CN110589521A - Cold aggregate conveying system of asphalt mixing station - Google Patents
Cold aggregate conveying system of asphalt mixing station Download PDFInfo
- Publication number
- CN110589521A CN110589521A CN201910949776.0A CN201910949776A CN110589521A CN 110589521 A CN110589521 A CN 110589521A CN 201910949776 A CN201910949776 A CN 201910949776A CN 110589521 A CN110589521 A CN 110589521A
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- China
- Prior art keywords
- shell
- dust
- mixing station
- asphalt mixing
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 59
- 238000003860 storage Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 6
- 241000282472 Canis lupus familiaris Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/12—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
- B65G17/126—Bucket elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/186—Preventing escape of dust by means of non-sealed systems with aspiration means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention provides a cold aggregate conveying system of an asphalt mixing station, which comprises a cold material bin, a screw conveyor, a conveying device and a drying cylinder, wherein the screw conveyor is arranged on the cold material bin; the conveying device comprises a first shell, a conveying chain is arranged in the first shell, a plurality of pairs of hoppers are arranged on the conveying chain, and each pair of hoppers is hinged to the left side and the right side of the conveying chain; a first motor reducer all-in-one machine, a driving gear and a steering gear are further arranged in the first shell; the first shell is also provided with a feeding bin, an electric push rod and a photoelectric counter; the bottom of the feeding bin is provided with a pair of feed openings; the telescopic end of the electric push rod is provided with a push plate, and the push plate drives the flashboard to open or close the feed opening; the photoelectric counter is arranged at the corresponding hopper; the first shell is also provided with a third discharge hole, a pair of blocking handles for turning each pair of hoppers and a controller; the first discharge port is in butt joint with the second feed port, the second discharge port is in butt joint with the feeding bin, and the third discharge port is in butt joint with the fourth feed port. The cold aggregate conveying device is simple in structural design and can be used for efficiently conveying the cold aggregate of the asphalt mixing station.
Description
Technical Field
The invention relates to the technical field of asphalt mixing stations, in particular to a cold aggregate conveying system of an asphalt mixing station.
Background
The asphalt mixing station is a kind of asphalt pavement material mixing equipment, and its basic working principle is that the raw materials of asphalt, sand stone, etc. are heated to a certain temp., and mixed with the raw materials of stone powder, additive, etc. in a high-temp. closed environment to obtain a hot asphalt mixture. Wherein, the cold burden such as grit needs now to send to the stoving cylinder in through conveyor and heat after cold burden storehouse screening, measurement.
The cold material conveying device of the traditional asphalt concrete mixing equipment mainly comprises a belt conveyor, a lifter and a chute; the elevator is connected between the belt conveyor and the chute, the belt conveyor is used for horizontally conveying cold materials, and the elevator is used for vertically conveying the cold materials. This cold burden conveyor, not only area is big, spare part is too much, the installation is complicated, at the operation in-process, can't avoid producing dust and noise, and it is too much to maintain moreover, produces the trouble easily, influences asphalt concrete's production efficiency.
Disclosure of Invention
In order to overcome the technical problem, the invention provides a cold aggregate conveying system of an asphalt mixing station, which is simple in structural design, can improve the working efficiency of the asphalt mixing station and avoid dust raising, and the specific scheme is as follows:
a cold aggregate conveying system of an asphalt mixing station comprises a cold material bin provided with a first discharge port, an auger conveyor provided with a second feed port and a second discharge port, a conveying device and a drying cylinder provided with a fourth feed port; the conveying device comprises a first shell, a conveying chain is arranged in the first shell, a plurality of pairs of hoppers are arranged on the conveying chain at equal intervals, and each pair of hoppers is symmetrically hinged to the left side and the right side of the conveying chain; the first shell is internally provided with a first motor and reducer integrated machine, a driving gear and a steering gear, the first motor and reducer integrated machine drives the driving gear to rotate, the driving gear drives the conveying chain to rotate, and the steering gear divides the conveying chain into a first horizontal section at the lower side, a second horizontal section at the upper side and a vertical section for connecting the first horizontal section and the second horizontal section; an upper material bin, an electric push rod and a photoelectric counter are arranged on the first shell corresponding to the first horizontal section; the bottom of the feeding bin is provided with a pair of feed openings corresponding to each pair of hoppers; the telescopic end of the electric push rod is provided with a push plate, and the push plate drives the flashboard to open or close the pair of feed openings; the photoelectric counter is arranged aiming at the hopper; a third discharge hole is formed in the first shell corresponding to the second horizontal section; the hoppers are respectively provided with a stop block, and the first shell corresponding to the third discharge port is also provided with a pair of stop handles aiming at the stop blocks; the first shell is also provided with a controller, and the first motor reducer all-in-one machine, the electric push rod and the photoelectric counter are electrically connected to the controller; the first discharge hole is in butt joint with the second feed inlet, the second discharge hole is in butt joint with the feeding bin, and the third discharge hole is in butt joint with the fourth feed inlet.
Based on the above, the auger conveyor is driven by the second motor reducer all-in-one machine; a dust outlet is also formed in the auger conveyor, and an induced draft fan is arranged at the dust outlet; the second motor reducer all-in-one machine and the induced draft fan are both electrically connected to the controller; auger conveyer upside still seat is equipped with dust separator, dust separator includes the second casing, the second casing is divided into the air chamber that is located the upside and is located the dust collecting chamber of downside by built-in baffle, the top of air chamber is equipped with the gas outlet, the bottom of dust collecting chamber is equipped with the clearance mouth, still be equipped with cyclone on the baffle, cyclone is including being located air inlet, gas vent in the air chamber and being located dust outlet in the dust collecting chamber, the air inlet pipeline is connected to go out the dirt mouth.
Based on the above, the air chamber is close to air outlet department is equipped with the filter screen.
Based on the above, a dust concentration detector is arranged in the auger conveyor corresponding to the dust outlet; the dust concentration detector is electrically connected to the controller.
Based on the above, be equipped with pressure sensor on the bottom plate of going up the feed bin, pressure sensor electric connection to the controller.
Based on the above, the bottom of the dust collecting chamber is conical.
Based on the above, the bottom of the first shell corresponding to the first horizontal section is conical, and the lowest part of the conical shape is provided with a blanking recovery port; the bottom of the first shell corresponding to the second horizontal section slants obliquely downwards to the vertical section.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly has the following advantages:
1. according to the invention, the dust concentration detector is arranged in the auger conveyor, the draught fan is arranged at the dust outlet, both the dust concentration detector and the draught fan are electrically connected to the controller, the auger conveyor is provided with the dust separation device, the dust outlet is connected with the dust separation device through a pipeline, and dust generated in the conveying process of the cold aggregate in the auger conveyor can be removed through the dust separation device, so that the dust raising phenomenon of the asphalt mixing station is avoided.
2. According to the invention, the aggregate is transferred and lifted by hinging and installing the hopper on the conveying chain, and compared with the traditional aggregate conveying system, the aggregate conveying system has the advantages of simpler structure, more convenient maintenance and higher operation efficiency.
3. According to the invention, the first motor reducer all-in-one machine, the second motor reducer all-in-one machine, the photoelectric counter and the electric push rod are electrically connected to the controller, the aggregate filling operation from the feeding bin to the hopper and the amount of the aggregate added into the drying cylinder can be controlled through the controller, and the intelligent drying device has the obvious characteristic of intelligence.
4. According to the invention, the second motor speed reducer all-in-one machine for driving the auger conveyor and the pressure sensor arranged on the bottom plate of the upper storage bin are electrically connected to the controller, when the pressure is too high, the auger conveyor is closed by the controller, and when the pressure is too low, the auger conveyor is opened by the controller, so that the structural design not only ensures the use safety of the auger conveyor, but also ensures the continuous conveying of aggregates.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the aggregate transfer device of the present invention.
Fig. 3 is an enlarged front view of the structure at a1 in fig. 1.
Fig. 4 is an enlarged left side view of the structure at a1 in fig. 1.
Fig. 5 is an enlarged front view of the structure at a2 in fig. 1.
Fig. 6 is an enlarged front view of the structure at a3 in fig. 1.
Fig. 7 is an enlarged plan view of the structure at a3 in fig. 1.
FIG. 8 is a schematic view showing the structure of the dust separating apparatus of the present invention.
In the figure: 1. a cold storage bin; 1-1, a first discharge port; 2. a first bracket; 3. a screw conveyor; 3-1, a second feed inlet; 4. a second motor reducer all-in-one machine; 5. a second bracket; 6. a conveying device; 7. a first housing; 8. a first motor reducer all-in-one machine; 9. a driving gear; 10. a conveyor chain; 11. a hopper; 11-1, a stop block; 11-2. shift handle; 12. a drying drum; 12-1, a fourth feed inlet; 13. a controller; 14. feeding a bin; 15. a dust outlet; 16. an induced draft fan; 17. a pipeline; 18. a dust separation device; 19. a third discharge port; 20. a photoelectric counter; 21. a blanking recovery port; 22. a steering gear; 23. a pin shaft; 24. a second housing; 25. a cyclone separator; 25-1. an air inlet; 25-2. an exhaust port; 25-3, a dust outlet; 26. a filter screen; 27. an air outlet; 28. cleaning the opening; 29. a third support; 30. a partition plate; 31. a supporting seat; 32. an electric push rod; 33. a fourth bracket; 34. a telescopic end; 35. pushing the plate; 36. a shutter plate; 37. a roller; 38. a base plate; 39. a feeding port; 40. a dust concentration detector.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Examples
As shown in fig. 1-8, the invention provides a cold aggregate conveying system for an asphalt mixing station, which comprises a cold silo 1 provided with a first discharge port 1-1, an auger conveyor 3 provided with a second feed port 3-1 and a second discharge port, a conveying device 6 and a drying cylinder 12 provided with a fourth feed port 12-1, wherein the bottom of the cold silo 1 is provided with a first support 2, and the bottom of the auger conveyor 3 is provided with a second support 5.
The auger conveyor 3 is driven by a second motor reducer all-in-one machine 4; a dust outlet 15 is also formed in the auger conveyor 3, and a draught fan 16 is arranged at the dust outlet 15; and a dust concentration detector 40 is arranged at the dust outlet 15.
The 3 upside of auger conveyor is equipped with dust separator 18, dust separator 18 includes and sits the second casing 24 of establishing on auger conveyor 3 through third support 29, second casing 24 is divided into the air chamber that is located the upside and is located the dust collecting chamber of downside by built-in baffle 30, the top of air chamber is equipped with gas outlet 27, be close to in the air chamber 27 department is equipped with filter screen 26. The bottom of the dust collecting chamber is provided with a cleaning port 28, the partition plate 30 is further provided with a cyclone separator 25, the cyclone separator 25 comprises an air inlet 25-1, an air outlet 25-2 and a dust outlet 25-3, the air inlet 25-1 is positioned in the air chamber, and the pipeline 17 is connected to the dust outlet 15.
The conveying device 6 comprises a first shell 7, a conveying chain 10 is arranged in the first shell 7, a plurality of pairs of hoppers 11 are arranged on the conveying chain 10 at equal intervals, and each pair of hoppers 11 are symmetrically hinged to the left side and the right side of the conveying chain 10 through pin shafts 23.
Still be equipped with first motor reducer all-in-one 8, driving gear 9 and steering gear 22 in the first casing 7, first motor reducer all-in-one 8 drives driving gear 9 rotates, driving gear 9 drives conveying chain 10 rotates, steering gear 22 will conveying chain 10 divide into the first horizontal segment that is located the downside, is located the second horizontal segment of upside and connects the vertical section of first horizontal segment and second horizontal segment.
The first shell 7 is provided with an upper bin 14, an electric push rod 32 and a photoelectric counter 20 at a position corresponding to the first horizontal section; the upper storage bin 14 is arranged on the first shell 7 through a support seat 31, a pressure sensor is arranged on a bottom plate 38 of the upper storage bin 14, and a pair of discharge ports 39 corresponding to each pair of hoppers 11 are further arranged at the bottom of the upper storage bin 14 and used as a channel for feeding the upper storage bin 14 into the hoppers 11; the electric push rod 32 is seated on the first shell 7 through the fourth bracket 33, the telescopic end 34 of the electric push rod 32 is provided with a push plate 35, the push plate 35 drives the gate plate 36 to open or close the pair of feed openings 39, and in order to facilitate the movement of the gate plate 36, the upper storage bin 14 is provided with a pair of rollers 37 for clamping the gate plate 36; the photoelectric counter 20 is provided for the hopper 11 to count the passing hopper 11.
A third discharge hole 19 is formed in the first shell 7 corresponding to the second horizontal section; the hoppers 11 are respectively provided with a stop dog 11-1, the first shell 7 corresponding to the third discharge hole 19 is also provided with a pair of stop handles aiming at the stop dogs 11-1, and the stop handles 11-2 are used for applying force to the stop dogs 11-1 to turn over the hoppers 11 so that the aggregates in the hoppers 11 enter the third discharge hole 19.
The first shell 7 is further provided with a controller 13, and the first motor reducer all-in-one machine 8, the second motor reducer all-in-one machine 4, the electric push rod 32, the dust concentration detector 40, the pressure sensor and the photoelectric counter 20 are all electrically connected to the controller 13.
The first discharge hole 1-1 is in butt joint with the second feed hole 3-1, the second discharge hole is in butt joint with the feeding bin 14, and the third discharge hole 19 is in butt joint with the fourth feed hole 12-1.
It should be noted that the bottom of the chamber is tapered to facilitate dust evacuation from the chamber.
In addition, considering that some falling materials may be generated in the process of conveying the aggregates in the first shell 7, in order to recover the falling materials, the bottom of the first shell 7 corresponding to the first horizontal section is tapered, and the lowest part of the taper is provided with a falling material recovery port 21; the bottom of the first shell 7 corresponding to the second horizontal segment is inclined obliquely downwards to the vertical segment.
The specific working principle of the invention is as follows: firstly, the number of hoppers 11 needing to add aggregate into a drying cylinder 12 is set through a controller 13, and then the controller 13 is used for adjusting the running speeds of the first motor reducer all-in-one machine 8 and the second motor reducer all-in-one machine 4 and starting to work; the aggregate in the cold storage bin 1 enters the auger conveyor 3, enters the upper storage bin 14 through the auger conveyor 3, the photoelectric counter 20 sends an electric signal to the controller 13 when detecting that the hopper 11 passes through, the controller 13 controls the electric push rod 32 to act, the feed opening 39 is opened, the material is fed into the hopper 11 for 5-10 seconds, then the feed opening 39 is closed, and the one-time feeding operation from the storage bin to the hopper 11 is completed; when the hopper 11 passes through the third discharge port 19, the stopper 11-2 turns the hopper so that the aggregates enter the drying cylinder 12 through the third discharge port 19.
When the pressure value measured by the pressure sensor in the feeding bin 14 is too high, the controller 13 closes the second motor and speed reducer all-in-one machine 4 and stops feeding the feeding bin 14; when the pressure value measured by the pressure sensor in the feeding bin 14 is too low, the controller 13 opens the second motor reducer all-in-one machine 4 to start feeding the feeding bin 14.
When the dust concentration detected by the dust concentration detector 40 exceeds the standard, the controller 13 starts the induced draft fan 16 to work, and dust enters the dust separation device 18 for dust separation; when the dust concentration detected by the dust concentration detector 40 reaches the standard, the controller 13 closes the induced draft fan 16.
When the value of the photoelectric counter 20 meets the requirement, the controller 13 controls the first motor reducer to work in a delayed mode for a period of time, so that all aggregates in the hopper 11 are unloaded into the drying cylinder 12, and then all equipment is closed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides an asphalt mixing station cold aggregate conveying system which characterized in that: comprises a cold storage bin (1) provided with a first discharge hole (1-1), an auger conveyor (3) provided with a second feed hole (3-1) and a second discharge hole, a conveying device (6) and a drying cylinder (12) provided with a fourth feed hole (12-1); the conveying device (6) comprises a first shell (7), a conveying chain (10) is arranged in the first shell (7), a plurality of pairs of hoppers (11) are arranged on the conveying chain (10) at equal intervals, and each pair of hoppers (11) are symmetrically hinged to the left side and the right side of the conveying chain (10); a first motor and speed reducer integrated machine (8), a driving gear (9) and a steering gear (22) are further arranged in the first shell (7), the driving gear (9) is driven by the first motor and speed reducer integrated machine (8) to rotate, the conveying chain (10) is driven by the driving gear (9) to rotate, and the conveying chain (10) is divided into a first horizontal section located on the lower side, a second horizontal section located on the upper side and a vertical section connecting the first horizontal section and the second horizontal section by the steering gear (22); an upper storage bin (14), an electric push rod (32) and a photoelectric counter (20) are arranged on the first shell (7) corresponding to the first horizontal section; the bottom of the upper bin (14) is provided with a pair of feed openings (39) corresponding to each pair of hoppers (11); a push plate (35) is arranged at the telescopic end (34) of the electric push rod (32), and the push plate (35) drives the gate plate (36) to open or close the pair of feed openings (39); the photoelectric counter (20) is arranged for the hopper (11); a third discharge hole (19) is formed in the first shell (7) corresponding to the second horizontal section; the hoppers (11) are respectively provided with a stop block (11-1), and the first shell (7) corresponding to the third discharge hole (19) is also provided with a pair of stop handles (11-2) aiming at the stop blocks (11-1); the first shell (7) is also provided with a controller (13), and the first motor and speed reducer all-in-one machine (8), the electric push rod (32) and the photoelectric counter (20) are electrically connected to the controller (13); the first discharge hole (1-1) is in butt joint with the second feed hole (3-1), the second discharge hole is in butt joint with the upper storage bin (14), and the third discharge hole (19) is in butt joint with the fourth feed hole (12-1).
2. The asphalt mixing station cold aggregate delivery system of claim 1, wherein: the auger conveyor (3) is driven by a second motor and speed reducer integrated machine (4); a dust outlet (15) is also formed in the auger conveyor (3), and a draught fan (16) is arranged at the dust outlet (15); the second motor and reducer all-in-one machine (4) and the induced draft fan (16) are electrically connected to the controller (13); auger conveyer (3) upside still is equipped with dust separator (18), dust separator (18) include second casing (24), second casing (24) are divided into the air chamber that is located the upside and are located the dust collecting chamber of downside by built-in baffle (30), the top of air chamber is equipped with gas outlet (27), the bottom of dust collecting chamber is equipped with clearance mouth (28), still be equipped with cyclone (25) on baffle (30), cyclone (25) are including being located air inlet (25-1), gas vent (25-2) in the air chamber and being located dust outlet (25-3) in the dust collecting chamber, air inlet (25-1) pipeline (17) are connected to go out dirt mouth (15).
3. The asphalt mixing station cold aggregate delivery system of claim 2, wherein: a filter screen (26) is arranged in the air chamber close to the air outlet (27).
4. The asphalt mixing station cold aggregate delivery system of claim 3, wherein: a dust concentration detector (40) is arranged in the auger conveyor (3) corresponding to the dust outlet (15); the dust concentration detector (40) is electrically connected to the controller (13).
5. The asphalt mixing station cold aggregate delivery system of claim 1, wherein: and a pressure sensor is arranged on a bottom plate (38) of the upper storage bin (14), and the pressure sensor is electrically connected to the controller (13).
6. The asphalt mixing station cold aggregate delivery system of claim 1, wherein: the bottom of the dust collecting chamber is conical.
7. The asphalt mixing station cold aggregate delivery system of claim 1, wherein: the bottom of the first shell (7) corresponding to the first horizontal section is conical, and the lowest part of the conical shape is provided with a blanking recovery port (21); the bottom of the first shell (7) corresponding to the second horizontal section slants obliquely downwards to the vertical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949776.0A CN110589521A (en) | 2019-10-08 | 2019-10-08 | Cold aggregate conveying system of asphalt mixing station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910949776.0A CN110589521A (en) | 2019-10-08 | 2019-10-08 | Cold aggregate conveying system of asphalt mixing station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110589521A true CN110589521A (en) | 2019-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910949776.0A Pending CN110589521A (en) | 2019-10-08 | 2019-10-08 | Cold aggregate conveying system of asphalt mixing station |
Country Status (1)
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| CN (1) | CN110589521A (en) |
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