CN108086123B - Modularized zoned hot air circulation type asphalt pavement heater - Google Patents
Modularized zoned hot air circulation type asphalt pavement heater Download PDFInfo
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- CN108086123B CN108086123B CN201810044678.8A CN201810044678A CN108086123B CN 108086123 B CN108086123 B CN 108086123B CN 201810044678 A CN201810044678 A CN 201810044678A CN 108086123 B CN108086123 B CN 108086123B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
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Abstract
The invention discloses a modularized zoned hot air circulation type asphalt pavement heater which comprises a frame (1), wherein a cab (10), a gas tank assembly (3), a fuel tank (2) and a power device (4) are respectively arranged above the frame (1) from front to back, gasifiers (9) are arranged on the left side and the right side of the power device (4), the front end and the rear end of the frame (1) are respectively movably connected with a group of heating walls (6) through heating wall lifting overturning swinging frame assemblies (7), and a group of heating walls (6) are movably connected between the front and the rear axles below the frame (1) through heating wall lifting sliding frame assemblies (8). According to the modularized zoned hot air circulation type asphalt pavement heater, accurate control of modularized zoned heating temperature is realized, and uniformity of the whole heating surface is ensured; the method has good adaptability for large-curve construction, large-angle climbing, transition transportation and the like; the modularized heating wall variable power, intermittent heating and cluster control are realized, the heating efficiency is high, the heating depth is deep, and the disease working condition adaptability is strong.
Description
Technical Field
The invention relates to a modularized zoned hot air circulation type asphalt pavement heater, in particular to a hot air circulation type asphalt pavement heater for an in-situ thermal regeneration train, and belongs to the field of road maintenance equipment.
Background
The heater is used for heating and softening asphalt pavement, the in-situ heating technology is a core technology of in-situ heat regeneration, and the current heaters of domestic and foreign manufacturers mainly have the following defects:
(1) And (5) burning the pavement and polluting the environment. The pavement heater adopts a fuel oil/gas open fire heating mode and a fuel gas infrared heating mode, the heating temperature of the asphalt pavement is not easy to accurately control, ageing and coking of asphalt on the surface layer of 1-5 mm of the asphalt pavement are easy to cause, the pavement performance of the regenerated pavement is reduced, and the construction process is accompanied by a large amount of toxic blue smoke, so that the serious environmental pollution problem exists;
(2) The pavement is heated unevenly, and the peripheral vegetation is easy to be burnt. The large-scale high-power diesel oil hot air circulation heating type road surface heater on the market has the serious problem of uneven heating (transverse and longitudinal), is mainly characterized in that the middle temperature is high, the asphalt scorching and deterioration are easy to occur in the areas with concentrated speed and temperature, and the environment is polluted by toxic smoke; the temperature of two sides is low, high-temperature flue gas is easy to leak, and peripheral vegetation is easy to burn and destroy during construction;
(3) The adaptability of curve construction, climbing operation and the like is poor. The road surface heater on the market cannot adjust the posture of the heating device in real time according to the adjustment of the curve size and the climbing angle, and has poor adaptability in curve operation, climbing operation and the like;
(4) Inaccurate temperature control and poor disease adaptability. The temperature of a single heating wall and the temperature collocation of a cluster are not suitable for accurate control, the utilization rate of energy sources is low, the heating efficiency is low, the heating depth is shallow, the regeneration thickness can be limited to 30-50 mm, deep diseases can not be well treated, and the working condition adaptability is poor.
(5) Super-contour, overweight, overrun. Hot air heaters in the market all adopt a single group of heating walls, and the size of a required hot air furnace is large, the diameter of the hot air furnace hearth, the length of the hot air furnace hearth and the like are also large, so that the overall dimension of the whole machine is huge, the weight exceeds standard and the like, and climbing and transition are difficult.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art, providing the modularized zoned hot air circulation type asphalt pavement heater, realizing the accurate control of modularized zoned heating temperature, ensuring the uniformity of the whole heating surface, realizing the recycling of energy sources, protecting environment, saving energy and being efficient, and solving the problems of scorching the pavement, environmental pollution, uneven pavement heating and easy scorching of peripheral vegetation of the pavement heater in the market; the front heating wall and the rear heating wall are adjusted in ground clearance, swing in a left-right large angle, turn over in a large angle and slide in a left-right bidirectional manner, and the front heating wall and the rear heating wall have good adaptability in large-curve construction, large-angle climbing, transition transportation and the like; the modularized heating wall variable power, intermittent heating and cluster control are realized, the heating efficiency is high, the heating depth is deep, and the disease working condition adaptability is strong.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a modularization subregion heated air circulation formula bituminous paving heater, includes the frame, be provided with traveling system under the frame, the frame top is provided with driver's cabin, gas pitcher assembly, fuel tank, power device from front to back respectively, power device's left and right sides is provided with the gasifier, both ends are respectively through heating wall promotion upset swing frame assembly activity even have a set of heating wall around the frame, the frame below is located between the front and back bridge and has a set of heating wall through heating wall promotion slip frame assembly activity even, the heating wall includes middle main hot air heating wall and sets up two left and right pair hot air heating walls in middle main hot air heating wall left and right sides, left and right pair hot air heating wall with middle main hot air heating wall articulates mutually.
The hot air heating device is characterized in that two oil-gas dual-purpose burners, two hot air stoves, two air distribution boxes, two groups of air return channels and two circulating fans are alternately arranged on the middle main hot air heating wall, the oil-gas dual-purpose burners are positioned at the front ends of the hot air stoves, the air distribution boxes are connected at the tail ends of the hot air stoves, one end of each circulating fan is connected with the air return channel arranged around the heating wall, the other end of each circulating fan is connected with the hot air stoves, a heating wall frame is arranged outside the middle main hot air heating wall, four groups of hot air sealing covers are arranged in the middle main hot air heating wall, the air distribution boxes are connected with the hot air sealing covers in a bilateral symmetry manner, guide plate assemblies are arranged inside the hot air sealing covers, and air outlet and flow equalization porous plates are positioned at the bottom of the middle main hot air heating wall and are connected with the hot air sealing covers.
The left and right auxiliary hot air heating walls comprise auxiliary heating wall frames outside the left and right auxiliary hot air heating walls, two groups of auxiliary hot air sealing covers are arranged in the left and right auxiliary hot air heating walls, auxiliary return air channels are arranged on the left and right auxiliary hot air heating walls, auxiliary air outlet flow equalizing porous plates connected with the auxiliary hot air sealing covers are arranged at the bottoms of the left and right auxiliary hot air heating walls, the auxiliary hot air sealing covers are communicated with the hot air sealing covers, and the auxiliary return air channels and the return air channels form closed circulating return air channels.
The guide plate assembly comprises guide plates I and guide plates II which are arranged left and right and symmetrically arranged, the guide plates II are located on the outer sides of the guide plates I, the guide plate assembly further comprises a plurality of groups of baffle plates which are arranged front and back and symmetrically arranged, inclined plane flow throwing plates are arranged on the guide plates I and the guide plates II, and middle sharp corner flow throwing plates are arranged between the guide plates I.
The width L1 of the inclined plane flow throwing plate is 10-20 mm, and the distance L2 from the air outlet flow equalizing porous plate is 180-200 mm.
The included angle alpha between the two groups of guide plates I is 45-60 degrees, and the included angle beta between the two groups of guide plates II is 100-120 degrees.
The sharp angle gamma of the middle sharp angle flow throwing plate is 20-30 degrees.
The air outlet holes of the air outlet flow equalizing porous plate are distributed in a staggered array, the diameter A of each air outlet hole is phi 5-phi 8, the horizontal distance L3 between every two adjacent air outlet holes is 25mm, and the vertical distance L4 between every two adjacent air outlet holes is 25mm.
The heating wall promotes upset swing frame assembly 7 includes mount, hoisting frame, hoisting cylinder, swing frame, swing cylinder, heating wall link, upset fixed beam, upset hydro-cylinder, the mount with the frame links to each other, the hoisting frame nest in among the mount, its top is connected the upset fixed beam, the hoisting cylinder body end with the mount links to each other, the piston rod end with upset fixed beam round pin hub connection, the swing frame with the hoisting frame articulates from top to bottom, the cylinder body end of swing cylinder is fixed in on the hoisting frame, the piston rod end with swing frame round pin hub connection, the heating wall link with swing frame hinges about, upset hydro-cylinder body end links to each other with upset fixed beam, the piston rod end with heating wall link round pin hub connection, the heating wall link with middle main hot-blast heating wall is connected.
The heating wall lifting sliding frame assembly comprises an outer fixed sleeve, an inner lifting sleeve, an upper and lower adjusting oil cylinder, pulleys, sliding rails and a left and right sliding oil cylinder, wherein four groups of outer fixed sleeves are symmetrically connected to the left and right sides of the frame, the inner lifting sleeve is sleeved in the outer fixed sleeve, two ends of the upper and lower adjusting oil cylinder are respectively connected with the outer fixed sleeve and the inner lifting sleeve, the four groups of inner lifting sleeves are respectively provided with the pulleys, the pulleys are nested in the front and rear two groups of sliding rails, the sliding rails are fixed on the middle main hot air heating wall, the cylinder body ends of the left and right sliding oil cylinders are arranged on the inner lifting sleeve, and the piston rod ends are connected with the left and right ends of the sliding rails through pin shafts.
The invention has the beneficial effects that: the modularized zoned hot air circulation type asphalt pavement heater is characterized in that a modularized zoned hot air circulation heating technology is adopted, a unique design such as a wind distribution box, a modularized heating unit, a combined wind guiding structure of a multi-level guide plate and a baffle plate, an annular circulating air duct and the like is introduced, the modularized zoned heating temperature is accurately controlled, the uniformity of the whole heating surface is ensured, the recycling of energy sources is realized, and the problems of pavement scorching, environmental pollution, uneven pavement heating and easy scorching of peripheral vegetation of the pavement heater in the market are solved; the novel structural design of lifting, overturning and swinging of the front heating wall and the rear heating wall and lifting and sliding of the middle heating wall is adopted, so that the front heating wall and the rear heating wall are adjusted to have the height of 0-750 mm from the ground, swing at a large angle of left and right 10 degrees, overturn at a large angle of 90 degrees and sliding of the middle heating wall at a left and right direction of 750mm are realized, and the front heating wall and the rear heating wall have good adaptability to large-curve construction, large-angle climbing, transition transportation and the like; through the detection of modularization air-out and return air temperature, realized that the modularization heating wall becomes power, intermittent type heating and cluster control, heating efficiency is high, the heating degree of depth is dark, disease operating mode strong adaptability.
Drawings
FIG. 1 is a front view of a modular zoned hot air circulation asphalt pavement heater of the present invention;
FIG. 2 is a top view of the back of a modular zoned hot air circulating asphalt pavement heater of the present invention;
FIG. 3 is a perspective view of the operating state of the upright in a modular zoned hot air circulation asphalt pavement heater of the present invention (front left 45 °);
FIG. 4 is a diagram of the driving state of the circular ring (front left 45 °) in a modular zoned hot air circulating asphalt pavement heater according to the present invention;
FIG. 5 is a schematic diagram of a modular heating wall arrangement (one);
FIG. 6 is a schematic diagram of a modular heating wall arrangement (II);
FIG. 7 is a schematic diagram of a modular heating wall arrangement (III);
FIG. 8 is a schematic view of a baffle assembly;
FIG. 9 is a schematic diagram of the dimensions of the gas outlet flow equalization porous plate structure;
FIG. 10 is a schematic view of a heated wall lifting and flipping swing frame assembly;
FIG. 11 is a schematic view of a heated wall lifting skid assembly;
FIG. 12 is a schematic view of front and rear heating walls swinging side-to-side and middle heating wall sliding side-to-side;
FIG. 13 is a schematic illustration of a large curve construction of the present invention;
FIG. 14 is a schematic view of a large angle climbing after lifting a heating wall;
fig. 15 is a schematic diagram of a modular variable power intermittent heating of the present invention.
In the figure: 1. the device comprises a frame, 2, a fuel tank, 3, a gas tank assembly, 4, a power device, 5, a traveling system, 6, a heating wall, 6-1, a middle main hot air heating wall, 6-1-1, an oil-gas dual-purpose burner, 6-1-2, a hot blast stove, 6-1-3, a wind distributing box, 6-1-4, a hot air sealing cover, 6-1-5, a guide plate assembly, 6-1-5-1, a guide plate I, 6-1-5-2, a guide plate II, 6-1-5-3, a baffle plate, 6-1-5-4, an inclined plane throwing plate, 6-1-5-5, a middle sharp angle throwing plate, 6-1-6, an air outlet current equalizing porous plate, 6-1-7, a return air channel, 6-1-8 and a circulating fan, 6-1-9, a heating wall frame, 6-1-10, a temperature sensor I, 6-1-11, a temperature sensor II, 6-2, a left and right auxiliary hot air heating wall, 6-2-1, an auxiliary hot air sealing cover, 6-2-2, an auxiliary air outlet flow equalizing porous plate, 6-2-3, an auxiliary return air channel, 6-2-4, an auxiliary heating wall frame, 7, a heating wall lifting turnover swinging frame assembly, 7-1, a fixing frame, 7-2, a lifting frame, 7-3, a lifting oil cylinder, 7-4, a swinging frame, 7-5, a swinging oil cylinder, 7-6, a heating wall connecting frame, 7-7, a turnover fixing beam, 7-8 and a turnover oil cylinder, 8. lifting sliding frame assembly, 8-1, outer fixed sleeve, 8-2, inner lifting sleeve, 8-3, up-down adjusting oil cylinder, 8-4, pulley, 8-5, slide rail, 8-6, left-right sliding oil cylinder, 9, gasifier, 10, cab, L1, width of inclined plane throwing flow plate, L2, distance of inclined plane throwing flow plate from air outlet flow equalizing porous plate, L3, adjacent air outlet hole horizontal distance, L4, adjacent air outlet hole vertical distance, A, air outlet hole diameter, angle between two groups of guide plates I, angle between two groups of guide plates II, angle between gamma, sharp angle of middle sharp angle throwing flow plate, delta, swinging angle of hot air heating wall around hinge point.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the following examples are only for more clearly illustrating the technical aspects of the present invention, and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 to 4, the modularized zoned hot air circulation type asphalt pavement heater comprises a frame 1, a fuel tank 2, a gas tank assembly 3, a power device 4, a running system 5, a heating wall 6, a heating wall lifting turnover swinging frame assembly 7, a heating wall lifting sliding frame assembly 8, a gasifier 9 and a cab 10. The lower part of the frame 1 is provided with a traveling system 5, a cab 8, a gas tank assembly 3, a fuel tank 2 and a power device 4 are respectively arranged above the frame 1 from front to back, the left side and the right side of the power device 4 are provided with a gasifier 9, and the heating wall 6 is provided with three groups which are respectively positioned between the forefront end and the extreme tail end of the heater and the front and rear axles below the frame 1. As shown in fig. 15, the three groups of heating walls 6 in the invention adopt a modularized zoned hot air circulation heating technology.
In this embodiment, the heating wall 6 mainly comprises a middle main hot air heating wall 6-1 and left and right auxiliary hot air heating walls 6-2, the left and right auxiliary hot air heating walls 6-2 are hinged with the middle main hot air heating wall 6-1, the middle main hot air heating wall 6-1 adopts a modularized four-partition design, the left and right auxiliary hot air heating walls 6-2 are used for variable width heating adjustment, and 180-degree turnover can be realized around a hinge point.
In order to solve the problems that the large-scale high-power diesel oil hot air circulation heating type pavement heater in the market has serious heating non-uniformity (transverse and longitudinal), the middle temperature is high, the asphalt scorching and deterioration are easy to occur in a speed and temperature concentration area, and toxic smoke pollution is caused; the invention introduces a unique design of a wind distributing box, a modularized heating unit, a combined wind guiding structure of a multi-level guide plate and a baffle plate, an annular circulating air duct and the like. As shown in fig. 5 and 6, the middle main hot air heating wall 6-1 is composed of two oil gas dual-purpose burners 6-1-1, two hot air stoves 6-1-2, two air distribution boxes 6-1-3, four groups of hot air sealing covers 6-1-4, four groups of guide plate assemblies 6-1-5, four groups of air outlet flow equalizing porous plates 6-1-6, two groups of return air channels 6-1-7, two circulating fans 6-1-8 and a heating wall frame 6-1-9 which are arranged in a staggered manner, the oil gas dual-purpose burners 6-1-1 are positioned at the front end of the hot air stoves 6-1-2, the tail ends of the hot air stoves 6-1-2 are connected with the air distribution boxes 6-1-3, the air distribution boxes 6-1-3 are connected with the hot air sealing covers 6-1-4 in a bilateral symmetry manner, the guide plate assemblies 6-1-5 are arranged inside the hot air sealing covers 6-1-4, the air outlet porous plates 6-1-6 are positioned at the bottom of the middle main hot air heating wall 6-1, the two return air channels 6-7 are connected with the hot air sealing covers 6-1-4, the circulating fans 6-8 are arranged at the periphery of the circulating fans 6-1-8, and the other ends of the circulating fans 6-1-8 are connected with the return air channels 6-1-2.
The left and right auxiliary hot air heating walls 6-2 are composed of auxiliary hot air sealing covers 6-2-1, auxiliary air outlet flow equalizing porous plates 6-2-2, auxiliary return air channels 6-2-3 and auxiliary heating wall frames 6-2-4, the auxiliary hot air sealing covers 6-2-1 are arranged in the left and right auxiliary hot air heating walls 6-2, the auxiliary air outlet flow equalizing porous plates 6-2-2 are positioned at the bottoms of the left and right auxiliary hot air heating walls 6-2 and connected with the auxiliary hot air sealing covers 6-2-1, the auxiliary hot air sealing covers 6-2-1 are communicated with the hot air sealing covers 6-1-4, and the auxiliary return air channels 6-2-3 and the return air channels 6-1-7 form closed circulating return air channels.
In order to solve the problems that a single group of heating walls in the market are unevenly heated, the utilization rate of energy sources is low, the heating efficiency is low, the heating depth is shallow, the regeneration thickness can be limited to 30-50 mm, deep diseases cannot be well treated, the working condition adaptability is poor, and the like, the invention introduces a unique multilayer guide plate structure. As shown in fig. 7 and 8, the baffle assembly 6-1-5 mainly includes symmetrically arranged baffles i 6-1-5-1, baffles ii 6-1-5-2 and a plurality of groups of baffles 6-1-5-3 arranged front and back, wherein the baffles ii 6-1-5-2 are located at the outer side of the baffles i 6-1-5-1. The inclined plane flow throwing plates 6-1-5-4 are arranged on each group of guide plates, the width L1 of each inclined plane flow throwing plate 6-1-5-4 is 10 mm-20 mm, the distance L2 from the air outlet flow equalizing porous plate 6-1-6 is 180 mm-200 mm, the included angle alpha between the two groups of guide plates I6-1-5-1 is 45-60 degrees, the included angle beta between the two groups of guide plates II 6-1-5-2 is 100-120 degrees, the middle sharp angle flow throwing plates 6-1-5-5 are arranged between the two groups of guide plates I6-1-5-1, and the sharp angle gamma of each middle sharp angle flow throwing plate 6-1-5-5 is 20-30 degrees.
As shown in FIG. 9, the air outlet holes of the air outlet flow equalizing porous plates 6-1-6 are arranged in a staggered array, the diameter A of each air outlet hole is phi 5-phi 8, the horizontal distance L3 between the adjacent air outlet holes is 25mm, and the vertical distance L4 between the adjacent air outlet holes is 25mm.
In order to overcome the defect that a road surface heater in the market cannot adjust the posture of a heating device in real time according to the adjustment of the size of a curve and the climbing angle, and the adaptability of curve operation, climbing operation and the like is poor, the invention introduces a heating wall lifting, overturning and swinging structure. As shown in FIG. 10, the heating wall lifting turnover swinging frame assembly 7 consists of a fixed frame 7-1, a lifting frame 7-2, a lifting oil cylinder 7-3, a swinging frame 7-4, a swinging oil cylinder 7-5, a heating wall connecting frame 7-6, a turnover fixed beam 7-7 and a turnover oil cylinder 7-8, wherein the fixed frame 7-1 is connected with the frame 1 through a plurality of bolts, the lifting frame 7-2 is nested in the fixed frame 7-1, the top end of the lifting frame is connected with the turnover fixed beam 7-7, the cylinder end of the lifting oil cylinder 7-3 is connected with the fixed frame 7-1, the piston rod end is connected with the turnover fixed beam 7-7 through a pin shaft, the swinging frame 7-4 is hinged with the lifting frame 7-2 up and down, the cylinder end of the swinging oil cylinder 7-5 is fixed on the lifting frame 7-2, the piston rod end is connected with the swinging frame 7-4 through a pin shaft, the heating wall connecting frame 7-6 is hinged with the swinging frame 7-4 left and right, the cylinder end of the turnover oil cylinder 7-8 is connected with the turnover fixed beam 7-7, the piston rod end is connected with the heating wall connecting frame 7-6 through a pin shaft, the heating wall connecting frame 7-6 is connected with the bolts, the heating wall connecting frame 7-6 is connected with the hot air through a plurality of bolts, the heating wall connecting frame 7-6 is connected with the main oil cylinder 6 through a plurality of hot air lifting cylinders 6, and the main lifting wall 7-1 can achieve a height of between the main wall and a height of 3 mm and a height of the main wall. As shown in fig. 12, under the action of the swinging oil cylinders 7-5, the middle main hot air heating wall 6-1 swings by delta=10° around the hinge point, and under the action of the overturning oil cylinders 7-8, the middle main hot air heating wall 6-1 overturns by 90 ° around the hinge point. As shown in fig. 13 and 14, in the case of a large curve, the modularized zoned hot air circulation type asphalt pavement heater can adjust the posture of the heating device in real time according to the adjustment of the size and the climbing angle of the curve, and has the advantage of strong adaptability in curve operation, climbing operation and the like.
As shown in FIG. 11, the heating wall lifting sliding frame assembly 8 consists of an outer fixing sleeve 8-1, an inner lifting sleeve 8-2, an upper and lower adjusting oil cylinder 8-3, pulleys 8-4, a sliding rail 8-5 and a left and right sliding oil cylinder 8-6, wherein two groups of outer fixing sleeves 8-1 are connected with the frame 1 through a plurality of bolts, four groups of inner lifting sleeves 8-2 are respectively sleeved in the outer fixing sleeve 8-1, two ends of the upper and lower adjusting oil cylinder 8-3 are respectively connected with the outer fixing sleeve 8-1 and the inner lifting sleeve 8-2, one pulley 8-4 is assembled on each of the four groups of inner lifting sleeves 8-2 and nested in the front and rear groups of sliding rails 8-5, the sliding rails 8-5 are fixed on the middle main hot air heating wall 6-1 through a plurality of bolts, the cylinder ends of the left and right sliding oil cylinders 8-6 are connected with the inner lifting sleeves 8-2 through pin shafts, and the piston rod ends are connected with the left and right ends of the sliding rails 8-5. As shown in FIG. 12, under the action of the left and right sliding cylinders 8-6, the middle main hot air heating wall 6-1 can realize left and right sliding by 750mm.
Furthermore, in order to improve the adaptability of the pavement heater, the invention adopts an oil-gas dual-purpose design, the gas tank assembly 3 and the gasifier 9 are used for the fuel gas supply of the oil-gas dual-purpose burner 6-1-1, and the fuel tank 2 is used for the fuel oil supply of the oil-gas dual-purpose burner 6-1-1.
In order to solve the problem that the temperature of a single group of heating walls and the temperature collocation of a cluster are not suitable for accurate control in the market, the invention adopts a multi-point temperature measurement mode, combines the design of a plurality of groups of modularized heating walls, the cluster is provided with the collocation combination of a plurality of heating modules, the hot blast stove 6-1-2 is provided with a temperature sensor I6-1-10 for detecting the air outlet temperature, and the circulating fan 6-1-8 is provided with a temperature sensor II 6-1-11 for detecting the return air temperature.
The invention provides a modularized zoned hot air circulation type asphalt pavement heater, which adopts a modularized zoned hot air circulation heating technology, introduces a unique design of a wind distribution box, a modularized heating unit, a combined wind guide structure of a multi-level guide plate and a baffle plate, an annular circulating air duct and the like, realizes the accurate control of modularized zoned heating temperature, ensures the uniformity of the whole heating surface, realizes the recycling of energy sources, is environment-friendly, energy-saving and efficient, and solves the problems of road scorching, environmental pollution, uneven road heating and easy scorching of peripheral vegetation of the pavement heater in the market; the novel structural design of lifting, overturning and swinging of the front heating wall and the rear heating wall and lifting and sliding of the middle heating wall is adopted, so that the front heating wall and the rear heating wall are adjusted to have the height of 0-750 mm from the ground, swing at a large angle of left and right 10 degrees, overturn at a large angle of 90 degrees and sliding of the middle heating wall at a left and right direction of 750mm are realized, and the front heating wall and the rear heating wall have good adaptability to large-curve construction, large-angle climbing, transition transportation and the like; through the detection of modularization air-out and return air temperature, realized that the modularization heating wall becomes power, intermittent type heating and cluster control, heating efficiency is high, the heating degree of depth is dark, disease operating mode strong adaptability is a novel modularization subregion hot-blast circulation formula bituminous paving heater suitable for hot-in-place recycling.
The foregoing is merely a preferred embodiment of the present invention and it will be apparent to those skilled in the art that numerous modifications and variations can be made without departing from the principles of the invention, and such modifications and variations are to be regarded as being within the scope of the invention.
Claims (8)
1. A modularization subregion heated air circulation formula bituminous paving heater, its characterized in that: comprises a frame (1), a traveling system (5) is arranged under the frame (1), a cab (10), a gas tank assembly (3), a fuel tank (2) and a power device (4) are respectively arranged above the frame (1) from front to back, gasifiers (9) are arranged on the left side and the right side of the power device (4), a group of heating walls (6) are movably connected at the front end and the rear end of the frame (1) through heating wall lifting overturning swinging frame assemblies (7) respectively, a group of heating walls (6) are movably connected between the front end and the rear end of the frame (1) through heating wall lifting sliding frame assemblies (8), the heating wall (6) comprises a middle main hot air heating wall (6-1) and two left and right auxiliary hot air heating walls (6-2) arranged on the left side and the right side of the middle main hot air heating wall (6-1), wherein the left and right auxiliary hot air heating walls (6-2) are hinged with the middle main hot air heating wall (6-1), the middle main hot air heating wall (6-1) adopts a modularized four-partition design, and two oil and gas dual-purpose burners (6-1-1), two hot air furnaces (6-1-2), two air distributing boxes (6-1-3) are arranged on the middle main hot air heating wall (6-1) in a staggered manner, two groups of return air channels (6-1-7) and two circulating fans (6-1-8), wherein the oil-gas dual-purpose burner (6-1-1) is positioned at the front end of the hot blast stove (6-1-2), the tail end of the hot blast stove (6-1-2) is connected with the air distribution box (6-1-3), one end of each circulating fan (6-1-8) is connected with the return air channels (6-1-7) arranged around the heating wall, the other end of each circulating fan is connected with the hot blast stove (6-1-2), the outside of each middle main hot blast heating wall (6-1) is provided with a heating wall frame (6-1-9), four groups of hot blast closed covers (6-1-4) are arranged in each middle main hot blast heating wall (6-1), the air distribution boxes (6-1-3) are connected with the hot blast closed covers (6-1-4) in a bilateral symmetry manner, flow guide plate assemblies (6-1-5) are arranged inside the hot blast closed covers (6-1-4), air outlet porous plates (6-1-6) are positioned at the outside of the middle main hot blast heating walls (6-1-1) and are connected with the bottom of the main heating walls (6-1-1) respectively, the left and right auxiliary hot air heating walls (6-2) comprise auxiliary heating wall frames (6-2-4) outside the left and right auxiliary hot air heating walls (6-2), two groups of auxiliary hot air sealing covers (6-2-1) are arranged in the left and right auxiliary hot air heating walls (6-2), auxiliary return air channels (6-2-3) are arranged on the left and right auxiliary hot air heating walls (6-2), auxiliary air outlet current equalizing porous plates (6-2-2) connected with the auxiliary hot air sealing covers (6-2-1) are arranged at the bottoms of the left and right auxiliary hot air heating walls (6-2), the auxiliary hot air sealing covers (6-2-1) are communicated with the hot air sealing covers (6-1-4), and the auxiliary return air channels (6-2-3) and the return air channels (6-1-7) form closed circulating return air channels.
2. The modular zoned heated air circulation asphalt pavement heater of claim 1, wherein: the guide plate assembly (6-1-5) comprises guide plates I (6-1-5-1) and guide plates II (6-1-5-2) which are arranged left and right and are symmetrically arranged, the guide plates II (6-1-5-2) are positioned on the outer sides of the guide plates I (6-1-5-1), the guide plates assembly also comprises a plurality of groups of baffle plates (6-1-5-3) which are arranged front and back and are symmetrically arranged, inclined plane throwing plates (6-1-5-4) are arranged on the guide plates I (6-1-5-1) and the guide plates II (6-1-5-2), and middle sharp corner throwing plates (6-1-5-5) are arranged between the guide plates I (6-1-5-1).
3. A modular zoned heated air circulation asphalt pavement heater according to claim 2, wherein: the width L1 of the inclined plane flow throwing plate (6-1-5-4) is 10 mm-20 mm, and the distance L2 from the air outlet flow equalizing porous plate (6-1-6) is 180 mm-200 mm.
4. A modular zoned heated air circulation asphalt pavement heater according to claim 2, wherein: the included angle alpha between the two groups of guide plates I (6-1-5-1) is 45-60 degrees, and the included angle beta between the two groups of guide plates II (6-1-5-2) is 100-120 degrees.
5. A modular zoned heated air circulation asphalt pavement heater according to claim 2, wherein: the sharp angle gamma of the middle sharp angle flow throwing plate (6-1-5-5) is 20-30 degrees.
6. A modular zoned heated air circulation asphalt pavement heater according to claim 2, wherein: the air outlet holes of the air outlet flow equalizing porous plates (6-1-6) are arranged in a staggered array, the diameter A of each air outlet hole is phi 5-phi 8, the horizontal distance L3 between every two adjacent air outlet holes is 25mm, and the vertical distance L4 between every two adjacent air outlet holes is 25mm.
7. The modular zoned heated air circulation asphalt pavement heater of claim 1, wherein: the heating wall lifting turnover swinging frame assembly 7 comprises a fixing frame (7-1), a lifting frame (7-2), a lifting oil cylinder (7-3), a swinging frame (7-4), a swinging oil cylinder (7-5), a heating wall connecting frame (7-6), a turnover fixing beam (7-7) and a turnover oil cylinder (7-8), wherein the fixing frame (7-1) is connected with the frame (1), the lifting frame (7-2) is nested in the fixing frame (7-1), the top end of the lifting frame is connected with the turnover fixing beam (7-7), the cylinder body end of the lifting oil cylinder (7-3) is connected with the fixing frame (7-1), the piston rod end is connected with the turnover fixing beam (7-7) through a pin shaft, the cylinder body end of the swinging oil cylinder (7-5) is fixed on the lifting frame (7-2), the piston rod end is connected with the swinging frame (7-4) through a pin shaft, the heating wall connecting frame (7-6) is connected with the swinging oil cylinder rod end (7-4) through a pin shaft, the piston rod end is connected with the turnover fixing beam (7-8) through a hinge joint, the heating wall connecting frame (7-6) is connected with the left side of the piston rod end (7-6), the heating wall connecting frame (7-6) is connected with the middle main hot air heating wall (6-1).
8. The modular zoned heated air circulation asphalt pavement heater of claim 1, wherein: the heating wall lifting sliding frame assembly (8) comprises an outer fixing sleeve (8-1), an inner lifting sleeve (8-2), an upper and lower adjusting oil cylinder (8-3), pulleys (8-4), sliding rails (8-5) and a left and right sliding oil cylinder (8-6), four groups of the outer fixing sleeve (8-1) are symmetrically connected to the left and right sides of the frame (1), the inner lifting sleeve (8-2) is sleeved in the outer fixing sleeve (8-1), two ends of the upper and lower adjusting oil cylinder (8-3) are respectively connected with the outer fixing sleeve (8-1) and the inner lifting sleeve (8-2), the pulleys (8-4) are respectively assembled on the four groups of the inner lifting sleeve (8-2), the pulleys (8-4) are nested in the front and rear two groups of sliding rails (8-5), the sliding rails (8-5) are fixed on the middle main hot air heating wall (6-1), and the left and right sliding oil cylinder (8-6) body ends are sleeved on the inner fixing sleeve (8-1) and the left and right sliding oil cylinder ends are connected with the left and right sliding shafts (8-5).
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| CN201810044678.8A CN108086123B (en) | 2018-01-17 | 2018-01-17 | Modularized zoned hot air circulation type asphalt pavement heater |
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| CN201810044678.8A CN108086123B (en) | 2018-01-17 | 2018-01-17 | Modularized zoned hot air circulation type asphalt pavement heater |
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| CN108086123B true CN108086123B (en) | 2024-01-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108487020B (en) * | 2018-06-05 | 2024-04-16 | 江苏集萃道路工程技术与装备研究所有限公司 | Heated air circulation heating device and asphalt pavement heater thereof |
| CN108560389B (en) * | 2018-06-05 | 2024-04-16 | 江苏集萃道路工程技术与装备研究所有限公司 | Heating wall operation actuating mechanism and asphalt pavement heater thereof |
| CN111305029B (en) * | 2020-01-20 | 2022-05-20 | 河南越秀尉许高速公路有限公司 | Environment-friendly long-life composite asphalt pavement in-place heat regeneration device |
| CN111411567B (en) * | 2020-04-21 | 2024-09-24 | 江苏集萃道路工程技术与装备研究所有限公司 | Asphalt pavement heater |
| CN111593649A (en) * | 2020-05-15 | 2020-08-28 | 江苏集萃道路工程技术与装备研究所有限公司 | Asphalt pavement heating milling machine |
| CN112064476B (en) * | 2020-09-29 | 2024-10-18 | 江苏集萃道路工程技术与装备研究所有限公司 | Stirring device for in-situ thermal regeneration and remixer |
| CN112900213B (en) * | 2021-01-25 | 2022-11-25 | 江苏集萃道路工程技术与装备研究所有限公司 | Hot air circulation heating device with temperature control system and temperature control method |
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Denomination of invention: A modular partition hot air circulation asphalt pavement heating machine Granted publication date: 20240123 Pledgee: Bank of Nanjing Co.,Ltd. Xuzhou Branch Pledgor: JIANGSU JITRI ROAD ENGINEERING TECHNOLOGY AND EQUIPMENT RESEARCH INSTITUTE Co.,Ltd. Registration number: Y2024980024817 |