CN102671973A - Active flow field controllable type dry leveling dust cleaning device - Google Patents
Active flow field controllable type dry leveling dust cleaning device Download PDFInfo
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- CN102671973A CN102671973A CN2012101359050A CN201210135905A CN102671973A CN 102671973 A CN102671973 A CN 102671973A CN 2012101359050 A CN2012101359050 A CN 2012101359050A CN 201210135905 A CN201210135905 A CN 201210135905A CN 102671973 A CN102671973 A CN 102671973A
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Abstract
The invention relates to an active flow field controllable type dry leveling dust cleaning device which is arranged on an outlet of a leveling machine and mainly comprises a dust blowing device, a dynamic sealing device and a negative pressure pumping device. The air flow blowing direction of the dust blowing device faces right to the direction of roller gaps. The dynamic sealing device comprises a roller dynamic sealing member and a gas collecting device butting against the negative pressure pumping device, and the roller dynamic sealing member is in dynamic contact sealing with a roller. The gas collecting device is installed on the negative pressure pumping device and can advance and retreat together with the negative pressure pumping device, the gas collecting device is an obliquely-upward-arranged combined adjustable gas channel, one end of the channel aligns at the direction of the roller gaps, the other end of the channel butts against the opened side of a negative pressure cavity of the negative pressure pumping device, and four lateral surfaces of the combined adjustable gas channel together with the roller dynamic sealing member, strip steel and a working roller form a gas collecting space all the time. The active flow field controllable type dry leveling dust cleaning device can prevent the leveled dust from falling on finished strip steel products to form rust spots and ensures leveling dust to be completely removed in the negative pressure pumping process.
Description
Technical field
The invention belongs to the cold rolling levelling technical field, be specifically related to a kind of smooth process units that promotes smooth product surface quality, this device is applied to all kinds of cold rolling levelling units.
Background technology
Smooth unit is in adopting dried smooth mode production process, and for fear of produce a some rust defective on the finished strip surface, the common mode of suction that adopts is taken smooth dust away in the planisher outlet.Yet, adopt the mode of negative pressure suction very high to the airtight requirement of suction hood, as not solving the airtight of suction hood, adopt the method for negative pressure suction can't remove smooth dust fully.Because in the formation process, strip width alters a great deal, simultaneously, the vibration in the band steel running also is difficult to avoid, thereby can't reach good obturation effect, and therefore, the negative pressure suction method is difficult to solve smooth dust residue problem.On the other hand, because smooth dust carrying magnetic is adsorbed on the finished strip surface easily, this has further increased the difficulty of suction dedusting.So the smooth dust residue problem in the dried formation process perplexs modern smooth production all the time.
Summary of the invention
The technical problem that the present invention will solve is: to residual this technical barrier of the insurmountable dust of suction mode in the dried formation process; Provide a kind of active flow field control formula to do smooth dust scavenge unit; Can avoid dust after smooth to descend slowly and lightly and on finished strip, form the some rust; Simultaneously smooth dust is blown afloat, guarantee to remove smooth dust fully in the negative pressure aspiration procedure.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
Control formula in active flow field is done smooth dust scavenge unit; Be positioned at band steel top, planisher exit the smooth dust in band steel upper surface and top working roll zone is removed, it is characterized in that mainly comprising dust blow device, roll dynamic sealing, negative suction system and dust collecting; Dust blow device gas flow purging direction is over against the roll gap direction; The dynamic contact seal of roll dynamic sealing and roll; Dust collecting is installed on the negative suction system and can advances and retreat synchronously with negative suction system; Dust collecting is to be tilted to the combined type adjustable type passage that is provided with; One end of passage is aimed at the roll gap direction and is docked with the roll dynamic sealing, and the negative pressure cavity open side of the other end and negative suction system connects; All the time form a dust collection space between four sides of combined type adjustable type gas passage and roll dynamic sealings, band steel, the working roll.
Dust collecting mainly comprises the side plate of top board, both sides and the telescopic flow guiding plate relative with top board; Top board one end contacts with the roll dynamic sealing, and the other end contacts with the top board of negative pressure cavity; The side plate of both sides is equipped with the side plate drive unit and can the strip width direction separates or close up in the effect lower edge of this device; The telescopic flow guiding plate is arranged on the bottom surface of negative pressure cavity and can on the bottom surface, slides and stretch out or rollback; The relative position of the external part of telescopic flow guiding plate and dust blow device is constant and do not influence the direction of gaseous purge stream; All the time form a dust collection space between side plate, top board, roll dynamic sealing, telescopic flow guiding plate and band steel, the working roll.
The dust blow device mainly is made up of purging beam, nozzle, control valve, pipeline, and many pipelines are vertically set on the purging beam with branch form, and each pipeline is provided with control valve, and nozzle is disposed in an evenly spaced relation in alignmently and purges on the beam.
The quantity that nozzle is opened can be selected arbitrarily according to the width of band steel, and the flow and the pressure of each nozzle are regulated through control valve.
Negative suction system comprises negative pressure cavity and the negative pressure control valve that is arranged on the negative pressure line and is connected with negative pressure cavity, and negative pressure cavity is flat cube, is provided with the grid that connects with dust collecting along strip width direction bilateral symmetry in the negative pressure cavity.
Negative suction system is provided with and the corresponding to hydraulic cylinder of the incline direction of negative pressure cavity; Side plate, top board, roll dynamic sealing, telescopic flow guiding plate are installed on the negative pressure cavity, and can under the effect of hydraulic cylinder, advance along with the variation of roller diameter or retreat.
But the length manual adjustments that the telescopic flow guiding plate stretches out.
The roll dynamic sealing is a rubber blanket.
The side plate drive unit comprises motor that has reduction box and the feed screw nut who links to each other with motor.
The use of this device is: the band steel is surveyed this cleaning device place of opening roller, the pass line roller that enters the mouth, the wrinkle resistant roller that enters the mouth, upper working rolls and lower working rolls arrival exit through the inlet of smooth unit successively; The air-flow generation source of dust blow device and negative suction system are complementary and control the airflow direction of planisher exit region; The finished strip surface of outlet forms a stable air cushion; Avoid dust after smooth to descend slowly and lightly and on finished strip, form the some rust; Simultaneously smooth dust is blown afloat, guarantee to remove smooth dust fully in the negative pressure aspiration procedure, can promote the surface quality of finished strip significantly.
After the smooth processing of band steel process planisher; Produce metallic dust at the planisher outlet side; Because the dust in band steel lower surface and bottom working roll zone can leave finished strip under the acting in conjunction of bottom working roll airflow field and gravitational field; Product quality is not impacted, therefore, emphasis is handled the smooth dust in band steel upper surface and top working roll zone.This device is a principle of utilizing airflow field, at first, and through the diffusion of smooth dust collecting, roll dynamic sealing means, smooth dust blow device, band steel and top working roll structure one relative closed area restriction metallic dust; Secondly; Be close to outlet band steel upper surface; And on the direction parallel with planisher outlet band steel traffic direction, carry out compressed air through smooth dust blow device as air-flow generation source and purge, this can prevent effectively that to air-flow metallic dust from adsorbing at the finished strip upper surface; Meanwhile; Smooth dust collecting is through the extension elongation adjustment airflow direction of control negative pressure intensity and adjustment telescopic flow guiding plate; The air-flow trend of control planisher outlet band steel upper surface closed area is thoroughly removed the metallic dust of planisher outlet band steel upper surface by the directed flow of air-flow.Negative suction system is provided with the negative pressure control valve; This negative pressure control valve can be used with the control valve of compressed air blowing cleaner; According to the pressure of the surface quality real-time regulated aspiration circuit that exports the band steel and the tolerance of blow device; Can reduce compressed-air actuated consumption like this, reduce production costs, also can reduce noise simultaneously.
Stronger versatility is arranged, can be widely used in all kinds of cold rolling levelling units.
Description of drawings:
Fig. 1: the active flow field control formula of implementing according to the present invention is done smooth dust scavenge unit structural representation;
Fig. 2: blow device structural representation;
Fig. 3: roll dynamic sealing, dust collecting, negative suction system structural representation (front view);
The side view of Fig. 4: Fig. 3.
The A of Fig. 5: Fig. 4 is to local (dust collecting position) zoomed-in view.
Description of symbols among each figure: 1 top working roll; 2 band steel; 3 inlet pass line rollers; 4 inlets are surveyed and are opened roller; The wrinkle resistant roller of 5 inlets; 6 bottom working rolls; 7 negative suction systems; The 7-1 negative pressure cavity; 7-2 negative pressure control valve; The 7-3 negative pressure line; 8 dust blow devices; 8-1 purges beam; The 8-2 nozzle; The 8-3 control valve; The 8-4 pipeline; 9 dust collectings; 9-1 roll dynamic sealing; The 9-2 side plate; The 9-3 top board; 9-4 telescopic flow guiding plate; 10 feed screw nuts; 11 reduction boxes; 12 motors; 13 hydraulic cylinders.
The specific embodiment:
Below in conjunction with embodiment and accompanying drawing 1-5 the present invention is described further, but does not limit the present invention.
Referring to Fig. 1-5: the active flow field control formula of implementing by the present invention is done smooth dust scavenge unit and is positioned at planisher outlet band steel top, mainly comprises dust blow device 8, roll dynamic sealing 9-1, negative suction system 7 and dust collecting 9.
The structural representation of roll dynamic sealing 9-1, negative suction system 7 and dust collecting 9 is shown in Fig. 3-5.
The roll dynamic sealing 9-1 of heat resistant and wear resistant is arranged between dust collecting 9 and the roll and dynamically contacts with roll and forms sealing.Roll dynamic sealing 9-1 is a rubber blanket.
Dust collecting 9 comprises top board 9-3, the side plate 9-2 of top board both sides and the telescopic flow guiding plate 9-4 relative with top board 9-3 that is tilted to setting; Side plate 9-2, top board 9-3, roll dynamic sealing 9-1 and telescopic flow guiding plate 9-4 are installed on the negative pressure cavity 7-1; Along strip width direction and the corresponding position of side plate 9-2, both sides; Negative suction system 7 is provided with and the corresponding to hydraulic cylinder 13 of the incline direction of negative pressure cavity 7-1, and the side plate 9-2 on the negative pressure cavity 7-1, top board 9-3, roll dynamic sealing 9-1, telescopic flow guiding plate 9-4 can advance along with the variation of roller diameter under the effect of hydraulic cylinder 13 or retreat.The drive unit of side plate 9-2 comprises motor 12 that has reduction box 11 and the feed screw nut 10 who links to each other with motor 12; The width of band steel changes in formation process; The variation of side plate 9-2 steel width going along with under the effect of drive unit and sidesway; Simultaneously; Being installed in side plate 9-2, top board 9-3, roll dynamic sealing 9-1, telescopic flow guiding plate 9-4 on the negative pressure cavity 7-1 advances along with the variation of roller diameter under the effect of hydraulic cylinder 13 or retreats; Guarantee that roll dynamic sealing 9-1 and top working roll 1 press close to, make side plate 9-2, top board 9-3, roll dynamic sealing 9-1, telescopic flow guiding plate 9-4 airtight relatively or airtight basically dust collection space of formation all the time and between the band steel 2, top working roll 1.
After negative suction system 7 advances or retreats, but the length that manual adjustments telescopic flow guiding plate 9-4 stretches out remains it and to purge relative position between the beam 8-1 constant and do not influence the direction that purges the beam air-flow.Negative pressure intensity in the negative pressure cavity 7-1 can also be regulated through the negative pressure control valve 7-2 in the negative suction system 7 in this dust collection space, aspirates the purpose that the dust that produces in the dried formation process reaches the cleaning band steel thereby make it have enough abilities; Can also utilize telescopic flow guiding plate 9-4 adjustment airflow direction, realize that the closed area air-flow moves towards control.
The use of this device is as shown in Figure 1: band steel 2 inlet through smooth unit is successively surveyed and is opened the wrinkle resistant roller of a roller 4, inlet pass line roller 3, inlet 5, upper working rolls and lower working rolls (1; 6) the active flow field control formula that arrives the exit is done smooth dust scavenge unit place; Dust blow device 8 purges along belt steel surface; Form a stable air cushion on the finished strip surface of planisher outlet; Avoid dust to descend slowly and lightly on finished strip, simultaneously the impurity that produces in the formation process is blown afloat, be convenient to negative suction system 7 dust is taken away; In order to prevent that smooth dust from dispersing, be installed in roll dynamic sealing 9-1 and top working roll 1, band steel 2 on the negative suction system 7 and form an airtight relatively space, promote dust removing effects; The inner chamber of negative suction system 7 is a negative pressure state simultaneously, makes loop for gaseous purge stream, avoids the sweep gas flow field under the influence of reflected gas stream, to form turbulent flow, influences dust removing effects.
Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalence of therefore doing according to claim of the present invention changes, and still belongs to protection scope of the present invention.
Claims (9)
1. control formula in active flow field is done smooth dust scavenge unit; Be positioned at band steel top, planisher exit the smooth dust in band steel upper surface and top working roll zone is removed, it is characterized in that mainly comprising dust blow device, roll dynamic sealing, negative suction system and dust collecting; Dust blow device gas flow purging direction is over against the roll gap direction; The dynamic contact seal of roll dynamic sealing and roll; Dust collecting is installed on the negative suction system and can advances and retreat synchronously with negative suction system; Dust collecting is to be tilted to the combined type adjustable type passage that is provided with; One end of passage is aimed at the roll gap direction and is docked with the roll dynamic sealing, and the negative pressure cavity open side of the other end and negative suction system connects; All the time form a dust collection space between four sides of combined type adjustable type gas passage and roll dynamic sealings, band steel, the working roll.
2. dust scavenge unit according to claim 1 is characterized in that: dust collecting mainly comprises the side plate of top board, both sides and the telescopic flow guiding plate relative with top board; Top board one end contacts with the roll dynamic sealing, and the other end contacts with the top board of negative pressure cavity; The side plate of both sides is equipped with the side plate drive unit and can the strip width direction separates or close up in the effect lower edge of this device; The telescopic flow guiding plate is arranged on the bottom surface of negative pressure cavity and can on the bottom surface, slides and stretch out or rollback; The relative position of the external part of telescopic flow guiding plate and dust blow device is constant and do not influence the direction of gaseous purge stream; All the time form a dust collection space between side plate, top board, roll dynamic sealing, telescopic flow guiding plate and band steel, the working roll.
3. dust scavenge unit according to claim 1 and 2; It is characterized in that the dust blow device mainly forms by purging beam, nozzle, control valve, pipeline; Many pipeline is vertically set on the purging beam with branch form; Each pipeline is provided with control valve, and nozzle is disposed in an evenly spaced relation in alignmently and purges on the beam.
4. dust scavenge unit according to claim 3 is characterized in that: the quantity that nozzle is opened can be selected arbitrarily according to the width of band steel, and the flow and the pressure of each nozzle are regulated through control valve.
5. according to claim 1 or 2 or 4 described dust scavenge units; It is characterized in that: negative suction system comprises negative pressure cavity and the negative pressure control valve that is arranged on the negative pressure line and is connected with negative pressure cavity; Negative pressure cavity is flat cube, is provided with the grid that connects with dust collecting along strip width direction bilateral symmetry in the negative pressure cavity.
6. dust scavenge unit according to claim 5; It is characterized in that: negative suction system is provided with and the corresponding to hydraulic cylinder of the incline direction of negative pressure cavity; Side plate, top board, roll dynamic sealing, telescopic flow guiding plate are installed on the negative pressure cavity, and can under the effect of hydraulic cylinder, advance along with the variation of roller diameter or retreat.
7. according to claim 2 or 4 or 6 described dust scavenge units, it is characterized in that: but the length manual adjustments that the telescopic flow guiding plate stretches out.
8. dust scavenge unit according to claim 7 is characterized in that: the roll dynamic sealing is a rubber blanket.
9. according to claim 2 or 4 or 6 or 8 described dust scavenge units, it is characterized in that: the side plate drive unit comprises motor that has reduction box and the feed screw nut who links to each other with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135905.0A CN102671973B (en) | 2012-05-04 | 2012-05-04 | Active flow field controllable type dry leveling dust cleaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210135905.0A CN102671973B (en) | 2012-05-04 | 2012-05-04 | Active flow field controllable type dry leveling dust cleaning device |
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| CN102671973A true CN102671973A (en) | 2012-09-19 |
| CN102671973B CN102671973B (en) | 2015-01-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337971A (en) * | 2020-11-03 | 2021-02-09 | 洛阳万基铝加工有限公司 | Novel aluminum foil rolling machine |
| CN115228949A (en) * | 2022-07-21 | 2022-10-25 | 山西太钢工程技术有限公司 | Dry-type levelling machine belted steel cleaning device |
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| JPH11169942A (en) * | 1997-12-03 | 1999-06-29 | Kawasaki Steel Corp | Build-up line for stainless steel strip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112337971A (en) * | 2020-11-03 | 2021-02-09 | 洛阳万基铝加工有限公司 | Novel aluminum foil rolling machine |
| CN115228949A (en) * | 2022-07-21 | 2022-10-25 | 山西太钢工程技术有限公司 | Dry-type levelling machine belted steel cleaning device |
| CN115228949B (en) * | 2022-07-21 | 2024-04-26 | 山西太钢工程技术有限公司 | Strip steel cleaning device of dry leveling machine |
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