CN115818162B - Method and system for detecting blockage of ore discharging hopper - Google Patents
Method and system for detecting blockage of ore discharging hopper Download PDFInfo
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- CN115818162B CN115818162B CN202211447542.4A CN202211447542A CN115818162B CN 115818162 B CN115818162 B CN 115818162B CN 202211447542 A CN202211447542 A CN 202211447542A CN 115818162 B CN115818162 B CN 115818162B
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- 238000007599 discharging Methods 0.000 title claims abstract description 166
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 285
- 239000002390 adhesive tape Substances 0.000 claims abstract description 236
- 238000012546 transfer Methods 0.000 claims abstract description 127
- 238000009825 accumulation Methods 0.000 claims description 25
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 17
- 238000013459 approach Methods 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- GHMWZRWCBLXYBX-UHFFFAOYSA-M sodium;4-chlorobenzoate Chemical compound [Na+].[O-]C(=O)C1=CC=C(Cl)C=C1 GHMWZRWCBLXYBX-UHFFFAOYSA-M 0.000 claims description 6
- 239000008207 working material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 2
- 230000008092 positive effect Effects 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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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
- Y02P10/20—Recycling
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Abstract
The invention discloses a method and a system for detecting blockage of an ore discharging hopper, wherein the method comprises the following steps: measuring a belt conveyor in the process of working and transporting materials, and respectively obtaining the running speed of a feeding belt and the running speed of a discharging belt; obtaining the volume of the material conveyed by the feeding adhesive tape to the transfer hopper and the volume of the material conveyed by the transfer hopper to the discharging adhesive tape based on the running speed of the feeding adhesive tape and the running speed of the discharging adhesive tape; and judging whether the transfer hopper works normally or not according to the volume of the material conveyed to the transfer hopper by the feeding adhesive tape and the volume of the material conveyed to the discharging adhesive tape by the transfer hopper. The blockage fault of the transfer hopper can be detected rapidly and efficiently, the fault transfer hopper can be processed timely, the normal operation of a production line is ensured, and the method has positive effects on smooth development of production.
Description
Technical Field
The invention relates to the technical field of material transportation, in particular to a method and a system for detecting blockage of an ore discharging hopper.
Background
In the material conveying process, a large amount of adhesive tape machines and transfer hoppers are used. However, in the production process, the transfer hopper is often blocked due to the reasons of large blocks, foreign matters or faults of the discharging adhesive tape. If the transfer hopper is blocked, the materials in the hopper are accumulated continuously, so that the feeding adhesive tape is extremely easy to damage, and even accidents of personal and equipment injury are caused. For this reason, various methods and systems for detecting the blockage of the transfer hopper have been devised in an attempt to solve this problem. However, most of these detection methods and systems are to install sensors inside and outside the transfer hopper, and determine whether the hopper is blocked by detecting the accumulation of materials in the hopper. Due to the influence of factors such as material flow interference in the transfer hopper, heavy dust, strong vibration and the like, the defects of inaccurate detection, easy damage of a sensor and the like exist.
Disclosure of Invention
The invention aims to provide a method and a system for detecting blockage of an ore discharging funnel, which are used for simultaneously detecting the accumulation condition of materials on a feeding adhesive tape and a discharging adhesive tape of a transfer funnel and carrying out correlation comparison so as to judge whether the transfer funnel is blocked or not.
In order to achieve the above object, the present invention provides a method for detecting clogging of an ore discharging hopper, comprising:
Measuring a belt conveyor in the process of working and transporting materials, and respectively obtaining the running speed of a feeding belt and the running speed of a discharging belt;
obtaining the volume of the material conveyed by the feeding adhesive tape to the transfer hopper and the volume of the material conveyed by the transfer hopper to the discharging adhesive tape based on the running speed of the feeding adhesive tape and the running speed of the discharging adhesive tape;
And judging whether the transfer hopper works normally or not according to the volume of the material conveyed to the transfer hopper by the feeding adhesive tape and the volume of the material conveyed to the discharging adhesive tape by the transfer hopper.
Further, the measuring the belt machine when the material is transported, the moving speed of the feeding belt and the moving speed of the discharging belt are respectively obtained, comprising,
A first belt speed detector and a second belt speed detector are respectively arranged above a feeding belt and a discharging belt of the belt conveyor;
measuring a tape machine during material conveying by using a first tape speed detector and a second tape speed detector, respectively obtaining the running speed of a feeding tape and the running speed of a discharging tape, and sending the running speeds to a controller;
The controller is respectively connected with the first belt speed detector and the second belt speed detector.
Further, a first belt speed detector and a second belt speed detector are respectively arranged on a feeding belt and a discharging belt of the belt conveyor, comprising,
The measuring wheel is arranged on the rotary encoder, and the feeding adhesive tape and the discharging adhesive tape are in reliable surface contact with the corresponding measuring wheel; wherein the first and second belt speed detectors each comprise a measuring wheel and a rotary encoder;
When the feeding adhesive tape and the discharging adhesive tape run, the measuring wheel is driven to rotate, so that the rotary encoder synchronously rotates;
when the rotary encoder rotates, the rotary encoder converts the mechanical quantity rotated by the rotary encoder into corresponding electric pulses and outputs the corresponding electric pulses in digital quantity;
The first belt speed detector and the second belt speed detector acquire the corresponding movement speed of the feeding adhesive tape or the movement speed of the discharging adhesive tape according to the electric pulse output by the corresponding rotary encoder in a digital quantity.
