CN101799168A - Biomass power generation integrated system method - Google Patents
Biomass power generation integrated system method Download PDFInfo
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- CN101799168A CN101799168A CN200910050492A CN200910050492A CN101799168A CN 101799168 A CN101799168 A CN 101799168A CN 200910050492 A CN200910050492 A CN 200910050492A CN 200910050492 A CN200910050492 A CN 200910050492A CN 101799168 A CN101799168 A CN 101799168A
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Abstract
The invention discloses a biomass power generation integrated system method, which belongs to the field of biomass power generation. The biomass power generation system method comprises the following steps: firstly, collecting, crushing and packing straws; secondly, conveying the straws to a straw storage, an intermediate bin and a front furnace bin in turn; and finally, conveying the straws to a boiler feeding hole. A biomass power generation system device adopts a grab machine, a crusher, a spiral conveyor, the straw storage, the intermediate bin, the front furnace bin, the boiler feeding hole and the like, wherein the crusher is a special crusher for the straws; the spiral conveyor is provided with a metering device; the bottom of the straw storage is provided with a movable bottom sliding rack so that the straws are conveyed more smoothly; and the intermediate bin and the front furnace bin are provided with an arch breaking device and a stirring device to eliminate the bridging phenomenon. Because of the method and the device in the invention are adopted, the efficiency of biomass straw power generation is greatly improved, and a straw charging system is safer and more reliable.
Description
Technical field:
The invention belongs to the biomass power generation field, and be particularly related to a kind of integrated system method and device that utilizes the biomass straw generating.
Background technology:
Biomass power generation factory is meant by the power plant of one or more plant wastes such as burning rice straw, straw, cornstalk, fruit tree branch, forestry branch in order to generating.Wherein rice straw, straw etc. are called soft stalk, and fruit tree branch, forestry branch etc. is called hard stalk.
The stalk of biomass power generation factory is generally purchased by each gathering station that power plant is provided with at present, and gathering station is transported to power plant afterwards with stalk fragmentation, the packing of purchase, and a spot of stalk is directly purchased and handled by power plant.In power plant, all be provided with stalk bin, stalk crushing system and stalk feeding system usually.Stalk is broken into is convenient to carry and equipment that burn, dimensions combination is referred to as the stalk crushing system, the normally used equipment of stalk crushing system has grab claw, disintegrating machine and belt conveyor.The stalk feeding system is meant stalk is transported in bin, is delivered to a whole set of equipment combination of stokehold charging aperture at last, and the normally used equipment of stalk feeding system has belt conveyor, stokehold feed bin and conveying worm.Material-uploading style has material loading in bulk and packs two kinds of material loadings, looks the form of material and selects.
At present, domestic biomass power generation factory can normally move seldom, main cause is in the feeding system, mainly contain following problem: 1, the dimensions of fuel has crucial effects to the normal operation of boiler, influence the efficient of whole system operation, particularly CFBB is owing to the restriction of its operation logic, quite strict for the specification requirement of fuel.Yet because biological energy power plant still is in the starting stage in that China is domestic, not at the biological energy power plant boiler combustion and specially designed straw crusher uses the disintegrating machine of other industry must satisfy process requirements.2, in the stalk storage process, owing to overstock for a long time, " bridge formation " phenomenon can appear in the storehouse.So-called " bridge formation " phenomenon is because the stalk in the bin overstocks through long, make in the storehouse certain section stalk gradually compacting form an integral body, even should integral body after the stalk of below goes out by discharging opening, this integral body causes stalk normally to enter in the conveying worm because the tension force mutually can't descend.3, because the stalk caloric value is low, burning-point is low, if inlet amount can not effectively be controlled, then can influence boiler and normally move, material loading for a long time, boiler load increases, material loading after a little while, boiler load reduces, and how many boilers fluctuates with the feeding system convey materials, very responsive.
Summary of the invention:
The object of the present invention is to provide a kind of biomass power generation integrated system method and device, with what exist in the feeding system that solves traditional biomass power generation: the size of fuel is specification not, " bridge formation " phenomenon appears in stalk easily, and problem such as boiler load instability.
To achieve these goals, technical scheme of the present invention is such:
Biomass power generation integrated system method comprises the steps:
(1) straw collecting, fragmentation, packing, the straw collecting station purchase stalk that power plant is provided with, and, after packing, be transported to power plant again with the straw utilization crusher in crushing up to specification of purchasing;
(2) deliver to the stalk bin, store through the stalk bin that the packaged stalk of step (1) is delivered to power plant by waggon;
(3) loosening stalk, stalk bin bottom is provided with a false bottom balladeur train, and this false bottom balladeur train is used for the stalk that overstock loosening stalk bin bottom, evenly to deliver to stalk on the belt conveyor;
(4) deliver to intermediate bin, the stalk in the stalk bin is delivered to intermediate bin by belt conveyor;
(5) prevent stalk " bridge formation ", be provided with an arch breaking apparatus in the intermediate bin, be used to avoid stalk " bridge formation " in the storehouse;
(6) deliver to the stokehold feed bin, the stalk in the intermediate bin is delivered to the stokehold feed bin by belt conveyor;
(7) flowability of increase bottom stalk, feed bin bottom in stokehold is provided with an agitating device, is used to increase the flowability of bottom stalk, makes stalk enter on the conveying worm swimmingly;
(8) deliver to the boiler feed mouth, the stalk in the feed bin of stokehold is delivered to the boiler feed mouth via the conveying worm of stokehold feed bin bottom;
Be provided with an arch breaking apparatus in the intermediate bin in the described step (5), be used to avoid stalk " bridge formation " in the storehouse.
Be provided with an arch breaking apparatus in the stokehold feed bin in the described step (6), be used to avoid stalk " bridge formation " in the storehouse.
Be provided with a metering device in the conveying worm in the described step (8), be used for controlling the inlet amount of stalk according to the fuel signal in the boiler.
The biomass power generation integrated system device comprises stalk crushing system, stalk feeding system, and described stalk crushing system is used for stalk fragmentation, packing, delivers to described stalk feeding system through waggon again; Described stalk crushing system comprises grab claw, disintegrating machine; Described stalk feeding system comprises conveying worm, stalk bin, intermediate bin, stokehold feed bin, boiler feed mouth; Described stalk bin links to each other with described intermediate bin via belt conveyor, and described intermediate bin links to each other with described stokehold feed bin via belt conveyor, and feed bin bottom in described stokehold is provided with described conveying worm, and described conveying worm links to each other with described boiler feed mouth; Described stalk bin bottom is provided with a false bottom balladeur train that is used for the stalk that overstocks loosening stalk bin bottom, is equipped with the arch breaking apparatus of avoiding stalk " bridges formation " in described intermediate bin and the described stokehold feed bin, is provided with an agitating device bottom the feed bin of described stokehold; Described intermediate bin bottom is provided with an agitating device.
Be provided with a metering device in the described conveying worm.
Described metering device, arch breaking apparatus, agitating device, false bottom balladeur train are produced for the design of SHW company, and its product is existing numerous achievements of stalk industry and practical operating experiences for many years abroad, and corresponding achievement is also arranged at home, is the technology of mature and reliable.
Be provided with screen cloth in the described disintegrating machine, described screen cloth will not meet the stalk circulation fragmentation of boiler requirement.
Described breaker bar adopts the separate type blade, and promptly rotor separates with blade, with replacing for convenience detach.
Compare with traditional biomass power generation system, the present invention has following significant advantage:
1, transforms existing straw crusher, make its crushed straws size conforms boiler oil requirement;
2, conveying worm is set up metering device, according to boiler operatiopn operating mode control stalk inlet amount, when boiler load reduces, increases the stalk inlet amount; When boiler load increases, reduce the stalk inlet amount, it is stable that boiler load is remained;
3, the false bottom balladeur train is set up in stalk bin bottom, and it is more smooth and easy that stalk is carried;
4, intermediate bin and stokehold feed bin are set up arch breaking apparatus and agitating device, eliminate " bridge formation " phenomenon.
Beneficial effect: 1, the disintegrating machine of the present invention's employing is the special-purpose disintegrating machine of forestry, and is provided with screen cloth that the stalk circulation that can not meet the boiler requirement is broken, has guaranteed to go into the dimensional requirement of stove stalk.Breaker bar adopts the separate type blade, and promptly rotor separates with blade, and replacing for convenience detach has promoted the service efficiency of disintegrating machine greatly; 2, native system can mix the soft stalk of part and carries out fuel, can in the hard stalk supply in emergency circumstances burn soft stalk, and fuel diversity can guarantee the normal operation continuously of boiler; 3, the conveying worm of native system is provided with metering device, can control fuel in real time and go into the stove amount, can regulate in real time according to the operating condition of boiler, has guaranteed the stable operation of boiler; 4, native system key equipment all is provided with two covers as disintegrating machine, conveyer, stokehold feed bin, and is standby each other, improved the reliability of whole system; 5, the false bottom carriage system of native system stalk bin bottom, smoothness when helping stalk and advancing belt conveyor has improved the efficient that stalk is carried; 6, native system is provided with intermediate bin, and its storage capacity can satisfy the requirement of power plant's operation at night, has reduced the intensity that the workman works at night, and has reduced the influence degree of power plant's operation at night to the surrounding resident life; 7, the intermediate bin of native system and stokehold feed bin are provided with arch breaking apparatus and bottom agitating device, have improved the reliability of stalk feeding system.
Description of drawings:
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is a stalk bin surface structure schematic diagram of the present invention;
Fig. 2 is an intermediate bin surface structure schematic diagram of the present invention;
Fig. 2 is the surface structure schematic diagram of stokehold of the present invention feed bin, boiler;
Fig. 4 is the workflow diagram of biomass power generation integrated system method of the present invention.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Embodiment:
Referring to Fig. 1, stalk bin 1 top is provided with discharging rain shade 2, and material rain shade 2 is used to stalk to keep out wind and rain, in case stalk is rotten.Stalk bin 1 bottom is provided with false bottom balladeur train 4, and false bottom balladeur train 4 is provided with balladeur train pull bar 3.Stalk bin 1 bottom is provided with belt conveyor 5, and belt conveyor 5 is used for stalk is delivered to intermediate bin.Smoothness when false bottom balladeur train 4 helps stalk and advances belt conveyor 5 has improved the efficient that stalk is carried.
Referring to Fig. 2, be provided with an arch breaking apparatus 7 in the intermediate bin 6, arch breaking apparatus 7 is used to avoid stalk " bridge formation " in the storehouse; The bottom of intermediate bin 6 is provided with belt conveyor 9, and belt conveyor 9 is used for the stalk in the intermediate bin 6 is delivered to the stokehold feed bin.Feed bin 10 bottoms in stokehold are provided with an agitating device 81, and agitating device 81 is used to increase the flowability of bottom stalk, and stalk is entered on the belt conveyor 9 swimmingly.
Referring to Fig. 3, also be provided with an arch breaking apparatus 71 in the stokehold feed bin 10, arch breaking apparatus 71 is used to avoid stalk " bridge formation " in the storehouse; Feed bin 10 bottoms in stokehold are provided with an agitating device 81, and agitating device 81 is used to increase the flowability of bottom stalk, and stalk is entered on the conveying worm 12 swimmingly.Stalk in the stokehold feed bin 10 is delivered to boiler 13 charging apertures via the conveying worm 12 of stokehold feed bin 10 bottoms.Be provided with metering device 11 in the conveying worm 12, metering device 11 when boiler 10 loads reduce, increases the stalk inlet amount according to boiler 10 operating conditions control stalk inlet amount; When boiler 10 loads increase, reduce the stalk inlet amount, make boiler 10 loads remain stable.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the straw collecting station 15 that power plant is provided with is with stalk straw crusher 14 fragmentations of purchase, the disintegrating machine that the present invention adopts, be the special-purpose disintegrating machine of forestry, and be provided with screen cloth, can the stalk circulation that not meet the boiler requirement is broken, guaranteed to go into the dimensional requirement of stove stalk.Breaker bar adopts the separate type blade, and promptly rotor separates with blade, and replacing for convenience detach has promoted the service efficiency of disintegrating machine greatly.Treat again crushed straws to be packed after the stalk fragmentation, and deliver to stalk bin 1 in the power plant with special conveying.Stalk bin 1 bottom is provided with a false bottom balladeur train 4, be provided with a belt conveyor 5 below the false bottom balladeur train 4, belt conveyor 5 is used for stalk is delivered to intermediate bin 6, and false bottom balladeur train 4 is used for the stalk that overstock loosening stalk bin 1 bottom, so that stalk is evenly delivered on the belt conveyor 5.
Be provided with an arch breaking apparatus 7 in the intermediate bin 6, arch breaking apparatus 7 is used to avoid stalk " bridge formation " in the storehouse; The bottom of intermediate bin 6 is provided with belt conveyor 9, and belt conveyor 9 is used for the stalk in the intermediate bin 6 is delivered to stokehold feed bin 10.Intermediate bin 6 bottoms are provided with an agitating device 8, and agitating device 8 is used to increase the flowability of bottom stalk, and stalk is entered on the belt conveyor 9 swimmingly.Also be provided with an arch breaking apparatus 71 in the stokehold feed bin 10, arch breaking apparatus 71 is used to avoid stalk " bridge formation " in the storehouse; Feed bin 10 bottoms in stokehold are provided with an agitating device 81, and agitating device 81 is used to increase the flowability of bottom stalk, and stalk is entered on the conveying worm 12 swimmingly.Stalk in the stokehold feed bin 10 is delivered to boiler 13 charging apertures via the conveying worm 12 of stokehold feed bin 10 bottoms.Be provided with metering device 11 in the conveying worm 12, metering device 11 when boiler 10 loads reduce, increases the stalk inlet amount according to boiler 10 operating conditions control stalk inlet amount; When boiler 10 loads increase, reduce the stalk inlet amount, make boiler 10 loads remain stable.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. biomass power generation integrated system method is characterized in that, it comprises the steps:
(1) straw collecting, fragmentation, packing, the straw collecting station purchase stalk that power plant is provided with, and, after packing, be transported to power plant again with the straw utilization crusher in crushing up to specification of purchasing;
(2) deliver to the stalk bin, store through the stalk bin that the packaged stalk of step (1) is delivered to power plant by waggon;
(2) loosening stalk, stalk bin bottom is provided with a false bottom balladeur train, and this false bottom balladeur train is used for the stalk that overstock loosening stalk bin bottom, evenly to deliver to stalk on the belt conveyor;
(3) deliver to intermediate bin, the stalk in the stalk bin is delivered to intermediate bin by belt conveyor;
(4) prevent stalk " bridge formation ", be provided with an arch breaking apparatus in the intermediate bin, be used to avoid stalk " bridge formation " in the storehouse;
(5) deliver to the stokehold feed bin, the stalk in the intermediate bin is delivered to the stokehold feed bin by belt conveyor;
(6) flowability of increase bottom stalk, feed bin bottom in stokehold is provided with an agitating device, is used to increase the flowability of bottom stalk, makes stalk enter on the conveying worm swimmingly;
(8) deliver to the boiler feed mouth, the stalk in the feed bin of stokehold is delivered to the boiler feed mouth via the conveying worm of stokehold feed bin bottom;
2. biomass power generation integrated system method according to claim 1 is characterized in that, is provided with an arch breaking apparatus in the intermediate bin in the described step (5), is used to avoid stalk " bridge formation " in the storehouse.
3. biomass power generation integrated system method according to claim 1 is characterized in that, is provided with an arch breaking apparatus in the stokehold feed bin in the described step (6), is used to avoid stalk " bridge formation " in the storehouse.
4. biomass power generation integrated system method according to claim 1 is characterized in that, is provided with a metering device in the conveying worm in the described step (8), is used for controlling according to the fuel signal in the boiler inlet amount of stalk.
5. the biomass power generation integrated system device comprises stalk crushing system, stalk feeding system, and described stalk crushing system is used for stalk fragmentation, packing, delivers to described stalk feeding system through waggon again; Described stalk crushing system comprises grab claw, disintegrating machine; Described stalk feeding system comprises conveying worm, stalk bin, intermediate bin, stokehold feed bin, boiler feed mouth; Described stalk bin links to each other with described intermediate bin via belt conveyor, and described intermediate bin links to each other with described stokehold feed bin via belt conveyor, and feed bin bottom in described stokehold is provided with described conveying worm, and described conveying worm links to each other with described boiler feed mouth; It is characterized in that, described stalk bin bottom is provided with a false bottom balladeur train that is used for the stalk that overstocks loosening stalk bin bottom, be equipped with the arch breaking apparatus of avoiding stalk " bridge formation " in described intermediate bin and the described stokehold feed bin, feed bin bottom in described stokehold is provided with an agitating device; Described intermediate bin bottom is provided with an agitating device.Be provided with a metering device in the described conveying worm.
6. biomass power generation integrated system device according to claim 5, it is characterized in that, described metering device, arch breaking apparatus, agitating device, false bottom balladeur train are produced for the design of SHW company, its product stalk industry has abroad had numerous achievements and practical operating experiences for many years, corresponding achievement is also arranged at home, be the technology of mature and reliable.
7. biomass power generation integrated system device according to claim 5 is characterized in that, is provided with screen cloth in the described disintegrating machine, and described screen cloth will not meet the stalk circulation fragmentation of boiler requirement.
8. biomass power generation integrated system device according to claim 5 is characterized in that, described breaker bar adopts the separate type blade, and promptly rotor separates with blade, with replacing for convenience detach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910050492A CN101799168A (en) | 2009-05-04 | 2009-05-04 | Biomass power generation integrated system method |
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| CN200910050492A CN101799168A (en) | 2009-05-04 | 2009-05-04 | Biomass power generation integrated system method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566342A (en) * | 2014-10-20 | 2015-04-29 | 长春工业大学 | Straw direct-fired heat supply device |
| CN110229700A (en) * | 2019-04-19 | 2019-09-13 | 武汉凯迪电力工程有限公司 | Diversity gasification of biomass positive pressure feeding system |
-
2009
- 2009-05-04 CN CN200910050492A patent/CN101799168A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566342A (en) * | 2014-10-20 | 2015-04-29 | 长春工业大学 | Straw direct-fired heat supply device |
| CN110229700A (en) * | 2019-04-19 | 2019-09-13 | 武汉凯迪电力工程有限公司 | Diversity gasification of biomass positive pressure feeding system |
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Open date: 20100811 |