HUT58574A - Method and apparatus for spreading protective coating against heat or sound or noise advantageously coating mixture protecting the walls of metal-industrial tanks - Google Patents

Abstract

The machine comprises means (1) for receiving the mixture of products constituting the coating, means (6) for directing the mixture towards the lower part of the machine, means forming a handling chamber (8) for distributing the mixture towards a transport line (13) in which said mixture is pneumatically driven to a spray nozzle (14) into which are injected pulverized water, or air and pulverized water for making the mixture uniform so that it can be sprayed and take hold. It also comprises at least one water, or air plus water pulverizing apparatus for pre-humidifying the mixture, whereby the quantity of water injected at this stage is adjusted so that the mixture retains the features of an essentially dry product.

Description

BUDAPEST INTERNATIONAL LAWY AND PATENT OFFICE

1061 BUDAPEST, SONG THEATER 10 PHONE: 15B-3733

58 574

PUBLICATION LITERATURE

Τ2 / Ό 4/48

Process and equipment for applying heat or sound or noise protection coatings, preferably coatings for protecting metal vessel walls

DAUSSAN et COMPAGNIE, WOIPPY, FRANCE

Inventors: DAUSSAN Jean, METZ, FRANCE

DAUSSAN Gérard, LONGEVILLE-LES-METZ, FRANCE DAUSSAN André, LONGEVILLE-LES-METZ, FRANCE

Date of filing: March 21, 1990

Priority: 24.03.1989 (89/03899) FRANCE

International Publication No. WO 90/11133 / 90.10.04)

The present invention relates to an apparatus for receiving, in a large number of subdivisions, powder coatings and / or fibrous materials which can be wetted with water, namely a fire protection coating, or a heat or sound or noise barrier coating or liquid metal. • suitable for spraying insulating and / or protective coating on walls of volatile metallic tanks.

The invention also encompasses a process for spray coating.

The prior art EP-A-0286513 is known. A patent for a device and method for spraying a coating consisting of at least two layers wherein an aqueous, pasty and hardening product containing the total amount of water needed to spray and cure the coating is prepared for each layer and pumped to a nozzle. Such a device and such a method are not suitable for spraying material with a high percentage of powder and / or broad materials.

It is known that these materials can be transported by air blowing only in the dry state and that powder and / or wide materials are present in the blown air in a floating state. The process thus consists of transferring the materials in a dry state and injecting all the necessary water at the end of the nozzle.

Many devices of the aforementioned type are known, generally comprising means for receiving a mixture of coating materials, means for conveying the mixture to the apparatus and its lower part, rotating means forming sifting and distributing parts, and for distributing the mixture by gravity in a blow chamber blowing means for conveying the mixture by blowing air from the blowing chamber to inject said air or air and powdered water in said conveying conduit, thereby allowing it to be dispersed and bound.

These devices exhibit a number of difficulties associated with powdered materials, whether they are refractory particles, which in themselves exhibit a certain moisture-absorbing effect, such as fully burnt magnesium particles, or binder particles, which can be hydraulically bonded binders, e.g. cement, or a chemically bonded binder such as silicate. The prior art process teaches one skilled in the art to begin wetting the mixture only at the end of the nozzle, fearing that the binder will solidify, namely the setting of cement and / or said refractory materials, or the clogging of fibers that will bring the machine hardening of the binder and, in particular, of the cement.

Due to inadequate mixing of dispersed materials with water, spraying of this type of coating, accompanied by very strong powder development, will result in failure to take corrective action, which, regardless of discomfort and harm to personnel, may result in material losses and discernible differences in application and intended application. coating composition.

One of the possible corrective measures is to significantly increase the amount of water added before spraying. Such a measure effectively reduces dust formation, but the excessively wetted mixture is very difficult and very liquid and tends to peel off or peel off the wall to which it is applied, which greatly limits the thickness that can be applied in one pass. On the other hand, the very high amount of water used during evaporation gives a coating that has too high a porosity and causes the formation of cracks.

In view of these drawbacks, it is generally preferred to use a mixture which, for example, contains a small amount of dusting oil at the time of preparation of the mixture. The amount of oil added depends on the regulations in place, especially for fire protection coatings or protective coatings on metal tank walls, and generally exceeds a few percent. However, at very high temperatures, this oil, when in contact with the liquid metal or in the event of fire, is sufficient and contaminates the steel or the environment, which greatly reduces the protective properties of the coating in question.

It is an object of the present invention to provide an apparatus of the aforementioned type which remedies and ameliorates the disadvantages of the known apparatuses while allowing spray application of a coating moistened with water containing a significant percentage of dust powder and / or fibrous material and free of coating. partially contains dusting oil without excessive dust formation through adequate water.

It is an object of the present invention to further develop an apparatus of the type mentioned above by incorporating means for pre-wetting the mixture.

• ·

- 5 During the discovery, we have realized that it is possible to pre-moisten the mixture provided that it is prepared to preserve the characteristics of the dry or substantially dry product, i.e. it is particularly important that dust powder and / or fibrous materials remain suspended in the blown air in such a way as to impede the homogeneity and uniformity of the mixture.

Under these conditions and despite the concerns of one of ordinary skill in the art, there is no risk of hydraulic or chemical bonding of the components of the mixture and / or of entrapment or blockage.

Water injection, even in small amounts, allows for a significant reduction in powder deposition and, therefore, a spray coating which is oil-free or contains only a small amount of oil.

According to an object of the present invention, there is provided an apparatus for dispensing a heat or sound or noise protection coating, preferably a coating portion of a metallic container wall, which comprises a feed and outflow processor receiving the mixture, a conveyor and a rotatable sifting and sifting unit. means for distributing and delivering blowing elements to and from the blowing chamber, and a conveying pipeline and nozzle for removing the mixture, the end of the nozzle being adapted to inject atomised water or atomised air and water, and between water or air and water atomising elements.

According to a preferred embodiment of the invention, the receiving part comprises a conveyor screw and a pre-wetting syringe and nozzle, which is designed as an endless screw for transporting the mixture.

According to a further preferred embodiment of the invention, the receiving portion is provided with water or air and water atomising syringes and / or suitable for transporting to the lower half of the receiving portion and / or around one or more water or air and water atomisers .

Alternatively, the conveying means to the lower half of the receiving portion may have a carding comb or a shaking device formed as or including a rotating finger.

According to a preferred embodiment of the invention, the blade distribution means are designed as a blade or cylindrical or honeycomb wheel distributor.

Typically, a spray tray is provided at the end of the nozzle to contain the mixture and to limit the amount of dust released during the spraying.

According to a preferred embodiment of the apparatus, at least one of the edges of the spreading tray is formed with a flap.

A design having at least one of the edges of the spreader tray having an axis parallel to the edge of the tray and having a length that is freely rotatable about its axis is well-proven. It is desirable to configure the apparatus so as to be perpendicular to the plane of the tray. sliding roller • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · total · mot

- It is pushed back by 7 springs to its position furthest from the tray.

Particularly preferred is the embodiment wherein the tray has at least one flap formed at an edge adjacent to the cylinder-containing edge.

According to a further object of the present invention, there is provided a process for applying a heat or sound or noise protection coating, preferably to a metallic container wall, from a feed to an outlet in a process receiving portion of the apparatus formed as a filling hopper. and conveying means comprising rotating means comprising a sieve and a distribution unit, blowing means for distributing and conveying the mixture into a blowing chamber, and then a conveying conduit and a nozzle for injecting water or a mixture of atomised air and water at the end of the nozzle. for mixing the mixture to be sprayed in the filling hopper of the receiving part with chopping blades and transferring it to the blades of the screw by means of an endless screw, with the comb fingers of which the fibers of the mixture are separated and moved downwards forcing while transferring the mixture to a blower chamber via a blade distributor and transferring it to a vent pipe formed by a fan, while dispensing a mixture of dust material and / moving a10 syringes and / or nozzles in the conveying pipeline and moving the water content of the mixture - in its apparatus ···························································· ·· «·· · · · ············

- at the same time as it moves - increasing the spray product to a weight ratio of 1-40, while maintaining its dry product character throughout the flow to the end of the nozzle, spray nozzle to the end of the nozzle, and reinforcing the nozzle to reduce splash or dust spreading the mixture with a roller or roller formed on the surface of the spreading tray and smoothing the resulting coating.

