CN209669366U - Constant-volume blanking device - Google Patents
Constant-volume blanking device Download PDFInfo
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- CN209669366U CN209669366U CN201920227361.8U CN201920227361U CN209669366U CN 209669366 U CN209669366 U CN 209669366U CN 201920227361 U CN201920227361 U CN 201920227361U CN 209669366 U CN209669366 U CN 209669366U
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- pull rod
- seal
- constant
- discharge port
- volume chamber
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Abstract
The utility model relates to aluminium electroloysis aluminium production equipment fields.Constant-volume blanking device provided by the utility model includes hopper, constant volume chamber, cylinder and pull rod.The bottom of hopper is arranged in constant volume chamber, and the top of constant volume chamber is equipped with the feed inlet being connected to hopper, and the bottom of constant volume chamber is equipped with discharge port.The top of hopper is arranged in cylinder.Pull rod runs through constant volume chamber, and pull rod is equipped with first seal above feed inlet, and second seal is arranged in the lower section of discharge port in pull rod.First seal is reverse taper shape, and second seal is pyramidal.Cylinder includes piston rod, and piston rod bottom is equipped with sleeve joint hole.Socket part is arranged in the top of pull rod, and socket part is socketed among sleeve joint hole.Piston rod bottom is equipped with the first pin shaft across piston rod bottom and the socket part of pull rod.Pull rod with the pin shaft junction of piston rod there are along pull rod axial direction movement reserve section.The elastic element in compressive state is equipped in sleeve joint hole, the upper surface of the socket part of the lower end and pull rod of elastic element abuts.
Description
Technical field
The utility model relates to aluminum electrolysis equipment, and in particular to a kind of constant volume to feed at regular time and quantity into electrolytic cell
Blanking device.
Background technique
Constant-volume blanking device is the key equipment during electrolytic aluminium, and effect is to add oxygen into electrolytic cell at regular time and quantity
Change aluminium powder material.Usual constant-volume blanking device includes constant volume chamber, and the top of constant volume chamber has feed inlet, and bottom has discharge port.Constant volume
When chamber is fed, sealed bottom component closes the bottom discharge port of constant volume chamber, while the top discharge mouth opening state of constant volume chamber.
After constant volume chamber fills powder, top seal assembly closes the top feed mouth of constant volume chamber, while the bottom discharge port of constant volume chamber
It opens, the powder in constant volume chamber enters in electrolytic cell.As can be seen that the amount of each blanking is just the laden weight of constant volume chamber.If
The amount of each blanking then can generate large effect to electrolysis process according to variation, such as be electrolysed insufficient, waste raw material
Deng.
The common seal assembly of constant volume chamber has flat seal assembly, floor drain type seal assembly etc..Such constant volume chamber is close
Sealing assembly is opened in closed process by prolonged, can generate certain abrasion into and out of material mouth and seal assembly, thus
So that the sealing effect of constant volume chamber is bad, the case where being easy to produce material leakage, keep the amount of each constant-volume blanking not accurate enough.
Therefore, in view of the deficiencies of the prior art, it is necessary to design a kind of novel aluminium oxide feeding system, be supplied by improving
The exhaust system of material system, to improve the feed efficiency of aluminium oxide.
Summary of the invention
The purpose of this utility model is to provide a kind of novel aluminium oxide feeding systems, by the row for improving feeding system
Wind system, to improve the feed efficiency of aluminium oxide.
Constant-volume blanking device provided by the utility model includes hopper, constant volume chamber, cylinder and pull rod.Wherein, constant volume chamber is arranged
In the bottom of hopper, the top of constant volume chamber is equipped with the feed inlet being connected to hopper, and the bottom of constant volume chamber is equipped with discharge port.Cylinder is set
It sets in the top of hopper.Pull rod runs through constant volume chamber, and pull rod is provided with first seal above feed inlet, and pull rod is in discharge port
Second seal is arranged in lower section.First seal is reverse taper shape, and second seal is pyramidal.Cylinder includes piston rod, living
The bottom of stopper rod is equipped with sleeve joint hole.Socket part is arranged in the top of pull rod, and socket part is socketed among sleeve joint hole.Piston rod bottom is set
There is the first pin shaft of the socket part across piston rod bottom and pull rod.Pull rod is there are along pull rod with the pin shaft junction of piston rod
Section is reserved in axial movement.The elastic element in compressive state, and the lower end of elastic element and pull rod are equipped in sleeve joint hole
Socket part upper surface abut.
By above-mentioned scheme it is found that cylinder piston rod stretches out, pull rod is moved down, and first seal moves down and close feed inlet,
Discharge port is opened simultaneously.Cylinder piston rod retracts, and pull rod moves up, and second seal moves up and close discharge port, while feed inlet
It opens.The piston rod of cylinder with pull rod is connect by the first pin shaft, due to pin shaft connection be by the way of excessively cooperating,
The aperture for the pin hole that set the first pin shaft of confession passes through i.e. on piston rod and pull rod is greater than the diameter of axle of the first pin shaft, it is known that pull rod
Still there is certain movement to reserve section along axial direction, and the elastic element in compressive state set between piston rod and pull rod
It can will ensure that pull rod will not arbitrarily move in the state of routine in the stroke that section is reserved in the movement.
When feed inlet because of abrasion so that become large-sized and first seal because abrasion so that size becomes smaller after, be in
The elastic element of compressive state can generate downward thrust to pull rod, to keep the first seal of back taper and feed inlet close
In conjunction with to generate good sealing effect.
Since second seal closes discharge port when cylinder piston rod retracts, when discharge port and second seal generate
After abrasion, second seal can be made to close discharge port by the retraction amount of intensifying cylinder piston rod.
Preferably, elastic element includes the first spring.
Preferably, the first spring is compressed spring.
Preferably, the lower end of compressed spring is connected with spring pressuring plate, and the upper surface of the socket part of spring pressuring plate and pull rod is supported
It connects.
By above-mentioned scheme as it can be seen that compressed spring make first seal and feed inlet after wear still can produce it is good
Good sealing effect.
Preferably, the upper surface of second seal is fixed with connector, and the bottom end of connector and pull rod passes through the second pin
Axis is hinged.
From above-mentioned scheme.Second seal is hinged by connector and pull rod, can reduce second seal upper
Rise the abrasion loss during closing discharge port.
Preferably, the bottom of pull rod is equipped with the blind hole being axially arranged along pull rod, and the bottom of pull rod, which is fixed with, to be horizontally through
The fixing axle of blind hole, is provided with the second spring in tensional state in blind hole, the both ends of second spring respectively with connector
Top and fixed axis connection.
By above-mentioned scheme as it can be seen that after second seal and discharge port generate abrasion, the second spring of tensional state
Upward pulling force can be generated to second seal, it is ensured that the leakproofness between second seal and discharge port.
Preferably, feed inlet is set as the back taper feed inlet being adapted with the reverse taper shape of first seal.
Preferably, discharge port is set as the pyramidal adaptable conical discharge port with the second seal.
By above-mentioned scheme as it can be seen that feed inlet is designed as back taper, discharge port is designed as taper, first seal and charging
Mouth is plane-plane contact, and second seal and discharge port are plane-plane contact, enhances sealing effect, while can effectively slow down abrasion
Speed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model constant-volume blanking device.
Fig. 2 is the cylinder piston rod of the utility model and the connection schematic diagram of pull rod.
Fig. 3 is that this implements the connection schematic diagram that novel pull rod passes through connecting rod and second seal.
Specific embodiment
The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.In order to which the present embodiment is better described,
The certain attachmentes of attached drawing have omission, zoom in or out；To those skilled in the art, in attached drawing certain known features and
It illustrates to omit will be understood by.
Referring to Fig. 1, constant-volume blanking device includes hopper 1, constant volume chamber 2, cylinder 3 and pull rod 4.Wherein, hopper 1 be mainly used for
It is fed in constant volume chamber 2, feed window (not shown) is provided on hopper 1.
The bottom of hopper 1 is arranged in constant volume chamber 2, and two or more supports are provided between constant volume chamber 2 and the top of hopper 1
Bar 10, the top of constant volume chamber 2 are equipped with the feed inlet 21 being connected to hopper 1, and the bottom of constant volume chamber 2 is equipped with discharge port 22.Work as needs
When being fed to constant volume chamber 2, it is fed by being fed window into hopper 1, then the powder in hopper 1 passes through feed inlet 21 again
Into in constant volume chamber 2.
The top of hopper 1 is arranged in cylinder 3.Cylinder 3 includes piston rod 30, and the top of cylinder 3 is equipped with the first air inlet 31,
The lower part of cylinder 3 is equipped with the second air inlet 32.When 31 air inlet of the first air inlet, the second air inlet 32 is stopped the supple of gas or steam when closing, piston rod
30 stretch out.On the contrary, when the first air inlet 31 is stopped the supple of gas or steam closing, when the second 32 air inlet of air inlet, the retraction of piston rod 30.
Pull rod 4 runs through constant volume chamber 2, and pull rod 4 is provided with the first seal 51 of reverse taper shape in the top of feed inlet 21, draws
Pyramidal second seal 52 is arranged in the lower section of discharge port 22 for bar 4.
Corresponding, feed inlet 21 is set as the back taper discharge port 22 being adapted with the reverse taper shape of first seal 51,
Discharge port 22 is then set as the conical discharge port being adapted with the frustum knot shape of second seal 52.It can be seen that the first sealing
Part 51 and feed inlet 21 are plane-plane contact, and second seal 52 and discharge port 22 are plane-plane contact, so that sealing effect is enhanced,
And effectively slow down the speed of abrasion.
Referring to fig. 2, the bottom of piston 30 is equipped with sleeve joint hole 301.Socket part 41,41 sets of socket part is arranged in the top of pull rod 4
It connects among sleeve joint hole 301.
The bottom of piston rod 30 is equipped with the first pin shaft 61 across 30 bottom of piston rod and the socket part 41 of pull rod 4.First
Pin shaft 61 passes through the pin hole 302 being arranged on 30 bottom of piston rod and the pin hole 411 being arranged on the socket part 41 of pull rod 4.Pin
Hole 302 is equal with the aperture of pin hole 411.In conventional known design, pin shaft connection is all made of what pin shaft pin hole excessively cooperated
Mode.No exception in the present embodiment, the first pin shaft 61 is excessively to cooperate with pin hole 302 and pin hole 411.It can be seen that working as
After the interconnecting piece 41 of pull rod 4 is socketed with piston rod 30 and is connect by the first pin shaft 61, pull rod 4 still has the axial direction along pull rod 4
Movement reserve section, which reserves excessive size of the stroke between the first pin shaft 61 and pin hole 302 (pin hole 411) of section.
Certainly, as needed, in other examples, the first pin shaft 61 can be is interference fitted with pin hole 302, and the first pin shaft 61
Then excessively cooperate with pin hole 411, mistake of the stroke of the reserved section of the movement of such pull rod 4 between the first pin shaft 61 and pin hole 411
Spend size.Or first pin shaft 61 excessively cooperate with pin hole 302, and the first pin shaft 61 is then matched with the interference fit of pin hole 411 etc.
Conjunction mode.Here it no longer repeats one by one.Excessive size in the present embodiment, between the first pin shaft 61 and pin hole 302 (pin hole 411)
It is 5 to 10 millimeters, i.e., it is 5 to 10 millimeters that still there is pull rod 4 movement along pull rod axial direction, which to reserve section,.
