CN213142709U - Regeneration drying roller - Google Patents
Regeneration drying roller Download PDFInfo
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- CN213142709U CN213142709U CN202021649004.XU CN202021649004U CN213142709U CN 213142709 U CN213142709 U CN 213142709U CN 202021649004 U CN202021649004 U CN 202021649004U CN 213142709 U CN213142709 U CN 213142709U
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Abstract
The utility model relates to a drying drum technical field, in particular to regeneration drying drum. The device comprises a combustion device, a roller, a feeding ring, a first discharging ring and a second discharging ring; the roller comprises an outer barrel and an inner barrel, the inner barrel is arranged in the outer barrel, the roller is divided into a double-barrel section and a single-barrel section, and a coarse material feeding channel and a fine material feeding channel are arranged on a feeding ring; fine recycled aggregate enters the outer cylinder body through the fine material feeding channel, passes through the outer cylinder body of the double-cylinder section and is discharged from the second discharging ring; coarse recycled aggregate enters the inner cylinder body through the coarse material feeding channel, sequentially passes through the inner cylinder body and the outer cylinder body of the single-cylinder section and then is discharged from the first discharging ring. The coarse recycled aggregate and the fine recycled aggregate are heated separately, so that the heating and drying requirements of the recycled aggregates in different states are met, and the problem of overheating and aging of the fine recycled aggregate is avoided; the fine recycled aggregate and the outer wall of the inner cylinder body are in contact heat exchange, so that the heat energy utilization rate of the roller is improved, and the effect of saving energy consumption is achieved.
Description
Technical Field
The utility model relates to a drying drum technical field, in particular to regeneration drying drum.
Background
The asphalt pavement needs to be dismantled and rebuilt after reaching the designed service life, the waste materials of the asphalt pavement are recycled, and the asphalt pavement still has higher utilization value. In the plant mixing hot recycling technology, cold waste asphalt mixtures with various grades are simultaneously sent into a drying and heating system for drying and heating treatment, and then are mixed with new aggregates, asphalt, mineral powder and the like in a certain proportion, and finally qualified finished asphalt mixture materials are produced. The waste asphalt mixture has coarse materials with large particle size and fine materials with small particle size, in the prior art, the coarse materials and the fine materials enter the drying roller to be heated at the same time, the heating uniformity of the coarse materials and the fine materials is difficult to ensure, and the fine aggregate is easier to be heated than the coarse aggregate under the same environment, so that the temperature of the fine materials is ultrahigh in the heating process, and the asphalt on the surface of the fine materials is seriously aged. Because the proportion of the asphalt content in the fine materials to the waste asphalt mixture is large, once the fine materials generate the aging problem, the quality of the waste asphalt mixture is greatly reduced, and the quality of finished products is influenced finally.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a regeneration drying roller for separately heating thick and thin aggregates.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a regeneration drying roller which characterized in that: comprises a combustion device, a roller, a feeding ring, a first discharging ring and a second discharging ring;
the combustion device is arranged at one end of the roller and comprises a burner and a flame sleeve, the flame formed by the burner is positioned in the flame sleeve, and hot flue gas generated by the burner enters the roller;
the roller comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is arranged at one end in the outer cylinder, the overlapped part of the inner cylinder and the outer cylinder forms a double-cylinder section of the roller, and the other part forms a single-cylinder section of the roller; the first discharging ring and the feeding ring are sleeved at two ends of the roller respectively, the first discharging ring is positioned between the roller and the combustion device, the feeding ring is provided with a coarse material feeding channel communicated into the inner cylinder and a fine material feeding channel communicated between the inner cylinder and the outer cylinder, the second discharging ring is arranged outside the middle section of the outer cylinder, and a blanking port communicated with the second discharging ring is arranged on the outer cylinder positioned at the double-cylinder section;
fine recycled aggregate enters the outer cylinder body through the fine material feeding channel, passes through the outer cylinder body of the double-cylinder section and is discharged from the second discharging ring; coarse recycled aggregate enters the inner cylinder body through the coarse material feeding channel, sequentially passes through the inner cylinder body and the outer cylinder body of the single-cylinder section and then is discharged from the first discharging ring.
Further, the inner cylinder and the outer cylinder are coaxially arranged and synchronously rotate, and the length of the inner cylinder is shorter than that of the outer cylinder.
Furthermore, the roller also comprises a coarse aggregate guide blade, a coarse aggregate lifting blade and a fine aggregate guide blade, wherein the inner wall of the inner cylinder body is successively provided with the coarse aggregate guide blade and the coarse aggregate lifting blade, the coarse aggregate guide blade is positioned at the connecting position of the inner cylinder body and the coarse aggregate feeding channel, the inner wall of the outer cylinder body of the double-cylinder section is provided with the fine aggregate guide blade, and the inner wall of the outer cylinder body of the single-cylinder section is provided with the coarse aggregate lifting blade.
Furthermore, a smoke exhaust channel communicated with the outer cylinder and the inner cylinder is arranged on the feeding ring.
Furthermore, a heat-insulating layer is arranged outside the outer cylinder of the single cylinder section.
As can be seen from the above description of the present invention, compared with the prior art, the combustion device of the regenerative drying drum provided by the present invention heats the regenerative aggregate by outputting hot flue gas through the flame sleeve, thereby avoiding the problem of local overheating of the regenerative aggregate by open fire; the coarse recycled aggregate and the fine recycled aggregate are heated separately, the heating time of the coarse aggregate is long, and the heating time period of the fine aggregate meets the heating and drying requirements of the recycled aggregates in different states, so that the problem of overheating and aging of the fine recycled aggregate is avoided; the fine recycled aggregate is heated by heat flow of hot smoke and is in contact heat exchange with the outer wall of the inner cylinder, so that the heat utilization rate of the roller is improved, and the effect of saving energy consumption is achieved.
Drawings
Fig. 1 is the structure schematic diagram of the utility model relates to a regeneration drying roller.
The labels in the figure correspond to the following: 1. the device comprises a combustion device, 11 burners, 12 flame sleeves, 2 rollers, 2a double-cylinder sections, 2b single-cylinder sections, 21 outer cylinder bodies, 211 heat insulation layers, 212 blanking ports, 22 inner cylinder bodies, 23 coarse aggregate guide blades, 24 coarse aggregate lifting blades, 25 fine aggregate guide blades, 3 feeding rings, 31 coarse aggregate feeding channels, 32 fine aggregate feeding channels, 33 smoke exhaust channels, 4 first discharging rings and 5 second discharging rings.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Referring to fig. 1, the regenerative drying drum includes a combustion device 1, a drum 2, a feeding ring 3, a first discharging ring 4, and a second discharging ring 5.
The combustion device 1 is arranged at one end of the roller 2, the combustion device 1 comprises a combustor 11 and a flame sleeve 12, flame formed by the combustor 11 is positioned in the flame sleeve 12, and hot flue gas generated by the combustor 11 enters the roller 2;
the roller 2 comprises an outer roller body 21 and an inner roller body 22, the inner roller body 22 and the outer roller body 21 are coaxially arranged and synchronously rotate, the length of the inner roller body 22 is shorter than that of the outer roller body 21, the inner roller body 22 is arranged at one end in the outer roller body 21, a double-roller section 2a of the roller 2 is formed at the overlapping part of the inner roller body 22 and the outer roller body 21, a single-roller section 2b of the roller 2 is formed at the other part, and a heat-insulating layer 211 is arranged outside the outer roller body 21 of the single-roller section 2 b; the first discharging ring 4 and the feeding ring 3 are respectively sleeved at two ends of the roller 2, the first discharging ring 4 is positioned between the roller 2 and the combustion device 1, the feeding ring 3 is provided with a coarse material feeding channel 31 communicated into the inner cylinder 22 and a fine material feeding channel 32 communicated between the inner cylinder 22 and the outer cylinder 21, the second discharging ring 5 is arranged outside the middle section of the outer cylinder 21, and the outer cylinder 21 positioned at the double-cylinder section 2a is provided with a blanking port 212 communicated with the second discharging ring 4;
the roller 2 also comprises a coarse aggregate guide blade 23, a coarse aggregate lifting blade 24 and a fine aggregate guide blade 25, the inner wall of the inner cylinder 22 is successively provided with the coarse aggregate guide blade 23 and the coarse aggregate lifting blade 24, the coarse aggregate guide blade 23 is positioned at the connecting position of the inner cylinder 22 and the coarse aggregate feeding channel 31, the inner wall of the outer cylinder 21 of the double-cylinder section 2a is provided with the fine aggregate guide blade 25, and the inner wall of the outer cylinder of the single-cylinder section 2b is provided with the coarse aggregate lifting blade 24;
the feeding ring 3 is provided with a smoke exhaust channel 33 communicated with the outer cylinder 21 and the inner cylinder 22;
the fine recycled aggregate enters the outer cylinder 21 through the fine material feeding channel 31, passes through the outer cylinder 21 of the double-cylinder section 2a and is discharged from the second discharging ring 5; coarse recycled aggregate enters the inner cylinder 22 through the coarse material feeding channel 31, sequentially passes through the inner cylinder 22 and the outer cylinder 21 of the single-cylinder section 2b, and is discharged from the first discharging ring 4.
The working principle of the regeneration drying roller is as follows:
dividing the recycled material into coarse recycled aggregate and fine recycled aggregate according to the particle size;
hot flue gas generated by a burner of the combustion device enters the roller, and flame generated by the hot flue gas is positioned in the flame sleeve and does not enter the roller, so that the condition that open fire heats the recycled aggregate locally is avoided; the inside of the roller adopts a countercurrent heating mode;
coarse recycled aggregate enters the inner cylinder body through a coarse material feeding channel of the feeding ring, the coarse recycled aggregate is conveyed backwards through the coarse aggregate guiding blade and the coarse aggregate lifting blade in sequence, leaves the inner cylinder body and enters the outer cylinder body of the single cylinder section, is conveyed backwards through the coarse aggregate lifting blade of the outer cylinder section continuously, leaves the outer cylinder body and enters the first discharging ring to be discharged, and the coarse recycled aggregate passes through the length of the whole section of the roller and is heated and dried under hot smoke;
the fine recycled aggregate enters between the inner cylinder and the outer cylinder through a fine material feeding channel of the feeding ring, is conveyed backwards through the fine aggregate guiding blades, falls out of the blanking port when reaching the tail end of the double-cylinder section and enters the second discharging ring to be discharged, is discharged only through the length of the half-section cylinder, and is heated and dried under the contact heat exchange of the heat flow heating of hot flue gas and the outer wall of the inner cylinder.
The coarse recycled aggregate and the fine recycled aggregate are heated separately, the heating time of the coarse aggregate is long, and the heating time period of the fine aggregate meets the heating and drying requirements of the recycled aggregates in different states, so that the problem of overheating and aging of the fine recycled aggregate is avoided; the fine recycled aggregate is heated by heat flow of hot smoke and is in contact heat exchange with the outer wall of the inner cylinder, so that the heat utilization rate of the roller is improved, and the effect of saving energy consumption is achieved.
The above-mentioned only be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (5)
1. The utility model provides a regeneration drying roller which characterized in that: comprises a combustion device, a roller, a feeding ring, a first discharging ring and a second discharging ring;
the combustion device is arranged at one end of the roller and comprises a burner and a flame sleeve, the flame formed by the burner is positioned in the flame sleeve, and hot flue gas generated by the burner enters the roller;
the roller comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is arranged at one end in the outer cylinder, the overlapped part of the inner cylinder and the outer cylinder forms a double-cylinder section of the roller, and the other part forms a single-cylinder section of the roller; the first discharging ring and the feeding ring are sleeved at two ends of the roller respectively, the first discharging ring is positioned between the roller and the combustion device, the feeding ring is provided with a coarse material feeding channel communicated into the inner cylinder and a fine material feeding channel communicated between the inner cylinder and the outer cylinder, the second discharging ring is arranged outside the middle section of the outer cylinder, and a blanking port communicated with the second discharging ring is arranged on the outer cylinder positioned at the double-cylinder section;
fine recycled aggregate enters the outer cylinder body through the fine material feeding channel, passes through the outer cylinder body of the double-cylinder section and is discharged from the second discharging ring; coarse recycled aggregate enters the inner cylinder body through the coarse material feeding channel, sequentially passes through the inner cylinder body and the outer cylinder body of the single-cylinder section and then is discharged from the first discharging ring.
2. The regenerative drying drum of claim 1, wherein: the inner cylinder and the outer cylinder are coaxially arranged and synchronously rotate, and the length of the inner cylinder is shorter than that of the outer cylinder.
3. The regenerative drying drum of claim 1, wherein: the roller also comprises a coarse aggregate guide blade, a coarse aggregate lifting blade and a fine aggregate guide blade, wherein the inner wall of the inner cylinder body is successively provided with the coarse aggregate guide blade and the coarse aggregate lifting blade, the coarse aggregate guide blade is positioned at the connecting position of the inner cylinder body and a coarse aggregate feeding channel, the inner wall of the outer cylinder body of the double-cylinder section is provided with the fine aggregate guide blade, and the inner wall of the outer cylinder body of the single-cylinder section is provided with the coarse aggregate lifting blade.
4. The regenerative drying drum of claim 1, wherein: and a smoke exhaust channel communicated with the outer cylinder and the inner cylinder is arranged on the feeding ring.
5. The regenerative drying drum of claim 1, wherein: the outer cylinder body of the single cylinder section is externally provided with a heat insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021649004.XU CN213142709U (en) | 2020-08-10 | 2020-08-10 | Regeneration drying roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021649004.XU CN213142709U (en) | 2020-08-10 | 2020-08-10 | Regeneration drying roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213142709U true CN213142709U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021649004.XU Active CN213142709U (en) | 2020-08-10 | 2020-08-10 | Regeneration drying roller |
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| Country | Link |
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| CN (1) | CN213142709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116377798A (en) * | 2023-03-30 | 2023-07-04 | 廊坊德基机械科技有限公司 | Old asphalt mixture regenerating, drying and heating method and system |
| CN118639497A (en) * | 2024-08-14 | 2024-09-13 | 福建省铁拓机械股份有限公司 | Counterflow type plant-mixed heat regeneration drying roller |
-
2020
- 2020-08-10 CN CN202021649004.XU patent/CN213142709U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116377798A (en) * | 2023-03-30 | 2023-07-04 | 廊坊德基机械科技有限公司 | Old asphalt mixture regenerating, drying and heating method and system |
| CN116377798B (en) * | 2023-03-30 | 2023-10-20 | 廊坊德基机械科技有限公司 | Old asphalt mixture regenerating, drying and heating method and system |
| CN118639497A (en) * | 2024-08-14 | 2024-09-13 | 福建省铁拓机械股份有限公司 | Counterflow type plant-mixed heat regeneration drying roller |
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