CN113283057A - Melting mixing furnace for multiple alloy materials - Google Patents
Melting mixing furnace for multiple alloy materials Download PDFInfo
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- CN113283057A CN113283057A CN202110469644.5A CN202110469644A CN113283057A CN 113283057 A CN113283057 A CN 113283057A CN 202110469644 A CN202110469644 A CN 202110469644A CN 113283057 A CN113283057 A CN 113283057A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
- G06F17/13—Differential equations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/08—Fluids
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
Abstract
The invention belongs to the technical field of smelting, and discloses a melting mixing furnace for multiple alloy materials, which comprises: the device comprises a data acquisition module, a weighing module, a parameter setting module, a central control module, a fuel selection module, a temperature detection module, a melting state detection module, a fuel control module, a feeding module, a sealing detection module, a preheating module and a cooling module. The invention can select fuel based on the melted alloy, and improves the combustion efficiency of the melting furnace, reduces the total amount of generated smoke, improves the energy saving amount of the fan, reduces the pollution discharge amount, reduces the loss, realizes the full-automatic control of the melting furnace, lightens the labor intensity of operators, improves the multiple effects of the production operation rate, and obtains the multiple benefits of energy conservation, emission reduction, yield increase and quality guarantee.
Description
Technical Field
The invention belongs to the technical field of smelting, and particularly relates to a melting mixing furnace for multiple alloy materials.
Background
At present: an alloy is a substance with metallic characteristics, which is synthesized by two or more metals and metals or nonmetals through a certain method. Typically by melting to a homogeneous liquid and solidifying. According to the number of constituent elements, binary alloys, ternary alloys, and multi-element alloys can be classified.
The existing alloy melting furnace is mainly used for adding fuel and feeding and discharging materials in the melting process through manual control, the melting process cannot be detected in real time, and the melting control cannot be intelligently carried out.
Through the above analysis, the problems and defects of the prior art are as follows: the existing alloy melting furnace is mainly used for adding fuel and feeding and discharging materials in the melting process through manual control, the melting process cannot be detected in real time, and the melting control cannot be intelligently carried out.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a melting and mixing furnace for multi-alloy materials.
The present invention is achieved by a melting and mixing furnace for multiple alloy materials, comprising:
the data acquisition module is connected with the central control module and is used for acquiring the type, the quantity, the purity and other information of the melted alloy material;
the weighing module is connected with the central control module and is used for weighing the weight or other data of the raw material by using the weighing instrument based on the acquired related information;
the parameter setting module is connected with the central control module and is used for setting the melting parameters by using input equipment;
the central control module is connected with the data acquisition module, the weighing module, the parameter setting module, the fuel selection module, the temperature detection module, the melting state detection module, the fuel control module, the putting module, the sealing detection module, the preheating module and the cooling module and is used for controlling each module to normally work by utilizing a single chip microcomputer or a controller;
the normal work of each module controlled by the single chip microcomputer or the controller comprises the following steps:
establishing a gray model GM (1,1) model:
X(0)for the original non-negative data sequence: x(0)＝[x(0)(1),x(0)(2),...,x(0)(n)]To X(0)Performing an accumulation generation operation to obtain X(0)1-AGO sequence of (A), X(1)＝[x(1)(1),x(1)(2),...,x(1)(n)]Wherein, in the step (A),
for sequence X(1)Performing adjacent mean value generation operation to obtain X(1)Is generated by the adjacent mean generation sequence Z(1)Wherein z is(1)(k)＝0.5[x(1)(k)+x(1)(k-1)],k＝1,2,...,n；
The gray differential equation for GM (1,1) is obtained: x is the number of(0)(k)+az(1)(k) U, and the corresponding whitening equation:
wherein a is a development coefficient, and u is a gray effect amount;
and (3) solving a and u: using least squares
Wherein the content of the first and second substances,
Yn＝[x(0)(2)x(0)(3)...x(0)(n)]t; the solution of the whitening equation is
The time response sequence of the corresponding gray differential equation is: i.e. the value at time k
To the sequence
Performing an accumulation and subtraction operation, i.e. performing the inverse operation of the accumulation and generation, and recording the operation as IAGO, to obtain a prediction sequence
Wherein the content of the first and second substances,
the predicted value at the time k + d is:
d is the system lag time;
the fuel selection module is connected with the central control module and used for determining molten fuel based on the acquired data of the alloy material to be molten and the melting parameters;
the temperature detection module is connected with the central control module and is used for detecting the temperature of each area in the melting furnace by using the temperature sensor;
the melting state detection module is connected with the central control module and used for determining the melting state of the alloy material based on the discharged gas;
and the fuel control module is connected with the central control module and is used for controlling the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state.
Further, the melting and mixing furnace for the multi-alloy material further comprises:
the feeding module is connected with the central control module and is used for feeding the multi-alloy material into the melting furnace;
the sealing detection module is connected with the central control and is used for carrying out sealing detection on the melting furnace;
the preheating module is connected with the central control module and is used for preheating the melting furnace;
and the cooling module is connected with the central control module and is used for cooling the melting furnace.
Further, the determining the molten fuel based on the acquired alloy material data to be melted and the melting parameter includes:
(1) calculating the equivalent content of combustion elements in the alloy according to the quantity, the purity and the melting point of the alloy material to be melted;
(2) calculating to obtain the equivalent ash value of the fuel according to the equivalent content of the combustion elements in the obtained alloy and the useful components of the fuel;
(3) and optimally selecting the fuel according to the obtained equivalent ash value, namely selecting the fuel with the lower equivalent ash value for energy supply.
Further, the determining the melting state of the alloy material based on the discharged gas includes:
detecting melting parameters of the melting furnace; according to the melting parameters, calling prestored historical parameters of the melting furnace; wherein the historical parameters comprise historical melting parameters of a melting furnace; determining the composition change trend of the gas exhausted by the melting furnace by using the historical parameters; and determining the melting state of the alloy according to the composition change trend.
Further, the melting parameters include: the humidity of the gas exiting the melting furnace, the temperature of the gas, the gas composition and the composition content of the gas.
Further, the controlling of the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state includes:
1) collecting a yield value, a heat consumption value and a fuel gas heat value; calculating a total fuel flow value according to the yield value, the heat consumption value and the fuel gas heat value;
2) distributing the upper layer fuel flow and the lower layer fuel flow according to the total fuel flow value; calculating an upper layer combustion-supporting material control model and a lower layer combustion-supporting material control model according to the upper layer fuel flow and the lower layer fuel flow;
3) and the flow rates of the upper layer fuel and the lower layer fuel are controlled by PID.
Further, the controlling of the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state further comprises:
detecting the opening degree of each combustion-supporting air door, comparing the opening degree value with the maximum opening degree with the set target values of the upper limit and the lower limit of the combustion-supporting air door, and judging whether the combustion-supporting air door is in an overvoltage, undervoltage or normal air supply state;
when the opening degree of the air door of the largest combustion-supporting air door is detected to be smaller than a target lower limit set value, the air door is judged to be in an overpressure air supply state, a controller calculates a lower new target air pressure, a combustion-supporting fan is controlled to operate at the new target air pressure, meanwhile, the opening degree of the combustion-supporting air door is automatically adjusted according to the air-fuel ratio of a melting furnace, the air-fuel ratio is kept unchanged, and the working condition requirement is met;
when the opening degree of the air door of the maximum combustion-supporting air door is detected to reach or exceed a target upper limit set value, the air door is judged to be in an under-pressure air supply state, the controller calculates a higher new target air pressure and controls the combustion-supporting fan to operate at the new target air pressure, so that the air-fuel ratio of the melting furnace is maintained in a process standard control range, and the working condition requirement is met.
Further, the controlling of the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state further includes:
when the air door opening degree of the maximum combustion-supporting air door is detected to be smaller than the target upper limit set value and larger than the target lower limit set value, the normal air supply state is judged, the original air supply pressure is kept unchanged by the controller, the combustion-supporting air supply system is maintained to stably operate, and the working condition requirement is met.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention can select fuel based on the melted alloy, and improves the combustion efficiency of the melting furnace, reduces the total amount of generated smoke, improves the energy saving amount of the fan, reduces the pollution discharge amount, reduces the loss, realizes the full-automatic control of the melting furnace, lightens the labor intensity of operators, improves the multiple effects of the production operation rate, and obtains the multiple benefits of energy conservation, emission reduction, yield increase and quality guarantee.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
FIG. 1 is a schematic view of a melting and mixing furnace for multiple alloy materials according to an embodiment of the present invention;
in the figure: 1. a data acquisition module; 2. a weighing module; 3. a parameter setting module; 4. a central control module; 5. a fuel selection module; 6. a temperature detection module; 7. a molten state detection module; 8. a fuel control module; 9. a releasing module; 10. a seal detection module; 11. a preheating module; 12. and a cooling module.
FIG. 2 is a flow chart of a method for determining molten fuel based on acquired alloying material data to be melted and melting parameters as provided by an embodiment of the present invention.
