A method and device for controlling the operation of a grate of a waste incinerator

Abstract

The present application discloses a method and device for controlling the operation of a grate of a waste incinerator, which is used to control the grate operating in multiple sections. The method includes: correcting the reference speed of the grate by using the actual thickness of the waste on the grate to obtain a corrected speed; adjusting the corrected speed according to the environment where any one or more sections of the grate are located to obtain the speeds respectively corresponding to each section of the grate; and adjusting the actual operating speeds of each section of the grate by using the speeds respectively corresponding to each section of the grate. The present application can correct the reference speed of the grate in combination with the actual situation of the fuel on the grate, effectively improving the reliability of the grate during operation; on this basis, further considering the actual situation of each section of the grate during operation, and adjusting the actual operating speeds of each section of the grate respectively in combination with the actual situation of each section of the grate during operation, can further improve the reliability of the grate of the waste incinerator during operation.

Description

Technical Field

[0001] The present application relates to the field of automation technology, and particularly to a method and device for controlling the operation of a grate of a waste incinerator. Background Art

[0002] With the improvement of living standards, people pay more and more attention to the problem of waste treatment. As an important device for waste treatment, the waste incinerator can play an important role in solving the problem of waste treatment. The grate, as the core device of the waste incinerator, its operation directly affects the combustion condition of the waste incinerator.

[0003] At present, the adopted waste incinerator is similar to an ordinary boiler, and the method for controlling the operation of the grate of the incinerator is also similar to the control methods of the grates of other ordinary boilers. During the process of waste combustion, the situation of waste caking will occur, which leads to jamming of the grate during operation, with poor reliability and unable to fully meet the working condition requirements of the waste incinerator. And during the operation of the waste incinerator, the furnace temperature will be above 850 °C, and the grate temperature will also reach above 300 °C. If a failure occurs to the grate due to the unreliable operation of the grate, at this time, the staff cannot repair the grate itself under such high temperature conditions, which may lead to problems such as the long-term shutdown of the boiler, and will have a huge impact on people's production and life.

[0004] In view of this, how to improve the reliability of the operation of the grate of the waste incinerator has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] Based on the above problems, the present application provides a method and device for controlling the operation of a grate of a waste incinerator, which can improve the reliability of the operation of the grate of the waste incinerator.

[0006] The embodiments of the present application disclose the following technical solutions:

[0007] The present application provides a method for controlling the operation of a grate of a waste incinerator, which is used to control a grate that operates in multiple sections. The method includes:

[0008] Using the actual thickness of the waste on the grate to correct the reference speed of the grate to obtain a corrected speed;

[0009] According to the environment where any one or more sections of the grate are located, adjusting the corrected speed to obtain the speeds respectively corresponding to each section in the grate;

[0010] Using the speeds respectively corresponding to each section in the grate to adjust the actual operating speeds of each section in the grate.

[0011] Optionally, when the grate divided into multiple sections for operation is a grate divided into three sections for operation, the step of adjusting the correction speed according to the environment in any one or more sections of the grate to obtain the speeds corresponding to the respective sections of the grate includes:

[0012] Obtain the temperature of the space above the first section of the grate, and adjust the correction speed by using the temperature in the space above the first section of the grate to obtain the first speed corresponding to the first section of the grate;

[0013] Obtain the temperature of the space above the third section of the grate, and adjust the correction speed by using the temperature in the space above the third section of the grate to obtain the second speed corresponding to the second section of the grate;

[0014] Adjust the correction speed by using the temperature in the space above the third section of the grate to obtain the third speed corresponding to the third section of the grate.

[0015] Optionally, the step of adjusting the correction speed by using the temperature in the space above the first section of the grate to obtain the first speed corresponding to the first section of the grate includes:

[0016] Process the correction speed by using the parameters preset for the first section of the grate, process the temperature of the space above the first section of the grate by using a preset first function, and adjust the processed correction speed of the first section of the grate according to the processed temperature of the space above the first section of the grate to obtain the first speed corresponding to the first section of the grate;

[0017] The step of adjusting the correction speed by using the temperature in the space above the third section of the grate to obtain the second speed corresponding to the second section of the grate includes:

[0018] Process the correction speed by using the parameters preset for the second section of the grate, process the temperature of the space above the third section of the grate by using a preset second function, and adjust the processed correction speed of the second section of the grate according to the processed temperature of the space above the third section of the grate to obtain the second speed corresponding to the second section of the grate;

[0019] The step of adjusting the correction speed by using the temperature in the space above the third section of the grate to obtain the third speed corresponding to the third section of the grate includes:

[0020] Process the correction speed by using the parameters preset for the third section of the grate, process the temperature of the space above the third section of the grate by using a preset third function, and adjust the processed correction speed of the third section of the grate according to the processed temperature of the space above the third section of the grate to obtain the third speed corresponding to the third section of the grate.

[0021] Optionally, correcting the reference speed of the grate using the actual thickness of the garbage on the grate to obtain a corrected speed includes:

[0022] Obtaining the reference speed of the grate, the actual thickness of the garbage, and the preset thickness of the garbage;

[0023] Obtaining a correction parameter according to the actual thickness of the garbage and the preset thickness of the garbage;

[0024] Correcting the reference speed using the correction parameter to obtain the corrected speed of the grate.

[0025] Optionally, obtaining the actual thickness of the garbage includes:

[0026] Obtaining the actual thickness of the garbage according to the furnace pressure and the air supply pressure of the garbage incinerator.

[0027] Optionally, any section of the grate that operates in multiple sections includes:

[0028] One or more grate units;

[0029] Adjusting the actual operating speed of each section of the grate using the speeds respectively corresponding to each section of the grate includes:

[0030] Transmitting a signal containing the speeds respectively corresponding to each section of the grate to the PLC system;

[0031] Using the PLC system to adjust the actual operating speed of each section of the grate according to the signal.

[0032] Optionally, using the PLC system to adjust the actual operating speed of each section of the grate according to the signal includes:

[0033] Using the PLC system to adjust the hydraulic drive system corresponding to each grate unit in each section of the grate according to the signal;

[0034] Using the hydraulic drive system to adjust the actual operating speed of each section of the grate.

[0035] An embodiment of the present application also provides a device for controlling the operation of the grate of a garbage incinerator, used to control a grate that operates in multiple sections. The device includes:

[0036] A correction module, configured to correct the reference speed of the grate using the actual thickness of the garbage on the grate to obtain a corrected speed;

[0037] The first adjustment module is used to adjust the correction speed according to the environment where any one or more segments of the grate are located, so as to obtain the speeds corresponding to each segment in the grate.

[0038] The second adjustment module is used to adjust the actual operating speeds of the segments in the grate by using the speeds corresponding to each segment in the grate.

[0039] Optionally, when the grate operating in multiple segments is a grate operating in three segments, the first adjustment module includes:

[0040] The first speed acquisition module is used to acquire the temperature of the upper space of the first segment of the grate, and adjust the correction speed by using the temperature in the upper space of the first segment of the grate, so as to obtain the first speed corresponding to the first segment of the grate.

[0041] The second speed acquisition module is used to acquire the temperature of the upper space of the third segment of the grate, and adjust the correction speed by using the temperature in the upper space of the third segment of the grate, so as to obtain the second speed corresponding to the second segment of the grate.

[0042] The third speed acquisition module is used to adjust the correction speed by using the temperature in the upper space of the third segment of the grate, so as to obtain the third speed corresponding to the third segment of the grate.

[0043] Compared with the prior art, the present application has the following beneficial effects:

[0044] The present application corrects the reference speed of the grate according to the actual thickness of the garbage on the grate to obtain the correction speed, and can correct the reference speed of the grate in combination with the actual situation of the fuel on the grate, effectively improving the reliability of the grate during operation; on this basis, the correction speeds of each segment of the grate are adjusted according to the environment where each segment of the grate is located during operation, so as to obtain the speeds corresponding to each segment of the grate, further considering the actual situation of each segment of the grate during operation, and adjusting the actual operating speeds of each segment in the grate in combination with the actual situation of each segment during operation, which can further improve the reliability of the grate of the waste incinerator during operation. Description of the Drawings

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0046] Figure 1Schematic flowchart of a method for controlling the operation of a grate of a waste incinerator provided by an embodiment of the present application;

[0047] Figure 2 Schematic flowchart of a process for adjusting the correction speed provided by an embodiment of the present application;

[0048] Figure 3 Schematic structural diagram of a device for controlling the operation of a grate of a waste incinerator provided by an embodiment of the present application. Detailed implementation manners

[0049] As described above, the current operation mode of controlling the grate of a waste incinerator will cause the grate to jam during operation, and the reliability is poor.

[0050] Through research, the inventor has invented a method and a device for controlling the operation of a grate of a waste incinerator, which can improve the reliability of the grate during operation.

[0051] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0052] Method embodiment

[0053] Refer to Figure 1 , which is a schematic flowchart of a method for controlling the operation of a grate of a waste incinerator provided by an embodiment of the present application, and includes the following steps:

[0054] S101. Correct the reference speed of the grate by using the actual thickness of the waste on the grate to obtain a corrected speed.

[0055] It should be noted that the method for controlling the operation of the grate of the waste incinerator provided by the present application is used to control a grate that is divided into multiple sections for operation.

[0056] The actual thickness of the waste can be obtained by arranging waste thickness detection instruments in the waste incinerator. Specifically, the furnace pressure and the air supply pressure of the waste incinerator can be detected respectively, and the actual thickness of the waste on the grate can be obtained according to the pressure difference between the two.

[0057] In the embodiments provided by the present application, as an example, the reference speed of the grate, the actual thickness of the garbage, and the preset thickness of the garbage can be obtained, where the preset thickness of the garbage is a preset value for the thickness of the garbage on the grate; a correction parameter is obtained according to the actual thickness of the garbage and the preset thickness of the garbage; and the reference speed is corrected by using the correction parameter. Specifically, the thickness of the garbage on the grate can be measured by a garbage thickness measuring instrument, and a PID calculation is performed on it and the set thickness of the garbage to obtain a correction parameter. According to the relationship between the actual thickness of the garbage and the set thickness of the garbage, the reference speed and the correction parameter are added or subtracted to obtain a corrected speed. For example, when the actual thickness of the garbage is greater than the set thickness of the garbage, the reference speed is subtracted from the correction parameter, so that the corrected speed is less than the reference speed. Without considering that the speed will be adjusted according to the actual operating conditions of each section of the grate later, if the corrected speed is used to adjust the actual operating speed of the grate, more combustion time can be obtained for the garbage in the garbage incinerator, and it can burn more fully, effectively reducing the situation of garbage caking and effectively improving the reliability of the grate operation.

[0058] S102. Adjust the corrected speed according to the environment in which any one or more sections of the grate are located to obtain the speeds corresponding to each section of the grate.

[0059] It should be noted that the present application does not limit what kind of environment the environment in which any one or more sections of the grate are located is specifically, and it can be temperature, humidity, pressure, etc. The correspondence between the environment in which each section of the grate is located and the speed corresponding to each section is not limited. That is to say, for example, the corrected speed can be adjusted according to the environment in which the first section of the grate is located to obtain the speed corresponding to the first section of the grate; or the corrected speed can be adjusted according to the environment in which the first section is located to obtain the speed corresponding to the second section of the grate.

[0060] S103. Adjust the actual operating speeds of the sections of the grate by using the speeds corresponding to each section of the grate.

[0061] It should be noted that in the embodiments provided by the present application, the actual operating speeds of the sections of the grate can be adjusted to the speeds corresponding to each section of the grate, or the actual operating speeds of the sections of the grate can be adaptively adjusted by using the speeds corresponding to each section of the grate.

[0062] In the embodiments provided by this application, there is no limitation on how to adjust the actual operating speed of each section of the grate. As an example, signals containing the speeds corresponding to each section of the grate can be transmitted to the PLC system, and the PLC system adjusts the hydraulic drive systems corresponding to each grate unit in each section of the grate according to the signals, and the hydraulic drive systems are used to adjust the actual operating speed of each section of the grate.

[0063] In the embodiments provided by this application, each section of the grate may include multiple units, and the specific number of units can be adjusted according to the amount of garbage required for combustion. For example, when the amount of garbage required for combustion is large, each section of the grate can be set to include more units, and when the amount of garbage required for combustion is small, each section of the grate can be set to include fewer units. Each unit can be regarded as an independent grate and can have a corresponding independent hydraulic drive system, and the operating speed of each unit can be adjusted through the independent hydraulic drive system.

[0064] Specifically, the hydraulic drive system mainly consists of a hydraulic valve group, a hydraulic cylinder, connecting hoses and accessories. The hydraulic cylinder can drive the grate drive shaft to make the grate move forward or backward. The hydraulic valve group of the grate mainly consists of a stacked single-phase throttle valve, an electromagnetic directional valve, a check valve, a needle valve and a valve platform base. The electromagnetic directional valve is mainly used to switch the oil circuit of the hydraulic system and control the grate to move forward or backward. One hydraulic valve group drives one hydraulic cylinder. The hydraulic drive systems corresponding to each grate are the same or similar, and the time for the grate to move forward or backward is controlled by controlling the action of the electromagnetic directional valve.

[0065] The method for controlling the operation of the grate of the waste incinerator provided by the embodiments of this application can correct the reference speed of the grate according to the actual thickness of the waste on the grate to obtain a corrected speed, and can correct the reference speed of the grate in combination with the actual situation of the fuel on the grate, effectively improving the reliability of the grate during operation; on this basis, the corrected speeds of each section of the grate are adjusted respectively according to the environment in which each section of the grate operates to obtain the speeds corresponding to each section of the grate, further considering the actual situation of each section of the grate during operation, and adjusting the actual operating speeds of each section of the grate in the grate respectively in combination with the actual situation during the operation of each section of the grate, which can further improve the reliability of the grate of the waste incinerator during operation.

[0066] See Figure 2 , which is a schematic flow chart of adjusting the corrected speed provided by the embodiments of this application, including the following steps:

[0067] S201, obtain the temperature of the space above the first section of the grate, and adjust the corrected speed by using the temperature in the space above the first section of the grate to obtain the first speed corresponding to the first section of the grate.

[0068] It should be noted that in the embodiments provided in this application, the grate that is divided into multiple sections for operation is a grate divided into three sections for operation. These three sections of the grate are the first section of the grate, the second section of the grate, and the third section of the grate. Their connection relationship is that the first section of the grate is in the front, the second section of the grate is in the middle, and the third section of the grate is in the back. The garbage is sent to the second section of the grate through the first section of the grate, and then sent to the third section of the grate through the second section of the grate. Among them, the first section of the grate is a drying section grate, the second section of the grate is a combustion section grate, and the third section of the grate is an afterburning section grate. The garbage is dried on the drying section grate, burned on the combustion section grate, and the garbage passing through the combustion section grate is completely burned on the afterburning section grate.

[0069] As an example, the correction speed can be processed using the parameters preset for the first section of the grate, the temperature of the upper space of the first section of the grate can be processed using a preset first function, and according to the processed temperature of the upper space of the first section of the grate, the correction speed of the processed first section of the grate can be adjusted to obtain the first speed corresponding to the first section of the grate.

[0070] Specifically, the correction speed can be multiplied by the parameters preset for the first section of the grate, and these parameters can be set according to the actual situation; use a preset first function to process the temperature above the first section of the grate. The specific processing process is that when the temperature above the first section of the grate is less than or equal to the first threshold, the function output value is A1, when the temperature above the first section of the grate is greater than or equal to the second threshold, the function output value is A2, and when the temperature above the first section of the grate is greater than the first threshold and less than the second threshold, the function output value is A3, where A1, A2, and A3 can be set according to the actual situation; multiplying the correction speed by the parameters preset for the first section of the grate and then multiplying by the function output value can obtain the first speed corresponding to the first section of the grate.

[0071] It should be noted that the temperature of the upper space of the first section of the grate can be obtained by setting temperature measuring points on the left and right furnace walls of the incinerator above the first section of the grate and using a temperature detection instrument. The temperature of the upper space of the first section of the grate mainly affects the operating speed of the first section of the grate. Adjusting the correction speed according to the temperature of the upper space of the first section of the grate can make the garbage dry as much as possible on the first section of the grate, which can provide good fuel for the stable combustion of the garbage incinerator.

[0072] S202. Obtain the temperature of the upper space of the third section of the grate, and adjust the correction speed using the temperature in the upper space of the third section of the grate to obtain the second speed corresponding to the second section of the grate.

[0073] As an example, the corrected speed can be processed using the preset parameters for the second-section grate, and the temperature of the upper space of the third-section grate can be processed using a preset second function. According to the processed temperature of the upper space of the third-section grate, the corrected speed of the second-section grate can be adjusted to obtain the second speed corresponding to the second-section grate.

[0074] Specifically, the correction speed can be multiplied by a preset parameter for the second grate, and the parameter can be set according to actual conditions; the temperature of the upper part of the third grate is processed using a preset second function, and the specific processing process is: when the temperature of the upper part of the third grate is less than or equal to a third threshold, the function output value is B1, when the temperature of the upper part of the third grate is greater than or equal to a fourth threshold, the function output value is B2, and when the temperature of the upper part of the third grate is greater than the third threshold and less than the fourth threshold, the function output value is B3, wherein B1, B2 and B3 can be set according to actual conditions; multiplying the correction speed by the preset parameter for the second grate and then by the function output value can obtain the second speed corresponding to the second grate.

[0075] It should be noted that the temperature of the space above the third grate can be obtained by setting temperature measuring points on the left and right walls of the incinerator above the third grate using a temperature detection instrument. The temperature of the space above the third grate will mainly affect the operating speeds of the second and third grates. The correction speed is adjusted according to the temperature of the space above the third grate to obtain the second and third speeds, which can fully burn the garbage and fully release the preheat.

[0076] S203, adjusting the correction speed by using the temperature of the space above the third grate to obtain a third speed corresponding to the third grate.

[0077] As an example, the corrected speed can be processed using the preset parameters for the third-section grate, and the temperature of the upper space of the third-section grate can be processed using a preset third function. According to the temperature of the upper space of the third-section grate after processing, the corrected speed of the third-section grate after processing is adjusted to obtain the third speed corresponding to the third-section grate.

[0078] Specifically, the correction speed can be multiplied by a parameter preset for the third-stage grate, and this parameter can be set according to the actual situation. The temperature above the third-stage grate is processed using a preset third function. The specific processing process is as follows: when the temperature above the third-stage grate is less than or equal to the fifth threshold, the function output value is C1; when the temperature above the third-stage grate is greater than or equal to the sixth threshold, the function output value is C2; when the temperature above the third-stage grate is greater than the fifth threshold and less than the sixth threshold, the function output value is C3, where C1, C2, and C3 can be set according to the actual situation. Multiplying the correction speed by the parameter preset for the third-stage grate and then multiplying by the function output value can obtain the third speed corresponding to the third-stage grate.

[0079] It should be noted that the first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold can be the same or different.