Further, the operation speed of the corresponding feeding adhesive tape or the operation speed of the discharging adhesive tape is obtained as follows:
v＝2πrn
wherein V represents the running speed of the feeding adhesive tape or the discharging adhesive tape, r represents the radius of the measuring wheel, and n represents the rotating speed of the measuring wheel.
Further, the method for obtaining the volume of the material conveyed by the feeding rubber belt to the transfer hopper and the volume of the material conveyed by the transfer hopper to the discharging rubber belt comprises the following steps of,
Respectively carrying out material detection scanning on a feeding adhesive tape and a discharging adhesive tape of the adhesive tape machine, and correspondingly obtaining material stacking outlines of the feeding adhesive tape and the discharging adhesive tape;
according to the material accumulation profile of the feeding adhesive tape and the discharging adhesive tape and the running speed of the feeding adhesive tape and the discharging adhesive tape, the material volume of the feeding adhesive tape conveyed to the transfer hopper and the material volume of the transfer hopper conveyed to the discharging adhesive tape are respectively obtained.
Further, the corresponding material stacking profile of the feeding adhesive tape and the discharging adhesive tape comprises,
A first material detector and a second material detector are respectively arranged above the feeding adhesive tape and the discharging adhesive tape; wherein, the first material detector and the second material detector are both non-contact two-dimensional laser scanners;
The material detection scanning is carried out on the feeding adhesive tape and the discharging adhesive tape of the adhesive tape machine through the first material detector and the second material detector, so that corresponding material stacking contours are respectively obtained and sent to the controller;
The controller is respectively connected with the first material detector and the second material detector.
Further, the volume of the material conveyed by the feeding rubber belt to the transfer hopper and the volume of the material conveyed by the transfer hopper to the discharging rubber belt are respectively obtained, comprising,
The controller regards the received material accumulation profile of the feeding adhesive tape and the material accumulation profile of the discharging adhesive tape as the accumulated material volumes of a plurality of curved micro material strips according to the principle of calculus;
Regarding each curved surface micro-material strip as the accumulation of a plurality of curved surface micro-material elements;
When the curved surface micro material element approaches infinity, the curved surface micro material element is equivalent to a flat top column with the length, width and height of x, y and z respectively;
the controller calculates the value of each flat jacking column according to the running speeds of the feeding adhesive tape and the discharging adhesive tape, and finally the material volume is obtained;
the material volume is:
S represents the accumulated material volume of a plurality of curved micro material strips, namely the material volume of a feeding adhesive tape conveyed to a transfer hopper or the material volume of the transfer hopper conveyed to a discharging adhesive tape; l represents the number of curved surface micro-material strips, i represents the serial number of the curved surface micro-material strips, deltaS i represents the volume of the ith curved surface micro-mineral strip, m represents the number of curved surface micro-material elements, j represents the number of curved surface micro-material elements, deltaS j represents the volume of the jth curved surface micro-material elements, deltax i represents the length of the ith curved surface micro-mineral strip; Δy j represents the width of the jth curved surface micro-bin, and Δz j represents the height of the jth curved surface micro-bin.
Further, when a curved surface micro-material element Δs j approaches infinity, the length of the flat top column is:
Δxi＝vΔti＝2πrnΔti
Wherein Deltax i represents the length of the ith curved surface micro-material strip, V represents the running speed of the feeding adhesive tape or the discharging adhesive tape, deltat i represents one scanning period of the ith curved surface micro-material strip under a two-dimensional laser scanner, r represents the radius of the measuring wheel, and n represents the rotating speed of the measuring wheel;
The width of the flat top column is as follows:
Wherein Δy j represents the width of the jth curved surface micro-material element, θ j represents the deflection angle of the laser beam emitted when the jth curved surface micro-material element is scanned by the two-dimensional laser scanner, and h j represents the distance measured when the jth curved surface micro-material element is scanned by the two-dimensional laser scanner;
The height of the flat top column is as follows:
Δzj＝H-hj cosθj
wherein DeltaZ j represents the height of the j-th curved surface micro material element, and H is the mounting height of the two-dimensional laser scanner.
Further, according to the volume of the material conveyed to the transfer hopper by the feeding rubber belt and the volume of the material conveyed to the discharging rubber belt by the transfer hopper, judging whether the transfer hopper works normally or not, comprising,
The controller compares the obtained material volume S Feeding in of the feeding adhesive tape conveyed to the transfer hopper with the material volume S Out of of the transfer hopper conveyed to the discharging adhesive tape, and judges whether S Feeding in and S Out of are balanced or not:
if S Feeding in and S Out of are balanced, judging that the operation of the transfer hopper is normal;
If S Feeding in and S Out of are unbalanced, the operation of the transfer hopper is judged to be abnormal, and the controller sends out fault alarm information or a shutdown instruction.
The invention also provides a system for detecting the blockage of the ore discharging hopper, which comprises a measuring unit, an obtaining unit and a judging unit,
The measuring unit is used for measuring the belt conveyor during working and transporting materials and respectively obtaining the running speed of the feeding belt and the running speed of the discharging belt;
The acquisition unit is used for acquiring the volume of the material conveyed to the transfer hopper by the feeding adhesive tape and the volume of the material conveyed to the discharging adhesive tape by the transfer hopper based on the running speed of the feeding adhesive tape and the running speed of the discharging adhesive tape;
the judging unit is used for judging whether the transfer hopper works normally or not according to the volume of the materials conveyed to the transfer hopper by the feeding adhesive tape and the volume of the materials conveyed to the discharging adhesive tape by the transfer hopper;
Wherein, install feeding sticky tape and ejection of compact sticky tape on the sealing-tape machine, the feeding sticky tape with install the transshipment funnel between the ejection of compact sticky tape.
Further, the measuring unit comprises a first belt speed detector and a second belt speed detector;
the first belt speed detector is arranged above a feeding adhesive tape of the adhesive tape machine, and the second belt speed detector is arranged above a discharging adhesive tape of the adhesive tape machine;
the first belt speed detector is used for measuring a feeding belt of the belt conveyor during working and conveying, obtaining the running speed of the feeding belt and sending the running speed to the controller;
the second belt speed detector is used for measuring a discharging adhesive belt of the adhesive belt machine during working and conveying materials, obtaining the running speed of the discharging adhesive belt and sending the running speed to the controller;
The controller is respectively connected with the first belt speed detector and the second belt speed detector.
Further, the acquisition unit comprises a first material detector, a second material detector and a controller;
the controller is respectively connected with the first material detector and the second material detector;
The first material detector is used for carrying out material detection scanning on a feeding adhesive tape of the adhesive tape machine, correspondingly obtaining a material stacking contour of the feeding adhesive tape and sending the material stacking contour to the controller;
The second material detector is used for carrying out material detection scanning on the discharging adhesive tape of the adhesive tape machine, correspondingly obtaining the material stacking outline of the discharging adhesive tape and sending the material stacking outline to the controller;
The controller is used for respectively obtaining the material volume of the material conveyed to the transfer hopper by the feeding adhesive tape and the material volume of the material conveyed to the discharging adhesive tape by the transfer hopper according to the material accumulation profile of the feeding adhesive tape and the discharging adhesive tape and the running speed of the feeding adhesive tape and the discharging adhesive tape.
Further, the judging unit includes a controller, and the controller is configured to compare the calculated material volume S Feeding in of the feeding adhesive tape delivered to the transfer funnel with the calculated material volume S Out of of the transfer funnel delivered to the discharging adhesive tape, and judge whether S Feeding in and S Out of are balanced:
if S Feeding in and S Out of are balanced, judging that the operation of the transfer hopper is normal;
If S Feeding in and S Out of are unbalanced, the operation of the transfer hopper is judged to be abnormal, and the controller sends out fault alarm information or a shutdown instruction.
The invention has the technical effects and advantages that: according to the invention, the accumulation conditions of materials on the feeding adhesive tape and the discharging adhesive tape of the transfer hopper are detected at the same time, and the relative comparison is carried out to judge whether the transfer hopper is blocked; the blockage fault of the transfer hopper can be detected rapidly and efficiently, the fault transfer hopper can be processed timely, the normal operation of a production line is ensured, and the method has positive effects on smooth development of production.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of steps of a method for detecting clogging of an ore hopper according to an embodiment of the present invention;
FIG. 2 is a front view of a structure of a hopper jam detection system and a tape dispenser according to an embodiment of the present invention;
FIG. 3 is a side view of the structure of the feeding or discharging tape of the tape dispenser according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the first and second belt speed detectors according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of calculation of material volume in an embodiment of the present invention;
FIG. 6 is a schematic diagram of a system for detecting clogging of an unloading hopper according to an embodiment of the present invention;
FIG. 7 is a schematic view of a structure of a tape dispenser according to an embodiment of the present invention when a transfer hopper is jammed;
In the figure, 1, a first material detector; 2. a second material detector; 3. a first belt speed detector; 4. a second belt speed detector; 5. a controller; 6. feeding adhesive tape; 7. discharging adhesive tape; 8. a transfer hopper; 9. a measuring wheel; 10. a rotary encoder; 11. an output shaft; 12. a forward conveyor belt; 13. a return conveyor belt; 14. a first idler; 15. a second idler; 16. and a third carrier roller.
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.
In order to solve the defects in the prior art, the invention discloses a method for detecting blockage of an ore discharging hopper, which is shown in fig. 1 and comprises the following steps:
S1, measuring a belt conveyor during working and transporting, and respectively obtaining the running speed of a feeding belt 6 and the running speed of a discharging belt 7;
s2, based on the running speed of the feeding adhesive tape 6 and the running speed of the discharging adhesive tape 7, obtaining the volume of the material conveyed by the feeding adhesive tape 6 to the transfer hopper 8 and the volume of the material conveyed by the transfer hopper 8 to the discharging adhesive tape 7;
And S3, judging whether the transfer hopper 8 works normally or not according to the volume of the material conveyed to the transfer hopper 8 by the feeding adhesive tape 6 and the volume of the material conveyed to the discharging adhesive tape 7 by the transfer hopper 8.
The method comprises the following steps:
S1, measuring a belt conveyor during working and transporting, and respectively obtaining the running speed of a feeding belt 6 and the running speed of a discharging belt 7, wherein the belt conveyor specifically comprises the following steps:
As shown in fig. 2, the belt conveyor comprises a feeding belt 6, a discharging belt 7 and a transfer hopper 8, wherein the transfer hopper 8 is arranged between the feeding belt 6 and the discharging belt 7, and materials on the feeding belt 6 are conveyed to the discharging belt 7 through the transfer hopper 8; wherein, the transfer hopper 8 includes inlet pipe and discharging pipe, and inlet pipe and discharging pipe fixed connection have seted up the feed inlet on the inlet pipe, and feed sticky tape 6 one end is located the inlet pipe through the feed inlet, and the discharging pipe mouth of pipe is located the top of discharging sticky tape 7, and the discharging pipe inclines towards the one end of the discharging sticky tape 7 of keeping away from the transfer hopper 8.
A first belt speed detector 3 and a second belt speed detector 4 are respectively arranged on a feeding belt 6 and a discharging belt 7 of the belt conveyor;
measuring a tape machine during working and transporting by a first tape speed detector 3 and a second tape speed detector 4, respectively obtaining the running speed of a feeding adhesive tape 6 and the running speed of a discharging adhesive tape 7, and sending the running speeds to a controller 5;
Wherein a controller 5 is connected to the first belt speed detector 3 and the second belt speed detector 4, respectively.
The method comprises the following steps:
As shown in fig. 3, since the feeding belt 6 and the discharging belt 7 both adopt a conveyor belt mode to convey materials, the feeding belt 6 and the discharging belt 7 both comprise an outgoing conveyor belt 12 and a return conveyor belt 13, and the outgoing conveyor belt 12 and the return conveyor belt 13 are integrated into an annular conveyor belt; a go-down Cheng Tuogun for auxiliary support is arranged below the go-down conveyor belt 12, and a return carrier roller for auxiliary support is arranged below the return conveyor belt 13;
The conveying belt conveying device comprises a conveying belt conveying device, a conveying belt conveying device and a conveying device, wherein the conveying device comprises a conveying belt conveying device 12, a conveying unit and a conveying unit, wherein the conveying device Cheng Tuogun comprises a first carrier roller 14 and a second carrier roller 15, the first carrier roller 14 is arranged below the conveying belt conveying device 12, the second carrier rollers 15 which are inclined are arranged on two sides of the first carrier roller 14 and are used for supporting the conveying belt conveying device 12 in an auxiliary mode, and when the conveying belt conveying device 12 runs, friction force is generated to drive the second carrier rollers 15 on two sides below to rotate; the second carrier roller 15 is arranged to incline, so that the materials cannot easily fall outside the adhesive tape machine, and the materials can be conveniently scanned by the first material detector 1 and the second material detector 2; the return idler comprises two slightly inclined third idlers 16.
Accordingly, the first belt speed detector 3 and the second belt speed detector 4 are mounted on the return conveyor 13 of the feeding adhesive tape 6 and the return conveyor 13 of the discharging adhesive tape 7, respectively; as shown in fig. 4, each of the first belt speed detector 3 and the second belt speed detector 4 includes a measuring wheel 9 and a rotary encoder 10, the measuring wheel 9 is mounted on an output shaft 11 of the rotary encoder 10, and both the return belt 13 of the feeding adhesive tape 6 and the return belt 13 of the discharging adhesive tape 7 are in surface-reliable contact with the corresponding measuring wheel 9.
When the feeding adhesive tape 6 and the discharging adhesive tape 7 run, the measuring wheel 9 is driven to rotate, so that the output shaft 11 of the rotary encoder 10 synchronously rotates, and at the moment, the rotary encoder 10 converts the mechanical quantity of the rotation of the output shaft 11 of the rotary encoder 10 into corresponding electric pulses to be output in a digital quantity;
The first belt speed detector 3 and the second belt speed detector 4 obtain the movement speed of the corresponding feeding adhesive belt 6 or discharging adhesive belt 7 in digital quantity according to the electric pulse output by the corresponding rotary encoder 10.
The corresponding running speed of the feeding adhesive tape 6 or the discharging adhesive tape 7 is obtained:
V＝2πrn
Where V denotes the running speed of the infeed or outfeed tapes 6, 7, r denotes the radius of the measuring wheel 9, and n denotes the rotational speed of the measuring wheel 9.
S2, based on the running speed of the feeding adhesive tape 6 and the running speed of the discharging adhesive tape 7, the material volume of the feeding adhesive tape 6 conveyed to the transfer hopper 8 and the material volume of the transfer hopper 8 conveyed to the discharging adhesive tape 7 are obtained, and the method specifically comprises the following steps:
a first material detector 1 and a second material detector 2 are respectively arranged above the feeding adhesive tape 6 and the discharging adhesive tape 7; wherein, the first material detector 1 and the second material detector 2 are both non-contact two-dimensional laser scanners; the controller 5 is respectively connected with the first material detector 1 and the second material detector 2;
the first material detector 1 performs material detection scanning on the feeding adhesive tape 6, obtains the material stacking profile of the feeding adhesive tape 6 and sends the material stacking profile to the controller 5;
the second material detector 2 carries out material detection scanning on the discharging adhesive tape 7, obtains the material stacking contour of the discharging adhesive tape 7 and sends the material stacking contour to the controller 5;
the controller 5 obtains the volume of the material conveyed by the feeding adhesive tape 6 to the transfer hopper 8 and the volume of the material conveyed by the transfer hopper 8 to the discharging adhesive tape 7 according to the material accumulation outlines of the feeding adhesive tape 6 and the discharging adhesive tape 7 and the running speeds of the feeding adhesive tape 6 and the discharging adhesive tape 7 respectively. The method comprises the following steps:
as shown in fig. 5, the controller 5 regards the received material accumulation profile of the feeding adhesive tape 6 or the material accumulation profile of the discharging adhesive tape 7 as the accumulated material volume of a plurality of curved micro-material strips according to the principle of calculus;
Regarding each curved surface micro-material strip as the accumulation of a plurality of curved surface micro-material elements;
when a curved surface micro material element approaches infinity, the curved surface micro material element is equivalent to a flat top column with the length, width and height of x, y and z respectively;
the controller 5 calculates the volume of the material of the feeding adhesive tape 6 to the transfer hopper 8 or the volume of the material of the transfer hopper 8 to the discharging adhesive tape 7 as follows:
S represents the accumulated material volume of a plurality of curved micro-material strips, namely the material volume of the feeding adhesive tape 6 conveyed to the transfer hopper 8 or the material volume of the transfer hopper 8 conveyed to the discharging adhesive tape 7; l represents the number of curved surface micro-material strips, i represents the serial number of the curved surface micro-material strips, and DeltaS i represents the volume of the ith curved surface micro-mineral strip; m represents the number of curved surface micro-material elements, j represents the number of curved surface micro-material elements, and DeltaS j represents the volume of the j-th curved surface micro-material element; Δx i represents the length of the ith curved surface micro-strip, Δy j represents the width of the jth curved surface micro-element, and Δz j represents the height of the jth curved surface micro-element.
As shown in fig. 5, the length, width and height of the flat top column are required to be calculated and obtained by the set height H of the two-dimensional laser scanner, the deflection angle theta j of the laser beam emitted by the two-dimensional laser scanner and the distance H j measured when the deflection angle theta j of the laser beam emitted by the two-dimensional laser scanner;
Therefore, when one curved surface micro material element delta S j approaches infinity, the length of the flat top column is as follows:
Δxi＝vΔti＝2πrnΔti
Wherein Deltax i represents the length of the ith curved surface micro-material strip, V represents the running speed of the feeding adhesive tape or the discharging adhesive tape, deltat i represents one scanning period of the ith curved surface micro-material strip under a two-dimensional laser scanner, r represents the radius of the measuring wheel, and n represents the rotating speed of the measuring wheel;
The width of the flat top column is as follows:
Wherein Δy j represents the width of the jth curved surface micro-material element, θ j represents the deflection angle of the laser beam emitted when the jth curved surface micro-material element is scanned by the two-dimensional laser scanner, and h j represents the distance measured when the jth curved surface micro-material element is scanned by the two-dimensional laser scanner;
The height of the flat top column is as follows:
Δzj＝H-hj cosθj
wherein DeltaZ j represents the height of the j-th curved surface micro material element, and H is the mounting height of the two-dimensional laser scanner.
S3, judging whether the transfer hopper 8 works normally or not according to the volume of the material conveyed to the transfer hopper 8 by the feeding adhesive tape 6 and the volume of the material conveyed to the discharging adhesive tape 7 by the transfer hopper 8, and comprising:
the controller 5 compares the calculated material volume S Feeding in of the feeding adhesive tape 6 to the transfer funnel 8 and the calculated material volume S Out of of the transfer funnel 8 to the discharging adhesive tape 7, and determines whether S Feeding in and S Out of are balanced:
if S Feeding in and S Out of are balanced, judging that the operation of the transfer hopper 8 is normal;
if S Feeding in and S Out of are unbalanced, the operation of the transfer hopper 8 is judged to be abnormal, and the controller 5 sends out fault alarm information or a shutdown instruction.
The invention also discloses a system for detecting the blockage of the ore discharging hopper, which is shown in figure 6 and comprises a measuring unit, an obtaining unit and a judging unit,
The measuring unit is used for measuring the belt conveyor during working and transporting materials and respectively obtaining the running speed of the feeding belt 6 and the running speed of the discharging belt 7; in particular to a special-shaped ceramic tile,
The belt conveyor comprises a feeding belt 6, a discharging belt 7 and a transfer hopper 8, wherein materials on the feeding belt 6 are conveyed to the discharging belt 7 through the transfer hopper 8;
the measuring unit comprises a first belt speed detector 3 and a second belt speed detector 4, wherein the first belt speed detector 3 is arranged above a feeding adhesive tape 6 of the adhesive tape machine, and the second belt speed detector 4 is arranged above a discharging adhesive tape 7 of the adhesive tape machine; the first belt speed detector 3 and the second belt speed detector 4 are connected with the controller 5;
The first belt speed detector 3 is used for measuring a feeding belt 6 of the belt conveyor during working and transporting, obtaining the running speed of the feeding belt 6 and sending the running speed to the controller 5;
and the second belt speed detector 4 is used for measuring the discharging adhesive belt 7 of the adhesive belt machine during working and transporting materials, obtaining the running speed of the discharging adhesive belt 7 and sending the running speed to the controller 5.
An obtaining unit, configured to obtain a volume of material that is conveyed by the feeding adhesive tape 6 to the transfer hopper 8 and a volume of material that is conveyed by the transfer hopper 8 to the discharging adhesive tape 7 based on an operation speed of the feeding adhesive tape 6 and an operation speed of the discharging adhesive tape 7; in particular to a special-shaped ceramic tile,
The acquisition unit comprises a first material detector 1, a second material detector 2 and a controller 5; wherein the controller 5 is respectively connected with the first material detector 1 and the second material detector 2;
the first material detector 1 is used for carrying out material detection scanning on the feeding adhesive tape 6, obtaining the material accumulation profile of the feeding adhesive tape 6 and sending the material accumulation profile to the controller 5.
The second material detector 2 is used for carrying out material detection scanning on the discharging adhesive tape 7, obtaining the material stacking contour of the discharging adhesive tape 7 and sending the material stacking contour to the controller 5;
The controller 5 is used for respectively obtaining the volume of the material conveyed to the transfer hopper 8 by the feeding adhesive tape 6 and the volume of the material conveyed to the discharge adhesive tape 7 by the transfer hopper 8 according to the material accumulation outlines of the feeding adhesive tape 6 and the discharge adhesive tape 7 and the running speeds of the feeding adhesive tape 6 and the discharge adhesive tape 7.
The judging unit is used for judging whether the transfer hopper 8 works normally according to the volume of the material conveyed to the transfer hopper 8 by the feeding adhesive tape 6 and the volume of the material conveyed to the discharging adhesive tape 7 by the transfer hopper 8; in particular to a special-shaped ceramic tile,
The judging unit comprises a controller 5, and the controller 5 is used for comparing the calculated material volume S Feeding in of the feeding adhesive tape 6 conveyed to the transfer hopper 8 with the calculated material volume S Out of of the transfer hopper 8 conveyed to the discharging adhesive tape 7, so as to judge whether S Feeding in and S Out of are balanced or not:
if S Feeding in and S Out of are balanced, judging that the operation of the transfer hopper 8 is normal;
if S Feeding in and S Out of are unbalanced, the operation of the transfer hopper 8 is judged to be abnormal, and the controller 5 sends out fault alarm information or a shutdown instruction.
As shown in fig. 7, when the transfer hopper 8 does not work normally, it may be stated that the transfer hopper 8 is blocked when the material is transported, and although the feeding rubber belt 6 and the discharging rubber belt 7 still run at this time, the transfer hopper 8 is less in material transported onto the discharging rubber belt 7 because of the blocking of the material at the transfer hopper 8, so that the volume of the material transported to the discharging rubber belt 7 by the transfer hopper 8 is smaller than the volume of the material transported to the transfer hopper 8 by the feeding rubber belt 6.
The specific manner in which the respective unit modules perform the operations in the above-described embodiments has been described in detail in relation to the embodiments of the method, and will not be described in detail herein.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A method for detecting blockage of an ore discharging hopper is characterized by comprising the steps of,
Measuring a belt conveyor during working and conveying, and respectively obtaining the running speed of a feeding belt (6) and the running speed of a discharging belt (7);
Based on the running speed of the feeding adhesive tape (6) and the running speed of the discharging adhesive tape (7), the material volume of the feeding adhesive tape (6) conveyed to the transfer hopper (8) and the material volume of the transfer hopper (8) conveyed to the discharging adhesive tape (7) are respectively obtained;
Judging whether the transfer hopper (8) works normally or not according to the volume of the material conveyed to the transfer hopper (8) by the feeding adhesive tape (6) and the volume of the material conveyed to the discharging adhesive tape (7) by the transfer hopper (8);
Wherein, the belt conveyor used for measuring the working material is used for respectively obtaining the movement speed of the feeding belt (6) and the movement speed of the discharging belt (7),
A first belt speed detector (3) and a second belt speed detector (4) are respectively arranged above a feeding adhesive tape (6) and a discharging adhesive tape (7) of the adhesive tape machine;
measuring a tape machine during working and transporting by a first tape speed detector (3) and a second tape speed detector (4), respectively obtaining the running speed of a feeding tape (6) and the running speed of a discharging tape (7), and sending the running speeds to a controller (5);
wherein the controller (5) is connected with the first belt speed detector (3) and the second belt speed detector (4) respectively;
Respectively obtain the material volume that feed adhesive tape (6) carried to transfer funnel (8) and the material volume that transfer funnel (8) carried to ejection of compact adhesive tape (7), include:
the controller (5) regards the received material accumulation profile of the feeding adhesive tape (6) and the material accumulation profile of the discharging adhesive tape (7) as the accumulated material volumes of a plurality of curved micro material strips according to the principle of calculus;
Regarding each curved surface micro-material strip as the accumulation of a plurality of curved surface micro-material elements;
When the curved surface micro material element approaches infinity, the curved surface micro material element is equivalent to a flat top column with the length, width and height of x, y and z respectively;
the controller (5) calculates the value of each flat top column according to the running speeds of the feeding adhesive tape (6) and the discharging adhesive tape (7), and finally obtains the material volume;
the material volume is:
s represents the accumulated material volume of a plurality of curved micro-material strips, namely the material volume of a feeding adhesive tape (6) conveyed to a transfer hopper (8) or the material volume of the transfer hopper (8) conveyed to a discharging adhesive tape (7); l represents the number of curved surface micro-material strips, i represents the serial number of the curved surface micro-material strips, deltaS i represents the volume of the ith curved surface micro-mineral strip, m represents the number of curved surface micro-material elements, j represents the number of curved surface micro-material elements, deltaS j represents the volume of the jth curved surface micro-material elements, deltax i represents the length of the ith curved surface micro-mineral strip; Δy j represents the width of the jth curved surface micro-bin, and Δz j represents the height of the jth curved surface micro-bin.
2. The method for detecting the blockage of an ore discharging hopper according to claim 1, wherein a first belt speed detector (3) and a second belt speed detector (4) are respectively arranged on a feeding belt (6) and a discharging belt (7) of a belt conveyor,
The measuring wheel (9) is arranged on the rotary encoder (10), and the feeding adhesive tape (6) and the discharging adhesive tape (7) are in reliable surface contact with the corresponding measuring wheel (9); wherein the first belt speed detector (3) and the second belt speed detector (4) both comprise a measuring wheel (9) and a rotary encoder (10);
When the feeding adhesive tape (6) and the discharging adhesive tape (7) run, the measuring wheel (9) is driven to rotate, so that the rotary encoder (10) synchronously rotates;
when the rotary encoder (10) rotates, the rotary encoder (10) converts the mechanical quantity of the rotation of the rotary encoder (10) into corresponding electric pulses to be output in digital quantity;
The first belt speed detector (3) and the second belt speed detector (4) obtain the corresponding movement speed of the feeding adhesive belt (6) or the movement speed of the discharging adhesive belt (7) according to the corresponding electric pulse output by the rotary encoder (10) in a digital quantity.
3. The method for detecting clogging of an ore discharge hopper as recited in claim 2, characterized in that,
The corresponding running speed of the feeding adhesive tape (6) or the running speed of the discharging adhesive tape (7) is obtained:
Wherein V represents the running speed of the feeding adhesive tape (6) or the discharging adhesive tape (7), r represents the radius of the measuring wheel (9), and n represents the rotating speed of the measuring wheel (9).
4. The method for detecting blockage of an ore discharging hopper according to claim 1, wherein the volume of the material conveyed by the feeding adhesive tape (6) to the transferring hopper (8) and the volume of the material conveyed by the transferring hopper (8) to the discharging adhesive tape (7) are obtained, and the method comprises the steps of,
Respectively carrying out material detection scanning on a feeding adhesive tape (6) and a discharging adhesive tape (7) of the adhesive tape machine, and correspondingly obtaining material accumulation outlines of the feeding adhesive tape (6) and the discharging adhesive tape (7);
According to the material accumulation outlines of the feeding adhesive tape (6) and the discharging adhesive tape (7) and the running speeds of the feeding adhesive tape (6) and the discharging adhesive tape (7), the material volume of the feeding adhesive tape (6) conveyed to the transfer hopper (8) and the material volume of the transfer hopper (8) conveyed to the discharging adhesive tape (7) are respectively obtained.
5. The method for detecting the blockage of an ore discharging hopper according to claim 4, wherein the corresponding material accumulation profiles of the feeding adhesive tape (6) and the discharging adhesive tape (7) are obtained, comprising,
A first material detector (1) and a second material detector (2) are respectively arranged above the feeding adhesive tape (6) and the discharging adhesive tape (7); wherein, the first material detector (1) and the second material detector (2) are both non-contact two-dimensional laser scanners;
The material detection scanning is carried out on a feeding adhesive tape (6) and a discharging adhesive tape (7) of the adhesive tape machine through the first material detector (1) and the second material detector (2), so that corresponding material stacking contours are respectively obtained and sent to the controller (5);
Wherein the controller (5) is respectively connected with the first material detector (1) and the second material detector (2).
6. The method for detecting clogging of an ore discharge hopper as recited in claim 1, wherein,
When a curved surface micro material element delta S j approaches infinity, the length of the flat top column is as follows:
Wherein Deltax i represents the length of the ith curved surface micro-material strip, V represents the running speed of the feeding adhesive tape or the discharging adhesive tape, deltat i represents one scanning period of the ith curved surface micro-material strip under a two-dimensional laser scanner, r represents the radius of the measuring wheel, and n represents the rotating speed of the measuring wheel;
The width of the flat top column is as follows:
Wherein Δy j represents the width of the jth curved surface micro-material element, θ j represents the deflection angle of the laser beam emitted when the jth curved surface micro-material element is scanned by the two-dimensional laser scanner, and h j represents the distance measured when the jth curved surface micro-material element is scanned by the two-dimensional laser scanner;
The height of the flat top column is as follows:
wherein DeltaZ j represents the height of the j-th curved surface micro material element, and H is the mounting height of the two-dimensional laser scanner.
7. The method for detecting the blockage of the ore discharging hopper according to claim 1, wherein the method for detecting the blockage of the ore discharging hopper is characterized in that whether the ore discharging hopper (8) works normally is judged according to the volume of the material conveyed to the ore discharging hopper (8) by the feeding adhesive tape (6) and the volume of the material conveyed to the ore discharging adhesive tape (7) by the ore discharging hopper (8),
The controller (5) compares the obtained material volume S Feeding in of the feeding adhesive tape (6) conveyed to the transfer hopper (8) with the material volume S Out of of the transfer hopper (8) conveyed to the discharging adhesive tape (7) and judges whether S Feeding in and S Out of are balanced or not:
If S Feeding in and S Out of are balanced, judging that the operation of the transfer hopper (8) is normal;
if S Feeding in and S Out of are unbalanced, the operation of the transfer hopper (8) is judged to be abnormal, and the controller (5) sends out fault alarm information or a shutdown instruction.
8. The system for detecting the blockage of the ore discharging hopper is characterized by comprising a measuring unit, an acquisition unit and a judging unit,
The measuring unit is used for measuring the belt conveyor during working and transporting, and respectively obtaining the running speed of the feeding belt (6) and the running speed of the discharging belt (7);
The acquisition unit is used for respectively acquiring the material volume of the feeding adhesive tape (6) conveyed to the transfer hopper (8) and the material volume of the transfer hopper (8) conveyed to the discharging adhesive tape (7) based on the running speed of the feeding adhesive tape (6) and the running speed of the discharging adhesive tape (7);
The judging unit is used for judging whether the transfer hopper (8) works normally or not according to the volume of the materials conveyed to the transfer hopper (8) by the feeding adhesive tape (6) and the volume of the materials conveyed to the discharging adhesive tape (7) by the transfer hopper (8);
the feeding adhesive tape (6) and the discharging adhesive tape (7) are arranged on the adhesive tape machine, and a transfer hopper (8) is arranged between the feeding adhesive tape (6) and the discharging adhesive tape (7);
The measuring unit comprises a first belt speed detector (3) and a second belt speed detector (4); the first belt speed detector (3) is arranged above a feeding adhesive belt (6) of the adhesive tape machine, and the second belt speed detector (4) is arranged above a discharging adhesive belt (7) of the adhesive tape machine;
the first belt speed detector (3) is used for measuring a feeding adhesive belt (6) of the adhesive belt machine during working and transporting materials, obtaining the running speed of the feeding adhesive belt (6) and sending the running speed to the controller (5);
the second belt speed detector (4) is used for measuring a discharging adhesive belt (7) of the adhesive belt machine during working and transporting materials, obtaining the running speed of the discharging adhesive belt (7) and sending the running speed to the controller (5);
wherein the controller (5) is connected with the first belt speed detector (3) and the second belt speed detector (4) respectively;
the acquisition unit comprises a first material detector (1), a second material detector (2) and a controller (5);
the controller (5) is used for respectively obtaining the material volume of the feeding adhesive tape (6) conveyed to the transfer hopper (8) and the material volume of the transfer hopper (8) conveyed to the discharging adhesive tape (7), and comprises:
the controller (5) regards the received material accumulation profile of the feeding adhesive tape (6) and the material accumulation profile of the discharging adhesive tape (7) as the accumulated material volumes of a plurality of curved micro material strips according to the principle of calculus;
Regarding each curved surface micro-material strip as the accumulation of a plurality of curved surface micro-material elements;
When the curved surface micro material element approaches infinity, the curved surface micro material element is equivalent to a flat top column with the length, width and height of x, y and z respectively;
the controller (5) calculates the value of each flat top column according to the running speeds of the feeding adhesive tape (6) and the discharging adhesive tape (7), and finally obtains the material volume;
the material volume is:
S represents the accumulated material volume of a plurality of curved micro-material strips, namely the material volume of a feeding adhesive tape (6) conveyed to a transfer hopper (8) or the material volume of the transfer hopper (8) conveyed to a discharging adhesive tape (7); l represents the number of curved surface micro-material strips, i represents the serial number of the curved surface micro-material strips, deltaS i represents the volume of the ith curved surface micro-mineral strip, m represents the number of curved surface micro-material elements, j represents the number of curved surface micro-material elements, deltaSj represents the volume of the jth curved surface micro-material elements, deltax i represents the length of the ith curved surface micro-mineral strip; Δy j represents the width of the jth curved surface micro-bin, and Δz j represents the height of the jth curved surface micro-bin.
9. The hopper plugging detection system according to claim 8 wherein,
The controller (5) is respectively connected with the first material detector (1) and the second material detector (2);
the first material detector (1) is used for carrying out material detection scanning on a feeding adhesive tape (6) of the adhesive tape machine, correspondingly obtaining a material stacking contour of the feeding adhesive tape (6) and sending the material stacking contour to the controller (5);
The second material detector (2) is used for carrying out material detection scanning on a discharging adhesive tape (7) of the adhesive tape machine, correspondingly obtaining a material stacking contour of the discharging adhesive tape (7) and sending the material stacking contour to the controller (5);
the controller (5) is used for respectively obtaining the material volume of the material conveyed to the transfer hopper (8) by the feed adhesive tape (6) and the material volume of the material conveyed to the discharge adhesive tape (7) by the transfer hopper (8) according to the material accumulation outlines of the feed adhesive tape (6) and the discharge adhesive tape (7) and the running speeds of the feed adhesive tape (6) and the discharge adhesive tape (7).
10. The hopper plugging detection system according to claim 8 wherein,
The judging unit comprises a controller (5), the controller (5) is used for comparing the calculated material volume S Feeding in of the feeding adhesive tape (6) conveyed to the transfer hopper (8) with the material volume S Out of of the transfer hopper (8) conveyed to the discharging adhesive tape (7), and judging whether S Feeding in and S Out of are balanced or not:
If S Feeding in and S Out of are balanced, judging that the operation of the transfer hopper (8) is normal;
if S Feeding in and S Out of are unbalanced, the operation of the transfer hopper (8) is judged to be abnormal, and the controller (5) sends out fault alarm information or a shutdown instruction.
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