CN106007285A - Municipal sludge treatment method and heat pump and solar energy coupling system for implementing method - Google Patents
Municipal sludge treatment method and heat pump and solar energy coupling system for implementing method Download PDFInfo
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- CN106007285A CN106007285A CN201610547946.9A CN201610547946A CN106007285A CN 106007285 A CN106007285 A CN 106007285A CN 201610547946 A CN201610547946 A CN 201610547946A CN 106007285 A CN106007285 A CN 106007285A
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- Prior art keywords
- heat pump
- heat
- solar energy
- sewage
- municipal sludge
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
- F24S23/31—Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention relates to the field of municipal sludge drying, in particular to a municipal sludge treatment method and a heat pump and solar energy coupling system for implementing the method. The municipal sludge treatment method comprises the steps that municipal sludge is dried, wherein heat used for drying comes from heat, collected by a wastewater source heat pump, of wastewater, heat collected by a gas source heat pump after waste gas generated in the wastewater treatment process is heated with solar energy and heat collected by solar vacuum pipes; the sludge is dried until the water content is 68-72%, closed fermentation is carried out, and fertilizer is obtained. The invention further provides the heat pump and solar energy coupling system for implementing the method. According to the municipal sludge treatment method and the heat pump and solar energy coupling system for implementing the method, energy is generated with the resources in a wastewater plant and solar energy, dried sludge is composted and turned into wealth, the obtained fertilizer is inorganic fertilizer and can be widely applied, and remarkable economic value is achieved.
Description
Technical field
The present invention relates to municipal sludge drying field, in particular to a kind of municipal sludge process side
Method and the heat pump-solar energy coupled system of enforcement the method.
Background technology
By the end of the year 2014, whole nation the planned city, county (abbreviation cities and towns) add up to build up sewage treatment plant
3717, sewage treatment capacity 1.57 billion cubic meters/day, relatively 2013 newly-increased about 800 ten thousand steres
/ sky.Sludge quantity as sewage disposal by-product is also sharply increasing, and according to statistics, current China produces per year
Up to 40,000,000 tons (being generally more than 98% with water content), the mud of the most about 80% is without properly for amount
Process.Secondary pollution can be caused to environment, wherein mud after entering environment without the appropriate mud processed
Moisture content causes cost of transportation increase, stacking big, the pressing waste landfill yard storage capacity of area etc. one compared with high meeting
Series of problems.
For reducing moisture percentage in sewage sludge further, current Sewage Plant mainly uses the method for sludge drying.Dirty
Mud drying technique is to use artificial heat, and its operation temperature (for mud granule) is typically larger than
100 DEG C, acted on by diafiltration or evaporation etc., from mud, remove major part water content thus reach the degree of depth
Dehydration (its moisture content can be controlled in less than 20%).Sludge drying is the process of a Net Energy expenditure,
Energy expenditure height, therefore, how the sludge drying that carries out of environmental protection and energy saving is to have problem to be solved.
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 municipal sludge processing method, and this technique collects dirt
The heat of water, waste gas and solar energy, this heat of collection, for the mummification of mud, saves the energy；
And the mud after mummification carries out compost, the fertilizer obtained is inorganic fertilizer, it is achieved that municipal sludge
Recycling treatment.
The second object of the present invention is to provide a kind of heat pump implementing described municipal sludge processing method
-solar energy coupled system, this device arranges simply, collects energy effective, it is easy to industrial applications.
In order to realize the above-mentioned purpose of the present invention, spy by the following technical solutions:
A kind of municipal sludge processing method, by municipal sludge drying, the heat that described mummification is used comes
Coming from sewage uses the waste gas produced in the heat of sewage source heat pump collection, sewage disposal process through too
The heat that sun is collected with heat and the solar energy vacuum tube of air supply heat pump collection after heating；
Sludge drying to water content is 68%-72%, and sealed fermenting obtains fertilizer.
