KR101468878B1 - Apparatus for drying waste in vacuum circumstances - Google Patents

Abstract

The present invention relates to a vacuum drying apparatus for lowering the water content of waste through low energy. The present invention is, as an embodiment of the present invention, to stir the wastes which are introduced into the interior of which the atmospheric pressure lower than the standard atmospheric pressure is formed, to discharge the heated circulating air heated at one side and the wet circulating air containing moisture evaporated at the other side A condensing water separating unit for separating and drying the condensed water in the circulating air discharged from the vacuum drying unit, a condenser for separating and drying the condensed water from the circulating air discharged from the vacuum drying unit, And a heating and supplying unit for heating the circulating air having a pressure lower than the atmospheric pressure by reheating and re-injecting the circulating air into the vacuum drying unit.

Description

[0001] Apparatus for drying waste in vacuum [

The present invention relates to a vacuum drying apparatus for lowering the water content of waste through low energy.

Waste disposal is an important environmental issue in cities, specialized agricultural and livelihood facilities, and so on. The generated waste contains a large amount of water and it is necessary to lower the water content for final treatment of the waste.

Drying of waste is usually carried out by using an apparatus for heating external energy. Some of the input energy uses electricity, oil, gas, etc., and the efficiency of converting it to thermal energy is only about 30% to 50%, which is low energy efficiency.

Therefore, various technologies have been developed to increase the drying efficiency for energy saving. For example, a technique has been proposed in which waste oil is mixed with an organic sludge, heated and dried in a state where the boiling point is lowered by vacuum decompression, and the waste oil is collected and reused.

Such conventional technology has a disadvantage that the working process is complicated and the initial equipment cost is high due to the use of the waste oil.

[Patent Document 1] Korean Published Patent Application No. 2008-0110969 (December 22, 2008) [Patent Document 2] Korean Published Patent Application No. 2008-0021571 (Mar. 07, 2008) [Patent Document 3] Korean Published Patent Application No. 2005-0120618 (2005.12.22)

The present invention aims at securing economic efficiency by increasing energy efficiency in drying so as to lower the water content of waste.

In order to achieve the above-mentioned object, the present invention provides a method for controlling a wastewater treatment system, comprising the steps of: stirring wastes introduced into the wastewater into which air pressure lower than a standard atmospheric pressure is formed; injecting heated, dry circulating air into the wastewater; A vacuum drying unit for discharging circulated air; a condensed water separating unit for separating and drying the condensed water from the circulated air discharged from the vacuum drying unit; a condenser for separating and drying the condensed water from the circulating air discharged from the vacuum drying unit, And a heating and supplying unit for heating and circulating the circulating air having a pressure lower than the atmospheric pressure by the vacuuming and re-injecting into the vacuum drying unit.

Here, the separating and separating unit generates a vortex by the circulating air discharged from the vacuum drying unit, exchanges heat between the circulating air rising at the center of the vortex and the refrigerant, drops the condensed water, Lt; / RTI >

The cyclone condenser may include a housing in which the wet circulating air discharged from the vacuum drying unit forms a vortex, a condenser located at the center of the housing and through which the circulating air rising at the center of the vortex passes, And an opening / closing valve mounted up and down on a discharge portion communicated with the discharge port.

Wherein the condenser includes at least one air hole formed to pass through the upper and the lower air holes, a case defining an inner space through which the refrigerant flows, a plurality of spaced apart upper and lower spaces dividing the inner space of the case, And a discharge pipe having one end communicated with a partitioned internal space at the lower portion of the case and the other end projecting to the outside of the case, wherein the refrigerant flows from the partition plate And flows out from the upper part to the lower part of the inner space partitioned by the circulating air, and is discharged to the outside through a discharge pipe, and the circulating air is cooled while rising from the lower part of the air hole to operate to generate condensed water.

Further, a radiating fin may be coupled to the inner circumferential surface of the air hole so as to promote the generation of condensed water.

In addition, the condensed water separator may further include an additional heat exchanger for exchanging heat between the refrigerant discharged from the cyclone condenser and the circulated air from which the condensed water is separated, thereby increasing the temperature of the circulated air.

Meanwhile, the heating and supplying unit may include a blower for injecting the circulating air discharged from the condensed water separating unit into the vacuum drying unit, and a heating pipe for heating the circulating air discharged from the blower.

The vacuum unit may include a vacuum pump connected in parallel to the connection line between the condensed water separating unit and the blower.

The vacuum drying unit may include a tank having a discharge port for discharging waste, a stirrer installed inside the tank, a driving unit for rotating the stirrer, and a heating unit for heating the inside of the tank, . In particular, the heating unit includes a jacket that surrounds the tank, a jacket through which a heating medium flows, and a heating medium supplying unit that supplies the heating medium. The jacket includes a heating pipe for heating circulating air injected into the vacuum drying unit, .

In the detailed construction, the stirrer includes a stirring shaft rotatably disposed in the tank, and a plurality of stirring wings having one end coupled to the stirring shaft, wherein the stirring wing includes a frame coupled to the stirring shaft, And may include first wings and second wings that are alternately joined to each other in an opposite direction at one side of the frame and whose area decreases as the distance from the stirring axis increases.

According to the embodiment of the present invention, it is possible to quickly dry a waste containing a large amount of water even when using less energy than the conventional technique. Therefore, it will improve the energy efficiency and improve the productivity.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the construction of a waste drying apparatus according to an embodiment of the present invention; Fig.
Fig. 2 shows a detailed configuration of the embodiment according to Fig. 1; Fig.
3 is an enlarged view of the vacuum drying section employed in the embodiment of FIG. 2;
Fig. 4 shows a vacuum drying unit and a heating pipe employed in the embodiment of Fig. 2; Fig.
Figure 5 is a plan view of the stirrer employed in the embodiment of Figure 2;
Fig. 6 is a front view of a stirring wing employed in the stirrer shown in Fig. 5; Fig.
7 is a side view of the stirrer shown in Fig.
Figure 8 is a schematic plan view of a cyclone condenser employed in the embodiment of Figure 2;
Fig. 9 is a perspective view schematically showing the condenser shown in Fig. 8; Fig.
10 is a cross-sectional view showing the inside of the condensing portion of FIG. 9;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure, function and operation of a waste vacuum drying apparatus according to the present invention will be described with reference to the accompanying drawings. However, reference character C is a cooling facility for supplying refrigerant.

Figure 1 shows the main components of the invention and the main flow of circulating air.

The waste vacuum drying apparatus according to the present invention includes a vacuum drying unit 1, a condensed water separating unit 2, a vacuum chamber 3 and a heating and supplying unit 4.

The vacuum drying unit 1 induces low-pressure evaporation of the moisture contained in the waste to reduce the water content of the waste. Waste flows into and out of the vacuum drying unit intermittently. During the operation of the vacuum drying unit, circulated hot air heated at one side is injected and wet circulated air including steam vapor evaporated at the other side is discharged from the other side.

The waste in the vacuum drying unit is stirred by an agitator for the purpose of preventing moisture from being easily evaporated in the vacuum drying unit and preventing accumulation of waste during the drying process. The waste is not agglomerated by such an agitator, and the moisture is easily evaporated by the air dried at high temperature inside the vacuum drying unit.

The vacuum drying unit may further include a heating unit for heating the waste in order to rapidly promote drying in the vacuum drying unit. The temperature of the waste can be further increased by adding the amount of heat transferred from the heated circulation gas injected into the vacuum drying unit and the amount of heat transferred from the heating unit.

When the waste is organic, it is possible to induce carbonization of the dried organic matter by drying the waste while maintaining the internal temperature of the vacuum drying unit at 250 ° C or more. In the case of passing from a vacuum drying unit to carbonization, there is no need of equipment for carbonizing the dried waste separately, and the volume of the carbonized waste finally discharged from the vacuum drying unit is greatly reduced, thereby facilitating storage and transportation .

The condensed water separating section 2 generates and discharges condensed water from the circulating air containing moisture discharged from the vacuum drying section. The condensed water separator includes a condenser for lowering the temperature of the circulating air to generate moisture in the circulated air supplied thereto. The heat exchanger exchanges the refrigerant supplied from the outside with the circulating air to lower the temperature of the circulating air, thereby generating condensed water in the steam. The condensed water is collected by the self weight into the lower part of the condensed water separating part, and is finally discharged to the outside. The discharged condensed water is recycled as other industrial water through post treatment such as odor removal, sterilization, etc., or discharged after purification treatment.

The heating supply unit 4 includes a blower (see 41 in FIG. 2) for pumping circulated air. The blower injects the circulated air that has been dried as the condensed water is separated into the vacuum drying unit again. The transfer of the circulating air by the blower constitutes a circulating cycle of the circulating air which is sequentially passed through the vacuum drying unit and the condensed water separating unit.

In addition, the heat supply unit heats the circulated air that has been cooled during the process of discharging the condensed water from the circulated air. In the embodiment, a part of the pipes through which the circulating air moves is constituted by a heating pipe.

The vacuum chamber 3 is connected to a line of circulating air provided between the condensed water separating portion and the heating supply portion. The vacuum part adjusts the pressure of the circulating air raised by the outside air introduced during the process of charging or discharging the waste into the vacuum drying part or the steam generated in the vacuum drying part to a low pressure according to the design value. The vacuum part can use a vacuum pump according to a known configuration.

The circulating air in the line between the condensate separating section and the heating supply section is a section in which the humidity and the temperature are low in the entire circulation cycle. Since the vacuum pump provided in the vacuum chamber has a good operating efficiency at a low temperature, it is possible to minimize the energy required for vacuuming in order to maintain the vibration level of the circulating air at a certain level.

The waste vacuum drying apparatus according to the present invention supplies circulating air, which is dried at a high temperature and a pressure lower than a standard atmospheric pressure, to waste containing moisture, and it is possible to dry the waste quickly while reducing the amount of energy to be supplied for stirring.

FIG. 2 shows a schematic structure of a waste vacuum drying apparatus according to an embodiment of the present invention.

2 to 4, the vacuum drying unit 1 includes a tank 11 in which waste is contained, a stirrer 12 installed inside the tank and capable of stirring the waste, And a driving unit 13. In addition, it includes a heating unit 115 that heats the inside of the tank 11 only if not necessarily required.

The tank 11 is a pressure-resistant container having a substantially cylindrical shape. The tank is provided with a charging port (111) for charging the waste into the tank and a discharge port for discharging the dried waste.

At this time, the inlet and the outlet may be installed in opposite directions. The tank forms an internal space of a long cylindrical shape in accordance with the processing capacity, and the charging port is installed on one side of the tank and the discharging port is provided on the other side of the tank. As the internal stirrer 12 is operated, the waste gradually moves in one direction within the tank, and can be collected around the discharge port at the completion of drying. Even when the tank is formed long, the discharge port can be opened to easily discharge the dried waste.

The tank 11 is connected to an injection line 113 through which a circulating gas supplied from a heating and supplying unit is injected and a discharge line 114 through which the circulating gas is discharged. The injection line 113 and the discharge line 114 are connected to both longitudinal ends of the tank 11 so that the circulating air introduced into the injection line 113 passes through the longitudinal direction of the tank 11 and evaporates And may exit the discharge line 114 with moisture.

On the other hand, although not shown, each of the injection line and the discharge line may further include an on-off valve. Each of the opening / closing valves prevents the outside air from being injected into the discharge line or the injection line when the inlet or outlet of the tank is opened and the outside air is introduced into the inside of the tank, It is possible to prevent a large change in the pressure of the fluid. Accordingly, it is possible to reduce the operation of the expansion and contraction for lowering the pressure inside the lines through which the condensed water separator and the circulating air pass.

The stirrer 12 is provided inside the tank to stir the waste. In the embodiment according to FIG. 5, the stirrer shaft 121 is rotatably disposed inside the tank 11, And a plurality of stirring wing portions 122 which are coupled to each other. As the agitating shaft 121 rotates, the agitating vane 122 acts to raise the waste in the tank, thereby increasing the contact area of the waste with the circulating air passing through the tank. The detailed configuration of such an agitator will be described in detail later.

The driving unit 13 is a mechanical structure for rotating the stirring shaft. The driving unit 13 transmits a rotational force to a stirring shaft extending so as to protrude from one end of the tank. Such a drive unit is composed of a motor, a gear box, or the like. The driving portion may be replaced with various known structures for rotating the stirring shaft.

The heating unit 115 can heat the inside of the tank. In the embodiment shown in FIGS. 2 to 4, the heating unit 115 includes a jacket 116 that surrounds the tank 11, a boiler that supplies a heating medium to the jacket (Not shown). The interior of the jacket 116 is formed with a space 117 through which a heating medium such as high-temperature steam flows. The outer circumferential surface of the tank 11 is heated by the jacket 116 so that the temperature of the waste in the tank 11 can be greatly increased. When the temperature of the waste is heated to 250 ° C or more and dried with recirculated air, the organic wastes that have escaped moisture below a certain level can be carbonized.

Although not shown, the heating unit can be variously changed in addition to the jacket in which the heating medium flows. For example, a heat ray generated by electrical resistance can be configured to surround the outer circumferential surface of the tank. In another example, the ultrasonic vibrator may be attached to the tank to induce heating of the waste by ultrasonic waves.

FIG. 4 shows an embodiment in which a heating pipe 42 is installed inside the heating unit 115. Here, the heating pipe 42 is for heating the circulating air, and is composed of a metal tube having a hot wire wound around the outer circumference thereof, or a double tube having a heat wire or the like inside thereof. In this case, since the amount of heat of the heating pipe 42 is transmitted to the heating medium or the tank 11, it is possible to reduce the loss of energy of the energy required to operate the heating pipe, thereby increasing energy efficiency.

On the other hand, when the drying apparatus is operated under the condition that the temperature of the heating medium supplied to the jacket is higher than the temperature of the heating pipe, the heating pipe may be replaced with a general metal pipe and the heating medium may heat the metal pipe and the circulating air passing therethrough have. In this case, since there is no need for extra energy for heating the heating pipe, there is an advantage that the corresponding energy can be saved.

Hereinafter, the stirrer according to the present invention will be described in detail with reference to FIGS. 5 to 7. FIG.

The stirrer 12 includes a stirring shaft 121 and a plurality of stirring wings 122 coupled to the stirring shaft. The stirring shaft 121 is rotatably coupled to both ends of the tank. Particularly, the one end of the stirring shaft 121 receives rotational force through a driving unit provided outside the tank.

A spatula portion 123 is mounted on each of opposite ends of the stirring shaft 121 across the inside of the tank. The spatula part 123 collects at the longitudinal end of the tank and disperses the solidified waste and pushes it toward the center of the tank. The spatula portion has a curved shape along the dome shape at both ends of the tank.

A plurality of stirring wing portions 122 are radially coupled to the stirring shaft 121. The length of the stirring wing portion 122 is formed to be equal to or smaller than the inner diameter of the inner space of the tank. In FIG. 7, the stirring vane 122 is mounted perpendicularly to the four directions at the stirring shaft 121, but may be mounted so as to form one direction, three directions, or the like.

The stirring wing portion 122 includes a frame 124 coupled to the stirring shaft 121, first wings 125 and second wings 126 coupled to the frame.

In the drawing, the frame 124 is a plate erected in a direction parallel to the rotating direction of the stirring shaft 121. The first wings 125 and the second wings 126 are slopedly connected to the frame 124 at one side in the direction in which the frame 124 advances. At this time, the direction in which the first wings 125 protrude and the direction in which the second wings 126 protrude are opposite to each other. In FIG. 6, the frame 124, the first wings 125, and the second wings 126 form a substantially letter "Y" shape.

A section 127 for reinforcing the structural strength of the first and second blades is connected to a portion where the first wings 125 and the second wings 126 meet. The first wings and the second wings may be fixed by welding. Or not shown, but section steel may be coupled between the first wings and the frame, or may be coupled between the second wings and the frame. In addition, the section steel can be omitted.

The stirring wing portion 122 can be made of one steel plate. That is, the first wings 125 and the second wings 126 can be formed by forming a plurality of incisions in the steel sheet and bending the steel sheet according to the incision. The stirring wing portion 122 can be easily mass-produced by a press apparatus.

The first wings 125 and the second wings 126 of the stirring wing 122 are alternately connected in the longitudinal direction of the frame 124. The area of each of the first blades 125 and each of the second blades 126 becomes gradually smaller as the distance from the stirring shaft 121 increases.

The direction of rotation of the agitating shaft 121 is the direction in which the first wings 125 and the second wings 126 are advanced to sweep the waste contained in the tank. At this time, the first wings and the second wings, which are inclined in both directions, can be easily pumped up as the wastes are stacked.

The first wings 125 and the second wings 126 alternately protruding from the frame 124 have the effect of stirring the waste when the stirring wing 122 passes through the waste. That is, due to the inclination of the first wing 125, a portion of the waste is moved toward one end of the tank, and by the inclination of the second wings 126 adjacent to the first wing, As shown in FIG. As the first wings and the second wings are alternately provided, the waste can be agitated without being largely removed to one side.

In addition, the volume of waste stored in the tank gradually decreases as the drying progresses, which means that the height of the waste accumulated from the bottom of the tank is lowered. As the height of the waste decreases, the surface layer portion of the wastes stacked by the first wings or the second wings at a position gradually away from the agitating axis is more finely agitated.

Further, only the second vanes 126 are coupled to the ends of all the stirring vanes 122. After the waste has been sufficiently dried, it is collected at a low height at the bottom of the tank. At this time, the wastes dried by the second wings formed at the end portions of the stirring wing portions are worn out. Since all the stirring wing portions are moved by the second wings having the same inclination direction, the one direction of the tank The direction in which the slopes of the wings are viewed). In particular, when the discharge port is formed in one direction of the tank, the dried waste can be quickly and easily discharged from the tank.

The condensed water separating unit separates the soot and foreign substances contained in the circulating air by generating a vortex with the circulated humid air discharged from the vacuum drying unit and generates and drops condensed water in an ascending flow of the circulating air generated at the center of the vortex And a cyclone condenser for discharging the refrigerant to the outside.

Further, the condensed-water separating section is not necessarily required, but may further include an additional heat exchanging section for partially warming the circulating air passing through the cyclone condensing section.

8 to 10 are views related to the configuration of the cyclone condenser.

The cyclone condensing part 2A includes a housing 21 for forming a vortex with the circulated humid air discharged from the vacuum drying part 1 and a condensing part 22 for lowering the moisture content in the ascending flow. In addition, the cyclone condenser 2A includes open / close valves 23 for discharging the condensed water generated in the condenser to the outside.

The humidified circulating air is injected into the housing 21 along the direction in contact with the outer circumferential surface thereof to form a vortex in the inner circular space. The vortex is strengthened at the lower end of the housing 21 where the sectional area becomes smaller, and foreign substances such as dust contained in the circulating air are pushed to the inner wall surface of the housing and then fall.

A condensing portion 22 is provided at the center of the housing 21. The supplied cold refrigerant circulates inside the condenser 22, and the humid circulating air rising from the lower portion of the vortex is heat-exchanged with the refrigerant, and the temperature is rapidly lowered to generate condensed water. Here, the refrigerant is provided by a cooling means of known construction, for example, the refrigerant is cooling water.

The condensing portion 22 is formed by a cylindrical case 211 having an internal space through which the refrigerant flows. At least one air hole 211a is formed in the case 211 so as to penetrate in the vertical direction. In Fig. 9, a plurality of air holes 211a are formed to increase the contact area with the refrigerant. A plurality of radiating fins 214 are formed on the inner circumferential surface of the air hole for increasing the contact area between the circulating air passing through the air holes 211a and the air holes kept cool by the refrigerant.

If a single air hole is formed in the casing, the radiating fin can be formed in a lattice shape opening up and down. However, since it is important to secure a large flow rate of the refrigerant in order to keep the temperature of the condenser sufficiently low, it is advantageous that a plurality of air holes 211a are formed as shown in Fig.

A plurality of partition plates 212 are provided in the case 211 so as to be spaced apart in the vertical direction. The partition plate 212 divides the space inside the condenser in the vertical direction. Each partition plate 212 is formed with a hole 212a passing through the upper and lower portions and through which the refrigerant can pass. At this time, the hole 212a of one of the partition plates 212 is formed at a position shifted from the hole of the other partition plates adjacent to the upper and lower sides, so that the refrigerant flows into the partitioned internal space after passing through the partitioned internal space . The holes of the partition plate may be formed in opposite directions to the holes of the adjacent partition plates.

The inner space formed at the lowermost one of the partitioned inner spaces of the condenser 22 communicates with the discharge pipe 213. The discharge pipe 213 allows the refrigerant in the lowermost internal space to be discharged to the outside of the case. That is, one end of the discharge pipe 213 communicates with the partitioned inner space of the lower part of the case 211, and the other end protrudes outside the case 211.

The cold refrigerant sequentially flows through the divided inner spaces of the case 211 from the upper layer to the lower layer and is discharged to the outside through the discharge pipe 213. In the cross section of the condenser 22 shown in Fig. 10, the refrigerant flows in a staggered manner from the inner space of the upper layer to the inner space of the lower layer.

On the other hand, the circulating air rises upward from the lower portion of the air hole 211a. In this case, when the temperature distribution of the condenser is examined, the upper end of the case 211 into which the cool refrigerant is immediately injected is the coldest, and the colder the coolant becomes the colder the lower the case 211. The circulating air also starts to cool at the lower portion of the air hole 211a and becomes lower as the temperature rises along the air hole 211a. Therefore, as the circulating air is cooled as it is cooled, the temperature of the upper portion of the case can be cooled to a lower temperature, so that the effect of generating condensed water over the entire air hole can be obtained.

The inner wall surface of the air hole 211a and the condensed water droplets generated in the radiating fins 214 grow as the new wet circulating air flows and eventually fall down to the bottom of the housing due to its own weight.

Some of the droplets of condensate that fall to the bottom of the case bounce off the inner wall surface of the housing due to upward flow or vortex, and flow down on the inner surface again. The condensed water flowing on the inner wall surface of the housing absorbs the foreign substances pushed out from the vortex and collects on the bottom of the housing together with the foreign matter.

The condensed water collected at the bottom of the housing 21 is discharged to the outside of the cyclone condenser 2A through the open / close valves 23 mounted vertically on the discharge portion communicating with the lower portion of the housing 21. Here, the pressure loss of the cyclone condenser can be reduced by sequentially opening the upper and lower pair of on-off valves.

An additional heat exchange section 2B is shown in Fig. The additional heat exchanging part 2B exchanges heat between the refrigerant discharged from the cyclone condensing part and the circulating air from which the condensed water is separated. The structure of the additional heat exchanger is the same as that of the known heat exchanger, and a detailed description thereof will be omitted.

The additional heat exchanging part 2B further increases the temperature of the circulating air whose temperature is lowered while generating condensed water. Accordingly, energy required for heating the circulating air in the heating and supplying unit 4 can be reduced.

The vacuum chamber 3 includes a vacuum pump 31 connected in parallel to a connection line between the condensate water separator and the blower. At this time, the vacuum pump 31 is the same as a well-known vacuum pump widely used for forming atmospheric pressure lower than the atmospheric pressure, and a repeated explanation will be omitted. It is possible to maintain atmospheric pressure lower than the standard atmospheric pressure by the other vacuum pumps even in a situation where one of the breakdown and repair is required. Thereby improving the reliability of maintaining the low pressure state. In addition, it is possible to rapidly lower the pressure to the low pressure required at the initial operation, thereby improving the productivity.

1: Vacuum dryer
11: tank 111: inlet 113: injection line
114: exhaust line 115: heating section 116: jacket 117:
12: stirrer 121: stirrer shaft 122: stirrer blade 123:
124: frame 125: first wing 126: second wing 127: section steel
2: Condensate separation unit
2A: Cyclone condenser 2B: Additional heat exchanger 21: Housing
22: condenser part 211: case 211a: air hole 212: partition plate
212a: hole 213: discharge pipe 214:
3: Vacuum pump 31: Vacuum pump
4: heating supply part 41: blower 42: heating pipe
C: Cooling facility

Claims (14)

A vacuum drying unit for agitating the wastes which are introduced into the inside which forms a pressure lower than the standard atmospheric pressure and for discharging wet circulating air containing moisture that has been heated from dry circulation air at one side and evaporated at the other side from the waste;
A condensed water separating unit for separating and drying the condensed water from the circulating air discharged from the vacuum drying unit; And
A heating and supplying unit for heating the circulating air having a pressure lower than the atmospheric pressure by the vacuuming and re-injecting the circulating air into the vacuum drying unit, so that the circulating air discharged from the condensed water separating unit forms a pressure state lower than the atmospheric pressure; Lt; / RTI >
The condensed-
And a cyclone condenser for generating a vortex from the circulated humid air discharged from the vacuum drying unit and dropping the condensed water by exchanging heat between the circulating air rising at the center of the vortex and the refrigerant,
Waste vacuum drying equipment. delete The method of claim 1,
The cyclone condenser
A humidified circulating air discharged from the vacuum drying unit forms a vortex,
A condenser positioned at the center of the housing and through which the circulating air ascending at the center of the vortex flows;
And an opening / closing valve mounted vertically on an outlet communicating with a lower portion of the housing. 4. The method of claim 3,
The condenser
At least one air hole is formed through the upper and lower portions to form an inner space through which the refrigerant flows,
A partition plate having a plurality of spaces spaced upwardly and downwardly from an inner space of the case and having a refrigerant hole through which the refrigerant flows,
And one end communicated with the partitioned internal space at the lower portion of the case and the other end projecting to the outside of the case. 5. The method of claim 4,
The refrigerant flows sequentially from the upper layer to the lower layer of the inner space partitioned by the partition plate and is discharged to the outside through the discharge pipe,
Wherein the circulating air is cooled while rising at a lower portion of the air hole to generate condensed water. 5. The method of claim 4,
And a radiating fin is coupled to an inner circumferential surface of the air hole. The method of claim 1,
The condensed-
And an additional heat exchanger for exchanging heat between the refrigerant discharged from the cyclone condenser and the circulating air from which the condensed water has been separated, thereby raising the temperature of the circulating air. The method of claim 1,
The heating supply unit
A blower for injecting the circulating air discharged from the condensed water separator into the vacuum drying unit,
And a heating pipe for heating the circulating air discharged from the blower. 9. The method of claim 8,
The vacuum section
And a plurality of vacuum pumps connected in parallel to the connection line between the condensed water separator and the blower. The method of claim 1,
The vacuum drying unit
A tank having a discharge port through which the waste is discharged,
An agitator provided inside the tank,
A driving unit for rotating the stirrer,
And a heating unit for heating the inside of the tank. 11. The method of claim 10,
Wherein the heating section includes a jacket surrounding the periphery of the tank and through which a heating medium flows and a heating medium supplying section for supplying the heating medium,
Wherein the jacket is provided with a heating pipe for heating the circulating air injected into the vacuum drying unit. 11. The method of claim 10,
The stirrer
A stirring shaft rotatably disposed in the tank; and a plurality of stirring wings having one end coupled to the stirring shaft,
The stirring wing
A frame coupled to the stirring shaft,
The first wings and the second wings being alternately slanted in opposite directions at one side of the frame and having an area smaller as the distance from the stirring axis increases. The method of claim 12,
Wherein only the second vanes are coupled to the end portions of all the stirring vanes. The method of claim 1,
Wherein the internal temperature of the vacuum drying unit is maintained at 250 DEG C or higher to carbonize the organic waste.

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