CN218688488U - Cold regenerating unit of road surface pitch - Google Patents
Cold regenerating unit of road surface pitch Download PDFInfo
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- CN218688488U CN218688488U CN202222803870.5U CN202222803870U CN218688488U CN 218688488 U CN218688488 U CN 218688488U CN 202222803870 U CN202222803870 U CN 202222803870U CN 218688488 U CN218688488 U CN 218688488U
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Abstract
The application discloses a pavement asphalt cold regeneration device, which comprises a stirring barrel, wherein a barrel cover is covered at the topmost position of the stirring barrel, the barrel cover is connected with a feeding pipe in a penetrating manner, and one side of the bottom of the stirring barrel is connected with a discharging pipe in a penetrating manner; the stirring barrel is of a double-layer structure, a closed space is formed between an inner layer and an outer layer of the double-layer structure, and a heating pipe is placed in the closed space; a rotating rod is arranged in the stirring barrel, one end of the rotating rod is rotatably arranged on the barrel cover, the rotating rod is provided with a plurality of stirring rods, one ends of the stirring rods are fixedly connected with the rotating rod, a semiconductor refrigerating sheet is arranged in the rotating rod, the stirring barrel is also provided with a driving piece for driving the rotating rod to rotate, and the stirring barrel is coupled with a temperature control circuit for controlling the temperature in the barrel; this application has the temperature and the output temperature signal that can detect the emulsified asphalt in the agitator at any time, has realized the effect of heating or cooling for the agitator automatically.
Description
Technical Field
The application relates to the technical field of pavement asphalt cold regeneration, in particular to a pavement asphalt cold regeneration device.
Background
The cold regenerating device for asphalt pavement is a high-efficiency and multipurpose construction machine. The method is mainly used for milling and planing the asphalt concrete pavement and regenerating the old asphalt pavement after adding materials such as asphalt, water and the like. It can also be used for on-site mixing operation of stable soil on base course and bottom course of highway, urban and rural road, airport, wharf and parking lot.
The existing asphalt cold recycling device adopts milling, digging and other modes to obtain old asphalt milling mixture from an asphalt pavement, emulsified asphalt needs to be prepared in advance, an asphalt tank filled with the emulsified asphalt is fixed on a cold recycling machine, the milling mixture and the emulsified asphalt are mixed, and then the mixture is paved back to the pavement in a paving and rolling mode; the storage temperature range of the emulsified asphalt is 10-85 ℃, and if the temperature is too high or too low, the emulsified quality of the asphalt is affected, and the quality of the paved pavement is further affected.
In view of the above-mentioned related technologies, the inventors believe that the storage temperature of the emulsified asphalt needs to be strictly controlled and sufficiently stirred during the recycling process of the asphalt.
SUMMERY OF THE UTILITY MODEL
In order to keep the storage temperature of emulsified asphalt, the application provides a cold regenerating unit of road surface pitch.
The application provides a cold regenerating unit of road surface pitch adopts following technical scheme:
a pavement asphalt cold regeneration device comprises a stirring barrel, wherein a barrel cover is covered at the topmost position of the stirring barrel, the barrel cover is connected with a feeding pipe in a penetrating manner, and the bottom of one side of the stirring barrel is connected with a discharging pipe in a penetrating manner; the stirring barrel is of a double-layer structure, a closed space is formed between an inner layer and an outer layer of the double-layer structure, and a heating pipe is placed in the closed space; the inside of agitator is provided with the dwang, the one end rotary type of dwang is installed the bung, the dwang is provided with a plurality of puddlers, the one end and the dwang fixed connection of puddler, the dwang embeds there is the semiconductor refrigeration piece, the agitator still is provided with and is used for the drive dwang pivoted driving piece, the temperature control circuit who is used for controlling the interior temperature of bucket is coupled to the agitator, temperature control circuit includes: the temperature sensing module, the signal comparison module, the heating switch module and the cooling switch module are arranged in the shell;
the output end of the temperature sensing module is coupled with the input end of the signal comparison module, and the temperature sensing module is used for sensing the temperature change in the stirring barrel and outputting a temperature signal to the input end of the signal comparison module;
the signal comparison module comprises a first output end and a second output end, the first output end is coupled with the input end of the cooling switch module, and the second output end is coupled with the input end of the heating switch module; the signal comparison module is provided with a first temperature threshold signal and a second temperature threshold signal, the first temperature threshold signal is greater than the second temperature threshold signal, and the signal comparison module is used for outputting a comparison signal to the cooling switch module when the temperature signal is greater than the first temperature threshold signal and outputting the comparison signal to the heating switch module when the temperature signal is less than the second temperature threshold signal;
the output end of the cooling switch module is coupled to a power supply loop of the semiconductor refrigerating sheet, and the cooling switch module is used for controlling the semiconductor refrigerating sheet to start or stop refrigerating when receiving the comparison signal; the output end of the heating switch module is coupled to a power supply loop of the heating pipe, and the heating switch module is used for controlling the heating pipe to start heating or stop heating when receiving the comparison signal.
