CN211232903U - Waste heat boiler for incinerating multiple saliferous organic waste liquids - Google Patents
Waste heat boiler for incinerating multiple saliferous organic waste liquids Download PDFInfo
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- CN211232903U CN211232903U CN201922132455.XU CN201922132455U CN211232903U CN 211232903 U CN211232903 U CN 211232903U CN 201922132455 U CN201922132455 U CN 201922132455U CN 211232903 U CN211232903 U CN 211232903U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses an burn waste heat boiler that stranded contains salt organic waste liquid, it includes combustor (1), burns section (2), cooling section (3), high temperature over heater (4), low temperature over heater (5), SCR SNCR and reserves interface section (6), economizer (7), high temperature section air preheater (9), middle temperature section air preheater (10) and low temperature section air preheater (11). The utility model has reasonable structural design, safety and reliability, can avoid coking and slagging, and has high desalting and dedusting efficiency; through setting up high, low temperature hierarchical over heater and high, well, low temperature air preheater in grades, can effectively reduce exhaust gas temperature, can improve heat exchange efficiency and waste liquid decomposition rate greatly, economy is the environmental protection again.
Description
Technical Field
The utility model relates to a waste liquid of chemical industry burns waste heat recovery system technical field, concretely relates to burn waste heat boiler that stranded contains salt organic waste liquid.
Background
The organic waste liquid containing salt is one of organic industrial waste liquids which are difficult to treat. At present, most of treatment technologies adopted by the enterprises can produce industrial waste salt, and further treatment is still needed. The waste is sent to qualified hazardous waste landfill sites for landfill disposal, and the treatment cost is high. In addition, because the industrial waste salt is very easy to dissolve in water, the landfill receiving is difficult. The method for thoroughly decomposing organic matters in the waste liquid by high-temperature incineration is a common organic waste liquid treatment method. In the aerobic atmosphere, the organic matters in the high-salt organic waste liquid begin to volatilize and decompose at about 300 ℃, and when the temperature reaches above 800 ℃, the organic matters in the waste liquid are thoroughly decomposed into CO2The residual salt is discharged in a molten state at high temperature, thereby realizing the safe disposal of the organic waste liquid with high salt content, wherein the incineration method is generally suitable for treating COD concentration more than 1.0 × 105mg/L, calorific value higher than 1.05 × 104High concentration organic waste liquid of kJ/kg, but for salt content > 1.0 × 104mg/L of organic waste liquid generally needs desalting pretreatment to prevent coking in the furnace. According to the difference of main equipment, the incineration technology can fully utilize the heat value in the high-salt organic waste liquid, but because the operation temperature is overhigh, the phenomena of furnace body coking and slag bonding are easy to occur, the equipment is corroded, the decomposition of the waste liquid is not thorough, and the desalting rate is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste heat boiler who burns stranded organic waste liquid that contains salt that structural design is reasonable, the utility model provides a waste heat boiler can solve the present conventional waste liquid that contains salt and burn easy coking of burning furnace, slagging scorification, dust removal difficulty and the not high scheduling problem of heat exchange efficiency.
The technical scheme is as follows: in order to achieve the above purpose, the utility model adopts the following technical scheme:
a waste heat boiler for incinerating a plurality of strands of saliferous organic waste liquid comprises a combustor, an incineration section, a cooling section, a high-temperature superheater, a low-temperature superheater, an SCR/SNCR (selective catalytic reduction/selective non-catalytic reduction) reserved interface section, an economizer, a high-temperature section air preheater, a medium-temperature section air preheater and a low-temperature section air preheater;
the burner is vertically arranged on the central axis of the top of the incineration section; the lower ends of the incineration section and the cooling section are communicated, and high-temperature ash falling ports are formed in the bottoms of the incineration section and the cooling section;
the upper end of the cooling section is connected with a high-temperature superheater; the high-temperature superheater is sequentially connected with the low-temperature superheater, the SCR/SNCR reserved interface section and the economizer;
the economizer is connected with the high-temperature section air preheater, the middle-temperature section air preheater and the low-temperature section air preheater in sequence through a flue;
the upper ends of the high-temperature superheater, the low-temperature superheater and the economizer are respectively fixed with a steam soot blower; and the lower ends of the high-temperature section air preheater, the middle-temperature section air preheater and the low-temperature section air preheater are respectively fixed with a steam soot blower.
