EP0368917B1 - Mixing method - Google Patents
Mixing method Download PDFInfo
- Publication number
- EP0368917B1 EP0368917B1 EP88906846A EP88906846A EP0368917B1 EP 0368917 B1 EP0368917 B1 EP 0368917B1 EP 88906846 A EP88906846 A EP 88906846A EP 88906846 A EP88906846 A EP 88906846A EP 0368917 B1 EP0368917 B1 EP 0368917B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- batch
- materials
- mixing
- lifting
- 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 - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
- B28C5/023—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing using a flexible mat or bag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/55—Mixers with shaking, oscillating, or vibrating mechanisms the materials to be mixed being contained in a flexible bag submitted to periodical deformation
Definitions
- the present invention relates to a method for mixing granular and/or pulverulent materials with each other and/or a liquid.
- a first object of the invention therefore is to provide a method of the type stated by way of introduction, which ensures efficient mixing with small efforts and at a low cost.
- Another object of the invention is to entirely eliminate the emission of dust to the environment.
- each end of the tube preferably is provided with a handle.
- These handles may consist of holes through the tube at the ends thereof.
- this is suitably open or openable at least at one end thereof. If the other end of the tube is closed, the tube may also serve as a package for the granular and/or pulverulent materials.
- the circumference of the tube is made larger than the circumference of the package. In this manner, the open end of the tube can be passed over the package which can thus be emptied of its entire contents or part thereof in a dust-free manner.
- the tube is made of a transparent material, such that the progress of the mixing operation can be directly observed.
- the tube also offers the advantage of allowing convenient transport of the mixed material to the place of use. Cleaning of the tube normally consists only in washing the inside of the tube. If some of the mixed material is left in the tube so as to dry and get stuck to the inner side thereof, it can easily be removed by lightly shaking the tube thanks to the pliability thereof.
- the invention is not restricted to the mixing of concrete but is also well suited for mixing any granular and/or pulverulent materials with or without the addition of liquid.
- Fig. 1 is a top plan view of an embodiment of the device used according to the invention.
- Fig. 2 shows an alternative embodiment of the device according to Fig. 1.
- Fig. 3 is a side view of the device according to Fig. 1 containing a batch ready for mixing.
- Fig. 4 is an example showing how the device can be filled with materials to be mixed.
- Fig. 5 shows the device in Fig. 3 with a cross for further reducing the mixing efforts.
- the device used according to the invention and shown in Figs. 1-3 consists of a tube 1 of a pliable web having ends 2 and 3 reinforced by doubling over the web. Holes 4, 5 are formed in the doubled portions at the ends 2 and 3 and have such a shape that the user's hands can be passed therethrough to obtain a steady grip at each end of the tube.
- the doubled end portions of the tube 1 and the holes 4 and 5 thus provide a handle at each end of the tube 1.
- the ends 2 and 3 can be further reinforced e.g. by means of a strip 6 shown in Fig. 2, which has a hole corresponding to the hole 4.
- a batch 7 of granular and/or pulverulent materials and a liquid e.g. a batch of sand, cement and water
- a liquid e.g. a batch of sand, cement and water
- This central part of the tube 1 rests on a stationary supporting surface 8, and the ends 2 and 3 of the tube are held in an upwardly stretched state by the hands of a user (not shown).
- the lifting movements are performed to such an extent that the materials in the batch 7 are thoroughly blended.
- Such blending can be achieved in that the outer portions of the batch 7 as shown in Fig. 3 are alternately lifted and shifted sideways in over the central portion of the batch 7.
- the central portion of the batch 7 will successively be superposed by new layers consisting of the material raised from the outer portions of the batch 7.
- the tube suitably is open at least at one end thereof. Further, the tube 1 has such a circumference that it can be passed over a package 9 with the material to be mixed, as shown in Fig. 4. Before the tube 1 is passed over the bag-like package 9, its upper end has been cut open so that after passing the tube over the package, the entire contents or part of the contents thereof can be emptied into the tube 1 by lifting the lower end of the package 9. In this way, there will be practically no dust formation from the material in the package 9.
- the manual efforts required for mixing the batch can be further reduced by using a rocker consisting of a cross 10 as shown in Fig. 5.
- the cross 10 more specifically has arms on the ends of which the handles of the tube 1 are supported.
- the vertical part of the cross serves as a supporting leg the lower end of which engages the stationary supporting surface.
- lifting movements described above may just as well be executed by mechacal means. They can also be performed with one end of the tube fixed, e.g. hung from a hook, while the other end of the tube is alternately lifted and lowered to a level respectively above and below the fixed end of the tube which, in this case, should however not rest on a supporting surface.
- the tube need not be open or openable at any of its ends but may have a suitable opening provided between the ends.
- the tube may also serve as a package for the granular and/or pulverulent materials.
Abstract
Description
- The present invention relates to a method for mixing granular and/or pulverulent materials with each other and/or a liquid.
- When mixing e.g. concrete in small batches, as in small repair jobs or the like, the components are usually placed on a board or in a receptacle and manually mixed with each other by means of a shovel or other tool. This is a heavy and time-consuming toil. The necessary cleaning of the board or the receptacle after completed use also is a laborious task. Although there are mechanical mixers with mixing means rotating relative to a mixing receptacle, these mixers do not always provide a satisfactory mixing effect and also are relatively expensive.
- A first object of the invention therefore is to provide a method of the type stated by way of introduction, which ensures efficient mixing with small efforts and at a low cost.
- When mixing pulverulent materials, there usually is a substantial formation of dust which may be environmentally unacceptable. The problems of dust formation may be encountered in both manual and mechanical mixing. Another object of the invention is to entirely eliminate the emission of dust to the environment.
- These two objects of the invention are achieved by a method of the type stated in the introduction to this specification, which has the features disclosed by appended
claim 1. - To make it easier to perform the lifting movements, each end of the tube preferably is provided with a handle. These handles may consist of holes through the tube at the ends thereof.
- In order to introduce the batch in the tube, this is suitably open or openable at least at one end thereof. If the other end of the tube is closed, the tube may also serve as a package for the granular and/or pulverulent materials.
- To ensure a dust-free supply of the granular and/or pulverulent materials from a standard package, e.g. a bag, the circumference of the tube is made larger than the circumference of the package. In this manner, the open end of the tube can be passed over the package which can thus be emptied of its entire contents or part thereof in a dust-free manner.
- Preferrably, the tube is made of a transparent material, such that the progress of the mixing operation can be directly observed.
- It is evident that the invention ensures efficient mixing with only small manual efforts. Further, the dusting and cleaning problems are reduced to an acceptable level.
- The tube also offers the advantage of allowing convenient transport of the mixed material to the place of use. Cleaning of the tube normally consists only in washing the inside of the tube. If some of the mixed material is left in the tube so as to dry and get stuck to the inner side thereof, it can easily be removed by lightly shaking the tube thanks to the pliability thereof.
- It should be emphasised that the invention is not restricted to the mixing of concrete but is also well suited for mixing any granular and/or pulverulent materials with or without the addition of liquid.
- The invention will now be described in more detail hereinbelow with reference to the accompanying drawings. Fig. 1 is a top plan view of an embodiment of the device used according to the invention. Fig. 2 shows an alternative embodiment of the device according to Fig. 1. Fig. 3 is a side view of the device according to Fig. 1 containing a batch ready for mixing. Fig. 4 is an example showing how the device can be filled with materials to be mixed. Fig. 5 shows the device in Fig. 3 with a cross for further reducing the mixing efforts.
- The device used according to the invention and shown in Figs. 1-3 consists of a
tube 1 of a pliableweb having ends ends - The doubled end portions of the
tube 1 and the holes 4 and 5 thus provide a handle at each end of thetube 1. Theends strip 6 shown in Fig. 2, which has a hole corresponding to the hole 4. - The use of the device according to the invention is illustrated in Fig. 3, where a batch 7 of granular and/or pulverulent materials and a liquid, e.g. a batch of sand, cement and water, has been placed in the central part of the
tube 1. This central part of thetube 1 rests on a stationary supporting surface 8, and theends ends ends - Practical tests have shown that the device now described provides highly efficient mixing in a very short time and with small efforts.
- In order to fill the
tube 1 with the materials to be mixed, the tube suitably is open at least at one end thereof. Further, thetube 1 has such a circumference that it can be passed over a package 9 with the material to be mixed, as shown in Fig. 4. Before thetube 1 is passed over the bag-like package 9, its upper end has been cut open so that after passing the tube over the package, the entire contents or part of the contents thereof can be emptied into thetube 1 by lifting the lower end of the package 9. In this way, there will be practically no dust formation from the material in the package 9. - The manual efforts required for mixing the batch can be further reduced by using a rocker consisting of a
cross 10 as shown in Fig. 5. Thecross 10 more specifically has arms on the ends of which the handles of thetube 1 are supported. The vertical part of the cross serves as a supporting leg the lower end of which engages the stationary supporting surface. By rocking the cross back and forth, as indicated by the double arrow, alternate lifting of theends tube 1 is achieved. - It goes without saying that the lifting movements described above may just as well be executed by mechacal means. They can also be performed with one end of the tube fixed, e.g. hung from a hook, while the other end of the tube is alternately lifted and lowered to a level respectively above and below the fixed end of the tube which, in this case, should however not rest on a supporting surface.
- Modifications of the tubular device described above are of course possible within the scope of the invention. Thus, the tube need not be open or openable at any of its ends but may have a suitable opening provided between the ends. The tube may also serve as a package for the granular and/or pulverulent materials.
Claims (10)
- A method for mixing granular and/or pulverulent materials with each other and/or with a liquid, characterised by the steps of placing a batch (7) of the materials to be mixed in a tube (1) formed of a pliable web, and alternatively lifting the ends (2, 3) of the tube relative to said batch.
- A method as claimed in claim 1, characterised in that a part of the tube (1) supporting the batch (7) is placed on a fixed supporting surface before commencing said alternate lifting which is carried out while maintaining part of the tube in contact with said supporting surface.
- A method as claimed in claim 1 or 2, characterised in that the alternate lifting is performed by means of handles (4, 5) provided on each end (2, 3) of the tube (1).
- Method as claimed in claim 3, characterised in that the alternate lifting is performed using holes (4, 5) through doubled portions of the tube (1) at the ends (2, 3) thereof.
- Method as claimed in claim 3 or 4, characterised by the use of a tube (1) the ends (2, 3) of which are provided with stiffening strips (6).
- A method as claimed in any one of claims 1-5, characterised in that the materials to be mixed are introduced through an open or openable end of the tube (1).
- Method as claimed in claim 6, characterised by the use of a tube which is closed at its other end and serves as a package for the granular and/or pulverulent materials.
- Method as claimed in any one of claimes 1-7, characterised by the step of supporting the ends (2, 3) of the tube (1) by means of arms of a rocker having a leg supporting said arms, and performing said alternate lifting by tilting the rocker back and forth.
- Method as claimed in any one of claims 1-8, characterised by the use of a tubular web consisting of a transparent material.
- Method as claimed in claim 1, characterised by the use of a tube (1) having an opening provided between its ends (2, 3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8703001 | 1987-07-30 | ||
SE8703001A SE461133B (en) | 1987-07-30 | 1987-07-30 | DEVICE FOR MIXING CORN AND / OR POWDERED MATERIALS WITH EACH OTHER AND / OR WITH A SCIENTIFIC |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0368917A1 EP0368917A1 (en) | 1990-05-23 |
EP0368917B1 true EP0368917B1 (en) | 1993-01-13 |
Family
ID=20369200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88906846A Expired - Lifetime EP0368917B1 (en) | 1987-07-30 | 1988-07-29 | Mixing method |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0368917B1 (en) |
AU (1) | AU2135888A (en) |
DE (1) | DE3877580T2 (en) |
DK (1) | DK14090A (en) |
FI (1) | FI900452A0 (en) |
SE (1) | SE461133B (en) |
WO (1) | WO1989000884A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6398401B1 (en) | 2000-03-29 | 2002-06-04 | Joseph G. Arceneaux | Quick-mix cement mixing and dispensing bag |
GB2366527A (en) * | 2000-09-07 | 2002-03-13 | Paul Karslake | A bag or trough for mixing cement or other flowable materials by hand |
CN108435499B (en) * | 2018-05-18 | 2023-12-29 | 东莞德威铸造制品有限公司 | Oil polishing machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3860219A (en) * | 1969-11-20 | 1975-01-14 | Jr Bryan W Nickerson | Process for manually mixing cement |
-
1987
- 1987-07-30 SE SE8703001A patent/SE461133B/en not_active IP Right Cessation
-
1988
- 1988-07-29 DE DE8888906846T patent/DE3877580T2/en not_active Expired - Fee Related
- 1988-07-29 WO PCT/SE1988/000389 patent/WO1989000884A1/en active IP Right Grant
- 1988-07-29 EP EP88906846A patent/EP0368917B1/en not_active Expired - Lifetime
- 1988-07-29 AU AU21358/88A patent/AU2135888A/en not_active Abandoned
-
1990
- 1990-01-17 DK DK014090A patent/DK14090A/en not_active Application Discontinuation
- 1990-01-29 FI FI900452A patent/FI900452A0/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8703001L (en) | 1989-01-31 |
DE3877580T2 (en) | 1993-07-22 |
SE461133B (en) | 1990-01-15 |
DK14090D0 (en) | 1990-01-17 |
SE8703001D0 (en) | 1987-07-30 |
DK14090A (en) | 1990-01-29 |
EP0368917A1 (en) | 1990-05-23 |
DE3877580D1 (en) | 1993-02-25 |
WO1989000884A1 (en) | 1989-02-09 |
AU2135888A (en) | 1989-03-01 |
FI900452A0 (en) | 1990-01-29 |
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