GB1599856A - Mixing apparatus - Google Patents
Mixing apparatus Download PDFInfo
- Publication number
- GB1599856A GB1599856A GB7522/78A GB752278A GB1599856A GB 1599856 A GB1599856 A GB 1599856A GB 7522/78 A GB7522/78 A GB 7522/78A GB 752278 A GB752278 A GB 752278A GB 1599856 A GB1599856 A GB 1599856A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixing chamber
- screw
- mixing
- metering
- feed channel
- 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
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
- B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
-
- 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
- B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
- B01F27/2123—Shafts with both stirring means and feeding or discharging means
-
- 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
- B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
-
- 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
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
-
- 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
- B01F35/10—Maintenance of mixers
- B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
-
- 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
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Description
(54) IMPROVEMENTS IN OR RELATING TO MIXING APPARATUS
(71) We, MATHIS FERTIGPUTZ
GMBH, a German body corporate of 7801
Merdigen Germany, do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
This invention concerns improvements in or relating to mixing apparatus for the continuous production of mixed mortar, or cement from a dry mortar, or cement, supplied to the apparatus and water mixed inside the apparatus, the dry material being conveyed by means of a metering screw through a feed channel into a mixing chamber where the water is added.
Apparatus of the above type is already known. Metering screws are used in which the threads are arranged in the form of a helix on a continuous shaft or in which hollow screws running on a helix are provided. The problem arises, however, that inside a supply of dry mortar brought into the region of this metering screw a channel is generally formed, whereas outside the region of the screw dry mortar remains undisturbed. Segregation and metering inaccuracies can thus occur.Also, the untouched dry mortar can occasionally gradually agglomerate due to the humidity of the air and lead to undesirable contamination of the apparatus which is difficult to eliminate it is therefore an object of the invention to provide apparatus of the abovementioned type in which metering is more accurate and constant conveyance of the dry mortar supplied is ensured from the feed region into the mixing chamber.
According to the invention we provide apparatus for the continuus production of mortar or cement comprising a charging container for receiving dry mortar or cement, a feed channel arranged to receive the dry mortar or cement from the charging container, and a mixing chamber arranged to receive dry mortar or cement from the feed channel and having means for supplying water to the mortar or cement for mixing therewith, a metering screw having a first portion disposed in said feed channel for meteringly conveying said dry mortar or cement to the mixing chamber and a second portion, extending into charging container which is provided with at least one interruption.
A preferred for of construction consists in that an interruption in its thread is provided after one complete thread whilst the shaft or other core carrying these threads is continuus. The effect of this is that dry mortar can be fed at each such interruption in the screw for example from above, to be picked up by the screw and conveyed further, whereas with a continuous screw the threads would be filled and would thus not allow any further material to be taken up. Inside the feed channel the helix of the screw thread is preferably uninterrupted. It is further preferred to provide scoops or blades which project radially beyond the outer periphery of the metering screw over at least part of the length of the metering screw. As a result of this dry mortar is picked up and brought into the region of the screw even from outside the actual range of the metering screw.Any material emerging again is taken up at the said interruptions by the return scoops and brought again into the screw region.
It is preferred that the additional scoops have an inclination opposed to the pitch of the metering screw.
Dry mortar picked outside the range of the metering screw is thus conveyed back into the starting region of the metering screw and thus into the region of a filling opening. This dry mortar conveyed back is therefore always guided again to the beginning of the screw and, consequently, into its conveying range. Circulation is simultaneously achieved within the entire feed region and dry mortar is prevented from settling outside this screw region.
The additional radially projecting scoops are preferably arranged to be distributed over at least part of the length of the second portion of the metering screw. It is possible thereby to achieve within the charging region good circulation of the dry mortar supplied and reliable conveyance thereof into the feed channel.
As a result of the above-mentioned features there is provided a conveying and metering screw of simple construction, which, however, brings an accurate and precise quantity of dry mortar into the mixing chamber, so that metering errors are largely excluded. Tests have shown that the apparatus described yields the best results in constant operation, favourable wearing values being achieved at the same time.
