KR20160112290A - Manufacturing apparatus for insulation and flame retardants of polystyrene foam - Google Patents

Abstract

The present invention relates to an apparatus for preparing a highly insulating and flame-retardant polystyrene foam and, more specifically, to an apparatus for preparing a highly insulating and flame-retardant polystyrene foam, comprising: a coating and transferring simultaneous apparatus for simultaneously coating and transferring a highly insulating or flame-retardant powder on a surface of the external circumference of a foam particle shaped polystyrene foam; an agitation apparatus for uniformly coating a highly insulating or flame-retardant powder on the surface of the polystyrene foam; a highly insulating and flame-retardant polystyrene foam preparation apparatus, sequentially composed of the coating and transferring simultaneous apparatus; an input unit for, after a polystyrene raw material is previously foamed in a foam particle shape, putting the foam particle shaped polystyrene foam to an inlet side of the coating and transferring simultaneous apparatus; and an impregnation unit for, after the highly insulating or flame-retardant powder is impregnated with an adhesive liquid, putting the impregnated powder to the inlet side of the coating and transferring simultaneous apparatus. In the conventional art, a transferring apparatus and a coating apparatus are separately formed, causing the complication of the work and the increase in production costs. In order to solve these problems, the present invention provides an apparatus for simultaneously performing transferring and coating, and further provides an apparatus for coating a highly insulating or flame-retardant powder on a surface of the foam particles, thereby providing an apparatus for preparing highly insulating and flame-retardant polystyrene foam. In order to prepare a highly insulating and flame-retardant polystyrene foam, a highly insulating material or a flame-retardant material is uniformly coated on a surface of foamed beads, and this work process is simplified, and thus a highly insulating and flame-retardant polystyrene foam can be obtained.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for manufacturing high-thermal-insulating and flame-retardant foamed styrofoam materials,

The present invention relates to an apparatus for producing a foamed styrofoam material having high heat insulation and flame retardancy, and more particularly, to a coating and conveying system for simultaneously transferring heat-resistant or flame retardant powder to the outer peripheral surface of the foamed styrofoam, An apparatus for manufacturing an adiabatic and flame-retardant foamed foamed material in which a stirring device for uniformly coating a surface of a styrofoam with a heat insulating or flame retardant powder,

An injector for previously foaming the polystyrene raw material in the form of expanded particles and injecting it into the inlet side of the coating and conveying apparatus of the manufacturing apparatus;

And an impregnation unit for impregnating the adhesive or heat insulating or flame-retardant powder into the adhesive liquid and then introducing the adhering or flame-retardant powder into the inlet of the simultaneous coating and conveying apparatus of the apparatus for manufacturing a foamed styrofoam material. .

Generally, in general houses, the heat loss through the structure is the largest, and the advantage of the environmental aspect of the insulation through the opening and the immersion is that the indoor temperature is kept constant and the moisture penetration is prevented, Thereby preventing the occurrence of damages to the finish material, and the economic advantage is that it reduces the initial cost of the heating and cooling equipment and saves the cooling and heating energy costs.

Measures to prevent heat loss are not limited to insulation. In a residential environment, it is necessary to use appropriate insulation materials in accordance with many conditions such as airtightness, dew condensation, heat exchange, etc., so that a pleasant environment can be maintained.

Insulation materials or flame retardant materials are classified into inorganic materials, organic materials, metallic materials and animal and animal materials according to their materials, and they are classified into fiber type, bubble type, reflection type and porous type.

When the thickness of the insulation is constant, the insulation performance depends on the thermal conductivity. When the water is absorbed, the thermal conductivity is suddenly increased and the function of the insulation is lost. Therefore, when the insulation is selected, the thermal conductivity is low and the water absorption is low. It is easy to carry and handle, and it should be free from twisting and aging even when it is used for a long time with uniform quality.

As an insulating or flame-retardant material widely used in various fields as a material satisfying the above-mentioned conditions, EPS foam materials, which are generally bubble-type heat insulating materials or flame retardant materials of organic materials, have been widely used. These EPS foam materials are used as intermediate insulation or flame retardant materials and are generally manufactured as sandwich panel sandwiched between galvanized steel sheets for painting, which is economical, excellent in workability, excellent in waterproofing, moisture proofing and insulation, It is not only widely used as general insulation or flame retardant building materials together with glasswool panels, but also used for various purposes in ordinary life.

The EPS foam insulation or flame retardant is produced for the purpose of heat insulation or flame retardation under the condition of use temperature of 70 ° C or less. The foam molded product is heated by using beads or additives modified by beads, A bead method in which the material is aged for a suitable period of time, filled in a plate-shaped mold, heated again and fused by secondary foaming, and extruded by a method in which the raw material is heated and melted and continuously extruded and foamed.

In the bead method, the particles on the surface are firmly fused to form a flat surface, and the extrusion method is composed of a plurality of uniform fine bubbles, and the surface forms a flat surface.

In this method, it is difficult to control the time for impregnation by mixing the thermosetting resin and the curing agent, and at the same time, it is difficult to adjust the time for impregnation due to the chemical reaction, and since the additive materials including the insulating material impregnated between the particles of the polystyrene foam and the particles are not uniformly distributed, Is not completely ensured.

In order to uniformly impregnate the foamed polystyrene foam with a coating agent as a coating agent, the coating agent is allowed to permeate randomly into the pores between the porous article particles by a forced method such as vacuum suction, and then, There is a method of uniformly dispersing the coating agent permeated between the porous article particles. However, such a method has a problem that the impregnation time becomes long and a large amount of polystyrene foam can not be applied even during the inhalation process, It is difficult to dry the flame retardant impregnated in the flame retardant, and thus the drying time is relatively long.

Korea Patent 10-825203 Korea Patent 10-542050 Korea Patent 10-699350

The foamed polymer is obtained by foaming the raw material and then injecting the foam granules into a molding machine and compressing at a high temperature and spraying the steam. The foamed polymer is used in a variety of applications such as packaging, pipes and tubes, garment care, construction and insulating materials such as foam sheets, films, profiles and slabs In particular, EPS foam materials are currently used as core materials for refrigerators, coolers, trucks, trains, buildings, roof and housing insulation, and multi-layered panels.

These EPS foam materials are susceptible to adiabatic or flame retardant, so that there is an increasing demand to improve them into high thermal insulation or flame retardant foam materials. In addition, there is a growing need for the development of heat-insulating or flame retardant styrofoam with reduced production costs and excellent production efficiency.

In order to impart fire resistance in EPS products, brominated organic compounds have been used in foamed and non-expanded polystyrene compositions. The major brominated aliphatic compounds available on the market among the various brominated organic flame retardants are utilized with vinyl aromatic polymer foams. (1,2-dibromomethyl) cyclohexane, BCL-462, Albemarle is the most commonly used in expanded polystyrene It is a conventional flame retardant.

The EPS foam material for thermal insulation or flame retardancy by the conventional coating method is prepared by coating an insulating or flame retardant solution on a raw material to give heat insulation or flame retardancy, and foaming the raw material followed by drying and molding.

Therefore, the process of mixing EPS foam beads with heat insulation or flame retardant constitutes one step in the manufacturing process of expanded polystyrene. If the quality characteristic of the manufactured product is not lowered while reducing any one step in the stepwise manufacturing process, it will be expected that the manufacturing cost is reduced and the productivity is improved due to the reduction of the working process.

On the other hand, the state in which the heat insulating or flame retardant applied to the EPS foam bead is adhered to the bead surface is an important parameter for the heat insulating performance of the expanded polystyrene foam material. In the conventional EPS manufacturing process for heat insulation or flame retardancy, The process of drying the EPS foamed beads which were coated, secondary foamed and adhered or flame retarded, was carried out in a drying chamber supplied in one line.

The conditions for drying the raw material are determined by the time for which the raw material stays in the drying chamber, the temperature condition, and the like.

Therefore, in order to control the drying time of the raw material supplied from one line, it is necessary to adjust the amount of extrusion of the raw material in the drying chamber, It has been dependent on adjusting the amount or increasing the drying temperature.

However, if the amount of extrusion of the feed screw is controlled, the proper raw material is not supplied and the productivity is lowered. The method of raising the drying temperature in the limited supply line in the drying chamber is effective in improving the heat insulating performance of the expanded polystyrene foam material by drying It is hard to expect.

The present invention provides a device for simultaneously foaming an EPS raw material, coating a secondarily adiabatic or flame-retardant material, and transferring the EPS raw material, and it is characterized in that, in the process of transferring foamed beads, The present invention provides an apparatus for manufacturing an adiabatic and flame-retardant foamed polystyrene foam material in which EPS foamed beads are coated with heat insulation or flame retardant at the same time of conveying, thereby eliminating the step of separately stirring the foamed raw material and heat insulating or flame retardant materials .

The object of the present invention is to improve the productivity by simplifying the manufacturing process of the adiabatic or flame-retardant styrofoam while simultaneously carrying out the step of coating the surface of the foamed raw material with the adiabatic or flame retardant and the conveying step, A method of manufacturing a foamed polystyrene foam material by applying a heat insulating or flame retardant material to a surface of a foamed bead, transporting and drying the foamed bead, and introducing an adiabatic or flame retardant material containing the adhesive into the pipe of the feed screw, And to provide a device for uniformly coating an adiabatic or flame retardant material on a raw material through an agitator and molding the same.

The present invention relates to a device for transferring an EPS foamed bead and a device for separately stirring an adiabatic or flame retardant material by inserting heat-insulating or flame-retardant materials in the course of feeding the EPS foam bead and coating the foam bead with heat insulation or flame- It is possible to simplify the manufacturing process by simplifying the integrated device, thereby improving the productivity,

Flame-retardant styrofoam material which is capable of uniformly coating heat-insulating or flame-retardant materials on individual foam beads, thereby maximizing the heat-insulating or flame-retarding effect of the styrofoam material.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an apparatus for producing a high thermal insulation and flame-retardant foamed foamed material of the present invention. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

According to the present invention,

A simultaneous coating and conveying device 101 for coating and transferring heat-insulating or flame-retardant powder to the outer peripheral surface of the foamed styrofoam, an agitating device 102 for uniformly coating the surface of the styrofoam with heat-insulating or flame- Flame-retardant foamed styrofoam material in which a coating and transferring device 101 are sequentially formed,

An injector 15 for previously foaming the polystyrene raw material in the form of expanded particles and injecting it into the inlet side of the simultaneous coating and conveying apparatus 101 of the manufacturing apparatus 100;

And an impregnator (10) for impregnating the adhesive liquid with the heat insulating or flame-retardant powder and then injecting it into the inlet side of the simultaneous coating and conveying apparatus (101) of the manufacturing apparatus (100) To a manufacturing apparatus for a foamed styrofoam material.

The rotary shaft 40 of the simultaneous coating and conveying apparatus 101 of the present invention is formed of a conveying screw to form a conveying coating unit 20 in which an input material is conveyed and simultaneously coated,

A plurality of stirring rods 31 are mounted on the rotating shaft 40 and a plurality of stirring rods 31 are mounted on the inner side of the outer cylinder 35. The outer cylinder 35 is rotatably mounted on the rotating shaft 40 And a plurality of the transfer coating unit 20 and the agitating unit 30 are sequentially arranged as needed. The agitating unit 30 may include a plurality of agitating units 30, as shown in FIG.

Characterized in that the heat insulating powder is black.

The manufacturing apparatus will be described in detail as follows.

The present invention comprises a charging device 15 for foaming the polystyrene raw material in the form of expanded particles and then injecting the same into the coating and conveying apparatus 101, A separate particle bubbling device may be installed before forming the raw material into foam beads and then introduced into the apparatus 101. Alternatively, raw material particles may be formed into foam beads by a separate foaming apparatus at another place It may be transported to the inside of the apparatus 101. [

The impregnator 10 is provided to impregnate the adhesive liquid with the adiabatic or flame retardant powder so that the adhesive liquid can sufficiently be contained in the outer periphery of the heat insulating or flame retardant powder, To the inside.

In another embodiment,

Wherein the adhesive liquid is first introduced through an impregnator (10) for input to the inlet side of the simultaneous coating and conveying apparatus (101) of the manufacturing apparatus (100), and secondarily heat insulating or flame retardant powder is introduced will be.

This is because the adhesive liquid previously injected into the coating and conveying synchronous device 101 is introduced and an adhesive film is formed on the surface of the foamed beads, and the adiabatic or flame retardant powder is secondly injected into the adhesive film.

And coating the outer peripheral surface of the foamed styrofoam charged in the simultaneous coating and transferring apparatus 101 with heat-insulating or flame-retardant powder and transferring the same at the same time.

The stirrer 102 is added in order to more uniformly coat the styrofoam passed through the coating and conveying apparatus 101 with the heat insulating or flame retardant powder.

Styrofoam having passed through the agitating device 102 is added to the simultaneous coating and conveying device 101 so that the conveying and coating can be performed at the same time so as to pass through the outlet of the manufacturing device 100.

Usually, the foamed raw material is about 6 mm, and the heat-insulating or flame-retarded powder is about 4 μm in size. The heat-insulating or flame-retarded powder adhered with the adhesive is uniformly coated on the surface of the foamed raw material while stirring and conveying simultaneously.

The inside of the manufacturing apparatus 100 will be described in detail as follows.

The shape of the conveying screw of the conveying unit 20 is intended to smoothly convey the input material in the conveying direction by being mounted on the rotating shaft 40. The stirring rod 31 of the stirring unit 30 is rotated in an arbitrary irregular angular direction For the purpose of stirring the heat-insulating or flame-retardant powder having the adhesive liquid adhered uniformly on the surface area of the foamed beads.

The outer tube 35 of the outer case corresponding to the rotating shaft 40 of the stirring portion 30 of the stirring device 102 rotates in a direction opposite to the rotating shaft 40 of the stirring portion 30. [ This is intended to promote a more uniform coating of the heat-insulating or flame-retardant powder on the foamed beads.

In another embodiment, a plurality of the transfer part 20 and the agitating part 30 are sequentially formed to achieve more uniform coating.

The heat-insulating or flame-retarded expanded particles that have been completed through such a device are put into a conventional block molding machine, and the foam molding is completed by a general molding method in which steam is injected while being compressed at a high temperature.

The hue of the heat-insulating or flame-retardant powder can be arbitrarily selected, and black can be selected as the hue representing the heat-insulating styrofoam material.

10: impregnator 15: injector
20: Transfer coating part 30: Agitation part
31: stirring rod 35: outer tube
40:
100: Apparatus for manufacturing high thermal and flame-retardant foamed styrofoam materials
101: Coating and conveying synchronous device 102: Stirring device

Claims (4)

A simultaneous coating and conveying device 101 for coating and transferring heat-insulating or flame-retardant powder to the outer peripheral surface of the foamed styrofoam, an agitating device 102 for uniformly coating the surface of the styrofoam with heat-insulating or flame- Flame-retardant foamed styrofoam material in which a coating and transferring device 101 are sequentially formed,
An injector 15 for previously foaming the polystyrene raw material in the form of expanded particles and injecting it into the inlet side of the simultaneous coating and conveying apparatus 101 of the manufacturing apparatus 100;
And an impregnator (10) for impregnating the adhesive liquid with the heat-insulating or flame-retardant powder and then injecting the adiabatic or flame-retardant powder into the inlet of the coating and conveying apparatus (101) of the manufacturing apparatus (100) An apparatus for manufacturing an adiabatic and flame - retardant foamed styrofoam material. 3. The method of claim 2,
The rotating shaft 40 of the simultaneous coating and conveying apparatus 101 is formed of a conveying screw to form a conveying coating unit 20 in which an input material is conveyed and simultaneously coated,
A plurality of stirring rods 31 are mounted on the rotating shaft 40 and a plurality of stirring rods 31 are mounted on the inner side of the outer cylinder 35. The outer cylinder 35 is rotatably mounted on the rotating shaft 40 And a plurality of the transporting coating portions 20 and the agitating portions 30 are sequentially and optionally formed according to necessity
Wherein the foamed styrofoam material is produced by a method comprising the steps of: 3. The method according to claim 1 or 2,
Wherein the heat insulating powder is black. The method according to claim 1,
Characterized in that it comprises an impregnator (10) for putting the heat-insulating or flame-retardant powder into the inlet side of the simultaneous coating and conveying apparatus (101) of the manufacturing apparatus (100) A device for manufacturing a styrofoam material.

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