CN202390743U - Device for producing modified asphalt - Google Patents
Device for producing modified asphalt Download PDFInfo
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- CN202390743U CN202390743U CN201120407636XU CN201120407636U CN202390743U CN 202390743 U CN202390743 U CN 202390743U CN 201120407636X U CN201120407636X U CN 201120407636XU CN 201120407636 U CN201120407636 U CN 201120407636U CN 202390743 U CN202390743 U CN 202390743U
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Abstract
The utility model discloses a device for producing modified asphalt. The device comprises a mixing device provided with a raw material inlet; the mixing device is communicated with a heat insulation tower; the heat insulation tower is provided with a mixed material inlet and a discharge hole; the mixed material inlet is arranged at the lower part of the heat insulation tower; the discharge hole is arranged at the upper part of the heat insulation tower; base asphalt is fully mixed with a modifying agent, and then the obtained mixture is transmitted into the heat insulation tower to be synthesized; fluid flows through a gap of a tube type heat exchanger from bottom to top, so that large-area heat exchange can be carried out; and the mixed material performs relative movement with the tube type heat exchanger along with the rise of liquid level, so that the fluidity of the mixed material is guaranteed, and the mixed material can be more evenly and fully heated.
Description
Technical field
The utility model relates to a kind of mixing heater, and especially a kind of is the device of raw material production modified bitumen with matrix pitch, modifier.
Background technology
The sediment general designation oil matrix pitch or the matrix pitch that in oil refining process, produce, matrix pitch is a kind of cementing agent that is used for the flexible pavement construction, has good caking property, impermeability, insulating properties and chemical stability, is the road construction material of using always.Because the temperature sensitivity of matrix pitch, at high temperature its rigidity and intensity reduce, and the road surface is softening; Low temperature then is easy to generate pavement cracking phenomenons such as shrinkage crack; Need in matrix pitch, add modifier, it is carried out modification, to improve its mechanical performance under high and low temperature.Mixture general designation modified bitumen behind matrix pitch admixture modifier.The modifier that matrix pitch is carried out modification is the thermoplastic elastomer polymer normally, like the random or block copolymer of styrene and conjugated diene, polyisoprene, butyl rubber etc.
Two key parameters are arranged in the modified bitumen manufacturing process: the one, temperature, the 2nd, duration of mixing.The production temperature is too high, duration of mixing is long, the modified bitumen easy ageing; Temperature is on the low side, duration of mixing is too short, and pitch can not fully soak into to modifier, can't give full play to the modifying function of modifier to pitch.
The device of producing modified bitumen in the prior art generally includes mixing tank and melts bloated retort; Mixing tank is in order to press than throwing in modifier and matrix pitch; Melt in the retort that expands and be provided with agitator and heater, in order to the modified bitumen in the reaction is constantly stirred and heat.When utilizing the said equipment to prepare modified bitumen, at first matrix pitch, modifier etc. is joined in the mixing tank in proportion, compound is sent into to melt in the retort that expands directly or through shear then and melt the reaction of expanding.There is following weak point in the device that this kind produced modified bitumen:
1, because the local flow property that the bloated retort of melting of agitator can only guarantee compound is set in the jar; Modifier is because proportion is less; Float on the top of melting swell easily, most of compound is mobile relatively poor in jar, and the inequality of being heated when expanding is melted in compound heating in melting the retort that expands; And in the mix process; Modifier such as rubber powder produce melting when expanding reaction in pitch and can discharge great amount of heat, are difficult to control, cause existing partially modified pitch that aging, partially modified pitch takes place and fully do not melt phenomenons such as bloated, modifier caking yet;
Therefore along with the increase of modifier volumes such as rubber powder, the viscosity of modified bitumen can increase, and it is more serious that above-mentioned modified bitumen is partly aging, part is not fully melted bloated phenomenon; The viscosity of modified bitumen increases simultaneously, flowability reduces, the workability of compound construction reduces; Therefore; In the existing modified bitumen quality of modifier such as rubber powder be strict controlled in the mixture gross mass 20% in, the pavement performance of modified asphalt mixture also is restricted because of the restriction of modifier volume accordingly; On the other hand, because the restriction of modifier volume, asphalt content is relatively large, causes the cost of rubber-asphalt mixture higher, and is very uneconomical.
2, since melt modifier such as to get into air in the retort that expands less, the rubber powder that in melting the retort that expands, takes place and melting of pitch expand reaction temperature with, need 2-4 hour ability to accomplish, and react and can only carry out on a still one still ground, can not realize continuous production.
3, little owing to melting the retort heat exchange area that expands, reaction is gentle, need to satisfy initial reaction stage institute calorific requirement, cause wearing out of matrix pitch easily but heat matrix pitch in advance through heating the method deposit heat of matrix pitch in advance; The matrix pitch of preheating makes and partly melts bloatedly at batch mixing process mesostroma pitch and modifier, and material viscosity is increased, and exists and mixes uneven phenomenon.
4, in this device waste gas recovering device is not set, hot waste water and poisonous fume that the batch mixing process produces all are disposed in the atmosphere, are unfavorable for environmental protection, and personnel's health around the harm equipment.
Application number is: 200820109736.2, the applying date is that the Chinese utility model patent " rubber modified asphalt device " on August 7th, 2008 discloses a kind of rubber modified asphalt device; Comprise rubber powder elevator, horizontal stirring tank, Automatic Cycle shear pump, horizontal pitch colloid mill, delivery pump, control assembly, conduction oil oil transfer pump; Horizontal stirring tank is provided with the rubber powder elevator; The Automatic Cycle shear pump is connected with horizontal pitch colloid mill; Sidepiece at horizontal stirring tank is respectively arranged with delivery pump, conduction oil oil transfer pump, in the bottom of this device control assembly is housed also.After material is injected into inside from the horizontal stirring tank top; Melt the reaction of expanding, owing to be provided with slurry mixer and rubber powder agitator in the jar, mixing of materials is more even; Melt the reacted material that expands and carry out refinement through Automatic Cycle shear pump and horizontal pitch colloid mill successively; Make the material of output finer and closely woven, end product quality is higher, but it still has following weak point:
1, is positioned near the material of horizontal stirring tank edge and inwall, is difficult to stir; And blade agitator and rubber powder agitator etc. need could fully mix material under high speed rotating usually, yet because modified bitumen viscosity is big, mobile relatively poor, makes high speed rotating stir and be difficult to realize; And melt in the course of reaction that expands and continue heat release; Increase along with temperature in the jar; Can further increase the viscosity of modified bitumen; Thereby deepen the influence to agitator speed, finally make material be difficult to mixing, still inevitable part rubber asphalt takes place to wear out, the part rubber asphalt does not fully melt bloated phenomenon yet.In the modified bitumen of producing, modifier is many to be present in the modified bitumen with the physics ortho states, make the coarse hardening flowability of this type modified bitumen outward appearance bad, be prone to segregation, mix and stir uses " bitumen aggregate ratio " height, make user's cost increase of building the road, uneconomical.
Especially with the raising of modifier volume; Modified bitumen viscosity also will improve thereupon; In utilizing this device production modified bitumen process; The volume of modifier will receive strict restriction, make this device difficult be applicable to produce present development prospect good, with the regenerated resources scrap tire powder, the phenolic resin powder that reclaims in the electronic waste etc. is the high adulteration modified PRODUCTION OF PITCH of modifier.
2, this device does not still fundamentally solve the problem that heat exchange area is little, the reaction time is long.
3, this device still is not provided with waste gas recovering device, and the waste gas that melts the reaction generation of expanding is in line, atmosphere pollution, and gaseous state rubber asphalt is wherein fully recycled.
The utility model content
The technical problem that the utility model will solve is to overcome the above-mentioned deficiency of prior art, a kind of batch mixing is provided, is heated evenly, and heat exchange area is big, and the finished product asphalt quality is better produced the device of modified bitumen and utilized this device to produce the method for modified bitumen.
The further purpose of the utility model provides a kind of can serialization production the device of modified bitumen and utilize this device to produce the method for modified bitumen.
The 3rd purpose of the utility model provides a kind of device of the production modified bitumen that can handle waste gas, reduce pollute and utilizes the method for this device production modified bitumen.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of device of producing modified bitumen; Comprise the mixing device that is provided with material inlet; Said mixing device comprises contactor pump, and said mixing device is communicated with the insulation tower that is provided with heat-exchanger rig, and said insulation tower is provided with compound import and discharging opening; Said compound import is arranged on the bottom of insulation tower, and said discharging opening is arranged on the top of insulation tower.
Wherein, the insulation tower is tower, the tank body that is provided with heat-exchanger rig, can ccontaining compound within it portion carry out fluid interchange, insulation.
In the device of above-mentioned production modified bitumen; The mixing device that is provided with contactor pump makes therein the matrix pitch behind the abundant stirring and evenly mixing input in the insulation tower from the insulation tower bottom with modifier to melt the reaction of expanding, and can avoid from the insulation top of tower phenomenon that the modifier that caused lumps above the liquid level of pitch in being incubated tower easily that feeds intake.
Be provided with the insulation tower of heat-exchanger rig; Make compound inject the back and carry out interchange of heat and reaction in inside by the insulation tower bottom; Even the course of reaction medium viscosity that expands increases compound, the mobile reduction melting; Also can promote compound integral body and move to insulation tower top, the mode through whole lifting makes most of compound circulation and fully heat exchange.
Simultaneously, be arranged at the top, avoided that feeding intake when feeding intake from top to bottom mostly occurs and overflow or situation that the mateiral pump that is positioned at the bottom when very few of feeding intake is found time material because the charging aperture of insulation tower is arranged at below, the discharging opening of insulation tower.
In the device of above-mentioned production modified bitumen; The contactor pump of said mixing device is the contactor pump that rotating shaft is provided with moving-coil; Said moving-coil is with the rotating shaft coaxial rotation of contactor pump; The radial outside of said moving-coil is provided with decides circle, in said fixed circle is coated on moving-coil, is provided with the gap between said moving-coil and the fixed circle; The material inlet of mixing device is communicated with the circle of deciding of contactor pump, and the circle of deciding of contactor pump is communicated with the compound import of insulation tower.Adopt said structure, contactor pump can make matrix pitch mix with modifier and shear, with batch mixing, cut the material process merging; When shearing, get final product batch mixing, simultaneously, because moving-coil rotates at a high speed; Central area at mixing device forms negative-pressure vacuum, can carry out auto-pumping to material, realizes replenishing automatically of material; Throw away under the centrifugal action of material after batch mixing is sheared, when taking out material automatically, realized pumping automatically to the insulation tower at moving-coil.
Simultaneously; Be different from mixing arrangement of the prior art; This device sucks contactor pump through the negative pressure suction with a large amount of air, in compound, admixes the required oxygen of a large amount of reactions, realizes that liquid asphalt, solid modifier and air three fully mix; In the presence of a large amount of oxygen, make the reaction in the mixing device more violent; A large amount of reaction heat that material is emitted when reaction can be used as one of thermal source of modified bitumen mixing reaction, in the efficient that further improves reaction, can practice thrift heat energy in a large number.
Further, in order to make full use of the centrifugal action of rotating shaft and moving-coil, make matrix pitch abundant more, even with mixing of modifier, the material inlet of mixing device is preferably disposed near the rotating shaft center; Most preferred, material inlet is communicated to ring in the moving-coil.
Further, the moving-coil of mixing device is an impeller, is disposed radially gapped between said impeller and the fixed circle; Adopt impeller as moving-coil, can make mixing device have better flowability.
Further, the gap length that is disposed radially between said impeller and the fixed circle is 0.5mm～10mm, this gap avoid mixture particle excessive, react the inadequate while, guarantee that compound can have good mobility.
Further; The radial outside of deciding circle of said mixing device also can be provided with away hopper; Saidly walk to include away the hopper discharging opening on the hopper and walk the hopper charging aperture, the said hopper charging aperture of walking is communicated with fixed circle, and the said hopper discharging opening of walking is communicated with the compound import that is incubated tower.Fixed circle is outer to be provided with hopper and can to make and receive the compound that centrifugal force throws away and enter into the insulation tower evenly, densely; Most preferred, walk the hopper charging aperture and walk the radially two ends that hopper discharging opening branch is located at away hopper, can make material in walking hopper with the longest path hopper half-turn that walks around, make batch mixing more even.
Further, in the device of above-mentioned production modified bitumen, contactor pump also is provided with pump head conduction oil chuck outward, through pump head conduction oil chuck the compound of walking in the hopper is heated, and improves reaction efficiency, and can replenish the material temperature loss that produces because of the modifier heat absorption.
Preferably, said contactor pump is provided with hopper, and the bottom of said hopper is communicated with material inlet, is provided with screen cloth in the said hopper.Adopt such structure, can realize the batching of multiple modifier, and load a large amount of materials, realize Automatic Cycle through the hopper feed is disposable through hopper.Through screen cloth is set on hopper, can, screen material before getting into contactor pump, filter out the block modifier and the impurity that are difficult to batch mixing.
Most preferred, be provided with the emergency overflow hole with external communications on hopper top, adopt such structure, through the emergency overflow hole is set on hopper, can avoid having an accident because of excessively reinforced or feed back.
Further; In the device of above-mentioned production modified bitumen, between the contactor pump of mixing device and insulation tower, also be provided with bitumenpump, when bigger suction force is provided for device; Turbine in the bitumenpump has the non-return characteristic of nature; Can avoid the flow adverse current, and can open and close naturally, play the effect of " with pump for valve "; And in non-return, supercharging, have and practice thrift cost, beneficial effect that security performance is good.
In the device of above-mentioned production modified bitumen, the heat-exchanger rig of said insulation tower is a shell and tube reactor, and said shell and tube reactor is arranged at the zone between interior compound import of insulation tower and the discharging opening.When utilizing this device to produce modified bitumen, oxidation, hydrocarbonylation, rearrangement reaction take place in compound in shell and tube reactor, and the heat exchange area of shell and tube reactor is big, and compound is heated evenly; Less, the mutual promotion in material flowing time crack between shell and tube reactor simultaneously makes flowability higher, excessively is heated after the material of having avoided being positioned at the heat-transfer surface place is hoarded and wears out.
Preferably, said insulation tower comprises cylindrical shell, be arranged at the upper cover at cylindrical shell top and be arranged at the low head of cylindrical shell bottom, taper that the inner chamber of said low head is big up and small down or taper type.Adopt the up big and down small taper or the low head of inner chamber; Impurity in the mix asphalt is taken advantage of a situation deposit to the low head bottom; Simultaneously; Can the material of insulation in the tower be pressurizeed from bottom to up and carry out heat exchange in the shell and tube reactor that will pump into the top through taking out the material bitumenpump, simultaneously, increase the flowability of insulation tower materials inside through taking out the material bitumenpump.
Preferably, in the device of above-mentioned production modified bitumen, the low head bottom of said insulation tower also is communicated with takes out the material bitumenpump.Set up take out the material bitumenpump after, can be when quitting work at the insulation tower, to take out in the most insulation tower institute's heeltap blue or green through taking out the material bitumenpump, and discharge overbottom pressure; Material recoil when also the controllable flow amount is with the unexpected power outage of prevention.
Preferably; Said insulation tower skin is provided with insulation tower conduction oil chuck; Said insulation tower conduction oil chuck comprises insulation tower heat conductive oil inlet and the outlet of insulation tower conduction oil, and outlet is communicated with shell and tube reactor bottom and top respectively insulation tower heat conductive oil inlet with insulation tower conduction oil.Adopt such structure, can make the higher mixture temperature of maintenance in the mixing device,, take away the unnecessary heat of exothermic reaction through the flow of regulating conduction oil simultaneously, guarantee the reaction product quality to improve batch mixing efficient and quality.
Preferably, the outer pump head conduction oil chuck that is provided with of contactor pump comprises pump head heat conductive oil inlet and the outlet of pump head conduction oil, and said pump head heat conductive oil inlet and the outlet of pump head conduction oil are communicated with the outlet of insulation tower conduction oil, insulation tower heat conductive oil inlet respectively.Through the pump head conduction oil chuck of contactor pump is parallelly connected with the conduction oil oil circuit of shell and tube reactor, reduced conduction oil roadlock power, the heating that heats up is fast; Can realize the integral body heating of manufacturing process through a heat conducting oil boiler, simple in structure, cost is low, efficient is high.
Most preferred, the insulation tower conduction oil chuck of said insulation tower also is provided with the vacuum heat-preserving chuck outward, and said vacuum heat-preserving chuck is communicated with vacuum pump.Adopt such structure, the vacuum heat-preserving chuck is kept vacuum by vacuum system independently, in order to will be incubated tower and external insulation, the energy loss that is caused when preventing heat diffusion.
Preferably, said insulation tower top is provided with refluxing opening, and said refluxing opening is connected with the material inlet of mixing device through return line.Adopt such structure; The interior a part of high temperature modified pitch of insulation tower is back to as required carries out rerolling in the mixing device, simultaneously, the mix asphalt that synthesizes reflux in tower from temperature has higher temperature; Can carry out preheating to the material in the mixing device, improve batch mixing efficient and quality.
Further; The discharging opening top of said insulation tower also is provided with extract opening; Said extract opening is communicated with condensing apparatus, and the output of said condensing apparatus is communicated with air inlet port, the mixing device of knockout drum respectively, and the gas outlet of said knockout drum is connected with electromagnetism and burns pipe.Adopt such structure, waste gas is at first through condenser condenses, can in storing the knockout drum of liquid, purify through the bubbling method without the gas of condensation, and export to electromagnetism and burn pipe waste gas is carried out the high temperature incineration process; Condensate regularly is disposed to mixing device by the material inlet of mixing device and further utilizes; Because the reaction combustible exhaust gas can be effectively isolated in the liquid water seal, can when realize Purge gas, decompression cooling, avoid fuel gas to reflux and get in the insulation tower simultaneously.
Preferably; In the above-mentioned production modified bitumen device; The radial outside of said fixed circle also is provided with away hopper; In the method for above-mentioned production modified bitumen, stir in the step (1), shear compound after the refinement pump into decide the setting of circle radial outside walk hopper after, the compound import that gets into insulation tower bottom again.Can make and receive the compound that centrifugal force throws away and enter into the insulation tower evenly, densely.
Preferably; In the above-mentioned production modified bitumen device; The said hopper of walking also is provided with pump head conduction oil chuck outward, and in the method for above-mentioned production modified bitumen, the compound of walking in the hopper can be by this pump head conduction oil chuck heating; Improve reaction efficiency, and can replenish the material temperature loss that produces because of the modifier heat absorption.
Preferably; The insulation tower heat exchanger of above-mentioned production modified bitumen device is a tubular heat exchanger; Said tubular heat exchanger is arranged between interior compound import of insulation tower and the discharging opening, and above-mentioned utilization is produced the device of modified bitumen and produced in the synthetic method of modified bitumen, and the detailed process of step (2) is: melt to expand in the gap of the tubular heat exchanger of compound in the insulation tower and react; Pressurized promotes in tiny gap to flow to from the bottom of tubular heat exchanger the top of tubular heat exchanger; And in flow process, continuing heat exchange, the compound after reaction and the heat exchange obtains modified bitumen product from being arranged on the discharging opening output on insulation tower top.
Preferably, the insulation tower top of the device of above-mentioned production modified bitumen also is provided with refluxing opening, in the method for above-mentioned production modified bitumen, can as required the compound after the heat exchange of insulation tower be directed into and carry out rerolling in the contactor pump; Preferably, the pitch major part that will in the insulation tower, accomplish synthetic reaction is directed into import in the contactor pump through return duct, and purpose is to improve the initial temperature of contactor pump continuous physical batch mixing, reduces physics batch mixing denseness, accelerates modifier and drops into speed, improves equipment capacity.
Preferably; In the device of above-mentioned production modified bitumen; The discharging opening top of said insulation tower also is provided with extract opening; Said extract opening is communicated with condensing apparatus, and the output of said condensing apparatus is communicated with air inlet port, the mixing device of knockout drum respectively, and the gas outlet of said knockout drum is connected with electromagnetism and burns pipe.The method of above-mentioned production modified bitumen also comprises the exhaust-gas treatment step: the waste gas of producing the modified bitumen generation can get into condenser condenses through extract opening; Condensed fixed gas gets in the knockout drum and carries out gas-liquid separation; Export to electromagnetism burning pipe and carry out the high temperature incineration process, condensate regularly is disposed to mixing device and further utilizes.Because the reaction combustible exhaust gas can be effectively isolated in the liquid water seal, can when realize Purge gas, decompression cooling, avoid fuel gas to reflux and get in the insulation tower simultaneously.
In sum; Owing to adopted technique scheme; The beneficial effect of the utility model is: be different from the prior art and from top to bottom throw earlier the process of afterwards mixing from the still mouth; Be directed into after material fully mixed in the insulation tower again and heat mixing, it is insufficient to avoid the flowability of compound when modifier increases gradually to reduce the batch mixing that causes gradually; Simultaneously, material is carried out batch mixing, owing to be provided with the gap between moving-coil and the fixed circle through the contactor pump that is provided with moving-coil and fixed circle; In the batch mixing process; The material that is positioned at the gap is rubbed refinement down in the moving-coil and the shearing of the relative motion of fixed circle, makes mixing of materials more fully and improve the flowability of compound, and the modified bitumen quality of production is good; The modifier volume can be greater than 20% in the modified bitumen; Can make full use of modifier such as waste rubber powder, and in the case, each item index still can reach relevant criterion;
Compound is upwards raised with liquid level by insulation tower bottom and carries out heat exchange; Make compound under big, the mobile poor situation of viscosity; Also can fully mix heat, conduction oil can effectively be controlled synthetic exothermic reaction and produce a large amount of heats between simultaneously a large amount of synthetic tower tubulations, guarantees the reactant quality.
To pass through compound after the insulation tower heat exchange as required and lead and be back in the contactor pump, and when the compound bad, lead being back in the contactor pump, simultaneously, the high temperature compound that is back in the contactor pump also can improve material temperature in the contactor pump, makes mixing of materials more abundant.Conduction oil can effectively be controlled synthetic exothermic reaction and produce a large amount of heats between a large amount of synthetic tower tubulations, guarantees the reactant quality.
Description of drawings
The utility model will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the structural representation that the utility model is produced the device of modified bitumen.
Fig. 2 is the local enlarged diagram that the utility model is produced contactor pump in the device of modified bitumen.
Reference numeral: contactor pump-1; Insulation tower-2; Discharging gas disposal device-3; Motor-4; Shaft coupling-5; Moving-coil-6; Hopper-7; Fixed circle-8; Walk hopper-9; Compound outlet-10; Shell-11; Pump head conduction oil chuck-12; Pump head heat conductive oil inlet-13; Pump head conduction oil outlet-14; Bitumenpump-15; Low head-16; Upper cover-17; Shell and tube reactor-18; Take out material bitumenpump-19; Compound import-20; Insulation tower heat conductive oil inlet-21; Refluxing opening-22; Insulation tower conduction oil outlet-23; Extract opening-24; Discharging opening-25; Return line-26; Recycle control valve-27; Take out material bitumenpump-28; Vacuum pump-29; Condensing apparatus-30; Knockout drum-31; Electromagnetism burns pipe-32; Emergency overflow hole-33; Screen cloth-34.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
Disclosed all characteristics in this manual, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this manual (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
As depicted in figs. 1 and 2, the device that the present invention produces modified bitumen mainly comprises contactor pump 1, insulation tower 2, discharging gas disposal device 3, wherein; Contactor pump 1 is a shear pump, and the charging aperture of contactor pump 1 is communicated with hopper 7, and the rotating shaft of contactor pump 1 is provided with moving-coil 6; Moving-coil 6 links to each other with the rotor of motor 4 through shaft coupling 5, and what be axially disposed within moving-coil 6 both sides along contactor pump 1 rotating shaft is respectively liquid asphalt material inlet and the import of powdery solid modifier, and moving-coil 6 radial outsides are provided with decides circle 8; Surely enclose 8 moving-coil 6 is coated in, moving-coil 6 and enclose 8 surely between be provided with the gap, in order to ccontaining material and shear, refinement; Surely enclose 8 outsides and be communicated with away hopper 9; Walk hopper 9 ringwise, and be coated on the outside of deciding circle 8, walk hopper 9 and be provided with the compound outlet 10 that is communicated with the input of bitumenpump 15.Walking hopper 9 arranged outside has shell 11, and shell 11 arranged outside have pump head conduction oil chuck 12, and the upper/lower terminal of pump head conduction oil chuck 12 is respectively arranged with pump head heat conductive oil inlet 13 and pump head conduction oil outlet 14; When moving-coil 6 during in high speed rotating; Be formed centrally negative pressure of vacuum in the moving-coil 6, to the material generation swabbing action of both sides, the liquid, the solid material that receive suction force entering moving-coil 6 stir in high speed and are thrown toward peripheral deciding in the circle 8 under the centrifugal action; Moving-coil 6 with enclose 8 surely and be provided with the gap diametrically; Material moving-coil 6 with enclose surely after mixing is sheared in the extruding rubbing in 8 the gap, under the drive of centrifugal force, after bitumenpump 15 pressurizations, pump in the insulation tower 2 by compound outlet 10; Compound gets into insulation tower 2 from the compound import 20 that is arranged on insulation tower 2 bottoms, and from bottom to top raises heat exchange.
Preferably, offer emergency overflow hole 33, avoid when reinforced, overflowing on hopper 7 tops.The charging aperture of hopper 7 is provided with screen cloth 34, and before material got into hopper 7, the thick slag that possibly influence quality of finished filtered.
Discharging gas disposal device 3 is realized environment protection emission in order to carry out exhaust-gas treatment; Discharging gas disposal device 3 comprises the condensing apparatus 30 that is communicated with the extract opening 24 of insulation tower 2; Be provided with condensation pipe in the condensing apparatus 30, the output of condensing apparatus 30 is communicated with hopper 7, vacuum pump 29 respectively, and the waste gas that produces during synthetic reaction is at first just cold through condensing apparatus 30; A part of waste gas is condensed into liquid state after the condensation, and liquid condensate is back to recycle in the hopper 7 through pipeline; Simultaneously; The gas that is not condensed is got under the liquid level of knockout drum 31 by vacuum pump 29 suctions; Behind the liquid flush away impurity in the knockout drum 31; Bubbling overflows from liquid, realizes gas-liquid separation, and the gas after gas-liquid separation is handled gets into electromagnetism burning pipe 32 to carry out discharging after the harmless treatment.
Insulation tower 2 is the equipment that the modified bitumen synthetic reaction is obtained energy and exchange heat control reaction temperature; Insulation tower 2 comprises the low head 16 and upper cover 17 that lays respectively at its bottom and top; Be provided with shell and tube reactor 18 in the zone in the insulation tower 2 between upper cover 17 and low head 16; Shell and tube reactor 18 is a tubular heat exchanger, and the bottom of shell and tube reactor 18 is provided with insulation tower heat conductive oil inlet 21, and insulation tower heat conductive oil inlet 21 is communicated with pump head conduction oil outlet 14; Pump head conduction oil outlet 14 is communicated with the pump head conduction oil chuck 12 of contactor pump 1, and passes through pump head conduction oil chuck 12 and be communicated with pump head heat conductive oil inlet 13.Also be provided with the vacuum heat-preserving chuck outside the insulation tower 2, the vacuum heat-preserving chuck is a double-jacket, and the vacuum heat-preserving chuck is the chuck layer with insulation tower 2 adjacent sides, and the vacuum heat-preserving chuck is a vacuum heat-insulating layer away from a side of insulation tower 2, and vacuum heat-insulating layer inside is vacuum.One end of insulation tower heat conductive oil inlet 21 is communicated with pump head conduction oil outlet 14; The other end is directed into conduction oil in the chuck layer; Insulation tower conduction oil outlet 23 is arranged on the chuck layer away from insulation tower heat conductive oil inlet 21 1 sides; Conduction oil gets into shell and tube reactor 18 from the bottom, after abundant heat exchange, export from the top again.
Preferably; Low head 16 inner chambers that are positioned at insulation tower 2 bottoms are tapered, when material is up, help not mixing homogeneous granules deposition; So that enter into the material of shell and tube reactor 18 is the uniform liquid material of mixing; In taper low head 16 waste residue of deposition more for a long time, but stop production to overhaul is convenient to residue cleaning.Low head 16 bottoms also are communicated with takes out material bitumenpump 28, after device is closed, can remaining compound extraction in the insulation tower 2 be drained through taking out material bitumenpump 28, plays the effect of emptying, and preheating time is long when avoiding use next time.
Preferably, upper cover 17 inner chambers that are positioned at insulation tower 2 tops are ball-type, and the upper cover 17 of ball-type helps eliminating stress concentrated, to improve the structural strength of insulation tower 2 integral body.
Above shell and tube reactor 18, be provided with the refluxing opening 22 that is communicated with contactor pump 1; Be provided with by return line 26 and recycle control valve 27 between refluxing opening 22 and the contactor pump 1 and form the control device that modified effect is directly proportional with the modifier volume; Recycle control valve 27 is installed in return line 26 near floor level places, helps terrestrial operation convenient; Can observe the batch mixing situation according to the quality of the compound that flows out from discharging opening 25, the keying degree of regulating recycle control valve 27 as required is back to a certain proportion of compound to carry out secondary heat exchange in the contactor pump 1.Through the material of return line 26 high temperature refluxes, can improve the initial temperature that gets into the matrix pitch in the contactor pump 1, and can improve the aging point of matrix pitch by the modifier composition in the backflow material, make it in >=170 ℃ reflux course, keep not aging.
The insulation tower 2 that is positioned at refluxing opening 22 tops is provided with discharging opening 25, and discharging opening 25 and external communications are with the finished product synthetic asphalts output after the mixing reaction evenly.The insulation tower 2 that is positioned at above the discharging opening 25 is provided with extract opening 24, and preferred, extract opening 24 bottoms and discharging opening 25 in the vertical directions are provided with difference in height, to prevent extract opening 24 suck-backs.
Also be communicated with in insulation tower 2 bottoms and take out material bitumenpump 28, when insulation tower 2 quit work, taking out material bitumenpump 28, need to take out in the most insulation tower 2 institute's heeltaps blue or green, and discharge overbottom pressure.
The raw material of producing modified bitumen in the listed examples of the present invention comprises matrix pitch and modifier, and wherein matrix pitch is the 70# matrix pitch, and modifier is the modifying rubber powder agent.Said modifying rubber powder agent is made up of junked tire powder and hexylene glycol, and wherein the mass ratio of junked tire powder and hexylene glycol is 95:5.The device of production modified bitumen of the present invention is also applicable to other matrix pitches and modified bitumen.
The device of the production modified bitumen that present embodiment is enumerated comprises the mixing device that is provided with material inlet; Mixing device comprises contactor pump, and this mixing device is communicated with insulation tower 2, is provided with bitumenpump 15 between mixing device and the insulation tower 2; Insulation tower 2 is provided with compound import 20 and discharging opening 25; Wherein compound import 20 is arranged on the bottom of insulation tower 2, and discharging opening 25 is arranged on the top of insulation tower 2, is provided with shell and tube reactor 18 in the zone in the insulation tower 2 between compound import 20 and discharging opening 25; Wherein, shell and tube reactor 18 is a tubular heat exchanger.
The method that the device that utilizes present embodiment to produce modified bitumen is produced modified bitumen may further comprise the steps:
(1), matrix pitch and modifier are entered into the mixing device that comprises contactor pump by the mass ratio of 4:1 through material inlet, stir, the compound after the stirring is pumped into the compound import 20 that is incubated the tower bottom by contactor pump and bitumenpump 15;
(2), compound gets in the shell and tube reactor 18 in the insulation tower 2 from compound import 20; Under 190-210 ℃, carry out oxidation, hydrocarbonylation, rearrangement reaction; And carry out fluid interchange with the rising of compound liquid level; Keep reactor temperature, the compound after reaction and the heat exchange obtains modified bitumen product from being arranged on discharging opening 25 outputs on insulation tower top.
The device that utilizes present embodiment to enumerate is produced modified bitumen, and the material mixing evenness is high, no modifier caking phenomenon; Improve compound through bitumenpump and pump into the pressure in the insulation tower; Compound can more successfully be promoted and heat exchange from the bottom to top; Improved the problem that the high viscosity compound is difficult to even Hybrid Heating; Help increasing the volume of modifier in the modified bitumen simultaneously, improve the Pavement Performance of modified bitumen, practice thrift cost.Because air fully contacts with matrix pitch, modifier, reaction is violent, can make full use of reaction heat, practices thrift heat energy; Can realize the serialization of producing, production efficiency is high, gets into mixing arrangement to obtaining modified bitumen product by insulation tower discharging opening from raw material, approximately needs about 2min; In the modified bitumen of producing, the volume of modifier is high, can effectively utilize waste rubber powder, and the performance of modified bitumen of production is good, and 5 ℃ of ductilities are 13cm, and 25 ℃ of needle penetrations are 68, and softening point is 85 ℃, meets relevant national standard.
Embodiment 2
The device that present embodiment is produced modified bitumen comprises the mixing device that is provided with material inlet, and mixing device comprises that rotating shaft is provided with the contactor pump 1 of moving-coil 6, and the rotating shaft of contactor pump 1 links to each other with motor 4 rotary heads through shaft coupling 5 and realizes rotating; Moving-coil 6 is through adopting the key ways of connecting to realize coaxial rotation with the rotating shaft of contactor pump 1, and the radial outside of moving-coil 6 is provided with decides circle 8, when the rotating shaft of contactor pump 1 is rotated; Surely enclose 8 and do not rotate thereupon, and realize relatively rotating with the moving-coil 6 of coaxial rotation, enclose surely 8 moving-coil 6 is coated in; Moving-coil 6 is an impeller, moving-coil 6 and enclose 8 surely between be provided with the gap, the size in gap is 5mm; Material inlet with enclose 8 internal communication surely; Pitch and modifier through material inlet input to decide circle 8 inside after, by moving-coil 6 stir mixings, material is moving-coil 6 radially outward throwing away of the action of centrifugal force lower edge moving-coil that produces of rotation at a high speed; And realize rubbing, milling with enclosing surely in 8 the gap at moving-coil 6, material is fully mixed and further fine and closely wovenization; Simultaneously, material inlet is arranged near the deciding on the circle 8 of rotating shaft center, and is communicated to the interior ring of moving-coil 6, and the moving-coil 6 of rotation forms vacuum area at the interior ring of moving-coil 6 at a high speed, can constantly extract additional new material from material inlet.
Mixing device is communicated with compound import 20 on being incubated tower 2 through the compound outlet 10 of enclosing surely on 8; Be provided with bitumenpump 15 between mixing device and the insulation tower 2; Through bitumenpump 15 mixed material pressurization in the mixing device is inputed in the insulation tower 2; Insulation tower 2 is provided with compound import 20 and discharging opening 25; Wherein compound import 20 is arranged on the bottom of insulation tower 2, and discharging opening 25 is arranged on the top of insulation tower 2, is provided with tubular heat exchanger 18 in the zone in the insulation tower 2 between compound import 20 and discharging opening 25.
The method that the device that utilizes present embodiment to produce modified bitumen is produced modified bitumen may further comprise the steps:
(1), matrix pitch and modifier enter into the mixing device that comprises contactor pump by the mass ratio of 3:2 through material inlet: the moving-coil with the rotating shaft coaxial rotation of contactor pump rotates under the swabbing action of formed negative pressure region; Matrix pitch and modifier through material inlet enter into the radial outside that is arranged at moving-coil, in moving-coil is coated on, be communicated with material inlet decide circle; Stir, and shear refinement in the gap between contactor pump moving-coil and fixed circle; Compound behind stirring, the shearing refinement 1min pumps into the compound import of insulation tower bottom;
(2) compound gets in the insulation tower from the compound import that is arranged on the bottom that is incubated tower; Under 180 ℃～200 ℃ condition, melt the reaction of expanding; And carry out fluid interchange with the rising of compound liquid level; Compound behind reaction and the heat exchange 1min obtains modified bitumen product from being arranged on the discharging opening output on insulation tower top.
The device that utilizes present embodiment to enumerate is produced modified bitumen, owing to adopt mode centrifugal, that shear to carry out batch mixing, refinement between moving-coil and the fixed circle, the material mixing evenness is high, and no modifier caking phenomenon makes the volume of modifier can reach 40%; Because air fully contacts with matrix pitch, modifier, reaction is violent, can make full use of reaction heat, practices thrift heat energy; Can realize the serialization of producing, production efficiency is high, gets into mixing arrangement to obtaining modified bitumen product by insulation tower discharging opening from raw material, approximately needs about 2min; In the modified bitumen of producing, the volume of modifier is high, can effectively utilize waste rubber powder, and the performance of modified bitumen of production is good; The performance of modified bitumen of producing is good, and 5 ℃ of ductilities are 15cm, and 25 ℃ of needle penetrations are 72, and softening point is 88 ℃, meets relevant national standard.
The device that present embodiment is produced modified bitumen comprises the mixing device that is provided with material inlet; Mixing device is communicated with insulation tower 2; Be provided with bitumenpump 15 between mixing device and the insulation tower 2; Through bitumenpump 15 mixed material pressurization in the mixing device is inputed in the insulation tower 2, insulation tower 2 comprises the double-layer vacuum housing and is connected to the upper cover 17 and low head 16 of double-layer vacuum housing upper and lower end that insulation tower 2 is provided with compound import 20 and discharging opening 25; Compound import 20 is arranged on the low head 16 of insulation tower 2; Discharging opening 25 is arranged on the upper cover 17 of insulation tower 2, and the taper that the inner chamber of low head 16 is big up and small down is provided with shell and tube reactor 18 in the zone in the insulation tower 2 between compound import 20 and discharging opening 25.
Utilize the method for device production modification drop that present embodiment produces modified bitumen with embodiment 1.The performance of modified bitumen that present embodiment is produced is good, and in the modified bitumen of production, the volume of modifier is high; Can effectively utilize waste rubber powder, the performance of modified bitumen of production is good, and 5 ℃ of ductilities are 14cm; 25 ℃ of needle penetrations are 67, and softening point is 84 ℃, meets relevant national standard.When device stops to produce; Material in the insulation tower can be taken advantage of a situation and sunk down into the bottom of low head 16; The material bitumenpump 28 of taking out by low head 16 bottoms are communicated with is extracted material out, prevents material sedimentary metamorphic in insulation tower 2, is unfavorable for being incubated the cleaning and the use of tower 2 inside.
Mixing device in the device of present embodiment production modified bitumen comprises that rotating shaft is provided with the contactor pump 1 of moving-coil 6; The rotating shaft of contactor pump 1 links to each other with motor 4 rotary heads through shaft coupling 5 and realizes rotating, and moving-coil 6 is through adopting the key ways of connecting to realize coaxial rotation with the rotating shaft of contactor pump 1, and the radial outside of moving-coil 6 is provided with decides circle 8; When the rotating shaft of contactor pump 1 is rotated; Surely enclose 8 and do not rotate thereupon, and realize relatively rotating with the moving-coil 6 of coaxial rotation, enclose surely 8 moving-coil 6 is coated in; Moving-coil 6 and enclose 8 surely between be provided with the gap, material inlet with enclose 8 surely and be communicated with.
Surely enclose 8 radial outside and be provided with away hopper 9; Walking hopper 9 is provided with away hopper 9 discharging openings and walks hopper 9 charging apertures; Saidly walk hopper 9 charging apertures and enclose 8 surely and be communicated with; Stir with moving-coil 6 and to rub laggard compound and get into away in the hopper 9 through enclosing 8 surely, walk the far-end that was positioned at hopper 9 charging apertures on the hopper 9 and be provided with away hopper 9 discharging openings, promptly walk hopper 9 charging apertures and walk the radially two ends that hopper 9 discharging opening branches are located at away hopper 9 through walking hopper 9 charging apertures.Material is discharged after hopper 9 half-turns make mixing of materials mix more evenly around walking after getting into hopper 9 again, and mixing device is communicated with compound import 20 on being incubated tower 2 through the compound outlet of walking on the hopper 9 10.
Present embodiment is produced all the other structures of modified bitumen device referring to embodiment 2.
Utilize method that the device of present embodiment produces modified bitumen with embodiment 2, wherein stir in the step (1), shear compound after the refinement pump into decide circle 8 radial outside settings walk hopper 9 after, the compound import 20 that gets into insulation tower 2 bottoms again.Can make and receive the compound that centrifugal force throws away and enter into insulation tower 2 more evenly, densely.The performance of modified bitumen that present embodiment is produced is good, and 5 ℃ of ductilities are 16cm, and 25 ℃ of needle penetrations are 73, and softening point is 86 ℃, meets relevant national standard.
Present embodiment is produced in the device of modified bitumen; The top of insulation tower 2 discharging openings 25 also is provided with extract opening 24; Extract opening 24 is communicated with condensing apparatus 30, and extract opening 24 links to each other with the air inlet port of condensing apparatus 30, and the output of condensing apparatus 30 is communicated with air inlet port, the mixing device of knockout drum 31 respectively; The gas outlet of knockout drum 31 is connected with electromagnetism and burns pipe 32, and the liquid in order to purifying exhaust air is housed in the knockout drum 31.
Present embodiment is produced all the other structures of modified bitumen device referring to embodiment 2.
The method that present embodiment is produced modified bitumen is except the included step of embodiment 2; Also comprise the exhaust-gas treatment step: the waste gas of producing the modified bitumen generation gets into condenser condenses through extract opening; Condensed fixed gas gets in the knockout drum and carries out gas-liquid separation; Export to electromagnetism burning pipe and carry out the high temperature incineration process, condensate regularly is disposed to mixing device and further utilizes.
Be provided with insulation tower conduction oil chuck and pump head conduction oil chuck in the device of present embodiment production modified bitumen; Shell and tube reactor 18 bottoms and top are communicated with insulation tower heat conductive oil inlet 21 and insulation tower conduction oil outlet 23 respectively; The mixing device skin is provided with pump head conduction oil chuck 12; Pump head conduction oil chuck 12 is provided with pump head heat conductive oil inlet 13 and pump head conduction oil outlet 14; In order to make the conduction oil pump head conduction oil chuck 12 of fully flowing through; Pump head conduction oil outlet 14 is positioned at pump head heat conductive oil inlet 13 far-ends, and pump head heat conductive oil inlet and pump head conduction oil outlet 14 are parallelly connected with the import and export of insulation tower conduction oil, make shell and tube reactor 18 and the 12 synchronous heat exchange of pump head conduction oil chuck.
Present embodiment is produced all the other structures of modified bitumen device referring to embodiment 2.
Present embodiment is produced the method for modified bitumen with embodiment 2, wherein, and when the material in the shell and tube reactor 18 does not reach the reaction initial temperature; By insulation tower conduction oil chuck heat energy is provided, when temperature is too high, i.e. temperature>200 ℃ times; Conduction oil is taken away unnecessary heat, constant reaction temperature.Conduction oil by in the insulation tower conduction oil chuck provides, and pump head conduction oil chuck 12 makes the material in the mixing device keep higher mixture temperature to the heating of mixing device inner chamber, further improves the batch mixing quality.The performance of modified bitumen that present embodiment is produced is good, and 5 ℃ of ductilities are 18cm, and 25 ℃ of needle penetrations are 77, and softening point is 86 ℃, meets relevant national standard.
Embodiment 7
Present embodiment is produced in the device of modified bitumen; Insulation tower 2 tops are provided with refluxing opening 22; Be provided with return line 26 between the material inlet of refluxing opening 22 and mixing device, said refluxing opening 22 is communicated with through return line 26 with mixing device, on return line 26, also is provided with recycle control valve 27.
Present embodiment is produced all the other structures of modified bitumen device referring to embodiment 2.
Present embodiment is produced the method for modified bitumen with embodiment 2, wherein, and when the abundant inferior quality of synthetic asphalts unreacted of discharging opening 25 outputs; Can open refluxing opening 22 through regulating the keying degree of recycle control valve 27, synthetic asphalts is fed back in the mixing device through return line 26; Carrying out the secondary stirring batch mixing with new raw material reacts through shell and tube reactor more again; The device that moves in circles reacts again, moves in circles until qualified, more helps ensureing the quality of product.The performance of modified bitumen that present embodiment is produced is good, and 5 ℃ of ductilities are 18cm, and 25 ℃ of needle penetrations are 78, and softening point is 86 ℃, meets relevant national standard.
Comparative Examples
Further specify the parameter comparison of the performance indications of utilizing the modified bitumen that apparatus and method that present embodiment enumerates produce and the performance indications of conventional rubber asphalt below through Comparative Examples, further specify the effect of the modified bitumen of the present invention's production.
The raw materials used raw material that comprises comprises matrix pitch and modifier in this Comparative Examples, and wherein matrix pitch is the 70# matrix pitch, and modifier is the modifying rubber powder agent.Said modifying rubber powder agent is made up of junked tire powder and hexylene glycol, and wherein the mass ratio of junked tire powder and hexylene glycol is 95:5.
In this contrast test, the rubber powder ratio is 17%, 18%, 19% in the conventional rubber asphalt, and its preparation method is in the experiment indoor production, continuous stirring one hour, and whipping temp is 180～195 ℃, its average behavior index parameter is as shown in table 1:
The average behavior index parameter of table 1, conventional rubber asphalt
| Pilot project | Test result | Test method |
| Needle penetration (25 ℃, 100g, 5s) (0.1mm) | 67 | JTJ?T0604-2000 |
| Ductility (5cm/min, 15 ℃) (cm) | ＞100 | JTJ?T0605-1993 |
| Softening point (ring and ball method) (℃) | 47 | JTJ?T0606-2000 |
| Flash-point (℃) | 240 | JTJ?T0611-1993 |
| Wax content (way of distillation) (%) | 1.5 | JTJ?T0615-2000 |
| 60 ℃ of dynamic viscosity Pa.s | 236 | JTJ?T0620-2000 |
In the modified bitumen that this Comparative Examples is produced, its modifier volume is 40%, behind the shearing 1min, is input to 180 ℃～200 ℃ the interior heat exchange 1min of insulation tower again in the gap in contactor pump between moving-coil and fixed circle, and its performance parameter index is as shown in table 2:
The performance indications parameter of table 2, Test Example modified bitumen
Each item performance indications for better relatively the present invention and conventional rubber asphalt; Put modified bitumen of the present invention for preparing and conventional rubber asphalt into 180 ℃ baking oven insulation simultaneously; Test indexs of correlation such as needle penetration under the time of 5H, 12H, 24H, 36H, 48H, 72H, 144H, 180H, softening point, 185 ℃ of Bu Shi rotary viscosities, elastic return respectively, experimental result sees that table 3 is to shown in the table 5:
Table 3: modified bitumen of the present invention and conventional rubber asphalt needle penetration (0.1mm) are shown over time
Table 4: 185 ℃ of Bu Shi rotary viscosities of modified bitumen of the present invention and conventional rubber asphalt (Pa.s) are shown over time
Table 5: modified bitumen of the present invention and conventional rubber asphalt elastic return (%) are shown over time
Other is to the conventional rubber asphalt (the conventional rubber powder of 17%, 18%, 19% 30 orders) and the rubber asphalt of the present invention (40% 30 order activating rubber powders) of three kinds of volumes; Totally four kinds of rubber asphalts; Four kinds of direct testing needle in-degrees in rubber asphalt processing back, softening point, ductility, flash-point, wax content, elastic return and viscosity indexes, test result is seen table 6:
Table 6: with the performance comparison table of three kinds of conventional rubber asphalts
Can find out that by above-mentioned comparative test result performance of modified bitumen of the present invention is superior to conventional rubber asphalt.Particularly in the high temperature storage process, there is not the decaying phenomenon significantly of conventional rubber asphalt in indexs such as its softening point, viscosity, elastic recovery, can long term storage.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (18)
1. device of producing modified bitumen; Comprise the mixing device that is provided with material inlet; Said mixing device comprises contactor pump, and said mixing device is communicated with the insulation tower that is provided with heat-exchanger rig, and said insulation tower is provided with compound import and discharging opening; It is characterized in that: said compound import is arranged on the bottom of insulation tower, and said discharging opening is arranged on the top of insulation tower.
2. the device of production modified bitumen according to claim 1; It is characterized in that: the rotating shaft of said contactor pump is provided with moving-coil, and said moving-coil is with the rotating shaft coaxial rotation of contactor pump, and the radial outside of said moving-coil is provided with decides circle; In said fixed circle is coated on moving-coil; Said material inlet is communicated with fixed circle, and said fixed circle is communicated with the compound import of insulation tower, is provided with the gap between said moving-coil and the fixed circle.
3. the device of production modified bitumen according to claim 2 is characterized in that: said material inlet is arranged on deciding on the circle near the rotating shaft center.
4. the device of production modified bitumen according to claim 2 is characterized in that: said material inlet is communicated to ring in the moving-coil.
5. the device of production modified bitumen according to claim 4 is characterized in that: said moving-coil is an impeller, and radially gap length is 0.5mm～10mm between said impeller and the fixed circle.
6. the device of production modified bitumen according to claim 2; It is characterized in that: the radial outside of said fixed circle also is provided with away hopper; The said hopper of walking comprises walking the hopper discharging opening and walks the hopper charging aperture; The said hopper charging aperture of walking is communicated with fixed circle, and the said hopper discharging opening of walking is communicated with the compound import that is incubated tower.
7. the device of production modified bitumen according to claim 6 is characterized in that: walk the hopper charging aperture and walk the radially two ends that hopper discharging opening branch is located at away hopper.
8. the device of production modified bitumen according to claim 6 is characterized in that: the said hopper of walking also is provided with pump head conduction oil chuck outward.
9. the device of production modified bitumen according to claim 8 is characterized in that: said contactor pump is provided with hopper, and the bottom of said hopper is communicated with material inlet, is provided with screen cloth in the said hopper.
10. according to the device of the described production modified bitumen of arbitrary claim in the claim 1 to 9, it is characterized in that: also be provided with bitumenpump between said contactor pump and the insulation tower.
11. the device of production modified bitumen according to claim 10 is characterized in that: the heat-exchanger rig of said insulation tower is a shell and tube reactor, and said shell and tube reactor is arranged at the zone between interior compound import of insulation tower and the discharging opening.
12. the device of production modified bitumen according to claim 11; It is characterized in that: said insulation tower comprises cylindrical shell, be arranged at the upper cover at cylindrical shell top and be arranged at the low head of cylindrical shell bottom, taper that the inner chamber of said low head is big up and small down or taper type.
13. the device of production modified bitumen according to claim 12 is characterized in that: the low head bottom of said insulation tower also is communicated with takes out the material bitumenpump.
14. the device of production modified bitumen according to claim 11; It is characterized in that: said insulation tower skin is provided with insulation tower conduction oil chuck; Said insulation tower conduction oil chuck comprises insulation tower heat conductive oil inlet and the outlet of insulation tower conduction oil, and outlet is communicated with shell and tube reactor bottom and top respectively insulation tower heat conductive oil inlet with insulation tower conduction oil.
15. the device of production modified bitumen according to claim 14; It is characterized in that: the outer pump head conduction oil chuck that is provided with of contactor pump comprises pump head heat conductive oil inlet and the outlet of pump head conduction oil, and said pump head heat conductive oil inlet and the outlet of pump head conduction oil are communicated with the outlet of insulation tower conduction oil, insulation tower heat conductive oil inlet respectively.
16. the device of production modified bitumen according to claim 14 is characterized in that: the insulation tower conduction oil chuck of said insulation tower also is provided with the vacuum heat-preserving chuck outward, and said vacuum heat-preserving chuck is communicated with vacuum pump.
17. the device of production modified bitumen according to claim 11 is characterized in that: said insulation tower top is provided with refluxing opening, and said refluxing opening is connected with the material inlet of mixing device through return line.
18. the device of production modified bitumen according to claim 11; It is characterized in that: the discharging opening top of said insulation tower also is provided with extract opening; Said extract opening is communicated with condensing apparatus; The output of said condensing apparatus is communicated with the air inlet port of knockout drum, and the gas outlet of said knockout drum is connected with electromagnetism and burns pipe.
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| CN201120407636XU CN202390743U (en) | 2011-10-24 | 2011-10-24 | Device for producing modified asphalt |
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| CN201120407636XU CN202390743U (en) | 2011-10-24 | 2011-10-24 | Device for producing modified asphalt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444074A (en) * | 2011-10-24 | 2012-05-09 | 周其强 | Device for producing modified asphalt and method for producing modified asphalt by using device |
| CN108949219A (en) * | 2018-08-10 | 2018-12-07 | 荆州大地生物工程股份有限公司 | A kind of production technology of clean fuel liquid oil vacuum deodorization extraction device |
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2011
- 2011-10-24 CN CN201120407636XU patent/CN202390743U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444074A (en) * | 2011-10-24 | 2012-05-09 | 周其强 | Device for producing modified asphalt and method for producing modified asphalt by using device |
| CN102444074B (en) * | 2011-10-24 | 2014-03-12 | 周其强 | Device for producing modified asphalt and method for producing modified asphalt by using device |
| CN108949219A (en) * | 2018-08-10 | 2018-12-07 | 荆州大地生物工程股份有限公司 | A kind of production technology of clean fuel liquid oil vacuum deodorization extraction device |
| CN108949219B (en) * | 2018-08-10 | 2020-09-01 | 荆州大地生物工程股份有限公司 | Process for producing biodiesel by adopting vacuum deodorization extraction device |
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