KR100699350B1 - Uniform coating apparatus for particles of porous articles - Google Patents

Abstract

A coating agent uniform impregnating device for porous articles is provided to improve product quality by penetrating a coating agent into voids among particles of the porous articles by suction and uniformly dispersing the coating agent among the particles of the porous articles by using centrifugal force generated by rotation. The coating agent uniform impregnating device for porous articles is composed of a coating agent impregnating unit(20) comprising a housing(21) for storing the porous articles having voids among particles, a coating agent supply unit(23), and a suction unit for sinking a coating agent into gaps among the particles of the porous articles by a pump(25a) supplying suction pressure to the housing and a coating agent dispersing unit(30) having a motor(31), a porous article fixing member(33), and a relay member(35) connecting the motor and the fixing member and uniformly dispersing the coating agent by rotating the porous article impregnated with the coating agent in the coating agent impregnating unit.

Description

UNIFORM COATING APPARATUS FOR PARTICLES OF POROUS ARTICLES

1 is a block diagram of a coating uniform impregnation device for a porous article according to the present invention,

2 is a schematic view of a coating uniform impregnation apparatus for a porous article according to the present invention,

3 is a flow chart of a coating uniform impregnation method for a porous article.

<Description of the symbols for the main parts of the drawings>

10: transfer part 20: joining part

21: housing 21A: settle

21B: Suction space part 21C: Transfer pump

23: coating material supply means 23a: storage tank

23b: pump 23c: piping

25: suction means 25a: suction pump

30: coating dispersion 31: motor

33: fixing member 35: relay member

40: drying section

The present invention relates to an apparatus and an impregnation method for uniformly impregnating a coating agent between particles and particles of a porous article,

More specifically, to uniformly impregnate the flame retardant as a coating on porous and combustible building materials, in particular foamed polystyrene foam panels.

First, a coating (such as a flame retardant) is randomly permeated into the pores between the porous article (such as polystyrene foam panels) particles and the particles by a forced method such as suction.

Then by uniformly dispersing the coating agent penetrated between the porous article particles by the centrifugal force according to the rotation

In order to improve the quality of the porous article, in particular, uniformly impregnated and dispersed flame retardant in the polystyrene foam panel to contribute to the prevention of fire and to reduce the casualties due to toxic gases in the fire.

Polystyrene foam panels are mainly used as panels or other insulation materials for prefabricated simple buildings, but due to their inherent combustibility, fire causes many problems due to self-combustion and smoke.

Currently, polystyrene foam, which is used as a building material, is not used for general combustion but is deformed so as to show shrinkage by heat (this is called 'automatic').

Nevertheless, there is an increasing need to introduce flame retardancy into polystyrene foam.

Mixing a flame retardant in the resin itself prior to polystyrene foaming to impart flame retardancy can cause foam quality problems, and consumes a large amount of flame retardant, resulting in low price competitiveness.

In this regard, the technique of focusing on introducing a flame retardant between the polystyrene foam particles and the particles by using the characteristic that the polystyrene foam has a gap between the expanded particles and the particles

Patent Registration No. 0542050 (2006.01.03) `` A flame-retardant insulating plate body impregnated with a thermosetting resin in the pores of the high-foam polystyrene foam and its manufacturing method '' is presented,

The main feature of the registered patent is to introduce a flame retardant into the polystyrene foam panel by injecting the polystyrene foam into the impregnation tank, and lowering the air pressure inside the impregnation tank using a vacuum pump.

Nevertheless, the registered patent is inevitably weakened in the market competitiveness due to the increase in unit price due to the long impregnation time,

Furthermore, since the flame retardant penetrated between the particles and the particles of the polystyrene foam panel is not evenly distributed, the flame retardant properties cannot be completely guaranteed.

Therefore, the present invention has been proposed to solve the problem of patent registration No. 0542050,

First, a flame retardant is contacted (for example, sprayed) on one surface of the polystyrene foam panel, and a suction force is generated by using a vacuum pump on the other surface of the panel to generate a suction force between the polystyrene foam particles and the particles. Soak in,

Hereby provides a uniform impregnation apparatus and impregnation method capable of producing a polystyrene foam panel uniformly dispersed in a flame retardant within a short time by uniformly dispersing the flame retardant by centrifugal force through the rotation of the panel,

It is intended to generalize this concept to introduce flame retardants or other functional solvents (e.g. antifungal agents, fragrances, constituent liquids (e.g. sulfur water) for far-infrared radiation) into porous and combustible building materials.

It is an object to provide a product in which various coatings are uniformly impregnated with various porous articles by extending and generalizing these characteristics.

Coating uniform impregnation device for a porous article according to the present invention to achieve the above object is

A housing containing a porous article having voids formed between the particles,

Coating supply means,

A coating impregnation portion comprising suction means for allowing the coating material to permeate between the particles of the article and a particle through a pump providing a suction pressure to the housing; And

motor,

The porous article fixing member,

It includes a relay member for connecting the motor and the fixed member,

Coating dispersing unit for uniformly dispersing the coating by rotating the porous article impregnated with the coating in the impregnation

It is made, including.

In addition, the coating uniform impregnation method for a porous article according to the present invention

(a) contacting the coating agent on one side of the porous article with voids formed between the particles;

(b) allowing the coating agent to permeate between the particles of the article and a particle through a pump that provides suction pressure to the other surface of the porous article passed through step (a); And

(c) rotating the porous article passed through step (b) to uniformly disperse the coating agent

It is made, including.

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

In the following description, the porous article will be described mainly for building polystyrene foam panels, but the present invention may be applied as it is or modified to porous building materials and other porous articles for ceiling gypsum board or other insulation materials by those skilled in the art.

In addition, even if the flame retardant is described mainly as a kind of coating agent, the present invention can be applied to the introduction of other non-flammables, fragrances, or far-infrared radioactive liquids such as sulfur in a porous article, the scope of protection of the present invention Should be interpreted as

First with regard to the coating uniform impregnation device for the porous article, as shown in Figs. 1 and 2 (in Fig. 1, the solid line represents the flow of the panel P, and the dotted line represents the flow of the fluid (air and flame retardant)),

Considering reducing the input of possible labor due to automatic transfer of impregnated coating material (C), ie flame retardant, through polystyrene foam panel (P)

The panel P of a predetermined size is supplied from the conveying part 10 made of the conveyor belt and is delivered to the impregnation part 20 which is one of the cores of the present invention.

The impregnation unit may be implemented as a tank in which a flame retardant is stored and configured to take a vacuum pressure, as in Patent Registration No. 0542050, but in order to enable an automated continuous operation while achieving a faster impregnation.

In the present invention, the impregnation part 20 includes a housing 21, a coating material supply means 23, and a suction means 25, and is configured to be impregnated by a suction method.

The housing 21 has a settled portion 21A provided at the same height as the conveyor belt of the transfer portion 10,

The entrance gate 21g is closed after the panel P is introduced into the settled portion, and the exit gate 21g 'used for discharge after impregnating the flame retardant is provided.

When the polystyrene foam panel (P) is located in the settled portion 21A of the housing, the panel arranged in the settled portion 21A and impregnated is first pushed and transferred to the coating dispersion 30 for the next process.

When the entry / exit gates 21g and 21g 'are closed, the flame retardant is prevented by the pump 23b provided on the storage tank 23a constituting the coating supply means 23 and the pipe 23c connecting the housing 21. C) is pressurized

One surface, that is, the upper surface of the panel P is evenly sprayed through the spray nozzle 23d.

The gates 21g and 21g 'are preferably provided with packing means for ensuring watertightness in order to prevent leakage of the flame retardant,

At the same time as the spraying of the flame retardant in the suction space portion 21B arranged below the housing 21

As the suction pump 25a constituting the suction means 25 is operated, the suction force of the pump extends through the pipe 25b.

Suction force also acts on the panel P located in the settled portion 21A.

The flame retardant sprayed on the upper surface of the panel is sucked through the fine pores between the foamed particles and the particles of the polystyrene foam panel, soaked into the particles to impregnate the flame retardant,

In this case, in order to prevent the flame retardant from leaking into the gap between the settled portion and the panel without impregnation, it is preferable that the packing member 21a is also provided at the panel contact portion of the settled portion 21A.

The flame retardant that has passed through the gap of the panel falls and falls into the hopper type collecting part 21b below the suction space part 21B.

The flame retardant collected in the collection unit is recovered to the storage tank 23a along the pipe 21c again through the transfer pump 21C,

In this case, in order to prevent foreign substances from entering, it is preferable that an appropriate filter is provided in front of the conveying pump.

In this way, the panel arranged in the settled portion 21A of the housing 21 in the impregnation portion 20 is

Two or more panels may be inputted instead of one, and at this time, for convenience, the panels are preferably loaded in an overlapped state when supplied from the transfer unit 10, and in this case, to provide an appropriate and sufficient suction pressure. The pump 25a capacity of the suction means must be selected (more than one pump can be used).

In addition, the state in which the panel is placed on the settled portion 21A of the housing 21 is detected by a sensor, for example, an infrared sensor composed of a transmitter S and a receiver R.

When the detection signal is transmitted to the microcomputer of the control panel, the microcomputer closes the gates 21g and 21g 'again, and commands the pump 23b of the coating agent supply means 23 and the pump 25a of the suction means 25 to operate. To be authorized,

In addition, the suction space (21B) collection unit (21b) is also provided with a liquid level detection sensor, if a certain level or more, it is preferable that the microcomputer to operate the conveying pump 21C when the signal of the sensor is transmitted and received.

Furthermore, the spray nozzle 23d of the coating agent supply means 23 can be modified in various forms,

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On the other hand, the coating agent supply means 23 is the pump is omitted, the storage tank (23a) is provided in a high place where the coating material transfer is carried out by the weight loss, the choice of coating spraying is also controlled by a microcomputer solenoid valve It can be modified in such a way that it is made by.

In the impregnation unit 20, if suction is performed for a time input to the microcomputer in consideration of factors such as the size of the panel, the type of coating agent, and the workplace temperature,

The transfer unit 10 is operated again by the command of the microcomputer, and the panel located at the housing settlement portion 21A is pushed through the exit gate by the panel P which is newly introduced by opening the gates 21g and 21g '. Discharged.

Subsequently, the flame-retardant impregnation is completed and the discharged panel (P) is also transferred to the coating dispersion 30 that forms another core of the present invention by the conveyor belt,

In order to uniformly disperse the coating agent (C) between the particles and the particles of the panel (P) in consideration of the use of centrifugal force

The dispersion unit 30 was composed of a motor 31 and a fixing member 33,

The fixing member 33 shown in the figure consists of a lower plate 33B positioned at the same height as the conveyor belt and a lower plate 33A which enables a firm fixing of the panel.

Lifting and lowering of the upper plate 33A may be composed of, for example, an inlet cylinder 33a 'and a piston 33a that is lifted and lowered, and the cylinder 33a' is firmly supported by a support 33s (for example, Fixed to the ceiling).

The pulley 31a of the motor 31 and the pulley 33b provided on the lower plate 33B of the fixing member 33 are interlocked by a belt 35 which is a kind of relay member.

When the lower plate 33B is rotated by the motor 31, the upper plate 33A is also rotated as the panel held between the upper plate and the lower plate rotates.

The upper plate and the lower plate is provided with a bearing (B) to reduce the frictional resistance.

Although not shown in the upper plate in order to prevent the separation of the rotating panel (P) as needed, a plurality of fixing pins (33p) that can be raised and lowered on the rim (in conjunction with the piston to be raised and lowered together when the piston is raised and lowered) Implementable) is provided, the lower plate may be formed with an insertion hole that can be inserted into the lower end of the fixing pin,

These lifting pins can be selected by a variety of fixing means, in particular fixed means capable of automated operation,

In addition to the fixing function of the panel, the fixing means may contribute to ensuring the power transmission in the upper plate is interlocked by the rotational force of the lower plate driven by the motor.

Meanwhile, below and around the lower plate 33B of the dispersion unit 30, a collection container may be provided to prevent workplace contamination by the coating agent scattered during the rotation of the panel and to collect the coating agent.

If necessary, the rotational force of the motor 31 may be transmitted to the fixed member 33 by being accelerated or decelerated through an appropriate relay member.

The top plate 33A may also take the manner of being directly connected to the motor and rotated,

In addition, in order to rotate the panel impregnated with the coating agent so that the coating agent is uniformly dispersed between the foam particles and the particles of the panel, the rotation method may be rotated while changing the rotation direction in addition to continuously rotating in one direction.

In addition, the fixing member 33 for the panel is in place of the upper and lower plates 33A, 33B to be fixed in the form of a vise (vise)

Can be in the form of a case,

The case may be a hard hard case or a soft case in the form of a bag made of cloth or net,

What is necessary is just to select suitably, considering the advantage, such as productivity improvement, labor reduction, and the improvement of coating quality uniform dispersion | distribution quality.

The start and end of the lifting and lowering operation of the piston 33a of the upper plate 33A is also made by a position sensor, and the rotation time of the motor 31 is also inputted to the microcomputer in advance to be controlled automatically or by a task manager through a control panel. You can choose.

When the coating agent, that is, even dispersion of the flame retardant is completed on the panel in the coating dispersion unit 30

Again, the top plate 33A is raised and the panel, which has been completely dispersed by the newly introduced panel, is pushed and transferred to the next process.

The subsequent process will basically be a dry aging process of the panels impregnated with the coating evenly,

At this time, the drying unit 40 (as well as the aging) may be natural drying, but in order to produce a faster product, hot heat is supplied from the hot air blower 41 to the nozzle 43 so that artificial drying is selected. Can be,

In this case, in order to reduce energy loss, a heat loss blocking curtain is preferably provided around the nozzle 43.

After the drying of the panels is complete, packaging can take place,

It is desirable to trim the corners of the panel which are susceptible to breakage during coating impregnation, transfer, and dispersion before or after packaging or simultaneously with packaging.

In consideration of this finishing process, it is preferable that a panel having a certain area larger than the standard in which the actual polystyrene foam panel is to be used is applied to the coating agent equal impregnation device.

The coating uniform impregnation device for the porous article as described above may be arranged in a zigzag form or 'c' shape, etc., in order to increase the utilization of a constant installation space area, in particular, the length of the line possible for such a constant device installation area Long installation may be selected when drying and aging of the panel by natural drying.

Next, the coating uniform impregnation method for the porous article, as shown in Figure 2 and 3,

(a) contacting (spraying) a coating agent (flame retardant) on one surface of a porous article, for example, a polystyrene foam panel P, having voids formed between the particles (S10),

Subsequently, (b) allowing the coating agent to penetrate between the particles of the article and the particles through a pump providing suction pressure to the other surface of the porous article passed through step (a) (S20),

Finally (c) by rotating the porous article passed through the step (b) (S20) is made of a step of uniformly dispersing the coating (S30).

In order to improve the quality of the manufactured article, it may be desirable to add a drying step (in particular, by heat) (S40).

In the coating uniform impregnation device and impregnation method for a porous article according to the present invention as described above, a flame retardant is contacted (for example, sprayed) on one surface of a porous article, for example, a polystyrene foam panel, and the other surface of the panel ( The suction pump (suction) is generated by using a vacuum pump so that the flame retardant penetrates between the polystyrene foam particles and the particles, and then the flame retardant is completely dispersed within a short time by uniformly dispersing the flame retardant through the rotation of the panel. It is possible to produce dispersed polystyrene foam panels and to generalize this concept to introduce flame retardants or other functional solvents (e.g. anti-mildew, fragrances, component liquids for far-infrared radiation) into porous and combustible building materials. If more generalized, the products in which various coatings are uniformly impregnated into various porous articles I can offer,

Even if only the impregnated flame retardant is impregnated into the building polystyrene foam panel, it is possible to provide high quality flame retardant panel which can contribute to the prevention of fire and reduce the casualty caused by the toxic gas in the fire and at a lower cost.

In the above description, a conventionally known technique related to the type of porous article, the total volume ratio of the voids, the specific type of the coating agent or the flame retardant, and the rotational speed (rpm) of the article rotated by the motor forming the dispersion part is omitted. You can easily guess and infer this.

In the above description of the present invention, the impregnation device having a specific shape and structure and the impregnation method in a specific order have been described with reference to the accompanying drawings. However, the present invention may be variously modified and changed by those skilled in the art. Changes should be construed as falling within the protection scope of the present invention.

Claims (8)

A conveying unit 10 to which a polystyrene foam panel P having voids formed between the particles and the particles is supplied; An entrance gate 21g and an exit gate 21g 'through which the panel enters and exits are provided, and are provided at the same height as the transfer part, and a settled part in which the panel P supplied from the transfer part 10 is located ( 21A), the suction housing 21B in the lower part of the settled portion, the hopper-type collector 21b provided in the suction space portion has the housing 21, The coating material (C) storage tank 23a, which is connected to the hopper-type collecting part 21b and the pipe 21c and recovers the coating agent used through the transfer pump 21C provided on the pipe 21c, Forced supply of the spray nozzle (23d) provided on the panel (P) located in the housing 21, the pipe (23c) connecting the storage tank (23a) and the nozzle (23d), and the coating agent (C) Coating means 23 comprising a pump 23b arranged on the pipe for Suction means for allowing the coating agent to penetrate between the particles of the panel and the particles through a pump (25a) for providing a suction pressure to the suction space portion 21B of the housing 21 arranged below the panel (P) ( A coating impregnation portion 20 comprising 25); And Motor 31, The lower plate 33B provided at the same height as the conveying part 10 and the upper plate 33A having a plurality of fixing pins 33P on the rim to enable a fixed fixing of the panel and to enable the ascending and descending. The panel fixing member 33, It includes a relay member for connecting the lower plate of the motor 31 and the fixing member 33, Coating dispersing unit for uniformly dispersing the coating by rotating the panel impregnated with the coating in the impregnation It is made, including The coating agent uniform impregnation device for a porous article, characterized in that the coating agent is a flame retardant. delete delete delete delete delete delete delete

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