CN203836941U - High-efficiency cleaning suspension fluidization burning coal water slurry fired boiler - Google Patents
High-efficiency cleaning suspension fluidization burning coal water slurry fired boiler Download PDFInfo
- Publication number
- CN203836941U CN203836941U CN201420272221.XU CN201420272221U CN203836941U CN 203836941 U CN203836941 U CN 203836941U CN 201420272221 U CN201420272221 U CN 201420272221U CN 203836941 U CN203836941 U CN 203836941U
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- China
- Prior art keywords
- bed material
- slurry
- fired boiler
- coal water
- separator
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- 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
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Abstract
The utility model provides a high-efficiency cleaning suspension fluidization burning coal water slurry fired boiler and belongs to the field of energy saving boilers. The boiler comprises a steam bag, a burning chamber, an air pre-heater, an economizer and a platform. A separator, a slurry gun, a bed material and an air distribution device are further provided. The separator is located at the position of an outlet of the burning chamber, the bed material is located under the burning chamber, the slurry gun is arranged above the bed material, and the air distribution device is further arranged under the bed material. The boiler can solve the problem of environment pollution caused by the fact that desulfurization cannot be conducted due to high temperature slag bonding and high temperature NOX discharge increase of the coal water slurry burning devices in the existing engineering practices.
Description
Technical field
The utility model belongs to energy-saving, environmental protection boiler field, specifically, relates in particular to a kind of high effect cleaning suspension fluidisation metabolic water fluid-fired boiler.
Background technology
Water-coal-slurry has the advantages such as the pipeline transportation of being convenient to, handling, storage, low pollution as a kind of novel coal derived fuel, is a kind of good low pollution fuel.In existing engineering practice, the coal-water fluid burner of existing various ways is for metabolic water coal slurry, but these utilize water-coal-slurry to carry out the burner of suspension combustion, the high temperature slagging scorification problem existing in especially little space combustion process is never well solved.
In addition,, in the process of suspension combustion, the hot environment of 1500～1800 ℃ has also increased NO
xdischarge, water-coal-slurry is difficult to carry out desulfurization in combustion process and causes environmental pollution.
Summary of the invention
The purpose of this utility model is to provide a kind of high effect cleaning suspension fluidisation metabolic water fluid-fired boiler, and it can solve high temperature slagging scorification and the high temperature that in existing engineering practice, coal-water fluid burner exists increases NO
xdischarge, cannot carry out the problem that desulfurization causes environmental pollution.
The disclosed high effect cleaning suspension of the utility model fluidisation metabolic water fluid-fired boiler, comprises drum, combustion chamber, air preheater, economizer and platform, and the utility model is also provided with separator, slurry rifle, bed material and air-distribution device; Described separator is positioned at the exit of combustion chamber, and bed material level is in the below of combustion chamber, and slurry rifle is located at the top of bed material, below bed material, is provided with air-distribution device.
Say further, the material of bed described in the utility model comprises quartz sand and lime stone.
Say further, described in the utility model, combustion chamber consists of boiler heating surface.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model has solved the problem of the high temperature slagging scorification that traditional coal-water-slurry exists in little space combustion process, has increased the stability of cool water mixture burning;
2, the utlity model has that adjusting function is good, operating cost is low, labour intensity is low and the feature strong to the applicability of water-coal-slurry, widened the coal scope of slurrying, reduced manufacturing cost;
3, the utility model can carry out direct desulfurization denitrogenation to water-coal-slurry in combustion process, reduces NO
xdischarge, and auxiliary corollary system is succinct reliable and the investment of having saved equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing of I part-structure in Fig. 1.
