DE1043628B - Device for the continuous production of synthetic resin foam - Google Patents

Device for the continuous production of synthetic resin foam

Info

Publication number
DE1043628B
DE1043628B DEB27115A DEB0027115A DE1043628B DE 1043628 B DE1043628 B DE 1043628B DE B27115 A DEB27115 A DE B27115A DE B0027115 A DEB0027115 A DE B0027115A DE 1043628 B DE1043628 B DE 1043628B
Authority
DE
Germany
Prior art keywords
synthetic resin
foam
continuous production
resin foam
mixing chamber
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.)
Pending
Application number
DEB27115A
Other languages
German (de)
Inventor
Wilhelm Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL243340D priority Critical patent/NL243340A/xx
Priority to LU33069D priority patent/LU33069A1/xx
Application filed by Individual filed Critical Individual
Priority to DEB27115A priority patent/DE1043628B/en
Priority to FR1110789D priority patent/FR1110789A/en
Priority to GB23553/54A priority patent/GB755173A/en
Priority to US451205A priority patent/US2860856A/en
Publication of DE1043628B publication Critical patent/DE1043628B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404Mixing devices specially adapted for foamable substances
    • B29B7/7409Mixing devices specially adapted for foamable substances with supply of gas
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7604Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only fillings for cavity walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)

Description

Vorrichtung zum kontinuierlichen Herstellen von Kunstharzschaum Zur Schall- und Wärmedämmung sind Schaumisolierstoffe bekannt, die aus der Verbindung einer wäßrigen Lösung eines Harnstoffharzes und eines stark schäumenden Schaummittels bestehen. Zur Herstellung dieser Schaumisolierstoffe wird das Schaummittel in einer geeigneten Einrichtung schaumig geschlagen. Dem sich hierbei entwickelnden Schaum wird dann allmählich unter weiterem Rühren die wäßrige Lösung des Harnstoffharzes zugesetzt. Hierdurch entsteht ein Kunstharzschaumstoff, der sofort zu Platten u. dgl. verformt wird und in den Formen nach sehr kurzer Zeit verfestigt. Die Verfestigung wird dabei durch die Harnstoffharzlösung bewirkt, die damit als Härtebildner arbeitet. Die auf diese Weise gebildeten Platten u. dgl. können leicht bearbeitet und so für die verschiedensten Zwecke der Schall- und Wärmedämmung benutzt werden.Device for the continuous production of synthetic resin foam Zur Sound and thermal insulation are foam insulation materials known, which are made from the compound an aqueous solution of a urea resin and a high foaming foaming agent exist. To produce these foam insulation materials, the foam compound is in a whipped to a suitable device. The foam that develops in the process the aqueous solution of the urea resin gradually becomes with further stirring added. This creates a synthetic resin foam that can immediately be converted into plates and Like. Is deformed and solidified in the molds after a very short time. The solidification is brought about by the urea resin solution, which works with it as a hardener. The plates and the like formed in this way can be easily processed and so for the most diverse purposes of sound and heat insulation are used.

Es ist bereits bekanntgeworden, diese Schaumiso lierstoffe nicht fabrikmäßig zu Platten u. dgl. zu verarbeiten, sondern sie an Ort und Stelle zu beliebigen Körpern in Hohlräumen zu verspritzen. Die deutsche Patentschrift 734094 beschreibt ein Verfahren, nach dem sowohl das Schaummittel wie auch der Härte bildner je für sich verschäumt werden, ehe sie in die Mischdüse eintreten. Nach diesem Verfahren entsteht ein Schaum, der die Spritzvorrichtung nicht kontinuierlich, sondern diskontinuierlich in Flockenform verläßt. Es ist, wenn überhaupt, nur schwer möglich, mit den so gebildeten Flocken komplizierte Formen auszufüllen, weil dazu ein gleichmäßiger Materialzufluß und ein gleichmäßiger Druck nötig sind. It has already become known that these Schaumiso lierstoffe not to be processed in the factory into plates and the like, but instead to them on the spot to inject any body in cavities. The German patent specification 734094 describes a process according to which both the foam agent and the hardness formers are each foamed before they enter the mixing nozzle. According to this procedure a foam is created which the spray device does not continuously, but discontinuously leaves in flake form. It is difficult, if at all, to do with such educated people Filling in flakes complicated shapes because of the steady flow of material and even pressure is required.

In der erfindungsgemäßen Vorrichtung wird dagegen nur das Schaummittel in einem Schaumerzeuger vofgeschäumt, ehe es mit der Härtebildnerlösung, die nicht für sich vorgeschäumt wird, sondern ungeschäumt in die Mischkammer eintritt, vermischt wird. Es entsteht hierbei ein kontinuierlich fließender Schaum, der ohne jede Schwierigkeit alle Hohlräume der Form gleichmäßig ausfüllt und selbst durch feinste Haarrisse durchtritt. In contrast, only the foaming agent is used in the device according to the invention pre-foamed in a foam generator before the hardener solution, which is not is pre-foamed for itself, but enters the mixing chamber unfoamed, mixed will. The result is a continuously flowing foam without any difficulty Fills all cavities in the mold evenly and even through the finest hairline cracks passes through.

Die Erfindung besteht aus einer Vorrichtung, bei der eine an sich bekannte, besondere, dem Schaumerzeuger nachgeordnete Mischkammer, vorgesehen ist, in deren spitzwinklig angesetzte Zuführung für die Kunstharzlösung eine Mischdüse, insbesondere eine Spiralmischdüse, eingebaut ist. Dabei wird der Härtebildner der Schaumflüssigkeit erst dann zugeführt, nachdem die Schaumflüssigkeit den Schaumerzeuger verlassen hat, und zwar möglichst unmittelbar an der Ausspritzdüse der Vorrichtung in einer dort vorgesehenen Mischkammer. The invention consists of a device in which a per se known, special mixing chamber downstream of the foam generator is provided, in its acute-angled feed for the synthetic resin solution a mixing nozzle, in particular a spiral mixing nozzle is installed. The hardness component becomes the Foam liquid is only supplied after the foam liquid has reached the foam generator has left, as close as possible to the injection nozzle of the device in a mixing chamber provided there.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung in schematischer Darstellung. The drawing shows an exemplary embodiment of the invention in schematic form Depiction.

Die Vorrichtung wird mit Druckluft betrieben, die beispielsweise von der Druckluftflasche 1 geliefert wird. Von der Druckluftflasche 1 führt eine Leitung 2 zum Behälter 3 mit der Härtebildnerlösung und eine Leitung 4 zum Behälter 5 mit der Schaumflüssigkeit. The device is operated with compressed air, for example is supplied by the compressed air cylinder 1. From the compressed air cylinder 1 leads a Line 2 to the container 3 with the hardener solution and a line 4 to the container 5 with the foam liquid.

Der Behälter 5 ist über eine Leitung 6 mit dem Schaumerzeuger 7 verbunden, in dem in bekannter Weise durch Einleiten von Druckluft aus der Leitung 8 die Schaumflüssigkeit stark mit Luft angereichert wird.The container 5 is connected to the foam generator 7 via a line 6, in which in a known manner by introducing compressed air from line 8, the foam liquid is heavily enriched with air.

