CN220888237U - Sand-containing fog seal device without air spraying - Google Patents
Sand-containing fog seal device without air spraying Download PDFInfo
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- CN220888237U CN220888237U CN202322297159.1U CN202322297159U CN220888237U CN 220888237 U CN220888237 U CN 220888237U CN 202322297159 U CN202322297159 U CN 202322297159U CN 220888237 U CN220888237 U CN 220888237U
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- sand
- mixing tank
- materials
- containing fog
- tank
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- 239000004576 sand Substances 0.000 title claims abstract description 40
- 238000005507 spraying Methods 0.000 title claims abstract description 33
- 238000002156 mixing Methods 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 71
- 239000010426 asphalt Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000005303 weighing Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 6
- 102100034983 E3 ubiquitin-protein ligase ZNRF4 Human genes 0.000 claims 1
- 101000802410 Homo sapiens E3 ubiquitin-protein ligase ZNRF4 Proteins 0.000 claims 1
- ARPUHYJMCVWYCZ-UHFFFAOYSA-N ciprofloxacin hydrochloride hydrate Chemical compound O.Cl.C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 ARPUHYJMCVWYCZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000000889 atomisation Methods 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 21
- 239000011230 binding agent Substances 0.000 description 19
- 239000011159 matrix material Substances 0.000 description 18
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Road Paving Machines (AREA)
Abstract
The invention relates to the field of road building and maintenance machinery, in particular to a sand-containing fog sealing device without air spraying, which comprises a storage bin and an asphalt tank, wherein materials stored in the storage bin and the asphalt tank are conveyed to a mixing tank through a pipeline, and a stirrer is arranged in the mixing tank and is used for uniformly mixing and stirring the materials; the mixing tank is connected with the mixing tank, the spray rod is connected with the mixing tank, the mixed materials are pumped to the spray rod by the plunger pump, and the mixed materials are sprayed out through a nozzle arranged on the spray rod. According to the invention, materials are mixed in the mixing tank, so that the materials can be uniformly mixed, and the working is reliable. The plunger pump can convey materials with the viscosity of 5000cPs, and the viscosity of the mixed sand-containing fog seal layer materials is generally 1400-2300cPs, so that the pumping can be smoothly carried out, and the pipeline is free from blockage risk; the material atomization effect during construction can be obviously improved, and the construction quality is further improved.
Description
Technical Field
The invention relates to the field of road construction and maintenance machinery, in particular to a sand-containing fog seal device without air spraying.
Background
The sand-containing fog sealing layer is a preventive maintenance measure for early slight cracks and diseases of asphalt pavement, and the construction process comprises the steps of firstly, mixing and stirring uniformly modified emulsified asphalt, clay and high polymer additive according to a certain proportion to obtain a matrix binder of a finished product, adding carborundum with the grain diameter of 0.2-0.4 mm into the matrix binder according to a certain proportion during site construction, mixing and stirring uniformly to obtain a sand-containing fog sealing layer material, and then spraying the sand-containing fog sealing layer material on the asphalt pavement by using special sand-containing fog sealing layer spraying equipment to form a structural layer with the thickness of 0.5-2 mm. The modified emulsified asphalt has the characteristics of good high-low temperature road performance, good waterproof performance and large binding force, and can achieve the effects of filling cracks, blocking water seepage, delaying the aging of the original road asphalt and improving the appearance of the road; the addition of the clay and the high polymer is mainly used for increasing the viscosity, so that the effect of stabilizing the suspension of the carborundum in the carborundum can be formed later, and meanwhile, the wear resistance of the material can be improved; and the addition of the carborundum can increase the friction coefficient, improve the anti-skid performance of the road surface and improve the driving safety. The sand-containing fog sealing layer has the advantages of thin structural layer, low material consumption per unit area, quick drying and solidification, and open traffic, and is an economical, practical and quick construction early-stage pavement crack maintenance means, and can be widely applied.
Chinese patent 202210024255.6 discloses a sand-containing fog seal device, the device is in order to solve the difficult miscibility of spun yarn in emulsified asphalt, the easy problem that takes place to precipitate, and the nozzle is easy to block up, store emulsified asphalt and spun yarn respectively and spray, pressurize emulsified asphalt through the hydraulic pump, spun yarn in the feed bin gets into power spray tube pressurization, the shower nozzle of emulsified asphalt and the blast nozzle setting of spun yarn are in a mixing chamber, the emulsified asphalt after atomizing soaks and wraps up the spun yarn, spray to the road surface on reach the purpose of seal. Simultaneously, set up the air pump and take out the interior air of mixing chamber, form the negative pressure, restrain emulsified asphalt's drift, through adjusting the interior negative pressure size of mixing chamber, and then control seal thickness. The device has the following problems: firstly, a sand-containing fog seal matrix binder with better road performance than single-component emulsified asphalt is developed, and the silicon carbide is not easy to precipitate after being fully mixed and stirred; secondly, the sealing device sprayed by the two pipelines is not easy to realize the accurate proportioning of the matrix binder and the sand material, and the consistency of the sealing layer is not easy to be ensured during construction; and thirdly, during pavement construction, factors such as pavement evenness, vehicle speed, external wind power and the like can possibly cause difficult quantitative influence on the construction state, and the sealing layer thickness is difficult to realize by controlling the negative pressure in the mixing cavity.
Chinese patent 202111540285.4 discloses a sand-containing fog seal maintenance equipment, and this equipment is through setting up compounding subassembly and spraying subassembly, through in compounding subassembly, realizes the primary and secondary mixing of pitch and sand, and the material after mixing is carried by a spiral axial spraying subassembly, in this process, pressurizes the screw axis through a pressurized tank that is full of air pressurized in the inside, provides the required pressure of spraying mixed material. The equipment adopts a plurality of groups of spiral blanking shafts to control the blanking speed of sand during one-time mixing, but the flow of asphalt in a mixing umbrella is not measurable, and the problem that the ratio of asphalt to sand cannot be accurately controlled also exists. The pressure of the pressurizing box is generally only 0.5-0.8MPa when the pressurizing box is used for providing spraying through compressed air, and the pressure fluctuation or too low can cause poor atomization effect because the solid content of the mixed materials generally reaches 10% -20%, so that the uniformity of the sealing layer thickness is affected.
Chinese patent 201720621906.4 discloses a small-size spraying equipment for sand-containing fog seal, it pumps the material in the blending tank into the high-pressure tank through adopting pneumatic double diaphragm pump and stabilizes the pressure, then opens spray valve and shower nozzle control valve, the material sprays out from the atomizer via hose and manual spray boom, be applicable to the construction of sand-containing fog seal of small-scale local road surface, because pneumatic diaphragm pump generally only can provide the operating pressure that does not exceed 0.7MPa, otherwise the diaphragm will take place to damage, cause the construction to stop, therefore also can't obtain the application in the occasion of large-scale construction.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the sand-containing fog seal device without air spraying, which can realize the accurate proportioning and uniform mixing of matrix binder and silicon carbide, can realize the construction of the sand-containing fog seal with high uniformity without atomizing by external force such as compressed air and the like, and has the characteristics of reasonable structure, reliable work and convenient operation.
The invention provides a sand-containing fog sealing device without air spraying, which comprises a storage bin and an asphalt tank, wherein materials stored in the storage bin and the asphalt tank are conveyed to a mixing tank through a pipeline, and a stirrer is arranged in the mixing tank and is used for uniformly mixing and stirring the materials; the mixing tank is connected with the mixing tank, the spray rod is connected with the mixing tank, the mixed materials are pumped to the spray rod by the plunger pump, and the mixed materials are sprayed out through a nozzle arranged on the spray rod. According to the invention, materials are mixed in the mixing tank, so that the materials can be uniformly mixed, and the working is reliable. The plunger pump can convey materials with the viscosity of 5000cPs, and the viscosity of the mixed sand-containing fog seal layer materials is generally 1400-2300cPs, so that the pumping can be smoothly carried out, and the pipeline is free from blockage risk; the material atomization effect during construction can be obviously improved, and the construction quality is further improved.
Preferably, the stirrer is a paddle or ribbon stirrer.
Preferably, a screw feeder delivering the material stored in the storage bin to the mixing tank and a gear pump delivering the material in the asphalt tank to the mixing tank are included.
Preferably, the diameter of the helical blade of the screw feeder is 50-120 mm, and the pitch of the helical blade is 50-80 mm; the gear pump is an internal gear pump.
Preferably, the discharge port of the plunger pump is communicated with the feed port of the pressure regulating valve, the discharge port of the pressure regulating valve is communicated with the spray rod, the pressure regulating valve is provided with a bypass pipeline, and the bypass pipeline is communicated with the mixing tank. The aim of controlling the spraying quantity can be achieved by adjusting the set value of the pressure regulating valve, so that the spraying accuracy is controllable; and the pressure regulating valve is provided with a bypass pipeline, so that materials can flow back, the materials are in a state with strong fluidity, and the possibility of blockage of the materials is avoided.
Preferably, the bottom of the mixing tank is provided with a heavy sensor. The mixing tank is integrally weighed, the weights of the matrix binder and the carborundum can be accurately measured respectively, the proportion of the matrix binder and the carborundum can be conveniently ensured, and compared with the existing mode that the matrix binder and the carborundum are sprayed respectively or mixed in a pipeline, the mixing proportion of the matrix binder and the carborundum can be more accurately ensured, and the material performance can reach the design index.
Preferably, the weighing sensors are cantilever type weighing sensors, and the number of the weighing sensors is 3.
Preferably, the power source of the screw feeder and the stirrer is a motor.
Preferably, the plunger pump is a high-pressure plunger pump of solid rake or kemline.
Preferably, the nozzle is a fan nozzle or a solid cone nozzle.
Drawings
FIG. 1 is a schematic block diagram of a sand-containing fog seal device without air spraying according to the invention.
Reference numerals illustrate:
1-a storage bin; 2-a screw feeder; 3-an asphalt tank; 4-a gear pump; 5-a mixing tank; 6, a stirrer; 7, a weighing sensor; 8-a plunger pump; 9-a pressure regulating valve; 10-a spray bar; 11-a nozzle; 91-bypass conduit; 61-motor.
Description of the embodiments
In order that the manner in which the above recited objects, features and advantages of the present invention are obtained will become more readily apparent, a more particular description of the invention briefly described above will be rendered by reference to the appended drawings and appended drawings.
Referring to fig. 1, in order to solve the above technical problems, the present invention provides a sand-containing fog seal device without air spraying, which comprises a storage bin 1, a screw feeder 2, an asphalt tank 3, a gear pump 4, a mixing tank 5, a stirrer 6, a weighing sensor 7, a plunger pump 8, a pressure regulating valve 9, a spraying rod 10 and a nozzle 11.
The storage bin 1 stores materials such as carborundum, the storage bin 1 is of a square or cylindrical structure with big top and small bottom, the screw feeder 2 is arranged at the lower part of the storage bin, and a discharge hole of the screw feeder 2 is arranged at the upper end of the mixing tank 5. The asphalt tank 3 stores materials such as adhesive, the asphalt tank 3 is of a square or cylindrical structure, the bottom of the asphalt tank is connected with a suction port of the gear pump 4 through a pipeline, and a discharge port of the gear pump 4 is arranged at the upper end of the mixing tank. The diameter of the helical blade of the screw feeder 2 is 50-120 mm, and the pitch of the helical blade is 50-80 mm; the gear pump 4 is an internal gear pump. The screw feeder 2 delivers the material stored in the storage bin 1 to the mixing tank 5, and the gear pump 4 delivers the material in the asphalt tank 3 to the mixing tank 5. Thus, the materials stored in the storage bin 1 and the asphalt tank 3 are respectively conveyed to the mixing tank 5 through the pipelines, and are fully mixed in the mixing tank 5.
The mixing tank 5 is internally provided with a stirrer 6, the stirrer 6 is a paddle type or spiral belt type stirrer, and the stirrer 6 is used for uniformly mixing and stirring materials. In the mixing of materials, the weighing sensors 7 are uniformly distributed at the bottom of the corresponding mixing tank 5. The screw feeder 2 and the gear pump 4 are controlled to feed the mixing tank 5 respectively, and the weighing sensor 7 is used for weighing the two materials to control the feeding weight of the two materials, so that the mixing proportion of the materials is accurately controlled, and the identity and stability of the mixture are facilitated. The load cell 7 is an cantilever type load cell, and the number of the load cells 7 may be set to 3 or more.
The mixing tank 5 is generally of cylindrical configuration, with a pipe provided at the bottom or bottom of the cylinder. The mixing tank 5 is communicated with a material suction port of the plunger pump 8 through a pipeline, a material discharge port of the plunger pump 8 is communicated with a material inlet of the pressure regulating valve 9 through a pipeline, a material discharge port of the pressure regulating valve 9 is communicated with a spray rod 10 through a pipeline, and a bypass material port of the pressure regulating valve 9 is connected to the top of the mixing tank 5 through a pipeline. The spray rod is made of a rectangular tube or a round tube, and a plurality of nozzles 11 are arranged on the spray rod at equal intervals. The plunger pump 8 pumps the mixed materials to the spray rod 10 and sprays the materials out through a nozzle 11 arranged on the spray rod 10. The pressure regulating valve 9 is provided with a bypass pipe 91, which bypass pipe 91 communicates with the mixing tank 5. The bypass line 91 allows for the return flow of excess material.
The power source of the screw feeder 2 and the stirrer 6 can be a motor or an engine drive. In the present embodiment, as shown in fig. 1, a motor 61 is provided on the stirrer 6. The plunger pump 9 is a high-pressure plunger pump of solid rake or gram. The nozzle 11 is a fan nozzle or a solid cone nozzle.
The invention can be installed on a truck or a special engineering truck, and the spray bar 10 is placed at the tail of the truck. During operation, in a parking state, carborundum is added into the storage bin 1, a finished substrate binder is added into the asphalt tank 3, and then the following steps are carried out.
The first step, start gear pump 4, pump matrix binder into mixing tank 5, weighing sensor 7 that mixing tank 5 bottom set up can real-time supervision jar material weight. When the weight of matrix binder required for one production lot is reached, the gear pump 4 is turned off and pumping is stopped.
And secondly, starting the screw feeder 2, conveying the carborundum into the mixing tank 5, and when the weighing sensor 7 detects that the carborundum addition amount reaches the weight value required by the blending proportion, closing the screw feeder 2, and stopping conveying.
Thirdly, after the matrix binder and the silicon carbide are added into the mixing tank according to the required mixing proportion, the stirrer 6 is started to stir the materials in the mixing tank 5, and after the materials are stirred for a specified time, the matrix binder and the silicon carbide are uniformly mixed, so that the spraying operation can be started.
Fourthly, after the truck starts in situ, the truck keeps the speed of the truck to be in 3-5 km/h and runs at a constant speed, the plunger pump 8 is started, the plunger pump 8 pumps the sand-containing fog seal material out of the mixing tank and pumps the sand-containing fog seal material into the spraying rod 10, and the sand-containing fog seal material is uniformly sprayed on the ground from the nozzle 11 on the spraying rod 10.
By adjusting the set value of the pressure regulating valve 9, the discharge flow of the plunger pump 8 to the spray rod 10 can be controlled, and the redundant flow material pumped by the plunger pump 8 returns into the mixing tank 5 through the bypass pipeline of the pressure regulating valve, so that the spraying amount of the sand-containing fog sealing layer material per square meter can be controlled. After the materials in the mixing tank are completely sprayed, the next batch of matrix binder and silicon carbide can be mixed and sprayed, and the construction operation is continued according to the above working procedures.
The invention adopts the mode of weighing the whole mixing tank, can accurately measure the weight of the matrix binder and the carborundum respectively, can conveniently ensure the proportion of the matrix binder and the carborundum, and can more accurately ensure the mixing proportion of the matrix binder and the carborundum and ensure the material performance to reach the design index compared with the mode of respectively spraying or mixing the matrix binder and the carborundum in a pipeline at present. The plunger pump can convey materials with the viscosity of 5000cPs, and the viscosity of the mixed sand-containing fog seal layer materials is generally 1400-2300cPs, so that the pumping can be smoothly carried out, and the pipeline is free from blockage risk; when the plunger pump works, the pressure of the plunger pump can reach 2.8MPa, and compared with the pressure of compressed air or a pneumatic diaphragm pump which can only reach 0.5-0.8MPa, the material atomization effect is obviously improved during actual construction, and the construction quality is further improved; the purpose of controlling the spraying quantity can be achieved by adjusting the set value of the pressure regulating valve, so that the spraying accuracy is controllable.
The invention and its embodiments have been described above schematically, without limitation, and the actual construction is not limited to this, as it is shown in the drawings, which are only one of the embodiments of the invention. Therefore, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical scheme are not creatively devised without departing from the gist of the present invention, and all the structural manners and the embodiments belong to the protection scope of the present invention.
Claims (10)
1. The sand-containing fog seal device comprises a storage bin (1) and an asphalt tank (3), and is characterized in that materials stored in the storage bin (1) and the asphalt tank (3) are conveyed to a mixing tank (5) through a pipeline, a stirrer (6) is arranged in the mixing tank (5), and the stirrer (6) is used for uniformly mixing and stirring the materials; the novel mixing device is characterized by further comprising a plunger pump (8) and a spraying rod (10), wherein the plunger pump (8) is connected with the mixing tank (5) and the spraying rod (10), and the plunger pump (8) pumps mixed materials to the spraying rod (10) and sprays the mixed materials out through a nozzle (11) arranged on the spraying rod (10).
2. A sand-containing fog seal apparatus as claimed in claim 1 wherein said agitator (6) is a paddle or ribbon type agitator.
3. A sand-containing fog seal apparatus without gas spraying according to claim 2, characterized by comprising a screw feeder (2) and a gear pump (4), wherein the screw feeder (2) conveys the material stored in the storage bin (1) to the mixing tank (5), and the gear pump (4) conveys the material in the asphalt tank (3) to the mixing tank (5).
4. A airless spray sand-containing fog seal apparatus according to claim 3 wherein said screw feeder has screw blade diameter of 50-120 mm and screw pitch of 50-80 mm; the gear pump is an internal gear pump.
5. The airless spraying sand-containing fog sealing device according to claim 1, wherein the discharge port of the plunger pump (8) is communicated with the feed port of the pressure regulating valve (9), the discharge port of the pressure regulating valve (9) is communicated with the spraying rod, the pressure regulating valve (9) is provided with a bypass pipeline (91), and the bypass pipeline (91) is communicated with the mixing tank (5).
6. A sand-containing fog sealing device without air spraying according to any of claims 1-5, characterized in that the bottom of the mixing tank (5) is provided with a load cell (7).
7. The airless spray sand-containing fog sealing device according to claim 6, wherein the weighing sensors (7) are cantilever type weighing sensors, and the number of the weighing sensors (7) is 3.
8. A airless spray sand mist seal assembly according to claim 3, characterized in that the power source of said screw feeder and stirrer is an electric motor.
9. A sand-containing fog seal apparatus as claimed in claim 1 wherein the plunger pump (8) is a high pressure plunger pump of nixin or kemline.
10. A sand-containing fog seal apparatus as claimed in claim 1 wherein said nozzle (11) is a fan nozzle or a solid cone nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297159.1U CN220888237U (en) | 2023-08-25 | 2023-08-25 | Sand-containing fog seal device without air spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297159.1U CN220888237U (en) | 2023-08-25 | 2023-08-25 | Sand-containing fog seal device without air spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220888237U true CN220888237U (en) | 2024-05-03 |
Family
ID=90873691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322297159.1U Active CN220888237U (en) | 2023-08-25 | 2023-08-25 | Sand-containing fog seal device without air spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220888237U (en) |
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2023
- 2023-08-25 CN CN202322297159.1U patent/CN220888237U/en active Active
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