CN105499122A - Multi-frequency vibrating screen - Google Patents
Multi-frequency vibrating screen Download PDFInfo
- Publication number
- CN105499122A CN105499122A CN201610001014.4A CN201610001014A CN105499122A CN 105499122 A CN105499122 A CN 105499122A CN 201610001014 A CN201610001014 A CN 201610001014A CN 105499122 A CN105499122 A CN 105499122A
- Authority
- CN
- China
- Prior art keywords
- rack
- pneumatic vibrator
- screen
- resonating body
- ultrasonic transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/04—The screen or the screened materials being subjected to ultrasonic vibration
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a multi-frequency vibrating screen comprising a screen body, a mesh frame, a screen mesh and a vibrating motor, wherein the mesh frame on a screen machine is bonded with the screen mesh to form an integrated body; the integrated body is connected with a pneumatic vibrator and an ultrasonic transducer; the mesh frame comprises a mesh frame outer body, a mesh frame resonance body, and a vibration transmission plate in a welding manner; the periphery of the mesh frame resonance body is uniformly distributed with the vibration transmission plate in the welding manner; the pneumatic vibrator is fixedly arranged on the mesh frame resonance body; an air inlet in the pneumatic vibrator is connected with a high pressure air controller by a high pressure air pipe; an air outlet in the pneumatic vibrator is discharged by the high pressure air pipe from an air discharging pipe silencer connected with the tail end of the air outlet mesh frame resonance body; the output end of the ultrasonic transducer is connected with the input end of an ultrasonic generator. According to the multi-frequency vibrating screen, three kinds of different frequencies are adopted, and the three frequencies and vibration generated by the three frequencies play different roles in the screening process.
Description
Technical field:
The present invention relates to a kind of multi-frequency screening machine, be specially adapted to material screening and the classification of viscosity large, easy reunion, easily sticky net, network blocking, paste net.
Background technology:
Along with the progress of science and technology, product quality requires more and more higher, and in order to reduce production cost, the raising of production efficiency is particularly important.At present, screening plant is applied widely in the screening treatment industry such as food, chemical industry, medicine, metallurgy, abrasive material, plastics, pottery, glass, coating, new forms of energy.Of a great variety due to screening materials carrying, the factor affecting screening precision and output mainly contains: raw material types, shape, proportion, temperature, humidity, mesh, granular size, particle size distribution etc.Such as synthetic resin (granule, small grain, sphere, powder), coating, pigment, dyestuff (powder or liquid), pharmaceuticals, industry medicine (particle, sugar grain), soap, wood powder, nitre, rubber, pad underfill material, graphite, submicron particle, potter's clay and clay, food processing, new energy materials etc., because powder is thinner, bulk density is less, during screening, between particle, phase mutual friction formation electrostatic is easily reunited, formed spherical, block mesh simultaneously, cause screening efficiency low, frequent draping, cost can be caused to increase, increase staff labor intensity, in order to solve above-mentioned Problems existing, usually, the method implanting external force vibration in screen(ing) machine inside solves, such as ultrasonic wave, bounder, air-flow, hairbrush etc., owing to being subject to characteristic and the frequency restriction of structure and various clear net mode, can not implant simultaneously, can not effectively solve as reunited, stifled, stick with paste the phenomenon of mesh.As increased earthing or grounding means on screen(ing) machine body, fricative electrostatic when still can not discharge material movement, and the reunion caused, still cause material to block up the phenomenon of sticking with paste screen cloth mesh, reunion ball moves on screen cloth, and production efficiency is low, and cost increases, and labour intensity is high.
Summary of the invention:
Task of the present invention proposes a kind of to strengthen the saturating net rate of material, reaches not network blocking, do not stick with paste net, do not reunite, a kind of Multi-frequency vibration sieve that material is evenly distributed.
Task of the present invention completes like this, a kind of Multi-frequency vibration sieve, it comprises sieve nest, rack, screen cloth and vibrating motor, it is characterized in that: after the formation bonding with screen cloth of the rack on screen(ing) machine entirety, it is connected with pneumatic vibrator and ultrasonic transducer, described rack is by rack ectosome, rack resonating body, pass vibration plate welding to form, the periphery of rack resonating body is uniformly distributed and is welded with biography vibration plate, described pneumatic vibrator is fixed in rack resonating body, air inlet on described pneumatic vibrator is connected with gases at high pressure controller by high-pressure air pipe, the exhaust pipe silencer that gas outlet on pneumatic vibrator is connected by end by high-pressure air pipe is discharged, the output of described ultrasonic transducer is connected with the input of supersonic generator by data wire.Described biography vibration plate one end is connected with rack resonating body, and its other end is connected with rack ectosome, and described biography vibration plate is a lath, and the centre of lath is provided with one or more hole.The shape of described rack resonating body is circle, square, snail like, ellipse, rectangle, and the shape of rack is described above any one.Described pneumatic vibrator be by high-strength screw and nut assembling plain cushion and spring pad be fixed in rack resonating body, pneumatic vibrator install quantity at least more than one, the air of the Constant Voltage Clean that the pressure-air of pneumatic vibrator is provided by gases at high pressure controller is input to the air inlet of pneumatic vibrator by high-pressure air pipe, air propels vibrator vibrates, and gas is discharged by the outlet of pneumatic vibrator.Described ultrasonic transducer is provided with connecting thread to be connected with rack resonating body, or extraction screen(ing) machine outside is screwed, and ultrasonic transducer is provided with data line interface, the ultrasonic frequency of its production of supersonic generator 35KHz-38KHz.
The present invention has following effect: the technical program passes through three kinds of different frequencies, and in screening process, the vibration of these three frequencies and generation thereof serves different effects.The frequency shift of screening machine self movement locus of material, makes material regular movement and rolling on wire side.Material all has an opportunity to contact wire side on wire side.The vibration that pneumatic vibrator produces, makes material avoid reunion, adhesion, paste net.The vibration that ultrasonic wave produces, makes fine powder can not adhere to mesh wire through upper, so not network blocking.Three different vibration frequencies and various amplitude superpose mutually simultaneously, can produce different frequencies and amplitude, the material acceleration of screening is constantly changed.Running orbit is constantly change among a small circle, so overcome a difficult problem for the classification of the various material not easily sieved, impurity elimination, filtration, decreases particle network blocking, sticks with paste the phenomenon of net, add the saturating net rate of material, greatly improve production efficiency, reduce production cost.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of technical scheme; Fig. 2 is Figure 1A portion schematic enlarged-scale view; Fig. 3 is rack resonator structure schematic diagram; Fig. 4 is the another kind of embodiment of rack resonating body; Fig. 5 is rack resonating body snail like structural representation; Fig. 6 is the structural representation of rack resonating body ellipse; Fig. 7 is rack resonating body rectangle structure schematic diagram; Fig. 8 is the structural representation of Figure 1B portion pneumatic vibrator and rack resonating body; Fig. 9 is the connection layout of pneumatic vibrator and gases at high pressure; Figure 10 is Fig. 1 C portion structure for amplifying schematic diagram; Figure 11 is ultrasonic wave and ultrasonic transducer structure schematic diagram.
Drawing illustrates: 1, sieve nest; 2, rack; 3, pneumatic vibrator; 3-1, high-strength screw; 3-2, exhaust outlet; 3-3, air inlet; 3-4, exhaust pipe silencer; 4, vibrating motor; 5, gases at high pressure controller; 6, screen cloth; 7, ultrasonic transducer; 8, data wire; 9, high-pressure air pipe; 10, supersonic generator; 10-1, power line; 11, rack resonating body; 11-1, screw thread; 12, vibration plate is passed; 13, rack ectosome; 14, locking clamp.
Detailed description of the invention:
The technical program, according to the feature of material characteristic and screening process, solves existing screening machine because powder is comparatively thin, bulk density is less, during screening, easily reunites, is formed spherical, block mesh, needs the problem of frequent draping simultaneously.As shown in Figure 1, multifrequency screening machine mainly contains sieve nest 1 to specific embodiment, rack 2, vibrating motor 3, screen cloth 6 are formed.Described rack 2 and screen cloth 6 to be gluingly connected together with strong, and make it form one on the whole, described strong glue selects AB glue KD-504A or AS406 glue.Screening machine is itself by vibrating motor 4 or the imbalance adopting the upper and lower eccentric block of vibrator, be level, vertical, the compound motion that tilts by the conversion of motion of motor or vibrator, again this is moved through rack and pass to screen cloth face, make material regular mobile rolling on wire side, make to discharge through regular edge or the one end of moving to of the material of screen cloth, thus play the effect of screening filtration.The connection of described above is each parts of existing screening machine, does not describe in detail.
Does description about frequency and amplitude eliminate? it is made up of three kinds of different vibration frequencies, both the vibration frequency of screen(ing) machine vibrating motor or vibrator generation, for changing the flow direction of material, frequency is generally at 700-3000 beat/min, amplitude 3-6mm, the second is the vibration frequency that pneumatic vibrator produces, its given frequency is at 10000-30000 beat/min, amplitude 0.3-0.7mm, for increasing the acceleration of material on screen cloth face, solve reunion, adhesion, paste hole, the better distribution of differentiation material on wire side.The third is the short arc ultrasonic frequency implanting a 35KHz-38KHz on wire side, and the about 0.03mm of its amplitude, to increase kinergety and the acceleration of material near screen cloth string diameter, makes material not adhere to string diameter, thus plays the object of not network blocking
The technical program as shown in Figure 1, after rack on screen(ing) machine formation bonding with screen cloth entirety, it is connected with pneumatic vibrator 3, ultrasonic transducer 7, the vibration of sieve nest 1, the vibration of pneumatic vibrator 3 and hyperacoustic vibration are delivered on screen cloth 6 by rack 2, and described rack 2 is fixed on (as shown in Figure 2) on sieve nest by locking clamp 14.
The structure of described rack 2 is as Fig. 3, 4, 5, shown in 6 and Fig. 7, rack is welded by rack ectosome 13 rack resonating body 11 and biography vibration plate 12 to form, furtherly: the periphery of rack resonating body 11 is uniformly distributed to be welded with and passes vibration plate 12, furtherly: described biography vibration plate one end is connected with rack resonating body, its other end is connected with rack ectosome 13, connected mode can adopt welding, described biography vibration plate is a lath, the centre of lath is provided with one or more hole, object pneumatic vibrator is played to the effect of damping and buffering, shape such as Fig. 3 of described rack resonating body is circular, Fig. 4 is in square, Fig. 5 is snail like, Fig. 6 is oval, Fig. 7 is rectangle, the shape of rack is described above any one.
Described pneumatic means as shown in Figure 8 and Figure 9, pneumatic vibrator 3 be by high-strength screw 3-1 and nut assembling plain cushion and spring pad be fixed in rack resonating body, the installation quantity of pneumatic vibrator is that the vibration force size of area, structure and pneumatic vibrator according to rack is arranged, at least more than one, furtherly, if rack resonating body needs installation 2 pneumatic vibrators 3, installation site can be diagonal angle arrangement.Air inlet 3-3 on described pneumatic vibrator is connected with gases at high pressure controller 5 by high-pressure air pipe 9, the exhaust pipe silencer 3-4 that exhaust outlet 3-2 on pneumatic vibrator is connected by end by high-pressure air pipe 9 discharges, and described high-pressure air pipe 9 is welded to (as shown in Figure 9) on sieve nest 1 by tracheae connector.The air of the Constant Voltage Clean that the pressure-air of pneumatic vibrator is provided by gases at high pressure controller 5, is input to the air inlet of pneumatic vibrator 3 by high-pressure air pipe 9, air propels vibrator vibrates, and gas is discharged by the outlet of pneumatic vibrator.
Described ultrasonic transducer 7 as shown in Figure 10 and Figure 11, ultrasonic transducer is provided with connecting thread 11-1 to be connected with rack resonating body, or extraction screen(ing) machine outside is screwed, furtherly, ultrasonic transducer is one is the device of kinetic energy by electric energy conversion, its inner ceramic sheet produces dilation and forms vibration under the effect of electric current, its electric energy comes from ultrasonic transducer 10, the output of described ultrasonic transducer is connected with the input of supersonic generator by data wire 8, furtherly, ultrasonic transducer is provided with data line interface 8, ultrasonic transducer is according to the area of rack, the watt level of structure and ultrasonic transducer at least adopts one or more being evenly distributed in rack resonating body.The ultrasonic frequency of its production of described supersonic generator 35KHz-38KHz, ultrasonic transducer 7 is input to by data wire 8, the vibration that ultrasonic transducer produces is delivered to by rack resonating body 11 on the wire side of screen cloth 6, by passing vibration plate 12(, damping, buffering effect is started to pneumatic vibrator 3 simultaneously, ultrasonic amplitude is less relative to pneumatic vibrator, the effect of transmitting vibrations is played at this) be delivered to rack ectosome 13, whole wire side all can be vibrated, supersonic generator 10 is positioned over outside screen(ing) machine and does not participate in vibration, described ultrasound data lines 8, pneumatic vibrator high-pressure air pipe 9 is screwed on sieve nest.
The vibration of screening machine is provided by vibrating motor (or vibrator), the vibration of pneumatic vibrator is provided by pneumatic vibrator by gases at high pressure, hyperacoustic vibration is provided by sonotrode, these three vibrations all have respective vibration frequency and amplitude, play effects different separately, their superposition simultaneously can change again their intrinsic frequency and amplitude, and produce new frequency and amplitude, continuous change Material moving track and acceleration, make material saturating net fast, reach anti-blocking, anti-object of sticking with paste net, to improve screening efficiency.
Claims (5)
1. a Multi-frequency vibration sieve, it comprises sieve nest, rack, screen cloth and vibrating motor, it is characterized in that: after the formation bonding with screen cloth of the rack on screen(ing) machine entirety, it is connected with pneumatic vibrator and ultrasonic transducer, described rack is by rack ectosome, rack resonating body, pass vibration plate welding to form, the periphery of rack resonating body is uniformly distributed and is welded with biography vibration plate, described pneumatic vibrator is fixed in rack resonating body, air inlet on described pneumatic vibrator is connected with gases at high pressure controller by high-pressure air pipe, the exhaust pipe silencer that gas outlet on pneumatic vibrator is connected by end by high-pressure air pipe is discharged, the output of described ultrasonic transducer is connected with the input of supersonic generator by data wire.
2. a kind of Multi-frequency vibration sieve according to claim 1, is characterized in that: described biography vibration plate one end is connected with rack resonating body, and its other end is connected with rack ectosome, and described biography vibration plate is a lath, and the centre of lath is provided with one or more hole.
3. a kind of Multi-frequency vibration sieve according to claim 2, is characterized in that: the shape of described rack resonating body is circle, square, snail like, ellipse, rectangle, and the shape of rack is described above any one.
4. a kind of Multi-frequency vibration sieve according to claim 1, it is characterized in that: described pneumatic vibrator be by high-strength screw and nut assembling plain cushion and spring pad be fixed in rack resonating body, pneumatic vibrator install quantity at least more than one, the air of the Constant Voltage Clean that the pressure-air of pneumatic vibrator is provided by gases at high pressure controller is input to the air inlet of pneumatic vibrator by high-pressure air pipe, air propels vibrator vibrates, and gas is discharged by the outlet of pneumatic vibrator.
5. a kind of Multi-frequency vibration sieve according to claim 1 or 4, it is characterized in that: described ultrasonic transducer is provided with connecting thread and is connected with rack resonating body, or extraction screen(ing) machine outside is screwed, ultrasonic transducer is provided with data line interface, the ultrasonic frequency of its production of supersonic generator 35KHz-38KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001014.4A CN105499122A (en) | 2016-01-04 | 2016-01-04 | Multi-frequency vibrating screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001014.4A CN105499122A (en) | 2016-01-04 | 2016-01-04 | Multi-frequency vibrating screen |
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| CN105499122A true CN105499122A (en) | 2016-04-20 |
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| CN201610001014.4A Pending CN105499122A (en) | 2016-01-04 | 2016-01-04 | Multi-frequency vibrating screen |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670098A (en) * | 2016-12-02 | 2017-05-17 | 新乡市振英机械设备有限公司 | Ultrasonic transducer external spin vibration sieve |
| CN106807630A (en) * | 2017-03-13 | 2017-06-09 | 江苏宝山重型机械制造有限公司 | A kind of ultrasonic activation sieves fastener |
| CN107029990A (en) * | 2017-05-08 | 2017-08-11 | 新乡市振英机械设备有限公司 | A kind of magnetic rotation ultrasonic activation sieve |
| CN107159569A (en) * | 2017-06-23 | 2017-09-15 | 新乡市东振机械制造有限公司 | A kind of gas shakes formula vibratory sieve |
| CN107282435A (en) * | 2017-06-23 | 2017-10-24 | 新乡市东振机械制造有限公司 | Gas shakes formula spin vibration sieve |
| CN108622670A (en) * | 2017-03-17 | 2018-10-09 | 中国科学院福建物质结构研究所 | A kind of dust feeder for conveying powder |
| CN108816731A (en) * | 2018-06-14 | 2018-11-16 | 新乡市振英机械设备有限公司 | A kind of ultrasonic activation sieve easy to repair |
| CN109225820A (en) * | 2018-09-30 | 2019-01-18 | 西安赛隆金属材料有限责任公司 | A kind of pneumatic vibrating screen |
| CN109731781A (en) * | 2018-12-28 | 2019-05-10 | 郑州铄维智能科技有限公司 | Regulation method and regulation device based on ultrasonic screening system |
| CN110081679A (en) * | 2019-04-01 | 2019-08-02 | 昆明理工大学 | A kind of dry vibration screening device of soil body particle automation |
| CN112371481A (en) * | 2020-11-20 | 2021-02-19 | 中矿金业股份有限公司 | Efficient screening device and screening method for fine materials |
| CN112403902A (en) * | 2020-10-29 | 2021-02-26 | 通道马龙茶业有限责任公司 | Tea leaf sieve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106670098A (en) * | 2016-12-02 | 2017-05-17 | 新乡市振英机械设备有限公司 | Ultrasonic transducer external spin vibration sieve |
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| CN107029990A (en) * | 2017-05-08 | 2017-08-11 | 新乡市振英机械设备有限公司 | A kind of magnetic rotation ultrasonic activation sieve |
| CN107159569A (en) * | 2017-06-23 | 2017-09-15 | 新乡市东振机械制造有限公司 | A kind of gas shakes formula vibratory sieve |
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| CN108816731A (en) * | 2018-06-14 | 2018-11-16 | 新乡市振英机械设备有限公司 | A kind of ultrasonic activation sieve easy to repair |
| CN109225820A (en) * | 2018-09-30 | 2019-01-18 | 西安赛隆金属材料有限责任公司 | A kind of pneumatic vibrating screen |
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| CN109731781A (en) * | 2018-12-28 | 2019-05-10 | 郑州铄维智能科技有限公司 | Regulation method and regulation device based on ultrasonic screening system |
| CN110081679A (en) * | 2019-04-01 | 2019-08-02 | 昆明理工大学 | A kind of dry vibration screening device of soil body particle automation |
| CN112403902A (en) * | 2020-10-29 | 2021-02-26 | 通道马龙茶业有限责任公司 | Tea leaf sieve |
| CN112371481A (en) * | 2020-11-20 | 2021-02-19 | 中矿金业股份有限公司 | Efficient screening device and screening method for fine materials |
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Application publication date: 20160420 |