KR100656568B1 - Polymer solution device - Google Patents

Abstract

A polymer solution device is provided to prevent polymers from being stuck on a specific spot by drying the polymers from an initial transfer step several times and to dissolve the polymers at predetermined concentration. The polymer solution device is composed of a feeder case(4) having a hot air discharge port(6); a first hot air guide unit(100) installed along the periphery of a transfer screw(12) disposed in the feeder case and formed with one end connected to a hot air blower and the other end connected to the hot air discharge port to dry polymers transferred along the transfer screw in the feeder case while the hot air fed from the hot air blower passes through the hot air discharge port; a drying tank(200) comprising a funnel-shaped inner case, an outer case surrounding the inner case, and a heating space wider than an upper periphery and formed at a lower periphery of the inner case, wherein the other end of the transfer screw and the end of a cylinder(14) are disposed in the inner case to receive the polymer delivered by the transfer screw; a second hot air guide unit(300) installed at the periphery of the cylinder of the transfer screw formed at the outside of the feeder case to secondly dry the polymers transferred from the feeder case to the drying tank by receiving the hot air fed from the first hot air guide unit; and a third hot air guide unit(500) connected to the second hot air guide unit, the drying tank, and an injector nozzle to thirdly dry the inside of the heating space by passing the hot air passing through the second hot air guide unit, by the heating space of the drying tank.

Description

Polymer solution device

1 is a schematic partial cross-sectional view showing a polymer dissolving device according to the present invention

2 is a cross-sectional view taken along line A-A 'schematically illustrating a connection state of a drying tank, a third hot air guide means and an injector nozzle;

Figure 3 is a schematic partial cross-sectional view showing a first hot air guide means

4 is a schematic partial cross-sectional view showing a drying tank

5 is a schematic partial sectional view showing a second hot air guide means;

Fig. 6 is a partially separated cross-sectional view showing a discharge hole of a cylinder, a through hole of an outer cylinder, and an auxiliary piece coupled thereto.

7 is a schematic partial sectional view showing a blowing pressure distribution means;

8 is a schematic perspective view showing a third hot air guide means;

9 is a partial cutaway front view of FIG. 8;

10 is a partial cutaway side view of FIG. 8.

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

2: hopper

4: feeder case

6: hot air outlet (of feeder case)

12: feed screw

14: cylinder

100: first hot air guide means

102: top plate 104: bottom plate

106: first hot air transport path

200: drying tank

202: outer case 204: inner case

206: heating space 210: valve

300: second hot air guide means

302: outer cylinder 304: through hole

306: second hot air transport path 308: first auxiliary pipe

400: blowing pressure distribution means

402: cover 404: drawing space

406 spacer 408 vent hole

500: third hot air guide means

502: type 1 hose 506: type 2 hose

The present invention relates to a polymer dissolving device, and more particularly, to a polymer dissolving device for preparing a suspension by mixing a solvent with a polymer such as a powdered medicine or a chemical.

As is well known, the polymer in powder form is easy to handle, transport and store, and is used as a suspension material, but when it comes into contact with water, the cohesive force increases to form agglomerates, so it is not easily dissolved in a solvent such as water, and adheres to and adheres. Has the property of becoming.

If polymers of this nature come into contact with moisture before being fed into the mixer through the hopper and the polymer conveying means, the problem is that the agglomerated polymer masses adhere to and adhere to the inner surface of the hopper, the conveying screw and the cylinders around them. Is generated.

Meanwhile, Korean Patent Publication No. 10-0201821 has been developed to solve the above-described problem. In the powder particle dissolving device, when the polymer supplied to the hopper is fed into the feeder case, the feed screw is rotated to supply the dispensing header. The polymer dropped to the injector through the distribution header is dried by the hot air supplied by the blower and the heater and simultaneously supplied into the injector, so that the dried polymer is supplied to the injector and the mixing unit connected thereto.

However, in the conventional powder particle dissolving device, the polymer dropped from the distribution header, that is, the polymer immediately before being injected into the injector is positioned in a straight line with the blower so that hot air is delivered and dried, but in the hopper or feeder case, screw, and cylinder around the screw In addition to the direct transfer of hot air to the polymer located there is little drying effect by the hot air, as well as external moisture flows into the inside of the hopper while opening and closing the solvent valve to open and close the cylinder. The problem of agglomeration and sticking of the polymer still occurs because of contact with the polymer.

Accordingly, the present invention was devised to solve the above-mentioned conventional problems, and a main object of the present invention is to heat a transfer screw circumference and a drying tank in the feeder case and a transfer screw circumference between the feeder case and the drying tank. Therefore, the present invention provides a polymer dissolving device capable of reliably drying the polymer inside the feeder case and the polymer transferred along the transfer screw.

The main features of the present invention for achieving the above object, a hopper, a feeder case which is provided at the lower side of the hopper is introduced into the hopper, and one end is provided in the feeder case is transferred to the injector nozzle side to dissolve A polymer dissolving device provided with a transfer screw to be stored in a tank, comprising: a feeder case having a hot air discharge port formed at one side of a polymer discharge hole; The polymer is provided around the transfer screw in the feeder case, one end is connected to the hot air outlet and the other end is connected to the hot air outlet, so that the hot air supplied from the hot air blower is transferred along the transfer screw in the feeder case while passing through the hot air outlet. First hot air guide means for drying the; It consists of a funnel-shaped inner case and the outer case surrounding the inner case, a heating space wider than the upper circumference is formed around the lower side of the inner case, the transfer inside the inner case so that the polymer transferred by the transfer screw is introduced A drying tank in which the other end of the screw and the cylinder end thereof are located; A second hot wind guide means provided around the screw cylinder outside the feeder case and receiving hot air transferred from the first hot wind guide means to secondary dry the polymer transferred from the feeder case to a drying tank; A third hot wind guide means connected to the second hot wind guide means, a drying tank, and an injector nozzle so that hot air passing through the second hot wind guide means is thirdly dried inside the drying tank via a heating space of the drying tank; It is further provided and comprised.

Another feature of the polymer dissolving device is that the blowing pressure is provided between the first hot wind guide means and the second hot wind guide means when hot air passing through the first hot wind guide means enters the second hot wind guide means. Blowing pressure distribution means for dispensing is further provided.

Here, the blowing pressure distribution means is provided between the cover having an inlet space opposed to the entire circumference of one side of the second hot air guide means, and between the side and the cover of the hot air outlet side feeder case and the hot air outlet of the feeder case. And a spacer having a vent hole for connecting the inlet space of the cover.

A further feature of the present invention is a polymer dissolving device comprising: a first plate having a first hot wind guide means adjacent to the circumference of the conveying screw and having both ends fixed to a corresponding side surface of the feeder case; It is provided to be made of a second plate to form a first hot air transport path therebetween; The supply pipe of the hot air blower is connected to one side of the first hot air transport path, and the hot air outlet of the feeder case is connected to the other side of the first hot air transport path.

Another feature of the polymer dissolving device of the present invention is that the first plate has a shape bent along the circumference of the transfer screw so as to maximize the thermal efficiency transferred from the first plate to the circumference of the transfer screw.

Another feature of the polymer dissolving device is that the second hot wind guide means is provided around the screw cylinder outside the feeder case to form a second hot wind transport path so that hot air supplied from the first hot wind guide means is guided. The outer cylinder is formed with a through-hole for the discharge of the polymer is formed in the lower side of the discharge hole of the cylinder, and the auxiliary pipe is connected to the outer cylinder end of the inner side of the drying tank to guide the second hot air transport path to the outer side of the drying tank.

Another characteristic of the polymer dissolving device is that the third hot wind guide means comprises: a first type hose having one end connected to an end of the second hot wind guide means on the drying tank side and the other end connected to one side of the heating space of the drying tank; , A second type hose having one end connected to the other side of the heating space and the other end connected to the injector nozzle side.

Another feature of the polymer dissolving device of the present invention is that the valve is further provided with an external air inlet pipe connected to the drying tank so as to intercept external air from flowing into the drying tank.

Therefore, the polymer is dried in the process of feeding to the injector nozzle and in the process of feeding to the mixer from the injector nozzle, as well as the primary drying in the first transfer process from the hopper to the feeder case, and the transfer from the feeder case to the drying tank. Secondary drying during drying, and again drying while passing through the drying tank, so that it is dried several times reliably from the beginning of the transfer process of the polymer solves the problem that the polymer agglomerates and adheres and adheres to a specific part through several paths. In the end, the appropriate amount of polymer is automatically supplied smoothly and has the effect of dissolving at a predetermined concentration.

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

1 is a schematic cross-sectional view showing a polymer dissolving device according to the present invention, FIG. 2 is a cross-sectional view taken along line A-A 'of the drying tank of FIG. 1, and FIG. 3 is a first hot air guide means. Is a schematic partial cross-sectional view. Figure 4 is a schematic partial cross-sectional view showing a drying tank, Figure 5 is a schematic partial cross-sectional view showing a second hot air guide means, Figure 6 is a partial separation showing the discharge hole of the cylinder, the through hole of the outer cylinder and the auxiliary piece coupled thereto It is a cross section. 7 is a schematic partial cross-sectional view showing the blowing pressure distribution means, Figures 8 to 10 is a schematic perspective view, a partially cut front view, a partially cut side view showing a third hot air guide means.

The polymer dissolving device of the present invention, as described above, is provided at the initial line of the polymer supply, that is, at the bottom of the hopper, and concentratedly drying and drying the transfer screw for transporting the polymer in the feeder case into which the polymer is introduced and the polymer in the feeder case to the drying tank. The drying efficiency of the tank was doubled to prevent the polymer from adhering to and sticking to the above-described parts, thereby automatically supplying the polymer in the hopper smoothly and appropriately, and the specific configuration thereof is as follows.

1 and 2, the polymer dissolving device of the present invention includes a hopper 2, a feeder case 4 provided under the hopper, and a polymer provided from one side of the feeder case 4 and supplied therefrom. A drying tank 200 for drying the feeder 12 and a feed screw 12 installed between the feeder case 4 and the drying tank 200 to transfer the polymer in the feeder case 4 to the drying tank 200; The injector nozzle 18 which is provided below the tank 200 and supplies the polymer supplied from it at high speed, the mixer 20 which mixes the polymer injected from the injector nozzle with a solvent, and mixes with a solvent by the mixer 20 It is divided into a dissolution tank 22 which dissolves and stores the polymer.

Here, the feeder case 4 is provided with a first hot air guide means 100 according to a feature of the present invention, and a second hot air guide means 300 is provided between the feeder case 4 and the drying tank 200. One side of the drying tank 200 is provided with a third hot air guide means 500, and a blowing pressure distribution means 400 is further provided between the feeder case 4 and the second hot air guide means.

First, the feeder case 4 which is provided at the lower side of the hopper 2 and into which the polymer is introduced therefrom, is connected to the supply pipe 10 of the hot air blower 8 at one lower side thereof, and has a hot air discharge outlet at the other side thereof, as shown in FIG. 6) is formed, a portion of the transfer screw 12 is rotated by the driving of a motor (not shown) to transfer the polymer in the feeder case (4).

As described above, the transfer screw 12 has one side located inside the feeder case 4 and the other side inside the drying tank 200 to be described later, and transfers the polymer in the feeder case 4 to the drying tank 200 side. The cylinder 14 is installed around the transfer screw 12 to guide the polymer to be transferred along the transfer screw 12. Here, the discharge hole 16 is formed at the lower end of the cylinder 14 located inside the drying tank 200, as clearly shown in FIG. 6, and the polymer transferred from the feeder case 4 to the drying tank 200. Is injected into the inner case 204 of the drying tank 200.

The drying tank 200 provided at one side of the feeder case 4 includes an inner case 204 and an outer case 202 as shown in FIGS. 1, 2, and 4, and the inner case 204 is It is formed in a funnel shape so that the lower space than the upper space is formed, the lower end of the inner case 204 is connected to the inlet portion 19 of the injector nozzle 18.

The outer case 202 is provided on the outer circumference of the inner case 204, and thus the outer circumference of the inner case 204 is lower than the upper circumference of the inner case 204 while the outer case 202 is provided to surround the entire inner case 204. A wide heating space 206 is formed.

In the upper space of the inner case 204, the other end of the transfer screw 12 and the other end of the cylinder 14 surrounding the periphery of the transfer screw 12 are forced to transfer the polymer in the feeder case 4 to the inner case 204 of the drying tank 200. This is located.

An upper air inlet pipe 208 is connected to the top of the drying tank 200 to guide the outside air into the inner case, and the valve 210 is further provided in the outer air inlet pipe 208 according to the characteristics of the present invention. It is installed to interrupt the supply of external air into the inner case 204.

As shown in FIGS. 1 and 3, the first hot air guide means 100 is provided to be adjacent to the periphery of the conveying screw 12 and the first plate 102 having both ends fixed to the corresponding side surface of the feeder case 4. And a second plate 104 provided to be spaced apart from the first plate 102 to form a first hot air transport path 106 therebetween. The supply pipe 10 of the hot air blower 8 is connected to one side of the first hot air transport path 106 of the first hot air guide means 100, and the feeder case 4 is connected to the other side of the first hot air transport path 106. The hot air outlet 6 is connected.

The first hot air guide means 100 is provided around the feed screw 12 in the feeder case 4, one end of which is connected to the supply pipe 10 of the hot air fan 8, and the other end of which is connected to the hot air outlet 6. Therefore, the polymer transferred along the transfer screw 12 in the feeder case 4 is dried while the hot air supplied from the hot air blower 8 passes through the hot air outlet 6.

Here, in order to maximize the drying efficiency of the polymer by the first hot air guide means 100, it is preferable that the first plate 102 has a shape bent along the circumference of the transfer screw 12.

As shown in FIGS. 1 and 5, the second hot air guide means includes an outer cylinder 302 and an auxiliary pipe 308, and the outer cylinder 302 includes a transfer screw 12 outside the feeder case 4. The second hot air transport path 306 is formed around the cylinder 14 to guide the hot air supplied from the first hot air guide means 100, and one end of the outer cylinder 302 is blown pressure distribution means 400 to be described later. It is connected to the cover 402 of the) and the polymer through hole 304 is formed at the other end of the outer cylinder 302.

One side of the first cylindrical piece 310 is fixedly supported around the center portion of the outer cylinder 302, and the second cylindrical piece 312 is fixed to the other side of the first cylindrical piece 310 and the drying tank 200. The central portion of the outer cylinder 302 serves to support the drying tank (200).

The auxiliary pipe 308 is connected to the inner tank 302 end of the drying tank 200 to guide the second hot air transport path 306 to the outside of the drying tank 200 and the third hot wind guide means 500 to be described later. Is connected to.

FIG. 6 is a partially separated cross-sectional view showing the discharge hole 16 of the cylinder 14, the through hole 304 of the outer cylinder 302, and the auxiliary piece 318 coupled thereto, wherein the auxiliary piece 318 is a cylinder. It is fixed to the discharge hole 16 of the 14 and the through-hole 304 of the outer cylinder 302 serves to support the end of the cylinder 14 and the end of the outer cylinder 302 to each other, the transfer screw 12 and the cylinder ( 14) The polymer conveyed along the inside is smoothly discharged to the discharge hole 16 of the cylinder 14 and the through hole 304 of the outer cylinder 302.

The second hot air guide means 300 is provided around the cylinder 14 of the transfer screw 12 outside the feeder case 4 and receives the hot air transferred from the first hot air guide means 100, and the feeder case ( In 4) the polymer transferred to the drying tank 200 is dried second.

The blowing pressure distribution means 400 is installed between the first hot air guide means 100 and the second hot air guide means 300, so that the hot air passing through the first hot air guide means 100 receives the second hot air guide means ( When entering 300, it has a uniform blowing pressure around the second hot air guide means.

That is, since the hot air conveyed along the first hot air transport path 106 of the first hot air guide means 100 is supplied through the hot air outlet 6 of the feeder case 4, the second hot air guide means 300 may be used. If the second hot air path 306 is directly connected to the hot air outlet 6 of the feeder case 4, the hot air passing through the hot air outlet 6 is transferred to one side of the peripheral space of the second hot air outlet 306. It is blown in a biased state. In this case, an even blowing pressure may not be applied to the entire circumference of the second hot air transport path 306, and thus, the transport screw 12 may not be dried under the same conditions.

The air blowing pressure distribution means 400 of the present invention for solving such a problem is composed of a cover 402, a spacer 406, and a fixing plate 410, as shown in Figs.

The cover 402 has an inlet space 303 formed therein, and when the cover 402 is coupled to the outer cylinder 302 of the second hot air guide means 300, the inlet space 303 is connected to the second hot air transport path 306. )

The spacer 406 is provided between the side surface of the feeder case 4 and the cover 402 of the hot air outlet 6 side, and the inlet space 303 of the hot air outlet 6 of the feeder case 4 and the cover 402. Vent hole 408 is formed to connect the.

The fixing plate 410 has one side fixed to the spacer, and a circumference thereof is coupled to the inside of the inlet space 303 of the cover 402, and a connection hole connecting the vent hole 408 and the inlet space 303 of the spacer 406 ( 412 is formed. The fixing plate 410 not only connects the ventilation hole 408 of the spacer 406 and the inlet space 303 of the cover 402 but also increases the coupling force of the spacer 406 and the cover 402.

The third hot air guide means 500 is divided into a first type hose and a second type hose 506, as shown in Figs. 1, 2, and 8 to 10, and the second hot air guide means and drying are shown in Figs. A first auxiliary pipe 503, a second auxiliary pipe 504, a third auxiliary pipe 508, and a fourth auxiliary pipe 510 are provided to be connected to the tank and the injector nozzle 18.

Here, the first type hose 502, the first auxiliary pipe 503 is fixedly coupled to one end and the second auxiliary pipe 504 is fixedly coupled to the other end, the first auxiliary pipe 503 is a second hot air guide It is coupled to the auxiliary pipe 308 of the means 300, the second auxiliary pipe 504 is connected to the lower space of the drying tank 200, that is, the heating space 206 of the drying tank 200.

In the second type hose 506, the third auxiliary pipe 508 is fixedly coupled to one end thereof, and the fourth auxiliary pipe is fixedly coupled to the other end thereof. The third auxiliary pipe 508 is a heating space of the drying tank 200. 206 is connected to the other side, the fourth auxiliary pipe 510 is connected to the injector nozzle (18).

The third hot air guide means 500 is connected to the second hot air guide means 300, the drying tank 200, and the injector nozzle 18 so that hot air passing through the second hot air guide means 300 is dried in the tank. Through the heating space 206 of the 200, the interior of the interior is tertiarily dried.

Reference numeral 20 denotes a mixer 20 connected to the injector nozzle and mixing the polymer supplied therefrom with a solvent, and 22 is a dissolution tank connected to the mixer 20 to store and dissolve the polymer mixed with the solvent. .

In the polymer dissolving device of the present invention having such a configuration, when the polymer introduced into the hopper 2 is supplied into the feeder case 4, the feed screw 12 is rotated to transfer the polymer in the feeder case 4 to the drying tank 200. At the same time, the hot air generated by the hot air fan 8 is supplied to the first hot air guide means 100, the second hot air guide means 300, and the third hot air guide means 500 through the supply pipe 10. Inside the feeder case 4 and around the transfer screw 12, the drying tank is heated and dried.

First, the hot air introduced into one side of the first hot air transport path 106 of the first hot air guide means 100 through the supply pipe 10 is discharged to the hot air outlet 6 through the first hot air transport path 106. During the heating process, the lower portion of the feeder case 4, in particular, the first plate 102 is heated, thereby heating and drying the transfer screw 12 and the polymer around the first plate 102. It prevents the problem of contacting with the moisture and agglomerate and sticking to the transfer screw (12).

The hot air passing through the first hot air transport path 106 of the first hot air guide means 100 is transferred to the second hot air guide means 300 through the hot air outlet 6 and the blowing pressure distribution means 400. The blowing pressure of the hot air acting on the hot air outlet 6 of the feeder case 4, the vent hole 408 of the spacer 406, and the connection hole 412 of the fixing plate 410, which is a relatively narrow space, is larger than these. While being guided to the inlet space 303 side of the in-cover 402, it spreads to the whole and evenly acts on the entire inlet space 303, whereby the blowing pressure of the hot air guided into the inlet space 303 is transferred to the second hot air Evenly to the entire circumference of the furnace 306 to be smoothly blown.

Therefore, in the process of transferring the hot air from the first hot air guide means 100 to the second hot air guide means 300, vortices are generated so that the air is not blown properly, or the blowing pressure acts only on one side of the second hot air guide means 300. The problem is solved.

The hot air evenly transferred around the second hot air transport path 306 of the second hot air guide means 300 by the above-described air blowing pressure distribution means 400 is a cylinder passing between the feeder case 4 and the drying tank 200. (14) and the conveying screw 12, and the polymer conveyed by them are heated and dried.

Here, if the second hot wind guide means 300 according to the present invention is not provided in the portion of the cylinder 14 between the feeder case 4 and the drying tank 200, the circumference of the cylinder 14 is exposed to the outside. Therefore, the temperature and humidity of the outside is directly affected, and in this case, a fatal problem may occur in the polymer, such as condensation inside the cylinder 14 due to heat conduction.

Therefore, the second hot air guide means 300 according to the present invention not only prevents the periphery of the cylinder 14 from being exposed to the outside, but also allows the hot air to be guided evenly around the cylinder 14, thereby allowing the cylinder 14 to be transported. The screw 12, and serves to heat-dry the polymer therebetween.

As described above, the first hot air guide means 100 is heated and dried in the feeder case 4 by the second hot air guide means 300 while being transferred from the feeder case 4 to the drying tank 200. While being dried, the polymer transferred into the drying tank 200 is thirdly dried by the third hot wind guide means 500 while falling down the auxiliary piece 318.

That is, the hot air transported along the second hot wind transport path 306 of the second hot wind guide means 300 flows into the first type hose 502 of the third hot wind guide means 500 through the auxiliary pipe 308. After being guided to the heating space 206 below the drying tank 200. The hot air supplied to one side of the heating space 206 heats the lower portion of the inner case 204 opposite to the heating space 206, and then flows into the second type hose 506 through the third auxiliary pipe 508. Four auxiliary pipes 510 are supplied to the injector nozzle 18.

As described above, the inner case in the cylinder 14 while the hot air supplied from the second hot wind guide means 300 heats the heating space 206 of the drying tank 200 while passing through the third hot wind guide means 500. The polymer falling downward is heated and dried again while passing through the inner space of the inner case 204 around the heating space, and then supplied to the inlet 19 of the injector nozzle 18.

Here, the external air inlet pipe 208 is kept open by the valve 210 while the polymer is supplied to the injector nozzle 18 through the inside of the drying tank 200, but the operation of the polymer dissolving device of the present invention When stopped, the valve 210 is operated to block the external air inlet pipe 208 so that external air is prevented from entering the drying tank 200.

On the other hand, the polymer supplied to the inlet 19 of the injector nozzle 18 is injected by the injector nozzle 18 in the form of hot air and a Venturi tube (Venturi tube) via the third hot air guide means (500). Forced acceleration injection to the side), the polymer is mixed with the solvent while being introduced into the mixer 20, and then transported to the dissolution tank, it is stored.

As described above, in the present invention, the polymer is dried in the process of being supplied to the injector nozzle 18 and the process of being supplied to the mixer 20 from the injector nozzle 18, as well as the feeder case 4 in the hopper 2. In the first transfer process to be introduced into the first drying, the second drying while being transferred to the drying tank 200 in the feeder case (4), it is dried again while passing through the drying tank (200).

Therefore, the polymer dissolving device of the present invention reliably dries it several times from the beginning of the transfer process of the polymer, thereby solving the problem that the polymer aggregates and adheres and adheres to a specific part through various paths. It will have the effect of dissolving at a predetermined concentration.

Claims (8)

A hopper for storing the polymer, a feeder case installed under the hopper to feed the polymer into the hopper, and a feed screw provided with one end in the feeder case to transfer the injected polymer to the injector nozzle to be stored in the dissolution tank. In the polymer dissolution device, A feeder case having a hot air outlet formed at one side thereof; The polymer is installed around the transfer screw in the feeder case, one end is connected to the hot air outlet, and the other end is connected to the hot air outlet so that the hot air supplied from the hot air fan is transferred along the transfer screw in the feeder case while the hot air is passed through the hot air outlet. First hot air guide means for drying; It consists of a funnel-shaped inner case and the outer case surrounding the inner case, a heating space wider than the upper circumference is formed around the lower side of the inner case, the transfer inside the inner case so that the polymer transferred by the transfer screw is introduced A drying tank in which the other end of the screw and the cylinder end thereof are located; A second hot wind guide means installed around a cylinder of the transfer screw outside the feeder case and receiving hot air transferred from the first hot wind guide means to secondary dry the polymer transferred from the feeder case to a drying tank; A third hot wind guide connected to the second hot wind guide means, a drying tank, and an injector nozzle so that hot air passing through the second hot wind guide means is used to dry the interior of the drying tank three times through a heating space of the drying tank; Means for dissolving the polymer, characterized in that the device further comprises. The method of claim 1, A blowing pressure distribution means is installed between the first hot wind guiding means and the second hot wind guiding means to distribute the blowing pressure when the hot wind passing through the first hot blast guiding means enters the second hot wind guiding means. Polymer dissolving apparatus, characterized in that provided. According to claim 2, wherein the blowing pressure distribution means, A cover having an inlet space opposed to an entire circumference of one side of the second hot wind guide means, wherein the inlet space is connected to the second hot wind guide means, and between the side of the hot air outlet side feeder case and the cover; And a spacer having a vent hole for connecting the hot air outlet of the feeder case and the inlet space of the cover. The method of claim 1, wherein the first hot air guide means, A first plate installed adjacent to the transfer screw and fixedly supported at both ends of the feeder case, and spaced apart from the first plate to form a first hot air feed path therebetween. Done; The supply pipe of the hot air blower is connected to one side of the first hot air transport path, the polymer melter, characterized in that the hot air outlet of the feeder case is connected to the other side of the first hot air transport path. The method of claim 4, wherein Polymer dissolving apparatus characterized in that the first plate has a shape bent along the circumference of the transfer screw so as to maximize the thermal efficiency transferred from the first plate around the transfer screw. The method of claim 1, wherein the second hot air guide means, An outer cylinder which is provided around the cylinder of the transfer screw outside the feeder case and is formed with a second hot air transport path to guide the hot air supplied from the first hot air guide means, and a through hole for polymer supply is formed under the discharge hole of the cylinder; And an auxiliary pipe connected to the outer cylinder end to guide the second hot air transport path to the outside of the drying tank. The method of claim 1, wherein the third hot air guide means, A first type hose having one end connected to the end of the second hot air guide means for the drying tank and the other end connected to one side of the heating space of the drying tank, and one end connected to the other side of the heating space and the other end connected to the injector nozzle side A polymer dissolving device, comprising a second type hose. The method of claim 1, And a valve is further provided on an external air inlet pipe connected to the drying tank to intercept external air from flowing into the drying tank.

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