Small hand-push type heating and dehumidifying asphalt crack pouring equipment
By using heat exchange pipes to heat air to purge and dehumidify in asphalt seam filling equipment, combined with protective frames and thermometers, the problem of residual moisture on the road surface affecting repair is solved, and efficient dehumidification and low-cost repair effects are achieved.
Patent Information
- Application Number
- CN202420585013.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-25
AI Technical Summary
When repairing road cracks, existing asphalt seam filling equipment will have residual moisture on the road due to weather, which will affect the adhesion between asphalt and seam filling. The use of activated carbon adsorption devices requires frequent replacement and increase costs.
A small hand-push heating and dehumidification asphalt jointing equipment is designed, using heat exchange pipes to heat air and transport it to the road surface through a fan, purge and dehumidify, avoid harmful gas emissions, and combine protective frames, insulation layers and bimetal thermometers to reduce the equipment. Cost and improve heat utilization.
It achieves efficient dehumidification, reduces the cost of equipment usage, avoids harmful gas emissions, improves repair efficiency and heat utilization of equipment, and reduces dependence on activated carbon.
Smart Images
Figure CN222205962U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of highway maintenance equipment, in particular to a small hand-push type heating and dehumidifying asphalt crack filling equipment. Background Art
[0002] With the improvement of living standards, a good traffic road environment is an important basis for ensuring people's driving and convenient life. In order to further improve people's travel quality, it is necessary to continuously innovate and optimize the traffic management system on the basis of maintaining the existing traffic environment. The highway management department is vigorously building new highways, but in the long-term use of asphalt highways, cracks of varying degrees will appear on the road surface. If they are not repaired in time, the cracks will gradually expand and deepen, seriously affecting the flatness and driving safety of the highway. Through timely and effective repair work, the service life of the highway can be extended, driving comfort can be improved, and people's travel safety can be guaranteed. Asphalt grouting equipment is an important tool for roadbed maintenance work. It is an essential equipment to reduce labor intensity and improve work efficiency. However, during the crack grouting and repair work of the pavement, sometimes due to the influence of weather, water will remain in the cracks of the pavement. These residual water will affect the adhesion between the pavement asphalt and the modified asphalt for grouting, thereby affecting the repair effect of the cracks in the asphalt pavement. The Chinese utility model patent with application number CN202120732384.1 provides a caulking device for cracks in an asphalt pavement, which is provided with a drying mechanism, which includes a purification box and a fan. An air suction duct is provided on the top of the purification box, which is connected to a storage box. A fan is fixedly installed at the bottom end of the purification box, and two layers of metal filters are fixedly installed at the top end of the purification box. Activated carbon is filled between the two layers of metal filters. When the device is used, it is necessary to start the fan to extract hot air from the storage box, and the harmful components mixed in the hot air are adsorbed by the filtering activated carbon layer in the purification box. Finally, the filtered hot air is blown and dehumidified to the cracks in the pavement. However, there are still some problems when using the device: in order to avoid the harmful substances in the gas in the storage box being discharged into the air along with the hot air, which has an adverse effect on the health of the operator, it is necessary to frequently replace the activated carbon when using the device, which increases the use cost of the equipment. Therefore, it is necessary to design a small hand-push heating and dehumidification asphalt caulking device with high heat utilization and low equipment use cost. Utility Model Content
[0003] In view of the above technical problems, the utility model provides a small hand-pushed heating and dehumidifying asphalt grouting equipment which can utilize the heat of grouting modified asphalt to remove moisture from road cracks without exhausting harmful gases and has low use cost.
[0004] In order to solve the above technical problems, the technical solution of the utility model is: a small hand-push heating and dehumidification asphalt grouting equipment, including a chassis and a push handle frame, the bottom of the chassis is fixedly connected to a universal wheel, the push handle frame is fixedly connected to one side of the chassis, the chassis is connected to a power supply, a heating tank, an asphalt pump, and a support seat, the upper end of the heating tank is provided with a feeding port, an electric heater is arranged inside, and a discharge port is opened on the lower side, a one-way valve is installed on the discharge port and is connected to the asphalt pump inlet, a heat exchange tube is wound around the outer wall of the heating tank, the air inlet of the heat exchange tube is fixedly connected to the upper end of the heating tank, the air outlet of the heat exchange tube is connected to a fan fixedly connected to the support seat, the fan outlet is connected to an air blowing port through a purge pipe, the asphalt pump outlet is connected to a nozzle through a feed pipe, the air blowing port and the nozzle are both located on one side of the chassis, and the power supply is electrically connected to the electric heater, the asphalt pump and the fan.
[0005] Furthermore, the power source is one of a generator and a battery, a protection frame is fixedly connected to the chassis, and the power source is placed in the protection frame.
[0006] Furthermore, the outer side of the heating tank is conformally covered with a thermal insulation layer, and the heat exchange tube is located between the thermal insulation layer and the outer wall of the heating tank.
[0007] Furthermore, a bimetallic thermometer is installed on the side of the heating tank, and the bimetallic thermometer is fixedly connected 15cm-25cm above the electric heater.
[0008] Furthermore, a stirring rod is rotatably connected to the top of the heating tank through a bearing, a stirring motor is fixedly connected to the upper end of the heating tank, the top end of the stirring rod is fixedly connected to the output end of the stirring motor, and the stirring motor is electrically connected to the power supply.
[0009] Furthermore, a control switch is fixedly connected to the upper end of the push handle frame, and the electric heater, asphalt pump and fan are all controlled by the control switch.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] 1. The utility model adds a heat exchange pipe wound around the outside of the heating tank, so that the air flowing through the heat exchange pipe absorbs heat and rises in temperature, and then is transported to the air outlet through the fan to blow away the residual moisture in the road cracks that need to be repaired, thereby accelerating the volatilization of moisture, facilitating subsequent crack repair work, and improving the heat utilization rate of the equipment; because the air is heated and then blown and dehumidified, harmful gas components in the heating tank are prevented from being discharged into the air, and the additional setting of harmful gas adsorption devices is avoided, thereby reducing the use cost of the equipment.
[0012] 2. The utility model sets a protective frame and places the power supply in the protective frame to prevent the power supply from being damaged by collision or squeezing. By wrapping the outside of the heating tank with an insulating layer, unnecessary heat loss when the equipment is in use can be reduced. A bimetallic thermometer is installed on the side of the heating tank to display the temperature inside the tank in real time, providing a reference for the operator whether to heat the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] Figure 2 It is a schematic diagram of the internal structure of the heating tank of the utility model.
[0015] In the figure: 1. chassis, 2. push handle frame, 3. universal wheel, 4. power supply, 5. heating tank, 51. feeding port, 52. discharge port, 53. insulation layer, 6. asphalt pump, 7. support seat, 8. electric heater, 9. heat exchange tube, 91. air inlet, 10. fan, 11. purge pipe, 12. air outlet, 13. conveying pipe, 14. nozzle, 15. protection frame, 16. bimetallic thermometer, 17. stirring rod, 18. stirring motor, 19. control switch. DETAILED DESCRIPTION
[0016] The utility model will be further described below in conjunction with the accompanying drawings.
[0017] like Figure 1 , Figure 2 The small hand-pushed heating and dehumidifying asphalt grouting equipment shown in the figure comprises a chassis 1 and a push handle frame 2. The bottom of the chassis 1 is fixedly connected with a universal wheel 3, and the universal wheel 3 is arranged in two groups in pairs. The push handle frame 2 is fixedly connected to one side of the chassis 1. The chassis 1 is connected with a power supply 4, a heating tank 5, an asphalt pump 6, and a support seat 7. The upper end of the heating tank 5 is provided with a feeding port 51, an electric heater 8 is arranged inside, and a discharge port 52 is provided on the lower side. A one-way valve is installed on the discharge port 52 and is connected to the inlet of the asphalt pump 6. The feeding port 5 1 is hinged with a sealing cover at the top, a heat exchange tube 9 is wound on the outer wall of the heating tank 5, an air inlet 91 of the heat exchange tube 9 is fixedly connected to the upper end of the heating tank 5, an air outlet of the heat exchange tube 9 is communicated with a fan 10 fixedly connected to the support seat 7, the air passing through the heat exchange pipeline absorbs the heat of the heating tank and is heated, the outlet of the fan 10 is connected to the blowing port 12 through the purge pipe 11, the outlet of the asphalt pump 6 is connected to the nozzle 14 through the feed pipe 13, and the power supply 4 is electrically connected to the electric heater 8, the asphalt pump 6, and the fan 10.
[0018] In order to prevent the power source 4 from being accidentally hit when adding modified asphalt into the heating tank 5, a protective frame 15 is added to the outer periphery of the power source 4, wherein the power source 4 is a generator or a battery, the protective frame 15 is fixedly connected to the chassis 1, and the power source 4 is placed in the protective frame 15.
[0019] In order to keep the heating tank warm and reduce unnecessary heat dissipation during operation, the outer side of the heating tank 5 is covered with an insulation layer 53, and the heat exchange tube 9 is located between the insulation layer 53 and the outer wall of the heating tank 5. In addition to keeping the heating tank 5 warm, the insulation layer 53 also provides insulation for the heat exchange tube 9. In this embodiment, the insulation material filled in the insulation layer is glass fiber wool.
[0020] In order to facilitate the operator to obtain the real-time temperature of the modified asphalt in the heating tank 5 and avoid the performance of the modified asphalt being affected by excessively high heating temperature, a bimetallic thermometer 16 is installed on the side of the heating tank 5. In this embodiment, the bimetallic thermometer 16 is located 20 cm above the electric heater 8, and the model of the bimetallic thermometer is WSS-484.
[0021] In order to accelerate the softening of the modified asphalt in the heating tank 5, a stirring rod 17 is rotatably connected to the top of the heating tank 5 through a bearing, and a stirring motor 18 is fixedly connected to the upper end of the heating tank 5. The top of the stirring rod 17 is fixedly connected to the output end of the stirring motor 18, and the power supply 4 supplies power to the stirring motor 18, and the stirring motor 18 has an independent power switch.
