CN107828454A - A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method - Google Patents
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method Download PDFInfo
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- CN107828454A CN107828454A CN201711023587.8A CN201711023587A CN107828454A CN 107828454 A CN107828454 A CN 107828454A CN 201711023587 A CN201711023587 A CN 201711023587A CN 107828454 A CN107828454 A CN 107828454A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/34—Other details of the shaped fuels, e.g. briquettes
- C10L5/36—Shape
- C10L5/363—Pellets or granulates
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- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/24—Mixing, stirring of fuel components
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/28—Cutting, disintegrating, shredding or grinding
Abstract
The invention discloses a kind of energy-conservation for a variety of coals of boiler to match somebody with somebody firing method, comprises the following steps：Coal rank is carried out into a point heap by region to deposit, form different dumps, respectively domestic lignite dump, low-calorie import lignite dump, height sticks into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, corresponding conveyer is installed in the sole of different dumps, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to six kinds of different conditions of production, by the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, carry out break process, obtain with burning Mixture Density Networks, it will finally match somebody with somebody to burn Mixture Density Networks and be conveyed into boiler and match somebody with somebody and burn.The present invention is solved in coal coal blending process, the problem of the precise of each coal ratio so that coal blending work can monitor the instantaneous flow and cumulative amount of defeated coal in time, provide reliable data foundation to reach the coal blending that becomes more meticulous, have huge market popularization value.
Description
【Technical field】
The present invention relates to coal burning technical field, a kind of more particularly to energy-conservation for a variety of coals of boiler matches somebody with somebody firing method.
【Background technology】
In recent years, with the extensive utilization that coal generates electricity, the use of coal and the control of usage amount receive extensive pass
Note, associated environmental issue have also obtained corresponding attention；Coal mixing combustion typically uses the skill of a variety of coal mixed combustions
Art, the technology easily cause stratified combustion, stratified combustion occur, operations staff is without effective processing means；Burn colm or excellent, bad
Matter coal junction easily causes unstable combustion, operational factor significantly change, causes burner hearth to stop working when serious；It can be made when burning sulphur coal
Into the SO in discharge gas2Concentration over-standard, cause environmental pollution event.And power plant's coal supply channel is multi-sourcing, the matter of coal in power plant
Amount fluctuating range is larger, coal is complicated, and characteristic deviation is big, although boiler coal feeding system can be according to the various differences come coal characteristically
Different to be combined, carry out Coal rank mutually mixes burning, plays each characteristic mixed and burn coal, but boiler of power plant is once because of coal source
Nervous and ature of coal is poor, and coal blending is also unreasonable, causes that each heating surface coking of boiler is more serious, and boiler on-load is limited, and is caused
Boiler efficiency is low, has a strong impact on the normal operation of boiler.In actual mechanical process, artificial subjectivity estimation coal blending is depended merely on
Ratio so that there is larger difference in coal blending result and expected results, the purpose for the coal blending that not up to becomes more meticulous.
According to the property of Coal rank, blending models are established with reference to burning security and economy.Grope through practice, draw
A kind of following energy-conservation for a variety of coals of boiler matches somebody with somebody firing method.
【The content of the invention】
Present invention aims at providing a kind of energy-conservation for a variety of coals of boiler to match somebody with somebody firing method, the technology solves coal coal blending
During, the problem of the precise of each coal ratio so that coal blending work can monitor the instantaneous flow of defeated coal and accumulative in time
Amount, provides reliable data foundation to reach the coal blending that becomes more meticulous, has huge market popularization value.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：A kind of energy-conservation for a variety of coals of boiler is with burning
Method, comprise the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to six kinds of different productions
Situation, by the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with main shaft
Rotating speed carries out break process under conditions of being 300~500r/min, obtains with Mixture Density Networks are burnt, and will finally match somebody with somebody burning Mixture Density Networks and be conveyed into
Boiler is carried out with burning；
Six kinds of described different conditions of production include following several：
The first condition of production：When powder processed and Combustion Energy meet production requirement, dispense domestic lignite and low-calorie import is brown
The weight ratio of coal, domestic lignite and low-calorie import lignite is 2：1；
Second of condition of production：When powder processed and Combustion Energy meet production requirement, but superheated steam temperature >=115 of boiler furnace
DEG C when, dispense domestic lignite and height and stick into a mouthful lignite, domestic lignite and the high weight ratio for sticking into mouthful lignite are 1：1；
The third condition of production：When powder processed and Combustion Energy meet production requirement, but during cloth bag resistance >=1000Pa of boiler,
Dispense domestic lignite and height and stick into a mouthful lignite, domestic lignite and the high weight ratio for sticking into mouthful lignite are 1：2；
The 4th kind of condition of production：When carrying out Spring Festival guarantor's production, domestic lignite and water port lignite, domestic lignite and water are dispensed
The weight ratio of port lignite is 2：3；
The 5th kind of condition of production：When boiler compound position is low, furnace outlet temperature >=105 DEG C or during boiler coke, dispatching is domestic brown
Coal, height stick into mouthful lignite and Guizhou bituminous coal, and domestic lignite, the high mouthful lignite and the weight ratio of Guizhou bituminous coal of sticking into are 4：3：1；
The 6th kind of condition of production：When boiler high loaded process, domestic lignite, low-calorie import lignite and Guizhou cigarette are dispensed
Coal, the weight ratio of domestic lignite, low-calorie import lignite and Guizhou bituminous coal is 1：1：1.
In the present invention, it is as further explanation, calorific value of the first the described condition of production with burning Mixture Density Networks
14.00MJ/kg, ash fusion point are 1256.67 DEG C.
In the present invention, it is as further explanation, the calorific value with burning Mixture Density Networks of second described of condition of production
15.50MJ/kg, ash fusion point are 1250.00 DEG C.
In the present invention, it is as further explanation, calorific value of the third the described condition of production with burning Mixture Density Networks
16.33MJ/kg, ash fusion point are 1233.33 DEG C.
In the present invention, it is as further explanation, calorific value of the described the 4th kind of condition of production with burning Mixture Density Networks
15.40MJ/kg, ash fusion point are 1300.00 DEG C.
In the present invention, it is as further explanation, calorific value of the described the 5th kind of condition of production with burning Mixture Density Networks
16.13MJ/kg, ash fusion point are 1247.50 DEG C.
In the present invention, it is as further explanation, calorific value of the described the 6th kind of condition of production with burning Mixture Density Networks
17.33MJ/kg, ash fusion point are 1216.67 DEG C.
The invention has the advantages that：
1. the present invention has expanded coal-fired channel according to Guizhou bituminous coal and Guangxi lignite present situation in short supply, and according to different coals
The different qualities of kind, grope the optimal coal blending mode of cost performance on the premise of boiler safety, stable operation is ensured, establish science
With model is burnt, successfully manage " emergent, short-term, mid-term " production requirement.
2. the present invention designs the more coals of boiler with the model burnt, can be according to Coal rank and calorific value, with reference on scene
The optimization lifting of coal system administration, using security, the best combustion mode of economy, reaches the purpose of low-carbon energy-saving.
【Embodiment】
Embodiment 1：
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, comprises the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to the first condition of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 300r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler progress
With burning；
The condition of wherein the first condition of production is：When powder processed and Combustion Energy meet production requirement, domestic lignite is dispensed
With low-calorie import lignite, the weight ratio of domestic lignite and low-calorie import lignite is 2：1；Calorific value with burning Mixture Density Networks is 14.00MJ/
Kg, ash fusion point are 1256.67 DEG C.
Embodiment 2：
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, comprises the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to second of condition of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 400r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler progress
With burning；
The condition of wherein second condition of production is：When powder processed and Combustion Energy meet production requirement, but the mistake of boiler furnace
During vapours temperature >=115 DEG C, dispense domestic lignite and height and stick into a mouthful lignite, the weight ratio that domestic lignite and height stick into mouthful lignite is
1：1；Calorific value with burning Mixture Density Networks is 15.50MJ/kg, and ash fusion point is 1250.00 DEG C.
Embodiment 3：
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, comprises the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to the third condition of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 450r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler progress
With burning；
Wherein the third condition of production is：When powder processed and Combustion Energy meet production requirement, but the cloth bag resistance of boiler >=
During 1000Pa, dispense domestic lignite and height and stick into a mouthful lignite, domestic lignite and the high weight ratio for sticking into mouthful lignite are 1：2；With burning
The calorific value of Mixture Density Networks is 16.33MJ/kg, and ash fusion point is 1233.33 DEG C.
Embodiment 4：
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, comprises the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to the 4th kind of condition of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 420r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler progress
With burning；
Wherein the 4th kind of condition of production is：When carrying out Spring Festival guarantor's production, domestic lignite and water port lignite is dispensed, it is domestic brown
The weight ratio of coal and water port lignite is 2：3；Calorific value with burning Mixture Density Networks is 15.40MJ/kg, and ash fusion point is 1300.00 DEG C.
Embodiment 5：
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, comprises the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to the 5th kind of condition of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 380r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler progress
With burning；
Wherein the 5th kind of condition of production is：When boiler compound position is low, furnace outlet temperature >=105 DEG C or during boiler coke, dispatching
Domestic lignite, height stick into mouthful lignite and Guizhou bituminous coal, and domestic lignite, the high mouthful lignite and the weight ratio of Guizhou bituminous coal of sticking into are 4：3：
1；Calorific value with burning Mixture Density Networks is 16.13MJ/kg, and ash fusion point is 1247.50 DEG C.
Embodiment 6：
A kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, comprises the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie are entered
Mouth lignite dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, are installed in the sole of different dumps
There is corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to the 6th kind of condition of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 300~500r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler
Carry out with burning；
Wherein the 6th kind of condition of production is：When boiler high loaded process, domestic lignite, low-calorie import lignite and expensive are dispensed
State bituminous coal, the weight ratio of domestic lignite, low-calorie import lignite and Guizhou bituminous coal is 1：1：1；With burn Mixture Density Networks calorific value be
17.33MJ/kg, ash fusion point are 1216.67 DEG C.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, the equal change completed or modification change under the technical spirit suggested by all present invention, all should belong to
Cover the scope of the claims in the present invention.
Claims (7)
1. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method, it is characterised in that：Comprise the following steps：
Coal rank is carried out into a point heap by region to deposit, forms different dumps, respectively domestic lignite dump, low-calorie import are brown
Coal dump, height stick into a mouthful lignite dump, water port lignite dump and Guizhou bituminous coal dump, and phase is provided with the sole of different dumps
Corresponding conveyer, corresponding belted electronic balance is installed in the middle part of conveyer frame, according to six kinds of different conditions of production,
By the coal on dump after the management through quantification of belted electronic balance, it is delivered to by conveyer in shared disintegrating machine, with the speed of mainshaft
To carry out break process under conditions of 300~500r/min, obtain with Mixture Density Networks are burnt, will finally match somebody with somebody burning Mixture Density Networks and be conveyed into boiler
Carry out with burning；
Six kinds of described different conditions of production include following several：
The first condition of production：When powder processed and Combustion Energy meet production requirement, domestic lignite and low-calorie import lignite, state are dispensed
The weight ratio of interior lignite and low-calorie import lignite is 2：1；
Second of condition of production：When powder processed and Combustion Energy meet production requirement, but superheated steam temperature >=115 DEG C of boiler furnace
When, dispense domestic lignite and height and stick into a mouthful lignite, domestic lignite and the high weight ratio for sticking into mouthful lignite are 1：1；
The third condition of production：When powder processed and Combustion Energy meet production requirement, but during cloth bag resistance >=1000Pa of boiler, dispatching
Domestic lignite and height stick into a mouthful lignite, and domestic lignite and the high weight ratio for sticking into mouthful lignite are 1：2；
The 4th kind of condition of production：When carrying out Spring Festival guarantor's production, domestic lignite and water port lignite is dispensed, domestic lignite and water port is brown
The weight ratio of coal is 2：3；
The 5th kind of condition of production：When boiler compound position is low, furnace outlet temperature >=105 DEG C or during boiler coke, domestic lignite, height are dispensed
Mouthful lignite and Guizhou bituminous coal are sticked into, domestic lignite, the high mouthful lignite and the weight ratio of Guizhou bituminous coal of sticking into are 4：3：1；
The 6th kind of condition of production：When boiler high loaded process, domestic lignite, low-calorie import lignite and Guizhou bituminous coal, state are dispensed
The weight ratio of interior lignite, low-calorie import lignite and Guizhou bituminous coal is 1：1：1.
2. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method according to claim 1, it is characterised in that：Described first
Calorific value of the kind condition of production with burning Mixture Density Networks is 14.00MJ/kg, and ash fusion point is 1256.67 DEG C.
3. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method according to claim 1, it is characterised in that：Described second
The calorific value with burning Mixture Density Networks of the kind condition of production is 15.50MJ/kg, and ash fusion point is 1250.00 DEG C.
4. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method according to claim 1, it is characterised in that：Described the 3rd
Calorific value of the kind condition of production with burning Mixture Density Networks is 16.33MJ/kg, and ash fusion point is 1233.33 DEG C.
5. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method according to claim 1, it is characterised in that：Described the 4th
Calorific value of the kind condition of production with burning Mixture Density Networks is 15.40MJ/kg, and ash fusion point is 1300.00 DEG C.
6. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method according to claim 1, it is characterised in that：Described the 5th
Calorific value of the kind condition of production with burning Mixture Density Networks is 16.13MJ/kg, and ash fusion point is 1247.50 DEG C.
7. a kind of energy-conservation for a variety of coals of boiler matches somebody with somebody firing method according to claim 1, it is characterised in that：Described the 6th
Calorific value of the kind condition of production with burning Mixture Density Networks is 17.33MJ/kg, and ash fusion point is 1216.67 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112862632A (en) * | 2021-04-23 | 2021-05-28 | 南昌暖焰电力科技有限公司 | Method and system for blending and burning coal in thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112862632A (en) * | 2021-04-23 | 2021-05-28 | 南昌暖焰电力科技有限公司 | Method and system for blending and burning coal in thermal power plant |
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