In figure: 1, drum; 2, boiler heating surface; 3, separator; 4, slurry rifle; 5, bed material; 6, air-distribution device; 7, air preheater; 8, economizer; 9, platform.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment: high effect cleaning suspension fluidisation metabolic water fluid-fired boiler, comprise drum 1, combustion chamber, air preheater 7, economizer 8 and platform 9, the utility model is also provided with separator 3, slurry rifle 4, bed material 5 and air-distribution device 6; Described separator 3 is positioned at the exit of combustion chamber, and bed material 5 is positioned at the below of combustion chamber, and slurry rifle 4 is located at the top of bed material 5, is provided with air-distribution device 6 below bed material 5; Described bed material 5 comprises quartz sand and lime stone; Described combustion chamber consists of boiler heating surface 2.
In view of above-described embodiment, the utility model is put into the bed material 5 of bottom, combustion chamber in a shape water-coal-slurry, and it is high temperature fluidized bed that bed material 5 consists of quartz sand and lime stone, and its temperature is 850～950 ℃; Water-coal-slurry completes rapidly moisture and separates out under the effect of red-hot fluidized bed material 5.
After moisture is separated out, the burning of water-coal-slurry initial burning and char combustion process, and graininess water-coal-slurry group further disintegrates and becomes fine grained under fluidized state, the fine grained after disintegration is taken out of emulsion zone and is entered floater by flue gas and burns away.
Combustor exit is provided with separator, the separated device separation of larger water-coal-slurry cluster of grains, the seizure of by flue gas, being taken out of.And the feedback passage arranging by separator bottom returns to bottom, combustion chamber emulsion zone.Thereby realize, reduce the loss of media material and the burning of the material recycle of water-coal-slurry cluster of grains, obtain higher efficiency of combustion.Because ignition temperature in this process is 850～950 ℃, can effectively control thermal NO
xdischarge, and bed material 5 consists of quartz sand and lime stone, lime stone is at high temperature calcined and is generated CaO, CaO and SO
2reaction further generates CaSO
4, suppressed SO
2discharge, and the running temperature of burner is the optimum operation temperature of CaO desulfurization, can effectively reduce SO
2discharge.
Claims (3)
1. a high effect cleaning suspension fluidisation metabolic water fluid-fired boiler, comprise drum (1), combustion chamber, air preheater (7), economizer (8) and platform (9), it is characterized in that: the utility model is also provided with separator (3), slurry rifle (4), bed material (5) and air-distribution device (6); Described separator (3) is positioned at the exit of combustion chamber, and bed material (5) is positioned at the below of combustion chamber, and slurry rifle (4) is located at the top of bed material (5), in the below of bed material (5), is provided with air-distribution device (6).
2. high effect cleaning suspension fluidisation metabolic water fluid-fired boiler according to claim 1, is characterized in that: described bed material (5) comprises quartz sand and lime stone.
3. high effect cleaning suspension fluidisation metabolic water fluid-fired boiler according to claim 1 and 2, is characterized in that: described combustion chamber consists of boiler heating surface (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272221.XU CN203836941U (en) | 2014-05-26 | 2014-05-26 | High-efficiency cleaning suspension fluidization burning coal water slurry fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272221.XU CN203836941U (en) | 2014-05-26 | 2014-05-26 | High-efficiency cleaning suspension fluidization burning coal water slurry fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836941U true CN203836941U (en) | 2014-09-17 |
Family
ID=51514774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420272221.XU Expired - Fee Related CN203836941U (en) | 2014-05-26 | 2014-05-26 | High-efficiency cleaning suspension fluidization burning coal water slurry fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386855A (en) * | 2018-03-01 | 2018-08-10 | 浙江万凯新材料有限公司 | A kind of deslagging device of boiler slag |
-
2014
- 2014-05-26 CN CN201420272221.XU patent/CN203836941U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386855A (en) * | 2018-03-01 | 2018-08-10 | 浙江万凯新材料有限公司 | A kind of deslagging device of boiler slag |
| CN108386855B (en) * | 2018-03-01 | 2019-09-20 | 浙江万凯新材料有限公司 | A kind of deslagging device of boiler slag |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20190526 |