JP2001046858A - Waste treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste treatment apparatus capable of supplying waste and an oxidizing agent to a reactor without using a high pressure pump and a compressor. SOLUTION: A filling chamber 130 temporarily filled with a waste slurry 10 and an oxidizing agent 30 is provided to the upper part of a reactor 60. At first, the waste slurry 10 is supplied to the filling chamber 130 by opening a waste supply valve 100 in such a state that a charging valve 110 and an oxidizing agent supply valve 140 are closed. Next, the oxidizing agent 30 is supplied to the filling chamber 130 by opening the oxidizing agent supply valve 140 in such a state that the charging valve 110 and the waste supply valve 100 are closed. Finally, the waste slurry 10 and oxidizing agent 30 charged in the filling chamber 130 are charged in the reactor 60 by opening the charging valve 110 in such a state that the waste supply valve 100 and the oxidizing agent supply valve 140 are closed. By this constitution, the waste slurry 10 and the oxidizing agent 30 can be supplied to the reactor 60 without using a high pressure pump and a compressor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste treatment apparatus, and more particularly to a waste treatment apparatus in which waste and an oxidizing agent are charged into a reactor heated and pressurized to a supercritical temperature and pressure of water. The present invention relates to a waste treatment apparatus for performing oxidation treatment.

[0002]

2. Description of the Related Art Conventionally, in order to continuously feed waste and oxidant into a reactor for oxidizing waste under high-pressure conditions, a pump and a compressor for feeding waste and oxidant at high pressure are required. Met.

FIG. 4 is a flow chart of a waste oxidation process using supercritical water. The system includes a high-pressure pump 20 for supplying a waste slurry 10 containing water, a compressor 40 for supplying an oxidizing agent 30, a heater 50, a reactor 60, a cooler 70,
It comprises a back pressure valve 80 and a gas-liquid separator 90. The waste slurry 10 is pressurized to 25 MPa by the high-pressure pump 20, and is heated to the critical temperature of water 37 by the heater 50.
After being heated to 4 ° C. or higher, it is charged into the reactor 60. On the other hand, the oxidizing agent 30 is charged into the reactor 60 after being pressurized to 25 MPa by the compressor 40. The waste is oxidized in a reactor 60 in which supercritical water is present, cooled and depressurized by a cooler 70 and a back pressure valve 80, and finally separated into exhaust gas and treated water by a gas-liquid separator 90. You.

[0004]

However, in the above-mentioned conventional system, a high-pressure pump and a high-pressure compressor each having a discharge pressure higher than the reaction pressure are required for charging the waste and the oxidizing agent into the reactor. There was a disadvantage of becoming.
In particular, when the solid concentration of the waste slurry is high, a special high-pressure pump is required, which has been a factor of increasing equipment costs.

[0005] Further, since a compressor capable of pressurizing oxygen to 25 MPa is not a general-purpose product, the use of oxygen as an oxidizing agent causes an increase in initial cost.

Further, these high-pressure pumps and high-pressure compressors have low energy efficiency and require large power,
There was a disadvantage that the operating cost was increased.

[0007] The present invention has been made in view of such circumstances, and provides a waste treatment apparatus capable of supplying waste and an oxidizing agent to a reactor without using a high-pressure pump, a compressor, or the like. With the goal.

[0008]

The invention according to claim 1 is
In order to achieve the above object, in a waste treatment apparatus for oxidizing waste by charging waste and an oxidizing agent into a reactor in a high-pressure state, the waste treatment apparatus is provided at an upper portion of the reactor and communicated with the reactor. A filling chamber having a waste supply port to which waste is supplied and an oxidant supply port to which an oxidant is supplied; a charging valve provided in a communication portion between the reactor and the filling chamber; A waste supply valve provided at a waste supply port of the apparatus, and an oxidant supply valve provided at an oxidant supply port of the filling chamber, wherein the input valve and the oxidant supply valve are closed and the oxidant supply valve is closed. Opening a waste supply valve to supply waste to the filling chamber, supplying the oxidant to the filling chamber by opening the oxidant supply valve with the input valve and the waste supply valve closed, The waste supply valve and the front The waste filled in the filling chamber by opening the the closing valve in a state of closing the oxidant supply valve and said oxidizing agent, characterized in that introduced into the reactor.

The method for charging the waste and the oxidizing agent in the waste processing apparatus according to the present invention is as follows. First, the waste supply valve is opened with the input valve and the oxidant supply valve closed, and the waste is supplied to the filling chamber. Next, the oxidant is supplied to the filling chamber by opening the oxidant supply valve with the charging valve and the waste supply valve closed. Finally, the supply valve is opened with the waste supply valve and the oxidant supply valve closed. As a result, the waste and the oxidant filled in the filling chamber fall under their own weight and are charged into the reactor.
According to the present invention, the waste to be treated and the oxidizing agent can be charged into the high-pressure reactor using a pump, a compressor, or the like having a discharge pressure lower than the reaction pressure. The opening and closing of each valve may be performed manually, or may be automatically controlled.

In order to achieve the above object, the invention according to a second aspect of the present invention relates to a waste treatment apparatus for oxidizing waste by charging waste and an oxidizing agent into a reactor in a high pressure state. A first filling chamber provided at an upper portion of the chamber and having an oxidizing agent supply port through which the oxidizing agent is supplied and communicating with the inside of the reactor, and provided at an upper portion of the first filling chamber and communicating with the first filling chamber; And a second filling chamber having a waste supply port to which waste is supplied and an oxidant supply port to which an oxidant is supplied, and a charging valve provided at a communication portion between the reactor and the first filling chamber. An intermediate valve provided between the first filling chamber and the second filling chamber; a waste supply valve provided at a waste supply port of the second filling chamber;
A first oxidant supply valve provided at the oxidant supply port of the filling chamber; and a second oxidant supply valve provided at the oxidant supply port of the second filling chamber.
An oxidizing agent supply valve, and supply the waste to the first filling chamber by opening the intermediate valve and the waste supplying valve with the charging valve, the first oxidizing agent supplying valve and the second oxidizing agent supplying valve closed. The waste supply valve is opened with the input valve, the intermediate valve, the first oxidant supply valve and the second oxidant supply valve closed, and the waste is supplied to the second filling chamber, and the input valve, the intermediate valve, With the waste supply valve and the second oxidant supply valve closed, the first oxidant supply valve is opened to supply the oxidant to the first filling chamber, and the input valve, the intermediate valve, the waste supply valve, and the first oxidation With the oxidant supply valve closed, open the second oxidant supply valve to supply the second oxidant.
Supply to filling chamber, intermediate valve, waste supply valve, 1st
With the oxidizing agent supply valve and the second oxidizing agent supply valve closed, the charging valve is opened, and the waste and the oxidizing agent filled in the first filling chamber are charged into the reactor. Opening the intermediate valve with the first oxidant supply valve and the second oxidant supply valve closed and supplying the waste and the oxidant filled in the second filling chamber to the first filling chamber;
With the intermediate valve, the waste supply valve, the first oxidant supply valve, and the second oxidant supply valve closed, open the injection valve to put the waste and the oxidant filled in the first filling chamber into the reactor. It is characterized by throwing.

The method for charging the waste and the oxidizing agent in the waste treatment apparatus according to the present invention is as follows. First, the intermediate valve and the waste supply valve are opened with the input valve, the first oxidant supply valve, and the second oxidant supply valve closed. Thereby, waste is supplied to the first filling chamber. Next, the waste supply valve is opened with the input valve, the intermediate valve, the first oxidant supply valve, and the second oxidant supply valve closed. Thereby, waste is supplied to the second filling chamber. Next, the first oxidant supply valve is opened with the input valve, the intermediate valve, the waste supply valve, and the second oxidant supply valve closed. Thereby, the oxidizing agent is supplied to the first filling chamber. Next, the second oxidant supply valve is opened with the input valve, the intermediate valve, the waste supply valve, and the first oxidant supply valve closed. Thereby, the oxidizing agent is supplied to the second filling chamber. Next, the injection valve is opened while the intermediate valve, the waste supply valve, the first oxidant supply valve, and the second oxidant supply valve are closed. As a result, the waste and the oxidant filled in the first filling chamber fall into the reactor under their own weight and are charged. Next, the intermediate valve is opened with the input valve, the waste supply valve, the first oxidant supply valve, and the second oxidant supply valve closed. Thereby, the waste and the oxidant filled in the second filling chamber fall by their own weight and are supplied to the first filling chamber. Next, an intermediate valve, a waste supply valve, a first oxidant supply valve, and a second
Open the injection valve with the oxidant supply valve closed.
As a result, the waste and the oxidant filled in the first filling chamber fall under their own weight and are charged into the reactor. ADVANTAGE OF THE INVENTION According to this invention, the amount of heat loss at the time of inputting waste and an oxidizing agent can be reduced. The opening and closing of each valve may be performed manually, or may be automatically controlled.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a waste disposal apparatus according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a configuration diagram of a first embodiment of a waste disposal apparatus according to the present invention. A heater (or a cooler) 160 is provided in the reactor 60 for oxidizing waste. The reactor 60 is controlled to a predetermined temperature (374 ° C. or higher) by the heat of the oxidation reaction of the waste and the heater (or the cooler) 160. The pressure in the reactor 60 is controlled by a back pressure valve 80, and the generated carbon dioxide gas, nitrogen gas, and water vapor are discharged from the reactor 60 through the cooler 70 and the back pressure valve 80, and the gas-liquid separation is performed. The gas is separated into exhaust gas and treated water by a vessel 90.

At the top of the reactor 60, a waste slurry 10
And an inlet 62 for an oxidant (eg, oxygen gas) 30 are formed. The charging chamber 130 is connected to the charging port 62 via a charging valve 110. The filling chamber 130
The waste slurry 10 and the oxidizing agent 30 to be charged into the reactor 60 are temporarily filled. The waste slurry 10 and the oxidizing agent 30 filled in the filling chamber 130 drop under their own weight from the charging port 62 by opening the charging valve 110, and fall into the reactor 6
It is thrown into 0.

In the filling chamber 130, a waste supply port 132 for supplying the waste slurry 10 into the filling chamber 130 and an oxidant supply port 134 for supplying the oxidant 30 are formed. A waste supply pipe 102 is connected to the waste supply port 132 via a waste supply valve 100. The waste slurry 10 is supplied into the filling chamber 130 by a pump (or feeder) 120 connected to the waste supply pipe 102. On the other hand, the oxidizing agent supply port 134 is connected to the oxidizing agent supply pipe 1 through the oxidizing agent supply valve 140.
42 are connected. The oxidizing agent 30 is adjusted to a predetermined pressure from a cylinder (not shown) by a compressor 150 connected to the oxidizing agent supply pipe 142 and supplied into the filling chamber 130.

The operation of the waste disposal apparatus of the first embodiment configured as described above is as follows.

First, the waste supply valve 100 is opened with the charging valve 110 and the oxidizing agent supply valve 140 closed, and a pump (or feeder) 120 is used to fill the charging chamber 13.
0 is supplied with a predetermined amount of the waste slurry 10. After the supply, the waste supply valve 100 is closed.

Next, the oxidizing agent supply valve 140 is opened with the charging valve 110 and the waste supplying valve 100 closed, and the oxidizing agent 30 is supplied to the filling chamber 130 using the compressor 150. Here, the oxidizing agent 30 is supplied into the filling chamber 130 at a pressure lower than the reaction pressure in the reactor 60. After the supply, the oxidant supply valve 140 is closed.

Next, the charging valve 110 is opened with the waste supply valve 100 and the oxidant supply valve 140 closed, and the waste slurry 10 and the oxidant 30 filled in the filling chamber 130 are fed into the reactor 60. Let fall inside.

The reactor 60 is heated to a predetermined temperature (374 ° C.) by the heat of oxidation reaction of the waste and a heater (or a cooler) 160.
Therefore, the waste falling into the reactor 60 is immediately oxidized. The pressure increases due to carbon dioxide gas, nitrogen gas and the like generated as the waste is oxidized, and due to the expansion of water in the waste slurry. Since the pressure in the reactor 60 is controlled by the back pressure valve 80, the generated carbon dioxide gas, nitrogen gas, and steam are
The gas is discharged from the reactor 60 through the cooler 70 and the back pressure valve 80, and is separated into exhaust gas and treated water by the gas-liquid separator 90.

As described above, according to the waste treatment apparatus of the present embodiment, the waste slurry 10 is temporarily supplied to the normal pressure filling chamber 130 and then charged into the reactor 60. The waste slurry 10 can be charged by using the pump or the feeder described above. The pressure of the oxidizing agent 30 supplied to the filling chamber 130 is lower than the reaction pressure of the reactor 60,
Further, since the pressure is lower than the filling pressure of the cylinder, general-purpose products can be used for the compressor.

FIG. 2 is a configuration diagram of a second embodiment of the waste disposal apparatus according to the present invention. Note that the same components as those of the waste treatment apparatus according to the first embodiment are denoted by the same reference numerals.

As shown in the figure, the waste treatment apparatus according to the second embodiment is different from the waste treatment apparatus according to the first embodiment in that the filling chamber 130 is divided into a first filling chamber 130A and a second filling chamber 130A. It is divided into two equal parts with the chamber 130B. First filling chamber 13
0A and the second filling chamber 130B, an intermediate valve 17 is provided.
When the intermediate valve 170 is opened, the waste slurry and the oxidant filled in the second filling chamber 130B fall into the first filling chamber 130A.

Further, a first oxidizing agent supply pipe 142A is connected to the first filling chamber 130A, and a first oxidizing agent supply valve 14 provided in the first oxidizing agent supply pipe 142A is provided.
By opening 0A, the oxidizer adjusted to a predetermined pressure by the compressor 150 is supplied into the first filling chamber 130A.

On the other hand, a second oxidant supply pipe 142B is connected to the second filling chamber 130B, and a second oxidant supply valve 14 provided in the second oxidant supply pipe 142B.
By opening 0B, the oxidizing agent adjusted to a predetermined pressure by the compressor 150 is supplied into the second filling chamber 130B.

The operation of the waste disposal apparatus of the second embodiment configured as described above is as follows.

First, with the charging valve 110, the second oxidizing agent supply valve 140B and the first oxidizing agent supply valve 140A closed, the intermediate valve 170 and the waste supply valve 100 are closed.
And waste slurry 10 which is usually charged in one process
A half amount of the waste slurry 10 is supplied by a pump (or feeder) 120. The supplied waste slurry 10 falls through the second filling chamber 130B as it is and is supplied into the first filling chamber 130A due to the opening of the intermediate valve 170. After the supply, the intermediate valve 170
Close.

Next, the other half of the waste slurry 10 is supplied by a pump (or feeder) 120. The supplied waste slurry 10 is supplied into the second filling chamber 130B by closing the intermediate valve 170. After the supply, the waste supply valve 100 is closed.

Next, the charging valve 110, the intermediate valve 17
0, with the waste supply valve 100 and the second oxidant supply valve 140B closed, the first oxidant supply valve 140A
Is opened, and the oxidizing agent 30 is supplied to the first filling chamber 130A in an amount that is half of the input amount of the oxidizing agent 30 normally supplied in one process. After the supply, the first oxidant supply valve 140A is closed.

Next, the charging valve 110, the intermediate valve 17
0, with the waste supply valve 100 and the first oxidant supply valve 140A closed, the second oxidant supply valve 140B
Is opened, and the other half of the oxidizing agent 30 is supplied to the second filling chamber 130B. After the supply, the second oxidant supply valve 140B is closed.

Next, with the intermediate valve 170, the waste supply valve 100, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the charging valve 110 is closed.
Open. As a result, the waste slurry 10 and the oxidizing agent 30 filled in the first filling chamber 130A fall into the reactor 60 by their own weight and are thrown into the reactor 60. After the charging, the charging valve 110 is closed.

Next, the intermediate valve 170 with the charging valve 110, the waste supply valve 100, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed.
Open. As a result, the waste slurry 10 and the oxidant 30 filled in the second filling chamber 130B are mixed with the first filling chamber 13B.
It falls under its own weight in 0A.

Next, with the intermediate valve 170, the waste supply valve 100, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the charging valve 110 is closed.
Open. As a result, the waste slurry 10 and the oxidizing agent 30 filled in the first filling chamber 130A fall into the reactor 60 by their own weight and are thrown into the reactor 60. After the charging, the charging valve 110 is closed.

Next, with the supply valve 110, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the waste supply valve 100 and the intermediate valve 170 are closed.
And prepare for the next input.

According to the waste disposal apparatus of the present embodiment,
Heat loss at the time of injection can be reduced.

FIG. 3 is a configuration diagram of a third embodiment of the waste disposal apparatus according to the present invention. Note that the same components as those of the waste disposal apparatus according to the first embodiment are denoted by the same reference numerals.

As shown in the figure, the waste treatment apparatus of the third embodiment circulates the gas in the reactor 60 to the filling chamber 130 of the waste treatment apparatus of the first embodiment. A circulation line 190 is provided. One end of the circulation line 190 is connected to the upper part of the reactor 60, and the other end is connected to the filling chamber 130. A blower 200 and a circulation valve 210 are provided in the middle of the path.

In the waste treatment apparatus of the third embodiment configured as described above, the waste slurry 10 and the oxidant 30 temporarily filled in the filling chamber 130 are dropped into the reactor 60, By opening the circulation valve 210 and operating the blower 200, the gas in the reactor
Circulate within 0.

According to the waste disposal apparatus of the present embodiment,
The oxidizing agent remaining in the filling chamber 130 after the waste slurry 10 and the oxidizing agent 30 are dropped into the reactor 60 can be reduced, and the oxidizing agent to be supplied can be used effectively.

In the series of embodiments described above, the opening and closing operation of each valve may be manually performed by an operator, or may be automatically controlled by a control device.

[0041]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment of the waste disposal apparatus according to the present invention will be described.

First, a method of charging waste and an oxidizing agent using the waste processing apparatus of the first embodiment will be described.

Table 1 shows an example of the waste treatment conditions. Table 2 shows the results obtained by using the waste treatment apparatus of the first embodiment.
7 is an example of waste input conditions when processing waste under the conditions shown in FIG.

[0044]

[Table 1] Waste treatment conditions

[0045]

[Table 2] Input conditions In the case of the conditions in Table 1, the amount of heat required to maintain the waste slurry to be treated at a reaction temperature of 400 [° C.] and a reaction pressure of 25 [MPa] is 1,378 [MJ / day],
The total amount of heat and calorific value of the waste slurry before input is 2,
Since it is 602 [MJ / day], there is a possibility that a system that does not require external energy can be constructed.

The reaction temperature was 400 ° C. and the pressure was 25MP.
a. Since the processing time is 30 minutes, the volume of the reactor is 86 [liter]. Assuming that the volume of the filling chamber is 5 [liters], the heat loss per heat (the amount of heat leaking to the outside when the valve is opened and closed) is 1,416 [kJ] based on the volume of the filling chamber and the heat capacity of water in the reactor. / Times]. Therefore, the maximum possible number of times of charging for operation without inputting external energy is 864 [times / day] (= (2, 602-1, 378) /
1.416).

Assuming that the number of times of filling is the maximum possible number of times, the filling amounts of waste slurry and oxygen gas per time are 1.16 [kg / time] and 0.21 [kg / time], respectively.
When 0.21 [kg] of oxygen gas is charged into the charging chamber, the pressure of the oxygen gas becomes 4.14 [MPa], and the discharge pressure of the oxygen compressor can be reduced by 20 [MPa] or more.
When external energy is supplied, the number of times of filling can be increased more than the maximum possible filling, so that the discharge pressure of the compressor can be further reduced.

Next, a description will be given of an example of a method of charging waste and an oxidizing agent by the waste processing apparatus according to the second embodiment.

First, with the charging valve 110, the second oxidizing agent supply valve 140B, and the first oxidizing agent supply valve 140A closed, the intermediate valve 170 and the waste supply valve 100 are closed.
And waste slurry 1 per input shown in Table 2.
The waste slurry 10 of half of the input amount of 0, that is, 0.58 [kg] is supplied by a pump (or feeder) 120. The supplied waste slurry 10 is supplied to the intermediate valve 1.
Since 70 is open, it falls in the second filling chamber 130B as it is and is supplied into the first filling chamber 130A.
After the supply, the intermediate valve 170 is closed.

Next, the other half, that is, 0.58 [k
g] of the waste slurry 10 into a pump (or feeder) 12.
Supply by 0. The supplied waste slurry 10 is:
When the intermediate valve 170 is closed, it is supplied into the second filling chamber 130B. After supply, waste supply valve 1
Close 00.

Next, the injection valve 110, the intermediate valve 17
0, with the waste supply valve 100 and the second oxidant supply valve 140B closed, the first oxidant supply valve 140A
And half of the amount of oxidizing agent per one time shown in Table 2,
That is, 0.105 [kg] of the oxidizing agent 30 is supplied to the first filling chamber 130A. After the supply, the first oxidant supply valve 1
Close 40A.

Next, the charging valve 110, the intermediate valve 17
0, with the waste supply valve 100 and the first oxidant supply valve 140A closed, the second oxidant supply valve 140B
And the other half, that is, 0.105 [kg] of the oxidizing agent 30 is supplied to the second filling chamber 130B. After supply, the second
The oxidant supply valve 140B is closed.

Next, with the intermediate valve 170, the waste supply valve 100, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the injection valve 110 is closed.
Open. As a result, the waste slurry 10 and the oxidizing agent 30 filled in the first filling chamber 130A fall into the reactor 60 by their own weight and are thrown into the reactor 60. At this time, the first filling chamber 130A
708 [kJ], which is half the heat quantity of the first embodiment described above, flows therein. After the charging, the charging valve 110 is closed.

Next, with the charging valve 110, the waste supply valve 100, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the intermediate valve 170 is closed.
Open. As a result, the waste slurry 10 and the oxidant 30 filled in the second filling chamber 130B are mixed with the first filling chamber 13B.
It falls under its own weight in 0A. At this time, the first filling chamber 130A
The amount of heat 708 [kJ] inside the first charging chamber 130B and the first charging chamber 130B
Diffusion into the effective volume portion with the filling chamber 130A, 400 [kJ] in the second filling chamber 130B and 30 [kJ] in the first filling chamber 130A.
8 [kJ].

Next, with the intermediate valve 170, the waste supply valve 100, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the charging valve 110 is closed.
Open. As a result, the waste slurry 10 and the oxidant 30 filled in the first filling chamber 130A fall into the reactor 60 by their own weight. At this time, the amount of heat in the first filling chamber 130A becomes 708 [kJ] again. After injection, injection valve 11
Close 0.

Next, with the supply valve 110, the first oxidant supply valve 140A and the second oxidant supply valve 140B closed, the waste supply valve 100 and the intermediate valve 170 are closed.
And prepare for the next input. At this time, the second filling chamber 13
The heat amount 400 [kJ] in OB and the heat amount 708 [kJ] in the first filling chamber 130A are respectively radiated into the atmosphere. In this case, the heat loss per injection is 1108
[KJ], which is 78 [%] of the waste disposal apparatus of the first embodiment.

[0057]

As described above, according to the present invention,
A pump with a discharge pressure lower than the reaction pressure in a high-pressure reactor,
The waste to be treated and the oxidizing agent can be supplied into the reactor using a feeder, a compressor, or the like.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a first embodiment of a waste disposal apparatus according to the present invention.

FIG. 2 is a configuration diagram of a second embodiment of the waste disposal apparatus according to the present invention.

FIG. 3 is a configuration diagram of a waste disposal apparatus according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a conventional waste disposal apparatus.

[Explanation of symbols]

10: waste slurry, 20: pump, 30: oxidizing agent, 4
0: compressor, 50: heater, 60: reactor, 62: inlet, 70: cooler, 80: back pressure valve, 90: gas-liquid separator,
100: waste supply valve, 102: waste supply pipe,
110: input valve, 120: pump (or feeder), 130: filling chamber, 132: waste supply port, 134
... Oxidant supply port, 140 ... Oxidant supply valve, 142 ...
Oxidant supply pipe, 150: compressor, 160: heater (or cooler)

Claims (3)

[Claims] 1. A waste treatment apparatus for oxidizing waste by charging waste and an oxidizing agent into a reactor in a high-pressure state, wherein the waste is provided at an upper part of the reactor and communicated with the reactor, A filling chamber having a waste supply port through which the oxidizing agent is supplied and a charging valve provided in a communicating portion between the reactor and the filling chamber; and a waste in the filling chamber. A waste supply valve provided at a supply port; and an oxidant supply valve provided at an oxidant supply port of the filling chamber, wherein the waste supply is performed in a state where the input valve and the oxidant supply valve are closed. Opening a valve to supply waste to the filling chamber, opening the oxidant supply valve with the charging valve and the waste supply valve closed, supplying an oxidant to the filling chamber, and supplying the waste Supply valve and the oxidant supply Waste treatment apparatus characterized by introducing the waste filled in the filling chamber by opening the the closing valve in closed state of the valve and said oxidizing agent to said reactor. 2. A waste treatment apparatus for oxidizing waste by charging waste and an oxidizing agent into a high-pressure reactor, wherein the oxidizing agent is provided above the reactor and communicated with the reactor. Having an oxidant supply port through which the gas is supplied
A second chamber having a filling chamber, a waste supply port provided at an upper portion of the first filling chamber and connected to the first filling chamber, to which waste is supplied, and an oxidant supply port to which an oxidant is supplied; A charging chamber, a charging valve provided at a communication portion between the reactor and the first charging chamber, an intermediate valve provided between the first charging chamber and the second charging chamber, and a second charging chamber A waste supply valve provided at the waste supply port, a first oxidant supply valve provided at the oxidant supply port of the first filling chamber, and a second supply valve provided at the oxidant supply port of the second filling chamber. An oxidizing agent supply valve, and supply the waste to the first filling chamber by opening the intermediate valve and the waste supplying valve with the charging valve, the first oxidizing agent supplying valve and the second oxidizing agent supplying valve closed. And a supply valve, an intermediate valve, a first oxidant supply valve, The waste supply valve is opened and the waste is supplied to the second filling chamber with the second oxidant supply valve closed, and the charging valve, the intermediate valve, the waste supply valve and the second oxidant supply valve are closed. The first oxidant supply valve is opened to supply the oxidant to the first filling chamber, and the input valve, the intermediate valve,
With the waste supply valve and the first oxidant supply valve closed, the second oxidant supply valve is opened to supply the oxidant to the second filling chamber, and an intermediate valve, a waste supply valve, and a first oxidant supply valve are provided. The charging valve is opened with the second oxidizing agent supply valve closed, and the waste and the oxidizing agent filled in the first charging chamber are charged into the reactor, and the charging valve, the waste supplying valve, the first oxidation The intermediate valve is opened with the agent supply valve and the second oxidant supply valve closed, and the waste and the oxidant filled in the second filling chamber are supplied to the first filling chamber 1, and the intermediate valve and the waste supply are provided. The injection valve is opened with the valve, the first oxidant supply valve and the second oxidant supply valve closed, and the waste and the oxidant filled in the first filling chamber are introduced into the reactor. Waste treatment equipment. 3. The apparatus according to claim 1, further comprising a line for circulating the gas in the reactor to the filling chamber.
A waste treatment device as described in the above.