Device for spraying prime coat oil between base layer and surface layer of highway

Abstract

The utility model belongs to the technical field of road construction, and particularly relates to a prime coat oil spraying device between a road base layer and a road surface layer, which comprises a rubber apron, a prime coat oil nozzle is wrapped on the top of the rubber apron, an isolation plate is fixedly arranged in the middle of the rubber apron, and a plurality of small nozzles are arranged on the isolation plate. The spreader, the prime coat oil nozzle, the rubber apron and the isolation plate jointly define a prime coat oil pressurization area, the isolation plate, the rubber apron and the pavement base layer jointly define a compressed gas pressurization area, the rubber apron is provided with an air inlet hole, the air inlet hole is connected with a pipeline, and the pipeline is connected with an air source. According to the utility model, through the arrangement of the rubber apron, splashing of the prime coat oil is avoided, a heat preservation effect is provided for the prime coat oil, meanwhile, the prime coat oil is sprayed out through the small nozzle after being pressurized for the first time in the prime coat oil pressurization area, and the prime coat oil is sprayed out through the compressed gas by introducing compressed gas into the compressed gas pressurization area. And pressurizing the prime coat oil which does not penetrate into the pavement base layer to ensure that the prime coat oil permeates into the pavement base layer.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, and in particular relates to a device for spreading penetrating oil between a highway base layer and a surface layer. Background Art

[0002] In road construction, it is usually necessary to spread penetrating oil to fill the open gaps on the surface of the pavement base, bond the loose particles together, ensure the integrity of the pavement base surface and the bonding strength of the asphalt film, and ensure the connection strength between the pavement base and the surface layer. The spreading of penetrating oil is usually carried out using a spreader. In the current spreading process of penetrating oil, it is directly sprayed and spread through the nozzle at the lower end of the spreader. On the one hand, the penetrating power of the penetrating oil into the pavement base is insufficient, and the depth of the penetrating oil entering the pavement base cannot be guaranteed, which affects the bonding strength between the pavement layers. On the other hand, after the penetrating oil is spread on the surface of the pavement base, it bounces up and falls, and its penetrating power is further weakened, and it cannot penetrate into the pavement base. At the same time, after the penetrating oil leaves the nozzle, heat exchange occurs between it and the air, causing a drop in temperature that affects its effect. Summary of the invention

[0003] The utility model aims to solve the problems that the existing work of directly spreading penetrating oil through the nozzle on the spreader cannot ensure the spreading effect of the penetrating oil, the force of the penetrating oil that bounces up is insufficient after falling, and it cannot penetrate into the road base layer, thus affecting the spreading effect; on the other hand, the heat loss of the penetrating oil affects the use effect. A penetrating oil spreading device between the road base layer and the surface layer is provided, and a rubber apron is provided to avoid the splashing of the penetrating oil and provide a heat preservation effect for the penetrating oil. At the same time, the penetrating oil is pressurized once in the penetrating oil boosting area and then sprayed out from a small nozzle to complete the spreading of the penetrating oil. Compressed gas is introduced into the compressed gas boosting area to pressurize the penetrating oil that bounces up and falls and the penetrating oil that does not penetrate into the road base layer to ensure the depth of its penetration into the road base layer, thereby effectively ensuring the spreading effect of the penetrating oil.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A device for spreading permeable oil between a highway base layer and a surface layer is arranged at the periphery of a permeable oil nozzle on a spreading machine, the outlet of the permeable oil nozzle faces the road base layer below, and comprises a rubber apron, the top of the rubber apron is sealed and wraps the permeable oil nozzle, an isolation plate is fixedly arranged in the middle of the rubber apron, and a plurality of small nozzles with openings facing downward are arranged on the isolation plate; the permeable oil nozzle, the rubber apron and the isolation plate together form a permeable oil pressurization area for permeable oil pressurization injection, the isolation plate, the rubber apron and the road base layer together form a compressed gas pressurization area to ensure the permeability of the permeable oil after entering the road base layer, an air inlet is provided on the rubber apron corresponding to the compressed gas pressurization area, the air inlet is connected to a pipeline, the pipeline is connected to an air source for providing compressed gas, the permeable oil is insulated and splash-proofed through the rubber apron, the permeable oil is spread by high-pressure injection of the small nozzles after the permeable oil is pressurized in the permeable oil pressurization area, and the permeable oil remaining on the surface of the road base layer penetrates into the road base layer under the pressure of the compressed gas.

[0006] Preferably, the upper part of the rubber apron is wrapped and sealed with the penetration oil nozzle, and the lower end is in close contact with the surface of the road base, so as to ensure the pressurization effect of the penetration oil and avoid leakage.

[0007] Preferably, the layer-penetrating oil nozzles are provided in plurality, and the maximum flow of the plurality of layer-penetrating oil nozzles is greater than the maximum flow of the plurality of small nozzles, thereby ensuring the pressurization effect of the layer-penetrating oil in the layer-penetrating oil pressurization area.

[0008] Preferably, the plurality of small nozzles are evenly distributed on the isolation plate to ensure uniform distribution of the penetrating oil.

[0009] Preferably, the gas source is an air compressor.

[0010] Through the above technical solution, the beneficial effects of the utility model are:

[0011] 1. The utility model prevents the problem of the penetration oil splashing and not being effectively utilized during the spreading process by providing a rubber apron to keep the penetration oil warm, so that the splashed penetration oil hits the rubber apron and falls into the spreading area again.

[0012] 2. The utility model arranges an isolation plate and a plurality of small nozzles in the rubber apron, and makes the amount of penetrating oil entering the penetrating oil pressurization area greater than the output, thereby ensuring that the pressure of the penetrating oil sprayed from the small nozzle becomes larger, and the spreading effect of the penetrating oil is ensured. The penetrating oil during spreading can penetrate deeper into the pavement base layer, reach more of the internal area of ​​the pavement base layer, fill the open gaps on the surface of the base layer, and bond the loose particles together, thereby ensuring the integrity of the base layer surface and the bonding strength of the asphalt film, thereby improving the bonding strength between the asphalt surface layer and the stable crushed stone base layer, and enhancing the interlayer bonding.

[0013] 3. The utility model introduces compressed gas into the compressed gas boosting area below the isolation plate to pressurize the penetrating oil falling on the surface of the pavement base (including the penetrating oil sprayed out from the small nozzle but not penetrating into the pavement base and the penetrating oil bounced and falling on the surface of the pavement base), so that it can effectively penetrate into the pavement base, ensure the particle bonding strength of the pavement base, and ensure the full and effective use of the penetrating oil.

[0014] 4. The utility model injects compressed gas into the compressed gas boosting area to provide pressure to the road base below, so that the penetration of the penetrating oil in the road base is stronger and more uniform, so as to achieve better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is not a structural schematic diagram.

[0016] Figure 2 The utility model is a schematic diagram of the working state when installed on a spreading vehicle.

[0017] The numbers in the attached figure are: 1 is the permeable oil nozzle, 2 is the road surface base, 3 is the rubber apron, 4 is the isolation plate, 5 is the small nozzle, 6 is the permeable oil boost area, 7 is the compressed gas boost area, 8 is the air inlet, 9 is the pipeline, and 10 is the air source. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0019] like Figure 1-2As shown, this embodiment provides a device for spreading penetrating oil between a highway base layer and a surface layer, which is arranged on the periphery of a penetrating oil nozzle 1 on a spreader, and the outlet of the penetrating oil nozzle 1 faces the road base layer 2 below, and comprises a rubber apron 3, the top of the rubber apron 3 is sealed and wraps the penetrating oil nozzle 1, the upper part of the rubber apron 3 wraps and is sealedly connected to the penetrating oil nozzle 1, and the lower end is close to the surface of the road base layer 2, effectively ensuring heat preservation during the spreading of the penetrating oil, an isolation plate 4 is fixedly arranged in the middle of the rubber apron 3, and a plurality of small nozzles 5 with openings facing downward are arranged on the isolation plate 4, and the plurality of small nozzles 5 are evenly distributed on the isolation plate 4, so as to ensure uniformity when the small nozzles 5 spray the penetrating oil, and the penetrating oil is sprayed from the penetrating oil nozzle 1. The permeable oil nozzle 1 sprays onto the isolation plate 4, and the permeable oil is spread through the small nozzle 5. The permeable oil nozzle 1, the rubber apron 3 and the isolation plate 4 together form a permeable oil pressurization area 6 for permeable oil pressurization injection. The permeable oil nozzle 1 is provided in plurality, and the maximum flow rate of the plurality of permeable oil nozzles 1 is greater than the maximum flow rate of the plurality of small nozzles 5, thereby achieving that the permeable oil entering the permeable oil pressurization area 6 (i.e., the permeable oil sprayed by the permeable oil nozzle 1) is greater than the permeable oil sprayed through the small nozzle 5 (i.e., the permeable oil leaving the permeable oil pressurization area 6), thereby ensuring the permeable oil pressure sprayed by the small nozzle 5 and ensuring the penetration ability of the permeable oil sprayed by the small nozzle 5 in the pavement base 2.

[0020] The isolation plate 4, the rubber apron 3 and the pavement base 2 together form a compressed gas pressurization area 7 to ensure the penetration ability of the penetrating oil after entering the pavement base 2. An air inlet 8 is provided on the rubber apron 3 corresponding to the compressed gas pressurization area 7. The air inlet 8 is connected to a pipeline 9. The pipeline 9 is connected to a gas source 10 for providing compressed gas. The gas source 10 is an air compressor. The gas source 10 (air compressor or other equipment providing high-pressure compressed gas) supplies compressed gas to the compressed gas pressurization area 7 through the pipeline 9 to ensure the high-pressure environment of the compressed gas pressurization area 7. Therefore, the penetrating oil that does not penetrate into the pavement base 2 but remains on the surface of the pavement base 2 among the penetrating oil spread by the small nozzle 5, and the penetrating oil that bounces back after being spread on the pavement base 2 and is blocked by the rubber apron 3 and then falls on the surface of the pavement base 2 again, penetrate into the pavement base 2 under the high pressure of the compressed gas pressurization area 7, further ensuring the penetration effect of the penetrating oil.

[0021] When in use, the spreading vehicle is moving, and the permeable oil is sprayed from the permeable oil nozzle 1 into the permeable oil boosting area 6. At the same time, the air compressor is started to input high-pressure compressed gas into the compressed gas boosting area 7 through the pipeline 9 and the air inlet 8, and then sprayed downward through the small nozzle 5 on the isolation plate 4. At this time, since the permeable oil flow entering the permeable oil boosting area 6 through the permeable oil nozzle 1 is greater than the permeable oil flow sprayed out of the permeable oil boosting area 6 through the small nozzle 5, the permeable oil in the permeable oil boosting area 6 is accumulated, and then The impact force of the permeable oil sprayed by the small nozzle 5 is enhanced and the flow rate is accelerated. When the speed of the permeable oil sprayed by the small nozzle 5 reaches a certain level, the permeable oil entering the permeable oil pressurization area 6 through the permeable oil nozzle 1 is the same as the permeable oil flow rate of the permeable oil sprayed out of the permeable oil pressurization area 6 through the small nozzle 5, and it is ensured that the permeable oil sprayed by the small nozzle 5 passes through the compressed gas pressurization area 7 with a greater pressure than the permeable oil sprayed by the permeable oil nozzle 1 and falls on the pavement base 2, and penetrates into the pavement base 2 by means of its high-pressure impact.

[0022] During this process, most of the penetrating oil penetrates into the pavement base 2, and the remaining part remains on the surface of the pavement base 2 or has a shallow penetration depth due to insufficient pressure. Another part of the penetrating oil rebounds after impacting the pavement base 2, is blocked by the rubber apron 3, and then falls on the surface of the pavement base 2. Due to the high-pressure environment of the compressed gas boosting area 7, the compressed gas therein penetrates into the pavement base 2 to ensure the spreading effect of the penetrating oil. Due to the high-pressure spraying of the penetrating oil by the small nozzle 5 and the pressure of the compressed gas boosting area 7, the penetration ability of the spread penetrating oil is enhanced, filling the open gaps on the surface of the base, bonding the loose particles together, ensuring the integrity of the base surface and the bonding strength of the asphalt film, thereby improving the bonding strength between the asphalt surface layer and the stable crushed stone base, and enhancing the interlayer bonding.

[0023] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A device for spreading penetrating oil between a road base layer and a road surface layer, arranged on the periphery of a penetrating oil nozzle (1) on a spreading machine, wherein the outlet of the penetrating oil nozzle (1) faces directly to the road surface base layer (2) below, and characterized in that: It comprises a rubber apron (3), the top of the rubber apron (3) is sealed and wraps the permeable oil nozzle (1), an isolation plate (4) is fixedly arranged in the middle of the rubber apron (3), and a plurality of small nozzles (5) with openings facing downwards are arranged on the isolation plate (4); The permeable oil nozzle (1), the rubber apron (3) and the isolation plate (4) together form a permeable oil boosting area (6) for boosting the permeable oil injection. The isolation plate (4), the rubber apron (3) and the pavement base (2) together form a compressed gas boosting area (7) to ensure the permeability of the permeable oil after entering the pavement base (2). An air inlet (8) is provided on the rubber apron (3) corresponding to the compressed gas boosting area (7). The air inlet (8) is connected to a pipeline (9). The pipeline (9) is connected to a gas source (10) for providing compressed gas.

2. A device for spreading penetrating oil between the base layer and the surface layer of a highway according to claim 1, characterized in that: The upper part of the rubber apron (3) wraps around and is sealed to the permeable oil nozzle (1), and the lower end is in close contact with the surface of the road base (2).

3. The device for spreading penetrating oil between the base layer and the surface layer of a highway according to claim 1, characterized in that: The layer-penetrating oil nozzles (1) are arranged in plurality, and the maximum flow rate of the plurality of layer-penetrating oil nozzles (1) is greater than the maximum flow rate of the plurality of small nozzles (5).

4. The device for spreading penetrating oil between the base layer and the surface layer of a highway according to claim 1, characterized in that: The plurality of small nozzles (5) are evenly distributed on the isolation plate (4).

5. The device for spreading penetrating oil between the base layer and the surface layer of a highway according to claim 1, characterized in that: The air source (10) is an air compressor.

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