CN204665223U - A kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine - Google Patents
A kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine Download PDFInfo
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- CN204665223U CN204665223U CN201520298722.XU CN201520298722U CN204665223U CN 204665223 U CN204665223 U CN 204665223U CN 201520298722 U CN201520298722 U CN 201520298722U CN 204665223 U CN204665223 U CN 204665223U
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- tube evaporator
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
A kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine, relate to steel smelting equipment technical field, comprise the large flue of sintering machine, bottom flue, large flue steam superheater, bottom flue steam superheater, large flue finned-tube evaporator, bottom flue finned-tube evaporator, drum, water supply system; Large flue, bottom flue comprise some flue tube couplings respectively, and every root flue tube coupling is respectively equipped with at least one wireway.The utility model is because being directly arranged on the large bottom flue of sintering machine by fin pipe waste heat boiler, make full use of reclaim in the existing place of sintering machine sintering machine residual heat resources, accomplished rational energy, effectively, cascade utilization, low equipment investment, floor space are little, the superheated steam produced is for generating, there is significant economic benefit and social benefit, sintering machine can not be affected simultaneously and produce.
Description
Technical field
The utility model relates to and is a kind ofly built in the fin pipe waste heat boiler that the large bottom flue of sintering machine uses, and belongs to steel smelting equipment technical field.
Background technology
In existing steel making equipment, the belt-cooling machine of sintering machine or the waste gas residual heat of central cooler, generally recycle to produce superheated steam, in order to generate electricity or to use it for anything else.But the waste gas residual heat of sintering machine itself is not yet generally recycled, minority iron and steel enterprise is only had to have employed external (built-in) formula waste-heat recovery device (waste heat boiler, heat pipe evaporator etc.).As everyone knows, sintering machine after firing, along with pallet is moved from head toward tail, utilizes that the induced draft blower withdraws combustion air on flue is counter to be burnt, and the waste gas after its burning passes into flue discharged to chimney via tens pairs of wireways.Generally, the waste gas SO2 content of 1# ~ 4# the airduct being in head and 2 ~ 3 airducts being in tail is few, its waste gas does not need desulfurization, directly drain via bottom flue, and the waste gas SO2 content of all the other airducts is more, its waste gas needs desulfurization, then via large flue discharged to deduster and desulfurizer.
As shown in Fig. 1 external waste-heat recovery device, the large flue 2 of so-called sintering machine external waste-heat recovery device namely below sintering machine 1 and bottom flue 3 cut off with electrically operated valve 4,7 respectively, by the waste gas in sintering machine 1 lower tail about 5 wireways through by-pass flue 10,11, valve 5,8 leads to steam superheater 12,14 and steam generator 13,15, then through valve 6,9, by-pass flue 16,17 gets back to flue 2 and flue 3.The steam superheater of large and small flue and steam generator share 1 drum 18.Operationally, valve-off 4,7, open valve 5,6,8,9, guide the waste gas in about 2 wireways on the waste gas in the wireway of about 3 on large flue 2 and bottom flue 3 into steam superheater 12,14 and steam generator 13,15 respectively, 13,15 vapour produced, aqueous mixtures carry out carbonated drink separation through drum 18, saturated vapor after separation flows through steam superheater 12,14, is heated to temperature required rear outer for generating or outer for it.
The shortcoming that this sintering machine external waste-heat recovery device exists is:
(1) external is arranged and is placed on outside sintering machine main factory building by waste heat boiler, adds floor space, adds device support and platform, pipeline, and for sintering plant, most enterprise does not possess the condition that external is arranged;
(2) by-pass flue increased is difficult to arrange;
(3) add 6 major diameter Flue valves, add equipment investment;
(4) for the waste gas with waste heat recovery value of some other airduct not derivative, can not add up utilization, namely can not accomplish energy cascade utilization, and the temperature of superheated steam can not get reliable guarantee.
Shown in waste-heat recovery device as built-in in Fig. 2, the built-in waste-heat recovery device of so-called sintering machine, large flue 2 below sintering machine 1 is divided into two sections of large flues by superheater and heat pipe evaporator: first flue 2-1 ', second largest flue 2-2 ', first flue 2-1 ' is connected with superheater import, second largest flue 2-2 ' exports with heat pipe evaporator and is connected, bottom flue 3 is divided into two sections of bottom flues by heat pipe evaporator: the first bottom flue 3-1 ', second bottom flue 3-2 ', first bottom flue 3-1 ' is connected with heat pipe evaporator import, second bottom flue 3-2 ' exports with heat pipe evaporator and is connected.Operationally, heat released by the overheated tubular evaparator 5,6 of waste gas streams in about 5 wireways on large bottom flue 2, the vapour that heat pipe evaporator 5,6 absorption heat produces, aqueous mixtures carry out carbonated drink separation through drum 7, saturated vapor after separation flows to steam superheater 4, is heated to temperature required rear outer for generating or outer for it.
The shortcoming that the built-in waste-heat recovery device of this sintering machine exists is:
Superheater and heat pipe evaporator directly insert large bottom flue, and operationally, load variations is frequent for sintering machine, be directed at superheater and heat pipe evaporator generation local stress formation leakage, cause parking accident, affect sintering machine and produce, and heat pipe evaporator can not dry combustion method, easy booster.
Utility model content
The utility model object is for above problem, provides that a kind of floor space is little, metal consumption is few, small investment and operating cost low; And waste heat boiler stop using can not affect sintering machine produce the fin pipe waste heat boiler system be built on the large bottom flue of sintering machine.
The utility model comprises large flue, bottom flue, large flue steam superheater, bottom flue steam superheater, large flue finned-tube evaporator, bottom flue finned-tube evaporator, drum, the water supply system of sintering machine; Described large flue, bottom flue comprise some flue tube couplings respectively, and every root flue tube coupling is respectively equipped with at least one wireway; Described large flue steam superheater is connected between two adjacent flue tube couplings of large flue, and described bottom flue steam superheater is connected between two adjacent flue tube couplings of bottom flue; Described large flue finned-tube evaporator is connected between two adjacent flue tube couplings of the large flue of large flue steam superheater output side, and described bottom flue finned-tube evaporator is connected between two adjacent flue tube couplings of the bottom flue of bottom flue steam superheater output side; The water side of described water supply system connects the water inlet end of drum, the water side of described drum is connected with the water inlet end of large flue finned-tube evaporator, bottom flue finned-tube evaporator respectively, the water side of large flue finned-tube evaporator, bottom flue finned-tube evaporator connects drum respectively, and the outlet side of described drum is connected with the inlet end of large flue steam superheater, bottom flue steam superheater respectively.
The utility model two steam superheaters are arranged on the flue between large bottom flue afterbody wireway, flue gas in sintering machine afterbody about two wireways flows through steam superheater, one-level finned-tube evaporator is mixed into the flue gas in wireway after releasing heat, be mixed into secondary finned-tube evaporator with the flue gas in wireway after releasing heat, mix with the flue gas in wireway below after releasing heat and discharged to chimney through air-introduced machine by large bottom flue.The utility model is because being directly arranged on the large bottom flue of sintering machine by fin pipe waste heat boiler, make full use of reclaim in the existing place of sintering machine sintering machine residual heat resources, accomplished rational energy, effectively, cascade utilization, low equipment investment, floor space are little, the superheated steam produced, for generating, has significant economic benefit and social benefit.Sintering machine can not be affected produce simultaneously, steel enterprise sintering machine industry can be widely used in.
Large flue finned-tube evaporator described in the utility model comprises large flue one-level finned-tube evaporator and large flue secondary finned-tube evaporator, and described bottom flue finned-tube evaporator comprises bottom flue one-level finned-tube evaporator and bottom flue secondary finned-tube evaporator; Described large flue secondary finned-tube evaporator is arranged between two adjacent flue tube couplings of the large flue of large flue one-level finned-tube evaporator output side; Described bottom flue secondary finned-tube evaporator is arranged between two adjacent flue tube couplings of the bottom flue of bottom flue one-level finned-tube evaporator output side.The utility model can according to field condition and user's requirement, and on flue, subsection setup finned-tube evaporator, also can arrange multiple finned-tube evaporator.
Accompanying drawing explanation
Fig. 1 is prior art structural representation.
Fig. 2 is the another kind of structural representation of prior art.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the left view of Fig. 3.
Detailed description of the invention
As shown in Fig. 3,4,5, the utility model comprises large flue 1, bottom flue 2, large flue steam superheater 3, bottom flue steam superheater 15, large flue one-level finned-tube evaporator 4, bottom flue one-level finned-tube evaporator 13, large flue secondary finned-tube evaporator 5, bottom flue secondary finned-tube evaporator 14, drum 6, the water supply system 7 of sintering machine.
Described large flue 1 and bottom flue 2 comprise the first flue tube coupling 9, second flue tube coupling 10, the 3rd flue tube coupling 11, the 4th flue tube coupling 12 respectively, described first flue tube coupling 9 is provided with two wireways 8, described second flue tube coupling 10 is provided with a wireway 8, described 3rd flue tube coupling 11 is provided with two wireways 8, and described 4th flue tube coupling 12 is provided with a wireway 8;
Large flue steam superheater 3 and bottom flue steam superheater 15 are connected respectively between the first flue tube coupling 9 and the second flue tube coupling 10 of large flue 1 and bottom flue 2.
Described large flue one-level finned-tube evaporator 4 and bottom flue one-level finned-tube evaporator 13 are connected respectively between the second flue tube coupling 10 and the 3rd flue tube coupling 11 of large flue 1 and bottom flue 2.
Described large flue secondary finned-tube evaporator 5 and bottom flue secondary finned-tube evaporator 14 are connected respectively between the 3rd flue tube coupling 11 and the 4th flue tube coupling 12 of large flue 1 and bottom flue 2.
The water side of water supply system 7 connects the water inlet end of drum 6, the water side of drum 6 is connected with the water inlet end of the one-level finned-tube evaporator 4 on large flue 1 and bottom flue 2, secondary finned-tube evaporator 5 respectively, one-level finned-tube evaporator 4 is connected drum 6 respectively with the water side of secondary finned-tube evaporator 5, and the outlet side of drum 6 is connected with the inlet end of large flue steam superheater 3 and bottom flue steam superheater 15 respectively.
Claims (2)
1. one kind is built in the fin pipe waste heat boiler system on the large bottom flue of sintering machine, comprise the large flue of sintering machine, bottom flue, large flue steam superheater, bottom flue steam superheater, large flue finned-tube evaporator, bottom flue finned-tube evaporator, drum, water supply system, it is characterized in that: described large flue, bottom flue comprise some flue tube couplings respectively, every root flue tube coupling is respectively equipped with at least one wireway; Described large flue steam superheater is connected between the adjacent flue tube coupling of two of large flue, and described bottom flue steam superheater is connected between the adjacent flue tube coupling of two of bottom flue; Described large flue finned-tube evaporator is connected between two adjacent flue tube couplings of the large flue of large flue steam superheater output side, and described bottom flue finned-tube evaporator is connected between two adjacent flue tube couplings of the bottom flue of bottom flue steam superheater output side; The water side of described water supply system connects the water inlet end of drum, the water side of described drum is connected with the water inlet end of large flue finned-tube evaporator, bottom flue finned-tube evaporator respectively, the water side of large flue finned-tube evaporator, bottom flue finned-tube evaporator connects drum respectively, and the outlet side of described drum is connected with the inlet end of large flue steam superheater, bottom flue steam superheater respectively.
2. a kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine according to claim 1, it is characterized in that: described large flue finned-tube evaporator comprises large flue one-level finned-tube evaporator and large flue secondary finned-tube evaporator, described bottom flue finned-tube evaporator comprises bottom flue one-level finned-tube evaporator and bottom flue secondary finned-tube evaporator; Described large flue secondary finned-tube evaporator is arranged between two adjacent flue tube couplings of the large flue of large flue one-level finned-tube evaporator output side; Described bottom flue secondary finned-tube evaporator is arranged between two adjacent flue tube couplings of the bottom flue of bottom flue one-level finned-tube evaporator output side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298722.XU CN204665223U (en) | 2015-05-11 | 2015-05-11 | A kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520298722.XU CN204665223U (en) | 2015-05-11 | 2015-05-11 | A kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine |
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| Publication Number | Publication Date |
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| CN204665223U true CN204665223U (en) | 2015-09-23 |
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| CN201520298722.XU Active CN204665223U (en) | 2015-05-11 | 2015-05-11 | A kind of fin pipe waste heat boiler system be built on the large bottom flue of sintering machine |
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| CN (1) | CN204665223U (en) |
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2015
- 2015-05-11 CN CN201520298722.XU patent/CN204665223U/en active Active
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