CN203785241U - Thrice combusting hot-air boiler - Google Patents
Thrice combusting hot-air boiler Download PDFInfo
- Publication number
- CN203785241U CN203785241U CN201420163154.8U CN201420163154U CN203785241U CN 203785241 U CN203785241 U CN 203785241U CN 201420163154 U CN201420163154 U CN 201420163154U CN 203785241 U CN203785241 U CN 203785241U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- burner hearth
- combustion
- expansion chamber
- hearth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 68
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003546 flue gas Substances 0.000 claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 5
- 239000002893 slag Substances 0.000 claims abstract description 5
- 241000628997 Flos Species 0.000 claims description 4
- 210000001364 upper extremity Anatomy 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000005864 Sulphur Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model discloses a thrice combusting hot-air boiler which comprises a boiler body, wherein the front end of the boiler body is provided with a coal hopper, the rear end of the boiler body is provided with a high-temperature flue gas discharging opening, the side wall of the boiler body is provided with a boiler door, the bottom of a hearth is provided with a chain grate and a slag remover, an ash blocking wall is arranged behind the grate, the ash blocking wall separates the hearth into a combustion area and a depression area, the combustion area consists of a first combustion chamber, a second combustion chamber and a third combustion chamber, a fireproof wall is arranged above and behind the first combustion chamber, the lower edge of the fireproof wall is connected with the front end of a small arch of the hearth, the second combustion chamber is formed between the small arch of the hearth and the grate, the third combustion chamber is formed between the small arch of the hearth and the top of the boiler, and the rear end of the small arch of the hearth is provided with a fire outlet for communicating the second combustion chamber with the third combustion chamber. Fuel is fully combusted when the thrice combusting boiler works, the heat efficiency is high, the energy saving effect is good, the content of sulphur, phosphor and solid particles in discharged flue gas is low, and the environment-friendly effect is good.
Description
Technical field
The utility model relates to a kind of hot air boiler, especially a kind ofly provides the hot air boiler of thermal source for grain drying tower.
Background technology
Hot air boiler is the requisite corollary equipment of grain drying tower, for the cold air in air heat exchanger, heats, and produces the needed hot blast of grain heat-drying.Hot air boiler of the prior art arranges little arch conventionally in burner hearth, burner hearth interior separation is become to two combustion chambers, adopt the rear end of the little arch of hot air boiler of this structure to there is enclosed construction, high-temperature flue gas in little arch is discharged from fume emission mouth from little arch front opening enters the second combustion chambers burn, enters air heat exchanger cold air is heated.The flue gas time of staying in burner hearth producing while adopting the hot air boiler fuel combustion of this structure is shorter, can not fully be burnt, and therefore, the sulfureous in flue gas discharging, phosphorus and solid content are higher, pollutes more seriously, and the utilization ratio of fuel is lower.
Utility model content
The technical problem that utility model will solve: a kind of three burning hot air boilers are provided, and when these three times burning hot blast kettleman does, fuel combustion is thorough, the thermal efficiency is high, good energy-conserving effect, the sulfureous in flue gas discharging, phosphorus and solid content are low, and environment protecting is good.
The technical scheme of taking of technical solution problem: a kind of three burning hot air boilers, comprise body of heater, at body of heater front end, be provided with coal bunker, in body of heater rear end, be provided with high-temperature flue gas floss hole, at sidewall of the furnace body, be provided with fire door, at burner hearth bottom, be provided with traveling-grate stoker, slag remover, at fire grate rear, be provided with ash retaining wall, ash retaining wall is separated into combustion zone and decanting zone by burner hearth, described combustion zone is by the first combustion chamber, the second combustion chamber and the 3rd combustion chamber form, in the first back upper place, combustion chamber, be provided with firebreak, firebreak lower edge is connected with the little arch front end of burner hearth, between the little arch of burner hearth and fire grate, form the second combustion chamber, between the little arch of burner hearth and furnace roof, form the 3rd combustion chamber, in the little arch of burner hearth rear end, be provided with and be communicated with the second combustion chamber and three-barreled crater.
