CN103846055A - Heat recovery method and system for recovering energy in water-rich biomass - Google Patents
Heat recovery method and system for recovering energy in water-rich biomass Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
- C10L9/086—Hydrothermal carbonization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- 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
-
- 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
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
-
- 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
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- Thermal Sciences (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a heat recovery method and system for recovering energy in water-rich biomass. The method comprises the steps of putting the water-rich biomass with the content of water of less than 99.9% into a high-pressure closed container, and heating the high-pressure closed container until the temperature T is more than or equal to 100 DEG C and less than 250 DEG C and the pressure P is more than or equal to 0.1MPa and less than 3.97MPa; maintaining the temperature and the pressure in the high-pressure closed container to be constant and standing still for a period of time to enable the water-rich biomass to be liquefied and various biomasses and solid inorganic impurities to be separated; heating the high-pressure closed container until the temperature T is more than or equal to 100 DEG C and less than 350 DEG C and the pressure P is more than or equal to 0.1MPa and less than 16.52MPa, and enabling most biomass components not to be chemically decomposed; boiling the water in the high-pressure closed container, and then guiding out high-temperature and high-pressure water vapor, recycling the energy and enabling the water-rich biomass to be dehydrated; stopping heating, cooling the high-pressure closed container and recovering waste heat; and opening the high-pressure closed container, and taking out the separated and dehydrated dry biomass and the solid inorganic impurities, wherein the separated and dehydrated dry biomass is used for energy recovery, and the separated and solid inorganic impurities are used for mineral substance and heavy metal recovery.
Description
Technical field:
The aqueous solid, liquid that the present invention relates to high COD content are disposed field, relate in particular to a kind ofly to reclaim the heat recovery method of energy in rich aquatic material and utilize the heat recovery system of energy in the rich aquatic material of recovery of the method.
Background technology:
In today of industrial or agricultural high speed development, pollution emission reduction, energy shortage and carbon emission problem have become the focus that countries in the world are paid close attention to, current most of developed country has started energy-saving and emission-reduction and has found low-carbon energy, to ensure social sustainable development, therefore how energy-saving and emission-reduction and the new low-carbon energy of exploitation have become new focus and the vital task of science and industrial applied research.Urbanization Progress is the notable feature of industrial civilization, the mankind yard up, Industrial agglomeration, global economic integration, industrial civilization has brought up modern metropolitan cities, also causes a large amount of waste water and organic solid castoff (as municipal sludge and changing food waste) to pollute simultaneously.The organic solid liquid debris of the overwhelming majority are actually rich aquatic material, and the aquatic material of described richness common are: the rich aquatic materials such as excreta (animal wastes etc.) that the animal feedings such as concentrate that the sewage disposal of high COD content produces, mud, livestock and poultry produce, changing food waste (dish leaf, pericarp, leftovers, grease etc.), garden garbage (branches and leaves that gardens pruning produces etc.), farmland rubbish (crop).At present the processing of the aquatic material of richness be common are to landfill, burning, supercritical oxidation, but it all cannot low cost and effectively solves the problem that it reclaims at pollutant control and energy.Especially the large energy consuming in rich aquatic material dehydration and drying process is not recycled, and this part energy that dehydration and drying process consumes cannot all be offset or just offset to a large amount of low-carbon (LC) energy that contain in the aquatic material of richness after dehydration and drying.Cause like this biomass fuel that originally can become high-quality low-carbon energy, due to be rich in water become very thorny, time-consuming taking a lot of work, the pollutant that processing cost is huge.Therefore, how the energy of dehydration consumption reclaimed with secondary utilization and how the energy of the aquatic material of richness changed into available high-quality low-carbon (LC) biomass energy, remaining in the world in the last hundred years always in a difficult problem urgently to be resolved hurrily.
Traditional aquatic substance processing method of richness at present, taking sludge incineration method as example, generally to be 70%-90% by moisture content mud directly burns, then the ash content obtaining is carried out to landfill or curing die cast uses as New Building Materials, it can only reach the effect of sludge reduction, does not produce available energy.During due to burning sludge, the moisture evaporator strip in mud is walked heat, generally needs outside to add combustion adjuvant.Therefore, directly burning not only cannot be reclaimed the calorific value containing in mud, also serious consumes energy, and therefore it is not energy-conservation, uneconomical practicality.
The another kind of new method of utilizing overcritical or subcritical oxidative treatment mud of just having risen at present, to be contained in the mud in superhigh-temperature and-pressure reactor and to be forced into the high-temperature and high-pressure conditions of overcritical (temperature >=374 DEG C, pressure >=22MPa) or subcritical (200 DEG C～374 DEG C of temperature, pressure 10MPa～22MPa), under this temperature and pressure, mud to be carried out to direct oxidation processing; Most of material and oxygen under this temperature and pressure in mud react, by various material exhaustive oxidations or decomposition in mud.The method has Treatment of Sludge advantage thoroughly, and the heat of its generation can be used as using energy source after reclaiming.But its complex structure, manufactures very difficultly, thereby its equipment investment cost is extremely expensive, and it need to move under HTHP oxygen enrichment state, and consumes energy is large, and subsidiary potential safety hazard is higher.In addition, due to the complicated component of mud, conventionally there is corrosivity, in HTHP situation, more easily superhigh-temperature and-pressure reactor is caused damage, therefore bring expensive plant maintenance and replacement cost.The manufacturing cost of superhigh-temperature and-pressure reactor is high and operation difficulty is large, although it can produce a large amount of heat energy, compared with the energy that expends with it, manufacture, operating cost, its cost performance is low, therefore itself and impracticable.
As can be seen here, can in the minimizing of the aquatic material pollutant of richness, stabilisation, reclaim the chemical energy in rich aquatic material, the method for conscientiously implementing " save the energy, reduce discharge, cost constraint, environmental friendliness, comprehensive utilization " principle need exploitation.
Summary of the invention:
One of object of the present invention is to provide the heat recovery method of energy in the rich aquatic material of a kind of novel recovery.
The technical scheme that realizes the object of the invention one is: a kind of heat recovery method that reclaims energy in rich aquatic material, and it comprises the following steps:
Step 1): aquatic the richness of moisture content < 99.9% material is put into a high-pressure closed vessel, high-pressure closed vessel is heated;
Step 2): one-level temperature-rise period, temperature in control high-pressure closed vessel is 250 DEG C of 100 DEG C≤T <, controlled pressure is within the scope of 0.1MPa≤P < 3.97MPa, make rich aquatic material liquefaction, and there is not chemical breakdown in most biomass components, in mixed aqueous solution state, keep in high-pressure closed vessel constant and standing a period of time of temperature and pressure, the various living beings various solid inorganic impurity contained with it in rich aquatic material are separated, due to proportion difference, heavier solid inorganic contamination precipitation is to the bottom of the interior aqueous solution of high-pressure closed vessel, and lighter living beings float to the top of the aqueous solution in high-pressure closed vessel,
Step 3): secondary temperature-rise period, by step 2), after rich aquatic material is separated with solid inorganic impurity, temperature in control high-pressure closed vessel is 350 DEG C of 100 DEG C≤T <, controlled pressure is within the scope of 0.1MPa≤P < 16.52MPa, make most of biomass components that chemical breakdown not occur, water in high-pressure closed vessel seethes with excitement simultaneously, the high-temperature high-pressure steam of generation with impurity, derive high-temperature high-pressure steam, energy is recycled, and made rich aquatic material dehydration;
Step 4): through step 3), stop heating, cooling high-pressure closed vessel recovery waste heat, then open the lid of high-pressure closed vessel, take out living beings and solid inorganic impurity after the inner dehydration and drying having separated, living beings after dehydration and drying reclaim for energy, and solid inorganic impurity reclaims for mineral matter and heavy metal.
The aquatic material of described richness is aqueous solid and the liquid of various high COD content, as comprise: municipal wastewater and other industrial or agricultural are military produces the sewage producing, and one or more mixture of the rich aquatic material such as the excreta that produces of the animal feeding such as the concentrate of the high COD content producing after various purified treatment, mud, livestock and poultry, changing food waste, garden garbage, farmland rubbish.
In order to simplify the operating procedure of intensification, at actual mechanical process, can will described in object one, reclaim the step 2 described in the heat recovery method of energy in rich aquatic material) " one-level temperature-rise period " and step 3) " secondary temperature-rise period " be merged into disposable temperature-rise period, disposable rising is also controlled temperature in high-pressure closed vessel 350 DEG C of 100 DEG C≤T <, and controlled pressure is within the scope of 0.1MPa≤P < 16.52MPa.
For better technique effect, reclaim the heat recovery method of energy in rich aquatic material described in the object of the invention one, can also be specially following characteristics:
1. the heat recovery method of energy in the rich aquatic material of recovery described in, also comprise step 5): will be through step 3) in the high-temperature high-pressure steam with impurity of deriving as the first heat transferring medium input heat exchanger, the second clean heat transferring medium is passed into heat exchanger simultaneously, by step 3) the whole heat exchanges of heat of the high-temperature high-pressure steam with impurity that produces are to clean the second heat transferring medium output, the heat of the second heat transferring medium is utilized simultaneously, realize the recycling to the aquatic material dehydration of richness institute energy requirement.
2. the step 1 described in) mode of heating of mesohigh closed container is conduction oil dielectric heating, electrical heating, high frequency, microwave, coal, oil, natural gas, solar energy, remaining waste heat mode, or other mode of heating.
3. also comprise step 8): the energy way of recycling of the living beings after the dehydration and drying taking out in described step 4 is burning, and the heat release of combustion process is for step 1)～3) heating process to reclaim its energy.
4. also comprise step 9): by step 8) in the ash content that produces of burning by recycling, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
5. also comprise step 10): described step 4) the inorganic matter impurity that produces is by recycling, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
6. step 2) temperature of described " one-level temperature-rise period " is controlled at 110 DEG C～200 DEG C, and pressure is within the scope of 0.14MPa～1.55MPa; Or
7. step 2) temperature of described " one-level temperature-rise period " is controlled at 120 DEG C～180 DEG C, and pressure is within the scope of 0.20MPa～1.00MPa; Or
8. step 2) temperature of described " one-level temperature-rise period " is controlled at 130 DEG C, and pressure is 0.27MPa; Or
9. step 2) temperature of described " one-level temperature-rise period " is controlled at 150 DEG C, and pressure is 0.48MPa; Or
10. step 2) temperature of described " one-level temperature-rise period " is controlled at 170 DEG C, and pressure is 0.79MPa; Or
11. steps 3) temperature of described " secondary temperature-rise period " is controlled at 120 DEG C～300 DEG C, and pressure is within the scope of 0.2MPa～8.58MPa; Or
12. steps 3) temperature of described " secondary temperature-rise period " is controlled at 150 DEG C～290 DEG C, and pressure is within the scope of 0.48MPa～7.44MPa; Or
13. steps 2) temperature of described " secondary temperature-rise period " is controlled at 220 DEG C, and pressure is 2.32MPa; Or
14. steps 2) temperature of described " secondary temperature-rise period " is controlled at 250 DEG C, and pressure is 3.97MPa; Or
15. steps 2) temperature of described " secondary temperature-rise period " is controlled at 280 DEG C, and pressure is 6.41MPa; Or
16. steps 2) temperature of described " secondary temperature-rise period " is controlled at 320 DEG C, and pressure is 11.28MPa; Or
Step 4 described in 17.) in the aquatic material dehydration and drying of richness after moisture content reach 0%～50%; Or
Step 4 described in 18.) in take out the aquatic material dehydration and drying of richness after moisture content reach 3%～20%; Or
Step 4 described in 19.) in take out the aquatic material dehydration and drying of richness after moisture content reach 10%～15%; Or
Step 4 described in 20.) in take out the aquatic material dehydration and drying of richness after moisture content reach 30%; Or
Step 4 described in 21.) in take out the aquatic material dehydration and drying of richness after moisture content reach 40%; Or
Step 4 described in 22.) in take out the aquatic material dehydration and drying of richness after moisture content reach 7%; Or
Step 4 described in 23.) in take out the aquatic material dehydration and drying of richness after moisture content reach 1%.
Step 1 described in 24.) mode of heating of mesohigh closed container is while being conduction oil medium, also comprises step 16): by step 4) in the waste heat that reclaims of cooling high-pressure closed vessel for the heating of conduction oil medium.
25. also comprise step 17): step 4) in the waste heat that reclaims of cooling high-pressure closed vessel can be used for the rich aquatic material of mummification
Recovery method in above-mentioned 1, can also be specially following characteristics:
(1) described the second heat transferring medium is clean water, gas, liquid metal or other materials that can carry out heat exchange.Wherein said clean water can be desalted water, deionized water or distilled water.
(2) also comprise step 6): will be through step 5) heat of the second heat transferring medium of output is for electricity generation system generating.
(3) also comprise step 7): will be through step 5) heat of the second heat transferring medium of output is for heating system heating or other industrial or agricultural application of municipal administration, industrial or agricultural and military installations etc.
(4) also comprise step 11): to step 5) in the waste water and the waste gas that produce after high-temperature high-pressure steam with impurity and the second heat transferring medium heat exchanging process recycle and apply.
(5) before described the second heat transferring medium input heat exchanger, preheat.
(6) also comprise step 19): by the second heat transferring medium for step 4) cooling procedure of mesohigh closed container to be to reclaim its heat energy, and realizes preheating the second heat transferring medium.
The technical characterictic of the recovery method described in above-mentioned (2), can also be specially following characteristics:
1. also comprise step 12): by the used heat producing after the generating of described electricity generation system for step 1) the heating of high-pressure closed vessel.
2. also comprise step 13): the used heat producing after described electricity generation system generating is heated for cities and towns heating system or other industrial or agricultural application.
3. also comprise step 14): in the time that the mode of heating of high-pressure closed vessel is conduction oil dielectric heating, the used heat producing after described electricity generation system generating can be used for the heating of conduction oil medium.
4. also comprise step 15): the used heat producing after the generating of described electricity generation system also be can be used for to step 5) in the preheating of the second heat transferring medium.
The technical characterictic of the recovery method described in above-mentioned (5), can also be specially following characteristics:
1. by input the second heat transferring medium before heat exchanger for step 4) cooling procedure of mesohigh closed container to be to reclaim its waste heat, realizes thus preheating the second heat transferring medium.
The heat recovery method of energy in the rich aquatic material of recovery of application technical solution of the present invention, has following technique effect:
1. the spent energy of rich aquatic material dehydration and drying process is recycled, and effects of energy saving and emission reduction is good, greatly reduces rich aquatic material cost of disposal.
2. the large energy containing in the living beings after dehydration and drying is recycled fully.Greatly reduce rich aquatic material cost of disposal.
3. the energy of pair dehydration consumption reclaims and secondary utilization, and the energy of the aquatic material of richness is changed into available new forms of energy.Can produce new forms of energy, being conducive to turns waste into wealth rich aquatic organism matter, is a major transformation of rich aquatic material disposal technology, and the value of rich aquatic material is fully developed.
4. the present invention reclaims the heat recovery method employing high-pressure closed vessel oil bath heating of energy in rich aquatic material, is heated evenly; The energy consumption that closed environment is realized increasing temperature and pressure is low, can also fully aquatic richness material be burned to liberated heat and transfer in the high-temperature steam of sludge dewatering generation.
5. adopt high-pressure closed vessel, for superhigh-temperature and-pressure reactor, its manufacture difficulty reduces greatly, and manufacturing cost also reduces greatly, and the expense of operation also reduces greatly, and security and stability all strengthen greatly.
6. a large amount of high-temperature steams that produce pass into heat exchanger conversion and turn to clean high temperature and high pressure steam, can, all for heating system heating or other industrial or agricultural application of municipal administration, industrial or agricultural and military installations etc., produce new forms of energy, and realization is turned waste into wealth.
7 high temperature and high pressure steams can be used for preheating of the preheating of high-pressure closed vessel and the second heat transferring medium of low temperature for the used heat producing after generating electricity, and realize fully recycling of the energy, more environmental protection.
8. in the time that the mode of heating of high-pressure closed vessel is conduction oil dielectric heating, the dehydration and drying living beings that produce through high-pressure closed vessel can drop into directly burning in heat conducting oil boiler, reclaim heat and be used for heating conduction oil, the energy resource consumption in aquatic richness material drying process is dropped to minimum.
Two of object of the present invention is to provide a kind of recovery system of the novel aquatic matter energy of richness.
The technical scheme that realizes the object of the invention two is: the system that reclaims the heat recovery method of energy in rich aquatic material described in a kind of application purpose one, it is characterized in that: the heat that at least comprises drying equipment and high-temperature high-pressure steam is collected retracting device, and described drying equipment comprises high-pressure closed vessel and the heater for high-pressure closed vessel is heated.
For better technique effect, reclaim the system of energy in rich aquatic material described in the object of the invention two, its technical characterstic can also be specially following characteristics:
1. also comprise ash content disposal plant, carry out the step 1 of recovery method as claimed in claim 1)-step 4) operation after isolate solid inorganic impurity and send into solid inorganic impurity recovery and processing system and process, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
2. also comprise biomass combustion boiler and solid inorganic impurity recovery and processing system, high-pressure closed vessel carries out the step 1 of recovery method as claimed in claim 1)-step 4) operation after living beings after isolated dehydration and drying send into biomass combustion boiler burning, the ash that burning produces is distributed into the processing of solid inorganic impurity recovery and processing system, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
3. described in, heater is made up of the hot oil heater that high-pressure closed vessel is heated and heat conducting oil boiler; Described heat conducting oil boiler is connected with hot oil heater pipeline; Described high-pressure closed vessel and hot oil heater one.
4. also comprise that high-pressure closed vessel heat reclaim unit is for reclaiming the waste heat of high-pressure closed vessel.The waste heat of the high-pressure closed vessel of its recovery is for the heating of the rich aquatic material of mummification, the second heat transferring medium.
5. described in, the heat of high-temperature high-pressure steam collection retracting device is heat exchanger, and high-temperature high-pressure steam, as the first heat transferring medium of heat exchanger, also comprises the second heat transferring medium feeding mechanism and waste water and gas collection processing system implementing; The steam output end of described high-pressure closed vessel is connected with the first heat transferring medium input pipeline of heat exchanger, and the second heat transferring medium input of described heat exchanger is connected with the second heat transferring medium feeding mechanism pipeline; The waste water and gas output of described heat exchanger is connected with pollutant treatment device.
Further, the system of energy in the rich aquatic material of recovery that comprises the technical characterstic described in above-mentioned 3, can also be specially following characteristics: also comprise high-pressure closed vessel heat reclaim unit, the waste heat of the high-pressure closed vessel of recovery is for the heating to described conduction oil.
Further, the system of energy in the rich aquatic material of recovery that comprises the technical characterstic described in above-mentioned 5, can also be specially following characteristics:
1) in the time that the second heat transferring medium of heat exchanger is clean water, water is converted to high-temperature high-pressure steam output, the high-temperature high-pressure steam (the second heat transferring medium) of described output is connected with steamer electricity generation system, and the heat of the second heat transferring medium is used for to generating.Or
2) in the time that the second heat transferring medium of heat exchanger is clean water, water is converted to the output of high-temp liquid water, and the high-temp liquid water (the second heat transferring medium) of described output is for heating system heating or other industrial or agricultural application of municipal administration, industrial or agricultural and military installations etc.
Further, comprise above-mentioned 2) described in the rich aquatic material of recovery of technical characterstic in the system of energy can also be specially following characteristics:
(1) also comprise high-pressure closed vessel preheating device and the second heat transferring medium preheating equipment, the used heat output of described electricity generation system is connected with high-pressure closed vessel preheating device and the second heat transferring medium preheating equipment.
The system of energy in the rich aquatic material of recovery described in the object of the invention two, has following outstanding advantages:
1. the spent energy of rich aquatic material dehydration and drying process is recycled, and effects of energy saving and emission reduction is good, greatly reduces rich aquatic material cost of disposal.
2. the large energy containing in the living beings after dehydration and drying is recycled fully.Greatly reduce rich aquatic material cost of disposal.
3. the energy of pair dehydration consumption reclaims and secondary utilization, and the energy of the aquatic material of richness is changed into available new forms of energy.Can produce new forms of energy, being conducive to turns waste into wealth rich aquatic organism matter, is a major transformation of rich aquatic material disposal technology, and the value of rich aquatic material is fully developed.
4. the present invention reclaims the heat recovery method employing high-pressure closed vessel oil bath heating of energy in rich aquatic material, is heated evenly; The energy consumption that closed environment is realized increasing temperature and pressure is low, can also fully aquatic richness material be burned to liberated heat and transfer in the high-temperature steam of sludge dewatering generation.
5. adopt high-pressure closed vessel, for superhigh-temperature and-pressure reactor, its manufacture difficulty reduces greatly, and manufacturing cost also reduces greatly, and the expense of operation also reduces greatly, and security and stability all strengthen greatly.
6. a large amount of high-temperature steams that produce pass into heat exchanger conversion and turn to clean high temperature and high pressure steam, can, all for heating system heating or other industrial or agricultural application of municipal administration, industrial or agricultural and military installations etc., produce new forms of energy, and realization is turned waste into wealth.
7. high temperature and high pressure steam can be used for preheating of the preheating of high-pressure closed vessel and the second heat transferring medium of low temperature for the used heat producing after generating electricity, and realizes fully recycling of the energy, more environmental protection.
8. in the time that the mode of heating of high-pressure closed vessel is conduction oil dielectric heating, the dehydration and drying living beings that produce through high-pressure closed vessel can drop into directly burning in heat conducting oil boiler, reclaim heat and be used for heating conduction oil, the energy resource consumption in aquatic richness material drying process is dropped to minimum.
Brief description of the drawings:
Fig. 1 is the embodiment flow chart that reclaims the heat recovery method of energy in rich aquatic material described in the object of the invention one;
Fig. 2 is the example structure schematic diagram of energy-recuperation system in rich aquatic material described in the object of the invention two.
Detailed description of the invention:
Below in conjunction with attached Fig. 1 and 2, embodiments of the invention are described further.
Embodiment mono-:
As shown in Figure 1, a kind of heat recovery method that reclaims energy in rich aquatic material, comprises the following steps:
Step 1): aquatic the richness of moisture content < 99.9% material is put into a high-pressure closed vessel, high-pressure closed vessel is heated;
Step 2): one-level temperature-rise period, temperature in control high-pressure closed vessel is at 180 DEG C, pressure is at 1.0MPa, make rich aquatic material liquefaction, and there is not chemical breakdown in most biomass components, in mixed aqueous solution state, the interior temperature and pressure of maintenance high-pressure closed vessel is constant and within standing 15 minutes, make the living beings in rich aquatic material separate with solid inorganic impurity, due to proportion difference, heavier solid inorganic contamination precipitation is to the bottom of high-pressure closed vessel, and lighter living beings float to the top of high-pressure closed vessel;
Step 3): secondary temperature-rise period, by step 2) rich aquatic material is separated with solid inorganic impurity after, temperature in control high-pressure closed vessel is at 260 DEG C, pressure was 5MPa approximately 20 minutes, there is not chemical breakdown in overwhelming majority biomass components, water in high-pressure closed vessel seethes with excitement simultaneously, produces the impure high-temperature high-pressure steam of high temperature, derives high-temperature high-pressure steam and makes the living beings dehydration and drying in rich aquatic material.
Step 4): through step 3) after pressure and temperature in high-pressure closed vessel decline gradually, now stop heating, cooling high-pressure closed vessel simultaneously recovery waste heat, then open the lid of high-pressure closed vessel, take out inner dehydration and drying living beings and the solid inorganic impurity having separated, dehydration surplus ratio is 1% left and right.[described dehydration surplus ratio is the percentage that after dehydration, water content accounts for former water content]
Step 5): will be through step 3) in the high-temperature high-pressure steam of deriving as the first heat transferring medium input heat exchanger, the second clean low temperature heat transferring medium is passed into heat exchanger simultaneously, utilizing step 3) the whole heat exchanges of heat of the high-temperature high-pressure steam that produces are to clean the second heat transferring medium output, the heat of the second heat transferring medium to output utilizes simultaneously, realizes the recycling to the aquatic material dehydration and drying of richness institute energy requirement.
In the present embodiment, the mode of heating of implementing high-pressure closed vessel is conduction oil dielectric heating.In practical application, it can be electrical heating, high frequency, microwave, coal, oil, natural gas, solar energy, remaining waste heat mode, or other mode of heating.
As shown in Figure 1, reclaim in the embodiment of the heat recovery method of energy in rich aquatic material, also comprise following steps:
1. step 3) living beings after the dehydration and drying that produces send into burning in heat conducting oil boiler, burning heat release is for step 1)～3) high-pressure closed vessel and the heating process of conduction oil medium.
2. step 5) in the heat of the second heat transferring medium of output for heating system heating or other industrial or agricultural application of electricity generation system generating, municipal administration, industrial or agricultural and military installations etc.
3. pair step 5) in the waste water and the waste gas that produce after high-temperature high-pressure steam with impurity and the second heat transferring medium heat exchanging process recycle and apply.
4. the used heat producing after electricity generation system generating described in is for step 1) the preheating of heating, the second heat transferring medium of heating, conduction oil medium of high-pressure closed vessel.
5. the waste heat that cooling high-pressure closed vessel reclaims can be used for preheating and the heating of rich aquatic material before the heating, the second heat transferring medium input heat exchanger of conduction oil medium.
6. the waste water and the waste gas that in high-temperature high-pressure steam and the second heat transferring medium heat exchanging process, produce recycle and apply.
7. the ash content that the living beings of burning after dehydration and drying produce is disposed, and reclaims the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein simultaneously.
In actual applications, step 5) the second described heat transferring medium can be: clean water, gas, liquid metal or other materials that can carry out heat exchange.Described clean water can be desalted water, deionized water or distilled water.
In actual applications, because the aquatic material composition of richness is very complicated and the content ratio variation of each composition, therefore, according to the requirement of the composition of the aquatic material of richness and processing, temperature and pressure in one-level temperature-rise period can be selected in following scope, to reach the best technique effect of separating biomass and solid inorganic impurity:
1. 110 DEG C～200 DEG C of temperature, pressure is within the scope of 0.14MPa～1.55MPa.
2. 120 DEG C～180 DEG C of temperature, pressure is within the scope of 0.20MPa～1.00MPa.
3. 130 DEG C of temperature, pressure is 0.27MPa.
4. 150 DEG C of temperature, pressure is 0.48MPa.
5. 170 DEG C of temperature, pressure is 0.79MPa.
And the temperature and pressure in secondary temperature-rise period can be selected in following scope, to reach the best technique effect of rich aquatic material dehydration and drying:
1. 100 DEG C～350 DEG C of temperature, pressure is within the scope of 0.1MPa～16.52MPa.
2. 120 DEG C～300 DEG C of temperature, pressure is within the scope of 0.2MPa～8.58MPa.
3. 150 DEG C～290 DEG C of temperature, pressure is within the scope of 0.48MPa～7.44MPa.
4. 220 DEG C of temperature, pressure is 2.32MPa.
5. 250 DEG C of temperature, pressure is 3.97MPa.
6. 280 DEG C of temperature, pressure is 6.41MPa.
7. 320 DEG C of temperature, pressure is 11.28MPa..
The control of time by above-mentioned one-level and the heating power in secondary temperature-rise period, temperature and pressure and each process thereof, can make the moisture content after the aquatic material dehydration and drying of richness of high-pressure sealed cooling rear taking-up reach following level, to meet the needs of actual treatment.
1. the moisture content after rich aquatic material dehydration and drying reaches 0%～50%;
2. the moisture content after rich aquatic material dehydration and drying reaches 3%～20%;
3. the moisture content after rich aquatic material dehydration and drying reaches 10%～15%;
4. the moisture content after rich aquatic material dehydration and drying reaches 30%;
5. the moisture content after rich aquatic material dehydration and drying reaches 40%;
6. the moisture content after rich aquatic material dehydration and drying reaches 7%.
7. the moisture content after rich aquatic material dehydration and drying reaches 1%.
Shown in table one, be one-level temperature-rise period and power consumption, dehydration artifact matter moisture content and the production capacity situation of secondary temperature-rise period in different operational factor situations in embodiment.
In the rich aquatic material of recovery that the present invention realizes, the heat recovery method of energy and the power consumption production capacity situation of traditional sludge disposal options contrast as shown in Table 2.
Table one: the operational factor and the production capacity situation that reclaim the heat recovery method of energy in the rich aquatic material of 1kg
Note: the aquatic material of richness that " * " is described: moisture 80%, 12% organic matter (24000KJ/Kg), 8% inorganic mineral.Living beings in the rich aquatic material of " * * " clean production capacity :=1kg discharge the alluvial of the energy consumption of the rich aquatic material of energy consumption+processing 1kg of the rich aquatic material of calorific value-processing 1kg.
" * * * " dehydration surplus ratio is the percentage that after dehydration, water content accounts for former water content.
Table two: the heat recovery method of energy and the contrast of the power consumption production capacity situation of traditional sludge disposal options in rich aquatic material *
Note: the aquatic material of richness that " * " is described: moisture 80%, 12% organic matter (24000KJ/Kg), 8% inorganic mineral.
Living beings in the rich aquatic material of " * * " clean production capacity :=1kg discharge the alluvial of the energy consumption of the rich aquatic material of energy consumption+processing 1kg of the rich aquatic material of calorific value-processing 1kg.
" * * * " transport, landfill need power consumption, and by 100 yuan of handlings per ton, every degree electricity is with 1 yuan of calculating.
From table two, utilize this method, at one-level temperature-rise period, temperature and pressure is controlled at respectively to 180 DEG C, 1.0MPa, leaves standstill 15 minutes; Secondary temperature-rise period, temperature and pressure is controlled at respectively to 260 DEG C, 5.0MPa, and keep after 20 minutes, output high-temperature high-pressure steam also reclaims its heat energy, to high-pressure closed vessel after cooling and recovery waste heat, open living beings and solid inorganic impurity that high-pressure closed vessel obtains dehydration and drying, after this living beings of dehydration and drying are burned and reclaimed heat energy, the biomass ash after burning and the solid inorganic impurity that takes out in high-pressure closed vessel are processed to the materials such as nutrient and various noble metals such as recovery nitrogen phosphorus potassium wherein.From upper table 2, the whole bag of tricks all needs power consumption in processing procedure; Except landfill and compost, the whole bag of tricks can reclaim living beings contained energy in processing procedure, and the energy of recovery deducts and processes the difference consuming energy is exactly the clean production capacity of each processing method; In upper table 2, in existing several frequently seen processing, only have the net output energy of this law and super/subcritical oxidizing process the highest, but in super/subcritical oxidizing process, must use superhigh-temperature and-pressure closed container with high strength heater as reactor, and superhigh-temperature and-pressure structure of reactor complexity is manufactured very difficult, thereby its equipment investment cost is extremely expensive, and it needs to move under HTHP oxygen enrichment state, and consumes energy is large, and subsidiary potential safety hazard is higher.In addition, due to the complicated component of mud, conventionally there is corrosivity, in HTHP situation, more easily superhigh-temperature and-pressure reactor is caused damage, therefore bring expensive plant maintenance and replacement cost.The manufacturing cost of superhigh-temperature and-pressure reactor is high and operation difficulty is large, although it can produce a large amount of heat energy, compared with the energy that expends with it, manufacture, operating cost, its cost performance is low, therefore itself and impracticable.And the high temperature high pressure enclosed container with heater that this law is used, the temperature and pressure condition of its intensification does not all have superhigh-temperature and-pressure reactor so high, therefore, compared with superhigh-temperature and-pressure reactor, the manufacture of the high temperature high pressure enclosed container with heater that this law is used is just much easier, and cost reduces greatly, security also improves greatly.And its operating cost is low, and cost performance is high, very practical.
In order to simplify the operating procedure of intensification, at actual mechanical process, can will described in object, reclaim the step 2 described in the heat recovery method of energy in rich aquatic material) " one-level temperature-rise period " and step 3) " secondary temperature-rise period " be merged into disposable temperature-rise period, disposable rising is also controlled temperature in high-pressure closed vessel 350 DEG C of 100 DEG C≤T <, controlled pressure, within the scope of 0.1MPa≤P < 16.52MPa, carries out the separation of solid inorganic impurity and the dehydration of rich aquatic material simultaneously.
Embodiment bis-:
Two of object of the present invention is also to provide a kind of system that reclaims energy in rich aquatic material, as shown in 2, the system 1 of energy in the rich aquatic material of described recovery, it comprises that drying equipment 2, ash content disposal facility 3, heat exchanger 4 are as the heat collection retracting device of high-temperature high-pressure steam, clean normal-temperature water feeding mechanism 5, pollutant treatment device 6 and turbine generating system 7.
Described drying equipment 2 adds hot jacket 22 by high-pressure closed vessel 21, oil bath and heat conducting oil boiler 23 forms; Described heat conducting oil boiler 23 adds hot jacket 22 pipelines with oil bath and is connected; Described high-pressure closed vessel 21 is positioned over oil bath and adds in hot jacket 22; Pressure gauge 211, thermometer 212 and a steam output end 213 are installed on described high-pressure closed vessel 21, controlled gas outlet valve door 214 is installed on described steam output end 213; Aquatic the richness of moisture content < 99.9% material is put into high-pressure closed vessel, make rich aquatic material dehydration and drying become moisture content to be 0%～50% living beings, the living beings after mummification are sent into the interior burning of heat conducting boiler 23 that oil bath adds hot jacket again through the one-level high-temperature high-pressure steam that heats up that the process of leaving standstill makes that rich aquatic material separates with solid inorganic impurity, secondary heats up and export; Described ash content disposal facility 3 is connected with heat conducting oil boiler 23, disposes for the ash content burnouting in heat conducting oil boiler; The first heat transferring medium input 401 of described heat exchanger 4 is connected with steam output end 213 pipelines of high-pressure closed vessel, inputs in heat exchanger the high-temperature high-pressure steam with impurity of high-pressure closed vessel output as the first heat transferring medium; The second heat transferring medium in the present embodiment is normal temperature desalted water, the second heat transferring medium input 402 of described heat exchanger 4 is connected with normal temperature desalted water feeding mechanism 5 pipelines, passes in heat exchanger and carries out heat exchange with the high-temperature high-pressure steam as the first heat transferring medium through the second heat transferring medium input 402 of heat exchanger as the normal temperature desalted water of the second heat transferring medium; The second heat transferring medium output 403 of described heat exchanger 4 is connected with electricity generation system 7 pipelines, and clean HTHP the second heat transferring medium steam producing in heat exchanging process flows to steamer electricity generation system 7 through the second heat transferring medium output 403 of heat exchanger and generates electricity; The waste water and gas output 404 of described heat exchanger 4 is connected with pollutant treatment device 6, in heat exchanging process, the high-temperature high-pressure steam with impurity of exporting from the steam output end 213 of high-pressure closed vessel changes into waste water and gas after heat exchange, and the described waste water and gas changing into the high-temperature high-pressure steam of impurity is inputted in pollutant treatment device 6 and processed via waste water and gas output 404; Described turbine generating system 7 is connected with drying equipment 2 pipelines, with the heating process for high-pressure closed vessel by the used heat producing in electricity generation system power generation process, realizes fully recycling of energy.
In order to simplify the operating procedure of intensification, at actual mechanical process, can will described in object, reclaim the step 2 described in the heat recovery method of energy in rich aquatic material) " one-level temperature-rise period " and step 3) " secondary temperature-rise period " be merged into disposable temperature-rise period, disposable rising is also controlled temperature in high-pressure closed vessel 350 DEG C of 100 DEG C≤T <, and controlled pressure is within the scope of 0.1MPa≤P < 16.52MPa.
Except generating, the second clean heat transferring medium steam producing through heat exchanger in the present embodiment can also be transported to heating system heating or other industrial or agricultural application of municipal administration, industrial or agricultural and military installations.In the rich aquatic material of recovery that the present invention realizes, heat recovery method and the system of energy have excellent energy-conserving and environment-protective advantage, have great economic and social benefit.
Claims (50)
1. a heat recovery method that reclaims energy in rich aquatic material, comprises the following steps:
Step 1): aquatic the richness of moisture content < 99.9% material is put into a high-pressure closed vessel, high-pressure closed vessel is heated;
Step 2): one-level temperature-rise period, temperature in control high-pressure closed vessel is 250 DEG C of 100 DEG C≤T <, controlled pressure is within the scope of 0.1MPa≤P < 3.97MPa, make rich aquatic material liquefaction, and there is not chemical breakdown in most biomass components, in mixed aqueous solution state, keep in high-pressure closed vessel constant and standing a period of time of temperature and pressure, due to proportion difference, the various living beings various solid inorganic impurity contained with it in rich aquatic material are separated, heavier solid inorganic contamination precipitation is to the bottom of the interior aqueous solution of high-pressure closed vessel, and lighter living beings float to the top of the aqueous solution in high-pressure closed vessel,
Step 3): secondary temperature-rise period, by step 2), after rich aquatic material is separated with solid inorganic impurity, raise and control temperature in high-pressure closed vessel 350 DEG C of 100 DEG C≤T <, controlled pressure is within the scope of 0.1MPa≤P < 16.52MPa, make most of biomass components that chemical breakdown not occur, water in high-pressure closed vessel seethes with excitement simultaneously, the high-temperature high-pressure steam of generation with impurity, derive high-temperature high-pressure steam, energy is recycled, and made rich aquatic material dehydration;
Step 4): through step 3), stop heating, cooling high-pressure closed vessel recovery waste heat, then open the lid of high-pressure closed vessel, take out living beings and solid inorganic impurity after the inner dehydration and drying having separated, living beings after dehydration and drying reclaim for energy, and solid inorganic impurity reclaims for mineral matter and heavy metal.
2. the heat recovery method of energy in the rich aquatic material of recovery according to claim 1, it is characterized in that: also comprise step 5): will be through step 3) in the high-temperature high-pressure steam with impurity of deriving as the first heat transferring medium input heat exchanger, the second clean heat transferring medium is passed into heat exchanger simultaneously, by step 3) the whole heat exchanges of heat of the high-temperature high-pressure steam with impurity that produces are to clean the second heat transferring medium output, the heat of the second heat transferring medium is utilized simultaneously, realize the dewater recycling of required heat energy of the aquatic material of richness.
3. the heat recovery method of energy in the rich aquatic material of recovery according to claim 2, is characterized in that, described the second heat transferring medium is clean water, gas, liquid metal or other material that can carry out heat exchange.
4. the heat recovery method of energy in the rich aquatic material of recovery according to claim 1, it is characterized in that: described step 1) mode of heating of mesohigh closed container is conduction oil dielectric heating, electrical heating, high frequency, microwave, coal, oil, natural gas, solar energy, remaining waste heat mode, or other mode of heating.
5. the heat recovery method of energy in the rich aquatic material of recovery according to claim 2, is characterized in that: also comprise step 6): will be through step 5) heat of the second heat transferring medium of output is for electricity generation system generating.
6. the heat recovery method of energy in the rich aquatic material of recovery according to claim 2, is characterized in that: also comprise step 7): will be through step 5) heat of the second heat transferring medium of output is for heating system heating or other industrial or agricultural application of municipal administration, industrial or agricultural and military installations.
7. the heat recovery method of energy in the rich aquatic material of recovery according to claim 1, it is characterized in that: also comprise step 8): the energy way of recycling of the living beings after the dehydration and drying taking out in step 4 is burning, and the heat release of combustion process is for step 1)～3) heating process.
8. the heat recovery method of energy in the rich aquatic material of recovery according to claim 7, it is characterized in that: also comprise step 9): the ash content that the living beings by burning after dehydration and drying produce is by recycling, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
9. the heat recovery method of energy in the rich aquatic material of recovery according to claim 1, it is characterized in that: also comprise step 10): by step 4) the solid inorganic impurity that produces is by recycling, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
10. the heat recovery method of energy in the rich aquatic material of recovery according to claim 2, is characterized in that: also comprise step 11): to step 5) in the waste water and the waste gas that produce after high-temperature high-pressure steam with impurity and the second heat transferring medium heat exchanging process recycle and apply.
In the rich aquatic material of 11. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " one-level temperature-rise period " is controlled at 110 DEG C～200 DEG C, and pressure is within the scope of 0.14MPa～1.55MPa.
In the rich aquatic material of 12. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " one-level temperature-rise period " is controlled at 120 DEG C～180 DEG C, and pressure is within the scope of 0.20MPa～1.00MPa.
In the rich aquatic material of 13. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " one-level temperature-rise period " is controlled at 130 DEG C, and pressure is 0.27MPa.
In the rich aquatic material of 14. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " one-level temperature-rise period " is controlled at 150 DEG C, and pressure is 0.48MPa.
In the rich aquatic material of 15. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " one-level temperature-rise period " is controlled at 170 DEG C, and pressure is 0.79MPa.
In the rich aquatic material of 16. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 3) temperature of described " secondary temperature-rise period " is controlled at 120 DEG C～300 DEG C, and pressure is within the scope of 0.20MPa～8.58MPa.
In the rich aquatic material of 17. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 3) temperature of described " secondary temperature-rise period " is controlled at 150 DEG C～290 DEG C, and pressure is within the scope of 0.48MPa～7.44MPa.
In the rich aquatic material of 18. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " secondary temperature-rise period " is controlled at 220 DEG C, and pressure is 2.32MPa.
In the rich aquatic material of 19. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " secondary temperature-rise period " is controlled at 250 DEG C, and pressure is 3.97MPa.
In the rich aquatic material of 20. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " secondary temperature-rise period " is controlled at 280 DEG C, and pressure is 6.41MPa.
In the rich aquatic material of 21. recovery according to claim 1, the heat recovery method of energy, is characterized in that: step 2) temperature of described " secondary temperature-rise period " is controlled at 320 DEG C, and pressure is 11.28MPa..
In the rich aquatic material of 22. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 4) in the aquatic material dehydration and drying of richness after moisture content reach 0%～50%.
In the rich aquatic material of 23. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 4) in take out the aquatic material dehydration and drying of richness after moisture content reach 3%～20%.
In the rich aquatic material of 24. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 4) in take out the aquatic material dehydration and drying of richness after moisture content reach 10%～15%.
In the rich aquatic material of 25. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 4) in take out the aquatic material dehydration and drying of richness after moisture content reach 30%.
In the rich aquatic material of 26. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 4) in take out the aquatic material dehydration and drying of richness after moisture content reach 40%.
In the rich aquatic material of 27. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 4) in take out the aquatic material dehydration and drying of richness after moisture content reach 7%.
In the rich aquatic material of 28. recovery according to claim 5, the heat recovery method of energy, is characterized in that: also comprise step 12): by the used heat producing after the generating of described electricity generation system for step 1) the heating of high-pressure closed vessel.
In the rich aquatic material of 29. recovery according to claim 5, the heat recovery method of energy, is characterized in that: also comprise step 13): by the used heat producing after the generating of described electricity generation system for step 1) the preheating of the aquatic material of richness.
The heat recovery method of energy in the rich aquatic material of 30. recovery according to claim 5, it is characterized in that: when the mode of heating of high-pressure closed vessel is conduction oil dielectric heating, also comprise step 14): the heating by the used heat producing after described electricity generation system generating for conduction oil medium.
In the rich aquatic material of 31. recovery according to claim 5, the heat recovery method of energy, is characterized in that: also comprise step 15): by the used heat producing after the generating of described electricity generation system for step 5) the preheating of the second heat transferring medium.
32. heat recovery methods according to energy in the rich aquatic material of recovery claimed in claim 1, it is characterized in that: described step 1) mode of heating of mesohigh closed container is conduction oil medium, also comprises step 16): by step 4) in the waste heat that reclaims of cooling high-pressure closed vessel for the heating of conduction oil medium.
In the rich aquatic material of 33. recovery according to claim 1, the heat recovery method of energy, is characterized in that: also comprise step 17): by step 4) waste heat that reclaims of cooling high-pressure closed vessel is for the rich aquatic material of pre-mummification.
In the rich aquatic material of 34. recovery according to claim 2, the heat recovery method of energy, is characterized in that: also comprise step 18): before described the second heat transferring medium input heat exchanger, preheat.
The heat recovery method of energy in the rich aquatic material of 35. recovery according to claim 34, it is characterized in that: also comprise step 19): by the second heat transferring medium for step 4) cooling procedure of mesohigh closed container to be to reclaim its heat energy, and realizes preheating the second heat transferring medium.
The heat recovery method of energy in the rich aquatic material of 36. recovery according to claim 1, it is characterized in that: the aquatic material of described richness is aqueous solid and the liquid of various high COD content, as comprise: municipal wastewater and other industrial or agricultural are military produces the sewage producing, and one or more mixture of the rich aquatic material such as the excreta that produces of the animal feeding such as the concentrate of the high COD content producing after various purified treatment, mud, livestock and poultry, changing food waste, garden garbage, farmland rubbish.
In the rich aquatic material of 37. recovery according to claim 1, the heat recovery method of energy, is characterized in that: described step 1) in time of repose be 1 minute～3 hours.
In the rich aquatic material of 38. recovery according to claim 3, the heat recovery method of energy, is characterized in that: described clean water is desalted water, deionized water or distilled water.
The heat recovery method of energy in the rich aquatic material of 39. recovery according to claim 1, it is characterized in that: by described step 2) " one-level temperature-rise period " and step 3) " secondary temperature-rise period " be merged into disposable temperature-rise period, disposable rising is also controlled temperature in high-pressure closed vessel 350 DEG C of 100 DEG C≤T <, and controlled pressure is within the scope of 0.1MPa≤P < 16.52MPa.
40. 1 kinds of application rights require to reclaim described in 1 the system of the heat recovery method of energy in rich aquatic material, it is characterized in that: the heat that at least comprises drying equipment and high-temperature high-pressure steam is collected retracting device, and described drying equipment comprises high-pressure closed vessel and the heater for high-pressure closed vessel is heated.
41. according to the system of energy in the rich aquatic material of the recovery described in claim 40, it is characterized in that: also comprise ash content disposal plant, carry out the step 1 of recovery method as claimed in claim 1)-step 4) operation after isolate solid inorganic impurity and send into solid inorganic impurity recovery and processing system and process, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
42. according to the system of energy in the rich aquatic material of the recovery described in claim 40, it is characterized in that: also comprise biomass combustion boiler and solid inorganic impurity recovery and processing system, high-pressure closed vessel carries out the step 1 of recovery method as claimed in claim 1)-step 4) operation after living beings after isolated dehydration and drying send into biomass combustion boiler burning, the ash that burning produces is distributed into the processing of solid inorganic impurity recovery and processing system, to reclaim the materials such as nutrient and various noble metals such as nitrogen phosphorus potassium wherein.
43. according to the system of energy in the rich aquatic material of the recovery described in claim 40, it is characterized in that: described heater is made up of the boiler of the hot oil heater that high-pressure closed vessel is heated and heating conduction oil; Described heat conducting oil boiler is connected with hot oil heater pipeline; Described high-pressure closed vessel and hot oil heater one.
44. according to the system of energy in the rich aquatic material of the recovery described in claim 40, it is characterized in that: also comprise that high-pressure closed vessel heat reclaim unit is for reclaiming the waste heat of high-pressure closed vessel.
45. according to the system of energy in the rich aquatic material of the recovery described in claim 44, it is characterized in that: the waste heat of the high-pressure closed vessel of recovery is for the heating of the rich aquatic material of mummification, the second heat transferring medium.
46. according to the system of energy in the rich aquatic material of the recovery described in claim 43, it is characterized in that: also comprise high-pressure closed vessel heat reclaim unit, the waste heat of the high-pressure closed vessel of recovery is for the heating to described conduction oil.
47. according to a kind of system that reclaims energy in rich aquatic material described in claim 40, it is characterized in that: it is heat exchanger that the heat of described high-temperature high-pressure steam is collected retracting device, high-temperature high-pressure steam, as the first heat transferring medium of heat exchanger, also comprises the second heat transferring medium feeding mechanism and waste water and gas collection processing system implementing; The steam output end of described high-pressure closed vessel is connected with the first heat transferring medium input pipeline of heat exchanger, and the second heat transferring medium input of described heat exchanger is connected with the second heat transferring medium feeding mechanism pipeline; The waste water and gas output of described heat exchanger is connected with pollutant treatment device.
48. according to the system of energy in the rich aquatic material of the recovery described in claim 47, it is characterized in that: in the time that the second heat transferring medium of heat exchanger is clean water, the high-temperature high-pressure steam (the second heat transferring medium) of output is connected with steamer electricity generation system, and the heat of the second heat transferring medium is used for to generating.
49. according to the system of energy in the rich aquatic material of the recovery described in claim 47, it is characterized in that: in the time that the second heat transferring medium of heat exchanger is clean water, the high-temp liquid water (the second heat transferring medium) of its output is connected with the heating system of municipal administration, industrial or agricultural and military installations, and the heat of the second heat transferring medium is used for to heating.
50. according to the system of energy in the rich aquatic material of the recovery described in claim 48, it is characterized in that: also comprise high-pressure closed vessel preheating device and the second heat transferring medium preheating equipment, the used heat output of described electricity generation system is connected with high-pressure closed vessel preheating device and the second heat transferring medium preheating equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571083.0A CN103846055B (en) | 2012-12-03 | 2012-12-06 | A kind of heat recovery method reclaiming energy in rich water biomass and system |
| PCT/CN2013/088433 WO2014086278A1 (en) | 2012-12-03 | 2013-12-03 | Heat recycling method and system for energy in eutrophicated water biomass |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508217.4 | 2012-12-03 | ||
| CN201210508217 | 2012-12-03 | ||
| CN2012105082174 | 2012-12-03 | ||
| CN201210571083.0A CN103846055B (en) | 2012-12-03 | 2012-12-06 | A kind of heat recovery method reclaiming energy in rich water biomass and system |
Publications (2)
| Publication Number | Publication Date |
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| CN103846055A true CN103846055A (en) | 2014-06-11 |
| CN103846055B CN103846055B (en) | 2016-09-28 |
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| CN201210571083.0A Expired - Fee Related CN103846055B (en) | 2012-12-03 | 2012-12-06 | A kind of heat recovery method reclaiming energy in rich water biomass and system |
Country Status (2)
| Country | Link |
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| CN (1) | CN103846055B (en) |
| WO (1) | WO2014086278A1 (en) |
Cited By (3)
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| CN105712603A (en) * | 2016-01-22 | 2016-06-29 | 惠州市中环科技环保工程有限公司 | Sludge drying method to which radio frequency electromagnetic energy is applied |
| CN106310682A (en) * | 2015-06-23 | 2017-01-11 | 施丽菊 | High-temperature organic liquid energy-saving purification system |
| CN106630530A (en) * | 2015-10-30 | 2017-05-10 | 新大陆科技集团有限公司 | Reaction kettle and water-rich biomass drying and energy recovery system applying reaction kettle |
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| DE3423620A1 (en) * | 1984-06-27 | 1986-01-02 | Uhde Gmbh, 4600 Dortmund | METHOD FOR THE THERMAL TREATMENT OF CARBONATED SUBSTANCES, ESPECIALLY SLUDGE |
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| CN1498700A (en) * | 2002-11-07 | 2004-05-26 | 武绍之 | Power generation system by using gasified household garbage through autoclaving |
| JP2005139443A (en) * | 2003-10-17 | 2005-06-02 | Mitsubishi Heavy Ind Ltd | Gasifying system of high water content organic material and latent heat recovery boiler |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014086278A1 (en) | 2014-06-12 |
| CN103846055B (en) | 2016-09-28 |
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