Asphalt foaming device
The utility model relates to a pitch processing technology field, especially a pitch foaming device.
The asphalt foaming is a technology of mixing a small amount of water into high-temperature liquid asphalt, and instantly gasifying the water when the water contacts the high-temperature asphalt to form a large amount of bubbles in the asphalt so as to form foamed asphalt. In recent years, as the foamed asphalt has low viscosity and large volume, the temperature of the mixture can be reduced, the energy loss can be effectively saved, and the construction quality of uniform stirring and subsequent transportation, rolling and the like can be ensured, so that the asphalt foaming technology is more and more widely valued.
Asphalt foaming device among the prior art includes the asphalt foaming pipe, and the asphalt foaming pipe concatenates on pitch pipeline, and its inside shower nozzle that sets up and water supply system intercommunication realizes the foaming of pitch through the shower nozzle to the pitch injection high pressure water in the transport, and the area of contact of the water of shower nozzle injection and pitch is little in the pipe-line transportation, and the mixed effect of water and pitch is poor, leads to foaming inhomogeneous.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to overcome the defects of the prior art and provide an asphalt foaming device which can make asphalt foam uniformly.
The utility model adopts the following technical scheme:
the utility model provides an asphalt foaming device, including the asphalt foaming pipe, high pressure water pipe, atomizer, spiral nozzle, the asphalt foaming pipe includes the foaming pipeline section of following asphalt direction of delivery and arranging in proper order, throat pipeline section and mixed pipeline section, the pipe diameter of throat pipeline section is less than the pipe diameter of foaming pipeline section, water supply installation output stretches into in the foaming pipeline section is connected to high pressure water pipe input, atomizer sets up the output at high pressure water pipe, spiral nozzle sets up on mixed pipeline section, the pitch in the mixed pipeline section is followed spiral nozzle output, spiral nozzle has the helicitic texture that can make pitch produce the vortex.
Further, the output end of the high-pressure water pipe extends along the central axis of the foaming pipe section and faces away from the flow direction of the asphalt.
Furthermore, the foaming pipe section and the necking pipe section are transited through a conical pipe section.
Further, the pipe diameter of the mixing pipe section is larger than that of the necking pipe section and is smaller than that of the foaming pipe section.
Furthermore, the mixing pipe section and the necking pipe section are transited through a conical pipe section.
Further, an asphalt pump for pumping asphalt to the foamed pipe section is also included.
Further, the device also comprises a first pressure gauge arranged on the foaming pipe section, a second pressure gauge arranged on the high-pressure water pipe and a third pressure gauge arranged on the mixing pipe section.
Further, the atomizer is disposed in the foam tube section adjacent to the throat section.
It can be known from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: the output end of the high-pressure water pipe is provided with the atomizing nozzle, so that water flow is in fog contact with asphalt, the contact area is increased, and the foaming efficiency and the foaming uniformity of the asphalt are improved; a necking pipe section is arranged between the foaming pipe section and the mixing pipe section, so that the pressure of the asphalt pipeline after the first foaming reaches a stable state, and the uniform mixing of the foaming is facilitated; the first, second and third pressure gauges arranged on the asphalt pipeline and the high-pressure water pipe can clearly express the pressure condition in each pipeline in each time period, so that the adjustment can be conveniently and timely made, and the pressure in the asphalt pipeline is stabilized; the asphalt nozzle with the spiral structure arranged on the mixing pipeline enables the foamed asphalt to generate vortex, and the foaming effect of the asphalt can be improved.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
fig. 2 is a sectional view showing the overall structure of the spiral nozzle of the present invention, in which the flow direction of foamed asphalt is shown.
In the figure: 1. the asphalt foaming pipe comprises an asphalt foaming pipe body, 10 foaming pipe sections, 11 necking pipe sections, 12 mixing pipe sections, 13 conical pipe sections, 2 high-pressure water pipes, 3 atomizing spray heads, 4 spiral spray heads, 40 spiral structures, 5 asphalt pumps, 6 first pressure meters, 7 second pressure meters and 8 third pressure meters.
The present invention will be further described with reference to the following detailed description.
Referring to fig. 1 to 2, the utility model discloses an asphalt foaming device, including asphalt foaming pipe 1, high pressure water pipe 2, atomizer 3, spiral nozzle 4, asphalt foaming pipe 1 includes the foaming pipeline section 10 of arranging in proper order along pitch direction of delivery, throat pipeline section 11 and mixed pipeline section 12, the pipe diameter of throat pipeline section 11 is less than the pipe diameter of foaming pipeline section 10, pass through conic tube section 13 between foaming pipeline section 10 and the throat pipeline section 11 and pass through, water supply installation output stretches into in the foaming pipeline section 10 is connected to high pressure water pipe 2 input, and the output extends and asphalt flow direction dorsad along the central axis of foaming pipeline section 10, atomizer 3 sets up in the foaming pipeline section 10 that is close to throat pipeline section 11 and installs on high pressure water pipe 2's output.
The spiral nozzle 4 is arranged on the mixing pipe section 12, the asphalt in the mixing pipe section 12 is output from the spiral nozzle 4, the spiral nozzle 4 is provided with a spiral structure 40 which can enable the asphalt to generate vortex, the pipe diameter of the mixing pipe section 12 is larger than that of the necking pipe section 11 and is smaller than that of the foaming pipe section 10, and the mixing pipe section and the necking pipe section are transited through the conical pipe section 13.
The asphalt mixing device further comprises an asphalt pump 5 for pumping asphalt to the foaming pipe section, a first pressure gauge 6 arranged on the foaming pipe section, a second pressure gauge 7 arranged on the high-pressure water pipe, and a third pressure gauge 8 arranged on the mixing pipe section. .
Referring to fig. 1 to 2, the utility model discloses during operation, start pitch pump 5 to pitch foaming pipe 1 pump sending pitch, then open water supply installation, make water pass through high pressure water pipe 2 and carry into pitch foaming pipe 1, the atomizer 3 that the 2 outputs of high pressure water pipe set up is vaporific water that sprays into pitch foaming pipe 1 with 2 transport of high pressure water pipe, and pitch and water are in the contact of foaming pipeline section 10 and foaming.
Foamed asphalt flows into the mixing pipe section 12 through the necking pipe section 11 after foaming, and is output through the spiral nozzle 4 arranged on the mixing pipe section 12, asphalt generates vortex in the spiral nozzle 4, so that the asphalt and water are mixed more uniformly, and the foaming effect is improved.
During operation, can be through the pressure change condition in first manometer 6, second manometer 7, the third manometer 8 real-time supervision pitch foaming pipe 1, the change of discharge can reach actual required quantity through frequency conversion control, but atomizer 3 level left, level right or vertical spraying downwards.
The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, and the present invention is to be used for insubstantial modification of the present invention, which all infringes the protection scope of the present invention.