CN203657508U - Smoke waste heat utilization system of rotary kiln - Google Patents
Smoke waste heat utilization system of rotary kiln Download PDFInfo
- Publication number
- CN203657508U CN203657508U CN201320768530.1U CN201320768530U CN203657508U CN 203657508 U CN203657508 U CN 203657508U CN 201320768530 U CN201320768530 U CN 201320768530U CN 203657508 U CN203657508 U CN 203657508U
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- CN
- China
- Prior art keywords
- waste heat
- rotary kiln
- utilization system
- heat boiler
- outlet
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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
The utility model discloses a smoke waste heat utilization system of a rotary kiln. The smoke waste heat utilization system of the rotary kiln comprises the rotary kiln, a flue, a settling chamber, a dust remover, an induced draft fan, a chimney and a waste heat boiler. A smoke outlet of the rotary kiln is connected with the settling chamber through the flue, an outlet of the settling chamber is connected with the waste heat boiler and the dust remover in sequence through pipelines, and an outlet of the dust remover is connected with the chimney through the induced draft fan. The smoke waste heat utilization system has application space in processes of many metallurgy chemical industries, smoke generated by the rotary kiln enters the waste heat boiler for heat energy recycling, steam is generated to generate electricity, the energy utilization rate can be improved, and environmental pollution can be reduced.
Description
Technical field
The utility model relates to rotary kiln smoke waste heat utilization system.
Background technology
In China's present stage metallurgy, chemical industry, rotary kiln has a very wide range of applications.Steel plant carry out poor iron ore magnetic roasting and chromium, josephinite oxidizing roasting with rotary kiln; Refractory factory is used for roasting high-aluminium vanadine ore deposit and aluminium manufacturer's roasting grog, aluminium hydroxide.In ferronickel industry, rotary kiln drying prereduction-ore-smelting electric furnace reduction melting (RKEF) is the classical technique of processing nickel laterite, is also the recommendation technique of national industry structural adjustment.But due to the feature of high energy consumption (especially electricity needs is high), high pollution, these industries are being born huge pressure at antifouling reduction of discharging, the aspect such as energy-saving and cost-reducing.
In production link, rotary kiln is produced and can be produced a large amount of high-temp waste gas, and the technique that many factories adopt is by accessing large-area radiator, makes flue-gas temperature be reduced to the temperature that dust-precipitator can bear, and finally directly discharges.Only have minority residual heat resources for combustion air, pre-heat mixture or utilize waste-heat recovery device to produce steam, heat recovery efficiency is on the whole not high.
For metallurgy industry enterprise, afterheat generating system investment is little, and instant effect, can significantly reduce energy consumption, improves Business Economic Benefit simultaneously, has very important meaning for the energy-saving and emission-reduction of China and the development of metallurgy industry.The purpose of this utility model is just at a set of rotary kiln smoke waste heat utilization system of research and development.
Summary of the invention
The purpose of this utility model is to provide rotary kiln smoke waste heat utilization system.
The utility model is achieved through the following technical solutions:
Rotary kiln smoke waste heat utilization system, comprise rotary kiln, flue, expansion chamber, deduster, air-introduced machine, chimney and waste heat boiler, wherein the exhanst gas outlet of rotary kiln is connected with expansion chamber by flue, the outlet of expansion chamber connects waste heat boiler and deduster successively by pipeline, and the outlet of deduster is connected with chimney by air-introduced machine.
Further, also comprise cogeneration steam turbine, the steam (vapor) outlet of described waste heat boiler is connected with cogeneration steam turbine, generates electricity.
Described waste heat boiler adopts dual pressure system, and low pressure heat exchanger and high pressure heat exchanger are installed in waste heat boiler.
The utility model waste heat boiler adopts dual pressure system, low pressure heat exchanger and high pressure heat exchanger are installed in waste heat boiler, cold water after oxygen-eliminating device deoxygenation is sent to low pressure heat exchanger and high pressure heat exchanger, after entering waste heat boiler, the high-temperature flue gas that rotary kiln produces carries out heat exchange with low pressure heat exchanger and high pressure heat exchanger, after high pressure heat exchanger heat exchange, produce high steam, in the time promoting the use of, can be equipped with afterheat generating system, high steam is pooled to the main steam line of afterheat generating system, deliver to steam turbine power generation, steam after having generated electricity is delivered to oxygen-eliminating device again to low pressure heat exchanger and high pressure heat exchanger water supply after being condensed into cold water by condenser, the low-pressure steam producing after the heat exchange of low pressure heat exchanger or hot water are used for getting back to oxygen-eliminating device and carry out deoxygenation operation, pass through afterheat generating system, the low heat value flue gas that ore-smelting electric furnace produces reduces through heat-exchange temperature, can reclaim heat, can reduce again flue-gas temperature, extend the service life of sack cleaner.
The utility model has the space of application in a lot of metallurgical and chemical industry technique, and the flue gas that rotary kiln produces enters waste heat boiler and reclaims heat energy, produces steam-electric power, can improve energy utilization rate, reduce environmental pollution.
Accompanying drawing explanation
Fig. 1 is structural formula schematic diagram of the present utility model;
In figure: 1-rotary kiln, 2-cogeneration steam turbine, 3-flue, 4-expansion chamber, 5-waste heat boiler, 6-deduster, 7-air-introduced machine, 8-chimney.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Rotary kiln smoke waste heat utilization system as shown in Figure 1, comprise rotary kiln 1, flue 3, expansion chamber 4, waste heat boiler 5, deduster 6, air-introduced machine 7, chimney 8, wherein the exhanst gas outlet of rotary kiln 1 connects expansion chamber 4 by flue 3, the exhanst gas outlet of expansion chamber 4 connects waste heat boiler 5 and deduster 6 successively by pipeline, and the outlet of deduster 6 is connected with chimney 8 by air-introduced machine 7.
Waste heat boiler adopts dual pressure system, and low pressure heat exchanger and high pressure heat exchanger are installed in waste heat boiler, also comprises cogeneration steam turbine 2, and the steam (vapor) outlet of waste heat boiler 5 is connected with cogeneration steam turbine 2.
Claims (3)
1. a rotary kiln smoke waste heat utilization system, it is characterized in that, comprise rotary kiln (1), flue (3), expansion chamber (4), waste heat boiler (5), deduster (6), air-introduced machine (7), chimney (8), wherein the exhanst gas outlet of rotary kiln (1) connects expansion chamber (4) by flue (3), the exhanst gas outlet of expansion chamber (4) connects waste heat boiler (5) and deduster (6) successively by pipeline, and the outlet of deduster (6) is connected with chimney (8) by air-introduced machine (7).
2. rotary kiln smoke waste heat utilization system according to claim 1, is characterized in that, also comprises cogeneration steam turbine (2), and the steam (vapor) outlet of described waste heat boiler (5) is connected with cogeneration steam turbine (2).
3. rotary kiln smoke waste heat utilization system according to claim 1 and 2, is characterized in that, described waste heat boiler (5) adopts dual pressure system, and waste heat boiler is provided with low pressure heat exchanger and high pressure heat exchanger in (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768530.1U CN203657508U (en) | 2013-11-29 | 2013-11-29 | Smoke waste heat utilization system of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768530.1U CN203657508U (en) | 2013-11-29 | 2013-11-29 | Smoke waste heat utilization system of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657508U true CN203657508U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320768530.1U Expired - Fee Related CN203657508U (en) | 2013-11-29 | 2013-11-29 | Smoke waste heat utilization system of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836997A (en) * | 2013-11-29 | 2014-06-04 | 偏关县晋电化工有限责任公司 | Flue gas waste heat utilization system of rotary kiln |
| CN105087942A (en) * | 2015-09-11 | 2015-11-25 | 河北宏贸环保科技有限公司 | Industrial solid waste treatment method and system |
-
2013
- 2013-11-29 CN CN201320768530.1U patent/CN203657508U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836997A (en) * | 2013-11-29 | 2014-06-04 | 偏关县晋电化工有限责任公司 | Flue gas waste heat utilization system of rotary kiln |
| CN105087942A (en) * | 2015-09-11 | 2015-11-25 | 河北宏贸环保科技有限公司 | Industrial solid waste treatment method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |