CN219117883U

CN219117883U - Asphalt mortar production equipment based on asphalt pavement reclaimed materials

Info

Publication number: CN219117883U
Application number: CN202320178895.2U
Authority: CN
Inventors: 杨晓第; 殷作耀; 傅章敏; 许�鹏; 王杨; 陈俊杰
Original assignee: Fujian Tietuo Machinery Co Ltd
Current assignee: Fujian Tietuo Machinery Co Ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-06-02
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses asphalt mortar production equipment based on asphalt pavement reclaimed materials, which belongs to the technical field of asphalt production equipment and comprises a material adding device, a stirring device, an asphalt mortar conveying device and an asphalt mortar storage tank, wherein the material adding device comprises an aged asphalt powder storage cylinder, an oil-containing fine aggregate storage cylinder, a regenerant metering cylinder and an asphalt metering cylinder which are respectively connected with the stirring device, the asphalt mortar conveying device is arranged below the stirring device, the feeding end of the asphalt mortar conveying device is in butt joint with the discharge opening of the stirring device, and the discharge end of the asphalt mortar conveying device is connected with the asphalt mortar storage tank through a mortar conveying pipeline. According to the utility model, the asphalt mortar conveying device is arranged below the stirring device, so that the asphalt mortar storage tank can be arranged beside the stirring device, the height of asphalt mortar production equipment in the vertical direction is reduced, the installation difficulty of the equipment is greatly reduced, and the overhaul and maintenance of operators are facilitated.

Description

Asphalt mortar production equipment based on asphalt pavement reclaimed materials

Technical Field

The utility model relates to the technical field of asphalt production equipment, in particular to asphalt mortar production equipment based on asphalt pavement reclaimed materials.

Background

The plant-mixed heat recycling technology is a recycling method of asphalt pavement reclaimed materials which are most widely applied at present. At present, in a plant-mixed thermal regeneration process, an asphalt pavement reclaimed material (RAP for short) and new aggregate are heated respectively and independently, then the RAP and the new aggregate are mixed in a stirring cylinder, and then new asphalt is added and mixed to obtain a regenerated asphalt mixture. The traditional hot-mix plant re-speaking process mainly has the following defects: 1. the new aggregate in the regenerated asphalt mixture and RAP are wrapped by asphalt to different degrees, and the phenomenon of white flowers occurs; 2. the new asphalt and the aged asphalt in the RAP cannot be completely fused and uniformly wrapped on the new and old aggregates, so that the RAP performance cannot be effectively improved, and the quality of the reclaimed asphalt mixture is affected; 3. after the RAP is crushed and separated, the content of asphalt in the fine aggregate is high, and the asphalt is easy to adhere to equipment in the preheating process of a heating and drying roller, so that the uniformity and the production efficiency of mixing are seriously affected.

In order to solve the problems, the Chinese patent application publication No. CN 110540383A discloses a regenerated asphalt mortar, which is prepared by the following steps: 1) Adding the weighed oil-rich fine aggregate and the regenerant into a mixing pot, and forcibly stirring until the mixture is uniform; 2) Taking the product obtained in the step 1) out of the pot, storing in a special development bin with stirring, and developing under the specific temperature and time conditions, thus obtaining the finished product of regenerated asphalt sand after the development is completed.

Because the rich fine aggregate and the regenerant are stirred to form mortar substances, if the development bin is directly arranged under the mixing pot, the vertical height of the whole production equipment is increased, so that the equipment is difficult to install and is inconvenient to overhaul and maintain. To this end, we provide an asphalt cement production facility based on asphalt pavement reclaimed materials.

Disclosure of Invention

The utility model provides asphalt mortar production equipment based on asphalt pavement reclaimed materials, which mainly aims to overcome the defects that the equipment is difficult to install, is inconvenient to overhaul and maintain and the like caused by larger height of the asphalt mortar production equipment.

The utility model adopts the following technical scheme:

the utility model provides an asphalt mortar production facility based on bituminous paving reclaimed materials, includes material interpolation device, agitating unit, asphalt mortar conveyor and asphalt mortar holding vessel, material interpolation device include respectively with ageing asphalt powder storage cylinder, oily fine aggregate storage cylinder, regenerant metering cylinder and the asphalt metering cylinder that agitating unit is connected, asphalt mortar conveyor locates agitating unit's below, this asphalt mortar conveyor's feed end with agitating unit's discharge opening dock, asphalt mortar conveyor's discharge end pass through mortar pipeline with asphalt mortar holding vessel is connected.

In a preferred embodiment, the asphalt mortar conveying device comprises a shell, a hydraulic mechanism, a steering pipe joint and a cylinder pushing assembly, wherein the hydraulic mechanism comprises two hydraulic straws arranged in the shell, the steering pipe joint comprises a fixed end and a steering end, the fixed end is connected with a mortar conveying pipeline, and the steering end is pushed by the cylinder pushing assembly to be alternatively butted with the two hydraulic straws.

Further, a swing arm is fixedly connected to the steering end of the steering pipe joint, the air cylinder pushing assembly comprises two air cylinders which are arranged in opposite directions, and the piston end of each air cylinder is correspondingly connected with two sides of the swing arm respectively.

Further, a stirring mechanism is also arranged in the shell.

Further, above-mentioned agitating unit includes stirring cylinder body, (mixing) shaft, stirring vane and motion stick, be equipped with the conduction oil intermediate layer in the lateral wall of stirring cylinder body, the (mixing) shaft has along its axial upper interval staggered arrangement a plurality of stirring vane, the motion stick is located stirring vane's end with between the inner wall of stirring cylinder body.

Further, a stirring paddle is also arranged in the asphalt mortar storage tank.

As can be seen from the above description of the structure of the present utility model, compared with the prior art, the present utility model has the following advantages:

1. according to the utility model, the asphalt mortar conveying device is arranged below the stirring device, and the discharge end of the asphalt mortar conveying device is connected with the asphalt mortar storage tank through the mortar conveying pipeline, so that the asphalt mortar storage tank can be arranged beside the stirring device, the height of asphalt mortar production equipment in the vertical direction is reduced, the installation difficulty of the equipment is greatly reduced, and the overhaul and maintenance of operators are also facilitated.

2. The asphalt mortar conveying device is provided with two hydraulic suction pipes, and the movable end of the steering pipe joint is pushed by the cylinder pushing assembly to be in butt joint with the two hydraulic suction pipes alternately, wherein the hydraulic suction pipes which are not in butt joint with the steering pipe joint are used for sucking asphalt mortar, and the hydraulic suction pipes which are in butt joint with the steering pipe joint are used as conveying pipes; the two hydraulic suction pipes repeatedly and alternately suck asphalt mortar into the mortar conveying pipeline, and then the asphalt mortar is conveyed into the asphalt mortar storage tank through the mortar conveying pipeline. Therefore, the asphalt mortar conveying device can quickly and efficiently convey asphalt mortar to the asphalt mortar storage tank.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a cross-sectional view of the stirring device of the present utility model.

Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 2.

FIG. 4 is a top view of the asphalt mortar delivery mechanism of the present utility model.

Fig. 5 is a left side view of fig. 4.

Detailed Description

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present utility model, but it will be apparent to one skilled in the art that the present utility model may be practiced without these details. Well-known components, methods and procedures are not described in detail.

An asphalt mortar production device based on asphalt pavement reclaimed materials, referring to fig. 1, comprises a material adding device, a stirring device 2, an asphalt mortar conveying device 3 and an asphalt mortar storage tank 4. The material adding device comprises an aged asphalt powder storage cylinder 11, an oil-containing fine aggregate storage cylinder 12, a regenerant metering cylinder 13 and an asphalt metering cylinder 14. Wherein the oil-rich fine aggregate is separated into aged asphalt powder and oil-containing fine aggregate by screening, the aged asphalt powder is stored in the aged asphalt powder storage cylinder 11, and the oil-containing fine aggregate is stored in the oil-containing fine aggregate storage cylinder 12. In order to ensure smooth blanking, arch breaking devices are arranged in the aged asphalt powder storage cylinder 11 and the oil-containing fine aggregate storage cylinder 12. A metering system is also arranged in the aged asphalt powder storage cylinder 11, and a fine aggregate metering device 121 is arranged below the oil-containing fine aggregate storage cylinder 12. The arch breaking device, the metering system and the fine aggregate metering device are all commonly used in the art, and the embodiment is not described in detail.

The wall of the regenerant metering cylinder 13 and the wall of the asphalt metering cylinder 14 are respectively provided with an insulating layer so as to ensure the temperature of asphalt and regenerant. Because the temperature of the regenerant is required to be relatively high, a heating pipe can be arranged in the regenerant metering barrel 13 for heating.

Referring to fig. 2 and 3, the stirring device 2 includes a stirring cylinder 21, a stirring shaft 22, stirring blades 23, and a moving rod 24, and a heat-conducting oil interlayer is disposed in the sidewall of the stirring cylinder 21 to ensure the temperature of the stirring device. The top of the middle section of the stirring cylinder body 21 is provided with a feed inlet 211, and the bottom of the middle section is provided with a discharge outlet 212.

Referring to fig. 2 and 3, the stirring shaft 22 is provided with a plurality of stirring blades 23 alternately arranged at intervals in the axial direction thereof, wherein the stirring blades 23 are divided into left-hand blades and right-hand blades. Left-hand blades are arranged on the stirring shafts 22 corresponding to the left side of the feed inlet 211 at intervals, and right-hand blades are arranged on the stirring shafts 22 corresponding to the right side of the feed inlet 211 at intervals. The left and right blades at the two ends of the stirring shaft 22 are shaped blades, and the other left and right blades are pulp blades. When the stirring shaft 22 rotates, the materials firstly move to two sides and then move to the middle under the action of the stirring blades 23, so that the materials are always in a uniform stirring state.

Referring to fig. 3, a moving rod 24 is provided between the end of the stirring blade 23 and the inner wall of the stirring cylinder 21, and a stainless steel rod is preferably used for the moving rod 24. The stainless steel rod moves up and down continuously in the process of rotating the stirring shaft 22, and vibrates the asphalt slurry adhered to the inner wall of the stirring cylinder 21 to prevent the asphalt slurry from being adhered.

Referring to fig. 1, 4 and 5, the asphalt mortar conveying device 3 is disposed below the stirring device 2, the asphalt mortar conveying device 3 includes a housing 31, a hydraulic mechanism, a steering pipe joint 33, and a cylinder pushing assembly, and a feeding end is disposed at the top of the housing 31 and connected to a discharge port 212. The hydraulic mechanism comprises two hydraulic suction pipes 32 arranged in the shell, and the steering pipe joint 33 comprises a fixed end 331 and a steering end 332, wherein the fixed end 331 is connected with the asphalt mortar storage tank 4 through a mortar conveying pipeline 35, and the steering end 332 is pushed by an air cylinder pushing component to be in alternate butt joint with the two hydraulic suction pipes 32.

Referring to fig. 4 and 5, a swing arm 333 is fixedly connected to the steering end 332 of the steering pipe joint 33, the cylinder pushing assembly includes two opposite cylinders 34, the cylinder body of each cylinder 34 is hinged to the housing 31, and the piston ends are respectively connected to two sides of the swing arm 333. The swing arm 333 is pushed to rotate by the two cylinders 34, so that the steering end 332 of the steering pipe joint 33 is driven to swing, and the steering end is alternately butted with the two hydraulic suction pipes 32.

Referring to fig. 4, in order to prevent segregation and precipitation of asphalt mortar, stirring mechanisms 36 are symmetrically installed at both front and rear sides in the housing 31, respectively.

Referring to fig. 1, the asphalt mortar storage tank 4 is also provided with a stirring slurry 41 inside the tank, and the asphalt mortar in the tank is continuously stirred to ensure the performance of the mortar.

The production flow of the asphalt mortar production equipment is as follows:

the aged asphalt powder in the aged asphalt powder storage cylinder and the regenerant in the regenerant metering cylinder are respectively delivered into a stirring device after being precisely metered, the activity of the regenerant and the mixing effect of raw materials to be mixed are improved through stirring, the infiltration and the miscibility of the regenerant and the aged asphalt are enhanced, and the recovery of the viscosity of the aged asphalt at the temperature of 120-130 ℃ is realized; and then the oil-containing fine aggregate storage cylinder and the asphalt metering cylinder are respectively filled with the oil-containing fine aggregate and the new asphalt which are metered, and the oil-containing fine aggregate storage cylinder and the asphalt metering cylinder are put into a stirring device to be continuously stirred to form asphalt mortar. Asphalt mortar is placed into the asphalt mortar conveying device through the discharge opening of the stirring device, and is conveyed into the asphalt mortar storage tank through the asphalt mortar conveying device and the mortar conveying pipeline.

In addition, referring to fig. 1, the asphalt mortar production apparatus of the present utility model further includes an additive storage tank 5. After the asphalt mortar is metered, the asphalt mortar is mixed with the additive in the additive storage cylinder 5 to form the finished asphalt mortar meeting the requirements.

The foregoing is merely illustrative of specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the design concept shall fall within the scope of the present utility model.

Claims

1. Asphalt mortar production facility based on bituminous paving reclaimed materials, its characterized in that: including material interpolation device, agitating unit, pitch mortar conveyor and pitch mortar holding vessel, material interpolation device include respectively with ageing pitch powder storage cylinder, oily fine aggregate storage cylinder, regenerant metering cylinder and pitch metering cylinder that agitating unit is connected, pitch mortar conveyor locates agitating unit's below, this pitch mortar conveyor's feed end with agitating unit's discharge opening dock, pitch mortar conveyor's discharge end pass through mortar conveying pipeline with pitch mortar holding vessel is connected.

2. An asphalt mortar production facility based on asphalt pavement reclaimed materials as defined in claim 1, wherein: the asphalt mortar conveying device comprises a shell, a hydraulic mechanism, a steering pipe joint and an air cylinder pushing assembly, wherein the hydraulic mechanism comprises two hydraulic straws arranged in the shell, the steering pipe joint comprises a fixed end and a steering end, the fixed end is connected with a mortar conveying pipeline, and the steering end is pushed by the air cylinder pushing assembly and is in alternate butt joint with the two hydraulic straws.

3. An asphalt mortar production facility based on asphalt pavement reclaimed materials as defined in claim 2, wherein: the steering end of the steering pipe joint is fixedly connected with a swinging arm, the air cylinder pushing assembly comprises two air cylinders which are arranged in opposite directions, and the piston end of each air cylinder is correspondingly connected with two sides of the swinging arm respectively.

4. An asphalt mortar production facility based on asphalt pavement reclaimed materials as defined in claim 2, wherein: and a stirring mechanism is also arranged in the shell.

5. An asphalt mortar production facility based on asphalt pavement reclaimed materials as defined in claim 1, wherein: the stirring device comprises a stirring cylinder body, a stirring shaft, stirring blades and a moving rod, wherein a heat conducting oil interlayer is arranged in the side wall of the stirring cylinder body, the stirring blades are arranged on the stirring shaft at intervals along the axial direction of the stirring shaft in a staggered mode, and the moving rod is arranged between the tail ends of the stirring blades and the inner wall of the stirring cylinder body.

6. An asphalt mortar production facility based on asphalt pavement reclaimed materials as defined in claim 1, wherein: and a stirring paddle is also arranged in the asphalt mortar storage tank.