CN203462077U - Clutch type vacuum alloy feeding mechanism - Google Patents
Clutch type vacuum alloy feeding mechanism Download PDFInfo
- Publication number
- CN203462077U CN203462077U CN201320551993.2U CN201320551993U CN203462077U CN 203462077 U CN203462077 U CN 203462077U CN 201320551993 U CN201320551993 U CN 201320551993U CN 203462077 U CN203462077 U CN 203462077U
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- sealing cover
- feed bin
- bottom feed
- vacuum
- chute
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Abstract
The utility model discloses a clutch type vacuum alloy feeding mechanism, comprising a lower storage bin, wherein the lower storage bin is connected with a vacuum refining device through a feeder; a pressure-equalizing pipeline is arranged on the lower storage bin to ensure that the lower storage bin is communicated with the vacuum refining device; a feed chute is supported on the top surface of the lower storage bin; a sealed cap which can be lifted up and down and rotate and carries a sealed cover chute and a sealed cover blind plate is introduced between the feed chute and the lower storage bin; when a sealed cover lifting cylinder lifts the sealed cover to an appropriate height, a rotating cylinder can drive the sealed cover to accurately rotate to a sealing position of the sealed cover blind plate or a feeding position of the sealed cover chute, so that the feed chute and the lower storage bin are separated in a vacuum state and combined in a normal-pressure state, the probability of gas leakage and material leakage in the vacuum state due to the original fixed type feeding scheme is avoided, a system can smoothly store materials in the lower storage bin in the normal-pressure state at the same time, and the clutch type vacuum alloy feeding mechanism is convenient in maintenance.
Description
Technical field
The utility model relates to the outer a refining unit technical field of vacuum oven, relates in particular to a kind of disengaging type vacuum alloy batch charging mechanism.
Background technology
The function of the outer a refining unit of vacuum oven be in the vacuum environment of the about 67Pa of absolute pressure, molten steel is carried out degassed, decarburization and composition adjustment.In order to drop into quantitative alloying constituent in molten steel, above the vacuum chamber of processing molten steel, charging system is set, carry out the control that feeds intake under vacuum state.The various alloy materials that repeatedly drop into carry out smelting chemical with metallic element to be adjusted in molten steel respectively and react, the inclusion that formation can be floated and waste gas that can dissipation, thereby the alloying constituent in assurance molten steel, produces fine work steel and the special steel of high quality, high added value.
At present, in the outer a refining unit of known vacuum oven, adopt fixed upper and lower feed bin combination feeding system, carry out the interior atmospheric pressure state of hopper and vacuum state and switch material feeding and feed intake.Its middle and upper part is receiver bin, and bottom is the storehouse that feeds intake, and by cylinder, drives miter valve to realize the vacuum leakproofness that feeds intake and control and guarantee a refining unit.This structure is easily after frequently feeding intake, and stopping property declines.When particularly top hopper is poorly sealed, can make a large amount of alloys, the alloy that especially powder metallurgy or particle are less is accumulated in the miter valve gap between top hopper and bottom hopper.
Known gas flow formula is as follows:
Q=V*S
Wherein, Q is fluid flow rate; V is fluid velocity; S is flow area.In the situation that vacuum pump suction capactity is certain, by determining the gas flow of diameter pressure-equalizing passageway, be stable.The flow area at place, gap is very little, gas velocity is larger, air in the hopper of top sees through small cross-section gap in a large number, at this moment the alloy of small volume may be carried by high velocity air, the pressure-equalizing passageway switching with air flow direction atmospheric pressure state and vacuum state, and then wrong input in vacuum chamber, cause molten steel alloying constituent out of control.Alloy adjustment only usually requires trace within the scope of several kilograms to tens kilograms to carry out, and therefore, this alloying constituent is out of control may will have a strong impact on Finished Steel quality.
As everyone knows, vacuum metling requires very high to the resistance to air loss of whole device.Top feeding chamber stopping property declines, and the interior atmospheric pressure state of upper and lower feed bin and vacuum state switching capability are weakened, and throughput rate declines.Meanwhile, extend vacuum pump and bled the time, affected the foundation of vacuum tightness in vacuum chamber, reduced efficiency and the quality of vacuum metling.In addition, this miter valve sealed structure, is enclosed in feeding chamber, is difficult for checking and changing, and has increased the possibility of leaking material and gas leakage.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of disengaging type vacuum alloy batch charging mechanism, can avoid leakage material and gas leakage problem in vacuum-treat vacuum-treat process, impel bottom feed bin in vacuum chamber, to drop into microalloy accurately and efficiently simultaneously.
In order to achieve the above object, the technical scheme that the utility model is taked is:
A kind of disengaging type vacuum alloy batch charging mechanism, comprise bottom feed bin 3, bottom feed bin 3 is connected with equipment for vacuum refining 6 by material feeder 5, bottom feed bin 3 is provided with pressure-equalizing passageway 4, pressure-equalizing passageway 4 makes bottom feed bin 3 be communicated with equipment for vacuum refining 6, feed chute 1 is supported on bottom feed bin 3 end faces, sealing cover 2 in feed chute 1 and liftable of bottom feed bin 3 intermediate arrangement and rotation, on sealing cover 2, carry close up the sealing cover chute 7 of guiding and the sealing cover blind plate 8 of gas purging, sealing cover chute 7, sealing cover blind plate 8 is connected with pivot arm 17, rely on pivot arm 17 and with same rotation, be arranged on the circular arc of specifying radius, pivot arm 17 is installed by the turning axle running fit on axle sleeve and fixed support 15, above the rotating shaft axis of fixed support 15, sealing cover lifting cylinder 16 is housed, sealing cover lifting cylinder 16 is provided with lifting limit switch 13, at bottom feed bin 3 end faces, be horizontally installed with sealing cover rotary cylinder 9 and rpm governor 10, rotary cylinder 9 afterbodys are installed by the turning axle running fit of axle sleeve and bottom feed bin 3 end faces, rotary cylinder 9 heads are arranged on sealing cover pivot arm 17 by oscillating bearing, rotary cylinder 9 axis and pivot arm 17 axis are less than 90 degree and arrange, sealing cover blind plate 8 fastens with bottom feed bin 3, the swing-around trajectory 12 of rotary cylinder 9 is provided with rotary stopper switch 14.
On described bottom feed bin receiving opening flange face 18, offer dovetail-indent, and be fitted with elastic seal ring, on pivot arm 17, with dust remover 11, sealing cover blind plate 8 adopts flexible connection mode to be articulated on pivot arm 17, and sealing cover blind plate 8 upper flange surface are provided with gas purging hole 19.
The dog-house of described feed chute 1 and bottom feed bin receiving opening flange face 18 keep gap, sealing cover chute 7 and pivot arm 17 partial installations.
The beneficial effects of the utility model are:
In vacuum refinement process, after sealing cover blind plate 8 fastens with bottom feed bin 3, bottom feed bin 3 is separated with top feed, can avoid the supplied materials being caused by original fixed scheme of feeding intake to be inhaled into the problem in vacuum chamber through pressure-equalizing passageway 4; Sealing cover 2 has good stopping property, and can avoid outer gas stream to be inhaled into affects the vacuum tightness in vacuum chamber in a refining unit.Sealing cover 2 and sealing-ring are external structure, easy access and maintenance.
In vacuum, feed intake in process, after sealing cover blind plate 8 fastens with bottom feed bin 3, bottom feed bin 3 is separated with top feed, can guarantee that vacuum pump can discharge the gas in feed bin smoothly, impel the material feeder 5 of bottom feed bin 3 bottoms smoothly alloy material to be dropped in vacuum chamber without resistance.
In normal pressure melting process, sealing cover chute 7 is accurately communicated with feed chute 1 with bottom feed bin 3, can guarantee that alloy drops in bottom feed bin 3 from top feeding system smoothly.
As can be seen here, this disengaging type vacuum alloy feeding system is got the raw materials ready in function under guaranteeing atmospheric pressure state, can avoid leakage material and gas leakage problem in vacuum-treat vacuum-treat process, impel bottom feed bin in vacuum chamber, to drop into microalloy accurately and efficiently simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model feed chute 1 and bottom feed bin 3 connection diagrams, and wherein, Fig. 2 (a) is connection mechanism's front view; Fig. 2 (b) is connection mechanism's left view.
Fig. 3 is the utility model sealing cover 2 structural representations, and wherein, Fig. 3 (a) is sealing cover 2 vertical views; Fig. 3 (b) is sealing cover 2 front views.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
With reference to Fig. 1, a kind of disengaging type vacuum alloy batch charging mechanism, comprise bottom feed bin 3, bottom feed bin 3 is connected with equipment for vacuum refining 6 by material feeder 5, bottom feed bin 3 is provided with pressure-equalizing passageway 4, pressure-equalizing passageway 4 makes bottom feed bin 3 be communicated with equipment for vacuum refining 6, feed chute 1 is supported on bottom feed bin 3 end faces, sealing cover 2 in feed chute 1 and liftable of bottom feed bin 3 intermediate arrangement and rotation, with reference to Fig. 2, on sealing cover 2, carry close up the sealing cover chute 7 of guiding and the sealing cover blind plate 8 of gas purging, with reference to Fig. 3, sealing cover chute 7, sealing cover blind plate 8 is connected with pivot arm 17, rely on pivot arm 17 and with same rotation, be arranged on the circular arc of specifying radius, pivot arm 17 is installed by the turning axle running fit on axle sleeve and fixed support 15, above the rotating shaft axis of fixed support 15, sealing cover lifting cylinder 16 is housed, sealing cover lifting cylinder 16 is provided with lifting limit switch 13, at bottom feed bin 3 end faces, be horizontally installed with sealing cover rotary cylinder 9 and rpm governor 10, rotary cylinder 9 afterbodys are installed by the turning axle running fit of axle sleeve and bottom feed bin 3 end faces, rotary cylinder 9 heads are arranged on sealing cover pivot arm 17 by oscillating bearing, for guaranteeing that sealing cover 2 can rotate smoothly, rotary cylinder 9 axis and pivot arm 17 axis are less than 90 degree and arrange, sealing cover blind plate 8 fastens with bottom feed bin 3, after guaranteeing that the interior released gas rate of bottom feed bin 3 is less, vacuum tightness in bottom feed bin 3 will approach the vacuum tightness of equipment for vacuum refining 6 very soon, the material feeder that guarantees bottom bin bottom drops into quantitative alloy material in vacuum chamber without resistance smoothly, the swing-around trajectory 12 of rotary cylinder 9 is provided with rotary stopper switch 14.
With reference to Fig. 3, on described bottom feed bin receiving opening flange face 18, offer dovetail-indent, and be fitted with elastic seal ring, on pivot arm 17 with dust remover 11, when sealing cover 2 rotation, dust remover 11 is removed residual alloy dust and particle on bottom feed bin receiving opening flange face 18 and sealing-ring thereof, after mechanical workout, the sealing cover blind plate 8 that trim has certain smooth finish adopts flexible connection mode to be articulated on pivot arm 17, can be according to processing, assembling, and technique needs the stopping property of sealing cap capable of regulating blind plate 8, sealing cover blind plate 8 upper flange surface are provided with gas purging hole 19.
The dog-house of described feed chute 1 and bottom feed bin receiving opening flange face 18 keep gap, be convenient to sealing cover blind plate 8 and sealing cover chute 7 and back and forth switch station with pivot arm 17, and guarantee that sealing cover 2 liftings are smooth, and avoid chute guide excessive clearance and occur leaking material phenomenon, sealing cover chute 7 and pivot arm 17 partial installations, can need according to processing, assembling and technique the pad of 17 of sealing cap capable of regulating chute 7 and pivot arms, control guide gap.
Principle of work of the present utility model is:
By the fixed scheme of original top feed bin and bottom feed bin, be adjusted into the disengaging type scheme of feed chute, sealing cover and bottom feed bin.The key of this scheme is: in the middle of feed chute 1 and bottom feed bin 3, introduce one can lifting and rotation carry sealing cover chute 7, the sealing cover 2 of sealing cover blind plate 8, when sealing cover lifting cylinder 16 is mentioned sealing cover 2 after suitable height, rotary cylinder 9 accurately rotates promotion sealing cover 2 to sealing cover blind plate 8 sealing positions or sealing cover chute 7 position that feeds intake, realize feed chute 1 separated and combination under atmospheric pressure state under vacuum state with bottom feed bin 3, avoid by original fixed scheme of feeding intake, causing the Lou possibility of material under vacuum state, the system that simultaneously guarantees under atmospheric pressure state is smoothly to storing in the feed bin of bottom.
For guaranteeing that this system has good gas tightness under vacuum state, adopts following measure: one, offer sealed structure on bottom feed bin receiving opening flange face 18; Two, sealing cover 2 is provided with dust remover 11; Three, sealing cover blind plate 8 can be adjusted with the gap of bottom feed bin receiving opening flange face 18.
Pressure-equalizing passageway 4 on bottom feed bin 3 makes bottom feed bin 3 and equipment for vacuum refining 6 UNICOMs, after sealing cover blind plate 8 and bottom feed bin 3 fasten, when the vacuum tightness in the vacuum tightness in bottom feed bin 3 and equipment for vacuum refining 6 approaches, the material feeder 5 of bottom feed bin 3 bottoms drops into alloy material in vacuum chamber without resistance smoothly.
Claims (1)
1. a disengaging type vacuum alloy batch charging mechanism, comprise bottom feed bin (3), bottom feed bin (3) is connected with equipment for vacuum refining (6) by material feeder (5), bottom feed bin (3) is provided with pressure-equalizing passageway (4), pressure-equalizing passageway (4) makes bottom feed bin (3) be communicated with equipment for vacuum refining (6), feed chute (1) is supported on bottom feed bin (3) end face, it is characterized in that: at the sealing cover (2) of feed chute (1) and liftable of bottom feed bin (3) intermediate arrangement and rotation, on sealing cover (2), carry close up the sealing cover chute (7) of guiding and the sealing cover blind plate (8) of gas purging, sealing cover chute (7), sealing cover blind plate (8) is connected with pivot arm (17), rely on pivot arm (17) and with same rotation, be arranged on the circular arc of specifying radius, pivot arm (17) is installed by the turning axle running fit on axle sleeve and fixed support (15), rotating shaft axis top at fixed support (15), sealing cover lifting cylinder (16) is housed, sealing cover lifting cylinder (16) is provided with lifting limit switch (13), at bottom feed bin (3) end face, be horizontally installed with sealing cover rotary cylinder (9) and rpm governor (10), rotary cylinder (9) afterbody is installed by the turning axle running fit of axle sleeve and bottom feed bin (3) end face, rotary cylinder (9) head is arranged on sealing cover pivot arm (17) by oscillating bearing, rotary cylinder (9) axis and pivot arm (17) axis are less than 90 degree and arrange, sealing cover blind plate (8) fastens with bottom feed bin (3), the swing-around trajectory (12) of rotary cylinder (9) is provided with rotary stopper switch (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551993.2U CN203462077U (en) | 2013-09-05 | 2013-09-05 | Clutch type vacuum alloy feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551993.2U CN203462077U (en) | 2013-09-05 | 2013-09-05 | Clutch type vacuum alloy feeding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203462077U true CN203462077U (en) | 2014-03-05 |
Family
ID=50174453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320551993.2U Expired - Fee Related CN203462077U (en) | 2013-09-05 | 2013-09-05 | Clutch type vacuum alloy feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203462077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468879A (en) * | 2013-09-05 | 2013-12-25 | 中国重型机械研究院股份公司 | Clutch-type vacuum alloy feeding system |
| CN104745769A (en) * | 2015-03-26 | 2015-07-01 | 中国重型机械研究院股份公司 | Vacuum rotary feeding device |
-
2013
- 2013-09-05 CN CN201320551993.2U patent/CN203462077U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468879A (en) * | 2013-09-05 | 2013-12-25 | 中国重型机械研究院股份公司 | Clutch-type vacuum alloy feeding system |
| CN104745769A (en) * | 2015-03-26 | 2015-07-01 | 中国重型机械研究院股份公司 | Vacuum rotary feeding device |
| CN104745769B (en) * | 2015-03-26 | 2017-08-01 | 中国重型机械研究院股份公司 | Vacuum rotating charging gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20190905 |
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| CF01 | Termination of patent right due to non-payment of annual fee |