CN105064174B - Intermittent forced type asphalt mixture metering method - Google Patents
Intermittent forced type asphalt mixture metering method Download PDFInfo
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- CN105064174B CN105064174B CN201510487150.4A CN201510487150A CN105064174B CN 105064174 B CN105064174 B CN 105064174B CN 201510487150 A CN201510487150 A CN 201510487150A CN 105064174 B CN105064174 B CN 105064174B
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Abstract
The invention discloses an intermittent forced type asphalt mixture metering method. Aggregate is weighed with a secondary weighing and impulse correction combined method, secondary weighing comprises primary rough weighing and secondary fine weighing, a discharging bin door is completely open during rough weighing, when the aggregate is weighed to be 80% of a set value, the bin door is half-opened, and when the fed aggregate reaches the sum of an aggregate impulse correction value and the difference between the set value and a fall compensation value during fine weighing, the discharging bin door is closed; a primary weighing method is adopted for mineral powder, the discharging bin door is completely opened during weighing, and when the fed material reaches the difference between the set value and the fall compensation value, the discharging bin door is closed; asphalt is weighed with a primary weighing and impulse correction combined method, the impulse correction value of the asphalt is adjusted according to the difference between the set total aggregate sum and the actual feeding weight, and when the fed asphalt reaches the sum of the asphalt impulse correction value and the difference between the set value and the fall compensation value, an asphalt pump is shut down. With the adoption of the method, the accuracy of the ratio of the aggregate to the asphalt of an asphalt mixture can be increased.
Description
Technical field
The present invention relates to a kind of asphalt mixture dosing method, more particularly to a kind of interval forced action type asphalt meter
Amount method.
Background technology
With the construction at full speed of the fast development of highway in China building cause, especially highway, to high quality asphalt
The demand of compound is constantly increasing.Asphalt mixing apparatus as Asphalt Pavement Mechanization Construction key device,
The stability and accuracy of the metering of asphalt mixing apparatus raw material are improved, the automaticity and productivity ratio of equipment is improved,
Reduces cost, is the emphasis of asphalt mixing apparatus Control System Design.Particles of aggregates particle diameter at different levels in blending process
Stoichiometric ratio directly affects the quality and performance of asphalt, while the quality and construction quality on road surface are also affected, due to bone
Material and pitch are feeding weighing, so if measuring accuracy is sufficiently high, can reach error range according to setting value
Interior aggregate and pitch ratio and the total input of aggregate, but due to each feedstock quality of aggregate it is very big, so the meeting in real process
There is aggregate measuring precision to meet the requirements, deviation but causes greatly very much aggregate and pitch than undesirable, or when all kinds of aggregates
Occur that when weighing skew in the same direction the excessive problem of the total input deviation of aggregate can be caused.The Key Performance Indicator of asphalt mixing plant
It is：Ensure the measuring accuracy and aggregate of raw material and the precision of pitch ratio.At present, what domestic asphalt mixture dosing was present mainly asks
Topic is cannot be while ensure the measuring accuracy and aggregate of raw material and the precision of pitch ratio.
The content of the invention
For the problems referred to above, in order to obtain higher measuring accuracy, the invention provides a kind of high interval of measuring accuracy
Forced action type asphalt mixture dosing method.
The technical solution adopted in the present invention is：Aggregate weighs the method for combining momentum correction using second weighing, breeze
The method using once weighing is weighed, pitch weighs the method using once weighing with reference to momentum correction.
1) the hot aggregate of six classes is furnished with a weigher, is weighed in six times；Aggregate is weighed and combines punching using second weighing
The method that amount is corrected, second weighing includes slightly claiming for the first time and second essence title, and i-th blowing door standard-sized sheet during thick title is weighed
To setting value 80% when, i-th door is opened into half, carry out second essence claim；If AiRepresent charge order as i aggregate meter
Value, BiRepresent charge order as i aggregate setting value, CiRepresent charge order as i aggregate compensation of drop in elevation value, DiRepresent into
Material order is the aggregate momentum correction value of i, and compensation of drop in elevation value is deducted along with aggregate when aggregate charging reaches setting value when essence claims
During momentum correction value, that is, work as Ai≥Bi-Ci+DiWhen, i-th blowing door is closed；Because blowing door and weigher apart have one
Rice or so, so when blowing door is closed, still having raw material not fall in weigher in the air, the amount of actual metered can be than closing
Amount during door is more, and compensation of drop in elevation value just refers to the amount of actual metered than gravimetric value that amount when closing door has more.Bone
Material momentum correction is entered according to the difference adjustment next one for above having fed the aggregate setting weight and actual input for finishing
The momentum correction value of aggregate, aggregate momentum correction value computing formula is
2) method of the breeze using once weighing, blowing door standard-sized sheet during weighing, if A7Represent breeze variable, B7Represent
Breeze setting value, C7Breeze compensation of drop in elevation value is represented, when charging reaches setting value deducts compensation of drop in elevation value, that is, works as A7≥B7-C7
When, blowing door is closed.
3) pitch weighs the method using once weighing with reference to momentum correction, if A8Represent pitch variable, B8Represent pitch
Setting value, C8Represent pitch compensation of drop in elevation value, D8Represent the momentum correction value of pitch；Bitumenpump standard-sized sheet during weighing, works as bitumen feed
Reach setting value and deduct compensation of drop in elevation value along with pitch momentum correction value, that is, work as A8≥B8-C8+D8When, close bitumenpump；Drip
Blue or green momentum correction is to set total amount and the difference for actually entering weight according to whole aggregates, adjusts the momentum correction value of pitch, is protected
The precision of card aggregate and pitch ratio, pitch momentum corrects computing formula and is
Compared with the conventional method, the usefulness of the inventive method is：Solve diverse bone types in die traditional aggregate metering process
Material occurs causing the excessive problem of the total input deviation of aggregate when orientation weighs skew, while also substantially increasing aggregate and pitch
The accuracy of actual charge ratio.
Description of the drawings
Fig. 1 is asphalt mixture dosing method control flow chart.
A in accompanying drawing 11-A6The aggregate measuring value of charge order 1-6, B are represented respectively1-B6Represent charge order 1-6's respectively
Aggregate setting value, C1-C6The aggregate compensation of drop in elevation value of charge order 1-6, D are represented respectively1-D6Represent charge order 1-6's respectively
Aggregate momentum correction value；A7Represent breeze variable, B7Represent breeze setting value, C7Represent breeze compensation of drop in elevation value；A8Represent drip
Blue or green variable, B8Represent pitch setting value, C8Represent pitch compensation of drop in elevation value, D8Represent pitch momentum correction value.
Fig. 2 is asphalt mixing apparatus workflow diagram.
Fig. 3 is dispenser.
Numbering 1-6 correspondence 1-6 hot aggregate storage bins in accompanying drawing 3,7 is mineral powder bin, and 8 is bitumenpump, and 9 is aggregate measuring scale, 10
For breeze weigher, 11 is pitch weigher.
Fig. 4 is three kinds of position in storehouse locations drawing of hot aggregate storage silo.
1- doors are fully closed in accompanying drawing 4；2- door standard-sized sheets；3- doors open half.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.
Interval forced action type asphalt mixing apparatus are rolled by the cold burden system of aggregate, being dried for the cold aggregate of heating is stored
Cylinder, the dust pelletizing system for collecting dust, the breeze system that breeze is provided, the pitch system that pitch is provided, the hot bone of the hot aggregate of lifting
Material elevator, the vibratory sieve for sieving hot aggregate, six hot aggregate storage bins for storing hot aggregate, metering stirring system and reception finished product material
Finished product bin composition.
Asphalt mixing apparatus workflow is as shown in Figure 2.The sand material of different size is loaded into corresponding cold
In feed bin, via conveyer belt drying drum is transported to；Sand material drying is heated to one by drying drum in the way of adverse current is heated
Constant temperature degree, drying drum top flue dust exit is connected with dust pelletizing system, and dust pelletizing system includes 12 dust-removal cloth-bags, 12 dedustings
Cloth bag is furnished with 12 dedusting cylinders, and partially unrolling, drying drum adds thermogenetic flue gas to enter dust-removal cloth-bag by fume ducts,
Dust is reclaimed and stored after treatment；Hot aggregate from drying drum hot material exit out after lifted by hot aggregate elevator,
It is discharged on vibratory sieve.By vibratory sieve by hot aggregate screening into six kinds of specifications, respectively stream enters six hot aggregate storage bins (1- in accompanying drawing 3
6) store in；According to the proportioning of setting, it is (attached that the aggregate of different size puts into aggregate measuring scale in batches according to the order of setting
In Fig. 3 9) in cumulative measurement；Bitumenpump (8 in accompanying drawing 3) pumps the heated bitumen for coming, and according to the proportioning of setting pitch metering is put into
Metering in scale (11 in accompanying drawing 3)；The powder stream that powder supplying system is sent enters mineral powder bin (7 in accompanying drawing 3) and stores, according to setting
Fixed proportioning puts into metering in breeze weigher (10 in accompanying drawing 3).
The present invention provide interval forced action type asphalt mixture dosing method be：
3 kinds of raw material metering process are as shown in Figure 1.The metering of raw material is mainly once weighed and 2 kinds of methods of second weighing.
Second weighing：Claim to claim with second essence including thick for the first time, blowing door standard-sized sheet (2 in accompanying drawing 4), is weighed to setting value during thick title
80% when, door is opened into half (3 in accompanying drawing 4), carry out second essence claim, deduct compensation of drop in elevation value when charging reaches setting value
During along with momentum correction value, blowing door is closed (1 in accompanying drawing 4).Once weigh：Blowing door standard-sized sheet or bitumenpump standard-sized sheet,
When charging reaches setting value deducts compensation of drop in elevation value, bitumenpump is closed or closed to blowing door.Aggregate measuring adopts secondary title
The mode of amount, powder and pitch are by the way of once weighing.
In order to reduce the deviation of the total input of six kinds of aggregates and aggregate and pitch ratio, the momentum correction used in metering process
Method, momentum correction is divided into the correction of aggregate momentum and the correction of pitch momentum again.The correction of aggregate momentum is referred to according to above
The momentum correction value of the aggregate that the aggregate setting weight that charging is finished enters with the difference adjustment next one of actual input, aggregate momentum
Correction value takes the difference of setting weight and actual input, and compensation of drop in elevation value is deducted along with aggregate when aggregate charging reaches setting value
During momentum correction value, blowing door is closed；The correction of pitch momentum to refer to and set total amount according to whole aggregates and actually enter weight
Difference, adjust the momentum correction value of pitch, deduct compensation of drop in elevation value along with pitch momentum when bitumen feed reaches setting value
During correction value, bitumenpump is closed.
It is more than presently preferred embodiments of the present invention, any pro forma restriction, every foundation is not made to the present invention
The technical spirit of the present invention belongs to inventive technique to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of scheme.
Claims (1)
1. a kind of interval forced action type asphalt mixture dosing method, it is characterised in that：The hot aggregate of six classes is furnished with a weigher, point
Weighed for six times；Wherein,
Aggregate weighs the method for combining momentum correction using second weighing, and second weighing includes thick for the first time title and second essence
Claim, i-th door when being weighed to the 80% of setting value, is opened half by i-th blowing door standard-sized sheet during thick title, carries out second
Essence claims；If AiRepresent charge order as i aggregate measuring value, BiRepresent charge order as i aggregate setting value, CiRepresent charging
It is sequentially the aggregate compensation of drop in elevation value of i, DiRepresent charge order as i aggregate momentum correction value, essence claim when when aggregate charging reach
When deducting compensation of drop in elevation value along with aggregate momentum correction value to setting value, that is, work as Ai≥Bi-Ci+DiWhen, i-th blowing door
Close；Because blowing door and weigher apart have one meter or so, so when blowing door is closed, still having raw material not in the air
In falling weigher, the amount of actual metered can be more more than amount when closing door, and compensation of drop in elevation value just refers to actual metered
Measure the gravimetric value having more than amount when closing door；The correction of aggregate momentum is that basis has above fed the aggregate setting weight for finishing
Amount adjusts the momentum correction value of the aggregate that the next one enters with the difference of actual input, and aggregate momentum correction value computing formula is
Method of the breeze using once weighing, blowing door standard-sized sheet during weighing, if A7Represent breeze variable, B7Represent breeze to set
Definite value, C7Breeze compensation of drop in elevation value is represented, when charging reaches setting value deducts compensation of drop in elevation value, that is, works as A7≥B7-C7When, put
Feed bin door is closed；
Pitch weighs the method using once weighing with reference to momentum correction, if A8Represent pitch variable, B8Represent pitch setting
Value, C8Represent pitch compensation of drop in elevation value, D8Represent the momentum correction value of pitch；Bitumenpump standard-sized sheet during weighing, when bitumen feed reaches
Setting value deducts compensation of drop in elevation value along with pitch momentum correction value, that is, work as A8≥B8-C8+D8When, close bitumenpump；Pitch is rushed
Amount correction is to set total amount and the difference for actually entering weight according to whole aggregates, adjusts the momentum correction value of pitch, it is ensured that bone
The precision of material and pitch ratio, pitch momentum corrects computing formula and is
。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510487150.4A CN105064174B (en) | 2015-08-10 | 2015-08-10 | Intermittent forced type asphalt mixture metering method |
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| CN201510487150.4A CN105064174B (en) | 2015-08-10 | 2015-08-10 | Intermittent forced type asphalt mixture metering method |
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| CN105064174A CN105064174A (en) | 2015-11-18 |
| CN105064174B true CN105064174B (en) | 2017-05-17 |
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| CN109883523A (en) * | 2019-04-06 | 2019-06-14 | 南阳盛易德环保科技有限公司 | A kind of accurate measuring device and control method applied to illiquidity material |
| CN110258251B (en) * | 2019-07-20 | 2024-04-05 | 江南大学 | Hot aggregate temperature control device and method for asphalt mixture stirring station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177008A (en) * | 1994-12-27 | 1996-07-09 | Nikko Co Ltd | Control method of aggregate supply in asphalt plant |
| CN2330694Y (en) * | 1998-08-17 | 1999-07-28 | 郑玉銮 | Fine-control dilivery gate for mixer of bituminous concrete |
| CN2797428Y (en) * | 2005-06-30 | 2006-07-19 | 南阳市陆德筑路机械制造有限公司 | Bulk material storing device |
| CN104260207A (en) * | 2014-09-19 | 2015-01-07 | 中国铁道科学研究院铁道建筑研究所 | Dynamic control system and method for batching accuracy of concrete mixing plant |
-
2015
- 2015-08-10 CN CN201510487150.4A patent/CN105064174B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177008A (en) * | 1994-12-27 | 1996-07-09 | Nikko Co Ltd | Control method of aggregate supply in asphalt plant |
| CN2330694Y (en) * | 1998-08-17 | 1999-07-28 | 郑玉銮 | Fine-control dilivery gate for mixer of bituminous concrete |
| CN2797428Y (en) * | 2005-06-30 | 2006-07-19 | 南阳市陆德筑路机械制造有限公司 | Bulk material storing device |
| CN104260207A (en) * | 2014-09-19 | 2015-01-07 | 中国铁道科学研究院铁道建筑研究所 | Dynamic control system and method for batching accuracy of concrete mixing plant |
Non-Patent Citations (1)
| Title |
|---|
| 高精度间歇式沥青混合料搅拌设备配料系统研究;叶露林，陆锦军，蒋伟峰，张晔;《公路》;20150525(第5期);正文第191页右栏倒数第8页至192页右栏倒数第8页以及图3 * |
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Effective date of registration: 20201127 Address after: Happy township of Gangzha District of Jiangsu city in Nantong province 226000 jiangba village fourteen groups Patentee after: NANTONG SUTONG CIVIL AIR DEFENCE PROTECTION EQUIPMENT Co.,Ltd. Address before: No. 1800 road 214122 Jiangsu Lihu Binhu District City of Wuxi Province Patentee before: Jiangnan University |
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