CN110736332A - household garbage drying system and method - Google Patents

household garbage drying system and method Download PDF

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Publication number
CN110736332A
CN110736332A CN201911014009.7A CN201911014009A CN110736332A CN 110736332 A CN110736332 A CN 110736332A CN 201911014009 A CN201911014009 A CN 201911014009A CN 110736332 A CN110736332 A CN 110736332A
Authority
CN
China
Prior art keywords
gas
drying
garbage
spiral
dryer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911014009.7A
Other languages
Chinese (zh)
Inventor
龚佰勋
黎莉
张涉
倪彬
邓晨
韦彦秀
黄孝敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Longcheng High Tech Environmental Protection Co Ltd
Original Assignee
Shenzhen Longcheng High Tech Environmental Protection Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Longcheng High Tech Environmental Protection Co Ltd filed Critical Shenzhen Longcheng High Tech Environmental Protection Co Ltd
Priority to CN201911014009.7A priority Critical patent/CN110736332A/en
Publication of CN110736332A publication Critical patent/CN110736332A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00Apparatus in which the axial direction of the vortex is reversed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/04Agitating, stirring, or scraping devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28BSTEAM OR VAPOUR CONDENSERS
    • F28B1/00Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

The invention discloses household garbage drying systems and methods, belonging to the technical field of material drying, wherein the systems form a garbage channel by an internal cavity of a spiral dryer, form a drying heat source gas channel by sequentially connecting an air feeder, a mixing cooling device, a spiral dryer jacket, a central tube and an induced draft fan, and form a row of wet gas channels by sequentially connecting a spiral dryer, a cyclone dust collector, a moisture exhaust fan, a condenser and a condensate water tank.

Description

household garbage drying system and method
Technical Field
The invention relates to drying systems and methods for household garbage, and belongs to the technical field of material drying.
Background
The domestic garbage is dried by adopting a mode of natural drying by fermentation or roller drying at present, the former is mainly characterized by a garbage incineration plant, and the latter is mainly characterized by a small-sized pyrolysis gasification project with a secondary combustion chamber. Aiming at the drying treatment of the domestic garbage, at present, mature processes and equipment are not available at home and abroad.
The double-helix drying devices are disclosed for drying the household garbage, and have the advantages of large heat transfer coefficient, high drying efficiency, garbage applicability and the like by adopting a brand-new structural design.
Disclosure of Invention
The invention aims to provide household garbage drying systems and methods based on the defects of the prior art.
household garbage drying system and method are characterized by comprising a spiral dryer, an air feeder, a mixing cooling device, an induced draft fan, a cyclone dust collector, a moisture exhaust fan, a condenser and a condensate water tank.
The drying method of the household garbage drying systems is characterized by comprising the following steps of enabling wet garbage to enter a spiral dryer, completing the drying process under the pushing of a spiral and discharging dry garbage, enabling heat source gas of the dryer to be mixed gas of air and flue gas, enabling the air to be blown in by an air blower, enabling the flow of the flue gas and air to be adjusted by air , enabling the mixed gas and the wet garbage to be subjected to indirect heat exchange, enabling the mixed gas to be led out and discharged by an induced draft fan after the heat exchange is completed, enabling evaporated steam to be led out by a moisture exhaust fan, enabling the evaporated steam to enter a condenser to be condensed into water after dust removal is carried out by a cyclone dust collector, enabling non-condensed gas to be led into a.
Drawings
Fig. 1 is a schematic diagram of kinds of domestic garbage drying systems and methods, wherein 1 is a spiral dryer, 2 is a blower, 3 is a mixing cooling device, 4 is an induced draft fan, 5 is a cyclone dust collector, 6 is a moisture exhaust fan, 7 is a condenser, and 8 is a condensate water tank.
Detailed Description
The invention is further described in detail below with reference to the figures.
FIG. 1 is a schematic diagram of a drying system and method for household garbage, which comprises a spiral dryer 1, a blower 2, a mixing cooling device 3, an induced draft fan 4, a cyclone dust collector 5, a dehumidifying fan 6, a condenser 7 and a condensate water tank 8, wherein a garbage channel is formed by the inner cavity of the spiral dryer 1, a drying heat source gas channel is formed by sequentially connecting the blower 2, the mixing cooling device 3, a jacket and a central pipe of the spiral dryer 1 and the induced draft fan 4, the spiral dryer 1, the cyclone dust collector 5, the dehumidifying fan 6, the condenser 7 and the condensate water tank 8 are sequentially connected to form a dehumidifying gas channel, and the three channels of garbage, heat source gas and dehumidifying gas are coupled and connected in the spiral dryer to complete the heat transfer and mass transfer processes.
The spiral dryer adopts an indirect heat exchange mode, the mixing cooling device adopts a direct turbulent mixing mode of cold and hot gas, and the condenser can adopt a water-gas heat exchange or gas-gas heat exchange mode.
The working principle of the invention is as follows:
wet garbage enters from a feed port of a spiral dryer 1 and advances under the spiral pushing, an air feeder is started to blow air, the air and generator tail gas are mixed and cooled in a mixing and cooling device 3, the temperature and the flow of mixed gas are controlled by adjusting air on an air side and a smoke side, the mixed gas enters the spiral dryer 1 and is discharged after heat exchange with the wet garbage, the wet garbage is discharged from a discharge port after being dried, vapor generated by drying and evaporation is discharged from a moisture discharge port of the spiral dryer 1, after dust is removed by a cyclone dust remover 5, a moisture discharge fan 6 is introduced into a condenser 7 to be condensed into condensed water, non-condensed gas is introduced into a deodorization system to be treated, and the condensed water is collected by a condensed water tank and is discharged or recycled after sewage treatment.

Claims (3)

  1. The system and the method for drying the household garbage are characterized by comprising a spiral dryer, a blower, a mixed cooling device, an induced draft fan, a cyclone dust collector, a moisture exhaust fan, a condenser and a condensate water tank, wherein the dryer adopts a double-spiral indirect heat exchange mode, the mixed cooling device adopts a cold and hot gas direct turbulent flow mixing mode, and the condenser can adopt a water-gas heat exchange mode or a gas-gas heat exchange mode.
  2. 2. The kinds of domestic garbage drying system and method according to claim 1, wherein the process comprises feeding wet garbage from the inlet of the spiral dryer, forwarding the garbage under spiral propulsion, starting the blower to blow air, mixing the air with generator exhaust gas in the mixing cooling device to cool, controlling the temperature and flow rate of the mixed gas by adjusting the air on the air side and the flue gas side, feeding the mixed gas into the jacket of the spiral dryer and the central heating pipe, drying the mixed gas and wet garbage in the spiral dryer, and discharging the dried mixture from the outlet, discharging the vapor generated by drying and evaporation from the outlet of the spiral dryer, dedusting the vapor by the cyclone dust collector, introducing the non-condensed gas into the condenser to condense into condensed water, introducing the non-condensed gas into the dehumidification system for recycling, and discharging the condensed water after condensing and deodorizing.
  3. 3. The kinds of domestic garbage drying system and method according to claim 1, wherein the heat source is generator exhaust or other waste gas, greatly reducing energy consumption, the heat exchange form is indirect, the heat source gas is not in contact with garbage, water vapor and heat source gas can be discharged separately, simplifying processing technology.
CN201911014009.7A 2019-10-23 2019-10-23 household garbage drying system and method Pending CN110736332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911014009.7A CN110736332A (en) 2019-10-23 2019-10-23 household garbage drying system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911014009.7A CN110736332A (en) 2019-10-23 2019-10-23 household garbage drying system and method

Publications (1)

Publication Number Publication Date
CN110736332A true CN110736332A (en) 2020-01-31

Family

ID=69271079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911014009.7A Pending CN110736332A (en) 2019-10-23 2019-10-23 household garbage drying system and method

Country Status (1)

Country Link
CN (1) CN110736332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112013638A (en) * 2020-07-30 2020-12-01 国网山东省电力公司电力科学研究院 Garbage drying system and method utilizing flue gas waste heat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112013638A (en) * 2020-07-30 2020-12-01 国网山东省电力公司电力科学研究院 Garbage drying system and method utilizing flue gas waste heat

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