Drying drum with double-layer drum body

Abstract

The utility model discloses a double-layer barrel drying drum, which comprises a drum main body, a material lifting blade and a discharge box, the drum main body comprises an inner barrel and an outer barrel which are fixedly connected with each other, a barrel air duct is arranged between the inner barrel and the outer barrel, the discharge box is provided with a connecting port and an air inlet, and the air inlet is provided with a first guide plate. The front end of the barrel body is connected with the connecting port, the material lifting blade is fixedly connected to the inner side wall of the inner barrel body, a flow guide channel is formed in the material lifting blade, an air inlet and an air outlet are formed in the front end and the rear end of the material lifting blade respectively, and the air inlet and the air outlet are communicated with the barrel body air channel. Compared with the prior art, regenerated materials can be prevented from being adhered to the material lifting blades after being heated, the load of the roller is reduced, the normal operation of the roller is ensured, and the manual cleaning cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to asphalt drying heating system, concretely relates to a double -layer cylinder drying cylinder. BACKGROUND

[0002] Asphalt is the black brown complex mixture of different molecular weight hydrocarbons and its nonmetal derivative, is a kind of high viscosity organic liquid, mostly in liquid or semi-solid petroleum form, surface is black, can be dissolved in carbon disulfide, carbon tetrachloride.Asphalt is a waterproof and moistureproof and anticorrosive organic cementitious material.Natural asphalt is stored in the ground, some form the ore bed or accumulate on the surface of the earth's crust.Asphalt is mainly used in coating, plastics, rubber industry and pavement etc.

[0003] In the production process of asphalt in mixing plant hot regeneration, the recycled aggregate stored in the stock bin enters the regeneration drying cylinder by belt conveyor and is dried and heated, so that the aggregate reaches the appropriate temperature and can be used, since hot air enters the cylinder, the temperature in the center of the cylinder is higher, and the temperature on the cylinder wall is much lower, so that the regenerated material has viscosity after heating, and is adhered to the rake and lifting blade with lower temperature, which is difficult to clean, and the lifting blade is completely stuck after a long time, resulting in large cylinder load and inability to use, which requires a lot of manual cleaning cost.

[0004] Therefore, the applicant has conducted in-depth research on the above problems, and thus the present case is produced. SUMMARY

[0005] The main purpose of the utility model is to provide a double -layer cylinder drying cylinder, which can effectively solve the above technical problems.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A double -layer cylinder drying cylinder, including cylinder main body, lifting blade and discharge box, the cylinder main body includes inner cylinder and outer cylinder, which are fixedly connected, and the cylinder body air duct is arranged between the inner cylinder and the outer cylinder, the discharge box is provided with a connecting port and an air inlet, a first baffle is arranged on the air inlet, the front end of the cylinder main body is connected with the connecting port, the lifting blade is fixedly connected on the inner side wall of the inner cylinder, the inner part of the lifting blade is provided with a flow guide channel, the front and rear ends of the lifting blade are respectively provided with air inlet hole and air outlet hole, and the air inlet hole and the air outlet hole are communicated with the cylinder body air duct.

[0008] Further, the discharge box is provided with a material guiding assembly, and the material guiding assembly comprises a flow guiding section and a connecting section, the flow guiding section is connected with the front end of the inner cylinder, and the connecting section is connected with the front end of the outer cylinder.

[0009] Further, the front end of the flow guide section is gradually inclined towards the inner side from back to front, the rear end of the flow guide section is provided with a first bending part, the front end of the inner cylinder body is provided with a second bending part, and the first bending part and the second bending part are buckled with each other.

[0010] Further, the rear end of the connecting section is provided with a third bending part, the front end of the outer cylinder body is provided with a fourth bending part, and the third bending part and the fourth bending part are buckled with each other.

[0011] Further, the outer side wall of the outer cylinder body is provided with a second flow guide plate behind the air inlet hole of the lifting blade, and the second flow guide plate is gradually inclined towards the outer side from back to front.

[0012] Further, the side wall of the inner cylinder body is provided with uniformly distributed harrow spikes.

[0013] Further, the device further comprises a support and a driving mechanism, the cylinder body is obliquely arranged on the support, the driving mechanism comprises a driving motor and a driving wheel, the driving motor is fixedly connected to the support, the driving wheel is sleeved on the motor shaft of the driving motor, the outer side of the cylinder body is provided with a rolling ring, and the driving wheel is in transmission cooperation with the rolling ring.

[0014] Compared with the prior art, the device has the beneficial effects that hot air is introduced into the cylinder body from the air inlet, a part of the hot air can enter the inner cylinder body to heat the regenerated material, and the other part of the hot air can enter the cylinder air duct through the flow guide assembly and be guided to the inside of the lifting blade through the cylinder air duct to heat the lifting blade. In this way, the regenerated material after heating can be prevented from being stuck on the lifting blade, the load of the roller is reduced, the normal operation of the roller is ensured, and the labor cleaning cost is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the outer shape structure of the device.

[0016] Figure 2 It is a sectional structure schematic view of the device.

[0017] Figure 3 It is a sectional structure perspective view of the device.

[0018] Figure 4 It is a structure schematic view of the lifting blade.

[0019] Figure 5 It is a connection structure schematic view of the flow guide assembly and the cylinder body.

[0020] In the figure: cylinder body 1, inner cylinder 11, outer cylinder 12, second guide plate 121, cylinder air duct 13, cylinder air duct 13, rake blade 14, lifting blade 2, fixing rod 21, guide channel 22, air inlet 23, air outlet 24, discharge box 3, connection port 31, air inlet 32, first guide plate 33, bracket 4, drive motor 51, drive wheel 52, rolling ring 53, material guiding assembly 6, guide section 61, connecting section 62, first bending part 71, second bending part 72, third bending part 73, fourth bending part 74. Detailed Implementation

[0021] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0022] like Figures 1-5 As shown, a double-layer cylindrical drying drum includes a drum body 1, lifting blades 2, a discharge box 3, a support 4, and a drive mechanism. The front end of the drum body 1 is inclined downwards on the support 4, and the rear end of the support 4 is provided with a deflector wheel to prevent the drum body 1 from shifting. The drive mechanism includes a drive motor 51 and a drive wheel 52. The drive motor 51 is fixedly connected to the support 4, and the drive wheel 52 is sleeved on the motor shaft of the drive motor 51. A rolling ring 53 is provided on the outer side of the drum body 1, and the drive wheel 52 is in a transmission cooperation with the rolling ring 53. The drive motor 51 drives the drive wheel 52 to rotate, thereby driving the drum body 1 to rotate. The rear end of the drum body 1 is used for feeding and the front end is used for discharging. The drum body 1 includes an inner cylinder 11 and an outer cylinder 12 fixedly connected to each other. A drum air duct 13 is provided between the inner cylinder 11 and the outer cylinder 12. The inner cylinder 11 has evenly distributed rake blades 14 on its side wall. The discharge box 3 is provided with a connection port 31 and an air inlet 32, and the bottom of the discharge box 3 is used for discharging. A first guide plate 33 is provided on the air inlet 32. The first guide plate 33 gradually slopes outward from back to front, guiding the external hot air so that it can enter the discharge box 3 effectively. The front end of the cylinder body 1 is connected to the connection port 31, and the lifting blade 2 is fixedly connected to the inner wall of the inner cylinder 11. Specifically, the lifting blade 2 is provided with several fixing rods 21, which are welded to the inner wall of the inner cylinder 11. The lifting blade 2 has a guide channel 22 inside, and the front and rear ends of the lifting blade 2 are respectively provided with an air inlet 23 and an air outlet 24, which are connected to the cylinder air duct 13. In this way, after the hot air enters the cylinder air duct 13, it can enter the lifting blade 2 through the air inlet 23 to heat the lifting blade 2, and then the hot air is discharged through the air outlet 24.

[0023] In the embodiment, the discharge box 3 is provided with a fixedly connected material guiding assembly 6, which comprises a guiding section 61 and a connecting section 62. The guiding section 61 is connected to the front end of the inner cylinder 11, and the connecting section 62 is connected to the front end of the outer cylinder 12. The front end of the guiding section 61 is gradually inclined towards the inner side from back to front. The guiding section 61 can guide the hot air into the cylinder air duct 13. More specifically, the rear end of the guiding section 61 is provided with a first bending part 71, and the front end of the inner cylinder 11 is provided with a second bending part 72. The first bending part 71 and the second bending part 72 are buckled to each other. The rear end of the connecting section 62 is provided with a third bending part 73, and the front end of the outer cylinder 12 is provided with a fourth bending part 74. The third bending part 73 and the fourth bending part 74 are buckled to each other. Through the structure, the resistance of the hot air backflow can be increased, so as to avoid the hot air leakage.

[0024] More preferably, the outer side wall of the outer cylinder 12 is provided with a second guiding plate 121 behind the air inlet hole 23 of the material lifting blade 2. The second guiding plate 121 is gradually inclined towards the outer side from back to front. The second guiding plate 121 can guide the hot air, which is beneficial to the hot air entering into the material lifting blade 2 through the air inlet hole 23.

[0025] Compared with the prior art, the hot air is introduced into the cylinder main body 1 through the air inlet 32. Part of the hot air can enter into the inner cylinder 11 to heat the regenerated material, and the other part of the hot air can enter into the cylinder air duct 13 through the guiding assembly and be guided into the material lifting blade 2 to heat the material lifting blade 2. In this way, the regenerated material after heating can be prevented from sticking to the material lifting blade 2, the roller load is reduced, the roller can normally work, and the labor cleaning cost is effectively reduced.

[0026] The above embodiments and drawings are not limited to the product shape and style of the utility model. Any appropriate changes or modifications made by ordinary skilled in the art should be considered as not departing from the scope of the utility model.

Claims

1. A double-layered cylinder drying drum, characterized by, The cylinder body includes an inner cylinder and an outer cylinder fixedly connected with each other, and a cylinder air duct is arranged between the inner cylinder and the outer cylinder; the discharge box is provided with a connecting port and an air inlet, the air inlet is provided with a first flow guide plate, the front end of the cylinder body is connected with the connecting port, the lifting blade is fixedly connected to the inner side wall of the inner cylinder, the inner part of the lifting blade is provided with a flow guide channel, the front end and the rear end of the lifting blade are respectively provided with an air inlet hole and an air outlet hole, and the air inlet hole and the air outlet hole are communicated with the cylinder air duct.

2. A dual deck dryer cylinder as claimed in claim 1 wherein, The discharge box is provided with a material guiding assembly, and the material guiding assembly includes a flow guiding section and a connecting section.

3. A dual deck dryer cylinder as claimed in claim 2 wherein, The front end of the flow guiding section is gradually inclined to the inner side from back to front, the rear end of the flow guiding section is provided with a first bending part, the front end of the inner cylinder is provided with a second bending part, and the first bending part and the second bending part are mutually buckled.

4. A dual deck dryer cylinder as claimed in claim 3 wherein, The rear end of the connecting section is provided with a third bending part, the front end of the outer cylinder is provided with a fourth bending part, and the third bending part and the fourth bending part are mutually buckled.

5. A dual deck dryer cylinder as defined in claim 1 wherein, The outer side wall of the outer cylinder is provided with a second flow guide plate behind the air inlet hole of the lifting blade, and the second flow guide plate is gradually inclined to the outer side from back to front.

6. A dual deck dryer cylinder as defined in claim 1 wherein, The side wall of the inner cylinder is provided with uniformly distributed rake blades.

7. A dual deck dryer cylinder as defined in claim 1 wherein, The cylinder body is obliquely arranged on the support, the driving mechanism includes a driving motor and a driving wheel, the driving motor is fixedly connected to the support, the driving wheel is sleeved on the motor shaft of the driving motor, the outer side of the cylinder body is provided with a rolling ring, and the driving wheel is in transmission cooperation with the rolling ring.

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