CN212692341U

CN212692341U - Low-energy-consumption three-return-stroke drying roller

Info

Publication number: CN212692341U
Application number: CN202021158505.8U
Authority: CN
Inventors: 孙良敏; 李中建
Original assignee: Wujiang Hengtai Concrete Products Co ltd
Current assignee: Wujiang Hengtai Concrete Products Co ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2021-03-12
Anticipated expiration: 2030-06-20

Abstract

The utility model relates to a low-energy-consumption three-return-stroke drying roller, which comprises a roller body, wherein the roller body comprises an outer barrel, a middle barrel and an inner barrel which are coaxially arranged, the middle barrel is fixedly connected with the outer barrel, the inner barrel is fixedly connected with the middle barrel, one end of the inner barrel is provided with an air inlet and a feed inlet, one end of the outer barrel, which is far away from the feed inlet, is provided with a discharge port, the discharge port is positioned at the bottom, and the outer barrel is provided; the inner barrel is internally and coaxially provided with a flow guide pipeline, the flow guide pipeline is fixedly connected with the support frame and is rotatably connected with the inner barrel, a flow guide branch pipe is arranged on the flow guide pipeline, one end, away from the feed inlet, of the flow guide branch pipe is sealed, the flow guide branch pipe is axially provided with a plurality of flow guide branch pipes, and the flow guide branch pipe is provided with a plurality of air holes along the circumferential direction. The utility model has the advantages of can improve the drying efficiency to the material.

Description

Low-energy-consumption three-return-stroke drying roller

Technical Field

The utility model belongs to the technical field of drying equipment's technique and specifically relates to a three return stroke drying drum of low energy consumption is related to.

Background

At present, with the development of economy, the construction strength of infrastructure is continuously increased, particularly the construction of roads is more obvious, then in the construction of roads, the frequently used substance for paving the road surface is asphalt concrete, and a large amount of asphalt and stone materials required for paving the asphalt concrete road surface also enable people to face huge resource pressure. Therefore, the recycling of the recycled materials becomes a key point for constructing a conservation-oriented society, an environment-friendly society and a green society, the recycling of the recycled materials is currently performed by adopting asphalt concrete thermal recycling equipment, and the asphalt concrete thermal recycling equipment needs to heat and dry old asphalt concrete by using a drying roller and then perform recycling.

The current chinese patent that publication number is CN209830187U discloses a three-return-stroke drum dryer, including the cylinder body, the cylinder body is by being equipped with urceolus, well section of thick bamboo and inner tube in proper order outside to in, and the diameter and the length of urceolus, well section of thick bamboo and inner tube set gradually degressively in proper order, the left end face of cylinder body has first end cover through bolt fixed mounting, the right-hand member face welding of cylinder body has the second end cover, and the right side of second end cover is connected with ejection of compact cover, the left side of first end cover is rotated through the bearing and is installed the conveying pipe, and the upper end of conveying pipe is connected with hot-blast advancing pipe.

Although three return stroke cylinder drying-machines among the above-mentioned technical scheme can dry to the concrete material, but in the in-service use process because the both ends of inner tube are open, so when letting in steam to the cylinder body, steam directly passes through along the inner tube axial easily, leads to steam and the interior material contact time of inner tube not enough for the utilization ratio to steam is not enough, thereby influences the drying efficiency of material.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a three return stroke drying roller of low energy consumption has the advantage that can improve the drying efficiency to the material.

The above object of the present invention is achieved by the following technical solutions: a low-energy-consumption three-return-stroke drying roller comprises a roller body, wherein the roller body comprises an outer barrel, a middle barrel and an inner barrel which are coaxially arranged, the middle barrel and the outer barrel are fixedly connected, the inner barrel and the middle barrel are fixedly connected together, one end of the inner barrel is provided with an air inlet and a feed inlet, and the outer barrel is provided with a support frame for supporting the outer barrel; the method is characterized in that: the inner cylinder is internally and coaxially provided with a flow guide pipeline, the flow guide pipeline is fixedly connected with the support frame and is rotatably connected with the inner cylinder, the flow guide pipeline is provided with a flow guide branch pipe, one end, away from the feed inlet, of the flow guide branch pipe is closed, the flow guide branch pipes are axially arranged along the flow guide pipeline, and the flow guide branch pipes are circumferentially provided with a plurality of air holes.

Through adopting above-mentioned technical scheme, when needs were dried the material, rotate the cylinder body, in continuously letting in steam the water conservancy diversion pipeline, steam got into the water conservancy diversion branch pipe from the water conservancy diversion pipeline, then dried the material in getting into the inner tube from the gas pocket, the water conservancy diversion pipeline can reduce the possibility that steam directly flowed through the inner tube along the inner tube axial, and a plurality of water conservancy diversion branch pipes can increase the contact rate of material and steam, increase drying efficiency.

The present invention may be further configured in a preferred embodiment as: the flow guide branch pipes are arranged in a plurality along the circumferential direction of the flow guide pipeline.

Through adopting above-mentioned technical scheme, the area of contact that can increase steam and material is set up a plurality ofly along water conservancy diversion pipeline circumference to the water conservancy diversion branch pipe to increase the drying efficiency of material.

The present invention may be further configured in a preferred embodiment as: the inner wall of the inner barrel is fixedly connected with a stabilizing frame, and the flow guide pipeline penetrates through the stabilizing frame and is rotatably connected with the stabilizing frame.

Through adopting above-mentioned technical scheme, firm frame can play the effect of support and location to the water conservancy diversion pipeline, and firm frame rotates along with the inner tube, and the water conservancy diversion pipeline rotates with firm frame and is connected, and when the inner tube rotated, the water conservancy diversion pipeline can not rotate, has increased water conservancy diversion pipeline stability.

The present invention may be further configured in a preferred embodiment as: the diversion pipeline is a straight diversion pipe, the straight diversion pipe comprises a plurality of sections of straight pipes with diameters sequentially reduced, and the plurality of sections of straight pipes are coaxially and fixedly connected.

Through adopting above-mentioned technical scheme, continuously let in steam in the alignment draft tube, because the diameter of multistage straight tube reduces in proper order, gaseous velocity of flow is very fast in the less pipeline of diameter to gas can receive certain resistance when entering into less pipeline from great pipeline, thereby makes partly gaseous because of receiving the faster guide branch pipe that enters into of resistance, thereby makes gaseous faster discharge from guide branch pipe and dries the material.

The present invention may be further configured in a preferred embodiment as: the diversion pipeline is a spiral diversion pipe, the spiral diversion pipe is fixedly connected with the support frame, and the spiral diversion pipe is rotatably connected with the roller.

Through adopting above-mentioned technical scheme, let in hot gas in the spiral honeycomb duct, then hot gas enters into the water conservancy diversion branch pipe from the spiral honeycomb duct, and the material is dried to the branch discharge of water conservancy diversion.

The present invention may be further configured in a preferred embodiment as: conveying plates for conveying materials are arranged on the inner walls of the inner barrel, the middle barrel and the outer barrel, the conveying plates are arranged in an inclined mode, the inclined direction of the conveying plates on the inner barrel is opposite to the inclined direction of the conveying plates on the middle barrel, and the inclined direction of the conveying plates on the outer barrel is the same as the inclined direction of the conveying plates on the inner barrel.

Through adopting above-mentioned technical scheme, when the cylinder body rotates, the delivery board can be carried this internal material of cylinder, carry the one end that the discharge gate was kept away from to the inner tube with the material in the inner tube from feed inlet department, when carrying, water conservancy diversion branch pipe spun steam is dried the material, the material falls into after the well section of thick bamboo from the one end that the feed inlet was kept away from to the inner tube, the material of delivery board in with the well section of thick bamboo is carried along the direction opposite with inner tube direction of delivery, water conservancy diversion branch pipe spun steam dries the material in getting into the well section of thick bamboo from the inner tube simultaneously, after the material falls into the urceolus from the well section of thick bamboo, the delivery board carries the material.

The present invention may be further configured in a preferred embodiment as: and a plurality of lifting plates are arranged on the conveying plate.

Through adopting above-mentioned technical scheme, the lifting blade can be taken up this internal material of cylinder, then falls, can increase the contact rate of material and steam like this to accelerate the material and dry.

The present invention may be further configured in a preferred embodiment as: a plurality of first supporting rods are arranged between the inner barrel and the middle barrel, and a plurality of second supporting rods are arranged between the middle barrel and the outer barrel.

Through adopting above-mentioned technical scheme, first bracing piece can play certain supporting role to the well section of thick bamboo for the inner tube is connected more firmly with well section of thick bamboo, and the second bracing piece can be so that well section of thick bamboo and the connection of urceolus more firm.

The present invention may be further configured in a preferred embodiment as: and the outer wall of the outer barrel is provided with heat insulation cotton.

Through adopting above-mentioned technical scheme, the cotton can keep warm to the urceolus that keeps warm, reduces thermal scattering and disappearing for the heat can be used for the stoving of material to furthest, practices thrift heat energy.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the diversion pipeline, the retention time of hot air in the roller body can be prolonged, so that the contact time of the hot air and the material is prolonged, the hot air can be more effectively utilized, and the consumption of heat energy is reduced;

2. the material can be lifted and then falls down through the arrangement of the material lifting plate, so that the contact rate of the material and hot air is increased, and the drying efficiency is improved;

3. through the setting of the heat preservation cotton, the outer barrel can be subjected to heat preservation, heat loss is reduced, heat can be used for drying materials to the greatest extent, and consumption of heat energy is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a low energy consumption three-pass drying drum;

FIG. 2 is a cross-sectional view of a low energy consumption three-pass drying drum;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is an enlarged view at B in fig. 2.

In the figure, 1, a roller body; 2. an outer cylinder; 3. a middle cylinder; 4. an inner barrel; 5. an air inlet; 6. a feed inlet; 7. a discharge port; 8. a support frame; 9. a diversion pipeline; 10. a diversion branch pipe; 11. air holes; 12. a stabilizing frame; 13. a conveying plate; 14. a material raising plate; 15. a first support bar; 16. a second support bar; 17. a drive assembly; 18. a servo motor; 19. a first gear; 20. a second gear.

Detailed Description

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

As shown in fig. 1 and 2, for the utility model discloses a three return stroke drying roller of low energy consumption, including cylinder body 1, cylinder body 1 includes urceolus 2 of coaxial setting, well section of thick bamboo 3 and inner tube 4, well section of thick bamboo 3 and urceolus 2 be fixed connection in proper order, be provided with the heat preservation cotton on the outer wall of urceolus 2, the heat preservation cotton can keep warm to urceolus 2, reduce thermal scattering and disappearing, make the heat can be furthest be used for the stoving of material, save heat energy, be equipped with the support frame 8 that is used for supporting urceolus 2 on the urceolus 2, be equipped with drive assembly 17 of drive urceolus 2 pivoted on the support frame 8, drive assembly 17 includes servo motor 18 of fixed connection on support frame 8, the coaxial first gear 19 that is provided with on the servo motor 18 output shaft, the cover is equipped with second gear 20 on urc.

As shown in fig. 2 and 4, a flow guide pipeline 9 is coaxially arranged in the inner cylinder 4, the flow guide pipeline 9 is fixedly connected with the support frame 8, the flow guide pipeline 9 is rotatably connected with the inner cylinder 4, a fixing frame 12 is fixedly connected to the inner wall of the inner cylinder 4, the flow guide pipeline 9 penetrates through the fixing frame 12 and is rotatably connected with the fixing frame 12 to support the flow guide pipeline 9, so that the flow guide pipeline 9 is more stable to be placed, a flow guide branch pipe 10 is arranged on the flow guide pipeline 9, the flow guide branch pipe 10 is arranged in a plurality along the circumferential direction and the axial direction of the flow guide pipeline 9, one end, far away from the feed inlet 6, of the flow guide branch pipe 10 is sealed, and a plurality of air holes 11.

As shown in fig. 2 and 3, when the material is required to be dried, the roller body 1 is rotated, hot air is continuously introduced into the flow guide pipeline 9, the hot air enters the flow guide branch pipes 10 from the flow guide pipeline 9, then the hot air enters the inner barrel 4 from the air holes 11 to be dried, the flow guide pipeline 9 can reduce the possibility that the hot air directly flows through the inner barrel 4 along the axial direction of the inner barrel 4, the contact rate of the material and the hot air can be increased through the plurality of flow guide branch pipes 10, and the drying efficiency is increased.

As shown in fig. 2 and 3, diversion pipeline 9 is straight honeycomb duct, straight honeycomb duct includes the straight tube that multistage diameter reduces in proper order, the coaxial fixed connection of multistage straight tube, after continuous letting in steam in the straight honeycomb duct, because the diameter of multistage straight tube reduces in proper order, gaseous velocity of flow is very fast in the less pipeline of diameter, and gas can receive certain resistance when entering into less pipeline from great pipeline, thereby make partly gaseous because of receiving the faster water conservancy diversion branch pipe 10 that enters into of resistance, thereby make gaseous faster discharge from water conservancy diversion branch pipe 10 and dry the material.

As shown in fig. 2, a plurality of first support rods 15 are arranged between the inner barrel 4 and the middle barrel 3, a plurality of second support rods 16 are arranged between the middle barrel 3 and the outer barrel 2, the first support rods 15 can support the middle barrel 3 to a certain extent, so that the inner barrel 4 and the middle barrel 3 are more stably connected, the second support rods 16 can enable the middle barrel 3 and the outer barrel 2 to be more firmly connected, gaps are reserved between the inner barrel 4 and the middle barrel 3 and between the middle barrel 3 and the outer barrel 2, conveying plates 13 for conveying materials are arranged on the inner walls of the inner barrel 4, the middle barrel 3 and the outer barrel 2, the conveying plates 13 are obliquely arranged, the oblique direction of the conveying plate 13 on the inner barrel 4 is opposite to that of the conveying plate 13 on the middle barrel 3, and the oblique direction of the conveying plate 13 on the outer barrel 2 is the same as that of the conveying plate 13 on the inner barrel 4.

As shown in fig. 2, when the drum body 1 rotates, the conveying plate 13 can convey the material in the drum body 1, the material in the inner cylinder 4 is conveyed from the feed inlet 6 to one end of the inner cylinder 4 far away from the discharge outlet 7, while conveying, the hot gas sprayed from the diversion branch pipe 10 dries the material, after the material falls into the middle cylinder 3 from one end of the inner cylinder 4 far away from the feed inlet 6, the conveying plate 13 conveys the material in the middle cylinder 3 in the direction opposite to the conveying direction of the inner cylinder 4, meanwhile, the hot gas sprayed from the diversion branch pipe 10 enters the middle cylinder 3 from the inner cylinder 4 to dry the material, after the material falls into the outer cylinder 2 from the middle cylinder 3, the conveying plate 13 conveys the material to the discharge outlet 7.

As shown in fig. 2, the conveying plate 13 is provided with a plurality of lifting plates 14, the lifting plates 14 can lift the material in the roller body 1 and then fall down, so that the contact rate of the material and hot air can be increased, and the drying of the material is accelerated.

