KR101471373B1 - Vehicle for washing garbage container - Google Patents

Abstract

The present invention relates to a food garbage container washing vehicle. According to the present invention, washing water that is contaminated by washing a food garbage container is filtered for re-use and hot water and steam are used at the same time in washing the food garbage container. The present invention includes a vehicle that is provided with a washing chamber for food garbage container washing; multiple nozzles that inject water into the food garbage container put into the washing chamber; a water tank that stores the water to be supplied to the nozzles; a first pump that pushes the water stored in the water tank out for supply to the nozzles; a burner that heats the water pushed out by the first pump; a valve that controls the water pushed out by the first pump; a primary filter unit that receives and stores the washing water discharged from the washing chamber and includes at least one filter; a second pump that transports the washing water stored in the primary filter unit to the water tank; a secondary filter unit that removes foreign matters in the washing water which is transported by the second pump; a screen that is disposed in a lower end portion of the washing chamber; at least one air blow pipe that blows air at a high pressure toward the screen so as to separate food residue remaining in the screen from the screen; and air supply means for supplying high-pressure air to the air blow pipe.

Description

Vehicle for washing garbage container}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a garbage container washing machine for washing food garbage containers used for temporarily storing food garbage, and more particularly to a food garbage container washing machine for washing food garbage containers, And a method of cleaning a food garbage container using hot water and steam by heating water supplied from a pump to a nozzle with a burner.

To prevent environmental pollution caused by food waste generated in homes and restaurants, it collects food waste generated in homes and restaurants, recycles the collected food waste through appropriate processes for composting, fertilizing, feeding, and fueling. A method of re-producing it as a resource is being used.

In order to recycle the food waste, the food waste is collected separately from other general waste. For this purpose, a food waste container is provided for each specific area so that nearby residents can throw the food waste into the food waste container , The collector collects the food waste collected in the food garbage container collectively and transfers it to the treatment plant.

On the other hand, in the case of the food garbage container provided in each area, continuous management is required as it is easily contaminated by exposure to moisture and odor contained in the food garbage.

Therefore, in an organization that manages food waste containers provided in each district, the food waste containers are periodically cleaned using a food waste container washing machine for washing food garbage containers.

An example of the above-mentioned garbage container cleaning car is disclosed in Japanese Patent Application Laid-Open No. 10-2001-0082423.

The food garbage container cleaning car disclosed in the above-mentioned invention comprises a water tank, a pump, a cleaning device composed of a nozzle and a brush, and a lift for transferring the food garbage container to the inside of the loading box in a loading box provided behind the driver's seat of the vehicle .

The conventional garbage container washing machine constructed as described above injects water at high pressure into a food garbage container carried to the inside of the loading box by a lift and cleans the food garbage container by using a brush.

On the other hand, it is used to clean food garbage containers, and the polluted water is stored in a separate sewage storage tank and then discharged.

As a result, the conventional garbage container washing machine having the above-described structure has a disadvantage in that the working time is determined according to the amount of water stored in the water tank, resulting in poor working efficiency.

In other words, since the use of water is essential for washing food garbage containers, if the water in the water tank is exhausted, the washing operation can be stopped, and the water garbage container washing operation can be resumed Likewise, even if the sewage storage tank is full of sewage, the washing operation can be resumed only after discharging the sewage to a specific place.

In order to replenish the water in the water tank or to discharge the wastewater stored in the waste water storage tank to a specific place, movement of the garbage container washing car is required, resulting in a problem of waste of vehicle fuel and time.

Open Patent Publication No. 10-2001-0082423 (published on August 30, 2001)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for cleaning food waste containers so that contaminated washing water can be filtered and used again, The present invention provides a food garbage container washing car which is used together.

It is another object of the present invention to provide a food waste container washing car which is capable of preventing circulation of washing water by preventing clogging of a flow path due to food waste.

According to an aspect of the present invention, there is provided a vehicle including a washing chamber for washing a food garbage container; A plurality of nozzles installed in the washing chamber to spray water into the food garbage container charged in the washing chamber; A water tank installed in the vehicle for storing water to be supplied to the nozzle; A first pump for pressurizing and discharging water stored in the water tank and supplying the water to the nozzle; A burner for heating the water pressurized and discharged by the first pump; A valve for distributing and controlling the water discharged from the first pump to a plurality of nozzles; A primary filter unit including at least one filtering filter for receiving and storing washing water discharged from the washing chamber, and removing foreign matter from the washing water; A second pump for transferring the wash water stored in the first filter unit to the water tank; A secondary filter unit for removing foreign substances in the washing water conveyed by the second pump; A screen installed at a lower end of the washing chamber to filter food waste falling together with the washing water in the washing process of the food garbage container; At least one air injection pipe installed at a lower portion of the screen and spraying air at a high pressure toward the screen to separate food waste remaining on the screen from the screen; And air supply means for supplying high-pressure air to the air injection pipe.

In the food waste container washing car, a flow switch installed in a flow path connecting the first pump and the burner to form a contact for operation of the burner when water flows through the flow path; And a temperature switch installed in a flow path connecting the burner and the valve to shut off the contact so that the operation of the burner is stopped when the temperature of the water rises above a predetermined temperature.

In the food waste container washing machine, the primary filter unit may include a waste water storage tank for receiving and storing washing water discharged from the washing chamber; A plurality of filtration filters provided in the sewage storage tank so as to have a structure spaced apart from each other by a predetermined distance so as to remove foreign substances in the waste water and sequentially filter foreign particles having a large particle size from the inflow side of the wash water; And a first level sensor for generating a signal for driving the second pump when the level of the wash water flowing into the wastewater storage tank reaches a predetermined level.

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Meanwhile, in the food waste container washing machine, the screens may be configured to have a plurality of bars arranged in parallel with each other with a predetermined interval, and each of the bars may have an inverted triangular cross-sectional structure .

When the water level of the washing water reaches a predetermined level due to an increase in the level of the washing chamber due to the clogging of the screen, the water garbage container washing car, which is installed on the pipe connecting the air supplying means and the air injection pipe, And a second level sensor installed in the washing chamber to generate a signal to open the washing chamber.

In the meantime, in the food waste container washing machine, the air injection pipe is installed in the cleaning chamber so as to have a rotatable structure, and a plurality of nozzle holes formed in the air injection pipe so as to be parallel to the second line not passing through the center of the air injection pipe. And a plurality of protrusions protruding from the outer surface of the air injection tube to flow the washing water against the washing water during rotation of the air injection tube.

Meanwhile, in the garbage can cleaner, the secondary filter unit may include a plurality of water filters.

According to the present invention having the above-described features, it is possible to prevent the washing operation from being stopped due to the water exhaustion of the water tank, since the contaminated washing water is used for filtering the food waste container, It is possible to increase the working efficiency of the cleaning work of the food garbage container and to prevent waste of fuel and time since movement for supplementing water is not required in the process of washing the food garbage container.

In addition, by using hot water and steam for cleaning the food garbage container, it is possible to more effectively remove odors and bacteria from the food garbage container.

In addition, when the screen or the discharge port is clogged by the food wastage, it is sensed using the second level sensor, and the second level sensor The air blast pipe injects high-pressure air to the screen and the discharge port based on the signal to automatically block the screen and the discharge port. Accordingly, it is possible to prevent the cleaning operation from being delayed There is an effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural view of a food garbage container washing car according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing only a substantial part of a garbage container cleaning car according to the present invention,
3 is a detailed view of the primary filter unit according to the present invention,
4 is a cross-sectional view of a washing chamber showing a structure in which a screen is installed in a washing chamber,
FIG. 5 is a perspective view showing the installation structure of the screen and the air injection pipe according to the present invention,
6 is a cross-sectional view illustrating a state in which a screen and an air injection tube according to the present invention are installed,
FIG. 7 is a sectional view showing another installation structure of the air injection tube according to the present invention,
8 is a cross-sectional view of the air injection tube shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a structural view of a garbage container washing car according to a preferred embodiment of the present invention, and FIG. 2 is a schematic view showing only a main part of a garbage container washing car according to the present invention.

