CN102587259B - Pitch stirring device with hot recycling function - Google Patents
Pitch stirring device with hot recycling function Download PDFInfo
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- CN102587259B CN102587259B CN201210042537.5A CN201210042537A CN102587259B CN 102587259 B CN102587259 B CN 102587259B CN 201210042537 A CN201210042537 A CN 201210042537A CN 102587259 B CN102587259 B CN 102587259B
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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 recycling function.
Background technology
Bituminous mixing plant is for adapting to national conditions in recent years, meets the demand of newly-built Expressway Asphalt compound, and asphalt mixing plant, towards the large future development of output, has occurred the asphalt mixing plant of 5000 types, 6000 types, 7500 types.
As shown in Figure 1, asphalt mixing plant comprises powder system, pitch system, primary machine system, stirring system, dust pelletizing system and finished product bin; Wherein: 1) in powder system, powder sends into filler bin storage through conveyer, then is delivered to the outputs to be batched such as the first measuring subsystem from filler bin; 2), in pitch system, pitch is delivered to the outputs to be batched such as the second measuring subsystem after melting dehydration, being heated to uniform temperature; 3) in primary machine system, primary material adopts sand, broken (gravel) stone etc. as aggregate, after aggregate carries out first gradating material by aggregate batching subsystem, send into drying roller by belt conveyor and dry the temperature being heated to and meeting and stir required bituminous mixture, then be promoted to Vibration Screen through elevator be divided into the hot aggregate of different size and store respectively in corresponding hot aggregate bin, this hot aggregate bin is connected with the 3rd measuring subsystem; 4) stirring system comprises agitator, according to the requirement of drop mixture gradation, put in agitator after above-mentioned powder, above-mentioned pitch and above-mentioned aggregate being measured respectively by the first measuring subsystem, the second measuring subsystem and the 3rd measuring subsystem, stir in this agitator and store in finished bin after making finished product; 5) dust pelletizing system comprises sack cleaner, and the feed end of drying roller is connected respectively by dust removing tube is corresponding with the respective end of sack cleaner with the main building negative tube of asphalt mixing plant; Like this, dust removal process can be carried out to the dust in the gas containing impurity such as dusts of the drying roller be connected successively, elevator, vibrosieve and hot aggregate bin inside and main building by sack cleaner; 6) finished product bin is mainly used in storing the finished products such as the bituminous mixture prepared of stirring system.
As shown in Figure 2, asphalt-regenerating mixing plant comprises powder system, pitch system, primary machine system, regenerating device system, regenerant system, stirring system, dust pelletizing system and finished product bin.Wherein, powder system, pitch system, primary machine system, stirring system, dust pelletizing system are identical with the system of six in above-mentioned asphalt mixing plant with finished product bin.Other differences are: 1) in regenerating device system, reworked material adopts old asphalt mixture etc., old asphalt mixture dries heating through fragmentation batching, the second elevator lifting, the second drying roller successively, then be delivered to reworked material bin, be delivered to the outputs to be batched such as the 4th measuring subsystem from reworked material bin again; 2) in regenerant system, regenerative agent is stored in regenerative agent storehouse in advance, is then delivered to the outputs to be batched such as the 5th measuring subsystem from regenerative agent storehouse; 3) last, according to the requirement of drop mixture gradation, put in the agitator in stirring system after powder, pitch, aggregate, old asphalt mixture and regenerative agent being measured respectively by the first measuring subsystem, the second measuring subsystem, the 3rd measuring subsystem, the 4th measuring subsystem and the 5th measuring subsystem, stir in this agitator and store in finished bin after making finished product; 4) dust pelletizing system comprises sack cleaner, the first drying roller in primary machine system is communicated with by airduct with the second drying roller in regenerating device system, and the first drying roller is connected respectively by dust removing tube is corresponding with the respective end of sack cleaner with the second drying roller; Like this, dust removal process is carried out by the gas containing impurity such as dusts of sack cleaner to the first drying roller, the second drying roller, elevator, vibrosieve and hot aggregate bin inside.
Adopt above-mentioned asphalt mixing plant, the large-scale bituminous mixing plant of asphalt-regenerating mixing plant exists ultra-wide transfinites, transport difficult, mounting cost is high, and production model is single, and manufacturing technology requires high difficult point.Particularly in large-scale bituminous mixing plant, the 3rd measuring subsystem is adopted to carry out cumulative measurement to multiple aggregate, because the consumption of various aggregate is large, for a cycle period 45s, metering and the steady scale time of various aggregate are shorter, cause the measuring accuracy of each aggregate not high.
And, when asphalt-regenerating mixing plant is produced, on the one hand because asphalt-regenerating mixing plant affects by deduster dedusting area, agitator capacity etc., output often can only reach the designed productive capacity of primary machine system, reduce by primary machine system the requirement that output meets reworked material interpolation, cause the waste of primary machine system production capacity and power; On the other hand, when asphalt-regenerating mixing plant only enables primary machine equipment, regenerating device equipment is not enabled, 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 save the asphalt mixing plant that equipment cost can improve again the band hot recycling function of output
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of asphalt mixing plant with hot recycling function, comprise conventional powder system and conventional pitch system, it is characterized in that, also comprise primary machine system, regenerating device system, stirring system, dust pelletizing system and finished product bin: 1) this primary machine system comprises the aggregate batching subsystem, the first drying roller, the first elevator, the first vibrosieve, the first hot aggregate bin, the 3rd measuring subsystem that are connected successively; 2) this regenerating device system comprises the reworked material and aggregate batching subsystem, the second elevator and the second drying roller that are connected successively, and the discharge end of this second drying roller is connected with transfer valve; This transfer valve has the first discharge end and the second discharge end, and the first discharge end of this transfer valve is connected with the second vibrosieve, the second hot aggregate bin and the 4th measuring subsystem that discharge end and feed end are connected successively; Second discharge end correspondence of this transfer valve is connected to the corresponding feed end of the second hot aggregate bin; 3) the corresponding feed end difference correspondence of this stirring system is communicated with the output of the output of the second measuring subsystem, the output of the 3rd measuring subsystem and the 4th measuring subsystem in the output of the first measuring subsystem in described powder system, described pitch system, and the discharge end of this stirring system is communicated to described finished product bin; 4) this dust pelletizing system comprises sack cleaner, and described first drying roller, the first elevator are communicated with the respective inlets end of this sack cleaner respectively by dust removing tube with the first hot aggregate bin.
Described first drying roller is provided with the first air port near feed end place, and described second oven dry is rolled and is provided with the second air port near discharge end, and described first drying roller is connected with the airduct at the second air port place by being arranged on the first wind with the second drying roller.
Described first drying roller and the second drying roller are respectively with RHVC.
Described RHVC is frequency converter.
In described aggregate batching subsystem, primary material is housed, in described reworked material and aggregate batching subsystem, reworked material or primary material is housed.
After adopting said structure, a kind of asphalt mixing plant with hot recycling function of the present invention has following beneficial effect: in primary asphalt mixing process, start primary machine system and regenerating device system simultaneously, by conveyor or drag conveyor, the aggregate in primary machine system and regenerating device system is rendered in the agitator in stirring system simultaneously after requiring to measure respectively according to asphalt mixture gradation, then add certain pitch, powder stirring becomes bituminous mixture; In the present invention, first drying roller and the second drying roller can oven-dried aggregates simultaneously, first vibrosieve and the second vibrosieve sieve different specification aggregates simultaneously, twin-roll drop temperature is utilized to balance control technology, by configuring suitable agitator capacity and the dedusting area of sack cleaner, the object increased production can be realized further, reach saving equipment cost and can improve output again, realize the effect of Increasing Production and Energy Saving; For the existing large-scale asphalt mixing plant with an aggregate weighing scale, the present invention adopts an aggregate weighing scale in the 3rd measuring subsystem of primary machine system, an aggregate weighing scale is adopted in the 4th measuring subsystem of regenerating device system, by two aggregate weighing scales cumulative measurement aggregate respectively, extend the metering of various material and steady scale time, thus carry and increase measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the production procedure schematic diagram of existing asphalt mixing plant;
Fig. 2 is the production procedure schematic diagram of existing asphalt-regenerating mixing plant;
Fig. 3 is the production procedure schematic diagram of a kind of asphalt mixing plant with hot recycling function of the present invention;
Fig. 4 is that the plane of a kind of asphalt mixing plant with hot recycling function of the present invention lays schematic diagram;
Fig. 5 is the structural representation of the aggregate batching subsystem in the present invention;
Fig. 6 is the structural representation of an angle of primary machine system in the present invention;
Fig. 7 is the structural representation of an angle of regenerating device system in the present invention;
Fig. 8 is the structural representation of another angle of regenerating device system in the present invention;
Fig. 9 is the structural representation of another angle of primary machine system in the present invention.
In figure:
Powder system 1 pitch system 2
Primary machine system 3 aggregate batching subsystem 31
First drying roller 32 first elevator 33
First vibrosieve 34 first hot aggregate bin 35
3rd measuring subsystem 36 regenerating device system 4
Reworked material and aggregate batching subsystem 41 second elevator 42
Second drying roller 43 second vibrosieve 44
Second hot aggregate bin 45 the 4th measuring subsystem 46
Stirring system 5 dust pelletizing system 6
Detailed description of the invention
In order to explain technical scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
As shown in Fig. 3 to 9, a kind of asphalt mixing plant with hot recycling function of the present invention, comprises, powder system 1, pitch system 2, primary machine system 3, regenerating device system 4, stirring system 5, dust pelletizing system 6, finished product bin and regenerant system.
Powder system 1 adopts conventional structure, and it mainly comprises filler bin, conveyer and the first measuring subsystem, and powder is delivered to the outputs to be batched such as the first measuring subsystem from filler bin through conveyer.
Pitch system 2 adopts conventional structure, and it mainly comprises the asphalt tank, heat-conducting oil furnace and the second measuring subsystem that are connected successively.Pitch is delivered to the outputs to be batched such as the second measuring subsystem after melting dehydration, heating.
Primary machine system 3 comprises aggregate batching subsystem 31, first drying roller 32, first elevator 33, first vibrosieve 34, first hot aggregate bin 35 that discharge end and feed end be connected successively and the 3rd measuring subsystem the 36, three measuring subsystem 36 and comprises aggregate and claim.
Regenerating device system 4 comprises the reworked material and aggregate batching subsystem 41, second elevator 42, second drying roller 43, second vibrosieve 44, second hot aggregate bin 45 and the 4th measuring subsystem 46 that are connected successively; Wherein, the feed end of the second vibrosieve 44 is equipped with transfer valve, and this transfer valve can be selected screening to supplied materials and not sieve, and the 4th measuring subsystem 46 comprises aggregate and claims.
As preferred embodiment of the present invention, the first drying roller 32 and the second drying roller 43 are respectively with RHVC, and this RHVC is frequency converter, are realized the frequency control of the first drying roller 32 and the second drying roller 43 by frequency converter.In addition, second drying roller 43 is provided with the second air port near discharge end place, first drying roller 32 is provided with the first air port near feed end place, arranges airduct in the first air port and the second air port place, by this airduct, the second drying roller 43 is connected with the first drying roller 32; Because the temperature of the second drying roller 43 is higher than the first drying roller 32, heat is made to flow to the first drying roller 32 from the second drying roller 43 by above-mentioned airduct like this.
Stirring system 5 comprises agitator, and the corresponding feed end of this agitator is connected respectively the output of the 4th measuring subsystem 46 in the output of the 3rd measuring subsystem 36 in the output of the second measuring subsystem in the output of the first measuring subsystem in powder system 1, pitch system 2, primary machine system 3 and regenerating device system 4.
Dust pelletizing system 6 comprises sack cleaner, and the feed end of the first drying roller 32 is connected respectively by dust removing tube is corresponding with the respective end of sack cleaner with the discharge end of the first hot aggregate bin 35.Like this, by configuring dedusting area and the agitator capacity of suitable sack cleaner, the object increased production can be realized further, and dust removal process can be carried out to the gas containing impurity such as dusts of the first drying roller 32, first elevator 33, first vibrosieve 34 be connected successively and the first hot aggregate bin 35 inside by sack cleaner; Because the second drying roller 43 is connected by airduct with the first drying roller 32, sack cleaner also can carry out dust removal process to the dusty gas in the second drying roller 43.
As another embodiment of the present invention, the feed end of the second drying roller 43 also connects by dust removing tube is corresponding with the respective end of sack cleaner; Like this, the first drying roller 32 and the second drying roller 43 can carry out sufficient dedusting respectively by dust removing tube, and the first drying roller 32 makes full use of the heat of the second drying roller 43 by airduct.