The implementation principle of the embodiment is as follows: after materials are put into the inner barrel 4 from the feed inlet 6, the servo motor 18 is started, the roller body 1 starts to rotate under the action of the first gear 19 and the second gear 20, under the action of the conveying plate 13, the materials can move axially in the roller body 1, meanwhile, hot gas is introduced into the flow guide pipeline 9, the hot gas in the flow guide pipeline 9 flows out from the flow guide branch pipe 10, then the gas-liquid separator is contacted with the materials in the inner cylinder 4, the arrangement of the diversion pipeline 9 and the diversion branch pipe 10 can avoid the short contact time between hot gas and the materials caused by the hot gas rapidly passing through the inner cylinder 4 when the hot gas is directly introduced into the inner cylinder 4, thereby increasing the utilization rate of hot air and enhancing the drying effect, the material lifting plate 14 is arranged on the conveying plate 13 and can lift the material in the roller body 1, then fall down, thereby increasing the contact area of the materials and the hot air, increasing the utilization rate of the hot air and improving the drying efficiency.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The low-energy-consumption three-return-stroke drying roller comprises a roller body (1), wherein the roller body (1) comprises an outer barrel (2), a middle barrel (3) and an inner barrel (4) which are coaxially arranged, the middle barrel (3) is fixedly connected with the outer barrel (2), the inner barrel (4) is fixedly connected with the middle barrel (3), one end of the inner barrel (4) is provided with an air inlet (5) and a feed inlet (6), one end, far away from the feed inlet (6), of the outer barrel (2) is provided with a discharge hole (7), the discharge hole (7) is positioned at the bottom, and a support frame (8) for supporting the outer barrel (2) is arranged on the outer barrel (2); the method is characterized in that: the utility model discloses a feed inlet, including inner tube (4), coaxial diversion pipeline (9) that is provided with in inner tube (4), diversion pipeline (9) and support frame (8) fixed connection, diversion pipeline (9) rotate with inner tube (4) and are connected, be provided with water conservancy diversion branch pipe (10) on diversion pipeline (9), the one end that feed inlet (6) were kept away from in water conservancy diversion branch pipe (10) is sealed, water conservancy diversion branch pipe (10) are provided with a plurality ofly along water conservancy diversion pipeline (9) axial, be provided with a plurality of gas pockets (11) along circumference on water conservancy diversion branch pipe (10).

2. The low energy consumption three-pass drying drum of claim 1, wherein: the flow guide branch pipes (10) are arranged in a plurality along the circumferential direction of the flow guide pipeline (9).

3. The low energy consumption three-pass drying drum of claim 2, wherein: the inner wall of the inner barrel (4) is fixedly connected with a stabilizing frame (12), and the flow guide pipeline (9) penetrates through the stabilizing frame (12) and is rotatably connected with the stabilizing frame (12).

4. The low energy consumption three-pass drying drum of claim 3, wherein: the flow guide pipeline (9) is a straight flow guide pipe, the straight flow guide pipe comprises a plurality of sections of straight pipes with diameters reduced in sequence, and the straight pipes are coaxially and fixedly connected.

5. The low energy consumption three-pass drying drum of claim 4, wherein: conveying plates (13) used for conveying materials are arranged on the inner walls of the inner barrel (4), the middle barrel (3) and the outer barrel (2), the conveying plates (13) are obliquely arranged, the oblique direction of the conveying plates (13) on the inner barrel (4) is opposite to that of the conveying plates (13) on the middle barrel (3), and the oblique direction of the conveying plates (13) on the outer barrel (2) is the same as that of the conveying plates (13) on the inner barrel (4).

6. The low energy consumption three-pass drying drum of claim 5, wherein: the conveying plate (13) is provided with a plurality of lifting plates (14).

7. The low energy consumption three-pass drying drum of claim 6, wherein: a plurality of first supporting rods (15) are arranged between the inner barrel (4) and the middle barrel (3), and a plurality of second supporting rods (16) are arranged between the middle barrel (3) and the outer barrel (2).

8. The low energy consumption three-pass drying drum of claim 1, wherein: the outer wall of the outer barrel (2) is provided with heat insulation cotton.