CN209193889U - A kind of pyrolysis system with heat recovery - Google Patents
A kind of pyrolysis system with heat recovery Download PDFInfo
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- CN209193889U CN209193889U CN201821495309.2U CN201821495309U CN209193889U CN 209193889 U CN209193889 U CN 209193889U CN 201821495309 U CN201821495309 U CN 201821495309U CN 209193889 U CN209193889 U CN 209193889U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a kind of pyrolysis systems with heat recovery, including pyrolysis subsystem, the pyrolysis subsystem includes pyrolysis oven (6), combustion chamber (5) and burner (3), the pyrolysis gas outlet of the pyrolysis oven (6) is connected with burner (3), the high-temperature flue gas outlet of the combustion chamber (5) is connected with pyrolysis oven (6), it is characterized in that increasing waste heat boiler (10), the high-temperature flue gas outlet increase of the burner (3) connects the high-temperature gas entrance that electric control valve is followed by waste heat boiler (10) all the way.By the way that waste heat boiler is arranged, effectively generating to combustion chamber is more than that high temperature pyrolysis gas needed for current pyrolysis system make full use of and are further also recycled to high-temperature tail gas, and the energy for being conducive to improve system on the whole is conducive to rate.
Description
Technical field
The utility model relates to refuse treatment plant, in particular to a kind of pyrolysis system with heat recovery.
Background technique
As process of modernization constantly accelerates, primary solid waste discharge capacity is growing day by day.Traditional solid waste
Object recycling processing method and processing system cause serious soil and atmosphere pollution, it is difficult to adapt to the demand of sustainable development.Gu
Body waste is a kind of renewable resource, if it is possible to which effective resources integration can create huge economic benefit, mesh
Department, former government also increasingly payes attention to the recycling problem of solid waste resource.As urbanization process of industrialization is accelerated, future
The construction dynamics of China's solid waste treatment facility will be significantly increased.
Pyrolysismethod is heated under anaerobic or anoxia condition to it using the thermal instability of object in solid waste
Distillation makes object generate cracking, forms various new gases, liquid and solid after condensing, and therefrom extracts fuel oil, combustible gas
Process.Pyrolytic technique will not generate nuisance penetrating fluid polluted underground water with respect to landfill disposal technology, cause it is hardly imaginable after
Fruit will not cause foul smell to overflow, the pests such as mosquitos and flies multiply；Opposite power generation by waste combustion, solid waste reducing significant effect, together
When can solve the toxic heavy metal contaminations problem such as " dioxin " and mercury, lead, cadmium.The pyrolysis gas that pyrolysis generates is a kind of combustible gas
Body.Contain fuel gas, including carbon monoxide, hydrogen, methane, other gas from the pyrolysis gas generated in pyrolysis plant (pyrolysis oven)
State hydrocarbon, calorific value is higher, can carry out resource utilization.Resource utilization mode: 1, condensation receipts can be carried out to macromolecular gaseous hydrocarbon
Oil, then combustion gas body will not be coagulated and given to burning；2, it directly directly burns under high-temperature gas.Both modes are finally all using burning
Fuel gas converts harmful substance to the flue gas of complete oxidation.But both modes are all influenced by fuel gas and dust, are led
Equipment is caused to be easy blocking and break down.As material different (thermal decomposition product oil-containing is different), demand are different, recycling mode
Any one be all difficult adapt to customer demand, therefore, it is necessary to which switching can be realized by comprehensively considering two ways, to adapt to become
The material of change or the demand of customer.
Most of pyrolysis gas is all to generate heat by burning to recycle, and pyrolysis gas conveying goes gas fired-boiler to generate steam,
But pyrolysis gas conveying will increase many safety problems.
Since the pyrolysis gas ingredient of different waste outputs is there are very big difference, if any containing a large amount of dust,
Some contains tar, therefore requires different device and condition for its recycling and reuse, and existing equipment is mostly
Its technique and device are designed for fixed one kind or the processing of a type of waste, therefore is difficult through a device come real
The maximum recycling of existing a variety of different types of treatments of wastes produced and pyrolysis gas.
Utility model content
Technical problem to be solved in the utility model is how to make full use of the useless fuel gas generated admittedly of pyrolysis, give up
Slag realizes give up solid volume reduction, innoxious and recycling.
In order to solve the above-mentioned technical problem, the utility model devises a kind of pyrolysis system with heat recovery,
Including pyrolysis subsystem, the pyrolysis subsystem includes pyrolysis oven 6, combustion chamber 5 and burner 3, the pyrolysis gas of the pyrolysis oven 6
Outlet is connected with burner 3, and the high-temperature flue gas outlet of the combustion chamber 5 is connected with pyrolysis oven 6, it is characterised in that increases
Waste heat boiler 10, the high-temperature flue gas outlet increase of the burner 3 connect the High Temperature Gas that electric control valve is followed by waste heat boiler 10 all the way
Body entrance.
The pyrolysis system with heat recovery, it is characterised in that it further include the second waste heat boiler, described
The high-temperature flue gas entry of two waste heat boilers connects the tail gas mouth of pyrolysis oven 6.
The pyrolysis system with heat recovery, it is characterised in that further include air preheater 2, air preheat
The air intake vent of the first passage of device 2 is connected, and the air outlet of first passage is connected after connecing electric control valve with flue gas purification device 40；
The air intake of the second channel of air preheater 2 meets supercharging air blower 26-1, and gas outlet connects burner 3.
The pyrolysis system with heat recovery, it is characterised in that the first passage of the air preheater 2
Air outlet also increase by an access, which connects the high-temperature flue gas outlet that electric control valve is followed by combustion chamber 5.
The pyrolysis system with heat recovery, it is characterised in that the gas outlet cigarette receiving of the waste heat boiler
The air intake of air purifying apparatus 40.
The pyrolysis system with heat recovery, it is characterised in that further include pyrolysis air filter, the heat
The pyrolysis gas outlet of solution furnace first connects pyrolysis gas and crosses accesses burner 3 again after air filtration.
The pyrolysis system with heat recovery, it is characterised in that further include oil recycling subsystem, the heat
The pyrolysis gas outlet of solution furnace first connects the pyrolysis gas outlet of oil recycling subsystem, and the pyrolysis gas outlet of the oil recycling subsystem connects again
Enter burner 3.
The pyrolysis system with heat recovery, it is characterised in that further include oil recycling subsystem, using list
The condensation of grade oil or the condensation of twin-stage oil.
The pyrolysis system with heat recovery, it is characterised in that the gas outlet of the pyrolysis air filter increases
Add to connect electric control valve all the way and be followed by the top of single-stage oil condenser and head into port, the middle and upper part of the single-stage oil condenser is equipped with
Oil solvent entrance, the bottom of the single-stage oil condenser are equipped with oil outlet, and the gas outlet setting of pyrolysis gas is cold in the single-stage oil
The middle and lower part of condenser.
The pyrolysis system with heat recovery, it is characterised in that be additionally provided with oil on the single-stage oil condenser
Condensing heat exchanger, for carrying out cooling processing to high temperature pyrolysis gas；Twin-stage oil condensation includes the first oil condenser 12 and the
Two oil condensers 13, the gas outlet increase of the pyrolysis air filter connect electric control valve all the way and are followed by first oil condenser 12
Bottom side air intake, the opposite side of the side air intake of the bottom of first oil condenser 12 is equipped with side gas outlet, which goes out
Port hight setting is higher than side air intake, and the bottom end of the first oil condenser 12 is equipped with oil outlet；The side of first oil condenser 12 goes out
Port connects the side air intake of the second oil condenser 13, and the ejection port of the second oil condenser 13 connects burner.
Implement the utility model has the following beneficial effects: effectively being generated to combustion chamber by setting waste heat boiler
Make full use of more than high temperature pyrolysis gas needed for current pyrolysis system and further also carry out to high-temperature tail gas recycling benefit
With the energy for being conducive to improve system on the whole is conducive to rate.
Detailed description of the invention
Fig. 1 is the complete system block diagram of waste processing and comprehensive utilization；
Fig. 2 is pyrolysis subsystem+filter subsystem+oil recycling subsystem application system block diagram；
Fig. 3 is pyrolysis subsystem+waste heat recycling subsystem application system block diagram；
Fig. 4 is pyrolysis subsystem+pre- thermal sub-system application system block diagram；
Fig. 5 is pyrolysis subsystem+filter subsystem+waste heat recycling subsystem+pre- thermal sub-system application system block diagram；
Fig. 6 is the application system block diagram condensed containing 2 filters and single-stage oil；
Fig. 7 is the application system block diagram condensed containing nested type filter and single-stage oil.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 is the complete system block diagram of waste processing and comprehensive utilization, and system includes pyrolysis subsystem, filtering subsystem
System, waste heat recycling subsystem, oil recycling subsystem and pre- thermal sub-system.According to the scene of practical application can by pyrolysis subsystem with
One or more subsystems in filter subsystem, waste heat recycling subsystem, oil recycling subsystem and pre-heating system are combined
Matching adapts to different application waste process demands.
Pyrolysis subsystem mainly includes pyrolysis oven 6, the feeding device that pyrolysis oven inlet is arranged in, going for tail portion is arranged in
Slag device, combustion chamber 5, burner 3 and exhaust fan 4-1.The pyrolysis gas outlet of pyrolysis oven 6 is connected to combustion chamber 5 by pipeline
Entrance, the pyrolysis gas that pyrolysis generates is input to combustion chamber 5 and burnt, provides pyrolysis required heat source for pyrolysis oven.Burning
The exhanst gas outlet of room 5 is connected by pipeline with pyrolysis oven, and pyrolysis gas is input to combustion chamber after mixing with air and is fired
It burns and produces high warm flue gas, high-temperature flue gas is input to pyrolysis oven by pipeline, heats pyrolysis oven.
Filter subsystem, including at least one filter 11, the filter 11 can be selected according to the type of gas to be filtered
Select the filter containing a filter cavity, two filter cavities or 3 or more filter cavity.The purpose for increasing filter subsystem exists
In may generate a large amount of dust in pyrolytic process for certain wastes, therefore it is pyrolyzed in generation pyrolysis gas containing big
The dust of amount may influence efficiency of combustion if the pyrolysis gas with a large amount of dust is sent directly into combustion chamber, reduce and burn
The service life of room, the flue gas equally generated, which also contains a large amount of dust equally, influences next pyrolysis oven.Due to each system
If being attached in gas by pipeline containing a large amount of dust, the blocking of pipeline is easily caused for a long time
Problem.If same be sent directly into oil recycling subsystem progress tar recycling for the gas containing a large amount of dust, necessarily cause
Contain a large amount of magazine in the tar of recycling, seriously affects the quality of oil recovery.
Waste heat recycling subsystem can choose the boiler plant of waste heat boiler 10 or other available flue gas.Increase waste heat
The purpose of recycling subsystem is to utilize the energy to greatest extent.High-temperature flue gas, high-temperature flue gas master are generated by combustion chambers burn
It is used to provide heat source to pyrolysis oven.But the heat for combustion chamber generation often occur is more than the needs of pyrolysis oven, usual does
Method is the safety in order to guarantee pyrolysis oven, is discharged or is discharged partial thermal decomposition gas for extra high-temperature flue gas and reduce burning
Pyrolysis gas input.Since entire pyrolysis subsystem is the system continued working, pyrolysis oven is constantly pyrolyzed, constantly
Generate pyrolysis gas.It needs directly to discharge if extra pyrolysis gas can not all burn, is necessarily required to additionally be further added by
New processing equipment discharges again after carrying out harmless processing, therefore cost is higher, and is also unfavorable for the recycling of the energy.If it is
By discharging extra high-temperature flue gas after burning, great energy waste is equally existed, the release of same a large amount of high-temperature flue gas
There are great security risks.Therefore waste heat recycling subsystem is introduced, all pyrolysis gas that pyrolysis generates all are sent to combustion
It burns in room and burns, by the high-temperature flue gas Pan Lu of generation to waste heat boiler 10, the thermal energy of high-temperature flue gas is absorbed by waste heat boiler 10,
Realize the maximization to pyrolysis gas using energy source.
Oil recycling subsystem, can be used the condensation of single-stage oil or twin-stage oil condenser carries out the tar in pyrolysis gas to realize
Recycling, preferably twin-stage oil condenser.The twin-stage oil condenser includes the first oil condenser 12 and the second oil condenser 13, described
The external pyrolysis feed channel of the side air intake of the bottom of first oil condenser 12, pyrolysis gas enter the first oil condensation from the side air intake
Device 12, the top of first oil condenser 12 ejection port closing or can also external pyrolysis feed channel, pyrolysis gas can also
To head into port into the first oil condenser 12 from this, the opposite side of the side air intake of the bottom of first oil condenser 12 is set
There is side gas outlet, side outlet open height setting is higher than side air intake, and the bottom end of the first oil condenser 12 is equipped with oil outlet.First
The side gas outlet of oil condenser 12 connects the side air intake of the second oil condenser 13, and the ejection port of the second oil condenser 13 connects combustion
Room is burnt, the pyrolysis gas for removing tar is input in combustion chamber 5 and is burnt.The bottom end of second oil condenser is equipped with oil outlet,
The oil outlet of the bottom end of first oil condenser 12 and the second oil condenser 13 is connected to water sealed tank 18, is sealed by water sealed tank
It is precipitated with oil, while also realizing cleaning to tar, the bottom of water sealed tank 18 is equipped with oil outlet, by pipeline by the tar of output
It is output to condensate tank(trap) 19, the condensate tank(trap) 19 is cooled down by recirculated water, and tar after cooling is sent by pressure oil pump part
The solvent shower nozzle entrance for returning to the first oil condenser 12, the principle to mix is easier according to identical liquid, by the part of recycling
Tar helps to dissolve the tar in the first oil condenser 12 in pyrolysis gas as the spray lime set of the first oil condenser 12.First
The tar spray lime set that tar in oil condenser 12 in pyrolysis gas encounters identical component falls on first under condensation by continuous absorb
The bottom of condenser is discharged by the bottom oil outlet of the first condenser.In order to promote the coke in further removal pyrolysis gas
Oil, the second oil condenser 13 receive the pyrolysis gas after the first oil condenser 12 deoils, are reduced by water cooling heat exchanger 14-1
The temperature of pyrolysis gas in second oil condenser 13, the tar in pyrolysis gas after cooling be easier to condense and under to fall on the second oil cold
The bottom of condenser is discharged by the bottom oil outlet of the second oil condenser.Condensate tank(trap) 19 and water cooling heat exchanger 14-1 use water
Cold mode is designed with the circulation that water circulating pump keeps cooling water, is additionally provided with outer loop water cooler constantly to circulation
Cooling water carries out cooling treatment.
Fig. 6 is the application system block diagram condensed containing 2 filters and single-stage oil；Fig. 7 be containing nested type filter and
The application system block diagram of single-stage oil condensation.Respectively smoke filter and pyrolysis air filter, two filters is generally used
High-temperature filter, the entrance of smoke filter are connected with the high-temperature flue gas gas outlet of combustion chamber 5, the gas outlet of smoke filter
Connect the high-temperature flue gas entry of pyrolysis oven 6.It is pyrolyzed air filter and smoke filter can also be using using the same nested type mistake
Filter, the nested type filter include at least two-way and filter access, and each filtering access contains independent filter cavity, described
The access of filtering all the way of nested type filter is as pyrolysis air filter, the access conduct of filtering all the way of the nested type filter
Each filter cavity of smoke filter, the nested type filter is independently arranged, between using with thermal conduction characteristic partition
It is isolated.
Oil recycling subsystem is condensed using single-stage oil, and the gas outlet increase for being pyrolyzed air filter connects electric control valve all the way and is followed by
The top of single-stage oil condenser heads into port, and the middle and upper part of single-stage oil condenser is equipped with oil solvent entrance, and or water condensation spray
The bottom of head entrance, single-stage oil condenser is equipped with oil outlet, and the gas outlet of pyrolysis gas is arranged in the single-stage oil condenser
Lower part.Oily condensing heat exchanger is additionally provided on single-stage oil condenser, for carrying out cooling processing to high temperature pyrolysis gas.It specially can be with
Increase a weed buffer 42 and a pressure pump 43, water condensation spray head is introduced from outside into cooling water into single-stage oil condenser
Cooling water is sprayed, is cooled down to pyrolysis gas.Control oil solvent entrance be can choose by oil spout come cold oil operation, it can also be with
It selects individually or increases simultaneously through water condensation spray head spray water to cool down pyrolysis gas, realize the purpose of oily condensing recovery.
The reason of increasing oil recycling subsystem is that there are partial wastes can generate tar or other cokes in pyrolytic process
The fuel value of oil, these tar is very high, may if the pyrolysis gas containing tar is directly output to burn in combustion chamber
The heat generated burn considerably beyond heat needed for pyrolysis oven, or even is also more than the receiving model of the heat of waste heat boiler recycling
It encloses.Therefore the problem of will cause the wasting of resources.Recycling or portion are carried out to the tar contained in pyrolysis gas in order to solve this problem
Divide tar to be recycled, reduces or remove the tar in pyrolysis gas, reduce the fuel value of pyrolysis gas.
Pre- thermal sub-system, high-temperature flue gas are input to pyrolysis oven and provide heat to pyrolysis oven, be discharged by tail gas discharger,
Although high when the temperature of the tail gas of discharge does not come out from combustion chamber just, but high-temperature gas, therefore carry a large amount of
Heat source.Usual way is exhausted directly in atmosphere after being purified by fume cleaning device.For further sufficiently benefit
It with the high-temperature gas, proposes and increases pre- thermal sub-system, mainly include air preheater, the air preheater includes two only
Vertical air duct is directly isolated by heat exchanger components, and a channel connects air, another channel connects high-temperature tail gas, high temperature tail
Gas constantly heats the air in another channel, while realizing the cooling of oneself.The air intake vent for connecing the channel of air connects
Blower, air outlet connect burner.The air intake vent for connecing high-temperature tail gas connects exhaust fan, and air outlet connects fume cleaning device, after cooling
Flue gas by flue gas purification device carry out harmless treatment after be discharged into atmosphere.It is further improved and increases pipe path, it should
Pipe path is equipped with electrically operated valve, the flue gas after cooling is connected to the outlet of combustion chamber by pipeline, with high-temperature flue gas
Mixing is realized that adjustment is input to the purpose of the high-temperature flue gas of pyrolysis oven by adjusting the uninterrupted of the flue gas after cooling, is adjusted
The uninterrupted of flue gas after whole cooling is equipped with electrically operated valve by adjusting the pipe path to realize.
Embodiment 1:
Fig. 3 is pyrolysis subsystem+waste heat recycling subsystem application system block diagram, and pyrolysis subsystem+waste heat recycles subsystem
System includes mainly combustion chamber 5, burner 3, pyrolysis oven 6, the feeding device that pyrolysis oven inlet is arranged in, tail portion is arranged in
Remove slag device and exhaust fan 4-1.The pyrolysis gas outlet of pyrolysis oven 6 is connected to the entrance of combustion chamber 5 by pipeline, and pyrolysis is produced
Raw pyrolysis gas is input to combustion chamber 5 and burns, heat source needed for providing pyrolysis for pyrolysis oven.The exhanst gas outlet of combustion chamber 5 is logical
Piping is divided into two, and a pipeline is connected with pyrolysis oven, another pipeline and connects waste heat boiler, is designed on two pipelines
Electric control valve.The flow for the high-temperature flue gas that master control system enters pyrolysis oven by control electric control valve control controls pyrolysis to realize
Furnace is maintained at preset in the range of.When the flow required for the pyrolysis gas that combustion chamber generates is more than pyrolysis oven, more than control
The electric control valve control section high-temperature flue gas of heat boiler access is discharged into recycling of the waste heat boiler realization to extra flue gas.
Embodiment 2:
Fig. 2 is pyrolysis subsystem+filter subsystem+oil recycling subsystem application system block diagram, and pyrolysis subsystem+oil returns
Subsystem is received, when containing the tar such as a large amount of tar in pyrolysis gas, if completely burned substantially exceeds needed for pyrolysis itself
Energy, it is therefore necessary to increase oil recovery apparatus and all or part of recycling is carried out to the tar in pyrolysis gas, reduce pyrolysis gas
Fuel value, while a kind of byproduct can also be increased, there is biggish economic value.Increase an oil in pyrolysis subsystem to return
Receive subsystem, it is preferred to use twin-stage oil condenser.Twin-stage oil condenser includes the first oil condenser 12 and the second oil condenser
13, the pyrolysis gas outlet of pyrolysis oven is connected by pipeline with the side air intake of the bottom of the first oil condenser 12, and centre is equipped with
Electric control valve, pyrolysis gas enter the first oil condenser 12, the ejection port at the top of the first oil condenser 12 from the side air intake
Closing, the opposite side of the side air intake of the bottom of first oil condenser 12 are equipped with side gas outlet, side outlet open height setting
Higher than side air intake, the bottom end of the first oil condenser 12 is equipped with oil outlet.The side gas outlet of first oil condenser 12 connects the second oil
The ejection port of the side air intake of condenser 13, the second oil condenser 13 connects combustion chamber, and the pyrolysis gas of tar will be gone to be input to
It burns in combustion chamber 5.The bottom end of second oil condenser is equipped with oil outlet, the first oil condenser 12 and the second oil condenser 13
The oil outlet of bottom end be connected to water sealed tank 18, be sealed by water sealed tank and oil precipitate, while also realized to the clear of tar
It washes, the bottom of water sealed tank 18 is equipped with oil outlet, and the tar of output is output to condensate tank(trap) 19, the condensate tank(trap) 19 by pipeline
It is cooled down by recirculated water, tar after cooling sends back to the solvent shower nozzle of the first oil condenser 12 by pressure oil pump part
Entrance is easier the principle to mix according to identical liquid, coagulates the part tar of recycling as the spray of the first oil condenser 12
Liquid helps to dissolve the tar in the first oil condenser 12 in pyrolysis gas.Tar in the first oil condenser 12 in pyrolysis gas is met
The bottom for being fallen on the first condenser under continuous absorption condensation to the tar spray lime set of identical component, passes through the first condenser
The discharge of bottom oil outlet.In order to promote the tar in further removal pyrolysis gas, the second oil condenser 13, which receives, passes through first
Oil condenser 12 deoil after pyrolysis gas, by water cooling heat exchanger 14-1 reduce the second oil condenser 13 in pyrolysis gas temperature,
The tar in pyrolysis gas after cooling be easier to condense and under fall on the bottom of the second oil condenser, pass through the second oil condenser
The discharge of bottom oil outlet.Condensate tank(trap) 19 and water cooling heat exchanger 14-1 use water-cooling pattern, are designed with water circulating pump and keep cooling
The circulation of water is additionally provided with outer loop water cooler and constantly carries out cooling treatment to the cooling water of circulation.Due to pyrolysis oven
High temperature pyrolysis gas be directly inputted to oil condenser, therefore be more suited to the less application of dust content in pyrolysis gas.
Embodiment 3:
Pyrolysis subsystem+filter subsystem+oil recycles subsystem, increases filter subsystem, reason compared to embodiment 2
It is in pyrolysis gas of the partial waste by pyrolysis generation containing a large amount of dust, if the pyrolysis gas containing a large amount of dust is straight
Tap into the oily condensing recovery of row then may after oil in may also contain a large amount of dust, the equipment for thering is pyrolysis gas to pass through and pipeline
A large amount of dust may be all accumulated, the failure and security risk of the blocking of pipeline are caused.It is therefore desirable to increase to this kind of application
Add filter operation, and increase filter subsystem, the pyrolysis gas outlet of pyrolysis oven is increased into a pipeline to filter, filter
Outlet connect the first oil condenser 12 top ejection port, filtered pyrolysis gas from this head into port into first oil
Condenser 12.The system is more flexible, and different accesses is selected according to the characteristics of pyrolysis gas, if containing a large amount of in pyrolysis gas
Dust then opens the electric control valve between filter, pyrolysis gas is first input into filter and is dusted operation, then will be removed
Pyrolysis apparatus after dirt is input to the first oil condenser and starts oil recovery operations；When in pyrolysis gas do not contain dust when, then between open
The electric control valve between the first oil condenser 12 is opened, pyrolysis gas is directly inputted to the first oil condenser and starts oil recycling behaviour
Make.
Due to containing a large amount of tar, tar especially therein, when system just brings into operation, in filter in pyrolysis gas
Membrane tube temperature it is lower, when pyrolysis gas just starts to be input to membrane tube, the tar in pyrolysis gas is easy to entering in membrane tube to the cold
The problem of being condensed at mouthful, therefore being easy to happen tar blocking membrane tube.In order to solve this problem, also add one from combustion chamber to
The connecting pipe of filter inlet, the pipeline are equipped with electric control valve.When system is just started to work, pyrolysis gas and mistake are first closed
Electric control valve between filter opens pyrolysis gas and the electric control valve between the first oil condenser 12, and pyrolysis gas is directly defeated
Enter to the first oil condenser first directly start oil recovery operations, while open combustion chamber to filter inlet connecting pipe electricity
Valve is controlled, high-temperature flue gas is first input into filter, high-temperature flue gas is allowed to preheat the filter chamber and membrane tube of filter, when
When preheating reaches predetermined temperature, the electric control valve of the connecting pipe of closing combustion chamber to filter inlet closes pyrolysis
Gas and the electric control valve between the first oil condenser 12, while the electric control valve between pyrolysis gas and filter is opened, it will be hot
It vents one's spleen to be first input into filter and is dusted operation, then the pyrolysis apparatus after dedusting is input to the first oil condenser and starts oil time
It brings drill to an end work.The problem of can solve tar blocking membrane tube in this way.
Solving the problems, such as tar blocking membrane tube, there are also a kind of schemes, and using nested type filter, nested type filter includes 2
A or 2 or more filter cavities, two filter cavities work independently, between pass through Heat Conduction Material separation.Specific to the application,
Can only filter cavity is equipped with membrane tube wherein, the high temperature pyrolysis gas filtered will be needed to be connected to this equipped with membrane tube
On channel, high-temperature flue gas is connected on the channel for being equipped with setting membrane tube.When system brings into operation, first opens and be equipped with setting membrane tube
Channel on electric control valve, allow high-temperature flue gas to be introduced into and passed through air filtration, high-temperature flue gas is led by two filter cavities
Hot material heats the filter cavity for being equipped with membrane tube, while also heating to membrane tube itself, when the temperature of membrane tube reaches
When pre-set value, the electric control valve being then turned on this channel equipped with membrane tube, high temperature pyrolysis gas just initially enter filtering
Device is filtered operation, since the membrane tube in filter had been warmed up, greatly reduces and asking for tar condensation occurs
The probability of topic.
Embodiment 4:
Pyrolysis subsystem+waste heat recycling subsystem+filter subsystem+oil recycles subsystem, the pyrolysis generated for pyrolysis
Gas product is not suitable for storage or long range is transported in other equipment, if there is extra can not also be directly discharged to atmosphere
In, therefore be typically all that the pyrolysis gas that all pyrolysis generate all is sent into combustion chamber to burn, it is being carried out after burning
Harmless treatment heel row is to atmosphere.Most common application mode is that the pyrolysis gas that pyrolysis generates is sent into combustion chamber in pyrolysis subsystem
Burning generates high-temperature flue gas, and high-temperature flue gas is for being pyrolyzed stove heating.But the heat that pyrolysis gas completely burned generates is generally not
Can be just identical as heat needed for pyrolysis oven, other fuel gas aftercombustions are required supplementation with for insufficient；Most of feelings
It is that the heat that pyrolysis gas completely burned generates is greater than heat required for pyrolysis oven under condition, past practice is will be extra
High-temperature flue gas carries out harmless dissolve into after flue gas purification device carries out harmless treatment and is directly discharged to atmosphere, in such high-temperature flue gas
You can't get effective uses for the high temperature heat of carrying, increase a bypass in exhanst gas outlet in order to solve this problem, by portion
Flue gas is divided to be introduced into waste heat boiler 10, which is equipped with electric control valve.The temperature for monitoring pyrolysis oven, when pyrolysis furnace temperature reaches
When arriving or being more than pre-set value, control electric control valve draws part high-temperature flue gas to waste heat boiler 10, otherwise controls electrically-controlled valve
Door closes high-temperature flue gas to the direct access of waste heat boiler 10.Extra high-temperature flue gas is sent into flue gas after waste heat boiler cools down
Purification device is discharged into atmosphere after carrying out harmless treatment.
Embodiment 5:
Pyrolysis subsystem+pre- thermal sub-system+oil recycling subsystem+waste heat recycles subsystem, in embodiment 1,2,3 or 4
On the basis of increase pre- thermal sub-system, Fig. 4 is pyrolysis subsystem+pre- thermal sub-system application system block diagram, and Fig. 5 is pyrolysis subsystem
+ filter subsystem+waste heat recycles subsystem+pre- thermal sub-system application system block diagram；High-temperature flue gas is input to pyrolysis oven to heat
It solves furnace and heat is provided, be discharged by tail gas discharger, although high when the temperature of the tail gas of discharge does not come out from combustion chamber just,
But high-temperature gas, therefore still carry a large amount of heat source.Usual way is after being purified by fume cleaning device
It is exhausted directly in atmosphere.It in order to further make full use of the high-temperature gas, proposes and increases pre- thermal sub-system, main includes sky
Air preheater, the air preheater include two independent air ducts, are directly isolated by heat exchanger components, a channel connects
Air, another channel connect high-temperature tail gas, and high-temperature tail gas constantly heats the air in another channel, while realizing certainly
Oneself cooling.The air intake vent for connecing the channel of air is given a dinner for a visitor from afar machine, and air outlet connects burner.The air intake vent for connecing high-temperature tail gas connects tail gas wind
Machine, air outlet connect fume cleaning device, and the flue gas after cooling is discharged into big after flue gas purification device carries out harmless treatment
In gas.It is further improved and increases pipe path, which is equipped with electrically operated valve, and the flue gas after cooling is connected by pipeline
Be connected to the outlet of combustion chamber, the mixing with high-temperature flue gas, by adjusting the uninterrupted of the flue gas after cooling come realize adjustment it is defeated
Enter the purpose to the high-temperature flue gas of pyrolysis oven, the uninterrupted of the flue gas after adjustment cooling is equipped with by adjusting the pipe path
Electrically operated valve is realized.
It can also include that tar utilizes subsystem, the tar of recycling is sent into oil condenser outside as oil solvent, also
A large amount of tar.Tar is also the byproduct of a unusual high value, may be selected to increase condensate drum, the tar that condensation is generated
It is directly inputted to condensate drum to be stored and transported away；Another Land use systems is sent directly into the boiler for supporting fuel oil
Perhaps direct combustion heating boiler or smelting furnace in smelting furnace 24.
The combination of subsystems is not limited to the combination embodiment that above embodiments are enumerated, and user can be with complete
Each combination, or the integrated system that configuration is most complete are selected according to practical application scene entirely, selected according to application scenarios
Select part subsystem work and operating mode.Specific combination includes but is not limited to: pyrolysis subsystem+filter subsystem；It is remaining
Recuperation of heat subsystem, oil recycling subsystem and pre- thermal sub-system
Pyrolysis subsystem+filter subsystem, pyrolysis subsystem+waste heat recycling subsystem, pyrolysis subsystem+oil recycle subsystem
System, pyrolysis subsystem+pre- thermal sub-system, pyrolysis subsystem+filter subsystem+waste heat recycle subsystem, pyrolysis subsystem+filtering
Subsystem+oil recycles subsystem, pyrolysis subsystem+filter subsystem+pre- thermal sub-system, pyrolysis subsystem+filter subsystem+remaining
Recuperation of heat subsystem+oil recycling subsystem, pyrolysis subsystem+filter subsystem+waste heat recycle subsystem+pre- thermal sub-system, heat
Solve subsystem+filter subsystem+waste heat recycling subsystem+oil recycling subsystem+pre- thermal sub-system, pyrolysis subsystem+oil recycling
Subsystem+tar utilizes subsystem, pyrolysis using subsystem, pyrolysis subsystem+filter subsystem+oil recycling subsystem+tar
Subsystem+filter subsystem+waste heat recycling subsystem+oil recycling subsystem+tar utilizes subsystem, pyrolysis subsystem+filtering
Subsystem+waste heat recycling subsystem+oil recycling subsystem+pre- thermal sub-system+tar utilizes subsystem.
Fig. 1 is the complete system block diagram of waste processing and comprehensive utilization, is most full combined application mode, specially
Pyrolysis subsystem+filter subsystem+waste heat recycling subsystem+oil recycling subsystem+pre- thermal sub-system+tar utilizes subsystem.
Once be described in detail the connection type of the lower system: system includes combustion chamber 5, burner 3, pyrolysis oven 6, air preheater 2, remaining
Heat boiler 10, filter 11, the first oil condenser 12, the second oil condenser 13, water recirculator 16, water sealed tank 18, condensation
Slot 19, condensate drum 22, smelting furnace 24, smelt burner 23, slag-draining device, flue gas purification device, exhaust fan 4-1, into
Expect device, waste heat fan 4-4, pyrolysis gas booster fan 4-2, fixed gas booster fan 4-3, pressure oil pump 20, water circulating pump, oil
Cold heat exchanger 14-1, condensate tank(trap) heat exchanger 14-2.The entrance of combustion chamber 5 is arranged in burner 3, and the exhanst gas outlet of combustion chamber 5 is logical
Piping one divide for four respectively with high-temperature filter 11, air preheater 2, the high-temperature flue gas entry of pyrolysis oven, waste heat boiler 10
The air outlet of first passage be connected, electric control valve is respectively equipped on each access, for controlling the on-off of the access.
The entrance of pyrolysis oven is connected with feeding device, the bottom of the other end be equipped with slag-drip opening, slag-drip opening and slag-draining device to
Even, the fag-end generated after pyrolysis is discharged from the slag-draining device, and the high-temperature flue gas outlet of pyrolysis oven divides two-way, wherein connecing electricity all the way
Merge with the exhanst gas outlet of combustion chamber 5 with the connecting path of high-temperature filter 11 after control valve and be connected to high-temperature filter 11,
Another way is connected after connecing electric control valve with the side air intake of the bottom of the first oil condenser 12.
The outlet of high-temperature filter divides two-way, connect all the way after electric control valve and pyrolysis gas booster fan 4-2 with 3 phase of burner
Connection, another way are connected after connecing electric control valve with the ejection port at the top of the first oil condenser 12.The mesh of this connection
Be pyrolysis gas filtering after if not removing direct burning to tar all in pyrolysis gas, the thermal energy for generation of burning is long-range
Heat source needed for pyrolysis oven selects control section pyrolysis gas directly to burn, part by controlling the two electric control valves
Reclaimer operation is carried out to the tar that its inside is contained.
The opposite side of the side air intake of the bottom of first oil condenser 12 is equipped with side gas outlet, and side outlet open height setting is high
Oil outlet is equipped in the bottom end of side air intake, the first oil condenser 12.It is cold that the side gas outlet of first oil condenser 12 connects the second oil
The side air intake of condenser 13, the ejection port of the second oil condenser 13 connect fixed gas booster fan 4-3 carry out pressurization be followed by burning
Device 3.The bottom end of second oil condenser 13 is equipped with oil outlet, the bottom end of the first oil condenser 12 and the second oil condenser 13 it is fuel-displaced
Mouth is all connected to water sealed tank 18, is sealed by water sealed tank and oil precipitates, while also realizing the cleaning to tar, and second is oily cold
Oily condensing heat exchanger 14-1 is additionally provided on condenser 13；The bottom of water sealed tank 18 is equipped with oil outlet, the oil outlet and 19 phase of condensate tank(trap)
Even, condensate tank(trap) 19 is equipped with condensate tank(trap) heat exchanger 14-2, is cooled down by recirculated water.Condensate tank(trap) heat exchanger 14-2 and oil are cold
Solidifying heat exchanger 14-1 is connected with water recirculator 16, and access is equipped with water circulating pump, carries out water by water circulating pump and follows
Ring.The oil outlet of condensate tank(trap) 19 first connects pressure oil pump 20, tri- tunnel Zai Fen: connect all the way after electric control valve with the first oil condenser 12
Solvent shower nozzle entrance is connected, connect all the way after electric control valve with smelt burner 23 and be connected, connect all the way after electric control valve with it is cold
Lime set tank is connected.Smelt the inlet that smelting furnace 24 is arranged again in burner 23.
The tail gas mouth of pyrolysis oven 6 is connected after meeting exhaust fan 4-1 with the air intake vent of the first passage of air preheater 2, the
The air outlet in one channel divides two-way: being connected after connecing electric control valve all the way with the exhanst gas outlet of combustion chamber 5, another way connects electrically-controlled valve
It is connected behind the door with flue gas purification device 40.The air intake of the second channel of air preheater 2 meets supercharging air blower 26-1, out
Port connects burner 3.High-temperature tail gas constantly heats the air in another channel, while realizing the cooling of oneself.
Desorption tube is designed in the pyrolysis gas outlet position of booster fan 4-2, fixed gas booster fan 4-3 and pyrolysis oven
(25-1,25-2,25-3) is used for release gas under abnormal conditions.
Disclosed above is only a kind of embodiment of the utility model, cannot limit the utility model certainly with this
Interest field, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to this reality
The equivalent variations made by novel claim, still falls within the scope of the utility model.
Claims (10)
1. a kind of pyrolysis system with heat recovery, including pyrolysis subsystem, the pyrolysis subsystem include pyrolysis oven
(6), the pyrolysis gas outlet of combustion chamber (5) and burner (3), the pyrolysis oven (6) is connected with burner (3), the burning
The high-temperature flue gas outlet of room (5) is connected with pyrolysis oven (6), it is characterised in that increases waste heat boiler (10), the burner
(3) high-temperature flue gas outlet increase connects the high-temperature gas entrance that electric control valve is followed by waste heat boiler (10) all the way.
2. the pyrolysis system according to claim 1 with heat recovery, it is characterised in that further include the second waste heat
Boiler, the high-temperature flue gas entry of second waste heat boiler connect the tail gas mouth of pyrolysis oven (6).
3. the pyrolysis system according to claim 1 with heat recovery, it is characterised in that further include air preheat
Device (2), the air intake vent of the first passage of air preheater (2) are connected, the air outlet of first passage connect after electric control valve with flue gas
Purification device (40) is connected；The air intake of the second channel of air preheater (2) connects supercharging air blower (26-1), gas outlet
Connect burner (3).
4. the pyrolysis system according to claim 3 with heat recovery, it is characterised in that the air preheater
(2) air outlet of first passage also increases by an access, which, which connects electric control valve and be followed by the high-temperature flue gas of combustion chamber (5), goes out
Mouthful.
5. the pyrolysis system according to claim 4 with heat recovery, it is characterised in that the waste heat boiler
Gas outlet cigarette receiving air purifying apparatus (40) air intake.
6. according to claim 1 to the pyrolysis system described in 5 any one with heat recovery, it is characterised in that also wrap
Pyrolysis air filter is included, the pyrolysis gas outlet of the pyrolysis oven, which first connects pyrolysis gas, to be crossed after air filtration and access burner (3) again.
7. the pyrolysis system according to claim 6 with heat recovery, it is characterised in that further include oil recycling
System, the pyrolysis gas outlet of the pyrolysis oven first connect the pyrolysis gas outlet of oil recycling subsystem, the heat of the oil recycling subsystem
It vents one's spleen to export and accesses burner (3) again.
8. the pyrolysis system according to claim 7 with heat recovery, it is characterised in that further include oil recycling
System is condensed using the condensation of single-stage oil or twin-stage oil.
9. the pyrolysis system according to claim 8 with heat recovery, it is characterised in that the pyrolysis gas filtering
The gas outlet of device, which increases to connect electric control valve all the way and be followed by the top of single-stage oil condenser, heads into port, the single-stage oil condenser
Middle and upper part be equipped with oil solvent entrance, the bottom of the single-stage oil condenser is equipped with oil outlet, and the gas outlet setting of pyrolysis gas exists
The middle and lower part of the single-stage oil condenser.
10. the pyrolysis system according to claim 9 with heat recovery, it is characterised in that the single-stage oil condensation
Oily condensing heat exchanger is additionally provided on device, for carrying out cooling processing to high temperature pyrolysis gas；The twin-stage oil condensation includes the first oil
Condenser (12) and the second oil condenser (13), the gas outlet increase of the pyrolysis air filter connect electric control valve all the way and are followed by institute
State the side air intake of the bottom of the first oil condenser (12), the opposite side of the side air intake of the bottom of first oil condenser (12)
Equipped with side gas outlet, side outlet open height setting is higher than side air intake, and the bottom end of the first oil condenser (12) is equipped with oil outlet；
The side gas outlet of first oil condenser (12) connects the side air intake of the second oil condenser (13), the ejection of the second oil condenser (13)
Port connects burner.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055491A (en) * | 2022-06-17 | 2022-09-16 | 上海治实合金科技有限公司 | Continuous recovery system of fiber reinforced composite material |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055491A (en) * | 2022-06-17 | 2022-09-16 | 上海治实合金科技有限公司 | Continuous recovery system of fiber reinforced composite material |
| CN115055491B (en) * | 2022-06-17 | 2024-01-26 | 上海治实合金科技有限公司 | Continuous recovery system for fiber reinforced composite material |
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