CN110094988B - Device and method for online detection of grate falling off of trolley of laser correlation sintering machine - Google Patents
Device and method for online detection of grate falling off of trolley of laser correlation sintering machine Download PDFInfo
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- CN110094988B CN110094988B CN201910512969.XA CN201910512969A CN110094988B CN 110094988 B CN110094988 B CN 110094988B CN 201910512969 A CN201910512969 A CN 201910512969A CN 110094988 B CN110094988 B CN 110094988B
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- 238000005245 sintering Methods 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000010926 purge Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 27
- 230000001939 inductive effect Effects 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 4
- 210000000481 breast Anatomy 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/04—Arrangements of indicators or alarms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D2021/0057—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects
- F27D2021/0092—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects against a jam in the transport line or a production interruption
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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
- F27M2003/04—Sintering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a laser correlation sintering machine trolley grate falling off on-line detection device and a detection method, comprising the following steps: sintering machine frame, track, set up many continuous operation's platform truck and automatic control device on the track, every platform truck mainly comprises wheel, breast board, crossbeam and three rows of horizontal evenly arranged's of setting grate between the crossbeam, its characterized in that: the device also comprises a laser correlation receiving mechanism and a laser correlation transmitting mechanism, wherein the laser correlation receiving mechanism and the laser correlation transmitting mechanism are respectively arranged at the upper part of the sintering machine frame through which the trolley passes by in a lower return stroke, and the laser correlation transmitting mechanism, the positioning component and the positioning detecting unit are respectively arranged at the lower part of the sintering machine frame. The invention can effectively reduce the trouble and economic loss caused by the falling of the grate of the sintering machine trolley, and greatly improve the working efficiency of the sintering production line. Meanwhile, the invention brings direct economic benefit and indirect social benefit to enterprises, so that the invention has wide market prospect. The invention has the advantages of simple structure, stable measurement, high measurement precision and low cost.
Description
Technical Field
The invention belongs to the technical field of work fault detection of a pre-iron sintering machine, and particularly relates to an online detection device and method for grate falling off detection of a trolley of a laser correlation sintering machine.
Background
Along with the development and progress of the iron and steel industry technology, the pre-iron sintering process is very commonly applied in iron and steel enterprises, and meanwhile, the production scale is developed from tens of flat to hundreds of flat, so that the characteristics of maturity, advancement and the like of the sintering process are fully reflected.
In the production process of a sintering plant, the most core equipment is a sintering machine, which completes the whole process of ignition, continuous combustion, until sinter formation of the mixture, which leaves the sintering machine, so that the importance of the sintering machine in the sintering process flow can be seen. However, the sintering machine is really contacted with red material, namely the grate bar, the mixture is burnt on the grate bar to form sintered ore, and meanwhile, high-temperature smoke generated by burning is discharged after passing through the grate bar and passing through a large flue, a main electric dust removing system, a main exhaust fan and a smoke treatment system, so that the grate bar is a key part of the sintering machine and is also a wearing part. Because the small block-shaped bedding materials and the powdery mixture are directly arranged on the grate, the phenomenon of material leakage can be generated if the grate falls off. The phenomenon can reduce the production efficiency of the sintering machine, influence the ventilation balance of the sintering machine, increase the abrasion to a flue, improve the working strength of main electric dust removal, shorten the service life of a main exhaust fan, increase the difficulty of a flue gas treatment system and other adverse factors.
However, through a plurality of field researches and production summaries, the grate is a vulnerable part, so that the grate of the sintering machine falls off to generate the condition of leaking materials in the debugging and production processes, and because of no detection and alarm device, workers can hardly find out in time, and can hardly judge which grate falls off, a large amount of leaking materials can appear as a result, and even the production is stopped and overhauled, thereby restricting the production efficiency and the total yield of the sintering production line, becoming an intermediate restriction condition of the whole production process, and ensuring the efficient, stable and continuous production of the sintering production line, and timely and accurate detection of whether the grate of the sintering machine falls off in the production process is particularly important.
Disclosure of Invention
The invention aims to provide the online detection device and the detection method for the falling of the grate of the laser correlation sintering machine trolley, which can accurately detect the current working state of the grate of the sintering machine running continuously in real time and judge whether the grate needs to be processed, avoid the problems that the manual inspection is not timely found and the grate is difficult to accurately judge which grate falls, save time and labor, and play an important role in ensuring the continuous and stable running of a sintering production line.
The aim of the invention is realized by the following technical scheme:
the invention relates to a laser correlation sintering machine trolley grate falling off on-line detection device, which comprises: the sintering machine frame, the track, a plurality of sections of continuously running sintering machine trolleys and an automatic control device are arranged on the track, each section of sintering machine trolley mainly comprises wheels, baffle plates, cross beams and three rows of grate bars which are arranged among the cross beams and are horizontally and uniformly arranged,
the method is characterized in that: the device also comprises a laser correlation receiving mechanism and a laser correlation transmitting mechanism which are respectively arranged at the upper part of the sintering machine trolley and the lower part of the sintering machine trolley, a positioning component and a positioning detection unit,
the laser correlation type emission mechanism comprises: a bracket I for fixing the transmitting device and the transmitting device,
the bracket I for fixing the launching device consists of a cross rod I, a vertical pipe I and a vertical pipe II, wherein the vertical pipe I and the vertical pipe II are vertically connected with the cross rod I, and the cross rod I is fixedly connected to the lower part of a stand column of the sintering machine frame through bolts and is positioned below a lower return stroke of the trolley;
the transmitting device includes: the device comprises a sealed box body I, a fixed porous plate I, a soft rubber buffer sleeve and a transmitting sensor, wherein the sealed box body I consists of a rectangular groove body I and an end cover I which is in sealing connection with the rectangular groove body I;
the sealing box body I is connected with the vertical pipes I and II 11 and arranged at the lower part of the lower return stroke of the sintering machine trolley, the fixed porous plate I is arranged in the sealing box body I, the sealing box body I is divided into a wire cavity I and a compressed air cavity I, and the soft rubber buffer sleeves are sleeved at the two ends of the sealing box body I; the transmitting sensors are equidistantly arranged on round holes corresponding to the fixed porous plate I, a light-transmitting cover I is arranged on a convex round hole corresponding to each transmitting sensor on the rectangular groove body I, the threading tube I is arranged in a vertical tube I outside the end cover I, one end of a wire I through the threading tube I is connected with each transmitting sensor, and the other end of the wire I is connected with the automatic control device;
the purging mechanism I comprises an air source connecting pipe I and a purging guide pipe I, wherein the air source connecting pipe I penetrates through a vertical pipe II arranged on the outer side of the end cover I, one end of the air source connecting pipe I is connected with an air source, the other end of the air source connecting pipe I is communicated with the vertical pipe II to form a compressed air cavity I, and the purging guide pipe I is obliquely arranged on the upper inner part of the transparent cover I and used for guiding compressed air in the compressed air cavity I to purge the outer surface of the transparent cover I;
the laser correlation receiving mechanism comprises: a bracket II for fixing the receiving device and the receiving device,
the bracket II for fixing the receiving device consists of a cross rod II, a vertical pipe III and a vertical pipe IV which are vertically connected with the cross rod II; the cross rod II is fixedly connected to the upper part of the stand column of the sintering machine frame through a bolt and is positioned above the lower return stroke of the sintering machine trolley;
the receiving device includes: the device comprises a sealed box body II, a fixed porous plate II, a receiving sensor, a threading tube II, a lead II, an air source connecting pipe II, a light-transmitting cover II and a purging mechanism II, wherein the sealed box body II consists of a rectangular groove body II and an end cover II which is in sealing connection with the rectangular groove body II;
the sealing box body II is connected with the vertical pipes III and IV and is arranged at the upper part of the lower return stroke of the sintering machine trolley, the fixed porous plate II is arranged in the sealing box body II, the sealing box body II is divided into a wire cavity II and a compressed air cavity II, receiving sensors are equidistantly arranged on round holes corresponding to the fixed porous plate II, a light-transmitting cover II is arranged on a convex round hole corresponding to each receiving sensor on the rectangular groove body II, a threading tube II is arranged in the vertical pipe III at the outer side of the end cover II, one end of a wire II through the threading tube II is connected with each receiving sensor, and the other end of the wire II is connected with the automatic control device;
the purging mechanism II comprises an air source connecting pipe II and a purging guide pipe II, the air source connecting pipe II penetrates through a vertical pipe IV arranged on the outer side of the end cover II, one end of the air source connecting pipe II is connected with an air source, the other end of the air source connecting pipe II is communicated with the vertical pipe IV to form a compressed air cavity II, and the purging guide pipe II is obliquely arranged on the upper inner part of the light-transmitting cover II and used for guiding compressed air in the compressed air cavity II to purge the outer surface of the light-transmitting cover II;
the positioning assembly comprises a positioning bottom plate arranged on a trolley bearing seat of the sintering machine and three grate positioning blocks which are equidistantly arranged on the positioning bottom plate, and the centers of the three grate positioning blocks respectively correspond to the central lines of the three rows of grate of the trolley of the sintering machine;
the positioning detection unit comprises a fixed upright post, a torsion spring, a fixed pore plate, an inductive proximity switch and a wire, wherein the fixed upright post is fixedly connected to the cross rod II through a bolt, one end of the torsion spring is fixed to the lower end of the fixed upright post, the other end of the torsion spring is connected with the fixed pore plate, the inductive proximity switch is fixed to the fixed pore plate through a screw, and the inductive proximity switch is connected with the automatic control device through the wire.
Further, the grate positioning blocks are transversely arranged corresponding to the centers of the grates in each row of the sintering machine trolley, the longitudinal grate positioning blocks are arranged in a row, and the connecting line of the centers of the grate positioning blocks and the positioning detection unit are in the same vertical plane.
Further, the automatic control device comprises a PLC, a power module, a transmitting module, a receiving module, an alarm module and a display screen.
Further, the emission sensor is a correlation laser switch emission sensor; the receiving sensor is a correlation laser switch receiving sensor.
The invention discloses a detection method of a laser correlation sintering machine trolley grate falling off on-line detection device, which is characterized by comprising the following steps:
1) Sintering machine trolley code
Firstly, a sintering machine trolley, grate rows on the sintering machine trolley and the number of the grate in each row are required to be encoded, wherein X is used for representing the number of the sintering machine trolley, n is used for representing the number of the grate of the X-th trolley, and Y is used for representing the position of each grate in the nth row of grate; then, carrying out corresponding coding on the laser correlation detection group;
2) Detection device installation
The method comprises the steps that a receiving device and a transmitting device of a laser correlation sintering machine trolley grate falling off on-line detection device are respectively arranged at the upper part and the lower part of a sintering machine frame through which a sintering machine trolley passes in a return stroke, and a transmitting sensor of the transmitting device and a receiving sensor of the receiving device form a group of correlation detection mechanisms; the positioning detection unit is also arranged at the upper part of the sintering machine frame through which the sintering machine trolley passes by in a return stroke like the receiving device; arranging a grate positioning block corresponding to each row of grate of each sintering pallet; is electrically connected with the automatic control device;
3) Detection device commissioning
The transmitting sensor and the receiving sensor are debugged to be in one-to-one vertical correspondence and are positioned on the same vertical plane vertical to the trolley track, and the inductive proximity switch of the positioning detection unit is also positioned in the vertical plane, so that detection can be performed;
4) Detection of
When the grate positioning block x+n runs below the positioning detection unit, detection starts, an inductive proximity switch of the positioning detection unit acts, a high-level signal is output, the condition of the (x+n) th grate row is detected, and the detection result of each grate of the (n) th grate row of the (x) th trolley is output, namely Y groups of data; the state of the Y-th grate of the nth row of the X-th trolley is displayed on a display screen picture of the automatic control device, the green color is normal, the red color is falling off, the falling-off grate is numbered and recorded, and an alarm is given, so that the online detection of the grate of the sintering machine trolley is realized.
