KR100946241B1 - Dryer of coating apparatus - Google Patents

Abstract

PURPOSE: A drier for a coating apparatus of a foamed resin particle is provided to rapidly dry the foamed resin particle in which the surface of the coater is coated with a coating solution and to exhaust the foamed resin particle only in state that the coating solution is completely dried. CONSTITUTION: A drier for a coating apparatus of a foamed resin particle comprises a first drying furnace(41) and a second drying furnace(51) in which warm air outlets(41a,51c) are respectively included on the floor side. A coating solution spread on the surface is completely dried while passing through the second drying furnace. The foamed resin particle having relative low moisture content is raised on a position higher than a vent using warm air pressure and is exhausted through the vent using a transfer wing(52a). The foamed resin particle having relative high moisture content is raised on the position lower than the vent using the warm air pressure and is continuously dried through the warm air discharged from the floor side. The transfer wing is prepared in a transfer load(52) of the second drying furnace and has a network structure in which a plurality of through-holes are formed. The foamed resin particle having the bigger diameter than the through-hole is transferred to the vent by the transfer wing.

Description

Dryer for foam resin particle coating equipment {Dryer of coating apparatus}

The present invention relates to a dryer for a foaming resin particle coating apparatus, and more specifically, to a foaming apparatus configured to quickly dry foamed resin particles coated with a coating liquid on a surface through an applicator, and to separate and sort the foamed resin particles according to a dry state. It relates to a dryer for a resin particle coating apparatus.

Foamed resins such as expanded polystyrene, expanded polyethylene, and expanded polypropylene have excellent properties with light weight, cushioning, and heat insulation by having a foam structure in which air is sealed in the foam of the polymer resin.

In particular, expanded polystyrene is white and light, and is widely used in packaging materials and building materials because of its excellent water resistance, heat insulation, sound absorption, and cushioning properties.

However, the foamed resin including foamed polystyrene has a foam structure, which is relatively weak to heat and chemicals and particularly very vulnerable to fire. When used as an interior or exterior building material such as insulation or sandwich panel, It is required to impart flame retardancy.

However, due to the characteristics of the foam structure, adding a flame retardant component to the inside makes it difficult to impart sufficient flame retardancy. In recent years, a polymer resin coating liquid containing an inorganic flame retardant or non-flammable agent is applied to the surface of a resin particle having pre-foamed coating layer. The formation of flame-retardant partition walls between the foamed particles of a molded article and the method of imparting flame retardancy have been developed and used.

In addition, a series of processes for forming a coating layer on the surface of the foamed resin particles such as polystyrene include a coating step of applying a functional coating solution to the surface of the pre-expanded foamed resin particles, and a foamed resin coated with a coating solution on the surface through the coating step. It comprises a drying step of drying and discharging the particles, the quality stability of the foamed molded article as a finished product depends on the formation state of the coating layer.

That is, the coating liquid must be quickly coated with a uniform thickness on the surface of the foamed resin particles through an application process, and the coating liquid applied to the surface of the foamed resin particles in a drying process must be dried quickly to include durability and flame retardancy. Quality stability and high productivity.

On the other hand, in the conventional coating apparatus of the foamed resin particles, the foamed resin particles coated with the coating liquid are introduced into the cylindrical drying furnace in which the rotating rod is provided and the warm air is discharged to the bottom surface, and the foamed resin particles introduced into the drying furnace are rotated in one direction by the rotating rod. Dryers are provided that are provided with warm air while rotating.

However, when the foamed resin particles coated with the coating liquid are dried through the dryer, the circulation of the warm air is not properly performed, and thus the coating liquid applied to the surface of the foamed resin particles is difficult to dry quickly.

In particular, the conventional dryer is not provided with a sorting discharge structure for sorting and discharging according to the drying state of the coating liquid, the foamed resin particles are dried in the drying process and the foamed resin particles are not completed drying continues to dry, If this condition is continuously maintained, the coating layer of the dried foamed resin particles may be physically damaged, thereby degrading the stability of the quality.