The compressed spring 7 in compressive state is equipped in sleeve joint hole 301, and the lower end of compressed spring 7 is connected with spring
Tabletting 71, spring pressuring plate 71 are abutted with the upper surface 410 of the socket part 41 of pull rod 4.Certainly, the upper end of compressed spring 7 also abuts
The upper end of sleeve joint hole 301.As it can be seen that compressed spring 7 can generate an axial direction along pull rod 4 and downward thrust to pull rod 4, simultaneously
The thrust can be such that pull rod 4 does not move in the reserved section stroke range of the movement between the first pin shaft 61 and pin hole 302.At other
Embodiment in, other elastic elements in compressive state can be used to substitute, such as by high resiliency material in compressed spring 7
Elastic rubbery body made of expecting etc..It should be noted that elastic element must guarantee that elastic element is right always when being placed in sleeve joint hole 301
Pull rod 4 generates the elastic force axially downwardly along pull rod 4.
Referring to Fig. 3, the upper surface of second seal 52 is fixed with connecting rod 53, and the bottom end of connecting rod 53 and pull rod 4 passes through the
Two pin shafts 62 are hinged, and the top end face of connecting rod 53 is then equipped with shackle 530.In other examples, connecting rod 53 can be connected with other
Fitting replaces, such as universal joint.As can be seen that second seal 52 is hinged by connecting rod 53 and pull rod 4, in pull rod 4 by second
During sealing element 52 above mentions closing discharge port 22, second seal 52 enters the discharging of taper with the motion state of swing
Among mouth 22, to effectively avoid that greater impact may be generated due to aligning inaccurate between second seal 52 and discharge port 22
Rigid contact, and then reduce abrasion loss of the second seal 52 during rising closing discharge port 22.
The bottom of pull rod 4 is equipped with the blind hole 42 being axially arranged along pull rod 4, and the bottom of pull rod 4 is fixed with transverse direction
Across the fixing axle 43 of blind hole 42, be provided with the spring 8 in tensional state in blind hole 42, the both ends of spring 8 respectively with connecting rod
Shackle 530 and fixing axle 43 on 53 top end faces connect.It can be seen that the spring 8 of tensional state can be right always by connecting rod 53
Second seal 52 generates upward pulling force.
In summary and combine Fig. 1 to Fig. 3 it is found that the first air inlet 31 when cylinder 3 is stopped the supple of gas or steam closing, the second air inlet 32
When air inlet, piston rod 30 is retracted, and first seal 51 is located at the top of the feed inlet 21 of constant volume chamber 2 at this time, and feed inlet 22 is in
Opening state；Second seal 52 is then combined closely with the discharge port 22 of constant volume chamber 2, and discharge port 22 is in closed state.At this point,
Alumina powder can be injected in constant volume chamber 2 by hopper 1 and by feed inlet 21.After constant volume chamber 2 fills alumina powder,
3 first air inlet of cylinder, 31 air inlet, the second air inlet 32 are stopped the supple of gas or steam closing, and piston rod 30 stretches out, and second seal 52 is located at constant volume
The lower section of the discharge port 22 of chamber 2, discharge port 22 are in the open state；First seal 51 is then tight with the feed inlet 21 of constant volume chamber 2
Close combination, feed inlet 21 are in closed state, at this time in the alumina powder investment electrolytic cell in constant volume chamber 2, under realizing quantitatively
Material.
After first seal 51 and feed inlet 21 generate abrasion, initial between first seal 51 and feed inlet 21
Closing position can generate gap, at this time compressed spring 7 to pull rod 4 generate down thrust, make first seal 51 downwards displacement mend
It repays, to guarantee the leakproofness between first seal 51 and feed inlet 21.Certainly, first seal 51 downward shift compensation
Excessive size of the maximum distance between the first pin shaft 61 and pin hole 302 (pin hole 411), the i.e. movement of pull rod 4 axially are pre-
Stay section.
After second seal 52 and discharge port 22 generate abrasion, spring 8 can be by connecting rod 53 to second seal 52
Upward pulling force is generated, compensates 52 upward displacement of second seal, so that it is guaranteed that between second seal 52 and discharge port 22
Leakproofness.
It should be noted that closing discharge port 22 to the first in the utility model embodiment from second seal 52 and sealing
During this of the closing feed inlet 21 of part 52, the piston rod 30 of cylinder 3 stretches stroke much larger than the first pin shaft 61 and pin hole 302
Excessive size between (pin hole 411), and pulling force caused by cylinder 3 (or thrust) be greater than spring 7 or spring 8 institute energy bullet
Power.It can thus be seen that compressed spring 7 will not make second seal 52 when second seal 52 closes discharge port 22
At influence.
