CN116537004B - Foam regenerated asphalt mixture stirring equipment with tail gas separation function - Google Patents
Foam regenerated asphalt mixture stirring equipment with tail gas separation function Download PDFInfo
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- CN116537004B CN116537004B CN202310827814.1A CN202310827814A CN116537004B CN 116537004 B CN116537004 B CN 116537004B CN 202310827814 A CN202310827814 A CN 202310827814A CN 116537004 B CN116537004 B CN 116537004B
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- 238000003756 stirring Methods 0.000 title claims abstract description 49
- 239000010426 asphalt Substances 0.000 title claims abstract description 47
- 239000006260 foam Substances 0.000 title claims abstract description 38
- 239000000203 mixture Substances 0.000 title claims abstract description 35
- 238000000926 separation method Methods 0.000 title claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 79
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 238000007790 scraping Methods 0.000 claims description 37
- 230000005484 gravity Effects 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 25
- 239000002893 slag Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 238000002523 gelfiltration Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 2
- 230000008929 regeneration Effects 0.000 abstract description 11
- 238000011069 regeneration method Methods 0.000 abstract description 11
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012257 stirred material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000020347 spindle assembly Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
- E01C19/1072—Supplying or proportioning the ingredients the solid ingredients
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention discloses foam reclaimed asphalt mixture stirring equipment with a tail gas separation function, which relates to the technical field of foam asphalt regeneration, based on the tail gas characteristics generated during foam asphalt regeneration operation, the invention utilizes stirring sheets to stir and mix a base material and a fluid material mixture, simultaneously enables the whole stirring action to be in a relatively sealed environment, causes the tail gas to enter into the interior of a gas mixing cylinder only along an air inlet, utilizes a conical cap to filter out and attach or fall on the lower side of the gas mixing cylinder on the premise of ensuring the tail gas to pass, and aims to prevent the tail gas doped with viscous solid substances from entering into processing equipment to influence the operation of the tail gas processing equipment, further utilizes the air pressure rising during the tail gas input, and then executes the tail gas periodic exhaust action which is divided into active and passive modes, wherein the aims are as follows: the attached viscous solid substances are blown down, so that the active exhaust emission process is prevented from being influenced.
Description
Technical Field
The invention relates to the technical field of foam asphalt regeneration, in particular to foam regenerated asphalt mixture stirring equipment with a tail gas separation function.
Background
The foam asphalt regenerating technology for regenerating and utilizing recovered asphalt pavement material and cement stable base material is characterized by that a certain normal-temperature water is injected into hot asphalt to make it expand so as to form a large quantity of asphalt foam, and the asphalt foam is fully adhered on the recovered pavement material or fine material joint compound, and can be referred to the key technology of cold regeneration of foamed asphalt of asphalt pavement.
The foam asphalt regeneration and the conventional asphalt production process still generate harmful tail gas in the regeneration process, and the method for treating the tail gas in the foam asphalt cold regeneration mainly comprises a condensation method, an absorption purification method, a combustion method and the like, wherein the harmful tail gas is required to be treated in a concentrated manner according to the green environment-friendly concept.
What needs to be described for the above is: in the foam asphalt regeneration process, a part of fine asphalt foam is discharged along with the tail gas, and the viscosity of the asphalt foam is high, so that a large amount of solid substances are doped in the tail gas, and when the tail gas enters the treatment equipment, the operation state of the treatment equipment is seriously influenced, specifically: because of the viscosity problem, asphalt bubbles and solid substances in the tail gas can adhere to the inner wall of the tail gas discharge pipeline or the treatment layer in the treatment equipment, so that the discharge process of the tail gas is affected, and the maintenance cost of the treatment equipment or the tail gas pipeline is required to be increased in the subsequent work.
Disclosure of Invention
The invention aims to provide foam reclaimed asphalt mixture stirring equipment with a tail gas separation function, and aims at the tail gas discharge process in the stirring action in the current foam asphalt regeneration process, because the tail gas has 'viscosity', the tail gas discharge process is influenced, and the maintenance cost of treatment equipment or a tail gas pipeline is required to be increased in the subsequent work.
The aim of the invention can be achieved by the following technical scheme: the foam regenerated asphalt mixture stirring equipment with the tail gas separation function comprises three layers of towers, wherein a reaction cylinder which is vertically arranged is arranged at the central point of the lower layer position of each of the three layers of towers, a controller is arranged at the middle layer position of each of the three layers of towers, a vertically arranged gas mixing cylinder is rotatably arranged at the central point position of each of the reaction cylinders, two feeding ports are arranged at the outer wall position of the circumference of each of the reaction cylinders, and a liquid injection pipe is arranged at the upper end position of each of the reaction cylinders;
the circumference outer wall of the gas mixing cylinder in the reaction cylinder is provided with a plurality of stirring sheets, the upper side of the circumference outer wall and the lower side of the circumference outer wall of the gas mixing cylinder are respectively provided with a gas inlet and a slag discharging port, the upper end of the gas mixing cylinder is rotatably provided with a gas exhaust pipe sleeve, the center rotating shaft is vertically arranged at the center point of the mixing drum, a gravity piston block, an air inlet middle rotating plug and a spiral feeding sheet which correspond to the inner wall of the mixing drum are sequentially arranged on the center rotating shaft along the direction from top to bottom, and a driving structure which corresponds to the mixing drum and the center rotating shaft is arranged on the three-layer tower;
the gravity piston block is movably connected on the central rotating shaft, the gravity piston block is positioned at the middle position of the exhaust pipe sleeve and the air inlet, the lower end of the gravity piston block is conical, the air inlet middle rotating plug is fixedly connected on the inner wall position of the air mixing cylinder, the air inlet middle rotating plug is positioned at the upper side position of the air inlet, the spiral feeding sheet is arranged on the central rotating shaft, the setting position of the spiral feeding sheet corresponds to the slag discharging port, the hole is formed in the spiral feeding sheet, an electric valve is arranged on the reaction cylinder corresponding to the lower surface center point position of the lower side of the air mixing cylinder, a conical cap is arranged at the lower side center point of the air inlet middle rotating plug, a plurality of air holes are formed in the air inlet middle rotating plug and the conical cap, and the air mixing cylinder is positioned in the gravity piston block and the inner area of the air inlet middle rotating plug is provided with a clean air cavity.
Further provided is that: the driving structure comprises a first motor, a second motor, a first shaft disc and a second shaft disc, wherein the first shaft disc is arranged at the top end position of the central rotating shaft, the second shaft disc is arranged at the position of the outer wall of the circumference of the upper side of the reaction cylinder, the first motor and the second motor are arranged on a three-layer tower, and a belt is arranged between the output end of the first motor and the first shaft disc, between the output end of the second motor and the second shaft disc.
Further provided is that: the upper side of the exhaust pipe sleeve is fixedly provided with a positioning head which is arranged on the upper layer of the three-layer tower.
Further provided is that: the cross-section of reaction section of thick bamboo inner wall bottom is in the form of falling round platform, it flushes mutually between slag tap downside curved surface and the reaction section of thick bamboo inner wall bottom, install a plurality of support frames on the central pivot is located the circumference outer wall mid portion of rotary plug and spiral feeding piece in admitting air, install a plurality of annular doctor-bars on the support frame, phase-match between the outer curved surface of annular doctor-bar and the gas mixing section of thick bamboo inner wall.
Further provided is that: the annular scraping blade is arranged at the upper side, the inner curved surface of the fan-shaped scraping blade is matched with the outer curved surface of the conical cap, and the conical cap, the air inlet middle rotary plug and the central rotating shaft are in sliding connection.
Further provided is that: the central rotating shaft is provided with a buffer spring, and the lower end of the buffer spring is arranged on the central point of the upper surface of the air inlet rotary plug.
Further provided is that: the center shaft is provided with a plurality of aeration ports on the circumferential outer wall corresponding to the conical cap, and the air injection direction of the aeration ports is inclined downwards.
Further provided is that: and a positioning stop block is arranged on the circumferential outer wall of the central rotating shaft and positioned on the lower surface of the air inlet middle rotating plug.
The stirring equipment comprises the following steps in the operation process:
step one: injecting pavement base materials into the reaction cylinder through a feed inlet, injecting fluid materials of foam asphalt into the reaction cylinder through a liquid injection pipe, then sealing the feed inlet and the liquid injection pipe, and closing the lower opening of the mixing cylinder through an electric valve, wherein the height of the mixture of the base materials and the fluid materials in the reaction cylinder is not higher than that of the air inlet;
step two: firstly, starting a second motor to drive the gas mixing cylinder to rotate, driving the base material and the fluid material to be fully stirred by the stirring sheet, enabling generated tail gas to enter the gas mixing cylinder along the gas inlet, and enabling the tail gas to enter the clean gas cavity along the conical cap-gas inlet middle rotary plug;
step three: in the second step, the viscous solid matters in the tail gas are adhered to the conical cap, so that the gas-gel separation action of the tail gas is completed, and the gravity piston block is driven to move upwards along with the rising of the air pressure caused by the increase of the tail gas quantity in the air purifying cavity until the gravity piston block moves upwards to the interior of the corresponding exhaust pipe sleeve, and the gravity piston block moves downwards to reset;
step four: in the first to third steps, the two steps of active exhaust gel filtration action and passive exhaust gel filtration action are set, and the concrete steps are as follows:
active air exhaust and glue filtering actions: in the second to third steps, the first motor drives the central rotating shaft to rotate left and right in a reciprocating manner, and the rotating angle range is as follows: scraping the viscous solid matters adhered on the conical cap by a fan-shaped scraping blade at 30-55 degrees, and scraping the viscous solid matters adhered on the inner wall of the gas mixing cylinder by an annular scraping blade;
passive air-exhausting and rubber-filtering action: the first motor drives the central rotating shaft to rotate synchronously, high-pressure air is blown into the air cavity through the high-pressure air pipe, and the high-pressure air is blown onto the inner curved surface of the conical cap along the aeration port, so that the viscous solid substances are accelerated to be blown down.
Step five: the controller is used, and the controller comprises a time point recording module and a sub-control module, and is specifically as follows:
s1: firstly, presetting the exhaust interval time point of an exhaust pipe sleeve by a time point recording moduleAnd the time point recording module is used for collecting the time difference value of the continuous two-side exhaust actions of the exhaust pipe sleeve in the actual running state +.>；
S2: the time difference value acquired in the time point recording moduleSending feedback to the sub-control module, and setting the state as follows:
state one: at the position of＞/>The method comprises the steps of setting the exhaust device in an excellent exhaust state, executing active exhaust rubber filtering action and not executing passive exhaust rubber filtering action;
state two: at the position of＜/>The method comprises the steps of setting an exhaust abnormal state, executing active exhaust rubber filtering action and synchronously executing passive exhaust rubber filtering action;
step six: after the stirring action is finished according to the contents of the first step to the fifth step, firstly, the lower side part of the gas mixing cylinder is opened by an electric valve, and the central rotating shaft is driven by a first motor to rotate at a constant speed, so that the mixture of the base material and the fluid material which are mixed and stirred enters the lower side inside of the gas mixing cylinder along the slag discharging port and is discharged along the opening position of the lower side of the gas mixing cylinder.
The invention has the following beneficial effects:
the invention is based on the operation principle of foam asphalt regeneration, when the mixture of a base material and a fluid material is fully stirred and mixed, and the structure of a reaction cylinder is optimized, the whole stirring and mixing action is in a relatively sealed environment by sealing the lower side positions of a feed inlet, a liquid injection pipe and the gas mixing cylinder, so that the generated tail gas only enters the gas mixing cylinder along an air inlet, and the tail gas is directly filtered by a conical cap, so that the purpose is to filter and adhere viscous solid matters in the tail gas to the conical cap, or adhere to the inner wall of the gas mixing cylinder, or fall on the bottom end position of the gas mixing cylinder, thereby not only avoiding the influence of the viscous solid matters on the operation process of tail gas treatment equipment along with the discharge of the tail gas, but also remixing the adhered solid matters into the mixture of the base material and the fluid material;
on the basis, aiming at the filtering action of the conical cap, a plurality of annular scraping blades are additionally arranged on the central rotating shaft and used for scraping the viscous solid matters adhered on the gas mixing cylinder, and a sector scraping blade matched with the conical cap is additionally arranged on the annular scraping blade at the uppermost position, so that the purpose of the annular scraping blade is to scrape the viscous solid matters adhered on the conical cap;
recording interval time points of exhaust actions in the whole equipment by using a controller, and subdividing active exhaust glue filtering actions and passive exhaust glue filtering actions according to the interval time points, wherein the passive exhaust glue filtering actions are matched with the active exhaust glue filtering actions and are specifically shown in the following steps: when the interval time between every two exhaust actions is longer, high-pressure air is injected into the air cavity through the high-pressure air pipe, so that backflushing high-pressure air flow is formed, the viscous solid substances adhered on the conical cap are blown down, and the viscous solid substances are removed by combining the fan-shaped scraping blade.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a foam reclaimed asphalt mixture stirring device with a tail gas separation function;
FIG. 2 is a cut-away view of a three-layer tower component in a foam asphalt mixture stirring apparatus with tail gas separation according to the present invention;
FIG. 3 is a sectional view of a reaction cylinder part in the foam asphalt mixture stirring equipment with the tail gas separation function;
FIG. 4 is a split view of FIG. 3 in a foamed reclaimed asphalt mixture stirring apparatus with tail gas separation as provided by the present invention;
FIG. 5 is a front view of FIG. 3 in a foam asphalt mixture stirring apparatus with tail gas separation according to the present invention;
FIG. 6 is a cross-sectional view of a gas mixing cylinder component in the foam asphalt mixture stirring equipment with the tail gas separation function;
FIG. 7 is a partial cutaway view of a central spindle assembly of a foamed reclaimed asphalt mixture stirring apparatus with tail gas separation according to the present invention;
fig. 8 is a schematic structural diagram of a portion a of the foam asphalt mixture stirring apparatus with the tail gas separation function according to the present invention.
In the figure: 1. three layers of towers; 2. a feed inlet; 3. a controller; 4. a reaction cylinder; 5. a liquid injection pipe; 6. a first hub; 7. a second shaft disc; 8. a gas mixing cylinder; 9. a first motor; 10. a second motor; 11. an exhaust pipe sleeve; 12. stirring sheets; 13. an electric valve; 14. an air inlet; 15. a slag discharge port; 16. a gravity piston block; 17. a buffer spring; 18. an intake air transit plug; 19. a spiral feeding sheet; 20. a positioning head; 21. a high pressure gas pipe; 22. a spherical interface; 23. a conical cap; 24. a fan-shaped wiper blade; 25. a support frame; 26. an annular wiper blade; 27. an air cavity; 28. positioning a stop block; 29. an aeration port; 30. and a central rotating shaft.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
For the current foam asphalt recycling technology, a part of fine asphalt foam is discharged along with the tail gas, the viscosity of the asphalt foam is high, so that a great amount of solid substances are doped in the tail gas, and when the tail gas enters the treatment equipment, the operation state of the treatment equipment is seriously influenced, and the following technical contents are provided:
referring specifically to fig. 1-8, the foam asphalt mixture stirring device with tail gas separation function in this embodiment includes a three-layer tower 1, a reaction tube 4 arranged vertically is installed at a central point of a lower layer position of the three-layer tower 1, a controller 3 is installed at a middle layer position of the three-layer tower 1, a mixing tube 8 arranged vertically is rotatably installed at a central point position of the reaction tube 4, two feeding ports 2 are installed at a circumferential outer wall position of the reaction tube 4, and a liquid injection tube 5 is installed at an upper end position of the reaction tube 4;
the mixing drum 8 is positioned on the circumferential outer wall inside the reaction drum 4, a plurality of stirring sheets 12 are arranged on the circumferential outer wall, an air inlet 14 and a slag discharging opening 15 are respectively arranged on the upper side of the circumferential outer wall and the lower side of the circumferential outer wall of the mixing drum 8, an exhaust pipe sleeve 11 is rotatably arranged at the upper end of the mixing drum 8, a center rotating shaft 30 which is vertically arranged is arranged at the center point of the mixing drum 8, a gravity piston block 16, an air inlet middle rotating plug 18 and a spiral feeding sheet 19 which correspond to the inner wall of the mixing drum 8 are sequentially arranged on the center rotating shaft 30 along the direction from top to bottom, and a driving structure which corresponds to the mixing drum 8 and the center rotating shaft 30 is arranged on the three-layer tower 1;
the gravity piston block 16 is movably connected on the central rotating shaft 30, the gravity piston block 16 is positioned at the middle position of the exhaust pipe sleeve 11 and the air inlet 14, the lower end of the gravity piston block 16 is conical, the air inlet middle rotating plug 18 is fixedly connected on the inner wall position of the air mixing cylinder 8, the air inlet middle rotating plug 18 is positioned on the upper side position of the air inlet 14, the spiral feeding sheet 19 is installed on the central rotating shaft 30, the spiral feeding sheet 19 is provided with a position corresponding to the slag discharging hole 15, the spiral feeding sheet 19 is provided with a hole, the reaction cylinder 4 is provided with an electric valve 13 corresponding to the lower surface center point position of the lower side of the air mixing cylinder 8, the lower side center point of the air inlet middle rotating plug 18 is provided with a conical cap 23, a plurality of air holes are formed in the air inlet middle rotating plug 18 and the conical cap 23, and the air mixing cylinder 8 is positioned in the inner areas of the gravity piston block 16 and the air inlet middle rotating plug 18 and is provided with a clean air cavity.
The driving structure comprises a first motor 9, a second motor 10, a first shaft disk 6 and a second shaft disk 7, wherein the first shaft disk 6 is arranged at the top end position of a central rotating shaft 30, the second shaft disk 7 is arranged at the position of the outer wall of the circumference of the upper side of the reaction cylinder 4, the first motor 9 and the second motor 10 are arranged on the three-layer tower 1, a belt is arranged between the output end of the first motor 9 and the output end of the first shaft disk 6 as well as between the output end of the second motor 10 and the second shaft disk 7, a positioning head 20 is fixedly arranged at the upper side position of an exhaust pipe sleeve 11, and the positioning head 20 is arranged at the upper layer position of the three-layer tower 1.
Operation principle: after injecting the materials required in the foam asphalt regeneration into the reaction cylinder 4, the reaction cylinder 4 needs to be subjected to sealing treatment, so that the whole stirring and mixing action is in a relatively sealed environment, and when the second motor 10 drives the gas mixing cylinder 8 to rotate, the material mixture is fully mixed and stirred;
in the above process, firstly, it is required to ensure that the materials cannot flow through the preset position of the air inlet 14, the tail gas generated during stirring and mixing enters the interior of the air mixing cylinder 8 along the air inlet 14, and the tail gas is separated through the air inlet transit plug 18 and the conical cap 23, specifically, the viscous solid substances possibly existing in the tail gas are filtered out, so that the viscous solid substances are attached to the conical cap 23, or fall on the lower side position of the air mixing cylinder 8, or attach on the inner wall position of the air mixing cylinder 8, and the tail gas after separation enters the clean gas cavity, thereby achieving the purpose of tail gas separation;
in the deslagging process, the first motor 9 drives the central rotating shaft 30 to rotate, and the spiral feeding sheet 19 in the rotating process discharges the stirred materials along the lower side of the gas mixing cylinder 8, and particularly the stirred materials enter the gas mixing cylinder 8 through the deslagging port 15;
compared with the current mixing stirring equipment, the tail gas treatment structure is additionally arranged, so that the viscous solid substances are prevented from being discharged along with the tail gas, and the viscous solid substances are prevented from entering the tail gas treatment equipment.
Example two
The present embodiment is combined with the exhaust process in the first embodiment, and optimizes the following technical scheme:
the cross section of the bottom end of the inner wall of the reaction cylinder 4 is in an inverted circular truncated cone shape, the curved surface of the lower side of the slag discharging opening 15 is flush with the bottom end of the inner wall of the reaction cylinder 4, a central rotating shaft 30 is positioned on the middle part of the circumference outer wall of the air inlet middle rotating plug 18 and the spiral feeding piece 19, a plurality of supporting frames 25 are arranged, a plurality of annular scraping blades 26 are arranged on the supporting frames 25, the outer curved surface of the annular scraping blades 26 is matched with the inner wall of the air mixing cylinder 8, a fan-shaped scraping blade 24 is arranged on the annular scraping blades 26 positioned on the upper side, the inner curved surface of the fan-shaped scraping blade 24 is matched with the outer curved surface of the conical cap 23, the air inlet middle rotating plug 18 and the central rotating shaft 30 are in sliding connection, a buffer spring 17 is arranged on the central rotating shaft 30, the lower extreme of buffer spring 17 is installed in the upper surface central point position of in the air inlet rotary plug 18, the spherical interface 22 is installed in the rotation of central pivot 30 upper end central point position, install high-pressure air pipe 21 on the spherical interface 22, set up air cavity 27 in the interior position of central pivot 30 corresponding high-pressure air pipe 21, the air cavity 27 end extends to the setting position of corresponding toper cap 23, a plurality of aeration mouths 29 have been seted up on the circumference outer wall of central pivot 30 corresponding toper cap 23 position, the jet direction of a plurality of aeration mouths 29 is the downward sloping form, install location dog 28 on the circumference outer wall of central pivot 30, location dog 28 is located in the lower surface position of in the air inlet rotary plug 18.
The operation advantages include:
the advantages are as follows: when the central rotating shaft 30 rotates, firstly the annular scraping blade 26 is used for scraping viscous solid matters adhered to the inner wall of the gas mixing cylinder 8, and the fan-shaped scraping blade 24 is additionally arranged on the annular scraping blade 26 at the uppermost position, and the fan-shaped scraping blade 24 is arranged for aiming at the viscous solid matters adhered to the conical cap 23, so that the viscous solid matters are prevented from blocking the conical cap 23 to influence the gas outlet process;
the advantages are as follows: in combination with the content in the first embodiment, after the tail gas after treatment enters the clean gas cavity, the tail gas gradually rises along with the tail gas quantity to enable the air pressure in the clean gas cavity to rise, and the gravity of the gravity piston block 16 is overcome by the air pressure to enable the gravity piston block 16 to move upwards until the gravity piston block 16 moves to the position of the exhaust pipe sleeve 11 to realize the exhaust action, and similarly, when the gravity piston block 16 moves downwards to reset, the buffer spring 17 is additionally arranged firstly, so that the impact force of the gravity piston block 16 on the rotary plug 18 in the air inlet is buffered;
the method has the following advantages: the adhesive solid matter combined with the conical cap 23 may block the conical cap, the high-pressure gas is injected into the air cavity 27 through the high-pressure gas pipe 21, so that the adhesive solid matter adhered on the conical cap 23 is blown out through the high-pressure gas, and the blown adhesive solid matter is removed through the fan-shaped scraping blade 24, so that the air outlet action in the whole scheme is ensured;
the advantages are four: the third advantage is combined, wherein the high-pressure air pipe 21 is connected to the central rotating shaft 30 by the spherical joint 22, and the high-pressure air pipe 21 keeps a relatively stable state through the spherical joint 22 during the rotation of the central rotating shaft 30, and does not interfere with the rotation process of the central rotating shaft 30.
Example III
The present embodiment is combined with the operation procedure in the first embodiment, and the following operation steps are refined:
during operation of the stirring device, the stirring device comprises the following steps:
step one: injecting pavement base materials into the reaction cylinder 4 through the feed inlet 2, injecting fluid materials of foamed asphalt into the reaction cylinder 4 through the liquid injection pipe 5, then sealing the feed inlet 2 and the liquid injection pipe 5, and closing the lower opening of the gas mixing cylinder 8 through the electric valve 13, wherein the height of the mixture of the base materials and the fluid materials in the reaction cylinder 4 is not higher than that of the gas inlet 14;
step two: firstly, a second motor 10 is started to drive a gas mixing cylinder 8 to rotate, a stirring sheet 12 is used for driving a base material and a fluid material to be fully stirred, generated tail gas enters the gas mixing cylinder 8 along an air inlet 14, and the tail gas enters a clean air cavity along a conical cap 23-an air inlet middle rotary plug 18;
step three: in the second step, the viscous solid substances in the tail gas are adhered to the conical cap 23, so as to complete the gas-gel separation action of the tail gas, and the gravity piston block 16 is driven to move upwards along with the rising of the air pressure caused by the increasing of the tail gas amount in the clean air cavity until the gravity piston block 16 moves upwards to the interior of the corresponding exhaust pipe sleeve 11, and the gravity piston block 16 moves downwards to reset;
step four: in the first to third steps, the two steps of active exhaust gel filtration action and passive exhaust gel filtration action are set, and the concrete steps are as follows:
active air exhaust and glue filtering actions: in the second to third steps, the first motor 9 drives the central rotating shaft 30 to reciprocate left and right, and the rotation angle range is as follows: scraping off the viscous solid matters adhered on the conical cap 23 by using a fan-shaped scraping blade 24 at 30-55 degrees, and scraping off the viscous solid matters adhered on the inner wall of the gas mixing cylinder 8 by using an annular scraping blade 26;
passive air-exhausting and rubber-filtering action: the first motor 9 drives the central rotating shaft 30 to rotate synchronously, high-pressure air is blown into the air cavity 27 through the high-pressure air pipe 21, and the high-pressure air is blown onto the inner curved surface position of the conical cap 23 along the aeration opening 29, so that the viscous solid substances are accelerated to be blown down.
Step five: the controller 3 is used for the controller 3, and the controller 3 is composed of a time point recording module and a sub-control module, specifically as follows:
s1: firstly, the exhaust interval time point of the exhaust pipe sleeve 11 is preset by a time point recording moduleAnd the time difference of the continuous two-side exhaust action of the exhaust pipe sleeve 11 in the actual running state is collected by a time point recording module>；
S2: the time difference value acquired in the time point recording moduleSending feedback to the sub-control module, and setting the state as follows:
state one: at the position of＞/>The method comprises the steps of setting the exhaust device in an excellent exhaust state, executing active exhaust rubber filtering action and not executing passive exhaust rubber filtering action;
state two: at the position of＜/>The method comprises the steps of setting an exhaust abnormal state, executing active exhaust rubber filtering action and synchronously executing passive exhaust rubber filtering action;
step six: after the stirring action is completed according to the contents of the first to fifth steps, firstly, the lower side part of the gas mixing cylinder 8 is opened by the electric valve 13, and the central rotating shaft 30 is driven by the first motor 9 to rotate at a constant speed, so that the mixture of the base material and the fluid material which are subjected to stirring and mixing enters the lower side inside of the gas mixing cylinder 8 along the slag discharging port 15, and is discharged along the opening position of the lower side of the gas mixing cylinder 8.
The operation has the advantages that: in the active exhaust rubber filtering action, the tail gas is in a state of normally passing through the conical cap 23 and the air inlet middle rotary plug 18, and in the process, the central rotary shaft 30 needs to be used for carrying out small-range reciprocating rotation, so that the purpose is to directly scrape the viscous solid matters adhered on the conical cap 23 by the fan-shaped scraping blade 24 in the active exhaust rubber filtering action;
under long-term use, the viscous solid substance may clog the conical cap 23, which in turn causes a slow rate of entry of the exhaust gas into the clean air chamber, which in turn causes an extended exhaust time, according to which a passive exhaust gel filtration action needs to be performed, with the aim of requiring an intervention control for further exhausting the passive exhaust gel filtration action, specifically expressed in: the controller 3 records the exhaust time interval point in each two continuous processes, and feeds back whether the conical cap 23 is in a blocking state or not from the outside of the device.
To sum up: the stirring blade 12 is utilized to stir and mix the mixture of the base material and the fluid material, the whole stirring action is in a relatively sealed environment, the tail gas is caused to enter the interior of the gas mixing cylinder 8 only along the air inlet 14, the conical cap 23 is utilized to filter out and attach or fall the viscous solid matters in the mixture cylinder 8 on the premise of ensuring the passing of the tail gas, the purpose of the stirring blade is to prevent the tail gas doped with the viscous solid matters from entering the treatment equipment to influence the operation of the tail gas treatment equipment, the air pressure rising during the tail gas input is further utilized, the periodic exhaust action of the tail gas is further executed, and the exhaust action is divided into active and passive modes, wherein the purpose is that: the attached viscous solid substances are blown down, so that the active exhaust emission process is prevented from being influenced.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The foam regenerated asphalt mixture stirring equipment with the tail gas separation function comprises three layers of towers (1), and is characterized in that a reaction cylinder (4) which is vertically arranged is arranged at the central point of the lower layer position of the three layers of towers (1), a controller (3) is arranged at the middle layer position of the three layers of towers (1), a mixing cylinder (8) which is vertically arranged is rotatably arranged at the central point position of the reaction cylinder (4), two feeding ports (2) are arranged at the circumferential outer wall position of the reaction cylinder (4), and a liquid injection pipe (5) is arranged at the upper end position of the reaction cylinder (4);
the device is characterized in that a plurality of stirring sheets (12) are arranged on the circumferential outer wall of the interior of the reaction cylinder (4) of the gas mixing cylinder (8), a gas inlet (14) and a slag discharging port (15) are respectively formed in the upper side of the circumferential outer wall and the lower side of the circumferential outer wall of the gas mixing cylinder (8), an exhaust pipe sleeve (11) is rotatably arranged at the upper end of the gas mixing cylinder (8), a center rotating shaft (30) which is vertically arranged is arranged at the center point of the gas mixing cylinder (8), a gravity piston block (16), a gas inlet middle rotating plug (18) and a spiral feeding sheet (19) which correspond to the inner wall of the gas mixing cylinder (8) are sequentially arranged on the center rotating shaft (30) along the direction from top to bottom, and driving structures which correspond to the gas mixing cylinder (8) and the center rotating shaft (30) are arranged on the three-layer tower (1);
the gravity piston block (16) is movably connected to the central rotating shaft (30), the gravity piston block (16) is positioned at the middle position of the exhaust pipe sleeve (11) and the air inlet (14), the lower end of the gravity piston block (16) is conical, the air inlet middle rotating plug (18) is fixedly connected to the inner wall of the air mixing cylinder (8), the air inlet middle rotating plug (18) is positioned at the upper side of the air inlet (14), the spiral feeding sheet (19) is arranged on the central rotating shaft (30), the arrangement position of the spiral feeding sheet (19) corresponds to the slag discharging port (15), a hole is formed in the spiral feeding sheet (19), the electric valve (13) is arranged at the lower surface center point position of the reaction cylinder (4) corresponding to the lower side of the air mixing cylinder (8), the conical cap (23) is arranged at the lower center point of the air inlet middle rotating plug (18), a plurality of air holes are formed in the air inlet middle rotating plug (18) and the conical cap (23), and the air mixing cylinder (8) is positioned in the air mixing cylinder (16) and the air inlet middle rotating plug (18);
the cross section of the bottom end of the inner wall of the reaction cylinder (4) is in an inverted circular table shape, the curved surface of the lower side of the slag discharge port (15) is flush with the bottom end of the inner wall of the reaction cylinder (4), a plurality of supporting frames (25) are arranged on the middle parts of the circumferential outer walls of the rotary plug (18) and the spiral feeding sheet (19) in the air inlet, a plurality of annular scraping blades (26) are arranged on the supporting frames (25), and the outer curved surface of the annular scraping blades (26) is matched with the inner wall of the air mixing cylinder (8);
the annular scraping blade (26) positioned at the upper side is provided with a fan-shaped scraping blade (24), the inner curved surface of the fan-shaped scraping blade (24) is matched with the outer curved surface of the conical cap (23), and the conical cap (23), the air inlet rotary plug (18) and the central rotary shaft (30) are in sliding connection;
the utility model discloses a high-pressure air pump, including central pivot (30), high-pressure air pipe (21), air cavity (27) have been seted up in the inside position that central pivot (30) upper end central point position rotated and has been installed spherical interface (22), install high-pressure air pipe (21) on spherical interface (22), air cavity (27) end extension is to setting up on corresponding toper cap (23) in the inside position that central pivot (30) corresponds high-pressure air pipe (21), a plurality of aeration mouths (29) have been seted up on the circumference outer wall that central pivot (30) correspond toper cap (23) position, a plurality of the jet direction of aeration mouths (29) is the downward sloping form.
2. The foam asphalt mixture stirring device with the tail gas separation function according to claim 1, wherein the driving structure comprises a first motor (9), a second motor (10), a first shaft disc (6) and a second shaft disc (7), the first shaft disc (6) is installed at the top end position of a central rotating shaft (30), the second shaft disc (7) is installed at the position of the upper circumferential outer wall of the reaction cylinder (4) where the gas mixing cylinder (8) is located, the first motor (9) and the second motor (10) are installed on the three-layer tower (1), and a belt is arranged between the output end of the first motor (9) and the first shaft disc (6), and between the output end of the second motor (10) and the second shaft disc (7).
3. The foam asphalt mixture stirring apparatus with the tail gas separation function according to claim 1, wherein a positioning head (20) is fixedly arranged at the upper side position of the exhaust pipe sleeve (11), and the positioning head (20) is arranged at the upper layer position of the three-layer tower (1).
4. The foam asphalt mixture stirring apparatus with the tail gas separation function according to claim 1, wherein a buffer spring (17) is arranged on the central rotating shaft (30), and the lower end of the buffer spring (17) is arranged on the central point position of the upper surface of the air inlet rotary plug (18).
5. The foam asphalt mixture stirring apparatus with the tail gas separation function according to claim 1, wherein a positioning stop block (28) is arranged on the circumferential outer wall of the central rotating shaft (30), and the positioning stop block (28) is positioned on the lower surface of the air inlet rotary plug (18).
6. The foam asphalt mixture stirring device with the tail gas separation function according to any one of claims 1 to 5, wherein the stirring device comprises the following steps in the operation process:
step one: injecting pavement base materials into the reaction cylinder (4) through the feed inlet (2), injecting fluid materials of foam asphalt into the reaction cylinder (4) through the liquid injection pipe (5), then sealing the feed inlet (2) and the liquid injection pipe (5), and sealing the lower opening of the gas mixing cylinder (8) through the electric valve (13), wherein the height of the mixture of the base materials and the fluid materials in the reaction cylinder (4) is not higher than that of the gas inlet (14);
step two: firstly, a second motor (10) is started to drive a gas mixing cylinder (8) to rotate, a stirring sheet (12) is used for driving a base material and a fluid material to be fully stirred, generated tail gas enters the gas mixing cylinder (8) along an air inlet (14), and the tail gas enters a clean gas cavity along a conical cap (23) -an air inlet middle rotary plug (18);
step three: in the second step, the viscous solid substances in the tail gas are adhered to the conical cap (23), so that the gas-gel separation action of the tail gas is completed, and the gravity piston block (16) is driven to move upwards along with the rising of the air pressure caused by the increasing of the tail gas amount in the air purifying cavity until the gravity piston block (16) moves upwards to the inside of the corresponding exhaust pipe sleeve (11), and the gravity piston block (16) moves downwards to reset;
step four: in the first to third steps, the two steps of active exhaust gel filtration action and passive exhaust gel filtration action are set, and the concrete steps are as follows:
active air exhaust and glue filtering actions: in the second to third steps, the first motor (9) drives the central rotating shaft (30) to rotate left and right in a reciprocating manner, and the rotating angle range is as follows: scraping off the viscous solid matters adhered on the conical cap (23) by a fan-shaped scraping blade (24) at 30-55 degrees, and scraping off the viscous solid matters adhered on the inner wall of the gas mixing cylinder (8) by an annular scraping blade (26);
passive air-exhausting and rubber-filtering action: synchronously driving a central rotating shaft (30) to rotate by a first motor (9), blowing high-pressure air into an air cavity (27) by a high-pressure air pipe (21), and blowing the high-pressure air onto the inner curved surface of a conical cap (23) along an aeration port (29) to accelerate viscous solid substances to be blown down;
step five: the method is used for a controller (3), and the controller (3) comprises a time point recording module and a sub-control module, and specifically comprises the following steps:
s1: firstly, presetting the exhaust interval time point of an exhaust pipe sleeve (11) by a time point recording moduleAnd the time difference of the continuous two-side exhaust action of the exhaust pipe sleeve (11) under the actual running state is acquired by a time point recording module>；
S2: the time difference value acquired in the time point recording moduleSending feedback to the sub-control module, and setting the state as follows:
state one: at the position of＞/>The method comprises the steps of setting the exhaust device in an excellent exhaust state, executing active exhaust rubber filtering action and not executing passive exhaust rubber filtering action;
state two: at the position of＜/>The method comprises the steps of setting an exhaust abnormal state, executing active exhaust rubber filtering action and synchronously executing passive exhaust rubber filtering action;
step six: after the stirring action is completed according to the contents of the first to fifth steps, firstly, the lower side part of the gas mixing cylinder (8) is opened by an electric valve (13), and the central rotating shaft (30) is driven by the first motor (9) to rotate at a constant speed, so that the mixture of the base material and the fluid material which are subjected to stirring and mixing enters the lower side inside of the gas mixing cylinder (8) along the slag discharging port (15), and is discharged along the lower side opening position of the gas mixing cylinder (8).
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| CN202310827814.1A CN116537004B (en) | 2023-07-07 | 2023-07-07 | Foam regenerated asphalt mixture stirring equipment with tail gas separation function |
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| CN202310827814.1A CN116537004B (en) | 2023-07-07 | 2023-07-07 | Foam regenerated asphalt mixture stirring equipment with tail gas separation function |
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