Temperature control system, method, electronic device and storage medium for a hot blast stove

Abstract

The application provides a hot blast stove temperature control method, system, electronic equipment and storage medium. The method comprises the following steps: after the hot blast stove starts to operate, the set temperature of the hot blast stove is detected and ensured to be in a predetermined temperature range; after operating for a predetermined time, the inlet and outlet temperatures of a cyclone separator are detected; if the inlet temperature or the outlet temperature is lower than the respective lower limit of the temperature, the set temperature of the hot blast stove is increased; and if the inlet temperature and the outlet temperature are higher than the respective upper limit of the temperature, the set temperature of the hot blast stove is decreased. The system comprises function modules corresponding to the implementation of the above steps. The electronic equipment: the processor executes the computer program stored in the memory to realize the method. The storage medium stores the computer program which is executed by the processor to realize the method. According to the application, the problem that the dryness of the dry powder treated by the system does not meet the standard and the stable operation of the system is affected due to the fixed temperature operation mode of the hot blast stove applied to the centrifugal dewatering drying system can be solved.

Description

Technical Field

[0001] This invention belongs to the technical field of centrifugal dehydration and drying equipment, and more specifically, relates to a temperature control system, method, electronic equipment and storage medium for hot air furnaces. Background Technology

[0002] In existing centrifugal dehydration and drying systems, the hot air furnace often operates at a constant temperature, meaning the output hot air temperature remains constant. However, in actual use, the required hot air temperature varies to achieve the desired dryness of the powder, necessitating temperature control and regulation of the hot air furnace. Generally, when the required temperature is lower than the furnace's constant temperature, the temperature inside the system pipes and the exhaust gas increases, leading to higher oxygen levels and affecting the system's safe and stable operation. Conversely, when the required temperature is higher, the temperature inside the system pipes and the exhaust gas decreases, causing an increase in the moisture content of the dried material. This not only results in the accumulation of wet sludge in the pipes and cyclone separator but also negatively impacts the system's stable operation. Therefore, controlling and regulating the hot air furnace temperature is essential. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that existing hot air furnaces used in centrifugal dehydration and drying systems are prone to causing the dry powder produced by the system to fail to meet the dryness standard and affecting the stable operation of the system due to the use of a constant temperature operation mode.

[0004] To achieve the above objectives, the present invention provides a temperature control system, method, electronic device, and computer-readable storage medium for a hot blast furnace.

[0005] According to a first aspect of the present invention, a method for temperature control of a hot air furnace is provided, the hot air furnace being applied to a centrifugal dehydration and drying system, the centrifugal dehydration and drying system including a cyclone separator;

[0006] The temperature control method includes:

[0007] In response to the start of operation of the hot air furnace, the set temperature of the hot air furnace is detected at a predetermined first frequency. If the set temperature of the hot air furnace is not within the preset set temperature range of the hot air furnace, the set temperature of the hot air furnace is adjusted to the set temperature range of the hot air furnace.

[0008] In response to the hot air furnace operating for a preset time, the inlet and outlet temperatures of the cyclone separator are detected at a predetermined second frequency. If the inlet temperature is lower than a preset lower limit for the inlet temperature or the outlet temperature is lower than a preset lower limit for the outlet temperature, the set temperature of the hot air furnace is increased.

[0009] If the inlet temperature is higher than the preset upper limit of the inlet temperature and the outlet temperature is higher than the preset upper limit of the outlet temperature, then the set temperature of the hot air furnace is reduced.

[0010] Optionally, adjusting the set temperature of the hot air furnace to within the set temperature range of the hot air furnace includes:

[0011] If the set temperature of the hot air furnace is higher than the preset upper limit of the set temperature of the hot air furnace, then the set temperature of the hot air furnace is adjusted to the upper limit of the set temperature of the hot air furnace.

[0012] If the set temperature of the hot air furnace is lower than the preset lower limit of the hot air furnace set temperature, then the set temperature of the hot air furnace will be adjusted to the lower limit of the hot air furnace set temperature.

[0013] Optionally, if the inlet temperature is lower than a preset lower limit for the inlet temperature or the outlet temperature is lower than a preset lower limit for the outlet temperature, then increasing the set temperature of the hot air furnace specifically involves:

[0014] If the inlet temperature is lower than the lower limit of the inlet temperature for a first duration, or the outlet temperature is lower than the lower limit of the outlet temperature for a second duration, determine whether the difference between the upper limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than N. If yes, increase the hot air furnace setting temperature by N℃; otherwise, increase the hot air furnace setting temperature to the upper limit of the hot air furnace setting temperature.

[0015] Optionally, if the inlet temperature is higher than a preset inlet temperature upper limit and the outlet temperature is higher than a preset outlet temperature upper limit, then reducing the set temperature of the hot air furnace specifically involves:

[0016] If the inlet temperature is higher than the upper limit of the inlet temperature for a third duration, and the outlet temperature is higher than the upper limit of the outlet temperature for a fourth duration, determine whether the difference between the lower limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than P. If yes, reduce the hot air furnace setting temperature by P℃. If no, reduce the hot air furnace setting temperature to the lower limit of the hot air furnace setting temperature.

[0017] According to a second aspect of the present invention, a temperature control system for a hot air furnace is provided, the hot air furnace being used in a centrifugal dehydration and drying system, the centrifugal dehydration and drying system including a cyclone separator;

[0018] The temperature control system includes:

[0019] The first hot air furnace set temperature control module is used to respond to the start of operation of the hot air furnace by detecting the set temperature of the hot air furnace at a predetermined first frequency. If the set temperature of the hot air furnace is not within the preset set temperature range of the hot air furnace, the set temperature of the hot air furnace is adjusted to the set temperature range of the hot air furnace.

[0020] The second hot air furnace temperature control module is used to detect the inlet and outlet temperatures of the cyclone separator at a predetermined second frequency in response to the hot air furnace operating for a preset time. If the inlet temperature is lower than a preset lower limit for the inlet temperature or the outlet temperature is lower than a preset lower limit for the outlet temperature, the hot air furnace temperature setting is increased.

[0021] If the inlet temperature is higher than the preset upper limit of the inlet temperature and the outlet temperature is higher than the preset upper limit of the outlet temperature, then the set temperature of the hot air furnace is reduced.

[0022] According to a third aspect of the present invention, an electronic device is provided, comprising a processor and a memory, wherein the processor executes a computer program stored in the memory to implement the temperature control method for the hot blast furnace described above.

[0023] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program that, when executed by a processor, implements the temperature control method for the hot blast stove described above.

[0024] The beneficial effects of this invention are as follows: by comparing the inlet temperature of the cyclone separator with the preset upper and lower limits of the inlet temperature and the outlet temperature of the cyclone separator with the preset upper and lower limits of the outlet temperature, the temperature inside the pipeline is determined. This allows for the determination of the relationship between the required temperature and the output temperature of the hot air furnace, which serves as the basis for adjusting the set temperature of the hot air furnace. Simultaneously, by controlling the set temperature of the hot air furnace to always be within the required range based on the upper and lower limits of the set temperature, the dryness of the material is ensured to be within the required range, while also ensuring stable system operation. Attached Figure Description

[0025] The present invention can be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to denote the same or similar parts.

[0026] Figure 1 A schematic flowchart of a temperature control method for a hot blast stove according to an embodiment of the present invention is shown. Detailed Implementation

[0027] To enable those skilled in the art to more fully understand the technical solutions of the present invention, exemplary embodiments of the present invention will be described more comprehensively and in detail below with reference to the accompanying drawings. Obviously, the one or more embodiments of the present invention described below are merely one or more specific ways to implement the technical solutions of the present invention, and are not exhaustive. It should be understood that other ways belonging to a general inventive concept can be used to implement the technical solutions of the present invention, and should not be limited to the embodiments described exemplary. Based on one or more embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0028] Example: Figure 1 As shown, this embodiment proposes a temperature control method for a hot air furnace, which is applied to a centrifugal dehydration and drying system, which includes a cyclone separator.

[0029] Temperature control methods include:

[0030] In response to the start of operation of the hot air furnace, the set temperature of the hot air furnace is detected at a predetermined first frequency. If the set temperature of the hot air furnace is not within the preset set temperature range, the set temperature of the hot air furnace is adjusted to the set temperature range.

[0031] In response to the hot air furnace reaching a preset operating time, the inlet and outlet temperatures of the cyclone separator are detected at a predetermined second frequency. If the inlet temperature is lower than the preset lower limit of the inlet temperature or the outlet temperature is lower than the preset lower limit of the outlet temperature, the set temperature of the hot air furnace is increased.

[0032] If the inlet temperature is higher than the preset upper limit of the inlet temperature and the outlet temperature is higher than the preset upper limit of the outlet temperature, then the hot air furnace setting temperature will be reduced.

[0033] Specifically, the inlet temperature is the feed inlet temperature of the cyclone separator, and the outlet temperature is the air outlet temperature of the cyclone separator.

[0034] Furthermore, adjusting the hot air furnace set temperature to within the hot air furnace set temperature range includes:

[0035] If the hot air furnace setting temperature is higher than the preset upper limit of the hot air furnace setting temperature, then the hot air furnace setting temperature will be adjusted to the upper limit of the hot air furnace setting temperature.

[0036] If the hot air furnace setting temperature is lower than the preset lower limit of the hot air furnace setting temperature, then the hot air furnace setting temperature will be adjusted to the lower limit of the hot air furnace setting temperature.

[0037] Furthermore, if the inlet temperature is lower than the preset lower limit of the inlet temperature or the outlet temperature is lower than the preset lower limit of the outlet temperature, the hot air furnace setting temperature will be increased as follows:

[0038] If the inlet temperature is lower than the lower limit of the inlet temperature for a first duration, or the outlet temperature is lower than the lower limit of the outlet temperature for a second duration, determine whether the difference between the upper limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than N. If yes, increase the hot air furnace setting temperature by N℃. If no, increase the hot air furnace setting temperature to the upper limit of the hot air furnace setting temperature.

[0039] Furthermore, if the inlet temperature is higher than the preset upper limit of the inlet temperature and the outlet temperature is higher than the preset upper limit of the outlet temperature, the hot air furnace setting temperature will be reduced as follows:

[0040] If the inlet temperature is higher than the upper limit of the inlet temperature for a third time and the outlet temperature is higher than the upper limit of the outlet temperature for a fourth time, determine whether the difference between the lower limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than P. If yes, reduce the hot air furnace setting temperature by P℃. If no, reduce the hot air furnace setting temperature to the lower limit of the hot air furnace setting temperature.

[0041] Accordingly, based on the above-mentioned temperature control method, this embodiment also proposes a temperature control system for a hot air furnace, which is applied to a centrifugal dehydration and drying system, which includes a cyclone separator.

[0042] The temperature control system includes:

[0043] The first hot air furnace set temperature control module is used to respond to the start of operation of the hot air furnace by detecting the set temperature of the hot air furnace at a predetermined first frequency. If the set temperature of the hot air furnace is not within the preset set temperature range, the set temperature of the hot air furnace is adjusted to the set temperature range.

[0044] The second hot air furnace temperature control module is used to detect the inlet and outlet temperatures of the cyclone separator at a predetermined second frequency in response to the hot air furnace operating for a preset time. If the inlet temperature is lower than the preset lower limit of the inlet temperature or the outlet temperature is lower than the preset lower limit of the outlet temperature, the hot air furnace set temperature is increased.