In addition, closing discharge port 22 in the present embodiment in second seal 52 and closing feed inlet 21 to first seal 52
This during, by set cylinder 3 air inflow come so that the piston rod 30 of cylinder 3 it is not fully extended in this process or
Person retracts, and can guarantee so pre- greater than the movement of pull rod 4 axially in first seal 51 and the generation abrasion loss of feed inlet 21
It, still can be by the air inflow of increase cylinder 3 come the flexible stroke of oversize piston bar 30, to guarantee 21 He of feed inlet after staying section
The leakproofness of discharge port 22, and extend the service life of equipment.
The above is only the preferred embodiment of the present invention, is not intended to limit the invention.In above scheme base
On plinth, the utility model can also make other improvement, such as set pull rod 3 to the structure etc. of adjustable length.It is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (8)
1. constant-volume blanking device, including hopper, constant volume chamber, cylinder and pull rod, the bottom of hopper is arranged in the constant volume chamber, described fixed
The top of cavity is equipped with the feed inlet being connected to the hopper, and the bottom of the constant volume chamber is equipped with discharge port, the cylinder setting
In the top of the hopper, the pull rod runs through the constant volume chamber, it is characterised in that:
The pull rod is provided with first seal above the feed inlet, and the pull rod is in the lower section of discharge port setting the
Two sealing elements；The first seal is reverse taper shape, and the second seal is pyramidal；
The cylinder includes piston rod, and the bottom of the piston rod is equipped with sleeve joint hole；Socket part, institute is arranged in the top of the pull rod
Socket part is stated to be socketed among the sleeve joint hole；The piston rod bottom is equipped with across the piston rod bottom and the socket part
The first pin shaft, it is reserved that the pull rod in the pin shaft junction with the piston rod is provided with the movement along the pull rod axial direction
Section；Elastic element is equipped in the sleeve joint hole, the lower end of the elastic element is abutted with the upper surface of the socket part.
2. constant-volume blanking device according to claim 1, it is characterised in that:
The elastic element includes the first spring.
3. constant-volume blanking device according to claim 2, it is characterised in that:
First spring is compressed spring.
4. constant-volume blanking device according to claim 3, it is characterised in that:
The lower end of the compressed spring is connected with spring pressuring plate, and the spring pressuring plate is abutted with the upper surface of the socket part.
5. constant-volume blanking device according to any one of claims 1 to 4, it is characterised in that:
The upper surface of the second seal is fixed with connector, and the bottom end of the connector and the pull rod passes through the second pin
Axis is hinged.
6. constant-volume blanking device according to claim 5, it is characterised in that:
The bottom of the pull rod is equipped with the blind hole being axially arranged along the pull rod, and the bottom of the pull rod, which is fixed with, to be horizontally through
The fixing axle of the blind hole is provided with the second spring in tensional state, the both ends point of the second spring in the blind hole
Not with the top of the connector and the fixed axis connection.
7. constant-volume blanking device according to any one of claims 1 to 4, it is characterised in that:
The feed inlet is set as the back taper feed inlet being adapted with the reverse taper shape of the first seal.
8. constant-volume blanking device according to any one of claims 1 to 4, it is characterised in that:
The discharge port is set as the pyramidal adaptable conical discharge port with the second seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920227361.8U CN209669366U (en) | 2019-02-18 | 2019-02-18 | Constant-volume blanking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920227361.8U CN209669366U (en) | 2019-02-18 | 2019-02-18 | Constant-volume blanking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209669366U true CN209669366U (en) | 2019-11-22 |
Family
ID=68569414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920227361.8U Active CN209669366U (en) | 2019-02-18 | 2019-02-18 | Constant-volume blanking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209669366U (en) |
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2019
- 2019-02-18 CN CN201920227361.8U patent/CN209669366U/en active Active
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