WO2020130527A1 - Système de traitement de déchets utilisant une source de chaleur à haute température à des fins diverses - Google Patents

Système de traitement de déchets utilisant une source de chaleur à haute température à des fins diverses Download PDF

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Publication number
WO2020130527A1
WO2020130527A1 PCT/KR2019/017792 KR2019017792W WO2020130527A1 WO 2020130527 A1 WO2020130527 A1 WO 2020130527A1 KR 2019017792 W KR2019017792 W KR 2019017792W WO 2020130527 A1 WO2020130527 A1 WO 2020130527A1
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Prior art keywords
waste
heat
steam
reaction chamber
unit
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PCT/KR2019/017792
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English (en)
Korean (ko)
Inventor
윤현준
Original Assignee
(주) 모아이노베이션
윤현준
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Publication of WO2020130527A1 publication Critical patent/WO2020130527A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • B09B3/45—Steam treatment, e.g. supercritical water gasification or oxidation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • F26B23/004—Heating arrangements using waste heat recovered from dryer exhaust gases by compressing and condensing vapour in exhaust gases, i.e. using an open cycle heat pump system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/20—Waste processing or separation

Definitions

  • the present invention relates to a waste treatment system that utilizes a high-temperature source for multiple purposes, and more specifically, to utilize high-temperature and high-pressure steam discharged and used for heat treatment for waste for various purposes such as electricity production and additional drying. It is related to the configured waste treatment system.
  • Food wastes which are organic wastes, have a high moisture content and are easily decayed, generating odor and waste water during collection and transportation, and when landfilling, there is a concern that a large amount of leachate flows out and pollutes groundwater. have.
  • Korean Registered Patent No. 10-1357295 (Announcement Date: February 05, 2014) suggests a technique for manufacturing a solid waste fuel using organic waste.
  • the method of manufacturing solid fuelization for organic waste presented here basically presents only the optimum conditions for operating the reactor, and there is no specific consideration for efficiency of the entire process until the solid fuel is completed, and the reactor is used. Although it takes a considerable amount of energy to reduce 80% of moisture to 20% or less when directly or indirectly drying, it also fails to present specific considerations to reduce it or utilize it effectively.
  • the purpose of the present invention is to enable simultaneous and integrated treatment of combustible household or industrial wastes with high-functional organic wastes, and not to discharge high heat sources used for high pressure heat treatment and decompression of wastes as they are. It is to provide a waste treatment system that versatilely utilizes a high heat source capable of manufacturing high-efficiency solid fuel with excellent heat generation while energy efficiency is promoted by utilizing one or more processes.
  • the object includes: a waste supply unit including a first supply unit for storing and sending organic waste, and a second supply unit for crushing and sending combustible waste to a predetermined size; A reaction chamber for agitating wastes provided from the first and second supplying parts and heat-treating them with high temperature and high pressure steam; A waste heat recovery unit in which heat exchange between circulating water circulating through the hollow stirring shaft rotating in the reaction chamber and steam discharged from the reaction chamber is performed; A thermoelectric element unit provided to be in thermal contact with at least one of heat exchanged circulation water and steam to generate electrical energy; And a drying unit for drying the waste heat-treated in the reaction chamber through selective thermal contact with at least one of circulating water and steam heat exchanged with natural drying. It is achieved by the processing system.
  • the reaction chamber includes: a closed container provided with a supply port receiving waste from the waste supply unit and a discharge port for discharging heat treated waste; A stirrer consisting of a plurality of blades disposed around the stirring shaft and the circulating water rotating through the sealed container and circulating circulating water; And a steam line that heats the waste and discharges the steam used in the heat treatment by providing the high-temperature and high-pressure steam generated from the steam supply source through the steam pipe to the sealed container.
  • the waste heat recovery unit a heat exchanger for recovering the residual heat from the steam discharged from the sealed container and delivers it to the circulated water discharged from the hollow; And a water supply circulation part that is sent from a water supply source and passes through the hollow pipe and the heat exchanger through a circulation pipe to increase the circulation water heated to pass through at least one of the thermoelectric element part and the drying part.
  • the second supply unit a crushing machine for crushing and discharging combustible wastes input from above through a fixed cutter and a rotating cutter alternately rotating with respect to the fixed cutter to a predetermined size; And a storage hopper receiving and storing the crushed waste from the crusher, and a second metering feeder consisting of a screw conveyor arranged in three rows under the storage hopper to supply a quantity of waste to the reaction chamber at a controlled rotation. It can contain.
  • the crusher is disposed in the horizontal direction, the shaft rotates forward and backward by the power means;
  • a plurality of first cutters which are arranged protrudingly arranged at equal intervals along the circumference and the longitudinal direction of the shaft, and a plurality of agents that are projected and arranged to cross each other between the first cutters adjacent to each other.
