EP3585749A1 - Anlage zur herstellung von zementklinker und verfahren zum betreiben einer solchen anlage - Google Patents
Anlage zur herstellung von zementklinker und verfahren zum betreiben einer solchen anlageInfo
- Publication number
- EP3585749A1 EP3585749A1 EP18706215.3A EP18706215A EP3585749A1 EP 3585749 A1 EP3585749 A1 EP 3585749A1 EP 18706215 A EP18706215 A EP 18706215A EP 3585749 A1 EP3585749 A1 EP 3585749A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- furnace
- clinker
- particle size
- size distribution
- determined
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/361—Condition or time responsive control in hydraulic cement manufacturing processes
Definitions
- the invention relates to a plant for the production of cement clinker with a control / regulating device for controlling / regulating operating parameters of the plant, and a method for operating such a plant.
- Plants for the production of cement clinker usually have a preheater, an oven and a cooler connected downstream of the oven.
- the parameters for operating the furnace such as the amount of fuel, the speed of the furnace, or the amount of raw meal to the furnace, are controlled manually or automatically.
- the properties of the clinker leaving the kiln are decisive for the adjustment of the operating parameters of the kiln, the adjoining radiator, the upstream preheater. Unfortunately, these properties are not easy to determine.
- a regulation of operating parameters as a function of the heat energy emitted by the clinker downstream of the furnace is known from DE3607261C2.
- the furnace operation is characterized by the radiation of the furnace-falling product stream and adjusted in dependence of this parameter, the fuel supply. With this parameter, the kiln operation is only parameterized very inaccurately.
- a method for operating a plant for producing cement clinker according to a first aspect comprises determining the particle size distribution of the clinker and controlling / regulating at least one operating parameter of the preheater, the furnace and / or the cooler depending on the determined particle size distribution.
- the plant for the production of cement clinker has at least one preheater for preheating the material, an oven, in particular a rotary kiln, for burning the material to clinker with a drive device for rotating the furnace and a cooler for cooling the clinker leaving the kiln.
- the particle size distribution, the mass flow and / or the temperature of the clinker is determined and controlled at least one operating parameter of the preheater, the furnace and / or the radiator depending on the determined particle size distribution and / or the determined mass flow.
- the particle size distribution of the clinker is often referred to as grain size distribution.
- the movement speed of the particles of the clinker is additionally determined.
- the particle size distribution and the movement speed are determined, for example, and the mass flow of the clinker determined therefrom.
- the temperature of the clinker is determined in addition to the particle size distribution.
- the operating parameters of the preheater, of the furnace and / or of the cooler are automatically controlled as a function of at least the particle size distribution and / or the mass flow.
- the determination of the particle size distribution and / or the mass flow of the clinker makes it possible to detect disturbances in the operation of the furnace in a simple and reliable manner. For example, an abrupt drop in the particle size distribution indicates a material closure of the furnace, whereby a sudden increase in the particle size distribution suggests that the sintering zone has accumulated.
- the particle size distribution and / or the mass flow of the clinker allows the detection of continuous disturbances of the furnace operation, which are detected in particular together with the evaluation of further operating parameters of the system.
- the particle size distribution and / or the mass flow and / or the temperature within the furnace or in the flow direction of the clinker following the furnace are determined.
- the particle size distribution and / or the mass flow within the furnace in particular in a region of the furnace outlet or in the sintering zone, preferably in a range between 0 to 1 times the clear width of the furnace inside diameter determined.
- the particle size distribution and / or the mass flow is determined following the furnace, preferably before the clinker enters the clinker cooler. This makes it possible to adjust the operating parameters of the cooler following the furnace as a function of the clinker properties which were determined directly in the direction of flow of the clinker upstream of the cooler.
- Faults in the furnace operation can be determined very reliably by an analysis of the particle size distribution and / or the mass flow, so that a corresponding regulation / control of the system, in particular the firing device of the furnace , the preheater and / or the radiator, for example, can be done automatically.
- the particle size distribution and / or the mass flow or the temperature of the clinker are determined by means of an optical measuring method.
- the optical measurement method is based on an evaluation of near-, medium- and long-wave infrared radiation (NIR, MI R and FIR).
- the optical sensor comprises, for example, a camera, in particular a high-resolution (HD) camera.
- the camera is designed such that it determines the particle size distribution and / or the mass flow by means of the visible to the human eye light range with a wavelength between 400 - 700nm.
