CN105621848B - Shale biomass garbage solar sandwich desiccation apparatus and two-period form drying method - Google Patents
Shale biomass garbage solar sandwich desiccation apparatus and two-period form drying method Download PDFInfo
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- CN105621848B CN105621848B CN201610022286.2A CN201610022286A CN105621848B CN 105621848 B CN105621848 B CN 105621848B CN 201610022286 A CN201610022286 A CN 201610022286A CN 105621848 B CN105621848 B CN 105621848B
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- Y02W30/20—Waste processing or separation
Abstract
A kind of shale biomass garbage solar sandwich desiccation apparatus and two-period form drying method, including photic zone, flexible conveyer belt, rigid conveying belt, middle water resource heat pump heating system and the insulating layer being arranged in order from top to bottom, surrounding side, which is enclosed, is equipped with thermal insulation material to reduce heat loss, and the thermal insulation material photic zone and insulating layer form an interlayer space kept the temperature；Shale biomass garbage is laid on the flexible delivery band on upper layer, is heated by solar energy direct irradiation, is realized predry chemical conversion type, deodorization, sterilization and photocatalysis denaturation, is dried moisture content<40%；Then drop to the rigid conveying belt of lower layer from flexible conveyer belt while realizing automatic turning, then using only in interlayer space air-source or it is common utilize below middle water resource heat pump heating system heated again, be further cured to moisture content<20%, it is final to realize two-period form desiccation.The present invention realizes the desiccation dehydration of sludge quality of biomass rubbish in such a way that the direct desiccation of solar energy and indirectly drying are combined, and drying efficiency is high, and environment protecting is good.
Description
Technical field
The present invention relates to a kind of processing methods of solid waste, and in particular to a kind of for shale biomass garbage desiccation
Solar sandwich desiccation apparatus and two-period form drying method, belong to environmental technology field.
Background technology
Shale biomass garbage includes that the moisture content such as sludge, kitchen garbage, cyanobacteria, excrement are higher, grain size is smaller, easily shape
At slimy organic solid waste, the present invention is handled using sludge as typical shale rubbish.
With the continuous improvement of China's urban wastewater treatment rate, urban sewage treatment plant sludge yield also sharply increases.It cuts
Only the whole nation is completed urban wastewater treatment firm 3479, sewage treatment capacity about 1.2 billion cubic meters/day in by the end of June, 2013.It is dirty
Water treatment plant builds up operation most directly as a result, being being substantially improved for sludge yield on a large scale.It is predicted that by 2015, annual city
The yield of town sewage treatment plant wet mud (moisture content 80%) is up to 33,590,000 tons, i.e. 9.2 ten thousand tons of sludge of whole nation daily output.It is surplus
One greatest problem of remaining sludge is, moisture content is high, its usual moisture content 99.9% or more, and by general dehydration at
Reason measure, such as centrifugal dehydration, plate compression between final moisture content can only achieve 75-85%, still cannot meet follow-up
The requirement of processing.If subsequent processing takes landfill, then moisture content needs below 60%；Burning is such as taken, then sludge is aqueous
Rate needs<30%, or even to 20% or less；Could meet the needs of heat treatments such as follow-up sludge incineration, pyrolysis carbon processed, therefore such as
What high efficiency handles to low energy consumption these sludge as where key to the issue.
Heat drying is the important means of existing sludge dewatering.Existing sludge drying machine in the market, mostly with coal-fired hot-blast stove
The hot wind of generation dries sludge as heat source, but its drying efficiency is low, and air inducing is needed to go out, and there is power costs
It is high, mud granule can not very well be detached with flue gas after water vapour content is excessive in flue gas, the foul smell amount that generates is more and desiccation
The problems such as, thus limit it and be widely used.
Solar energy is a kind of effective heating resource, is not required to additional offer heat source, therefore in mud drying process
More utilization is obtained.Or but existing solar energy desiccation technology floor space is excessive or secondary pollution etc. can not be effective
Control, while drying efficiency is also relatively low, therefore how solar energy is efficiently utilized, become the key point of research.In addition,
Solar energy is intermittent energy source, and energy-flux density is low, discontinuous, unstable, makes it difficult to meet Drying Dynamics energy requirement, because
This overcomes the uncertainty of solar source, reduces sludge drying energy consumption, has important work for biomass economies such as sludge
With.
Invention content
Present invention aims at overcome the taking up a large area of existing solar energy sludge drying system, the efficiency of solar energy utilization
The shortcomings of not high, directly heats the method that desiccation is combined with solar heat pump supply indirectly drying, using too using solar energy
It is positive can residual heat system, build solar sandwich desiccation apparatus, upper layer directly heats desiccation using solar panels, then by sludge from
Upper layer drops to lower layer and plays the role of turning, the middle water that lower plywood is generated using air-source waste heat supply temperature in interlayer and solar energy
Source steam-heating system reduces the floor space of facility, greatlys improve social benefit and warp to improve sludge drying efficiency
Ji benefit.
The present invention is achieved by the following technical solutions：
A kind of shale biomass garbage solar sandwich desiccation apparatus, it is characterised in that：The solar sandwich desiccation dress
It is set to for the automatic turning anhydration system of the interlayer two-period form of shale biomass garbage, including the light transmission being arranged in order from top to bottom
Layer, flexible conveyer belt, rigid conveying belt, middle water resource heat pump heating system and insulating layer, surrounding side enclose be equipped with thermal insulation material with
Heat loss is reduced, the insulating layer of the photic zone and the bottom of the thermal insulation material and top forms the interlayer space of a heat preservation；
The photic zone is transmissive to sunlight；The flexible conveyer belt is located at the euphotic lower section and for laying
With the conveying shale biomass garbage；The rigid conveying belt be located at the lower section of the flexible conveyer belt and to lay with it is defeated
Send the shale biomass garbage；The middle water resource heat pump heating system is located at the lower section of the rigid conveying belt and connection is external
Solar energy heat distribution system；The insulating layer is located at the lower section of the middle water resource heat pump heating system to reduce the downward biography of heat
It leads；
The shale biomass garbage is shone first on the flexible delivery band by through the euphotic sunlight
Penetrate, predry chemical conversion type, deodorization, sterilization and photocatalysis denaturation directly heated by solar energy, then by gravity automatically from
The flexible conveyer belt is fallen on rigid conveying belt, using only air-source in the interlayer space or common using should
Air-source and the middle water resource heat pump heating system below are heated again, further realize desiccation.
As a further improvement, the photic zone is the glass, plastic film or quartz glass for transmiting sunlight.
As a further improvement, being equipped with condensed water removal device on the photic zone, lower section is provided with catch basin, institute
It states condensed water removal device the condensed water removal that vapor on the photic zone is formed is pooled in the catch basin, it is cold to reduce
Condensate is to the humidity in the blocking and the reduction interlayer space of sun incident light.
As a further improvement, the flexible conveyer belt, which includes transmission belt and lower part, is used to support the more of the transmission belt
A roller wheel, the transmission belt is using polyethylene flexible or HDPE film as making material, width 50-150cm, the transmission belt
The evenly distributed nest formula duct of upper setting, for the duct size between 1-3cm, the wheel spacing of the roller wheel is 50-
100cm。
As a further improvement, the rigid conveying belt using steel panel as drying support plate, every 50-150cm
One supporting rollern is set.
As a further improvement, the thermal insulation material is 8cm bilayer PC materials or silica wool.
As a further improvement, the direction of motion of the flexible conveyer belt and rigid conveying belt is on the contrary, the shale is given birth to
Substance rubbish drops to the rigid conveying belt by gravity by the flexible conveyer belt on upper layer, realizes automatic turning process.
As a further improvement, the middle water resource heat pump heating system includes being layed in below the rigid conveying belt
Heat resistant plastics manage or metal tube.
As a further improvement, the insulating layer by heat-preservation cotton or polyurethane hollow plate or polystyrene or they
The thermal insulation material of intercombination is constituted.
As a further improvement, being 5-20cm the distance between from the photic zone to the flexible conveyer belt.
As a further improvement, the solar sandwich desiccation apparatus further includes being useful for monitoring solar energy folder in real time
Temperature humidity and control shale biomass garbage movement speed in the solar sandwich desiccation apparatus in layer desiccation apparatus
Automatic control system, which includes temperature sensor, humidity sensor and conveyer belt moving speed controlling device.
The present invention another technical solution be：
A kind of shale biomass garbage two-period form drying method realized by above-mentioned solar sandwich desiccation apparatus, it is special
Sign is：The shale biomass garbage is laid on the flexible delivery band on upper layer, is heated by solar energy direct irradiation, is realized
Predry chemical conversion type, deodorization, sterilization and photocatalysis denaturation, dry moisture content<40%；Then fall from the flexible conveyer belt
Rigid conveying belt to lower layer realizes automatic turning simultaneously, then using only in the interlayer space air-source or common profit
The middle water resource heat pump heating system with the air-source and below is heated again, is further cured to moisture content<
20%, it is final to realize two-period form desiccation.
As a further improvement, the method includes following specific steps：
Shale biomass garbage, the flexible conveyer belt on upper layer is uniformly routed to distributing device by step 1, and thickness is kept
Between 0.5-5cm, shale biomass garbage is moved forward with flexible conveyer belt intermittence, at the same time direct by solar energy
Irradiation heating, until the moisture content of shale biomass garbage<40%, shale biomass garbage reaches the end of flexible conveyer belt
When, using mechanical scraper as auxiliary, shale biomass garbage is using on gravity Automatic-falling to the rigid conveying belt of lower layer；
Step 2, using only interlayer space air-source heat or jointly utilize the air-source and below described in
Middle water resource heat pump heating system, further desiccation manufactured half-formed semi-oriented shale biomass garbage in step 1, finally
Reach default moisture content<20% desiccation target；
The vapor generated during step 3, step 1 and step 2 turns to condensation under euphotic condensation
Water, after being collected by gravity flow or condensed water removal device, condensed water adds in the solar energy heat distribution system, further rises
The middle water resource heat pump heating system is used for after temperature.
As a further improvement, the sludge class shale biomass is excess sludge or the lake of municipal sewage plant
The containing including cyanobacteria that eutrophication generates in dredging mud or lake in pool, river, drainage pipeline or pumping plant
The higher biomass of water rate, the moisture content of the shale biomass garbage is between 80-95%.
Compared with prior art, the present invention takes full advantage of solar energy hot effect, and sludge biolobic material rubbish is passed through
The pre- desiccation of solar energy direct irradiation realizes its quickly catalysis desiccation so that moisture content is reduced to 40%, forms molding dirt
Mud particulate material；Mud granule enters indirectly drying system after semi-oriented, is added using air-source and middle water source heat pump system
Heat reaches moisture content to further increase drying efficiency<20% desiccation target.Therefore, patent of the present invention is to combine the sun
Sludge after pre- desiccation is sent at lower layer's figure viewed from behind, fills as significant process therein by the direct desiccation of energy and indirectly drying
Divide and its further desiccation is realized into the efficient, fast of sludge in conjunction with solar heat pump technology using the temperature in closed interlayer space
Rapid-curing cutback purpose not only contributes to the site area for saving sunlight drying, and is conducive to the molding of sludge substance, reaches
Follow-up carbon processed makes RDF for the heat treatment requirements such as burning, to be follow-up further using laying the foundation.
Advantages of the present invention is mainly reflected in the following aspects：
(1) solar energy effect is taken full advantage of, the shales such as sludge organic matter is uniformly dried in the air and is layered on interlayer section, was both realized
Solar energy directly utilizes, while interlayer space being utilized effectively to keep the temperature it again, desiccation rate is greatly improved, and reduce dress
Set volume.
(2) shale biomass garbage desiccation is formed certain granules shape by the modeling function for utilizing flexible conveyer belt itself,
Good condition is provided to be utilized for follow-up recycling sludge.
(3) by recycling the middle water being cooled into drying process, using the effect of external solar heat-collection plate, further
Quick desiccation shale biomass garbage, to reduce the floor space of sludge solar energy desiccation operation, and reduces in sludge
The denaturation such as protein, have reached function of fertilizer retention.
The shale biomass garbage solar sandwich desiccation apparatus and method both can directly heat reality by solar energy
Existing desiccation, sterilization, granulation and catalyzing denaturing, and can be heated by air-source/middle water resource heat pump anhydration system, solar energy is straight
Both desiccation and indirectly drying combination are connect, drying efficiency of the present invention is high, system transparent degree is high, environment compatibility is good, is
System high degree of automation, stable and safe in operation, do not generate dust substantially, and foul gas and evaporable water can be recycled directly,
It disclosure satisfy that sludge drying, photocatalysis denaturation, sterilization and the needs stored simultaneously, realize mud decrement and be its recycling
It prepares, while remaining the original agricultural reuse value of shale biomass garbage, reached environment, society and economic three
Effective unification of benefit.
Description of the drawings
Fig. 1 is the device of the invention schematic diagram.
Fig. 2 is the schematic diagram of photic zone and condensed water removal device.
Fig. 3 is the schematic diagram of mud granulizing on flexible delivery band.
Fig. 4 be solar energy directly or indirectly anhydration system and its between interlayer space schematic diagram.
Specific implementation mode
The present invention provides a kind of shale biomass garbage solar sandwich desiccation apparatus and two-period form drying methods, utilize
Direct anhydration system-the air-source of solar energy/middle water resource heat pump anhydration system is mutually tied by the direct desiccation of solar energy with indirectly drying
The mode of conjunction accelerates the solar energy desiccation rate of shale biomass garbage, realizes the mesh of sludge quality of biomass garbage drying dehydration
's.Granulating and forming function after the shales biomass desiccation such as sludge is greatly improved in the present invention, reduces floor space, fully profit
With the sludge content of organic matter, comprehensive utilization of waste materials is realized, achieved the effect that garbage regeneration utilization, improved environmental protection, to pole
The earth improves Social benefit and economic benefit.
Referring to Fig. 1, the shale biomass garbage solar sandwich desiccation apparatus is for shale biomass garbage
The automatic turning anhydration system of interlayer two-period form, including the photic zone 1 that is arranged in order from top to bottom, the flexibility of recyclable migration be defeated
Send band 3, rigid conveying belt 4, middle water resource heat pump heating system 5, insulating layer 6, babinet and supporting layer 7, external solar-heating
System (solar heat-collection plate, solar energy heat exchanger), condensed water removal device 8 and automatic control system etc..The sun
Energy interlayer desiccation apparatus surrounding side, which is enclosed, is equipped with thermal insulation material to reduce heat loss, and the thermal insulation material is 8cm bilayers PC
The interlayer that the photic zone 1 of material or silica wool, the thermal insulation material and top and the insulating layer 6 of the bottom form a heat preservation is empty
Between.
The photic zone 1 is transmissive to sunlight, is located at the top of the flexible conveyer belt 3 and is located at entire solar energy
The top layer of interlayer desiccation apparatus, the photic zone 1 is preferably by the transparent glass such as glass, plastic film, quartz glass or film structure
It builds, interlayer anhydration system is transmitted into for sunlight, the distance between from the photic zone 1 to the flexible conveyer belt 3
For 5-20cm.
Fig. 2 is please referred to, the condensed water removal device 8 for removing condensing water vapor is installed on the photic zone 1, such as
Wiper, lower section are provided with catch basin 2；Condensed water removal device 8 is by either automatically or manually, and not timing is by water on photic zone 1
The condensed water removal that steam is formed is pooled in the catch basin 2, to reduce resistance of the condensed water to sun incident light on glass
Gear, and reduce the humidity in interlayer space.
The flexible conveyer belt 3 is located at the lower section of the photic zone 1, to lay and convey the shale biomass rubbish
Rubbish 01, referring to Fig. 3, the flexible conveyer belt 3 includes the multiple roller wheels for being used to support the transmission belt of transmission belt and lower part.Institute
Transmission belt is stated using the flexible black film such as polyethylene or HDPE film as its making material, flexible conveyer belt is formed, wherein transmitting
The a large amount of evenly distributed nest formula duct of setting is taken, duct size is between 1-3cm, to be conducive to shale biomass rubbish
The sizing of rubbish 01 and subsequent recycling；The width of transmission belt can be between 50-150cm；It is set among simultaneous transmission band
Multiple roller wheels are equipped with, wheel spacing is used to support the migration of transmission belt between 50-100cm.
The rigid conveying belt 4 is located at the lower section of the flexible conveyer belt 3, to lay and convey the shale biomass
Rubbish 01；A supporting rollern is arranged using steel panel as drying support plate, every 50-150cm in the rigid conveying belt 4,
Secondary drying system as solar energy.
Referring to Fig. 4, the direction of motion of the flexible conveyer belt 3 and rigid conveying belt 4 is on the contrary, the shale biomass
Rubbish 01 drops to the rigid conveying belt 4 by gravity by the flexible conveyer belt 3 on upper layer, realizes automatic turning process.
Referring to Fig. 1, the middle water resource heat pump heating system 5 is located at the lower section of the rigid conveying belt 4 and connection is external
Solar energy heat distribution system, for solar heat to be introduced directly into the not light-exposed desiccation layer of lower layer to meet desiccation demand, supplement
Energy needed for desiccation improves the wherein efficiency of heating surface by the temperature in heat transfer and closed interlayer space.The rigidity is defeated
The part for sending the lower section of band 4 to be laid with certain heat resistant plastics' pipe or metal tube water resource heat pump heating system 5 as in, in this
Water resource heat pump heating system 5 further includes middle water source heat pump units, middle pond, the second water pump and the second air cooled condenser.Institute
5 external solar energy heat distribution system of middle water resource heat pump heating system is stated, to ensure, in the case where not there is sufficient sunlight, still to be able to
Be conducive to sludge drying effect.The solar energy heat distribution system includes solar heat-collection plate, solar energy heat exchanger and accumulation of heat
Pond.
The insulating layer 6 is located at the lower section of the middle water resource heat pump heating system 5, by heat-preservation cotton, polyurethane hollow plate,
The thermal insulation materials such as polystyrene are constituted, to reduce the downward conduction of heat.The insulating layer 6 is by heat-preservation cotton or polyurethane
Hollow plate or polystyrene or the thermal insulation material that they are combined with each other are constituted.
The solar sandwich anhydration system is arranged in parallel with series model, and parallel baffle length can be from independent 1 piece
It is connected in series at most 300 pieces.Upper layer temperature is entered by heat transfer, heat radiation isotype in subsequent solar sandwich.
Steel wire rope plate as a whole can be sealed between lower layer's slat conveyer with steel wire rope, and every 50-150cm, a bearing is set
Idler wheel supports total amount with holder, ensures the normal operation of conveyer belt.Angle is 30-60 ° needed for each heating plate arrangement, is depended on
The sun light direct beam angle of location.
The automatic control system includes temperature sensor, humidity sensor and conveyer belt moving speed controlling device etc.,
For monitoring temperature, humidity in the solar sandwich desiccation apparatus in real time, exist to control the shale biomass garbage 01
Movement speed in the solar sandwich desiccation apparatus.
Shale biomass garbage two-period form drying method of the present invention passes through above-mentioned solar sandwich desiccation apparatus reality
It is existing, it is characterised in that：The shale biomass garbage 01 is laid on first on the flexible conveyer belt 01 on upper layer, described in transmission
The solar energy direct irradiation of photic zone 1 heats, and realizes predry chemical conversion type, deodorization, sterilization and photocatalysis denaturation, dries aqueous
Rate<40%；Then it drops to the rigid conveying belt 4 of lower layer automatically by gravity from the flexible conveyer belt 3 while realizing automatic
Turning, then using only the air-source in the interlayer space or the middle water source jointly using the air-source and below
Heat pump heating system 5 is heated again, is further cured to moisture content<20%, it is final to realize two-period form desiccation.
The two-period form drying method carries out the sludge after centrifugal dehydration using high-pressure pump or other distributing devices
At the uniform velocity cloth, between 0.5-5cm, solar sandwich desiccation display system angle is located between 30-60 ° thickness, is taken after cloth
Certainly in moisture percentage in sewage sludge, sludge sliding can be resisted with Sludge Surface tension and be limited.
The two-period form drying method, one section of desiccation directly directly heat method using solar energy, by upper layer sludge
Directly moisture content is arrived in drying<40% so that it can form definite shape, and realize deodorization, sterilization and molding effect, under
Layer drying system realizes bulk turning effect.
The two-period form drying method, two sections of desiccation indirect utilization solar energy, passes through air-source high temperature in interlayer space
And the heat pump anhydration system 5 at middle water source, it realizes two sections of figure viewed from behind desiccation of sludge, reaches moisture percentage in sewage sludge<20%, to advantageous
In subsequent recycling.
The present invention is suitable for the drying process of the shale biomass garbage of sludge class, can be that the residue of municipal sewage plant is dirty
The cyanobacteria that eutrophication generates in dredging mud or lake in mud lake, river, drainage pipeline or pumping plant
The higher biomass of equal moisture content, moisture content easily form shale state or the livestock and poultry of mixing between 80-95%
Excrement and human excrement and urine, biogas residue, Chinese medicine refine slag etc..
The shale biomass garbage two-period form drying method comprises the following specific steps that：
Shale biomass garbage 01, the flexible conveyer belt 3 on upper layer is uniformly routed to distributing device by step 1, and thickness is protected
It holds between 0.5-5cm, shale biomass garbage 01 is moved forward with flexible conveyer belt 3 is intermittent, at the same time passes through the sun
Energy direct irradiation heating, until the moisture content of shale biomass garbage 01<40%；Shale biomass garbage 01 reaches flexible delivery
When with 3 end, using mechanical scraper as auxiliary, shale biomass garbage 01 is defeated using the rigidity of gravity Automatic-falling to lower layer
It send on band 4.
Step 2, using only interlayer space air-source heat or jointly utilize the air-source and below described in
Middle water resource heat pump heating system 5, further desiccation manufactured half-formed semi-oriented shale biomass garbage 01 in step 1, most
Reach default moisture content eventually<20% desiccation target, into recycling step.
The vapor generated during step 3, step 1 and step 2 turns to condensation under the condensation of photic zone 1
Water, after being collected by gravity flow or condensed water removal device 8, condensed water adds in the solar energy heat distribution system, further
The middle water resource heat pump heating system 5 is used for after heating.
Following embodiments are with the technical scheme is that premise, gives detailed embodiment and specifically operated
Journey, but protection scope of the present invention is not limited to following embodiments, for persons skilled in the art, without departing substantially from this
Any obvious change done under the premise of inventive technique scheme, belongs to the protection domain of the claims in the present invention.
Embodiment 1
The moisture content of dehydrated sludge is 90%, uniformly distributed to arrive upper layer by high-pressure pump or other mechanical material distributing systems
Delivery board, laying depth 0.5cm enter flexible conveyer belt 3 afterwards, and day temperature at 72-82 DEG C, at 15-40 DEG C do by evening temperature
After changing 1.5 days, moisture content reaches 40%；It is transplanted on the right side end of flexible conveyer belt 3 afterwards, it will using gravity and scraping plates system
Sludge scrapes, and into rigid conveying belt 4, utilizes the middle water resource heat pump heating system 5 of air-source in closed interlayer space and the back side
Further desiccation is carried out, last moisture content reaches<20%；Using mechanical cleaning shoe and gravity, sludge after desiccation is entered
To material collecting tank, pattern is utilized into next step；The vapor being evaporated in the process is condensed on photic zone 1, is used to it cold
Condensate removal device 8 irregularly drains water in catch basin 2, then is guided into external solar energy heat distribution system, in being used for
The medium of water resource heat pump heating system 5.
Claims (14)
1. a kind of shale biomass garbage solar sandwich desiccation apparatus, it is characterised in that：The solar sandwich desiccation apparatus
For the automatic turning anhydration system of interlayer two-period form for shale biomass garbage, including the light transmission that is arranged in order from top to bottom
Layer, flexible conveyer belt, rigid conveying belt, middle water resource heat pump heating system and insulating layer, surrounding side enclose be equipped with thermal insulation material with
Heat loss is reduced, the insulating layer of the photic zone and the bottom of the thermal insulation material and top forms the interlayer space of a heat preservation；
The photic zone is transmissive to sunlight；The flexible conveyer belt be located at the euphotic lower section and for lay and it is defeated
Send the shale biomass garbage；The rigid conveying belt is located at the lower section of the flexible conveyer belt and to lay and convey institute
State shale biomass garbage；The middle water resource heat pump heating system is located at the lower section of the rigid conveying belt and connection is external too
Positive energy heating system；The insulating layer is located at the lower section of the middle water resource heat pump heating system to reduce the downward conduction of heat；
The shale biomass garbage is irradiated first on the flexible delivery band by through the euphotic sunlight,
Predry chemical conversion type, deodorization, sterilization and photocatalysis denaturation are directly heated by solar energy, then by gravity automatically from described
Flexible conveyer belt is fallen on rigid conveying belt, using only in the interlayer space air-source or jointly utilize the air
Source and the middle water resource heat pump heating system below are heated again, further realize desiccation.
2. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：Described is saturating
Photosphere is the glass or plastic film for transmiting sunlight.
3. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：Described is saturating
Condensed water removal device is installed, lower section is provided with catch basin, and the condensed water removal device is by water on the photic zone on photosphere
The condensed water removal that steam is formed is pooled in the catch basin, to reduce condensed water to the blocking of sun incident light and reduce institute
State the humidity in interlayer space.
4. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：Described is soft
Property conveyer belt includes the multiple roller wheels for being used to support the transmission belt of transmission belt and lower part, and the transmission belt is with poly- second flexible
Alkene or HDPE film are making material, width 50-150cm, and evenly distributed nest formula duct, the hole is arranged in the transmission belt
For road size between 1-3cm, the wheel spacing of the roller wheel is 50-100cm.
5. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：Described is rigid
Property conveyer belt using steel panel as drying support plate, every 50-150cm be arranged a supporting rollern.
6. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：The guarantor
Adiabator is 8cm bilayer PC materials or silica wool.
7. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：Described is soft
Property conveyer belt and rigid conveying belt the direction of motion on the contrary, the shale biomass garbage by gravity by upper layer flexible delivery
Band drops to the rigid conveying belt, realizes automatic turning process.
8. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：In described
Water resource heat pump heating system includes heat resistant plastics' pipe or the metal tube being layed in below the rigid conveying belt.
9. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：The guarantor
Warm layer is made of the thermal insulation material of heat-preservation cotton or polyurethane hollow plate or polystyrene or their intercombinations.
10. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：From described
Photic zone to the distance between the flexible conveyer belt be 5-20cm.
11. shale biomass garbage solar sandwich desiccation apparatus according to claim 1, it is characterised in that：Described
Solar sandwich desiccation apparatus further includes being useful for monitoring temperature humidity and control institute in the solar sandwich desiccation apparatus in real time
State the automatic control system of shale biomass garbage movement speed in the solar sandwich desiccation apparatus, the automatic control system
Including temperature sensor, humidity sensor and conveyer belt moving speed controlling device.
12. a kind of shale biomass garbage two-period form desiccation realized by solar sandwich desiccation apparatus described in claim 1
Method, it is characterised in that：The shale biomass garbage is laid on the flexible delivery band on upper layer, passes through solar energy direct irradiation
Heating realizes predry chemical conversion type, deodorization, sterilization and photocatalysis denaturation, dries moisture content<40%；Then defeated from the flexibility
Send band to drop to the rigid conveying belt of lower layer while realizing automatic turning, then using only in the interlayer space air-source or
The middle water resource heat pump heating system of person jointly using the air-source and below is heated again, is further cured to and is contained
Water rate<20%, it is final to realize two-period form desiccation.
13. the shale biomass garbage two-period form desiccation side that solar sandwich desiccation apparatus according to claim 12 is realized
Method, it is characterised in that：The method includes following specific steps：
Shale biomass garbage, the flexible conveyer belt on upper layer is uniformly routed to distributing device by step 1, and thickness is maintained at
Between 0.5-5cm, shale biomass garbage is moved forward with flexible conveyer belt intermittence, is at the same time directly shone by solar energy
Heating is penetrated, until the moisture content of shale biomass garbage<40%, when shale biomass garbage reaches the end of flexible conveyer belt,
Using mechanical scraper as auxiliary, shale biomass garbage is using on gravity Automatic-falling to the rigid conveying belt of lower layer；
Step 2, using only interlayer space air-source heat or utilize the air-source and the middle water below jointly
Source heat pump heating system, further desiccation manufactured half-formed semi-oriented shale biomass garbage in step 1, is finally reached
Default moisture content<20% desiccation target；
The vapor generated during step 3, step 1 and step 2 turns to condensed water under euphotic condensation, leads to
After crossing gravity flow or the collection of condensed water removal device, condensed water adds in the solar energy heat distribution system, after further heating up
For the middle water resource heat pump heating system.
14. the shale biomass garbage two-period form desiccation side that solar sandwich desiccation apparatus according to claim 12 is realized
Method, it is characterised in that：The shale biomass is the excess sludge or lake, river, drainage pipeline of municipal sewage plant
Or the higher biology of the moisture content including cyanobacteria that eutrophication generates in dredging mud in pumping plant or lake
Matter, the moisture content of the shale biomass garbage is between 80-95%.
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| EP2749541A1 (en) * | 2011-08-22 | 2014-07-02 | Guangzhou New Extend Rising Environmental Protection Technologies Machinery Equipment Co., Ltd | Method for retreating dewatered sludge |
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| EP2749541A1 (en) * | 2011-08-22 | 2014-07-02 | Guangzhou New Extend Rising Environmental Protection Technologies Machinery Equipment Co., Ltd | Method for retreating dewatered sludge |
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