CN203373642U - Snakelike multiple-roller continuous heating device for recycled asphalt mixture - Google Patents
Snakelike multiple-roller continuous heating device for recycled asphalt mixture Download PDFInfo
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- CN203373642U CN203373642U CN201320463682.0U CN201320463682U CN203373642U CN 203373642 U CN203373642 U CN 203373642U CN 201320463682 U CN201320463682 U CN 201320463682U CN 203373642 U CN203373642 U CN 203373642U
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Abstract
The utility model provides a snakelike multiple-roller continuous heating device for a recycled asphalt mixture. The snakelike multiple-roller continuous heating device comprises a support rack, a first heating roller, a second heating roller and a third heating roller, wherein a first transition transfer tank is arranged between the first heating roller and the second heating roller, a second transition transfer tank is arranged between the second heating roller and the third heating roller, the first heating roller, the first transition transfer tank, the second heating roller, the second transition transfer tank and the third heating roller are butt jointed from top to bottom, the three heating rollers are all installed slantly and are arranged in an S shape, each heating roller is supported on an idler wheel bracket which is fixed on the support rack, each transition transfer tank is fixed on the support rack through a connecting rack, the feed end of the first heating roller is provided with an induced air port and a feed port, and the tail end of the third heating roller is provided with a discharge port and is connected with a hot air blower. According to the snakelike multiple-roller continuous heating device, the problem that the recycled asphalt mixture are caked due to stickness is solved, the heat transfer effect is improved, the installation area is reduced, and the snakelike multiple-roller continuous heating device is convenient to transport.
Description
Technical field
The utility model relates to the device that the waste asphalt mixture produced after a kind of road pavement milling heats recycling, belongs to the asphalt regenerative technical field of heating.
Background technology
All can produce a large amount of waste asphalt mixtures in the road revision, contain aged asphalt, rubble and sand in waste asphalt mixture, after Recycling Old Asphalt Mixture, value is still higher.Along with the reinforcement of people to environmental protection and utilization of resources consciousness, national governments, to the discharge of the solid waste restriction of being made laws, can not or discard by random stacking as the waste asphalt mixture of solid waste.Therefore, the flexible pavement Recycle Technique heat subject that become international, to the recycling of old asphalt, can reach economize on resources, environmental contamination reduction public hazards, the purpose of community economy benefit of strengthening.The flexible pavement Recycle Technique, be by old asphalt pavement through digging, reclaim, after broken, screening, with regenerative agent, new bituminous material, newly gather materials etc. and again to stir into by a certain percentage compound, enable to meet certain pavement performance and by its a set of technology of surfacing again.
The flexible pavement Recycle Technique mainly divides four classes, that is: the cold regeneration of hot in-plant reclaimed, plantmix, on-site heat regeneration and Spot Cooling regeneration.Plant-mix heat recycle technology, first will after the milling of old asphalt concrete pavement material, to transport factory back, by broken, screening (in case of necessity), and according to indexs such as old material Asphalt Content, ageing of asphalt degree, macadam gradatings, mixing newly the gathering materials of some, pitch and regenerative agent (in case of necessity) is mixed and stirred, make compound reach the indices of regulation and stipulation, according to the identical method of newly-built asphalt concrete pavement surfacing again.Plant-mix heat recycle technology, it is most widely used general and the most ripe regeneration techniques, the reclaimed asphalt mixture road surface can reach and keep the desired every pavement performance index of flexible pavement to be not less than the flexible pavement technical standard of whole use new materials, and there is better anti-rut performance, meet the functional performance requirement of asphalt pavement of highway.This regeneration belongs to structural regeneration, can be effectively used to the regeneration of old asphalt concrete pavement under various conditions.The regenerative use technology of flexible pavement, can save the raw material such as a large amount of pitch, sandstone, and cost saving is conducive to process waste material, protection of the environment simultaneously, thereby have significant economic benefit and social, environmental benefit.
In the reclaimed asphalt mixture use procedure, the quality in " regeneration " process that guarantees reclaimed asphalt mixture, in addition satisfied " in batches " be " regeneration " continuously.Said " in batches " is exactly to require, in the unit interval, enough production capacities to be arranged, if production capacity is too little, the reclaimed asphalt mixture utilization rate is just low.Simultaneously, consider in addition reclaimed asphalt mixture " regeneration " process Energy Consumption Cost, if power consumption is too high, regeneration cost just increases, and has just reduced the use value of reclaimed asphalt mixture.
Reclaimed asphalt mixture heating process roughly is divided into three kinds of states, that is: A. is when temperature lower (temperature≤70 ℃), and while not reaching asphalt softening point, reclaimed asphalt mixture still keeps original separate state, good fluidity; B. when temperature is higher (>=120 ℃, pitch melts fully, pitch breaks away from from stone, the no longer glutinous group that connects of reclaimed asphalt mixture, its mobility still can; C. when temperature (70 ~ 120 ℃) during state between, pitch, in happy and harmonious state, produces the glutinous group that connects between reclaimed asphalt mixture, the non-constant of its mobility, even produce the filling phenomenon, and, now heating surface area sharply reduces, and heat exchange effect also sharply reduces.Therefore, the glutinous connection of solution clique problem is extremely important.Pitch is mixture, and fixing fusion temperature, so there is no fusing point, do not refer generally to be designated as softening point, and the composition different softening point is also different.The softening point of way of distillation petroleum bitumen is greater than 100 ℃.
Batch asphalt mixing plant is the equipment generally adopted in Process of Pitch Mixture Production, and its formation has: aggregate supply system, drying drum, combustion system, hot aggregate elevator, vibrosieve system, hot aggregate bunker, metering system, agitator, powder supplying system, asphalt feeding system, conduction oil feed system, dust pelletizing system, finished product bin, electrical control system etc.Add " the second Drying " (" asphalt concrete plant-mix heat regenerating mixing plant " on batch asphalt mixing plant, China pitch net http://www.sinoasphalt.com on November 20th, 2007, highroad), can be specifically designed to the old asphalt material of heating, but its output is little, equipment is huge, the waste gas of old pitch (blue smoke) is as directly discharged by deduster, to shorten life-span of the filter bag, and environment is caused to secondary pollution, need the waste gas with the huge processing of combustion method again, the price increased for the attachment device of asphalt-regenerating is high.
At present, drum-type stirring equipment is mainly manifested in the following aspects in the progress of performance and structure: (1) structural significant improvement; Lengthen cylinder to increase the space of heating, increase the mixing time, thereby improve the uniformity of mixing and stirring; Encrypt the quantity of stirring vane, form the material curtain of multilayer spreading.Improve the interchange of heat between aggregate and combustion gas, stoped flame directly to spray to pitch, improved the problem of the aging and blue smoke of pitch; (2) improvement of combustion technology.At first show in the change of flame profile, strengthened air quantity and the blast of Secondary Air simultaneously, introduced the automatic control system of distributive value and Secondary Air; (3) although early stage drum-type stirring equipment adopts free-standing control system can guarantee the steady running of aggregate and asphalt feeding system, but be difficult to reflect the variation of sand material flow randomness, can't control at any time the emitted dose of pitch, be difficult to obtain high-quality compound.
