(57) Abstract:The invention relates to the sorting of crystals. The inventive device includes a delivery unit of interest, the node control block form the control signal, the block multiband sort, hoppers, feed block object in the control zone is made in the form of a rotary drum, is provided on the envelope surface of the vacuum holders, made in the form of a hollow conical driven gears mounted for rotation around its own axis during their interaction with the stationary gear mounted on the fixed axis of the drum in its cavity. 4 Il. The invention relates to diamond-processing industry, namely, devices sort of diamonds based on optical measurement methods. Can also be used in mechanical engineering, microelectronics industry for sorting small items, crystals, chips and other similar objects.You know the color measurement device diamonds (patent Germany N DE 3223876 C2, CL G 01 N 21/87) containing the optical measuring system and a vacuum holder of the diamond, with sterowania roizvoditelnost, due to the fact that the analyzed object oriented and installed in the holder manually. In addition, the placement of the object in the depth of the profiled recess limits the amount of optical and dimensional characteristics available for analysis, resulting in reduced accuracy of the sorting.The closest in technical essence to the invention is a device for sorting diamonds , consisting of a block of the auto-enrollment objects, conveyor, illuminator, a block of sensors, microprocessor, distribution box and block bunkers.The disadvantage of this device are a waste of time and low accuracy of the sorting. Downtime caused by the uneven positioning of the objects on the conveyor of the displacement of the object relative to each other during movement of the feed block on a moving conveyor and of the displacement of the loose objects during movement of the conveyor.At unequal distances between objects on the conveyor it is possible that two neighboring object will be located so close, that in the field of view of the photodetectors will be present both objects simultaneously, celedonia objects may be less than the sum of the response time of unit photodetectors and time of data processing in the microprocessor. Obviously, this will lead to less accurate and in some cases for refusal of recognition.The purpose of the invention is improving the accuracy and reliability of the control.In Fig. 1 shows a finisher, front view; Fig. 2 - finisher, top view; Fig. 3 - the design of the conveyor; Fig. 4 - mount design objects.The proposed device (Fig. 1, 2) consists of block 1 of the filing of objects, control unit, made in the form of an optical measuring system having a field of view 2 and formed by the illuminator 3 and unit 4 photodetectors, unit 5 form the control signal (microprocessor), block 6 multiband sort of distribution, block 7 bunkers, loading block object in the control zone, made in the form of a rotary conveyor 8, on the working surface of which is N (N = 1, 2, 3...) holders 9, equipped with holes and working on the principle of vacuum suction cups with transported them in the process of pipeline objects 10 sort. Unit 1 supply of objects and the rotary conveyor 8 are connected by a storage hopper 11, is made in the form of an inclined chute. The valve 12 is located in the lower part of the rotary conveyor 8 above SS="ptx2">Rotary conveyor, the construction of which is illustrated in Fig. 3, is a hollow drum 13, with the possibility of rotation on a fixed horizontal hollow shafts 14. The hollow drum 13 is connected with the gear 15 meshing with the gear 16, is pressed on the motor shaft 17. By forming the hollow drum 13 posted by vacuum chucks 9, with the possibility of rotation and rigidly United with the bevel gears 18 included in turn in mesh with the bevel gear 19 is pressed onto the hollow shaft 14. Vacuum chucks through the hollow drum 13 and the hollow shaft 14 is connected to a vacuum line.The design of the vacuum holder 9 is illustrated in Fig. 4 and is a hollow cylinder 21 with a flat bottom, in which there are openings 22. The diameter of the hole 22 is smaller than the object 10 in order to prevent any members of the object 10 (vertex, face) into the holes 22, i.e. in the area, is not available for optical measurements. The cylinder 21 is pressed onto the hollow shaft 23, with the possibility of rotation in the hole envelope of the hollow drum 13 and is provided with seals 24. On the free end of the hollow axis 23 pressed bevel gear 18. Holes 22 through p which operate as follows.Motor 17 (Fig. 3) through gears 16 1 5 rotation is transmitted to the drum 13. When the rotation drum 13 is stationary bevel gear 19 reports the movement of the conical gear wheels 18, which are vacuum holders. The analyzed object 10 (Fig. 1, 2) coming from the unit 1 automatic feeder and get into the storage hopper 11, is made in the form of an inclined chute, and form a queue, standing in rows behind each other, and the first object from the queue refers to the working surface of the rotary conveyor 8. When passing in the vicinity of the cutoff trench bunker-drive 11 regular vacuum holder 9 of the first object from the queue falls in a stream of air, sucked through holes 22 (Fig. 4), is pressed against the surface of the holder and covering the hole, held in the future on a flat surface of the holder 9 by vacuum. With continued movement of the conveyor 8 (Fig. 1) and, consequently, the holder 9, the object is retrieved from the queue and enters the field of view of 2 of the optical system. The next object from the queue.When the occurrence of the object 10 in field 2 of the optical measuring system starts the measurement cycle characteristics objectivesto with holder 9 360about. Optical measuring system produces M (M = 1, 2. 3...) measurements. Measurement data is transmitted to the microprocessor 5. Based on their analysis, the microprocessor 5 determines the optical and dimensional characteristics of the object, determines and saves the number of bins corresponding to these characteristics, generates and outputs the control signal to the block 6 distribution and proceeds to the analysis of the data of the next object, which is included at this point in field 2 of the optical measuring system. The signal control unit 6 distribution is generated by the microprocessor 5 to each object, completing its way through the pipeline 8 and relieved him of the flap 12, was sent to unit 6 distribution in the corresponding bin unit 7 of the bunkers.Thus, in the steady state operation of the conveyor 8 is cyclically repeating the process, alternating retrieve objects 10 from the hopper drive 11, which is continually updated from unit 1 automatic feeder of objects, analysis of multiple projections of the object 10, the rotatable relative to the optical axis of the measuring system 360about, data processing, signal control, actuation unit RA the objects 10 of block 1 automatic feeder is set equal to the rate of movement of objects on the conveyor 8, and random change of pace receipt of interest (taking place in almost all known devices automatic document feeder) and the inconsistency in the time of the submission of the object and the moment of passage of the next holder 9 on the conveyor 8 is compensated by the turn of the objects formed in the hopper 11.Concrete finisher is designed for selection of diamond raw materials on the basis of form, calculated on the particle size of raw materials 0,5...1 carat (size of the crystals of 2,5...5 mm) and contains the power supply, made in the form of a vibrating hopper; an optical system consisting of illuminator on the basis of incandescent bulbs (8, 20 W), TV cameras, L-50, a rotary conveyor with a diameter of 240 mm, equipped with nine vacuum holder having a flat surface with a diameter of 18 mm with thirteen holes with a diameter of 0.8 mm, the distribution Unit is made in the form of a guide tube, set in the direction of the respective hopper stepper motor of DSHI-200-2. Block bunkers has four hoppers with a capacity of 50 cm3each. Microprocessor type UMK-10 on the basis of the IPC C, the clock frequency of 2.5 MHz.The proposed device is under test experienced the volume of the delivery unit of crystals, site submission crystals on the testing and consistently connected to the control unit, the processing unit impulse control and Executive mechanism multiband sorting, characterized in that, to improve the accuracy and durability of the sort that the delivery unit is a node of a single-piece feed of crystals, and the feed unit of crystals on the position control is made in the form provided by the actuator and mounted on a hollow stationary axle of the rotary drum in the cavity of which is fixed on the fixed axle bevel gear on the envelope surface of the drum set vacuum holders of crystals associated with the line of compressed air, made in the form of a hollow conical driven gears, installed with the possibility of rotation around its own axis during their interaction with the stationary gear.
FIELD: mining industry; diamonds mining.
SUBSTANCE: the invention is pertinent to mining industry, in particular, to diamonds mining. The technical result of the invention is increase of electrical safety of a separator and reliability of its operation with simultaneous decrease of weight and dimensions of a power supply source for an X-ray tube. The separator contains a device of loading of a feed stock, a chute for delivery of the feed stock in a zone of detection of a required product, an X-ray tube connected to a source of its power supply, a photomultiplier, a block of control and data processing, a device for separation of a target product and a device for separate collection of the target and the end products. The source of power supply for the X-ray tube contains a transducer of mains voltage into low-voltage high-frequency voltage, a high-voltage transformer and a voltage multiplier. At that the high-voltage transformer and the voltage multiplier and also the X-ray tube are placed in a hermetic body filled in with a high-voltage insulating substance. One wall of the body has an opening, in which there is a fixed anode of the X-ray tube, which window for pass of the X-rays protrudes beyond the limits of the body.
EFFECT: the invention ensures electrical safety of a separator and reliability of its operation with simultaneous decrease of weight and dimensions of a power supply source for an X-ray tube.
SUBSTANCE: method involves determining coordinates of subsequent centers of inertia by coordinate axes X and Y, which are calculated by 3 subsequent points of contour; determining belonging thereof to multiplicity of coordinates of boundary points of object projection; counting centers of inertia not belonging to said multiplicity of coordinates.
EFFECT: increased precision in sorting of seed.
FIELD: minerals dressing.
SUBSTANCE: the offered inventions concern to dressing of minerals, in particular, to dressing of a ground mineral material. The technical result of the inventions is improved selectivity of separation of a source material by a choice of efficient way of separation and elimination of an effect of noises of a channel of registration and instability of the excitation system operation; improved automatic adjustment of the registration and excitation systems, reduction of an amount of used hardware and the time necessary for performance of the prestarting inspection and also provision of the automatic prestarting and periodic inspection and an increase of its reliability. For this purpose the separator contains means of delivery and transportation of the source material in a zone of inspection; a source of an exciting radiation; a photo-receiving device, and means of treatment of a signal of the luminescence including an analog-digital converter (ADC), a unit of the random-access memory (RAM), a register of a separation threshold and a microprocessor. In addition the separator is supplied with a register of delay and a synchronizer, the first output of which is connected to the input of the analog-digital converter start; the second output is connected to the input of the RAM; and its third output - with the input of the record of the microprocessor. The reading inputs of the random-access memory, the register of a threshold and the register of delay are connected accordingly to the first, second and third outputs of the microprocessor. The method of control over operation of the separator is based on a periodic use of its indicators in absence of a separated material for registration of intensity of their luminescence. In the capacity of an indicator they choose the air filling the volume of the separator, in the capacity of the way of separation - the normalized autocorrelation function (NACF) of a luminescence signal. At that they normalize the value of the NACF signal of the luminescence by its division by the result of integration of a square of a registered signal of a luminescence. Determine a threshold of separation equal to a threshold set at operation in a mode of separation. The value of the parameter of separation they choose so, that the value of NACF at the chosen value of the parameter exceeded the threshold.
EFFECT: the invention ensures improved selectivity of the source minerals separation, elimination of operational noises of the registration and other systems, automatic adjustment of the systems, reduction of hardware amount and time for preparation, increased reliability.
8 cl, 3 dwg
FIELD: woodworking industry; production of multilayer wood materials, plywood or layered materials.
SUBSTANCE: the invention is pertaining to the field of woodworking industry, in particular, to a method of increasing strength and-or decreasing its deviations in the multilayered wood materials, plywood and the similar wood materials. The method includes measuring of the density (ρ) of the dry substance of the wood veneer sheets by means of a high-frequency electromagnetic resonance and additionally - the analysis of uniformity and-or a fibrous structure of the indicated sheets using darkening (R) their surfaces. In the case when a sheet of the wood veneer contains some number of the local first areas, which are more dark than the main darkening of the wood veneer sheet surface, such sheet has its own calculated density (ρc) of the dry substance set on the more low level as compared with its originally measured value (ρm) of the dry substance. On the other hand, if the wood veneer sheet has essentially homogeneous darkening, for this sheet they estimate the longitudinal and transversal distribution of its density of the dry substance. If these parameters are essentially uniform, then for the process of sorting the calculated density (ρc) of the dry substance of the indicated wood veneer sheet is set higher, than its originally measured value (ρm). the wood veneer sheets assort On the basis of the indicated calculated dry substance densities the wood veneer sheets are assorted at least into two different categories of density. In the first such category (A) the density of the dry substance is higher, than in the second category (B). The wood veneer sheets are laid face to face for forming a laminated wood, plywood or any other laminated material. At that, the wood veneer sheets referred to the first and the second categories of density serve accordingly as the surface sheets and the middle sheets.
EFFECT: the invention ensures an increase of strength and/or a decrease of its deviation values of the dry substance in the multilayered wood materials, plywood and the similar wood materials.
21 cl, 8 dwg
FIELD: jewel technology.
SUBSTANCE: invention relates to methods for concentrating diamond-containing ore using physical effects and can be used to control processes. Diamond imitator for controlling diamond-containing raw material separation contains solid material, which is a mixture of binder with weighing, luminescent, coloration, and magnet components, said binder containing X-ray transparent substance, said magnet component containing conducting and X-ray transparent substance, and said weighing component containing substances or substance mixtures selected from second series elements with density 2.7 g/cm3 and effective atomic number 5.5-6.5.
EFFECT: increased separation process reliability and reduced price of diamond imitator.
7 cl, 4 ex
FIELD: separating solid materials.
SUBSTANCE: method comprises processing the recorded luminescence signal from a mineral and separating the mineral to be enriched by comparing the signal with a specified threshold signal according to the separating criterion. For the separating criterion, a self-correlation function of the luminescence signal of the mineral is used.
EFFECT: enhanced quality of sorting.
8 cl, 3 dwg
FIELD: mining industry; minerals dressing and grading.
SUBSTANCE: the invention is pertaining to the field of upgrading and grading of minerals and may be used at dressing of the diamond-bearing ores and quality grading of the diamonds. The method provides for the optical rays irradiation of the minerals, registration of the scattered radiation in two spectral bands of the determined width, one of which contains the line of the Raman effect, the second band does not contain the line of the Raman effect, but envelops the first band from two sides, comparison of the signals in these two bands, identification and separation of the in compliance with the results of this comparison, in which the width of the spectral bands is regulated according to the condition: ▵ν1=ν0±δ,▵ν2= ν0±2δ-▵ν1, where: ▵ν1 - the bandwidth of the spectrum containing the line of the Raman effect;▵ν2 - the bandwidth of the spectrum, which does not contain the line of the Raman effect, but enveloping the first band from two sides; ν0 - the frequency of the maximum of the line of the Raman effect; δ - the band of the a frequencies of the selected line in the Raman effect spectrum. The device consists of: the storage hopper; the feeding mechanism; the source of the optical radiation; the inlet slit; the convergent lens; the dispersing component; the measuring channel with the outlet slit of the determined width, which outer surface is reflective; the reference channel receiving the light flux reflected from the outer surface of the exit slit of the measuring channel supplied with the outlet slit; imagers; the electronic unit; the executive actuating mechanism; recipients of the concentrate product and the tailings. At that the slits of the reference channel and the measuring channel are arranged coaxially and made adjustable. The technical result of the invention is the increased selectivity of the separation due to the more exact singling out of the Raman effect from the background noise.
EFFECT: the invention ensures the increased selectivity of the separation due to the more exact singling out of the Raman effect from the background noise.
3 cl, 5 dwg
FIELD: enriching or classifying of materials.
SUBSTANCE: method comprises transporting minerals as a multi-layered system, affecting the minerals by penetrating radiation that excites luminescence, recording light beam of luminescence from the side of penetrating radiation and from the opposite side, and separating the mineral comparing the results with a reference value. The transparency of mineral is additionally determined. The minerals are separated according their transparency to the penetrating radiation. The transparency of mineral is determined from the difference of logarithms or from the logarithm of the ratio of the light beams of mineral luminescence from the side of the exciting flux to that from the opposite side.
EFFECT: improved quality of separation.
2 cl, 3 dwg
FIELD: mining industry; methods of dressing of the mineral resources.
SUBSTANCE: the invention pertaining to the field of the minerals dressing, in particular, to the methods of of the radiometric separation of the ores, and may be used for separation of the fluorescent minerals. In the process of separation of the minerals conduct transportation of the minerals in the form of the monolayer stream of the being separated material, its irradiation by the penetrating radiation, registration of the intensity of the luminescent emission of the mineral from the side opposite to the incident stream of the penetrating radiation, comparison of the intensity with the preset threshold value and the subsequent separation of the useful mineral according to the outcome of the comparison. Additionally conduct registration and storage of the intensity of the luminescence of the air and change the threshold value proportionally to received value of the luminescent emission of the air. Irradiation by the penetrating radiation conduct the incident stream with the width larger than the width of the stream of the separable material; the intensity of the air and the mineral luminescent emission is registered under the flat angle (180°) or the blunt angle concerning the incident stream of the penetrating radiation. At that the air luminescent intensity is registered beyond the limits of the width of the stream of the separable material, and the intensity of the luminescent emission of the mineral is registered within the limits of the width of the stream of the separable material in the zone of the material irradiation and-or behind it along the material motion. The invention ensures the increased selectivity and the self-acting maintenance of the level of the separation, that allows to exercise the process of the separation of the minerals more efficiently.
EFFECT: the invention ensures the increased selectivity and the self-acting maintenance of the level of the separation, that allows to exercise the process of the separation of the minerals more efficiently.
2 cl, 1 dwg
FIELD: technological processes; mining.
SUBSTANCE: method involves exciting irradiation of minerals, luminescence filtration, registration of filtered luminescent light flux part and useful component separation according to a given light flux value. Light flux registration is performed in the zone of spectral luminescence density minimum of separated minerals. During light flux filtration blue-green spectral zone within the range of 450-550 nm is separated, e.g. through a couple of SZS-3 and SS-20 filters or interference filter with maximum permeability at 520-530 nm.
EFFECT: increased process selectivity.
3 cl, 9 dwg, 1 ex
FIELD: testing of precious stones.
SUBSTANCE: diamond is fixed onto holder and tested under specified angle for getting image. Then second measurement is made for getting two sets of data calculated by means of computer. The second set of data can be received by means of measurement of depth or due to changing direction of viewing.
EFFECT: improved precision of localization.
6 cl, 2 dwg
FIELD: technology for processing diamonds into brilliants.
SUBSTANCE: in the method, by experimental or calculation-theoretic way in glow images visible to observer optical characteristics of diamond glow are determined, including glow intensiveness, glow glimmer and color saturation of glow, characterized by level of decomposition of white color on rainbow colors, and also relief coefficient of glow, characterized by average number of intensive color spots in glow image, distinctive to human eye, and additionally, by dividing glow image on compound portions, average values of glow intensiveness of compound portions are measured. Optical characteristics of glow are transformed to glow factors. As average coefficient of brilliant glow charm, which is used to estimate brilliant glow charm, charm coefficient is used, calculated as average value of factors of intensiveness, glimmering, color saturation and glow image geometry.
EFFECT: possible objective measurement and numeric estimation of brilliants glow charm, and possible certification of them on basis of glow charm.
5 cl, 22 dwg, 11 tbl
FIELD: investigating or analyzing materials.
SUBSTANCE: device comprises housing provided with solid body laser connected with the window in the heat insulating tank filled with liquid nitrogen and provided with the precious stone, semiconductor laser connected with the window, two spectrometers for detecting luminescence in the range of 550-10000 nm, and processor for processing signals from the spectrometers.
EFFECT: reduced sizes and simplified method of testing.
47 cl, 9 dwg