CN207401731U - A kind of Coupled Rigid-flexible elastic rod vibrating screen - Google Patents

A kind of Coupled Rigid-flexible elastic rod vibrating screen Download PDF

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Publication number
CN207401731U
CN207401731U CN201721246305.6U CN201721246305U CN207401731U CN 207401731 U CN207401731 U CN 207401731U CN 201721246305 U CN201721246305 U CN 201721246305U CN 207401731 U CN207401731 U CN 207401731U
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screen
rigid
compass screen
plates
flexible elastic
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CN201721246305.6U
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赵跃民
江海深
乔金鹏
段晨龙
张成勇
刘初升
武继达
王振乾
周恩会
黄龙
潘淼
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Abstract

The utility model discloses a kind of Coupled Rigid-flexible elastic rod vibrating screen, including:The screen box body includes two sieve box side plates being oppositely arranged and Coupled Rigid-flexible elastic rod compass screen surface, and passes through the elastic support being symmetrically arranged on the outside of two sieve box side plates and be mounted on bottom bracket;The Coupled Rigid-flexible elastic bar screen face includes two compass screen surface side plates being oppositely arranged, two compass screen surface baffles, several rigid rods and elastic tube being distributed between two compass screen surface baffles for forming rectangular frame is combined with compass screen surface side plate, and elastic tube is sheathed on the rigid rod between two compass screen surface side plates, the rigid rod both ends extended on the outside of compass screen surface side plate are arranged with fixing bolt.The utility model is simple in structure, it is easy to use, stability and high efficiency efficiently solves the technical problems such as poor, the compass screen surface plug-hole of adhesional wetting materiel grading effect in screening process by Coupled Rigid-flexible elastic rod compass screen surface structure, has many advantages, such as that material loosening, layered effect are good, screening efficiency is high.

Description

A kind of Coupled Rigid-flexible elastic rod vibrating screen
Technical field
The present invention relates to a kind of Coupled Rigid-flexible elastic rod vibrating screens, belong to sieving machine technical field, suitable for damp mass The dry deep-sizing of material.
Background technology
Screening is that bulk material is divided into multiple and different grains according to the size of material particles by compass screen surface sieve pore The process of grade product, can be divided into wet method and dry screening.Screening is still most to have as a kind of method of ancient grain-size classification One of material size sorting technique of effect is widely used in the fields such as coal, metallurgy, oil, chemical industry, building materials, food and environmental protection, It is that many industry productions are responsible for important function in the process.Screening operation is the key link of coal separation-clean coal technology, vibrating screen Because its is simple in structure, screening efficiency is high, treating capacity is big, becomes main screening plant, be usually used in coal classification, predictive desliming, Product dehydrate and de-mediated etc..
Coal high-efficiency classification is the premise that it is effectively sorted, and moist beans dry method is carried out using conventional rigid compass screen surface vibrating screen During deep screening, under the surface tension of water and the collective effect of coal slime adhesion strength, particulate coal is easily bonded agglomerating and sieved Cover film is formed between hole, compass screen surface plug-hole is serious, so as to reduce effective percent opening of compass screen surface and sieving area, reduces and is less than The saturating sieve amount of partition size particle promotes a large amount of particulate coals to fail fully to sieve and discharge into oversize from exhaust end thoroughly, So that the undersize fraction of oversize is high, screening effect is poor, so that a large amount of Bed for Fine Coal are entered in main equipment, and serious shadow The precision and effect of follow-up coal separation technique have been rung, coal preparation plant can not be met and normally produce needs.
The content of the invention
Goal of the invention:In order to overcome the deficiencies in the prior art, the present invention provides a kind of Coupled Rigid-flexible elastic rod and shakes Dynamic sieve, effectively solves that grading effect in adhesional wetting materiel screening process is poor, compass screen surface plug-hole by Coupled Rigid-flexible elastic rod compass screen surface structure Etc. technical problems, have many advantages, such as that material loosening, layered effect are good, screening efficiency is high.
Technical solution:To achieve the above object, the technical solution adopted by the present invention is:
A kind of Coupled Rigid-flexible elastic rod vibrating screen, including screen box body, excitation beam of vibration, reinforcing beam, spandrel girder, elastic support, Bottom bracket;
Wherein, the screen box body includes two sieve box side plates being oppositely arranged and Coupled Rigid-flexible elastic rod compass screen surface, and just Support is realized by being installed on the spandrel girder of bottom between two sieve box side plates in the bottom of soft coupling elastic rod compass screen surface;The exciting Beam, reinforcing beam are arranged in middle and upper part between two sieve box side plates, and vibrator is provided on excitation beam of vibration;The screen box body passes through The elastic support on the outside of two sieve box side plates is symmetrically arranged on bottom bracket;
The Coupled Rigid-flexible elastic bar screen face includes two compass screen surface side plates being oppositely arranged, composition square is combined with compass screen surface side plate Two compass screen surface baffles of shape frame, several rigid rods and elastic tube being distributed between two compass screen surface baffles, and rigid rod is horizontal Through two compass screen surface side plates;The elastic tube is sheathed on the rigid rod between two compass screen surface side plates, and rigid rod penetrates elastic tube Interior composition Coupled Rigid-flexible elasticity sieve bar;The rigid rod both ends extended on the outside of compass screen surface side plate are arranged with fixing bolt, pass through fixation Bolt is realized rigid rod both ends and is fastened, and prevents rigid rod from deviating from compass screen surface in vibration processes.
Further, the round hole of corresponding arrangement, and the diameter < circles of rigid rod are offered on described two compass screen surface side plates The internal diameter of the diameter < elastic tubes in shape hole, to prevent elastic tube from deviating from compass screen surface in vibration processes, stable structure and easy to loading and unloading.
Further, the short 1-5cm of the distance between than two compass screen surface side plates of the length of the elastic tube, convenient for the same of handling When ensure Coupled Rigid-flexible elastic rod compass screen surface screening effect.
Further, the elastic support includes screen box connector, is connected between screen box connector and bottom bracket Shock-absorbing spring, shock-absorbing spring can be metal spring, rubber spring, complex spring etc..
Further, the compass screen surface side plate connects simple and stable structure with compass screen surface baffle by welding or being bolted.
Further, in order to ensure the integral strength of screen box, the reinforcing beam is symmetrically arranged in the feeding end of screen box body And discharge end both sides, and reinforcing beam is cylindrical, both ends are connected fixation with sieve box side plate by flange.
Further, the elastic tube is made of rubber, polyurethane material.
Further, the cross sectional shape of the elastic tube is circular, oval or regular polygon.
Advantageous effect:A kind of Coupled Rigid-flexible elastic rod vibrating screen provided by the invention compared with the prior art, has following Advantage:In screening process, rigid rod can contact the present invention with compass screen surface side plate circular hole and elastic inside pipe wall, and generate mutual Collision, the average value of the acceleration amplitude of rigid rod and elastic tube significantly increase, and promote the loose of material group so that adherency it is thin Grain material is removed from coarse granule surface;The variation of adjacent Coupled Rigid-flexible elastic rod spatial position and the metamorphosis of elastic tube, make It obtains into adjacent spring distance between tie rods and generates variation;Rigid rod and elastic tube generate rotation around its barycenter and compass screen surface side plate center of circular hole, To adhering to agglomerating particle and cover film generates shear action, elastic tube have to the material space behavior force direction being in contact with it with Machine so as to promote the rupture of agglomerating particle and cover film, and promotes hardly possible of the blocking in sieve pore to sieve or hinder particle from sieve pore Middle disengaging, enhances material at the technical issues of efficiently solving poor moist material deep screening process grading effect, compass screen surface plug-hole Loosely, layered effect realizes the high efficiency screening of Wet Coal '.Additionally due to the damping action of elastic tube, it can be to avoid coal Grain and rigid rod direct collision, the coal caused by alleviating screening operation crush.
Description of the drawings
Fig. 1 is a kind of structure diagram of Coupled Rigid-flexible elastic rod vibrating screen of the present invention;
Fig. 2 is a kind of front view of Coupled Rigid-flexible elastic rod vibrating screen of the present invention;
Fig. 3 is a kind of side view of Coupled Rigid-flexible elastic rod vibrating screen of the present invention;
Fig. 4 is a kind of top view of Coupled Rigid-flexible elastic rod vibrating screen of the present invention;
Fig. 5 is the structure diagram of Coupled Rigid-flexible elastic rod compass screen surface in the present invention;
Figure includes:1st, vibrator, 2, excitation beam of vibration, 3, reinforcing beam, 4, screen box body, 5, spandrel girder, 6, Coupled Rigid-flexible bullet Property bar compass screen surface, 6-1, compass screen surface side plate, 6-2, compass screen surface baffle, 6-3, rigid rod, 6-4, elastic tube, 6-5, round hole, 7, elasticity branch Seat, 8, bottom bracket.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1 for a kind of Coupled Rigid-flexible elastic rod vibrating screen, including screen box body 4, excitation beam of vibration 2, reinforcing beam 3, hold Weight beam 5, elastic support 7, bottom bracket 8;
Wherein, the screen box body 4 includes two sieve box side plates being oppositely arranged and Coupled Rigid-flexible elastic rod compass screen surface 6, and Support is realized by being installed on the spandrel girder 5 of bottom between two sieve box side plates in the bottom of Coupled Rigid-flexible elastic rod compass screen surface 6;It is described Excitation beam of vibration 2, reinforcing beam 3 are arranged in middle and upper part between two sieve box side plates, and vibrator 1 is provided on excitation beam of vibration 2;The screen box Body 4 is mounted on by two groups of elastic supports 7 being symmetrically arranged on the outside of two sieve box side plates on bottom bracket 8, and two groups of bullets Property bearing 7 is respectively arranged feeding end and exhaust end in screen box body 4;
The Coupled Rigid-flexible elastic rod compass screen surface 6 includes two compass screen surface side plate 6-1 being oppositely arranged and compass screen surface side plate 6-1 groups Close two compass screen surface baffle 6-2, several rigid rod 6-3 and bullet being distributed between two compass screen surface baffle 6-2 for forming rectangular frame Property pipe 6-4, and rigid rod 6-3 extends transversely through two compass screen surface side plate 6-1;The elastic tube 6-4 is sheathed on two compass screen surface side plate 6-1 Between rigid rod 6-3 on, rigid rod 6-3 penetrates composition Coupled Rigid-flexible elasticity sieve bar in elastic tube 6-4;Extend to compass screen surface side plate Rigid rod 6-3 both ends on the outside of 6-1 are arranged with fixing bolt, and rigid rod 6-3 both ends are realized by fixing bolt and are fastened, are prevented Rigid rod 6-3 deviates from compass screen surface in vibration processes.
In the present embodiment, the round hole 6-5 of corresponding arrangement, and rigid rod 6-3 are offered on described two compass screen surface side plate 6-1 Diameter < round holes 6-5 diameter < elastic tubes 6-4 internal diameter, prevent elastic tube 6-4 from deviating from compass screen surface in vibration processes;Institute State the distance between than two compass screen surface side plate 6-1 of length of elastic tube 6-4 short 1cm (being slightly shorter than).
In the present embodiment, the elastic support includes screen box connector, is connected between screen box connector and bottom bracket Shock-absorbing spring, shock-absorbing spring can be metal spring, rubber spring, complex spring etc..
In the present embodiment, the compass screen surface side plate 6-1 and compass screen surface baffle 6-2 is by welding or being bolted;The reinforcing beam 3 The feeding end of screen box body 4 and discharge end both sides are symmetrically arranged in, and reinforcing beam 3 is cylindrical, both ends pass through flange and sieve The connection of case side plate is fixed.
In the present embodiment, the elastic tube 6-4 is made of rubber, polyurethane material;The section shape of the elastic tube 6-4 Shape is circle.
The specific embodiment of the present invention is as follows:
Screen box 4 vibrates under the drive of vibrator 1, and Coupled Rigid-flexible elastic rod compass screen surface 6 is moved with screen box 4, material by Feeding end is fed through Coupled Rigid-flexible scale elastic vibration sieve, carries out loose, layering, and coarse-grained material is discharged through exhaust end, is become and is produced on sieve Product, fine become undersize through Coupled Rigid-flexible elasticity sieve bar compass screen surface 6.Rigid rod 6-3 and compass screen surface side in screening process Plate circular hole 6-5 and elastic tube 6-4 inner walls can contact, and generate mutually collision, the acceleration of rigid rod 6-3 and elastic tube 6-4 The average value of degree amplitude significantly increases, and promotes the loose of material group so that the fine of adherency is removed from coarse granule surface;Phase The variation of adjacent Coupled Rigid-flexible elastic rod spatial position and the metamorphosis of elastic tube 6-4 so that sieve pore is deformed;Rigid rod 6- 3 and elastic tube 6-4 generates rotation around its barycenter and compass screen surface side plate circular hole 6-5 centers, is generated to adhering to agglomerating particle and cover film Shear action, elastic tube 6-4 have randomness to the material space behavior force direction that is in contact with it, so as to promote agglomerating particle and The rupture of cover film, and difficult sieve or obstruction particle of the blocking in sieve pore is promoted to depart from from sieve pore, efficiently solve damp mass The technical issues of expecting poor deep screening process grading effect, compass screen surface plug-hole enhances material loosening, layered effect, realizes moist The high efficiency screening of coal.Additionally due to the damping action of elastic tube 6-4, can directly touch to avoid coal particles and rigid rod 6-3 It hits, the coal caused by alleviating screening operation crushes.
Along stream direction, Coupled Rigid-flexible elastic bar screen surface side plate circular hole 6-5 diameters, circular hole 6-5 spacing, rigid rod 6-3 are straight Footpath, elastic tube 6-4 internal diameters and outer diameter, rigid rod 6-3 rigidity and elastic tube 6-4 elasticity can be changed according to production status Become.
The above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (8)

1. a kind of Coupled Rigid-flexible elastic rod vibrating screen, which is characterized in that including screen box body (4), excitation beam of vibration (2), reinforcing beam (3), spandrel girder (5), elastic support (7), bottom bracket (8);
Wherein, the screen box body (4) includes two sieve box side plates being oppositely arranged and Coupled Rigid-flexible elastic rod compass screen surface (6), and Support is realized by being installed on the spandrel girder (5) of bottom between two sieve box side plates in the bottom of Coupled Rigid-flexible elastic rod compass screen surface (6); The excitation beam of vibration (2), reinforcing beam (3) are arranged in middle and upper part between two sieve box side plates, and are provided with vibrator on excitation beam of vibration (2) (1);The screen box body (4) is mounted on bottom bracket by being symmetrically arranged in the elastic support (7) on the outside of two sieve box side plates (8) on;
The Coupled Rigid-flexible elastic rod compass screen surface (6) includes two compass screen surface side plates (6-1) being oppositely arranged and compass screen surface side plate (6-1) Combination forms two compass screen surface baffles (6-2) of rectangular frame, several rigid rods being distributed between two compass screen surface baffles (6-2) (6-3) and elastic tube (6-4), and rigid rod (6-3) extends transversely through two compass screen surface side plates (6-1);The elastic tube (6-4) is arranged On rigid rod (6-3) between two compass screen surface side plates (6-1), and extend to the rigid rod (6-3) on the outside of compass screen surface side plate (6-1) Both ends are arranged with fixing bolt.
A kind of 2. Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that described two compass screen surface side plates The round hole (6-5) of corresponding arrangement, and the diameter < bullets of the diameter < round holes (6-5) of rigid rod (6-3) are offered on (6-1) The internal diameter of property pipe (6-4).
A kind of 3. Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that the elastic tube (6-4) The short 1-5cm of the distance between than two compass screen surface side plates (6-1) of length.
A kind of 4. Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that the elastic support (7) Including screen box connector, the shock-absorbing spring being connected between screen box connector and bottom bracket (8).
A kind of 5. Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that the compass screen surface side plate (6- 1) with compass screen surface baffle (6-2) by welding or being bolted.
6. a kind of Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that the reinforcing beam (3) is right Title is arranged in the feeding end of screen box body (4) and discharge end both sides, and reinforcing beam (3) is cylindrical, both ends by flange with Sieve box side plate connection is fixed.
A kind of 7. Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that the elastic tube (6-4) It is made of rubber, polyurethane material.
A kind of 8. Coupled Rigid-flexible elastic rod vibrating screen according to claim 1, which is characterized in that the elastic tube (6-4) Cross sectional shape be circular, oval or regular polygon.
CN201721246305.6U 2017-09-27 2017-09-27 A kind of Coupled Rigid-flexible elastic rod vibrating screen Active CN207401731U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721246305.6U CN207401731U (en) 2017-09-27 2017-09-27 A kind of Coupled Rigid-flexible elastic rod vibrating screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721246305.6U CN207401731U (en) 2017-09-27 2017-09-27 A kind of Coupled Rigid-flexible elastic rod vibrating screen

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107537764A (en) * 2017-09-27 2018-01-05 中国矿业大学 A kind of Coupled Rigid-flexible elastic rod vibratory sieve
CN113477512A (en) * 2021-07-30 2021-10-08 中国矿业大学 Vibrating screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107537764A (en) * 2017-09-27 2018-01-05 中国矿业大学 A kind of Coupled Rigid-flexible elastic rod vibratory sieve
CN107537764B (en) * 2017-09-27 2020-05-22 中国矿业大学 Rigid-flexible coupling elastic rod vibrating screen
CN113477512A (en) * 2021-07-30 2021-10-08 中国矿业大学 Vibrating screen

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