Pavement drying equipment

Abstract

The utility model discloses pavement drying equipment. The pavement drying equipment comprises a base, the gas bottle is arranged on the base; the fire spraying assembly is arranged on the front side of the base and provided with a fire spraying opening facing the road surface to be dried; the gas supply pipeline is connected with the gas bottle and the flaming assembly and used for providing combustible gas for the flaming assembly; the ignition device is arranged at the outlet of the gas supply pipeline and is used for igniting combustible gas, so that the fire spraying opening of the fire spraying assembly sprays fire; the fire spraying assembly comprises at least two detachable fire spraying modules connected side by side, gas channels communicated with the gas supply pipeline are arranged in the fire spraying modules, the gas channels of the different fire spraying modules are communicated with one another, and the fire spraying openings are formed in the side walls of the gas channels. A user can freely splice the modules according to the width of a road surface, so that the fire spraying width can meet the requirements of different construction scenes, and efficient drying can be achieved through the spliced modules no matter a narrow sidewalk or a wide lane.

Description

TECHNICAL FIELD

[0001] The utility model relates to road engineering technical field especially, relate to a road surface drying equipment. BACKGROUND

[0002] In the road construction process, the road surface often has moisture due to various reasons. First, the rainfall before construction or groundwater infiltration will cause the road surface to be wet; second, the concrete, asphalt and other materials used in the construction process themselves contain a certain amount of moisture. If these moisture is not handled in time, it will seriously affect the construction quality. Therefore, in road construction, ground drying is a crucial link.

[0003] At present, some ground drying equipment has been proposed and applied in actual construction. For example, patent CN221218449U discloses a ground drying device, which dries by blowing. But the efficiency of air flow drying is limited, so some patents have made improvements, such as CN 218508207 U discloses a road surface drying equipment for road construction, which directs the fuel in the fuel tank to the flame nozzle and blows out after ignition by the igniter. The flame will continue to burn to form a local constant high-temperature air, thereby accelerating the drying time of the road surface and ensuring that the subsequent marking is not affected.

[0004] However, the flame spraying structure of this device has defects, and the flame spraying width cannot be adjusted according to the road surface width, and the adaptability is poor. When facing a wider road surface, the drying efficiency of the device is low; when the road surface is narrower, it may even not work. And this will also cause uneven drying effect, the farther away from the flame nozzle, the worse the drying effect, and it is easy to appear the phenomenon that some areas are not completely dried. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a road surface drying equipment with adjustable flame spraying width.

[0006] The utility model adopts the technical scheme that a road surface drying equipment comprises

[0007] A base;

[0008] A gas cylinder is arranged on the base;

[0009] A flame spraying assembly is arranged on the front side of the base and has a flame spraying port facing the road surface to be dried;

[0010] A gas supply pipeline connects the gas cylinder and the flame spraying assembly and is used for supplying combustible gas to the flame spraying assembly;

[0011] An ignition device is arranged at the outlet of the gas supply pipeline and is used for igniting the combustible gas to make the flame spraying port of the flame spraying assembly spray flame;

[0012] The fire spraying assembly comprises at least two detachable fire spraying modules connected side by side, the fire spraying modules have gas passages in communication with the gas supply pipeline, the gas passages of different fire spraying modules are in communication with each other, and the side walls of the gas passages are provided with the fire spraying openings.

[0013] To further avoid local uneven drying, preferably, the fire spraying modules are uniformly provided with a plurality of the fire spraying openings.

[0014] Preferably, the pavement drying device further comprises a protective cover with an open bottom, the protective cover is directly or indirectly connected with the base, the fire spraying assembly is arranged in the protective cover, the protective cover is provided with a gas supply opening, and the gas supply pipeline passes through the gas supply opening and connects the fire spraying assembly in the protective cover to supply gas. The protective cover can effectively block the flame and high-temperature gas to ensure the safety of the operator, and the protective cover also has a heat insulation effect to reduce heat loss and further improve the drying efficiency.

[0015] To facilitate the adjustment of the fire spraying height, preferably, the front side of the base is fixedly provided with a support frame, the left and right sides of the support frame are respectively provided with an adjusting plate capable of moving up and down relative to the support frame to adjust, and the adjusting plate is connected with the protective cover. The adjusting plate can drive the protective cover, and the fire spraying assembly arranged in the protective cover moves together with the protective cover, so that the fire spraying height is adjusted.

[0016] To make the drying effect more uniform, preferably, the gas supply opening is arranged on the side of the protective cover, the gas supply pipeline is connected with the gas passage of the outermost fire spraying module of the fire spraying assembly after entering from the gas supply opening, and the direction of the airflow flowing out of the gas supply pipeline is parallel to the gas passage. This structure can effectively avoid that the gas in the gas supply pipeline directly hits the nearest fire spraying opening, thereby avoiding the situation that the area close to the gas supply pipeline is over-dried while the area far away from the gas supply pipeline is not completely dried.

[0017] Preferably, the pavement drying device further comprises an air blower for providing air, and the gas supply pipeline is further connected with the air blower. The air input from the air blower and the gas input from the gas cylinder are mixed into combustible gas in the gas supply pipeline and output to the fire spraying assembly.

[0018] As preferred, the gas supply pipeline is sequentially provided with a control valve, a primary pressure reducing valve, a filter, a secondary pressure reducing valve, a detector and a solenoid valve from upstream to downstream along the gas flow path, and the air blower is connected to the gas supply pipeline after the solenoid valve. The gas is pressure-regulated by the primary and secondary pressure reducing valves to ensure stable gas flow. Impurities are removed and the gas is controlled to be on or off by the filter and the solenoid valve. The filtered gas is detected by the detector and then mixed with the air provided by the air blower to form combustible gas. The mixed gas is delivered to the flame spouting opening through the pipeline and ignited through the ignition pipeline. After ignition, the flame burns evenly at the flame spouting opening to form a high-temperature flame.

[0019] For easy ignition, as preferred, the ignition device comprises an ignition pipeline which connects the gas cylinder and the gas passage to guide pure gas from the gas cylinder to the flame spouting assembly.

[0020] As preferred, the pavement drying device further comprises a protection cabin provided on the base, and the gas supply pipeline and the ignition pipeline both pass through the protection cabin, and the primary pressure reducing valve, the filter, the secondary pressure reducing valve, the detector, the solenoid valve and the air blower are arranged inside the protection cabin.

[0021] To improve the maneuverability of the utility model, as preferred, a walking device is mounted on the bottom surface of the base, and a handrail for pushing and pulling the base is mounted on the upper surface of the base.

[0022] Compared with the prior art, the flame spouting assembly of the utility model adopts modular design, and the flame spouting modules can be quickly connected and detached through module bolts. Users can freely splice the modules according to the width of the pavement, so that the flame spouting width can adapt to the needs of different construction scenes. Whether it is a narrow sidewalk or a wide lane, efficient drying can be achieved by splicing the modules. This modular design not only enhances the adaptability of the device, but also facilitates transportation and storage. At the same time, the flame spouting openings are distributed on each flame spouting module, which also makes the drying effect more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure schematic view of the embodiment of the utility model;

[0024] Figure 2 The structure schematic view of the embodiment of the utility model; Figure 1 The enlarged schematic view of A in the structure schematic view of the embodiment of the utility model;

[0025] Figure 3 The bottom view schematic view of the flame spouting assembly of the embodiment of the utility model;

[0026] Figure 4 The bottom view schematic view of the flame spouting assembly of the embodiment of the utility model in the case of narrowing the flame spouting width;

[0027] Figure 5The structure diagram of the spray fire module of the embodiment of the utility model. DETAILED DESCRIPTION

[0028] The utility model will be described further in detail below in combination with the drawings.

[0029] As Figures 1-5 shown, it is a preferred embodiment of the pavement drying equipment of the utility model.

[0030] The embodiment comprises a base 1, as Figure 1 shown, a walking device 3 such as universal wheel is arranged below the base 1, and a handrail 2 for pushing and pulling the base 1 is installed above the base 1. The operator can easily adjust the position and direction of the equipment, ensure to supplement the drying of the missed area on the pavement, and improve the flexibility and efficiency of construction.

