KR100465384B1 - Manufacture system of flame resistant insulating panel - Google Patents

Abstract

PURPOSE: A manufacturing process system of an incombustible heat insulation panel is provided to bond and process the heat insulation panel at low temperature without cooling systems, and to improve smoothness by manufacturing the incombustible heat insulation panel with polyurethane foam including filler instead of liquid polyisocyanurate foam. CONSTITUTION: A manufacturing process system of an incombustible heat insulation panel comprises a foaming agent supply line(110) feeding the foaming agent as the interior heat insulation material, a catalyst supply line(120) feeding the catalyst as the interior heat insulation material, a polyol powder supply line(130) feeding polyol powder including filler as the interior heat insulation material, a hardening agent supply line(140) feeding the hardening agent as the interior heat insulation material, a mixing system(160) connecting to the foaming agent supply line, the catalyst supply line and the polyol powder supply line and mixing the foaming agent, the catalyst and the polyol powder, an injection head(170) connected to the mixing system and the hardening agent supply line to inject mixture from the mixing system and the hardening agent from the hardening agent supply line to the metal surface materials, and an air supply line(150) supplying air to the foaming agent supply line, the catalyst supply line and the polyol powder supply line.

Description

Manufacture system of flame resistant insulating panel

The present invention relates to a manufacturing process system of a flame retardant insulation panel, and more particularly, its quality is more stable than a liquid polyurethane (or isocyanurate) foam, and has excellent wave and flatness due to shrinkage, and low temperature adhesion. In addition, the present invention relates to a manufacturing process system of a flame-retardant insulation panel using a polyurethane (or isocyanurate) foam containing a filler (powder flame retardant) which does not require a cooling system as an inner heat insulating material.

In general, the insulation panel is used as a material for insulation construction of various buildings, including refrigerated warehouses, industrial buildings, pipes, insulated houses, container boxes and ship interiors, conventionally, polyurethane rigid between the surface material formed of a metal plate, etc. Filling foams (PUR foams) have been commonly used.

However, in the case of the polyurethane rigid foam described above, there is a disadvantage of excellent adhesion, low thermal conductivity, good physical properties and workability, but poor flame retardancy, combustibility, and poor heat resistance.

On the other hand, in accordance with the provisions of Article 61 of the Enforcement Decree of the recently revised Building Act, non-combustible and semi-combustible finishing materials such as walls, ceilings, corridors, and stairs of multi-use facilities, apartment houses, living zone training facilities, and natural training facilities, etc. Since it was revised to be made of fire retardant materials or fire retardant materials, the non-flammability performance tests previously performed only on internal finishing materials were also applied to polyurethane, styrofoam sandwich panels, and the like. It is a reality.

Therefore, recently, a flame retardant insulation panel having a polyisocyanurate foam (PIR foam) having excellent flame retardancy and combustibility as well as heat resistance has been developed and provided.

In particular, Japanese Patent Publication No. 46-4591 discloses a modified polyisocyanurate foam in which an organic polyisocyanate and a polyol are used as a heat insulating material by using a trimerization catalyst and a carbodiimidization catalyst in the presence of a blowing agent. A manufacturing method is known and Korean Patent No. 278,365 discloses a technique for a polyisocyanurate foam in which a polyol obtained by adding propylene oxide and ethylene oxide to polymeric MDI and terephthalic acid and a heat insulating material using the same are disclosed.

However, the polyisocyanurate foam has a problem in that the flame retardancy, the flammability, and the heat resistance, although better than the PUR foam, are not excellent in safety.

Accordingly, the applicant of the present invention has been continuously studying due to the above problems, as a result, an excessive amount of isocyanate is added so that the equivalent ratio of polyol and isocyanate is 1: 2.0 to 1: 4.0, and a flame retardant and a trimerization catalyst are added. The flame retardant insulation panel (Patent Registration No. 370470) using the polyisocyanurate foam having excellent flame retardancy and physical properties prepared by the application has been registered.

As described above, in the flame retardant insulation panel filed and registered by the applicant of the present invention, PIR foam used as an internal insulation of the flame retardant insulation panel is superior in flame resistance and combustibility as well as heat resistance, and thermal insulation is higher than conventional PUR foam. Of course, there is a good shrinkage safety properties at low temperatures.