The garbage container washing machine according to the present invention can be used again for washing the food garbage container by filtering the water used for washing the garbage container, and can also use hot water and steam for washing the garbage container The first pump 130, the burner 140, the valve 150, the first filter unit 160, the second pump (not shown) 170), and a secondary filter unit (180).

The vehicle 100 includes a plurality of wheels, an engine for generating power for rotating the wheels, a power transmission device for transmitting the power generated by the engine to the wheels, A known truck having a space capable of mounting a food washing equipment at the rear of the driver's seat can be used. Such a truck is already widely used, and a detailed structure of the vehicle 100 Will not be described in detail.

The vehicle 100 according to the present invention further includes a washing chamber 101 for washing the food waste container 10 and the washing chamber 101 is provided with a food garbage container , And a food garbage container to be transported by a lift (not shown) may be input. Preferably, the food garbage container is transferred to the inside of the cleaning chamber 101 by a lift, and the food garbage container is fixed by a lift So that a cleaning operation is performed.

Meanwhile, since the lift is a well-known technique that has already been applied to the conventional garbage container cleaning car as well as the garbage collection container, the illustration and explanation of the lift will be omitted.

The nozzle 110 injects water into the food waste container 10 introduced into the cleaning chamber 101 to perform the cleaning operation of the food waste container 101. The nozzle 110 can spray water evenly inside and outside the food waste container 101 And a plurality of nozzles 110 are installed in the cleaning chamber 101 in a distributed manner.

The water tank 120 is a tank for storing water required for cleaning the food garbage container, and is installed in a structure fixed to the vehicle 100.

The first pump 130 pressurizes the water stored in the water tank 120 and supplies the water to the nozzle 110. The first pump 130 may be configured to operate by receiving power generated from a vehicle engine from a known power take-off (PTO), or may be configured to operate by receiving power generated by a separate engine or motor Lt; / RTI >

The burner 140 heats the water discharged from the first pump 130 and supplied to the nozzle 110. The burner 140 is provided with a pipe through which water discharged from the first pump 130 flows and which is heated by the heat generated when the oil or gas is burned, It can be constructed as a boiler.

Meanwhile, the burner 140 is pressurized by the first pump 130 to heat the relatively high-pressure water. As is well known, the boiling point of the water is increased in proportion to the pressure. As a result, even if water is heated to a temperature of 100 ° C by using the burner 140, water is not boiled and no steam is generated.

However, since the water heated by the burner 140 is sprayed through the nozzle 110, the pressure of the water is lowered, and a part of the water is converted into steam. As a result, the burner 140 is used to move the nozzle 110 By heating the supplied water, the food garbage container can be cleaned using hot water and steam.

Such a burner 140 is preferably configured to operate only when water flows by the operation of the first pump 130 and only when the temperature of the water is lower than a predetermined temperature.

A flow rate switch 141 is formed in the flow path connecting the first pump 130 and the burner 140 to form a contact for operating the burner 140 when water flows through the flow path, And a temperature switch 142 for shutting off the contact of the burner 140 to stop the operation of the burner 140 when the temperature of the water rises above a predetermined temperature.

As a result, the burner 140 operates when water flows through a flow path connecting the first pump 130 and the burner 140, and the temperature of the water is lower than a predetermined temperature.

The valve 150 distributes and controls the water discharged from the first pump 130 to the plurality of nozzles 110 and distributes the water discharged from the first pump 130 to all the nozzles 110, Or some of the nozzles 110, and such valve 150 may be configured with a known solenoidal directional valve.

The primary filter unit 160 receives the washing water discharged from the washing chamber 101 and filters the washing water to temporarily hold the washing water discharged from the washing chamber 101 to induce precipitation of food wastes contained in the washing water .

Fig. 3 shows a detailed view of the primary filter unit according to the present invention.

The primary filter unit 160 includes a waste water storage tank 161, a filtration filter 162, and a first water level sensor 163.

The wastewater storage tank 161 is installed in a structure fixed to the vehicle 100 and is connected to the washing chamber 101 through a pipe to receive and discharge the washing water discharged from the washing chamber 101.

The filtration filter 162 is configured to filter food waste contained in the washing water flowing into the wastewater storage tank 161. The plurality of filtration filters 162 are disposed inside the wastewater storage tank 161, And has a structure spaced apart by a predetermined distance.

The plurality of filtration filters 162 are configured to have pores having different sizes so as to sequentially filter foreign particles having a large particle size from the inflow side of the wash water. For example, the filtration filters 162 may be disposed at a position closest to the wash water flowing into the wastewater storage tank 161 And a filter having a smaller air gap as the distance from the inflow side of the washing water is larger.

The filtering filter 162 may be a mesh type filter formed by twisting fine lines in a net shape or a filter using a filter net such as a nonwoven fabric.

The first level sensor 163 senses the level of the wash water flowing into the wastewater storage tank 161 and generates a signal for discharging the wash water when the level of the wash water reaches a preset level.

The first level sensor 163 may include a first level sensor 1631 and a second level sensor 1632. The first level sensor 1631 is installed at the upper end of the inner side of the waste water storage tank 161 to generate a signal for operation of the second pump 170 when the wash water reaches a preset upper limit level, The water level sensor 1632 is installed at an inner lower end of the waste water storage tank 161 to generate a signal for stopping the second pump 170 when the wash water reaches a predetermined lower water level.

The second pump 170 transfers the wash water stored in the first filter unit 160 to the water tank 120.

The second pump 170 may be configured to operate by receiving power generated from the vehicle engine from a known power take-off (PTO) as in the case of the first pump 130, And can be configured to operate by receiving the generated power.

The secondary filter unit 180 further removes foreign substances in the washing water transferred to the water tank 120 by the operation of the second pump 170 so that a plurality of water filters can be connected in series As shown in FIG.

Meanwhile, as is well known, the water filter has a structure in which a filter member is installed in a filter housing having an inlet and an outlet, so that water flowing into the filter housing is filtered during the passage through the filter member, As the filter member, a precipitation filter, a carbon filter, and a membrane filter are mainly used.

The secondary filter unit 180 configured as described above is provided with cleaning water filtered by the primary filter unit 160 to remove fine foreign substances and bacteria contained in the cleaning water.

The screen 190 for filtering the garbage of relatively large size falling from the garbage container during the washing of the garbage container 10 from the inside of the washing room 101, Is further installed in the cleaning chamber 101.

Fig. 4 is a sectional view of a washing chamber showing a structure in which a screen is installed in a washing chamber, Fig. 5 is a perspective view showing the installation structure of a screen and an air injection tube according to the present invention, And shows a cross-sectional view showing a state where the jetting tube is installed.

The screen 190 is installed at a lower portion of the washing chamber 101 so as to block the food wastes falling from the food waste container from flowing into the discharge port 101a formed at the lower end of the washing chamber 101, ) Are arranged so as to have a parallel structure spaced apart from each other by a predetermined distance.

According to this screen 190, food waste having a relatively large particle size among the food waste falling from the food waste container can not pass between the bar 191 constituting the screen 190 and the bar 191, It is possible to prevent the large food waste from flowing into the discharge port 101a to close the flow path or prevent the performance of the primary filter unit 160 from flowing into the primary filter unit 160 and deteriorating the performance of the primary filter unit 160 .

On the other hand, as the cleaning operation of the food garbage container is progressed, the amount of the food garbage on the screen 190 increases, and eventually the space (bar space) of the screen 190 is blocked by food waste, And in this case, the cleaning operation is temporarily stopped, and the operator is required to remove the food waste accumulated on the screen 190, which makes the operation possible.

The screen 190 is installed at the lower end of the washing chamber 101 and the air spraying tube 200 for spraying the air to the screen 190 is additionally provided to easily remove the screen 190 when the screen 190 is clogged .

More specifically, the air injection tube 200 is installed inside the washing chamber 101 so as to be positioned below the screen 190, and preferably has a structure perpendicular to the bar 191 constituting the screen 190 In the lower part of the screen 190.

The air injection pipe 200 includes at least one nozzle hole 201 for injecting air.

The nozzle hole 201 includes a plurality of first nozzle holes 201a formed at the upper end of the air injection tube 200 to inject air toward the screen 190 and a plurality of second nozzle holes 201b And a plurality of second nozzle holes 201b formed at the lower end of the air injection tube 200.

The high-pressure air injected from the air injection pipe 200 is supplied to the cleaning chamber 101 through the air supply pipe 202, And the air bubbles formed by the air injected from the air injection tube 200 float between the bar 191 and the bar 191 so that the bar 191 and the bar 191 are moved upward, Thereby separating the food waste from the screen 190.

The air supply means 202 may be an air tank in which air is compressed and stored at a predetermined pressure. The air supply means 202 constituted by the air tank may be a compressor (not shown) provided in the vehicle 100, To maintain the predetermined pressure.

A solenoid valve 203 is provided in the pipe connecting the air injection pipe 200 and the air supply means 202 to supply air to the air injection pipe 200 only when necessary.

In order to solve the clogging of the screen 190 by injecting high-pressure air into the screen 190 using the air injection tube 200, clogging of the screen 190 is automatically detected, So that air can be injected into the air.

To this end, the washing chamber 101 is further provided with a second level sensor 204.

When the level of the washing water in the washing chamber 101 rises due to clogging of the screen 190 or the discharge port 101a and reaches the position where the second water level sensor 204 is installed, The second level sensor 204 is configured to generate a signal for opening a solenoid valve 203 provided in a pipe connecting the supply means 202 and the air injection pipe 200. The second level sensor 204 may be a well- Sensor, and it is preferable to configure the second level sensor 204 with an index sensor in consideration of the fact that the inside of the cleaning chamber 101 is easily contaminated.

In order to more smoothly separate the food waste from the screen 190 by the flow of bubbles or washing water generated by the air injection pipe 200, the respective bars 191 constituting the screen 190, Is configured to have an inverted triangular cross-sectional structure of an upper light beam.

In the case of the screen 190 composed of the bar 191 having the inverted triangular cross-sectional structure, a space having a triangular cross section is formed between the bar 191 and the bar 191, When the inflow or the flow of the washing water flows, the physical force due to the bubbles and the washing water is increased, so that the food waste can be removed more smoothly.

FIG. 7 is a sectional view showing another installation structure of the air injection tube according to the present invention, and FIG. 8 is a sectional view of the air injection tube shown in FIG.

The air spray pipe 200 is configured to rotate so as to more actively induce the flow of the washing water to the washing chamber 101 so as to smoothly remove the food waste remaining on the screen 190 and the discharge port 101a .

More specifically, both ends of the air injection tube 200 are connected to the cleaning chamber 101 via a bearing B so that the air injection tube 200 can rotate .

A plurality of first nozzle holes 201a and a plurality of second nozzle holes 201b are formed at the upper and lower ends of the air injection tube 200. The first nozzle holes 201a and the second nozzle holes 201b, 201b are formed so as to be parallel to the circumferential line L not passing through the center of the air injection tube 200. The secant line L is a straight line intersecting the circle formed by the cross section of the air injection tube 200 but having two intersecting points and not passing through the center point of the circle formed by the cross section of the air injection tube 200.

According to this structure, the first nozzle hole 201a and the second nozzle hole 201b are formed so as to be inclined obliquely toward the center of the air injection tube 200, and the first nozzle hole 201a and the second nozzle hole 201b The air injection tube 200 is rotated by the repulsive force generated in the process of injecting air at a high pressure through the second nozzle hole 201b.

In order to allow the rotating air injecting tube 200 to more effectively flow the washing water, a plurality of projections (not shown) are formed on the outer surface of the air injecting tube 200, (205) is formed.

2, reference numeral 143 denotes a relief valve that allows the water discharged from the first pump 130 to maintain a predetermined pressure, 144 denotes a pressure gauge, 145 denotes an operator to arbitrarily select a food garbage container or other object It is a cleaning gun that allows cleaning work to be carried out.

The process of cleaning the food garbage container using the food garbage container cleaning car according to the present invention will be described.

The food garbage container is moved to a place where the food garbage container is provided, and the food garbage container is introduced into the inside of the washing chamber 101. As described above, when the operator inserts the food garbage container into the inside of the washing chamber 101 manually or when the vehicle 100 is provided with a lift, the food garbage container is moved to the inside of the washing chamber 101 So that it is injected into the inside.

When the introduction of the food garbage container is completed, the first pump 130 is operated to supply the water in the water tank 120 to the nozzle 110, whereby the high-pressure water is supplied to the food waste container through the nozzle 110 And the cleaning operation of the food garbage container is performed.

On the other hand, by operating the burner 140 and heating the water supplied from the first pump 130 to the nozzle 110, the cleaning operation of the food garbage container can be performed using hot water and steam.

For example, the burner 140 heats the water discharged from the first pump 130 to a temperature of 100 ° C to 110 ° C. As the pressure of the heated water is lowered through the nozzle 110, Water is injected into the garbage container with the steam converted. Accordingly, when the burner 140 is operated, hot water and steam are sprayed from the nozzle 110, and the cleaning operation of the food garbage container is performed.

In the washing process of the food garbage container as described above, the washing water and the food waste used for washing the food garbage container fall to the bottom of the washing chamber 101. At this time, the food garbage of relatively large particles can not pass through the screen 190 The remaining food waste and the washing water are introduced into the waste water storage tank 161 through the discharge port 101a formed at the lower end of the washing chamber 101. [

When the level of the washing water in the washing chamber 101 reaches the second level sensor 204 due to clogging of the screen 190 or the discharge port 101a formed at the lower end of the washing chamber 101, A signal is generated from the solenoid valve 204 and the solenoid valve 150 is opened, so that high-pressure air is injected from the air injection pipe 200.

Bubbles are generated by the air injected from the air injecting tube 200, and the air is injected from the air injecting tube 200 into the bar 191 of the screen 190 So that the food waste sandwiched between the bars 191 is separated from the screen 190. Further, each bar 191 constituting the screen 190 is constituted by an inverted triangular cross-sectional structure, which increases the physical force generated by the flow of bubbles or washing water, so that the food waste can be efficiently supplied from the screen 190 .

On the other hand, the washing water flowing into the wastewater storage tank 161 stays in the wastewater storage tank 161 until the second pump 170 is driven. At this time, the food waste contained in the washing water flows into the bottom of the wastewater storage tank 161 And is further filtered by the filtration filter 162 installed in the waste water storage tank 161.

On the other hand, as the washing operation of the food garbage container continues, the washing water level in the waste water storage tank 161 rises, and the water level of the washing water reaches the first level sensor 1631 A signal is generated in the first level sensor 1631 and the second pump 170 is driven by the signal to return the washing water in the waste water storage tank 161 to the water tank 120. [

In the process of returning the washing water to the wastewater storage tank 161 to the water tank 120, the washing water passes through the secondary filter unit 180 composed of a plurality of water filters, and the secondary filter unit 180 is included in the washing water Thereby removing foreign substances and germs from the fine particles.

As described above, the food waste container washing car according to the present invention is characterized in that the washing water used for washing the food garbage container is filtered and returned to the water tank 120, and the washing water returned to the water tank 120 is returned to the food waste container So that the efficiency of the cleaning operation of the efficiency of operation of the food waste container washing car can be improved.

In addition, since the food garbage container can be cleaned using hot water and steam, there is an advantage that the cleaning efficiency of the food garbage container can be improved.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
100: vehicle 101: washing chamber
110: nozzle 120: water tank
130: first pump 140: burner
141: Flow switch 142: Temperature switch
150: valve 160: primary filter unit
161: Wastewater storage tank 162: Filtration filter
163: first level sensor 170: second pump
180: Secondary filter unit 190: Screen
191: Bar 200: Air distributor
201: nozzle hole 202: air supply means
203: valve 204: second level sensor
205:

Claims (8)

A vehicle (100) having a washing chamber (101) in which a cleaning operation of a food garbage container is performed;
A plurality of nozzles 110 installed in the washing chamber 101 for spraying water into the food waste container introduced into the washing chamber 101;
A water tank (120) installed in the vehicle (100) and storing water to be supplied to the nozzle (110);
A first pump (130) for pressurizing and discharging the water stored in the water tank (120) and supplying the water to the nozzle (110);
A burner 140 for heating water to be pressurized and discharged by the first pump 130;
A valve 150 for distributing and controlling the water discharged from the first pump 130 to a plurality of nozzles 110;
A primary filter unit (160) including at least one filtering filter (162) for receiving and storing washing water discharged from the washing chamber (101) and removing foreign substances in the washing water;
A second pump 170 for transferring the wash water stored in the first filter unit 160 to the water tank 120;
A secondary filter unit (180) for removing foreign substances in the washing water conveyed by the second pump (170);
A screen 190 installed at a lower end of the washing chamber 101 to filter the food waste falling together with the washing water in the washing process of the food waste container;
And one or more air injection pipes 200 disposed at a lower portion of the screen 190 for separating food waste remaining on the screen 190 from the screen 190 by spraying air at a high pressure toward the screen 190 ); And
And air supply means (202) for supplying high-pressure air to the air injection pipe (200). The method according to claim 1,
A flow rate switch 141 installed in a flow path connecting the first pump 130 and the burner 140 to form a contact for operating the burner 140 when water flows through the flow path; And
And a temperature switch 142 installed in a flow path connecting the burner 140 and the valve 150 to shut off the contact so that the operation of the burner 140 is stopped when the temperature of the water rises above a predetermined temperature Wherein the food garbage container washing tea is characterized in that it is a food waste container washing tea. The filter unit according to claim 1, wherein the primary filter unit (160)
A wastewater storage tank 161 for receiving and storing washing water discharged from the washing chamber 101;
A plurality of pores having different sizes of pores are disposed in the sewage storage tank 161 so as to have a structure spaced apart from each other by a predetermined distance so as to remove contaminants in the purged water, A filtration filter 162; And
And a first level sensor 163 for generating a signal for driving the second pump 170 when the level of the wash water flowing into the wastewater storage tank 161 reaches a preset level. Food waste container washing car. delete The method according to claim 1,
The screen 190 is composed of a plurality of bars 191 arranged to have a parallel structure spaced apart from each other by a predetermined distance, and each of the bars 191 has an inverted triangular cross-sectional structure Food waste container washing car. The method according to claim 1,
When the water level of the washing water reaches a predetermined position due to an increase in the water level of the washing chamber 101 due to the clogging of the screen 190, the water level of the washing water on the pipe connecting the air supplying means 202 and the air injecting tube 200 And a second water level sensor (204) installed in the washing chamber (101) to generate a signal to open the valve (203) installed. The method according to claim 1,
The air injection tube 200 is installed in the washing chamber 101 so as to have a rotatable structure,
A plurality of nozzle holes 201 formed in the air injection tube 200 so as to be parallel to a dividing line L not passing through the center of the air injection tube 200; And
And a plurality of protrusions (205) protruding from the outer surface of the air injection tube (200) so as to flow the washing water against the washing water during rotation of the air injection tube (200) Washing car. The method according to claim 1,
Wherein the secondary filter unit (180) comprises a plurality of water filters.

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