KR102334185B1 - Apparatus for manufacturing quasi-noncombustible insulation sheet - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a semi-incombustible insulating sheet, and the apparatus for manufacturing a semi-non-combustible insulating sheet according to the present invention comprises: a mixing unit for mixing a non-combustible material provided in powder form as a raw material and a heat insulating material provided in a fine hollow powder form; a stirring unit for heating and stirring the mixture in powder form and the crosslinking agent discharged from the mixing unit; an extrusion unit for extruding the mixture in the form of dough discharged from the stirring unit into a sheet form; and a rolling unit which heats and compresses the sheet-shaped mixture molded in the extruding unit in the thickness direction to form a target thickness.

Description

Apparatus for manufacturing quasi-noncombustible insulation sheet}

The present invention relates to an apparatus for manufacturing a semi-incombustible insulation sheet, and more particularly, to a semi-non-combustible insulation capable of thinly forming a semi-noncombustible insulation sheet while preventing deterioration of non-combustible performance by minimizing the content of a cross-linking agent for bonding a non-combustible material and a heat insulating material. It relates to a sheet manufacturing apparatus.

Architectural wall finishing materials refer to materials used to finish and decorate the walls inside a building.

These architectural wall finishes must be durable to withstand abrasion, and must not be harmful to humans or the environment.

In the past, durability and flame resistance were important requirements, and plywood, gypsum board, and balm light were used as finishing materials, and PVC, paper, low pressure melamine sheet, High pressure melamine sheets, finishing foils, etc. have been used.

If you look at the conventionally used interior boards in detail, first, because plywood absorbs water, cracks occur due to the expansion and contraction of water, resulting in torsion, so it has low durability and is weak against fire due to its low flash point. have.

In addition, preservatives are added to prevent spoilage, and formaldehyde contained in preservatives is a carcinogen that causes cancer, and other organic compounds cause skin diseases.

In addition, the gypsum board absorbs a large amount of water, thereby weakening its strength and proliferating mold, etc., and thus has unsanitary disadvantages.

In addition, although Bamlite has flame resistance, it is easily damaged due to severe distortion, and its use as a residential construction material is recently restricted due to the content of carcinogens.

On the other hand, in the case of decorative sheets used for interior boards, first, PVC sheets cannot express natural texture, so the aesthetics is lowered, the hardness is weak, so the surface is easily scratched, and it is not easily removed even if it is dirty. have.

In particular, in the event of a fire, it releases toxic gas and causes personal injury. In addition, 'Greenpeace' warned that PVC's phthalate-based plasticizers cause liver and kidney disorders, reproductive defects, and are endocrine disorders. After reviewing whether toy products are harmful to the human body, it was warned that potential hazardous chemicals such as DEHP and DINP may have an adverse effect on children when children under 3 years old suck on toys.

In addition, the decorative sheet using the paper sheet attaches the printed paper sheet to the surface of the substrate, and the printed paper is impregnated with a synthetic resin in consideration of problems such as durability and abrasion resistance to adhere to the substrate. However, the paper sheet has problems such as generation of bubbles or peeling in the bonding process. In addition, there is a disadvantage that the surface is easily scratched due to low strength.

In addition, the low-pressure melamine sheet is a resin sheet for molding in which patterned paper is made by gravure printing on paper and melamine resin is impregnated on the patterned paper, and there is always a risk of injury due to operator's carelessness, and productivity is also limited.

In addition, the high-pressure melamine sheet is compressed by thermal pressure of 50kgf/cm2 or more in a multidaylight press by laminating and laminating melamine and phenolic resin, which are thermosetting resins, on a paper or fibrous substrate with natural and artificial patterns printed on one side. As a plate-like material manufactured by molding, the equipment cost is high, the processing time is long, and the productivity is limited, and the resin itself contains a phenol component, which is not environmentally friendly.

Recently, in order to solve various problems occurring in the various wall finishing materials used in the prior art, a number of magnesium boards made of magnesium as a main raw material have been applied.

Advantages of magnesium board include high strength, non-flammability, semi-incombustibility, sound insulation, watertightness, environmental friendliness, and harmful electromagnetic wave blocking properties.

In particular, it was found to be effective in reducing harmful environmental substances required for surface treatment of finishing materials in various finishing materials.

However, since these magnesium boards have low thermal insulation performance, recently, the construction method of reinforcing thermal insulation performance by installing the magnesium board on the construction target surface first, and applying paint mixed with thermal insulation particles on the exposed surface of the magnesium board, has attracted attention. have.

However, in the method of applying paint mixed with heat insulating particles to the construction surface, it is difficult to provide uniform thermal insulation performance because the insulating particles are not uniformly distributed on the construction surface, and the powder form insulating particles and paint at the construction site There is a problem in that there is a big difference in construction quality and insulation performance depending on the skill level of the worker because it is applied by mixing.

Therefore, there is a need for development of a semi-incombustible finishing material that is environmentally friendly and has thermal insulation performance added thereto.

On the other hand, the magnesium board is molded by mixing a crosslinking agent with a raw material containing magnesium as a main component. This is lowered, and there is a problem in that it is difficult to form a thin sheet.

Patent Document 1. Republic of Korea Patent Registration 10-1258400 (July 31, 2012)

Accordingly, it is an object of the present invention to solve the problems of the related art, and to minimize the content of a crosslinking agent for bonding the non-combustible material and the heat insulating material to prevent deterioration of the non-combustible performance and to form a semi-noncombustible insulating sheet thinly To provide an apparatus for manufacturing an insulating sheet.

The above object is, according to the present invention, a mixing unit for mixing a non-combustible material provided in powder form as a raw material and a heat insulating material provided in a fine hollow powder form; a stirring unit for heating and stirring the mixture in powder form and the crosslinking agent discharged from the mixing unit; an extrusion unit for extruding the mixture in the form of dough discharged from the stirring unit into a sheet form; And it is achieved by a semi-non-combustible insulating sheet manufacturing apparatus comprising a; and a rolling unit for heating and compressing the mixture in the form of a sheet molded in the extrusion unit to a target thickness by heating and compression in the thickness direction.

Here, it is preferable that the heat insulating material has aluminum silicate as a main component, and the diameter of the micro-hollow body is 20 to 100 μm.

In addition, the stirring unit includes a stirring tank, a heater for heating the stirring tank, and a stirring screw disposed in the stirring tank, and the mixed powder discharged from the mixing unit and the crosslinking agent are stirred under a high-temperature atmosphere to produce a mixture in the form of a dough It is preferable to do

In addition, the crosslinking agent preferably includes a thermoplastic resin.

In addition, the extruder preferably includes an extruder for transferring the mixture in the form of dough at high pressure using an extrusion screw, and an extrusion die for discharging the mixture in the form of dough at high pressure provided from the extruder in the form of a sheet.

In addition, it is preferable that a plurality of the extruders are provided and each connected to one extrusion die in a state in which they are spaced apart along the width direction of the sheet.

In addition, the rolling unit includes a plurality of heating rollers disposed vertically to compress the sheet, and the sheet discharged from the extruding unit passes between the adjacent heating rollers in a state wound on a portion of the surface of the plurality of heating rollers It is preferable to be compressed while doing it.

In addition, the plurality of heating rollers are disposed at the uppermost and lowermost ends of the plurality of heating rollers, respectively, and a driving heating roller that receives power from an external driving source to rotate, and an idle heating roller that is disposed between the driving heating roller and rotates idly. It is preferable to include

In addition, the diameter of the idle heating roller is preferably set relatively large compared to the diameter of the driving heating roller.

In addition, it is preferable that a plurality of the idle heating rollers are provided.

In addition, it is preferable to further include a cooling unit for cooling the sheet discharged from the rolling unit.

In addition, the cooling unit may include a cooling nozzle disposed in a direction transverse to the sheet and spraying a cooling fluid toward the sheet.

In addition, it is preferable that the cooling nozzle is arranged such that the middle portion corresponding to the center of the sheet faces upstream with respect to the traveling direction of the sheet relative to the end portions corresponding to both sides of the sheet.

In addition, it is preferable that a plurality of the cooling nozzles are provided and arranged to be spaced apart along the traveling direction of the sheet, and the injection amount of the cooling fluid is individually controlled by the plurality of cooling nozzles.

According to the present invention, there is provided an apparatus for manufacturing a semi-noncombustible insulation sheet capable of thinly molding a semi-noncombustible insulation sheet while preventing a decrease in non-combustible performance by minimizing the content of a crosslinking agent for bonding a non-combustible material and a heat insulating material.

1 is a block diagram of an apparatus for manufacturing a semi-non-combustible insulating sheet according to the present invention;
2 is a configuration diagram of a mixing unit and agitating unit according to the apparatus for manufacturing a semi-non-combustible insulating sheet of the present invention;
3 is a configuration diagram of an extruded part according to the apparatus for manufacturing a semi-non-combustible insulating sheet according to the present invention;
4 is a configuration diagram of a rolling part according to the apparatus for manufacturing a semi-non-combustible insulating sheet of the present invention;
5 is a block diagram of a cooling unit according to an apparatus for manufacturing a semi-non-combustible insulating sheet according to the present invention;
6 is a cross-sectional view of a semi-non-combustible heat insulating sheet manufactured by the apparatus for manufacturing a semi-non-combustible heat insulating sheet of the present invention.

Prior to the description, in various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, configurations different from those of the first embodiment will be described. do.

Hereinafter, an apparatus for manufacturing a semi-non-combustible insulating sheet according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Of the accompanying drawings, FIG. 1 is a block diagram of a semi-non-combustible heat insulating sheet manufacturing apparatus of the present invention, FIG. 2 is a block diagram of a mixing unit and agitating unit according to the semi-noncombustible heat insulating sheet manufacturing apparatus of the present invention, and FIG. The configuration diagram of the extruded part according to the apparatus, FIG. 4 is a configuration diagram of the rolled part according to the apparatus for manufacturing a semi-non-combustible insulation sheet according to the present invention, FIG. It is a cross-sectional view of the semi-noncombustible heat insulating sheet manufactured by the semi-noncombustible heat insulating sheet manufacturing apparatus.

As shown in the drawings, the present invention semi-incombustible insulating sheet manufacturing apparatus includes a mixing unit 110 , a stirring unit 120 , an extruding unit 130 , a rolling unit 140 , and a cooling unit 150 .

The mixing unit 110 is for mixing the non-combustible material (A1), the heat insulating material (A2) and the talc agent (A3), which are raw materials of the semi-incombustible insulating sheet (S), and a mixing tank 111 having an accommodation space therein; It includes a mixing screw 112 disposed inside the mixing tank 111 and a driving unit for providing rotational force to the mixing screw 112, and the mixing tank 111 has an upper side open to supply raw materials to the internal accommodation space. A discharge port opened and closed by an on/off valve is provided at the lower side to discharge a mixture of the incombustible material A1, the heat insulating material A2, and the talc agent A3 mixed in the mixing tank 111.

The non-combustible material (A1) serves to impart non-combustible performance. If the content of the non-combustible material (A1) is low, the non-combustible effect is insignificant, and if the content of the non-combustible material (A1) is high, the weight of the sheet (S) increases and the mechanical properties decrease can be This incombustible material (A1) is provided in the form of a powder containing magnesium as a main component, and may be made of magnesium oxide (MgO), magnesium chloride (MgCl ₂ ), magnesium hydroxide (Mg(OH) ₂ ), magnesium sulfate (MgSO ₄ ), etc. have.

