CN202902893U - Smoke waste heat boiler system of rotary hearth furnace - Google Patents
Smoke waste heat boiler system of rotary hearth furnace Download PDFInfo
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- CN202902893U CN202902893U CN2012205741815U CN201220574181U CN202902893U CN 202902893 U CN202902893 U CN 202902893U CN 2012205741815 U CN2012205741815 U CN 2012205741815U CN 201220574181 U CN201220574181 U CN 201220574181U CN 202902893 U CN202902893 U CN 202902893U
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- waste heat
- heat boiler
- high temperature
- economizer
- hearth furnace
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to the technology of recycling of smoke waste heat and provides a smoke waste heat boiler system of a rotary hearth furnace. The smoke waste heat boiler system comprises a high-temperature section waste heat boiler, a low-temperature section waste heat boiler and a dust removal system. The high-temperature section waste heat boiler comprises a steam drum, a water cooling wall and a high-temperature superheater, the steam drum is connected with the water cooling wall, a dust collection hopper is arranged on the lower portion of each of the water cooling wall and the high-temperature superheater, more than two groups of snakelike pipes connected together through pipelines are arranged in the high-temperature superheater at intervals, the low-temperature section waste heat boiler comprises more than two groups of mutually parallelly arranged coal economizers, a smoke outlet of the high-temperature section waste heat boiler is divided into multiple branches to be communicated with smoke inlets of the coal economizers, valves are arranged between the smoke outlet of the high-temperature section waste heat boiler and the smoke inlets of the coal economizers, and the smoke outlets of the coal economizers are respectively communicated with an air inlet of the dust removal system. The smoke waste heat boiler system of the rotary hearth furnace is simple in structure and capable of realizing online switching of the low-temperature section waste heat boiler and guaranteeing continuous normal running.
Description
Technical field
The utility model relates to the flue gas heat recovery technology, particularly a kind of rotary hearth furnace smoke and waste steam boiler system.
Background technology
The application of rotary hearth furnace flue gas waste heat recovery boiler system and composition have been known, existing rotary hearth furnace smoke and waste steam boiler system mainly is comprised of high temperature section waste heat boiler and low-temperature zone waste heat boiler and dust pelletizing system, the exhanst gas outlet of described high temperature section waste heat boiler links to each other with the gas approach of low-temperature zone waste heat boiler, the exhanst gas outlet of described low-temperature zone waste heat boiler links to each other with the smoke inlet of dust pelletizing system, described high temperature section waste heat boiler comprises drum, water-cooling wall and high temperature superheater, described drum is connected with water-cooling wall by supply channel, water-cooling wall is by being connected with high temperature superheater, the bottom of described water-cooling wall and high temperature superheater is respectively equipped with flue-dust retainer, usually in order to reduce the class gas velocity, the currency of prolong smoke, make as far as possible sedimentation of flue dust, described water-cooling wall generally is comprised of many groups water-cooling wall chamber, be interval with many group coiled pipes in the described high temperature superheater, each is organized between the coiled pipe and links together by pipeline successively, described low-temperature zone waste heat boiler mainly is comprised of economizer, be provided with many group coiled pipes in the described economizer, the economizer bottom is provided with ash bucket.During work, successively through water-cooling wall, high temperature superheater and economizer are progressively emitted heat to high-temperature flue gas by gas approach, and feedwater is progressively reclaimed heat through economizer, drum, water-cooling wall and superheater successively by the feedwater piping import.Above-mentioned existing rotary hearth furnace flue gas and afterheat boiler system can effectively reclaim fume afterheat and the zinc-containing dust of rotary hearth furnace, but, above-mentioned rotary hearth furnace flue gas and afterheat boiler system are only established the waste heat boiler of a low-temperature zone, when the waste heat boiler generation dust adhesion of low-temperature zone needs artificial maintenance and labor cleaning's flue dust, can't realize online switching, must stop to produce, can not realize the continuous operation of boiler, the normal production of rotary hearth furnace is influenced, in the production process, the discharging that flue gas can not continuous non-polluting.
Summary of the invention
For the problems referred to above, the utility model proposes a kind of simple in structure, can realize that the low-temperature zone waste heat boiler is online and switch, thereby guarantee the continuously rotary hearth furnace smoke and waste steam boiler system of normal operation of boiler.
For solving this technical problem, the utility model is taked following scheme: rotary hearth furnace smoke and waste steam boiler system, comprise that high temperature section waste heat boiler and low-temperature zone waste heat boiler and dust pelletizing system form, described high temperature section waste heat boiler comprises drum, water-cooling wall and high temperature superheater, described drum is connected with water-cooling wall by supply channel, the bottom of described water-cooling wall and high temperature superheater is respectively equipped with flue-dust retainer, be interval with two groups of above coiled pipes in the described high temperature superheater, each is organized between the coiled pipe and links together by pipeline successively, described low-temperature zone waste heat boiler is comprised of economizer more than two groups, each is organized economizer and is arranged in parallel respectively, the exhanst gas outlet of described high temperature section waste heat boiler minute multichannel is connected with the gas approach of each group economizer respectively, be provided with valve between the gas approach of the exhanst gas outlet of described high temperature section waste heat boiler and each group economizer, the described exhanst gas outlet of respectively organizing economizer is connected with the air inlet of dust pelletizing system respectively.
Further improvedly be: the quantity of described economizer is two groups or three groups.
Further improvedly be: respectively organizing in the described high temperature heater (HTH) is respectively equipped with attemperator between the coiled pipe.
Further improvedly be: the madial wall of described water-cooling wall is provided with the zirconium matter mould material layer that prevents that zinc-containing dust from adhering to.
Further improvedly be: also be provided with on the described water-cooling wall be used to the ash disposal rapping apparatus of removing the dust that adheres on the water-cooling wall.
Further improvedly be: described high temperature superheater is provided be used to the ash disposal rapping apparatus of removing the dust that adheres on the high temperature heater (HTH).
Further improvedly be: the described bottom of respectively organizing economizer is respectively equipped with ash bucket, and each top of organizing economizer is respectively equipped with the ash disposal rapping apparatus.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: the novel rotary hearth furnace smoke and waste steam boiler of basis system, described low-temperature zone waste heat boiler is comprised of economizer more than two groups, each is organized economizer and is arranged in parallel respectively, the exhanst gas outlet of described high temperature section waste heat boiler minute multichannel is connected with the gas approach of each group economizer respectively, be provided with valve between the gas approach of the exhanst gas outlet of described high temperature section waste heat boiler and each group economizer, the described exhanst gas outlet of respectively organizing economizer is connected with the air inlet of dust pelletizing system respectively, when the adhesion of economizer generation dust needs artificial maintenance and labor cleaning's flue dust, can realize the online switching between many group economizers, satisfy the continuous need of production of boiler, need not to stop to produce, when one group of economizer maintenance, several groups of economizers still can move in addition, make the normal production of rotary hearth furnace unaffected, realize the continuous non-polluting discharging of flue gas in the production process.
Description of drawings
Fig. 1 is the utility model embodiment perspective view.
The specific embodiment
Now with specific embodiment the utility model is further specified by reference to the accompanying drawings.
With reference to figure 1, present embodiment discloses a kind of rotary hearth furnace smoke and waste steam boiler system, comprise that high temperature section waste heat boiler and low-temperature zone waste heat boiler and dust pelletizing system form, described high temperature section waste heat boiler comprises drum 1, water-cooling wall 2 and high temperature superheater 3, described drum 1 is connected with water-cooling wall 2 by supply channel 11, the bottom of described water-cooling wall 2 and high temperature superheater 3 is respectively equipped with flue-dust retainer 21, the madial wall of described water-cooling wall 2 is provided with zirconium matter mould material layer (not shown), the thermal-flame that zirconium matter mould material layer can avoid CO burning to produce directly blows water-cooling wall, and can effectively prevent what zinc-containing dust from adhering to, also be provided with on the described water-cooling wall 2 be used to the ash disposal rapping apparatus (not shown) of removing the dust that adheres on the water-cooling wall, described ash disposal rapping apparatus is to utilize driven by motor spring hammering device to hit the pipe row of the water-cooling wall that shakes, thereby further removes a small amount of dust that accumulates on the water-cooling wall; Be interval with five groups of coiled pipes 31 in the described high temperature superheater 3, each is organized between the coiled pipe 31 and links together by pipeline 32 successively, described high temperature superheater 3 is provided be used to the ash disposal rapping apparatus of removing the dust that adheres on the high temperature heater (HTH), described low-temperature zone waste heat boiler is comprised of three groups of economizers 4, each is organized economizer 4 and is arranged in parallel respectively, the exhanst gas outlet of described high temperature section waste heat boiler was connected with the gas approach 41 of each group economizer 4 respectively in 33 minutes three the tunnel, be provided with valve between the gas approach 41 of the exhanst gas outlet 33 of described high temperature section waste heat boiler and each group economizer, the described exhanst gas outlet 42 of respectively organizing economizer 4 is connected with the air inlet of dust pelletizing system 5 respectively, the described bottom of respectively organizing economizer 4 is respectively equipped with ash bucket 43, and each top of organizing economizer 4 is respectively equipped with the ash disposal rapping apparatus.
Respectively organizing in the described high temperature heater (HTH) 3 is respectively equipped with attemperator 6 between the coiled pipe 31, attemperator 6 can be controlled the superheated steam outlet temperature.
The novel rotary hearth furnace smoke and waste steam boiler of basis system, described low-temperature zone waste heat boiler is comprised of economizer more than two groups, each is organized economizer and is arranged in parallel respectively, the exhanst gas outlet of described high temperature section waste heat boiler minute multichannel is connected with the gas approach of each group economizer respectively, be provided with valve between the gas approach of the exhanst gas outlet of described high temperature section waste heat boiler and each group economizer, the described exhanst gas outlet of respectively organizing economizer is connected with the air inlet of dust pelletizing system respectively, when the adhesion of economizer generation dust needs artificial maintenance and labor cleaning's flue dust, can realize the online switching between many group economizers, satisfy the continuous need of production of boiler, need not to stop to produce, when one group of economizer maintenance, several groups of economizers still can move in addition, make the normal production of rotary hearth furnace unaffected, realize the continuous non-polluting discharging of flue gas in the production process.
The above record, only for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do all belong to the claim that this creation is advocated, and are not limited to those disclosed embodiments.
Claims (7)
1. rotary hearth furnace smoke and waste steam boiler system, comprise that high temperature section waste heat boiler and low-temperature zone waste heat boiler and dust pelletizing system form, described high temperature section waste heat boiler comprises drum, water-cooling wall and high temperature superheater, described drum is connected with water-cooling wall by supply channel, the bottom of described water-cooling wall and high temperature superheater is respectively equipped with flue-dust retainer, be interval with the coiled pipe that links together by pipeline successively more than two groups in the described high temperature superheater, it is characterized in that: described low-temperature zone waste heat boiler is comprised of economizer more than two groups, each is organized economizer and is arranged in parallel respectively, the exhanst gas outlet of described high temperature section waste heat boiler minute multichannel is connected with the gas approach of each group economizer respectively, be provided with valve between the gas approach of the exhanst gas outlet of described high temperature section waste heat boiler and each group economizer, the described exhanst gas outlet of respectively organizing economizer is connected with the air inlet of dust pelletizing system respectively.
2. rotary hearth furnace smoke and waste steam boiler according to claim 1 system, it is characterized in that: the quantity of described economizer is two groups or three groups.
3. rotary hearth furnace smoke and waste steam boiler according to claim 1 and 2 system, it is characterized in that: respectively organizing in the described high temperature heater (HTH) is respectively equipped with attemperator between the coiled pipe.
4. rotary hearth furnace smoke and waste steam boiler according to claim 1 and 2 system, it is characterized in that: the madial wall of described water-cooling wall is provided with the zirconium matter mould material layer that prevents that zinc-containing dust from adhering to.
5. rotary hearth furnace smoke and waste steam boiler according to claim 4 system is characterized in that: also be provided with on the described water-cooling wall be used to the ash disposal rapping apparatus of removing the dust that adheres on the water-cooling wall.
6. rotary hearth furnace smoke and waste steam boiler according to claim 5 system, it is characterized in that: described high temperature superheater is provided be used to the ash disposal rapping apparatus of removing the dust that adheres on the high temperature heater (HTH).
7. rotary hearth furnace smoke and waste steam boiler according to claim 6 system, it is characterized in that: the described bottom of respectively organizing economizer is respectively equipped with ash bucket, and each top of organizing economizer is respectively equipped with the ash disposal rapping apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205741815U CN202902893U (en) | 2012-10-26 | 2012-10-26 | Smoke waste heat boiler system of rotary hearth furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205741815U CN202902893U (en) | 2012-10-26 | 2012-10-26 | Smoke waste heat boiler system of rotary hearth furnace |
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| Publication Number | Publication Date |
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| CN202902893U true CN202902893U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012205741815U Expired - Fee Related CN202902893U (en) | 2012-10-26 | 2012-10-26 | Smoke waste heat boiler system of rotary hearth furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983120A (en) * | 2014-05-23 | 2014-08-13 | 北京首钢国际工程技术有限公司 | Bonding preventing method of smoke system of rotary hearth furnace process for treating metallurgical zinc-bearing dust |
| CN109798511A (en) * | 2017-11-16 | 2019-05-24 | 东光Boiler株式会社 | The waste-heat recovery device of steam boiler |
-
2012
- 2012-10-26 CN CN2012205741815U patent/CN202902893U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983120A (en) * | 2014-05-23 | 2014-08-13 | 北京首钢国际工程技术有限公司 | Bonding preventing method of smoke system of rotary hearth furnace process for treating metallurgical zinc-bearing dust |
| CN103983120B (en) * | 2014-05-23 | 2016-01-06 | 北京首钢国际工程技术有限公司 | A kind of rotary hearth furnace process Metallurgical dust containing zinc technique flue gas system anti-stick method |
| CN109798511A (en) * | 2017-11-16 | 2019-05-24 | 东光Boiler株式会社 | The waste-heat recovery device of steam boiler |
| CN109798511B (en) * | 2017-11-16 | 2020-03-10 | 东光Boiler株式会社 | Waste heat recovery device of steam boiler |
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| 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: 20130424 Termination date: 20161026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |