CN1007323B - Screening device for granular materials such as grain and the like - Google Patents
Screening device for granular materials such as grain and the likeInfo
- Publication number
- CN1007323B CN1007323B CN86103732.4A CN86103732A CN1007323B CN 1007323 B CN1007323 B CN 1007323B CN 86103732 A CN86103732 A CN 86103732A CN 1007323 B CN1007323 B CN 1007323B
- Authority
- CN
- China
- Prior art keywords
- screen cloth
- framework
- air
- screen
- screening
- 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.)
- Expired
Links
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Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention belonging to a screening grain technical field can solve the problems of high output and exact operation by a screening equipment. The equipment includes a box-shaped shell (2) which gradually turns small to the bottom end which is provided with a valve (3) used to control a waste material outlet (4); The interior of the shell is provided with a flat and straight screen which is tied on a frame (6). The screen is transversely arranged in a cylindrical inlet (7); after an airflow suspension caused by a pressure or vacuum of the material to be screened is formed, a wall is formed on the internal wall of the shell (2), and a cylindrical outlet (8) of the screening material is arranged on an the opposite wall; the screen is provided with a device (9) for cleaning the top and the lower side of the screen and at least one detection door (21) for detecting the interior of the shell.
Description
The present invention relates to a kind of screening plant that is used for granule materials such as cereal and so on.
The fine graded material of plant-scale screening need fast accurately running, simple in structure, seldom to keep in repair and the effective equipment of high yield can be provided.
Conventional equipment as the granule materials of screening such as cereal comprises the box housing with two juxtaposed walls and bottom, the inlet of a thing to be sieved, one are sized the outlet of thing and the discharging opening of waste discharge thing, described entrance and exit is in the juxtaposed wall, and described discharging opening is arranged in the bottom and is controlled by valve.
United States Patent (USP) 4,251, the valve gear that is provided as can be known in 356 comprises " star " shape blade that radially extends out from drive hub, its terminal is engaged on the inner surface that is in housing bottom cylindricality cell.This class valve can resemble works the vent plug, makes separated material pass through discharging opening.But it does not relate to a screen system and corresponding cleaning plant, and this just is unfavorable for the fine graded of particle.
The objective of the invention is to by provide a kind of be used for as the material of cereal and so on fine graded, especially for the continued operation screening plant of flour mill and cereal and so on material grinding technical process, to reach above-mentioned target.It is simple in structure, and running fast accurately seldom needs repairing and high yield can be provided.
This and other purpose realize by the screening plant that adopts the granule materials such as cereal, it is characterized in that: straight sieve comprises that is prolonged a screen cloth that is attached on the framework, this screen cloth is between inlet and the import obliquely, the result can be blown over described screen cloth by the pressure of air-flow generation or the material material that vacuum suspended, the axle that described framework is parallel to air-flow is fixed and is rotatable, and framework provides suitable inclination angle between described screen cloth and air-flow like this.It is further characterized in that nozzle and cleaning plant is assemblied in the reverse side of clearing up described screen cloth on the framework of described screen cloth that described nozzle is suitable for the compressed air ejection by described screen cloth.This equipment itself or just can provide optimum operation usefulness with other similar devices is supporting, corollary equipment comprises the equipment that a whole set of is applicable to the factory's production capacity of generally milling.
The features and advantages of the present invention from following to the equipment that is used for sieving granular material such as cereal and so on one preferable but and the detailed description of not exclusive embodiment just see obviously.This embodiment but is not limited to accompanying drawing as shown in drawings.In the accompanying drawing:
Fig. 1 be one according to the present invention the partial cutaway schematic of screening plant;
Fig. 2 is the cutaway view of the I-I line along Fig. 1.
With reference to above-mentioned accompanying drawing, numbering 1 is briefly represented the screening plant of a continued operation, be used for the granulometry of fine graded or cereal and so on the material of cereal and so on particle, it comprises one to diminishing box housing 2 in bottom and the control valve parts 3 that are used to control a waste outlet 4, and this valve comprises the valve 5 of a what is called " star " type.One straight screen cloth is arranged in housing 2, do not express in the accompanying drawings, stretch tight on the framework 6 of angle of inclination may, framework 6 is between the outlet 8 of screening material of the inlet 7 of a material to be sieved cylindricality, that by pneumatic floating and cylindricality with screen cloth, outlet 8 is in the juxtaposed wall of housing 2 with described inlet 7, and the axis of the level of being roughly is arranged.
Have screen cleaning device 9 on framework 6 screen parts, cross bar 10a is equipped with at the top that it is included in rectangle sub-frame 10, sub-frame 10 links to each other to be driven with hydraulic shift cylinders 11 and reciprocatingly slides, the piston 12 of hydraulic shift cylinders 11 links to each other with at least one cross bar 10a, when reciprocatingly sliding, by parallel with framework 6 near the operation that is contained in a plurality of nozzles 13 on the sub-frame spray washing agent or compressed air on screen cloth, and each nozzle is connected each other and link to each other with feeder sleeve 14.Framework 6/ screen part lower screen cloth cleaning plant 9 comprises the outside small brushes 15 of a cover mane, is contained on the gypsy chain 16, and driving-chain 16 is driven by sprocket wheel 17, and one is a driving wheel, and another is a driven pulley, and there is a regulating wheel 18 at driving-chain 16 middle parts.
Should note, the inner end of the outlet 8 of the screening material of cylindricality is made of the infundibulate enlarging 19 towards housing 2 inside, its part is hidden by the throttling dividing plate 20 of outlet 8, and housing 2 also has at least one fan to be used to overhaul its inner access door 21.
The operating process of this equipment is as follows: material to be sieved is used make its air-flow that has suspended introduce cylindrical inlet 7, as shown by arrow A.Obviously, any method of a kind of like this air-flow of available formation is for example used ventilation blower, air blast or compressor.
Material is sprayed on the Screening Network that is being supported by framework 6, and framework 6 is installed to such an extent that can make reciprocally swinging, and can place a suitable angle to provide one at as calculated inclination angle between itself and the material jet (arrow B).
Then, through the screening the thrust of a large amount of materials in said flow under by cylindrical outlet 8(arrow C) draw, its amount also can be by dividing plate 20 controls, and the remaining bottom that diminishes gradually that does not fall to housing 2 by the material of screen cloth is measured and is delivered to further treatment process or makes other purposes with valve member 3.
Should be noted that this box housing can make favourable shape so that screening plant can be supporting with other similar devices, comprise some similar devices in unit, each device respectively is equipped with the screen cloth of different sieve meshes to provide one to overlap screening system efficiently.
Find that in actual practicality invention described herein can reach aforementioned purpose fully.
In addition, the present invention can make many remodeling and improvement in same inventive concept.
And equivalent elements replaces on described all (part) equal available techniques.
When enforcement was of the present invention, used material and size all can be decided on demand.
Claims (3)
1, a kind of equipment that is used to sieve as cereal and so on granule materials, comprise have two juxtaposed walls and-the case shells of bottom, the inlet of a thing to be sieved, one is sized the outlet of thing and the discharging opening of waste discharge material, described import and outlet are in the described juxtaposed wall, described discharging opening is arranged in described bottom and is controlled by " star " type valve, it is characterized in that straight sieve comprises that is prolonged a screen cloth that is attached on the framework, this screen cloth places between the described entrance and exit obliquely, produced by air-flow or vacuum institute particles suspended material can be blown over described screen cloth, the axle that described framework is parallel to air-flow is fixed and is rotatable, and such framework has produced suitable inclination angle between described screen cloth and described air-flow; It is further characterized in that nozzle and cleaning plant is assemblied on the framework of described screen cloth to clear up the reverse side of described screen cloth; Described nozzle is suitable for the compressed air ejection and by described screen cloth.
2, device according to claim 1 is characterized in that nozzle is installed on the sub-frame, and this sub-frame is bearing on the described framework also reciprocating by a hydraulic cylinder slidably.
3, device according to claim 1, it is characterized in that being equipped with on the described framework the moving device of chain, being wound with an endless chain result on framework has just had one section section that is parallel to described screen cloth, and cleaning plant is installed on the described chain to clean the lower surface of described screen cloth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8540056A IT1187171B (en) | 1985-06-06 | 1985-06-06 | CONTINUOUS SCREENING DEVICE FOR MATERIALS AT THE END OF GRANULOMETRY, OF THE GRAIN TYPE AND SIMILAR |
| IT40056A/85 | 1985-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86103732A CN86103732A (en) | 1986-12-03 |
| CN1007323B true CN1007323B (en) | 1990-03-28 |
Family
ID=11247312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86103732.4A Expired CN1007323B (en) | 1985-06-06 | 1986-05-31 | Screening device for granular materials such as grain and the like |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1007323B (en) |
| IN (1) | IN162270B (en) |
| IT (1) | IT1187171B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869890A (en) * | 2010-06-29 | 2010-10-27 | 贵阳中化开磷化肥有限公司 | Method for sieving catalyst in conversion process of sulfuric acid production |
| CN106140619B (en) * | 2016-08-23 | 2018-10-02 | 德清县冠利包装材料有限公司 | Vibration separate equipment |
| CN106269510B (en) * | 2016-11-02 | 2018-08-17 | 新乡市振英机械设备有限公司 | The reciprocating automatic net clearing device of airflow shifting machine |
| CN109028764A (en) * | 2018-07-03 | 2018-12-18 | 安徽辰宇机械科技有限公司 | A kind of blended grain drying means |
-
1985
- 1985-06-06 IT IT8540056A patent/IT1187171B/en active
-
1986
- 1986-05-31 CN CN86103732.4A patent/CN1007323B/en not_active Expired
- 1986-06-02 IN IN407/CAL/86A patent/IN162270B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT8540056A1 (en) | 1986-12-06 |
| CN86103732A (en) | 1986-12-03 |
| IN162270B (en) | 1988-04-23 |
| IT1187171B (en) | 1987-12-16 |
| IT8540056A0 (en) | 1985-05-06 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |