KR102133499B1 - Yellow earth tex and Manufacturing method of yellow earth tex - Google Patents

Abstract

The present invention relates to a method for manufacturing ocher tex and ocher tex, and a method for manufacturing ocher tex comprising ocher and pearlite comprises: a pearlite transfer step of transferring pearlite to a mixer by a transfer device; A mixing step of mixing ocher and an inorganic binder; A vacuum forming step of forming the inside of the mixer by vacuum; A spray injection step of spraying the yellow earth and the inorganic binder mixed through the sprayer connected to the mixer into the pearlite; A molding step of molding the pearlite from which the ocher and the inorganic binder are sprayed through a molding machine; It characterized in that it comprises a; drying step of passing the pearlite injected with the inorganic binder and the inorganic binder is passed through a dryer, the ocher tex produced through this, the pearlite 50 to 55% by weight, the ocher 17 to 20% by weight %, characterized in that it contains 10 to 12% by weight of the inorganic binder.

Description

Yellow earth tex and manufacturing method of yellow earth tex}

The present invention relates to a method for manufacturing ocher tex and ocher tex, and more specifically, injecting ocher into pearlite in a mixing machine made of vacuum, and drying it through a microwave dryer to produce eco-friendly ocher tex. It relates to ocher tex and a method for manufacturing ocher tex.

In general, the board refers to a gypsum board mainly used for walls and a text board that is installed on the outside after installing a number of frames on the ceiling. .

Conventional tex (tex board) is made of a mixture of gypsum and pulp, but the conventional tex has a disadvantage that it is not high in strength and is damaged even with small impacts, and is not environmentally friendly as it is made of a mixture of gypsum and pulp. . In addition, in addition to generating toxic gases in the fire, there is a problem that is not evaluated as a completely non-combustible material due to the properties of organic materials.

In addition, due to the nature of gypsum, which is inherently weak in water absorption and water resistance, gypsum is easily generated inside and there is a problem in that gypsum is easily deteriorated. In the case of conventional gypsum tex, paper on both sides of the product is used to reinforce shape retention and rupture strength. There was a discomfort that should be used to attach.

Accordingly, it is a situation that is developing a text using eco-friendly material ocher. In the case of ocher tex, it has excellent water resistance, so it does not cause corrosion and oxidation, is a completely non-combustible material, and has the advantage of reducing environmental pollution through an environmentally friendly production process.

However, such ocher tex has a problem in that it is difficult to manufacture due to cracks (cracks) during molding and drying, and it is difficult to transport and construct because of its heavy specific gravity. In addition, there is a problem in that production costs and costs are high as the loess is uniformly molded and naturally dried for more than 24 hours, and then calcined at a high temperature, and the surface strength of the loess tex is high and the hardness is strong. It is impossible, and there is a problem that it is difficult to cut or process.

The present invention is to solve the above-mentioned problems, and more specifically, injecting the ocher into pearlite in a mixing machine made of vacuum, and drying it through a microwave dryer to produce an eco-friendly ocher texture that can produce an ocher texture. And it relates to a method for manufacturing ocher tex.

The method for manufacturing ocher tex according to an embodiment of the present invention for solving the above-mentioned problems is a method for manufacturing ocher tex including ocher and pearlite, a pearlite transfer step of transferring pearlite to a mixing device by a transfer device; A mixing step of mixing ocher and an inorganic binder; A vacuum forming step of forming the inside of the mixer by vacuum; A spray injection step of spraying the yellow earth and the inorganic binder mixed through the sprayer connected to the mixer into the pearlite; A molding step of molding the pearlite from which the ocher and the inorganic binder are sprayed through a molding machine; Drying step of passing the pearlite injected with the ocher and the inorganic binder through a dryer; to prepare an ocher tex while being made, wherein the ocher tex is 50 to 55% by weight of the pearlite, and 17 to 20% by weight of the ocher , It characterized in that it comprises 10 to 12% by weight of the inorganic binder.

The dryer of the drying step of the ocher tex manufacturing method according to an embodiment of the present invention for solving the above-described problems generates a microwave, and the pearlite injected with the ocher and the inorganic binder is dried through microwave It is desirable.

The vacuum pressure of the mixer of the method for manufacturing ocher tex according to an embodiment of the present invention for solving the above-described problem is preferably made of -0.7 to -0.3 atm.

It is preferable that the injection angle of the injector in the injection injecting step of the method for manufacturing ocher tex according to an embodiment of the present invention for solving the above-described problem is made from 110 to 130 degrees.

After the injection input step of the method for manufacturing ocher tex according to an embodiment of the present invention for solving the above-described problems, further comprising a mesh network input step, the mesh network input step, the base is provided, pores inside the base It is preferable to insert the formed mesh net, and to insert the pearlite injected with the ocher and the inorganic binder from the top of the mesh net, and it is preferable that the size of the pores of the mesh net is 5 mm to 7 mm.

In the mixing step of the method for producing ocher tex according to an embodiment of the present invention for solving the above-described problems, vermiculite and fiber are mixed together with the ocher and the inorganic binder, and the ocher tex is 50 to 55 weight of pearlite %, 17 to 20% by weight of the ocher, 10 to 12% by weight of the inorganic binder, 8 to 10% by weight of the vermiculite, and 0.5 to 2% by weight of the fiber.

Ocher text according to an embodiment of the present invention for solving the above-mentioned problems is pearlite; It is made of, including; ocher and inorganic binders injected into the pearlite; 50 to 55% by weight of the pearlite, 17 to 20% by weight of the ocher, and 10 to 12% by weight of the inorganic binder.

It is preferable that the ocher and the inorganic binder of ocher tex according to an embodiment of the present invention for solving the above-described problems are sprayed and injected into the pearlite in a mixer made of vacuum, and the vacuum pressure of the mixer is -0.7 It is preferably made of -0.3 atm.

The ocher and the inorganic binder of ocher tex according to an embodiment of the present invention for solving the above-mentioned problems are mixed with vermiculite and fiber and injected into the pearlite, the pearlite 50 to 55% by weight, the ocher 17 to 20 It is preferable to include 10% by weight, 10 to 12% by weight of the inorganic binder, 8 to 10% by weight of the vermiculite, and 0.5 to 2% by weight of the fiber.

It is preferable that the ocher tex according to an embodiment of the present invention for solving the above-mentioned problems further includes a mesh network in which pores provided in the pearlite in which the ocher and the inorganic binder are injected are formed, and the mesh network The size of the pores is preferably 5mm to 7mm.

The pearlite in which the ocher and the inorganic binder of the ocher tex according to an embodiment of the present invention for solving the above-described problems are sprayed is preferably dried in a dryer in which microwaves are generated.

The present invention relates to a method for manufacturing ocher texts and ocher texts capable of producing eco-friendly ocher texts, and coating the ocher and inorganic binder in a spherical form on pearlite, while continuously forming them through a molding machine, thereby cracking during drying. It can be prevented from occurring, and the use of pearlite makes it easy to carry and construct as the specific gravity is lowered, and has the advantage of facilitating molding and processing.

In addition, the present invention has the advantage of preventing natural drying while uniformly coating the ocher and the inorganic binder by using a mixer in which a vacuum is formed, and the present invention can shorten the drying time as it is dried through microwaves. There is an advantage.

1 is a view showing a process diagram of a method for manufacturing ocher tex according to an embodiment of the present invention.
2 is a view showing an ocher text manufacturing apparatus according to an embodiment of the present invention.
3 is a view showing that a mesh network feeder is added to an ocher text manufacturing apparatus according to an embodiment of the present invention.
4 is a view showing a mesh network according to an embodiment of the present invention.
5 is a view showing that a microwave dryer is added to the ocher text manufacturing apparatus according to an embodiment of the present invention.

The present invention relates to a method for manufacturing ocher tex and ocher tex, which is injected into the pearlite in a mixing machine made of vacuum to pearlite, and dried through a microwave dryer to produce an eco-friendly ocher tex and ocher. It relates to a method of manufacturing a tex.

The ocher tex according to an embodiment of the present invention indicates the tex used for the ceiling, but is not limited thereto, and may be used as a board (tex board) used for the wall of the building. When the ocher text according to the embodiment of the present invention is used as a board, it can be used as a board by changing the size of the ocher text, and it can also be used as a board while reinforcing strength by using a mesh network inside the ocher text. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1, the method for manufacturing ocher tex according to an embodiment of the present invention, transfer step (S100), mixing step (S200), vacuum forming step (S300), injection input step (S400), forming step (S500) , Drying step (S600).

The loess tex according to the embodiment of the present invention can be manufactured through the loess tex manufacturing apparatus. The ocher tex manufacturing apparatus includes a transfer device 110, a mixing machine 120, an injector 130, a rotary valve 140, a mixing shaft 150 and a mixing blade 151, a quantitative feeder 160, and a roll forming machine ( 170), but may be made, including a mesh network feeder 180, a dryer 190, but is not limited thereto, and various devices may be used to manufacture ocher text.

The transfer step (S100) is a step of transferring the pearlite to the mixer 120 using the transfer device 110. Referring to FIG. 2, the transfer device 110 may be provided at the top of the mixer 120. When the pearlite is transferred to the transfer device 110 after being transferred through a bucket elevator or the like, the pearlite passes through the transfer device 110 and is introduced into the mixing device 120.

As will be described later, the interior of the mixer 120 maintains a vacuum. Therefore, when the pearlite is introduced into the mixing unit 120 through the transfer device 110, it is preferable to prevent air from entering together. To this end, a valve capable of removing air may be provided in the transfer device 110, and the air is removed through the valve, so that the pearlite is introduced into the mixer 120 through the transfer device 110. do.

The mixing step (S200) is a step of mixing an ocher and an inorganic binder. Specifically, the mixing step (S200) is a step of diluting the ocher and the inorganic binder, wherein other materials other than the ocher and the inorganic binder may be further mixed. For example, vermiculite, fiber, etc. may be mixed together.

Here, the inorganic binder refers to an inorganic binder, and the inorganic binder is cement (Portland cement) or calcium sulfate as the main component, gypsum or mud or clay, liquid sodium silicate, alumina silicate, and silicic acid Calcium and the like can be used.

The vacuum forming step (S300) is a step of forming the inside of the mixer 120 by vacuum. Referring to FIG. 2, the rotary valve 140 may be used to make the inside of the mixer 120 a vacuum. The rotary valve 140 is connected to the mixer 120, and sucks air inside the mixer 120 to make the inside of the mixer 120 into a vacuum.

Specifically, the rotary valve 140 can suck air at -0.7 to -0.3 atm, and through this, the vacuum pressure inside the mixer 120 can be formed at -0.7 to -0.3 atm.

The spraying step (S400) is a step of spraying the mixed ocher and the inorganic binder into the pearlite through the sprayer 130 connected to the mixer 120. Referring to FIG. 2, the injector 130 may be formed in a nozzle shape, and the ocher and the inorganic binder mixed in the pearlite introduced into the mixing unit 120 through the injector 130 are introduced. .

That is, in the injection step (S400), the ocher and the inorganic binder are diluted and mixed and injected into the pearlite, so that the ocher and the inorganic binder can be coated in a spherical shape on the pearlite.

When coating the ocher and the inorganic binder mixed in the pearlite in a spherical form as described above, it is preferable that the inside of the mixer 120 is made of vacuum. When the inside of the mixing machine 120 is vacuumed, the mixed yellow soil and the inorganic binder can be coated evenly, and it is possible to prevent the yellow soil and the inorganic binder from being naturally dried by air. In addition, as the inside of the mixer 120 is formed in a vacuum, it is possible to prevent the stenosis inside the mixer 120.

A mixing shaft 150 and a mixing blade 151 coupled to the mixing shaft 150 may be provided inside the mixing machine 120. The mixing blade 151 is rotated based on the mixing shaft 150, and the mixing blade 151 can serve to promote the mixed ocher and the inorganic binder to be coated on the pearlite. .

Referring to FIG. 2, the mixer 120 may be formed in a box shape, and the injector 130 may be coupled to an upper side of the mixer 120. In the injection step (S400), the injection angle of the injector 130 is preferably made of 110 to 130 degrees.

The injector 130 is coupled to the upper side of the mixing machine 120, the injection of the injector 130 in order to uniformly inject the mixed loess and the inorganic binder to be injected into the mixing machine 120 The angle is preferably made of 110 to 130 degrees.

The forming step (S500) is a step of forming the pearlite in which the ocher and the inorganic binder are sprayed through a molding machine 170. Specifically, the pearlite coated through the ocher and the inorganic binder may be molded through the molding machine 170 provided with the roll 171.

Referring to FIG. 2, when the pearlite is coated on the mixing machine 120 through the ocher and the inorganic binder, the pearlite can be transferred to the quantitative feeder 160, and the quantitative feeder 160 The required amount is transferred to the molding machine 170. The forming machine 170 may be provided with a pedestal 172, and the coated pearlite is transferred to the pedestal 172 via the quantitative feeder 160. The pearlite transferred to the pedestal 172 is formed into a required shape through the roll 171.

As described above, the ocher text produced by the ocher text manufacturing method according to the embodiment of the present invention may be used as a text used for a ceiling, or may be used as a board used for a wall. In order for the ocher tex to be used as a board, the strength must be reinforced, and for this purpose, a mesh network 181 in which pores are formed may be used.

The mesh network 181 may be inserted into the pearlite coated with the ocher and the inorganic binder, and a mesh network input step (S700) may be further included to insert the mesh network 181.

The mesh network input step (S700) may be performed after the injection input step (S400), and the mesh network input step (S700) may be performed simultaneously with the molding step (S500).

Specifically, referring to FIG. 3, a mesh network feeder 180 in which the mesh network 181 is wound in a roll form is provided, and the mesh network 181 is transferred from the mesh network feeder 180 to the pedestal 172. ). As described above, since the pearlite coated with the ocher and the inorganic binder is molded after being transferred to the pedestal 172, the mesh network 181 is supplied to the pedestal 172 into the pearlite. Allow the mesh network 181 to be inserted.

More specifically, the support 172 is provided, the mesh network 181 having pores formed inside the support 172 is inserted through the mesh network feeder 180, and from the upper part of the mesh network. The pearlite injected with the ocher and the inorganic binder is injected.

At this time, the mesh network 181 is preferably put in the middle of the pedestal 172. When the pearlite is supplied to the pedestal 172, the mesh network 181 must be put in the middle of the pedestal 172 so that the mesh network 181 can be inserted in the middle of the pearlite.

That is, when the pearlite coated with the ocher and the inorganic binder is introduced from the top of the mesh network 181, the pearlite passes from the bottom of the mesh network 181 while the pearlite passes through the pores of the mesh network 181. When the pearlite is continuously deposited, the mesh net 181 is buried inside the pearlite while the pearlite is continuously accumulated. When the mesh net 181 is buried inside the pearlite (if inserted), it is molded using the roll 171 of the molding machine 170.

Here, referring to Figure 4, the size of the pores of the mesh network 181 is preferably made of 5mm to 7mm. If the size of the pores of the mesh network 181 is less than 5 mm, it is difficult to easily pass through the mesh network 181 by the size of the pearlite particles coated with the ocher and the inorganic binder. If the pearlite does not easily pass through the pores of the mesh network 181, the pearlite does not accumulate uniformly, and after the pearlite molding, the mesh network 181 is not located in the middle of the pearlite, but is eccentrically positioned. There is a danger. Therefore, the size of the pores of the mesh network 181 is preferably greater than 5mm.

In addition, when the size of the pores of the mesh network 181 is greater than 7 mm, the strength of the mesh network 181 is lowered. Therefore, the size of the pores of the mesh network 181 is preferably made smaller than 7mm. As described above, when the mesh network input step (S700) is performed, it is possible to use ocher tex according to an embodiment of the present invention as a board for a wall as well as a tex used for a ceiling.

The forming machine 170 may be continuously conveyed while forming the pearlite by using a conveyor belt or the like, and the mesh network feeder 180 may also be formed in a roll form to continuously supply the mesh network 181. It can be done.

The drying step (S600) is a step of drying the pearlite that has been subjected to the forming step (S500), and drying the pearlite injected with the ocher and the inorganic binder while passing through the dryer 190.

Referring to FIG. 5, the dryer 190 of the drying step (S600) may use a dryer capable of generating microwaves, and the pearlite injected with the ocher and the inorganic binder may be dried through microwaves. Can.

The dryer 190 may be composed of a loading section (1m), a loading shield section (1m), a drying section (9m), an unloading cafe section (1m), and an unloading section (1m) capable of loading the pearlite. As a result, it is possible to dry the pearlite by generating microwaves in the drying section. In the dryer 190, the pearlite can be continuously dried while passing each section continuously, and has the advantage of being able to continuously dry as the microwave is used.

Conventional Tex was dried through general thermal drying, but such a heating method cannot continuously dry, and has a problem of requiring a drying time of 8 to 10 hours as a surface heating method due to low thermal conductivity. However, the method of drying the pearlite by spraying (coating) the ocher and the inorganic binder by microwave is a method of evaporating wind after pushing microwave permeable moisture to the surface, not the surface heating method, so that the ocher texture In addition to causing the surface strengthening action of, it has an advantage of effectively shortening the drying time to 1 to 5 minutes.

The ocher tex according to an embodiment of the present invention is produced through the above-described method of manufacturing the ocher tex, and the ocher tex is 50 to 55 wt% of the pearlite, 17 to 20 wt% of the ocher, and 10 to 12 wt% of the inorganic binder It can be made including.

In addition, in the mixing step (S200), vermiculite and fiber may be mixed together with the ocher and the inorganic binder, in this case, the ocher text, the pearlite 50 to 55 wt%, the ocher 17 to 20 wt% , 10 to 12 wt% of the inorganic binder, 8 to 10 wt% of the vermiculite, and 0.5 to 2 wt% of the fiber.

The ocher tex is one in which the ocher and the inorganic binder are coated on the pearlite, and strength can be maintained through the pearlite. Thus, in order to maintain the strength through the pearlite, the pearlite is preferably made of 50 to 55% by weight.

In the case of the ocher, if the content is too high, cracking may occur during molding drying, and the specific gravity is heavy, making transportation and construction difficult. Therefore, it is preferable that the content of the ocher is 20% by weight or less, and the content of the ocher is preferably 17% by weight or more in order to produce an eco-friendly ocher text. The inorganic binder may be used to dilute the ocher, and the inorganic binder is preferably 10 to 12% by weight to effectively dilute the ocher and coat the pearlite.

When explaining the ocher tex according to an embodiment of the present invention through the above-described method of manufacturing the ocher tex as follows.

Ocher text according to an embodiment of the present invention, comprises a pearlite and an ocher and an inorganic binder injected into the pearlite, the pearlite 50 to 55% by weight, the ocher 17 to 20% by weight, the inorganic binder 10 to 12% by weight.

The ocher and the inorganic binder of the ocher tex may be injected and injected into the pearlite from a mixing machine 120 made of vacuum, wherein the vacuum pressure of the mixing machine 120 is -0.7 to -0.3 atm. It can be done. The injection of the ocher and the inorganic binder to the pearlite is performed in the same manner as the injection injection step (S400) described above.

The ocher and the inorganic binder of the ocher tex are mixed with vermiculite and fiber and injected into the pearlite, 50 to 55 wt% of the pearlite, 17 to 20 wt% of the ocher, 10 to 12 wt% of the inorganic binder, and the Vermiculite 8 to 10% by weight, the fiber may be made to include 0.5 to 2% by weight. The vermiculite and fiber may be injected in the above-described injection step (S400).

The ocher tex may further include the mesh network 181 in which pores provided in the pearlite in which the ocher and the inorganic binder are injected are formed, and the size of the pores of the mesh network 181 is It is preferably 5 mm to 7 mm. The mesh network 181 may be inserted into the pearlite through the mesh network input step (S700).

It is preferable that the pearlite injected with the ocher and the inorganic binder of the ocher tex is dried in the dryer 190 in which microwaves are generated. The method for drying the pearlite in the dryer 190 proceeds in the same way as the drying step (S600) described above.

The ocher text and the ocher text manufacturing method according to the above-described embodiment of the present invention have the following effects.

Conventional tex (tex board) is made of a mixture of gypsum and pulp, but the conventional tex has a disadvantage that it is not high in strength and is damaged even with small impacts, and is not environmentally friendly as it is made of a mixture of gypsum and pulp. . In addition, the conventional ocher tex has a problem in that it is difficult to manufacture due to cracks (cracks) during molding and drying, and the specific gravity is heavy, making it difficult to carry and construct.

However, according to an embodiment of the present invention, the method for manufacturing ocher tex and ocher tex is produced by coating the ocher and the inorganic binder in a spherical form on the pearlite, and continuously forming them through the molding machine 170, thereby cracking during drying. It can be prevented from occurring, and according to the use of the pearlite, the relative specific gravity is lowered, so that transport and construction are facilitated, and molding and processing are facilitated.

In addition, the method for manufacturing ocher tex and ocher tex according to an embodiment of the present invention can be coated evenly by coating the pearlite with the ocher and the inorganic binder in the mixer 120 formed by vacuum, and generated by air There is an effect that can prevent the natural drying. In addition, there is an effect that can prevent the stenosis occurring inside the mixer (120).

In addition, the conventional tex was dried through general thermal drying, but such a heating method cannot continuously dry, and has a problem of requiring a drying time of 8 to 10 hours as a surface heating method due to low thermal conductivity.

However, in the method for manufacturing the pearlite by spraying (coating) the ocher and the inorganic binder in the ocher tex and the method for manufacturing the ocher tex according to the embodiment of the present invention, the method of drying the pearlite by microwave is not the surface heating method. Since it is a method of evaporating wind after being pushed to the surface, it not only causes the surface strengthening effect of ocher tex, but also has an advantage of effectively shortening the drying time to 1 to 5 minutes.

As described above, the present invention has been described in detail with reference to preferred embodiments, but the present invention is not limited to the above embodiments, and various modifications may be provided without departing from the scope of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

S100...transfer step
S200... mixing phase
S300...Vacuum formation step
S400...Injection step
S500... forming step
S600...drying step
S700... mesh network input phase
110...conveyor 120...mixer
130...Injector 140...Rotary valve
150...mixing shaft 151...mixing wing
160...Measurement feeder 170...Molding machine
171... roll 172... stand
180...mesh network feeder 181...mesh network
190... dryer

Claims (14)

As a method of manufacturing ocher text comprising ocher and pearlite,
A pearlite transfer step of transferring the pearlite to a mixing machine by a transfer device;
A mixing step of mixing ocher and an inorganic binder;
A vacuum forming step of forming the inside of the mixer by vacuum;
A spray injection step of spraying the mixed earth and the inorganic binder into the pearlite through a sprayer connected to the mixer;
A molding step of molding the pearlite from which the ocher and the inorganic binder are sprayed through a molding machine;
And a drying step of passing the pearlite injected with the ocher and the inorganic binder through a dryer;
The ocher text, the pearlite 50 to 55 wt%, the ocher 17 to 20 wt%, the inorganic binder 10 to 12 wt%,
The dryer in the drying step generates microwaves, and the pearlite injected with the ocher and the inorganic binder is dried through microwaves,
After the injection input step, further comprising a mesh network input step,
The mesh network input step,
A pedestal is provided, a mesh network having pores formed inside the pedestal is inserted, and the pearlite injected with the ocher and the inorganic binder is injected from the top of the mesh network,
Ocher tex manufacturing method characterized in that the size of the pores of the mesh network is 5mm to 7mm. delete According to claim 1,
The vacuum pressure of the mixer, -0.7 to -0.3 ocher tex manufacturing method characterized in that it is made of an atmospheric pressure. According to claim 1,
Ocher tex manufacturing method characterized in that the injection angle of the injector in the injection step is made 110 to 130 degrees. delete delete According to claim 1,
In the mixing step,
Vermiculite, fiber is mixed with the ocher and the inorganic binder,
The ocher tex is characterized in that it comprises 50 to 55% by weight of the pearlite, 17 to 20% by weight of the ocher, 10 to 12% by weight of the inorganic binder, 8 to 10% by weight of the vermiculite, and 0.5 to 2% by weight of the fiber Ocher Tex manufacturing method. An ocher text comprising ocher and pearlite,
Pearlite;
It is made, including; ocher and inorganic binders injected into the pearlite;
50 to 55% by weight of the pearlite, 17 to 20% by weight of the ocher, 10 to 12% by weight of the inorganic binder,
The ocher and the inorganic binder are injected and injected into the pearlite in a mixer made of vacuum,
The ocher and the inorganic binder further comprises a mesh network in which pores are provided inside the pearlite is injected,
The size of the pores of the mesh network is 5mm to 7mm,
The ocher and the inorganic binder is injected is injected pearlite, ocher tex, characterized in that drying in a microwave-generated dryer. delete The method of claim 8,
The vacuum pressure of the mixing machine, ocher tex, characterized in that consisting of -0.7 to -0.3 atm. The method of claim 8,
The ocher and the inorganic binder are mixed with vermiculite and fiber and injected into the pearlite.
The pearlite 50 to 55% by weight, the ocher 17 to 20% by weight, the inorganic binder 10 to 12% by weight, the vermiculite 8 to 10% by weight, the fiber ocher characterized in that it comprises 0.5 to 2% by weight.
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