CN212316602U - Low-temperature catalytic gas medium-long wave drying drum - Google Patents
Low-temperature catalytic gas medium-long wave drying drum Download PDFInfo
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- CN212316602U CN212316602U CN201922387772.6U CN201922387772U CN212316602U CN 212316602 U CN212316602 U CN 212316602U CN 201922387772 U CN201922387772 U CN 201922387772U CN 212316602 U CN212316602 U CN 212316602U
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Abstract
The utility model belongs to the technical field of asphalt mixing plant, a long wave drying drum in low temperature catalysis gas is related to, including the frame, set up fixed drying cylinder in the frame, rotatory drying cylinder and the coaxial setting of fixed drying cylinder, and rotatory drying cylinder can rotate for fixed drying cylinder, form the old feeding district that gathers materials between rotatory drying cylinder and the fixed drying cylinder, the old feeding district that gathers materials is equipped with the old feed inlet that gathers materials, and the fixed drying cylinder is provided with the outer winnowing pan that is used for carrying the old material that gathers materials along the axial corresponding to the surface in old feeding district that gathers materials. The drying roller effectively reduces energy consumption and asphalt smoke by changing a heat transfer mode.
Description
Technical Field
The utility model belongs to the technical field of asphalt concrete mixing equipment, a long wave drying drum in low temperature catalysis gas is related to.
Background
In the production process of a regenerated asphalt mixture (RAP), the drying temperature rise of new aggregates and old aggregates (containing asphalt) is realized by respectively heating the aggregates by using heat energy generated by combustion of a combustion oil burner or a gas burner in a direct-fired drying roller at present, and the heat transfer characteristic of the mode is that heat is transferred between high-temperature flue gas and the aggregates through convection, but in the heating process of the old aggregates, the asphalt is aged due to the heat transfer of the mode because of the components of the asphalt, the process temperature at the end of drying is 120-150 ℃, the temperature concentration of the asphalt flue gas in the drying temperature rise process is very high, the convection heat transfer air quantity is quite large (the yield of 120 tons per hour is large and 25000 cubic 150 ℃ of asphalt flue gas is generated), the quantity is large, the treatment is difficult, and the pollution is serious.
Disclosure of Invention
The utility model provides a to above-mentioned problem, provide a long wave drying drum in low temperature catalysis gas, this drying drum is through changing heat transfer mode, effectively reduces the energy consumption and reduces the production of pitch flue gas.
According to the technical scheme of the utility model: the utility model provides a long wave drying drum in low temperature catalysis gas which characterized in that: the drying machine comprises a rack, wherein a fixed drying cylinder is arranged on the rack, a rotary drying cylinder and the fixed drying cylinder are coaxially arranged, the rotary drying cylinder can rotate relative to the fixed drying cylinder, an old aggregate feeding area is formed between the rotary drying cylinder and the fixed drying cylinder, the old aggregate feeding area is provided with an old aggregate feeding hole, and an outer winnowing pan for conveying old aggregates along the axial direction is arranged on the outer surface of the fixed drying cylinder corresponding to the old aggregate feeding area of the rotary drying cylinder;
the inner cavity of the rotary drying drum forms a new aggregate feeding area, the inner wall of the rotary drying drum is provided with an inner material plate for conveying new aggregates along the axial direction, the fixed drying drum is provided with an old aggregate discharging port for communicating the new aggregate feeding area with the old aggregate feeding area, one axial side of the rotary drying drum is provided with a gas burner, and the other axial side of the rotary drying drum is provided with a flue gas outlet and a new aggregate feeding port;
a new aggregate feed opening communicated with the new aggregate feeding area and an old aggregate feed opening communicated with the old aggregate feeding area are formed in the fixed drying cylinder;
the fixed drying cylinder upper surface sets up a plurality of low temperature catalysis gas medium-long wave heating module along the axial, every all set up a gas valve on the low temperature catalysis gas medium-long wave heating module to heating old aggregate feeding district, rotatory drying drum rotates at the during operation.
As a further improvement of the utility model, the outer winnowing pan is the heliciform and sets up in the surface of rotatory drying drum, every the equal arcwall face of working face of outer winnowing pan.
As a further improvement, the axial both ends of rotatory drying drum are sealing connection follower, every respectively the follower respectively with the last drive wheel tight fit that sets up of rotatory drying drum to by the operation of drive wheel drive, the drive wheel is by the actuating mechanism drive operation that sets up in the frame.
As a further improvement of the utility model, the flue gas outlet is arranged above the new aggregate feeding port.
As a further improvement, the long wave heating module runs through along the axial in the low temperature catalysis gas and sets up in fixed drying section of thick bamboo top, and the long wave heating module is 93 along the contained angle of circumferencial direction both ends and fixed drying section of thick bamboo central line in the low temperature catalysis gas.
The technical effects of the utility model reside in that: the utility model has simple structure, and does not need a large air quantity fan to support combustion because of the low temperature catalysis compared with the direct combustion, so the volume of the device is reduced, and the electric drive power is reduced; the utility model discloses a low temperature catalysis gas infrared device has fully utilized the infrared wavelength band of 2.3-5.5um medium-long wave, just in time with RAP medium-old aggregate in pitch and the wavelength adaptation of building stones, medium-long wave's characteristics are that energy density is big does not need energy conduction medium, the penetrating power is strong, the old material that is heated leans on the resonance conduction between the molecule, the old aggregate of heating is from inside to outside synchronous heating, the heat rate improves; the low-heat catalytic gas device used by the utility model has low temperature of the catalyst, no open fire, safety and explosion prevention, and is very easy to burn in the heating process due to the open fire in the existing RAP production process (because a large amount of combustible asphalt smoke with high temperature and high concentration can be generated in the heating process); the utility model adopts low temperature catalytic oxidation, and no nitrogen oxide is generated.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is an arrow mark illustration.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In the drawings 1-3, the device comprises a gas burner 1, a rotary drying drum 2, a fixed drying drum 3, a low-temperature catalytic gas long medium wave heating module 4, an external winnowing pan 5, an internal material plate 6, a driving mechanism 7, a frame 8, a driven wheel 9, a driving wheel 10, a gas valve 11, a new aggregate discharge port 12, a new aggregate feed port 13, an old aggregate feed port 14, a flue gas outlet 15, a new aggregate feed port 16 and the like.
As shown in fig. 1-4, the utility model relates to a long wave drying drum in low temperature catalytic gas, including frame 8, set up fixed drying cylinder 3 in the frame 8, rotatory drying cylinder 2 and the coaxial setting of fixed drying cylinder 3, and rotatory drying cylinder 2 can rotate for fixed drying cylinder 3, form old feeding district that gathers materials between rotatory drying cylinder 2 and the fixed drying cylinder 3, new feeding district that gathers materials is equipped with new feed inlet 16 that gathers materials, and fixed drying cylinder 3 is provided with the outer winnowing pan 5 that is used for carrying old aggregate along the axial in the surface of fixed drying cylinder 3 corresponding to old feeding district that gathers materials.
The inner chamber of rotary drying drum 2 forms the new feeding district that gathers materials, and rotary drying drum 2's inner wall setting is used for carrying the interior flitch 6 that newly gathers materials along the axial, is equipped with new discharge gate 12 that gathers materials on rotary drying drum 2, and new discharge gate 12 that gathers materials is used for communicateing new feeding district and the old feeding district that gathers materials, and rotary drying drum 2's axial one side sets up gas burner 1, and rotary drying drum 2's axial opposite side sets up exhanst gas outlet 15, new feed inlet 16 that gathers materials.
And a new aggregate feed opening 13 communicated with the new aggregate feeding area and an old aggregate feed opening 14 communicated with the old aggregate feeding area are arranged on the fixed drying cylinder 3.
The surface of the fixed drying cylinder 3 is provided with a plurality of low-temperature catalytic gas medium-long wave heating modules 4 along the axial direction, each low-temperature catalytic gas medium-long wave heating module 4 is provided with a gas valve 11 to heat an old aggregate feeding area, and the rotary drying cylinder 2 rotates at the work time.
The outer winnowing pans 5 are spirally arranged on the outer surface of the rotary drying drum 2, and the working surface of each outer winnowing pan 5 is an arc-shaped surface.
Two axial ends of the rotary drying drum 2 are respectively connected with driven wheels 9 in a sealing mode, each driven wheel 9 is respectively in press fit with a driving wheel 10 arranged on the rack 8 and driven to operate by the driving wheel 10, and the driving wheel 10 is driven to operate by a driving mechanism 7 arranged on the rack 8 to drive the rotary drying drum 2 to rotate.
The flue gas outlet 15 is placed above the new aggregate feed inlet 16 to achieve effective separation of flue gas from new aggregate.
The low-temperature catalytic gas medium-long wave heating module 4 penetrates through the top of the fixed drying cylinder 3 along the axial direction, and the included angle between the two ends of the low-temperature catalytic gas medium-long wave heating module 4 and the central connecting line of the fixed drying cylinder 3 along the circumferential direction is 93 degrees.
As shown in fig. 1 to 4, the fixed drying cylinder 3 has an included angle of 93 ° on the top full length and circumference as shown in fig. 2, and includes a plurality of groups of low-temperature catalytic gas medium-long wave heating modules 4, which are 6X19=114 in the present embodiment.
Each group of low-temperature catalytic gas medium-long wave heating modules 4 is provided with an independent gas valve 11 and a control unit. Old aggregate gets into the jacket layer between rotary drying cylinder 2 and the fixed drying cylinder 3 from the top feed inlet of fixed drying cylinder 3, when old aggregate was in the scope of circumference 93 contained angles, because the infrared spectrum that old aggregate frequency spectrum and gas low temperature catalysis produced is close consequently to transmit heat fast in the radiation range, because the heat transfer process is the non-contact mode, from inside to outside, consequently the low temperature can only produce a small amount of pitch flue gas, a small amount of flue gas gets into the flue gas of the outer flame of the high temperature through high temperature incineration and aggregate of main burning in the circumferential weld between rotary drying cylinder 2 and the fixed drying cylinder 3 and discharges together.
Claims (5)
1. The utility model provides a long wave drying drum in low temperature catalysis gas which characterized in that: the drying device comprises a rack (8), wherein a fixed drying cylinder (3) is arranged on the rack (8), a rotary drying cylinder (2) and the fixed drying cylinder (3) are coaxially arranged, the rotary drying cylinder (2) can rotate relative to the fixed drying cylinder (3), an old aggregate feeding area is formed between the rotary drying cylinder (2) and the fixed drying cylinder (3), an old aggregate feeding hole is formed in the old aggregate feeding area, and an outer winnowing pan (5) for conveying old aggregates along the axial direction is arranged on the outer surface of the fixed drying cylinder (3) corresponding to the old aggregate feeding area in the fixed drying cylinder (3);
a new aggregate feeding area is formed in the inner cavity of the rotary drying drum (2), an inner material plate (6) for conveying new aggregates along the axial direction is arranged on the inner wall of the rotary drying drum (2), a new aggregate discharging port (12) is arranged on the rotary drying drum (2), the new aggregate discharging port (12) is used for communicating the new aggregate feeding area with an old aggregate feeding area, a gas burner (1) is arranged on one axial side of the rotary drying drum (2), and a flue gas outlet (15) and a new aggregate feeding port (16) are arranged on the other axial side of the rotary drying drum (2);
a new aggregate feed opening (13) communicated with the new aggregate feeding area and an old aggregate feed opening (14) communicated with the old aggregate feeding area are formed in the fixed drying cylinder (3);
the fixed drying cylinder (3) surface sets up a plurality of low temperature catalysis gas medium-long wave heating module (4) along the axial, every all set up a gas valve (11) on low temperature catalysis gas medium-long wave heating module (4) to heating old aggregate feeding district, rotatory drying drum (2) rotate at the during operation.
2. The low temperature catalytic gas medium wavelength drying drum of claim 1, wherein: the outer winnowing pans (5) are spirally arranged on the outer surface of the rotary drying drum (2), and the working surface of each outer winnowing pan (5) is an arc-shaped surface.
3. The low temperature catalytic gas medium wavelength drying drum of claim 1, wherein: the axial two ends of the rotary drying drum (2) are respectively connected with driven wheels (9) in a sealing mode, each driven wheel (9) is in press fit with a driving wheel (10) arranged on the rack (8) and driven to operate by the driving wheel (10), and the driving wheel (10) is driven to operate by a driving mechanism (7) arranged on the rack (8).
4. A low temperature catalytic gas medium wavelength drying drum as claimed in claim 3 wherein: the flue gas outlet (15) is arranged above the new aggregate feeding hole (16).
5. The low temperature catalytic gas medium wavelength drying drum of claim 1, wherein: the low-temperature catalytic gas medium and long wave heating module (4) penetrates through the top of the fixed drying cylinder (3) along the axial direction, and the included angle between the two ends of the low-temperature catalytic gas medium and long wave heating module (4) and the central connecting line of the fixed drying cylinder (3) along the circumferential direction is 93 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387772.6U CN212316602U (en) | 2019-12-26 | 2019-12-26 | Low-temperature catalytic gas medium-long wave drying drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387772.6U CN212316602U (en) | 2019-12-26 | 2019-12-26 | Low-temperature catalytic gas medium-long wave drying drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212316602U true CN212316602U (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922387772.6U Active CN212316602U (en) | 2019-12-26 | 2019-12-26 | Low-temperature catalytic gas medium-long wave drying drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212316602U (en) |
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2019
- 2019-12-26 CN CN201922387772.6U patent/CN212316602U/en active Active
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