CN203336981U - Novel sintered ring refrigerator flue gas waste heat recycling system - Google Patents
Novel sintered ring refrigerator flue gas waste heat recycling system Download PDFInfo
- Publication number
- CN203336981U CN203336981U CN2013202537411U CN201320253741U CN203336981U CN 203336981 U CN203336981 U CN 203336981U CN 2013202537411 U CN2013202537411 U CN 2013202537411U CN 201320253741 U CN201320253741 U CN 201320253741U CN 203336981 U CN203336981 U CN 203336981U
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- waste heat
- flue gas
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- cooler
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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
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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 novel sintered ring refrigerator flue gas waste heat recycling system. The novel sintered ring refrigerator flue gas waste heat recycling system comprises a sintered ring refrigerator flue air system, a waste heat boiler system, a flue gas circulation system and an induced draft fan system. In order to guarantee that the waste heat recycling system does not affect cooling temperature of a sinter ore, each flue is provided with an electric air door; when the utilization coefficient of a sintering machine is relatively high and air temperature is relatively high in summer, flue gas can be appropriately diffused so that the sinter ore can be cooled to reasonable temperature. The waste heat boiler system is a system device utilizing waste heat of the flue gas to produce low-pressure steam. The flue gas circulation system is composed of a circulation draught fan, the flue and the like, the waste heat of the flue gas can be fully used, the temperature parameter of the flue gas is improved so that the steam parameter can be improved, and the waste heat is recycled more fully. The induced draft fan system is connected with the waste heat boiler system. The novel sintered ring refrigerator flue gas waste heat recycling system is compact in structure, small in occupied area, little in investment, and easy to operate and maintain. The novel sintered ring refrigerator flue gas waste heat recycling system improves the waste heat using ratio by about 30% compared with a common recycling system.
Description
Technical field
The utility model relates to sintering circular-cooler She thermal resource and reclaims field, relates in particular to three sections flue gas recirculation recycling systems of central cooler.
Background technology
Sintering is one important procedure in steel manufacture process, and for blast furnace ironmaking is supplied raw materials, the sintering circuit energy consumption accounts for the 9%-12% of whole iron and steel enterprise total energy consumption, is only second to Iron-smelting.In sintering production process, there is nearly 50% heat energy to enter atmosphere with the sensible heat form of sinter fume and cooling machine waste gas.
From high efficiency and the economy angle analysis of realizing energy cascade utilization, cogeneration is one of the most effective UTILIZATION OF VESIDUAL HEAT IN approach.Enter the cooling mineral temperature of central cooler from sintering and be generally 700～800 ℃, cold air is raise by air blast temperature after central cooler high temperature sintering mineral aggregate layer, first three section residual heat resources have recoverable value: one section wind-warm syndrome reaches 300～450 ℃, two sections wind-warm syndrome are generally 250～300 ℃, and three sections wind-warm syndrome are generally 150 ℃ of left and right.In order to take full advantage of the useless fume afterheat resource of central cooler, adopt two pressure waste heat boilers, three sections flue gas recirculation utilizations, improve boiler high temperature porch flue-gas temperature, fully reclaims useless fume afterheat and produce steam.
Air enters boiler after heating up by the bed of material under the effect of air blast, and the flue gas after heat release enters atmosphere under the effect of air-introduced machine; Native system recycles three sections fume afterheats, utilizes circulating fan that three sections flue gases are blasted to one section and two sections bed of material lower floor bellows.So both meet the explained hereafter requirement, improved again utilization rate of waste heat.
Summary of the invention
For solving the problem and blemish of above-mentioned middle existence, the utility model provides a kind of novel sintered central cooler flue gas She heat recovery system: system is simple, investment saving, low from electricity consumption.This system is applicable to the requirement of sintering circular-cooler, and the flue-gas temperature of boiler high temperature entrance, than 20 ℃ of left and right of the raising of common mode, improves UTILIZATION OF VESIDUAL HEAT IN efficiency 30% left and right.
A kind of sintering circular-cooler flue gas waste heat recovery system that the utility model is related, this recovering system comprises: sintering circular-cooler air and gas system, afterheat boiler system, smoke circulating system and draught fan system; The sintering circular-cooler air and gas system comprises sintering circular-cooler, air blast, MOD and smoke wind pipe; Afterheat boiler system comprises waste heat boiler, drum, feed pump, oxygen-eliminating device, and system adopts from Deoxidization method; Smoke circulating system comprises circulating fan, MOD and smoke wind pipe.The flue gas of three sections blasts one section or two sections bed of material lower end bellows by circulating fan and recycles.Draught fan system comprises air-introduced machine, MOD and chimney, the flue gas after waste heat recovery by air-introduced machine discharged to atmosphere.
The beneficial effect of the technical scheme that the utility model provides is: this device can fully have the fume afterheat that utilizes of gradient, improves into kiln gas temperature, flue gas utilization rate and reduces its fluctuation range; Compact conformation, floor space is little, small investment; Improve UTILIZATION OF VESIDUAL HEAT IN efficiency 30% than general device.
The accompanying drawing explanation
Fig. 1 is sintering circular-cooler flue gas waste heat recovery system process chart.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail:
Fig. 1 is device schematic diagram of the present utility model, this device comprises sintering circular-cooler air and gas system, afterheat boiler system, smoke circulating system and draught fan system, wherein, sinter cooler air and gas system: formed by sinter cooler first paragraph 3, sinter cooler second segment 4, air blast 10, air blast 9, MOD;
Afterheat boiler system: comprise waste heat boiler body 6, feed pump, drum and oxygen-eliminating device; Native system adopts two pressure waste heat boilers, from Deoxidization method.
Smoke circulating system: comprise the 3rd section 5 of sinter cooler, circulating fan 8, MOD and smoke wind pipe.Wherein the 3rd of central cooler the section causes respectively by circulating fan the circulation that central cooler first paragraph and second segment central cooler bottom bellows complete flue gas.
Draught fan system: comprise air-introduced machine 7, smoke wind pipe and chimney 11; Wherein, after mixing in boiler, the two-way flue gas that enters waste heat boiler enters chimney 11 under the effect of air-introduced machine 7;
This embodiment is that waste heat boiler utilizes the waste heat flue gas to adopt three sections flue gas recirculation modes to produce steam.
The 3rd section 5 flue gas out of sinter cooler enters sinter cooler first paragraph 3 and second segment 4 by blower fan, at first need to meet the first paragraph exhaust gas volumn and improve the boiler inlet flue-gas temperature, in the situation that first paragraph exhaust gas volumn affluence is opened the MOD of second segment branch road.One section and two sections flue gases of sintering circular-cooler enter respectively boiler high temperature, low temperature entrance, produce respectively the steam of high pressure, low pressure parameter.Flue gas by after residual heat boiler for exchanging heat again through air-introduced machine, chimney discharged to atmosphere.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a sintering circular-cooler flue gas waste heat recovery system, comprising: sintering circular-cooler flue gas system, afterheat boiler system, smoke circulating system and draught fan system;
Sintering circular-cooler flue gas system: the gas collection chimney is set respectively at one section of central cooler, two sections and three sections fan housing tops, top corresponding to bellows, send respectively the hot waste gas of one section and two sections bellows of central cooler to waste heat boiler high temperature and low temperature air inlet mouth, comprise sintering circular-cooler machine, air blast, MOD;
Afterheat boiler system: system adopts two pressure waste heat boilers, and the high low temperature air inlet that high low-temperature flue gas wind does not enter waste heat boiler produces high Low Temperature Steam, comprises waste heat boiler, drum, oxygen-eliminating device and feed pump;
Smoke circulating system: the hot waste gas of three sections bellows is blasted to one section and two sections bed of material entrances again by circulating fan, comprise circulating fan and MOD;
Draught fan system: the hot waste gas after waste heat boiler utilizes is directly emptying by air-introduced machine, comprises air-introduced machine, MOD and chimney.
2. a kind of sintering circular-cooler flue gas waste heat recovery system according to claim 1, is characterized in that, described sinter cooler at least comprises five sections, and the cigarette temperature in every section zone varies in size.
3. a kind of sintering circular-cooler flue gas waste heat recovery system according to claim 1, it is characterized in that, three sections bellows tops arrange corresponding fan housing, by after smoke wind pipe, MOD and circulating fan pressurization, entering one section and two sections material layer lower part bellows entrances, at first consider that meeting one section air quantity improves the boiler high temperature entrance flue gas temperature, fill into the entrance of two sections bed of material lower floor bellows in the situation that rich, then absorbing heat by the bed of material forms high-temperature flue gas and gets back to the top fan housing, improve the boiler low-temperature entrance flue gas temperature, thereby complete the circulation of flue gas; The air blast of two sections entrances is opened and is controlled by five sections cigarette air temperatures, when temperature surpasses the parameter of setting, regulate the circulating fan aperture and open original air blast reduction flue-gas temperature simultaneously, recycling of three sections flue gases makes the central cooler flue gas waste heat recovery more abundant, and then improves the Boiler Steam parameter.
4. a kind of sintering circular-cooler flue gas waste heat recovery system according to claim 1, waste heat boiler is two residual neat recovering systems of pressing, and adopts from Deoxidization method; Flue gas after reclaiming by waste heat boiler is directly emptying by air-introduced machine.
5. a kind of sintering circular-cooler flue gas waste heat recovery system according to claim 2, five sections central cooler material layer lower parts and top all arrange independently bellows, and when three sections air quantity can not meet two sections air quantity, two sections air blasts need to be opened work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202537411U CN203336981U (en) | 2013-05-06 | 2013-05-06 | Novel sintered ring refrigerator flue gas waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202537411U CN203336981U (en) | 2013-05-06 | 2013-05-06 | Novel sintered ring refrigerator flue gas waste heat recycling system |
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| CN203336981U true CN203336981U (en) | 2013-12-11 |
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| CN2013202537411U Expired - Fee Related CN203336981U (en) | 2013-05-06 | 2013-05-06 | Novel sintered ring refrigerator flue gas waste heat recycling system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374209A (en) * | 2014-05-29 | 2015-02-25 | 山西太钢不锈钢股份有限公司 | Method for recovering sintering waste heat by using fan and rear guide vane of the fan |
| CN105066713A (en) * | 2015-07-21 | 2015-11-18 | 鞍钢集团工程技术有限公司 | Process capable of improving waste heat recovery yield of annular cooler |
| CN105318735A (en) * | 2015-04-28 | 2016-02-10 | 李正福 | Device and method used for cooling blast furnace circulating water with sintering low-temperature exhaust heat |
| CN106225491A (en) * | 2016-07-19 | 2016-12-14 | 武汉都市环保工程技术股份有限公司 | Sinter cooler smoke waste heat utilization system and sinter cooler |
| CN106931792A (en) * | 2015-12-30 | 2017-07-07 | 中冶长天国际工程有限责任公司 | The method and apparatus of central cooler waste gas comprehensive utilization |
| CN107687767A (en) * | 2017-08-15 | 2018-02-13 | 中冶华天工程技术有限公司 | A kind of sintering deposit residual neat recovering system and its exhaust heat recovering method |
| CN112629270A (en) * | 2020-08-28 | 2021-04-09 | 广西鱼峰水泥股份有限公司 | Low-temperature waste heat power generation AQC boiler |
| CN113916011A (en) * | 2021-09-10 | 2022-01-11 | 马鞍山钢铁股份有限公司 | Sintering cooling waste heat micro-positive pressure recovery control system and method |
-
2013
- 2013-05-06 CN CN2013202537411U patent/CN203336981U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374209A (en) * | 2014-05-29 | 2015-02-25 | 山西太钢不锈钢股份有限公司 | Method for recovering sintering waste heat by using fan and rear guide vane of the fan |
| CN105318735B (en) * | 2015-04-28 | 2017-10-31 | 李正福 | A kind of utilization sintering low temperature waste heat cools down the device of circulation water of blast furnace |
| CN105318735A (en) * | 2015-04-28 | 2016-02-10 | 李正福 | Device and method used for cooling blast furnace circulating water with sintering low-temperature exhaust heat |
| CN105066713A (en) * | 2015-07-21 | 2015-11-18 | 鞍钢集团工程技术有限公司 | Process capable of improving waste heat recovery yield of annular cooler |
| CN105066713B (en) * | 2015-07-21 | 2017-04-19 | 鞍钢集团工程技术有限公司 | Process capable of improving waste heat recovery yield of annular cooler |
| CN106931792B (en) * | 2015-12-30 | 2019-10-01 | 中冶长天国际工程有限责任公司 | The method and apparatus of ring cold machine exhaust gas comprehensive utilization |
| CN106931792A (en) * | 2015-12-30 | 2017-07-07 | 中冶长天国际工程有限责任公司 | The method and apparatus of central cooler waste gas comprehensive utilization |
| CN106225491A (en) * | 2016-07-19 | 2016-12-14 | 武汉都市环保工程技术股份有限公司 | Sinter cooler smoke waste heat utilization system and sinter cooler |
| CN107687767A (en) * | 2017-08-15 | 2018-02-13 | 中冶华天工程技术有限公司 | A kind of sintering deposit residual neat recovering system and its exhaust heat recovering method |
| CN107687767B (en) * | 2017-08-15 | 2019-07-26 | 中冶华天工程技术有限公司 | A kind of sinter residual neat recovering system and its exhaust heat recovering method |
| CN112629270A (en) * | 2020-08-28 | 2021-04-09 | 广西鱼峰水泥股份有限公司 | Low-temperature waste heat power generation AQC boiler |
| CN112629270B (en) * | 2020-08-28 | 2023-05-02 | 广西鱼峰水泥股份有限公司 | AQC boiler for low-temperature waste heat power generation |
| CN113916011A (en) * | 2021-09-10 | 2022-01-11 | 马鞍山钢铁股份有限公司 | Sintering cooling waste heat micro-positive pressure recovery control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING BESTPOWER BLUESKY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING BESTPOWER BLUESKY TECHNOLOGY LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100096, Beijing, Haidian District, Xisanqi building materials East Road, No. 18, three floor, Bai Hui building Patentee after: BEIJING BAINENG BLUE SKY TECHNOLOGY CO., LTD. Address before: 100096, Beijing, Haidian District, Xisanqi building materials East Road, No. 18, three floor, Bai Hui building Patentee before: Beijing Bestpower Bluesky Technology Co., Ltd. |
|
| 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: 20131211 Termination date: 20190506 |