CN103256592B - Reciprocating feeding device of circulating fluidized bed boiler burning biomass - Google Patents
Reciprocating feeding device of circulating fluidized bed boiler burning biomass Download PDFInfo
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- CN103256592B CN103256592B CN201310187232.8A CN201310187232A CN103256592B CN 103256592 B CN103256592 B CN 103256592B CN 201310187232 A CN201310187232 A CN 201310187232A CN 103256592 B CN103256592 B CN 103256592B
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- biomass
- barrel
- speed reducer
- reductor
- charging barrel
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a reciprocating feeding device of a circulating fluidized bed boiler burning biomass. The reciprocating feeding device is mainly composed of a speed reducer, a hopper, a charging barrel, a feeding piston and a foundation bottom plate, wherein the hopper is located above the charging barrel, the speed reducer is connected with the feeding piston by a connecting rod and connecting rings, a rocker arm is located on the speed reducer, the charging barrel is internally provided with a slideway, the feeding piston is composed of a sliding connecting rod, pulley supports and pulleys, the pulleys are connected with the pulley supports, and the feeding piston can carry out reciprocating motion along the slideway; balancing bottom springs are arranged on the upper part of the foundation bottom plate, a bracket and a speed reducer bottom plate are arranged on the upper part of the balancing bottom springs, the speed reducer and the charging barrel are located above the speed reducer bottom plate; and a charging barrel casting and a sealed main pipe are arranged at the front part of the charging barrel, and the sealed main pipe is composed of a sealed header and sealed branch pipes. According to the reciprocating feeding device disclosed by the invention, the technical problems that when the biomass circulating fluidized bed boiler burns a biomass fuel, the feeding is blocked and accumulated are solved, the positive pressure in a furnace chamber is overcame, so that the biomass fuel can successfully enter into the furnace chamber to burn, and the feeding equipment is burned out by back-scurried high-temperature smoke which is formed by deflagration of materials in a feed inlet is effectively avoided, so that the safe operation of the boiler is ensured.
Description
Technical field
The invention belongs to CFBB feeding system technical field, relate to the reciprocating charging gear of a kind of biomass-burning CFBB.
Background technology
Along with growing to energy demand of society, find the focus that a kind of reproducible alternative energy source becomes social common concern, and biomass energy is a kind of reproducible energy.Current available biomass fuel has common ground, i.e. combustible basis fugitive constituent very high (more than 80%), and fuel bulk density is little, is easy to catch fire and aptitude to burn.
At present, the stokehold feeding system of biomass recirculating fluidized bed boiler, be designed to material and enter dispenser from feed bin by screw(-type) feeder, burner hearth is sent into uniformly by sealing air, material seeding wind, because biomass fuel bulk density is little, mobility is very poor, often there is putty, fracture in charging gear in running, had a strong impact on the stable operation of boiler; Simultaneously, biomass recirculating fluidized bed boiler is operation under positive pressure, charging aperture is in the zone of positive pressure of boiler, because biomass fuel fugitive constituent is high, catch fire, burn rapidly, if feed is uneven, very easily produces at material inlet and pile up deflagration, form the high malleation in local, cause furnace high-temperature flue gas to return and scurry into dispenser, jeopardize the safety of feeding device.
Summary of the invention
The technical barrier that the biomass recirculating fluidized bed boiler charging gear that the object of the invention is to solve prior art produces, there is provided a kind of biomass-burning CFBB reciprocating charging gear, feed blocking during to solve biomass recirculating fluidized bed boiler burning-used biologic mass fuel, the technical problem of piling up, and effectively prevent and return to alter burn feeding device because charging aperture materiel deflagrating forms high-temperature flue gas, ensure that the safer operation of boiler.
The present invention is the technical scheme solving the problems of the technologies described above employing:
The reciprocating charging gear of a kind of biomass-burning CFBB, form primarily of reductor, hopper, barrel, feed piston and sole plate, hopper is positioned at above barrel, reductor is connected by connecting rod and connecting ring with feed piston; rocking arm is positioned on reductor, it is characterized in that: described barrel inside has slideway, and described feed piston is made up of slide link, pulley bracket and pulley; pulley is connected with pulley bracket, and feed piston can move back and forth along slideway.
