CN206454491U - A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat - Google Patents
A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat Download PDFInfo
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- CN206454491U CN206454491U CN201720129648.8U CN201720129648U CN206454491U CN 206454491 U CN206454491 U CN 206454491U CN 201720129648 U CN201720129648 U CN 201720129648U CN 206454491 U CN206454491 U CN 206454491U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat, belongs to carbon dioxide recovery plant technical field, for emission reduction to be fixed to the carbon dioxide in flue gas and obvious heat of smoke recovery is carried out simultaneously.Its technical scheme is：The charging aperture of granulation reactor is connected with the slag runner of blast furnace; it is granulated the discharging opening of reactor and being connected for fluidized-bed reactor; fluidized-bed reactor discharging opening is connected with fluid-bed heat exchanger; slag-drip opening is arranged at the bottom of fluid-bed heat exchanger; air-introduced machine is connected by pipeline with granulation reactor bottom, fluid-bed heat exchanger bottom respectively; granulation reactor gas outlet, fluid-bed heat exchanger gas outlet are connected with fluidized-bed reactor air inlet, and fluidized-bed reactor gas outlet is connected with deduster, waste heat boiler, chimney successively.The utility model is realized fixes carbon dioxide, reduction CO2 emission, while the mesh of blast furnace slag and obvious heat of smoke is reclaimed, with significant economic benefit and social benefit using blast furnace slag.
Description
Technical field
The utility model, which is related to, a kind of emission reduction is fixed to the carbon dioxide in flue gas using blast furnace slag and while carries out
The device that obvious heat of smoke is reclaimed, belongs to carbon dioxide recovery plant technical field.
Background technology
Carbon dioxide mineralising fix be it is a kind of realize the stable effective ways sealed up for safekeeping of carbon dioxide, this method utilizes alkalescence
Metal aoxidizes the carbonate compound for being generated with carbon dioxide reaction and being capable of long-time stable presence, without monitoring, environmental risk
It is smaller, it is considered to be most one of carbon dioxide method of disposal of development potentiality.Blast furnace slag is the waste residue that blast furnace process is produced,
Main component is CaO, MgO, SiO2、Al2O3Deng wherein CaO, content of MgO are respectively 38-45%, 5-10%, with solid well
Carbon ability.Meanwhile, blast furnace slag is big in iron and steel enterprise's yield, and carbon dioxide fixation can be realized inside iron and steel enterprise, reduces steel
The discharge of iron enterprise carbon dioxide.
The carbonating fixation for producing Waste Slag progress carbon dioxide using steel meets iron and steel enterprise's productive prospecting
One of major technique.Fix carbon dioxide using blast furnace slag or slag to have implemented, but in the prior art, no matter blast furnace slag
Or slag reacts slow at normal temperatures and pressures, the required reaction time is long, and reaction efficiency is low, it is therefore desirable to which clinker is activated
Or reacted under the conditions of temperature-pressure, thereby result in additional energy and investment operating cost, it is impossible to reach satisfactory
Effect.In face of severe Environmental Protection Situation, the discharge capacity that carbon dioxide is greatly reduced is very urgent, therefore in steel industry
The middle equipment for improving blast furnace slag fixation carbon dioxide is extremely necessary.
Utility model content
Technology to be solved in the utility model is to provide a kind of utilization blast furnace slag and fixes carbon dioxide and reclaim sensible heat
Device, this device can efficiently solve high energy consumption in blast furnace slag carbonation containing Calcium compounds, reaction time length, conversion ratio
Low the problem of, CO2 emissions are reduced, while can be reclaimed to blast-furnace cement sensible heat, the purpose of energy-saving and emission-reduction are reached.
Solving the technical scheme of above-mentioned technical problem is：
A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat, and it is anti-that it includes granulation reactor, fluid bed
Device, fluid-bed heat exchanger, waste heat boiler, deduster and air-introduced machine are answered, the charging aperture of granulation reactor is connected with the slag runner of blast furnace
Connect, the discharging opening of granulation reactor is connected with the charging aperture of fluidized-bed reactor, fluidized-bed reactor discharging opening and fluid bed
Heat exchanger is connected, and slag-drip opening is arranged at the bottom of fluid-bed heat exchanger, and air-introduced machine passes through pipeline and granulation reactor bottom, stream respectively
Heat exchanger of fluidized bed bottom is connected, granulation reactor gas outlet, fluid-bed heat exchanger gas outlet and fluidized-bed reactor air inlet
It is connected, fluidized-bed reactor gas outlet is connected with deduster, waste heat boiler, chimney successively.
