CN205732989U - A kind of powder reduction rotary furnace drawing mechanism - Google Patents
A kind of powder reduction rotary furnace drawing mechanism Download PDFInfo
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- CN205732989U CN205732989U CN201620427409.6U CN201620427409U CN205732989U CN 205732989 U CN205732989 U CN 205732989U CN 201620427409 U CN201620427409 U CN 201620427409U CN 205732989 U CN205732989 U CN 205732989U
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- blanking tube
- material blanking
- main material
- drawing mechanism
- rotary furnace
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Abstract
The utility model discloses a kind of powder reduction rotary furnace drawing mechanism, including collecting tank, main material blanking tube and finished product bin；Collecting tank and main material blanking tube are the pipeline being vertically arranged, and main material blanking tube is positioned at below collecting tank；Collecting tank upper end seals, and middle part connects with the horizontal boiler tube of rotary furnace, and lower end connects with main material blanking tube, connects with finished product bin below main material blanking tube；It is provided with upper butterfly valve and the next butterfly valve on main material blanking tube, and is divided into upper, middle and lower segment by two butterfly valves；Being provided with suction nozzle on the downside of main material blanking tube stage casing, upside is provided with exhaust nozzle.This utility model, to moist and lump material adaptability is good, is not easily blocked, and less draws the stove frequency, and artificial dredging operation is simple, good airproof performance, it is simple to automaticity is high.
Description
Technical field
This utility model belongs to metal dust preparing technical field, is specifically related to a kind of powder reduction rotary furnace
Drawing mechanism.
Background technology
At present, non-ferrous metal industry powder preparation rotary furnace drawing mechanism many employings horizontal spiral transferring used
Send machine.Although this structure simple in construction, but there is problems in that (1) material bad adaptability.Inapplicable
Carrying in moist material, easily block viscous, it is often necessary to manually dredge, labor intensity is big.This device
The conveying of sintered state reunion shape lump material, the most stuck spiral, dredging difficulty it are not suitable for yet.(2) depend on
Sealing by material, sealing property is unreliable.According to powder reduction process characteristic, its reducing atmosphere mostly is hydrogen
Gas, for flammable explosive gas.Outside air and reducing atmosphere in burner hearth to ensure definitely to isolate.Spiral transferring
Send drawing mechanism to be full of material in relying on spiral to seal.If material movement velocity in burner hearth reduces, or spiral shell
Screw on portion's material to occur building bridge and conveyer continuous running, be then easily caused outside air and enter stove along conveyer
Thorax occurs sudden strain of a muscle quick-fried.
Utility model content
The purpose of this utility model is to provide a kind of powder reduction rotary furnace drawing mechanism, solve existing go out
Material device material bad adaptability, is not suitable for moist material and sintered state lump material, easily blocks viscous
The problem needing manually to dredge and sealing property is the best.
This utility model be employed technical scheme comprise that, a kind of powder reduction rotary furnace drawing mechanism, including
Collecting tank, main material blanking tube and finished product bin；Collecting tank and main material blanking tube are the pipeline being vertically arranged, main
Material blanking tube is positioned at below collecting tank；Collecting tank upper end seals, and middle part connects with the horizontal boiler tube of rotary furnace,
Lower end connects with main material blanking tube, connects with finished product bin below main material blanking tube；It is provided with on main material blanking tube
Position butterfly valve and the next butterfly valve, and it is divided into upper, middle and lower segment by two butterfly valves；On the downside of main material blanking tube stage casing
Being provided with suction nozzle, upside is provided with exhaust nozzle.
Feature of the present utility model also resides in:
Further, on the downside of main material blanking tube epimere, the height that one or more vertical direction is interconnected is installed
Pressure gas nozzle, to the bridge formation material broken arch in main material blanking tube epimere.
Further, gases at high pressure nozzle includes connecting the gas piping inside and outside main material blanking tube, gas piping
It is installed with reset tension spring outside the port of the one end being positioned at main material blanking tube, and this port is near main material blanking tube
Offer multiple fumarole on inner wall position, this port is also arranged with the slip being connected with reset tension spring and leads
Set, sliding sleeve covers on fumarole；When there being high pressure draught in gas piping, gas shock is slided
Guide pin bushing inner face, sliding guide sleeve overcomes reset tension spring pulling force, removes from fumarole, makes fumarole expose；
When without high pressure draught, reset tension spring resets and drives sliding guide sleeve to cover on fumarole.
Further, main material blanking tube epimere is provided with lower level-sensing device, when material arrives the timing of blanking position, starts
Discharging actuation cycle.
Further, collecting tank is additionally provided with middle level-sensing device, when level-sensing device during material arrives, in quickening
Position butterfly valve and the open frequency of the next butterfly valve, and/or, open gases at high pressure nozzle.
Further, collecting tank is additionally provided with level-sensing device, when material arrives the timing of feeding position, points out out
Material device sends stifled stove alarm.
Further, exhaust nozzle is provided with at least two, and all exhaust nozzles are positioned at main material blanking tube stage casing
At sustained height.
Further, exhaust nozzle reversely air inlet can realize automatically cleaning.
Further, exhaust nozzle is provided with water seal and emptying device.
Further, collecting tank is also associated with drawing hopper, and is provided with between hopper at collecting tank and drawing that to draw stove fast
Beginning covers；Drawing hopper and be connected with auxiliary material blanking tube, auxiliary material blanking tube lower end connects with main material blanking tube lower end.
The beneficial effects of the utility model are, this drawing mechanism presses strict sequential order logic control by two
Butterfly valve can realize metal dust discharging operation, overcomes spiral conveying mechanism and fits moist and lump material
The shortcoming of answering property difference, decreases and draws the stove operation frequency after feed blocking.Meanwhile, this utility model is permissible
Before after in realization, valve cuts out, lower valve is opened, the hydrogen to main material blanking tube stage casing carries out nitrogen charging displacement, has broken away from spiral shell
Rotation conveying mechanism relies on the shortcoming that material seals, and safety is high.It addition, this utility model can realize down
The material on-demand unlatching of valve, the increase action frequency, unlatching gases at high pressure nozzle broken arch and stifled stove are reported to the police and are exported, and carry
Show manual intervention, and it is relatively low to draw stove operation intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of powder reduction rotary furnace drawing mechanism of the present utility model；
Fig. 2 is the structural representation of a kind of gases at high pressure nozzle.
In figure, 1. platform truck, 2. finished product bin, the most main material blanking tube hypomere, 4. the next butterfly valve, 5. suction nozzle,
The most upper butterfly valve, 7. gases at high pressure nozzle, the most main material blanking tube stage casing, 9. boiler tube, 10. corrugated expansion joint,
11. collecting tanks, level-sensing device on 12., level-sensing device in 13., 14. draw stove fast beginning lid, and 15. draw hopper, 16. times
Level-sensing device, 17. auxiliary material blanking tubes, 18. main material blanking tube epimeres, 19. exhaust nozzles, 20. gas source interfaces, 21. lockings
Nut, 22. inner end cap, 23. sliding guide sleeves, 24. reset tension springs, 25. fumaroles.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings, but this
Utility model is not limited to these embodiments.
As it is shown in figure 1, powder reduction rotary furnace drawing mechanism of the present utility model includes collecting tank 11, master
Material blanking tube epimere 18, draw hopper 15, auxiliary material blanking tube 17 and finished product bin 2.Collecting tank 11 and main blanking
Pipe epimere 18 is and is vertically arranged and pipeline that caliber is equal, and main material blanking tube epimere 18 is positioned at collecting tank 11
Lower section；Collecting tank 11 upper end seals, and middle part is by graphite annulus and metal corrugated expension joint 10 and revolution
The horizontal boiler tube 9 of stove connects, and connection, main material blanking tube epimere 18 are welded in lower end with main material blanking tube epimere 18
Lower end utilizes flexible pipe to connect with finished product bin 2, and finished product bin 2 is positioned on platform truck 1.On main material blanking tube
Being provided with upper butterfly valve 6 and the next butterfly valve 4 in section 18, under conventional sense, two butterfly valves are all in cutting out shape
State, main material blanking tube epimere 18 is divided into upper, middle and lower segment by two butterfly valves, and its opening and closing make to get
Various location can be rested in dropping process from the material of collecting tank 11.Two butterfly valves are all with opening
Open, closing motion puts signal feedback auxiliary contact in place, it is simple to introduces PLC and realizes automatically controlling, and safety
Property is higher.
The lower position in main material blanking tube stage casing 8 is provided with suction nozzle 5, and upper side position is provided with exhaust nozzle 19,
Nitrogen enters from suction nozzle 5, is discharged via exhaust nozzle 19 by hydrogen in pipe, it is achieved mixed in being pointed to stage casing
Enter the purging of hydrogen.Exhaust nozzle 19 is provided with water seal and emptying device, both can ensure and air insulated, again
The metallic dust being carried out can be collected.Exhaust nozzle 19 is provided with at least two, and all exhaust nozzles 19
It is positioned at the sustained height in main material blanking tube epimere 18 stage casing 8；And exhaust nozzle 19 is additionally provided with and reversely enters
Air pipe, can air inlet in pipe extroversion pipe, dispel the material being blocked in exhaust nozzle 19, it is achieved exhaust nozzle from
Cleaning.When one of them exhaust nozzle 19 carries out automatically cleaning, the gas that suction nozzle 5 blows into can be arranged from other
Valve 19 is discharged, and automatically cleaning sequential can pass through controller programming realization.
Its work process is: discharging the first two butterfly valve is all in closed mode.Boiler tube rotates material and progresses into
Collecting tank 11, and fall at main material blanking tube epimere 18, open upper butterfly valve 6 and keep 3 seconds, making thing
Material drops to stage casing, is then shut off upper butterfly valve 6.Stage casing starts purging, and nitrogen enters from suction nozzle 5,
Hydrogen in pipe is displaced via exhaust nozzle 19.After purging continues 10 seconds, stop purging.The next butterfly
Valve 4 is opened and keeps 3 seconds, and material falls and enters finished product bin 2, so via main material blanking tube hypomere 3
The next butterfly valve 4 of rear cut out, completes discharging circulation.
Wherein, the ON cycle of upper butterfly valve 6 and the next butterfly valve 4 can be followed with program setting for fixed interval
Gyration make, it is also possible to by be arranged on the lower level-sensing device 16 on main material blanking tube epimere 18 state realize by
Need action.Level-sensing device 16 under installing on main material blanking tube epimere 18, when material is at main material blanking tube epimere 18
Epimere when piling up and arrive down level-sensing device 16, upper butterfly valve 6 is opened, and material falls to stage casing.
In order to prevent the solid accumulation in epimere from putting up a bridge, the lower position at main material blanking tube epimere 18 epimere is pacified
Dress gases at high pressure nozzle 7, can carry out broken arch to stacking material.A kind of structure of gases at high pressure nozzle 7 such as figure
Shown in 2, including the gas piping connected inside and outside main material blanking tube epimere 18, gas piping passes through locking nut
21 are fixed on main material blanking tube epimere 18.Gas piping is positioned at the end of one end of main material blanking tube epimere 18
It is installed with in Kou on reset tension spring 24, and this port and offers multiple jet near main material blanking tube inner wall position
Hole 25, i.e. at inner end cap 22.The sliding guide sleeve being connected with reset tension spring also it is arranged with on this port
23, sliding guide sleeve 23 covers on fumarole 25.When high pressure hydrogen introduces from gas source interface 20, gas
The inner face of stream impact-sliding guide pin bushing 23, sliding guide sleeve overcomes the pulling force of reset tension spring to eject to the right, exposes
Fumarole, high pressure hydrogen sprays from fumarole, reaches broken arch effect；When without high pressure draught, reset is drawn
Spring resets and drives sliding guide sleeve again to cover on fumarole, prevents dust from entering fumarole.Hydrogen pressure
Etech is 0.6Mpa, and fumarole diameter is preferably 3mm, spacing 3mm, it is contemplated that jet-stream wind is in stove
Reducing atmosphere stability influence, the source of the gas single injection event time no more than 6 seconds, preferably 4 seconds.High
Pressure gas nozzle can only one of which, it is also possible to interconnected multiple in main material blanking tube epimere vertical direction.
In order to prevent solid accumulation further, and the switch of gases at high pressure nozzle 7 is made to realize automatically controlling,
Level-sensing device 13 in arranging on collecting tank 11, when material level-sensing device 13 in epimere is piled up and arrived,
Sending instruction by controller according to pre-set programs, the open frequency of upper butterfly valve 6 and the next butterfly valve 4 adds
Hurry up, to improve discharging efficiency；Or, open gases at high pressure nozzle 7, high pressure hydrogen is in short-time pulse mode
Entering epimere and carry out broken arch, pulse duration single is less than 3 seconds；Also can two aspects carry out simultaneously.
Level-sensing device 12 it is additionally provided with on collecting tank 11, when material counts 12 in epimere accumulation arrival feeding position, this
Drawing mechanism will send alarm, the stifled stove of prompting, it is necessary to manual nitrogen charging is drawn stove and processed.
Draw stove for convenience to process, be welded with U-shaped hopper 15 of drawing in collecting tank 11 side, and collecting
Groove 11 and drawing is provided with between hopper 15 draws stove fast beginning lid.Draw hopper 15 and be connected with auxiliary material blanking tube 17, auxiliary blanking
Pipe 17 lower end connects with main material blanking tube epimere 18 lower end.Open and draw stove fast beginning lid, by material from drawing material
Groove 15 is drawn out, and the material drawn out directly enters feed bin via auxiliary material blanking tube, it is to avoid pollution to material,
Make that accidentalia causes manually to draw stove operation more convenient.For ease of dismounting maintenance, assist material blanking tube
Divide two sections, use Flange joint.
This utility model can realize metal dust discharging by two butterfly valves by strict sequential order logic control
Operation.Owing to butterfly valve bore is relatively big, and during opening and closing, material is all stirred effect, overcome
Spiral conveying mechanism, to moist and the shortcoming of lump material bad adaptability, decreases drawing after feed blocking
The stove frequency.Meanwhile, lower valve after upper valve cuts out can be realized by the suction nozzle in the middle of two valves and exhaust nozzle to beat
Before opening, the hydrogen to main material blanking tube stage casing 8 carries out nitrogen charging displacement, has broken away from spiral conveying mechanism and has relied on material
The shortcoming sealed, even if discharge end exports without material, cutting agency remain to normally work chronologically and without peace
Full hidden danger.It addition, different parts sets up stuff level switch in a device, it is possible to achieve the on-demand unlatching of baiting valve,
The increase action frequency, unlatching gases at high pressure nozzle broken arch and stifled stove are reported to the police and are exported, and point out manual intervention.For
It is easy to manually dredge operation, sets up and draw hopper and auxiliary material blanking tube, reduce stifled furnace rear and draw stove operation intensity.
This utility model above description is section Example, but this utility model is not limited to above-mentioned
Detailed description of the invention.Above-mentioned detailed description of the invention is schematic, is not restrictive.Every
Use material of the present utility model and method, without departing from this utility model objective and claimed
Ambit under, within all concrete expansions all belong to protection domain of the present utility model.
Claims (10)
1. a powder reduction rotary furnace drawing mechanism, it is characterised in that include collecting tank, main material blanking tube
And finished product bin；Collecting tank and main material blanking tube are the pipeline being vertically arranged, and main material blanking tube is positioned at collecting tank
Lower section；Collecting tank upper end seals, and middle part connects with rotary furnace boiler tube, and lower end connects with main material blanking tube, main
Connect with finished product bin below material blanking tube；Upper butterfly valve and the next butterfly valve, and quilt it is provided with on main material blanking tube
Two butterfly valves are divided into upper, middle and lower segment；Being provided with suction nozzle on the downside of main material blanking tube stage casing, upside is arranged
There is exhaust nozzle.
Powder reduction rotary furnace drawing mechanism the most according to claim 1, it is characterised in that described
The gases at high pressure nozzle that one or more vertical direction is interconnected is installed on the downside of main material blanking tube epimere, right
Bridge formation material broken arch in described main material blanking tube epimere.
Powder reduction rotary furnace drawing mechanism the most according to claim 2, it is characterised in that described
Gases at high pressure nozzle includes connecting the gas piping inside and outside main material blanking tube, and gas piping is positioned at main material blanking tube
One end port in be installed with reset tension spring, and this port offers on main material blanking tube inner wall position
Multiple fumaroles, this port is also arranged with the sliding guide sleeve being connected with reset tension spring, and sliding guide sleeve covers
On fumarole；When there being high pressure draught in gas piping, gas shock sliding guide sleeve inner face, slides
Guide pin bushing overcomes reset tension spring pulling force to remove from fumarole, makes fumarole expose；When without high pressure draught,
Reset tension spring resets and drives sliding guide sleeve to cover on fumarole.
Powder reduction rotary furnace drawing mechanism the most according to claim 3, it is characterised in that described
Main material blanking tube epimere is provided with lower level-sensing device, when material arrives the timing of blanking position, points out described drawing mechanism to open
Dynamic blanking circulation.
Powder reduction rotary furnace drawing mechanism the most according to claim 4, it is characterised in that described
It is additionally provided with middle level-sensing device on collecting tank, when level-sensing device during material arrives, points out described drawing mechanism to accelerate
Described upper butterfly valve and the open frequency of the next butterfly valve, and/or, open described gases at high pressure nozzle.
6. according to the powder reduction rotary furnace drawing mechanism described in claim 4 or 5, it is characterised in that
It is additionally provided with level-sensing device on described collecting tank, when material arrives the timing of feeding position, points out described drawing mechanism
Send stifled stove alarm.
Powder reduction rotary furnace drawing mechanism the most according to claim 1, it is characterised in that described
Exhaust nozzle is provided with at least two, and all exhaust nozzles are positioned at the sustained height in described main material blanking tube stage casing 8
Place.
Powder reduction rotary furnace drawing mechanism the most according to claim 7, it is characterised in that described
Exhaust nozzle reversely air inlet can realize automatically cleaning.
9. according to the powder reduction rotary furnace drawing mechanism according to any one of claim 1,7,8, its
It is characterised by, described exhaust nozzle is provided with water seal and emptying device.
Powder reduction rotary furnace drawing mechanism the most according to claim 1, it is characterised in that institute
State collecting tank and be also associated with drawing hopper, and at described collecting tank with draw to be provided with between hopper and draw stove fast beginning lid；
Drawing hopper and be connected with auxiliary material blanking tube, auxiliary material blanking tube lower end connects with described main material blanking tube lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427409.6U CN205732989U (en) | 2016-05-12 | 2016-05-12 | A kind of powder reduction rotary furnace drawing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427409.6U CN205732989U (en) | 2016-05-12 | 2016-05-12 | A kind of powder reduction rotary furnace drawing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205732989U true CN205732989U (en) | 2016-11-30 |
Family
ID=57368778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620427409.6U Active CN205732989U (en) | 2016-05-12 | 2016-05-12 | A kind of powder reduction rotary furnace drawing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205732989U (en) |
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2016
- 2016-05-12 CN CN201620427409.6U patent/CN205732989U/en active Active
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