[0022] In order to facilitate the operator to control the operation of the equipment, a control switch 19 is fixedly connected to the upper end of the push handle frame, and the electric heater 8, the asphalt pump 6, and the fan 10 are all controlled by the control switch 19.
[0023] The specific working process of the utility model is as follows:
[0024] The equipment of the utility model is transported to the road surface repair work site. After the grooving work of repairing the road surface cracks is completed, the equipment is used to repair the cracks. After the power supply 4 is placed in the protective frame 15 and the circuit is turned on, the sealing cover of the feeding port 51 at the upper end of the heating tank 5 is opened, and the modified asphalt for road surface repair cracks is added into the tank, and the sealing cover of the feeding port 51 is closed. The temperature reading on the bimetallic thermometer is observed. If the temperature does not meet the use requirements of the repair work, the electric heater 8 is turned on the control switch 19 to heat the modified asphalt in the tank, and the stirring motor 18 is turned on to drive the stirring rod 17 to stir the modified asphalt to accelerate the heating of the modified asphalt. When the temperature rises to the required working temperature, the electric heater 8 is turned off on the control switch 19. The insulation layer 53 can keep the heating tank 5 and the heat exchange tube 9 warm. The operator pushes the push handle 2 to push the equipment to the crack to be repaired, and the bottom The air port 12 on one side of the disk 1 is aimed at the crack, and the fan 10 is controlled to be turned on on the control switch 19. The hot air in the heat exchange tube 9 is blown out through the air port 12 through the fan 10 and the purge pipe 11 in turn to accelerate the volatilization of moisture in the crack. After the crack is purged and dried, the fan 10 is turned off, and the equipment is moved again. The nozzle 14 next to the air port 12 is aimed at the dry crack, and the one-way valve on the discharge port 52 is opened. The asphalt pump 6 is controlled to be turned on on the control switch 19. The heat-modified asphalt in the tank passes through the feed pipe 13 under the action of the asphalt pump 6, and is finally poured into the crack through the nozzle 14. The hot air purge and asphalt filling operations are repeated. During this period, the temperature reading of the bimetallic thermometer 16 is read by observation, and the electric heater 5 is intermittently turned on and off to maintain the temperature in the tank. After all the cracks in the road surface are repaired, the stirring motor 18 is turned off, the power supply 4 is removed, and the equipment is cleaned up for next use.
Claims
1. A small hand-push type heating and dehumidifying asphalt caulking equipment, comprising a chassis (1) and a push handle frame (2), wherein the bottom of the chassis (1) is fixedly connected with a universal wheel (3), the push handle frame (2) is fixedly connected to one side of the chassis (1), the chassis (1) is fixedly connected with a heating tank (5), an asphalt pump (6), and a support seat (7), the upper end of the heating tank (5) is provided with a feeding port (51), an electric heater (8) is arranged inside, and a discharge port (52) is provided at the lower side, a one-way valve is installed on the discharge port (52) and is connected to the inlet of the asphalt pump (6), Features: A heat exchange tube (9) is wound around the outer wall of the heating tank (5); an air inlet (91) of the heat exchange tube (9) is fixedly connected to the upper end of the heating tank (5); an air outlet of the heat exchange tube (9) is connected to a fan (10) fixedly connected to the support seat (7); an outlet of the fan (10) is connected to an air blowing port (12) via a purge pipe (11); an outlet of the asphalt pump (6) is connected to a nozzle (14) via a feed pipe (13); the air blowing port (12) and the nozzle (14) are both located on one side of the chassis (1); a power supply (4) is provided on the chassis (1); and the power supply (4) is electrically connected to the electric heater (8), the asphalt pump (6) and the fan (10).
2. According to the small hand-push heating and dehumidification asphalt caulking equipment of claim 1, Features: The power source (4) is one of a generator and a storage battery; a protection frame (15) is fixedly connected to the chassis (1); and the power source (4) is placed in the protection frame (15).
3. According to the small hand-push heating and dehumidification asphalt caulking equipment of claim 1, Features: The outer side of the heating tank (5) is conformally covered with a thermal insulation layer (53), and the heat exchange tube (9) is located between the thermal insulation layer (53) and the outer wall of the heating tank (5).
4. According to the small hand-push heating and dehumidification asphalt caulking equipment of claim 1, Features: A bimetallic thermometer (16) is installed on the side of the heating tank (5), and the bimetallic thermometer (16) is located 15 cm to 25 cm above the electric heater (8).
5. According to the small hand-push heating and dehumidification asphalt caulking equipment of claim 1, Features: The top of the heating tank (5) is rotatably connected to a stirring rod (17) via a bearing, the upper end of the heating tank (5) is fixedly connected to a stirring motor (18), the top end of the stirring rod (17) is fixedly connected to the output end of the stirring motor (18), and the stirring motor (18) is electrically connected to the power supply (4).
6. According to the small hand-push heating and dehumidification asphalt caulking equipment of claim 1, Features: A control switch (19) is fixedly connected to the upper end of the push handle frame, and the electric heater (8), asphalt pump (6) and fan (10) are all controlled by the control switch (19).