The invention has the advantages that:
the invention is non-contact detection, has no abrasion and long service life of equipment.
The invention realizes the one-by-one on-line detection of all the grates of the continuously running sintering machine trolley by using the detection switches corresponding to the number of one row of grates.
The invention displays the states of all the grate bars of the sintering machine trolley on the touch screen, is clear at a glance, can accurately display the codes and the positions of the fallen grate bars, can remotely transmit alarm information to a central control room for alarm prompt, and simultaneously provides relevant reliable information for operators to take measures.
Drawings
FIG. 1 is a schematic diagram of the arrangement position of the grate drop on-line detection device of the laser correlation sintering machine trolley.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a cross-sectional view A-A of fig. 2.
Fig. 4 is an enlarged view of the section I of fig. 2.
Fig. 5 is an enlarged view of a portion B of fig. 2.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 5, the invention relates to an on-line detection device for grate falling off of a trolley of a laser correlation sintering machine, which comprises: the sintering machine frame 8, the track, a plurality of continuously running sintering machine trolleys 1 arranged on the track and the automatic control device 6, each sintering machine trolley 1 mainly comprises wheels, baffle plates, cross beams and three rows of grate bars 7 which are arranged among the cross beams and are horizontally and uniformly arranged,
the method is characterized in that: the device also comprises a laser correlation receiving mechanism 3 which is respectively arranged at the upper part of a sintering machine frame 8 through which the sintering machine trolley 1 passes by in a lower return stroke, a laser correlation transmitting mechanism 2 which is arranged at the lower part of the sintering machine frame 8, a positioning component 4 and a positioning detection unit 5,
the laser correlation emission mechanism 2 comprises: a bracket I for fixing the transmitting device and the transmitting device,
the bracket I for fixing the launching device consists of a cross rod I9, a vertical pipe I10 and a vertical pipe II 11, wherein the vertical pipe I10 and the vertical pipe II 11 are vertically connected with the cross rod I9, and the cross rod I9 is fixedly connected to the stand column of the sintering machine frame 8 through bolts and is positioned below the lower return stroke of the sintering machine trolley 1;
the transmitting device includes: the device comprises a sealed box body I, a fixed porous plate I2-3, a soft rubber buffer sleeve 2-7, a transmitting sensor 2-1, a threading tube I2-4, a lead I2-5, an air source connecting pipe I2-6, a light-transmitting cover I2-2 and a purging mechanism I, wherein the sealed box body I consists of a rectangular groove body I2-8 and an end cover I2-9 which is in sealing connection with the rectangular groove body I2-8, and the transmitting sensor 2-1 is a correlation laser switch transmitting sensor;
the sealing box body I is connected with the vertical pipes I10 and II 11 and is arranged on the sintering machine frame 8, the fixed porous plate I2-3 is arranged in the sealing box body I, the sealing box body I is divided into a wire cavity I and a compressed air cavity I, and the soft rubber buffer sleeves 2-7 are sleeved at two ends of the sealing box body I; the transmitting sensors 2-1 are equidistantly arranged on round holes corresponding to the fixed porous plates I2-3, a light-transmitting cover I2-2 is arranged on a convex round hole corresponding to each transmitting sensor 2-1 on the rectangular groove body I2-8, the threading tube I2-4 is arranged in a vertical tube I10 outside the end cover I2-9, one end of a wire I2-5 passing through the threading tube I2-4 is connected with each transmitting sensor 2-1, and the other end of the wire I2-4 is connected with the automatic control device 6;
