KR101957859B1 - Drying apparatus of garbage for bad smell prevention and closed circuit type with thermal transfer oil boiler using gas - Google Patents

Abstract

The present invention relates to a closed-circuit type food waste drying apparatus for preventing bad odors using a heating medium oil boiler using gas as a heat source. More specifically, the present invention relates to a device for drying a thermal oil using a gas boiler, Filling and circulating the food waste to be dried in the drying device so that the food waste to be crushed can be dried, and the thermal oil used for drying can be recycled into the gas boiler after use and reheated to have a circulation structure supplied to the drying device At the same time, by having a closed circuit structure in which the odor and water vapor generated during drying in the drying apparatus is not discharged to the outside, but is filtered and condensed and then re-introduced into the drying apparatus, unlike the conventional drying apparatus, Odor control closure using heating oil boiler with possible gas as heat source Rohyeong relates to food waste drying apparatus.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a closed-circuit type food waste drying apparatus using a heating medium oil boiler using a gas as a heat source,

The present invention relates to a closed-circuit type food waste drying apparatus for preventing bad odors using a heating medium oil boiler using gas as a heat source. More specifically, the present invention relates to a device for drying a thermal oil using a gas boiler, Filling and circulating the food waste to be dried in the drying device so that the food waste to be crushed can be dried, and the thermal oil used for drying can be recycled into the gas boiler after use and reheated to have a circulation structure supplied to the drying device At the same time, by having a closed circuit structure in which the odor and water vapor generated during drying in the drying apparatus is not discharged to the outside, but is filtered and condensed and then re-introduced into the drying apparatus, unlike the conventional drying apparatus, Odor control closure using heating oil boiler with possible gas as heat source Rohyeong relates to food waste drying apparatus.

In general, organic pollutants such as food waste are difficult to transport and store due to high water content, and they are easily decayed and odor. When they are buried in landfill, they cause a large amount of leachate to contaminate streams and groundwater.

Therefore, it is desirable that such sludge-based pollutants are composted, fueled and feedstocked rather than buried in landfills. Accordingly, various treatment methods for composting, fueling and feed conversion have been developed. Among them, the composting method using microorganisms has been recognized as environmentally friendly and is being used most actively. However, these microbiological treatment methods are disadvantageous in that the treatment period is long and the treatment efficiency is drastically decreased depending on the climate and operating conditions and it is difficult to treat a large amount of pollutants.

On the other hand, physical treatment methods such as drying and evaporation that facilitate transportation and storage by evaporating water from contaminants, which are easy to transport and store, are simple and fast, Therefore, it has not been widely used in the meantime.

Accordingly, there is a need to develop a device capable of easily and easily physically treating contaminants such as food waste, such as food waste, in addition to a structure that can reduce the cost of fuel required for drying.

However, in the case of a conventional drying apparatus, the heating medium may be directly heated in the drying apparatus through heat source means (heater or the like) provided therein, or a separate heat source means may be used in the drying apparatus Various methods such as heating the heat medium oil by using a combination in one side have been used.

However, in the case of a heat source such as an electric heater, there is a problem that the heater may be damaged, and maintenance or maintenance is difficult, in which heat oil leakage occurs when the heater is damaged. Also, as the service life of the electric heater increases, the temperature is not uniform due to the local overheating, which causes problems such as heating cracks.

KR10-1229156 (registration number) 2013.01.28.

In the present invention, the heating medium oil is heated by using a gas boiler, and then the heating medium oil is filled and circulated in the lower part of the drying device to dry the food waste which is crushed in the drying device. After the use, it is introduced into the gas boiler again and reheated to have a circulation structure to be supplied to the drying device. At the same time, odor water generated during drying in the drying device is not discharged to the outside but is filtered and condensed, The present invention is intended to provide a closed circuit food waste drying device for preventing bad odors by using a heating medium oil boiler that uses a gas that can increase thermal efficiency and prevent bad smell as a heat source.

In the present invention, a drawer portion is formed in which a heating fluid is filled and circulated to dry food garbage at an upper side, and a drawer portion at which the heating medium oil is drawn out is formed at the other side of the chamber, A drying unit provided at a lower end of the drying unit, the drying unit having an upper end recessed downward to receive the food waste, and a crushing unit provided at an upper portion of the drying unit to crush the food waste; A condenser communicating with the inside of the chamber of the drying apparatus through a condensation line to receive the odor water vapor generated in the drying apparatus to condense moisture; A condensate tank in which condensed water generated in the condenser is stored; And a gas boiler for recovering and heating the thermal oil from the drying unit and supplying the heated thermal oil to the drying unit, wherein the condenser is a condenser for condensing moisture, As a drying heat source for drying the food waste in the upper portion of the drying unit.

The crushing unit includes a crushing motor coupled to one side of the chamber, a plate-shaped side plate spaced apart from the inside of the chamber to close both sides of the drying unit, A first crushing shaft and a second crushing shaft mutually protruding and formed in mutually different directions on the outer periphery of the main rotation shaft and a second crushing shaft and a second crushing shaft formed to cross each other, A plurality of first crushing blades formed to connect the outer circumferences of the first crushing shaft and the second crushing shaft to crush the food waste in the upper portion of the drying unit, And a second crushing shaft which is provided at one end of the crushing shaft and connected to the end of the second crushing shaft, A plurality of second crushing blades for crushing and a plurality of auxiliary crushing blades that protrude from the outer circumferences of the first crushing shafts or the second crushing shafts in the direction of the adjacent shafts located at both ends of the main rotation shafts, And a plurality of guide pieces protruding inward from the side plate so as to correspond to the empty space between the shredding blades.

The present invention relates to a dust collecting apparatus, comprising: a primary dust filter installed on a condensing line communicating with the chamber to filter foreign matter of odor water vapor generated in the drying apparatus; And a second dust filter installed between the first dust filter and the condenser of the condensing line to filter the foreign matter of the odor water vapor and to condense a part of the water of the odor water vapor, The condensed water is stored in the condensate tank.

The secondary dust filter according to the present invention is characterized in that it comprises a filter housing which is hermetically sealed so as to have a hollow interior, a filter body provided inside the hollow of the filter housing, A filter withdrawing portion provided at a lower side of a side surface of the filter housing and supplied with odor water vapor passing through the filter body to be supplied to the condenser; And a filter discharge unit through which the condensed water condensed during passage of the odor water vapor through the filter body is discharged.

The present invention is a blower comprising: a blower installed on the refeed line to transfer odorized water vapor through the condenser to the chamber; And a heat exchanger which is formed in a closed cylindrical shape and in which the exhaust gas of the gas boiler is drawn into one side and is discharged to the other side of the re-supply line, This removed odor water vapor is heated.

The condenser of the present invention comprises: a container-shaped capacitor housing sealed to have a hollow interior; a plurality of cooling plates provided in the inside of the capacitor housing; A heat pipe exposed to the outside, and a plurality of heat sinks provided outside the condenser housing to contact the heat pipe.

According to the present invention, there is provided an air conditioner comprising: a guide plate coupled to a side surface of the condenser housing to form a flow path between the condenser housing and a side surface of the condenser housing; And the re-supply line is provided in the upper part of the heat insulating member inside the uprising pipe.

The present invention includes a heat radiating fan provided below the flow path, and the heat radiating fan is driven when the outside air temperature is equal to or higher than a set temperature.

In the present invention, the heating medium oil is heated by using a gas boiler, and the heating medium oil is supplied to the drying device, and the used thermal oil is again introduced into the gas boiler to be circulated. There is an effect that uniform heat transfer of dry heat for drying can be achieved.

In addition, the present invention has a closed circuit structure in which odor water vapor generated at the time of drying food garbage is not discharged to the outside, and the odor water vapor removed from the condensed water is re-supplied into the drying apparatus again, .

Further, the present invention has an effect of improving the crushing efficiency by improving the structure of the crushing part for crushing food waste.

In addition, the present invention has an effect that the filter cap of the secondary dust filter can be easily removed, and the filter body can be easily replaced when the filter cap is removed.

In addition, since the present invention can perform the cleaning of the blower by supplying the stored condensed water, the efficiency and life of the blower can be extended.

Further, the present invention has an effect that the drying efficiency of the drying apparatus can be increased by reheating the odor water vapor condensed with moisture from the condenser and having a lowered temperature as exhaust heat of the gas boiler and re-supplying it to the drying apparatus.

According to the present invention, the heat exchanged in the cooling plate inside the condenser housing is transferred to the heat radiating plate outside the condenser housing through the heat pipe, and the temperature of the cooling plate can be lowered by radiating heat from the heat radiating plate. It is not necessary to form a flow path for heat radiation, so that the contact efficiency inside the capacitor housing can be increased.

Further, according to the present invention, a flow path is formed around a heat radiating plate outside the condenser housing, and a high-temperature re-supply line is passed over the condenser housing to induce a rising air flow around the heat radiating plate as a rising air flow generated by the heat of the re- There is an effect that heat dissipation of the heat sink can be effected by introducing outside air.

Further, according to the present invention, it is possible to selectively operate the forced ascending airflow by the induction ascending airflow or the heat dissipating fan according to the ambient temperature, so that the power consumption for driving the heat dissipating fan can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a closed-circuit type food waste drying apparatus for preventing bad odors using a heating medium oil boiler using a gas as a heat source according to an embodiment of the present invention. FIG.
2 is a perspective view of a crushing portion of a closed circuit food waste drying device for preventing odor using a heating medium oil boiler using a gas as a heat source according to an embodiment of the present invention.
3 is a cross-sectional view of a crushing motor of a closed-circuit type food waste drying device for preventing bad odors using a heating medium oil boiler using a gas as a heat source according to an embodiment of the present invention.
4 is a schematic cross-sectional view of a drying apparatus for a closed circuit food waste drying device for preventing malodors using a heating medium oil boiler using gas as a heat source according to an embodiment of the present invention.
5 is a sectional view of a two-component dust filter of a closed-circuit type food waste drying device for preventing odor using a heating medium oil boiler using a gas as a heat source according to an embodiment of the present invention.
6 is a schematic view of a closed circuit type food waste drying apparatus for preventing malodor using a heating medium oil boiler using gas as a heat source according to another embodiment of the present invention.
FIG. 7 is a first cross-sectional view of a condenser of a closed circuit food waste drying device for preventing malodors using a heating medium oil boiler using gas as a heat source according to another embodiment of the present invention. FIG.
8 is a second sectional view of a condenser of a closed circuit type food waste drying device for preventing malodor using a heating medium oil boiler using a gas as a heat source according to another embodiment of the present invention.

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

The present invention relates to a drying apparatus (100) comprising a crushing unit (150) configured to be able to dry food waste at an upper portion of a lower portion where food waste is filled and circulate to heat the food waste, A condenser 300 for condensing water by supplying odorous water vapor generated from the drying apparatus 100 and a condenser 300 for condensing moisture from the condenser 300. The condenser 300 recovers the heat medium oil from the drying apparatus 100 and supplies the heated heat medium oil to the drying apparatus 100 And a boiler (400).

The drying apparatus 100 has a function of receiving food waste, crushing it, and drying the food waste. To this end, the drying apparatus 100 includes a chamber 110, and a heating medium oil, which is filled with the heated heat medium oil, A drying unit 120 formed at the lower end of the chamber 110 and having an upper end recessed downward to accommodate food waste at an upper portion thereof, And a crushing unit 150 provided at an upper portion of the drying unit 120 for crushing food waste.

The chamber 110 is formed in a box shape having a hollow portion therein and is configured to be hermetically sealed when the food waste inlet 101 and the food waste outlet 102 are closed. The chamber 110 includes a condensing line 10 for supplying the odor water vapor generated during the drying process of the food waste to the condenser 300 and a condenser for condensing moisture from the condenser 300, And the supply lines 70 communicate with each other. The re-supply line 70 and the condensation line 10 are connected to each other in the chamber 110 so that the odor water vapor recovered from the re-supply line 70 is utilized for warming the upper portion of the food waste in the chamber 110. [ It is desirable to be mutually spaced apart on the other side.

The drying unit 120 is configured to receive the food waste and heat the food waste. The drying unit 120 is formed to have a hollow interior. The inlet unit is formed at one side to communicate with the hollow interior, A draw-out portion to draw out the heat medium oil is formed. The upper part of the drying part 120 is recessed downward so that the food waste is guided and crushed when the crushing part 150 is rotated.

The drying unit 120 is configured such that both sides of the drying unit 120 are sealed by the side plate 159 of the crushing unit 150 so that the food waste therein is not lost in the lateral direction. That is, the drying unit 120 is formed in a U-shaped semi-cylindrical shape, and both side surfaces thereof are closed by the side plate 159 to have a container shape.

The food waste contained in the drying unit 120 is heated by the heat medium oil flowing through the hollow portion inside the drying unit 120 and is dried simultaneously with the crushing. To this end, the heat medium oil heated by the gas boiler 400 is drawn in through the inlet unit And the heat medium oil drawn out to the draw-out portion is recovered to the gas boiler 400 and reheated and supplied.

The crushing unit 150 serves to crush the food waste contained in the drying unit 120 and is provided in the upper part of the drying unit 120 in the chamber 110 for this purpose.

The shredding unit 150 rotates a plurality of shredding blades to break the food waste. The shredding motor 150 is connected to one side of the chamber 110, Shaped side plate 159 that is installed to be rotatable and hermetically seals both sides of the drying unit 120 and a pair of side plates 159 which are coupled to the rotation axis of the crushing motor 151 and penetrate the two side plates 159 so as to cross the inside of the chamber 110 A first crushing shaft 153 and a second crushing shaft 154 which are alternately protruded and formed in mutually different directions on the outer periphery of the main rotation shaft 152 and a curved blade shape A plurality of first crushing blades 155 installed to connect the outer circumferences of the first crushing shaft 153 and the second crushing shaft 154 to crush food garbage on the upper portion of the drying unit 120, And is formed in the form of a blade so as to connect ends of the first shredding shaft 153 and the second shredding shaft 154 A plurality of second crushing blades 156 for crushing food waste outside the path of the first crushing blade 155 on the upper part of the drying unit 120 and a second crushing blade 156 for crushing food waste outside the path of the first crushing blade 155 153 or a plurality of auxiliary shredding blades 157 protruding from the outer peripheral edge of the second shredding shaft 154 in the direction of the adjacent side plate 159 and a side plate 159 And a plurality of guide pieces 158 protruding inward from the guide pieces 158.

The first crushing shaft 153 or the second crushing shaft 154 does not mean that one axis is protruded from the main rotating shaft 152 but the protruding direction with respect to the crushing shaft protruding in one direction is It is preferable to be interpreted as being displayed. Namely, the shredding shafts protruding in the 12 o'clock direction in a state where the main shaking shaft 152 is stopped are collectively named as the first shredding shafts 153, and the shredding shafts protruding in the 3 o'clock direction are named as the second shredding shafts 154 It is a batch naming. The first shredding shaft 153 and the second shredding shaft 154 do not mean that one shaft protrudes from the main rotation shaft 152. For example, when the main rotation shaft 152 is stopped The pair of crushing shafts protruding in the direction of 12 o'clock and 6 o'clock in the state of 3 o'clock and 6 o'clock are all referred to as a first crushing shaft 153, . At this time, it is preferable that the protruding direction of each of the first crushing shafts 153 and the protruding direction of each of the second crushing shafts 154 make an angle of 90 degrees with each other, but it is not limited thereto.

Further, when the first shredding blade 155 and the second shredding blade 156 are coupled between the first shredding shaft 153 and the second shredding shaft 154, this coupling does not necessarily have to be continuous. For example, when the first shredding blade 155 is coupled to the first shredding shaft 153 at 12 o'clock direction and to the second shredding shaft 154 at 3 o'clock, The first shredding blade 155 may be coupled to the second shredding shaft 153 at the 9 o'clock position or may be coupled to the second shredding shaft 154 at the 9 o'clock position, The primary coupling is completed by being coupled to the shaft 153 and coupled to the second crushing shaft 154 at the 3 o'clock direction and another first crushing blade 155 is attached to the second crushing shaft 154 at 9 o'clock And then coupled to the first shredding shaft 153 at the 6 o'clock direction. The first shredding shaft 153 and the second shredding shaft 154 may be combined with the first shredding blade 155 and the second shredding blade 156 Of course, can be any type.

The auxiliary shredding blade 157 serves to shred food waste located on both end sides of the main rotation shaft 152 that is not broken by the first shredding blade 155 and the second shredding blade 156. The first shredding blade 155 and the second shredding blade 156 are coupled to the first shredding shaft 153 or the second shredding shaft 154 located at both ends of the main rotating shaft 152, There is a possibility that the fracture effect in both end directions of the main rotation shaft 152 is comparatively low due to the nature of the main rotation shaft 152. Therefore, as a means for guiding or directly crushing the food waste in the both end directions of the main rotation shaft 152, A blade 157 is provided. At this time, a plurality of guide pieces 158 corresponding to the empty space between the auxiliary shredding blades 157 so as to guide the auxiliary shredding blades 157 and to crush the food waste together with the auxiliary shredding blades 157, As shown in Fig.

On the other hand, food garbage is usually fibrous and contains a large amount of moisture and has a high viscosity. Therefore, when the shredding motor 151 rotates the main rotating shaft 152, a considerable load is applied to the shredding motor 151. When the shredding motor 151 is driven under such a load condition, a considerable load is generated in the bearing supporting the rotation shaft of the shredding motor 151, and the shredding motor 151 is always driven The bearing is deteriorated. In order to prevent the deterioration of the bearing, lubricant is filled between the bearing and the guide, but such lubricant is also searched or evaporated due to heat and rotation.

Accordingly, in the present invention, the lubricating oil injection port 160 is provided outside the crushing motor 151 and the lubricating oil injector 161 is removable from the lubricating oil injection port 160. The lubricating oil injection port 160 is exposed to the outside of the crushing motor 151 and is installed so that its end is close to the bearing and the bearing guide. The lubricating oil injector 161 is attached to the exposed portion of the lubricating oil injection port 160, The operating life of the shredding motor 151 can be extended.

The shredding motor 151 may further include an encoder 162 for measuring the rotation amount of the rotation shaft of the shredding motor 151. The rotation amount of the shredding motor 151 may be measured by the encoder 162, Can be used as the data to determine the maintenance period of time. Further, the amount of rotation at this time can be measured in more detail than the rotation speed and the rotation time at the rotation speed. Therefore, when the rotation amount in the rough state is large, the maintenance or replacement timing of the shredding motor 151 is advanced , The crushing motor 151, the rotating shaft of the motor, and the damage of the chain.

The primary dust filter 130 is connected to one side of the side plate 159 or the chamber 110 to primarily filter various foreign substances and dust contained in the odor water vapor generated in the drying unit 120 . The primary dust filter 130 is installed on the condensing line 10 connecting the drying unit 120 and the condenser 300 and is preferably installed on the surface of the chamber 110 or the side plate 159 And are arranged so as to be in line with each other.

