DE1646890A1 - Process for the production of fire protection insulation from mineral wool and device for using this process - Google Patents

Description

DR. BERG DiPL.-ING. STAPF

PATENTANWÄLTE β MÜNCHEN 2. HILBLESTRASSE 2O

Dr. Berg Dipl.-Ing. Stapf, 8 MOnttwn 2, Hilfalarirofl · 20

UitKfZtidran

Vl / Zr 14 720 ^ _n , _l5 , _May

P 1646 890.9
New documents

Lawyer files Ir. 14 720

Przedsiebiorstwo Robot Termoizolacyjnych

"Termoizolacja" Zabrze - Poland

Process for the production of fire protection insulation from mineral wool and device for its application

Procedure

Inventors: Benon Szenkelbach, Antoni Turek, Pawe ^ Macura,

PawejJi Rakocz, Oskar Weinberger and Andrzej D ^ ugosz

(Art. 7 S 1 A ^ s. ?. Ur 1 S.tz 3 of the Amenduna «BM. V. 4. S-fe

109833/0404

(Mil) * S 16 20 BI Tatogrammai PATE ihank MOndian 453 100 Pothchedci Mflnch.n 653 43

The invention relates to a method for producing fire protection insulation from mineral wool by a spray-on method. This method makes it possible to fire-resistant coatings with good adhesion to the substrate and sufficient mechanical strength to manufacture, which protect the substrate against adverse effects of fire and temperature of more than ⁰ IuOO C.

Various methods of protecting building structures against fire and high temperatures are known.

Some of them are based on the application of coatings made of asbestos-cement mixes, concrete layers, or Ceramic plates on construction elements.

However, the methods mentioned have the disadvantage that this type of insulation is expensive, which in particular "applies to fire-resistant insulation compounds that contain asbestos, which is often imported from abroad must become. In addition, the working conditions are involved when applying insulation containing asbestos occurring heavy dust, difficult.

The execution of casings from concrete layers or ceramic plates places a great strain on the structure

109833/0404

result, what the need to strengthen the structure and thus an increase in the amount of steel for the given building object brings with it.

In addition, the thermal strength of these envelopes far less than an insulation according to the invention.

Another known method is painting the Surface of the construction elements with fire protection paint. The disadvantage of this procedure is that it is Isolation of the components from direct fire exposure appreciates only for a short time.

The disadvantages listed above are avoided by the invention Isolation of components avoided because the insulation proposed herein is cheap and light is as well as without raw materials imported from abroad can be executed.

The concept of the present invention is to use a mixture of carefully crushed and loosened mineral wool with cement in a ratio from mineral wool to cement from 0.5: ■ 1 to 2: 1, in dry state, with a ratio of 1: 1 am is cheapest, as well as on the application of this insulation on the surface of the objects to be insulated with

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109833/0404

BATH ORIGINAL

With the help of a device specially developed for this purpose, which causes the insulation particles to fall into place when sprayed on a whirling motion are displaced, whereby they are distributed loosely and evenly on the isolated surface and there form a mass of spongy consistency. After applying the mass in the desired strength, the The insulation surface is balanced and lightly tapped with a rubbing board or trowel.

The invention is described in more detail below with reference to the drawing, in which

Fig. 1 shows the unit for crushing and supplying the insulation mass,

2 shows the schematic, pressurized water supply line to the spray nozzles;

3 shows the flow diagram of the comminuted mixture and the atomized water;

4 shows the front view of the syringe end and the hinge with the water jets and

Fig. 5 shows the side view of the end of the syringe with the flexible water hose.

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The aggregate I of the pig. 1 is used for preparation and Feeding the mineral wool. This unit consists of the following parts: a filling funnel 8 for dosing the V / olle, spiked wheels 9 for crushing and for evenly advancing the mixture, a fan for loosening and transporting the mixture under pressure to the end of the injection 1, as well as an electric motor 11 for the drive the sprockets and the fan. All parts of the unit are in a common housing

The aggregate II of the pig. 2 consists of a compressor (not shown in the drawing), a line 12 for the compressed air, a tightly closed water tank 13 and a line 15 for pumping the water under pressure to hang 5 «The water tank is by means of one line 12 is connected to the compressor and another line 15 is connected to the spray end 1.

The aggregate III of the Pig. 3 consists of the spray end 1, to which by means of the line 14 the dry mixture and by means of line 15 the water is supplied.

According to Pig. 5, the spray device 1 is composed of two main components; the nozzle body 2 in Shape of a metal tube in its front outer part

109833/0404

is provided with a thread and the ring 3 which is connected by means of its thread 16 to the nozzle body is «The nozzle body is the spray nozzle for the dry mixture, which is pressurized with the hose 14 is brought up and which is sprayed in the form of a jet 7 onto the element to be isolated.

As can be seen from Fig. 4 and 5, water nozzles 6 are attached to the circumference of the ring at different intervals, their Axes are directed at an acute angle to the axis of the nozzle body 2 and at a point on the axis of the Cut said nozzle body 2.

The water is under pressure with a line 15 and with Conveyed to the ring 3 with the aid of a nozzle 4.

One rotation of the ring 3 on the ver-P with one turn See nozzle body 2 causes a change in the distance of the cutting point of the axes of the water nozzles 6 in relation to the mouth of the nozzle body 2. This fact enables the use of the end piece 1 for insulation those parts, in which with regard to the ^ u insulating Construction requires a change in the distance between the end piece and the sprayed part.

The application of the fire protection insulation according to the invention

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takes place in the following way: From the nozzle opening 2 of the End piece 1 flows a jet 7 of the insulation mixture, which is directed towards the surface to be insulated, the mixture being moistened by water mist during its flight which is sprayed through a nozzle attached to the ring 3.

The insulation thickness depends on the desired level of fire protection away.

Since then only the production of fire protection insulation from LU / eralv, olle and cement as well as the device used for this purpose ran due to the good adhesion of the Isosatior. on St- ° .hl and 3eton there was very little splashing apart. ? Attachment, low cost, their small weight lui, aer comfortable H-ndhabung the end piece for fire protection: y: .erun, = - all components that are used by Stahlur .: StahlbeTOükoristruktionen.

Claims ^{: -8-}

109833/0404 ·: <::

BAt) ORIGINAL

Claims (5)

Patent claims: 1. Process for the production of fire protection insulation from mineral wool and cement using the spray-on method, characterized in that a dry mixture prepared from mineral wool and cement by means of a. Spray device with a corresponding end piece (l) is formed into a jet (7) which is moistened with water mist the mixture forming a stream of wet mass that effectively adheres to the surface which it is applied and, after a corresponding solidification time, forms a fire protection insulation. 2. The method according to claim 1, characterized in that the composition of the mixture of mineral wool and Cement depends on the required degree of fire protection and the material used within the limits of a weight ratio from 0.5 si to 2: 1, preferably 1: 1. 3. The method according to claims 1 and 2, characterized in that that after reaching the prescribed thickness of the insulation layer, its surface is leveled and pounded in place until a hard shell is obtained, which forms a protective jacket for the insulation and before Protects the penetration of heat into their interior. .4? κ - 9 - 1 09833/0404 (Tj α. 4. Apparatus for applying the method according to claim 1, consisting of a syringe end extending from the body composed in the form of a metal tube and a ring, which is provided with water spray nozzles, their axes Form acute angles with the axis of said body, characterized in that the ring (3) with the body (2) is connected by a screw connection (16), whereby the ring is axially relative to said Body is adjustable, which changes the position of the intersection of the water nozzle axes to the axis of the nozzle body allows. 5. Apparatus according to claim 4, characterized in that the particles of the mixture and the water after leaving of the nozzles due to their special design, into a Whirling motion is displaced, resulting in an even application of the insulation on the surface of the object causes. 109833 / CUCU