the purging mechanism I comprises an air source connecting pipe I2-6 and a purging guide pipe I2-10, wherein the air source connecting pipe I2-6 penetrates through a vertical pipe II 11 arranged on the outer side of the end cover I2-9, one end of the air source connecting pipe I is connected with an air source, the other end of the air source connecting pipe I is communicated with the vertical pipe II 11 to form a compressed air cavity I, and the purging guide pipe I2-10 is obliquely arranged at the upper part in the transparent cover I2-2 and is used for guiding compressed air in the compressed air cavity I to purge the outer surface of the transparent cover I2-2;
the laser correlation receiver 3 comprises: a bracket II for fixing the receiving device and the receiving device 3,
the bracket II for fixing the receiving device consists of a cross rod II 12, a vertical pipe III 13 and a vertical pipe IV 14 which are vertically connected with the cross rod II 12; the cross rod II 12 is fixedly connected to the stand column of the sintering machine frame 8 through bolts and is positioned above the lower return stroke of the sintering machine trolley 1;
the receiving device includes: the device comprises a sealed box body II, a fixed porous plate II 3-3, a receiving sensor 3-1, a threading tube II 3-4, a lead II 3-5, an air source connecting pipe II 3-6, a light-transmitting cover II 3-2 and a blowing mechanism II, wherein the sealed box body II consists of a rectangular groove body II 3-7 and an end cover II 3-8 which is in sealing connection with the rectangular groove body II 3-7;
the sealing box body II is connected with the vertical pipes III 13 and IV 14 and arranged on the sintering machine frame 8, the fixed porous plate II 3-3 is arranged in the sealing box body II, the sealing box body II is divided into a wire cavity II and a compressed air cavity II, the receiving sensors 3-1 are equidistantly arranged on round holes corresponding to the fixed porous plate II 3-3, a light-transmitting cover II 3-2 is arranged on a convex round hole corresponding to each receiving sensor 3-1 on the rectangular groove body II 3-7, the threading tube II 3-4 is arranged in the vertical pipe III 13 outside the end cover II 3-8, one end of a wire II 3-5 through the threading tube II 3-4 is connected with each receiving sensor 3-1, the other end of the wire II is connected with the automatic control device 6, and the receiving sensors 3-1 are correlation laser switch receiving sensors;
the purging mechanism II comprises an air source connecting pipe II 3-6 and a purging guide pipe II, wherein the air source connecting pipe II 3-6 penetrates through a vertical pipe IV 14 arranged on the outer side of the end cover II 3-8, one end of the air source connecting pipe II is connected with an air source, the other end of the air source connecting pipe is communicated with the vertical pipe IV 14 to form a compressed air cavity II, and the purging guide pipe II is obliquely arranged at the upper part in the light-transmitting cover II 3-2 and is used for guiding compressed air in the compressed air cavity II to purge the outer surface of the light-transmitting cover II 3-2;
as shown in FIG. 5, the positioning assembly 4 comprises a positioning bottom plate 4-2 arranged on a trolley bearing seat of the sintering machine and three grate positioning blocks 4-1 arranged on the positioning bottom plate, wherein the centers of the three grate positioning blocks 4-1 respectively correspond to the central lines of the three rows of grate 7 of the trolley 1;
the positioning detection unit 5 comprises a fixed upright post 5-1, a torsion spring 5-2, a fixed pore plate 5-3, an inductive proximity switch 5-4 and a lead 5-5 which are fixedly connected to a cross rod II 12 through bolts, one end of the torsion spring 5-2 is fixed at the lower end of the fixed upright post 5-1, the other end of the torsion spring is connected with the fixed pore plate 5-3, the inductive proximity switch 5-4 is fixed on the fixed pore plate 5-3 through screws, and the inductive proximity switch 5-4 is connected with the automatic control device 6 through the lead 5-5.
As a further optimization of the invention, the grate positioning blocks 4-1 are transversely arranged corresponding to the centers of the grate 7 in each row of the sintering machine trolley 1, the longitudinal grate positioning blocks 4-1 are in a row, and the central connecting line of the grate positioning blocks 4-1 and the positioning detection unit 5 are in the same vertical plane.
As a further optimization of the present invention, the automatic control device 6 includes a PLC, a power module, a transmitting module, a receiving module, an alarm module, and a display screen. The state of all the grate bars of the sintering machine trolley is displayed on the touch screen, so that the codes and the positions of the fallen grate bars can be accurately displayed at a glance, alarm information can be remotely transmitted to a central control room for alarm prompt, and meanwhile, relevant reliable information is provided for operators to take measures.
The invention discloses a detection method of a grate falling off on-line detection device of a laser correlation sintering machine, which is characterized by comprising the following steps:
1) Sintering machine trolley code
Firstly, a sintering machine trolley, grate rows on the sintering machine trolley and the grate number 7 of each row are required to be encoded, wherein X is used for representing the number of the sintering machine trolley, n is used for representing the number of the grate of the X-th trolley, and Y is used for representing the position of each grate in the nth row of the grate; then, carrying out corresponding coding on the laser correlation detection group;
2) Detection device installation
The method comprises the steps that a receiving device 3 and a transmitting device 2 of a laser correlation sintering machine trolley grate falling off on-line detection device are respectively arranged at the upper part and the lower part of a sintering machine frame 8 through which a sintering machine trolley 1 passes in a return stroke, and a transmitting sensor 2-1 of the transmitting device 2 and a receiving sensor 3-1 of the receiving device 3 form a correlation detection mechanism; the positioning detection unit 5 is also arranged at the upper part of the sintering machine frame 8 on the lower return stroke of the trolley 1 like the receiving device 3; each row of grate of each sintering pallet 1 is correspondingly provided with a grate positioning block 4-1; is electrically connected with the automatic control device 6;
3) Detection device commissioning
Debugging the transmitting sensor 2-1 and the receiving sensor 3-1 to be in one-to-one vertical correspondence, wherein the transmitting sensor and the receiving sensor are positioned on the same vertical plane vertical to the trolley track of the sintering machine, and the inductive proximity switch 5-4 of the positioning detection unit 5 is also positioned in the vertical plane for detection;
4) Detection of
When the grate positioning block x+n runs below the positioning detection unit, detection starts, an inductive proximity switch of the positioning detection unit acts, a high-level signal is output, the condition of the (x+n) th grate row is detected, and the detection result of each grate of the (n) th grate row of the (x) th sintering machine trolley is output, namely Y groups of data; the state of the Y-th grate of the nth row of the X-th sintering pallet is displayed on a display screen of the automatic control device 6, the green color is normal, the red color is falling, the falling grate 7 is numbered and recorded, and an alarm is given, so that the online detection of the grate 7 of the sintering pallet 1 is realized.
The invention displays the states of all the grate bars of the sintering machine trolley on the touch screen, is clear at a glance, can accurately display the codes and the positions of the fallen grate bars, can remotely transmit alarm information to a central control room for alarm prompt, and simultaneously provides relevant reliable information for operators to take measures.
The application of the invention fills the blank that the grate of the vulnerable part of the sintering machine trolley falls off and cannot be detected, can effectively reduce the trouble and economic loss caused by the falling off of the grate of the sintering machine trolley, and greatly improves the working efficiency of the sintering production line. Meanwhile, the invention brings direct economic benefit and indirect social benefit to enterprises, so that the invention has wide market prospect.
The invention has the advantages of simple structure, stable measurement, high measurement precision and low cost.
