CN113063932B - Self-cleaning anti-blocking asphalt foaming experimental device - Google Patents
Self-cleaning anti-blocking asphalt foaming experimental device Download PDFInfo
- Publication number
- CN113063932B CN113063932B CN202110283585.2A CN202110283585A CN113063932B CN 113063932 B CN113063932 B CN 113063932B CN 202110283585 A CN202110283585 A CN 202110283585A CN 113063932 B CN113063932 B CN 113063932B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- cleaning
- foaming
- nozzle
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 175
- 238000005187 foaming Methods 0.000 title claims abstract description 170
- 238000004140 cleaning Methods 0.000 title claims abstract description 132
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000002474 experimental method Methods 0.000 claims abstract description 5
- 239000003570 air Substances 0.000 claims description 77
- 239000012459 cleaning agent Substances 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 13
- 238000005452 bending Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nozzles (AREA)
Abstract
The invention belongs to the technical field of asphalt foaming equipment, and particularly relates to a self-cleaning anti-blocking asphalt foaming experimental device which comprises a foaming cavity mechanism and a self-cleaning mechanism, wherein the foaming cavity mechanism is connected with the self-cleaning mechanism, when an asphalt nozzle is opened, a water nozzle opening and closing valve, an air nozzle opening and closing valve and an asphalt supply pipeline opening and closing valve are closed, a foaming cavity, a water nozzle, an air nozzle, an asphalt nozzle and an asphalt supply circulating pipeline connected with the asphalt nozzle form a closed space, the foaming mechanism is connected with the self-cleaning mechanism through a water nozzle cleaning valve and an air nozzle cleaning valve, and the self-cleaning and anti-blocking of the foaming cavity, the asphalt nozzle, the water nozzle and the air nozzle are realized under the condition of not changing the internal structure of the foaming cavity, so that the asphalt foaming effect is not influenced due to the blocking problem when experiments are carried out for many times, and the defect of cleaning anti-blocking of the foaming device in the prior art is overcome; the experimental device is simple in structure, convenient to manufacture and capable of guaranteeing experimental stability.
Description
Technical field:
the invention belongs to the technical field of asphalt foaming equipment, and particularly relates to a self-cleaning anti-blocking asphalt foaming experimental device which can ensure experimental stability and reduce experimental result deviation caused by residual asphalt blocking.
The background technology is as follows:
the foamed asphalt cold regeneration technology is that foamed asphalt, new aggregate, waste asphalt road surface planing and milling material, etc. are re-mixed in certain proportion and used in road repairing technology for new road surface pavement. The technology reduces the asphalt consumption while realizing the recycling of waste pavement materials, has the characteristics of high efficiency and low cost, and becomes one of the main methods for international pavement maintenance and reconstruction.
The foamed asphalt is produced by an asphalt foaming device, the core component of the asphalt foaming device is a foaming cavity, asphalt, water and compressed air with certain temperature are injected into the foaming cavity from different nozzles to be mixed in the foaming process, low-temperature water is in heat transfer phase change when contacting with high-temperature asphalt, so that the pressure in the foaming cavity is increased, the volume of the asphalt is expanded, and the asphalt is sprayed out from an outlet, and finally the foamed asphalt is formed. The diameter of each nozzle opening in the foaming device is small and is directly connected with the foaming cavity. After the asphalt foaming is finished, residual asphalt in the foaming device is cooled and hardened and accumulated in the foaming cavity, so that blockage is easily caused at each nozzle of the foaming device, and the production of the next foamed asphalt is influenced.
