CN208250141U - Solar energy thermal coupling sludge drying system - Google Patents
Solar energy thermal coupling sludge drying system Download PDFInfo
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- CN208250141U CN208250141U CN201820441099.2U CN201820441099U CN208250141U CN 208250141 U CN208250141 U CN 208250141U CN 201820441099 U CN201820441099 U CN 201820441099U CN 208250141 U CN208250141 U CN 208250141U
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- solar energy
- sludge drying
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- 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
- 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
- Y02E10/44—Heat exchange systems
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- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model belongs to sludge treatment device technical field, and in particular to a kind of solar energy thermal coupling sludge drying system comprising groove type solar collecting system, solar energy heat-storage system and sludge drying system.This solar energy thermal coupling sludge drying system passes through using groove type solar thermal-arrest and heat reservoir as the indirect sludge drying system heat source of disk, realize effective combination of solar energy thermal process and mainstream sludge drying process, while improving sludge drying evaporation efficiency, reduce system energy consumption, and realizes the uninterrupted continuous operation of system.
Description
Technical field
The utility model belongs to sludge treatment device technical field, and in particular to a kind of solar energy thermal coupling sludge drying
System.
Background technique
As Income gap and industrial water consumption are continuously increased, sewage load is also risen with it, as sewage
" spin-off " of processing, sludge yield rises every year, and consumption problem becomes increasingly conspicuous.In addition, sludge is enriched the pollution in sewage
Object contains the venomous injurants such as the nutriments such as a large amount of nitrogen, phosphorus and organic matter, viral micro-organisms, parasitic ovum, heavy metal
Matter, if serious harm will be generated to environment without disposition is effectively treated.How sludge is dealt carefully with, makes its minimizing, steady
Fixedization, innoxious, recycling, become problem anxious to be resolved in environmental pollution improvement.
Traditional sludge treating method mainly includes landfill, burning and land use, since moisture percentage in sewage sludge is higher, volume
It is huge, all there are problems in practical applications.Moisture percentage in sewage sludge is reduced, sludge drying is realized, improves its calorific value, becomes solution
The certainly key of these problems.
Leading desiccation mode to be applied at present has, traditional thermal energy sludge drying and solar energy sludge drying.But two kinds of desiccation
Mode all encounters some problems in practical applications.In traditional heat drying technology, because disk desiccation machine has, heat transfer area is big, stirs
The advantages that effect is good, device structure is compact, moisture percentage in sewage sludge wide adaptability is mixed, so that it is indirect to carry out sludge using disk desiccation machine
Desiccation is increasingly becoming the Treatment of Sludge mode of mainstream, but due to higher (general 80% or so), to by sludge of moisture percentage in sewage sludge
Moisture content is reduced to 30% hereinafter, the energy consumption of the drying process is very high.And current solar energy sludge drying generallys use conventional glass
The mode of the direct evaporation water of glass room solar illuminating sludge, due to solar energy there are illumination density low, intermittent, direction of illumination
Continually changing problem, the dehydration efficiency of this desiccation mode are lower at any time with intensity.
In addition, certain " stagnant zone " can be generated in mud drying process, i.e., when moisture percentage in sewage sludge is down to the area of 45%-65%
Between when, since sludge is adhered to heat exchange contact surface, lead to the reduction of desiccation machine heat transfer coefficient, drying efficiency decline is viscous across this
Dead zone needs greater energy consumption.
Utility model content
In order to solve the above-mentioned technical problem, it is dry that the purpose of this utility model is to provide a kind of solar energy thermal coupling sludge
Change system, by realizing too using groove type solar thermal-arrest and heat reservoir as the indirect sludge drying system heat source of disk
Effective combination of positive energy photo-thermal technique and mainstream sludge drying process is reduced while improving sludge drying evaporation efficiency
System energy consumption, and realize the uninterrupted continuous operation of system.
To realize the above-mentioned technical purpose, the following technical solution is employed for the utility model: solar energy thermal coupling sludge is dry
Change system, including groove type solar collecting system, solar energy heat-storage system and sludge drying system；
The groove type solar collecting system includes several groove type paraboloid concentrating collectors connected in series and parallel and defeated
Send the Heat-transfer Oil Pump of conduction oil；
The solar energy heat-storage system includes fuse salt high-temperature tank, fuse salt cryogenic tank, is set to the fuse salt high temperature
Melting salt pump between tank and fuse salt cryogenic tank and the heat-exchange device for conduction oil and fuse salt progress heat exchange；
The sludge drying system includes wet mud feed bin, and the discharge port of the wet mud feed bin is provided with wet mud conveying
The discharge port of machine, the wet mud conveyer is connect with the feed inlet of disk desiccation machine, the heating channel of the disk desiccation machine
It is connected to the conduction oil channel of groove type paraboloid concentrating collector.
The groove type paraboloid concentrating collector includes steel structure support as a preferred technical solution, the steel construction
Trough reflectors are installed on bracket, further include evacuated collector tube, the evacuated collector tube is barrel forms, and internal layer is stainless steel
Pipe is coated with coating for selective absorption, for conveying conduction oil；Outer layer is the metal bellows that glass tube adds both ends.
Pass through threeway between the groove type solar collecting system and solar energy heat-storage system as a preferred technical solution,
Valve group switches over.
As improvement to above-mentioned technical proposal, the waste vapour outlet of the disk desiccation machine is provided with deduster, described to remove
Dirt device is connected with condenser, and the condenser is connected with air-introduced machine, and the air outlet of the air-introduced machine is provided with exhaust gas treatment unit.
As improvement to above-mentioned technical proposal, the discharge port of the disk desiccation machine is provided with dewatered sludge conveyer；Institute
The discharge port for stating dewatered sludge conveyer is provided with vibrating screen, through the filtered a part of dewatered sludge back-mixing of the vibrating screen described in
The discharge outlet of wet mud conveyer is mixed with wet mud, and rest part dewatered sludge is delivered to dewatered sludge feed bin.
As improvement to above-mentioned technical proposal, the groove type paraboloid concentrating collector is provided with solar energy automatic tracking
Control system.
Due to the adoption of the above technical scheme, the utility model have it is at least following the utility model has the advantages that
(1) supreme by collecting the heating conduction oil of the solar radiant energy after focusing using groove type paraboloid concentrating collector
Temperature, and with the sludge in its indirect heating disk desiccation machine, it can be achieved that the high-efficiency low energy consumption of sludge evaporates.
(2) the solar radiant energy heat accumulation of collection can be stored extra solar energy optical-thermal by fuse salt,
When the illumination such as night or rainy days deficiency condition, continue to ensure sludge as sludge drying heat source using the photo-thermal of storage
The continuous uninterrupted operation of anhydration system.
(3) mixing to desiccation wet mud by dewatered sludge and the moisture content 80% or so by desiccation to moisture content lower than 30%
It closes, reduces the moisture content of feed sludge, desiccation machine is made to evaporate total Water reduction within the unit time；The dewatered sludge particle of back-mixing
Play the role of " thermonuclear ", wet mud is adhered to dewatered sludge surface, forms thin layer, increases the exposed area of material, enhance
The rate of the outside mass transfer of moisture makes mixing sludge moisture content lower than stagnant zone moisture content section, avoids the unfavorable shadow of stagnant zone
It rings, reduces system energy consumption.
The utility model, can be smaller in occupied area by the way that solar energy optical-thermal and disk sludge drying technique are coupled
Under the conditions of realize the desiccation of sludge low cost, have certain dissemination.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the system schematic of the utility model embodiment；
Fig. 2 is the structural schematic diagram of slot type parabolic concentrator heat collector in the utility model embodiment.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through
Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with
It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.
As shown in Figure 1, solar energy thermal coupling sludge drying system, including the storage of groove type solar collecting system, solar energy
Hot systems and sludge drying system；Wherein:
The groove type solar collecting system includes several groove type paraboloid concentrating collectors 1 connected in series and parallel and defeated
Send the Heat-transfer Oil Pump 2 of conduction oil；(first series connection group in series, then each string between such as multiple groove type paraboloid concentrating collectors
Connection group carries out parallel connection again).
The solar energy heat-storage system includes fuse salt high-temperature tank 4, fuse salt cryogenic tank 5, is set to the fuse salt height
Melting salt pump 6 between warm tank 4 and fuse salt cryogenic tank 5 and the heat exchange for conduction oil and fuse salt progress heat exchange
Device 3；It is switched between the groove type solar collecting system and solar energy heat-storage system by threeway valve group；
The sludge drying system includes wet mud feed bin 7, and it is defeated that the discharge port of the wet mud feed bin 7 is provided with wet mud
Machine 8 (drag conveyor can be used) is sent, the discharge port of the wet mud conveyer 8 is connect with the feed inlet of disk desiccation machine 9,
The heating channel of the disk desiccation machine 9 is connected to the conduction oil channel of groove type paraboloid concentrating collector 1；
The discharge port of the disk desiccation machine 9 is provided with dewatered sludge conveyer 10 (can use water-cooled screw conveyor)；
The discharge port of the dewatered sludge conveyer 10 is provided with vibrating screen 11, returns through the filtered a part of dewatered sludge of the vibrating screen 11
The discharge outlet for mixing the wet mud conveyer 8 is mixed with wet mud, and rest part dewatered sludge is delivered to dewatered sludge feed bin 12；
The waste vapour outlet of the disk desiccation machine 9 is provided with deduster 13 (can use cyclone dust collectors), and the deduster 13 connects
There is condenser 14, the condenser 14 is connected with air-introduced machine 15, and the air outlet of the air-introduced machine 15 is provided with exhaust gas treatment unit
16。
With reference to Fig. 2, the groove type paraboloid concentrating collector 1 includes steel structure support 19, on the steel structure support 19
Trough reflectors 17 are installed, further include the evacuated collector tube 18 positioned at 17 top of trough reflectors, the vacuum heat-collecting
Pipe 18 is barrel forms, and internal layer is stainless steel tube, coating for selective absorption is coated with, for conveying conduction oil；Outer layer is glass
Pipe plus the metal bellows at both ends.The groove type paraboloid concentrating collector 1 is provided with solar energy automatic tracking control system, too
Positive energy automatic following control system can be realized using known features in the prior art, no longer be repeated.
The course of work is as follows:
Groove type paraboloid concentrating collector 1 is by series-parallel arrangement, under the action of solar energy automatic tracking control system,
The sunlight that 80~100 times are converged accurately is focused in evacuated collector tube 18 by trough reflectors 17, in thermal-collecting tube inner tube
The conduction oil (heat transfer medium) of flowing absorbs the solar radiant energy after focusing, and 400 DEG C or so of high temperature is heated to, as sludge
Desiccation heat source is transported to disk desiccation machine hollow disc liner.Moisture content 80%, the wet mud that temperature is 30 DEG C pass through dedicated close
Automobile transportation is closed to wet mud feed bin 7,9 pan feeding rotary valve of disk desiccation machine is sent by the sludge drag conveyor of orlop.?
Rotary shaft with disc pushes the lower sludge into desiccation machine to move from desiccation machine import to export direction and block-like dirt
Mud is broken, while the moisture in sludge, by high temperature heat conductive oil heating evaporation, the vapor evaporated is extracted out by air-introduced machine 15.Due to
Thermally conductive oil temperature may be up to 400 DEG C, therefore the high-efficiency evaporating of sludge vapor may be implemented.Conduction oil after heat exchange returns to
Solar energy heating is absorbed into groove type paraboloid concentrating collector.Sludge after desiccation drop down onto water-cooled screw conveyor be cooled to it is small
In 50 DEG C, it is then sent to vibrating screen 11, the sludge part for sieving collection returns to entrance with moisture content 80% or so to dry
Dampness elimination sludge is mixed, and is made mixing sludge moisture content lower than stagnant zone moisture content section, is avoided the adverse effect of stagnant zone, together
The evaporation efficiency of Shi Tisheng sludge drying machine, remaining send to dewatered sludge feed bin 12.
Disk desiccation machine generate carrier gas in usually contain amount more dusty, simultaneously containing hydrogen sulfide, ammonia and other
Micro stench and corrosive gas, to prevent exhaust direct emission from polluting the environment, the outlet exhaust of disk desiccation machine exists
Under 15 swabbing action of air-introduced machine after cyclone dust collectors 13 remove dust, condenser 14 (water cooling heat exchanger) condensation, it is sent to exhaust gas
Processing unit 16 carries out harmless treatment by the modes such as washing or burning.Sewage under water cooling heat exchanger condensation is sent at sewage
Manage station processing.To prevent cannot running for air-introduced machine accidental shutdown bring system, air-introduced machine preferably presses the using and the reserved setting.
Strong (such as the meridian hour) period is irradiated in solar energy, triple valve between collecting system and heat reservoir is opened, melts
Melt fuse salt in salt cryogenic tank 5 to be transported in heat exchanger 3 through melting salt pump 6, exchange heat with high temperature heat conductive oil, after heating
Fuse salt is sent into 4 heat accumulation of fuse salt high-temperature tank.Under the conditions of the illumination such as night or rainy days are insufficient, the fuse salt in high-temperature tank is again
Deliver heat to conduction oil by heat exchanger 3, as the heating source of sludge drying, ensure sludge drying system it is continuous not
Intermitten service.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, it is made under the premise of not departing from the conceptions and principles of the utility model to be equal
Variation and modification, should belong to the range of the utility model protection.
Claims (6)
1. solar energy thermal coupling sludge drying system, it is characterised in that: including groove type solar collecting system, solar energy heat-storage
System and sludge drying system；
The groove type solar collecting system includes several groove type paraboloid concentrating collectors (1) connected in series and parallel and conveying
The Heat-transfer Oil Pump (2) of conduction oil；
The solar energy heat-storage system includes fuse salt high-temperature tank (4), fuse salt cryogenic tank (5), is set to the fuse salt height
Melting salt pump (6) between warm tank and fuse salt cryogenic tank and the heat exchange for conduction oil and fuse salt progress heat exchange
Device (3)；
The sludge drying system includes wet mud feed bin (7), and the discharge port of the wet mud feed bin is provided with wet mud conveying
The discharge port of machine (8), the wet mud conveyer is connect with the feed inlet of disk desiccation machine (9), and the disk desiccation machine adds
The passage of heat is connected to the conduction oil channel of groove type paraboloid concentrating collector.
2. solar energy thermal coupling sludge drying system as described in claim 1, it is characterised in that: the groove type paraboloid is poly-
Light heat collector includes steel structure support (19), and trough reflectors (17) are equipped on the steel structure support, further includes being located at slot
The evacuated collector tube (18) on formula reflective mirror top, the evacuated collector tube are barrel forms, and internal layer is stainless steel tube, are coated with choosing
Selecting property absorber coatings, for conveying conduction oil；Outer layer is the metal bellows that glass tube adds both ends.
3. solar energy thermal coupling sludge drying system as described in claim 1, it is characterised in that: the groove type solar collection
It is switched between hot systems and solar energy heat-storage system by threeway valve group.
4. solar energy thermal coupling sludge drying system as described in claim 1, it is characterised in that: the disk desiccation machine
Waste vapour outlet is provided with deduster (13), and the deduster is connected with condenser (14), and the condenser is connected with air-introduced machine
(15), the air outlet of the air-introduced machine is provided with exhaust gas treatment unit (16).
5. such as the described in any item solar energy thermal coupling sludge drying systems of Claims 1-4, it is characterised in that: the circle
The discharge port of disk desiccation machine is provided with dewatered sludge conveyer (10)；The discharge port of the dewatered sludge conveyer is provided with vibrating screen
(11), discharge outlet and wet mud through the filtered a part of dewatered sludge back-mixing of the vibrating screen to the wet mud conveyer
Mixing, rest part dewatered sludge are delivered to dewatered sludge feed bin (12).
6. such as the described in any item solar energy thermal coupling sludge drying systems of Claims 1-4, it is characterised in that: the slot
Formula parabolic concentrator heat collector is provided with solar energy automatic tracking control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441099.2U CN208250141U (en) | 2018-03-30 | 2018-03-30 | Solar energy thermal coupling sludge drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441099.2U CN208250141U (en) | 2018-03-30 | 2018-03-30 | Solar energy thermal coupling sludge drying system |
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| Publication Number | Publication Date |
|---|---|
| CN208250141U true CN208250141U (en) | 2018-12-18 |
Family
ID=64638743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820441099.2U Active CN208250141U (en) | 2018-03-30 | 2018-03-30 | Solar energy thermal coupling sludge drying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409095A (en) * | 2018-03-30 | 2018-08-17 | 江苏中顺节能科技有限公司 | Solar energy thermal coupling sludge drying system |
| CN113683325A (en) * | 2021-09-07 | 2021-11-23 | 山东大学 | System and method for preparing sulphoaluminate cement by solar heat storage dried sludge |
-
2018
- 2018-03-30 CN CN201820441099.2U patent/CN208250141U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409095A (en) * | 2018-03-30 | 2018-08-17 | 江苏中顺节能科技有限公司 | Solar energy thermal coupling sludge drying system |
| CN113683325A (en) * | 2021-09-07 | 2021-11-23 | 山东大学 | System and method for preparing sulphoaluminate cement by solar heat storage dried sludge |
| WO2023035197A1 (en) * | 2021-09-07 | 2023-03-16 | 山东大学 | System and method for preparing sulphoaluminate cement by drying sludge via solar heat storage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Solar optic-thermal coupling sludge drying system Effective date of registration: 20191107 Granted publication date: 20181218 Pledgee: Nanjing Bank Co.,Ltd. Chengnan Branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY CO.,LTD. Registration number: Y2019320000269 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220218 Granted publication date: 20181218 Pledgee: Nanjing Bank Co.,Ltd. Chengnan Branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY CO.,LTD. Registration number: Y2019320000269 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Solar photo-thermal coupling sludge drying system Effective date of registration: 20230110 Granted publication date: 20181218 Pledgee: Bank of Nanjing Co.,Ltd. Jiangning sub branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY CO.,LTD. Registration number: Y2023980030511 |