CN114324447A - Digital full-automatic refractoriness tester and testing method thereof - Google Patents
Digital full-automatic refractoriness tester and testing method thereof Download PDFInfo
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Abstract
The invention discloses a digital full-automatic refractoriness tester and a test method thereof. The digital full-automatic refractoriness tester comprises a test furnace, a window, a thermocouple, a frustum, a camera, a controller and a computer; the digital full-automatic refractoriness tester is also provided with an automatic discrimination system, an automatic imaging and analyzing system, an automatic threshold judgment result and an automatic shutdown system; the automatic discrimination system consists of a rotary positioner, a controller, a computer and the like; the automatic imaging and analyzing system is positioned outside the front window and comprises a visual controller and a gigabit network card which are arranged between the camera and the computer; the automatic threshold value judging result and the automatic stopping system monitor the distance between the cone tip and the upper surface of the cone table in real time according to the test cone, particularly the digital information of the cone tip and the cone table, and set a certain threshold value. The invention changes the traditional testing method from the basic idea of the refractoriness testing technology, abandons the testing method of manual observation, and realizes the full automation of the refractoriness testing process.
Description
Technical Field
The invention belongs to the testing instrument class, relates to the refractory material refractoriness testing technology, and particularly relates to a digital full-automatic refractoriness tester and a testing method thereof.
Background
The refractoriness is the property of a refractory material to resist high temperature without being melted or softened under no load, and is a criterion for judging whether a material can be used as a refractory material.
The method for measuring the refractoriness is a standard method in each country except for the international standard (ISO 528: 1983 refractory standard cone equivalent value (refractoriness) measurement), but a comparative measurement method is generally adopted by comparing with a standard temperature measuring cone. The Chinese standard GB/T7322-2017 method for testing the refractoriness of the refractory material is modified by adopting a comparative measurement method in the international standard (ISO 528) and simultaneously proposes a direct measurement method. The standard testing principle is that a test cone of a refractory material and a standard temperature measuring cone with a known fire resistance value (different standard temperature measuring cones have different cone numbers, such as 158WZ, 160WZ and 162WZ … 180 WZ), the standard temperature measuring cone with an adjacent cone number is arranged according to the estimated fire resistance value of the test cone, the test cone and two or three standard temperature measuring cones are planted on a cone table together, the test cone and the standard temperature measuring cone are heated under a specified temperature rising system, the bending states of the test cone and the standard cone are compared, and the fire resistance value of the test cone is represented by the cone number WN of the standard temperature measuring cone; or directly measuring the temperature of the test cone when the test cone bends over by a thermocouple to express the fire resistance value of the test cone.
The cone frustum is a rectangular parallelepiped or disc made of refractory material according to the regulations of GB/T7322-2017, the shape of which depends on the shape of the test furnace. The upper surface and the lower surface of the frustum are flat and parallel to each other, and are provided with cone-shaped starting position marks.
The cone table with the test cone and the standard temperature measuring cone is placed into a furnace temperature equalizing zone according to the specification of the comparative measurement method in GB/T7322-2017. When any test cone bends and falls until the cone tip contacts the cone table, the bending degree of the standard temperature measuring cone is immediately observed. If the test cone is not observed to bend and fall within the range of the expected standard cone in the test process, the bending and falling temperature of the test cone can be measured by using an optical pyrometer or a thermocouple pyrometer when the test cone bends and falls quickly, so as to determine the standard temperature measuring cone used in the next test of the test cone.
The direct measurement method provides that the cone table with the test cone is placed in a furnace temperature equalizing zone. In order to facilitate the observation of electronic imaging, the number of planting cones can be properly reduced, and the rectangular frustum can be adjusted to be a single row of planting cones. When any test cone bends and falls to the point contacting the cone table, the bending degree is immediately observed, an image is recorded through a camera system, and the temperature tested by the temperature thermocouple is recorded at the same time.
The prior patent technology is based on a GB/T7322 comparison method or a direct reading method. Patent documents 1 to 2 adopt a rectangular frustum, the frustum is stationary in the experimental process, samples are arranged in a line between a heating body and a camera, and the test results are manually judged by shooting or manually taking pictures. Patent documents 3 to 5 adopt a circular frustum, the frustum rotates in the experimental process, samples are uniformly distributed on the circular frustum according to a certain angle, and the frustum is positioned at the center of a heating body. The frustum planted with the sample awl is placed on the rotatory support rod, along with the support rod is rotatory in the furnace, and the sample thermally equivalent. The initial position of the cone sample on the cone platform is marked by using a triangular groove, a scribing line or a bulge, if the marker falls off in the experiment and the groove, the scribing line or the bulge interferes with RGB of the cone platform at high temperature, human eyes lose the identification of the sample or are fuzzy, and the test is declared to fail, sample preparation, cone planting and test are required again; and the test result is judged manually by shooting or manually taking pictures.
Patent document 1: chinese patent publication CN 101393097a horizontal imaging refractoriness automatic tester;
patent document 2: chinese patent publication CN 204008512U an automatic tester for refractoriness;
patent document 3: chinese patent publication CN203870045U discloses a multi-cone refractoriness tester;
patent document 4: chinese patent publication CN 102262114 a direct-reading refractoriness test method;
patent document 5: chinese patent publication CN203811559U full-automatic imaging refractoriness testing equipment.
It can be seen that, in the existing refractoriness test standard and the existing patent technology, identification positions are arranged on the frustum, and for the disc-shaped frustum, in the rotating image, a sample cone, a standard temperature measuring cone and the like need to be identified manually according to the identification. If the mark falls off or the image is interfered in the test process, the test vertebral body can not be identified continuously. Secondly, in the existing international and domestic test method, when the temperature measuring cone or the standard temperature measuring cone bends and falls to the cone tip to contact the cone table, the bending degree is observed manually and the corresponding temperature is recorded, and an operator needs to stare at a camera screen for a long time, so that the fatigue is easy. According to related reports, the pause time of human vision needs 0.17s on average, only 3% of vision can clearly see the target in the process of quickly transferring the sight, and if the time from the non-contact frustum to the contact frustum of the test cone is less than 0.17s, the accuracy of the result is directly influenced by manual observation. The existing international and domestic test methods use a cone tip to contact a cone table to judge what is contact and what degree the cone tip touches, and the manual identification has great personality, and factors such as image interference and the like, and the manually described experiment results have differences.
The whole test process needs manual watching, correlation of the sample cone, the standard cone and the temperature is identified manually through images, a test report needs manual filling and editing, and automatic result judgment, report output and automatic shutdown cannot be realized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an unattended digital full-automatic refractoriness tester and a test method thereof in the whole processes of automatic discrimination, automatic imaging and analysis, automatic threshold judgment, automatic database establishment, automatic report printing, automatic shutdown and the like.
The technical scheme adopted by the invention is as follows to achieve the aim
A digitalized full-automatic refractoriness tester comprises a test furnace, a window, a thermocouple, a frustum, a camera, a controller and a computer; the digital full-automatic refractoriness tester is also provided with an automatic discrimination system, an automatic imaging and analyzing system, an automatic threshold judgment result and an automatic shutdown system;
the automatic discrimination system consists of a rotary positioner, a controller, a computer and the like; a rotary driver, a rotary counter and an automatic positioning mechanism in the rotary positioner are connected with a controller, and the controller is connected with a computer; the automatic positioning mechanism consists of a cone numbering device, a start bit identifier and a digital encoder;
the automatic imaging and analyzing system is positioned outside the front window and comprises a visual controller and a gigabit network card which are arranged between the camera and the computer; the camera collects the graphic information of the test cone and the frustum in real time and transmits the original graphic to the vision controller through a transmission line; the vision controller carries out digital model reconstruction on the collected original image, and transmits the original image and the digital model to a computer information base corresponding to the test cone by combining with the machine coding of the cone; the computer establishes an edge function set for the digitized graph; cross point sets with different attributes are obtained by transversely scanning the edge function sets, and the cross point sets are characteristic information sets of the test cone and the frustum;
the automatic threshold value judging result and the automatic stopping system monitor the distance between the cone tip and the upper surface of the cone base in real time according to the test cone, particularly the digital information of the cone tip and the cone base, set a certain threshold value, and when the cone tip touches the threshold value with the upper surface of the cone base for the first time, the computer system judges that: the cone tip contacts the cone table, and the furnace temperature value at the moment is the refractory value of the test cone; the computer is connected with the controller system, the automatic positioning mechanism and the vision controller, measurement and control software is installed in the computer, the measurement and control software controls the system to automatically run, a result is automatically output, the computer sends an ending instruction to the controller, the current and the voltage of the controller gradually return to zero, a power supply is cut off, a red light is on, and the machine is automatically stopped.
Cone numbering device is multipoint photoelectric sensor or disc type multipoint electronic position meter
The method for testing by utilizing the digital full-automatic refractoriness tester is characterized by comprising the following steps of: the method mainly comprises the following steps:
s1, initializing a program;
s2, setting test numbers, actual test cone numbers and original heights L of the test conesNO1，L160WZ，LNO2Waiting, bending the test cone to a distance threshold (-h to + h mm) of the cone tip contacting the cone table, and testing temperature basic parameters;
s3, setting a temperature rise system, heating the furnace to 200 ℃ lower than the refractoriness of the estimated sample within 1.5-2 h according to the standard, and then heating to the test temperature at the uniform speed of 2.5 ℃/min;
s4, starting the test, automatically searching for the start bit according to the start bit identifier, and performing S5 on the found start bit without finding the start bit S4;
s5, according to the start position and the cone numbering device, the digital encoder carries out machine coding on the test cone, the codes are uploaded to a test program, and the program automatically establishes a machine coding and actual coding comparison table;
s6, establishing respective information base for the test cones by the program, wherein the information base is identified by the actual codes of the test cones;
s7, receiving the digital encoder signal in real time by the program, and acquiring an original image by the camera when the encoder signal is at the position of the test cone; and transmitting the original graph to a vision controller;
and S8, providing an accurate image processing algorithm by the vision controller, carrying out digital model reconstruction on the acquired original image, and establishing an edge function set for the digitized image. Obtaining cross point sets with different attributes through transverse scanning edge function sets, wherein the cross point sets are characteristic information sets of the test cone and the frustum;
s9, the vision controller transmits the original graph and the characteristic information set to the computer, the program refers to the machine code and the actual code comparison table, and the information is stored in the respective information base of the test cone, and the following processes take the information base NO1 of the test cone NO1 as an example;
s10, carrying out classification algorithm analysis on the feature information point set by the program, and dividing the feature information set into a frustum surface information set, a cone root, middle and tip information set and a cone turning speed information set at different positions;
s11, calculating the distance between the tip of the cone and the upper surface of the frustum according to the information set of the tip of the cone and the information set of the upper surface of the frustum, wherein the distance at this time is the pixel distance PHNO1’；
S12, taking the pixel distance PH NO1 between the tip of the cone and the upper surface of the frustum obtained for the first time as the original pixel height;
s13, calculating the distance L between the tip of the cone and the upper surface of the frustumNO1’=LNO1*（PHNO1’/PHNO1）；
S14, storing the distance L between the tip of the test cone NO1 and the upper surface of the frustumNO1', temperature T of temperature thermocouple, cone number NO1 to test cone NO1 process database;
s15, if LNO1Within the range of-h to + h mm, the temperature T of the temperature thermocouple is the refractoriness of a test cone NO1, and the temperature T of the temperature thermocouple is stored in a test cone NO1 result database;
s16, carrying out S7-S15 operation on all test cones, if the refractoriness of all the test cones is calculated, automatically stopping the test, and storing all the test results;
test method of refractoriness of refractory material: the test cone is subjected to the following test steps, wherein the cone table rotates slowly in the test process.
The first step is as follows: putting the cone platform with the test cone into a test furnace;
the second step is that: setting a test number, an actual number of the test cone or the standard cone, and the original height of each test cone such as LNO1，L160WZ，LNO2When the test cone is bent and falls to the distance threshold (-h to + h mm) of the cone tip contacting the frustum, h is more than or equal to 0.03mm, and the test temperature is basedThe parameter is in calculation;
the third step: setting a temperature-raising system, heating the furnace to 200 ℃ lower than the estimated refractoriness of the sample within 1.5-2 h according to the standard, and then heating to the test temperature at the uniform speed of 2.5 ℃/min. Taking 1800 ℃ as an example, the temperature rise rate is 20 ℃/min below 1000 ℃, the temperature rise rate is 10 ℃/min between 1000 ℃ and 1600 ℃, and the temperature rise rate is 2.5 ℃/min between 1600 ℃ and 1800 ℃;
the fourth step: and starting the test, and automatically searching for the start bit according to the start bit identifier. The frustum needs to rotate for more than 1 circle;
the fifth step: the computer program automatically numbers the test cone or the standard cone, automatically calculates the characteristic information of the cone and the frustum, automatically analyzes the characteristic information, and searches the distance L between the cone tip of the test cone or the standard cone and the upper surface of the frustum in real time according to the test flown’；
And a sixth step: program judging if LnWithin the range of-h to + h, the temperature T of the temperature thermocouple is the refractoriness of the test cone or the standard cone, and the temperatures T and L of the temperature thermocouple are measuredn' saving to a corresponding test cone or standard cone result database;
the seventh step: and if the refractoriness of all the test cones or the standard cones is calculated, the test is automatically stopped, and all the test results are stored.
The invention changes the traditional testing method from the basic idea of the refractoriness testing technology, abandons the testing method of manual observation, and realizes the full automation of the refractoriness testing process. Its advantage is: an automatic discrimination system is introduced, which consists of a rotary positioner, an automatic positioning mechanism, a controller, a computer and the like; in particular, the automatic positioning mechanism can digitally code a plurality of test cones. The computer automatically encodes the plurality of test cones by combining the digital code with the computer code. The automatic coding not only solves the defect of manual coding, but also can establish an information base corresponding to the cone number. And the automatic imaging and analyzing system comprises a camera, a vision controller, a gigabit network card and the like. The camera collects the graphic information of the test cone and the frustum in real time and transmits the original graphic to the vision controller through the transmission line. The vision controller carries out digital model reconstruction on the acquired original image, and the computer establishes an edge function set for the digitized graph. By scanning the edge function set, a characteristic information base of the test cone and the frustum can be obtained, and the computer calculates the distance between the cone tip of the test cone and the upper surface of the frustum in real time according to the information base. The digital recording of the bending degree of the test cone at any temperature point can be realized. And thirdly, in the test process, only the frustum with the test cone is placed into the test furnace, the computer is connected with the controller system, the automatic positioning mechanism and the vision controller, test software is installed in the computer, the measurement and control software controls the system to automatically operate, automatically output results and automatically stop.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of an automatic positioning mechanism according to the present invention.
Fig. 3 is a top view of fig. 2.
FIG. 4 is a flow chart of the test software of the present invention.
In the figure: 1. the device comprises a rotating motor, 2, a lifting motor, 3, a cone numbering device, 4, an automatic positioning mechanism, 5, a digital encoder, 6, a corundum support column, 7, a background circular hole, 8, a frustum, 9, a test cone, 10, a refractory furnace lining, 11, a heating body, 12, a temperature measuring thermocouple, 13, a test furnace, 14, a front view window circular hole, 15, a camera, 16, a controller, 17, a visual controller, 18, a computer host, 19, a display, 20 and a starting position mark.
Detailed description of the preferred embodiments
The invention is described in detail with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 3, a digital full-automatic refractoriness tester and a testing method thereof includes: the digital full-automatic refractoriness tester is provided with a test furnace 13 for heating a test cone 9, a heating body 11 and a temperature thermocouple 12 are arranged in the test furnace 13, a controller 16 is arranged for carrying out automatic closed-loop control on the heating body 11 and the temperature thermocouple 12, and temperature information T is transmitted to a computer 18 in real time.
The frustum 8 is positioned at the center of the heating body 11, and N test cones 9 are placed on the frustum at uniform angles. The corundum prop 6 supporting the cone 8 is positioned on the automatic positioning mechanism 4. The automatic positioning mechanism 4 is connected with the controller 16 and consists of a cone numbering device 3, a start bit identifier 20 and a digital encoder 5. The cones are automatically machine numbered and the machine numbers are transmitted to the computer 18. The cone numbering device 5 may be a multipoint photoelectric sensor or a multipoint electronic position finder such as a disk type position finder.
The automatic imaging and analyzing system is positioned outside the round hole of the front view window and comprises a camera 15, a vision controller 17 and a gigabit network cable. The camera 15 collects the graphic information of the test cone 9 and the frustum 8 in real time, and transmits the original graphic to the vision controller 17 through a video transmission line. The vision controller 17 performs digital model reconstruction on the acquired original image, establishes an edge function set of the image, scans the edge function set, and obtains intersection point sets with different attributes, wherein the intersection point sets are feature information sets of the test cone and the frustum. And transmitting the original graph and the characteristic information set to an information base of the corresponding test cone in combination with the machine coding of the test cone.
The automatic threshold value judging result and automatic stopping system is characterized in that a computer is connected with the controller system 16, the automatic positioning mechanism 4 and the vision controller 17, test software is installed in the computer, and the test software controls the system to automatically run, automatically output a result and automatically stop.
With reference to fig. 4, the test method for testing software mainly includes the following steps:
s1, initializing a program;
s2, setting test number, actual test cone number (such as NO1,160WZ, NO2 and the like), and original height L of each test coneNO1，L160WZ，LNO2And the like, basic parameters such as a distance threshold (-h to + h mm) of the test cone bent to the cone tip to contact the frustum and the test temperature;
s3, setting a temperature rise system, heating the furnace to 200 ℃ lower than the refractoriness of the estimated sample within 1.5-2 h according to the standard, and then heating to the test temperature at the uniform speed of 2.5 ℃/min;
s4, starting the test, automatically searching for the start bit according to the start bit identifier, and performing S5 on the found start bit without finding the start bit S4;
s5, according to the start bit and the cone numbering device, the digital encoder carries out machine coding (such as 1,2,3 …) on the test cone and uploads the coding to a test program, and the program automatically establishes a machine coding and actual coding comparison table (such as 1- > NO1,2- >160WZ,3- > NO2 and the like);
s6, establishing respective information base for the test cones by the program, wherein the information base is marked by the actual codes of the test cones (such as NO1,160WZ and NO 2);
and S7, receiving the digital encoder signals in real time by the program, and acquiring original images by the camera when the encoder signals are at the position of the test cone. And transmitting the original graph to a vision controller;
and S8, providing an accurate image processing algorithm by the vision controller, carrying out digital model reconstruction on the acquired original image, and establishing an edge function set for the digitized image. Obtaining cross point sets with different attributes through transverse scanning edge function sets, wherein the cross point sets are characteristic information sets of the test cone and the frustum;
s9, the vision controller transmits the original graph and the characteristic information set to the computer, the program refers to the machine code and the actual code comparison table, and the information is stored in the respective information base of the test cone, and the following processes take the information base NO1 of the test cone NO1 as an example;
s10, the program carries out classification algorithm analysis on the feature information point set, and the feature information set can be divided into a frustum surface information set, a cone root, middle and tip information set, a cone turning speed information set at different positions and the like;
s11, calculating the distance between the tip of the cone and the upper surface of the frustum according to the information set of the tip of the cone and the information set of the upper surface of the frustum, wherein the distance at this time is the pixel distance PHNO1’；
S12, obtaining the pixel distance PH between the tip of the cone and the upper surface of the frustum for the first timeNO1Is the original pixel height;
s13, calculating the distance L between the tip of the cone and the upper surface of the frustumNO1’=LNO1*（PHNO1’/PHNO1）；
S14, preserving the tip of the test cone NO1 anddistance L between upper surface of frustumNO1', temperature T of temperature thermocouple, cone number NO1 to test cone NO1 process database;
s15, if LNO1Within the range of-h to + h mm, the temperature T of the temperature thermocouple is the refractoriness of a test cone NO1, and the temperature T of the temperature thermocouple is stored in a test cone NO1 result database;
s16, carrying out S7-S15 operation on all test cones, if the refractoriness of all the test cones is calculated, automatically stopping the test, and storing all the test results;
test method of refractoriness of refractory material: in the following test steps of the test cone, the cone table rotates slowly in the test process in priority.
The first step is as follows: putting the cone platform with the test cone into a test furnace;
the second step is that: setting test number, test cone or standard cone actual number (such as NO1,160WZ, NO2, etc.), and original height of each test cone such as LNO1，L160WZ，LNO2And the basic parameters such as the test cone bending distance threshold (-h to + h mm) when the test cone is bent to the cone tip contact with the cone frustum, h is more than or equal to 0.03mm, and the test temperature are calculated;
the third step: setting a temperature-raising system, heating the furnace to 200 ℃ lower than the estimated refractoriness of the sample within 1.5-2 h according to the standard, and then heating to the test temperature at the uniform speed of 2.5 ℃/min. Taking 1800 ℃ as an example, the temperature rise rate is 20 ℃/min below 1000 ℃, the temperature rise rate is 10 ℃/min between 1000 ℃ and 1600 ℃, and the temperature rise rate is 2.5 ℃/min between 1600 ℃ and 1800 ℃;
the fourth step: and starting the test, and automatically searching for the start bit according to the start bit identifier. The frustum needs to rotate for more than 1 circle;
the fifth step: the computer program automatically numbers the test cone or the standard cone, automatically calculates the characteristic information of the cone and the frustum, automatically analyzes the characteristic information, and searches the distance L between the cone tip of the test cone or the standard cone and the upper surface of the frustum in real time according to the test flown’；
And a sixth step: program judging if LnWithin the range of-h to + h, the temperature T of the temperature thermocouple is the refractoriness of the test cone or the standard cone, and the temperature of the temperature thermocouple is measuredDegree T and Ln' saving to a corresponding test cone or standard cone result database;
the seventh step: and if the refractoriness of all the test cones or the standard cones is calculated, the test is automatically stopped, and all the test results are stored.
Claims (4)
1. The utility model provides a full-automatic refractoriness tester of digitization which characterized in that: the digital full-automatic refractoriness tester comprises a test furnace, a window, a thermocouple, a frustum, a camera, a controller and a computer; the digital full-automatic refractoriness tester is also provided with an automatic discrimination system, an automatic imaging and analyzing system, an automatic threshold judgment result and an automatic shutdown system;
the automatic discrimination system consists of a rotary positioner, a controller, a computer and the like; a rotary driver, a rotary counter and an automatic positioning mechanism in the rotary positioner are connected with a controller, and the controller is connected with a computer; the automatic positioning mechanism consists of a cone numbering device, a start bit identifier and a digital encoder;
the automatic imaging and analyzing system is positioned outside the front window and comprises a visual controller and a gigabit network card which are arranged between the camera and the computer; the camera collects the graphic information of the test cone and the frustum in real time and transmits the original graphic to the vision controller through a transmission line; the vision controller carries out digital model reconstruction on the collected original image, and transmits the original image and the digital model to a computer information base corresponding to the test cone by combining with the machine coding of the cone; the computer establishes an edge function set for the digitized graph; cross point sets with different attributes are obtained by transversely scanning the edge function sets, and the cross point sets are characteristic information sets of the test cone and the frustum;
the automatic threshold value judging result and the automatic stopping system monitor the distance between the cone tip and the upper surface of the cone base in real time according to the test cone, particularly the digital information of the cone tip and the cone base, set a certain threshold value, and when the cone tip touches the threshold value with the upper surface of the cone base for the first time, the computer system judges that: the cone tip contacts the cone table, and the furnace temperature value at the moment is the refractory value of the test cone; the computer is connected with the controller system, the automatic positioning mechanism and the vision controller, measurement and control software is installed in the computer, the measurement and control software controls the system to automatically run, a result is automatically output, the computer sends an ending instruction to the controller, the current and the voltage of the controller gradually return to zero, a power supply is cut off, a red light is on, and the machine is automatically stopped.
2. The digital full-automatic refractoriness tester of claim 1, wherein: the cone numbering device is a multipoint photoelectric sensor or a disc-shaped multipoint electronic position meter.
3. The method for testing by the digital full-automatic refractoriness tester as claimed in claim 1, wherein: the method mainly comprises the following steps:
s1, initializing a program;
s2, setting test numbers, actual test cone numbers and original heights L of the test conesNO1，L160WZ，LNO2Waiting, bending the test cone to a distance threshold (-h to + h mm) of the cone tip contacting the cone table, and testing temperature basic parameters;
s3, setting a temperature rise system, heating the furnace to 200 ℃ lower than the refractoriness of the estimated sample within 1.5-2 h according to the standard, and then heating to the test temperature at the uniform speed of 2.5 ℃/min;
s4, starting the test, automatically searching for the start bit according to the start bit identifier, and performing S5 on the found start bit without finding the start bit S4;
s5, according to the start position and the cone numbering device, the digital encoder carries out machine coding on the test cone, the codes are uploaded to a test program, and the program automatically establishes a machine coding and actual coding comparison table;
s6, establishing respective information base for the test cones by the program, wherein the information base is identified by the actual codes of the test cones;
s7, receiving the digital encoder signal in real time by the program, and acquiring an original image by the camera when the encoder signal is at the position of the test cone; and transmitting the original graph to a vision controller;
and S8, providing an accurate image processing algorithm by the vision controller, carrying out digital model reconstruction on the acquired original image, and establishing an edge function set for the digitized image. Obtaining cross point sets with different attributes through transverse scanning edge function sets, wherein the cross point sets are characteristic information sets of the test cone and the frustum;
s9, the vision controller transmits the original graph and the characteristic information set to the computer, the program refers to the machine code and the actual code comparison table, and the information is stored in the respective information base of the test cone, and the following processes take the information base NO1 of the test cone NO1 as an example;
s10, carrying out classification algorithm analysis on the feature information point set by the program, and dividing the feature information set into a frustum surface information set, a cone root, middle and tip information set and a cone turning speed information set at different positions;
s11, calculating the distance between the tip of the cone and the upper surface of the frustum according to the information set of the tip of the cone and the information set of the upper surface of the frustum, wherein the distance at this time is the pixel distance PHNO1’；
S12, taking the pixel distance PH NO1 between the tip of the cone and the upper surface of the frustum obtained for the first time as the original pixel height;
s13, calculating the distance L between the tip of the cone and the upper surface of the frustumNO1’=LNO1*（PHNO1’/PHNO1）；
S14, storing the distance L between the tip of the test cone NO1 and the upper surface of the frustumNO1', temperature T of temperature thermocouple, cone number NO1 to test cone NO1 process database;
s15, if LNO1Within the range of-h to + h mm, the temperature T of the temperature thermocouple is the refractoriness of a test cone NO1, and the temperature T of the temperature thermocouple is stored in a test cone NO1 result database;
and S16, carrying out S7-S15 operation on all test cones, and if the refractoriness of all the test cones is calculated, automatically stopping the test and storing all the test results.
4. The method for testing by the digital full-automatic refractoriness tester as claimed in claim 1, wherein: : in the following test steps of the test cone, the cone table rotates slowly in the test process;
the first step is as follows: putting the cone platform with the test cone into a test furnace;
the second step is that: setting a test number, an actual number of the test cone or the standard cone, and the original height of each test cone such as LNO1，L160WZ，LNO2Waiting, bending the test cone until the distance threshold (-h to + h mm) of the cone tip contacting the cone table is reached, wherein h is more than or equal to 0.03mm, and basic parameters of the test temperature are calculated;
the third step: setting a temperature-raising system, heating the furnace to 200 ℃ lower than the estimated refractoriness of the sample within 1.5-2 h according to the standard, and then heating to the test temperature at the uniform speed of 2.5 ℃/min. Taking 1800 ℃ as an example, the temperature rise rate is 20 ℃/min below 1000 ℃, the temperature rise rate is 10 ℃/min between 1000 ℃ and 1600 ℃, and the temperature rise rate is 2.5 ℃/min between 1600 ℃ and 1800 ℃;
the fourth step: and starting the test, and automatically searching for the start bit according to the start bit identifier. The frustum needs to rotate for more than 1 circle;
the fifth step: the computer program automatically numbers the test cone or the standard cone, automatically calculates the characteristic information of the cone and the frustum, automatically analyzes the characteristic information, and searches the distance L between the cone tip of the test cone or the standard cone and the upper surface of the frustum in real time according to the test flown’；
And a sixth step: program judging if LnWithin the range of-h to + h, the temperature T of the temperature thermocouple is the refractoriness of the test cone or the standard cone, and the temperatures T and L of the temperature thermocouple are measuredn' saving to a corresponding test cone or standard cone result database;
the seventh step: and if the refractoriness of all the test cones or the standard cones is calculated, the test is automatically stopped, and all the test results are stored.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393097A (en) * | 2008-10-16 | 2009-03-25 | 洛阳市谱瑞慷达耐热测试设备有限公司 | Refractoriness auto tester for horizontal imaging |
| KR20090076656A (en) * | 2008-01-09 | 2009-07-13 | 신아에이티(주) | Electric furnace for refractoriness measurement |
| CN201779984U (en) * | 2010-08-11 | 2011-03-30 | 中钢集团洛阳耐火材料研究院有限公司 | Refractoriness test furnace with tubular imaging mechanism |
| CN102262101A (en) * | 2011-04-26 | 2011-11-30 | 中钢集团洛阳耐火材料研究院有限公司 | Direct-read refractoriness test method |
| CN203811558U (en) * | 2014-05-08 | 2014-09-03 | 洛阳特耐实验设备有限公司 | Full-automatic imaging refractoriness test equipment |
| CN204008512U (en) * | 2014-05-08 | 2014-12-10 | 洛阳市谱瑞慷达耐热测试设备有限公司 | A kind of refractoriness auto testing instrument |
| CN204945065U (en) * | 2015-09-25 | 2016-01-06 | 中国科学院上海硅酸盐研究所 | A kind of refractoriness testing tool based on digital picture |
| WO2019147155A1 (en) * | 2018-01-29 | 2019-08-01 | Алексей Александрович СПИРИН | Method for automatically laying a kiln refractory lining and robotized installation for the implementation thereof |
-
2022
- 2022-01-12 CN CN202210029220.1A patent/CN114324447A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090076656A (en) * | 2008-01-09 | 2009-07-13 | 신아에이티(주) | Electric furnace for refractoriness measurement |
| CN101393097A (en) * | 2008-10-16 | 2009-03-25 | 洛阳市谱瑞慷达耐热测试设备有限公司 | Refractoriness auto tester for horizontal imaging |
| CN201779984U (en) * | 2010-08-11 | 2011-03-30 | 中钢集团洛阳耐火材料研究院有限公司 | Refractoriness test furnace with tubular imaging mechanism |
| CN102262101A (en) * | 2011-04-26 | 2011-11-30 | 中钢集团洛阳耐火材料研究院有限公司 | Direct-read refractoriness test method |
| CN203811558U (en) * | 2014-05-08 | 2014-09-03 | 洛阳特耐实验设备有限公司 | Full-automatic imaging refractoriness test equipment |
| CN204008512U (en) * | 2014-05-08 | 2014-12-10 | 洛阳市谱瑞慷达耐热测试设备有限公司 | A kind of refractoriness auto testing instrument |
| CN204945065U (en) * | 2015-09-25 | 2016-01-06 | 中国科学院上海硅酸盐研究所 | A kind of refractoriness testing tool based on digital picture |
| WO2019147155A1 (en) * | 2018-01-29 | 2019-08-01 | Алексей Александрович СПИРИН | Method for automatically laying a kiln refractory lining and robotized installation for the implementation thereof |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局 等: "GB/T7322—2017 耐火材料 耐火度试验方法", 《中华人民共和国国家标准》, pages 1 - 7 * |
| 董殿敏 等: "基于机器视觉的影像式耐火度检测系统", 《计算机测量与控制》, pages 1 - 5 * |
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