Claims (5)
1. An online detection device for falling of a grate of a laser correlation sintering machine trolley comprises: the sintering machine frame, the track, a plurality of sintering machine trolleys which are arranged on the track and continuously run, and an automatic control device, wherein each sintering machine trolley mainly comprises wheels, baffle plates, cross beams and three rows of grate bars which are arranged among the cross beams and are horizontally and uniformly arranged,
the method is characterized in that: the device also comprises a laser correlation receiving mechanism and a laser correlation transmitting mechanism which are respectively arranged at the upper part of the sintering machine frame through which the sintering machine trolley passes by in a lower return stroke, a positioning component and a positioning detection unit,
the laser correlation type emission mechanism comprises: a bracket I for fixing the transmitting device and the transmitting device,
the bracket I for fixing the launching device consists of a cross rod I, a vertical pipe I and a vertical pipe II, wherein the vertical pipe I and the vertical pipe II are vertically connected with the cross rod I, and the cross rod I is fixedly connected to a stand column of a rack of the sintering machine through bolts and is positioned below a lower return stroke of a trolley of the sintering machine;
the transmitting device includes: the device comprises a sealed box body I, a fixed porous plate I, a soft rubber buffer sleeve and a transmitting sensor, wherein the sealed box body I consists of a rectangular groove body I and an end cover I which is in sealing connection with the rectangular groove body I;
the sealing box body I is connected with the vertical pipes I and II 11 and arranged below the lower return stroke of the sintering machine, the fixed porous plate I is arranged in the sealing box body I, the sealing box body I is divided into a wire cavity I and a compressed air cavity I, and the soft rubber buffer sleeves are sleeved at two ends of the sealing box body I; the transmitting sensors are equidistantly arranged on round holes corresponding to the fixed porous plate I, a light-transmitting cover I is arranged on a convex round hole corresponding to each transmitting sensor on the rectangular groove body I, the threading tube I is arranged in a vertical tube I outside the end cover I, one end of a wire I through the threading tube I is connected with each transmitting sensor, and the other end of the wire I is connected with the automatic control device;
the purging mechanism I comprises an air source connecting pipe I and a purging guide pipe I, wherein the air source connecting pipe I penetrates through a vertical pipe II arranged on the outer side of the end cover I, one end of the air source connecting pipe I is connected with an air source, the other end of the air source connecting pipe I is communicated with the vertical pipe II to form a compressed air cavity I, and the purging guide pipe I is obliquely arranged on the upper inner part of the transparent cover I and used for guiding compressed air in the compressed air cavity I to purge the outer surface of the transparent cover I;
the laser correlation receiving mechanism comprises: a bracket II for fixing the receiving device and the receiving device,
the bracket II for fixing the receiving device consists of a cross rod II, a vertical pipe III and a vertical pipe IV which are vertically connected with the cross rod II; the cross rod II is fixedly connected to the stand column of the sintering machine frame through a bolt and is positioned above the lower return stroke of the sintering machine trolley;
the receiving device includes: the device comprises a sealed box body II, a fixed porous plate II, a receiving sensor, a threading tube II, a lead II, an air source connecting pipe II, a light-transmitting cover II and a purging mechanism II, wherein the sealed box body II consists of a rectangular groove body II and an end cover II which is in sealing connection with the rectangular groove body II;
the sealing box body II is connected with the vertical pipes III and IV and arranged above the lower return stroke of the sintering machine, the fixed porous plate II is arranged in the sealing box body II, the sealing box body II is divided into a wire cavity II and a compressed air cavity II, receiving sensors are equidistantly arranged on round holes corresponding to the fixed porous plate II, a light-transmitting cover II is arranged on a convex round hole corresponding to each receiving sensor on the rectangular groove body II, a threading tube II is arranged in the vertical pipe III outside the end cover II, one end of a wire II through the threading tube II is connected with each receiving sensor, and the other end of the wire II is connected with the automatic control device;
the purging mechanism II comprises an air source connecting pipe II and a purging guide pipe II, the air source connecting pipe II penetrates through a vertical pipe IV arranged on the outer side of the end cover II, one end of the air source connecting pipe II is connected with an air source, the other end of the air source connecting pipe II is communicated with the vertical pipe IV to form a compressed air cavity II, and the purging guide pipe II is obliquely arranged on the upper inner part of the light-transmitting cover II and used for guiding compressed air in the compressed air cavity II to purge the outer surface of the light-transmitting cover II;
the positioning assembly comprises a positioning bottom plate arranged on a bearing seat of each trolley and three grate positioning blocks arranged on the positioning bottom plate, and the centers of the grate positioning blocks respectively correspond to the central lines of the three rows of grate bars of the trolley;
the positioning detection unit comprises a fixed upright post, a torsion spring, a fixed pore plate, an inductive proximity switch and a wire, wherein the fixed upright post is fixedly connected to the cross rod II through a bolt, one end of the torsion spring is fixed to the lower end of the fixed upright post, the other end of the torsion spring is connected with the fixed pore plate, the inductive proximity switch is fixed to the fixed pore plate through a screw, and the inductive proximity switch is connected with the automatic control device through the wire.
2. The device for detecting the falling off of the grate of the trolley of the laser correlation sintering machine on line according to claim 1, wherein the grate positioning blocks are transversely arranged corresponding to the centers of the grate of each row of the trolley of the sintering machine, the longitudinal grate positioning blocks are in a row, and the central connecting line of the grate positioning blocks and the positioning detection unit are in the same vertical plane.
3. The online detection device for the falling off of the grate of the laser correlation sintering machine trolley according to claim 1, wherein the automatic control device comprises a PLC, a power supply module, a transmitting module, a receiving module, an alarm module and a display screen.
4. The online detection device for grate drop of laser correlation sintering machine trolley according to claim 1, wherein the emission sensor is a correlation laser switch emission sensor; the receiving sensor is a correlation laser switch receiving sensor.
5. The detection method of the online detection device for the grate drop of the trolley of the laser correlation sintering machine is characterized by comprising the following steps of:
1) Sintering machine trolley code
Firstly, a sintering machine trolley, grate rows on the sintering machine trolley and the grate numbers of each row are required to be encoded, wherein X is used for representing the number of the sintering machine trolley, n is used for representing the grate row of the X-th sintering machine trolley, and Y is used for representing the position of each grate in the nth row of grate; then, carrying out corresponding coding on the laser correlation detection group;
2) Detection device installation
The method comprises the steps that a receiving device and a transmitting device of a laser correlation sintering machine trolley grate falling off on-line detection device are respectively arranged at the upper part and the lower part of a sintering machine frame through which a trolley passes in a return stroke, and a transmitting sensor of the transmitting device and a receiving sensor of the receiving device form a group of correlation detection mechanisms; the positioning detection unit is also arranged at the upper part of the sintering machine frame through which the trolley passes by in a return stroke like the receiving device; arranging a grate positioning block corresponding to each row of grate of each sintering pallet; is electrically connected with the automatic control device;
3) Detection device commissioning
Debugging the transmitting sensor and the receiving sensor to be in one-to-one vertical correspondence, wherein the transmitting sensor and the receiving sensor are positioned on the same vertical plane vertical to the trolley track, and an inductive proximity switch of the positioning detection unit is also positioned in the vertical plane for detection;
4) Detection of
When the grate positioning block x+n runs below the positioning detection unit, detection starts, an inductive proximity switch of the positioning detection unit acts, a high-level signal is output, the condition of the (x+n) th grate row is detected, and the detection result of each grate of the (n) th grate row of the (x) th sintering machine trolley is output, namely Y groups of data; the state of the Y-th grate of the nth row of the X-th trolley is displayed on a display screen picture of the automatic control device, the green color is normal, the red color is falling off, the falling-off grate is numbered and recorded, and an alarm is given, so that the online detection of the grate of the sintering machine trolley is realized.
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| CN201910512969.XA CN110094988B (en) | 2019-06-14 | 2019-06-14 | Device and method for online detection of grate falling off of trolley of laser correlation sintering machine |
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