[0031] A gas cylinder 5 for providing gas and a blower 11 for providing air are fixedly arranged above the base 1, a gas supply pipeline 6 mixes the gas input from the gas cylinder 5 and the air input from the blower 11 into combustible gas and outputs the combustible gas to the spray fire assembly. The spray fire assembly is arranged at the front side of the base 1 and has a spray fire port 19 towards the pavement to be dried. Another ignition device is arranged at the outlet of the gas supply pipeline 6 and is used for igniting the combustible gas, so that the spray fire port 19 of the spray fire assembly sprays fire and forms high-temperature air around the spray fire port 19 to accelerate the drying of the pavement. The ignition device comprises a striking pipeline 7, and the striking pipeline 7 guides the pure gas in the gas cylinder 5 to the spray fire assembly.

[0032] As Figure 3 shown, the spray fire assembly comprises at least two detachable spray fire modules 18 connected side by side, the spray fire module 18 has a gas passage 21 in communication with the gas supply pipeline 6 inside, the gas passages 21 of different spray fire modules 18 are in communication with each other, and the spray fire module 18 is provided with the above-mentioned spray fire port 19 on the surface, and the spray fire port 19 is in communication with the gas passage 21. In order to further avoid the situation that the local drying is uneven, a plurality of spray fire ports 19 are uniformly distributed on the surface of the spray fire module 18, as Figure 5 shown.

[0033] The bottom surface of the protective cover 8 is open, the front side of the base 1 is fixedly provided with a support frame 9, the left and right sides of the support frame 9 are each provided with an adjusting plate 10 capable of moving up and down relative to the support frame 9, and the protective cover 8 is connected to the support frame 9 through the adjusting plate 10. The protective cover 8 covers the above-mentioned flame spraying assembly, and the flame spraying assembly is fixed in the protective cover 8 through a threaded connection structure. The protective cover 8 is provided with a gas supply port 17, and the gas supply pipeline 6 is connected to the gas passage 21 of the flame spraying module 18 in the protective cover 8 after passing through the gas supply port 17 and supplies gas to the gas passage 21. The protective cover 8 can effectively block the flame and high-temperature gas, ensuring the safety of the operator. At the same time, the protective cover 8 also has a heat insulation effect, reduces heat loss, and further improves the drying efficiency. The flame spraying module 18 arranged in the protective cover 8 moves together with the protective cover 8 by moving the adjusting plate 10, so that the flame spraying height is adjusted.

[0034] The gas supply port 17 is arranged on the side of the protective cover 8, the gas supply pipeline 6 is connected to the gas passage 21 of the outermost flame spraying module 18 of the flame spraying assembly after entering from the gas supply port 17, the direction of the gas flow out of the gas supply pipeline 6 is parallel to the gas passage 21, and the flame spraying port 19 is arranged on the side wall of the gas passage 21, so that the gas in the gas supply pipeline 6 is effectively prevented from directly colliding with the nearest flame spraying port 19, and the situation that the area close to the gas supply pipeline 6 is excessively dried while the area far away is not completely dried is avoided.

[0035] As shown in Figure 2 , the base 1 of the embodiment is provided with a control chamber for controlling the flow of each pipeline, and the inner cavity of the control chamber forms a protection bin 4. The gas supply pipeline 6 and the ignition pipeline 7 both pass through the protection bin 4, and the protection bin 4 is provided with a control valve, a first pressure reducing valve 12, a filter 13, a second pressure reducing valve 14, a detector 22 and an electromagnetic valve 15 on the gas supply pipeline 6 from upstream to downstream along the gas flow path. The above-mentioned air blower 11 is also arranged in the protection bin 4, and the air blower 11 is connected to the gas supply pipeline 6 after the electromagnetic valve. The gas is pressure-regulated by the first pressure reducing valve 12 and the second pressure reducing valve 14 to ensure stable gas flow. By passing through the filter 13 and the electromagnetic valve 15, impurities are removed and the gas is controlled to be turned on and off, and the filtered gas is detected by the detector 22 after passing through and then mixed with the air provided by the air blower 11 to form a combustible gas. The mixed gas is delivered to the flame spraying port 19 through the gas supply pipeline 6, and is ignited through the ignition pipeline 7. After ignition, the flame burns uniformly at the flame spraying port 19 to form a high-temperature flame.

