CN113755660B - Mechanized cleaning device for blast furnace burden - Google Patents
Mechanized cleaning device for blast furnace burden Download PDFInfo
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- CN113755660B CN113755660B CN202110869477.3A CN202110869477A CN113755660B CN 113755660 B CN113755660 B CN 113755660B CN 202110869477 A CN202110869477 A CN 202110869477A CN 113755660 B CN113755660 B CN 113755660B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 62
- 238000012937 correction Methods 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
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Abstract
The invention provides a mechanized cleaning device for blast furnace burden, which comprises: the device comprises a controller, an image acquisition unit, a horizontal belt conveyor and a large-inclination-angle belt conveyor, wherein the large-inclination-angle belt conveyor is arranged in a blast furnace, the upper end of the large-inclination-angle belt conveyor exposes out of an air port of the blast furnace, the horizontal belt conveyor is arranged outside the blast furnace along the horizontal direction, the first end of the horizontal belt conveyor is positioned below the upper end of the large-inclination-angle belt conveyor, a discharging chute is arranged at the second end of the horizontal belt conveyor, the image acquisition unit is arranged right above the large-inclination-angle belt conveyor to acquire image information of the large-inclination-angle belt conveyor, and the controller is respectively electrically connected with the image acquisition unit, the horizontal belt conveyor and the large-inclination-angle belt conveyor. The furnace charge cleaning device has the advantages that the furnace charge is conveyed when the furnace charge is cleaned through the arranged horizontal belt conveyor and the large-inclination-angle belt conveyor, and meanwhile, the horizontal belt conveyor and the large-inclination-angle belt conveyor are controlled through the arranged controller, so that the control efficiency of the belt conveyors can be effectively improved.
Description
Technical Field
The invention relates to the technical field of industrial furnace maintenance, in particular to a mechanized cleaning device for blast furnace burden.
Background
At present, a common industrial furnace is a cylindrical steel furnace shell, and blast furnace smelting is a series of processes including adding iron-making raw materials from the top of the furnace, and then performing waste heat, iron oxide decomposition and reduction, coke combustion, slagging and the like. The refractory material in the blast furnace hearth is continuously eroded under the condition of improving the iron-making strength, the service life of the blast furnace is seriously influenced, and the refractory material is a major hidden trouble in safety production, so that when the blast furnace reaches a certain furnace age or needs to be maintained, the blast furnace needs to be shut down, and furnace burden in the blast furnace needs to be cleaned, so that the lining in the blast furnace is met. Then, in the prior art, when furnace burden cleaning is carried out, a conveyor belt of the cleaning equipment is always in a rotating state and cannot be effectively adjusted, so that when the amount of furnace burden to be conveyed is small, timely adjustment cannot be carried out, low-efficiency operation of the conveyor belt is caused, and resources are greatly wasted.
Disclosure of Invention
In view of this, the invention provides a mechanized cleaning device for blast furnace burden, which aims to solve the problem of energy waste caused by how to effectively adjust the rotation speed of a belt conveyor when cleaning the blast furnace burden.
In one aspect, the present invention provides a mechanized cleaning device for blast furnace burden, comprising: the device comprises a controller, an image acquisition unit, a horizontal belt conveyor and a large-inclination-angle belt conveyor, wherein the large-inclination-angle belt conveyor is arranged in the blast furnace, the upper end of the large-inclination-angle belt conveyor is exposed out of an air port of the blast furnace, the horizontal belt conveyor is arranged on the outer side of the blast furnace along the horizontal direction, the first end of the horizontal belt conveyor is positioned below the upper end of the large-inclination-angle belt conveyor, the second end of the horizontal belt conveyor is provided with a blanking chute, the image acquisition unit is arranged right above the large-inclination-angle belt conveyor to acquire image information of the large-inclination-angle belt conveyor, and the controller is electrically connected with the image acquisition unit, the horizontal belt conveyor and the large-inclination-angle belt conveyor respectively; wherein,
the controller comprises a processing module, the image acquisition sheet transmits image information of the large-inclination-angle belt conveyor acquired in real time to the processing module, and the processing module is used for extracting an image frame from the image information after receiving the image information of the large-inclination-angle belt conveyor, marking an image of a transportation operation surface of the large-inclination-angle belt conveyor in the image frame, extracting the image of the transportation operation surface, and performing gray processing to acquire a real-time average gray value deltaG of the image of the transportation operation surface in real time;
the processing module is further used for acquiring an initial average gray value G0 of a transportation operation surface of the large-inclination-angle belt conveyor when no material is placed on the large-inclination-angle belt conveyor;
the processing module is further used for setting the rotating speed of the large-inclination-angle belt conveyor according to the real-time average gray value delta G and the initial average gray value G0.
Further, the controller is preferably a control terminal, which may be a computer, an industrial personal computer, or other devices capable of performing data processing and controlling each unit.
Further, the processing module is also used for presetting a first preset large-inclination-angle belt conveyor rotating speed S1, a second preset large-inclination-angle belt conveyor rotating speed S2, a third preset large-inclination-angle belt conveyor rotating speed S3 and a fourth preset large-inclination-angle belt conveyor rotating speed S4, wherein S1 is more than S2 and more than S3 is more than S4; the processing module is further used for presetting a first preset average gray value G1, a second preset average gray value G2, a third preset average gray value G3 and a fourth preset average gray value G4, wherein G4 is more than or equal to 0 and more than G3 and more than G2 and more than G1 and less than or equal to 255, and G1, G2, G3 and G4 are sequentially arranged in an equal difference mode;
the processing module is used for determining whether to enable the large-inclination-angle belt conveyor to operate or not according to a comparison result between the real-time average gray value delta G and the initial average gray value G0:
when the delta G is larger than or equal to G0, stopping the large-inclination-angle belt conveyor;
when the delta G is smaller than G0, enabling the large-inclination-angle belt conveyor to start to operate, and setting the rotating speed of the large-inclination-angle belt conveyor according to the relation between the real-time average gray value delta G and each preset average gray value:
when delta G is larger than or equal to G1 and smaller than G0, selecting the rotating speed S1 of the first preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G2 is larger than or equal to G1 and delta G is smaller than or equal to G1, selecting the rotating speed S2 of the second preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G3 is larger than or equal to G2 and G is smaller than or equal to G2, selecting the rotating speed S3 of the third preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
and when G4 is more than or equal to G3 and G < G3, selecting the rotating speed S4 of the fourth preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor.
Further, the processing module is configured to set the rotation speed of the horizontal belt conveyor by i =1,2,3,4 after the rotation speed of the large-inclination belt conveyor is set to the i-th preset large-inclination belt conveyor rotation speed Si;
the processing module is further used for setting a first preset adjustment coefficient a1, a second preset adjustment coefficient a2, a third preset adjustment coefficient a3 and a fourth preset adjustment coefficient a4, wherein a is more than 1 and less than a2 and less than a3 and less than a4 and less than 1.5; the processing module is further used for setting a first preset inclination angle J1, a second preset inclination angle J2, a third preset inclination angle J3 and a fourth preset inclination angle J4, wherein J1 is more than J2 and less than J3 and less than J4; the processing module is further used for acquiring an initial inclination angle J0 of the large-inclination-angle belt conveyor after the large-inclination-angle belt conveyor is installed to a preset position;
the processing module is further configured to set a rotation speed of the horizontal belt conveyor according to a relationship between the initial inclination angle J0 and each preset inclination angle:
when J0 is less than J1, selecting the first preset adjustment coefficient a1 to adjust Si, and taking the adjusted rotating speed Si a1 as the rotating speed of the horizontal belt conveyor;
when J1 is not less than J0 and less than J2, selecting the second preset adjustment coefficient a2 to adjust Si, and taking the adjusted rotating speed Si a2 as the rotating speed of the horizontal belt conveyor;
when J2 is not less than J0 and less than J3, selecting the second preset adjustment coefficient a3 to adjust Si, and taking the adjusted rotating speed Si a3 as the rotating speed of the horizontal belt conveyor;
and when J3 is not less than J0 and less than J4, selecting the fourth preset adjustment coefficient a4 to adjust Si, and taking the adjusted rotating speed Si a4 as the rotating speed of the horizontal belt conveyor.
Further, the processing module is further configured to set a first preset endpoint gray value difference value C1, a second preset endpoint gray value difference value C2, a third preset endpoint gray value difference value C3, and a fourth preset endpoint gray value difference value C4, where C1 is greater than C2 and greater than C3 and greater than C4; the processing module is further used for setting a first preset speed correction coefficient d1, a second preset speed correction coefficient d2, a third preset speed correction coefficient d3 and a fourth preset speed correction coefficient d4, wherein d1 is larger than d1 and larger than d2 and larger than d3 and larger than d4 and smaller than 1.5;
the processing module is further used for obtaining an image of a transportation operation surface of the large-inclination-angle belt conveyor at the nth moment after the large-inclination-angle belt conveyor starts to operate and the rotation speed of the large-inclination-angle belt conveyor is set, wherein n is any positive integer, a rectangular image is cut out from the image of the transportation operation surface at the nth moment, a symmetry axis along the operation direction of the large-inclination-angle belt conveyor is determined in the rectangular image, the gray values of two end points of the symmetry axis are extracted, the difference Wn of the gray values of the two end points at the nth moment is obtained, and the difference Wn +1 of the gray values of the two end points at the n +1 th moment is obtained in the same manner;
the processing module is further configured to select a correction coefficient according to a relationship between a difference value Wn between the gray-scale values of the two end points at the nth time and a difference value Wn +1 between the gray-scale values of the two end points at the n +1 th time and the gray-scale value difference values of the preset end points, to correct the rotation speed Si of the selected ith preset large-inclination-angle belt conveyor, and to use the corrected rotation speed as the rotation speed of the large-inclination-angle belt conveyor:
when 0 < (Wn + 1) -Wn is less than or equal to C1, selecting the first preset speed correction coefficient d1 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si x d1 as the rotating speed of the large-inclination-angle belt conveyor;
when C1 is smaller than (Wn + 1) -Wn is smaller than or equal to C2, selecting the second preset speed correction coefficient d2 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si d2 as the rotating speed of the large-inclination-angle belt conveyor;
when C2 is smaller than (Wn + 1) -Wn is smaller than or equal to C3, selecting the third preset speed correction coefficient d3 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si d2 as the rotating speed of the large-inclination-angle belt conveyor;
and when C3 < (Wn + 1) -Wn is less than or equal to C4, selecting the fourth preset speed correction coefficient d4 to correct the rotation speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotation speed Si d2 as the rotation speed of the large-inclination-angle belt conveyor.
Furthermore, a support is arranged right above the large-inclination-angle belt conveyor, and the image acquisition unit is arranged on the support.
Further, the image acquisition unit comprises a camera, the camera is fixed on the support, and the camera faces to the upper side face of the belt of the large-inclination-angle belt conveyor. The camera is electrically connected with the controller.
Compared with the prior art, the furnace charge cleaning device has the advantages that the furnace charge is conveyed when the furnace charge is cleaned through the arranged horizontal belt conveyor and the large-inclination-angle belt conveyor, and meanwhile, the horizontal belt conveyor and the large-inclination-angle belt conveyor are controlled through the arranged controller, so that the control efficiency of the belt conveyors can be effectively improved.
Furthermore, the image acquisition unit connected with the controller is arranged, the image information of the operation surface of the large-inclination-angle belt conveyor is acquired through the image acquisition unit, the processing module in the controller extracts image frames from the image information, the rotating speed of the large-inclination-angle belt conveyor is set according to the acquired real-time average gray value delta G and the acquired initial average gray value G0, and the amount of the furnace charge on the operation surface of the large-inclination-angle belt conveyor can be reflected through the acquired gray value, so that the rotating speed of the belt conveyor can be timely adjusted according to the furnace charge amount, the rotating speed of the belt conveyor can be accurately and efficiently adjusted and controlled, the invalid operation of the belt conveyor can be avoided, and the waste of energy is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a mechanized cleaning device for blast furnace burden provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the present embodiment provides a mechanized cleaning device for blast furnace burden, including: controller, image acquisition unit, horizontal belt feeder and big inclination belt feeder, big inclination belt feeder sets up in the blast furnace, and its upper end exposes the wind gap of blast furnace, horizontal belt feeder set up along the horizontal direction the outside of blast furnace, just the first end of horizontal belt feeder is located the below of big inclination belt feeder upper end, the second end of horizontal belt feeder is provided with a blanking chute, the image acquisition unit sets up directly over big inclination belt feeder, in order to gather the image information of big inclination belt feeder, the controller respectively with image acquisition unit, horizontal belt feeder and big inclination belt feeder electricity are connected.
The furnace burden cleaning device has the advantages that furnace burden is conveyed when furnace burden cleaning is carried out through the arranged horizontal belt conveyor and the arranged large-inclination-angle belt conveyor, meanwhile, the horizontal belt conveyor and the large-inclination-angle belt conveyor are controlled through the arranged controller, and the control efficiency of the belt conveyors can be effectively improved.
Specifically, the controller comprises a processing module, the image acquisition unit transmits image information of the large-inclination-angle belt conveyor acquired in real time to the processing module, and the processing module is used for extracting an image frame from the image information after receiving the image information of the large-inclination-angle belt conveyor, marking an image of a transportation operation surface of the large-inclination-angle belt conveyor in the image frame, extracting the image of the transportation operation surface, and performing gray processing to acquire a real-time average gray value deltaG of the image of the transportation operation surface in real time;
the processing module is further used for acquiring an initial average gray value G0 of a transportation operation surface of the large-inclination-angle belt conveyor when no material is placed on the large-inclination-angle belt conveyor;
the processing module is further used for setting the rotating speed of the large-inclination-angle belt conveyor according to the real-time average gray value delta G and the initial average gray value G0.
It can be seen that, in the embodiment, the image acquisition unit connected with the controller is further arranged, the image information of the operation surface of the large-inclination-angle belt conveyor is acquired through the image acquisition unit, the processing module in the controller extracts image frames from the image information, the rotating speed of the large-inclination-angle belt conveyor is set according to the acquired real-time average gray value delta G and the initial average gray value G0, and the amount of the furnace charge on the operation surface of the large-inclination-angle belt conveyor can be reflected through the acquired gray value, so that the rotating speed of the belt conveyor can be timely adjusted according to the furnace charge amount, the rotating speed of the belt conveyor can be accurately and efficiently adjusted and controlled, the invalid operation of the belt conveyor can be avoided, and the waste of energy can be reduced.
It can be understood that the operation surface of the large-inclination-angle belt conveyor is preferably a light-color surface layer, the furnace burden is a dark-color slag charge, and the quantity of the furnace burden on the operation surface of the large-inclination-angle belt conveyor can be accurately reflected according to the image of the furnace burden collected by the image collecting unit and the gray value of the image.
Preferably, the mechanical blast furnace charge cleaning device is used for cleaning dark-color charges.
Specifically, in the specific implementation of the embodiment, the small excavator is hoisted into the furnace from the furnace top inspection manhole, the large-inclination-angle belt conveyor is specially made according to the size of the furnace volume and the caliber of the blast furnace tuyere, and the main structure of the large-inclination-angle belt conveyor comprises a receiving hopper, a scraper belt, a roller, a motor drive, a bracket and the like; the large-inclination-angle belt conveyor is temporarily fixed through the steel wire, and can be driven by a winch on the platform at the top of the furnace. When furnace burden in the furnace is cleaned, the belt conveyor can be adjusted up and down to meet the normal discharging speed of the excavator; the horizontal belt conveyor receives furnace burden output by the large-inclination-angle belt conveyor, then directly conveys the furnace burden to the discharging chute, and the discharging chute is conveyed to a designated position and is transported by a loader.
Specifically, the controller is preferably a control terminal, which may be a device such as a computer or an industrial personal computer capable of performing data processing and controlling each unit.
Specifically, the processing module is further used for presetting a first preset large-inclination-angle belt conveyor rotating speed S1, a second preset large-inclination-angle belt conveyor rotating speed S2, a third preset large-inclination-angle belt conveyor rotating speed S3 and a fourth preset large-inclination-angle belt conveyor rotating speed S4, wherein S1 is more than S2 and more than S3 is more than S4; the processing module is also used for presetting a first preset average gray value G1, a second preset average gray value G2, a third preset average gray value G3 and a fourth preset average gray value G4, G1, G2, G3 and G4 are sequentially arranged in an equal difference mode, G4 is more than 0 and less than G3 and less than G2 and is more than G1 and less than G0 and less than or equal to 255;
the processing module is used for determining whether to enable the large-inclination-angle belt conveyor to operate or not according to a comparison result between the real-time average gray value delta G and the initial average gray value G0:
when the delta G is larger than or equal to G0, stopping the large-inclination-angle belt conveyor;
when the delta G is less than G0, the large-inclination-angle belt conveyor starts to operate, and the rotating speed of the large-inclination-angle belt conveyor is set according to the relation between the real-time average gray value delta G and each preset average gray value:
when delta G is larger than or equal to G1 and smaller than G0, selecting the rotating speed S1 of the first preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G2 is larger than or equal to G1 and delta G is smaller than or equal to G1, selecting the rotating speed S2 of the second preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G3 is larger than or equal to G2 and G is smaller than or equal to G2, selecting the rotating speed S3 of the third preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
and when G4 is more than or equal to Δ G and less than G3, selecting the rotating speed S4 of the fourth preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor.
Specifically, the processing module is used for setting the rotating speed of the horizontal belt conveyor by i =1,2,3,4 after the rotating speed of the large-inclination-angle belt conveyor is set to the i-th preset large-inclination-angle belt conveyor rotating speed Si;
the processing module is also used for setting a first preset adjustment coefficient a1, a second preset adjustment coefficient a2, a third preset adjustment coefficient a3 and a fourth preset adjustment coefficient a4, wherein a is more than 1 and less than a2 and less than a3 and less than a4 and less than 1.5; the processing module is further used for setting a first preset inclination angle J1, a second preset inclination angle J2, a third preset inclination angle J3 and a fourth preset inclination angle J4, wherein J1 is more than J2 and less than J3 and less than J4; the processing module is further used for acquiring an initial inclination angle J0 of the large-inclination-angle belt conveyor after the large-inclination-angle belt conveyor is installed to a preset position;
the processing module is further used for setting the rotating speed of the horizontal belt conveyor according to the relation between the initial inclination angle J0 and each preset inclination angle:
when J0 is less than J1, selecting the first preset adjustment coefficient a1 to adjust Si, and taking the adjusted rotating speed Si a1 as the rotating speed of the horizontal belt conveyor;
when J1 is not less than J0 and less than J2, selecting the second preset adjustment coefficient a2 to adjust Si, and taking the adjusted rotating speed Si a2 as the rotating speed of the horizontal belt conveyor;
when J2 is not less than J0 and less than J3, selecting the second preset adjustment coefficient a3 to adjust Si, and taking the adjusted rotating speed Si a3 as the rotating speed of the horizontal belt conveyor;
and when J3 is not less than J0 and less than J4, selecting the fourth preset adjustment coefficient a4 to adjust Si, and taking the adjusted rotating speed Si a4 as the rotating speed of the horizontal belt conveyor.
Specifically, the processing module is further configured to set a first preset endpoint gray-scale value difference C1, a second preset endpoint gray-scale value difference C2, a third preset endpoint gray-scale value difference C3, and a fourth preset endpoint gray-scale value difference C4, where C1 is greater than C2 and greater than C3 and greater than C4; the processing module is further used for setting a first preset speed correction coefficient d1, a second preset speed correction coefficient d2, a third preset speed correction coefficient d3 and a fourth preset speed correction coefficient d4, wherein d1 is larger than d1 and larger than d2 and larger than d3 and larger than d4 and smaller than 1.5;
the processing module is further used for obtaining an image of a transportation operation surface of the large-inclination-angle belt conveyor at the nth moment after the large-inclination-angle belt conveyor starts to operate and the rotation speed of the large-inclination-angle belt conveyor is set, wherein n is any positive integer, a rectangular image is cut out from the image of the transportation operation surface at the nth moment, a symmetry axis along the operation direction of the large-inclination-angle belt conveyor is determined in the rectangular image, the gray values of two end points of the symmetry axis are extracted, the difference Wn of the gray values of the two end points at the nth moment is obtained, and the difference Wn +1 of the gray values of the two end points at the n +1 th moment is obtained in the same manner;
the processing module is further configured to select a correction coefficient according to a relationship between a difference value Wn between the gray-scale values of the two end points at the nth time and a difference value Wn +1 between the gray-scale values of the two end points at the n +1 th time and the gray-scale value difference values of the preset end points, to correct the rotation speed Si of the selected ith preset large-inclination-angle belt conveyor, and to use the corrected rotation speed as the rotation speed of the large-inclination-angle belt conveyor:
when 0 < (Wn + 1) -Wn is less than or equal to C1, selecting the first preset speed correction coefficient d1 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si x d1 as the rotating speed of the large-inclination-angle belt conveyor;
when C1 is smaller than (Wn + 1) -Wn is smaller than or equal to C2, selecting the second preset speed correction coefficient d2 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si d2 as the rotating speed of the large-inclination-angle belt conveyor;
when C2 is smaller than (Wn + 1) -Wn is smaller than or equal to C3, selecting the third preset speed correction coefficient d3 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si d2 as the rotating speed of the large-inclination-angle belt conveyor;
when C3 < (Wn + 1) -Wn is less than or equal to C4, selecting the fourth preset speed correction coefficient d4 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si x d2 as the rotating speed of the large-inclination-angle belt conveyor.
Specifically, a support is arranged right above the large-inclination-angle belt conveyor, and the image acquisition unit is arranged on the support.
Particularly, the image acquisition unit includes the camera, the camera is fixed on the support, just the camera orientation the side setting of going up of belt of big inclination belt feeder. The camera is electrically connected with the controller.
It can be seen that, the above-mentioned embodiment can be timely carry out furnace charge transmission according to the size of the furnace charge transmitted by the belt conveyor through the intelligent control of the belt conveyor, and then the control efficiency of the belt conveyor can be effectively improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (5)
1. The utility model provides a mechanized cleaning device of blast furnace charge, its characterized in that includes: the device comprises a controller, an image acquisition unit, a horizontal belt conveyor and a large-inclination-angle belt conveyor, wherein the large-inclination-angle belt conveyor is arranged in the blast furnace, the upper end of the large-inclination-angle belt conveyor is exposed out of an air port of the blast furnace, the horizontal belt conveyor is arranged on the outer side of the blast furnace along the horizontal direction, the first end of the horizontal belt conveyor is positioned below the upper end of the large-inclination-angle belt conveyor, the second end of the horizontal belt conveyor is provided with a blanking chute, the image acquisition unit is arranged right above the large-inclination-angle belt conveyor to acquire image information of the large-inclination-angle belt conveyor, and the controller is electrically connected with the image acquisition unit, the horizontal belt conveyor and the large-inclination-angle belt conveyor respectively; wherein,
the controller comprises a processing module, the image acquisition sheet transmits image information of the large-inclination-angle belt conveyor acquired in real time to the processing module, and the processing module is used for extracting an image frame from the image information after receiving the image information of the large-inclination-angle belt conveyor, marking an image of a transportation operation surface of the large-inclination-angle belt conveyor in the image frame, extracting the image of the transportation operation surface, and performing gray processing to acquire a real-time average gray value deltaG of the image of the transportation operation surface in real time;
the processing module is further used for acquiring an initial average gray value G0 of a transportation operation surface of the large-inclination-angle belt conveyor when no material is placed on the large-inclination-angle belt conveyor;
the processing module is further used for setting the rotating speed of the large-inclination-angle belt conveyor according to the real-time average gray value delta G and the initial average gray value G0;
the processing module is also used for presetting a first preset large-inclination-angle belt conveyor rotating speed S1, a second preset large-inclination-angle belt conveyor rotating speed S2, a third preset large-inclination-angle belt conveyor rotating speed S3 and a fourth preset large-inclination-angle belt conveyor rotating speed S4, wherein S1 is larger than S2 and smaller than S3 and smaller than S4; the processing module is further used for presetting a first preset average gray value G1, a second preset average gray value G2, a third preset average gray value G3 and a fourth preset average gray value G4, wherein G4 is more than or equal to 0 and more than G3 and more than G2 and more than G1 and less than or equal to 255, and G1, G2, G3 and G4 are sequentially arranged in an equal difference mode;
the processing module is used for determining whether to enable the large-inclination-angle belt conveyor to operate or not according to a comparison result between the real-time average gray value delta G and the initial average gray value G0:
when the delta G is larger than or equal to G0, stopping the large-inclination-angle belt conveyor;
when the delta G is smaller than G0, enabling the large-inclination-angle belt conveyor to start to operate, and setting the rotating speed of the large-inclination-angle belt conveyor according to the relation between the real-time average gray value delta G and each preset average gray value;
when delta G is larger than or equal to G1 and smaller than G0, selecting the rotating speed S1 of the first preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G2 is larger than or equal to G1 and delta G is smaller than or equal to G1, selecting the rotating speed S2 of the second preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G3 is larger than or equal to delta G and smaller than G2, selecting the rotating speed S3 of the third preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
when G4 is larger than or equal to G < G3, selecting the rotating speed S4 of the fourth preset large-inclination-angle belt conveyor as the rotating speed of the large-inclination-angle belt conveyor;
the operation surface of the large-inclination-angle belt conveyor is a light-color surface layer, the furnace burden is deep-color slag, and the quantity of the furnace burden on the operation surface of the large-inclination-angle belt conveyor can be accurately reflected according to the gray value of the image and the furnace burden image acquired by the image acquisition unit;
the small excavator is hung into the furnace from a manhole at the top of the furnace, the large-inclination-angle belt conveyor is specially made according to the size of the furnace volume and the caliber of a blast furnace tuyere, and the main structure of the large-inclination-angle belt conveyor comprises a receiving hopper, a scraper belt, a roller, a motor drive and a bracket; the large-inclination-angle belt conveyor is temporarily fixed through a steel wire and can be driven by a winch of the furnace top platform; when furnace burden in a furnace is cleaned, the belt conveyor can be adjusted up and down to meet the normal discharge rate of an excavator; the horizontal belt conveyor receives furnace burden output by the large-inclination-angle belt conveyor, then directly conveys the furnace burden to the discharging chute, and the discharging chute is conveyed to a designated position and is transported by a loader.
2. The mechanized cleaning device for blast furnace burden as claimed in claim 1, wherein the processing module is configured to set the rotation speed of the horizontal belt conveyor in a manner of i =1,2,3,4 after the rotation speed of the large-inclination belt conveyor is set to the i-th preset large-inclination belt conveyor rotation speed Si;
the processing module is further used for setting a first preset adjustment coefficient a1, a second preset adjustment coefficient a2, a third preset adjustment coefficient a3 and a fourth preset adjustment coefficient a4, wherein a1 is larger than a1 and larger than a2 and larger than a3 and larger than a4 and smaller than 1.5;
the processing module is further used for setting a first preset inclination angle J1, a second preset inclination angle J2, a third preset inclination angle J3 and a fourth preset inclination angle J4, wherein J1 is more than J2 and less than J3 and less than J4; the processing module is further used for acquiring an initial inclination angle J0 of the large-inclination-angle belt conveyor after the large-inclination-angle belt conveyor is installed to a preset position;
the processing module is further used for setting the rotating speed of the horizontal belt conveyor according to the relation between the initial inclination angle J0 and each preset inclination angle:
when J0 is smaller than J1, selecting the first preset adjustment coefficient a1 to adjust Si, and taking the adjusted rotating speed Si x a1 as the rotating speed of the horizontal belt conveyor;
when J1 is not less than J0 and less than J2, selecting the second preset adjustment coefficient a2 to adjust Si, and taking the adjusted rotating speed Si a2 as the rotating speed of the horizontal belt conveyor;
when J2 is not less than J0 and less than J3, selecting the second preset adjustment coefficient a3 to adjust Si, and taking the adjusted rotating speed Si a3 as the rotating speed of the horizontal belt conveyor;
and when J3 is not less than J0 and less than J4, selecting the fourth preset adjustment coefficient a4 to adjust Si, and taking the adjusted rotating speed Si a4 as the rotating speed of the horizontal belt conveyor.
3. The mechanized cleaning device for blast furnace burden according to claim 1, wherein the processing module is further configured to set a first preset endpoint gray value difference value C1, a second preset endpoint gray value difference value C2, a third preset endpoint gray value difference value C3, and a fourth preset endpoint gray value difference value C4, where C1 < C2 < C3 < C4; the processing module is further used for setting a first preset speed correction coefficient d1, a second preset speed correction coefficient d2, a third preset speed correction coefficient d3 and a fourth preset speed correction coefficient d4, wherein d1 is larger than 1, d2 is larger than d3, d4 is larger than 1.5;
the processing module is further used for obtaining an image of a transportation operation surface of the large-inclination-angle belt conveyor at the nth moment after the large-inclination-angle belt conveyor starts to operate and the rotation speed of the large-inclination-angle belt conveyor is set, wherein n is any positive integer, a rectangular image is cut out from the image of the transportation operation surface at the nth moment, a symmetry axis along the operation direction of the large-inclination-angle belt conveyor is determined in the rectangular image, the gray values of two end points of the symmetry axis are extracted, the difference Wn of the gray values of the two end points at the nth moment is obtained, and the difference Wn +1 of the gray values of the two end points at the n +1 th moment is obtained in the same manner;
the processing module is further configured to select a correction coefficient according to a relationship between a difference value Wn between the gray-scale values of the two end points at the nth time and a difference value Wn +1 between the gray-scale values of the two end points at the n +1 th time and the gray-scale value difference values of the preset end points, so as to correct the rotation speed Si of the selected ith preset large-inclination-angle belt conveyor, and use the corrected rotation speed as the rotation speed of the large-inclination-angle belt conveyor:
when 0 < (Wn + 1) -Wn is less than or equal to C1, selecting the first preset speed correction coefficient d1 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si x d1 as the rotating speed of the large-inclination-angle belt conveyor;
when C1 is smaller than (Wn + 1) -Wn is smaller than or equal to C2, selecting the second preset speed correction coefficient d2 to correct the rotation speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotation speed Si d2 as the rotation speed of the large-inclination-angle belt conveyor;
when C2 is smaller than (Wn + 1) -Wn is smaller than or equal to C3, selecting the third preset speed correction coefficient d3 to correct the rotating speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotating speed Si d2 as the rotating speed of the large-inclination-angle belt conveyor;
and when C3 < (Wn + 1) -Wn is less than or equal to C4, selecting the fourth preset speed correction coefficient d4 to correct the rotation speed Si of the ith preset large-inclination-angle belt conveyor, and taking the corrected rotation speed Si d2 as the rotation speed of the large-inclination-angle belt conveyor.
4. The mechanical blast furnace charge cleaning device of claim 1, wherein a support is arranged right above the large-inclination-angle belt conveyor, and the image acquisition unit is arranged on the support.
5. The mechanized cleaning device for blast furnace burden as claimed in claim 4, wherein the image acquisition unit comprises a camera fixed on the bracket and arranged towards the upper side of the belt of the large-inclination belt conveyor.
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