KR100919793B1 - Thickening Apparatus Using Microwave - Google Patents

Abstract

A support frame, a condenser that is fixed to the support frame and stores a solution to be concentrated so that the concentrating speed can be improved and takes up less space, and a microwave irradiation device which evaporates the solution by irradiating microwaves inside the concentrator. It provides a concentrating device using a microwave including a stirring device for stirring the solution to be concentrated in the condenser, and a heat exchanger for cooling as the solution to be condensed from the condenser is evaporated and transported.

Description

Thickening Apparatus Using Microwave

The present invention relates to a concentrator using microwaves, and more particularly, to evaporate a solution to be concentrated by irradiating microwaves, and then, to generate water vapor to be discharged to the outside, and to recover the liquefied solution and evaporate again. The present invention relates to a concentrating device using microwaves configured to be concentrated by repeating.

In general, a concentrator is widely used to increase the concentration of the solution by removing the solvent in the solution.

The concentrator is mainly configured to obtain a concentrate as the liquid is placed inside the vessel and evaporated by applying heat.

That is, the concentrator includes a concentrating tank for storing a solution to be concentrated, a heating device that applies heat to evaporate a solution stored in the concentrating tank, a steam discharge pipe for discharging steam generated by evaporating the solution, and the concentrating tank. It is composed of a concentrate discharge pipe which discharges the remaining concentrated material as it discharges steam from the outside.

In the past, the heating device is mainly used in the direct heating method of directly applying a flame directly to the concentration tank, in this case, the fuel costs are consumed a lot, the thermal efficiency is lowered, the life of the concentration tank is easily reduced.

Therefore, conventionally, in order to solve the above problems, a concentrator using a heating apparatus of applying a high temperature steam to the condenser using a high temperature steam boiler has been developed and used in various industrial fields.

As a conventional steam concentrator configured as described above uses a steam boiler, the price increases and occupies a lot of installation space.

And it takes a relatively long time to generate the first steam, a relatively long time to concentrate the solution, there is a problem that takes a long time to control the temperature of the steam.

The present invention has been made in view of the above, it is configured to repeat the process of discharging the water vapor generated by cooling and then evaporating the liquid to be concentrated by microwaves and recovering the liquefied solution and evaporation again. It is possible to quickly concentrate the solution without a separate heat source and preliminary operation, and to provide a concentrating device using a microwave capable of saving an installation space, an object thereof.

The concentrating device using the microwave proposed by the present invention includes a support frame, a concentrating container fixed to the support frame and storing a solution to be concentrated, a microwave irradiation device for evaporating a solution by irradiating microwaves into the concentrating container; It includes a stirring device for stirring the solution to be concentrated in the concentration vessel, and a cooling device for generating a liquefied solution and vapor by cooling as the solution to be concentrated is evaporated and transferred from the concentration vessel.

The thickening container is formed in a cylindrical shape with both sides opened and includes a body which is supported by lying on top of the support frame, and a pair of lids which respectively seal both open ends of the body.

The microwave irradiation device is a magnetron for generating a microwave having a predetermined frequency, one end is connected to the magnetron and the other end is connected to the thickening vessel and the microwave generated from the magnetron inside the thickening vessel It consists of a waveguide leading to the.

The stirring device is a rotational power source, a stirring shaft which receives the rotational force of the rotary power source and repeats the forward and reverse rotation continuously and both ends are rotatably supported on the cover of the concentration vessel, respectively, around the outer peripheral surface of the stirring shaft It comprises a stirring blade which is connected to form a predetermined interval through a plurality of connecting rod and the stirring shaft is formed in a spiral.

The cooling device is formed in a cylindrical shape and partitioned into two inner spaces by partition plates installed in the central portion, and a refrigerant inlet is formed to introduce refrigerant into one of the two inner spaces, and the refrigerant is discharged from the remaining inner spaces. At least one of the inlet and outlet tanks formed with a refrigerant outlet, pipe-like, bypass the partition plate and connect the two inner spaces to each other and formed to contact the surface in a large area as the solution to be concentrated is evaporated and transported It comprises a heat exchange tube and a heat exchange tank made of a tubular shape and sealed by wrapping the heat exchange tube at regular intervals and the vapor outlet is formed.

The heat exchange tank may be installed to be inclined so that the height is gradually lowered from one end to the other end.

One end of the enrichment vessel and one end of the heat exchange tank are connected to each other through an evaporation transfer pipe for evaporating and transferring the solution to be concentrated in the enrichment vessel, and the other end of the enrichment vessel and the other of the heat exchange tank. The ends are connected to each other via a solution return pipe which is cooled in a heat exchange tank and conveys a liquefied solution.

The solution return tube may be connected to a concentration injection tube into which the solution to be concentrated is injected.

According to the concentrating device using the microwave according to the present invention, since a heating device such as a steam boiler is not required, it is possible to supply at a relatively low price, and it is also possible to increase the space utilization because it takes up less installation space.

In addition, since it is not necessary to separately control the preheating time for steam generation and the temperature control for raising or lowering the steam temperature, it is possible to shorten the time required to concentrate the solution and greatly improve the user's convenience.

In addition, according to the concentrating device using microwaves according to the present invention, since the seeker is installed in the concentrating container, it is possible to easily grasp the internal state and the like while seeing the inside.

Furthermore, according to the concentrating device using the microwave according to the present invention, since the stirring blade of the spiral is stirred while rotating the solution to be concentrated, the solution is evenly mixed while being evenly mixed.

Furthermore, according to the concentrating device using the microwave according to the present invention, since the steam generated by the cooling device is discharged to the outside and the liquefied solution is circulated to evaporate again, the structure is relatively simple and can be easily concentrated in a short time. .

1 is a perspective view showing an embodiment of a concentration apparatus using a microwave according to the present invention.

Figure 2 is a side view showing an embodiment of the concentration apparatus using a microwave according to the present invention.

Figure 3 is a front view showing an embodiment of the concentration apparatus using a microwave according to the present invention.

Figure 4 is a front sectional view showing a concentration vessel and a stirring device in one embodiment of the concentration apparatus using a microwave according to the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

Figure 6 is an enlarged cross-sectional view showing a see through in one embodiment of the concentration apparatus using a microwave according to the present invention.

Figure 7 is a side cross-sectional view showing a microwave irradiation apparatus in an embodiment of the concentration apparatus using a microwave according to the present invention.

8 is a perspective view showing a cooling apparatus in one embodiment of the concentration apparatus using microwaves according to the present invention.

Figure 9 is a partial cross-sectional front view showing a cooling device in one embodiment of a concentrator using microwaves according to the present invention.

Figure 10 is a side cross-sectional view showing a cooling device in one embodiment of a concentrator using microwaves according to the present invention.

Figure 11 is a partially enlarged cross-sectional view showing a cooling device in one embodiment of a concentrator using microwaves according to the present invention.

12 is a block diagram showing a process of performing concentration using an embodiment of a concentration apparatus using microwaves according to the present invention.

In one embodiment of the concentration apparatus using the microwave according to the present invention, as shown in Figures 1 to 3, the support frame 10, the solution to be concentrated therein is stored and installed on the upper portion of the support frame 10 Concentrated vessel 20, the microwave irradiation device 60 is installed on top of the concentration vessel 20, the stirring device 50 for stirring the solution to be concentrated, and connected to the concentration vessel 20 and concentrated It comprises a cooling device 80 for cooling as the solution to be evaporated and transported.

The support frame 10 includes an upper plate 11 and a plurality of legs 12 supporting the upper plate 11.

The legs 12 may be provided with wheels 14 to facilitate movement.

As shown in FIGS. 4 and 5, the thickening container 20 has a cylindrical body 21 having both end surfaces opened, and a pair of lids 26 for sealing the open ends of the body 21, respectively. It is made, including.

The body 21 is installed lying down at a certain height from the upper plate 11 of the support frame 10.

The body 21 or the cover 26 is fixed to a position away from the upper plate 11 of the support frame 10 by a predetermined height through a pair of first support (16).

On the upper side of the body 21 is formed a concentrate injection tube 22 for injecting a solution to be concentrated. And the lower side of the body 21 is formed with a discharge port 23 so that the discharge is made as the concentration of the solution is completed.

The body 21 may be formed with one or more transparent parts that can see through the interior at regular intervals.

As shown in FIG. 6, the see-through part 30 includes a through hole 31 penetrating through the body 21, a perforated plate 36 disposed across the through hole 31, and the perforated plate 36. It includes a viewing window 34 installed above, and a fixing cap 32 to closely contact the perforated plate 36 and the viewing window 34 to the body 21.

The fixing cap 32 is fixed to the body 21 of the concentration vessel 20 through a fixing bolt 38 or the like.

3 to 5, the stirring device 50 includes a rotational power source 51, a stirring shaft 56 for continuously repeating forward and reverse rotation, and an outer circumferential surface of the stirring shaft 56. It comprises a stirring blade 58 is formed.

The rotary power source 51 is made using a motor 51 capable of forward and reverse rotation and is installed on the upper plate 11 of the support frame 10.

Both ends of the stirring shaft 56 are rotatably supported by the cover 26 of the concentrating container 20, and the rotational force of the motor 51 is transmitted through the transmission device 52.

As the transmission device 52, a chain transmission device, a gear transmission device, a belt transmission device, or the like is used.

Taking the chain transmission device as an example, the chain transmission device 52 is a drive sprocket wheel 53 provided on the shaft of the motor 51 and a driven sprocket wheel (one of the ends of the stirring shaft 56) ( 54 and a chain 55 connecting the drive sprocket wheel 53 and the driven sprocket wheel 54.

The stirring blade 58 is formed by forming a spiral around the outer peripheral surface of the stirring shaft 56.

The stirring blade 58 is fixedly installed at regular intervals from the stirring shaft 56 through a plurality of connecting rods (57).

The microwave irradiation device 60 is configured to evaporate the solution by irradiating microwaves inside the concentration vessel 20.

For example, the microwave irradiation device 60, as shown in Figure 7, the magnetron 62, one end is connected to the magnetron 62 and the other end is the body of the concentration vessel 20 It is connected to (21) and comprises a waveguide 66 for guiding the microwaves generated from the magnetron 62 into the concentration vessel 20.

The magnetron 62 generates a microwave having a predetermined frequency.

The waveguide 66 is approximately vertically connected to the upper portion of the center of the body 21 of the enrichment vessel 20.

In the above, a tuner (tuner) may be installed at the center of the waveguide 66.

As shown in FIGS. 8 and 9, the cooling device 80 includes an inlet and outlet tank 82 in which a refrigerant inlet 86 and a refrigerant outlet 87 are formed, and at least one heat exchange tube 90 through which the refrigerant passes. And a heat exchange tank 92 surrounding the heat exchange tube 90.

As shown in FIGS. 10 and 11, the entry and exit tank 82 has a first inner space through which the refrigerant flows through the refrigerant inlet 86 by a partition plate 83 formed in a cylindrical shape and installed in a central portion thereof. 84) and the second inner space 85 through which the refrigerant is discharged through the refrigerant outlet 87.

The refrigerant inlet 86 and the refrigerant outlet 87 are connected to the refrigerator 81.

The heat exchange pipe 90 bypasses the partition plate 83 in a “U” shape and connects the first inner space 84 and the second inner space 85 to each other.

The heat exchange tank 92 is formed in a tubular shape and is formed to have a steam outlet 94 formed to discharge steam generated therein, and to wrap and seal the heat exchange tube 90 at regular intervals.

The heat exchange tank 92 may be provided with a pressure gauge, a thermometer.

The heat exchange tank 92 and the concentration vessel 20 are connected to each other through the evaporation transfer pipe 40 and the solution recovery pipe 42, respectively.

That is, by connecting one end of the concentration vessel 20 and one end of the heat exchange tank 92 through the evaporation transfer pipe 40, the solution to be concentrated is evaporated from the concentration vessel 20 as it is evaporated. The heat exchange tank is transferred to the inside of the tank 92 by connecting the other end of the condensation vessel 20 and the other end of the heat exchange tank 92 to each other through the solution return pipe 42. The solution liquefied at 92 is transferred to the concentration vessel 20.

The solution return pipe 42 may be connected to the concentrate injection pipe 22 for injecting the solution to be concentrated.

The cooling device 80 as described above is installed higher than the concentration vessel 20 and is fixedly supported from the upper plate 11 of the support frame 10 through the second support 18.

The heat exchange tank 92 is installed to be inclined so that the height is gradually lowered from one end to the other end so that the liquefied solution is naturally discharged into the solution recovery pipe 42.

In the heat exchange tank 92, a pair of support legs 96 may be formed so that both ends are fixedly supported by the second support 18 inclined at a predetermined height difference.

Next, an operation process of the concentration apparatus using the microwave according to the present invention made as described above will be described with reference to the drawings.

First, in order to concentrate the solution, the solution to be concentrated through the concentrate injection pipe 22 is injected into the concentration vessel 20.

Then, the stirring shaft 56 of the stirring apparatus 50 is rotated to uniformly stir the solution to be concentrated in the concentration vessel 20. (See FIG. 4).

In addition, a low temperature refrigerant is introduced into the refrigerant inlet 86 formed in the inlet / outlet tank 82 of the cooling device 80 and discharged through the heat exchange tube 90 to the refrigerant outlet 87. )

Then, when the microwave irradiation device 60 is operated, microwaves are irradiated into the concentration vessel 20, and thus the solution to be concentrated begins to evaporate.

As the solution to be concentrated is evaporated, the solution is introduced into the heat exchange tank 92 of the cooling device 80 through the evaporation transport tube 40, and is cooled and liquefied while being in contact with the heat exchange tube 90 to generate steam.

The steam is discharged through the steam outlet 94, and the cooled liquefied solution is transferred to the concentration vessel 20 through the solution recovery pipe 42 and the concentrate inlet 22, and then repeats the above process. To circulate.

In the above description of the preferred embodiment of the microwave concentrating device according to the present invention, the present invention is not limited to this, but the present invention is not limited to the claims and the detailed description of the invention, it is to be variously modified within the scope of the accompanying drawings. It is possible and this also falls within the scope of the present invention.

Claims (9)

Support frame, A condensation vessel fixed to the support frame and storing a solution to be concentrated; A microwave irradiation device for evaporating a solution by irradiating microwaves into the concentration vessel; A stirring device for stirring the solution to be concentrated in the concentration vessel; Concentrating apparatus using a microwave including a cooling device for generating a liquefied solution and steam by cooling as the solution to be concentrated from the concentration vessel is evaporated and transported. The method according to claim 1, The cooling device is formed in a cylindrical shape and partitioned into two inner spaces by partition plates installed in the central portion, and a refrigerant inlet is formed to introduce refrigerant into one of the two inner spaces, and the refrigerant is discharged from the remaining inner spaces. At least one of the inlet and outlet tanks formed with a refrigerant outlet, pipe-like, bypass the partition plate and connect the two inner spaces to each other and formed to contact the surface in a large area as the solution to be concentrated is evaporated and transported Condensing apparatus using a microwave and a heat exchange tube made of a tubular shape and wrapped around the heat exchange tube at regular intervals and sealed and a steam outlet is formed. The method according to claim 2, One end of the condensation vessel and one end of the heat exchange tank are connected to each other through an evaporation transfer pipe for evaporating and transporting the solution to be concentrated in the condensation vessel, The other end of the concentration vessel and the other end of the heat exchange tank is a concentrator using microwaves are connected to each other through a solution return pipe that is cooled in the heat exchange tank to transfer the liquefied solution. The method according to claim 3, The solution return pipe is connected to the concentration injection pipe is injected, the solution to be concentrated, The concentrating device using a microwave is formed in the condensation vessel discharge port for discharging to the outside as the concentration of the solution is completed. The method according to claim 2 or 3, The heat exchange pipe is formed to form a "U" shape, The heat exchange tank is a concentrator using microwaves are formed to be inclined so that the height is gradually lowered from one end to the other end. The method according to claim 1, The condensing container includes a body formed in a cylindrical shape with both sides opened and supported on the upper side of the support frame, and a pair of lids for respectively sealing both open ends of the body, The stirring device is a rotational power source, a stirring shaft which receives the rotational force of the rotary power source and repeats the forward and reverse rotation continuously and both ends are rotatably supported on the cover of the concentration vessel, respectively, around the outer peripheral surface of the stirring shaft Concentrating apparatus using a microwave including a stirring blade which is formed at a spiral to be connected at regular intervals through the stirring shaft and a plurality of connecting rods. The method according to claim 6, One or more transparent parts are formed on the body of the container at regular intervals so as to see the inside thereof, The see-through part uses a microwave including a through-hole penetrating the body of the concentrating container, a perforated plate installed to block the through-hole, a see-through window installed on the perforated plate, and a fixing cap for fixing the perforated plate and the see-through window to the body. Thickener. The method according to claim 1, The microwave irradiation device is a magnetron for generating a microwave having a predetermined frequency, one end is connected to the magnetron and the other end is connected to the thickening vessel and the microwave generated from the magnetron inside the thickening vessel Concentrator using a microwave containing a waveguide leading to the. The method according to claim 1, The support frame includes a top plate, legs for supporting the top plate, wheels installed on the legs, a first support for supporting a condensation vessel at a constant height from the top plate, and supporting the cooling device at a constant height from the top plate. Concentrator using a microwave including a second support to.