As improvement of the present utility model: described decanting zone consists of the first expansion chamber and the second expansion chamber, the first expansion chamber and the second expansion chamber bottom UNICOM, between the first expansion chamber and the second expansion chamber, be provided with the choked flow wall being connected with furnace roof, in the bottom of expansion chamber, be provided with ash door.
As further improvement of the utility model: described ash retaining wall consists of vertical section and segmental arc, and the little arch of the upper limb of segmental arc and burner hearth forms crater between rear end.
Beneficial effect: three burning hot air boilers of the present utility model are owing to having adopted described three burning hot air boilers to comprise body of heater, at body of heater front end, be provided with coal bunker, in body of heater rear end, be provided with high-temperature flue gas floss hole, at sidewall of the furnace body, be provided with fire door, at burner hearth bottom, be provided with traveling-grate stoker, slag remover, at fire grate rear, be provided with ash retaining wall, ash retaining wall is separated into combustion zone and decanting zone by burner hearth, described combustion zone is by the first combustion chamber, the second combustion chamber and the 3rd combustion chamber form, in the first back upper place, combustion chamber, be provided with firebreak, firebreak lower edge is connected with the little arch front end of burner hearth, between the little arch of burner hearth and fire grate, form the second combustion chamber, between the little arch of burner hearth and furnace roof, form the 3rd combustion chamber, in the little arch of burner hearth rear end, be provided with the technical scheme that is communicated with the second combustion chamber and three-barreled crater, by three combustion chambers are set in burner hearth, utilize the first top of combustion chamber higher than the second top of combustion chamber, the high-temperature combustible gas producing while extending fuel combustion is in the first combustion chamber time of staying, make the sulphur in flue gas, phosphorus and tar fully participate in burning, decompose, again through the second combustion chamber, after the 3rd combustion chambers burn, discharge, and, high-temperature flue gas is when entering the 3rd combustion chamber from the second combustion chamber, can produce vortex in the 3rd combustion chamber regions being positioned at above the second combustion chamber, make the flue gas also can smooth combustion in the 3rd combustion chamber, and it is more thorough to burn, therefore, when three burning hot blast kettleman of the present utility model do, fuel combustion is thorough, the thermal efficiency is high, good energy-conserving effect, the sulfureous in flue gas discharging, phosphorus and solid content are low, environment protecting is good, owing to having adopted described decanting zone to be formed by the first expansion chamber and the second expansion chamber, the first expansion chamber and the second expansion chamber bottom UNICOM, between the first expansion chamber and the second expansion chamber, be provided with the choked flow wall being connected with furnace roof, in the bottom of expansion chamber, be provided with the technical characterictic of ash door, through twice sedimentation, further reduced the content of solids in the flue gas discharging, not only environment protecting is good, has also extended the deashing maintenance period of air heat exchanger, owing to having adopted described ash retaining wall to be formed by vertical section and segmental arc, between the little arch of the upper limb of segmental arc and burner hearth rear end, form the technical characterictic of crater, make can slow down and enter expansion chamber from the flue gas of the 3rd combustion chamber discharge, be entrained in the fully sedimentation of dust granule in flue gas, the content that has further reduced solids in the flue gas of three burning hot blast boiler emissions of the present utility model, environment protecting is better.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of three burning hot air boilers of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, three burning hot air boilers of the present utility model are described in further detail.
As shown in Figure 1, three burning hot air boilers of the present utility model, comprise body of heater 2, at body of heater front end, be provided with coal bunker 1, in body of heater rear end, be provided with high-temperature flue gas floss hole 12, at sidewall of the furnace body, be provided with fire door, at burner hearth bottom, be provided with traveling-grate stoker 13, slag remover 15, at fire grate rear, be provided with ash retaining wall 8, ash retaining wall is separated into combustion zone and decanting zone by burner hearth, described combustion zone is by the first combustion chamber 3, the second combustion chamber 14 and the 3rd combustion chamber 6 form, in the first back upper place, combustion chamber, be provided with firebreak 4, firebreak lower edge is connected with little arch 5 front ends of burner hearth, between the little arch of burner hearth and fire grate, form the second combustion chamber, between the little arch of burner hearth and furnace roof, form the 3rd combustion chamber, in the little arch of burner hearth rear end, be provided with and be communicated with the second combustion chamber and three-barreled crater 7, described ash retaining wall consists of vertical section and segmental arc, the little arch of the upper limb of segmental arc and burner hearth forms crater between rear end, the top of the first combustion chamber is higher than the top of the second combustion chamber, at the first top of combustion chamber, form similar dome structure.Described decanting zone consists of the first expansion chamber 9 and the second expansion chamber 11, and the first expansion chamber and the second expansion chamber bottom UNICOM is provided with the choked flow wall 10 being connected with furnace roof between the first expansion chamber and the second expansion chamber, in the bottom of expansion chamber, is provided with ash door 16.
Claims (3)
- One kind three times burning hot air boilers, comprise body of heater, at body of heater front end, be provided with coal bunker, in body of heater rear end, be provided with high-temperature flue gas floss hole, at sidewall of the furnace body, be provided with fire door, at burner hearth bottom, be provided with traveling-grate stoker, slag remover, at fire grate rear, be provided with ash retaining wall, ash retaining wall is separated into combustion zone and decanting zone by burner hearth, it is characterized in that: described combustion zone is by the first combustion chamber, the second combustion chamber and the 3rd combustion chamber form, in the first back upper place, combustion chamber, be provided with firebreak, firebreak lower edge is connected with the little arch front end of burner hearth, between the little arch of burner hearth and fire grate, form the second combustion chamber, between the little arch of burner hearth and furnace roof, form the 3rd combustion chamber, in the little arch of burner hearth rear end, be provided with and be communicated with the second combustion chamber and three-barreled crater.
- According to claim 1 three times burning hot air boilers, it is characterized in that: described decanting zone consists of the first expansion chamber and the second expansion chamber, the first expansion chamber and the second expansion chamber bottom UNICOM, between the first expansion chamber and the second expansion chamber, be provided with the choked flow wall being connected with furnace roof, in the bottom of expansion chamber, be provided with ash door.
- 3. three burning hot air boilers according to claim 1 and 2, is characterized in that: described ash retaining wall consists of vertical section and segmental arc, and the little arch of the upper limb of segmental arc and burner hearth forms crater between rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163154.8U CN203785241U (en) | 2014-04-04 | 2014-04-04 | Thrice combusting hot-air boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163154.8U CN203785241U (en) | 2014-04-04 | 2014-04-04 | Thrice combusting hot-air boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785241U true CN203785241U (en) | 2014-08-20 |
Family
ID=51321420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163154.8U Expired - Fee Related CN203785241U (en) | 2014-04-04 | 2014-04-04 | Thrice combusting hot-air boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785241U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838974A (en) * | 2017-04-05 | 2017-06-13 | 河南农业大学 | A kind of biomass bundling fuel chain-grate boiler furnace arch structure |
| CN110617622A (en) * | 2018-06-19 | 2019-12-27 | 长春市霸航农机制造有限公司 | Biomass three-combustion-chamber all-steel energy-saving hot blast stove |
| CN110953712A (en) * | 2019-12-31 | 2020-04-03 | 吉林省东辉生物质能源有限公司 | Semi-gasification biomass combustion hot blast stove |
| CN112833428A (en) * | 2021-01-22 | 2021-05-25 | 联合优发生物质能源徐州有限公司 | Civil biomass briquette and particle dual-purpose cooking and baking stove |
-
2014
- 2014-04-04 CN CN201420163154.8U patent/CN203785241U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838974A (en) * | 2017-04-05 | 2017-06-13 | 河南农业大学 | A kind of biomass bundling fuel chain-grate boiler furnace arch structure |
| CN110617622A (en) * | 2018-06-19 | 2019-12-27 | 长春市霸航农机制造有限公司 | Biomass three-combustion-chamber all-steel energy-saving hot blast stove |
| CN110953712A (en) * | 2019-12-31 | 2020-04-03 | 吉林省东辉生物质能源有限公司 | Semi-gasification biomass combustion hot blast stove |
| CN112833428A (en) * | 2021-01-22 | 2021-05-25 | 联合优发生物质能源徐州有限公司 | Civil biomass briquette and particle dual-purpose cooking and baking stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |