CN211815355U - Hot regeneration facility of plantmix of function is added to area cold - Google Patents
Hot regeneration facility of plantmix of function is added to area cold Download PDFInfo
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- CN211815355U CN211815355U CN202020342851.5U CN202020342851U CN211815355U CN 211815355 U CN211815355 U CN 211815355U CN 202020342851 U CN202020342851 U CN 202020342851U CN 211815355 U CN211815355 U CN 211815355U
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Abstract
A hot plant mixing regeneration device with a cold adding function comprises a coarse aggregate conveying system, a coarse aggregate drying and heating system, a fine aggregate conveying system and a regenerated aggregate conveying device, wherein the coarse aggregate drying and heating system comprises a regeneration drying roller, a combustion device and a tail gas treatment device; the fine aggregate conveying system comprises a fine aggregate bin, a fine aggregate belt conveyor, a fine aggregate elevator and a fine aggregate conveying device, a fine aggregate temporary storage bin is arranged at the discharge end of the fine aggregate conveying device, a metering scale is arranged below the fine aggregate temporary storage bin and the coarse aggregate temporary storage bin, and a reclaimed material conveying device is arranged below the metering scale. The utility model discloses can realize thick, the thin separately transport and the heating of gathering materials, reduce adhesion degree such as regeneration drying roller, reduce the risk that equipment shut down, guarantee the performance of equipment.
Description
Technical Field
The utility model relates to a hot regeneration facility technical field of bituminous mixture, specific saying so indicates a hot regeneration facility of plantmix of function is added to cold in area.
Background
The thermal regeneration technology of the asphalt mixture is a technology for recycling the waste asphalt mixture. In the existing plant mixing hot recycling technology, cold waste asphalt mixtures with various grades are simultaneously sent into a drying and heating system for drying and heating treatment, and then are mixed with new aggregates, asphalt, mineral powder and the like in a certain proportion, and finally qualified finished asphalt mixture materials are produced. However, the plant mixing heat regeneration method has the following problems:
1. coarse and fine aggregates in the waste asphalt mixture enter the drying roller to be heated at the same time, so that the heating uniformity of the coarse and fine aggregates is difficult to ensure, the fine aggregates are easier to be heated than the coarse aggregates in the same environment, and the temperature of the fine aggregates is easy to be ultrahigh in the heating process, so that the asphalt on the surface of the fine aggregates is seriously aged. Because the proportion of the asphalt content in the fine aggregate to the waste asphalt mixture is large, once the asphalt in the fine aggregate has an aging problem, the quality of the waste asphalt mixture is greatly reduced, and the quality of finished products is influenced finally.
2. Since the asphalt content in the fine aggregate is higher than that of the coarse aggregate, the fine aggregate in the waste asphalt mixture is the largest factor for adhering to the plant-mixed thermal regeneration equipment. After the fine aggregate is heated, asphalt on the surface of the fine aggregate is easily molten, and the asphalt on the surface of the fine aggregate is easily adhered to parts such as a drying roller, a temporary storage bin, a metering scale, a device for conveying to primary equipment and the like along with the increase of the temperature of the surface of the fine aggregate in the operation process of the plant-mixed hot recycling equipment. Through the production operation of a period of time, it is serious to appear the cylinder sizing easily, leads to the equipment productivity to reduce, and the bin of keeping in temporarily, the blowing door of weigher can't be opened, directly leads to the unable normal operating scheduling problem of equipment.
Disclosure of Invention
The utility model provides a cold hot regeneration facility of plantmix who adds function in area, its main aim at solve current plantmix hot regeneration and get into the heating of drying drum with old and useless bituminous mixture simultaneously, and the pitch that leads to the thin material surface is ageing serious, and the pitch on thin aggregate surface very easily adheres to and causes shortcomings such as unable normal operating of equipment at positions such as drying drum.
The utility model adopts the following technical scheme:
the utility model provides a cold hot regeneration facility of plantmix who adds function in area, includes coarse aggregate conveying system, coarse aggregate stoving heating system, coarse aggregate temporary storage storehouse and reclaimed material conveyor, coarse aggregate stoving heating system includes regeneration drying roller, burner and tail gas processing apparatus, regeneration drying roller slope sets up, coarse aggregate conveying system's end-to-end connection to regeneration drying roller's high level, regeneration drying roller's high level still is connected with tail gas processing apparatus, burner locates regeneration drying roller's low level, this regeneration drying roller's low level with be equipped with a workbin between the burner, the workbin below is connected coarse aggregate temporary storage storehouse, this plantmix hot regeneration facility still includes fine aggregate conveying system and fine aggregate storage storehouse, fine aggregate conveying system includes fine aggregate storehouse, temporary storage storehouse, Fine aggregate band conveyer, fine aggregate lifting machine and fine aggregate conveyor, fine aggregate band conveyer's feed end is located the below of fine aggregate storehouse, this fine aggregate band conveyer's discharge end with the feed end butt joint of fine aggregate lifting machine, the discharge end of fine aggregate lifting machine is connected to fine aggregate conveyor, this fine aggregate conveyor's discharge end correspondence is equipped with a fine aggregate temporary storage bin, fine aggregate temporary storage bin with the below in coarse aggregate temporary storage bin is equipped with the weigher, the weigher below is equipped with carry the reclaimed material to primary drying equipment in the reclaimer conveyor.
Specifically, above-mentioned tail gas processing apparatus includes one-level settling chamber, one-level pipeline, second grade settling chamber, smoke exhaust fan and second grade pipeline of discharging fume, the one-level settling chamber connect in regeneration drying roller's high level, the bottom of this one-level settling chamber is connected to through a row of grey screw conveyer in the fine aggregate conveyor, the top is passed through the one-level pipeline of discharging fume connects the second grade settling chamber, the bottom of second grade settling chamber is connected to through the ash discharge pipe the fine aggregate lifting machine, the side of second grade settling chamber is equipped with smoke exhaust fan, the air outlet of this smoke exhaust fan connect one with the tail gas send to primary drying roller the second grade pipeline of discharging fume.
Furthermore, the primary smoke exhaust pipeline is communicated with a preheating pipeline which is wrapped outside the fine aggregate conveying device.
Furthermore, the side surface of the secondary settling chamber is also provided with a return air fan, and the outlet of the return air fan is connected into the combustion device through a return air pipeline.
Preferably, the combustion device comprises a combustor and a combustion hearth, one end of the combustion hearth is in butt joint with the discharge box, the other end of the combustion hearth is provided with the combustor, and the air return pipeline is connected to the combustion hearth provided with one end of the combustor.
Further, the coarse aggregate temporary storage bin and the fine aggregate temporary storage bin are fixed together to form a double-layer temporary storage bin.
Further, above-mentioned coarse aggregate conveying system includes coarse aggregate storehouse, coarse aggregate band conveyer and coarse aggregate lifting machine, coarse aggregate band conveyer's feed end is located the below of coarse aggregate storehouse, this coarse aggregate band conveyer's discharge end with the feed end butt joint of coarse aggregate lifting machine, coarse aggregate lifting machine's discharge end is connected to through an unloading pipeline the high level of regeneration drying drum.
It is right from the above description that the utility model discloses the description of structure compares with prior art, the beneficial effect that the utility model discloses produce lies in:
1. the utility model discloses can realize thick, the thin separately transport and the heating of gathering materials, reduce regeneration drying roller, temporary storage storehouse, weigher, reclaimed material conveyor's adhesion degree, reduce the risk that equipment shut down effectively to guarantee equipment performance, prolonged the life of equipment. The utility model discloses a will cool add the function integration in current hot regenerating unit of plantmix inside, compact structure, the installation is maintained conveniently.
2. The utility model discloses introduce the conveyor that gathers materials with tail gas, realize the indirect gentle heating of thin material, not only can utilize residual heat, reduce heat loss, can effectually ensure in addition that the thin material is not ageing in the heating process, the effectual quality of pitch in the thin material that gathers materials of having guaranteed to guarantee the quality of finished product material.
3. The utility model discloses can filter the thin material recovery recycling that subsides and get off in one-level deposit room, the second grade deposit room, reduce solid particle and externally discharge to the pollution that causes the environment has been reduced.
4. Through the respective metering of the coarse aggregate and the fine aggregate, the grading precision of the coarse aggregate and the fine aggregate can be greatly improved, and particularly, the grading control requirement of the fine aggregate is met, so that the grading requirement of finished materials is ensured. When the requirement on the addition proportion of the reclaimed materials is low, the cold addition function can be realized by conveying the fine aggregate independently, and the use is flexible and convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details.
A plant-mixing hot recycling device with a cold adding function refers to fig. 1 and comprises a coarse aggregate conveying system, a fine aggregate conveying system, a coarse aggregate drying and heating system, a metering scale 40 and a recycled material conveying device 50. The coarse aggregate conveying system comprises a coarse aggregate bin 11, a coarse aggregate belt conveyor 12 and a coarse aggregate hoister 13, the feeding end of the coarse aggregate belt conveyor 12 is arranged below the coarse aggregate bin 11, the discharging end of the coarse aggregate belt conveyor 12 is in butt joint with the feeding end of the coarse aggregate hoister 13, and the discharging end of the coarse aggregate hoister 13 is connected to a coarse aggregate drying and heating system through an unloading pipeline 14.
Referring to fig. 1, the fine aggregate conveying system comprises a fine aggregate bin 21, a fine aggregate belt conveyor 22, a fine aggregate elevator 23 and a fine aggregate conveying device 24, wherein the feeding end of the fine aggregate belt conveyor 22 is arranged below the fine aggregate bin 21, the discharging end of the fine aggregate belt conveyor 22 is butted with the feeding end of the fine aggregate elevator 23, and the discharging end of the fine aggregate elevator 23 is connected to the fine aggregate conveying device 24.
Referring to fig. 1, coarse aggregate drying and heating system includes regeneration drying roller 31, burner and tail gas processing apparatus, and regeneration drying roller slope 31 sets up, and the end-to-end connection of above-mentioned unloading pipeline 14 is to regeneration drying roller 31's high level, regeneration drying roller 31's high level still is connected with tail gas processing apparatus, burner locates regeneration drying roller 31's low level, this regeneration drying roller 31's low level with be equipped with a play workbin 311 between the burner, go out workbin 311 below and connect a coarse aggregate temporary storage bin 35. The combustion device comprises a combustor 321 and a combustion hearth 322, one end of the combustion hearth 322 is in butt joint with the discharge box 311, and the other end of the combustion hearth is provided with the combustor 321.
Referring to fig. 1, the fine aggregate conveying device 24 is disposed below the regenerative drying drum 31, a fine aggregate temporary storage bin 25 is correspondingly disposed at a discharge end of the fine aggregate conveying device 24, and the fine aggregate temporary storage bin 25 and the coarse aggregate temporary storage bin 35 of the embodiment are fixed together to form a double-layer temporary storage bin structure. The metering scale 40 is arranged below the fine aggregate temporary storage bin 25 and the coarse aggregate temporary storage bin 35, and the reclaimed material conveying device 50 is arranged below the metering scale 40 so as to convey reclaimed materials into the primary drying equipment.
Referring to fig. 1, the above-mentioned tail gas processing apparatus includes a first-stage settling chamber 331, a first-stage smoke exhaust pipeline 332, a second-stage settling chamber 333, a smoke exhaust fan 334 and a second-stage smoke exhaust pipeline 335, the first-stage settling chamber 331 is connected to the high position of the regenerative drying drum 31, the above-mentioned blanking pipeline 14 is arranged in the first-stage settling chamber 331, the bottom of the first-stage settling chamber 331 is connected to the fine aggregate conveying apparatus 24 through a dust exhaust screw 3311, the top is connected to the second-stage settling chamber 333 through the first-stage smoke exhaust pipeline 332, the bottom of the second-stage settling chamber 333 is connected to the fine aggregate elevator 23 through a dust exhaust pipe 3331, the side of the second-stage settling chamber 333 is provided with the smoke exhaust fan 334, and the air outlet of the smoke exhaust fan 334 is.
Referring to fig. 1, the primary flue gas exhaust duct 332 is connected to a preheating duct 3321 which is wrapped outside the fine aggregate conveyor 24. The secondary settling chamber 333 is further provided at a side thereof with a return air blower 336, and an outlet of the return air blower 336 is connected to the combustion chamber 322 provided with an end of the burner 321 through a return air pipe 337.
The production method of the plant mixing hot recycling equipment with the cold adding function comprises the following steps:
(1) the coarse aggregates in the waste asphalt mixture are sent into a regenerative drying roller through a coarse aggregate conveying system, dried, heated and stored in a coarse aggregate temporary storage bin, and the fine aggregates are sent into a fine aggregate temporary storage bin through a fine aggregate conveying system;
(2) the tail gas particles generated by heating the regenerative drying roller are settled and accumulated in the primary settling chamber and the secondary settling chamber and are respectively sent into the fine aggregate conveying device and the fine aggregate elevator through the ash discharge screw machine and the ash discharge pipe;
(3) and according to the requirement during production, the coarse materials and the fine materials are respectively accumulated and weighed through the metering scale, and the weighed waste asphalt mixture is sent into the primary drying equipment for use through the reclaimed material conveying device.
The tail gas discharged by the regeneration drying roller enters the combustion device for secondary combustion through the air return fan and the air return pipeline, the other part of the tail gas is sent to the primary drying equipment for secondary combustion, and finally the tail gas is discharged after being treated by the primary bag-type dust collector.
And the tail gas enters a preheating pipeline to indirectly and mildly heat the fine aggregate in the fine aggregate conveying device.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (7)
1. The utility model provides a cold hot regeneration facility of plantmix who adds function in area, includes coarse aggregate conveying system, coarse aggregate stoving heating system, coarse aggregate temporary storage storehouse and reclaimed material conveyor, coarse aggregate stoving heating system includes regeneration drying drum, burner and tail gas processing apparatus, regeneration drying drum slope sets up, coarse aggregate conveying system's end-to-end connection to regeneration drying drum's high level, regeneration drying drum's high level still is connected with tail gas processing apparatus, burner locates regeneration drying drum's low level, this regeneration drying drum's low level with be equipped with a play workbin between the burner, go out the workbin below and connect coarse aggregate temporary storage storehouse, its characterized in that: still include fine aggregate conveying system and fine aggregate temporary storage bin, fine aggregate conveying system includes fine aggregate storehouse, fine aggregate band conveyer, fine aggregate lifting machine and fine aggregate conveyor, fine aggregate band conveyer's feed end is located the below of fine aggregate storehouse, this fine aggregate band conveyer's discharge end with the feed end butt joint of fine aggregate lifting machine, the discharge end of fine aggregate lifting machine is connected to fine aggregate conveyor, this fine aggregate conveyor's discharge end correspondence is equipped with a fine aggregate temporary storage bin, fine aggregate temporary storage bin with coarse aggregate temporary storage bin's below is equipped with the weigher, the weigher below is equipped with carries the reclaimed material to primary drying equipment in the reclaimed material conveyor.
2. The plant-mixed hot recycling device with cold addition function as claimed in claim 1, characterized in that: tail gas processing apparatus includes that one-level deposit room, one-level discharge fume pipe way, second grade deposit room, smoke exhaust fan and second grade discharge fume the pipeline, the one-level deposit room connect in regeneration drying roller's high level, the bottom of this one-level deposit room is connected to through a row of grey screw conveyer in the fine aggregate conveyor, the top is passed through the one-level discharge fume the pipe connection the second grade deposit room, the bottom of second grade deposit room is connected to through row ash pipe the fine aggregate lifting machine, the side of second grade deposit room is equipped with smoke exhaust fan, the air outlet of this smoke exhaust fan connect one with the tail gas send to primary drying roller the second grade discharge fume pipe way.
3. The plant-mixed hot recycling device with cold addition function as claimed in claim 2, characterized in that: the primary smoke exhaust pipeline is communicated with a preheating pipeline wrapped outside the fine aggregate conveying device.
4. The plant-mixed hot recycling device with cold addition function as claimed in claim 3, characterized in that: and the side surface of the secondary settling chamber is also provided with a return air fan, and the outlet of the return air fan is connected into the combustion device through a return air pipeline.
5. The plant-mixed hot recycling device with cold addition function as claimed in claim 4, characterized in that: the combustion device comprises a combustor and a combustion hearth, one end of the combustion hearth is in butt joint with the discharge box, the other end of the combustion hearth is provided with the combustor, and the air return pipeline is connected to the combustion hearth provided with one end of the combustor.
6. The plant-mixed hot recycling device with cold addition function as claimed in claim 1, characterized in that: the coarse aggregate temporary storage bin and the fine aggregate temporary storage bin are fixed together to form a double-layer temporary storage bin.
7. The plant-mixed hot recycling device with cold addition function as claimed in claim 1, characterized in that: the coarse aggregate conveying system comprises a coarse aggregate bin, a coarse aggregate belt conveyor and a coarse aggregate hoister, wherein the feeding end of the coarse aggregate belt conveyor is arranged below the coarse aggregate bin, the discharging end of the coarse aggregate belt conveyor is in butt joint with the feeding end of the coarse aggregate hoister, and the discharging end of the coarse aggregate hoister is connected to the high position of the regenerative drying roller through a discharging pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342851.5U CN211815355U (en) | 2020-03-18 | 2020-03-18 | Hot regeneration facility of plantmix of function is added to area cold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342851.5U CN211815355U (en) | 2020-03-18 | 2020-03-18 | Hot regeneration facility of plantmix of function is added to area cold |
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| Publication Number | Publication Date |
|---|---|
| CN211815355U true CN211815355U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020342851.5U Active CN211815355U (en) | 2020-03-18 | 2020-03-18 | Hot regeneration facility of plantmix of function is added to area cold |
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| Country | Link |
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| CN (1) | CN211815355U (en) |
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- 2020-03-18 CN CN202020342851.5U patent/CN211815355U/en active Active
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