[0036] The flame spraying assembly of the embodiment adopts a modular design, and each flame spraying module 18 is quickly connected and detached through a module bolt. Users can freely splice modules according to the width of the road surface, so that the flame spraying width can adapt to the needs of different construction scenes. When the road surface to be dried is wide (as shown in Figure 3 ), a sufficient number of flame spraying modules 18 should be installed in the protective cover 8; if the road surface is narrow (as shown inFigure 4 If the number of the fire-spewing modules 18 is less than the number of the air supply ports 17 (as shown), the fire-spewing modules 18 need to be disassembled from the end far away from the air supply ports 17, and a bottom plate 20 is added to the end of the fire-spewing modules 18 far away from the air supply ports 17 in the protective cover 8 to block the gas passage 21. This modular design not only enhances the adaptability of the equipment, but also facilitates transportation and storage. At the same time, the distribution of the fire-spewing ports 19 on each fire-spewing module 18 also makes the drying effect more uniform.

Claims

1. A pavement drying device, comprising a base (1); a gas cylinder (5) arranged on the base (1); a flame spraying assembly arranged on the front side of the base (1) and having a flame spraying opening (19) facing the pavement to be dried; a gas supply pipeline (6) connecting the gas cylinder (5) and the flame spraying assembly and used for supplying combustible gas to the flame spraying assembly; an ignition device arranged at the outlet of the gas supply pipeline (6) and used for igniting the combustible gas to make the flame spraying opening (19) of the flame spraying assembly spray flame; characterized in that the flame spraying assembly comprises at least two detachable flame spraying modules (18) connected side by side, each of the flame spraying modules (18) has a gas passage (21) communicating with the gas supply pipeline (6), the gas passages (21) of different flame spraying modules (18) communicate with each other, and the side wall of the gas passage (21) is provided with the flame spraying opening (19).

2. The track drying apparatus of claim 1, wherein, The surface of the flame spraying module (18) is uniformly provided with a plurality of flame spraying openings (19).

3. The track drying apparatus of claim 1, wherein, Further comprising a protective cover (8) with an open bottom, the protective cover (8) is directly or indirectly connected with the base (1), the flame spraying assembly is arranged in the protective cover (8), the protective cover (8) is provided with a gas inlet (17), and the gas supply pipeline (6) passes through the gas inlet (17) to connect the flame spraying assembly in the protective cover (8) and supply gas thereto.

4. The track drying apparatus of claim 3, wherein, The front side of the base (1) is fixedly provided with a support frame (9), and the left and right sides of the support frame (9) are respectively provided with an adjusting plate (10) capable of moving up and down relative to the support frame (9), and the adjusting plate (10) is connected with the protective cover (8).

5. The track drying apparatus of claim 4, wherein, The gas inlet (17) is arranged on the side of the protective cover (8), the gas supply pipeline (6) is connected with the gas passage (21) of the outermost flame spraying module (18) of the flame spraying assembly after entering from the gas inlet (17), and the direction of the gas flow out of the gas supply pipeline (6) is parallel to the gas passage (21).

6. The track drying apparatus of claim 1, wherein, Further comprising a blower (11) used for supplying air, the gas supply pipeline (6) is further connected with the blower (11), air input from the blower (11) and gas input from the gas cylinder (5) are mixed into combustible gas in the gas supply pipeline (6) and output to the flame spraying assembly.

7. The track drying apparatus of claim 6, wherein, The gas supply pipeline (6) is sequentially provided with a control valve, a primary pressure reducing valve (12), a filter (13), a secondary pressure reducing valve (14), a detector (22) and a solenoid valve (15) along the gas flow path from upstream to downstream, and the blower (11) is connected into the gas supply pipeline (6) after the solenoid valve.

8. The track drying apparatus of claim 7, wherein, The ignition device comprises a striking pipeline (7) connecting the gas cylinder (5) and the gas passage (21) to guide pure gas from the gas cylinder (5) to the flame spraying assembly.

9. The track drying apparatus of claim 8, wherein, Further comprising a protection bin (4) arranged on the base (1), the gas supply pipeline (6) and the striking pipeline (7) both pass through the protection bin (4), and the primary pressure reducing valve (12), the filter (13), the secondary pressure reducing valve (14), the detector (22), the solenoid valve (15) and the blower (11) are arranged in the protection bin (4).

10. The track drying apparatus of claim 1, wherein, The bottom surface of the base (1) is provided with a walking device (3), and the upper surface of the base (1) is provided with a handrail (2) for pushing and pulling the base (1).

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