KR20190000012A - Coil type continuous reactor for high viscosity liquid - Google Patents

Abstract

The present invention relates to a coil type continuous reactor for a high viscous chemical liquid. The present invention comprises: a mixing pump, which extrudes an introduced high viscous chemical liquid; a reaction tube, which is connection to an extrusion hole of the mixing pump and which enables the high viscous chemical liquid to flow therethrough; a housing which contains a heat transfer medium therein and through which the reaction tube passes; a valve which is connected to the extrusion hole of the reaction tube, escaped from the housing; first and second heating parts which are located at each of the mixing pump and the housing and apply heat to the high viscous liquid. The high viscous liquid reacts by heat, applied by the second heating part while flowing through the reaction tube and sets a reaction time of the high viscous liquid by adjusting the valve. The coil type continuous reactor for the high viscous chemical liquid is a tube type continuous isothermal reactor, which is more cost effective than a batch reactor and can successively produce a product in a small space.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a co-

The present invention relates to a coil type high viscosity chemical liquid continuous reactor.

With the miniaturization, high performance, high reliability, and innovative changes of semiconductor processing technology for electric / electronic devices for information technology (IT), it is necessary to develop an organic light emitting diode (OLED) The constituent materials are required to have very high heat resistance and flexibility.

Polyimide (PI) -based polymers as substrate materials for next-generation flexible organic light emitting diodes are used as typical heat-resistant materials due to their excellent heat resistance and various properties. Particularly, it is necessary to put the modified PI resin having improved solubility into practical use as a heat resistant material such as polyesterimide (PEsI), polyamide-imide (PAI) and aliphatic polyimide resin.

The development of such highly heat resistant flexible polyimide resins is dominated by some advanced countries such as the United States, France, Germany, and Japan, with original technology in the highly value added industry (annual average growth rate of over 100%). There is a difficulty in manufacturing a high-level technology from molecular design to synthesis / equipment processing. Particularly, in the case of soluble polyimide materials for electronic parts, the degree of technology monopolization is greatly increased due to improved transparency, durability and improved flexibility as applied to liquid crystal display devices (decay and flexibility next generation organic light emitting diode materials).

In accordance with the tendency toward lightening and softening of organic light emitting diode displays, attempts to introduce silicon (Si) atoms into the precursors of polyimide for the next generation organic light emitting diode substrate are being developed, leading to producers of silicon derivatives. Equipment and processes for the production of silicon precursors for polyimide production are strictly confidential in each company, and it is necessary to develop silicon precursors for polyimide manufacturing by new process / equipment. Therefore, a reactor is required to produce such polyimide-based polymers.

Registration No. 10-1711243 (February 22, 2017)

The present invention provides a coil-type high-viscosity chemical liquid continuous reactor for producing polyimide-based polymers.

A coil type high viscosity chemical liquid continuous reactor according to an embodiment of the present invention includes a mixing pump for extruding an introduced high viscosity liquid, a reaction tube connected to an extrusion port of the mixing pump, a reaction tube through which the high viscosity liquid flows, A valve coupled to an outlet of the reaction tube outside the housing, and a valve disposed in the mixing pump and the housing, respectively, and configured to apply heat to the high-viscosity liquid, Wherein the high-viscosity liquid reacts by heat applied by the second heating unit when flowing through the reaction tube, and the reaction time of the high-viscosity liquid is set by the adjustment of the valve.

The reaction tube may include a coil part arranged in the housing and having a helical shape, a connection part connecting the one end of the coil part and the extrusion port of the mixing pump located outside the housing, And may include a connected discharge.

Wherein the coil type high viscosity chemical liquid continuous reactor comprises a first temperature sensor disposed in an extruding port of the mixing pump for sensing a temperature of the high viscosity liquid, a second temperature sensor disposed in the housing for sensing a temperature of the heating medium, A pressure sensor disposed in an extrusion port of the mixing pump to sense an extrusion pressure of the high viscosity liquid, and a controller electrically connected to the first temperature sensor, the second temperature sensor, and the pressure sensor .

The temperature of the first and second heating units may be 300 ° C to 400 ° C.

The high viscosity chemical liquid continuous reactor may further include a table for supporting the mixing pump and the housing.

The heating medium may be silicone oil.

