CN105217915A - A kind of sludged waste material comprehensive utilization of energy technique and process system thereof - Google Patents
A kind of sludged waste material comprehensive utilization of energy technique and process system thereof Download PDFInfo
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- CN105217915A CN105217915A CN201510711576.3A CN201510711576A CN105217915A CN 105217915 A CN105217915 A CN 105217915A CN 201510711576 A CN201510711576 A CN 201510711576A CN 105217915 A CN105217915 A CN 105217915A
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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Abstract
The present invention relates to a kind of sludged waste material comprehensive utilization of energy technique, comprise mixing step, low temperature pyrogenation step, pyrolysis step, heat exchange steps or splitting gas recycling step.The invention still further relates to the process system that above-mentioned technique realizes, comprise mixing tank, pyrolysis oven, pyrolyzer and heat-exchange system, pyrolysis oven is provided with heat smoke circulation tube, described heat smoke circulation tube one end connects pyrolysis oven air outlet, the heat smoke circulation tube the other end connects pyrolysis oven inlet mouth, and the section of tubing of heat smoke circulation tube is arranged in the heat exchange system of heat-exchange system.Because the technology of the present invention is reasonable in design, not only ensure the stability that sludge carbonization electrification technique as well as runs, and can mud steady in a long-term, there is innoxious, eco-friendly feature.Energy utilization rate of the present invention is high, and the maximized sensible heat that make use of Pintsch process gas, decreases the consumption to extra power, mud contained energy can also be converted into electric energy.
Description
Technical field
The invention belongs to trade waste processing technology field, be specifically related to a kind of sludged waste material comprehensive utilization of energy technique and process system thereof.
Background technology
Sludge treatment is the process of mud being carried out to minimizing, stabilization and harmless treatment.Traditional sludge treatment mode mainly contains landfill, burning.The method of disposal of landfill is simple, easy, cost is low, and mud does not need high dehydration, strong adaptability.But in landfill process, easily there is the formation of percolate and gas.Percolate is a kind of liquid be heavily polluted, if site selection of landfill or run improper can polluted underground water environment.Gas is methane mainly, can set off an explosion and burn if do not take appropriate measures.Namely there is the problems such as floor space is large, pollution hidden trouble, generation greenhouse gases in landfill.
The method of disposal of burning need consume a large amount of fuel and easily cause dioxin to pollute.Directly burning after wet sludge anhydration applies comparatively general again.To take burning as the method for sludge treatment of core be one of method for sludge treatment the most thoroughly, it can make the whole carbonization of organism, kills pathogenic agent, can reduce sludge volume to greatest extent; But its shortcoming is treatment facility, and investment is large, and processing costs is high, and cost of equipment maintenance is high, and generation dioxin is strong carcinogen.
Along with the reinforcement of environmental protection dynamics and people are to the further understanding of existing specific resistance to filtration technical limitation, although there are some new technologies in field of sludge treatment, but the energy contained among mud is not still utilized completely and is developed, and does not also accomplish real harmless treatment.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of this invention is to provide the high sludged waste material comprehensive utilization of energy technique of a kind of low temperature pyrogenation, environmental protection, capacity usage ratio and process system thereof, to solve the problems such as existing sludge disposal technology energy consumption is high, environmental pollution is serious.The technical solution used in the present invention comprises:
A kind of sludged waste material comprehensive utilization of energy technique, comprises the steps:
Mixing step: the dewatered sludge of water content≤30 ﹪ and biomass are mixed to get biomass sludge mixture with the ratio uniform of 1.6:1 ~ 1:1, described biomass comprise one or more combinations of stalk, wood chip or branch;
Low temperature pyrogenation step: described biomass sludge mixture is carried out pyrolysis under air exclusion, temperature 450 DEG C ~ 600 DEG C conditions, pyrolysis produces heat smoke and pyrolytic carbon;
Pyrolysis step: described heat smoke is converted into splitting gas under the hot conditions of cracking temperature >=1000 DEG C;
Heat exchange steps: the energy of being replaced described splitting gas by heat-exchanger rig, for providing described low temperature pyrogenation step or/and heat energy needed for heat smoke cleavage step.
Sludged waste material comprehensive utilization of energy technique of the present invention further, splitting gas recycling step is provided with, the pure splitting gas that described splitting gas recycling step will obtain after the splitting gas purification after heat exchange, filtration, dehumidifying for generating electricity after described heat exchange steps.
Sludged waste material comprehensive utilization of energy technique of the present invention further, sludge dewatering step was provided with before described mixing step, described sludge dewatering step is divided into mechanical dehydration and thermal dehydration two step, described heat exchange steps gained energy is for providing the heat energy of described thermal dehydration step, wherein, described mechanical dewatering stage obtains the first dewatered sludge of water content≤60 ﹪ after the primary sludge of water content >=90 ﹪ is carried out mechanical dehydration by the mode extruding or dry; Described thermal dehydration step is that described just dewatered sludge is dried the dewatered sludge obtaining water content≤30 ﹪.
Further, in described pyrolysis step, the high-temperature residence time of heat smoke is at least 2 seconds to sludged waste material comprehensive utilization of energy technique of the present invention.
Further, described pyrolysis step carries out sludged waste material comprehensive utilization of energy technique of the present invention under anoxic conditions, or carries out under anoxic and catalysts conditions, and described catalyzer is charcoal base class catalyzer, comprises coke or gac.
The sludged waste material comprehensive utilization of energy process system of another technical scheme of the present invention, comprise the mixing tank, pyrolysis oven, pyrolyzer and the heat-exchange system that connect successively, described pyrolysis oven is provided with heat smoke circulation tube one end described in heat smoke circulation tube and connects pyrolysis oven air outlet, the described heat smoke circulation tube the other end connects pyrolysis oven inlet mouth, and the section of tubing of heat smoke circulation tube is arranged in the heat exchange system of heat-exchange system.
Further, the outlet side of described heat-exchange system is connected to oil engine by pipeline through gas treating system to sludged waste material comprehensive utilization of energy process system of the present invention.
Sludged waste material comprehensive utilization of energy process system of the present invention further, be connected with for the sludge dryer by the moisture content reduction in mud at the opening for feed of described mixing tank by pipeline, the opening for feed of described sludge dryer is connected with mechanical dehydration device by pipeline, described sludge dryer is provided with air scavenge conduit, the other end of described air scavenge conduit connects chimney, gas in sludge dryer is discharged through chimney, and described sludge dryer is connected to the tail gas relief outlet of oil engine by exhaust emission tube road.
Sludged waste material comprehensive utilization of energy process system of the present invention further, one is arranged with the drawing mechanism of storage space between described mixing tank and pyrolysis oven, the opening for feed of the storage space of described drawing mechanism is connected with the discharge port of mixing tank by pipeline, and the discharge port of described drawing mechanism is connected with the opening for feed of pyrolysis oven by pipeline.
Sludged waste material comprehensive utilization of energy process system of the present invention further, described heat-exchange system comprises first step interchanger through pipeline communication and second stage interchanger, the inlet mouth of described first step interchanger connects the air outlet of described pyrolyzer, the section of tubing of described heat smoke circulation tube is arranged in first step interchanger, and the production well of described second stage interchanger connects the air inlet port of oil engine.
By such scheme, the present invention at least has the following advantages: 1. the technology of the present invention is reasonable in design, not only ensures the stability that sludge carbonization electrification technique as well as runs, and can be steady in a long-term continuity process is carried out to mud; 2. limited the ratio of the sludge moisture content before pyrolysis and mud and biomass by test, make that mixture pyrolysis is complete, pyrolysis is effective; 3. pyrolysis step of the present invention is carried out under anoxic, hot conditions, and the objectionable impurities generations such as Shi dioxin, tar minimize, and through the hot conditions of certain hour, above-mentioned objectionable impurities is cleaved, and the heat achieving gas is clean; 4. after present invention process sludge treatment, volume greatly reduces, the amount of exhaling pernicious gases is few, pyrolytic carbon after process by objectionable impurities solidifications such as heavy metals wherein, water insoluble, there is innoxious, eco-friendly feature; 5. energy utilization rate of the present invention is high, and the maximized sensible heat that make use of Pintsch process gas of two-stage heat exchange mode, decreases the demand of the system external portion energy, mud contained energy can also be converted into electric energy.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of sludged waste material comprehensive utilization of energy of the present invention technique;
Fig. 2 is the structural representation of a kind of sludged waste material comprehensive utilization of energy of the present invention process system.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
See Fig. 1, the schematic flow sheet of sludged waste material comprehensive utilization of energy process example of the present invention, comprise mechanical dewatering stage, thermal dehydration step, mixing step, low temperature pyrogenation step, pyrolysis step, heat exchange steps, splitting gas recycling step, each step is specific as follows:
Mechanical dewatering stage: the first dewatered sludge obtaining water content≤60 ﹪ after the primary sludge of water content >=90 ﹪ is carried out mechanical dehydration by the mode extruding or dry, primary sludge refers to the first precipitating sludge without sludge treatment.
Thermal dehydration step: be the dewatered sludge first dewatered sludge heating, drying obtained after the process of previous step mechanical dewatering stage being obtained water content≤30 ﹪.The moisture content of primary sludge can be down to 30 below ﹪ by the mechanical dewatering stage designed by the present invention and thermal dehydration step very easily, and does not expend too much energy consumption, high-efficiency dehydration.
Mixing step: by the primary sludge after processed, be about to the primary sludge after above-mentioned mechanical dewatering stage and thermal dehydration step process, the dewatered sludge of water content≤30 ﹪ obtained, this dewatered sludge and biomass are with certain proportion, as obtained biomass sludge mixture at proportional range 1.6:1 ~ 1:1 Homogeneous phase mixing, biomass described in preferred proportion 1.6:1 comprise one or more combinations of stalk, wood chip or branch.
Low temperature pyrogenation step: described biomass sludge mixture is carried out pyrolysis under air exclusion, temperature 450 DEG C ~ 600 DEG C conditions, pyrolysis produces heat smoke and pyrolytic carbon.
Pyrolysis step: described heat smoke is converted into splitting gas under the hot conditions of cracking temperature >=1000 DEG C, and the high-temperature residence time of heat smoke in pyrolysis step is at least 2 seconds, and effectively by objectionable impurities cracking, the heat achieving gas is clean.Pyrolysis step preferably carries out, or carry out under anoxic and catalysts conditions under anoxic conditions, and described catalyzer is charcoal base class catalyzer, comprises coke or gac.
Heat exchange steps: the energy of being replaced described splitting gas by heat-exchanger rig, for providing described low temperature pyrogenation step or/and heat energy needed for heat smoke cleavage step.Certainly, heat exchange steps gained energy also can be used for the heat energy providing aforementioned thermal dehydration step.
Splitting gas recycling step: be provided with splitting gas recycling step after heat exchange steps, the pure splitting gas that this splitting gas recycling step will obtain after the splitting gas purification after heat exchange, filtration, dehumidifying for generating electricity.
As shown in Figure 2, it is the structural representation of the specific embodiment of sludged waste material comprehensive utilization of energy process system of the present invention, comprise the mixing tank 1, pyrolysis oven 2, pyrolyzer 3 and the heat-exchange system 4 that connect successively, this pyrolysis oven 2 is provided with heat smoke circulation tube 13, heat smoke circulation tube 13 one end connects pyrolysis oven 2 air outlet, the other end of heat smoke circulation tube 13 connects pyrolysis oven 2 inlet mouth, and the section of tubing of heat smoke circulation tube 13 is arranged in the heat exchange system of heat-exchange system 4.Mixing tank 1, pyrolysis oven 2, pyrolyzer 3 and heat-exchange system 4 four are the important device realizing present invention process system, mixing tank 1 realizes the Homogeneous phase mixing of the dewatered sludge after processed and biomass, and the low temperature pyrogenation that pyrolysis oven 2 realizes the biomass sludge mixture of dewatered sludge and biomass produces heat smoke and pyrolytic carbon.Pyrolyzer 3 realizes the Pintsch process of heat smoke, makes the objectionable impurities in splitting gas cleaved, achieves the thermal purification of gas.The energy replacement of splitting gas uses to the device in pyrolysis oven 2 or other process systems by heat-exchange system 4, and the maximized sensible heat that make use of Pintsch process gas, decreases the consumption of the system external portion energy, mud contained energy can also be converted into electric energy.Preferably, be connected to oil engine 11 in the outlet side of heat-exchange system 4 by pipeline through gas treating system 10, oil engine 11 utilizes pure splitting gas to generate electricity.
Particularly, by aforementioned, mechanical dewatering stage and thermal dehydration step can be set before mixing step described sludged waste material comprehensive utilization of energy technique is known, namely the opening for feed of mixing tank 1 is connected with for the sludge dryer 5 by the moisture content reduction in mud by pipeline, and the opening for feed of sludge dryer 5 is connected with mechanical dehydration device 6 by pipeline.Wherein, sludge dryer 5 is provided with air scavenge conduit 7, the other end of air scavenge conduit 7 connects chimney 8, and the gas in sludge dryer 5 is discharged through chimney 8, is mainly discharged by the pollution-free steam produced in sludge dryer 5.Sludge dryer 5 is connected to the tail gas relief outlet of oil engine 11 by exhaust emission tube road 12, and the Main Function in exhaust emission tube road 12 delivers in sludge dryer 5 by the tail gas that oil engine 11 is discharged, and the heat energy of tail gas is used for mud and dries.
Equally as shown in Figure 2, one is arranged with the drawing mechanism 9 of storage space 91 between mixing tank 1 and pyrolysis oven 2, particularly, the opening for feed of the storage space 91 of drawing mechanism 9 is connected by the discharge port of pipeline with mixing tank 1, and the discharge port of drawing mechanism 9 is connected by the opening for feed of pipeline with pyrolysis oven 2.By the setting of drawing mechanism 9, after being ground into small-particle artifact matter and mud Homogeneous phase mixing, mixture sends into pyrolysis in pyrolysis oven 2 again, be conducive to, by the fully pyrolysis rapidly of biomass sludge mixture, not only shortening the process time, and being conducive to the pyrolysis efficiency improving pyrolysis oven 2.Preferably, heat-exchange system 4 comprises first step interchanger 41 through pipeline communication and second stage interchanger 42, the inlet mouth of first step interchanger 41 connects the air outlet of pyrolyzer 3, the section of tubing of heat smoke circulation tube 13 is arranged in first step interchanger 41, and the production well of second stage interchanger 42 connects the air inlet port of oil engine 11.
When the present invention works, first by primary sludge through mechanical dehydration device 6, pressure filter specifically can be selected to carry out mechanical dehydration, make moisture≤60 ﹪ in the primary sludge of originally water content >=90 ﹪.First for water content≤60 ﹪ dewatered sludge is delivered in sludge dryer 5 and dries, obtain the dewatered sludge of water content≤30 ﹪.Dewatered sludge enters the biomass Homogeneous phase mixing in mixing tank 1 and after pulverizing by pipeline, biomass after pulverizing directly can add and dewatered sludge Homogeneous phase mixing interior with mixing tank 1, biomass also can add dewatered sludge and flow through in the pipeline of mixing tank 1, together flow in mixing tank 1 from pipeline with dewatered sludge.Biomass sludge mixture in mixing tank 1 after Homogeneous phase mixing flows in the storage space 91 in drawing mechanism 9 through pipeline, biomass sludge mixture is slowly sent into pyrolysis oven 2 by the auger unit (Fig. 2 is not shown) through drawing mechanism 9, low temperature pyrogenation is carried out at 450 DEG C to 600 DEG C temperature, biomass sludge mixture is two kinds of materials by pyrolysis in pyrolysis oven 2, heat smoke and pyrolytic carbon respectively, pyrolytic carbon is from the airtight discharge system discharging of pyrolysis oven 2, and after pyrolytic carbon cooling when conveying processes, temperature is also down to 50 DEG C by 500 DEG C.Dewatered sludge is after pyrolysis oven 2 processes, and volume greatly reduces and the wherein objectionable impurities such as contained heavy metal, is cured in pyrolytic carbon, water insoluble, has accomplished innoxious, the minimizing process of mud.The heat smoke produced, after the dust in gas removed by cleaning apparatus, can enter in follow-up pyrolyzer 3.Add catalyzer in pyrolyzer 3, catalyzer comprises coke or gac, and carries out pyrolysis under temperature being maintained the condition of more than 1000 DEG C, and tar contained by heat smoke, at catalyst surface generation deep pyrolytic, generates micromolecular hydrocarbon polymer, and and H
2o and CO
2there is reforming reaction, generate splitting gas.
Above-mentioned pyrolysis oven 2 pyrolysis desired gas envrionment temperature is about 600 DEG C, is that the heat produced by the biological particles stove biomass burning of pyrolysis oven 2 is provided in the initial stage.After whole process system normally runs, the biological particles roasting kiln of pyrolysis oven 2 can be closed, the gas that only operation system follow up device produces provides heat energy, as brought in pyrolysis oven 2 by the heat of heat smoke circulation tube 13 by the splitting gas sensible heat of the generation of pyrolyzer 3, thus save fuel.It is adopt non-contacting mode heating biological matter sludge mixture that the gas of heat smoke circulation tube 13 enters pyrolysis oven 2.Heat smoke temperature after heating reduces, the pipeline that part heat smoke can be connected chimney 8 from pyrolysis oven 2 directly discharges to chimney 8, also all or part of heat smoke can be sent in high temperature heat exchange first step interchanger 41 and splitting gas heat exchange, the heat smoke temperature after heat exchange raises and is reused by pyrolysis oven 2 again.
From pyrolyzer 3 splitting gas temperature about 900 DEG C out, first enter in first step interchanger 41 i.e. high-temperature flue gas interchanger, the sensible heat of the splitting gas of high temperature will be utilized here, while reduction splitting gas own temperature, the heat smoke of heating needed for pyrolysis oven 2 is also used for the sludge carbonization in pyrolysis oven 2, decreases the consumption for the energy sources amount needed for system.By the splitting gas of first step interchanger 41, temperature is reduced to 500 DEG C further, enter second stage interchanger 42 i.e. cryogenic heat exchanger subsequently, second stage interchanger 42 reduce further splitting gas own temperature, decrease the consumption for the energy sources amount, also for next step purifying treatment of splitting gas is got ready.When splitting gas temperature after second stage interchanger 42 heat exchange is down to and is about 200 DEG C, the scrubber tower 14 entering gas treating system 10 purifies, remove the grit in splitting gas, become clean flammable pure splitting gas, now the temperature of pure splitting gas is down to 35 DEG C.Pure gas enters moisture trap 15 and carries out gas-water separation subsequently, removes the water droplet of pure splitting gas, is admitted to follow-up oil engine 11 and generates electricity after reducing the humidity of pure splitting gas.Meanwhile, the tail gas of about 500 DEG C that oil engine 11 produces is used to the thermal source of sludge dryer 5, dries the first dewatered sludge of moisture content 60% to water content less than 30%, reduces pyrolysis section to the demand of thermal source.
The above is only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (10)
1. a sludged waste material comprehensive utilization of energy technique, is characterized in that, comprises the steps:
Mixing step: the dewatered sludge of water content≤30 ﹪ and biomass are mixed to get biomass sludge mixture with the ratio uniform of 1.6:1 ~ 1:1, described biomass comprise one or more combinations of stalk, wood chip or branch;
Low temperature pyrogenation step: described biomass sludge mixture is carried out pyrolysis under air exclusion, temperature 450 DEG C ~ 600 DEG C conditions, pyrolysis produces heat smoke and pyrolytic carbon;
Pyrolysis step: described heat smoke is converted into splitting gas under the hot conditions of cracking temperature >=1000 DEG C;
Heat exchange steps: the energy of being replaced described splitting gas by heat-exchanger rig, for providing described low temperature pyrogenation step or/and heat energy needed for heat smoke cleavage step.
2. a kind of sludged waste material comprehensive utilization of energy technique according to claim 1, it is characterized in that: after described heat exchange steps, be provided with splitting gas recycling step, the pure splitting gas that described splitting gas recycling step will obtain after the splitting gas purification after heat exchange, filtration, dehumidifying for generating electricity.
3. a kind of sludged waste material comprehensive utilization of energy technique according to claim 1, it is characterized in that: before described mixing step, be provided with sludge dewatering step, described sludge dewatering step is divided into mechanical dehydration and thermal dehydration two step, described heat exchange steps gained energy is for providing the heat energy of described thermal dehydration step, wherein, described mechanical dewatering stage obtains the first dewatered sludge of water content≤60 ﹪ after the primary sludge of water content >=90 ﹪ is carried out mechanical dehydration by the mode extruding or dry; Described thermal dehydration step is that described just dewatered sludge is dried the dewatered sludge obtaining water content≤30 ﹪.
4. a kind of sludged waste material comprehensive utilization of energy technique according to claim 1, is characterized in that: in described pyrolysis step, the high-temperature residence time of heat smoke is at least 2 seconds.
5. a kind of sludged waste material comprehensive utilization of energy technique according to claim 1, it is characterized in that: described pyrolysis step carries out under anoxic conditions, or carry out under anoxic and catalysts conditions, described catalyzer is charcoal base class catalyzer, comprises coke or gac.
6. a sludged waste material comprehensive utilization of energy process system, it is characterized in that: comprise the mixing tank (1), pyrolysis oven (2), pyrolyzer (3) and the heat-exchange system (4) that connect successively, described pyrolysis oven (2) is provided with heat smoke circulation tube (13), described heat smoke circulation tube (13) one end connects pyrolysis oven (2) air outlet, described heat smoke circulation tube (13) the other end connects pyrolysis oven (2) inlet mouth, and the section of tubing of heat smoke circulation tube (13) is arranged in the heat exchange system of heat-exchange system (4).
7. sludged waste material comprehensive utilization of energy process system according to claim 6, is characterized in that: the outlet side of described heat-exchange system (4) is connected to oil engine (11) by pipeline through gas treating system (10).
8. sludged waste material comprehensive utilization of energy process system according to claim 7, it is characterized in that: be connected with for the sludge dryer (5) by the moisture content reduction in mud at the opening for feed of described mixing tank (1) by pipeline, the opening for feed of described sludge dryer (5) is connected with mechanical dehydration device (6) by pipeline, described sludge dryer (5) is provided with air scavenge conduit (7), the other end of described air scavenge conduit (7) connects chimney (8), gas in sludge dryer (5) is discharged through chimney (8), described sludge dryer (5) is connected to the tail gas relief outlet of oil engine (11) by exhaust emission tube road (12).
9. sludged waste material comprehensive utilization of energy process system according to claim 6, it is characterized in that: between described mixing tank (1) and pyrolysis oven (2), arrange one with the drawing mechanism (9) of storage space (91), the opening for feed of the storage space (91) of described drawing mechanism (9) is connected by the discharge port of pipeline with mixing tank (1), and the discharge port of described drawing mechanism (9) is connected by the opening for feed of pipeline with pyrolysis oven (2).
10. sludged waste material comprehensive utilization of energy process system according to claim 6, it is characterized in that: described heat-exchange system (4) comprises first step interchanger (41) through pipeline communication and second stage interchanger (42), the inlet mouth of described first step interchanger (41) connects the air outlet of described pyrolyzer (3), the section of tubing of described heat smoke circulation tube (13) is arranged in first step interchanger (41), and the production well of described second stage interchanger (42) connects the air inlet port of oil engine (11).
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| CN105567327A (en) * | 2016-02-25 | 2016-05-11 | 青岛理工大学 | Method for preparing hydrogen-rich fuel gas through high-humidity sludge gasification based on blast furnace slag waste heat recovery |
| CN106439859A (en) * | 2016-11-30 | 2017-02-22 | 中冶华天南京工程技术有限公司 | Two-stage sludge carbonization and incineration method and system |
| CN107324627A (en) * | 2017-08-21 | 2017-11-07 | 托普工业(江苏)有限公司 | A kind of mud cracker |
| CN109233909A (en) * | 2018-10-09 | 2019-01-18 | 东莞市汇盈生物科技有限公司 | A kind of method that the combustion gas that sludge cracking generates is recycled |
| CN109593536A (en) * | 2018-11-12 | 2019-04-09 | 东莞理工学院 | A kind of plant waste and sludge reduction processing method |
| CN112694356A (en) * | 2020-12-04 | 2021-04-23 | 塔里木大学 | Method for reducing compost nitrogen loss by using composite fruit branch biomass charcoal |
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