CN108136349A - Mixing device and sand mixed method - Google Patents
Mixing device and sand mixed method Download PDFInfo
- Publication number
- CN108136349A CN108136349A CN201580082021.5A CN201580082021A CN108136349A CN 108136349 A CN108136349 A CN 108136349A CN 201580082021 A CN201580082021 A CN 201580082021A CN 108136349 A CN108136349 A CN 108136349A
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- Prior art keywords
- center
- periphery
- mixing tank
- blend tool
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/044—Devices having a vertical stirrer shaft in a fixed receptacle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1123—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades sickle-shaped, i.e. curved in at least one direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
- B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
- B01F27/2321—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes having different inclinations, e.g. non parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/82—Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/752—Discharge mechanisms with arrangements for converting the mechanism from mixing to discharging, e.g. by either guiding a mixture back into a receptacle or discharging it
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The present invention relates to a kind of mixing device (1), with fixed and arranged in braced frame (3) and the mixing tank (2) including peripheral sidewalls (4) and bottom wall (5).Center blend tool (6) is rotatably arranged around the center mixer axis (7) of mixing tank, and with multiple scrapers (8) that peripheral sidewalls are extended to along bottom wall.Mixing tank with inclined location arrangements on the support frame so that center mixer axis relative to vertical direction tilt an angle.Mixing tank is divided into compared with lower part and upper section by horizontal first transversal plane for extending through mixing tank and extending including center mixer axis and in the plane for limiting bottom wall.At least one periphery blend tool (9,11) is equipped in the lower part of mixing tank.
Description
Technical field
The present invention relates to a kind of mixing device, the mixing device has mixing tank, center blend tool and at least one
Periphery blend tool, the mixing tank is fixedly placed in braced frame and including peripheral sidewalls and bottom wall, in described
Heart blend tool, which is rotatably arranged around the center mixer axis of mixing tank and has along bottom wall, extends to peripheral sidewalls
Multiple scrapers, at least one periphery blend tool is rotatably arranged around periphery mixer axis.
Background technology
The mixing device of the above-mentioned type can obtain under trade name DISA TM Mixer.
DE 39 01 774 discloses a kind of mixer of weighing of evacuation material for being particularly suitable for such as synthesis particle.It should
Mixer has cylindrical vessel, and the cylindrical vessel has drastically inclined lower base part, vessel is contributed to pass through
The outlet that no dead space is inserted into easily empties.Blend tool is surrounded can revolve relative to the axis of the cylinder axis displacement of cylindrical vessel
Turn ground arrangement.This mixer is mixed less suitable for use in the sand in Foundry Works.
FR 1.271.334 disclose another mixer, have drastically inclined mixer and spiral shape mixing work
Tool, the spiral shape blend tool close to mixer cylindrical wall it is non-central arrange.
EP 0 125 389 discloses a kind of equipment for handling flowable material, and the equipment includes mixing and holds
Device, the mixing vessel are rotated around it relative to the inclined central axis of vertical direction, the mixing vessel have wall and/or
Bottom scraper plate, exhaust openings and one or two rotation tool arranged non-centrally, the wall and/or bottom scraper plate are opposite
Substantially fixedly arrange that the exhaust openings are arranged in the bottom of mixing vessel, described in the circle tube inner wall of mixing vessel
One or two rotation tool arranged non-centrally is joined in material.In order to subtract while good treatment effect is provided
Few power consumption, and for the output that machine is improved relative to the active volume in machine, it is proposed that the mixing vessel is faced with secondary
Boundary's rotating speed is driven, and rotation tool is arranged in only at the downstream side on the vertex of mixing vessel, the space on upstream side its
In there is no accessory, and scraper plate is arranged near the vertex of mixing vessel.However, in the equipment of the type, because of rotation
Mixing vessel, it is necessary that external stability fender, this can make filling and emptying operation and sample collection complicate.
Invention content
The purpose of the present invention is providing a kind of mixing device of mentioned type by way of introducing, it is possible thereby to subtract
Few processing cycle time and energy expenditure.
With this object in view, in the obliquity of mixing tank arrangement on the support frame so that the center mixer of mixing tank
Mixing tank is divided into the relatively lower part positioned at lower position by axis relative to vertical direction inclination at an angle, the first transversal plane
With the upper section positioned at higher position, first transversal plane is extended through mixing tank and including center mixer axis
With both horizontal lines for extending in the plane for limiting bottom wall, and at least one periphery blend tool be arranged in mixing tank compared with
In lower part.
By inclined mixing tank and the combination of at least one periphery blend tool positioned in the relatively lower part of mixing tank
It is verified to provide both more efficient mixing and lower energy expenditure so that incorporation time and energy can be reduced simultaneously
Consumption.Another advantageous effect of inclined mixing tank is, can perform faster the emptying of mixer.Therefore, it is overall
Effect is, the energy expenditure that can be realized the processing cycle time of basic reduction and reduce substantially., it is surprising that test
Although as a result it has been shown that providing the energy expenditure of reduction, at least one periphery blend tool be not located in
In the case of in the relatively lower part of mixing tank, inclined mixing tank itself does not provide improved mixing resultant.In addition, test knot
Fruit can be promoted it has been shown that by the way that at least one periphery blend tool is located in the relatively lower part of mixing tank by tilting
Mixing tank obtain energy expenditure reduction.Therefore, it can be deduced that such conclusion is made us according to the present invention it is possible to realize
Surprised synergistic effect.
In embodiment, the center mixer axis of mixing tank with vertical direction into the angle between 5 degree and 30 degree
Degree tilt, the angle preferably between 7 degree and 25 degree, more preferably between 8 degree and 20 degree, most preferably between
Between 9 degree and 15 degree.As a result, according to the present invention it is possible to optimize inclined mixing tank and positioned in the relatively lower part of mixing tank
Periphery blend tool synergistic effect.
In embodiment, the scraper of center blend tool is evenly distributed around the center mixer axis of mixing tank, by
This adjacent scraper forms certain mutual angle, and at least one periphery blend tool is arranged so that any pair of periphery
The integral multiple of mutual angle and certain mutual angle of the adjacent scraper of center blend tool between blend tool
It is different., it is surprising that test is it has been proved that if two scrapers of center blend tool simultaneously pass through during rotation
Corresponding one in the blend tool of periphery, then undesirable antiphase effect can lead to increased energy expenditure.Test into
One step proves, by the arrangement for being combined at least one periphery blend tool with inclined mixing tank, can reduce or keep away
Exempt from this undesirable antiphase effect so that energy expenditure can be reduced in the case of no negatively influence mixing efficiency,
From without increasing incorporation time.On the other hand, test it has been proved that in the case of no inclined mixing tank at least one
The arrangement of a periphery blend tool can reduce energy expenditure, but reduce mixing efficiency simultaneously, cause incorporation time will
Have to extend.In fact, the general effect done so will be longer incorporation time and higher energy expenditure.Therefore, may be used
To conclude that, pass through the combination of the arrangement for being combined at least one periphery blend tool and inclined mixing tank
Effect can realize synergistic effect.
In embodiment, at least one periphery blend tool is arranged so that the phase between any pair of periphery blend tool
The integral multiple of certain mutual angle of the mutual angle scraper adjacent with center blend tool has been differed more than 3%, excellent
Selection of land is more than 5%, and is most preferably more than 7%.Thus, it might even be possible to more efficiently reduce or avoid and is above-mentioned undesirable anti-
Phase effect so that or even can more efficiently reduce energy expenditure in the case where not extending necessary incorporation time.
In embodiment, mixing device include the first periphery blend tool and the second periphery blend tool, described first week
Side blend tool is rotatably disposed within the of center mixer axis around mixing tank around the first periphery mixer axis
One mixer angular position, second periphery blend tool are rotatably disposed within around the second periphery mixer shafts line and surround
Second mixer angular position of the center mixer axis of mixing tank, and the first periphery blend tool and the mixing of the second periphery
Tool is arranged in the relatively lower part of mixing tank.The embodiment can be more effective for relatively large mixer.
In structure in especially advantageous embodiment, center blend tool includes the center mixer axis around mixing tank
90 degree of mutual angle, and the first periphery blend tool and is consequently formed in equally distributed four scrapers, adjacent scraper
Two periphery blend tools are arranged so that the first mixer Angle Position and the second mixer Angle Position have been differed between 73 degree and 87
Between degree, preferably between 78 degree and 85 degree, most preferably between 82 and 84 degree.Thus, it is possible to it efficiently reduces
Or above-mentioned undesirable antiphase effect is avoided, and therefore can efficiently reduce energy expenditure.In addition, on the blend tool of center
The benefit of scraper of even number can be, can be to avoid the cross force in the blend tool of center so that there is only
Torque.
In embodiment, center blend tool fits along the sand in main direction of rotation rotation mixing tank, thus in batch mixing
Updrift side is limited in tank and downstream direction, the first periphery blend tool are located at upstream relative to the second periphery blend tool, and
And first mixer Angle Position differed between 10 degree and 55 degree with the Angle Position of the first transversal plane, preferably between 20
Between degree and 45 degree, and it is most preferably between 30 degree and 35 degree.It, can be real simultaneously as a result, according to performed test
Now even more efficient mixing and even lower energy expenditure.
In embodiment, the first periphery blend tool is arranged to relative to the bottom wall of mixing tank than the second periphery blend tool
It is high.As a result, according to performed test, even more efficient mixing and even lower energy expenditure can be realized simultaneously.
In a preferred embodiment, center blend tool fits along main direction of rotation rotation, and at least one periphery is mixed
Conjunction tool fits along the direction of rotation rotation opposite with main direction of rotation.
In a preferred embodiment, center blend tool fits along the rotation of main direction of rotation, center blend tool it is each
Scraper all extends to free end at the peripheral sidewalls of mixing tank from center hub, each scraper from center hub along with master
The opposite direction of rotation bending in direction of rotation, and the free end of each scraper is both provided with blade tip, the blade tip
End with along main direction of rotation towards mixing tank bottom wall it is inclined above.
In embodiment, the corresponding periphery mixer axis seen in the corresponding radial cross-section of mixing tank is in
Heart mixer shafts line forms at least 2 degree, the respective angles for being preferably at least 3 degree and most preferably at least 4 degree so that mixes on periphery
It is at least slightly directed toward center mixer axis respectively in the lower end of conjunction tool.It, can be real simultaneously as a result, according to performed test
Now even more efficient mixing and even lower energy expenditure.
In a preferred embodiment, peripheral sidewalls are around its center mixer shafts line rotational symmetry, for example, peripheral sidewalls
It is made of conical section and/or cylindrical sections, and wherein, center mixer axis is vertical with bottom wall.
In a preferred embodiment, peripheral sidewalls are cylindrical walls, and bottom wall to arrange at a right angle with cylindrical wall, and periphery
The center mixer axis of side wall is the cylindrical shape axis of cylindrical wall.
In embodiment, pass through batch mixing inside and with what the first transversal plane extended at a right angle comprising center mixer axis
Second transversal plane of tank defines the minimum point Angle Position in the relatively lower part of mixing tank and the upper section in mixing tank
In peak Angle Position, and be disposed with outlet port close to bottom wall in minimum point angular position in peripheral sidewalls.As a result,
The emptying of mixer can be even performed faster, and result can realize the reduced processing cycle time.
In embodiment, mixing device is controlled so as to by opening outlet port, rotation center blend tool and at least
The basic rotating speed for reducing the first periphery blend tool and the second periphery blend tool makes the first periphery blend tool and second week
Side blend tool stops emptying mixing tank.As a result, according to test, the emptying of mixer can be optimized, and result can be with
Realize the reduced processing cycle time.
In structure in especially advantageous embodiment, center blend tool is provided with center circle taper top section, hides
Cover the upper end of the center mixing axis of face installation center blend tool.Thus, it is possible to improve the efficiency of mixing device, reason
Being the cycle of the sand in mixing tank can be promoted so that can be in the sand that the central portion of mixing tank moves downward
Slide downward on center circle taper top section, and center blend tool is thus directed outward at the bottom wall of mixing tank
Scraper.
In embodiment, mixing tank is provided with horizontal head cover, is disposed in the horizontal head cover and gives sand hopper.As a result,
Can vertical axis be surrounded in the case where not making to be inclined relative to horizontal to sand hopper with difference as needed to sand hopper
Angle orientation arrangement.
In structure in especially advantageous embodiment, the construction opening in horizontal head cover is suitable for giving sand hopper so that gives
Sand hopper can surround vertical axis and be orientated arrangement at least four different angles.As a result, to sand hopper can as needed with
Simple mode is orientated arrangement around vertical axis with different angles.
In structure in especially advantageous embodiment, each periphery blend tool is corresponding on horizontal head cover by being arranged in
Direct drive motor driven by corresponding spacer flanger part, corresponding spacer flanger part is arranged on horizontal head cover
And with corresponding motor connecting flange, corresponding motor connecting flange is suitable for the corresponding of periphery mixer axis
Angle.
In structure in especially advantageous embodiment, mixing tank is provided with the pitched cover being arranged in below horizontal head cover,
Each periphery blend tool is by the corresponding direct drive motor that is arranged on pitched cover by corresponding spacer flanger part
It drives, corresponding spacer flanger part is arranged on pitched cover and with corresponding motor connecting flange, the phase
The motor connecting flange answered is suitable for the corresponding angle of corresponding periphery mixer axis.
The invention further relates to a kind of method of the mixed sand in mixing tank, the mixing tank is fixedly maintained at support frame
On frame and including peripheral sidewalls and bottom wall, whereby center blend tool around mixing tank the rotation of center mixer axis and
With extending to peripheral sidewalls and cross multiple scrapers that bottom wall fiercelys attack, and periphery blend tool at least one whereby is around week
Side mixer axis rotation.
The method is characterized in that mixing tank is maintained in obliquity on the support frame so that in mixing tank
Mixing tank is divided into positioned at lower position by heart mixer axis relative to the angled inclination of vertical direction, the first transversal plane
Relatively lower part and the upper section positioned at higher position, first transversal plane by mixing tank extend and including center
Mixer axis and both horizontal lines for extending in the plane for limiting bottom wall, and at least one periphery blend tool is in batch mixing
It is rotated in the relatively lower part of tank.Thus, it is possible to obtain features described above.
In embodiment, the center mixer axis of mixing tank with vertical direction into the angle between 5 degree and 30 degree
Degree tilt, the angle preferably between 7 degree and 25 degree, more preferably between 8 degree and 20 degree, most preferably between
Between 9 degree and 15 degree.Thus, it is possible to obtain features described above.
In embodiment, during center blend tool rotates, two scrapers of center blend tool do not pass through simultaneously
The corresponding periphery mixer axis of two of a pair of of periphery blend tool.Thus, it is possible to obtain features described above.
In embodiment, during center blend tool rotates, when a scraper of center blend tool is mixed by periphery
During the periphery mixer axis of conjunction tool, around center blend tool any other scraper center mixer axis relative to
The Angle Position of the periphery mixer axis of another periphery blend tool is kept off in 3 degree, is preferably kept off in 4 degree, more excellent
It is selected as keeping off in 5 degree, most preferably keep off in 6 degree.Thus, it is possible to obtain features described above.
