CN103286065B - Large scatter radius vibratory sieve - Google Patents
Large scatter radius vibratory sieve Download PDFInfo
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- CN103286065B CN103286065B CN201310239803.8A CN201310239803A CN103286065B CN 103286065 B CN103286065 B CN 103286065B CN 201310239803 A CN201310239803 A CN 201310239803A CN 103286065 B CN103286065 B CN 103286065B
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- screen frame
- sieve plate
- sieve
- single shaft
- screen surface
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Abstract
A kind of large scatter radius vibratory sieve, belongs to vibration screening machinery field, sticks with paste sieve aperture, the problem that screening percentage is low to solve material in moist fine particulate coal dry deep-sizing.Form primarily of screen frame, compass screen surface, vibrator, shock-absorbing spring, bearing and transmission gear for electric motor.Screen frame is provided with two single shaft vibrators, and be arranged on 1/3rd places of screen frame length direction apart from screen frame two ends respectively, the spindle centerline place plane of two single shaft vibrators is parallel to compass screen surface, and direction of rotation is contrary; Overall compass screen surface is made up of multi-disc polyurethane or rubber sieve plate, the two ends of sieve plate are fixed on the tie-beam of screen frame, middle contact with sieve plate by elastic component by a spandrel girder is supported, and the two ends of spandrel girder are fixed on the side plate of screen frame by rubber spring and fastener.Compass screen surface can produce the motion state of " breathing " under the effect of supporting traverse, has self-cleaning function and screening efficiency high, is applicable to the dry deep-sizing of moist fine particulate coal.
Description
Technical field
The invention belongs to vibration screening machinery field, mainly relate to and solve material paste sieve aperture in moist fine particulate coal dry deep-sizing, make treating capacity little, the large scatter radius vibratory sieve that screening percentage is low.
Background technology
Screening is the dry deep-sizing (3mm ~ 13mm) of an important step, particularly moist fine particulate coal of coal processing and utilization process, is one of hot issue of world today's screening Science and Technology research.Because coal is in recovery process, because the reasons such as coal seam infiltration, the dust-proof water spray in down-hole and other mismanagement cause raw coal free moisture more than 7%, this moist fine particulate coal is because granularity is little, specific area is large, add the existence of the composition such as free moisture and clay, cause bonding mutually agglomerating, and be attached on compass screen surface and block sieve aperture, screening effect is deteriorated, and screening process worsens.Carry out extensive research for this problem both at home and abroad, theory and practice has achieved gratifying achievement.Current this respect sieving machine has piano wire screen, flip-flow screening machine or vibration sieve etc., is greater than in the screening operation of more than 8mm material achieves significant effect in partition size, but when sieving about 3mm-6mm grade material, still occurs material plug-hole phenomenon.
Summary of the invention
The object of this invention is to provide a kind of large scatter radius vibratory sieve, this vibratory sieve effectively can solve the problem of feed blocking sieve aperture in wetted coal fines charcoal dry deep-sizing, improves the screening efficiency of vibratory sieve.
The present invention is achieved by the following measures, screen(ing) machine forms primarily of screen frame, compass screen surface, vibrator, shock-absorbing spring, bearing and transmission gear for electric motor, it is characterized in that: on screen frame, be provided with two single shaft vibrators, be arranged on 1/3rd places of screen frame length direction apart from screen frame two ends respectively, the spindle centerline place plane of two single shaft vibrators is parallel to compass screen surface, and on two single shaft vibrators, the direction of rotation of main shaft is contrary; Described overall compass screen surface is made up of multi-disc polyurethane or rubber sieve plate, the two ends of every sheet sieve plate are fixed on adjacent two tie-beams of screen frame, middle contact with sieve plate by elastic component by a spandrel girder is supported, and the two ends of spandrel girder are fixed on the side plate of screen frame by rubber spring and fastener.
Be provided with adjustable spandrel girder contacts degree of tightness state device with every sheet sieve plate on the fastener means, the tension force of sieve plate and whole compass screen surface is adjusted with this, compass screen surface is made to obtain best " breathing " state, the material of blocking sieve plate is cleared up, realize more effectively sieving material, and then improve the screening efficiency of vibratory sieve.The degree of tightness state that spandrel girder contacts with every sheet sieve plate also can be realized by the shear spring changing different-stiffness.Between sieve plate and screen frame side plate, be provided with the sealing device that is flexible coupling, prevent vibration from interfering and leak material.
The invention has the beneficial effects as follows, two single shaft vibrator spans on vibratory sieve are far away, on two single shaft vibrators, the direction of rotation of main shaft is contrary, and its mounting arrangements can make the force action line of generation perpendicular to compass screen surface, and the penetration capacity of material to compass screen surface is strong, scatter radius is large; In addition, compass screen surface while with vibrator vibration, can also produce the motion state of " breathing ", have self-cleaning function, can effectively remove the material be stuck in sieve aperture, make that the treating capacity of vibratory sieve increases, screening efficiency significantly improves under load-bearing beam action.Can be applicable to the dry deep-sizing of moist fine particulate coal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, and Fig. 2 is the scheme of installation of compass screen surface, and Fig. 3 is the A-A sectional view of Fig. 1 and the connection diagram of spandrel girder and screen frame.In figure, 1 be screen frame, 2 are compass screen surfaces, 3 are tie-beams, 4 are spandrel girders, 5 are single shaft vibrators, 6 are shock-absorbing springs, 7 are bearings, 8 are elastic components, 9 are sieve plates, 10 are fasteners, 11 are rubber springs, 12 are side plates, 13 is the sealing devices that are flexible coupling.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are described, accompanying drawing is double deck screen vibration screen, forms primarily of screen frame 1, compass screen surface 2, vibrator, shock-absorbing spring 6, bearing 7 and transmission gear for electric motor.Screen frame 1 is provided with two single shaft vibrators 5, is arranged on 1/3rd places of screen frame 1 length direction apart from screen frame two ends respectively; Screen frame length 6 meters, two vibrators lay respectively at apart from, 2 meters, screen frame two ends; The spindle centerline place plane of two single shaft vibrators 5 is parallel to compass screen surface 2, and on two single shaft vibrators 5, the direction of rotation of main shaft is contrary.Overall compass screen surface 2 is made up of multi-disc polyurethane sieve plate 9, the two ends of every sheet sieve plate 9 are fixed on adjacent two tie-beams 3 of screen frame 1, centre contacts support by elastic component 8 with sieve plate 9 by a spandrel girder 4, and the two ends of spandrel girder 4 are fixed on the side plate 12 of screen frame 1 by rubber spring 11 and fastener 10.On the fastener 10 that spandrel girder 4 is connected with screen frame 1, be processed with microscler connecting hole, and fixed by bolt, be convenient to the degree of tightness state that adjustment spandrel girder contacts with every sheet sieve plate.The tension force of sieve plate and whole compass screen surface is adjusted, and compass screen surface obtains best " breathing " state, clears up, realize more effectively sieving material to the sieve plate of blocking, and then improves the screening efficiency of vibratory sieve.The sealing device 13 that is flexible coupling preventing from vibrating and interfere and leak and expect is provided with between sieve plate 9 and screen frame side plate 12.
Claims (2)
1. a large scatter radius vibratory sieve, primarily of screen frame, compass screen surface, single shaft vibrator, shock-absorbing spring, bearing and transmission gear for electric motor composition, it is characterized in that: screen frame (1) on be provided with two single shaft vibrators (5), be arranged on respectively screen frame (1) length direction apart from 1/3rd places at screen frame two ends, (2) two single shaft vibrators spindle centerline place plane is (5) parallel to compass screen surface, the direction of rotation that (5) two single shaft vibrators go up main shaft is contrary, (9) (2) described compass screen surface be made up of multi-disc polyurethane or rubber sieve plate, every sheet sieve plate two ends are (9) fixed on screen frame adjacent two tie-beams (1) and (3) go up, middle (4) (8) contact with sieve plate by elastic component by a spandrel girder is supported, (12) the side plate that (10) (11) spandrel girder two ends be (4) fixed on screen frame with fastener by rubber spring is gone up, fastener (10) on be provided with adjustable spandrel girder and (4) (9) contact the device of degree of tightness state with every sheet sieve plate.
2. large scatter radius vibratory sieve according to claim 1, is characterized in that: sieve plate (9) and screen frame side plate (12) between be provided with and be flexible coupling sealing device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310239803.8A CN103286065B (en) | 2013-06-18 | 2013-06-18 | Large scatter radius vibratory sieve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310239803.8A CN103286065B (en) | 2013-06-18 | 2013-06-18 | Large scatter radius vibratory sieve |
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| Publication Number | Publication Date |
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| CN103286065A CN103286065A (en) | 2013-09-11 |
| CN103286065B true CN103286065B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310239803.8A Active CN103286065B (en) | 2013-06-18 | 2013-06-18 | Large scatter radius vibratory sieve |
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| CN (1) | CN103286065B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108816741A (en) * | 2018-08-03 | 2018-11-16 | 鞍山重型矿山机器股份有限公司 | Exciting force is oriented parallel to the flip flop screen of compass screen surface |
| CN111842125A (en) * | 2020-08-08 | 2020-10-30 | 鞍山重型矿山机器股份有限公司 | Large screening machine with self-synchronous synthetic linear track of single-shaft vibration exciter |
| CN114535069A (en) * | 2022-03-11 | 2022-05-27 | 中国矿业大学 | Dual excitation screening apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB239941A (en) * | 1924-06-19 | 1925-09-21 | Wilhelm Seltner | Improvements in and relating to apparatus for the grading or sorting of materials |
| AT379088B (en) * | 1984-02-10 | 1985-11-11 | Binder Co Ag | SCREEN DEVICE |
| CN100525934C (en) * | 2004-03-05 | 2009-08-12 | 鞍山重型矿山机器股份有限公司 | Amplitude descending screening method and vibrating screen |
| CN102284417A (en) * | 2011-08-16 | 2011-12-21 | 鞍山重型矿山机器股份有限公司 | Vibrating screen with floating screening surface |
| CN203316381U (en) * | 2013-06-18 | 2013-12-04 | 鞍山重型矿山机器股份有限公司 | High-projection-intensity vibration screen |
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| CN103286065A (en) | 2013-09-11 |
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Effective date of registration: 20210706 Address after: 114051 Liaoning city of Anshan province high tech Zone Anqian Road No. 294 Patentee after: Anshan Anzhong Mining Machinery Co.,Ltd. Address before: Anshan City, Liaoning Province victory road 114042 Lishan District No. 900 Patentee before: ANSHAN HEAVY DUTY MINING MACHINERY Co.,Ltd. |
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