Advantageously, the process comprises attaching at least two flaps or rollers to adjacent sides of the spray pan, thereby sealing the space between the spray pan and the surface to be coated, preferably made of flexible material perpendicular to the surface to be coated, where the height of the flaps is of equal or greater size.

The invention will be described in more detail with reference to the drawings, which are provided by way of example only and are not limiting.

Figure 1 is a longitudinal sectional view showing the spray equipment,

- Figure 2 is a sectional view taken along lines II-II of Figure 1, also with an open view of the apparatus lid,

Figure 3 shows a top plan view of the equipment spray pan in the coating application position or in a continuous flow distributor, partially planar,

Figure 4 is a top plan view of the spreader tray of Figure 3

Figure 5 is a cross-sectional view taken along the line V-V of Figure 3 of a sputtering tray operating in the interior of a continuous flow distributor which is depicted in its first position on the bottom at • · and in its second position on one sidewall of the distributor; presented, a

Figure 6 is an axial sectional view of the air vent opening of the spreading tray, along line VI - VI of Figure 4;

Figure -7 shows another embodiment of the spreader tray according to Figure 4, a

Figure 8 illustrates the spreading tray in a manner similar to Figure 3, a

Figure 9 shows the layout of the spreader tray in accordance with Figure 8.

In the embodiment shown in Figures 1 and 2, the apparatus is adapted to transfer coatings containing a significant percentage of dust and / or fibrous materials and intended to be sprayed with water after wetting, namely fire protection or heat or sound or noise protection coatings or liquid coatings. for protective coatings on walls of metal containers for receiving metal.

The apparatus is suitable for spraying coatings consisting of a hydraulic binder, such as cement, or refractory particles, including a silica and / or resin, and / or having a hydraulic effect and binder, and mineral and / or organic fibers which are suitable for the function of the coating. Its composition may vary from 0.5¾ binder and 99.5¾ fibrous material to 0¾ fibrous material and 100¾ binder material and other powder and granular materials.

The apparatus is particularly suitable for spraying coatings consisting of binder and / or cement, fibers and powder or particulate materials, such as expanded or non-expanded coatings. ··· «· · ··· ··

10 perlite or vermiculite in expanded state, the fibers in the insulating coatings being, for example, wool fibers.

It is also capable of spraying all kinds of mixtures consisting of powdery and / or fibrous materials, particulate materials and a mineral and / or organic binder, in particular refractory coatings containing one or more layers of refractory particles and possibly a binder and fibers, and metal refractory coatings such as the applicant's previous patents FR-A-2,393,637 and FR-A-2,458,519 or FR-A-2,583,273.

In each of these examples, the amount of water can be controlled to provide the binding water for the materials and, in some cases, the required amount of water for crystallization of the binders and hydraulically and / or chemically bound materials.

In the embodiment shown in Figures 1 and 2, the apparatus comprises a substantially rectangular horizontal filling hopper 1, in which are mounted two parallel shredders 2 which, for example, act upon the motor not shown. they rotate in opposite directions. Each of the chippers 2 comprises a plurality of blades 3 distributed along its axis and, for example, each has a different direction on this axis.

The filling hopper 1, the width of which is narrowing downwards, is fitted in its lower part and below the crushers 2 with an endless screw 4, which is driven by the same motor as the crushers 2.

4 endless screws to move materials to one end • ·

- Slide 11 up to the plate 6 which is mounted directly on the shaft 3 of the screw 4 in the example shown. The plate 6 carries the combs and / or fingers two diametrically opposed to each other, which carry downward movement of the materials.

Underneath the plate 6 is mounted a watertight shaft-shaped blade distributor 8, comprising, for example, eight to twelve blades 9, spaced about its axis, and which are flush with the inner wall of the distributor housing 10. The distributor 8 can also be driven by the same motor as the apertures 2 and the screw 4.

Below the blade distributor 8 is located a blower chamber 11 into which blowing air generated by a fan 12 driven by a motor (not shown) is introduced.

A conveying pipeline, for example a flexible pipeline, starts from the blowing chamber 11 and ends in a spray pipe 14 of a known type.

Further, the dispenser 14 comprises a tubular network 15, rigid in the example shown, fitted with syringes 16 of known type, located at various locations in the hopper 1 above the plate 6 and in the distributor 8. This tubing 15 and nebulizers 16 allow the injection of a mixture of water, air, and water to preheat the mixture.

Also, the flexible piping 15a escapes the mixing tubing 13 and supplies with water one or more atomizing nozzles 17 of known type, which are substantially disposed in the axis of the tubing 13. The nozzles 17 may be of the cut-off type .

· «· • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · |

The remainder of the water needed to ensure good spraying and setting conditions of the coating composition is injected by spraying nozzles 18 of known type which are located at the end of spraying tube 14. Such a nozzle 18 is known to comprise radially openings in the periphery of the pipeline, orifices directed along certain components of the cone that hold together the outlet end of the nozzle, or a simple syringe or nebulizer in the axis of the tube whose walls are cut-off.

The upper part of the filling hopper 1 may be closed by an anhydrous lid 19 which rotates about the axis 20. When the lid 19 is closed, the filling hopper 1 is locked to a known device (not shown) which allows the device to operate under pressure.

In the embodiments shown in Figures 3 to 9, the word tray 21 is attached to the spray nozzle 18 of the spray tube 14.

Figures 3 and 5 show the spreader blade 21 of the apparatus according to the invention in operation on the sidewalls 22 and 23 of the continuous flow distributor 25 and at its bottom 24, where the spreader tray 21 creates a abrasion coating 27 over this permanent coating 26 .

In the embodiments of Figures 3 to 6, the spreader tray 21 has a trapezoidal shape, particularly adapted to form a wear coating 27 on the curved side walls 22 and 23 of the distributor 23. The spreader tray 21 is formed on two adjacent sides with a flexible flap 28 which retains reflux and dust. Flexible flaps 28 preferably made of rubber · «·

15 or made of plastic, in some known manner, fixed to the tray 21 and projecting perpendicular thereto in the direction of the surface to be coated.

Of course, as shown in FIG. 5, the flaps 28 have a height substantially equal to or greater than the thickness of the coating 26 to be applied.

The spray nozzle 16 passes substantially through the center of the spreader tray 21. It may also be penetrated by one or more vents 29, in the example shown there are two, including, for example, a valve 50 clamped to its seat by the spring 51 in the direction of the surface to be covered (see Figure 6). evacuation.

Fig. 5 shows, on the one hand, the spreader tray 21 at rest, on the bottom 27 of the continuous flow distributor 25, the flap 28 being raised and, on the other hand, the spreader tray 21 on the wall 22 of this dispenser; dispersed materials. in the intersection plane, they are retained between the wall 22, the spreader tray 21, and the coating 27 and the flap 28 already in place.

In the embodiment of Fig. 7 ·. The spreader tray 21 has a rectangular shape and carries flaps 28 on its four sides.

In the embodiment shown in Figures 8 and 9, the spreader tray 21 has a rectangular shape. On its two opposite sides it is provided with cylinders 52 which rotate freely about their own axis which are parallel to said sides.

- ΙΖι. In the embodiment of Figure 8, the shafts of the two rollers 32a, 32b are fixed but spaced apart by the spreader tray 21a. from its surface to the wall 33 to be coated. The roller 32a, referred to as the first roller, is suitable for rolling on the wall 33 and the roller 21a. keeps the surface at a constant distance from it and is essentially equal to the thickness of the casing or slightly greater than the thickness applied to the wall. The function of the rear roller 32b is a. spreading and leveling of scattered materials and rolling them over the 27 coatings already in place. In the example shown,. beyond the rear roller 32b, the flap 28 has a. Mounted on 21 trays.

In the embodiment of Figure 9, the shafts of the two rollers 32c a.

moving perpendicular to its tray. Each end of these shafts is supported by a bar 34 perpendicular to the tray 21, which can slide longitudinally between the two legs of a U-shaped support 35. A stop 36 attached to the bar 34 restricts the movement of the bar 34 in all directions. Spring 37 pushes rod 34 and roll 32c toward wall 33 to be coated.

As in the embodiment of Fig. 8, the roll 32c shown in Fig. 9 on the left is suitable for rolling on the applied coating 27 to extend and align it. A flap 28 is provided behind this second roll 32c, which roll is a. seeing the function of the rear roller.

Describing the mode of operation of the spraying device according to the invention.

; Except for initial and final periods of spraying, which may require customary and known special precautions, depending on the nature of the dispersed materials,

- 15 of the machines in Figures 1 and 2 have a continuous mode of operation as follows:

The mixture to be sprayed in the filling hopper 1 is agitated by the blades 5 of the shredder 2, which is carried by the screw t to the plate 6, whose fingers 7 roughly separate the fibers and force the mixture downwardly. Below the blade 6, the blade distributor 8 is the blower 11. enters a substantially constant amount of mixture into the chamber, which is carried by the blowing air from the blower 12 to the conveying pipe 15 by flowing movement.

The powder mixture and / or the fibrous materials forming the mixture to be sprayed move one or more variable number of syringes 16 at different locations in the hopper 1 and / or positioned above the blade 6 and / or the blade distributor 8 and / or the spray nozzles 17 adjusting the flow of water in the conveying pipe 15 and the water or air and water in each of the syringes 16 or nozzles 17 so that the water content of the mixture increases in a predetermined manner as it advances inside the machine and in the conveying pipe system; so the machine and the. a predetermined moisture content of the mixture is achieved at a suitable point in the piping system, depending on the nature, diameter and amount of the fibrous materials, and the nature, particle size and structure of the powdered materials while maintaining the characteristics of a substantially dry product; and / or fibrous materials are suspended and remain in the heated air and do not precipitate, which • · · ♦

THE

- 16 would undermine the homogeneous nature and uniformity of the mixture.

In this way, a quantity of water of about 1% to about 40% by weight of the mixture to be sprayed can be gradually injected, the mixture retaining the character of a substantially dry product and thus naturally dispersed in the various components of the machine. progressing continuously to the end of the Iá spout,

The apparatus of Figures 1 and 2o, with its 6 blades and blade distributor, emits very high percentages of fibrous materials: these percentages can significantly exceed 50% by weight and reach the above 99.5% cap .

Experience has shown that, without this formation of dust, a mixture containing a significant proportion of dust-forming and / or fibrous materials is dispersed without the addition of an antifreezing oil which tends to burn and contaminate, nor excess water, which causes excessive porosity and fluidity of the dispersed mixture. The amount of water used is strictly equal to the amount of water required to bind the mixture and possibly to the crystallization water of the hydraulically and / or chemically bonded material of the mixture.

If the. A spray tray 21 attached to the end of the spray nozzle is used in addition to the spray nozzle 18, and it is stated that there is a significant restriction on the spatter of materials and possibly dust emissions. In addition, a smear effect is observed on the surface of the spreading tray 21 and possibly by the flap 28 or the roller 52; they spread it out and even it out

- 17 materials after application. It will be appreciated that at least two rollers or one roller are preferably used to be mounted on two adjacent sides of the spreader tray 21 so as to substantially seal the spreader tray 21 and the spreader tray. the space between the surface to be coated and already bounded on two sides by a layer already formed and a layer being applied »

It will be appreciated that the spraying machine of the present invention may be used and that appropriate procedures may be utilized to apply coatings containing a significant percentage of dust-forming and / or fibrous materials such as those mentioned above.

