CN211772579U - Double-layer split-flow type drying drum - Google Patents

Abstract

The utility model discloses a double-deck shunting stoving section of thick bamboo relates to asphalt concrete production technical field, including support and barrel, be provided with heating device on the barrel, the barrel is including interior barrel and outer barrel, and interior barrel and outer barrel are formed with the intermediate layer, and the intermediate layer is separated for the new aggregate zone of heating and the reclaimed materials zone of heating. The inner cylinder body is communicated with the outer cylinder body, and a regenerated material discharge port and a new aggregate discharge port are formed on the outer cylinder body. The heating device sprays flame towards the inner cylinder body to heat materials in the inner cylinder body, and heated hot air in the inner cylinder body can enter the outer cylinder body to be heated and insulated. The new aggregate after the heating and the interior intermediate layer between barrel and the outer barrel of unheated reclaimed materials entering to the purpose of the waste heat heating reclaimed materials that the barrel gived off in reaching the utilization, and the mode that adopts double-deck single cylinder heating compares in the mode of two traditional section of thick bamboo heating, is favorable to reducing the heat loss, has reduced the temperature of a stoving section of thick bamboo, improves life.

Description

Double-layer split-flow type drying drum

Technical Field

The utility model belongs to the technical field of the asphalt concrete production technique and specifically relates to a double-deck shunting stoving section of thick bamboo is related to.

Background

The asphalt concrete, also called as asphalt concrete, is a mixture of mineral aggregate, broken stone, stone dust and mineral powder, etc. which are artificially selected and have a certain gradation composition, and a certain proportion of road asphalt material, and is mixed under the condition of strict control.

The prior Chinese patent with the publication number of CN103277992B discloses aggregate drying equipment, which comprises a drying roller, wherein a heating device and a dust removing device are arranged on the drying roller; the drying roller comprises a support, an inner cylinder body and an outer cylinder body are rotatably arranged on the support, and a temporary storage bin for aggregate is formed between the inner cylinder body and the outer cylinder body. The heating device is connected with the drying roller and used for heating the aggregate in the inner barrel, and the temporary storage bin is communicated with the inner barrel; the aggregate heated by the heating device enters the temporary storage bin.

In the actual use process, the temperature of the outer wall of the inner cylinder body is very high, and the inner cylinder body not only exchanges heat with the ambient environment, but also exchanges heat with the temporary storage bin and materials in the temporary storage bin.

SUMMERY OF THE UTILITY MODEL

To the technical problem, an object of the utility model is to provide a double-deck shunting stoving section of thick bamboo, new aggregate after the heating and unheated reworked material get into in the intermediate layer between barrel and the outer barrel to the low temperature region and the independent ejection of compact of high temperature zone of corresponding barrel heat reworked material that gives off in order to reach the waste heat heating reworked material that the barrel gived off in utilizing.

In order to achieve the above purpose, the utility model provides a following technical scheme: the double-layer split-flow type drying cylinder comprises a support and a cylinder body obliquely and rotatably arranged on the support, wherein a heating device is arranged on the cylinder body, the cylinder body comprises an inner cylinder body and an outer cylinder body which are coaxially sleeved, an interlayer is formed by matching the inner cylinder body and the outer cylinder body, the inner cylinder body is communicated with the interlayer, a separating ring is coaxially clamped in the interlayer, the interlayer is divided into a new aggregate heating area and a reclaimed material heating area by the separating ring, and a first outer wing plate and a second outer wing plate which are used for stirring aggregates are respectively arranged on the outer wall of the inner cylinder body at the new aggregate heating area and the reclaimed material heating area; a new aggregate feeding hole is formed at one end, far away from the heating device, of the inner cylinder body, a regenerated aggregate feeding hole is formed at one end, far away from the new aggregate heating region, of the regenerated aggregate heating region of the outer cylinder body, a new aggregate discharging hole is formed at one end, far away from the regenerated aggregate heating region, of the new aggregate heating region of the inner cylinder body, the new aggregate discharging hole is communicated with the new aggregate heating region, a regenerated aggregate discharging hole and a new aggregate discharging hole are formed at positions, corresponding to the separating ring, of the outer cylinder body, and the regenerated aggregate discharging hole and the new aggregate discharging hole are respectively communicated with the new aggregate heating region and the regenerated aggregate heating region; the heating device sprays flame towards the inner space of the inner cylinder, the inner space of the inner cylinder is heated by the flame, a low-temperature area and a high-temperature area are formed, the low-temperature area and the new aggregate heating area are correspondingly arranged, and the high-temperature area and the reclaimed material heating area are correspondingly arranged.

Through adopting above-mentioned technical scheme, the new aggregate feed inlet of barrel drops into to interior barrel inside in via, and after barrel rotatory conveying and heating device burning heating in via again, enters into the stirring to the new aggregate zone of heating through the new aggregate discharge gate, via the ejection of compact of new aggregate discharge opening at last to accomplish the heating of new aggregate. The reclaimed materials are fed into the reclaimed material heating area through a reclaimed material feeding hole of the outer cylinder, the waste heat of the high-temperature area of the inner cylinder is transferred into the reclaimed material heating area to heat the reclaimed materials, and the heated reclaimed materials are discharged through a reclaimed material discharging hole, so that the heating of the reclaimed materials is completed. Because of the flame spraying position of the heating device, the new aggregate heating area and the regenerated material heating area respectively correspond to the low-temperature area and the high-temperature area of the inner cylinder body, the regenerated material in the interlayer is heated by utilizing the waste heat generated by heating the high-temperature area of the inner cylinder body by the heating device and the waste heat transmitted outwards by the inner cylinder body, and therefore the purpose of improving the heat utilization efficiency is achieved.

The utility model discloses further set up to: the new aggregate discharge port is uniformly arranged at the end part of the inner cylinder body along the circumferential direction of the inner cylinder body, the new aggregate discharge port is provided with a guide plate, and the guide plate guides the new aggregate to the new aggregate heating zone.

By adopting the technical scheme, the new aggregate heated by combustion can be uniformly discharged from the new aggregate discharge port into the new aggregate heating zone, and the problem of stacking below the new aggregate discharge port is solved by the arrangement of the material guide plate; the new aggregate discharge port is arranged in a mode of being combined with the material guide plate, so that the feeding uniformity and smoothness when new aggregates enter a new aggregate heating area are improved.

The utility model discloses further set up to: the first outer wing plate and the second outer wing plate are both arc-shaped plate pieces, and short V-shaped notches are formed in the outer edges of the first outer wing plate and the second outer wing plate.

Through adopting above-mentioned technical scheme, first outer pterygoid lamina and the outer pterygoid lamina of second play the effect of carrying the ejection of compact of new aggregate and reclaimed materials and the effect of evenly stirring new aggregate and reclaimed materials respectively, and the setting up of short V type opening does benefit to the dispersion homogeneity that improves new aggregate or reclaimed materials, can not disturb the normal transport operation of new aggregate or reclaimed materials simultaneously.

The utility model discloses further set up to: the separating ring is coaxially fixed on the inner wall of the outer cylinder body, a gap is formed between the separating ring and the inner cylinder body in a matching mode, and the width range value of the gap is 10-20 mm.

By adopting the technical scheme, dust or smoke and the like generated by stirring the reclaimed materials in the reclaimed material heating area can enter the new aggregate heating area through the gap and enter the inner cylinder body through the new aggregate discharge port for combustion, so that the aims of secondary combustion, dust removal, smoke removal and emission reduction are fulfilled; and the arrangement of the gap can not influence the normal transmission operation of the new aggregate or the reclaimed materials.

The utility model discloses further set up to: the novel aggregate feeding port is provided with an exhaust pipeline, a feeding pipeline penetrates through the exhaust pipeline, and a discharging port of the feeding pipeline extends into the inner bottom surface of the inner barrel through the exhaust pipeline.

By adopting the technical scheme, flue gas, dust and the like generated in the combustion heating process can be collected through the new aggregate feeding hole and the exhaust pipeline and then subjected to centralized treatment so as to reduce the pollution to the surrounding environment; and the feeding pipeline penetrates through the exhaust pipeline and extends into the inner bottom surface of the inner barrel body, so that the feeding operation and the dust and smoke removing operation of the new aggregate can be completed at the feeding port of the new aggregate at the same time, and the feeding pipeline and the exhaust pipeline are not influenced by each other.

The utility model discloses further set up to: the feeding pipeline comprises a feeding port and a conveying pipe extending from the feeding port to the inner cylinder, and a turning plate is arranged at the position where the feeding port is communicated with the conveying pipe.

Through adopting above-mentioned technical scheme, the setting of turning over the board had both been favorable to further blockking during flue gas dust discharges to external environment from charge-in pipeline department, was favorable to improving the homogeneity of charge-in pipeline feeding again.

The utility model discloses further set up to: the two ends of the inner cylinder body extend out of the outer cylinder body, the bracket is provided with a driving part, and the driving part is in transmission connection with the gear of the inner cylinder body; the both ends of interior barrel all are provided with elastic support assembly, elastic support assembly locates the axle collar of inner barrel body tip and presss from both sides the flexure strip of locating between the two including coaxial cover, just the axle collar rotates with the support and supports the cooperation.

Through adopting above-mentioned technical scheme, two elastic support subassemblies that constitute by flexure strip and axle collar cooperate and play the effect of buffering shock attenuation, and the axle collar is responsible for realizing the normal running fit with the support promptly, and the flexure strip plays main buffering shock attenuation operation. The elastic support components at the two ends of the inner cylinder body are matched to achieve the purpose of buffering and damping, and therefore the purpose of improving the stability of the cylinder body in rotating operation is achieved. The rotary operation of the barrel is realized by adopting a mode that the driving part drives the inner barrel to rotate through gear transmission, and then in the rotating process of the barrel, the elastic supporting parts at two ends of the barrel are matched to play a role in buffering the vibration generated by the inner barrel, the outer barrel and the driving part in the operating process.

The utility model discloses further set up to: the outer wall of the inner barrel is coaxially sleeved with a reinforcing ring in a riveting and fixing mode, and the elastic sheet is arranged on the reinforcing ring.

Through adopting above-mentioned technical scheme, the effect that the reinforcing ring played improvement flexure strip joint strength, elastic support subassembly structural strength, and then reaches the purpose that improves interior barrel rotation operation stability.

The utility model discloses further set up to: the inner wall of the inner cylinder body is provided with a crushing area, a mixing area and a heat radiation area from a new aggregate feeding hole to a new aggregate discharging hole, and the inner wall of the inner cylinder body in the crushing area, the mixing area and the heat radiation area is respectively provided with a tooth-shaped inner wing plate, a V-shaped inner wing plate and a tile-shaped inner wing plate.

Through adopting above-mentioned technical scheme, pterygoid lamina plays broken, mixed and heat reflection's effect respectively in pterygoid lamina, V type in the profile of tooth, pterygoid lamina and the tile type to barrel is by the broken of new aggregate feed inlet to new aggregate discharge gate direction, mixing stirring and the functional area of combustion heating in the realization, and then reaches the purpose that improves new aggregate combustion heating operation effect and combustion heating operating efficiency.

To sum up, the utility model discloses following beneficial effect has:

one is as follows: the heating device is used for heating waste heat generated by the high-temperature area of the inner cylinder body and the waste heat transferred from the inner cylinder body to the outside to heat reclaimed materials in the interlayer, so that the purpose of improving the heat utilization efficiency is achieved, and compared with the traditional two-cylinder heating mode, the double-layer single-cylinder heating mode is favorable for reducing heat loss (energy conservation), reducing the temperature of the drying cylinder and prolonging the service life;

the second step is as follows: the waste heat generated by the high-temperature area of the inner cylinder body is fully utilized to heat the reclaimed materials in the interlayer, thereby being beneficial to energy conservation and consumption reduction;

and thirdly: the flame generated by the heating device does not directly contact with the reclaimed materials, and asphalt smoke is not generated, thereby being beneficial to controlling secondary pollution;

fourthly, the method comprises the following steps: smoke dust generated in the heating operation process of the reclaimed materials and smoke dust generated in the conveying, metering and stirring operations can flow back into the inner cylinder body of the double-layer shunting drying cylinder, and secondary incineration operation is completed under the cooperation of the heating device, so that the aim of reducing the influence on the surrounding production operation environment is fulfilled;

and fifthly: the exhaust pipeline is matched with the feeding pipeline, so that the flue gas dust discharged from the new aggregate feeding hole is collected while the new aggregate feeding operation is realized;

and the sixth step: the elastic supporting components are matched to realize smooth and stable rotation of the barrel body, so that the aim of improving the working stability of the double-layer split-flow drying barrel is fulfilled.

Drawings

FIG. 1 is a schematic view of the configuration of the leading side of a dual layer, split flow dryer drum;

FIG. 2 is a schematic view of the rear side of the dual-deck split-flow dryer drum;

FIG. 3 is a schematic diagram mainly used for showing the corresponding relationship between the high temperature zone and the low temperature zone and the heating zone for new aggregate and the heating zone for regenerated aggregate;

FIG. 4 is a schematic longitudinal cross-sectional view of a dual-layer split-flow dryer drum;

FIG. 5 is a schematic view of the bottom structure of the dual-layer split-flow drying drum;

FIG. 6 is a schematic view mainly used for showing the end structure of the inner cylinder at the new aggregate outlet;

FIG. 7 is an enlarged schematic view of portion A of FIG. 4;

FIG. 8 is an enlarged schematic view of portion B of FIG. 4;

FIG. 9 is a schematic view mainly used for showing the functional areas inside the inner cylinder;

FIG. 10 is a schematic structural view of the resilient support assembly;

FIG. 11 is a flow chart of an environmentally friendly asphalt concrete production process.

Reference numerals: 1. a support; 11. a driving member; 111. a driving gear; 12. a support; 13. a friction plate; 2. a barrel; 21. an inner cylinder; 21-A, low temperature zone; 21-B, high temperature zone; 21-C, a crushing zone; 21-D, heat radiation zone; 21-E, a mixing zone; 211. a new aggregate feed port; 212. a new aggregate discharge port; 213. a toothed inner wing plate; 214. a V-shaped inner wing plate; 215. a tile-shaped inner wing plate; 216. an end plate; 217. an annular groove; 22. an outer cylinder; 23. an interlayer; 23-A, heating a new aggregate; 23-B, a reclaimed material heating zone; 231. a reclaimed material feeding hole; 232. a reclaimed material discharge port; 233. a new aggregate discharge opening; 24. a separating ring; 25. a gap; 26. a material guide plate; 27. a driven gear; 28. a flue gas port; 29. repairing the opening; 3. a heating device; 4. an exhaust duct; 5. a feed conduit; 51. a feeding port; 52. a delivery pipe; 53. vibrating the feeder; 54. turning over a plate; 6. a first outer wing plate; 7. a second outer wing panel; 8. an elastic support member; 81. a reinforcing ring; 82. an elastic ring; 83. a collar; 84. an elastic sheet; 841. an upper end connecting part; 842. a lower end connecting part; 9. a short V-shaped gap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

combine fig. 1 and fig. 2 to show, a double-deck shunting stoving section of thick bamboo, including support 1 that the slope set up and rotate the barrel 2 that sets up on support 1, barrel 2 establishes barrel 21 and outer barrel 22 in the complex including coaxial cover, interior barrel 21 rotates with the coaxial synchronization of outer barrel 22, the both ends of interior barrel 21 extend to the outside of outer barrel 22 and realize normal running fit with support 1, combine fig. 3 and fig. 6 to show, the tip shaping of interior barrel 21 has end plate 216, end plate 216 butt is inboard in the tip of outer barrel 22. An interlayer 23 is formed between the inner cylinder 21 and the outer cylinder 22, a separating ring 24 is clamped in the interlayer 23, namely the separating ring 24 is coaxially and fixedly arranged on the inner wall of the outer cylinder 22 and divides the interlayer 23 into a new aggregate heating area 23-A and a regenerated aggregate heating area 23-B, and as shown in fig. 6, an annular groove 217 is formed on the outer wall of the inner cylinder 21 at a position corresponding to the separating ring 24. The heating device 3 is arranged at the downward inclined tail end of the inner cylinder 21, and the heating device 3 is used for heating new aggregate in the inner cylinder 21. The inner cylinder 21 is communicated with the new aggregate heating zone 23-A, so that the new aggregate heated by the heating device 3 can enter the new aggregate heating zone 23-A, and the reclaimed materials are put into the reclaimed material heating zone 23-B to be heated and stirred and then discharged, namely, the heating operation of the reclaimed materials is completed by utilizing the waste heat emitted by the inner cylinder 21.

Referring to fig. 3 and 4, the heating device 3 is a flame injector, the flame injected into the inner cylinder 21 by the heating device 3 forms a low temperature zone 21-a near the tail end of the inner cylinder 21 and a high temperature zone 21-B far from the tail end of the inner cylinder 21 in the inner cylinder 21, and the low temperature zone 21-a and the high temperature zone 21-B are respectively arranged corresponding to the new aggregate heating zone 23-a and the reclaimed material heating zone 23-B of the interlayer 23, i.e. the new aggregate entering the new aggregate heating zone 23-a completes the heat dissipation and stirring operation in the rotation process of the cylinder 2, and the reclaimed material entering the reclaimed material heating zone 23-B completes the heating and stirring operation in the rotation process of the cylinder 2. The separating ring 24 is coaxially fixed on the inner wall of the outer cylinder 22, a gap 25 (shown in figure 7) is formed by matching the outer edge of the separating ring 24 (shown in figure 7) with the outer wall of the inner cylinder 21, the width range of the gap 25 is 10-20mm, and smoke dust generated in the heating and stirring process of the reclaimed materials can enter the new aggregate heating area 23-A through the gap 25 and then enter the inner cylinder through the new aggregate discharge port 212, and secondary combustion is completed under the action of the heating device 3.

As shown in fig. 1, a smoke port 28 is disposed at an end of the outer cylinder 22 away from the heating device 3, smoke generated in the outer cylinder 22 can enter the inner cylinder 21 for combustion, and smoke generated in the asphalt concrete production process can enter the inner cylinder 21 for combustion through the smoke port 28 and the outer cylinder 22.

As shown in fig. 1, a plurality of repair ports 29 are uniformly installed on both sides of the outer cylinder 22 in the longitudinal direction thereof to facilitate maintenance work by an operator.

Referring to fig. 1 and 4, a new aggregate feeding hole 211 is formed at the upward inclined head end of the inner cylinder 21, a new aggregate discharging hole 212 is formed on the side wall of the inner part of the inner cylinder 21, which is located in the outer cylinder 22, and the new aggregate discharging hole 212 is opened near the downward inclined tail end of the outer cylinder 22, and the new aggregate discharging hole 212 is communicated with the new aggregate heating zone 23-a of the interlayer 23, so that the new aggregate is fed into the inner cylinder 21 from the new aggregate feeding hole 211, heated by the heating device 3, and then enters the new aggregate heating zone 23-a through the new aggregate discharging hole 212 to perform heat dissipation operation; referring to fig. 4 and 5, a new aggregate discharge opening 233 is formed in a portion of the bottom of the outer cylinder 22 located in the new aggregate heating zone 23-a, so that the new aggregate subjected to the heat dissipation operation can be discharged from the new aggregate discharge opening 233.

As shown in fig. 4 and 5, a recycled material inlet 231 is provided on the outer wall of the inclined upward head end of the outer cylinder 22, and a recycled material outlet 232 is provided on the outer wall of the inclined downward tail end bottom of the outer cylinder 22, so that the recycled material is fed into the interlayer 23 from the recycled material inlet 231, and after the heating operation, the discharging operation is completed from the recycled material outlet 232. The new aggregate discharge port 233 and the regenerated aggregate discharge port 232 are respectively provided at positions of the new aggregate heating zone 23-a and the regenerated aggregate heating zone 23-B close to the partition ring 24, respectively.

Referring to fig. 4 and 7, a first outer wing plate 6 and a second outer wing plate 7 are respectively fixed on the outer wall of the inner cylinder 21 at the positions of the new aggregate heating zone 23-a and the regenerated aggregate heating zone 23-B, the first outer wing plate 6 and the second outer wing plate 7 are both arc-shaped plate members, short V-shaped notches 9 are respectively formed in the outer edges of the first outer wing plate 6 and the second outer wing plate 7, but the installation directions of the first outer wing plate 6 and the second outer wing plate 7 are opposite, that is, the bending directions of the first outer wing plate 6 and the second outer wing plate 7 are opposite. The first outer wing plate 6 plays a role in conveying and stirring the new aggregate, the second outer wing plate 7 plays a role in conveying and stirring the reclaimed material, the first outer wing plate 6 drives the new aggregate to be conveyed upwards from the obliquely downward end of the new aggregate heating area 23-A, and the second outer wing plate 7 drives the reclaimed material to be conveyed downwards from the obliquely upward end of the reclaimed material heating area 23-B, so that different conveying and stirring motions of the new aggregate and the reclaimed material are realized.

Referring to fig. 4 and 8, the new aggregate outlets 212 are uniformly arranged on the barrel body of the inner barrel 21 along the circumferential direction of the inner barrel 21, a material guide plate 26 is installed below each new aggregate outlet 212, and the material guide plate 26 is obliquely arranged and guides new aggregates discharged from the new aggregate outlets 212 to the new aggregate heating zone 23-a, so as to solve the problem that new aggregates are accumulated at the new aggregate outlets 212. An exhaust pipeline 4 is fixed on the bracket 1 at the position of the new aggregate feeding hole 211, one end of the exhaust pipeline 4 is communicated with the new aggregate feeding hole 211 and is in running fit with the new aggregate feeding hole, namely, the inner cylinder 21 is always communicated with the exhaust pipeline 4 in the running process, and the other end of the exhaust pipeline 4 is communicated with an external bag type dust collector, so that the purpose of collecting smoke dust generated in the burning and heating process of the new aggregate is achieved. In order not to influence the feeding operation of new aggregate, a feeding pipeline 5 is obliquely arranged in the exhaust pipeline 4 in a penetrating manner, the feeding pipeline 5 comprises a feeding opening 51 and a conveying pipe 52 extending from the feeding opening 51 to the inside of the inner cylinder 21, the conveying pipe 52 is obliquely arranged, and a discharge opening of the conveying pipe 52 extends to the position above the bottom of the inner cylinder 21. The turning plate 54 is rotatably arranged at the position where the feeding port 51 is communicated with the conveying pipe 52, and the turning plate 54 is matched to achieve the purpose of improving the tightness of the feeding pipeline 5.

As shown in fig. 9, a crushing zone 21-C, a mixing zone 21-E and a heat radiation zone 21-D are sequentially formed in the inner part of the inner cylinder 21 from the new aggregate inlet 211 to the new aggregate outlet 212, and a tooth-shaped inner wing plate 213, a V-shaped inner wing plate 214 and a tile-shaped inner wing plate 215 are respectively and uniformly mounted and fixed on the inner wall of the inner cylinder 21 in the three different stirring function zones, that is, the tooth-shaped inner wing plate 213 plays a role in crushing new aggregates, the V-shaped inner wing plate 214 plays a role in uniformly dispersing new aggregates, and the tile-shaped inner wing plate 215 plays a role in uniformly heating.

As shown in fig. 1, the inner cylinder 21 and the outer cylinder 22 are coaxially fixed and synchronously rotate, and both ends of the inner cylinder 21 extend to the outside of the outer cylinder 22 along the axial direction thereof and are rotatably engaged with the bracket 1. Two driving parts 11 for driving the roller to rotate are fixedly arranged on the bracket 1, the driving parts 11 are arranged as motors, and the two driving parts 11 are symmetrically fixed on the bracket 1; the output shafts of the two driving parts 11 are provided with driving gears 111, and the outer wall of the inner cylinder 21 is coaxially sleeved and fixed with driven gears 27, so that the two driving parts 11 drive the inner cylinder 21 to rotate through the meshing transmission of the driving gears 111 and the driven gears 27, and further the rotary matching of the cylinder 2 and the bracket 1 is realized. The output shaft of the driving member 11 is connected with a friction plate 13, i.e. the output shaft of the driving member 11 drives the driving gear 111 to rotate through the friction plate 13.

Referring to fig. 1 and 10, in order to improve the rotational stability of the cylinder 2, the two ends of the inner cylinder 21 are both provided with elastic support assemblies 8, each elastic support assembly 8 includes a reinforcing ring 81 coaxially riveted and fixed on the outer wall of the inner cylinder 21, a shaft collar 83 is coaxially sleeved outside the reinforcing ring 81, and an elastic ring 82 is welded between the reinforcing ring 81 and the shaft collar 83. Two supports 12 are symmetrically arranged on the bracket 1 at positions corresponding to the collars 83, so that two ends of the inner cylinder 21 are respectively in sliding fit with the supports 12 on the bracket 1 through the respective corresponding collars 83.

The elastic ring 82 is a combined annular structure formed by overlapping a plurality of elastic sheets 84 at staggered intervals, that is, adjacent elastic sheets 84 are overlapped to form staggered intervals, the elastic sheets 84 comprise lower end connecting parts 842 fixed to the outer wall of the reinforcing ring 81 in a welding manner and upper end connecting parts 841 fixed to the inner wall of the collar 83 in a welding manner, the installation area of the lower end connecting parts 842 is larger than that of the upper end connecting parts 841, and the ring width of the reinforcing ring 81 is larger than that of the collar 83, so that the purpose of improving the structural strength of the elastic ring 82 is achieved.

The present embodiment is further described below with reference to specific actions:

the new aggregate enters the crushing zone 21-C of the inner cylinder 21 through the feeding pipeline 5, then sequentially passes through the mixing zone 21-E and the heat radiation zone 21-D, completes heating and burning operation at the heat radiation zone 21-D, enters the new aggregate heating zone 23-A through the new aggregate discharging port 212, completes stirring operation under the drive of the first outer wing plate 6, and completes discharging operation of the new aggregate through the new aggregate discharging port 233; the reclaimed materials are fed into the reclaimed material heating zone 23-B through the reclaimed material feeding hole 231, the heating and stirring operation of the reclaimed materials is completed under the driving of the second outer wing plate 7, and the discharging operation of the reclaimed materials is completed through the reclaimed material discharging hole 232.

Example two:

as shown in fig. 11, in the asphalt concrete production process, the newly-mixed aggregate and the recycled aggregate are subjected to aggregate heating operation, then the aggregate conveying operation and the aggregate metering operation are respectively and independently completed, and finally the aggregates are put into a stirring cylinder in proportion to complete the aggregate stirring operation. The aggregate heating operation comprises a new aggregate heating operation and a reclaimed material heating operation, and the new aggregate heating operation and the reclaimed material heating operation are both completed in the double-layer split-flow drying cylinder. The hot new aggregate obtained after the new aggregate heating operation is stored for standby after lifting operation and screening operation, and the hot regenerated aggregate obtained after the regenerated aggregate heating operation is stored for standby after lifting operation; and respectively weighing the hot new aggregate and the hot recycled material, and mixing and stirring to obtain a finished product material.

Flue gas generated in aggregate conveying operation, aggregate metering operation and aggregate stirring operation is returned through a pipeline and conveyed to the inner cylinder body 21 of the double-layer split-flow type drying cylinder to complete secondary incineration.

This example is further illustrated below with reference to a specific production flow:

s1, recovering old materials, milling and crushing waste materials to obtain reclaimed materials; meanwhile, after stone is crushed, screening and batching to obtain new aggregate;

s2, heating and drying, namely, feeding the new aggregate into an inner barrel 21 of the double-layer split-flow drying barrel, feeding the reclaimed material into an interlayer 23 of the double-layer split-flow drying barrel at a stirring speed of 1800rpm, performing combustion heating operation on the new aggregate in the inner barrel 21, and simultaneously performing waste heat heating operation on the reclaimed material in the interlayer 23 to obtain hot new aggregate and hot reclaimed material respectively;

s3, discharging and warehousing, namely lifting, screening and metering the hot new aggregate, then conveying the hot new aggregate into a storage warehouse A, and lifting and metering the external hot regenerated aggregate, and then conveying the external hot regenerated aggregate into a storage warehouse B;

s4, stirring raw materials, namely feeding the hot fresh aggregate in the storage bin A and the hot recycled material in the storage bin B into a stirring cylinder according to the proportion required by production for premixing, wherein the stirring speed is 2000rpm, the time is 20min, the temperature is 150 ℃, so that a mixture is obtained, and opening and blanking can be realized when the premix reaches more than 90% of the total capacity of the pre-stirring storage bin, and the mixture is fed into the storage bin C; feeding the mixture in the storage bin C into a forced mixing cylinder according to production requirements, and forcibly stirring for 15-30 seconds to obtain a finished product material;

and S5, discharging the finished product out of the warehouse, and discharging the finished product in the finished product storage warehouse into a storage tank of a finished product conveying vehicle in a finished product material loading area.

The present invention is not limited to the above embodiment, and those skilled in the art can make modifications to the embodiment as required without inventive contribution after reading the present specification, but all the modifications are protected by patent laws within the scope of the claims of the present invention.

Claims (9)

1. Double-deck shunting stoving section of thick bamboo rotates barrel (2) of setting up on support (1) including support (1) and slope, be provided with heating device (3) on barrel (2), barrel (2) are including interior barrel (21) and outer barrel (22) that coaxial cover was established, just interior barrel (21) and outer barrel (22) cooperate and are formed with intermediate layer (23), interior barrel (21) are linked together its characterized in that with intermediate layer (23): a separating ring (24) is coaxially clamped in the interlayer (23), the interlayer (23) is divided into a new aggregate heating zone (23-A) and a reclaimed material heating zone (23-B) by the separating ring (24), and a first outer wing plate (6) and a second outer wing plate (7) for stirring aggregates are respectively arranged on the outer wall of the inner cylinder body (21) at the new aggregate heating zone (23-A) and the reclaimed material heating zone (23-B);

the novel aggregate heating device is characterized in that a new aggregate feeding hole (211) is formed in one end, far away from the heating device (3), of the inner cylinder body (21), a regenerated aggregate feeding hole (231) is formed in one end, far away from the new aggregate heating region (23-A), of the outer cylinder body (22), a new aggregate discharging hole (212) is formed in one end, far away from the regenerated aggregate heating region (23-B), of the outer cylinder body (21), the new aggregate discharging hole (212) is communicated with the new aggregate heating region (23-A), a regenerated aggregate discharging hole (232) and a new aggregate discharging hole (233) are formed in the position, corresponding to the separating ring (24), of the outer cylinder body (22), and the regenerated aggregate discharging hole (232) and the new aggregate discharging hole (233) are respectively connected with the new aggregate heating region (23-A), The reclaimed material heating zone (23-B) is communicated;

the heating device (3) sprays flame towards the inner space of the inner cylinder (21), the flame heats the inner space of the inner cylinder (21) and forms a low-temperature area (21-A) and a high-temperature area (21-B), the low-temperature area (21-A) and the new aggregate heating area (23-A) are correspondingly arranged, and the high-temperature area (21-B) and the reclaimed aggregate heating area (23-B) are correspondingly arranged.

2. The dual layer split drying drum of claim 1, wherein: the new aggregate discharge port (212) is uniformly arranged at the end part of the inner cylinder body (21) along the circumferential direction of the inner cylinder body, the new aggregate discharge port (212) is provided with a material guide plate (26), and the new aggregate is guided to the new aggregate heating zone (23-A) by the material guide plate (26).

3. The dual layer diverter dryer drum of claim 1 or 2, wherein: the first outer wing plate (6) and the second outer wing plate (7) are both arranged to be arc-shaped plates, and short V-shaped notches (9) are formed in the outer edges of the first outer wing plate (6) and the second outer wing plate (7).

4. The dual layer split drying drum of claim 1, wherein: the separating ring (24) is coaxially fixed on the inner wall of the outer cylinder body (22), a gap (25) is formed by matching the separating ring (24) and the inner cylinder body (21), and the width range value of the gap (25) is 10-20 mm.

5. The dual layer split drying drum of claim 1, wherein: new aggregate feed inlet (211) department is provided with exhaust duct (4), just wear to be equipped with charge-in pipeline (5) in exhaust duct (4), the discharge gate of charge-in pipeline (5) is stretched into to interior bottom surface of interior barrel (21) by exhaust duct (4).

6. The dual layer split drying drum of claim 5, wherein: the feeding pipeline (5) comprises a feeding port (51) and a conveying pipe (52) extending from the feeding port (51) to the inner cylinder body (21), and a turning plate (54) is arranged at the position where the feeding port (51) is communicated with the conveying pipe (52).

7. The dual layer split drying drum of claim 1, wherein: the two ends of the inner cylinder (21) extend out of the outer cylinder (22), a driving part (11) is arranged on the support (1), and the driving part (11) is in gear transmission connection with the inner cylinder (21); the both ends of interior barrel (21) all are provided with elastic support subassembly (8), elastic support subassembly (8) are located axle ring (83) of barrel (21) tip and press from both sides elastic sheet (84) of locating between the two including coaxial cover, just axle ring (83) and support (1) rotational support cooperation.

8. The dual layer split drying drum of claim 7, wherein: the outer wall of the inner cylinder body (21) is coaxially sleeved with a reinforcing ring (81) in a riveting and fixing mode, and the elastic sheet (84) is arranged on the reinforcing ring (81).

9. The dual layer split drying drum of claim 1, wherein: a crushing area (21-C), a mixing area (21-E) and a heat radiation area (21-D) are formed on the inner wall of the inner cylinder body (21) from a new aggregate feeding hole (211) to a new aggregate discharging hole (212), and tooth-shaped inner wing plates (213), V-shaped inner wing plates (214) and tile-shaped inner wing plates (215) are respectively arranged on the inner walls of the crushing area (21-C), the mixing area (21-E) and the heat radiation area (21-D) of the inner cylinder body (21).

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