  • the rotary cutter consisting of two cutters;
  • the uneven parts of the shape complementary to the protruding shape of the rotary cutter are repeatedly formed along the longitudinal direction of the shaft, and alternately crossed with respect to the rotary cutters, which are installed at the upper and lower portions of the positions opposite to each other based on the shaft, to rotate relative to each other.
  • the fixed cutter for pulverizing operation; And the waste falling through the uneven portion according to the primary grinding by the rotary cutter and the fixed cutter is accommodated under the rotary cutter and the fixed cutter, and the secondary waste is discharged through a predetermined mesh network. It may include a screening and discharge portion for inducing crushing.
  • the second supply unit a metal removal unit is installed around the crusher to separate and remove the metal foreign matter contained in the combustible waste by the action of magnetic force; And a spraying unit installed around the crusher to spray cooling water to lubricate the combustible waste and prevent fire.
  • the spraying unit may take the circulating water from the waste heat recovery unit and use it as the cooling water.
  • the first supply unit a storage hopper for storing the introduced organic waste, and a first quantitative supply consisting of a screw conveyor that is arranged in three rows below the storage hopper to supply a quantity of waste to the outside by controlled rotation; And a conveyor provided between the first metering feeder and the reaction chamber to transfer the quantitatively supplied waste to the reaction chamber.
  • the first supply unit for storing and sending organic wastes, and the second supply unit for crushing and sending combustible wastes to a predetermined size for simultaneous treatment with organic wastes are integrated into the reaction chamber in a quantitatively controlled state. Accordingly, there is an effect that the efficiency and versatility of waste treatment can be improved.
  • steam which is a high heat source used for heat treatment and decompression of high pressure for waste in the reaction chamber, is not discharged to the outside, but flows through the waste heat recovery unit and heat exchanges with the primary heated circulating water, and then circulates.
  • water and steam is provided to be in thermal contact with a thermoelectric element part and/or a drying part, rapid and efficient generation of electric energy and drying can be promoted, and ultimately, high efficiency solid fuel with energy reduction The effect is calculated through a series of processes.
  • FIG. 1 is an overall system diagram schematically illustrating a waste treatment system that utilizes a high heat source for various purposes according to an embodiment of the present invention.
  • FIG. 2 is a process flow chart through FIG. 1.
  • FIG. 3A is a partially cut-away perspective view and a view as viewed from above for showing a specific configuration of the crusher schematically shown in FIG. 1;
  • FIG. 3B is an exploded view of FIG. 3A.
  • FIG. 4 is a view showing a step-by-step operation state of the rotary cutter in the cross-sectional view of Figure 3a.
  • FIG. 5 is a plan view and a side view of the first and second quantitative feeders of FIG. 1.
  • a waste supply unit including a first supply unit for storing and sending organic waste, and a second supply unit for crushing and sending combustible waste to a predetermined size;
  • a reaction chamber for agitating wastes provided from the first and second supplying parts and heat-treating them with high temperature and high pressure steam;
  • a waste heat recovery unit in which heat exchange between circulating water circulating through the hollow stirring shaft rotating in the reaction chamber and steam discharged from the reaction chamber is performed;
  • a thermoelectric element unit provided to be in thermal contact with at least one of heat exchanged circulation water and steam to generate electrical energy;
  • a drying unit for drying the waste heat-treated in the reaction chamber through selective thermal contact with at least one of circulating water and steam heat exchanged with natural drying.
  • FIG. 1 is an overall system diagram schematically illustrating a waste treatment system that utilizes a high-temperature source for multi-purpose according to an embodiment of the present invention
  • FIG. 2 is a process flow diagram made through FIG. 1
  • FIG. 3A is schematically illustrated in FIG. Partial cut-away perspective view and a view from above to show the specific configuration of the shredder
  • Figure 3b is an exploded view of Figure 3a
  • Figure 4 is a view showing the step-by-step operation of the rotary cutter on the cross-sectional view of Figure 3a
  • Figure 5 is It is a top view and a side view of the 1st and 2nd quantitative feeders of 1.
  • the waste treatment system 100 that utilizes the high heat source according to the present invention for multiple purposes improves efficiency and versatility of waste treatment through organic arrangement of facilities for integrated treatment for organic and combustible waste (CW), while heat treatment It is an invention devised to promote the generation of electric energy and the rapid and efficient efficiency of waste drying through the organic arrangement of facilities that recover and utilize residual heat from the high-temperature steam (HS) used in.
  • HS high-temperature steam
  • the waste treatment system 100 As shown in Figure 1, the waste supply unit 110, the reaction chamber 120, waste heat It may be configured to include the recovery unit 130, the thermoelectric element unit 140 and the drying unit 150, and these components are individually controlled through connection with the control unit 160 and perform a series of waste treatment operations. Is done.
  • the waste supply unit 110, the organic waste (OW) and combustible living or industrial waste are uniformly physically and chemically crushed simultaneously through the heat treatment and decompression process of the reaction chamber 120 to be described later and can be primary dried.
  • it is a pretreatment component that is provided in a controlled quantity to the reaction chamber 120, respectively.
  • the waste supply unit 110 the first supply unit 110a for storing and transmitting organic waste OW as shown in FIGS. 1 to 5 and the combustible waste CW It may be configured to include a second supply unit (110b) for crushing and sending to size.
  • the first supply unit 110a is a component that collects and temporarily stores (S100) organic waste (OW) inputted from the outside and sends it to the reaction chamber 120 (S300). ) And a conveyor 118.
  • the first quantitative feeder 116 is a component provided to quantitatively provide the organic waste OW to the reaction chamber 120 to be described later, and specifically, as shown in FIG. 5, the storage hopper 116a and It may be composed of a screw conveyor (116b).
  • the storage hopper 116a is a component provided to collect and temporarily store the organic waste OW input from above, and the opening at the top so that the injected organic waste OW is sequentially delivered to the screw conveyor 116b to be described later. It will be made of a funnel shape having (S100).
  • the screw conveyor 116b is a component provided to discharge the organic waste OW sequentially delivered through the storage hopper 116a in a controlled amount in either direction of both ends of the first quantitative feeder 116, It may be formed of a rod-shaped shaft rod formed in the center and a screw blade formed in a spiral shape along the outer circumferential surface of the shaft rod.
  • the screw conveyor 116b is arranged in three rows at the bottom of the storage hopper 116a as shown in FIG. 5 to supply a quantity of waste to the outside, ie, either end of the first metering feeder 116 by controlled rotation. Will be discharged.
  • a pair located on the outside of the screw conveyor 116b arranged in three rows is simultaneously rotated and controlled in one direction by the control unit 160 to be described later, and serves to deliver the input organic waste OW to one side.
  • the rotational speed of the pair located on the outside is rotationally controlled to be proportional to the amount of the organic waste OW, so that the quantitative delivery of the organic waste OW can be made freely (S300).
  • the centrally located screw conveyor 116b is rotationally controlled in the other direction by the controller 160, which will be described later, so that organic waste OW is not entangled or aggregated in the process of being delivered to one side.
  • the rotational speed of the screw conveyor 116b located at the center can be appropriately controlled in rotation in proportion to the degree of inclusion of a component that causes entanglement in the organic waste OW.
  • the conveyor 118 is provided between the above-described first quantitative feeder 116 and the reaction chamber 120 to deliver or deliver the organic waste OW that has been quantitatively delivered to the reaction chamber 120 installed at a spaced apart location.
  • a commercialized transfer device capable of continuously providing waste from one side to the other by receiving a controlled driving force is sufficient.
  • the conveyor 118 is provided with a controlled driving force from a power means (M) such as a motor in a state of being spaced apart from the point of transfer to the end point to rotate a plurality of pulleys and a plurality of pulleys It may be provided as a surrounding, and may be formed of a belt that transports the object to be transported placed on top of the pulley.
  • M power means
  • the organic waste OW can be temporarily stored in the storage hopper 116a during the heat treatment process of the reaction chamber 120, and the heat treatment of the reaction chamber 120 is performed. After the waste is discharged after being completed, the stored waste is discharged to the conveyor 118 by the set amount through the rotation control of the screw conveyor 116b arranged in three rows for continuous supply, and is quickly sent to the reaction chamber 120. It can be provided. (S100 and S300)
  • the second supply unit 110b collects combustible waste (CW) input from the outside and crushes it to a predetermined size and temporarily stores it (S200), while quantitatively sending the crushed combustible waste (CW) to the reaction chamber 120 (S300) as a component, it is configured to include a crusher 111 and a second metering supply (117).
  • the crusher 111 uses combustible waste (CW) so that combustible living and industrial waste composed of irregular sizes and various types and components can be heat-treated smoothly in the reaction chamber 120 together with organic waste (OW). It is a component that grinds to a certain size.
  • CW combustible waste
  • OW organic waste
  • the shredder 111 unlike the conventional grinding method using only a single rotary cutter 113 or a pair of rotary cutters 113 arranged to mesh with each other, the fixed cutters 114a, 114b and the same With respect to the relative rotation, the crushing operation for the combustible waste (CW) is performed through the rotating cutter 113 alternately crossed.