The high water uptake of fibrous materials, in particular wool mineral or slag wool, paper and certain particulate or powdery materials such as vermiculite or perlite, explains in part that it can be wetted. a mixture of fibers and binder and / or cement (and possibly other materials) without fear of binding of the binder or cement a. machine »

Of course the. The invention is not limited to the embodiments described above, and many modifications thereof can be made without departing from the scope of the invention.

Thus, the spreader may have a cup hopper and a non-rectangular fill hopper with a scraper arm provided with fingers that move along a conical path along the inside wall of the hopper hopper provided with a vertical axis comb forming at the bottom, or other

- 18 matching mixers »

Similarly, whatever the shape of the filling hopper, the machine can be provided with a cylindrical distributor, also known as: a rotary distributor, instead of a paddle distributor, known as: a vertical axis rotor, a. located in the lower part of the filling hopper, comprising a plurality of rotating chambers which, when the rotor is rotated, pass successively below the inlet, through which the mixture to be sprayed passes into the rotating chamber, then over the exposed outlet to the blowing chamber; is transmitted to the transport channel.

Similarly, this or that assembly, which may or may not be required, may be added or omitted, depending on the composition of the mixture or mixtures to be sprayed.

Thus, the spacing or machine type can be selected depending on the nature of the mixture to be sprayed. For example, it is known that cylindrical or rotary distributors allow the mixtures to be sprayed at high speeds and high pressures.

This is the case when applying fire protection coatings: usually a grid is placed under the surfaces to be protected, keeping them at a certain distance from these surfaces and securing them, for example. pig tail or bishop with stick-shaped staples attached to them: you like to have the fibers in your head with high pressure and high speed spraying. , to sprinkle ke • · · • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·ics Sup v international street city street

- 19 beams pass through parts of the grid which are eg. centimeters in size »

This is also the case for certain coatings for which a certain tightness is sought, particularly for certain protective coatings on the walls of a metal container for receiving liquid metal, to increase the resistance of these coatings to erosion by liquid metal or slag or certain structural elements exposed to wind erosion. bevonatainál.

In contrast, cylindrical or rotary manifolds are not suitable for a. for spraying mixtures containing very high amounts of fiber. Of course, these fiber amounts are highly dependent on. the nature and size of the fibers, but in weight only slightly over 50% »

It is clear that the number and type of syringes and nozzles may be modified; , they can be individually or non-individually controlled.

It is possible to install a pre-humidifier in front of the sprayer, which includes means for receiving the mixture to be sprayed, means for delivering this mixture, such as one or more endless screws or blades, and one or more water or air and water nebulizers. the sprayer can operate either directly by pouring the pre-moistened mixture into the hopper hopper of the machine, or indirectly by interrupting and restarting the filling of the pre-moistened mixture, in which case the pre-moistener is able to operate to feed multiple sprayers.

Preferably, the spreader tray is provided with a plurality of rollers and / or flaps, in any shape, handled by a knife 1b by a worker, or by a robot equipped with means for allowing said tray to be held at a constant distance from the wall to be coated. The flaps may also consist of a flexible or non-flexible metal plate.

Spray tray may not contain vent holes or may contain vent holes other than those described

If a sputtering tray is not used, the end of the spout is provided with a flexible spigot, for example a few tens of centimeters in length, preferably thirty centimeters, to which rotation and / or pendulum movement is carried out by proper shaking of the pipe »

Claims (13)

