CN109931781A - A kind of kiln hood firing system - Google Patents

A kind of kiln hood firing system Download PDF

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Publication number
CN109931781A
CN109931781A CN201910346755.XA CN201910346755A CN109931781A CN 109931781 A CN109931781 A CN 109931781A CN 201910346755 A CN201910346755 A CN 201910346755A CN 109931781 A CN109931781 A CN 109931781A
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China
Prior art keywords
tertiary
temperature
air pipe
transferring medium
heat
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CN201910346755.XA
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Chinese (zh)
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汪宇
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Nanjing Kisen International Engineering Co Ltd
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Nanjing Kisen International Engineering Co Ltd
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Priority to CN201910346755.XA priority Critical patent/CN109931781A/en
Publication of CN109931781A publication Critical patent/CN109931781A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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Abstract

The invention discloses a kind of kiln hood firing systems, including components such as tertiary air channel, heat exchanger, kiln head cover, tertiary-air pipe, grate-cooler, rotary kiln, temperature sensor, type metal expansion joint, burner, tertiary-air pipe, tertiary-air pipe inlet temperature sensor, Centralized Controllers, the tertiary-air pipe upper part of channel is connected with tertiary-air pipe, and lower part is connected with grate-cooler;The heat exchanger is mounted on the inside in tertiary-air pipe channel, heat transferring medium entrance is for accessing external water stream, heat transferring medium forms high-temperature vapor inside heat exchanger tube, and high-temperature vapor is exported from heat transferring medium and is discharged, and heat transferring medium outlet is connected with external afterheat generating system;Described kiln head cover one end is connected with rotary kiln, and the other end is connected with burner.The structure fundamentally avoids the phenomenon that tertiary-air pipe and rotary kiln " tacking ", substantially increases the working efficiency of rotary kiln, improves the working efficiency of entire firing system.

Description

A kind of kiln hood firing system
Technical field
The present invention relates to the equipment manufacturing of cement firing system and field of intelligent control, especially a kind of kiln hood firing system And its tertiary air temprature control method.
Background technique
NSP rotary kiln production line technology for cement production is highly developed in China, and firing is continuously improved The efficiency of system, reducing coal consumption power consumption is the problem of cement industry practitioner studies always, from cement production process, is returned Rotary kiln cylinder, kiln head cover, grate-cooler, tertiary-air pipe, kiln hood firing system still remains problems composed by burner, such as The kiln head cover in current cement plant is connected to two kinds of capital equipments of tertiary-air pipe and rotary kiln simultaneously, is frequently present of tertiary-air pipe and returns The phenomenon that rotary kiln " tacking ", that is to say, that air temperature is excessively high three times, causes kiln temperature inadequate, and this phenomenon will lead to revolution Material resolution ratio inside kiln is low, reduces the firing efficiency of rotary kiln, while air temperature is excessively high three times also results in tertiary air The service life of pipe reduces, and the service life of the high-temperature gate valve of tertiary-air pipe reduces.
The cogeneration technology of dry-process rotory kiln production line, which is introduced, apply after digestion very mature, but is only capable of utilizing kiln at present 350 DEG C of middle-temperature section in 300 DEG C of tail preheater~360 DEG C of waste gas residual heats and kiln hood grate-cooler~
400 DEG C of waste gas residual heats cause the most thermal energy of afterheat generating system insufficient, and main steam pressure is relatively low, and design is not achieved Rated generation amount.On the other hand, 900 DEG C~1300 DEG C of high temperature section of stream of hot air is seldom utilized in grate-cooler, and High temperature gas flow in rotary kiln and tertiary-air pipe is easy tertiary-air pipe damage.
Summary of the invention
The purpose of this section is to summarize some aspects of the embodiment of the present invention and briefly introduce some preferable implementations Example.It may do a little simplified or be omitted to avoid our department is made in this section and the description of the application and the title of the invention Point, the purpose of abstract of description and denomination of invention it is fuzzy, and this simplification or omit and cannot be used for limiting the scope of the invention.
The problem of in view of above-mentioned and/or existing kiln hood firing system, propose the present invention.
Therefore, the one of purpose of the present invention is to provide a kind of kiln hood firing system, and which overcome the prior arts not Foot uses small kiln head cover, and not in a kiln head cover, there is no tertiary-air pipes and rotary kiln " to rob for tertiary-air pipe and rotary kiln The phenomenon that wind ";On the other hand, it is provided with heat-exchanger rig in tertiary air channel, not only can control the temperature of tertiary air, moreover it is possible to receive Collect the tertiary air of grate-cooler high temperature section, and be used for cogeneration, coal consumption and power consumption can be reduced, tertiary air is preferably utilized.
In order to solve the above technical problems, the invention provides the following technical scheme: a kind of kiln hood firing system comprising following Several main devices, that is, tertiary air channel, heat exchanger, kiln head cover, tertiary-air pipe, Centralized Controller;Make in tertiary-air pipe channel It is connected for one of capital equipment of the invention upper part with tertiary-air pipe, lower part is connected with grate-cooler;Heat exchanger peace Mounted in the inside in tertiary air channel, for accessing external water stream, heat transferring medium is formed heat transferring medium entrance inside heat exchanger tube High-temperature vapor, high-temperature vapor are exported from heat transferring medium and are discharged, and heat transferring medium outlet is connected with external afterheat generating system It connects;Kiln head cover one end is connected with rotary kiln, and the other end is connected with burner.
A kind of preferred embodiment as kiln hood firing system of the present invention, in which: be equipped in tertiary air vias inner walls High-temperature resistant nano material is equipped with type metal expansion joint in tertiary air channel, is equipped with temperature sensor at tertiary air feeder connection, The effect of the temperature sensor is to monitor the temperature for entering tertiary-air pipe channel.
A kind of preferred embodiment as kiln hood firing system of the present invention, in which: at the medium entrance of heat exchanger and Contain medium storage tank at media outlet, and the quantity of heat exchanger tube is greater than 2 groups, every group of heat exchanger tube entrance only contains electromagnetism Valve.
A kind of preferred embodiment as kiln hood firing system of the present invention, in which: and resistance to height is installed in tertiary-air pipe Warm nano material.
A kind of preferred embodiment as kiln hood firing system of the present invention, in which: the kiln hood firing system is three times Air temperature control method, comprising the following steps:
Step 1, setup parameter and program;
The outlet temperature T that comes out of the tertiary air from tertiary air channel is set in Centralized Controllerin, ToutIt is also simultaneously The inlet temperature for entering tertiary-air pipe sets the inlet temperature t of heat transferring mediuminWith the outlet temperature t of heat transferring mediumout
Following calculation procedure is set in Centralized Controller
One, heat exchange amount calculation procedure:
Q=m1Cpi(Tin-Tout)
Wherein: Q is heat exchange amount;m1For tertiary air quantity;CpiSpecific heat capacity, TinIt is that tertiary air enters entering for tertiary-air pipe channel Mouth temperature;ToutThe outlet temperature that tertiary air is gone out from tertiary-air pipe channel.
Two, the calculation procedure of the evenly heat transmitting temperature difference:
Wherein: toutIt is the outlet temperature of heat transferring medium;tinThe inlet temperature of heat transferring medium;ΔtmEvenly heat transmits the temperature difference;
Three, the calculation procedure of heat exchange area:
Wherein: A is heat exchange area;
Four, the calculation procedure of heat transferring medium flow:
Wherein: m is the flow of heat transferring medium;
Step 2 receives output parameter, is calculated according to parameter;
The temperature that export by temperature sensor is received by Centralized Controller, that is, by grate-cooler generation high-temperature gas into Enter the inlet temperature T to tertiary air channelin, heat exchange is successively calculated further according to the parameters and calculation procedure set before The flow m of area A and heat transferring medium;
Step 3 controls equipment according to the parameter exported after calculating;
According to heat exchange area A it can be concluded that heat exchanger tube needs the number opened, then beaten by solenoid valve to control heat exchanger tube The number opened;
The flow of heat transferring medium is controlled according to the flow m of the heat transferring medium calculated;
Step 4, feedback and optimization;
It temperature sensor is installed by the tertiary air inlet of tertiary-air pipe can detecte and actually enter tertiary air The inlet temperature T of pipes, then by many experiments find TsAnd ToutBetween relationship, and introduce correction factor or correction formula K, Finally obtain Ts=KTout
Beneficial effects of the present invention following points:
The first, traditional kiln head cover is connected to tertiary-air pipe and rotary kiln simultaneously, often will cause tertiary-air pipe and revolution The phenomenon that kiln " tacking ", and kiln head cover is not connected with tertiary-air pipe in the present invention, using tertiary-air pipe channel and tertiary-air pipe phase Even, tertiary-air pipe channel and kiln head cover are two spaces independently, this structure fundamentally avoid tertiary-air pipe and The phenomenon that rotary kiln " tacking ", the working efficiency of rotary kiln is substantially increased, improves the working efficiency of entire firing system, be Material more preferably more fully decomposes in rotary kiln;
The second, in the present invention, tertiary air channel is specially devised, which is directly connected with the high temperature section of grate-cooler, And heat exchanger is mounted in tertiary-air pipe channel, cogeneration on the one hand is carried out using the high-temperature gas of kiln hood, is mentioned significantly High utilization rate of waste heat, on the other hand can control the temperature of tertiary air to a certain extent, improve the use of tertiary-air pipe Service life;
In third, the present invention, the control method and a whole set of calculation procedure of a kind of pair of tertiary air are provided, the program is not only Can be accurately controlled and utilize tertiary air, but also intelligentized control method to cement plant and fine-grained management provide it is constructive Thinking, intelligentized control method can also be carried out to First air and Secondary Air with this method and thinking, while also setting in the program The step of having counted feedback and optimization, introduces correction factor or correction formula K, can be continuous subsequently through the accumulation of mass data Optimize the calculation procedure, make the control of tertiary air and utilizes more accurate.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of embodiment of the present invention.
Fig. 2 is the structural schematic diagram of kiln head cover in embodiment of the present invention.
Fig. 3 is the main view of the structural schematic diagram of embodiment of the present invention heat exchanger.
Fig. 4 is the top view of the structural schematic diagram of embodiment of the present invention heat exchanger.
Fig. 5 is the schematic diagram of embodiment of the present invention.
Fig. 6 is control method flow chart.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, right with reference to the accompanying drawings of the specification A specific embodiment of the invention is described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, " one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the invention A particular feature, structure, or characteristic in formula." in one embodiment " that different places occur in the present specification not refers both to The same embodiment, nor the individual or selective embodiment mutually exclusive with other embodiments.
Referring to Fig. 1~4, the present invention provides a kind of kiln hood firing system comprising: tertiary air channel 100, heat exchanger 200, kiln head cover 300, tertiary-air pipe 900, Centralized Controller 1100;100 top of tertiary-air pipe channel and tertiary-air pipe 900 It is connected, lower part is connected with grate-cooler 400.
The heat exchanger 200 is mounted on the inside in tertiary-air pipe channel 100 comprising heat transferring medium entrance 201 changes Heat pipe 203 and heat transferring medium outlet 204.Wherein, for accessing external water stream, heat transferring medium is changing heat transferring medium entrance 201 Form high-temperature vapor inside heat pipe 203, high-temperature vapor from 204 discharge of heat transferring medium outlet, heat transferring medium outlet 204 with it is outer The afterheat generating system in portion is connected;
Further, described 300 one end of kiln head cover is connected with rotary kiln 500, and the other end is connected with burner 800.
Further, high-temperature resistant nano material 101, installation in tertiary air channel 100 are installed on 100 inner wall of tertiary air channel There is type metal expansion joint 700,100 inlet of tertiary air channel is equipped with temperature sensor 600.
Further, contain medium storage tank 202, institute at the medium entrance of the heat exchanger 200 and at media outlet The quantity for stating heat exchanger tube 203 is greater than 2 groups, and every group of heat exchanger tube entrance only contains solenoid valve 205.
Further, the tertiary air inlet of the tertiary-air pipe 900 is equipped with temperature sensor 1000, the tertiary-air pipe 800 internal diameters are equipped with high-temperature resistant nano material 101.
Referring to Fig. 5~6, kiln hood firing system among the above uses tertiary air temprature control method, including following step It is rapid:
Step 1, setup parameter and program;
The outlet temperature T that comes out of the tertiary air from tertiary air channel 100 is set in Centralized Controller 1100in, ToutTogether When be also into the inlet temperature of tertiary-air pipe 900, set the inlet temperature t of heat transferring mediuminWith the outlet of heat transferring medium Temperature tout
Following calculation procedure is set in Centralized Controller 1100
Heat exchange amount calculation procedure:
Q=m1CpiTin-Tout
Wherein: Q is heat exchange amount;m1For tertiary air quantity;CpiSpecific heat capacity, TinIt is that tertiary air enters tertiary-air pipe channel 100 Inlet temperature;ToutThe outlet temperature that tertiary air is gone out from tertiary-air pipe channel 100.
The calculation procedure of the evenly heat transmitting temperature difference:
Wherein: toutIt is the outlet temperature of heat transferring medium;tinThe inlet temperature of heat transferring medium;ΔtmEvenly heat transmits the temperature difference;
The calculation procedure of heat exchange area:
Wherein: A is heat exchange area;
The calculation procedure of heat transferring medium flow:
Wherein: m is the flow of heat transferring medium;
Step 2 receives output parameter, is calculated according to parameter;
The temperature exported by temperature sensor 600 is received by Centralized Controller 1100, that is, generated by grate-cooler 400 High-temperature gas enters the inlet temperature T in tertiary air channel 100in, further according to the parameters and calculation procedure set before Successively calculate the flow m of heat exchange area A and heat transferring medium;
Step 3 controls equipment according to the parameter exported after calculating;
According to heat exchange area A it can be concluded that heat exchanger tube needs the number opened, then heat exchanger tube is controlled by solenoid valve 205 The number of opening;
The flow of heat transferring medium is controlled according to the flow m of the heat transferring medium calculated;
Step 4, feedback and optimization;
It temperature sensor 1000 is installed by the tertiary air inlet of tertiary-air pipe 900 can detecte and actually enter The inlet temperature T of tertiary-air pipes, then by many experiments find TsAnd ToutBetween relationship, and introduce correction factor or amendment Formula K, finally obtains Ts=KTout
It is important that, it should be noted that the construction and arrangement of the application shown in multiple and different exemplary implementation schemes is only It is illustrative.Although several embodiments are only described in detail in this disclosure, refering to the personnel of the displosure content It should be easily understood that many changes under the premise of substantially without departing from the novel teachings and advantage of theme described in this application Type is possible (for example, the size of various elements, scale, structure, shape and ratio and parameter value are (for example, temperature, pressure Deng), mounting arrangements, the use of material, color, the variation of orientation etc.).It can be by more for example, being shown as integrally formed element A part or element are constituted, and the position of element can be squeezed or change in other ways, and the property or number of discrete component Or position can be altered or changed.Therefore, all such remodeling are intended to be comprised in the scope of the present invention.It can be according to replacing The embodiment in generation changes or the order or sequence of resequence any process or method and step.In the claims, any " dress Set plus function " clause be intended to and be covered on the structure described herein for executing the function, and it is equivalent to be not only structure It but also is equivalent structure.Without departing from the scope of the invention, can exemplary implementation scheme design, operation Other replacements are made in situation and arrangement, remodeling, are changed and are omitted.Therefore, the present invention is not limited to specific embodiments, and It is to extend to a variety of remodeling still fallen within the scope of the appended claims.
In addition, all spies of actual implementation scheme can not be described in order to provide the terse description of exemplary implementation scheme Sign is (that is, with execution those incoherent features of optimal mode of the invention for currently considering, or in realizing that the present invention is incoherent Those features).
It should be understood that in the development process of any actual implementation mode, it, can such as in any engineering or design object A large amount of specific embodiment is made to determine.Such development effort may be complicated and time-consuming, but for those benefits For the those of ordinary skill of the displosure content, do not need excessively to test, the development effort will be one design, manufacture and The routine work of production.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferable Embodiment describes the invention in detail, those skilled in the art should understand that, it can be to technology of the invention Scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered in this hair In bright scope of the claims.

Claims (9)

1. a kind of kiln hood firing system, it is characterised in that: including tertiary air channel (100), heat exchanger (200), kiln head cover (300), tertiary-air pipe (900) and Centralized Controller (1100);
Tertiary-air pipe channel (100) top is connected with tertiary-air pipe (900), and lower part is connected with grate-cooler (400);
The heat exchanger (200) is mounted on the inside of tertiary-air pipe channel (100) comprising heat transferring medium entrance (201), Heat exchanger tube (203) and heat transferring medium outlet (204), for accessing external water stream, heat exchange is situated between the heat transferring medium entrance (201) Matter forms high-temperature vapor inside heat exchanger tube (203), and high-temperature vapor is discharged from heat transferring medium outlet (204), heat transferring medium Outlet (204) is connected with external afterheat generating system;
Described kiln head cover (300) one end is connected with rotary kiln (500), and the other end is connected with burner (800).
2. kiln hood firing system as described in claim 1, it is characterised in that: be equipped on tertiary air channel (100) inner wall resistance to High-temperature nano material (101) is equipped with type metal expansion joint (700), tertiary air channel (100) entrance in tertiary air channel (100) Place is equipped with temperature sensor (600).
3. kiln hood firing system as claimed in claim 2, it is characterised in that: at the medium entrance of the heat exchanger (200) With contain at media outlet medium storage tank (202), the quantity of the heat exchanger tube (203) is greater than 2 groups, and every group of heat exchanger tube into Only contain solenoid valve (205) at mouthful.
4. kiln hood firing system as claimed in claim 3, it is characterised in that: the tertiary air entrance of the tertiary-air pipe (900) Place is equipped with temperature sensor (1000), and tertiary-air pipe (800) internal diameter is equipped with high-temperature resistant nano material (101).
5. kiln hood firing system as claimed in claim 4, it is characterised in that: the kiln hood firing system is using air temperature three times Control method comprising following steps:
S1: setup parameter and program;
The outlet temperature T that comes out of the tertiary air from tertiary air channel (100) is set in Centralized Controller (1100)in, ToutTogether When be also into the inlet temperature of tertiary-air pipe, set the inlet temperature t of heat transferring mediuminWith the outlet temperature of heat transferring medium tout;Calculation procedure is set in Centralized Controller (1100);
S2: output parameter is received, is calculated according to parameter;
S3: equipment is controlled according to the parameter exported after calculating;
S4: feedback and optimization.
6. kiln hood firing system as claimed in claim 5, it is characterised in that: in the step S1, in Centralized Controller (1100) following calculation procedure is set in:
One, heat exchange amount calculation procedure:
Q=m1Cpi(Tin-Tout)
Wherein: Q is heat exchange amount;m1For tertiary air quantity;CpiSpecific heat capacity, TinIt is that tertiary air enters tertiary-air pipe channel (100) Inlet temperature;ToutThe outlet temperature that tertiary air is gone out from tertiary-air pipe channel (100).
Two, the calculation procedure of the evenly heat transmitting temperature difference:
Wherein: toutIt is the outlet temperature of heat transferring medium;tinThe inlet temperature of heat transferring medium;ΔtmEvenly heat transmits the temperature difference;
Three, the calculation procedure of heat exchange area:
Wherein: A is heat exchange area;
Four, the calculation procedure of heat transferring medium flow:
Wherein: m is the flow of heat transferring medium.
7. kiln hood firing system as claimed in claim 5, it is characterised in that: received by Centralized Controller (1100) and passed by temperature The temperature of sensor (600) output, that is, tertiary air channel (100) is entered by the high-temperature gas that grate-cooler (400) generate Inlet temperature Tin, heat exchange area A and heat transferring medium are successively calculated further according to the parameters and calculation procedure set before Flow m.
8. kiln hood firing system as claimed in claim 5, it is characterised in that: according to heat exchange area A it can be concluded that heat exchanger tube need The number to be opened, then control by solenoid valve (205) number of heat exchanger tube opening;
The flow of heat transferring medium is controlled according to the flow m of the heat transferring medium calculated.
9. kiln hood firing system as claimed in claim 5, it is characterised in that: pass through the tertiary air entrance of tertiary-air pipe (900) Place, which is equipped with temperature sensor (1000), can detecte the inlet temperature T for actually entering tertiary-air pipes, then by repeatedly real It tests and finds TsAnd ToutBetween relationship, and introduce correction factor or correction formula K, finally obtain Ts=KTout
CN201910346755.XA 2019-04-27 2019-04-27 A kind of kiln hood firing system Pending CN109931781A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910346755.XA CN109931781A (en) 2019-04-27 2019-04-27 A kind of kiln hood firing system

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN203474658U (en) * 2013-10-22 2014-03-12 王中革 Cement manufacturing equipment for utilizing waste paint slag as auxiliary fuel
CN203657437U (en) * 2013-12-30 2014-06-18 重庆金九建材集团有限公司 Device for increasing waste heat generating capacity by utilizing radiant heat of cement rotary kiln
CN203928775U (en) * 2014-07-11 2014-11-05 尹小林 A kind of rotary kiln head-shield waste heat that utilizes is for the device of cogeneration
CN106766962A (en) * 2017-01-12 2017-05-31 中国科学院力学研究所 A kind of rotary kiln tertiary-air pipe waste heat takes thermal
CN106839788A (en) * 2017-01-12 2017-06-13 中国科学院力学研究所 A kind of cement clinker production line waste heat comprehensive utilization system
CN108680039A (en) * 2018-06-15 2018-10-19 天津健威泽节能环保科技股份有限公司 A kind of device and implementation method improving cogeneration ability using circulated air
CN109485280A (en) * 2019-01-24 2019-03-19 吉林亚泰水泥有限公司 A kind of environment protecting cement clinker manufacturing process
CN209802051U (en) * 2019-04-27 2019-12-17 南京凯盛国际工程有限公司 kiln head firing system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN203474658U (en) * 2013-10-22 2014-03-12 王中革 Cement manufacturing equipment for utilizing waste paint slag as auxiliary fuel
CN203657437U (en) * 2013-12-30 2014-06-18 重庆金九建材集团有限公司 Device for increasing waste heat generating capacity by utilizing radiant heat of cement rotary kiln
CN203928775U (en) * 2014-07-11 2014-11-05 尹小林 A kind of rotary kiln head-shield waste heat that utilizes is for the device of cogeneration
CN106766962A (en) * 2017-01-12 2017-05-31 中国科学院力学研究所 A kind of rotary kiln tertiary-air pipe waste heat takes thermal
CN106839788A (en) * 2017-01-12 2017-06-13 中国科学院力学研究所 A kind of cement clinker production line waste heat comprehensive utilization system
CN108680039A (en) * 2018-06-15 2018-10-19 天津健威泽节能环保科技股份有限公司 A kind of device and implementation method improving cogeneration ability using circulated air
CN109485280A (en) * 2019-01-24 2019-03-19 吉林亚泰水泥有限公司 A kind of environment protecting cement clinker manufacturing process
CN209802051U (en) * 2019-04-27 2019-12-17 南京凯盛国际工程有限公司 kiln head firing system

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