CN106701117A - Rotating packed bed pyrolysis furnace and domestic waste treatment system with same - Google Patents
Rotating packed bed pyrolysis furnace and domestic waste treatment system with same Download PDFInfo
- Publication number
- CN106701117A CN106701117A CN201611093992.2A CN201611093992A CN106701117A CN 106701117 A CN106701117 A CN 106701117A CN 201611093992 A CN201611093992 A CN 201611093992A CN 106701117 A CN106701117 A CN 106701117A
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- China
- Prior art keywords
- revolving bed
- stove
- bed pyrolysis
- standing
- pyrolysis oven
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/30—Other processes in rotary ovens or retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
Abstract
The invention discloses a rotating packed bed pyrolysis furnace and a domestic refuse treatment system with the same. The rotating packed bed pyrolysis furnace comprises an annular furnace chamber, a feed distribution furnace disk, a transmission device and an electrical heating device, wherein the annular furnace chamber is a space composed of an inner circumferential wall, an outer circumferential wall, a top wall and a bottom wall, and is divided into a feeding area, a drying area, a pyrolysis area and a discharge area; the feeding area is provided with a feed inlet; the pyrolysis area is provided with a high-temperature oil and gas outlet; the discharge area is provided with a slag discharge outlet; the feed distribution furnace disk can horizontally rotate and is located at the bottom part of the annular furnace chamber; the transmission device is arranged below the feed distribution furnace disk and connected with the feed distribution furnace disk to drive the feed distribution furnace disk to horizontally rotate; and the electrical heating device is arranged above the feed distribution furnace disk. The rotating packed bed pyrolysis furnace provided by the invention has high heating efficiency, simple structure and low energy consumption, can realize effective quantity-reducing treatment of domestic wastes, is friendly to the environment and is especially applicable to large-scale promotion.
Description
Technical field
The present invention relates to derived energy chemical field, specifically, the present invention relates to revolving bed pyrolysis oven and with the revolving bed
The domestic garbage treating system of pyrolysis oven.
Background technology
With it is economical develop rapidly, the continuous growth of population and the increasingly raising of living standards of the people, particularly most
The rapid growth of nearly express delivery, the yield of life in China rubbish is also sharply increased, and current Municipal Solid Waste in China is produced per year
Raw about 1.5 hundred million tons of amount, and also increase in the speed with 5% or so every year, cause very big burden, national big city to environment
In have 2/3 predicament for facing " garbage-surrounded city ".
The conventional landfill of current garbage disposal, composting mode have been absorbed in and have taken at a discount tired of a large amount of lands used, composting production
Border, and the mode of incineration treatment of garbage cannot break away from the problem of bioxin pollution all the time.
Thus, the means of current domestic rubbish disposal still have much room for improvement.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention
One purpose is to propose revolving bed pyrolysis oven and the domestic garbage treating system with the revolving bed pyrolysis oven.Revolving bed heat
Solution stove heat efficiency high, simple structure and energy consumption is relatively low effectively can be carried out house refuse using the revolving bed pyrolysis oven
Minimizing is processed, and environmentally friendly, is particularly well-suited to large-scale promotion.
In the first aspect of the present invention, the present invention proposes a kind of revolving bed pyrolysis oven.Embodiments in accordance with the present invention, should
Revolving bed pyrolysis oven includes：Ring-type furnace chamber, the space that the ring-type furnace chamber is made up of internal perisporium, periphery wall, roof, bottom wall,
The ring-type furnace chamber is divided into feed zone adjacent successively, dry section, pyrolysis zone and discharge zone, wherein, the feed zone have into
There are high-temperature oil gas to export for material mouth, the pyrolysis zone, and the discharge zone has slag-drip opening；Cloth stone or metal plate for standing a stove on as a precaution against fire, the cloth stone or metal plate for standing a stove on as a precaution against fire can
Horizontally rotate positioned at the bottom of the ring-type furnace chamber；Transmission device, the transmission device is arranged on the cloth stone or metal plate for standing a stove on as a precaution against fire lower section
And be connected with the cloth stone or metal plate for standing a stove on as a precaution against fire, to drive the cloth stone or metal plate for standing a stove on as a precaution against fire to horizontally rotate；Electric heater unit, electric heater unit is arranged on
The cloth stone or metal plate for standing a stove on as a precaution against fire top.
Thus, embodiments in accordance with the present invention, revolving bed pyrolysis oven ring-type stove is sent into by by pending house refuse
The feed zone in chamber, with the rotation of cloth stone or metal plate for standing a stove on as a precaution against fire lower section transmission device, pending house refuse sequentially passes through revolving bed pyrolysis
The dry section of ring shape furnace chamber and pyrolysis zone, after removing moisture through dry section drying, house refuse is carried out at pyrolysis in pyrolysis zone
Reason, obtains high-temperature oil gas and rubbish charcoal, and then high-temperature oil gas export discharge from the high-temperature oil gas of pyrolysis zone, and rubbish charcoal is from discharge zone
Slag-drip opening discharge；Meanwhile, revolving bed pyrolysis oven of the invention is dried by using electric heater unit to house refuse, heat
Solution treatment, significantly improves the efficiency of drying, pyrolysis processing, and complete anoxybiotic in processing procedure, is produced Wu bioxin, to ring
Border is friendly.
In addition, revolving bed pyrolysis oven according to the above embodiment of the present invention can also have following additional technical characteristic：
In some embodiments of the invention, the electric heater unit includes multiple electrically heated rods, the multiple electrical heating
Rod successively horizontal arrangement in the top of the cloth stone or metal plate for standing a stove on as a precaution against fire.Thus, it is possible to significantly improve house refuse is dried, at pyrolysis
The efficiency of reason.
In some embodiments of the invention, the electrically heated rod is 80~200mm apart from the distance of the cloth stone or metal plate for standing a stove on as a precaution against fire.
Thus, it is possible to further improve house refuse is dried, the efficiency of pyrolysis processing.
In some embodiments of the invention, there is the electric heater unit inner annular element and the inner annular element concentric to set
The outer ring put and the multiple electrically heated rods being connected between the inner annular element and the outer ring.
In some embodiments of the invention, the diameter of the inner annular element is identical with the inner edge diameter of the cloth stone or metal plate for standing a stove on as a precaution against fire,
The diameter of the outer ring is identical with the external profile diameter of the cloth stone or metal plate for standing a stove on as a precaution against fire.
In some embodiments of the invention, the multiple electrically heated rod be arranged on the inner annular element and the outer ring it
Between, and the axis of each electrically heated rod both passes through the center of circle of the inner annular element or the outer ring.
In some embodiments of the invention, the angle between every two adjacent electrically heated rods is identical.
In some embodiments of the invention, the angle between every two adjacent electrically heated rods is 15~30 °.
In some embodiments of the invention, the multiple electrically heated rod is 170mm apart from the distance of the cloth stone or metal plate for standing a stove on as a precaution against fire.
Thus, it is possible to further improve house refuse is dried, the efficiency of pyrolysis processing.
In the second aspect of the present invention, the present invention proposes a kind of domestic garbage treating system.Implementation of the invention
Example, the domestic rubbish disposal includes：Revolving bed pyrolysis oven, the revolving bed pyrolysis oven is the rotation according to the above embodiment of the present invention
Rotated bed pyrolysis oven, the revolving bed pyrolysis furnace feed inlet is life garbage inlet, and the slag-drip opening is exported for rubbish charcoal；Gasification dress
Put, the gasification installation has rubbish charcoal entrance and a gas exit, the rubbish of the rubbish charcoal entrance and the revolving bed pyrolysis oven
The outlet of rubbish charcoal is connected；Direct-combustion boiler, the direct-combustion boiler has fuel gas inlet, high-temperature flue gas outlet and steam outlet, described
Fuel gas inlet is connected with the high-temperature oil gas outlet of the revolving bed pyrolysis oven and the gas exit respectively；Wherein, the high temperature
Exhanst gas outlet and the steam outlet are connected with steam turbine power generating respectively, for generating electricity.
Thus, domestic garbage treating system according to embodiments of the present invention is by using revolving bed pyrolysis oven to house refuse
It is pyrolyzed, to obtain high-temperature oil gas and rubbish charcoal, rubbish charcoal is supplied after obtaining coal gas through gasification process to gasification installation,
Coal gas is supplied with high-temperature oil gas and is fully burnt to direct-combustion boiler, the high-temperature flue gas and vapor for obtaining, and then by high temperature cigarette
Gas is passed through steam turbine power generating, generates electricity and produces electric energy to be used for the heater in revolving bed pyrolysis oven, the system resource
Utilization rate is higher, and environmentally friendly.
In addition, domestic garbage treating system according to the above embodiment of the present invention can also have following additional technology special
Levy：
In some embodiments of the invention, the steam turbine power generating adds with the electricity in the revolving bed pyrolysis oven
Thermal is connected.Thus, it is possible to the electric energy that shown steam turbine power generating is produced is for the electricity in the revolving bed pyrolysis oven
Heater is used, so as to reduce the energy consumption of the revolving bed pyrolysis oven.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of revolving bed pyrolysis oven according to an embodiment of the invention；
Fig. 2 is the structural representation of the revolving bed pyrolysis oven according to further embodiment of the present invention；
Fig. 3 is the structural representation of heater in revolving bed pyrolysis oven according to an embodiment of the invention；
Fig. 4 is the structural representation of domestic garbage treating system according to an embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " on ", D score, " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outward ", " concentric ", " axial direction ", " radial direction ", " circumference " be based on
Orientation shown in the drawings or position relationship, are for only for ease of and describe of the invention and simplify description, rather than instruction or hint institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this hair
Bright limitation.
Additionally, in the description of the invention, " multiple " is meant that at least two, such as two, three etc., unless otherwise
It is clearly specific to limit.
In the present invention, unless otherwise clearly defined and limited, term " connected " should be interpreted broadly, for example, can be with
It is to be fixedly connected, or be detachably connected, or integrally；Can mechanically connect, or electrically connect；Can be straight
Connect connected, it is also possible to be indirectly connected to by intermediary, can be two element internals connection or two phase interactions of element
With relation, unless otherwise clearly restriction.For the ordinary skill in the art, on can understanding as the case may be
State term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the first aspect of the present invention, the present invention proposes a kind of revolving bed pyrolysis oven.Embodiments in accordance with the present invention, ginseng
Fig. 1 is examined, the revolving bed pyrolysis oven includes：Ring-type furnace chamber 100, cloth stone or metal plate for standing a stove on as a precaution against fire (not shown), transmission device (not shown) and electricity add
Thermal 200.Wherein, the space that ring-type furnace chamber 100 is made up of internal perisporium, periphery wall, roof, bottom wall, 100 points of ring-type furnace chamber
It is feed zone 110 adjacent successively, dry section 120, pyrolysis zone 130 and discharge zone 140, wherein, feed zone 110 has charging aperture
101, pyrolysis zone 130 has high-temperature oil gas outlet 102, and discharge zone has slag-drip opening 103；Cloth stone or metal plate for standing a stove on as a precaution against fire is located in which can horizontally rotate
The bottom of ring-type furnace chamber 100；Transmission device is arranged on cloth stone or metal plate for standing a stove on as a precaution against fire lower section and is connected with cloth stone or metal plate for standing a stove on as a precaution against fire, to drive cloth stone or metal plate for standing a stove on as a precaution against fire
Horizontally rotate；Electric heater unit 200 is arranged on cloth stone or metal plate for standing a stove on as a precaution against fire top.Revolving bed pyrolysis oven of the invention is filled by using electrical heating
Put house refuse is dried, pyrolysis processing, significantly improve the efficiency of drying, pyrolysis processing, and complete in processing procedure
Full anoxybiotic, produces Wu bioxin, environmentally friendly.
Revolving bed pyrolysis oven according to embodiments of the present invention is described in detail below, with reference to Fig. 1 and Fig. 2, the rotation
Bed pyrolysis oven includes：Ring-type furnace chamber 100, cloth stone or metal plate for standing a stove on as a precaution against fire (not shown), transmission device (not shown) and electric heater unit 200.
Embodiments in accordance with the present invention, the space that ring-type furnace chamber 100 is made up of internal perisporium, periphery wall, roof, bottom wall,
100 points of ring-type furnace chamber is feed zone 110 adjacent successively, dry section 120, pyrolysis zone 130 and discharge zone 140, wherein, feed zone
110 have charging aperture 101, and pyrolysis zone 130 has high-temperature oil gas outlet 102, and discharge zone has slag-drip opening 103.According to the present invention
Embodiment, house refuse enters revolving bed pyrolysis oven by after pretreatment by feed zone 110, with the rotation of cloth stone or metal plate for standing a stove on as a precaution against fire,
Pending house refuse sequentially passes through dry section 120 and the pyrolysis zone 130 of ring-type furnace chamber 100, in dry section 120, can be with
Effectively the house refuse for the treatment of is preheated, and is removed moisture therein, and then the house refuse for processing enters pyrolysis zone
130, pyrolysis produces high-temperature oil gas and rubbish charcoal, and high-temperature oil gas are discharged from the high-temperature oil gas outlet 102 of pyrolysis zone 130, rubbish charcoal
Discharged from the slag-drip opening 103 of discharge zone 140.
Embodiments in accordance with the present invention, can be by pending house refuse by batcher and belt feeding revolving bed heat
Stove is solved, and bulk inorganic matter therein is sorted out in course of conveying, such as rotary head, stone, big part glass metal product, thus,
The follow-up efficiency being pyrolyzed to house refuse in annular furnace chamber can be significantly improved.
Embodiments in accordance with the present invention, cloth stone or metal plate for standing a stove on as a precaution against fire can horizontally rotate positioned at the bottom of ring-type furnace chamber 100, thus, with
The rotation of cloth stone or metal plate for standing a stove on as a precaution against fire, cloth can be made to sequentially pass through the dry of ring-type furnace chamber 100 in the pending house refuse of cloth stone or metal plate for standing a stove on as a precaution against fire
Dry area 120, pyrolysis zone 130 and discharge zone 140, so as to complete the pyrolysis processing to house refuse.
Embodiments in accordance with the present invention, transmission device is arranged on cloth stone or metal plate for standing a stove on as a precaution against fire lower section and is connected with cloth stone or metal plate for standing a stove on as a precaution against fire, to drive
Dynamic cloth stone or metal plate for standing a stove on as a precaution against fire horizontally rotates.
Embodiments in accordance with the present invention, electric heater unit 200 is arranged on cloth stone or metal plate for standing a stove on as a precaution against fire top, and is suitable to cloth in cloth
The pending house refuse of stone or metal plate for standing a stove on as a precaution against fire is heated.Embodiments in accordance with the present invention, by adjusting the temperature of electric heater unit 200,
The temperature of dry section 120 can be made to be 300~500 DEG C, the temperature of pyrolysis zone 130 is 600~800 DEG C, it is possible thereby to effectively
Moisture in dry section 120 removes pending house refuse, so pyrolysis zone 130 by pending domestic garbage pyrolysis for height
Warm oil gas and rubbish charcoal.
Embodiments in accordance with the present invention, electric heater unit 200 includes multiple electrically heated rods 21, and multiple electrically heated rods 21 are successively
Horizontal arrangement is in the top of cloth stone or metal plate for standing a stove on as a precaution against fire, it is possible thereby to effectively be heated to pending house refuse.
Embodiments in accordance with the present invention, electrically heated rod 21 is 80~200mm apart from the distance of cloth stone or metal plate for standing a stove on as a precaution against fire.According to the present invention
Embodiment, inventor find, if the distance of electrically heated rod 21 and cloth stone or metal plate for standing a stove on as a precaution against fire is excessive, rate of heat transfer can be made substantially to drop
It is low, and can make that there is between the bed of material of pending house refuse larger thermograde, pyrolysis homogeneity is poor.
Embodiments in accordance with the present invention, as shown in figure 3, electric heater unit 200 has inner annular element 22 and inner annular element 22 with circle
The outer ring 23 of heart setting and the multiple electrically heated rods 21 being connected between inner annular element 22 and outer ring 23.
Embodiments in accordance with the present invention, the diameter of inner annular element 22 is identical with the inner edge diameter of cloth stone or metal plate for standing a stove on as a precaution against fire, outer ring 23
Diameter is identical with the external profile diameter of cloth stone or metal plate for standing a stove on as a precaution against fire.
Embodiments in accordance with the present invention, multiple electrically heated rods 21 are arranged between inner annular element 22 and outer ring 23, and each
The axis of electrically heated rod 21 both passes through the center of circle of inner annular element 22 or outer ring 23.
Embodiments in accordance with the present invention, the angle between every two adjacent electrically heated rods 21 is identical.
Embodiments in accordance with the present invention, the angle between every two adjacent electrically heated rods 21 is 15~30 °.
