CN201446080U

CN201446080U - A vibration sieve

Info

Publication number: CN201446080U
Application number: CN2009200447062U
Authority: CN
Inventors: 邓海仁; 张通达
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-27
Filing date: 2009-05-27
Publication date: 2010-05-05
Anticipated expiration: 2019-05-27

Abstract

The utility model discloses a vibration sieve, which comprises a stand, a vibration sieve body, a tensioning device, a screen mesh and a vibrator, wherein the vibration sieve body is mounted on the stand; the screen mesh is mounted on the vibration sieve body through the tensioning device; the vibrator is connected with the screen mesh. In the utility model, vibration frequency of the can be automatically adjusted at real time based on flow changes of material granule, therefore the screen mesh is effectively prevented from transmogrification and screen clogging, screening quality of urea granule is kept in stable and fluctuation range is reduced greatly. Also, the utility model can be easily operated with no frequent manual intervention, and can effectively prolong equipment service life.

Description

Vibratory sieve

Technical field

The utility model relates to a kind of particle screening treating apparatus, and particularly relevant for a kind of vibratory sieve.

Background technology

Traditional urea vibratory sieve is in carrying out the urea granules screening process, and screen cloth often adopts the braided steel wire net or adopts steel plate towards circular hole, and screen cloth adopts press strip, bolt and sieve nest directly fixing, and vibration frequency is constant.Along with the growth of operation hours, screen cloth is through material bump, and screen cloth deforms, clogging, has a strong impact on sieve performance, makes the material screening quality can not reach technological requirement, in the short time urea vibratory sieve lose stable, sieve function accurately; Simultaneously, the frequent stage of development variation of mass flow because the shaker vibration frequency can not be regulated, causes the material screening quality to fluctuate.This makes traditional urea vibratory sieve stability, poor accuracy, can not satisfy at present growing urea granules screening requirement.This makes traditional urea vibratory sieve maintenance and repair frequent, the operating cost height.Up to the present, also there are not the good substitute products of performance to occur.

The utility model content

The purpose of this utility model is to provide a kind of vibratory sieve, to overcome above-mentioned defective.The utility model kind need not artificial frequent to intervene, easy to use, operating cost is low.

For reaching above-mentioned purpose, the utility model proposes a kind of vibratory sieve, comprise support, vibration sieve nest, tensioning apparatus, screen cloth and vibrator.The vibration sieve nest is installed on above-mentioned support; Screen cloth is installed on above-mentioned vibration sieve nest by tensioning apparatus; Vibrator connects above-mentioned screen cloth.Hole on the wherein above-mentioned screen cloth is the strip hole, and the material movement direction is vertical with strip hole length direction.

In the utility model, vibratory sieve also comprises control system, is electrically connected above-mentioned vibrator, and control system is frequency-changing control system preferably.

In the utility model, vibratory sieve also comprises suspension apparatus, is installed between support and the vibration sieve nest.

Further, vibratory sieve also comprises maintenance door closure and Waste gas outlet, all is installed on the vibration sieve nest.

The utility model can change the vibration frequency of in good time adjusting vibrator within the specific limits according to mass flow, make the material screening quality keep certain stability like this, reduce its fluctuating range greatly, improved the accuracy of screening, satisfied present growing particle screening requirement.

Description of drawings

Fig. 1 is the front view of the utility model one embodiment.

Fig. 2 is the vertical view of vibratory sieve among Fig. 1.

Fig. 3 is the schematic internal view of vibration sieve nest among Fig. 1.

The specific embodiment

For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.

Fig. 1 is the front view of the utility model one embodiment. and Fig. 2 is the vertical view of vibratory sieve among Fig. 1. and Fig. 3 is the schematic internal view of vibration sieve nest among Fig. 1. please also refer to Fig. 1 to Fig. 3, the utility model comprises that support 1, vibration sieve nest 2, tensioning apparatus 4, screen cloth 3 and vibrator 5. vibration sieve nests 2 are installed on support 1. screen clothes 3 and are installed in vibration sieve nest 2. vibrators 5 connection vibration sieve nests 2. present embodiments by tensioning apparatus 4, tensioning apparatus 4 can be the adjustment screw, can be other adjustable tightening members, the utility model does not add any restriction to this yet.

In the present embodiment, vibratory sieve also comprises control system 7, is electrically connected vibrator 5.Further, control system 7 is frequency-changing control systems.Wherein, the concrete element of frequency-changing control system and vibrator 5 and operation principle have in this area and belong to common practise the people of common knowledge, do not repeat them here.

In the utility model, vibratory sieve also comprises suspension apparatus 6, is installed between support 1 and the vibration sieve nest 2.Suspension apparatus 6 can be made up of spring, steel wire rope, spring fastening protection box, adjusting screw(rod), securing member, and for the people who has common knowledge in this area, the structure of suspension apparatus 6 belongs to common practise, does not repeat them here.

In the present embodiment, vibratory sieve also comprises maintenance door closure 8, is installed on the vibration sieve nest 2, when break down in vibration sieve nest 2 inside, opens maintenance door closure 8 and can carry out maintenance work.

In the present embodiment, vibratory sieve also comprises Waste gas outlet 9, is installed on the vibration sieve nest 2, and the discarded class that produces that bumps during the material particles vibration is discharged by Waste gas outlet 9.

In the utility model, screen cloth 3 adopts the thick 304 corrosion resistant plate punchings of 1mm to make, and hole H wherein is the strip hole, and the material movement direction in the vibratory sieve is vertical with strip hole H length direction.In the present embodiment, material is a urea granules, yet the utility model does not add any restriction to this.

The utility model when mounted, the tensioning apparatus 4 that is arranged in vibration sieve nest 2 both sides is with screen cloth 3 expansion of tiling fully, fix by fastening standard component and vibration sieve nest again, when concrete operations, urea granules enters vibration sieve nest 2 from the A mouth, the direction of motion of urea granules is vertical with strip hole H length direction, and the urea granules that meets granularity requirements after the screening is collected through C mouth and powder bucket 10, and the urea granules that does not meet granularity requirements will advance the B mouth and flows out.

In sum, because screen cloth is installed on the vibration sieve nest via tensioning apparatus, when vibratory sieve operated, the vibration frequency of screen cloth was variable like this.And control system is adjusted the vibration frequency of vibrator automatically in good time according to the changes in flow rate of urea granules, can prevent effectively that like this screen cloth from deforming, preventing that screen cloth from stopping up, make the screening quality of urea granules keep certain stability, reduce its fluctuating range greatly, and the utility model need not artificial frequent intervention, easy to use, and can effectively prolong the service life of equipment.

Concrete case study on implementation only is a preferable case study on implementation of the present utility model described in the utility model, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be as technology category of the present utility model.

Claims

1. a vibratory sieve is characterized in that, comprising:

Support;

The vibration sieve nest is installed on above-mentioned support;

Tensioning apparatus;

Screen cloth is installed in the above-mentioned vibration sieve nest by tensioning apparatus; And

Vibrator connects above-mentioned vibration sieve nest.

2. vibratory sieve according to claim 1 is characterized in that, wherein also comprises control system being electrically connected above-mentioned vibrator.

3. vibratory sieve according to claim 2 is characterized in that, wherein above-mentioned control system is a frequency-changing control system.

4. vibratory sieve according to claim 1 is characterized in that, wherein also comprises suspension apparatus, is installed between support and the vibration sieve nest.

5. according to claim 1 or 2 or 3 described vibratory sieves, it is characterized in that, wherein also comprise the maintenance door closure, be installed on the above-mentioned vibration sieve nest.

6. according to claim 1 or 2 or 3 described vibratory sieves, it is characterized in that, wherein also comprise Waste gas outlet, be installed on the above-mentioned vibration sieve nest.

7. according to claim 1 or 2 or 3 described vibratory sieves, it is characterized in that the hole on the wherein above-mentioned screen cloth is the strip hole.

8. vibratory sieve according to claim 7 is characterized in that, material movement direction wherein is vertical with strip hole length direction.