The heat insulating material (A2) serves to impart heat insulating performance, and when the content is low, the heat insulating effect is insignificant, and when the content of the heat insulating material (A2) is high, mechanical properties such as elasticity, durability, and adhesion may be reduced. The insulating material A2 is provided in the form of a powder of a microscopic hollow sphere having a size of 20 to 100 μm containing aluminum silicate as a main component, and is also referred to as 'insuladd'. Insulad is a state-of-the-art new material developed by NASA to block the solar radiation that penetrates the outer shell of the space shuttle. 0.047 W/mK), so it has a very excellent thermal insulation performance, and since the configuration and effect of the insulator are already known, a detailed description thereof will be omitted. On the other hand, since the fine hollow body constituting the heat insulating material (A2) has a larger diameter, it provides excellent heat insulating performance. .

The talc agent (A3) functions as a dispersing agent, is provided in powder form, and contains zinc stearate (Zn(C ₁₈ H ₃₅ O ₂ ) ² ) as a main component.

The stirring unit 120 stirs the powder mixture discharged from the mixing unit 110 and the crosslinking agent (A4) in a heated state, and includes a stirring tank 121 having an accommodation space therein, and the stirring tank 121 a heater 122 for heating, a stirring screw 123 disposed inside the stirring tank 121, and a driving unit providing rotational force to the stirring screw 123, wherein the stirring tank 121 is the mixing unit The upper side is opened to supply the mixture in powder form and the crosslinking agent (A4) mixed in 110, and the lower side is to the on/off valve to discharge the mixture (M) in the form of dough mixed in the stirring tank 121. A discharge port opened and closed by the

In the stirring unit 120, the internal temperature of the stirring tank 121 is heated using a heater 122, and the thermoplastic crosslinking agent (A4) is put into the heated stirring bath 121 to liquefy it, and then in the mixing step It is preferable to add the discharged mixed powder and stir while maintaining the temperature.

The crosslinking agent (A4) is for bonding the incombustible material (A1), the heat insulating material (A2), and the talc agent (A3), and has a thermoplastic resin as a main component. Therefore, it is preferable to mix with the minimum content for bonding the incombustible material (A1) and the heat insulating material (A2).

On the other hand, a flame retardant and a flame retardant auxiliary agent for the thermoplastic resin may be added to the crosslinking agent (A4), and it is also possible to additionally mix a UV stabilizer or a weathering stabilizer in order to secure durability for the environment in which the product is used.

The extruder 130 molds the mixture discharged in the stirring step into a sheet (S) shape, and includes an extruder 131 and an extrusion die 134 .

The extruder 131 is an extrusion housing 132 having an inlet and an outlet provided, and the mixture M in the form of a dough introduced through the inlet of the extrusion housing 132 is high-pressured toward the outlet. It is disposed in the extrusion housing 132. It includes an extrusion screw 133, a driving unit that provides a rotational force to the extrusion screw 133.

The extrusion die 134 is also referred to as a 'T-die', and by discharging the mixture M in the form of a high-pressure dough provided from the extruder 131 through a slit between a pair of ribs disposed up and down, the sheet ( S) is to be molded in the form, and has a form elongated in one direction so that the sheet S of a certain width can be molded.

Since most of the mixture M in the form of dough provided to the extrusion unit 130 contains inorganic raw materials, the connection state between the materials may be poor in the process of being discharged from the extrusion die 134 . Therefore, after checking whether the crosslinking agent (A4) is sufficiently mixed in the mixture in the stirring unit 120 , it should be introduced into the extruding unit 130 .

Meanwhile, a plurality of extruders 131 may be connected to the extrusion die 134 . That is, since the extrusion die 134 has a form that is elongated along the width direction of the sheet S, a plurality of extruders 131 spaced apart along the width direction of the sheet S is one extrusion die 134 . ), it is possible to form a sheet (S) of excellent quality without tearing or breaking and having a constant thickness.

The rolling unit 140 is for heating and compressing the sheet S molded by the extruding unit 130 in the thickness direction to form a target thickness, and a plurality of heating rollers spaced apart from each other and arranged side by side at a preset interval. A calendar machine with (141,142,143,144) may be used.

Here, the plurality of heating rollers (141, 142, 143, 144) are disposed at the top and bottom, respectively, and a plurality of driving heating rollers (141, 144) which rotate by receiving power from an external driving source, and the plurality of driving heating rollers (141, 144) It includes a plurality of idle heating rollers 142 and 143 idling, and the diameters of the idle heating rollers 142 and 143 are set to be relatively large compared to the diameters of the driving heating rollers 141 and 144 .

For example, the plurality of heating rollers 141 and 144 may include a pair of first driving heating rollers 141 disposed above and below the sheet S discharged from the extrusion unit 130, the first driving heating rollers ( 141), the first idle heating roller 142 and the second idle heating roller 143 are sequentially disposed on the upper side, and the second driving heating roller 144 disposed above the second idle heating roller 143. may include

That is, the first driving roller 141 is set to have a smaller diameter than the first and second idle heating rollers 142 and 143 so that the first driving heating roller 141 and the sheet S are in line contact to improve the rolling effect. The first and second idle heating rollers 142 and 143 have a larger diameter than that of the first driving heating roller 141 to increase the contact area with the sheet S, thereby improving the heating effect of the sheet S can do it

For example, the final thickness of the sheet S discharged from the rolling unit 140 may be set to 0.5 to 10 mm, and the thickness of the sheet S discharged from the extruding unit 130 may be determined by the rolling unit 140 . In consideration of the rolling performance in may be set to be thicker than the final thickness of the sheet (S).

A backup roller 145 for supporting the load of the heating rollers 141, 142, 143, 144 may be disposed under the plurality of heating rollers 141, 142, 143, 144.

Accordingly, the sheet S discharged from the extruding unit 130 is primarily compressed while passing between the pair of first driving heating rollers 141 , and the upper side of the pair of first driving heating rollers 141 . While passing between the first driving heating roller 141 and the first idle heating roller 142 in a state in close contact with the surface of the first driving heating roller 141 disposed in the second compression, the first idle heating roller While passing between the first idle heating roller 142 and the second idle heating roller 143 in a state of being in close contact with the surface of As it passes between the second driving heating rollers 144, it is compressed fourthly and rolled to a final target thickness.

To this end, it is preferable that the interval between the plurality of heating rollers 141 , 142 , 143 , 144 is set to be gradually narrowed along the conveying direction of the sheet S. In addition, since the thickness of the sheet S is gradually reduced, it is preferable to individually control the rotational speeds of the first driving heating roller 141 and the second driving heating roller 144 .

In addition, the surface temperature of the heating rollers (141, 142, 143, 144) can be controlled to a temperature for optimizing the rolling efficiency in consideration of the physical properties of the sheet (S), each of the heating rollers (141, 142, 143, 144) height adjustment to adjust the interval between It can be configured to make this possible.

As such, in the rolling unit 140 of this embodiment, the diameter of the idle heating rollers 142 and 143 is set to be larger than the diameter of the driving heating rollers 141 and 144, and the idle heating rollers 142 and 143 are provided in plurality, so that the idle heating is performed. Since thermal energy can be sufficiently transmitted to both surfaces of the sheet S in contact with the rollers 142 and 143, respectively, the rolling efficiency and molding quality of the sheet S can be improved.

In addition, when the mixture (M) in the form of dough is extruded and rolled to the final target thickness, the content of the cross-linking agent (A4) is minimized to prevent deterioration of non-combustible performance, and a thin semi-non-combustible insulating sheet (S) can be easily prepared.

The cooling unit 150 is for cooling the sheet (S) discharged from the rolling unit (140), is disposed in a direction transverse to the sheet (S) and sprays a cooling fluid toward the sheet (S). It may include a cooling nozzle 151 and a cooling fluid supply unit (not shown) for supplying a cooling fluid to the cooling nozzle 151, wherein the cooling nozzle 151 is disposed on both sides of the sheet S, respectively. it is preferable

In addition, a plurality of the cooling nozzles 151 may be provided and disposed to be spaced apart along the moving direction of the sheet S, and the plurality of cooling nozzles 151 may be configured to control the injection amount of the cooling fluid, respectively. For example, when the amount of the cooling fluid injected from the plurality of cooling nozzles 151 is set to gradually increase from the upstream cooling nozzle 151 toward the downstream cooling nozzle 151, the sheet S in a high temperature state ) can be prevented from being damaged by thermal shock that occurs when it comes into contact with the cooling fluid.

In addition, the cooling nozzle 151 is such that the middle portion corresponding to the center of the sheet S faces upstream with respect to the traveling direction of the sheet S relative to the end portions corresponding to both sides of the sheet S. can be placed. For example, the cooling nozzle 151 may be formed in a '∧' shape, and a central point may be disposed so as to face an upstream side from the center of the sheet S. When the central portion of the sheet S is first cooled by the cooling nozzle 151 as described above, the temperature difference between the middle portion and the side end of the sheet S can be minimized, thereby preventing damage to the sheet S can do.

On the other hand, the cooling nozzle 151 may include a plurality of injection holes for spraying the cooling fluid toward the seat (S), the injection amount of the cooling fluid in the central portion of the seat (S) at both ends of the sheet (S) It is preferable to adjust the diameter of the injection hole or adjust the spacing of the injection holes so that it is set relatively high compared to the injection amount of the cooling fluid.

6 (a) is a cross-sectional view of the sheet S extruded by the extruding unit 130, and FIG. 6 (b) is a first driving heating roller 141 and a first driving roller 141 in the rolling unit 140. It is a cross-sectional view of the sheet S passed between the idle heating rollers 142, and FIG. 6 (c) is the second idle heating roller 143 and the second driving heating roller of the rolling unit 140 ( 144) is a cross-sectional view of the sheet S.

That is, as shown in (a) of FIG. 6 , the micro-hollow body M constituting the heat insulating material is uniformly distributed inside the sheet S extruded by the extrusion unit 130 . As the sheet (S) is compressed in the thickness direction as shown in FIGS. 6 (b) and (c) while passing through the rolling unit 140, the distance between the micro-hollow bodies (M) is relatively narrowed to form a heat insulating layer. .

Specifically, the thermal insulation performance of the sheet (S) is determined according to the spacing of the micro-hollow bodies (M) constituting the heat insulating material. The distance between the sieves M may be further narrowed.

As described above, in the semi-incombustible insulating sheet manufactured according to this embodiment, a large number of micro-hollow bodies (M) are distributed inside the sheet (S) containing magnesium as a main component, and the sheet (S) by the compressive force applied in the thickness direction As the thickness of the sheet (S) decreases, the spacing between the micro-hollow bodies (M) distributed inside the sheet (S) becomes relatively dense compared to before compression, thereby blocking the heat passage in the thickness direction of the sheet (S). The thermal insulation effect can be further improved.

In particular, according to this embodiment, since the mixture (M) in the form of dough is extruded and then rolled to the final target thickness, the content of the crosslinking agent (A4) included in the raw material is minimized to prevent deterioration in performance against incombustibility and to have a thin thickness. of the semi-non-combustible insulating sheet (S) can be easily manufactured.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented in various types of embodiments within the scope of the appended claims. Without departing from the gist of the present invention claimed in the claims, it is considered to be within the scope of the description of the claims of the present invention to various extents that can be modified by any person skilled in the art to which the invention pertains.

110: mixing part, 111: mixing tank, 112: mixing screw,
120: stirring unit, 121: stirring tank, 122: heater,
123: stirring screw, 130: extruder, 131: extruder,
132: extrusion housing, 133: extrusion screw, 134: extrusion die,
140: rolling unit, 141: first driving heating roller, 142: first idle heating roller,
143: second idle heating roller, 144: second driving heating roller, 145: backup roller,
150: cooling unit, 151: cooling nozzle, A1: non-combustible material,
A2: insulation material, A3: talc agent, A4: crosslinking agent,
M: mixture in the form of dough, S: sheet

Claims (14)

a mixing unit for mixing an inorganic non-combustible material provided in powder form as a raw material and an insulating material provided in a fine hollow powder form;
a stirring unit for heating and stirring the mixture in powder form and the thermoplastic crosslinking agent discharged from the mixing unit;
an extrusion unit for extruding the mixture in the form of dough discharged from the stirring unit into a sheet form; and
It includes; a rolling unit that heats and compresses the mixture in the form of a sheet molded in the extrusion unit in the thickness direction to form a target thickness;
The rolling part includes a first driving heating roller, a first idle heating roller disposed above the first driving heating roller, a second idle heating roller disposed above the first idle heating roller, and the second idle heating roller. Including a second driving heating roller disposed on the upper side,
The sheet discharged from the extruding part is wound around a portion of the surface of the first driven heating roller, the first idle heating roller, the second idle heating roller and the second driven heating roller and is compressed while passing between the adjacent heating rollers. become,
As the sheet is gradually compressed in the thickness direction while passing between the plurality of heating rollers, the distance between the micro-hollow bodies is gradually narrowed so that a micro-hollow body heat insulating layer is formed inside the sheet. . The method of claim 1,
The heat insulating material is a semi-non-combustible heat insulating sheet manufacturing apparatus, characterized in that the main component is aluminum silicate, the diameter of the micro-hollow body consists of 20 ~ 100㎛. The method of claim 1,
The stirring unit includes a stirring tank, a heater for heating the stirring tank, and a stirring screw disposed in the stirring tank, and stirring the mixed powder and the crosslinking agent discharged from the mixing unit under a high-temperature atmosphere to produce a mixture in the form of a dough Semi-non-combustible insulation sheet manufacturing device, characterized in that. delete The method of claim 1,
Semi-non-combustible insulation sheet manufacturing, characterized in that the extruder comprises an extruder for transferring the mixture in the form of dough at high pressure using an extrusion screw, and an extrusion die for discharging the mixture in the form of dough at high pressure provided from the extruder in the form of a sheet Device. 6. The method of claim 5,
A plurality of extruders are provided, and semi-non-combustible insulation sheet manufacturing apparatus, characterized in that they are respectively connected to one extrusion die in a state spaced apart along the width direction of the sheet. delete delete The method of claim 1,
Diameter of the first idle heating roller and the second idle heating roller is set relatively large compared to the diameter of the first driving heating roller semi-non-combustible insulating sheet manufacturing apparatus, characterized in that. delete The method of claim 1,
Semi-non-combustible insulating sheet manufacturing apparatus further comprising; a cooling unit for cooling the sheet discharged from the rolling unit. 12. The method of claim 11,
The cooling unit is disposed in a direction transverse to the sheet and semi-non-combustible insulating sheet manufacturing apparatus, characterized in that it comprises a cooling nozzle for spraying a cooling fluid toward the sheet. 13. The method of claim 12,
The cooling nozzle is a semi-non-combustible heat insulating sheet manufacturing apparatus, characterized in that the intermediate portion corresponding to the center of the sheet is disposed to face upstream with respect to the moving direction of the sheet relative to the end portion corresponding to both sides of the sheet. 13. The method of claim 12,
A plurality of cooling nozzles are provided and are spaced apart along the traveling direction of the sheet, and the injection amount of the cooling fluid is individually controlled by the plurality of cooling nozzles.

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