Preferably, in the waste heat boiler for incinerating a plurality of strands of salt-containing organic waste liquids, 1 waste liquid spray gun is arranged on a central axis of the burner; and 3 waste liquid spray guns vertically inserted at the top of the incineration section are uniformly distributed around the combustor.
Preferably, in the waste heat boiler for incinerating a plurality of strands of salt-containing organic waste liquid, the inner side wall of the incineration section is a wavy membrane water-cooled wall.
According to the preferable scheme, the lower ends of the economizer and the high-temperature section air preheater are respectively provided with the intermediate-temperature ash falling port, and the two intermediate-temperature ash falling ports are connected through the flue.
The utility model discloses a combustor, high temperature over heater, low temperature over heater, economizer, high, the air preheater (being air heater) of well and low temperature section all can adopt the conventional device in market.
Has the advantages that: compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a set up wave diaphragm type water-cooling wall, high temperature ash falling mouth, cooling section and steam soot blower, effective salt corrosion resistant avoids the coking slagging scorification, high-efficient convenient desalination deashing.
(2) The utility model discloses a set up high, low temperature classification over heater and high, well, low temperature classification air preheater, can effectively reduce exhaust gas temperature, can improve heat exchange efficiency and waste liquid decomposition rate greatly.
(3) The utility model discloses a set up SCR SNCR and reserve the interface section, actively deal with the environmental protection standard and tighten up the situation, reduce the transformation degree of difficulty.
Drawings
Fig. 1 is a schematic structural diagram of a waste heat boiler for incinerating a plurality of saline organic waste liquids provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, a waste heat boiler for incinerating a plurality of strands of salt-containing organic waste liquid comprises a combustor 1, an incineration section 2, a cooling section 3, a high-temperature superheater 4, a low-temperature superheater 5, an SCR/SNCR reserved interface section 6, an economizer 7, a high-temperature section air preheater 9, a medium-temperature section air preheater 10 and a low-temperature section air preheater 11;
the combustor 1 is vertically arranged on the central axis of the top of the incineration section 2; the lower ends of the incineration section 2 and the cooling section 3 are communicated, the bottoms of the incineration section 2 and the cooling section 3 are provided with high-temperature ash falling ports 3-1, and the inner side wall of the incineration section 2 is a wavy membrane type water-cooled wall 2-1;
the upper end of the cooling section 3 is connected with a high-temperature superheater 4, and the high-temperature superheater 4 is sequentially connected with a low-temperature superheater 5, an SCR + SNCR reserved interface section 6 and an economizer 7;
the lower ends of the coal economizers 7 are provided with medium temperature ash falling ports 8-1, and the medium temperature ash falling ports 8-1 are connected with the medium temperature ash falling ports 8-1 at the lower ends of the high temperature section air pre-heaters 9 through flues 8; the high-temperature section air preheater 9 is sequentially connected with the medium-temperature section air preheater 10 and the low-temperature section air preheater 11;
the upper ends of the high-temperature superheater 4, the low-temperature superheater 5 and the economizer 7 are respectively fixed with a steam soot blower 12; and the lower ends of the high-temperature section air preheater 9, the middle-temperature section air preheater 10 and the low-temperature section air preheater 11 are respectively fixed with a steam soot blower 12. The steam soot blower 12 is provided with soot blowing holes to blow off dust accumulated on the heat exchange surface, thereby improving heat exchange efficiency and preventing tube explosion.
In the waste heat boiler for incinerating a plurality of strands of saliferous organic waste liquid, 1 waste liquid spray gun 1-1 is arranged on the central axis of the combustor 1; and 3 waste liquid spray guns 1-1 vertically inserted into the top of the incineration section 2 are uniformly distributed around the combustor 1. A plurality of waste liquid spray guns can distribute multi-strand waste liquid to burn simultaneously, and various working condition requirements are met.
Further, the lower ends of the incineration section 2 and the cooling section 3 share a high-temperature ash falling port 3-1. The lower ends of the coal economizer 7 and the high-temperature section air preheater 9 are respectively provided with a medium-temperature ash falling port 8-1; the dust in the flue gas falls into the ash falling port and is discharged by the automatic ash conveying device, and the device is efficient and convenient.