An object of the present invention devised to solve the above problems is to provide a drying structure having an improved self-weight selection function, and to be configured to promptly dry the foamed resin particles coated with a coating liquid on the surface by this drying structure In particular, the present invention provides a dryer of the expanded resin particle coating apparatus configured to ensure the stability of the quality by configuring the foamed resin particles to be discharged to the outside only when the coating liquid is completely dried by the self-weight sorting structure.

The configuration of the present invention for achieving the above object,

A dryer for a foamed resin particle coating apparatus, which receives a foamed resin particle coated with a coating liquid on a surface thereof, is dried by warm air, and forms a coating layer on which the coating liquid is solidified on the surface of the foamed resin particle.
A first drying furnace having a hot air discharge port formed on a bottom surface thereof; A second drying furnace communicating with an outlet of the first drying furnace and having a hot air discharge opening formed at a bottom thereof;
The second drying furnace is formed in a tunnel type with a supply port is formed on one side and the discharge port on the other side, the transfer rod standing in the longitudinal direction is rotated by receiving a rotational force from the transfer motor between the supply port and the discharge port formed in the second drying furnace While a plurality of are disposed, the outlet of the second drying furnace is formed in the upper one point spaced from the bottom surface,
As the coating liquid applied to the surface is completely dried while passing through the second drying furnace, the foamed resin particles having a relatively low moisture content are buoyed in a phase higher than the outlet by warm air pressure, and discharged through the outlet by a feed vane turning in a transverse direction. Become,
Although the coating liquid is not completely dried while passing through the first drying furnace and the second drying furnace, the foamed resin particles having a relatively high moisture content are suspended in a phase lower than the outlet by warm air pressure and are not discharged to the outlet, and are turned in the transverse direction. It is configured to be continuously made by the warm air discharged from the bottom while turning by stirring blades.
The conveying wing provided on the conveying rod of the second drying furnace has a network structure formed with a plurality of venting holes, and the foamed resin particles having a larger diameter than the venting holes formed on the conveying wing are directed toward the outlet by the conveying vane turning in one direction. The hot air is transported and discharged from the bottom surface and dried in a state in which the foamed resin particles are supported. The warm air is transmitted by the air vents of the transfer blades to minimize the change in the flow direction.

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Preferably, the first drying furnace is formed in a cylindrical shape, the inside is rotated to receive a rotational force from the diffusion motor and the diffusion rod having a plurality of diffusion wings disposed radially on the outside is installed in the longitudinal direction, in the applicator The foamed resin particles supplied to the first drying furnace are configured to receive the warm air discharged through the hot air discharge port while being diffused by the diffusion blades of the diffusion rod turning in one direction so as to dry the coating liquid on the surface.

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In addition, a separate discharge part for separating and discharging the foamed resin particles is added to the discharge port of the second drying furnace, and the separation discharge portion, the separation tank in communication with the discharge port of the second drying furnace on one side and the discharge port formed in the lower portion; A separation network installed in the separation tank and having a plurality of separation holes formed therein; A separation rod in which a separation blade rotates in close contact with an upper surface of the separation network; And a separation motor for rotating the separation rod, wherein the expanded resin particles dried from the second drying furnace are supplied to the separation network, and are rotated in one direction while being rotated through the separation blades of the separation rod and formed in the separation network. It is configured to be discharged by dropping its own weight through the separation hole.

As described above, in the present invention, an improved self-weight sorting structure is provided in a second drying furnace for drying the coated resin particles coated with the coating liquid, so that the coating liquid formed on the surface of the expanded resin particles is discharged separately. have.

The self-weighting structure provided in the second drying furnace has a plurality of transfer rods erected in a longitudinal direction rather than in a transverse direction so that the transfer blades of the transfer rods pivot in a horizontal direction, thereby being accommodated in the second drying furnace and at the bottom surface. Since the foamed resin particles supported by the discharged warm air are discharged in a state in which the intrinsic phase is maintained by the transfer blades, the self-weight selection of the foamed resin particles using the flotation height can be realized more precisely and stably.

In particular, the transfer blade of the transfer rod is made of a network structure, by minimizing the change in the flow direction of the warm air discharged from the bottom surface, the foamed resin particles can achieve a stable flotation state by the warm air, thereby improving the operating stability It can be provided.

Hereinafter, with reference to the accompanying drawings will be described in detail a dryer for a foaming resin particle coating apparatus proposed in the preferred embodiment of the present invention.

1 is a view showing the overall configuration of a foaming resin particle coating apparatus comprising a dryer proposed as a preferred embodiment in the present invention, Figures 2a to 2b is in the foaming resin particle coating apparatus shown in FIG. Figure 3a to 3c shows the detailed configuration of the applicator, and shows the detailed configuration and operation state of the dryer for foamed resin particle coating apparatus proposed as a preferred embodiment in the present invention, Figure 4 according to the present invention It shows the discharge state of the foamed resin particles formed with a coating layer on the surface through the dryer.

Dryer for foamed resin particle coating apparatus according to the present invention, the foamed resin particles (P) of the pre-foamed state stored in the hopper 10 as shown in Figure 1; The coating liquid L stored in the storage tank is supplied to the coating apparatus of the foamed resin particles, including an applicator 30 that agitates them and applies the coating liquid L to the surface of the foamed resin particles P. It is designed to form a coating layer in which the coating solution is solidified on the surface of the foaming resin particles by receiving the foamed resin particles coated with the coating liquid from the air and drying them through warm air.

Referring to FIG. 1, between the hopper 10 and the applicator 30, a weight measuring unit 20 provided with a load cell 22 is installed at a lower portion of the measuring tank 21, and foaming stored in the hopper 10 is provided. The resin particles P are supplied to the weight measuring unit 20, the weight is measured by the load cell 22, and then supplied to the applicator 30 by quantity.

In addition, a transfer screw 24 is provided between the hopper 10 and the weight measurement unit 20, and a transfer pipe 23 provided with a transfer blower 23a is provided between the weight measurement unit 20 and the applicator 30. The foamed resin particles P, which are installed and stored in the hopper 10, are supplied to the weight measurement unit 20 through the transfer screw 24, and the foamed resin particles P whose weight measurement is completed in the weight measurement unit 20 are transferred. It is conveyed to the applicator 30 and supplied by the blowing pressure formed by the blower 23a.

Here, the applicator 30, the stirring tank 31 to form a receiving space of the foamed resin particles (P) and the coating liquid (L) as shown in Figure 1 and 2a; A plurality of stirring blades (32A-a, 32B-a) in the form of radially disposed on the outside, the foaming resin particles (P) and the coating liquid (L) contained in the stirring tank 31, stirring blades (32A-a, A stirring rod portion including a first stirring rod 32A and a second stirring rod 32B, which are stirred through 32B-a); A stirring motor 33 providing rotational force to the stirring rods 32A and 32B; And a coating liquid supply pipe 34 disposed at an upper portion of the stirring tank 31 to supply the coating liquid L to the foamed resin particles P accommodated in the lower portion.

In addition, the coating liquid (L) is coated on the surface of the foamed resin particles (P) to have various functionalities. In the present invention, for example, a polymer resin coating liquid containing an inorganic flame retardant or non-flammable agent is coated on the foamed resin particles such as polystyrene. It is intended to be flame retardant, and in general, it is difficult to spray due to its high viscosity.

And, between the coating liquid supply pipe 34 and the coating liquid storage tank 34b, a connecting pipe 34a provided with the transfer pumps 34a-a is installed, and the coating liquid supply pipe 34 provides a transfer pipe 34a. The coating liquid (L) stored in the coating liquid storage tank 34b is discharged into the stirring tank 31 through.