Chinese patent literature CN2876157 disclosed " continuous type drying drum ", CN101498119B disclosed " pitch mixed regeneration drying roller ", all be embodied in the change to flight, but when reclaimed asphalt mixture is heated to while dissolving state, reclaimed asphalt mixture is glutinous to be linked togather, form larger bulk, reduce heating surface area, be unfavorable for the reclaimed asphalt mixture thermally equivalent.CN2233418 disclosed " asphalt mixing plant with many drying roller combinations ", it is the charging apparatus as the sand material center-aisle, its outer end face at least is provided with the interface coordinated with drying roller more than 2, and complete machine at least is equipped with 2 above Combined drying cylinders.Although its structure design also has a plurality of Dryings, its Drying only is used for drying that new building stones are designed, and its oven dry and stirring are independent design, and each Drying is furnished with independently heater, and the pitch needed here is liquid bitumen.CN2555277 disclosed " the continuous mixing equipment of double-deck adverse current bituminous mixture " and document " application of twin-roll continuous mixing equipment in asphalt heat recycling " (Heilungkiang transport science and techonologies, NO.8,2010, total the 198th phase) and " applied analysis of twin-roll continuous mixing equipment in asphalt heat recycling " (Liaoning Province traffic higher junior college journal, the 7th the 3rd phase of volume, in September, 2005, V01-7 NO.3, Sep.2005) all mentioned and adopted double-deck twin-roll in, made dry and mix and stir all and carry out in cylinder.The structure of " twin-roll " of these document indications is the little cylinders of large jacket casing, the curb pins nested structure, and inner core is a rotary body, supporting, rotation and internal construction are similar to the drying drum in batch type equipment, for the heating of cold mineral aggregate.Heated mineral aggregate, the discharging opening of burner one end flows to the inner chamber of urceolus from inner core, mixes with inserts, reclaimed materials, regenerative agent and pitch.When inner cylinder rotating, the paddle oar on inner tank theca is stirred compound to the propelling for the helical movement of cold mineral aggregate reverse movement direction, is uniformly mixed mixing and stirring of material process urceolus long period, and finished product material is discharged from discharge port.The adjustment of twin-roll is mainly to guarantee operating steadily of twin-roll, can be adjusted by bogie wheel, and its driving is to complete by unsteady shape of a saddle chain.In the nineties in last century, a kind of Novel double-drum asphalt mixing plant has appearred, in this equipment, inner core is the complete reverse-flow Drying the same with batch (-type), just at the formatted window of its afterbody, can make gathering materials of super heating fall into urceolus.Reworked material, pitch, powder and various additive be all that the opening of different section enters the inner/outer tube interlayer from urceolus, formed a huge space of mixing and stirring here.A series of blades are installed on the shell of Drying (inner core), and the material that advances people's interlayer becomes the finished product material of uniform mixing and exports from the other end of urceolus after the action of forced stirring of blade.Above-mentioned " twin-roll " if structure " pitch that the charge door of urceolus adds, reclaimed asphalt mixture " reached lay needed temperature and output, be not to increase its axial length, be increased in exactly the running time in cylinder and increase the urceolus volume.
Therefore, a major reason that affects the reclaimed asphalt mixture use is exactly " regeneration cost " problem, if meet the requirement of flexible pavement continuous laying, " regenerative process " of reclaimed asphalt mixture just must be continuously.If realize cyclic regeneration, and reach in batches a certain amount of (for example production 3000kg per minute) drying roller internal diameter and will reach 1000mm, length will approach 10 meters, and equipment volume is large, and floor space is large.And, current reclaimed asphalt mixture laser heating cylinder is not considered material physical parameter under different temperatures, and the physical parameter of some material under different temperatures is widely different, in some dry (or heating) process, adopt identical drying (or heating) technique just to be difficult to meet the demand of differentiation.Existing reclaimed asphalt mixture heater can not solve the glutinous connection problem of compound.
A kind of continuous output of shortage is large at present, floor space is little, can solve the glutinous reclaimed asphalt mixture continuous heating that connects clique problem of compound.
Summary of the invention
The problem that the output that the utility model exists for existing reclaimed asphalt mixture production equipment is little, can not be without interruption, provide that a kind of floor space is little, production efficiency is high, the snakelike multiple-roll continuous heating of reclaimed asphalt mixture of heating good mixing effect.
The snakelike multiple-roll continuous heating of reclaimed asphalt mixture of the present utility model, by the following technical solutions:
This device, comprise bracing frame, the first heated roller, the second heated roller and the 3rd heated roller, be provided with flight on each heated roller inwall, be provided with First Transition between the first heated roller and the second heated roller and shift cabin, be provided with the second transition between the second heated roller and the 3rd heated roller and shift cabin, the first heated roller, First Transition shifts cabin, the second heated roller, cabin is shifted in the second transition and the 3rd heated roller is docking together from top to bottom, each joint arranges rotary connector, three all inclined installations of heated roller, be arranged to S shape, each heated roller all is supported on roller support, roller support is fixed on bracing frame, each transition is shifted cabin and all is fixed on bracing frame, the front end of the first heated roller is provided with air-vent and feeding port, the end of the 3rd heated roller is provided with discharge gate and is connected with unit heater, be provided with crushing mechanism in the second heated roller, this crushing mechanism is line of cut spaced in cylindrical shell.
Rotary connector comprises entrance point, the port of export, turns core and bearing installing plate, turns core and entrance point links together, and bearing installing plate and the port of export link together, turn between core and the port of export and turn core and the bearing installing plate between bearing all is set.During application, entrance point and the port of export link together with the end that cabin is shifted in an end and the transition of heated roller respectively, realize that heated roller shifts being connected of cabin with transition, and heated roller can rotate simultaneously.
The first structure in cabin is shifted in transition, comprises cabin body, inboard drapery panel and outside drapery panel, and body two ends, cabin are respectively supplied materials mouth and discharging opening, are distributed with inboard drapery panel and the outside drapery panel of interlaced arrangement on the inwall of cabin body.The acute angle that the internal face formation of inboard drapery panel and outside drapery panel and cabin body is greater than 60 ℃, the method phase angle of interior drapery panel and the extended line of outer drapery panel is between ± 15 ℃.
The second structure in cabin is shifted in transition, comprises cabin body and transmission mechanism, and body two ends, cabin are respectively supplied materials mouth and discharging opening, in the body of cabin, transmission mechanism are set.
In the second heated roller, the adjacent line of cut of crushing mechanism is 90 degree interlaced arrangement.
The course of work of said apparatus is:
The hot blast that unit heater produces enters the 3rd heated roller, the second heated roller and the first heated roller successively by air-vent, makes to have different temperature in three heated rollers.Reclaimed asphalt mixture enters the first heated roller through feeding port, is uniformly distributed under the flight in the first heated roller stirs and disperses, and when absorbing the Self-air-heating heat, flows downward, and shifts cabin through first transition and enters the second heated roller.By crushing mechanism, the glutinous compound that connects group is cut apart to fragmentation in the heated roller of the second level, and be uniformly distributed and disperse under the stirring of flight in the second heated roller, absorb heat, flow forward, shift cabin by the second transition and enter the 3rd heated roller, under the stirring of compound flight in the 3rd heated roller, be uniformly distributed and disperse, absorb heat and flow forward, flow out through discharging opening, complete whole heating procedure.
The utility model adopts a plurality of heated roller structures, adapts to the different conditions of reclaimed asphalt mixture heating process, has solved glutinous connection clique problem, adapts to the Drying Technology Parameter under the reclaimed asphalt mixture different conditions, has reduced energy consumption, increases heat transfer effect.Delay hot gas flow, be conducive to fully carry out interchange of heat; Reduce erection space, convenient transportation, reduced dismounting and transport difficulty, lowered cost.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is along the sectional view of the first heated roller of A-A line in Fig. 1.
Fig. 3 is the axial section structure chart of the first heated roller.
Fig. 4 is the structural representation of rotary connector in the utility model.
Fig. 5 is the structural representation that cabin is shifted in the high inclination-angle transition.
Fig. 6 is the structural representation that cabin is shifted in the small inclination transition
Fig. 7 is along the cross section structure schematic diagram of the second heated roller of B-B line in Fig. 1.
Fig. 8 is the internal construction schematic diagram of the second heated roller in the utility model.
Wherein: 1, feeding port, 2, roller support, 3, gear drive, the 4, first heated roller, 5, rotary connector, 6, transition transfer bin, the 7, second heated roller, the 8, the 3rd heated roller, 9, discharge gate, 10, fixed support, 11 bracing frames, 12, unit heater, 13, air-introduced machine; 41, the flight of the first heated roller, the cylindrical shell of the 42, first heated roller; 51, entrance point, 52, the port of export, 53, turn core, 54 bearing installing plates, 55, bearing; 61, supplied materials mouth, 62, discharging opening, 63, the cabin body, 64, inboard drapery panel, 65, outside drapery panel, 66, feeding screw; 71, crosscut secant, 72, perpendicular line of cut, the flight of the 73, second heated roller, the cylindrical shell of the 74, second heated roller.
The specific embodiment
As shown in Figure 1, the snakelike multiple-roll continuous heating of reclaimed asphalt mixture of the present utility model mainly comprises bracing frame 11, the first heated roller 4, the second heated roller 7 and the 3rd heated roller 8.Be provided with First Transition between the first heated roller 4 and the second heated roller 7 and shift cabin 6, be provided with the second transition between the second heated roller 7 and the 3rd heated roller 8 and shift cabin 6, cabin 6, the second heated roller 7 are shifted in the first heated roller 4, first transition, cabin is shifted in second transition and the 3rd heated roller 8 is docking together successively, each joint arranges rotary connector 5, so that each heated roller can rotate.Three all inclined installations of heated roller, the first heated roller 4 up, the 3rd heated roller 8 below, form the snakelike layout of S shape, reduced floor space.The axis of each heated roller can be arbitrarily angled layout, and the axial cross section of three heated rollers can be not in one plane.Each heated roller (the first heated roller 4, the second heated roller 7 and the 3rd heated roller 8) is to be supported on two groups of roller supports 2, and roller support 2 is fixed on bracing frame 11.As Fig. 2, roller support 2 comprises rolling ring 21, roller 22, gear wheel 23, base 24 etc., and heated roller rotates by roller supporting.Two transition are shifted cabin 6 and are fixed on bracing frame 11 by a fixed support 10 respectively.The front end of the first heated roller 4 is provided with air-vent and feeding port 1, and air-vent is connected with air-introduced machine 13.The end of the 3rd heated roller 8 is provided with discharge gate 9 and is connected with unit heater 12.Feeding port 1, higher than discharge gate 9, is convenient to material and is moved downwards.The hot blast that unit heater 12 produces enters the 3rd heated roller 8, the second heated roller 7 and the first heated roller 4 successively by the air inducing of air-introduced machine 13, and the temperature in the 3rd heated roller 8, the second heated roller 7 and the first heated roller 4 reduces gradually.The second heated roller.Set of gears transmission mechanism 3 is set on each heated roller, and heated roller rotates under the drive of gear drive 3, and the rotating speed of each heated roller can be different.
As shown in Figures 2 and 3, the first heated roller 4 comprises flight 41 and cylindrical shell 42, and flight 41 is distributed on the inwall of cylindrical shell 42, and flight 41 is known conventional structure.Compound enters the first heated roller 4 through feeding port 1, and compound is uniformly distributed and disperses under the stirring of flight 41, absorb to carry out the heat of Self-air-heating on one side, (downwards towards the second heated roller 7) flows forward on one side.When compound completes after the stroke of the first heated roller 4, enter into first transition and shift cabin 6.
The structure of rotary connector 3 as shown in Figure 4, comprise entrance point 51, the port of export 52, turn core 53, bearing installing plate 54 and bearing 55, together with turning core 53 and entrance point 51 being bolted, bearing installing plate 54 is with together with the port of export 52 is bolted, turn between core 53 and the port of export 52 and turn between core 53 and bearing installing plate 54 bearing 55 all is set, entrance point 51 and the port of export 52 can not move in the axial direction like this, can only rotate.During application, together with the end that entrance point 51 and the port of export 52 shift cabin with an end of heated roller and transition respectively is bolted, can realize that heated roller shifts being connected of cabin with transition, heated roller can rotate simultaneously, and transition transfer cabin maintains static.
The structure that cabin 6 is shifted in transition is divided into two kinds of situations, and a kind of is that cabin is shifted in the high inclination-angle transition, and a kind of is that cabin is shifted in the small inclination transition.High inclination-angle transition transfer cabin refers to when the cabin installation is shifted in transition and the angle of inclination of horizontal direction is more than or equal to 60 ℃, and small inclination transition transfer cabin refers to when the cabin installation is shifted in transition and the angle of inclination of horizontal direction is less than 60 ℃.
The structure in high inclination-angle transition transfer cabin as shown in Figure 5, comprise cabin body 63, inboard drapery panel 64 and outside drapery panel 65, body 63 two ends in cabin are respectively supplied materials mouth 61 and discharging opening 62, are distributed with inboard drapery panel 64 and the outside drapery panel 65 of interlaced arrangement on the inwall of cabin body 63.Inboard drapery panel 64 and outside drapery panel 65 adopt has flexible metal material, with the internal face of cabin body 63, forms the acute angle that is greater than 60 ℃, and the method phase angle of interior drapery panel 64 and the extended line of outer drapery panel 65 is between ± 15 ℃.Supplied materials mouth 61 is accepted the compound from the heating of a upper heated roller, compound enters cabin body 63 and moves down under inertia force and self gravitation effect after interior, compound is in moving down process, at first be subject to inboard drapery panel 64 obstructs and changed flow direction, under the guide functions of inboard drapery panel 64, on the unrestrained drapery panel 65 outside of material from interior drapery panel 64 under landing, the material of trickling down this outer drapery panel under gravity and inertia acting in conjunction, be slipped to again next on drapery panel, therewith repeatedly until material enters next heated roller.Compound completes the transfer of shifting cabin in this transition after by discharging opening 62, enters next heated roller, and this unrestrained process is also the continuous switching process of material.The interlaced arrangement of inboard drapery panel 64 and outside drapery panel 65, not only make compound constantly be overturn at moving process, prevent the adhesion conglomeration, but also make thermal current hallway and mistake from compound, compound surface is as much as possible contacted with thermal current, increase the heating surface area interchange of heat, simultaneously, can also avoid compound and thermal current the phenomenon of " brushing past " to occur, realize the maximized effect of even interchange of heat and heat exchange.
The small inclination transition is shifted cabin as Fig. 6, comprises that equally body two ends, Ti， cabin, cabin are respectively supplied materials mouth and discharging opening, is that transmission mechanism 66 is set in the body of cabin.Move forward under transmission mechanism 66 effects after compound origin material mouth enters in the body of cabin, through discharging opening, enter next heated roller.Transmission mechanism can be selected the conveyer of existing conveying worm or other structure.Angle of inclination and material physical parameter that the helical angle of conveying worm shifts cabin according to transition are selected, and conveying worm can be self-powered, also can lean on supports for material down-sliding gravity driven rotary.
Compound shifts cabin 6 through first transition and enters the second heated roller 7.Due at the interior mixture temperature of the second heated roller 7 between 70-120 ℃, pitch in compound is in happy and harmonious state, easily produce the glutinous group that connects between reclaimed asphalt mixture, the non-constant of its mobility, even easily produce the filling phenomenon, and now heating surface area sharply reduces, heat exchange effect also sharply reduces.Glutinously while in order to solve reclaimed asphalt mixture, being heated to happy and harmonious state be linked togather, form larger bulk, reduce heating surface area, be unfavorable for the problem of compound thermally equivalent, as shown in Figure 7 and Figure 8, also be provided with crushing mechanism except being provided with flight 73 in the cylindrical shell 74 of the second heated roller 7, crushing mechanism is at the interior spaced line of cut of cylindrical shell 74, adjacent line of cut is arranged at an angle, preferably be 90 degree and arrange, make line of cut be divided into crosscut secant 71 and perpendicular line of cut 72.On adjacent crosscut secant group 71 and cylindrical shell 74 inwalls between perpendicular line of cut group 72, flight 73 is set.Crosscut secant 71 and perpendicular line of cut 72 can be arranged in parallel many on same cross section.After compound enters second level heated roller 7, under the stirring of flight 73, material is uniformly distributed and disperses in cylindrical shell 74, when absorbing the Self-air-heating heat, flows forward.Line of cut, except playing dissection, also utilizes its elasticity to play the effect of beaing to the glutinous connection of compound group, all is conducive to the pulverizing of the glutinous connection of compound group.
When compound completes after the stroke of the second heated roller 7, shift cabin by the second transition and enter the 3rd heated roller 8.The inside of the 3rd heated roller 8 and first order heated roller 4 arranges basically identical, and cutting wire no longer is set, and only in its cylindrical shell, flight is set.Compound is uniformly distributed and disperses under the stirring of the 3rd heated roller 8 interior flights, absorb to carry out the heat of Self-air-heating on one side, flow forward on one side, through discharge gate 9, flow out, complete whole heating procedure.
The utility model adopts the multiple-roll structure, has following characteristics:
(1) adapt to the different conditions of reclaimed asphalt mixture heating process, solved glutinous connection clique problem.
(2) adapt to the Drying Technology Parameter under the reclaimed asphalt mixture different conditions:
(when temperature lower (temperature≤70 ℃), do not reach asphalt softening point) when at the first state, reclaimed asphalt mixture still keeps original separate state, good fluidity.The utility model, in the first heated roller 4, flight 41 only being set, meets the requirement of Flow of Goods and Materials, and the angle of slope of heated roller 4 can be smaller, and rotating speed is just corresponding lower.
When at the second state (when temperature of charge (70 ~ 120 ℃) during state between, pitch is in happy and harmonious state), produce the glutinous group that connects between reclaimed asphalt mixture, the non-constant of its mobility, even produce the filling phenomenon, and now heating surface area sharply reduces, heat exchange effect also sharply reduces.The utility model is at interior crushing mechanism and the flight 73 of arranging of the second heated roller 7, flight 73 adapts to this state, can take up the material of thickness come, also to prevent from being bonded on flight simultaneously, crushing mechanism (line of cut) carries out cutting and crushing and rapping to the glutinous group's material that connects, and has improved the mobility of material.Require the angle of slope of the second heated roller 7 to want large simultaneously, take full advantage of the effect of gravity, the speed of increase down sliding, and the rotating speed of the second heated roller 7 will increase, and increases its centrifugal inertia, is convenient to interchange of heat; Also can carry out surfacing to inner wall of rotary drum and flight, the compatibility of reduction and pitch, prevent bonding.
When in the third state (when temperature is higher (>=120 ℃), pitch melts fully), pitch breaks away from from stone, the no longer glutinous group that connects of reclaimed asphalt mixture, and mobility is better.The utility model only arranges flight in the 3rd heated roller 8, and the drum rotation speed angle of slope in this stage can reduce, and rotating speed can improve, between first and second two states, (3) reduce energy consumption, increase heat transfer effect, delayed hot gas flow, be conducive to fully carry out interchange of heat.
(3) hot blast of the present utility model is taked reverse-flow mode, and material is had to higher drying efficiency.Reworked material, new pitch and powder have all been avoided red-hot flame and combustion gas, so the problems such as blue smoke, ageing of asphalt, race powder all can better be solved.This be because: the A. reverse flow, heat utilization efficiency is high: the mode that adopts reverse heat-exchange in order to improve the thermal efficiency, hot blast enters from discharge port end is reverse, high temperature gas flow contacts the high temperature regeneration bituminous mixture like this, low-temperature airflow contact low-temp recovery bituminous mixture, exhaust temperature just can be minimum, and heat utilization ratio is the highest; B. the reclaimed asphalt mixture outlet temperature can guarantee, will reach 150 degree left and right according to designing requirement reclaimed asphalt mixture outlet temperature, and require to produce continuously, production capacity is taller, the import hot blast is in 700 about degree, temperature that can the high exit of Quick reclaimed asphalt mixture; C. can keep volatile substance here, reduce and pollute.Pitch some light component when high temperature easily volatilizees, and reverse flow just allows volatile ingredient solidify at the low temperature place, and from newly getting back to reclaimed asphalt mixture.The loss of light component is one of principal element of pitch decay.
(4) reduce erection space:
Asphalt paving has uniform temperature to require, if the road pavement scope of operation away from bituminous mixing plant, what asphalt temperature can reduce is larger, that is to say that bituminous mixing plant has certain service radius.In order to guarantee the temperature of pitch, bituminous mixing plant generally will be along with the road surfacing situation along with transfer.The place of discarded agitator recovers more difficult again, in the situation that land resources is at full stretch, the land use area that reduces agitator is extremely important.The utility model adopts the vertical layout of S shape, has reduced axial length, has reduced floor space.
(5) convenient transportation:
The utility model adopts a plurality of component combinations to form, and convenient disassembly, during transportation, can be dismantled according to movement requirement, has reduced dismounting and transport difficulty, has lowered cost.
Claims (6)
1. the snakelike multiple-roll continuous heating of reclaimed asphalt mixture, comprise bracing frame, the first heated roller, the second heated roller and the 3rd heated roller, be provided with flight on each heated roller inwall, it is characterized in that: be provided with First Transition between the first heated roller and the second heated roller and shift cabin, be provided with the second transition between the second heated roller and the 3rd heated roller and shift cabin, the first heated roller, First Transition shifts cabin, the second heated roller, cabin is shifted in the second transition and the 3rd heated roller is docking together from top to bottom, each joint arranges rotary connector, three all inclined installations of heated roller, be arranged to S shape, each heated roller all is supported on roller support, roller support is fixed on bracing frame, transition is shifted cabin and all is fixed on bracing frame, the front end of the first heated roller is provided with air-vent and feeding port, the end of the 3rd heated roller is provided with discharge gate and is connected with unit heater, be provided with crushing mechanism in the second heated roller, this crushing mechanism is line of cut spaced in cylindrical shell.
2. the snakelike multiple-roll continuous heating of reclaimed asphalt mixture according to claim 1, it is characterized in that: described rotary connector comprises entrance point, the port of export, turns core and bearing installing plate, turn core and entrance point links together, bearing installing plate and the port of export link together, turn between core and the port of export and turn core and the bearing installing plate between bearing all is set.
3. the snakelike multiple-roll continuous heating of reclaimed asphalt mixture according to claim 1, it is characterized in that: described transition is shifted cabin and is comprised cabin body, inboard drapery panel and outside drapery panel, body two ends, cabin are respectively supplied materials mouth and discharging opening, are distributed with inboard drapery panel and the outside drapery panel of interlaced arrangement on the inwall of cabin body.
4. the snakelike multiple-roll continuous heating of reclaimed asphalt mixture according to claim 3, it is characterized in that: the internal face of described inboard drapery panel and outside drapery panel and cabin body forms the acute angle that is greater than 60 ℃, and the method phase angle of interior drapery panel and the extended line of outer drapery panel is between ± 15 ℃.
5. the snakelike multiple-roll continuous heating of reclaimed asphalt mixture according to claim 1 is characterized in that: described transition is shifted cabin and is comprised cabin body and transmission mechanism, and body two ends, cabin are respectively supplied materials mouth and discharging opening, in the body of cabin, transmission mechanism are set.
6. the snakelike multiple-roll continuous heating of reclaimed asphalt mixture according to claim 1, it is characterized in that: in described the second heated roller, the adjacent line of cut of crushing mechanism is 90 degree interlaced arrangement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320463682.0U CN203373642U (en) | 2013-08-01 | 2013-08-01 | Snakelike multiple-roller continuous heating device for recycled asphalt mixture |
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| CN201320463682.0U CN203373642U (en) | 2013-08-01 | 2013-08-01 | Snakelike multiple-roller continuous heating device for recycled asphalt mixture |
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| CN201320463682.0U Expired - Fee Related CN203373642U (en) | 2013-08-01 | 2013-08-01 | Snakelike multiple-roller continuous heating device for recycled asphalt mixture |
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| Country | Link |
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| CN (1) | CN203373642U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362050A (en) * | 2013-08-01 | 2013-10-23 | 张树生 | Recycled asphalt mixture S-shaped multi-roller continuous heating device |
| CN105600508A (en) * | 2016-03-14 | 2016-05-25 | 蔡惠文 | Step type spiral conveying device |
| CN105775789A (en) * | 2016-03-14 | 2016-07-20 | 蔡惠文 | Stepped type spiral transporting and crushing device |
| CN107446607A (en) * | 2017-08-01 | 2017-12-08 | 东莞东交沥青有限公司 | A kind of pitch automatic temperature-controlled heat-exchanger rig |
-
2013
- 2013-08-01 CN CN201320463682.0U patent/CN203373642U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362050A (en) * | 2013-08-01 | 2013-10-23 | 张树生 | Recycled asphalt mixture S-shaped multi-roller continuous heating device |
| CN103362050B (en) * | 2013-08-01 | 2015-10-14 | 张树生 | The snakelike multiple-roll continuous heating of a kind of reclaimed asphalt mixture |
| CN105600508A (en) * | 2016-03-14 | 2016-05-25 | 蔡惠文 | Step type spiral conveying device |
| CN105775789A (en) * | 2016-03-14 | 2016-07-20 | 蔡惠文 | Stepped type spiral transporting and crushing device |
| CN105600508B (en) * | 2016-03-14 | 2018-02-16 | 东莞益海嘉里粮油食品工业有限公司 | A kind of staged helical conveyer device |
| CN107446607A (en) * | 2017-08-01 | 2017-12-08 | 东莞东交沥青有限公司 | A kind of pitch automatic temperature-controlled heat-exchanger rig |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160801 |