RU2615655C1 - Vibration mixer - Google Patents

Abstract

FIELD: building.

SUBSTANCE: invention allows expanding the store of technical means and new features achievement by the claimed objects. That is, the creation of two different frequency vibration fields over the entire volume of the mixer chamber for blending components of the concrete mixture is ensured. Each of the vibration fields correspond as for their form to corrugated contour of three-dimensional rotation body, forming in vertical plane section at top points of the goffer the truncated regular pentagon with the possibility to create overlay effect of the given vibration fields in the center of the mixing chamber providing the possibility of creating a plurality of cumulative two-frequency fields, each of which corresponds to spiral and screw shape with creation of dynamic effect of the given vibration fields overlapping with simultaneous formation in the two-frequency field of multidirectional vibrations that completely exclude the presence in the chamber of the mixer "blind" zones, additional vibration effects on blending components and ensure uniform amplitude distribution of each vibration field in the mixing chamber with quality intensification of the mixing process of these components as a whole. The technical result is achieved in that the vibration mixer comprises a mixing chamber with windows for materials loading and unloading respectively, the rotor with blades and rotary drive. In the upper and lower parts of the center of the mixing chamber the upper and lower vibrators are rigidly fixed, made in corrugated bodies with vibration excitement by means of lower and upper crank mechanisms respectively. The disks are rigidly fixed with guide bars inside both housings in the center of the horizontal plane, which function is to create sustainable directional translational movements of the rods of the translational pair formed by the guide bar of the lower part of the mixing chamber and the rod of the lower vibrator, lower crank mechanism and from the translational pair formed by the guide bar of the upper part of the mixing chamber, guide bar of the rotation drive of the blades and the rod of the upper vibrator, upper crank mechanism respectively. Besides, the disks of the lower and upper vibrators are performed with cylindrical projections arranged for insertion and fixing of springs along the internal diameter of the buckets with the function of free compression / release; with rods rigidly mounted at the central inner parts of the buckets and the pushers rigidly fixed to their central external parts with their other ends rigidly fixed at the inner parts forming the smallest of the corrugations of the housings with the function to excite oscillations from the smallest corrugations of the vibrators housings. Wherein four projections are symmetrically secured at the outer cylindrical parts of the buckets whose function is to transmit reciprocating motion to the disks intended to execute homogeneous distribution of the vibration fields from the smallest corrugations of the housings to the place of fixing of the given housings by means of creation of homogeneous amplitude displacement values of each point of outer generatrix of the corrugated housings, while spring compression to the stop into rubber gaskets made for shock absorption of collision force of projections and disks. Housings of vibrators are made in the form of uniform corrugated metal coverings, which are corrugated thin-walled bodies of rotation forming truncated regular pentagons in the vertical sections at top points of the corrugation adapted to create two identical in amplitude and different in frequency vibration fields, each of which correspond to the corrugated contour of the given bodies of rotation with multi-directional vibrations. The spring exciter is located between the housings of the lower and upper vibrators in the center which is made in the form of spring group consisting of, at least, two springs of different diameters fixed in hollows according to their diameters formed on the outer surface of corrugated metal coverings by the smallest of the corrugates of the upper and lower vibrators, the function of which is the creation of a set of groups of aggregated two-frequency vibration fields, each of which corresponds to the spiral and screw shape of the central springs of the spiral exciter to form dynamic effect of overlapping of the given vibration fields, and additional vibration effects on the components being mixed from the upper and lower housings of the vibrators respectively.

EFFECT: invention relates to the devices for concrete compounds mixing and can be used in the building materials industry, construction and other fields of construction industry for the production of multi-component mixtures.

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Description

The invention relates to devices for mixing concrete mixture and can be used in the construction materials industry, in construction and other areas of the construction industry for the production of multicomponent mixtures.

Currently, one of the urgent aspects of the development of the construction industry is monolithic construction, an important role in which is given to the preparation of concrete mixtures at the initial stage of production. Analysis of various sources makes it possible to detect the diversity of existing industrial concrete mixing machines implemented on the basis of machining in order to obtain high-quality concrete mixtures, i.e. getting them as homogeneous in composition as possible. The latter, in particular, makes it possible to distinguish the method of vibrational treatment of concrete mixtures, which has been tested by time and many scientific works, both in a single case and in conjunction with conventional mechanical activation.

The prior art various devices that are implemented on this basis.

So, for example, gravity mixers are known (Patent RU 148474 U1, 12/10/2014, B28C 5/22, B01F 11/00; Patent RU 148526 U1, 12/10/2014, B28C 5/22, B01F 11/00; Patent RU 148529 U1 , 10.12.2014, B28C 5/22, B01F 11/00; Patent RU 148597 U1, 12/10/2014, B01F 11/00; Patent RU 148598 U1, 12/10/2014, B01F 11/00; Patent RU 148599 U1, 10.12. 2014, B01F 11/00; Patent RU 148600 U1, 12/10/2014, B01F 9/00; Patent RU 148601 U1, 12/10/2014, B01F 11/00) containing a rotating drum with blades and a rotation drive mounted in a support inside the drum is a cantilever vibrator with kinematic excitation of oscillations and a rotation drive, the vibrator is made with a housing mounted on the crank atom to the shaft so that its longitudinal axis is 5-10 ° with the axis of the drum, one end of the housing is coaxially connected to the bottom of the drum using an elastic element, and the second is supported by a spherical bearing on the connecting rod support of the crankshaft, on which the imbalance performed with the function dynamic balancing of unbalanced masses. In this case, the body of the vibrators are made in the form of metal thin-walled geometric bodies of various shapes.

The main drawback of the design of these mixers is the lack of necessary vibration protection of the design elements of the mixers due to the use of vibrators of an eccentric type.

Also known is a rotary vibration mixer with a ring magnetostrictive transducer (Patent RU 2318586 C2, 03/10/2008, B01F 11/00), comprising a mixing chamber, a rotor with a rotary drive made with blades, a vibrator, characterized in that the vibrator is made in the form of a radiating high-frequency vibrations of the pipe with the disk and is rigidly fixed in the middle of the mixing chamber.

The main disadvantage of this mixer is the ineffective vibrational study of the mixture or its complete absence in the upper corner (“deaf”) zones of the mixing chamber.

Also known is a rotary mixer with a mechanical vibration exciter (Patent RU 2297274 C1, 04.20.2007, B01F 11/00), comprising a mixing chamber, a rotor with a rotary drive, made with blades, a vibrator made in the form of disk springs with rubber shock absorbers and rigidly fixed in middle of the mixing chamber. The vibrator has a crank mechanism, with the help of which the Belleville springs excite particle vibrations in the horizontal direction. In the mixer, it is possible to adjust the intensity of the vibration by changing the speed of the drive of the crank mechanism.

The main disadvantages of this mixer include significant energy costs for the deformation of Belleville springs, a high percentage of wear of rubber shock absorbers, as well as insufficiently effective thixotropic destruction (dilution) of the material structure due to the excitation of vibrations of a strictly horizontal direction in the concrete mixture.

The prior art also knows a rotary mixer with an electromechanical vibration exciter (Patent RU 2292943 C1, 02/10/2007, B01F 11/00) containing a mixing chamber, a rotor with a rotary drive made with blades, a vibrator made in the form of a bellows with a disk, is rigidly fixed in the middle of the mixing chamber. The vibrator has an electromagnet, with the help of which the bellows excites particle vibrations in the horizontal direction. The mixer has the ability to adjust the intensity of the vibration by changing the frequency of the alternating current supplied to the electromagnet winding.

The disadvantages of this device include the ineffective vibrational study of the mixture or its complete absence in the upper corner (“deaf”) zones of the mixing chamber due to the geometry of the bellows strictly cylindrical in shape, as well as inhomogeneous amplitude values of movements decreasing from the place of force acting to the fixation point of the bellows, in each individual section of the bellows, as a result of which the fluctuations from the place of force impact to the place of fixation of the bellows will have a damping nature, which This leads to a decrease in the efficiency of vibration effects on the concrete mixture in the lower part of the mixing chamber.

The closest analogs are vibration mixers (Patent RU 2494795 C1, 10/10/2013, B01F 11/00; Patent RU 2494796 C1, 10/10/2013, B01F 11/00; Patent RU 2494797 C1, 10/10/2013, B01F 11/00; Patent RU 2494798 C1, 10/10/2013, B01F 11/00; Patent RU 2494799 C1, 10/10/2013, B01F 11/00; Patent RU 2494800 C1, 10/10/2013, B01F 11/00; Patent RU 2494801 C1, 10/10/2013, B01F 11/00; Patent RU 2494802 C1, 10/10/2013, B01F 11/00; Patent RU 2494803 C1, 10/10/2013, B01F 11/00; Patent RU 2494804 C1, 10/10/2013, B01F 11/00; Patent RU 2494805 C1, 10.10.2013, B01F 11/00; Patent RU 2494862 C1, 10.10.2013, B01F 11/00; Patent RU 2495710 C1, 10.20.2013, B01F 11/00; Patent RU 2496562 C1, 10.27.2013, B01F 11 / 00; Patent RU 2496563 C1, 10.27.2013, B01F 11/00; Patent RU 2496564 C2, 10.27.2013, B01F 11/00; Patent RU 2496565 C2, 10.27.20 13, B01F 11/00; Patent RU 2496566 C2, 10.27.2013, B01F 11/00; Patent RU 2496567 C1, 10.27.2013, B01F 11/00; Patent RU 2496568 C1, 10.27.2013, B01F 11/00; Patent RU 2496569 C1, 10.27.2013, B01F 11/00; Patent RU 2497665 C1, 11/10/2013, B28C 5/16, B01F 11/00; Patent RU 2497666 C1, 11/10/2013, B28C 5/16, B01F 11/00; Patent RU 2497667 C2, 11/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500523 C1, 12/10/2013, B28C 5/00; Patent RU 2500524 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500525 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500526 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500527 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500528 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500529 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2500530 C1, 12/10/2013, B28C 5/16, B01F 11/00; Patent RU 2513931 C1, 04/20/2014, B28C 5/16, B01F 11/00; Patent RU 2513932 C1, 04.20.2014, B28C 5/16, B01F 11/00; Patent RU 2515480 C1, 05/10/2014, B01F 11/02; Patent RU 2515838 C1, 05.20.2014, B01F 11/02; Patent RU 2516569 C1, 05.20.2014, B01F 11/02; Patent RU 2519234 C1, 06/10/2014, B28C 5/16, B01F 11/00; Patent RU 2519426 C1, 06/10/2014, B01F 11/00; Patent RU 2519430 C1, 06/10/2014, B01F 11/00; Patent RU 2519436 C1, 06/10/2014, B01F 11/00; Patent RU 2519437 C1, 06/10/2014, B01F 11/00; Patent RU 2519439 C1, 06/10/2014, B01F 11/00; Patent RU 2519444 C1, 06/10/2014, B01F 11/00; Patent RU 2520103 C2, 06/20/2014, B28C 5/16, B01F 11/00; Patent RU 2520445 C2, 06/27/2014, B01F 11/00; Patent RU 2522073 C2, 07/10/2014, B01F 11/00; Patent RU 2524726 C1, 08/10/2014, B28C 5/00, B01F 11/00; Patent RU 2524729 C1, 08/10/2014, B28C 5/16, B01F 11/00; Patent RU 2524783 C1, 08/10/2014, B28C 5/16, B01F 11/00; Patent RU 2524942 C1, 08/10/2014, B01F 11/00; Patent RU 2525075 C1, 08/10/2014, B28C 5/16, B01F 11/00; Patent RU 2525077 C1, 08/10/2014, B28C 5/16, B01F 11/00; Patent RU 2525081 C1, 08/10/2014, B28C 5/16, B01F 11/00; Patent RU 2528847 C2, 09.20.2014, B01F 11/00; Patent RU 2528850 C1, 09/20/2014, B01F 11/00; Patent RU 2529223 C1, 09/27/2014, B01F 11/00; Patent RU 2533730 C2, 11.20.2014, B01F 11/00; Patent RU 2533787 C2, 11.20.2014, B28C 5/16, B01F 11/00; Patent RU 2533788 C2, 11.20.2014, B28C 5/16, B01F 11/00; Patent RU 2533791 C2, 11.20.2014, B28C 5/16, B01F 11/00; Patent RU 2534113 C2, 11.27.2014, B01F 11/00; Patent RU 2534117 C2, 11.27.2014, B01F 11/00; Patent RU 2534278 C2, 11.27.2014, B28C 5/16, B01F 11/00; Patent RU 2547881 C1, 04/10/2015, B28C 5/48; Patent RU 2548417 C1, 04.20.2015, B01F 11/00; Patent RU 2548419 C1, 04.20.2015, B01F 11/00; Patent RU 2548424 C1, 04.20.2015, B01F 11/00; Patent RU 2548426 C1, 04.20.2015, B01F 11/00; Patent RU 2548429 C1, 04.20.2015, B01F 11/00; Patent RU 2548431 C1, 04.20.2015, B01F 11/00; Patent RU 2548432 C1, 04.20.2015, B01F 11/00; Patent RU 2548434 C1, 04.20.2015, B01F 11/00; Patent RU 2550747 C1, 05/10/2015, B28C 5/48; Patent RU 2556595 C1, 07/10/2015, B28C 5/48; Patent RU 2559989 C1, 08.20.2015, B28C 5/48; Patent RU 2560398 C1, 08.20.2015, B01F 11/00; Patent RU 2560399 C1, 08.20.2015, B01F 11/00, B28C 5/00; Patent RU 2560400 C1, 08.20.2015, B01F 11/00, B28C 5/00; Patent RU 2560401 C1, 08.20.2015, B01F 11/00, B28C 5/00) containing a mixing chamber with material loading and unloading windows and a rotor with blades. In the lower or lower and upper parts of the mixing chambers in the center, one or two vibrators are rigidly fixed, made in the bodies, with the excitation of vibration fields by means of the lower or lower and upper crank mechanisms. In this case, the vibrator bodies are made in the form of corrugated metal shells with different geometry of the bodies of revolution.

However, the main drawback of mixer designs is the lack of providing a set of essential features of these devices with a new property, which consists in creating a vibration field or vibration fields corresponding to or individually corrugated contour of a three-dimensional body of revolution, forming a truncated regular pentagon in a section of the vertical plane along the corrugation vertices .

The technical result consists in expanding the arsenal of technical means and ensuring the achievement of new properties by the claimed objects. That is, it is realized that it is possible to create two vibrational fields of different frequency in the concrete chamber of the concrete mixture to be mixed into the mixed components, each of which corresponds in shape to a corrugated contour of a three-dimensional body of revolution, forming a truncated regular pentagon in a section of the vertical plane along the points of the corrugations, while the ability to create the effect of superimposing data of vibration fields in the center of the mixing chamber, providing the ability to create many groups of scoops full two-frequency vibrational fields, each of which corresponds to a spiral-helical form with the formation of a dynamic effect of the superposition of these vibrational fields, and with the simultaneous formation of multidirectional vibrations in the two-frequency range, completely eliminating the presence of “dead” zones in the mixing chamber, additional vibrational effects on the components being mixed, homogeneous amplitude distribution of each vibration field in the mixing chamber and high-quality intensification of the mixing process of these Components in general.

The technical result is achieved in that the vibration mixer comprises a mixing chamber with windows for loading and unloading materials, respectively, a rotor with a rotation drive, made with blades. In the center of the lower and upper parts of the mixing chamber, two are rigidly fixed: the lower and upper vibrators, made in corrugated cases, with the excitation of vibrations by means of the lower and upper crank mechanisms, respectively. Discs with guide racks are centrally fixed inside each of the housings in the center in a horizontal plane, the function of which is to create stable directed translational movements of the rods from the translational pair formed by the guide strut of the lower part of the mixing chamber and the rod of the lower vibrator, lower crank mechanism, and from the translational pairs formed by the guide rack of the upper part of the mixing chamber, the guide rack of the drive for rotating the blades and the rod of the upper vibrator, top its crank mechanism, respectively. Moreover, the disks of the lower and upper vibrators are made with cylindrical protrusions, the function of which is the possibility of inserting and fixing along the inner diameter of the springs installed with the function of free compression / expansion in the cups, the rods are rigidly fixed to the centers of the internal parts, the pushers are rigidly to the center of the external parts fixed at the other end to the internal parts forming the smallest of corrugations, cases, and made with the function of exciting vibrations from the smallest of corrugations of the vibrators. At the same time, four protrusions are symmetrically fixed along the outer cylindrical parts of the glasses, the function of which is the transfer of reciprocating movements to disks made with the possibility of uniform distribution of vibration fields from the smallest corrugations of the bodies to the fixing points of these bodies by creating uniform amplitude values of the displacements of each external point forming corrugated bodies, at the time of compression of the springs all the way into the rubber gaskets made with the function of softening the impact stupas with discs. The cases of the vibrators are made in the form of identical metal corrugated shells, which are corrugated thin-walled bodies of revolution that form truncated regular pentagons in the vertical plane section along the points of the corrugations, and are configured to create two vibrational fields of the same amplitude and different frequency, each of which corresponds to in the form of a corrugated contour of these bodies of revolution, with multidirectional vibrations. Moreover, between the bodies of the lower and upper vibrators, a spring exciter is located in the center, made in the form of a spring group consisting of at least two different diameters of springs, which are fixed by the diameters of the depressions formed on the outer surface of the metal corrugated shells by the group of the smallest of the corrugations of the lower and upper vibrators , and whose function is to create many groups of cumulative two-frequency vibrational fields, each of which corresponds to a spiral-helical shape of the central springs of the spring exciter with the formation of a dynamic effect of the imposition of these vibration fields, and additional vibration effects on the mixed components from the upper and lower bodies of the vibrators, respectively.

The invention is illustrated by drawings: in FIG. 1 shows a diagram of a vibration mixer; in FIG. 2 is an enlarged diagram of a lower vibrator of a vibration mixer; in FIG. 3 is an enlarged diagram of an upper vibrator of a vibration mixer; in FIG. 4 is an enlarged installation diagram of a spring exciter mounted between the upper and lower bodies of the vibrators. The vibration mixer comprises a mixing chamber 1 with loading and unloading windows 3 of materials 3, respectively, a rotor 4 with a rotation drive 5, made with blades 6, 7, 8. In the lower and upper parts of the mixing chamber 1 in the center are rigidly fixed two: lower 9 and upper 10 vibrators made in corrugated bodies 11, 12, with excitation of vibrations by means of the lower 13 and upper 14 crank mechanisms, respectively, and with the function of creating the effect of superimposing vibration fields in the center of the mixing chamber from the lower 9 and upper 10 vibrations Ator, respectively. Inside each of the housings 11, 12, disks 15, 16 with guide racks 17, 18 are rigidly fixed centrally in the horizontal plane, the function of which is to create stable directed translational movements of the rods 19, 20 from the translational pair formed by the guide strut 21 of the lower part of the mixing chamber 1 and the rod 19 of the lower 9 vibrator, the lower 13 of the crank mechanism, and from the translational pair formed by the guide strut 22 of the upper part of the mixing chamber 1, the guide strut 23 of the blade rotation drive 5 and the rod ohm 20 of the upper 10 vibrator, upper 14 of the crank mechanism, respectively. Moreover, the disks 15, 16 of the lower 9 and the upper 10 of the vibrators are made with cylindrical protrusions 24, 25, the function of which is the ability to insert and fix along the inner diameter of the springs 26, 27, installed with the function of free compression / expansion in the cups 28, 29, to the centers of the inner of the parts of which rods 19, 20 are rigidly fixed, pushers 30, 31 are rigidly fixed to the center of the external parts, rigidly fixed at the other end to the internal parts forming the smallest of corrugations, cases 11, 12, and made with the function of exciting vibrations from the smallest of corrugations of buildings 1 1, 12 vibrators 9, 10. Moreover, on the outer cylindrical parts of the glasses 28, 29 four protrusions 32, 33 are symmetrically fixed, the function of which is the transfer of reciprocating movements to the disks 15, 16, made with the possibility of uniform distribution of vibration fields from the smallest from the corrugations of the housings 11, 12 to the places of fastening of these housings 11, 12 by creating uniform amplitude values of the displacements of each point of the outer generatrix of the housings 11, 12, at the moment of compression of the springs 26, 27 until they stop in the rubber gaskets 34, 35 made the function of mitigating the collision of the protrusions 32, 33 with the disks 15, 16. The bodies 11, 12 of the vibrators 9, 10 are made in the form of identical metal corrugated shells, which are corrugated thin-walled bodies of revolution forming truncated regular pentagons in the vertical section along the corrugation vertices, and made with the possibility of creating two identical in amplitude and different in frequency vibration fields, each of which corresponds in shape to the corrugated contour of these bodies of revolution, with multidirectional fucking. Moreover, between the bodies 11, 12 of the lower 9 and the upper 10 of the vibrators, a spring exciter 36 is located in the center, made in the form of a spring group consisting of at least two different diameters of springs, which are fixed along the diameters of the depressions formed on the outer surface of the metal corrugated shells by the smallest group from the corrugations of the lower 11 and upper 12 cases of the vibrators 9, 10, and the function of which is to create many groups of combined two-frequency vibration fields, each of which corresponds to spiral-wines the final shape of the central springs of the spring exciter 36 with the formation of a dynamic effect of the imposition of these vibration fields, and additional vibration effects on the components to be mixed from the upper 12 and lower 11 bodies 9, 10 of the vibrators, respectively.

The device operates as follows: first, the components of the concrete mixture, the composition of which is preliminarily selected, are loaded through the loading window 2 in layers into the mixing chamber 1 in the following sequence: sand is laid on the bottom of the mixer, then cement, after which crushed stone, lastly, is uniformly fed to the entire load the required amount of water. Then the vibrator drives 9, 10 and the rotor drive 5 of the rotor 4 with the blades 6, 7, 8 are turned on. The drive 5 rotates the rotor 4 and the blades 6, 7, 8, thereby mixing the prepared mixture. Pushers 30, 31 through the cups 28, 29 of the springs 26, 27 and rods 19, 20 by means of the lower 13 and upper 14 of the crank mechanisms make reciprocating movements, thereby exciting vibrations of part of the housings 11, 12, forming the smallest corrugated metal corrugated shell. Moreover, at the time of compression of the springs 26, 27 against the stop in the rubber gaskets 34, 35 of the disks 15, 16, the protrusions 32, 33 transmit reciprocating motion to the disks 15, 16, which thereby additionally excite vibrations of the middle part of the housings 11, 12 and create homogeneous distribution of the amplitude values of the displacements of each point of the external generators of the metal corrugated shells. Moreover, the spring exciter 36, located in the center between the bodies 11, 12 of the lower 9 and the upper 10 of the vibrators, through a group of springs creates additional vibrational effects on the mixed components from the upper 12 and lower 11 of the vibrator bodies 9, 10, respectively. After a predetermined time, the drive 5 of the rotor 4 and the drives of the crank mechanisms 13, 14 are turned off and the finished concrete mixture is unloaded through the window 3 of the mixer housing 1.

In general, the device provides the realization of the possibility of creating throughout the entire volume of the mixer chamber onto the mixed components of the concrete mixture two vibrational fields of different frequency, each of which corresponds in shape to the corrugated contour of a three-dimensional body of revolution, forming a truncated regular pentagon in a section of the vertical plane along the corrugation vertices, with the simultaneous possibility of creating the effect of superimposing data of vibration fields in the center of the mixing chamber, providing the possibility of creating multiple gr PP of the total two-frequency vibrational fields, each of which corresponds to a spiral-helical form with the formation of a dynamic effect of the superposition of these vibrational fields, and with the simultaneous formation of multidirectional oscillations in the two-frequency range, completely eliminating the presence of “dead” zones in the mixing chamber, additional vibrational effects on the components to be mixed homogeneous amplitude distribution of each vibration field in the mixing chamber and high-quality intensification of the mixing process tion of these components as a whole. This is due to the fact that, firstly, the case of the vibrators, made in the form of metal corrugated shells, which are corrugated thin-walled bodies of revolution, forming truncated regular pentagons in the vertical plane section along the points of the corrugations, and made with the possibility of creating two identical in amplitude and vibration frequency fields of different frequencies, each of which corresponds in shape to the corrugated contour of these bodies of revolution, with multidirectional vibrations, allow, on the one hand, to make it possible to create a vibration effect throughout the entire volume of the mixer chamber on the mixed components of the concrete mixture, which completely eliminates the presence of “dead” zones in the mixing chamber, and on the other hand, exclude vibration effects on the vibrator drives, maximally protect the bearing assemblies of the vibrator drive from getting small ones particles of mixed materials, as well as realize the possibility of the complete transfer of “useful” vibrational effects to the processed material. Secondly, the implementation of the design of the mixer of two vibrators, between which a spring exciter is installed in the center and each of which includes: a pusher, a glass with protrusions, a spring, a rod of the crank mechanism and a disk with rubber gaskets, makes it possible to create the effect of superimposing these vibration fields in the center of the mixing chamber with the simultaneous formation of multidirectional oscillations in the two-frequency range and the creation of the possibility by means of a spring vibration exciter of many groups with total two-frequency vibration fields, each of which corresponds to the spiral-helical shape of the central springs of the spring exciter with the formation of a dynamic effect of the imposition of these vibration fields, and additional vibration effects on the mixed components from the upper and lower cases of the vibrators, respectively, of the uniform amplitude values of the displacements of each point of the external generatrix of the metal corrugated shells, thereby allowing for a uniform distribution of vibration field in the mixing chamber, allows to implement a qualitative intensification of the process of mixing the components of the mixture during multi-frequency vibrations, which consists in simultaneously influencing the concrete mixture with vibrations of two or more frequencies and allowing, when superimposed on each other vibration curves, to increase the speed of the particles of the mixture, which, in turn, improves vibration efficiency. Multi-frequency vibration, based on the fact that each grain size corresponds to its own vibration frequency, can be considered as a means of influencing the largest number of grains, i.e. the intensity of multi-frequency vibrations is higher than the intensity of each of its constituent vibrations, thereby reducing the mixing cycle of concrete mixtures. And, thirdly, the design of the mixer allows for an increase in productivity, lower energy consumption for the mixing process, increased mobility and turbulization of the mixture, due to the uniform thixotropic destruction of the material structure in the entire space of the mixing chamber, manifested in a decrease in the specific resistance to movement of the blade in the concrete mixture compared with specific resistance to the movement of the blade of non-destroyed material. In this regard, the resistance to movement of the blades and the power consumption of the rotor rotation drive are reduced. At the same time, the effect of boiling of the mixture under the influence of oscillatory processes of the vibrator body, greater turbulization and more intensive circulation of the particles of the mixture is achieved, as a result of which the mixing time is reduced, the performance of the mixer is increased.

The claimed invention exhibits new properties not known in the art. The essential features are technical in nature and are identifiable. The set of essential features of the claimed device is necessary and sufficient to obtain the required technical result. The claimed combination of features provides an unexpected, unusual ultramodern technical result that exceeds the technical result obtained from each significant feature separately in relation to objects of the specified purpose. The inventive object provides a change in the prior art by non-obvious means, gives the objects new positive properties, satisfies long-term demand and increases the competitiveness of the patented object. Between the essential features of the claimed decision and the achieved technical result, there is a causal relationship. The set of essential features of the proposed solution provides a new unusual principle of operation of objects, which is as effective as possible for objects of this purpose.

Claims (1)

A vibration mixer comprising a mixing chamber with loading and unloading windows, respectively, a rotor with a rotary drive, made with blades, two are rigidly fixed in the lower and upper parts of the mixing chamber in the center: the lower and upper vibrators made in corrugated bodies, with vibration excitation by lower and upper crank mechanisms, respectively, inside each of the housings in the center in the horizontal plane, the discs with guide racks are rigidly fixed, the function of which is the creation of stable directed translational movements of the rods from the translational pair formed by the guide rack of the lower part of the mixing chamber and the rod of the lower vibrator, the lower crank mechanism, and from the translational pair formed by the guide strut of the upper part of the mixing chamber, the guide rack of the rotary blade drive and the upper rod vibrator, the upper crank mechanism, respectively, and the discs of the lower and upper vibrators are made with cylindrical protrusions whose function is the ability to insert and fix along the inner diameter of the springs installed with the function of free compression / expansion in the cups, the rods are rigidly fixed to the centers of the internal parts, the pushers rigidly fixed by the other end to the internal parts forming the smallest of corrugations, cases, and made with the function of exciting vibrations from the smallest of corrugations of the case of vibrators, while on the outer cylindrical parts of the glasses four protrusions are symmetrically fixed, fun which is the transfer of reciprocating movements to disks made with the possibility of uniform distribution of vibration fields from the smallest corrugations of the casings to the fixing points of these casings by creating uniform amplitude values of displacements of each point of the external components of the corrugated casings, at the moment of compression of the springs against the stop in rubber gaskets made with the function of softening the collision of the protrusions with the disks, characterized in that the vibrator bodies are made in the form of identical metal corrugated shells, which are corrugated thin-walled bodies of revolution, forming truncated regular pentagons in the vertical plane section along the points of the corrugation vertices, and made with the possibility of creating two vibrational fields of the same amplitude and different frequency, each of which corresponds in shape to the corrugated contour of these bodies rotation, with multidirectional vibrations, and between the cases of the lower and upper vibrators in the center there is a spring exciter, made in the form of a spring group consisting of at least two different diameters of springs, which are fixed by the diameters of the depressions formed on the outer surface of the metal corrugated shells by the group of the smallest of the corrugations of the lower and upper vibrators, and the function of which is to create many groups of combined two-frequency vibration fields, each of which corresponds to the spiral-helical shape of the central springs of the spring exciter with the formation of a dynamic effect of the imposition of these vibration fields and additional ADDITIONAL vibratory impacts to be mixed components from the upper and lower housings vibrators respectively.

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