CN220186869U - Cement kiln decomposing furnace outlet temperature control system - Google Patents
Cement kiln decomposing furnace outlet temperature control system Download PDFInfo
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- CN220186869U CN220186869U CN202320733962.2U CN202320733962U CN220186869U CN 220186869 U CN220186869 U CN 220186869U CN 202320733962 U CN202320733962 U CN 202320733962U CN 220186869 U CN220186869 U CN 220186869U
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- 239000004568 cement Substances 0.000 title claims abstract description 37
- 239000003245 coal Substances 0.000 claims abstract description 68
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 230000003993 interaction Effects 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Abstract
The utility model provides a cement kiln decomposing furnace outlet temperature control system which comprises a first rotor scale, a second rotor scale, a temperature sensor and a controller, wherein the feeding end of the first rotor scale is connected with a pulverized coal bin through a first feeder, and the discharging end of the first rotor scale is connected with the decomposing furnace coal feeding end; the feeding end of the second rotor scale is connected with the pulverized coal bin through a second feeder, and the discharging end of the second rotor scale is connected with the coal feeding end of the decomposing furnace; the temperature sensor is arranged at the outlet of the decomposing furnace and is electrically connected with the controller through the signal transmitter; the controller is electrically connected with the first rotor scale through the first frequency converter and is electrically connected with the second rotor scale through the second frequency converter; the controller controls the start and stop of the first rotor balance and/or the second rotor balance and the coal feeding quantity. By adopting the technical scheme of the utility model, the stable control of the outlet temperature of the decomposing furnace can be realized, and the stable operation of the cement production system is ensured.
Description
Technical Field
The utility model relates to the technical field of cement production equipment, in particular to a temperature control system for an outlet of a cement kiln decomposing furnace.
Background
In the cement production process, the outlet temperature of a cement clinker firing decomposition furnace (hereinafter referred to as a decomposition furnace) is one of key technological parameters of dynamic balance of a thermal system in the novel dry cement firing process, and the outlet temperature of a stable decomposition furnace is an important condition for ensuring stable production, high-quality production and coal consumption reduction of a clinker production line.
At present, the stability of the outlet temperature of the decomposing furnace is mostly realized by adopting a PID automatic control function, and the specific control mode is that the outlet temperature of the decomposing furnace is taken as a controlled parameter, the tail coal feeding quantity (tail coal rotor balance flow) of the decomposing furnace is taken as a control parameter, the two are in PID closed loop control, the outlet temperature of the decomposing furnace is taken as a feedback value, the PID control module automatically calculates and outputs an adjusting quantity according to the temperature difference between a set temperature value and the actually measured temperature value of the outlet of the decomposing furnace, and generates a coal feeding quantity control signal output value rotor balance according to the adjusting quantity so as to adjust the coal feeding quantity of the rotor balance, so that the actually measured temperature is continuously close to the set temperature, and the automatic control of the stability of the outlet temperature of the decomposing furnace is realized.
Because the on-site working condition of cement production changes greatly, the situation that the temperature difference between the measured temperature of the outlet of the decomposing furnace and the set temperature value is large is unavoidable, and at the moment, the PID control module outputs a large regulating quantity, so that the measured temperature of the outlet of the decomposing furnace reaches the set temperature value as soon as possible, and even the large temperature difference under extreme conditions can lead the actual coal feeding quantity to reach the maximum range or the minimum range, PID oscillation and imbalance are easy to be caused, the outlet temperature of the decomposing furnace is unstable, even the whole production system is unstable, production accidents are caused, and the normal production operation of the cement production system is influenced.
Disclosure of Invention
The embodiment of the utility model provides a cement kiln decomposing furnace outlet temperature control system, which is used for realizing stable control of the decomposing furnace outlet temperature and ensuring stable operation of a cement production system.
The outlet temperature control system of the cement kiln decomposing furnace adopts the following technical scheme:
the outlet temperature control system of the cement kiln decomposing furnace comprises a first rotor scale, a second rotor scale, a temperature sensor and a controller, wherein the feeding end of the first rotor scale is connected with a pulverized coal bin through a first feeder, and the discharging end of the first rotor scale is connected with the coal feeding end of the decomposing furnace; the feeding end of the second rotor scale is connected with the pulverized coal bin through a second feeder, and the discharging end of the second rotor scale is connected with the coal feeding end of the decomposing furnace; the temperature sensor is arranged at the outlet of the decomposing furnace and is electrically connected with the controller through a signal transmitter, and the temperature sensor sends detected temperature data of the outlet of the decomposing furnace to the controller through the signal transmitter; the controller is electrically connected with the first rotor scale through the first frequency converter and is electrically connected with the second rotor scale through the second frequency converter; the controller generates a control instruction according to the received temperature data and sends the control instruction to the first frequency converter and/or the second frequency converter so as to control the start and stop of the first rotor balance and/or the second rotor balance and the coal feeding quantity.
Optionally, the controller is further electrically connected to driving mechanisms of the first feeder and the second feeder, respectively.
Optionally, the load sensor and the speed sensor of the first rotor scale are respectively electrically connected with the controller through the signal transmitter, and respectively send the detected weight data and the detected rotation speed data to the controller.
Optionally, the load sensor and the speed sensor of the second rotor scale are respectively and electrically connected with the controller through signal transmitters, and respectively send the detected weight data and the detected rotation speed data to the controller.
Optionally, the first frequency converter and the second frequency converter are disposed within the power distribution room.
Optionally, the system further comprises a manual interaction device, wherein the manual interaction device is electrically connected with the controller, and the controller further generates a control instruction according to the operation of the user based on the manual interaction device.
Optionally, the manual interaction device comprises a computer or a touch screen.
Optionally, the system further comprises an alarm, and the alarm is electrically connected with the controller.
Optionally, the controller calculates a target coal feeding amount according to the received temperature data, and when the target coal feeding amount is lower than the maximum range of the first rotor scale, the controller controls the first rotor scale to operate with the target coal feeding amount as a target flow; when the target coal feeding amount exceeds the maximum range of the first rotor balance, the second rotor balance is controlled to operate with the difference value between the target coal feeding amount and the maximum range of the first rotor balance as the target flow.
Optionally, the controller controls the shutdown standby second rotor scale to start running when the first rotor scale running currently fails.
The beneficial effects of the utility model are as follows:
in the temperature control system for the outlet of the cement kiln decomposing furnace, provided by the embodiment of the utility model, two sets of feeders and rotor scales are arranged between the pulverized coal bin and the decomposing furnace to form redundant coal feeding equipment, and temperature sensors and controllers are arranged to perform temperature monitoring and feedback control, so that the coal feeding quantity of the rotor scales can be correspondingly controlled according to the temperature detection data of the outlet of the decomposing furnace, and when the temperature difference between the actual temperature of the outlet of the decomposing furnace and the set temperature is large in the actual working condition, the two rotor scales can be controlled to operate simultaneously to stabilize PID control, PID oscillation and the like are avoided, thereby realizing stable control of the outlet temperature of the decomposing furnace, and being beneficial to improving the production stability of the decomposing furnace and the production quality of cement clinker.
When the rotor scale in current operation fails, the rotor scale can be controlled to stop for standby operation, so that the coal feeding amount of the decomposing furnace is ensured; the feeder is arranged between the pulverized coal bin and the rotor scale to pre-feed pulverized coal, so that the pulverized coal can stably and continuously enter the rotor scale, and the rotor scale can stably operate; the frequency converter and the rotor scale are arranged separately, so that the frequency converter can be prevented from being failed due to the influence of cement production operation environment, thereby avoiding the influence of equipment failure on cement production and ensuring the stable operation of a cement production system.
The temperature control system for the outlet of the cement kiln decomposing furnace has the characteristics of reliable performance, convenient use, lower cost and the like.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a temperature control system for an outlet of a decomposing furnace of a cement kiln according to an embodiment of the utility model.
Reference numerals:
1. a coal dust bin; 2. a first feeder; 3. a first rotor scale; 4. a second feeder; 5. a second rotor scale; 6. a decomposing furnace; 7. a temperature sensor; 8. a signal transmitter; 9. a controller; 10. a touch screen; 11. a first frequency converter; 12. a second frequency converter; 13. an alarm.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model can be practiced in many other ways than those herein described and similar modifications can be made by those skilled in the art without departing from the spirit of the utility model, and therefore the utility model is not limited to the practice of the substrate disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the outlet temperature control system of the cement kiln decomposing furnace in the embodiment of the utility model comprises a first rotor scale 3, a second rotor scale 5, a temperature sensor 7 and a controller 9; the feeding end of the first rotor scale 3 is connected with the pulverized coal bin through the first feeder 2, and the discharging end is connected with the coal feeding end of the decomposing furnace; the feeding end of the second rotor scale 5 is connected with the pulverized coal bin through a second feeder 4, and the discharging end is connected with the coal feeding end of the decomposing furnace; the temperature sensor 7 is arranged at the outlet of the decomposing furnace, the temperature sensor 7 is electrically connected with the controller 9 through the signal transmitter 8, and the temperature sensor 7 sends detected temperature data of the outlet of the decomposing furnace to the controller 9 through the signal transmitter 8; the controller 9 is electrically connected with the first rotor balance 3 through a first frequency converter 11 and is electrically connected with the second rotor balance 5 through a second frequency converter 12; the controller 9 generates a control command according to the received temperature data and sends the control command to the first frequency converter 11 and/or the second frequency converter 12 so as to control the start and stop of the first rotor balance 3 and/or the second rotor balance 5 and the coal feeding quantity.
The cement production system generally comprises a pulverized coal bin, a decomposing furnace 6, a rotary kiln and other devices, wherein the pulverized coal bin is connected with a head coal feeding end and a tail coal feeding end of the decomposing furnace 6 through coal feeding devices, and pulverized coal is conveyed into the decomposing furnace 6. According to the exemplary embodiment of the utility model, the tail coal feeding amount is used as the control amount for adjusting the outlet temperature of the decomposing furnace, and redundant coal feeding equipment and temperature monitoring equipment are arranged, specifically, a first feeder 2 and a first rotor scale 3 are connected between a pulverized coal bin and the tail coal feeding end of the decomposing furnace to form a main tail coal feeding mechanism; the second feeder 4 and the second rotor scale 5 are connected between the pulverized coal bin and the tail coal feeding end of the decomposing furnace to form an auxiliary tail coal feeding mechanism. The temperature sensor 7 and the signal transmitter 8 form temperature monitoring equipment, detected temperature data of the outlet of the decomposing furnace are sent to the controller 9, and a temperature feedback control mechanism is formed by the temperature sensor and the signal transmitter 8 and the controller 9.
The first feeder 2 and the second feeder 4 are pre-feeding devices, and may be specifically a rotor feeder or a screw feeder, etc., where the first feeder 2 and the second feeder 4 are respectively connected between a discharge end of the pulverized coal bin 1 and a feed inlet of the first rotor scale 3 and the second rotor scale 5, and pulverized coal flowing out of the discharge end of the pulverized coal bin 1 enters the first rotor scale 3/the second rotor scale 5 under the conveying of the first feeder 2/the second feeder 4. The feeder is arranged between the pulverized coal bin and the rotor scale for pre-feeding, so that pulverized coal in the pulverized coal bin stably and continuously enters the rotor scale, and the rotor scale can stably run. Here, the first feeder 2 and the second feeder 4 may be identical.
The first rotor balance 3 and the second rotor balance 5 can be powder rotor balances, and can specifically comprise a cylinder, a driving motor, a load sensor, a rotor impeller, a speed measuring sensor and the like, after coal powder enters the rotor balance cylinder, the rotating rotor impeller scrapes the coal powder to a discharge end, and the coal powder enters a tail coal feeding end of the decomposing furnace from the discharge port under the action of gravity and/or micro negative pressure. Here, the first rotor scale 3 and the second rotor scale 5 may be identical. In the running process of the rotor balance, the load sensor collects weight data signals of coal dust passing through the cylinder, the speed sensor collects rotating speed data signals of the rotor, the first rotor balance 3 comprises the load sensor and the speed sensor, the second rotor balance 5 comprises the load sensor and the speed sensor, the load sensor and the speed sensor are electrically connected with the controller 9 through the signal transmitter 8, and the collected weight signals and rotating speed signals are sent to the controller 9 through the signal transmitter 8. The controller 9 may perform PID control on the first rotor balance 3 and the second rotor balance 5 in a weight control mode, specifically, uses the rotation speed of the rotor balance as a control parameter, uses the coal feeding flow of the rotor balance as a controlled parameter, integrates the weight data and the rotation speed data to obtain an instantaneous flow, uses the calculated instantaneous flow as a feedback value, compares the calculated instantaneous flow with a given target flow value, and automatically calculates a rotation speed adjustment value to control the rotation speed of the rotor balance driving motor.
In this embodiment, the controller 9 is electrically connected to the first rotor scale 3 through the first frequency converter 11, and is electrically connected to the second rotor scale 5 through the second frequency converter 12, and when the rotor scale (the first rotor scale 3 or the second rotor scale 5) is controlled to start to operate and the operation flow of the rotor scale is adjusted according to the output adjustment amount, the controller 9 sends a control signal to the frequency converter to control the start, stop and rotation speed of the driving motor of the rotor scale. In practical application, can set up the converter in the distribution room, the independent setting of driving motor of converter and rotor balance can eliminate the signal interference that the converter received, avoids cement manufacture operation environment to lead to the converter to break down, and then avoids equipment trouble to influence cement manufacture system's stability.
In an alternative embodiment, during cement production, the first rotor scale 3 is operated to feed the decomposing furnace with coal, and the second rotor scale 5 is stopped for standby. The temperature sensor 7 detects temperature data at the outlet of the decomposing furnace in real time, and the temperature data is converted into standardized output signals such as current signals or voltage signals which are in linear relation with temperature after being processed by voltage stabilizing filtering, operational amplification, nonlinear correction, V/I conversion and the like by the signal transmitter 8 and then sent to the controller 9.
The controller 9 receives and analyzes the temperature signal sent by the signal transmitter 8 to obtain the temperature data of the outlet of the decomposing furnace. The controller 9 is provided with a preset PID control program, takes the feeding amount of the decomposing furnace as a control parameter, takes the outlet temperature of the decomposing furnace as a controlled parameter, takes the received temperature information as a feedback value, calculates the target feeding amount according to the received outlet temperature data of the decomposing furnace, namely, the given target flow value when the controller 9 controls the rotor scale, specifically, calculates the target feeding amount according to the difference between the outlet temperature data of the decomposing furnace and the set temperature value, and adjusts the feeding amount of the decomposing furnace. When the target coal feeding amount exceeds the maximum range of the first rotor scale 3, the second rotor scale 5 is started, so that the coal feeding amount of the decomposing furnace reaches the target coal feeding amount as soon as possible, the outlet temperature of the decomposing furnace is rapidly controlled to reach a set temperature value, and the condition that the system is unstable due to PID oscillation is avoided. Optionally, the first rotor scale 3 is controlled to continue to operate at the maximum range, and the second rotor scale 5 is controlled to start operating by taking the difference between the target coal feeding amount and the maximum range of the first rotor scale 3 as a given target flow value of the second rotor scale 5. Of course, in order to reduce the operation intensity of the first rotor scale 3, the operation of the first rotor scale 3 may be controlled by taking the set proportion of the maximum range of the first rotor scale 3 as a given target flow value, and the second rotor scale 5 may be controlled to start to operate by taking the difference between the target coal feeding amount and the set proportion of the maximum range of the first rotor scale 3 as the given target flow value of the second rotor scale 5. Further, in the process of changing the outlet temperature of the decomposing furnace to the set temperature value, the output adjustment amount calculated according to the temperature data is correspondingly changed, in the process, the target flow value of the second rotor scale 5 can be controlled to gradually decrease, if the target flow value is reduced to be lower than the target flow value (the actual measuring range or the set proportion of the actual measuring range) of the first rotor scale 3, the second rotor scale 5 can be controlled to stop, and the operation of the first rotor scale 3 can be controlled continuously according to the output adjustment amount.
Optionally, the controller 9 is further electrically connected to driving mechanisms (e.g., driving motors) of the first feeder 2 and the second feeder 4, and when the controller 9 controls the first rotor balance 3 to start running, a driving signal is sent to the driving mechanism of the first feeder 2 at the same time to control the first feeder 2 to start running; similarly, when the controller 9 controls the second rotor balance 5 to start operating, a driving signal is sent to the driving mechanism of the second feeder 4 at the same time, so as to control the first feeder 2 to start operating. And when the controller 9 controls the second rotor balance 5 (or the first rotor balance 3) to stop, simultaneously sending a stop control signal to the driving mechanism of the second feeder 4 to control the second feeder 4 to stop.
Optionally, the system for controlling the outlet temperature of the cement kiln decomposing furnace further comprises a manual interaction device, wherein the manual interaction device is electrically connected with the controller 9, and the controller 9 also generates a control instruction according to the operation of the user based on the manual interaction device. For example, the manual interaction device can comprise a computer (comprising a key mouse input device) or a touch screen 10, and when a cement production operator needs to adjust a set temperature value of the outlet temperature of the decomposing furnace, the set temperature value can be input based on the operation of the manual interaction device; and when the operator needs to switch the first rotor balance 3 and the second rotor balance 5, the operator can input a switching instruction based on the operation of the manual interaction device, and the controller 9 sends a shutdown control instruction to the currently running rotor balance and sends a starting control instruction to the shutdown standby rotor balance.
Further, the control system further comprises an alarm 13, the alarm 13 is electrically connected with the controller 9, a preset program is integrated in the controller 9, a driving control signal can be sent to the alarm 13 when the first rotor balance 3 and the second rotor balance 5 run simultaneously, the alarm 13 responds to the received driving control signal to send out an alarm signal, so that an operator is prompted to pay attention to the fact that the temperature difference between the outlet temperature of the decomposing furnace and the set temperature is large under the current working condition, and the operator is helped to analyze factors of the fact. And, when the first rotor scale 3 or the second rotor scale 5 fails, the controller 9 may stop the current running rotor scale and control the rotor scale which is stopped for standby to start running, and simultaneously control the alarm 13 to send an alarm signal.
In the temperature control system for the outlet of the cement kiln decomposing furnace, the feeder, the rotor balance, the temperature sensor 7, the signal transmitter 8, the frequency converter, the controller 9 and the like can all adopt equipment or electric devices with corresponding functions in the prior art, for example, the temperature sensor 7 can adopt a high-temperature-resistant thermocouple type or a thermistor type temperature sensor 7; for another example, the controller 9 may be an electronic device having data transmission/reception and processing functions, such as a PLC or a computer.
In an actual application scene, the system for controlling the outlet temperature of the cement kiln decomposing furnace according to the embodiment of the utility model can also comprise other components or electronic equipment, and is used for realizing the actual installation and application of the system for controlling the outlet temperature of the cement kiln decomposing furnace. For example, the cement production system also comprises communication devices for realizing communication connection between each equipment and devices in the system and communication connection between the equipment and related equipment in the cement production system; for another example, a power supply assembly is also included for providing power to the apparatus and devices.
It should be noted that each component described in the embodiments of the present utility model may be split into more components according to the implementation needs, and two or more components or parts of components may be combined into new components to achieve the objects of the embodiments of the present utility model.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. The outlet temperature control system of the cement kiln decomposing furnace is characterized by comprising a first rotor scale, a second rotor scale, a temperature sensor and a controller, wherein,
the feeding end of the first rotor scale is connected with the pulverized coal bin through a first feeder, and the discharging end of the first rotor scale is connected with the coal feeding end of the decomposing furnace;
the feeding end of the second rotor scale is connected with the pulverized coal bin through a second feeder, and the discharging end of the second rotor scale is connected with the coal feeding end of the decomposing furnace;
the temperature sensor is arranged at the outlet of the decomposing furnace and is electrically connected with the controller through a signal transmitter, and the temperature sensor sends detected decomposing furnace outlet temperature data to the controller through the signal transmitter;
the controller is electrically connected with the first rotor scale through the first frequency converter and is electrically connected with the second rotor scale through the second frequency converter.
2. The system of claim 1, wherein the controller is further electrically connected to the drive mechanisms of the first feeder and the second feeder, respectively.
3. The system of claim 1, wherein the load sensor and the speed sensor of the first rotor scale are respectively electrically connected to the controller through signal transmitters, and respectively transmit detected weight data and rotation speed data to the controller.
4. The system of claim 1, wherein the load sensor and the speed sensor of the second rotor scale are respectively electrically connected to the controller through signal transmitters, and respectively transmit detected weight data and rotation speed data to the controller.
5. The cement kiln decomposing furnace outlet temperature control system of claim 1, wherein the first frequency converter and the second frequency converter are disposed within a power distribution room.
6. The system of claim 1, further comprising a human interaction device electrically connected to the controller, the controller further generating control instructions based on operation of the human interaction device by a user.
7. The cement kiln decomposing furnace outlet temperature control system according to claim 6, wherein the manual interaction device comprises a computer or a touch screen.
8. The system of claim 1, further comprising an alarm electrically connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320733962.2U CN220186869U (en) | 2023-04-06 | 2023-04-06 | Cement kiln decomposing furnace outlet temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320733962.2U CN220186869U (en) | 2023-04-06 | 2023-04-06 | Cement kiln decomposing furnace outlet temperature control system |
Publications (1)
| Publication Number | Publication Date |
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| CN220186869U true CN220186869U (en) | 2023-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320733962.2U Active CN220186869U (en) | 2023-04-06 | 2023-04-06 | Cement kiln decomposing furnace outlet temperature control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN220186869U (en) |
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2023
- 2023-04-06 CN CN202320733962.2U patent/CN220186869U/en active Active
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