CN101532789A - Waste heat recovery heat exchange device of belt type updraft sintering machine - Google Patents
Waste heat recovery heat exchange device of belt type updraft sintering machine Download PDFInfo
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- CN101532789A CN101532789A CN200910135782A CN200910135782A CN101532789A CN 101532789 A CN101532789 A CN 101532789A CN 200910135782 A CN200910135782 A CN 200910135782A CN 200910135782 A CN200910135782 A CN 200910135782A CN 101532789 A CN101532789 A CN 101532789A
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- heat exchange
- heat exchanger
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- fresh air
- air inlet
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Abstract
The invention relates to a waste heat recovery heat exchange device of belt type updraft sintering machine which includes a heat exchange case, an right upper part of the heat exchange case is equipped with a waste heat inlet, a left upper part of the heat exchanger case is equipped with a waste heat outlet, a down part of the heat exchanger case is equipped with a collect dust bucket, a middle part of the heat exchanger case is equipped with a middle gas chamber, a right side of the heat exchanger case is equipped with a fresh air inlet, a left side of the heat exchanger is equipped with a fresh air outlet; two sides of the middle gas chamber are equipped with some exchanging gas chambers symmetrically; an air inlet clapboard is welded on the fresh air inlet, the air inlet clapboard connects with an exchange gas chamber on right side of the heat exchanger case inner through certain connecting pipes. The waste heat recovery heat exchange device has advantages of increasing maneuverability of each post in manufacturing system, reducing coal consumption amount 20-22%, reducing coking rate 1.5-2%, saving fuel consumption amount, reducing manufacturing cost and increasing manufacturing ability.
Description
Technical field
The present invention relates to heat exchanger field, relate in particular to a kind of waste heat recovery heat exchange device of belt updraft sintering machine.
Background technology
Conventional sintering-blast furnace production system is to utilize the oxygen in the fresh wind that material is carried out oxidation, and reduces with coke, to produce product.Basic and the outside air temperature of employed fresh wind-warm syndrome degree is more or less the same in the actual production, can draw a large amount of heat so that whole system reaches thermal balance; And the flue gas heat that environmental protection facility such as dust-precipitator is taken away in the production system spills into and causes thermal loss in the air, in this case for guaranteeing that output can only strengthen the fuel use amount, has increased production cost, has caused the significant wastage of resource.And traditional heat exchanger generally is welded by housing, dividing plate, tube connector, fresh air directly advances directly, air-flow skewness and flow velocity are fast, greatly reduced rate of heat exchange, for guaranteeing the outlet temperature of fresh air, can only increase the tube connector of heat exchanger, heat exchange mouth volume is increased, it is big to take up room, thereby has increased investment cost.
Summary of the invention
The purpose of this invention is to provide a kind of waste heat recovery heat exchange device of belt updraft sintering machine, maximally utilise existing resource, to reduce fuel consumption, to reduce production costs, save social resources.
The objective of the invention is to be achieved through the following technical solutions:
A kind of waste heat recovery heat exchange device of belt updraft sintering machine, comprise the heat exchange housing, the upper right quarter of described heat exchange housing is provided with the waste hot gas import, the upper left quarter of heat exchange housing is provided with the waste hot gas outlet, the heat exchange lower part of frame is provided with the collection ash bucket, the middle part of heat exchange housing is provided with middle gas chamber, and the right side of heat exchange housing is provided with the fresh air import, and the left side of heat exchange housing is provided with the fresh air outlet; The both sides of described middle gas chamber are respectively equipped with some symmetrical exchange air chambers, between described middle gas chamber and the exchange air chamber, described exchange air chamber all is connected by tube connector with exchanging between the air chamber; Described fresh air import department is welded with the air inlet dividing plate of perforation net distribution, and described air inlet dividing plate is connected by the exchange air chamber of tube connector with the described heat exchange enclosure interior rightmost side.
Beneficial effect of the present invention is: by improving fresh wind-warm syndrome degree and oxygen utilization rate in sintering-blast furnace system, improved the operability in each post in the production system, reduce coal consumption 20-22%, reduce burnt rate 1.5-2%, the fuel savings use amount, reduce production cost, improved production capacity.
Description of drawings
Fig. 1 is the structural representation of the waste heat recovery heat exchange device of the described belt updraft sintering machine of the embodiment of the invention;
Fig. 2 is the structural representation of air inlet dividing plate in the waste heat recovery heat exchange device of the described belt updraft sintering machine of the embodiment of the invention.
Among the figure:
1, heat exchange housing; 201, waste hot gas import; 202, waste hot gas outlet; 3, collection ash bucket; 4, middle gas chamber; 501, fresh air import; 502, fresh air outlet; 6, exchange air chamber; 7, tube connector; 8, air inlet dividing plate.
