CN113513907A - Wet garbage drying device and wet garbage treatment system - Google Patents

Wet garbage drying device and wet garbage treatment system Download PDF

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Publication number
CN113513907A
CN113513907A CN202010280329.3A CN202010280329A CN113513907A CN 113513907 A CN113513907 A CN 113513907A CN 202010280329 A CN202010280329 A CN 202010280329A CN 113513907 A CN113513907 A CN 113513907A
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China
Prior art keywords
drying
bin
stage
air
wet
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Pending
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CN202010280329.3A
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Chinese (zh)
Inventor
王天皓
张振涛
孟祥文
张化福
杨俊玲
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Technical Institute of Physics and Chemistry of CAS
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Technical Institute of Physics and Chemistry of CAS
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Application filed by Technical Institute of Physics and Chemistry of CAS filed Critical Technical Institute of Physics and Chemistry of CAS
Priority to CN202010280329.3A priority Critical patent/CN113513907A/en
Publication of CN113513907A publication Critical patent/CN113513907A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/12—Microwaves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • 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
    • F26B2200/04—Garbage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to the technical field of garbage treatment, and provides a wet garbage drying device and a wet garbage treatment system. The wet garbage drying device comprises a drying bin, wherein a first conveying belt for conveying wet garbage is arranged in the drying bin, and the first conveying belt is provided with a vent hole; a heat pump drying mechanism is arranged on the outer side of the first side wall of the drying bin, and is communicated with the drying bin and used for providing circulating drying air into the drying bin; the wet garbage treatment system comprises a treatment bin, wherein a crushing bin, a sterilization bin and a wet garbage drying device are arranged in the treatment bin. The invention circularly dries, improves the drying efficiency, reduces the waste of resources, does not discharge odor and waste gas out of the drying bin, and protects the environment.

Description

Wet garbage drying device and wet garbage treatment system
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a wet garbage drying device and a wet garbage treatment system.
Background
The garbage classification treatment work is carried out in China, and food waste such as leftovers, bones, vegetable roots, leaves, fruit peels and the like in wet garbage can be converted into resources such as feed or fuel and the like through drying treatment due to high water content and complex components.
The prior drying technology adopts a fuel combustion device for drying, and has the problems of large carbon dioxide and harmful gas emission, resource shortage and heat pollution caused by waste heat.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a wet garbage drying device, which aims to solve the problem that the existing wet garbage drying device is easy to cause environmental pollution.
The invention also provides a wet garbage treatment system.
According to the embodiment of the first aspect of the invention, the wet garbage drying device comprises a drying bin, wherein a first conveyor belt for conveying wet garbage is arranged in the drying bin, and is provided with a vent hole; the outer side of the first side wall of the drying bin is provided with a heat pump drying mechanism, and the heat pump drying mechanism is communicated with the drying bin and used for providing circulating drying air into the drying bin.
According to the wet garbage drying device provided by the embodiment of the invention, the heat pump drying mechanism is arranged on one side wall of the drying bin, the drying mechanism is communicated with the drying bin and provides circulating drying air into the drying bin, and the drying and circulating drying of the wet garbage on the first conveyor belt are realized through the vent holes on the first conveyor belt, so that the drying efficiency is improved, the waste of resources is reduced, no odor and waste gas is discharged out of the drying bin, and the environment is protected.
According to one embodiment of the invention, the heat pump drying mechanism comprises an air supply channel and an air return channel, wherein the first end of the air supply channel is arranged on the lower side of the horizontal plane where the first conveyor belt is located and is communicated with the drying bin;
the first end of the air return channel is arranged on the upper side of the horizontal plane where the first conveyor belt is located and is communicated with the drying bin;
and the second end of the return air channel is communicated with the second end of the air supply channel.
According to one embodiment of the invention, a second-stage condenser and a first-stage condenser are sequentially arranged in the air supply channel along the air flowing direction, a first-stage evaporator and a second-stage evaporator are sequentially arranged in the air return channel along the air flowing direction, the first-stage condenser is connected with the first-stage evaporator in series, and the second-stage condenser is connected with the second-stage evaporator in series.
According to one embodiment of the invention, a first refrigerant is circulated between the first stage condenser and the first stage evaporator; and a second refrigerant circulates between the second-stage condenser and the second-stage evaporator.
According to one embodiment of the invention, a first-stage compressor is arranged on a connecting pipeline between the outlet of the first-stage condenser and the inlet of the first-stage evaporator, and a second-stage compressor is arranged on a connecting pipeline between the outlet of the second-stage condenser and the inlet of the second-stage evaporator.
According to one embodiment of the invention, the first end of the air supply channel is provided with an air supply fan, and the first end of the return air channel is provided with a return air fan.
According to one embodiment of the invention, the device further comprises a cooling water tower and a cooling coil, wherein a water outlet of the cooling water tower is connected with one end of the cooling coil, and the other end of the cooling coil is connected with a water inlet of the cooling water tower;
the cooling coil is arranged in the return air channel, and the cooling coil is arranged between the return air fan and the first-stage evaporator.
According to one embodiment of the invention, a first drain hole matched with the first-stage evaporator is arranged in the return air channel, and a second drain hole matched with the second-stage evaporator is arranged in the return air channel;
and a water baffle is arranged in the return air channel and is arranged at the downstream of the second drain hole along the air flowing direction in the return air channel.
According to the second aspect embodiment of the invention, the wet garbage treatment system comprises a treatment bin, wherein the treatment bin is internally provided with a crushing bin, a sterilization bin and the wet garbage drying device;
the top side of smashing the storehouse is equipped with puts in the mouth, be equipped with rubbing crusher and second conveyer belt in smashing the storehouse, the pan feeding mouth of rubbing crusher with put in the mouth and set up relatively, the discharge gate of rubbing crusher with the material loading end of second conveyer belt sets up relatively, second conveyer belt discharge end with the material loading end of first conveyer belt is connected, the discharge end of first conveyer belt with the sterilization storehouse is connected.
According to one embodiment of the invention, a third conveyor belt, a microwave generator and a storage tank are arranged in the sterilization bin, a feeding end of the third conveyor belt is connected with a discharging end of the first conveyor belt, and a discharging end of the third conveyor belt is connected with a feeding hole of the storage tank;
the microwave generator is arranged opposite to the third conveyor belt and used for performing microwave sterilization on the materials on the third conveyor belt.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a wet waste drying apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a wet garbage disposal system according to an embodiment of the present invention.
Reference numerals:
1: a throwing port; 2: a pulverizer; 3: a front section of the second conveyor belt; 4: a rear section of the second conveyor belt; 5: a first conveyor belt; 6: an air supply fan; 7: a return air fan; 8: a third conveyor belt; 9: a microwave generator; 11: a material storage tank; 12: a water pump; 13: a cooling water tower; 14: a second stage thermostatic expansion valve; 15: a second stage condenser; 16: a second stage compressor; 17: a first stage thermostatic expansion valve; 18: a first stage condenser; 19: a first stage compressor; 21: a drying bin; 24: a cooling coil; 25: a first stage evaporator; 26: a first drain hole; 27: a second stage evaporator; 28: a second drain hole; 29: a water baffle.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1, an embodiment of the present invention provides a wet garbage drying device, which includes a drying bin 21, a first conveyor belt 5 for conveying wet garbage is disposed in the drying bin 21, and the first conveyor belt 5 is provided with a vent; the outer side of the first side wall of the drying bin 21 is provided with a heat pump drying mechanism, and the heat pump drying mechanism is communicated with the drying bin 21 and used for providing circulating drying air into the drying bin 21. It can be understood that the drying chamber 21 is a relatively sealed structure, which effectively prevents the emission of odor and exhaust gas from the wet garbage. Be equipped with first conveyer belt 5 in dry storehouse 21 for carry wet rubbish, simultaneously, be equipped with the ventilation hole on the first conveyer belt 5, the ventilation hole evenly sets up the multirow along the length direction of first conveyer belt 5, when guaranteeing 5 structural support intensity of first conveyer belt, makes abundant air pass through the ventilation hole, and then improves the drying efficiency of wet rubbish. The direction of the arrow in fig. 1 is the direction of flow of the drying air.
Wherein, the heat pump drying mechanism sets up in the first lateral wall outside of drying storehouse 21 for provide circulation drying air in drying storehouse 21, realize going up wet rubbish to first conveyer belt 5 and carry out continuous drying. That is, the drying air provided by the heat pump drying mechanism flows in a circulating manner between the heat pump drying mechanism and the drying bin 21, and after dehumidifying and drying the wet garbage, the drying air enters the heat pump drying mechanism to be cooled and dehumidified, and then is conveyed into the drying bin 21 again to circularly dry the wet garbage.
In the process, no odor, waste gas and dry air are leaked, and the problems of air and environmental pollution are avoided. The heat pump drying mechanism is adopted to circularly provide hot drying air, so that the use of fuel resources is effectively reduced, the energy efficiency is improved, and the drying efficiency is improved. The heat pump drying mechanism only needs to consume a small amount of energy to prepare a large amount of heat energy, the closed drying cycle can recover the waste heat, the energy efficiency is high, and the energy-saving advantage is obvious; low-temperature drying can be realized under normal pressure, and the temperature control is accurate; the drying medium is environment-friendly, and the drying medium can be circulated in a closed manner without pollution caused by dust, volatile substances and peculiar smell discharged to the environment along with the drying waste gas.
According to the wet garbage drying device provided by the embodiment of the invention, the heat pump drying mechanism is arranged on one side wall of the drying bin 21, the drying mechanism is communicated with the drying bin 21 and provides circulating drying air for the drying bin 21, and the wet garbage on the first conveyor belt 5 is dried through the vent holes in the first conveyor belt 5, so that the drying efficiency is improved, the waste of resources is reduced, the circulating drying is realized, in addition, no odor and waste gas is discharged out of the drying bin, and the environment is protected.
In one embodiment of the invention, the heat pump drying mechanism comprises an air supply channel and an air return channel, wherein the first end of the air supply channel is arranged on the lower side of the horizontal plane of the first conveyor belt 5 and is communicated with the drying bin 21; the first end of the air return channel is arranged on the upper side of the horizontal plane where the first conveyor belt 5 is located and is communicated with the drying bin 21; the second end of the return air channel is communicated with the second end of the air supply channel. It can be understood that the air supply channel is communicated with the drying bin 21 to supply the drying air into the drying bin 21, and the air return channel is communicated with the drying bin 21 to recover the drying air which is used for dehumidifying and drying the wet garbage in the drying bin 21.
Further, the upside at first conveyer belt 5 place horizontal plane is located to the first end of return air passageway, and the downside at first conveyer belt 5 place horizontal plane is located to the first end of air supply passageway, and then realizes that the dry air that air supply passageway sent into in the dry storehouse 21 is all retrieved by the return air passageway through first conveyer belt 5 back as far as possible. It is worth to say that the width and length of the first conveyor belt 5 are as close as possible to the width and length of the drying bin, so as to increase the dehumidifying and drying area, fully utilize the drying air and improve the drying efficiency. The second end of the return air channel is communicated with the second end of the air supply channel, so that the drying air is recycled, and the drying air is prevented from being leaked to pollute the air.
In one embodiment of the present invention, a second-stage condenser 15 and a first-stage condenser 18 are sequentially disposed in the air supply channel along the air flowing direction, a first-stage evaporator 25 and a second-stage evaporator 27 are sequentially disposed in the air return channel along the air flowing direction, the first-stage condenser 18 is connected in series with the first-stage evaporator 25, and the second-stage condenser 15 is connected in series with the second-stage evaporator 27. It can be understood that the second-stage condenser 15 and the first-stage condenser 18 are sequentially arranged in the air supply channel along the flowing direction of the air in the air supply channel, and are used for heating the drying air into hot dry air and then introducing the hot dry air into the drying bin 21 to dehumidify and dry the wet garbage.
Wherein, the wet cold drying wind that produces after with wet rubbish heat exchange gets into the return air passageway, is equipped with first order evaporimeter 25 and second grade evaporimeter 27 along the air flow direction in proper order in the return air passageway, and first order evaporimeter 25 and second grade evaporimeter 27 take place the heat exchange with wet cold drying wind in proper order, dehumidify and heat wet cold drying wind.
Furthermore, the first-stage condenser 18 is connected with the first-stage evaporator 25 in series, and the second-stage condenser 15 is connected with the second-stage evaporator 27 in series, so that waste heat and waste heat are fully utilized, the heating efficiency of the system is improved, and the requirement of reasonable utilization of energy is met.
In one embodiment of the present invention, a first refrigerant is circulated between the first stage condenser 18 and the first stage evaporator 25; a second refrigerant circulates between the second-stage condenser 15 and the second-stage evaporator 27. It is to be noted that the first refrigerant is a high temperature grade refrigerant and the second refrigerant is a low temperature grade refrigerant, and it is understood that the heating temperature of the first stage condenser 18 is higher than the temperature of the second stage condenser 15, and the cooling temperature of the first stage evaporator 25 is lower than the temperature of the second stage evaporator 27.
In one embodiment of the invention, a first stage compressor 19 is provided in the connection between the outlet of the first stage condenser 18 and the inlet of the first stage evaporator 25, and a second stage compressor 16 is provided in the connection between the outlet of the second stage condenser 15 and the inlet of the second stage evaporator 27. It can be understood that the first-stage compressor 19 raises the low-pressure first refrigerant in the first-stage condenser 18 to a high pressure, and delivers the high-pressure first refrigerant to the first-stage evaporator 25, and the high-pressure first refrigerant flows back to the first-stage condenser 18 after being subjected to heat exchange and pressure reduction with the damp-heat dry air in the first-stage evaporator 25, and is subjected to heat exchange with the dehumidified dry air in the first-stage condenser 18 to raise the temperature of the dry air into hot dry air, so that the circulation is performed, and the utilization of waste heat is realized.
Further, the second-stage compressor 16 raises the low-pressure second refrigerant in the second-stage condenser 15 to a high pressure, and conveys the high-pressure second refrigerant into the second-stage evaporator 27, the low-pressure second refrigerant exchanges heat with the damp-heat dry air in the second-stage evaporator 27, is depressurized and then flows back into the second-stage condenser 15, exchanges heat with the dehumidified dry air in the second-stage condenser 15, and raises the temperature of the dry air into hot dry air, so that the circulation is realized, and the utilization of waste heat is realized.
In one example, a first stage thermostatic expansion valve 17 is provided on a connection line between an inlet of the first stage condenser 18 and an outlet of the first stage evaporator 25, and a second stage thermostatic expansion valve 14 is provided on a connection line between an inlet of the second stage condenser 15 and an outlet of the second stage evaporator 27. As will be appreciated, the first stage thermostatic expansion valve 17 is configured to control the opening of the expansion valve by the superheat of the gaseous first refrigerant exiting the first stage evaporator 25; the second stage thermostatic expansion valve 14 is used for controlling the opening degree of the expansion valve through the superheat degree of the gaseous second refrigerant at the outlet of the second stage evaporator 27, and plays a role in protecting the first stage condenser 18 and the second stage condenser 15.
In one example, a filter purge is provided in the connection between the first stage condenser 18 and the first stage evaporator 25 to filter purge the first refrigerant to prevent clogging of the fins of the first stage evaporator 25. A filtering and cleaning piece is arranged on a connecting pipeline between the second-stage condenser 15 and the second-stage evaporator 27 and used for filtering and cleaning the second refrigerant to prevent fins of the second-stage evaporator 27 from being blocked.
In one embodiment of the invention, the first end of the supply air channel is provided with a supply air fan 6 and the first end of the return air channel is provided with a return air fan 7. As can be understood, the supply fan 6 and the return fan 7 work in coordination to circulate the drying air among the drying compartment 21, the supply passage and the return passage, thereby providing circulation power. It should be noted that the fan blades of the supply fan 6 and the return fan 7 are made of high temperature resistant stainless steel material to prevent corrosion.
In one embodiment of the present invention, the present invention further comprises a cooling water tower 13 and a cooling coil 24, wherein a water outlet of the cooling water tower 13 is connected to one end of the cooling coil 24, and the other end of the cooling coil 24 is connected to a water inlet of the cooling water tower 13;
the cooling coil 24 is arranged in the return air channel, and the cooling coil 24 is arranged between the return air fan 7 and the first-stage evaporator 25. It will be appreciated that the cooling water in the cooling coil 24 is in circulating communication with the cooling tower 13 to provide continuous cooling and cooling of the cooling coil 24.
Further, in the return air passageway that cooling coil 24 located between return air fan 7 and the first order evaporimeter 25, the warm humid air of retrieving through return air fan 7 earlier through cooling coil 24 cooling, in the cooling tower 13 is sent into to the water in the cooling coil 24 heating up, water pump 12 provides hydrologic cycle power, and then with unnecessary heat dissipation in the system, make the steady operation of system.
In one embodiment of the present invention, a first drain hole 26 adapted to the first stage evaporator 25 is provided in the return air passage, and a second drain hole 28 adapted to the second stage evaporator 27 is provided in the return air passage;
a water baffle 29 is provided in the return air passage, and the water baffle 29 is provided downstream of the second drain hole 28 in the direction of air flow in the return air passage. As can be understood, the hot humid air is cooled by the cooling coil 24 to form saturated humid air, and the first-stage evaporator 25 exchanges heat with the saturated humid air to generate condensed water, which is discharged through the first drain hole 26; the second-stage evaporator 27 exchanges heat with the saturated humid air to generate condensed water, which is discharged through the second water discharge hole 28. The water baffle 29 is used to block the flow of the condensed water from the return air passage to the supply air passage. It should be noted that if the hot humid air is cooled by the cooling coil 24 and does not form saturated humid air, no condensed water is generated. In this embodiment, the first drain hole 26 and the second drain hole 28 are provided with plugs to prevent the dry air from leaking.
In one example, the condensed water is discharged from the first and second drain holes 26 and 28 and uniformly flows to the sewage treatment facility, a separation membrane is arranged in a water tank of the sewage treatment facility, the condensed water is purified by using a reverse osmosis technology, and then a free radical scavenger is added to purify the water to below BOD 80PPM, so that the direct discharge standard is achieved.
It is worth explaining, first conveyer belt 5 can adopt two-layer, three-layer and more number of layers conveyer belt, and the material falls to make material and hot-air fully contact under the multilayer conveyer belt, and drying effect is better, and multilayer conveyer belt structural style can lead to the windage increase, needs to select for use the bigger fan of wind pressure to come the adaptation.
The heat pump drying mechanism adopts closed circulation, drying medium air circularly flows in a closed system, only condensed water in the two-stage evaporator is discharged to the outside of the system, and no odor or waste gas is discharged. The heat pump system fully utilizes waste heat, improves the heating efficiency of the system and meets the requirement of reasonable utilization of energy.
The heat pump drying mechanism adopts a two-stage heat pump series connection mode, the pressure ratio of each stage can be reduced, the heating efficiency of each stage is improved, and the total heating efficiency and the dehumidification energy consumption ratio of the system are improved relative to a single stage. From the dry dehumidification operation condition, the dry later stage of closed, the material water content is less, and water is difficult to be detached, and the unit part can be through switching into the single-stage heat pump operation and carry out the dehumidification drying, and economic nature promotes, and the energy obtains rational distribution.
As shown in fig. 2, an embodiment of the present invention further provides a wet waste treatment system, which includes a treatment bin, wherein the treatment bin is provided with a pulverization bin, a sterilization bin and the above-mentioned wet waste drying device;
smash the top side in storehouse and be equipped with input mouth 1, smash the storehouse and be equipped with rubbing crusher 2 and second conveyer belt, rubbing crusher 2's pan feeding mouth sets up with input mouth 1 relatively, rubbing crusher 2's discharge gate sets up with the material loading end of second conveyer belt relatively, and second conveyer belt discharge end is connected with the material loading end of first conveyer belt 5, and the discharge end of first conveyer belt 5 is connected with the sterilization storehouse. It can be understood that wet rubbish gets into crushing storehouse by throwing in mouthful 1 on the top side of crushing storehouse to in falling into the rubbing crusher 2 in crushing storehouse, in this embodiment, rubbing crusher 2 adopts the biax rubbing crusher, smashes wet rubbish for strip or graininess, improves the gas permeability, in order to adapt to the belt drying.
Further, the second conveyor belt comprises a front section 3 of the second conveyor belt arranged horizontally and a rear section 4 of the second conveyor belt arranged obliquely in the vertical direction. The material loading end of anterior segment 3 of second conveyer belt sets up with the discharge gate of rubbing crusher 2 relatively for accept wet rubbish behind the crushing, the material loading end of the back end 4 of the anterior segment 3 of second conveyer belt is connected with the material loading end of the back end 4 of second conveyer belt, and the material loading end of the back end 4 of second conveyer belt and first conveyer belt 5 is connected, realizes the transport of the wet rubbish after smashing. The discharge end of the first conveyor belt 5 is connected with the sterilization bin, so that the dried garbage is conveyed to the sterilization bin.
It is worth to say that the crushing bin, the drying bin 21 and the sterilizing bin are connected in sequence and are relatively independently sealed to form a processing bin together.
In one embodiment of the invention, a third conveyor belt 8, a microwave generator 9 and a storage tank 11 are arranged in the sterilization bin, the feeding end of the third conveyor belt 8 is connected with the discharging end of the first conveyor belt 5, and the discharging end of the third conveyor belt 8 is connected with the feeding hole of the storage tank 11;
the microwave generator 9 is arranged opposite to the third conveyor belt 8 and is used for microwave sterilization of the materials on the third conveyor belt 8. It will be appreciated that the first conveyor 5 transports the dried waste to the third conveyor 8 and from the third conveyor 8 to the holding tank 11.
Further, in this embodiment, the microwave generator 9 is disposed opposite to the third conveyor belt 8, so that the microwaves emitted by the microwave generator 9 are parallel to the conveying plane where the third conveyor belt 8 is located, that is, the microwaves emitted by the microwave generator 9 vertically act on the dried garbage during conveying, so as to perform microwave sterilization. Microwave sterilization is a dual sterilization function of the thermal effect and the biological effect of an electromagnetic field, and has strong penetration capability, wide sterilization spectrum and short treatment time when used for treating dried materials.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims (10)

1. A wet garbage drying device is characterized by comprising a drying bin, wherein a first conveying belt for conveying wet garbage is arranged in the drying bin, and the first conveying belt is provided with a vent hole; the outer side of the first side wall of the drying bin is provided with a heat pump drying mechanism, and the heat pump drying mechanism is communicated with the drying bin and used for providing circulating drying air into the drying bin.
2. The wet garbage drying device according to claim 1, wherein the heat pump drying mechanism comprises an air supply channel and an air return channel, a first end of the air supply channel is arranged on the lower side of the horizontal plane where the first conveyor belt is located and is communicated with the drying bin;
the first end of the air return channel is arranged on the upper side of the horizontal plane where the first conveyor belt is located and is communicated with the drying bin;
and the second end of the return air channel is communicated with the second end of the air supply channel.
3. The wet refuse drying device according to claim 2, wherein a second-stage condenser and a first-stage condenser are sequentially arranged in the air supply channel along the air flowing direction, a first-stage evaporator and a second-stage evaporator are sequentially arranged in the air return channel along the air flowing direction, the first-stage condenser is connected with the first-stage evaporator in series, and the second-stage condenser is connected with the second-stage evaporator in series.
4. The wet waste drying device of claim 3, wherein a first refrigerant is circulated between the first stage condenser and the first stage evaporator; and a second refrigerant circulates between the second-stage condenser and the second-stage evaporator.
5. A wet refuse drying apparatus according to claim 4, characterized in that a first stage compressor is provided on a connecting line between the outlet of the first stage condenser and the inlet of the first stage evaporator, and a second stage compressor is provided on a connecting line between the outlet of the second stage condenser and the inlet of the second stage evaporator.
6. The wet waste drying device of claim 5, wherein the first end of the supply air channel is provided with a supply air fan, and the first end of the return air channel is provided with a return air fan.
7. The wet garbage drying device of claim 6, further comprising a cooling tower and a cooling coil, wherein a water outlet of the cooling tower is connected with one end of the cooling coil, and the other end of the cooling coil is connected with a water inlet of the cooling tower;
the cooling coil is arranged in the return air channel, and the cooling coil is arranged between the return air fan and the first-stage evaporator.
8. The wet refuse drying device according to claim 3, wherein a first drain hole adapted to the first-stage evaporator is provided in the return air passage, and a second drain hole adapted to the second-stage evaporator is provided in the return air passage;
and a water baffle is arranged in the return air channel and is arranged at the downstream of the second drain hole along the air flowing direction in the return air channel.
9. A wet waste treatment system comprising a treatment bin, wherein the treatment bin is internally provided with a crushing bin, a sterilizing bin and a wet waste drying device according to any one of claims 1 to 8;
the top side of smashing the storehouse is equipped with puts in the mouth, be equipped with rubbing crusher and second conveyer belt in smashing the storehouse, the pan feeding mouth of rubbing crusher with put in the mouth and set up relatively, the discharge gate of rubbing crusher with the material loading end of second conveyer belt sets up relatively, second conveyer belt discharge end with the material loading end of first conveyer belt is connected, the discharge end of first conveyer belt with the sterilization storehouse is connected.
10. The wet waste disposal system of claim 9, wherein a third conveyor belt, a microwave generator and a storage tank are disposed in the sterilization chamber, a feeding end of the third conveyor belt is connected to a discharging end of the first conveyor belt, and a discharging end of the third conveyor belt is connected to a feeding port of the storage tank;
the microwave generator is arranged opposite to the third conveyor belt and used for performing microwave sterilization on the materials on the third conveyor belt.
CN202010280329.3A 2020-04-10 2020-04-10 Wet garbage drying device and wet garbage treatment system Pending CN113513907A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202010280329.3A CN113513907A (en) 2020-04-10 2020-04-10 Wet garbage drying device and wet garbage treatment system

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CN113513907A true CN113513907A (en) 2021-10-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115265157A (en) * 2022-08-02 2022-11-01 威海盛泰园食品有限公司 Peanut kernel baking device and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115265157A (en) * 2022-08-02 2022-11-01 威海盛泰园食品有限公司 Peanut kernel baking device and using method thereof
CN115265157B (en) * 2022-08-02 2024-05-03 威海盛泰园食品有限公司 Peanut kernel baking device and application method thereof

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