- the particle size distribution and / or the mass flow are determined, for example, by means of a laser measurement method.
- the particles having a particle size greater than 1 mm, preferably greater than 10 mm, most preferably greater than 20 mm for evaluating the particle size distribution and / or Mass flow, in particular the speed of movement of the particles are used.
- Particles with a smaller particle size are preferably not detected by the particle sensor.
- the preheater has according to another embodiment, a fan, wherein an operating parameter of the preheater, the speed of the fan comprises.
- the fan is arranged, for example, in the region of the gas outlet of the preheater or downstream of the gas outlet. About the speed or flap position of the fan, the flow rate of the gas within the preheater and necessary for the combustion can be removed from the radiator combustion air quantity.
- the speed of the fan is controlled / regulated so that the furnace and calciner fuel supplied to a sufficient amount of combustion air is available.
- An operating parameter of the furnace includes the fuel supply to the furnace and / or the speed of the furnace.
- the fuel supply to the furnace and the speed of the furnace have an influence on the temperature within the furnace, the buildup and the properties of the clinker fired in the furnace.
- An operating parameter of the furnace also includes, for example, the flame length or the diameter of the flame of the burner of the furnace.
- the flame length and / or the diameter of the flame is set via mechanical adjusting mechanisms on the burner mime, for example by means of nozzles or swirling bodies, such as disks with inclined plates.
- Another operating parameter of the furnace includes the amount of primary air supplied to the burner. Control of these parameters allows rapid intervention in the furnace process in the event of a fault or set point deviations from kiln operation parameters of the kiln operation.
- the chemical composition of the raw meal is determined upon entry into or within the preheater.
- the fuel supply to the furnace is changed in particular in response to falling below a certain threshold value of the particle size distribution or the mass flow.
- the clinker is transported according to a further embodiment along the radiator with a conveying speed and cooled by means of a cooling air flow, wherein an operating parameter of the radiator is the conveying speed and / or the cooling air flow.
- the cooler has at least one conveyor bottom, on which rests the clinker to be cooled and flows through the cooling air flow for cooling.
- a control / regulation of the conveying speed has an influence on the residence time of the clinker within the cooler. If, for example, a coarse particle size distribution and / or a low mass flow of the clinker is determined by means of the particle sensor, the conveying speed is reduced, so that the residence time of the clinker in the cooler is increased and the clinker is optimally cooled at the outlet from the cooler.
- the time required for cooling the clinker residence time in the cooler is controlled according to a further embodiment, depending on the particle size distribution and / or the mass flow / regulated. This leads to a homogenization of the amount of heat supplied to the furnace and in particular prevents damage to the radiator of the following components of the system by high temperature loads.
- the air pressure within the cooler is determined according to a further embodiment by means of a pressure sensor, wherein the conveying speed and / or the cooling air flow is controlled / regulated as a function of the determined air pressure signal.
- a pressure measuring device is used which is designed to evaluate measured pressure measuring signals having a frequency of more than 1 Hz, in particular more than 10 Hz, preferably more than 100 Hz, and to determine the fluctuation range of the measuring signals.
- the change in the clinker granulometry of the clinker resting on the conveyor bottom of the cooler is preferably determined from the fluctuation range of the measuring signals of the pressure sensor.
- the pressure sensor is arranged in particular below the conveyor floor and in the flow direction of the cooling air flow in front of the conveyor floor. A pressure measurement within the cooler allows an optimal adjustment of the operating parameters of the cooler as a function of the determined particle size distribution and 7 or of the determined mass flow.
- the plant for the production of cement clinker has, according to a further embodiment, a comminution device downstream of the furnace with a crushing gap and / or a plurality of sieve gaps, wherein at least one of the sieve or crushing gaps of the comminuting device is adjusted as a function of the determined particle size distribution and / or the mass flow of the clinker becomes.
- the comminuting device is, for example, a crusher or a grinder, which is arranged, for example, inside the cooler or in the connection of the cooler.
- the invention further comprises a plant for producing cement clinker comprising a preheater for preheating material, a furnace for burning the material to clinker with a drive means for rotating the furnace and a cooler for cooling the clinker leaving the furnace, the plant a particle sensor for determining the particle size distribution of the clinker and a control / regulating device, which is designed such that it controls at least one operating parameter of the preheater, the rotary kiln and / or the radiator depending on the determined particle size distribution.