The secondary dust filter 200 is installed on the condensation line 10 and functions to filter the foreign matter remaining in the offensive odor water vapor that is not filtered by the primary dust filter 130 in the second order. For this purpose, the secondary dust filter 200 includes a filter housing 210, a filter body 220 disposed inside the hollow of the filter housing 210, The filter housing 210 includes a filter inlet 211 provided at the top or side upper end of the filter housing 210 to supply odor water vapor from the chamber 110, And a filter discharge unit 213 provided below the filter discharge unit 212 and through which the condensed water is condensed while passing through the filter body 220. The filter discharge unit 213 is connected to the filter discharge unit 212, .

Since the secondary dust filter 200 is a first configuration in which the hot and humid odor water vapor substantially remains on the condensation line 10 for a relatively long period of time, the temperature of the odor water vapor passing through the filter body 220 falls and some condensed water is generated . The condensed water is transferred to and stored in the condensate tank 600, and may be further provided with a separate valve for opening and closing the movement of the condensed water.

The secondary dust filter 200 is configured such that the upper filter cap 230 is easily detachable from the filter housing 210 so that the inner filter body 220 is disposed above the filter housing 210 Or to insert the new filter body 220 from above the filter housing 210. [

The condenser 300 communicates with the inside of the chamber 110 of the drying apparatus 100 through the condensation line 10 to receive the odor water vapor generated in the drying apparatus 100 and to condense moisture in the odor water vapor . At this time, preferably, odor water vapor passing through the primary dust filter 130 and the secondary dust filter 200 is supplied to the condenser 300, and the odor water vapor generated in the drying apparatus 100 is supplied to the condenser 300 Needless to say, the meaning of the phrase "supplied" does not necessarily mean a direct connection without going through another constitution.

The condenser 300 is configured to allow the outside air to pass outside the flow tube through which the steam flows, such as a normal air-cooling condenser, so as to remove moisture contained in the steam by air-cooling the air flowing inside the flow tube .

The odor water vapor that has passed through the condenser 300 and condensed by moisture is re-supplied into the chamber 110 of the drying apparatus 100 through the re-supply line 70. At this time, A blower 710 is provided on line 70. The odor water vapor blown by the blower 710 is transferred into the chamber 110 of the drying apparatus 100 through the re-supply line 70. The odor water vapor thus re- Is used as an auxiliary heat source for drying.

On the other hand, when the malodorous water vapor to be re-supplied is used as an auxiliary heat source, the malodorous water vapor can be heated and supplied to improve the utilization efficiency. A heat exchanger 700 is provided on the re-supply line 70 between the blower 710 and the drying apparatus 100.

The heat exchanger 700 serves to heat the odor water vapor using the exhaust heat of the gas boiler 400. The heat exchanger 700 is formed in a closed cylindrical shape to exhaust the exhaust gas of the gas boiler 400 to one side, The drawn-in exhaust gas is discharged, and the re-supply line 70 is passed through the hollow interior. At this time, the re-supply line 70 passing through the inside of the heat exchanger 700 is preferably bent a plurality of times inside the heat exchanger 700 to improve the heat exchange efficiency.

The odor water vapor in the re-supply line 70 that has passed through the heat exchanger 700 is heated by the heat exchanger 700 to increase its internal volume. At this time, a buffer device 500 is further provided on the re-supply line 70 between the heat exchanger 700 and the drying apparatus 100 to prevent the channel from being broken when the pressure inside the pipe rises above the set value do.

The buffer device 500 is a place where the stinking water vapor whose temperature has been raised through the heat exchanger 700 is fed to the drying device 100 before it is supplied again to increase the volume of water vapor discharged through the heat exchanger, And discharges the generated condensed water to the condensate tank 600 when the condensed water is generated in the passageway while passing the odor water vapor.

This buffering is such that when condensed water is supplied from the condensate tank 600 back to the blower 710 for internal cleaning of the blower 710, In order to prevent the foreign matter from being introduced into the apparatus.

The condensed water tank 600 serves to store the condensed water generated in the secondary dust filter 200, the condenser 300 and the buffer unit 500. The stored condensed water is discharged to the outside, To the condenser line 10 between the secondary dust filter 200 and the condenser 300 and to the blower 710 on the re-supply line 70. [ The condensate supplied to the blower 710 is utilized to clean the blower 710 and reaches the buffer device 500 along the re-supply line 70 and is recovered from the buffer device 500.

The gas boiler 400 heats the thermal oil using the gaseous fuel and supplies the heated thermal oil to the drying unit 120 of the drying apparatus 100 and is used to dry the food waste from the drying unit 120, And reheats the supplied heat medium oil to the drying unit 120 again. At this time, the heating temperature of the heat medium oil is preferably 150 ° C to 200 ° C, but is not limited thereto.

A gas burner 410 is provided at the upper end of the gas boiler 400 to generate a flame toward the lower end of the gas boiler 400. In the gas boiler 400, And a heat medium pipe (40) through which the heat medium oil flows. A circulation pump 420 is installed inside or outside the gas boiler 400 to supply the heated heat medium oil to the drying unit 120 or to recover the heat medium oil from the drying unit 120 To the inside of the gas boiler (400). The heat source of the gas boiler 400 may be various known gas boiler 400 fuel technologies such as natural gas, LNG, and biogas. The combustion of the gas boiler 400 and the arrangement of the heat medium pipe 40 are also described in the present invention It is needless to say that the known boiler technology can be applied.

On the other hand, it is preferable that the expansion tank 430 is provided on the pipe of the heat medium pipe 40 through which the heat medium oil is circulated, in parallel with the channel of the heat medium pipe 40, in consideration of the expansion of the pressure in the pipe by heating the heat medium oil. In the expansion tank 430, the water level is raised during heating and the water level is lowered during heating, so that the lowest level of the descending water is drawn out of the expansion tank 430 Is preferably higher than the channel height.

The gas boiler 400 also has two control methods, such as allowing the temperature of the heat medium oil to always maintain a predetermined temperature range, for example, 165 to 185 degrees Celsius (or 150 to 200 degrees Celsius) Can be selectively utilized.

First, by controlling the ON and OFF drive of the gas boiler 400, the gas boiler 400, the gas burner 410 and the circulation pump 420 are operated to heat the temperature of the heat medium oil to a predetermined temperature range, The gas burner 410 is turned off when the oil temperature is higher than the preset temperature range and then the control is repeated to turn the bath burner 410 on again when the heat medium oil is lower than the preset temperature range.

At this time, the circulation pump 420 is preferably always driven, and a plurality of temperature sensors are mounted at a plurality of positions of the heating medium pipe 40 to measure the temperature of the heating medium oil.

Secondly, in a proportional control for controlling the amount of gas supplied to the gas burner 410 while the gas burner 410 is always driven, the gas burner 410 is first driven to heat the heat medium oil, The gas burner 410 is not turned off unlike the first embodiment and is adjusted to a gas amount suitable for the present temperature before reaching the vicinity of the highest temperature value, So that the temperature of the heat medium oil can be kept constant in accordance with the predetermined temperature range. This second control method has the effect of increasing the efficiency and reducing the gas amount since the temperature deviation can be maintained at a constant value dskg without changing greatly.

Among these two control methods, ON / OFF drive control is suitable for a small and medium machine, and proportional control is suitable for a large machine, but it can be configured to be selectable according to the user.

Hereinafter, another embodiment of the present invention will be described. In the other embodiment of the present invention, the same configuration as that of the basic embodiment of the present invention is used, and only the configuration of the capacitor 300 and the re-supply line 70 is changed.

The condenser 300 utilizes a structure in which steam is condensed in the inside of the pipe by supplying outside air using a fan to the outside of the pipe through which the odor water vapor passes to cool the hot and humid odor water inside the condenser. However, since the structure of the condenser 300 requires the fan to be always driven, power consumption for driving the fan has been a problem.

Accordingly, in the present invention, a configuration in which a natural convection current is generated to cool the inside of the condenser 300 when the outside air temperature is equal to or lower than the set temperature is provided.

According to the present invention, the condenser 300 does not generate airflow from the side surface or the rear surface of the condenser 300, and conveys the heat absorbed in the condenser 300 to the outside of the condenser 300, do.

To this end, the condenser 300 includes a container or a square box-shaped condenser housing 310 sealed to have a hollow interior, a plurality of cooling plates 320 provided inside the condenser housing 310, And a plurality of heat sinks 340 provided on the outside of the condenser housing 310 so as to be in contact with the heat pipes 330. The condenser housing 310 includes a heat pipe 330, And a guide plate 360 coupled to a side surface of the condenser housing 310 so as to form a flow path between the condenser housing 310 and a side surface of the condenser housing 310 on which the heat pipe 330 is exposed, An uprising pipe 370 provided above the plate 360 so as to communicate with the flow passage and a heat insulating member 380 provided inside the uprising pipe 370. At this time, a re-supply line 70 is connected to the upper part of the heat insulating member 380 inside the uprising pipe 370. A heat dissipating fan 350 is provided under the flow path.

The operation of the condenser 300 will be described in detail. The high-temperature and high-humidity odor water vapor introduced into one side of the condenser housing 310 passes through the inside of the condenser housing 310 and comes into contact with the cooling plate 320. At this time, it is preferable that the cooling plate 320 is provided so as to be parallel to the moving direction of the odor water vapor so that the odor water vapor can be guided and moved. The bad odor water vapor that comes into contact with the cooling plate 320 and low in temperature condenses on the cooling plate 320 and generates condensed water. In this case, the temperature of the cooling plate 320 is raised by heat exchange with the odor water vapor, and the raised temperature is conducted along the heat pipe 330 and supplied to the heat dissipation plate 340 outside the condenser housing 310. The temperature of the cooling plate 320 inside the condenser housing 310 can be lowered by radiating the heat radiating plate 340 outside the condenser housing 310. Therefore, Therefore, it is possible to increase the water condensing efficiency by installing more cooling plate 320 for condensing water vapor inside the condenser housing 310.

The heat radiating plate 340 may radiate heat transmitted by contact with the outside air. At this time, a heat radiating fan 350 may be provided at the lower portion to increase heat radiating efficiency. However, in the present invention, in order to minimize the driving of the heat radiating fan 350 And a guide plate 360 surrounding the side surface of the condenser 300 on which the heat sink 340 is formed.

The guide plate 360 is formed on both sides of the side surface of the capacitor housing 310 so as to form a 'C' shape in a plan view so as to surround the heat dissipating plate 340 from the side of the capacitor housing 310 where the heat pipe 330 is exposed. Direction, and guides the outside air introduced from the lower portion to move upward. The riser pipe 370 is connected to the flow channel formed by the guide plate 360 at an upper end of the guide plate 360. The riser pipe 370 is not limited to a pipe, And the condenser housing 310 so that they can be discharged to the upper portion.

In the direction of the outlet of the uprising pipe 370, the hot water vapor heated by the heat exchanger 700 is passed through the ash supply line 70 through which the odor water vapor is delivered. In the re-supply line 70, since the odor water vapor heated by the heat exchanger 700 flows, it radiates high-temperature heat to the outside. At this time, the heat of the high temperature generates the upward flow, and the upward flow formed in the upward flow pipe 370 induces the upward flow in the flow path inside the guide plate 360. At this time, it is preferable that a heat insulating member 380 is provided under the re-supply line 70 so that the radiant heat emitted from the re-supply line 70 can not reach the capacitor housing 310.

The ascending air current is generated as the heat of the re-supply line 70 and the ascending air current is induced in the flow path formed by the condenser housing 310 and the guide plate 360, The outside air can be introduced into the heat sink 340 and the heat sink 340 can be cooled.

However, when the outside air temperature is high, the cooling air can not be sufficiently cooled only by the upward flow generated by the re-supply line 70. At this time, the heat radiating fan 350 under the guide plate 360 is driven to forcibly supply the outside air to the heat radiating plate 340. The driving time of the heat radiating fan 350 is controlled by the temperature sensor It is possible to reduce electric power required for driving the heat radiating fan 350 for cooling the condenser 300. [

A partition wall 390 is provided under the cooling plate 320 of the condenser housing 310 so that the condensed condensed water from the cooling plate 320 flows in one direction and the condensed water flows into the odor steam inlet portion 311 It is preferable that the introduced odor water vapor is reversed in the direction of the flow path at the end of the partition wall 390 so as to flow to the lower part of the partition wall 390 and be discharged to the odor water vapor withdrawing part 312. This is to prevent the deterioration of the condensing efficiency because the stinking water vapor enters the condenser housing 310 when the odor water vapor inlet portion 311 and the odor water vapor outlet portion 312 are opposite to each other, The contact time between the cooling plate 320 and the malodorous water vapor can be further extended by using the resistance force generated when the direction of the flow path is changed at the end of the partition wall 390.

In the present invention constructed as described above, the heating medium oil is heated using the gas boiler 400 and supplied to the drying apparatus 100. The used heating medium oil flows into the gas boiler 400 again, The uniform heat transfer of the drying heat for drying can be effected over the entire space of the drying unit 120 inside the drying apparatus 100.

In addition, the present invention has a closed circuit structure in which odor water vapor generated at the time of drying food waste is not discharged to the outside, and the odor water vapor removed from the condensed water is re-supplied back into the drying apparatus 100, There is no effect.

Further, the present invention has an effect of improving the crushing efficiency by improving the structure of the crushing part 150 for crushing food waste.

In addition, the filter cap 230 of the secondary dust filter 200 can be easily removed, and the filter body 220 can be easily replaced when the filter cap 230 is removed.

In addition, since the present invention can perform the cleaning of the blower 710 by supplying the stored condensed water, the efficiency and life of the blower 710 can be extended.

In the present invention, the drying efficiency of the drying apparatus 100 is improved by reheating the odor water vapor condensed in water from the condenser 300 and having a lowered temperature as exhaust heat of the gas boiler 400, There is an effect that can be raised.

The present invention is also applicable to a case where the heat exchanged in the cooling plate 320 inside the condenser housing 310 is transferred to the heat radiating plate 340 outside the condenser housing 310 through the heat pipe 330, Since the temperature of the cooling plate 320 can be lowered by radiating heat, it is not necessary to form a flow path for heat radiation inside the condenser housing 310, so that the effect of increasing the contact efficiency inside the condenser housing 310 have.

In the present invention, a flow path is formed around the heat sink 340 outside the capacitor housing 310, and the high-temperature re-supply line 70 is passed over the capacitor housing 310, There is an effect that heat can be radiated from the heat radiating plate 340 by introducing a rising air current around the heat radiating plate 340 as a rising air flow generated by the heat,

Also, according to the present invention, it is possible to selectively operate the induction ascending airflow or the forced ascending airflow by the heat dissipation fan 350 according to the ambient temperature, so that power consumption for driving the heat dissipation fan 350 can be reduced.

100: drying apparatus 110: chamber
120: drying section 150: crushing section
200: Secondary dust filter 300: Capacitor
400: Gas boiler 500: Buffer unit
600: condensate tank 700: heat exchanger
710: Blower

Claims (8)

And a drawer portion in which the heating medium oil is filled and circulated so that the food garbage can be dried at one side and the heating medium oil is drawn out at the other side is formed at the lower end of the chamber A drying unit having an upper end recessed downward to receive the food waste at an upper portion thereof and a crushing unit provided at an upper portion of the drying unit to crush the food waste;
A condenser communicating with the inside of the chamber of the drying apparatus through a condensation line to receive the odor water vapor generated in the drying apparatus to condense moisture;
A condensate tank in which condensed water generated in the condenser is stored;
A gas boiler for recovering and heating the thermal oil from the drying unit and supplying the heated thermal oil to the drying unit;
, ≪ / RTI &
The condenser re-supplies the odor water vapor condensed with moisture to the chamber through a re-supply line to dry the food garbage in the upper portion of the drying unit,
A blower installed on the re-supply line for transferring the odor water vapor passing through the condenser to the chamber;
And a heat exchanger formed in a closed tube shape to exhaust the exhaust gas of the gas boiler to one side and discharge the other side,
The re-supply line is heated by the inside of the re-supply line through the inside of the heat exchanger to remove the moisture,
The capacitor includes:
A plurality of cooling plates provided in the inside of the condenser housing; a heat pipe disposed in contact with the cooling plate and having one side exposed to the outside of the condenser housing; And a plurality of heat sinks provided outside the condenser housing to contact the heat pipe,
A guide plate coupled to a side surface of the condenser housing to form a flow path between the condenser housing and a side surface of the condenser housing, a riser pipe communicating with the flow path at an upper portion of the guide plate, Wherein the re-supply line comprises a heat-generating member and a gas provided at an upper portion of the heat-insulating member inside the riser pipe as a heat source.
The method according to claim 1,
The crusher
A crushing motor coupled to one side of the chamber, a plate-shaped side plate spaced apart from the inside of the chamber to close both sides of the drying unit, A first crushing shaft and a second crushing shaft mutually protruding and formed in mutually different directions on the outer circumference of the main rotation shaft and a second crushing shaft formed in a curved blade shape, A plurality of first crushing blades for connecting the shafts and the outer circumferences of the second crushing shafts to crush the food waste in the upper portion of the drying unit; And a plurality of second waves that are provided in such a manner as to connect the ends of the shredding shafts to break the food waste outside the path of the first shattering blade on the upper portion of the drying unit, A plurality of auxiliary crushing blades that protrude from the outer circumferences of the first crushing shaft or the second crushing shaft and are adjacent to the side plates positioned at both ends of the main rotation shaft; And a gas containing a plurality of guide pieces protruding inward from the side plate so as to correspond to the heat source.
The method according to claim 1,
A primary dust filter installed on the condensing line to communicate with the chamber and filtering foreign matter of odor water vapor generated in the drying apparatus;
A second dust filter installed between the primary dust filter and the condenser of the condensing line to filter residual foreign matter of the odor water vapor, wherein a part of the moisture of the odor water vapor condenses;
/ RTI >
Wherein the condensed water condensed in the second dust filter is a heat medium oil that uses gas stored in the condensate tank as a heat source.
The method of claim 3,
Wherein the secondary dust filter comprises:
A filter housing provided in a hollow interior of the filter housing, and a filter inlet provided on an upper surface or a side upper surface of the filter housing to supply odor water vapor from the chamber, A filter outlet portion provided at a lower side of the filter housing and extending out of the filter body so as to be supplied to the condenser, and a filter outlet portion provided below the filter outlet portion, A closed-circuit type food waste drying device for preventing bad odors by using a heating medium oil boiler using a gas including a filter discharge portion through which condensed water condensed during passage is discharged as a heat source.
delete delete delete The method according to claim 1,
And a heat radiating fan provided at a lower portion of the flow path, wherein the heat radiating fan uses a gas, which is driven when a temperature of the outside air is higher than a predetermined temperature, as a heat source.

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