KR101334880B1 - Waste disposal system and exhaust gas to prevent the device used in the system - Google Patents

Abstract

The present invention relates to a waste disposal system comprised to collect oil generated during waste treatment and use the oil, and an exhaust gas prevention apparatus collecting oil contained in the exhaust gas discharged during the waste treatment for the waste disposal system and removes pollutants, specifically, to a waste disposal system, and an exhaust gas prevention apparatus capable of being used for the waste disposal system. The waste disposal system collects the oil generated during the waste treatment and uses it as a fuel for heat source which is used for thermal decomposing or drying the waste. The waste disposal system can improve energy efficiency by removing odor due to wet gas generated during the drying, and by using the heat followed by the odor removal as fuel for the heat decomposition. The waste disposal system is comprised to collect the oil from the heat decomposition exhaust gas containing the oil, gas and numerous foreign substances which are discharged by the heat decomposition, and removes various pollutants causing air pollution. [Reference numerals] (AA) Gas;(BB,CC,DD,EE) Oil;(FF) Thermal decomposition exhaust gas;(GG) Humid gas

Description

Waste disposal system and Exhaust gas to prevent the device used in the system}

The present invention is a waste treatment system configured to recover and use the oil (Oil) generated during the waste treatment and to prevent the exhaust gas to recover the oil (Oil) in the exhaust gas discharged during the waste treatment used in the system and to remove contaminants Relates to a device.

As the society is showing full-fledged industrialization, there is an urgent need for efficient waste disposal measures as the environmental pollution problem associated with waste disposal is serious as the wastes caused by 'mass production and mass consumption' increase rapidly.

In general, 'waste' is a generic term for materials that become obsolete, and according to the conventional waste management law, people's lives such as garbage, combustion materials, sludge, waste oil, waste acid, waste alkali, and animal carcasses But it is defined as a substance that is no longer needed for industrial activities. Waste treatment options currently in use include 'reduction', 'recycling', 'recycling', 'landfill' and 'incineration'.

Among these, waste reduction methods such as weight loss, recycling, and regeneration are not the final waste treatment methods, and only a few parts are wastes, and landfills cause severe soil and water pollution over a long period of time. It becomes a target. Therefore, at present, the method of 'incineration' is mainly used, which is a method of burning wastes by using a flame. However, waste treatment by incineration also has various problems. That is, in the case of incineration where the flame is directly applied to the waste, it is practically impossible to burn completely due to various factors such as waste load, density, moisture content, incinerator size and heating temperature, and soot, dust and air pollution due to incomplete combustion. There is a secondary problem that a large amount of pollution emission gas and the like.

Recently, various methods of pyrolysis waste were introduced in high temperature and vacuum environment, and various pyrolysis devices and methods have been presented, developed and used, and technology is continuously developed to provide more advanced technology. .

Referring to FIG. 1, an indirect heating pyrolysis apparatus for pyrolysis waste in a high temperature and vacuum environment includes a heating furnace in which heating means are largely formed, and a screw-type pyrolysis furnace for pyrolyzing waste installed inside the heating furnace. The waste is introduced into the pyrolysis furnace is heated to a high temperature by an indirect heating method and the interior of the pyrolysis furnace to maintain the vacuum state so that the waste is pyrolyzed in a vacuum environment. In this way, the waste is pyrolyzed in a pyrolysis furnace at high temperature and vacuum to be decomposed into pyrolysis exhaust gas (gas and oil), char, etc., and the decomposed pyrolysis exhaust gas (gas and oil) is discharged through the gas outlet. It is discharged and guided to a gas / oil collection (recovery) device, and gas and oil are separated and collected (recovered) in the gas / oil collection (recovery) device, and the remaining char is discharged through the discharge port of the car.

Applicant of the present invention, the pyrolysis is caused by the phenomenon that the airtight state is easily broken in the sealing portion to maintain the airtight and at the same time rotationally supported by the expansion and contraction caused by the temperature change generated in the conventional indirect heating type pyrolysis device. In addition to solving the problems (disadvantages) that are not well achieved and the problem of having to separate purification process (disadvantage) by containing a large amount of foreign matter in the oil recovered from the gas / oil collection (recovery) device, the conventional waste pyrolysis device ( In the case of a system), in order to solve the problem of being inconvenient to install and use in units of villages or regions because it is not a structurally small form, a technology related to waste pyrolysis, such as waste pyrolysis system of Patent No. 10-1202810, has been provided.

In addition, in order to suppress various civil complaints arising from the ever-increasing amount of waste and to satisfy environmental regulations that are continuously strengthened in order to protect the environment, it is necessary to develop continuous technologies for waste disposal systems. It is true.

