CN209039394U - A kind of system that pyrolysis gas and oil recycles - Google Patents
A kind of system that pyrolysis gas and oil recycles Download PDFInfo
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- CN209039394U CN209039394U CN201821483245.4U CN201821483245U CN209039394U CN 209039394 U CN209039394 U CN 209039394U CN 201821483245 U CN201821483245 U CN 201821483245U CN 209039394 U CN209039394 U CN 209039394U
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Abstract
The utility model discloses a kind of systems that pyrolysis gas and oil recycles, it is characterized by comprising pyrolysis systems and oil recycling subsystem, oil recycling subsystem includes the first oil condenser and the second oil condenser, the pyrolysis gas outlet of pyrolysis oven first connects the side air intake that electric control valve is followed by the bottom of the first oil condenser, and the opposite side of the side air intake of the bottom of the first oil condenser is equipped with side gas outlet；The side gas outlet of first oil condenser connects the side air intake of the second oil condenser, and oily condensing heat exchanger is equipped in the second oil condenser, and the top of the second oil condenser is arranged in condensed pyrolysis gas outlet；First oil condenser is equipped with solvent shower nozzle, sends tar solvent forth.The system is particularly suitable for the scene of the waste pyrolysis for containing the tar such as a large amount of tar with pyrolysis gas processing, heat source needed for pyrolysis directlys adopt the pyrolysis gas direct heating that pyrolysis generates, extra tar is condensed by two-stage oil to be recycled in pyrolysis gas, oil-containing in pyrolysis gas can be carried out recycling and reusing as far as possible.
Description
Technical field
The utility model relates to refuse treatment plant, in particular to a kind of system that pyrolysis gas and oil recycles.
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 method that pyrolysis gas and oil recycles, special
Sign is for waste to be sent into pyrolysis oven by transmission device, is pyrolyzed in pyrolysis oven, is pyrolyzed the pyrolysis gas part of generation
Combustion chamber is sent back to after first passing through oil recycling, is partially sent directly into combustion chamber；The pyrolysis gas generated by adjusting pyrolysis
The ratio being sent into oil removal treatment and being sent directly into combustion chamber, controls the temperature of combustion chamber within the preset range.
The method that the pyrolysis gas and oil recycles, it is characterised in that the pyrolysis gas part for being pyrolyzed generation first passes through filtering
Device is dusted processing, then realizes that oil returns to the tar progress condensation operation in filtered pyrolysis gas using the method for oil condensation
Receipts processing.
The method of the waste processing and comprehensive utilization, it is characterised in that lead to the tar fraction that oil recycling recycles
Solvent of the solvent shower nozzle entrance of oil condensation as oil condenser is sent into after crossing pressure oil pump pressurization.
The method that the pyrolysis gas and oil recycles, it is characterised in that realize using using two-stage oil condensation operation to heat
Oil in venting one's spleen carries out reclaimer operation, and first by first oil condenser that is input to of pyrolysis gas, the first oil condenser is by from upper
Hold that carry out absorption condensation by spraying hot to identical with ingredient in pyrolysis gas low-temperature oil is sprayed in the pyrolysis gas in the first oil condenser
Tar in venting one's spleen condenses the bottom for falling on the first oil condenser under the tar condensation of production, is discharged by the oil outlet of bottom；
Pyrolysis gas after the first oil condenser condensation operation, which is input to again in the second oil condenser, further to be condensed, and second
It is equipped with oily condensing heat exchanger in oil condenser, the pyrolysis gas in the second oil condenser is further dropped by oily condensing heat exchanger
Temperature, remaining tar ingredients condensation in the pyrolysis gas after cooling simultaneously sinks to the second oil condenser bottom, and passes through bottom
The oil outlet in portion is discharged.
The method that the pyrolysis gas and oil recycles, it is characterised in that further include that tar utilizes subsystem, the coke of recycling
Oily part is sent into oil condenser as oil solvent and is utilized, partially will tar that condensation generates be input to condensate drum carry out storage or
It is sent into and supports the boiler of fuel oil perhaps direct combustion heating boiler or smelting furnace in smelting furnace.
A kind of system that pyrolysis gas and oil recycles, it is characterised in that described including pyrolysis system and oil recycling subsystem
Pyrolysis includes combustion chamber 5, burner 3 and pyrolysis oven 6, and the oil recycling subsystem includes that the first oil condenser 12 and the second oil are cold
Condenser 13, the pyrolysis gas outlet of the pyrolysis oven 6 first connect the side air intake that electric control valve is followed by the bottom of the first oil condenser 12,
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 higher than side and enters gas
Mouthful, 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 condenser 13
Side air intake, the second oil condenser 13 is interior equipped with oily condensing heat exchanger 14-1, and condensed pyrolysis gas outlet setting is in the second oil
The top of condenser 13；First oil condenser 12 is equipped with solvent shower nozzle, sends tar solvent forth.
The system that the pyrolysis gas and oil recycles, it is characterised in that further include condensate tank(trap) 19, water sealed tank 18 and pressurization
The bottom oil outlet of oil pump 20, first oil condenser 12 and the second oil condenser 13 all with water sealed tank 18, water sealed tank 18
The oil discharge outlet of bottom connects condensate tank(trap) 19 by pipeline, the outlet of the condensate tank(trap) first connect pressure oil pump 20 be followed by after electric control valve with
The solvent shower nozzle entrance of first oil condenser 12 is connected.
The system that the pyrolysis gas and oil recycles, it is characterised in that it further include high-temperature filter 11, the pyrolysis oven 6
Pyrolysis gas outlet increase an access, first connect the entrance that electric control valve is followed by high-temperature filter 11, the high-temperature filter 11
Outlet connect the gas outlet that 12 top of the first oil condenser is accessed after electric control valve.
The system that the pyrolysis gas and oil recycles, it is characterised in that further include smelting furnace 24 or condensate drum 22, institute
State pressure oil pump 20 outlet increase a pipeline first connect an electric control valve connect again smelting furnace 24 smelting burner 23 and/
Or it first connects an electric control valve and connects condensate drum again.
The system that the pyrolysis gas and oil recycles, it is characterised in that further include water recirculator 16, oil condensation is changed
Hot device 14-1 and condensate tank(trap) heat exchanger 14-2 passes through water lines and water recirculator 16 together with and being equipped with water circulating pump.
Implement the utility model has the following beneficial effects: the system be particularly suitable for pyrolysis gas containing a large amount of tar etc. it is burnt
The scene of the waste pyrolysis processing of oil is pyrolyzed required heat source and directlys adopt the pyrolysis gas direct heating that pyrolysis generates, pyrolysis gas
In extra tar condensed by two-stage oil to be recycled, oil-containing in pyrolysis gas can be subjected to recycling and reusing as far as possible,
The byproduct of pyrolysis processing is increased, there is biggish economic benefit.
Detailed description of the invention
Fig. 1 is the complete system block diagram of waste processing and comprehensive utilization；
Fig. 2 is pyrolysis system+filter subsystem+oil recycling subsystem application system block diagram；
Fig. 3 is pyrolysis system+waste heat recycling subsystem application system block diagram；
Fig. 4 is pyrolysis system+pre- thermal sub-system application system block diagram；
Fig. 5 is pyrolysis system+filter subsystem+waste heat recycling subsystem+pre- thermal sub-system application system block diagram.
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 be waste processing and comprehensive utilization complete system block diagram, system include pyrolysis system, filter subsystem,
Waste heat recycles subsystem, oil recycling subsystem and pre- thermal sub-system.It can be by pyrolysis system and filtering according to the scene of practical application
One or more subsystems in subsystem, waste heat recycling subsystem, oil recycling subsystem and pre-heating system are combined matching
Adapt to different application waste process demands.
Pyrolysis system mainly includes pyrolysis oven 6, the feeding device that pyrolysis oven inlet is arranged in, removing slag for tail portion is arranged in
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
The pyrolysis gas that pyrolysis generates is input to combustion chamber 5 and burnt by entrance, heat source needed for providing pyrolysis for pyrolysis oven.Combustion chamber 5
Exhanst gas outlet be connected by pipeline with pyrolysis oven, pyrolysis gas is input to combustion chamber after mixing with air and carries out burning life
High warm flue gas is produced, 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 system is the system continued working, pyrolysis oven is constantly pyrolyzed, continuous to produce
Raw 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 carry out harmless processing after discharge again, therefore cost is higher, and is also unfavorable for the recycling of the energy.If it is logical
Extra high-temperature flue gas is discharged after crossing burning, equally exists great energy waste, the release of same a large amount of high-temperature flue gas is also deposited
In great security risk.Therefore waste heat recycling subsystem is introduced, all pyrolysis gas that pyrolysis generates all are sent to burning
It burns in room, 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, it is real
Now to the maximization of 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.
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 system+waste heat recycling subsystem application system block diagram, and pyrolysis system+waste heat recycles subsystem, main
It to include combustion chamber 5, burner 3, pyrolysis oven 6, the feeding device that pyrolysis oven inlet is set, the dress that removes slag that tail portion is set
It sets and exhaust fan 4-1.The pyrolysis gas outlet of pyrolysis oven 6 is connected to the entrance of combustion chamber 5 by pipeline, the heat that pyrolysis is generated
It vents one's spleen and 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 passes through pipeline
It is divided into two, a pipeline is connected with pyrolysis oven, another pipeline and connects waste heat boiler, is designed with electrically-controlled valve on two pipelines
Door.The flow for the high-temperature flue gas that master control system enters pyrolysis oven by control electric control valve control controls pyrolysis oven holding to realize
In the range of presetting.When the flow required for the pyrolysis gas that combustion chamber generates is more than pyrolysis oven, waste heat boiler is controlled
The electric control valve control section high-temperature flue gas of access is discharged into recycling of the waste heat boiler realization to extra flue gas.
Embodiment 2:
Fig. 2 is pyrolysis system+filter subsystem+oil recycling subsystem application system block diagram, pyrolysis system+oil recycling
System, when containing the tar such as a large amount of tar in pyrolysis gas, if completely burned substantially exceeds the required energy of pyrolysis itself,
It is therefore desirable to increase oil recovery apparatus to carry out all or part of recycling to the tar in pyrolysis gas, the burning of pyrolysis gas is reduced
Value, while a kind of byproduct can also be increased, there is biggish economic value.Increase an oil recycling subsystem on pyrolysis system
System, 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, pyrolysis
The pyrolysis gas outlet of furnace is connected by pipeline with the side air intake of the bottom of the first oil condenser 12, and centre is equipped with electrically-controlled valve
Door, pyrolysis gas enter the first oil condenser 12 from the side air intake, and the ejection port at the top of the first oil condenser 12 is closed, institute
The opposite side for stating the side air intake of the bottom of the first oil condenser 12 is equipped with side gas outlet, and side outlet open height setting enters higher than side
The bottom end of port, the first oil condenser 12 is equipped with oil outlet.The side gas outlet of first oil condenser 12 connects the second oil condenser 13
Side air intake, the ejection port of the second oil condenser 13 connects combustion chamber, the pyrolysis gas for removing tar is input in combustion chamber 5
It burns.The bottom end of second oil condenser is equipped with oil outlet, the bottom end of the first oil condenser 12 and the second oil condenser 13
Oil outlet is connected to water sealed tank 18, is sealed by water sealed tank and oil precipitates, while also realizing the cleaning to tar, water seal
The bottom of slot 18 is equipped with oil outlet, the tar of output is output to condensate tank(trap) 19 by pipeline, the condensate tank(trap) 19 passes through circulation
Water is cooled down, and tar after cooling sends back to the solvent shower nozzle entrance of the first oil condenser 12, root by pressure oil pump part
It is easier the principle to mix according to identical liquid, the part tar of recycling is helped as the spray lime set of the first oil condenser 12
Dissolve the tar in the first oil condenser 12 in pyrolysis gas.Tar in the first oil condenser 12 in pyrolysis gas encounter it is identical at
The tar spray lime set divided is fallen on the bottom of the first condenser under continuous absorption condensation, the bottom by the first condenser is fuel-displaced
Mouth discharge.In order to promote the tar in further removal pyrolysis gas, the second oil condenser 13, which receives, passes through the 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, after cooling
Tar in pyrolysis gas be easier to condense and under fall on the bottom of the second oil condenser, the bottom by the second oil condenser is fuel-displaced
Mouth discharge.Condensate tank(trap) 19 and water cooling heat exchanger 14-1 use water-cooling pattern, are designed with the circulation that water circulating pump keeps cooling water
Circulation is additionally provided with outer loop water cooler and constantly carries out cooling treatment to the cooling water of circulation.Due to the high warm of pyrolysis oven
It vents one's spleen and is directly inputted to oil condenser, therefore be more suited to the less application of dust content in pyrolysis gas.
Embodiment 3:
Pyrolysis system+filter subsystem+oil recycles subsystem, increases filter subsystem compared to embodiment 2, reason exists
Contain a large amount of dust in the pyrolysis gas that partial waste is generated by pyrolysis, if the pyrolysis gas containing a large amount of dust is direct
Carry out oily condensing recovery then may after oil in may also contain a large amount of dust, the equipment for having pyrolysis gas to pass through and pipeline are all
A large amount of dust may be accumulated, the failure and security risk of the blocking of pipeline are caused.It is therefore desirable to increase this kind of application
The pyrolysis gas outlet of pyrolysis oven is increased a pipeline to filter by filter operation, and increase filter subsystem, filter
Outlet connect the first oil condenser 12 top ejection port, filtered pyrolysis gas from this head into port into first oil it is cold
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 powder in pyrolysis gas
Dirt then opens the electric control valve between filter, pyrolysis gas is first input into filter and is dusted operation, then by dedusting
Pyrolysis apparatus afterwards is input to the first oil condenser and starts oil recovery operations；When in pyrolysis gas do not contain dust when, then between open
With the electric control valve between the first oil condenser 12, pyrolysis gas is directly inputted to the first oil condenser and starts oil recovery operations.
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 system+waste heat recycling subsystem+filter subsystem+oil recycles subsystem, the pyrolysis gas generated for pyrolysis
Product is not suitable for storage or long range is transported in other equipment, can not also be directly discharged in atmosphere if there is extra
It goes, therefore is typically all that the pyrolysis gas that all pyrolysis generate all is sent into combustion chamber to burn, carrying out nothing after burning
Evilization handles heel row to atmosphere.Most common application mode is that the pyrolysis gas that pyrolysis generates is sent into combustion chambers burn in pyrolysis system
High-temperature flue gas is generated, high-temperature flue gas is for being pyrolyzed stove heating.But the heat that pyrolysis gas completely burned generates generally all will not be rigid
It is good identical as heat needed for pyrolysis oven, other fuel gas aftercombustions are required supplementation with for insufficient；In most cases
It is that the heat that pyrolysis gas completely burned generates is greater than heat required for pyrolysis oven, past practice is by 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, carries in such high-temperature flue gas
High temperature heat you can't get effective uses, in order to solve this problem exhanst gas outlet increase a bypass, by part cigarette
Gas is introduced into waste heat boiler 10, which is equipped with electric control valve.Monitor pyrolysis oven temperature, when pyrolysis furnace temperature reach or
When more than pre-set value, control electric control valve draws part high-temperature flue gas to waste heat boiler 10, otherwise controls electric control valve and closes
High-temperature flue gas is closed to the direct access of waste heat boiler 10.Extra high-temperature flue gas is sent into gas cleaning after waste heat boiler cools down
Device is discharged into atmosphere after carrying out harmless treatment.
Embodiment 5:
Pyrolysis system+pre- thermal sub-system+oil recycling subsystem+waste heat recycles subsystem, in the base of embodiment 1,2,3 or 4
Increase pre- thermal sub-system on plinth, Fig. 4 is pyrolysis system+pre- thermal sub-system application system block diagram, and Fig. 5 is pyrolysis system+filtering
Subsystem+waste heat recycles subsystem+pre- thermal sub-system application system block diagram；High-temperature flue gas is input to pyrolysis oven and mentions to pyrolysis oven
Heating load is 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 directly arranged after being purified by fume cleaning device
Into atmosphere.In order to further make full use of the high-temperature gas, proposes and increase pre- thermal sub-system, mainly include air preheat
Device, the air preheater include two independent air ducts, are directly isolated by heat exchanger components, and a channel connects air,
Another channel connects high-temperature tail gas, and high-temperature tail gas constantly heats the air in another channel, while realizing 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 exhaust fan,
Air outlet connects fume cleaning device, and the flue gas after cooling is discharged into atmosphere after flue gas purification device carries out harmless treatment
In.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
To the outlet of combustion chamber, mixing with high-temperature flue gas realizes adjustment input by adjusting the uninterrupted of the flue gas after cooling
