CN109212172A - Reclaimed asphalt mixture aged asphalt extraction and analysis instrument and test method - Google Patents
Reclaimed asphalt mixture aged asphalt extraction and analysis instrument and test method Download PDFInfo
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- CN109212172A CN109212172A CN201710352325.XA CN201710352325A CN109212172A CN 109212172 A CN109212172 A CN 109212172A CN 201710352325 A CN201710352325 A CN 201710352325A CN 109212172 A CN109212172 A CN 109212172A
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- trichloro ethylene
- heating
- motor
- concentrator bowl
- extraction
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
Abstract
The invention discloses a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument, including vibrating screen, vibrating screen is driven with the first motor for driving it to vibrate up and down and the second motor drive of its side-to-side vibrations is driven to connect, trichloro ethylene nozzle is provided at the top of vibrating screen, the bottom of vibrating screen is connect by mixing liquid conveyance conduit with concentrator bowl, concentrator bowl is connect with third motor drive, refrigeration system is provided on the outside of concentrator bowl, the top of concentrator bowl is connect by diluent pipes road with heating distillation case, heating rod and stirring blade are internally provided in heating distillation case, the top of heating distillation case is connected to by steam conveying pipe with the entrance of condenser, trichloro ethylene storage bin is arranged in the outlet of condenser, trichloro ethylene storage bin is connect by trichloro ethylene conveyance conduit with trichloro ethylene nozzle, in trichloro ethylene delivery pipe Delivery pump is provided on road.The present invention can accurately provide the basic data of aged asphalt, and rationally, world lead level is fully achieved in design.
Description
Technical field
The present invention relates to the waste and old drips that Recycling Old Asphalt Mixture is recycled using field more particularly to a kind of road-surface milling
The extraction device and method of aged asphalt in green mixture, do reclaimed asphalt mixture match ratio for unit of designing and constructing
It uses.
Background technique
The highway that China builds subsequently enters the overhaul maintenance phase, and the waste asphalt concrete generated every year is up to thousands of
Ten thousand tons, these discarded asphalt regeneratives are utilized, the huge energy, environment, social and economic benefits will be generated.Due to
Applied of Asphalt Pavement Recycle Technique introduced for more than ten years by foreign countries, and there are also what is do not solved very well much to ask for Regenerative Technique of Asphalt Mixture at present
Topic, one of them is exactly that bitumen recovery process has obvious deficiency, and national regulation required standard is lower, and the testing equipment used is also
The old-fashioned machine of the eighties is stayed in, mainly miberal powder can not completely remove, and judge whether miberal powder completely removes not no standard
Detection method.
In existing old asphalt pavement regeneration Technology design, need to have carried out the aged asphalt, rubble, miberal powder of old pavement
Fully separating, isolated purpose is the mechanical index of determining Bituminous concrete surface, and based on this index, addition regenerative agent is restored,
Reach the standard of new pitch.But the test (centrifugal separation) of asphalt from asphalt mixture content is due to centrifugal force in the prior art
Low, not clear time and specific requirement cannot be thoroughly clean by separated from bitumen, and superfine miberal powder is still contained after centrifugation.It is doing
Also protobitumen index Test when, these mineral fines directly affect the accuracy of initial data, cause addition regenerant consumption not
Accurately；It is especially especially prominent under bituminous pavement aging serious situation.The solution of use is that comparison or data are lacked
Revised law is measured, result is will lead in this way and certain deviation occurs.
Summary of the invention
Based on above-mentioned technical problem, the present invention provides a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument and test
Method.
The adopted technical solution is that:
A kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument, including vibrating screen, vibrating screen are mounted on aluminium alloy vibration
In moving frame, aluminium alloy vibrating grid and drive its vibrate up and down first motor be sequentially connected, aluminium alloy vibrating grid also with drive its
Second motor drive of side-to-side vibrations connects, and trichloro ethylene nozzle is provided at the top of vibrating screen, and the bottom of vibrating screen passes through mixed
It closes liquid conducting pipes to connect with concentrator bowl, concentrator bowl is connect with third motor drive, and refrigeration is provided on the outside of concentrator bowl
The top of system, concentrator bowl is connect by diluent pipes road with heating distillation case, in being internally provided with for heating distillation case
The top of heating rod and stirring blade, heating distillation case is connected to by steam conveying pipe with the entrance of condenser, condenser
Outlet setting trichloro ethylene storage bin, trichloro ethylene storage bin are connect by trichloro ethylene conveyance conduit with trichloro ethylene nozzle,
Delivery pump is provided on trichloro ethylene conveyance conduit.
Preferably, the first motor and the second motor are frequency control motor, and the transmission shaft of first motor passes through the
One cam is connect with aluminium alloy vibrating grid, and the first cam is connected on the transmission shaft of first motor, is set on aluminium alloy vibrating grid
It is equipped with the first spring bearing matched with the first cam, the first cam and the first spring bearing are located at the same horizontal position；The
The transmission shaft of two motors is connect by the second cam with aluminium alloy vibrating grid, and the second cam is connected to the transmission shaft of the second motor
On, the second spring bearing matched with the second cam is provided on aluminium alloy vibrating grid, the second spring bearing is located at second
The top of cam.
Preferably, the vibrating screen includes sieve nest, and upper cover, the trichloro ethylene nozzle setting are provided at the top of sieve nest
On upper lid, the inside of sieve nest be disposed with from top to bottom sieve diameter be 4.75mm, 2.36mm, 1.18mm, 0.6mm,
The square mesh screen of 0.3mm, 0.15mm and 0.075mm, the outer diameter of sieve nest are 250mm.
Preferably, the upper cover is connect with the pneumatic cylinder for controlling its switch.
Preferably, neighbouring side's mesh screen junction is provided with O-ring seal.
Preferably, the inner wall of the concentrator bowl is placed with brown paper.
Preferably, the condenser is internally provided with condenser pipe, is connected with cooling circulating water inside condenser pipe.
A kind of reclaimed asphalt mixture aged asphalt extraction and analysis test method, comprising the following steps:
A sample prepares
A1 by aged asphalt mixed material heating to be extracted to soft, mix and stir it is even after with quartering be divided into four parts, take
A copy of it is as sample；
A2, which materialses, to be put into baking oven and is heated to 100~150 DEG C, and heating time is that 0.5h~1h adds until mixture is loose
Heat and soaking time are no more than 4h；
A3, which is weighed, to be placed in 100~120 DEG C of baking ovens after the mixture that 3000g~5000g is heated through step a2 is mixed thoroughly
Etc. to be tested；
B extraction test
B1 takes out centrifugal barrel, is bonded brown paper with centrifugal barrel inner wall coarse inward-facing be placed in centrifugal barrel of brown paper,
After weighing centrifugal barrel and brown paper gross mass, centrifugal barrel is playbacked and is placed；
B2 takes out vibrating screen, and weighed mixture is even added in the side's 4.75mm mesh screen, vibrating screen is fixed on
On aluminium alloy vibrating grid, covers the upper cover equipped with trichloro ethylene nozzle and tighten knob fixed cover；
After b3 checks vibrating screen and upper cover fixing situation no problem, extraction times are set as 20min~30min, presses and opens
Dynamic button, at this time concentrator bowl starting start to rotate, and miberal powder centrifugation is adsorbed on brown paper, and pitch and trichloro ethylene mixed liquor
It is then entered above centrifugation barrel in heating distillation case, it is strong by first motor and the vibration of the second motor adjusting vibrating screen
Degree, the intensity of vibration should ensure that the mineral aggregate after being rinsed only by trichloro ethylene can be realized by the square mesh screen of each partial size and sieves；
It takes out vibrating screen to brush out the mineral aggregate in square mesh screen more than 4.75mm partial size with hairbrush, is respectively put into square plate and is built in 105 DEG C
Baking oven drying, drying time 0.5h~1h, in case building stones more than hand sieving 4.75mm, 4.75mm material below are directly weighed
It obtains building stones weight, takes out concentrator bowl after centrifugation, centrifugal barrel is placed in 105 DEG C of drying 0.5h~1h, by the mine after drying
Material and concentrator bowl place room temperature constant weight；
B4 opens cooling circulating water, presses heating distillation case heater switch, heater box distillation separation pitch and trichloro ethylene
Mixed liquor, lower trichloro ethylene boiling point is 87 DEG C, its trichloroethylene steam meets condenser pipe liquefaction and flows into trichloro ethylene storage after boiling
It deposits in case, the mixed liquor of liquid asphalt and a small amount of trichloro ethylene is finally left in heating distillation case；
When pitch and a small amount of trichloro ethylene mixeding liquid temperature are down to room temperature in b5 thermal distillation case to be added, connect with clean container
Out, in case Abson method or the purification test of rotary evaporation pitch use.
In above-mentioned steps: the concentrator bowl revolving speed is 15000 revs/min, centrifugal force 35000G.
In above-mentioned steps: being provided with liquid level detection device in heating distillation case, mixed to pitch with a small amount of trichloro ethylene
When liquid liquid level is lower than heating distillation case heating liquid level, heating distillation case is automatically stopped heating distillation work.
The method have the benefit that:
Ductility is tested after analyzer of the present invention extracting, and miberal powder extracting is clean in aged asphalt, existing from the point of view of test result
The result original aged asphalt that row test apparatus is made accounts for the 0.767% of asphalt quality, and ash content of the invention is 0.02%, close to
0, effect is fairly obvious, can accurately provide the basic data of aged asphalt.And once it can go out to tie using analyzer of the present invention
Fruit no longer needs to be sieved, and data are error free.Analyzer Optimal Structure Designing of the present invention is reasonable, and water advanced in the world is fully achieved
It is flat.
Detailed description of the invention
The invention will be further described with specific embodiment with reference to the accompanying drawing:
Fig. 1 is the external structure schematic diagram of analyzer of the present invention；
Fig. 2 is the principle schematic diagram of analyzer of the present invention；
Fig. 3 is right half part view of the invention, mainly shows the structures such as vibrating screen；
Fig. 4 is the top view of the position of first motor；
Fig. 5 is the front view of the position of the second motor.
Specific embodiment
In conjunction with attached drawing, a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument, including vibrating screen 1, vibrating screen 1 are installed
On aluminium alloy vibrating grid 2, aluminium alloy vibrating grid 2 and the first motor 3 for driving it to vibrate up and down are sequentially connected, aluminium alloy vibration
Frame 2 is also sequentially connected with the second motor 4 of its side-to-side vibrations is driven.The top of vibrating screen 1 is provided with trichloro ethylene nozzle 5, vibration
The bottom of dynamic sieve 1 is connect by mixing liquid conveyance conduit with concentrator bowl 6, and the inner wall of concentrator bowl 6 is placed with brown paper, concentrator bowl
6 are arranged in the inside of centrifuge, and concentrator bowl 6 and third motor 7 are sequentially connected.Refrigeration system is provided on the outside of centrifuge,
Refrigeration system includes refrigeration machine 8 and refrigeration compressor 9.The top of concentrator bowl 6 passes through diluent pipes road and heating distillation case
10 connections are internally provided with heating rod 11 and stirring blade 12, stirring blade 12 and mix motor 13 in heating distillation case 10
Rotating shaft transmission connection.The top of heating distillation case 10 is connected to by steam conveying pipe with the entrance of condenser 14, condenser
Trichloro ethylene storage bin 15 is arranged in 14 outlet.Condenser 14 is internally provided with condenser pipe 23, is connected with inside condenser pipe 23 cold
But recirculated water.Trichloro ethylene storage bin 15 is connect by trichloro ethylene conveyance conduit 16 with trichloro ethylene nozzle 5, in trichloro ethylene
Delivery pump 17 is provided on conveyance conduit 16.
As to further design of the invention, the first motor 3 and the second motor 4 are frequency control motor, the
The transmission shaft of one motor 3 is connect by the first cam 18 with aluminium alloy vibrating grid 2, and the first cam 18 is connected to the biography of first motor
On moving axis, be provided with the first spring bearing 19 matched with the first cam 18 on aluminium alloy vibrating grid 2, the first cam 18 with
First spring bearing 19 is located at the same horizontal position.The transmission shaft of second motor 4 passes through the second cam 20 and aluminium alloy vibrating grid
2 connections, the second cam 20 are connected on the transmission shaft of the second motor, are provided on aluminium alloy vibrating grid 2 and the second cam phase
Second spring bearing 21 of cooperation, the second spring bearing 21 are located at the top of the second cam 20.
Further, the vibrating screen 1 includes sieve nest, and upper cover, the trichloro ethylene spray are provided at the top of sieve nest
Mouth sets 5 and sets on upper lid, the inside of sieve nest be disposed with from top to bottom sieve diameter be 4.75mm, 2.36mm,
The square mesh screen of 1.18mm, 0.6mm, 0.3mm, 0.15mm and 0.075mm, the outer diameter of sieve nest are 250mm.It is placed on square mesh screen
There is waste asphalt mixture.The upper cover is also connect with the pneumatic cylinder 22 for controlling its switch, the gas source of pneumatic cylinder 22
Connect air pump 25.Neighbouring side's mesh screen junction is provided with O-ring seal.
The working principle of the invention approximately as:
Analyzer of the present invention is made of the two body parts AB, and two body parts cannot work independently, it is necessary to each portion
Distribution is closed and could be worked, and if the trichloro ethylene of A machine is being provided by B machine, what it is with vibrating screen is A machine, Fig. 1 right half part, band
There is condenser and control computer 24 is B machine, major function is cooling recycling trichloro ethylene.
The top of A machine is vibrating screen, and vibrating screen can up and down and front and back is vibrated, and is driven by two groups of variable ratio frequency changer speed regulating motors
The circular cam of dynamic motor two sides is vibrated, and vibration frequency is adjustable by motor inverter, can guarantee that vibrating screen can be in this way
Abundant Omnibearing vibrating.Upper cover is equipped with three filter ethylene spouts while work, sprays trichloro ethylene to reworked material, sieve is selected
Model 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm sieve diameter square mesh screen, sieve
The outer diameter of son is 250mm.This screen size why is selected, be due to national standard sieve diameter is exactly this sequence,
4.75mm, above there are also 9.5mm, 13.2mm, 16mm, 19mm, 26.5mm Commonly Used Size, by vibration test material 4.75mm with
Under mineral aggregates at different levels can all stay in respective sieve, only need to weigh the weight of sieve before test, weigh one after test again
The building stones of lower sieve and the inside, the latter subtract the former, so that it may obtain the quality of building stones in this sieve pore, remaining is successively.And
After traditional extracting is eccentric cleaning building stones, after building stones are dried with state specified standards sieve (aperture of sieve with above
Be identical) sieved again, understand some loss when cleaning in this way, keep data inaccurate, while country
Also regulation need to do three parallel tests and is averaged specification, cause to test troublesome trouble in this way, use the present invention is primary to go out to tie
Fruit no longer needs to be sieved, and data are error free.Because machine is while trichloro ethylene rinses separation old asphalt mixture, vibration
The problem of dynamic sieve also carries out screening at different levels simultaneously, and there is no losses；The mineral aggregate of 4.75mm or more also needs to propose to carry out manual sieve
Point, because this part material diameter is big, visually readily identify, loss problem is not present, if by national standard 0.075--
The sieve of 26.5mm, which is all loaded onto, shares 12 sieves, the excessively high bad operation of machine, while vibrating effect is also without the present invention in this way with sieve
It is good.
Vibrating screen is placed on aluminium alloy vibrating grid, and the upper cover of sieve is equipped with three filter ethylene nozzles, is connected to B by pipe
Machine, the storage bin of the interior installation trichloro ethylene of B machine provide nozzle power through electrodynamic pump.Upper cover is aluminum alloy materials, rear portion installation
Pneumatic cylinder, for controlling the switch of upper cover, (this namely uppermost sieve) meeting in 4.75mm sieve when due to work
Placing and be heated to 100 DEG C using baking oven -- 120 DEG C of extracting waste asphalt mixture 3000g--5000g has constant weight, this
A cylinder can be persistently to the power of one, sieve pressing after closing, and when guaranteeing shaking, sieve will not be loosened, and each sieve is vertically connected with
There is a zero type sealing ring at place, prevents solution when vibration from revealing.
Waste asphalt mixture passes through the flushing of trichloro ethylene, and aged asphalt is diluted, and forms trichloro ethylene, pitch, mine
The mixed solution of powder, mixing liquid enter in high speed centrifugation cylinder through hose, and cylinder inner wall puts an ox-hide thin paper, in high speed centrifugation mistake
The dilution of Cheng Zhong, pitch and trichloro ethylene rises along concentrator bowl inner wall to flow out, the dilution for pitch and trichloro ethylene
Inside contain miberal powder, miberal powder is attached on the thin brown paper of an inner wall with the centrifugal force of high speed, (brown paper is added to be mainly to be
The miberal powder of cylinder inner wall is cleared up well after test, if paper is not added since centrifugal force is bigger, the work for clearing up miberal powder will be very difficult)
Supercentrifuge rotating speed is 15000 revs/min, centrifugal force 35000G, only under this revolution and this centrifugal force, centrifugation
The result is that best.Centrifuge outer wall is equipped with refrigeration system, since high speed centrifugation power is larger, during high speed rotation
Liquid is compressed, and temperature rises, since pitch type high temp is easy aging, it is necessary to Physical temperature-lowering is carried out, after just can guarantee extracting
Aged asphalt reset condition, in case testing inspection uses.
The arrow of Fig. 2 is the overall process that trichloro ethylene is run in this analyzer, by high speed centrifugation miberal powder and pitch
And the dilution of trichloro ethylene is completely separated, dilution is distilled along the heating that the aluminium alloy pipe on concentrator bowl top enters B machine
The device for having heating rod in case is distilled in case, heating, and stirring motor and stirring blade are installed in top, carries out during heating abundant
Agitating and heating prevents hot-spot pitch from generating aging.The dilution of pitch and trichloro ethylene is heated, heating temperature is
80 DEG C -- 120 DEG C, trichloro ethylene generates steam and condenses by condenser after heating, has water inlet and water outlet above condenser,
Cooling water is tap water, 20 DEG C of room temperature or so, this water temperature is kept generally to connect the common constant temperature waters in a laboratory.It is cold
It coagulates and enters trichloro ethylene storage bin after becoming liquid, cabinet is stainless steel making, and outside is equipped with liquid level and shows standard and valve.Storage
It deposits in case electric pump is transported to vibrating screen above A machine, the injection for trichloro ethylene nozzle uses.
The control computer of master control power supply and full machine is placed on B machine, is operated more convenient.
The method tested using above-mentioned reclaimed asphalt mixture aged asphalt extraction and analysis instrument, comprising the following steps:
One, sample prepares
1, by aged asphalt mixed material heating to be extracted to soft, mix and stir it is even after with quartering be divided into four parts, take
A copy of it is as sample；
2, the uniform asphalt of sampling is put into baking oven and is heated to 100~150 DEG C, and heating time is 0.5h~1h, directly
Loose to mixture, heating and soaking time must not exceed 4h, and must not heat twice to avoid making ageing of asphalt；
3, weigh placed after the mixture that 3000g~5000g is heated is mixed thoroughly in 100~120 DEG C of baking ovens etc. it is to be tested, such as
The excessively high sealing rubber ring aged deterioration that will lead on bushing screen of fruit temperature.
Two, extraction test
1, it turns on the power switch, checks whether cooling circulating water, work in every indicator light are working properly；
2, centrifuge cup is opened, concentrator bowl is taken out, coarse inward-facing be placed in concentrator bowl of thin brown paper is made into thin brown paper
It is bonded with concentrator bowl inner wall, after weighing concentrator bowl and thin brown paper gross mass, concentrator bowl is put into centrifuge (can be in concentrator bowl
Outer wall wipes a small amount of vaseline lubrication), and centrifuge cup fixation is locked；
3, take out bushing screen, bushing screen sieve pore specification be from top to bottom respectively as follows: 4.75mm, 2.36mm, 1.18mm, 0.6mm,
Weighed mixture is even added in 4.75mm square hole screen, bushing screen by the square hole screen of 0.3mm, 0.15mm, 0.075mm
It is fixed in screen frame (unit), covers the upper cover equipped with trichloro ethylene nozzle and tightens knob fixed cover；
4, after checking bushing screen and centrifuge upper cover fixing situation no problem, extraction times are set are as follows: 20min~30min is pressed
Lower start button, supercentrifuge starting at this time starts rotation, and (the purpose of work of centrifuge is the pitch that will be rinsed, trichlorine
Ethylene is separated less than the mixed liquor of 0.075mm partial size miberal powder, and miberal powder centrifugation is adsorbed on thin brown paper, and pitch with
Trichloro ethylene mixed liquor is then entered above centrifugation barrel in heating distillation case), adjust bushing screen oscillation intensity, the intensity of vibration
It should ensure that the mineral aggregate after being rinsed only by trichloro ethylene can be realized by the bushing screen of each partial size to sieve, take out bushing screen for 4.75mm
The mineral aggregate in bushing screen more than partial size is brushed out with hairbrush, is respectively put into square plate and is built in 105 DEG C of baking oven drying, drying time 0.5h
~1h, in case the building stones of 4.75 or more hand sieving, 4.75 material below, which are directly weighed, obtains building stones weight.High speed centrifugation terminates
After take out concentrator bowl, by concentrator bowl taking-up be placed in 105 DEG C of drying 0.5h~1h, by after drying mineral aggregate and concentrator bowl placement room temperature
Constant weight.
5, cooling circulating water is opened, heating distillation case heater switch is pressed, heater selects automatically according to liquid level in heater box
Select heating power, heater box distillation separation pitch and trichloro ethylene mixed liquor, lower trichloro ethylene boiling point is 87 DEG C, after boiling its
Trichloroethylene steam is met the liquefaction of circulating water condensing pipe and is flowed into trichloro ethylene storage bin, finally leaves liquid drip in heating distillation case
The mixed liquor of green and a small amount of trichloro ethylene heats liquid level lower than heating distillation case to pitch and a small amount of trichloro ethylene mixed liquor liquid level
When, heating distillation case will be automatically stopped heating distillation work, close heating distillation case heater switch, close after 10min~15min
Cooling cycle taps.
6, it when pitch and a small amount of trichloro ethylene mixeding liquid temperature are down to room temperature in thermal distillation case to be added, is connect with clean container
Pitch and a small amount of trichloro ethylene mixed liquor in heating distillation case out, in case Abson method or the purification test of rotary evaporation pitch are standby
With.
Certainly, described above is only that presently preferred embodiments of the present invention is answered the present invention is not limited to enumerate above-described embodiment
When explanation, anyone skilled in the art is all equivalent substitutes for being made, bright under the introduction of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (10)
1. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument, it is characterised in that: including vibrating screen, vibrating screen is mounted on
On aluminium alloy vibrating grid, aluminium alloy vibrating grid and the first motor for driving it to vibrate up and down are sequentially connected, and aluminium alloy vibrating grid is also
It is connect with the second motor drive of its side-to-side vibrations is driven, trichloro ethylene nozzle, the bottom of vibrating screen is provided at the top of vibrating screen
Portion is connect by mixing liquid conveyance conduit with concentrator bowl, and concentrator bowl is connect with third motor drive, is set on the outside of concentrator bowl
It is equipped with refrigeration system, the top of concentrator bowl is connect by diluent pipes road with heating distillation case, in heating distillation case
Portion is provided with heating rod and stirring blade, and the top of heating distillation case is connected to by steam conveying pipe with the entrance of condenser,
Trichloro ethylene storage bin is arranged in the outlet of condenser, and trichloro ethylene storage bin is sprayed by trichloro ethylene conveyance conduit and trichloro ethylene
Mouth connection, is provided with delivery pump on trichloro ethylene conveyance conduit.
2. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument according to claim 1, it is characterised in that: described
First motor and the second motor are frequency control motor, and the transmission shaft of first motor passes through the first cam and aluminium alloy vibrating grid
Connection, the first cam are connected on the transmission shaft of first motor, are provided on aluminium alloy vibrating grid and match with the first cam
The first spring bearing, the first cam and the first spring bearing are located at the same horizontal position；The transmission shaft of second motor passes through the
Two cams are connect with aluminium alloy vibrating grid, and the second cam is connected on the transmission shaft of the second motor, are set on aluminium alloy vibrating grid
It is equipped with the second spring bearing matched with the second cam, the second spring bearing is located at the top of the second cam.
3. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument according to claim 1, it is characterised in that: described
Vibrating screen includes sieve nest, upper cover is provided at the top of sieve nest, the trichloro ethylene nozzle is arranged on upper lid, in sieve nest
Portion be disposed with from top to bottom sieve diameter be 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm and
The square mesh screen of 0.075mm, the outer diameter of sieve nest are 250mm.
4. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument according to claim 3, it is characterised in that: described
Upper cover is connect with the pneumatic cylinder for controlling its switch.
5. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument according to claim 1, it is characterised in that: up and down
Adjacent side's mesh screen junction is provided with O-ring seal.
6. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument according to claim 1, it is characterised in that: described
The inner wall of concentrator bowl is placed with brown paper.
7. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis instrument according to claim 1, it is characterised in that: described
Condenser is internally provided with condenser pipe, is connected with cooling circulating water inside condenser pipe.
8. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis test method, it is characterised in that steps are as follows:
A sample prepares
A1 by aged asphalt mixed material heating to be extracted to soft, mix and stir it is even after with quartering be divided into four parts, take wherein
Portion is used as sample；
A2, which materialses, to be put into baking oven and is heated to 100~150 DEG C, and heating time is 0.5h~1h, until mixture is loose, heating and
Soaking time is no more than 4h；
A3 is weighed to be placed in after the mixture that 3000g~5000g is heated through step a2 is mixed thoroughly in 100~120 DEG C of baking ovens and be waited
Test；B extraction test
B1 takes out centrifugal barrel, is bonded brown paper with centrifugal barrel inner wall coarse inward-facing be placed in centrifugal barrel of brown paper, weighs
After centrifugal barrel and brown paper gross mass, centrifugal barrel is playbacked and is placed；
B2 takes out vibrating screen, and weighed mixture is even added in the side's 4.75mm mesh screen, and vibrating screen is fixed on aluminium and is closed
On golden vibrating grid, covers the upper cover equipped with trichloro ethylene nozzle and tighten knob fixed cover；
After b3 checks vibrating screen and upper cover fixing situation no problem, set extraction times as 20min~30min, press start by
Button, at this time concentrator bowl starting start to rotate, and miberal powder centrifugation is adsorbed on brown paper, and pitch and trichloro ethylene mixed liquor then from
It is entered above centrifugation barrel in heating distillation case, the oscillation intensity of vibrating screen, vibration is adjusted by first motor and the second motor
Dynamic intensity should ensure that the mineral aggregate after being rinsed only by trichloro ethylene can be realized by the square mesh screen of each partial size and sieve；Take out vibration
Dynamic sieve brushes out the mineral aggregate in square mesh screen more than 4.75mm partial size with hairbrush, is respectively put into square plate and is built in 105 DEG C of baking ovens bakings
Dry, drying time 0.5h~1h, in case building stones more than hand sieving 4.75mm, 4.75mm material below, which is directly weighed, obtains stone
Expect weight, take out concentrator bowl after centrifugation, centrifugal barrel be placed in 105 DEG C of drying 0.5h~1h, by after drying mineral aggregate and from
Heart cylinder places room temperature constant weight；
B4 opens cooling circulating water, presses heating distillation case heater switch, and heater box distillation separation pitch is mixed with trichloro ethylene
Liquid, lower trichloro ethylene boiling point is 87 DEG C, its trichloroethylene steam meets condenser pipe liquefaction and flows into trichloro ethylene storage bin after boiling
It is interior, the mixed liquor of liquid asphalt and a small amount of trichloro ethylene is finally left in heating distillation case；
When pitch and a small amount of trichloro ethylene mixeding liquid temperature are down to room temperature in b5 thermal distillation case to be added, picked out with clean container,
In case Abson method or the purification test of rotary evaporation pitch use.
9. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis test method according to claim 8, feature exist
In: the concentrator bowl revolving speed is 15000 revs/min, centrifugal force 35000G.
10. a kind of reclaimed asphalt mixture aged asphalt extraction and analysis test method according to claim 8, feature exist
In: it is distilled in case in heating and is provided with liquid level detection device, steamed to pitch and a small amount of trichloro ethylene mixed liquor liquid level lower than heating
When evaporating case heating liquid level, heating distillation case is automatically stopped heating distillation work.
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