CN205002375U - Direct burming biomass hot -blast furnace of stokehold feeding - Google Patents
Direct burming biomass hot -blast furnace of stokehold feeding Download PDFInfo
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- CN205002375U CN205002375U CN201520636569.7U CN201520636569U CN205002375U CN 205002375 U CN205002375 U CN 205002375U CN 201520636569 U CN201520636569 U CN 201520636569U CN 205002375 U CN205002375 U CN 205002375U
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Abstract
The utility model relates to a hot -blast furnace, specifically speaking are direct burming biomass hot -blast furnace of stokehold feeding. An air pipe, bellows, furnace, spray the combustion chamber, flue gas chamber and charge -in system, wherein furnace's top is equipped with in proper order and sprays combustion chamber and flue gas chamber, furnace's bottom is equipped with fixed grate and ashpit in proper order, no. One time bellows set up in fixed grate's below, and the upper surface is equipped with a plurality of air vents, the air -blower sets up in one side of furnace, and the air outlet is connected with the one end of bellows, charge -in system sets up in the feed inlet department that the furnace opposite side was equipped with, and be connected with the other end of bellows, spray the secondary air feed passageway that is equipped with on the furnace body of combustion chamber one side with the air outlet intercommunication of air -blower. The utility model has the characteristics of area is little, installation convenient operation, and is hot -blast clean, the stable performance, and especially because hot -blast direct heated air, the cold and hot gaseous difference in temperature is big, and the general heat exchange mode of thermal efficiency ratio improves etc. By a wide margin.
Description
Technical field
The utility model relates to hot-blast stove, the direct biomass burning hot-blast stove of specifically a kind of stokehold charging.
Background technology
As everyone knows, biomass fuel has recyclability, low stain, and the clean discharge capacity of carbon dioxide is similar to zero, effectively can alleviate greenhouse effects.Therefore, biomass burning hot-blast stove replaces coal-fired hot-blast stove in recent years gradually.But biomass fuel (rice husk) and coal are having very large difference in nature: about the calorific capacity of such as per kilogram rice husk is the half of coal, the volume sending rice husk needed for same heat be the 10-12 of coal doubly; In burning velocity, rice husk is inflammable and burning-point is low, and its volatile combustion speed is 2.3 times of coal.According to these characteristics, the rice husk entering hot-blast stove just needs enough volumes and ventilation, draw, air blast supply air quantity must with rice husk comprehensive engagement, rice husk is made to be in fluidisation and close to suspended state, but the rice husk suspended does not allow burning gases take away as far as possible, the uncombusted rice husk taken away should continue carbonization burning in rear stove.If the burned gas of too much combusting rice hull is taken away, wearing and tearing will be produced to it through during Tube Sheet of Heat Exchanger, shorten heat exchanger service life.If the rice husk entering hot-blast stove is very few, just do not reach the heat needed for production.As can be seen here, the unit interval enters the fuel quantity of hot-blast stove and air quantity is the key that hot-blast stove reaches peak efficiency, selects rational feeding manner to be the precondition of realizing this goal.
Utility model content
For above-mentioned situation, the purpose of this utility model is the direct biomass burning hot-blast stove providing the charging of a kind of stokehold.
To achieve these goals, the utility model is by the following technical solutions:
The direct biomass burning hot-blast stove of a kind of stokehold charging, comprise air blast, bellows, burner hearth, jet combustors, smoke chamber and feed system, wherein the top of burner hearth is provided with jet combustors and smoke chamber successively, the bottom of described burner hearth is provided with fixed grate and ashpit successively, described bellows are arranged at the below of fixed grate, and upper surface is provided with multiple passage, described air blast is arranged at the side of burner hearth, and air outlet is connected with one end of bellows, described feed system is arranged at the charging aperture place that burner hearth opposite side is provided with, and be connected with the other end of bellows, described air blast, while burner hearth bottom air blast, blows into the biomass fuel coming from described feed system in burner hearth again.
The body of heater of described jet combustors side is provided with the secondary intake adit be communicated with the air outlet of air blast, and described air blast is the indoor secondary air feed of spray combustion by secondary intake adit.Described secondary intake adit is provided with secondary air-valve.
