CN2557582Y - Digital image technology based material collection measuring controller for asphalt mixer - Google Patents

Abstract

The utility model is an aggregate measuring control device of an asphalt mixing plant based on the digital image technique, which belongs to the highway engineering and construction technique equipment. The utility model comprises a computer, a camera, an aggregate feed apparatus, an asphalt pump, an asphalt flow meter, a powder spiral propeller, a powder flow meter, a temperature sensor, a drying and mixing device and a finished product silo which are connected with one another by respective signal lines and pipelines. The utility model can greatly improve the production efficiency of the bituminous mixture, reduce costs including equipment cost and improve the product quality and market competitiveness.

Description

Asphalt mixing machine aggregate metering control device based on Digital image technology

(1) technical field:

The utility model is based on the asphalt mixing machine aggregate metering control device of Digital image technology, belongs to the highway engineering construction technical equipment.

(2) background technology:

High-quality bituminous mixture is the prerequisite of building the high quality asphalt road surface, produce the interpolation quantity (measure control) that high-quality bituminous mixture must strict each constituent of control, for example the addition of the addition of the addition of the addition of breeze, fine aggregate, coarse aggregate, pitch etc.Traditional pitch lorry mounted mixer is " a continuous asphalt lorry mounted mixer ", and its production technology is: different gathering materials directly sent into drying roller with conveyer belt, behind the hyperthermia drying, adds breeze and pitch mixes and stirs continuously, discharging.Adopt the advantage of this lorry mounted mixer and the mode of production to be: production efficiency height, equipment price are cheap; Shortcoming is: various inputs of gathering materials do not have metering device, control various volumes that gather materials and proportioning by the rotating speed of the defeated material of experience adjustments conveyer belt fully, and the quality assurance precision is lower.Given this, " batch (-type) pitch lorry mounted mixer " at first developed in Europe after the eighties, and very fast many in the world countries are popularized.This lorry mounted mixer is that interpolation vibrosieve equipment, the measuring equipment of gathering materials, batch (-type) mix and stir mode and computer monitoring part on the basis of continuous mixer.The advantage of batch (-type) pitch lorry mounted mixer is: can accurately control the proportioning of bituminous mixture, produce high-quality bituminous mixture.Shortcoming is: production efficiency low (only be equivalent to continuous asphalt lorry mounted mixer yield in unit time half); Equipment price costliness (being equivalent to more than a times of continuous mixer price).

(3) utility model content:

The purpose of this utility model is exactly to exist various inputs of gathering materials not have metering device in order to overcome and to solve existing continuous asphalt lorry mounted mixer, the rotating speed that only relies on the defeated material of experience adjustments conveyer belt is controlled various volumes that gather materials and proportioning, make that the quality precision is lower, and existing batch (-type) pitch lorry mounted mixer exists production efficiency low again, the shortcoming and the problem of equipment price costliness etc., research, design a kind of pitch lorry mounted mixer mineral aggregate metering control based on Digital image technology, it adopts computer digital image technical equipment continuous asphalt lorry mounted mixer, make it keep the production efficiency height, on the basis of advantages such as equipment price is cheap, produce the high quality asphalt compound that is equivalent to batch mixer, and can be used to transform batch (-type) pitch lorry mounted mixer, it is enhanced productivity.

The utility model is realized by following technical proposals: based on the formation structural representation of the asphalt mixing machine aggregate metering control device of Digital image technology as shown in Figure 1, it gathers materials the measure control flow chart as shown in Figure 2.It is by central control computer 1, digital camera 2, aggregate feeding device 3, pitch deposit and feedway---bitumenpump 4, asphalt flow meter 5, powder spiral propeller 6, powder flow meter 7, temperature pick up 8, oven dry mixing device 9 gathers materials, finished product bin 10 common installations connect and compose, its mutual alignment and annexation are: central control computer is respectively by the data image signal line, the aggregate feeding control signal wire, pitch is supplied with holding wire, pitch flow control signal line, breeze material boost control signal line, powder stream flow control signal line, the temperature sensor signal line, control signal wire is mixed and stirred in the oven dry of gathering materials, finished product material control signal wire respectively with digital camera 2, aggregate feeding device 3, pitch deposit and feedway---bitumenpump 4, asphalt flow meter 5, powder spiral propeller 6, powder flow meter 7, temperature pick up 8, oven dry mixing device 9 gathers materials, finished product bin 10 is electrically connected mutually, gather materials oven dry mixing device 9 respectively by the aggregate feeding pipeline, the pitch pipeline, powder spiral propeller pipeline, oven dry mixing device pipeline respectively with the powder device 3 that gathers materials, bitumenpump 4, powder spiral propeller 6, finished product bin 10 is connected, and temperature pick up 8 is installed in the oven dry mixing device.

The measure control principle of gathering materials of the present utility model is as follows: the aggregate feeding device that adopts digital camera technology dynamic surveillance continuous asphalt lorry mounted mixer, collect after each grade gather materials or mix the digital image information that gathers materials, send data image signal to central control computer, central control computer is handled digital image information, isolating each grade gathers materials or mixes the middle particle size of gathering materials, shape and shared quantity percentage, i.e. weight, volume information; The formate gradation composition curve is also compared with the target graduation curve, if do not satisfy, then analyzes reason, and it is many or few to see which shelves gathers materials, and reintroduces rational quantitative requirement; Defeated material conveyer belt rotating speed is promptly adjusted in control in real time automatically or adjust the aggregate feeding device, makes it satisfy desired each grade of grating quantity of gathering materials, and then produces qualified bituminous mixture; Concrete control procedure is: 1. digital camera 2 monitors mineral aggregate charging gears 3, is that central control computer 1 provides real-time and continuous gather materials geometric properties and the many-sided information of quantity in the mode of digital picture; Central control computer 1 is realized the measure control of gathering materials by controlling the charging rate that each grade gathers materials; 2. obtain the addition information of pitch and breeze by asphalt flow meter 5 and powder flow meter 7, realize measure control by control bitumenpump 4 and powder spiral propeller 6; 3. obtain to gather materials by temperature pick up 8 and dry the temperature information of mixing device 9, control the temperature and the mixing time of this device.

The utility model is compared with existing technical equipment, has following advantage and beneficial effect: (1) the utility model belongs to uses the technology category that new and high technology is transformed conventional production equipment.Because the dosage of mineral aggregate can't accurately be measured and control to existing technical equipment, produces qualified bituminous mixture, national relevant specification is prohibited and use the continuous asphalt lorry mounted mixer in the High Grade Bitumen Pavement engineering.Use technical solutions of the utility model, can vitalize assets, turn waste into wealth, increase substantially the production efficiency of bituminous mixture, reduce equipment cost, improve the quality of products; (2) another of application technical solutions of the utility model is also advantageous in that and need not existing equipment is carried out big change, only needs to add simple control elements such as video camera, computer and corresponding software system and just can deal with problems.Improvement cost is equivalent to one of percentage of equipment purchase price approximately; (3) technical solutions of the utility model also can be used for the production of new equipment, reduce equipment cost, improve the market competitiveness; (4) following 5～10 years, China will build nearly 20,000 kilometers speedways, need nearly 200,000,000 tons of bituminous mixture, if add the construction and the needed bituminous mixture of road maintenance of other grade road, its quantity will be very huge.On this meaning, the utility model will have broad application prospects and huge economic and social benefit.

(4) description of drawings:

Below Figure of description is further specified as follows: the structure that Fig. 1 is based on the asphalt mixing machine aggregate metering control device of digital Digital image technology constitutes schematic diagram; Fig. 2 is its measure control flow chart that gathers materials.Among the figure: the 1st, central control computer, the 2nd, digital camera, the 3rd, aggregate feeding device, the 4th, pitch deposit and feedway---bitumenpump, the 5th, asphalt flow meter, the 6th, powder spiral propeller, the 7th, powder flow meter, the 8th, temperature pick up, the 9th, oven dry mixing device, the 10th, finished product bin.

(5) specific embodiment:

Utility model people thinks that the optimal way of implementing technical solutions of the utility model can be as follows: (1) is by processing and manufacturing shown in Figure 1 or choose each parts or device, generally speaking, the utility model is continued to use existing pitch basically and is mixed and stirred and production technology, except that supervising device, need not transform other parts substantially.Supervising device newly adds hardware and technical requirements is as follows: 1. industrial digital camera 2, resolution ratio is: million pixels or more than, for example optional PVCam-32 type; 2. central control computer 1 is optional with industrial control computer P-11 or above, 64MB RAM or above, 6GB hard disk or above, WIND0WS operating system or other; Aggregate feeding device 3 in the original pitch lorry mounted mixer system can be selected sheet metal for use, adopts machine-tooled method to process, and specification can be 1.5 * 1.5 * 1.5m ³Maybe can select the GJ10 type for use; Pitch lays in and feedway---bitumenpump can be selected the LBN500 type for use; Asphalt flow meter can be selected the D007 type for use; Powder spiral propeller 6 can be selected the LT50S type for use; Powder flow meter 7 can be selected the fL05 type for use; TEMP plays 8 can select the TW02 type for use; Oven dry mixing device 9 can be selected the XA2000 type for use; Finished product bin 10 can be selected sheet metal for use, adopts the machine-tooled method processing and manufacturing to form, and specification can be Φ 4 * 10m ³Processing and manufacturing or select for use respectively install model after, can connection be installed by described position of top manual and interconnected relationship; (2) again by the gather materials software program of measure control of establishment shown in Figure 2, and be input in the holder of selected central control computer 1, carry out step-by-step operation and implement by gather materials measure control principle and control procedure of of the present utility model described in the top manual then, just can implement the utility model preferably.

Claims (1)

1, a kind of asphalt mixing machine aggregate metering control device based on Digital image technology, it is characterized in that: it is by central control computer (1), digital camera (2), aggregate feeding device (3), pitch deposit and feedway---bitumenpump (4), asphalt flow meter (5), powder spiral propeller (6), powder flow meter (7), temperature pick up (8), oven dry mixing device (9) gathers materials, the common installation of finished product bin (10) connects and composes, its mutual alignment and annexation are: central control computer (1) is respectively by the data image signal line, the aggregate feeding control signal wire, pitch is supplied with holding wire, pitch flow control signal line, breeze material boost control signal line, powder stream flow control signal line, the temperature sensor signal line, control signal wire is mixed and stirred in the oven dry of gathering materials, finished product material control signal wire respectively with digital camera (2), aggregate feeding device (3), pitch deposit and feedway---bitumenpump (4), asphalt flow meter (5), powder spiral propeller (6), powder flow meter (7), temperature pick up (8), oven dry mixing device (9) gathers materials, finished bin material (10) is electrically connected mutually, gather materials oven dry mixing device (9) respectively by the aggregate feeding pipeline, the pitch pipeline, powder spiral propeller pipeline, oven dry mixing device pipeline respectively with the powder device (3) that gathers materials, bitumenpump (4), powder spiral propeller (6), finished product bin (10) is connected, and temperature pick up (8) is installed in the oven dry mixing device.

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