Above-mentioned utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat, the fluidized-bed reactor bottom and top
Temperature measurement module is set respectively.
The beneficial effects of the utility model are：
In the utility model, molten blast furnace slag forms high temperature blast furnace solid impurity particle and entered with carbonated flue gas through granulation is broken
After heat exchange of row, abundant carbonation reaction is carried out into fluidized-bed reactor and carbon dioxide in flue gas, while carbonic acid
Change the certain heat of reaction releasing, then blast furnace slag enters fluid-bed heat exchanger and flue gas progress second heat friendship with product after reaction
Change, high-temperature flue gas produces steam through heat exchanger, blast furnace slag is used as making cement material after cooling.
The utility model, which is solved, to need to activate clinker in the prior art or is carried out under the conditions of temperature-pressure
Reaction, thereby results in additional energy and invests the problem of operating cost, realizes and fixes carbon dioxide, reduction by two using blast furnace slag
Aoxidize carbon emission, while reclaiming the mesh of blast-furnace cement sensible heat.The utility model takes full advantage of in steel industry production process and produced
Substantial amounts of blast furnace slag, substantially increase the carbon sequestration efficiency of blast furnace slag, at the same carbonation reaction process be exothermic reaction, pass through cigarette
Gas waste heat recovery realize and improve blast-furnace cement sensible heat recovery, saved substantial contribution, reduce reclaim carbon dioxide into
Control greenhouse gases and energy-saving and emission-reduction are had significant economic benefit and great social benefit by this.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Marked in figure as follows：Blast furnace 1, slag runner 2, granulation reactor 3, fluidized-bed reactor 4, fluid-bed heat exchanger 5, thermometric
Module 6, slag-drip opening 7, deduster 8, waste heat boiler 9, air-introduced machine 10, chimney 11, flue gas analyzer 12.
Embodiment
Utilization blast furnace slag of the present utility model fixes carbon dioxide and reclaims the device of sensible heat by granulation reactor 3, fluidisation
Bed reactor 4, fluid-bed heat exchanger 5, deduster 8, waste heat boiler 9, air-introduced machine 10, chimney 11, temperature measurement module 6, flue gas analysis
Instrument 12 is constituted.
Shown in figure, the charging aperture of granulation reactor 3 is connected with the slag runner 2 of blast furnace 1, is granulated the discharging opening of reactor 3
It is connected with the charging aperture of fluidized-bed reactor 4, the discharging opening of fluidized-bed reactor 4 is connected with fluid-bed heat exchanger 5, fluid bed
Slag-drip opening 7 is arranged at the bottom of heat exchanger 5.High temperature blast furnace slag is flowed into granulation reactor 3 by slag runner 2 and is granulated, then from grain
Change in the entrance fluidized-bed reactor 4 of reactor 3 and carry out carbonation reaction, reacted blast furnace slag particle with the carbon dioxide in flue gas
Heat exchange is carried out into fluid-bed heat exchanger 5, last blast furnace slag is discharged from slag-drip opening 7.
Shown in figure, air-introduced machine 10 is connected by pipeline with granulation reactor 3 bottom, the bottom of fluid-bed heat exchanger 5 respectively
Connect, granulation reactor 3 gas outlet, the gas outlet of fluid-bed heat exchanger 5 are connected with the air inlet of fluidized-bed reactor 4, and fluid bed is anti-
The gas outlet of device 4 is answered to be connected successively with deduster 8, waste heat boiler 9, chimney 11.
It has been shown that, the bottom of fluidized-bed reactor 4 and top are respectively provided with temperature measurement module 6, the import of fluidized-bed reactor 4 and go out in figure
Flue gas analyzer 12 is mounted on mouth flue.
Application method of the present utility model is as follows：
A. blast furnace slag is granulated and once exchanged heat:
Temperature is broken for 1-5mm drops for 1400-1500 DEG C of molten blast furnace slag into granulation reactor 3, is by temperature
120-200 DEG C of coke oven flue gas blasts granulation reactor 3 and drips off into a heat exchange with high-temperature liquid, and the cooling of high temperature drop is converted to
Blast furnace solid impurity particle, blast furnace slag particle temperature is down to 750-800 DEG C, and carbonic acid is carried out by controlling exhaust gas volumn to meet blast furnace solid impurity particle
Change reaction temperature requirement；
B. carbonation reaction：
The high temperature blast furnace solid impurity particle for being granulated reactor 3 enters fluidized-bed reactor 4, high temperature blast furnace solid impurity particle and Jiao after heat exchange
Kiln gas fully carries out carbonation reaction formation carbon sequestration product under the conditions of 650-800 DEG C, reaction time 5-20min, and discharge is high
Slag granules temperature is not less than 650 DEG C.Simultaneously because the carbonation reaction of high temperature blast furnace solid impurity particle and carbon dioxide is that heat release is anti-
Should, flue-gas temperature is improved, and then improve Exposure degree amount；
C. secondary heat exchange：
Blast furnace solid impurity particle and carbon sequestration product enter fluid-bed heat exchanger 5 by the discharging opening of fluidized-bed reactor 4, with the temperature blasted
Spend and carry out secondary heat exchange for 120-200 DEG C of carbonated flue gas, blast furnace slag temperature is brought down below after 250 DEG C by slag-drip opening
7 discharges, the fluidized-bed reactor 4 of carbonated flue gas into upper level carries out sufficient carbonation reaction after heat exchange；
D. heat recovery：
Through the decarburization flue gas removing dust device 8 for being granulated reactor 3, fluid-bed heat exchanger 5 and the heat exchange decarburization of fluidized-bed reactor 4
Steam is produced into waste heat boiler 9, steam is used for generating electricity or being incorporated to existing jet chimney.
In above-mentioned b step, adjustment fluidized-bed reactor 4 import exhaust gas volumn control carbon dioxide in flue gas and blast furnace slag
Mass ratio is 1：5-15.
Compared with prior art, the utility model follows the theory of " treatment of wastes with processes of wastes against one another ", using in steel industry production process
The substantial amounts of blast furnace slag produced is raw material, realizes efficiently and fully CaO and CO in blast furnace slag under the conditions of the adaptive temperature2Reaction,
The carbon sequestration efficiency of CaO in blast furnace slag is improved, while carbonation reaction process is exothermic reaction, is realized by flue gas waste heat recovery
And blast-furnace cement sensible heat recovery is improved, has reached that blast furnace slag fixes CO2Reduce CO2The mesh of blast-furnace cement sensible heat is reclaimed in discharge simultaneously
, there is great social effect to control greenhouse gases and energy-saving and emission-reduction.
Claims (3)
1. a kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat, it is characterised in that：It includes granulation reactor
（3）, fluidized-bed reactor（4）, fluid-bed heat exchanger（5）, deduster（8）, waste heat boiler（9）And air-introduced machine（10）, granulation is instead
Answer device（3）Charging aperture and blast furnace（1）Slag runner（2）It is connected, is granulated reactor（3）Discharging opening and fluidized-bed reactor
（4）Charging aperture be connected, fluidized-bed reactor（4）Discharging opening and fluid-bed heat exchanger（5）Charging aperture be connected, fluid bed
Heat exchanger（5）Bottom have slag-drip opening（7）, air-introduced machine（10）Pass through pipeline and granulation reactor respectively（3）Bottom, fluid bed are changed
Hot device（5）Bottom is connected, and is granulated reactor（3）Gas outlet, fluid-bed heat exchanger（5）Gas outlet and fluidized-bed reactor（4）
Air inlet is connected, fluidized-bed reactor（4）Gas outlet successively with deduster（8）, waste heat boiler（9）, chimney（11）It is connected.
2. utilization blast furnace slag according to claim 1 fixes carbon dioxide and reclaims the device of sensible heat, it is characterised in that：Institute
State fluidized-bed reactor（4）Bottom and top are respectively arranged with temperature measurement module（6）.