Therefore, in recent years, flame retardant insulation panels using the above-described PIR foam as an internal insulation has been widely used, such as building insulation.

On the other hand, the above-mentioned PIR and PUR foam are all made of a polyol of one of the raw materials in a liquid state, the liquid polyol is mixed with a blowing agent, a catalyst, a curing agent is smoothly mixed.

Figure 1 schematically shows the operating relationship of the manufacturing process system of the flame-retardant insulation panel using the liquid PIR foam as an internal insulation as described above.

As shown, the manufacturing process system 10 of the flame-retardant insulation panel using the conventional PIR foam as the inner insulation is largely, the blowing agent supply line 20, the catalyst supply line 30, the liquid polyol supply line 40 ) And a curing agent supply line 50.

At this time, the blowing agent, the catalyst, and the liquid polyol passing through the blowing agent supply line 20, the catalyst supply line 30, and the liquid polyol supply line 40, respectively, are mixed in a mixing system 70. The injection head 90 is supplied, and the curing agent is directly supplied to the injection head 90.

The supply stages of the respective supply lines 20, 30, 40, and 50 will be described as follows.

First, the blowing agent is supplied from the storage tank 22 to the mixing system 80 by the gear pump 24, and the supply amount is measured between the gear pump 24 and the mixing system 80, and the supply amount is measured in the main system. A meter 26 is installed to allow display (not shown).

In addition, the catalyst is supplied from the storage tank 32 to the mixing system 80 by the gear pump 34, and the supply amount is also measured between the gear pump 34 and the mixing system 80, and the supply amount is supplied to the main system. The meter 36 is installed to be displayed on.

On the other hand, the liquid polyol is supplied from the storage tank 42 to the stirring filter 44 to be stirred, and the fixed amount set by the metering pump 46 is supplied to the gear pump 48, and the gear pump ( 48) to the mixing system 70.

As such, the blowing agent, the catalyst, and the liquid polyol are collected in the mixing system 70 through the respective supply lines 20, 30, and 40 to be mixed.

The blowing agent, catalyst, and liquid polyol mixture mixed in the mixing system 70 is again supplied to the injection head 90 through the meter 80 to measure the supply amount so that the supply amount is displayed in the main system.

On the other hand, the curing agent is supplied from the storage tank 52 to the stirring filter 54, the stirring is performed, the fixed amount set by the metering pump 56 is supplied to the gear pump 58, this gear pump 58 The curing agent supplied by is fed directly to the injection head 90 through the meter 60 to measure the feed amount and to display the feed amount in the main system.

Therefore, in the injection head 90, a blowing agent, a catalyst, and a liquid polyol mixture are sprayed between the surface materials in a mixed state with the curing agent and supplied to the internal insulation of the flame retardant insulation panel.

In this case, the operation of each of the supply lines 20, 30, 40, 50 is automatically performed by electronic control, and in particular, the meter 26, 36, which is installed in each supply line 20, 30, 40, 50, 60, 80 by the supply amount is confirmed in real time, it is possible to easily check the presence or absence of abnormality.

However, the production process system of the flame-retardant insulation panel using the PIR foam having the above-described configuration as an internal insulation, by using a liquid polyol stock solution, the adhesion at low temperatures is not good, and thus the work must be performed at a high temperature. It requires a separate cooling system, there was a problem that the surface wave and flatness is not good.

That is, the flame retardancy is excellent, but the physical properties and productivity of other products were disadvantageous.

Accordingly, the applicant of the present invention tried to manufacture a flame-retardant heat insulation panel using a polyol of the powder added filler in place of the liquid polyol stock solution due to the above problems, but there are various problems in the conventional manufacturing process system Found.

That is, since the filler is added to the polyol and supplied in a powder state, a problem occurs in that mixing with the blowing agent and the catalyst is not performed smoothly in the mixing system.

In addition, the polyol of the powder is supplied to the mixing system by the metering pump and the gear pump passing through the stirring filter, there was also a problem that the polyol of the powder is sandwiched between the gears in the gear pump is not smooth supply.

Accordingly, the present invention has been made in order to solve the problems described above, the quality is more stable than the liquid polyisocyanurate foam, the wave and flatness due to shrinkage, excellent low-temperature adhesive strength, fast process speed In addition, an object of the present invention is to provide a manufacturing process system for a flame-retardant heat insulation panel using a polyurethane (or isocyanurate) foam having an unnecessary filler as an internal insulation.

That is, the polyol of the powder to which the filler is added is smoothly supplied to the mixing system, and the polyurethane (or isosi) to which the filler is added so that the polyol of the powder so supplied is smoothly mixed in the mixing system with the blowing agent and the catalyst. Anurate) It is an object to provide a manufacturing process system of a flame-retardant insulation panel using the foam as an internal insulation.

1 is a schematic view showing a manufacturing process system of a flame retardant insulation panel using a conventional PUR foam and PIR foam as an internal insulation.

Figure 2 schematically shows a manufacturing process system of a flame-retardant insulation panel using a filler-added polyurethane (or isocyanurate) foam (PIR foam) according to the present invention as an internal insulation.

<Description of Symbols for Main Parts of Drawings>

100: manufacturing process system 110: blowing agent supply line

120: catalyst supply line 130: powder polyol supply line

140: curing agent supply line 150: air supply line

152: air storage tank 160: mixing system

The present invention for achieving the above object, in the process system for manufacturing a flame-retardant insulation panel is filled with the inner heat insulating material between the surface material of the metal material, foaming agent supply line supplied with a foaming agent which is one of the raw materials forming the internal heat insulating material and; A catalyst supply line to which a catalyst which is one of the raw materials constituting the internal insulation is supplied; A powder polyol supply line to which a polyol of powder to which filler is added, which is one of the raw materials of the internal insulation material, is supplied; A curing agent supply line to which a curing agent which is one of raw materials constituting the internal insulation is supplied; A mixing system connected to the blowing agent supply line, the catalyst supply line, and the polyol supply line to mix the polyols of the blowing agent, the catalyst and the powder, respectively, supplied from the supply lines; An injection head connected to the mixing system and the curing agent supply line and injecting the mixture supplied from the mixing system and the curing agent supplied from the curing agent supply line between the surface material of the metal material; It characterized in that it comprises an air supply line for supplying air to the blowing agent supply line, the catalyst supply line and the powder polyol supply line, respectively.

In addition, the blowing agent supplied through the blowing agent supply line, the catalyst supplied through the catalyst supply line, and the polyol of the powder supplied through the polyol supply line of the powder are mixed in a mixing system and then supplied to the injection head. And, the curing agent supplied through the curing agent supply line is characterized in that is supplied directly to the injection head.

In addition, the blowing agent supply line, the blowing agent storage tank in which the blowing agent is stored, the piston pump for supplying the blowing agent from the blowing agent storage tank to the mixing system, and the amount of blowing agent supplied by the piston pump to measure the supply amount It is characterized by consisting of a meter to be displayed on the main system.

In this case, the air of the air supply line is supplied to the piston pump of the blowing agent supply line is characterized in that the foaming agent is configured to be more smoothly supplied to the mixing system.

The catalyst supply line may further include a catalyst storage tank in which the catalyst is stored, a piston pump for supplying the catalyst from the catalyst storage tank to the mixing system, and a supply amount of the catalyst supplied by the piston pump. It is characterized by consisting of a meter to be displayed on the main system.

In this case, the air of the air supply line is supplied to the piston pump of the catalyst supply line is characterized in that the catalyst is configured to be more smoothly supplied to the mixing system.

The powder polyol supply line may include a storage tank in which the polyol of the powder to which the filler is added is stored, a stirring filter to stir and filter the polyol of the powder supplied from the storage tank, and the stirring filter. And a metering pump for supplying the polyol of the powder to the mixing system by the set amount, and a meter for measuring the supply amount of the polyol of the powder supplied by the metering pump to display the supply amount in the main system.

In this case, it is characterized in that the air of the air supply line is supplied to the metering pump of the polyol supply line of the powder so that the polyol of the powder is more smoothly supplied to the mixing system.

On the other hand, the curing agent supply line, the storage tank in which the curing agent is stored, the stirring filter for stirring and filtering the curing agent supplied from the storage tank, and the curing agent passed through the stirring filter is supplied to the injection head by the set amount Metering pump and to measure the amount of supply of the curing agent supplied by the metering pump characterized in that consisting of a meter so that the supply amount is displayed on the main system.

In addition, the air supply line is connected to the mixing system so that the air is supplied to the mixing system so that the polyol of the blowing agent, the catalyst and the powder supplied to the mixing system is more smoothly mixed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view schematically illustrating a manufacturing process system of a flame retardant insulation panel using a filler-added polyurethane (or isocyanurate) foam as an inner insulation.

As shown, the manufacturing process system 100 of the flame-retardant heat insulation panel using the polyurethane (or isocyanurate) foam to which the filler according to the present invention as an internal insulation, largely, the blowing agent supply line 110, In addition to the catalyst supply line 120 and the filler-added polyol supply line 130 and the curing agent supply line 140, the air supply line 150 is configured to be additionally installed.

The air supply line 150 supplies air to the blowing agent supply line 110, the catalyst supply line 120 and the powder polyol supply line 130, respectively, which will be described later.

First, the blowing agent supply line 110, the blowing agent storage tank 112, the piston pump 114 for supplying the blowing agent of the blowing agent storage tank 112 to the mixing system 160, and the piston pump 114 It is composed of a meter 116 to measure the supply amount of the blowing agent supplied by the display to be displayed on the main system.

In the manufacturing process system of the flame-retardant insulation panel using the liquid PIR foam as the inner heat insulating material, the means for supplying the foaming agent to the mixing system in the foaming agent supply line is used as a gear pump, but the gear pump is not excellent in the supply force of the piston in the present invention. The pump 114 is applied.

At this time, the air supply line 150 is connected to the piston pump 114 to supply air, thereby more reliably supplying the blowing agent.

In addition, the catalyst supply line 120 includes a catalyst storage tank 122 in which the catalyst is stored, a piston pump 124 for supplying the catalyst from the storage tank 122 to the mixing system 160, and the piston pump. It consists of a meter 126 which measures the supply amount of the catalyst supplied by 124 and displays the supply amount in the main system.

Here, in the manufacturing process system of the flame-retardant insulation panel using the conventional liquid PIR foam as the inner insulation material, the means for supplying the foaming agent to the mixing system in the foaming agent supply line as a gear pump, but the gear pump is not excellent in the supply power of the present invention In the piston pump 124 was applied.

At this time, the air supply line 150 is connected to the piston pump 124, the air is supplied, the catalyst is more surely supplied.

On the other hand, the filler polyol supply line 130, the stirring tank for stirring and stirring the storage tank 132 in which the powder polyol is stored and the polyol of the powder supplied from the storage tank 132 ( 134, a metering pump 136 for supplying the polyol of the powder passing through the stirring filter 134 to the mixing system 160 by a set amount, and the polyol of powder supplied by the metering pump 136 It is composed of a meter 138 to measure the supply amount so that the supply amount is displayed in the main system.

At this time, the air supply line 150 is connected to the metering pump 136 and the air is supplied, thereby more reliably supplying the powder polyol.

As such, the blowing agent, the catalyst, and the polyol of the powder are collected in the mixing system 160 through the respective supply lines 110, 120, and 130 to be mixed.

At this time, the air supply line 150 is also connected to the mixing system 160 to supply air, thereby more reliably mixing the polyol of the powder, the blowing agent and the catalyst.

That is, the air supply line 150 is a piston pump 114 of the blowing agent supply line 110, a piston pump 124 of the catalyst supply line 120, and a metering pump of the powder polyol supply line 130 ( Each of the pumps 114, 124, and 136 is connected to each of the pumps 136 to supply the air to the mixing system 160 more smoothly.

In addition, the air supply line 150 is also connected to the mixing system 160 to supply air, thereby serving to ensure the mixing of the polyol of the powder, the blowing agent and the catalyst more reliably.

The polyol mixture of the blowing agent, the catalyst, and the powder mixed as described above is supplied to the injection head 170.

On the other hand, the curing agent supply line 140, a storage tank 142, the curing agent is stored, a stirring filter 144 for stirring and filtering the curing agent supplied from the storage tank 142, and the stirring filter 144 Metering pump 146 for supplying the curing agent passed through the injection head 170 by the set amount, and a meter for measuring the supply amount of the curing agent supplied by the metering pump 146 so that the supply amount is displayed on the main system ( 148).

Thus, the curing agent is supplied from the storage tank 142 to the stirring filter 144 is agitated, the set amount of the curing agent passed through the stirring filter 144 is sprayed by the metering pump 146 It is supplied to the head 170, wherein the curing agent supplied by the metering pump 146 is supplied to the injection head 170 through the meter 148 to measure the supply amount so that the supply amount is displayed in the main system.

Accordingly, in the injection head 170, a polyol mixture of a blowing agent, a catalyst, and a powder is mixed with a curing agent to form a polyurethane (or isocyanurate) foam, and is sprayed between the surface materials of the panel in this state, so that the interior of the flame-retardant insulating panel It is formed of insulation.

In this case, the operation of each of the supply lines (110, 120, 130, 140, 150) is automatically performed by electronic control, in particular, by the meter (116, 126, 138, 148) installed in each of the supply lines (110, 120, 130, 140) in real time, to facilitate the presence of abnormalities You can check it.

As described above, the polyisocyanurate foam to which the filler is prepared by the manufacturing process system 100 according to the present invention is added, and the characteristics of the conventional PUR foam and PIR foam are as follows.

Table 1

PUR (Liquid phase) PIR Flame Retardant Panel (with Filler) Flame retardant Self-esteem Great Great core density 36-38 43 ~ 47 36-38 Low temperature adhesion Good Somewhat Good Processing temperature condition 40 ~ 50 ℃ 50 ~ 60 ℃ 40 ~ 50 ℃ Process speed 6 ~ 7m / min 4 ~ 4.5m / min 6 ~ 7m / min Cooling system Unnecessary Required Unnecessary Surface Wave and Flatness Good Somewhat Good Remarks General purpose Excellent flame retardancy, but disadvantages of other physical properties and productivity Various applications are possible

As shown in Table 1 above, in the case of the polyurethane (or isocyanurate) foam to which the filler according to the present invention is added, the flame retardancy is excellent, as well as the low temperature adhesive strength, and thus the processing temperature may be low, thereby cooling The advantage is that no system is required.

In addition, surface wafers and flatness are better than conventional liquid PIR foams.

Applicant of the present invention is a flame retardant class 3 conformity test of the flame retardant insulation panel made of the polyurethane (or isocyanurate) foam with the filler prepared by the manufacturing process system 100 as the internal insulation material As a result of the request, the following suitability decision was made.

Table 2 Surface Test Results

Exam name Surface test Criteria Test body number One 2 3 Blank Size (mm) 220 × 220 220 × 220 220 × 220 Thickness (mm) 50 50 50 Weight (g) 666.7 666.4 666.0 Post test loss (g) 16.5 19.2 19.3 Exhaust temperature and smoke Temperature time area (℃ × min) Within 3 minutes none none none Not exceed After 3 minutes 0 0 0 350 or less Coefficient of smoke per unit area (CA) 4.0 7.0 10.0 120 or less Afterglow time (sec) 15 22 25 Less than 30 Melting over the entire thickness 15 22 25 No Crack width (mm) 0 0 0 Less than thickness * 1/10 Harmful deformations on fire No Judgment fitness fitness fitness -

(Testing station: Korea Institute of Control Testing, test method: based on KS F 2271-1998)

For reference, the coefficient of smoke per unit area means the value of the relative instrument when the exhaust gas passes through the optical measuring device.

(Table 3) Gas Hazard Test)

Exam name Gas Hazard Test Criteria Test body number One 2 Blank Size (mm) 220 × 220 220 × 220 Thickness (mm) 50 50 Weight (g) 670.2 668.9 Weight loss after test (g) 25.3 27.6 mouse Pedigree, gender ICR, female ICR, female Average weight (g) Test box temperature (℃) Early 27.6 28.2 Best 31.7 32.3 Mouse average behavior stop time 13 minutes 10 seconds 09 minutes 58 seconds Standard Deviation 00 minutes 31 seconds 00 minutes 21 seconds Mouse pause time 12 minutes 39 seconds 09 minutes 37 seconds More than 9 minutes Judgment fitness fitness -

(Testing station: Korea Institute of Control Testing, test method: based on KS F 2271-1998)

As described above, the flame-retardant insulation panel using the polyurethane (or isocyanurate) foam with the filler as the internal insulation passed the flame retardant class 3 test.

As described above, according to the present invention, a process system for manufacturing a flame-retardant insulation panel using a polyurethane (or isocyanurate) foam with filler added as an internal insulation instead of the conventional liquid polyisocyanurate foam By providing, the flame retardancy is equally superior to the liquid polyisocyanurate foam, as well as excellent low temperature adhesion, and thus the processing temperature can be lowered, there is no need for a cooling system, and also good surface wafer and flatness There is a very useful effect of providing flame retardant insulation panels.

