US3895781A - Apparatus for applying glue to wood shavings, fibers and similar cellulose containing substances - Google Patents

Apparatus for applying glue to wood shavings, fibers and similar cellulose containing substances Download PDF

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Publication number
US3895781A
US3895781A US320590A US32059073A US3895781A US 3895781 A US3895781 A US 3895781A US 320590 A US320590 A US 320590A US 32059073 A US32059073 A US 32059073A US 3895781 A US3895781 A US 3895781A
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Prior art keywords
mixing chamber
mixing
glue
deflector
dry glue
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US320590A
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English (en)
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Wilhelm Lodige
Fritz Lodige
Josef Lucke
Wilhelm Schluter
Heinrich Beckschulte
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0236—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with the stirrers rotating about an horizontal axis, e.g. in consecutive casings

Definitions

  • ABSTRACT A method of and device for applying glue to wood shavings, fibers and similar cellulose containing substances, according to which the glue to be applied is circulated within the region of the cylindrical wall of a cylindrical mixing chamber while a deflector forming a zone of turbulence for the material being circulated extends into the circulating material, a feeding device for feeding dry glue into the mixing chamber leading into the range of action of the deflector.
  • the present invention relates to a device for applying glue to wood shavings, fibers or similar particles of cellulose containing substances such as wood, waste bagasse, etc., according to which there is provided at least one cylindrical mixing chamber in which the particles to which the glue is to be applied and which have a certain moisture, in the form of a shaving, or the like ring are circulated within the region of the cylindrical chamber wall.
  • the ratio of resin component to liquid component is predetermined to a great extent.
  • the disadvantageous results of a necessary determination of this ratio become particularly evident when manufacturing weather and moisture-resistant plates or profiles of shavings as is the case, for instance, when preparing windows and outer paneling.
  • a proportion of from 25% solid resin in the finished shaving plate is necessary.
  • the glue liquid of, for instance, 50% solid resin to 50% water an extremely high moisture component is obtained so that the plates when being subjected to the pressing operation are destroyed by the escape of the water vapor.
  • a less high solid resin proportion in the manufactured plate, for instance of the water proportion inherent thereto will yield considerable drawbacks at least as to the employed method, inasmuch as the subsequent pressing operation has to be carried out very slowly in order to avoid damage.
  • the shaving When adding dry glue, the shaving must at its outer surfaces always be so moist that it picks up the powder or dust and causes the same to adhere thereto. If, however, the shavings are moist, also the drum walls and tools will be moist in view of the mixing operation. inasmuch as the glue dust is very hygroscopic, it thus adheres to the drum walls and tools.
  • a deposit on the drum walls is furthermore favored by the fact that the volume weight of the glue in powder form is from 8 to 10 times greater than that of the shaving material so that there exists the danger of centrifuging the glue dust out and, in particular, that some glue lumps are formed.
  • an object of the present invention to provide a device of the general type set forth above, by means of which it will be possible for increasing the resin proportion without simultaneously increasing the water proportion, to add to the ring of shaving material in a simple manner a resin proportion in powder form so that a good intermixture will be obtained while simultaneously preventing the formation of lumps.
  • FIG. 1 diagrammatically illustrates a longitudinal section through the central portion of a mixing device according to the invention.
  • FIG. 2 represents a cross section through the mixing device of FIG. 1, said section being taken along the line 11-11 of FIG. 1.
  • FIG. 2a shows a modification of structure of FIG. 2 having cutout therewith.
  • FIG. 3 diagrammatically illustrates in a highly simplified manner a longitudinal section through a modified form of the device according to the invention.
  • FIG. 4 represents a section taken along the line IVIV of FIG. 3.
  • a deflector extends into the circulating flow of material which deflector forms a turbulent zone for the material while feeding means for the pulverous dry glue lead into the range of action of said deflector.
  • each individual shaving has only very briefly an opportunity to pick up a small bulence, the wood shavings themselves form the trans porting means for the individual glue particles whereby a complete and above all immediate mixing in of the individual glue particles into the shaving material is effected before after absorbing humidity at conglomeration of spatially not yet separated powder particles to lumps or the like can occur.
  • the formation of an overpressure which might prevent the addition of glue or a sinking down of the powder onto the ring of shaving material within the region of turbulence is according to a particularly preferred design of the invention prevented by the fact that within the region of action of the deflector there is provided at least one venting zone of the cylindrical chamber.
  • the feeding device for the pulverous dry glue leads, according to a preferred embodiment into the mixing chamber behind the deflector when viewing in the direction of rotation of the material.
  • the pulverous material is already radially outside the rotating material subjected to a suction effect and without affecting or impeding the shavings is continuously fed to the extent to which the addition is desired.
  • a disturbance of this important effect by overpressure areas which could build up behind the lower pressure zone is effectively prevented by the fact that in the direction of rotation of k the material behind the feeding-in area for the dry glue there is provided an additional venting zone.
  • the method for applying glue to wood shavings and the like, base material in connection with the continuous manufacture of shaving plates while applying the device according to the invention is characterized primarily in that the wood shavings in a manner known per se are intimately intermixed with a liquid glue of a consistency which permits a satisfactory wiping and distribution of the glue.
  • the method according to the invention is furthermore characterized in that subsequently through the intervention of the feeding device a required or desired residual quantity of glue powder is added in dry form. In this way, independently of the required resin proportion, practically any desired quan tity of water in the shaving fleece may be preselected with regard to the requirements of the subsequent processing while it is limited in downward direction only by the required humidity of the mixing material whereupon the required quantity of liquid glue is determined in conformity with its composition.
  • the mixing machine illustrated in FIG. 1 has on the left side with regard to the drawing where the feeding in of the shavings is effected, a loosensing-up chamber 10, in which by a fast rotation of the mass of shavings, for instance, by means of mixing tools rotating about a horizontal shaft there is formed a ring of material.
  • This ring of material enters at 11 an adjacent mixing chamber 12 which likewise contains rotating mixing tools 13.
  • the mixing tools 13 which also in the other chambers and embodiments as well as other corresponding parts are designated with the same reference numerals are each mounted on a shaft 14.
  • the shaft 14 of the mixing chamber 12 has a feeding device for the liquid glue, which liquid glue is from the inside centrifuged to the rotating ring of material and split up.
  • the liquid glue prior to this centrifuging passes through feeding pipes 15 which are provided with bores.
  • a post-mixing chamber 16 the complete wiping of the liquid glue is effected on the shavings by shaving against shaving friction.
  • the shaving material passes into a mixing chamber 17 in which dry glue powder is admixed in a manner set forth below.
  • a mixing chamber 18 Connected to the mixing chamber 17 is a mixing chamber 18 in which a further homogenization is effected and from which the mixing material is withdrawn.
  • a deflector 19 which extends into the rotating flow of shaving material.
  • the deflector 19 comprises an impact plate 21 which is arranged substantially perpendicularly with regard to the direction of flow of the ring of material shown at 20.
  • the impact plate 21 is arranged substantially parallel to the axis of rotation which means perpendicularly with regard to the drawing plane.
  • a venting zone 22 which in the direction of flow of the shaving material is located ahead of the impact plate 21 or the deflector 19, the air which is carried along by the flow of shaving material and which backs up ahead of the deflector 19 can escape from the mixing chamber 17 in the direction indicated by the arrow 23.
  • a feeding device 24 for the pulverous material leads in at this point.
  • the thus formed feeding-in area 25 for the pulverous material is followed by a further venting zone 26 when viewing in the direction of rotation of the flow of material 20.
  • the venting zone 26 above all that air can escape which was also drawn in at the feeding point 25 for the pulverous material and which above all during the deviation of the flow of shavings is pressed out when again impacting upon the round wall of the chamber.
  • an air impermeable separating element 27 for instance, a partition or a separating plate.
  • the separating element 27 which preferably extends to the radially outer region of the axially forming flow of material prevents any inteference with the uniform suction within the region of the feeding-in area 25. Furthermore, the suction effect within the region of the area 25 is aided by the strong air flow which occurs in view of the subsequent venting zone 26.
  • the feeding in area 25 for the dry glue and the venting zones 22 and 26 are arranged within the region of the radially inner opening at least of one shaft-line extension or shaft 28 of the mixing chamber 17.
  • a particularly low quantity of material and short time of manufacture is possible due to the fact that the shaft like extension 28 is subdivided into three chambers 31, 32, 33 by partitions 29, 30 which are parallel to the axis of rotation. These three chambers comprise two lateral chambers 31 and 33 for feeding and an intermediate chamber 32 for the addition of a dry glue or another pulverous or granular material.
  • the addition of dry glue or powder is aided by the fact that the shaft like extension 28 can structurally easily be realized in dropping direction directly above the mixing chamber 17.
  • the partitions 29 and 30 at their radially inner range carry or form the deflector 19 and the impact plate 21 and the separating member 27.
  • the deflector 19 must at any rate extend into the circulating flow of material which means that it must not under all circumstances extend to a point inwardly of the drum inasmuch as the flow of material within the region of the device for adding the material will when leaving the drum wall imposing a certain direction of movement on the flow of material, move out of the range of the drum radius in the form of a horrctory parabola, and thus impacts upon the deflector 19 outside the circumference of the drum.
  • the air flow which is important for a proper function is furthermore aided considerably by the fact that the intermediate chamber 32 for adding the dry glue cross sectional wise tapers radially inwardly so that an injector like acceleration effect is exerted upon the pulverous material and the latter in greater independence from possibly occuring pressure variations in the low pressure area at the feeding in area 25 is fed in (arrow 34) spatially and time wise in a very homogenous manner.
  • the lateral chambers 31 and 33 are so designed that from the feeding zones 22 and 26 they taper radially outwardly so that, in other words, likewise in the flow direction (arrows 23 and 35) in view of the acceleration of the flow of the narrowing cross sections and the inherent static pressure drop, a proper escape of the excessive air is aided and assured.
  • the mixing tools 13 it is possible also to provide other tool types for rotating the flow of shaving material.
  • tools 13 are provided which rotate in the manner of a rake; said mixing tools 13 must pass by the stationary deflector 19.
