CA1179325A - Mobile ingredient containers feeding a pre-mixing chamber - Google Patents
Mobile ingredient containers feeding a pre-mixing chamberInfo
- Publication number
- CA1179325A CA1179325A CA000384455A CA384455A CA1179325A CA 1179325 A CA1179325 A CA 1179325A CA 000384455 A CA000384455 A CA 000384455A CA 384455 A CA384455 A CA 384455A CA 1179325 A CA1179325 A CA 1179325A
- Authority
- CA
- Canada
- Prior art keywords
- dry material
- receptacles
- batches
- blender
- unloading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/805—Mixing plants; Combinations of mixers for granular material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
- B01F33/841—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with component receptacles fixed in a circular configuration on a horizontal table, e.g. the table being able to be indexed about a vertical axis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Accessories For Mixers (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Drying Of Solid Materials (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
9 48,865 ABSTRACT OF THE DISCLOSURE
A blender for lots of dry material characterized by mixing means for commingling a plurality of runs of dry material and including a plurality of material-receiving receptacles which are mounted for movement between loading and unloading stations and which are adapted to receive quantities of dry material from a number of runs thereof, and a blender for receiving dry material from the recept-acles and mixing the same to a homogeneous mixture.
A blender for lots of dry material characterized by mixing means for commingling a plurality of runs of dry material and including a plurality of material-receiving receptacles which are mounted for movement between loading and unloading stations and which are adapted to receive quantities of dry material from a number of runs thereof, and a blender for receiving dry material from the recept-acles and mixing the same to a homogeneous mixture.
Description
~7932~
1 48,~65 MOBILE INGREDIENT CONTAINERS FEEDING
A PRE-MIXING CHAMBER
B _ GROUND OF THE INVENTION
Field of the Invention:
This invention relates to a blender for dry material and, more particularly, it pertains to blending apparatus for mixing batches of dry material into a homo-geneous mixture.
Description of the Prior Art:
The mixing or blending of two or more dry mater-ials is an involved operation to perform and -to control.
Though mixing of such materials can be performed continu-ously, it is usually done in batches or lots. Inasmuch as the art of mixing or blending is empirical and because of the infinite variety of substances to be mixed, the number of mixing devices which have been developed is consider-able, Indeed, the chemical and physical characteristicsof the materials to be mixed are a primary consideration and influence the equipment to be used, Accordingly, each inclustry has developed mixing equipment adapted to its own ~se, SUMMARY OF THE INVENTION
A blender for dry materlals characterized by mixing means for commingling a plurality of batches of dry material and comprising a rotatable conveyor for carrying zs a plurality of receptacles between loading and un1Oading stations for receiving and discharging a major quantity of dry material; the unloading station comprising m~ans for unloading at le~st two equally spaced receptacles, the blender being rotatable to mix the ma~erial received from the unloading s~ation, and an accumulator for receiving the blended material from the blender.
The advantage oi the device of this invention is that it provides a blend of several successive batches of dry material into a nearly homogeneous mixture.
BRTEF DESCRIPTIO~ OF THE DRAWINGS
Figure 1 is an elevational view of the apparatus of this invention;
Fig. 2 is a plan view of the apparatus shown in Fig. 1;
Fig. 3 is a vertical sectional view taken on th~
line III-III of Fig. l;
Fig. 4 is a vertical sectional view taken on the line IV-IV of Fig. l;
Fig. 5 is an enlarged fragmentary plan view of the rotatable conveyor of this invention;
Fig. 6 is a vertical sectional view taken on the line VI-VI of Fig. 5; and Fig. 7 is an enlarged vertical sectional view taken on the line VII-VII of Fig. 5.
DESCRIPTION OF THE PREFERRED E~BODIMENT
Apparatus for blending dry materials int:o a homogeneous mixture is generally indicated at 9 (Fig. 1).
It comprises rotatable receptacle generally indicated at 3 11, a mixer or blender 13, an accumulator 15~ and a con-tainer 17 Eor the blended product. Although the apparatus 9 may be employed for mixing a variety of types of dry material, it is particularly adapted for mi~ing chunks of metal, such as zirconium (co~monly called æirconium sponge), having an irregular configuration of varying dimensions ranging from less than ~20 mesh up to about 3/4 inch~ The rotatable receptacle 11 is comprised of a pluralit~ f ~ a~-48~ vertical tubular receptacle~ 19 s disposed in a circle and mounted on a circular base 21.
The upper ends of the receptacles 19 are open and the lower ends are closed by releasable gates 23.
Generally, the material flow commences with the dumping of a barrel 25 of a batch of material which is raised by a hoist 27 from a floor 29 to the upper dumping position, where the material flows through a spout ~1 into a feed hopper 33 from where it drops onto a rotatable plate 35 at the lower end of a shaft 37 driven by a motor 39.
Major amounts of the material from ~he barrel 25 are poured into the receptacles 19 through a conduit 41 so that with successive batches of material from a plurality of barrels 25, the receptacles are filled with a plurality f stratums of batches o~ dry material. 1q The material is poured from the receptacles~ at unloading stations which are equally spaced from each other and comprised of a pair of dumping spouts or con-duits 43, 45. Although two spouts 43, 45 are shown, it is understood that more than two spouts may be provided where desirable.
The lower ends of the spouts 43, 45 converge at a collector 47 from where the material drops into the mixer 13 which is a double-cone type mixer for rapid blending of the solid dry material. From ~he mixer 13, the material is poured into a barrel 51 ~ is moved laterally to a position 51a at thé lower end of the hoist 27 by which it is then elevated to the position of the barrel 25 for re-dumping into the hopper 33. As the material drops from the hopper, it passes through the conduit 41 which is relocated to the position 41a where it drops onto a shaker screen 53 within a container 55 for the removal of smaller particles of the material having a size of minus 20 mesh which is discarded, because of its high content of undesirable elements, such as nickel, iron, aluminum, etc.
From the shaker screen, the material moves onto a cleated conveyor belt 57 by which it is elevated to a collector 59 where a magnetic device 61 is located for the removal of any possible iron contained in the material.
From the collector 59, the material drops into a pair of spaced spouts 63, 65 for dropping into the accumulator 15.
The accumulator 15 is a hopper type container which is divided by a wall 67 into two half portions to which the respective spouts 63, 65 are directed. At the lower end of the accumulator 15, the material flows through an outlet 69, con~rolled by a gate 71 from where controlled lo amounts of the material drop upon a table 73 for inspee-tion and hand picking of foreign or discolored material, such as compounds of nitrogen and oxygen.
The material which passes inspection drops through spouts 75 to a conduit 77 from where it drops into the container 17. A sample collector 79 may be used at the lower end of the conduit 77 for collecting samples.
Inasmuch as zirconium sponge is a pyrophoric material capable of igniting spontaneously when exposed to a:ir under confined conditions, the accumulator 15 which is a sealed tank is filled with argon or helium for reducing fire hazards. Other noble gases, such as neon and kryp-ton, have been found to be less effective as fire inhibi-tors, if at all, than helium and argon. ~
~/~h~ I'he product of dry material in the hopper~ is substantially completely blended from a plurality of ~atches of dry material delivered at the feed hopper 33.
Moreover, where it is deemed necessary, the blended prod-uct from the container 17 may be recirculated ~hrough part or all of the foregoing apparatus as set forth above.
3~ The rotatable receptacle 11 (Figs. 5, 6~ 7) eomprises a circular plate 81 on which the tubular recept-acles 19 are mounted by ~eans of mounting brackets 83 and mounting flanges 85 extending from the outer periphery of the circular plate 81. An invertecl rail 87 is mounted on the undersurface of the plate 81 and is supported on a p~Lurality of peripherally spaced idler wheels 89 (Fig. 7) which in turn are mounted on wheel shafts 91 in similar bearings 93 on support channels 95. By inverting the rail ~ ~ 7 ~
87 for support on the spaced idler wheels 89, any powdered - dry material falling from the spout 41 as it is poured into the tubular receptacles 19, lands upon a smaller surface portion of the idler wheel 89, rather than upon a larger surface of the rail 87, whereby a minimum amount of powdered material is entrapped between the wheels and the rail.
Drive means for rotating the receptacle 11 is generally indicated at 97 and it comprises a prime mover 99, such as an electric motor~ together with a drive chain 101 for turning a gear 103 which engages a roller chain 105 which is ixedly mounted on a mounting plate 107 on the inner periphery of the circular plate 81. As the receptacle 11 rotates, an indexing means 109 stops each receptacle 19 in alignment with the spout 41 (Fig. 1~, whereby dry material is poured into each receptacle 19.
With continued pouring into successive receptacles 19, a~ditional batches of dry material from similar barrels 25 are poured into the receptacles until the receptacles are filled with laye~s or strata of dry material or ~irconium sponge from successive barrels. Unloading of the recepta-cles 19 is accomplished by positioning one or more, such as two, receptacles 19 over the upper open ends of the spouts 43, 45 ~Figs. 6, 7).
As set forth above, each conduit includes a gate 23 (Fig. 7) which is pivotally mounted at 111 and is provided with an inclined arm 113. A le~er 115, pivotally mounted at 117, cooperates with the arm 113 for retaining the gate 23 in place when the receptacle is loa~ed with dry material 119. The weight of the material 119 urges .~ ! the arm ~ in a clockwise direction about the pivot 1.11 where it is retained in place against a surface 121 of the lever 115. Release means, such as a solenoid 123, havin~
a plunger 125 is actuated against a lower en~ 127 Or the lever 115 to release the arm 113 from the surface ])1, whereupon the gate 23 drops to empty the dry material 119 into an opening 129 in the base 21 which opening communi-cates with the upper end of the spout 43. When all of the ~L~7~3~ ~ ~
material 119 has drc~pped from the retainer 1~, the weight of the arm 113 causes the gate 23 to return counterclock-wise to the closed position, whereupon the retracted plunger 125 enables the lever 115 to return to the blocked position as shown (Fig. 7).
For more efficient blending of dry material 119, both spouts 43, 45 deliver material to the collector 47 ~`ig. I.) where under control of a gate 131, the material is dropped into t.he mixer 13. The mi~er 13 is a tumbling type of mixer and, more particularly, of the doubl.e-cone type having a central cylindrical portion and a cone-shaped end portion at each end thereof. The mixer 13 is mounted on trunions on a horizontal axis, end over end, so that during rotation, the lower cone is tilted to a posi-tion where an angle of repose of the contents is exceededand causes the contents to drop to the opposite cone end of the mixer, etc. After mixing, the contents are emptied into the barrel 51.
The barrel 51 is then moved to the barrel posi-tion 51a where it is lifted on the hoist 27 to t.he upperen~l and poured into the hopper 33 from where it may 1,~
either recycled through the rotatable recept.acl.e 11 or through the shaker screen 53. ~hereafter the material flows, as set forth above, to the accumulator 15 and then to the container 17.
Accordingly, the apparatus of this invention provides for the blènding of batches, lots, or runs of dry material to provide as nearly a homogeneous mixture as possible.
1 48,~65 MOBILE INGREDIENT CONTAINERS FEEDING
A PRE-MIXING CHAMBER
B _ GROUND OF THE INVENTION
Field of the Invention:
This invention relates to a blender for dry material and, more particularly, it pertains to blending apparatus for mixing batches of dry material into a homo-geneous mixture.
Description of the Prior Art:
The mixing or blending of two or more dry mater-ials is an involved operation to perform and -to control.
Though mixing of such materials can be performed continu-ously, it is usually done in batches or lots. Inasmuch as the art of mixing or blending is empirical and because of the infinite variety of substances to be mixed, the number of mixing devices which have been developed is consider-able, Indeed, the chemical and physical characteristicsof the materials to be mixed are a primary consideration and influence the equipment to be used, Accordingly, each inclustry has developed mixing equipment adapted to its own ~se, SUMMARY OF THE INVENTION
A blender for dry materlals characterized by mixing means for commingling a plurality of batches of dry material and comprising a rotatable conveyor for carrying zs a plurality of receptacles between loading and un1Oading stations for receiving and discharging a major quantity of dry material; the unloading station comprising m~ans for unloading at le~st two equally spaced receptacles, the blender being rotatable to mix the ma~erial received from the unloading s~ation, and an accumulator for receiving the blended material from the blender.
The advantage oi the device of this invention is that it provides a blend of several successive batches of dry material into a nearly homogeneous mixture.
BRTEF DESCRIPTIO~ OF THE DRAWINGS
Figure 1 is an elevational view of the apparatus of this invention;
Fig. 2 is a plan view of the apparatus shown in Fig. 1;
Fig. 3 is a vertical sectional view taken on th~
line III-III of Fig. l;
Fig. 4 is a vertical sectional view taken on the line IV-IV of Fig. l;
Fig. 5 is an enlarged fragmentary plan view of the rotatable conveyor of this invention;
Fig. 6 is a vertical sectional view taken on the line VI-VI of Fig. 5; and Fig. 7 is an enlarged vertical sectional view taken on the line VII-VII of Fig. 5.
DESCRIPTION OF THE PREFERRED E~BODIMENT
Apparatus for blending dry materials int:o a homogeneous mixture is generally indicated at 9 (Fig. 1).
It comprises rotatable receptacle generally indicated at 3 11, a mixer or blender 13, an accumulator 15~ and a con-tainer 17 Eor the blended product. Although the apparatus 9 may be employed for mixing a variety of types of dry material, it is particularly adapted for mi~ing chunks of metal, such as zirconium (co~monly called æirconium sponge), having an irregular configuration of varying dimensions ranging from less than ~20 mesh up to about 3/4 inch~ The rotatable receptacle 11 is comprised of a pluralit~ f ~ a~-48~ vertical tubular receptacle~ 19 s disposed in a circle and mounted on a circular base 21.
The upper ends of the receptacles 19 are open and the lower ends are closed by releasable gates 23.
Generally, the material flow commences with the dumping of a barrel 25 of a batch of material which is raised by a hoist 27 from a floor 29 to the upper dumping position, where the material flows through a spout ~1 into a feed hopper 33 from where it drops onto a rotatable plate 35 at the lower end of a shaft 37 driven by a motor 39.
Major amounts of the material from ~he barrel 25 are poured into the receptacles 19 through a conduit 41 so that with successive batches of material from a plurality of barrels 25, the receptacles are filled with a plurality f stratums of batches o~ dry material. 1q The material is poured from the receptacles~ at unloading stations which are equally spaced from each other and comprised of a pair of dumping spouts or con-duits 43, 45. Although two spouts 43, 45 are shown, it is understood that more than two spouts may be provided where desirable.
The lower ends of the spouts 43, 45 converge at a collector 47 from where the material drops into the mixer 13 which is a double-cone type mixer for rapid blending of the solid dry material. From ~he mixer 13, the material is poured into a barrel 51 ~ is moved laterally to a position 51a at thé lower end of the hoist 27 by which it is then elevated to the position of the barrel 25 for re-dumping into the hopper 33. As the material drops from the hopper, it passes through the conduit 41 which is relocated to the position 41a where it drops onto a shaker screen 53 within a container 55 for the removal of smaller particles of the material having a size of minus 20 mesh which is discarded, because of its high content of undesirable elements, such as nickel, iron, aluminum, etc.
From the shaker screen, the material moves onto a cleated conveyor belt 57 by which it is elevated to a collector 59 where a magnetic device 61 is located for the removal of any possible iron contained in the material.
From the collector 59, the material drops into a pair of spaced spouts 63, 65 for dropping into the accumulator 15.
The accumulator 15 is a hopper type container which is divided by a wall 67 into two half portions to which the respective spouts 63, 65 are directed. At the lower end of the accumulator 15, the material flows through an outlet 69, con~rolled by a gate 71 from where controlled lo amounts of the material drop upon a table 73 for inspee-tion and hand picking of foreign or discolored material, such as compounds of nitrogen and oxygen.
The material which passes inspection drops through spouts 75 to a conduit 77 from where it drops into the container 17. A sample collector 79 may be used at the lower end of the conduit 77 for collecting samples.
Inasmuch as zirconium sponge is a pyrophoric material capable of igniting spontaneously when exposed to a:ir under confined conditions, the accumulator 15 which is a sealed tank is filled with argon or helium for reducing fire hazards. Other noble gases, such as neon and kryp-ton, have been found to be less effective as fire inhibi-tors, if at all, than helium and argon. ~
~/~h~ I'he product of dry material in the hopper~ is substantially completely blended from a plurality of ~atches of dry material delivered at the feed hopper 33.
Moreover, where it is deemed necessary, the blended prod-uct from the container 17 may be recirculated ~hrough part or all of the foregoing apparatus as set forth above.
3~ The rotatable receptacle 11 (Figs. 5, 6~ 7) eomprises a circular plate 81 on which the tubular recept-acles 19 are mounted by ~eans of mounting brackets 83 and mounting flanges 85 extending from the outer periphery of the circular plate 81. An invertecl rail 87 is mounted on the undersurface of the plate 81 and is supported on a p~Lurality of peripherally spaced idler wheels 89 (Fig. 7) which in turn are mounted on wheel shafts 91 in similar bearings 93 on support channels 95. By inverting the rail ~ ~ 7 ~
87 for support on the spaced idler wheels 89, any powdered - dry material falling from the spout 41 as it is poured into the tubular receptacles 19, lands upon a smaller surface portion of the idler wheel 89, rather than upon a larger surface of the rail 87, whereby a minimum amount of powdered material is entrapped between the wheels and the rail.
Drive means for rotating the receptacle 11 is generally indicated at 97 and it comprises a prime mover 99, such as an electric motor~ together with a drive chain 101 for turning a gear 103 which engages a roller chain 105 which is ixedly mounted on a mounting plate 107 on the inner periphery of the circular plate 81. As the receptacle 11 rotates, an indexing means 109 stops each receptacle 19 in alignment with the spout 41 (Fig. 1~, whereby dry material is poured into each receptacle 19.
With continued pouring into successive receptacles 19, a~ditional batches of dry material from similar barrels 25 are poured into the receptacles until the receptacles are filled with laye~s or strata of dry material or ~irconium sponge from successive barrels. Unloading of the recepta-cles 19 is accomplished by positioning one or more, such as two, receptacles 19 over the upper open ends of the spouts 43, 45 ~Figs. 6, 7).
As set forth above, each conduit includes a gate 23 (Fig. 7) which is pivotally mounted at 111 and is provided with an inclined arm 113. A le~er 115, pivotally mounted at 117, cooperates with the arm 113 for retaining the gate 23 in place when the receptacle is loa~ed with dry material 119. The weight of the material 119 urges .~ ! the arm ~ in a clockwise direction about the pivot 1.11 where it is retained in place against a surface 121 of the lever 115. Release means, such as a solenoid 123, havin~
a plunger 125 is actuated against a lower en~ 127 Or the lever 115 to release the arm 113 from the surface ])1, whereupon the gate 23 drops to empty the dry material 119 into an opening 129 in the base 21 which opening communi-cates with the upper end of the spout 43. When all of the ~L~7~3~ ~ ~
material 119 has drc~pped from the retainer 1~, the weight of the arm 113 causes the gate 23 to return counterclock-wise to the closed position, whereupon the retracted plunger 125 enables the lever 115 to return to the blocked position as shown (Fig. 7).
For more efficient blending of dry material 119, both spouts 43, 45 deliver material to the collector 47 ~`ig. I.) where under control of a gate 131, the material is dropped into t.he mixer 13. The mi~er 13 is a tumbling type of mixer and, more particularly, of the doubl.e-cone type having a central cylindrical portion and a cone-shaped end portion at each end thereof. The mixer 13 is mounted on trunions on a horizontal axis, end over end, so that during rotation, the lower cone is tilted to a posi-tion where an angle of repose of the contents is exceededand causes the contents to drop to the opposite cone end of the mixer, etc. After mixing, the contents are emptied into the barrel 51.
The barrel 51 is then moved to the barrel posi-tion 51a where it is lifted on the hoist 27 to t.he upperen~l and poured into the hopper 33 from where it may 1,~
either recycled through the rotatable recept.acl.e 11 or through the shaker screen 53. ~hereafter the material flows, as set forth above, to the accumulator 15 and then to the container 17.
Accordingly, the apparatus of this invention provides for the blènding of batches, lots, or runs of dry material to provide as nearly a homogeneous mixture as possible.
Claims (9)
1. Apparatus for blending a plurality of batches of a dry material, comprising:
(a) mixing means for commingling a plurality of batches of dry material and including a plurality of material-receiving receptacles and a blender;
(b) the receptacles being mounted for rotation between loading and unloading stations of a rotatable conveyor and each receptacle being adapted to receive measured quantities of a dry material from a number of batches of dry material;
(c) the blender being rotatably mounted for mixing dry material received from the receptacles;
(d) the receptacles being mounted for sequential positioning at the loading station;
(e) hopper means being provided at the loading station for pouring a measured quantity of dry material into each receptacle from a number of batches of dry material; and (f) dumping means being provided on each recept-acle for unloading at least a portion of the dry material and comprising a releasable gate pivotally mounted on each receptacle.
(a) mixing means for commingling a plurality of batches of dry material and including a plurality of material-receiving receptacles and a blender;
(b) the receptacles being mounted for rotation between loading and unloading stations of a rotatable conveyor and each receptacle being adapted to receive measured quantities of a dry material from a number of batches of dry material;
(c) the blender being rotatably mounted for mixing dry material received from the receptacles;
(d) the receptacles being mounted for sequential positioning at the loading station;
(e) hopper means being provided at the loading station for pouring a measured quantity of dry material into each receptacle from a number of batches of dry material; and (f) dumping means being provided on each recept-acle for unloading at least a portion of the dry material and comprising a releasable gate pivotally mounted on each receptacle.
2, The apparatus of claim 1 in which the hopper means are located at the loading station for receiving batches of material to be blended and for charging into the receptacles.
3. The apparatus of claim 2 in which the recept-acles are filled with stratums of a plurality of batches of dry material.
4. The apparatus of claim 3 in which the un-loading station comprises means for unloading at least two receptacles.
5. The apparatus of claim 4 in which the unloading means are equally spaced around the conveyor.
6. The apparatus of claim 5 in which conduit means are disposed between the unloading station and the blender.
7. The apparatus of claim 6 in which there are two diagonally spaced conduit means extending from a pair of receptacles to the blender.
8. The apparatus of claim 7 in which the mixing means also comprise accumulator means into which mixed dry material is transferred from the blender for separating the mixed dry material into at least two por-tions.
9. The apparatus of claim 8 in which the accumulator means comprises an outlet for each portion, and a container for receiving dry material from the accum-ulator means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18468380A | 1980-09-08 | 1980-09-08 | |
| US184,683 | 1980-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1179325A true CA1179325A (en) | 1984-12-11 |
Family
ID=22677930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000384455A Expired CA1179325A (en) | 1980-09-08 | 1981-08-24 | Mobile ingredient containers feeding a pre-mixing chamber |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0046667A3 (en) |
| JP (1) | JPS5778934A (en) |
| CA (1) | CA1179325A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1234720B (en) * | 1989-08-29 | 1992-05-26 | Color Service Srl | PREPARATION AND DISTRIBUTION PLANT FOR COLORING SOLUTIONS IN DYES |
| CN112973528B (en) * | 2021-02-04 | 2023-06-23 | 石家庄职业技术学院 | Uniform mixing device for medicinal powder and mixing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2441774A (en) * | 1944-09-22 | 1948-05-18 | Thomas E Shaw | Apparatus for mixing powdered material |
| US3137327A (en) * | 1961-01-09 | 1964-06-16 | Gen Machine Company Of New Jer | Loading and unloading system for blenders and the like |
-
1981
- 1981-08-21 EP EP81303821A patent/EP0046667A3/en not_active Withdrawn
- 1981-08-24 CA CA000384455A patent/CA1179325A/en not_active Expired
- 1981-09-07 JP JP56139857A patent/JPS5778934A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0046667A3 (en) | 1983-03-23 |
| JPS5778934A (en) | 1982-05-17 |
| EP0046667A2 (en) | 1982-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |