CN116000290A - Automatic feeding control method and system in metallurgical feeding process - Google Patents
Automatic feeding control method and system in metallurgical feeding process Download PDFInfo
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Abstract
The invention discloses an automatic feeding control method and system in a metallurgical feeding process, comprising a dosage control module, a taking-out loss judging module and a metal powder judging module, wherein the dosage control module is used for controlling the dosage of binders in each mixing area, the metal powder judging module is used for judging the cohesiveness of a mixture according to the granularity and giving different binder feeding instructions, the taking-out loss judging module is used for estimating the volatilization condition of the binders according to the taking-out time of the mixture, the dosage control module comprises a flow control valve, a mixing device and a binder supply end, the taking-out loss judging module comprises a mixture shooting unit, a mixture identification module, a volatilization estimating module and a timing unit, and the metal powder judging module comprises a granularity detection module, a detection switching module and a metal powder absorption tube.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to an automatic feeding control method and an automatic feeding control system in a metallurgical feeding process.
Background
The binder used in powder metallurgy molding is generally alcohol, etc., and has the main functions of uniformly mixing and binding various metal powders together and facilitating feeding.
In the process of mixing the metal powder and the adhesive, the mixture in each mixing area is taken out of the forming pond repeatedly to observe the flowing condition of local crystalline phases, then the adhesive is put into the forming pond in batches to achieve the effect of gradual forming, the mixture is exposed in the metal powder in the process of taking out, the volatilization of alcohol in the air is inevitably caused, the superposition of the taking-out times can influence the bonding degree, and the deviation of the bonding effect is caused in the prior art without considering the situation.
In actual molding, the particle size of the product formula is coarser, namely the powder material is less in consumption, the large particles are more in consumption, and the binder is properly reduced when the large particles are larger in size, whereas the binder is properly increased when the particle size is finer, and the prior art only carries out integral estimation according to the metal material and the particle size, so that the condition that the metal powder is unevenly distributed in each molding pool is not considered.
Therefore, it is necessary to design an automatic feed control method and system for a metallurgical feed process that has a good bonding effect.
Disclosure of Invention
The invention aims to provide an automatic feeding control method and an automatic feeding control system in a metallurgical feeding process, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the automatic feeding control method and system in the metallurgical feeding process comprises a dosage control module, a taking-out loss judging module and a metal powder judging module, wherein the dosage control module is used for controlling the dosage of the binder in each mixing area, the metal powder judging module is used for judging the binding degree of the mixture through granularity and giving different binder feeding instructions, and the taking-out loss judging module is used for estimating the volatilization condition of the binder according to the taking-out time of the mixture.
According to the technical scheme, the consumption control module comprises a flow control valve, a mixing device and an adhesive supply end, the taking-out loss judging module comprises a mixture shooting unit, a mixture identification module, a volatilization estimation module and a timing unit, the metal powder judging module comprises a granularity detection module, a detection switching module and a metal powder absorption tube, the flow control valve is connected with the adhesive supply end, the detection switching module is arranged in the metal powder absorption tube, the timing unit is electrically connected with the volatilization estimation module, and the granularity detection module is electrically connected with the detection switching module;
the adhesive supply end is used for bonding the adhesive sprayed out of the mixture, the flow control valve is used for adjusting the flow of the adhesive sprayed out of the mixture, and the mixing device is used for mixing the detected metal powder with the newly added adhesive and then putting the mixture into the forming tank again;
the mixed material shooting unit is used for shooting mixed material images of all mixed areas, the mixed material identification module is used for judging the types of metal powder according to the detected mixed material images, the volatilization estimation module is used for estimating the volatilization condition of the adhesive according to the observed time of each mixed material taken out of the forming pond, and the timing unit is used for calculating the duration time of the mixed material taken out of the forming pond;
the particle size detection module is used for detecting the particle size of non-caking materials on the surface of the mixture to judge the bonding degree of the mixture, the detection switching module is used for switching the types of the mixture to be detected, and the metal powder absorption tube is used for absorbing the metal powder on the surface of the mixture accommodated in the current area.
According to the technical scheme, the operation method of the system comprises the following steps:
s0, establishing a mixture type identification database, inputting images of various mixtures, starting a mixture shooting unit to shoot whether the mixture is contained in the current position in the forming pond or not, and identifying the types of the mixtures;
s1, after a new mixture is put into a certain forming pond, an adhesive supply end is arranged on the forming pond, the forming pond is divided into a plurality of mixing areas, the metal powder on the surface of the mixture in the current mixing area is absorbed by a metal powder absorption pipe, the surface metal powder of each mixture is monitored by a particle size detection module to calculate particle size degree information, the metal powder in which mixing area is detected is determined by adjusting the connection mode of a detection switching module, and the average particle size of the metal powder of the mixture is calculated
Recording;
s2, after the mixture is taken out and checked by a worker, calculating the duration time of the mixture taken out of the forming pond through a timing unit, recording the time of the mixture taken out until the mixture is put back into the forming pond again, recording the time of putting into the forming pond at the moment, and stopping timing if the worker does not put into the forming pond, starting charging control;
s3, calculating a volatilization loss value B of the mixture according to the accumulation of the time when the mixture is taken out of the forming tank, and supplementing the binder of the mixture
Adjusting, weighing and adding according to the binder supplement amount when the staff performs feeding control;
and S4, connecting the adhesive supply end, feeding the mixture, and connecting the data adhesives to a mixing device, so that the detected metal powder and the adhesives are mixed and then are added into a forming pool together, and the opening and closing conditions of a flow control valve are determined to adjust which amount of adhesives are fed into which mixing area of the mixture.
According to the above technical solution, the specific working process of the mixture shooting unit in the step S1 includes the following steps:
s1-1, after the mixture is placed, when the mixture enters a one-time charging completion state, a mixture shooting unit monitors image information of each mixture, and uploads the image data to a mixture identification module to qualify the types of the mixture;
s1-2, controlling the operation of different detection switching modules to detect the initial average particle size of the surface metal powder of each mixture through infrared image, and marking as
Wherein the average particle size +.>
The value decreases with increasing storage time;
s1-3, calculating the current average particle size of the surface metal powder of each mixture at fixed intervals, and marking as
The respective metal powder particle size change value +.>
。
According to the above technical scheme, in the step S1-2, the metal powder detection switching method of the detection switching module specifically includes: the detection switching module is divided into different electromagnetic valves
The electromagnetic valve is arranged at the end head of the metal powder absorption tube connected to the mixing area of the mixture, when the surface metal powder of a certain mixture needs to be detected, other electromagnetic valves are started, a vacuum pump at the other end of the metal powder absorption tube is started, the metal powder absorption tube of the mixture to be measured is communicated with the granularity detection module, and the reading of the granularity detection module is the average particle size of the metal powder on the surface of the mixture to be measured.
According to the technical scheme, the specific working process in the step S3 comprises the following steps:
b3-1, when the mixture starts to be taken out and checked, detecting whether the mixture is in the visual field by using the mixture shooting unit, judging which mixture is taken out and which mixture is not taken out, and recording the total time of the mixture storage by using the timing unit
As long as the mixture is stored in the forming tank and is not taken out for viewing, the total time is counted>
；
B3-2, the timing module records the time of taking out the mixture by each staff to check the quality of the mixture, namely, each mixing areaTime for the mixture to actually take out of the forming pond when the mixture is in a volatile state
，
；
And B3-3, a volatilization estimation module estimates a volatilization loss value B of the mixture to the binder according to the time of taking the mixture out of the forming pool in each mixing area, wherein the volatilization loss value B is specifically as follows:
；
wherein the method comprises the steps of
For the binder volatilization rate coefficient of the mixture during storage of the molding cell, < >>
For the binder volatilization speed coefficient of the mixture when the molding pool is taken out for inspection>
And->
All obtained according to experiments.
According to the technical scheme, the supplementary amount of the mixture binder in the step S3
The specific defining method comprises the following steps: as the average particle size of the metal powder becomes smaller and the degree of loss of the mixture when the mixture is volatilized out of the forming tank becomes larger, the binder supplement amount of the mixture is increased in proportion, namely +.>
；
Wherein the method comprises the steps of
As a mixture ofInitial binder make-up, i.e. the initial binder make-up of the mix initially placed in the forming vat, the initial binder make-up of the mix in each mixing zone being determined by the composition proportioning requirements of such mix>
Adjusting the coefficient for the amount of binder, < >>
According to the actual application situation.
According to the above technical solution, in the step S4, the working method of the flow control valve specifically includes:
and B4-1, sorting according to the calculated binder supplement amount of the mixture when starting feeding, wherein the more the mixture with high binder supplement amount is needed, the more binder is fed for the second time.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the size of the subsequently added binder can be adjusted by detecting the sizes of the metal powder in different mixing areas in the forming pond, meanwhile, the taking-out time of the mixture which is taken out and observed can be calculated to estimate the damage degree of the binder, so that the amount of the subsequently added binder is adjusted, the use amount is more accurate, and the mixing effect is good.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall modular structure of the present invention;
fig. 2 is a schematic diagram of the overall physical structure of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but 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.
Referring to fig. 1 and 2, the present invention provides the following technical solutions: the automatic feeding control method and system in the metallurgical feeding process comprises a dosage control module, a taking-out loss judging module and a metal powder judging module, wherein the dosage control module is used for controlling the dosage of the binder in each mixing area, the metal powder judging module is used for judging the binding degree of the mixture according to the granularity and giving different binder feeding instructions, and the taking-out loss judging module is used for estimating the volatilization condition of the binder according to the taking-out time of the mixture;
the consumption control module comprises a flow control valve, a mixing device and an adhesive supply end, the taking-out loss judging module comprises a mixture shooting unit, a mixture identifying module, a volatilization estimating module and a timing unit, the metal powder judging module comprises a granularity detecting module, a detecting switching module and a metal powder absorbing pipe, the flow control valve is connected with the adhesive supply end, the detecting switching module is arranged in the metal powder absorbing pipe, the timing unit is electrically connected with the volatilization estimating module, and the granularity detecting module is electrically connected with the detecting switching module;
the adhesive supply end is used for bonding the adhesive sprayed by the mixture, the flow control valve is used for adjusting the flow of the adhesive sprayed onto the mixture, and the mixing device is used for mixing the detected metal powder with the newly added adhesive and then putting the mixture into the forming tank again;
the mixture shooting unit is used for shooting mixture images of all mixing areas, the mixture identification module is used for judging the types of metal powder according to the detected mixture images, the volatilization estimation module is used for estimating the volatilization condition of the adhesive according to the observed time of each mixture taken out of the forming pond, and the timing unit is used for calculating the duration of the mixture taken out of the forming pond;
the particle size detection module is used for detecting the particle size of the non-agglomerated materials on the surface of the mixture to judge the bonding degree of the mixture, the detection switching module is used for switching the types of the mixture to be detected, and the metal powder absorption tube is used for absorbing the metal powder on the surface of the mixture accommodated in the current area;
the operation method of the system comprises the following steps:
s0, establishing a mixture type identification database, inputting images of various mixtures, starting a mixture shooting unit to shoot whether the mixture is contained in the current position in the forming pond or not, and identifying the types of the mixtures;
s1, after a new mixture is put into a certain forming pond, an adhesive supply end is arranged on the forming pond, the forming pond is divided into a plurality of mixing areas, the metal powder on the surface of the mixture in the current mixing area is absorbed by a metal powder absorption pipe, the surface metal powder of each mixture is monitored by a particle size detection module to calculate particle size degree information, the metal powder in which mixing area is detected is determined by adjusting the connection mode of a detection switching module, and the average particle size of the metal powder of the mixture is calculated
Recording;
s2, after the mixture is taken out and checked by a worker, calculating the duration time of the mixture taken out of the forming pond through a timing unit, recording the time of the mixture taken out until the mixture is put back into the forming pond again, recording the time of putting into the forming pond at the moment, and stopping timing if the worker does not put into the forming pond, starting charging control;
s3, calculating a volatilization loss value B of the mixture according to the accumulation of the time when the mixture is taken out of the forming tank, and supplementing the binder of the mixture
Adjusting, weighing and adding according to the binder supplement amount when the staff performs feeding control;
s4, the adhesive supply end is connected, the mixture is fed, the data adhesives are fed to the mixing device, the detected metal powder and the adhesives are mixed and then are fed into the forming pool together, and the opening and closing conditions of the flow control valve are determined to adjust the amount of the adhesives fed into the mixture in the mixing area;
the specific working process of the mixture shooting unit in the step S1 includes the following steps:
s1-1, after the mixture is placed, when the mixture enters a one-time charging completion state, a mixture shooting unit monitors image information of each mixture, and uploads the image data to a mixture identification module to qualify the types of the mixture;
s1-2, controlling the operation of different detection switching modules to detect the initial average particle size of the surface metal powder of each mixture through infrared image, and marking as
Wherein the average particle size +.>
The value decreases with increasing storage time;
s1-3, calculating the current average particle size of the surface metal powder of each mixture at fixed intervals, and marking as
The respective metal powder particle size change value +.>
；
In the step S1-2, the metal powder detection switching method of the detection switching module specifically comprises the following steps: the detection switching module is divided into different electromagnetic valves
The electromagnetic valve is arranged at the end head of the metal powder absorption tube connected to the mixture mixing area, when the surface metal powder of a certain mixture needs to be detected, other electromagnetic valves are opened, and the vacuum pump at the other end of the metal powder absorption tube is started to be measuredThe metal powder absorption tube of the mixture is communicated with the granularity detection module, and the reading of the granularity detection module is the average granularity of the metal powder on the surface of the mixture to be measured;
the specific working process in the step S3 includes the following steps:
b3-1, when the mixture starts to be taken out and checked, detecting whether the mixture is in the visual field by using the mixture shooting unit, judging which mixture is taken out and which mixture is not taken out, and recording the total time of the mixture storage by using the timing unit
As long as the mixture is stored in the forming tank and is not taken out for viewing, the total time is counted>
；
B3-2, a timing module records the time of taking out the mixture by each staff to check the quality of the mixture, namely the time of actually taking out the mixture in each mixing area from a forming pool when the mixture is in a volatile state
，
；
B3-3, the volatilization estimating module estimates the volatilization loss value of the mixture to the binder according to the time of the mixture in each mixing area in the mixture taking out of the forming pool
The method specifically comprises the following steps:
wherein the method comprises the steps of
For the binder volatilization rate coefficient of the mixture during storage of the molding cell, < >>
The volatilization speed coefficient of the binder of the mixture is the same as that of the mixture when the forming pond is taken out for inspection; />
And->
All are obtained according to experiments;
supplement amount of the mixture binder in the step S3
The specific defining method comprises the following steps: as the average particle size of the metal powder becomes smaller and the degree of loss of the mixture when the mixture is volatilized out of the forming pond becomes greater, the binder supplement amount of the mixture is proportionally increased, namely:
wherein the method comprises the steps of
For the initial binder supplement of the mixture, i.e. the initial binder supplement of the mixture initially introduced into the forming pond, the initial binder supplement of the mixture in each mixing zone is determined according to the component proportioning requirements of the mixture>
The adhesive dosage adjustment coefficient is determined according to actual application conditions;
in the step S4, the working method of the flow control valve specifically includes:
and B4-1, sorting according to the calculated binder supplement amount of the mixture when starting feeding, wherein the more the mixture with high binder supplement amount is needed, the more binder is fed for the second time.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Automatic material feeding control system in metallurgical feeding process, its characterized in that: the device comprises a dosage control module, a taking-out loss judging module and a metal powder judging module, wherein the dosage control module is used for controlling the dosage of the binder in each mixing area, the metal powder judging module is used for judging the binding degree of the mixture through granularity and giving different binder feeding instructions, and the taking-out loss judging module is used for estimating the volatilization condition of the binder according to the taking-out time of the mixture.
2. The automatic feed control system in a metallurgical feed process of claim 1, wherein: the consumption control module comprises a flow control valve, a mixing device and a binder supply end, the taking-out loss judging module comprises a mixture shooting unit, a mixture identification module, a volatilization estimation module and a timing unit, the metal powder judging module comprises a granularity detection module, a detection switching module and a metal powder absorption pipe, the flow control valve is connected with the binder supply end, the detection switching module is arranged in the metal powder absorption pipe, the timing unit is electrically connected with the volatilization estimation module, and the granularity detection module is electrically connected with the detection switching module;
the adhesive supply end is used for bonding the adhesive sprayed out of the mixture, the flow control valve is used for adjusting the flow of the adhesive sprayed out of the mixture, and the mixing device is used for mixing the detected metal powder with the newly added adhesive and then putting the mixture into the forming tank again;
the mixed material shooting unit is used for shooting mixed material images of all mixed areas, the mixed material identification module is used for judging the types of metal powder according to the detected mixed material images, the volatilization estimation module is used for estimating the volatilization condition of the adhesive according to the observed time of each mixed material taken out of the forming pond, and the timing unit is used for calculating the duration time of the mixed material taken out of the forming pond;
the particle size detection module is used for detecting the particle size of non-caking materials on the surface of the mixture to judge the bonding degree of the mixture, the detection switching module is used for switching the types of the mixture to be detected, and the metal powder absorption tube is used for absorbing the metal powder on the surface of the mixture accommodated in the current area.
3. The automatic feed control system in a metallurgical feed process of claim 2, wherein: the operation method of the system comprises the following steps:
s0, establishing a mixture type identification database, inputting images of various mixtures, starting a mixture shooting unit to shoot whether the mixture is contained in the current position in the forming pond or not, and identifying the types of the mixtures;
s1, after a new mixture is put into a certain forming pond, an adhesive supply end is arranged on the forming pond, the forming pond is divided into a plurality of mixing areas, the metal powder absorbing pipe is utilized to absorb the metal powder on the surface of the mixture in the current mixing area, and the mixture passes throughThe particle size detection module monitors the surface metal powder of each mixture to calculate particle size degree information, and determines which metal powder of a mixing region is detected by adjusting the connection mode of the detection switching module, and the average particle size of the metal powder of the mixture
Recording;
s2, after the mixture is taken out and checked by a worker, calculating the duration time of the mixture taken out of the forming pond through a timing unit, recording the time of the mixture taken out until the mixture is put back into the forming pond again, recording the time of putting into the forming pond at the moment, and stopping timing if the worker does not put into the forming pond, starting charging control;
s3, calculating a volatilization loss value B of the mixture according to the accumulation of the time when the mixture is taken out of the forming tank, and supplementing the binder of the mixture
Adjusting, weighing and adding according to the binder supplement amount when the staff performs feeding control;
and S4, connecting the adhesive supply end, feeding the mixture, and connecting the data adhesives to a mixing device, so that the detected metal powder and the adhesives are mixed and then are added into a forming pool together, and the opening and closing conditions of a flow control valve are determined to adjust which amount of adhesives are fed into which mixing area of the mixture.
4. A metallurgical feeding process automatic feed control system according to claim 3, wherein: the specific working process of the mixture shooting unit in the step S1 includes the following steps:
s1-1, after the mixture is placed, when the mixture enters a one-time charging completion state, a mixture shooting unit monitors image information of each mixture, and uploads the image data to a mixture identification module to qualify the types of the mixture;
s1-2, controlling the operation of different detection switching modules to detect the initial average particle size of the surface metal powder of each mixture through infrared image, and marking as
Wherein the average particle size +.>
The value decreases with increasing storage time;
s1-3, calculating the current average particle size of the surface metal powder of each mixture at fixed intervals, and marking as
The respective metal powder particle size change value +.>
。
5. The automatic feed control system in a metallurgical feed process of claim 4, wherein: in the step S1-2, the metal powder detection switching method of the detection switching module specifically comprises the following steps: the detection switching module is divided into different electromagnetic valves
The electromagnetic valve is arranged at the end head of the metal powder absorption tube connected to the mixing area of the mixture, when the surface metal powder of a certain mixture needs to be detected, other electromagnetic valves are started, a vacuum pump at the other end of the metal powder absorption tube is started, the metal powder absorption tube of the mixture to be measured is communicated with the granularity detection module, and the reading of the granularity detection module is the average particle size of the metal powder on the surface of the mixture to be measured.
6. The automatic feed control system in a metallurgical feed process of claim 5, wherein: the specific working process in the step S3 includes the following steps:
b3-1, when the mixture starts to be taken out and checked, detecting whether the mixture is in the visual field by using the mixture shooting unit, judging which mixture is taken out and which mixture is not taken out, and recording the total time of the mixture storage by using the timing unit
As long as the mixture is stored in the forming tank and is not taken out for viewing, the total time is counted>
；
B3-2, a timing module records the time of taking out the mixture by each staff to check the quality of the mixture, namely the time of actually taking out the mixture in each mixing area from a forming pool when the mixture is in a volatile state
，
；
B3-3, the volatilization estimating module estimates the volatilization loss value of the mixture to the binder according to the time of the mixture in each mixing area in the mixture taking out of the forming pool
The method specifically comprises the following steps:
wherein the method comprises the steps of
For the binder volatilization rate coefficient of the mixture during storage of the molding cell, < >>
When the forming pool is taken out to be checkedBinder volatilization rate coefficient of mixture +.>
And->
All obtained according to experiments.
7. The automatic feed control system in a metallurgical feed process of claim 6, wherein: supplement amount of the mixture binder in the step S3
The specific defining method comprises the following steps: as the average particle size of the metal powder becomes smaller and the degree of loss of the mixture when the mixture is volatilized out of the forming pond becomes larger, the binder supplement amount of the mixture is increased proportionally, namely
Wherein the method comprises the steps of
For the initial binder supplement of the mixture, i.e. the initial binder supplement of the mixture initially introduced into the forming pond, the initial binder supplement of the mixture in each mixing zone is determined according to the component proportioning requirements of the mixture>
The adjustment coefficient for the adhesive dosage is determined according to the actual application condition. />
8. The automatic feed control system in a metallurgical feed process of claim 7, wherein: in the step S4, the working method of the flow control valve specifically includes:
and B4-1, sequencing according to the calculated binder supplement amount of the mixture when starting feeding.
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| 金光荣等: "烧结混合料配加GD―1型粘结剂的实践与效果", 河北冶金, no. 03, pages 19 - 21 * |
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|---|---|
| CN116000290B (en) | 2023-06-09 |
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