CN102226530A - Ignition method for power station boiler pulverized coal fuel - Google Patents
Ignition method for power station boiler pulverized coal fuel Download PDFInfo
- Publication number
- CN102226530A CN102226530A CN2011101548984A CN201110154898A CN102226530A CN 102226530 A CN102226530 A CN 102226530A CN 2011101548984 A CN2011101548984 A CN 2011101548984A CN 201110154898 A CN201110154898 A CN 201110154898A CN 102226530 A CN102226530 A CN 102226530A
- Authority
- CN
- China
- Prior art keywords
- coal
- boiler
- fuel
- ignition
- burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention provides an ignition method for a power station boiler pulverized coal fuel. In the invention, a boiler smoke pipeline (4) and a boiler hearth (6) are hermetically connected with a coal mill(2),a coal feeder (1) is hermetically connected with the boiler smoke pipeline (4), a pulverized coal fuel pipeline (5) and the coal mill (2) are hermetically connected with a coal burner (3), and the coal burner (3) is hermetically connected with the boiler hearth (6). The method comprises the following steps: additionally arranging an ignition heater in the boiler smoke pipeline (4) to heat and then adjust the temperature of a drying medium, so that the moisture in the coal fuel is evaporated and the dried coal fuel reach the technical requirements of on the ground pulverized coal; and placing a horn-shaped pulverized coal fuel ignition oil burner (7) into the coal burner (3) so that the pulverized coal fuel is ignited while passing through the oil burner (7) and the boiler starts operating normally. The ignition method provided by the invention has advantages of saving fuel oil in the boiler start-debug and unit cold start processes, reducing the energy consumption in the boiler start process and the boiler underload period, saving the cost, improving the boiler efficiency and optimizing the environmentally-friendly index.
Description
Technical field
The present invention relates to power plant boiler coal dust fuel ignition method.
Background technology
The ignition method of the routine of the power plant boiler coal dust fuel of employing coal dust fuel, the stove smoke pipe road 4 of power plant boiler and boiler furnace 6 and 2 airtight connections of coal pulverizer, feeder 1 place between coal pulverizer 2 and the boiler furnace 6 and with 4 airtight connections of stove smoke pipe road, coal dust fuel-supply pipe 5 and coal pulverizer 2 and 3 airtight connections of coal burner, coal burner 3 and 6 airtight connections of boiler furnace, carrying out the coal dust fuel ignition in the conventional big oil gun 7 reeve boiler furnaces 6 of direct-insert, so that make boiler begin the operate as normal (see figure 1).But, the big coal of moisture that pulverized coal preparation system uses is made coal dust, this method causes misfiring owing to the temperature in the initial start stage boiler furnace 6 are low; Adopt the fuel oil pre-burning, treat when boiler furnace 6 interior temperature are elevated to uniform temperature coal dust fuel point is caught fire, so the duration of ignition is long, also will expend more fuel oil.(nine power plant of Jilin, Huaneng Group electricity generating corporation, Ltd are positioned at Jiutai City, Jilin Province district for list of references, Jilin, Huaneng Group electricity generating corporation, Ltd nine boiler of power plant pulverized coal preparation systems method of operating.)
Summary of the invention
In order to solve the energy-conservation ignition trigger problem of power plant boiler, the invention provides power plant boiler coal dust fuel ignition method.
The coal dust fuel ignition method of power plant boiler provided by the invention, step is as follows: the stove smoke pipe road of power plant boiler is connected with boiler furnace and coal pulverizer are airtight, feeder place between coal pulverizer and the boiler furnace and with airtight connection of stove smoke pipe road, the coal dust fuel-supply pipe is connected with coal pulverizer and coal burner are airtight, and coal burner is connected with boiler furnace is airtight; On stove smoke pipe road, install first ignition heater and second ignition heater additional, first ignition heater and the second ignition heater heat drying medium and the temperature of regulating drying medium, make the water evaporates in the coal fuel and reach the specification requirement that grinds coal dust by the drying medium of heating, and reduce coal pulverizer inlet oxygen content, it is explosion-proof to help coal dust preparation system, make operation safer, with the oil burner of horn-like coal dust fuel ignition put into coal burner chien shih coal dust fuel by the time it is lighted, make boiler begin the operate as normal (see figure 2).
Figure of description
Fig. 1 is the device schematic diagram that the ignition method of the routine of power plant boiler coal dust fuel adopts.
Fig. 2 is the device schematic diagram that the ignition method of power plant boiler coal dust fuel of the present invention adopts.
Beneficial effect: the ignition method of power station boiler pulverized coal fuel of the present invention has reduced the energy consumption during boiler startup process and the boiler at low load, has improved boiler efficiency, has optimized environmental protection index, has reached the purpose of saving fuel oil. According to the method for routine, unit is wanted long-term underrun, the pure oil firing of boiler or oily coal multifuel combustion during this at During Trail Operation; For avoiding unburnt oil droplet pickup electrode, Boiler Electrostatic Precipitator can't normally drop into, volume of smoke directly is discharged in the atmosphere, brings serious pollution to environment, and the dust in the flue gas can cause wearing and tearing to bring economic loss to the power plant to the boiler induced-draft fan blade simultaneously.
Two the 660MW generating sets in power plant adopt conventional ignition method Commissioning capable, and the boiler startup process is with oily 4000 tons. The ignition method of power station boiler pulverized coal fuel of the present invention, the boiler startup process is saved 3355.9 tons of fuel oils, 2,584 ten thousand yuan of cost savings with 644.1 tons of oil. Adopt conventional method, about about 90 tons of the each fuel oil of 660MW unit cold start. And the ignition method of application power station boiler pulverized coal fuel of the present invention, about 15 tons of the each fuel oils of cold start, 75 tons of capable of saving fuel oils of the every startup of unit, 57.75 ten thousand yuan of cost savings.
The specific embodiment
The coal dust fuel ignition method of embodiment 1 power plant boiler provided by the invention adopts in nine power plant of Jilin, Huaneng Group electricity generating corporation, Ltd.There are two 660MW generating sets in nine power plant of Jilin, Huaneng Group electricity generating corporation, Ltd.Fig. 2 is the device schematic diagram that the ignition method of power plant boiler coal dust fuel of the present invention adopts.
The coal dust fuel ignition method of power plant boiler provided by the invention, step is as follows: the stove smoke pipe road 4 of power plant boiler and boiler furnace 6 and 2 airtight connections of coal pulverizer, feeder 1 place between coal pulverizer 2 and the boiler furnace 6 and with 4 airtight connections of stove smoke pipe road, coal dust fuel-supply pipe 5 and coal pulverizer 2 and 3 airtight connections of coal burner, coal burner 3 and 6 airtight connections of boiler furnace; On stove smoke pipe road 4, install first ignition heater 8 and second ignition heater 9 additional, first ignition heater 8 and second ignition heater, 9 heat drying media and the temperature of regulating drying medium, make the water evaporates in the coal fuel and reach the specification requirement that grinds coal dust by the drying medium of heating, and reduce coal pulverizer 2 inlet oxygen content, it is explosion-proof to help coal dust preparation system, make operation safer, with the oil burner 7 of horn-like coal dust fuel ignition put into coal burner 3 chien shih coal dust fuel by the time it is lighted, make boiler begin the operate as normal (see figure 2).
Claims (1)
1. the coal dust fuel ignition method of power plant boiler, it is characterized in that step is as follows: the stove smoke pipe road (4) of power plant boiler and boiler furnace (6) and airtight connection of coal pulverizer (2), feeder (1) place between coal pulverizer (2) and the boiler furnace (6) and with airtight connection of stove smoke pipe road (4), coal dust fuel-supply pipe (5) and coal pulverizer (2) and airtight connection of coal burner (3), coal burner (3) and airtight connection of boiler furnace (6); In stove smoke pipe road (4), install first ignition heater (8) and second ignition heater (9) additional, first ignition heater (8) and second ignition heater (9) heat drying medium and the temperature of regulating drying medium, make the water evaporates in the coal fuel and reach the specification requirement that grinds coal dust by the drying medium of heating, and reduce coal pulverizer (2) inlet oxygen content, with the oil burner (7) of horn-like coal dust fuel ignition put into coal burner (3) chien shih coal dust fuel by the time it is lighted, make boiler begin operate as normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101548984A CN102226530A (en) | 2011-06-10 | 2011-06-10 | Ignition method for power station boiler pulverized coal fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101548984A CN102226530A (en) | 2011-06-10 | 2011-06-10 | Ignition method for power station boiler pulverized coal fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102226530A true CN102226530A (en) | 2011-10-26 |
Family
ID=44807518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101548984A Pending CN102226530A (en) | 2011-06-10 | 2011-06-10 | Ignition method for power station boiler pulverized coal fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102226530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996607A (en) * | 2016-12-02 | 2019-07-09 | 通用电器技术有限公司 | System and method for preheating stirring flour mill |
| CN114146500A (en) * | 2021-11-30 | 2022-03-08 | 华能吉林发电有限公司长春热电厂 | Pulse bag type dust collector with dust collection device capable of preventing multiple times of adhesion |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993332A (en) * | 1987-11-17 | 1991-02-19 | Villamosenergiapari Kutato Intezet | Hybrid fluidized bed and pulverized coal combustion system and a process utilizing said system |
| CN1069111A (en) * | 1991-07-26 | 1993-02-17 | Evt能源有限公司 | Coal powder burner |
| CN1490562A (en) * | 2002-10-16 | 2004-04-21 | 北京国力能高科技有限公司 | High-temperature air igniting method and igniter for coal powder boiler |
| CN101216185A (en) * | 2008-01-16 | 2008-07-09 | 中节环(北京)科技有限公司 | Pulverized coal boiler ignition and stable burning device and its use method |
-
2011
- 2011-06-10 CN CN2011101548984A patent/CN102226530A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993332A (en) * | 1987-11-17 | 1991-02-19 | Villamosenergiapari Kutato Intezet | Hybrid fluidized bed and pulverized coal combustion system and a process utilizing said system |
| CN1069111A (en) * | 1991-07-26 | 1993-02-17 | Evt能源有限公司 | Coal powder burner |
| CN1490562A (en) * | 2002-10-16 | 2004-04-21 | 北京国力能高科技有限公司 | High-temperature air igniting method and igniter for coal powder boiler |
| CN101216185A (en) * | 2008-01-16 | 2008-07-09 | 中节环(北京)科技有限公司 | Pulverized coal boiler ignition and stable burning device and its use method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996607A (en) * | 2016-12-02 | 2019-07-09 | 通用电器技术有限公司 | System and method for preheating stirring flour mill |
| CN109996607B (en) * | 2016-12-02 | 2021-04-30 | 通用电器技术有限公司 | System and method for preheating a stirred mill |
| CN114146500A (en) * | 2021-11-30 | 2022-03-08 | 华能吉林发电有限公司长春热电厂 | Pulse bag type dust collector with dust collection device capable of preventing multiple times of adhesion |
| CN114146500B (en) * | 2021-11-30 | 2023-02-03 | 华能吉林发电有限公司长春热电厂 | Pulse bag type dust collector with dust collection device capable of preventing multiple times of adhesion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202048567U (en) | Biomass combustor | |
| CN206094003U (en) | Realize that ultralow load safety ring of coal fired boiler protects degree of depth peak regulation device of operation | |
| CN102095196A (en) | Oilless ignition method of fluidized bed boiler | |
| CN102226530A (en) | Ignition method for power station boiler pulverized coal fuel | |
| CN208253586U (en) | Hot air type Gas Direct-fired burner | |
| CN202938289U (en) | Fuel-saving ignition device of circulating fluidized bed boiler | |
| CN201149425Y (en) | System of calcium carbide stove for recovering CO | |
| CN102607286A (en) | Molten salt furnace afterheat power-generation and combustion comprehensive utilizing system | |
| CN202203937U (en) | Smoke heating system of bed materials of fluidized bed boiler | |
| CN202532478U (en) | Kiln alcohol group fuel combustion machine | |
| CN102322634A (en) | Pulverized coal combustor capable of being ignited with little gasified oil | |
| CN202521630U (en) | Air supply system of biomass particle burner | |
| CN202868681U (en) | Oxygen-enriched combustion device for waste pyrolysis flammable gas | |
| CN203413656U (en) | Structure for improving ignition performance of coal-fired boiler | |
| CN201106844Y (en) | Horizontal darkandlight micro-oil firing pulverized coal burner | |
| CN201159452Y (en) | Self-adapting ignition combustor of direct current boiler | |
| CN202328359U (en) | Oil-free ignition and oil-free stable combustion system of pulverized coal fired boiler | |
| CN202647722U (en) | Oil saving igniting device of high-temperature boiler | |
| CN202757467U (en) | System for comprehensively utilizing waste heat of salt melting furnace for power generation and combustion | |
| CN202757119U (en) | Ignition device for fan-grinder milling boiler | |
| CN203264833U (en) | Air channel heating device for coal mill | |
| CN201425321Y (en) | Microwave-preheating pulverized coal-gasifying small oil gun ignition device for pulverized coal boilers | |
| CN201611099U (en) | Cremator | |
| CN203147797U (en) | Double-in and double-out powder grinding and feeding system | |
| CN102661661A (en) | Smoke residual heat utilization system in doped burning biomass power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111026 |