Described feed system comprises storage bin, discharger and conveying pipeline, wherein the two ends of conveying pipeline are connected with the charging aperture of burner hearth opposite side and the other end of bellows respectively, the top of described conveying pipeline is provided with the opening for pan feeding, and this opening part is provided with discharger and storage bin from the bottom to top successively.Described discharger is star-like discharging device, and the drive motors of described discharger is equipped with frequency converter.
Described conveying pipeline is provided with an air-valve for regulating air quantity, and described First air valve is positioned at the open outer side on conveying pipeline.
Described hot-blast stove comprises the expansion chamber, heat exchanger, dust pelletizing system and the chimney that are arranged at outside body of heater further, the side of described smoke chamber is provided with high-temperature flue gas outlet, described high-temperature flue gas outlet is communicated with expansion chamber by pipeline, described expansion chamber is communicated with heat exchanger, dust pelletizing system and chimney successively, and the top of described heat exchanger is provided with hot-blast outlet.
Described dust pelletizing system comprises dust removal filter and air-introduced machine, and wherein one end of dust removal filter is connected with heat exchanger, and the other end is communicated with the inlet scoop of air-introduced machine, and the air outlet of described air-introduced machine is communicated with chimney.
Advantage of the present utility model and beneficial effect are:
1. feeding manner feed of the present utility model is stablized, and simple to operation, health, achieves serialization and the automation of combustion process.
2. the utility model hot blast temperature can realize automatically controlling, and automatically can stop feed after furnace temperature exceedes the upper limit, and furnace temperature, lower than Automatic-feeding after lower limit, keeps hot blast temperature comparatively stable, guarantees production safety stable operation.
3. feed system of the present utility model is arranged near body of heater, operates easy for installation.
4. blower fan a tractor serves several purposes of the present utility model, while both having ensured furnace bottom air blast, blows into burner hearth the biomass fuel (rice husk) coming from storage bin again, also will provide Secondary Air for jet combustors.
5. the utility model is a kind of is medium with air, take living beings as the heating equipment of fuel, for thermally-stabilised, operation with no pressure, safe and reliable, obtain extensive use in a lot of fields.
6. biomass fuel of the present utility model is rice husk, need not any process directly burn, and reduces operating cost.
7. the utility model use the direct biomass burning hot-blast stove of stokehold feeding manner have floor space little, install easy to operate, hot blast is clean, and stable performance, particularly because hot blast directly adds hot-air, the cold and hot gas temperature difference is large, and the general heat exchange mode of thermal efficiency ratio significantly carries high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1 is air blast, 2 is main air intake, and 3 is ashpit, and 4 is bellows, 5 is fixed grate, and 6 is burner hearth, and 7 is discharger, and 8 is storage bin, 9 is jet combustors, and 10 is high-temperature flue gas outlet, and 11 is the upper shoot door of arch, 12 is secondary air-valve, and 13 is conveying pipeline, and 14 is expansion chamber, 15 is heat exchanger, and 16 is dust removal filter, and 17 is air-introduced machine, 18 is chimney, and 19 is hot-blast outlet, and 20 is smoke chamber.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the direct biomass burning hot-blast stove of a kind of stokehold charging that the utility model provides adopts vertical furnace, comprise air blast 1, bellows 4, burner hearth 6, jet combustors 9, smoke chamber 20 and feed system, wherein the bottom of body of heater is burner hearth 6, the top of described burner hearth 6 is provided with jet combustors 9 and smoke chamber 20 successively, the bottom of described burner hearth 6 is provided with fixed grate 5 and ashpit 3 successively, described bellows 4 are arranged at the below of fixed grate 5, and upper surface is provided with multiple passage, described air blast 1 is arranged at the side of burner hearth 6, and air outlet is connected with one end of bellows 4, described feed system is arranged at the charging aperture place that burner hearth 6 opposite side is provided with, and be connected with the other end of bellows 4, described air blast 1, while burner hearth 6 bottom blast, blows into the biomass fuel coming from described feed system in burner hearth 6 again.
The body of heater of described jet combustors 9 side is provided with the secondary intake adit be communicated with the air outlet of air blast 1, and described air blast 1 is secondary air feed in jet combustors 9 by secondary intake adit, and described secondary intake adit is provided with secondary air-valve 12.
Described feed system comprises storage bin 8, discharger 7 and conveying pipeline 13, wherein the two ends of conveying pipeline 13 are connected with the charging aperture of burner hearth 6 opposite side and the other end of bellows 4 respectively, the top of described conveying pipeline 13 is provided with the opening for pan feeding, this opening part is provided with discharger 7 and storage bin 8 from the bottom to top successively, and described discharger 7 is star-like discharging device.Described conveying pipeline 13 is provided with an air-valve for regulating air quantity, and described First air valve is positioned at the open outer side on conveying pipeline 13.
Described hot-blast stove comprises the expansion chamber 14, heat exchanger 15, dust pelletizing system and the chimney 18 that are arranged at outside body of heater further, the side of described smoke chamber 20 is provided with high-temperature flue gas outlet 10, described high-temperature flue gas outlet 10 is communicated with expansion chamber 14 by pipeline, described expansion chamber 14 is communicated with heat exchanger 15, dust pelletizing system and chimney 18 successively, and the top of described heat exchanger 15 is provided with hot-blast outlet 19.
Described dust pelletizing system comprises dust removal filter 16 and air-introduced machine 17, and wherein one end of dust removal filter 16 is connected with heat exchanger 15, and the other end is communicated with the inlet scoop of air-introduced machine 17, and the air outlet of described air-introduced machine 17 is communicated with chimney 18.
Described air blast 1 is arranged on the opposite of charging aperture body of heater, a tractor serves several purposes, while both having ensured furnace bottom air blast, again the biomass fuel (rice husk) coming from storage bin is blown into burner hearth, also will provide Secondary Air for jet combustors.In order to the heat that hot-blast stove can be regulated to export, the drive motors of star-like discharging device adopts variable-frequency motor or frequency converter is housed, and to control its rotating speed, adjust flux, controls the speed of blanking.An air-valve simultaneously by being provided with on conveying pipeline 13, regulates air quantity.During hot-blast stove work, the rice husk in storage bin enters into conveying pipeline 13 through Star-like unloader, and now air blast 1 constantly blow flow, is blown into rice husk in burner hearth 6.We adopt the duty of Frequency Converter Control air blast 1 and air-introduced machine 17, mix up respective air quantity and blast, make rice husk be in suspended state in burner hearth 6, fully contact with high-temperature gas in burner hearth 6, burn rapidly, a small amount of rice husk is brought in jet combustors 9 by high-temperature gas, Thorough combustion under secondary air jet effect, thus greatly reduces the smoke content through heat exchanger 15, ensures its Effec-tive Function, reduce the frequency of scratching in the ashes, thus extend the life-span of heat exchanger 15.Under the effect of air-introduced machine 17, in burner hearth 6, be in micro-vacuum state, in order to avoid flue gas is excessive, affect stoker's environment.The high-temperature flue gas that combusting rice hull produces flows in expansion chamber 14 along pipeline, the ash mixed in flue gas relies on gravity to fall in expansion chamber 14, flue gas after sedimentation enters in heat exchanger 15, and the flue gas after cooling enters in dust removal filter 16, enters in chimney 18 finally by air-introduced machine 17.The hot blast of the clean high temperature after high-temperature flue gas heat exchange through hot-blast outlet 19 for the production of giving thermal process.Ash after combusting rice hull falls into the ashpit 3 below fixed grate 6.
Claims (9)
1. the direct biomass burning hot-blast stove of a stokehold charging, it is characterized in that, comprise air blast (1), a bellows (4), burner hearth (6), jet combustors (9), smoke chamber (20) and feed system, wherein the top of burner hearth (6) is provided with jet combustors (9) and smoke chamber (20) successively, the bottom of described burner hearth (6) is provided with fixed grate (5) and ashpit (3) successively, a described bellows (4) is arranged at the below of fixed grate (5), and upper surface is provided with multiple passage, described air blast (1) is arranged at the side of burner hearth (6), and air outlet is connected with one end of a bellows (4), described feed system is arranged at the charging aperture place that burner hearth (6) opposite side is provided with, and be connected with the other end of a bellows (4), described air blast (1), while burner hearth (6) bottom blast, blows into the biomass fuel coming from described feed system in burner hearth (6) again.
2. by the direct biomass burning hot-blast stove of stokehold according to claim 1 charging, it is characterized in that, the body of heater of described jet combustors (9) side is provided with the secondary intake adit be communicated with the air outlet of air blast (1), and described air blast (1) is the interior secondary air feed of jet combustors (9) by secondary intake adit.
3., by the direct biomass burning hot-blast stove of stokehold according to claim 2 charging, it is characterized in that, described secondary intake adit is provided with secondary air-valve (12).
4. by the direct biomass burning hot-blast stove of stokehold according to claim 1 charging, it is characterized in that, described feed system comprises storage bin (8), discharger (7) and conveying pipeline (13), wherein the two ends of conveying pipeline (13) are connected with the charging aperture of burner hearth (6) opposite side and the other end of a bellows (4) respectively, the top of described conveying pipeline (13) is provided with the opening for pan feeding, and this opening part is provided with discharger (7) and storage bin (8) from the bottom to top successively.
5., by the direct biomass burning hot-blast stove of stokehold according to claim 4 charging, it is characterized in that, described discharger (7) is star-like discharging device.
6., by the direct biomass burning hot-blast stove of stokehold according to claim 4 charging, it is characterized in that, the drive motors of described discharger (7) is equipped with frequency converter.
7. by the direct biomass burning hot-blast stove of stokehold according to claim 4 charging, it is characterized in that, described conveying pipeline (13) is provided with an air-valve for regulating air quantity, and described First air valve is positioned at the open outer side on conveying pipeline (13).
8. by the direct biomass burning hot-blast stove of the stokehold charging described in any one of claim 1-7, it is characterized in that, described hot-blast stove comprises the expansion chamber (14) be arranged at outside body of heater further, heat exchanger (15), dust pelletizing system and chimney (18), the side of described smoke chamber (20) is provided with high-temperature flue gas outlet (10), described high-temperature flue gas outlet (10) is communicated with expansion chamber (14) by pipeline, described expansion chamber (14) successively with heat exchanger (15), dust pelletizing system and chimney (18) are communicated with, the top of described heat exchanger (15) is provided with hot-blast outlet (19).
9. by the direct biomass burning hot-blast stove of stokehold according to claim 8 charging, it is characterized in that, described dust pelletizing system comprises dust removal filter (16) and air-introduced machine (17), wherein one end of dust removal filter (16) is connected with heat exchanger (15), the other end is communicated with the inlet scoop of air-introduced machine (17), and the air outlet of described air-introduced machine (17) is communicated with chimney (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636569.7U CN205002375U (en) | 2015-08-21 | 2015-08-21 | Direct burming biomass hot -blast furnace of stokehold feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636569.7U CN205002375U (en) | 2015-08-21 | 2015-08-21 | Direct burming biomass hot -blast furnace of stokehold feeding |
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| Publication Number | Publication Date |
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| CN205002375U true CN205002375U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520636569.7U Expired - Fee Related CN205002375U (en) | 2015-08-21 | 2015-08-21 | Direct burming biomass hot -blast furnace of stokehold feeding |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698380A (en) * | 2016-03-11 | 2016-06-22 | 安徽新生力生物科技有限公司 | Hot air generating process adopting grain waste as material |
| CN105783256A (en) * | 2016-03-11 | 2016-07-20 | 安徽新生力生物科技有限公司 | Hot blast stove adopting biofuel |
| CN109058974A (en) * | 2018-07-03 | 2018-12-21 | 安徽辰宇机械科技有限公司 | A kind of stalk chaff environmental protection suspension hot-blast stove |
| CN110260288A (en) * | 2019-04-30 | 2019-09-20 | 李学滨 | Minute-pressure steam biomass heat energy machine |
| CN113776190A (en) * | 2021-08-11 | 2021-12-10 | 华中科技大学 | Multistage temperature-regulating industrial hot air device for trumpetcreeper and use method |
-
2015
- 2015-08-21 CN CN201520636569.7U patent/CN205002375U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698380A (en) * | 2016-03-11 | 2016-06-22 | 安徽新生力生物科技有限公司 | Hot air generating process adopting grain waste as material |
| CN105783256A (en) * | 2016-03-11 | 2016-07-20 | 安徽新生力生物科技有限公司 | Hot blast stove adopting biofuel |
| CN109058974A (en) * | 2018-07-03 | 2018-12-21 | 安徽辰宇机械科技有限公司 | A kind of stalk chaff environmental protection suspension hot-blast stove |
| CN110260288A (en) * | 2019-04-30 | 2019-09-20 | 李学滨 | Minute-pressure steam biomass heat energy machine |
| CN113776190A (en) * | 2021-08-11 | 2021-12-10 | 华中科技大学 | Multistage temperature-regulating industrial hot air device for trumpetcreeper and use method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20200821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |