Low-rolling-resistance asphalt feeding device

Abstract

The utility model relates to the technical field of asphalt concrete production, in particular to a low-rolling-resistance asphalt feeding device. Comprising a conveying cylinder, the conveying cylinder is of a horizontal cylindrical structure, a feeding port and a discharging port are formed in the tops of the left end and the right end of the conveying cylinder respectively, an end cover detachably covers the outer side of the leftmost end of the conveying cylinder in a sealed mode, an air outlet is formed in the top of the rightmost end of the conveying cylinder, and a piston is arranged in the conveying cylinder. One end of the piston is connected with a pressing rod of the hydraulic cylinder through a connecting rod, and the connecting rod movably penetrates through an end cover at the leftmost end of the conveying barrel; a left supporting leg and a right supporting leg are arranged on the lower portions of the left end and the right end of the conveying cylinder respectively, the lower end of the left supporting leg is hinged to the fixed supporting leg, the lower end of the right supporting leg is hinged to the telescopic supporting leg, and lockable pulleys are arranged at the bottom of the telescopic supporting leg. The asphalt quantitative discharging device can realize quantitative discharging of asphalt and is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt concrete production, in particular to a low rolling resistance asphalt feeding device. Background Art

[0002] Low rolling resistance asphalt is made by adding specific modifiers to asphalt, such as hydroxyl oxidized polyethylene compounds or HPT modifiers, to improve the molecular structure and performance of asphalt. After adding the modifier, the molecular structure of asphalt changes, allowing the viscoelastic molecules to play an intermolecular lubricating role when deformed by load, thereby reducing the hysteresis effect and endogenous heat of the material. This modification reduces the growth rate of the viscosity modulus (loss modulus) of the asphalt material, while trying to keep the storage modulus (elastic modulus) unchanged or reduce its attenuation rate. The advantage of low rolling resistance asphalt is that it improves the fuel economy of vehicles and reduces tire wear, while maintaining good road performance.

[0003] When used for paving, low rolling resistance asphalt needs to be mixed with mineral materials (such as sand, gravel) and other additives to form an asphalt concrete mixture suitable for paving. In actual construction, the existing asphalt feeding device cannot automatically feed the mixing device, and the feeding amount is mostly controlled manually, which easily leads to inaccurate feeding amount, making the quality of the asphalt concrete mixture uneven, thus affecting the overall quality of the road surface. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a low rolling resistance asphalt feeding device which can realize quantitative discharging of asphalt and is convenient for cleaning.

[0005] The low rolling resistance asphalt feeding device described in the utility model includes a conveying cylinder, which is a horizontal cylindrical structure. The tops of the left and right ends of the conveying cylinder are respectively provided with a material inlet and a material outlet. The outer side of the leftmost end of the conveying cylinder is detachably covered with an end cover, and the top of the rightmost end of the conveying cylinder is provided with an air outlet. A piston is provided inside the conveying cylinder. When the piston moves to the leftmost side of the conveying cylinder, the material inlet is located on the right side of the piston. One end of the piston is connected to the pressure rod of the hydraulic cylinder through a connecting rod, and the connecting rod movably passes through the end cover at the leftmost end of the conveying cylinder; a left supporting leg and a right supporting leg are respectively provided at the lower parts of the left and right ends of the conveying cylinder, the lower end of the left supporting leg is hinged to the fixed supporting leg, and the lower end of the right supporting leg is hinged to the telescopic supporting leg, and a lockable pulley is provided at the bottom of the telescopic supporting leg.

[0006] Preferably, a liquid spray port is provided on the piston, the liquid spray port is connected to the liquid delivery pipe, and a liquid discharge port is provided at the bottom of one end of the delivery tube discharge port.

[0007] Preferably, the liquid delivery pipe is connected to a high-pressure pump.

[0008] Preferably, the liquid delivery pipe is a high-pressure hose, which will not interfere with the movement of the piston.

[0009] Preferably, the connecting rod is provided with a scale, which enables the pushing distance of the piston to be calculated more accurately.

[0010] Preferably, a measuring claw is provided on the end cover, and the measuring claw is arranged corresponding to the scale on the connecting rod. The measuring claw is arranged corresponding to the scale, so that the reading of the scale is more accurate.

[0011] Valves can be installed on the pipeline according to control needs, and the flow of materials in the corresponding pipeline can be conveniently controlled and adjusted by opening and closing the valves.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. After delivering asphalt into the conveying cylinder, close the inlet port, raise the height of the telescopic legs so that the right end of the conveying cylinder is higher than the left end, open the air outlet, close the discharge port, push the piston appropriately, drive out the air in the conveying cylinder, and fill the asphalt between the inner wall of the conveying cylinder and the piston, close the air outlet, open the discharge port, continue to push the piston, and the asphalt is delivered from the discharge port to the stirring and mixing device. The volume of the asphalt pushed out can be obtained according to the piston advancement distance and the inner diameter of the conveying cylinder, and the mass of the asphalt delivered can be obtained according to the asphalt density and volume. The utility model can realize quantitative feeding when mixing asphalt and additives;

[0014] 2. Since the discharge port is located at the top of the right end of the conveying cylinder, the right end of the conveying cylinder is higher than the left end when feeding. Under the action of gravity, the asphalt material in the conveying cylinder will be delivered only when the piston pushes, which is more conducive to accurate feeding;

[0015] 3. When the telescopic legs raise the height of the right end of the conveying cylinder, the right end of the conveying cylinder tends to move to the left in the horizontal direction while it rises. The lock buckle of the locking pulley can be locked to raise the telescopic legs and move to the left at the same time, so that the telescopic legs always remain in a vertical state;

[0016] 4. Asphalt can be dissolved in carbon disulfide, when all the materials in the conveying cylinder are delivered, the piston is reset, and carbon disulfide is sprayed out through the spray port to flush the inner wall of the conveying cylinder. At the same time, the reciprocating motion of the piston is controlled to further improve the flushing effect, and then the height of the telescopic legs is lowered so that the left end of the conveying cylinder is higher than the right end, and the dirty liquid after flushing is discharged from the drain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model in the feeding state;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model in the flushing state;

[0020] Figure 4 It is a schematic diagram of the disassembled structure of the conveying cylinder;

[0021] Figure 5 It is a schematic diagram of the piston structure;

[0022] In the figure: 1. conveying cylinder; 2. material inlet; 3. material outlet; 4. end cover; 5. air outlet; 6. piston; 7. connecting rod; 8. left supporting leg; 9. right supporting leg; 10. fixed supporting leg; 11. telescopic supporting leg; 12. lockable pulley; 13. liquid spraying port; 14. liquid delivery pipe; 15. measuring claw; 16. liquid discharge port. DETAILED DESCRIPTION

[0023] The present invention will be described clearly and completely below with reference to the accompanying drawings.

[0024] like Figure 1 , Figure 4 As shown, the low rolling resistance asphalt feeding device described in the utility model includes a conveying cylinder 1, which is a horizontal cylindrical structure. A material inlet 2 and a material outlet 3 are respectively provided at the top of the left and right ends of the conveying cylinder 1. The outer side of the leftmost end of the conveying cylinder 1 is detachably covered with an end cover 4, and the top of the rightmost end of the conveying cylinder 1 is provided with an air outlet 5. A piston 6 is provided inside the conveying cylinder 1. When the piston 6 moves to the leftmost side of the conveying cylinder 1, the material inlet 2 is located on the right side of the piston 6. One end of the piston 6 is connected to the pressure rod of the hydraulic cylinder through a connecting rod 7, and the connecting rod 7 movably passes through the end cover 4 at the leftmost end of the conveying cylinder 1; a left supporting leg 8 and a right supporting leg 9 are respectively provided at the lower part of the left and right ends of the conveying cylinder 1, the lower end of the left supporting leg 8 is hinged to the fixed supporting leg 10, and the lower end of the right supporting leg 9 is hinged to the telescopic supporting leg 11, and a lockable pulley 12 is provided at the bottom of the telescopic supporting leg 11.

[0025] The piston 6 is provided with a liquid spraying port 13 , which is connected to a liquid delivery pipe 14 , and a liquid discharge port 16 is provided at the bottom of one end of the discharge port 3 of the conveying cylinder 1 .

[0026] The liquid delivery pipe 14 is connected to a high-pressure pump.

[0027] The liquid delivery pipe 14 is a high-pressure hose.

[0028] The connecting rod 7 is provided with a scale.

[0029] like Figure 5 As shown, the end cover 4 is provided with a measuring claw 15 , and the measuring claw 15 is arranged corresponding to the scale on the connecting rod 7 .

[0030] The working process is as follows: After the asphalt is delivered to the conveying cylinder 1, the inlet 2 is closed. Figure 2As shown, the height of the telescopic legs 11 is adjusted to make the right end of the conveying cylinder 1 higher than the left end, the air outlet 5 is opened, the discharge port 3 is closed, the piston 6 is appropriately pushed forward, and the air in the conveying cylinder 1 is driven out through the air outlet 5, so that the asphalt is filled between the inner wall of the conveying cylinder 1 and the piston 6, the air outlet 5 is closed, the discharge port 3 is opened, and the piston 6 is continuously pushed forward, and the asphalt is sent out from the discharge port 3 to the stirring and mixing device for mixing asphalt concrete. The pushed distance of the piston 6 is calculated according to the scale on the connecting rod 7, and the volume of the asphalt pushed out can be obtained, and the mass of the asphalt sent out can be obtained from the asphalt density and volume. The utility model can realize quantitative feeding when mixing asphalt and additives.

[0031] When all the asphalt in the delivery cylinder 1 is delivered, Figure 3 As shown, the piston 6 is reset, and carbon disulfide is sprayed out through the spray port 13 to flush the inner wall of the conveying cylinder 1. At the same time, the piston 6 is controlled to reciprocate to further improve the flushing effect. Then the height of the telescopic leg 11 is lowered so that the left end of the conveying cylinder 1 is higher than the right end, and the dirty liquid after flushing is discharged from the drain port 16.

Claims

1. A low rolling resistance asphalt feeding device, comprising a conveying cylinder (1), characterized in that: The conveying cylinder (1) is a horizontal cylindrical structure. The tops of the left and right ends of the conveying cylinder (1) are respectively provided with a material inlet (2) and a material outlet (3). The outer side of the leftmost end of the conveying cylinder (1) is detachably covered with an end cover (4). The top of the rightmost end of the conveying cylinder (1) is provided with an air outlet (5). A piston (6) is provided inside the conveying cylinder (1). When the piston (6) moves to the leftmost side of the conveying cylinder (1), the material inlet (2) is located on the right side of the piston (6). One end of the piston (6) is connected to the pressure rod of the hydraulic cylinder through a connecting rod (7). The connecting rod (7) movably passes through the end cover (4) at the leftmost end of the conveying cylinder (1). The lower parts of the left and right ends of the conveying cylinder (1) are respectively provided with a left supporting leg (8) and a right supporting leg (9). The lower end of the left supporting leg (8) is hinged to a fixed supporting leg (10), and the lower end of the right supporting leg (9) is hinged to a telescopic supporting leg (11). The bottom of the telescopic supporting leg (11) is provided with a lockable pulley (12).

2. The low rolling resistance asphalt feeding device according to claim 1, characterized in that: The piston (6) is provided with a liquid spraying port (13), which is connected to a liquid delivery pipe (14); and a liquid discharge port (16) is provided at the bottom of one end of the material discharge port (3) of the conveying cylinder (1).

3. The low rolling resistance asphalt feeding device according to claim 2, characterized in that: The liquid delivery pipe (14) is connected to the high-pressure pump.

4. The low rolling resistance asphalt feeding device according to claim 2, characterized in that: The liquid delivery pipe (14) is a high-pressure hose.

5. The low rolling resistance asphalt feeding device according to claim 1, characterized in that: The connecting rod (7) is provided with a scale.

6. The low rolling resistance asphalt feeding device according to claim 5, characterized in that: The end cover (4) is provided with a measuring claw (15), and the measuring claw (15) is arranged corresponding to the scale on the connecting rod (7).

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