The present invention utilizes Sewage Plant homegrown resource to carry out production capacity, specifically, extracts in waste gas, waste water
Low potential energy, is converted into high level heat, is applied in sludge drying, is substantially reduced mud drying process
Power consumption, reaches energy-conservation purpose.
Specifically, sewage is a kind of renewable heat resource containing abundant Lowlevel thermal energy, uses heat pump
This Lowlevel thermal energy is converted into high level heat, and utilizes this heat energy that mud in factory is carried out mummification,
Heat energy is utilized nearby.Not only the heat energy of sewage can utilize, the heat energy in the distributed waste gas of Sewage Plant
Also can utilize.Sewage Plant is in running, and each processing unit all can produce foul smell, waste gas
Processing and the most increasingly paid attention to by technical staff, the most more widespread practice is to add a cover, by air inducing
Power traction is to exhaust treatment system.And the present invention before exhaust-gas treatment by collect waste gas through solar energy liter
Temperature, then by heat pump techniques, this heat energy is applied to sludge drying, after the utilization of this technology also can reduce
The load of continuous odor treating device, and, solar energy provides energy as supplementary energy for Sewage Plant,
Safely cleaning.Additionally also setting up solar energy vacuum tube, the heat of collection is also simultaneously used for the mummification of mud.
The present invention utilizes heat pump-heliotechnics to couple institute's heat production can carry out drying and other treatment to mud, and mud is aqueous
Rate is substantially reduced, and whole process make use of the energy and the sun that Sewage Plant self runs off to greatest extent
The heat of energy, it is achieved that the clean energy-saving of mud drying process produces.
Further, the mud being cured to certain water content is carried out compost by the present invention, turns waste into wealth,
The fertilizer obtained is inorganic fertilizer, can extensively apply, and has significant economic worth.
For now, main research of technique point is to improve Solar use, and Fresnel Lenses is made
It is greatly improved the focusing of sunlight for a kind of solar energy condenser lens, improves solar energy utilization ratio with this.
Preferably, the thermal source heating described waste gas is mainly derived from Fresnel Lenses gathering sunlight collection
Heat.
Due to sewage complicated component and instability, the sewage of employing is usually through pretreated, to the greatest extent
So, owing to the internal structure of heat pump is the most complicated, not easy cleaning, therefore, the present invention is by sewage for pipe
First passing through centrifugal sewage heat exchanger to process, it solves well containing bigger float, granule or thing
The medium of body causes the situation that heat exchanger blocks, and avoids the cleaning taken time and effort simultaneously, and
The heat making waste water middle-low grade is fully applied.Preferably, described sewage first passes through centrifugal sewage heat change
Device processes, then uses sewage source heat pump to collect heat.
Compost is actual is exactly a kind of form of garbage stabilisation, need specific humidity, temperature and
Aeration condition, so that probiotics produces, makes Organic substance constantly be degraded and stablize, and produces a kind of suitable
It is suitable for the process of the product of Land_use change.Municipal sludge after drying and other treatment, then is carried out heap by the present invention
Fertile, it is achieved the recycling of mud, this technology can not only effectively process mud, moreover it is possible to is made into tool
There is the fertilizer of high added value, be truly realized the disposal of resources of garbage.
Experiment proves that, further, the temperature of fermentation is 15-25 DEG C, and the time of fermentation is 25-35
My god.After the fermentation of the certain time under this temperature conditions, the fertilizer obtained and inorganization fertilizer efficiency
Fruit is consistent.
Further, the fertilizer obtained after fermentation adds in the mud after mummification as additive, mixing
After ferment.
Containing probiotics in the fertilizer that fermentation obtains, add in mud, the fermentation speed of mud can be accelerated
Degree, shortens the fermentation time of fertilizer.
Further, mud is stirred by sweat the most up and down and the step smashed to pieces.This mistake
Journey is the process of " turning over a heap of manure or a compost heap and pile it up afresh ", by this process, fermentation can be made more abundant and uniform, and pass through
Of short duration aerobic processes, and increases the amplification of probiotics, promotes the quality of the fertilizer that fermentation obtains.
Present invention also offers the heat pump-solar energy coupled systemes of municipal sludge processing method described in enforcement
System, including: including: sewage source heat pump, exhaust gas source heat pump, solar energy vacuum tube, sludge drying fill
Put, installation for fermenting；
Described sewage source heat pump, exhaust gas source heat pump, solar energy vacuum tube fill with described sludge drying respectively
Put connection；
Described mud drying device is connected with described installation for fermenting.
Heat pump-solar energy the coupled systemes of the municipal sludge processing method described in enforcement that the present invention provides
System, sets gradually each device, simple, beneficially efficiently the carrying out of sludge handling process.
Wherein, mud drying device typically uses drying baker.
Further, described heat pump-solar energy coupled system also includes gas collecting apparatus and Fresnel Lenses,
The energy that described Fresnel Lenses is collected is the heating of gas in described gas collecting apparatus, and described gas collection fills
Put and be connected with described exhaust gas source heat pump.
Further, described heat pump-solar energy coupled system also includes centrifugal sewage heat exchanger, described from
Heart sewage heat exchanger is connected with described sewage source heat pump.I.e. sewage first passes through the process of centrifugal sewage heat exchanger,
Enter back into sewage source heat pump, solve Jie containing bigger float, granule or object the most well
Matter causes the situation that sewage source heat pump blocks, and avoids the cleaning taken time and effort simultaneously, and makes
The heat of waste water middle-low grade is fully applied.
Further, described installation for fermenting includes the first fermentation cabin and the second fermentation cabin.
First fermentation cabin and the second fermentation cabin, will switch once by mud in two fermentation cabin, it is achieved
The step stirred up and down and smash to pieces of mud.
Be furnished with on the downside of drying baker in the present invention heat pump heat distribution system, expansion valve, cold-producing medium, blower fan with
And pipeline, all there is airduct to be connected between heat pump with drying baker, airduct is provided with volume damper,
Being provided with air flow sensor in heat pump, air flow sensor is all connected with controller with volume damper；
It is additionally provided with the Temperature Humidity Sensor to drying baker on controller, can come according to the humiture in drying baker
Regulate the air quantity on each system airduct so that under conditions of drying system is in closed circulation, not with
External environment is connected.
Compared with prior art, the invention have the benefit that
(1) on the basis of sewage treatment plant is existing, the coupling of heat pump-heliotechnics is applied to sewage,
The thermal energy collecting of waste gas the municipal sludge producing sewage treatment plant carry out drying and other treatment, it is achieved that energy
Source utilizes nearby, is to realize the effective way that integrated wastewater utilizes；After mummification, mud carries out compost again,
Obtained fertilizer is similar to inorganic fertilizer, it is achieved that the disposal of resources of garbage.
(2) water outlet after the waste water i.e. second pond discharged after Sewage Plant is processed by sewage source heat pump carries
Take its low temperature heat energy, by sewage source heat pump unit, be promoted to high temperature heat and be used for sludge drying,
The secondary being achieved in sewage utilizes, and turns waste into wealth, and improves the utilization rate of resource.
(3) each stage of sewage treatment plant can produce substantial amounts of waste gas, and waste gas can distribute stench,
Can have undesirable effect the resident of staff and surrounding, whole sewage disposal is produced by the present invention
Gas sampling gets up, and utilizes Fresnel Lenses more effectively direct light and the scattered light of sunlight to be filled
Divide and utilize, improve capacity usage ratio, gas is heated, then gas is utilized air source heat as thermal source
Its low level heat energy collected by pump, by waste gas Appropriate application, and reduces the load of follow-up odor removal,
Reach the purpose of pretreatment.
(4) on the one hand by tradition greenhouse dry technology, in conjunction with the development of automatic technology in the present age,
Use this clean energy resource of solar energy as the portion of energy source of sludge drying.
(5) sludge composting technology is constantly to be degraded by the Organic substance of mud and stablize, the fertilizer prepared
Material is similar to inorganic fertilizer, can extensively apply, it is achieved that the recycling treatment of mud.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described.
The schematic diagram of the municipal sludge processing method that Fig. 1 provides for the present invention.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but this area skill
Art personnel are it will be appreciated that the following example is merely to illustrate the present invention, and are not construed as limiting the present invention
Scope.Unreceipted actual conditions person in embodiment, the condition advised according to normal condition or manufacturer
Carry out.Agents useful for same or instrument unreceipted production firm person, being can be by commercially available purchase acquisition
Conventional products.
A kind of municipal sludge processing method, by municipal sludge drying, the heat that described mummification is used comes
Coming from sewage uses the waste gas produced in the heat of sewage source heat pump collection, sewage disposal process through too
The heat that sun is collected with heat and the solar energy vacuum tube of air supply heat pump collection after heating；
Sludge drying to water content is 68%-72%, and sealed fermenting obtains fertilizer.
1, the heat that sewage source heat pump is collected
The main operational principle of sewage source heat pump is as follows:
By sewage source heat pump compressor assembly, consume a small amount of electric energy, in the winter time being stored in water
Lowlevel thermal energy " extracts " out, for user's heat supply, then indoor heat " is extracted " summer
Come, be discharged in water, thus reduce room temperature, reach the effect of refrigeration.Its energy Flow is to utilize
Whole heat energy (i.e. the heat energy of electric energy+absorption) one that source pump institute consumed energy (electric energy) draws
Play row and transport to high temperature heat source, and play institute's consumed energy effect is to make media collapse to High Temperature High Pressure shape
State, thus reach to absorb the effect of heat energy in low-temperature heat source.
The present invention use sewage be generally the trade effluent after two stage treatment.While it is true,
Trade effluent composition is the most complicated and unstable, and owing to the internal structure of heat pump is the most complicated, is difficult to clear
Washing, therefore, sewage first passes through centrifugal sewage heat exchanger and processes, and it solves well containing the most outstanding
The medium of float, granule or object causes the situation that sewage source heat pump blocks, and avoids time-consuming consumption simultaneously
The cleaning of power, and make the heat of waste water middle-low grade fully apply.Therefore, in the present invention
Use first passes through the process of centrifugal sewage heat exchanger through pretreated trade effluent, then uses sewage
Heat collected by source heat pump.
Sewage water heat pump AOF calculation:
Heating energy coefficient 1.33, heating energy coefficient 0, cooling energy coefficient 0.66, refrigerated energy-saving system
Several 0.If unit sewage quantity is with 105m3Meter, utilizing the sensible heat temperature difference is 5 DEG C, then may utilize cold and hot amount and be
2.1×109KJ.Can be calculated by above-mentioned data and formula: during heating, primary energy (coal-fired) can be saved,
Be equivalent to 71.3 tons (22800 yuan) coal-fired.Primary energy (combustion gas) can be saved, be equivalent to 40.7 tons
(48800 yuan) combustion gas.During refrigeration, primary energy (coal-fired) can be saved, be equivalent to 19 ton (6100
Unit) coal-fired.Primary energy (combustion gas) can be saved, be equivalent to 10.5 tons of (12600 yuan) combustion gas.
With 1000m3/ h sewage calculates, and when the sewage temperature difference is 5 DEG C, extractible heat is 5800kw,
If carrying out heat production by combustion standard coal about to need to consume 5000kg.The sewage of 100,000 tons is processed by this calculating
Day, production capacity was up to 580000000kw.
2, waste gas uses air supply heat pump to collect heat
Sewage Plant is in running, and each processing unit all can produce foul smell, and the process of waste gas the most more comes
More being paid attention to by technical staff, the most more widespread practice is to add a cover, air-introduced machine cause waste gas
Processing system.And the present invention before exhaust-gas treatment by collect waste gas through solar temperature rising, specifically,
Fresnel Lenses is used to be collected solar energy, with Fresnel Lenses as a kind of solar energy condenser lens
It is greatly improved the focusing of sunlight, improves solar energy utilization ratio with this, the temperature of the waste gas after heating
About 40 DEG C.The energy of collection is not directly used in the mummification of mud but first adds by Fresnel Lenses
Hot waste gas, then by heat pump techniques, this heat energy is applied to sludge drying, the purpose of do so is to improve
The stable supply of the sludge drying energy.It addition, the utilization of this technology also can reduce follow-up Odor control dress
The load put, and, solar energy provides energy, safely cleaning as supplementary energy for Sewage Plant.
Being computed, the waste gas of the Fresnel Lenses heating of 10m × 10m can be collected through air supply heat pump
Heat is 3870kwh.
3, the heat that solar energy vacuum tube is collected
Also setting up solar energy vacuum tube, the heat of collection is also simultaneously used for the mummification of mud, the most
The clean energy resource utilizing solar energy.
Solar energy uses vacuum tube heat absorbing, and air thermally contacts with vacuum tube as heat-carrying agent, band
Walk the sun heat wave that vacuum tube absorbs.Calculating according to the medium regional areas of China's solar energy resources, year is too
Sun radiation amount is 5850～6680MJ/m2, it is contemplated that with day amount of radiation 4.5～5.1kW h/m2, vacuum tube
Area is according to 144m2Calculating, every day can produce the heat of about 740kwh.According to standard fire coal
Energy balane, the heat that standard coal burning produces is 7000 kilocalories/kilogram be converted into joule i.e.
29260J/kg, 740kwh are converted into joule 740 × 103× 3600J obtains the tonnage of coal: 740 ×
103× 3600/ (29260 × 1000)=91.0458 ton.
It addition, Fresnel Lenses and solar energy vacuum tube can select suitable size according to demand.
In summary, sewage is a kind of renewable heat resource containing abundant Lowlevel thermal energy, uses heat
This Lowlevel thermal energy is converted into high level heat by pump, and utilizes this heat energy that mud in factory is carried out mummification,
Heat energy is utilized nearby.Not only the heat energy of sewage can utilize, the heat energy in the distributed waste gas of Sewage Plant
Also can utilize.Sewage Plant is in running, and each processing unit all can produce foul smell, waste gas
Processing and the most increasingly paid attention to by technical staff, the most more widespread practice is to add a cover, by air inducing
Power traction is to exhaust treatment system.And the present invention is special through solar energy by the waste gas of collection before exhaust-gas treatment
It not that the energy that Fresnel Lenses is collected heats up, then by heat pump techniques, this heat energy is applied to dirt
Mud mummification, the utilization of this technology also can reduce the load of follow-up emission-control equipment, and, solar energy
Energy, safely cleaning is provided for Sewage Plant as supplementary energy.Additionally also set up solar energy vacuum tube,
The heat collected also is simultaneously used for the mummification of mud.
As can be seen here, the present invention utilizes the heat production of heat pump-heliotechnics coupling institute can do mud
Change processes, and draws materials nearby, comprehensively extracts the low potential energy in waste gas, waste water, be converted into high level heat,
And use solar energy, and it being applied in sludge drying, whole process make use of Sewage Plant certainly to greatest extent
The energy of body loss and the heat of solar energy, be substantially reduced the power consumption of mud drying process, reaches joint
The purpose of energy, it is achieved that the clean energy-saving of mud drying process produces；And also reduce follow-up waste gas
The load of processing means.
Further, the mud after mummification is carried out compost by the present invention, and compost is actual is exactly that garbage is steady
A kind of form of fixedization, needs specific humidity, temperature and aeration condition so that probiotics produces,
Make Organic substance constantly be degraded and stablize, and produce the process of a kind of product being suitable for Land_use change.
Municipal sludge after drying and other treatment, then is carried out compost by the present invention, it is achieved the recycling of mud, should
Technology can not only effectively process mud, moreover it is possible to is made into the fertilizer with high added value, really realizes
The disposal of resources of garbage.So sludge composting is one not only will not damage environment but also can resource return
Economical treatment technology.
Embodiment 1
A kind of municipal sludge processing method, comprises the following steps:
Take municipal sludge, be put in drying baker；
Sewage uses the waste gas produced in the heat of sewage source heat pump collection, sewage disposal process through luxuriant and rich with fragrance alunite
Heat and solar energy that your lens are collected with air supply heat pump after assembling the heat of sunlight collection are true
The heat that blank pipe is collected imports drying baker, for sludge dehydrating and drying；
Sludge drying to water content is 68%, and airtight normal temperature fermentation obtains fertilizer in 35 days.
Embodiment 2
A kind of municipal sludge processing method, comprises the following steps:
Take municipal sludge, be put in drying baker；
Sewage sewage heat exchanger by centrifugation uses sewage source heat pump to collect heat, the heat of collection after processing
It is passed through drying baker by heat pipe；
Fresnel Lenses assembles the waste gas that the heat gas collecting apparatus of sunlight collection is collected, after heating
Waste gas air supply heat pump collect heat be passed through drying baker by heat pipe；
The heat that solar energy vacuum tube is collected imports drying baker by heat pipe；
Drying baker is by controlling the heat sludge dehydrating and drying in the inner of separate sources；
Sludge drying to water content is 70%, adds the fertilizer that embodiment 1 prepares, and addition is mud
The 1% of weight, after mixing, airtight normal temperature fermentation obtains fertilizer in 28 days.
Embodiment 3
A kind of municipal sludge processing method, comprises the following steps:
Take municipal sludge, be put in drying baker；
Sewage sewage heat exchanger by centrifugation uses sewage source heat pump to collect heat, the heat of collection after processing
It is passed through drying baker；
Fresnel Lenses assembles the waste gas that the heat gas collecting apparatus of sunlight collection is collected, after heating
Waste gas air supply heat pump collect heat be passed through drying baker；
The heat that solar energy vacuum tube is collected imports drying baker；
Control the heat of separate sources for sludge dehydrating and drying；
Sludge drying to water content is 72%, adds the fertilizer that embodiment 1 prepares, and addition is mud
The 1% of weight, puts into the first airtight normal temperature fermentation of fermentation cabin 15 days after mixing, then ferment first
Mud in storehouse stirs and smashs to pieces and be transferred to the second fermentation cabin up and down, then ferments 10 days and obtain fertilizer.
The fertilizer that embodiment 1-3 prepares is verified, the same inorganic fertilizer of fertilizer performance obtained, should
Fertilizer is used for farmland, can increase organic matter, improve Soil structure, reduces the use of existing fertilizer
Amount, and the potential erosion of soil can be alleviated, it is achieved that the resource application of mud.
The present invention directly utilizes the sewage after Sewage Plant two stage treatment and the produced waste gas low temperature as heat pump
Thermal source, so near heat user, saves the energy consumption of conveying heat, thus improves the economy of its system.
Solar collecting device as auxiliary energy supply is taked, with Fresnel Lenses and solar energy vacuum tube, to promote
The utilization rate of the sun.In current this energy crisis, under conditions of ecological deterioration, sludge composting is because of it
There is no secondary pollution, turn waste into wealth, because its biochemistry again realizing resource will become a new generation's mud
Newly warding off for the treatment of technology, can realize reducing discharging and can producing economic benefit, kill two birds with one stone.
Although illustrate and describing the present invention with specific embodiment, but it will be appreciated that and do not carrying on the back
May be made that in the case of the spirit and scope of the present invention many other change and amendment.Therefore,
This means all these changes including belonging in the scope of the invention in the following claims and repair
Change.
Claims (10)
1. a municipal sludge processing method, it is characterised in that by municipal sludge drying, described dry
Change heat, sewage disposal process that the origin of heat used uses sewage source heat pump to collect in sewage
The waste gas of middle generation after solar energy heating with air supply heat pump collect heat and solar energy vacuum tube
The heat collected；
Sludge drying to water content is 68%-72%, and sealed fermenting obtains fertilizer.
Municipal sludge processing method the most according to claim 1, it is characterised in that heating is described
The thermal source of waste gas is mainly derived from Fresnel Lenses and assembles the heat of sunlight collection.
Municipal sludge processing method the most according to claim 1, it is characterised in that described sewage
First pass through centrifugal sewage heat exchanger to process, then use sewage source heat pump to collect heat.
4. according to the municipal sludge processing method described in any one of claim 1-3, it is characterised in that
The temperature of fermentation is 15-25 DEG C, and the time of fermentation is 25-35 days.
5. according to the municipal sludge processing method described in any one of claim 1-3, it is characterised in that
The fertilizer obtained after fermentation adds in the mud after mummification as additive, ferments after mixing.
6. according to the municipal sludge processing method described in any one of claim 1-3, it is characterised in that
The step in sweat, mud stirred the most up and down and smash to pieces.
7. heat pump-the solar energy of enforcement municipal sludge processing method described in any one of claim 1-6
Coupled system, it is characterised in that including: sewage source heat pump, exhaust gas source heat pump, solar energy vacuum tube,
Mud drying device, installation for fermenting；
Described sewage source heat pump, exhaust gas source heat pump, solar energy vacuum tube fill with described sludge drying respectively
Put connection；
Described mud drying device is connected with described installation for fermenting.
Heat pump the most according to claim 7-solar energy coupled system, it is characterised in that described
Heat pump-solar energy coupled system also includes gas collecting apparatus and Fresnel Lenses, and described Fresnel Lenses is collected
Energy heating of gas in the described gas collecting apparatus, described gas collecting apparatus and described exhaust gas source heat pump
Connect.
Heat pump the most according to claim 7-solar energy coupled system, it is characterised in that described
Heat pump-solar energy coupled system also includes centrifugal sewage heat exchanger, and described centrifugal sewage heat exchanger is with described
Sewage source heat pump connects.
10., according to the heat pump described in any one of claim 7-9-solar energy coupled system, its feature exists
In, described installation for fermenting includes the first fermentation cabin and the second fermentation cabin.
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| CN107056005A (en) * | 2016-12-30 | 2017-08-18 | 武汉芳笛环保股份有限公司 | A kind of efficient low-consume mud drying device |
| CN113526824A (en) * | 2021-07-06 | 2021-10-22 | 绍兴市上虞区供水有限公司 | Heat energy and solar energy linkage drying sludge treatment equipment and process |
| WO2021253659A1 (en) * | 2020-06-17 | 2021-12-23 | 石文政 | Solar sludge drying and sludge composting combined treatment method and device |
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| CN103359904A (en) * | 2012-09-28 | 2013-10-23 | 山东华城城建设计工程有限公司 | Sludge drying system combining sewage source heat pump with solar energy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107056005A (en) * | 2016-12-30 | 2017-08-18 | 武汉芳笛环保股份有限公司 | A kind of efficient low-consume mud drying device |
| WO2021253659A1 (en) * | 2020-06-17 | 2021-12-23 | 石文政 | Solar sludge drying and sludge composting combined treatment method and device |
| CN113526824A (en) * | 2021-07-06 | 2021-10-22 | 绍兴市上虞区供水有限公司 | Heat energy and solar energy linkage drying sludge treatment equipment and process |
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