CN110280075A - A kind of asphalt reclamation material heating equipment and heat energy utilization method - Google Patents

A kind of asphalt reclamation material heating equipment and heat energy utilization method Download PDF

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Publication number
CN110280075A
CN110280075A CN201910099319.7A CN201910099319A CN110280075A CN 110280075 A CN110280075 A CN 110280075A CN 201910099319 A CN201910099319 A CN 201910099319A CN 110280075 A CN110280075 A CN 110280075A
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CN
China
Prior art keywords
heating roller
hot air
air generator
smoke box
roller
Prior art date
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Granted
Application number
CN201910099319.7A
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Chinese (zh)
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CN110280075B (en
Inventor
陈清信
朱钊
付国亮
高建东
赵尧
王荣群
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Henan Yalong Intelligent Equipment Co ltd
Original Assignee
NANYANG YALONG ROAD CONSTRUCTION MACHINERY CO Ltd
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Priority to CN201910099319.7A priority Critical patent/CN110280075B/en
Publication of CN110280075A publication Critical patent/CN110280075A/en
Application granted granted Critical
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023Pockets filters, i.e. multiple bag filters mounted on a common frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04Cleaning filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/30Particle separators, e.g. dust precipitators, using loose filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/4218Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/48Removing dust other than cleaning filters, e.g. by using collecting trays

Abstract

The invention discloses a kind of asphalt reclamation material heating equipments, including collection smoke box, heating roller and hot air generator, the collection smoke box side wall is connected to heating roller, and feeding assembly is equipped with inside the collection smoke box, described feeding assembly one end is stretched out at the top of collection smoke box, and the other end protrudes into heating roller feed end by collecting smoke box side wall;The heating roller is arranged in a rack, so that heating roller is kept rotation status at work by the driving device that rack is equipped with;Ash fall room is also connected with by induced duct at the top of the collection smoke box, ash fall room side wall is connected with air-introduced machine and hot air generator in turn by induced duct.Compared with prior art, mutually indepedent using hot air generator and heating roller, reclaimed materials does not pass through the direct radiation of flame, prevents ageing of asphalt;It is flashed back simultaneously using circulation of tail gas and the method for heat radiation heating conduction oil can farthest utilize thermal energy, to reach energy-saving and environment-friendly purpose.

Description

A kind of asphalt reclamation material heating equipment and heat energy utilization method
Technical field
The present invention relates to asphalt reclamation material regenerative use technology fields, and in particular to a kind of asphalt reclamation material heating equipment and Heat energy utilization method.
Background technique
Reworked material mainly is heated using regeneration roller in existing pitch thermal regeneration device, due to the heating of asphalt reclamation material Method regenerates the limitation of the factors such as the structure of roller, and regeneration adding proportion is all relatively low at present, ageing of asphalt in hot recycling, heat The blue smoke processing problem generated in low efficiency and asphalt-regenerating material heating process is still more prominent, and especially the thermal efficiency is low, This is the problem of other most of producers all suffer from.
The structure of the current hot recycling of most of producers or concurrent heating, is divided into two types in the structure of concurrent heating Type: one is the structures of combuster, and the open fire of burner is converted into hot gas by combustion chamber and is heated to reworked material;It is another It kind is that burner is directly connected with regeneration roller and heats to reworked material.And in the reverse-flow regeneration roller of other producers It is identical with the downflow type regeneration combustion chamber of roller plus a chamber structure in roller end in structure, only combustion It burns room and has moved on to the other end from one end.The structure of combustion chamber is all very simple in these types of structure, only one it is straight-cylindrical Structure, the thermal efficiency is all very low, and heating effect is general, therefore is further improved.
Summary of the invention
In order to overcome the shortcomings in the prior art, the object of the present invention is to provide a kind of asphalt reclamation material heating equipment, structures Rationally, system thermal efficiency is high, can effectively improve hot recycling production capacity and hot recycling adding proportion.
It is a further object of the present invention to provide a kind of heat energy utilization methods of asphalt reclamation material heating equipment.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of asphalt reclamation material heating equipment, including collection cigarette Case, heating roller and hot air generator, the collection smoke box side wall are connected to heating roller, and charging is equipped with inside the collection smoke box Component, described feeding assembly one end are stretched out at the top of collection smoke box, and the other end protrudes into heating roller feed end by collecting smoke box side wall;Institute It states heating roller to be arranged in a rack, so that heating roller is kept contorted at work by the driving device that rack is equipped with State;Ash fall room is also connected with by induced duct at the top of the collection smoke box, ash fall room side wall pass through induced duct according to It is secondary to be connected with air-introduced machine and hot air generator;Inner combustion chamber, the inner combustion chamber and hot gas are equipped with inside the hot air generator Exterior combustion chamber is formed between generator inner wall, the hot gas burner internal further respectively has reversing mechanism and thermally conductive oil circulating pipe Road, described inner combustion chamber one end connect to burner, hot air generator top exit and the discharge component for heating roller is externally connected with It connects.
Further, the hot air generator, by burner operation, makes hot air generator independently of heating roller setting The high temperature hot gas of generation is imported in heating roller by an induced duct.
The heating roller and horizontal plane tilt 3 degree and arrange in height, and high portion is feed end, and lower curtate is discharge end.
The flue gas emission mouth with ash fall room is additionally provided at the top of the collection smoke box, bottom is equipped with ash discharging hole.
Ash fall room bottom is exported equipped with solid particle, and one end is additionally provided with dust outlet, the dust outlet with remove Dirt system connectivity.
The thermally conductive oil circuit piping is twist arranged in the outer layer of inner combustion chamber.
The present invention at work, starts burner, and the thermal-flame of sending is converted into high temperature gas flow in inner combustion chamber, leads to It crosses induced duct to enter in heating roller, be fed intake at this time by feeding assembly, heating rolling is entered by the end of feeding assembly In cylinder, the driving device driving heating roller rotation keeps the intracorporal material of cylinder mobile from feed end to discharge end, heats roller In high temperature gas flow the material in heating roller is heated after, the tail gas of generation is heavy by sequentially entering collection smoke box, dust Room and hot air generator drop, wherein the ash discharging hole of collection smoke box bottom, exhausts larger particles in tail gas, remaining enters ash fall Room, larger particles export discharge outside again by solid particle, and dust is handled by connecting dust pelletizing system, remaining tail Gas is entered in hot air generator by air-introduced machine, by commutation behind the thermal-flame arrival hot air generator end in inner combustion chamber Mechanism is redirected back into exterior combustion chamber, and harmful component in tail gas, which enters after exterior combustion chamber is contacted with thermal-flame, to be burned off, tail gas It is heated again during advance by the heat radiation of inner combustion chamber, a portion heat is radiated to outermost layer, a part of quilt The conducting oil circulation apparatus for being wrapped in inner combustion chamber's outer layer, which is absorbed and taken away, guides other parts into, also functions to stable heat preservation and makees With, and most thermal energy by induced duct enter heating roller in asphalt-regenerating material is heated.
The present invention is produced in hot air generator with burner by the tail gas of heating roller discharge with spiral progressive manner Raw hot gas is mixed, to generate 650 degree or so of high temperature gas flow, then led by pipeline heat in roller to Reclaimed materials is heated, while spiral heat conducting oil pipe is fitted on the outer wall of hot air generator inner cylinder, is followed in pipeline The conduction oil of ring can largely absorb thermal energy of the hot air generator to external radiation, in addition fill between heat conducting oil pipe and outer heat insulation layer There is certain thickness heat preservation rock to be substantially reduced scattering and disappearing for thermal energy, the conduction oil being heated can guide other to equipment again Position carries out lasting heat preservation to critical component.
There is no the ends that roller is arranged in as other producers for hot air generator after feeding assembly feeds intake in the present invention Portion is connected directly with roller, while hot air generator is worked in a manner of fixed, an only high temperature resistant between them Induced duct be connected, complete absolute construction can make respective component give full play of respective efficiency.
Air inducing pipeline in the present invention is connected to hot air generator is sent into tail gas in hot air generator, in hot air generator Temperature at 650 degree or more, tail gas needs to stop the regular hour in this hot environment (>=1 second), gas hot gas send out In raw device by the way of spirally recycling, residence time > 1 second, therefore creatively solve and can be provided to reworked material Heat source, and discharge can be reduced to minimum.
A kind of heat energy utilization method of asphalt-regenerating material heating equipment, it is characterised in that the following steps are included:
1) asphalt reclamation material enters in heating roller by feeding assembly;
2) driving device driving heating roller rotation, will by the rotation of heating roller into the asphalt reclamation material in heating roller Asphalt reclamation material is promoted to being fallen after certain altitude again, and it is mobile to direction of discharge to form material curtain, in this process sufficiently with The high temperature gas flow of hot air generator carries out heat exchange;
3) hot gas that burner generates is entered in heating roller by hot air generator, is come into full contact with asphalt reclamation material, Even heated, the hot wind of gas device occurs for hot gas by entering roller and the relative motion of bitumen recovery stream after pipeline and contacting;
4) flue gas generated in heating roller is introduced in ash fall room by collection smoke box, is filtered to solid particle preliminary sedimentation Afterwards, hot air generator is introduced by air-introduced machine, these flue gases are produced in hot air generator with burner with spiral progressive manner After raw high temperature gas flow is sufficiently mixed, it is again introduced into regeneration roller and material is heated, meet the effective use of thermal energy.
Compared with prior art, internal structure is complicated for burner in the present invention, inside there is two layers of heat-exchanging chamber, first layer master The space of full combustion is provided for burner, the high temperature hot gas after full combustion is inside generator using spiral circulation Mode push ahead, be redirected back into exterior combustion chamber after high temperature gas flow reaches end by reversing mechanism, while air-introduced machine The roller tail gas of introducing also starts to contact and mix with high temperature gas flow here, the heat exchange especially in exterior combustion chamber, no Only inner combustion chamber reduces operating temperature, while its heat radiation is that recycle oil in heat conducting oil pipe in insulating layer mentions again A reliable and stable heat source is supplied.
Hot air generator in the present invention is not and the prior art is equally arranged in the end for heating roller and roller is straight Connect connected, while hot air generator is worked in a manner of fixed, an only air inducing pipeline resistant to high temperature between them It is connected, has no special connection therebetween, brought great convenience to the maintenance and maintenance in later period, in addition complete independent knot Structure can make respective component give full play of respective efficiency.
The present invention is mutually indepedent using hot air generator and heating roller, and reclaimed materials does not pass through the direct radiation of flame, Prevent ageing of asphalt;It is flashed back simultaneously using circulation of tail gas and the method for heat radiation heating conduction oil can be utilized farthest Thermal energy, to reach energy-saving and environment-friendly purpose.
Compared with prior art, the present invention is different from the arrangement form that previous high-temperature flue gas mixing chamber and roller integrate, and adopts Independent with high-temperature flue gas mixing chamber and cylinder, reworked material does not have Fire Radiation, and the ageing of asphalt situation of aggregate surface can be complete It avoids entirely;It using circulation of tail gas, recycles high-temperature tail gas and indirect heating is carried out to reworked material, while again can be to following using heat radiation Conduction oil in endless tube road is heated, this partial heat energy is recycled to carry out continually and steadily other positions in regeneration link Heat preservation, to greatly improve the thermal efficiency, and the dry blue smoke generated can be burned device burning, further increase pitch heat again Production can increase the adding proportion of regeneration reclaimed materials, reduce discharge and environmental pollution, achieve the purpose that protect environment.
Detailed description of the invention
With reference to the accompanying drawings and embodiments, structure and features of the invention is further described.
Fig. 1 is the structural diagram of the present invention.
In attached drawing 1,1. collection smoke boxes, 2. induced ducts, 3. hot air generators, 4. burners, 5. high temperature resistant induced ducts, 6. machines Frame, 7. gas flows, 8. conduction oils flow direction, 9. asphalt-regenerating materials flow direction, 10. dusts flow direction, 11. feeding assemblies, 12. burn outside Room, 21. ash fall rooms, 23. air-introduced machines, 31. reversing mechanisms, 32. thermally conductive oil circuit pipings, 33. insulating layers, 34. interior burnings Room, 35. sealants, 61. discharge components, 62. heating rollers, 63. driving devices.
Specific embodiment
It is a kind of embodiment of the invention referring to attached drawing 1, discloses a kind of asphalt reclamation material heating equipment and its thermal energy benefit Roller is heated with method, including a kind of asphalt reclamation material, including rack 6 and the heating roller 62 being set in rack, charging group Part 11, discharge component 61, driving device 63, burner 4, hot air generator 3, induced duct 2, ash fall room 21, air-introduced machine 23, Thermally conductive oil circuit piping 32, insulating layer 33, wind direction change course device 31, outer layer sealing 35;
Heating roller 62 being set in rack 64 horizontal plane inclination for 3 degree in what height was arranged, high-end to collect smoke box 1, interior Feeding assembly 11 is set, low side is discharge component 61;
Feeding assembly 11 is fixed on inside collection smoke box 1, and is stretched out outside collection smoke box 1 and be equipped with feeding port, is equipped at the top of collection smoke box 1 Flue gas emission mouth is connect by induced duct 2 with ash fall room, and bottom is equipped with ash discharging hole;
The driving heating roller 62 of driving device 63, which rotates, keeps the material in roller 12 mobile from feed end to discharge end;
3 one air outlets of hot air generator are connect with high temperature resistant induced duct 5 out, another air port is connected by induced duct and air-introduced machine It connects, 3 end of hot air generator is connected with burner 4, heats and passes through high temperature resistant air inducing pipeline 5 between roller 62 and hot air generator It is connected, hot air generator 3 and roller 62 are not arranged on same central axes but installed in other position, and are to fix not Dynamic;
Heat exchange section inside hot air generator 3 includes inner combustion chamber 34, reversing mechanism 31, thermally conductive oil circuit piping 32, protects Warm layer 33 and sealant 35, burner 4, the thermal-flame of burner is converted into height in inner combustion chamber 34 when normal work Warm air, after this high temperature gas flow is mixed in end with the heating roller tail gas that air-introduced machine 23 introduces, by the harmful constituent in tail gas Enter exterior combustion chamber 12 after burn-up, tail gas is heated by the heat radiation of inner combustion chamber 34 again again during advance, wherein one Partial heat is radiated to outermost layer, this part infrared radiant energy is wrapped in the conduction oil etc. in the thermally conductive oil circuit piping of outer layer again It absorbs, guides other key components after absorption into and carry out stable heat preservation to it, and most of thermal energy passes through high temperature resistant induced duct 5 It is introduced into heating roller 62 and asphalt-regenerating material is heated;
Tail gas in roller is first collected by collection smoke box 1 and bulky grain ash fall is discharged to lower part, remaining tail gas is by drawing Air hose enters later again after the ash fall of larger particles in ash fall room 21, and the hot gas of opposite purification is fed to It flashes back in hot air generator 3.
Comprising the utilization method to thermal energy in above-described embodiment, asphalt reclamation material first enters heating rolling by feeding assembly In cylinder;Secondly driving device driving heating roller rotation, into the asphalt reclamation material in heating roller by the rotation of heating roller Turn to fall again after promoting asphalt reclamation material to certain altitude, forms material curtain to direction of discharge movement, fill in this process Divide and carries out heat exchange with the high temperature gas flow of hot air generator;Furthermore the hot gas for generating burner is entered by hot air generator and is added In hot roller, come into full contact with asphalt reclamation material, thermally equivalent, hot gas occur the hot wind of gas device by enter after pipeline roller with The relative motion of bitumen recovery stream simultaneously contacts;The flue gas generated in final 4th heating roller introduces ash fall by collection smoke box Interior introduces hot air generator, these flue gases side progressive with spiral by air-introduced machine after the filtering of solid particle preliminary sedimentation After the high temperature gas flow that formula generates in hot air generator with burner is sufficiently mixed, it is again introduced into regeneration roller and material is carried out Heating, meets the effective use of thermal energy.
It above are only several specific embodiments of the invention, but the design concept of the present invention is not limited to this, all benefits It is made a non-material change to the present invention, should all be belonged to behavior that violates the scope of protection of the present invention with this design.

Claims (10)

1. a kind of asphalt reclamation material heating equipment, including collection smoke box, heating roller and hot air generator, it is characterised in that: described Collection smoke box side wall is connected to heating roller, and feeding assembly is equipped with inside the collection smoke box, and collection is stretched out in described feeding assembly one end At the top of smoke box, the other end protrudes into heating roller feed end by collecting smoke box side wall;The heating roller is arranged in a rack, leads to Crossing the driving device that rack is equipped with makes heating roller keep rotation status at work;Also pass through air inducing at the top of the collection smoke box Pipe is connected with ash fall room, and ash fall room side wall is connected with air-introduced machine and hot air generator in turn by induced duct; It is equipped with inner combustion chamber inside the hot air generator, forms exterior combustion chamber between the inner combustion chamber and hot air generator inner wall, The hot gas burner internal further respectively has reversing mechanism and thermally conductive oil circuit piping, and described inner combustion chamber one end connects outward There is burner, hot air generator top exit is connect with the discharge component of heating roller.
2. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: further, the hot gas occurs Device is independently of heating roller setting, and by burner operation, the high temperature hot gas for generating hot air generator is led by an induced duct Enter to heat in roller.
3. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: the heating roller inclines with horizontal plane Oblique 3 degree are arranged in height, and high portion is feed end, and lower curtate is discharge end.
4. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: be additionally provided at the top of the collection smoke box with The flue gas emission mouth of ash fall room, bottom are equipped with ash discharging hole.
5. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: the feeding assembly bottom is additionally provided with Flue gas emission mouth is led in one outlet.
6. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: ash fall room bottom is equipped with Solid particle outlet, one end are additionally provided with dust outlet, which is connected to dust pelletizing system.
7. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: the thermally conductive oil circuit piping is in spiral shell Rotation shape is arranged in the outer layer of inner combustion chamber.
8. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: the hot gas burner outer wall is equipped with Sealant is additionally provided with insulating layer outside the sealant.
9. asphalt reclamation material heating equipment according to claim 1, it is characterised in that: the hot air generator is resistance to by one High temperature induced duct is connect with heating roller.
10. a kind of heat energy utilization method of asphalt reclamation material heating equipment according to claim 2 ~ 10, it is characterised in that The following steps are included:
1) asphalt reclamation material enters in heating roller by feeding assembly;
2) driving device driving heating roller rotation, will by the rotation of heating roller into the asphalt reclamation material in heating roller Asphalt reclamation material is promoted to being fallen after certain altitude again, and it is mobile to direction of discharge to form material curtain, in this process sufficiently with The high temperature gas flow of hot air generator carries out heat exchange;
3) hot gas that burner generates is entered in heating roller by hot air generator, is come into full contact with asphalt reclamation material, Even heated, the hot wind of gas device occurs for hot gas by entering roller and the relative motion of bitumen recovery stream after pipeline and contacting;
4) flue gas generated in heating roller is introduced in ash fall room by collection smoke box, is filtered to solid particle preliminary sedimentation Afterwards, hot air generator is introduced by air-introduced machine, these flue gases are produced in hot air generator with burner with spiral progressive manner After raw high temperature gas flow is sufficiently mixed, it is again introduced into regeneration roller and material is heated, meet the effective use of thermal energy.
CN201910099319.7A 2019-01-31 2019-01-31 Asphalt reclaimed material heating equipment and heat energy utilization method Active CN110280075B (en)

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CN110280075B CN110280075B (en) 2023-09-15

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Cited By (2)

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CN113663419A (en) * 2021-09-08 2021-11-19 四川金汇能新材料股份有限公司 Tail gas treatment equipment
WO2023044843A1 (en) * 2021-09-23 2023-03-30 湖北富邦科技股份有限公司 Efficient and rapid drying machine for granulated fertilizer and drying method

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