CN215327909U

CN215327909U - Asphalt foaming device

Info

Publication number: CN215327909U
Application number: CN202122030826.0U
Authority: CN
Inventors: 刘新超; 姜青青; 郭国川; 胡亚男
Original assignee: Langfang D&g Machinery Technology Co ltd
Current assignee: Langfang D&g Machinery Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-12-28
Anticipated expiration: 2031-08-26

Abstract

The application provides an asphalt foaming device, comprising a mixer; the mixer is respectively connected with the asphalt supply assembly and the liquid supply assembly; an atomizing nozzle is arranged between the liquid supply component and the mixer; the atomizing nozzle is also connected with the gas supply assembly and is used for improving the atomizing effect; the asphalt supply assembly comprises an asphalt pump connected with the mixer; a blowing component is arranged between the asphalt pump and the mixer; the blowing assembly is connected with the air supply assembly and used for cleaning the pipeline. According to the technical scheme that this application embodiment provided, mix pitch and water through the blender, water can get into atomizer before the pitch mixes, and cooperation air feed subassembly can atomize, improves the mixed effect of water and pitch to form foamed asphalt, this simple structure size is little, compares in prior art, and more be fit for making the bituminous mixture sample in the laboratory and test, thereby confirm warm mix bituminous mixture's production parameter.

Description

Asphalt foaming device

Technical Field

The application relates to the technical field of experimental equipment, in particular to an asphalt foaming device.

Background

In recent years, with the national policy of energy conservation and emission reduction, the highway construction industry is actively implementing new processes, and the warm mixing technology is rapidly developed.

Compared with the same type of hot-mix asphalt mixture, the warm-mix asphalt mixture (WMA) has the advantages that the mixing temperature of the asphalt mixture is reduced by more than 30-40 ℃ through technical means on the premise of basically not changing the mixing ratio and the construction process of the asphalt mixture, and the performance of the warm-mix asphalt mixture reaches the novel asphalt mixture of the hot-mix asphalt mixture. The foamed asphalt method warm mixing technology plays an important role in the foamed asphalt method warm mixing technology, and the application amount is increased year by year.

The preparation method of the foamed asphalt comprises the steps of adding water into hot asphalt, vaporizing the water in the hot asphalt into water vapor, and pressing the water vapor into a continuous phase of the asphalt under a certain pressure along with steam bubbles in an asphalt mixing expansion cavity; as the asphalt dissolved with a large amount of steam bubbles is sprayed from the nozzle, foamed asphalt is formed.

In order to achieve the best performance of warm mix asphalt, it is necessary to prepare asphalt samples in a laboratory for testing to determine the production parameters of the warm mix asphalt. The asphalt foaming device is basically installed on a large-scale stirring device, the sampling is troublesome during production, and the foamed asphalt has a half-life period, cannot be placed for a long time, and the quality of the sampling is not well controlled.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide an asphalt foaming device.

The application provides an asphalt foaming device, comprising a mixer; the mixer is respectively connected with the asphalt supply assembly and the liquid supply assembly; an atomizing spray head is arranged between the liquid supply assembly and the mixer; the atomizing nozzle is also connected with the gas supply assembly and used for improving the atomizing effect; the asphalt supply assembly includes an asphalt pump connected to the mixer; a blowing component is arranged between the asphalt pump and the mixer; the cleaning and blowing assembly is connected with the air supply assembly and used for cleaning the pipeline.

Further, the cleaning and blowing assembly comprises a cleaning and blowing electromagnetic valve and a cleaning and blowing one-way valve which are connected in series; the blowing one-way valve is connected between the asphalt pump and the mixer; the cleaning and blowing electromagnetic valve is connected with the air supply assembly.

Further, the asphalt pump is also connected with an asphalt barrel; the asphalt barrel comprises an inner barrel and an outer barrel; the inner part of the outer barrel is provided with a heat insulation layer, and a heating ring is arranged between the outer barrel and the inner barrel; the bottom of interior bucket is equipped with hot plate and bin outlet, is equipped with the backward flow mouth on the lateral wall.

Further, the discharge port is connected with an asphalt pump; the backflow port is connected between the cleaning and blowing assembly and the mixer through a pneumatic three-way valve.

Further, the liquid supply assembly includes a water tank; a water level sensor is arranged on the water tank, a liquid inlet is arranged above the water level sensor, and a liquid outlet is arranged below the water level sensor; the liquid inlet is connected with a water adding funnel; the liquid outlet is connected with the mixer.

Further, a control component is arranged between the liquid outlet and the mixer; the control assembly comprises a plunger pump, a flow sensor, a waterway foaming electromagnetic valve and a waterway one-way valve which are sequentially connected in series between the liquid outlet and the mixer; and a pressure sensor is also arranged between the plunger pump and the flow sensor.

Further, the safety valve is also included; the input end of the safety valve is connected between the pressure sensor and the flow sensor, and the output end of the safety valve is connected with the liquid outlet.

Further, the device also comprises a water return electromagnetic valve; the input end of the water return electromagnetic valve is connected between the flow sensor and the waterway foaming electromagnetic valve, and the output end of the water return electromagnetic valve is connected with the liquid outlet.

Further, the gas supply assembly comprises a gas tank; a pressure regulating valve, a gas path foaming electromagnetic valve and a gas path check valve are sequentially connected in series between the gas tank and the atomizing nozzle; a pressure gauge is also arranged between the pressure regulating valve and the gas tank; the cleaning and blowing assembly is connected between the pressure gauge and the pressure regulating valve.

Further, a spray head is also arranged on the mixer; the spray head is connected with the mixer through a static mixer; and a pipeline heating belt is installed on the static mixer.

The application has the advantages and positive effects that:

this technical scheme mixes pitch and water through the blender, and water can get into atomizer before the pitch mixes, and cooperation air feed subassembly can atomize, improves the mixed effect of water and pitch to form foam asphalt, this simple structure size is little, compares in prior art, more is fit for making the bituminous mixture sample in the laboratory and tests, thereby confirms warm mix bituminous mixture's production parameter.

Drawings

FIG. 1 is a schematic structural diagram of an asphalt foaming device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an asphalt barrel of the asphalt foaming device provided in the embodiment of the present application.

The text labels in the figures are represented as: 100-a mixer; 110-an atomizer; 120-a spray head; 130-a static mixer; 131-pipeline heating belt; 200-asphalt pump; 210-inner barrel; 211-a heating plate; 212-a discharge opening; 213-reflux port; 220-an outer tub; 221-an insulating layer; 230-a heating ring; 240-pneumatic three-way valve; 250-a temperature sensor; 300-a purge solenoid valve; 310-purge check valve; 400-a water tank; 410-a water level sensor; 420-water adding funnel; 421-a filter; 430-plunger pump; 440-a flow sensor; 450-waterway foaming electromagnetic valve; 460-a pressure sensor; 470-safety valve; 480-a water return electromagnetic valve; 490-waterway one-way valve; 500-a gas tank; 510-a pressure regulating valve; 520-gas path foaming electromagnetic valve; 530-gas path check valve; 540-pressure gauge; 550-air source; 551-air inlet one-way valve; 552-inlet solenoid valve.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1-2, the present embodiment provides an asphalt foaming device, which includes a mixer 100; the mixer 100 is connected to the asphalt supply assembly and the liquid supply assembly, respectively; the liquid supply assembly is connected with the mixer 100 through the atomizing nozzle 110, and is matched with the atomizing nozzle 110 to be connected with the gas supply assembly, so that the water entering the mixer 100 can be fully atomized, the mixing effect with the asphalt is improved, and the foamed asphalt with high quality is formed.

In a preferred embodiment, the asphalt supply assembly includes an asphalt tank; the asphalt barrel comprises an inner barrel 210 and an outer barrel 220; an insulating layer 221 is arranged inside the outer barrel 220, and a heating ring 230 is arranged between the outer barrel and the inner barrel 210; the bottom of the inner tub 210 is provided with a heating plate 211.

Preferably, the inner barrel 210 is made of steel, the heating ring 230 is attached to the side wall of the steel inner barrel 210, and the heating plate 211 is closely attached to the bottom surface of the inner barrel 210.

Preferably, the bottom of the inner barrel 210 is provided with a discharge port 212, and the side wall is provided with a return port 213; the discharge port 212 is connected to the mixer 100 through the asphalt pump 200; the return port 213 is connected between the asphalt pump 200 and the mixer 100 by a pneumatic three-way valve 240.

Preferably, the asphalt barrel is further provided with a temperature sensor 250 inserted into the inner barrel 210; the temperature sensor 250 is linked with the heating ring 230 and the heating plate 211 and is used for controlling the temperature in the asphalt barrel.

In a preferred embodiment, a purge assembly is connected between the asphalt pump 200 and the pneumatic three-way valve 240; the cleaning and blowing assembly comprises a cleaning and blowing electromagnetic valve 300 and a cleaning and blowing one-way valve 310 which are connected in series; the output end of the purge check valve 310 is connected between the asphalt pump 200 and the mixer 100; the input end of the purge solenoid valve 300 is connected to the air supply assembly, and is used for blowing the residual asphalt in the pipeline between the asphalt pump 200 and the mixer 100 back into the asphalt tank through the return port 213.

In a preferred embodiment, the gas supply assembly comprises a gas tank 500; an air inlet check valve 551, an air inlet electromagnetic valve 552 and an air source 550 are sequentially connected to an air inlet of the air tank 500, and a pressure regulating valve 510, an air path foaming electromagnetic valve 520 and an air path check valve 530 are sequentially connected between an air outlet and the atomizing nozzle 110 in series.

Preferably, a pressure gauge 540 is further installed at the air outlet to display the pressure of the supplied air.

Preferably, the input end of the purge solenoid valve 300 is connected between the pressure gauge 540 and the pressure regulating valve 510.

In a preferred embodiment, the liquid supply assembly comprises a water level sensor 410 disposed on a side wall of the water tank 400, a liquid inlet disposed above the water level sensor 410, and a liquid outlet disposed below the water level sensor 410; the liquid inlet is connected with a water adding funnel 420 through a connecting hose; the liquid outlet is connected with the atomizing nozzle 110 through a control assembly.

Preferably, the bottom of the water adding funnel 420 is further provided with a filter 421 for filtering the added water to ensure the water supply quality.

Preferably, the bottom of the water tank 400 is further provided with a liquid outlet, and the liquid outlet is provided with a drain valve 401 for draining the water in the water tank 400 under special working conditions.

In a preferred embodiment, the control assembly includes a plunger pump 430, a flow sensor 440, a waterway foaming solenoid valve 450, and a waterway check valve 490, which are connected in series in sequence between the liquid outlet and the mixer 100.

Preferably, the output end of the plunger pump 430 is further provided with a pressure sensor 460, which is matched with the flow sensor 440 to detect the fluid pressure at the outlet of the plunger pump 430 and monitor the flow rate of the plunger pump.

Preferably, the control assembly further includes a relief valve 470; the input end of the safety valve 470 is connected between the pressure sensor 460 and the flow sensor 440, and the output end is connected with the liquid outlet.

Preferably, the control assembly further comprises a water return solenoid valve 480; the input end of the water return electromagnetic valve 480 is connected between the flow sensor 440 and the waterway foaming electromagnetic valve 450, and the output end is connected with the liquid outlet.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. An asphalt foaming device, characterized by comprising a mixer (100); the mixer (100) is respectively connected with an asphalt supply assembly and a liquid supply assembly; an atomizing spray head (110) is arranged between the liquid supply assembly and the mixer (100); the atomizing nozzle (110) is also connected with the gas supply assembly and is used for improving the atomizing effect; the asphalt supply assembly comprises an asphalt pump (200) connected to the mixer (100); a blowing component is arranged between the asphalt pump (200) and the mixer (100); the cleaning and blowing assembly is connected with the air supply assembly and used for cleaning the pipeline.

2. An asphalt foaming apparatus according to claim 1, wherein the purge assembly comprises a purge solenoid valve (300) and a purge check valve (310) in series; the purge check valve (310) is connected between the asphalt pump (200) and the mixer (100); the cleaning and blowing electromagnetic valve (300) is connected with the air supply assembly.

3. An asphalt foaming apparatus according to claim 1, wherein the asphalt pump (200) is further connected to an asphalt tank; the asphalt barrel comprises an inner barrel (210) and an outer barrel (220); an insulating layer (221) is arranged inside the outer barrel (220), and a heating ring (230) is arranged between the outer barrel and the inner barrel (210); the bottom of interior bucket (210) is equipped with hot plate (211) and bin outlet (212), is equipped with return opening (213) on the lateral wall.

4. An asphalt foaming apparatus according to claim 3, wherein the discharge opening (212) is connected to an asphalt pump (200); the return port (213) is connected between the purge and blow assembly and the mixer (100) by a pneumatic three-way valve (240).

5. An asphalt foaming apparatus according to claim 1, wherein the liquid supply assembly comprises a water tank (400); a water level sensor (410) is arranged on the water tank (400), a liquid inlet is arranged above the water level sensor (410), and a liquid outlet is arranged below the water level sensor (410); the liquid inlet is connected with a water adding funnel (420); the liquid outlet is connected with a mixer (100).

6. An asphalt foaming apparatus according to claim 5, wherein a control component is further arranged between the liquid outlet and the mixer (100); the control assembly comprises a plunger pump (430), a flow sensor (440), a waterway foaming electromagnetic valve (450) and a waterway one-way valve (490) which are sequentially connected in series between the liquid outlet and the mixer (100); and a pressure sensor (460) is also arranged between the plunger pump (430) and the flow sensor (440).

7. An asphalt foaming apparatus according to claim 6, further comprising a safety valve (470); the input end of the safety valve (470) is connected between the pressure sensor (460) and the flow sensor (440), and the output end of the safety valve is connected with the liquid outlet.

8. The asphalt foaming apparatus according to claim 6, further comprising a water return solenoid valve (480); the input end of the water return electromagnetic valve (480) is connected between the flow sensor (440) and the waterway foaming electromagnetic valve (450), and the output end of the water return electromagnetic valve is connected with the liquid outlet.

9. An asphalt foaming apparatus according to claim 1, wherein the gas supply assembly comprises a gas tank (500); a pressure regulating valve (510), a gas path foaming electromagnetic valve (520) and a gas path one-way valve (530) are sequentially connected in series between the gas tank (500) and the atomizing nozzle (110); a pressure gauge (540) is also arranged between the pressure regulating valve (510) and the gas tank (500); the cleaning and blowing assembly is connected between the pressure gauge (540) and the pressure regulating valve (510).

10. An asphalt foaming apparatus according to claim 1, wherein a spray head (120) is further installed on the mixer (100); the spray head (120) is connected with the mixer (100) through a static mixer (130); and a pipeline heating belt (131) is arranged on the static mixer (130).