CN117232283B - Automatic start-stop system of intelligent vacuum dewaxing sintering furnace - Google Patents
Automatic start-stop system of intelligent vacuum dewaxing sintering furnace Download PDFInfo
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- 238000005245 sintering Methods 0.000 title claims abstract description 29
- 239000007787 solid Substances 0.000 claims abstract description 46
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- 238000012351 Integrated analysis Methods 0.000 claims abstract description 12
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- 239000000284 extract Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 8
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- 238000005238 degreasing Methods 0.000 description 2
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- 239000011261 inert gas Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
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Abstract
The invention discloses an automatic start-stop system of an intelligent vacuum dewaxing sintering furnace, which relates to the technical field of equipment power supply control and comprises an inertial data acquisition module, an integrated analysis module, a start-stop control module and a terminal detection module, wherein basic information of target equipment processing is acquired, standard content values and standard collection rates are obtained through processing, the receivable content of the processing is obtained, the quality of solid wax acquired in real time is processed to obtain a relation curve of the quality of the solid wax and time, the quality of the solid wax acquired in real time is input into the relation curve to be corrected to obtain a final prediction curve, the receivable content is then input into the final prediction curve to obtain a stop time value, timing is carried out according to the stop time value, a stop signal is generated when the stop time value is reached, and the target equipment is automatically controlled to stop air intake, so that the air intake time of the equipment is accurately controlled, and resource waste is reduced.
Description
Technical Field
The invention belongs to the technical field of equipment power supply control, and particularly relates to an automatic start-stop system of an intelligent vacuum dewaxing sintering furnace.
Background
The vacuum dewaxing sintering furnace is an important device commonly used in the powder metallurgy industry, and is used for manufacturing metal materials after dewaxing and sintering a mixture of metal powder and non-metal powder.
The invention of patent publication No. CN103706790A discloses an automatic temperature control method of a vacuum degreasing sintering furnace catcher, wherein each heating temperature set value SV corresponds to a pressure interval, a PLC (programmable logic controller) judges that the heating temperature set value SV is needed at the moment according to the pressure value in the catcher, the PLC automatically calculates according to the heating temperature set value SV and a real-time temperature value PV of the outer wall of the catcher, then the calculated result is transmitted to a solid state relay, and the solid state relay controls the on-off of heating wire current. The pressure value in the catcher is lower in the initial stage of negative pressure degreasing, the heating temperature of the heating wire is low, and most binder vapor can be caught; when the pressure value in the catcher is higher, the fact that the binder solidified in the catcher is more is indicated, the catcher is easy to be blocked, the heating temperature of the heating wire is increased at the moment, the binder solidified in the gap of the inner wall of the catcher is liquefied when meeting heat and flows into the grease collecting box, and smooth air flow is ensured.
The gaseous wax binder generated in the dewaxing process of the vacuum dewaxing sintering furnace is adhered to the inside of the furnace, at the moment, inert gas is generally adopted to clean the inside of the furnace, the viscous friction between the boundary layer of inert gas flow and the waxy gas layer is utilized to carry away the waxy gas, but in order to prevent the adhered waxy gas from being in the vacuum dewaxing sintering furnace after the processing is finished, the additional gas input is usually carried out to the vacuum dewaxing sintering furnace after the processing is finished, when the additional gas is introduced, the time and the flow of the introduced gas can not be completely detected, so that the time of introducing the gas can not be determined, when the time of introducing the gas is too long, the resource waste can be caused, when the time of introducing the gas is too short, the waxy gas is adhered to equipment after being cooled, and the running state of the equipment is affected seriously.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art; therefore, the invention provides an intelligent automatic start-stop system of a vacuum dewaxing sintering furnace, which is used for solving the technical problems.
