameters, presetting.
Preferably, in addition to sampling apparatus, the sampling apparatus are used to obtain mixed coal-fired coal-fired parameter.
Preferably, it is provided with tramp iron separator in the conveying device.
Preferably, the tramp iron separator is belt tramp iron separator.
Preferably, the feeder is vibration activation feeder.
A kind of steam power plant, it includes boiler, generating set and above-mentioned coal generating system.Wherein coal-fired hair
Burner in electric system is used for boiler heat supplying, so that generating set generates electricity.
The beneficial effect of such scheme：Coal generating system provided by the invention, it is special into the coal-fired fire coal of factory by obtaining
Property parameter, according to the good coal-fired parameter of predetermined design, the coal-fired mixture proportion of different coal-fired parameters is controlled by control system,
Reach coal-fired accurate control before combustion, while the top layer of burner, middle level and bottom difference of burning as needed are burnt
The fire coal of characteristic, it is ensured that unit safety operation and pollutant discharge in compliance with the standard.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structure chart of coal generating system provided in an embodiment of the present invention.
Icon：The coal bunkers of 101- first；The coal bunkers of 102- second；103- feeders；104- belted electronic balances；105- tramp iron separators；
106- conveyer belts；107- roller pickers；108- ring-type coal crackers；109- sampling apparatuses.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.Therefore, the reality of the invention to providing in the accompanying drawings below
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
In the present invention, in the case of not contradiction or conflict, all embodiments, embodiment and feature of the invention
It can be mutually combined.In the present invention, conventional unit, part etc., both can be commercially available, can also be according to of the invention public
The content self-control opened.In the present invention, in order to protrude the emphasis of the present invention, to some conventional operations and unit, part
The omission of progress, or be only briefly described.
Refering to Fig. 1, present embodiments provide fire coal outside a kind of coal generating system, including burner and stove and mix disposition
System, burner are divided into top layer burner, middle level burner and bottom burner.Wherein burner be used for receive come spontaneous combustion coal mix
Match system mixes the fire coal after matching somebody with somebody, and top layer burner, middle level burner and bottom burner can be by controlling burning not
Same coal.Top layer burner, middle level burner and bottom burner are the different parts of burner.
The outer fire coal of stove, which mixes match system, to be included：At least one run coal bin, conveying device, control system and at least two are used for
The coal-fired coal bunker of different atures of coal is deposited, wherein coal bunker is used to be stored into the raw coal after factory, because raw coal comes from different producing area, its
In each component content it is variant, therefore preferably embodiment is, enters plant area from channels such as harbour, railways in raw coal
Afterwards, enter to distinguish according to the composition of fire coal.Steam power plant employee after coal to factory, according to come colliery point, to factory's date, coal,
Ature of coal subregion is deposited, manual entry digital coal yard management system, to facilitate accurate mix of next step to match somebody with somebody.Passable embodiment party
Formula is to be based on technology of Internet of things, after coal to factory, according to come colliery point, to factory's date, coal, ature of coal subregion deposit, pass through
The real-time disk coal instrument of numbering or bucket wheel machine positioning device, range unit, belted electronic balance, laser, unmanned plane disk on coal yard belt
Point etc. intuitively shows coal yard data after information gathering comprehensively by 3-D graphic mode, coal-fired letter in each coal yard of Dynamic Announce
Breath, including enter the constraintss such as field time, fire behaviour, calorific value and environmental protection index and carry out become more meticulous storage and inquiry, automatic record
Enter digital coal yard management system, to facilitate accurate mix of next step to match somebody with somebody.Such as：Subregion is carried out to automobile coal receiving bunker, according to next
The fugitive constituent height coal in future of coal is divided into the classification such as jet coal and meager lean coal, and in coal receiving bunker just mix.By the original after just mixing
Coal insert coal bunker keep in it is stand-by.
Control system is used to control each coal bunker to export to the output quantity of conveying device, in the present embodiment, control system bag
The feeder and the metering device of the Coal-fired capacity for measuring feeder output for include controller, being electrically connected with the controller, to coal
Machine is installed on the outlet of coal bunker and for fire coal to be delivered into conveying device through metering device.Wherein, conveying device is for example, defeated
Send band.Feeder is, for example, to vibrate activation feeder, and it can control the unit interval to be output to the combustion of conveying device from coal bunker
Coal amount.
Refering to Fig. 1, in the present embodiment, coal bunker is two, respectively the first coal bunker 101 and the second coal bunker 102, the first coal bunker
101 and second coal bunker 102 can be used for the fire coal that stores different atures of coal.Such as first coal bunker 101 store the good combustion of burnout performance
Coal, the slightly worse fire coal of the second coal bunker 102 storage burnout performance.Wherein the first coal bunker 101 and the second coal bunker 102 are provided with to coal
Machine 103, and the fire coal in the first coal bunker 101 and the second coal bunker 102 is delivered to by conveyer belt 106 by feeder 103.Control system
The coal-supplying amount of the corresponding feeder 103 with the feeder 103 of the first coal bunker 101 and corresponding to the second coal bunker 102 of system control, so
Can with control respectively the burnout performance in the first coal bunker 101 it is good fire coal with the burnout performance from the second coal bunker 102
Slightly worse coal-fired ratio, reaches the effect mixed and matched somebody with somebody.
Specifically, in the present embodiment, control system has a control module, and control module is every according to default coal-fired state modulator
Individual coal bunker is exported to the output quantity ratio of conveying device.
Default coal-fired parameter therein burns parameter and default coking parameter including presetting fire parameters, presetting.Control
Module synthesis the first coal bunker 101, raw coal in the second coal bunker 102 fire parameters, to burn parameter and coking parameter etc. comprehensive
The first coal bunker 101 and the second coal bunker 102 is controlled to mix the ratio matched somebody with somebody.
Specifically, the first coal bunker 101 and the second coal bunker 102 are tower silo, the regulation of 103 equal variable ratio frequency changer of feeder, and then
Realize control output quantity.
In the present embodiment, the lower section of feeder 103 is provided with belted electronic balance 104, and belted electronic balance 104 fills as metering
Put, the Coal-fired capacity that metering feeder 103 exports from the first coal bunker 101 or the second coal bunker 102.Preferably, metering device is set
On conveyer belt 106.
Specific mixture proportion, those skilled in the art can need according to the use of reality.Such as：Thermoelectricity
Factory employee according to coal yard data storage, considers daily and mixes the fire behaviour with coal, hum-out characteristics, coking property and environmental protection
Index, with reference to load and putting equipment in service situation and constantly mixing for accumulation solidification empirically determined is most preferably mixed with scheme, and section with burning
Learn establishment《Coal-fired PM10 instructs card》To instruct actual coal blending to work.
Conveying device is used to mix the fire coal from least two coal bunkers and mixed fire coal is delivered into one of them
Run coal bin, wherein, the parameter such as the coal-fired hum-out characteristics of each run coal bin memory storage, ature of coal can be the same or different.
Tramp iron separator 105 can be set as the preferred embodiment of the present invention, in conveying device may in fire coal to remove
The metal impurities such as existing iron, tramp iron separator 105 can select belt tramp iron separator 105, disc type iron remover 105 or other iron removalings
Device 105 etc..
Meanwhile before run coal bin is entered, conveying device sieves fire coal by roller picker 107 successively, ring-type coal cracker
108 are crushed, and are sampled after crushing by sampling apparatus 109, and obtain the coal-fired parameter collection before coal stove.Accurately to control
Into coal-fired every coal-fired parameter of burner, the fire coal after crushing can enter run coal bin and deposit.
Top layer burner, middle level burner and bottom burner receive the different combustions from least one run coal bin respectively
Coal.Different fire coals herein refer to fire coal burn parameter difference.Certainly, it is necessary to illustrate, in special time period, if all
Raw coal burns that parameter is preferable, and top layer burner, middle level burner and bottom burner can receive identical coal-fired.
In the present embodiment, fire coal is divided according to the height for burning temperature, set respectively to burn the first of temperature
Threshold value and Second Threshold, wherein, first threshold is less than Second Threshold.
Bottom burner, which is used to receive, burns the fire coal that temperature is less than Second Threshold, and middle level burner burns temperature for reception
Degree is more than or equal to the fire coal of Second Threshold, and top layer burner, which is used to receive, burns the fire coal that temperature is less than first threshold, so
Collocation mode fire coal can be made to be fully burned, reduce pollutant emission simultaneously improve fire coal utilization rate.
The specific setting of first threshold and Second Threshold is placed in, those skilled in the art can be according to the coal-fired parameter of reality
It is configured and controls.
The present embodiment also provides a kind of steam power plant, including boiler, generating set and above-mentioned coal fired power generation system
System.Burner wherein in coal generating system is used for boiler heat supplying, so that generating set generates electricity.
The coal generating system that the present embodiment provides has advantages below：
1st, by obtaining into the coal-fired coal property parameter of factory, according to the good coal-fired parameter of predetermined design, it is by controlling
System controls the coal-fired mixture proportion of different coal-fired parameters, reaches coal-fired accurate control before combustion, while the top of burner
Layer, middle level and bottom burn the fire coals of different hum-out characteristics as needed, it is ensured that unit safety operation and pollutant are up to standard
Discharge.
2nd, by entering factory to during the entire process of entering stove burning from fire coal, coal-fired every coal-fired parameter is controlled in real time, is adopted
With digital coal yard technology, such as：According to the numbering on coal yard belt or bucket wheel machine positioning device, range unit, electronic belt
The real-time disk coal instrument of scale, laser, unmanned plane are made an inventory etc. and intuitively to show coal yard number comprehensively by 3-D graphic mode after information gathering
According to, coal-fired information in each coal yard of Dynamic Announce, including enter the constraintss such as field time, fire behaviour, calorific value and environmental protection index
Carry out become more meticulous storage and inquiry.In system dump area floor with different colours show dump volatile matter situation, sulphur content situation,
, it is specified that sulphur content is extremely red, low heat value is extremely blueness for low heat value situation and total moisture situation, and volatile matter is extremely green,
It is brown that total moisture is abnormal, is normally black, these colors can according to circumstances be reset in the present system.When point in this place
When hitting right mouse button, shortcut menu will be ejected, coal seam position shown above, the coal piling time, coal load quantity, ore deposit name, inspector,
Sulphur content, low heat value, volatile matter, total moisture, with reference to situations such as coal price.Also certain area's floor dump is represented in the system with different colours
Temperature conditions, so as to carry out turning in time burn management.
By to the entering of fuel, consume, deposit, measure, the dynamic realtime management of matter, greatly facilitate the inquiry of coal yard information with
Transfer.Such as：Testing vehicle register is identified using RFID card by unattended truck scale of automobile system, is automatically performed secondary measurement.Pass through
The real-time monitoring to haulage vehicle position, route and speed is realized using GPS and China Mobile's 4G mobile networks Dual positioning, and
Fence is established, ensure that coal-fired transport overall process real-time monitoring.Job instruction is realized by vehicle-mounted group calling system
It is accurate to assign and all vehicle on-line schedulings.Coordinate with harbour tally subsystem and global position system and realize from sending vehicle
To specified stack position, approached from empty wagons to loaded vehicle and enter the Whole Process Control of factory.
These measures help to reduce field and undermine to optimize ature of coal structure, are greatly improved coal yard management efficiency.Simultaneously will
Traditional coal yard management is transformed into digital form, revolutionizes the procurement method in the past using design coal as target, and current
The minimum of fuel purchases and use cost is realized with the procurement method of the minimum target of cost.
3rd, by the application of lower water coal transfer Whole Course Management platform, lower water coal line closed loop management, whole number are realized
Do not landed according to material so that short to have bad luck defeated security and efficiency increases substantially.
4th, the coal blending operation for changing conventional extensive style is matched somebody with somebody by accurate mix of fire coal of multimode, more means, reach, which is mixed, matches somebody with somebody
Critical point is managed, using digital coal yard to rely on, coal market change, factory's internal memory coal feelings are just combined since fire coal enters factory
Condition, coal handling system status of equipment, host device state, load condition etc. are adjusted in good time.By to carrying out coal and mixing with history
The analysis of record, and combine the multiple means such as simulated experiment, combustion experiment and explore fuel cost control and the inherence of coal mixing combustion
Rule, reach as-fired coal or close to design coal index, improve unit operation security, stability and economy.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. coal generating system, it is characterised in that including：Burner and the outer fire coal of stove mix match system, the burner It is divided into top layer burner, middle level burner and bottom burner,The outer fire coal of the stove, which mixes match system, to be included：At least one run coal bin, conveying device, control system and at least two are used for The coal-fired coal bunker of different atures of coal is deposited, the control system is used to control each coal bunker to export to the conveying device Output quantity, the conveying device are used to mix the fire coal from least two coal bunker and mixed fire coal are delivered into it In a run coal bin；The top layer burner, the middle level burner and the bottom burner receive from least one original respectively The difference of coal bunker is coal-fired.
- 2. coal generating system according to claim 1, it is characterised in that the bottom burner burns temperature for reception Degree is less than the fire coal of Second Threshold, and the middle level burner, which is used to receive, burns the fire coal that temperature is more than or equal to Second Threshold, The top layer burner, which is used to receive, burns the fire coal that temperature is less than first threshold, wherein, the first threshold is less than described the Two threshold values.
- 3. coal generating system according to claim 1, it is characterised in that the control system includes controller and institute State the feeder of controller electrical connection and the metering device of the Coal-fired capacity for measuring the feeder output, the feeder It is installed on the outlet of the coal bunker and for fire coal to be delivered into the conveying device through the metering device.
- 4. coal generating system according to claim 3, it is characterised in that the controller is provided with control module, institute Stating control module, each the coal bunker is exported to the output quantity ratio of the conveying device according to default coal-fired state modulator.
- 5. coal generating system according to claim 4, it is characterised in that the default coal-fired parameter includes default catch fire Parameter, default burn parameter and default coking parameter.
- 6. coal generating system according to claim 1, it is characterised in that also including sampling apparatus, the sampling apparatus For obtaining mixed coal-fired coal-fired parameter.
- 7. coal generating system according to claim 1, it is characterised in that be provided with tramp iron separator in the conveying device.
- 8. coal generating system according to claim 7, it is characterised in that the tramp iron separator is belt tramp iron separator.
- 9. according to the coal generating system described in claim any one of 2-7, it is characterised in that the feeder activates for vibration Feeder.
- 10. a kind of steam power plant, it is characterised in that including described in boiler, generating set and claim any one of 1-9 Coal generating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873975.9A CN107490015A (en) | 2017-09-25 | 2017-09-25 | A kind of coal generating system and steam power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873975.9A CN107490015A (en) | 2017-09-25 | 2017-09-25 | A kind of coal generating system and steam power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107490015A true CN107490015A (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710873975.9A Pending CN107490015A (en) | 2017-09-25 | 2017-09-25 | A kind of coal generating system and steam power plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108800188A (en) * | 2018-04-19 | 2018-11-13 | 西安热工研究院有限公司 | A method of it promoting coal-fired boiler fuel and mixes with flexibility |
| CN110930039A (en) * | 2019-11-28 | 2020-03-27 | 华润电力技术研究院有限公司 | Real-time coal inventory information evaluation method and related device |
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| CN207527622U (en) * | 2017-09-25 | 2018-06-22 | 华能国际电力股份有限公司日照电厂 | A kind of coal generating system and steam power plant |
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| CN110930039A (en) * | 2019-11-28 | 2020-03-27 | 华润电力技术研究院有限公司 | Real-time coal inventory information evaluation method and related device |
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Application publication date: 20171219 |