The utility model discloses a theory of operation: salt-containing organic waste liquid generated under different working conditions in the production process of a chemical enterprise is sent into an incineration section 2 from the furnace top through a combustor 1 and a waste liquid spray gun 1-1 to be incinerated, salt corrosion resistant castable is attached to a membrane water wall 2-1, hot flue gas generated by incineration passes through a cooling section from bottom to top, and dust in the flue gas continuously falls into a high-temperature ash falling port 3-1 due to gravity while the temperature is reduced. And then, the high-temperature flue gas sequentially passes through a high-temperature superheater 4, a low-temperature superheater 5, an SCR/SNCR reserved interface section 6 and an economizer 7 from top to bottom, and high-quality superheated steam is generated through heat exchange and is sent to a steam pocket. The high-temperature flue gas continuously passes through the high-temperature section air preheater 9, the medium-temperature section air preheater 10 and the low-temperature section air preheater 11 from bottom to top in sequence through the flue 8, so that the exhaust gas temperature is further reduced, the incineration air distribution temperature is increased, and waste liquid pyrolysis is facilitated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A waste heat boiler for incinerating a plurality of strands of salt-containing organic waste liquid is characterized by comprising a combustor (1), an incineration section (2), a cooling section (3), a high-temperature superheater (4), a low-temperature superheater (5), an SCR/SNCR reserved interface section (6), an economizer (7), a high-temperature section air preheater (9), a medium-temperature section air preheater (10) and a low-temperature section air preheater (11);
the burner (1) is vertically arranged on the central axis of the top of the incineration section (2); the lower ends of the incineration section (2) and the cooling section (3) are communicated, and the bottoms of the incineration section (2) and the cooling section (3) are provided with high-temperature ash falling openings (3-1);
the upper end of the cooling section (3) is connected with a high-temperature superheater (4), and the high-temperature superheater (4) is sequentially connected with a low-temperature superheater (5), an SCR/SNCR reserved interface section (6) and an economizer (7);
the economizer (7) is sequentially connected with a high-temperature section air preheater (9), a medium-temperature section air preheater (10) and a low-temperature section air preheater (11) through a flue (8);
the upper ends of the high-temperature superheater (4), the low-temperature superheater (5) and the economizer (7) are respectively fixed with a steam soot blower (12); and the lower ends of the high-temperature section air preheater (9), the medium-temperature section air preheater (10) and the low-temperature section air preheater (11) are respectively fixed with a steam soot blower (12).
2. Waste heat boiler incinerating a plurality of saliferous organic waste liquids according to claim 1, characterized in that: 1 waste liquid spray gun (1-1) is arranged on the central axis of the combustor (1); and 3 waste liquid spray guns (1-1) vertically inserted into the top of the incineration section (2) are uniformly distributed around the combustor (1).
3. Waste heat boiler incinerating a plurality of saliferous organic waste liquids according to claim 1, characterized in that: the inner side wall of the incineration section (2) is a wavy membrane water-cooled wall (2-1).
4. Waste heat boiler incinerating a plurality of saliferous organic waste liquids according to claim 1, characterized in that: the lower ends of the coal economizer (7) and the high-temperature section air preheater (9) are respectively provided with a medium-temperature ash falling port (8-1), and the two medium-temperature ash falling ports (8-1) are connected through a flue (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132455.XU CN211232903U (en) | 2019-12-03 | 2019-12-03 | Waste heat boiler for incinerating multiple saliferous organic waste liquids |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922132455.XU CN211232903U (en) | 2019-12-03 | 2019-12-03 | Waste heat boiler for incinerating multiple saliferous organic waste liquids |
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| CN211232903U true CN211232903U (en) | 2020-08-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154395A (en) * | 2021-03-30 | 2021-07-23 | 四川零域环保科技有限公司 | COD removing system for waste water cracking and burning |
| CN114234210A (en) * | 2021-12-23 | 2022-03-25 | 南通万达锅炉有限公司 | Petrochemical waste liquid integration incineration boiler |
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2019
- 2019-12-03 CN CN201922132455.XU patent/CN211232903U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154395A (en) * | 2021-03-30 | 2021-07-23 | 四川零域环保科技有限公司 | COD removing system for waste water cracking and burning |
| CN114234210A (en) * | 2021-12-23 | 2022-03-25 | 南通万达锅炉有限公司 | Petrochemical waste liquid integration incineration boiler |
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