By adopting the technology, when asphalt emulsification is carried out, emulsified asphalt is loaded into the stirring barrel in advance, old asphalt is poured into the stirring barrel from the feeding pipe, water and other raw materials are added, the heating pipe and the semiconductor refrigerating sheet are connected through signals, the driving piece is started, the rotating rod drives the stirring rod to rotate, and asphalt mixture is fully stirred;
the temperature sensing module detects the temperature of the emulsified asphalt in the stirring barrel and outputs a temperature signal, the signal comparison module simultaneously outputs a comparison signal to the heating switch module and the cooling switch module, and the signal comparison module receives the temperature signal and compares the temperature signal with the first temperature threshold signal and the second temperature threshold signal. When the temperature signal is greater than the first temperature threshold value signal, the heating switch module is not conducted, the cooling switch module is connected with a power-on loop of the semiconductor refrigeration sheet, the semiconductor refrigeration sheet is powered on for refrigeration, and the semiconductor refrigeration sheet is used for cooling the asphalt mixture;
when the temperature signal is smaller than the second temperature threshold value signal, the cooling switch module is not conducted, the heating switch module is connected with an electrifying loop of the heating pipe, the heating pipe starts to heat, and the heating pipe heats the asphalt mixture;
when the temperature of the asphalt mixture is between the first temperature threshold signal and the second temperature threshold signal, the signal comparison module outputs a comparison signal to the heating switch module and the cooling switch module, and the heating switch module and the cooling switch module are not conducted at the moment; after the mixture is fully and uniformly stirred, conveying the asphalt mixture out of a discharge pipe, wherein the asphalt mixture is used for paving a pavement;
through setting up temperature-sensing module, can detect the temperature and the output temperature signal of the emulsified asphalt in the agitator at any time, carry out the signal comparison according to signal comparison module again, realized the function of heating or cooling for the agitator automatically, guaranteed emulsified asphalt at suitable temperature range to the emulsification quality of pitch has been ensured, the effect of making the road surface lay pitch is better.
Preferably, the temperature sensing module comprises a temperature sensor, the temperature sensor is fixed on the rotating rod, and the temperature sensor is used for detecting the temperature change condition of the stirring barrel and outputting a temperature signal to the signal comparison module.
By adopting the technology, when asphalt emulsification is carried out, old asphalt and emulsified asphalt are placed in the stirring barrel, the temperature of the asphalt mixture in the barrel is detected by using the temperature sensor, and the temperature sensor sends a temperature signal to the signal comparison module, so that the heating pipe or the semiconductor refrigerating sheet is controlled to be electrified, the asphalt mixture is heated or cooled, and the asphalt mixture is in a proper temperature range; set up temperature sensor, it is more convenient and high-efficient to detect bituminous mixture's temperature.
Preferably, the puddler includes heating puddler and cooling puddler, the heating puddler embeds there is the electrothermal tube, the cooling puddler embeds there is cold guide block, the electrothermal tube establish ties in the power supply circuit of heating pipe, cold guide block establish ties in the power supply circuit of semiconductor refrigeration piece.
By adopting the technology, the electric heating tube accelerates the temperature rise of the asphalt mixture during heating; when the temperature is reduced, the cooling block accelerates the temperature reduction of the asphalt mixture; the electric heating pipe and the cold conducting block are simultaneously arranged in the stirring rod, so that the temperature of the asphalt mixture is more uniform.
Preferably, the signal comparison module includes a first signal comparison module and a second signal comparison module, the first signal comparison module includes a comparator N1 and a resistor R1, a first signal input end of the comparator N1 is coupled to the output end of the temperature sensor, a second signal input end of the comparator N1 is coupled to one end of the resistor R1, the other end of the resistor R1 is coupled to a first temperature threshold signal, and a signal output end of the comparator N1 is coupled to the input end of the temperature reduction switch module; the second signal comparison module comprises a comparator N2 and a resistor R2, a first signal input end of the comparator N2 is coupled to the temperature sensor, a second signal input end of the comparator N2 is coupled to one end of the resistor R2, the other end of the resistor R2 is coupled to a second temperature threshold signal, and a signal output end of the comparator N2 is coupled to an input end of the heating switch module.
By adopting the technology, because the sensitivity of the comparator N1 and the comparator N2 is high, the temperature signal input by the first signal input end of the comparator N1, the high level is input by the first signal input end of the comparator N1, the low level is input by the second signal input end of the comparator N1, when the temperature signal is greater than the first temperature threshold value signal, the input of the first signal input end of the comparator N1 is greater than the input of the second signal input end of the comparator N1, the high level is output by the output end of the comparator N1, and the comparison signal is output to the cooling switch module by the signal comparison module; thereby outputting a comparison signal to inform the cold guide block and the semiconductor refrigerating sheet to start or stop refrigerating, and realizing the cooling of the asphalt mixture;
at the moment, a temperature signal input by a first signal input end of the comparator N2, a high level input by a first signal end of the comparator N2, a low level input by a second signal end of the comparator N2, a higher level input by the first signal input end of the comparator N2 than the input by the second signal input end of the comparator N2, a high level output by an output end of the comparator N2, a comparison signal output by the signal comparison module to the temperature reduction switch module, and the temperature reduction switch module is not conducted;
when the temperature signal is smaller than the second temperature threshold signal, the input of the first signal input end of the comparator N1 is smaller than the input of the second signal input end of the comparator N1, the output end of the comparator N1 outputs a low level, the signal comparison module outputs a comparison signal to the heating switch module, and the heating switch module is not conducted at the moment;
at the moment, the temperature signal input by the first signal input end of the comparator N2, the input of the first signal input end of the comparator N2 is smaller than the input of the second signal input end of the comparator N2, the output end of the comparator N2 outputs low level, and the signal comparison module outputs a comparison signal to the cooling switch module; thereby outputting a comparison signal to inform the electric heating pipe and the heating pipe to heat or stop heating, and realizing the heating of the asphalt mixture;
the comparator N1 and the comparator N2 are arranged, and the heating switch module and the cooling switch module are convenient to control according to the temperature signal output by the temperature sensor.
Preferably, the cooling switch module includes a transistor Q1 and a relay KM1, the relay KM1 includes a relay coil KM1-1 and a normally open contact switch KM1-2, a base of the transistor Q1 is coupled to the signal output terminal of the comparator N1, a collector of the transistor Q1 is coupled to the power supply after being connected in series with the relay coil KM1-1, and an emitter of the transistor Q1 is grounded; the normally open contact switch KM1-2 is connected in series in a power supply loop of the semiconductor refrigeration sheet and the cold guide block.
By adopting the technology, when the base electrode of the triode Q1 receives a comparison signal output by the comparator N1, the base electrode is converted from a low level to a high level and outputs a cooling switch signal to conduct a power supply loop of the cold conducting block and the semiconductor refrigerating sheet, the triode Q1 is conducted, a coil of the relay KM1 is electrified, and at the moment, the normally open contact switch KM1-1 of the relay KM1 is switched to a closed state from a disconnected state, so that the power supply loop of the cold conducting block and the semiconductor refrigerating sheet is conducted, the cold conducting block and the semiconductor refrigerating sheet are electrified to start refrigerating, and the refrigeration control of conducting the cold conducting block and the semiconductor refrigerating sheet is realized;
when the comparator N1 outputs a low level signal, the base input low level of the triode Q1 is in a disconnected state, the coil of the relay KM1 is powered off, and the normally open contact switch KM1-1 is restored to be in the disconnected state, so that the power supply loop of the cold guide block and the semiconductor refrigeration piece is disconnected, the cold guide block and the semiconductor refrigeration piece are powered off, the cooling is stopped, and the control of the shutdown of the cold guide block and the semiconductor refrigeration piece is realized.
Preferably, the heating switch module comprises a transistor Q2 and a relay KM2, the relay KM2 comprises a relay coil KM2-1 and a normally open contact switch KM2-2, a base of the transistor Q2 is coupled to the signal output end of the comparator N2, an emitter of the transistor Q2 is coupled to the power supply after being connected in series with the relay coil KM2-1, and a collector of the transistor Q2 is grounded; the normally open contact switch KM2-2 is connected in series in a power supply loop of the heating pipe and the electric heating pipe.
