Former regeneration integral type of pitch stoving section of thick bamboo
Technical Field
The utility model relates to a pitch stirring technical field, specific former regeneration integral type stoving section of thick bamboo of pitch that says so.
Background
In asphalt mixing equipment, a drying device occupies a very important position, and the flame of the conventional drying device is in direct contact with aggregate in the drying process, so that the aggregate is burnt, and the aggregate is possibly heated and aged to influence the normal production. Moreover, in order to avoid the danger caused by the burning of the asphalt in the reclaimed materials, the equipment can not realize drying and heating on the reclaimed materials, and only can dry and heat the raw materials.
However, in the reconstruction and renovation of old asphalt roads, reclaimed materials produced after milling of old asphalt roads contain a mixture of stones, asphalt, and the like of various specifications. The waste reclaimed materials are wasted, pollute the environment and cause economic loss. In order to recover reclaimed materials, some plant-mixed asphalt regeneration equipment is produced at the same time, and the plant-mixed asphalt regeneration equipment mostly adopts a double-roller structure form, so that the structure is complicated, the cost is high, the drying efficiency is low, and the quality is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a former regeneration integral type stoving section of thick bamboo of pitch is provided, can not only dry the former raw material of heating, can also dry the former raw material and the milling and planing material that the heating mixes with certain proportion, the drying process in the aggregate not with flame direct contact, drying efficiency improves greatly when protecting the aggregate.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model discloses a barrel that the slope set up, the one end of barrel is equipped with the feed inlet, and the other end is equipped with discharge gate, its characterized in that: the barrel inner wall evenly is equipped with the defeated material unit that annular distribution, intercommunication each other, is equipped with the feeding district, the zone of heating, stirring district, combustion area and the ejection of compact district that communicate each other in proper order between feed inlet to the discharge gate, defeated material unit is including fixed guide unit, the fixed flitch of scraping that sets up in the zone of heating and the fixed constitutional unit that sets up in the stirring district of setting in feeding district, combustion area and ejection of compact district department, feed inlet, guide unit, scrape flitch, constitutional unit and discharge gate and communicate in proper order.
Further, the material guiding unit comprises a material guiding plate and a lead screw fixedly connected with the material guiding plate.
Furthermore, the guide plates comprise a first guide plate arranged in the feeding area, a second guide plate arranged in the combustion area and a third guide plate arranged in the discharging area, the guide plates are arranged on the inner wall of the barrel in a parallel and inclined mode, the feeding port is communicated with the scraping plate through the first guide plate, and the structural units are communicated with the discharging port sequentially through the second guide plate and the third guide plate.
Furthermore, the included angle between the material guide plate and the horizontal plane is 20-40 degrees.
Furthermore, the section of the scraping plate is a semicircular open slot.
Furthermore, the structural unit comprises a fourth guide plate and a lead screw, wherein the fourth guide plate is arranged in a herringbone, step-shaped, parallel and inclined mode, and the lead screw is connected with the fourth guide plate.
Further, it is characterized in that: the combustion area is internally provided with a fire gathering ring which is coincided with the central shaft of the cylinder body, and the diameter of the fire gathering ring is smaller than that of the cylinder body.
Further, it is characterized in that: the included angle between the cylinder and the horizontal plane is 3-5 degrees.
Since the technical scheme is used, the utility model discloses the beneficial effect who gains is:
the utility model discloses simple structure, modern design can dry alone, heat native material, also can add the milling of certain proportion at native material and dig the material. After the milling material is added, the asphalt waste gas in the reclaimed material can be combusted again under the action of the combustion chamber, so that the energy is saved, the consumption is reduced, the production cost is greatly reduced, and the produced asphalt mixture is more accurate in gradation and more reliable in quality.
The utility model discloses a counter-flow type heating method, in the stoving heating process, the even controllability of temperature is high, can reach the arbitrary temperature that the user needs, and the aggregate not with flame direct contact, like this, not only play the effect of effective protection aggregate, still can avoid the aggregate to be heated ageing, the quality of finished product material is more guaranteed, the drying efficiency of aggregate improves greatly.
Drawings
FIG. 1 is a schematic view of the internal cross-section of the present invention;
FIG. 2 is a schematic cross-sectional side view of a heating zone of the present invention;
fig. 3 is a schematic top view of the structural unit of the present invention.
Wherein, 1, a discharge hole; 2. a third material guide plate; 3. a discharge zone; 4. a second material guide plate; 5. a combustion zone; 6. a fire gathering ring; 7. a stirring zone; 8. a structural unit; 9. a scraping plate; 10. a barrel; 11. a heating zone; 12. a feed zone; 13. a lead screw; 14. a discharge port; 15. a first material guide plate; 16. a material guiding unit; 17. and a fourth material guide plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
an integrated drying cylinder for original asphalt regeneration is shown in figures 1-3 and comprises a cylinder body 10 which is obliquely arranged, wherein an included angle between the cylinder body 10 and a horizontal plane is 3-5 degrees, so that aggregates are conveniently conveyed in the cylinder body 10. The aggregate can be selected from original raw materials, or a mixture of the original raw materials and the reclaimed materials with a ratio of not more than 3:1 is fed into the cylinder 10 to be dried and heated. When the mixture after 25% of milled material is added into the original raw material, the production cost of each ton of asphalt concrete can be reduced by about 100 yuan, so that the milled reclaimed material can be recycled, the waste is changed into valuable, the production cost is reduced, and a certain effect on improving the surrounding environment is achieved.
The aggregate enters the cylinder 10 from the feed inlet 14 at one end of the cylinder 10, is heated and stirred in the cylinder 10, is discharged from the discharge outlet 1 at the other end of the cylinder 10 after meeting the requirement, and enters the next procedure.
The inner wall of barrel 10 evenly is equipped with the defeated material unit that annular distribution, intercommunication each other, defeated material unit carries discharge gate 1 with the aggregate from the feed inlet 14 of barrel 10, is equipped with the feeding district 12, the zone of heating 11, stirring district 7, combustion area 5 and the ejection of compact district 3 of intercommunication each other in proper order in the barrel 10 between feed inlet 14 to discharge gate 1, feeding district 12 and feed inlet 14 intercommunication, ejection of compact district 3 and discharge gate 1 intercommunication.
The material conveying unit comprises a material guiding unit 16, a material scraping plate 9 and a structural unit 8, wherein the material guiding unit 16 is fixedly arranged at the feeding area 12, the combustion area 5 and the discharging area 3, the material scraping plate 9 is fixedly arranged at the heating area 11, the structural unit 8 is fixedly arranged at the stirring area 7, and the feeding hole 14, the material guiding unit 16, the material scraping plate 9, the structural unit 8 and the discharging hole 1 are sequentially communicated. The material guide unit 16 can convey aggregates from the feeding hole 14 to the heating region 11 through the feeding region 12, and the aggregates at the stirring region 7 are conveyed to the discharging hole 1 after sequentially passing through the combustion region 5 and the discharging region 3; the aggregates in the feeding area 12 are sent into the stirring area 7 through the scraper plate 9 of the heating area 11, and are fully stirred and mixed under the action of the structural unit 8 at the stirring area 7, and then are sent into the material guiding unit 16 of the combustion area 5.
As shown in fig. 1, the material guiding unit 16 includes material guiding plates and a screw 13 fixedly connected to the material guiding plates, an included angle between the material guiding plates and a horizontal plane is 20-40 degrees, a plurality of groups of parallel and inclined material guiding plates are fixedly connected by the screw 13 to form a material guiding unit 16, and the material guiding units 16 are uniformly distributed on the inner walls of the cylinders 10 of the feeding zone 12, the combustion zone 5 and the discharging zone 3 in an annular and step-like manner to transport aggregates. The inclined arrangement of the material guide plate is beneficial to the aggregate to slide down along the inclined direction of the material guide plate under the action of gravity, and in the working process, the cylinder body 10 rotates at a designed constant speed, so that the aggregate is conveniently conveyed along the direction of the material guide plate under the action of gravity.
The material guide plates comprise a first material guide plate 15 arranged in the feeding area 12, a second material guide plate 4 arranged in the combustion area 5 and a third material guide plate 2 arranged in the discharging area 3, the material guide plates are arranged on the inner wall of the barrel 10 in a parallel and inclined mode, the feeding port 14 is communicated with the scraping plate 9 through the first material guide plate 15, and the structural unit 8 is communicated with the discharging port 1 sequentially through the second material guide plate 4 and the third material guide plate 2.
As shown in fig. 1 and 2, the scraper 9 has an open slot with a semicircular cross section, is made of steel material with special material, and is durable. The scraping plates 9 are uniformly distributed on the inner wall of the cylinder 10 of the heating area 11 in the cylinder 10 in an annular array mode, aggregates in the scraping plates 9 are rotated to the top from the bottom under the action of centrifugal force along with the rotation of the cylinder 10 and are rotated to the bottom from the top, the aggregates are lifted and freely scattered in the heating area 11 for multiple times, in the process, the aggregates rise to the top and fall under the action of gravity, and a material curtain is formed in the falling process of the aggregates. The scraping plate 9 is set to be in a semicircular shape in cross section, aggregates can fall and be thrown more easily, the circumferences of the aggregates in the cylinder 10 in the falling process can be thrown, the aggregates can fall uniformly in the throwing process, the whole cylinder 10 is seen like a water curtain hole from the side, the contact area of the falling aggregates in the cylinder 10 and the thermal radiation of flame in the fire gathering ring 6 can be increased sufficiently, the heat efficiency is improved, and energy is saved. In the heating process, asphalt in the reclaimed material is heated and softened, and water is evaporated.
As shown in fig. 1 and 3, the structural unit 8 includes a fourth guide plate 17 arranged in a herringbone, stepped, parallel, inclined manner and a lead screw 13 connected to the fourth guide plate 17. The even annular array of constitutional unit 8 distributes at the inner wall of stirring 7 barrel 10 in district, the aggregate that falls to heating zone 11 bottom is sent into constitutional unit 8 through scraping flitch 9, mix along the transport of fourth stock guide 17 in constitutional unit 8, the in-process of mixing, pitch in the aggregate is heated and softened in heating zone 11, water evaporation, the pitch that is softened like this and primary material intensive mixing, can wrap up in the thin pitch of one deck on the raw material, also can be stained with a layer of mountain flour on the reclaimed material, and, this kind of mixture can not bond on follow-up lifting machine or screen cloth.
The fuel is fully combusted in the combustion zone 5, as shown in fig. 1, a fire gathering ring 6 which is coincident with the central axis of the cylinder 10 is arranged in the combustion zone 5, the diameter of the fire gathering ring 6 is smaller than that of the cylinder 10, and the fire gathering ring 6 is arranged at the center of the cylinder 10. The fire inlet end of the fire gathering ring 6 is connected with the fire outlet end of the burner, flame burns in the fire gathering ring 6, conveyed aggregate is conveyed between the fire gathering ring 6 and the cylinder 10 along the material guide unit 16 on the inner wall of the cylinder 10, the aggregate can be lifted and attached to the inner wall of the cylinder 10 to move forwards in the process of moving forwards, and meanwhile, the purpose of reheating the aggregate in the cylinder 10 can be achieved. The fire gathering ring 6 can reduce the loss of incomplete combustion caused by the collision of fuel oil drops by aggregates. And the direct contact between burning flame and aggregate can be effectively prevented, and the aggregate is protected and prevented from aging, so that the quality of finished products is improved, and the ecological environment is better maintained.
The fire gathering ring 6 is made of steel made of special materials and is high-temperature resistant. The inner wall of the cylinder 10 of the combustion area 5 is also provided with a material guide unit 16 for conveying aggregate, and in the process of conveying the aggregate on the second material guide plate 4, the aggregate cannot be directly heated near the flame, so that the reclaimed materials can be effectively prevented from thermal shock. Meanwhile, the waste gas of the asphalt in the reclaimed materials near the fire gathering ring 6 can be combusted again, and the pollution of the waste gas can be effectively reduced.
In the working process, aggregate is fed into the barrel 10 from the feeding hole 14 and is conveyed forwards along the inner wall of the barrel 10, meanwhile, flame generated by fuel combustion in the combustor is fed into the barrel 10 from the direction of the discharging hole 1 and is combusted in the fire gathering ring 6, the aggregate fed into the barrel 10 is heated in a counter-current mode, and the reclaimed material and the virgin material after the aggregate is heated by radiation in the heating area 11 are fully stirred and mixed in the stirring area 7. The surface of the mixed raw aggregate is wrapped with a layer of thin asphalt, and the surface of the reclaimed aggregate is wrapped with a layer of stone powder. Then the mixture is discharged from the discharge port 1 under the action of the material guide units 16 in the combustion zone 5 and the discharge zone 3.
Finally, it should be noted that: the above examples are merely illustrative for the clarity of the present invention and are in no way intended to limit the scope of the invention. It will be apparent to those skilled in the art that many more modifications and variations than mentioned above are possible in light of the above teaching, and it is not intended to be exhaustive or to limit the invention to the precise form disclosed.