PATENT CLAIMS 1 «Apparatus for dispensing heat or sound or noise protection coatings preferably of a coating mixture protecting the walls of a metal container having an inlet and outlet '; comprising a conveying means comprising a conveyor and rotatable means including a screen and a distribution unit, blowing elements for dispensing and conveying the mixture into a blowing chamber, and a conveying tubing and nozzle for removing the mixture, the end of the nozzle being atomised by water or atomiser and is adapted to inject water, characterized in that additional water or air and water atomising elements (16, 17) are arranged between the receiving portion (1) and the nozzle (14) to preheat the mixture. Device according to claim Ι », characterized in that the receiving part (1) has a conveyor screw (4) and a pre-wetting syringe (16) and a nozzle (17) designed as an endless screw for transporting the mixture» Device according to any one of claims 1 = and 2 », characterized in that water or air and water atomising syringes (16) are distributed in the receiving part (1) and / or are suitable for transport to the lower half of the receiving part (1) and / or the distributor around these intervals and. one or more water or air and water atomisers (17) in pipeline (13) » Device according to one of Claims 1 to 3, characterized in that the conveying means (15) of the conveying means (15) in the lower half of the receiving part (1) has a carding comb (6) or a rotating finger. ···••• «« · »« · · · *** «· · ·« ···· ♦ · * ··· «· - 22 shaking devices designed or included as sulfur » Apparatus according to any one of claims 1 to 24, characterized in that it is a blade for blade distribution means (8). (9) are formed as either cylindrical or honeycomb knife dividers. Apparatus according to any one of claims 1-5 ·, characterized in that the end of the nozzle (lh) is provided with a dispensing tray (21) for holding the mixture in order to limit the amount of dust released during the spraying process » 7 »Arrangement according to one of Claims 1 to 6, characterized in that at least one of the edges of the suction tray (21) is formed with a flap (28)» Apparatus according to any one of claims 1 to 7, characterized in that at least one of the edges of the suction tray (21) has a roller (32, 32a, 32b) which has an axis parallel to the edge and of the same length and freely rotating about its axis. , 32c) is designed » 9 «Figures 1-8. Apparatus according to any one of claims 1 to 3, characterized in that it is pressed against the plane (21) of the tray (21) perpendicularly sliding along its axis by a spring (37) to the position furthest from the tray (21). Apparatus according to any one of claims 8 and 9, characterized in that at least one of the drives (28) formed on at least one edge of the tray (21) adjacent to the edge containing the cylinder (32b, 32c) »♦ · 4« * 4 · «• · · · · · ·« · ♦ · · 999 9 • 9 «· 999« ·· ♦ «· ·« «·» 99 9 25 11 »Αζ 1-10. Apparatus according to any one of claims 1 to 4, characterized in that the tray (21) has an air vent (29) for exhausting the spray air. A method of applying a heat or sound or noise protection coating preferably to a metal container vessel wall coating composition, wherein the mixture is held from feed to outlet in the processor receiving portion of the apparatus, further comprising a rotating conveyor comprising a conveyor and a sieve and a distribution unit. means, distributor and blowing elements for transferring to the blowing chamber, and therewith a conveying conduit and spout for removing the mixture, injecting at the end of the spout, spray water or a mixture of atomized air and water » in the throat, mix with shredding blades (5) and transfer with an endless screw (4) to the blades (6) of the screw (A), with the comb fingers to separate the fibers of the mixture and force it to move downward. the mixture (8) is introduced into the blowing chamber (11) and fed to a conveying conduit (15) through an air blower (12), the blades (6) and / or distributing a variable number of syringes (16) and / or nozzles (17) disposed in the conveying duct (15) according to the consistency of the powder and / or fibrous mixture to be dispensed, moving the water content of the mixture in its apparatus movement At the same time, increasing the dry product character of the mixture to be sprayed while maintaining the dry product character throughout the flow to the end of the nozzle (13) (14) and the nozzle (18) to the nozzle (13) and reinforcing the sputtering or dusting spreader tray (21) and spreading the mixture with a roller (28) or roller (32) formed on the surface of the spreader tray (21) and smoothing out the resulting coating » 13 = Method according to claim 12, characterized in that at least two rollers (28) or rollers (32) are provided on adjacent sides of the spray pan (21) to seal the space between the spray pan (21) and the surface to be coated, which is flexible preferably made of rubber or plastic perpendicular to the surface to be coated where the flaps / height are equal to or greater than the thickness of the coating »