Embodiments in accordance with the present invention, multiple electrically heated rods 21 are 170mm apart from the distance of cloth stone or metal plate for standing a stove on as a precaution against fire, it is possible thereby to make
Electrically heated rod is optimal to the efficiency of heating surface of pending house refuse.
In the second aspect of the present invention, the present invention proposes a kind of domestic garbage treating system.Implementation of the invention
Example, with reference to Fig. 4, the domestic rubbish disposal includes：Revolving bed pyrolysis oven, gasification installation 300 and direct-combustion boiler 400.Wherein, rotate
Bed pyrolysis oven is the revolving bed pyrolysis oven according to the above embodiment of the present invention, and the charging aperture 101 of revolving bed pyrolysis oven is life rubbish
Rubbish entrance, slag-drip opening 103 is exported for rubbish charcoal；Gasification installation 300 has rubbish charcoal entrance 301 and gas exit 302, rubbish charcoal
Entrance 301 is connected with the rubbish charcoal outlet of revolving bed pyrolysis oven；Direct-combustion boiler 400 has fuel gas inlet 401, high-temperature flue gas outlet
402 and steam outlet 403, fuel gas inlet 401 exports 102 and gas exit with the high-temperature oil gas of revolving bed pyrolysis oven respectively
302 are connected；Wherein, high-temperature flue gas outlet 402 and steam outlet 403 are connected with steam turbine power generating 500 respectively, are used for
Generate electricity.
Domestic garbage treating system according to embodiments of the present invention is described in detail below, with reference to Fig. 4, the system bag
Include：Revolving bed pyrolysis oven, gasification installation 300 and direct-combustion boiler 400.
Embodiments in accordance with the present invention, revolving bed pyrolysis oven, gasification installation 300 and direct-combustion boiler 400.Wherein, revolving bed
Pyrolysis oven is the revolving bed pyrolysis oven of preceding embodiment of the present invention, and the charging aperture 101 of revolving bed pyrolysis oven is life garbage inlet,
Slag-drip opening 103 is exported for rubbish charcoal, and revolving bed pyrolysis oven is suitable to carry out pyrolysis processing to house refuse, to obtain high-temperature oil gas
With rubbish charcoal.
Embodiments in accordance with the present invention, with reference to Fig. 1~3, revolving bed pyrolysis oven includes：Ring-type furnace chamber 100, cloth stone or metal plate for standing a stove on as a precaution against fire,
Transmission device and electric heater unit 200.
Embodiments in accordance with the present invention, the space that ring-type furnace chamber 100 is made up of internal perisporium, periphery wall, roof, bottom wall,
100 points of ring-type furnace chamber is feed zone 110 adjacent successively, dry section 120, pyrolysis zone 130 and discharge zone 140, wherein, feed zone
110 have charging aperture 101, and pyrolysis zone 130 has high-temperature oil gas outlet 102, and discharge zone has slag-drip opening 103.According to the present invention
Embodiment, house refuse enters revolving bed pyrolysis oven by after pretreatment by feed zone 110, with the rotation of cloth stone or metal plate for standing a stove on as a precaution against fire,
Pending house refuse sequentially passes through dry section 120 and the pyrolysis zone 130 of ring-type furnace chamber 100, in dry section 120, can be with
Effectively the house refuse for the treatment of is preheated, and is removed moisture therein, and then the house refuse for processing enters pyrolysis zone
130, pyrolysis produces high-temperature oil gas and rubbish charcoal, and high-temperature oil gas are discharged from the high-temperature oil gas outlet 102 of pyrolysis zone 130, rubbish charcoal
Discharged from the slag-drip opening 103 of discharge zone 140.
Embodiments in accordance with the present invention, can be by pending house refuse by batcher and belt feeding revolving bed heat
Stove is solved, and bulk inorganic matter therein is sorted out in course of conveying, such as rotary head, stone, big part glass metal product, thus,
The follow-up efficiency being pyrolyzed to house refuse in annular furnace chamber can be significantly improved.
Embodiments in accordance with the present invention, cloth stone or metal plate for standing a stove on as a precaution against fire can horizontally rotate positioned at the bottom of ring-type furnace chamber 100, thus, with
The rotation of cloth stone or metal plate for standing a stove on as a precaution against fire, cloth can be made to sequentially pass through the dry of ring-type furnace chamber 100 in the pending house refuse of cloth stone or metal plate for standing a stove on as a precaution against fire
Dry area 120, pyrolysis zone 130 and discharge zone 140, so as to complete the pyrolysis processing to house refuse.
Embodiments in accordance with the present invention, transmission device is arranged on cloth stone or metal plate for standing a stove on as a precaution against fire lower section and is connected with cloth stone or metal plate for standing a stove on as a precaution against fire, to drive
Dynamic cloth stone or metal plate for standing a stove on as a precaution against fire horizontally rotates.
Embodiments in accordance with the present invention, electric heater unit 200 is arranged on cloth stone or metal plate for standing a stove on as a precaution against fire top, and is suitable to cloth in cloth
The pending house refuse of stone or metal plate for standing a stove on as a precaution against fire is heated.Embodiments in accordance with the present invention, by adjusting the temperature of electric heater unit 200,
The temperature of dry section 120 can be made to be 300~500 DEG C, the temperature of pyrolysis zone 130 is 600~800 DEG C, it is possible thereby to effectively
Moisture in dry section 120 removes pending house refuse, so pyrolysis zone 130 by pending domestic garbage pyrolysis for height
Warm oil gas and rubbish charcoal.
Embodiments in accordance with the present invention, electric heater unit 200 includes multiple electrically heated rods 21, and multiple electrically heated rods 21 are successively
Horizontal arrangement is in the top of cloth stone or metal plate for standing a stove on as a precaution against fire, it is possible thereby to effectively be heated to pending house refuse.
