CN104048500A - Kiln head waste heat generating system of dry method rotary kiln device - Google Patents
Kiln head waste heat generating system of dry method rotary kiln device Download PDFInfo
- Publication number
- CN104048500A CN104048500A CN201410298537.0A CN201410298537A CN104048500A CN 104048500 A CN104048500 A CN 104048500A CN 201410298537 A CN201410298537 A CN 201410298537A CN 104048500 A CN104048500 A CN 104048500A
- Authority
- CN
- China
- Prior art keywords
- kiln
- boiler
- channel
- dry
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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 invention relates to a kiln head waste heat generating system of a dry method rotary kiln device. The kiln head waste heat generating system comprises the dry method rotary kiln device. A kiln head of the dry method rotary kiln device is provided with a high-temperature channel, a medium-temperature channel and a bypass channel. The inlet of the high-temperature channel, the inlet of the medium-temperature channel and the inlet of the bypass channel are provided with valves. The high-temperature channel and the medium-temperature channel are communicated with a high-temperature channel and a low-temperature channel of a grate cooler respectively. The kiln head and the kiln tail of the dry method rotary kiln device are provided with an AQC boiler and an SP boiler respectively. The AQC boiler and the SP boiler are connected with a generating device. The generating device comprises a generator, a turbine, a medium-pressure steam header, a condenser and an oxygen remover, wherein the turbine, the medium-pressure steam header, the condenser and the oxygen remover are connected with the generator. The kiln head waste heat generating system has the advantages that the time for starting the waste heat generating device is short, when the temperature in a rotary kiln or the rotary kiln comes into accidents, the operation state of the waste heat generating device can be prolonged, the number of starting and stopping times of the turbine is reduced, the safety of the device is guaranteed, and the operation efficiency of the waste heat generating unit is improved.
Description
Technical field
The present invention relates to a kind of dry-process rotory kiln equipment kiln hood afterheat generating system.
Background technology
Dry-process rotory kiln equipment is the necessaries of calcination of cement clinker, and rotary kiln, in the process of calcination of cement clinker, has part of waste heat to spill in air, serious waste thermal source.Along with the development of technology, utilize the device of rotary kiln cogeneration more and more ripe, but the time that the startup of generating equipment in the prior art needs is oversize, and break down while causing that rotary kiln waste heat supply temperature declines and have to close generating equipment running into rotary kiln, in addition, the startup of the steam turbine in generating equipment and stop all having number of times restriction, few service life that stops once can extend steam turbine.
Summary of the invention
The object of this invention is to provide a kind of dry-process rotory kiln equipment kiln hood afterheat generating system, to overcome prior art above shortcomings.
The object of the invention is to be achieved through the following technical solutions:
A kind of dry-process rotory kiln equipment kiln hood afterheat generating system, comprise dry-process rotory kiln equipment, the kiln hood of described dry-process rotory kiln equipment is provided with high temperature channel, middle temperature passage and bypass channel, the entrance of described high temperature channel, middle temperature passage and bypass channel is equipped with valve, and described high temperature channel and middle temperature passage communicate with high temperature channel and the low temperature path of grate-cooler respectively; Described dry-process rotory kiln equipment kiln hood and kiln tail are respectively equipped with AQC boiler and SP boiler; Described AQC boiler and SP boiler are all connected with generating equipment, described generating equipment comprises generator and the steam turbine being connected with generator, middle pressure gas-distributing cylinder, condenser and deoxygenation machine, described steam turbine is connected with condenser and middle pressure gas-distributing cylinder, and described condenser connects the water inlet of oxygen-eliminating device; Between the evaporimeter of the delivery port of described oxygen-eliminating device and AQC boiler, SP boiler and superheater, be provided with pipeline one, between the evaporimeter of described AQC boiler, SP boiler and superheater and middle pressure gas-distributing cylinder, be provided with pipeline two.
Further, described bypass channel is connected with electric dust arrester installation, and described AQC Boiler Furnace tail and SP Boiler Furnace tail are all connected with electric dust arrester installation by pipeline.
Further, described condenser is connected with cooling tower.
Further, on the passage that the burner of described AQC Boiler Furnace tail and SP boiler is connected with stove tail, be equipped with valve.
Beneficial effect of the present invention is: the time that starts described device for generating power by waste heat is shorter, when rotary kiln temperature reduces or rotary kiln can extend the equipment operation state of cogeneration while there is accident, reduce the start-stop time of steam turbine, when ensureing device security, improve the running efficiency of cogeneration unit.
Brief description of the drawings
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the structural representation of the dry-process rotory kiln equipment kiln hood afterheat generating system described in the embodiment of the present invention.
In figure:
1, dry-process rotory kiln equipment; 2, high temperature channel; 3, middle temperature passage; 4, bypass channel; 5, AQC boiler; 6, SP boiler; 7, generator; 8, steam turbine; 9, middle pressure gas-distributing cylinder; 10, condenser; 11, oxygen-eliminating device; 12, pipeline one; 13, pipeline two; 14, electric dust arrester installation; 15, cooling tower.
Detailed description of the invention
As shown in Figure 1, dry-process rotory kiln equipment kiln hood afterheat generating system described in the embodiment of the present invention, comprise dry-process rotory kiln equipment 1, the kiln hood of described dry-process rotory kiln equipment 1 is provided with high temperature channel 2, middle temperature passage 3 and bypass channel 4, the entrance of described high temperature channel 2, middle temperature passage 3 and bypass channel 4 is equipped with valve, and described high temperature channel 2 and middle temperature passage 3 communicate with high temperature channel and the low temperature path of grate-cooler respectively; Described dry-process rotory kiln equipment 1 kiln hood and kiln tail are respectively equipped with AQC boiler 5 and SP boiler 6; Described AQC boiler 5 and SP boiler 6 are all connected with generating equipment, described generating equipment comprises generator 7 and the steam turbine 8 being connected with generator 7, middle pressure gas-distributing cylinder 9, condenser 10 and deoxygenation machine 11, described steam turbine 8 is connected with condenser 10 and middle pressure gas-distributing cylinder 9, and described condenser 10 connects the water inlet of deoxygenation machine 11; Between the evaporimeter of the delivery port of described oxygen-eliminating device 11 and AQC boiler 5, SP boiler 6 and superheater, be provided with pipeline 1, between the evaporimeter of described AQC boiler 5, SP boiler 6 and superheater and middle pressure gas-distributing cylinder 9, be provided with pipeline 2 13.
Described bypass channel 4 is connected with electric dust arrester installation 14, and described AQC boiler 5 stove tails and SP boiler 6 stove tails are all connected with electric dust arrester installation 14 by pipeline.Described condenser 10 is connected with cooling tower 15.On the passage that the burner of described AQC boiler 5 stove tails and SP boiler 6 is connected with stove tail, be equipped with valve.
When concrete use, feedwater (is removed and is transported to the oxygen in water in AQC boiler and SP boiler through oxygen-eliminating device 11 after oxygen-eliminating device 11 deoxygenations, in order to avoid boiler is produced to corrosion) be transported to respectively in evaporimeter in AQC boiler and SP boiler and superheater and heat by pipeline 1, the steam forming after heating is all transported to middle pressure gas-distributing cylinder 9 by pipeline 2 13, and then generates electricity through steam turbine 8 and generator 7 respectively.
As shown in Figure 1, in the time that dry-process rotory kiln equipment 1 occurs only expecting phenomenon, temperature of kiln head (referring to AQC boiler wind temperature) declines, and kiln end temperature (referring to SP boiler wind temperature) temperature goes up.When accident can not solve rapidly, temperature of kiln head can not meet the service requirement of AQC boiler.The low steam quality that makes of temperature of kiln head declines, thereby causes cogeneration compressor emergency shutdown.After dry-process rotory kiln is only expected, observation temperature of kiln head changes, find to close rapidly the inlet valve of AQC boiler high temperature passage 2 when the entrance wind temperature of high temperature channel 2 has downward trend and open the inlet valve to 50% of kiln hood bypass channel 4, the inlet valve of middle temperature passage 3 closes to 40%.When the entrance wind temperature of middle temperature passage 3 is low to moderate 150 degree left and right, the inlet valve of standard-sized sheet kiln hood bypass channel 4, the inlet valve complete shut-down of middle temperature passage 3, can reduce the decrease speed of AQC boiler 5 wind temperatures like this.After rotary kiln starts to feed intake, when temperature of kiln head rises to boiler operatiopn requirement, slowly open the inlet valve to 50% of the high temperature channel 2 of AQC boiler 1, temperature of kiln head exceedes boiler operatiopn requirement 40 while spending, all open the inlet valve of boiler high temperature passage 2 and the inlet valve of middle temperature passage 3, now accident condition is removed.
When the kiln condition of rotary kiln is bad, kiln hood EGT declines, and AQC boiler 5 intake air temperature are on the low side.Can open valve to the 30% raising temperature of kiln hood bypass channel 4, valve opening can fluctuate 15% up and down according to the tight degree of device shutdown simultaneously.
In the time that rotary kiln spot check is shut down (rotary kiln is shorter downtime); only after material, close rapidly the inlet valve of high temperature channel 2 inlet valves and middle temperature passage 3; keep temperature; delay downtime; the interior temperature of stove that delays AQC boiler 5 and SP boiler 6 underspeeds, and in the time opening stove, can reduce and open the stove time.When furnace lifting, after rotary kiln feeds intake, the wind temperature of high temperature channel 2 is slowly opened high temperature channel 2 inlet valves during higher than temperature in AQC boiler 5 again AQC boiler 5 is carried out to furnace lifting.The wind temperature of SP boiler 6 after rotary kiln igniting carries out furnace lifting during higher than boiler internal temperature.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection scope of the present invention.
Claims (4)
1. a dry-process rotory kiln equipment kiln hood afterheat generating system, comprise dry-process rotory kiln equipment (1), it is characterized in that: the kiln hood of described dry-process rotory kiln equipment (1) is provided with high temperature channel (2), middle temperature passage (3) and bypass channel (4), the entrance of described high temperature channel (2), middle temperature passage (3) and bypass channel (4) is equipped with valve, and described high temperature channel (2) and middle temperature passage (3) communicate with high temperature channel and the low temperature path of grate-cooler respectively; Described dry-process rotory kiln equipment (1) kiln hood and kiln tail are respectively equipped with AQC boiler (5) and SP boiler (6); Described AQC boiler (5) and SP boiler (6) are all connected with generating equipment, steam turbine (8), middle pressure gas-distributing cylinder (9), condenser (10) and oxygen-eliminating device (11) that described generating equipment comprises generator (7) and is connected with generator (7), described steam turbine (8) is connected with condenser (10) and middle pressure gas-distributing cylinder (9), and described condenser (10) connects the water inlet of oxygen-eliminating device (11); Between the evaporimeter of the delivery port of described oxygen-eliminating device (11) and AQC boiler (5), SP boiler (6) and superheater, be provided with pipeline one (12), between the evaporimeter of described AQC boiler (5), SP boiler (6) and superheater and middle pressure gas-distributing cylinder (9), be provided with pipeline two (13).
2. dry-process rotory kiln equipment kiln hood afterheat generating system according to claim 1, it is characterized in that: described bypass channel (4) is connected with electric dust arrester installation (14), described AQC boiler (5) stove tail and SP boiler (6) stove tail are all connected with electric dust arrester installation (14) by passage.
3. dry-process rotory kiln equipment kiln hood afterheat generating system according to claim 2, is characterized in that: described condenser (10) is connected with cooling tower (15).
4. dry-process rotory kiln equipment kiln hood afterheat generating system according to claim 3, is characterized in that: on the passage that the burner of described AQC boiler (5) stove tail and SP boiler (6) is connected with stove tail, be equipped with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410298537.0A CN104048500A (en) | 2014-06-28 | 2014-06-28 | Kiln head waste heat generating system of dry method rotary kiln device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410298537.0A CN104048500A (en) | 2014-06-28 | 2014-06-28 | Kiln head waste heat generating system of dry method rotary kiln device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104048500A true CN104048500A (en) | 2014-09-17 |
Family
ID=51501670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410298537.0A Pending CN104048500A (en) | 2014-06-28 | 2014-06-28 | Kiln head waste heat generating system of dry method rotary kiln device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104048500A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135896A (en) * | 2015-08-17 | 2015-12-09 | 中能世华(北京)节能科技有限公司 | Waste heat power generation system of cement kiln head cooling machine |
| CN111747667A (en) * | 2019-03-29 | 2020-10-09 | 川崎重工业株式会社 | Waste heat recovery system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09137704A (en) * | 1995-11-16 | 1997-05-27 | Mitsui Eng & Shipbuild Co Ltd | Steam turbine power generating installation |
| CN1601214A (en) * | 2004-09-30 | 2005-03-30 | 中信重型机械公司 | Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process |
| CN1673662A (en) * | 2005-04-21 | 2005-09-28 | 唐金泉 | Pure middle and low temperature cogeneration system for cement kiln |
| CN101013002A (en) * | 2006-12-31 | 2007-08-08 | 北京市琉璃河水泥有限公司 | Residual heat generating system used for new type nonaqueous cement production line |
| CN201858899U (en) * | 2010-09-21 | 2011-06-08 | 广东开能环保能源有限公司 | Improved power generation system for cement industry |
| CN201876151U (en) * | 2010-10-20 | 2011-06-22 | 成都四通新能源技术有限公司 | Control system of smoke heat energy stepped utilization system |
| CN102393148A (en) * | 2011-11-08 | 2012-03-28 | 大连易世达新能源发展股份有限公司 | Cement kiln tail by-pass waste heat power generation device |
| CN103471400A (en) * | 2012-06-06 | 2013-12-25 | 江西四方能源有限公司 | Set of rotary kiln industrial waste heat power generation integrated system and waste heat flue gas treatment method |
-
2014
- 2014-06-28 CN CN201410298537.0A patent/CN104048500A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09137704A (en) * | 1995-11-16 | 1997-05-27 | Mitsui Eng & Shipbuild Co Ltd | Steam turbine power generating installation |
| CN1601214A (en) * | 2004-09-30 | 2005-03-30 | 中信重型机械公司 | Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process |
| CN1673662A (en) * | 2005-04-21 | 2005-09-28 | 唐金泉 | Pure middle and low temperature cogeneration system for cement kiln |
| CN101013002A (en) * | 2006-12-31 | 2007-08-08 | 北京市琉璃河水泥有限公司 | Residual heat generating system used for new type nonaqueous cement production line |
| CN201858899U (en) * | 2010-09-21 | 2011-06-08 | 广东开能环保能源有限公司 | Improved power generation system for cement industry |
| CN201876151U (en) * | 2010-10-20 | 2011-06-22 | 成都四通新能源技术有限公司 | Control system of smoke heat energy stepped utilization system |
| CN102393148A (en) * | 2011-11-08 | 2012-03-28 | 大连易世达新能源发展股份有限公司 | Cement kiln tail by-pass waste heat power generation device |
| CN103471400A (en) * | 2012-06-06 | 2013-12-25 | 江西四方能源有限公司 | Set of rotary kiln industrial waste heat power generation integrated system and waste heat flue gas treatment method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135896A (en) * | 2015-08-17 | 2015-12-09 | 中能世华(北京)节能科技有限公司 | Waste heat power generation system of cement kiln head cooling machine |
| CN111747667A (en) * | 2019-03-29 | 2020-10-09 | 川崎重工业株式会社 | Waste heat recovery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104963735B (en) | Utilize the method and device of condenser cooling water backwater waste heat gaseous fuel | |
| CN102393148B (en) | Cement kiln tail by-pass waste heat power generation device | |
| CN103234364B (en) | Device with griddle and process for generating power by efficiently recycling sinter waste heat | |
| CN203848273U (en) | Biomass burner | |
| CN106867549B (en) | Method for realizing maintenance of dry quenching boiler without stopping production | |
| CN104048500A (en) | Kiln head waste heat generating system of dry method rotary kiln device | |
| CN104949534A (en) | Cement kiln head waste heat power generation method and system | |
| CN102305394A (en) | Coking furnace flue-gas waste-heat boiler | |
| CN203964690U (en) | A kind of flue gas heat recovery device of bell type heating furnace | |
| CN203549758U (en) | Carbon calciner waste heat boiler | |
| CN103480264B (en) | Flue gas system and control method thereof | |
| CN103438474B (en) | The weary gas of boiler milling system part participates in pulverized coal carried by hot air utilization system | |
| CN104976628A (en) | Catalytic combustion device | |
| CN104612832A (en) | United technique for driving MVR system by gas turbine | |
| CN202350550U (en) | Waste heat power generating device with by-pass at tail of cement kiln | |
| CN104132554A (en) | Energy saving device for cyclic utilization of smoke of open smoke hood type silicon submerged arc furnace | |
| CN201706902U (en) | Waste heat single-pressure recovery power generating system of dry method cement production line | |
| CN204691830U (en) | A kind of turbine by-pass control gear | |
| CN204438078U (en) | A kind of jockey of Steam Heating start up system | |
| CN102607286A (en) | Molten salt furnace afterheat power-generation and combustion comprehensive utilizing system | |
| CN205482289U (en) | Raw coal steam drying system of power plant suitable for operate in a variable working condition | |
| CN107941031B (en) | Compact process arrangement method for high-temperature flue gas system of heat recovery coke oven | |
| CN102654066B (en) | The power generation system that a kind of fired power generating unit is coupled with air turbine | |
| CN104848674A (en) | Coal mine low concentration gas oxidation high temperature hot air and coal slime preparing and drying technology | |
| CN203856601U (en) | Power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140917 |
|
| RJ01 | Rejection of invention patent application after publication |