- the particle sensor for determining the particle size distribution and / or the mass flow of the clinker is formed and a control / regulating device is designed such that it at least one operating parameter of the preheater, the rotary kiln and / or the cooler depending on the determined particle size distribution, the determined mass flow and / or the determined temperature controls.
- the particle sensor is arranged outside the furnace in such a way that the region within the furnace or in the flow direction of the clinker following the furnace can be detected by the particle sensor.
- the furnace has a disk, in particular a quartz glass disk, through which the particle sensor analyzes the interior of the furnace.
- the particle sensor has, for example, a cooling device for cooling the particle sensor, so that it is protected from the furnace waste heat.
- the particle sensor is at least partially disposed within the furnace, wherein the particle sensor comprises glass fibers, which in particular have a cooling device.
- the particle sensor comprises an optical measuring device, in particular a laser measuring device or a device for detecting infrared light and / or visible light.
- the device is, for example, a camera.
- the system has, for example, at least two oxygen sensors, for example, in the preheater and / or the oven for determining the oxygen content of the gas flowing through the preheater, wherein the oxygen sensor is arranged in particular in the calciner, between the second and third cyclone stage and / or at the gas outlet of the preheater is.
- the determined by means of the oxygen sensor oxygen content of the gas is transmitted to the control / regulating device and used to control / regulate operating parameters of the system.
- the speed of the fan is controlled / regulated in response to the determined oxygen content.
- the furnace has, according to a further embodiment, a rotational speed sensor for determining the furnace rotational speed.
- the rotational speed of the furnace is preferably adjustable by means of the drive device, in particular by means of the electrical power of the drive device.
- the electrical power of the drive device is transmitted to the control / regulating device and used to control / regulate operating parameters of the system.
- the electrical power is, for example, a measure of the deposit formation and the amount of substance contained in the furnace and therefore offers a reliable possibility, together with the particle size distribution and / or the mass flow, to detect a fault of the furnace.
- the electrical power of the drive device is determined on a frequency converter upstream of the drive device.
- the cooler has, according to a further embodiment, at least one pressure sensor for determining the air pressure within the cooler.
- the cooler has at least one temperature sensor for determining the temperature of the cooler exhaust air.
- the determined temperature and / or the determined pressure in particular the fluctuation range of the pressure signal, transmitted to the control / regulating device and used to control / regulate operating parameters of the system.
- Fig. 1 shows a plant for the production of cement, in particular cement clinker, with a control / regulating device according to one embodiment.
- FIG. 1 shows a plant 10 for the production of cement, in particular cement clinker, with a preheater 12 having a plurality of cyclones.
- FIG. 1 shows four cyclone stages 14 - 20 through which the raw material 24 passes.
- the material is preheated in particular.
- the first cyclone stage 14 designates the cyclone stage 14 arranged upstream of the inlet into the furnace 22, the last cyclone stage being arranged at the outlet of the preheater.
- the exhaust gases of the furnace 22 flow through the preheater 12 in countercurrent to the material flow direction, so that a heating of the material takes place, wherein the furnace exhaust gas is withdrawn from the preheater 12 by a fan 28.
- the fan 28 of the preheater 12 is arranged in the figure by way of example downstream of the preheater outlet. It is also conceivable to arrange the fan 28 within the preheater 12.
- a calciner 26 is arranged, in which the material is at least partially deacidified by means of an additional supply of fuel, possibly also by combustion of fuel in a combustion chamber.
- the furnace 22 is in particular a rotary kiln which is rotatable about its longitudinal axis.
- a drive device 30 is arranged for driving the furnace 22 in rotation.
- the furnace 22 is disposed slightly inclined to the horizontal, so that the material in combination with the rotation of the furnace 22 about the longitudinal axis, is moved in the direction of the Ofenauslasses 32.
- the oven further includes a firing device 34 and an air supply 36. Primary air, for example ambient air, is fed to the firing device 34 via the air supply 36.
- the oven 22 is followed by a cooler 38 in the flow direction of the material.
- the cooler 38 is a two-stage cooler having a first cooling stage and having a stationary ventilation floor 40 located below the oven outlet 32. so that the clinker fired in the furnace 22 falls on the stationary ventilation floor 40.
- the ventilation floor 40 is arranged at an angle of about 10 ° to 35 ° to the horizontal, so that the clinker is gravity transported along the stationary ventilation floor 40.
- the ventilation floor 40 is, for example, a grate through which cooling air flows.
- a cooling fan 42 is arranged below the ventilation floor. The ventilation air flowing through the ventilation floor 40 and heated cooling air is then at least partially fed through the oven outlet 32 to the furnace 22 as so-called secondary air.
- the first cooling stage further comprises a conveyor floor 44 which adjoins the stationary ventilation floor 40 and has a floor, such as a grate, and a conveyor for transporting the clinker along the floor 44.
- the conveying floor 44 is, for example, a sliding floor which operates on the "walking floor” principle, and the conveying floor 44 is also flowed through by cooling air which flows through the conveyor floor by means of the at least one cooling fan 46 arranged below the conveying floor 44.
- the cooler 38 also has a second cooling stage, which is arranged below the first cooling stage, with a further conveying floor 48 which, for example, corresponds to the conveying floor 44 of the first cooling stage and likewise flows through cooling air of the cooling fans 46.
- a further conveying floor 48 which, for example, corresponds to the conveying floor 44 of the first cooling stage and likewise flows through cooling air of the cooling fans 46.
- four cooling fans are shown in the figure, the number of which may differ.
- the cooling fans 46 are connected to a common radiator control 68 that is configured to control the speed of the cooling fans 46.
- cooling fan 42 is not connected in the illustrated embodiment with thedeer horrung- / regulation 68 and is operated, for example, with a constant, comparatively high specific amount of gas, so that the entering into the radiator 38 clinker cooled by the cooling fan sufficiently fast is set to a sufficiently high Alitgehalt in the clinker.
- the further conveying floor 48 is arranged below the conveying floor 44 of the first cooling stage such that cooled clinker falls on the further conveying floor 48 in the first cooling stage.
- a comminution device in particular a crusher 50, is arranged, which comminutes the clinker cooled in the first cooling stage before feeding it to the second cooling stage.
- the cooler 38 further has a line, in particular tertiary air line 52, which connects the cooler 38 with the caicinator 26 of the preheater 12 and supplies the so-called tertiary air to the caicinator 26.
- the guided to the Caicinator 26 teritary air comprises at least partially the heated by the second cooling stage and the conveyor bottom 44 of the first cooling stage cooling air.
- a radiator exhaust air line 74 is arranged, via which the air heated in the radiator 38 leaves the radiator 38.
- the system 10 further includes a plurality of sensors. For example, three oxygen sensors 56, 58, 60 for determining the oxygen content of the gas flowing through the preheater 12 are arranged in the preheater 12.
- the first oxygen sensor 56 is disposed in the kiln inlet and determines the oxygen content of the gas entering the calciner from the kiln.
- the second oxygen sensor 58 is disposed downstream of the second cyclone stage 16 in the flow direction of the gas and determines the oxygen content of the gas between the second and third cyclone stages 16, 18.
- the third oxygen sensor 60 is in the flow direction of the gas downstream of the last cyclone stage 20 and upstream of the fan 28th arranged and determines the oxygen content of the exiting the preheater 12 gas.
- the furnace 22, in particular the drive device 30 of the furnace 22, has a rotational speed sensor which determines the rotational speed of the furnace 22. Furthermore, within the furnace 22, a particle sensor 62 is arranged. The particle sensor 62 determines the particle size distribution of the clinker, the mass flow, in particular the speed of movement of the particles, and / or the temperature of the clinker. The particle sensor determines the mass flow of clinker within the furnace 22. For example, the number of particles per unit time, in particular second determined.
- the particle sensor 62 for example, outside the furnace 22 is mounted so that it beaob screw the interior of the furnace, for example, the sintering area, the area of the Ofenauslasses 32, preferably the range between 0 to 1 times the inner diameter of the furnace, and there the particle size distribution and / or Mass flow determined. It is also conceivable to arrange the particle sensor downstream of the furnace outlet 32, between the furnace outlet 32 and the cooler 38 or at the inlet into the comminuting device 50.
- the particle sensor 62 is, for example, an optical sensor, preferably a laser sensor, which determines the particle size, the movement speed and / or the temperature of the clinker by means of an optical measuring method.
- the optical measuring method is based on an evaluation of near-, medium- and long-wave infrared radiation (NIR, MIR and FIR).
- the optical sensor can also comprise a camera, in particular a high-resolution (HD) camera, which measures in the visible light range.
- HD high-resolution
- the particles preferably having a particle size greater than 1 mm, preferably greater than 10 mm, most preferably greater than 20 mm being used for evaluating the particle size distribution and / or the speed of movement of the particles become.
- two pressure sensors 64, 66 for determining the air pressure within the radiator are arranged in the radiator 38.
- a first pressure sensor 64 is disposed below the stationary ventilation floor 40 to determine the air pressure below the stationary ventilation floor 40.
- a second pressure sensor is arranged below the conveying floor 44 of the first cooling stage in order to determine the air pressure below the conveying floor 44.
- the pressure sensors 64, 66 are high-frequency sensors, by means of which measuring signals with more than 1 Hz, especially with more than 10 Hz, preferably more than 100 Hz are evaluable.
- the fluctuation ranges of the measurement signals can be detected by means of the pressure sensors 64, 66, the clinker granulometry being determined from the fluctuation widths of the measurement signals.
- the fluctuation range of the pressure values determined with the pressure sensors 64, 66 is a measure of the air resistance of the clinker resting on the stationary ventilation floor 40 or the conveyor floor 44, so that the clinker granulometry can be determined from this value.
- a temperature sensor 70 is provided which determines the temperature of the tertiary air.
- the temperature sensor 70 is arranged at the inlet of the cooler exhaust air into the tertiary air line 52 within the radiator. It is also conceivable to arrange the temperature sensor 70 within the tertiary air line 52.
- Another temperature sensor 72 is disposed at the furnace outlet within the radiator to determine the temperature of the tertiary air entering the furnace 22.
- the system 10 furthermore has a control / regulation device 54, which is designed such that it controls / regulates at least one operating parameter of the preheater, of the rotary kiln or of the cooler.
- a control / regulation device 54 which is designed such that it controls / regulates at least one operating parameter of the preheater, of the rotary kiln or of the cooler.
- control / regulation signals are shown in the figure, but not the input variables entering the control / regulation device 54.
- the sensors described above namely the oxygen sensors 56, 58, 60, the rotational speed sensor, the particle sensor 62, the pressure sensors 64, 66 and the temperature sensor 70, 72 are connected to the control / regulating device 54, so that the data determined by means of the sensors Control / regulating device 54 are supplied.
- further process data such as the chemical composition of the fuel charged into the furnace 22 or the raw meal fed into the preheater, or the power supplied to the drive device 30 are transmitted to the control device 54.
- the controller 54 communicates with the radiator controller 68, the driver 30, a fuel supply to the oven 22, and / or the fan 28 of the preheater 12 such that the speed of the radiator fans 46, the speed of the oven 22, the fuel supply to the furnace, the conveying speed of the conveying bottoms 44, 48 of the cooler 38 and / or the rotational speed of the fan 28 of the preheater 12 by means of the control / regulating device 54 is controllable / controllable.
- the fuel quantity is transferred to the calciner 26 and / or the furnace 22
- Control / regulating device 54 increases. If the heated raw meal has a constant degree of deacidification and decreases the clinker temperature within the furnace, in particular within the sintering zone, the fuel supply to the furnace 22 is increased by the controller 54.
- a decrease in particle size distribution means a decrease in the number of large clinker particles, which is an indicator of too low a fuel supply to the furnace 22 or caicinator 26, if the chemical composition of the raw meal with certain variations in lime content, alumina and silicate modulus is substantially constant is. This may, for example, cause the batch in the sintering zone of the furnace 22 to collapse, partially or completely, thereby causing disruptions to the overall process of cement clinker production, which may cause short-term lost production or longer downtime. An automatic response to the reduction in the number of coarse particles reliably prevents such interference.
- the particle size distribution exceeds a predetermined threshold value, for example an upper threshold value of the positional parameter of a predetermined state determined by means of an RRSB distribution, and the electric current supplied to the drive device 30 exceeds a specific threshold value, the fuel quantity to the furnace 22 is reduced by the control device 54.
- a predetermined threshold value for example an upper threshold value of the positional parameter of a predetermined state determined by means of an RRSB distribution
- the electric current supplied to the drive device 30 exceeds a specific threshold value
- the fuel quantity to the furnace 22 is reduced by the control device 54.
- An increased current at the drive means 30 of the furnace is a measure of a high degree of buildup within the furnace 22, resulting from too large an amount of fuel within the furnace 22. If the particle size distribution falls below a predetermined threshold value and the electric current supplied to the drive device 30 falls below a certain threshold value, the fuel quantity to the furnace 22 is increased by the control device 54.
- the conveying speed of the conveying bottoms 46, 48 of the cooler 38 is reduced. In particular, only the conveying speed of a part of at least one conveying floor 46, 48 is reduced. With such a control / regulation of the conveying speed is prevented that the temperature, in particular of the fine fraction of the clinker, is too high at the exit from the clinker and can damage further downstream of the cooler 38 components of the system 10.
- the radiator 38 is divided in the conveying direction of the clinker into a plurality of chambers, each having a cooling fan 46. If the mass flow determined by means of the particle sensor 62, in particular the speed of movement of the particles, drops by a certain threshold value, for example by more than 2-10%, in particular 5% in a time interval of 60 seconds, and has the pressure signal determined by means of a pressure sensor 64, 66 at least one Chamber a small deviation from the mean pressure value, the air flow is reduced by the radiator 38, in particular following the stationary ventilation floor. For this purpose, the speed of the cooling fans 46 is preferably reduced.
- the residence time necessary for cooling the clinker in the cooler is determined by means of the determined particle size distribution and / or the mass flow, wherein from the residence time the necessary layer height of the clinker on the conveyor trays and the necessary air flow can be determined. It is furthermore conceivable to set the crushing gap of the comminuting device 50 as a function of the particle size determined by means of the particle sensor, so that the material is optimally cooled in the second cooling stage.
- the particle size distribution falls short of a further, in particular very low, threshold value, the particle size is so small that it can no longer be determined with the particle sensor 62, or if the particle size distribution decreases, the rotational speed of the furnace 22 is increased by the control / regulation device 54, in particular to one Minimized speed, for example, 0.5 rpm, and, for example, simultaneously increases the amount of fuel to the furnace 22.
- the particle size distribution drops to a minimum value or decreases to near zero when a so-called meal shortage results from the dissolution of very large lumps or deposits of material in the cyclone preheater.
- Another indicator of such a meal closure is an abrupt increase in the temperature within the oven, in particular within the sintering zone of the oven by, for example, 50 ° C per minute.
- a reduction in the speed of the oven 22 may result in a subsequent closure of undesirable operating conditions, such as, e.g. reliably limit high dust cycles over a long service life associated with poor clinker quality.
- the furnace rotational speed is likewise reduced by the control / regulation device 54 to a predetermined, in particular minimum, rotational speed value.
- the fuel supply to the furnace 22 is reduced to a minimum value.
- the mass flow of the clinker increases by a certain threshold, for example more than 2-10%, in particular more than 5% in a time interval of, for example, 60 seconds and more than one of the following conditions is met: a) the temperature of the clinker at the kiln outlet of the clinker Oven 22 sinks
- the air pressure signal determined by means of at least one pressure sensor 64, 66 within the cooler 38 has a high deviation from an average value
- the amount of fuel to the furnace 22 and, consequently, the speed of the fan 28 of the preheater 12 is increased by means of the controller 54.
- the mass flow of the clinker drops by a certain threshold, for example less than 2-10%, in particular less than 5% in a time interval of, for example, 60 seconds, and more than one of the following conditions is met: a) The temperature of the clinker at the furnace outlet of the furnace 22 is rising
- the detected by at least one pressure sensor 64, 66 within the radiator 38 air pressure signal has a small deviation from an average on the amount of fuel to the furnace 22 and, consequently, the speed of the fan 28 of the preheater 12 by means of the control / regulating device 54th reduced.
- a determination of the particle size distribution and / or the mass flow within the furnace offers the possibility of a simple detection of certain disturbances in the system, in particular in the oven, which can be remedied by means of a control / regulation of certain operating parameters of the system.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017202824.6A DE102017202824A1 (de) | 2017-02-22 | 2017-02-22 | Anlage zur Herstellung von Zementklinker und Verfahren zum Betreiben einer solchen Anlage |
| PCT/EP2018/053116 WO2018153678A1 (de) | 2017-02-22 | 2018-02-08 | Anlage zur herstellung von zementklinker und verfahren zum betreiben einer solchen anlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3585749A1 true EP3585749A1 (de) | 2020-01-01 |
Family
ID=61249618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18706215.3A Withdrawn EP3585749A1 (de) | 2017-02-22 | 2018-02-08 | Anlage zur herstellung von zementklinker und verfahren zum betreiben einer solchen anlage |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3585749A1 (de) |
| DE (1) | DE102017202824A1 (de) |
| WO (1) | WO2018153678A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11718559B2 (en) * | 2019-03-15 | 2023-08-08 | Gpcp Ip Holdings Llc | Closed loop control with camera detection of pebble size of lime particles to ameliorate lime kiln ringing and improve uptime and operating efficiency |
| WO2021148267A1 (de) | 2020-01-20 | 2021-07-29 | Thyssenkrupp Industrial Solutions Ag | Thermische behandlung von mineralischen rohstoffen mit einem mechanischen wirbelbettreaktor |
| DE102020200604A1 (de) | 2020-01-20 | 2021-07-22 | Thyssenkrupp Ag | Vorrichtung und Verfahren zur Herstellung von Zementklinker |
| DE102020200602A1 (de) | 2020-01-20 | 2021-07-22 | Thyssenkrupp Ag | Thermische Behandlung von mineralischen Rohstoffen mit einem mechanischen Wirbelbettreaktor |
| WO2021148266A1 (de) | 2020-01-20 | 2021-07-29 | Thyssenkrupp Industrial Solutions Ag | Vorrichtung und verfahren zur herstellung von zementklinker |
| LU101613B1 (de) | 2020-01-20 | 2021-08-06 | Thyssenkrupp Ag | Thermische Behandlung von mineralischen Rohstoffen mit einem mechanischen Wirbelbettreaktor |
| LU101612B1 (de) | 2020-01-20 | 2021-08-05 | Thyssenkrupp Ind Solutions Ag | Vorrichtung und Verfahren zur Herstellung von Zementklinker |
| LU101611B1 (de) | 2020-01-20 | 2021-08-05 | Thyssenkrupp Ind Solutions Ag | Vorrichtung und Verfahren zur Herstellung von Zementklinker mit einem mechanischen Wirbelbettreaktor |
| DE102020200605A1 (de) | 2020-01-20 | 2021-07-22 | Thyssenkrupp Ag | Vorrichtung und Verfahren zur Herstellung von Zementklinker mit einem mechanischen Wirbelbettreaktor |
| EP3911615B1 (de) * | 2020-04-08 | 2022-07-13 | thyssenkrupp Industrial Solutions AG | Verfahren zur herstellung von zementklinker |
| DE102023121079A1 (de) * | 2023-08-08 | 2025-02-13 | Khd Humboldt Wedag Gmbh | Verfahren zur Herstellung von Zementklinker mit Verarbeitung von anfallendem Kohlendioxid zu Methanol |
| CN117466557B (zh) * | 2023-12-26 | 2024-03-08 | 凯盛(漳州)新能源有限公司 | 一种节能环保熟料煅烧预热装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1408996B2 (de) * | 1960-09-24 | 1970-09-10 | Rheinische Kalksteinwerke GmbH, 5603 Wulfrath | Verfahren zur automatischen Steuerung eines Wanderrostkühlers |
| US3469828A (en) * | 1967-10-30 | 1969-09-30 | Gen Electric | Method and apparatus for cement kiln control |
| DE2507840C3 (de) | 1975-02-24 | 1980-04-17 | Kloeckner-Humboldt-Deutz Ag, 5000 Koeln | Regelverfahren für die Zementherstellung im Drehrohrofen und Regelvorrichtung |
| FR2578834B1 (fr) | 1985-03-13 | 1992-01-03 | Fives Cail Babcock | Procede et dispositif de conduite d'une installation de fabrication de clinker de ciment |
| GB2227301A (en) * | 1989-01-18 | 1990-07-25 | Smidth & Co As F L | Method and apparatus for producing cement clinker |
| EP1518839A1 (de) | 2003-09-24 | 2005-03-30 | Powitec Intelligent Technologies GmbH | Verfahren zum Betrieb einer Zementproduktionsanlage |
-
2017
- 2017-02-22 DE DE102017202824.6A patent/DE102017202824A1/de not_active Ceased
-
2018
- 2018-02-08 WO PCT/EP2018/053116 patent/WO2018153678A1/de not_active Ceased
- 2018-02-08 EP EP18706215.3A patent/EP3585749A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017202824A1 (de) | 2018-08-23 |
| WO2018153678A1 (de) | 2018-08-30 |
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