Described sole plate top is provided with balance end spring, and balance spring top, the end has bracket and reductor base plate, and reductor and barrel are positioned at above reductor base plate.
Described cartridge front portion has barrel foundry goods and sealing house steward, and sealing house steward forms by sealing header and sealing arm.
Beneficial effect of the present invention is, the reciprocating charging gear of a kind of biomass-burning CFBB, structure is simple, processing and manufacturing is easy, assembling and easy for installation, feed blocking when solving biomass recirculating fluidized bed boiler burning-used biologic mass fuel, the technical problem of piling up, overcome malleation in burner hearth, make biomass fuel enter hearth combustion smoothly, and effectively prevent and return to alter burn feeding device because charging aperture materiel deflagrating forms high-temperature flue gas, ensure that the safer operation of boiler.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure 1, reductor 2, rocking arm 3, connecting rod 4, slideway 5, connecting ring 6, slide link 7, pulley bracket 8, pulley 9, hopper 10, material letter 11, barrel foundry goods 12, sealing house steward 13, sealing header 14, sealing arm 15, sole plate 16, balance end spring 17, feed piston 18, bracket 19, reductor base plate
Detailed description of the invention
With reference to accompanying drawing 1, the present invention includes: reductor 1, hopper 9, barrel 10 and feed piston 17, hopper 9 is positioned at above barrel 10, and it is inner that slideway 4 is positioned at barrel 10, and rocking arm 2 is positioned on reductor 1; Reductor 1 is connected by connecting rod 3 and connecting ring 5 with feed piston 17, and feed piston 17 is made up of slide link 6, pulley bracket 7 and pulley 8, and pulley 8 is connected with pulley bracket 7, and feed piston 17 can move back and forth along slideway 4; Barrel 10 front portion has barrel foundry goods 11 and sealing house steward 12, and sealing house steward 12 is made up of sealing header 13 and sealing arm 14; Sole plate 15 top is provided with balance end spring 16, and balance spring 16 top, the end has bracket 18 and reductor base plate 19, and reductor 1 and barrel 10 are positioned at above reductor base plate 19.
Operation principle of the present invention: when reductor 1 rotates counterclockwise, feed piston 17 moves along slideway 4 to reductor 1 direction, fall into the biomass fuel of hopper 9 like this owing to entering hopper 9 under the effect of gravity, slow down, when the rocking arm 2 of 1 rotates one week, feed piston 17 moves along slideway 4 to reductor 1 rightabout, and enter the biomass fuel of barrel 10 like this owing to promoting to barrel foundry goods 11 direction under the effect of feed piston 17 thrust, reciprocating charging gear completes a work period.
Reciprocating charging gear initiatively stops or when again starting at every turn, feed piston 17 is positioned at the spacing farthest with reductor 1, the return load of reciprocating like this charging gear is lighter, less demanding to detent torque, and after each initiatively parking, the feed piston 17 of reciprocating charging gear is all in the barrel 10 of hopper 9 front end, can effectively prevent the pyrotechnics after stopping in barrel 10 biomass fuel combustion rear hearth from spraying along barrel 10.
In reciprocating charging gear, feed piston 17 is connected by pulley 8 with slideway 4, can reduce coefficient of friction, and then reduces resistance, the useful life of extension fixture, ensures stable operation of the boiler.
Sole plate 15 top of reciprocating charging gear is provided with balance end spring 16, can adjust the coefficient of expansion between reciprocating charging gear and boiler, makes barrel 10 and barrel foundry goods 11 keep sealing, makes the smooth and easy boiler internal that enters of biomass fuel participate in burning.
The sealing house steward 12 that air forms via sealing header 13 and sealing arm 14 enters burner hearth, can effectively prevent and alter because barrel foundry goods 11 place materiel deflagrating formation high-temperature flue gas returns, extend the service life of barrel foundry goods 11.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (3)
1. the reciprocating charging gear of biomass-burning CFBB, form primarily of reductor, hopper, barrel, feed piston and sole plate, hopper is positioned at above barrel, reductor is connected by connecting rod and connecting ring with feed piston; rocking arm is positioned on reductor, it is characterized in that: described barrel inside has slideway, and described feed piston is made up of slide link, pulley bracket and pulley; pulley is connected with pulley bracket, and feed piston can move back and forth along slideway.
2. the reciprocating charging gear of a kind of biomass-burning CFBB according to claim 1, it is characterized in that: described sole plate top is provided with balance end spring, balance spring top, the end has bracket and reductor base plate, and reductor and barrel are positioned at above reductor base plate.
3. the reciprocating charging gear of a kind of biomass-burning CFBB according to claim 1, is characterized in that: described cartridge front portion has barrel foundry goods and sealing house steward, and sealing house steward forms by sealing header and sealing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310187232.8A CN103256592B (en) | 2013-05-11 | 2013-05-11 | Reciprocating feeding device of circulating fluidized bed boiler burning biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310187232.8A CN103256592B (en) | 2013-05-11 | 2013-05-11 | Reciprocating feeding device of circulating fluidized bed boiler burning biomass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256592A CN103256592A (en) | 2013-08-21 |
| CN103256592B true CN103256592B (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310187232.8A Expired - Fee Related CN103256592B (en) | 2013-05-11 | 2013-05-11 | Reciprocating feeding device of circulating fluidized bed boiler burning biomass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103256592B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860087B (en) * | 2015-03-24 | 2017-01-25 | 太原理工大学 | Linear motor-driven coal feeder, and control device for reciprocating coal feeder |
| CN108216960A (en) * | 2018-03-05 | 2018-06-29 | 农业部规划设计研究院 | A kind of pyrolytic carbon gas coproduction sealed feeder unit and its feed process |
| CN109605817B (en) * | 2019-02-01 | 2024-09-20 | 中国科学技术大学 | Reciprocating type continuous pressurizing feeding device and method for biomass |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191301067A (en) * | 1913-01-14 | 1913-06-12 | Robert Sanford Riley | Improvements in Mechanical Stokers. |
| GB216220A (en) * | 1923-02-24 | 1924-05-26 | William John Hubert Diplock | Improvements in or relating to underfeed mechanical stokers |
| CN101559869A (en) * | 2008-04-16 | 2009-10-21 | 北京航天长峰股份有限公司 | Bidirectional feed chute of refuse transfer station |
| CN201415865Y (en) * | 2009-05-20 | 2010-03-03 | 郭呈真 | Automatic feeder of gasification furnace utilizing waste plastics and discarded tires for oil refining |
| CN102913935A (en) * | 2012-10-24 | 2013-02-06 | 武汉凯迪电力工程有限公司 | Furnace-free front storage bin feeding device for biomass power plant |
| CN203249239U (en) * | 2013-05-11 | 2013-10-23 | 费县上源热电有限责任公司 | Reciprocating type feeding device for biomass-fired circulating fluidized bed boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2247726A (en) * | 1939-07-15 | 1941-07-01 | Carl E Gingher | Stoker pusher rod |
-
2013
- 2013-05-11 CN CN201310187232.8A patent/CN103256592B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191301067A (en) * | 1913-01-14 | 1913-06-12 | Robert Sanford Riley | Improvements in Mechanical Stokers. |
| GB216220A (en) * | 1923-02-24 | 1924-05-26 | William John Hubert Diplock | Improvements in or relating to underfeed mechanical stokers |
| CN101559869A (en) * | 2008-04-16 | 2009-10-21 | 北京航天长峰股份有限公司 | Bidirectional feed chute of refuse transfer station |
| CN201415865Y (en) * | 2009-05-20 | 2010-03-03 | 郭呈真 | Automatic feeder of gasification furnace utilizing waste plastics and discarded tires for oil refining |
| CN102913935A (en) * | 2012-10-24 | 2013-02-06 | 武汉凯迪电力工程有限公司 | Furnace-free front storage bin feeding device for biomass power plant |
| CN203249239U (en) * | 2013-05-11 | 2013-10-23 | 费县上源热电有限责任公司 | Reciprocating type feeding device for biomass-fired circulating fluidized bed boiler |
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| Publication number | Publication date |
|---|---|
| CN103256592A (en) | 2013-08-21 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160511 |