The specific embodiment
Shown in Fig. 1-2, the waste heat recovery heat exchange device of the described belt updraft sintering machine of the embodiment of the invention, comprise heat exchange housing 1, the upper right quarter of described heat exchange housing 1 is provided with waste hot gas import 201, the upper left quarter of heat exchange housing 1 is provided with waste hot gas outlet 202, and the bottom of heat exchange housing 1 is provided with collection ash bucket 3, and the middle part of heat exchange housing 1 is provided with middle gas chamber 4, the right side of heat exchange housing 1 is provided with fresh air import 501, and the left side of heat exchange housing 1 is provided with fresh air outlet 502; The both sides of described middle gas chamber 4 are respectively equipped with some symmetrical exchange air chambers 6, and middle gas chamber 4 all is connected by some tube connectors 7 with exchange air chamber 6 with exchange air chamber 6, exchange air chamber 6; Described fresh air import 501 places are welded with the air inlet dividing plate 8 that is rule perforation net distribution, and air inlet dividing plate 8 is connected by the exchange air chamber 6 of some tube connectors 7 with the described heat exchange housing 1 inner rightmost side.Compare increase exchange air chamber 6 Combination Welding with conventional heat exchanger, back exchange air chamber 6 and previous exchange air chamber 6 Rotate 180 degree reach the reduction gas flow rate, uniform mixing gas mixture, increase the holdup time of fresh air in heat exchanger, improve heat exchanger effectiveness.
When concrete the use, tube connector 7 imports rightmost side exchange air chamber 6 with live gas, with using tube connector 7 UNICOMs behind a back exchange air chamber 6 Rotate 180 degree, is soldered to fresh air successively and exports 502 places, with interchanger housing 1 welded closure again; Wherein waste hot gas import 201 according to on-site actual situations from top or the sidepiece setting.
Data show according to statistics, and behind the use heat exchanger, fresh wind-warm syndrome degree is promoted to 80-110 ℃ by 15-20 ℃, have reduced the used fuel of fresh wind intensification, greatly reduce coal consumption, and day is sparing in the use of coal about 3 tons.Effectively improved the utilization rate of oxygen in the fresh wind, reduced the air use amount, total blast volume is by 33000 original-35000m
3/ h is reduced to 26000-29000m
3/ h has reduced production cost, has also reduced the exhaust-gas treatment amount simultaneously, has reduced environmental protection pressure.Make full use of the heat of waste hot gas,, the flow velocity of fresh air is reduced by the exchange air chamber, in the exchange air chamber, fully mixed, increase the holdup time of fresh air in the heat exchange air chamber, improve heat exchanger effectiveness, waste heat is utilized.Improve fresh wind-warm syndrome degree and utilization rate, improved the operability in post, reduce fuel use amount 10-15%, reduced production cost, improved production capacity.Make full use of the heat of waste hot gas,, the flow velocity of fresh air is reduced by the exchange air chamber, in the exchange air chamber, fully mixed, increase the holdup time of fresh air in the heat exchange air chamber, improve heat exchanger effectiveness, waste heat is utilized.Improve fresh wind-warm syndrome degree and utilization rate, improved the operability in post, reduce burnt rate 1.5-2%, saved the coke use amount, reduced production cost, improved production capacity.
Claims (1)
1, a kind of waste heat recovery heat exchange device of belt updraft sintering machine, comprise heat exchange housing (1), the upper right quarter of described heat exchange housing (1) is provided with waste hot gas import (201), the upper left quarter of heat exchange housing (1) is provided with waste hot gas outlet (202), the bottom of heat exchange housing (1) is provided with collection ash bucket (3), the middle part of heat exchange housing (1) is provided with middle gas chamber (4), the right side of heat exchange housing (1) is provided with fresh air import (501), and the left side of heat exchange housing (1) is provided with fresh air outlet (502); It is characterized in that: the both sides of described middle gas chamber (4) are respectively equipped with some symmetrical exchange air chambers (6), and middle gas chamber (4) all is connected by tube connector (7) with exchange air chamber (6) with exchange air chamber (6), exchange air chamber (6); Described fresh air import (501) locates to be welded with the air inlet dividing plate (8) of perforation net distribution, and air inlet dividing plate (8) is connected with the exchange air chamber (6) of the inner rightmost side of described heat exchange housing (1) by tube connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910135782A CN101532789A (en) | 2009-04-29 | 2009-04-29 | Waste heat recovery heat exchange device of belt type updraft sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910135782A CN101532789A (en) | 2009-04-29 | 2009-04-29 | Waste heat recovery heat exchange device of belt type updraft sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101532789A true CN101532789A (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910135782A Pending CN101532789A (en) | 2009-04-29 | 2009-04-29 | Waste heat recovery heat exchange device of belt type updraft sintering machine |
Country Status (1)
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| CN (1) | CN101532789A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627790A (en) * | 2014-11-25 | 2016-06-01 | 江苏恒力达机械有限公司 | Air heat exchanger |
| CN106152827A (en) * | 2016-08-02 | 2016-11-23 | 南通白云环保工程设备有限公司 | A kind of afterheat recovery type stands case |
-
2009
- 2009-04-29 CN CN200910135782A patent/CN101532789A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627790A (en) * | 2014-11-25 | 2016-06-01 | 江苏恒力达机械有限公司 | Air heat exchanger |
| CN106152827A (en) * | 2016-08-02 | 2016-11-23 | 南通白云环保工程设备有限公司 | A kind of afterheat recovery type stands case |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090916 |