WO2017023062A1

WO2017023062A1 - Apparatus for continuously and simultaneously thermally decomposing solid and liquid waste

Info

Publication number: WO2017023062A1
Application number: PCT/KR2016/008438
Authority: WO
Inventors: 김영심
Original assignee: 박인만; 김영심
Priority date: 2015-07-31
Filing date: 2016-08-01
Publication date: 2017-02-09
Also published as: KR101607869B1

Abstract

The present invention provides a thermal decomposition apparatus comprising: a shaft disposed in a vertical direction in a thermal decomposition chamber; a liquid waste introduction passage including a waste stirring unit having a blade mounted on the shaft, and provided in the inner region of the shaft in the lengthwise direction of the shaft; a liquid waste discharge pipe connected to communicate with the passage of the shaft at a height separated upward from the bottom end of the passage; an annular valve seat provided higher than the point on the passage at which the liquid waste discharge pipe is connected; and a liquid waste feeding unit disposed below the valve seat in the passage, and having a floating valve body that is raised by the buoyancy imparted by the liquid waste according to the height of the liquid waste introduced into the passage and being sealed against or released from the valve seat.

Description

Devices for the continuous pyrolysis of solid and liquid wastes simultaneously

The present invention relates to a pyrolysis device used to treat waste.

In general, an apparatus for treating waste by pyrolysis includes a pyrolysis furnace into which waste is input, and has a configuration in which pyrolysis furnace is pyrolyzed by heating the pyrolysis furnace.

In the past, the pyrolysis apparatus has a configuration suitable for treating solid waste, such as a supply unit for injecting solid waste into a pyrolysis furnace, so that liquid waste cannot be treated or treatment efficiency of liquid waste is low. There is no problem. Accordingly, there is an urgent need to develop a pyrolysis device capable of efficiently treating liquid waste such as waste oil, which is gradually increasing in generation.

In addition, the high heat generated in the pyrolysis furnace, etc. is not usefully utilized in the pyrolysis process and is discarded as it is, there is a big problem of energy loss.

An embodiment of the present invention has an object to provide a pyrolysis apparatus capable of efficiently treating liquid waste such as waste oil alone, or at the same time efficiently treating solid and liquid waste.

According to an embodiment of the present invention, there is provided a pyrolysis furnace for providing a pyrolysis chamber; A heating furnace surrounding at least a portion of the pyrolysis furnace such that a heating chamber for heating the pyrolysis chamber is formed between the pyrolysis furnace and the pyrolysis furnace; A vacuum unit for forming the pyrolysis chamber in a vacuum atmosphere; A first supply unit (solid waste supply unit) for supplying solid waste to the pyrolysis chamber and a second supply unit (liquid waste supply unit) for supplying liquid waste; A stirring unit for agitating the waste supplied to the pyrolysis chamber, the stirring unit comprising: a rotating shaft disposed in the pyrolysis chamber in a vertical direction; At least one stirring blade mounted to the rotating shaft, wherein the second supply unit comprises: a main flow path provided in an inner region of the rotating shaft in a longitudinal direction of the rotating shaft and into which liquid waste from a liquid waste supply source flows; At least one liquid waste injection pipe connected to the rotating shaft at a height spaced from the lower end of the main flow path so as to communicate with the main flow path, and having a plurality of injection holes to inject liquid waste from the main flow path into the pyrolysis chamber; ; A ring-shaped valve seat provided above the branch point to which the liquid waste injection pipe is connected in the main flow path; And a floating valve body disposed below the valve seat in the main flow path, and floating valve body which is brought into close contact with or released from the valve seat while being lifted by the buoyancy of the liquid waste according to the height of the liquid waste introduced into the main flow path. May be provided.

A stack is provided at an upper portion of the heating furnace, and the second supply unit further includes a liquid waste transfer line which transfers liquid waste from the liquid waste supply source to the main flow path, and a portion of which is wound around the stack a plurality of times. can do.

Alternatively, a chimney is provided at an upper portion of the heating furnace, a heating burner is provided at a lower portion of the heating furnace, and the air heated by the heating burner is moved in the heating chamber while drawing a spiral trajectory toward the chimney. Guide guide plates may be mounted. In addition, an anti-fire plate may be disposed between the pyrolysis furnace and the heating burner to prevent the pyrolysis furnace from being directly heated by the heating burner.

Or, the heating furnace is provided with a gas burner, the upper part of the pyrolysis furnace is connected to the exhaust pipe, the exhaust pipe is connected to the heavy oil collector and diesel oil collector for recovering heavy oil and light oil from the gas flowing into the exhaust pipe, respectively, The outlet of the exhaust pipe may be connected to a gas supply pipe for supplying the discharged gas to the gas burner.

On the other hand, the first supply unit, the transfer drum is connected to the upper portion of the pyrolysis furnace and disposed in the left and right directions; An input hopper connected to the transfer drum; A sealing mechanism for opening and closing the outlet of the input hopper; A transfer screw disposed in an inner space of the transfer drum in a longitudinal direction of the transfer drum; A screw drive mechanism for rotating the feed screw; It may include at least one cutter provided on the inner periphery of the transfer drum for cutting the solid waste transported toward the pyrolysis chamber along the transfer drum.

According to the embodiment of the present invention, liquid waste such as waste oil can be treated more efficiently, such that the supply amount of liquid waste can be kept constant by the action of the floating valve body and the valve seat.

1 is a block diagram showing a pyrolysis device according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of portion A of FIG. 1.

3 is an enlarged view illustrating a portion B of FIG. 1.

Figure 4 is a block diagram showing a pyrolysis device according to a second embodiment of the present invention.

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

A pyrolysis apparatus according to a first embodiment of the present invention is shown in FIGS.

1 to 3, the pyrolysis apparatus according to the first embodiment of the present invention, the

pyrolysis apparatus body

100, 200 having a pyrolysis chamber 112 and a heating chamber 212 for heating the pyrolysis chamber 112. , Vacuum unit 300 for forming pyrolysis chamber 112 in a vacuum atmosphere, solid waste supply unit 400 for supplying solid waste to pyrolysis chamber 112 and liquid waste supply unit 500 for supplying liquid waste, It consists of a stirring unit 600 for stirring the waste supplied to the pyrolysis chamber (112).

The

pyrolysis apparatus bodies

100 and 200 include a pyrolysis furnace 100 and a heating furnace 200.

The pyrolysis furnace 100 includes a pyrolysis furnace body 110 that provides a pyrolysis chamber 112. By pyrolysis, the main body 110 uses an internal region as the pyrolysis chamber 112. The pyrolysis body 110 may be composed of a semi-spherical upper and lower portions and a middle portion of a cylindrical shape that is long in the vertical direction between the upper and lower portions. The pyrolysis solid waste inlet 114 is provided at one side of the upper portion of the main body 110. Reference numeral 116 denotes a residue processing tube, which is connected to the lower portion of the main body 110 by pyrolysis and is opened and closed by a tube closure valve 118.

The furnace 200 is a pyrolysis furnace body 210 which wraps the pyrolysis body 110 at intervals so that a heating chamber 212 for heating the pyrolysis chamber 112 is formed between the body 110 and the pyrolysis furnace. It includes. The furnace body 210 may have a structure that completely encloses the body 110 by pyrolysis, or may have a structure that encloses a portion of the body 110 by pyrolysis. The heating burner 214 which uses gas as a fuel is attached to the lower end of the furnace main body 210, and the air of the heating chamber 212 is heated by the heating burner 214 to high temperature. A pyrolysis prevention plate 215 is disposed between the main body 110 and the heating burner 214 to prevent a phenomenon in which the main body 110 is directly heated by the flame of the heating burner 214. The fire prevention plate 215 is mounted on the furnace body 210.

The heating air inside the heating chamber 212 is lifted up and discharged through the stack 218 provided on the upper portion of the furnace body 210. The heating chamber 212 is equipped with a guide plate 216 for delaying the discharge time of the heating air to improve the heating efficiency of the pyrolysis chamber 112 by the heating air. The guide plate 216 is formed in a shape capable of inducing the flow of the heating air so that the heating air moves while drawing a spiral trajectory toward the stack 218.

The vacuum unit 300 includes a vacuum line 310 mounted on the vacuum line 310 and a vacuum line 310 connected to the pyrolysis chamber 112 through the main body 110 by pyrolysis. Preferably, the vacuum unit 300 is configured to be able to form the pyrolysis chamber 112 in a vacuum atmosphere of 500mmhq or less. The air from the vacuum line 310 may be discharged to the atmosphere through the filter 330 in a state where harmful substances are removed.

Solid waste supply unit 400 is disposed in the left and right directions, the transfer drum 410, the outlet end is connected to the solid waste inlet 114 of the main body 110 by pyrolysis, the inlet provided on the opposite side of the outlet end of the transfer drum 410 Inlet hopper 420 connected to, the closing valve 450 which is a sealing mechanism for opening and closing the outlet of the inlet hopper 420, the transfer disposed in the longitudinal direction of the transfer drum 410 in the empty space inside the transfer drum 410 The screw 430, the screw drive mechanism 440 for rotating the transfer screw 430, is provided on the inner circumference of the transfer drum 410 toward the pyrolysis chamber 112 along the transfer drum 410 by the action of the transfer screw 430 At least one cutter 460 for cutting the solid waste to be transported.

When the solid waste is supplied to the transfer drum 410 through the feeding hopper 420, and the rotating screw 430 is rotated by the screw drive mechanism 440, the solid waste supplied to the transfer drum 410 is transferred. By the feeding action of the screw 430 is transferred toward the pyrolysis chamber 112 along the transfer drum 410. In this process, since the solid waste is cut into a relatively small size while being in contact with the cutter 460, the first embodiment of the present invention can process the solid waste without pretreatment operations that require cutting the solid waste in advance.

The stirring unit 600, the rotary shaft 610 disposed in the vertical direction in the pyrolysis chamber 112, the shaft drive mechanism 620 for rotating the rotary shaft 610, at least one or more stirring blades mounted on the rotary shaft 610 ( 630a, 630b).

The liquid waste supply unit 500 includes a main flow path 530 and a main flow path 530 in which the liquid waste supply from the liquid waste supply source flows in the inner region of the rotation shaft 610 in a lengthwise direction of the rotation shaft 610. It is connected to the main flow passage 530 to the rotation shaft 610 at a height spaced from the bottom to a predetermined height upward, and has a plurality of injection holes 542 (nozzle may be applied) to the liquid waste from the main flow passage 530 It includes a single or a plurality of liquid waste injection pipe 540 to be injected into the pyrolysis chamber (112). According to the liquid waste injection pipe 540, the first embodiment of the present invention can be thermally decomposed more efficiently by the liquid waste is supplied to the pyrolysis chamber 112 in the form of the liquid waste is sprayed.

The liquid waste supply unit 500 includes a liquid waste transfer line 510 and a liquid feed pump 520 mounted on the liquid waste transfer line 510 for transferring the liquid waste from the liquid waste supply source to the main flow path 530. It further includes. The liquid waste transfer line 510 has a structure in which a portion is wound around the stack 218 a plurality of times, so that the liquid waste transported along the liquid waste transfer line 510 may be discharged through the stack 218. It is supplied to the pyrolysis chamber 112 via the main flow path 530 and the liquid waste injection pipe 540 while being preheated by a heat exchange operation.

The liquid waste supply unit 500 may include a ring-shaped valve seat 550 provided at an upper side thereof and a valve seat in the main flow passage 530 as compared with a point where the liquid waste injection pipe 540 is connected to the main flow passage 530. It is disposed below the 550 and includes a floating valve body 560 is in close contact with the valve seat 550 or released in close contact with the lifting of the liquid waste in accordance with the height of the liquid waste introduced into the main flow path (530).

When the height (level) of the liquid waste introduced into the main flow path 530 is increased, the floating valve body 560 is also raised due to the buoyancy of the liquid waste. When the rising floating valve body 560 is in close contact with the valve seat 550, the main flow path 530 is closed by the closing action of the floating valve body 560 and the valve seat 550 which are in close contact with each other, and thus the main flow path 530. Liquid waste from) is stopped (blocked) inflow into the liquid waste injection pipe 540. At this time, the liquid waste remaining in the main flow path 530 is heated by the high heat of the pyrolysis chamber 112.

Then, when the liquid waste height (flow level) is lowered as the liquid waste is injected from the liquid waste injection pipe 540, the floating valve body 560 is also lowered and the close contact between the floating valve body 560 and the valve seat 550 is achieved. Is released. At this time, the main flow path 530 is opened, and the liquid waste from the main flow path 530 flows into the liquid waste injection pipe 540.

According to such a valve seat 550 and the floating valve body 560, the first embodiment of the present invention can maintain a constant supply amount of liquid waste.

A pyrolysis apparatus according to a second embodiment of the present invention is shown in FIG. As shown in FIG. 4, in the pyrolysis apparatus according to the second embodiment of the present invention, compared with the first embodiment, the other components and effects are the same as those generated in the pyrolysis chamber 112. The only difference is that heavy oil and light oil components are recovered from the gas, and a configuration for using the gas as a fuel of the gas burner 214 is added.

An exhaust pipe 710 for discharging the gas generated in the pyrolysis chamber 112 is connected to the upper portion of the main body 110 by pyrolysis. The exhaust pipe 710 is connected with a heavy oil collector 722a and a diesel oil collector 722b for respectively recovering heavy oil and light oil components from the gas flowing into the exhaust pipe 710. The heavy oil collector 722a is disposed below the diesel fuel collector 722b.

Reference numerals

724a and 724b denote heavy oil conveying lines and diesel oil conveying lines for transporting the recovered heavy oil component and the diesel fuel component to a desired place, respectively. For reference, pumps 726a and 726b for pumping may be mounted on the heavy oil feed line 724a and the diesel feed line 724b, respectively, and a cooler 728 may be mounted.

A gas supply line (gas supply pipe 732) for supplying the discharged gas to the gas burner 214 is connected to the outlet of the exhaust pipe 710, and a gas cooler 734 is mounted on the gas supply line 732. Reference numeral 740 denotes a rush prevention plate, and the rush prevention plate 740 may prevent the liquid waste in the form of droplets or the solid waste in the form of agglomeration from the pyrolysis chamber 112 by the double blocking structure. It is composed.

Claims

A pyrolysis furnace for providing a pyrolysis chamber; A heating furnace surrounding at least a portion of the pyrolysis furnace such that a heating chamber for heating the pyrolysis chamber is formed between the pyrolysis furnace and the pyrolysis furnace; A first supply unit for supplying solid waste to the pyrolysis chamber and a second supply unit for supplying liquid waste; A stirring unit for agitating the waste supplied to the pyrolysis chamber,

The stirring unit,

A rotating shaft disposed in the pyrolysis chamber in a vertical direction;

At least one stirring blade mounted on the rotating shaft,

The second supply unit,

A main flow path provided in an inner region of the rotary shaft in a longitudinal direction of the rotary shaft and into which liquid waste from a liquid waste supply source flows;

At least one liquid waste injection pipe connected to the rotating shaft at a height spaced from the lower end of the main flow path so as to communicate with the main flow path, and having a plurality of injection holes to inject liquid waste from the main flow path into the pyrolysis chamber; ;

A ring-shaped valve seat provided above the branch point to which the liquid waste injection pipe is connected in the main flow path;

And a floating valve body disposed below the valve seat in the main flow path and floating or in close contact with the valve seat while being lifted by buoyancy of the liquid waste according to the height of the liquid waste introduced into the main flow path.

Pyrolysis device.
The method according to claim 1,

The stack is provided at the top of the furnace,

The second supply unit,

Further comprising a liquid waste transfer line for transferring the liquid waste from the liquid waste supply source to the main flow path, a portion of which is wound around the stack a plurality of times.

Pyrolysis device.
The method according to claim 1,

The stack is provided at the top of the furnace,

A heating burner is provided below the heating furnace,

The heating chamber is equipped with a guide plate for inducing the air heated by the heating burner to move while drawing a spiral trajectory toward the stack,

Pyrolysis device.
The method according to claim 3,

An anti-fire plate is disposed between the pyrolysis furnace and the heating burner to prevent the pyrolysis furnace from being directly heated by the heating burner.

Pyrolysis device.
The method according to claim 1,

The first supply unit,

A transfer drum connected to an upper portion of the pyrolysis furnace and disposed in a left and right direction;

An input hopper connected to the transfer drum;

A sealing mechanism for opening and closing the outlet of the input hopper;

A transfer screw disposed in an inner space of the transfer drum in a longitudinal direction of the transfer drum;

A screw drive mechanism for rotating the feed screw;

At least one cutter provided on the inner periphery of the transfer drum for cutting the solid waste transported toward the pyrolysis chamber along the transfer drum,

Pyrolysis device.
The method according to claim 1,

The heating furnace is provided with a gas burner,

The exhaust pipe is connected to the upper portion of the pyrolysis furnace,

The exhaust pipe is connected with a heavy oil collector and a diesel oil collector for recovering heavy oil and light oil from the gas flowing into the exhaust pipe, respectively.

The gas supply pipe for supplying the gas discharged to the gas burner is connected to the outlet of the exhaust pipe,

Pyrolysis device.