In embodiment, the first periphery blend tool is at the first mixer angle of the center mixer axis around mixing tank
Around the first periphery mixer axis rotation at position, and the second periphery blend tool is in the center mixer around mixing tank
Second mixer angular position of axis rotates, and the first periphery blend tool and second around the second periphery mixer shafts line
Periphery blend tool rotates in the relatively lower part of mixing tank.Thus, it is possible to obtain features described above.
In embodiment, center blend tool rotates the sand in mixing tank along main direction of rotation, thus in mixing tank
It limits updrift side and downstream direction, the first periphery blend tool encounters sand relative to the second periphery blend tool in upstream, and
And first mixer Angle Position differed between 10 degree and 55 degree with the Angle Position of the first transversal plane, preferably between 20
Between degree and 45 degree, and it is most preferably between 30 degree and 35 degree.Thus, it is possible to obtain features described above.
In embodiment, the first periphery blend tool is arranged to relative to the bottom wall of mixing tank than the second periphery blend tool
It is high.Thus, it is possible to obtain features described above.
In embodiment, center blend tool is rotated along main direction of rotation, and at least one periphery blend tool edge
The direction of rotation rotation opposite with main direction of rotation.Thus, it is possible to obtain features described above.
In embodiment, center blend tool is rotated along main direction of rotation, each scraper of center blend tool from
Center hub extends to the free end at the peripheral sidewalls of mixing tank, each scraper from center hub along with main direction of rotation
Opposite direction of rotation bending, and the free end of each scraper is both provided with blade tip, the blade tip relative to
The bottom wall of mixing tank promotes sand along upwardly direction.Thus, it is possible to obtain features described above.
In embodiment, the corresponding periphery mixer axis seen in the corresponding radial cross-section of mixing tank is in
Heart mixer shafts line forms at least 2 degree, the respective angles for being preferably at least 3 degree and most preferably at least 4 degree so that mixes on periphery
It is at least slightly directed toward center mixer axis respectively in the lower end of conjunction tool.Thus, it is possible to obtain features described above.
In embodiment, peripheral sidewalls are around its center mixer shafts line rotational symmetry, for example, peripheral sidewalls are by justifying
Conical section and/or cylindrical sections are formed, and wherein, center mixer axis is vertical with bottom wall.Thus, it is possible to obtain above-mentioned spy
Sign.
In embodiment, peripheral sidewalls are cylindrical walls, and bottom wall to arrange at a right angle with cylindrical wall, and peripheral sidewalls
Center mixer axis be cylindrical wall cylindrical shape axis.Thus, it is possible to obtain features described above.
In embodiment, pass through batch mixing inside and with what the first transversal plane extended at a right angle comprising center mixer axis
Second transversal plane of tank defines the minimum point Angle Position in the relatively lower part of mixing tank and the upper section in mixing tank
In peak Angle Position, and sand mixing after, be disposed in peripheral sidewalls in minimum point angular position close to bottom wall
Outlet port.Thus, it is possible to obtain features described above.
In embodiment, after sand mixing, by opening outlet port, rotation center blend tool and at least basic
It reduces the rotating speed of the first periphery blend tool and the second periphery blend tool or mixes the first periphery blend tool and the second periphery
Conjunction tool stops emptying mixing tank.Thus, it is possible to obtain features described above.
In embodiment, center blend tool is provided with center circle taper top section, covers center installed above and mixes
The upper end of the center mixing axis of conjunction tool, and sand is moved downward in the central portion of mixing tank and in center circle taper top
Slide downward on portion part, and the scraper of center blend tool is thus directed outward at the bottom wall of mixing tank.As a result,
Features described above can be obtained.
In embodiment, mixing tank is provided with horizontal head cover, is disposed in the horizontal head cover and gives sand hopper.As a result,
Features described above can be obtained.
In embodiment, the construction opening in horizontal head cover is suitable for giving sand hopper so that can be surrounded to sand hopper perpendicular
To axis arrangement is orientated at least four different angles.Thus, it is possible to obtain features described above.
In embodiment, each periphery blend tool is borrowed by the corresponding direct drive motor being arranged on horizontal head cover
Corresponding spacer flanger part is helped to drive, corresponding spacer flanger part is arranged on horizontal head cover and with corresponding horse
Up to connecting flange, corresponding motor connecting flange is suitable for the corresponding angle of periphery mixer axis.Thus, it is possible to it obtains
Obtain features described above.
In embodiment, mixing tank is provided with the pitched cover being arranged in below horizontal head cover, each periphery blend tool
All driven by the corresponding direct drive motor being arranged on pitched cover by corresponding spacer flanger part, it is corresponding
Spacer flanger part is arranged on pitched cover and has corresponding motor connecting flange, and corresponding motor connecting flange is fitted
For the corresponding angle of corresponding periphery mixer axis.Thus, it is possible to obtain features described above.
Description of the drawings
The present invention is explained in greater detail by the example of embodiment now with reference to very schematical attached drawing, attached
In figure：
Fig. 1 is mixing device obliquely see from above along the direction of center mixer axis, according to the present invention
Vertical view, it is removed to sand hopper whereby；
Fig. 2 is the sectional view intercepted by a part for mixing device along the line II-II in Fig. 1；
Fig. 3 is the radial cross-section intercepted by a part for mixing device along the line III-III in Fig. 1；
Fig. 4 is the side view of another embodiment of the mixing device in Fig. 1；
Fig. 5 is the perspective view of another embodiment of the mixing device in Fig. 1；
Fig. 6 is the side elevation in partial section of the embodiment of mixing device；It, which shows to be arranged in first position, gives sand material
Bucket；
Fig. 7 is the vertical view of the mixing device in Fig. 6, show to be arranged in first position to sand hopper；
Fig. 8 is the side elevation in partial section of the embodiment of mixing device, show arrange in the second position give sand material
Bucket；
Fig. 9 is the vertical view of the mixing device in Fig. 8, show to arrange in the second position to sand hopper；
Figure 10 is the vertical view of the center blend tool of the mixing device in Fig. 1 to Fig. 3；
Figure 11 is the side elevation in partial section of the center blend tool in Figure 10；
Figure 12 is the diagram for the power consumption of the mixing device of the prior art；And
Figure 13 is the diagram for the power consumption of mixing device according to the present invention.
Specific embodiment
Through the description of different embodiments of the invention below, similar element is usually via identical reference numeral table
Show.
The present invention relates to the mixing devices suitable for sand and water are mixed, and are preferred for using in sand mo(u)ld machine.Fig. 2 shows
Mixing device 1 with mixing tank 2, the mixing tank 2 are fixedly placed in braced frame 3 and including 4 Hes of peripheral sidewalls
Bottom wall 5.Center blend tool 6 is rotatably arranged around the center mixer axis 7 of mixing tank 2 and with along bottom wall 5
Extend to four scrapers 8 of peripheral sidewalls 4.If seen in Fig. 1, the first periphery blend tool 9 surrounds the first periphery mixer
Axis 10 is rotatably disposed within the first mixer Angle Position P of the center mixer axis 7 around mixing tank 21Place.In Fig. 3
Shown in sectional view in the first mixer Angle Position is shown.Second periphery hybrid instrument 11 surrounds the second periphery mixer shafts line
12 are rotatably disposed within the second mixer Angle Position P of the center mixer axis 7 around mixing tank 22Place.Institute in fig. 2
Second mixer Angle Position is shown in the sectional view shown.
