KR100980297B1 - Food waste treatment system and treatment method - Google Patents

Abstract

The present invention relates to a food waste treatment system and a treatment method of a natural vacuum discharge method, comprising a drying chamber having an agitator installed therein, a heater for heating the drying chamber, and steam generated from the food waste heated in the drying chamber. A cooling chamber for cooling, a condensate piping chamber through which condensed water cooled and condensed in the cooling chamber passes, and one end thereof is connected to an upper side of the drying chamber, and is disposed to pass through the cooling chamber and the condensate piping chamber; A first valve installed near a pipe pipe through which steam and air in the drying chamber pass, and a pipe pipe connected to an upper side in the drying chamber from outside the cooling chamber to control inflow of steam and air into the cooling chamber. And condensed water installed in a pipe pipe passing through the cooling chamber from the outside of the cooling chamber. A second valve for controlling the inflow of condensate into the tube chamber, a third valve installed in the condensate piping chamber for controlling the discharge of condensate, and installed at one side of the cooling chamber, from the coolant storage tank to the cooling chamber. And a fourth valve for controlling the inflow of cooling water, a bypass piping pipe provided between the first valve and the second valve, and a fifth valve provided in the bypass piping pipe to heat food waste. By pushing the air in the chamber by the vapor generated by evaporating the water contained in the food waste, the chamber can be made close to the vacuum pressure without the vacuum pump, thereby reducing the energy required to heat and dry the food waste. Of the cooling water and cooling temperature required for the condensation of water vapor from food waste using multiple valves. The energy required for regulation can be saved.

Description

Food Waste Disposal System and Treatment Method {SYSTEM AND METHOD FOR FOOD GARBAGE DISPOSAL}

The present invention relates to a food waste treatment system and a treatment method, and more particularly, to a food waste treatment system and treatment method of a natural vacuum discharge method that can reduce the energy required to heat and dry food waste. .

In recent years, the disposal of food waste generated at home or restaurants, etc., has increased as the standard of living improves the amount of food waste generated, and thus the environmental pollution is intensifying.

As a result, food waste has been reprocessed and considerable efforts and research have been conducted in recycling projects such as animal feed and fertilization.As a result of such research, a device for fermenting the collected food waste and the collected food waste Various reprocessing apparatuses, such as a drying and incineration apparatus, are devised.

In general, when the collected food waste is input, the food waste processing device pulverizes the food waste by an agitator installed in the drying chamber, and agitates the food waste that is crushed by the agitator while heating and drying to lower the moisture content and then fermentation. After-treatment process to feed or fertilize.

However, such a conventional food waste disposal apparatus has a vacuum pump for maintaining the inside of the heating chamber in a vacuum state as shown in FIG. 6, and since the water generated from the food waste is generated by heating, In order to continuously maintain a vacuum state, a large amount of energy must be driven while driving a vacuum pump, and due to the installation of a vacuum pump, there is a problem in that a large cost is required for manufacturing and installation.

The present invention is to solve the above-described problems of the prior art, by heating the food waste to push the air in the chamber by the steam generated by evaporating the moisture contained in the food waste in the chamber close to the vacuum pressure without a vacuum pump The purpose of the present invention is to provide a food waste treatment system and treatment method of a natural vacuum discharge method that can reduce the energy required to heat and dry food waste by forming a.

In addition, the present invention, by using a plurality of valves to provide a food waste treatment system and processing method that can reduce the energy required for the control of the cooling water and cooling temperature required for the condensation of water vapor generated from food waste for another object. do.

Further, another object of the present invention is to provide a pipe of a size that can be applied to a large amount of food waste treatment system while providing a pipe of a size suitable for a natural vacuum discharge method.

In order to achieve the above object, the food waste processing system according to the present invention includes a drying chamber having a stirrer for crushing while stirring the food waste, a heater installed under the drying chamber and heating the drying chamber; A cooling chamber for cooling steam generated from the food waste heated in the drying chamber, a condensate piping chamber through which condensed water cooled and condensed in the cooling chamber passes, and one end is connected to an upper side of the drying chamber; And a piping pipe disposed to pass through the cooling chamber and the condensate piping chamber, the piping pipe through which steam and air in the drying chamber pass, and a pipe pipe connected to an upper side of the drying chamber at an outer side of the cooling chamber. A first valve for controlling the inflow of steam and air into the cooling chamber and an outer side of the cooling chamber. A second valve installed in the pipe pipe passing through the cooling chamber to control the inflow of condensate into the condensate pipe chamber, a third valve installed in the condensate pipe chamber to control the discharge of the condensate, and the cooling chamber of the cooling chamber. It is installed on one side, characterized in that it comprises a fourth valve for controlling the inflow of cooling water from the cooling water storage tank to the cooling chamber.

The apparatus may further include a bypass pipe pipe provided between the first valve and the second valve, and a fifth valve installed in the bypass pipe pipe.

In addition, a condensate level sensor is installed on the downstream side of the second valve for detecting the flow rate of the condensed water condensed in the cooling chamber, and disposed upstream of the third valve to provide the pipe pipe and the bypass pipe pipe. It is characterized in that it further comprises a flow meter for detecting the flow rate of the steam passed.

The inner diameter of the pipe pipe and the bypass pipe pipe is characterized in that the range of 0.5cm to 3cm.

Part of the pipe pipe is characterized in that the inlet side and the outlet side is formed inclined and the central portion is a large capacity pipe pipe formed in a cylindrical shape.

In addition, the food waste treatment method according to the present invention, a drying chamber provided with a stirrer, a heater for heating the drying chamber, a cooling chamber for cooling the steam generated from the food waste heated in the drying chamber, A condensate piping chamber through which condensed water cooled and condensed in the cooling chamber passes, one end of which is connected to an upper side of the drying chamber, and a pipe pipe disposed to pass through the cooling chamber and the condensed water piping chamber, and the cooling chamber of the cooling chamber. A first valve provided in the vicinity of a pipe pipe connected to an upper side in the drying chamber from the outside, a second valve provided in the pipe pipe passing through the cooling chamber from the outside of the cooling chamber, and a third valve provided in the condensate pipe. And a fourth valve disposed at one side of the cooling chamber, and a bar disposed between the first valve and the second valve. And a fifth valve installed on the bypass pipe pipe, condensate level sensor installed downstream of the second valve, and having a flow meter arranged upstream of the third valve,

A first step of opening the first valve, the second valve, and the third valve, and setting the fourth valve and the fifth valve in a closed state without the cooling water filled in the cooling chamber;

When the heater is heated, the pressure in the drying chamber rises, the water in the food waste is discharged to generate steam in the chamber, and the vapor pressure rises, and the steam pushes the air in the drying chamber to the first valve and the second. A second step through the valve and the third valve,

A third step of supplying cooling water to the cooling chamber by closing the third valve and opening the fourth valve when the flowmeter senses the flow of steam;

When the steam in the pipe in the cooling chamber is cooled to form condensate by the supply of the cooling water, the condensate level sensor senses the condensate level, and closes the first valve and the second valve to discharge the condensate. Opening a third valve to discharge condensate, and opening the fifth valve to bypass the steam;

When the flow meter detects the flow of the bypassed steam, the third and fifth valves are closed again, and the first and second valves are opened to allow the steam to condense in the cooling chamber. It consists of steps,

The steps 4 and 5 are repeated until the drying in the drying chamber is completed.

The opening and closing of the fourth valve may be controlled according to a signal of a thermometer and a level meter installed in the cooling chamber.

According to the present invention having the configuration as described above, by heating the food waste to push the air in the chamber by the steam generated by evaporating the moisture contained in the food waste by forming the inside of the chamber in a state close to the vacuum pressure without a vacuum pump Energy required to heat and dry food waste can be reduced, and a plurality of valves can be used to reduce the energy required to control the cooling water and the cooling temperature required for condensation of water vapor generated from the food waste.

In addition, it is possible to provide a pipe of a size that can be applied to a large amount of food waste treatment system while providing a pipe of a size suitable for a natural vacuum discharge method.

Hereinafter, with reference to the accompanying drawings will be described in detail the food waste treatment system and method according to the present invention.

≪ Example 1 >

1 is a view showing a food waste treatment system according to the present invention.

As shown in FIG. 1, the food waste treatment system 1 according to the present invention includes a drying chamber 2, a heater 4, a cooling chamber 5, a condensate water piping chamber 6, and a piping pipe. 10 and a plurality of valves 21, 22, 23, 24, and 25.

The hay chamber 2 is provided with a stirrer for grinding while stirring food waste.

The heater 4 is provided below the drying chamber, and a heating wire such as a nichrome wire is disposed below the drying chamber to heat the drying chamber. The heater may be a combination of microwaves used in a microwave oven.

In addition, by installing the first thermometer 30 on the upper side of the drying chamber 2, when the first thermometer detects a predetermined temperature, for example 95 ~ 100 ℃ can be controlled to open and close the valve.

In addition, the pressure gauge 40 is provided above the drying chamber, and when the positive pressure is sensed by the pressure gauge, the valve may be opened and closed.

The cooling chamber 5 is disposed on one side of the drying chamber. In the cooling chamber 5, a plurality of pipe pipes 10 to be described later are arranged and connected to each other in a horizontal direction, and a cooling water storage tank 70 is provided outside the cooling chamber to provide cooling water through a fourth valve to be described later. Is supplied.

In addition, a second thermometer 31 for sensing the temperature of the coolant supplied in the cooling chamber is provided in the cooling chamber. 4 The valve can be controlled to open and close.

In addition, the cooling chamber is configured to adjust the inflow and discharge of the cooling water by placing a plurality of level meters 50 for detecting the level of the cooling water in the cooling chamber in the upper and lower positions.

In addition, the hot water discharge hole 52 is provided on the upper side of the cooling chamber, and when the cooling water is heated to increase the temperature to become hot water, it can be discharged or used for overflow in the cooling chamber.

On the downstream side of the cooling chamber, and in this embodiment, the condensate piping chamber 6 is provided on the lower side of the cooling chamber.

The condensate piping chamber 6 has a pipe pipe disposed in the cooling chamber to extend so that the condensed water cooled and condensed in the cooling chamber passes, and a condensate storage tank 71 is downstream of the condensate piping chamber. It is prepared.

On the other hand, the pipe pipe 10, one end of the upstream side is connected to the upper side in the drying chamber, and then a plurality of horizontally stacked in the cooling chamber and the condensate piping chamber is arranged and connected to each other.

In the present invention, the pipe pipe is heated to the drying chamber, the moisture contained in the food waste flows into the drying chamber is formed by the vapor evaporation, the steam in the drying pipe into the pipe as the vapor pressure rises In order to pass through the inside of the pipe pipe while pushing out air, it is composed of a pipe having a constant inner diameter.

That is, the inner diameter of the pipe pipe is preferably in the range of 0.5cm to 3cm.

When the inner diameter of the pipe pipe is smaller than 0.5 cm, it is difficult to achieve a smooth discharge of steam generated by heating food waste, and when the inner diameter is larger than 3 cm, steam generated by heating the food waste does not push air in the drying chamber. Because you can not.

In this embodiment, the inner diameter of the pipe pipe is 0.6 cm.

On the other hand, a plurality of valves (21, 22, 23, 24, 25) are arranged at a predetermined point of the pipe pipe.

A first valve 21 is provided upstream of the pipe pipe, that is, in the vicinity of the pipe pipe connected to the upper side of the drying chamber from the outside of the cooling chamber to control the inflow of steam and air from the drying chamber to the cooling chamber. do.

A second valve 22 is provided between the downstream side of the cooling chamber and the upstream side of the response water piping chamber, that is, the pipe pipe passing through the cooling chamber from the outside of the cooling chamber to condensate the condensate pipe. To control the inflow.

A third valve 23 is provided downstream in the condensate piping chamber to control the discharge of condensate.

In addition, a bypass piping pipe 13 is provided between the first valve and the second valve, and a fifth valve 25 is provided in the bypass piping pipe. Thus, by providing a 5th valve, if the vapor | steam in the said pipe in the said cooling chamber is cooled by the supply of the said cooling water, and forms condensed water, the 1st valve and the said 2nd valve will be discharged | emitted for discharge of condensed water. Is closed and the third valve is opened to discharge the condensed water, the fifth valve is opened and heated in the drying chamber so that the high temperature steam is continuously supplied into the cooling chamber to condense the steam in the cooling chamber. Prevents the continuous supply of energy to supply the cooling water required for cooling or to control the cooling temperature, and bypasses the high temperature steam to control the cooling water and cooling temperature necessary for condensation of water vapor from food waste. Can save energy

In addition, a condensate level sensor 51 is installed downstream of the second valve to sense the flow rate of the condensate condensed in the cooling chamber. In addition, a flow meter 60 is disposed upstream of the third valve to sense the flow rate of the steam passing through the pipe pipe and the bypass pipe pipe.

The food waste processing method by the food waste processing system which concerns on this invention which has the structure as mentioned above is demonstrated.

As shown in Fig. 5, first, the first valve, the second valve and the third valve are opened while the cooling chamber is not filled with the cooling water, and the fourth valve and the fifth valve are set in a closed state. (S1)

Then, when the heater is heated, the pressure in the drying chamber is increased while the moisture in the food waste is discharged to generate steam in the chamber, thereby increasing the vapor pressure. Since the steam at an elevated steam pressure can pass through the air in the drying chamber through a pipe pipe of the size as described above, the steam together with the air is provided with the first valve and the second valve installed in the pipe pipe. Passes through the valve and the third valve (S2).

When the steam and air pass through the third valve, the flow meter installed upstream of the third valve detects the flow of the steam. When the flowmeter detects the flow of the steam, the first valve and the second valve are closed and the fifth valve is opened to push the air passed through the bypass pipe pipe. Then, when the flowmeter detects the flow of steam passing through the fifth valve, the third valve and the fifth valve are closed, the first valve and the second valve are opened, and the fourth valve is opened. To supply cooling water to the cooling chamber.

Then, the steam in the pipe in the cooling chamber is cooled by the supply of the cooling water to form condensate, and the amount of condensate increases so that the condensate is filled in the pipe pipe in the condensate piping chamber. Detect the level. When the condensate level sensor detects a certain level of condensate, the condensate is discharged by the pressure of the reformed steam by closing the first valve and the second valve and opening the third and fifth valves to discharge the condensate. (S4)

As a result, since the heated steam is not supplied to the pipe pipe disposed in the cooling chamber while the condensed water is discharged, it is not necessary to continuously supply the cooling water into the cooling chamber, thereby saving energy.

Then, when the flowmeter detects the flow of the bypassed steam, the third valve and the fifth valve are closed again, and the first valve and the second valve are opened to allow steam to condense in the cooling chamber. (S5)

Then, the fourth and fifth steps are repeated until the drying in the drying chamber is completed. As described above, as the third to fifth steps are repeated, moisture and air contained in the food waste in the drying chamber are gradually eliminated, and thus the pressure in the drying chamber is dropped to become a vacuum state. Accordingly, since the boiling point of the water vapor is lowered, the energy consumption of the heater for generating water vapor is reduced, thereby increasing the efficiency. In addition, as the boiling point of the water vapor is lowered, the temperature of the generated steam is lowered, so that the temperature of the cooling water detected in the cooling chamber is lowered, and energy required for temperature control of the cooling water is also reduced.

On the other hand, the opening and closing of the fourth valve is controlled in accordance with the signal of the thermometer, the level meter installed in the cooling chamber, and further installs a separate thermometer in the condensate storage tank, the steam is introduced after the bubble treatment and the temperature rises separately It may be controlled to open and close the fourth valve to supply the coolant by receiving a signal from the thermometer.

<Example 2>

The components of the food waste treatment system according to the present embodiment are the same as the components of the system of the first embodiment, and only the configuration and arrangement of the large-capacity piping pipes are different, so that duplicate description of the same components is omitted.

2 is a view showing another example of the pipe pipe of the food waste treatment system according to the present invention, Figure 3 is a view showing another example.

As shown in FIG. 2 and FIG. 3, a part of the pipe pipe is composed of a large capacity pipe pipe 11. The large-capacity pipe pipe is formed such that the inlet and outlet sides are inclined and connected to the pipe pipe 10 at a connection point, so that inflow and outflow of steam and air can be made smoothly, and a central portion of the pipe pipe has an inner diameter of the pipe pipe. It is formed in the cylindrical shape which has a larger inner diameter.

In addition, as shown in Figure 2, by bypassing the large-capacity pipe pipe upstream of the condensate discharge chamber, it is pushed by the steam heated in the initial stage, that is, the first to third stages of the first embodiment The discharge of air can be configured more smoothly.

In addition, as shown in FIG. 3, a part of the piping pipe disposed in the cooling chamber is constituted by a plurality of the large-capacity piping pipes, whereby steam and The discharge of air can be configured more smoothly.

In addition, as shown in FIG. 3, the pipe pipes arranged in the cooling chamber are constituted by pipe pipes which are arranged in a plurality of vertical pipes, not vertically, that is, the upper and lower sides of the cooling chamber. Smooth steam and air can be discharged.

<Example 3>

The components of the food waste treatment system according to the present embodiment are the same as the components of the system of the first embodiment, and only a part of the configuration and arrangement of the pipe pipes is different, and thus, redundant description of the same components is omitted. do.

4 is a view showing still another example of the piping pipe of the food waste treatment system according to the present invention.

As shown in FIG. 4, even if a part of the piping pipe leading from the drying chamber to the cooling chamber is constituted by a flexible pipe 12 made of a flexible material, the piping pipe may be changed even when vibration is expected or frequent replacement of the drying chamber is required. It can be configured so that it does not need to be replaced.

Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the present embodiments may be modified without departing from the spirit or spirit of the invention. It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

1 is a view showing an embodiment of a food waste treatment system according to the present invention.

2 is a view showing another example of the piping pipe of the food waste treatment system according to the present invention.

3 is a view showing still another example of the piping pipe of the food waste treatment system according to the present invention.

4 is a view showing still another example of the piping pipe of the food waste treatment system according to the present invention.

5 is a view for explaining a food waste treatment method according to the present invention.

6 is a view showing a conventional food waste treatment system.

<Description of the symbols for the main parts of the drawings>

1: Food Waste Disposal System

2: drying chamber 3: stirrer

4 heater 5 cooling chamber

6: condensate pipe

10: pipe pipe 11: large capacity pipe pipe

12: flexible pipe 13: bypass piping pipe

21: first valve 22: second valve

23: third valve 24: fourth valve

25: fifth valve

30: the first thermometer 31: the second thermometer

40: pressure gauge

50 level gauge 51: condensate level sensor

60: flow meter

70: cooling water storage tank 71: condensate storage tank

Claims (9)

A drying chamber having a stirrer for pulverizing while stirring food waste; A heater installed under the drying chamber to heat the drying chamber; A cooling chamber for cooling steam generated from the food waste heated in the drying chamber; A condensate piping chamber through which condensed water cooled and condensed in the cooling chamber passes; A pipe pipe whose one end is connected to an upper side of the drying chamber and is arranged to pass through the cooling chamber and the condensate pipe chamber, and through which steam and air in the drying chamber pass; A first valve installed in a vicinity of a pipe pipe connected to an upper side of the drying chamber outside the cooling chamber to control inflow of steam and air into the cooling chamber; A second valve installed in a pipe pipe passing through the cooling chamber outside the cooling chamber to control inflow of condensate into the condensate pipe chamber; A third valve installed in the condensate pipe chamber and controlling discharge of condensate; A fourth valve installed at one side of the cooling chamber to control inflow of the cooling water from the cooling water storage tank to the cooling chamber; Food waste processing system, characterized in that configured to include. The food waste treatment system according to claim 1, further comprising a bypass pipe provided between the first valve and the second valve, and a fifth valve provided in the bypass pipe. The method of claim 1, A condensate level sensor installed at a downstream side of the second valve to sense a flow rate of the condensate condensed in the cooling chamber; A flow meter disposed on an upstream side of the third valve to sense a flow rate of steam passing through the pipe pipe and the bypass pipe pipe; Food waste processing system, characterized in that it further comprises. The food waste treatment system according to claim 1 or 2, wherein an inner diameter of the pipe pipe and the bypass pipe pipe is in a range of 0.5 cm to 3 cm. The food waste treatment system according to claim 1 or 2, wherein a part of the pipe pipe is an inlet and an outlet side which are inclined, and a central part thereof is a large capacity pipe pipe formed in a cylindrical shape. The food waste treatment system according to claim 5, wherein the large-capacity pipe pipe is arranged in a vertical direction. The food waste treatment system according to claim 1 or 2, wherein a part of the pipe pipe is formed of a flexible tube made of a flexible material. A drying chamber having an agitator installed therein, a heater for heating the drying chamber, a cooling chamber for cooling steam generated from food waste heated in the drying chamber, and condensed water cooled and condensed in the cooling chamber passes. A condensate pipe chamber, one end of which is connected to an upper side of the drying chamber, a pipe pipe disposed to pass through the cooling chamber and the condensate pipe chamber, and a pipe pipe connected to an upper side of the drying chamber outside the cooling chamber. A first valve installed in the vicinity, a second valve provided in a pipe pipe passing through the cooling chamber outside the cooling chamber, a third valve provided in the condensate pipe, and a fourth valve provided on one side of the cooling chamber. And a fifth valve installed in the bypass pipe pipe provided between the first valve and the second valve. And the condensed water level sensor installed at the downstream side of the second valve, and having a flow meter arranged upstream of the third valve, A first step of opening the first valve, the second valve, and the third valve, and setting the fourth valve and the fifth valve in a closed state without the cooling water filled in the cooling chamber; When the heater is heated, the pressure in the drying chamber rises, the water in the food waste is discharged to generate steam in the chamber, and the vapor pressure rises, and the steam pushes the air in the drying chamber to the first valve and the second. A second step through the valve and the third valve, When the flowmeter detects the flow of the steam, the first valve and the second valve are closed, the fifth valve is opened to push out the air passing through the bypass pipe pipe, and then passes through the fifth valve. And when the flowmeter detects the flow of steam, closes the third valve and the fifth valve, opens the first valve and the second valve, opens the fourth valve, and supplies coolant to the cooling chamber. With three stages, When the steam in the pipe in the cooling chamber is cooled to form condensate by the supply of the cooling water, the condensate level sensor senses the condensate level, and closes the first valve and the second valve to discharge the condensate. Opening a third valve to discharge condensate, and opening the fifth valve to bypass the steam; When the flow meter detects the flow of the bypassed steam, the third and fifth valves are closed again, and the first and second valves are opened to allow the steam to condense in the cooling chamber. It consists of steps, And repeating the third to fifth steps until the drying in the drying chamber is completed. The method of claim 8, Opening and closing of the fourth valve is a food waste treatment method, characterized in that controlled in accordance with the signal of the thermometer, the level meter installed in the cooling chamber.

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