  • the impacting plate 21 extends at least onto the vicinity of the path of movement of the radially outer-most ranges of the mixing tools 13. In this way a sufficient quantity of shaving material is caught and on the other hand, it is possible to equip the impact plate 21 with a radially continuous inner edge.
  • FIG. 3 and 4 differs from that of FIGS. 1 and 2 primarily in that instead of providing mixing tools 13 on parallel shaft 14 adjacent to each other in mixing chambers 10, l2, 16, 17 and 18, in which instance the flow of material passes through openings 11 between the mixing chambers while various components are admixed from the opening up chamber to the post-mixing and homogenizing chamber 18, there is provided a single large mixing chamber 36 with a shaft 37 carrying the mixing tools 13 while the rotating flow of material moves in axial direction of the shaft 37.
  • the addition of the shaving material is effected at the one axial end of the mixing chamber 36 through a feed shaft 38 into an opening up zone 39 from where the material moves axially into a mixing zone 40 in which the addition of the glue liquid is effected, then moves into a further zone 41 for post-mixing and wiping of the material to which liquid glue has been applied, and finally passes into a zone 42 in which in conformity with the mixing chamber 17 the addition of the granular material, namely the glue powder is effected.
  • the fast movement of the granulars of the powder with the wood shavings as transporting means to all possible areas of the ring of shaving material will bring about an instantaneous separation and saturation of the individual pulverous granulars so that there remains no opportunity for the formation of nests or lumps.
  • the invention is also fundamentally suitable for adding other pulverous materials to a pourable material which circulates preferably in a horizontal modifications chamber into which the powder is to be admixed uniformly and without the formation of lumps.
  • said mixing chamber means includes a first mixing chamber for receiving liquid glue and a second mix-.
  • said mixing chamber means is formed by a single longitudinal mixing chamber having a plurality of serially arranged mixing zones arranged one behind the other in the longitudinal direction of said mixing chamber and communicating with eadch other, said mixing chamber also including a rotatable shaft having said agitating means connected thereto and extending through all of said mixing zones, inlet means being provided at one end of said mixing chamber for feeding substance to be admixed into said mixing chamber, and outlet means being provided at the other end of said mixing chamber for withdrawing the finished mixed material.
  • said mixing chamber means includes: a plurality of individual mixing chambers arranged one behind the other with each mixing chamber communicating with the next following mixing chamber, a plurality of rotatable shafts respectively arranged in said mixing chambers, and a plurality of agitators respectively connected to said shafts for rotation therewith.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, and conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, said deflector means including a baffle plate.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, and an air impermeable separating element which when looking in the direction of rotation of said agitating means forms the rear confinement for the feeding-in area for dry glue.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture alone said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means.
  • conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, and an air impermeable separating element which when looking in the direction of rotation of said agitating means forms the front confinement for the feeding-in area of the dry glue.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, and a separating element for engagement with the radially outer range of the actually forming flow of the mixture in said mixing chamber.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combina tion: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, and conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, said mixing chamber means having an extension in the form of a shaft with a radially extending inner opening and in which the mouth of said conveying means is located within the range of said extension.
  • said extension in the form of a shaft includes partition wall means arranged substantially parallel to the axis of rotation of said agitating means and dividing said shaft into two lateral chambers for venting and an intermediate chamber for the admixture of dry glue.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, and conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said I mixing chamber means, that portion of said deflector means which extends into said mixing chamber means extendingalong a plane at least approximately perpendicular to the axis of rotation of said agitating means.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, and baffle plate means extending into said mixing chamber means beyondthe circular path of the outermost edge of said agitating means and being provided with cutouts for the passage therethrough of said agitating means.
  • a device for applying dry glue to shavings, fibers and similar cellulose containing substances, especially wood and waste bagasse which includes in combination: mixing chamber means with cylindrical chamber wall means and rotating agitating means for receiving and Y mixing the cellulose containing substance with glue, and circulating the thus formed mixture along said cylindrical chamber wall means, deflector means extending into said mixing chamber means for creating a zone of turbulence in a mixture circulating in said mixing chamber means, and conveying means having its mouth located within said mixing chamber means within the range of stagnation action of said deflector means for feeding only pulverous dry glue into said mixing chamber means, said deflector means extending into said mixing chamber means beyond the circular path of the outermost edge of said agitating means and being provided with cutouts for the passage therethrough of said agitating means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
US320590A 1971-12-31 1973-01-02 Apparatus for applying glue to wood shavings, fibers and similar cellulose containing substances Expired - Lifetime US3895781A (en)

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DE2165878A DE2165878C3 (de) 1971-12-31 1971-12-31 Vorrichtung zum Beleimen von Spänen

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US (1) US3895781A (de)
AT (1) AT330445B (de)
CA (1) CA984377A (de)
DE (1) DE2165878C3 (de)
GB (1) GB1421462A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165187A (en) * 1978-04-10 1979-08-21 Accuratio Systems, Inc. Apparatus for mixing and dispensing reactive fluids
WO1982001567A1 (en) * 1980-10-17 1982-05-13 Eugene D Small Cotton treating apparatus and process
US4797080A (en) * 1985-05-30 1989-01-10 Ika-Maschinenbau Janke & Kunkel Gmbh & Co. Kg Continuous kneading machine
US5403087A (en) * 1993-05-25 1995-04-04 Ask Corporation Mixing apparatus and mixing method for mixing fibrous and powder materials
US5875706A (en) * 1996-09-26 1999-03-02 Braun Aktiengesellschaft Food processing apparatus
US6112649A (en) * 1999-06-30 2000-09-05 Ulim Electronic Co., Ltd. Safety switch structure of a mixer adjustable for a juice extractor
US6481342B2 (en) * 2000-11-29 2002-11-19 Koninklijke Phillips Electronics N.V. Kitchen appliance having a housing and having an add-on unit which can be accommodated in the kitchen appliance and whose functionality is independent of the kitchen appliance
US7563017B1 (en) * 2002-09-06 2009-07-21 Bracegirdle Paul E Process for mixing congealable materials such as cement, asphalt, and glue with fibers from waste carpet
US20100139527A1 (en) * 2006-11-21 2010-06-10 Carlos Javier Fernandez-Garcia Premixing and dry fibration process
RU2826317C1 (ru) * 2024-05-14 2024-09-09 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Устройство для производства арболита