An especially preferred form of construction of the invention can consist in that the mixing chamber has at least one openable closure. The inside of the mixing chamber can in this way be reached without any substantial dismantling work and cleaning can be carried out. At the transition from the metering region to the wet mixing region where water is added reactions begin during mixing of dry mortary, which can, if the occasion arises, lead to adherence of the mortar after lengthy breaks in work in this region where complete mixing of the mortar with the necessary quantity of water is not always guaranteed. The continued operation of the apparatus can therefore be disrupted by such adherence of e.g. insufficiently mixed mortar. By the abovementioned possibility of opening the mixing chamber rapid cleaning and removal of such lumps and particles of mortar are therefore possible.
It is especially advantageous if the mixing chamber on its end face on the side remote from the metering screw, has mounted coaxially with the mixing screw, a cover preferably openable by means of a snap closure. The mixing screw is mounted so as to be longitudinally displaceable at its end facing the metering screw and is arranged to withdraw from its seating in a longitudinal direction. It is then sufficient to open the above-mentioned cover on the end face in order to extract the mixing screw, which can be separated easily from the metering screw which is coaxial with it, in order to clean the clogged region inside the mixing chamber.
A form of construction of particular advantage consists in the entire mixing chamber being arranged on the housing of the metering screw so as to be movable away therefrom. It is especially appropriate if the mixing chamber is connected via a hinge and a snap closure to the housing of the metering screw and is pivotable on the hinge away from this housing after the snap closure is released. It is thus possible directly to reach the area most susceptible to such contamination with adhering mortar and this mortar can be effectively knocked out of the mixing chamber from one side. It is advantageous if the hinged connection between the mixing chamber and metering screw housing is arranged on the underside of the apparatus and the mixing chamber can be swung down on the hinge. Cleaning is then assisted by the force of gravity.
Especially with a combination of individual or all the above-mentioned measures the mixing screw can be removed in a simple way and the mixing housing swung down, so that easy, rapid cleaning of retained particles of mortar is possible. The entire apparatus is made operational again just as quickly by swinging the mixing chamber up again and locking it with a snap closure or the like, after which the mixing screw can be pushed in and the front cover closed.
The invention ,together with its principal features will now be described with reference to the accompanying drawings in which:
Figure 1 is a side view, partly in longitudinal section, of apparatus according to the invention;
Figure 2 is an enlarged cross section on the line II-II of Figure 1;
Figure 3 is a much enlarged view of part of the metering screw in the feed region with an additional, radially projecting scoop;
Figure 4 is likewise a side view, partly in longitudinal section, of apparatus according to the invention, the mixing region being shown in section,
Figure 5 is a plan view of the apparatus according to Figure 4.
Apparatus 1 arranged preferably substantially horizontally in operation serves for the continuous preparation of mixed mortar or cement from a dry mortar supplied to the apparatus 1. The supply can take place especially from above in way desired by means of an attachment, not shown in detail, or a special filling device or from bags at the inlet 2. Inside the apparatus water is mixed with this dry mortar, the dry mortar first being conveyed by means of a metering screw 3 through a feed channel 4 into a mixing chamber 5 where the water is added. The quantity of mixing water is regulated in a way not shown in detail by means of a suitable valve in dependence on the rate of revolution of the metering screw 3.
Scoops or blades 6 projecting radially beyond the outer periphery of this screw 3 are arranged over at least part of the length of the metering screw 3. These additional scoops 6 have an inclination opposed to the pitch of the actual screw, as shown in Figure 3. The scoop surface can intersect the thread of the screw 3, if desired approximately at right angles.
These additional scoops are located at least underneath the inlet 2. In the embodiment the metering screw 3 is divided into at least two sections, the first section 7 of which lies in a preferably widened region 8 of the dry mortar feed - hereinafter also referred to as charging region 8 - and the second section 9 of which is arranged inside the feed channel 4. The additional, radially projecting scoops 6 preferably staggered in relation to one another on the periphery are distributed over at least part of the length of the feed section 7. It is thus ensured in the charging region 8 that the falling dry mortar situated underneath the metering screw or outside its conveying region is always picked up and lifted again so that it can enter the screw region. The opposed pitch of the scoops 6 prevents accumulation and ensures circulation within the charging region 8.It should also be mentioned that such a circulating effect can also be achieved with scoops 6 of a different shape and arrangement, provided that they project beyond the edge of the screw. The inclination of the scoops shown and described provides an additional component counter to the conveying direction which further enhances the circulating effect.
Figure 1 shows that in the feed region 8, hence in its section 7, the metering screw 3 has gaps or interruptions 10 along the length of the thread. An interruption 10 is provided approximately after one complete thread, the shaft 11 or other core supporting
these threads being continuous. Further
admission of dry mortar to the conveying
region of the screw is thus made possible, in
practice, at the place of each interruption
10. The quantity of dry mortar supplied by
the scoops 6 and from the inlet 2 can
therefore be picked up at several points and
conveyed further. A channel which is
formed within the charging region 8 by the
conveying screw 3 and outside which dry
mortar can be deposited is therefore pre
vented.Only inside the feed channel 4 is the
thread of the metering screw 3 uninter
rupted; the outside diameter of the metering
screw 3 corresponds substantially in its
metering section 9 to the inside diameter of
the feed channel 4 through which it extends
so that it is not possible for dry mortar to be
deposited there.
The scoops 6 can be welded onto the
outer edges of the screw threads and can, if
necessary, engage in slots or have slots
engaging on the outer edge of a screw
thread.
Both the screw threads and the scoops 6 are preferably of wear-resistant steel.
It should be mentioned that the end faces of the screw sections opposed to the conveying direction can be made narrow, preferably like a knife edge, at the end of an interruption 10, so that the dry mortar can be picked up effectively.
Figure 1 shows that the cross section of at least the mixing chamber 5, preferably also of the charging region 8, is widened in relation to that of the coaxial feed channel 4 and in the embodiment at least the bottom 12 of the mixing chamber 5 is lower than the lower feed channel edge 13. In the mixing chamber 5 the mixing water is added and the above-mentioned measure prevents mixing water from entering the feed channel 4 or even the feed region 8, if, for example, rotation of the metering screw 3 is briefly interrupted. The fact that the volume of the mixing chamber 5 is larger than that of the entire feed channel 4 also contributes to this. Even when the metering screw is stopped, sufficient room is available for the mixing water without it having to penetrate into the feed channel 4.Furthermore, water situated inside the mixing chamber 5 is prevented from flowing back in this way into the feed channel 4. When the conveying screw is moving, scarcely enough material can be supplied through the feed channel 4 for the mixing chamber 5 to be filled up to half-way or even above that, especially as the mixed mortar is constantly removed and ejected from the mixing chamber 5.
Tests have shown that apparatus of the above-mentioned type allows continuous or intermittent operation, but in any case fault-free operation.
Figure 5 shows the the mixing chamber 5 containing the mixing screw 14 can be swung down on a hinge 16 to one side. For this, however, it is necessary first to detach the mixing screw 14 from the the metering screw 3 to which it is positively connected coaxially and in the direction of rotation. For this, the mixing chamber 5 has on its end face on the side turned away from the metering screw 3 arranged coaxially to the mixing screw 14 a cover 18 openable preferably by means of at least one, in the embodiment by means of two snap closures 17 and the mixing screw 14 is mounted to be longitudinally displaceable at its end facing the metering screw 3 and extractable from its seat in a longitudinal direction.The cover 18 has a constantly open outlet opening for the mixed mortar or does not entirely cover the end opening 19 of the mixing chamber 5 (see
Figure 4); also, the cover 18 holds a mounting 20 for the end 21, remote from the metering screw, of the mixing screw 14 or other stirring or mixing tool. By the mixing screw 14 mixed mortar is therefore constantly ejected below the cover 18 while the apparatus 1 is in operation. If, however, the mixing chamber 5 is to be cleaned, the cover 18 is opened and the mounting 20 consequently released. The mixing screw 14 together with its shaft can then be drawn out of the second mounting. It is afterwards possible to pivot the entire mixing chamber 5 on the hinge 16, it being necessary first to open the snap closure 22 provided in the region of this hinge.Instead of this snap closure 22 any other closure can be provided optionally by means of screws.
It should be mentioned that the hinged connection 16 could also be arranged on the underside of the apparatus, that is, the entire apparatus 1 could be arranged turned through 90C in relation to the illustration in
Figures 4 and 5, only the cover retaining its position. After the various closures were opened, it would then be possible to swing the mixing chamber down, provided that the space conditions inside tile apparatus permitted.
After the mixing chamber 5 has been swung down or pivoted out, it can be cleaned throughout, so that even mortar remains which were not adequately picked up by the mixing water, but are still moist enough to become sticky can be removed.
Expensive dismantling and subsequent assembly work is avoided, yet such cleaning is frequently possible rapidly and in a desirable way.
Figure 5 shows that the hinge 16 is provided on a protecting flange 23 arranged on the metering channel 4, so that an un-obstructed pivoting movement and, in the assembled condition, good sealing is possible. The mixing chamber 5, also, has a corresponding companion flange 24.
WHAT WE CLAIM IS:
1. Apparatus for the continuous production of mortar or cement comprising a charging container for receiving dry mortar or cement, a feed channel arranged to receive the dry mortar or cement from the charging container, and a mixing chamber arranged to receive dry mortar or cement from the feed channel and having means for supplying water to the mortar or cement for mixing therewith, a metering screw having a first portion disposed in said feed channel for meteringly conveying said dry mortar or cement to the mixing chamber and a second portion, extending into the charging container which portion is provided with at least one interruption.
2. Apparatus as claimed in claim 1, wherein an interruption is provided after a complete thread of said screw, the shaft or other core supporting the thread being continuous.
3. Apparatus according to claim 1 or 2, wherein the thread of the screw is uninterrupted inside the metering channel.
4. Apparatus as claimed in any one of claims 1 to 3 wherein scoops or blades which project radially beyond the outer periphery of the metering screw are arranged over at least part of the length of the second portion of the metering screw.
5. Apparatus according to claim 4, wherein the scoops have an inclination opposed to the pitch of the metering screw.
6. Apparatus according to claim 5, wherein the scoop surface intersects the thread of the screw approximately at right angles.
7. Apparatus according to any one of claims 4 to 6, wherein the scoops or blades are welded onto the outer edges of the threads and engage in slots therein or are themselves slotted.
8. Apparatus according to any one of claims 4 to 7 wherein both the threads and the scoops consist of wear-resistant steel.
9. Apparatus according to any one of the preceding claims wherein the outside diameter of the metering screw, at least in the portion passing through the feed channel corresponds to the inside diameter of the feed channel.
10. Apparatus according to claim 9, wherein the outside diameter of the thread in the portion of the metering screw passing through said container corresponds to the outside diameter of the thread in the feed channel.
11. Apparatus according to any one of claims 1 to 10 wherein the end faces of the thread sections opposed to the conveying direction are knifed edged.
12. Apparatus according to any one of claims 1 to 11 wherein the cross section of at least the mixing chamber, and also of the charging container is widened in relation to that of the coaxial feed channel, the bottom of the mixing chamber being lowered in relation to the lower edge of the feed channel.
13. Apparatus according to any one of claims 1 to 12 wherein the volume of the mixing chamber is larger than that of the entire feed channel.
14. Apparatus according to any one of claims 1 to 13 wherein the mixing chamber has at least one openable closure.
15. Apparatus according to claim 14 wherein the mixing chamber has on its end face on the side turned away from the metering screw and arranged coaxially to a mixing screw a cover openable by means of at least one snap closure, the mixing screw being mounted so as to be longitudinally displaceable at its end facing the metering screw and extractable from its seating in a longitudinal direction.
16. Apparatus according to claim 15 wherein the cover has a constantly open outlet opening for mixed material and a
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (21)
1. Apparatus for the continuous production of mortar or cement comprising a charging container for receiving dry mortar or cement, a feed channel arranged to receive the dry mortar or cement from the charging container, and a mixing chamber arranged to receive dry mortar or cement from the feed channel and having means for supplying water to the mortar or cement for mixing therewith, a metering screw having a first portion disposed in said feed channel for meteringly conveying said dry mortar or cement to the mixing chamber and a second portion, extending into the charging container which portion is provided with at least one interruption.
2. Apparatus as claimed in claim 1, wherein an interruption is provided after a complete thread of said screw, the shaft or other core supporting the thread being continuous.
3. Apparatus according to claim 1 or 2, wherein the thread of the screw is uninterrupted inside the metering channel.
4. Apparatus as claimed in any one of claims 1 to 3 wherein scoops or blades which project radially beyond the outer periphery of the metering screw are arranged over at least part of the length of the second portion of the metering screw.
5. Apparatus according to claim 4, wherein the scoops have an inclination opposed to the pitch of the metering screw.
6. Apparatus according to claim 5, wherein the scoop surface intersects the thread of the screw approximately at right angles.
7. Apparatus according to any one of claims 4 to 6, wherein the scoops or blades are welded onto the outer edges of the threads and engage in slots therein or are themselves slotted.
8. Apparatus according to any one of claims 4 to 7 wherein both the threads and the scoops consist of wear-resistant steel.
9. Apparatus according to any one of the preceding claims wherein the outside diameter of the metering screw, at least in the portion passing through the feed channel corresponds to the inside diameter of the feed channel.
10. Apparatus according to claim 9, wherein the outside diameter of the thread in the portion of the metering screw passing through said container corresponds to the outside diameter of the thread in the feed channel.
11. Apparatus according to any one of claims 1 to 10 wherein the end faces of the thread sections opposed to the conveying direction are knifed edged.
12. Apparatus according to any one of claims 1 to 11 wherein the cross section of at least the mixing chamber, and also of the charging container is widened in relation to that of the coaxial feed channel, the bottom of the mixing chamber being lowered in relation to the lower edge of the feed channel.
13. Apparatus according to any one of claims 1 to 12 wherein the volume of the mixing chamber is larger than that of the entire feed channel.
14. Apparatus according to any one of claims 1 to 13 wherein the mixing chamber has at least one openable closure.
15. Apparatus according to claim 14 wherein the mixing chamber has on its end face on the side turned away from the metering screw and arranged coaxially to a mixing screw a cover openable by means of at least one snap closure, the mixing screw being mounted so as to be longitudinally displaceable at its end facing the metering screw and extractable from its seating in a longitudinal direction.
16. Apparatus according to claim 15 wherein the cover has a constantly open outlet opening for mixed material and a
mounting for the end of the mixing screw remote from the metering screw.
17. Apparatus according to any one of claims 1 to 16 wherein the entire mixing chamber is arranged on the housing of the metering screw and is movable away therefrom.
18. Apparatus according to claim 17 wherein the mixing chamber is connected via a hinge and a snap closure to the housing of the metering screw and is pivotable away from this housing on said hinge after the snap closure has been released.
19. Apparatus according to claim 18 wherein the hinged connection is arranged between the mixing chamber and the feed channel on the underside of the apparatus the mixing chamber being swingable about the hinge.
20. Apparatus according to claim 18 or 19 wherein the hinge is provided on a projecting flange arranged on the metering channel the mixing chamber having a registering flange.
21. Mixing apparatus substantially as described with reference to the accompany ing drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7522/78A GB1599856A (en) | 1978-02-24 | 1978-02-24 | Mixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7522/78A GB1599856A (en) | 1978-02-24 | 1978-02-24 | Mixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1599856A true GB1599856A (en) | 1981-10-07 |
Family
ID=9834748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7522/78A Expired GB1599856A (en) | 1978-02-24 | 1978-02-24 | Mixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1599856A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3142053A1 (en) * | 1980-10-31 | 1983-05-05 | Mathis System-Technik Gmbh, 7801 Merdingen | "METHOD AND DEVICE FOR CONTINUOUSLY MAKING MORTAR, PLASTER, CONCRETE OR THE LIKE BUILDING MATERIAL OR MATERIAL" |
| EP0147631A2 (en) * | 1983-12-23 | 1985-07-10 | BHS-Bayerische Berg-, Hütten- und Salzwerke Aktiengesellschaft | Dry cement mixing installation |
| EP0218864A2 (en) * | 1985-09-13 | 1987-04-22 | Heidelberger Zement AG | Device and method for continuously making a hydraulically setting mass |
| FR2671754A1 (en) * | 1991-01-22 | 1992-07-24 | Omniplastic Sa | METHOD AND DEVICE FOR THE CONTINUOUSLY PREPARING, TRANSFERING AND APPLYING AQUEOUS FLUID MINERAL SUSPENSION OF PUNCHING. |
| EP1527811A1 (en) * | 2003-10-30 | 2005-05-04 | WAM S.p.A. | An improved mixing and transporting device for powders and powder-liquid mixtures |
| CN110815562A (en) * | 2019-11-12 | 2020-02-21 | 浙江远新环保科技有限公司 | Make things convenient for even slurry solidification of spreading additive to use adding material machine |
| EP3664981B1 (en) | 2017-08-09 | 2023-04-05 | Sika Technology AG | System for applying a building material |
| EP3600809B1 (en) | 2017-08-09 | 2023-04-26 | Sika Technology AG | System for applying a building material |
-
1978
- 1978-02-24 GB GB7522/78A patent/GB1599856A/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3142053A1 (en) * | 1980-10-31 | 1983-05-05 | Mathis System-Technik Gmbh, 7801 Merdingen | "METHOD AND DEVICE FOR CONTINUOUSLY MAKING MORTAR, PLASTER, CONCRETE OR THE LIKE BUILDING MATERIAL OR MATERIAL" |
| EP0147631A2 (en) * | 1983-12-23 | 1985-07-10 | BHS-Bayerische Berg-, Hütten- und Salzwerke Aktiengesellschaft | Dry cement mixing installation |
| EP0147631A3 (en) * | 1983-12-23 | 1987-05-20 | Bhs-Bayerische Berg-, Hutten- Und Salzwerke Aktiengesellschaft | Dry cement mixing installation |
| EP0218864A2 (en) * | 1985-09-13 | 1987-04-22 | Heidelberger Zement AG | Device and method for continuously making a hydraulically setting mass |
| EP0218864A3 (en) * | 1985-09-13 | 1987-08-05 | Heidelberger Zement Ag | Device and method for continuously making a setting mass |
| FR2671754A1 (en) * | 1991-01-22 | 1992-07-24 | Omniplastic Sa | METHOD AND DEVICE FOR THE CONTINUOUSLY PREPARING, TRANSFERING AND APPLYING AQUEOUS FLUID MINERAL SUSPENSION OF PUNCHING. |
| EP0496685A1 (en) * | 1991-01-22 | 1992-07-29 | Omniplastic S.A. | Method and device for preparing, transferring and applying continuously a fluid aqueous mineral cleaning down suspension |
| EP1527811A1 (en) * | 2003-10-30 | 2005-05-04 | WAM S.p.A. | An improved mixing and transporting device for powders and powder-liquid mixtures |
| EP3664981B1 (en) | 2017-08-09 | 2023-04-05 | Sika Technology AG | System for applying a building material |
| EP3600809B1 (en) | 2017-08-09 | 2023-04-26 | Sika Technology AG | System for applying a building material |
| CN110815562A (en) * | 2019-11-12 | 2020-02-21 | 浙江远新环保科技有限公司 | Make things convenient for even slurry solidification of spreading additive to use adding material machine |
| CN110815562B (en) * | 2019-11-12 | 2021-02-19 | 浙江远新环保科技有限公司 | Make things convenient for even slurry solidification of spreading additive to use adding material machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |