CN111323105B - Anti-cooling asphalt metering device - Google Patents
Anti-cooling asphalt metering device Download PDFInfo
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- CN111323105B CN111323105B CN202010368512.9A CN202010368512A CN111323105B CN 111323105 B CN111323105 B CN 111323105B CN 202010368512 A CN202010368512 A CN 202010368512A CN 111323105 B CN111323105 B CN 111323105B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention relates to the technical field of asphalt metering and discloses an anti-cooling asphalt metering device which comprises a base, wherein the top of the base is fixedly connected with a supporting column, the top of the supporting column is fixedly connected with a workbench, the top of the workbench is fixedly provided with a supporting frame, the top of the workbench is fixedly connected with a circular groove seat, and the inner bottom wall of the circular groove seat is movably connected with an outer cylinder. This prevent cooling pitch metering device heats the inner tube that is equipped with pitch through the resistance wire, thereby heat the pitch of inner tube inside, thereby prevent the pitch cooling, through telescopic cylinder work, make the piston rod downstream, and drive the stripper plate and move down together, thereby extrude inside L type pipe with the pitch of inner tube inside from the left discharge gate of inner tube, and inside L type pipe entering liquid storage barrel, thereby make the pressure increase of liquid storage barrel symmetry retransmission sensor, thereby can measure pitch.
Description
Technical Field
The invention relates to the technical field of asphalt metering, in particular to an anti-cooling asphalt metering device.
Background
The economic efficiency of China keeps increasing at a high speed since the reform is opened, the traffic construction of highways is rapidly advanced, road asphalt production enterprises in China are rapidly developed, particularly, heavy traffic asphalt and modified asphalt realize qualitative leap from none to some, from small to large and from small to large, and make great contribution to road construction in China.
Asphalt is often required to be weighed when being used to ensure the accuracy of materials, while the traditional asphalt mixture weighing mode is usually realized by using an asphalt weighing hopper, and a general asphalt metering device can cause the asphalt to be cooled when the asphalt is metered; some devices measure asphalt through a weighing sensor, but asphalt is placed on the weighing sensor through a container, and a certain influence on the measurement can be caused due to the position deviation, so that the measurement is not accurate, and some measuring devices are not convenient to disassemble and clean, so a cooling-proof asphalt measuring device is needed to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a cooling-prevention asphalt metering device which has the advantages of preventing asphalt from being cooled, improving the metering accuracy, being convenient to disassemble and clean and the like, and solves the problems that asphalt is possibly cooled when the asphalt metering device meters the asphalt, and when the asphalt is placed on a weighing sensor through a container, certain influence is possibly generated on the metering due to the position deviation, so that the metering is not accurate, and the conventional metering device is not convenient to disassemble and clean.
In order to achieve the purpose, the invention provides the following technical scheme: a cooling-resistant asphalt metering device comprises a base, wherein a support column is fixedly connected to the top of the base, a workbench is fixedly connected to the top of the support column, a support frame is fixedly mounted at the top of the workbench, a circular groove seat is fixedly connected to the top of the workbench, an outer barrel is movably connected to the inner bottom wall of the circular groove seat, an inner barrel is movably connected to the inner bottom wall of the outer barrel, a resistance wire is movably sleeved on the side surface of the inner barrel, a sealing cover is connected to the inner side wall of the inner barrel in a threaded manner, a through hole is formed in the top of the sealing cover, a telescopic pipe is fixedly connected to the top of the sealing cover, a feed hopper is movably connected to the top of the telescopic pipe, a telescopic cylinder is fixedly connected to the inner top wall of the support frame, a piston rod is movably connected to the inner part of the telescopic cylinder, a fixed block is fixedly connected to the bottom of the piston rod, a movable groove is formed in the bottom of the fixed block, an extrusion plate is movably connected to the bottom of the piston rod, one end, which is far away from the telescopic cylinder, is movably connected to the inner part of the through hole, a movable block is located below the extrusion plate, a movable block is fixedly connected to the top of the movable groove, the extrusion plate, the movable block is connected to the bottom of the telescopic cylinder, and connected to a control device in a lifting control mode, and the telescopic cylinder controls the telescopic cylinder;
the top of the base is fixedly connected with a weighing sensor, the top of the weighing sensor is fixedly connected with a limiting plate, the top of the limiting plate is provided with a circular groove, the inner bottom wall of the circular groove is movably connected with a liquid storage barrel, the inner bottom wall of the liquid storage barrel is provided with a heating layer, the top of the liquid storage barrel is fixedly connected with a limiting ring, the right side of the outer barrel is provided with a slotted hole, the right side of the inner barrel is provided with a discharge port inclined obliquely upwards, the discharge port is provided with an electromagnetic valve, a sealable filling port is arranged on the L-shaped pipe body, and the L-shaped pipe body is an inverted L-shaped pipe body consisting of an inclined section and a vertical section, the inner part of the discharge port is in threaded connection with the inclined section of the L-shaped pipe, the bottom of the telescopic pipe is fixedly connected with a ring piece, the inner part of the telescopic pipe is fixedly connected with a hanging rope, one end, away from the telescopic pipe, of the hanging rope is fixedly connected with a sealing plug, the inclined section of the L-shaped pipe is movably connected with the inner part of the slotted hole, one end, away from the discharge port, of the L-shaped pipe, namely a vertical section, is positioned in the liquid storage barrel, the top of the sealing plug is movably inserted into the inner side wall of the bottom end of the telescopic pipe, and the bottom of the feed hopper is in threaded connection with the inner side wall of the top end of the telescopic pipe;
the signal output end of the weighing sensor is connected to a differential calculation module, the differential calculation module is connected to a timing module, the timing module is connected to the controller, in the process that asphalt filled into the inner cylinder is heated and melted through a resistance wire, an electromagnetic valve on the discharge port is kept closed, reference liquid is injected through a filling port in a pipe body of the L-shaped pipe, the density of the reference liquid is smaller than that of the asphalt liquid and is mutually insoluble with the asphalt liquid, the amount of the filled reference liquid is equal to the volume of an inner space of an inclined section of the L-shaped pipe, the electromagnetic valve on the discharge port is opened after the asphalt filled into the inner cylinder is completely melted, the telescopic cylinder is controlled by the controller to descend at a constant speed V until the bottom of the extrusion plate body is attached to the inner wall of the bottom of the inner cylinder body, in the descending process, the timing module conducts subsection timing in a segmented mode based on the output value and the variation value of the differential calculation module, and the controller calculates the volume and the mass of the asphalt to be measured according to the segmented timing time signal, the descending speed V of the telescopic cylinder, the known inner volume of the inclined section of the L-shaped pipe and the cross-shaped pipe.
The utility model discloses a liquid storage tank, including workstation, support frame, liquid storage bucket, limiting ring, circular groove seat, big round hole has been seted up at the top of workstation, the inside activity grafting of liquid storage bucket and big round hole, the spacing ring is located the top of workstation, the support frame is located the left side of circular groove seat, circular groove seat is located the left side of big round hole.
The weighing sensor is replaced by a pressure sensor.
Compared with the prior art, the invention provides an anti-cooling asphalt metering device which has the following beneficial effects:
1. according to the invention, through matching of reference liquids with different densities and without being integrated with each other with the differential timing module, a common pressure sensor is adopted for replacement, the operation of subtracting the weight of the weighing cylinder in the traditional method is not needed, an accurate weight sensor is not needed, and the defect that measurement errors are caused when the reference liquids are retained in a transmission interface is eliminated.
2. This anti-cooling pitch metering device heats the inner tube that is equipped with pitch through the resistance wire, thereby heat the inside pitch of inner tube, thereby prevent the pitch cooling, through telescopic cylinder work, make the piston rod downstream, and drive the stripper plate together downstream, thereby extrude L type intraduct with the inside pitch of inner tube from the left discharge gate of inner tube, and inside entering the liquid storage bucket along L type intraduct, thereby make the pressure increase of liquid storage bucket symmetry retransmission sensor, thereby can measure pitch.
3. This anti-cooling pitch metering device carries on spacingly to the stock solution bucket through limiting plate and circular recess, prevents that spacing bucket from removing on weighing sensor, and leads to the weighing sensor measurement inaccuracy to the stop collar at big round hole and stock solution bucket top through the workstation top plays limiting displacement to the stock solution bucket, thereby has improved the accuracy of the device when measuring pitch.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a cross-sectional view of the inner barrel construction of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
fig. 5 is a sectional view of the structure of the liquid storage barrel of the invention.
Wherein: 1. a base; 2. a support pillar; 3. a work table; 4. a support frame; 5. a circular groove seat; 6. an outer cylinder; 7. an inner barrel; 8. a resistance wire; 9. a sealing cover; 10. a through hole; 11. a telescopic pipe; 12. a feed hopper; 13. a telescopic cylinder; 14. a piston rod; 15. a fixed block; 16. a movable groove; 17. a pressing plate; 18. a weighing sensor; 19. a limiting plate; 20. a circular groove; 21. a liquid storage barrel; 22. a heating layer; 23. a limiting ring; 24. a slot; 25. a discharge port; 26. an L-shaped pipe; 27. a ring sheet; 28. hanging a rope; 29. and (4) sealing the plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a cooling-resistant asphalt metering device comprises a base 1, a supporting column 2 is fixedly connected to the top of the base 1, a workbench 3 is fixedly connected to the top of the supporting column 2, a supporting frame 4 is fixedly installed at the top of the workbench 3, a circular groove seat 5 is fixedly connected to the top of the workbench 3, an outer cylinder 6 is movably connected to the inner bottom wall of the circular groove seat 5, an inner cylinder 7 is movably connected to the inner bottom wall of the outer cylinder 6, a resistance wire 8 is movably sleeved on the side surface of the inner cylinder 7, a sealing cover 9 is in threaded connection with the inner side wall of the inner cylinder 7, a through hole 10 is formed in the top of the sealing cover 9, a telescopic pipe 11 is fixedly connected to the top of the sealing cover 9, a feed hopper 12 is movably connected to the top end of the telescopic cylinder 11, a telescopic cylinder 13 is fixedly connected to the inner top wall of the supporting frame 4, a piston rod 14 is movably connected to the inside of the telescopic cylinder 13, a fixed block 15 is fixedly connected to the bottom of the piston rod 14, a movable groove 16 is formed in the bottom of the fixed block 15, an extrusion plate 17 is movably connected to the bottom of the telescopic cylinder 13, a lifting control block 17 is connected to the telescopic cylinder 17, and a lifting control block 17 is connected to the telescopic cylinder 17;
a weighing sensor 18 is fixedly connected to the top of the base 1, a limiting plate 19 is fixedly connected to the top of the weighing sensor 18, a circular groove 20 is formed in the top of the limiting plate 19, a liquid storage barrel 21 is movably connected to the inner bottom wall of the circular groove 20, a heating layer 22 is arranged on the inner bottom wall of the liquid storage barrel 21, a limiting ring 23 is fixedly connected to the top of the liquid storage barrel 21, a slotted hole 24 is formed in the right side of the outer barrel 6, an obliquely and upwardly inclined discharge hole 25 is formed in the right side of the inner barrel 7, an electromagnetic valve is arranged on the discharge hole 25, a sealable filling hole is formed in the body of the L-shaped tube 26, the body of the L-shaped tube 26 is an inverted L-shaped tube composed of an inclined section and a vertical section, the inner part of the discharge hole 25 is in threaded connection with an inclined section of the L-shaped tube 26, a ring plate 27 is fixedly connected to the bottom of the L-shaped tube 11, a hanging rope 28 is fixedly connected to the inside of the extension tube 11, a sealing plug 29 is fixedly connected to the inclined section of the L-shaped tube 26 in movable connection with the inside of the slotted hole 24, one end of the L-shaped tube 26, which the end is far from the discharge hole 25, i.e., the vertical section is located inside the liquid storage barrel 21, the top of the extension tube, the extension tube 29 is in threaded connection with the inner side wall of the telescopic tube 12, and the inner side wall of the telescopic tube 11;
the signal output end of the weighing sensor 18 is connected to a differential calculation module, the differential calculation module is connected to a timing module, the timing module is connected to the controller, in the process that asphalt filled into the inner cylinder 7 is heated and melted through the resistance wire 8, the electromagnetic valve on the discharge port 25 is kept closed, reference liquid is injected through a filling port in the pipe body of the L-shaped pipe 26, the density of the reference liquid is smaller than that of the asphalt liquid and is mutually insoluble with the asphalt liquid, the amount of the injected reference liquid is equal to the volume of the inner space of the inclined section of the L-shaped pipe 26, the electromagnetic valve on the discharge port 25 is opened after the asphalt filled into the inner cylinder 7 is completely melted, the telescopic cylinder 13 is controlled by the controller to descend at a constant speed V until the bottom of the plate body of the extrusion plate 17 is tightly attached to the inner wall of the bottom of the inner cylinder 7, in the descending process, the timing module conducts subsection timing based on the output value and the change value of the differential calculation module, and the controller calculates the volume and the mass of the asphalt to be measured according to the subsection timing time signal, the descending speed V of the known inner volume of the inclined section of the L-shaped pipe 13, the known inner volume of the inclined section of the L-shaped pipe 26 and the cross-shaped pipe 7.
Big round hole has been seted up at the top of workstation 3, stock solution bucket 21 is pegged graft with the inside activity in big round hole, spacing ring 23 is located the top of workstation 3, support frame 4 is located the left side of circular groove seat 5, circular groove seat 5 is located the left side of big round hole.
The load cell 18 is replaced with a pressure sensor.
The resistance wire 8 is movably connected with the inner side wall of the outer cylinder 6, the inner side wall of the inner cylinder 7 is in threaded connection with a sealing cover 9, the sealing cover 9 is positioned at the top of the inner cylinder 7, a sealing ring is arranged between the sealing cover 9 and the inner cylinder 7, the sealing effect is improved, external gas is prevented from entering the inner cylinder 7, the top of the sealing cover 9 is provided with a through hole 10, the top of the sealing cover 9 is fixedly connected with a telescopic pipe 11, when an extrusion plate 17 moves downwards through the telescopic pipe 11, the telescopic pipe 11 is lengthened, the bottom end of the telescopic pipe 11 moves downwards along with the extrusion plate 17, the top end of the telescopic pipe 11 is movably connected with a feed hopper 12, the inner top wall of the support frame 4 is fixedly connected with a telescopic cylinder 13, the inner part of the telescopic cylinder 13 is movably connected with a piston rod 14, and the bottom of the piston rod 14 is fixedly connected with a fixing block 15, one end of the piston rod 14 far away from the telescopic cylinder 13 is movably inserted into the through hole 10, the fixed block 15 is located below the sealing cover 9, a movable groove 16 is formed in the bottom of the fixed block 15, the bottom of the fixed block 15 is movably connected with an extrusion plate 17, a movable block is fixedly connected to the top of the extrusion plate 17 and is movably connected with the inside of the movable groove 16, the bottom end of the telescopic pipe 11 penetrates through the top of the extrusion plate 17 and the bottom of the extended extrusion plate 17, a ring plate 27 is fixedly connected with the bottom of the extrusion plate 17, the side surface of the telescopic pipe 11 is fixedly connected with the sealing cover 9, and the ring plate 27 at the bottom of the telescopic pipe 11 is fixedly connected with the extrusion plate 17, so that the sealing cover 9 is driven to rotate together with the extrusion plate 17, and the movable block at the top of the extrusion plate 17 rotates in the movable groove 16.
Base 1's top fixedly connected with weighing sensor 18, weighing sensor 18's top fixedly connected with limiting plate 19, circular recess 20 has been seted up at limiting plate 19's top, circular recess 20's interior diapire swing joint has liquid storage bucket 21, the interior diapire of liquid storage bucket 21 is provided with zone of heating 22, the top fixedly connected with spacing ring 23 of liquid storage bucket 21, the diameter of spacing ring 23 is greater than the diameter of liquid storage bucket 21, slotted hole 24 has been seted up on the right side of urceolus 6, discharge gate 25 has been seted up on the right side of inner tube 7, the inside thread connection of discharge gate 25 has L type pipe 26, be provided with the sealing washer between discharge gate 25 and the L type pipe 26, the leakproofness has been increased, prevent that the pitch raw materials from spilling, the inside swing joint of L type pipe 26 and slotted hole 24, the one end that discharge gate 25 was kept away from to L type pipe 26 is located the inside of liquid storage bucket 21, the pitch raw materials passes through the extrusion of stripper plate 17, make inside part of pitch raw materials pass through L type pipe 26 and get into inside of liquid storage bucket 21, the bottom fixedly connected with ring piece 27 of flexible pipe 11, the inside fixedly connected with hanging rope 28 of flexible pipe 28, hang rope 28, the one end fixedly connected with plug-in the bottom of flexible pipe 12 of flexible pipe bottom of flexible pipe 11 around of plug-in the plug-in flexible pipe 29, the plug-in the bottom of flexible pipe 11 is even distribution.
When in use, the inner cylinder 7 is heated by the resistance wire 8, then asphalt raw materials are poured into the feed hopper 12 and flow into the telescopic pipe 11 from the feed hopper 12, and the asphalt raw materials impact downwards in the telescopic pipe 11 to break the sealing plug 29 at the bottom end of the telescopic pipe 11, so that the asphalt raw materials enter the inner cylinder 7, and the inner cylinder 7 is heated by the resistance wire 8, in the process that the asphalt filled into the inner cylinder 7 is heated and melted by the resistance wire 8, the electromagnetic valve on the discharge hole 25 is kept closed, and reference liquid is injected through the injection hole on the pipe body of the L-shaped pipe 26, the density of the reference liquid is less than that of the asphalt liquid and the reference liquid is not dissolved into the asphalt liquid, the volume of the reference liquid of filling equals the inner space volume of the slope section of L type pipe 26, through sealed lid 9 and inner tube 7 threaded connection, prevent that external gas from getting into inside the inner tube 7, when the inside pitch raw materials of inner tube 7 is full soon, thereby upwards hold up sealing plug 29, thereby make sealing plug 29 reenter the inside of flexible pipe 11, wait to fill into and open the electromagnetic valve on the discharge gate 25 after the pitch in the inner tube 7 melts completely, and through controller control telescopic cylinder 13 with speed V at the uniform velocity decline until the bottom of stripper plate 17 plate body pastes tight inner wall of inner tube 7 barrel bottom, should descend the in-process and divide into several stages, the first stage: the telescopic cylinder 13 works to enable the piston rod 14 to move downwards at a constant speed and drive the extrusion plate 17 to move downwards together, the movement drives the reference liquid to enter the vertical section of the L-shaped pipe 26 from the inclined section of the L-shaped pipe 26 and then fall into the liquid storage barrel 21, then the output pressure signal is sensed by the weighing sensor 18, the pressure signal is generated, the output of the differential module in the process is a first constant value which is in direct proportion to the density of the reference liquid, and the second stage is that: the melted asphalt begins to flow into the liquid storage barrel 21, at the moment, the output of a pressure signal through the differential module is a second constant value which is proportional to the liquid density of the asphalt, the density of the asphalt is different from that of the reference liquid, the timing module senses the change of the output value of the differential module, namely the intersection point of the first constant value and the second constant value, the timing is started until the timing is finished when the bottom of the plate body of the extrusion plate 17 is tightly attached to the inner wall of the bottom of the inner barrel 7, the time is T, the volume of the asphalt is the product of V T S and S plus the known internal volume of the inclined section of the L-shaped pipe 26, wherein S is the cross sectional area of the barrel of the inner barrel 7; in addition, since the triggering of the timing signal depends on the differential value of the weighing cell 18, the pressure value does not need to be obtained by accurate metering, so that a common pressure sensor can be adopted instead of the pressure sensor, the operation of subtracting the weight of the weighing cylinder per se is not needed as in the prior art, and an accurate weight sensor is not needed.
After the asphalt is measured, the device needs to be cleaned, the L-shaped pipe 26 comes out from the discharge port 25 by rotating the L-shaped pipe 26, the L-shaped pipe 26 is separated from the inner cylinder 7, the L-shaped pipe 26 can be taken out from the inside of the slotted hole 24, the liquid storage barrel 21 can also move upwards from the inside of a large round hole at the top of the workbench 3, the liquid storage barrel 21 is taken out for cleaning, then the sealing cover 9 is rotated by rotating the sealing cover 9, the sealing cover 9 and the inner cylinder 7 rotate, the extrusion plate 17 and the fixed block 15 rotate, the sealing cover 9 and the inner cylinder are separated, the piston rod 14 moves upwards by the telescopic cylinder 13, the extrusion plate 17 is taken out from the inside of the inner cylinder 7, the outer cylinder 6 is taken out from the circular slot seat 5, the inner cylinder 7 is taken out from the outer cylinder 6, and the inside of the inner cylinder 7 is cleaned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides an anti-cooling pitch metering device, includes base (1), its characterized in that: the top of the base (1) is fixedly connected with a support column (2), the top of the support column (2) is fixedly connected with a workbench (3), the top of the workbench (3) is fixedly provided with a support frame (4), the top of the workbench (3) is fixedly connected with a circular groove seat (5), the inner bottom wall of the circular groove seat (5) is movably connected with an outer barrel (6), the inner bottom wall of the outer barrel (6) is movably connected with an inner barrel (7), the side surface of the inner barrel (7) is movably sleeved with a resistance wire (8), the inner side wall of the inner barrel (7) is in threaded connection with a sealing cover (9), the top of the sealing cover (9) is provided with a through hole (10), the top of the sealing cover (9) is fixedly connected with a telescopic pipe (11), the top end of the telescopic pipe (11) is movably connected with a feed hopper (12), the inner top wall of the support frame (4) is fixedly connected with a telescopic cylinder (13), the inner part of the telescopic cylinder (13) is movably connected with a piston rod (14), the bottom of the piston rod (14) is fixedly connected with a fixed block (15), the bottom of the fixed block (15) is provided with a movable groove (16), the bottom of the fixed block (15) is connected with an extrusion plate (17), and one end of the piston rod (10) is far away from the through hole (13) and the through hole (13), the fixed block (15) is positioned below the sealing cover (9), the top of the extrusion plate (17) is fixedly connected with a movable block, the movable block is movably connected with the inside of a movable groove (16), the bottom end of the telescopic pipe (11) penetrates through the top of the extrusion plate (17) and the bottom of the extended extrusion plate (17), the telescopic cylinder (13) is connected to a controller, and the controller controls the telescopic cylinder (13) to lift in a constant speed mode;
the top of the base (1) is fixedly connected with a weighing sensor (18), the top of the weighing sensor (18) is fixedly connected with a limiting plate (19), a circular groove (20) is formed in the top of the limiting plate (19), a liquid storage barrel (21) is movably connected with the inner bottom wall of the circular groove (20), a heating layer (22) is arranged on the inner bottom wall of the liquid storage barrel (21), a limiting ring (23) is fixedly connected with the top of the liquid storage barrel (21), a slotted hole (24) is formed in the right side of an outer barrel (6), a discharge hole (25) which inclines upwards is formed in the right side of an inner barrel (7), an electromagnetic valve is arranged on the discharge hole (25), a sealable filling port is arranged on a pipe body of an L-shaped pipe (26), the pipe body of the L-shaped pipe (26) is an L-shaped inverted L-shaped pipe consisting of an inclined section and a vertical section, the inner thread of the discharge hole (25) is connected to the inclined section of the L-shaped pipe (26), a ring sheet (27) is fixedly connected with the bottom of the telescopic pipe (11), the ring sheet (27) is fixedly connected with the bottom of an extrusion plate (17), the telescopic pipe (11) is fixedly connected with a rope (28), one end of a sealing plug (29) which is connected with the movable rope (28), one end, far away from the discharge hole (25), of the L-shaped pipe (26), namely the vertical section is positioned in the liquid storage barrel (21), the top of the sealing plug (29) is movably inserted into the inner side wall at the bottom end of the telescopic pipe (11), and the bottom of the feed hopper (12) is in threaded connection with the inner side wall at the top end of the telescopic pipe (11);
the signal output end of the weighing sensor (18) is connected to a differential calculation module, the differential calculation module is connected to a timing module, the timing module is connected to the controller, in the process that asphalt filled into the inner barrel (7) is heated and melted through a resistance wire (8), an electromagnetic valve on the discharge port (25) is kept closed, reference liquid is injected through a filling port on a pipe body of the L-shaped pipe (26), the density of the reference liquid is smaller than that of the asphalt liquid and the reference liquid is not dissolved into the asphalt liquid, the amount of the reference liquid is equal to the volume of an inner space of an inclined section of the L-shaped pipe (26), after the asphalt filled into the inner barrel (7) is completely melted, the electromagnetic valve on the discharge port (25) is opened, the telescopic cylinder (13) is controlled to descend at a constant speed V through the controller until the bottom of a plate body of the extrusion plate (17) is tightly attached to the inner wall of the bottom of the inner barrel (7), in the descending process, the timing module conducts subsection timing based on the output value and the change value of the differential calculation module, and the controller calculates the volume of the asphalt to be measured by subsection according to the subsection timing time signal, the descending speed V of the telescopic cylinder (13), the known cross-section of the inner barrel (26), the cross-section of the inner barrel (26) of the L-shaped pipe (7) and the cross-shaped pipe;
the descending process is divided into several stages, namely a first stage: the piston rod (14) moves downwards at a constant speed through the work of the telescopic cylinder (13), the extrusion plate (17) is driven to move downwards together, the movement drives the reference liquid to enter a vertical section of the L-shaped pipe (26) from an inclined section of the L-shaped pipe (26) and then fall into the liquid storage barrel (21), then an output pressure signal is sensed by the weighing sensor (18), the pressure signal is generated, the output of the differential module in the process is a first constant value which is in direct proportion to the density of the reference liquid until the reference liquid completely flows out, and in the second stage: the melted asphalt starts to flow into the liquid storage barrel (21), the output of a pressure signal passing through the differential module is a second constant value which is proportional to the liquid density of the asphalt, the second constant value is different from the first constant value due to the fact that the asphalt density is different from the reference liquid density, timing is started when the timing module senses the change of the output value of the differential module, namely the intersection point of the first constant value and the second constant value, timing is finished until the bottom of the plate body of the extrusion plate (17) is attached to the inner wall of the bottom of the inner barrel (7), the time is T, the volume of the asphalt is the product of V T S and the known inner volume of the inclined section of the L-shaped pipe (26), and S is the cross sectional area of the barrel of the inner barrel (7).
2. A cooling-resistant asphalt metering device as defined in claim 1, wherein: big round hole has been seted up at the top of workstation (3), stock solution bucket (21) are pegged graft with the inside activity of big round hole, spacing ring (23) are located the top of workstation (3), support frame (4) are located the left side of circular groove seat (5), circular groove seat (5) are located the left side of big round hole.
3. A cooling-resistant asphalt metering device as defined in claim 1, wherein: the load cell (18) is replaced by a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010368512.9A CN111323105B (en) | 2020-05-01 | 2020-05-01 | Anti-cooling asphalt metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010368512.9A CN111323105B (en) | 2020-05-01 | 2020-05-01 | Anti-cooling asphalt metering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111323105A CN111323105A (en) | 2020-06-23 |
| CN111323105B true CN111323105B (en) | 2023-03-28 |
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| CN120270810B (en) * | 2025-06-06 | 2025-08-05 | 莱芜金山矿产资源有限公司 | Storage equipment and process for producing iron fine powder |
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| US9878651B2 (en) * | 2014-04-07 | 2018-01-30 | Quickthree Solutions Inc. | Vertically oriented transportable container with improved stability |
| CN204649289U (en) * | 2015-04-13 | 2015-09-16 | 重庆鑫路捷科技有限公司 | Pitch automatic weighing equipment |
| CN206056751U (en) * | 2016-09-28 | 2017-03-29 | 山西省交通科学研究院 | A kind of heated bitumen self-measuring device |
| CN109251760B (en) * | 2018-11-06 | 2024-03-05 | 长沙市路盛仪器设备有限公司 | Automatic filling device for laboratory asphalt |
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Effective date of registration: 20230113 Address after: 300450 380 meters north of the village committee of liutangzhuang village, Zhongtang Town, Binhai New Area, Tianjin Applicant after: Tianjin haikuo Tiantong Chemical Co.,Ltd. Address before: No.52, Shihua Road, Zhengzhou, Henan 450000 Applicant before: Yao Yingli |
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