CN211689758U - Heat regeneration drying cylinder - Google Patents
Heat regeneration drying cylinder Download PDFInfo
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- CN211689758U CN211689758U CN201922309840.7U CN201922309840U CN211689758U CN 211689758 U CN211689758 U CN 211689758U CN 201922309840 U CN201922309840 U CN 201922309840U CN 211689758 U CN211689758 U CN 211689758U
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Abstract
A thermal regeneration drying cylinder belongs to the field of asphalt pavement regeneration equipment and solves the problems of low thermal efficiency and non-uniform heating. In the interior of the drying cylinder body, a rake-shaped lifting blade group, a flexible blade group and a stirring blade group are sequentially arranged. The flexible blade group is provided with 4 ~ 16 rows in the axial of stoving barrel, and the radial quantity of each row of flexible blade in the stoving barrel is 10 ~ 40, evenly arranges. The stirring blade group is provided with 1 ~ 3 rows in the axial of stoving barrel, and the radial quantity of stirring blade group in the stoving barrel of every row is 6 ~ 24 groups, and the even arrangement. The smoke outlet is arranged above the discharge box, the discharge port is arranged at the bottom of the discharge box, a smoke dust separator is arranged in the discharge box and below the smoke outlet, and a dust collecting groove is arranged below the smoke dust separator. The drying device has the characteristics of full and uniform heating, accurate material temperature control, high thermal efficiency, no material adhesion in the drying cylinder, no blockage and easy cleaning, and is suitable for plant-mixed thermal regeneration equipment to dry and heat RAP materials.
Description
Technical Field
The utility model belongs to bituminous paving regeneration facility field mainly relates to a thermal regeneration stoving section of thick bamboo of recycling after milling and planing reclaimed materials (RAP) to bituminous paving and drying and heating.
Background
As the road construction of China steps into the rapid development period, a large number of high-grade roads need to be renovated and rebuilt. The plant-mixed asphalt thermal regeneration technology adopts a special method, and waste materials are dried, heated and recycled by using rotary drum drying equipment. Not only can save a large amount of asphalt and sand materials and save engineering investment, but also is beneficial to disposing waste materials, saving energy and protecting environment, thereby having remarkable economic and social benefits. These drum drying devices have a number of disadvantages in use. Such as: the blades in the roller are unreasonably designed and arranged, and the comprehensive heat efficiency of the roller is not high; the reclaimed materials are heated unevenly, and the equipment is easy to bond; the mixing condition after the coarse and fine regeneration separation heating is not considered, so that coarse and fine RAPs in the storage bin are separated in a layered mode; the problems of air flue blockage, fan abrasion, condensation blockage in a main dust remover and the like caused by smoke containing a large amount of RAP fine powder are solved.
Disclosure of Invention
The utility model aims at providing a can eliminate known drying equipment's defect, mill the hot regeneration stoving section of thick bamboo of preparing into asphalt concrete again after the reclaimed materials (RAP) stoving heating with bituminous paving. This thermal regeneration drying cylinder adopts the following current heating mode, can fully evenly heat the RAP material to suitable temperature to stir the RAP in the section of thick bamboo, carry out gravity dust removal processing in the play workbin to the flue gas that produces.
The utility model is realized by the following technical proposal, comprising a frame, a burner, a combustion chamber, a feeding box, a drying cylinder, a driving device and a discharging box; the combustion chamber, the driving device, the feeding box and the discharging box are arranged on the rack, the drying cylinder is arranged on the driving device, and two ends of the drying cylinder are respectively contained in the feeding box and the discharging box; the method is characterized in that: a rake-shaped lifting blade group, a flexible blade group and a stirring blade group are sequentially arranged in the drying cylinder; the rake-shaped lifting blade group is positioned at the feeding end of the drying cylinder body, and the stirring blade group is positioned at the discharging end of the drying cylinder body;
the flexible blade group is provided with 4-16 rows in the axial direction of the drying cylinder, and each row of flexible blades is uniformly arranged with 10-40 flexible blades in the radial direction of the drying cylinder;
the stirring blade groups are arranged in 1-3 rows in the axial direction of the drying cylinder, and the number of each row of stirring blade groups in the radial direction of the drying cylinder is 6-24 groups and the stirring blade groups are uniformly arranged;
the discharge box comprises a smoke outlet, a smoke dust separator, a dust collecting groove and a discharge hole; the smoke outlet is arranged above the discharge box, the discharge port is arranged at the bottom of the discharge box, a smoke dust separator is arranged in the discharge box and below the smoke outlet, and a dust collecting groove is arranged below the smoke dust separator.
The flexible blades are arranged on the inner surface of the drying cylinder body along the longitudinal direction of the drying cylinder body, and the flexible blades in two adjacent rows of flexible blade groups are arranged in a staggered manner; each flexible blade consists of 4-10 chains, two ends of each chain are sleeved on a circular upright post through mounting rings, each mounting ring is provided with an adjusting bolt for adjusting the tightness of the chain, and the upright post is mounted on the inner wall of the drying barrel.
The stirring blade group comprises stirring blades and ribs, wherein 5-12 stirring blades are obliquely staggered in a herringbone manner and connected with the ribs, and are arranged on the inner wall of the drying cylinder body through angle steel seats.
The smoke dust separator is provided with louver type baffle plates, the louver type baffle plates are positioned on two sides of the smoke dust separator, are obliquely and uniformly arranged from top to bottom to the outer side and below, and are supported by upright rib plates; the dust collecting groove below the smoke dust separator extends downwards to the rear lower part of the discharge box.
The beneficial effects of the utility model are that, eliminated known drying equipment's defect, can stir RAP in a section of thick bamboo to suitable temperature with the abundant even heating of RAP material, the thickness RAP material of separation heating mixes the stirring fast repeatedly before the ejection of compact, prevents that the segregation phenomenon after the ejection of compact from producing. The dust removal facility is directly arranged in the discharge box, and gravity dust removal treatment is carried out on the generated flue gas in the discharge box. The installation, the use and the maintenance are convenient, the space is saved, and the recycled dust is combined with the heated RAP material for use. The drying device has the characteristics of full and uniform heating, accurate material temperature control, high thermal efficiency, no material adhesion in the drying cylinder, no blockage and easy cleaning, and is suitable for plant-mixed thermal regeneration equipment to dry and heat RAP materials.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the construction of the flexible blade assembly;
FIG. 4 is a schematic structural view of a flexible blade;
FIG. 5 is a schematic structural view of a stirring blade group;
FIG. 6 is a schematic cross-sectional view of the discharge box;
FIG. 7 is a schematic view of a louvered baffle.
In the figure, 1 is a burner, 2 is a combustion chamber, 3 is a feeding box, 4 is a large rolling ring, 5 is a drying cylinder, 6 is a driving device, 7 is a frame, 8 is a discharging box, 9 is a feeding hole, 10 is a smoke outlet, 11 is a discharging hole, 12 is a rake-shaped lifting blade group, 13 is a flexible blade group, 14 is a stirring blade group, 15 is a smoke separator, 16 is a dust collecting groove, 17 is a mounting ring, 18 is a vertical column, 19 is an adjusting bolt, 20 is a feeding groove, 21 is a vertical rib plate, 22 is a shutter type baffle plate, 23 is a stirring blade, 24 is a rib, and 25 is an angle steel seat; the upward arrows in fig. 6 indicate the smoke flow direction and the downward arrows indicate the dust flow direction.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings:
comprises a frame 7, a burner 1, a combustion chamber 2, a feeding box 3, a drying cylinder 5, a driving device 6 and a discharging box 8. The combustion chamber 2, the driving device 6, the feeding box 3 and the discharging box 8 are arranged on the rack 7, the drying cylinder 5 is arranged on the driving device 6, and two ends of the drying cylinder 5 are respectively contained in the feeding box 3 and the discharging box 8. A rake-shaped lifting blade group 12, a flexible blade group 13 and a stirring blade group 14 are sequentially arranged in the drying cylinder body 5; the rake-shaped lifting blade group 12 is positioned at the feeding end of the drying cylinder 5, and the stirring blade group 14 is positioned at the discharging end of the drying cylinder 5.
The flexible blade group 13 is provided with 8 rows in the axial direction of the drying cylinder 5, and each row of flexible blades is 16 in number in the radial direction of the drying cylinder 5 and is uniformly arranged.
The stirring blade group 14 is provided with 1 row in the axial direction of the drying cylinder, and the number of the stirring blade groups in each row in the radial direction of the drying cylinder 5 is 10 groups, and the stirring blade groups are uniformly arranged.
The discharging box 8 comprises a smoke outlet 10, a smoke separator 15, a dust collecting groove 16 and a discharging hole 11; the smoke outlet 10 is arranged on the upper surface of the discharging box 8, the discharging port 11 is arranged at the bottom of the discharging box 8, a smoke dust separator 15 is arranged in the discharging box 8 and below the smoke outlet 10, and a dust collecting groove 16 is arranged below the smoke dust separator 15.
The flexible blades are arranged on the inner surface of the drying cylinder 5 along the longitudinal direction of the drying cylinder 5, and the flexible blades in two adjacent rows of flexible blade groups are arranged in a staggered manner; each flexible blade consists of 6 chains, two ends of each chain are sleeved on a circular upright post 18 through mounting rings 17, each mounting ring 17 is provided with an adjusting bolt 19 for adjusting the tightness of the chain, and the upright post 18 is arranged on the inner wall of the drying cylinder 5.
The stirring blade group 14 is composed of stirring blades 23 and ribs 24, wherein 7 stirring blades 23 are obliquely staggered in a herringbone manner and connected with the ribs 24, and are arranged on the inner wall of the drying cylinder body 5 through angle steel seats 25.
The smoke dust separator 15 is a smoke dust separator provided with louver type baffle plates 22, the louver type baffle plates 22 are positioned at two sides of the smoke dust separator 15, are uniformly arranged in an inclined manner from top to bottom to the outer side and the lower side, and are supported by vertical rib plates 21; a dust chute 16 below the dust separator 15 extends down to the rear below the discharge bin 8.
A feed inlet 9 for RAP materials to be dried is arranged at the upper part of a feed box 3, a burner 1 for providing a heat source is connected with a combustion chamber 2 for burning flame in the combustion chamber, the combustion chamber 2 is connected with the feed box 3, and the combustion chamber 2 is provided with a temperature sensor so as to monitor the temperature of hot air. When the driving device 6 drives the drying cylinder 5 to rotate, RAP materials enter the drying cylinder 5 from the feeding groove 20 through the feeding hole 9, are pushed by the rake-shaped lifting blade group 12 and are heated primarily, thick and thin RAP materials are separated by the flexible blade group 13, the thin RAP materials are accumulated at the bottom of the side, and the thick RAP materials are lifted and form a material curtain. Therefore, the thick and thin RAP material can be heated to a similar degree, the integral uniformity of RAP material heating is ensured, and the accuracy of temperature control is improved. The adjusting bolt 19 can adjust the tightness degree of the flexible blade group 13 in a proper amount in the debugging process, and the flexible blade group 13 can shake properly while the thick and thin RAP are ensured to be separated and heated fully, so that the material falls off and is not adhered to the cylinder, and a better using effect is obtained. The heat efficiency of the whole drying drum is improved. At the discharging end of the drying cylinder 5, a stirring blade group 14 is arranged, which can rapidly and repeatedly mix and stir the coarse and fine RAP materials before discharging, thereby preventing the generation of segregation phenomenon.
The flue gas generated when the drying cylinder 5 works moves upwards in the discharging box 8 under the action of power suction, when the flue gas passes through the smoke dust separator 15, the returned flue gas is discharged through the smoke outlet 10 after being changed to the direction, and dust contained in the flue gas is settled downwards under the action of inertia to fall into the dust collecting tank 16 and is conveyed downwards through the discharging hole 11 along with the heated RAP material. Therefore, the phenomena that the air duct is blocked by RAP fine dust, the fan blade is abraded, the normal operation of the equipment is influenced by the dew and blockage of the main dust remover and the like are avoided.
Claims (4)
1. A heat regeneration drying cylinder comprises a rack (7), a burner (1), a combustion chamber (2), a feeding box (3), a drying cylinder body (5), a driving device (6) and a discharging box (8); the combustion chamber (2), the driving device (6), the feeding box (3) and the discharging box (8) are arranged on the rack (7), the drying cylinder (5) is arranged on the driving device (6), and two ends of the drying cylinder (5) are respectively contained in the feeding box (3) and the discharging box (8); the method is characterized in that: a harrow-shaped lifting blade group (12), a flexible blade group (13) and a stirring blade group (14) are sequentially arranged in the drying cylinder body (5); the harrow-shaped lifting blade group (12) is positioned at the feeding end of the drying cylinder body (5), and the stirring blade group (14) is positioned at the discharging end of the drying cylinder body (5);
the flexible blade group (13) is provided with 4-16 rows in the axial direction of the drying cylinder (5), and each row of flexible blades is uniformly arranged in the radial direction of the drying cylinder (5) and has the number of 10-40;
the stirring blade groups (14) are arranged in 1-3 rows in the axial direction of the drying cylinder (5), and the number of each row of stirring blade groups in the radial direction of the drying cylinder (5) is 6-24 groups and the stirring blade groups are uniformly arranged;
the discharge box (8) comprises a smoke outlet (10), a smoke dust separator (15), a dust collecting groove (16) and a discharge hole (11); the smoke outlet (10) is arranged on the discharging box (8), the discharging port (11) is arranged at the bottom of the discharging box (8), a smoke dust separator (15) is arranged in the discharging box (8) and below the smoke outlet (10), and a dust collecting groove (16) is arranged below the smoke dust separator (15).
2. The heat regenerative dryer cartridge of claim 1, wherein: the flexible blades are arranged on the inner surface of the drying cylinder (5) along the longitudinal direction of the drying cylinder (5), and the flexible blades in two adjacent rows of flexible blade groups are arranged in a staggered manner; each flexible blade consists of 4-10 chains, two ends of each chain are sleeved on a circular upright post (18) through mounting rings (17), each mounting ring (17) is provided with an adjusting bolt (19) for adjusting the tightness of the chain, and the upright post (18) is mounted on the inner wall of the drying barrel body (5).
3. The heat regenerative dryer cartridge of claim 1, wherein: the stirring blade group (14) consists of stirring blades (23) and ribs (24), wherein 5-12 stirring blades (23) are obliquely staggered in a herringbone manner and connected with the ribs (24), and are arranged on the inner wall of the drying cylinder body (5) through angle steel seats (25).
4. The heat regenerative dryer cartridge of claim 1, wherein: the smoke dust separator (15) is a smoke dust separator provided with louver type baffle plates (22), the louver type baffle plates (22) are positioned on two sides of the smoke dust separator (15), are uniformly arranged in an inclined manner from top to bottom towards the outer side and downwards, and are supported by vertical rib plates (21); a dust collecting groove (16) below the smoke dust separator (15) extends downwards to the rear lower part of the discharge box (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309840.7U CN211689758U (en) | 2019-12-20 | 2019-12-20 | Heat regeneration drying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309840.7U CN211689758U (en) | 2019-12-20 | 2019-12-20 | Heat regeneration drying cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211689758U true CN211689758U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922309840.7U Active CN211689758U (en) | 2019-12-20 | 2019-12-20 | Heat regeneration drying cylinder |
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| CN (1) | CN211689758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652928A (en) * | 2021-10-20 | 2021-11-16 | 徐州步瑞智新材料研究院有限公司 | Drying cylinder for asphalt regeneration equipment |
| CN117026727A (en) * | 2023-10-10 | 2023-11-10 | 福建省铁拓机械股份有限公司 | Self-cleaning drying roller for asphalt mixture plant-mixing thermal regeneration equipment |
-
2019
- 2019-12-20 CN CN201922309840.7U patent/CN211689758U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652928A (en) * | 2021-10-20 | 2021-11-16 | 徐州步瑞智新材料研究院有限公司 | Drying cylinder for asphalt regeneration equipment |
| CN117026727A (en) * | 2023-10-10 | 2023-11-10 | 福建省铁拓机械股份有限公司 | Self-cleaning drying roller for asphalt mixture plant-mixing thermal regeneration equipment |
| CN117026727B (en) * | 2023-10-10 | 2024-01-02 | 福建省铁拓机械股份有限公司 | Self-cleaning drying roller for asphalt mixture plant-mixing thermal regeneration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210708 Address after: 114051 Liaoning city of Anshan province high tech Zone Anqian Road No. 294 Patentee after: Anshan Anzhong Mining Machinery Co.,Ltd. Address before: Anshan City, Liaoning Province victory road 114042 Lishan District No. 900 Patentee before: ANSHAN HEAVY DUTY MINING MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |