CN115031242A - Method and device for controlling operation of fire grate of garbage incinerator - Google Patents
Method and device for controlling operation of fire grate of garbage incinerator Download PDFInfo
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- CN115031242A CN115031242A CN202210741385.1A CN202210741385A CN115031242A CN 115031242 A CN115031242 A CN 115031242A CN 202210741385 A CN202210741385 A CN 202210741385A CN 115031242 A CN115031242 A CN 115031242A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
Abstract
The application discloses a method and a device for controlling the operation of a fire grate of a garbage incinerator, which are used for controlling the fire grate divided into a plurality of sections of operation, wherein the method comprises the following steps: correcting the reference speed of the fire grate by using the actual thickness of the garbage on the fire grate to obtain a corrected speed; adjusting the correction speed according to the environment of any one section or multiple sections in the fire grate to obtain the speed corresponding to each section in the fire grate; and adjusting the actual running speed of each section in the grate by utilizing the corresponding speed of each section in the grate. The reference speed of the fire grate can be corrected by combining the actual condition of the fuel on the fire grate, so that the reliability of the fire grate in operation is effectively improved; on the basis, the actual conditions of the fire grates of all sections during the operation of the fire grates are further considered, the actual operation speed of all the sections in the fire grates is respectively adjusted by combining the actual conditions during the operation of all the sections of the fire grates, and the reliability during the operation of the fire grates of the garbage incinerator can be further improved.
Description
Technical Field
The application relates to the technical field of automation, in particular to a method and a device for controlling a fire grate of a garbage incinerator to operate.
Background
With the improvement of living standard, people pay more attention to the problem of garbage disposal. The garbage incinerator, as an important device for treating garbage, can play an important role in solving the problem of garbage treatment. The fire grate is used as the core equipment of the garbage incinerator, and the running condition of the fire grate directly influences the combustion working condition of the garbage incinerator.
The currently adopted garbage incinerator is similar to a common boiler, the mode of controlling the incinerator grate to operate is similar to the control method of other common boiler grates, and the condition of garbage agglomeration can occur in the garbage combustion process, so that the grate is jammed in the operation process, poor in reliability and incapable of completely meeting the working condition requirements of the garbage incinerator. In addition, in the operation process of the garbage incinerator, the temperature of a hearth can reach above 850 ℃, and the temperature of a grate can also reach above 300 ℃. If the fire grate fails due to the unreliable operation of the fire grate, at the moment, workers cannot overhaul the fire grate at high temperature, so that the problems of long-time shutdown of a boiler and the like can occur, and great influence can be caused on the production and life of people.
In view of the above, how to improve the reliability of the grate of the garbage incinerator during operation becomes a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
Based on the problems, the application provides a method and a device for controlling the running of the fire grate of the garbage incinerator, which can improve the running reliability of the fire grate of the garbage incinerator.
The embodiment of the application discloses the following technical scheme:
the application provides a method for controlling the operation of a fire grate of a garbage incinerator, which is used for controlling the fire grate divided into a plurality of sections of operation, and the method comprises the following steps:
correcting the reference speed of the fire grate by using the actual thickness of the garbage on the fire grate to obtain a corrected speed;
adjusting the correction speed according to the environment of any one section or multiple sections in the fire grate to obtain the speed corresponding to each section in the fire grate;
and adjusting the actual running speed of each section in the grate by using the speed corresponding to each section in the grate.
Optionally, when the grate operating in multiple sections is a grate operating in three sections, the correction speed is adjusted according to an environment where any one or more sections of the grates are located, so as to obtain speeds corresponding to the sections of the grate, including:
acquiring the temperature of the upper space of a first section of grate, and adjusting the correction speed by using the temperature in the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
acquiring the temperature of the upper space of the third section of grate, and adjusting the correction speed by using the temperature in the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
and adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
Optionally, the adjusting the correction speed by using the temperature in 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 correction speed by using a parameter preset for the first section of grate, processing the temperature of the upper space of the first section of grate by using a preset first function, and adjusting the corrected speed of the first section of grate after processing according to the processed temperature of the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
the adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate comprises the following steps:
processing the correction speed by using a parameter preset aiming at the second section of grate, processing the temperature of the upper space of the third section of grate by using a preset second function, and adjusting the corrected speed of the second section of grate after processing according to the processed temperature of the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
the adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate comprises the following steps:
and processing the correction speed by using parameters preset aiming at the third section of grate, processing the temperature of the upper space of the third section of grate by using a preset third function, and adjusting the corrected speed of the processed third section of grate according to the processed temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
Optionally, the step of correcting the reference speed of the grate by using the actual thickness of the garbage on the grate to obtain a corrected speed includes:
acquiring the reference speed of the grate, the actual thickness of the garbage and the preset thickness of the garbage;
acquiring a correction parameter according to the actual thickness of the garbage and the preset thickness of the garbage;
and correcting the reference speed by using the correction parameter to obtain the correction speed of the fire grate.
Optionally, the acquiring the reference speed of the grate includes:
acquiring a main steam flow set value, a garbage low heat value, garbage specific gravity, specific enthalpy of water supply steam and incinerator mechanical size of the garbage incinerator;
and acquiring a reference speed according to the main steam flow set value, the garbage low heat value, the garbage specific gravity, the specific enthalpy of water supply steam and the mechanical size of the incinerator.
Optionally, the obtaining the actual thickness of the garbage includes:
and acquiring the actual thickness of the garbage according to the hearth pressure and the air supply pressure of the garbage incinerator.
Optionally, any section of grate in the grate which is divided into multiple sections to run comprises:
one or more grate units;
the adjusting the actual operating speed of each section in the grate by using the speed corresponding to each section in the grate comprises:
transmitting signals containing the speeds corresponding to the sections in the grate to a PLC system;
and adjusting the actual running speed of each section in the grate by utilizing the PLC system according to the signal.
Optionally, the adjusting, by using the PLC system, the actual operating speed of each section in the grate according to the signal includes:
adjusting the hydraulic driving system corresponding to each fire grate unit in each section of fire grate by using the PLC system according to the signal;
and adjusting the actual running speed of each section in the grate by using the hydraulic driving system.
The embodiment of the application still provides a device of control waste incinerator grate operation for the grate that the control divide into the multistage operation, the device includes:
the correction module is used for correcting the reference speed of the fire grate by using the actual thickness of the garbage on the fire grate to obtain a corrected speed;
the first adjusting module is used for adjusting the correcting speed according to the environment of any one section or multiple sections in the fire grate to obtain the speed corresponding to each section in the fire grate;
and the second adjusting module is used for adjusting the actual running speed of each section in the grate by using the speed corresponding to each section in the grate.
Optionally, when the grate that is divided into a plurality of sections of operation is a grate that is divided into three sections of operation, the first adjusting module includes:
the first speed acquisition module is used for acquiring the temperature of the upper space of the first section of grate, and adjusting the correction speed by using the temperature in the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
the second speed acquisition module is used for acquiring the temperature of the upper space of the third section of grate, and adjusting the correction speed by using the temperature in the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
and the third speed acquisition module is used for adjusting the correction speed by utilizing the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
Compared with the prior art, the method has the following beneficial effects:
according to the method and the device, the reference speed of the grate is corrected according to the actual thickness of the garbage on the grate to obtain the corrected speed, the reference speed of the grate can be corrected by combining the actual condition of the fuel on the grate, and the reliability of the grate in operation is effectively improved; on the basis, the correction speed of each section of fire grate is adjusted according to the environment of each section of fire grate during operation respectively to obtain the speed corresponding to each section of fire grate, the actual condition of each section of fire grate during operation is further considered, and the actual operation speed of each section of fire grate is adjusted by combining the actual condition of each section of fire grate during operation, so that the reliability of the fire grate of the garbage incinerator during operation can be further improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a method for controlling the operation of a grate of a waste incinerator according to an embodiment of the present application;
fig. 2 is a schematic flow chart illustrating adjustment of the correction speed according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an apparatus for controlling the operation of a grate of a garbage incinerator according to an embodiment of the present application.
Detailed Description
As described above, the prior art of controlling the operation of the fire grate of the garbage incinerator can cause the fire grate to be jammed during operation, and the reliability is poor.
The inventor researches and invents a method and a device for controlling the operation of a fire grate of a garbage incinerator, and can improve the reliability of the operation of the fire grate of the garbage incinerator.
In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Method embodiment
Referring to fig. 1, which is a schematic flow chart of a method for controlling the operation of a grate of a garbage incinerator according to an embodiment of the present application, the method includes the following steps:
s101, correcting the reference speed of the fire grate by using the actual thickness of the garbage on the fire grate to obtain a corrected speed.
It should be noted that the method for controlling the operation of the fire grate of the garbage incinerator is used for controlling the fire grate which is divided into a plurality of sections to operate.
In the embodiment provided by the application, the reference speed can be obtained by obtaining a main steam flow set value, a garbage lower heating value, a garbage specific gravity, a specific enthalpy of feed water and steam and an incinerator mechanical size of the garbage incinerator; and acquiring a reference speed according to the main steam flow set value, the garbage low heat value, the garbage specific gravity, the specific enthalpy of water and steam supply and the mechanical size of the incinerator. Specifically, the reference speed can be obtained by the following formula:
B2＝FT*A2/LHV/A1/A3
wherein, B2 is the reference speed of the grate, FT is the main steam flow set value of the incinerator, LHV is the lower calorific value of the garbage, A1 is the specific gravity of the garbage, A2 is the specific enthalpy of the water and steam supply of the incinerator, and A3 is the mechanical size of the incinerator.
The actual thickness of the garbage can be obtained by arranging a garbage thickness detection instrument in the garbage incinerator, specifically, the hearth pressure and the air supply pressure of the garbage incinerator can be respectively detected, and the actual thickness of the garbage on the grate can be obtained according to the pressure difference between the hearth pressure and the air supply pressure.
In the embodiment provided by the 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, wherein the preset thickness of the garbage is a preset value for the thickness of the garbage on the grate; acquiring a correction parameter according to the actual thickness of the garbage and the preset thickness of the garbage; and correcting the reference speed by using the correction parameter. Specifically, the garbage thickness on the grate can be measured by a garbage thickness measuring instrument, the garbage thickness and the garbage set thickness are subjected to PID calculation to obtain a correction parameter, and the reference speed and the correction parameter are added or subtracted according to the relation between the actual garbage thickness and the garbage set thickness to obtain the correction speed. For example, when the actual thickness of the garbage is larger than the set thickness of the garbage, the reference speed and the correction parameter are subtracted, so that the correction speed is smaller than the reference speed, and under the condition that the speed is adjusted according to the actual running condition of each section of grate in the follow-up process without consideration, if the actual running speed of the grate is adjusted by using the correction speed, the garbage can obtain more combustion time in the garbage incinerator, the garbage can be combusted more sufficiently, the garbage agglomeration can be effectively reduced, and the running reliability of the grate is effectively improved.
S102, adjusting the correction speed according to the environment of any one or more sections of the grate to obtain the speed corresponding to each section of the grate.
It should be noted that the specific environment of any one or more sections of the furnace row is not limited in the present application, and may be temperature, humidity, pressure, and the like. The corresponding relationship between the environment of each section in the furnace row and the speed corresponding to each section is not limited. That is, for example, the correction speed may be adjusted according to the environment of the first section of the grate, so as to obtain the speed corresponding to the first section of the grate; the correction speed can also be adjusted according to the environment of the first section to obtain the speed corresponding to the second section in the grate.
S103, adjusting the actual running speed of each section in the grate by using the speed corresponding to each section in the grate.
It should be noted that, in the embodiments provided in the present application, the actual operating speed of each section in the grate may be adjusted to the speed corresponding to each section in the grate, or the actual operating speed of each section in the grate may be adaptively adjusted by using the speed corresponding to each section in the grate.
In the embodiments provided in the present application, how to adjust the actual operating speed of each section in the grate is not limited, and as an example, a signal including the speed corresponding to each section in the grate may be transmitted to a PLC system, the PLC system is used to adjust the hydraulic driving system corresponding to each grate unit in each section of the grate according to the signal, and the hydraulic driving system is used to adjust the actual operating speed of each section in the grate.
