CN115573221A - Old asphalt material heating and hot air circulating system - Google Patents
Old asphalt material heating and hot air circulating system Download PDFInfo
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- CN115573221A CN115573221A CN202110687127.5A CN202110687127A CN115573221A CN 115573221 A CN115573221 A CN 115573221A CN 202110687127 A CN202110687127 A CN 202110687127A CN 115573221 A CN115573221 A CN 115573221A
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- smoke
- hot air
- dust
- heating
- material heating
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses an asphalt old material heating and hot air circulating system which comprises a raw material heating roller, a regenerated material lifting machine, a smoke dust collecting device, a smoke dust mixer, a bag-type dust collector, a regenerated material heating roller, a regenerated material discharging box, a hot air generating furnace, an air quantity distributor, a circulating fan, an induced draft fan and a chimney. The invention has the advantages of simple structure, exquisite design, convenient manufacture, high heating efficiency, long service life and safe and reliable operation.
Description
Technical Field
The invention belongs to the technical field of industrial heating devices, and particularly relates to an old asphalt material heating and hot air circulating system.
Background
The existing old asphalt material is heated mainly by adopting a direct heating mode of a burner or an indirect heating mode of a hot blast stove, and the heating temperature of the old asphalt material is not uniform by adopting the prior art, so that the old asphalt material is aged in different degrees, and the heating efficiency and the heating quality are influenced. Meanwhile, the circulating hot air adopted by the prior art has high asphalt smoke content, is easy to block the hot blast stove, and has low heat efficiency and short service life of equipment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an old asphalt material heating and hot air circulating system.
In order to achieve the design purpose, the technical scheme adopted by the invention is as follows: the utility model provides an old pitch material heating and hot air circulating system, includes primary material heating cylinder, reworked material lifting machine, smoke and dust collection device, smoke and dust blender, sack cleaner, reworked material heating cylinder, reworked material unloading case, hot-blast producer, air distributor, circulating fan, draught fan and chimney, the play dirt mouth of primary material heating cylinder and smoke and dust collection device all with the entry fixed connection of smoke and dust blender, one side of smoke and dust collection device is equipped with the reworked material lifting machine, the discharge gate of reworked material lifting machine and the feed inlet fixed connection of smoke and dust collection device, the discharge gate of smoke and dust collection device is equipped with reworked material heating cylinder, the exit end of reworked material heating cylinder is equipped with the reworked material unloading case, reworked material unloading case one side is equipped with hot-blast producer, the tail end of hot-blast producer is equipped with air distributor and circulating fan in proper order, the circulating fan exit end links to each other with air distributor, the exit end of smoke and dust blender is equipped with the air distributor, the sack cleaner is equipped with the sack cleaner, the tail end of sack cleaner is equipped with the draught fan, the exit end of draught fan with the entrance point of circulating fan all is connected with the chimney.
The smoke dust collecting device comprises a gravity settling chamber and a plurality of layers of smoke dust filter screens.
The reclaimed material heating roller is heated in a counter-flow heating mode, the reclaimed material heating roller is internally provided with material lifting blades, the material lifting blades are made of anti-adhesion flexible materials, and the material lifting blades can flexibly heat the old asphalt materials by adjusting the rotating speed and the angle through variable frequency.
The hot air generating furnace is made of high-temperature resistant materials with a double-layer structure, is provided with a safe automatic protection device, and can automatically withdraw and close the hot air furnace to reduce the oxygen content in the furnace and avoid high-temperature combustion risks in emergency situations.
Raw material heating cylinder, reworked material lifting machine, smoke and dust collection device, smoke and dust blender, sack cleaner, reworked material heating cylinder, reworked material discharge box, hot-blast producer, amount of wind distributor, circulating fan and draught fan all realize automated inspection and control through PLC control system.
The invention has the beneficial effects that: compared with the prior art, the invention has the advantages that: according to the invention, the used asphalt material is heated by adopting the counter-flow regeneration roller, stable and reliable hot air is provided by the hot air generating furnace, indirect flexible heating is realized, the heating efficiency is high, and the heating is safe and reliable; the invention utilizes the clean hot air discharged by the bag-type dust remover to recycle, saves energy by more than 10 percent, and has long service life and safe and reliable operation compared with the prior art; waste gas generated in the heating process of the old asphalt material is settled for the first time through a smoke dust collecting device, is mixed for the second time through a smoke dust mixer under the action of a draught fan, adsorbs asphalt smoke, enters a bag-type dust collector to be filtered and then is discharged, and part of discharged high-temperature gas enters a hot air generating furnace through a circulating fan to be recycled; the hot air generating furnace adopts high-temperature resistant materials, the recovered clean high-temperature gas and the high-temperature gas heated by the burner are subjected to multi-stage mixing and layered combustion, the whole system collects a plurality of temperature, pressure and vibration signals, automatic detection and control are realized through a PLC control system, and the safe and stable operation of the system is ensured. The invention has the advantages of simple structure, exquisite design, convenient manufacture, high heating efficiency, long service life and safe and reliable operation.
Drawings
FIG. 1 is a schematic view of an old asphalt heating and hot air circulating system according to the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. As shown in fig. 1: the utility model provides an old material of pitch heating and hot air circulating system, includes primary material heating cylinder 1, reworked material lifting machine 2, smoke and dust collection device 3, smoke and dust blender 4, sack cleaner 5, reworked material heating cylinder 6, reworked material discharge box 7, hot-blast generator 8, amount of wind distributor 9, circulating fan 10, draught fan 11 and chimney 12, primary material heating cylinder 1 and smoke and dust collection device 3's play dirt mouth all with the entry fixed connection of smoke and dust blender 4, one side of smoke and dust collection device 3 is equipped with reworked material lifting machine 2, the discharge gate of reworked material lifting machine 2 and the feed inlet fixed connection of smoke and dust collection device 3, the discharge gate of smoke and dust collection device 3 is equipped with reworked material heating cylinder 6, the exit end of reworked material heating cylinder 6 is equipped with reworked material discharge box 7, reworked material discharge box 7 one side is equipped with hot-blast generator 8, hot-blast generator 8's tail end is equipped with amount of wind distributor 9 and circulating fan 10 in proper order, circulating fan 10 exit end links to each other with amount of wind distributor 9, the exit end of smoke and dust blender 4 is equipped with sack cleaner 5, the tail end of draught fan 11 is equipped with the draught fan 12 and the exit end of chimney all connect.
The smoke dust collecting device 3 comprises a gravity settling chamber and a plurality of layers of smoke dust filter screens.
The reclaimed material heating roller 6 is heated in a counter-flow heating mode, material lifting blades are arranged in the reclaimed material heating roller 6 and made of anti-adhesion flexible materials, and the material lifting blades can flexibly heat the old asphalt materials by adjusting the rotating speed and the angle through variable frequency.
The hot air generating furnace 8 is made of high-temperature resistant materials with a double-layer structure, is provided with a safe automatic protection device, and can automatically withdraw and close the hot air furnace to reduce the oxygen content in the furnace and avoid high-temperature combustion risks in emergency situations.
The automatic control system is characterized in that the automatic detection and control of the primary material heating roller 1, the reclaimed material hoister 2, the smoke dust collecting device 3, the smoke dust mixer 4, the bag-type dust collector 5, the reclaimed material heating roller 6, the reclaimed material discharging box 7, the hot air generating furnace 8, the air volume distributor 9, the circulating fan 10 and the draught fan 11 are realized through a PLC control system.
When the asphalt heating device is used, the old asphalt material enters the reclaimed material heating roller 6 through the reclaimed material hoister 2 to be dried and heated, and because the reclaimed material heating roller 6 is of a counter-flow structure, the reclaimed material is fully and uniformly heated; the smoke dust generated in the heating process is subjected to primary sedimentation through a smoke dust collecting device 3, is secondarily mixed with hot smoke gas generated by a primary material heating roller 1 in a smoke dust mixer 4 under the action of an induced draft fan 11, adsorbs asphalt smoke and then enters a bag-type dust collector 5, meanwhile, the smoke dust mixer 4 controls the negative pressure of a reclaimed material heating roller 6, the bag-type dust collector 5 filters dust-containing gas and then enters a chimney 12 under the action of the induced draft fan 11, the chimney 12 is connected with a circulating fan 10, and part of clean hot air discharged by the bag-type dust collector 5 respectively enters the end part and the furnace body of a hot air generating furnace 8 through the circulating fan 10 and an air volume distributor 9 for recycling; in the reproduction process, because hot-blast producer 8 is bilayer structure, clean hot-air gets into the shaft and the tip of hot-blast producer 8 through the valve in proportion respectively, guarantees the stable burning of combustor and adjusts shaft temperature and the hot-blast producer output hot air temperature through mediating the proportion to effectively protect the hot-blast furnace, realize the flexible high temperature heating of the old material of pitch, reduce the production of pitch cigarette.
Claims (5)
1. The utility model provides an old material of pitch heating and hot air circulating system which characterized in that: including virgin material heating cylinder, regeneration material lifting machine, smoke and dust collection device, smoke and dust blender, sack cleaner, regeneration material heating cylinder, regeneration material discharge box, hot-blast producer, air distributor, circulating fan, draught fan and chimney, the play dirt mouth of virgin material heating cylinder and smoke and dust collection device all with the entry fixed connection of smoke and dust blender, one side of smoke and dust collection device is equipped with the regeneration material lifting machine, the discharge gate of regeneration material lifting machine and the feed inlet fixed connection of smoke and dust collection device, the discharge gate of smoke and dust collection device is equipped with regeneration material heating cylinder, the exit end of regeneration material heating cylinder is equipped with regeneration material discharge box, regeneration material discharge box one side is equipped with hot-blast producer, the tail end of hot-blast producer is equipped with air distributor and circulating fan in proper order, the circulating fan exit end links to each other with air distributor, the exit end of smoke and dust blender is equipped with the sack cleaner, the tail end of sack cleaner is equipped with the draught fan, the exit end of draught fan with circulating fan's entrance point all is connected with the chimney.
2. The old asphalt material heating and hot air circulating system according to claim 1, wherein: the smoke dust collecting device comprises a gravity settling chamber and a plurality of layers of smoke dust filter screens.
3. The old asphalt heating and hot air circulating system according to claim 1, wherein: the reclaimed material heating roller is heated in a counter-flow heating mode, the reclaimed material heating roller is internally provided with material lifting blades, the material lifting blades are made of anti-adhesion flexible materials, and the material lifting blades can flexibly heat the old asphalt materials by adjusting the rotating speed and the angle through variable frequency.
4. The old asphalt heating and hot air circulating system according to claim 1, wherein: the hot air generating furnace is made of high-temperature resistant materials with a double-layer structure, is provided with a safe automatic protection device, and can automatically withdraw and close the hot air furnace to reduce the oxygen content in the furnace and avoid high-temperature combustion risks in emergency situations.
5. The old asphalt heating and hot air circulating system according to claim 1, wherein: the device comprises a raw material heating roller, a reclaimed material hoister, a smoke dust collecting device, a smoke dust mixer, a bag-type dust collector, a reclaimed material heating roller, a reclaimed material discharging box, a hot air generating furnace, an air flow distributor, a circulating fan and a draught fan, wherein automatic detection and control are realized through a PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687127.5A CN115573221A (en) | 2021-06-21 | 2021-06-21 | Old asphalt material heating and hot air circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687127.5A CN115573221A (en) | 2021-06-21 | 2021-06-21 | Old asphalt material heating and hot air circulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115573221A true CN115573221A (en) | 2023-01-06 |
Family
ID=84579972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110687127.5A Pending CN115573221A (en) | 2021-06-21 | 2021-06-21 | Old asphalt material heating and hot air circulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115573221A (en) |
-
2021
- 2021-06-21 CN CN202110687127.5A patent/CN115573221A/en active Pending
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