Uninterrupted to the purpose of the high-temperature flue gas of pyrolysis oven, the flue gas after adjustment cooling is equipped with electricity by adjusting the pipe path
Control 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 system+filter subsystem；Waste heat
Recycle subsystem, oil recycling subsystem and pre- thermal sub-system
Pyrolysis system+filter subsystem, pyrolysis system+waste heat recycling subsystem, pyrolysis system+oil recycle subsystem, heat
Solution system+pre- thermal sub-system, pyrolysis system+filter subsystem+waste heat recycle subsystem, and pyrolysis system+filter subsystem+oil returns
It receives subsystem, pyrolysis system+filter subsystem+pre- thermal sub-system, pyrolysis system+filter subsystem+waste heat and recycles subsystem+oil
Recycling subsystem, pyrolysis system+filter subsystem+waste heat recycling subsystem+pre- thermal sub-system, pyrolysis system+filter subsystem+
Waste heat recycles subsystem+oil recycling subsystem+pre- thermal sub-system, pyrolysis system+oil recycle subsystem+tar utilize subsystem,
Pyrolysis system+filter subsystem+oil recycling subsystem+tar is recycled using subsystem, pyrolysis system+filter subsystem+waste heat
Subsystem+oil recycling subsystem+tar is recycled using subsystem, pyrolysis system+filter subsystem+waste heat recycling subsystem+oil
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 system+filter subsystem+waste heat recycling subsystem+oil recycling subsystem+pre- thermal sub-system+tar utilizes subsystem.One
The connection type of the system under lower detailed description: 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 (5)
1. a kind of system that pyrolysis gas and oil recycles, it is characterised in that including pyrolysis system and oil recycling subsystem, the heat
Solution includes combustion chamber (5), burner (3) and pyrolysis oven (6), and the oil recycling subsystem includes the first oil condenser (12) and the
The pyrolysis gas outlet of two oil condensers (13), the pyrolysis oven (6) first connects the bottom that electric control valve is followed by the first oil condenser (12)
The side air intake in portion, the opposite side of the side air intake of the bottom of the first oil condenser (12) are equipped with side gas outlet, and the side gas outlet is high
Degree setting is higher than side air intake, and the bottom end of the first oil condenser (12) is equipped with oil outlet；The side outlet of first oil condenser (12)
Mouth connects the side air intake of the second oil condenser (13), and oily condensing heat exchanger (14-1), condensation are equipped in the second oil condenser (13)
Top of the pyrolysis gas outlet setting afterwards in the second oil condenser (13)；First oil condenser (12) is equipped with solvent shower nozzle, spray
Defocus oil solvent.
2. the system that pyrolysis gas and oil according to claim 1 recycles, it is characterised in that further include condensate tank(trap) (19), water
The bottom oil outlet of sealing groove (18) and pressure oil pump (20), first oil condenser (12) and the second oil condenser (13) all with
The oil discharge outlet of water sealed tank (18), the bottom of water sealed tank (18) connects condensate tank(trap) (19) by pipeline, and the outlet of the condensate tank(trap) first connects
Pressure oil pump (20) is connected after being followed by electric control valve with the solvent shower nozzle entrance of the first oil condenser (12).
3. the system that pyrolysis gas and oil according to claim 1 or 2 recycles, it is characterised in that further include high-temperature filter
(11), the pyrolysis gas outlet of the pyrolysis oven (6) increases an access, first connects electric control valve and is followed by entering for high-temperature filter (11)
Mouthful, the outlet of the high-temperature filter (11) connects the gas outlet that the first oil condenser (12) top is accessed after electric control valve.
4. it is according to claim 3 pyrolysis gas and oil recycle system, it is characterised in that further include smelting furnace (24) or
Condensate drum (22), the outlet of pressure oil pump (20) increase a pipeline and first connect the smelting that an electric control valve connects smelting furnace (24) again
It furnace burner (23) and/or first connects an electric control valve and connects condensate drum (22) again.
5. the system that pyrolysis gas and oil according to claim 4 recycles, it is characterised in that further include water recirculator
(16), oily condensing heat exchanger (14-1) and condensate tank(trap) heat exchanger (14-2) are all connected by water lines and water recirculator (16)
Together, and it is equipped with water circulating pump.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108913173A (en) * | 2018-09-11 | 2018-11-30 | 广东天源环境科技有限公司 | A kind of method and system that pyrolysis gas and oil recycles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913173A (en) * | 2018-09-11 | 2018-11-30 | 广东天源环境科技有限公司 | A kind of method and system that pyrolysis gas and oil recycles |
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