KR20220157072A - Continuous waste treatment system - Google Patents

Abstract

The present invention relates to a continuous waste treatment system including: a pump for continuously supplying waste; a fluidized bed pyrolysis device in which a fluidized gas is supplied and pyrolysis of particle-type waste is performed; and a combustion device for combustion of exhaust gas discharged from the fluidized bed pyrolysis device, wherein the fluidized bed pyrolysis device and the combustion device are connected by a transfer pipe for continuously moving the exhaust gas from the fluidized bed pyrolysis device to the combustion device.

Description

Continuous waste treatment system {CONTINUOUS WASTE TREATMENT SYSTEM}

The present invention relates to a continuous waste disposal system. Specifically, the present invention relates to a system capable of continuously treating waste.

In general, various domestic wastes generated at home and industrial wastes generated at industrial sites are partially recycled through separate collection, etc. is being processed in a way that

1 is a view showing a conventional wastewater treatment process. In a conventional wastewater treatment process, wastewater is sludged through an aeration tank and a sludge settling unit, and then the sludge containing harmful substances is landfilled or incinerated.

However, industrial waste and wastewater generate harmful chlorine compounds such as dioxins as unwanted by-products in various product production processes such as chemical processes, pulp processes, and incineration processes. Dioxin contained in waste and sludge is released into soil, water and air.

In addition, the high-temperature exhaust gas generated in the process of incinerating the waste is gradually cooled in the air, causing a problem in that a small amount of decomposed dioxin is regenerated.

Korean Patent Registration No. 10-1753204 Korean Patent Registration No. 10-2198080

Focusing on the problems of the prior art described above, the present invention is to provide a continuous waste treatment system for decomposing and treating harmful compounds contained in waste and preventing them from being regenerated in the air.

An exemplary embodiment of the present invention is a pump for continuously supplying waste; a fluidized bed pyrolysis device in which a fluidized gas is supplied and pyrolysis of the waste in the form of particles is performed; and a combustion device generating a purge gas by burning exhaust gas discharged from the fluidized bed pyrolysis device, wherein the fluidized bed pyrolysis device and the combustion device continuously move the purge gas from the fluidized bed pyrolysis device to the combustion device. A continuous waste disposal system connected to a transfer pipe is provided.

In another embodiment of the present invention, the fluidized bed pyrolysis device includes a waste inlet for receiving the waste from the pump, and the waste inlet includes a filter for selecting waste particles having a uniform particle size. processing system is provided.

In the case of using the continuous waste treatment system according to the embodiment of the present invention, it is possible to decompose harmful compounds contained in waste in the form of sludge.

In addition, since a large amount of waste can be efficiently treated by continuously treating waste, the treatment efficiency is increased.

In addition, harmful substances included in the final exhaust gas can be reduced by completely decomposing and removing harmful compounds through two thermal decomposition and cooling.

1 is a conceptual diagram illustrating a conventional waste treatment process.
2 is a configuration diagram showing a continuous type waste treatment system according to an exemplary embodiment of the present invention.
3 is a configuration diagram showing a continuous waste disposal system according to another embodiment of the present invention.
4 is a perspective view showing a fluidized bed pyrolysis device according to an exemplary embodiment of the present invention.
Figure 5 (a) is a cross-sectional view showing a feeder according to one embodiment of the present invention, Figure 5 (b) is a cross-sectional view showing a feeder according to another embodiment of the present invention, Figure 5 (c) is a cross-sectional view of the present invention It is a cross-sectional view showing a feeder according to another embodiment of.

Hereinafter, the present invention will be described in detail with reference to the drawings. However, the drawings are for illustrating the present invention, and the scope of the present invention is not limited by the drawings.

2 is a configuration diagram showing a continuous waste disposal system 100 according to an exemplary embodiment of the present invention.

A continuous waste treatment system 100 according to an exemplary embodiment of the present invention includes a pump 10, a fluidized bed pyrolysis device 20 and a combustion device 30.

The pump 10 is configured to continuously supply waste from the waste storage unit in which waste is stored to the fluidized bed pyrolysis device 20 . The pump 10 is located in a flow passage connecting the waste storage unit and the fluidized bed pyrolysis device 20, and can control whether or not the waste is supplied in the passage, and the speed and amount of the waste.

The pump 10 may be divided into a pump using centrifugal force, a pump using buoyancy of air, and a pump using rotation of a helical shaft.

Pumps in the form of rotary blades using centrifugal force include non-closed centrifugal pumps, bladeless centrifugal pumps, and suction screw centrifugal pumps, air lift pumps using air buoyancy, and single-screw pumps with a spiral rotation shaft ( mono pump) may be included.

In one embodiment, when the pump 10 is a single-screw pump, impeller blades are spirally provided outside the rotating shaft, and waste is introduced between the impeller blades and rotated so that the impeller blades are folded while the fluidized bed pyrolysis device in the waste storage unit. The waste can be pushed in the direction of (20) and supplied.

The pump 10 may control the speed and amount of wastes supplied to the fluidized bed pyrolysis device 20 by adjusting the rotational speed.

The pump 10 is provided with a waste supply unit through which waste is supplied from the waste storage unit and a waste discharge unit through which waste is discharged, and the waste discharge unit is connected to the waste inlet 22 of the fluidized bed pyrolysis device 20 to be described later and a sealed passage. can

In addition, the waste storage unit may supply waste in the form of sediment or particles to the fluidized bed pyrolysis device 20 by means of the pump 10. When the pump 10 is supplied with waste in the form of sediment, the waste in the form of sediment is present in the passage. A crushing unit for crushing may be further included.

4 is a perspective view showing a fluidized bed pyrolysis device 20 according to an exemplary embodiment of the present invention.

In the fluidized bed pyrolysis device 20, a fluidized gas is supplied to the inside and pyrolysis of particulate waste is performed, and the fluidized gas is supplied from a lower portion of the fluidized bed pyrolysis device 20.

The waste is decomposed into exhaust gas and pyrolysis sludge while floating inside the fluidized bed pyrolysis device 20 . Here, pyrolysis sludge means sludge in liquid and solid form. The waste supplied to the fluidized bed pyrolysis device 20 contains harmful chlorine compounds, and the residual harmful chlorine compounds that have not been pyrolyzed are included in the exhaust gas and transported to the combustion device 30 . In addition, the pyrolysis sludge may remain in the fluidized bed pyrolysis device 20 or be separated and discharged while moving to the combustion device 20 together with the exhaust gas.

The fluidized bed pyrolysis device 20 includes a waste inlet 22 into which waste in the form of particles is introduced, a fluidized gas inlet 23 into which a fluidized gas for fluidizing waste particles is supplied, and exhaust gas and pyrolysis sludge generated by pyrolysis. It includes a discharge unit 24 for discharging one or more and a sieve 25 for preventing waste particles and pyrolysis sludge from entering the fluidizing gas inlet 23.

In order to supply only the exhaust gas to the combustion device 30, the fluidized bed pyrolysis device 20 is provided with a classification net on the upper side of the inside to classify the exhaust gas and the pyrolysis sludge.

The fluidized bed pyrolysis device 20 may be provided with any one of a conveyor belt, a moving screw, a feeder, and a pneumatic conveying device at the front of the waste inlet 22 to continuously receive waste.

Figure 5 (a) is a cross-sectional view showing a feeder 40 according to one embodiment of the present invention, Figure 5 (b) is a cross-sectional view showing a feeder 40 'according to another embodiment of the present invention, 5(c) is a cross-sectional view showing a feeder 40" according to another embodiment of the present invention.

In one embodiment, the feeder 40 includes a hopper 41, a waste input unit 42 and a supply control unit (not shown).

The hopper 41 is configured to receive waste discharged from the waste pump 10 and receives waste from the waste pump 10 by gravity. Accordingly, the hopper 41 may be located under the waste pump 10 or the waste discharge unit of the pretreatment device 50 to be described later. Here, the waste discharge unit refers to a configuration in which waste is discharged from the waste pump 10 or the pretreatment device 50 .

The hopper 41 may include a lid that can be opened and closed at the top, and an inert gas may be supplied therein. That is, the hopper 41 may maintain an atmosphere inside the pyrolysis device 20 by opening and closing the lid and using nitrogen gas regardless of whether the pyrolysis device 20 is operating.

The waste input unit 42 is a component that continuously transfers waste to one of the pyrolysis device 20 and a supply control unit described below. The waste input unit 42 is provided in the form of a pipe, and a moving module for moving a certain amount of waste to the pyrolysis device 20 or the supply control unit may be included in the tube. The moving module may include any one of a conveyor belt, a moving screw, and a powder conveying device (Pneumatic Conveying).

The waste input unit 42 may further include a main body (not shown) for storing waste. The main body may store waste supplied from the waste storage unit or the waste pump 10 regardless of whether the pyrolysis device 20 is operating.

Therefore, even if the gate 44 included in the supply controller described below is closed by the operation of the pyrolysis device 20, the waste supplied from the waste storage unit or the waste pump 10 may be continuously supplied without interruption.

The supply control unit is configured to control the supply speed and amount of waste supplied to the hopper 41, and is located below the hopper 41 or the waste input unit 42. And, the supply control unit includes a gate 43 that is opened and closed by the weight of the waste to control whether the waste is supplied or not and a valve 44 that controls the supply speed of the waste.

Referring to FIG. 5 (a), the supply control unit may be located between the hopper 41 and the waste input unit 42, and referring to FIGS. 5 (b) and 5 (c), the supply control unit inputs waste. It may be located at the bottom of section 42.

In the feeder 40 of FIG. 5 (a), the waste input unit 42 is located on the side of the fluidized bed pyrolysis device 20, and the waste is moved in the horizontal direction (fluidized bed pyrolysis device 20) by the moving module of the waste input unit 42. ) in the direction perpendicular to the axial direction).

In the feeder 40' of FIG. 5 (b), the valve 44 of the supply control unit is located at the top of the fluidized bed pyrolysis device 20, so that waste can be supplied to the fluidized bed pyrolysis device 20 by the middle man.

The feeder 40 "of FIG. 5 (c) is a case where the supply control unit is located below the waste input unit 42 and the feeder 40 "is located on the side of the fluidized bed pyrolysis device 20, the waste moving unit ( not shown) may be further included. The waste moving unit is configured to horizontally move the waste discharged from the supply control unit.

The waste moving unit is located below the valve 44 and moves a certain amount of waste to the fluidized bed pyrolysis device 20 by a carrier gas. Thus, the waste moving unit may include a gas supply unit to which a carrier gas is supplied to one side. The carrier gas may be supplied in a direction opposite to the supply pipe 23 toward the supply pipe 23 .

The gate 43 may include a butterfly valve, a slide gate valve, or the like, but is not particularly limited as long as it can be opened and closed according to the weight of the waste to adjust the amount of waste supply.

Also, a plurality of gates 43 may be included. In one embodiment, the gate 43 may be located at any one or more of the upper and lower portions of the valve 44.

The valve 44 may be provided in a structure in which a plurality of wings are spaced apart from each other at regular intervals on the outer surface of the rotatable shaft. The valve 44 may store waste in the space between the plurality of blades and adjust the speed of supplying the waste to the waste input unit 42 or the pyrolysis device 20 by adjusting the rotation speed.

In addition, the valve 44 may continuously supply waste to the pyrolysis device 20 even when the lid of the hopper 41 and the gate 43 are closed when the pyrolysis device 20 operates.

The feeder (40, 40', 40") according to the present invention is configured to control the presence or absence of waste supply, and includes a hopper 41, a lid and a gate 43, and continuously feeds waste to the pyrolysis device 20 by using the hopper 41. That is, regardless of the operation of the pyrolysis device 20, the feeders 40, 40', 40" according to the present invention close the lid or gate 43 of the hopper 41 to feed the feeders 40, 40' , 40″) after purging the inside of an oxygen-free or low-oxygen atmosphere, and then supplying the waste to the thermal decomposition device 20, the waste may be continuously supplied to the heat treatment device 20.

Feeders (40, 40', 40 ") according to an embodiment may further include a crushing unit for pulverizing the waste when receiving sediment-type waste from the pump 10.

The fluidized bed pyrolysis device 20 is configured to pyrolyze waste by forming an inside of the pyrolysis temperature atmosphere. The fluidized bed pyrolysis device 20 may form an inside of the fluidized bed pyrolysis device 20 into a pyrolysis temperature atmosphere by heating the flowing gas, or may form the inside of the fluidized bed pyrolysis device 20 into a pyrolysis temperature atmosphere by applying heat from the outside.

Therefore, the fluidized bed pyrolysis device 20 may further include a fluidizing gas heating unit 21 for heating the fluidizing gas before the fluidizing gas is supplied, or a heater (not shown) capable of increasing the internal temperature may be provided on the outer circumferential surface. can

That is, the fluidized bed pyrolysis device 20 has an effect of increasing the thermal decomposition efficiency of the sludge by increasing the contact area between the high-temperature fluidized gas or the internal air heated by the heater and the sludge by fluidizing the particulate waste.

The fluidized bed pyrolysis device 20 is characterized in that the inside is maintained in an oxygen-free or low-oxygen atmosphere.

When the internal atmosphere of the fluidized bed pyrolysis device 20 is a low-oxygen or anoxic atmosphere, at a temperature of 200 ° C to 600 ° C and a low-oxygen or anoxic condition, the dechlorination reaction in which the C-Cl bond of the harmful chlorine compound in the sludge is broken, and the harmful chlorine Partial and complete degradation of the compound can occur smoothly. On the other hand, under conditions where oxygen is present in an amount exceeding 3 vol%, oxygen reacts with organic matter and harmful chlorine compounds in the sludge to form another harmful chlorine compound or the decomposed harmful chlorine compound may be re-synthesized.

The low-oxygen or oxygen-free atmosphere is not limited to a specific gas, and may be, for example, a nitrogen atmosphere, an inert atmosphere, or a vacuum atmosphere. The inert atmosphere may be an argon atmosphere or a helium atmosphere, but is not limited thereto. Among them, when a nitrogen atmosphere is applied to a low-oxygen or non-oxygen atmosphere, it is economical because relatively inexpensive nitrogen can be used, and there are advantages in that the atmosphere is easy to create. A hypoxic or anoxic atmosphere can be controlled by introducing a carrier gas into the pyrolysis unit used in the pyrolysis step.

Therefore, the fluidized bed pyrolysis device 20 according to the present invention further includes a carrier gas supply unit (not shown) for supplying carrier gas, or through either the waste inlet 22 or the fluidized gas inlet 23. A carrier gas may be supplied.

In the fluidized bed pyrolysis device 20, a filter unit may be included in the waste inlet unit 22. The filter unit selects waste particles having a uniform particle size from among waste particles in the form of particles supplied to the fluidized bed pyrolysis device 20 . Here, the uniform particle size means a size equal to or less than the standard particle size, and the standard particle size or less is preferably 3 mm or less. Particle size may refer to the longest length of a waste particle based on the cross section of the waste particle.

And, when the particle size of the waste particles exceeds 3 mm, the waste particles may be re-supplied to the fluidized bed pyrolysis device 20 through a device that additionally pulverizes the waste particles.

And, if the particle size of the waste particles exceeds 3 mm, the heat supplied to the fluidized bed pyrolysis device 20 does not reach the inside of the waste particles, causing a problem in that the pyrolysis efficiency of the waste is reduced.

However, the filter unit is not particularly limited as long as it is a position where waste particles can be separated before the sludge particles are introduced into the fluidized bed pyrolysis device 20.

The continuous waste disposal system 100 according to the present invention may further include a particle sorting unit (not shown). That is, in the continuous waste treatment system 100 according to the present invention, a filter unit is provided in the fluidized bed pyrolysis device 20, a particle sorting unit is provided in front of the fluidized bed pyrolysis device 20, or both a filter unit and a particle sorting unit are provided. It can be.

The particle selection unit has the same purpose as the filter unit in that it selects waste particles having a size equal to or greater than the standard particle size, but has a different shape.

The particle sorting unit stores the waste before supplying the waste moved by the pump 10 to the fluidized bed pyrolysis device 20, selects waste particles having a particle size of 3 mm or less, and supplies them to the fluidized bed pyrolysis device 20.

In addition, the particle sorting unit may further include a waste crushing unit in an area where waste particles having a particle size of greater than 3 mm are separated, or may further include a device for crushing waste particles outside the particle sorting unit.

Therefore, the continuous waste disposal system 100 may pulverize the waste having a particle size of more than 3 mm inside the particle sorting unit and re-supply it to the particle sorting unit, or discharge it to an external crushing device and then re-supply it to the particle sorting unit.

A separator may be provided inside the particle sorting unit to prevent mixing of waste particles having a particle size of 3 mm or less and waste particles exceeding 3 mm. Therefore, the particle sorting unit may be divided into a first area for storing waste particles of 3 mm or less and a second area for storing waste particles exceeding 3 mm by the separation membrane.

In one example, the particle sorting unit is located on the main body for sorting and storing waste particles, a separation membrane for separating the inner region of the main body provided in the main body, and a separation membrane to separate sludge particles having a particle size of 3 mm or less and waste particles exceeding 3 mm It may include a sorting unit that selects and supplies it to the area divided by the separation membrane.

However, the shape of the particle sorting unit is not limited as long as it can sort waste particles.

The fluidized bed pyrolysis device 20 may include a temperature sensor (not shown) at any one or more positions of the inner and outer surfaces. The temperature sensor measures the temperature of the fluidized bed pyrolysis device 20 and automatically adjusts the temperature of the fluidized gas heating unit or heater when the internal or external temperature of the fluidized bed pyrolysis device 20 is out of a set temperature range.

The combustion device 30 burns the exhaust gas discharged from the fluidized bed pyrolysis device 20, and decomposes the exhaust gas into low-molecular substances by burning the exhaust gas at a high temperature.

In the fluidized bed pyrolysis device 20, harmful chlorine compounds in waste are decomposed to form gas (exhaust gas), and some of the gas components formed may still have harmful properties. Therefore, it is necessary to additionally burn and remove harmful chlorine compounds in a gaseous state.

The combustion device 30 according to the present invention burns the exhaust gas to convert harmful chlorine compounds remaining in the exhaust gas into harmless low-molecular compounds such as carbon dioxide and water, which are difficult to synthesize.

The combustion device 30 includes a combustion burner located on one side of the inside, an exhaust gas supply port connected to the outlet 24 of the fluidized bed pyrolysis device 20 to receive exhaust gas, and a purification gas for discharging the burned exhaust gas to the atmosphere. Include an outlet.

In the combustion device 30 , an exhaust gas supply unit and a purified air discharge port may be connected to a passage pipe to prevent mixing of supplied exhaust gas and purified gas purified after combustion. Here, the flow pipe may be formed in various shapes such as a straight line or a spiral, but is preferably formed in a spiral shape to increase the contact time and area with the combustion heat generated from the combustion burner.

The combustion device 30 may receive exhaust gas and pyrolysis sludge from the outlet 24 of the fluidized bed pyrolysis device 20 . At this time, the combustion device 30 is provided with a classification unit for classifying the pyrolysis sludge at the front end of the flow pipe, and can separate and discharge the pyrolysis sludge by gravity and the weight difference between the exhaust gas and the pyrolysis sludge.

And, the combustion device 30 may further include a combustion promoting gas supply port for supplying combustion promoting gas to the inside or the flow pipe.

In one embodiment, the continuous waste treatment system 100 according to the present invention includes the discharge unit 24 and combustion of the fluidized bed pyrolysis device 20 to supply combustion-promoting gas to the inside of the combustion device 30 or to the flow pipe. Combustion promoting gas may be supplied to a pipe connecting the exhaust gas supply port of the device 30 . Here, the combustion-promoting gas means that the content of oxygen is at least 5 vol% or more among the total gas content.

The continuous waste treatment system 100 according to the present invention includes the discharge unit 24 of the fluidized bed pyrolysis device 20 and the combustion device ( The exhaust gas supply port of 30) is connected to a transfer pipe (not shown).

And, since at least one of an aspirator and a blower is included in the transfer pipe, the exhaust gas can be continuously moved in one direction. Alternatively, the carrier gas may be supplied to the inside of the transfer pipe to move the exhaust gas. At this time, the carrier gas is supplied from the fluidized bed pyrolysis device 20 toward the combustion device 30.

A combustion promoting gas may be supplied to the inside of the transfer pipe. The combustion promoting gas supplied to the inside of the transfer pipe 31 may promote the movement of the exhaust gas and promote combustion of the exhaust gas within the flow pipe.

And, the transfer pipe may include a control valve for controlling the flow rate of the exhaust gas and the pyrolysis sludge.

3 is a configuration diagram showing a continuous waste disposal system 100' according to another embodiment of the present invention.

The continuous waste treatment system 100 'according to another embodiment includes a pretreatment device 50, a pump 10, a fluidized bed pyrolysis device 20, a first dust collector 60, a combustion device 30, a cooling device ( 70) and a scrubber 80.

Here, the pump 10, the fluidized bed pyrolysis device 20, and the combustion device 30 have the same configuration as the continuous waste treatment system 100 according to an embodiment of the present invention, and detailed descriptions thereof are omitted.

The pretreatment device 50 performs pretreatment operations such as dehydration, drying, and grinding before supplying the waste to the fluidized bed pyrolysis device 20, and includes one or more modules.

In one embodiment, the pre-processing device 50 may include a pre-processing module that rotates and is supplied with high-temperature gas therein. The temperature of the pretreatment module is increased by the high-temperature gas, and the waste is dried and moved by being rotated in contact with the waste. At this time, the wastes may collide with each other and be pulverized by rotating and moving along the pretreatment module.

The preprocessing module may be provided in the form of wings, disks, paddles, etc. provided on the outer circumferential surface of the rotating central axis, or may be provided in the form of a moving screw. A space is formed inside each component of the preprocessing module to receive high-temperature gas.

At this time, the process of drying the waste may increase the removal efficiency and energy efficiency of harmful chlorine compounds contained in the waste by reducing the moisture content of the waste and the particle size of the waste particles.

And, the pretreatment device 50 may include a filter in a discharge pipe through which the pretreatment waste is discharged.

The first dust collector 60 is located between the fluidized bed pyrolysis device 20 and the combustion device 30, receives exhaust gas and pyrolysis sludge from the fluidized bed pyrolysis device 20, and separates the exhaust gas and pyrolysis sludge.

The first dust collector 60 may include any one or more of a cyclone and a bag filter. Furthermore, the cyclone may include one having a bag filter therein.

However, the first dust collector 60 is not limited as long as it can separate exhaust gas and pyrolysis sludge.

In one embodiment, when the first dust collector 60 according to the present invention is a cyclone, the first dust collector 60 may separate exhaust gas and pyrolysis sludge using centrifugal force and inertial force.

And, the first dust collector 60 may be provided with a pyrolysis sludge supply port through which exhaust gas and pyrolysis sludge are supplied to the upper side of the outer circumferential surface. Therefore, the exhaust gas and pyrolysis sludge supplied from the upper side of the first dust collector 60 collide with the inner wall and rotate, and the swirling exhaust gas and pyrolysis sludge have centrifugal and inertial forces.

In the first dust collector 60, light exhaust gas is discharged upward, and pyrolysis sludge is heavy and discharged downward.

Therefore, the first dust collector 60 may have an exhaust gas discharge port through which exhaust gas is discharged at the upper side and a pyrolysis sludge discharge port through which pyrolysis sludge is discharged at the lower side.

The first dust collector 60 may further include a pyrolysis sludge storage unit 61 for storing pyrolysis sludge.

The pyrolysis sludge storage unit 61 is connected to the pyrolysis sludge discharge port to store the pyrolysis sludge and measure the concentration of harmful chlorine compounds in the pyrolysis sludge. When harmful chlorine compounds are detected in the pyrolysis sludge, the pyrolysis sludge storage unit 61 transfers the pyrolysis sludge to the fluidized bed pyrolysis device 20, the pretreatment device 50, and a flow path connecting the pretreatment device 50 and the fluidized bed pyrolysis device 20. Any one or more of them may be re-supplied.

Combustion promoting gas may be supplied to the first dust collector 60 to increase the combustion efficiency of the exhaust gas in the combustion device 30 . The location of the combustion-promoting gas supply unit for supplying the combustion-promoting gas is not limited as long as the direction in which the exhaust gas and pyrolysis sludge are turned inside the first dust collector 60 is not hindered.

In one embodiment, the combustion-promoting gas supply unit may be provided on the same line as the position where the exhaust gas inlet is provided in the longitudinal direction or in the circumferential direction of the main body of the first dust collector 60.

The continuous waste treatment system 100' according to the present invention may include a control valve for controlling the flow rate of exhaust gas and pyrolysis sludge between the flow path connecting the fluidized bed pyrolysis device 20 and the first dust collector 60.

The cooling device 70 rapidly cools the purge gas in which the exhaust gas is burned.

In one embodiment, the cooling device 70 may be provided in the form of a cooling tube wound around a container in which exhaust gas is stored. The cooling device 70 has a low internal temperature by means of a cooling pipe, and rapidly cools exhaust gas having a high temperature due to high-temperature combustion.

The cooling device 70 may include a plurality of containers having different temperatures.

In another embodiment, the cooling device 70 may be formed on an outer surface of a pipe through which exhaust gas is discharged from the combustion device 30 . By forming a cooling pipe on the outer surface of the pipe through which the exhaust gas is discharged, the exhaust gas can be rapidly cooled at the same time as the exhaust gas is discharged.

Cooling water or gas such as carbon dioxide or helium may be supplied to the inside of the cooling pipe.

The cooling device 70 according to the present invention is not particularly limited as long as it can rapidly cool the burnt exhaust gas.

The scrubber 80 filters the purified gas discharged from at least one of the combustion device 30 and the cooling device 70 and discharges the filtered gas into the atmosphere.

The scrubber 80 according to the present invention is a wet scrubber and may include an organic solvent scrubber and a base solution scrubber. At this time, one or more organic solvent scrubbers may be provided.

The scrubber 80 includes a measuring unit (not shown), and the measuring unit can measure the concentration of organic matter and harmful chlorine compounds in the waste liquid discharged after filtering.

The measuring unit can recover the waste liquid to the sludge storage unit when the concentrations of organic matter and harmful chlorine compounds in the waste liquid are measured above a certain standard.

The waste disposal systems 100 and 100' according to the present invention may further include a second dust collector (not shown).

The second dust collector includes a bag filter and is connected to the scrubber 80 to receive filtered purified gas and remove fine particles included in the gas.

The continuous waste disposal system 100, 100' according to the present invention includes a sensor (not shown) in all components, so that the entire process is automatically performed and monitored by data checked by the sensor.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

100, 100': continuous waste disposal system
10: pump
20: fluidized bed pyrolysis unit
21: moving gas heating unit
22: waste inlet
23: flowing gas inlet
24: discharge unit
25: strainer
30: combustion device
40, 40', 40": Feeder
41 Hopper
42: waste input unit
43: gate
44: valve
50: preprocessor
60: first dust collector
61: pyrolysis sludge storage unit
70: cooling device
80: scrubber

Claims (13)

A pump that continuously supplies waste;
a fluidized bed pyrolysis device in which a fluidized gas is supplied and pyrolysis of the waste in the form of particles is performed; and
A combustion device for burning exhaust gas discharged from the fluidized bed pyrolysis device,
The fluidized bed pyrolysis device and the combustion device are connected by a transfer pipe for continuously moving the exhaust gas from the fluidized bed pyrolysis device to the combustion device.
Continuous waste disposal system. According to claim 1,
The fluidized bed pyrolysis device includes a waste inlet into which the waste is introduced from the pump,
The waste inlet unit includes a filter unit for selecting a particle size of waste particles. According to claim 2,
The filter unit is a continuous waste treatment system for screening the waste particles having a particle size of 3 mm or less. According to claim 1,
The continuous waste treatment system further comprises a feeder for continuously moving the waste from the pump to the fluidized bed pyrolysis device. According to claim 4,
The feeder includes a hopper receiving waste discharged from the pump;
a waste input unit for continuously moving the waste into the fluidized bed pyrolysis device; and
And a supply control unit for adjusting the supply rate and amount of the waste,
The supply control unit is opened and closed by the weight of the waste to control whether or not the waste is supplied, and a valve to control the supply speed of the waste.
A continuous waste treatment system comprising a. According to claim 4,
The feeder further comprises a crushing unit for crushing the waste. According to claim 1,
The pump and the fluidized bed pyrolysis device are connected by a closed passage, and a crushing part for crushing the waste is included in the passage. According to claim 1,
The transfer pipe is a continuous waste disposal system comprising at least one of an aspirator and a blower. According to claim 1,
The conveying pipe is a continuous waste treatment system in which a carrier gas is supplied to convey the exhaust gas. According to claim 1,
The fluidized bed pyrolysis device further includes a fluidized gas heating unit for heating the fluidized gas, and thermally decomposes the waste by the heated fluidized gas. According to claim 1,
The fluidized bed pyrolysis device pyrolyzes the waste to produce exhaust gas and pyrolyzed sludge,
and a first dust collector configured to receive the exhaust gas and the sludge, separate the exhaust gas from the sludge, and supply the exhaust gas to the combustion device. According to claim 11,
Wherein the first dust collector includes at least one of a cyclone and a bag filter. According to claim 1,
The continuous waste treatment system further comprising a particle sorting unit for storing the waste before supplying the waste to the fluidized bed pyrolysis device, selecting sludge having a particle size of 3 mm or less, and supplying the sludge to the fluidized bed pyrolysis device.

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