3. utilization blast furnace slag according to claim 2 fixes carbon dioxide and reclaims the device of sensible heat, it is characterised in that：Institute
State fluidized-bed reactor（4）Flue gas analyzer is separately installed with inlet and outlet flue（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720129648.8U CN206454491U (en) | 2017-02-14 | 2017-02-14 | A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720129648.8U CN206454491U (en) | 2017-02-14 | 2017-02-14 | A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat |
Publications (1)
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|---|---|
| CN206454491U true CN206454491U (en) | 2017-09-01 |
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| CN201720129648.8U Withdrawn - After Issue CN206454491U (en) | 2017-02-14 | 2017-02-14 | A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823774A (en) * | 2017-02-14 | 2017-06-13 | 河钢股份有限公司 | A kind of utilization blast furnace slag fixes carbon dioxide and the apparatus and method for reclaiming sensible heat |
| CN108889251A (en) * | 2018-08-20 | 2018-11-27 | 中国华能集团有限公司 | A kind of air flow bed device and method of carbon dioxide humidification mineralising |
| CN110982967A (en) * | 2019-12-25 | 2020-04-10 | 江西理工大学 | Method and device for realizing steel slag quenching and waste heat recovery by using water and carbon dioxide |
| CN111298726A (en) * | 2018-12-11 | 2020-06-19 | 新特能源股份有限公司 | Fluidization system for fluidized reaction |
| CN113074366A (en) * | 2021-04-16 | 2021-07-06 | 太原理工大学 | Coal-fired flue gas CO2 solidification adsorption system |
| CN113148951A (en) * | 2021-03-17 | 2021-07-23 | 天津市碳一有机合成工程设计有限公司 | Method for reducing carbon monoxide synthesis gas by melting heat carrier, carbon dioxide and carbon powder at high temperature |
| CN114543553A (en) * | 2022-03-24 | 2022-05-27 | 重庆科技学院 | Intermittent circulating fluidized bed boiler bottom slag waste heat recovery coupling CO2Fixing device |
-
2017
- 2017-02-14 CN CN201720129648.8U patent/CN206454491U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823774A (en) * | 2017-02-14 | 2017-06-13 | 河钢股份有限公司 | A kind of utilization blast furnace slag fixes carbon dioxide and the apparatus and method for reclaiming sensible heat |
| CN106823774B (en) * | 2017-02-14 | 2023-03-21 | 河钢股份有限公司 | Device and method for fixing carbon dioxide and recovering sensible heat by using blast furnace slag |
| CN108889251A (en) * | 2018-08-20 | 2018-11-27 | 中国华能集团有限公司 | A kind of air flow bed device and method of carbon dioxide humidification mineralising |
| CN108889251B (en) * | 2018-08-20 | 2023-09-29 | 中国华能集团有限公司 | Entrained-flow bed device and method for humidifying and mineralizing carbon dioxide |
| CN111298726A (en) * | 2018-12-11 | 2020-06-19 | 新特能源股份有限公司 | Fluidization system for fluidized reaction |
| CN110982967A (en) * | 2019-12-25 | 2020-04-10 | 江西理工大学 | Method and device for realizing steel slag quenching and waste heat recovery by using water and carbon dioxide |
| CN110982967B (en) * | 2019-12-25 | 2022-02-11 | 江西理工大学 | Method and device for realizing steel slag quenching and waste heat recovery by using water and carbon dioxide |
| CN113148951A (en) * | 2021-03-17 | 2021-07-23 | 天津市碳一有机合成工程设计有限公司 | Method for reducing carbon monoxide synthesis gas by melting heat carrier, carbon dioxide and carbon powder at high temperature |
| CN113148951B (en) * | 2021-03-17 | 2022-07-12 | 天津市碳一有机合成工程设计有限公司 | Method for reducing carbon monoxide synthesis gas by melting heat carrier, carbon dioxide and carbon powder at high temperature |
| CN113074366A (en) * | 2021-04-16 | 2021-07-06 | 太原理工大学 | Coal-fired flue gas CO2 solidification adsorption system |
| CN114543553A (en) * | 2022-03-24 | 2022-05-27 | 重庆科技学院 | Intermittent circulating fluidized bed boiler bottom slag waste heat recovery coupling CO2Fixing device |
| CN114543553B (en) * | 2022-03-24 | 2023-06-30 | 重庆科技学院 | Intermittent circulating fluidized bed boiler bottom slag waste heat recovery coupling CO 2 Fixing device |
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