In the embodiments provided by the present application, each section in the grate may include a plurality of units, and specifically, how many units are included may 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 in the grate may be set to include more units, and when the amount of garbage required for combustion is small, each section in the grate may be set to include fewer units. Each unit can be regarded as an independent grate and can be provided with a corresponding independent hydraulic driving system, and the running speed of each unit can be adjusted through the independent hydraulic driving system.
Specifically, the hydraulic driving system mainly comprises a hydraulic valve group, a hydraulic cylinder, a connecting hose and accessories, and the hydraulic cylinder can drive the grate driving shaft to enable the grate to move forwards or backwards. The hydraulic valve group of the fire grate mainly comprises a superposed single-phase throttle valve, an electromagnetic reversing valve, a one-way valve, a needle valve and a valve table base. The electromagnetic directional valve is mainly used for switching an oil way of a hydraulic system and controlling the fire grate to move forwards or backwards. A hydraulic valve block drives a hydraulic cylinder. The hydraulic driving system corresponding to each grate is the same or similar, and the time of advancing or retreating the grates is controlled by controlling the action of the electromagnetic reversing valve.
According to the method for controlling the grate of the garbage incinerator, the reference speed of the grate is corrected according to the actual thickness of the garbage on the grate to obtain the corrected speed, the reference speed of the grate can be corrected by combining the actual condition of the fuel on the grate, and the reliability of the grate in operation is effectively improved; on the basis, the correction speed of each section of fire grate is adjusted according to the environment of each section of fire grate during operation respectively to obtain the speed corresponding to each section of fire grate, the actual condition of each section of fire grate during operation is further considered, and the actual operation speed of each section of fire grate is adjusted by combining the actual condition of each section of fire grate during operation, so that the reliability of the fire grate of the garbage incinerator during operation can be further improved.
Referring to fig. 2, which is a schematic flow chart of adjusting the correction speed according to an embodiment of the present application, including the following steps:
s201, obtaining the temperature of the upper space of the first section of grate, and adjusting the correction speed by using the temperature of the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate.
It should be noted that, in the embodiments provided in the present application, the fire grate that is divided into multiple sections of operation is a fire grate that is divided into three sections of operation, and the three sections of fire grates are a first section of fire grate, a second section of fire grate, and a third section of fire grate respectively. The connection relationship of the first section of grate, the second section of grate and the third section of grate is that the first section of grate is arranged in front of the second section of grate, the third section of grate is arranged behind the third section of grate, and the garbage is discharged to the second section of grate through the first section of grate and is discharged to the third section of grate through the second section of grate. The first section of grate is a drying section grate, the second section of grate is a combustion section grate, and the third section of grate is an after-burning section grate. The garbage is dried on the drying section grate, is combusted on the combustion section grate, and is combusted on the burn-out section grate.
As an example, the correction speed may be processed by using a parameter preset for the first section of the grate, the temperature of the upper space of the first section of the grate may be processed by using a preset first function, and the corrected speed of the first section of the grate after processing may be adjusted according to the processed temperature of the upper space of the first section of the grate, so as to obtain a first speed corresponding to the first section of the grate.
Specifically, the correction speed may be multiplied by a parameter preset for the first stage of the grate, and the parameter may be set according to an actual situation; the method comprises the steps of utilizing a preset first function to process the temperature of the upper part of a first section of grate, wherein the specific processing process is that when the temperature of the upper part of the first section of grate is smaller than or equal to a first threshold value, the output value of the function is set to be A1 When the temperature of the upper part of the first section of the fire grate is greater than or equal to a second threshold value, the output value of the function is made to be A2 When the temperature of the upper part of the first section of the fire grate is greater than a first threshold value and less than a second threshold value, the output value of the function is set to be A3 Wherein A1 、 A2 And A3 the setting can be carried out according to the actual situation; multiplying the correction speed by a parameter preset for the first section of fire grate and then multiplying the parameter by a function output value to obtain the first section of fire grateA corresponding first speed.
It should be noted that the temperature of the space above the first section of fire grate can be obtained by using a temperature measuring instrument by arranging temperature measuring points on the left and right walls of the incinerator above the first section of fire grate. The temperature of the upper space of the first section of grate mainly influences the running speed of the first section of grate, and the correction speed is adjusted according to the temperature of the upper space of the first section of grate, so that garbage can be dried on the first section of grate as much as possible, and good fuel can be provided for stable combustion of the garbage incinerator.
S202, acquiring the temperature of the upper space of the third section of grate, and adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate.
As an example, the correction speed may be processed by using a parameter preset for the second section of the grate, the temperature of the upper space of the third section of the grate may be processed by using a preset second function, and the corrected speed of the second section of the grate after processing may be adjusted according to the processed temperature of the upper space of the third section of the grate, so as to obtain a second speed corresponding to the second section of the grate.
Specifically, the correction speed may be multiplied by a parameter preset for the second-stage grate, and the parameter may be set according to an actual situation; the temperature of the upper part of the third section of grate is processed by utilizing a preset second function, and the specific processing process is that when the temperature of the upper part of the third section of grate is less than or equal to a third threshold value, the output value of the function is enabled to be B1 When the temperature of the upper part of the third section of the fire grate is more than or equal to a fourth threshold value, the output value of the function is set to be B2 When the temperature of the upper part of the third section of grate is greater than a third threshold value and less than a fourth threshold value, the output value of the function is set to be B3 Wherein B1 、 B2 And B3 the setting can be carried out according to the actual situation; and multiplying the corrected speed by a parameter preset for the second section of grate and then multiplying the parameter by a function output value to obtain a second speed corresponding to the second section of grate.
It should be noted that the temperature of the space above the third section of grate can be obtained by using a temperature measuring instrument by arranging temperature measuring points on the left and right walls of the incinerator above the third section of grate. The temperature of the upper space of the third section of grate mainly influences the running speeds of the second section of grate and the third section of grate, the correction speed is adjusted according to the temperature of the upper space of the third section of grate to obtain a second speed and a third speed, so that garbage can be fully combusted, and preheating can be fully released.
S203, adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
As an example, the correction speed may be processed by using a parameter preset for the third section of the grate, the temperature of the upper space of the third section of the grate may be processed by using a preset third function, and the correction speed of the processed third section of the grate may be adjusted according to the processed temperature of the upper space of the third section of the grate, so as to obtain a third speed corresponding to the third section of the grate.
Specifically, the correction speed may be multiplied by a parameter preset for the third section of the grate, and the parameter may be set according to an actual situation; processing the temperature of the upper part of the third section of the fire grate by using a preset third function, wherein the specific processing process is that when the temperature of the upper part of the third section of the fire grate is less than or equal to a fifth threshold value, the output value of the function is set to be C1 When the temperature of the upper part of the third section of the fire grate is more than or equal to a sixth threshold value, the output value of the function is made to be C2 When the temperature of the upper part of the third section of grate is greater than a fifth threshold value and less than a sixth threshold value, the output value of the function is set to be C3 In which C1 、 C2 And C3 the setting can be carried out according to the actual situation; and multiplying the corrected speed by a parameter preset for the third section of grate and then multiplying the parameter by a function output value to obtain a third speed corresponding to the third section of grate.
The first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold may be the same or different.
The embodiment that this application provided adjusts the correction speed of first section grate through the temperature that utilizes first section grate upper portion space, the correction speed of second section grate is adjusted and the correction speed of third section grate is adjusted to the temperature that utilizes the grate upper portion space of third section grate, in the embodiment that this application provided, because the third section grate is the burn-out section grate, can learn rubbish through the burning section grate according to the temperature of its upper portion space, also be exactly behind the combustion process of second section grate, rubbish has not fully burnt. For example, when the temperature of the upper space of the fire grate of the burning section is higher, the situation that the garbage is not fully burned in the fire grate of the burning section can be known, and then the running speed of the fire grate of the burning section can be slowed down, so that the garbage can be more fully burned in the fire grate of the burning section, the garbage agglomeration condition can be reduced, and the running reliability of the fire grate of the incinerator is improved; when the grate temperature of the burning section is lower, the situation that garbage is burnt on the grate of the burning section too fully can be known, so that the running speed of the grate of the burning section can be increased, the combustion efficiency of the garbage incinerator is improved, and the working efficiency of the incinerator is improved. Meanwhile, the temperature of the upper space of the fire grate of the burning section is lower than that of the upper part of the fire grate of the burning section, the price of a temperature detection instrument with the same quality can rise along with the increase of the maximum measured temperature, and the cost is reduced to a certain extent on the basis of improving the reliability of the operation of the fire grate of the garbage incinerator by adopting the method provided by the embodiment of the application.
Apparatus embodiment
Referring to fig. 3, which is a schematic structural view of an apparatus for controlling the operation of a grate of a waste incinerator according to an embodiment of the present application, the apparatus includes: a modification module 301, a first adjustment module 302, and a second adjustment module 303.
The correcting 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.
A first adjusting module 302, configured to adjust the correction speed according to an environment where any one or more sections of the grate are located, so as to obtain speeds corresponding to the sections of the grate.
A second adjusting module 303, configured to adjust an actual operating speed of each section in the grate by using a speed corresponding to each section in the grate.
Optionally, the first adjusting module 302 includes:
the first speed acquisition module is used for acquiring the temperature of the upper space of the first section of grate, and adjusting the correction speed by using the temperature in the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
the second speed acquisition module is used for acquiring the temperature of the upper space of the third section of grate, and adjusting the correction speed by using the temperature in the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
and the third speed acquisition module is used for adjusting the correction speed by utilizing the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
Optionally, the first speed obtaining module includes:
the first grate speed acquisition module is used for processing the correction speed by using a parameter preset for the first section of grate, processing the temperature of the upper space of the first section of grate by using a preset first function, and adjusting the correction speed of the processed first section of grate according to the processed temperature of the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
the second speed acquisition module includes:
the grate second speed acquisition module is used for processing the correction speed by using parameters preset aiming at the second section of grate, processing the temperature of the upper space of the third section of grate by using a preset second function, and adjusting the processed correction speed of the second section of grate according to the processed temperature of the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
the third speed acquisition module includes:
and the grate third speed acquisition module is used for processing the correction speed by using parameters preset for the third section of grate, processing the temperature of the upper space of the third section of grate by using a preset third function, and adjusting the processed correction speed of the third section of grate according to the processed temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
Optionally, the modification module 301 includes:
the first acquisition module is used for acquiring the reference speed, the actual garbage thickness and the preset garbage thickness of the grate;
the second acquisition module is used for acquiring correction parameters according to the actual garbage thickness and the preset garbage thickness;
and the speed correction module is used for correcting the reference speed by using the correction parameter to obtain the correction speed of the fire grate.
Optionally, the first obtaining module includes:
the data acquisition module is used for acquiring a main steam flow set value, a garbage low-order heat value, garbage specific gravity, specific enthalpy of water supply steam and mechanical size of the garbage incinerator;
and the reference speed acquisition module is used for acquiring a reference speed according to the main steam flow set value, the garbage low heat value, the garbage specific gravity, the specific enthalpy of the feedwater steam and the mechanical size of the incinerator.
Optionally, the obtaining module includes:
and the actual garbage thickness obtaining module is used for obtaining the actual garbage thickness according to the hearth pressure and the air supply pressure of the garbage incinerator.
Optionally, the second adjusting module 303 includes:
the transmission module is used for transmitting signals containing the speeds corresponding to the sections in the grate to a PLC system;
and the third adjusting module is used for adjusting the actual running speed of each section in the grate by utilizing the PLC system according to the signal.
Optionally, the third adjusting module includes:
the hydraulic adjusting module is used for adjusting the hydraulic driving systems corresponding to the grate units in the grate sections according to the signals by using the PLC system;
and the fourth adjusting module is used for adjusting the actual running speed of each section in the grate by using the hydraulic driving system.
According to the device for controlling the grate of the garbage incinerator to operate, the reference speed of the grate is corrected according to the actual thickness of garbage on the grate to obtain the corrected speed, the reference speed of the grate can be corrected by combining the actual condition of fuel on the grate, and the reliability of the grate in operation is effectively improved; on the basis, the correction speed of each section of fire grate is adjusted according to the environment of each section of fire grate during operation respectively to obtain the speed corresponding to each section of fire grate, the actual condition of each section of fire grate during operation is further considered, and the actual operation speed of each section of fire grate is adjusted by combining the actual condition of each section of fire grate during operation, so that the reliability of the fire grate of the garbage incinerator during operation can be further improved.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. The above-described device embodiments are merely illustrative, and the units described as separate components may or may not be physically separate, and the components suggested as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement without inventive effort.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method of controlling operation of a grate of a waste incinerator for controlling a grate which is divided into a plurality of sections, the method comprising:
correcting the reference speed of the fire grate by using the actual thickness of the garbage on the fire grate to obtain a corrected speed;
adjusting the correction speed according to the environment of any one section or multiple sections in the fire grate to obtain the speed corresponding to each section in the fire grate;
and adjusting the actual running speed of each section in the grate by using the speed corresponding to each section in the grate.
2. The method according to claim 1, wherein when the grate operating in multiple sections is a grate operating in three sections, the adjusting the correction speed according to the environment of any one or more sections of the grate to obtain the speed corresponding to each section of the grate comprises:
acquiring the temperature of the upper space of a first section of grate, and adjusting the correction speed by using the temperature in the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
acquiring the temperature of the upper space of a third section of grate, and adjusting the correction speed by using the temperature in the upper space of the third section of grate to obtain a second speed corresponding to a second section of grate;
and adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
3. The method of claim 2, wherein adjusting the modified speed using the temperature in the headspace of the first stage grate to obtain a corresponding first speed for the first stage grate comprises:
processing the correction speed by using a parameter preset for the first section of grate, processing the temperature of the upper space of the first section of grate by using a preset first function, and adjusting the corrected speed of the first section of grate after processing according to the processed temperature of the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
the adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate comprises the following steps:
processing the correction speed by using a parameter preset aiming at the second section of grate, processing the temperature of the upper space of the third section of grate by using a preset second function, and adjusting the corrected speed of the second section of grate after processing according to the processed temperature of the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
the adjusting the correction speed by using the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate comprises the following steps:
and processing the correction speed by using parameters preset aiming at the third section of grate, processing the temperature of the upper space of the third section of grate by using a preset third function, and adjusting the corrected speed of the processed third section of grate according to the processed temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
4. The method of claim 1, wherein said correcting the reference velocity of the grate using the actual thickness of the refuse on the grate to obtain a corrected velocity comprises:
acquiring the reference speed of the grate, the actual thickness of the garbage and the preset thickness of the garbage;
acquiring a correction parameter according to the actual garbage thickness and the preset garbage thickness;
and correcting the reference speed by using the correction parameter to obtain the correction speed of the fire grate.
5. The method of claim 4, wherein said obtaining a reference velocity of the grate comprises:
acquiring a main steam flow set value, a garbage low-grade heat value, garbage specific gravity, specific enthalpy of water supply steam and incinerator mechanical size of the garbage incinerator;
and acquiring a reference speed according to the main steam flow set value, the garbage low heat value, the garbage specific gravity, the specific enthalpy of water supply steam and the mechanical size of the incinerator.
6. The method of claim 4, wherein said obtaining an actual thickness of the trash comprises:
and acquiring the actual thickness of the garbage according to the hearth pressure and the air supply pressure of the garbage incinerator.
7. The method of claim 1, wherein any one of said banks operating in multiple sections comprises:
one or more grate units;
the adjusting the actual operating speed of each section in the grate by using the speed corresponding to each section in the grate comprises:
transmitting signals containing speeds corresponding to all the sections in the grate to a PLC system;
and adjusting the actual running speed of each section in the grate by utilizing the PLC system according to the signal.
8. The method of claim 7, wherein said adjusting actual operating speeds of the segments in the grate based on the signal using the PLC system comprises:
adjusting the hydraulic driving system corresponding to each grate unit in each section of grate by using the PLC system according to the signals;
and adjusting the actual running speed of each section in the grate by using the hydraulic driving system.
9. A device for controlling the operation of a grate of a waste incinerator for controlling a grate which is divided into a plurality of sections of operation, said device comprising:
the correction module is used for correcting the reference speed of the fire grate by using the actual thickness of the garbage on the fire grate to obtain a corrected speed;
the first adjusting module is used for adjusting the correcting speed according to the environment of any one section or multiple sections in the fire grate to obtain the speed corresponding to each section in the fire grate;
and the second adjusting module is used for adjusting the actual running speed of each section in the grate by using the speed corresponding to each section in the grate.
10. The apparatus of claim 9, wherein when the grate that operates in multiple sections is a grate that operates in three sections, the first adjustment module comprises:
the first speed acquisition module is used for acquiring the temperature of the upper space of the first section of grate, and adjusting the correction speed by using the temperature in the upper space of the first section of grate to obtain a first speed corresponding to the first section of grate;
the second speed acquisition module is used for acquiring the temperature of the upper space of the third section of grate, and adjusting the correction speed by using the temperature in the upper space of the third section of grate to obtain a second speed corresponding to the second section of grate;
and the third speed acquisition module is used for adjusting the correction speed by utilizing the temperature of the upper space of the third section of grate to obtain a third speed corresponding to the third section of grate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741385.1A CN115031242A (en) | 2022-06-28 | 2022-06-28 | Method and device for controlling operation of fire grate of garbage incinerator |
| PCT/CN2022/136073 WO2024001046A1 (en) | 2022-06-28 | 2022-12-02 | Method and apparatus for controlling operation of grate of garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210741385.1A CN115031242A (en) | 2022-06-28 | 2022-06-28 | Method and device for controlling operation of fire grate of garbage incinerator |
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| CN115031242A true CN115031242A (en) | 2022-09-09 |
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| CN202210741385.1A Pending CN115031242A (en) | 2022-06-28 | 2022-06-28 | Method and device for controlling operation of fire grate of garbage incinerator |
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| CN (1) | CN115031242A (en) |
| WO (1) | WO2024001046A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115899715A (en) * | 2022-09-27 | 2023-04-04 | 江门市华杰固体废物处理有限公司 | Multi-stage furnace, pyrolysis carbonization sludge treatment system and treatment process |
| WO2024001046A1 (en) * | 2022-06-28 | 2024-01-04 | 上海康恒环境股份有限公司 | Method and apparatus for controlling operation of grate of garbage incinerator |
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| GB338174A (en) * | 1929-06-10 | 1930-11-10 | Iwan Arbatsky | Process and device for the operation of furnaces, particularly for steam boilers |
| GB856942A (en) * | 1957-10-01 | 1960-12-21 | Edwin Danks And Company Oldbur | Improvements in apparatus for controlling the operation of mechanical stokers |
| JP5521918B2 (en) * | 2010-09-06 | 2014-06-18 | Ｊｆｅエンジニアリング株式会社 | Incinerator operation control method |
| CN102840586B (en) * | 2012-09-13 | 2015-11-18 | 宁明辉 | Domestic waste incineration automatic combustion control system |
| CN103234208B (en) * | 2012-11-28 | 2016-01-20 | 上海康恒环境股份有限公司 | One way of life incinerator automatic combustion fire box temperature control system |
| CN104110687A (en) * | 2014-07-04 | 2014-10-22 | 光大环保技术装备（常州）有限公司 | Control system and method for speed of incinerator grate |
| JP6596121B1 (en) * | 2018-06-01 | 2019-10-23 | 川崎重工業株式会社 | In-furnace situation determination method and combustion control method |
| CN110145745B (en) * | 2019-05-16 | 2020-11-24 | 绿色动力环保集团股份有限公司 | Multi-drive reverse-push type garbage incinerator ACC control method and system |
| CN115031242A (en) * | 2022-06-28 | 2022-09-09 | 上海康恒环境股份有限公司 | Method and device for controlling operation of fire grate of garbage incinerator |
-
2022
- 2022-06-28 CN CN202210741385.1A patent/CN115031242A/en active Pending
- 2022-12-02 WO PCT/CN2022/136073 patent/WO2024001046A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001046A1 (en) * | 2022-06-28 | 2024-01-04 | 上海康恒环境股份有限公司 | Method and apparatus for controlling operation of grate of garbage incinerator |
| CN115899715A (en) * | 2022-09-27 | 2023-04-04 | 江门市华杰固体废物处理有限公司 | Multi-stage furnace, pyrolysis carbonization sludge treatment system and treatment process |
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| WO2024001046A1 (en) | 2024-01-04 |
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