Regenerant system adopts conventional structure, and it mainly comprises regenerative agent storehouse and the 5th measuring subsystem, and regenerative agent is stored in regenerative agent storehouse in advance, is then delivered to the outputs to be batched such as the 5th measuring subsystem from regenerative agent storehouse.
Above-mentioned finished product bin adopts conventional structure, and it is mainly used in the finished products such as the bituminous mixture of storage stirring system 5 preparation.
The present invention adds man-hour to primary material, can start primary machine system 3 and regenerating device system 4 is processed primary material respectively simultaneously, compared with the existing production model that only can start primary machine system, present invention greatly enhances output.In addition, added to reworked material man-hour, identical with the production model of existing asphalt-regenerating mixing plant.
Primary asphalt mixing process is specific as follows:
1, in powder system 1, powder is delivered in filler bin through conveyer and stores, then is delivered to the outputs to be batched such as the first measuring subsystem from filler bin;
2, in pitch system 2, pitch dewaters through melting, heating and thermal insulation is delivered to the outputs to be batched such as the second measuring subsystem;
3, in primary machine system 3, primary material adopts sand, broken (gravel) stone etc. as aggregate, after aggregate carries out first gradating material by aggregate batching subsystem 31, send into the first drying roller 32 by belt conveyor and dry the temperature being heated to and meeting the bituminous mixture needed for stirring, then be promoted in the first vibrosieve 34 through the first elevator 33, after the hot aggregate that the first vibrosieve 34 is sieved into different size, storage is stored to the first hot aggregate bin 35 of correspondence respectively, is delivered to the outputs to be batched such as the 3rd measuring subsystem 36 from the first hot aggregate bin 35;
4, in regenerating device system 4, above-mentioned transfer valve in second vibrosieve 44 is selected to sieve supplied materials, primary material adopts sand, broken (gravel) stone etc. are as aggregate, after reworked material and aggregate batching subsystem 41 pairs of aggregates carry out first gradating material, send in the second elevator 42 through belt conveyor, after being promoted to the second drying roller 43 oven dry heating by the second elevator 42, be sieved into the hot aggregate of different size by the second vibrosieve 44 after, correspondence is stored in the second hot aggregate bin 45 respectively, then the outputs to be batched such as the 4th measuring subsystem 46 are delivered to from the second hot aggregate bin 45,
5, according to the requirement of drop mixture gradation, put in the agitator in stirring system 5 after the above-mentioned aggregate in above-mentioned powder, above-mentioned pitch, primary machine system 3 and the above-mentioned aggregate in regenerating device system 4 being measured respectively by the first measuring subsystem, the second measuring subsystem, the 3rd measuring subsystem 36 and the 4th measuring subsystem 46, stir in this agitator and store in finished bin after making finished product;
6, in dust pelletizing system 6, the gas containing impurity in the second drying roller 43, first drying roller 32, first elevator 33, first vibrosieve 34 be communicated with successively on the one hand and the first hot aggregate bin 35 carries out dust removal process by sack cleaner; Heat on the other hand in the second drying roller 43 is utilized for the first drying roller 32 by airduct.
In sum, in primary asphalt mixing process, start primary machine system 3 and regenerating device system 4 simultaneously, by conveyor or drag conveyor, the aggregate in primary machine system 3 and regenerating device system 4 is rendered in the agitator in stirring system 5 simultaneously after requiring to carry out cumulative measurement according to drop mixture gradation, then add certain pitch, powder stirring becomes bituminous mixture.
In the present invention, increase the dedusting area of mixed capacity and sack cleaner, first drying roller 32 and the second drying roller 43 can oven-dried aggregates simultaneously, first vibrosieve 34 and the second vibrosieve 44 can sieve different specification aggregates simultaneously, utilize twin-roll frequency conversion and exhaust-gas treatment stem heat balance technique, equipment cost can be saved and can improve output again, realize the effect of Increasing Production and Energy Saving.
For the existing large-scale asphalt mixing plant with an aggregate weighing scale, the present invention adopts an aggregate weighing scale in the 3rd measuring subsystem 36 of primary machine system 3, an aggregate weighing scale is adopted in the 4th measuring subsystem 46 of regenerating device system 4, by two aggregate weighing scales cumulative measurement respectively, extend the metering of various material and steady scale time, thus carry and increase measuring accuracy.
Adopt the present invention, the process of carrying out asphalt-regenerating stirring is roughly as follows:
1, powder system 1, pitch system 2 are roughly the same to 3 with the step 1 in above-mentioned primary asphalt mixing process with each process of primary machine system 3;
2, in regenerating device system 4, above-mentioned transfer valve in second vibrosieve 44 is selected not sieve supplied materials, reworked material adopts old asphalt mixture etc., old asphalt mixtures etc. are successively after fragmentation batching, send in the second elevator 42 through belt conveyor, be promoted to the second drying roller 43 by the second elevator 42 and dry heating, then corresponding storage, in the second hot aggregate bin 45, is delivered to the outputs to be batched such as the 4th measuring subsystem 46 from the second hot aggregate bin 45 respectively;
3, regenerative agent is delivered to the outputs to be batched such as the 5th measuring subsystem from regenerative agent storehouse;
4, according to the requirement of drop mixture gradation, put in the agitator in stirring system 5 after the above-mentioned aggregate in above-mentioned powder, above-mentioned pitch, primary machine system 3, the reworked material in regenerating device system 4 and the regenerative agent in regenerant system being measured respectively by above-mentioned first measuring subsystem, above-mentioned second measuring subsystem, the 3rd measuring subsystem 36, the 4th measuring subsystem 46 and above-mentioned 5th measuring subsystem, stir in this agitator and store in finished bin after making finished product;
5, the processing procedure of dust pelletizing system 6 is roughly the same with the step 6 in above-mentioned primary asphalt mixing process.
In a word, the present invention utilizes the first drying roller 32 and the second drying roller 43 to heat primary material and asphalt-regenerating material respectively, have employed agitator of the present invention and can carry out five kinds of production models: bituminous mixing plant production model, parallel double cylinder simultaneously hot aggregates, dual shale shaker sieve hot aggregate production model, hot in-plant reclaimed production model, cold in-plant recycling capable product pattern, asphalt mixture warm-mixing pattern simultaneously.
Above-described embodiment and accompanying drawing non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (4)
1. the asphalt mixing plant with hot recycling function, comprises conventional powder system and conventional pitch system, it is characterized in that, also comprise primary machine system, regenerating device system, stirring system, dust pelletizing system and finished product bin:
1) this primary machine system comprises the aggregate batching subsystem, the first drying roller, the first elevator, the first vibrosieve, the first hot aggregate bin, the 3rd measuring subsystem that are connected successively;
2) this regenerating device system comprises the reworked material and aggregate batching subsystem, the second elevator and the second drying roller that are connected successively, and the discharge end of this second drying roller is connected with transfer valve; This transfer valve has the first discharge end and the second discharge end, and the first discharge end of this transfer valve is connected with the second vibrosieve, the second hot aggregate bin and the 4th measuring subsystem that discharge end and feed end are connected successively; Second discharge end correspondence of this transfer valve is connected to the corresponding feed end of the second hot aggregate bin;
3) the corresponding feed end difference correspondence of this stirring system is communicated with the output of the output of the second measuring subsystem, the output of the 3rd measuring subsystem and the 4th measuring subsystem in the output of the first measuring subsystem in described powder system, described pitch system, and the discharge end of this stirring system is communicated to described finished product bin;
4) this dust pelletizing system comprises sack cleaner, and described first drying roller, the first elevator are communicated with the respective inlets end of this sack cleaner respectively by dust removing tube with the first hot aggregate bin;
In described aggregate batching subsystem, primary material is housed, in described reworked material and aggregate batching subsystem, reworked material or primary material is housed.
2. a kind of asphalt mixing plant with hot recycling function as claimed in claim 1, it is characterized in that, described first drying roller is provided with the first air port near feed end place, described second drying roller is provided with the second air port near discharge end, and described first drying roller is connected with the airduct at the second air port place by being arranged on the first air port with the second drying roller.
3. a kind of asphalt mixing plant with hot recycling function as claimed in claim 1, is characterized in that, described first drying roller and the second drying roller are respectively with RHVC.
4. a kind of asphalt mixing plant with hot recycling function as claimed in claim 3, is characterized in that, described RHVC is frequency converter.
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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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| CN102587259B true CN102587259B (en) | 2015-04-01 |
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| 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 |
| 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 |
| 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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