Das auf diese Weise vorbehandelte Schaummittel wird der Abspritzdüse 9 vorgeschalteten Mischkammer 10 zugeführt. Spitzwinklig hierzu wird der Mischkammer 10 durch die Leitung 11 die Härtebildnerlösung aus dem Behälter 3 zugeleitet. Die Zuleitung erfolgt dabei mittels einer mit 12 angedeuteten Spiralmischdüse. Das in der Mischkammer 10 erzeugte innige Gemisch kann unmittelbar durch die Abspritzdüse 9 oder gegebenenfalls mittels einer an dieser angeschlossenen Spritzlanze od. dgl. abgespritzt werden. The foam concentrate pretreated in this way becomes the spray nozzle 9 upstream mixing chamber 10 supplied. The mixing chamber is at an acute angle to this 10, the hardener solution from the container 3 is fed through the line 11. the The supply line takes place by means of a spiral mixing nozzle indicated by 12. This in The intimate mixture produced in the mixing chamber 10 can be passed directly through the spray nozzle 9 or, if necessary, by means of a spray lance or the like connected to this. be hosed.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum kontinuierlichen Herstellen von Kunstharzschaum mit einem Schaumerzeuger für eine wäßrige, mit einem Härtungsmittel versetzte Lösung eines Schaummittels und einer Zuführung für eine Kunstharzlösung, gekennzeichnet durch eine an sich bekannte, besondere, dem Schaumerzeuger nachgeordnete Mischkammer,in deren spitzwinklig angesetzte Zuführung für die Kunstharzlösung eine Mischdüse, insbesondere eine Spiralmischdüse, eingebaut ist. PATENT CLAIM: Device for the continuous production of synthetic resin foam with a foam generator for an aqueous solution mixed with a hardener a foaming agent and a feed for a synthetic resin solution by a known, special mixing chamber downstream of the foam generator, in whose acute-angled feed for the synthetic resin solution is a mixing nozzle, in particular a spiral mixing nozzle is installed. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 901 471, 883 343, 832 493, 813 598, 800 704, 734 094. Considered publications: German Patent Specifications No. 901 471, 883 343, 832 493, 813 598, 800 704, 734 094.
DEB27115A 1953-08-20 1953-08-20 Device for the continuous production of synthetic resin foam Pending DE1043628B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL243340D NL243340A (en) 1953-08-20
LU33069D LU33069A1 (en) 1953-08-20
DEB27115A DE1043628B (en) 1953-08-20 1953-08-20 Device for the continuous production of synthetic resin foam
FR1110789D FR1110789A (en) 1953-08-20 1954-07-15 Device for spraying foamy substances
GB23553/54A GB755173A (en) 1953-08-20 1954-08-13 Device for spraying foamed materials
US451205A US2860856A (en) 1953-08-20 1954-08-20 Installation for spraying foam materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE755173X 1953-08-20
DEB27115A DE1043628B (en) 1953-08-20 1953-08-20 Device for the continuous production of synthetic resin foam

Publications (1)

Publication Number Publication Date
DE1043628B true DE1043628B (en) 1958-11-13

Family

ID=25947692

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB27115A Pending DE1043628B (en) 1953-08-20 1953-08-20 Device for the continuous production of synthetic resin foam

Country Status (3)

Country Link
DE (1) DE1043628B (en)
LU (1) LU33069A1 (en)
NL (1) NL243340A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE734094C (en) * 1940-08-01 1943-04-09 Ig Farbenindustrie Ag Process for the production of insulating compounds
DE800704C (en) * 1948-10-02 1950-11-30 Basf Ag Process for the continuous production of foam masses from synthetic resins u. Like. For insulation purposes
DE813598C (en) * 1950-03-04 1951-09-13 Basf Ag Process for the continuous production of foam masses from resins, glues and the like. like
DE832493C (en) * 1949-06-09 1952-02-25 Gewerkschaft Philippine Method and device for filling molds, cavities or the like with pore-forming organic plastics
DE883343C (en) * 1951-08-14 1953-07-16 Metallgesellschaft Ag Process for solidifying foamy masses of organic or inorganic substances produced by the blowing process
DE901471C (en) * 1951-12-24 1954-01-11 Bayer Ag Process for the production of porous or homogeneous plastic semi-finished products or finished articles based on polyurethane and device for carrying out the process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE734094C (en) * 1940-08-01 1943-04-09 Ig Farbenindustrie Ag Process for the production of insulating compounds
DE800704C (en) * 1948-10-02 1950-11-30 Basf Ag Process for the continuous production of foam masses from synthetic resins u. Like. For insulation purposes
DE832493C (en) * 1949-06-09 1952-02-25 Gewerkschaft Philippine Method and device for filling molds, cavities or the like with pore-forming organic plastics
DE813598C (en) * 1950-03-04 1951-09-13 Basf Ag Process for the continuous production of foam masses from resins, glues and the like. like
DE883343C (en) * 1951-08-14 1953-07-16 Metallgesellschaft Ag Process for solidifying foamy masses of organic or inorganic substances produced by the blowing process
DE901471C (en) * 1951-12-24 1954-01-11 Bayer Ag Process for the production of porous or homogeneous plastic semi-finished products or finished articles based on polyurethane and device for carrying out the process

Also Published As

Publication number Publication date
NL243340A (en)
LU33069A1 (en)

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