In addition, a network member 35 having a plurality of distribution holes 35a is installed in the lower portion of the coating solution supply pipe 34 installed in the stirring tank 31, and discharged through the coating solution supply pipe 34. The coating liquid L is dispersed while passing through the distribution holes 35a of the network member 35 and dropped on the foamed resin particles P accommodated in the lower portion.

On the other hand, in the present embodiment by applying the installation structure and the rotating structure of the improved stirring rod in installing the stirring rods 32A, 32B in the stirring tank 31, the stirring tank 31 by the installation structure and the rotating structure The foamed resin particles (P) contained in) are vigorously flown so that the coating liquid L is uniformly coated on the surface.

In the installation structure of the stirring rod, a pair of stirring rods 32A and 32B are disposed in parallel in the horizontal direction on both left and right sides of the stirring vessel 31 as shown in FIGS. 2A and 2B. The rotating structure of 32A, 32B rotates the stirring rod 32A arrange | positioned at the left side of the said stirring tank 31 to the left direction, and the stirring rod 32B arrange | positioned at the post of the stirring tank 31 has the right direction. It is configured to rotate.

When the pair of stirring rods 32A and 32B are disposed on the left and right sides of the stirring vessel 31 as described above, the first stirring rod 32A which is disposed on the left side of the stirring vessel 31 and pivots leftward. These stirring blades 32A-a and 32B are provided between the stirring blades 32A-a and the second stirring blades 32B-a of the stirring rod 32B disposed in the right side of the stirring tank 31 and turning in the right direction. An intersection section 32C is formed in which -a) intersect each other.

Thus, as shown in FIG. 2A, the first stirring rod 32A provided on the left side of the stirring vessel 31 receives the expanded resin particles P positioned on the left side of the stirring vessel 31 through the stirring blades 32A-a. When it transfers to the cross section 32C, the 2nd stirring rod 32B provided in the post | column of the said stirring tank 31 will stir the foamed resin particle P conveyed to the cross section 32C by the 1st stirring rod, and the stirring tank. (31) will be moved to the post.

Then, the second stirring rod 32A provided at the post of the stirring vessel 31 crosses the foamed resin particles P located at the post of the stirring vessel 31 via the stirring blades 32A-a. ), The first stirring rod 32B provided on the left side of the stirring vessel 31 transfers the foamed resin particles P transferred to the cross section 32C by the second stirring rod of the stirring vessel 31. It will move to the left side.

Therefore, in the foaming resin particle coating apparatus 1 according to the present embodiment, the foaming resin particles P accommodated in the stirring vessel 31 are not stacked in one place by the installation structure and the rotating structure of the improved stirring rod. Since the liquid flows vigorously from side to side by a pair of stirring rods 32A and 32B which are different from each other and the stirring blades cross each other during the rotation process, as a result, the coating liquid L is uniform on the surface of each foamed resin particle P. Can be applied.

Then, the foamed resin particles P coated with the coating liquid L on the surface through the stirring process are supplied to the dryer 40 disposed in the lower portion by dropping the weight through the outlet 31a formed on the bottom surface.

Meanwhile, as shown in FIGS. 1 to 3A and 3B, the dryer 40 is disposed in a lower part of the applicator 30 and is disposed in a first drying furnace in which a warm air discharge port 41a is formed on the bottom surface of the dryer 40. 41); It communicates with the discharge port 41b of the said 1st drying furnace 41, and is comprised including the 2nd drying furnace 51 in which the hot air discharge port 51c was formed in the bottom surface.

In addition, an exhaust pipe 71 communicating with the dust collector 70 is disposed in the first drying furnace 41 and the second drying furnace 51, and the coating liquid L formed on the surface of the foamed resin particles P. The warm air introduced into the respective drying furnaces 41 and 51 for drying is recovered by the dust collecting device 70 through the exhaust pipe 71 after the heat exchange process with the foamed resin particles P is completed.

At this time, the warm air recovered in the dust collector 70 contains a large amount of an organic solvent such as alcohol recovered in the drying process of the coating liquid. Accordingly, the dust collector 70 burns a large amount of organic solvent contained in the warm air by burning. The steam is generated and utilized in the steam foaming process of the foamed resin particles which follow the coating apparatus according to the present invention.

On the other hand, the first drying furnace 41 is composed of a cylindrical body, the inside of the first drying furnace 41 is rotated by receiving a rotational force from the diffusion motor 43, a plurality of diffusion blades (42a) on the outside The diffusion rod 42 disposed in the radial structure is installed in the first drying furnace 41 in the longitudinal direction, and the foamed resin particles P supplied from the coating unit 30 to the first drying furnace 41 are It is widely spread by the diffusion blades 42-a of the diffusion rod 42 turning in one direction while being provided with warm air discharged from the bottom surface, thereby implementing primary drying of the coating liquid L applied to the surface.

And, the second drying furnace 51 is composed of a tunnel body formed with a supply port 51a in communication with the discharge port 41b of the first drying furnace 41 on one side and the discharge port 51b on the other side, In this embodiment, a self-weighting structure is provided in the second drying furnace 51, and among the foamed resin particles coated with the coating liquid on the surface, the foamed resin particles having completely dried the coating liquid are discharged through the outlet, and the coating liquid is dried. The foamed resin particles, which were not completely made, remain in the second drying furnace to be continuously dried.

To this end, in the present embodiment, a plurality of transfer rods installed in the longitudinal direction in which the rotational force is supplied from the transfer motor 53 between the supply port 51a and the discharge port 51b formed in the second drying furnace 51 ( 52) are continuously excreted at regular intervals.

In addition, the transfer blade 52a provided in the transfer rod 52 has a network structure in which a plurality of vent holes 52a-a are formed as shown in FIG. 3C.

Therefore, the expanded resin particles P having a diameter larger than the vent holes 52a-a formed in the transfer blades 52a are transferred in the discharge port direction by the transfer blades 52a turning in one direction and discharged from the bottom surface. Thus, the warm air dried in the state in which the foamed resin particles P are supported is transmitted by the air vents 52a-a of the transfer blade 52a, so that the change in the flow direction is minimized.

In addition, the outlet 51b of the second drying furnace 52 is formed at an upper one point spaced apart from the bottom surface.

At this time, the formation point of the outlet 51b is lower than the flotation height of the foamed resin particles of which the coating liquid coated on the surface described below is completely dried, and higher than the flotation height of the foamed resin particles of which the coating liquid coated on the surface is not completely dried.

And, unlike the present embodiment, if the transfer rods are installed in the transverse direction inside the second drying furnace, the buoyant foamed resin particles are moved up and down by the transfer blades of the transfer rod turning in the longitudinal direction, so that It is difficult to achieve stable discharge of the foamed resin particles.

Therefore, the coating liquid L applied to the surface while passing through the first drying furnace 41 and the second drying furnace 51 is completely dried, so that the foamed resin particles having a relatively low moisture content are discharged by the hot air pressure. Lifted to a higher phase, in this state, it is moved by the feed vane 52b of the feed rod 52 that is pivoted horizontally, and as a result is discharged through the outlet 51b.

In addition, the foaming resin particles P having a relatively high moisture content due to the coating liquid not being completely dried while passing through the first drying furnace 41 and the second drying furnace 51 are more than the outlet 51b by the warm air pressure. Since the phase is floated in a low state, it is continuously dried by the warm air discharged from the hot air discharge port 51c while turning by the transfer blade 52b of the transfer rod 52 that rotates horizontally.

Thus, in the foamed resin particle coating apparatus 1 according to the present embodiment, only the foamed resin particles in which the coating liquid completely dried on the surface by the self-weight selection structure formed in the second drying furnace 51 are discharged through the outlet 51b. As a result, it is possible to combine improved quality stability.

In addition, in the present embodiment, by adding a separate discharge part 60 for separating and discharging the foamed resin particles P, which are separated and discharged through the self-weight sorting structure in the second drying furnace 51, the coating liquid in the drying process. Some of the foamed resin particles P coagulated to each other (L) pass through the separation discharge unit 60 so as to be separated by grains and discharged.

 The separation discharge unit 60, the separation tank 61 in communication with the discharge port (51b) of the second drying furnace 51 on one side, the discharge port (61a) formed in the lower portion; A separation net 62 installed inside the separation tank and having a plurality of separation holes 62a formed therein; And a separation rod 63 in which the separation blade 63a is in close contact with the upper surface of the separation network 62 and rotated. And a separation motor 64 for rotating the separation rod.

When the separation discharge unit 60 configured as described above is supplied with the foamed resin particles P, which have been dried from the second drying furnace 51, to the separation network 62, the separation rod 63 is rotated in one direction and the separation blades are rotated. The foamed resin particles P supplied to the separation net 62 through 63a are rotated in one direction.

In this process, some of the aggregated foamed resin particles (P) are disintegrated to form individual grains, thereby separating the separation hole (62a) of the separation network 62 having a diameter larger than the diameter of the foamed resin particles (P). Falls through its own weight through the discharge port 61a formed in the lower portion.

Then, the foamed resin particles (P) discharged through the discharge port 61a of the separation discharge unit 60 is transferred to the siro 80 and undergoes a aging process, and then supplied to a steam foam molding apparatus (not shown) and foamed. The foamed resin particles P, which are molded into a molded article, are transferred to the inter 80, and thus, the coating layer is formed on the surface of the foamed resin particle P, and thus, the coating layer formed on the surface is easily damaged when a strong external force is received.

In view of this, in this embodiment, as shown in Figure 4, the high-pressure discharge tube for discharging the high-pressure air to the transfer pipe 81 formed between the discharge port 61a and the passage 80 of the separation tank 61 ( 82 is disposed, and the foamed resin particles P discharged through the outlet 61a of the separation tank 61 by the high pressure air discharged by the high pressure discharge pipe 82 are physically damaged by the path 80. Minimize the flow rate to ensure rapid transfer.

The conveying structure of the foamed resin particles through the high pressure discharge tube 82 adopted in the present embodiment is compared with the conveying structure using the conveying screw or the conveying blower, between the foamed resin particles and the screw blades of the conveying screw, or the foamed resin particles. Since physical collisions occurring between the blowing blades of the transport blower and the blower are suppressed, the physical damage of the coating layer formed on the surface of the foamed resin particles is minimized.

In addition, in the present embodiment, the cyclone dust collecting part 83 is formed in the transfer pipe 81 formed between the separation discharge part 60 and the passageway 80, and is detached from the surface of the foamed resin particles P and aggregated. The sludge composed of the coating liquid mass is separated into the lower part by a relatively heavy weight thereof, and the foamed resin particles P having the relatively light weight coating layer are transferred to the path 80 through the outlet 83a formed at the top. Doing.

Therefore, since the coating layer (L) is stably formed on the surface of the path (80) to obtain only the foamed resin particles (P) to ensure the stability of the quality, thereby producing a high-quality functional foamed resin molded article secured quality stability Is possible.

Figure 1 shows the overall configuration of the foamed resin particle coating apparatus comprising a dryer proposed as a preferred embodiment in the present invention,

Figure 2a to 2b is a foam resin particle coating apparatus shown in Figure 1, showing a detailed configuration of the applicator,

3a to 3c is a view showing a detailed configuration and the working state of the dryer for foamed resin particle coating apparatus proposed as a preferred embodiment in the present invention,

Figure 4 shows the discharge state of the foamed resin particles having a coating layer formed on the surface through a dryer according to the present invention.

**** Explanation of symbols for the main parts of the drawing ****

1. Foam resin particle coating equipment

10. Hopper 11. Outlet

20. Weight measuring unit 21. Measuring tank

22. Load cell 23. Transfer pipe

23a. Feed blower 24. Feed screw

30. Applicator 31. Stirrer

31a. Outlet 32A, 32B. Stirring rod

32A-a, 32B-a. Stir Blade 32C. Intersection

33. Stirring motor 34. Coating liquid supply pipe

34a. Connector 34b. Storage tank

34a-a. Transfer pump 35. Reticular member

35a. Distribution hole B. Bottom

40. Dryer 41. First drying furnace

41a. Hot air outlet 41b. outlet

42. Diffusion Rod 42a. Diffused Wings

43. Diffusion Motor

51. Second Furnace 51a. Supply port

51b. Outlet 51c. Hot air outlet

52. Feed Rod 52a. Feed wing

53. Transfer Motor

60. Separation outlet 61. Separation tank

61a. outlet

62. Separation Network 62a. Separator

63. Separation rod 63a. Separation wing

64. Separate motor

70. Dust Collector 71. Exhaust Pipe

80. Through 81. Transfer pipe

82. High pressure discharge tube 83. Cyclone dust collector

83a. outlet

Claims (4)

A dryer for a foamed resin particle coating apparatus, which receives a foamed resin particle coated with a coating liquid on a surface thereof, is dried by warm air, and forms a coating layer on which the coating liquid is solidified on the surface of the foamed resin particle. A first drying furnace having a hot air discharge port formed on a bottom surface thereof; A second drying furnace communicating with an outlet of the first drying furnace and having a hot air discharge opening formed at a bottom thereof; The second drying furnace is formed in a tunnel type with a supply port is formed on one side and the discharge port on the other side, the transfer rod standing in the longitudinal direction is rotated by receiving a rotational force from the transfer motor between the supply port and the discharge port formed in the second drying furnace While a plurality of are disposed, the outlet of the second drying furnace is formed in the upper one point spaced from the bottom surface, As the coating liquid applied to the surface is completely dried while passing through the second drying furnace, the foamed resin particles having a relatively low moisture content are buoyed in a phase higher than the outlet by warm air pressure, and discharged through the outlet by a feed vane turning in a transverse direction. Become, Although the coating liquid is not completely dried while passing through the first drying furnace and the second drying furnace, the foamed resin particles having a relatively high moisture content are suspended in a phase lower than the outlet by warm air pressure and are not discharged to the outlet, and are turned in the transverse direction. It is configured to be continuously made by the warm air discharged from the bottom while turning by stirring blades.   The conveying wing provided on the conveying rod of the second drying furnace has a network structure formed with a plurality of venting holes, and the foamed resin particles having a larger diameter than the venting holes formed on the conveying wing are directed toward the outlet by the conveying vane turning in one direction. Dryer for the foamed resin particle coating apparatus, characterized in that the hot air is transported, discharged from the bottom surface and dried in a state of supporting the foamed resin particles are permeated by the vent hole of the transfer blade to minimize the change in the flow direction. The spreading rod of claim 1, wherein the first drying furnace has a cylindrical shape, and is provided with a diffusion rod in a longitudinal direction, the inside of which is rotated by a rotational force from a diffusion motor, and a plurality of diffusion wings are radially disposed on the outside thereof. The foamed resin particles supplied to the first drying furnace from the air is foamed resin, characterized in that the coating liquid on the surface is dried by receiving the warm air discharged through the hot air discharge port while being diffused by the diffusion blades of the diffusion rod turning in one direction Dryer for particle coating equipment. delete According to claim 1 or 2, wherein the discharge outlet of the second drying furnace is additionally disposed to separate discharge portion for discharging the foamed resin particles, the separation discharge portion, in communication with the discharge port of the second drying furnace on one side and discharge outlet at the bottom Separation tank is formed; A separation network installed in the separation tank and having a plurality of separation holes formed therein; A separation rod in which a separation blade rotates in close contact with an upper surface of the separation network; And a separation motor for rotating the separation rod, wherein the expanded resin particles dried from the second drying furnace are supplied to the separation network, and are rotated in one direction while being rotated through the separation blades of the separation rod and formed in the separation network. Dryer for foamed resin particle coating apparatus, characterized in that configured to be discharged by dropping the weight through the separation hole.

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