CN104344689B - A kind of method of Hot-blast Heating house refuse transpiring moisture and drying unit thereof - Google Patents
A kind of method of Hot-blast Heating house refuse transpiring moisture and drying unit thereof Download PDFInfo
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- CN104344689B CN104344689B CN201410548253.2A CN201410548253A CN104344689B CN 104344689 B CN104344689 B CN 104344689B CN 201410548253 A CN201410548253 A CN 201410548253A CN 104344689 B CN104344689 B CN 104344689B
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- rotary kiln
- house refuse
- rubbish
- soft seal
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Abstract
The present invention relates to house refuse drying and processing field, method and drying unit thereof particularly to a kind of Hot-blast Heating house refuse transpiring moisture, the method is persistently to heat to house refuse, makes the temperature of house refuse be maintained between 100 DEG C 270 DEG C, to evaporate moisture therein；Drying unit, including rotary kiln, the length direction of described rotary kiln is provided with heater.The method is persistently to heat to house refuse, evaporates moisture therein, and the garbage energy obtaining drying is enough in gasification and makes combustion gas, solves and the rubbish do not dried is put into the problem that gasifier system combustion gas can not remain properly functioning.This drying unit both make use of the continuous rolling of rotary kiln, and it is the most homogeneous that house refuse can be dried after putting into；On the other hand the length direction along rotary kiln with the addition of heater, makes whole rotary kiln be in the state being persistently heated, and rubbish is constantly heated to evaporate the moisture contained in rubbish in rolling, makes rubbish progressively be dried.
Description
Technical field
The present invention relates to house refuse drying and processing field, in particular to a kind of hot blast
The method of heating house refuse transpiring moisture and drying unit thereof.
Background technology
Rubbish aqueous about 50%, calorific value presses 1000kcal/kg, takes equivalent proportion 0.15, i.e.
Gas-air amount is theoretical air requirement 15% sent into, namely rubbish institute carbon containing (C)
About the 15% of total amount burns at burner hearth naked light, produces CO2Gas heat release, for sequential reduction district
Thering is provided heat, about the 85% of rubbish institute carbon containing (C) total amount becomes carbide semicoke (as black
The grain of rice, is commonly called as semicoke), flow to reducing zone and CO with the revolution of rotary kiln2Gas reaction is raw
Become combustion gas.It follows that it is 1000kcal/kg × 15%=150 that rubbish discharges heat in stove
Kcal/kg, and aqueous about 50% i.e. 0.5kg, its water evaporation calorific requirement be 600kcal/kg ×
0.5kg=300kcal.Water evaporation power consumption 300kcal ＞ rubbish release heat 150kcal, therefore,
Directly the rubbish do not dried is put into gasifier system combustion gas, it is impossible to maintain and run.
Application No. 200810229585.9 discloses domestic waste and is dried pretreatment side
Method and device, use single drying machine to be dried rubbish, but so increase in this application
Having added the cost of operation, and treating capacity is little, energy consumption is big.
Application No. 200910075330.6 discloses and utilizes rubbish gas heating directly also
The method of reducing gases in former ferrum, with the addition of lump coal, moulded coal or coke during burning away the refuse
To increase the heat of burning, but so produce too many CO2Waste gas, is applied to combustion gas processed meaning
And gasify unsuccessfully.In like manner, when using the mode sending combustion air, gasification furnace maintains and runs more,
Also too many CO can be produced2Waste gas.
1 gasification furnace can be with gasification process house refuse 1000t/d, and wherein moisture is about 500t,
If the combustion gas containing water vapor 500t/d that gasification furnace is discharged, it is clear that cannot be properly functioning.Therefore,
Rubbish cannot be dried in gasification furnace.
At present, domestic and international rubbish is dried and is mainly used two ways, the drying heat of a kind of employing
Source ＞ 270 DEG C, but, plastics can dissolve 270 DEG C of temperatures above, rubbish can the group of being formed,
Occluding device makes drying failure；The another kind of drying thermal source ＜ 270 DEG C used, room temperature humidity
Rubbish send into dehydrator, the thermal source of dehydrator can be made to be rapidly decreased to less than 100 DEG C, moisture without
Method is evaporated, and dries unsuccessfully.Exactly because there is no garbage drier the most both at home and abroad, thus raw
Rubbish combustion gas of living tries to suffer defeat after defeat repeatly.
In view of this, the special proposition present invention.
Summary of the invention
The first object of the present invention is to provide a kind of Hot-blast Heating house refuse transpiring moisture
Method, persistently gives heat, makes the temperature of house refuse be maintained at 100 DEG C-270 DEG C house refuse
Between, to evaporate moisture therein, obtain the rubbish dried, be subsequently used for gasification and make
Combustion gas, to solve at present the rubbish do not dried to be put into gasifier system combustion gas, it is impossible to just maintaining
The problem often run.
The second object of the present invention is to provide a kind of drying unit, and this device is at rotary kiln
On the basis of improve further, both make use of the continuous rolling of rotary kiln, so that raw
It is the most homogeneous that rubbish alive can be dried after putting into；On the other hand along the length direction of rotary kiln
With the addition of heater, make whole rotary kiln be in the state being persistently heated so that it is interior rubbish
Rubbish is constantly heated to evaporate the moisture contained in rubbish in rolling, make rubbish progressively by
It is dried.
In order to realize the above-mentioned purpose of the present invention, spy by the following technical solutions:
A kind of method of Hot-blast Heating house refuse transpiring moisture, comprises the following steps:
House refuse is persistently given heat, makes the temperature of house refuse be maintained at 100 DEG C-270 DEG C
Between, to evaporate moisture therein.
The method of a kind of Hot-blast Heating house refuse transpiring moisture that the present invention provides, to life
Heat persistently given by rubbish, as heated house refuse in rotary kiln, arranges many along rotary kiln length
Individual heater, makes rubbish heated at different parts all energy of rotary kiln, so that raw
Rubbish of living can be dried moving to rotary kiln afterbody when.So make the temperature of house refuse
Degree can be maintained at more than 100 DEG C, to evaporate moisture therein, obtains the rubbish dried,
Then the garbage energy dried is enough in gasification and makes combustion gas, solves the rubbish will do not dried at present
Rubbish puts into gasifier system combustion gas, it is impossible to maintain properly functioning problem.
Preferably, percentage, the water content of the rubbish of described drying be 10% with
Under.The rubbish so dried can preferably be used for gasification and make combustion gas, at present will solve
Gasifier system combustion gas put into by the rubbish do not dried, it is impossible to maintain properly functioning problem.
Preferably, persistently produce to the gasification furnace that hot thermal source is combustion gas processed for house refuse
Slag be raw material.As: in rotary kiln, heat house refuse, the heater of rotary kiln
Be with gasifier system combustion gas produce slag as raw material, heater can be air stove etc..
Preferably, described house refuse is constantly rolled in heating process.House refuse is hankered adding
The constantly uniform heating of rolling, the most beneficially rubbish, the most beneficially moisture in rubbish is constantly steamed
Issue.
Present invention also offers the baking of the method implementing Hot-blast Heating house refuse transpiring moisture
Equipment for drying, including rotary kiln, the length direction of described rotary kiln is provided with heater.
The drying unit that the present invention provides is to change further on the basis of rotary kiln
Enter, both make use of the continuous rolling of rotary kiln, so that what house refuse can be dried after putting into
The most homogeneous；On the other hand the length direction along rotary kiln with the addition of heater, makes whole
Rotary kiln is in the state being persistently heated so that it is interior rubbish is constantly heated in rolling
Evaporate the moisture contained in rubbish, make rubbish progressively be dried.
Preferably, described heater include thermal source and be enclosed on described rotary kiln soft close
Envelope is by wind mechanism, and described thermal source is connected by pipeline by wind mechanism with described soft seal；
Described soft seal is included thermal insulation layer and soft close with described rotary kiln linear contact lay by wind mechanism
Sealing, described soft seal is had space by between wind mechanism and described rotary kiln, is used for being passed through institute
State the steam that thermal source provides.
Thermal source provides heat, it is provided that heat be transported to soft seal by wind mechanism through pipeline, soft
Seal and be could be arranged to be wrapped circumferentially around along rotary kiln by wind mechanism, or part covers rotary kiln；
Rotary kiln rotates, and soft seal is not rotated with the rotation of rotary kiln by wind mechanism, and soft seal is subject to
Wind mechanism is fixed by support, and soft seal is linear contact lay by wind mechanism and rotary kiln, at high temperature
Under can seal gas, soft seal, by there being space between wind mechanism and rotary kiln, is used for being passed through
The steam that thermal source provides.
Wherein, thermal source can be the equipment such as air stove, heat exchanger, it is also possible to for the heat reclaimed
Amount, the steam etc. produced such as the gasification furnace for burning away the refuse；It can also be several device one
Rise and use.Preferably, the thermal source of heater includes air stove.If selection air stove,
The slag that air stove produces with the gasification furnace of combustion gas processed is as raw material；Additionally, what air stove was discharged
Flue gas is less than 260 DEG C, is transported to the burner hearth of rotary kiln, and flue dust therein becomes the one of rubbish
Part, together with the steam that waste gas evaporates with rubbish, through pipeline flow-direction cooler.So
Both reclaim the heat of air stove, dispense again its flue gas produced of individual processing.If it is hot
The heat that wind furnace produces can not meet needs, it is also possible to adds heat exchanger or other heating
Device is given simultaneously and is carried heat by wind mechanism.
At 1 atmosphere pressure the water 1kg of 20 DEG C is heated as steam, needs hectic fever
Can 594.53kcal (heat of vaporization of 1kg water)；1kg water is heated to 100 DEG C, often heats increase
1 DEG C of heat energy 1kcal to be consumed (this is 1kg specific heat of water).1t rubbish water content is according to 50%
Calculating, dry to moisture content 10%, specific heat to calculate according to heating 500kg water, and vaporizes
Heat calculates according to 400kg water.Rubbish mean temperature is according to 20 DEG C of calculating.Then: dry 1t
Rubbish need consume heat energy: (80kcal/kg × 500kg+594.53kcal/kg × 400kg) ÷
7000kcal/kg mark coal=40kg marks coal.The present invention does thermal source without coal, but burns gasification
The slag that fire grate goes out provides thermal source as raw material.
The burning of gasifier system combustion gas is different from the phosphorus content of the slag that naked light burns, and naked light fires
Burning belongs to oxygen-enriched abundant burning, belongs to oxidizing atmosphere, and C+O occurs in stove2=CO2, naked light
The phosphorus content of the slag after burning is the least, about 3-5%；Gasification furnace wants output combustion gas, stove
Interior needs are carried out under reducing atmosphere, and carbon (C) cannot be with oxygen (O2) reaction, carbon
Namely can only carry out under the atmosphere of anoxia with carbon dioxide reaction, the reaction of generation is
C+CO2=2CO, belongs to reduction reaction, and this reaction exists saturation problem, namely exists
Boiler slag carbon content 24%, combustion gas are containing CO2Also it is when 24%, to reach balance (no longer reaction),
Therefore, the boiler slag carbon content discharged from gasification furnace is 24%.The slag that gasification furnace is discharged is used for
Combustion of Hot Air Furnace, the heat of generation is converted to hot-air seasoning rubbish, comprehensively make use of residual
The energy, make drying rubbish and combustion gas processed form complete supply chain, this supply chain more ring
Protect.
As: in order to preferably prevent distributing of heat in steam, soft seal is permissible by wind mechanism
It is set to four layers, as in figure 2 it is shown, be followed successively by the first heat-resisting steel layer 8, wear-resisting from top to bottom
Stratum reticulare 9, soft composite layer 10 and the second heat-resisting steel layer 11, wherein, soft composite layer
Use the soft material of high abrasion, such as: high wear-resistant rubber, high abrasion TPV material etc., soft
Composite layer and rotary kiln linear contact lay.The soft seal of this structure is prone to fixing by wind mechanism,
And it is durable.
Preferably, rotary kiln is horizontal installation, and the gradient of installation is 2-6%.So install
After, rubbish is put into the kiln hood of rotary kiln, with the revolution of rotary kiln, rubbish from kiln hood to kiln
Tail moves, and rubbish also constantly rolls with the rotation of rotary kiln, and rubbish moves at past kiln tail
During be constantly heated, as being heated to 40 DEG C by kiln hood, during moving toward kiln tail
Progressively it is heated to 60 DEG C, 80 DEG C, 100 DEG C, 120 DEG C etc., thus is constantly dried, pass through
Adjusting the temperature of the heater of rotary kiln, when making rubbish arrive kiln tail, rubbish is oven-dried.
Empirical tests, a length of 6-45m of the rotary kiln of use, a diameter of 1-5 of rotary kiln
M, the length direction at rotary kiln arranges a heater, the temperature of steam every 3-4m
Degree is not more than 270 DEG C, can well realize being oven-dried when rubbish arrives kiln tail, and temperature
Being not more than 270 DEG C, the plastics in heated rubbish will not be agglomerating, thus does not results in stifled
The phenomenon of plug equipment.Preferably, a length of 6-45m of described rotary kiln, described rotary kiln
A diameter of 1-5m, the length direction of described rotary kiln arranges one every 3-4m and adds hot charging
Putting, the temperature of described steam is not more than 270 DEG C.
Length according to rotary kiln and diameter, adjust different hot air temperature so that rubbish
It is oven-dried.Further, the temperature of described steam is 150-270 DEG C.
Preferably, described thermal source and described soft seal are provided with air-introduced machine by between wind mechanism,
The rotary kiln position that described soft seal layer covers is provided with multiple through hole.Air-introduced machine is by hot blast not
Disconnected it is incorporated into soft seal by between wind mechanism and rotary kiln, rotary kiln arranges multiple through hole,
So that hot blast is constantly blown in rotary kiln, make the rubbish in rotary kiln in constantly rolling
Air-blowing of being heated is moved, and significantly accelerates the rate of drying of rubbish.
Preferably, being provided with raising material unit in described rotary kiln, described raising material unit is for along institute
State rotary kiln inwall and be provided with multiple lifting bucket.Rubbish rolls with the rotation of rotary kiln, raises
The rubbish of rotary kiln is preferably disperseed by material device, and rubbish is constantly mentioned by lifting bucket
Raising again, soft seal is steamed by the hot blast step step by step that wind mechanism the is sent into water outlet that evaporates by heat
Gas, rubbish is dried faster.
Cooler that preferably, described drying unit also includes being sequentially connected with by pipeline,
Gas-liquid separator and foul smell decomposition box.
Steam and the waste gas of rotary kiln evaporation are first passed through cooler, after cooling by pipeline
Steam and waste gas are passed through gas-liquid separator, and gas-liquid separator separates goes out gas and liquid, liquid
Getting final product qualified discharge through simple process, isolated gas contains frowziness, and foul smell includes: ammonia
(NH3), trimethylamine (C3H9N), hydrogen sulfide (H2S), methanthiol (CH4S), first sulfur
Ether (C2H6S), in addition to the boiling point 37.3 DEG C of methyl sulfide, remaining the highest 7.6 DEG C of just boiling,
They evaporate with steam, obtain through gas-liquid separator separates after cooled device again, separate
The gas gone out pumps into foul smell decomposition box, and stink is converted into the nutrient substance of biological bacteria, stink zero
Discharge.Without the discharge of garbage leachate in whole processing procedure.
During Gai, foul smell decomposition box uses the commercially available foul smell decomposition box removing stink,
Can use deodorizer, or biological bacteria decomposition box, or vegetation water deodorization etc., such as: buy
The biological bacteria decomposition box of gloomy source great achievement waste odour-gas cleaning equipment Manufacturing Co., Ltd from Yangzhou, 25
Second can vent gas up to standard.
Compared with prior art, the invention have the benefit that
(1) by give house refuse persistently give heat by the way of, make house refuse continuous
Heated, the moisture that rubbish contains constantly is evaporated, and rubbish is oven-dried, very well
Solve existing because rubbish can not dry or asking because of the too high occluding device of temperature
Topic；
(2) rotary kiln is horizontal installation, and the gradient of installation is 2-6%, is put into back by rubbish
The kiln hood of rotary kiln, with the revolution of rotary kiln, rubbish moves to kiln tail from kiln hood, rubbish also with
The rotation of rotary kiln and constantly roll, rubbish is constantly heated during moving toward kiln tail,
Evaporate moisture therein, thus constantly dried, by adjusting the heater of rotary kiln
Temperature, make rubbish arrive kiln tail time, rubbish is oven-dried；
(3) on rotary kiln, interpolation soft seal, by wind mechanism, is well collected heat, is made
Rotary kiln is in rotation process, and rubbish is constantly heated, and soft seal is covered by wind mechanism
Rotary kiln on be provided with multiple through hole so that hot blast is constantly blown in rotary kiln, make
The air-blowing of being heated in constantly rolling of rubbish in rotary kiln is moved, and significantly accelerates the dry of rubbish
Dry speed；
(4) being provided with raising material unit in rotary kiln, rubbish turns in the rotation with rotary kiln
Preferably disperseed by raising material unit during rolling, further speeded up the drying rate of rubbish；
(5) drying unit also includes cooler, the gas-liquid separation being sequentially connected with by pipeline
Device and foul smell decomposition box, without garbage leachate and the discharge of pollutant in whole processing procedure；
(6) thermal source of heater includes air stove, and air stove is with the gasification of combustion gas processed
The slag that stove produces is raw material, and the slag that well make use of combustion gas processed to produce makes baking
Dry rubbish and combustion gas processed form complete supply chain, the more environmental protection of this supply chain.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical side of the prior art
Case, will make the accompanying drawing used required in detailed description of the invention or description of the prior art below
Introduce simply, it should be apparent that, the accompanying drawing in describing below is some enforcements of the present invention
Mode, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
The side of the Hot-blast Heating house refuse transpiring moisture that Fig. 1 provides for the embodiment of the present invention 1
The schematic diagram of the drying unit of method；
The soft seal that Fig. 2 provides for the present invention is by the generalized section of wind mechanism.
Reference: 1, kiln hood；2, soft seal is by wind mechanism；3, support；4, hot blast
Stove；5, cooler；6, gas-liquid separator；7, biological bacteria decomposition box；8, first is heat-resisting
Steel layer；9, wear-resisting stratum reticulare；10, soft composite layer；11, the second heat-resisting steel layer.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but this
Skilled person is it will be appreciated that the following example is merely to illustrate the present invention, and should not regard
For limiting the scope of the present invention.Unreceipted actual conditions person in embodiment, according to normal condition
Or the condition of manufacturer's suggestion is carried out.Instrument unreceipted production firm person, is permissible
Conventional products by commercially available acquisition.
Embodiment 1
As it is shown in figure 1, the horizontal rotary kiln that installs back, the gradient of installation is 2%, the revolution of selection
The a length of 6m of kiln, a diameter of 1m, the length direction of rotary kiln arranges one every 3m
Individual heater；
Heater includes air stove 4 with the soft seal being enclosed on described rotary kiln by blower fan
Structure 2, soft seal is included thermal insulation layer and the soft seal layer with rotary kiln linear contact lay by wind mechanism 2,
Soft seal is wrapped circumferentially around along rotary kiln by wind mechanism 2, and and rotary kiln between leave space,
Support 3 is used for fixing soft seal and is produced with the gasification furnace of combustion gas processed by wind mechanism 2, air stove 4
Raw slag is raw material, it is provided that steam be passed through soft seal by blower fan through air-introduced machine by pipeline
Structure 2, the rotary kiln position that soft seal is covered by wind mechanism 2 is provided with multiple through hole, hot blast
It is blown in rotary kiln, wherein, temperature 250-270 DEG C of steam, the flue gas that air stove produces
Being passed through in rotary kiln by pipeline, rotary kiln inwall is provided with multiple lifting bucket；
House refuse after broken sorting is transported to kiln hood 1 and is sent into by drawing-in devices such as conveyers
In rotary kiln, with the revolution of rotary kiln, rubbish moves to kiln tail from kiln hood, rotary kiln inwall
Rubbish is mentioned and raises by multiple lifting buckets of upper setting, is sent into by wind mechanism 2 by soft seal
Hot blast step step by step evaporate by heat out steam, rubbish is oven-dried；
Steam and the waste gas of rotary kiln evaporation are first passed through cooler 5, after cooling by pipeline
Steam and waste gas be passed through gas-liquid separator 6, gas-liquid separator 6 isolates gas and liquid,
Liquid gets final product qualified discharge through simple process, and isolated gas pumps into buys from Yangzhou gloomy source
The biological bacteria decomposition box 7 of great achievement waste odour-gas cleaning equipment Manufacturing Co., Ltd, stink is converted into
The nutrient substance of biological bacteria, gets final product vent gas up to standard, stink zero-emission in 25 seconds；
Without the discharge of garbage leachate in whole processing procedure, the rubbish of drying can be directly used for
Preparation combustion gas.
Embodiment 2
The horizontal rotary kiln that installs back, the gradient of installation is 4%, the rotary kiln of selection a length of
20m, a diameter of 5m, the length direction of rotary kiln arranges a heater every 4m；
Heater includes air stove, heat exchanger and the soft seal wind-engaging being wrapped on rotary kiln
Mechanism, soft seal is included thermal insulation layer and the soft seal layer with rotary kiln linear contact lay by wind mechanism,
Soft seal layer is wrapped circumferentially around along rotary kiln, and and rotary kiln between leave space, air stove with
The slag that the gasification furnace of combustion gas processed produces is raw material, the steam warp that air stove and heat exchanger produce
Air-introduced machine is passed through soft seal by wind mechanism, the revolution that soft seal is covered by wind mechanism by pipeline
Kiln position is provided with multiple through hole, and hot blast is blown in rotary kiln, and wherein, the temperature of steam is
200-250 DEG C, the flue gas that air stove produces is passed through in rotary kiln by pipeline, rotary kiln inwall
It is provided with multiple lifting bucket；
House refuse after broken sorting is transported to kiln hood and is sent into back by drawing-in devices such as conveyers
In rotary kiln, with the revolution of rotary kiln, rubbish moves to kiln tail from kiln hood, on rotary kiln inwall
Rubbish is mentioned and raises by the multiple lifting buckets arranged, the heat sent into by wind mechanism by soft seal
Wind step step by step evaporates by heat out steam, and rubbish is oven-dried；
Steam and the waste gas of rotary kiln evaporation are first passed through cooler, after cooling by pipeline
Steam and waste gas are passed through gas-liquid separator, and gas-liquid separator separates goes out gas and liquid, liquid
Getting final product qualified discharge through simple process, isolated gas pumps into buys from Yangzhou gloomy source great achievement
The biological bacteria decomposition box of waste odour-gas cleaning equipment Manufacturing Co., Ltd, stink is converted into biological bacteria
Nutrient substance, 25 seconds can vent gas up to standard, stink zero-emission；
Without the discharge of garbage leachate in whole processing procedure, the rubbish of drying can be directly used for
Preparation combustion gas.
Embodiment 3
The horizontal rotary kiln that installs back, the gradient of installation is 6%, the rotary kiln of selection a length of
45m, a diameter of 3m, the length direction of rotary kiln arranges a heater every 3m；
Heater includes that air stove and the soft seal that is enclosed on described rotary kiln are by blower fan
Structure, soft seal is included thermal insulation layer and the soft seal layer with rotary kiln linear contact lay by wind mechanism, soft
Sealant is wrapped circumferentially around along rotary kiln, and and rotary kiln between leave space, air stove with system
The slag that the gasification furnace of combustion gas produces is raw material, it is provided that steam led to by pipeline through air-introduced machine
Entering soft seal by wind mechanism, the rotary kiln position that soft seal is covered by wind mechanism is provided with multiple
Through hole, hot blast is blown in rotary kiln, wherein, and temperature 150-200 DEG C of steam, air stove
The flue gas produced is passed through in rotary kiln by pipeline, and rotary kiln inwall is provided with multiple lifting bucket；
House refuse after broken sorting is transported to kiln hood and is sent into back by drawing-in devices such as conveyers
In rotary kiln, with the revolution of rotary kiln, rubbish moves to kiln tail from kiln hood, on rotary kiln inwall
Rubbish is mentioned and raises by the multiple lifting buckets arranged, the heat sent into by wind mechanism by soft seal
Wind step step by step evaporates by heat out steam, and rubbish is oven-dried；
Steam and the waste gas of rotary kiln evaporation are first passed through cooler, after cooling by pipeline
Steam and waste gas are passed through gas-liquid separator, and gas-liquid separator separates goes out gas and liquid, liquid
Getting final product qualified discharge through simple process, isolated gas pumps into buys from Yangzhou gloomy source great achievement
The biological bacteria decomposition box of waste odour-gas cleaning equipment Manufacturing Co., Ltd, stink is converted into biological bacteria
Nutrient substance, 25 seconds can vent gas up to standard, stink zero-emission；
Without the discharge of garbage leachate in whole processing procedure, the rubbish of drying can be directly used for
Preparation combustion gas.
The method of the Hot-blast Heating house refuse transpiring moisture that above example provides is by giving
House refuse persistently gives the mode of heat, makes house refuse constantly be heated, the water that rubbish contains
Dividing and be constantly evaporated, rubbish is oven-dried, and well solves existing because rubbish can not
Dry or because of the problem of the too high occluding device of temperature.Concrete drying unit include rotary kiln,
Heater, cooler, gas-liquid separator and foul smell decomposition box.By horizontal for rotary kiln installation,
The gradient installed is 2-6%, and rubbish is put into the kiln hood of rotary kiln, with the revolution of rotary kiln,
Rubbish moves to kiln tail from kiln hood, and rubbish also constantly rolls with the rotation of rotary kiln, rubbish
Constantly heated by heater during moving toward kiln tail, evaporate moisture therein,
Thus constantly dried, by adjusting the temperature of the heater of rotary kiln, make rubbish arrive
During kiln tail, rubbish is oven-dried.Wherein, rotary kiln adds soft seal by wind mechanism, energy
Enough well collecting heat, make rotary kiln in rotation process, rubbish is constantly heated, and
And it is provided with multiple through hole, so that hot blast is not on the rotary kiln that covered by wind mechanism of soft seal
Disconnected it is blown in rotary kiln, makes the air-blowing of being heated in constantly rolling of the rubbish in rotary kiln move,
Significantly accelerate the rate of drying of rubbish；Additionally, be provided with raising material unit in rotary kiln,
Rubbish is preferably disperseed by raising material unit when rolling in the rotation with rotary kiln, enters one
Step accelerates the drying rate of rubbish.The drying unit that the present invention provides is in whole processing procedure
Middle without garbage leachate with the discharge of pollutant, safety non-pollution.
Although illustrate and describing the present invention with specific embodiment, but it will be appreciated that
May be made that without departing from the spirit and scope of the present invention many other change and
Amendment.It is, therefore, intended that include in the following claims belonging in the scope of the invention
All such changes and modifications.
Claims (4)
1. the method for a Hot-blast Heating house refuse transpiring moisture, it is characterised in that bag
Include following steps:
To house refuse persistently give heat, make the temperature of house refuse be maintained at 100 DEG C-270 DEG C it
Between, to evaporate moisture therein；
Percentage, the water content of the rubbish of drying is less than 10%；
The slag persistently produced to the gasification furnace that hot thermal source is combustion gas processed for house refuse is
Raw material；
The method of described Hot-blast Heating house refuse transpiring moisture is carried out by drying unit, described
Drying unit includes that rotary kiln, the length direction of described rotary kiln are provided with heater；
Rotary kiln is horizontal installation, and the gradient of installation is 2-6%；
The a length of 6-45m of described rotary kiln, a diameter of 1-5m of described rotary kiln, described
The length direction of rotary kiln arranges a heater every 3-4m, and the temperature of steam is
150-270℃；
Described heater includes thermal source with the soft seal being enclosed on described rotary kiln by blower fan
Structure, described thermal source is connected by pipeline by wind mechanism with described soft seal；
Described soft seal is included thermal insulation layer and soft close with described rotary kiln linear contact lay by wind mechanism
Sealing, described soft seal is had space by between wind mechanism and described rotary kiln, is used for being passed through described
The steam that thermal source provides；
Described thermal source and described soft seal by being provided with air-introduced machine between wind mechanism, described soft seal
The rotary kiln position that layer covers is provided with multiple through hole；
Cooler that described drying unit also includes being sequentially connected with by pipeline, gas-liquid separator and
Foul smell decomposition box.
The method of Hot-blast Heating house refuse transpiring moisture the most according to claim 1,
It is characterized in that, described house refuse is constantly rolled in heating process.
3. one kind is steamed according to the Hot-blast Heating house refuse described in any one of claim 1-2
The drying unit of the method flooded point, it is characterised in that include rotary kiln, described rotary kiln
Length direction is provided with heater；
Rotary kiln is horizontal installation, and the gradient of installation is 2-6%；
The a length of 6-45m of described rotary kiln, a diameter of 1-5m of described rotary kiln, described
The length direction of rotary kiln arranges a heater every 3-4m, and the temperature of described steam is
150-270℃；
Described heater includes thermal source with the soft seal being enclosed on described rotary kiln by blower fan
Structure, described thermal source is connected by pipeline by wind mechanism with described soft seal；
Described soft seal is included thermal insulation layer and soft close with described rotary kiln linear contact lay by wind mechanism
Sealing, described soft seal is had space by between wind mechanism and described rotary kiln, is used for being passed through described
The steam that thermal source provides；
Described thermal source and described soft seal by being provided with air-introduced machine between wind mechanism, described soft seal
The rotary kiln position that layer covers is provided with multiple through hole；
Cooler that described drying unit also includes being sequentially connected with by pipeline, gas-liquid separator and
Foul smell decomposition box.
Drying unit the most according to claim 3, it is characterised in that described revolution
Being provided with raising material unit in kiln, described raising material unit is for be provided with multiple along described rotary kiln inwall
Lifting bucket.
Priority Applications (1)
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| GB2485180B (en) * | 2010-11-04 | 2012-09-26 | Chinook Sciences Ltd | Improvements in waste processing |
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| CN1133965A (en) * | 1995-04-11 | 1996-10-23 | 拜尔公司 | Device for supplying gas to rotary kilns |
| US5779468A (en) * | 1995-04-11 | 1998-07-14 | Bayer Aktiengesellschaft | Device for supplying gas to rotary kilns |
| CN201032153Y (en) * | 2007-02-07 | 2008-03-05 | 史金麟 | Honeycomb grate incinerator |
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| CN101825391A (en) * | 2009-03-06 | 2010-09-08 | 南通天义环保能源设备有限公司 | Device for drying hydrous waste plastic |
| GB2485180B (en) * | 2010-11-04 | 2012-09-26 | Chinook Sciences Ltd | Improvements in waste processing |
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