To achieve the above object, an embodiment according to a first aspect of the present invention provides an automatic start-stop system for an intelligent vacuum dewaxing sintering furnace, comprising:
the inertial data acquisition module acquires inertial data of target equipment, acquires basic information of target equipment processing, extracts wax content of each processing in the basic information and weight of processing materials, processes the basic information to obtain standard content values, and then corresponds the standard content values of each processing to the collection amount of the processed gaseous wax one by one and processes the standard content values to obtain standard collection rate;
the content detection module is used for acquiring the quality of the solid wax of the target equipment in real time when in operation;
the integrated analysis module is used for analyzing the quality of the collected solid wax to obtain a stop time value, obtaining the receivable content of the processing by obtaining the weight of the material to be processed, processing the quality of the solid wax collected in real time to obtain a relation curve of the quality of the solid wax and time, inputting the quality of the solid wax collected in real time into the relation curve for correction to obtain an actual change curve, and then inputting the receivable content into the actual change curve to obtain the stop time value;
the start-stop control module is used for receiving the stop time value, timing the time, generating a stop signal when the stop time value is reached, and automatically controlling the target equipment to stop air intake;
the terminal detection module is used for detecting a termination signal, acquiring the quality of the solid wax at the moment when the termination signal is detected, comparing the quality with the content range to be received to acquire a complete stop signal and a partial start signal, acquiring the residual collection quantity when the partial start signal is received, and processing the residual collection quantity and the power of the air inlet of the target equipment to acquire the opening quantity and the opening time of the target equipment.
As a further aspect of the present invention, the method for obtaining the standard content value and the standard collection rate includes:
s1: acquiring basic information of processing of a processing material by target equipment in the previous stage time by taking the current time as a reference, wherein the stage time is a threshold value, the processing material is a metal material processed by the target equipment, and the basic information refers to the weight of the processing material, the wax content in the processing material and the collection amount of gaseous wax after the vacuum dewaxing of the target equipment is finished every time;
s2: dividing the wax content in each processed material by the weight of the corresponding processed material to obtain unit wax content values Li, i=1, 2, 3, … … and I of the processed material, wherein the processing operation of the processing equipment is performed I times in the stage time;
s3: the unit wax value Li is firstly averagedProcessing to obtain unit wax average value La byObtaining a deviation value Ul;
when Ul is less than or equal to Uy, the unit wax value Li is used as the standard content value of the processing material, when Ul is more than Uy, the wax content in the processing material is in a fluctuation state, the mode Lz in the unit wax value Li is firstly obtained, the rest data are marked as Lm, m is a positive integer, m is E I, and the method comprises the following steps ofObtaining a standard content value LB of a processed material, wherein Uy is a preset value;
s4: simultaneously, the weight Zi, the wax content Li and the gaseous wax collecting quantity Qi of the target equipment in the stage time are in one-to-one correspondence, and the gaseous wax collecting quantity Qi is divided by the wax content Li to obtain the collecting rate SJi of the target equipment on the wax content in each processing;
s5: the collection rate SJi is processed in the same manner as in step S3 described above to obtain the standard collection rate BS of the target device.
As a further aspect of the present invention, the method for acquiring the stop time value includes:
ST1: firstly, obtaining the weight of the material to be processed, multiplying the weight by a standard content LB to obtain an actual wax value in the material to be processed, and multiplying the actual wax value by a standard collection rate to obtain the receivable content of the material to be processed;
ST2: acquiring the quality Mj of the solid wax in real time, and simultaneously adopting a mathematical simulation model for processing to acquire a relation curve of the quality and time of the solid wax;
acquiring the number j of real-time acquisition, inputting the acquired real-time data into a mathematical simulation model to perform simulation processing to obtain a relation curve when the number j of real-time acquisition reaches a threshold value X1, sequentially inputting the acquired real-time data into the relation curve, correcting the relation curve to obtain a correction factor until the sum of the quality of the solid wax detected in real time is a threshold value X2, taking the relation curve at the moment as a final prediction curve, and multiplying the final prediction curve by the correction factor to obtain an actual change curve of the target equipment;
ST3: and obtaining an actual change curve, and substituting the content of the current processing into the actual change curve to obtain a corresponding stop time value.
As a further aspect of the present invention, the method for obtaining the correction factor includes:
f1: marking the relation curve obtained for the first time as L1, acquiring the predicted collection amount MY1 of the next time period according to the L1, acquiring the actual collection amount Mj at the moment when the next time period is reached, wherein the value of j is 6, and subtracting the predicted collection amount MY1 from the actual collection amount M6 to obtain a deviation value C1;
f2: meanwhile, the actual collection amount M6 is put into a mathematical simulation model again, a relation curve L1 is corrected to obtain a relation curve L2, the estimated collection amount MY2 of the next time period is obtained according to the relation curve L2, meanwhile, when the next time period is reached, the actual collection amount M7 is obtained, and meanwhile, the estimated collection amount MY2 is subtracted from the actual collection amount M7 at the moment to obtain a deviation value C2;
f3: by analogy, a plurality of deviation values Cn are obtained, wherein n is a positive integer greater than 0;
f4: by usingThe correction factor YX is obtained.
As a further scheme of the invention, the method for acquiring the complete stop signal and the partial start signal comprises the following steps:
when the quality of the solid wax is in the receivable content range, a complete stop signal is directly generated at the moment;
when the mass of the solid wax is less than the value of the receivable content range, the partial start signal is generated, the receivable content range value refers to the receivable content multiplied by a1, and a1 is a threshold value.
As a further aspect of the present invention, when a partial start signal is generated, subtracting the mass of the solid wax at that time from the receivable content to obtain a residual collection amount SJ;
extracting the flow rate of the output gas, labeled VL, using the equationThe formula Q1 is calculated to obtain the friction coefficient f of the gas, and the formula Q1 is:wherein K1 and K2 are preset factors respectively, WD is the temperature of the target equipment when the target equipment is operated, and P is the pressure of the target equipment when the target equipment is operated;
obtaining the starting number and the starting time of the target equipment by adopting a formula Q2, wherein the specific expression mode of the formula Q2 is as follows:，/>d is the reference coefficient of the target device, +.>And->Correcting factors respectively, SL is the opening quantity, ts is the opening time, G is the power required for opening one air inlet, ZG is the power consumed by opening the air inlets of the SL quantity in the opening time T, then the data in a formula Q2 are put into a mathematical simulation model for linear simulation, and the optimal solution is used as the opening time and the opening quantity of target equipment.
As a further scheme of the invention, the start-stop control module is used for receiving part of start signals, extracting the start quantity in the part of start signals, starting the air inlet in the target equipment, timing the target equipment according to the start time, and generating a complete stop signal when the countdown of the start time is finished.
As a further aspect of the present invention, the apparatus further includes a vacuum pumping module for receiving the complete stop signal, and pumping the sintering chamber of the target device to the pressure preset value Py when the complete stop signal is detected.
The invention further provides a device information acquisition module for acquiring basic information of target devices, wherein the target devices refer to the intelligent vacuum dewaxing sintering furnace applying the system, and the basic information refers to positions of air inlets in the target devices and the number of the corresponding air inlets and is transmitted to the integrated analysis module.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, historical data of target equipment is analyzed through an inertial data acquisition module to obtain a standard content value and a standard collection rate of a processed material, then a relation curve between solid wax and time acquired in real time is analyzed through an integrated analysis module, data acquired each time is input into the relation curve to be corrected to obtain an actual change curve, the content to be received in the processing is input into the actual change curve to obtain a stop time value, the target equipment generates a stop signal according to the stop time value, and the target equipment is automatically controlled to stop inputting gas, so that the input time of the gas is accurately controlled, and the waste of gas resources is reduced;
the invention also provides a terminal detection module, when the terminal detection module receives the termination signal, the quality of the collected solid wax is verified to obtain a complete stop signal and a partial start-stop signal, the quality of the collected gaseous wax is verified again, the residual quantity of the solid wax in the target equipment is reduced, the cleanliness of the equipment is improved, when the partial start-stop signal is generated, the residual collection quantity is analyzed to obtain the starting quantity and the starting time of the target equipment, so that the power consumed by the target equipment is the lowest when the target equipment operates again, and the energy is saved.
Drawings
FIG. 1 is a schematic diagram of a system frame of the present invention;
fig. 2 is a schematic diagram of a flow frame of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 and 2, the application provides an automatic start-stop system of an intelligent vacuum dewaxing sintering furnace, which comprises an equipment information acquisition module, an inertial data acquisition module, an information detection module, an integrated analysis module, a content detection module and a start-stop control module;
the device information acquisition module is used for acquiring basic information of target devices, wherein the target devices refer to an intelligent vacuum dewaxing sintering furnace applying the system, the basic information refers to positions of air inlets and corresponding number of the air inlets in the target devices, and the basic information is to be described herein.
The inertial data acquisition module is used for acquiring inertial data of the processing material, wherein the inertial data comprises a standard content value of the processing material and a standard collection rate of target equipment, and the specific acquisition method comprises the following steps:
s1: acquiring basic information of processing of a processing material by target equipment in the previous stage time by taking the current time as a reference, wherein the stage time is set to be one month in the embodiment, the processing material is a metal material processed by the target equipment, and the basic information refers to the weight of the processing material, the wax content in the processing material and the collection amount of gaseous wax after the vacuum dewaxing of the target equipment is finished every time;
s2: dividing the wax content in each processed material by the weight of the corresponding processed material to obtain unit wax content values Li, i=1, 2, 3, … … and I of the processed material, wherein the processing operation of the processing equipment is performed I times in the stage time;
s3: firstly, carrying out average treatment on a unit wax value Li to obtain a unit wax value La, adoptingObtaining a deviation value Ul;
when Ul is less than or equal to Uy, the unit wax value Li is used as the standard content value of the processing material, when Ul is more than Uy, the wax content in the processing material is in a fluctuation state, the mode Lz in the unit wax value Li is firstly obtained, the rest data are marked as Lm, m is a positive integer, m is E I, and the method comprises the following steps ofObtaining a standard content value LB of the processed material, wherein Uy is a preset value, and the specific value is taken by a person skilled in the art;
s4: simultaneously, the weight Zi, the wax content Li and the gaseous wax collecting quantity Qi of the target equipment in the stage time are in one-to-one correspondence, and the gaseous wax collecting quantity Qi is divided by the wax content Li to obtain the collecting rate SJi of the target equipment on the wax content in each processing;
s5: processing the collection rate SJi in the same manner as in the step S3 to obtain a standard collection rate BS of the target device, where the threshold is set to Sy, and the specific value thereof is taken by a person skilled in the art;
s5: the inertial data acquisition module respectively transmits the inertial data to the integrated analysis module;
the information detection module is used for detecting operation information of the target equipment, wherein the operation information comprises flow rate, pressure intensity and temperature of each input gas position when the target equipment operates;
the content detection module is used for cooling the gas wax carried out in the output gas to obtain solid wax, and simultaneously acquiring the mass of the solid wax in real time and transmitting the mass of the solid wax to the integrated analysis module, and specifically, the manner of acquiring the mass of the solid wax in real time by the content detection module is as follows:
setting a detection time T, wherein the running time of the equipment is initial time 0, acquiring the quality of the solid wax every time T, and marking the quality as Mj, j=1, 2, … … and J, wherein the detection time T is a preset value, and in the embodiment, the detection time T is set to be 3min;
the integrated analysis module is used for analyzing the received data, and the specific analysis method comprises the following steps:
ST1: firstly, obtaining the weight of the material to be processed, multiplying the weight by a standard content LB to obtain an actual wax value in the material to be processed, and multiplying the actual wax value by a standard collection rate to obtain the receivable content of the material to be processed;
ST2: the quality Mj of the solid wax is obtained in real time, and meanwhile, a mathematical simulation model is adopted for processing to obtain a relation curve of the quality of the solid wax and time;
further, the number j of real-time collection is obtained, when the number j of real-time collection reaches a threshold value X1, the collected real-time data is input into a mathematical simulation model to be subjected to simulation processing to obtain a relation curve, the threshold value X1 is 5 in the embodiment, meanwhile, when the data collected in real time later is sequentially input into the relation curve, the relation curve is corrected to obtain a correction factor, until the sum of the quality of the solid wax detected in real time is the threshold value X2, the relation curve at the moment is taken as a final prediction curve, the final prediction curve is multiplied by the correction factor to obtain an actual change curve of the target equipment, and in the embodiment, the threshold value X2 is multiplied by 85% of the receivable content of the processing;
ST3: acquiring an actual change curve, substituting the content of the current processing into the actual change curve to obtain a corresponding stop time value, and transmitting the obtained time value to a start-stop control module by an integrated analysis module;
the start-stop control module is used for respectively controlling a plurality of air inlets in the sintering furnace, when the start-stop control module receives a stop time value, the time at the moment is timed, and when the stop time value is reached, the start-stop control module is used for generating a termination signal and automatically controlling target equipment to stop air inlet;
example two
The difference between the embodiment and the embodiment is that, based on the embodiment one, the specific method for obtaining the correction factor in the integrated analysis module in this embodiment is as follows:
f1: firstly, marking the relation curve obtained for the first time as L1, obtaining the predicted collection amount MY1 of the next time period according to the L1, obtaining the actual collection amount Mj at the moment when the next time period is reached, wherein the value of j is 6, and subtracting the predicted collection amount MY1 from the actual collection amount M6 to obtain a deviation value C1;
f2: meanwhile, the actual collection amount M6 is put into a mathematical simulation model again, a relation curve L1 is corrected to obtain a relation curve L2, the estimated collection amount MY2 of the next time period is obtained according to the relation curve L2, meanwhile, when the next time period is reached, the actual collection amount M7 is obtained, and meanwhile, the estimated collection amount MY2 is subtracted from the actual collection amount M7 at the moment to obtain a deviation value C2;
f3: by analogy, a plurality of deviation values Cn are obtained, wherein n is a positive integer greater than 0;
f4: by usingObtaining a correction factor YX;
example III
The difference between the first embodiment and the second embodiment is that the embodiment further includes a terminal detection module, the terminal detection module is configured to detect a final solid wax quality, and when the terminal detection module detects the termination signal, the terminal detection module obtains the solid wax quality at this time, and compares the solid wax quality with the receivable content:
when the quality of the solid wax is in the receivable content range, a complete stop signal is directly generated at the moment;
when the mass of the solid wax is smaller than the value of the content range to be received, generating a partial start signal, wherein the value of the content range to be received is multiplied by a1, a1 is a threshold value, and the value is 0.98 in the embodiment, and the specific method for generating the partial start signal is as follows:
FF1: subtracting the mass of the solid wax at the moment from the receivable content to obtain a residual collection amount SJ;
FF2: extracting the flow rate of output gas, marking as VL, and calculating by adopting a formula Q1 to obtain the friction coefficient f of the gas, wherein the formula Q1 is as follows:wherein K1 and K2 are preset factors respectively, WD is the temperature of the target equipment when the target equipment is operated, and P is the pressure of the target equipment when the target equipment is operated;
FF3: obtaining the starting number and the starting time of the target equipment by adopting a formula Q2, wherein the specific expression mode of the formula Q2 is as follows:，/>d is the reference coefficient of the target device, +.>And->Correcting factors respectively, SL is the opening quantity, ts is the opening time, G is the power required for opening one air inlet, ZG is the power consumed by opening the air inlet with the SL quantity in the opening time T, then, putting the data in a formula Q2 into a mathematical simulation model for linear simulation, and taking the optimal solution as the opening time and the opening quantity of target equipment;
then, the starting time and the starting number of the target equipment are used as partial starting information and are transmitted to a starting and stopping control module;
the start-stop control module is used for receiving part of start signals, extracting the start quantity in the part of start signals, starting the air inlet in the target equipment, timing the target equipment according to the start time, and generating a complete stop signal when the countdown of the start time is finished;
example IV
The embodiment is different from the first embodiment, the second embodiment and the third embodiment on the basis of the first embodiment, the second embodiment and the third embodiment in that the embodiment further comprises a vacuum extraction module;
the vacuum extraction module is used for receiving the complete stop signal in the start-stop control module, and extracting the sintering chamber of the target equipment to a pressure preset value Py when the complete stop signal is detected by the vacuum extraction module, wherein the specific Py value is set by a person skilled in the art;
example five
The present embodiment is used to combine and implement the first, second, third and fourth embodiments.
The partial data in the formula are all obtained by removing dimension and taking the numerical value for calculation, and the formula is a formula closest to the real situation obtained by simulating a large amount of collected data through software; the preset parameters and the preset threshold values in the formula are set by those skilled in the art according to actual conditions or are obtained through mass data simulation.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (9)
1. Automatic start-stop system of intelligent vacuum dewaxing sintering furnace, its characterized in that includes:
the inertial data acquisition module acquires inertial data of target equipment, acquires basic information of target equipment processing, extracts wax content of each processing in the basic information and weight of processing materials, processes the basic information to obtain standard content values, and then corresponds the standard content values of each processing to the collection amount of the processed gaseous wax one by one and processes the standard content values to obtain standard collection rate;
the content detection module is used for acquiring the quality of the solid wax of the target equipment in real time when in operation;
the integrated analysis module is used for analyzing the quality of the collected solid wax to obtain a stop time value, obtaining the receivable content of the processing by obtaining the weight of the material to be processed, processing the quality of the solid wax collected in real time to obtain a relation curve of the quality of the solid wax and time, inputting the quality of the solid wax collected in real time into the relation curve for correction to obtain an actual change curve, and then inputting the receivable content into the actual change curve to obtain the stop time value;
the start-stop control module is used for receiving the stop time value, timing the time, generating a stop signal when the stop time value is reached, and automatically controlling the target equipment to stop air intake;
the terminal detection module is used for detecting a termination signal, acquiring the quality of the solid wax at the moment when the termination signal is detected, comparing the quality with the content range to be received to acquire a complete stop signal and a partial start signal, acquiring the residual collection quantity when the partial start signal is received, and processing the residual collection quantity and the power of the air inlet of the target equipment to acquire the opening quantity and the opening time of the target equipment.
2. The automatic start-stop system of an intelligent vacuum dewaxing sintering furnace according to claim 1, wherein the standard content value and the standard collection rate are obtained by the following steps:
s1: acquiring basic information of processing of a processing material by target equipment in the previous stage time by taking the current time as a reference, wherein the stage time is a threshold value, the processing material is a metal material processed by the target equipment, and the basic information refers to the weight of the processing material, the wax content in the processing material and the collection amount of gaseous wax after the vacuum dewaxing of the target equipment is finished every time;
s2: dividing the wax content in each processed material by the weight of the corresponding processed material to obtain unit wax content values Li, i=1, 2, 3, … … and I of the processed material, wherein the processing operation of the processing equipment is performed I times in the stage time;
s3: firstly, carrying out average treatment on a unit wax value Li to obtain a unit wax value La, adoptingObtaining a deviation value Ul；
When Ul is less than or equal to Uy, the unit wax value Li is used as the standard content value of the processing material, when Ul is more than Uy, the wax content in the processing material is in a fluctuation state, the mode Lz in the unit wax value Li is firstly obtained, the rest data are marked as Lm, m is a positive integer, m is E I, and the method comprises the following steps ofObtaining a standard content value LB of a processed material, wherein Uy is a preset value;
s4: simultaneously, the weight Zi, the wax content Li and the gaseous wax collecting quantity Qi of the target equipment in the stage time are in one-to-one correspondence, and the gaseous wax collecting quantity Qi is divided by the wax content Li to obtain the collecting rate SJi of the target equipment on the wax content in each processing;
s5: the collection rate SJi is processed in the same manner as in step S3 described above to obtain the standard collection rate BS of the target device.
3. The automatic start-stop system of an intelligent vacuum dewaxing sintering furnace according to claim 1, wherein the method for obtaining the stop time value is as follows:
ST1: firstly, obtaining the weight of the material to be processed, multiplying the weight by a standard content LB to obtain an actual wax value in the material to be processed, and multiplying the actual wax value by a standard collection rate to obtain the receivable content of the material to be processed;
ST2: acquiring the quality Mj of the solid wax in real time, and simultaneously adopting a mathematical simulation model for processing to acquire a relation curve of the quality and time of the solid wax;
acquiring the number j of real-time acquisition, inputting the acquired real-time data into a mathematical simulation model to perform simulation processing to obtain a relation curve when the number j of real-time acquisition reaches a threshold value X1, sequentially inputting the acquired real-time data into the relation curve, correcting the relation curve to obtain a correction factor until the sum of the quality of the solid wax detected in real time is a threshold value X2, taking the relation curve at the moment as a final prediction curve, and multiplying the final prediction curve by the correction factor to obtain an actual change curve of the target equipment;
ST3: and obtaining an actual change curve, and substituting the content of the current processing into the actual change curve to obtain a corresponding stop time value.
4. The automatic start-stop system of intelligent vacuum dewaxing sintering furnace according to claim 3, wherein the correction factor obtaining method comprises the following steps:
f1: marking the relation curve obtained for the first time as L1, acquiring the predicted collection amount MY1 of the next time period according to the L1, acquiring the actual collection amount Mj at the moment when the next time period is reached, wherein the value of j is 6, and subtracting the predicted collection amount MY1 from the actual collection amount M6 to obtain a deviation value C1;
f2: meanwhile, the actual collection amount M6 is put into a mathematical simulation model again, a relation curve L1 is corrected to obtain a relation curve L2, the estimated collection amount MY2 of the next time period is obtained according to the relation curve L2, meanwhile, when the next time period is reached, the actual collection amount M7 is obtained, and meanwhile, the estimated collection amount MY2 is subtracted from the actual collection amount M7 at the moment to obtain a deviation value C2;
f3: by analogy, a plurality of deviation values Cn are obtained, wherein n is a positive integer greater than 0;
f4: by usingThe correction factor YX is obtained.
5. The intelligent automatic start-stop system of vacuum dewaxing sintering furnace according to claim 1, wherein the method for obtaining the complete stop signal and the partial start signal is as follows:
when the quality of the solid wax is in the receivable content range, a complete stop signal is directly generated at the moment;
when the mass of the solid wax is less than the value of the receivable content range, the partial start signal is generated, the receivable content range value refers to the receivable content multiplied by a1, and a1 is a threshold value.
6. The automatic start-stop system of an intelligent vacuum dewaxing sintering furnace according to claim 5, wherein when generating a partial start signal, subtracting the solid wax mass at the moment from the receivable content to obtain a residual collection amount SJ;
extracting the flow rate of output gas, marking as VL, and calculating by adopting a formula Q1 to obtain the friction coefficient f of the gas, wherein the formula Q1 is as follows:wherein K1 and K2 are preset factors respectively, WD is the temperature of the target equipment when the target equipment is operated, and P is the pressure of the target equipment when the target equipment is operated;
obtaining the starting number and the starting time of the target equipment by adopting a formula Q2, wherein the specific expression mode of the formula Q2 is as follows:，/>d is the reference coefficient of the target device, +.>And->Correcting factors respectively, SL is the opening quantity, ts is the opening time, G is the power required for opening one air inlet, ZG is the power consumed by opening the air inlets of the SL quantity in the opening time T, then the data in a formula Q2 are put into a mathematical simulation model for linear simulation, and the optimal solution is used as the opening time and the opening quantity of target equipment.
7. The intelligent automatic start-stop system of vacuum dewaxing sintering furnace according to claim 1, wherein the start-stop control module is configured to receive a part of start-up signals, extract the start number in the part of start-up signals, start the air inlet in the target equipment, time the target equipment according to the start time, and generate a complete stop signal when the countdown of the start time is completed.
8. The intelligent automatic start-stop system of a vacuum dewaxing sintering furnace according to claim 1, further comprising a vacuum extraction module for receiving a complete stop signal, when the complete stop signal is detected, the vacuum extraction module extracting the sintering chamber of the target device to a pressure preset value Py.
9. The automatic start-stop system of the intelligent vacuum dewaxing sintering furnace according to claim 1, further comprising an equipment information acquisition module, wherein the equipment information acquisition module is used for acquiring basic information of target equipment, the target equipment refers to the intelligent vacuum dewaxing sintering furnace applying the system, and the basic information refers to positions of air inlets in the target equipment and the number of the corresponding air inlets and is transmitted to the integrated analysis module.
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