(KR) Registered Utility Model Publication No. 20-0205816 (Registration date: September 27, 2000) (KR) Public Utility Model Publication No. 20-2012-0006372 (Publication date: September 17, 2012) (KR) Registered Patent Publication No. 10-1070777 (Registration date: September 29, 2011) (KR) Registered Patent Publication No. 10-1202810 (Registration Date: 2012.11.13)

The present invention is to provide a waste treatment system and an exhaust gas prevention device used in the system to suppress the occurrence of various complaints in the treatment of waste, while satisfying the environmental regulations that are continuously strengthened to protect the environment. .

That is, it removes odor generated when drying various wastes such as sludge to suppress complaints about odor, and collects oil, fine particles and odors in pyrolysis exhaust gas discharged during pyrolysis of waste. The present invention aims to provide a waste treatment system and an exhaust gas prevention device used in the system, which are configured to improve energy efficiency by using the collected and removed oil as a heat source used in waste drying or pyrolysis.

The waste treatment system of the present invention invented to achieve the above object comprises: a waste treatment system for treating waste using pyrolysis, the odor removing apparatus boiler for removing odor using high heat; A waste drying apparatus using a rotary dryer having a screw blade for drying the waste using a heat source of the odor removing apparatus boiler; An indirect heating pyrolysis apparatus for pyrolyzing waste by indirect heating; A gas / oil collection device configured to separate the pyrolysis exhaust gas discharged from the pyrolysis furnace of the indirect heating type pyrolysis device into gas and oil and to collect the gas and oil, respectively; An exhaust gas prevention device configured to capture oil in the pyrolysis exhaust gas discharged from the gas / oil collection device and remove contaminants in the pyrolysis exhaust gas,

The oil collected by the gas / oil collecting device or the exhaust gas preventing device is supplied to the odor removing device boiler or an indirect heating pyrolysis device and used as fuel, and the wet gas generated when the waste is dried in the waste drying device is odor. Odor is removed and the odor is removed, and the pyrolysis exhaust gas discharged from the pyrolysis furnace of the indirect heating type pyrolysis apparatus passes through the gas / oil collecting device and the exhaust gas prevention device in order to recover oil. For example, a waste disposal system configured to remove contaminants in exhaust gas.

The indirect heating type pyrolysis device and the gas / oil collection device are further provided with a screw type exhaust gas guide device configured to supply the pyrolysis exhaust gas discharged from the pyrolysis furnace to the gas / oil collection device after the foreign matter is removed therebetween.

The exhaust gas of the heat source used in the waste drying apparatus may be supplied to an indirect heating type pyrolysis apparatus and used as a heat source and then discharged to the atmosphere through a flue equipped with a biofilter.

The waste drying apparatus includes a plurality of wet gas guide holes for discharging the wet gas, and a plurality of spatula blades for supporting and stirring the waste on the screw blades of the rotary dryer. Quickly discharge the gas, it is made to improve the drying efficiency by raising and stirring the waste moving to the upper side by using the spatula blade,

The exhaust gas prevention apparatus includes an exhaust gas prevention chamber including an exhaust gas inlet pipe through which a pyrolysis exhaust gas passed through a gas / oil collecting device and an exhaust gas discharge pipe through which exhaust gas from which noxious substances are removed is discharged, and the exhaust gas A cooling bath configured to cool the prevention chamber with cooling water,

The exhaust gas prevention chamber is in communication with the exhaust gas inlet pipe so that the exhaust gas flows into the lower side, an oil refinement chamber configured to purify the oil in a precipitation method, an exhaust gas filtration filter provided above the oil refinery chamber, and the filtration filter. It is characterized in that it comprises an exhaust gas purification chamber is provided on the upper side and filled with a pollutant purification material for removing harmful substances in the exhaust gas communicating with the exhaust gas discharge pipe so that the purified exhaust gas is discharged.

The exhaust gas prevention device used in the waste treatment system according to another embodiment of the present invention is an exhaust gas prevention device for treating the exhaust gas generated and discharged during waste treatment, wherein the exhaust gas inlet pipe through which the exhaust gas is introduced and the harmful substances are removed. An exhaust gas prevention chamber equipped with an exhaust gas discharge pipe for discharging exhaust gas, and a cooling water tank configured to cool the exhaust gas prevention chamber with cooling water,

The exhaust gas prevention chamber is in communication with the exhaust gas inlet pipe so that the exhaust gas flows into the lower side, an oil refinement chamber configured to purify the oil in a precipitation method, an exhaust gas filtration filter provided above the oil refinery chamber, and the filtration filter. It is characterized in that it comprises an exhaust gas purification chamber is provided on the upper side and filled with a pollutant purification material for removing harmful substances in the exhaust gas communicating with the exhaust gas discharge pipe so that the purified exhaust gas is discharged.

The exhaust gas preventing chamber is composed of at least two or more exhaust gas preventing chambers, the exhaust gas is made to sequentially move the two or more exhaust gas preventing chambers,

The cooling bath comprises a side cooling bath formed on the side of the exhaust gas prevention chamber and an upper surface cooling bath formed on the upper surface.

Waste treatment system of the present invention made as described above, the oil is removed from the pyrolysis exhaust gas containing the oil and gas generated during the thermal decomposition of the waste, and the contaminants in the pyrolysis exhaust gas from which the oil is recovered While the waste oil is removed and discharged, the recovered oil is used as a fuel of a heat source used for waste drying or pyrolysis, and the high-temperature exhaust gas used for waste drying is supplied to a pyrolysis apparatus to be used as a heat source and then discharged to the atmosphere. It will be able to increase energy efficiency and reduce the incidence of complaints.

In addition, by using the oil generated during the thermal decomposition of the waste energy of the heat source used in the drying of the waste to increase the efficiency of the energy and to treat the wet gas when drying the waste containing a large amount of water at a very high temperature to remove odors Therefore, it is possible to suppress the occurrence of complaints about odor generated during waste drying.

In addition, in the case of a waste drying apparatus for drying waste, it is possible to maximize the drying efficiency without adding a special configuration, and maintains the conventional facilities as it is, and improves the drying efficiency by only modifying or replacing the configuration of the screw blades of the rotary dryer as a part. By maximizing, it is possible to derive the economics of equipment costs and economics of operation.

In addition, the exhaust gas prevention device reduces the energy efficiency and civil complaints by collecting (recovering) and removing oil and contaminants in the pyrolysis exhaust gas, cooling the high temperature exhaust gas, and purifying the oil to remove foreign substances by sedimentation. Could be.

1 is a schematic cross-sectional view of an indirect heating type pyrolysis apparatus in use in the prior art.
Figure 2 is a schematic diagram of a waste treatment system showing an embodiment of the present invention.
Figure 3 is a front sectional schematic view of a waste drying apparatus showing an embodiment in the present inventors waste treatment system.
4 to 6 is a partial detailed view of the rotary dryer of the waste drying apparatus showing an embodiment in the present invention waste treatment system.
Figure 7 is a schematic diagram of a waste pyrolysis apparatus showing an embodiment in the present inventors waste treatment system.
Figure 8 is a schematic diagram of a screw type exhaust gas guide device and the gas / oil collection device showing an embodiment in the present waste treatment system.
Figure 9 is a perspective schematic view of the exhaust gas prevention device showing one embodiment in the present invention waste treatment system.
Figure 10 is a schematic cross-sectional view of the exhaust gas prevention device showing an embodiment in the present waste treatment system.
Figure 11 is a front sectional schematic view of the exhaust gas prevention device showing an embodiment in the present invention waste treatment system.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In the present invention, the waste of waste resources such as waste vinyl, synthetic resin, waste tire, etc. are heated in an indirect heating method in a vacuum state to pyrolyze into gas, oil, char, etc. In order to separate the collected gas and oil and collect (recover), and to dry the sludge type waste containing a large amount of water, the oil collected (recovered) during the pyrolysis process is used as the energy of the heat source. To remove odors by treating the wet gas generated during drying at very high temperature (800 ~ 900 ℃) and to use the used high temperature waste heat source as the heat source of the waste pyrolysis device to increase energy efficiency and odor and pollutants. The waste treatment system is designed to suppress the occurrence of complaints.

 Hereinafter, with reference to the accompanying drawings showing an embodiment of the present invention will be described in detail.

As shown in FIG. 2, the waste treatment system of the present invention comprises a odor removal device boiler 1 for removing odor using a high temperature of 800 to 900 ° C. and a heat source of the odor removal device boiler 1. Waste drying apparatus (2) using a rotary dryer having a screw blade to dry the waste by using, an indirect heating pyrolysis apparatus (3) for pyrolyzing the waste by indirect heating method, and the indirect heating pyrolysis apparatus (3). Screw type exhaust gas guide device (4) configured to remove foreign substances in the pyrolysis exhaust gas discharged from the pyrolysis furnace of the) and the pyrolysis exhaust gas guided to the exhaust gas guide device (4) by separating the gas and oil A gas / oil collecting device 5 configured to collect oil, respectively, and the oil in the pyrolysis exhaust gas discharged from the gas / oil collecting device 5 are collected and the pyrolysis exhaust gas is collected. Exhaust gas prevention device 6 configured to remove contaminants in the air and flue gas 7 for reprocessing exhaust gas discharged to the atmosphere from the pyrolysis device 3 or exhaust gas prevention device 6 using a biofilter. ).

In addition, although not shown, a configuration for automatic control may further include a plurality of various sensors and controllers (controllers) for remote operation and control, and automatically using a configuration of a plurality of sensors and controllers (controllers). The control method is a technique widely used in the art and various fields.

The odor removing device boiler 1 is located below or on one side of the waste drying apparatus 2 to supply high temperature heat for waste drying of the waste drying apparatus 2, Combustion of the odor gas to remove the odor, usually composed of a regenerative combustion (RTO) device having an RTO burner 110.

The odor removing device boiler 1 is to remove odors by using a direct combustion method using combustion, and after removing odors by using a high temperature, usually high temperature of 800 to 900 ° C., to the waste drying apparatus 2. Supply high temperature heat of 500 ~ 600 ℃.

The methods for removing odors include the direct combustion method using combustion as in the present invention, the catalytic oxidation method, the adsorption method, the acid and alkali cleaning method (screen method), and so far, the direct combustion method using combustion is the best method for removing the odor. It is known.

3 to 5,

The waste drying apparatus 2 contains a large amount of moisture and at the same time dries waste such as a sludge state that generates odors, while increasing the drying efficiency by smoothly moving the wet gas including the odors generated during drying. In order to increase the recovery rate of the wet gas and to suppress the occurrence of odor, the high-temperature exhaust heat of 500 ~ 600 ℃ discharged from the odor removing device boiler (1) is used as the drying heat of the waste, the recovered wet gas is Supply to the odor removing device boiler 1 is made to burn.

The configuration of the waste drying apparatus 2 is large, the body 210 is provided with an internal space 211; A part is accommodated in the internal space 211 of the body 210 and a rotary dryer 220 having a screw blade 222 for moving and drying the waste a; A waste supply device 230 for supplying waste into the rotary dryer 220; A wet gas exhaust device 240 for discharging the wet gas in the rotary dryer 220 and supplying the wet gas to the odor removing device boiler 1; It consists of a waste collection device 260 for collecting the dried waste passing through the rotary dryer (220).

The body 210, the inner space 211 is formed so that a portion of the rotary dryer 220 is accommodated, the hot gas (heat medium) in the odor removing device boiler 1 to the inner space 211 on one side An inlet 212 is formed to be supplied, a discharge port 213 is connected to the year so that the hot gas introduced to the other side of the inlet 212 is discharged, and the hot gas introduced into the inlet 212 ( A plurality of diaphragms 214 are installed in the inner space 211 so that the heating medium moves in a zigzag form and stays for a long time.

The rotary dryer 220 is configured to move and dry the supplied waste (a) by rotating the screw blades 222, a waste inlet 221a is formed on one side, the outlet for discharging the dried waste to the other side 221b is formed and horizontally provided with a cylindrical dryer body 221, a screw blade 222 installed in the dryer body 221 to rotate about the rotary shaft 223, and the rotary shaft 223 and It is largely composed of a motor 224 connected to rotate the screw blade 222, the waste (a) injected into the waste inlet 221a by moving in the direction of the outlet 221b to the screw blade 222 to the odor removing device boiler In (1), the waste (a) is heated and dried with a hot gas (heat medium) supplied to the internal space 211 of the body 210.

Waste (a) is dried in the rotary dryer 220 generates a large amount of wet gas and odor gas during drying, the large amount of the wet gas is dried in the waste body (a) when staying in the dryer body (221) The efficiency is lowered, and the malodorous gas is discharged through the discharge port 221b, causing a civil complaint. To solve this problem, as shown in Figures 3 to 5 a plurality of wet gas guide holes (222-1) for the discharge of the wet gas in the blade 222, and a plurality of for the support and stirring of the waste (a) A spatula blade 222-2 is formed.

The wet gas guide hole 222-1 provides a passage through which the wet gas can move upon inhalation into the wet gas exhaust device 240 so that the wet gas can be quickly discharged so that the phenomenon of wet gas is fixed. It is possible to prevent the deterioration of the waste drying efficiency by, the spatula blades (222-2) is a waste (a) by sweeping up or up the waste (a) moving in the rotation of the screw blade 222 to the upper side. By raising the flotation and stirring activity so that drying can occur quickly, while the waste (a) evenly contacts the heated dryer body 221 and at the same time to increase the contact rate to increase the drying efficiency of the waste.

The wet gas guide hole 222-1 and the spatula blade 222-2 are preferably formed at the outer circumferential portion of the screw blade 222 as shown in FIGS. 4 and 5. In addition, the wet gas guide hole 222-1 and the spatula 222-2 formed in the outer peripheral portion of the screw blade 222 are cut to form the wet gas guide hole 222-1. The part may be bent to form a spatula blade 222-2, which is easy to manufacture and may result in a reduction in production cost.

The rotary dryer 220, the dryer body 221 may be formed in a two-stage or multi-stage form, or may be formed in one form, depending on the size and type of waste dryer body 221 is one stage or It can be made in a variety of forms, such as a plurality of stages.

The waste input device 230 is a configuration for supplying the waste (a) to the rotary dryer 220 so that the drying is smooth, the wet gas exhaust device 240 sucks the wet gas in the rotary dryer 220. By supplying to the odor removing device boiler (1), such a technique is a prior art described in detail in (KR) Patent No. 10-0482786 waste high-speed drying apparatus and a drying method using the same. That is, the wet gas exhaust device 240 sucks the wet gas generated when drying waste (a) in the dryer body 221 of the rotary dryer 220 using a brower, and smells the sucked wet gas. It supplies to the wet gas injection nozzle of the boiler 1 for removal apparatus.

The waste collection device 260 is a configuration that is widely used in the prior art as a configuration for collecting the waste is dried and discharged from the rotary dryer 220. The dried waste collected in the waste collection device 260 does not cause odor due to removal of moisture, but is collected in a sealed manner to prevent any odor occurrence.

Referring to FIG. 7, the configuration of the pyrolysis apparatus 3, which is an indirect heating method, includes an internal space 310a provided with a heating burner 311, which is a heating means for heating waste to a high temperature so that pyrolysis can occur. Branch furnace 310 and; It is installed in the inner space 310a which is inside the heating furnace, one end 320 'of the heating burner 311 side is installed to be lower than the other end 320 ", the other end 320" side A pyrolysis furnace 320 in which a waste inlet 321 and a gas outlet 322 are formed at an upper portion thereof, and a discharge outlet 323 is formed at a lower portion thereof; A screw shaft (330) having a screw blade (331) formed at the inside of the pyrolysis furnace (320) to move the supplied waste to the heating burner (311) side; A driving device 340 for rotating the screw shaft 330 forward and reversely; The airtight holding device 350 is installed between the screw shaft 330 and the driving device 340.

The heating furnace 310 is provided with a conventional heating burner 311 to heat the pyrolysis furnace 320 in an indirect manner, is heat-insulated to prevent the heat is discharged to the outside to reduce the efficiency. . The heating furnace 310 is to discharge the high-temperature gas of 300 ~ 400 ℃ to use the waste heat source that is discharged after being used in drying in the waste drying apparatus 2 to increase energy efficiency In communication with the outlet 213 of the body (210).

The pyrolysis furnace 320 heats wastes by indirect heating in a vacuum state and thermally decomposes them with gas, oil, char, etc., and one end 320 ′ of the heating burner 311 is provided at the other end ( 320 ") installed downwards to facilitate the movement of the injected waste burner 311 side, and a sealing cover for injecting waste into the pyrolysis furnace 320 inside the other end 320". A waste inlet 321 provided with the 321a and a gas outlet 322 through which the gas and oil generated by the pyrolysis of the waste are discharged are formed, and a sealing cover for discharging the remaining char to the outside after pyrolysis. The outlet port 323 is installed is formed.

The screw shaft 330 is installed inside the pyrolysis furnace 320 to move the input waste in the direction of the heating burner 311 during the pyrolysis process, and discharge the remaining embryos by moving to the outlet port 323 after the pyrolysis. It is a configuration to make.

Referring to FIG. 8,

The exhaust gas guide device 4 is configured to guide the pyrolysis exhaust gas that is pyrolyzed by the pyrolysis device 3 to the gas / oil collecting device 5 for separating and collecting the gas and oil, which is included in the exhaust gas. It removes fine particles and prevents backflow of exhaust gas.

The exhaust gas guide device 4 is formed with an inlet at one end and an outlet at the other end so as to guide the high temperature pyrolysis exhaust gas that is pyrolyzed and discharged from the pyrolysis device 3, and has a higher outlet side than the inlet side. Guide foreign matter separating body 410 formed; Is installed in the direction of the center line of the guide foreign material separating body 410, the exhaust screw screw shaft 420 is formed with a screw blade installed to rotate around the center line, the exhaust gas screw shaft 420 discharged to rotate A first chamber 441 communicated with a gas driving device 430, an outlet of the foreign matter separating body 410, and a first compartment 441 communicated with the gas / oil collector 5. A backflow prevention chamber including two chambers 442 and a communication path 443 provided with a backflow prevention means for preventing backflow of exhaust gas between the first chamber 441 and the second chamber 442. 440.

Referring to FIG. 8,

The gas / oil collecting device 5 is configured to separate (collect) and collect (recover) the pyrolysis exhaust gas discharged from the pyrolysis device 3 in a hot gas state into oil and gas. A gas / oil separation chamber 520 installed to separate the high-temperature pyrolysis exhaust gas supplied to the internal space by the exhaust gas guide device 4 into gas and oil, store gas, and temporarily store oil; Oil level chamber for storing only the oil separated from the gas / oil separation chamber 520 and the water level for adjusting the water level in the separation tank 550 installed in the gas / oil separation chamber 520 It consists of a hermetic collection body 510 which is partitioned into a seal 540.

The gas / oil separation chamber 520 is connected to the communication tube of the exhaust gas guide device 4 to cool the high temperature pyrolysis exhaust gas supplied through the water by using water to separate the gas into oil and store the separated gas. The oil is a temporary storage place.

The upper side of the gas / oil separation chamber 520, the water stored in the lower side of the water to cool the high temperature pyrolysis exhaust gas supplied to the exhaust gas guide device (4) using water to separate the gas and oil. The separation tank 550 is opened is formed, the oil tank 560 is formed with an upper opening for temporarily storing the oil separated from the separation tank 550, the upper side in the separation tank 550 A gas outlet 523 having a sufficient gas storage space 520a to store the separated gas and having a valve installed thereon to draw the gas stored in the space 520a is formed.

The oil reservoir 530 is a place for storing the oil separated from the gas / oil separation chamber 520, the lower side is formed with an oil outlet 531 in which a valve is installed to withdraw the stored oil, the upper side A vent (air vent) for discharging the gas is installed.

The water level control chamber 540 is a place for adjusting the water level of the separation tank 550 of the gas / oil separation chamber 520, the water level control tank 570, the water level maintenance plate 541 is installed, and An auxiliary water tank 571 is formed which is partitioned by the water level holding diaphragm 541, and an air vent for discharging the gas is provided on the upper side.

The separation tank 550 formed in the gas / oil separation chamber 520 cools the high temperature pyrolysis exhaust gas supplied to the exhaust gas guide device 4 using the stored water to remove foreign substances such as moisture. In the configuration to separate the gas and oil, the separation tank 550 is provided with a perforated plate 551 so that the pyrolysis exhaust gas supplied from the exhaust gas guide device 4 can spread widely when moving upward, The separation water tank 550 and the water level control water tank 570 communicate with each other to control the water level.

The height difference of the water level maintaining diaphragm 541 formed in the water level control tank 170 is lower than the top height of the oil separation plate 121 formed in the water separation tank 550 so that a slight height difference h is achieved. Have it.

The oil tank 560 formed in the gas / oil separation chamber 520 is a place for temporarily storing the oil separated from the separation tank 550, and the separation tank 550 and the separation plate 521 for oil. The oil is separated into a) to temporarily store the oil coming through the separation plate 521 for oil.

That is, the gas separated in the separation tank 550 is filled in the upper space 520a, and the oil is positioned above the separation tank 550 in which water is stored due to the difference in specific gravity. The oil located on the upper side of the separation tank 550 passes over the separation plate 521 for oil due to a swell phenomenon caused by the exhaust gas supplied to the exhaust gas guide device 4.

The oil tank 160 is divided into a first oil tank and a second oil tank by installing a separation plate for oil, and an upper end of the secondary oil separation plate is formed lower than an upper end of the oil separation plate 521.

The oil temporarily stored in the oil tank 560 is moved and stored in the oil storage chamber 530 through the gas inlet prevention oil pipe 580.

In addition, the separation tank 550 may be provided with a cooling means (590) for preventing the temperature rise of the water and to prevent the lack of water, the cooling means 590 is a pump (591), the heat exchanger (592). It is configured to cool the water in the auxiliary tank 571 of the water level control chamber 540 to supply to the separation tank 550 to prevent temperature rise and water shortage phenomenon.

The above-described configuration of the indirect heating type pyrolysis device 3, the screw type exhaust gas guide device 4, and the gas / oil collecting device 5 has been registered and patented by the applicant of the present invention. 10-1202810 is provided in more detail in the waste pyrolysis system, the detailed technical idea will be referred to the registered patent 10-1202810 waste pyrolysis system.

9 to 11,

The exhaust gas prevention device 6 receives the pyrolysis exhaust gas in which the primary oil and the foreign matter have been removed from the gas / oil collecting device 5 to separate the oil and the foreign matter in the pyrolysis exhaust gas, and fine particles and various The exhaust gas prevention chamber 610 is provided with an exhaust gas inlet pipe 630 through which exhaust gas is introduced, and an exhaust gas discharge pipe 640 through which exhaust gas from which harmful substances have been removed is exhausted. A cooling tank 620 configured to cool the exhaust gas prevention chamber with cooling water.

The exhaust gas prevention chamber 610 is in communication with the exhaust gas inlet pipe 630 so that the exhaust gas flows in the lower side and an oil refinery chamber 611 configured to purify oil in a sedimentation manner, and is provided above the oil refinery chamber. And an exhaust gas filtration filter 612 for capturing fine particles in the exhaust gas, and an exhaust gas filtration pipe 640 provided above the filtration filter so as to discharge the purified exhaust gas and removing harmful substances in the exhaust gas. An exhaust gas purification chamber 613 filled with a pollutant purification material and a manhole 614 are included.

The exhaust gas prevention chamber 610 is composed of a plurality of chambers as shown in FIGS. 10 and 11 so as to remove harmful substances in the pyrolysis exhaust gas, and the pyrolysis exhaust gas sequentially moves the plurality of exhaust gas prevention chambers. .

The oil refining chamber 611 is a first oil refining chamber 611a and a second oil refining chamber 611b separated by a refining diaphragm 611c in order to increase the removal efficiency of foreign matter in the oil collected (recovered) by the precipitation method. ), The first oil refinery chamber (611a) is provided with a drain pipe (611e) having a valve for removing foreign matter, and the second oil refinery chamber (611b) to supply the collected oil An oil discharge pipe 611d provided with a valve is provided.

Pollutant purification material filled in the exhaust gas purification chamber 613 is used polling, zeolite, activated carbon, etc. to remove the pollutants in the exhaust gas, these pollutant purification material is filled in each exhaust gas purification chamber 613 or In one exemplary embodiment, the exhaust gas purification chamber 613 may be mixed and filled.

A circulation blower 650 may be installed between the exhaust gas inlet pipe 630 and the exhaust gas discharge pipe 640 so as to smoothly circulate the pyrolysis exhaust gas.

The cooling water tank 620 includes a side cooling water tank 621 formed at the side of the exhaust gas prevention chamber 610 and an upper surface cooling water tank 622 formed at the upper surface.

This exhaust gas prevention device 6 can be used in waste treatment systems and various exhaust gas treatments.

Waste treatment system of the present invention made in this way,

In the odor removal device boiler (1) to remove the occurrence of odor by burning the wet gas generated from the waste drying device (2) at an ultra-high temperature of 800 ~ 900 ℃, used in the odor removal device boiler (1) The fuel of the heat source is thermally decomposed to the pyrolysis apparatus 3 of the indirect heating method, and is supplied with the oil that is collected (recovered) by the gas / oil collecting apparatus 5 and the exhaust gas preventing apparatus 6.

The temperature of the exhaust gas discharged from the odor removing device boiler 1 is 500 ~ 600 ℃ it is supplied to the waste drying apparatus (2) is used as a heat source for waste drying.

The waste drying apparatus (2) is a guide hole for the wet gas formed in the screw blades of the rotary dryer, by a plurality of spatula, to quickly discharge the wet gas, and to lift and stir the waste to the upper side to quickly dry and wet gas It can be recovered and supplied to the odor removing device boiler 1 for combustion treatment.

The temperature of the discharged gas discharged after being supplied to the waste drying apparatus 2 at 500 to 600 ° C. is 300 to 400 ° C. The exhaust gas is supplied to the pyrolysis apparatus 3 of the indirect heating method and used as a heat source during pyrolysis. Do it.

The indirect heating pyrolysis device (3) is configured to pyrolyze the waste by indirect heating method, the temperature for the waste pyrolysis of the furnace 310 in the indirect heating pyrolysis device (3) is 350 ~ 450 ℃ The waste pyrolysis heat source of the furnace 310 is collected (recovered) by the exhaust gas discharged from the water used in the waste drying apparatus 2 and the gas / oil collecting apparatus 5 and the exhaust gas preventing apparatus 6. Use oil.

After the waste gas is used as pyrolysis of waste in the heating furnace 310 of the indirect heating type pyrolysis apparatus 3, the exhaust gas is discharged to the atmosphere through the flue (7) equipped with a biofilter at 150 to 200 ° C. The pyrolysis exhaust gas which is pyrolyzed and discharged at 320 is sequentially moved by screw type exhaust gas guide device 4, gas / oil collecting device 5, and exhaust gas prevention device 6 to be oil, foreign matter, fine particles. After the particles and contaminants are removed, they are discharged to the atmosphere through the year 7 provided with the biofilter.

The waste treatment system of the present invention made as described above pyrolyzes wastes by indirect heating, and collects gases and oils generated by pyrolysis in high purity, and uses them as energy of a heat source during pyrolysis and drying of wastes, By using the high temperature heat source for drying the waste as the heat source for drying the waste and the heat source for pyrolysis, the energy efficiency may be very widely used.

In addition, it is expected that the use of the wet gas generated during the drying of the waste may be easily recovered, thereby reducing the drying efficiency and the occurrence of odor, thereby suppressing the occurrence of civil complaints as well as raising the energy efficiency.

In addition, by removing the oil and harmful substances contained in the pyrolysis exhaust gas generated in the pyrolysis in multiple stages, the removal efficiency is high, which can suppress the environmental pollution and the occurrence of civil complaints, which is expected to be very easy to use. .

1: Boiler for odor removal device 2: Waste drying device
3: pyrolysis device 4: exhaust gas guide device
5: gas / oil collecting device 6: exhaust gas preventing device
7: year
220: rotary dryer 221: dryer body
222: screw blade 222-1: guide hole for wet gas
222-2: spatula 230: waste input device
240: wet gas exhaust system
610: exhaust gas prevention chamber 611: oil refinery chamber
612: Filtration filter for exhaust gas 613: Exhaust gas purification chamber
620, 621, 622: cooling water tank

Claims (6)

In a waste treatment system for treating waste by using pyrolysis,
A odor removing device boiler 1 for removing odor using high heat;
A waste drying apparatus (2) using a rotary dryer having a screw blade for drying the waste using a heat source of the odor removing apparatus boiler (1);
An indirect heating type pyrolysis apparatus (3) for thermally decomposing wastes by indirect heating type;
A gas / oil collecting device (5) configured to separate gas and oil from the pyrolysis exhaust gas discharged from the pyrolysis furnace of the indirect heating type pyrolysis device (3), respectively;
An exhaust gas prevention device (6) configured to collect oil in the pyrolysis exhaust gas discharged from the gas / oil collecting device (5) and remove contaminants in the pyrolysis exhaust gas,
The oil collected by the gas / oil collection device 5 or the exhaust gas prevention device 6 is supplied to the odor removing device boiler 1 or the indirect heating pyrolysis device 3 to be used as fuel.
The wet gas generated during waste drying in the waste drying apparatus 2 is supplied to the odor removing device boiler 1 to remove odors,
The pyrolysis exhaust gas discharged from the pyrolysis furnace of the indirect heating type pyrolysis apparatus 3 passes through the gas / oil collecting apparatus 5 and the exhaust gas preventing apparatus 6 in order to recover oil, and exhaust gas. Waste treatment system configured to remove contaminants in the body. The method of claim 1,
The screw type exhaust gas is configured to be supplied to the gas / oil collecting device 5 after the foreign matter is removed from the pyrolysis exhaust gas discharged from the pyrolysis furnace between the indirect heating type pyrolysis device 3 and the gas / oil collecting device 5. Gas guide device 4 is provided,
The exhaust gas of the heat source used in the waste drying apparatus 2 is supplied to the pyrolysis apparatus 3 of the indirect heating method, used as a heat source, and then discharged to the atmosphere through the flue 7 provided with a biofilter. Waste disposal system. The method of claim 1,
The waste drying apparatus 2, the screw blades of the rotary dryer includes a plurality of wet gas guide holes for the discharge of the wet gas, and a plurality of spatula blades for the lifting and stirring of the waste,
The waste gas treatment system, characterized in that to discharge the wet gas quickly through the guide hole for the wet gas, and to improve the drying efficiency by raising and stirring the waste moving to the upper side using the spatula blade. 4. The method according to any one of claims 1 to 3,
The exhaust gas preventing device 6 includes an exhaust gas inlet pipe 630 through which the pyrolysis exhaust gas passed through the gas / oil collecting device 5 flows in and an exhaust gas discharge pipe 640 through which the exhaust gas from which noxious substances are removed is exhausted. And a cooling tank 620 configured to cool the exhaust gas preventing chamber with cooling water.
The exhaust gas prevention chamber 610 is in communication with the exhaust gas inlet pipe 630 so that the exhaust gas flows in the lower side and an oil refinery chamber 611 configured to purify oil in a sedimentation manner, and is provided above the oil refinery chamber. Exhaust gas filled with a filtration filter 612 for the exhaust gas and a pollutant for removing harmful substances in the exhaust gas communicated with the exhaust gas discharge pipe 640 so that the purified exhaust gas is discharged above the filtration filter. Waste treatment system comprising a purification chamber (613). In the exhaust gas prevention device for treating the exhaust gas generated and discharged during the waste treatment,
An exhaust gas prevention chamber 610 including an exhaust gas inlet tube 630 through which exhaust gas is introduced and an exhaust gas discharge tube 640 through which exhaust gas from which noxious substances are removed are exhausted, and the exhaust gas prevention chamber is cooled with cooling water. While the cooling tank 620 is configured to
The exhaust gas prevention chamber 610 is in communication with the exhaust gas inlet pipe 630 so that the exhaust gas flows in the lower side and an oil refinery chamber 611 configured to purify oil in a sedimentation manner, and is provided above the oil refinery chamber. Exhaust gas filled with a filtration filter 612 for the exhaust gas and a pollutant for removing harmful substances in the exhaust gas communicated with the exhaust gas discharge pipe 640 so that the purified exhaust gas is discharged above the filtration filter. Exhaust gas prevention apparatus for a waste disposal system, characterized in that it comprises a purification chamber (613). The method of claim 5,
The exhaust gas preventing chamber 610 is composed of at least two or more exhaust gas preventing chambers, the exhaust gas is made to sequentially move the two or more exhaust gas preventing chambers,
The cooling water tank 620 is a waste treatment system, characterized in that consisting of the side cooling water tank 621 formed on the side of the exhaust gas prevention chamber 610 and the upper surface cooling water tank 622 formed on the upper surface. Exhaust gas prevention device.

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