By adopting the technology, when the base of the triode Q2 receives the comparison signal output by the comparator N2, the low-level comparison signal outputs a heating switch signal to the power supply loop of the heating pipe and the electric heating pipe, the triode Q2 is conducted, the coil of the relay KM2 is electrified, and at the moment, the normally open contact switch KM2-1 of the relay KM1 is switched to a closed state from a disconnected state, so that the power supply loop of the heating pipe and the electric heating pipe is conducted, the heating pipe and the electric heating pipe are electrified to start heating, and the heating control of the heating pipe and the electric heating pipe is realized;
when the comparator N2 outputs a high-level signal, the base of the triode Q2 inputs a high level and is in a disconnected state, the coil of the relay KM2 is powered off, and the normally-open contact switch KM2-1 is restored to be in the disconnected state, so that a power supply loop of the heating pipe and the electric heating pipe is disconnected, the heating pipe and the electric heating pipe are powered off, heating is stopped, and the heating pipe and the electric heating pipe are controlled to be turned off.
Preferably, the dwang is provided with connecting rod and scraper blade, the one end of connecting rod with dwang fixed connection, the other end of connecting rod with scraper blade fixed connection, the scraper blade sets up towards vertical direction, the scraper blade is kept away from the one end butt of connecting rod in the inner wall of agitator.
By adopting the technology, the scraper is convenient for scraping the asphalt mixture on the inner wall of the stirring barrel.
Preferably, the heating pipe is wound on the outer wall of the inner layer of the stirring barrel, and the heating pipe is attached to the outer wall of the inner layer of the stirring barrel.
Through adopting above-mentioned technique, the heating pipe closely laminates with the inlayer of agitator, and the heating pipe is with heat conduction to the agitator in for the agitator heaies up more swiftly, is heated more evenly.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the temperature sensing module is arranged, so that the temperature of the emulsified asphalt in the stirring barrel can be detected at any time, a temperature signal is output, and then signal comparison is carried out according to the signal comparison module, so that the function of automatically heating or cooling the stirring barrel is realized, the emulsified asphalt is ensured to be in a proper temperature range, the emulsification quality of the asphalt is ensured, and the effect of paving the asphalt on the road surface is better;
2. the electric heating pipe and the cold conducting block are arranged, and when heating is carried out, the electric heating pipe accelerates the temperature rise of the asphalt mixture; when the temperature is reduced, the cooling block accelerates the temperature reduction of the asphalt mixture; the electric heating pipe and the cold conducting block are simultaneously arranged in the stirring rod, so that the temperature of the asphalt mixture is more uniform;
3. the comparator N1 and the comparator N2 are arranged, and the heating switch module and the cooling switch module are convenient to control according to the temperature signal output by the temperature sensor.
Drawings
Fig. 1 is a sectional view of the entire structure of embodiment 1 of the present application.
FIG. 2 is a schematic view of a stirring structure and a sensor according to example 1 of the present application.
Fig. 3 is a temperature control circuit diagram according to embodiment 1 of the present application.
Fig. 4 is a sectional view of the entire structure of embodiment 2 of the present application.
Fig. 5 is a temperature control circuit diagram according to embodiment 2 of the present application.
Description of reference numerals:
1. a stirring barrel; 11. a discharge pipe; 12. a ball valve; 13. sealing the space; 14. mounting holes; 2. a barrel cover; 21. a feed pipe; 211. a feed hopper; 22. rotating the rod; 23. a stirring rod; 24. a connecting rod; 241. a squeegee; 25. a bolt; 26. a drive member; 3. a semiconductor refrigeration sheet; 4. heating a tube; 5. a temperature sensor; 6. a temperature control circuit; 61. a temperature sensing module; 62. a signal comparison module; 621. a first signal comparison module; 622. a second signal comparison module; 63. a heating switch module; 64. a temperature switch module; 7. an electric heating tube; 8. and a cold conducting block.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment 1 of the application discloses cold regenerating unit of road surface pitch.
Referring to fig. 1, the pavement asphalt cold recycling device comprises a stirring barrel 1, wherein a barrel cover 2 is arranged at the topmost position of the stirring barrel 1 in a covering manner, a pair of mounting holes 14 are formed in one side, close to the barrel cover 2, of the stirring barrel 1, the two mounting holes are arranged oppositely, a bolt 25 is arranged in each mounting hole, each bolt 25 penetrates through the barrel cover 2, and each bolt 25 is installed in each mounting hole 14 in a threaded manner; the bolt 25 is arranged, so that the barrel cover 2 is convenient to stabilize on the stirring barrel 1; the barrel cover 2 is connected with a feeding pipe 21 in a penetrating manner, one end, extending out of the stirring barrel 1, of the feeding pipe 21 is fixedly provided with a feeding hopper 211, the feeding hopper 211 is a hopper with a large opening at the upper part and a small opening at the lower part, the end, with the small opening, of the feeding hopper 211 is fixedly connected with the feeding pipe 21 so as to be convenient for conveying materials into the stirring barrel 1, one side of the bottom of the stirring barrel 1 is connected with a discharging pipe 11 in a penetrating manner, and the discharging pipe 11 is fixedly provided with a ball valve 12; the opening and closing of the tapping pipe 11 can be controlled by rotating the ball valve 12.
Referring to fig. 1 and 2, the stirring barrel 1 is of a double-layer structure, a closed space 13 is formed between an inner layer and an outer layer of the double-layer structure, a heating pipe 4 is placed in the closed space 13, the heating pipe 4 is wound on the outer wall of the inner layer of the stirring barrel 1, and the heating pipe 4 is attached to the outer wall of the inner layer of the stirring barrel 1, so that the asphalt mixture in the stirring barrel 1 is heated more uniformly; a rotating rod 22 is arranged in the stirring barrel 1, the rotating rod 22 is arranged in the vertical direction, a semiconductor refrigerating sheet 3 is arranged in the rotating rod 22, one end of the rotating rod 22 is rotatably arranged on the barrel cover 2, five groups of stirring rods 23 are arranged on the rotating rod 22, the five stirring rods 23 are one group, and each group of stirring rods 23 are arranged on the side wall of the rotating rod 22 at intervals in the vertical direction; the rotating rod 22 is further provided with two pairs of connecting rods 24 and a pair of scrapers 241, the connecting rods 24 are arranged in the horizontal direction, the scrapers 241 are arranged in the vertical direction, one end of each connecting rod 24 is fixedly connected with the rotating rod 22, the other end of each connecting rod 24 is fixedly connected with the scrapers 241, and the two connecting rods 24 on the same side are fixedly connected with the same scraper 241; the agitating barrel 1 is also provided with a driving member 26 for driving the rotation rod 22 to rotate.
The driving part 26 comprises a driving motor, and an output shaft of the driving motor is fixedly connected with one end of the rotating rod 22 close to the barrel cover 2; when the driving motor is started, the rotating rod 22 is driven to rotate, the stirring rod 23 is driven simultaneously, the asphalt mixture in the barrel is fully stirred, the scraper blade 241 is used for scraping the asphalt mixture on the inner wall of the barrel, and the adhesion of the asphalt mixture on the inner wall of the stirring barrel 1 is reduced.
Referring to fig. 3, a temperature control circuit 6 for controlling the temperature inside the drum is coupled to the agitating drum 1, and the temperature control circuit 6 includes: the temperature sensing module 61, the signal comparison module 62, the heating switch module 63 and the cooling switch module 64;
the output end of the temperature sensing module 61 is coupled to the input end of the signal comparison module 62, and the temperature sensing module 61 is used for sensing the temperature change in the stirring barrel 1 and outputting a temperature signal to the signal comparison module 62; the temperature sensing module 61 includes a temperature sensor 5, the temperature sensor 5 is fixed on the rotating rod 22, and the temperature sensor 5 is used for detecting the temperature change condition of the stirring barrel 1 and outputting a temperature signal to the signal comparison module 62.
Referring to fig. 3, the signal comparison module 62 includes a first output terminal coupled to the input terminal of the cooling switch module 64 and a second output terminal coupled to the input terminal of the heating switch module 63; the signal comparison module 62 is provided with a first temperature threshold signal and a second temperature threshold signal, the first temperature threshold signal is greater than the second temperature threshold signal, the signal comparison module 62 is configured to output a comparison signal to the cooling switch module 64 when the temperature signal is greater than the first temperature threshold signal, and output the comparison signal to the heating switch module 63 when the temperature signal is less than the second temperature threshold signal;
the signal comparison module 62 includes a first signal comparison module 621 and a second signal comparison module 622, the first signal comparison module 621 includes a comparator N1 and a resistor R1, a first signal input terminal of the comparator N1 is coupled to the temperature sensor 5, the first signal input terminal of the comparator N1 is a positive phase input terminal, a second signal input terminal of the comparator N1 is coupled to one end of the resistor R1, the second signal input terminal of the comparator N1 is a negative phase input terminal, the other end of the resistor R1 is coupled to a first temperature threshold signal VREF1, and a signal output terminal of the comparator N1 is coupled to an output terminal of the temperature reduction switch module 64;
referring to fig. 3, the second signal comparing module 622 includes a comparator N2 and a resistor R2, a first signal input terminal of the comparator N2 is coupled to the temperature sensor 5, a first signal input terminal of the comparator N2 is a positive phase input terminal, a second signal input terminal of the comparator N2 is coupled to one end of the resistor R2, a second signal input terminal of the comparator N2 is an inverse phase input terminal, the other end of the resistor R2 is coupled to a second temperature threshold signal VREF2, and a signal output terminal of the comparator N2 is coupled to an input terminal of the heating switch module 63.
Referring to fig. 3, the output end of the cooling switch module 64 is coupled to the power supply loop of the semiconductor chilling plate 3, and the cooling switch module 64 is configured to control the semiconductor chilling plate 3 to start chilling or stop chilling when receiving the comparison signal; the cooling switch module 64 comprises a triode Q1 and a relay KM1, the relay KM1 comprises a relay coil KM1-1 and a normally open contact switch KM1-2, the base electrode of the triode Q1 is coupled with the signal output end of the comparator N1, the collector electrode of the triode Q1 is coupled with the power supply after being connected with the relay coil KM1-1 in series, and the emitter electrode of the triode Q1 is grounded; the normally open contact switch KM1-2 is connected in series in a power supply loop of the semiconductor refrigerating sheet 3.
The output end of the heating switch module 63 is coupled to the power supply loop of the heating pipe 4, and the heating switch module 63 is used for controlling the heating pipe 4 to heat or stop heating when receiving the comparison signal; the heating switch module 63 comprises a triode Q2 and a relay KM2, the relay KM2 comprises a relay coil KM2-1 and a normally open contact switch KM2-2, the base electrode of the triode Q2 is coupled to the signal output end of the comparator N2, the emitter electrode of the triode Q2 is connected with the relay coil KM2-1 in series and then coupled to a power supply, and the collector electrode of the triode Q2 is grounded; the normally open contact switch KM2-2 is connected in series in a power supply loop of the heating pipe 4.
The implementation principle of the pavement asphalt cold regeneration device in the embodiment 1 of the application is as follows:
when asphalt emulsification is carried out, emulsified asphalt is loaded into the stirring barrel 1 in advance, old asphalt is poured into the stirring barrel 1 from the feeding pipe 21, water and other raw materials are added, the heating pipe 4 and the semiconductor refrigerating sheet 3 are connected through signals, the driving piece 26 is started, the stirring rod 23 is driven to rotate by the rotating rod 22, the asphalt mixture is fully stirred, and meanwhile, the asphalt mixture stuck to the inner wall of the stirring barrel 1 is scraped away by the scraping plate 241;
the temperature sensing module 61 detects the temperature of the emulsified asphalt in the stirring barrel 1 and outputs a temperature signal, and the signal comparison module 62 receives the temperature signal and compares the temperature signal with the first temperature threshold signal and the second temperature threshold signal. When the temperature signal is greater than the first temperature threshold signal, the signal comparison module 62 outputs a comparison signal to the heating switch module 63 and the cooling switch module 64 at the same time, and at this time, the heating switch module 63 is not conducted;
when the base of the triode Q1 receives a comparison signal output by the comparator N1, the base is converted from a low level to a high level and outputs a cooling switch signal to conduct a power supply loop of the semiconductor refrigerating sheet 3, the triode Q1 is conducted, a coil of the relay KM1 is electrified, and at the moment, a normally open contact switch KM1-1 of the relay KM1 is converted from a disconnected state to a closed state, so that the power supply loop of the semiconductor refrigerating sheet 3 is conducted, the semiconductor refrigerating sheet 3 is electrified to start refrigerating, and the starting of the semiconductor refrigerating sheet 3 is controlled;
when the temperature signal is smaller than the second temperature threshold signal, the signal comparison module 62 outputs a comparison signal to the heating switch module 63 and the cooling switch module 64 at the same time, and the cooling switch module 64 is not conducted at this time; when the base of the triode Q2 receives a comparison signal output by the comparator N2, the low-level comparison signal outputs a heating switch signal to a power supply loop of the heating pipe 4, the triode Q2 is conducted, a coil of the relay KM2 is electrified, and at the moment, a normally open contact switch KM2-1 of the relay KM2 is switched to a closed state from a disconnected state, so that the power supply loop of the heating pipe 4 is conducted, the heating pipe 4 is electrified to start heating, and starting control of the heating pipe 4 is realized;
when the temperature of the asphalt mixture is between the first temperature threshold signal and the second temperature threshold signal, the signal comparison module 62 outputs a comparison signal to the heating block 63 and the cooling switch module 64, and at this time, the heating switch module 63 and the cooling switch module 64 are not conducted; and after the mixture is fully and uniformly stirred, the asphalt mixture is conveyed out from the discharge pipe 11 and is used for paving the pavement.
The embodiment 2 of the application discloses cold regenerating unit of road surface pitch.
Referring to fig. 4 and 5, the difference from embodiment 1 is that five groups of stirring rods 23 include three groups of heating stirring rods and two groups of cooling stirring rods, the three groups of heating stirring rods and the two groups of cooling stirring rods are vertically arranged on the rotating rod 22 at intervals, the three groups of heating stirring rods are internally provided with the electric heating tubes 7, the two groups of cooling stirring rods are internally provided with the cooling blocks 8, and the electric heating tubes 7 and the cooling blocks 8 are simultaneously installed to make the temperature of the asphalt mixture more uniform; the electric heating tube 7 is connected in series with the power supply loop of the heating tube 4, and the cold guide block 8 is connected in series with the power supply loop of the semiconductor refrigeration piece 3.
The implementation principle of the cold regenerating unit of this application embodiment 2 a road surface pitch is:
when a power supply loop of the heating pipe 4 is started, the electric heating pipe 7 is started to heat, and the electric heating pipe 7 conducts heat to the heating stirring rod, so that the asphalt mixture is stirred more uniformly and the temperature rises more quickly;
when starting the power supply circuit of semiconductor refrigeration piece 3, start cold block 8 simultaneously and begin to refrigerate, cold block 8 will cool conduct in the cooling puddler for the pitch mixture stirs more evenly and the cooling is faster.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The pavement asphalt cold regeneration device is characterized by comprising a stirring barrel (1), wherein a barrel cover (2) is covered at the topmost position of the stirring barrel (1), the barrel cover (2) is connected with a feeding pipe (21) in a penetrating manner, and the bottom of one side of the stirring barrel (1) is connected with a discharging pipe (11) in a penetrating manner; the stirring barrel (1) is of a double-layer structure, a closed space (13) is formed between an inner layer and an outer layer of the double-layer structure, and a heating pipe (4) is placed in the closed space (13); the inside of agitator (1) is provided with dwang (22), the one end rotary type of dwang (22) is installed bung (2), dwang (22) are provided with a plurality of puddlers (23), the one end and dwang (22) fixed connection of puddler (23), dwang (22) embeds there is semiconductor refrigeration piece (3), agitator (1) still is provided with and is used for the drive dwang (22) pivoted driving piece (26), temperature control circuit (6) that are used for the interior temperature of control barrel are coupled in agitator (1), temperature control circuit (6) include: the device comprises a temperature sensing module (61), a signal comparison module (62), a heating switch module (63) and a cooling switch module (64);
the output end of the temperature sensing module (61) is coupled to the input end of the signal comparison module (62), and the temperature sensing module (61) is used for sensing the temperature change in the stirring barrel (1) and outputting a temperature signal to the input end of the signal comparison module (62);
the signal comparison module (62) comprises a first output end and a second output end, the first output end is coupled to the input end of the cooling switch module (64), and the second output end is coupled to the input end of the heating switch module (63); the signal comparison module (62) is provided with a first temperature threshold signal and a second temperature threshold signal, the first temperature threshold signal is greater than the second temperature threshold signal, and the signal comparison module (62) is used for outputting a comparison signal to the cooling switch module (64) when the temperature signal is greater than the first temperature threshold signal and outputting the comparison signal to the heating switch module (63) when the temperature signal is less than the second temperature threshold signal;
the output end of the cooling switch module (64) is coupled with a power supply loop of the semiconductor refrigerating sheet (3), and the cooling switch module (64) is used for controlling the semiconductor refrigerating sheet (3) to start or stop refrigerating when receiving a comparison signal; the output end of the heating switch module (63) is coupled to a power supply loop of the heating pipe (4), and the heating switch module (63) is used for controlling the heating pipe (4) to start heating or stop heating when receiving a comparison signal.
2. The pavement asphalt cold recycling device according to claim 1, wherein the temperature sensing module (61) comprises a temperature sensor (5), the temperature sensor (5) is fixed on the rotating rod (22), and the temperature sensor (5) is used for detecting the temperature change of the stirring barrel (1) and outputting a temperature signal to the signal comparison module (62).
3. The cold recycling device for asphalt from road surface according to claim 1, wherein the stirring rod (23) comprises a heating stirring rod and a cooling stirring rod, the heating stirring rod is provided with an electric heating tube (7) inside, the cooling stirring rod is provided with a cold guiding block (8) inside, the electric heating tube (7) is connected in series with the power supply circuit of the heating tube (4), and the cold guiding block (8) is connected in series with the power supply circuit of the semiconductor chilling plate (3).
4. The pavement asphalt cold regeneration device according to claim 2, wherein the signal comparison module (62) comprises a first signal comparison module (621) and a second signal comparison module (622), the first signal comparison module (621) comprises a comparator N1 and a resistor R1, a first signal input end of the comparator N1 is coupled to the output end of the temperature sensor (5), a second signal input end of the comparator N1 is coupled to one end of the resistor R1, the other end of the resistor R1 is coupled to a first temperature threshold signal, and a signal output end of the comparator N1 is coupled to the input end of the temperature reduction switch module (64); the second signal comparison module (622) comprises a comparator N2 and a resistor R2, a first signal input end of the comparator N2 is coupled to the temperature sensor (5), a second signal input end of the comparator N2 is coupled to one end of the resistor R2, the other end of the resistor R2 is coupled to a second temperature threshold signal, and a signal output end of the comparator N2 is coupled to an input end of the heating switch module (63).
5. The cold recycling device for pavement asphalt according to claim 3, wherein the cooling switch module (64) comprises a transistor Q1 and a relay KM1, the relay KM1 comprises a relay coil KM1-1 and a normally open contact switch KM1-2, a base of the transistor Q1 is coupled to the signal output end of the comparator N1, a collector of the transistor Q1 is coupled to the power supply after being connected in series with the relay coil KM1-1, and an emitter of the transistor Q1 is grounded; the normally open contact switch KM1-2 is connected in series in a power supply loop of the semiconductor refrigeration piece (3) and the cold guide block (8).
6. The cold recycling device for road asphalt according to claim 3, wherein the heating switch module (63) comprises a transistor Q2 and a relay KM2, the relay KM2 comprises a relay coil KM2-1 and a normally open contact switch KM2-2, a base of the transistor Q2 is coupled to the signal output terminal of the comparator N2, an emitter of the transistor Q2 is coupled to the power supply after being connected in series with the relay coil KM2-1, and a collector of the transistor Q2 is grounded; the normally open contact switch KM2-2 is connected in series in a power supply loop of the heating pipe (4) and the electric heating pipe (7).
7. The cold regenerating unit of road surface asphalt according to claim 1, characterized in that, the dwang (22) is provided with connecting rod (24) and scraper blade (241), one end of connecting rod (24) with dwang (22) fixed connection, the other end of connecting rod (24) with scraper blade (241) fixed connection, scraper blade (241) sets up towards vertical direction, the one end that connecting rod (24) was kept away from to scraper blade (241) butts in the inner wall of agitator (1).
8. The pavement asphalt cold recycling device according to claim 1, wherein the heating pipe (4) is wound on the outer wall of the inner layer of the stirring barrel (1), and the heating pipe (4) is attached to the outer wall of the inner layer of the stirring barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222803870.5U CN218688488U (en) | 2022-10-24 | 2022-10-24 | Cold regenerating unit of road surface pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222803870.5U CN218688488U (en) | 2022-10-24 | 2022-10-24 | Cold regenerating unit of road surface pitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218688488U true CN218688488U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222803870.5U Active CN218688488U (en) | 2022-10-24 | 2022-10-24 | Cold regenerating unit of road surface pitch |
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| Country | Link |
|---|---|
| CN (1) | CN218688488U (en) |
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2022
- 2022-10-24 CN CN202222803870.5U patent/CN218688488U/en active Active
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