Claims (10)

In the process system for manufacturing a flame-retardant insulation panel is filled with an internal insulation between the surface material of the metal material, A foaming agent supply line 110 to which a foaming agent which is one of the raw materials constituting the internal insulation is supplied; A catalyst supply line 120 to which a catalyst which is one of the raw materials constituting the internal insulation is supplied; A powder polyol supply line 130 to which a polyol of powder to which filler is added, which is one of the raw materials of the internal insulation material, is supplied; A curing agent supply line 140 to which a curing agent which is one of raw materials constituting the internal insulation is supplied; The mixing system 160 connected to the blowing agent supply line 110, the catalyst supply line 120, and the polyol supply line 130 to mix the polyols of the blowing agent, the catalyst and the powder supplied from the supply lines 110, 120, and 130, respectively. and; An injection head connected to the mixing system 160 and the curing agent supply line 140 to inject a mixture supplied from the mixing system 160 and a curing agent supplied from the curing agent supply line 140 between the surface material of the metal material ( 170); Manufacture of flame-retardant insulation panels comprising a; blowing agent supply line 110, the catalyst supply line 120 and the air supply line 150 for supplying air to the powder polyol supply line 130, respectively Process system. delete The method of claim 1, The blowing agent supply line 110, a blowing agent storage tank 112, the blowing agent is stored, a piston pump 114 for supplying the blowing agent from the blowing agent storage tank 112 to the mixing system 160, and the piston pump A manufacturing process system for a flame-retardant insulation panel, characterized in that consisting of a meter (116) for measuring the supply amount of the blowing agent supplied by the 114 so that the supply amount is displayed in the main system. The method according to claim 1 or 3, The air of the air supply line 150 is supplied to the piston pump 114 of the blowing agent supply line 110, the production of flame-retardant insulation panel, characterized in that the foaming agent is configured to more smoothly supply to the mixing system 160. Process system. The method of claim 1, The catalyst supply line 120 includes a catalyst storage tank 122 in which a catalyst is stored, a piston pump 124 for supplying a catalyst from the catalyst storage tank 122 to the mixing system 160, and the piston pump. A process for manufacturing a flame retardant insulation panel, characterized in that it comprises a meter (126) for measuring the supply amount of the catalyst supplied by (124) so that the supply amount is displayed on the main system. The method according to claim 1 or 5, The air of the air supply line 150 is supplied to the piston pump 124 of the catalyst supply line 120 to manufacture the flame retardant insulation panel, characterized in that the catalyst is configured to be more smoothly supplied to the mixing system 160 Process system. The method of claim 1, The powder polyol supply line 130 is a storage tank 132 in which the polyol of the powder to which the filler is added is stored, and a stirring filter 134 for stirring and filtering the polyol of the powder supplied from the storage tank 132. And a metering pump 136 for supplying the polyol of the powder that has passed through the stirring filter 134 to the mixing system 160 by a set amount, and the polyol of the powder supplied by the metering pump 136. The manufacturing process system of the flame-retardant insulation panel, characterized in that consisting of a meter (138) to measure the supply amount of the supply to be displayed on the main system. The method according to claim 1 or 7, The air of the air supply line 150 is supplied to the metering pump 136 of the polyol supply line 130 of the powder so that the polyol of the powder is configured to be more smoothly supplied to the mixing system 160 Insulation panel manufacturing process system. The method of claim 1, The curing agent supply line 140, a storage tank 142 for storing the curing agent, a stirring filter 144 for stirring and filtering the curing agent supplied from the storage tank 142, and the stirring filter 144 The metering pump 146 for supplying the curing agent passed through the injection head 170 by the set amount and the amount of the curing agent supplied by the metering pump 146 is measured so that the supply amount is displayed on the main system. Manufacturing process system of a flame-retardant insulation panel, characterized in that consisting of a meter (148). The method of claim 1, Flame-retardant insulation panel characterized in that the air supply line 150 is connected to the mixing system 160 is supplied air so that the polyol of the blowing agent, catalyst and powder supplied to the mixing system 160 is more smoothly mixed Manufacturing process system.