CN201351614Y - Liquid metal pump - Google Patents
Liquid metal pump Download PDFInfo
- Publication number
- CN201351614Y CN201351614Y CNU2008201594204U CN200820159420U CN201351614Y CN 201351614 Y CN201351614 Y CN 201351614Y CN U2008201594204 U CNU2008201594204 U CN U2008201594204U CN 200820159420 U CN200820159420 U CN 200820159420U CN 201351614 Y CN201351614 Y CN 201351614Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- pump
- transmission shaft
- blade
- cadmium
- 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 - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a liquid metal pump which comprises a pump shell, a transmission shaft and vanes, and is characterized in that the pump shell is an upright cylinder; the transmission shaft is a spiral shaft which is arranged in the cylinder; the vanes are spiral vanes which are arranged around the spiral shaft; the spiral shaft is supported by a transmission bearing which is fixed above the cylinder; and the transmission shaft is supported by a transmission bearing seat which is connected with the cylinder coaxially. By adopting a seal impeller, the seal impeller is driven by the transmission shaft to rotate and generate centrifugal force, so as to form a certain negative pressure in the pump shell, realize the dynamic sealing of the pump, and prevent cadmium solution from overflowing from the transmission bearing seat. Because the structure in which a heat insulating layer is wrapped on the part above the liquid level in the cylinder, after the pump stops working, the cadmium solution left in the pump is not quickly cooled down, thereby preventing the part of residual solution in the pump from being quickly crystallized and all parts from being mechanically consumed, and prolong the service life of the pump.
Description
Technical field
The utility model relates to a kind of pump, specially refers to liquid metal transfer pump.
Background technique
The fusing point of cadmium metal is 321.03 ℃, and boiling point is 765 ℃, and relative density is 8.642, and cadmium has carcinogenicity, and IARC (IARC) classifies as the human carcinogenic substance of the first kind to cadmium.Since cadmium in air very easily oxidation generate brown cadmium oxide, especially liquid cadmium produces a kind of yellow smog when meeting with air; be cadmium oxide gas; very easily human body being worked the mischief, in the industrialized production, is exactly how to avoid contacting of human body and cadmium to one of protective measure of labourer.But in the prior art; as in pyro-refining cadmium process; the cadmium transhipment all is to adopt manual operation; be the operator from the melting pot with cadmium liquid one wooden dipper one wooden dipper scoop out to thick cadmium mould; must guarantee to cover above every wooden dipper cadmium liquid the alkali lye of one deck book book when ladling out liquid; taking this measure is to utilize the light principle of lye ratio anharmonic ratio cadmium liquid; soda bath is floated on the cadmium liquid; form layer protective layer; to prevent that liquid cadmium oxidation from producing yellow smog; treat in the thick cadmium mould liquid cadmium be cooled to solid-state after, go in the retort again and melt, distill out the high-purity cadmium.This method can work the mischief to labourer inevitably, and is dangerous, and efficient is low, also wasted a large amount of energy.Carrying out with pump that sealed mode carries is effective isolation mode, but since liquid cadmium very easily evaporate, also very easily crystallization, still a kind of molten metal of big proportion is carried also for the pump of cadmium and has been brought technical difficulty.Various metal pump of the prior art mostly is not provided with the high temperature resistant axial seal of energy, and shaft sealing material of using always in the prior art such as rubber, plastics, polyamine fat etc. are though the good all non-refractories of sealing effect can not be applied on the pump of carrying cadmium liquid.The helical blade transfer pump is a kind of big pump type than heavy metal that is adapted to carry, but the helical blade transfer pump generally adopts the backpitch sealing means in the prior art, if the backpitch blade is too short in this sealing means, then sealing effect is poor, if the backpitch blade is long, then influence the conveying capacity of pump because of transmission shaft is long, therefore the backpitch sealing means is unsuitable for the sealing of cadmium liquid transfer pump, be difficult to guarantee the axial seal effect, also be difficult to accomplish closed conveying cadmium liquid, cadmium liquid contacts easy oxidation with air; Pump case is not provided with thermal insulation apparatus outward, after the termination of pumping, and the easy crystallization of cadmium liquid in the pump, pump is fragile.
In sum, various metal pumps of the prior art all do not satisfy the requirement of cadmium liquid safe transport, need further to improve.
The model utility content
The purpose of this utility model is to provide a kind of liquid metal cadmium transfer pump, and it can realize the pump seal conveying of cadmium, and solves the crystallization blockage problem of cadmium liquid in course of conveying, avoids the harm of cadmium oxidation to labourer.
Technical solution of the present utility model is:
A kind of liquid metal cadmium transfer pump, it comprises pump case, transmission shaft, blade, it is characterized in that: described pump case is upright cylinder, described transmission shaft is the screw axis that is installed in the cylinder, described blade is the helical blade that is surrounded on the screw axis, described screw axis is by the drive bearing supporting of being fixed in the cylinder top, and described transmission shaft is by supporting with the coaxial transmission shaft bearing that connects of cylinder.
As to further improvement of the utility model, described cylinder is coated with thermal insulation layer.
As to further improvement of the utility model, described screw axis is driven by the belt pulley that is arranged at its tail end.
As to further improvement of the utility model, by the sealing impeller seals, described sealing impeller is the disk that is provided with 3～8 blade angles blade opposite with the helical blade angle between described transmission shaft bearing and the cylinder.
As to further improvement of the utility model, described sealing impeller is the disk that is provided with 4 or 5 blade angles blade opposite with the helical blade angle.
As to further improvement of the utility model, described thermal insulation layer is in the epimere of cylinder, and described thermal insulation layer length is for coating the part on the liquid level in the cylinder.
The beneficial effects of the utility model are:
1, because the utility model adopts helical blade to promote the conveying molten metals cadmium, solved than great the transportation problem of the molten metal cadmium that viscosity is big.Because the utility model is provided with the sealing impeller, and its blade angle is opposite with the angle of main impeller helical blade, when rotating under its drive at transmission shaft, because the sealing impeller produces centrifugal force in rotary course, make the cylinder upper space form negative pressure, and form certain end thrust, can stop cadmium liquid in pump case, to enter the transmission shaft bearing, realized the motive sealing of pump, stoped cadmium liquid to overflow from the transmission shaft bearing.
2, because the part on the utility model employing cylinder liquid level is coated with the structure of thermal insulation layer, after making termination of pumping, residual cadmium liquid can not cool off fast in the pump, can prevent this part raffinate rapid crystallization in the pump, each parts is caused mechanical loss, prolong the working life of pump;
3, because the utility model adopts the belt pulley transmission, even because of there being cadmium liquid crystalline solid to cause the transmission load of pump to increase in the pump, when surpassing the rated load of pump, even cause belt slippage, can not cause the damage transmission part, the equipment that effectively guaranteed can not cause damage because of unexpected crystallization, by the counter-rotating of screw axis yet, residual cadmium liquid in the pump can be discharged from pump intake, guarantee that transfer pump is excellent.
4, the utility model can be delivered to needed position with the long distance of cadmium liquid at the delivery side of pump connecting tube.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: the 1-belt pulley, 2-transmission shaft bearing, the 3-screw axis, 4-seals impeller, 5-thermal insulation layer, 6-helical blade, 7-pump case.
Embodiment
Below in conjunction with accompanying drawing the utility model and embodiment thereof are described in further detail.
Embodiment 1:
A kind of liquid metal cadmium transfer pump, as shown in Figure 1, it comprises pump case 7, transmission shaft, blade, pump case 7 is upright cylinder, the outer epimere of cylinder is coated with thermal insulation layer 5, thermal insulation layer 5 is exposed at airborne part with cylinder and coats, transmission shaft is the screw axis 3 that is installed in the cylinder, screw axis 3 is driven by the belt pulley 1 that is arranged at its tail end, blade is the helical blade 6 that is surrounded on the screw axis, screw axis 3 is by the drive bearing supporting of being fixed in the cylinder top, and transmission shaft is by supporting with the coaxial transmission shaft bearing that connects 2 of cylinder.By the sealing of sealing impeller 4, sealing impeller 4 is for being fixed with the disk of 3 blade angles blade opposite with the helical blade angle between transmission shaft bearing 2 and the cylinder.
Embodiment 2:
A kind of liquid metal cadmium transfer pump, as shown in Figure 1, it comprises pump case 7, transmission shaft, blade, pump case 7 is upright cylinder, the outer epimere of cylinder is coated with thermal insulation layer 5, thermal insulation layer 5 is exposed at airborne part with cylinder and coats, transmission shaft is the screw axis 3 that is installed in the cylinder, screw axis 3 is driven by the belt pulley 1 that is arranged at its tail end, blade is the helical blade 6 that is surrounded on the screw axis, screw axis 3 is by the drive bearing supporting of being fixed in the cylinder top, and transmission shaft is by supporting with the coaxial transmission shaft bearing that connects 2 of cylinder.By the sealing of sealing impeller 4, sealing impeller 4 is for being fixed with the disk of 4 blade angles blade opposite with the helical blade angle between transmission shaft bearing 2 and the cylinder.
Embodiment 3:
A kind of liquid metal cadmium transfer pump, as shown in Figure 1, it comprises pump case 7, transmission shaft, blade, pump case 7 is upright cylinder, the outer epimere of cylinder is coated with thermal insulation layer 5, thermal insulation layer 5 is exposed at airborne part with cylinder and coats, transmission shaft is the screw axis 3 that is installed in the cylinder, screw axis 3 is driven by the belt pulley 1 that is arranged at its tail end, blade is the helical blade 6 that is surrounded on the screw axis, screw axis 3 is by the drive bearing supporting of being fixed in the cylinder top, and transmission shaft is by supporting with the coaxial transmission shaft bearing that connects 2 of cylinder.By the sealing of sealing impeller 4, sealing impeller 4 is for being fixed with the disk of 8 blade angles blade opposite with the helical blade angle between transmission shaft bearing 2 and the cylinder.
The utility model is work like this:
Motor drives belt pulley 1 rotation by belt, thereby realizes screw axis 3, helical blade 6,4 rotations of sealing impeller, and liquid cadmium enters from pump intake, by outlet and connecting tube thereof, cadmium liquid is directly delivered in the devices needed.During the pump running, 4 rotations of sealing impeller produce centrifugal force, form the certain negative pressure sealing, stop cadmium liquid to overflow from the transmission shaft bearing.Whole conveying is that full closed is carried, and has guaranteed the not oxidized formation tobacco of liquid cadmium.After the termination of pumping, because of the pump case skin has thermal insulation layer 5, cylinder pump case 7, screw axis 3, helical blade 6 can not cool off fast, residual cadmium liquid just can rapid crystallization in the pump, by the counter-rotating of screw axis 3, residual cadmium liquid in the pump can be discharged from pump intake, guarantee that transfer pump is excellent.
Claims (7)
1, a kind of liquid metal transfer pump, it comprises pump case, transmission shaft, blade, it is characterized in that: described pump case is upright cylinder, described transmission shaft is the screw axis that is installed in the cylinder, described blade is the helical blade that is surrounded on the screw axis, described screw axis is by the drive bearing supporting of being fixed in the cylinder top, and described transmission shaft is by supporting with the coaxial transmission shaft bearing that connects of cylinder.
2, liquid metal transfer pump according to claim 1 is characterized in that: described screw axis is driven by the belt pulley that is arranged at its tail end.
3, liquid metal transfer pump according to claim 1, it is characterized in that: by the sealing impeller seals, described sealing impeller is for evenly being provided with the disk of 3～8 blade angles blade opposite with the helical blade angle between described transmission shaft bearing and the cylinder.
4, liquid metal transfer pump according to claim 2, it is characterized in that: by the sealing impeller seals, described sealing impeller is for evenly being provided with the disk of 3～8 blade angles blade opposite with the helical blade angle between described transmission shaft bearing and the cylinder.
5, according to claim 3 or 4 described liquid metal transfer pumps, it is characterized in that: described sealing impeller is for evenly being provided with the disk of 4 or the 5 blade angles blade opposite with the helical blade angle.
6, liquid metal transfer pump according to claim 5 is characterized in that: described cylinder is coated with thermal insulation layer.
7, liquid metal transfer pump according to claim 6 is characterized in that: the part that described thermal insulation layer is positioned at cylinder on the liquid level from top to bottom coats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201594204U CN201351614Y (en) | 2008-11-26 | 2008-11-26 | Liquid metal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201594204U CN201351614Y (en) | 2008-11-26 | 2008-11-26 | Liquid metal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351614Y true CN201351614Y (en) | 2009-11-25 |
Family
ID=41375001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201594204U Expired - Fee Related CN201351614Y (en) | 2008-11-26 | 2008-11-26 | Liquid metal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351614Y (en) |
-
2008
- 2008-11-26 CN CNU2008201594204U patent/CN201351614Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101451532B (en) | Novel liquid metal transfer pump | |
| EP3527303A1 (en) | Aluminum alloy semi-solid forming method and device | |
| CN210390070U (en) | Cast sheet cooling device for lithium battery diaphragm production line | |
| CN201351614Y (en) | Liquid metal pump | |
| CN216032400U (en) | Polyethylene wire drawing cooling device | |
| CN211159733U (en) | Chemical industry is with high-efficient reation kettle | |
| CN116855757A (en) | Aluminum liquid smelting, degassing and deslagging equipment and use method thereof | |
| CN217302497U (en) | High-viscosity fluid pipeline convenient for exhaust | |
| CN111509940B (en) | Low-energy-consumption permanent magnet synchronous motor | |
| CN204134635U (en) | A kind of reactor of exterior coating | |
| CN106979688A (en) | Vacuum melting furnace | |
| CN203319177U (en) | Air-sealed screw conveyor | |
| CN110586880A (en) | Electric heating tilting type refined tellurium continuous casting device | |
| CN201728106U (en) | Magnetic transmission device for super-gravity rotating filler bed | |
| CN210449168U (en) | Be used for chemical material apparatus for producing | |
| CN204393188U (en) | Conduction oil rotates pancake baking device | |
| CN205288409U (en) | A high -efficient heat preservation formula reation kettle for lubricant production | |
| CN114988670B (en) | Glass bottle material line processing apparatus | |
| CN212282977U (en) | Mixed solution extraction device for chemical industry | |
| CN215157452U (en) | Coating heat preservation cauldron | |
| CN219141274U (en) | Freeze-drying device | |
| CN215672720U (en) | Centrifugal pump with high temperature resistant function | |
| CN221518291U (en) | High-efficient mixer of concrete | |
| CN110879003A (en) | Environmental protection new material processing equipment | |
| CN219318889U (en) | Continuous drying equipment for aluminum ingot production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091125 Termination date: 20151126 |