CN105300117A - Method for conducting heat tracing by recycling kiln stack gas of sleeve lime kiln - Google Patents
Method for conducting heat tracing by recycling kiln stack gas of sleeve lime kiln Download PDFInfo
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- CN105300117A CN105300117A CN201410288179.5A CN201410288179A CN105300117A CN 105300117 A CN105300117 A CN 105300117A CN 201410288179 A CN201410288179 A CN 201410288179A CN 105300117 A CN105300117 A CN 105300117A
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- kiln
- temperature
- sleeve
- recycling
- flue gas
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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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Abstract
The invention relates to industrial kilns, in particular to a method for conducting heat tracing by recycling kiln stack gas of a sleeve lime kiln. The method for conducing heat tracing by recycling the kiln stack gas of the sleeve lime kiln comprises the steps that the proportional distribution of high-temperature smoke in a calcining zone kiln in the sleeve lime kiln is adjusted, the high-temperature smoke flow which is original 33% is increased to be 40%, and the purpose of adjusting the temperature of the kiln stack gas is realized by adjusting the flow of the high-temperature smoke, so that the temperature of the kiln stack gas is increased to 250-300 DEG C; and the smoke is obtained between a main smoke exhaust fan and a smoke three-way valve of a sleeve kiln body, and heat energy is transmitted to all user points after reverse exchange is conducted between the high-temperature smoke and circulating water through a heat pipe exchanger. By the adoption of the method for conducting heat tracing by recycling the kiln stack gas of the sleeve lime kiln, a large amount of energy is saved, safety is guaranteed, and stable production is achieved.
Description
Technical field
The present invention relates to Industrial Stoves, particularly relate to a kind of sleeve lime kiln kiln exit gas recoverying and utilizing method.
Background technology
Sleeve lime kiln technology is after introducing Italian TF technology, and former technological design kiln exit gas amount is 60000Nm
3/ h ~ 80000Nm
3/ h, wherein 33% flue-gas temperature about 800 DEG C, is preheated to 450 DEG C by kiln ontology-driven wind by normal temperature through tubular heat exchanger; 67% flue-gas temperature is the highest about 150 DEG C, maximum temperature about 180 DEG C after mixing with 33% flue gas.Because this partial fume temperature is too low, callable comprehensive utilization value is little, if strengthen flue gas flow, improve flue-gas temperature, the instable technical problem then caused kiln bulk process recyclegas fails again to solve, and therefore this partial fume is set to external discharge in sleeve kiln technique.And gas holder in calcium carbide production equipment and pipe drainage facility need to provide companion heat; Especially in the winter time, these process units, are easy to freeze as without companion's heat when producing, once it is light to freeze, fall product, heavy then cause stopping production or cause work safety accident to occur.
Summary of the invention
The present invention is intended to the described defect solving prior art, provides the recycling of a kind of sleeve lime kiln kiln exit gas to carry out companion's by the use of thermal means.The present invention utilizes the heat of kiln exit gas to carry out companion's heat for needing the equipment of companion's heat, saves mass energy, ensures safety simultaneously, stably produce.
In order to solve the problems of the technologies described above, the present invention is achieved in that companion's by the use of thermal means is carried out in the recycling of a kind of sleeve lime kiln kiln exit gas, it comprises: in adjustment sleeve limekiln, in burning zone kiln, the ratio of high-temperature flue gas distributes, the high-temperature flue gas flow of original 33% is increased to 40%, increase by adjustment the object that high-temperature flue gas flow reaches the temperature of adjustment kiln exit gas, make kiln exit gas temperature be increased to 250 DEG C ~ 300 DEG C; Between sleeve kiln body main smoke discharging blower fan and flue gas triple valve, get this flue gas, adopt heat exchange of heat pipe, by after high-temperature flue gas and the reverse exchange of recirculated water, heat energy is delivered to each user point.
Companion's by the use of thermal means is carried out in described sleeve lime kiln kiln exit gas recycling, and wherein, outlet hot water's temperature of described heat exchange of heat pipe is regulated by adjustment smoke inlet valve opening.。
The present invention increases by adjustment the object that high-temperature flue gas flow reaches the temperature of adjustment kiln exit gas, makes kiln exit gas temperature be increased to 250 DEG C ~ 300 DEG C.Utilized by this off-gas recovery and be cooled to 160 DEG C, according to calculating, for single seat 600TPD single seat sleeve lime kiln, its kiln exit gas reclaims gross energy can reach 1,030,000 kilocalories, is equivalent to the heat that 2 tons of boilers produce.Also solve the technical problem of sleeve kiln main equipment simultaneously.Heating can also be used for further through the flue gas of above-mentioned heat exchange, amount to cost-saved nearly 1,000,000 yuan.
Detailed description of the invention
Companion's by the use of thermal means is carried out in sleeve lime kiln kiln exit gas of the present invention recycling, in a whole set of cylinder limekiln, in burning zone kiln, the ratio of high-temperature flue gas distributes, originally the high-temperature flue gas flow of 33% is increased to 40%, increase by adjustment the object that high-temperature flue gas flow reaches the temperature of adjustment kiln exit gas, make kiln exit gas temperature be increased to 250 DEG C ~ 300 DEG C.
Between sleeve kiln body main smoke discharging blower fan and flue gas triple valve, get high-temperature flue gas, adopt heat exchange of heat pipe, by after high-temperature flue gas and the reverse exchange of recirculated water, heat energy is delivered to each user point.
In conjunction with sleeve kiln body production technology, adopt and regulate smoke inlet valve opening to reach the object controlling hot water temperature.
The present invention can greatly reduce the flue-gas temperature entering sleeve kiln body deduster, can reduce the filter area of kiln body deduster, has saved the purchase cost of equipment.
Claims (2)
1. companion's by the use of thermal means is carried out in the recycling of sleeve lime kiln kiln exit gas, it is characterized in that: it comprises:
In adjustment sleeve limekiln, in burning zone kiln, the ratio of high-temperature flue gas distributes, the high-temperature flue gas flow of original 33% is increased to 40%, increase by adjustment the object that high-temperature flue gas flow reaches the temperature of adjustment kiln exit gas, make kiln exit gas temperature be increased to 250 DEG C ~ 300 DEG C; Between sleeve kiln body main smoke discharging blower fan and flue gas triple valve, get this flue gas, adopt heat exchange of heat pipe, by after high-temperature flue gas and the reverse exchange of recirculated water, heat energy is delivered to each user point.
2. companion's by the use of thermal means is carried out in sleeve lime kiln kiln exit gas according to claim 1 recycling, it is characterized in that, outlet hot water's temperature of described heat exchange of heat pipe is regulated by adjustment smoke inlet valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288179.5A CN105300117A (en) | 2014-06-25 | 2014-06-25 | Method for conducting heat tracing by recycling kiln stack gas of sleeve lime kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288179.5A CN105300117A (en) | 2014-06-25 | 2014-06-25 | Method for conducting heat tracing by recycling kiln stack gas of sleeve lime kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105300117A true CN105300117A (en) | 2016-02-03 |
Family
ID=55197667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410288179.5A Pending CN105300117A (en) | 2014-06-25 | 2014-06-25 | Method for conducting heat tracing by recycling kiln stack gas of sleeve lime kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105300117A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0721391B2 (en) * | 1986-05-12 | 1995-03-08 | 住友金属鉱山株式会社 | Operation method of equipment attached to smelting furnace |
| CN202793039U (en) * | 2012-07-27 | 2013-03-13 | 大连易世达新能源发展股份有限公司 | Intake system for cement kiln by-pass and power generation by fume waste heat |
| CN203534221U (en) * | 2013-09-03 | 2014-04-09 | 湖南金虎再生资源产业集团有限公司 | Metallurgy kiln high-temperature flue gas waste heat recovery system |
| CN203657502U (en) * | 2013-11-25 | 2014-06-18 | 洛阳安拓窑炉环保有限公司 | Exhaust gas efficient utilization system of kiln |
-
2014
- 2014-06-25 CN CN201410288179.5A patent/CN105300117A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0721391B2 (en) * | 1986-05-12 | 1995-03-08 | 住友金属鉱山株式会社 | Operation method of equipment attached to smelting furnace |
| CN202793039U (en) * | 2012-07-27 | 2013-03-13 | 大连易世达新能源发展股份有限公司 | Intake system for cement kiln by-pass and power generation by fume waste heat |
| CN203534221U (en) * | 2013-09-03 | 2014-04-09 | 湖南金虎再生资源产业集团有限公司 | Metallurgy kiln high-temperature flue gas waste heat recovery system |
| CN203657502U (en) * | 2013-11-25 | 2014-06-18 | 洛阳安拓窑炉环保有限公司 | Exhaust gas efficient utilization system of kiln |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
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| RJ01 | Rejection of invention patent application after publication |