Currently, there are solutions to the problem of clogging of asphalt foaming plants, such as: the utility model discloses a foam asphalt foaming device of chinese patent 201210448764.8, including pitch pipeline, pitch spray control switch, foaming chamber and nozzle, the nozzle cooperatees with the needle structure in order to control the switch of nozzle, still include water atomizing nozzle and compressed air nozzle, the central line of both is different or be in same horizontal plane, its contained angle is the acute angle, the pitch of foaming chamber sprays the access & exit and each nozzle and is removable structure, the foaming condition of foam asphalt can be changed to the corresponding part of replacement foaming chamber, the bottom pitch export of foaming chamber is porous structure, the porous eccentric hole that is, pitch spray control switch uses the cylinder to drive, the cylinder piston rod lower extreme is needle structure, the pitch pipeline has fixedly connected with a connecting piece of opening has back taper chute opening, the connecting piece is connected with the foaming chamber through the screw thread mode, the needle part of piston rod inserts or pulls out the orifice plate through back taper chute opening to realize pitch spray's break-make, the pitch orifice plate center of foaming chamber upper end opens has pitch to spray the entry, is arranged on the foaming chamber apron, for removable structure, the bearing plate center of foaming chamber lower extreme opens has pitch export, the foaming chamber bottom the porous structure is connected through the screw thread mode, the porous structure is thinned and has the porous structure. The method belongs to a mechanical anti-blocking method, only considers the blocking problem of asphalt nozzles, and does not consider the blocking problem of water and air nozzles. A device for producing foamed bitumen for road construction machines is known from chinese patent 201180023925.2, having at least one mixing device with a reaction chamber, in which the hot bitumen and at least one reaction fluid can be joined by an inlet device and can be discharged from the mixing device by a discharge device, at least one compressed air device being provided, by means of which the inlet device can be supplied with compressed air independently of the supply of compressed air for bitumen foaming to the reaction chamber for inspection purposes and/or cleaning purposes, the air pressure for bitumen foaming being lower than the air pressure for inspection and/or cleaning purposes. In the practical use process, the problem that the volume of the foaming cavity is changed due to asphalt accumulation in the foaming cavity, and the production quality of the next foamed asphalt is affected still exists. Chinese patent 201920246481.2 discloses a foamed asphalt foaming apparatus comprising: the device comprises a bracket, a cylinder cover and a cylinder body; the cylinder body is supported and fixed on the bracket, a plurality of fixing holes are uniformly formed in the cylinder cover along the circumferential direction, the upper end of the bracket is a threaded end, and the threaded end penetrates through the fixing holes and is fixed through nuts; the middle of the cylinder cover is longitudinally penetrated and provided with a water inlet pipe, two sides of the water inlet pipe are provided with bending side pipes in a front-back symmetrical mode, a ball valve is arranged above the bending side pipes on the water inlet pipe, and the bottom end of the water inlet pipe extends into the bottom of the cylinder; the ball valves are arranged on the bending side pipes at each side, the bottom ends of the bending side pipes close to the bottom of the cylinder cover are communicated with annular water spray pipes, and a plurality of water spray holes are formed in the annular water spray pipes; the electric heating pipe is symmetrically arranged on the cylinder cover in a penetrating way relative to the water inlet pipe in a left-right symmetry way, the bottom end of the electric heating pipe stretches into the bottom of the cylinder body, and a pipe sleeve is sleeved and fixed on the electric heating pipe; the water inlet pipe and the electric heating pipe are positioned in the ring of the ring-shaped water spraying pipe; the cylinder cover is provided with an asphalt feed port, and the asphalt feed port is positioned outside the ring shape of the ring-shaped water spray pipe; the foaming cavity has the problems of complex structure and very limited cleaning effect on the water nozzle and the air nozzle. The asphalt foaming apparatuses of the above-mentioned patents and prior art still have many problems in terms of self-cleaning and anti-clogging. Therefore, the self-cleaning anti-blocking asphalt foaming experimental device is developed and designed, so that the asphalt foaming effect cannot be influenced due to the blocking problem when the experimental device performs multiple experiments, and the self-cleaning anti-blocking asphalt foaming experimental device has a good application prospect.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art, and seeks to design a self-cleaning anti-blocking asphalt foaming experimental device, and a self-cleaning mechanism is added to realize self-cleaning and anti-blocking of a foaming cavity and each spray head under the condition of not changing the internal structure of the foaming cavity.
In order to achieve the aim, the self-cleaning anti-blocking asphalt foaming experimental device provided by the invention consists of a foaming cavity mechanism and a self-cleaning mechanism, wherein the foaming cavity mechanism is connected with the self-cleaning mechanism, and the self-cleaning mechanism can clean the foaming mechanism.
The main structure of the foaming cavity mechanism comprises a foaming cavity, a water nozzle, an air nozzle, a water supply pipeline, an air supply pipeline, a foaming cavity outlet, a foaming cavity end cover, an asphalt nozzle, an asphalt supply circulating pipeline, an air cylinder and an asphalt nozzle stop piece; the both sides of foaming chamber are provided with water spout and air spout, and water spout is connected with water supply pipeline, and air spout is connected with air supply pipeline, and the bottom of foaming chamber is provided with the foaming chamber export, and the below of foaming chamber export is provided with the foaming chamber end cover, and the top of foaming chamber is provided with the pitch spout, is provided with pitch supply circulation pipeline in the pitch spout, and the top of foaming chamber is connected with the cylinder, and the cylinder is connected with pitch spout cut-off member.
The main structure of the self-cleaning mechanism comprises an asphalt cleaning agent water tank, a cleaning pump and a self-cleaning pipeline; the asphalt cleaning agent water tank is connected with a cleaning pump, the cleaning pump is connected with a self-cleaning pipeline, and the top end of the self-cleaning pipeline is divided into two branches and then is connected with a water supply pipeline and an air supply pipeline respectively.
The water supply pipeline is provided with a water nozzle switch valve; an air nozzle switch valve is arranged on the air supply pipeline; the foaming cavity is connected with an end cover of the foaming cavity through threads or bolts; the asphalt nozzle is vertically connected with the asphalt supply circulation pipeline; asphalt supply pipeline switch valves are arranged on two sides of an asphalt nozzle on the asphalt supply circulating pipeline; the contact sealing position of the foaming cavity outlet and the foaming cavity end cover is provided with a sealing ring with an annular structure.
A filter is arranged between an asphalt cleaning agent water tank and a cleaning pump, a pressure sensor is arranged at one end, close to the cleaning pump, of a self-cleaning pipeline, a water nozzle cleaning valve is arranged on a branch connected with a water supply pipeline, and an air nozzle cleaning valve is arranged on a branch connected with an air supply pipeline.
When the water nozzle switch valve, the air nozzle switch valve and the asphalt supply pipeline switch valve are closed, the foaming cavity, the water nozzle, the air nozzle, the asphalt nozzle and the asphalt supply circulating pipeline connected with the asphalt nozzle form a closed space, and the foaming mechanism is connected with the self-cleaning mechanism through the water nozzle cleaning valve and the air nozzle cleaning valve.
Compared with the prior art, the self-cleaning mechanism is added for the foaming mechanism, and the self-cleaning and anti-blocking of the foaming cavity, the asphalt spray nozzle, the water spray nozzle and the air spray nozzle are realized under the condition that the internal structure of the foaming cavity is not changed, so that the asphalt foaming effect is not influenced due to the blocking problem when multiple experiments are carried out, and the defect of the foaming device in the aspect of cleaning and anti-blocking in the prior art is overcome; the device has the advantages of simple structure and convenient manufacture, can ensure experimental stability, and reduces experimental result deviation caused by residual asphalt blockage.
Description of the drawings:
fig. 1 is a schematic structural diagram of a foaming mechanism according to the present invention.
Fig. 2 is a schematic diagram of the structure principle of the self-cleaning mechanism according to the present invention.
The specific embodiment is as follows:
the invention is further described below by way of example with reference to the accompanying drawings.
Example 1:
the self-cleaning anti-blocking asphalt foaming experimental device related to the embodiment consists of a foaming cavity mechanism and a self-cleaning mechanism, wherein the foaming cavity mechanism is connected with the self-cleaning mechanism; the main structure of the foaming cavity mechanism comprises a foaming cavity 1, a water nozzle 2, an air nozzle 3, a water supply pipeline 4, a water nozzle switching valve 5, an air supply pipeline 6, an air nozzle switching valve 7, a foaming cavity outlet 8, a foaming cavity end cover 9, an asphalt nozzle 10, an asphalt supply circulation pipeline 11, an asphalt supply pipeline switching valve 12, a cylinder 13 and an asphalt nozzle stop piece 14; the two opposite positions of the foaming cavity 1 are provided with a water jet 2 and an air jet 3, the water jet 2 is connected with a water supply pipeline 4, the water supply pipeline 4 is provided with a water jet switch valve 5, the air jet 3 is connected with an air supply pipeline 6, the air supply pipeline 6 is provided with an air jet switch valve 7, the bottom center position of the foaming cavity 1 is provided with a foaming cavity outlet 8, the lower part of the foaming cavity outlet 8 is provided with a foaming cavity end cover 9, the foaming cavity 1 is in threaded connection with the foaming cavity end cover 9, the top center position of the foaming cavity 1 is provided with an asphalt jet 10, the middle part of the asphalt jet 10 is provided with an asphalt supply circulation pipeline 11, the asphalt jet 10 is vertically connected with the asphalt supply circulation pipeline 11, two sides of the asphalt jet 10 on the asphalt supply circulation pipeline 11 are respectively provided with an asphalt supply pipeline switch valve 12, the top of the foaming cavity 1 is connected with an air cylinder 13 through bolts, and the air cylinder 13 is connected with an asphalt jet stop piece 14, and one end of the air cylinder 13 extends into the asphalt jet 10; the main structure of the self-cleaning mechanism comprises an asphalt cleaning agent water tank 15, a cleaning pump 16, a filter 17, a self-cleaning pipeline 18, a pressure sensor 19, a water nozzle cleaning valve 20 and an air nozzle cleaning valve 21; the asphalt cleaning agent water tank 15 is connected with the cleaning pump 16, a filter 17 is arranged between the asphalt cleaning agent water tank 15 and the cleaning pump 16, the cleaning pump 16 is connected with the self-cleaning pipeline 18, a pressure sensor 19 is arranged at one end, close to the cleaning pump 16, of the self-cleaning pipeline 18, the top end of the self-cleaning pipeline 18 is divided into two branches and then is respectively connected with the water supply pipeline 4 and the air supply pipeline 6, a water nozzle cleaning valve 20 is arranged on the branch connected with the water supply pipeline 4, and an air nozzle cleaning valve 21 is arranged on the branch connected with the air supply pipeline 6.
The water nozzle switch valve 5 and the air nozzle switch valve 7 related to the embodiment are electromagnetic valves, and the opening and the blocking of the water supply pipeline 4 and the air supply pipeline 6 are respectively controlled according to the change of the electric signals; a sealing ring 22 with an annular structure is arranged at the contact sealing position of the foaming cavity outlet 8 and the foaming cavity end cover 9 so as to ensure the tightness when the foaming cavity 1 is connected with the foaming cavity end cover 9; the foaming cavity end cover 9 is connected with or disconnected from the foaming cavity 1 in a bolt or thread connection mode, so that the foaming cavity outlet 8 is closed and opened; the asphalt nozzle 10 is a conical through hole; the asphalt supply pipeline switch valve 12 is an electromagnetic switch and controls the on-off of the asphalt supply circulating pipeline 11; when the cylinder 13 operates, the asphalt nozzle stop piece 14 is driven to move up and down, so that the asphalt nozzle 10 is opened and closed; the end of the asphalt nozzle cut-off piece 14 is of a conical structure and is matched with the asphalt nozzle 10; the cleaning pump 16 is a pressure limiting variable vane pump; the pressure sensor 19 is used to detect the pressure of the self-cleaning mechanism.
The self-cleaning anti-blocking asphalt foaming experimental device that this embodiment relates to uses:
taking down the end cover 9 of the foaming cavity, opening the asphalt supply pipeline switch valve 12, closing the water nozzle switch valve 5, the air nozzle switch valve 7, the water nozzle cleaning valve 20 and the air nozzle cleaning valve 21, preheating experimental asphalt, and circulating the experimental asphalt in the asphalt supply circulating pipeline 11;
when the temperature reaches the experimental condition, performing an asphalt foaming experiment, opening a cylinder 13 to drive an asphalt nozzle stop member 14 to move upwards to open an asphalt nozzle 10, closing a left asphalt supply pipeline switch valve 12, opening a water nozzle switch valve 5 and an air nozzle switch valve 7 to mix asphalt, water and air in a foaming cavity 1, spraying generated foam asphalt from an outlet 8 of the foaming cavity, receiving the foam asphalt, and monitoring the expansion rate and half-life of the foam asphalt to study the asphalt foaming effect;
after all foam asphalt is discharged, the foam asphalt enters a self-cleaning link, a water nozzle switch valve 5 and an air nozzle switch valve 7 are closed, a foaming cavity end cover 9 is connected with a foaming cavity 1 to seal a foaming cavity outlet 8, a cleaning pump 16 is started, a water nozzle cleaning valve 20 and an air nozzle cleaning valve 21 are opened, after an asphalt cleaning liquid in an asphalt cleaning agent water tank 15 is pumped into a foaming mechanism and fills the foaming mechanism, a left asphalt supply pipeline switch valve 12 is closed, so that the foaming mechanism forms a sealed space, the outlet pressure of the cleaning pump 16 rises along with the rising of the outlet pressure, when a set value is reached, the pumping of the asphalt cleaning liquid is stopped, after 5 minutes, residual asphalt in the foaming mechanism is fully dissolved in the asphalt cleaning liquid, the cleaning pump 16 is closed, the foaming cavity end cover 9 is opened, and the outflow of the asphalt dissolved in the cleaning liquid is completed by the foaming mechanism;
in this process, to determine whether the water jet 2 or the air jet 3 is unobstructed, the water jet cleaning valve 20 or the air jet cleaning valve 21 is opened independently, the outlet pressure of the cleaning pump 16 is observed, when the outlet pressure is lower than the set value, the blocking is not indicated, otherwise, the blocking is indicated, the outlet pressure set value of the cleaning pump 16 is increased, and the blocked water jet 2 or the air jet 3 is continuously flushed and cleaned.
Claims (5)
1. The self-cleaning anti-blocking asphalt foaming experimental device is characterized by comprising a foaming cavity mechanism and a self-cleaning mechanism, wherein the foaming cavity mechanism is connected with the self-cleaning mechanism, and the self-cleaning mechanism can clean the foaming mechanism;
the main structure of the foaming cavity mechanism comprises a foaming cavity, a water nozzle, an air nozzle, a water supply pipeline, an air supply pipeline, a foaming cavity outlet, a foaming cavity end cover, an asphalt nozzle, an asphalt supply circulating pipeline, an air cylinder and an asphalt nozzle stop piece; the two sides of the foaming cavity are provided with a water nozzle and an air nozzle, the water nozzle is connected with a water supply pipeline, the air nozzle is connected with the air supply pipeline, and the water supply pipeline is provided with a water nozzle switch valve; an air nozzle switch valve is arranged on the air supply pipeline; the bottom of the foaming cavity is provided with a foaming cavity outlet, a foaming cavity end cover is arranged below the foaming cavity outlet, the top of the foaming cavity is provided with an asphalt nozzle, and an asphalt supply circulating pipeline is arranged in the asphalt nozzle; the asphalt nozzle is vertically connected with the asphalt supply circulation pipeline; asphalt supply pipeline switch valves are arranged on two sides of an asphalt nozzle on the asphalt supply circulating pipeline;
the main structure of the self-cleaning mechanism comprises an asphalt cleaning agent water tank, a cleaning pump and a self-cleaning pipeline; the asphalt cleaning agent water tank is connected with a cleaning pump, the cleaning pump is connected with a self-cleaning pipeline, and the top end of the self-cleaning pipeline is divided into two branches and then is respectively connected with a water supply pipeline and an air supply pipeline;
when the asphalt nozzle is opened, the water nozzle switch valve, the air nozzle switch valve and the asphalt supply pipeline switch valve are closed, the foaming cavity, the water nozzle, the air nozzle, the asphalt nozzle and the asphalt supply circulating pipeline connected with the asphalt nozzle form a closed space, and the foaming mechanism is connected with the self-cleaning mechanism through the water nozzle cleaning valve and the air nozzle cleaning valve;
when the self-cleaning is performed, the water nozzle switch valve and the air nozzle switch valve are closed, the foaming cavity end cover is connected with the foaming cavity to close the outlet of the foaming cavity, the cleaning pump is opened, the water nozzle cleaning valve and the air nozzle cleaning valve are opened, after the asphalt cleaning fluid in the asphalt cleaning agent water tank is pumped into the foaming mechanism and fills the foaming mechanism, the left asphalt supply pipeline switch valve is closed, the foaming mechanism forms a sealed space, the outlet pressure of the cleaning pump rises along with the rising, when the outlet pressure reaches a set value, the asphalt cleaning fluid stops pumping, residual asphalt in the foaming mechanism is fully dissolved in the asphalt cleaning fluid after 5 minutes, the cleaning pump is closed, the foaming cavity end cover is opened, the cleaning fluid dissolved with the asphalt flows out, and the foaming mechanism completes self-cleaning;
a filter is arranged between the asphalt cleaning agent water tank and the cleaning pump, a pressure sensor is arranged at one end, close to the cleaning pump, of the self-cleaning pipeline, a water nozzle cleaning valve is arranged on a branch connected with the water supply pipeline, and an air nozzle cleaning valve is arranged on a branch connected with the air supply pipeline; the pressure sensor is used for detecting the pressure of the self-cleaning mechanism.
2. The self-cleaning anti-clogging asphalt foaming experimental device according to claim 1, wherein the top of the foaming chamber is connected with a cylinder, and the cylinder is connected with an asphalt nozzle stop member.
3. The self-cleaning anti-clogging asphalt foaming experimental apparatus according to claim 2, wherein the foaming chamber is connected with an end cap of the foaming chamber by screw threads or bolts; the contact sealing position of the foaming cavity outlet and the foaming cavity end cover is provided with a sealing ring with an annular structure.
4. The self-cleaning anti-clogging asphalt foaming experimental device according to claim 3, wherein the water nozzle opening and closing valve and the air nozzle opening and closing valve are electromagnetic valves, and the opening and the blocking of the water supply pipeline and the air supply pipeline are controlled respectively according to the change of an electric signal; a sealing ring with an annular structure is arranged at the contact sealing position of the foaming cavity outlet and the foaming cavity end cover; the end cover of the foaming cavity is connected with or disconnected from the foaming cavity in a bolt or thread connection mode, so that the outlet of the foaming cavity is closed and opened; the asphalt nozzle is a conical through hole; the asphalt supply pipeline switch valve is an electromagnetic switch and is used for controlling the on-off of an asphalt supply circulating pipeline; when the cylinder operates, the asphalt nozzle stopping piece is driven to move up and down, so that the asphalt nozzle is opened and closed; the end part of the asphalt nozzle stop piece is of a conical structure and is matched with the asphalt nozzle; the cleaning pump is a pressure limiting variable vane pump.
5. The self-cleaning anti-clogging asphalt foaming experimental apparatus according to claim 4, wherein, in use:
taking down the end cover of the foaming cavity, opening an asphalt supply pipeline switch valve, closing a water nozzle switch valve, an air nozzle switch valve, a water nozzle cleaning valve and an air nozzle cleaning valve, preheating experimental asphalt, and circulating the experimental asphalt in an asphalt supply circulating pipeline;
when the temperature reaches the experimental condition, performing an asphalt foaming experiment, starting an air cylinder to drive an asphalt nozzle stop piece to move upwards to open an asphalt nozzle, closing a left asphalt supply pipeline switch valve, and starting a water nozzle switch valve and an air nozzle switch valve to mix asphalt, water and air in a foaming cavity, wherein generated foam asphalt is sprayed out from an outlet of the foaming cavity, the foam asphalt is received, and the expansion rate and half life of the foam asphalt are monitored to study the asphalt foaming effect;
after all foam asphalt is discharged, the foam asphalt enters a self-cleaning link, a water nozzle switch valve and an air nozzle switch valve are closed, a foaming cavity end cover is connected with a foaming cavity to seal an outlet of the foaming cavity, a cleaning pump is started, the water nozzle cleaning valve and the air nozzle cleaning valve are opened, asphalt cleaning liquid in an asphalt cleaning agent water tank is pumped into a foaming mechanism and fills the foaming mechanism, after the foaming mechanism is fully filled with the foaming agent, the left asphalt supply pipeline switch valve is closed, so that a sealed space is formed by the foaming mechanism, when the outlet pressure of the cleaning pump rises along with the rising of the outlet pressure, the pumping of the asphalt cleaning liquid is stopped, after 5 minutes, residual asphalt in the foaming mechanism is fully dissolved in the asphalt cleaning liquid, the cleaning pump is closed, the foaming cavity end cover is opened, the cleaning liquid with the asphalt dissolved flows out, and the foaming mechanism is self-cleaned;
in the process, the water jet cleaning valve or the air jet cleaning valve is independently opened, the outlet pressure of the cleaning pump is observed, when the outlet pressure is lower than a set value, the cleaning pump is not blocked, otherwise, the blocking is indicated, the outlet pressure set value of the cleaning pump is increased, and the blocked water jet or air jet is continuously flushed and cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110283585.2A CN113063932B (en) | 2021-03-17 | 2021-03-17 | Self-cleaning anti-blocking asphalt foaming experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110283585.2A CN113063932B (en) | 2021-03-17 | 2021-03-17 | Self-cleaning anti-blocking asphalt foaming experimental device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113063932A CN113063932A (en) | 2021-07-02 |
| CN113063932B true CN113063932B (en) | 2023-12-26 |
Family
ID=76560753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110283585.2A Active CN113063932B (en) | 2021-03-17 | 2021-03-17 | Self-cleaning anti-blocking asphalt foaming experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113063932B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10113580A (en) * | 1996-10-02 | 1998-05-06 | Constr Sotaa Inc | Nozzle device of manufacturing device for foamed asphalt |
| JP2006007136A (en) * | 2004-06-28 | 2006-01-12 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Device for removing clogging of asphalt emulsion spray nozzle |
| CN102587257A (en) * | 2012-03-11 | 2012-07-18 | 彭淑琴 | Foamed asphalt preparer and full automatic foamed asphalt preparation device |
| CN102892955A (en) * | 2010-04-06 | 2013-01-23 | 宝马格有限公司 | Apparatus for producing foamed bitumen and process for servicing said apparatus |
| CN103450918A (en) * | 2013-09-10 | 2013-12-18 | 徐工集团工程机械股份有限公司道路机械分公司 | High-uniformity foam asphalt generating device |
| CN103806363A (en) * | 2012-11-09 | 2014-05-21 | 同济大学 | Efficient foamed asphalt foaming device |
| CN209276450U (en) * | 2018-10-31 | 2019-08-20 | 南充海丽科技有限公司 | A kind of self-cleaning normal temperature modified pitch development tank |
| CN111622048A (en) * | 2020-05-28 | 2020-09-04 | 中交路桥建设有限公司 | Asphalt foaming device and asphalt foaming method |
-
2021
- 2021-03-17 CN CN202110283585.2A patent/CN113063932B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10113580A (en) * | 1996-10-02 | 1998-05-06 | Constr Sotaa Inc | Nozzle device of manufacturing device for foamed asphalt |
| JP2006007136A (en) * | 2004-06-28 | 2006-01-12 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Device for removing clogging of asphalt emulsion spray nozzle |
| CN102892955A (en) * | 2010-04-06 | 2013-01-23 | 宝马格有限公司 | Apparatus for producing foamed bitumen and process for servicing said apparatus |
| CN102587257A (en) * | 2012-03-11 | 2012-07-18 | 彭淑琴 | Foamed asphalt preparer and full automatic foamed asphalt preparation device |
| CN103806363A (en) * | 2012-11-09 | 2014-05-21 | 同济大学 | Efficient foamed asphalt foaming device |
| CN103450918A (en) * | 2013-09-10 | 2013-12-18 | 徐工集团工程机械股份有限公司道路机械分公司 | High-uniformity foam asphalt generating device |
| CN209276450U (en) * | 2018-10-31 | 2019-08-20 | 南充海丽科技有限公司 | A kind of self-cleaning normal temperature modified pitch development tank |
| CN111622048A (en) * | 2020-05-28 | 2020-09-04 | 中交路桥建设有限公司 | Asphalt foaming device and asphalt foaming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113063932A (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103450918B (en) | High-uniformity foam asphalt generating device | |
| CN103521470A (en) | Bearing integrated maintaining device and method | |
| CN206635614U (en) | A kind of foam asphalt generation apparatus | |
| CN201082887Y (en) | Inner-grinder spraying cooling system | |
| CN101224491B (en) | Spray cooling system capable of automatic cleaning on line without stop | |
| CN203546561U (en) | High-uniformity foam asphalt generating device | |
| CN113063932B (en) | Self-cleaning anti-blocking asphalt foaming experimental device | |
| CN101509224B (en) | Spray cavity type generating apparatus for foam asphalt | |
| CN103806363A (en) | Efficient foamed asphalt foaming device | |
| CN113123193B (en) | Asphalt multi-pipe foaming system and process | |
| CN105521650A (en) | Quantitative gas-liquid mixing device and method | |
| CN203075750U (en) | Coarse-fine integrated filter unit | |
| CN204551190U (en) | Use the cold renewal equipment of foamed asphalt | |
| CN109631616B (en) | Low-temperature liquid steam heater and heating method | |
| CN209475604U (en) | Convenient for the water-reducing agent drying tower of cleaning | |
| CN210817285U (en) | Intelligent proportioning sand mixing device | |
| CN209333422U (en) | A kind of multipurpose water tank that can promptly replace water pump | |
| CN207567612U (en) | Pavement cold recycling machine sprays beam with variable cross-section separate unit water | |
| CN215430687U (en) | Device for preventing inner wall of hydrolysis tank from scaling | |
| CN216392914U (en) | Disc type frozen drink production line | |
| CN117482777A (en) | Warm mix foam asphalt foaming equipment and application method thereof | |
| CN216760406U (en) | Automatic water inlet device of diamond wire cutting hydraulic cylinder | |
| CN218309666U (en) | Defroster for hydraulic equipment | |
| CN204551191U (en) | Foamed asphalt generation sprinkling system | |
| CN112427137B (en) | Water-saving wheel type sand washing equipment and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |