CN102441533B - Air uniform-distribution control system of density separator - Google Patents
Air uniform-distribution control system of density separator Download PDFInfo
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- CN102441533B CN102441533B CN 201110300270 CN201110300270A CN102441533B CN 102441533 B CN102441533 B CN 102441533B CN 201110300270 CN201110300270 CN 201110300270 CN 201110300270 A CN201110300270 A CN 201110300270A CN 102441533 B CN102441533 B CN 102441533B
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Abstract
The invention relates to an air uniform-distribution control system of a density separator. The air uniform-distribution control system comprises an airflow control box, and an embedded groove and an air distribution plate, wherein the embedded groove is formed on the inner wall of the airflow control box; the air distribution plate is positioned in the embedded groove; an opening ratio of the air inlet side of the air distribution plate is larger than those of other areas of the air distribution plate; the airflow control box of the density separator adopts a manner that air enters from the end part; the airflow flow speed of the surface of the air distribution plate close to the air inlet side is lower than that of the surface of the air distribution plate close to the other side; sincethe opening ratio of the air inlet side of the air distribution plate is larger than those of other areas of the air distribution plate, the resistance loss of airflow close to the air inlet side when passing through the air distribution plate is reduced, and the resistance loss of airflow at the other areas is increased; after the airflow passes through the air distribution plate, the airflow field on the surface of the air distribution plate is homogenized, an air outlet at the top of the air uniform-distribution control system is connected with a vibrating sieve plate of the separator, andthe flow speed distribution of the vibrating sieve surface of the separator is finally homogenized, and the separating efficiency of the density separator is improved.
Description
Technical field
The present invention relates to the screening installation that multiple density differs larger solids mixing material, relate in particular to a kind of equal wind control system for density sorter homogenizing compass screen surface airflow field.
Background technology
Density sorter mainly carries out sorting to lightweight thing in the mixture, its efficiency of separation be subjected to compass screen surface cloth wind inhomogeneity affect larger, compass screen surface cloth wind is uneven, must cause the compass screen surface local velocity excessive, local velocity is too small, flow velocity is excessive easily to be made restructuring minute be mixed in the light component to be pulled away, and flow velocity is too small to be not easy again a lightweight thing restructuring and to separate, and therefore how improving compass screen surface cloth wind uniformity is the key of the raising separator efficiency of separation.Tradition separator air intake mode adopts side air admission, and this air intake mode must make air-flow form eddy current at compass screen surface, and eddy current center air-flow velocity is little, and limit wall local velocity is excessive; Traditional sieve plate is the uniform sieve plate of individual layer, and each sieve-plate aperture ratio is identical, and the compass screen surface flow field uniformity is relatively poor.
Summary of the invention
The present invention has overcome deficiency of the prior art, provides a kind of and can improve the inhomogeneity air uniform-distribution control system of density separator of air distribution plate face airflow field.
The present invention is achieved through the following technical solutions:
A kind of air uniform-distribution control system of density separator comprises the air-flow control cabinet, is located at the embedded groove of air-flow control cabinet inwall, is positioned at the air distribution plate of embedded groove, and the percent opening of described air distribution plate air inlet side is greater than other regional percent openings of air distribution plate.
When the air-flow control cabinet of density sorter adopts end air intake mode, the air distribution plate face is lower than opposite side by air inlet sidewind flow velocity, because the percent opening of air distribution plate air inlet side is greater than other regional percent openings of air distribution plate, so that air-flow reduces near the loss of air inlet collateral resistance by air distribution plate the time, other regional drag losseses of air distribution plate increase, behind air distribution plate, air distribution plate face airflow field reaches even, improve air distribution plate face airflow field, and the top outlet inlet of the air-flow control cabinet of this equal wind control system connects the oscillating screen plate of separator, the velocity flow profile of final homogenizing separator vibrating screen surface has improved the efficiency of separation of density sorter.
As a further improvement on the present invention, described air distribution plate comprises two-layer up and down, upper strata air distribution plate and lower floor's air distribution plate are identical, wherein one deck air distribution plate is movable plate, and a side of movable plate is provided with regulating part, by regulating part effective percent opening of movable plate is carried out on-line control, make this equal wind system can adapt to actual operating mode demand, movable plate is used with fixing air distribution plate, can better improve air distribution plate face airflow field, the velocity flow profile of homogenizing separator compass screen surface.
As a further improvement on the present invention, described regulating part comprises bolt, nut, fixture and the connector that is connected with movable plate, movable plate and connector be not at same plane, and connector and fixture are equipped with through hole, and bolt is connected connector by nut with fixture.Nut on tighting a bolt, bolt connection fixture and connector, fixture maintains static, and connector is along with bolt is moved, and then the drive movable plate moves.Adopt this regulating part to realize the movement of movable plate, simple in structure, easily operation.
Further improve as of the present invention, described air distribution plate is formed side by side by the identical cloth pomphus of size.During processing entire cloth aerofoil, because the area of air distribution plate is larger, usually needs with big-and-middle-sized equipment processing, and air distribution plate is processed into big or small identical polylith cloth pomphus, the cloth pomphus is formed by connecting side by side, be convenient to air distribution plate processing, inspect and change.
Further improve as of the present invention, described cloth pomphus is followed successively by 35%≤ε from the percent opening of air inlet side
1≤ 40%, 30%≤ε
2≤ 35%, 25%≤ε
n≤ 30%(n 〉=3).Adopt above-mentioned percent opening, so that the compass screen surface wind speed deviation of upper strata air distribution plate is in 1%, for the separation operation of density sorter provides uniform and stable flow field.
Further improve as of the present invention, described air-flow control cabinet adopts end air intake, top air-out.Adopt the end air intake, eliminated the vortex phenomenon of compass screen surface air-flow, be beneficial to the even of flow field.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing at A place among Fig. 1;
Fig. 3 is the air distributor structure schematic diagram;
Fig. 4 is the profile of Fig. 3;
Fig. 5 is before wind distributing hole moves and the structural representation after mobile.
Wherein: 1 is the air-flow control cabinet, and 2 is air distribution plate, and 3 is regulating part, and 4 is embedded groove, and 5 is movable plate, and 6 is connector, and 7 is nut, and 8 is bolt, and 9 is fixture.
The specific embodiment
Specify the present invention below in conjunction with accompanying drawing.
" percent opening " of the present invention refers to the ratio (%) of the wind distributing hole gross area and air distribution plate area; " effectively percent opening " refers to the effective ratio (%) of crossing wind area and air distribution plate area of wind distributing hole.
Referring to Fig. 1, Fig. 2 and Fig. 3, air uniform-distribution control system of density separator of the present invention, comprise the end air intake, the air-flow control cabinet 1 of top air-out, described end air intake refers to the left side air intake (as shown in Figure 1) from air-flow control cabinet 1, air-flow control cabinet 1 also comprises shell body, the inwall of air-flow control cabinet 1 is provided with embedded groove 4, embedded groove 4 can be channel-section steel, channel-section steel is fixedly connected with air-flow control cabinet 1 by welding, air distribution plate 2 is positioned at the inboard of channel-section steel, air distribution plate 2 offers equal-sized circular wind distributing hole, the percent opening of air distribution plate air inlet side is greater than other regional percent openings of air distribution plate, air distribution plate 2 comprises two-layer up and down, upper strata air distribution plate and lower floor's air distribution plate are identical, and the up and down overlapping placement of two layers of cloth aerofoil, and wherein one deck air distribution plate is movable plate, movable plate can be selected arbitrarily with the mutual alignment of the air distribution plate of fixing, and a side of movable plate is provided with to regulate the regulating part 3 of this layer air distribution plate move left and right.
Regulating part 3 comprise bolt 8, nut 7, fixture 9 and with movable plate 5 connectors 6 connected vertically, fixture 9 is fixedly connected with the shell body of air-flow control cabinet 1, connector 6 is equipped with through hole with fixture 9, and bolt 8 passes through hole, and bolt 8 is connected connection by nut 7 with connector 6 with fixture.Tight a bolt nut 7 on 8, bolt 8 connection fixtures 9 and connector 6, fixture 9 maintains static, and connector 6 is along with bolt 8 is moved, and then drives movable plate 5 and move.
During preferred n=5, the percent opening ε of cloth pomphus is ε
1=40, ε
2=35, ε
3=30, ε
4=30, ε
5=30.
In order to make air distribution plate adapt to actual operating mode demand, effective percent opening of movable plate is carried out on-line fine.Fastening nut moves movable plate, and the displacement L that is subjected to displacement according to movable plate tries to achieve effective percent opening ε, moves perforate excessive effects figure in conjunction with movable plate shown in Figure 5, and the computing formula of the effective percent opening ε of each cloth pomphus is as follows in the movable plate:
,
ε
iRepresent the actual percent opening of each cloth pomphus;
Wherein: r is the radius of wind distributing hole, R
0The domain of definition of expression perforate radius r, 0＜r≤R
0
L=0, two plates overlap, and effective percent opening of movable plate is maximum; L=2R
0, effective percent opening of movable plate is 0.
According to different operating modes, movable plate is finely tuned, calculate effective percent opening of each cloth pomphus; Initial position, two plates overlap, and when compass screen surface air-flow skewness, regulate the movable plate position, further improve the uniformity of air distribution plate compass screen surface airflow field.
Certainly, above only is concrete exemplary applications of the present invention, and protection domain of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (4)
1. air uniform-distribution control system of density separator, comprise air-flow control cabinet (1), be located at the embedded groove (4) of air-flow control cabinet (1) inwall, be positioned at the air distribution plate (2) of embedded groove (4), it is characterized in that the percent opening of described air distribution plate (2) air inlet side is greater than other regional percent openings of air distribution plate;
Described air distribution plate (2) comprises two-layer up and down, and upper strata air distribution plate and lower floor's air distribution plate are identical, and wherein one deck air distribution plate is movable plate, and a side of movable plate is provided with regulating part (3);
Described regulating part (3) comprises bolt (8), nut (7), fixture (9) and the connector (6) that is connected with movable plate (5), movable plate (5) and connector (6) be not at same plane, connector (6) is equipped with through hole with fixture (9), and bolt (8) is connected 9 with connector (6) with fixture by nut (7)) connect.
2. air uniform-distribution control system of density separator according to claim 1 is characterized in that described air distribution plate (2) is formed side by side by the identical cloth pomphus of size.
3. air uniform-distribution control system of density separator according to claim 2 is characterized in that described cloth pomphus is followed successively by 35%≤ε from the percent opening of air inlet side
1≤ 40%, 30%≤ε
2≤ 35%, 25%≤ε
n≤ 30%, n 〉=3.
4. air uniform-distribution control system of density separator according to claim 1 is characterized in that described air-flow control cabinet (1) adopts end air intake, top air-out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110300270 CN102441533B (en) | 2011-09-30 | 2011-09-30 | Air uniform-distribution control system of density separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110300270 CN102441533B (en) | 2011-09-30 | 2011-09-30 | Air uniform-distribution control system of density separator |
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| Publication Number | Publication Date |
|---|---|
| CN102441533A CN102441533A (en) | 2012-05-09 |
| CN102441533B true CN102441533B (en) | 2013-09-18 |
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|---|---|---|---|
| CN 201110300270 Active CN102441533B (en) | 2011-09-30 | 2011-09-30 | Air uniform-distribution control system of density separator |
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| CN103697746B (en) * | 2013-12-31 | 2015-09-09 | 北京七星华创电子股份有限公司 | A kind of heat exchanger flow equalizer |
| CN104325574A (en) * | 2014-09-30 | 2015-02-04 | 长沙中联重科环卫机械有限公司 | Garbage sorting equipment |
| CN111389729A (en) * | 2020-04-03 | 2020-07-10 | 宁夏和兴碳基材料有限公司 | Upgrading processing grading device and method for micro powder |
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| CN1907551A (en) * | 2005-08-01 | 2007-02-07 | 陈翼孙 | Micro bubble generation device |
| CN2868458Y (en) * | 2005-08-26 | 2007-02-14 | 杨国华 | Coal classifying device |
| CN202490780U (en) * | 2011-09-30 | 2012-10-17 | 中国中材国际工程股份有限公司 | Uniform wind control system for density separator |
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