CN117265951A - Production method of hot mix plant recycled asphalt mixture - Google Patents
Production method of hot mix plant recycled asphalt mixture Download PDFInfo
- Publication number
- CN117265951A CN117265951A CN202311465183.XA CN202311465183A CN117265951A CN 117265951 A CN117265951 A CN 117265951A CN 202311465183 A CN202311465183 A CN 202311465183A CN 117265951 A CN117265951 A CN 117265951A
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- China
- Prior art keywords
- asphalt
- hot
- mineral powder
- aggregate
- recycled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
-
- 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
-
- 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
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
-
- 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
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a production method of a plant-mixed hot recycled asphalt mixture, which comprises the following steps of respectively carrying out standardized operation on recycled milling materials and raw sand and stone materials, storing the recycled milling materials and the raw sand and stone materials in storage according to production matching proportion, conveying the recycled milling materials and the raw sand and stone materials in storage into an aggregate heating device for mixed heating, enabling heated hot aggregate to enter a hot aggregate storage bin, and then respectively metering and putting the hot aggregate in the hot aggregate storage bin, asphalt in an asphalt storage tank and mineral powder in a mineral powder storage tank into a stirring pot for stirring according to production matching proportion to form an asphalt mixture finished product. The regenerated milling material and the original sand stone material which are subjected to standardized operation are put into the same aggregate heating device according to the production matching proportion for heating, so that the heat in the aggregate heating device is used for fully heating the mixture, the occupied area is reduced, the heat energy utilization rate is improved, the heat energy loss is reduced, and the quality of products is improved.
Description
Technical Field
The invention belongs to the technical field of reclaimed asphalt production, and particularly relates to a production method of a hot reclaimed asphalt mixture in a plant.
Background
The construction of the plant-mixed hot recycled asphalt mixture pavement is a technological process that milling and planing broken waste asphalt pavement materials and new aggregates are heated and mixed in plant-mixed equipment to restore the pavement performance, and then the asphalt pavement is paved again. The prior treatment process of the regenerated asphalt mixture adopts a primary roller to heat the primary sand and stone in the mixing building, adopts a regeneration roller to heat the regenerated milling material in the mixing building, and then mixes the regenerated milling material with mineral powder, asphalt and other materials in a stirring pot according to proportion.
Disclosure of Invention
In order to solve the problems, the invention provides a production method of a hot mix plant recycled asphalt mixture.
The invention is realized in the following way: the production method of the plant-mixed hot recycled asphalt mixture comprises the following steps of respectively carrying out standardized operation on recycled milling materials and raw sand and stone materials, storing the recycled milling materials and the raw sand and stone materials in different cold bins, conveying the recycled milling materials and the raw sand and stone materials in storage into an aggregate heating device according to the production mixing proportion of 2:1-9:1 for mixed heating until the temperature of hot aggregate reaches 120-200 ℃, fully mixing the recycled milling materials and the raw sand and stone materials together while uniformly heating, enabling the hot aggregate to enter a hot aggregate storage bin for temporary storage, and then carrying out temporary storage according to 90-94: 3 to 5: 3-5, respectively weighing and metering the hot aggregate in the hot aggregate buffer bin, the asphalt in the asphalt storage tank and the mineral powder in the mineral powder storage tank, and putting the hot aggregate, the asphalt in the asphalt storage tank and the mineral powder in a stirring pot in batches for stirring to form an asphalt mixture finished product.
Preferably, the standardized operation of regeneration milling material includes that regeneration milling material is carried, broken, screening and mixing, regeneration milling material conveys breaker through belt conveyor, massive regeneration milling material becomes the granule through breaker's crushing, the broken material is screened through screening plant, the broken material that accords with the particle size requirement is selected, throw into breaker again after retrieving the broken material that does not accord with the particle size requirement and carry out secondary crushing, avoid causing the waste of raw materials, the broken material that stacks in the branch storehouse further carries out the mixing operation, guarantee that the composition is even unanimous.
Preferably, the standardized operation of the raw sand and stone comprises conveying and screening of the raw sand and stone, the raw sand and stone is conveyed to a screening device through a belt conveying device, sand and stone materials meeting the particle size requirement are screened out, and large-particle impurities are removed.
Preferably, an asphalt conveying pump is arranged on an asphalt conveying pipe between the asphalt storage tank and the stirring pan, an asphalt metering scale is arranged at the joint of the asphalt storage tank and the asphalt conveying pipe, the output quantity of asphalt is metered through the asphalt metering scale, and then asphalt in the asphalt storage tank is conveyed into the stirring pan along the asphalt conveying pipe through the action of the asphalt conveying pump.
Preferably, a mineral powder conveying pump is arranged on a mineral powder conveying pipe between the mineral powder storage tank and the stirring pan, a mineral powder metering scale is arranged at the joint of the mineral powder storage tank and the mineral powder conveying pipe, the output quantity of mineral powder is metered through the mineral powder metering scale, and mineral powder in the mineral powder storage tank is conveyed into the stirring pan along the mineral powder conveying pipe under the action of the mineral powder conveying pump.
Preferably, a hot aggregate weighing scale is arranged below the hot aggregate storage bin and used for weighing the hot aggregate.
Preferably, the aggregate heating device is a drying roller.
The beneficial effects of the invention are as follows: through carrying, crushing, screening and mixing to the regeneration mill the material, the cubic body that does not accord with the specification in the crushed material has been got rid of, carry and the screening to the primary sand stone, the large granule impurity in the primary sand stone has been got rid of, the regeneration mill the material through standardized operation is thrown into same aggregate heating device with primary sand stone material according to the production cooperation proportion and is heated, thereby make the heat in the aggregate heating device fully heat the mixture, area has been reduced, the addition proportion of regeneration mill the material has been increased, the heat energy utilization ratio has been improved, the loss of heat energy has been reduced, the quality of product has been improved.
Drawings
FIG. 1 is a schematic illustration of the present invention;
in the figure: 1. regenerating milling materials; 2. raw sand and stone materials; 3. an aggregate heating device; 4. a hot aggregate buffering bin; 5. an asphalt storage tank; 6. a mineral powder storage tank; 7. a stirring pot; 8. a belt conveyor; 9. a crushing device; 10. a screening device; 11. an asphalt delivery pipe; 12. an asphalt delivery pump; 13. asphalt metering scale; 14. a mineral powder conveying pipe; 15. a mineral powder conveying pump; 16. weighing mineral powder; 17. and (5) weighing the hot aggregate.
Detailed Description
In order to make the technical solution of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings.
The production method of the plant-mixed hot recycled asphalt mixture shown in the figure 1 comprises the following steps of respectively carrying out standardized operation on 1 recycled milled material and 2 raw sand stone, storing the standardized operation on the recycled milled material 1 and the 2 raw sand stone in different cold bins, conveying, crushing, screening and uniformly mixing the recycled milled material 1, conveying the recycled milled material 1 to a crushing device 9 through a belt conveying device 8, crushing the blocky recycled milled material 1 into particles through the crushing device 9, screening the crushed materials through a screening device 10, recycling the crushed materials which meet the particle size requirement, putting the crushed materials which do not meet the particle size requirement into the crushing device 9 again for secondary crushing treatment, avoiding the waste of raw materials, the crushed materials stacked in the separate bins are further uniformly mixed, the components are guaranteed to be uniform, the standardized operation of the raw sand stone 2 comprises conveying and screening of the raw sand stone 2, the raw sand stone 2 is conveyed to a screening device 10 through a belt conveying device 8, sand stone materials meeting the particle size requirement are screened out, large-particle impurities are removed, the regenerated milling material 1 in storage and the raw sand stone 2 are conveyed to an aggregate heating device 3 according to the production matching proportion of 5:1 for mixed heating until the temperature of hot aggregate reaches 160 ℃, the regenerated milling material 1 and the raw sand stone 2 are fully mixed together while being uniformly heated, the aggregate heating device 3 is a drying roller, the hot aggregate enters a hot aggregate buffering bin 4 for temporary storage, and then the hot aggregate is temporarily stored according to 94:3:3, respectively weighing and metering hot aggregate in a hot aggregate storage bin 4, asphalt in an asphalt storage tank 5 and mineral powder in a mineral powder storage tank 6, and stirring the hot aggregate in a stirring pot 7 according to batches, wherein a hot aggregate metering scale 17 is arranged below the hot aggregate storage bin 4, the hot aggregate is weighed, an asphalt delivery pump 12 is arranged on an asphalt delivery pipe 11 between the asphalt storage tank 5 and the stirring pot 7, an asphalt metering scale 13 is arranged at the joint of the asphalt storage tank 5 and the asphalt delivery pipe 11, the output of asphalt is metered through the asphalt metering scale 13, then asphalt in the asphalt storage tank 5 is delivered to the stirring pot 7 along the asphalt delivery pipe 11 under the action of the asphalt delivery pump 12, a mineral powder delivery pump 15 is arranged on a mineral powder delivery pipe 14 between the mineral powder storage tank 6 and the stirring pot 7, a finished product mineral powder metering scale 16 is arranged at the joint of the mineral powder storage tank 6 and the mineral powder delivery pipe 14, mineral powder is metered through the mineral powder metering scale 16, and then mineral powder in the mineral powder delivery pipe 14 is delivered to the stirring pot 7 along the mineral powder delivery pipe 14 under the action of the mineral powder delivery pump 15, and the mineral powder is mixed into the asphalt.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.
Claims (7)
1. The production method of the hot recycled asphalt mixture in the plant is characterized by comprising the following steps of respectively carrying out standardized operation on recycled milling materials and raw sand and stone materials, storing, conveying the stored recycled milling materials and raw sand and stone materials into an aggregate heating device according to a production mixing proportion of 2:1-9:1 for mixed heating until the temperature of hot aggregate reaches 120-200 ℃, and enabling the hot aggregate to enter a hot aggregate storage bin, and then carrying out mixing heating according to 90-94: 3 to 5: 3-5, respectively weighing and metering the hot aggregate in the hot aggregate buffer bin, the asphalt in the asphalt storage tank and the mineral powder in the mineral powder storage tank, and putting the hot aggregate, the asphalt in the asphalt storage tank and the mineral powder in a stirring pot in batches for stirring to form an asphalt mixture finished product.
2. The method for producing the hot recycled asphalt mixture according to claim 1, wherein the standardized operation of the recycled asphalt mixture comprises the steps of conveying, crushing, screening and uniformly mixing the recycled asphalt mixture, conveying the recycled asphalt mixture to a crushing device through a belt conveying device, crushing the block recycled asphalt mixture into particles through the crushing device, screening the particles through a screening device, screening the crushed materials meeting the particle size requirement, and then uniformly mixing.
3. The method for producing a plant-mixed hot recycled asphalt mixture according to claim 1, wherein the standardized operation of the raw sand and stone comprises conveying and screening the raw sand and stone, and the raw sand and stone is conveyed to a screening device through a belt conveying device to screen sand and stone materials meeting the particle size requirements.
4. The method for producing the hot recycled asphalt mixture according to claim 1, wherein an asphalt conveying pump is arranged on an asphalt conveying pipe between the asphalt storage tank and the stirring pot, and an asphalt metering scale is arranged at the joint of the asphalt storage tank and the asphalt conveying pipe.
5. The production method of the plant-mixed hot recycled asphalt mixture according to claim 1, wherein a mineral powder conveying pump is arranged on a mineral powder conveying pipe between the mineral powder storage tank and the stirring pot, and a mineral powder metering scale is arranged at the joint of the mineral powder storage tank and the mineral powder conveying pipe.
6. The method for producing the hot recycled asphalt mixture according to claim 1, wherein a hot aggregate metering scale is arranged below the hot aggregate storage bin.
7. The method for producing a hot mix plant recycled asphalt mixture according to claim 1, wherein the aggregate heating device is a drying drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311465183.XA CN117265951A (en) | 2023-11-03 | 2023-11-03 | Production method of hot mix plant recycled asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311465183.XA CN117265951A (en) | 2023-11-03 | 2023-11-03 | Production method of hot mix plant recycled asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117265951A true CN117265951A (en) | 2023-12-22 |
Family
ID=89204408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311465183.XA Pending CN117265951A (en) | 2023-11-03 | 2023-11-03 | Production method of hot mix plant recycled asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117265951A (en) |
-
2023
- 2023-11-03 CN CN202311465183.XA patent/CN117265951A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 610000 6 / F, building 11, 267-8, wainan street, Xindu street, Xindu District, Chengdu, Sichuan Province Applicant after: Sichuan Ruixin Supply Chain Management Group Co.,Ltd. Address before: 610000 6 / F, building 11, 267-8, wainan street, Xindu street, Xindu District, Chengdu, Sichuan Province Applicant before: Sichuan Ruixin Supply Chain Management Co.,Ltd. Country or region before: China |
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| CB02 | Change of applicant information |