FIG. 3 is a flow chart of a method for determining a melting state of an alloy material based on a discharged gas according to an embodiment of the present invention.
Fig. 4 is a flowchart of a method for controlling fuel delivery rate and combustion supporting based on detected temperature and melting state according to an embodiment of the present invention.
FIG. 5 is a flow chart of a method for fuel control based on sensed temperature and melt status as provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to solve the problems in the prior art, the invention provides a melting and mixing furnace for multiple alloy materials, and the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a melting and mixing furnace for multiple alloy materials according to an embodiment of the present invention includes:
the data acquisition module 1 is connected with the central control module 4 and is used for acquiring the type, quantity, purity and other information of the melted alloy material;
the weighing module 2 is connected with the central control module 4 and is used for weighing the weight or other data of the raw material by using the weighing instrument based on the acquired related information;
the parameter setting module 3 is connected with the central control module 4 and is used for setting melting parameters by using input equipment;
the central control module 4 is connected with the data acquisition module 1, the weighing module 2, the parameter setting module 3, the fuel selection module 5, the temperature detection module 6, the melting state detection module 7, the fuel control module 8, the feeding module 9, the sealing detection module 10, the preheating module 11 and the cooling module 12 and is used for controlling the normal work of each module by utilizing a single chip microcomputer or a controller;
the fuel selection module 5 is connected with the central control module 4 and used for determining molten fuel based on the acquired data of the alloy materials to be molten and the melting parameters;
the temperature detection module 6 is connected with the central control module 4 and is used for detecting the temperature of each area in the melting furnace by using a temperature sensor;
a molten state detection module 7 connected with the central control module 4 for determining the molten state of the alloy material based on the discharged gas;
the fuel control module 8 is connected with the central control module 4 and is used for controlling the fuel feeding rate and combustion supporting based on the detected temperature and the melting state;
the feeding module 9 is connected with the central control module 4 and used for feeding the multi-alloy material into the melting furnace;
the sealing detection module 10 is connected with the central control 4 and is used for carrying out sealing detection on the melting furnace;
the preheating module 11 is connected with the central control module 4 and is used for preheating the melting furnace;
and the cooling module 12 is connected with the central control module 4 and is used for cooling the melting furnace.
The method for controlling each module to normally work by utilizing the single chip microcomputer or the controller provided by the embodiment of the invention comprises the following steps:
establishing a gray model GM (1,1) model:
x (0) is the original non-negative data sequence: x(0)＝[x(0)(1),x(0)(2),...,x(0)(n)]Performing an accumulation generation operation on X (0) to obtain a 1-AGO sequence of X (0), X(1)＝[x(1)(1),x(1)(2),...,x(1)(n)]Wherein, in the step (A),
performing a close-proximity mean generation operation on the sequence X (1) to obtain a close-proximity mean generation sequence Z (1) of the sequence X (1), wherein Z is(1)(k)＝0.5[x(1)(k)+x(1)(k-1)],k＝1,2,...,n；
The gray differential equation for GM (1,1) is obtained: x (0) (k) + az (1) (k) ═ u, and the corresponding whitening equation:
wherein a is a development coefficient, and u is a gray effect amount;
and (3) solving a and u: using least squares
Wherein the content of the first and second substances,
Yn＝[x(0)(2)x(0)(3)...x(0)(n)]t; the solution of the whitening equation is
The time response sequence of the corresponding gray differential equation is: i.e. the value at time k
To the sequence
Performing an accumulation and subtraction operation, i.e. performing the inverse operation of the accumulation and generation, and recording the operation as IAGO, to obtain a prediction sequence
Wherein the content of the first and second substances,
the predicted value at the time k + d is:
d is the system lag time.
As shown in fig. 2, the determining of the melting fuel based on the acquired data of the alloy material to be melted and the melting parameters provided by the embodiment of the present invention includes:
s101, calculating the equivalent content of combustion elements in the alloy according to the quantity, the purity and the melting point of the alloy material to be melted;
s102, calculating to obtain an equivalent ash value of the fuel according to the equivalent content of the combustion elements in the obtained alloy and the useful components of the fuel;
s103, optimizing and selecting the fuel according to the obtained equivalent ash value, namely selecting the fuel with the lower equivalent ash value for energy supply.
As shown in fig. 3, the determining the melting state of the alloy material based on the discharged gas according to the embodiment of the present invention includes:
s201, detecting melting parameters of a melting furnace; according to the melting parameters, calling prestored historical parameters of the melting furnace; wherein the historical parameters comprise historical melting parameters of a melting furnace;
s202, determining the component change trend of the exhaust gas of the melting furnace by using the historical parameters; and determining the melting state of the alloy according to the composition change trend.
The melting parameters provided by the embodiment of the invention comprise: the humidity of the gas exiting the melting furnace, the temperature of the gas, the gas composition and the composition content of the gas.
As shown in fig. 4, the controlling of the fuel feeding rate and the combustion-supporting based on the detected temperature and the melting state according to the embodiment of the present invention includes:
s301, collecting a yield value, a heat consumption value and a fuel gas heat value; calculating a total fuel flow value according to the yield value, the heat consumption value and the fuel gas heat value;
s302, distributing the upper layer fuel flow and the lower layer fuel flow according to the total fuel flow value; calculating an upper layer combustion-supporting material control model and a lower layer combustion-supporting material control model according to the upper layer fuel flow and the lower layer fuel flow;
and S303, controlling the flow rates of the upper layer fuel and the lower layer fuel by using PID.
As shown in fig. 5, the controlling of the fuel feeding rate and the combustion-supporting based on the detected temperature and the melting state according to the embodiment of the present invention further includes:
s401, detecting the opening degree of each combustion air door, comparing the opening degree value with the maximum opening degree with the set target values of the upper limit and the lower limit of the combustion air door, and judging whether the combustion air door is in an overvoltage, undervoltage or normal air supply state;
s402, when the air door opening of the largest combustion-supporting air door is detected to be smaller than a target lower limit set value, the situation that the air door is in an overpressure air supply state is judged at the moment, a controller calculates a lower new target air pressure, the combustion-supporting air fan is controlled to operate at the new target air pressure, meanwhile, the opening of the combustion-supporting air door is automatically adjusted according to the air-fuel ratio of a melting furnace, the air-fuel ratio is kept unchanged, and the working condition requirement is met;
s403, when the opening degree of the air door of the largest combustion-supporting air door is detected to reach or exceed a target upper limit set value, judging that the air door is in an under-pressure air supply state, calculating a higher new target air pressure by a controller, controlling a combustion-supporting fan to operate at the new target air pressure, and maintaining the air-fuel ratio of the melting furnace within a process standard control range to meet working condition requirements;
s404, when the air door opening degree of the largest combustion-supporting air door is detected to be smaller than the target upper limit set value and larger than the target lower limit set value, the air door is judged to be in a normal air supply state, the controller keeps the original air supply pressure unchanged, the combustion-supporting air supply system is maintained to run stably, and the working condition requirement is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.
Claims (10)
1. A melting and mixing furnace for multiple alloy materials, comprising:
the data acquisition module is connected with the central control module and is used for acquiring the type, the quantity, the purity and other information of the melted alloy material;
the weighing module is connected with the central control module and is used for weighing the weight or other data of the raw material by using the weighing instrument based on the acquired related information;
the parameter setting module is connected with the central control module and is used for setting the melting parameters by using input equipment;
the central control module is connected with the data acquisition module, the weighing module, the parameter setting module, the fuel selection module, the temperature detection module, the melting state detection module, the fuel control module, the putting module, the sealing detection module, the preheating module and the cooling module and is used for controlling each module to normally work by utilizing a single chip microcomputer or a controller;
the normal work of each module controlled by the single chip microcomputer or the controller comprises the following steps:
establishing a gray model GM (1,1) model:
x (0) is the original non-negative data sequence: x(0)＝[x(0)(1),x(0)(2),...,x(0)(n)]Performing an accumulation generation operation on X (0) to obtain a 1-AGO sequence of X (0), X(1)＝[x(1)(1),x(1)(2),...,x(1)(n)]Wherein, in the step (A),
performing a close-proximity mean generation operation on the sequence X (1) to obtain a close-proximity mean generation sequence Z (1) of the sequence X (1), wherein Z is(1)(k)＝0.5[x(1)(k)+x(1)(k-1)],k＝1,2,...,n；
The gray differential equation for GM (1,1) is obtained: x (0) (k) + az (1) (k) ═ u, and the corresponding whitening equation:
wherein a is a development coefficient, and u is a gray effect amount;
and (3) solving a and u: using least squares
Wherein the content of the first and second substances,
Yn＝[x(0)(2)x(0)(3)...x(0)(n)]t; the solution of the whitening equation is
The time response sequence of the corresponding gray differential equation is: i.e. the value at time k
To the sequence
Performing an accumulation and subtraction operation, i.e. performing the inverse operation of the accumulation and generation, and recording the operation as IAGO, to obtain a prediction sequence
Wherein the content of the first and second substances,
the predicted value at the time k + d is:
d is the system lag time;
the fuel selection module is connected with the central control module and used for determining molten fuel based on the acquired data of the alloy material to be molten and the melting parameters;
the temperature detection module is connected with the central control module and is used for detecting the temperature of each area in the melting furnace by using the temperature sensor;
the melting state detection module is connected with the central control module and used for determining the melting state of the alloy material based on the discharged gas;
and the fuel control module is connected with the central control module and is used for controlling the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state.
2. The multi-alloy material melting and mixing furnace of claim 1, further comprising:
the feeding module is connected with the central control module and is used for feeding the multi-alloy material into the melting furnace;
the sealing detection module is connected with the central control and is used for carrying out sealing detection on the melting furnace;
the preheating module is connected with the central control module and is used for preheating the melting furnace;
and the cooling module is connected with the central control module and is used for cooling the melting furnace.
3. The multi-alloy material melting and mixing furnace of claim 1, wherein said determining molten fuel based on the obtained data of the alloy material to be melted and the melting parameters comprises:
(1) calculating the equivalent content of combustion elements in the alloy according to the quantity, the purity and the melting point of the alloy material to be melted;
(2) calculating to obtain the equivalent ash value of the fuel according to the equivalent content of the combustion elements in the obtained alloy and the useful components of the fuel;
(3) and optimally selecting the fuel according to the obtained equivalent ash value, namely selecting the fuel with the lower equivalent ash value for energy supply.
4. The multi-alloy material melting and mixing furnace of claim 1, wherein said determining the melting state of the alloy material based on the discharged gas comprises:
detecting melting parameters of the melting furnace; according to the melting parameters, calling prestored historical parameters of the melting furnace; wherein the historical parameters comprise historical melting parameters of a melting furnace; determining the composition change trend of the gas exhausted by the melting furnace by using the historical parameters; and determining the melting state of the alloy according to the composition change trend.
5. A melting and mixing furnace for multiple alloy materials according to claim 4, wherein said melting parameters include: the humidity of the gas exiting the melting furnace, the temperature of the gas, the gas composition and the composition content of the gas.
6. The melting and mixing furnace for multiple alloy materials according to claim 1, wherein the controlling of the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state comprises:
1) collecting a yield value, a heat consumption value and a fuel gas heat value; calculating a total fuel flow value according to the yield value, the heat consumption value and the fuel gas heat value;
2) distributing the upper layer fuel flow and the lower layer fuel flow according to the total fuel flow value; calculating an upper layer combustion-supporting material control model and a lower layer combustion-supporting material control model according to the upper layer fuel flow and the lower layer fuel flow;
3) and the flow rates of the upper layer fuel and the lower layer fuel are controlled by PID.
7. The melting and mixing furnace for multiple alloy materials according to claim 1, wherein the controlling of the fuel feeding rate and the combustion supporting based on the detected temperature and the melting state further comprises:
detecting the opening degree of each combustion-supporting air door, comparing the opening degree value with the maximum opening degree with the set target values of the upper limit and the lower limit of the combustion-supporting air door, and judging whether the combustion-supporting air door is in an overvoltage, undervoltage or normal air supply state;
when the opening degree of the air door of the largest combustion-supporting air door is detected to be smaller than a target lower limit set value, the air door is judged to be in an overpressure air supply state, a controller calculates a lower new target air pressure, a combustion-supporting fan is controlled to operate at the new target air pressure, meanwhile, the opening degree of the combustion-supporting air door is automatically adjusted according to the air-fuel ratio of a melting furnace, the air-fuel ratio is kept unchanged, and the working condition requirement is met;
when the opening degree of the air door of the maximum combustion-supporting air door is detected to reach or exceed a target upper limit set value, the air door is judged to be in an under-pressure air supply state, the controller calculates a higher new target air pressure and controls the combustion-supporting fan to operate at the new target air pressure, so that the air-fuel ratio of the melting furnace is maintained in a process standard control range, and the working condition requirement is met.
8. The melting and mixing furnace for multiple alloy materials according to claim 1, wherein said controlling the rate of fuel addition and combustion supporting based on the detected temperature and the melting state further comprises:
when the air door opening degree of the maximum combustion-supporting air door is detected to be smaller than the target upper limit set value and larger than the target lower limit set value, the normal air supply state is judged, the original air supply pressure is kept unchanged by the controller, the combustion-supporting air supply system is maintained to stably operate, and the working condition requirement is met.
9. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface for implementing a method of melt mixing furnace control of multiple alloy materials as claimed in any one of claims 1 to 8 when executed on an electronic device.
10. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of melt-mixing a multi-alloy material as recited in any one of claims 1-8.
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