CN102587259A - Pitch stirring device with hot recycling function - Google Patents
Pitch stirring device with hot recycling function Download PDFInfo
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- CN102587259A CN102587259A CN2012100425375A CN201210042537A CN102587259A CN 102587259 A CN102587259 A CN 102587259A CN 2012100425375 A CN2012100425375 A CN 2012100425375A CN 201210042537 A CN201210042537 A CN 201210042537A CN 102587259 A CN102587259 A CN 102587259A
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Abstract
The invention discloses a pitch stirring device with the hot recycling function, which comprises a common powder system, a pitch system, an originally-producing machine system, a recycling machine system, a stirring system and a dust removing system. The recycling machine system comprises a recycling material and aggregate ingredient sub-system, a second hoister and a second drying roller which are sequentially linked through discharge ends and charge ends, and the discharge end of the second drying roller is connected with a switching valve; a first discharge end of the switching valve is connected with a second vibrating screen, a second hot storage bin and a fourth measuring sub-system which are sequentially linked through discharge ends and charge ends; and a second discharge end of the switching valve is connected to the corresponding charge end of the second hot storage bin. According to the invention, the stirring capacity is increased, the dedusting area of a bag-type dust remover is increased, a first drying roller and the second drying roller dry the aggregate at the same time, and a first vibrating screen and the second vibrating screen conducts screening of aggregate of different specifications at the same time; and the heat balance is realized through double-roller frequency conversion and waste gas treatment, so as to save equipment cost, increase yield and realize the effect of yield increase and energy conservation.
Description
Technical field
The present invention relates to a kind of asphalt mixing plant, particularly relate to a kind of asphalt mixing plant with hot regeneration function.
Background technology
Bituminous mixing plant satisfied the demand of newly-built Expressway Asphalt compound for adapting to national conditions in recent years, asphalt mixing plant develops towards the big direction of output, the asphalt mixing plant of 5000 types, 6000 types, 7500 types occurred.
As shown in Figure 1, asphalt mixing plant comprises powder system, pitch prill system, former life system, stirring system, dust pelletizing system and finished product bin; Wherein: 1) in the powder system, powder is sent into filler bin through conveyer and is stored, and is delivered to the first metering subsystem from filler bin again and waits for metering output; 2) in the pitch prill system, pitch is delivered to the second metering subsystem and waits for metering output after melting dehydration, being heated to uniform temperature; 3) in the former life system; Former raw material adopt sand, broken (gravel) stone etc. as aggregate; After aggregate carries out first gradating material through the aggregate batching subsystem; Send into the drying roller oven dry through belt conveyor and be heated to the temperature that satisfies the required bituminous mixture of stirring, be promoted to bolting through elevator then and become the hot aggregate of different size also to store to corresponding hot aggregate bin respectively, this hot aggregate bin is connected with the audit of economy quantized system; 4) stirring system comprises agitator; According to the requirement of drop mixture gradation; Put in the agitator after above-mentioned powder, above-mentioned pitch prill and above-mentioned aggregate are measured respectively through the first metering subsystem, second metering subsystem and the audit of economy quantized system, in this agitator, stir and store to finished bin after processing finished product; 5) dust pelletizing system comprises sack cleaner, and the main building negative pressure pipe of the feed end of drying roller and asphalt mixing plant is connected with the respective ends of sack cleaner is corresponding through dust removing tube respectively; Like this, can carry out dust removal process to the drying roller, elevator, vibrosieve and the hot aggregate bin that are connected the successively inner gas and the dust in the main building that contain impurity such as dust through sack cleaner; 6) finished product bin is mainly used in the finished products such as bituminous mixture of storing the stirring system preparation.
As shown in Figure 2, the asphalt-regenerating mixing plant comprises powder system, pitch prill system, former life system, regenerating device system, regenerative agent system, stirring system, dust pelletizing system and finished product bin.Wherein, powder system, pitch prill system, former life system, stirring system, dust pelletizing system and finished product bin are identical with six systems in the above-mentioned asphalt mixing plant.Other differences are: 1) in the regenerating device system; Reworked material adopts old asphalt mixture etc.; Old asphalt mixture is successively through broken batching, the lifting of second elevator, second drying roller oven dry heating; Be delivered to the reworked material bin then, be delivered to the 4th metering subsystem again from the reworked material bin and wait for metering output; 2) in the regenerative agent system, regenerative agent is stored in the regenerative agent storehouse in advance, is delivered to the 5th metering subsystem then from the regenerative agent storehouse and waits for metering output; 3) last; According to the requirement of drop mixture gradation; Put in the agitator in the stirring system after through the first metering subsystem, second metering subsystem, the audit of economy quantized system, the 4th metering subsystem and the 5th metering subsystem powder, pitch prill, aggregate, old asphalt mixture and regenerative agent being measured respectively, in this agitator, stir and store to finished bin after processing finished product; 4) dust pelletizing system comprises sack cleaner; First drying roller in the former life system and second drying roller in the regenerating device system are communicated with through airduct, and first drying roller is connected with the respective ends of sack cleaner is corresponding through dust removing tube respectively with second drying roller; Like this, through sack cleaner the inner gas that contains impurity such as dust of first drying roller, second drying roller, elevator, vibrosieve and hot aggregate bin is carried out dust removal process.
Adopt the large-scale bituminous mixing plant of above-mentioned asphalt mixing plant, asphalt-regenerating mixing plant to have ultra wide transfiniting, hard transportation, mounting cost is high, and production model is single, and manufacturing technology requires high difficult point.In the particularly large-scale bituminous mixing plant; Adopt an audit of economy quantized system that multiple aggregate is carried out cumulative measurement, because the consumption of various aggregates is big, for a cycle period 45s; The metering of various aggregates is shorter with the steady scale time, causes the measuring accuracy of each aggregate not high.
And; When the asphalt-regenerating mixing plant is produced; Because of receiving deduster dedusting area, agitator capacity etc., the asphalt-regenerating mixing plant influences on the one hand; Output often can only reach the designed productive capacity of former life system, reduces output through former life system and satisfies the requirement that reworked material adds, and causes the waste of former life system's production capacity and power; On the other hand, when the asphalt-regenerating mixing plant was only launched primary machine equipment, regenerating device equipment was not launched, and causes the idleness of equipment.
Summary of the invention
In view of this, the object of the present invention is to provide and a kind ofly can practice thrift the asphalt mixing plant that equipment cost can improve output again with hot regeneration function
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of asphalt mixing plant with hot regeneration function; Comprise conventional powder system and conventional pitch prill system; It is characterized in that, also comprise former life system, the regenerating device system; Stirring system, dust pelletizing system and finished product bin: 1) this former life system comprises aggregate batching subsystem, first drying roller, first elevator, first vibrosieve, first hot aggregate bin, the audit of economy quantized system that is connected successively; 2) this regenerating device system comprises reworked material and aggregate batching subsystem, second elevator and second drying roller that is connected successively, and the discharge end of this second drying roller is connected with transfer valve; This transfer valve has first discharge end and second discharge end, and first discharge end of this transfer valve is connected with second vibrosieve, second hot aggregate bin and the 4th metering subsystem that discharge end and feed end are connected successively; The second discharge end correspondence of this transfer valve is connected to the corresponding feed end of second hot aggregate bin; 3) output, the output of audit of economy quantized system and the output of the 4th metering subsystem of the second metering subsystem in the corresponding respectively output that is communicated with the first metering subsystem in the said powder system of the corresponding feed end of this stirring system, the said pitch prill system, and the discharge end of this stirring system is communicated to said finished product bin; 4) this dust pelletizing system comprises sack cleaner, and said first drying roller, first elevator and first hot aggregate bin are communicated with the respective inlets end of this sack cleaner through dust removing tube respectively.
Said first drying roller is provided with first air port near the feed end place, and said second oven dry is rolled near discharge end and is provided with second air port, and said first drying roller and second drying roller are connected through the airduct that is arranged on first wind and second air port place.
Said first drying roller and second drying roller have RHVC respectively.
Said RHVC is a frequency converter.
In the said aggregate batching subsystem former raw material are housed, reworked material or former raw material are housed in said reworked material and the aggregate batching subsystem.
After adopting said structure; A kind of asphalt mixing plant with hot regeneration function of the present invention has following beneficial effect: in primary pitch prill whipping process; Start former life system and regenerating device system simultaneously; Require to measure respectively the back according to asphalt mixture gradation and the aggregate in former life system and the regenerating device system is rendered in the agitator in the stirring system simultaneously, add certain pitch again, powder stirs into bituminous mixture through conveyor or drag conveyor; Among the present invention; First drying roller and second drying roller be oven-dried aggregate simultaneously, and first vibrosieve and second vibrosieve sieve the different specifications aggregate simultaneously, utilizes twin-roll drop temperature Balance Control technology; Through disposing the suitable agitator capacity and the dedusting area of sack cleaner; Can further realize the purpose increased production, reach and practice thrift equipment cost and can improve output again, realize the effect of Increasing Production and Energy Saving; For existing large-scale asphalt mixing plant with an aggregate scale; The present invention adopts an aggregate scale in the audit of economy quantized system of former life system; In the 4th metering subsystem of regenerating device system, adopt an aggregate scale; Through two aggregate scales cumulative measurement aggregates respectively, prolonged the metering and steady scale time of various material, thereby promoted measuring accuracy high.
Description of drawings
Fig. 1 is the production procedure sketch map of existing asphalt mixing plant;
Fig. 2 is the production procedure sketch map of existing asphalt-regenerating mixing plant;
Fig. 3 is the production procedure sketch map of a kind of asphalt mixing plant with hot regeneration function of the present invention;
Fig. 4 lays sketch map for the plane of a kind of asphalt mixing plant with hot regeneration function of the present invention;
Fig. 5 is the structural representation of the aggregate batching subsystem among the present invention;
Fig. 6 is the structural representation of an angle of the former life system among the present invention;
Fig. 7 is the structural representation of an angle of the regenerating device system among the present invention;
Fig. 8 is the structural representation of another angle of the regenerating device system among the present invention;
Fig. 9 is the structural representation of another angle of the former life system among the present invention.
Among the figure:
1 pitch prill system 2 of powder system
Former life system 3 aggregate batching subsystems 31
First drying roller, 32 first elevators 33
First vibrosieve, 34 first hot aggregate bins 35
Audit of economy quantized system 36 regenerating device systems 4
Reworked material and aggregate batching subsystem 41 second elevators 42
Second drying roller, 43 second vibrosieves 44
Second hot aggregate bin 45 the 4th metering subsystem 46
Stirring system 5 dust pelletizing systems 6
The specific embodiment
In order further to explain technical scheme of the present invention, come the present invention is set forth in detail through specific embodiment below.
Shown in Fig. 3 to 9, a kind of asphalt mixing plant with hot regeneration function of the present invention comprises, powder system 1, pitch prill system 2, former life system 3, regenerating device system 4, stirring system 5, dust pelletizing system 6, finished product bin and regenerative agent system.
Powder system 1 adopts conventional structure, and it mainly comprises filler bin, conveyer and the first metering subsystem, and powder is waited for metering output from filler bin through conveyor delivery to the first metering subsystem.
Pitch prill system 2 adopts conventional structure, and it mainly comprises asphalt tank, heat-conducting oil furnace and the second metering subsystem that is connected successively.Pitch is delivered to the second metering subsystem and waits for metering output after melting dehydration, heating.
Former life system 3 comprises that aggregate batching subsystem that discharge end and feed end be connected successively 31, first drying roller 32, first elevator 33, first vibrosieve 34, first hot aggregate bin 35 and audit of economy quantized system 36, the audit of economy quantized systems 36 comprise that aggregate claims.
Regenerating device system 4 comprises successively the reworked material that is connected and aggregate batching subsystem 41, second elevator 42, second drying roller 43, second vibrosieve 44, second hot aggregate bin 45 and the 4th metering subsystem 46; Wherein, the feed end of second vibrosieve 44 is equipped with transfer valve, and this transfer valve can be selected screening and not sieve supplied materials, and the 4th metering subsystem 46 comprises that aggregate claims.
As preferred embodiment of the present invention, first drying roller 32 and second drying roller 43 have RHVC respectively, and this RHVC is a frequency converter, realizes the frequency control of first drying roller 32 and second drying roller 43 through frequency converter.In addition; Second drying roller 43 is provided with second air port near the discharge end place; First drying roller 32 is provided with first air port near the feed end place, in first air port and place, second air port airduct is set, and through this airduct second drying roller 43 and first drying roller 32 is connected; Because the temperature of second drying roller 43 is higher than first drying roller 32, makes heat flow to first drying roller 32 from second drying roller 43 through above-mentioned airduct like this.
Stirring system 5 comprises agitator, and the corresponding feed end of this agitator is corresponding respectively to connect the output of the audit of economy quantized system 36 in the output of output, the second metering subsystem in the pitch prill system 2 of the first metering subsystem in the powder system 1, the former life system 3 and the output of the 4th metering subsystem 46 in the regenerating device system 4.
Dust pelletizing system 6 comprises sack cleaner, and the discharge end of the feed end of first drying roller 32 and first hot aggregate bin 35 is connected with the respective ends of sack cleaner is corresponding through dust removing tube respectively.Like this; Through dedusting area and the agitator capacity that disposes suitable sack cleaner; Can further realize the purpose increased production, and can carry out dust removal process to the inner gas that contains impurity such as dust of first drying roller 32 that is connected successively, first elevator 33, first vibrosieve 34 and first hot aggregate bin 35 through sack cleaner; Because second drying roller 43 is connected through airduct with first drying roller 32, sack cleaner also can carry out dust removal process to second drying roller, 43 interior dusty gases.
As another embodiment of the present invention, the feed end of second drying roller 43 also can pass through the corresponding connection with the respective ends of sack cleaner of dust removing tube; Like this, first drying roller 32 and second drying roller 43 can carry out sufficient dedusting through dust removing tube respectively, and first drying roller 32 makes full use of the heat of second drying roller 43 through airduct.
The regenerative agent system adopts conventional structure, and it mainly comprises regenerative agent storehouse and the 5th metering subsystem, and regenerative agent is stored in the regenerative agent storehouse in advance, is delivered to the 5th metering subsystem then from the regenerative agent storehouse and waits for metering output.
Above-mentioned finished product bin adopts conventional structure, and it is mainly used in the finished products such as bituminous mixture of storing stirring system 5 preparations.
The present invention adds man-hour to former raw material, can start former life system 3 simultaneously and respectively former raw material processed with regenerating device system 4, compares with the existing production model that only can start former life system, and the present invention has greatly improved output.In addition, reworked material is added man-hour, identical with the production model of existing asphalt-regenerating mixing plant.
Primary pitch prill whipping process is specific as follows:
1, in the powder system 1, powder is stored in conveyor delivery to filler bin, is delivered to the first metering subsystem from filler bin again and waits for metering output;
2, in the pitch prill system 2, pitch prill dewaters through melting, heat tracing is delivered to the second metering subsystem and waits for metering output;
3, in the former life system 3; Former raw material adopt sand, broken (gravel) stone etc. as aggregate; After aggregate carries out first gradating material through aggregate batching subsystem 31; Send into 32 oven dry of first drying roller through belt conveyor and be heated to the temperature that satisfies the required bituminous mixture of stirring; Be promoted in first vibrosieve 34 through first elevator 33 then, after first vibrosieve 34 sieves into the hot aggregate of different size, store in storage to the first corresponding hot aggregate bin 35 respectively, be delivered to audit of economy quantized system 36 from first hot aggregate bin 35 and wait for metering output;
4, in the regenerating device system 4; Above-mentioned transfer valve in second vibrosieve 44 is selected supplied materials is sieved; Former raw material adopt sand, broken (gravel) stone etc. as aggregate; After 41 pairs of aggregates of reworked material and aggregate batching subsystem carry out just gradating material, in belt conveyor is sent into second elevator 42, be promoted to the 43 oven dry heating of second drying roller through second elevator 42 after; Corresponding respectively storage is delivered to the 4th metering subsystem 46 from second hot aggregate bin 45 then and waits for metering output to second hot aggregate bin 45 sieve into the hot aggregate of different size through second vibrosieve 44 after;
5, according to the requirement of drop mixture gradation; Put in the agitator in the stirring system 5 after measuring respectively through above-mentioned aggregate in the first metering subsystem, second metering subsystem, the audit of economy quantized system 36 and 46 pairs of above-mentioned powders of the 4th metering subsystem, above-mentioned pitch prill, the former life system 3 and the above-mentioned aggregate in the regenerating device system 4, in this agitator, stir and store to finished bin after processing finished product;
6, in the dust pelletizing system 6, the gases that contain impurity in second drying roller 43 that is communicated with successively on the one hand, first drying roller 32, first elevator 33, first vibrosieve 34 and first hot aggregate bin 35 carry out dust removal process through sack cleaner; Heat in second drying roller 43 supplies first drying roller 32 to utilize through airduct on the other hand.
In sum; In primary pitch prill whipping process; Start former life system 3 and regenerating device system 4 simultaneously; Require to carry out behind the cumulative measurement former life system 3 to be rendered in the agitator in the stirring system 5 with the aggregate in the regenerating device system 4 simultaneously according to the drop mixture gradation, add certain pitch again, powder stirs into bituminous mixture through conveyor or drag conveyor.
Among the present invention; Increase the dedusting area of mixed capacity and sack cleaner; First drying roller 32 and second drying roller 43 be oven-dried aggregate simultaneously, and first vibrosieve 34 and second vibrosieve 44 can sieve the different specifications aggregate simultaneously, utilizes twin-roll frequency conversion and exhaust-gas treatment heat balance technology; Can practice thrift equipment cost and can improve output again, realize the effect of Increasing Production and Energy Saving.
For existing large-scale asphalt mixing plant with an aggregate scale; The present invention adopts an aggregate scale in the audit of economy quantized system 36 of former life system 3; In the 4th metering subsystem 46 of regenerating device system 4, adopt an aggregate scale; Through two aggregate scales cumulative measurements respectively, prolonged the metering and steady scale time of various material, thereby promoted measuring accuracy high.
Adopt the present invention, the process of carrying out pitch prill regeneration stirring is roughly following:
1, each process of powder system 1, pitch prill system 2 and former life system 3 and the step 1 in the above-mentioned primary pitch prill whipping process are to 3 roughly the same;
2, in the regenerating device system 4; Above-mentioned transfer valve in second vibrosieve 44 is selected supplied materials is not sieved, and reworked material adopts old asphalt mixture etc., and old asphalt mixture etc. are successively after broken batching; In belt conveyor is sent into second elevator 42; Be promoted to the 43 oven dry heating of second drying roller through second elevator 42, corresponding respectively then storage is delivered to the 4th metering subsystem 46 from second hot aggregate bin 45 and waits for metering output to second hot aggregate bin 45;
3, regenerative agent is delivered to the 5th metering subsystem and waits for metering output from the regenerative agent storehouse;
4, according to the requirement of drop mixture gradation; Put in the agitator in the stirring system 5 after through the above-mentioned first metering subsystem, above-mentioned second metering subsystem, the audit of economy quantized system 36, the 4th metering subsystem 46 and above-mentioned the 5th metering subsystem the above-mentioned aggregate in above-mentioned powder, above-mentioned pitch prill, the former life system 3, reworked material and the regenerative agent in the regenerative agent system in the regenerating device system 4 being measured respectively, in this agitator, stir and store to finished bin after processing finished product;
5, the step 6 in the processing procedure of dust pelletizing system 6 and the above-mentioned primary pitch prill whipping process is roughly the same.
In a word; The present invention utilizes first drying roller 32 and second drying roller 43 to heat former raw material and pitch prill reworked material respectively, has adopted agitator of the present invention can carry out five kinds of production models: bituminous mixing plant production model, parallel double cylinder hot aggregates, dual shale shaker simultaneously sieve hot aggregate production model, hot in-plant reclaimed production model, plantmix's cold regeneration row product pattern, asphalt mixture warm-mixing pattern simultaneously.
The foregoing description and accompanying drawing and non-limiting product form of the present invention and style, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from patent category of the present invention to its suitable variation or modification of doing.
Claims (5)
1. asphalt mixing plant with hot regeneration function comprises conventional powder system and conventional pitch prill system, it is characterized in that, also comprises former life system, the regenerating device system, and stirring system, dust pelletizing system and finished product bin:
1) this former life system comprises aggregate batching subsystem, first drying roller, first elevator, first vibrosieve, first hot aggregate bin, the audit of economy quantized system that is connected successively;
2) this regenerating device system comprises reworked material and aggregate batching subsystem, second elevator and second drying roller that is connected successively, and the discharge end of this second drying roller is connected with transfer valve; This transfer valve has first discharge end and second discharge end, and first discharge end of this transfer valve is connected with second vibrosieve, second hot aggregate bin and the 4th metering subsystem that discharge end and feed end are connected successively; The second discharge end correspondence of this transfer valve is connected to the corresponding feed end of second hot aggregate bin;
3) output, the output of audit of economy quantized system and the output of the 4th metering subsystem of the second metering subsystem in the corresponding respectively output that is communicated with the first metering subsystem in the said powder system of the corresponding feed end of this stirring system, the said pitch prill system, and the discharge end of this stirring system is communicated to said finished product bin;
4) this dust pelletizing system comprises sack cleaner, and said first drying roller, first elevator and first hot aggregate bin are communicated with the respective inlets end of this sack cleaner through dust removing tube respectively.
2. a kind of asphalt mixing plant as claimed in claim 1 with hot regeneration function; It is characterized in that; Said first drying roller is provided with first air port near the feed end place; Said second oven dry is rolled near discharge end and is provided with second air port, and said first drying roller and second drying roller are connected through the airduct that is arranged on first wind and second air port place.
3. a kind of asphalt mixing plant with hot regeneration function as claimed in claim 1 is characterized in that said first drying roller and second drying roller have RHVC respectively.
4. a kind of asphalt mixing plant with hot regeneration function as claimed in claim 3 is characterized in that said RHVC is a frequency converter.
5. a kind of asphalt mixing plant with hot regeneration function as claimed in claim 1 is characterized in that, in the said aggregate batching subsystem former raw material is housed, and reworked material or former raw material are housed in said reworked material and the aggregate batching subsystem.
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| CN201210042537.5A CN102587259B (en) | 2012-02-23 | 2012-02-23 | Pitch stirring device with hot recycling function |
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| CN201210042537.5A CN102587259B (en) | 2012-02-23 | 2012-02-23 | Pitch stirring device with hot recycling function |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103821065A (en) * | 2014-02-20 | 2014-05-28 | 廊坊德基机械科技股份有限公司 | Forced intermittent special mixing apparatus for asphalt mixture regeneration |
| CN107326777A (en) * | 2017-08-02 | 2017-11-07 | 北京加隆工程机械有限公司 | A kind of primary material, reworked material integrated equipment |
| CN108221557A (en) * | 2016-12-22 | 2018-06-29 | 薛山 | A kind of the reworked material process units and its technique of large scale addition old asphalt mixture |
| CN108797272A (en) * | 2018-05-03 | 2018-11-13 | 南京同力建设集团股份有限公司 | A kind of burner and its control method of twin-roll heat regeneration asphalt concrete mixing machine |
| CN109537403A (en) * | 2018-10-25 | 2019-03-29 | 江苏集萃道路工程技术与装备研究所有限公司 | A kind of full reclaimed asphalt mixture production equipment of workshop formula and production technology |
| CN109706821A (en) * | 2019-03-04 | 2019-05-03 | 江苏人杰筑路机械科技有限公司 | A kind of full reclaimed asphalt mixture mixing plant of environment-friendly and energy-efficient |
| CN110004811A (en) * | 2019-04-29 | 2019-07-12 | 长安大学 | A kind of hot air heating apparatus and its method for heating and controlling of tandem bituminous pavement |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108221557A (en) * | 2016-12-22 | 2018-06-29 | 薛山 | A kind of the reworked material process units and its technique of large scale addition old asphalt mixture |
| CN107326777A (en) * | 2017-08-02 | 2017-11-07 | 北京加隆工程机械有限公司 | A kind of primary material, reworked material integrated equipment |
| CN108797272A (en) * | 2018-05-03 | 2018-11-13 | 南京同力建设集团股份有限公司 | A kind of burner and its control method of twin-roll heat regeneration asphalt concrete mixing machine |
| CN109537403A (en) * | 2018-10-25 | 2019-03-29 | 江苏集萃道路工程技术与装备研究所有限公司 | A kind of full reclaimed asphalt mixture production equipment of workshop formula and production technology |
| CN109706821A (en) * | 2019-03-04 | 2019-05-03 | 江苏人杰筑路机械科技有限公司 | A kind of full reclaimed asphalt mixture mixing plant of environment-friendly and energy-efficient |
| CN110004811A (en) * | 2019-04-29 | 2019-07-12 | 长安大学 | A kind of hot air heating apparatus and its method for heating and controlling of tandem bituminous pavement |
| CN110004811B (en) * | 2019-04-29 | 2023-06-02 | 长安大学 | Hot air heating device for serial asphalt pavement and heating control method thereof |
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