CN1380920A - Aggregate dryer for asphalt plant - Google Patents
Aggregate dryer for asphalt plant Download PDFInfo
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- CN1380920A CN1380920A CN01801303A CN01801303A CN1380920A CN 1380920 A CN1380920 A CN 1380920A CN 01801303 A CN01801303 A CN 01801303A CN 01801303 A CN01801303 A CN 01801303A CN 1380920 A CN1380920 A CN 1380920A
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- Prior art keywords
- going barrel
- aggregate
- drum
- drying device
- material drying
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Machines (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention allows reducing the required installation area of an aggregate drying apparatus by shortening the length of the rotating drum and a reduction of energy without decreasing the dryness of the aggregate. A rotating drum that joins in a straight line a drum for recycle aggregate material and a drum for virgin aggregate material is supported freely rotatably on a support platform via rollers. For each drum, the ratio (L/D) of the length L to the diameter D is set in the range of 1.5 to 2.5, and a plurality of flights provided inside in the peripheral direction and the axial direction. The flight members provided at the downstream side of the direction of conveyance of the aggregates in the flights are inclined in the direction in which the aggregate is pushed back. On the side edge part of each flight member, a long slit is provided in the longitudinal direction of the flight members, and the falling veil of the aggregate being lifted and dropped by each of the flight members becomes even, and contact with heated air occurs advantageously.
Description
Technical field
The skeletal material drying device of the pitch batching plant of the laying waste material (regeneration aggregate) that has dug when the present invention relates to the new aggregate of dry heat, laying road.
Background technology
The pitch batching plant it is desirable to be arranged near the construction site of laying road, lays machinery can apace the pitch mixed material of making being supplied with.But it is big owing to it is required area to be set, so can not be arranged on narrow place, the restriction in place is set sometimes, can not be arranged near the job site of laying road.
In recent years, the pitch batching plant is outside the equipment of the new mixed material of making the pitch mixed material, also require to be provided for making the optional equipment of regenerative mixed material and drainage mixed material, its required area also becomes bigger, therefore more and more is difficult to select to be provided with the place.
Before, be conceived to the configuration of the constituent apparatus of pitch batching plant, all trials have been carried out in order to reduce the required area that is provided with as far as possible, but, in the above-mentioned constituent apparatus, occupy very big required main body mixing tower and the skeletal material drying device (drier) that area is set, only with in the configuration of device, working hard, especially to having the pitch batching plant of described optional equipment, fail to reduce fully the required area that is provided with.
In the constituent apparatus of pitch batching plant, skeletal material drying device is that long cylindric going barrel is disposed along its length direction traverse, so if its length can be reduced, just can reduce the required area that is provided with of himself thus, simultaneously, also can shorten it and supply with distance between the aggregate hopper of aggregate to skeletal material drying device, reduce the whole required area that is provided with effectively.
Existing skeletal material drying device is to make aggregate utilize scraper plate in going barrel and sweep repeatedly and fall, and at it during a side direction opposite side moves, be used for carrying out the device of dry heat from the burning gases of pulverizing jet, the length L of going barrel is fully guaranteed the holdup time of aggregate in going barrel, thereby obtain being suitable for the aridity of the aggregate that the pitch mixed material makes, therefore, be set at 3.0～5 scope in ratio (L/D) practicality of length L with respect to the diameter D of going barrel.
Usually, (D * Sd * N) (k is a coefficient to the holdup time T of aggregate by T=k * L, Sd is the inclination of going barrel, N is the rotating speed of going barrel) formula provide, if for the area that is provided with that reduces skeletal material drying device reduces the ratio (L/D) of length with respect to the diameter of going barrel, then as shown from the above formula, the holdup time T shortening proportional with it of aggregate can not obtain the required aridity of aggregate.
Therefore, in existing skeletal material drying device, can not make above-mentioned length, can not the required area that is provided with that area reduces the pitch batching plant be set by reducing it with respect to the ratio (L/D) of the diameter of going barrel scope less than above-mentioned setting.
Summary of the invention
The skeletal material drying device of pitch of the present invention batching plant has cylindric going barrel, this cylindric going barrel is bearing on the supporting station, can be freely around the axle rotation of tilting, its inside is provided with a plurality of scraper plates along circumferential and axial, the aggregate that supplies to this going barrel inside utilizes the bottom of described scraper plate spin rotary drum to sweep, fall by top, along axially carrying of going barrel from one side direction opposite side, utilize the heated-air drying send in the going barrel to heat described aggregate simultaneously, the length of described going barrel is set in respect to the ratio of its diameter in 1.5～2.5 the scope.
According to the skeletal material drying device of this pitch batching plant,,, can shorten length L increase diameter D under the certain situation of its volume so going barrel is compared with existing apparatus because the length L of going barrel is set in respect to the ratio (L/D) of diameter D in 1.5～2.5 the scope.
Therefore, the aggregate that is swept by scraper plate becomes big by the zone (aggregate falls the width of film) that the top of going barrel falls, even the length L of going barrel is short, aggregate can carry out well with contacting also of hot blast, can obtain required aridity, simultaneously, the length L weak point of the going barrel part of going can reduce the plane long-pending (the required area that is provided with) of skeletal material drying device.
Description of drawings
Fig. 1 is the system drawing of skeletal material drying device of the pitch batching plant of the embodiment of the invention 1;
Fig. 2 is the major part longitudinal plan of skeletal material drying device of the pitch batching plant of the embodiment of the invention 1;
Fig. 3 is the X-X sectional drawing of Fig. 2;
Fig. 4 is that the Y of Fig. 3 is to view;
Fig. 5 is the major part longitudinal plan of skeletal material drying device of the pitch batching plant of the embodiment of the invention 2;
Fig. 6 is the system drawing of skeletal material drying device of the pitch batching plant of the embodiment of the invention 3;
Fig. 7 be the skeletal material drying device of pitch of the present invention batching plant and existing pitch batching plant skeletal material drying device the long-pending comparison diagram in plane is set, Fig. 7 (A) be pitch of the present invention batching plant skeletal material drying device plan view is set, Fig. 7 (B) be existing pitch batching plant skeletal material drying device plan view is set.
The specific embodiment
Describe the skeletal material drying device of the pitch batching plant of the embodiment of the invention with reference to the accompanying drawings in detail.
Fig. 1～Fig. 4 shows the skeletal material drying device A of the pitch batching plant of the embodiment of the invention 1.
This skeletal material drying device A comprises: going barrel 3, and it has the regeneration aggregate that is positioned on the same axis, connects and be combined as a whole and uses drum (first going barrel) 1 and new aggregate with rousing (second going barrel) 2; Cold manifold 4 and hot hopper 5 are provided with drum 1 around regeneration aggregate an end and the other end (being left part and right part among Fig. 1,2) of regeneration aggregate with drum 1 respectively; Cold manifold 6 and hot hopper 7 are provided with drum 2 around new aggregate an end and the other end (being left part and right part among Fig. 1,2) of new aggregate with drum 2 respectively; Pulverizing jet 8, it is located on the hot hopper 7; Regeneration aggregate feeding device 9 with distolateral link to each other of regeneration aggregate with drum 1, is supplied with regeneration aggregate in described drum 1; New aggregate feeding device 10 with distolateral link to each other of new aggregate with drum 2, is supplied with new aggregate in described drum 2; Deodorization stove 12, it has pulverizing jet 11; With dust collect plant 13.
Described going barrel 3 have the described regeneration aggregate that utilizes the next door 3a be located at its length direction central authorities that a cylindric drum is divided to form with drum 1 and new aggregate with drum 2, its axis tilts, and makes described regeneration aggregate higher with drum 1 side.Going barrel 3 be embedded in iron ring 3b on its periphery, 3b mounting on the roller 15a, the 15b that are provided with on the supporting station 14, going barrel 3 is bearing on the supporting station 14, can be along rotating in a circumferential direction freely.By described roller 15a, 15b the rotating driving device 16 of the formations such as motor of going barrel 3 rotations is fixed on the supporting station 14.
Circumferentially have the through hole h1 that a plurality of and described hot hopper 5 is communicated with at described regeneration aggregate with another distolateral edge of drum 1, the regeneration aggregate of the heating that is dried is discharged by the outlet opening 5a that is located at hot hopper 5 bottoms.Circumferentially have the through hole h2 that a plurality of and described cold burden bucket 6 is communicated with at described new aggregate with a distolateral edge of drum 2, new aggregate is dropped in the drums 2 from described new aggregate feeding device 10.
In addition, at described regeneration aggregate with drum 1 and new aggregate with on the inner peripheral surface of drum 2, be provided with a plurality of scraper plates 17 by appropriate intervals respectively along circumferential and axial, respectively regeneration aggregate and new aggregate are swept and at top g2 it fallen from the bottom g1 of each drum 1,2.
As shown in Figure 2, described scraper plate 17 is parallel to being axially arranged with of each drum 1,2 and is positioned at regeneration aggregate, new aggregate to drop into side (upstream side of each aggregate throughput direction E) be regeneration aggregate with drum 1 and new aggregate with one of drum 2 each distolateral blade member 18.In addition, the discharge side (downstream side of each aggregate throughput direction E) that is positioned at regeneration aggregate, new aggregate be regeneration aggregate with drum 1 and newly aggregate be obliquely installed to the direction that makes each aggregate return upstream side with another each distolateral blade member 19 of drum 2.That is to say that blade member 19 tilts with tilt angle theta, make the direction of rotation oral-lateral (with reference to Fig. 4) of downstream side end 19a than more close each drum 1,2 of upstream side end 19b.
The cross section of each scraper plate 17 forms roughly U font, and along the length direction prolongation of each drum 1,2, the side portion 17a of a side (base end side) of each scraper plate 17 is fixed on the internal face of each drum 1,2.The bottom side portion 17b of each scraper plate 17 is towards the approximate centre direction of each drum 1,2, and the side portion 17c of the opposite side of each scraper plate 17 (free end side) is towards the direction of rotation F of each drum 1,2.
Connect with appropriate intervals along its length direction at the side portion 19c of the free end side of each blade member 19 that tilts and to offer the slit 19d that a plurality of long limits are positioned at described length direction.
Each blade member 19 of described inclination axially not only can be established one group many groups also can be set along each drum 1,2.In this case, can make each group phase place each other be unified in the direction of rotation of each drum 1,2 mutually or it is staggered, in addition, also can make its tilt angle theta become big gradually to the parts of downstream side from the parts of upstream side.In addition, each scraper plate 17 can save parallel scraper plate 18, is made of the scraper plate 19 of whole inclinations.In this case, also with above-mentioned same, make its tilt angle theta become big gradually to the parts of downstream side from the parts of upstream side.
Described regeneration aggregate is set in respect to the ratio (L/D) of its diameter D with bulging (second going barrel) 2 length L separately with drum (first going barrel) 1 and new aggregate in 1.5～2.5 the scope.
During than (L/D) less than 1.5, be dried in each drum 1,2 heating and the regeneration aggregate of carrying vertically and the new holdup time of aggregate each drum 1,2 in are too short when above-mentioned, described regeneration aggregate and newly the aridity of aggregate be unsuitable for making the pitch mixed material.And when above-mentioned when surpassing 2.5 than (L/D), the length of each drum 1,2 becomes long, and it is big that the surface area of each drum 1,2 becomes, and the heat radiation of wall is many, has increased the fuel consumption of pulverizing jet.
Described regeneration aggregate has identical diameter with new aggregate with drum 2 with drum 1, but also can make mutual diameter difference, even certainly in this case, length L separately also will be set in the described scope with respect to the ratio (L/D) of its diameter D.
Described cold manifold 4 has the chute 4b that top is provided with regeneration aggregate input port 4a, and end face portion has hot blast introducing port 4c, is fixed on the described supporting station 14, and described regeneration aggregate distolaterally seals for the rotation that allows described drum 1 with one of drum 1.
Described hot hopper 5 is provided with the bottom and has the fumer 5c that outlet opening 5a, top have mist elimination strainer 5b, allows the rotation of regeneration aggregate with drum 1, is fixed on the described supporting station 14.
Described cold burden bucket 6 tops have fumer 6a, and the sidepiece of fumer 6a is provided with chute 6b, allow the rotation of new aggregate with drum 2, are fixed on the described supporting station 14.
Described hot hopper 7 bottoms have outlet opening 7a, and end face portion has hot blast introducing port 7b, are fixed on the described supporting station 14, and it is distolateral with another of drum 2 to seal described new aggregate, to allow the rotation of this drum 2.
Described regeneration aggregate feeding device 9 is made of ribbon conveyer etc., and the upper end links to each other with the regeneration aggregate input port 4a of described cold manifold 4.
New aggregate feeding device 10 is made of ribbon conveyer 10a and input elevator 10b etc., links to each other with the chute 6b of described cold burden bucket 6.
Described deodorization stove 12 imports discharge gas from the plenum duct 20 of the air door 22 of the fumer 5c of described hot hopper 5 through being provided with ventilator 21 and Electric Machine Control, is made the remaining heavy fog burning of discharging in the gas by pulverizing jet 11.The outlet opening of deodorization stove 12 opens and closes the branched bottom 23,24 of regulating freely air door 23a, 24a through having respectively, is connected with the hot blast introducing port 4c of described cold manifold 4 and the hot blast introducing port 7b of described hot hopper 7.
Described dust collect plant 13 is made of sack cleaner, and its upstream side opens and closes the exhaust passage 25,26 of regulating freely exhaust airstream adjuster 25a, 26a and is connected on the fumer 6a of the fumer 5c of described hot hopper 5 and described cold burden bucket 6 through having.
The downstream side of described dust collect plant 13 by having Electric Machine Control air door 27 and the attraction passage 29 of exhaust blower 28 be connected with chimney 30.
The following describes the as above effect of the skeletal material drying device of the pitch batching plant of structure.
Under the situation of dry heat regeneration aggregate and new aggregate, make going barrel 3 rotations at the same time, make described regeneration aggregate feeding device 9 and 10 work of new aggregate feeding device simultaneously, then, make pulverizing jet 11 work of the pulverizing jet 8 and the deodorization stove 12 of described hot hopper 7.To send into regeneration aggregate with drum 1 from the hot blast of deodorization stove 12, will send into new aggregate with drum 2, with regeneration aggregate, new aggregate be dropped into respectively in each drum 1,2 through chute 6b through input port 4a and chute 4b from the hot blast of pulverizing jet 8 and deodorization stove 12.Drop into the aggregate (regeneration aggregate, new aggregate) of each drum 1,2 and carried to downstream side from upstream side, the heating that is dried is simultaneously discharged respectively from the outlet opening 5a of described hot hopper 5, the outlet opening 7a of described hot hopper 7.The discharge gas that the dry heat of each aggregate is discharged is flowed through dust collect plant 13 by exhaust blower 28 and is purified, and is discharged into the atmosphere from chimney 30.
In above-mentioned, regeneration aggregate in one distolateral (upstream side) input regeneration aggregate usefulness drum 1, pick up in the bottom of regeneration aggregate by the scraper plate 17 that is provided with in interior week of regeneration aggregate with drum 1 with drum 1, on top it is fallen, so repeatedly, simultaneously, carry to another distolateral (downstream side) in regular turn, it is contacted with hot blast from deodorization stove 12, carry out dry heat.At this moment, the blade member 19 of being located at the downstream side of described scraper plate 17 tilts to the direction that makes described regeneration aggregate return upstream side, so at the downstream side of regeneration aggregate with drum 1, the transporting velocity towards dirty of regeneration aggregate slows down, and regeneration aggregate was fully guaranteed with the holdup time of regeneration aggregate in the drum 1.
By the length L of drum 1 being set in respect to the ratio (L/D) of diameter D in 1.5～2.5 the scope, can set the diameter D of drum 1 bigger, can increase the width that falls film of above-mentioned regeneration aggregate, so regeneration aggregate is good with contacting of hot blast.
Therefore, according to described regeneration aggregate drum 1, even as mentioned above the length L of drum 1 is set in 1.5～2.5 the scope less than prior art with respect to the ratio (L/D) of diameter D, also can supplies with reliably and have the regeneration aggregate that to make the aridity of pitch mixed material well.
When described regeneration aggregate carries out the dry heat of regeneration aggregate, drop into new aggregate is accompanied by this drum 2 with the new aggregate of the upstream side of an end of drum 2 rotation to the downstream side heating of carrying in regular turn and be dried, at this moment, new aggregate is same with the situation of drum 1 with the dry heat effect and the described regeneration aggregate of new aggregate in the drum 2, its explanation of Therefore, omited.
In above-mentioned, behind the mist elimination strainer 5b removal heavy fog composition of the discharge gas that comprises the heavy fog composition that the dry heat regeneration aggregate produces by the discharge case 5c of described hot hopper 5, by exhaust passage 25, the discharge gas of the exhaust passage 26 of the flowing through interflow with the dry heat effect of new aggregate, attract by dust collect plant 13, remove dust.Therefore, the heavy fog and the dust of discharging in the gas are removed more completely, and even dust collect plant 13 adopts sack cleaner, its mesh stops up and also can alleviate.
In above-mentioned, when opening air door 22 and make ventilator 21 work, just be admitted to the combustion chamber of deodorization stove 12 by plenum duct 20 by the discharge gas of described mist elimination strainer 5b, at this remaining heavy fog is burnt.Therefore, can prevent the foul smell public hazards that heavy fog causes.
Towards the internal circulating load of the discharge gas of deodorization stove 12 by air damper 22 and exhaust airstream adjuster 25a the switching degree and the running speed of regulating ventilator 21 regulate.The hot blast that deodorization stove 12 produces is regulated by the switching degree of air damper 23a, 24a with the sendout of drum 2 with drum 1 and new aggregate regeneration aggregate.
In above-mentioned, the situation of using regeneration aggregate to use drum 2 both dry heat regeneration aggregates and new aggregate with drum 1 and new aggregate has been described.But the exhaust airstream adjuster 26a by closing exhaust passage 26 and the air door 24a of branched bottom 24 simultaneously, stop new aggregate feeding device 10, and regeneration aggregate is supplied to regeneration aggregate with drum 1, only dry heat regeneration aggregate.By exhaust airstream adjuster 25a and air door 23a, the 24a of each branched bottom 23,24 and the air door 22 of plenum duct 20 of closing exhaust passage 25, simultaneously, stop the work and the regeneration aggregate feeding device 9 of the pulverizing jet 11 of deodorization stove 12, new aggregate drum 2, only this new aggregate of dry heat are arrived in new aggregate feeding.
Fig. 5 shows the skeletal material drying device B of the pitch batching plant of the embodiment of the invention 2.
The skeletal material drying device B of Fig. 5 does not resemble and is combined into going barrel 3 with drum 1 and new aggregate with drum 2 one by regeneration aggregate the skeletal material drying device A of described embodiment 1, but split constitutes two drums 1,2.And regeneration aggregate is situated between respectively with drum (second going barrel) 2a with drum (first going barrel) 1a and new aggregate and is bearing in freely on the supporting station 14 by roller 15c, the 15d rotation by motor (rotating driving device) 16a, the rotation of 16b drive.
Other structures are identical with the device of described embodiment 1, thus give prosign to identical structure division, and omit its explanation.
According to the skeletal material drying device B of this embodiment 2, except that can realize with the same action effect of the skeletal material drying device A of the foregoing description 1, also have following action effect.
That is to say, because but the drive regeneration aggregate is with rousing (first going barrel) 1a and new aggregate with drum (second going barrel) 2a, so under the situation of the drum that can not use a side, can stop the running of this drum, individual operation by another drum carries out operation, can save the energy.In addition, because during the drum of a side overhauled etc., the drum of opposite side can work on, so skeletal material drying device is turned round efficiently.And, in maintenance, to change when bulging, because length of each drum is short, so can easily change operation.
In the skeletal material drying device B of embodiment 2, same with the situation of the skeletal material drying device A of embodiment 1, be regeneration aggregate to be configured on the same axis with the axis of drum 2a with drum 1a and new aggregate and formation, but, because regeneration aggregate is drive with drum 1a and new aggregate with drum 2a, so may not necessarily so constitute.With the axis of two drum 1a, 2a be configured in respectively on two lines that incline direction is identical, the angle of inclination is same or different constitute also passable.Also can be configured on the same or different line of incline direction reverse inclination angle.Under these situations, the input port of aggregate (regeneration aggregate, new aggregate) is set, the outlet opening of aggregate is set, carry aggregate from high-order side direction low level side in the end side that is in low level in the end side that is in high-order each drum 1a, 2a because of inclination.
In addition, Fig. 6 shows the skeletal material drying device C of the pitch batching plant of embodiments of the invention 3.
The skeletal material drying device C of Fig. 6 is bearing in regeneration aggregate on the different supporting stations with drum (second going barrel) 2b with new aggregate with drum (first going barrel) 1b, and is located at the device of pitch batching plant.
Other structures are identical with skeletal material drying device A, the B of described each embodiment, thus give prosign to identical structure division, and omit its explanation.
According to the skeletal material drying device C of this embodiment, except that can realize with the same action effect of skeletal material drying device A, the B of the various embodiments described above, also can be according to the situation that the place is set, suitably set the configuration regeneration aggregate with drum 1b and new aggregate with drum 2b.
Skeletal material drying device A, B, C according to described embodiment 1,2,3, because regeneration aggregate is set at the length L of the going barrel ratio (L/D) with respect to diameter D less than the numerical value that has skeletal material drying device now with at least one that rouses (second going barrel) 2,2a, 2b with drum (first going barrel) 1,1a, 1b and new aggregate, be in 1.5～2.5 the scope, so can shorten the length overall of the going barrel 3 of skeletal material drying device, and reduce the required area that is provided with of skeletal material drying device thus, simultaneously, can reduce the surface area of drum, reduce the heat radiation of the outside wall surface of drum, save the energy.When being arranged on skeletal material drying device on the overhead gantry, can shorten the length of pallet, realize its miniaturization, subdue manufacturing cost significantly.
In addition, for example (volume of drum is 27.7m with drum when the existing new aggregate with respect to going barrel diameter D=2.1m, length L=8m
3), with the identical of the present invention new aggregate of volume of drum with bulging when being set at the diameter D=2.6m of going barrel, length L=5.2m then, L/D=2.0, the length L of going barrel is than existing short 2.8m.The surface area of existing going barrel is 52.8m in addition
2, and new aggregate of the present invention is 42.5m with the surface area that rouses
2, reduce 19.5% approximately compared with the existing.The reduction of this surface area can reduce the heat radiation of bulging wall, and according to the running effect of reality, the new aggregate of the application of the invention is with rousing, and compared with the existing, the thermal efficiency can improve 5～10%, can obtain province's energy effect, and this is firmly established.
Fig. 7 be when relatively the skeletal material drying device B of the skeletal material drying device A of described embodiment 1 or embodiment 2 being arranged at the pitch batching plant (Fig. 7 (A)) skeletal material drying device be provided with area S1 with existing with regeneration aggregate with drum and new aggregate with the bulging figure that area S2 is set of (Fig. 7 (B)) skeletal material drying device when being bearing in the skeletal material drying device on the different supporting stations and being located at the pitch batching plant.As shown in Figure 7, the skeletal material drying device of the embodiment of the invention 1 or embodiment 2 and existing skeletal material drying device ratio can reduce (reducing 40% approximately) significantly area is set.
In addition, in Fig. 7, label 2y is the regeneration aggregate drum of existing dry heat device, and label 31 is the mixing tower of pitch batching plant, and label 32 is storage facilities of regeneration aggregate, and label 33 is to be attached to the combustion chamber of regeneration aggregate with drum 2y.The symbol of the inscape that has illustrated among skeletal material drying device A, the B of other symbols and described each embodiment is identical.
Owing to be provided with scraper plate 19 in the inside of described going barrel 3, this scraper plate 19 tilts to the direction that the upstream side that makes regeneration aggregate or new its transfer direction of aggregate phase returns, so as mentioned above, even the length L of drum is set at less than existing apparatus with respect to the ratio (L/D) of diameter D, also can fully guarantee regeneration aggregate or the new holdup time of aggregate in going barrel 3, can obtain in the essential aridity of pitch batching plant manufacturing pitch mixed material.
In addition, by making described existing new aggregate drum (the diameter D=2.1m of going barrel, length L=8m, L/D=3.8) and described new aggregate of the present invention with drum (the diameter D=2.6m of going barrel, length L=5.2m, L/D=2.0) real-world operation, holdup time T to aggregate in the going barrel, the aridity of aggregate (the residual moisture content of dry back aggregate) w compares, its result, T=180～210 second have been confirmed in existing new aggregate drum, w=0.05%, relative therewith, use in the drum at new aggregate of the present invention, T=218 second, w=0.02～0.06%, although new aggregate of the present invention uses the L/D of its going barrel of drum less than existing drum, the holdup time of aggregate, aridity is all no less than existing drum.
In addition, in described embodiment, going barrel 3 all has regeneration aggregate drum 1,1a, 1b and new aggregate drum 2,2a, 2b, to regeneration aggregate and new aggregate or wherein one carry out dry heat, but, also can be used as only have regeneration aggregate with drum and new aggregate with one of drum, and separately one of dry heat regeneration aggregate and new aggregate skeletal material drying device and constitute.In this case, also can reduce the required area that is provided with of skeletal material drying device, also can save the energy.
Utilizability on the industry
As mentioned above, according to the skeletal material drying device of pitch of the present invention batching plant, because the length of going barrel Degree L is set in respect to the ratio (L/D) of diameter D in 1.5～2.5 the scope, so going barrel is certain at volume Situation under, compare with existing going barrel, can shorten length L, increase diameter D, therefore, can increase Scraped the width that falls film of the aggregate on top by scraper plate, even the length short bone material of going barrel and hot blast Contact also can be carried out well, can obtain required aridity.
And the part of the contraction in length of going barrel can reduce the required area that arranges of skeletal material drying device.
Therefore, can not limit the selection that the place is set and the pitch batching plant easily is set.
Claims (9)
1, the skeletal material drying device of a kind of pitch batching plant, has cylindric going barrel, this cylindric going barrel is bearing on the supporting station, can be freely around the axle rotation of tilting, its inside is provided with a plurality of scraper plates along circumferential and axial, the aggregate that supplies to this going barrel inside utilizes the bottom of described scraper plate spin rotary drum to sweep, fall by top, along axially carrying of going barrel from one side direction opposite side, utilize the heated-air drying of sending in the going barrel to heat described aggregate simultaneously, it is characterized in that the length of described going barrel is set in respect to the ratio of its diameter in 1.5～2.5 the scope.
2, the skeletal material drying device of pitch as claimed in claim 1 batching plant, it is characterized in that, described scraper plate is fixed on the base end side of each blade member on the internal face of going barrel, free end side is towards the approximate centre direction of going barrel, length direction is towards the length direction of going barrel and dispose, be located at the blade member of aggregate throughput direction downstream side, its length direction tilts towards the direction that makes aggregate return upstream side with respect to the axis direction of going barrel.
3, the skeletal material drying device of pitch as claimed in claim 2 batching plant is characterized in that, the blade member of described inclination is provided with side portion towards the direction of rotation of going barrel at its free end, offers a plurality of slits along its length in this side portion.
4, the skeletal material drying device of pitch as claimed in claim 1 batching plant, it is characterized in that, described going barrel has first going barrel of dry heat regeneration aggregate and second going barrel of the new aggregate of dry heat, described first, second going barrel is positioned on the same line axis separately, connects and is combined as a whole.
5, the skeletal material drying device of pitch as claimed in claim 1 batching plant, it is characterized in that, described going barrel has first going barrel of dry heat regeneration aggregate and second going barrel of the new aggregate of dry heat, described first, second going barrel is driven in rotation independently of each other mutually along the axis direction arranged in series.
6, the skeletal material drying device of pitch as claimed in claim 4 batching plant, it is characterized in that, described going barrel also is provided with the deodorization stove with pulverizing jet, and is burned at described deodorization stove by the waste gas that described first going barrel is discharged, and imports at least one side of described first going barrel and second going barrel.
7, the skeletal material drying device of pitch as claimed in claim 6 batching plant is characterized in that the outlet opening of the combustion gas of described deodorization stove is connected to the end of described first going barrel and second going barrel through having the branched bottom of switching air door freely.
8, the skeletal material drying device of pitch as claimed in claim 2 batching plant, it is characterized in that, described going barrel has first going barrel of dry heat regeneration aggregate and second going barrel of the new aggregate of dry heat, described first, second going barrel axis separately is positioned on the same line, connects and is combined as a whole.
9, the skeletal material drying device of pitch as claimed in claim 2 batching plant, it is characterized in that, described going barrel has first going barrel of dry heat regeneration aggregate and second going barrel of the new aggregate of dry heat, described first, second going barrel is driven in rotation independently of each other mutually along the axis direction arranged in series.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000145497A JP2001323408A (en) | 2000-05-17 | 2000-05-17 | Aggregate drying apparatus of asphalt plant |
| JP145497/00 | 2000-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1380920A true CN1380920A (en) | 2002-11-20 |
Family
ID=18651996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01801303A Pending CN1380920A (en) | 2000-05-17 | 2001-05-15 | Aggregate dryer for asphalt plant |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2001323408A (en) |
| KR (1) | KR20020019536A (en) |
| CN (1) | CN1380920A (en) |
| TW (1) | TW482884B (en) |
| WO (1) | WO2001088272A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128542A (en) * | 2011-04-18 | 2011-07-20 | 深圳市圳驰科技有限公司 | Device and method for refluxing and drying wet aggregate in production process of dry-mixed mortar |
| CN102472023A (en) * | 2009-07-09 | 2012-05-23 | 安曼意大利股份公司 | Rotary drier for plants for the production of bituminous macadams with the use of recycled materials |
| CN102472022A (en) * | 2009-07-09 | 2012-05-23 | 安曼意大利股份公司 | Drying cylinder of the type for plants for the production of bituminous macadams |
| CN104499404A (en) * | 2014-12-18 | 2015-04-08 | 无锡华中科技有限公司 | Dry drum mechanism with retaining wheel |
| CN106012757A (en) * | 2015-03-25 | 2016-10-12 | 日工株式会社 | Dryer for asphalt production device |
| CN106012762A (en) * | 2016-06-30 | 2016-10-12 | 长治县玉通机械设备有限公司 | Asphalt pavement material regeneration method based on vertical heating and tail gas recovery for supporting combustion and regeneration device |
| CN115077221A (en) * | 2022-06-10 | 2022-09-20 | 樊文华 | Ore raw materials safety drying equipment that ore processing was used |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4677255B2 (en) * | 2005-03-11 | 2011-04-27 | 日工株式会社 | Asphalt recycle plant |
| JP4724466B2 (en) * | 2005-05-27 | 2011-07-13 | 日工株式会社 | Asphalt plant dryer |
| JP4741361B2 (en) * | 2005-12-15 | 2011-08-03 | 株式会社Ｎｉｐｐｏ | Recycling dryer |
| KR100703615B1 (en) * | 2006-05-10 | 2007-04-09 | 주식회사 티비엠 | Regeneration device of waste ascon |
| CN110205902B (en) * | 2019-07-16 | 2024-03-08 | 四川瑞欣供应链管理集团有限公司 | Anti-sticking type counter-flow type thermal regeneration drying roller |
| FR3099496B1 (en) * | 2019-07-31 | 2021-08-20 | Total Marketing Services | Drying device and coating plant comprising such a drying device |
| CN114294918A (en) * | 2021-12-31 | 2022-04-08 | 覃建婷 | Energy-saving and environment-friendly drying system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01315502A (en) * | 1988-06-14 | 1989-12-20 | Nikko Co Ltd | Dryer for asphalt plant |
| US5664882A (en) * | 1996-04-04 | 1997-09-09 | Cedarapids, Inc. | System for concurrently remediating contaminated soil and producing hot mix asphalt |
| JP2001020212A (en) * | 1999-07-12 | 2001-01-23 | Niigata Eng Co Ltd | Dryer for asphalt plant |
-
2000
- 2000-05-17 JP JP2000145497A patent/JP2001323408A/en active Pending
-
2001
- 2001-05-15 CN CN01801303A patent/CN1380920A/en active Pending
- 2001-05-15 WO PCT/JP2001/004009 patent/WO2001088272A1/en active Application Filing
- 2001-05-15 KR KR1020027000655A patent/KR20020019536A/en not_active Application Discontinuation
- 2001-05-17 TW TW090111810A patent/TW482884B/en active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472023A (en) * | 2009-07-09 | 2012-05-23 | 安曼意大利股份公司 | Rotary drier for plants for the production of bituminous macadams with the use of recycled materials |
| CN102472022A (en) * | 2009-07-09 | 2012-05-23 | 安曼意大利股份公司 | Drying cylinder of the type for plants for the production of bituminous macadams |
| CN102472023B (en) * | 2009-07-09 | 2014-07-02 | 安曼意大利股份公司 | Rotary drier for plants for the production of bituminous macadams with the use of recycled materials |
| CN102472022B (en) * | 2009-07-09 | 2014-07-16 | 安曼意大利股份公司 | Drying cylinder of the type for plants for the production of bituminous macadams |
| US8993932B2 (en) | 2009-07-09 | 2015-03-31 | Ammann Italy S.P.A. | Rotary drier for plants for the production of bituminous macadams with the use of recycled materials |
| CN102128542A (en) * | 2011-04-18 | 2011-07-20 | 深圳市圳驰科技有限公司 | Device and method for refluxing and drying wet aggregate in production process of dry-mixed mortar |
| CN104499404A (en) * | 2014-12-18 | 2015-04-08 | 无锡华中科技有限公司 | Dry drum mechanism with retaining wheel |
| CN106012757A (en) * | 2015-03-25 | 2016-10-12 | 日工株式会社 | Dryer for asphalt production device |
| CN106012762A (en) * | 2016-06-30 | 2016-10-12 | 长治县玉通机械设备有限公司 | Asphalt pavement material regeneration method based on vertical heating and tail gas recovery for supporting combustion and regeneration device |
| CN106012762B (en) * | 2016-06-30 | 2018-05-18 | 长治县玉通机械设备有限公司 | Based on vertical heating and tail gas recycle combustion-supporting asphalt pavement material renovation process and device |
| CN115077221A (en) * | 2022-06-10 | 2022-09-20 | 樊文华 | Ore raw materials safety drying equipment that ore processing was used |
Also Published As
| Publication number | Publication date |
|---|---|
| TW482884B (en) | 2002-04-11 |
| JP2001323408A (en) | 2001-11-22 |
| KR20020019536A (en) | 2002-03-12 |
| WO2001088272A1 (en) | 2001-11-22 |
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