KR101920814B1 - High pressure pump with multi-power mixing - Google Patents

Abstract

The present invention relates to a high pressure fluid pump with a hybrid powder mixing function to extrude hybrid powder mixed with two or more kinds. The high pressure fluid pump comprises: a pump body in which a flow space is formed, an inlet port through which hybrid powder mixed with two or more kinds flows in is formed at one side, and an extrusion port through which the hybrid powder mixed with two or more kinds is extruded is formed at the other side; a screw disposed in the flow space, flowing the hybrid powder from the inlet port to the extrusion port, and mixing and pressurizing the hybrid powder; and a drive unit providing rotational force to the screw.

Description

{High pressure pump with multi-power mixing}

The present invention relates to a high pressure liquid pump having a composite powder mixing function.

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.

In addition, when two or more types of compound powder are introduced into the reactor, it is required to develop a pump that mixes two or more compound powders and applies pressure to two or more kinds of compound powders so that chemical reaction occurs by applying pressure.

Patent No. 10-1699727 (2017.01.19)

The present invention provides a high-pressure liquid pump having a composite powder mixing function for mixing two or more kinds of compound powders and applying a pressure to cause a chemical reaction.

A high-pressure liquid pump having a composite powder mixing function according to an embodiment of the present invention is a high-pressure liquid pump that extrudes a composite powder mixed with two or more kinds of materials, and a fluid space is formed therein. A pump body in which an inlet port and an extruded port through which the composite powder mixed with the two or more kinds are extruded is formed, and a composite powder mixed in at least two of the inlet and outlet ports arranged in the flow space is fed from the inlet port to the extrusion port A screw for applying pressure, and a driving unit for providing a rotational force to the screw.

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 extrusion blades of the extrusion portion may become narrower as the distance from the mixing portion increases.

The high pressure liquid pump having the composite powder mixing function may further include a heating unit surrounding the pump body and applying heat to the fluid space.

The temperature of the heating part may be 300 ° C to 400 ° C.

According to the embodiment of the present invention, the high-pressure liquid pump having the composite powder mixing function is applied to the tubular continuous isothermal reactor, so that the product can be continuously produced in a narrow space at a lower cost than the batch reactor. When two or more composite powders are introduced into the fluidized space, they are mixed in the mixing portion by being sent to the extruding portion by the screw, and the pressure is applied to the composite powder by the extruding portion in which the pitch is decreased toward the extruding portion. A polyimide-based polymer can be improved in productivity.

1 is a schematic view showing a tubular continuous isothermal reactor to which a high-pressure liquid pump having a composite powder mixing function is applied according to an embodiment of the present invention;
FIG. 2 is a schematic view of a high pressure liquid pump having the composite powder mixing function of FIG. 1;
3 is a perspective view showing the screw of Fig.
FIG. 4 is a graph showing a flow rate change according to the screw rotation of FIG. 3;

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 high-pressure liquid pump 20 having a composite powder mixing function according to an embodiment of the present invention will now be described with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a schematic view showing a tubular continuous isothermal reactor to which a high-pressure liquid pump having a composite powder mixing function according to an embodiment of the present invention is applied. FIG. 2 is a cross- FIG. 3 is a perspective view showing the screw of FIG. 2, and FIG. 4 is a graph showing a flow rate change according to the screw rotation of FIG.

Referring to FIGS. 1 to 3, a high-pressure liquid pump 20 having a composite powder mixing function according to an exemplary embodiment of the present invention includes two or more composite powders introduced into a tubular continuous isothermal reactor, Mix and extrude. The high pressure liquid pump 20 having a composite powder mixing function includes a pump body 21, a screw 23,

The pump main body 21 has a predetermined length. One side of the pump main 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 11a of the first support 11 And faces the upper surface 12a of the second support table 12 with a gap therebetween.

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 at least two kinds of compound powder into the flow space 211 is formed at one side of the pump body 21 and at least two kinds of compound powder are extruded through the flow space 211 Is formed. 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 two or more kinds of compound powder introduced into the flow space 211 including the screw main body portion 231, the inlet portion 232, the extruded portion 234 and the mixing portion 233 and is then extruded .

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 sends the introduced two or more kinds of compound powder 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 extruded portion 234 applies pressure to at least two kinds of compound powder sent from the inflow portion 232 and pushes it out of the pump main body 21 through the extrusion port 213. The pressure at which two or more composite powders are compressed may vary depending on the powder.

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 two or more kinds of composite powders sent through the inlet portion 232 when the screw main body portion 231 rotates. The mixed powder of two or more kinds is delivered to the extruding section 234 and the extruding section 234 extrudes the mixed powder of two or more mixed powders out of the pump main body 21 through the extrusion port 213.

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 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 vary depending on the design. The length 234L of the extruded portion 234 is longer than the length 232L of the inlet portion and the length of the mixing portion 233L so that a large pressure is applied to the composite powder of two or more kinds to be extruded.

The high pressure liquid pump having the composite powder mixing function according to an embodiment of the present invention may further include a heating unit.

The heating portion 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 heat is less than 300 ° C, the chemical reaction of two or more composite powders may be deteriorated. When the temperature exceeds 400 ° C, two or more composite powders may be damaged by heat. The heat of the heating portion 70a may vary depending on the kind of the composite powder of two or more kinds.

The heat applied to the flow space 211 preheats two or more kinds of compound powder flowing through the mixing part 233 and the extrusion part 234. At this time, a chemical reaction occurs in two or more compound powders.

The heating portion 70a is not limited to a heat ray and a surface heat emission element, and can be applied variously as long as heat can be applied to the flow space 211. [

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

On the other hand, the extrusion piping 30 is coupled to the extrusion port 213 of the pump body 21 according to the present embodiment. The inner circumferential diameter of the extrusion pipe 30 is smaller than the inner circumferential diameter of the pump main body 21. The pressure may increase when two or more composite powders mixed and extruded are extruded from the extrusion port 213 into the extrusion pipe 30. The extrusion piping 30 is provided with a temperature sensor 81 for sensing the temperature of the compound powder of two or more extruded powders and a pressure sensor 83 for sensing the pressure. The temperature sensor 81 and the pressure sensor 83 are electrically connected to the control unit 80. The control unit 80 having the temperature sensed by the temperature sensor 81 out of the set temperature controls the heating unit 70a to maintain the preheated state of the two or more composite powders flowing in the flow space 211 to the preset temperature do. The detailed structure of the 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.

A container 50 accommodating thermal oil is disposed between the extrusion pipe 30 and the upper surface 12a of the second support base 12. A reaction tube 40 connected to the extrusion pipe 30 is disposed inside the container 50, . Two or more composite powders extruded into the extrusion piping 30 are discharged through the reaction tube 40 and discharged through the heating portion 70b disposed on the outer circumference of the vessel 50, . The container 50 is provided with a temperature sensor 82 for measuring the temperature of the heat medium oil and the temperature sensor 82 is electrically connected to the control unit 80.

At the end of the reaction tube (40), a valve (60) for controlling the flow rate of two or more composite powders is disposed. When the valve 60 is completely opened, the flow rate of flow of the composite powder is increased, and if the valve 60 is kept close to the closed state, the chemical reaction time of the composite powder may increase.

Next, the operation of the high-pressure liquid pump having the composite powder mixing function described above will be described with reference to Figs. 1 to 4. Fig.

At least two kinds of compound powders are simultaneously introduced into the pump main body 21 through the inlet 212. Two or more kinds of composite powders may be mixed while passing through the mixing portion 233 while being moved in the direction of the extrusion port 213 through the inlet portion 232 by the rotation of the screw 23. At this time, as shown in FIG. 4, the flow rate of two or more kinds of compound powder flowing in the flow space 211 may vary according to the rotation speed of the screw 23. That is, as the rotational speed of the screw 23 increases, the flow rate of the composite powder of two or more kinds may increase.

Two or more composite powders having passed through the mixing portion 233 are moved to the extrusion port 213 by the extrusion portion 234 and two or more kinds of the compound powder are subjected to pressure by the pitch interval of the extrusion blades 234a, (Not shown). At this time, due to the heat of the heating part 70a and the pressure to be extruded, a chemical reaction may occur in the composite powder of two or more kinds.

Two or more composite powders extruded into the extrusion pipe 30 flow through the reaction tube 40 and chemical reaction occurs again in the composite powder of two or more kinds by the heat applied in the heating portion 70b.

When two or more composite powders flow into the flow space 211, they are sent to the extruding port 213 by the screw 23 and mixed in the mixing portion 233, and the extruding blades 234a are moved toward the extrusion port 213, The pressure is applied to the composite powder by the extrusion portion 234 in which the pitch is decreased, and the chemical reaction is generated by the heat applied from the heating portion 70a, so that the productivity of the polyimide-based polymer can be improved.

In the above description and drawings, the high-pressure liquid pump having the composite powder mixing function is applied to the tubular continuous isothermal reactor, and the two or more composite powders introduced are mixed and extruded. However, the high-pressure liquid pump having the composite powder mixing function It can be applied to various fields if mixing and compressing two or more kinds of powders. Therefore, the high-pressure liquid pump having the composite powder mixing function according to the present embodiment is not limited to being applied to the tubular continuous isothermal reactor.

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.

11: first support 12: second support
11a, 12a: upper surface
20: High pressure liquid pump with compound powder mixing function
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
50: vessel 60: valve
70a, 70b: a heating unit 80:
81, 82: Temperature sensor 83: Pressure sensor

Claims (4)

By extruding composite powder mixed with two or more kinds,
A pump main body having a flow space formed therein and having an inlet through which the composite powder mixed with two or more kinds is introduced and an extrusion port through which the composite powder mixed with two or more kinds is extruded,
A screw disposed in the flow space and mixing and pressurizing the introduced compound powder mixed in the direction of the extrusion port from the inlet port,
And a driving unit
/ RTI >
Preferably,
A screw main body portion that is connected to the driving portion and has a predetermined length,
An inflow portion adjacent to the inflow port and contacting the inner circumferential surface of the flow space at one side of the screw main body portion and having an inflow vane formed in a spiral shape along the circumferential direction,
An extruding portion adjacent to the extrusion port and contacting the inner circumferential surface of the flow space at the other side of the screw body and formed in a spiral shape along the circumferential direction;
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 >
Wherein the inlet wing and the protrusion are in contact with the extrusion blades, respectively, in the inner circumference of the flow space in contact with the inlet vane and the inner circumference of the flow space in contact with the extrusion wing, The length 234L of the extrusion portion is longer than the length 232L of the inflow portion and the length 233L of the mixing portion and the length 232L of the inflow portion is longer than the length 233L of the mixing portion, Longer,
The other end of the pump body forming the extrusion port is formed in such a manner that the diameter gradually decreases. One side of the pump body is positioned on the upper surface 11a of the first support and is supported by a support bracket, (12a) of the second support is located on a second support, which is connected to the first support and is separated from the upper surface (11a) of the first support, and faces the upper surface And a container through which the composite powder mixed with the two or more components extruded in the extruding port passes is disposed
High pressure liquid pump with composite powder mixing function. delete The method of claim 1,
Further comprising a heating part surrounding the pump body and applying heat to the fluid space. 4. The method of claim 3,
And the temperature of the heating unit is 300 ° C to 400 ° C.

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