CN202303411U - Yellow phosphorous tail gas waste heat recovery system with independent combustion chamber - Google Patents
Yellow phosphorous tail gas waste heat recovery system with independent combustion chamber Download PDFInfo
- Publication number
- CN202303411U CN202303411U CN2011204148654U CN201120414865U CN202303411U CN 202303411 U CN202303411 U CN 202303411U CN 2011204148654 U CN2011204148654 U CN 2011204148654U CN 201120414865 U CN201120414865 U CN 201120414865U CN 202303411 U CN202303411 U CN 202303411U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- waste heat
- combustion chamber
- incinerator
- heat boiler
- 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 - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses a yellow phosphorous tail gas waste heat recovery system with an independent combustion chamber, comprising a combustor (1) and a chimney (4). The yellow phosphorous tail gas waste heat recovery system is characterized in that the tail end of the combustor (1) is provided with an incinerator (2) connected with the combustor, an exhaust port of the incinerator (2) is connected with an air inlet of a waste heat boiler (3), and the chimney (4) is connected with the tail end of the waste heat boiler (3). As the mutually-independent incinerator and waste heat boiler are arranged, on one hand, the combustion time of the yellow phosphorus tail gas is prolonged, and the complete combustion of toxic substances such as sulfur and phosphorus in the tail gas is ensured, on the other hand, the waste heat boiler arranged behind the combustion chamber cools the high-temperature fume after combustion and then discharges the fume, meanwhile the medium and high pressure steam generated by the heat of the fume is utilized. The yellow phosphorous tail gas waste heat recovery system with the independent combustion chamber has a simple structure and long service life and operates stably, makes full use of the heat in the yellow phosphorus tail gas, saves large amount of resources and accords with the national industrial policies on energy conservation and emission reduction.
Description
Technical field
The utility model relates to the phosphorous chemical industry production field, the yellow phosphoric tail gas residual neat recovering system of the band independent combustion chamber of specifically a kind of high efficient and reliable, long service life.
Background technology
Phosphorus production has a large amount of exhaust emissions, and China's yellow phosphorus annual output remains on 800,000-1,000,000 tons basically in recent years, and corresponding yellow phosphoric tail gas discharge capacity is at 2,000,000,000 to 2,500,000,000 m
3The main component of yellow phosphoric tail gas is CO, and content is at 85-90%, and calorific value is at 10MJ/Nm
3About, so it both can be used as gaseous fuel, also can be used as industrial chemicals.But owing to contain objectionable impurities such as more sulphur, phosphorus in the yellow phosphoric tail gas, the purification separation difficulty is bigger, therefore at present as about the 2-3% that is merely the tail gas total amount of chemical products unstripped gas; The 30-35% that accounts for the tail gas total amount as thermals source such as yellow phosphorus raw material stoving, sodium phosphate trimer drying, polymerization and heating calgon, manufacture hot waters; And nearly 60% yellow phosphoric tail gas is directly discharged after the burning.This certainly will cause a large amount of wastings of resources, simultaneously with country's " yellow phosphorus industry access condition " in " newly-built yellow phosphorus unit tail gas comprehensive utilization ratio must reach more than 90% " require inconsistent.
The approach of yellow phosphoric tail gas as fuel utilization at present mainly is that the hot flue gas that exhaust combustion produces is used for drying and adds thermal material or be used for the manufacture hot water, and this part Btu utilization efficient is low, can not all utilize tail gas simultaneously.Also have part producer that yellow phosphoric tail gas is directly fed the steam boiler burning, utilize calory burning to produce steam.But owing to contain complicated objectionable impurities (particularly phosphorus) in the tail gas, heat exchanger tube corrosion failure fault generally just takes place in operation after 1-3 month in above steam boiler.Therefore how rationally to utilize the fuel gas of yellow phosphoric tail gas, be still technical staff's such as scientific research in puzzlement manufacturing enterprise and the industry, design, manufacturing a difficult problem so far as steam boiler.
Summary of the invention
The purpose of the utility model is the defective to prior art, and the yellow phosphoric tail gas residual neat recovering system of the band independent combustion chamber of a kind of high efficient and reliable, long service life is provided.
The purpose of the utility model solves through following technical scheme:
A kind of yellow phosphoric tail gas residual neat recovering system with independent combustion chamber comprises burner and chimney, and the tail end of said burner is provided with coupled incinerator, and the exhaust outlet of incinerator links to each other with the air inlet of waste heat boiler, and chimney links to each other with the tail end of waste heat boiler.
Be provided with the grid that is crisscross arranged in the inner chamber of said incinerator.
Described waste heat boiler is the boiler of chimney flue type heat-exchanging tube bundle structure.
The flue lining of said waste heat boiler adopts castable refractory to process.
The utility model is compared prior art has following advantage:
The utility model has prolonged the time of yellow phosphoric tail gas burning on the one hand through separate incinerator and waste heat boiler are set, and has guaranteed the completing combustion of the harmful substance sulphur in the tail gas, phosphorus etc.; Discharge behind the cooling high-temperature fume after the waste heat boiler that is provided with behind the combustion chamber on the other hand will burn, utilize this part heat to produce middle and high pressure steam simultaneously.
The utility model through the grid that some is set in incinerator is crisscross arranged to strengthen the disturbance of gas; Prolonged the time of staying of gas in incinerator; Guarantee that the harmful substance in the tail gas is oxidized fully, avoid the easy medium formation that steel caused corrosion such as active phosphorus.
The utility model passes through to adopt the waste heat boiler of chimney flue type heat-exchanging tube bundle structure, and adopts castable refractory to produce flue lining, has guaranteed the service life of waste heat boiler; And organize between the heat-exchanging tube bundle more and can independently change, so fault time maintenance is easy.
The utility model simple in structure on the basis that prolongs service life of equipment, improved the security and stability of equipment operation, made full use of the heat in the yellow phosphoric tail gas simultaneously, practiced thrift ample resources, meets the industrial policy of national energy-saving and emission-reduction.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Wherein: 1-burner; 2-incinerator; 3-waste heat boiler; 4-chimney.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1: a kind of yellow phosphoric tail gas residual neat recovering system with independent combustion chamber; Comprise burner 1 and chimney 4; Tail end at burner 1 is provided with coupled incinerator 2, and the exhaust outlet of incinerator 2 links to each other with the air inlet of waste heat boiler 3, and chimney 4 links to each other with the tail end of waste heat boiler 3.In order to prolong the time of staying of gas in incinerator 2, guarantee that the harmful substance in the tail gas is oxidized fully, avoid active phosphorus etc. to be prone to cause the medium of corrosion to form to steel, in the inner chamber of incinerator 2, be provided with the grid that is crisscross arranged; In addition for prolonging the service life of waste heat boiler 3; Adopt the waste heat boiler 3 of chimney flue type heat-exchanging tube bundle structure; And adopt castable refractory to produce the flue lining of waste heat boiler 3, and can independently change between the heat-exchanging tube bundle of multi-set parallel setting, so maintenance is easy during fault.
The utility model in use; At first using burner 1 that the air of yellow phosphoric tail gas and burning usefulness is sprayed in the incinerator 2 after fully mixing burns; The air that in incinerator 2, feeds burning usefulness simultaneously carries out second-time burning; Be about to yellow phosphoric tail gas and burn in two steps, the grid that is provided with in incinerator 2 inner chambers has simultaneously also prolonged the time of staying of gas in incinerator 2, has guaranteed that harmful substances such as the sulphur in the tail gas, phosphorus are burnouted fully; The waste heat boiler 3 that high-temperature flue gas after the completing combustion gets into behind the incinerator 2 cools off, and the heat that this waste heat boiler 3 reclaims in the high-temperature flue gas produces a large amount of Steam Recovery utilizations, and cooled smoke is through chimney 4 dischargings.Through the use of the utility model, produce tail gas 2500m according to yellow phosphorus per ton
3Calculate, the saturated vapor that this residual neat recovering system produces can be converted and be 1-1.2 ton standard coal.
The utility model has prolonged the time of yellow phosphoric tail gas burning on the one hand through separate incinerator and waste heat boiler are set, and has guaranteed the completing combustion of the harmful substance sulphur in the tail gas, phosphorus etc.; Discharge behind the cooling high-temperature fume after the waste heat boiler that is provided with behind the combustion chamber on the other hand will burn, utilize this part heat to produce middle and high pressure steam simultaneously; Of the present invention simple in structure, on the basis that prolongs service life of equipment, improved the security and stability of equipment operation, made full use of the heat in the yellow phosphoric tail gas simultaneously, practiced thrift ample resources, meet the industrial policy of national energy-saving and emission-reduction.
The technology that the utility model does not relate to all can realize through prior art.
Claims (4)
1. yellow phosphoric tail gas residual neat recovering system with independent combustion chamber; Comprise burner (1) and chimney (4); The tail end that it is characterized in that said burner (1) is provided with coupled incinerator (2); The exhaust outlet of incinerator (2) links to each other with the air inlet of waste heat boiler (3), and chimney (4) links to each other with the tail end of waste heat boiler (3).
2. the yellow phosphoric tail gas residual neat recovering system of band independent combustion chamber according to claim 1 is characterized in that being provided with the grid that is crisscross arranged in the inner chamber of said incinerator (2).
3. the yellow phosphoric tail gas residual neat recovering system of band independent combustion chamber according to claim 1 is characterized in that described waste heat boiler (3) is the boiler of chimney flue type heat-exchanging tube bundle structure.
4. the yellow phosphoric tail gas residual neat recovering system of band independent combustion chamber according to claim 3 is characterized in that the flue lining of said waste heat boiler (3) adopts castable refractory to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204148654U CN202303411U (en) | 2011-10-27 | 2011-10-27 | Yellow phosphorous tail gas waste heat recovery system with independent combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204148654U CN202303411U (en) | 2011-10-27 | 2011-10-27 | Yellow phosphorous tail gas waste heat recovery system with independent combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202303411U true CN202303411U (en) | 2012-07-04 |
Family
ID=46372298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204148654U Expired - Lifetime CN202303411U (en) | 2011-10-27 | 2011-10-27 | Yellow phosphorous tail gas waste heat recovery system with independent combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202303411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047660A (en) * | 2013-01-14 | 2013-04-17 | 无锡市沈能节能设备有限公司 | Yellow phosphorus tail gas recycling system |
-
2011
- 2011-10-27 CN CN2011204148654U patent/CN202303411U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047660A (en) * | 2013-01-14 | 2013-04-17 | 无锡市沈能节能设备有限公司 | Yellow phosphorus tail gas recycling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |