Color slurry pavement preheating device, color slurry paving equipment and color slurry paving method

Abstract

The present invention provides a color slurry pavement preheating device, color slurry paving equipment and a color slurry paving method, the device comprises: a support frame; a lifting assembly, comprising a guide rail installed at the bottom of the support frame, a vertical guide groove formed in the guide rail, a sliding member slidingly arranged in the guide groove, a traction rope connected to the sliding member, a driving member for pulling the traction rope upwards installed on the support frame; and a fixed heating box for heating the pavement to be paved with the color slurry seal layer, connected to the sliding member, and a plurality of running wheels installed at the bottom of the fixed heating box. The present invention solves the problem of high construction cost and low efficiency of heat preservation measures such as film coating or heat preservation shed for the road color slurry seal layer.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, and in particular to a color slurry pavement preheating device, color slurry paving equipment and a color slurry paving method. Background Art

[0002] During the construction of the colored slurry seal on existing road pavements, the road surface temperature and ambient temperature have a great influence on the curing speed and curing effect of the colored slurry seal. In particular, high-grade roads have more stringent requirements on the construction period. Generally, traffic needs to be opened about 12 hours after the colored slurry seal is completed.

[0003] Generally, when the temperature is greater than or equal to 10℃, the colored paste sealing layer can reach the strength requirements within 12 hours. However, when the temperature is lower than 10℃, corresponding insulation measures are required. The insulation stage is when the colored paste sealing layer transforms from a gel to a solid state and needs to be insulated. Since the colored paste sealing layer needs to have a texture structure, it is impossible to perform film coating and insulation at this stage. However, if an insulation shed is used to insulate the colored paste sealing layer, the required auxiliary materials and labor are large and cannot be implemented. Summary of the invention

[0004] In order to overcome the defects of the prior art, a color slurry pavement preheating device, a color slurry paving equipment and a color slurry paving method are provided to solve the problems of high construction cost and low efficiency of the road color slurry sealing layer using insulation measures such as covering or insulation shed.

[0005] In order to achieve the above-mentioned purpose, a color slurry pavement preheating device, a color slurry paving device and a color slurry paving method are provided, comprising:

[0006] Support frame;

[0007] A lifting assembly, comprising a guide rail installed at the bottom of the support frame, a vertical guide groove formed in the guide rail, the sliding member slidably arranged in the guide groove, the sliding member is connected to a traction rope, and the support frame is equipped with a driving member for pulling the traction rope upward; and

[0008] A fixed heating box for heating the road surface to be paved with a colored slurry seal layer is connected to the sliding member, and a plurality of traveling wheels are installed at the lower part of the fixed heating box.

[0009] Furthermore, it also includes an extended heating box, which is arranged along the paving direction of the colored slurry sealing layer with the fixed heating box. The number of the lifting components is multiple sets, and the sliding part of one of the lifting components is installed with a horizontal pushing component for pushing the extended heating box along the width direction of the colored slurry sealing layer to the outside of the fixed heating box.

[0010] Furthermore, the transverse thrust assembly comprises:

[0011] casing;

[0012] A horizontal thrust cylinder is installed in the first end of the sleeve; and

[0013] A telescopic rod, wherein the first end of the telescopic rod is inserted into the second end of the sleeve, the first end of the horizontal push cylinder is connected to the first end of the telescopic rod, and the second end of the telescopic rod is connected to the expansion heating box.

[0014] Furthermore, the fixed heating box comprises:

[0015] A box body connected to the sliding member of the lifting assembly, the box body having a closed upper edge and an open lower edge, the upper edge being provided with an air blast port;

[0016] A metal heat sink is installed in the lower edge, and the metal heat sink is provided with a plurality of flow-guiding through holes facing the outside of the box body; and

[0017] A heating component for heating the metal heat sink is installed in the box and is located on a side of the metal heat sink close to the upper edge.

[0018] Furthermore, the heating component comprises:

[0019] A combustion chamber is installed in the box body and is located on a side of the metal heat sink close to the upper edge. A first air inlet hole and a plurality of second air inlet holes connected to the tuyere are opened at the upper portion of the combustion chamber. A plurality of flame-spraying holes are opened at the lower portion of the combustion chamber. The flame-spraying holes are aligned with the metal heat sink.

[0020] A fuel pipe for conveying gaseous fuel, passing through the upper edge and connected to the first air inlet; and

[0021] An igniter is installed in the combustion chamber.

[0022] Furthermore, there are multiple heating assemblies, the combustion chamber is equipped with a temperature sensor, the temperature sensor is located below the flame hole, the fuel pipe is equipped with an electric gas valve, and the electric gas valves of the multiple heating assemblies and the temperature sensor are connected to a controller.

[0023] Furthermore, the driving member is a lifting cylinder, the support frame is equipped with a fixed pulley, and the traction rope is wound around the fixed pulley and connected to the lifting cylinder.

[0024] The present invention provides a color paste paving device, comprising:

[0025] Color slurry paver body;

[0026] A color slurry spreading box connected to the rear end of the color slurry spreading machine body; and

[0027] A colored slurry pavement preheating device is arranged in front of the colored slurry paving box, the support frame of the colored slurry pavement preheating device is connected to the bottom of the colored slurry paver body, and the fixed heating box of the colored slurry pavement preheating device is aligned with the pavement on which the colored slurry sealing layer is to be paved.

[0028] Furthermore, insulation components are respectively connected between the two ends of the fixed heating box and the two ends of the color slurry spreading box.

[0029] The present invention provides a color paste paving method, which is characterized by comprising the following steps:

[0030] Turning on the fixed heating box of the color slurry pavement preheating device so that the fixed heating box preheats the pavement on which the color slurry seal layer is to be spread;

[0031] After the road surface is preheated, the color slurry spreading machine body is moved and the color slurry spreading box is opened, and the color slurry spreading box spreads the color slurry sealing layer on the preheated road surface.

[0032] The beneficial effect of the present invention is that the color paste pavement preheating device of the present invention preheats the pavement to be paved with the color paste seal before the color paste paving box paves the color paste seal, and can quickly heat the pavement temperature to about 50°C to 70°C. The fixed heating box is located at the front end of the color paste paving box and is suspended under the tail section operating platform of the chassis of the color paste paver body. The color paste pavement preheating device of the present invention can quickly increase the temperature of the original pavement, and then spread a thin layer of color paste seal. In the initial stage, the color paste mixture is in a colloid state to prevent the rapid decrease in temperature. The heat of the pavement is slowly transferred to the color paste mixture on the surface, which accelerates the curing speed of the color paste mixture. The color paste quickly changes from a colloid state to a solid state, further slowing down the temperature drop, ensuring that the color paste can meet the traffic requirements within 12 hours, without investing a high cost to build an insulation shed, or laying an insulation film to destroy the color paste seal, thereby improving the construction efficiency of the pavement color paste seal.

[0033] In addition, the lifting component can lift the fixed heating box and adjust the height of the fixed heating box on the one hand, and on the other hand, when the lifting component lowers the fixed heating box to the road surface where the colored slurry sealing layer is to be spread, the running wheels of the fixed heating box are supported on the road surface, and the traction rope of the lifting component is in a relaxed state. When the road surface is uneven and undulating, the fixed heating box and the supporting frame form an active connection, which ensures that the fixed heating box always moves on the road surface and maintains a stable heating distance to preheat the road surface, and does not cause inconsistent preset heating temperatures of the road surface due to undulations in the road surface, which affects the inconsistent curing effect of the colored slurry sealing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of the color paste spreading equipment according to an embodiment of the present invention.

[0035] Figure 2 It is a top view of the color paste spreading equipment according to an embodiment of the present invention.

[0036] Figure 3 It is a schematic structural diagram of a color slurry pavement preheating device according to an embodiment of the present invention.

[0037] Figure 4 It is a side view of a color mortar pavement preheating device according to an embodiment of the present invention.

[0038] Figure 5 It is a schematic diagram of the expanded state of the color mortar pavement preheating device according to an embodiment of the present invention.

[0039] Figure 6 It is a schematic diagram of the exploded structure of the fixed heating box according to an embodiment of the present invention.

[0040] Figure 7 It is a cross-sectional view of a fixed heating box according to an embodiment of the present invention.

[0041] Figure 8 Schematic diagram of the structure of a heating component according to an embodiment of the present invention.

[0042] Fig. 9 It is a schematic diagram of the exploded structure of the heating component according to an embodiment of the present invention.

[0043] Fig.10 FIG. 4 is a top view of a heating component according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0045] Figure 1 is a structural schematic diagram of a color paste spreading device according to an embodiment of the present invention, Figure 2 A top view of a color paste spreading device according to an embodiment of the present invention; Figure 3 is a schematic diagram of the structure of a preheating device for color mortar pavement according to an embodiment of the present invention, Figure 4 is a side view of a preheating device for color mortar pavement according to an embodiment of the present invention, Figure 5 Schematic diagram of the expanded state of the color mortar pavement preheating device according to an embodiment of the present invention, Figure 6 Schematic diagram of the exploded structure of the fixed heating box according to the embodiment of the present invention. Figure 7 is a cross-sectional view of a fixed heating box according to an embodiment of the present invention, Figure 8 is a schematic diagram of the structure of a heating component according to an embodiment of the present invention, Fig. 9 is a schematic diagram of the exploded structure of the heating assembly according to an embodiment of the present invention, Fig.10 FIG. 4 is a top view of a heating component according to an embodiment of the present invention.

[0046] Reference Figures 1 to 10 As shown, the present invention provides a color slurry pavement preheating device 3, including: a support frame 31, a lifting component and a fixed heating box 33.

[0047] The lifting assembly includes a guide rail 321 , a sliding member 322 , a traction rope 323 and a driving member 324 .

[0048] Specifically, the guide rail 321 is installed at the bottom of the support frame 31. A vertical guide groove is formed in the guide rail 321. The sliding member 322 is slidably arranged in the guide groove of the guide rail 321. The sliding member 322 is connected to the traction rope 323. The fixed heating box 33 is used to preheat the road surface to be paved with the color slurry seal layer in advance. The fixed heating box 33 is installed on the sliding member 322. The driving member 324 is installed on the support frame 31, and is used to pull the traction rope 323 upward to lift the fixed heating box as a whole. A plurality of walking wheels 337 are installed at the lower part of the fixed heating box 33.

[0049] The support frame is a steel structure frame, the support frame includes four cross beams connected end to end, and the support frame is rectangular. The driving member is installed on the inner side of the cross beam of the support frame.

[0050] During construction, refer to Figure 1 and Figure 2 As shown, the color slurry pavement preheating device 3 of the present invention is installed at the bottom of the color slurry paver body 1 and is located in front of the color slurry paving box 2, and the fixed heating box 33 of the color slurry pavement preheating device 3 is aligned with the pavement on which the color slurry sealing layer is to be spread.

[0051] The color paste pavement preheating device of the present invention preheats the pavement to be paved with the color paste seal before the color paste paving box paves the color paste seal, and can quickly raise the temperature of the pavement to about 50°C to 70°C. The fixed heating box is located at the front end of the color paste paving box and is suspended under the tail section operating platform of the chassis of the color paste paver body. The color paste pavement preheating device of the present invention can quickly increase the temperature of the original pavement, and then spread a thin layer of color paste seal. In the initial stage, the color paste mixture is in a colloid state to prevent the rapid decrease in temperature. The heat of the pavement is slowly transferred to the color paste mixture on the surface, which accelerates the curing speed of the color paste mixture. The color paste quickly changes from a colloid state to a solid state, further slowing down the temperature drop, ensuring that the color paste can meet the traffic requirements within 12 hours, without investing a high cost to build an insulation shed, or laying an insulation film to destroy the color paste seal, thereby improving the construction efficiency of the pavement color paste seal.

[0052] In addition, the lifting component can lift the fixed heating box and adjust the height of the fixed heating box on the one hand, and on the other hand, when the lifting component lowers the fixed heating box to the road surface where the colored slurry sealing layer is to be spread, the running wheels of the fixed heating box are supported on the road surface, and the traction rope of the lifting component is in a relaxed state. When the road surface is uneven and undulating, the fixed heating box and the supporting frame form an active connection, which ensures that the fixed heating box always moves on the road surface and maintains a stable heating distance to preheat the road surface, and does not cause inconsistent preset heating temperatures of the road surface due to undulations in the road surface, which affects the inconsistent curing effect of the colored slurry sealing layer.

[0053] In this embodiment, in order to adapt to various wide road surfaces to be paved with colored slurry sealing layers, the colored slurry road surface preheating device 3 of the present invention also includes an extended heating box 34.

[0054] As a preferred embodiment, the number of the extended heating boxes is multiple. Furthermore, the number of the extended heating boxes is two, and the sum of the lengths of the two extended heating boxes is less than the length of one fixed heating box. The two extended heating boxes are coaxially arranged, and the extended heating box and the fixed heating box are arranged front and back along the length direction of the road surface to be paved with the color slurry seal or the paving direction of the color slurry seal. The extended heating box is arranged behind the fixed heating box, and the extended heating box is located in front of the color slurry paving box.

[0055] Accordingly, the number of lifting assemblies is multiple sets. In this embodiment, the number of lifting assemblies is 7 sets, of which three sets of lifting assemblies are connected to the fixed heating box, and the remaining four sets of lifting assemblies are connected to the extended heating box.

[0056] Specifically, a set of sliding members 322 of the lifting assembly is equipped with a horizontal pushing assembly for pushing the expansion heating box 34 to the outside of the fixed heating box 33 along the width of the color paste seal layer (ie, the road width). Figure 5 As shown, the horizontal push assembly is in an extended state, and the expansion heating box extends to both ends of the fixed heating box. The three are arranged in a herringbone shape, so that the width of the pre-heating of the road surface to be paved with the colored slurry seal can be flexibly adapted.

[0057] Specifically, the horizontal push assembly includes: a sleeve 351, a horizontal push cylinder (not shown in the drawings) and a telescopic rod 353. The horizontal push cylinder is installed inside the first end of the sleeve 351. The first end of the telescopic rod 353 is inserted into the second end of the sleeve 351. The first end of the horizontal push cylinder is connected to the first end of the telescopic rod 353, and the second end of the telescopic rod 353 is connected to the expansion heating box 34. The telescopic rod is extended and retracted by the horizontal push cylinder to push the expansion heating box out from the rear of the fixed heating box or to retract the expansion heating box to the rear of the fixed heating box.

[0058] In this embodiment, the front and rear sides of each expansion heating box are respectively connected to two transverse push assemblies, that is, a total of four transverse push assemblies. Specifically, the sleeves of the four transverse push assemblies are divided into two groups, two sleeves are simultaneously connected to a set of sliding parts of a lifting assembly, and the telescopic rods inserted in the two sleeves are respectively connected to the front and rear sides of an expansion heating box. By controlling the telescopic length of the transverse push cylinders in the two sleeves, the distance that the expansion heating box is pushed out is controlled, thereby adjusting the width of the pre-heated road surface.

[0059] As a preferred embodiment, the driving member 324 is a lifting cylinder. The support frame 31 is equipped with a fixed pulley 325, and the traction rope 323 is wound around the fixed pulley 325 and connected to the lifting cylinder. Specifically, the lifting cylinder is arranged in the horizontal direction. The lifting cylinder is installed on the inner side of the crossbeam of the support frame and is arranged along the length direction of the crossbeam. Each group of lifting components includes at least one fixed pulley. The fixed pulley can make the lifting of the fixed heating box and the expansion heating box smooth on the one hand, and change the setting direction of the traction rope on the other hand, so that the traction rope can be arranged along the length direction of the guide rail and the crossbeam. The extension and retraction of the traction rope is realized by the extension and retraction of the lifting cylinder to lift the fixed heating box and the expansion heating box.

[0060] In this embodiment, the fixed heating box 33 is used to heat the road surface, and includes: a box body 331 , a metal heat sink 332 and a heating assembly 333 .

[0061] See also Figures 6 to 10 As shown, the box body 331 is connected to the sliding member 322 of the lifting assembly. The box body 331 has a closed upper edge and an open lower edge, that is, the box body is a box body with a cover but no bottom. The side wall of the upper edge of the top of the box body is provided with a blast port c. The color paste spreading machine body 1 is equipped with a blower 334. The blower 334 is connected to the blast port c through an air duct 335.

[0062] The metal heat sink 332 is installed in the lower edge of the bottom of the box. The metal heat sink 332 is provided with a plurality of flow-guiding through holes facing the outside of the box 331. The plurality of flow-guiding through holes are evenly distributed on the metal heat sink. In this embodiment, the size of the metal heat sink is adapted to the size of the lower edge of the box.

[0063] The heating assembly 333 is installed in the box body 331 and is located on a side of the metal heat sink 332 close to the upper edge, and is used to heat the metal heat sink 332 so that the metal heat sink generates heat energy (such as infrared light). Figure 1 , Figure 2 and Figure 7 As shown, the blower inputs air flow into the interior of the box through the air duct 335 via the air outlet c (indicated by the dotted line of the hollow arrow), and the air flow then passes through the guide holes of the metal heat sink, carrying the heat energy generated by the metal heat sink and blowing toward the road surface to be paved with the colored slurry sealing layer, thereby raising the temperature of the road surface.

[0064] As a preferred embodiment, the heating component 333 is a gas fuel heating component. Specifically, the heating component 333 includes: a combustion chamber 3331 , a fuel pipe 3332 and an igniter 3333 .

[0065] The combustion chamber 3331 is installed in the box body 331 and is located on a side close to the upper edge of the metal heat sink 332. The upper part of the combustion chamber 3331 is provided with a first air inlet and a plurality of second air inlet b connected to the blast port c. The lower part of the combustion chamber 3331 is provided with a plurality of flame holes d. The flame holes d are aligned with the metal heat sink 332.

[0066] The fuel pipe 3332 is used to transport gas fuel into the combustion chamber. The fuel pipe 3332 passes through the upper edge of the box body and is connected to the first air inlet. The igniter 3333 is installed below the combustion chamber 3331.

[0067] Continue reading Figure 1 , Figure 2 and Figure 7 As shown, a fuel gas tank storage box 7 is installed on the color paste paver body 1. The fuel gas tank storage box 7 stores a fuel gas tank, which is connected to a fuel pipe. A control valve is provided on the fuel pipe. One end of the fuel pipe connected to the first air inlet is connected to a tee pipe. The end of the fuel pipe is connected to the first pipe opening of the tee pipe. A nozzle e is provided in the fuel pipe, and gas fuel is sprayed into the first pipe opening through the nozzle (indicated by the dotted line of the solid arrow). In order to improve the combustion rate of the gas fuel, the air duct is connected to the second pipe opening of the tee pipe. The second pipe opening is provided with an electric air valve f. The airflow in the air duct is discharged to the second pipe opening through the shunt part of the electric air valve f. The third pipe opening of the tee pipe is connected to the first air inlet. The airflow shunted to the second pipe opening entrains the gas fuel and is transported to the fuel chamber. The electronic fire of the igniter 3333 ignites the gas fuel. The flame generated by the ignition of the gas fuel heats the metal heat sink under the entrainment of the airflow entering the second air inlet, so that the metal heat sink generates uniform heat energy to increase the road surface temperature.

[0068] Furthermore, there are multiple heating components 333. The multiple heating components are arranged along the length direction of the box. The four groups of heating components 333 at both ends of the box can be closed or opened separately under the separation of the insulation side plates to adjust the heating width of the fixed heating direction.

[0069] As a preferred embodiment, the combustion chamber 3331 is equipped with a temperature sensor 37, and the temperature sensor 37 is located below the flame hole d. The temperature sensor is used to obtain the heating temperature of the heating component. The fuel pipe 3332 is equipped with an electric gas valve f, and the electric gas valves f and temperature sensors 37 of multiple heating components 333 are connected to the controller 36. When the heating temperature of one group of heating components fails to reach the preset temperature, the controller can control the air flow and the gas fuel intake to adjust the heating temperature of the group of heating components, so that the metal heat sink can dissipate heat evenly to evenly heat the temperature of the road surface.

[0070] In this embodiment, in order to improve the energy efficiency utilization rate, a fire-resistant windproof brush 336 is installed at the lower edge of the box body, and the fire-resistant windproof brush 336 is arranged along the lower edge. On the one hand, the fire-resistant windproof brush cleans the debris on the road surface under the movement of the color slurry paver body 1, and keeps the road surface to be paved with the color slurry seal clean. On the other hand, the heat energy generated by the metal heat sink is retained in the lower edge, thereby improving the utilization rate of heat energy.

[0071] A plurality of running wheels 337 are connected to the outside of the box, and the distance between the bottom of the running wheels and the metal heat sink is a preset distance for road surface heating.

[0072] In this embodiment, the internal structures of the fixed heating box and the extended heating box are the same and have no difference, so the structure of the extended heating box will not be described in detail here.

[0073] The present invention provides a color slurry paving equipment, comprising: a color slurry paving machine body 1, a color slurry paving box 2 and a color slurry pavement preheating device 3.

[0074] See also Figure 1 and Figure 2 As shown, the color paste paver body 1 is equipped with a color paste liquid material storage box 5, a color paste dry material storage box 6, a fuel gas tank storage box 7, a blower 334 and a controller 36. The color paste paving box 2 is connected to the tail end of the color paste paver body 1. The color paste pavement preheating device 3 is arranged in front of the color paste paving box 2, and the support frame 31 of the color paste pavement preheating device 3 is connected to the bottom of the color paste paver body 1. The fixed heating box 33 of the color paste pavement preheating device 3 is aligned with the road surface to be paved with the color paste seal layer.

[0075] As a preferred embodiment, insulation components are respectively connected between the two ends of the fixed heating box 33 (or the extended heating boxes on both sides of the fixed heating box) and the two ends of the color paste spreading box 2. Preferably, the insulation components are silicone flame retardant cloth.

[0076] When the colored slurry spreading machine body 1 moves forward, the heat energy generated by the metal heat sinks of the fixed heating box and the extended heating box is enclosed by the insulation parts on both sides to form a heat transfer channel. The heat is transferred to the colored slurry mixture in the colored slurry spreading box behind the extended heating box through the heat transfer channel, further improving the thermal energy utilization efficiency and saving construction costs.

[0077] In essence, in this embodiment, when an extended heating box is provided, the insulation component is connected to the outside of the extended heating box and the color slurry spreading box, forming a heat preservation cover between the two, which is used to insulate the heated road surface. On the one hand, it prevents the heat from being lost quickly, and on the other hand, the stored heat can heat the color slurry spreading box, increase the temperature of the color slurry mixture in the color slurry spreading box, and then improve the curing quality of the color slurry sealing layer, thereby achieving multiple goals at one stroke.

[0078] The present invention also provides a color paste paving method, comprising the following steps:

[0079] S1: Turn on the fixed heating box 33 of the color slurry pavement preheating device 3, and the fixed heating box 33 preheats the pavement to be paved with the color slurry seal layer.

[0080] S2: After the road surface is preheated, the color slurry spreading machine body 1 is moved and the color slurry spreading box 2 is opened, and the color slurry spreading box 2 spreads the color slurry sealing layer on the preheated road surface.

[0081] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0082] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, some details in the embodiments should not be construed as limiting the present invention, and the present invention shall be protected by the scope defined by the attached claims.

Claims

1. A color mortar pavement preheating device, characterized in that: include: Support frame; A lifting assembly, comprising a guide rail installed at the bottom of the support frame, a vertical guide groove formed in the guide rail, a sliding member slidably arranged in the guide groove, the sliding member being connected to a traction rope, and a driving member for pulling the traction rope upwards installed on the support frame; and A fixed heating box for heating the road surface to be paved with the color slurry seal layer, connected to the sliding member, and a plurality of running wheels are installed at the lower part of the fixed heating box; It also includes an extended heating box, which is arranged with the fixed heating box along the paving direction of the color paste sealing layer. The number of the lifting components is multiple sets, and the sliding member of one of the lifting components is installed with a horizontal pushing component for pushing the extended heating box to the outside of the fixed heating box along the width direction of the color paste sealing layer; The transverse thrust assembly comprises: casing; A horizontal thrust cylinder is installed in the first end of the sleeve; and A telescopic rod, wherein the first end of the telescopic rod is inserted into the second end of the sleeve, the first end of the horizontal push cylinder is connected to the first end of the telescopic rod, and the second end of the telescopic rod is connected to the expansion heating box; The driving member is a lifting cylinder, the supporting frame is provided with a fixed pulley, the traction rope is wound around the fixed pulley and connected to the lifting cylinder.

2. The color mortar pavement preheating device according to claim 1 is characterized in that: The fixed heating box comprises: A box body connected to the sliding member of the lifting assembly, the box body having a closed upper edge and an open lower edge, the upper edge being provided with an air blast port; A metal heat sink is installed in the lower edge, and the metal heat sink is provided with a plurality of flow-guiding through holes facing the outside of the box body; and A heating component for heating the metal heat sink is installed in the box and is located on a side of the metal heat sink close to the upper edge.

3. The color mortar pavement preheating device according to claim 2 is characterized in that: The heating assembly comprises: A combustion chamber is installed in the box body and is located on a side of the metal heat sink close to the upper edge. A first air inlet hole and a plurality of second air inlet holes connected to the tuyere are opened at the upper portion of the combustion chamber. A plurality of flame-spraying holes are opened at the lower portion of the combustion chamber. The flame-spraying holes are aligned with the metal heat sink. A fuel pipe for conveying gaseous fuel, passing through the upper edge and connected to the first air inlet; and An igniter is installed in the combustion chamber.

4. The color mortar pavement preheating device according to claim 3 is characterized in that: There are multiple heating assemblies, the combustion chamber is equipped with a temperature sensor, the temperature sensor is located below the flame hole, the fuel pipe is equipped with an electric gas valve, and the electric gas valves of the multiple heating assemblies and the temperature sensor are connected to a controller.

5. A color paste spreading device, characterized in that: include: Color slurry paver body; A color paste spreading box, connected to the rear end of the color paste spreading machine body; as well as The colored slurry pavement preheating device as described in any one of claims 1 to 4, wherein the colored slurry pavement preheating device is arranged in front of the colored slurry paving box, the support frame of the colored slurry pavement preheating device is connected to the bottom of the colored slurry paver body, and the fixed heating box of the colored slurry pavement preheating device is aligned with the pavement on which the colored slurry sealing layer is to be paved.

6. The color paste spreading equipment according to claim 5, characterized in that: Insulation components are respectively connected between the two ends of the fixed heating box and the two ends of the color paste spreading box.

7. A method for spreading colored paste using a colored paste spreading device as claimed in any one of claims 5 to 6, characterized in that: The following steps are involved: Turning on the fixed heating box of the color slurry pavement preheating device so that the fixed heating box preheats the pavement on which the color slurry seal layer is to be paved; After the road surface is preheated, the color slurry spreading machine body is moved and the color slurry spreading box is opened, and the color slurry spreading box spreads the color slurry sealing layer on the preheated road surface.

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