CN104819650A - Intelligent control system of industrial furnace - Google Patents
Intelligent control system of industrial furnace Download PDFInfo
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- CN104819650A CN104819650A CN201510165262.8A CN201510165262A CN104819650A CN 104819650 A CN104819650 A CN 104819650A CN 201510165262 A CN201510165262 A CN 201510165262A CN 104819650 A CN104819650 A CN 104819650A
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Abstract
The invention discloses an intelligent control system of an industrial furnace. The intelligent control system comprises a cement furnace body, and a decomposition furnace online smoke analyzer, a rotary kiln smoke chamber online smoke analyzer, a high-temperature fan, a tertiary air valve, a raw material detecting analyzer, a coal quality detecting analyzer, a kiln head coal scale and a kiln tail coal scale connected with the body; the intelligent control system of the industrial furnace is characterized by being connected with the cement furnace body, transmits control and sampling signals of a traditional cement furnace control system in a communication manner, and sends the control and sampling signals to the traditional cement furnace control system; and the traditional cement furnace control system sends signals needed by the intelligent control system of the industrial furnace to the intelligent control system of the industrial furnace.
Description
Technical field
The present invention relates to cement furnace control technology field, particularly relate to a kind of industrial furnace intelligence control system.
Background technology
Cement furnace comprises rotary kiln and dore furnace, and rotary kiln refers to rotary calcining kiln (being commonly called as rotary kiln), belongs to building equipment class.Rotary kiln can be divided into cement kiln, chemical metallurgy kiln and limekiln by material handling difference.Cement kiln is mainly used in calcination of cement clinker, point dry production cement kiln and the large class of wet production cement kiln two.Chemical metallurgy kiln is then mainly used in the poor iron ore magnetic roasting of metallurgy industry steel plant; Chromium, josephinite oxidizing roasting; Refractory factory roasting high-aluminium vanadine ore deposit and aluminium manufacturer's roasting grog, aluminium hydroxide; The class mineral such as chemical plant roasting chrome ore and chromite ore fine.Limekiln (i.e. active lime kiln) is for the active lime of roasting steel plant, ferroalloy works and light dolomite.When producing in conjunction with dore furnace rotary kiln, raw material feeds in raw material to Dayao kiln tail from storage bin continuously through batcher, because kiln body is slightly in tilting, so along with the slow rotation of cylindrical shell, raw material just moves to kiln hood gradually, sprays into coal gas and becomes heavy oil, the air mixed combustion controlled with kiln hood from kiln hood nozzle, form the high-temperature calcination band that reaches 5 ~ 10m, calcining belt temperature reaches 1200 ~ 1350 DEG C.The time that raw material stops in kiln only has 50 ~ 60min, and the waste gas produced in kiln then enters air by the draft of induced-draft fan and chimney.Fuel is coal gas and heavy oil, also has the volatile matter that calcining materials is discharged, when carbon raw materials (as pitch coke and anthracite) that calcining volatile matter is low, and fuel nozzle continuous operation; When calcining volatile matter and being greater than the raw material of 5%, it is work that nozzle only heats up at Dayao, after intensification, in order to just adjust burning zone to carry out work once in a while.Under normal circumstances, seldom use extra fuel, the volatile combustion of mainly discharging by calcining material maintains high temperature in kiln.
Realize the optimal efficacy of rotary kiln and dore furnace, need the control system of high intelligence to realize, also do not have the high integrated control device of multisystem integrated application to realize at present.
Summary of the invention
The object of the present invention is to provide a kind of industrial furnace intelligence control system, effectively solve the problems of the technologies described above.
For effectively solving the problems of the technologies described above, the technical scheme that the present invention takes is as follows:
Industrial furnace intelligence control system, comprise cement furnace main body and detect analyzer, coal property test analyzer, kiln hood coal scale and kiln tail coal scale with described main body interconnective dore furnace flue gas on-line analysis instrument, rotary kiln smoke-box flue gas on-line analysis instrument, high-temperature blower, tertiary air valve, raw material, and industrial furnace intelligence control system is set, industrial furnace intelligence control system is connected alternately with described cement furnace main body, and described industrial furnace intelligence control system is transmitted in the mode communicated with sampled signal with the control of the former control system of described cement furnace; Described industrial furnace intelligence control system control signal and sampled signal send the former control system of described cement furnace to, and the former control system of described cement furnace sends the signal that described industrial furnace intelligence control system needs to described industrial furnace intelligence control system.
Especially, described industrial furnace intelligence control system receives the data-signal of the former control system of described cement furnace, described data-signal comprises raw material output, temperature of kiln head, kiln end temperature, kiln hood negative pressure, kiln tail negative pressure, kiln hood scale injecting coal quantity feeds back, kiln hood scale injecting coal quantity is given, kiln tail scale injecting coal quantity feeds back, kiln tail injecting coal quantity is given, high-temperature blower speed feedback, high-temperature blower rotational speed setup, tertiary air valve open degree feedback, tertiary air valve aperture is given, dore furnace internal temperature, dore furnace head temperature (or decomposition furnace outlet temperature), kiln hood scale is fed coal total amount and is added up, kiln tail scale is fed coal total amount and is added up, two coal scales are fed coal total amount and are added up, raw material total amount is accumulative and grog total amount is accumulative.
Especially, the former control system of described cement furnace transmits automatic regulating command signal to described industrial furnace intelligence control system, and described automatic regulating command signal comprises kiln temperature automatic regulating command signal, the automatic regulating command signal of calciner temperature, rotary kiln burning self-regulation command signal and dore furnace burning self-regulation command signal.
Especially, the signal that described industrial furnace intelligence control system is transferred to the former control system of described cement furnace comprises kiln hood scale injecting coal quantity signal, kiln tail (dore furnace) scale injecting coal quantity signal, high-temperature blower tach signal, tertiary air valve opening amount signal, rotary kiln smoke-box online flue gas analyzer carbon monoxide and oxygen content signal, the online flue gas analyzer carbon monoxide of decomposition furnace outlet and oxygen content signal.
Especially, the former control system of described cement furnace sends a kiln temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement furnace rotary kiln temperature for feedback signal, rotary kiln end temperature is reference signal, the injecting coal quantity of automatic adjustment cement furnace kiln hood scale, its kiln end temperature is controlled within limits (general 1030 ± 1 DEG C)), temperature of kiln head is stable within limits, and its temperature controlling range is determined according to on-the-spot stove situation.
Especially, the former control system of described cement furnace sends a calciner temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement kiln dore furnace top or outlet temperature for feedback signal, decomposition furnace outlet online flue gas analyzer oxygen content signal as a reference, the injecting coal quantity of automatic adjustment cement furnace kiln tail scale, its calciner temperature is controlled within limits (general 852 DEG C ± 3 DEG C), and its temperature controlling range is determined according to on-the-spot stove situation.
Especially, described cement furnace control system sends a rotary kiln burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system gathers carbon monoxide or oxygen content as feedback signal using the online flue gas analyzer of the smoke-box of cement furnace tail, rotary kiln negative pressure is reference signal, the rotating speed of automatic adjustment cement furnace high-temperature blower is (rotational speed regulation scope is determined according to the carbon monoxide of raw material output and the online flue gas analyzer of kiln tail smoke-box or oxygen content signal) within limits, make its rotary kiln vacuum cavitations tiny structure within-100pa to-300pa scope, carbon monoxide content controls at below 200PPM, Control for Oxygen Content is below 2%.
Especially, described cement furnace control system sends a dore furnace burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system is using the carbon monoxide of the online flue gas analyzer of dore furnace or oxygen content as feedback signal, the aperture controlling tertiary air valve regulates within limits (adjustable range of its aperture is determined according to the CO signals of the online flue gas analyzer of raw material output Sum decomposition stove or oxygen content signal), its carbon monoxide content is made to control at below 200ppm, Control for Oxygen Content is below 2%.
Especially, the online flue gas analyzer of described dore furnace realizes dore furnace combustion product feedback, by the automatic control automatically regulating tertiary air valve aperture to realize dore furnace burning; The online flue gas analyzer combustion product feedback of described rotary kiln smoke-box, by the automatic control automatically regulating high-temperature blower rotating speed to realize rotary kiln burning; Described dore furnace head temperature or outlet temperature feedback, realize calciner temperature by automatically regulating dore furnace rotor weigher injecting coal quantity and automatically control; Described rotary kiln temperature is feedback, and temperature of kiln head is for automatically controlling with reference to by automatically regulating kiln hood scale injecting coal quantity to realize kiln temperature; The online flue gas analyzer feedback of described raw material output, dore furnace online flue gas analyzer feedback, rotary kiln, raw material (raw material) analyzer detect feedback, coal analysis instrument detection feedback, according to its data, determine the injecting coal quantity adjustable range of the aperture adjustable range of high-temperature blower rotational speed regulation scope, tertiary air valve, the injecting coal quantity adjustable range of dore furnace rotor weigher and rotary kiln end scale.
Beneficial effect of the present invention is:
(1) industrial furnace intelligence control system provided by the invention, automatic control cement furnace calciner temperature, make that its maximum temperature fluctuates within+-15 DEG C of scopes, minimum temperature fluctuation range within the scope of ± 2 DEG C, temperature controls to stablize than manual operation, and control accuracy is high.
(2) automatically control cement furnace kiln temperature, make rotary kiln temperature stabilization about 1030 DEG C, maximum temperature fluctuation within ± 5 DEG C of scopes, minimal ripple scope is within the scope of ± 1 DEG C; Kiln hood secondary air temperature is stabilized in about 1100-1150 DEG C, maximum temperature fluctuation within ± 25 DEG C of scopes, minimal ripple scope is within the scope of ± 10 DEG C; Temperature controls to stablize than manual operation, and control accuracy is high; Its temperature range is main still according to the situation.
(3) automatically regulate the oxygen content of dore furnace, control below 2%, make it burn under hypoxia, reduce carbon monoxide emission, stablize the burning of dore furnace, its actual carbon monoxide in flue gas discharge can be controlled in average below 200PPM.
(4) automatically regulate the oxygen content of rotary kiln, control below 2%, make it burn under hypoxia, reduce carbon monoxide emission, stablize the burning of rotary kiln, in its actual kiln, carbon monoxide content can be controlled in average below 200PPM.
(5) working of a furnace of the whole cement producing line of Absorbable organic halogens, its maintenance stove cycle is elongated, saves maintenance cost, and igniting expense reduces.
(6) its rotary kiln Sum decomposition furnace temperature is stablized, and refractory brick useful life lengthens, and saves maintenance cost.
(7) often produce one ton of clinker, mark coal about 3KG can be saved.Improve strength of cement, make cement quality better, improve clinker.
(8) high temperature frequency conversion fan is regulated, using electricity wisely.
(9) reduce the fault that manual operation causes, alleviate the labour intensity of operator.
(10) whole system reaction speed is fast, and control accuracy is high.
(11) according to raw material output, raw material, the data determination kiln hood coal scale of coal elemental composition analysis, the adjustable range of kiln tail (dore furnace) coal scale, its injecting coal quantity is regulated within rational scope.
(12) according to data determination tertiary air valve aperture, the high-temperature blower rotational speed regulation scope of raw material output, dore furnace analyzer, the analysis of rotary kiln analyzer, make it within rational air distribution scope.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is industrial furnace intelligence control system schematic flow sheet of the present invention.
Detailed description of the invention
Embodiment 1:
In the present embodiment, the composition original paper of described conventional known structure does not do explanatory note and display in the drawings.
As shown in Figure 1, industrial furnace intelligence control system disclosed in the present embodiment, industrial furnace intelligence control system, comprise cement furnace main body and with the online flue gas analyzer of the interconnective analytical furnace of described main body, the online flue gas analyzer of rotary kiln smoke-box, high-temperature blower, tertiary air valve, raw material detects analyzer, coal property test analyzer, kiln hood scale and kiln tail scale, cement furnace control system is set and industrial furnace intelligence control system is connected alternately with described cement furnace main body, described industrial furnace intelligence control system is transmitted in the mode communicated with sampled signal with the control of described cement furnace control system, described industrial furnace intelligence control system control signal and sampled signal send described cement furnace control system to, and described cement furnace control system sends the signal that described industrial furnace intelligence control system needs to described industrial furnace intelligence control system.
Described industrial furnace intelligence control system receives the data-signal of described cement furnace control system, described data-signal comprises raw material output, temperature of kiln head, kiln end temperature, kiln hood negative pressure, kiln tail negative pressure, kiln hood scale injecting coal quantity feeds back, kiln hood scale injecting coal quantity is given, kiln tail scale injecting coal quantity feeds back, kiln tail injecting coal quantity is given, high-temperature blower speed feedback, high-temperature blower rotational speed setup, tertiary air valve open degree feedback, tertiary air valve aperture is given, dore furnace internal temperature, dore furnace head temperature (or decomposition furnace outlet temperature), kiln hood scale is fed coal total amount and is added up, kiln tail scale is fed coal total amount and is added up, two coal scales are fed coal total amount and are added up, raw material total amount is accumulative and grog total amount is accumulative.Described cement furnace control system transmits automatic regulating command signal and described industrial furnace intelligence control system, and described automatic regulating command signal comprises kiln temperature automatic regulating command signal, the automatic regulating command signal of calciner temperature, rotary kiln burning self-regulation command signal and dore furnace burning self-regulation command signal.Described industrial furnace intelligence control system transmission comprises kiln hood scale injecting coal quantity signal, kiln tail scale injecting coal quantity signal, high-temperature blower tach signal, tertiary air valve opening amount signal, rotary kiln smoke-box online flue gas analyzer carbon monoxide and oxygen content signal, the online flue gas analyzer carbon monoxide of decomposition furnace outlet and oxygen content signal with the signal of described cement furnace control system.
Described cement furnace control system sends a kiln temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement furnace rotary kiln temperature for feedback signal, rotary kiln end temperature is reference signal, the injecting coal quantity of automatic adjustment cement furnace kiln hood scale, make its kiln end temperature control about 1130 DEG C of scopes, temperature of kiln head controls within 1100-1150 DEG C of scope.Described cement furnace control system sends a calciner temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement kiln dore furnace top or outlet temperature for feedback signal, decomposition furnace outlet online flue gas analyzer oxygen content signal as a reference, the injecting coal quantity of automatic adjustment cement furnace kiln tail scale, makes its kiln end temperature control at about 852 DEG C.Described cement furnace control system sends a rotary kiln burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system gathers carbon monoxide as feedback signal using the online flue gas analyzer of the smoke-box of cement furnace tail, rotary kiln negative pressure is reference signal, the rotating speed of automatic adjustment cement furnace high-temperature blower, make its rotary kiln vacuum cavitations within-100Pa to-300Pa, carbon monoxide content controls at below 200PPM, and Control for Oxygen Content is below 2%.Described cement furnace control system sends a dore furnace burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system is using the carbon monoxide measured value of dore furnace analyzer as feedback signal, control the aperture of tertiary air valve, make its carbon monoxide content control at below 200ppm, Control for Oxygen Content is below 2%.Described dore furnace analyzer realizes dore furnace combustion product feedback, regulates tertiary air valve to realize the automatic control of dore furnace burning; Described smoke-box analyzer realizes rotary kiln tail smoke-box combustion product and feeds back the automatic control realizing rotary kiln negative pressure and burning with kiln tail negative pressure feedback; The adjustable range that described raw material output, raw material detect feedback, coal property test feedback determines kiln hood coal scale, kiln tail coal scale injecting coal quantity; The data determination tertiary air valve aperture that described raw material output, dore furnace analyzer, rotary kiln smoke-box analyzer are analyzed, the adjustable range of high-temperature blower rotating speed.
In this embodiment, automatic control cement furnace calciner temperature, it is made to control at (852 DEG C ± 3 DEG C), illustrate: different producers, the position that cement furnace calciner temperature sensor is installed may be different, temperature controlled in maximum fluctuation within ± 10 DEG C of scopes according to its situation, minimal ripple is within ± 2 DEG C of scopes.Automatic control cement furnace kiln temperature, it is made to control within (1130 DEG C ± 5 DEG C), illustrate: different producers, the position that cement furnace kiln temperature sensor is installed may be different, rotary kiln temperature to be controlled in maximum fluctuation within ± 5 DEG C of scopes, minimal ripple scope is within the scope of ± 1 DEG C according to its situation; Temperature of kiln head is stabilized in maximum fluctuation at ± 25 DEG C, and minimal ripple scope is just passable within the scope of ± 10 DEG C.Automatic control rotary kiln tail negative pressure, makes its vacuum cavitations within-100Pa to-300Pa scope, and rotary kiln furnace pressure is stablized.The oxygen content of automatic adjustment dore furnace, controls below 2%, makes it burn under hypoxia, reduces carbon monoxide emission, stablizes the burning of dore furnace, and its actual carbon monoxide in flue gas discharge can be controlled in average below 200PPM.The oxygen content of automatic adjustment rotary kiln, controls below 2%, makes it burn under hypoxia, reduces carbon monoxide emission, stablizes the burning of rotary kiln.The working of a furnace of the whole cement producing line of Absorbable organic halogens, its maintenance stove cycle is elongated, saves maintenance cost, and igniting expense reduces.Its rotary kiln Sum decomposition furnace temperature is stablized, and refractory brick useful life lengthens, and saves maintenance cost.Often produce one ton of clinker, mark coal about 3KG can be saved.Improve strength of cement, make cement quality better.Regulate high temperature frequency conversion fan, using electricity wisely.Reduce the fault that manual operation causes, alleviate the labour intensity of operator.Whole system reaction speed is fast, and control accuracy is high.
Applicant states, person of ordinary skill in the field is on the basis of above-described embodiment, by above-described embodiment step, combined with the technical scheme of summary of the invention part, thus the new method produced, also be one of record scope of the present invention, the application, for making description simple and clear, no longer enumerates other embodiment of these steps.
Embodiment 2:
Industrial furnace intelligence control system complete set of equipments is divided into: rotary kiln combustion position sampling system, dore furnace combustion position sampling system, industrial furnace intelligence control system, Monitor Computer Control System, long distance control system.Install online flue gas analyzer one at cement furnace decomposition furnace outlet, measure the Actual combustion state of cement furnace dore furnace, its measuring-signal is: oxygen content signal and CO signals.Install online flue gas analyzer one at cement furnace kiln tail smoke-box, measure the Actual combustion state of cement furnace rotary kiln, its measuring-signal is: oxygen content signal and CO signals.Install industrial furnace intelligence control system (central control cabinet) on cement furnace control system side, industrial furnace intelligence control system is transmitted in the mode communicated with sampled signal with the control of cement furnace control system.
Send described industrial furnace intelligence control system control signal and sampled signal to cement furnace control system, cement furnace control system sends the signal that described industrial furnace intelligence control system needs to described industrial furnace intelligence control system.Described industrial furnace intelligence control system needs the signal of cement furnace control system to be (signal that cement furnace control system sends described industrial furnace intelligence control system to): raw material output, temperature of kiln head, kiln end temperature, kiln hood negative pressure, kiln tail negative pressure, kiln hood scale injecting coal quantity feeds back, kiln hood scale injecting coal quantity is given, kiln tail scale injecting coal quantity feeds back, kiln tail injecting coal quantity is given, high-temperature blower speed feedback, high-temperature blower rotational speed setup, tertiary air valve open degree feedback, tertiary air valve aperture is given, dore furnace internal temperature, dore furnace head temperature (or decomposition furnace outlet temperature), kiln hood scale is fed coal total amount and is added up, kiln tail scale is fed coal total amount and is added up, two coal scales are fed coal total amount and are added up, raw material total amount adds up, grog total amount is accumulative.The automatic regulating command signal (switching value) that cement furnace control system sends described industrial furnace intelligence control system to is: kiln temperature automatic regulating command signal, the automatic regulating command signal of calciner temperature, rotary kiln burning self-regulation command signal, dore furnace burning self-regulation command signal.The signal that described industrial furnace intelligence control system sends cement furnace control system to is: kiln hood scale injecting coal quantity signal, kiln tail scale injecting coal quantity signal, high-temperature blower tach signal, tertiary air valve opening amount signal, rotary kiln smoke-box online flue gas analyzer carbon monoxide and oxygen content signal, the online flue gas analyzer carbon monoxide of decomposition furnace outlet and oxygen content signal.
Described cement furnace control system sends a kiln temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement furnace rotary kiln temperature for feedback signal, rotary kiln end temperature is reference signal, the injecting coal quantity of automatic adjustment cement furnace kiln hood scale, makes its kiln end temperature control within 1130 DEG C of (± 1 DEG C) scopes.Described cement furnace control system sends a calciner temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement kiln dore furnace top (or outlet) temperature for feedback signal, decomposition furnace outlet online flue gas analyzer oxygen content signal as a reference, the injecting coal quantity of automatic adjustment cement furnace kiln tail scale, makes its kiln end temperature control within 852 DEG C of (± 3 DEG C) scopes.Described cement furnace control system sends a rotary kiln burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system is using the online flue gas analyzer carbon monoxide of cement furnace tail smoke-box as feedback signal (oxygen content also can analyzed using rotary kiln smoke-box is as feedback signal), rotary kiln negative pressure is reference signal, the rotating speed of automatic adjustment cement furnace high-temperature blower is (rotational speed regulation scope is determined according to the carbon monoxide of raw material output and the online flue gas analyzer of kiln tail smoke-box or oxygen content signal) within limits, make its rotary kiln vacuum cavitations (-100Pa to-300Pa) within scope, carbon monoxide content controls at below 200PPM, Control for Oxygen Content is below 2%.Described cement furnace control system sends a dore furnace burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with decomposition furnace outlet using the carbon monoxide of line flue gas analyzer as feedback signal (also can using the oxygen content of the online flue gas analyzer of decomposition furnace outlet as feedback signal), the aperture controlling tertiary air valve regulates within limits (adjustable range of its aperture is determined according to the CO signals of the online flue gas analyzer of raw material output Sum decomposition stove or oxygen content signal), its carbon monoxide content is made to control at below 200ppm, Control for Oxygen Content is below 2%.According to raw material, combustion supervision feedback Automatic Optimal control tertiary air valve, high-temperature blower give air quantity.
The technology path being different from prior art in the present embodiment is:
1, with cement furnace rotary kiln temperature for feedback signal, rotary kiln end temperature is reference signal, fuzzy PID algorithm is used automatically to regulate the injecting coal quantity of cement furnace kiln hood scale, its kiln end temperature is controlled within 1130 DEG C of (± 5 DEG C) scopes, and temperature of kiln head controls within 1100-1150 DEG C of scope.
2, with cement kiln dore furnace top (or outlet) temperature for feedback signal, decomposition furnace outlet online flue gas analyzer oxygen content signal as a reference, use fuzzy PID algorithm automatically to regulate the injecting coal quantity of cement furnace kiln tail scale, its kiln end temperature is controlled within (852) DEG C ± 3 DEG C of scopes.
3, using the online flue gas analyzer carbon monoxide of cement furnace tail smoke-box as feedback signal, rotary kiln negative pressure is reference signal, fuzzy PID algorithm is used automatically to regulate the rotating speed of cement stove high-temperature blower, make its rotary kiln vacuum cavitations within (-100Pa to-300Pa) scope, carbon monoxide content controls at below 200PPM, Control for Oxygen Content, below 2%, makes it burn under hypoxia.
4, using the carbon monoxide of the online flue gas analyzer of decomposition furnace outlet as feedback signal, fuzzy PID algorithm is used to control the aperture of tertiary air valve, make its carbon monoxide content control at below 200ppm, Control for Oxygen Content, below 2%, makes it burn under hypoxia.
5, according to the data that raw material output, the online flue gas analyzer of kiln tail smoke-box, the online flue gas analyzer of dore furnace, feedstock analysis instrument, coal analysis instrument are analyzed out, the adjustable range of high-temperature blower rotating speed, tertiary air valve aperture, kiln hood coal scale injecting coal quantity and kiln tail (dore furnace) coal scale injecting coal quantity is determined.
The another statement of applicant, the present invention illustrates implementation method of the present invention and apparatus structure by above-described embodiment, but the present invention is not limited to above-mentioned embodiment, does not namely mean that the present invention must rely on said method and structure could be implemented.Person of ordinary skill in the field should understand, any improvement in the present invention, replaces and the interpolation of step, concrete way choice etc., all drop within protection scope of the present invention and open scope implementation method equivalence selected by the present invention.
The present invention is not limited to above-mentioned embodiment, and all employings and analog structure of the present invention and method thereof realize all embodiments of the object of the invention all within scope.
Claims (10)
1. industrial furnace intelligence control system, comprise cement furnace main body and detect analyzer, coal property test analyzer, kiln hood coal scale and kiln tail coal scale with the online flue gas analyzer of the interconnective dore furnace of described main body, the online flue gas analyzer of rotary kiln smoke-box, high-temperature blower, tertiary air valve, raw material, it is characterized in that, industrial furnace intelligence control system is set; Industrial furnace intelligence control system is connected alternately with described cement furnace main body; Described industrial furnace intelligence control system is transmitted in the mode communicated with sampled signal with the control of the former control system of described cement furnace; Described industrial furnace intelligence control system control signal and sampled signal send the former control system of described cement furnace to, and the former control system of described cement furnace sends the signal that described industrial furnace intelligence control system needs to described industrial furnace intelligence control system.
2. industrial furnace intelligence control system according to claim 1, it is characterized in that, described industrial furnace intelligence control system receives the data-signal of the former control system of described cement furnace, described data-signal comprises raw material output, temperature of kiln head, kiln end temperature, kiln hood negative pressure, kiln tail negative pressure, kiln hood coal scale injecting coal quantity feeds back, kiln hood coal scale injecting coal quantity is given, kiln tail coal scale injecting coal quantity feeds back, kiln tail coal scale injecting coal quantity is given, high-temperature blower speed feedback, high-temperature blower rotational speed setup, tertiary air valve open degree feedback, tertiary air valve aperture is given, dore furnace internal temperature, dore furnace head temperature (or decomposition furnace outlet temperature), kiln hood scale is fed coal total amount and is added up, kiln tail scale is fed coal total amount and is added up, two coal scales are fed coal total amount and are added up, raw material total amount is accumulative and grog total amount is accumulative.
3. industrial furnace intelligence control system according to claim 1, it is characterized in that, the former control system of described cement furnace transmits automatic regulating command signal to described industrial furnace intelligence control system, and described automatic regulating command signal comprises kiln temperature automatic regulating command signal, the automatic regulating command signal of calciner temperature, rotary kiln burning self-regulation command signal and dore furnace burning self-regulation command signal.
4. industrial furnace intelligence control system according to claim 1, it is characterized in that, the transmission of described industrial furnace intelligence control system and the signal of the former control system of described cement furnace comprise kiln hood coal scale injecting coal quantity signal, kiln tail coal scale injecting coal quantity signal, high-temperature blower tach signal, tertiary air valve opening amount signal, rotary kiln smoke-box online flue gas analyzer carbon monoxide and oxygen content signal, the online flue gas analyzer carbon monoxide of decomposition furnace outlet and oxygen content signal, coal analysis instrument signal, raw material (raw material) analyzer signal.
5. industrial furnace intelligence control system according to claim 1, it is characterized in that, the former control system of described cement furnace sends a kiln temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement furnace rotary kiln temperature for feedback signal, rotary kiln end temperature is reference signal, (its adjustable range is according to raw material output for the injecting coal quantity of automatic adjustment cement furnace kiln hood scale, the data of raw material and coal analysis instrument and determine), its kiln end temperature is controlled within limits, temperature of kiln head is stable within limits.Its temperature controlling range is determined according to produced on-site.
6. industrial furnace intelligence control system according to claim 1, it is characterized in that, the former control system of described cement furnace sends a calciner temperature automatic regulating command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with cement kiln dore furnace top or outlet temperature for feedback signal, decomposition furnace outlet online flue gas analyzer oxygen content signal as a reference, (its adjustable range is according to raw material output for the injecting coal quantity of automatic adjustment cement furnace kiln tail scale, the data of raw material and coal analysis instrument and determine), its calciner temperature is controlled within limits, its temperature controlling range is determined according to produced on-site.
7. industrial furnace intelligence control system according to claim 1, it is characterized in that, described cement furnace control system sends a rotary kiln burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system with the online flue gas analyzer of the smoke-box of cement furnace tail gather carbon monoxide do or oxygen content for feedback signal, rotary kiln negative pressure is reference signal, the rotating speed of automatic adjustment cement furnace high-temperature blower is (rotational speed regulation scope is determined according to the carbon monoxide of raw material output and the online flue gas analyzer of kiln tail smoke-box or oxygen content signal) within limits, make its rotary kiln vacuum cavitations tiny structure within-100Pa-300Pa scope, carbon monoxide content controls at below 200PPM, Control for Oxygen Content is below 2%.
8. industrial furnace intelligence control system according to claim 1, it is characterized in that, the former control system of described cement furnace sends a dore furnace burning self-regulation command signal to described industrial furnace intelligence control system, described industrial furnace intelligence control system is using the carbon monoxide measured value of dore furnace analyzer or oxygen content value as feedback signal, the aperture controlling tertiary air valve regulates within limits (adjustable range of its aperture is determined according to the CO signals of the online flue gas analyzer of raw material output Sum decomposition stove or oxygen content signal), its carbon monoxide content is made to control at below 200ppm, Control for Oxygen Content is below 2%.
9. industrial furnace intelligence control system according to claim 1, it is characterized in that, the online flue gas analyzer of described dore furnace realizes the analysis of dore furnace combustion product, with this online flue gas analyzer for feedback, and the automatic control by regulating tertiary air valve to realize dore furnace burning, the online flue gas analyzer of described kiln tail smoke-box realizes the analysis of rotary kiln smoke-box combustion product, with this online flue gas analysis for feedback, and the automatic control by regulating high-temperature blower to realize rotary kiln negative pressure and burning.
10. the adjustable range of raw material output, the online flue gas analyzer of dore furnace, rotary kiln smoke-box online flue gas analyzer determination tertiary air valve aperture, high-temperature blower rotating speed described in; Described raw material output, raw material (raw material) are detected as feedback, kiln hood scale and kiln tail scale coal property test for feedback, determine kiln hood coal scale, the adjustable range of kiln tail (dore furnace) coal scale.
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Cited By (11)
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| CN105867451A (en) * | 2016-04-18 | 2016-08-17 | 重庆大学 | Cement kiln temperature control system |
| CN105865215A (en) * | 2016-04-18 | 2016-08-17 | 重庆大学 | Temperature multi-parameter control system for cement kiln |
| CN109917762A (en) * | 2019-03-13 | 2019-06-21 | 安徽海螺集团有限责任公司 | A kind of method that quality coal in cement kiln systems secondary air temperature compensates automatically |
| CN109916187A (en) * | 2019-03-12 | 2019-06-21 | 安徽海螺集团有限责任公司 | A kind of quality coal in cement kiln systems hello coal amount automatic compensation control method |
| CN110173982A (en) * | 2019-05-15 | 2019-08-27 | 山东联合王晁水泥有限公司 | A kind of cement kiln intelligence control system |
| CN110262224A (en) * | 2019-06-27 | 2019-09-20 | 漳县祁连山水泥有限公司 | A kind of high online rate style of opening cement kiln intelligent optimization expert system |
| CN111521004A (en) * | 2020-04-11 | 2020-08-11 | 芜湖海螺水泥有限公司 | Kiln tail temperature accurate control process |
| CN111552251A (en) * | 2020-05-15 | 2020-08-18 | 中材海外工程有限公司 | Remote monitoring system for emission detection of chimney of cement plant |
| CN113587137A (en) * | 2021-08-13 | 2021-11-02 | 山东水发智慧能源有限公司 | Biomass fuel blending combustion system for biomass boiler |
| WO2022171540A1 (en) * | 2021-02-12 | 2022-08-18 | Thyssenkrupp Industrial Solutions Ag | System and method for thermally treatment of air-dispersible raw material |
| BE1029102B1 (en) * | 2021-02-12 | 2022-09-12 | Thyssenkrupp Ag | Plant and method for the thermal treatment of airworthy raw material |
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| CN1703600A (en) * | 2002-10-01 | 2005-11-30 | 维特罗环球有限公司 | Control system for controlling the feeding and burning of a pulverized fuel in a glass melting furnace |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865215A (en) * | 2016-04-18 | 2016-08-17 | 重庆大学 | Temperature multi-parameter control system for cement kiln |
| CN105865215B (en) * | 2016-04-18 | 2018-05-08 | 重庆大学 | Cement kiln temperature Multi-parameter control system |
| CN105867451A (en) * | 2016-04-18 | 2016-08-17 | 重庆大学 | Cement kiln temperature control system |
| CN109916187A (en) * | 2019-03-12 | 2019-06-21 | 安徽海螺集团有限责任公司 | A kind of quality coal in cement kiln systems hello coal amount automatic compensation control method |
| CN109916187B (en) * | 2019-03-12 | 2020-04-14 | 安徽海螺集团有限责任公司 | Automatic coal feeding amount compensation control method for cement kiln system |
| CN109917762B (en) * | 2019-03-13 | 2021-09-14 | 安徽海螺集团有限责任公司 | Method for automatically compensating secondary air temperature of cement kiln system |
| CN109917762A (en) * | 2019-03-13 | 2019-06-21 | 安徽海螺集团有限责任公司 | A kind of method that quality coal in cement kiln systems secondary air temperature compensates automatically |
| CN110173982A (en) * | 2019-05-15 | 2019-08-27 | 山东联合王晁水泥有限公司 | A kind of cement kiln intelligence control system |
| CN110262224A (en) * | 2019-06-27 | 2019-09-20 | 漳县祁连山水泥有限公司 | A kind of high online rate style of opening cement kiln intelligent optimization expert system |
| CN111521004A (en) * | 2020-04-11 | 2020-08-11 | 芜湖海螺水泥有限公司 | Kiln tail temperature accurate control process |
| CN111552251A (en) * | 2020-05-15 | 2020-08-18 | 中材海外工程有限公司 | Remote monitoring system for emission detection of chimney of cement plant |
| WO2022171540A1 (en) * | 2021-02-12 | 2022-08-18 | Thyssenkrupp Industrial Solutions Ag | System and method for thermally treatment of air-dispersible raw material |
| BE1029102B1 (en) * | 2021-02-12 | 2022-09-12 | Thyssenkrupp Ag | Plant and method for the thermal treatment of airworthy raw material |
| CN113587137A (en) * | 2021-08-13 | 2021-11-02 | 山东水发智慧能源有限公司 | Biomass fuel blending combustion system for biomass boiler |
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Application publication date: 20150805 |