CN103920598A - Conversion method device for foam flotation camera gray image and analog quantity - Google Patents
Conversion method device for foam flotation camera gray image and analog quantity Download PDFInfo
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- CN103920598A CN103920598A CN201310013778.1A CN201310013778A CN103920598A CN 103920598 A CN103920598 A CN 103920598A CN 201310013778 A CN201310013778 A CN 201310013778A CN 103920598 A CN103920598 A CN 103920598A
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Abstract
The invention relates to a conversion method device for a foam flotation camera gray image and analog quantity. A video camera with a white constant light source is mounted at the proper position of a flotation machine, a camera shooting signal output cable of the video camera is connected with an input end of a computer receiving image signals, a piece of plate glass is fixedly fitted to a computer display screen, a frame is embedded in the periphery of the plate glass, a light-guide fiber is fixedly mounted on the periphery in the frame, the end face is closely arranged at one end of the light-guide fiber and parallel to the end face of the periphery of the plate glass, the light-guide fiber receives light rays refracted by display screen images through the end face of the plate glass, the strength of the refracted light rays is changed through light dependent resistors, a changed resistance valve is inputted to a current loop amplifier, 4-20mA direct current standard signals are outputted, and flotation is automatically controlled by setting node parameters of the 4-20mA direct current standard signals.
Description
Technical field:
The invention belongs to Mineral Processing Industry, in floatation process process, replace artificial observation, the shading value Monitoring and Controlling of application shooting gray level image is assessed the degree that mix with water and medicament in selected ore deposit.
Background technology:
Utilizing the physicochemical properties difference of mineral surfaces to sort the process of mineral grain, be once called as floating separation, is most widely used beneficiation method.Nearly all ore is available flotation sorting all.As sulfide minerals such as gold mine, silver ore, galena, zincblende, chalcopyrite, vitreous copper, molybdenite, pentlandites, the sorting of the oxide minerals such as malachite, cerussite, smithsonite, smithsonite and bloodstone, cassiterite, wolframite, ilmenite, beryl, spodumene and rare-earth mineral, uranium ore.Sorting of the solubility salt mineral such as the nonmetal salt mineral such as the nonmetallic minerals such as graphite, Sulfur, diamond, quartz, mica, feldspar and silicate mineral and fluorite, apatite, barite and sylvite, rock salt.
The theoretical foundation of various floatation process is substantially identical, and ore particle, because of the hydrophobic property on self surface or hydrophobic (close gas or the oil) characteristic obtaining after floating agent effect, can be assembled at liquid-gas or water-oily interface.At present most widely used is froth flotation method.Ore makes various mineral disaggregations become monomer particle through broken with grinding, and makes granular size meet floatation process requirement.Ore pulp after ore grinding adds various floating agents and stirs mediation, makes and mineral grain effect, to expand the intergranular floatability difference of different minerals.The ore pulp mixing up is sent into flotation cell, stirs inflation.Ore particle in ore pulp contacts, collides with bubble, and the ore particle that floatability is good optionally adheres to bubble and is carried to rise becomes the mineralized froth layer of gas-liquid-solid three phase compositions, through mechanical scraping or overflow from mineral slurry level, then dewaters, is dried to concentrate product.The mineral grain such as floaty gangue, does not discharge as product from failing from flotation cell bottom with ore pulp.
In floatation process process, modern technologies, by being arranged on video camera and the certain illuminance stabilized light source above flotation device, light source is fixedly radiated at, in floatation process in the certain area of foam generated, the foam generating in camera alignment light source irradiation area, the picture signal obtaining generates by computer and shows by display;
Flotation make a video recording shown image be by: black is 0, and white is 1, and video camera is divided into 256 values image; That is, black is many, and image is just dark; Black has lacked, and image is just bright; For example: get two limiting values: 0 occupies 256 values in image; So, 256*0=0=gray scale; Image is black completely; If 1 occupies 255 values, so, 255*1=255=gray scale; So, image is white completely; If, 0 occupies 128 values in image, 1 occupies 128 values in image, so, 0*128+1*128=128=gray scale, the big or small degree that is gray scale reflects, in floatation process the size of foam, foam surface carrying concentrate number, foam number, the formation speed of foam is, firmness degree of foam etc.; In floatation process, the pattern of the various combinations of froth images is all relevant with these 265 values of gray scale.
The memory of computer is pre-stored in floatation process, has been proved the best froth images of Yield and quality;
Approach best image; The poorest image; The picture signal obtaining by video camera in actual production operating process is shown by computer display, in this process, computer is constantly comparing the image of on-the-spot image and storage to approach the best froth images of Yield and quality, notify operator, technique is continued; If the image being compared is the poor image of poor quality or output, notify timely operator, revise the content (as: adding proportion of water, medicament, breeze) of each material in technique at this moment; Operator makes technique adjustment in time, recovers normally carrying out of technological process.
Light source-shooting-Computing-storage comparison-displaying scene image-comparative result-notify operator-operator to receive instruction modification technique; These processes, although remember to differentiate the quality of floatation process and the quality of output than traditional artificial observation by experience, rule of thumb revising the various material parameters increases of technique will come soon with accurate with minimizing again, but must, through being the manual operation composition that has half, not reach the higher level that automation is controlled.
So, how the leader of flotation industry and operator think, in observation Floating Production Process, have a kind of can realization to observe, again can outputting standard signal, control the standard feeding coal of various materials, the appliance arrangement of realizing the automation control of floatation process is born.
Summary of the invention:
The object of this invention is to provide a kind of conversion method device that a kind of froth flotation shooting gray level image and analog quantity have been installed on the display screen of image pickup signal receiving computer, to overcome above-mentioned deficiency.
The object of the invention is to be realized by following technical scheme:
1, the conversion method device of a kind of froth flotation shooting gray level image and analog quantity, it is characterized in that: flotation device equipment, material in equipment and foam, in the suitable position of flotation device equipment, install one with the video camera of the permanent light source of adularescent, the image pickup signal output cable of video camera, be connected to the computer input end that receives signal, pasting computer display, fixed one flat plate glass, the periphery end face of plate glass, inlay plate glass periphery and inlay frame, in frame, periphery has fixedly mounted one end close-packed arrays and the optical fiber that end face is parallel to the periphery end face of plate glass, optical fiber, part except two-end part, neat sealing is fixed in frame groove, along frame, the optical fiber of periphery forms a bundle, the optical fiber interface that this bundle is processed at frame, all optic fiber end faces of fibre-optic bundle, repair into and radially perpendicular consistent end face,
By plate glass surrounding end face, the light source that receiving computer display image light reflects; The light source of plate glass surrounding end face, the optic fiber end face that is parallel to again the periphery end face of plate glass receives, and concentrates in together and is fixed on frame institute processing interface place formation fibre-optic bundle, as output light source; By inlaying processing interface and the interface connector of frame, be connected;
Interface connector, inner conical light source receiver and the fibre-optic bundle of being fixed, diameter is identical; Conical light source receiver and fibre-optic bundle, be separately fixed among interface connector and interface, by connector and interface, by conical light source receiver and fibre-optic bundle, links together;
The conical light source receiver that interface connector is fixed, conical light source receiver connects optical fiber wire, and optical fiber wire connects conical light source follower, and taper light source follower and photo resistance have formed optical-electrical converter;
The circular cone tail end of conical light source receiver, be fixedly connected with one end of optical fiber wire, the other end of optical fiber wire is fixedly connected with the circular cone tail end of conical light source follower, an axial photo resistance is close in the large end of circular cone of conical light source follower, conical light source follower and photo resistance and be connected, part optical fiber wire and the radial seal of photo resistance part are fixed in photoelectricity seal casinghousing, two photo resistance pin of drawing in photoelectricity seal casinghousing, be connected with other three resistors, formed a Gordon Adams Bridge, two nodes of Gordon Adams Bridge respectively connect constant-current source positive and negative terminal, by constant-current source as constant current drive, Hui Shi steps on another two the height potential nodes of bridge, respectively be connected to the input of current loop amplifier, mate the transmitter that forms the output of 4-20mA direct current standard signal with other electron component.Input, mate with other electron component and form 4-20mA direct current, the transmitter of standard signal output, institute forms.
The transmitter of this 4-20mA DC current standard signal output, can be according to flotation froth the bright-dark degree through imaging, output 4-20mA DC current standard signal, between 4-20mA DC current standard signal, each value of continuous signal all reflects, correlation between the speed of the ratio of preparing burden in floatation process, foam generation and the quantity and quality of selected concentrate, from these relations, just can find out the proportioning of various materials, the speed that flotation is stirred, size of throughput etc. has with output and quality each node being closely connected; Utilize the node of having chosen, adopt various monitoring elements and performer, according to the input and output situation of image, through each node parameter of 4-20mA DC current standard signal setting, reach the object that flotation automation is controlled.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention; Fig. 2 is embodiment of the present invention schematic diagram.
The specific embodiment:
Below in conjunction with accompanying drawing, the invention will be further described,
First, the invention of the sequence number representative of key diagram 1-Fig. 2 forms title: the material in flotation device equipment 1, equipment and foam 2, with the permanent video camera 3 of light source of adularescent, the output of the image pickup signal of video camera cable 4, computer 5, computer display 6, plate glass 7, lead fiber 8, frame 9, interface connector 10, conical light source receiver 11, optical fiber wire 12, conical light source follower 13, photo resistance 14, current loop amplifier 15, fibre-optic bundle 16, interface 17, photoelectricity seal casinghousing 18.
Embodiment:
As shown in Fig. 1-2 figure,
The conversion method device of a kind of froth flotation shooting gray level image and analog quantity, it is characterized in that: flotation device equipment 1, material in equipment and foam 2, in the suitable position of flotation device equipment, install one with the video camera 3 of the permanent light source of adularescent, the image pickup signal output cable 4 of video camera, be connected to computer 5 inputs that receive signal, pasting computer display 6, fixed one flat plate glass 7, the periphery end face of plate glass 7, be embedded in plate glass periphery and inlay frame 9, in frame 9, periphery has fixedly mounted one end close-packed arrays and the optical fiber 8 that end face is parallel to the periphery end face of plate glass, optical fiber 8, part except two-end part, neat sealing is fixed in frame 9 grooves, along frame 9, the optical fiber 8 of periphery forms a fibre-optic bundle 16, fibre-optic bundle 16 interface 17 places that this fibre-optic bundle 16 is processed at frame, all optic fiber end faces of fibre-optic bundle 16, repair into and radially perpendicular consistent end face,
By plate glass 7 surrounding end faces, the light source that receiving computer display screen 6 image lights reflect; The light source of plate glass 7 surrounding end faces, optical fiber 8 end faces that are parallel to again the periphery end face of plate glass 7 receive, and concentrate in together and are fixed on 9 processing interfaces of frame, 17 places' formation fibre-optic bundles 16, as output light source; By inlaying the processing interface 17 and interface connector 10 of frame 9, be connected; Interface connector 10, the inner conical light source receiver of being fixed 11 and fibre-optic bundle 16, diameter is identical; Conical light source receiver 11 and fibre-optic bundle 16, be separately fixed among interface connector 10 and interface 17, by interface connector 10 and interface 17, by conical light source receiver 11 and fibre-optic bundle 16, links together;
The conical light source receiver 11 that interface connector 10 is fixed, conical light source receiver 11 connects optical fiber wire 12, and optical fiber wire 12 connects conical light source follower 13, and taper light source follower 13 and photo resistance 14 have formed optical-electrical converter;
The circular cone tail end of conical light source receiver 11, be fixedly connected with one end of optical fiber wire 12, the other end of optical fiber wire 12 is fixedly connected with the circular cone tail end of conical light source follower 13, an axial photo resistance 14 is close in the large end of circular cone of conical light source follower 13, conical light source follower 13 and photo resistance 14 and be connected, part optical fiber wire 12 and photo resistance 14 part radial seals are fixed on 18 li of photoelectricity seal casinghousings, 18 li of two photo resistance 14 pin of drawing of photoelectricity seal casinghousing, be connected with other three resistors, formed a Gordon Adams Bridge, two nodes of Gordon Adams Bridge respectively connect constant-current source positive and negative terminal, by constant-current source as constant current drive, Hui Shi steps on another two the height potential nodes of bridge, respectively be connected to the input of current loop amplifier 15, mate the transmitter that forms the output of 4-20mA direct current standard signal with other electron component.The transmitter of this 4-20mA DC current standard signal output, can be according to flotation froth the bright-dark degree through imaging, output 4-20mA DC current standard signal, between 4-20mA DC current standard signal, each value of continuous signal all reflects, correlation between the speed of the ratio of preparing burden in floatation process, foam generation and the quantity and quality of selected concentrate, from these relations, just can find out the proportioning of various materials, the speed that flotation is stirred, size of throughput etc. has with output and quality each node being closely connected; Utilize the node of having chosen, adopt various monitoring elements and performer, according to the input and output situation of image, through each node parameter of 4-20mA DC current standard signal setting, reach the object that flotation automation is controlled.
Claims (1)
1. the conversion method device of froth flotation shooting gray level image and analog quantity, it is characterized in that: flotation device equipment, material in equipment and foam, in the suitable position of flotation device equipment, install one with the video camera of the permanent light source of adularescent, the image pickup signal output cable of video camera, be connected to the computer input end that receives signal, pasting computer display, fixed one flat plate glass, the periphery end face of plate glass, inlay plate glass periphery and inlay frame, in frame, periphery has fixedly mounted one end close-packed arrays and the optical fiber that end face is parallel to the periphery end face of plate glass, optical fiber, part except two-end part, neat sealing is fixed in frame groove, along frame, the optical fiber of periphery forms a bundle, the optical fiber interface that this bundle is processed at frame, all optic fiber end faces of fibre-optic bundle, repair into and radially perpendicular consistent end face,
By plate glass surrounding end face, the light source that receiving computer display image light reflects; The light source of plate glass surrounding end face, the optic fiber end face that is parallel to again the periphery end face of plate glass receives, and concentrates in together and is fixed on frame institute processing interface place formation fibre-optic bundle, as output light source; By inlaying processing interface and the interface connector of frame, be connected;
Interface connector, inner conical light source receiver and the fibre-optic bundle of being fixed, diameter is identical; Conical light source receiver and fibre-optic bundle, be separately fixed among interface connector and interface, by connector and interface, by conical light source receiver and fibre-optic bundle, links together;
The conical light source receiver that interface connector is fixed, conical light source receiver connects optical fiber wire, and optical fiber wire connects conical light source follower, and taper light source follower and photo resistance have formed optical-electrical converter;
The circular cone tail end of conical light source receiver, be fixedly connected with one end of optical fiber wire, the other end of optical fiber wire is fixedly connected with the circular cone tail end of conical light source follower, an axial photo resistance is close in the large end of circular cone of conical light source follower, conical light source follower and photo resistance and be connected, part optical fiber wire and the radial seal of photo resistance part are fixed in photoelectricity seal casinghousing, two photo resistance pin of drawing in photoelectricity seal casinghousing, be connected with other three resistors, formed a Gordon Adams Bridge, two nodes of Gordon Adams Bridge respectively connect constant-current source positive and negative terminal, by constant-current source as constant current drive, Hui Shi steps on another two the height potential nodes of bridge, respectively be connected to the input of current loop amplifier, mate the transmitter that forms the output of 4-20mA direct current standard signal with other electron component.
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| CN201310013778.1A CN103920598A (en) | 2013-01-15 | 2013-01-15 | Conversion method device for foam flotation camera gray image and analog quantity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108654845A (en) * | 2018-04-28 | 2018-10-16 | 宜春市金地锂业有限公司 | A kind of screening technique and device for lepidolite ore dressing |
| CN109290065A (en) * | 2018-09-06 | 2019-02-01 | 山西智卓电气有限公司 | A kind of three parametric image detection device of floating tail-coal and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108654845A (en) * | 2018-04-28 | 2018-10-16 | 宜春市金地锂业有限公司 | A kind of screening technique and device for lepidolite ore dressing |
| CN109290065A (en) * | 2018-09-06 | 2019-02-01 | 山西智卓电气有限公司 | A kind of three parametric image detection device of floating tail-coal and method |
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