CN113446616A - Power generation system and method for directly burning and coupling biomass briquette fuel by using standby coal mill - Google Patents
Power generation system and method for directly burning and coupling biomass briquette fuel by using standby coal mill Download PDFInfo
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- CN113446616A CN113446616A CN202110858353.5A CN202110858353A CN113446616A CN 113446616 A CN113446616 A CN 113446616A CN 202110858353 A CN202110858353 A CN 202110858353A CN 113446616 A CN113446616 A CN 113446616A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a power generation system and method for directly burning and coupling biomass briquette fuel by using a standby coal mill, which comprises a biomass raw material storage bin, a first crusher, a second crusher, a wet biomass powder bin, a dryer, a dry biomass powder bin, a biomass forming machine, a briquette fuel storage bin, a raw coal bin, a coal feeder, a coal mill, a combustor, a boiler hearth, a steering chamber, an air preheater, a primary fan, a dust remover and a hot furnace smoke fan.
Description
Technical Field
The invention belongs to the field of biomass coupling power generation of a thermal power plant, and relates to a power generation system and method for directly burning coupling biomass briquette fuel by using a standby coal mill.
Background
The biomass direct-combustion power generation needs to newly build a small grate furnace and a small fluidized bed boiler, the pure-combustion biomass boiler generally has parameters below high pressure, and the power generation efficiency of a unit is not higher than 30%. The coal-fired boiler is coupled with biomass power generation, on the basis of the original subcritical, supercritical or ultra-supercritical parameter coal-fired boiler, a part of equipment is changed or newly added to utilize heat generated by the biomass, and the generating efficiency of a unit can reach more than 40%. In a word, compared with biomass direct-combustion power generation, coal-fired coupled biomass power generation has remarkable advantages in social benefits, investment cost, power generation efficiency and the like.
The biomass coupling power generation mainly comprises three types of indirect coupling, parallel coupling and direct combustion coupling. The indirect coupling is not good in development prospect because the biomass gasification technology needs to be further improved and perfected, the cost of the gasification furnace is high, and the parallel mixed combustion has the problems of steam parameter matching, too high cost and the like. The direct-fired coupling is a technical route with simple system structure, low cost and high efficiency, and is also a main mode of biomass coupling power generation in the future.
At present, biomass direct-combustion coupling power generation is applied less domestically. The Hardgrove grindability index HGI of the biomass raw material is extremely low, and the biomass raw material can not be directly fed into a conventional coal-fired boiler coal mill for grinding in large quantity. In some plants, biomass fuel and coal are fed into the same coal mill to be pulverized, biomass molding fuel is premixed with the coal at the upstream of the coal feeder, and the biomass molding fuel and the coal are pulverized together in the coal mill and then are sent to corresponding pulverized coal burners through an original powder feeding pipeline. The technology has little or no change to the power plant equipment, but the biomass coupling ratio is extremely low, generally, the long-term continuous biomass coupling ratio is about 1 percent and is not more than 3 percent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a power generation system and a method for directly burning and coupling biomass briquette fuel by using a spare coal mill.
In order to achieve the purpose, the power generation system for directly combusting and coupling the biomass briquette fuel by using the standby coal mill comprises a biomass raw material storage bin, a first crusher, a second crusher, a wet biomass powder bin, a dryer, a dry biomass powder bin, a biomass forming machine, a briquette fuel storage bin, a raw coal bin, a coal feeder, the coal mill, a combustor, a boiler furnace, a steering chamber, an air preheater, a primary fan, a dust remover and a hot-furnace smoke fan;
the outlet of the biomass raw material storage bin is communicated with the inlet of a first crusher, the outlet of the first crusher is communicated with the inlet of a second crusher, the outlet of the second crusher is communicated with the inlet of a wet biomass powder bin, the outlet of the wet biomass powder bin is communicated with the fuel side inlet of a dryer, the fuel side outlet of the dryer is communicated with the inlet of a dry biomass powder bin, the outlet of the dry biomass powder bin is communicated with the inlet of a biomass forming machine, the outlet of the biomass forming machine is communicated with the inlet of a formed fuel storage bin, the outlet of a raw coal bin is communicated with the inlet of a coal feeder, the outlet of the coal feeder is communicated with the fuel side inlet of a coal mill, and the fuel side outlet of the coal mill is communicated with a burner on a boiler hearth;
a heat-pumping furnace smoke hole is formed in the turning chamber, a cooling-pumping furnace smoke hole is formed in the dust remover, the heat-pumping furnace smoke hole in the turning chamber is communicated with an inlet of a hot furnace smoke fan, the cooling-pumping furnace smoke hole in the dust remover is divided into two paths, one path of the two paths of the smoke fans are communicated with an inlet of the drying medium side of the drying machine, and an outlet of the drying medium side of the drying machine is communicated with an inlet of the two sides of the two paths of;
the outlet of the primary air fan is divided into two paths, wherein one path is communicated with the inlet of the primary air side of the air preheater, the other path is communicated with the cold air pipeline on the drying medium side of the coal mill, and the outlet of the primary air side of the air preheater is communicated with the cold air pipeline on the drying medium side of the coal mill.
The outlet of the molding fuel storage bin is communicated with the inlet of the raw coal bin through a coal conveying belt.
The smoke outlet of the cooling furnace on the dust remover is divided into two paths after passing through a smoke blower of the cooling furnace.
And an outlet at the primary air side of the air preheater is communicated with a cold air pipeline at the drying medium side of the coal mill through an air pipe.
And an isolation door and an adjusting door are arranged at the inlet of the smoke blower of the cooling furnace, the inlet of the smoke blower of the heating furnace and the hot air pipeline at the drying medium side of the coal mill.
An isolation door is arranged at the inlet of the burner.
Pressure gauges and thermometers are arranged at the inlet of the smoke blower of the cooling furnace, the inlet of the smoke blower of the hot furnace, the cold air pipeline and the hot air pipeline on the drying medium side of the coal mill, the drying medium side inlet of the dryer and the inlet of the combustor.
The number of the cold furnace smoke fans and the number of the hot furnace smoke fans are two, and an operation mode of one for one is adopted.
And iron removal equipment is arranged between the first crusher and the second crusher.
The invention relates to a power generation method by directly burning coupled biomass briquette fuel by using a standby coal mill, which comprises the following steps:
the method comprises the following steps that original biomass output by a biomass raw material storage bin is sent into a first crusher to be primarily crushed to be smaller than 50-100 mm, then is sent into a second crusher to be crushed to be smaller than 2-5 mm, and crushed biomass powder enters a wet biomass powder bin to be stored; wet saw dust in the wet biomass powder bin enters a dryer for drying, a drying medium in the dryer is a mixed medium of high-temperature furnace smoke extracted from a steering chamber and low-temperature furnace smoke extracted from a dust remover, dried exhaust gas enters the dust remover, dried biomass powder is sent into a dry biomass powder bin for storage, then enters a biomass forming machine for compression forming, and finally is stored in a forming fuel storage bin;
when the biomass fuel is blended and burnt, the biomass briquette fuel in the briquette fuel storage bin enters the combustor for combustion through the coal conveying belt, the raw coal bin and the coal feeder.
The invention has the following beneficial effects:
when the power generation system and the method for directly burning the coupled biomass briquette fuel by using the standby coal mill are specifically operated, biomass raw materials are made into the briquette fuel by the first crusher, the second crusher, the dryer and the biomass forming machine, and the briquette fuel is stored in the briquette fuel storage bin, when the biomass fuel needs to be mixed and burnt, the biomass briquette fuel is independently ground by using the coal mill and then is sent into the combustor for burning, the coal burning function of the original system is not changed at all, and the system is flexible. In addition, the biomass raw material is made into sawdust, then is sent into a coal mill for milling after being pressed and molded, so that the milling system has higher output, when one coal mill is used, the biomass blending combustion ratio can reach more than 20 percent, then a large amount of biomass raw material is sent into the coal mill for milling, the biomass coupling ratio is higher, and the biomass coupling device has the characteristics of small investment, simple system and easy operation.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Wherein, 1 is a biomass raw material storage bin, 2 is a first crusher, 3 is a second crusher, 4 is a wet biomass powder bin, 5 is a dryer, 6 is a dry biomass powder bin, 7 is a biomass forming machine, 8 is a formed fuel storage bin, 9 is a coal conveying belt, 10 is a raw coal bin, 11 is a coal feeder, 12 is a coal mill, 13 is a burner, 14 is a boiler furnace, 15 is a steering chamber, 16 is an air preheater, 17 is a primary fan, 18 is a dust remover, 19 is a cooling furnace smoke fan, and 20 is a hot furnace smoke fan.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the power generation system using a standby coal mill to directly combust and couple biomass briquette fuel according to the present invention includes a biomass raw material storage bin 1, a first crusher 2, a second crusher 3, a wet biomass powder bin 4, a dryer 5, a dry biomass powder bin 6, a biomass forming machine 7, a briquette fuel storage bin 8, a coal conveyor belt 9, a raw coal bin 10, a coal feeder 11, a coal mill 12, a burner 13, a boiler furnace 14, a diversion chamber 15, an air preheater 16, a primary air fan 17, a dust remover 18, a cooling furnace smoke fan 19, and a heating furnace smoke fan 20.
The outlet of the biomass raw material storage bin 1 is communicated with the inlet of a first crusher 2, the outlet of the first crusher 2 is communicated with the inlet of a second crusher 3, the outlet of the second crusher 3 is communicated with the inlet of a wet biomass powder bin 4, the outlet of the wet biomass powder bin 4 is communicated with the fuel side inlet of a dryer 5, the fuel side outlet of the dryer 5 is communicated with the inlet of a dry biomass powder bin 6, the outlet of the dry biomass powder bin 6 is communicated with the inlet of a biomass forming machine 7, the outlet of the biomass forming machine 7 is communicated with the inlet of a formed fuel storage bin 8, the outlet of the formed fuel storage bin 8 is communicated with one end of a coal conveying belt 9, the other end of the coal conveying belt 9 is communicated with the inlet of a raw coal bin 10, the outlet of the raw coal bin 10 is communicated with the inlet of a coal feeder 11, the outlet of the coal feeder 11 is communicated with the fuel side inlet of a coal mill 12, the fuel side outlet of the coal mill 12 communicates with a burner 13 mounted on a boiler furnace 14.
A heat-pumping furnace smoke hole is formed in the position of the turning chamber 15, a cooling-pumping furnace smoke hole is formed in the dust remover 18, the heat-pumping furnace smoke hole in the turning chamber 15 is communicated with an inlet of a heat-furnace smoke fan 20, the cooling-pumping furnace smoke hole in the dust remover 18 is divided into two paths after passing through a cooling-furnace smoke fan 19, one path is used as standby blowing air and communicated with a hot air pipeline on the drying medium side of the coal mill 12, the other path is communicated with an outlet of the heat-furnace smoke fan 20 through a pipeline and then communicated with an inlet of the drying medium side of the drying machine 5, and an outlet of the drying medium side of the drying machine 5 is communicated with an inlet of the dust remover 18.
The outlet of the primary air fan 17 is divided into two paths, wherein one path is communicated with the inlet of the primary air side of the air preheater 16, the other path is communicated with the cold air pipeline at the drying medium side of the coal mill 12, and the outlet of the primary air side of the air preheater 16 is communicated with the cold air pipeline at the drying medium side of the coal mill 12 through a hot air pipeline.
An isolation door and an adjusting door are arranged at the inlet of the cold furnace smoke blower 19, the inlet of the hot furnace smoke blower 20 and the hot air pipeline at the drying medium side of the coal mill 12, and an isolation door is arranged at the inlet of the combustor 13.
Pressure gauges and thermometers are arranged at the inlet of the cold furnace smoke blower 19, the inlet of the hot furnace smoke blower 20, the cold air pipeline and the hot air pipeline on the drying medium side of the coal mill 12, the inlet of the drying medium side of the dryer 5 and the inlet of the combustor 13.
The number of the cold furnace fume fans 19 and the hot furnace fume fans 20 is two, and a one-by-one operation mode is adopted.
The first crusher 2 is provided with 1 crusher, the second crusher 3 is provided with 3 crushers which are arranged in parallel, and the total output of the crushers is equivalent to that of raw coal and output.
An iron removal device is arranged between the first crusher 2 and the second crusher 3, wherein iron-containing substances mixed in the biomass are removed through the iron removal device.
The invention relates to a power generation method by directly burning coupled biomass briquette fuel by using a standby coal mill, which comprises the following steps:
the method comprises the following steps that original biomass output by a biomass raw material storage bin 1 is sent into a first crusher 2 to be primarily crushed to be less than 50-100 mm; removing iron-containing substances mixed in the biomass by iron removal equipment, then sending the biomass into a second crusher 3 for crushing to be less than 2-5 mm, and sending crushed biomass powder into a wet biomass powder bin 4 for storage; the wet saw dust in the wet biomass powder bin 4 enters a dryer 5 for drying, a drying medium is a mixed medium of high-temperature furnace smoke extracted by a turning chamber 15 and low-temperature furnace smoke extracted by a dust remover 18, dried exhaust gas enters the dust remover 18, dried biomass powder is sent into a dry biomass powder bin 6 for storage, then enters a biomass forming machine 7 for compression forming, and finally is stored in a forming fuel storage bin 8.
When the biomass fuel is blended and burned, the biomass briquette fuel in the briquette fuel storage bin 8 enters the standby coal pulverizing system of the coal-fired boiler through the coal conveying belt 9 to be pulverized, and finally enters the combustor 13 to be combusted.
In order to prevent the biomass from spontaneously combusting in the pulverizing system, the inlet air temperature of the coal mill 12 is controlled not to exceed 100 ℃, and the outlet air temperature is controlled not to exceed 50 ℃, so that the biomass fuel does not have a moisture evaporation process in the coal mill 12.
The moisture of the biomass raw material is generally 30-45%, and in order to enable the biomass powder to be easily molded, the moisture of the molding raw material needs to be controlled to be 15-20%. In addition, when the inlet air temperature of the coal mill 12 does not exceed 100 ℃, the biomass molding material has no water evaporation process in the coal mill 12, and if the water content is too high, the problems of blockage and reduced output of the coal mill 12 are easily caused.
For explosion prevention, a path of cold flue gas is additionally arranged at the inlet of the coal mill 12 and is used as blowing air when the mill is started or stopped or used as blowing medium when a fire accident is treated.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A power generation system using a standby coal mill to directly combust and couple biomass briquette fuel is characterized by comprising a biomass raw material storage bin (1), a first crusher (2), a second crusher (3), a wet biomass powder bin (4), a dryer (5), a dry biomass powder bin (6), a biomass forming machine (7), a briquette fuel storage bin (8), a raw coal bin (10), a coal feeder (11), a coal mill (12), a burner (13), a boiler furnace (14), a steering chamber (15), an air preheater (16), a primary fan (17), a dust remover (18) and a hot furnace smoke fan (20);
an outlet of the biomass raw material storage bin (1) is communicated with an inlet of a first crusher (2), an outlet of the first crusher (2) is communicated with an inlet of a second crusher (3), an outlet of the second crusher (3) is communicated with an inlet of a wet biomass powder bin (4), an outlet of the wet biomass powder bin (4) is communicated with a fuel side inlet of a dryer (5), a fuel side outlet of the dryer (5) is communicated with an inlet of a dry biomass powder bin (6), an outlet of the dry biomass powder bin (6) is communicated with an inlet of a biomass forming machine (7), an outlet of the biomass forming machine (7) is communicated with an inlet of a formed fuel storage bin (8), an outlet of a raw coal bin (10) is communicated with an inlet of a coal feeder (11), an outlet of the coal feeder (11) is communicated with a fuel side inlet of a coal mill (12), and a fuel side outlet of the coal mill (12) is communicated with a combustor (13) on a boiler hearth (14);
a heat-extraction furnace smoke hole is formed in the position of the turning chamber (15), a cold-extraction furnace smoke hole is formed in the dust remover (18), the heat-extraction furnace smoke hole in the turning chamber (15) is communicated with an inlet of a hot-extraction furnace smoke fan (20), the cold-extraction furnace smoke hole in the dust remover (18) is divided into two paths, one path of the two paths is communicated with a hot air pipeline on the drying medium side of the coal mill (12), the other path of the two paths is communicated with an inlet on the drying medium side of the dryer (5) after being connected with an outlet of the hot-extraction furnace smoke fan (20) through a pipeline in parallel, and an outlet on the drying medium side of the dryer (5) is communicated with the inlet of the dust remover (18);
the outlet of the primary air fan (17) is divided into two paths, wherein one path is communicated with the inlet of the primary air side of the air preheater (16), the other path is communicated with the cold air pipeline on the drying medium side of the coal mill (12), and the outlet of the primary air side of the air preheater (16) is communicated with the cold air pipeline on the drying medium side of the coal mill (12).
2. The power generation system using the standby coal mill to directly combust and couple the biomass briquette fuel, as claimed in claim 1, wherein the outlet of the briquette fuel storage silo (8) is communicated with the inlet of the raw coal silo (10) via a coal belt (9).
3. The power generation system using the standby coal mill to directly combust and couple the biomass briquette fuel is characterized in that a smoke outlet of the cooling furnace on the dust remover (18) is divided into two paths after passing through a smoke fan (19) of the cooling furnace.
4. The power generation system using the standby coal mill for direct-fired coupling of biomass briquette fuel as claimed in claim 1, wherein the primary air side outlet of the air preheater (16) is communicated with the cold air duct on the drying medium side of the coal mill (12) through an air duct.
5. The power generation system using the backup coal mill for direct combustion and coupling of biomass briquette as claimed in claim 3, wherein the inlet of the cold-furnace smoke blower (19), the inlet of the hot-furnace smoke blower (20) and the hot-air duct on the drying medium side of the coal mill (12) are provided with an isolation door and an adjustment door.
6. The power generation system using the backup coal mill for direct combustion coupling of biomass briquette fuel according to claim 1, characterized in that an isolation door is provided at the inlet of the burner (13).
7. The power generation system using the backup coal mill for direct combustion and coupling of biomass briquette fuel as claimed in claim 3, wherein a pressure gauge and a temperature gauge are arranged at the inlet of the cold-furnace smoke blower (19), the inlet of the hot-furnace smoke blower (20), the cold-air pipeline and the hot-air pipeline at the drying medium side of the coal mill (12), the drying medium side inlet of the dryer (5) and the inlet of the burner (13).
8. The power generation system using the backup coal mill for direct-fired coupling of biomass briquette fuel as claimed in claim 3, wherein the number of the cold furnace fume fan (19) and the hot furnace fume fan (20) is two, and the operation mode of one backup is adopted.
9. The power generation system using the standby coal mill to directly combust and couple the biomass briquette fuel is characterized in that an iron removal device is arranged between the first crusher (2) and the second crusher (3).
10. A power generation method for directly burning and coupling biomass briquette fuel by using a standby coal mill is characterized by comprising the following steps:
the method comprises the following steps that original biomass output by a biomass raw material storage bin (1) is sent into a first crusher (2) to be primarily crushed to be smaller than 50-100 mm, then sent into a second crusher (3) to be crushed to be smaller than 2-5 mm, and crushed biomass powder enters a wet biomass powder bin (4) to be stored; wet saw dust in a wet biomass powder bin (4) enters a dryer (5) for drying, a drying medium in the dryer (5) is a mixed medium of high-temperature furnace smoke extracted from a turning chamber (15) and low-temperature furnace smoke extracted from a dust remover (18), dried exhaust gas enters the dust remover (18), dried biomass powder is sent into a dry biomass powder bin (6) for storage, then enters a biomass forming machine (7) for compression forming, and finally is stored in a forming fuel storage bin (8);
when the biomass fuel is blended and burned, the biomass briquette fuel in the briquette fuel storage bin (8) enters a combustor (13) for combustion through a coal conveying belt (9), a raw coal bin (10) and a coal feeder (11).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918038A (en) * | 2017-04-27 | 2017-07-04 | 东方电气集团东方锅炉股份有限公司 | A kind of biomass fuel combustion with reduced pollutants system with blower mill powder |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079830A (en) * | 2007-09-26 | 2009-04-16 | Babcock Hitachi Kk | Solid fuel crushing supply device and method |
| JP2010107165A (en) * | 2008-10-31 | 2010-05-13 | Miike Iron Works Co Ltd | Biomass fuel burner |
| CN102155744A (en) * | 2010-12-22 | 2011-08-17 | 上海锅炉厂有限公司 | System for pre-drying coal with high water content by utilizing residual heat of boiler gas |
| CN103343954A (en) * | 2013-07-29 | 2013-10-09 | 华北电力大学 | Quality-improved lignite combustion or blending combustion system |
| CN105276608A (en) * | 2015-11-06 | 2016-01-27 | 西安热工研究院有限公司 | Lignite drying residual heat and water recovery system |
| CN105733627A (en) * | 2016-04-01 | 2016-07-06 | 华中科技大学 | Biomass rapid pyrolysis and coal-fired boiler coupling system |
| CN105889909A (en) * | 2016-05-31 | 2016-08-24 | 中国华能集团清洁能源技术研究院有限公司 | Large fluidized bed boiler blending combustion system |
| CN109054873A (en) * | 2018-06-06 | 2018-12-21 | 西安交通大学 | A kind of biomass boiler system of included biomass upgrading function |
| CN109959023A (en) * | 2019-04-17 | 2019-07-02 | 西安西热锅炉环保工程有限公司 | It is a kind of using furnace cigarette as the unit pulverized-coal system of dried medium and method |
| CN113154432A (en) * | 2021-04-23 | 2021-07-23 | 西安热工研究院有限公司 | Biomass power generation system and method coupled with coal burner unit |
-
2021
- 2021-07-28 CN CN202110858353.5A patent/CN113446616A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079830A (en) * | 2007-09-26 | 2009-04-16 | Babcock Hitachi Kk | Solid fuel crushing supply device and method |
| JP2010107165A (en) * | 2008-10-31 | 2010-05-13 | Miike Iron Works Co Ltd | Biomass fuel burner |
| CN102155744A (en) * | 2010-12-22 | 2011-08-17 | 上海锅炉厂有限公司 | System for pre-drying coal with high water content by utilizing residual heat of boiler gas |
| CN103343954A (en) * | 2013-07-29 | 2013-10-09 | 华北电力大学 | Quality-improved lignite combustion or blending combustion system |
| CN105276608A (en) * | 2015-11-06 | 2016-01-27 | 西安热工研究院有限公司 | Lignite drying residual heat and water recovery system |
| CN105733627A (en) * | 2016-04-01 | 2016-07-06 | 华中科技大学 | Biomass rapid pyrolysis and coal-fired boiler coupling system |
| CN105889909A (en) * | 2016-05-31 | 2016-08-24 | 中国华能集团清洁能源技术研究院有限公司 | Large fluidized bed boiler blending combustion system |
| CN109054873A (en) * | 2018-06-06 | 2018-12-21 | 西安交通大学 | A kind of biomass boiler system of included biomass upgrading function |
| CN109959023A (en) * | 2019-04-17 | 2019-07-02 | 西安西热锅炉环保工程有限公司 | It is a kind of using furnace cigarette as the unit pulverized-coal system of dried medium and method |
| CN113154432A (en) * | 2021-04-23 | 2021-07-23 | 西安热工研究院有限公司 | Biomass power generation system and method coupled with coal burner unit |
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