If seen in figure 2 and figure 3, mixing tank 2 is arranged in the obliquity in braced frame 3 so that mixing tank
Center mixer axis 7 is tilted relative to vertical direction M at an angle.In an illustrated embodiment, angle M is about 8 degree.So
And according to the present invention, angle M can be between 5 degree and 30 degree, preferably between 7 degree and 25 degree, more preferably be situated between
Between 8 degree and 20 degree, most preferably between 9 degree and 15 degree.Braced frame 3 is provided with unshowned stabilizer blade or similar
Object is suitable for braced frame 3 being located on horizontal-extending floor so that mixing tank 2 is relative to vertical direction into the angle
M is spent to tilt.During the operation of mixing device 1, sand object that peripheral sidewalls 4 and bottom wall 5 are directly just being mixed in mixing device 1
Material contact.
Fig. 1 is mixing device obliquely see from above along the direction of center mixer axis 7, according to the present invention
1 vertical view.Fig. 1 shows the first transversal plane 13, and first transversal plane 13 is extended through mixing tank 2 and including center
Mixer axis 7 and both unshowned horizontal lines for extending in the plane for limiting bottom wall 5.First transversal plane 13 is by batch mixing
Tank 2 is divided into the relatively lower part 14 positioned at lower position and the upper section 15 positioned at higher position.First periphery blend tool, 9 He
Second periphery blend tool 11 is arranged in the relatively lower part 14 of mixing tank 2.In general, according to the present invention, at least one periphery is mixed
Conjunction tool is arranged in mixing tank 2, and at least one of these periphery blend tools are arranged in the relatively lower part of mixing tank 2
In 14.
In the embodiments illustrated in the figures, center blend tool 6 is equal including the center mixer axis 7 around mixing tank 2
Four scrapers 8 of even distribution.Adjacent scraper 8 forms 90 degree of mutual angle as a result,.First periphery blend tool 9 and second
Periphery blend tool 11 is arranged so that the first mixer Angle Position and the second mixer Angle Position has differed about 83 degree of angle
P12.However, according to the present invention, the first periphery blend tool 9 and the second periphery blend tool 11 may be disposed so that first is mixed
Clutch Angle Position and the second mixer Angle Position have differed the angle P between 73 degree and 87 degree12, the angle P12It is preferred that
For between 78 degree and 85 degree, most preferably between 82 degree to 84 degree.
If test it has been proved that two scrapers 8 of center blend tool 6 during rotation simultaneously or at substantially the same time
By corresponding one in periphery blend tool 9,11, then undesirable antiphase effect can lead to increased energy expenditure.It is logical
Cross the first periphery blend tool 9 and the second periphery blend tool 11 cloth just referred to above being combined with inclined mixing tank 2
It puts, can reduce or avoid this undesirable antiphase effect so that can be in the situation without negatively influencing mixing efficiency
Decline low-energy-consumption, from without increasing incorporation time.
In other embodiments, center blend tool 6 can include equally distributed other around center mixer axis 7
The scraper 8 of quantity so that adjacent scraper forms certain mutual angle.In this case, in general, according to the present invention, first
Blend tool 9 and second periphery blend tool 11 in periphery is arranged so that the first mixer Angle Position P1With the second mixer angle position
Put P2Angle P is differed12, the angle P12Certain mutual angle of adjacent scraper 8 with center blend tool 6
Integral multiple is different.In the case where being disposed with greater number of periphery blend tool, for example, three, four or even more
Periphery blend tool, these periphery blend tools be arranged so that mutual angle between any pair of periphery blend tool with
The integral multiple of certain mutual angle of the adjacent scraper of center blend tool is different.Thus, it is possible to it is carried more than reducing
And undesirable antiphase effect.
Preferably, periphery blend tool is arranged so that the mutual angle between any pair of periphery blend tool and center
The integral multiple of certain mutual angle of the adjacent scraper of blend tool has been differed more than 3%, preferably more than 5%,
And most preferably it is more than 7%.Thus, it is possible to above-mentioned undesirable antiphase effect is reduced or avoided substantially.
In the embodiments illustrated in the figures, center blend tool 6 is fitted along in main direction of rotation R rotations mixing tank 2
Thus sand limits updrift side and downstream direction in mixing tank 2.If seen in Fig. 1, the first periphery blend tool 9 is opposite
It is located at upstream in the second periphery blend tool 12.When the Angle Position of the first transversal plane 13 in the top half in Fig. 1 is set
When being set to zero degree, preferably the first mixer Angle Position P1It is between 10 degree and 55 degree, preferably between 20 degree and 45
Between degree, most preferably between 30 degree and 35 degree.In the embodiment shown in fig. 1, the first mixer Angle Position P1It is
32 degree, and the second mixer Angle Position P2It is 115 degree.
Preferably, the first periphery blend tool 9 is arranged to relative to the bottom wall 5 of mixing tank 2 than the second periphery blend tool
11 is high.
Preferably, center blend tool 6 fits along main direction of rotation R rotation, and the first periphery blend tool 9 and the
Two periphery blend tools 11 fit along the direction of rotation r rotation opposite with main direction of rotation R.In Fig. 1, main direction of rotation R
It is counterclockwise.
Center blend tool 6 fits along main direction of rotation R rotations, and as shown in Figure 10, center blend tool 6
Each scraper 8 extends to the free end 17 at the peripheral sidewalls 4 of mixing tank 2 from center hub 16 so that each scraper 8
It is bent from center hub 16 along the direction of rotation opposite with main direction of rotation R.S-shaped is made in two opposite scrapers 8 together as a result,
Configuration.The free end 17 of each scraper 8 is both provided with blade tip 18, and the blade tip 18 has along main rotation side
49 above bottom wall 5 to R towards mixing tank 2 is inclined.In sand mixing periods, blade tip can be relative to the bottom of mixing tank 2
Wall 5 promotes sand along upwardly direction.
Such as see in Fig. 3 and Fig. 2, in the corresponding radial cross-section of mixing tank 2, the first periphery mixer axis 10
Corresponding angle m is formed with center mixer axis so that the first periphery blend tool 10 with the second periphery mixer shafts line 11
It is at least slightly directed toward center mixer axis 7 respectively with the lower end of the second periphery blend tool 11.In an illustrated embodiment,
Corresponding angle m is equal to 5 degree；However, in general, according to the present invention, the angle can be at least 2 degree, preferably at least 3 degree,
And most preferably at least 4 degree.
In an illustrated embodiment, the peripheral sidewalls 4 of mixing tank 2 are cylindrical walls, and bottom wall is at a right angle with cylindrical wall
Arrangement, and the center mixer axis 7 of the peripheral sidewalls 4 of mixing tank 2 is the cylindrical shape axis of cylindrical wall.However, in general,
According to the present invention, peripheral sidewalls 4 are around its 7 rotational symmetry of center mixer shafts line, for example, peripheral sidewalls 4 are by cone
Section and/or cylindrical sections are formed.Center mixer axis 7 is preferably vertical with bottom wall 5.
Fig. 1 also illustrates the second transversal plane 19, and second transversal plane 19 is extended through mixing tank 2, mixed comprising center
Including clutch axis 7, and extend at a right angle with the first transversal plane 13.Second transversal plane 19 is defined in mixing tank 2
Compared with the minimum point Angle Position L of the bottom wall 5 in lower part 14PWith the peak angle of the bottom wall 5 in the upper section 15 of mixing tank 2
Position HP.In minimum point Angle Position L in peripheral sidewalls 4PPlace is disposed with outlet port 20 close to bottom wall 5.
By computer 21, mixing device 1 is controlled so as to after sand mixes by opening outlet 20, rotation center mixes
Tool 6 and at least basic rotating speed for reducing mixing tank 2 stop the first periphery blend tool 9 and the second periphery blend tool 11
Stop emptying mixing tank 2.The rotation of center blend tool 6 can promote emptying operate, and the first periphery blend tool 9 and/or
The rotation of second periphery blend tool 11 can slow down emptying operation in some cases.