  • CW combustible waste
  • Such a cutter structure taking into account the characteristics of the above combustible waste (CW), in particular, combustible waste (CW) of various properties while preventing the components from being damaged or damaged by being curled or wound on a rotating shaft during pulverization of waste such as a fabric structure This is to smoothly cut or grind to a set size.
  • CW combustible waste
  • the combustible waste (CW) which is crushed to a predetermined size through the crusher 111 and has an increased total surface area, reacts even though it has different physical properties from organic waste (OW) that has little hard components and is close to a viscous fluid state. It can be heat-treated together in a uniform level in the chamber 120.
  • a predetermined size in which combustible waste (CW) is crushed may be limited to a size of 3 cm to 10 cm.
  • the reason why the crushing size is specifically limited to the above range is that the heat treatment time is shortened by the reaction chamber 120, as well as the heat treatment by the reaction chamber 120 is reduced to a uniform level with organic waste (OW). ) To promote efficient operation and prevent entanglement in the heat treatment process so that optimal maintenance can be achieved.
  • OW organic waste
  • Crusher 111 according to an embodiment of the present invention, as shown in Figures 3a to 4, the shaft 112, a rotating cutter 113, a fixed cutter (114a, 114b) and includes a sorting and discharge unit
  • the combustible waste (CW) which is made of a structure and mixed in various types with irregular sizes and volumes as described above, is crushed to a size of 3 cm to 10 cm.
  • the shaft 112 is a cylindrical component which is disposed in the horizontal direction on the body frame 111a in which the upper opening is formed and rotates in the forward and reverse direction by a power means M such as a motor, and includes a plurality of rotating cutters 113 to be described later.
  • the space is provided spaced apart from the outer circumferential surface.
  • the body frame 111a is a bowl-shaped component made of a funnel shape with an open top portion, and the inclined surfaces inclined downward from both sides with respect to the shaft 112, respectively, are mounted inside the shaft 112 to be rotatably fixed. And at the bottom respectively.
  • the combustible waste (CW) introduced into the body frame (111a) due to the inclined upper inclined surface and the lower inclined surface is moved by its own weight to continuously contact the shaft 112 adjacent to the lower inclined surface (see FIG. 4).
  • the rotary cutter 113 is a component that crushes the combustible waste (CW), which is intersected adjacent to the fixed cutters 114a and 114b, which will be described later, and as shown in FIGS. 3A and 4, the first cutter 113a ) And the second cutter 113b.
  • CW combustible waste
  • the first cutter (113a) is composed of a plurality of components that are arranged in a row at equal intervals along the circumferential and longitudinal direction of the shaft 112, the second cutter (113b) is also composed of a plurality of adjacent to each other It is a component that is disposed to be protruding from the first cutter (113a) and the first cutter (113a).
  • the fixed cutter (114a, 114b) is installed on the upper and lower portions of the positions opposite to each other relative to the shaft 112, alternately crossing with respect to the rotating cutter 113 rotating relative to the shaft 112 and crushing operation
  • the uneven portion 114c having a shape complementary to the protruding shape of the rotary cutter 113 is repeatedly formed along the longitudinal direction of the shaft 112. Will be done.
  • the sorting and discharging unit is a component that allows discharge to the outside when combustible waste (CW) crushed step by step by the rotating cutter 113 and the fixed cutters 114a and 114b has a predetermined size. It may be detachably coupled to the lower end of the body frame (111a) consisting of a mesh structure of an arc surrounding the bottom of the 113 and the fixed cutter (114a, 114b).
  • CW combustible waste
  • the primary grinding (1) is when the combustible waste (CW) crushed through the concave-convex portion 114c, which alternately forms an empty space according to the rotation of the rotating cutter 113, becomes a size capable of falling downward. Until it is done repeatedly.
  • CW combustible waste
  • the rotating cutter 113 intersects the upper fixed cutter 114b with respect to the waste falling toward the sorting discharge unit through the uneven portion 114c according to the repeated primary grinding (1). This is due to crushing.
  • the sorting and discharging unit while receiving the dropped waste, guides the movement of the waste until the rotating rotary cutter 113, which rotates relative to the upper fixed cutter 114b, repeatedly induces secondary crushing (2). Is done.
  • the repetitive induction of the secondary crushing (2) through the sorting and discharging portion is made until the secondary crushed waste is discharged to the outside (3) through a mesh network having a predetermined size of holes (S200).
  • the separating and discharging part detachably coupled to the lower end of the body frame 111a is individually fabricated as a mesh network having various hole sizes of 3cm to 10cm to be used individually by selecting according to the mixed state, type, or properties of combustible waste (CW). It is desirable to be able to.
  • the second quantitative feeder 117 is a component provided to quantitatively provide combustible waste (CW) to the reaction chamber 120 to be described later, and the first quantitative feeder 116 described above ), it may be composed of a storage hopper (117a) and a screw conveyor (117b).
  • the storage hopper 117a is a component provided to temporarily store the combustible waste (CW) injected from above, and has an opening at the top so that the injected combustible waste (CW) is sequentially delivered to a screw conveyor (117b) to be described later. It will be made into a funnel shape.
  • the screw conveyor 117b is a component provided to discharge the organic waste OW sequentially delivered through the storage hopper 117a in a controlled amount in either direction of both ends of the first quantitative feeder 116, It may be formed of a rod-shaped shaft rod formed in the center and a screw blade formed in a spiral shape along the outer circumferential surface of the shaft rod.
  • the screw conveyor 117b is arranged in three rows at the bottom of the storage hopper 117a as shown in FIG. 5, so that a quantity of waste is supplied to one of both ends of the outside, i.e., the second quantitative feeder 117, by controlled rotation. Will be discharged.
  • the pair located on the outside of the screw conveyor 117b arranged in three rows serves to transmit the combustible waste (CW) inputted by being simultaneously rotated and controlled in one direction by the controller 160 to be described later.
  • the rotational speed of the pair located on the outside is rotationally controlled to be proportional to the amount of discharge to the combustible waste (CW), so that the quantitative delivery of the combustible waste (CW) can be made freely (S300).
  • the centrally located screw conveyor 117b is rotationally controlled in the other direction by the control unit 160, which will be described later, so that combustible waste CW is not entangled or aggregated in the process of being sent to one side.
  • the rotational speed of the screw conveyor 117b located at the center can be appropriately controlled in rotation in proportion to the degree of inclusion of a component that causes entanglement in the combustible waste (CW).
  • the waste can be freely transported by using the conveyor 118 as described above.
  • the conveyor 118 As described above.
  • the combustible waste (CW) is crushed to an appropriate size for heat treatment of the reaction chamber 120 so that it can be temporarily stored in the storage hopper 117a, and the reaction chamber 120 After the heat treatment is completed and the waste is taken out, the stored waste is quickly discharged by the set amount through the rotation control of the screw conveyor 117b arranged in three rows so that it can be sent or provided to the reaction chamber 120. .
  • the organic waste (OW) and the pre-combustible combustible waste (CW) through the waste supply unit 110 can be quickly and quantitatively provided each time the heat treatment of the reaction chamber 120 is completed without waiting time. The reduction and efficiency of the process can be achieved.
  • the second supply unit 110b may be formed to further include a metal removal unit 119a, a spray unit 119b, and the like.
  • the metal removal unit 119a is a metal foreign substance (1) that is indiscriminately mixed into the combustible waste (CW) and causes equipment failure or fire when crushing operation by the shredder 111 or heat treatment by the reaction chamber 120 is performed. , A secondary battery, etc.), and may be permanent magnets generating magnetic force or electromagnets generating magnetic force controlled by the controller 160.
  • the metal removal unit 119a is installed at the end (end) roller of the crusher 111 as shown in FIG. 1 to separate and remove the metal foreign matter contained in the combustible waste (CW) under the action of magnetic force.
  • the combustible waste (CW) may be installed on the upper and lower inclined surfaces, respectively, overlapping or independently from the inside of the crusher 111 to move by its own weight.
  • the spraying part 119b is a component provided to prevent or prevent fire and dust that may occur due to metal foreign substances, etc. with lubrication of crushing operation on combustible wastes (CW), as shown in FIG. 111) of the upper end, which is connected to the crusher 111, is installed on a conveyor 118 for transporting crushed waste, and may be formed of a plurality of nozzle bodies spraying coolant.
  • the spraying unit 119b is useful in the waste heat recovery unit 130 (water supply circulation unit 134), which will be described later in order to further promote or promote efficient use of resources constituting the treatment system 100 of the present invention.
  • Circulating water (W) being used is taken over and used as cooling water.
  • the separately prepared cooling water may be configured to spray using a pump or the like.
  • the reaction chamber 120 stirs wastes provided from the above-described first and second supply parts 110a and 110b, heats them with high-temperature and high-pressure steam, and then decompresses them to uniformly reduce organic wastes (OW) and combustible wastes (CW).
  • OW organic wastes
  • CW combustible wastes
  • the reaction chamber 120 according to an embodiment of the present invention, as shown in FIG. 1, the closed container 121, the stirrer 122 and the steam line 124, and the like.
  • the sealed container 121 is a container-shaped component having a closed structure, each having a supply port 121a receiving waste from the waste supply unit 110 and a discharge port 121b for discharging heat treated waste for subsequent processing.