[0080] In the embodiment provided by the present application, the correction speed of the first-stage grate is adjusted by using the temperature of the space above the first-stage grate, the correction speed of the second-stage grate is adjusted by using the temperature of the space above the third-stage grate, and the correction speed of the third-stage grate is adjusted by using the temperature of the space above the third-stage grate. In the embodiment provided by the present application, since the third-stage grate is the burnout-stage grate, it can be known whether the garbage has been fully burned after passing through the combustion-stage grate, that is, the second-stage grate, according to the temperature of the space above it. For example, when the temperature of the space above the burnout-stage grate is relatively high, it can be known that the garbage has not been fully burned on the combustion-stage grate. Then, the operating speed of the combustion-stage grate can be slowed down so that the garbage can be burned more fully on the combustion-stage grate, thereby reducing the occurrence of garbage caking and improving the reliability of the operation of the incinerator grate. When the temperature of the burnout-stage grate is relatively low, it can be known that the garbage has been burned too fully on the combustion-stage grate. Then, the operating speed of the combustion-stage grate can be increased so that the combustion efficiency of the garbage incinerator is improved, and the working efficiency of the incinerator is enhanced. At the same time, the temperature of the space above the burnout-stage grate is relatively lower than the temperature of the space above the combustion-stage grate. The price of a temperature detection instrument of the same mass will increase with the increase of the maximum measured temperature. By using the method provided by the embodiment of the present application, while improving the reliability of the operation of the garbage incinerator grate, the cost is reduced to a certain extent.

[0081] Device embodiment

[0082] See Figure 3 , which is a schematic structural diagram of a device for controlling the operation of a garbage incinerator grate provided by an embodiment of the present application, including: a correction module 301, a first adjustment module 302, and a second adjustment module 303.

[0083] Among them, the correction module 301 is configured to correct the reference speed of the grate by using the actual thickness of the garbage on the grate to obtain a corrected speed.

[0084] The first adjustment module 302 is configured to adjust the corrected speed according to the environment where any one or more sections of the grate are located to obtain the speeds respectively corresponding to the sections of the grate.

[0085] The second adjustment module 303 is configured to adjust the actual operating speeds of the sections of the grate by using the speeds respectively corresponding to the sections of the grate.

[0086] Optionally, the first adjustment module 302 includes:

[0087] The first speed acquisition module is configured to acquire the temperature of the space above the first section of the grate, and adjust the corrected speed by using the temperature in the space above the first section of the grate to obtain the first speed corresponding to the first section of the grate;

[0088] The second speed acquisition module is configured to acquire the temperature of the space above the third section of the grate, and adjust the corrected speed by using the temperature in the space above the third section of the grate to obtain the second speed corresponding to the second section of the grate;

[0089] The third speed acquisition module is configured to adjust the corrected speed by using the temperature in the space above the third section of the grate to obtain the third speed corresponding to the third section of the grate.

[0090] Optionally, the first speed acquisition module includes:

[0091] The grate first speed acquisition module is configured to process the corrected speed by using the parameters preset for the first section of the grate, process the temperature of the space above the first section of the grate by using a preset first function, and adjust the corrected speed of the first section of the grate after processing according to the processed temperature of the space above the first section of the grate to obtain the first speed corresponding to the first section of the grate;

[0092] The second speed acquisition module includes:

[0093] The grate second speed acquisition module is configured to process the corrected speed by using the parameters preset for the second section of the grate, process the temperature of the space above the third section of the grate by using a preset second function, and adjust the corrected speed of the second section of the grate after processing according to the processed temperature of the space above the third section of the grate to obtain the second speed corresponding to the second section of the grate;

[0094] The third speed acquisition module includes:

[0095] The third speed acquisition module of the grate is used to process the corrected speed by using the parameters preset for the third section of the grate, process the temperature of the upper space of the third section of the grate by using a preset third function, and adjust the corrected speed of the third section of the grate after processing according to the processed temperature of the upper space of the third section of the grate to obtain the third speed corresponding to the third section of the grate.

[0096] Optionally, the correction module 301 includes:

[0097] The first acquisition module is used to acquire the reference speed of the grate, the actual thickness of the garbage, and the preset thickness of the garbage;

[0098] The second acquisition module is used to acquire a correction parameter according to the actual thickness of the garbage and the preset thickness of the garbage;

[0099] The speed correction module is used to correct the reference speed by using the correction parameter to obtain the corrected speed of the grate.

[0100] Optionally, the acquisition module includes:

[0101] The actual garbage thickness acquisition module is used to acquire the actual thickness of the garbage according to the furnace pressure and the air supply pressure of the garbage incinerator.

[0102] Optionally, the second adjustment module 303 includes:

[0103] The transmission module is used to transmit a signal containing the speeds corresponding to each section in the grate to the PLC system;

[0104] The third adjustment module is used to adjust the actual operating speeds of each section in the grate by using the PLC system according to the signal.

[0105] Optionally, the third adjustment module includes:

[0106] The hydraulic adjustment module is used to adjust the hydraulic drive systems corresponding to each grate unit in each section of the grate by using the PLC system according to the signal;

[0107] The fourth adjustment module is used to adjust the actual operating speeds of each section in the grate by using the hydraulic drive system.

[0108] A device for controlling the operation of a grate of a waste incinerator provided by an embodiment of the present application can correct the reference speed of the grate according to the actual thickness of the waste on the grate to obtain a corrected speed, and can correct the reference speed of the grate in combination with the actual situation of the fuel on the grate, effectively improving the reliability of the grate during operation; on this basis, the corrected speeds of each section of the grate are adjusted respectively according to the environment in which each section of the grate is located during operation to obtain the speeds corresponding to each section of the grate respectively, further considering the actual situation of each section of the grate during operation, and adjusting the actual operating speeds of each section of the grate in the grate respectively in combination with the actual situation of each section of the grate during operation, so that the reliability of the grate operation of the waste incinerator can be further improved.

[0109] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the device embodiments, since they are basically similar to the method embodiments, they are described relatively simply, and the relevant parts can be referred to the partial description of the method embodiments. The device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components indicated as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0110] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for controlling the operation of a grate of a waste incinerator, characterized in that, A grate for controlling three-stage operation, the method comprising: Correcting a reference speed of the grate by using an actual thickness of refuse on the grate to obtain a corrected speed; Obtaining a temperature of a space above a first-stage grate, adjusting the corrected speed by using the temperature of the space above the first-stage grate to obtain a first speed corresponding to the first-stage grate; obtaining a temperature of a space above a third-stage grate, adjusting the corrected speed by using the temperature of the space above the third-stage grate to obtain a second speed corresponding to a second-stage grate; adjusting the corrected speed by using the temperature of the space above the third-stage grate to obtain a third speed corresponding to the third-stage grate; Wherein, the adjusting the corrected speed by using the temperature of the space above the first-stage grate to obtain the first speed corresponding to the first-stage grate includes: processing the corrected speed by using a parameter preset for the first-stage grate, processing the temperature of the space above the first-stage grate by using a preset first function, and adjusting the corrected speed of the first-stage grate after processing according to the processed temperature of the space above the first-stage grate to obtain the first speed corresponding to the first-stage grate; Wherein, the adjusting the corrected speed by using the temperature of the space above the third-stage grate to obtain the second speed corresponding to the second-stage grate includes: processing the corrected speed by using a parameter preset for the second-stage grate, processing the temperature of the space above the third-stage grate by using a preset second function, and adjusting the corrected speed of the second-stage grate after processing according to the processed temperature of the space above the third-stage grate to obtain the second speed corresponding to the second-stage grate; Wherein, the adjusting the corrected speed by using the temperature of the space above the third-stage grate to obtain the third speed corresponding to the third-stage grate includes: processing the corrected speed by using a parameter preset for the third-stage grate, processing the temperature of the space above the third-stage grate by using a preset third function, and adjusting the corrected speed of the third-stage grate after processing according to the processed temperature of the space above the third-stage grate to obtain the third speed corresponding to the third-stage grate; Adjusting actual operating speeds of respective segments of the grate by using speeds respectively corresponding to the respective segments of the grate.

2. The method according to claim 1, wherein The correcting the reference speed of the grate by using the actual thickness of refuse on the grate to obtain a corrected speed includes: Obtaining the reference speed of the grate, the actual thickness of refuse, and a preset thickness of refuse; Obtaining a correction parameter according to the actual thickness of refuse and the preset thickness of refuse; Correcting the reference speed by using the correction parameter to obtain the corrected speed of the grate.

3. The method according to claim 2, characterized in that, The obtaining the actual thickness of refuse includes: Obtaining the actual thickness of refuse according to a furnace pressure and an air supply pressure of the refuse incinerator.

4. The method according to claim 1, characterized in that, Any one segment of the grate for three-stage operation includes: One or more grate units; Adjusting the actual operating speeds of the respective sections of the grate by using the speeds respectively corresponding to the respective sections in the grate, including: Transmitting a signal containing the speeds respectively corresponding to the respective sections in the grate to the PLC system; Adjusting the actual operating speeds of the respective sections in the grate by using the PLC system according to the signal.

5. The method according to claim 4, characterized in that, The adjusting the actual operating speeds of the respective sections in the grate by using the PLC system according to the signal includes: Adjusting the hydraulic drive systems corresponding to the respective grate units in the respective sections of the grate by using the PLC system according to the signal; Adjusting the actual operating speeds of the respective sections in the grate by using the hydraulic drive systems.

6. A device for controlling the operation of a grate in a waste incinerator, characterized in that, A device for controlling a grate operating in three sections, the device includes: a correction module, a first adjustment module and a second adjustment module; The correction module is used for correcting the reference speed of the grate by using the actual thickness of the garbage on the grate to obtain a corrected speed; The first adjustment module includes a first speed acquisition module, a second speed acquisition module and a third speed acquisition module; wherein, the first speed acquisition module is used for acquiring the temperature of the upper space of the first section of the grate, and adjusting the corrected speed by using the temperature of the upper space of the first section of the grate to obtain a first speed corresponding to the first section of the grate; the second speed acquisition module is used for acquiring the temperature of the upper space of the third section of the grate, and adjusting the corrected speed by using the temperature of the upper space of the third section of the grate to obtain a second speed corresponding to the second section of the grate; the third speed acquisition module is used for adjusting the corrected speed by using the temperature of the upper space of the third section of the grate to obtain a third speed corresponding to the third section of the grate; Wherein, the adjusting the corrected speed by using the temperature of the upper space of the first section of the grate to obtain a first speed corresponding to the first section of the grate includes: processing the corrected speed by using the parameters preset for the first section of the grate, processing the temperature of the upper space of the first section of the grate by using a preset first function, and adjusting the corrected speed of the first section of the grate after processing according to the processed temperature of the upper space of the first section of the grate to obtain a first speed corresponding to the first section of the grate; Wherein, the adjusting the corrected speed by using the temperature of the upper space of the third section of the grate to obtain a second speed corresponding to the second section of the grate includes: processing the corrected speed by using the parameters preset for the second section of the grate, processing the temperature of the upper space of the third section of the grate by using a preset second function, and adjusting the corrected speed of the second section of the grate after processing according to the processed temperature of the upper space of the third section of the grate to obtain a second speed corresponding to the second section of the grate; Among them, adjusting the correction speed by using the temperature of the upper space of the third grate to obtain the third speed corresponding to the third grate includes: processing the correction speed by using the parameters preset for the third grate, processing the temperature of the upper space of the third grate by using a preset third function, and adjusting the correction speed of the processed third grate according to the processed temperature of the upper space of the third grate to obtain the third speed corresponding to the third grate; The second adjustment module is used to adjust the actual operating speeds of the respective sections of the grate by using the speeds respectively corresponding to the respective sections in the grate.

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