KR101006224B1 - scrapped material thermal resolution system and method thereof - Google Patents

Abstract

The present invention discloses a pyrolysis system and pyrolysis method of flammable waste. The present invention has a main hopper into which flammable waste is introduced, and a pyrolysis body rotatably installed with a pyrolysis screw for transporting, melting, and vaporizing waste introduced through the main hopper; A pyrolysis chamber installed outside the pyrolyzer body to maintain a high temperature and low oxygen atmosphere to continuously pyrolyze the waste by indirect heating; It is provided on one side of the pyrolysis chamber, and includes a combustion chamber for supplying heat to the pyrolysis chamber by burning the non-condensing gas of the pyrolysis gas generated during the pyrolysis of the waste to use as a heat source for pyrolyzing the waste transported to the pyrolysis body. .

Flammable waste, drying means, drying chamber, drying screw, pyrolysis means, pyrolysis chamber, pyrolysis screw

Description

Scraped material thermal resolution system and method

The present invention relates to a pyrolysis system and a pyrolysis method of a flammable waste that can be pyrolyzed by indirectly heating the flammable waste in a high temperature, oxygen-free or low oxygen atmosphere to reduce pollutant emissions and improve yield and function.

In general, emissions of livestock waste from livestock farms and livestock farms containing a lot of moisture due to the increase of hardly degradable wastes due to industrial development and diversification of food culture are greatly increased. As wastes are dried and burned using a predetermined incineration apparatus, incineration is faced with processing costs and space limitations, so most of the wastes are landfilled or illegally disposed.

As a result, soil and groundwater are seriously contaminated due to leachate from food waste and industrial waste, and river water is seriously polluted due to unauthorized discharge of livestock wastewater.

A pyrolysis device was applied to treat such wastes. In the conventional pyrolysis device, a predetermined amount of waste is introduced into a pyrolysis chamber in a batch manner, and then the lid is closed to apply high temperature heat to the pyrolysis chamber. By heating to a predetermined temperature, a batch method is adopted in which the waste is pyrolyzed and converted into liquid, gas and solid materials.

However, the batch type pyrolysis method has a lot of difficulties in pyrolysis of wastes in which various substances are mixed, and especially when foreign substances (such as grass, soil, and nonferrous metals) are mixed, heat transfer is not performed smoothly. There is a limit to the production of refined oil from the waste has a problem that the value of use falls.

Accordingly, an object of the present invention is that, in case of pyrolyzing flammable waste by indirectly applying heat in a high temperature, anoxic or low oxygen atmosphere, the carbonized material discharged through the pyrolysis process can be continuously discharged continuously by a predetermined amount. The present invention provides a pyrolysis system and a pyrolysis method of flammable waste, which can greatly improve the yield and function of the pyrolysis device.

Another object of the present invention is to provide a pyrolysis system and a pyrolysis method of flammable waste, which can maximize the thermal contact area indirectly contacted during the pyrolysis of waste to improve the efficiency of expensive equipment by increasing the pyrolysis rate of the waste. It is.

Another object of the present invention is to utilize a non-condensed gas of the high-temperature pyrolysis gas as the heat source of the combustion chamber burner itself, so that no separate fuel supply is required, thereby maximizing energy efficiency and pyrolysis of flammable waste. To provide a way.

In order to solve the above problems, a pyrolysis body having a main hopper to which flammable waste is injected, rotatably installed pyrolysis screw for transporting, melting, and vaporizing waste introduced through the main hopper; A pyrolysis chamber installed outside the pyrolyzer body to continuously decompose waste by indirect heating by maintaining an atmosphere of high temperature and low oxygen; Is provided on one side of the pyrolysis chamber, comprising a combustion chamber for supplying heat to the pyrolysis chamber by burning the non-condensing gas of the pyrolysis gas generated during the pyrolysis of the waste to use as a heat source for pyrolyzing the waste transported to the pyrolysis body. A pyrolysis system of flammable waste is provided.

In addition, the main body hopper is a solid or liquid combustible waste is injected, the dryer body having a drying screw for removing the moisture contained in the waste; A drying chamber installed outside the dryer body to apply heat to the waste by indirect heating; A pyrolyzer body positioned below the dryer body and having a pyrolysis screw for transferring, melting and vaporizing waste provided from the dryer body; A pyrolysis chamber installed on the outside of the pyrolyzer body so as to communicate with the drying chamber so as to maintain a high temperature and low oxygen atmosphere to continuously pyrolyze the waste by indirect heating; Is provided on one side of the pyrolysis chamber, comprising a combustion chamber for supplying heat to the pyrolysis chamber by burning the non-condensing gas of the pyrolysis gas generated during the pyrolysis of the waste to use as a heat source for pyrolyzing the waste transported to the pyrolysis body. A pyrolysis system of flammable waste is provided.

In addition, the waste supply step of supplying the combustible waste is supplied to the dryer through the main hopper crushed and screened; A drying step of removing moisture by indirect heating while maintaining a high temperature and low oxygen dry chamber atmosphere while transferring the waste introduced into the dryer by a drying screw; Pyrolysis method of combustible wastes comprising a pyrolysis step of receiving the dried wastes, transferring them, melting and vaporizing them by pyrolysis screw, and continuously pyrolyzing the wastes by indirect heating by maintaining a high temperature and low oxygen pyrolysis chamber atmosphere. Is provided.

The pyrolysis system and pyrolysis method of the combustible waste according to the present invention configured as described above have the following effects.

First, it maximizes the thermal contact area during the pyrolysis of waste, thereby significantly improving the workability of the pyrolysis system by increasing the speed of pyrolysis of waste, and drastically reducing labor costs by automating the process of transferring, drying and pyrolyzing waste.

Second, not only does the high temperature pyrolysis gas be used as a heat source of the combustion chamber burner, but also it uses the sedimentary condensation of the pyrolysis gas to generate refined oil and use it as an initial fuel for operating the pyrolysis system. Can be saved.

Third, in the case of pyrolyzing solid or liquid flammable wastes by indirectly applying heat in a high temperature, anoxic or low oxygen atmosphere, the carbonized material discharged during pyrolysis can be continuously discharged by continuously inputting a predetermined amount of wastes. Significantly improved yields and functions make them competitive in the industry.

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

1 shows a pyrolysis system according to an embodiment of the present invention.

According to this, the pyrolysis system of the present embodiment is a drying means 100 for drying the moisture contained in the pulverized waste, pyrolysis means 200 for heating and thermally decomposing the dried waste, and automatic metering for quantifying waste introduced into the pyrolysis means. Means (300), automatic dosing means (400) for introducing the quantified waste into the pyrolysis means, gas reforming means (500) for removing chlorine from the pyrolysis gas generated during the pyrolysis of the waste, refined gas is produced using the reformed gas And carbonized material discharge means 600 for continuously discharging the carbonized material (char) discharged after pyrolysis from the refined oil generating means 700 and the pyrolysis means 200.

The pyrolysis principle used in the pyrolysis system of the present embodiment configured as described above is that if a flammable waste is indirectly heated in an oxygen-free or low-oxygen atmosphere, a pyrolysis space is formed in a reducing atmosphere, and the waste is decomposed and evaporated into a gas or a liquid. It will remain char.

That is, it can be seen that waste (meaning a flammable polymer compound) + heat = gas (non-condensing gas) + liquid (refined oil) + solid (char).

As shown in Figure 1 and 2, the drying means 100 is to thermally decompose the input combustible waste continuously and to receive the remaining heat from the pyrolysis means 200 to perform the drying, and to dry the dryer body 110 of a predetermined diameter Have Inside the dryer body 110, a pair of rotatable drying screws 120 are horizontally installed to dry the moisture contained in the waste, and one side of the drying screw 120 is connected to the driving motor 130. To provide driving force.

Dryer body 110 may be divided into multiple stages, in this embodiment is divided into three stages. That is, the first body 111, the second body 112, and the third body 113 are classified according to the progress of the waste supplied from the main hopper 150, which will be described later, each of the body has a stepped inner diameter A step is formed to enlarge.

As shown in FIG. 3A, the first body 111 has a space at an upper portion of the screw blade 121 so that the combustible waste supplied from the main hopper 150 can be easily transported into the drying means 100. It is made of a streamlined structure formed.

As shown in FIG. 3B, the second body 112 extends to the lower side and the left and right sides of the streamlined structure so that the second body 112 is changed into a circular shape, and the size of the screw blade 121 is also increased. The heating efficiency is maximized and the drying efficiency is maximized by preheating and providing sufficient heat transfer area until moisture evaporates.

The third body 113 is a section in which water evaporates in earnest, and as shown in FIG. 3C, a space is formed in an upper portion of the screw blade 121 and has a streamlined structure again in a circle of the second body 112. As a result, the evaporated water is naturally discharged. At this time, the end of the screw blade 121 of the third body can be connected to the lift 122 is connected to scatter the waste and scattered waste to facilitate the heat transfer to improve the drying speed.

In addition, a spiral heat guide 114 having a diameter corresponding to the inner diameter of the drying chamber 140 is installed on the outer circumferential surface of the third body 113. That is, the heat source is spirally discharged along the heat guide 114 so that the heat source stays in the drying chamber 140 for a sufficient time in the process of discharging the heat source after heating the pyrolyzer body 210 which will be described later.

One side of the first body 111 of the dryer body 110 is installed the main hopper 150 is a waste containing water, the amount of flammable waste is injected into the upper and lower portions of the main hopper 150. Waste detection sensors 151 and 152 are attached to the main hopper 150 so that they can be stored at regular intervals.

The waste detection sensors 151 and 152 automatically adjust the feeding amount of the input conveyor (not shown) of the combustible waste so that the combustible waste does not always fall below the set value (below the lower waste detection sensor). Accordingly, the heat loss is minimized to the outside of the drying means 100, the amount of air introduced into the drying means 100 is minimized, and the reverse flow of the air is prevented.

On the other hand, the drying chamber 140 of the hollow body made of a non-combustible material is provided on the outside of the dryer body (110). The drying process is an endothermic reaction by indirect heat, it is preferable to control the amount of oxygen in the drying chamber 140 to lower the risk of fire. That is, the drying heat source of the drying chamber 140 is supplied with a high temperature heat source of 500 ° C or more discharged from the pyrolysis chamber 240 to be described later, and the drying chamber 140 is positioned to communicate with the upper side of the pyrolysis chamber 240. Drying is performed by natural heat flow due to convection.

In this embodiment, the temperature for pyrolyzing the combustible waste is made between 350 to 500 ℃, this temperature is the internal temperature of the pyrolyzer body 210 and the heating temperature of the heat source used for external heating is 800 to 950 ℃. As a result, the temperature of the waste heat when pyrolyzing the flammable waste and throwing it outside is 500 ° C or higher. The thermal decomposition of the waste heat, which is pyrolyzed and discarded, does not pyrolyze more than drying in the drying means 100 in the range of the temperature at which pyrolysis is not achieved. Therefore, the waste heat discarded after pyrolysis is suitable as a heat source for drying, so that drying is performed with this heat source.

The drying means 100 is located on the upper side of the pyrolysis means 200 to reduce the amount of heat and heat to increase the pyrolysis temperature for heating the waste introduced into the pyrolysis means 200 in the state of evaporation of moisture in a small area It is configured to handle a large amount of waste.

The evaporated water is generated as gas for combustion gas of 800 ° C. or higher after passing through the cooling device and the compression device through the discharge port 141 formed on the upper side of the third body 113. It is introduced into the combustion chamber of the pyrolysis means 200 and recycled as a pyrolysis heat source.

As shown in Figures 1 and 4, the pyrolysis means 200 has a pyrolyzer body 210 to maintain the atmosphere of the high temperature and low oxygen state to continuously pyrolyze the waste by indirect heating. Inside the pyrolyzer body 210, a pyrolysis screw 220 for transferring and pyrolyzing waste discharged through the automatic injector 400 is rotatably installed by the driving motor 230.

Outside the pyrolyzer body 210 is provided a pyrolysis chamber 240 made of a heat insulating material to continuously decompose waste by indirect heating by maintaining an atmosphere of high temperature (350 ~ 500 ℃) and low oxygen.

Meanwhile, C ₃ H ₈ , C ₅ H ₁₂ (propane gas, butane gas) is mainly used as a light gas having less carbon ring condensation among pyrolysis gases generated during pyrolysis of wastes. In the lower side, a combustion chamber 250 for supplying high temperature heat to the pyrolysis chamber 240 is provided to use the waste transported by burning it as a heat source for pyrolysis, and the burner 251 is provided in the combustion chamber 250.

Like the dryer body 110, the pyrolyzer body 210 is divided into a first body 211, a second body 212, and a third body 213 according to the order of the waste, and each body is stepwise. Steps are formed so that the inner diameter is enlarged, and a pyrolysis process is performed while going through a three-step process.

The first body 211 has a streamlined shape, and spaced apart from the screw blade 221 of the pyrolysis screw 220 is formed in the upper portion is a space for the transfer of bulky waste to stably inject waste In this case, the spacing between the screw blades 221 in the first body 211 is formed relatively wide so that the waste coming through the automatic feeding means 400 can be easily digested.

At this time, the inlet side of the first body 211 may be further provided with a liquid waste supply means 260 to which the liquid waste is injected. The liquid waste supply means 260 stores waste in a gel state and is connected to a storage tank 261 connected to the first body 211 of the pyrolysis means 200 through a pipe, and pumps the stored waste to the pyrolysis means 200. It consists of a transfer pump (262). Therefore, the liquid waste stored in the storage tank 261 is mixed with the solid waste provided to the pyrolyzer body 210 through the main hopper 150 to undergo a waste treatment process.

The second body 212 is changed from a streamlined to a circular structure, the gap between the pyrolyzer body 210 and the pyrolysis screw 220 to maximize the pyrolysis contact area for melting the flammable waste of the solid state in the liquid state. Minimize. That is, in the streamlined structure of the first body 211, the screw blade 221 is increased on the basis of the axis of the pyrolysis screw 220, so that the thermal decomposition of the waste occurs in earnest. Increase the area. In addition, the pyrolysis screw 220 has a function of preventing the backflow of the gas generated by precisely manufactured so as not to be spaced apart from the pyrolyzer body 210.

The third body 213 takes the form of a streamline again from a circular shape, the upper portion of the pyrolysis screw 220 to guide the generated gas to the outside to convert the molten liquid waste into a gas state and a solid state In the space is formed. On the other hand, the end of the screw blade 221 of the third body 213, the lift 222 is connected to dissipate the waste that is aggregated, and to facilitate the heat transfer to maximize the thermal decomposition rate, the liquid (gel state) waste gravity It is mainly present in the bottom of the pyrolyzer body 210 by the lift 222 by scattering it to spread the waste evenly to the screw blade 221 as well as to the pyrolyzer body 210 to convert the waste of the gel state into a gas state It increases the rate of thermal decomposition. That is, the lift 222 may improve the productivity of the entire process by allowing gas to be gasified in a short time. In addition, the heat transfer and the thermal decomposition rate in the pyrolysis means 200 is an important part, the outer circumferential surface of the third body 213 is coupled to the spiral thermal guide 214 of the diameter corresponding to the inner diameter of the pyrolysis chamber 240. That is, the heat source spirally along the heat guide 214 so that the heat source stays in the pyrolysis chamber 240 for a sufficient time while the heat source supplied from the combustion chamber 250 heats the pyrolyzer body 210 and is discharged. Discharged.

In addition, when the dryer body 110 and the pyrolyzer body 210 are arranged in multiple stages in one pyrolysis space when the drying means 100 and the pyrolysis means 200 are arranged in multiple stages, the state of the waste contained in the respective bodies may be reduced. Different and severe temperature variation occurs in the phenomenon that the pyrolysis efficiency is lowered, in this embodiment, the dryer body 110 and the pyrolyzer body 210 are independent pyrolysis space according to the drying chamber 140 and the pyrolysis chamber 240. To control each temperature. Accordingly, by organically connecting the pyrolysis space provided up and down, each of the stages can be adjusted appropriately while the temperature of each stage is corrected.

At the end of the third body 213 of the pyrolyzer body 210, a gas reforming means 500 having a residence space in which pyrolysis gas generated during pyrolysis of waste is sufficiently stayed and discharged is installed, and pyrolysis and remaining coal The fire is discharged through the carbonization material discharge means 600 connected to the lower side of the third body 213.

On the other hand, the screw for drying and pyrolysis work is installed horizontally but there is a mechanical defect that can not be lengthened indefinitely due to the thermal warpage phenomenon, in this embodiment the pyrolysis means 200 and drying means 100 for preliminary pyrolysis By arranging multiple stages up and down, it is possible to proceed pyrolysis work stably and quickly. At this time, in the present embodiment, the drying means and the pyrolysis means are arranged in two stages up and down, but when a large amount of waste treatment is required as shown in FIG. 10, the drying means 100 'and the pyrolysis means 200' are three stages or more. Of course, it can also be formed in more than one stage. At this time, the drying screw 120 'and the pyrolysis screw 220' may be arranged in a pair side by side inside the dryer body 110 'and the pyrolyzer body 210' in order to increase the process efficiency.

As shown in Figure 1 and 5, the automatic metering means 300 is provided with a metering hopper 310 is installed between the drying means 100 and the automatic feeding means 400. The outer circumferential surface of the metering hopper 310 is provided with a load cell 320 for sensing the weight of the waste, the slide gate 340 for controlling the discharge of waste is mounted on the lower outlet side of the metering hopper 310.

Automatic metering means 300 is located in the middle of the drying means 100 and the thermal decomposition means 200 and independently exist so as to be free from thermal expansion of the drying means 100 and thermal expansion of the thermal decomposition means 200, The flexible joint 330 is installed at both the upper and lower ends of the metering hopper 310 so as to be blocked.

That is, a device capable of measuring the quantity of waste discharged from the drying means 100 is independently present, and continuously measures the amount of waste discharged by drying continuously from the drying means 100 to the pyrolysis means 200, By interlocking the drying means 100 by the electrical signal from the load cell 320 that is the weighing scale, it is possible to accurately control the amount of waste introduced into the drying means 100 and the amount of waste introduced into the pyrolysis means 200.

The automatic input means 400 has an input hopper 410 so that the solid waste is supplied from the automatic metering means 300, and the pyrolysis means 200 when automatically discharging the waste from the input hopper 410 by a predetermined amount. A small amount of pyrolysis gas discharged from is recycled by flowing into the drying means 100 through the upper automatic metering means 300.

At least one slide gate 420 is provided in the input hopper 410 (in this embodiment, two), and the slide gate 420 is a gate body operated by a hydraulic / pneumatic cylinder, and the airtight when sliding. It consists of a sealing unit and a sliding guide for holding.

Since the slide gate 420 functions to continuously operate the pyrolysis means 200 while blocking external air, the slide gate 420 has a structure of two or more stages, and a process in which flammable wastes containing fine foreign substances or long foreign substances are operated during sliding operation. In the case of being inserted into the gate body through the end of the slider is exposed to the problem.

Therefore, in the present embodiment, there is an injection hole in the middle of the slide gate, so that the tip of the slider is not exposed to the waste when the slide gate is opened and closed, thereby preventing foreign substances from being inserted into the gate body.

That is, by forming an inlet in the middle of the slide gate, the waste is completely introduced into the pyrolysis chamber 240 while the foreign matter is not removed to the outside during the operation of the slide gate, and the reciprocating opening and closing movement is carried out. The existing slide gate has a serious defect in gas tightness when it is closed, but this embodiment solves this problem.

As shown in Figures 1 and 6, the gas reforming means 500 is a dechlorination reaction for removing chlorine from the gas retention tower 510 and the reformed gas connected vertically to the outlet side of the pyrolyzer body 210. A tower 550.

The spiral screw 520 is provided inside the gas retention tower 510 to sufficiently secure the residence time of the heat source in the process of discharging the heat source supplied from the combustion chamber 250 after heating the waste in the pyrolyzer body 210. It is provided, the gas is sufficiently discharged while the gas is discharged while rotating spirally along the spiral screw 520. A driving motor 530 is coupled to the upper end of the spiral screw 520 to provide a driving force for rotating the spiral screw 520 at a predetermined speed.

That is, the gas discharged from the pyrolysis chamber 240 is continuously subjected to the compound reaction, it is necessary to provide a gas residence space for separation of the tar and the carbonized material, the dewaxing and detartar of the gas in this residence space You can proceed with the process. At this time, the screw blade of the spiral screw 520 rotated by the drive motor 530 is configured to have an outer diameter corresponding to the inner diameter of the gas retention tower 510 is tar or bullet attached to the inner peripheral surface of the gas retention tower 510. It serves to separate the fire from the inner circumferential surface of the gas retention tower 510.

The heat source supply chamber 540 communicated with the pyrolysis chamber 240 through a connection passage is provided outside the gas retention tower 510 and the dechlorination reaction tower 550. That is, a means for correcting the temperature is required on the outside of the gas retention tower 510 so that the pyrolysis gas rising through the gas retention tower 510 is not condensed. Accordingly, the pyrolysis heat source is smoothly supplied into the heat source supply chamber 540 surrounding the gas retention tower 510 so that the gas retention tower 510 maintains 250 to 350 ° C. so that the pyrolysis gas does not condense and the dechlorination reaction tower 550. ) To the side.

The dechlorination tower 550 has a limestone storage tank 551 installed therein to remove chlorine contained in the pyrolysis gas. That is, in the dechlorination tower 550, chlorine gas is converted to calcium chloride to remove chlorine by causing a chemical reaction of CaCO ₃ + 2HCl → CaCl ₂ + CO ₂ + H ₂ O. At this time, the temperature of the dechlorination tower 550 is maintained at 120 ~ 300 ℃.

As shown in FIG. 1 and FIG. 8, one side of the dechlorination tower 550 of the gas reforming unit 500 includes gas purification means 700 for purifying dechlorination-treated pyrolysis gas and refined oil using pyrolysis gas. After generating and storing the purified oil generating means 800 for supplying it to the combustion chamber 250 is provided.

The gas purifying means 700 includes a precipitation condensing apparatus 710 for generating primary refined oil by condensing the dechlorinated pyrolysis gas under a stable atmosphere, and a purifying apparatus for improving the quality of the gas. The purified gas is stored in the gas storage tank and supplied to the combustion chamber 250 to be used as the combustion gas.

Refined oil generating means 800 is a storage tank for storing the primary refined oil supplied from the precipitation condensation device 710, an oil-water separator for oil-separating the primary refined oil stored in the storage tank and the oil-separated refined oil according to the boiling point It is equipped with a distillation column for separating diesel, diesel and heavy oil. Some of the refined oils thus purified may be used as initial fuel when the combustion chamber 250 operates.

The connection part of the dechlorination tower 550 and the precipitation condensation device 710 is preferably connected by using the flexible joint 570 to prevent distortion due to thermal expansion during the process.

1 and 7, the carbonization material discharge means 600 is to discharge the carbonized material generated after pyrolysis from the pyrolyzer body 210, discharge coupled to the end of the pyrolyzer body 210 Hopper 610 is provided.

Carbonization material is continuously discharged through the lower end of the pyrolyzer body 210, discharge hopper 610 to block the pyrolysis gas discharged from the external air and pyrolyzer body 210 when the carbonized material is discharged from the outside. The slide gate 620 is provided. The slide gate 620 is configured in at least two stages to maximize the blocking of the outside and prevent malfunction.

The carbonized material continuously discharged through the carbonized material discharge means 600 is immediately discharged to the carbonized material forming means 900 through the screw conveyor 640 installed in the ejector body 630 to produce solid fuel.

In other words, the discharged carbonized material is discharged by mixing foreign substances such as super-magnetic, iron, and non-ferrous metals together, and after being completely separated from the foreign matter and carbonized material through the pulverizing device and sorting device, the foreign material is removed and only the carbonized material is passed through the molding device. It produces a fuel having a predetermined shape, such as lignite. At this time, the screw conveyor 640 is preferably provided with a water cooling jacket (not shown) so that the carbonized material is discharged while cooling.

On the other hand, the drive motor used as a drive means for rotating each screw in the present embodiment is any one of a VS motor, a DC motor, a geared motor equipped with an inverter to variably adjust the thermal decomposition rate of waste by adjusting the rotational speed of each screw One is chosen and applied.

Hereinafter, a thermal decomposition method of combustible wastes according to the present invention will be described with reference to FIG. 9.

The combustible solid waste including general and industrial waste is crushed to a predetermined size in the crusher after the arrival, and the soil, dust and the like are removed through the sorting machine, and some waste selected by non-ferrous metals and the like is recycled. The sorted combustible waste is transferred to a mill and comminuted to a relatively small size.

The pulverized combustible waste is introduced into the drying means 100 through the main hopper 150, and the moisture contained in the waste is removed through a three-step drying process. The solid combustible waste from which water is removed is introduced into the pyrolyzer body 210 by a predetermined amount by the automatic metering means 300 and the automatic feeding means 400. In this case, the dried solid waste may be mixed with liquid flammable waste such as waste oil by the liquid waste supply means 260 and then transferred to the pyrolyzer body 210.

On the other hand, the waste transported to the pyrolyzer body 210 is a water separation, dehydration, dechlorination action by the indirect heating method of the heat source provided to the pyrolysis chamber 240.

That is, when the waste is automatically injected into the pyrolyzer body 210, the waste is transferred to the right direction on the drawing of Figure 1 by the screw blades formed on the outer peripheral surface of the pyrolysis screw 220, the waste is melted and vaporized The thermal decomposition is continuously performed by heat applied indirectly in the pyrolysis chamber 240 which maintains an atmosphere of high temperature and low oxygen.

On the other hand, the heat source that indirectly heats the waste is supplied from the high temperature combustion chamber 250 described above. That is, the temperature inside the pyrolysis space of the initial pyrolysis chamber 240 at which the pyrolysis means 200 is operated is raised to a predetermined temperature (about 350 to 500 ° C.) due to the operation of the high temperature combustion chamber using the refined refined oil. .

At this time, the combustion chamber 250 uses the initial fuel (eg, diesel) until the pyrolysis gas from the pyrolysis chamber 240 is not yet generated and the temperature inside the combustion chamber 250 is elevated to a predetermined temperature. The exhaust gas heated up in the combustion chamber 250 flows into the pyrolysis chamber 240 and then passes through the inner space of the annular pyrolysis chamber 240 formed outside the pyrolysis chamber 240 and then discharged to the outside.

On the other hand, the waste is transported to the outlet side along the transfer space formed in a circular shape on the lower side of the lower pyrolysis chamber 240 having a cross-sectional area when the pyrolysis screw 220 is driven, the pyrolysis gas evaporated during the waste pyrolysis is pyrolysis chamber 240 While remaining in the gas retention tower 510 formed at the top, the waste is indirectly heated to a high temperature to be thermally decomposed and then transferred to the dechlorination tower 550.

Accordingly, the pyrolysis gas transported after the pyrolysis is passed through the dechlorination tower 550 and then transferred to the refined oil generating unit 700, and generates a portion of light oil and heavy oil according to the boiling point from the refined oil generating unit 700. It is supplied as an initial fuel to a combustion chamber.

1 is a schematic overall configuration diagram of a flammable waste pyrolysis system according to an embodiment of the present invention.

2 is an enlarged view of the drying means according to FIG. 1.

3A to 3C are cross-sectional views showing lines “A-A”, “B-B”, and “C-C” of FIG. 2, respectively.

4 is an enlarged view of the pyrolysis means according to FIG.

5 is an enlarged view of the automatic metering means according to FIG. 1;

6 is an enlarged view of the gas reforming means according to FIG. 1.

7 is an enlarged view of the carbonaceous material discharge means and the carbonized material forming means according to FIG.

Figure 8 is a schematic block diagram showing a refined oil production process according to an embodiment of the present invention.

9 is a flow chart schematically showing the overall pyrolysis method according to an embodiment of the present invention.

10 is a schematic view showing a pyrolysis system of combustible waste according to another embodiment of the present invention.

<Description of Symbols Used in Main Parts of Drawings>

100; Drying means 110; Dryer body

120; Dry screw 140; Drying room

150; Main hoppers 151, 152; Waste Detection Sensor

200; Pyrolysis means 210; Pyrolyzer body

220; Pyrolysis screw 240; Pyrolysis chamber

250; combustion chamber

300; Automatic metering means 310; Weighing Hopper

320; Load cell 330; Flexible joint

340; Slide gate

400; Automatic feeding means 410; Input Hopper

420; Slide gate

500; Gas reforming means 510; Gas staying tower

520; Spiral screw 530; Drive motor

550; Dechlorination column 551; Limestone Storage Tank

600; Carbide discharge means 610; Discharge hopper

620; Slide gate 640; Ejection screw

700; Gas purification means 800; Refined oil generating means

900; Carbon forming means

Claims (28)

A pyrolyzer body having a main hopper into which flammable waste is introduced, and rotatably installed with a pyrolysis screw for transferring, melting and vaporizing waste introduced through the main hopper; A pyrolysis chamber installed outside the pyrolyzer body to maintain a high temperature and low oxygen atmosphere to continuously pyrolyze the waste by indirect heating; Is provided on one side of the pyrolysis chamber, comprising a combustion chamber for supplying heat to the pyrolysis chamber by burning the non-condensing gas of the pyrolysis gas generated during the pyrolysis of the waste to use as a heat source for pyrolyzing the waste transported to the pyrolysis body. Pyrolysis system of combustible waste, characterized in that. A main body having a main hopper into which flammable wastes are input, and a dryer body having a drying screw for removing moisture contained in the wastes; A drying chamber installed outside the dryer body to apply heat to the waste by indirect heating; A pyrolyzer body positioned below the dryer body and having a pyrolysis screw for transferring, melting and vaporizing waste provided from the dryer body; A pyrolysis chamber installed on the outside of the pyrolyzer body so as to communicate with the drying chamber so as to maintain a high temperature and low oxygen atmosphere to continuously pyrolyze the waste by indirect heating; Is provided on one side of the pyrolysis chamber, comprising a combustion chamber for supplying heat to the pyrolysis chamber by burning the non-condensing gas of the pyrolysis gas generated during the pyrolysis of the waste to use as a heat source for pyrolyzing the waste transported to the pyrolysis body. Pyrolysis system of combustible waste, characterized in that. The method according to claim 1 or 2, The main hopper pyrolysis system of combustible waste, characterized in that at least one waste detection sensor is provided. The method according to claim 2, The dryer body is a pyrolysis system of combustible waste, characterized in that the step is formed to extend stepwise along the conveying direction of the waste. The method according to claim 4, The dryer body has a first body formed with a predetermined space and a screw blade of the drying screw, a second body extending stepwise to the first body, the screw blade and the gap is not formed, the step extends to the second body A pyrolysis system of combustible wastes, characterized in that it is divided into a screw blade and a third body formed with a predetermined space. The method according to claim 5, The screw blades of the third body pyrolysis system of combustible waste, characterized in that the lift is mounted. The method according to claim 2, One side of the dryer body is a pyrolysis system of combustible waste, characterized in that a compression device for compressing the steam generated by indirect heating of the waste to supply to the combustion chamber is installed. The method according to claim 1 or 2, The pyrolysis body is a pyrolysis system of combustible waste, characterized in that the step is formed to extend stepwise along the conveying direction of the waste. The method according to claim 8, The pyrolyzer body includes a screw body of a pyrolysis screw and a first body formed to have a predetermined space, a second body extending stepwise to the first body and having no gap between the screw wing and the second body, stepwise extending to the second body. And a third body formed with a screw blade and a predetermined space. The method according to claim 9, The screw blades of the third body pyrolysis system of combustible waste, characterized in that the lift is mounted. The method according to claim 2, One side of the dryer body is a pyrolysis system of combustible waste, characterized in that further provided with an automatic metering means for measuring the dried waste to supply to the pyrolyzer body. The method of claim 11, The automatic metering means includes a metering hopper connected to the dryer body, a load cell mounted on the metering hopper for sensing the weight of the waste being transported, and a slide gate installed to open and close at an outlet of the metering hopper to control the discharge of waste. A pyrolysis system of flammable waste, characterized in that. The method according to claim 12, A pyrolysis system of combustible waste, characterized in that a flexible joint is installed at both ends of the metering hopper. The method according to claim 1 or 2, The pyrolysis system of combustible wastes, characterized in that a gas retention tower is installed at one side of the pyrolyzer body to hold the pyrolysis gas evaporated upon pyrolysis of the waste for a predetermined time. The method according to claim 14, The gas cracking tower pyrolysis system, characterized in that the screw installed to separate the tar, carbonization material attached to the inner wall of the gas retention tower is installed. The method according to claim 1 or 2, The pyrolysis system of combustible waste, characterized in that a dechlorination reaction tower for removing chlorine in the pyrolysis gas is installed on one side of the pyrolysis body. 18. The method of claim 16, And pyrolysis means for purifying pyrolysis gas from which chlorine has been removed from the dechlorination column. 18. The method of claim 16, And sedimentation and condensation of the pyrolysis gas from which the chlorine has been removed from the dechlorination tower, and further comprising refined oil generating means for generating gasoline, light oil and heavy oil according to boiling points in the distillation column. 19. The method of claim 18, And a portion of the refined oil produced from the refined oil generating means is supplied to the combustion chamber as an initial fuel. The method according to claim 1 or 2, And pyrolysis means for continuously discharging carbonized material generated after pyrolysis from the pyrolysis chamber. The method according to claim 2, In the drying chamber and the pyrolysis chamber, a thermal guide for increasing the residence time of the heat provided from the combustion chamber is installed, the pyrolysis system of flammable waste. A waste supplying step of supplying combustible wastes which are pulverized and sorted and supplied to a drying means through a main hopper; A drying step of removing moisture by indirect heating while maintaining a high temperature and low oxygen dry chamber atmosphere while transferring the waste introduced into the drying means by a drying screw; A pyrolysis step of receiving a dried waste, which is transported, melted, and vaporized by a pyrolysis screw, and a pyrolysis step of continuously pyrolyzing the waste by indirect heating by maintaining a high temperature and low oxygen pyrolysis chamber atmosphere. Pyrolysis method. 23. The method of claim 22, The pyrolysis step includes a non-condensing gas supply step of supplying heat into the pyrolysis chamber by burning uncondensed gas in pyrolysis gas generated during pyrolysis of waste to continuously dry and pyrolyze the introduced waste. Pyrolysis of combustible waste. 23. The method of claim 22, And a gas retention step of increasing the residence time of the pyrolysis gas discharged from the pyrolysis step. 23. The method of claim 22, The pyrolysis method of the combustible waste, characterized in that it further comprises a gas reforming step of removing the chlorine by passing the pyrolysis gas discharged from the pyrolysis step through a dechlorination column. 23. The method of claim 22, A method of pyrolysis of combustible wastes, further comprising: generating refined oil according to a boiling point in a distillation column using pyrolysis gas, and using refined oil used as an initial fuel when operating a combustion chamber provided at one side of the pyrolysis chamber. The method according to any one of claims 22 to 26, The pyrolysis method of the combustible waste, characterized in that further comprising a carbonized material discharge step of continuously discharging the carbonized material generated during the thermal decomposition of the waste in the pyrolysis step. 23. The method of claim 22, A pyrolysis method of combustible waste, characterized in that the temperature inside the pyrolysis chamber for pyrolyzing the waste is maintained at 350 ~ 500 ℃.

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