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104047B4 (de) * 2001-01-31 2005-12-01 Johann Leonhartsberger Vorrichtung zur Trockenbeleimung von Teilchen in Form von Fasern und Spänen
CN110813124A (zh) * 2019-12-14 2020-02-21 九江市美景水处理科技有限公司 一种基于自动化监控的污水处理用聚合氯化铝稀释装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948871A (en) * 1930-04-07 1934-02-27 Strong Mfg Co Scott Feed mixing machine
US2270139A (en) * 1939-11-07 1942-01-13 Petway Alphonso Paul Dispenser
US3466015A (en) * 1967-01-11 1969-09-09 Loedige Wilhelm Process of and apparatus for wetting bulk materials
US3492388A (en) * 1966-01-13 1970-01-27 Urlit Ag Method of preparing pressed plates
US3650510A (en) * 1970-04-03 1972-03-21 Denver Brick & Pipe Co Mixing and aerating apparatus for plastics

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH320445A (de) * 1951-12-26 1957-03-31 Harder Paul Verfahren und Vorrichtung zur Herstellung eines Gemisches aus Schüttmaterial und Bindemitteln

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948871A (en) * 1930-04-07 1934-02-27 Strong Mfg Co Scott Feed mixing machine
US2270139A (en) * 1939-11-07 1942-01-13 Petway Alphonso Paul Dispenser
US3492388A (en) * 1966-01-13 1970-01-27 Urlit Ag Method of preparing pressed plates
US3466015A (en) * 1967-01-11 1969-09-09 Loedige Wilhelm Process of and apparatus for wetting bulk materials
US3650510A (en) * 1970-04-03 1972-03-21 Denver Brick & Pipe Co Mixing and aerating apparatus for plastics

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165187A (en) * 1978-04-10 1979-08-21 Accuratio Systems, Inc. Apparatus for mixing and dispensing reactive fluids
WO1982001567A1 (en) * 1980-10-17 1982-05-13 Eugene D Small Cotton treating apparatus and process
US4797080A (en) * 1985-05-30 1989-01-10 Ika-Maschinenbau Janke & Kunkel Gmbh & Co. Kg Continuous kneading machine
US5403087A (en) * 1993-05-25 1995-04-04 Ask Corporation Mixing apparatus and mixing method for mixing fibrous and powder materials
US5875706A (en) * 1996-09-26 1999-03-02 Braun Aktiengesellschaft Food processing apparatus
US6112649A (en) * 1999-06-30 2000-09-05 Ulim Electronic Co., Ltd. Safety switch structure of a mixer adjustable for a juice extractor
US6481342B2 (en) * 2000-11-29 2002-11-19 Koninklijke Phillips Electronics N.V. Kitchen appliance having a housing and having an add-on unit which can be accommodated in the kitchen appliance and whose functionality is independent of the kitchen appliance
US7563017B1 (en) * 2002-09-06 2009-07-21 Bracegirdle Paul E Process for mixing congealable materials such as cement, asphalt, and glue with fibers from waste carpet
US20100139527A1 (en) * 2006-11-21 2010-06-10 Carlos Javier Fernandez-Garcia Premixing and dry fibration process
US9505656B2 (en) * 2006-11-21 2016-11-29 Carlos Javier Fernandez-Garcia Premixing and dry fibration process
RU2826317C1 (ru) * 2024-05-14 2024-09-09 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Устройство для производства арболита

Also Published As

Publication number Publication date
GB1421462A (en) 1976-01-21
DE2165878B2 (de) 1975-12-18
ATA1076472A (de) 1975-09-15
CA984377A (en) 1976-02-24
DE2165878C3 (de) 1981-07-09
AT330445B (de) 1976-06-25
DE2165878A1 (de) 1973-07-19

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