CN104832905A - Tower-shaped environment-friendly pulverized coal boiler - Google Patents
Tower-shaped environment-friendly pulverized coal boiler Download PDFInfo
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- CN104832905A CN104832905A CN201510283354.6A CN201510283354A CN104832905A CN 104832905 A CN104832905 A CN 104832905A CN 201510283354 A CN201510283354 A CN 201510283354A CN 104832905 A CN104832905 A CN 104832905A
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- boiler
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- filter screen
- heater
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Abstract
The invention discloses a tower-shaped environment-friendly pulverized coal boiler which comprises a boiler body. The boiler body is of a tower structure. A hearth is arranged in the boiler body, an ash pit is formed below the hearth, and a flue is arranged on the upper portion of the boiler body and comprises an n-shaped dust removal section which is formed by connecting a horizontal pipeline and vertical pipelines. Water nozzles are arranged inside the dust removal section, and drainage pipes are arranged at the bottom of the dust removal section. The water nozzles are arranged in the horizontal pipeline and the vertical pipelines of the dust removal section, a whirl pulverized coal burner is arranged at the position, corresponding to the hearth, of the front wall of the boiler body, and a heated face is arranged on the top of the boiler body. The tower-shaped environment-friendly pulverized coal boiler is simple and reasonable in structure, compact in arrangement, low in overall weight and low in cost, and the boiler expansion center and the sealing design are easy to process; the flue is simple in structure, easy to achieve and capable of effectively improving emission of flue gas of the boiler and preventing smoke in flue gas from polluting air, and good practicability is achieved.
Description
Technical field
The present invention relates to boiler plant technical field, specifically a kind of turriform coal dust environment-protection boiler.
Background technology
The integral arrangement of pulverized-coal fired boiler refers to correlation between burner hearth, radiation of burner hearth heating surface and convection pass, convection heating surface and relative position.Because of the difference of the actual conditionses such as boiler capacity, parameter and fuel performance, much different integral arrangement schemes can be produced.
The main π of employing shape is arranged and γ shape layout at present, π shape arrangement is a kind of arrangement that large medium-size boiler the most extensively adopts, adopts this scheme, and the height of boiler and factory building is lower, alleviate the load of factory building and boiler structure, make the maintenance of back-end surfaces more convenient.But it is comparatively large that its major defect is floor space, and flue gas will change flow direction when burner hearth enters convection pass, thus causes the inhomogeneities of velocity of flue gas field and flying dust concentration field, affects the concentrated wear of heat transfer property and heating surface.
Γ shape arrangement is close with π shape scheme, just eliminates horizontal flue.Back-end surfaces is the same with burner hearth adopts overhung construction completely.This layout can save steel, but the maintenance of back-end surfaces is inconvenient.When adopting tubular air preheater, inconvenience is hung.
Containing harmful substances such as nitric oxide, nitrogen dioxide and sulfur-containing compounds in the volume of smoke that boiler combustion produces, if these flue dust are directly discharged in air, serious air pollution can be caused, therefore be necessary to process flue dust, before entering air, the harmful substance in flue dust is collected, avoid its atmosphere pollution.
Summary of the invention
The object of the present invention is to provide a kind of turriform coal dust environment-protection boiler, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of turriform coal dust environment-protection boiler, comprise body of heater, described body of heater adopts tower structure, burner hearth is provided with in body of heater, the below of burner hearth is provided with ashcan, the top of body of heater is provided with flue, described flue comprises " several " font dedusting section that horizontal pipe and vertical pipe are interconnected, water spout is provided with in the inside of dedusting section, drainpipe is provided with in the bottom of dedusting section, horizontal pipe and the vertical pipe of dedusting intersegmental part are equipped with water spout, the position of the corresponding burner hearth of antetheca of described body of heater is provided with vortex burner, the top of body of heater is provided with heating surface, superheater is disposed with from bottom to top above burner hearth, reheater and economizer.
As the further scheme of the present invention: described superheater and reheater all adopt horizontally disposed.
As the further scheme of the present invention: the vertical pipe in described dedusting section is provided with horizontal filter screen, and the water spout in vertical pipe be arranged at horizontal filter screen top and towards horizontal filter screen.
As the further scheme of the present invention: the horizontal pipe in described dedusting section is provided with the hush pipe that diameter is greater than all the other position diameters of horizontal pipe, vertical filter screen is provided with in hush pipe, water spout in horizontal pipe is arranged at the side of vertical filter screen and vertically filter screen, and described drainpipe is arranged at the bottom of hush pipe.
As the further scheme of the present invention: described flue is provided with air exhauster in the discharge directions of dedusting section.
Compared with prior art, the present invention adopts tower design, and all heating surfaces are arranged in the top of burner hearth, and heating surface arranged by afterbody vertical gas pass cloth, arranges that the boiler floor space of arranging relative to Γ shape layout and π type is little, cost is low like this; This boiler smoke upwards flows simultaneously, and in flue gas, dust flows decrease or sedimentation downwards under gravity, greatly reduces the wearing and tearing to heating surface; Superheater and reheater all adopt and are horizontally disposed with, and make heating surface at different levels all can water delivery, and when being conducive to furnace stopping maintenance and starting, steam flows usually, is conducive to the service life extending stream heating surface; Flue of the present invention is provided with the impact machine meeting that " several " font dedusting section can increase flue dust and tube wall; thus increase the chance that flue dust is adsorbed on tube wall; the flue dust being adsorbed on tube wall finally can be discharged with current; carry out reprocessing, in addition, sprayed water to flue gas by water spout; water not only can adsorb the dust in flue gas; and nitric oxide, nitrogen dioxide and the sulfur-containing compound etc. that can dissolve in flue gas, avoid dust and harmful substance to be discharged in air, protection of the environment.Boiler structure in the present invention is simple, reasonable, expansion center of boiler and Seal Design easily process, characteristics of compact layout, overall weight is comparatively light, and cost is lower, and flue structure is fairly simple, be easy to realize, effectively can improve the discharge of boiler smoke, avoid the smoke contamination air in flue gas, there is good practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation of turriform coal dust environment-protection boiler.
In figure: 1-body of heater, 2-burner hearth, 3-vortex burner, 4-fall ashcan, 5-superheater, 6-reheater, 7-economizer, 8-heating surface, 9-flue, 10-horizontal pipe, 11-vertical pipe, 12-water spout, the horizontal filter screen of 13-, 14-hush pipe, the vertical filter screen of 15-, 16-drainpipe, 17-air exhauster.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of turriform coal dust environment-protection boiler, comprise body of heater 1, described body of heater 1 adopts tower structure, burner hearth 2 is provided with in body of heater 1, the below of burner hearth 2 is provided with ashcan 4, the top of body of heater 1 is provided with flue 9, described flue 9 comprises " several " font dedusting section that horizontal pipe 10 and vertical pipe 11 are interconnected, water spout 12 is provided with in the inside of dedusting section, drainpipe 16 is provided with in the bottom of dedusting section, in the process that flue gas flows along dedusting section, water spout 12 is to its water spray, water not only can adsorb the dust in flue gas, and the nitric oxide that can dissolve in flue gas, nitrogen dioxide and sulfur-containing compound etc., dust and harmful substance is avoided to be discharged in air, the water being dissolved with harmful substance is discharged through drainpipe 16, can process further it, repeat no more herein, " several " font dedusting section can increase the impact machine meeting of flue dust and tube wall, thus increase the chance that flue dust is adsorbed on tube wall, the flue dust being adsorbed on tube wall finally can be discharged with current, carry out reprocessing.Horizontal pipe 10 and the vertical pipe 11 of dedusting intersegmental part are equipped with water spout 12, vertical pipe 11 in described dedusting section is provided with horizontal filter screen 13, and the water spout 12 in vertical pipe 11 be arranged at horizontal filter screen 13 top and towards horizontal filter screen 13, horizontal filter screen 13 can delay the speed of flue gas, and be conducive to attracting dust, the globule sticks on horizontal filter screen 13, the contact area of the harmful substance such as water and nitric oxide, nitrogen dioxide and sulfur-containing compound can be expanded, and then improve dust treatment effect, horizontal pipe 10 in dedusting section is provided with the hush pipe 14 that diameter is greater than all the other position diameters of horizontal pipe 10, vertical filter screen 11 is provided with in hush pipe 14, water spout 12 in horizontal pipe 10 is arranged at the side of vertical filter screen 11 and vertically filter screen 11, described drainpipe is arranged at the bottom of hush pipe 14, diameter due to hush pipe 14 is greater than all the other position diameters of horizontal pipe 10, therefore the cavity of hush pipe 14 can delay the flowing velocity of flue gas, vertical filter screen 15 and water spout 12 are set herein, adsorption treatment can be carried out better to flue dust, flue 9 is provided with air exhauster 17 in the discharge directions of dedusting section, for improving the smoke evacuation ability of flue, the position of the corresponding burner hearth 2 of antetheca of described body of heater 1 is provided with vortex burner, the top of body of heater 1 is provided with heating surface 8, superheater 5 is disposed with from bottom to top above burner hearth 2, reheater 6 and economizer 7, superheater 5 and reheater 6 all adopt horizontally disposed, body of heater is adopted to adopt tower design, namely set gradually ashcan 4 from bottom to top in body of heater 1, burner hearth 2, superheater 5, reheater 6, economizer 7 and heating surface 8, heating surface 8 is all arranged on the top of burner hearth 2, such layout greatly reduces the floor space of boiler, reduce cost, simultaneously owing to adopting tower layout, flue gas upwards flows, dust in flue gas is flows decrease or sedimentation downwards under gravity, therefore greatly reduce heating surface wear, and superheater 5 and reheater 6 all adopt horizontally disposed, when being conducive to furnace stopping maintenance and starting, steam flows usually, be conducive to the service life extending stream heating surface.
Boiler structure in the present invention is simple, reasonable, expansion center of boiler and Seal Design easily process, characteristics of compact layout, overall weight is comparatively light, and cost is lower, and flue structure is fairly simple, be easy to realize, effectively can improve the discharge of boiler smoke, avoid the smoke contamination air in flue gas, there is good practicality.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. a turriform coal dust environment-protection boiler, comprise body of heater, it is characterized in that, described body of heater adopts tower structure, burner hearth is provided with in body of heater, the below of burner hearth is provided with ashcan, the top of body of heater is provided with flue, described flue comprises " several " font dedusting section that horizontal pipe and vertical pipe are interconnected, water spout is provided with in the inside of dedusting section, drainpipe is provided with in the bottom of dedusting section, horizontal pipe and the vertical pipe of dedusting intersegmental part are equipped with water spout, the position of the corresponding burner hearth of antetheca of described body of heater is provided with vortex burner, the top of body of heater is provided with heating surface, superheater is disposed with from bottom to top above burner hearth, reheater and economizer.
2. a kind of turriform coal dust environment-protection boiler according to claim 1, it is characterized in that, described superheater and reheater all adopt horizontally disposed.
3. a kind of turriform coal dust environment-protection boiler according to claim 1, it is characterized in that, the vertical pipe in described dedusting section is provided with horizontal filter screen, and the water spout in vertical pipe be arranged at horizontal filter screen top and towards horizontal filter screen.
4. a kind of turriform coal dust environment-protection boiler according to claim 1, it is characterized in that, horizontal pipe in described dedusting section is provided with the hush pipe that diameter is greater than all the other position diameters of horizontal pipe, vertical filter screen is provided with in hush pipe, water spout in horizontal pipe is arranged at the side of vertical filter screen and vertically filter screen, and described drainpipe is arranged at the bottom of hush pipe.
5. a kind of turriform coal dust environment-protection boiler according to claim 1, it is characterized in that, described flue is provided with air exhauster in the discharge directions of dedusting section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283354.6A CN104832905A (en) | 2015-05-28 | 2015-05-28 | Tower-shaped environment-friendly pulverized coal boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283354.6A CN104832905A (en) | 2015-05-28 | 2015-05-28 | Tower-shaped environment-friendly pulverized coal boiler |
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| Publication Number | Publication Date |
|---|---|
| CN104832905A true CN104832905A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510283354.6A Withdrawn CN104832905A (en) | 2015-05-28 | 2015-05-28 | Tower-shaped environment-friendly pulverized coal boiler |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050061261A1 (en) * | 2002-06-20 | 2005-03-24 | Klaus Grommes | Coal-fired power station |
| CN102679307A (en) * | 2012-06-08 | 2012-09-19 | 哈尔滨锅炉厂有限责任公司 | 1000MW supercritical tower lignite boiler |
| CN102767817A (en) * | 2012-06-27 | 2012-11-07 | 华北电力大学 | Sedimentation tower type utility boiler system |
| CN103566690A (en) * | 2012-07-29 | 2014-02-12 | 吴舒克 | Double-swirl flue gas dust remover capable of spray settling |
| CN103807864A (en) * | 2013-11-30 | 2014-05-21 | 信宜市伟昌纸品厂有限公司 | Environment-friendly boiler |
| CN203731367U (en) * | 2013-12-13 | 2014-07-23 | 山西蓝天环保设备有限公司 | A tower-shaped industrial pulverized coal boiler |
| CN203836993U (en) * | 2013-11-30 | 2014-09-17 | 信宜市伟昌纸品厂有限公司 | Dedusting flue |
-
2015
- 2015-05-28 CN CN201510283354.6A patent/CN104832905A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050061261A1 (en) * | 2002-06-20 | 2005-03-24 | Klaus Grommes | Coal-fired power station |
| CN102679307A (en) * | 2012-06-08 | 2012-09-19 | 哈尔滨锅炉厂有限责任公司 | 1000MW supercritical tower lignite boiler |
| CN102767817A (en) * | 2012-06-27 | 2012-11-07 | 华北电力大学 | Sedimentation tower type utility boiler system |
| CN103566690A (en) * | 2012-07-29 | 2014-02-12 | 吴舒克 | Double-swirl flue gas dust remover capable of spray settling |
| CN103807864A (en) * | 2013-11-30 | 2014-05-21 | 信宜市伟昌纸品厂有限公司 | Environment-friendly boiler |
| CN203836993U (en) * | 2013-11-30 | 2014-09-17 | 信宜市伟昌纸品厂有限公司 | Dedusting flue |
| CN203731367U (en) * | 2013-12-13 | 2014-07-23 | 山西蓝天环保设备有限公司 | A tower-shaped industrial pulverized coal boiler |
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Application publication date: 20150812 |