As shown in Fig. 2, Fig. 3 and Figure 11, center blend tool 6 is provided with center circle taper top section 22, covers
The upper end of the center mixing axis 23 of center blend tool 6 installed above.In sand mixing periods, sand is in the central part of mixing tank 2
Office moves downward and the slide downward on center circle taper top section 22, and thus at the bottom wall 5 of mixing tank 2 by
The outer scraper 8 for directing into center blend tool 6.Center blend tool 6 drives by drive motor 46 via angle gear-box 47.
As shown in Fig. 6 to Fig. 9, mixing tank 2 is provided with horizontal head cover 24, be disposed in the horizontal head cover 24 also by
Be designated as batch hopper to sand hopper 25.It is noted that in Fig. 6 and Fig. 8, also non-installation center blend tool 6.In horizontal head cover
In 24, construction opening 26 is adapted for engagement with to the generally rectangular bottom part of sand hopper 25 so that can be surrounded to sand hopper 25
Vertical axis is orientated arrangement at least four different angles.Sand can be easily adapted for use in the orientation of sand hopper 25 defeated as a result,
The position of machine is sent, the sand conveyer is suitable for sand being filled into in sand hopper 25.In configuration as shown in figs. 8 and 9,
To sand hopper 25 90 degree have been had rotated around the vertical axis relative to Fig. 6 and configuration shown in fig. 7.Certainly, it installs
Opening 26 can have different forms, to coordinate to sand hopper 25 so that can rotate to be mounted on not to sand hopper 25
In same position.In the shown embodiment, construction opening 26 is at least basic square form.In alternative configuration,
Bottom part to sand hopper 25 is circular, and corresponding construction opening 26 is circular.
Unshowned weighing unit there are three being set in known manner to sand hopper 25.When in sand hopper 25
During the sand of weight needed for acquisition, this is detected by weighing sensor, and is opened to the bottom door of sand hopper 25 by pneumatic cylinder so that
Sand is fed in mixing device 1.In addition, mixing device 1 is provided with unshowned water supply installation, the water supply installation includes water
Case, the water tank are sufficiently large to receive the amount needed for for the batch operation at least once of mixing device, for example, 100 liters.Water tank
Multiple weighing sensors are additionally provided with, to be supplied to mixing tank 2 from water tank with dampening, the weight for being present in the water in water tank can
Continuously to be weighed.First, the larger amount of water (for example, 90 kilograms) for being estimated as almost being sufficient to humidity needed for sand is passed through
It is filled into mixing tank by larger control valve.This is preferably simultaneously carried out with sand padding.For example, the larger amount of water
It can be supplied in mixing tank in 15 seconds.Larger control valve can provide quick water filling.Then, it mixes and grasps in sand
After having been carried out certain time, the sand humidity in mixing tank 2 is measured, and calculate required additional sand weight.So
Afterwards, the less amount of water (for example, 4 kilograms) for being estimated as being sufficient to humidity needed for sand is filled into via smaller control valve mixed
In batch can.Smaller control valve can provide precision.
In figures 4 and 5 in shown embodiment, each periphery blend tool 9,11 is by being arranged on horizontal head cover 24
Corresponding direct drive motor 27,28 driven by corresponding spacer flanger part 29,30, corresponding spacer flanger part
29th, it 30 is arranged on horizontal head cover 24 and with corresponding motor connecting flange 31,32, corresponding motor connecting flange
31st, 32 be suitable for corresponding periphery mixer axis 10,12 corresponding angle.Due to direct drive motor 27,28 with it is existing
Compared to being more compact, which promotes to the above-mentioned design of sand hopper 25, whereby to sand hopper 25 tape drive of technology
Vertical axis can be surrounded, arrangement is orientated with different angles.In addition, direct drive motor provides dimension more easier than tape drive
Shield.
In embodiment shown in Fig. 2, Fig. 3 and Fig. 6 to Fig. 9, mixing tank 2, which is provided with, to be arranged under horizontal head cover 24
The pitched cover 33 of side.Each periphery 9,11 corresponding direct drive motor by being arranged on pitched cover 33 of blend tool
27th, it 28 is driven by corresponding spacer flanger part 34,35, corresponding spacer flanger part 34,35 is arranged in pitched cover
On 33 and with corresponding motor connecting flange 36,37, corresponding motor connecting flange 36,37 is suitable for corresponding all
The corresponding angle of side mixer axis 10,12.Each periphery blend tool 9,11 connects by corresponding flexible clutch 38
It is connected to corresponding drive motor 27,28.
Figure 12 and Figure 13 shows the power about the mixing device for the mixed with about 3000 kilograms of every batch of
Test result is compared in the simulation of consumption.Figure 13 is the work(for mixing device according to the present invention 1 as shown in Figure 1 to Figure 3
The diagram of rate consumption.Figure 12 is the corresponding diagram for the power consumption of the mixing device of the prior art, the prior art
Mixing device is corresponding with the mixing device 1 shown in Fig. 1 to Fig. 3 in terms of size and mulling ability and with corresponding
Center blend tool, but cause center mixer axis for vertical mixing tank with being vertically arranged into, and with phase
The two periphery blend tools in diametrically opposite arranged for center mixer axis.In the mixing device of two tests
Heart blend tool is rotated with about 26rpm.The periphery blend tool of the device of the prior art is rotated with about 1200rpm, and according to
The periphery blend tool of the mixing device 1 of the present invention is rotated with about 1000rpm.As described previously for the institute such as in Fig. 1 to Fig. 3
The mixing device according to the present invention 1 shown, the first mixer Angle Position P1It it is 32 degree, the first mixer Angle Position and second mixes
Clutch Angle Position has differed about 83 degree of angle P12, mixing tank tilts relative to vertical direction with about 8 degree of angle M, and the
One periphery mixer axis 10 and the second periphery mixer shafts line 11 form about 5 degree of corresponding angle with center mixer axis 7
Spend m.The periphery mixer axis of the periphery blend tool of the device of the prior art forms about 2 degree of phase with center mixer axis
The angle answered.
Figure 12 shows the power consumption of center blend tool by curve 39 and shows its average value by line 40.This
Outside, Figure 12 shows the power consumption of one in the blend tool of periphery by curve 41 and shows its average value by line 42.
In fig. 12 as can be seen that in the mixing device of the prior art, center blend tool consumes about 140 kilowatts
Average value, and two periphery blend tools consume about 115 kilowatts of overall average (each periphery blend tool consumption ratio 60
It is kilowatt less slightly).It is about 255 kilowatts that this, which consumes the total mean power of the mixing device of the prior art,.
Figure 13 shows the power consumption of center blend tool 6 by curve 43.In addition, Figure 13 shows first by curve 44
The power consumption of periphery blend tool 9 and the power consumption that the second periphery blend tool 11 is shown by curve 45.
In fig. 13 as can be seen that in mixing device 1 according to the present invention, center blend tool 6 consumes about 130,000
Watt average value, and two periphery blend tools 9,11 consume about 100 kilowatts of overall average (each periphery blend tool
About 50 kilowatts of consumption).It is about 230 kilowatts that this, which so that the total mean power of mixing device 1 according to the present invention consumes,.
Therefore, simulation compare test as a result, mixing device 1 according to the present invention is fewer than the mixing device of the prior art
The power of consumption 10%.
However, according to the test result of simulation, to realize the incorporation time needed for satisfied mixing resultant also from existing skill
The mixing device of art is reduced to mixing device 1 according to the present invention.The mixing device of the prior art needs the mixing ability of 120 seconds
Satisfied effect is obtained, and mixing device according to the present invention 1 needs 110 seconds.
On the basis of the above, another of simulation comparison test by a collection of sand as a result, be mixed into satisfactory mixing
Total power consumption needed for effect reduces nearly 20%.
It is further noted that according to experiment, mixing device 1 according to the present invention can be held in about 10 seconds
Row sand and water padding, this is usually faster than depending on the standard prior program of leading pressure when only supplying water from tap.
It is further noted that according to test, compared with about 30 seconds of the mixing device of the prior art, according to this
The mixing device 1 of invention can perform emptying operation in about 20 seconds.
In conclusion it is estimated that compared with the mixing device of the prior art, the total of mixing device 1 according to the present invention criticizes
Processing time can reduce at least 10% to 15%.
It should be noted that throughout the specification, no matter when refer to sand, it should be understood that any conjunction can be applied
Suitable granule materials.Sand or granule materials usually can be so-called greensand (also referred to as clay-bonded sand), i.e., based on quartz sand, glue
The moulding material of soil, coal dust and water.But it is also possible to use other granular materials and bonding system.
Reference numerals list
HPPeak Angle Position
LPMinimum point Angle Position
The angle of M center mixers axis and vertical direction
The angle that m is formed between periphery mixer axis and center mixer axis
The main direction of rotation of R centers blend tool
The direction of rotation of r peripheries blend tool
P1Around the first mixer Angle Position of center mixer axis
P2Around the second mixer Angle Position of center mixer axis
P12Difference between first mixer Angle Position and the second mixer Angle Position
1 mixing device
2 mixing tanks
3 supporting frames
4 peripheral sidewalls
5 bottom walls
6 center blend tools
7 center mixer axis
The scraper of 8 center blend tools
9 first periphery blend tools
10 first periphery mixer axis
11 second periphery blend tools
12 second periphery mixer shafts lines
13 first transversal planes
The relatively lower part of 14 mixing tanks
The upper section of 15 mixing tanks
16 center hubs
The free end of 17 scrapers
18 blade tips
19 second transversal planes
20 outlet ports
21 computers
22 center circle taper top sections
23 center mixer axis
24 horizontal head covers
25 give sand hopper
26 construction openings
27 first direct drive motors
28 second direct drive motors
29 first spacer flanger parts
30 second spacer flanger parts
31 first motor connecting flanges
32 second motor connecting flanges
33 pitched covers
34 first spacer flanger parts
35 second spacer flanger parts
36 first motor connecting flanges
37 second motor connecting flanges
38 flexible clutch
The power consumption (prior art mixing arrangement) of 39 center blend tools
The average value (prior art mixing arrangement) of the power consumption of 40 center blend tools
The power consumption (mixing arrangement of the prior art) of 41 periphery blend tools
The average value (mixing arrangement of the prior art) of the power consumption of 42 periphery blend tools
The power consumption (the embodiment of the present invention) of 43 center blend tools
The consumption power (the embodiment of the present invention) of 44 first periphery blend tools
The consumption power (the embodiment of the present invention) of 45 second periphery blend tools
The drive motor of 46 center blend tools
47 jiaos of gear-boxes
Above 49 blade tips
Claims (39)
1. a kind of mixing device (1), has：Mixing tank (2), the mixing tank are fixedly placed in braced frame (3) and wrap
Include peripheral sidewalls (4) and bottom wall (5)；Center blend tool (6), the center mixer axis (7) around mixing tank (2) can revolve
Turn ground to arrange and with the multiple scrapers (8) for extending to peripheral sidewalls (4) along bottom wall (5)；It is mixed at least one periphery
Tool (9,11) is rotatably arranged around periphery mixer axis (10,12), which is characterized in that the mixing tank (2) with
Inclined location arrangements are in the braced frame (3) so that the center mixer axis (7) of the mixing tank (2) relative to
Vertical direction tilts an angle, the first transversal plane (13) extend through mixing tank (2) and including center mixer axis (7) and
The horizontal line that extends in the plane for limiting bottom wall (5), first transversal plane by mixing tank (2) be divided into position it is relatively low compared with
The higher upper section (15) of lower part (14) and position, and be disposed at least in the relatively lower part (14) of mixing tank (2)
One periphery blend tool (9,11).
2. mixing device according to claim 1, wherein, the center mixer axis (7) of the mixing tank (2) is inclined
Oblique angle (M) is between 5 to 30 degree, preferably between 7 to 25 degree, more preferably between 8 to 20 degree, and most preferably 9
To between 15 degree.
3. mixing device according to claim 1 or 2, wherein, the scraper (8) of the center blend tool (6) is around institute
The center mixer axis (7) for stating mixing tank (2) is uniformly distributed, adjacent scraper (8) so as to form certain mutual angle, and
And wherein described at least one periphery blend tool (9,11) is arranged so that between any pair of periphery blend tool (9,11)
Mutual angle all different from center blend tool (6) neighboring blades (8) certain mutual angle integral multiple.
4. mixing device according to claim 3, wherein, at least one periphery blend tool (9,11) is arranged to make
Mutual angle between any pair of periphery blend tool is all described certain with the neighboring blades of center blend tool (6)
The integral multiple of mutual angle differs by more than 3%, preferably greater than 5%, and most preferably greater than 7%.
5. mixing device according to any one of the preceding claims, wherein, the mixing device (1) includes the first periphery
Blend tool (9) and the second periphery blend tool (11), first periphery blend tool surround the first periphery mixer axis
(10) it is rotatably disposed within the first mixer Angle Position (P of the center mixer axis (7) around mixing tank (2)1) at, institute
The second periphery blend tool is stated to be rotatably disposed within around the center of mixing tank (2) around the second periphery mixer shafts line (12)
Second mixer Angle Position (P of mixer axis (7)2) at, and wherein first and second periphery blend tool (9,11) cloth
It puts in the relatively lower part (14) of mixing tank (2).
6. mixing device according to claim 5, wherein, the center blend tool (6) is including surrounding the mixing tank
(2) 90 ° of mutual angle is consequently formed in equally distributed four scrapers (8) of center mixer axis (7), adjacent scraper (8)
Degree, and wherein the first and second periphery blend tools (9,11) are arranged so that the first and second mixer Angle Position (P1, P2)
Difference is between 73 degree and 87 degree, preferably between 78 degree and 85 degree, and most preferably between 82 degree and 84 degree.
7. mixing device according to claim 5 or 6, wherein, the center blend tool (6) can be in main direction of rotation
(R) rotate the sand in the mixing tank (2) on, so as to limit upstream and downstream direction in mixing tank (2), wherein first week
Side blend tool (9) relative to the second periphery blend tool (11) positioned at upstream, and wherein the first mixer Angle Position (P1)
And the difference of the Angle Position of the first transversal plane (13) preferably between 20 to 45 degree, and most preferably exists between 10 to 55 degree
Between 30 to 35 degree.
8. mixing device according to claim 7, wherein, first periphery blend tool (9) is relative to the batch mixing
The bottom wall (5) of tank (2) is disposed above second periphery blend tool (11).
9. mixing device according to any one of the preceding claims, wherein, the center blend tool (6) can be along master
Direction of rotation (R) rotates, and wherein described at least one periphery blend tool (9,11) can be opposite with main direction of rotation (R)
Direction of rotation (r) on rotate.
10. mixing device according to any one of the preceding claims, wherein, the center blend tool (6) can be along
Main direction of rotation (R) rotation, wherein each scraper (8) of the center blend tool (6) is extended to from center hub (16) mixed
Free end (17) at the peripheral sidewalls (4) of batch can (2), wherein each scraper (8) from center hub (16) along and main rotation side
The direction of rotation opposite to (R) is bent, and the free end (17) of wherein each scraper (8) is provided with blade tip (18),
The blade tip have on main direction of rotation (R) towards the bottom wall (5) of mixing tank (2) it is inclined above (49).
11. mixing device according to any one of the preceding claims, wherein, in the corresponding radial direction of the mixing tank (2)
The corresponding periphery mixer axis (10,12) observed in viewgraph of cross-section is formed with the center mixer axis (7)
Respective angles are at least 2 degree, preferably at least 3 degree, and most preferably at least 4 degree so that periphery blend tool (9,11) it is relatively low
End is respectively at least slightly towards center mixer axis (7).
12. mixing device according to any one of the preceding claims, wherein, the peripheral sidewalls (4) are around its center
Mixer axis (7) rotational symmetry, such as be grouped as, and wherein described center mixer by cone and/or cylindrical part
Axis (7) is vertical with bottom wall (5).
13. mixing device according to any one of the preceding claims, wherein, the peripheral sidewalls (4) are cylindrical walls,
The bottom wall (5) is arranged at a right angle with the cylindrical wall, and the center mixer axis (7) of the peripheral sidewalls (4) is
The cylinder axis of the cylindrical wall.
14. mixing device according to any one of the preceding claims, wherein, second across the mixing tank (2) is horizontal
Cutting plane (19) extends at a right angle including the center mixer axis (7) and with first transversal plane (13), described
Second transversal plane limits the minimum point Angle Position (L in the relatively lower part (14) of mixing tank (2)P) and mixing tank (2) is higher
The partly peak Angle Position (H in (15)P), and wherein outlet port (20) is in minimum point Angle Position (LP) it is in the week
It is disposed adjacent in avris wall (4) with the bottom wall (5).
15. mixing device according to claim 14, wherein, by opening the outlet port (20), making the center
Blend tool (6) rotates and the rotating speed of the first and second periphery blend tools (9,11) is at least made to significantly reduce or stop it
Only, the mixing device (1) is controlled to empty the mixing tank (2).
16. mixing device according to any one of the preceding claims, wherein, the center blend tool (6) is provided with
The center circle taper top section (22) of the upper end of covering center mixing axis (23), the center blend tool (6) is mounted on institute
It states on center mixing axis.
17. mixing device according to any one of the preceding claims, wherein, the mixing tank (2) is provided with horizontal top
It covers (24), is provided in the horizontal head cover (24) and gives sand hopper (25).
18. mixing device according to claim 17, wherein, construction opening (26) adaptation in the horizontal head cover (24)
Sand hopper (25) is given in described so that at least four different angles that can be arranged in around vertical axis to sand hopper take
Xiang Zhong.
19. the mixing device according to claim 17 or 18, wherein, each periphery blend tool (9,11) is by being arranged on
During the corresponding direct drive motor (27,28) on horizontal head cover (24) is stated by being arranged on accordingly on horizontal head cover (24)
Between flange part (29,30) drive, the spacer flanger part have adapts to the corresponding of corresponding periphery mixer axis (10,12)
The corresponding motor connecting flange (31,32) of angle.
20. the mixing device according to claim 17 or 18, wherein, the mixing tank (2), which is provided with, is arranged in the water
Pitched cover (33) below flat deck roof (24), wherein each periphery blend tool (9,11) is by being arranged on pitched cover (33)
Corresponding direct drive motor (27,28) driven by the corresponding spacer flanger part (34,35) that is arranged on pitched cover,
The spacer flanger part has the corresponding motor connection for the respective angles for adapting to corresponding periphery mixer axis (10,12)
Flange (36,37).
21. a kind of method of the mixed sand in mixing tank (2), the mixing tank be securely maintained in braced frame (3) and
Including peripheral sidewalls (4) and bottom wall (5), thus center blend tool (6) can be around center mixer axis (7) rotation of mixing tank
Turn, and with the multiple scrapers (8) for extending to peripheral sidewalls (4) and inswept bottom wall (5), and thus at least one periphery mixing
Tool (9,11) is rotated around periphery mixer axis (10,12), which is characterized in that the mixing tank (2) is in the support frame
Frame is maintained at obliquity on (3) so that the center mixer axis (7) of the mixing tank (2) is tilted relative to vertical direction
One angle, the first transversal plane (13) extend through mixing tank (2) and including the center mixer axis (7) and are limiting
Mixing tank (2) is divided into relatively low relatively low in position by the horizontal line extended in the plane of the bottom wall (5), first transversal plane
The partly higher upper section (15) in (14) and position, and at least one periphery blend tool (9,11) is in mixing tank (2)
It is rotated compared in lower part (14).
22. the method for mixed sand according to claim 21, wherein, the center mixer axis of the mixing tank (2)
Line (7) relative to the inclined angle of vertical direction (M) 5 to 30 degree between, preferably 7 to 25 degree between, more preferably 8 to 20
Between degree, and most preferably between 9 to 15 degree.
23. the method for the mixed sand according to claim 21 or 22, wherein, in the rotation of the center blend tool (6)
It is period, corresponding by two of a pair of of periphery blend tool (9,11) when two scrapers (8) of the center blend tool are different
Periphery mixer axis (10,12).
24. the method for the mixed sand according to any one of claim 21 to 23, wherein, in the center blend tool
(6) during rotation, when the center blend tool (6) a scraper (8) by periphery blend tool (9,11) periphery
During mixer axis (10,12), any other scraper (8) of center blend tool (6) is arrived around center mixer axis (7)
The Angle Position of the periphery mixer axis (10,12) of another periphery blend tool (9,11) is not bordering on 3 degree, is not bordering on 4 preferably
Degree, is not bordering on 5 degree more preferably, and be not bordering on 6 degree most preferably.
25. the method for the mixed sand according to any one of claim 21 to 24, wherein, the first periphery blend tool (9)
It is centered around the first mixer Angle Position (P of the center mixer axis (7) around mixing tank (2)1) at the first periphery mixing
Device axis (10) rotates, and the second periphery blend tool (11) is centered around the center mixer axis around the mixing tank (2)
Second mixer Angle Position (P of line (7)2) at the rotation of the second periphery mixer shafts line (12), and wherein first and second
Periphery blend tool (9,11) rotates in the relatively lower part (14) of mixing tank (2).
26. the method for mixed sand according to claim 25, wherein, the center blend tool (6) is along main rotation side
Sand is rotated to (R) in the mixing tank (2), so as to limit updrift side and downstream direction in the mixing tank (2), by
This first periphery blend tool (9) encounters sand, and thus described in the upstream of second periphery blend tool (11)
First Angle Position (P1) and first transversal plane (13) Angle Position difference 10 to 55 degree between, preferably 20 to 45 degree
Between, and most preferably between 30 to 35 degree.
27. the method for the mixed sand according to claim 25 or 26, wherein, first periphery blend tool (9) is opposite
Bottom wall (5) in the mixing tank (2) is disposed above second periphery blend tool (11).
28. the method for the mixed sand according to any one of claim 21 to 27, wherein, the center blend tool (6)
It is rotated along main direction of rotation (R), and wherein described at least one periphery blend tool (9,11) edge and main direction of rotation (R)
Opposite direction of rotation (r) rotation.
29. the method for the mixed sand according to any one of claim 21 to 28, wherein, the center blend tool (6)
It is rotated along main direction of rotation (R), thus each scraper (8) of the center blend tool (6) is extended to from center hub (16)
Free end (17) at the peripheral sidewalls (4) of mixing tank (2), thus each scraper (8) from center hub (16) along and main rotation
Turn the opposite direction of rotation bending in direction (R), and thus the free end (17) of each scraper (8) is provided with blade tip
(18), which promotes sand in upward direction relative to the bottom wall (5) of mixing tank (2).
30. the method for the mixed sand according to any one of claim 21 to 29, wherein, the phase in the mixing tank (2)
Answer the corresponding periphery mixer axis (10,12) observed in radial cross sectional view and the center mixer axis (7)
The respective angles of formation are at least 2 degree, preferably at least 3 degree, and most preferably at least 4 degree so that periphery blend tool (9,11)
Lower ends respectively at least slightly towards center mixer axis (7).
31. the method for the mixed sand according to any one of claim 21 to 30, wherein, the peripheral sidewalls (4) surround
Its center mixer shafts line (7) rotational symmetry, such as be grouped as, and wherein described center by cone and/or cylindrical part
Mixer axis (7) is vertical with bottom wall (5).
32. the method for the mixed sand according to any one of claim 21 to 31, wherein, the peripheral sidewalls (4) are round
Cylindrical wall, the bottom wall (5) is arranged at a right angle with the cylindrical wall, and the center mixer axis of the peripheral sidewalls (4)
Line (7) is the cylinder axis of the cylindrical wall.
33. the method for the mixed sand according to any one of claim 21 to 32, wherein across the mixing tank (2)
Two transversal planes (19) extend at a right angle including the center mixer axis (7) and with first transversal plane (13),
Second transversal plane limits the minimum point Angle Position (L in the relatively lower part (14) of mixing tank (2)P) and mixing tank (2)
Peak Angle Position (H in upper section (15)P), and wherein after sand mixing, institute is emptied by outlet port (20)
The sand of mixing tank (2) is stated, the outlet port is in minimum point Angle Position (LP) be in the peripheral sidewalls (4) and the bottom wall
(5) it is disposed adjacent to.
34. the method for mixed sand according to claim 33, wherein, after sand mixing, by opening the port of export
Mouth (20) rotates the center blend tool (6) and at least makes the rotating speed of the first and second periphery blend tools (9,11)
It significantly reduces or makes its stopping, and empty the mixing tank (2).
35. the method for the mixed sand according to any one of claim 21 to 34, wherein, the center blend tool (6)
It is provided with the center circle taper top section (22) of the upper end of covering center mixing axis (23), center blend tool (6) peace
On the center mixing axis, and sand is moved downward in the central portion of mixing tank (2) and in center circle taper top
Slide downward on portion (22) part, and the center blend tool being thus led out at the bottom wall (5) of mixing tank (2)
(6) scraper (8).
36. the method for the mixed sand according to any one of claim 21 to 35, wherein, the mixing tank (2) is provided with
Horizontal head cover (24), is provided in the horizontal head cover and gives sand hopper (25).
37. the method for the mixed sand according to any one of claim 21 to 36, wherein, in the horizontal head cover (24)
Construction opening (26) adapts to described to sand hopper (25) so that described to be arranged in sand hopper around vertical axis at least
In four different angle orientations.
38. the method for the mixed sand according to any one of claim 21 to 37, wherein each periphery blend tool (9,
11) by being arranged on the corresponding direct drive motor (27,28) on the horizontal head cover (24) by being arranged on level accordingly
Spacer flanger part (29,30) driving on head cover (24), the spacer flanger part, which has, adapts to corresponding periphery mixer shafts
The corresponding motor connecting flange (31,32) of the respective angles of line (10,12).
39. the method for the mixed sand according to any one of claim 21 to 37, wherein, the mixing tank (2) is provided with
The pitched cover (33) being arranged in below the horizontal head cover (24), wherein each periphery blend tool (9,11) is inclined by being arranged on
Corresponding direct drive motor (27,28) on oblique top lid (33) is by the corresponding intermediate method being arranged on pitched cover (33)
Blue part (29,30) driving, the spacer flanger part have the respective angles for adapting to corresponding periphery mixer axis (10,12)
Corresponding motor connecting flange (31,32).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2015/055719 WO2017017497A1 (en) | 2015-07-29 | 2015-07-29 | Sand mixing device and method of mixing sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108136349A true CN108136349A (en) | 2018-06-08 |
Family
ID=54151329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580082021.5A Pending CN108136349A (en) | 2015-07-29 | 2015-07-29 | Mixing device and sand mixed method |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3328529B1 (en) |
| CN (1) | CN108136349A (en) |
| PL (1) | PL3328529T3 (en) |
| WO (1) | WO2017017497A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005710B (en) * | 2019-12-19 | 2022-03-18 | 中石化四机石油机械有限公司 | Sand conveying and mixing system and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964733A (en) * | 1973-04-13 | 1976-06-22 | Badische Maschinenfabrik Gmbh | Mixer for molding sand |
| NL7807794A (en) * | 1978-07-20 | 1978-11-30 | Nautamix Patent Ag | Mixing device for liquid and solid phases - employs gas injection to fluidise mix and reduce agitator load |
| DE3341674A1 (en) * | 1983-11-18 | 1985-05-30 | Alwin Berents GmbH & Co KG, 2805 Stuhr | Apparatus for mixing and homogenising preferably paste-like mixes |
| JP2002306945A (en) * | 2001-04-10 | 2002-10-22 | Kawasaki Heavy Ind Ltd | Continuous granulator and continuous granulation process |
| JP2011115731A (en) * | 2009-12-04 | 2011-06-16 | Central Motor Co Ltd | Stirring device unit in container |
| CN204365166U (en) * | 2014-12-29 | 2015-06-03 | 四川省祥业机械铸造有限公司 | A kind of coating agitator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1271334A (en) | 1960-09-21 | 1961-09-08 | Buss Ag | Method and device for mixing, kneading and kneading powdered or granular materials |
| US3770251A (en) * | 1971-11-08 | 1973-11-06 | F Herfeld | Apparatus for mixing plastics materials and the like during processing thereof |
| DE3312869A1 (en) | 1983-04-09 | 1984-10-11 | Eirich, Hubert | DEVICE FOR SPREADING FLOWABLE MATERIALS |
| DD266465A3 (en) * | 1987-08-12 | 1989-04-05 | Giesserei Anlagenbau Und Gusse | DEVICE FOR MIXING |
| DE3901774C2 (en) | 1989-01-21 | 1995-03-30 | Mann & Hummel Filter | Mixer with a mixing container, especially for bulk goods |
| WO2002074467A1 (en) * | 2001-03-20 | 2002-09-26 | Nv Engineering Gmbh | Method and device for the cooling preparation of warm bulk materials |
-
2015
- 2015-07-29 PL PL15767268T patent/PL3328529T3/en unknown
- 2015-07-29 EP EP15767268.4A patent/EP3328529B1/en active Active
- 2015-07-29 WO PCT/IB2015/055719 patent/WO2017017497A1/en unknown
- 2015-07-29 CN CN201580082021.5A patent/CN108136349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964733A (en) * | 1973-04-13 | 1976-06-22 | Badische Maschinenfabrik Gmbh | Mixer for molding sand |
| NL7807794A (en) * | 1978-07-20 | 1978-11-30 | Nautamix Patent Ag | Mixing device for liquid and solid phases - employs gas injection to fluidise mix and reduce agitator load |
| DE3341674A1 (en) * | 1983-11-18 | 1985-05-30 | Alwin Berents GmbH & Co KG, 2805 Stuhr | Apparatus for mixing and homogenising preferably paste-like mixes |
| JP2002306945A (en) * | 2001-04-10 | 2002-10-22 | Kawasaki Heavy Ind Ltd | Continuous granulator and continuous granulation process |
| JP2011115731A (en) * | 2009-12-04 | 2011-06-16 | Central Motor Co Ltd | Stirring device unit in container |
| CN204365166U (en) * | 2014-12-29 | 2015-06-03 | 四川省祥业机械铸造有限公司 | A kind of coating agitator |
Also Published As
| Publication number | Publication date |
|---|---|
| PL3328529T3 (en) | 2020-01-31 |
| EP3328529B1 (en) | 2019-07-10 |
| WO2017017497A1 (en) | 2017-02-02 |
| EP3328529A1 (en) | 2018-06-06 |
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