[0045] If the inlet temperature is higher than the preset upper limit of the inlet temperature and the outlet temperature is higher than the preset upper limit of the outlet temperature, then the hot air furnace setting temperature will be reduced.

[0046] Specifically, the temperature control method is as follows:

[0047] 1. The upper limit and lower limit of the hot air furnace temperature are preset. The hot air furnace temperature is within the temperature range between the upper limit and the lower limit of the hot air furnace temperature. The operator can adjust the hot air furnace temperature according to the needs through the human-machine interface.

[0048] 2. Preset the upper limit of the inlet temperature, the lower limit of the inlet temperature, the upper limit of the outlet temperature, and the lower limit of the outlet temperature of the cyclone separator. This will serve as the basis for adjusting the set temperature of the hot air furnace. The operator can adjust the inlet temperature range and the outlet temperature range according to the needs through the human-machine interface. The inlet temperature range is between the upper limit of the inlet temperature and the lower limit of the inlet temperature, and the outlet temperature range is between the upper limit of the outlet temperature and the lower limit of the outlet temperature.

[0049] 3. After the hot air furnace starts running, the first hot air furnace set temperature control module detects the set temperature of the hot air furnace at a predetermined first frequency. If the set temperature of the hot air furnace is higher than the preset upper limit of the set temperature of the hot air furnace, the set temperature of the hot air furnace is adjusted to the upper limit of the set temperature of the hot air furnace.

[0050] If the hot air furnace setting temperature is lower than the preset lower limit of the hot air furnace setting temperature, then adjust the hot air furnace setting temperature to the lower limit of the hot air furnace setting temperature.

[0051] 4. The preset duration is one hour. After the hot air furnace has been running for one hour, the second hot air furnace set temperature control module detects the inlet and outlet temperatures of the cyclone separator at the preset second frequency. If the inlet temperature is lower than the lower limit of the inlet temperature for 10 seconds or the outlet temperature is lower than the lower limit of the outlet temperature for 10 seconds, it indicates that the temperature in the pipeline is too low and the heat is insufficient, which may cause the accumulation of wet mud in the pipeline and the cyclone separator. It is determined whether the difference between the upper limit of the hot air furnace set temperature and the hot air furnace set temperature is greater than 10. If so, the hot air furnace set temperature is increased by 10℃. If not, the hot air furnace set temperature is increased to the upper limit of the hot air furnace set temperature.

[0052] If the inlet temperature is higher than the upper limit of the inlet temperature for 10 seconds and the outlet temperature is higher than the upper limit of the outlet temperature for 10 seconds, it indicates that the temperature inside the pipeline is too high. Determine whether the difference between the lower limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than 5. If yes, reduce the hot air furnace setting temperature by 5°C. If no, reduce the hot air furnace setting temperature to the lower limit of the hot air furnace setting temperature.

[0053] Accordingly, based on the above-described temperature control method, this embodiment also proposes an electronic device, including a processor and a memory, wherein the processor executes a computer program stored in the memory to implement the above-described temperature control method for the hot air furnace.

[0054] Accordingly, based on the above temperature control method, this embodiment also proposes a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described temperature control method for the hot blast stove.

[0055] While one or more embodiments of the present invention have been described above, those skilled in the art will recognize that the present invention can be implemented in any other form without departing from its spirit and scope. Therefore, the embodiments described above are illustrative and not restrictive, and many modifications and substitutions will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for temperature control of a hot air furnace, wherein the hot air furnace is applied to a centrifugal dehydration and drying system, the centrifugal dehydration and drying system comprising a cyclone separator; Its features are, The temperature control method includes: In response to the start of operation of the hot air furnace, the set temperature of the hot air furnace is detected at a predetermined first frequency. If the set temperature of the hot air furnace is not within the preset set temperature range of the hot air furnace, the set temperature of the hot air furnace is adjusted to the set temperature range of the hot air furnace. In response to the hot air furnace operating for a preset time, the inlet and outlet temperatures of the cyclone separator are detected at a predetermined second frequency. If the inlet temperature is lower than a preset lower limit for the inlet temperature or the outlet temperature is lower than a preset lower limit for the outlet temperature, the set temperature of the hot air furnace is increased. If the inlet temperature is higher than the preset inlet temperature limit and the outlet temperature is higher than the preset outlet temperature limit, then the set temperature of the hot air furnace is reduced. The inlet temperature is the feed temperature of the cyclone separator, and the outlet temperature is the air outlet temperature of the cyclone separator.

2. The temperature control method for a hot blast stove according to claim 1, characterized in that, The step of adjusting the set temperature of the hot air furnace to the set temperature range of the hot air furnace includes: If the set temperature of the hot air furnace is higher than the preset upper limit of the set temperature of the hot air furnace, then the set temperature of the hot air furnace is adjusted to the upper limit of the set temperature of the hot air furnace. If the set temperature of the hot air furnace is lower than the preset lower limit of the hot air furnace set temperature, then the set temperature of the hot air furnace will be adjusted to the lower limit of the hot air furnace set temperature.

3. The temperature control method for a hot blast stove according to claim 1, characterized in that, If the inlet temperature is lower than the preset lower limit of the inlet temperature or the outlet temperature is lower than the preset lower limit of the outlet temperature, then increasing the set temperature of the hot air furnace specifically involves: If the inlet temperature is lower than the lower limit of the inlet temperature for a first duration, or the outlet temperature is lower than the lower limit of the outlet temperature for a second duration, determine whether the difference between the upper limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than N. If yes, increase the hot air furnace setting temperature by N℃; otherwise, increase the hot air furnace setting temperature to the upper limit of the hot air furnace setting temperature.

4. The temperature control method for a hot blast stove according to claim 1, characterized in that, If the inlet temperature is higher than a preset inlet temperature upper limit and the outlet temperature is higher than a preset outlet temperature upper limit, then reducing the set temperature of the hot air furnace specifically involves: If the inlet temperature is higher than the upper limit of the inlet temperature for a third duration, and the outlet temperature is higher than the upper limit of the outlet temperature for a fourth duration, determine whether the difference between the lower limit of the hot air furnace setting temperature and the hot air furnace setting temperature is greater than P. If yes, reduce the hot air furnace setting temperature by P℃. If no, reduce the hot air furnace setting temperature to the lower limit of the hot air furnace setting temperature.

5. A temperature control system for a hot air furnace, the hot air furnace being used in a centrifugal dehydration and drying system, the centrifugal dehydration and drying system including a cyclone separator; Its features are, The temperature control system includes: The first hot air furnace set temperature control module is used to respond to the start of operation of the hot air furnace by detecting the set temperature of the hot air furnace at a predetermined first frequency. If the set temperature of the hot air furnace is not within the preset set temperature range of the hot air furnace, the set temperature of the hot air furnace is adjusted to the set temperature range of the hot air furnace. The second hot air furnace temperature control module is used to detect the inlet and outlet temperatures of the cyclone separator at a predetermined second frequency in response to the hot air furnace operating for a preset time. If the inlet temperature is lower than a preset lower limit for the inlet temperature or the outlet temperature is lower than a preset lower limit for the outlet temperature, the hot air furnace temperature setting is increased. If the inlet temperature is higher than the preset inlet temperature limit and the outlet temperature is higher than the preset outlet temperature limit, then the set temperature of the hot air furnace is reduced. The inlet temperature is the feed temperature of the cyclone separator, and the outlet temperature is the air outlet temperature of the cyclone separator.

6. An electronic device, characterized in that, The device includes a processor and a memory, wherein the processor executes a computer program stored in the memory to implement the temperature control method for the hot blast stove according to any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the temperature control method for the hot blast stove according to any one of claims 1-4.

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