Embodiments in accordance with the present invention, electrically heated rod 21 is 80~200mm apart from the distance of cloth stone or metal plate for standing a stove on as a precaution against fire.According to the present invention
Embodiment, inventor find, if the distance of electrically heated rod 21 and cloth stone or metal plate for standing a stove on as a precaution against fire is excessive, rate of heat transfer can be made substantially to drop
It is low, and can make that there is between the bed of material of pending house refuse larger thermograde, pyrolysis homogeneity is poor.
Embodiments in accordance with the present invention, it is outer that electric heater unit 200 has that inner annular element 22 and the concentric of inner annular element 22 set
Ring 23 and the multiple electrically heated rods 21 being connected between inner annular element 22 and outer ring 23.
Embodiments in accordance with the present invention, the diameter of inner annular element 22 is identical with the inner edge diameter of cloth stone or metal plate for standing a stove on as a precaution against fire, outer ring 23
Diameter is identical with the external profile diameter of cloth stone or metal plate for standing a stove on as a precaution against fire.
Embodiments in accordance with the present invention, multiple electrically heated rods 21 are arranged between inner annular element 22 and outer ring 23, and each
The axis of electrically heated rod 21 both passes through the center of circle of inner annular element 22 or outer ring 23.
Embodiments in accordance with the present invention, the angle between every two adjacent electrically heated rods 21 is identical.
Embodiments in accordance with the present invention, the angle between every two adjacent electrically heated rods 21 is 15~30 °.
Embodiments in accordance with the present invention, multiple electrically heated rods 21 are 170mm apart from the distance of cloth stone or metal plate for standing a stove on as a precaution against fire, it is possible thereby to make
Electrically heated rod is optimal to the efficiency of heating surface of pending house refuse.
Embodiments in accordance with the present invention, gasification installation 300 has rubbish charcoal entrance 301 and gas exit 302, and rubbish charcoal enters
Mouth 301 is connected with the rubbish charcoal outlet 103 of revolving bed pyrolysis oven, and gasification installation 300 is suitable to the rubbish for obtaining domestic garbage pyrolysis
Rubbish charcoal carries out gasification process, to obtain coal gas.Specifically, rubbish charcoal can be sent into using sealing double helix discharging machine and gasifies
In device 300, the double helix for sealing double helix discharging machine is arranged side by side, and spiral is engaged, because rubbish carbonaceous ground is loose easily
In broken, by the stirring of double helix, squeezing action, the broken of rubbish charcoal can be completed while discharging, obtain being applied to gas
The raw material for carrying out gasification process is put in makeup.In gasification installation, rubbish charcoal is with water reaction generation based on carbon monoxide and hydrogen
Want the coal gas of composition.
Embodiments in accordance with the present invention, direct-combustion boiler 400 has fuel gas inlet 401, high-temperature flue gas outlet 402 and vapor
Outlet 403, fuel gas inlet 401 is connected with the high-temperature oil gas outlet 102 of revolving bed pyrolysis oven and gas exit 302 respectively, direct combustion
Boiler 400 is suitable in the high-temperature oil gas produced by the use of domestic garbage pyrolysis and gasification installation the coal gas for preparing as fuel gas
Burnt, to obtain high-temperature flue gas and vapor.Specifically, in the combustion chamber of direct-combustion boiler 400, domestic garbage pyrolysis
The coal gas prepared in the pyrolysis oil gas (temperature is 600~800 DEG C) and gasification installation 300 that obtain can fully burn, and produce
Raw 800~1000 DEG C of high-temperature flue gas, in combustion, vapor in high-temperature oil gas further heat absorption be warming up to 800~
1000 DEG C, and then, 800~1000 DEG C of high-temperature flue gas and the gaseous mixture of vapor enter steam turbine power generating 800, heat energy
The mechanical energy of turbine rotor rotation is converted into, drives synchronous generator rotation to produce electric energy.
Electric heater unit 200 in embodiments in accordance with the present invention, steam turbine power generating 500 and revolving bed pyrolysis oven
It is connected, thus, it is possible to the electric energy that will be produced in steam turbine power generating 500 is used for electric heater unit 200, so that electrical heating is filled
Putting 200 pairs of house refuses carries out pyrolysis processing.Embodiments in accordance with the present invention, the electric energy of generation in addition to heater 200 of powering,
Remaining is connected to the grid.
Thus, domestic garbage treating system according to embodiments of the present invention is by using revolving bed pyrolysis oven to house refuse
It is pyrolyzed, to obtain high-temperature oil gas and rubbish charcoal, rubbish charcoal is supplied after obtaining coal gas through gasification process to gasification installation,
Coal gas is supplied with high-temperature oil gas and is fully burnt to direct-combustion boiler, the high-temperature flue gas and vapor for obtaining, and then by high temperature cigarette
Gas is passed through steam turbine power generating, generates electricity and produces electric energy to be used for the heater in revolving bed pyrolysis oven, the system resource
Utilization rate is higher, and environmentally friendly.
Below with reference to specific embodiment, present invention is described, it is necessary to explanation, these embodiments are only description
Property, and the present invention is limited never in any form.
Embodiment 1
The house refuse wet basis for using moisture content 55wt% is raw material, and its composition is as shown in table 1：
The house refuse of table 1 is into being grouped into (wt%)
| Title | Fabric | Plastics | Paper | Wooden bamboo | Food waste | Dregs | Glass, metal | Amount to |
| Wet basis | 3.53 | 25.96 | 14.94 | 7.44 | 28.91 | 11.58 | 7.64 | 100 |
House refuse is sent to feeding device through induction system, and feeding device is through charging aperture to revolving bed pyrolysis oven cloth stone or metal plate for standing a stove on as a precaution against fire
Charging, sorts out bulk inorganic matter therein, such as brick, stone, big part glass metal product in course of conveying；
The main equipment of pyrolysis is the revolving bed pyrolysis oven of electrified heating rod, and it includes revolving bed pyrolysis oven, electrically heated rod,
And the auxiliary body such as cloth, discharging.Its furnace bottom is rotatable cloth stone or metal plate for standing a stove on as a precaution against fire, and electrically heated rod is arranged in annular furnace wall, and electricity adds
Hot pin provides refuse pyrolysis institute calorific requirement in the way of heat conduction, convection current, heat radiation, in whole revolving bed pyrolysis oven with air every
Absolutely.Revolving bed pyrolysis oven is divided into feed zone, dry section, pyrolysis zone and discharge zone, 400 DEG C of dry section temperature of charge is main to make
With being to be dried the moisture in rubbish, 700 DEG C of pyrolysis zone temperature is that rubbish completes pyrolysis main reaction region, and reaction generation is high
Warm oil gas and rubbish charcoal；Gas vent is set near pyrolysis zone at the top of body of heater, for collecting the high-temperature oil gas containing water vapour,
Rubbish charcoal is discharged from discharge zone；
The rubbish charcoal of generation is discharged and is sent into gasification installation using sealing double helix discharging machine, and double helix is arranged side by side,
Spiral is engaged, is carbonization because rubbish have passed through the organic matters such as pyrolytic reaction, plastics therein, fabric, wooden bamboo and be pyrolyzed
Thing, the carbide is different from crude waste, loose easily broken, by the stirring of double helix, squeezing action, can be in the same of discharging
When complete shattering process, formation is suitable to the raw material that gasification installation carries out gasification process；
Rubbish charcoal from revolving bed pyrolysis oven is stored through belt conveyor, disintegrating machine into hopper, and rubbish charcoal is by material
The self-conveyor feed feeding gasification furnace bottom cone section in orlop portion.Air and the mixing of the superheated steam from waste heat boiler are used as gas
Agent and fluidizing agent, gasification installation is entered from nozzle, fluidizes feed stock for blast furnace, and gas, solid two-phase occur violent mass transfer and heat transfer,
And there is combustion reaction and water gas reaction.Gasification temperature be 1100 DEG C, pyrolytic carbon be heated after fast pyrogenation produce tar, phenol and
Light oil etc., and it is cracked into small molecule under gasification installation bed hot conditions.Temperature is 900 DEG C of discharged producer gas through cyclone dust removal
Enter the further dedusting cooling of wash cooling tower after device, temperature of exit gas is down to 35 DEG C or so, and feeding gas holder is stored for future use, often
Ton rubbish can produce combustible gas 220Nm3, its composition and calorific value are as follows：
The combustible gas composition of table 2 and calorific value
| H2 | CO2 | O2 | N2 | CH4 | CO | C2H4 | Gas heating value (Kcal/Nm3) |
| 14.61 | 13.77 | 0.33 | 39.85 | 10.52 | 18.49 | 2.14 | 1752.34 |
The lime-ash produced after the gasification of rubbish charcoal is arranged in closed ash bucket through the spiral tapping machine of internal water cooling, is periodically discharged to bottom slag
Car, is sent out out-of-bounds, and residual residue is collected and does construction material or landfill, and level of residue is into the 10% of factory's rubbish.
650 DEG C of high-temperature oil gas from revolving bed pyrolysis oven are connected by pipeline with the combustion chamber of direct-combustion boiler, combustion chamber
Using the burner of particular design, pyrolysis combustion gas and pyrolysis oil can fully burn in combustion chamber, produce 900 DEG C of high-temperature flue gas,
Meanwhile, further heat absorption is warming up to 900 DEG C to the water vapour in high-temperature oil gas, then, 900 DEG C of combustion product gases and water vapour mixing
Gas enters waste heat boiler, and with the superheated steam that boiler feedwater heat exchange produces 300~500 DEG C, superheated steam is through stop valve, regulating valve
Into steam turbine, partial heat energy is converted to the mechanical energy of turbine rotor rotation, drives synchronous generator rotation to produce electric energy, produces
Raw electric energy part for revolving bed pyrolysis oven electric heater unit using being connected to the grid outward, rubbish per ton can generate electricity 238kWh；
Enter rotary air preheater through 400 DEG C of flue gases after residual heat boiler for exchanging heat, combustion chamber combustion air can be preheated
To 300 DEG C, because rotary air preheater uses ceramic honeycomb body material, with decay resistance is strong, wear-resistant, thermal capacity is big
The features such as, flue-gas temperature can be down to 80 DEG C, in the sensible heat and flue gas of abundant recovered flue gas while the latent heat of vaporization of steam, can
With substantial amounts of condensed water in recovered flue gas, condensed water is pooled in water collect tank by reclaiming pipe network, the recyclable condensation of rubbish per ton
Water 0.35t.It is CO because the high-temperature oil gas of complicated component produce the main component of flue gas in burning Indoor Combustion2And vapor,
After being exchanged heat through waste heat boiler and air preheater can after can directly qualified discharge, non-secondary pollution, traditional oils moisture defection product can be avoided
Raw a large amount of reluctant wastewater problems, while solve the problems, such as that refuse pyrolysis oil is difficult to process and utilizes, with good
Economic benefit and effects of energy saving and emission reduction.
Embodiment 2
The house refuse wet basis for using moisture content 45wt% is raw material, and its composition is as shown in table 3：
The house refuse of table 3 is into being grouped into (wt%)
| Title | Fabric | Plastics | Paper | Wooden bamboo | Food waste | Dregs | Glass, metal | Amount to |
| Wet basis | 5.12 | 17.83 | 15.67 | 9.35 | 34.16 | 8.71 | 9.16 | 100 |
House refuse is sent to feeding device through induction system, and feeding device is through charging aperture to revolving bed pyrolysis oven cloth stone or metal plate for standing a stove on as a precaution against fire
Charging, sorts out bulk inorganic matter therein, such as brick, stone, big part glass metal product in course of conveying；
The main equipment of pyrolysis is the revolving bed pyrolysis oven of electrified heating rod, and it includes revolving bed pyrolysis oven, electrically heated rod,
And the auxiliary body such as cloth, discharging.Its furnace bottom is rotatable cloth stone or metal plate for standing a stove on as a precaution against fire, and electrically heated rod is arranged in annular furnace wall, and electricity adds
Hot pin provides refuse pyrolysis institute calorific requirement in the way of heat conduction, convection current, heat radiation, in whole revolving bed pyrolysis oven with air every
Absolutely.Revolving bed pyrolysis oven is divided into feed zone, dry section, pyrolysis zone and discharge zone, 450 DEG C of dry section temperature of charge is main to make
With being to be dried the moisture in rubbish, 800 DEG C of pyrolysis zone temperature is that rubbish completes pyrolysis main reaction region, and reaction generation is high
Warm oil gas and rubbish charcoal；Gas vent is set near pyrolysis zone at the top of body of heater, for collecting the high-temperature oil gas containing water vapour,
Rubbish charcoal is discharged from discharge zone；
The rubbish charcoal of generation is discharged and is sent into gasification installation using sealing double helix discharging machine, and double helix is arranged side by side,
Spiral is engaged, is carbonization because rubbish have passed through the organic matters such as pyrolytic reaction, plastics therein, fabric, wooden bamboo and be pyrolyzed
Thing, the carbide is different from crude waste, loose easily broken, by the stirring of double helix, squeezing action, can be in the same of discharging
When complete shattering process, formation is suitable to the raw material that gasification installation carries out gasification process；
Rubbish charcoal from revolving bed pyrolysis oven is stored through belt conveyor, disintegrating machine into hopper, and rubbish charcoal is by material
The self-conveyor feed feeding gasification furnace bottom cone section in orlop portion.Air and the mixing of the superheated steam from waste heat boiler are used as gas
Agent and fluidizing agent, gasification installation is entered from nozzle, fluidizes feed stock for blast furnace, and gas, solid two-phase occur violent mass transfer and heat transfer,
And there is combustion reaction and water gas reaction.Gasification temperature be 1200 DEG C, pyrolytic carbon be heated after fast pyrogenation produce tar, phenol and
Light oil etc., and it is cracked into small molecule under gasification installation bed hot conditions.Temperature is that 1000 DEG C of discharged producer gas are removed through whirlwind
Enter the further dedusting cooling of wash cooling tower after dirt device, temperature of exit gas is down to 45 DEG C or so, and feeding gas holder is stored for future use,
Rubbish per ton can produce combustible gas 240Nm3, its composition and calorific value are as follows：
The combustible gas composition of table 2 and calorific value
| H2 | CO2 | O2 | N2 | CH4 | CO | C2H4 | Gas heating value (Kcal/Nm3) |
| 13.66 | 12.52 | 0.24 | 41.48 | 8.96 | 21.65 | 1.49 | 1905.21 |
The lime-ash produced after the gasification of rubbish charcoal is arranged in closed ash bucket through the spiral tapping machine of internal water cooling, is periodically discharged to bottom slag
Car, is sent out out-of-bounds, and residual residue is collected and does construction material or landfill, and level of residue is into the 12% of factory's rubbish.
750 DEG C of high-temperature oil gas from revolving bed pyrolysis oven are connected by pipeline with the combustion chamber of direct-combustion boiler, combustion chamber
Using the burner of particular design, pyrolysis combustion gas and pyrolysis oil can fully burn in combustion chamber, produce 1000 DEG C of high-temperature flue gas,
Meanwhile, further heat absorption is warming up to 1000 DEG C to the water vapour in high-temperature oil gas, and then, 1000 DEG C of combustion product gases and water vapour are mixed
Close gas and enter waste heat boiler, with the superheated steam that boiler feedwater heat exchange produces 300~500 DEG C, superheated steam is through stop valve, regulation
Valve enters steam turbine, and partial heat energy is converted to the mechanical energy of turbine rotor rotation, drives synchronous generator rotation to produce electric energy,
The electric energy part of generation for revolving bed pyrolysis oven electric heater unit using being connected to the grid outward, rubbish per ton can generate electricity 246kWh；
Enter rotary air preheater through 500 DEG C of flue gases after residual heat boiler for exchanging heat, combustion chamber combustion air can be preheated
To 400 DEG C, because rotary air preheater uses ceramic honeycomb body material, with decay resistance is strong, wear-resistant, thermal capacity is big
The features such as, flue-gas temperature can be down to 90 DEG C, in the sensible heat and flue gas of abundant recovered flue gas while the latent heat of vaporization of steam, can
With substantial amounts of condensed water in recovered flue gas, condensed water is pooled in water collect tank by reclaiming pipe network, the recyclable condensation of rubbish per ton
Water 0.28t.It is CO because the high-temperature oil gas of complicated component produce the main component of flue gas in burning Indoor Combustion2And vapor,
After being exchanged heat through waste heat boiler and air preheater can after can directly qualified discharge, non-secondary pollution, traditional oils moisture defection product can be avoided
Raw a large amount of reluctant wastewater problems, while solve the problems, such as that refuse pyrolysis oil is difficult to process and utilizes, with good
Economic benefit and effects of energy saving and emission reduction.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of revolving bed pyrolysis oven, it is characterised in that including：
Ring-type furnace chamber, the space that the ring-type furnace chamber is made up of internal perisporium, periphery wall, roof, bottom wall, the ring-type furnace chamber point
It is feed zone adjacent successively, dry section, pyrolysis zone and discharge zone, wherein, the feed zone has charging aperture, the pyrolysis zone
With high-temperature oil gas outlet, the discharge zone has slag-drip opening；
Cloth stone or metal plate for standing a stove on as a precaution against fire, the cloth stone or metal plate for standing a stove on as a precaution against fire can horizontally rotate positioned at the bottom of the ring-type furnace chamber；
Transmission device, the transmission device is arranged on the cloth stone or metal plate for standing a stove on as a precaution against fire lower section and is connected with the cloth stone or metal plate for standing a stove on as a precaution against fire, to drive
The cloth stone or metal plate for standing a stove on as a precaution against fire horizontally rotates；
Electric heater unit, electric heater unit is arranged on the cloth stone or metal plate for standing a stove on as a precaution against fire top.
2. revolving bed pyrolysis oven according to claim 1, it is characterised in that the electric heater unit includes multiple electrical heating
Rod, the multiple electrically heated rod successively horizontal arrangement in the top of the cloth stone or metal plate for standing a stove on as a precaution against fire.
3. revolving bed pyrolysis oven according to claim 2, it is characterised in that the electrically heated rod is apart from the cloth stone or metal plate for standing a stove on as a precaution against fire
Distance be 80~200mm.
4. revolving bed pyrolysis oven according to claim 1, it is characterised in that the electric heater unit have inner annular element and
The outer ring of the inner annular element concentric setting and the multiple electrically heated rods being connected between the inner annular element and the outer ring.
5. revolving bed pyrolysis oven according to claim 4, it is characterised in that the diameter of the inner annular element and the cloth stove
The inner edge diameter of disk is identical, and the diameter of the outer ring is identical with the external profile diameter of the cloth stone or metal plate for standing a stove on as a precaution against fire.
6. revolving bed pyrolysis oven according to claim 5, it is characterised in that the multiple electrically heated rod is arranged in described
Between ring and the outer ring, and the axis of each electrically heated rod both passes through the inner annular element or the outer ring
The center of circle.
7. revolving bed pyrolysis oven according to claim 6, it is characterised in that the folder between per two adjacent electrically heated rods
Angle is identical,
Optionally, the angle between every two adjacent electrically heated rods is 15~30 °.
8. revolving bed pyrolysis oven according to claim 7, it is characterised in that the multiple electrically heated rod is apart from the cloth
The distance of stone or metal plate for standing a stove on as a precaution against fire is 170mm.
9. a kind of domestic garbage treating system, it is characterised in that including：
Revolving bed pyrolysis oven, the revolving bed pyrolysis oven is the revolving bed pyrolysis oven described in any one of claim 1~8, described
Revolving bed pyrolysis furnace feed inlet is life garbage inlet, and the slag-drip opening is exported for rubbish charcoal；
Gasification installation, the gasification installation has rubbish charcoal entrance and gas exit, the rubbish charcoal entrance and the revolving bed
The rubbish charcoal outlet of pyrolysis oven is connected；
Direct-combustion boiler, the direct-combustion boiler has fuel gas inlet, high-temperature flue gas outlet and steam outlet, the fuel gas inlet point
Do not exported with the high-temperature oil gas of the revolving bed pyrolysis oven and the gas exit is connected；
Wherein, the high-temperature flue gas outlet and the steam outlet are connected with steam turbine power generating respectively, for generating electricity.
10. system according to claim 9, it is characterised in that the steam turbine power generating and revolving bed heat
Electric heater unit in solution stove is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093992.2A CN106701117A (en) | 2016-12-01 | 2016-12-01 | Rotating packed bed pyrolysis furnace and domestic waste treatment system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093992.2A CN106701117A (en) | 2016-12-01 | 2016-12-01 | Rotating packed bed pyrolysis furnace and domestic waste treatment system with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401766A (en) * | 2018-11-02 | 2019-03-01 | 湖北亚首生物质新能源科技有限公司 | Revolving bed pyrolysis installation and the method that greasy filth pyrolysis is carried out using it |
| CN109504409A (en) * | 2018-11-02 | 2019-03-22 | 湖北亚首生物质新能源科技有限公司 | Revolving bed pyrolysis installation and the method that greasy filth pyrolysis is carried out using it |
| CN113399432A (en) * | 2021-06-23 | 2021-09-17 | 华中科技大学 | Medical waste treatment system and method |
-
2016
- 2016-12-01 CN CN201611093992.2A patent/CN106701117A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401766A (en) * | 2018-11-02 | 2019-03-01 | 湖北亚首生物质新能源科技有限公司 | Revolving bed pyrolysis installation and the method that greasy filth pyrolysis is carried out using it |
| CN109504409A (en) * | 2018-11-02 | 2019-03-22 | 湖北亚首生物质新能源科技有限公司 | Revolving bed pyrolysis installation and the method that greasy filth pyrolysis is carried out using it |
| CN109401766B (en) * | 2018-11-02 | 2024-01-02 | 湖北亚首生物质新能源科技有限公司 | Rotary bed pyrolysis device and method for carrying out oil sludge pyrolysis by adopting same |
| CN109504409B (en) * | 2018-11-02 | 2024-01-02 | 北京鸿机装备科技有限公司 | Rotary bed pyrolysis device and method for carrying out oil sludge pyrolysis by adopting same |
| CN113399432A (en) * | 2021-06-23 | 2021-09-17 | 华中科技大学 | Medical waste treatment system and method |
| CN113399432B (en) * | 2021-06-23 | 2022-04-29 | 华中科技大学 | Medical waste treatment system and method |
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