Foamed asphalt foaming device

Abstract

The utility model discloses a foamed asphalt foaming device which comprises a foaming cylinder body, a feeding hopper is arranged at the top of the foaming cylinder body, a feeding pipe is arranged at the bottom of the feeding hopper, a metering pump is arranged on the feeding pipe, a water inlet system is arranged on the outer side wall of the foaming cylinder body, the water inlet system comprises a water inlet pipe and a water inlet valve, and the water inlet pipe is connected with the water inlet valve. The water inlet valve is arranged on the water inlet pipe and used for controlling water outlet of the water inlet pipe, a stirring assembly is arranged in the foaming cylinder, a heating assembly is further arranged on the inner wall of the foaming cylinder, and a discharging opening is formed in the bottom of the foaming cylinder and used for discharging foamed asphalt. The foaming device is convenient for accurately controlling the foaming effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to road construction material processing technical field especially is involved in a foamed bitumen foaming device. BACKGROUND

[0002] At present, in the road construction and maintenance, foamed bitumen as an important material is widely used in the pavement and repair of the road. In the preparation process of foamed bitumen, bitumen, water and gas need to be mixed and foamed to obtain ideal construction material. However, the traditional foaming equipment has problems in operation complexity, unstable foaming effect and the like.

[0003] There are some bitumen foaming equipment on the market, but they often cannot accurately control the mixing ratio of bitumen and water during operation, resulting in poor foaming effect and affecting the construction quality. In addition, the structure of these equipment is complex, the maintenance cost is high, and it is not conducive to large-scale application. Therefore, how to design a foamed bitumen foaming device with simple structure, convenient operation and accurate control of foaming effect has become a problem to be solved in the current road engineering field. SUMMARY

[0004] The application provides a foamed bitumen foaming device which is convenient for accurately controlling foaming effect.

[0005] The application provides a foamed bitumen foaming device which adopts the following technical scheme:

[0006] A foamed bitumen foaming device, comprising a foaming cylinder, a feed hopper is arranged at the top of the foaming cylinder, a feed pipe is arranged at the bottom of the feed hopper, a metering pump is arranged on the feed pipe, a water inlet system is arranged on the outer side wall of the foaming cylinder, the water inlet system comprises a water inlet pipe and a water inlet valve, the water inlet valve is arranged on the water inlet pipe and is used for controlling the water outlet of the water inlet pipe, a stirring assembly is arranged in the foaming cylinder, a heating assembly is further arranged on the inner wall of the foaming cylinder, and a discharge port is arranged at the bottom of the foaming cylinder and is used for discharging foamed bitumen.

[0007] By adopting the above technical scheme, the foamed bitumen foaming device designed by the utility model is used to add bitumen from the feed hopper at the top of the foaming cylinder, the bitumen enters the feed pipe from the feed hopper, the amount of bitumen is accurately controlled through the metering pump on the feed pipe, water is added through the water inlet system arranged on the outer side wall of the foaming cylinder to fully mix with the bitumen, foaming is performed, at the same time, the stirring assembly arranged in the foaming cylinder can accelerate the foaming of water and bitumen, the heating assembly arranged on the inner wall of the foaming cylinder controls the foaming effect by accurately controlling the temperature, and finally, the foamed bitumen is collected from the discharge port.

[0008] Preferably, the water inlet pipe is communicated with the foaming barrel, the water inlet pipe is provided with an annular water spraying pipe at one end of the foaming barrel, the annular water spraying pipe is fixed to the inner wall of the foaming barrel, and a plurality of water spraying holes are arranged on the annular water spraying pipe.

[0009] By adopting the above technical scheme, when in use, water enters the foaming barrel from the water inlet pipe, and then is uniformly sprayed on the asphalt by the annular water spraying pipe communicated with the water inlet pipe and the water spraying holes on the annular water spraying pipe, thereby improving the foaming effect.

[0010] Preferably, the foaming barrel is provided with a pressure regulator, the pressure regulator is respectively communicated with the inner and outer sides of the foaming barrel, and the air pressure is controlled by adjusting the airflow of the foaming barrel.

[0011] By adopting the above technical scheme, in the foaming process, the air pressure in the foaming barrel is controlled by the pressure regulator on the foaming barrel, thereby further controlling the foaming effect.

[0012] Preferably, the stirring assembly comprises a rotating shaft and stirring blades arranged in the foaming barrel, the rotating shaft is driven to rotate by a driving mechanism, and the stirring blades are fixed to the rotating shaft and rotate to stir the mixture of asphalt and water.

[0013] By adopting the above technical scheme, in use, the mixture of asphalt and water is stirred by driving the rotating shaft to rotate by the driving mechanism, and then driving the stirring blades to rotate.

[0014] Preferably, the driving mechanism comprises a servo motor fixed to the top of the foaming barrel, the output shaft of the servo motor penetrates the foaming barrel, and is fixed to one end of the rotating shaft.

[0015] By adopting the above technical scheme, in use, the servo motor arranged at the top of the foaming barrel is fixed to the rotating shaft, thereby driving the rotating shaft to rotate, and the servo motor can accurately control the rotating speed.

[0016] Preferably, the heating assembly comprises electric heating wires arranged on the inner wall of the foaming barrel, and the electric heating wires are used to increase the temperature of the inner wall of the foaming barrel.

[0017] By adopting the above technical scheme, in use, a plurality of electric heating wires are arranged on the inner wall of the foaming barrel, and the electric heating wires can be connected with an external control system, thereby accurately controlling the temperature inside the foaming barrel.

[0018] Preferably, an insulating layer is arranged outside the foaming barrel, and is used to reduce the heat loss of the foaming barrel.

[0019] By adopting the above technical scheme, in use, the insulating layer arranged outside the foaming barrel is used to reduce the heat loss inside the foaming barrel.

[0020] Preferably, the end of the discharge port is connected with a discharge pipe, and a switch valve is arranged on the discharge pipe, so as to facilitate controlling the discharge of the asphalt at any time, and the end of the discharge pipe is used for connecting a sealing cover.

[0021] By adopting the technical scheme, in use, the switch valve is opened, and the foamed asphalt is discharged for collection, and when the discharge pipe is not used, the sealing cover is used to seal the discharge pipe.

[0022] To sum up, the application has the following beneficial effects:

[0023] 1. The foamed asphalt foaming device is designed, the metering pump is adopted to accurately control the feeding amount of the asphalt, accurate control of the water inlet system is matched, accurate adjustment of the mixing ratio of the asphalt and water is realized, and therefore the stability of the foaming quality is improved.

[0024] 2. The foamed asphalt foaming device is designed, the annular water spraying pipe and the plurality of water spraying holes are preferably adopted, so that the water flow can be uniformly sprayed in the foaming cylinder body and fully mixed with the asphalt, and the foaming effect is further improved.

[0025] 3. The foamed asphalt foaming device is designed, the pressure regulator and the heating assembly are arranged, the foaming process can be accurately controlled in terms of air pressure and temperature, the smooth progress of the foaming process is ensured, and the foaming efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of an embodiment;

[0027] Figure 2 It is a side view of an embodiment;

[0028] Figure 3 It is a top view of an embodiment;

[0029] Mark 1, foaming cylinder body; 2, feeding hopper; 3, feeding pipe; 4, metering pump; 5, water inlet system; 51, water inlet pipe; 52, water inlet valve; 6, stirring assembly; 61, rotating shaft; 62, stirring blade; 63, driving mechanism; 631, servo motor; 7, heating assembly; 71, electric heating wire; 8, discharge port; 9, annular water spraying pipe; 10, water spraying hole; 11, pressure regulator; 12, heat preservation layer; 13, discharge pipe; 14, switch valve. DETAILED DESCRIPTION

[0030] The utility model discloses a foamed asphalt foaming device, such as

[0031] The utility model discloses a foamed asphalt foaming device, such as Figure 1 And Figure 2 As shown in the drawing, including foaming cylinder 1, foaming cylinder 1's top is provided with feed hopper 2, and the bottom of feed hopper 2 is provided with feed pipe 3, and the feed pipe 3 is provided with metering pump 4, which is used for accurately controlling the feed amount of asphalt, and the outer side wall of foaming cylinder 1 is provided with water inlet system 5, and the water inlet system 5 includes water inlet pipe 51 and water inlet valve 52, and the water inlet valve 52 is arranged on the water inlet pipe 51 and is used for controlling the water outlet of water inlet pipe 51, and the water inlet pipe 51 is communicated with the foaming cylinder 1, and the water inlet pipe 51 is arranged at one end of the foaming cylinder 1 and is communicated with annular water spraying pipe 9, and the annular water spraying pipe 9 is fixedly connected to the inner wall of the foaming cylinder 1, and a plurality of water spraying holes 10 are arranged on the annular water spraying pipe 9. The foaming cylinder 1 is provided with pressure regulator 11, and the pressure regulator 11 is respectively communicated with the inner and outer sides of the foaming cylinder 1, and the air pressure is controlled by adjusting the airflow of the foaming cylinder 1.

[0032] The foaming cylinder 1 is provided with stirring assembly 6, and the stirring assembly 6 includes rotating shaft 61 arranged in the foaming cylinder 1 and stirring blade 62, the rotating shaft 61 is driven to rotate through driving mechanism 63, the stirring blade 62 is fixed on the rotating shaft 61, and the rotating shaft 61 rotates to stir the mixture of asphalt and water, the stirring blade 62 adopts a special shape, such as spiral or curved, to increase the turbulent effect in the stirring process, and further improve the mixing effect of asphalt and water, in addition, the number and arrangement of stirring blade 62 can also be optimized to realize more uniform mixing effect, and the driving mechanism 63 of adjustable speed is adopted in stirring assembly 6, the rotating speed of rotating shaft 61 can be adjusted according to actual needs, and the driving mechanism 63 of adjustable speed includes frequency converter and servo motor 631, the frequency converter is used for adjusting the output frequency of servo motor 631, so as to change the rotating speed of rotating shaft 61, and this design can make the stirring process more flexible, and the stirring speed can be adjusted in real time according to the mixing condition of asphalt and water, so as to improve the mixing effect and foaming quality.

[0033] Referring to Figure 3The inner wall of the foaming barrel 1 is further provided with a heating assembly 7, the heating assembly 7 comprises an electric heating wire 71 arranged on the inner wall of the foaming barrel 1, the electric heating wire 71 is used for improving the temperature of the inner wall of the foaming barrel 1, the electric heating wire 71 can adopt a partition control mode, and the heating power is adjusted according to the foaming conditions of different regions, so that more uniform temperature distribution is realized, the foaming barrel 1 adopts a multi-layer structure design, the innermost layer is used for containing the mixture of asphalt and water, the heat preservation layer 12 is arranged at the outer layer of the foaming barrel 1, is used for reducing heat loss, improves energy utilization efficiency, simultaneously, the outer layer of the foaming barrel 1 plays a protection role, prevents the foaming barrel 1 from being damaged by the external environment, and the design can make the foaming process more energy-saving and efficient, and prolong the service life of the foaming device.

[0034] With reference to Figure 2 The bottom of the foaming barrel 1 is provided with a discharge port 8 for discharging foamed asphalt, the end of the discharge port 8 is connected with a discharge pipe 13, the discharge pipe 13 is provided with an on-off valve 14, so that the discharge of asphalt can be controlled at any time, and the end of the discharge pipe 13 is used for connecting a sealing cover.

[0035] Working principle: the foamed asphalt foaming device designed in the utility model is used, first, the feeding amount of asphalt is accurately controlled through the metering pump 4, the water inlet valve 52 is opened at the same time, water enters the annular water spraying pipe 9 through the water inlet pipe 51 and is uniformly sprayed in the foaming barrel 1 from the water spraying hole 10, then the servo motor 631 is started, the rotating shaft 61 and the stirring blade 62 are driven to rotate, and the mixture of asphalt and water is fully stirred. At the same time, the inner wall of the foaming barrel 1 is heated by the electric heating wire 71, the temperature of the mixture is improved, so that the foaming process is promoted. When the foaming is completed, the on-off valve 14 is opened, and the foamed asphalt is discharged through the discharge pipe 13. During the whole process, the air pressure in the foaming barrel 1 can be adjusted in real time through the pressure regulator 11, so that the stability of the foaming process is ensured.

[0036] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A foamed bitumen foaming apparatus characterised in that: The utility model provides a foaming barrel (1), the top of foaming barrel (1) is provided with feed hopper (2), the bottom of feed hopper (2) is provided with feed pipe (3), be provided with metering pump (4) on feed pipe (3), the outside wall of foaming barrel (1) is provided with water inlet system (5), water inlet system (5) includes water inlet pipe (51) and water inlet valve (52), water inlet valve (52) is arranged on water inlet pipe (51) and is used for controlling the water of water inlet pipe (51) to go out, be provided with stirring assembly (6) in foaming barrel (1), heating assembly (7) is also provided on the inner wall of foaming barrel (1), the bottom of foaming barrel (1) is provided with discharge port (8) and is used for discharging the asphalt after foaming.

2. The foamed asphalt foaming apparatus according to claim 1, characterized in that: The water inlet pipe (51) is communicated with the foaming barrel (1), and the water inlet pipe (51) is arranged at one end of the foaming barrel (1) and is communicated with the annular water spraying pipe (9), the annular water spraying pipe (9) is fixedly connected to the inner wall of the foaming barrel (1), and a plurality of water spraying holes (10) are arranged on the annular water spraying pipe (9).

3. The foamed asphalt foaming apparatus of claim 1, wherein: The foaming barrel (1) is provided with a pressure regulator (11), which is respectively communicated with the inner and outer sides of the foaming barrel (1), and the air pressure is controlled by adjusting the airflow of the foaming barrel (1).

4. The foamed asphalt foaming apparatus of claim 1, wherein: The stirring assembly (6) includes a rotating shaft (61) and stirring blades (62) arranged in the foaming barrel (1), the rotating shaft (61) is driven to rotate by a driving mechanism (63), and the stirring blades (62) are fixed to the rotating shaft (61) and rotate with the rotating shaft (61) to stir the mixture of asphalt and water.

5. A foamed bitumen foaming device according to claim 4, wherein: The driving mechanism (63) includes a servo motor (631) fixed to the top of the foaming barrel (1), the output shaft of the servo motor (631) penetrates the foaming barrel (1), and is fixed to one end of the rotating shaft (61).

6. The foamed asphalt foaming apparatus of claim 1, wherein: The heating assembly (7) includes an electric heating wire (71) arranged on the inner wall of the foaming barrel (1), and the electric heating wire (71) is used to raise the temperature of the inner wall of the foaming barrel (1).

7. The foamed asphalt foaming apparatus of claim 1, wherein: The outer part of the foaming barrel (1) is provided with a heat preservation layer (12) for reducing heat loss of the foaming barrel (1).

8. The foamed asphalt foaming apparatus of claim 1, wherein: The end of the discharge port (8) is connected with a discharge pipe (13), the discharge pipe (13) is provided with an on-off valve (14), which can control the discharge of asphalt at any time, and the end of the discharge pipe (13) is used for connecting a sealing cover.

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