  • each of the supply port (121a) and the discharge port (121b) can be opened and closed while maintaining a closed state through opening and closing means such as a commercialized solenoid valve that is operated and controlled by the control unit 160.
  • the sealed container 121 may be made of various shapes such as ellipsoids, spheres, rectangular parallelepipeds, etc., and maintains a high temperature and high pressure state inside, and is made of a material having low external emissivity to heat or other than the sealed container 121 A heat insulating member may be provided on the surface.
  • the stirrer 122 is basically rotated while passing through the sealed container 121 to promote heat treatment by mixing organic waste (OW) and combustible waste (CW) in the sealed container 121.
  • OW organic waste
  • CW combustible waste
  • the stirring shaft 123 having the hollow 123a formed therein is a unique configuration unique to the present invention that acts as a heat exchanger 132 within the sealed container 121 in a high temperature and high pressure state due to steam injected from the outside.
  • circulating water W that continuously flows in the hollow 123a by receiving heat from steam, which is a high heat source in the sealed container 121, is primarily heated.
  • the stirring shaft 123 is freely rotated in communication with a circulation pipe 134b, which will be described later by a power means M provided at one end to provide rotational force, and a rotational sealing joint coupled to both ends thereof It is possible to do this, and thus the circulating water (W) that is first heated while passing through the hollow 123a can continuously flow through the circulation pipes 134b installed throughout the treatment system 100 according to the present invention. .
  • the steam line 124 provides high-temperature and high-pressure steam generated in the steam supply source 124a to the closed container 121 through the steam pipe 124b (S410) to heat-treat the waste and to heat the steam used for the heat treatment. It is not a component that is prepared to be used as a heat source (S600) in the entire treatment system 100 according to the present invention, rather than emitting it to the outside atmosphere as it is.
  • the steam line 124 may include a steam supply source 124a, a steam pipe 124b, and the like.
  • the steam supply source 124a is a component that generates high-temperature and high-pressure steam under the control of the control unit 160, and may be implemented as a commercially available industrial boiler or steam generator.
  • the steam pipe 124b is a tube-shaped component installed to allow steam to flow from the steam supply source 124a, and the steam generated by communicating between the steam supply source 124a and the sealed container 121 seals the sealed container 121 )
  • the outlet steam pipe (124b) for discharging steam from the closed container 121, and other steam pipes (124b) installed throughout the treatment system 100 of the present invention It can be composed of.
  • each of the inlet-side steam pipe 124b and the outlet-side steam pipe 124b is controlled by opening and closing means, such as a commercialized solenoid valve, which is individually operated and controlled by the control unit 160, so that the flow of steam can be controlled. You can.
  • the temperature of the steam generated in the steam supply source 124a and provided to the sealed container 121 through the opening/closing amount adjustment of the inlet-side steam pipe 124b is approximately 220°C to 300°C, and the pressure of the steam is approximately 1.2 MPa to 2.5MPa.
  • the control unit 160 is a steam supply source (124a), the steam piping (124b) of the inlet and outlet side so that the temperature and pressure inside the sealed container 121 is approximately 220 °C to 300 °C, 1.2MPa to 2.5MPa by steam ) To control the opening and closing of each. (S410)
  • the heat treatment time by the reaction chamber 120 is adjusted according to the state of the waste to be treated, the ratio of components, and the like.
  • the control unit 160 After the heat treatment is performed by the reaction chamber 120 for a predetermined time, the control unit 160 instantaneously opens the outflow side steam pipe 124b and the like so that the steam inside the sealed container 121 is discharged within approximately 20 ⁇ 5 seconds. Through the operation control, the inside of the sealed container 121 is rapidly reduced.
  • wastes inputted through heat treatment through the reaction chamber 120 are hydrolyzed physically and chemically, expanded through a series of sudden pressure reductions, and reduced in molecular weight or crushed, thereby removing moisture contained in the wastes.
  • the primary drying for waste is made (S500).
  • the waste heat recovery unit 130 heat exchange between the circulating water (W) circulating through the hollow 123a-type stirring shaft 123 rotating in the reaction chamber 120 and the steam discharged from the reaction chamber 120 is performed below As a component provided for, as shown in FIG. 1, it may include a heat exchanger 132 and a water supply circulation unit 134.
  • the heat exchanger 132 is a component that recovers the residual heat from the steam discharged from the sealed container 121 and transfers it to the circulating water W discharged from the hollow 123a, and after heat treatment of the reaction chamber 120
  • the circulating water (W) that is first heated by the heat exchanger 132 receives heat from the rapidly discharged high-temperature steam (HS) after the heat treatment of the reaction chamber 120, and after being heated to the second temperature, the circulation pipe (134b) It is sent to the thermoelectric element unit 140 to be described later. (S610)
  • the water supply circulation unit 134 is discharged from the water supply source 134a, passes through the hollow 123a and the heat exchanger 132 through the circulation pipe 134b, and the circulated water W heated by the thermoelectric element unit 140 and As a component forcing to circulate through at least one of the drying units 150, as shown in FIG. 1, it may be configured to include a water supply source 134a and a circulation pipe 134b including a pump.
  • the water supply source 134a is a component that supplies water to be used as circulating water (W) under the control of the control unit 160, and draws water from a water supply tank that takes in external water or a water storage tank that stores water itself. It can be implemented as a pump.
  • the circulation pipe (134b) is a component of a tubular shape installed to allow the circulation water (W) to flow from the water supply source (134a), and the circulation water (W) by communicating between the water supply source (134a) and the stirring shaft (123) ) Is provided in the hollow (123a) inlet circulation pipe (134b), and the outlet circulating pipe (134b) for discharging the circulating water (W) from the hollow (123a) and the entire treatment system 100 of the present invention It may be composed of a steam pipe (124b) installed over.
  • the overall flow of the circulating water (W) through the circulation pipe (134b) can be made through the operation control of the pump by the control unit 160, the flow of the circulating water (W) for each process in sequence (flow rate or flow rate ) Control may be performed by opening and closing means, such as a commercialized solenoid valve, which is installed at a corresponding point and individually operated and controlled by the control unit 160.
  • opening and closing means such as a commercialized solenoid valve
  • the control unit 160 provides high-temperature and high-pressure steam to the sealed container 121 through the steam line 124 (S410), while the circulating water (W) through the water supply circulation unit 134 is hollow (123a) The control is performed so as to be circulated through (S420). (S400)
  • thermoelectric element unit 140 is a component utilizing the Seebeck effect in which electron flow, that is, electromotive force is generated due to a temperature difference applied to both surfaces of a closed circuit formed by bonding two types of metal plates or semiconductor plates, and exchanging heat Electrical energy is generated through a plurality of thermoelectric elements configured to be in thermal contact with at least one of the circulated water (W) and steam.
  • thermoelectric element unit 140 a plurality of thermoelectric elements formed by alternately depositing P-type and N-type semiconductors on a conductive polymer having a size of 4 cm x 4 cm to 20 cm x 20 cm And, it may be implemented as a circulation pipe (134b) or a steam pipe (124b) disposed to be in thermal contact with each thermoelectric element.
  • thermoelectric elements are arranged in parallel in rows and columns on a plane of a predetermined size, and the circulation pipe 134b or the steam pipe 124b is in thermal contact with each surface of each thermoelectric element. It can be bent in a zigzag form or a fan shape.
  • thermoelectric element in order to increase the temperature difference between both sides of the thermoelectric element, a heat sink may be installed on each of the opposite sides of the thermoelectric elements, or the thermoelectric elements may be disposed such that the relatively low-temperature surfaces and the opposite sides of the thermoelectric elements contact each other.
  • thermoelectric element unit 140 It can be produced by) can be used for operation of the processing system 100 of the present invention.
  • thermoelectric element unit 140 in order to enable the power generation by the thermoelectric element unit 140 to be selectively made as necessary, the steam pipe 124b and the circulation pipe 134b flowing into the thermoelectric element unit 140 will be described later on one side.
  • a separate bypass pipe and a switching valve bypassed to 150 may be installed and controlled by the control unit 160. Due to the control of the control unit 160, the heat exchanged steam and the circulating water (W) can be sent directly to the drying unit 150 without going through the thermoelectric element unit 140, so that the final drying of the waste can be achieved more quickly. There will be.
  • the drying unit 150 is a component provided to finally dry the waste provided in the first dried state through heat treatment of the reaction chamber 120, and the circulating water (W) exchanged with natural drying of the waste And drying through selective thermal contact with at least one of steam.
  • Drying unit 150 in a dry area free of natural light or air circulation, and a large area and waste transported from the reaction chamber 120 to the drying space It may be composed of a steam pipe 124b and a circulation pipe 134b disposed in a zigzag manner on the bottom surface of the drying space to contact.
  • the distal end of the steam pipe (124b) is excreted in a disconnected form from the steam supply source (124a) so that the lowered steam (CS) is discharged to the outside in the course of flowing the dry space, the distal end of the circulation pipe (134b) It is excreted in communication with the water supply source 134a so that it can be circulated through the water supply source 134a again to the hollow 123a.
  • the distal end of the steam pipe 124b may be changed to a circulation structure in communication with the steam supply source 124a, if necessary.
  • the drying unit 150 capable of selectively paralleling the drying means provided in such a manner, when natural light or air circulation is difficult depending on weather conditions, the steam pipe 124b and the circulation pipe arranged to contact the transported waste By utilizing the heat transfer by (134b) as much as possible, drying of the waste can be continuously performed without delay.
  • thermoelectric element unit 140 In addition, in a weather condition in which natural light or air circulation is best, the present invention minimizes heat transfer through the steam pipe 124b and the circulation pipe 134b, and heat transfer is concentrated in the production of electric energy by the above-described thermoelectric element unit 140. By operating the treatment system 100 according to it is possible to improve the efficient operation of drying and overall energy efficiency. (S700)
  • the drying unit 150 as described above performs overlapping drying until the moisture content contained in the waste becomes approximately 10 to 20%, and the final dried waste is then packed through the conveyor 118 or the like. 152) and can be packaged in a solid fuel form. (S800)
  • control unit 160 each component constituting the treatment system 100 according to the present invention, the waste supply unit 110, the reaction chamber 120, the waste heat recovery unit 130 and the drying unit 150 and the like wired or wireless
  • control unit 160 may be implemented as a modular control unit such as a micro controller unit (MCU), a microcomputer, or an PC.
  • a series of processes of the control unit 160 that controls each connected device according to a series of process sequences as shown in FIGS. 1 and 2 and monitors the processing status of the process is a modular control unit or a computer, etc. This is achieved by coding in programming languages such as C, C++, JAVA, machine language, etc. that can be read through.
  • control unit 160 The series of calculation and data processing algorithms of the control unit 160 can be easily performed in various ways and forms at the level of those skilled in the art, and detailed descriptions thereof will be omitted.
  • the organic waste (OW) and pre-treated combustible waste (CW) to be capable of simultaneous treatment are each integrated in the reaction chamber 120 in a quantitatively controlled state
  • the efficiency and versatility of waste treatment can be improved, and high-temperature steam (HS), which is a high heat source, flows to the thermoelectric element unit 140 or/and the drying unit 150 in a heat exchanged state with the circulating water (W), and is continuously
  • HS high-temperature steam
  • W circulating water
  • test analysis results (reception number: No. 16-0271) conducted by the Korea Institute of Energy Research on solid fuel samples generated by the treatment system 100 according to the present invention are shown in Table 1 below.
  • the waste solid fuel produced by the treatment system 100 according to the embodiment of the present invention is expected to show a uniform level of combustion efficiency due to a small difference in heat value between the high and low levels, and the waste solid fuel in the prior art Compared to the relatively high calorific value, it can be used as an efficient energy resource.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un système de traitement de déchets utilisant une source de chaleur à haute température à des fins diverses. Un système de traitement de déchets utilisant une source de chaleur à haute température à des fins diverses selon la présente invention est caractérisé en ce qu'il comprend : une partie d'alimentation en déchets qui comprend une première partie d'alimentation pour stocker et transférer des déchets organiques et une seconde partie d'alimentation pour broyer des déchets combustibles en une taille prédéfinie et transférer les déchets combustibles ; une chambre de réaction qui agite les déchets provenant de chacune des première et seconde parties d'alimentation et traite thermiquement les déchets avec de la vapeur à haute température et haute pression ; une partie de collecte de chaleur perdue dans laquelle de la chaleur est échangée entre l'eau de circulation qui circule à travers un arbre d'agitation creux tournant dans la chambre de réaction et la vapeur évacuée de la chambre de réaction ; une partie élément thermoélectrique qui est prévue pour être en contact thermique avec l'eau de circulation et/ou la vapeur qui ont subi un échange de chaleur et génère de l'énergie électrique ; et une partie de séchage qui sèche naturellement les déchets traités thermiquement dans la chambre de réaction et sèche également les déchets au moyen d'un contact thermique sélectif avec l'eau de circulation et/ou la vapeur qui ont subi un échange de chaleur. Selon la présente invention, chacune de la première partie d'alimentation pour stocker et transférer les déchets organiques et de la seconde partie d'alimentation pour broyer les déchets combustibles en la taille prédéfinie et transférer les déchets combustibles de telle sorte que les déchets combustibles puissent être traités simultanément avec les déchets organiques sont contrôlées quantitativement et intégrées à la chambre de réaction et ainsi la présente invention présente l'effet selon lequel l'efficacité de traitement des déchets et la polyvalence peuvent être améliorées.
PCT/KR2019/017792 2018-12-19 2019-12-16 Système de traitement de déchets utilisant une source de chaleur à haute température à des fins diverses WO2020130527A1 (fr)

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KR102222636B1 (ko) * 2020-07-23 2021-03-08 주식회사 모두스틸 폐기물자원 재활용장치

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