The mixing pump includes a pump body having a flow space formed therein, an inlet port through which the high-viscosity liquid flows, and a pump body formed on the other side of the extrusion port through which the high-viscosity liquid is extruded, And a driving unit for supplying a rotating force to the screw, wherein the first heating unit can surround the outer periphery of the pump body.

The screw includes a screw main body portion that is connected to the driving portion and has a predetermined length, an inlet portion formed in a spiral shape along the circumferential direction at one side of the screw main body portion adjacent to the inlet, An extruding portion formed in a spiral shape along the circumferential direction on the other side of the screw body and a mixing portion located between the inflow portion and the extruding portion and arranged in a spiral shape along the circumferential direction in the central portion of the screw body And the pitch of the inlet vane pitch of the extruded portion may become narrower as the distance from the mixing portion increases.

According to the embodiment of the present invention, the coil-type high-viscosity chemical liquid continuous reactor is a tubular continuous isothermal reactor, which is inexpensive and can continuously produce products in a narrow space as compared with a batch reactor, The time during which the high-viscosity liquid is retained in the housing is increased, so that the time during which the chemical reaction takes place when the high-viscosity liquid flows through the nose portion is increased, so that the productivity of the polyimide-based polymer can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram showing a coil-type high-viscosity chemical liquid continuous reactor according to one embodiment of the present invention.
Fig. 2 is a schematic view of the pump unit of Fig. 1; Fig.
3 is a perspective view showing the screw of Fig.
Fig. 4 is a schematic view showing an isothermal holding portion of Fig. 1; Fig.
5 is a graph showing a flow rate change according to a valve opening / closing angle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

The reactor is a mechanism used to advance the chemical reaction and can be classified into three types as shown in [Table 1] below: shape, operating method and temperature distribution

shape manual Temperature distribution Stirring tank type
(Stirred tank) Batch
(Batch) Isothermal reactor
(Isothermal) Tubular
(Tubular) Continuous
(Continuous) Non-isothermal reactor
(Non-isothermal) - Semi-batch
(Semi-batch) -

The reactor according to the present embodiment is a tubular continuous isothermal reactor, and the continuous reactor is advantageous in that the product can be produced continuously in a narrow space at a lower cost than a batch reactor. Also, the tubular structure has the advantage of increasing the time for the chemical reaction to take place in the form of a coil.

A tubular continuous isothermal reactor (a coil-type high-viscosity chemical liquid continuous reactor) according to an embodiment of the present invention will now be described with reference to FIGS. 1 to 4. FIG.

[Figure 1] is a schematic view showing a coil-type high-viscosity chemical liquid continuous reactor according to one embodiment of the present invention, [Figure 2] is a schematic view showing the pump section of [Figure 1], and [Figure 3] Fig. 4 is a schematic view showing the isothermal holding portion of Fig. 1, and Fig. 5 is a graph showing a flow rate change according to the valve opening / closing angle.

Referring to FIGS. 1 to 5, a coil type high viscosity chemical liquid continuous reactor 1 according to an embodiment of the present invention includes a mixing pump 20, a first heating unit 70a, a reaction tube 40, a housing 50, a valve 60, and a second heating portion 70b to produce a polyimide-based polymer.

The coil-type high-viscosity chemical liquid continuous reactor according to one embodiment of the present invention may further include a table 10.

The table 10 comprises a first support 11 and a second support 12 and is the framework of a coil-like high-viscosity chemical liquid continuous reactor.

The first support 11 and the second support 12 have predetermined widths by combining the vertical frames 111 and 121 and the horizontal frames 112 and 122, respectively. The lower surfaces of the first support 11 and the second support 12 are located on the same line and the positions of the upper surfaces 11a and 12a are different. The upper surface 11a of the first support table 11 is higher than the upper surface 11a of the second support table 12 with respect to the lower surface. The upper surface 11a of the first support 11 and the upper surface 12a of the second support 12 form a step.

The mixing pump 20 includes a pump body 21, a screw 23 and a driving part 24 and is supported by a first support 11 to extrude the inflowing high viscosity liquid. The types of high viscosity liquids can vary widely depending on the use of a coil type high viscosity chemical liquid continuous reactor. Therefore, it is not limited to the high viscosity liquid type.

The pump main body 21 has a predetermined length. One side of the pump body 21 is located on the upper surface of the first support 11 and is supported by the support bracket 22 and the other side is located on the second support 12 out of the upper surface of the first support 11, (12).

The pump body 21 is formed in a cylindrical shape, and a flow space 211 is formed in the pump body 21 along the longitudinal direction thereof. An inlet 212 for introducing the high viscosity liquid into the flow space 211 is formed at one side of the pump body 21 and an extrusion port 213 for extruding the high viscosity liquid from the flow space 211 is formed at the other side have. The other end of the pump body 21 constituting the extrusion port 213 is formed in such a shape that the diameter gradually decreases, and the cross-section viewed from the front is a cone shape.

The screw 23 includes a screw main body portion 231, an inlet portion 232, an extrusion portion 234 and a mixing portion 233 and mixes and extrudes the high viscosity liquid introduced into the flow space 211.

The screw main body 231 is disposed in the flow space 211 and has one end exposed to the outside of the pump main body 21. The other end of the screw main body 231 is located at the extrusion port 213. A bearing (not shown) is disposed between the screw main body 231 and the pump main body 21 so that the screw main body 231 can rotate.

The inflow portion 232 is formed in a spiral shape with an inflow vane 232a along the circumferential direction from one side of the screw main body portion 231. [ The inlet 232 is connected to the inlet 212. The inflow vane 232a directs the introduced high viscosity liquid toward the extrusion port 213. [

The extrusion portion 234 is formed in a spiral shape in the circumferential direction on the other side of the screw main body portion 231. The extrusion portion 234 is connected to the extrusion port 213. The extrusion portion 234 applies pressure to the high viscosity liquid sent from the inlet portion 232 and pushes it out of the pump body 21 through the extrusion port 213. The extrusion pressure of the high-viscosity liquid can be variously changed depending on the kind of the high-viscosity liquid.

The mixing portion 233 is located between the inlet portion 232 and the extrusion portion 234 and the mixing protrusions 233a are formed in a spiral shape along the circumferential direction at the center portion of the screw main body portion 231. [ The mixing projections 233a have a predetermined length. The mixing protrusions 233a mix the high viscosity liquid sent through the inlet portion 232 when the screw body portion 231 rotates. The mixed high viscosity liquid is sent to the extruding section 234 and the extruding section 234 extrudes the mixed high viscosity liquid through the extrusion port 213 to the outside of the mixing pump 20.

The inner periphery of the flow space 211 in contact with the inflow vane 232a of the inflow portion 232 and the inner circumference of the flow space 211 in contact with the extrusion blades 234a of the push- 211a are formed. The projections touch the wings.

The length 234L of the extrusion portion 234 is longer than the length 232L of the inflow portion 232 and the length 233L of the mixing portion 233 and the length 232L of the inflow portion 232 is longer than the length 232L of the mixing portion 233, Is longer than the length 233L of the protrusion 233. The ratio of the inflow portion 232, the mixing portion 233, and the extrusion portion 234 may be 20:17:24. The ratio of the inflow portion 232, the mixing portion 233, and the extrusion portion 234 may vary depending on the design. The length 234L of the extruded portion 234 is longer than the length 232L of the inflow portion and the mixed portion 233L so that a large pressure is applied to the high viscosity liquid to be extruded.

The first heating part 70a is formed of a heat ray or a surface heating element and surrounds the outer circumference of the other side of the pump body 21 and applies heat to the flow space 211. [ The heat may be between 300 ° C and 400 ° C. When the temperature is less than 300 ° C, the chemical reaction efficiency of the high-viscosity liquid may be lowered. If the temperature is higher than 400 ° C, the high-viscosity liquid may be damaged.

The heat applied to the flow space 211 preheats the high viscosity liquid flowing through the mixing portion 233 and the extrusion portion 234. At this time, a chemical reaction occurs in the high-viscosity liquid.

The first heating portion 70a is not limited to the heating wire and the surface heating element, and may be variously applied as long as it can apply heat to the flow space 211.

Meanwhile, a heat insulating material (not shown) covers the first heating portion 70a to prevent heat loss of the first heating portion 70a.

An extrusion pipe (30) is coupled to the extrusion port (213). The inner circumferential diameter of the extrusion pipe 30 is smaller than the inner circumferential diameter of the pump main body 21. Accordingly, when the high viscosity liquid is extruded from the extrusion port 213 into the extrusion pipe 30, the pressure may increase. The extrusion piping 30 is provided with a first temperature sensor 81 for sensing the temperature of the extruded high viscosity liquid and a pressure sensor 83 for sensing the pressure. The first temperature sensor 81 and the pressure sensor 83 are electrically connected to the control unit 80. When the temperature sensed by the first temperature sensor 81 is out of the preset temperature, the controller 80 controls the first heating unit 70a so that the viscous liquid flowing in the flow space 211 is preheated to the preset temperature . The detailed structure of the first temperature sensor 81 and the pressure sensor 83 can be applied to sensors well known in the art for sensing temperature and pressure, and a detailed description of the structure is omitted.

The reaction tube 40 includes a connecting portion 41, a coil portion 42 and a discharge portion 43 so that the high viscosity liquid extruded from the mixing pump 20 flows to cause a reaction.

The connecting portion 41 is connected to the extrusion pipe 30 and the coil portion 42 is formed as a spiral and connected to the connecting portion 41 and the discharging portion 43 is connected to the coil portion 42. The connecting portion 41, the coil portion 42, and the discharge portion 43 are integrally formed. The viscous liquid extruded by the extrusion piping 30 flows into the interior through the connecting portion 41 and flows toward the discharge portion 43. The reaction tube 40 can be made of a material having excellent heat transfer.

The housing 50 is placed on the upper surface of the second support 12 and is positioned below the other side of the pump body 21 in which the extrusion portion 234 is located. The upper surface of the housing 50 is open. A coil portion 42 is located inside the housing 50. The connection part 41 is exposed to the outside of the housing 50 through the opened upper surface of the housing 50 and the discharge part 43 is exposed to the outside of the housing 50 through the lower surface of the housing 50. At this time, the discharge portion 43 may be located inside the second support 12.

In addition to the coil portion 42, a heat medium oil for transferring the heat transferred to the outside into the coil portion 42 may be accommodated in the housing 50. The thermal oil may be silicone oil.

The second heating unit 70b is formed in the same manner as the first heating unit 70a and is electrically connected to the control unit 80. [ The second heating portion 70b is disposed along the outer circumference of the housing 50 and applies heat to the inside of the housing 50. [ The heat may be between 300 ° C and 400 ° C. When the temperature is less than 300 ° C, the chemical reaction of the high-viscosity liquid may be deteriorated. When the temperature exceeds 400 ° C, the high-viscosity liquid may be damaged by heat.

Heat is transferred to the high-viscosity liquid flowing through the coil portion 42 through the heat medium oil, and the high-viscosity liquid is chemically reacted. On the other hand, since the high-viscosity liquid is preheated by the first heating unit 70a and chemical reaction occurs, the chemical reaction efficiency due to the heat of the second heating unit 70b can be improved.

A second temperature sensor 82 for sensing the heat of the second heating unit 70b is disposed in the second heating unit 70b and a second temperature sensor 82 is electrically connected to the control unit 80 have. The second temperature sensor 82 is the same as the first temperature sensor 81. When the temperature detected by the second temperature sensor 82 is out of the set temperature, the controller 80 may control the second heating unit 70b.

The valve 60 is coupled to the outlet 43 and the valve 60 regulates the flow rate of the viscous liquid flowing through the reaction tube 40. On the other hand, when the valve 60 is completely opened (0 °), the high-viscosity liquid flows through the reaction tube 40 to increase the flow rate. When the valve 60 is completely closed (90 °) The flow of the liquid does not occur and the reaction of the viscous liquid increases (see FIG. 5). The time during which the high-viscosity liquid flows through the reaction tube 40 by the flow rate control of the valve 60 may vary depending on the type of the high-viscosity liquid.

Next, the operation of the coil-type high-viscosity chemical liquid continuous reactor described above will be described with reference to [Figure 1] to [Figure 5].

Viscous liquid flows into the pump body (21) through the inlet (212). Two or more kinds of high viscosity liquid can be mixed while passing through the mixing part 233 while moving in the direction of the extrusion port 213 through the inflow part 232 by the rotation of the screw 23.

The mixed highly viscous liquid that has passed through the mixing portion 233 is moved to the extrusion port 213 by the extrusion portion 234 and the mixed high viscosity liquid is pressed by the pitch interval of the extrusion blades 234a, ). ≪ / RTI > The mixed high-viscous liquid may be preheated by heat applied in the first heating portion 70a. At this time, due to the heat of the first heating portion 70a and the pressure to be extruded, a chemical reaction may occur primarily in the mixed high-viscosity liquid.

The extruded mixed high-viscosity liquid flows into the reaction tube 40 and flows through the inside of the reaction tube 40. During the process of flowing through the coil part 42, the mixed high-viscosity liquid is chemically reacted by the heat of the second heating part 70b . The chemically reacted high-viscosity liquid is discharged through the discharge portion 43 to produce the polyimide-based polymer.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

1: coil type high viscosity chemical liquid continuous reactor 10: table
11: first support 12: second support
11a, 12a: upper surface 111, 121: vertical frame
112, 122: Horizontal frame 20: Mixing pump
21: pump body 211: floating space
212: inlet 213: extruder
22: support bracket 23: screw
231: screw body part 232: inlet part
232a: inflow wing 232L: inflow length
233: Mixing section 233a: Mixing projection
233L: mixing part length 234: extrusion part
234a: extrusion wing 234L: extrusion length
231p, 234p: pitch 24:
30: Extrusion piping 40: Reaction tube
41: connection part 42: coil part
43: discharge part 50: housing
60: valve 70a: first heating portion
70b: second heating unit 80:
81: first temperature sensor 82: second temperature sensor
83: Pressure sensor

Claims (8)

A mixing pump for extruding the inflowing high-viscosity liquid,
A reaction tube connected to an extrusion port of the mixing pump and through which the high viscosity liquid flows,
A housing through which the reaction tube is passed,
A valve coupled to a discharge portion of the reaction tube outside the housing,
The first and second heating units disposed in the mixing pump and the housing, respectively, for applying heat to the high-viscosity liquid,
/ RTI >
Wherein the high-viscosity liquid reacts by heat applied by the second heating unit when flowing through the reaction tube, and the reaction time of the high-viscosity liquid is set by the adjustment of the valve
Coil type high viscosity chemical liquid continuous reactor. The method of claim 1,
In the reaction tube,
A spiral coil portion disposed inside the housing,
A connecting portion which is located outside the housing and connects the one end of the coil portion to the extrusion port of the mixing pump,
And a discharge part (5) located outside the housing
/ RTI > a high-viscous chemical liquid continuous reactor in the form of a coil. The method of claim 1,
A first temperature sensor disposed in an extrusion port of the mixing pump for sensing a temperature of the high viscosity liquid,
A second temperature sensor disposed in the housing for sensing a temperature of the heating medium,
A pressure sensor disposed in an extrusion port of the mixing pump for sensing an extrusion pressure of the high-viscosity liquid;
A first temperature sensor, a second temperature sensor, and a control unit electrically connected to the pressure sensor,
Further comprising a high-viscosity chemical liquid continuous reactor. The method of claim 1,
Wherein the temperature of the first heating unit and the temperature of the second heating unit is 300 ° C to 400 ° C. The method of claim 1,
Further comprising a table supporting the mixing pump and the housing. The method of claim 1,
Wherein the thermal oil is a silicone oil. The method of claim 1,
The mixing pump includes:
Viscous liquid is formed on one side and the extruding port through which the high viscosity liquid is extruded is formed on the other side of the pump body,
A screw disposed in the flow space and leading the introduced high-viscosity liquid from the inlet to the extrusion port, and
And a driving unit
/ RTI >
Wherein the first heating portion surrounds the outer periphery of the pump body
Coil type high viscosity chemical liquid continuous reactor. 8. The method of claim 7,
Preferably,
A screw main body portion that is connected to the driving portion and has a predetermined length,
An inlet formed adjacent to the inlet and formed with a spiral inlet vane along a circumferential direction at one side of the screw body,
An extrusion portion adjacent to the extrusion and formed in a spiral shape in the circumferential direction at the other side of the screw body,
Wherein the mixing protrusions are arranged in a spiral shape along the circumferential direction at a central portion of the screw body, the mixing protrusions being positioned between the inlet portion and the extrusion portion,
/ RTI >
The pitch of the inlet vane pitch of the extruding portion becomes narrower as the distance from the mixing portion
Coil type high viscosity chemical liquid continuous reactor.

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